diff options
Diffstat (limited to 'firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS')
27 files changed, 12239 insertions, 0 deletions
diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/CPU/CYCLE_COUNTER/cycle_counter.h b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/CPU/CYCLE_COUNTER/cycle_counter.h new file mode 100644 index 0000000..d0c51df --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/CPU/CYCLE_COUNTER/cycle_counter.h @@ -0,0 +1,309 @@ +/* This header file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file has been prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief Cycle counter driver. + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32UC devices. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + *****************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#ifndef _CYCLE_COUNTER_H_ +#define _CYCLE_COUNTER_H_ + +#include "compiler.h" + + +//! Structure holding private information, automatically initialized by the +//! cpu_set_timeout() function. +typedef struct +{ + //! The cycle count at the begining of the timeout. + unsigned long delay_start_cycle; + + //! The cycle count at the end of the timeout. + unsigned long delay_end_cycle; + + //! Enable/disable the timout detection + unsigned char timer_state; + #define CPU_TIMER_STATE_STARTED 0 + #define CPU_TIMER_STATE_REACHED 1 + #define CPU_TIMER_STATE_STOPPED 2 +} t_cpu_time; + + +/*! + * \brief Convert milli-seconds into CPU cycles. + * + * \param ms: Number of millisecond. + * \param fcpu_hz: CPU frequency in Hz. + * + * \return the converted number of CPU cycles. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ U32 cpu_ms_2_cy(unsigned long ms, unsigned long fcpu_hz) +{ + return ((unsigned long long)ms * fcpu_hz + 999) / 1000; +} + + +/*! + * \brief Convert micro-seconds into CPU cycles. + * + * \param us: Number of microsecond. + * \param fcpu_hz: CPU frequency in Hz. + * + * \return the converted number of CPU cycles. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ U32 cpu_us_2_cy(unsigned long us, unsigned long fcpu_hz) +{ + return ((unsigned long long)us * fcpu_hz + 999999) / 1000000; +} + + +/*! + * \brief Convert CPU cycles into milli-seconds. + * + * \param cy: Number of CPU cycles. + * \param fcpu_hz: CPU frequency in Hz. + * + * \return the converted number of milli-second. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ U32 cpu_cy_2_ms(unsigned long cy, unsigned long fcpu_hz) +{ + return ((unsigned long long)cy * 1000 + fcpu_hz-1) / fcpu_hz; +} + + +/*! + * \brief Convert CPU cycles into micro-seconds. + * + * \param cy: Number of CPU cycles. + * \param fcpu_hz: CPU frequency in Hz. + * + * \return the converted number of micro-second. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ U32 cpu_cy_2_us(unsigned long cy, unsigned long fcpu_hz) +{ + return ((unsigned long long)cy * 1000000 + fcpu_hz-1) / fcpu_hz; +} + + +/*! + * \brief Set a timer variable. + * + * Ex: t_cpu_time timer; + * cpu_set_timeout( cpu_ms_2_cy(10, FOSC0), &timer ); // timeout in 10 ms + * if( cpu_is_timeout(&timer) ) + * cpu_stop_timeout(&timer); + * ../.. + * + * \param delay: (input) delay in CPU cycles before timeout. + * \param cpu_time: (output) internal information used by the timer API. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void cpu_set_timeout(unsigned long delay, t_cpu_time *cpu_time) +{ + cpu_time->delay_start_cycle = Get_system_register(AVR32_COUNT); + cpu_time->delay_end_cycle = cpu_time->delay_start_cycle + delay; + cpu_time->timer_state = CPU_TIMER_STATE_STARTED; +} + + +/*! + * \brief Test if a timer variable reached its timeout. + * + * Once the timeout is reached, the function will always return TRUE, + * until the cpu_stop_timeout() function is called. + * + * Ex: t_cpu_time timer; + * cpu_set_timeout( 10, FOSC0, &timer ); // timeout in 10 ms + * if( cpu_is_timeout(&timer) ) + * cpu_stop_timeout(&timer); + * ../.. + * + * \param cpu_time: (input) internal information used by the timer API. + * + * \return TRUE if timeout occured, otherwise FALSE. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ unsigned long cpu_is_timeout(t_cpu_time *cpu_time) +{ + unsigned long current_cycle_count = Get_system_register(AVR32_COUNT); + + if( cpu_time->timer_state==CPU_TIMER_STATE_STOPPED ) + return FALSE; + + // Test if the timeout as already occured. + else if (cpu_time->timer_state == CPU_TIMER_STATE_REACHED) + return TRUE; + + // If the ending cycle count of this timeout is wrapped, ... + else if (cpu_time->delay_start_cycle > cpu_time->delay_end_cycle) + { + if (current_cycle_count < cpu_time->delay_start_cycle && current_cycle_count > cpu_time->delay_end_cycle) + { + cpu_time->timer_state = CPU_TIMER_STATE_REACHED; + return TRUE; + } + return FALSE; + } + else + { + if (current_cycle_count < cpu_time->delay_start_cycle || current_cycle_count > cpu_time->delay_end_cycle) + { + cpu_time->timer_state = CPU_TIMER_STATE_REACHED; + return TRUE; + } + return FALSE; + } +} + + +/*! + * \brief Stop a timeout detection. + * + * Ex: t_cpu_time timer; + * cpu_set_timeout( 10, FOSC0, &timer ); // timeout in 10 ms + * if( cpu_is_timeout(&timer) ) + * cpu_stop_timeout(&timer); + * ../.. + * + * \param cpu_time: (input) internal information used by the timer API. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void cpu_stop_timeout(t_cpu_time *cpu_time) +{ + cpu_time->timer_state = CPU_TIMER_STATE_STOPPED; +} + + +/*! + * \brief Test if a timer is stopped. + * + * \param cpu_time: (input) internal information used by the timer API. + * + * \return TRUE if timer is stopped, otherwise FALSE. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ unsigned long cpu_is_timer_stopped(t_cpu_time *cpu_time) +{ + + if( cpu_time->timer_state==CPU_TIMER_STATE_STOPPED ) + return TRUE; + else + return FALSE; +} + + +/*! + * \brief Waits during at least the specified delay (in millisecond) before returning. + * + * \param delay: Number of millisecond to wait. + * \param fcpu_hz: CPU frequency in Hz. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void cpu_delay_ms(unsigned long delay, unsigned long fcpu_hz) +{ + t_cpu_time timer; + cpu_set_timeout( cpu_ms_2_cy(delay, fcpu_hz), &timer); + while( !cpu_is_timeout(&timer) ); +} + +/*! + * \brief Waits during at least the specified delay (in microsecond) before returning. + * + * \param delay: Number of microsecond to wait. + * \param fcpu_hz: CPU frequency in Hz. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void cpu_delay_us(unsigned long delay, unsigned long fcpu_hz) +{ + t_cpu_time timer; + cpu_set_timeout( cpu_us_2_cy(delay, fcpu_hz), &timer); + while( !cpu_is_timeout(&timer) ); +} + +/*! + * \brief Waits during at least the specified delay (in CPU cycles) before returning. + * + * \param delay: Number of CPU cycles to wait. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void cpu_delay_cy(unsigned long delay) +{ + t_cpu_time timer; + cpu_set_timeout( delay, &timer); + while( !cpu_is_timeout(&timer) ); +} + + +#define Get_sys_count() ( Get_system_register(AVR32_COUNT) ) +#define Set_sys_count(x) ( Set_system_register(AVR32_COUNT, (x)) ) +#define Get_sys_compare() ( Get_system_register(AVR32_COMPARE) ) +#define Set_sys_compare(x) ( Set_system_register(AVR32_COMPARE, (x)) ) + + +#endif // _CYCLE_COUNTER_H_ diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/EBI/SMC/smc.c b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/EBI/SMC/smc.c new file mode 100644 index 0000000..543fed6 --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/EBI/SMC/smc.c @@ -0,0 +1,995 @@ +/* This source file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file is prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief SMC on EBI driver for AVR32 UC3. + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices with a SMC module can be used. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + ******************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#include "compiler.h" +#include "preprocessor.h" +#include "gpio.h" +#include "smc.h" + +// Configure the SM Controller with SM setup and timing information for all chip select +#define SMC_CS_SETUP(ncs) { \ + U32 nwe_setup = ((NWE_SETUP * hsb_mhz_up + 999) / 1000); \ + U32 ncs_wr_setup = ((NCS_WR_SETUP * hsb_mhz_up + 999) / 1000); \ + U32 nrd_setup = ((NRD_SETUP * hsb_mhz_up + 999) / 1000); \ + U32 ncs_rd_setup = ((NCS_RD_SETUP * hsb_mhz_up + 999) / 1000); \ + U32 nwe_pulse = ((NWE_PULSE * hsb_mhz_up + 999) / 1000); \ + U32 ncs_wr_pulse = ((NCS_WR_PULSE * hsb_mhz_up + 999) / 1000); \ + U32 nrd_pulse = ((NRD_PULSE * hsb_mhz_up + 999) / 1000); \ + U32 ncs_rd_pulse = ((NCS_RD_PULSE * hsb_mhz_up + 999) / 1000); \ + U32 nwe_cycle = ((NWE_CYCLE * hsb_mhz_up + 999) / 1000); \ + U32 nrd_cycle = ((NRD_CYCLE * hsb_mhz_up + 999) / 1000); \ + \ + /* Some coherence checks... */ \ + /* Ensures CS is active during Rd or Wr */ \ + if( ncs_rd_setup + ncs_rd_pulse < nrd_setup + nrd_pulse ) \ + ncs_rd_pulse = nrd_setup + nrd_pulse - ncs_rd_setup; \ + if( ncs_wr_setup + ncs_wr_pulse < nwe_setup + nwe_pulse ) \ + ncs_wr_pulse = nwe_setup + nwe_pulse - ncs_wr_setup; \ + \ + /* ncs_hold = n_cycle - ncs_setup - ncs_pulse */ \ + /* n_hold = n_cycle - n_setup - n_pulse */ \ + /* */ \ + /* All holds parameters must be positive or null, so: */ \ + /* nwe_cycle shall be >= ncs_wr_setup + ncs_wr_pulse */ \ + if( nwe_cycle < ncs_wr_setup + ncs_wr_pulse ) \ + nwe_cycle = ncs_wr_setup + ncs_wr_pulse; \ + \ + /* nwe_cycle shall be >= nwe_setup + nwe_pulse */ \ + if( nwe_cycle < nwe_setup + nwe_pulse ) \ + nwe_cycle = nwe_setup + nwe_pulse; \ + \ + /* nrd_cycle shall be >= ncs_rd_setup + ncs_rd_pulse */ \ + if( nrd_cycle < ncs_rd_setup + ncs_rd_pulse ) \ + nrd_cycle = ncs_rd_setup + ncs_rd_pulse; \ + \ + /* nrd_cycle shall be >= nrd_setup + nrd_pulse */ \ + if( nrd_cycle < nrd_setup + nrd_pulse ) \ + nrd_cycle = nrd_setup + nrd_pulse; \ + \ + AVR32_SMC.cs[ncs].setup = (nwe_setup << AVR32_SMC_SETUP0_NWE_SETUP_OFFSET) | \ + (ncs_wr_setup << AVR32_SMC_SETUP0_NCS_WR_SETUP_OFFSET) | \ + (nrd_setup << AVR32_SMC_SETUP0_NRD_SETUP_OFFSET) | \ + (ncs_rd_setup << AVR32_SMC_SETUP0_NCS_RD_SETUP_OFFSET); \ + AVR32_SMC.cs[ncs].pulse = (nwe_pulse << AVR32_SMC_PULSE0_NWE_PULSE_OFFSET) | \ + (ncs_wr_pulse << AVR32_SMC_PULSE0_NCS_WR_PULSE_OFFSET) | \ + (nrd_pulse << AVR32_SMC_PULSE0_NRD_PULSE_OFFSET) | \ + (ncs_rd_pulse << AVR32_SMC_PULSE0_NCS_RD_PULSE_OFFSET); \ + AVR32_SMC.cs[ncs].cycle = (nwe_cycle << AVR32_SMC_CYCLE0_NWE_CYCLE_OFFSET) | \ + (nrd_cycle << AVR32_SMC_CYCLE0_NRD_CYCLE_OFFSET); \ + AVR32_SMC.cs[ncs].mode = (((NCS_CONTROLLED_READ) ? AVR32_SMC_MODE0_READ_MODE_NCS_CONTROLLED : \ + AVR32_SMC_MODE0_READ_MODE_NRD_CONTROLLED) << AVR32_SMC_MODE0_READ_MODE_OFFSET) | \ + + (((NCS_CONTROLLED_WRITE) ? AVR32_SMC_MODE0_WRITE_MODE_NCS_CONTROLLED : \ + AVR32_SMC_MODE0_WRITE_MODE_NWE_CONTROLLED) << AVR32_SMC_MODE0_WRITE_MODE_OFFSET) | \ + (NWAIT_MODE << AVR32_SMC_MODE0_EXNW_MODE_OFFSET) | \ + (((SMC_8_BIT_CHIPS) ? AVR32_SMC_MODE0_BAT_BYTE_WRITE : \ + AVR32_SMC_MODE0_BAT_BYTE_SELECT) << AVR32_SMC_MODE0_BAT_OFFSET) | \ + (((SMC_DBW <= 8 ) ? AVR32_SMC_MODE0_DBW_8_BITS : \ + (SMC_DBW <= 16) ? AVR32_SMC_MODE0_DBW_16_BITS : \ + AVR32_SMC_MODE0_DBW_32_BITS) << AVR32_SMC_MODE0_DBW_OFFSET) | \ + (TDF_CYCLES << AVR32_SMC_MODE0_TDF_CYCLES_OFFSET) | \ + (TDF_OPTIM << AVR32_SMC_MODE0_TDF_MODE_OFFSET) | \ + (PAGE_MODE << AVR32_SMC_MODE0_PMEN_OFFSET) | \ + (PAGE_SIZE << AVR32_SMC_MODE0_PS_OFFSET); \ + smc_tab_cs_size[ncs] = (U8)EXT_SM_SIZE; \ + } + +static U8 smc_tab_cs_size[6]; + +static void smc_enable_muxed_pins(void); + + +void smc_init(unsigned long hsb_hz) +{ + unsigned long hsb_mhz_up = (hsb_hz + 999999) / 1000000; + +//! Whether to use the NCS0 pin +#ifdef SMC_USE_NCS0 + #include SMC_COMPONENT_CS0 + + // Setup SMC for NCS0 + SMC_CS_SETUP(0) + + #ifdef SMC_DBW_GLOBAL + #if (SMC_DBW_GLOBAL < SMC_DBW) + #undef SMC_DBW_GLOBAL + #if (SMC_DBW == 8) + #define SMC_DBW_GLOBAL 8 + #elif (SMC_DBW == 16) + #define SMC_DBW_GLOBAL 16 + #elif (SMC_DBW == 32) + #define SMC_DBW_GLOBAL 32 + #else + #error error in SMC_DBW size + #endif + #endif + #else + #if (SMC_DBW == 8) + #define SMC_DBW_GLOBAL 8 + #elif (SMC_DBW == 16) + #define SMC_DBW_GLOBAL 16 + #elif (SMC_DBW == 32) + #define SMC_DBW_GLOBAL 32 + #else + #error error in SMC_DBW size + #endif + #endif + + #ifdef SMC_8_BIT_CHIPS_GLOBAL + #if (SMC_8_BIT_CHIPS_GLOBAL < SMC_8_BIT) + #undef SMC_8_BIT_CHIPS_GLOBAL + #if (SMC_8_BIT_CHIPS == TRUE) + #define SMC_8_BIT_CHIPS_GLOBAL TRUE + #elif (SMC_8_BIT_CHIPS == FALSE) + #define SMC_8_BIT_CHIPS_GLOBAL FALSE + #else + #error error in SMC_8_BIT_CHIPS size + #endif + #endif + #else + #if (SMC_8_BIT_CHIPS == TRUE) + #define SMC_8_BIT_CHIPS_GLOBAL TRUE + #elif (SMC_8_BIT_CHIPS == FALSE) + #define SMC_8_BIT_CHIPS_GLOBAL FALSE + #else + #error error in SMC_8_BIT_CHIPS size + #endif + #endif + + #ifdef NWAIT_MODE_GLOBAL + #if (NWAIT_MODE_GLOBAL < NWAIT_MODE) + #undef NWAIT_MODE_GLOBAL + #if (NWAIT_MODE == AVR32_SMC_EXNW_MODE_DISABLED) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_DISABLED + #elif (NWAIT_MODE == AVR32_SMC_EXNW_MODE_FROZEN) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_FROZEN + #else + #error error in NWAIT_MODE size + #endif + #endif + #else + #if (NWAIT_MODE == AVR32_SMC_EXNW_MODE_DISABLED) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_DISABLED + #elif (NWAIT_MODE == AVR32_SMC_EXNW_MODE_FROZEN) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_FROZEN + #else + #error error in NWAIT_MODE size + #endif + #endif + + #undef EXT_SM_SIZE + #undef SMC_DBW + #undef SMC_8_BIT_CHIPS + #undef NWE_SETUP + #undef NCS_WR_SETUP + #undef NRD_SETUP + #undef NCS_RD_SETUP + #undef NCS_WR_PULSE + #undef NWE_PULSE + #undef NCS_RD_PULSE + #undef NRD_PULSE + #undef NCS_WR_HOLD + #undef NWE_HOLD + #undef NWE_CYCLE + #undef NCS_RD_HOLD + #undef NRD_CYCLE + #undef TDF_CYCLES + #undef TDF_OPTIM + #undef PAGE_MODE + #undef PAGE_SIZE + #undef NCS_CONTROLLED_READ + #undef NCS_CONTROLLED_WRITE + #undef NWAIT_MODE +#endif + + +//! Whether to use the NCS1 pin +#ifdef SMC_USE_NCS1 + #include SMC_COMPONENT_CS1 + + // Enable SM mode for CS1 if necessary. + AVR32_HMATRIX.sfr[AVR32_EBI_HMATRIX_NR] &= ~(1 << AVR32_EBI_SDRAM_CS); + AVR32_HMATRIX.sfr[AVR32_EBI_HMATRIX_NR]; + + // Setup SMC for NCS1 + SMC_CS_SETUP(1) + + #ifdef SMC_DBW_GLOBAL + #if (SMC_DBW_GLOBAL < SMC_DBW) + #undef SMC_DBW_GLOBAL + #if (SMC_DBW == 8) + #define SMC_DBW_GLOBAL 8 + #elif (SMC_DBW == 16) + #define SMC_DBW_GLOBAL 16 + #elif (SMC_DBW == 32) + #define SMC_DBW_GLOBAL 32 + #else + #error error in SMC_DBW size + #endif + #endif + #else + #if (SMC_DBW == 8) + #define SMC_DBW_GLOBAL 8 + #elif (SMC_DBW == 16) + #define SMC_DBW_GLOBAL 16 + #elif (SMC_DBW == 32) + #define SMC_DBW_GLOBAL 32 + #else + #error error in SMC_DBW size + #endif + #endif + + #ifdef SMC_8_BIT_CHIPS_GLOBAL + #if (SMC_8_BIT_CHIPS_GLOBAL < SMC_8_BIT) + #undef SMC_8_BIT_CHIPS_GLOBAL + #if (SMC_8_BIT_CHIPS == TRUE) + #define SMC_8_BIT_CHIPS_GLOBAL TRUE + #elif (SMC_8_BIT_CHIPS == FALSE) + #define SMC_8_BIT_CHIPS_GLOBAL FALSE + #else + #error error in SMC_8_BIT_CHIPS size + #endif + #endif + #else + #if (SMC_8_BIT_CHIPS == TRUE) + #define SMC_8_BIT_CHIPS_GLOBAL TRUE + #elif (SMC_8_BIT_CHIPS == FALSE) + #define SMC_8_BIT_CHIPS_GLOBAL FALSE + #else + #error error in SMC_8_BIT_CHIPS size + #endif + #endif + + #ifdef NWAIT_MODE_GLOBAL + #if (NWAIT_MODE_GLOBAL < NWAIT_MODE) + #undef NWAIT_MODE_GLOBAL + #if (NWAIT_MODE == AVR32_SMC_EXNW_MODE_DISABLED) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_DISABLED + #elif (NWAIT_MODE == AVR32_SMC_EXNW_MODE_FROZEN) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_FROZEN + #else + #error error in NWAIT_MODE size + #endif + #endif + #else + #if (NWAIT_MODE == AVR32_SMC_EXNW_MODE_DISABLED) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_DISABLED + #elif (NWAIT_MODE == AVR32_SMC_EXNW_MODE_FROZEN) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_FROZEN + #else + #error error in NWAIT_MODE size + #endif + #endif + + #undef EXT_SM_SIZE + #undef SMC_DBW + #undef SMC_8_BIT_CHIPS + #undef NWE_SETUP + #undef NCS_WR_SETUP + #undef NRD_SETUP + #undef NCS_RD_SETUP + #undef NCS_WR_PULSE + #undef NWE_PULSE + #undef NCS_RD_PULSE + #undef NRD_PULSE + #undef NCS_WR_HOLD + #undef NWE_HOLD + #undef NWE_CYCLE + #undef NCS_RD_HOLD + #undef NRD_CYCLE + #undef TDF_CYCLES + #undef TDF_OPTIM + #undef PAGE_MODE + #undef PAGE_SIZE + #undef NCS_CONTROLLED_READ + #undef NCS_CONTROLLED_WRITE + #undef NWAIT_MODE +#endif + +//! Whether to use the NCS2 pin +#ifdef SMC_USE_NCS2 + #include SMC_COMPONENT_CS2 + + // Setup SMC for NCS2 + SMC_CS_SETUP(2) + + #ifdef SMC_DBW_GLOBAL + #if (SMC_DBW_GLOBAL < SMC_DBW) + #undef SMC_DBW_GLOBAL + #if (SMC_DBW == 8) + #define SMC_DBW_GLOBAL 8 + #elif (SMC_DBW == 16) + #define SMC_DBW_GLOBAL 16 + #elif (SMC_DBW == 32) + #define SMC_DBW_GLOBAL 32 + #else + #error error in SMC_DBW size + #endif + #endif + #else + #if (SMC_DBW == 8) + #define SMC_DBW_GLOBAL 8 + #elif (SMC_DBW == 16) + #define SMC_DBW_GLOBAL 16 + #elif (SMC_DBW == 32) + #define SMC_DBW_GLOBAL 32 + #else + #error error in SMC_DBW size + #endif + #endif + + #ifdef SMC_8_BIT_CHIPS_GLOBAL + #if (SMC_8_BIT_CHIPS_GLOBAL < SMC_8_BIT) + #undef SMC_8_BIT_CHIPS_GLOBAL + #if (SMC_8_BIT_CHIPS == TRUE) + #define SMC_8_BIT_CHIPS_GLOBAL TRUE + #elif (SMC_8_BIT_CHIPS == FALSE) + #define SMC_8_BIT_CHIPS_GLOBAL FALSE + #else + #error error in SMC_8_BIT_CHIPS size + #endif + #endif + #else + #if (SMC_8_BIT_CHIPS == TRUE) + #define SMC_8_BIT_CHIPS_GLOBAL TRUE + #elif (SMC_8_BIT_CHIPS == FALSE) + #define SMC_8_BIT_CHIPS_GLOBAL FALSE + #else + #error error in SMC_8_BIT_CHIPS size + #endif + #endif + + #ifdef NWAIT_MODE_GLOBAL + #if (NWAIT_MODE_GLOBAL < NWAIT_MODE) + #undef NWAIT_MODE_GLOBAL + #if (NWAIT_MODE == AVR32_SMC_EXNW_MODE_DISABLED) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_DISABLED + #elif (NWAIT_MODE == AVR32_SMC_EXNW_MODE_FROZEN) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_FROZEN + #else + #error error in NWAIT_MODE size + #endif + #endif + #else + #if (NWAIT_MODE == AVR32_SMC_EXNW_MODE_DISABLED) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_DISABLED + #elif (NWAIT_MODE == AVR32_SMC_EXNW_MODE_FROZEN) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_FROZEN + #else + #error error in NWAIT_MODE size + #endif + #endif + + + #undef EXT_SM_SIZE + #undef SMC_DBW + #undef SMC_8_BIT_CHIPS + #undef NWE_SETUP + #undef NCS_WR_SETUP + #undef NRD_SETUP + #undef NCS_RD_SETUP + #undef NCS_WR_PULSE + #undef NWE_PULSE + #undef NCS_RD_PULSE + #undef NRD_PULSE + #undef NCS_WR_HOLD + #undef NWE_HOLD + #undef NWE_CYCLE + #undef NCS_RD_HOLD + #undef NRD_CYCLE + #undef TDF_CYCLES + #undef TDF_OPTIM + #undef PAGE_MODE + #undef PAGE_SIZE + #undef NCS_CONTROLLED_READ + #undef NCS_CONTROLLED_WRITE + #undef NWAIT_MODE +#endif + +//! Whether to use the NCS3 pin +#ifdef SMC_USE_NCS3 + #include SMC_COMPONENT_CS3 + + // Setup SMC for NCS3 + SMC_CS_SETUP(3) + + #ifdef SMC_DBW_GLOBAL + #if (SMC_DBW_GLOBAL < SMC_DBW) + #undef SMC_DBW_GLOBAL + #if (SMC_DBW == 8) + #define SMC_DBW_GLOBAL 8 + #elif (SMC_DBW == 16) + #define SMC_DBW_GLOBAL 16 + #elif (SMC_DBW == 32) + #define SMC_DBW_GLOBAL 32 + #else + #error error in SMC_DBW size + #endif + #endif + #else + #if (SMC_DBW == 8) + #define SMC_DBW_GLOBAL 8 + #elif (SMC_DBW == 16) + #define SMC_DBW_GLOBAL 16 + #elif (SMC_DBW == 32) + #define SMC_DBW_GLOBAL 32 + #else + #error error in SMC_DBW size + #endif + #endif + + #ifdef SMC_8_BIT_CHIPS_GLOBAL + #if (SMC_8_BIT_CHIPS_GLOBAL < SMC_8_BIT) + #undef SMC_8_BIT_CHIPS_GLOBAL + #if (SMC_8_BIT_CHIPS == TRUE) + #define SMC_8_BIT_CHIPS_GLOBAL TRUE + #elif (SMC_8_BIT_CHIPS == FALSE) + #define SMC_8_BIT_CHIPS_GLOBAL FALSE + #else + #error error in SMC_8_BIT_CHIPS size + #endif + #endif + #else + #if (SMC_8_BIT_CHIPS == TRUE) + #define SMC_8_BIT_CHIPS_GLOBAL TRUE + #elif (SMC_8_BIT_CHIPS == FALSE) + #define SMC_8_BIT_CHIPS_GLOBAL FALSE + #else + #error error in SMC_8_BIT_CHIPS size + #endif + #endif + + #ifdef NWAIT_MODE_GLOBAL + #if (NWAIT_MODE_GLOBAL < NWAIT_MODE) + #undef NWAIT_MODE_GLOBAL + #if (NWAIT_MODE == AVR32_SMC_EXNW_MODE_DISABLED) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_DISABLED + #elif (NWAIT_MODE == AVR32_SMC_EXNW_MODE_FROZEN) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_FROZEN + #else + #error error in NWAIT_MODE size + #endif + #endif + #else + #if (NWAIT_MODE == AVR32_SMC_EXNW_MODE_DISABLED) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_DISABLED + #elif (NWAIT_MODE == AVR32_SMC_EXNW_MODE_FROZEN) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_FROZEN + #else + #error error in NWAIT_MODE size + #endif + #endif + + + #undef EXT_SM_SIZE + #undef SMC_DBW + #undef SMC_8_BIT_CHIPS + #undef NWE_SETUP + #undef NCS_WR_SETUP + #undef NRD_SETUP + #undef NCS_RD_SETUP + #undef NCS_WR_PULSE + #undef NWE_PULSE + #undef NCS_RD_PULSE + #undef NRD_PULSE + #undef NCS_WR_HOLD + #undef NWE_HOLD + #undef NWE_CYCLE + #undef NCS_RD_HOLD + #undef NRD_CYCLE + #undef TDF_CYCLES + #undef TDF_OPTIM + #undef PAGE_MODE + #undef PAGE_SIZE + #undef NCS_CONTROLLED_READ + #undef NCS_CONTROLLED_WRITE + #undef NWAIT_MODE +#endif + +//! Whether to use the NCS4 pin +#ifdef SMC_USE_NCS4 + #include SMC_COMPONENT_CS4 + + // Setup SMC for NCS4 + SMC_CS_SETUP(4) + + #ifdef SMC_DBW_GLOBAL + #if (SMC_DBW_GLOBAL < SMC_DBW) + #undef SMC_DBW_GLOBAL + #if (SMC_DBW == 8) + #define SMC_DBW_GLOBAL 8 + #elif (SMC_DBW == 16) + #define SMC_DBW_GLOBAL 16 + #elif (SMC_DBW == 32) + #define SMC_DBW_GLOBAL 32 + #else + #error error in SMC_DBW size + #endif + #endif + #else + #if (SMC_DBW == 8) + #define SMC_DBW_GLOBAL 8 + #elif (SMC_DBW == 16) + #define SMC_DBW_GLOBAL 16 + #elif (SMC_DBW == 32) + #define SMC_DBW_GLOBAL 32 + #else + #error error in SMC_DBW size + #endif + #endif + + #ifdef SMC_8_BIT_CHIPS_GLOBAL + #if (SMC_8_BIT_CHIPS_GLOBAL < SMC_8_BIT) + #undef SMC_8_BIT_CHIPS_GLOBAL + #if (SMC_8_BIT_CHIPS == TRUE) + #define SMC_8_BIT_CHIPS_GLOBAL TRUE + #elif (SMC_8_BIT_CHIPS == FALSE) + #define SMC_8_BIT_CHIPS_GLOBAL FALSE + #else + #error error in SMC_8_BIT_CHIPS size + #endif + #endif + #else + #if (SMC_8_BIT_CHIPS == TRUE) + #define SMC_8_BIT_CHIPS_GLOBAL TRUE + #elif (SMC_8_BIT_CHIPS == FALSE) + #define SMC_8_BIT_CHIPS_GLOBAL FALSE + #else + #error error in SMC_8_BIT_CHIPS size + #endif + #endif + + #ifdef NWAIT_MODE_GLOBAL + #if (NWAIT_MODE_GLOBAL < NWAIT_MODE) + #undef NWAIT_MODE_GLOBAL + #if (NWAIT_MODE == AVR32_SMC_EXNW_MODE_DISABLED) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_DISABLED + #elif (NWAIT_MODE == AVR32_SMC_EXNW_MODE_FROZEN) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_FROZEN + #else + #error error in NWAIT_MODE size + #endif + #endif + #else + #if (NWAIT_MODE == AVR32_SMC_EXNW_MODE_DISABLED) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_DISABLED + #elif (NWAIT_MODE == AVR32_SMC_EXNW_MODE_FROZEN) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_FROZEN + #else + #error error in NWAIT_MODE size + #endif + #endif + + + #undef EXT_SM_SIZE + #undef SMC_DBW + #undef SMC_8_BIT_CHIPS + #undef NWE_SETUP + #undef NCS_WR_SETUP + #undef NRD_SETUP + #undef NCS_RD_SETUP + #undef NCS_WR_PULSE + #undef NWE_PULSE + #undef NCS_RD_PULSE + #undef NRD_PULSE + #undef NCS_WR_HOLD + #undef NWE_HOLD + #undef NWE_CYCLE + #undef NCS_RD_HOLD + #undef NRD_CYCLE + #undef TDF_CYCLES + #undef TDF_OPTIM + #undef PAGE_MODE + #undef PAGE_SIZE + #undef NCS_CONTROLLED_READ + #undef NCS_CONTROLLED_WRITE + #undef NWAIT_MODE +#endif + +//! Whether to use the NCS5 pin +#ifdef SMC_USE_NCS5 + #include SMC_COMPONENT_CS5 + + // Setup SMC for NCS5 + SMC_CS_SETUP(5) + + #ifdef SMC_DBW_GLOBAL + #if (SMC_DBW_GLOBAL < SMC_DBW) + #undef SMC_DBW_GLOBAL + #if (SMC_DBW == 8) + #define SMC_DBW_GLOBAL 8 + #elif (SMC_DBW == 16) + #define SMC_DBW_GLOBAL 16 + #elif (SMC_DBW == 32) + #define SMC_DBW_GLOBAL 32 + #else + #error error in SMC_DBW size + #endif + #endif + #else + #if (SMC_DBW == 8) + #define SMC_DBW_GLOBAL 8 + #elif (SMC_DBW == 16) + #define SMC_DBW_GLOBAL 16 + #elif (SMC_DBW == 32) + #define SMC_DBW_GLOBAL 32 + #else + #error error in SMC_DBW size + #endif + #endif + + #ifdef SMC_8_BIT_CHIPS_GLOBAL + #if (SMC_8_BIT_CHIPS_GLOBAL < SMC_8_BIT) + #undef SMC_8_BIT_CHIPS_GLOBAL + #if (SMC_8_BIT_CHIPS == TRUE) + #define SMC_8_BIT_CHIPS_GLOBAL TRUE + #elif (SMC_8_BIT_CHIPS == FALSE) + #define SMC_8_BIT_CHIPS_GLOBAL FALSE + #else + #error error in SMC_8_BIT_CHIPS size + #endif + #endif + #else + #if (SMC_8_BIT_CHIPS == TRUE) + #define SMC_8_BIT_CHIPS_GLOBAL TRUE + #elif (SMC_8_BIT_CHIPS == FALSE) + #define SMC_8_BIT_CHIPS_GLOBAL FALSE + #else + #error error in SMC_8_BIT_CHIPS size + #endif + #endif + + #ifdef NWAIT_MODE_GLOBAL + #if (NWAIT_MODE_GLOBAL < NWAIT_MODE) + #undef NWAIT_MODE_GLOBAL + #if (NWAIT_MODE == AVR32_SMC_EXNW_MODE_DISABLED) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_DISABLED + #elif (NWAIT_MODE == AVR32_SMC_EXNW_MODE_FROZEN) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_FROZEN + #else + #error error in NWAIT_MODE size + #endif + #endif + #else + #if (NWAIT_MODE == AVR32_SMC_EXNW_MODE_DISABLED) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_DISABLED + #elif (NWAIT_MODE == AVR32_SMC_EXNW_MODE_FROZEN) + #define NWAIT_MODE_GLOBAL AVR32_SMC_EXNW_MODE_FROZEN + #else + #error error in NWAIT_MODE size + #endif + #endif + + + #undef EXT_SM_SIZE + #undef SMC_DBW + #undef SMC_8_BIT_CHIPS + #undef NWE_SETUP + #undef NCS_WR_SETUP + #undef NRD_SETUP + #undef NCS_RD_SETUP + #undef NCS_WR_PULSE + #undef NWE_PULSE + #undef NCS_RD_PULSE + #undef NRD_PULSE + #undef NCS_WR_HOLD + #undef NWE_HOLD + #undef NWE_CYCLE + #undef NCS_RD_HOLD + #undef NRD_CYCLE + #undef TDF_CYCLES + #undef TDF_OPTIM + #undef PAGE_MODE + #undef PAGE_SIZE + #undef NCS_CONTROLLED_READ + #undef NCS_CONTROLLED_WRITE + #undef NWAIT_MODE +#endif + // Put the multiplexed MCU pins used for the SM under control of the SMC. + smc_enable_muxed_pins(); +} + +/*! \brief Puts the multiplexed MCU pins used for the SMC + * + */ +static void smc_enable_muxed_pins(void) +{ + static const gpio_map_t SMC_EBI_GPIO_MAP = + { + // Enable data pins. +#ifdef EBI_DATA_0 + {ATPASTE2(EBI_DATA_0,_PIN),ATPASTE2(EBI_DATA_0,_FUNCTION)}, +#endif +#ifdef EBI_DATA_1 + {ATPASTE2(EBI_DATA_1,_PIN),ATPASTE2(EBI_DATA_1,_FUNCTION)}, +#endif +#ifdef EBI_DATA_2 + {ATPASTE2(EBI_DATA_2,_PIN),ATPASTE2(EBI_DATA_2,_FUNCTION)}, +#endif +#ifdef EBI_DATA_3 + {ATPASTE2(EBI_DATA_3,_PIN),ATPASTE2(EBI_DATA_3,_FUNCTION)}, +#endif +#ifdef EBI_DATA_4 + {ATPASTE2(EBI_DATA_4,_PIN),ATPASTE2(EBI_DATA_4,_FUNCTION)}, +#endif +#ifdef EBI_DATA_5 + {ATPASTE2(EBI_DATA_5,_PIN),ATPASTE2(EBI_DATA_5,_FUNCTION)}, +#endif +#ifdef EBI_DATA_6 + {ATPASTE2(EBI_DATA_6,_PIN),ATPASTE2(EBI_DATA_6,_FUNCTION)}, +#endif +#ifdef EBI_DATA_7 + {ATPASTE2(EBI_DATA_7,_PIN),ATPASTE2(EBI_DATA_7,_FUNCTION)}, +#endif +#ifdef EBI_DATA_8 + {ATPASTE2(EBI_DATA_8,_PIN),ATPASTE2(EBI_DATA_8,_FUNCTION)}, +#endif +#ifdef EBI_DATA_9 + {ATPASTE2(EBI_DATA_9,_PIN),ATPASTE2(EBI_DATA_9,_FUNCTION)}, +#endif +#ifdef EBI_DATA_10 + {ATPASTE2(EBI_DATA_10,_PIN),ATPASTE2(EBI_DATA_10,_FUNCTION)}, +#endif +#ifdef EBI_DATA_11 + {ATPASTE2(EBI_DATA_11,_PIN),ATPASTE2(EBI_DATA_11,_FUNCTION)}, +#endif +#ifdef EBI_DATA_12 + {ATPASTE2(EBI_DATA_12,_PIN),ATPASTE2(EBI_DATA_12,_FUNCTION)}, +#endif +#ifdef EBI_DATA_13 + {ATPASTE2(EBI_DATA_13,_PIN),ATPASTE2(EBI_DATA_13,_FUNCTION)}, +#endif +#ifdef EBI_DATA_14 + {ATPASTE2(EBI_DATA_14,_PIN),ATPASTE2(EBI_DATA_14,_FUNCTION)}, +#endif +#ifdef EBI_DATA_15 + {ATPASTE2(EBI_DATA_15,_PIN),ATPASTE2(EBI_DATA_15,_FUNCTION)}, +#endif +#ifdef EBI_DATA_16 + {ATPASTE2(EBI_DATA_16,_PIN),ATPASTE2(EBI_DATA_16,_FUNCTION)}, +#endif +#ifdef EBI_DATA_17 + {ATPASTE2(EBI_DATA_17,_PIN),ATPASTE2(EBI_DATA_17,_FUNCTION)}, +#endif +#ifdef EBI_DATA_18 + {ATPASTE2(EBI_DATA_18,_PIN),ATPASTE2(EBI_DATA_18,_FUNCTION)}, +#endif +#ifdef EBI_DATA_19 + {ATPASTE2(EBI_DATA_19,_PIN),ATPASTE2(EBI_DATA_19,_FUNCTION)}, +#endif +#ifdef EBI_DATA_20 + {ATPASTE2(EBI_DATA_20,_PIN),ATPASTE2(EBI_DATA_20,_FUNCTION)}, +#endif +#ifdef EBI_DATA_21 + {ATPASTE2(EBI_DATA_21,_PIN),ATPASTE2(EBI_DATA_21,_FUNCTION)}, +#endif +#ifdef EBI_DATA_22 + {ATPASTE2(EBI_DATA_22,_PIN),ATPASTE2(EBI_DATA_22,_FUNCTION)}, +#endif +#ifdef EBI_DATA_23 + {ATPASTE2(EBI_DATA_23,_PIN),ATPASTE2(EBI_DATA_23,_FUNCTION)}, +#endif +#ifdef EBI_DATA_24 + {ATPASTE2(EBI_DATA_24,_PIN),ATPASTE2(EBI_DATA_24,_FUNCTION)}, +#endif +#ifdef EBI_DATA_25 + {ATPASTE2(EBI_DATA_25,_PIN),ATPASTE2(EBI_DATA_25,_FUNCTION)}, +#endif +#ifdef EBI_DATA_26 + {ATPASTE2(EBI_DATA_26,_PIN),ATPASTE2(EBI_DATA_26,_FUNCTION)}, +#endif +#ifdef EBI_DATA_27 + {ATPASTE2(EBI_DATA_27,_PIN),ATPASTE2(EBI_DATA_27,_FUNCTION)}, +#endif +#ifdef EBI_DATA_28 + {ATPASTE2(EBI_DATA_28,_PIN),ATPASTE2(EBI_DATA_28,_FUNCTION)}, +#endif +#ifdef EBI_DATA_29 + {ATPASTE2(EBI_DATA_29,_PIN),ATPASTE2(EBI_DATA_29,_FUNCTION)}, +#endif +#ifdef EBI_DATA_30 + {ATPASTE2(EBI_DATA_30,_PIN),ATPASTE2(EBI_DATA_30,_FUNCTION)}, +#endif +#ifdef EBI_DATA_31 + {ATPASTE2(EBI_DATA_31,_PIN),ATPASTE2(EBI_DATA_31,_FUNCTION)}, +#endif + + // Enable address pins. +#if SMC_DBW_GLOBAL <= 8 +#ifdef EBI_ADDR_0 + {ATPASTE2(EBI_ADDR_0,_PIN),ATPASTE2(EBI_ADDR_0,_FUNCTION)}, +#endif +#endif +#if SMC_DBW_GLOBAL <= 16 +#ifdef EBI_ADDR_1 + {ATPASTE2(EBI_ADDR_1,_PIN),ATPASTE2(EBI_ADDR_1,_FUNCTION)}, +#endif +#endif + +#ifdef EBI_ADDR_2 + {ATPASTE2(EBI_ADDR_2,_PIN),ATPASTE2(EBI_ADDR_2,_FUNCTION)}, +#endif +#ifdef EBI_ADDR_3 + {ATPASTE2(EBI_ADDR_3,_PIN),ATPASTE2(EBI_ADDR_3,_FUNCTION)}, +#endif +#ifdef EBI_ADDR_4 + {ATPASTE2(EBI_ADDR_4,_PIN),ATPASTE2(EBI_ADDR_4,_FUNCTION)}, +#endif +#ifdef EBI_ADDR_5 + {ATPASTE2(EBI_ADDR_5,_PIN),ATPASTE2(EBI_ADDR_5,_FUNCTION)}, +#endif +#ifdef EBI_ADDR_6 + {ATPASTE2(EBI_ADDR_6,_PIN),ATPASTE2(EBI_ADDR_6,_FUNCTION)}, +#endif +#ifdef EBI_ADDR_7 + {ATPASTE2(EBI_ADDR_7,_PIN),ATPASTE2(EBI_ADDR_7,_FUNCTION)}, +#endif +#ifdef EBI_ADDR_8 + {ATPASTE2(EBI_ADDR_8,_PIN),ATPASTE2(EBI_ADDR_8,_FUNCTION)}, +#endif +#ifdef EBI_ADDR_9 + {ATPASTE2(EBI_ADDR_9,_PIN),ATPASTE2(EBI_ADDR_9,_FUNCTION)}, +#endif +#ifdef EBI_ADDR_10 + {ATPASTE2(EBI_ADDR_10,_PIN),ATPASTE2(EBI_ADDR_10,_FUNCTION)}, +#endif +#ifdef EBI_ADDR_11 + {ATPASTE2(EBI_ADDR_11,_PIN),ATPASTE2(EBI_ADDR_11,_FUNCTION)}, +#endif +#ifdef EBI_ADDR_12 + {ATPASTE2(EBI_ADDR_12,_PIN),ATPASTE2(EBI_ADDR_12,_FUNCTION)}, +#endif +#ifdef EBI_ADDR_13 + {ATPASTE2(EBI_ADDR_13,_PIN),ATPASTE2(EBI_ADDR_13,_FUNCTION)}, +#endif +#ifdef EBI_ADDR_14 + {ATPASTE2(EBI_ADDR_14,_PIN),ATPASTE2(EBI_ADDR_14,_FUNCTION)}, +#endif +#ifdef EBI_ADDR_15 + {ATPASTE2(EBI_ADDR_15,_PIN),ATPASTE2(EBI_ADDR_15,_FUNCTION)}, +#endif +#ifdef EBI_ADDR_16 + {ATPASTE2(EBI_ADDR_16,_PIN),ATPASTE2(EBI_ADDR_16,_FUNCTION)}, +#endif +#ifdef EBI_ADDR_17 + {ATPASTE2(EBI_ADDR_17,_PIN),ATPASTE2(EBI_ADDR_17,_FUNCTION)}, +#endif +#ifdef EBI_ADDR_18 + {ATPASTE2(EBI_ADDR_18,_PIN),ATPASTE2(EBI_ADDR_18,_FUNCTION)}, +#endif +#ifdef EBI_ADDR_19 + {ATPASTE2(EBI_ADDR_19,_PIN),ATPASTE2(EBI_ADDR_19,_FUNCTION)}, +#endif +#ifdef EBI_ADDR_20 + {ATPASTE2(EBI_ADDR_20,_PIN),ATPASTE2(EBI_ADDR_20,_FUNCTION)}, +#endif +#ifdef EBI_ADDR_21 + {ATPASTE2(EBI_ADDR_21,_PIN),ATPASTE2(EBI_ADDR_21,_FUNCTION)}, +#endif +#ifdef EBI_ADDR_22 + {ATPASTE2(EBI_ADDR_22,_PIN),ATPASTE2(EBI_ADDR_22,_FUNCTION)}, +#endif +#ifdef EBI_ADDR_23 + {ATPASTE2(EBI_ADDR_23,_PIN),ATPASTE2(EBI_ADDR_23,_FUNCTION)}, +#endif + +#if SMC_DBW_GLOBAL <= 8 + #undef SMC_8_BIT_CHIPS + #define SMC_8_BIT_CHIPS TRUE +#endif + + // Enable data mask pins. +#if !SMC_8_BIT_CHIPS_GLOBAL +#ifdef EBI_ADDR_0 + {ATPASTE2(EBI_ADDR_0,_PIN),ATPASTE2(EBI_ADDR_0,_FUNCTION)}, +#endif +#endif +#ifdef EBI_NWE0 + {ATPASTE2(EBI_NWE0,_PIN),ATPASTE2(EBI_NWE0,_FUNCTION)}, +#endif + +#if SMC_DBW_GLOBAL >= 16 + #ifdef EBI_NWE1 + {ATPASTE2(EBI_NWE1,_PIN),ATPASTE2(EBI_NWE1,_FUNCTION)}, + #endif + #if SMC_DBW_GLOBAL >= 32 + #ifdef EBI_ADDR_1 + {ATPASTE2(EBI_ADDR_1,_PIN),ATPASTE2(EBI_ADDR_1,_FUNCTION)}, + #endif + #ifdef EBI_NWE3 + {ATPASTE2(EBI_NWE3,_PIN),ATPASTE2(EBI_NWE3,_FUNCTION)}, + #endif + #endif +#endif + #ifdef EBI_NRD + {ATPASTE2(EBI_NRD,_PIN),ATPASTE2(EBI_NRD,_FUNCTION)}, + #endif + + // Enable control pins. +#if NWAIT_MODE_GLOBAL != AVR32_SMC_EXNW_MODE_DISABLED + #ifdef EBI_NWAIT + {ATPASTE2(EBI_NWAIT,_PIN),ATPASTE2(EBI_NWAIT,_FUNCTION)}, + #endif +#endif +#ifdef SMC_USE_NCS0 + #ifdef EBI_NCS_0 + {ATPASTE2(EBI_NCS_0,_PIN),ATPASTE2(EBI_NCS_0,_FUNCTION)}, + #endif +#endif +#ifdef SMC_USE_NCS1 + #ifdef EBI_NCS_1 + {ATPASTE2(EBI_NCS_1,_PIN),ATPASTE2(EBI_NCS_1,_FUNCTION)}, + #endif +#endif +#ifdef SMC_USE_NCS2 + #ifdef EBI_NCS_2 + {ATPASTE2(EBI_NCS_2,_PIN),ATPASTE2(EBI_NCS_2,_FUNCTION)}, + #endif +#endif +#ifdef SMC_USE_NCS3 + #ifdef EBI_NCS_3 + {ATPASTE2(EBI_NCS_3,_PIN),ATPASTE2(EBI_NCS_3,_FUNCTION)}, + #endif +#endif +#ifdef SMC_USE_NCS4 + #ifdef EBI_NCS_4 + {ATPASTE2(EBI_NCS_4,_PIN),ATPASTE2(EBI_NCS_4,_FUNCTION)}, + #endif +#endif +#ifdef SMC_USE_NCS5 + #ifdef EBI_NCS_5 + {ATPASTE2(EBI_NCS_5,_PIN),ATPASTE2(EBI_NCS_5,_FUNCTION)}, + #endif +#endif + }; + + gpio_enable_module(SMC_EBI_GPIO_MAP, sizeof(SMC_EBI_GPIO_MAP) / sizeof(SMC_EBI_GPIO_MAP[0])); +} + +unsigned char smc_get_cs_size(unsigned char cs) +{ + return smc_tab_cs_size[cs]; +} diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/EBI/SMC/smc.h b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/EBI/SMC/smc.h new file mode 100644 index 0000000..c3bdf43 --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/EBI/SMC/smc.h @@ -0,0 +1,68 @@ +/* This header file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file is prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief SMC on EBI driver for AVR32 UC3. + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices with a SMC module can be used. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + ******************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#ifndef _SMC_H_ +#define _SMC_H_ + +#include <avr32/io.h> + +#include "compiler.h" +#include "conf_ebi.h" + +/*! \brief Initializes the AVR32 SMC module and the connected SRAM(s). + * \param hsb_hz HSB frequency in Hz (the HSB frequency is applied to the SMC). + * \note Each access to the SMC address space validates the mode of the SMC + * and generates an operation corresponding to this mode. + */ +extern void smc_init(unsigned long hsb_hz); + +/*! \brief Return the size of the peripheral connected . + * \param cs The chip select value + */ +extern unsigned char smc_get_cs_size(unsigned char cs); + +#endif // _SMC_H_ diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/EIC/eic.c b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/EIC/eic.c new file mode 100644 index 0000000..1008c94 --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/EIC/eic.c @@ -0,0 +1,183 @@ +/* This source file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file is prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief EIC driver for AVR32 UC3. + * + * AVR32 External Interrupt Controller driver module. + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices with an EIC module can be used. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + ******************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#include <avr32/io.h> +#include "compiler.h" +#include "preprocessor.h" +#include "eic.h" + + + +void eic_init(volatile avr32_eic_t *eic, const eic_options_t *opt, unsigned int nb_lines) +{ + int i; + for (i = 0; i < nb_lines; i++) + { + // Set up mode level + eic->mode = (opt[i].eic_mode == 1) ? (eic->mode | (1 << opt[i].eic_line)) : (eic->mode & ~(1 << opt[i].eic_line)); + // Set up edge type + eic->edge = (opt[i].eic_edge == 1) ? (eic->edge | (1 << opt[i].eic_line)) : (eic->edge & ~(1 << opt[i].eic_line)); + // Set up level + eic->level = (opt[i].eic_level == 1) ? (eic->level | (1 << opt[i].eic_line)) : (eic->level & ~(1 << opt[i].eic_line)); + // Set up if filter is used + eic->filter = (opt[i].eic_filter == 1) ? (eic->filter | (1 << opt[i].eic_line)) : (eic->filter & ~(1 << opt[i].eic_line)); + // Set up which mode is used : asynchronous mode/ synchronous mode + eic->async = (opt[i].eic_async == 1) ? (eic->async | (1 << opt[i].eic_line)) : (eic->async & ~(1 << opt[i].eic_line)); + } +} + +void eic_enable_lines(volatile avr32_eic_t *eic, unsigned int mask_lines) +{ + eic->en = mask_lines; +} + +void eic_enable_line(volatile avr32_eic_t *eic, unsigned int line_number) +{ + // Enable line line_number + eic->en = 1 << line_number; +} + +void eic_disable_lines(volatile avr32_eic_t *eic, unsigned int mask_lines) +{ + eic->dis = mask_lines; +} + +void eic_disable_line(volatile avr32_eic_t *eic, unsigned int line_number) +{ + // Disable line line_number + eic->dis = 1 << line_number; +} + +Bool eic_is_line_enabled(volatile avr32_eic_t *eic, unsigned int line_number) +{ + return (eic->ctrl & (1 << line_number)) != 0; +} + +void eic_enable_interrupt_lines(volatile avr32_eic_t *eic, unsigned int mask_lines) +{ + eic->ier = mask_lines; +} + +void eic_enable_interrupt_line(volatile avr32_eic_t *eic, unsigned int line_number) +{ + // Enable line line_number + eic->ier = 1 << line_number; +} + +void eic_disable_interrupt_lines(volatile avr32_eic_t *eic, unsigned int mask_lines) +{ + Bool global_interrupt_enabled = Is_global_interrupt_enabled(); + + if (global_interrupt_enabled) Disable_global_interrupt(); + eic->idr = mask_lines; + eic->imr; + if (global_interrupt_enabled) Enable_global_interrupt(); +} + +void eic_disable_interrupt_line(volatile avr32_eic_t *eic, unsigned int line_number) +{ + Bool global_interrupt_enabled = Is_global_interrupt_enabled(); + + // Disable line line_number + if (global_interrupt_enabled) Disable_global_interrupt(); + eic->idr = 1 << line_number; + eic->imr; + if (global_interrupt_enabled) Enable_global_interrupt(); +} + +Bool eic_is_interrupt_line_enabled(volatile avr32_eic_t *eic, unsigned int line_number) +{ + return (eic->imr & (1 << line_number)) != 0; +} + +void eic_clear_interrupt_lines(volatile avr32_eic_t *eic, unsigned int mask_lines) +{ + Bool global_interrupt_enabled = Is_global_interrupt_enabled(); + + if (global_interrupt_enabled) Disable_global_interrupt(); + eic->icr = mask_lines; + eic->isr; + if (global_interrupt_enabled) Enable_global_interrupt(); +} + +void eic_clear_interrupt_line(volatile avr32_eic_t *eic, unsigned int line_number) +{ + Bool global_interrupt_enabled = Is_global_interrupt_enabled(); + + // Clear line line_number + if (global_interrupt_enabled) Disable_global_interrupt(); + eic->icr = 1 << line_number; + eic->isr; + if (global_interrupt_enabled) Enable_global_interrupt(); +} + +Bool eic_is_interrupt_line_pending(volatile avr32_eic_t *eic, unsigned int line_number) +{ + return (eic->isr & (1 << line_number)) != 0; +} + +#if !defined(AVR32_EIC_301_H_INCLUDED) +void eic_enable_interrupt_scan(volatile avr32_eic_t *eic,unsigned int presc) +{ + // Enable SCAN function with PRESC value + eic->scan |= (presc << AVR32_EIC_SCAN_PRESC_OFFSET) | (1 << AVR32_EIC_SCAN_EN_OFFSET); +} + +void eic_disable_interrupt_scan(volatile avr32_eic_t *eic) +{ + // Disable SCAN function + eic->scan = 0 << AVR32_EIC_SCAN_EN_OFFSET; +} + +unsigned long eic_get_interrupt_pad_scan(volatile avr32_eic_t *eic) +{ + // Return pad number that causes interrupt + return(eic->scan>>AVR32_EIC_SCAN_PIN_OFFSET); +} +#endif
\ No newline at end of file diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/EIC/eic.h b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/EIC/eic.h new file mode 100644 index 0000000..32641b7 --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/EIC/eic.h @@ -0,0 +1,275 @@ +/* This header file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file is prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief EIC driver for AVR32 UC3. + * + * AVR32 External Interrupt Controller driver module. + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices with an EIC module can be used. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + ******************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#ifndef _EIC_H_ +#define _EIC_H_ + +#include "compiler.h" + +/*! \name External Interrupt lines + */ +//! @{ +#if (UC3A || UC3B) +#define EXT_INT0 AVR32_EIC_INT0 //!< Line 0 +#define EXT_INT1 AVR32_EIC_INT1 //!< Line 1 +#define EXT_INT2 AVR32_EIC_INT2 //!< Line 2 +#define EXT_INT3 AVR32_EIC_INT3 //!< Line 3 +#define EXT_INT4 AVR32_EIC_INT4 //!< Line 4 +#define EXT_INT5 AVR32_EIC_INT5 //!< Line 5 +#define EXT_INT6 AVR32_EIC_INT6 //!< Line 6 +#define EXT_INT7 AVR32_EIC_INT7 //!< Line 7 +#define EXT_NMI AVR32_EIC_NMI //!< Line 8 +#else +#define EXT_INT0 AVR32_EIC_INT1 //!< Line 0 +#define EXT_INT1 AVR32_EIC_INT2 //!< Line 1 +#define EXT_INT2 AVR32_EIC_INT3 //!< Line 2 +#define EXT_INT3 AVR32_EIC_INT4 //!< Line 3 +#define EXT_INT4 AVR32_EIC_INT5 //!< Line 4 +#define EXT_INT5 AVR32_EIC_INT6 //!< Line 5 +#define EXT_INT6 AVR32_EIC_INT7 //!< Line 6 +#define EXT_INT7 AVR32_EIC_INT8 //!< Line 7 +#define EXT_NMI AVR32_EIC_NMI //!< Line 8 + +#endif + +//! @} + +/*! \name Mode Trigger Options + */ +//! @{ +#define EIC_MODE_EDGE_TRIGGERED AVR32_EIC_EDGE_IRQ //!< +#define EIC_MODE_LEVEL_TRIGGERED AVR32_EIC_LEVEL_IRQ //!< +//! @} + +/*! \name Edge level Options + */ +//! @{ +#define EIC_EDGE_FALLING_EDGE AVR32_EIC_FALLING_EDGE //!< +#define EIC_EDGE_RISING_EDGE AVR32_EIC_RISING_EDGE //!< +//! @} + +/*! \name Level Options + */ +//! @{ +#define EIC_LEVEL_LOW_LEVEL AVR32_EIC_LOW_LEVEL //!< +#define EIC_LEVEL_HIGH_LEVEL AVR32_EIC_HIGH_LEVEL //!< +//! @} + +/*! \name Filter Options + */ +//! @{ +#define EIC_FILTER_ENABLED AVR32_EIC_FILTER_ON //!< +#define EIC_FILTER_DISABLED AVR32_EIC_FILTER_OFF //!< +//! @} + +/*! \name Synch Mode Options + */ +//! @{ +#define EIC_SYNCH_MODE AVR32_EIC_SYNC //!< +#define EIC_ASYNCH_MODE AVR32_EIC_USE_ASYNC //!< +//! @} + +//! Configuration parameters of the EIC module. +typedef struct +{ + //!Line + unsigned char eic_line; + + //! Mode : EDGE_LEVEL or TRIGGER_LEVEL + unsigned char eic_mode; + + //! Edge : FALLING_EDGE or RISING_EDGE + unsigned char eic_edge; + + //! Level : LOW_LEVEL or HIGH_LEVEL + unsigned char eic_level; + + //! Filter: NOT_FILTERED or FILTERED + unsigned char eic_filter; + + //! Async: SYNC mode or ASYNC + unsigned char eic_async; + +} eic_options_t; + + +/*! \brief Init the EIC driver. + * + * \param eic Base address of the EIC module + * \param opt Configuration parameters of the EIC module (see \ref eic_options_t) + * \param nb_lines Number of lines to consider, equal to size of opt buffer + */ +extern void eic_init(volatile avr32_eic_t *eic, const eic_options_t *opt, unsigned int nb_lines); + +/*! \brief Enable the EIC driver. + * + * \param eic Base address of the EIC module + * \param mask_lines Mask for current selected lines + */ +extern void eic_enable_lines(volatile avr32_eic_t *eic, unsigned int mask_lines); + +/*! \brief Enable the EIC driver. + * + * \param eic Base address of the EIC module + * \param line_number Line number to enable + */ +extern void eic_enable_line(volatile avr32_eic_t *eic, unsigned int line_number); + +/*! \brief Disable the EIC driver. + * + * \param eic Base address of the EIC module + * \param mask_lines Mask for current selected lines + */ +extern void eic_disable_lines(volatile avr32_eic_t *eic, unsigned int mask_lines); + +/*! \brief Disable the EIC driver. + * + * \param eic Base address of the EIC module + * \param line_number Line number to disable + */ +extern void eic_disable_line(volatile avr32_eic_t *eic, unsigned int line_number); + +/*! \brief Tells whether an EIC line is enabled. + * + * \param eic Base address of the EIC module + * \param line_number Line number to test + * + * \return Whether an EIC line is enabled. + */ +extern Bool eic_is_line_enabled(volatile avr32_eic_t *eic, unsigned int line_number); + +/*! \name Interrupt Control Functions + */ +//! @{ + +/*! \brief Enable the interrupt feature of the EIC. + * + * \param eic Base address of the EIC (i.e. &AVR32_EIC). + * \param mask_lines Mask for current selected lines + */ +extern void eic_enable_interrupt_lines(volatile avr32_eic_t *eic, unsigned int mask_lines); + +/*! \brief Enable the interrupt feature of the EIC. + * + * \param eic Base address of the EIC (i.e. &AVR32_EIC). + * \param line_number Line number to enable + */ +extern void eic_enable_interrupt_line(volatile avr32_eic_t *eic, unsigned int line_number); + +/*! \brief Disable the interrupt feature of the EIC. + * + * \param eic Base address of the EIC (i.e. &AVR32_EIC). + * \param mask_lines Mask for current selected lines + */ +extern void eic_disable_interrupt_lines(volatile avr32_eic_t *eic, unsigned int mask_lines); + +/*! \brief Disable the interrupt feature of the EIC. + * + * \param eic Base address of the EIC (i.e. &AVR32_EIC). + * \param line_number Line number to disable + */ +extern void eic_disable_interrupt_line(volatile avr32_eic_t *eic, unsigned int line_number); + +/*! \brief Tells whether an EIC interrupt line is enabled. + * + * \param eic Base address of the EIC module + * \param line_number Line number to test + * + * \return Whether an EIC interrupt line is enabled. + */ +extern Bool eic_is_interrupt_line_enabled(volatile avr32_eic_t *eic, unsigned int line_number); + +/*! \brief Clear the interrupt flag. + * Call this function once you've handled the interrupt. + * + * \param eic Base address of the EIC (i.e. &AVR32_EIC). + * \param mask_lines Mask for current selected lines + */ +extern void eic_clear_interrupt_lines(volatile avr32_eic_t *eic, unsigned int mask_lines); + +/*! \brief Clear the interrupt flag. + * Call this function once you've handled the interrupt. + * + * \param eic Base address of the EIC (i.e. &AVR32_EIC). + * \param line_number Line number to clear + */ +extern void eic_clear_interrupt_line(volatile avr32_eic_t *eic, unsigned int line_number); + +/*! \brief Tells whether an EIC interrupt line is pending. + * + * \param eic Base address of the EIC module + * \param line_number Line number to test + * + * \return Whether an EIC interrupt line is pending. + */ +extern Bool eic_is_interrupt_line_pending(volatile avr32_eic_t *eic, unsigned int line_number); + +/*! \brief Enable the interrupt scan feature of the EIC. + * + * \param eic Base address of the EIC (i.e. &AVR32_EIC). + * \param presc Prescale select for the keypad scan rate in the range [0,31]. + */ +extern void eic_enable_interrupt_scan(volatile avr32_eic_t *eic, unsigned int presc); + +/*! \brief Disable the interrupt scan feature of the EIC. + * + * \param eic Base address of the EIC (i.e. &AVR32_EIC). + */ +extern void eic_disable_interrupt_scan(volatile avr32_eic_t *eic); + +/*! \brief Return scan pad number that causes interrupt. + * + * \param eic Base address of the EIC (i.e. &AVR32_EIC). + */ +extern unsigned long eic_get_interrupt_pad_scan(volatile avr32_eic_t *eic); + +//! @} + + +#endif // _EIC_H_ diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/FLASHC/flashc.c b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/FLASHC/flashc.c new file mode 100644 index 0000000..2eee15c --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/FLASHC/flashc.c @@ -0,0 +1,1117 @@ +/* This source file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file is prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief FLASHC driver for AVR32 UC3. + * + * AVR32 Flash Controller driver module. + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices with a FLASHC module can be used. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + ******************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#include <avr32/io.h> +#include <stddef.h> +#include "compiler.h" +#include "flashc.h" + + +/*! \name FLASHC Writable Bit-Field Registers + */ +//! @{ + +typedef union +{ + unsigned long fcr; + avr32_flashc_fcr_t FCR; +} u_avr32_flashc_fcr_t; + +typedef union +{ + unsigned long fcmd; + avr32_flashc_fcmd_t FCMD; +} u_avr32_flashc_fcmd_t; + +//! @} + + +/*! \name Flash Properties + */ +//! @{ + + +unsigned int flashc_get_flash_size(void) +{ +#if (defined AVR32_FLASHC_300_H_INCLUDED) + static const unsigned int FLASH_SIZE[1 << AVR32_FLASHC_PR_FSZ_SIZE] = + { + 32 << 10, + 64 << 10, + 128 << 10, + 256 << 10, + 384 << 10, + 512 << 10, + 768 << 10, + 1024 << 10 + }; + return FLASH_SIZE[(AVR32_FLASHC.pr & AVR32_FLASHC_PR_FSZ_MASK) >> AVR32_FLASHC_PR_FSZ_OFFSET]; +#else + static const unsigned int FLASH_SIZE[1 << AVR32_FLASHC_FSR_FSZ_SIZE] = + { + 32 << 10, + 64 << 10, + 128 << 10, + 256 << 10, + 384 << 10, + 512 << 10, + 768 << 10, + 1024 << 10 + }; + return FLASH_SIZE[(AVR32_FLASHC.fsr & AVR32_FLASHC_FSR_FSZ_MASK) >> AVR32_FLASHC_FSR_FSZ_OFFSET]; +#endif +} + + +unsigned int flashc_get_page_count(void) +{ + return flashc_get_flash_size() / AVR32_FLASHC_PAGE_SIZE; +} + + +unsigned int flashc_get_page_count_per_region(void) +{ + return flashc_get_page_count() / AVR32_FLASHC_REGIONS; +} + + +unsigned int flashc_get_page_region(int page_number) +{ + return ((page_number >= 0) ? page_number : flashc_get_page_number()) / flashc_get_page_count_per_region(); +} + + +unsigned int flashc_get_region_first_page_number(unsigned int region) +{ + return region * flashc_get_page_count_per_region(); +} + + +//! @} + + +/*! \name FLASHC Control + */ +//! @{ + + +unsigned int flashc_get_wait_state(void) +{ + return (AVR32_FLASHC.fcr & AVR32_FLASHC_FCR_FWS_MASK) >> AVR32_FLASHC_FCR_FWS_OFFSET; +} + + +void flashc_set_wait_state(unsigned int wait_state) +{ + u_avr32_flashc_fcr_t u_avr32_flashc_fcr = {AVR32_FLASHC.fcr}; + u_avr32_flashc_fcr.FCR.fws = wait_state; + AVR32_FLASHC.fcr = u_avr32_flashc_fcr.fcr; +} + + +Bool flashc_is_ready_int_enabled(void) +{ + return ((AVR32_FLASHC.fcr & AVR32_FLASHC_FCR_FRDY_MASK) != 0); +} + + +void flashc_enable_ready_int(Bool enable) +{ + u_avr32_flashc_fcr_t u_avr32_flashc_fcr = {AVR32_FLASHC.fcr}; + u_avr32_flashc_fcr.FCR.frdy = (enable != FALSE); + AVR32_FLASHC.fcr = u_avr32_flashc_fcr.fcr; +} + + +Bool flashc_is_lock_error_int_enabled(void) +{ + return ((AVR32_FLASHC.fcr & AVR32_FLASHC_FCR_LOCKE_MASK) != 0); +} + + +void flashc_enable_lock_error_int(Bool enable) +{ + u_avr32_flashc_fcr_t u_avr32_flashc_fcr = {AVR32_FLASHC.fcr}; + u_avr32_flashc_fcr.FCR.locke = (enable != FALSE); + AVR32_FLASHC.fcr = u_avr32_flashc_fcr.fcr; +} + + +Bool flashc_is_prog_error_int_enabled(void) +{ + return ((AVR32_FLASHC.fcr & AVR32_FLASHC_FCR_PROGE_MASK) != 0); +} + + +void flashc_enable_prog_error_int(Bool enable) +{ + u_avr32_flashc_fcr_t u_avr32_flashc_fcr = {AVR32_FLASHC.fcr}; + u_avr32_flashc_fcr.FCR.proge = (enable != FALSE); + AVR32_FLASHC.fcr = u_avr32_flashc_fcr.fcr; +} + + +//! @} + + +/*! \name FLASHC Status + */ +//! @{ + + +Bool flashc_is_ready(void) +{ + return ((AVR32_FLASHC.fsr & AVR32_FLASHC_FSR_FRDY_MASK) != 0); +} + + +void flashc_default_wait_until_ready(void) +{ + while (!flashc_is_ready()); +} + + +void (*volatile flashc_wait_until_ready)(void) = flashc_default_wait_until_ready; + + +/*! \brief Gets the error status of the FLASHC. + * + * \return The error status of the FLASHC built up from + * \c AVR32_FLASHC_FSR_LOCKE_MASK and \c AVR32_FLASHC_FSR_PROGE_MASK. + * + * \warning This hardware error status is cleared by all functions reading the + * Flash Status Register (FSR). This function is therefore not part of + * the driver's API which instead presents \ref flashc_is_lock_error + * and \ref flashc_is_programming_error. + */ +static unsigned int flashc_get_error_status(void) +{ + return AVR32_FLASHC.fsr & (AVR32_FLASHC_FSR_LOCKE_MASK | + AVR32_FLASHC_FSR_PROGE_MASK); +} + + +//! Sticky error status of the FLASHC. +//! This variable is updated by functions that issue FLASHC commands. It +//! contains the cumulated FLASHC error status of all the FLASHC commands issued +//! by a function. +static unsigned int flashc_error_status = 0; + + +Bool flashc_is_lock_error(void) +{ + return ((flashc_error_status & AVR32_FLASHC_FSR_LOCKE_MASK) != 0); +} + + +Bool flashc_is_programming_error(void) +{ + return ((flashc_error_status & AVR32_FLASHC_FSR_PROGE_MASK) != 0); +} + + +//! @} + + +/*! \name FLASHC Command Control + */ +//! @{ + + +unsigned int flashc_get_command(void) +{ + return (AVR32_FLASHC.fcmd & AVR32_FLASHC_FCMD_CMD_MASK) >> AVR32_FLASHC_FCMD_CMD_OFFSET; +} + + +unsigned int flashc_get_page_number(void) +{ + return (AVR32_FLASHC.fcmd & AVR32_FLASHC_FCMD_PAGEN_MASK) >> AVR32_FLASHC_FCMD_PAGEN_OFFSET; +} + + +void flashc_issue_command(unsigned int command, int page_number) +{ + u_avr32_flashc_fcmd_t u_avr32_flashc_fcmd; + flashc_wait_until_ready(); + u_avr32_flashc_fcmd.fcmd = AVR32_FLASHC.fcmd; + u_avr32_flashc_fcmd.FCMD.cmd = command; + if (page_number >= 0) u_avr32_flashc_fcmd.FCMD.pagen = page_number; + u_avr32_flashc_fcmd.FCMD.key = AVR32_FLASHC_FCMD_KEY_KEY; + AVR32_FLASHC.fcmd = u_avr32_flashc_fcmd.fcmd; + flashc_error_status = flashc_get_error_status(); + flashc_wait_until_ready(); +} + + +//! @} + + +/*! \name FLASHC Global Commands + */ +//! @{ + + +void flashc_no_operation(void) +{ + flashc_issue_command(AVR32_FLASHC_FCMD_CMD_NOP, -1); +} + + +void flashc_erase_all(void) +{ + flashc_issue_command(AVR32_FLASHC_FCMD_CMD_EA, -1); +} + + +//! @} + + +/*! \name FLASHC Protection Mechanisms + */ +//! @{ + + +Bool flashc_is_security_bit_active(void) +{ + return ((AVR32_FLASHC.fsr & AVR32_FLASHC_FSR_SECURITY_MASK) != 0); +} + + +void flashc_activate_security_bit(void) +{ + flashc_issue_command(AVR32_FLASHC_FCMD_CMD_SSB, -1); +} + + +unsigned int flashc_get_bootloader_protected_size(void) +{ + unsigned int bootprot = (1 << AVR32_FLASHC_FGPFRLO_BOOTPROT_SIZE) - 1 - + flashc_read_gp_fuse_bitfield(AVR32_FLASHC_FGPFRLO_BOOTPROT_OFFSET, + AVR32_FLASHC_FGPFRLO_BOOTPROT_SIZE); + return (bootprot) ? AVR32_FLASHC_PAGE_SIZE << bootprot : 0; +} + + +unsigned int flashc_set_bootloader_protected_size(unsigned int bootprot_size) +{ + flashc_set_gp_fuse_bitfield(AVR32_FLASHC_FGPFRLO_BOOTPROT_OFFSET, + AVR32_FLASHC_FGPFRLO_BOOTPROT_SIZE, + (1 << AVR32_FLASHC_FGPFRLO_BOOTPROT_SIZE) - 1 - + ((bootprot_size) ? + 32 - clz((((min(max(bootprot_size, AVR32_FLASHC_PAGE_SIZE << 1), + AVR32_FLASHC_PAGE_SIZE << + ((1 << AVR32_FLASHC_FGPFRLO_BOOTPROT_SIZE) - 1)) + + AVR32_FLASHC_PAGE_SIZE - 1) / + AVR32_FLASHC_PAGE_SIZE) << 1) - 1) - 1 : + 0)); + return flashc_get_bootloader_protected_size(); +} + + +Bool flashc_is_external_privileged_fetch_locked(void) +{ + return (!flashc_read_gp_fuse_bit(AVR32_FLASHC_FGPFRLO_EPFL_OFFSET)); +} + + +void flashc_lock_external_privileged_fetch(Bool lock) +{ + flashc_set_gp_fuse_bit(AVR32_FLASHC_FGPFRLO_EPFL_OFFSET, !lock); +} + + +Bool flashc_is_page_region_locked(int page_number) +{ + return flashc_is_region_locked(flashc_get_page_region(page_number)); +} + + +Bool flashc_is_region_locked(unsigned int region) +{ + return ((AVR32_FLASHC.fsr & AVR32_FLASHC_FSR_LOCK0_MASK << (region & (AVR32_FLASHC_REGIONS - 1))) != 0); +} + + +void flashc_lock_page_region(int page_number, Bool lock) +{ + flashc_issue_command((lock) ? AVR32_FLASHC_FCMD_CMD_LP : AVR32_FLASHC_FCMD_CMD_UP, page_number); +} + + +void flashc_lock_region(unsigned int region, Bool lock) +{ + flashc_lock_page_region(flashc_get_region_first_page_number(region), lock); +} + + +void flashc_lock_all_regions(Bool lock) +{ + unsigned int error_status = 0; + unsigned int region = AVR32_FLASHC_REGIONS; + while (region) + { + flashc_lock_region(--region, lock); + error_status |= flashc_error_status; + } + flashc_error_status = error_status; +} + + +//! @} + + +/*! \name Access to General-Purpose Fuses + */ +//! @{ + + +Bool flashc_read_gp_fuse_bit(unsigned int gp_fuse_bit) +{ + return ((flashc_read_all_gp_fuses() & 1ULL << (gp_fuse_bit & 0x3F)) != 0); +} + + +U64 flashc_read_gp_fuse_bitfield(unsigned int pos, unsigned int width) +{ + return flashc_read_all_gp_fuses() >> (pos & 0x3F) & ((1ULL << min(width, 64)) - 1); +} + + +U8 flashc_read_gp_fuse_byte(unsigned int gp_fuse_byte) +{ + return flashc_read_all_gp_fuses() >> ((gp_fuse_byte & 0x07) << 3); +} + + +U64 flashc_read_all_gp_fuses(void) +{ + return AVR32_FLASHC.fgpfrlo | (U64)AVR32_FLASHC.fgpfrhi << 32; +} + + +Bool flashc_erase_gp_fuse_bit(unsigned int gp_fuse_bit, Bool check) +{ + flashc_issue_command(AVR32_FLASHC_FCMD_CMD_EGPB, gp_fuse_bit & 0x3F); + return (check) ? flashc_read_gp_fuse_bit(gp_fuse_bit) : TRUE; +} + + +Bool flashc_erase_gp_fuse_bitfield(unsigned int pos, unsigned int width, Bool check) +{ + unsigned int error_status = 0; + unsigned int gp_fuse_bit; + pos &= 0x3F; + width = min(width, 64); + for (gp_fuse_bit = pos; gp_fuse_bit < pos + width; gp_fuse_bit++) + { + flashc_erase_gp_fuse_bit(gp_fuse_bit, FALSE); + error_status |= flashc_error_status; + } + flashc_error_status = error_status; + return (check) ? (flashc_read_gp_fuse_bitfield(pos, width) == (1ULL << width) - 1) : TRUE; +} + + +Bool flashc_erase_gp_fuse_byte(unsigned int gp_fuse_byte, Bool check) +{ + unsigned int error_status; + unsigned int current_gp_fuse_byte; + U64 value = flashc_read_all_gp_fuses(); + flashc_erase_all_gp_fuses(FALSE); + error_status = flashc_error_status; + for (current_gp_fuse_byte = 0; current_gp_fuse_byte < 8; current_gp_fuse_byte++, value >>= 8) + { + if (current_gp_fuse_byte != gp_fuse_byte) + { + flashc_write_gp_fuse_byte(current_gp_fuse_byte, value); + error_status |= flashc_error_status; + } + } + flashc_error_status = error_status; + return (check) ? (flashc_read_gp_fuse_byte(gp_fuse_byte) == 0xFF) : TRUE; +} + + +Bool flashc_erase_all_gp_fuses(Bool check) +{ + flashc_issue_command(AVR32_FLASHC_FCMD_CMD_EAGPF, -1); + return (check) ? (flashc_read_all_gp_fuses() == 0xFFFFFFFFFFFFFFFFULL) : TRUE; +} + + +void flashc_write_gp_fuse_bit(unsigned int gp_fuse_bit, Bool value) +{ + if (!value) + flashc_issue_command(AVR32_FLASHC_FCMD_CMD_WGPB, gp_fuse_bit & 0x3F); +} + + +void flashc_write_gp_fuse_bitfield(unsigned int pos, unsigned int width, U64 value) +{ + unsigned int error_status = 0; + unsigned int gp_fuse_bit; + pos &= 0x3F; + width = min(width, 64); + for (gp_fuse_bit = pos; gp_fuse_bit < pos + width; gp_fuse_bit++, value >>= 1) + { + flashc_write_gp_fuse_bit(gp_fuse_bit, value & 0x01); + error_status |= flashc_error_status; + } + flashc_error_status = error_status; +} + + +void flashc_write_gp_fuse_byte(unsigned int gp_fuse_byte, U8 value) +{ + flashc_issue_command(AVR32_FLASHC_FCMD_CMD_PGPFB, (gp_fuse_byte & 0x07) | value << 3); +} + + +void flashc_write_all_gp_fuses(U64 value) +{ + unsigned int error_status = 0; + unsigned int gp_fuse_byte; + for (gp_fuse_byte = 0; gp_fuse_byte < 8; gp_fuse_byte++, value >>= 8) + { + flashc_write_gp_fuse_byte(gp_fuse_byte, value); + error_status |= flashc_error_status; + } + flashc_error_status = error_status; +} + + +void flashc_set_gp_fuse_bit(unsigned int gp_fuse_bit, Bool value) +{ + if (value) + flashc_erase_gp_fuse_bit(gp_fuse_bit, FALSE); + else + flashc_write_gp_fuse_bit(gp_fuse_bit, FALSE); +} + + +void flashc_set_gp_fuse_bitfield(unsigned int pos, unsigned int width, U64 value) +{ + unsigned int error_status = 0; + unsigned int gp_fuse_bit; + pos &= 0x3F; + width = min(width, 64); + for (gp_fuse_bit = pos; gp_fuse_bit < pos + width; gp_fuse_bit++, value >>= 1) + { + flashc_set_gp_fuse_bit(gp_fuse_bit, value & 0x01); + error_status |= flashc_error_status; + } + flashc_error_status = error_status; +} + + +void flashc_set_gp_fuse_byte(unsigned int gp_fuse_byte, U8 value) +{ + unsigned int error_status; + switch (value) + { + case 0xFF: + flashc_erase_gp_fuse_byte(gp_fuse_byte, FALSE); + break; + case 0x00: + flashc_write_gp_fuse_byte(gp_fuse_byte, 0x00); + break; + default: + flashc_erase_gp_fuse_byte(gp_fuse_byte, FALSE); + error_status = flashc_error_status; + flashc_write_gp_fuse_byte(gp_fuse_byte, value); + flashc_error_status |= error_status; + } +} + + +void flashc_set_all_gp_fuses(U64 value) +{ + unsigned int error_status; + switch (value) + { + case 0xFFFFFFFFFFFFFFFFULL: + flashc_erase_all_gp_fuses(FALSE); + break; + case 0x0000000000000000ULL: + flashc_write_all_gp_fuses(0x0000000000000000ULL); + break; + default: + flashc_erase_all_gp_fuses(FALSE); + error_status = flashc_error_status; + flashc_write_all_gp_fuses(value); + flashc_error_status |= error_status; + } +} + + +//! @} + + +/*! \name Access to Flash Pages + */ +//! @{ + + +void flashc_clear_page_buffer(void) +{ + flashc_issue_command(AVR32_FLASHC_FCMD_CMD_CPB, -1); +} + + +Bool flashc_is_page_erased(void) +{ + return ((AVR32_FLASHC.fsr & AVR32_FLASHC_FSR_QPRR_MASK) != 0); +} + + +Bool flashc_quick_page_read(int page_number) +{ + flashc_issue_command(AVR32_FLASHC_FCMD_CMD_QPR, page_number); + return flashc_is_page_erased(); +} + + +Bool flashc_erase_page(int page_number, Bool check) +{ + Bool page_erased = TRUE; + flashc_issue_command(AVR32_FLASHC_FCMD_CMD_EP, page_number); + if (check) + { + unsigned int error_status = flashc_error_status; + page_erased = flashc_quick_page_read(-1); + flashc_error_status |= error_status; + } + return page_erased; +} + + +Bool flashc_erase_all_pages(Bool check) +{ + Bool all_pages_erased = TRUE; + unsigned int error_status = 0; + unsigned int page_number = flashc_get_page_count(); + while (page_number) + { + all_pages_erased &= flashc_erase_page(--page_number, check); + error_status |= flashc_error_status; + } + flashc_error_status = error_status; + return all_pages_erased; +} + + +void flashc_write_page(int page_number) +{ + flashc_issue_command(AVR32_FLASHC_FCMD_CMD_WP, page_number); +} + + +Bool flashc_quick_user_page_read(void) +{ + flashc_issue_command(AVR32_FLASHC_FCMD_CMD_QPRUP, -1); + return flashc_is_page_erased(); +} + + +Bool flashc_erase_user_page(Bool check) +{ + flashc_issue_command(AVR32_FLASHC_FCMD_CMD_EUP, -1); + return (check) ? flashc_quick_user_page_read() : TRUE; +} + + +void flashc_write_user_page(void) +{ + flashc_issue_command(AVR32_FLASHC_FCMD_CMD_WUP, -1); +} + + +volatile void *flashc_memset8(volatile void *dst, U8 src, size_t nbytes, Bool erase) +{ + return flashc_memset16(dst, src | (U16)src << 8, nbytes, erase); +} + + +volatile void *flashc_memset16(volatile void *dst, U16 src, size_t nbytes, Bool erase) +{ + return flashc_memset32(dst, src | (U32)src << 16, nbytes, erase); +} + + +volatile void *flashc_memset32(volatile void *dst, U32 src, size_t nbytes, Bool erase) +{ + return flashc_memset64(dst, src | (U64)src << 32, nbytes, erase); +} + + +volatile void *flashc_memset64(volatile void *dst, U64 src, size_t nbytes, Bool erase) +{ + // Use aggregated pointers to have several alignments available for a same address. + UnionCVPtr flash_array_end; + UnionVPtr dest; + Union64 source = {0}; + StructCVPtr dest_end; + UnionCVPtr flash_page_source_end; + Bool incomplete_flash_page_end; + Union64 flash_dword; + UnionVPtr tmp; + unsigned int error_status = 0; + unsigned int i; + + // Reformat arguments. + flash_array_end.u8ptr = AVR32_FLASH + flashc_get_flash_size(); + dest.u8ptr = dst; + for (i = (Get_align((U32)dest.u8ptr, sizeof(U64)) - 1) & (sizeof(U64) - 1); + src; i = (i - 1) & (sizeof(U64) - 1)) + { + source.u8[i] = src; + src >>= 8; + } + dest_end.u8ptr = dest.u8ptr + nbytes; + + // If destination is outside flash, go to next flash page if any. + if (dest.u8ptr < AVR32_FLASH) + { + dest.u8ptr = AVR32_FLASH; + } + else if (flash_array_end.u8ptr <= dest.u8ptr && dest.u8ptr < AVR32_FLASHC_USER_PAGE) + { + dest.u8ptr = AVR32_FLASHC_USER_PAGE; + } + + // If end of destination is outside flash, move it to the end of the previous flash page if any. + if (dest_end.u8ptr > AVR32_FLASHC_USER_PAGE + AVR32_FLASHC_USER_PAGE_SIZE) + { + dest_end.u8ptr = AVR32_FLASHC_USER_PAGE + AVR32_FLASHC_USER_PAGE_SIZE; + } + else if (AVR32_FLASHC_USER_PAGE >= dest_end.u8ptr && dest_end.u8ptr > flash_array_end.u8ptr) + { + dest_end.u8ptr = flash_array_end.u8ptr; + } + + // Align each end of destination pointer with its natural boundary. + dest_end.u16ptr = (U16 *)Align_down((U32)dest_end.u8ptr, sizeof(U16)); + dest_end.u32ptr = (U32 *)Align_down((U32)dest_end.u16ptr, sizeof(U32)); + dest_end.u64ptr = (U64 *)Align_down((U32)dest_end.u32ptr, sizeof(U64)); + + // While end of destination is not reached... + while (dest.u8ptr < dest_end.u8ptr) + { + // Clear the page buffer in order to prepare data for a flash page write. + flashc_clear_page_buffer(); + error_status |= flashc_error_status; + + // Determine where the source data will end in the current flash page. + flash_page_source_end.u64ptr = + (U64 *)min((U32)dest_end.u64ptr, + Align_down((U32)dest.u8ptr, AVR32_FLASHC_PAGE_SIZE) + AVR32_FLASHC_PAGE_SIZE); + + // Determine if the current destination page has an incomplete end. + incomplete_flash_page_end = (Align_down((U32)dest.u8ptr, AVR32_FLASHC_PAGE_SIZE) >= + Align_down((U32)dest_end.u8ptr, AVR32_FLASHC_PAGE_SIZE)); + + // Use a flash double-word buffer to manage unaligned accesses. + flash_dword.u64 = source.u64; + + // If destination does not point to the beginning of the current flash page... + if (!Test_align((U32)dest.u8ptr, AVR32_FLASHC_PAGE_SIZE)) + { + // Fill the beginning of the page buffer with the current flash page data. + // This is required by the hardware, even if page erase is not requested, + // in order to be able to write successfully to erased parts of flash + // pages that have already been written to. + for (tmp.u8ptr = (U8 *)Align_down((U32)dest.u8ptr, AVR32_FLASHC_PAGE_SIZE); + tmp.u64ptr < (U64 *)Align_down((U32)dest.u8ptr, sizeof(U64)); + tmp.u64ptr++) + *tmp.u64ptr = *tmp.u64ptr; + + // If destination is not 64-bit aligned... + if (!Test_align((U32)dest.u8ptr, sizeof(U64))) + { + // Fill the beginning of the flash double-word buffer with the current + // flash page data. + // This is required by the hardware, even if page erase is not + // requested, in order to be able to write successfully to erased parts + // of flash pages that have already been written to. + for (i = 0; i < Get_align((U32)dest.u8ptr, sizeof(U64)); i++) + flash_dword.u8[i] = *tmp.u8ptr++; + + // Align the destination pointer with its 64-bit boundary. + dest.u64ptr = (U64 *)Align_down((U32)dest.u8ptr, sizeof(U64)); + + // If the current destination double-word is not the last one... + if (dest.u64ptr < dest_end.u64ptr) + { + // Write the flash double-word buffer to the page buffer and reinitialize it. + *dest.u64ptr++ = flash_dword.u64; + flash_dword.u64 = source.u64; + } + } + } + + // Write the source data to the page buffer with 64-bit alignment. + for (i = flash_page_source_end.u64ptr - dest.u64ptr; i; i--) + *dest.u64ptr++ = source.u64; + + // If the current destination page has an incomplete end... + if (incomplete_flash_page_end) + { + // This is required by the hardware, even if page erase is not requested, + // in order to be able to write successfully to erased parts of flash + // pages that have already been written to. + { + tmp.u8ptr = (volatile U8 *)dest_end.u8ptr; + + // If end of destination is not 64-bit aligned... + if (!Test_align((U32)dest_end.u8ptr, sizeof(U64))) + { + // Fill the end of the flash double-word buffer with the current flash page data. + for (i = Get_align((U32)dest_end.u8ptr, sizeof(U64)); i < sizeof(U64); i++) + flash_dword.u8[i] = *tmp.u8ptr++; + + // Write the flash double-word buffer to the page buffer. + *dest.u64ptr++ = flash_dword.u64; + } + + // Fill the end of the page buffer with the current flash page data. + for (; !Test_align((U32)tmp.u64ptr, AVR32_FLASHC_PAGE_SIZE); tmp.u64ptr++) + *tmp.u64ptr = *tmp.u64ptr; + } + } + + // If the current flash page is in the flash array... + if (dest.u8ptr <= AVR32_FLASHC_USER_PAGE) + { + // Erase the current page if requested and write it from the page buffer. + if (erase) + { + flashc_erase_page(-1, FALSE); + error_status |= flashc_error_status; + } + flashc_write_page(-1); + error_status |= flashc_error_status; + + // If the end of the flash array is reached, go to the User page. + if (dest.u8ptr >= flash_array_end.u8ptr) + dest.u8ptr = AVR32_FLASHC_USER_PAGE; + } + // If the current flash page is the User page... + else + { + // Erase the User page if requested and write it from the page buffer. + if (erase) + { + flashc_erase_user_page(FALSE); + error_status |= flashc_error_status; + } + flashc_write_user_page(); + error_status |= flashc_error_status; + } + } + + // Update the FLASHC error status. + flashc_error_status = error_status; + + // Return the initial destination pointer as the standard memset function does. + return dst; +} + + +volatile void *flashc_memcpy(volatile void *dst, const void *src, size_t nbytes, Bool erase) +{ + // Use aggregated pointers to have several alignments available for a same address. + UnionCVPtr flash_array_end; + UnionVPtr dest; + UnionCPtr source; + StructCVPtr dest_end; + UnionCVPtr flash_page_source_end; + Bool incomplete_flash_page_end; + Union64 flash_dword; + Bool flash_dword_pending = FALSE; + UnionVPtr tmp; + unsigned int error_status = 0; + unsigned int i, j; + + // Reformat arguments. + flash_array_end.u8ptr = AVR32_FLASH + flashc_get_flash_size(); + dest.u8ptr = dst; + source.u8ptr = src; + dest_end.u8ptr = dest.u8ptr + nbytes; + + // If destination is outside flash, go to next flash page if any. + if (dest.u8ptr < AVR32_FLASH) + { + source.u8ptr += AVR32_FLASH - dest.u8ptr; + dest.u8ptr = AVR32_FLASH; + } + else if (flash_array_end.u8ptr <= dest.u8ptr && dest.u8ptr < AVR32_FLASHC_USER_PAGE) + { + source.u8ptr += AVR32_FLASHC_USER_PAGE - dest.u8ptr; + dest.u8ptr = AVR32_FLASHC_USER_PAGE; + } + + // If end of destination is outside flash, move it to the end of the previous flash page if any. + if (dest_end.u8ptr > AVR32_FLASHC_USER_PAGE + AVR32_FLASHC_USER_PAGE_SIZE) + { + dest_end.u8ptr = AVR32_FLASHC_USER_PAGE + AVR32_FLASHC_USER_PAGE_SIZE; + } + else if (AVR32_FLASHC_USER_PAGE >= dest_end.u8ptr && dest_end.u8ptr > flash_array_end.u8ptr) + { + dest_end.u8ptr = flash_array_end.u8ptr; + } + + // Align each end of destination pointer with its natural boundary. + dest_end.u16ptr = (U16 *)Align_down((U32)dest_end.u8ptr, sizeof(U16)); + dest_end.u32ptr = (U32 *)Align_down((U32)dest_end.u16ptr, sizeof(U32)); + dest_end.u64ptr = (U64 *)Align_down((U32)dest_end.u32ptr, sizeof(U64)); + + // While end of destination is not reached... + while (dest.u8ptr < dest_end.u8ptr) + { + // Clear the page buffer in order to prepare data for a flash page write. + flashc_clear_page_buffer(); + error_status |= flashc_error_status; + + // Determine where the source data will end in the current flash page. + flash_page_source_end.u64ptr = + (U64 *)min((U32)dest_end.u64ptr, + Align_down((U32)dest.u8ptr, AVR32_FLASHC_PAGE_SIZE) + AVR32_FLASHC_PAGE_SIZE); + + // Determine if the current destination page has an incomplete end. + incomplete_flash_page_end = (Align_down((U32)dest.u8ptr, AVR32_FLASHC_PAGE_SIZE) >= + Align_down((U32)dest_end.u8ptr, AVR32_FLASHC_PAGE_SIZE)); + + // If destination does not point to the beginning of the current flash page... + if (!Test_align((U32)dest.u8ptr, AVR32_FLASHC_PAGE_SIZE)) + { + // Fill the beginning of the page buffer with the current flash page data. + // This is required by the hardware, even if page erase is not requested, + // in order to be able to write successfully to erased parts of flash + // pages that have already been written to. + for (tmp.u8ptr = (U8 *)Align_down((U32)dest.u8ptr, AVR32_FLASHC_PAGE_SIZE); + tmp.u64ptr < (U64 *)Align_down((U32)dest.u8ptr, sizeof(U64)); + tmp.u64ptr++) + *tmp.u64ptr = *tmp.u64ptr; + + // If destination is not 64-bit aligned... + if (!Test_align((U32)dest.u8ptr, sizeof(U64))) + { + // Fill the beginning of the flash double-word buffer with the current + // flash page data. + // This is required by the hardware, even if page erase is not + // requested, in order to be able to write successfully to erased parts + // of flash pages that have already been written to. + for (i = 0; i < Get_align((U32)dest.u8ptr, sizeof(U64)); i++) + flash_dword.u8[i] = *tmp.u8ptr++; + + // Fill the end of the flash double-word buffer with the source data. + for (; i < sizeof(U64); i++) + flash_dword.u8[i] = *source.u8ptr++; + + // Align the destination pointer with its 64-bit boundary. + dest.u64ptr = (U64 *)Align_down((U32)dest.u8ptr, sizeof(U64)); + + // If the current destination double-word is not the last one... + if (dest.u64ptr < dest_end.u64ptr) + { + // Write the flash double-word buffer to the page buffer. + *dest.u64ptr++ = flash_dword.u64; + } + // If the current destination double-word is the last one, the flash + // double-word buffer must be kept for later. + else flash_dword_pending = TRUE; + } + } + + // Read the source data with the maximal possible alignment and write it to + // the page buffer with 64-bit alignment. + switch (Get_align((U32)source.u8ptr, sizeof(U32))) + { + case 0: + for (i = flash_page_source_end.u64ptr - dest.u64ptr; i; i--) + *dest.u64ptr++ = *source.u64ptr++; + break; + + case sizeof(U16): + for (i = flash_page_source_end.u64ptr - dest.u64ptr; i; i--) + { + for (j = 0; j < sizeof(U64) / sizeof(U16); j++) flash_dword.u16[j] = *source.u16ptr++; + *dest.u64ptr++ = flash_dword.u64; + } + break; + + default: + for (i = flash_page_source_end.u64ptr - dest.u64ptr; i; i--) + { + for (j = 0; j < sizeof(U64); j++) flash_dword.u8[j] = *source.u8ptr++; + *dest.u64ptr++ = flash_dword.u64; + } + } + + // If the current destination page has an incomplete end... + if (incomplete_flash_page_end) + { + // If the flash double-word buffer is in use, do not initialize it. + if (flash_dword_pending) i = Get_align((U32)dest_end.u8ptr, sizeof(U64)); + // If the flash double-word buffer is free... + else + { + // Fill the beginning of the flash double-word buffer with the source data. + for (i = 0; i < Get_align((U32)dest_end.u8ptr, sizeof(U64)); i++) + flash_dword.u8[i] = *source.u8ptr++; + } + + // This is required by the hardware, even if page erase is not requested, + // in order to be able to write successfully to erased parts of flash + // pages that have already been written to. + { + tmp.u8ptr = (volatile U8 *)dest_end.u8ptr; + + // If end of destination is not 64-bit aligned... + if (!Test_align((U32)dest_end.u8ptr, sizeof(U64))) + { + // Fill the end of the flash double-word buffer with the current flash page data. + for (; i < sizeof(U64); i++) + flash_dword.u8[i] = *tmp.u8ptr++; + + // Write the flash double-word buffer to the page buffer. + *dest.u64ptr++ = flash_dword.u64; + } + + // Fill the end of the page buffer with the current flash page data. + for (; !Test_align((U32)tmp.u64ptr, AVR32_FLASHC_PAGE_SIZE); tmp.u64ptr++) + *tmp.u64ptr = *tmp.u64ptr; + } + } + + // If the current flash page is in the flash array... + if (dest.u8ptr <= AVR32_FLASHC_USER_PAGE) + { + // Erase the current page if requested and write it from the page buffer. + if (erase) + { + flashc_erase_page(-1, FALSE); + error_status |= flashc_error_status; + } + flashc_write_page(-1); + error_status |= flashc_error_status; + + // If the end of the flash array is reached, go to the User page. + if (dest.u8ptr >= flash_array_end.u8ptr) + { + source.u8ptr += AVR32_FLASHC_USER_PAGE - dest.u8ptr; + dest.u8ptr = AVR32_FLASHC_USER_PAGE; + } + } + // If the current flash page is the User page... + else + { + // Erase the User page if requested and write it from the page buffer. + if (erase) + { + flashc_erase_user_page(FALSE); + error_status |= flashc_error_status; + } + flashc_write_user_page(); + error_status |= flashc_error_status; + } + } + + // Update the FLASHC error status. + flashc_error_status = error_status; + + // Return the initial destination pointer as the standard memcpy function does. + return dst; +} + + +#if UC3C +void flashc_set_flash_waitstate_and_readmode(unsigned long cpu_f_hz) +{ + //! Device-specific data + #undef AVR32_FLASHC_FWS_0_MAX_FREQ + #undef AVR32_FLASHC_FWS_1_MAX_FREQ + #undef AVR32_FLASHC_HSEN_FWS_0_MAX_FREQ + #undef AVR32_FLASHC_HSEN_FWS_1_MAX_FREQ + #define AVR32_FLASHC_FWS_0_MAX_FREQ 33000000 + #define AVR32_FLASHC_FWS_1_MAX_FREQ 66000000 + #define AVR32_FLASHC_HSEN_FWS_0_MAX_FREQ 33000000 + #define AVR32_FLASHC_HSEN_FWS_1_MAX_FREQ 72000000 + // These defines are missing from or wrong in the toolchain header files uc3cxxx.h + // Put a Bugzilla + + if(cpu_f_hz > AVR32_FLASHC_HSEN_FWS_0_MAX_FREQ) // > 33MHz + { + // Set a wait-state + flashc_set_wait_state(1); + if(cpu_f_hz <= AVR32_FLASHC_FWS_1_MAX_FREQ) // <= 66MHz and >33Mhz + { + // Disable the high-speed read mode. + flashc_issue_command(AVR32_FLASHC_FCMD_CMD_HSDIS, -1); + } + else // > 66Mhz + { + // Enable the high-speed read mode. + flashc_issue_command(AVR32_FLASHC_FCMD_CMD_HSEN, -1); + } + } + else // <= 33 MHz + { + // Disable wait-state + flashc_set_wait_state(0); + + // Disable the high-speed read mode. + flashc_issue_command(AVR32_FLASHC_FCMD_CMD_HSDIS, -1); + + } +} +#endif // UC3C device-specific implementation + +//! @} diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/FLASHC/flashc.h b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/FLASHC/flashc.h new file mode 100644 index 0000000..9f2547a --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/FLASHC/flashc.h @@ -0,0 +1,1002 @@ +/* This header file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file is prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief FLASHC driver for AVR32 UC3. + * + * AVR32 Flash Controller driver module. + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices with a FLASHC module can be used. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + ******************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#ifndef _FLASHC_H_ +#define _FLASHC_H_ + +#include <avr32/io.h> +#include <stddef.h> +#include "compiler.h" + +//! Number of flash regions defined by the FLASHC. +#define AVR32_FLASHC_REGIONS (AVR32_FLASHC_FLASH_SIZE /\ + (AVR32_FLASHC_PAGES_PR_REGION * AVR32_FLASHC_PAGE_SIZE)) + + +/*! \name Flash Properties + */ +//! @{ + +/*! \brief Gets the size of the whole flash array. + * + * \return The size of the whole flash array in bytes. + */ +extern unsigned int flashc_get_flash_size(void); + +/*! \brief Gets the total number of pages in the flash array. + * + * \return The total number of pages in the flash array. + */ +extern unsigned int flashc_get_page_count(void); + +/*! \brief Gets the number of pages in each flash region. + * + * \return The number of pages in each flash region. + */ +extern unsigned int flashc_get_page_count_per_region(void); + +/*! \brief Gets the region number of a page. + * + * \param page_number The page number: + * \arg \c 0 to <tt>(flashc_get_page_count() - 1)</tt>: a page number within + * the flash array; + * \arg <tt>< 0</tt>: the current page number. + * + * \return The region number of the specified page. + */ +extern unsigned int flashc_get_page_region(int page_number); + +/*! \brief Gets the number of the first page of a region. + * + * \param region The region number: \c 0 to <tt>(AVR32_FLASHC_REGIONS - 1)</tt>. + * + * \return The number of the first page of the specified region. + */ +extern unsigned int flashc_get_region_first_page_number(unsigned int region); + +//! @} + + +/*! \name FLASHC Control + */ +//! @{ + +/*! \brief Gets the number of wait states of flash read accesses. + * + * \return The number of wait states of flash read accesses. + */ +extern unsigned int flashc_get_wait_state(void); + +/*! \brief Sets the number of wait states of flash read accesses. + * + * \param wait_state The number of wait states of flash read accesses: \c 0 to + * \c 1. + */ +extern void flashc_set_wait_state(unsigned int wait_state); + +/*! \brief Tells whether the Flash Ready interrupt is enabled. + * + * \return Whether the Flash Ready interrupt is enabled. + */ +extern Bool flashc_is_ready_int_enabled(void); + +/*! \brief Enables or disables the Flash Ready interrupt. + * + * \param enable Whether to enable the Flash Ready interrupt: \c TRUE or + * \c FALSE. + */ +extern void flashc_enable_ready_int(Bool enable); + +/*! \brief Tells whether the Lock Error interrupt is enabled. + * + * \return Whether the Lock Error interrupt is enabled. + */ +extern Bool flashc_is_lock_error_int_enabled(void); + +/*! \brief Enables or disables the Lock Error interrupt. + * + * \param enable Whether to enable the Lock Error interrupt: \c TRUE or + * \c FALSE. + */ +extern void flashc_enable_lock_error_int(Bool enable); + +/*! \brief Tells whether the Programming Error interrupt is enabled. + * + * \return Whether the Programming Error interrupt is enabled. + */ +extern Bool flashc_is_prog_error_int_enabled(void); + +/*! \brief Enables or disables the Programming Error interrupt. + * + * \param enable Whether to enable the Programming Error interrupt: \c TRUE or + * \c FALSE. + */ +extern void flashc_enable_prog_error_int(Bool enable); + +//! @} + + +/*! \name FLASHC Status + */ +//! @{ + +/*! \brief Tells whether the FLASHC is ready to run a new command. + * + * \return Whether the FLASHC is ready to run a new command. + */ +extern Bool flashc_is_ready(void); + +/*! \brief Waits actively until the FLASHC is ready to run a new command. + * + * This is the default function assigned to \ref flashc_wait_until_ready. + */ +extern void flashc_default_wait_until_ready(void); + +//! Pointer to the function used by the driver when it needs to wait until the +//! FLASHC is ready to run a new command. +//! The default function is \ref flashc_default_wait_until_ready. +//! The user may change this pointer to use another implementation. +extern void (*volatile flashc_wait_until_ready)(void); + +/*! \brief Tells whether a Lock Error has occurred during the last function + * called that issued one or more FLASHC commands. + * + * \return Whether a Lock Error has occurred during the last function called + * that issued one or more FLASHC commands. + */ +extern Bool flashc_is_lock_error(void); + +/*! \brief Tells whether a Programming Error has occurred during the last + * function called that issued one or more FLASHC commands. + * + * \return Whether a Programming Error has occurred during the last function + * called that issued one or more FLASHC commands. + */ +extern Bool flashc_is_programming_error(void); + +//! @} + + +/*! \name FLASHC Command Control + */ +//! @{ + +/*! \brief Gets the last issued FLASHC command. + * + * \return The last issued FLASHC command. + */ +extern unsigned int flashc_get_command(void); + +/*! \brief Gets the current FLASHC page number. + * + * \return The current FLASHC page number. + */ +extern unsigned int flashc_get_page_number(void); + +/*! \brief Issues a FLASHC command. + * + * \param command The command: \c AVR32_FLASHC_FCMD_CMD_x. + * \param page_number The page number to apply the command to: + * \arg \c 0 to <tt>(flashc_get_page_count() - 1)</tt>: a page number within + * the flash array; + * \arg <tt>< 0</tt>: use this to apply the command to the current page number + * or if the command does not apply to any page number; + * \arg this argument may have other meanings according to the command. See + * the FLASHC chapter of the MCU datasheet. + * + * \warning A Lock Error is issued if the command violates the protection + * mechanism. + * + * \warning A Programming Error is issued if the command is invalid. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + */ +extern void flashc_issue_command(unsigned int command, int page_number); + +//! @} + + +/*! \name FLASHC Global Commands + */ +//! @{ + +/*! \brief Issues a No Operation command to the FLASHC. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + */ +extern void flashc_no_operation(void); + +/*! \brief Issues an Erase All command to the FLASHC. + * + * This command erases all bits in the flash array, the general-purpose fuse + * bits and the Security bit. The User page is not erased. + * + * This command also ensures that all volatile memories, such as register file + * and RAMs, are erased before the Security bit is erased, i.e. deactivated. + * + * \warning A Lock Error is issued if at least one region is locked or the + * bootloader protection is active. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + * + * \note An erase operation can only set bits. + */ +extern void flashc_erase_all(void); + +//! @} + + +/*! \name FLASHC Protection Mechanisms + */ +//! @{ + +/*! \brief Tells whether the Security bit is active. + * + * \return Whether the Security bit is active. + */ +extern Bool flashc_is_security_bit_active(void); + +/*! \brief Activates the Security bit. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + */ +extern void flashc_activate_security_bit(void); + +/*! \brief Gets the bootloader protected size. + * + * \return The bootloader protected size in bytes. + */ +extern unsigned int flashc_get_bootloader_protected_size(void); + +/*! \brief Sets the bootloader protected size. + * + * \param bootprot_size The wanted bootloader protected size in bytes. If this + * size is not supported, the actual size will be the + * nearest greater available size or the maximal possible + * size if the requested size is too large. + * + * \return The actual bootloader protected size in bytes. + * + * \warning A Lock Error is issued if the Security bit is active. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + */ +extern unsigned int flashc_set_bootloader_protected_size(unsigned int bootprot_size); + +/*! \brief Tells whether external privileged fetch is locked. + * + * \return Whether external privileged fetch is locked. + */ +extern Bool flashc_is_external_privileged_fetch_locked(void); + +/*! \brief Locks or unlocks external privileged fetch. + * + * \param lock Whether to lock external privileged fetch: \c TRUE or \c FALSE. + * + * \warning A Lock Error is issued if the Security bit is active. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + */ +extern void flashc_lock_external_privileged_fetch(Bool lock); + +/*! \brief Tells whether the region of a page is locked. + * + * \param page_number The page number: + * \arg \c 0 to <tt>(flashc_get_page_count() - 1)</tt>: a page number within + * the flash array; + * \arg <tt>< 0</tt>: the current page number. + * + * \return Whether the region of the specified page is locked. + */ +extern Bool flashc_is_page_region_locked(int page_number); + +/*! \brief Tells whether a region is locked. + * + * \param region The region number: \c 0 to <tt>(AVR32_FLASHC_REGIONS - 1)</tt>. + * + * \return Whether the specified region is locked. + */ +extern Bool flashc_is_region_locked(unsigned int region); + +/*! \brief Locks or unlocks the region of a page. + * + * \param page_number The page number: + * \arg \c 0 to <tt>(flashc_get_page_count() - 1)</tt>: a page number within + * the flash array; + * \arg <tt>< 0</tt>: the current page number. + * \param lock Whether to lock the region of the specified page: \c TRUE or + * \c FALSE. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + */ +extern void flashc_lock_page_region(int page_number, Bool lock); + +/*! \brief Locks or unlocks a region. + * + * \param region The region number: \c 0 to <tt>(AVR32_FLASHC_REGIONS - 1)</tt>. + * \param lock Whether to lock the specified region: \c TRUE or \c FALSE. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + */ +extern void flashc_lock_region(unsigned int region, Bool lock); + +/*! \brief Locks or unlocks all regions. + * + * \param lock Whether to lock the regions: \c TRUE or \c FALSE. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + */ +extern void flashc_lock_all_regions(Bool lock); + +//! @} + + +/*! \name Access to General-Purpose Fuses + */ +//! @{ + +/*! \brief Reads a general-purpose fuse bit. + * + * \param gp_fuse_bit The general-purpose fuse bit: \c 0 to \c 63. + * + * \return The value of the specified general-purpose fuse bit. + * + * \note The actual number of general-purpose fuse bits implemented by hardware + * is given by \c AVR32_FLASHC_GPF_NUM. The other bits among the 64 are + * fixed at 1 by hardware. + */ +extern Bool flashc_read_gp_fuse_bit(unsigned int gp_fuse_bit); + +/*! \brief Reads a general-purpose fuse bit-field. + * + * \param pos The bit-position of the general-purpose fuse bit-field: \c 0 to + * \c 63. + * \param width The bit-width of the general-purpose fuse bit-field: \c 0 to + * \c 64. + * + * \return The value of the specified general-purpose fuse bit-field. + * + * \note The actual number of general-purpose fuse bits implemented by hardware + * is given by \c AVR32_FLASHC_GPF_NUM. The other bits among the 64 are + * fixed at 1 by hardware. + */ +extern U64 flashc_read_gp_fuse_bitfield(unsigned int pos, unsigned int width); + +/*! \brief Reads a general-purpose fuse byte. + * + * \param gp_fuse_byte The general-purpose fuse byte: \c 0 to \c 7. + * + * \return The value of the specified general-purpose fuse byte. + * + * \note The actual number of general-purpose fuse bits implemented by hardware + * is given by \c AVR32_FLASHC_GPF_NUM. The other bits among the 64 are + * fixed at 1 by hardware. + */ +extern U8 flashc_read_gp_fuse_byte(unsigned int gp_fuse_byte); + +/*! \brief Reads all general-purpose fuses. + * + * \return The value of all general-purpose fuses as a word. + * + * \note The actual number of general-purpose fuse bits implemented by hardware + * is given by \c AVR32_FLASHC_GPF_NUM. The other bits among the 64 are + * fixed at 1 by hardware. + */ +extern U64 flashc_read_all_gp_fuses(void); + +/*! \brief Erases a general-purpose fuse bit. + * + * \param gp_fuse_bit The general-purpose fuse bit: \c 0 to \c 63. + * \param check Whether to check erase: \c TRUE or \c FALSE. + * + * \return Whether the erase succeeded or always \c TRUE if erase check was not + * requested. + * + * \warning A Lock Error is issued if the Security bit is active and the command + * is applied to BOOTPROT or EPFL fuses. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + * + * \note An erase operation can only set bits. + * + * \note The actual number of general-purpose fuse bits implemented by hardware + * is given by \c AVR32_FLASHC_GPF_NUM. The other bits among the 64 are + * fixed at 1 by hardware. + */ +extern Bool flashc_erase_gp_fuse_bit(unsigned int gp_fuse_bit, Bool check); + +/*! \brief Erases a general-purpose fuse bit-field. + * + * \param pos The bit-position of the general-purpose fuse bit-field: \c 0 to + * \c 63. + * \param width The bit-width of the general-purpose fuse bit-field: \c 0 to + * \c 64. + * \param check Whether to check erase: \c TRUE or \c FALSE. + * + * \return Whether the erase succeeded or always \c TRUE if erase check was not + * requested. + * + * \warning A Lock Error is issued if the Security bit is active and the command + * is applied to BOOTPROT or EPFL fuses. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + * + * \note An erase operation can only set bits. + * + * \note The actual number of general-purpose fuse bits implemented by hardware + * is given by \c AVR32_FLASHC_GPF_NUM. The other bits among the 64 are + * fixed at 1 by hardware. + */ +extern Bool flashc_erase_gp_fuse_bitfield(unsigned int pos, unsigned int width, Bool check); + +/*! \brief Erases a general-purpose fuse byte. + * + * \param gp_fuse_byte The general-purpose fuse byte: \c 0 to \c 7. + * \param check Whether to check erase: \c TRUE or \c FALSE. + * + * \return Whether the erase succeeded or always \c TRUE if erase check was not + * requested. + * + * \warning A Lock Error is issued if the Security bit is active. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + * + * \note An erase operation can only set bits. + * + * \note The actual number of general-purpose fuse bits implemented by hardware + * is given by \c AVR32_FLASHC_GPF_NUM. The other bits among the 64 are + * fixed at 1 by hardware. + */ +extern Bool flashc_erase_gp_fuse_byte(unsigned int gp_fuse_byte, Bool check); + +/*! \brief Erases all general-purpose fuses. + * + * \param check Whether to check erase: \c TRUE or \c FALSE. + * + * \return Whether the erase succeeded or always \c TRUE if erase check was not + * requested. + * + * \warning A Lock Error is issued if the Security bit is active. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + * + * \note An erase operation can only set bits. + * + * \note The actual number of general-purpose fuse bits implemented by hardware + * is given by \c AVR32_FLASHC_GPF_NUM. The other bits among the 64 are + * fixed at 1 by hardware. + */ +extern Bool flashc_erase_all_gp_fuses(Bool check); + +/*! \brief Writes a general-purpose fuse bit. + * + * \param gp_fuse_bit The general-purpose fuse bit: \c 0 to \c 63. + * \param value The value of the specified general-purpose fuse bit. + * + * \warning A Lock Error is issued if the Security bit is active and the command + * is applied to BOOTPROT or EPFL fuses. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + * + * \note A write operation can only clear bits. + * + * \note The actual number of general-purpose fuse bits implemented by hardware + * is given by \c AVR32_FLASHC_GPF_NUM. The other bits among the 64 are + * fixed at 1 by hardware. + */ +extern void flashc_write_gp_fuse_bit(unsigned int gp_fuse_bit, Bool value); + +/*! \brief Writes a general-purpose fuse bit-field. + * + * \param pos The bit-position of the general-purpose fuse bit-field: \c 0 to + * \c 63. + * \param width The bit-width of the general-purpose fuse bit-field: \c 0 to + * \c 64. + * \param value The value of the specified general-purpose fuse bit-field. + * + * \warning A Lock Error is issued if the Security bit is active and the command + * is applied to BOOTPROT or EPFL fuses. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + * + * \note A write operation can only clear bits. + * + * \note The actual number of general-purpose fuse bits implemented by hardware + * is given by \c AVR32_FLASHC_GPF_NUM. The other bits among the 64 are + * fixed at 1 by hardware. + */ +extern void flashc_write_gp_fuse_bitfield(unsigned int pos, unsigned int width, U64 value); + +/*! \brief Writes a general-purpose fuse byte. + * + * \param gp_fuse_byte The general-purpose fuse byte: \c 0 to \c 7. + * \param value The value of the specified general-purpose fuse byte. + * + * \warning A Lock Error is issued if the Security bit is active. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + * + * \note A write operation can only clear bits. + * + * \note The actual number of general-purpose fuse bits implemented by hardware + * is given by \c AVR32_FLASHC_GPF_NUM. The other bits among the 64 are + * fixed at 1 by hardware. + */ +extern void flashc_write_gp_fuse_byte(unsigned int gp_fuse_byte, U8 value); + +/*! \brief Writes all general-purpose fuses. + * + * \param value The value of all general-purpose fuses as a word. + * + * \warning A Lock Error is issued if the Security bit is active. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + * + * \note A write operation can only clear bits. + * + * \note The actual number of general-purpose fuse bits implemented by hardware + * is given by \c AVR32_FLASHC_GPF_NUM. The other bits among the 64 are + * fixed at 1 by hardware. + */ +extern void flashc_write_all_gp_fuses(U64 value); + +/*! \brief Sets a general-purpose fuse bit with the appropriate erase and write + * operations. + * + * \param gp_fuse_bit The general-purpose fuse bit: \c 0 to \c 63. + * \param value The value of the specified general-purpose fuse bit. + * + * \warning A Lock Error is issued if the Security bit is active and the command + * is applied to BOOTPROT or EPFL fuses. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + * + * \note The actual number of general-purpose fuse bits implemented by hardware + * is given by \c AVR32_FLASHC_GPF_NUM. The other bits among the 64 are + * fixed at 1 by hardware. + */ +extern void flashc_set_gp_fuse_bit(unsigned int gp_fuse_bit, Bool value); + +/*! \brief Sets a general-purpose fuse bit-field with the appropriate erase and + * write operations. + * + * \param pos The bit-position of the general-purpose fuse bit-field: \c 0 to + * \c 63. + * \param width The bit-width of the general-purpose fuse bit-field: \c 0 to + * \c 64. + * \param value The value of the specified general-purpose fuse bit-field. + * + * \warning A Lock Error is issued if the Security bit is active and the command + * is applied to BOOTPROT or EPFL fuses. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + * + * \note The actual number of general-purpose fuse bits implemented by hardware + * is given by \c AVR32_FLASHC_GPF_NUM. The other bits among the 64 are + * fixed at 1 by hardware. + */ +extern void flashc_set_gp_fuse_bitfield(unsigned int pos, unsigned int width, U64 value); + +/*! \brief Sets a general-purpose fuse byte with the appropriate erase and write + * operations. + * + * \param gp_fuse_byte The general-purpose fuse byte: \c 0 to \c 7. + * \param value The value of the specified general-purpose fuse byte. + * + * \warning A Lock Error is issued if the Security bit is active. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + * + * \note The actual number of general-purpose fuse bits implemented by hardware + * is given by \c AVR32_FLASHC_GPF_NUM. The other bits among the 64 are + * fixed at 1 by hardware. + */ +extern void flashc_set_gp_fuse_byte(unsigned int gp_fuse_byte, U8 value); + +/*! \brief Sets all general-purpose fuses with the appropriate erase and write + * operations. + * + * \param value The value of all general-purpose fuses as a word. + * + * \warning A Lock Error is issued if the Security bit is active. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + * + * \note The actual number of general-purpose fuse bits implemented by hardware + * is given by \c AVR32_FLASHC_GPF_NUM. The other bits among the 64 are + * fixed at 1 by hardware. + */ +extern void flashc_set_all_gp_fuses(U64 value); + +//! @} + + +/*! \name Access to Flash Pages + */ +//! @{ + +/*! \brief Clears the page buffer. + * + * This command resets all bits in the page buffer to one. Write accesses to the + * page buffer can only change page buffer bits from one to zero. + * + * \warning The page buffer is not automatically reset after a page write. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + */ +extern void flashc_clear_page_buffer(void); + +/*! \brief Tells whether the page to which the last Quick Page Read or Quick + * Page Read User Page command was applied was erased. + * + * \return Whether the page to which the last Quick Page Read or Quick Page Read + * User Page command was applied was erased. + */ +extern Bool flashc_is_page_erased(void); + +/*! \brief Applies the Quick Page Read command to a page. + * + * \param page_number The page number: + * \arg \c 0 to <tt>(flashc_get_page_count() - 1)</tt>: a page number within + * the flash array; + * \arg <tt>< 0</tt>: the current page number. + * + * \return Whether the specified page is erased. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + */ +extern Bool flashc_quick_page_read(int page_number); + +/*! \brief Erases a page. + * + * \param page_number The page number: + * \arg \c 0 to <tt>(flashc_get_page_count() - 1)</tt>: a page number within + * the flash array; + * \arg <tt>< 0</tt>: the current page number. + * \param check Whether to check erase: \c TRUE or \c FALSE. + * + * \return Whether the erase succeeded or always \c TRUE if erase check was not + * requested. + * + * \warning A Lock Error is issued if the command is applied to a page belonging + * to a locked region or to the bootloader protected area. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + * + * \note An erase operation can only set bits. + */ +extern Bool flashc_erase_page(int page_number, Bool check); + +/*! \brief Erases all pages within the flash array. + * + * \param check Whether to check erase: \c TRUE or \c FALSE. + * + * \return Whether the erase succeeded or always \c TRUE if erase check was not + * requested. + * + * \warning A Lock Error is issued if at least one region is locked or the + * bootloader protection is active. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + * + * \note An erase operation can only set bits. + */ +extern Bool flashc_erase_all_pages(Bool check); + +/*! \brief Writes a page from the page buffer. + * + * \param page_number The page number: + * \arg \c 0 to <tt>(flashc_get_page_count() - 1)</tt>: a page number within + * the flash array; + * \arg <tt>< 0</tt>: the current page number. + * + * \warning A Lock Error is issued if the command is applied to a page belonging + * to a locked region or to the bootloader protected area. + * + * \warning The page buffer is not automatically reset after a page write. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + * + * \note A write operation can only clear bits. + */ +extern void flashc_write_page(int page_number); + +/*! \brief Issues a Quick Page Read User Page command to the FLASHC. + * + * \return Whether the User page is erased. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + */ +extern Bool flashc_quick_user_page_read(void); + +/*! \brief Erases the User page. + * + * \param check Whether to check erase: \c TRUE or \c FALSE. + * + * \return Whether the erase succeeded or always \c TRUE if erase check was not + * requested. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + * + * \note An erase operation can only set bits. + */ +extern Bool flashc_erase_user_page(Bool check); + +/*! \brief Writes the User page from the page buffer. + * + * \warning The page buffer is not automatically reset after a page write. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + * + * \note A write operation can only clear bits. + */ +extern void flashc_write_user_page(void); + +/*! \brief Copies \a nbytes bytes to the flash destination pointed to by \a dst + * from the repeated \a src source byte. + * + * The destination areas that are not within the flash array or the User page + * are ignored. + * + * All pointer and size alignments are supported. + * + * \param dst Pointer to flash destination. + * \param src Source byte. + * \param nbytes Number of bytes to set. + * \param erase Whether to erase before writing: \c TRUE or \c FALSE. + * + * \return The value of \a dst. + * + * \warning This function may be called with \a erase set to \c FALSE only if + * the destination consists only of erased words, i.e. this function + * can not be used to write only one bit of a previously written word. + * E.g., if \c 0x00000001 then \c 0xFFFFFFFE are written to a word, the + * resulting value in flash may be different from \c 0x00000000. + * + * \warning A Lock Error is issued if the command is applied to pages belonging + * to a locked region or to the bootloader protected area. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + */ +extern volatile void *flashc_memset8(volatile void *dst, U8 src, size_t nbytes, Bool erase); + +/*! \brief Copies \a nbytes bytes to the flash destination pointed to by \a dst + * from the repeated \a src big-endian source half-word. + * + * The destination areas that are not within the flash array or the User page + * are ignored. + * + * All pointer and size alignments are supported. + * + * \param dst Pointer to flash destination. + * \param src Source half-word. + * \param nbytes Number of bytes to set. + * \param erase Whether to erase before writing: \c TRUE or \c FALSE. + * + * \return The value of \a dst. + * + * \warning This function may be called with \a erase set to \c FALSE only if + * the destination consists only of erased words, i.e. this function + * can not be used to write only one bit of a previously written word. + * E.g., if \c 0x00000001 then \c 0xFFFFFFFE are written to a word, the + * resulting value in flash may be different from \c 0x00000000. + * + * \warning A Lock Error is issued if the command is applied to pages belonging + * to a locked region or to the bootloader protected area. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + */ +extern volatile void *flashc_memset16(volatile void *dst, U16 src, size_t nbytes, Bool erase); + +/*! \brief Copies \a nbytes bytes to the flash destination pointed to by \a dst + * from the repeated \a src big-endian source word. + * + * The destination areas that are not within the flash array or the User page + * are ignored. + * + * All pointer and size alignments are supported. + * + * \param dst Pointer to flash destination. + * \param src Source word. + * \param nbytes Number of bytes to set. + * \param erase Whether to erase before writing: \c TRUE or \c FALSE. + * + * \return The value of \a dst. + * + * \warning This function may be called with \a erase set to \c FALSE only if + * the destination consists only of erased words, i.e. this function + * can not be used to write only one bit of a previously written word. + * E.g., if \c 0x00000001 then \c 0xFFFFFFFE are written to a word, the + * resulting value in flash may be different from \c 0x00000000. + * + * \warning A Lock Error is issued if the command is applied to pages belonging + * to a locked region or to the bootloader protected area. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + */ +extern volatile void *flashc_memset32(volatile void *dst, U32 src, size_t nbytes, Bool erase); + +/*! \brief Copies \a nbytes bytes to the flash destination pointed to by \a dst + * from the repeated \a src big-endian source double-word. + * + * The destination areas that are not within the flash array or the User page + * are ignored. + * + * All pointer and size alignments are supported. + * + * \param dst Pointer to flash destination. + * \param src Source double-word. + * \param nbytes Number of bytes to set. + * \param erase Whether to erase before writing: \c TRUE or \c FALSE. + * + * \return The value of \a dst. + * + * \warning This function may be called with \a erase set to \c FALSE only if + * the destination consists only of erased words, i.e. this function + * can not be used to write only one bit of a previously written word. + * E.g., if \c 0x00000001 then \c 0xFFFFFFFE are written to a word, the + * resulting value in flash may be different from \c 0x00000000. + * + * \warning A Lock Error is issued if the command is applied to pages belonging + * to a locked region or to the bootloader protected area. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + */ +extern volatile void *flashc_memset64(volatile void *dst, U64 src, size_t nbytes, Bool erase); + +/*! \brief Copies \a nbytes bytes to the flash destination pointed to by \a dst + * from the repeated \a src big-endian source pattern. + * + * The destination areas that are not within the flash array or the User page + * are ignored. + * + * All pointer and size alignments are supported. + * + * \param dst Pointer to flash destination. + * \param src Source double-word. + * \param src_width \a src width in bits: 8, 16, 32 or 64. + * \param nbytes Number of bytes to set. + * \param erase Whether to erase before writing: \c TRUE or \c FALSE. + * + * \return The value of \a dst. + * + * \warning This function may be called with \a erase set to \c FALSE only if + * the destination consists only of erased words, i.e. this function + * can not be used to write only one bit of a previously written word. + * E.g., if \c 0x00000001 then \c 0xFFFFFFFE are written to a word, the + * resulting value in flash may be different from \c 0x00000000. + * + * \warning A Lock Error is issued if the command is applied to pages belonging + * to a locked region or to the bootloader protected area. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + */ +#define flashc_memset(dst, src, src_width, nbytes, erase) \ + TPASTE2(flashc_memset, src_width)((dst), (src), (nbytes), (erase)) + +/*! \brief Copies \a nbytes bytes to the flash destination pointed to by \a dst + * from the source pointed to by \a src. + * + * The destination areas that are not within the flash array or the User page + * are ignored. + * + * All pointer and size alignments are supported. + * + * \param dst Pointer to flash destination. + * \param src Pointer to source data. + * \param nbytes Number of bytes to copy. + * \param erase Whether to erase before writing: \c TRUE or \c FALSE. + * + * \return The value of \a dst. + * + * \warning If copying takes place between areas that overlap, the behavior is + * undefined. + * + * \warning This function may be called with \a erase set to \c FALSE only if + * the destination consists only of erased words, i.e. this function + * can not be used to write only one bit of a previously written word. + * E.g., if \c 0x00000001 then \c 0xFFFFFFFE are written to a word, the + * resulting value in flash may be different from \c 0x00000000. + * + * \warning A Lock Error is issued if the command is applied to pages belonging + * to a locked region or to the bootloader protected area. + * + * \note The FLASHC error status returned by \ref flashc_is_lock_error and + * \ref flashc_is_programming_error is updated. + */ +extern volatile void *flashc_memcpy(volatile void *dst, const void *src, size_t nbytes, Bool erase); + +#if UC3C + +/*! \brief Depednding to the CPU frequency, set the wait states of flash read + * accesses and enable or disable the High speed read mode. + * + * \param cpu_f_hz The CPU frequency + */ +void flashc_set_flash_waitstate_and_readmode(unsigned long cpu_f_hz); +#endif // UC3C device-specific implementation + +//! @} + + +#endif // _FLASHC_H_ diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/GPIO/gpio.c b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/GPIO/gpio.c new file mode 100644 index 0000000..b6b83c7 --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/GPIO/gpio.c @@ -0,0 +1,458 @@ +/* This source file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file has been prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief GPIO driver for AVR32 UC3. + * + * This file defines a useful set of functions for the GPIO. + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices with a GPIO module can be used. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + *****************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#include "gpio.h" + +//! GPIO module instance. +#define GPIO AVR32_GPIO + + +/*! \name Peripheral Bus Interface + */ +//! @{ + + +int gpio_enable_module(const gpio_map_t gpiomap, unsigned int size) +{ + int status = GPIO_SUCCESS; + unsigned int i; + + for (i = 0; i < size; i++) + { + status |= gpio_enable_module_pin(gpiomap->pin, gpiomap->function); + gpiomap++; + } + + return status; +} + + +int gpio_enable_module_pin(unsigned int pin, unsigned int function) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + + // Enable the correct function. + switch (function) + { + case 0: // A function. + gpio_port->pmr0c = 1 << (pin & 0x1F); + gpio_port->pmr1c = 1 << (pin & 0x1F); +#if defined(AVR32_GPIO_210_H_INCLUDED) || defined(AVR32_GPIO_211_H_INCLUDED) + gpio_port->pmr2c = 1 << (pin & 0x1F); +#endif + break; + + case 1: // B function. + gpio_port->pmr0s = 1 << (pin & 0x1F); + gpio_port->pmr1c = 1 << (pin & 0x1F); +#if defined(AVR32_GPIO_210_H_INCLUDED) || defined(AVR32_GPIO_211_H_INCLUDED) + gpio_port->pmr2c = 1 << (pin & 0x1F); +#endif + break; + + case 2: // C function. + gpio_port->pmr0c = 1 << (pin & 0x1F); + gpio_port->pmr1s = 1 << (pin & 0x1F); +#if defined(AVR32_GPIO_210_H_INCLUDED) || defined(AVR32_GPIO_211_H_INCLUDED) + gpio_port->pmr2c = 1 << (pin & 0x1F); +#endif + break; + + case 3: // D function. + gpio_port->pmr0s = 1 << (pin & 0x1F); + gpio_port->pmr1s = 1 << (pin & 0x1F); +#if defined(AVR32_GPIO_210_H_INCLUDED) || defined(AVR32_GPIO_211_H_INCLUDED) + gpio_port->pmr2c = 1 << (pin & 0x1F); +#endif + break; + +#if defined(AVR32_GPIO_210_H_INCLUDED) || defined(AVR32_GPIO_211_H_INCLUDED) + case 4: // E function. + gpio_port->pmr0c = 1 << (pin & 0x1F); + gpio_port->pmr1c = 1 << (pin & 0x1F); + gpio_port->pmr2s = 1 << (pin & 0x1F); + break; + + case 5: // F function. + gpio_port->pmr0s = 1 << (pin & 0x1F); + gpio_port->pmr1c = 1 << (pin & 0x1F); + gpio_port->pmr2s = 1 << (pin & 0x1F); + break; + + case 6: // G function. + gpio_port->pmr0c = 1 << (pin & 0x1F); + gpio_port->pmr1s = 1 << (pin & 0x1F); + gpio_port->pmr2s = 1 << (pin & 0x1F); + break; + + case 7: // H function. + gpio_port->pmr0s = 1 << (pin & 0x1F); + gpio_port->pmr1s = 1 << (pin & 0x1F); + gpio_port->pmr2s = 1 << (pin & 0x1F); + break; +#endif + + default: + return GPIO_INVALID_ARGUMENT; + } + + // Disable GPIO control. + gpio_port->gperc = 1 << (pin & 0x1F); + + return GPIO_SUCCESS; +} + + +void gpio_enable_gpio(const gpio_map_t gpiomap, unsigned int size) +{ + unsigned int i; + + for (i = 0; i < size; i++) + { + gpio_enable_gpio_pin(gpiomap->pin); + gpiomap++; + } +} + + +void gpio_enable_gpio_pin(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + gpio_port->oderc = 1 << (pin & 0x1F); + gpio_port->gpers = 1 << (pin & 0x1F); +} + + +// The open-drain mode is not synthesized on the current AVR32 products. +// If one day some AVR32 products have this feature, the corresponding part +// numbers should be listed in the #if below. +// Note that other functions are available in this driver to use pins with open +// drain in GPIO mode. The advantage of the open-drain mode functions over these +// other functions is that they can be used not only in GPIO mode but also in +// module mode. +#if 0 + + +void gpio_enable_pin_open_drain(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + gpio_port->odmers = 1 << (pin & 0x1F); +} + + +void gpio_disable_pin_open_drain(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + gpio_port->odmerc = 1 << (pin & 0x1F); +} + + +#endif + + +void gpio_enable_pin_pull_up(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + gpio_port->puers = 1 << (pin & 0x1F); +#if defined(AVR32_GPIO_200_H_INCLUDED) || defined(AVR32_GPIO_210_H_INCLUDED) || defined(AVR32_GPIO_211_H_INCLUDED) + gpio_port->pderc = 1 << (pin & 0x1F); +#endif +} + + +void gpio_disable_pin_pull_up(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + gpio_port->puerc = 1 << (pin & 0x1F); +} + +#if defined(AVR32_GPIO_200_H_INCLUDED) || defined(AVR32_GPIO_210_H_INCLUDED) || defined(AVR32_GPIO_211_H_INCLUDED) +// Added support of Pull-up Resistor, Pull-down Resistor and Buskeeper Control. + +/*! \brief Enables the pull-down resistor of a pin. + * + * \param pin The pin number. + */ +void gpio_enable_pin_pull_down(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + gpio_port->puerc = 1 << (pin & 0x1F); + gpio_port->pders = 1 << (pin & 0x1F); +} + +/*! \brief Disables the pull-down resistor of a pin. + * + * \param pin The pin number. + */ +void gpio_disable_pin_pull_down(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + gpio_port->pderc = 1 << (pin & 0x1F); +} + +/*! \brief Enables the buskeeper functionality on a pin. + * + * \param pin The pin number. + */ +void gpio_enable_pin_buskeeper(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + gpio_port->puers = 1 << (pin & 0x1F); + gpio_port->pders = 1 << (pin & 0x1F); +} + +/*! \brief Disables the buskeeper functionality on a pin. + * + * \param pin The pin number. + */ +void gpio_disable_pin_buskeeper(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + gpio_port->puerc = 1 << (pin & 0x1F); + gpio_port->pderc = 1 << (pin & 0x1F); +} + +#endif + +int gpio_get_pin_value(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + return (gpio_port->pvr >> (pin & 0x1F)) & 1; +} + + +int gpio_get_gpio_pin_output_value(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + return (gpio_port->ovr >> (pin & 0x1F)) & 1; +} + + +int gpio_get_gpio_open_drain_pin_output_value(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + return ((gpio_port->oder >> (pin & 0x1F)) & 1) ^ 1; +} + + +void gpio_set_gpio_pin(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + + gpio_port->ovrs = 1 << (pin & 0x1F); // Value to be driven on the I/O line: 1. + gpio_port->oders = 1 << (pin & 0x1F); // The GPIO output driver is enabled for that pin. + gpio_port->gpers = 1 << (pin & 0x1F); // The GPIO module controls that pin. +} + + +void gpio_clr_gpio_pin(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + + gpio_port->ovrc = 1 << (pin & 0x1F); // Value to be driven on the I/O line: 0. + gpio_port->oders = 1 << (pin & 0x1F); // The GPIO output driver is enabled for that pin. + gpio_port->gpers = 1 << (pin & 0x1F); // The GPIO module controls that pin. +} + + +void gpio_tgl_gpio_pin(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + + gpio_port->ovrt = 1 << (pin & 0x1F); // Toggle the I/O line. + gpio_port->oders = 1 << (pin & 0x1F); // The GPIO output driver is enabled for that pin. + gpio_port->gpers = 1 << (pin & 0x1F); // The GPIO module controls that pin. +} + + +void gpio_set_gpio_open_drain_pin(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + + gpio_port->oderc = 1 << (pin & 0x1F); // The GPIO output driver is disabled for that pin. + gpio_port->gpers = 1 << (pin & 0x1F); // The GPIO module controls that pin. +} + + +void gpio_clr_gpio_open_drain_pin(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + + gpio_port->ovrc = 1 << (pin & 0x1F); // Value to be driven on the I/O line: 0. + gpio_port->oders = 1 << (pin & 0x1F); // The GPIO output driver is enabled for that pin. + gpio_port->gpers = 1 << (pin & 0x1F); // The GPIO module controls that pin. +} + + +void gpio_tgl_gpio_open_drain_pin(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + + gpio_port->ovrc = 1 << (pin & 0x1F); // Value to be driven on the I/O line if the GPIO output driver is enabled: 0. + gpio_port->odert = 1 << (pin & 0x1F); // The GPIO output driver is toggled for that pin. + gpio_port->gpers = 1 << (pin & 0x1F); // The GPIO module controls that pin. +} + + +void gpio_enable_pin_glitch_filter(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + gpio_port->gfers = 1 << (pin & 0x1F); +} + + +void gpio_disable_pin_glitch_filter(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + gpio_port->gferc = 1 << (pin & 0x1F); +} + +/*! \brief Configure the edge detector of an input pin + * + * \param pin The pin number. + * \param mode The edge detection mode (\ref GPIO_PIN_CHANGE, \ref GPIO_RISING_EDGE + * or \ref GPIO_FALLING_EDGE). + * + * \return \ref GPIO_SUCCESS or \ref GPIO_INVALID_ARGUMENT. + */ +static int gpio_configure_edge_detector(unsigned int pin, unsigned int mode) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + + // Configure the edge detector. + switch (mode) + { + case GPIO_PIN_CHANGE: + gpio_port->imr0c = 1 << (pin & 0x1F); + gpio_port->imr1c = 1 << (pin & 0x1F); + break; + + case GPIO_RISING_EDGE: + gpio_port->imr0s = 1 << (pin & 0x1F); + gpio_port->imr1c = 1 << (pin & 0x1F); + break; + + case GPIO_FALLING_EDGE: + gpio_port->imr0c = 1 << (pin & 0x1F); + gpio_port->imr1s = 1 << (pin & 0x1F); + break; + + default: + return GPIO_INVALID_ARGUMENT; + } + + return GPIO_SUCCESS; +} + + +int gpio_enable_pin_interrupt(unsigned int pin, unsigned int mode) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + + // Enable the glitch filter. + gpio_port->gfers = 1 << (pin & 0x1F); + + // Configure the edge detector. + if(GPIO_INVALID_ARGUMENT == gpio_configure_edge_detector(pin, mode)) + return(GPIO_INVALID_ARGUMENT); + + // Enable interrupt. + gpio_port->iers = 1 << (pin & 0x1F); + + return GPIO_SUCCESS; +} + + +void gpio_disable_pin_interrupt(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + gpio_port->ierc = 1 << (pin & 0x1F); +} + + +int gpio_get_pin_interrupt_flag(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + return (gpio_port->ifr >> (pin & 0x1F)) & 1; +} + + +void gpio_clear_pin_interrupt_flag(unsigned int pin) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + gpio_port->ifrc = 1 << (pin & 0x1F); +} + + +//# +//# Peripheral Event System Support. +//# +#if UC3L +int gpio_configure_pin_periph_event_mode(unsigned int pin, unsigned int mode, unsigned int use_igf) +{ + volatile avr32_gpio_port_t *gpio_port = &GPIO.port[pin >> 5]; + + if(TRUE == use_igf) + { + // Enable the glitch filter. + gpio_port->gfers = 1 << (pin & 0x1F); + } + else + { + // Disable the glitch filter. + gpio_port->gferc = 1 << (pin & 0x1F); + } + + // Configure the edge detector. + return(gpio_configure_edge_detector(pin, mode)); +} + +#endif + +//! @} diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/GPIO/gpio.h b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/GPIO/gpio.h new file mode 100644 index 0000000..f0b5fd8 --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/GPIO/gpio.h @@ -0,0 +1,583 @@ +/* This header file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file has been prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief GPIO header for AVR32 UC3. + * + * This file contains basic GPIO driver functions. + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices with a GPIO module can be used. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + *****************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#ifndef _GPIO_H_ +#define _GPIO_H_ + +#include <avr32/io.h> +#include "compiler.h" + +/*! \name Return Values of the GPIO API + */ +//! @{ +#define GPIO_SUCCESS 0 //!< Function successfully completed. +#define GPIO_INVALID_ARGUMENT 1 //!< Input parameters are out of range. +//! @} + + +/*! \name Interrupt Trigger Modes + */ +//! @{ +#define GPIO_PIN_CHANGE 0 //!< Interrupt triggered upon pin change. +#define GPIO_RISING_EDGE 1 //!< Interrupt triggered upon rising edge. +#define GPIO_FALLING_EDGE 2 //!< Interrupt triggered upon falling edge. +//! @} + + +//! A type definition of pins and modules connectivity. +typedef struct +{ + unsigned char pin; //!< Module pin. + unsigned char function; //!< Module function. +} gpio_map_t[]; + + +/*! \name Peripheral Bus Interface + * + * Low-speed interface with a non-deterministic number of clock cycles per + * access. + * + * This interface operates with lower clock frequencies (fPB <= fCPU), and its + * timing is not deterministic since it needs to access a shared bus which may + * be heavily loaded. + * + * \note This interface is immediately available without initialization. + */ +//! @{ + +/*! \brief Enables specific module modes for a set of pins. + * + * \param gpiomap The pin map. + * \param size The number of pins in \a gpiomap. + * + * \return \ref GPIO_SUCCESS or \ref GPIO_INVALID_ARGUMENT. + */ +extern int gpio_enable_module(const gpio_map_t gpiomap, unsigned int size); + +/*! \brief Enables a specific module mode for a pin. + * + * \param pin The pin number.\n + * Refer to the product header file `uc3x.h' (where x is the part + * number; e.g. x = a0512) for module pins. E.g., to enable a PWM + * channel output, the pin number can be AVR32_PWM_3_PIN for PWM + * channel 3. + * \param function The pin function.\n + * Refer to the product header file `uc3x.h' (where x is the + * part number; e.g. x = a0512) for module pin functions. E.g., + * to enable a PWM channel output, the pin function can be + * AVR32_PWM_3_FUNCTION for PWM channel 3. + * + * \return \ref GPIO_SUCCESS or \ref GPIO_INVALID_ARGUMENT. + */ +extern int gpio_enable_module_pin(unsigned int pin, unsigned int function); + +/*! \brief Enables the GPIO mode of a set of pins. + * + * \param gpiomap The pin map. + * \param size The number of pins in \a gpiomap. + */ +extern void gpio_enable_gpio(const gpio_map_t gpiomap, unsigned int size); + +/*! \brief Enables the GPIO mode of a pin. + * + * \param pin The pin number.\n + * Refer to the product header file `uc3x.h' (where x is the part + * number; e.g. x = a0512) for pin definitions. E.g., to enable the + * GPIO mode of PX21, AVR32_PIN_PX21 can be used. Module pins such as + * AVR32_PWM_3_PIN for PWM channel 3 can also be used to release + * module pins for GPIO. + */ +extern void gpio_enable_gpio_pin(unsigned int pin); + +// The open-drain mode is not synthesized on the current AVR32 products. +// If one day some AVR32 products have this feature, the corresponding part +// numbers should be listed in the #if below. +// Note that other functions are available in this driver to use pins with open +// drain in GPIO mode. The advantage of the open-drain mode functions over these +// other functions is that they can be used not only in GPIO mode but also in +// module mode. +#if 0 + +/*! \brief Enables the open-drain mode of a pin. + * + * \param pin The pin number. + */ +extern void gpio_enable_pin_open_drain(unsigned int pin); + +/*! \brief Disables the open-drain mode of a pin. + * + * \param pin The pin number. + */ +extern void gpio_disable_pin_open_drain(unsigned int pin); + +#endif + +/*! \brief Enables the pull-up resistor of a pin. + * + * \param pin The pin number. + */ +extern void gpio_enable_pin_pull_up(unsigned int pin); + +/*! \brief Disables the pull-up resistor of a pin. + * + * \param pin The pin number. + */ +extern void gpio_disable_pin_pull_up(unsigned int pin); + +#if defined(AVR32_GPIO_200_H_INCLUDED) || defined(AVR32_GPIO_210_H_INCLUDED) || defined(AVR32_GPIO_211_H_INCLUDED) +// Added support of Pull-up Resistor, Pull-down Resistor and Buskeeper Control. + +/*! \brief Enables the pull-down resistor of a pin. + * + * \param pin The pin number. + */ +extern void gpio_enable_pin_pull_down(unsigned int pin); + +/*! \brief Disables the pull-down resistor of a pin. + * + * \param pin The pin number. + */ +extern void gpio_disable_pin_pull_down(unsigned int pin); + +/*! \brief Enables the buskeeper functionality on a pin. + * + * \param pin The pin number. + */ +extern void gpio_enable_pin_buskeeper(unsigned int pin); + +/*! \brief Disables the buskeeper functionality on a pin. + * + * \param pin The pin number. + */ +extern void gpio_disable_pin_buskeeper(unsigned int pin); + +#endif + +/*! \brief Returns the value of a pin. + * + * \param pin The pin number. + * + * \return The pin value. + */ +extern int gpio_get_pin_value(unsigned int pin); + +/*! \brief Returns the output value set for a GPIO pin. + * + * \param pin The pin number. + * + * \return The pin output value. + * + * \note This function must be used in conjunction with \ref gpio_set_gpio_pin, + * \ref gpio_clr_gpio_pin and \ref gpio_tgl_gpio_pin. + */ +extern int gpio_get_gpio_pin_output_value(unsigned int pin); + +/*! \brief Returns the output value set for a GPIO pin using open drain. + * + * \param pin The pin number. + * + * \return The pin output value. + * + * \note This function must be used in conjunction with + * \ref gpio_set_gpio_open_drain_pin, \ref gpio_clr_gpio_open_drain_pin + * and \ref gpio_tgl_gpio_open_drain_pin. + */ +extern int gpio_get_gpio_open_drain_pin_output_value(unsigned int pin); + +/*! \brief Drives a GPIO pin to 1. + * + * \param pin The pin number. + */ +extern void gpio_set_gpio_pin(unsigned int pin); + +/*! \brief Drives a GPIO pin to 0. + * + * \param pin The pin number. + */ +extern void gpio_clr_gpio_pin(unsigned int pin); + +/*! \brief Toggles a GPIO pin. + * + * \param pin The pin number. + */ +extern void gpio_tgl_gpio_pin(unsigned int pin); + +/*! \brief Drives a GPIO pin to 1 using open drain. + * + * \param pin The pin number. + */ +extern void gpio_set_gpio_open_drain_pin(unsigned int pin); + +/*! \brief Drives a GPIO pin to 0 using open drain. + * + * \param pin The pin number. + */ +extern void gpio_clr_gpio_open_drain_pin(unsigned int pin); + +/*! \brief Toggles a GPIO pin using open drain. + * + * \param pin The pin number. + */ +extern void gpio_tgl_gpio_open_drain_pin(unsigned int pin); + +/*! \brief Enables the glitch filter of a pin. + * + * When the glitch filter is enabled, a glitch with duration of less than 1 + * clock cycle is automatically rejected, while a pulse with duration of 2 clock + * cycles or more is accepted. For pulse durations between 1 clock cycle and 2 + * clock cycles, the pulse may or may not be taken into account, depending on + * the precise timing of its occurrence. Thus for a pulse to be guaranteed + * visible it must exceed 2 clock cycles, whereas for a glitch to be reliably + * filtered out, its duration must not exceed 1 clock cycle. The filter + * introduces 2 clock cycles latency. + * + * \param pin The pin number. + */ +extern void gpio_enable_pin_glitch_filter(unsigned int pin); + +/*! \brief Disables the glitch filter of a pin. + * + * \param pin The pin number. + */ +extern void gpio_disable_pin_glitch_filter(unsigned int pin); + +/*! \brief Enables the interrupt of a pin with the specified settings. + * + * \param pin The pin number. + * \param mode The trigger mode (\ref GPIO_PIN_CHANGE, \ref GPIO_RISING_EDGE or + * \ref GPIO_FALLING_EDGE). + * + * \return \ref GPIO_SUCCESS or \ref GPIO_INVALID_ARGUMENT. + */ +extern int gpio_enable_pin_interrupt(unsigned int pin, unsigned int mode); + +/*! \brief Disables the interrupt of a pin. + * + * \param pin The pin number. + */ +extern void gpio_disable_pin_interrupt(unsigned int pin); + +/*! \brief Gets the interrupt flag of a pin. + * + * \param pin The pin number. + * + * \return The pin interrupt flag. + */ +extern int gpio_get_pin_interrupt_flag(unsigned int pin); + +/*! \brief Clears the interrupt flag of a pin. + * + * \param pin The pin number. + */ +extern void gpio_clear_pin_interrupt_flag(unsigned int pin); + +//! @} + + +#if (defined AVR32_GPIO_LOCAL_ADDRESS) +/*! \name Local Bus Interface + * + * High-speed interface with only one clock cycle per access. + * + * This interface operates with high clock frequency (fCPU), and its timing is + * deterministic since it does not need to access a shared bus which may be + * heavily loaded. + * + * \warning To use this interface, the clock frequency of the peripheral bus on + * which the GPIO peripheral is connected must be set to the CPU clock + * frequency (fPB = fCPU). + * + * \note This interface has to be initialized in order to be available. + */ +//! @{ + +/*! \brief Enables the local bus interface for GPIO. + * + * \note This function must have been called at least once before using other + * functions in this interface. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void gpio_local_init(void) +{ + Set_system_register(AVR32_CPUCR, + Get_system_register(AVR32_CPUCR) | AVR32_CPUCR_LOCEN_MASK); +} + +/*! \brief Enables the output driver of a pin. + * + * \param pin The pin number. + * + * \note \ref gpio_local_init must have been called beforehand. + * + * \note This function does not enable the GPIO mode of the pin. + * \ref gpio_enable_gpio_pin can be called for this purpose. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void gpio_local_enable_pin_output_driver(unsigned int pin) +{ + AVR32_GPIO_LOCAL.port[pin >> 5].oders = 1 << (pin & 0x1F); +} + +/*! \brief Disables the output driver of a pin. + * + * \param pin The pin number. + * + * \note \ref gpio_local_init must have been called beforehand. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void gpio_local_disable_pin_output_driver(unsigned int pin) +{ + AVR32_GPIO_LOCAL.port[pin >> 5].oderc = 1 << (pin & 0x1F); +} + +/*! \brief Returns the value of a pin. + * + * \param pin The pin number. + * + * \return The pin value. + * + * \note \ref gpio_local_init must have been called beforehand. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ int gpio_local_get_pin_value(unsigned int pin) +{ + return (AVR32_GPIO_LOCAL.port[pin >> 5].pvr >> (pin & 0x1F)) & 1; +} + +/*! \brief Drives a GPIO pin to 1. + * + * \param pin The pin number. + * + * \note \ref gpio_local_init must have been called beforehand. + * + * \note This function does not enable the GPIO mode of the pin nor its output + * driver. \ref gpio_enable_gpio_pin and + * \ref gpio_local_enable_pin_output_driver can be called for this + * purpose. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void gpio_local_set_gpio_pin(unsigned int pin) +{ + AVR32_GPIO_LOCAL.port[pin >> 5].ovrs = 1 << (pin & 0x1F); +} + +/*! \brief Drives a GPIO pin to 0. + * + * \param pin The pin number. + * + * \note \ref gpio_local_init must have been called beforehand. + * + * \note This function does not enable the GPIO mode of the pin nor its output + * driver. \ref gpio_enable_gpio_pin and + * \ref gpio_local_enable_pin_output_driver can be called for this + * purpose. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void gpio_local_clr_gpio_pin(unsigned int pin) +{ + AVR32_GPIO_LOCAL.port[pin >> 5].ovrc = 1 << (pin & 0x1F); +} + +/*! \brief Toggles a GPIO pin. + * + * \param pin The pin number. + * + * \note \ref gpio_local_init must have been called beforehand. + * + * \note This function does not enable the GPIO mode of the pin nor its output + * driver. \ref gpio_enable_gpio_pin and + * \ref gpio_local_enable_pin_output_driver can be called for this + * purpose. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void gpio_local_tgl_gpio_pin(unsigned int pin) +{ + AVR32_GPIO_LOCAL.port[pin >> 5].ovrt = 1 << (pin & 0x1F); +} + +/*! \brief Initializes the configuration of a GPIO pin so that it can be used + * with GPIO open-drain functions. + * + * \note This function must have been called at least once before using + * \ref gpio_local_set_gpio_open_drain_pin, + * \ref gpio_local_clr_gpio_open_drain_pin or + * \ref gpio_local_tgl_gpio_open_drain_pin. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void gpio_local_init_gpio_open_drain_pin(unsigned int pin) +{ + AVR32_GPIO_LOCAL.port[pin >> 5].ovrc = 1 << (pin & 0x1F); +} + +/*! \brief Drives a GPIO pin to 1 using open drain. + * + * \param pin The pin number. + * + * \note \ref gpio_local_init and \ref gpio_local_init_gpio_open_drain_pin must + * have been called beforehand. + * + * \note This function does not enable the GPIO mode of the pin. + * \ref gpio_enable_gpio_pin can be called for this purpose. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void gpio_local_set_gpio_open_drain_pin(unsigned int pin) +{ + AVR32_GPIO_LOCAL.port[pin >> 5].oderc = 1 << (pin & 0x1F); +} + +/*! \brief Drives a GPIO pin to 0 using open drain. + * + * \param pin The pin number. + * + * \note \ref gpio_local_init and \ref gpio_local_init_gpio_open_drain_pin must + * have been called beforehand. + * + * \note This function does not enable the GPIO mode of the pin. + * \ref gpio_enable_gpio_pin can be called for this purpose. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void gpio_local_clr_gpio_open_drain_pin(unsigned int pin) +{ + AVR32_GPIO_LOCAL.port[pin >> 5].oders = 1 << (pin & 0x1F); +} + +/*! \brief Toggles a GPIO pin using open drain. + * + * \param pin The pin number. + * + * \note \ref gpio_local_init and \ref gpio_local_init_gpio_open_drain_pin must + * have been called beforehand. + * + * \note This function does not enable the GPIO mode of the pin. + * \ref gpio_enable_gpio_pin can be called for this purpose. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void gpio_local_tgl_gpio_open_drain_pin(unsigned int pin) +{ + AVR32_GPIO_LOCAL.port[pin >> 5].odert = 1 << (pin & 0x1F); +} + +//! @} +#endif // AVR32_GPIO_LOCAL_ADDRESS + +#if UC3L +//! @{ +/*! \name Peripheral Event System support + * + * The GPIO can be programmed to output peripheral events whenever an interrupt + * condition is detected, such as pin value change, or only when a rising or + * falling edge is detected. + * + */ + +/*! \brief Enables the peripheral event generation of a pin. + * + * \param pin The pin number. + * + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void gpio_enable_pin_periph_event(unsigned int pin) +{ + AVR32_GPIO.port[pin >> 5].oderc = 1 << (pin & 0x1F); // The GPIO output driver is disabled for that pin. + AVR32_GPIO.port[pin >> 5].evers = 1 << (pin & 0x1F); +} + +/*! \brief Disables the peripheral event generation of a pin. + * + * \param pin The pin number. + * + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void gpio_disable_pin_periph_event(unsigned int pin) +{ + AVR32_GPIO.port[pin >> 5].everc = 1 << (pin & 0x1F); +} + +/*! \brief Configure the peripheral event trigger mode of a pin + * + * \param pin The pin number. + * \param mode The trigger mode (\ref GPIO_PIN_CHANGE, \ref GPIO_RISING_EDGE or + * \ref GPIO_FALLING_EDGE). + * \param use_igf use the Input Glitch Filter (TRUE) or not (FALSE). + * + * \return \ref GPIO_SUCCESS or \ref GPIO_INVALID_ARGUMENT. + */ +extern int gpio_configure_pin_periph_event_mode(unsigned int pin, unsigned int mode, unsigned int use_igf); + +//! @} +#endif + + +#endif // _GPIO_H_ diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/INTC/exception.x b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/INTC/exception.x new file mode 100644 index 0000000..ec4109d --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/INTC/exception.x @@ -0,0 +1,239 @@ +/* This file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file is prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief Exception and interrupt vectors. + * + * This file maps all events supported by an AVR32. + * + * - Compiler: GNU GCC for AVR32 + * - Supported devices: All AVR32 devices with an INTC module can be used. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + ******************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#if !__AVR32_UC__ && !__AVR32_AP__ + #error Implementation of the AVR32 architecture not supported by the INTC driver. +#endif + + +#include <avr32/io.h> + + +//! @{ +//! \verbatim + + + .section .exception, "ax", @progbits + + +// Start of Exception Vector Table. + + // EVBA must be aligned with a power of two strictly greater than the EVBA- + // relative offset of the last vector. + .balign 0x200 + + // Export symbol. + .global _evba + .type _evba, @function +_evba: + + .org 0x000 + // Unrecoverable Exception. +_handle_Unrecoverable_Exception: + rjmp $ + + .org 0x004 + // TLB Multiple Hit. +_handle_TLB_Multiple_Hit: + rjmp $ + + .org 0x008 + // Bus Error Data Fetch. +_handle_Bus_Error_Data_Fetch: + rjmp $ + + .org 0x00C + // Bus Error Instruction Fetch. +_handle_Bus_Error_Instruction_Fetch: + rjmp $ + + .org 0x010 + // NMI. +_handle_NMI: + rjmp $ + + .org 0x014 + // Instruction Address. +_handle_Instruction_Address: + rjmp $ + + .org 0x018 + // ITLB Protection. +_handle_ITLB_Protection: + rjmp $ + + .org 0x01C + // Breakpoint. +_handle_Breakpoint: + rjmp $ + + .org 0x020 + // Illegal Opcode. +_handle_Illegal_Opcode: + rjmp $ + + .org 0x024 + // Unimplemented Instruction. +_handle_Unimplemented_Instruction: + rjmp $ + + .org 0x028 + // Privilege Violation. +_handle_Privilege_Violation: + rjmp $ + + .org 0x02C + // Floating-Point: UNUSED IN AVR32UC and AVR32AP. +_handle_Floating_Point: + rjmp $ + + .org 0x030 + // Coprocessor Absent: UNUSED IN AVR32UC. +_handle_Coprocessor_Absent: + rjmp $ + + .org 0x034 + // Data Address (Read). +_handle_Data_Address_Read: + rjmp $ + + .org 0x038 + // Data Address (Write). +_handle_Data_Address_Write: + rjmp $ + + .org 0x03C + // DTLB Protection (Read). +_handle_DTLB_Protection_Read: + rjmp $ + + .org 0x040 + // DTLB Protection (Write). +_handle_DTLB_Protection_Write: + rjmp $ + + .org 0x044 + // DTLB Modified: UNUSED IN AVR32UC. +_handle_DTLB_Modified: + rjmp $ + + .org 0x050 + // ITLB Miss. +_handle_ITLB_Miss: + rjmp $ + + .org 0x060 + // DTLB Miss (Read). +_handle_DTLB_Miss_Read: + rjmp $ + + .org 0x070 + // DTLB Miss (Write). +_handle_DTLB_Miss_Write: + rjmp $ + + .org 0x100 + // Supervisor Call. +_handle_Supervisor_Call: + rjmp $ + + +// Interrupt support. +// The interrupt controller must provide the offset address relative to EVBA. +// Important note: +// All interrupts call a C function named _get_interrupt_handler. +// This function will read group and interrupt line number to then return in +// R12 a pointer to a user-provided interrupt handler. + + .balign 4 + + .irp priority, 0, 1, 2, 3 +_int\priority: +#if __AVR32_UC__ + // R8-R12, LR, PC and SR are automatically pushed onto the system stack by the + // CPU upon interrupt entry. No other register is saved by hardware. +#elif __AVR32_AP__ + // PC and SR are automatically saved in respectively RAR_INTx and RSR_INTx by + // the CPU upon interrupt entry. No other register is saved by hardware. + pushm r8-r12, lr +#endif + mov r12, \priority // Pass the int_level parameter to the _get_interrupt_handler function. + call _get_interrupt_handler + cp.w r12, 0 // Get the pointer to the interrupt handler returned by the function. +#if __AVR32_UC__ + movne pc, r12 // If this was not a spurious interrupt (R12 != NULL), jump to the handler. +#elif __AVR32_AP__ + breq spint\priority // If this was a spurious interrupt (R12 == NULL), branch. + st.w --sp, r12 // Push the pointer to the interrupt handler onto the system stack since no register may be altered. + popm r8-r12, lr, pc // Restore registers and jump to the handler. +spint\priority: + popm r8-r12, lr +#endif + rete // If this was a spurious interrupt (R12 == NULL), return from event handler. + .endr + + +// Constant data area. + + .balign 4 + + // Values to store in the interrupt priority registers for the various interrupt priority levels. + // The interrupt priority registers contain the interrupt priority level and + // the EVBA-relative interrupt vector offset. + .global ipr_val + .type ipr_val, @object +ipr_val: + .word (AVR32_INTC_INT0 << AVR32_INTC_IPR_INTLEVEL_OFFSET) | (_int0 - _evba),\ + (AVR32_INTC_INT1 << AVR32_INTC_IPR_INTLEVEL_OFFSET) | (_int1 - _evba),\ + (AVR32_INTC_INT2 << AVR32_INTC_IPR_INTLEVEL_OFFSET) | (_int2 - _evba),\ + (AVR32_INTC_INT3 << AVR32_INTC_IPR_INTLEVEL_OFFSET) | (_int3 - _evba) + + +//! \endverbatim +//! @} diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/INTC/intc.c b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/INTC/intc.c new file mode 100644 index 0000000..84d498d --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/INTC/intc.c @@ -0,0 +1,214 @@ +/* This source file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file is prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief INTC driver for AVR32 UC3. + * + * AVR32 Interrupt Controller driver module. + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices with an INTC module can be used. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + ******************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#include <avr32/io.h> +#include "compiler.h" +#include "preprocessor.h" +#include "intc.h" + +// define _evba from exception.S +extern void _evba; + +//! Values to store in the interrupt priority registers for the various interrupt priority levels. +extern const unsigned int ipr_val[AVR32_INTC_NUM_INT_LEVELS]; + +//! Creates a table of interrupt line handlers per interrupt group in order to optimize RAM space. +//! Each line handler table contains a set of pointers to interrupt handlers. +#if (defined __GNUC__) +#define DECL_INT_LINE_HANDLER_TABLE(GRP, unused) \ +static volatile __int_handler _int_line_handler_table_##GRP[Max(AVR32_INTC_NUM_IRQS_PER_GRP##GRP, 1)]; +#elif (defined __ICCAVR32__) +#define DECL_INT_LINE_HANDLER_TABLE(GRP, unused) \ +static volatile __no_init __int_handler _int_line_handler_table_##GRP[Max(AVR32_INTC_NUM_IRQS_PER_GRP##GRP, 1)]; +#endif +MREPEAT(AVR32_INTC_NUM_INT_GRPS, DECL_INT_LINE_HANDLER_TABLE, ~); +#undef DECL_INT_LINE_HANDLER_TABLE + +//! Table containing for each interrupt group the number of interrupt request +//! lines and a pointer to the table of interrupt line handlers. +static const struct +{ + unsigned int num_irqs; + volatile __int_handler *_int_line_handler_table; +} _int_handler_table[AVR32_INTC_NUM_INT_GRPS] = +{ +#define INSERT_INT_LINE_HANDLER_TABLE(GRP, unused) \ + {AVR32_INTC_NUM_IRQS_PER_GRP##GRP, _int_line_handler_table_##GRP}, + MREPEAT(AVR32_INTC_NUM_INT_GRPS, INSERT_INT_LINE_HANDLER_TABLE, ~) +#undef INSERT_INT_LINE_HANDLER_TABLE +}; + + +/*! \brief Default interrupt handler. + * + * \note Taken and adapted from Newlib. + */ +#if (defined __GNUC__) +__attribute__((__interrupt__)) +#elif (defined __ICCAVR32__) +__interrupt +#endif +static void _unhandled_interrupt(void) +{ + // Catch unregistered interrupts. + while (TRUE); +} + + +/*! \brief Gets the interrupt handler of the current event at the \a int_level + * interrupt priority level (called from exception.S). + * + * \param int_level Interrupt priority level to handle. + * + * \return Interrupt handler to execute. + * + * \note Taken and adapted from Newlib. + */ +__int_handler _get_interrupt_handler(unsigned int int_level) +{ + // ICR3 is mapped first, ICR0 last. + // Code in exception.S puts int_level in R12 which is used by AVR32-GCC to + // pass a single argument to a function. + unsigned int int_grp = AVR32_INTC.icr[AVR32_INTC_INT3 - int_level]; + unsigned int int_req = AVR32_INTC.irr[int_grp]; + + // As an interrupt may disappear while it is being fetched by the CPU + // (spurious interrupt caused by a delayed response from an MCU peripheral to + // an interrupt flag clear or interrupt disable instruction), check if there + // are remaining interrupt lines to process. + // If a spurious interrupt occurs, the status register (SR) contains an + // execution mode and interrupt level masks corresponding to a level 0 + // interrupt, whatever the interrupt priority level causing the spurious + // event. This behavior has been chosen because a spurious interrupt has not + // to be a priority one and because it may not cause any trouble to other + // interrupts. + // However, these spurious interrupts place the hardware in an unstable state + // and could give problems in other/future versions of the CPU, so the + // software has to be written so that they never occur. The only safe way of + // achieving this is to always clear or disable peripheral interrupts with the + // following sequence: + // 1: Mask the interrupt in the CPU by setting GM (or IxM) in SR. + // 2: Perform the bus access to the peripheral register that clears or + // disables the interrupt. + // 3: Wait until the interrupt has actually been cleared or disabled by the + // peripheral. This is usually performed by reading from a register in the + // same peripheral (it DOES NOT have to be the same register that was + // accessed in step 2, but it MUST be in the same peripheral), what takes + // bus system latencies into account, but peripheral internal latencies + // (generally 0 cycle) also have to be considered. + // 4: Unmask the interrupt in the CPU by clearing GM (or IxM) in SR. + // Note that steps 1 and 4 are useless inside interrupt handlers as the + // corresponding interrupt level is automatically masked by IxM (unless IxM is + // explicitly cleared by the software). + // + // Get the right IRQ handler. + // + // If several interrupt lines are active in the group, the interrupt line with + // the highest number is selected. This is to be coherent with the + // prioritization of interrupt groups performed by the hardware interrupt + // controller. + // + // If no handler has been registered for the pending interrupt, + // _unhandled_interrupt will be selected thanks to the initialization of + // _int_line_handler_table_x by INTC_init_interrupts. + // + // exception.S will provide the interrupt handler with a clean interrupt stack + // frame, with nothing more pushed onto the stack. The interrupt handler must + // manage the `rete' instruction, what can be done thanks to pure assembly, + // inline assembly or the `__attribute__((__interrupt__))' C function + // attribute. + return (int_req) ? _int_handler_table[int_grp]._int_line_handler_table[32 - clz(int_req) - 1] : NULL; +} + +//! Init EVBA address. This sequence might also be done in the UTILS/STARTUP/GCC/crt0.S +static __inline__ void INTC_init_evba(void) +{ + Set_system_register(AVR32_EVBA, (int)&_evba ); +} + +void INTC_init_interrupts(void) +{ + unsigned int int_grp, int_req; + + INTC_init_evba(); + + // For all interrupt groups, + for (int_grp = 0; int_grp < AVR32_INTC_NUM_INT_GRPS; int_grp++) + { + // For all interrupt request lines of each group, + for (int_req = 0; int_req < _int_handler_table[int_grp].num_irqs; int_req++) + { + // Assign _unhandled_interrupt as default interrupt handler. + _int_handler_table[int_grp]._int_line_handler_table[int_req] = &_unhandled_interrupt; + } + + // Set the interrupt group priority register to its default value. + // By default, all interrupt groups are linked to the interrupt priority + // level 0 and to the interrupt vector _int0. + AVR32_INTC.ipr[int_grp] = ipr_val[AVR32_INTC_INT0]; + } +} + + +void INTC_register_interrupt(__int_handler handler, unsigned int irq, unsigned int int_level) +{ + // Determine the group of the IRQ. + unsigned int int_grp = irq / AVR32_INTC_MAX_NUM_IRQS_PER_GRP; + + // Store in _int_line_handler_table_x the pointer to the interrupt handler, so + // that _get_interrupt_handler can retrieve it when the interrupt is vectored. + _int_handler_table[int_grp]._int_line_handler_table[irq % AVR32_INTC_MAX_NUM_IRQS_PER_GRP] = handler; + + // Program the corresponding IPRX register to set the interrupt priority level + // and the interrupt vector offset that will be fetched by the core interrupt + // system. + // NOTE: The _intx functions are intermediate assembly functions between the + // core interrupt system and the user interrupt handler. + AVR32_INTC.ipr[int_grp] = ipr_val[int_level & (AVR32_INTC_IPR_INTLEVEL_MASK >> AVR32_INTC_IPR_INTLEVEL_OFFSET)]; +} diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/INTC/intc.h b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/INTC/intc.h new file mode 100644 index 0000000..31a4fc1 --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/INTC/intc.h @@ -0,0 +1,100 @@ +/* This header file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file is prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief INTC driver for AVR32 UC3. + * + * AVR32 Interrupt Controller driver module. + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices with an INTC module can be used. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + ******************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#ifndef _INTC_H_ +#define _INTC_H_ + +#include "compiler.h" + + +//! Maximal number of interrupt request lines per group. +#define AVR32_INTC_MAX_NUM_IRQS_PER_GRP 32 + +//! Number of interrupt priority levels. +#define AVR32_INTC_NUM_INT_LEVELS (1 << AVR32_INTC_IPR_INTLEVEL_SIZE) + + +#ifdef __AVR32_ABI_COMPILER__ // Automatically defined when compiling for AVR32, not when assembling. + +//! Pointer to interrupt handler. +#if (defined __GNUC__) +typedef void (*__int_handler)(void); +#elif (defined __ICCAVR32__) +typedef void (__interrupt *__int_handler)(void); +#endif + + +/*! \brief Initializes the hardware interrupt controller driver. + * + * \note Taken and adapted from Newlib. + */ +extern void INTC_init_interrupts(void); + +/*! \brief Registers an interrupt handler. + * + * \param handler Interrupt handler to register. + * \param irq IRQ of the interrupt handler to register. + * \param int_level Interrupt priority level to assign to the group of this IRQ. + * + * \warning The interrupt handler must manage the `rete' instruction, what can + * be done thanks to pure assembly, inline assembly or the + * `__attribute__((__interrupt__))' C function attribute. + * + * \warning If several interrupt handlers of a same group are registered with + * different priority levels, only the latest priority level set will + * be effective. + * + * \note Taken and adapted from Newlib. + */ +extern void INTC_register_interrupt(__int_handler handler, unsigned int irq, unsigned int int_level); + +#endif // __AVR32_ABI_COMPILER__ + + +#endif // _INTC_H_ diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/PDCA/pdca.c b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/PDCA/pdca.c new file mode 100644 index 0000000..6c00f9e --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/PDCA/pdca.c @@ -0,0 +1,296 @@ +/* This source file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file is prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief PDCA driver for AVR32 UC3. + * + * This file defines a useful set of functions for the PDCA interface on AVR32 + * devices. + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices with a PDCA module. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + ******************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#include "compiler.h" +#include "pdca.h" + + +volatile avr32_pdca_channel_t *pdca_get_handler(unsigned int pdca_ch_number) +{ + // get the correct channel pointer + volatile avr32_pdca_channel_t *pdca_channel = &AVR32_PDCA.channel[pdca_ch_number]; + + if (pdca_ch_number >= AVR32_PDCA_CHANNEL_LENGTH) + return (volatile avr32_pdca_channel_t *)PDCA_INVALID_ARGUMENT; + + return pdca_channel; +} + + +int pdca_init_channel(unsigned int pdca_ch_number, const pdca_channel_options_t *opt) +{ + // get the correct channel pointer + volatile avr32_pdca_channel_t *pdca_channel = pdca_get_handler(pdca_ch_number); + + pdca_disable_interrupt_transfer_complete(pdca_ch_number); // disable channel interrupt + pdca_disable_interrupt_reload_counter_zero(pdca_ch_number); // disable channel interrupt + + Bool global_interrupt_enabled = Is_global_interrupt_enabled(); + + if (global_interrupt_enabled) Disable_global_interrupt(); + pdca_channel->mar = (unsigned long)opt->addr; + pdca_channel->tcr = opt->size; + pdca_channel->psr = opt->pid; + pdca_channel->marr = (unsigned long)opt->r_addr; + pdca_channel->tcrr = opt->r_size; + pdca_channel->mr = +#if (defined AVR32_PDCA_120_H_INCLUDED ) || (defined AVR32_PDCA_121_H_INCLUDED ) || (defined AVR32_PDCA_122_H_INCLUDED ) +opt->etrig << AVR32_PDCA_ETRIG_OFFSET | +#endif // #ifdef AVR32_PDCA_120_H_INCLUDED + opt->transfer_size << AVR32_PDCA_SIZE_OFFSET; + pdca_channel->cr = AVR32_PDCA_ECLR_MASK; + pdca_channel->isr; + if (global_interrupt_enabled) Enable_global_interrupt(); + + return PDCA_SUCCESS; +} + + +unsigned int pdca_get_channel_status(unsigned int pdca_ch_number) +{ + // get the correct channel pointer + volatile avr32_pdca_channel_t *pdca_channel = pdca_get_handler(pdca_ch_number); + + return (pdca_channel->sr & AVR32_PDCA_TEN_MASK) != 0; +} + + +void pdca_disable(unsigned int pdca_ch_number) +{ + // get the correct channel pointer + volatile avr32_pdca_channel_t *pdca_channel = pdca_get_handler(pdca_ch_number); + + // Disable transfer + pdca_channel->cr = AVR32_PDCA_TDIS_MASK; + +} + + +void pdca_enable(unsigned int pdca_ch_number) +{ + // get the correct channel pointer + volatile avr32_pdca_channel_t *pdca_channel = pdca_get_handler(pdca_ch_number); + + // Enable transfer + pdca_channel->cr = AVR32_PDCA_TEN_MASK; +} + + +unsigned int pdca_get_load_size(unsigned int pdca_ch_number) +{ + // get the correct channel pointer + volatile avr32_pdca_channel_t *pdca_channel = pdca_get_handler(pdca_ch_number); + + return pdca_channel->tcr; +} + + +void pdca_load_channel(unsigned int pdca_ch_number, volatile void *addr, unsigned int size) +{ + // get the correct channel pointer + volatile avr32_pdca_channel_t *pdca_channel = pdca_get_handler(pdca_ch_number); + + Bool global_interrupt_enabled = Is_global_interrupt_enabled(); + + if (global_interrupt_enabled) Disable_global_interrupt(); + pdca_channel->mar = (unsigned long)addr; + pdca_channel->tcr = size; + pdca_channel->cr = AVR32_PDCA_ECLR_MASK; + pdca_channel->isr; + if (global_interrupt_enabled) Enable_global_interrupt(); +} + + +unsigned int pdca_get_reload_size(unsigned int pdca_ch_number) +{ + // get the correct channel pointer + volatile avr32_pdca_channel_t *pdca_channel = pdca_get_handler(pdca_ch_number); + + return pdca_channel->tcrr; +} + + +void pdca_reload_channel(unsigned int pdca_ch_number, volatile void *addr, unsigned int size) +{ + // get the correct channel pointer + volatile avr32_pdca_channel_t *pdca_channel = pdca_get_handler(pdca_ch_number); + + Bool global_interrupt_enabled = Is_global_interrupt_enabled(); + + if (global_interrupt_enabled) Disable_global_interrupt(); + // set up next memory address + pdca_channel->marr = (unsigned long)addr; + // set up next memory size + pdca_channel->tcrr = size; + pdca_channel->cr = AVR32_PDCA_ECLR_MASK; + pdca_channel->isr; + if (global_interrupt_enabled) Enable_global_interrupt(); +} + + +void pdca_set_peripheral_select(unsigned int pdca_ch_number, unsigned int pid) +{ + // get the correct channel pointer + volatile avr32_pdca_channel_t *pdca_channel = pdca_get_handler(pdca_ch_number); + + pdca_channel->psr = pid; +} + + +void pdca_set_transfer_size(unsigned int pdca_ch_number, unsigned int transfer_size) +{ + // get the correct channel pointer + volatile avr32_pdca_channel_t *pdca_channel = pdca_get_handler(pdca_ch_number); + + pdca_channel->mr = (pdca_channel->mr & ~AVR32_PDCA_SIZE_MASK) | + transfer_size << AVR32_PDCA_SIZE_OFFSET; +} + + +#if (defined AVR32_PDCA_120_H_INCLUDED ) || (defined AVR32_PDCA_121_H_INCLUDED ) || (defined AVR32_PDCA_122_H_INCLUDED ) + + +void pdca_disable_event_trigger(unsigned int pdca_ch_number) +{ + // get the correct channel pointer + volatile avr32_pdca_channel_t *pdca_channel = pdca_get_handler(pdca_ch_number); + + pdca_channel->mr &= ~AVR32_PDCA_ETRIG_MASK; +} + + +void pdca_enable_event_trigger(unsigned int pdca_ch_number) +{ + // get the correct channel pointer + volatile avr32_pdca_channel_t *pdca_channel = pdca_get_handler(pdca_ch_number); + + pdca_channel->mr |= AVR32_PDCA_ETRIG_MASK; +} + + +#endif // #ifdef AVR32_PDCA_120_H_INCLUDED + + +void pdca_disable_interrupt_transfer_error(unsigned int pdca_ch_number) +{ + // get the correct channel pointer + volatile avr32_pdca_channel_t *pdca_channel = pdca_get_handler(pdca_ch_number); + + Bool global_interrupt_enabled = Is_global_interrupt_enabled(); + + if (global_interrupt_enabled) Disable_global_interrupt(); + pdca_channel->idr = AVR32_PDCA_TERR_MASK; + pdca_channel->isr; + if (global_interrupt_enabled) Enable_global_interrupt(); +} + + +void pdca_enable_interrupt_transfer_error(unsigned int pdca_ch_number) +{ + // get the correct channel pointer + volatile avr32_pdca_channel_t *pdca_channel = pdca_get_handler(pdca_ch_number); + + pdca_channel->ier = AVR32_PDCA_TERR_MASK; +} + + +void pdca_disable_interrupt_transfer_complete(unsigned int pdca_ch_number) +{ + // get the correct channel pointer + volatile avr32_pdca_channel_t *pdca_channel = pdca_get_handler(pdca_ch_number); + + Bool global_interrupt_enabled = Is_global_interrupt_enabled(); + + if (global_interrupt_enabled) Disable_global_interrupt(); + pdca_channel->idr = AVR32_PDCA_TRC_MASK; + pdca_channel->isr; + if (global_interrupt_enabled) Enable_global_interrupt(); +} + + +void pdca_enable_interrupt_transfer_complete(unsigned int pdca_ch_number) +{ + // get the correct channel pointer + volatile avr32_pdca_channel_t *pdca_channel = pdca_get_handler(pdca_ch_number); + + pdca_channel->ier = AVR32_PDCA_TRC_MASK; +} + + +void pdca_disable_interrupt_reload_counter_zero(unsigned int pdca_ch_number) +{ + // get the correct channel pointer + volatile avr32_pdca_channel_t *pdca_channel = pdca_get_handler(pdca_ch_number); + + Bool global_interrupt_enabled = Is_global_interrupt_enabled(); + + if (global_interrupt_enabled) Disable_global_interrupt(); + pdca_channel->idr = AVR32_PDCA_RCZ_MASK; + pdca_channel->isr; + if (global_interrupt_enabled) Enable_global_interrupt(); +} + + +void pdca_enable_interrupt_reload_counter_zero(unsigned int pdca_ch_number) +{ + // get the correct channel pointer + volatile avr32_pdca_channel_t *pdca_channel = pdca_get_handler(pdca_ch_number); + + pdca_channel->ier = AVR32_PDCA_RCZ_MASK; +} + + +unsigned long pdca_get_transfer_status(unsigned int pdca_ch_number) +{ + // get the correct channel pointer + volatile avr32_pdca_channel_t *pdca_channel = pdca_get_handler(pdca_ch_number); + + return pdca_channel->isr; +} diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/PDCA/pdca.h b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/PDCA/pdca.h new file mode 100644 index 0000000..5668fe9 --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/PDCA/pdca.h @@ -0,0 +1,251 @@ +/* This header file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file is prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief PDCA driver for AVR32 UC3. + * + * This file defines a useful set of functions for the PDCA interface on AVR32 + * devices. + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices with a PDCA module. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + ******************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#ifndef _PDCA_H_ +#define _PDCA_H_ + +#include <avr32/io.h> + + +//! Size of PDCA transfer: byte. +#define PDCA_TRANSFER_SIZE_BYTE AVR32_PDCA_BYTE + +//! Size of PDCA transfer: half-word. +#define PDCA_TRANSFER_SIZE_HALF_WORD AVR32_PDCA_HALF_WORD + +//! Size of PDCA transfer: word. +#define PDCA_TRANSFER_SIZE_WORD AVR32_PDCA_WORD + +/*! \name PDCA Driver Status Codes + */ +//! @{ +#define PDCA_SUCCESS 0 +#define PDCA_INVALID_ARGUMENT -1 +//! @} + +/*! \name PDCA Transfer Status Codes + */ +//! @{ +#define PDCA_TRANSFER_ERROR AVR32_PDCA_TERR_MASK +#define PDCA_TRANSFER_COMPLETE AVR32_PDCA_TRC_MASK +#define PDCA_TRANSFER_COUNTER_RELOAD_IS_ZERO AVR32_PDCA_RCZ_MASK +//! @} + + +//! PDCA channel options. +typedef struct +{ + //! Memory address. + volatile void *addr ; + //! Transfer counter. + unsigned int size ; + //! Next memory address. + volatile void *r_addr ; + //! Next transfer counter. + unsigned int r_size ; + //! Select peripheral ID. + unsigned int pid ; + //! Select the size of the transfer (byte, half-word or word). + unsigned int transfer_size ; +#if (defined AVR32_PDCA_120_H_INCLUDED ) || (defined AVR32_PDCA_121_H_INCLUDED ) || (defined AVR32_PDCA_122_H_INCLUDED ) +// Note: the options in this preprocessor section are only available from the PDCA IP version 1.2.0 on. + //! Enable (\c 1) or disable (\c 0) the transfer upon event trigger. + unsigned char etrig ; +#endif // #ifdef AVR32_PDCA_120_H_INCLUDED +} pdca_channel_options_t; + + +/*! \brief Get PDCA channel handler + * + * \param pdca_ch_number PDCA channel + * + * \return channel handled or PDCA_INVALID_ARGUMENT + */ +extern volatile avr32_pdca_channel_t *pdca_get_handler(unsigned int pdca_ch_number); + +/*! \brief Set the channel configuration + * + * \param pdca_ch_number PDCA channel + * \param opt channel option + */ +extern int pdca_init_channel(unsigned int pdca_ch_number, const pdca_channel_options_t *opt); + +/*! \brief Get the PDCA channel transfer enable status + * + * \param pdca_ch_number PDCA channel + * + * \return \c 1 if channel transfer is enabled, else \c 0 + */ +extern unsigned int pdca_get_channel_status(unsigned int pdca_ch_number); + +/*! \brief Disable the PDCA for the given channel + * + * \param pdca_ch_number PDCA channel + */ +extern void pdca_disable(unsigned int pdca_ch_number); + +/*! \brief Enable the PDCA for the given channel + * + * \param pdca_ch_number PDCA channel + */ +extern void pdca_enable(unsigned int pdca_ch_number); + +/*! \brief Get PDCA channel load size (or remaining size if transfer started) + * + * \param pdca_ch_number PDCA channel + * + * \return size current size to transfer + */ +extern unsigned int pdca_get_load_size(unsigned int pdca_ch_number); + +/*! \brief Set PDCA channel load values + * + * \param pdca_ch_number PDCA channel + * \param addr address where data to load are stored + * \param size size of the data block to load + */ +extern void pdca_load_channel(unsigned int pdca_ch_number, volatile void *addr, unsigned int size); + +/*! \brief Get PDCA channel reload size + * + * \param pdca_ch_number PDCA channel + * + * \return size current reload size + */ +extern unsigned int pdca_get_reload_size(unsigned int pdca_ch_number); + +/*! \brief Set PDCA channel reload values + * + * \param pdca_ch_number PDCA channel + * \param addr address where data to load are stored + * \param size size of the data block to load + */ +extern void pdca_reload_channel(unsigned int pdca_ch_number, volatile void *addr, unsigned int size); + +/*! \brief Set the peripheral function to use with the PDCA channel + * + * \param pdca_ch_number PDCA channel + * \param pid the peripheral ID + */ +extern void pdca_set_peripheral_select(unsigned int pdca_ch_number, unsigned int pid); + +/*! \brief Set the size of the transfer + * + * \param pdca_ch_number PDCA channel + * \param transfer_size size of the transfer (byte, half-word or word) + */ +extern void pdca_set_transfer_size(unsigned int pdca_ch_number, unsigned int transfer_size); + +#if (defined AVR32_PDCA_120_H_INCLUDED ) || (defined AVR32_PDCA_121_H_INCLUDED ) || (defined AVR32_PDCA_122_H_INCLUDED ) +// Note: the functions in this preprocessor section are only available from the PDCA IP version 1.2.0 on. + +/*! \brief Disable the event-triggered transfer feature + * + * \param pdca_ch_number PDCA channel + */ +extern void pdca_disable_event_trigger(unsigned int pdca_ch_number); + +/*! \brief Enable the event-triggered transfer feature + * + * \param pdca_ch_number PDCA channel + */ +extern void pdca_enable_event_trigger(unsigned int pdca_ch_number); + +#endif // #ifdef AVR32_PDCA_120_H_INCLUDED + +/*! \brief Disable PDCA transfer error interrupt + * + * \param pdca_ch_number PDCA channel + */ +extern void pdca_disable_interrupt_transfer_error(unsigned int pdca_ch_number); + +/*! \brief Enable PDCA transfer error interrupt + * + * \param pdca_ch_number PDCA channel + */ +extern void pdca_enable_interrupt_transfer_error(unsigned int pdca_ch_number); + +/*! \brief Disable PDCA transfer interrupt when completed (ie TCR and TCRR are both zero) + * + * \param pdca_ch_number PDCA channel + */ +extern void pdca_disable_interrupt_transfer_complete(unsigned int pdca_ch_number); + +/*! \brief Enable PDCA transfer interrupt when completed (ie TCR and TCRR are both zero) + * + * \param pdca_ch_number PDCA channel + */ +extern void pdca_enable_interrupt_transfer_complete(unsigned int pdca_ch_number); + +/*! \brief Disable PDCA transfer interrupt when TCRR reaches zero + * + * \param pdca_ch_number PDCA channel + */ +extern void pdca_disable_interrupt_reload_counter_zero(unsigned int pdca_ch_number); + +/*! \brief Enable PDCA transfer interrupt when TCRR reaches zero + * + * \param pdca_ch_number PDCA channel + */ +extern void pdca_enable_interrupt_reload_counter_zero(unsigned int pdca_ch_number); + +/*! \brief Get PDCA channel transfer status + * + * \param pdca_ch_number PDCA channel + * + * \return PDCA transfer status with the following bit-masks:\n + * - \c PDCA_TRANSFER_ERROR;\n + * - \c PDCA_TRANSFER_COMPLETE;\n + * - \c PDCA_TRANSFER_COUNTER_RELOAD_IS_ZERO. + */ +extern unsigned long pdca_get_transfer_status(unsigned int pdca_ch_number); + + +#endif // _PDCA_H_ diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/PM/pm.c b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/PM/pm.c new file mode 100644 index 0000000..76d9268 --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/PM/pm.c @@ -0,0 +1,546 @@ +/* This source file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file has been prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief Power Manager driver. + * + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + *****************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#include "compiler.h" +#include "pm.h" + + +/*! \name PM Writable Bit-Field Registers + */ +//! @{ + +typedef union +{ + unsigned long mcctrl; + avr32_pm_mcctrl_t MCCTRL; +} u_avr32_pm_mcctrl_t; + +typedef union +{ + unsigned long cksel; + avr32_pm_cksel_t CKSEL; +} u_avr32_pm_cksel_t; + +typedef union +{ + unsigned long pll; + avr32_pm_pll_t PLL; +} u_avr32_pm_pll_t; + +typedef union +{ + unsigned long oscctrl0; + avr32_pm_oscctrl0_t OSCCTRL0; +} u_avr32_pm_oscctrl0_t; + +typedef union +{ + unsigned long oscctrl1; + avr32_pm_oscctrl1_t OSCCTRL1; +} u_avr32_pm_oscctrl1_t; + +typedef union +{ + unsigned long oscctrl32; + avr32_pm_oscctrl32_t OSCCTRL32; +} u_avr32_pm_oscctrl32_t; + +typedef union +{ + unsigned long ier; + avr32_pm_ier_t IER; +} u_avr32_pm_ier_t; + +typedef union +{ + unsigned long idr; + avr32_pm_idr_t IDR; +} u_avr32_pm_idr_t; + +typedef union +{ + unsigned long icr; + avr32_pm_icr_t ICR; +} u_avr32_pm_icr_t; + +typedef union +{ + unsigned long gcctrl; + avr32_pm_gcctrl_t GCCTRL; +} u_avr32_pm_gcctrl_t; + +typedef union +{ + unsigned long rccr; + avr32_pm_rccr_t RCCR; +} u_avr32_pm_rccr_t; + +typedef union +{ + unsigned long bgcr; + avr32_pm_bgcr_t BGCR; +} u_avr32_pm_bgcr_t; + +typedef union +{ + unsigned long vregcr; + avr32_pm_vregcr_t VREGCR; +} u_avr32_pm_vregcr_t; + +typedef union +{ + unsigned long bod; + avr32_pm_bod_t BOD; +} u_avr32_pm_bod_t; + +//! @} + + +/*! \brief Sets the mode of the oscillator 0. + * + * \param pm Base address of the Power Manager (i.e. &AVR32_PM). + * \param mode Oscillator 0 mode (i.e. AVR32_PM_OSCCTRL0_MODE_x). + */ +static void pm_set_osc0_mode(volatile avr32_pm_t *pm, unsigned int mode) +{ + // Read + u_avr32_pm_oscctrl0_t u_avr32_pm_oscctrl0 = {pm->oscctrl0}; + // Modify + u_avr32_pm_oscctrl0.OSCCTRL0.mode = mode; + // Write + pm->oscctrl0 = u_avr32_pm_oscctrl0.oscctrl0; +} + + +void pm_enable_osc0_ext_clock(volatile avr32_pm_t *pm) +{ + pm_set_osc0_mode(pm, AVR32_PM_OSCCTRL0_MODE_EXT_CLOCK); +} + + +void pm_enable_osc0_crystal(volatile avr32_pm_t *pm, unsigned int fosc0) +{ + pm_set_osc0_mode(pm, (fosc0 < 900000) ? AVR32_PM_OSCCTRL0_MODE_CRYSTAL_G0 : + (fosc0 < 3000000) ? AVR32_PM_OSCCTRL0_MODE_CRYSTAL_G1 : + (fosc0 < 8000000) ? AVR32_PM_OSCCTRL0_MODE_CRYSTAL_G2 : + AVR32_PM_OSCCTRL0_MODE_CRYSTAL_G3); +} + + +void pm_enable_clk0(volatile avr32_pm_t *pm, unsigned int startup) +{ + pm_enable_clk0_no_wait(pm, startup); + pm_wait_for_clk0_ready(pm); +} + + +void pm_disable_clk0(volatile avr32_pm_t *pm) +{ + pm->mcctrl &= ~AVR32_PM_MCCTRL_OSC0EN_MASK; +} + + +void pm_enable_clk0_no_wait(volatile avr32_pm_t *pm, unsigned int startup) +{ + // Read register + u_avr32_pm_oscctrl0_t u_avr32_pm_oscctrl0 = {pm->oscctrl0}; + // Modify + u_avr32_pm_oscctrl0.OSCCTRL0.startup = startup; + // Write back + pm->oscctrl0 = u_avr32_pm_oscctrl0.oscctrl0; + + pm->mcctrl |= AVR32_PM_MCCTRL_OSC0EN_MASK; +} + + +void pm_wait_for_clk0_ready(volatile avr32_pm_t *pm) +{ + while (!(pm->poscsr & AVR32_PM_POSCSR_OSC0RDY_MASK)); +} + + +/*! \brief Sets the mode of the oscillator 1. + * + * \param pm Base address of the Power Manager (i.e. &AVR32_PM). + * \param mode Oscillator 1 mode (i.e. AVR32_PM_OSCCTRL1_MODE_x). + */ +static void pm_set_osc1_mode(volatile avr32_pm_t *pm, unsigned int mode) +{ + // Read + u_avr32_pm_oscctrl1_t u_avr32_pm_oscctrl1 = {pm->oscctrl1}; + // Modify + u_avr32_pm_oscctrl1.OSCCTRL1.mode = mode; + // Write + pm->oscctrl1 = u_avr32_pm_oscctrl1.oscctrl1; +} + + +void pm_enable_osc1_ext_clock(volatile avr32_pm_t *pm) +{ + pm_set_osc1_mode(pm, AVR32_PM_OSCCTRL1_MODE_EXT_CLOCK); +} + + +void pm_enable_osc1_crystal(volatile avr32_pm_t *pm, unsigned int fosc1) +{ + pm_set_osc1_mode(pm, (fosc1 < 900000) ? AVR32_PM_OSCCTRL1_MODE_CRYSTAL_G0 : + (fosc1 < 3000000) ? AVR32_PM_OSCCTRL1_MODE_CRYSTAL_G1 : + (fosc1 < 8000000) ? AVR32_PM_OSCCTRL1_MODE_CRYSTAL_G2 : + AVR32_PM_OSCCTRL1_MODE_CRYSTAL_G3); +} + + +void pm_enable_clk1(volatile avr32_pm_t *pm, unsigned int startup) +{ + pm_enable_clk1_no_wait(pm, startup); + pm_wait_for_clk1_ready(pm); +} + + +void pm_disable_clk1(volatile avr32_pm_t *pm) +{ + pm->mcctrl &= ~AVR32_PM_MCCTRL_OSC1EN_MASK; +} + + +void pm_enable_clk1_no_wait(volatile avr32_pm_t *pm, unsigned int startup) +{ + // Read register + u_avr32_pm_oscctrl1_t u_avr32_pm_oscctrl1 = {pm->oscctrl1}; + // Modify + u_avr32_pm_oscctrl1.OSCCTRL1.startup = startup; + // Write back + pm->oscctrl1 = u_avr32_pm_oscctrl1.oscctrl1; + + pm->mcctrl |= AVR32_PM_MCCTRL_OSC1EN_MASK; +} + + +void pm_wait_for_clk1_ready(volatile avr32_pm_t *pm) +{ + while (!(pm->poscsr & AVR32_PM_POSCSR_OSC1RDY_MASK)); +} + + +/*! \brief Sets the mode of the 32-kHz oscillator. + * + * \param pm Base address of the Power Manager (i.e. &AVR32_PM). + * \param mode 32-kHz oscillator mode (i.e. AVR32_PM_OSCCTRL32_MODE_x). + */ +static void pm_set_osc32_mode(volatile avr32_pm_t *pm, unsigned int mode) +{ + // Read + u_avr32_pm_oscctrl32_t u_avr32_pm_oscctrl32 = {pm->oscctrl32}; + // Modify + u_avr32_pm_oscctrl32.OSCCTRL32.mode = mode; + // Write + pm->oscctrl32 = u_avr32_pm_oscctrl32.oscctrl32; +} + + +void pm_enable_osc32_ext_clock(volatile avr32_pm_t *pm) +{ + pm_set_osc32_mode(pm, AVR32_PM_OSCCTRL32_MODE_EXT_CLOCK); +} + + +void pm_enable_osc32_crystal(volatile avr32_pm_t *pm) +{ + pm_set_osc32_mode(pm, AVR32_PM_OSCCTRL32_MODE_CRYSTAL); +} + + +void pm_enable_clk32(volatile avr32_pm_t *pm, unsigned int startup) +{ + pm_enable_clk32_no_wait(pm, startup); + pm_wait_for_clk32_ready(pm); +} + + +void pm_disable_clk32(volatile avr32_pm_t *pm) +{ + pm->oscctrl32 &= ~AVR32_PM_OSCCTRL32_OSC32EN_MASK; +} + + +void pm_enable_clk32_no_wait(volatile avr32_pm_t *pm, unsigned int startup) +{ + // Read register + u_avr32_pm_oscctrl32_t u_avr32_pm_oscctrl32 = {pm->oscctrl32}; + // Modify + u_avr32_pm_oscctrl32.OSCCTRL32.osc32en = 1; + u_avr32_pm_oscctrl32.OSCCTRL32.startup = startup; + // Write back + pm->oscctrl32 = u_avr32_pm_oscctrl32.oscctrl32; +} + + +void pm_wait_for_clk32_ready(volatile avr32_pm_t *pm) +{ + while (!(pm->poscsr & AVR32_PM_POSCSR_OSC32RDY_MASK)); +} + + +void pm_cksel(volatile avr32_pm_t *pm, + unsigned int pbadiv, + unsigned int pbasel, + unsigned int pbbdiv, + unsigned int pbbsel, + unsigned int hsbdiv, + unsigned int hsbsel) +{ + u_avr32_pm_cksel_t u_avr32_pm_cksel = {0}; + + u_avr32_pm_cksel.CKSEL.cpusel = hsbsel; + u_avr32_pm_cksel.CKSEL.cpudiv = hsbdiv; + u_avr32_pm_cksel.CKSEL.hsbsel = hsbsel; + u_avr32_pm_cksel.CKSEL.hsbdiv = hsbdiv; + u_avr32_pm_cksel.CKSEL.pbasel = pbasel; + u_avr32_pm_cksel.CKSEL.pbadiv = pbadiv; + u_avr32_pm_cksel.CKSEL.pbbsel = pbbsel; + u_avr32_pm_cksel.CKSEL.pbbdiv = pbbdiv; + + pm->cksel = u_avr32_pm_cksel.cksel; + + // Wait for ckrdy bit and then clear it + while (!(pm->poscsr & AVR32_PM_POSCSR_CKRDY_MASK)); +} + + +void pm_gc_setup(volatile avr32_pm_t *pm, + unsigned int gc, + unsigned int osc_or_pll, // Use Osc (=0) or PLL (=1) + unsigned int pll_osc, // Sel Osc0/PLL0 or Osc1/PLL1 + unsigned int diven, + unsigned int div) +{ + u_avr32_pm_gcctrl_t u_avr32_pm_gcctrl = {0}; + + u_avr32_pm_gcctrl.GCCTRL.oscsel = pll_osc; + u_avr32_pm_gcctrl.GCCTRL.pllsel = osc_or_pll; + u_avr32_pm_gcctrl.GCCTRL.diven = diven; + u_avr32_pm_gcctrl.GCCTRL.div = div; + + pm->gcctrl[gc] = u_avr32_pm_gcctrl.gcctrl; +} + + +void pm_gc_enable(volatile avr32_pm_t *pm, + unsigned int gc) +{ + pm->gcctrl[gc] |= AVR32_PM_GCCTRL_CEN_MASK; +} + + +void pm_gc_disable(volatile avr32_pm_t *pm, + unsigned int gc) +{ + pm->gcctrl[gc] &= ~AVR32_PM_GCCTRL_CEN_MASK; +} + + +void pm_pll_setup(volatile avr32_pm_t *pm, + unsigned int pll, + unsigned int mul, + unsigned int div, + unsigned int osc, + unsigned int lockcount) +{ + u_avr32_pm_pll_t u_avr32_pm_pll = {0}; + + u_avr32_pm_pll.PLL.pllosc = osc; + u_avr32_pm_pll.PLL.plldiv = div; + u_avr32_pm_pll.PLL.pllmul = mul; + u_avr32_pm_pll.PLL.pllcount = lockcount; + + pm->pll[pll] = u_avr32_pm_pll.pll; +} + + +void pm_pll_set_option(volatile avr32_pm_t *pm, + unsigned int pll, + unsigned int pll_freq, + unsigned int pll_div2, + unsigned int pll_wbwdisable) +{ + u_avr32_pm_pll_t u_avr32_pm_pll = {pm->pll[pll]}; + u_avr32_pm_pll.PLL.pllopt = pll_freq | (pll_div2 << 1) | (pll_wbwdisable << 2); + pm->pll[pll] = u_avr32_pm_pll.pll; +} + + +unsigned int pm_pll_get_option(volatile avr32_pm_t *pm, + unsigned int pll) +{ + return (pm->pll[pll] & AVR32_PM_PLLOPT_MASK) >> AVR32_PM_PLLOPT_OFFSET; +} + + +void pm_pll_enable(volatile avr32_pm_t *pm, + unsigned int pll) +{ + pm->pll[pll] |= AVR32_PM_PLLEN_MASK; +} + + +void pm_pll_disable(volatile avr32_pm_t *pm, + unsigned int pll) +{ + pm->pll[pll] &= ~AVR32_PM_PLLEN_MASK; +} + + +void pm_wait_for_pll0_locked(volatile avr32_pm_t *pm) +{ + while (!(pm->poscsr & AVR32_PM_POSCSR_LOCK0_MASK)); +} + + +void pm_wait_for_pll1_locked(volatile avr32_pm_t *pm) +{ + while (!(pm->poscsr & AVR32_PM_POSCSR_LOCK1_MASK)); +} + + +void pm_switch_to_clock(volatile avr32_pm_t *pm, unsigned long clock) +{ + // Read + u_avr32_pm_mcctrl_t u_avr32_pm_mcctrl = {pm->mcctrl}; + // Modify + u_avr32_pm_mcctrl.MCCTRL.mcsel = clock; + // Write back + pm->mcctrl = u_avr32_pm_mcctrl.mcctrl; +} + + +void pm_switch_to_osc0(volatile avr32_pm_t *pm, unsigned int fosc0, unsigned int startup) +{ + pm_enable_osc0_crystal(pm, fosc0); // Enable the Osc0 in crystal mode + pm_enable_clk0(pm, startup); // Crystal startup time - This parameter is critical and depends on the characteristics of the crystal + pm_switch_to_clock(pm, AVR32_PM_MCSEL_OSC0); // Then switch main clock to Osc0 +} + + +void pm_bod_enable_irq(volatile avr32_pm_t *pm) +{ + pm->ier = AVR32_PM_IER_BODDET_MASK; +} + + +void pm_bod_disable_irq(volatile avr32_pm_t *pm) +{ + Bool global_interrupt_enabled = Is_global_interrupt_enabled(); + + if (global_interrupt_enabled) Disable_global_interrupt(); + pm->idr = AVR32_PM_IDR_BODDET_MASK; + pm->isr; + if (global_interrupt_enabled) Enable_global_interrupt(); +} + + +void pm_bod_clear_irq(volatile avr32_pm_t *pm) +{ + pm->icr = AVR32_PM_ICR_BODDET_MASK; +} + + +unsigned long pm_bod_get_irq_status(volatile avr32_pm_t *pm) +{ + return ((pm->isr & AVR32_PM_ISR_BODDET_MASK) != 0); +} + + +unsigned long pm_bod_get_irq_enable_bit(volatile avr32_pm_t *pm) +{ + return ((pm->imr & AVR32_PM_IMR_BODDET_MASK) != 0); +} + + +unsigned long pm_bod_get_level(volatile avr32_pm_t *pm) +{ + return (pm->bod & AVR32_PM_BOD_LEVEL_MASK) >> AVR32_PM_BOD_LEVEL_OFFSET; +} + + +unsigned long pm_read_gplp(volatile avr32_pm_t *pm, unsigned long gplp) +{ + return pm->gplp[gplp]; +} + + +void pm_write_gplp(volatile avr32_pm_t *pm, unsigned long gplp, unsigned long value) +{ + pm->gplp[gplp] = value; +} + + +long pm_enable_module(volatile avr32_pm_t *pm, unsigned long module) +{ + unsigned long domain = module>>5; + unsigned long *regptr = (unsigned long*)(&(pm->cpumask) + domain); + + // Implementation-specific shortcut: the ckMASK registers are contiguous and + // memory-mapped in that order: CPUMASK, HSBMASK, PBAMASK, PBBMASK. + + *regptr |= (1<<(module%32)); + + return PASS; +} + +long pm_disable_module(volatile avr32_pm_t *pm, unsigned long module) +{ + unsigned long domain = module>>5; + unsigned long *regptr = (unsigned long*)(&(pm->cpumask) + domain); + + // Implementation-specific shortcut: the ckMASK registers are contiguous and + // memory-mapped in that order: CPUMASK, HSBMASK, PBAMASK, PBBMASK. + + *regptr &= ~(1<<(module%32)); + + return PASS; +} diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/PM/pm.h b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/PM/pm.h new file mode 100644 index 0000000..ca679f7 --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/PM/pm.h @@ -0,0 +1,493 @@ +/* This header file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file has been prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief Power Manager driver. + * + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + *****************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#ifndef _PM_H_ +#define _PM_H_ + +#include <avr32/io.h> +#include "compiler.h" +#include "preprocessor.h" + + +/*! \brief Sets the MCU in the specified sleep mode. + * + * \param mode Sleep mode: + * \arg \c AVR32_PM_SMODE_IDLE: Idle; + * \arg \c AVR32_PM_SMODE_FROZEN: Frozen; + * \arg \c AVR32_PM_SMODE_STANDBY: Standby; + * \arg \c AVR32_PM_SMODE_STOP: Stop; + * \arg \c AVR32_PM_SMODE_DEEP_STOP: DeepStop; + * \arg \c AVR32_PM_SMODE_STATIC: Static. + */ +#define SLEEP(mode) {__asm__ __volatile__ ("sleep "STRINGZ(mode));} + + +//! Input and output parameters when initializing PM clocks using pm_configure_clocks(). +typedef struct +{ + //! CPU frequency (input/output argument). + unsigned long cpu_f; + + //! PBA frequency (input/output argument). + unsigned long pba_f; + + //! Oscillator 0's external crystal(or external clock) frequency (board dependant) (input argument). + unsigned long osc0_f; + + //! Oscillator 0's external crystal(or external clock) startup time: AVR32_PM_OSCCTRL0_STARTUP_x_RCOSC (input argument). + unsigned long osc0_startup; +} pm_freq_param_t; + +#define PM_FREQ_STATUS_FAIL (-1) +#define PM_FREQ_STATUS_OK (0) + + +/*! \brief Gets the MCU reset cause. + * + * \param pm Base address of the Power Manager instance (i.e. &AVR32_PM). + * + * \return The MCU reset cause which can be masked with the + * \c AVR32_PM_RCAUSE_x_MASK bit-masks to isolate specific causes. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ unsigned int pm_get_reset_cause(volatile avr32_pm_t *pm) +{ + return pm->rcause; +} + + +/*! + * \brief This function will enable the external clock mode of the oscillator 0. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + */ +extern void pm_enable_osc0_ext_clock(volatile avr32_pm_t *pm); + + +/*! + * \brief This function will enable the crystal mode of the oscillator 0. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param fosc0 Oscillator 0 crystal frequency (Hz) + */ +extern void pm_enable_osc0_crystal(volatile avr32_pm_t *pm, unsigned int fosc0); + + +/*! + * \brief This function will enable the oscillator 0 to be used with a startup time. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param startup Clock 0 startup time. AVR32_PM_OSCCTRL0_STARTUP_x_RCOSC. + */ +extern void pm_enable_clk0(volatile avr32_pm_t *pm, unsigned int startup); + + +/*! + * \brief This function will disable the oscillator 0. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + */ +extern void pm_disable_clk0(volatile avr32_pm_t *pm); + + +/*! + * \brief This function will enable the oscillator 0 to be used with no startup time. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param startup Clock 0 startup time, for which the function does not wait. AVR32_PM_OSCCTRL0_STARTUP_x_RCOSC. + */ +extern void pm_enable_clk0_no_wait(volatile avr32_pm_t *pm, unsigned int startup); + + +/*! + * \brief This function will wait until the Osc0 clock is ready. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + */ +extern void pm_wait_for_clk0_ready(volatile avr32_pm_t *pm); + + +/*! + * \brief This function will enable the external clock mode of the oscillator 1. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + */ +extern void pm_enable_osc1_ext_clock(volatile avr32_pm_t *pm); + + +/*! + * \brief This function will enable the crystal mode of the oscillator 1. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param fosc1 Oscillator 1 crystal frequency (Hz) + */ +extern void pm_enable_osc1_crystal(volatile avr32_pm_t *pm, unsigned int fosc1); + + +/*! + * \brief This function will enable the oscillator 1 to be used with a startup time. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param startup Clock 1 startup time. AVR32_PM_OSCCTRL1_STARTUP_x_RCOSC. + */ +extern void pm_enable_clk1(volatile avr32_pm_t *pm, unsigned int startup); + + +/*! + * \brief This function will disable the oscillator 1. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + */ +extern void pm_disable_clk1(volatile avr32_pm_t *pm); + + +/*! + * \brief This function will enable the oscillator 1 to be used with no startup time. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param startup Clock 1 startup time, for which the function does not wait. AVR32_PM_OSCCTRL1_STARTUP_x_RCOSC. + */ +extern void pm_enable_clk1_no_wait(volatile avr32_pm_t *pm, unsigned int startup); + + +/*! + * \brief This function will wait until the Osc1 clock is ready. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + */ +extern void pm_wait_for_clk1_ready(volatile avr32_pm_t *pm); + + +/*! + * \brief This function will enable the external clock mode of the 32-kHz oscillator. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + */ +extern void pm_enable_osc32_ext_clock(volatile avr32_pm_t *pm); + + +/*! + * \brief This function will enable the crystal mode of the 32-kHz oscillator. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + */ +extern void pm_enable_osc32_crystal(volatile avr32_pm_t *pm); + + +/*! + * \brief This function will enable the oscillator 32 to be used with a startup time. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param startup Clock 32 kHz startup time. AVR32_PM_OSCCTRL32_STARTUP_x_RCOSC. + */ +extern void pm_enable_clk32(volatile avr32_pm_t *pm, unsigned int startup); + + +/*! + * \brief This function will disable the oscillator 32. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + */ +extern void pm_disable_clk32(volatile avr32_pm_t *pm); + + +/*! + * \brief This function will enable the oscillator 32 to be used with no startup time. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param startup Clock 32 kHz startup time, for which the function does not wait. AVR32_PM_OSCCTRL32_STARTUP_x_RCOSC. + */ +extern void pm_enable_clk32_no_wait(volatile avr32_pm_t *pm, unsigned int startup); + + +/*! + * \brief This function will wait until the osc32 clock is ready. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + */ +extern void pm_wait_for_clk32_ready(volatile avr32_pm_t *pm); + + +/*! + * \brief This function will select all the power manager clocks. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param pbadiv Peripheral Bus A clock divisor enable + * \param pbasel Peripheral Bus A select + * \param pbbdiv Peripheral Bus B clock divisor enable + * \param pbbsel Peripheral Bus B select + * \param hsbdiv High Speed Bus clock divisor enable (CPU clock = HSB clock) + * \param hsbsel High Speed Bus select (CPU clock = HSB clock ) + */ +extern void pm_cksel(volatile avr32_pm_t *pm, unsigned int pbadiv, unsigned int pbasel, unsigned int pbbdiv, unsigned int pbbsel, unsigned int hsbdiv, unsigned int hsbsel); + + +/*! + * \brief This function will setup a generic clock. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param gc generic clock number (0 for gc0...) + * \param osc_or_pll Use OSC (=0) or PLL (=1) + * \param pll_osc Select Osc0/PLL0 or Osc1/PLL1 + * \param diven Generic clock divisor enable + * \param div Generic clock divisor + */ +extern void pm_gc_setup(volatile avr32_pm_t *pm, unsigned int gc, unsigned int osc_or_pll, unsigned int pll_osc, unsigned int diven, unsigned int div); + + +/*! + * \brief This function will enable a generic clock. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param gc generic clock number (0 for gc0...) + */ +extern void pm_gc_enable(volatile avr32_pm_t *pm, unsigned int gc); + + +/*! + * \brief This function will disable a generic clock. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param gc generic clock number (0 for gc0...) + */ +extern void pm_gc_disable(volatile avr32_pm_t *pm, unsigned int gc); + + +/*! + * \brief This function will setup a PLL. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param pll PLL number(0 for PLL0, 1 for PLL1) + * \param mul PLL MUL in the PLL formula + * \param div PLL DIV in the PLL formula + * \param osc OSC number (0 for osc0, 1 for osc1) + * \param lockcount PLL lockount + */ +extern void pm_pll_setup(volatile avr32_pm_t *pm, unsigned int pll, unsigned int mul, unsigned int div, unsigned int osc, unsigned int lockcount); + + +/*! + * \brief This function will set a PLL option. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param pll PLL number(0 for PLL0, 1 for PLL1) + * \param pll_freq Set to 1 for VCO frequency range 80-180MHz, set to 0 for VCO frequency range 160-240Mhz. + * \param pll_div2 Divide the PLL output frequency by 2 (this settings does not change the FVCO value) + * \param pll_wbwdisable 1 Disable the Wide-Bandith Mode (Wide-Bandwith mode allow a faster startup time and out-of-lock time). 0 to enable the Wide-Bandith Mode. + */ +extern void pm_pll_set_option(volatile avr32_pm_t *pm, unsigned int pll, unsigned int pll_freq, unsigned int pll_div2, unsigned int pll_wbwdisable); + + +/*! + * \brief This function will get a PLL option. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param pll PLL number(0 for PLL0, 1 for PLL1) + * \return Option + */ +extern unsigned int pm_pll_get_option(volatile avr32_pm_t *pm, unsigned int pll); + + +/*! + * \brief This function will enable a PLL. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param pll PLL number(0 for PLL0, 1 for PLL1) + */ +extern void pm_pll_enable(volatile avr32_pm_t *pm, unsigned int pll); + + +/*! + * \brief This function will disable a PLL. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param pll PLL number(0 for PLL0, 1 for PLL1) + */ +extern void pm_pll_disable(volatile avr32_pm_t *pm, unsigned int pll); + + +/*! + * \brief This function will wait for PLL0 locked + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + */ +extern void pm_wait_for_pll0_locked(volatile avr32_pm_t *pm); + + +/*! + * \brief This function will wait for PLL1 locked + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + */ +extern void pm_wait_for_pll1_locked(volatile avr32_pm_t *pm); + + +/*! + * \brief This function will switch the power manager main clock. + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param clock Clock to be switched on. AVR32_PM_MCSEL_SLOW for RCOsc, AVR32_PM_MCSEL_OSC0 for Osc0, AVR32_PM_MCSEL_PLL0 for PLL0. + */ +extern void pm_switch_to_clock(volatile avr32_pm_t *pm, unsigned long clock); + + +/*! + * \brief Switch main clock to clock Osc0 (crystal mode) + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param fosc0 Oscillator 0 crystal frequency (Hz) + * \param startup Crystal 0 startup time. AVR32_PM_OSCCTRL0_STARTUP_x_RCOSC. + */ +extern void pm_switch_to_osc0(volatile avr32_pm_t *pm, unsigned int fosc0, unsigned int startup); + + +/*! \brief Enables the Brown-Out Detector interrupt. + * + * \param pm Base address of the Power Manager (i.e. &AVR32_PM). + */ +extern void pm_bod_enable_irq(volatile avr32_pm_t *pm); + + +/*! \brief Disables the Brown-Out Detector interrupt. + * + * \param pm Base address of the Power Manager (i.e. &AVR32_PM). + */ +extern void pm_bod_disable_irq(volatile avr32_pm_t *pm); + + +/*! \brief Clears the Brown-Out Detector interrupt flag. + * + * \param pm Base address of the Power Manager (i.e. &AVR32_PM). + */ +extern void pm_bod_clear_irq(volatile avr32_pm_t *pm); + + +/*! \brief Gets the Brown-Out Detector interrupt flag. + * + * \param pm Base address of the Power Manager (i.e. &AVR32_PM). + * + * \retval 0 No BOD interrupt. + * \retval 1 BOD interrupt pending. + */ +extern unsigned long pm_bod_get_irq_status(volatile avr32_pm_t *pm); + + +/*! \brief Gets the Brown-Out Detector interrupt enable status. + * + * \param pm Base address of the Power Manager (i.e. &AVR32_PM). + * + * \retval 0 BOD interrupt disabled. + * \retval 1 BOD interrupt enabled. + */ +extern unsigned long pm_bod_get_irq_enable_bit(volatile avr32_pm_t *pm); + + +/*! \brief Gets the triggering threshold of the Brown-Out Detector. + * + * \param pm Base address of the Power Manager (i.e. &AVR32_PM). + * + * \return Triggering threshold of the BOD. See the electrical characteristics + * in the part datasheet for actual voltage levels. + */ +extern unsigned long pm_bod_get_level(volatile avr32_pm_t *pm); + + +/*! + * \brief Read the content of the PM GPLP registers + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param gplp GPLP register index (0,1,... depending on the number of GPLP registers for a given part) + * + * \return The content of the chosen GPLP register. + */ +extern unsigned long pm_read_gplp(volatile avr32_pm_t *pm, unsigned long gplp); + + +/*! + * \brief Write into the PM GPLP registers + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param gplp GPLP register index (0,1,... depending on the number of GPLP registers for a given part) + * \param value Value to write + */ +extern void pm_write_gplp(volatile avr32_pm_t *pm, unsigned long gplp, unsigned long value); + + +/*! \brief Enable the clock of a module. + * + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param module The module to clock (use one of the defines in the part-specific + * header file under "toolchain folder"/avr32/inc(lude)/avr32/; depending on the + * clock domain, look for the sections "CPU clocks", "HSB clocks", "PBx clocks") + * + * \return Status. + * \retval 0 Success. + * \retval <0 An error occured. + */ +extern long pm_enable_module(volatile avr32_pm_t *pm, unsigned long module); + +/*! \brief Disable the clock of a module. + * + * \param pm Base address of the Power Manager (i.e. &AVR32_PM) + * \param module The module to shut down (use one of the defines in the part-specific + * header file under "toolchain folder"/avr32/inc(lude)/avr32/; depending on the + * clock domain, look for the sections "CPU clocks", "HSB clocks", "PBx clocks") + * + * \return Status. + * \retval 0 Success. + * \retval <0 An error occured. + */ +extern long pm_disable_module(volatile avr32_pm_t *pm, unsigned long module); + + + +/*! \brief Automatically configure the CPU, PBA, PBB, and HSB clocks + * according to the user wishes. + * + * This function needs some parameters stored in a pm_freq_param_t structure: + * - cpu_f and pba_f are the wanted frequencies, + * - osc0_f is the oscillator 0 on-board frequency (e.g. FOSC0), + * - osc0_startup is the oscillator 0 startup time (e.g. OSC0_STARTUP). + * + * The function will then configure the clocks using the following rules: + * - It first try to find a valid PLL frequency (the highest possible value to avoid jitter) in order + * to satisfy the CPU frequency, + * - It optimizes the configuration depending the various divide stages, + * - Then, the PBA frequency is configured from the CPU freq. + * - Note that HSB and PBB are configured with the same frequency as CPU. + * - Note also that the number of wait states of the flash read accesses is automatically set-up depending + * the CPU frequency. As a consequence, the application needs the FLASHC driver to compile. + * + * The CPU, HSB and PBA frequencies programmed after configuration are stored back into cpu_f and pba_f. + * + * \param param pointer on the configuration structure. + * + * \retval PM_FREQ_STATUS_OK Mode successfully initialized. + * \retval PM_FREQ_STATUS_FAIL The configuration can not be done. + */ +extern int pm_configure_clocks(pm_freq_param_t *param); + + +/*! \brief Automatically configure the USB clock. + * + * USB clock is configured to 48MHz, using the PLL1 from the Oscillator0, assuming + * a 12 MHz crystal is connected to it. + */ +extern void pm_configure_usb_clock(void); + + +#endif // _PM_H_ diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/PM/pm_conf_clocks.c b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/PM/pm_conf_clocks.c new file mode 100644 index 0000000..8beb83b --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/PM/pm_conf_clocks.c @@ -0,0 +1,268 @@ +/* This source file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file has been prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief Power Manager clocks configuration helper. + * + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + *****************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#include <string.h> +#include "compiler.h" +#include "pm.h" + +extern void flashc_set_wait_state(unsigned int wait_state); +#if (defined AVR32_FLASHC_210_H_INCLUDED) +extern void flashc_issue_command(unsigned int command, int page_number); +#endif + + +#define PM_MAX_MUL ((1 << AVR32_PM_PLL0_PLLMUL_SIZE) - 1) + + +int pm_configure_clocks(pm_freq_param_t *param) +{ + // Supported frequencies: + // Fosc0 mul div PLL div2_en cpu_f pba_f Comment + // 12 15 1 192 1 12 12 + // 12 9 3 40 1 20 20 PLL out of spec + // 12 15 1 192 1 24 12 + // 12 9 1 120 1 30 15 + // 12 9 3 40 0 40 20 PLL out of spec + // 12 15 1 192 1 48 12 + // 12 15 1 192 1 48 24 + // 12 8 1 108 1 54 27 + // 12 9 1 120 1 60 15 + // 12 9 1 120 1 60 30 + // 12 10 1 132 1 66 16.5 + // + unsigned long in_cpu_f = param->cpu_f; + unsigned long in_osc0_f = param->osc0_f; + unsigned long mul, div, div2_en = 0, div2_cpu = 0, div2_pba = 0; + unsigned long pll_freq, rest; + Bool b_div2_pba, b_div2_cpu; + + // Switch to external Oscillator 0 + pm_switch_to_osc0(&AVR32_PM, in_osc0_f, param->osc0_startup); + + // Start with CPU freq config + if (in_cpu_f == in_osc0_f) + { + param->cpu_f = in_osc0_f; + param->pba_f = in_osc0_f; + return PM_FREQ_STATUS_OK; + } + else if (in_cpu_f < in_osc0_f) + { + // TBD + } + + rest = in_cpu_f % in_osc0_f; + + for (div = 1; div < 32; div++) + { + if ((div * rest) % in_osc0_f == 0) + break; + } + if (div == 32) + return PM_FREQ_STATUS_FAIL; + + mul = (in_cpu_f * div) / in_osc0_f; + + if (mul > PM_MAX_MUL) + return PM_FREQ_STATUS_FAIL; + + // export 2power from PLL div to div2_cpu + while (!(div % 2)) + { + div /= 2; + div2_cpu++; + } + + // Here we know the mul and div parameter of the PLL config. + // . Check out if the PLL has a valid in_cpu_f. + // . Try to have for the PLL frequency (VCO output) the highest possible value + // to reduce jitter. + while (in_osc0_f * 2 * mul / div < AVR32_PM_PLL_VCO_RANGE0_MAX_FREQ) + { + if (2 * mul > PM_MAX_MUL) + break; + mul *= 2; + div2_cpu++; + } + + if (div2_cpu != 0) + { + div2_cpu--; + div2_en = 1; + } + + pll_freq = in_osc0_f * mul / (div * (1 << div2_en)); + + // Update real CPU Frequency + param->cpu_f = pll_freq / (1 << div2_cpu); + mul--; + + pm_pll_setup(&AVR32_PM + , 0 // pll + , mul // mul + , div // div + , 0 // osc + , 16 // lockcount + ); + + pm_pll_set_option(&AVR32_PM + , 0 // pll + // PLL clock is lower than 160MHz: need to set pllopt. + , (pll_freq < AVR32_PM_PLL_VCO_RANGE0_MIN_FREQ) ? 1 : 0 // pll_freq + , div2_en // pll_div2 + , 0 // pll_wbwdisable + ); + + rest = pll_freq; + while (rest > AVR32_PM_PBA_MAX_FREQ || + rest != param->pba_f) + { + div2_pba++; + rest = pll_freq / (1 << div2_pba); + if (rest < param->pba_f) + break; + } + + // Update real PBA Frequency + param->pba_f = pll_freq / (1 << div2_pba); + + // Enable PLL0 + pm_pll_enable(&AVR32_PM, 0); + + // Wait for PLL0 locked + pm_wait_for_pll0_locked(&AVR32_PM); + + if (div2_cpu) + { + b_div2_cpu = TRUE; + div2_cpu--; + } + else + b_div2_cpu = FALSE; + + if (div2_pba) + { + b_div2_pba = TRUE; + div2_pba--; + } + else + b_div2_pba = FALSE; + + pm_cksel(&AVR32_PM + , b_div2_pba, div2_pba // PBA + , b_div2_cpu, div2_cpu // PBB + , b_div2_cpu, div2_cpu // HSB + ); + + if (param->cpu_f > AVR32_FLASHC_FWS_0_MAX_FREQ) + { + flashc_set_wait_state(1); +#if (defined AVR32_FLASHC_210_H_INCLUDED) + if (param->cpu_f > AVR32_FLASHC_HSEN_FWS_1_MAX_FREQ) + flashc_issue_command(AVR32_FLASHC_FCMD_CMD_HSEN, -1); + else + flashc_issue_command(AVR32_FLASHC_FCMD_CMD_HSDIS, -1); +#endif + } + else + { + flashc_set_wait_state(0); +#if (defined AVR32_FLASHC_210_H_INCLUDED) + if (param->cpu_f > AVR32_FLASHC_HSEN_FWS_0_MAX_FREQ) + flashc_issue_command(AVR32_FLASHC_FCMD_CMD_HSEN, -1); + else + flashc_issue_command(AVR32_FLASHC_FCMD_CMD_HSDIS, -1); +#endif + } + + pm_switch_to_clock(&AVR32_PM, AVR32_PM_MCCTRL_MCSEL_PLL0); + + return PM_FREQ_STATUS_OK; +} + + +void pm_configure_usb_clock(void) +{ +#if UC3A3 + + // Setup USB GCLK. + pm_gc_setup(&AVR32_PM, AVR32_PM_GCLK_USBB, // gc + 0, // osc_or_pll: use Osc (if 0) or PLL (if 1) + 0, // pll_osc: select Osc0/PLL0 or Osc1/PLL1 + 0, // diven + 0); // div + + // Enable USB GCLK. + pm_gc_enable(&AVR32_PM, AVR32_PM_GCLK_USBB); +#else + // Use 12MHz from OSC0 and generate 96 MHz + pm_pll_setup(&AVR32_PM, 1, // pll. + 7, // mul. + 1, // div. + 0, // osc. + 16); // lockcount. + + pm_pll_set_option(&AVR32_PM, 1, // pll. + 1, // pll_freq: choose the range 80-180MHz. + 1, // pll_div2. + 0); // pll_wbwdisable. + + // start PLL1 and wait forl lock + pm_pll_enable(&AVR32_PM, 1); + + // Wait for PLL1 locked. + pm_wait_for_pll1_locked(&AVR32_PM); + + pm_gc_setup(&AVR32_PM, AVR32_PM_GCLK_USBB, // gc. + 1, // osc_or_pll: use Osc (if 0) or PLL (if 1). + 1, // pll_osc: select Osc0/PLL0 or Osc1/PLL1. + 0, // diven. + 0); // div. + pm_gc_enable(&AVR32_PM, AVR32_PM_GCLK_USBB); +#endif +} diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/PM/power_clocks_lib.c b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/PM/power_clocks_lib.c new file mode 100644 index 0000000..f5fc155 --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/PM/power_clocks_lib.c @@ -0,0 +1,566 @@ +/* This source file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file has been prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief High-level library abstracting features such as oscillators/pll/dfll + * configuration, clock configuration, System-sensible parameters + * configuration, buses clocks configuration, sleep mode, reset. + * + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + *****************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ +#include "power_clocks_lib.h" + + +//! Device-specific data +#if UC3L +static long int pcl_configure_clocks_uc3l(pcl_freq_param_t *param); // FORWARD declaration +#endif + +#if UC3C +static long int pcl_configure_clocks_uc3c(pcl_freq_param_t *param); // FORWARD declaration +#endif + +long int pcl_configure_clocks(pcl_freq_param_t *param) +{ +#ifndef AVR32_PM_VERSION_RESETVALUE + // Implementation for UC3A, UC3A3, UC3B parts. + return(pm_configure_clocks(param)); +#else + #ifdef AVR32_PM_410_H_INCLUDED + // Implementation for UC3C parts. + return(pcl_configure_clocks_uc3c(param)); + #else + // Implementation for UC3L parts. + return(pcl_configure_clocks_uc3l(param)); + #endif +#endif +} + + +//! Device-specific implementation +#if UC3L +// FORWARD declaration +static long int pcl_configure_synchronous_clocks( pm_clk_src_t main_clk_src, + unsigned long main_clock_freq_hz, + pcl_freq_param_t *param); + +long int pcl_configure_clocks_rcsys(pcl_freq_param_t *param) +{ + // Supported main clock sources: PCL_MC_RCSYS + + // Supported synchronous clocks frequencies if RCSYS is the main clock source: + // 115200Hz, 57600Hz, 28800Hz, 14400Hz, 7200Hz, 3600Hz, 1800Hz, 900Hz, 450Hz. + + // NOTE: by default, this implementation doesn't perform thorough checks on the + // input parameters. To enable the checks, define AVR32SFW_INPUT_CHECK. + +#ifdef AVR32SFW_INPUT_CHECK + // Verify that fCPU >= fPBx + if((param->cpu_f < param->pba_f) || (param->cpu_f < param->pbb_f)) + return(-1); +#endif + +#ifdef AVR32SFW_INPUT_CHECK + // Verify that the target frequencies are reachable. + if((param->cpu_f > SCIF_SLOWCLOCK_FREQ_HZ) || (param->pba_f > SCIF_SLOWCLOCK_FREQ_HZ) + || (param->pbb_f > SCIF_SLOWCLOCK_FREQ_HZ)) + return(-1); +#endif + + return(pcl_configure_synchronous_clocks(PM_CLK_SRC_SLOW, SCIF_SLOWCLOCK_FREQ_HZ, param)); +} + + +long int pcl_configure_clocks_rc120m(pcl_freq_param_t *param) +{ + // Supported main clock sources: PCL_MC_RC120M + + // Supported synchronous clocks frequencies if RC120M is the main clock source: + // 30MHz, 15MHz, 7.5MHz, 3.75MHz, 1.875MHz, 937.5kHz, 468.75kHz. + + // NOTE: by default, this implementation doesn't perform thorough checks on the + // input parameters. To enable the checks, define AVR32SFW_INPUT_CHECK. + +#ifdef AVR32SFW_INPUT_CHECK + // Verify that fCPU >= fPBx + if((param->cpu_f < param->pba_f) || (param->cpu_f < param->pbb_f)) + return(-1); +#endif + +#ifdef AVR32SFW_INPUT_CHECK + // Verify that the target frequencies are reachable. + if((param->cpu_f > SCIF_RC120M_FREQ_HZ) || (param->pba_f > SCIF_RC120M_FREQ_HZ) + || (param->pbb_f > SCIF_RC120M_FREQ_HZ)) + return(-1); +#endif + + // Start the 120MHz internal RCosc (RC120M) clock + scif_start_rc120M(); + + return(pcl_configure_synchronous_clocks(PM_CLK_SRC_RC120M, SCIF_RC120M_FREQ_HZ, param)); +} + + +long int pcl_configure_clocks_osc0(pcl_freq_param_t *param) +{ + // Supported main clock sources: PCL_MC_OSC0 + + // Supported synchronous clocks frequencies if OSC0 is the main clock source: + // (these obviously depend on the OSC0 frequency; we'll take 16MHz as an example) + // 16MHz, 8MHz, 4MHz, 2MHz, 1MHz, 500kHz, 250kHz, 125kHz, 62.5kHz. + + // NOTE: by default, this implementation doesn't perform thorough checks on the + // input parameters. To enable the checks, define AVR32SFW_INPUT_CHECK. + + unsigned long main_clock_freq; + + +#ifdef AVR32SFW_INPUT_CHECK + // Verify that fCPU >= fPBx + if((param->cpu_f < param->pba_f) || (param->cpu_f < param->pbb_f)) + return(-1); +#endif + + main_clock_freq = param->osc0_f; +#ifdef AVR32SFW_INPUT_CHECK + // Verify that the target frequencies are reachable. + if((param->cpu_f > main_clock_freq) || (param->pba_f > main_clock_freq) + || (param->pbb_f > main_clock_freq)) + return(-1); +#endif + // Configure OSC0 in crystal mode, external crystal with a fcrystal Hz frequency. + scif_configure_osc_crystalmode(SCIF_OSC0, main_clock_freq); + // Enable the OSC0 + scif_enable_osc(SCIF_OSC0, param->osc0_startup, true); + + return(pcl_configure_synchronous_clocks(PM_CLK_SRC_OSC0, main_clock_freq, param)); +} + + +long int pcl_configure_clocks_dfll0(pcl_freq_param_t *param) +{ + // Supported main clock sources: PCL_MC_DFLL + + // Supported synchronous clocks frequencies if DFLL is the main clock source: + // (these obviously depend on the DFLL target frequency; we'll take 100MHz as an example) + // 50MHz, 25MHz, 12.5MHz, 6.25MHz, 3.125MHz, 1562.5kHz, 781.25kHz, 390.625kHz. + + // NOTE: by default, this implementation doesn't perform thorough checks on the + // input parameters. To enable the checks, define AVR32SFW_INPUT_CHECK. + + unsigned long main_clock_freq; + scif_gclk_opt_t *pgc_dfllif_ref_opt; + + +#ifdef AVR32SFW_INPUT_CHECK + // Verify that fCPU >= fPBx + if((param->cpu_f < param->pba_f) || (param->cpu_f < param->pbb_f)) + return(-1); +#endif + + main_clock_freq = param->dfll_f; +#ifdef AVR32SFW_INPUT_CHECK + // Verify that the target DFLL output frequency is in the correct range. + if((main_clock_freq > SCIF_DFLL_MAXFREQ_HZ) || (main_clock_freq < SCIF_DFLL_MINFREQ_HZ)) + return(-1); + // Verify that the target frequencies are reachable. + if((param->cpu_f > main_clock_freq) || (param->pba_f > main_clock_freq) + || (param->pbb_f > main_clock_freq)) + return(-1); +#endif + pgc_dfllif_ref_opt = (scif_gclk_opt_t *)param->pextra_params; + // Implementation note: this implementation configures the DFLL in closed-loop + // mode (because it gives the best accuracy) which enables the generic clock CLK_DFLLIF_REF + // as a reference (RCSYS being used as the generic clock source, undivided). + scif_dfll0_closedloop_configure_and_start(pgc_dfllif_ref_opt, main_clock_freq, TRUE); + + return(pcl_configure_synchronous_clocks(PM_CLK_SRC_DFLL0, main_clock_freq, param)); +} + + +static long int pcl_configure_clocks_uc3l(pcl_freq_param_t *param) +{ + // Supported main clock sources: PCL_MC_RCSYS, PCL_MC_OSC0, PCL_MC_DFLL0, PCL_MC_RC120M + + // Supported synchronous clocks frequencies if RCSYS is the main clock source: + // 115200Hz, 57600Hz, 28800Hz, 14400Hz, 7200Hz, 3600Hz, 1800Hz, 900Hz, 450Hz. + + // Supported synchronous clocks frequencies if RC120M is the main clock source: + // 30MHz, 15MHz, 7.5MHz, 3.75MHz, 1.875MHz, 937.5kHz, 468.75kHz. + + // Supported synchronous clocks frequencies if OSC0 is the main clock source: + // (these obviously depend on the OSC0 frequency; we'll take 16MHz as an example) + // 16MHz, 8MHz, 4MHz, 2MHz, 1MHz, 500kHz, 250kHz, 125kHz, 62.5kHz. + + // Supported synchronous clocks frequencies if DFLL is the main clock source: + // (these obviously depend on the DFLL target frequency; we'll take 100MHz as an example) + // 50MHz, 25MHz, 12.5MHz, 6.25MHz, 3.125MHz, 1562.5kHz, 781.25kHz, 390.625kHz. + + // NOTE: by default, this implementation doesn't perform thorough checks on the + // input parameters. To enable the checks, define AVR32SFW_INPUT_CHECK. + + +#ifdef AVR32SFW_INPUT_CHECK + // Verify that fCPU >= fPBx + if((param->cpu_f < param->pba_f) || (param->cpu_f < param->pbb_f)) + return(-1); +#endif + + if(PCL_MC_RCSYS == param->main_clk_src) + { + return(pcl_configure_clocks_rcsys(param)); + } + else if(PCL_MC_RC120M == param->main_clk_src) + { + return(pcl_configure_clocks_rc120m(param)); + } + else if(PCL_MC_OSC0 == param->main_clk_src) + { + return(pcl_configure_clocks_osc0(param)); + } + else // PCL_MC_DFLL0 == param->main_clk_src + { + return(pcl_configure_clocks_dfll0(param)); + } +} + +static long int pcl_configure_synchronous_clocks(pm_clk_src_t main_clk_src, unsigned long main_clock_freq_hz, pcl_freq_param_t *param) +{ + //# + //# Set the Synchronous clock division ratio for each clock domain + //# + pm_set_all_cksel(main_clock_freq_hz, param->cpu_f, param->pba_f, param->pbb_f); + + //# + //# Set the Flash wait state and the speed read mode (depending on the target CPU frequency). + //# +#if UC3L + flashcdw_set_flash_waitstate_and_readmode(param->cpu_f); +#elif UC3C + flashc_set_flash_waitstate_and_readmode(param->cpu_f); +#endif + + + //# + //# Switch the main clock source to the selected clock. + //# + pm_set_mclk_source(main_clk_src); + + return PASS; +} + +#endif // UC3L device-specific implementation + +//! UC3C Device-specific implementation +#if UC3C +static long int pcl_configure_clocks_uc3c(pcl_freq_param_t *param) +{ + #define PM_MAX_MUL ((1 << AVR32_SCIF_PLLMUL_SIZE) - 1) + #define AVR32_PM_PBA_MAX_FREQ 66000000 + #define AVR32_PM_PLL_VCO_RANGE0_MAX_FREQ 240000000 + #define AVR32_PM_PLL_VCO_RANGE0_MIN_FREQ 160000000 + + // Implementation for UC3C parts. + // Supported frequencies: + // Fosc0 mul div PLL div2_en cpu_f pba_f Comment + // 12 15 1 192 1 12 12 + // 12 9 3 40 1 20 20 PLL out of spec + // 12 15 1 192 1 24 12 + // 12 9 1 120 1 30 15 + // 12 9 3 40 0 40 20 PLL out of spec + // 12 15 1 192 1 48 12 + // 12 15 1 192 1 48 24 + // 12 8 1 108 1 54 27 + // 12 9 1 120 1 60 15 + // 12 9 1 120 1 60 30 + // 12 10 1 132 1 66 16.5 + // + unsigned long in_cpu_f = param->cpu_f; + unsigned long in_osc0_f = param->osc0_f; + unsigned long mul, div, div2_en = 0, div2_cpu = 0, div2_pba = 0; + unsigned long pll_freq, rest; + Bool b_div2_pba, b_div2_cpu; + + // Configure OSC0 in crystal mode, external crystal with a FOSC0 Hz frequency. + scif_configure_osc_crystalmode(SCIF_OSC0, in_osc0_f); + // Enable the OSC0 + scif_enable_osc(SCIF_OSC0, param->osc0_startup, true); + // Set the main clock source as being OSC0. + pm_set_mclk_source(PM_CLK_SRC_OSC0); + + // Start with CPU freq config + if (in_cpu_f == in_osc0_f) + { + param->cpu_f = in_osc0_f; + param->pba_f = in_osc0_f; + return PASS; + } + else if (in_cpu_f < in_osc0_f) + { + // TBD + } + + rest = in_cpu_f % in_osc0_f; + + for (div = 1; div < 32; div++) + { + if ((div * rest) % in_osc0_f == 0) + break; + } + if (div == 32) + return FAIL; + + mul = (in_cpu_f * div) / in_osc0_f; + + if (mul > PM_MAX_MUL) + return FAIL; + + // export 2power from PLL div to div2_cpu + while (!(div % 2)) + { + div /= 2; + div2_cpu++; + } + + // Here we know the mul and div parameter of the PLL config. + // . Check out if the PLL has a valid in_cpu_f. + // . Try to have for the PLL frequency (VCO output) the highest possible value + // to reduce jitter. + while (in_osc0_f * 2 * mul / div < AVR32_PM_PLL_VCO_RANGE0_MAX_FREQ) + { + if (2 * mul > PM_MAX_MUL) + break; + mul *= 2; + div2_cpu++; + } + + if (div2_cpu != 0) + { + div2_cpu--; + div2_en = 1; + } + + pll_freq = in_osc0_f * mul / (div * (1 << div2_en)); + + // Update real CPU Frequency + param->cpu_f = pll_freq / (1 << div2_cpu); + mul--; + + scif_pll_opt_t opt; + + opt.osc = SCIF_OSC0, // Sel Osc0 or Osc1 + opt.lockcount = 16, // lockcount in main clock for the PLL wait lock + opt.div = div, // DIV=1 in the formula + opt.mul = mul, // MUL=7 in the formula + opt.pll_div2 = div2_en, // pll_div2 Divide the PLL output frequency by 2 (this settings does not change the FVCO value) + opt.pll_wbwdisable = 0, //pll_wbwdisable 1 Disable the Wide-Bandith Mode (Wide-Bandwith mode allow a faster startup time and out-of-lock time). 0 to enable the Wide-Bandith Mode. + opt.pll_freq = (pll_freq < AVR32_PM_PLL_VCO_RANGE0_MIN_FREQ) ? 1 : 0, // Set to 1 for VCO frequency range 80-180MHz, set to 0 for VCO frequency range 160-240Mhz. + + + scif_pll_setup(SCIF_PLL0, opt); // lockcount in main clock for the PLL wait lock + + /* Enable PLL0 */ + scif_pll_enable(SCIF_PLL0); + + /* Wait for PLL0 locked */ + scif_wait_for_pll_locked(SCIF_PLL0) ; + + rest = pll_freq; + while (rest > AVR32_PM_PBA_MAX_FREQ || + rest != param->pba_f) + { + div2_pba++; + rest = pll_freq / (1 << div2_pba); + if (rest < param->pba_f) + break; + } + + // Update real PBA Frequency + param->pba_f = pll_freq / (1 << div2_pba); + + + if (div2_cpu) + { + b_div2_cpu = TRUE; + div2_cpu--; + } + else + b_div2_cpu = FALSE; + + if (div2_pba) + { + b_div2_pba = TRUE; + div2_pba--; + } + else + b_div2_pba = FALSE; + + if (b_div2_cpu == TRUE ) + { + pm_set_clk_domain_div(PM_CLK_DOMAIN_0, (pm_divratio_t) div2_cpu); // CPU + pm_set_clk_domain_div(PM_CLK_DOMAIN_1, (pm_divratio_t) div2_cpu); // HSB + pm_set_clk_domain_div(PM_CLK_DOMAIN_3, (pm_divratio_t) div2_cpu); // PBB + } + if (b_div2_pba == TRUE ) + { + pm_set_clk_domain_div(PM_CLK_DOMAIN_2, (pm_divratio_t) div2_pba); // PBA + pm_set_clk_domain_div(PM_CLK_DOMAIN_4, (pm_divratio_t) div2_pba); // PBC + } + + // Set Flashc Wait State + flashc_set_flash_waitstate_and_readmode(param->cpu_f); + + // Set the main clock source as being PLL0. + pm_set_mclk_source(PM_CLK_SRC_PLL0); + + return PASS; +} +#endif // UC3C device-specific implementation + +long int pcl_switch_to_osc(pcl_osc_t osc, unsigned int fcrystal, unsigned int startup) +{ +#ifndef AVR32_PM_VERSION_RESETVALUE +// Implementation for UC3A, UC3A3, UC3B parts. + if(PCL_OSC0 == osc) + { + // Configure OSC0 in crystal mode, external crystal with a FOSC0 Hz frequency, + // enable the OSC0, set the main clock source as being OSC0. + pm_switch_to_osc0(&AVR32_PM, fcrystal, startup); + } + else + { + return PCL_NOT_SUPPORTED; + } +#else +// Implementation for UC3C, UC3L parts. + #if AVR32_PM_VERSION_RESETVALUE < 0x400 + return PCL_NOT_SUPPORTED; + #else + if(PCL_OSC0 == osc) + { + // Configure OSC0 in crystal mode, external crystal with a fcrystal Hz frequency. + scif_configure_osc_crystalmode(SCIF_OSC0, fcrystal); + // Enable the OSC0 + scif_enable_osc(SCIF_OSC0, startup, true); + // Set the Flash wait state and the speed read mode (depending on the target CPU frequency). +#if UC3L + flashcdw_set_flash_waitstate_and_readmode(fcrystal); +#elif UC3C + flashc_set_flash_waitstate_and_readmode(fcrystal); +#endif + // Set the main clock source as being OSC0. + pm_set_mclk_source(PM_CLK_SRC_OSC0); + } + else + { + return PCL_NOT_SUPPORTED; + } + #endif +#endif + return PASS; +} + +long int pcl_configure_usb_clock(void) +{ +#ifndef AVR32_PM_VERSION_RESETVALUE +// Implementation for UC3A, UC3A3, UC3B parts. + pm_configure_usb_clock(); + return PASS; +#else + #ifdef AVR32_PM_410_H_INCLUDED + const scif_pll_opt_t opt = { + .osc = SCIF_OSC0, // Sel Osc0 or Osc1 + .lockcount = 16, // lockcount in main clock for the PLL wait lock + .div = 1, // DIV=1 in the formula + .mul = 5, // MUL=7 in the formula + .pll_div2 = 1, // pll_div2 Divide the PLL output frequency by 2 (this settings does not change the FVCO value) + .pll_wbwdisable = 0, //pll_wbwdisable 1 Disable the Wide-Bandith Mode (Wide-Bandwith mode allow a faster startup time and out-of-lock time). 0 to enable the Wide-Bandith Mode. + .pll_freq = 1, // Set to 1 for VCO frequency range 80-180MHz, set to 0 for VCO frequency range 160-240Mhz. + }; + + /* Setup PLL1 on Osc0, mul=7 ,no divisor, lockcount=16, ie. 16Mhzx6 = 96MHz output */ + scif_pll_setup(SCIF_PLL1, opt); // lockcount in main clock for the PLL wait lock + + /* Enable PLL1 */ + scif_pll_enable(SCIF_PLL1); + + /* Wait for PLL1 locked */ + scif_wait_for_pll_locked(SCIF_PLL1) ; + + // Implementation for UC3C parts. + // Setup the generic clock for USB + scif_gc_setup(AVR32_SCIF_GCLK_USB, + SCIF_GCCTRL_PLL1, + AVR32_SCIF_GC_NO_DIV_CLOCK, + 0); + // Now enable the generic clock + scif_gc_enable(AVR32_SCIF_GCLK_USB); + return PASS; + #else + return PCL_NOT_SUPPORTED; + #endif +#endif +} + + +#if UC3L +#else +void pcl_write_gplp(unsigned long gplp, unsigned long value) +{ +#ifndef AVR32_PM_VERSION_RESETVALUE +// Implementation for UC3A, UC3A3, UC3B parts. + pm_write_gplp(&AVR32_PM,gplp,value); +#else + scif_write_gplp(gplp,value); +#endif +} + +unsigned long pcl_read_gplp(unsigned long gplp) +{ +#ifndef AVR32_PM_VERSION_RESETVALUE +// Implementation for UC3A, UC3A3, UC3B parts. + return pm_read_gplp(&AVR32_PM,gplp); +#else + return scif_read_gplp(gplp); +#endif +} +#endif diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/PM/power_clocks_lib.h b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/PM/power_clocks_lib.h new file mode 100644 index 0000000..28c5888 --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/PM/power_clocks_lib.h @@ -0,0 +1,379 @@ +/* This header file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file has been prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief High-level library abstracting features such as oscillators/pll/dfll + * configuration, clock configuration, System-sensible parameters + * configuration, buses clocks configuration, sleep mode, reset. + * + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + *****************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#ifndef _POWER_CLOCKS_LIB_H_ +#define _POWER_CLOCKS_LIB_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +#include <avr32/io.h> +#include "compiler.h" + +#ifndef AVR32_PM_VERSION_RESETVALUE +// Support for UC3A, UC3A3, UC3B parts. + #include "pm.h" +#else +//! Device-specific data +#if UC3L + #include "pm_uc3l.h" + #include "scif_uc3l.h" + #include "flashcdw.h" +#elif UC3C + #include "pm_uc3c.h" + #include "scif_uc3c.h" + #include "flashc.h" +#endif +#endif + +/*! \name Clocks Management + */ +//! @{ + +//! The different oscillators +typedef enum +{ + PCL_OSC0 = 0, + PCL_OSC1 = 1 +} pcl_osc_t; + +//! The different DFLLs +typedef enum +{ + PCL_DFLL0 = 0, + PCL_DFLL1 = 1 +} pcl_dfll_t; + +//! Possible Main Clock Sources +typedef enum +{ + PCL_MC_RCSYS, // Default main clock source, supported by all (aka Slow Clock) + PCL_MC_OSC0, // Supported by all + PCL_MC_OSC1, // Supported by UC3C only + PCL_MC_OSC0_PLL0, // Supported by UC3A, UC3B, UC3A3, UC3C (the main clock source is PLL0 with OSC0 as reference) + PCL_MC_OSC1_PLL0, // Supported by UC3A, UC3B, UC3A3, UC3C (the main clock source is PLL0 with OSC1 as reference) + PCL_MC_OSC0_PLL1, // Supported by UC3C (the main clock source is PLL1 with OSC0 as reference) + PCL_MC_OSC1_PLL1, // Supported by UC3C (the main clock source is PLL1 with OSC1 as reference) + PCL_MC_DFLL0, // Supported by UC3L + PCL_MC_DFLL1, // Not supported yet + PCL_MC_RC120M, // Supported by UC3L, UC3C + PCL_MC_RC8M, // Supported by UC3C + PCL_MC_CRIPOSC // Supported by UC3C +} pcl_mainclk_t; + +//! Input and output parameters to configure clocks with pcl_configure_clocks(). +// NOTE: regarding the frequency settings, always abide by the datasheet rules and min & max supported frequencies. +#ifndef AVR32_PM_VERSION_RESETVALUE +// Support for UC3A, UC3A3, UC3B parts. +#define pcl_freq_param_t pm_freq_param_t // See pm.h +#else +// Support for UC3C, UC3L parts. +typedef struct +{ + //! Main clock source selection (input argument). + pcl_mainclk_t main_clk_src; + + //! Target CPU frequency (input/output argument). + unsigned long cpu_f; + + //! Target PBA frequency (input/output argument). + unsigned long pba_f; + + //! Target PBB frequency (input/output argument). + unsigned long pbb_f; + + //! Target PBC frequency (input/output argument). + unsigned long pbc_f; + + //! Oscillator 0's external crystal(or external clock) frequency (board dependant) (input argument). + unsigned long osc0_f; + + //! Oscillator 0's external crystal(or external clock) startup time: AVR32_PM_OSCCTRL0_STARTUP_x_RCOSC (input argument). + unsigned long osc0_startup; + + //! DFLL target frequency (input/output argument) (NOTE: the bigger, the most stable the frequency) + unsigned long dfll_f; + + //! Other parameters that might be necessary depending on the device (implementation-dependent). + // For the UC3L DFLL setup, this parameter should be pointing to a structure of + // type (scif_gclk_opt_t *). + void *pextra_params; +} pcl_freq_param_t; +#endif + +//! Define "not supported" for the lib. +#define PCL_NOT_SUPPORTED (-10000) + +/*! \brief Automatically configure the CPU, PBA, PBB, and HSB clocks + * + * This function needs some parameters stored in a pcl_freq_param_t structure: + * - main_clk_src is the id of the main clock source to use, + * - cpu_f and pba_f and pbb_f are the wanted frequencies, + * - osc0_f is the oscillator 0's external crystal (or external clock) on-board frequency (e.g. FOSC0), + * - osc0_startup is the oscillator 0's external crystal (or external clock) startup time (e.g. OSC0_STARTUP). + * - dfll_f is the target DFLL frequency to set-up if main_clk_src is the dfll. + * + * The CPU, HSB and PBA frequencies programmed after configuration are stored back into cpu_f and pba_f. + * + * \note: since it is dynamically computing the appropriate field values of the + * configuration registers from the parameters structure, this function is not + * optimal in terms of code size. For a code size optimal solution, it is better + * to create a new function from pcl_configure_clocks() and modify it to use + * preprocessor computation from pre-defined target frequencies. + * + * \param param pointer on the configuration structure. + * + * \retval 0 Success. + * \retval <0 The configuration cannot be performed. + */ +extern long int pcl_configure_clocks(pcl_freq_param_t *param); + +/*! \brief Automatically configure the CPU, PBA, PBB, and HSB clocks using the RCSYS osc as main source clock. + * + * This function needs some parameters stored in a pcl_freq_param_t structure: + * - cpu_f and pba_f and pbb_f are the wanted frequencies + * + * Supported main clock sources: PCL_MC_RCSYS + * + * Supported synchronous clocks frequencies: + * 115200Hz, 57600Hz, 28800Hz, 14400Hz, 7200Hz, 3600Hz, 1800Hz, 900Hz, 450Hz. + * + * \note: by default, this implementation doesn't perform thorough checks on the + * input parameters. To enable the checks, define AVR32SFW_INPUT_CHECK. + * + * \note: since it is dynamically computing the appropriate field values of the + * configuration registers from the parameters structure, this function is not + * optimal in terms of code size. For a code size optimal solution, it is better + * to create a new function from pcl_configure_clocks_rcsys() and modify it to use + * preprocessor computation from pre-defined target frequencies. + * + * \param param pointer on the configuration structure. + * + * \retval 0 Success. + * \retval <0 The configuration cannot be performed. + */ +extern long int pcl_configure_clocks_rcsys(pcl_freq_param_t *param); + +/*! \brief Automatically configure the CPU, PBA, PBB, and HSB clocks using the RC120M osc as main source clock. + * + * This function needs some parameters stored in a pcl_freq_param_t structure: + * - cpu_f and pba_f and pbb_f are the wanted frequencies + * + * Supported main clock sources: PCL_MC_RC120M + * + * Supported synchronous clocks frequencies: + * 30MHz, 15MHz, 7.5MHz, 3.75MHz, 1.875MHz, 937.5kHz, 468.75kHz. + * + * \note: by default, this implementation doesn't perform thorough checks on the + * input parameters. To enable the checks, define AVR32SFW_INPUT_CHECK. + * + * \note: since it is dynamically computing the appropriate field values of the + * configuration registers from the parameters structure, this function is not + * optimal in terms of code size. For a code size optimal solution, it is better + * to create a new function from pcl_configure_clocks_rc120m() and modify it to + * use preprocessor computation from pre-defined target frequencies. + * + * \param param pointer on the configuration structure. + * + * \retval 0 Success. + * \retval <0 The configuration cannot be performed. + */ +extern long int pcl_configure_clocks_rc120m(pcl_freq_param_t *param); + +/*! \brief Automatically configure the CPU, PBA, PBB, and HSB clocks using the OSC0 osc as main source clock + * + * This function needs some parameters stored in a pcl_freq_param_t structure: + * - cpu_f and pba_f and pbb_f are the wanted frequencies, + * - osc0_f is the oscillator 0's external crystal (or external clock) on-board frequency (e.g. FOSC0), + * - osc0_startup is the oscillator 0's external crystal (or external clock) startup time (e.g. OSC0_STARTUP). + * + * Supported main clock sources: PCL_MC_OSC0 + * + * Supported synchronous clocks frequencies: + * (these obviously depend on the OSC0 frequency; we'll take 16MHz as an example) + * 16MHz, 8MHz, 4MHz, 2MHz, 1MHz, 500kHz, 250kHz, 125kHz, 62.5kHz. + * + * \note: by default, this implementation doesn't perform thorough checks on the + * input parameters. To enable the checks, define AVR32SFW_INPUT_CHECK. + * + * \note: since it is dynamically computing the appropriate field values of the + * configuration registers from the parameters structure, this function is not + * optimal in terms of code size. For a code size optimal solution, it is better + * to create a new function from pcl_configure_clocks_osc0() and modify it to use + * preprocessor computation from pre-defined target frequencies. + * + * \param param pointer on the configuration structure. + * + * \retval 0 Success. + * \retval <0 The configuration cannot be performed. + */ +extern long int pcl_configure_clocks_osc0(pcl_freq_param_t *param); + +/*! \brief Automatically configure the CPU, PBA, PBB, and HSB clocks using the DFLL0 as main source clock + * + * This function needs some parameters stored in a pcl_freq_param_t structure: + * - cpu_f and pba_f and pbb_f are the wanted frequencies, + * - dfll_f is the target DFLL frequency to set-up + * + * \note: when the DFLL0 is to be used as main source clock for the synchronous clocks, + * the target frequency of the DFLL should be chosen to be as high as possible + * within the specification range (for stability reasons); the target cpu and pbx + * frequencies will then be reached by appropriate division ratio. + * + * Supported main clock sources: PCL_MC_DFLL0 + * + * Supported synchronous clocks frequencies: + * (these obviously depend on the DFLL target frequency; we'll take 100MHz as an example) + * 50MHz, 25MHz, 12.5MHz, 6.25MHz, 3.125MHz, 1562.5kHz, 781.25kHz, 390.625kHz. + * + * \note: by default, this implementation doesn't perform thorough checks on the + * input parameters. To enable the checks, define AVR32SFW_INPUT_CHECK. + * + * \note: since it is dynamically computing the appropriate field values of the + * configuration registers from the parameters structure, this function is not + * optimal in terms of code size. For a code size optimal solution, it is better + * to create a new function from pcl_configure_clocks_dfll0() and modify it to + * use preprocessor computation from pre-defined target frequencies. + * + * \param param pointer on the configuration structure. + * + * \retval 0 Success. + * \retval <0 The configuration cannot be performed. + */ +extern long int pcl_configure_clocks_dfll0(pcl_freq_param_t *param); + +/*! \brief Switch the main clock source to Osc0 configured in crystal mode + * + * \param osc The oscillator to enable and switch to. + * \param fcrystal Oscillator external crystal frequency (Hz) + * \param startup Oscillator startup time. + * + * \return Status. + * \retval 0 Success. + * \retval <0 An error occured. + */ +extern long int pcl_switch_to_osc(pcl_osc_t osc, unsigned int fcrystal, unsigned int startup); + +/*! \brief Enable the clock of a module. + * + * \param module The module to clock (use one of the defines in the part-specific + * header file under "toolchain folder"/avr32/inc(lude)/avr32/; depending on the + * clock domain, look for the sections "CPU clocks", "HSB clocks", "PBx clocks" + * or look in the module section). + * + * \return Status. + * \retval 0 Success. + * \retval <0 An error occured. + */ +#ifndef AVR32_PM_VERSION_RESETVALUE +// Implementation for UC3A, UC3A3, UC3B parts. +#define pcl_enable_module(module) pm_enable_module(&AVR32_PM, module) +#else +// Implementation for UC3C, UC3L parts. +#define pcl_enable_module(module) pm_enable_module(module) +#endif + +/*! \brief Disable the clock of a module. + * + * \param module The module to shut down (use one of the defines in the part-specific + * header file under "toolchain folder"/avr32/inc(lude)/avr32/; depending on the + * clock domain, look for the sections "CPU clocks", "HSB clocks", "PBx clocks" + * or look in the module section). + * + * \return Status. + * \retval 0 Success. + * \retval <0 An error occured. + */ +#ifndef AVR32_PM_VERSION_RESETVALUE +// Implementation for UC3A, UC3A3, UC3B parts. +#define pcl_disable_module(module) pm_disable_module(&AVR32_PM, module) +#else +// Implementation for UC3C, UC3L parts. +#define pcl_disable_module(module) pm_disable_module(module) +#endif + +/*! \brief Configure the USB Clock + * + * + * \return Status. + * \retval 0 Success. + * \retval <0 An error occured. + */ +extern long int pcl_configure_usb_clock(void); + +//! @} + +/*! \name Power Management + */ +//! @{ +/*! + * \brief Read the content of the GPLP registers + * \param gplp GPLP register index (0,1,... depending on the number of GPLP registers for a given part) + * + * \return The content of the chosen GPLP register. + */ +extern unsigned long pcl_read_gplp(unsigned long gplp); + + +/*! + * \brief Write into the GPLP registers + * \param gplp GPLP register index (0,1,... depending on the number of GPLP registers for a given part) + * \param value Value to write + */ +extern void pcl_write_gplp(unsigned long gplp, unsigned long value); + +//! @} + +#ifdef __cplusplus +} +#endif + +#endif // _POWER_CLOCKS_LIB_H_ diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/RTC/rtc.c b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/RTC/rtc.c new file mode 100644 index 0000000..4cbae0f --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/RTC/rtc.c @@ -0,0 +1,213 @@ +/* This source file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file is prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief RTC driver for AVR32 UC3. + * + * AVR32 Real Time Counter driver module. + * + * - Compiler: GNU GCC for AVR32 + * - Supported devices: All AVR32 devices with an RTC and a PM module can be used. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + ******************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#include <avr32/io.h> +#include "compiler.h" +#include "pm.h" +#include "rtc.h" + + +int rtc_is_busy(volatile avr32_rtc_t *rtc) +{ + return (rtc->ctrl & AVR32_RTC_CTRL_BUSY_MASK) != 0; +} + + +int rtc_init(volatile avr32_rtc_t *rtc, unsigned char osc_type, unsigned char psel) +{ + // If exit, it means that the configuration has not been set correctly + if (osc_type > (1 << AVR32_RTC_CTRL_CLK32_SIZE) - 1 || + psel > (1 << AVR32_RTC_CTRL_PSEL_SIZE) - 1) + return 0; + + // If we use the 32-kHz oscillator, we have to enable it first + if (osc_type == RTC_OSC_32KHZ) + { + // Select the 32-kHz oscillator crystal + pm_enable_osc32_crystal(&AVR32_PM); + // Enable the 32-kHz clock + pm_enable_clk32_no_wait(&AVR32_PM, AVR32_PM_OSCCTRL32_STARTUP_0_RCOSC); + } + + // Wait until the rtc CTRL register is up-to-date + while (rtc_is_busy(rtc)); + + // Set the new RTC configuration + rtc->ctrl = osc_type << AVR32_RTC_CTRL_CLK32_OFFSET | + psel << AVR32_RTC_CTRL_PSEL_OFFSET | + AVR32_RTC_CTRL_CLKEN_MASK; + + // Wait until write is done + while (rtc_is_busy(rtc)); + + // Set the counter value to 0 + rtc_set_value(rtc, 0x00000000); + // Set the top value to 0xFFFFFFFF + rtc_set_top_value(rtc, 0xFFFFFFFF); + + return 1; +} + + +void rtc_set_value(volatile avr32_rtc_t *rtc, unsigned long val) +{ + // Wait until we can write into the VAL register + while (rtc_is_busy(rtc)); + // Set the new val value + rtc->val = val; + // Wait until write is done + while (rtc_is_busy(rtc)); +} + + +unsigned long rtc_get_value(volatile avr32_rtc_t *rtc) +{ + return rtc->val; +} + + +void rtc_enable_wake_up(volatile avr32_rtc_t *rtc) +{ + // Wait until the rtc CTRL register is up-to-date + while (rtc_is_busy(rtc)); + // Enable the wake up of the RTC + rtc->ctrl |= AVR32_RTC_CTRL_WAKE_EN_MASK; + // Wait until write is done + while (rtc_is_busy(rtc)); +} + + +void rtc_disable_wake_up(volatile avr32_rtc_t *rtc) +{ + // Wait until the rtc CTRL register is up-to-date + while (rtc_is_busy(rtc)); + // Disable the wake up of the RTC + rtc->ctrl &= ~AVR32_RTC_CTRL_WAKE_EN_MASK; + // Wait until write is done + while (rtc_is_busy(rtc)); +} + + +void rtc_enable(volatile avr32_rtc_t *rtc) +{ + // Wait until the rtc CTRL register is up-to-date + while (rtc_is_busy(rtc)); + // Enable the RTC + rtc->ctrl |= AVR32_RTC_CTRL_EN_MASK; + // Wait until write is done + while (rtc_is_busy(rtc)); +} + + +void rtc_disable(volatile avr32_rtc_t *rtc) +{ + // Wait until the rtc CTRL register is up-to-date + while (rtc_is_busy(rtc)); + // Disable the RTC + rtc->ctrl &= ~AVR32_RTC_CTRL_EN_MASK; + // Wait until write is done + while (rtc_is_busy(rtc)); +} + + +void rtc_enable_interrupt(volatile avr32_rtc_t *rtc) +{ + rtc->ier = AVR32_RTC_IER_TOPI_MASK; +} + + +void rtc_disable_interrupt(volatile avr32_rtc_t *rtc) +{ + Bool global_interrupt_enabled = Is_global_interrupt_enabled(); + + if (global_interrupt_enabled) Disable_global_interrupt(); + rtc->idr = AVR32_RTC_IDR_TOPI_MASK; + rtc->imr; + if (global_interrupt_enabled) Enable_global_interrupt(); +} + + +void rtc_clear_interrupt(volatile avr32_rtc_t *rtc) +{ + Bool global_interrupt_enabled = Is_global_interrupt_enabled(); + + if (global_interrupt_enabled) Disable_global_interrupt(); + rtc->icr = AVR32_RTC_ICR_TOPI_MASK; + rtc->isr; + if (global_interrupt_enabled) Enable_global_interrupt(); +} + + +void rtc_set_top_value(volatile avr32_rtc_t *rtc, unsigned long top) +{ + // Wait until we can write into the VAL register + while (rtc_is_busy(rtc)); + // Set the new val value + rtc->top = top; + // Wait until write is done + while (rtc_is_busy(rtc)); +} + + +unsigned long rtc_get_top_value(volatile avr32_rtc_t *rtc) +{ + return rtc->top; +} + + +int rtc_interrupt_enabled(volatile avr32_rtc_t *rtc) +{ + return (rtc->imr & AVR32_RTC_IMR_TOPI_MASK) != 0; +} + + +int rtc_is_interrupt(volatile avr32_rtc_t *rtc) +{ + return (rtc->isr & AVR32_RTC_ISR_TOPI_MASK) != 0; +} diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/RTC/rtc.h b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/RTC/rtc.h new file mode 100644 index 0000000..5702c29 --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/RTC/rtc.h @@ -0,0 +1,191 @@ +/* This header file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file is prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief RTC driver for AVR32 UC3. + * + * AVR32 Real Time Counter driver module. + * + * - Compiler: GNU GCC for AVR32 + * - Supported devices: All AVR32 devices with an RTC and a PM module can be used. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + ******************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#ifndef _RTC_H_ +#define _RTC_H_ + +#include "compiler.h" +#include <avr32/io.h> + + +/*! \name Oscillator Types + */ +//! @{ +#define RTC_OSC_32KHZ 1 +#define RTC_OSC_RC 0 +//! @} + +/*! \name Predefined PSEL Values + */ +//! @{ + +//! The PSEL value to set the RTC source clock (after the prescaler) to 1 Hz, +//! when using an external 32-kHz crystal. +#define RTC_PSEL_32KHZ_1HZ 14 + +//! The PSEL value to set the RTC source clock (after the prescaler) to 1.76 Hz, +//! when using the internal RC oscillator (~ 115 kHz). +#define RTC_PSEL_RC_1_76HZ 15 + +//! @} + + +/*! + * \brief This function will initialise the RTC module. + * If you use the 32 KHz oscillator, it will enable this module. + * This function also set the top value of the RTC to 0xFFFFFFFF + * and the value to 0. + * \param rtc Base address of the RTC (i.e. &AVR32_RTC). + * \param osc_type The oscillator you want to use. If you need a better + * accuracy, use the 32 KHz oscillator (i.e. RTC_OSC_32KHZ). + * \param psel The preselector value for the corresponding oscillator (4-bits). + * To obtain this value, you can use this formula: + * psel = log(Fosc/Frtc)/log(2)-1, where Fosc is the frequency of the + * oscillator you are using (32 KHz or 115 KHz) and Frtc the frequency + * desired. + * \return 1 if the initialisation succeds otherwize it will return 0. + */ +extern int rtc_init(volatile avr32_rtc_t *rtc, unsigned char osc_type, unsigned char psel); + +/*! + * \brief Enable the RTC. + * \param rtc Base address of the RTC (i.e. &AVR32_RTC). + */ +extern void rtc_enable(volatile avr32_rtc_t *rtc); + +/*! + * \brief Disable the RTC. + * \param rtc Base address of the RTC (i.e. &AVR32_RTC). + */ +extern void rtc_disable(volatile avr32_rtc_t *rtc); + +/*! + * \brief Enable the wake up feature of the RTC. + * \param rtc Base address of the RTC (i.e. &AVR32_RTC). + */ +extern void rtc_enable_wake_up(volatile avr32_rtc_t *rtc); + +/*! + * \brief Disable the wake up feature of the RTC. + * \param rtc Base address of the RTC (i.e. &AVR32_RTC). + */ +extern void rtc_disable_wake_up(volatile avr32_rtc_t *rtc); + +/*! + * \brief Enable the interrupt feature of the RTC. + * An interrupt is raised when the value of the RTC + * is equal to its top value. + * \param rtc Base address of the RTC (i.e. &AVR32_RTC). + */ +extern void rtc_enable_interrupt(volatile avr32_rtc_t *rtc); + +/*! + * \brief Disable the interrupt feature of the RTC. + * \param rtc Base address of the RTC (i.e. &AVR32_RTC). + */ +extern void rtc_disable_interrupt(volatile avr32_rtc_t *rtc); + +/*! + * \brief Clear the interrupt flag. + * Call this function once you handled the interrupt. + * \param rtc Base address of the RTC (i.e. &AVR32_RTC). + */ +extern void rtc_clear_interrupt(volatile avr32_rtc_t *rtc); + +/*! + * \brief Get the status of interrupts. + * \param rtc Base address of the RTC (i.e. &AVR32_RTC). + * \return 1 if the interrupts are enabled otherwize it returns 0. + */ +extern int rtc_interrupt_enabled(volatile avr32_rtc_t *rtc); + +/*! + * \brief Check if an interrupt is raised. + * \param rtc Base address of the RTC (i.e. &AVR32_RTC). + * \return 1 if an interrupt is currently raised otherwize it returns 0. + */ +extern int rtc_is_interrupt(volatile avr32_rtc_t *rtc); + +/*! + * \brief This function sets the RTC current top value. + * \param rtc Base address of the RTC (i.e. &AVR32_RTC). + * \param top The top value you want to store. + */ +extern void rtc_set_top_value(volatile avr32_rtc_t *rtc, unsigned long top); + +/*! + * \brief This function returns the RTC current top value. + * \param rtc Base address of the RTC (i.e. &AVR32_RTC). + * \return The RTC current top value. + */ +extern unsigned long rtc_get_top_value(volatile avr32_rtc_t *rtc); + +/*! + * \brief This function checks if the RTC is busy or not. + * \param rtc Base address of the RTC (i.e. &AVR32_RTC). + * \return 1 if the RTC is busy otherwize it will return 0. + */ +extern int rtc_is_busy(volatile avr32_rtc_t *rtc); + +/*! + * \brief This function sets the RTC current value. + * \param rtc Base address of the RTC (i.e. &AVR32_RTC). + * \param val The value you want to store. + */ +extern void rtc_set_value(volatile avr32_rtc_t *rtc, unsigned long val); + +/*! + * \brief This function returns the RTC current value. + * \param rtc Base address of the RTC (i.e. &AVR32_RTC). + * \return The RTC current value. + */ +extern unsigned long rtc_get_value(volatile avr32_rtc_t *rtc); + + +#endif // _RTC_H_ diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/SPI/spi.c b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/SPI/spi.c new file mode 100644 index 0000000..d2b7ccd --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/SPI/spi.c @@ -0,0 +1,443 @@ +/* This source file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file is prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief SPI driver for AVR32 UC3. + * + * This file defines a useful set of functions for the SPI interface on AVR32 + * devices. + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices with an SPI module can be used. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + ******************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#include "spi.h" + +#ifdef FREERTOS_USED + +#include "FreeRTOS.h" +#include "semphr.h" + +#endif + + +/*! \name SPI Writable Bit-Field Registers + */ +//! @{ + +typedef union +{ + unsigned long cr; + avr32_spi_cr_t CR; +} u_avr32_spi_cr_t; + +typedef union +{ + unsigned long mr; + avr32_spi_mr_t MR; +} u_avr32_spi_mr_t; + +typedef union +{ + unsigned long tdr; + avr32_spi_tdr_t TDR; +} u_avr32_spi_tdr_t; + +typedef union +{ + unsigned long ier; + avr32_spi_ier_t IER; +} u_avr32_spi_ier_t; + +typedef union +{ + unsigned long idr; + avr32_spi_idr_t IDR; +} u_avr32_spi_idr_t; + +typedef union +{ + unsigned long csr; + avr32_spi_csr0_t CSR; +} u_avr32_spi_csr_t; + +//! @} + + +#ifdef FREERTOS_USED + +//! The SPI mutex. +static xSemaphoreHandle xSPIMutex; + +#endif + + +/*! \brief Calculates the baudrate divider. + * + * \param options Pointer to a structure containing initialization options for + * an SPI channel. + * \param pba_hz SPI module input clock frequency (PBA clock, Hz). + * + * \return Divider or error code. + * \retval >=0 Success. + * \retval <0 Error. + */ +static int getBaudDiv(const spi_options_t *options, unsigned int pba_hz) +{ + int baudDiv = (pba_hz + options->baudrate / 2) / options->baudrate; + + if (baudDiv <= 0 || baudDiv > 255) { + return -1; + } + + return baudDiv; +} + + +void spi_reset(volatile avr32_spi_t *spi) +{ + spi->cr = AVR32_SPI_CR_SWRST_MASK; +} + + +spi_status_t spi_initSlave(volatile avr32_spi_t *spi, + unsigned char bits, + unsigned char spi_mode) +{ + if (spi_mode > 3 || + bits < 8 || bits > 16) { + return SPI_ERROR_ARGUMENT; + } + + // Reset. + spi->cr = AVR32_SPI_CR_SWRST_MASK; + + // Will use CSR0 offsets; these are the same for CSR0 to CSR3. + spi->csr0 = ((spi_mode >> 1) << AVR32_SPI_CSR0_CPOL_OFFSET) | + (((spi_mode & 0x1) ^ 0x1) << AVR32_SPI_CSR0_NCPHA_OFFSET) | + ((bits - 8) << AVR32_SPI_CSR0_BITS_OFFSET); + + return SPI_OK; +} + + +spi_status_t spi_initTest(volatile avr32_spi_t *spi) +{ + // Reset. + spi->cr = AVR32_SPI_CR_SWRST_MASK; + spi->mr |= AVR32_SPI_MR_MSTR_MASK | // Master Mode. + AVR32_SPI_MR_LLB_MASK; // Local Loopback. + + return SPI_OK; +} + + +spi_status_t spi_initMaster(volatile avr32_spi_t *spi, const spi_options_t *options) +{ + u_avr32_spi_mr_t u_avr32_spi_mr; + + if (options->modfdis > 1) { + return SPI_ERROR_ARGUMENT; + } + + // Reset. + spi->cr = AVR32_SPI_CR_SWRST_MASK; + + // Master Mode. + u_avr32_spi_mr.mr = spi->mr; + u_avr32_spi_mr.MR.mstr = 1; + u_avr32_spi_mr.MR.modfdis = options->modfdis; + u_avr32_spi_mr.MR.llb = 0; + u_avr32_spi_mr.MR.pcs = (1 << AVR32_SPI_MR_PCS_SIZE) - 1; + spi->mr = u_avr32_spi_mr.mr; + + return SPI_OK; +} + + +spi_status_t spi_selectionMode(volatile avr32_spi_t *spi, + unsigned char variable_ps, + unsigned char pcs_decode, + unsigned char delay) +{ + u_avr32_spi_mr_t u_avr32_spi_mr; + + if (variable_ps > 1 || + pcs_decode > 1) { + return SPI_ERROR_ARGUMENT; + } + + u_avr32_spi_mr.mr = spi->mr; + u_avr32_spi_mr.MR.ps = variable_ps; + u_avr32_spi_mr.MR.pcsdec = pcs_decode; + u_avr32_spi_mr.MR.dlybcs = delay; + spi->mr = u_avr32_spi_mr.mr; + + return SPI_OK; +} + + +spi_status_t spi_selectChip(volatile avr32_spi_t *spi, unsigned char chip) +{ +#ifdef FREERTOS_USED + while (pdFALSE == xSemaphoreTake(xSPIMutex, 20)); +#endif + + // Assert all lines; no peripheral is selected. + spi->mr |= AVR32_SPI_MR_PCS_MASK; + + if (spi->mr & AVR32_SPI_MR_PCSDEC_MASK) { + // The signal is decoded; allow up to 15 chips. + if (chip > 14) { + return SPI_ERROR_ARGUMENT; + } + + spi->mr &= ~AVR32_SPI_MR_PCS_MASK | (chip << AVR32_SPI_MR_PCS_OFFSET); + } else { + if (chip > 3) { + return SPI_ERROR_ARGUMENT; + } + + spi->mr &= ~(1 << (AVR32_SPI_MR_PCS_OFFSET + chip)); + } + + return SPI_OK; +} + + +spi_status_t spi_unselectChip(volatile avr32_spi_t *spi, unsigned char chip) +{ + unsigned int timeout = SPI_TIMEOUT; + + while (!(spi->sr & AVR32_SPI_SR_TXEMPTY_MASK)) { + if (!timeout--) { + return SPI_ERROR_TIMEOUT; + } + } + + // Assert all lines; no peripheral is selected. + spi->mr |= AVR32_SPI_MR_PCS_MASK; + + // Last transfer, so deassert the current NPCS if CSAAT is set. + spi->cr = AVR32_SPI_CR_LASTXFER_MASK; + +#ifdef FREERTOS_USED + xSemaphoreGive(xSPIMutex); +#endif + + return SPI_OK; +} + + +spi_status_t spi_setupChipReg(volatile avr32_spi_t *spi, + const spi_options_t *options, + unsigned int pba_hz) +{ + u_avr32_spi_csr_t u_avr32_spi_csr; + + if (options->spi_mode > 3 || + options->stay_act > 1 || + options->bits < 8 || options->bits > 16) { + return SPI_ERROR_ARGUMENT; + } + + int baudDiv = getBaudDiv(options, pba_hz); + + if (baudDiv < 0) { + return SPI_ERROR_ARGUMENT; + } + + // Will use CSR0 offsets; these are the same for CSR0 to CSR3. + u_avr32_spi_csr.csr = 0; + u_avr32_spi_csr.CSR.cpol = options->spi_mode >> 1; + u_avr32_spi_csr.CSR.ncpha = (options->spi_mode & 0x1) ^ 0x1; + u_avr32_spi_csr.CSR.csaat = options->stay_act; + u_avr32_spi_csr.CSR.bits = options->bits - 8; + u_avr32_spi_csr.CSR.scbr = baudDiv; + u_avr32_spi_csr.CSR.dlybs = options->spck_delay; + u_avr32_spi_csr.CSR.dlybct = options->trans_delay; + + switch(options->reg) { + case 0: + spi->csr0 = u_avr32_spi_csr.csr; + break; + case 1: + spi->csr1 = u_avr32_spi_csr.csr; + break; + case 2: + spi->csr2 = u_avr32_spi_csr.csr; + break; + case 3: + spi->csr3 = u_avr32_spi_csr.csr; + break; + default: + return SPI_ERROR_ARGUMENT; + } + +#ifdef FREERTOS_USED + if (!xSPIMutex) + { + // Create the SPI mutex. + vSemaphoreCreateBinary(xSPIMutex); + if (!xSPIMutex) + { + while(1); + } + } +#endif + + return SPI_OK; +} + + +void spi_enable(volatile avr32_spi_t *spi) +{ + spi->cr = AVR32_SPI_CR_SPIEN_MASK; +} + + +void spi_disable(volatile avr32_spi_t *spi) +{ + spi->cr = AVR32_SPI_CR_SPIDIS_MASK; +} + + +int spi_is_enabled(volatile avr32_spi_t *spi) +{ + return (spi->sr & AVR32_SPI_SR_SPIENS_MASK) != 0; +} + + +inline unsigned char spi_writeRegisterEmptyCheck(volatile avr32_spi_t *spi) +{ + return ((spi->sr & AVR32_SPI_SR_TDRE_MASK) != 0); +} + + +inline spi_status_t spi_write(volatile avr32_spi_t *spi, unsigned short data) +{ + unsigned int timeout = SPI_TIMEOUT; + + while (!(spi->sr & AVR32_SPI_SR_TDRE_MASK)) { + if (!timeout--) { + return SPI_ERROR_TIMEOUT; + } + } + + spi->tdr = data << AVR32_SPI_TDR_TD_OFFSET; + + return SPI_OK; +} + + +spi_status_t spi_variableSlaveWrite(volatile avr32_spi_t *spi, unsigned short data, + unsigned char pcs, unsigned char lastxfer) +{ + unsigned int timeout = SPI_TIMEOUT; + + if (pcs > 14 || lastxfer > 1) { + return SPI_ERROR_ARGUMENT; + } + + while (!(spi->sr & AVR32_SPI_SR_TDRE_MASK)) { + if (!timeout--) { + return SPI_ERROR_TIMEOUT; + } + } + + spi->tdr = (data << AVR32_SPI_TDR_TD_OFFSET) | + (pcs << AVR32_SPI_TDR_PCS_OFFSET) | + (lastxfer << AVR32_SPI_TDR_LASTXFER_OFFSET); + + return SPI_OK; +} + + +inline unsigned char spi_writeEndCheck(volatile avr32_spi_t *spi) +{ + return ((spi->sr & AVR32_SPI_SR_TXEMPTY_MASK) != 0); +} + + +unsigned char spi_readRegisterFullCheck(volatile avr32_spi_t *spi) +{ + return ((spi->sr & AVR32_SPI_SR_RDRF_MASK) != 0); +} + + +inline spi_status_t spi_read(volatile avr32_spi_t *spi, unsigned short *data) +{ + unsigned int timeout = SPI_TIMEOUT; + + while ((spi->sr & (AVR32_SPI_SR_RDRF_MASK | AVR32_SPI_SR_TXEMPTY_MASK)) != + (AVR32_SPI_SR_RDRF_MASK | AVR32_SPI_SR_TXEMPTY_MASK)) { + if (!timeout--) { + return SPI_ERROR_TIMEOUT; + } + } + + *data = spi->rdr >> AVR32_SPI_RDR_RD_OFFSET; + + return SPI_OK; +} + + +unsigned char spi_getStatus(volatile avr32_spi_t *spi) +{ + spi_status_t ret = SPI_OK; + unsigned long sr = spi->sr; + + if (sr & AVR32_SPI_SR_OVRES_MASK) { + ret = SPI_ERROR_OVERRUN; + } + + if (sr & AVR32_SPI_SR_MODF_MASK) { + ret += SPI_ERROR_MODE_FAULT; + } + + if (ret == (SPI_ERROR_OVERRUN + SPI_ERROR_MODE_FAULT)) { + return SPI_ERROR_OVERRUN_AND_MODE_FAULT; + } + else if (ret > 0) { + return ret; + } else { + return SPI_OK; + } +} diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/SPI/spi.h b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/SPI/spi.h new file mode 100644 index 0000000..6dcc928 --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/SPI/spi.h @@ -0,0 +1,342 @@ +/* This header file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file is prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief SPI driver for AVR32 UC3. + * + * This file defines a useful set of functions for the SPI interface on AVR32 + * devices. + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices with an SPI module can be used. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + ******************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#ifndef _SPI_H_ +#define _SPI_H_ + +#include <avr32/io.h> + + +//! Time-out value (number of attempts). +#define SPI_TIMEOUT 10000 + + +//! Status codes used by the SPI driver. +typedef enum +{ + SPI_ERROR = -1, + SPI_OK = 0, + SPI_ERROR_TIMEOUT = 1, + SPI_ERROR_ARGUMENT, + SPI_ERROR_OVERRUN, + SPI_ERROR_MODE_FAULT, + SPI_ERROR_OVERRUN_AND_MODE_FAULT +} spi_status_t; + +//! Option structure for SPI channels. +typedef struct +{ + //! The SPI channel to set up. + unsigned char reg; + + //! Preferred baudrate for the SPI. + unsigned int baudrate; + + //! Number of bits in each character (8 to 16). + unsigned char bits; + + //! Delay before first clock pulse after selecting slave (in PBA clock periods). + unsigned char spck_delay; + + //! Delay between each transfer/character (in PBA clock periods). + unsigned char trans_delay; + + //! Sets this chip to stay active after last transfer to it. + unsigned char stay_act; + + //! Which SPI mode to use when transmitting. + unsigned char spi_mode; + + //! Disables the mode fault detection. + //! With this bit cleared, the SPI master mode will disable itself if another + //! master tries to address it. + unsigned char modfdis; +} spi_options_t; + + +/*! \brief Resets the SPI controller. + * + * \param spi Base address of the SPI instance. + */ +extern void spi_reset(volatile avr32_spi_t *spi); + +/*! \brief Initializes the SPI in slave mode. + * + * \param spi Base address of the SPI instance. + * \param bits Number of bits in each transmitted character (8 to 16). + * \param spi_mode Clock polarity and phase. + * + * \return Status. + * \retval SPI_OK Success. + * \retval SPI_ERROR_ARGUMENT Invalid argument(s) passed. + */ +extern spi_status_t spi_initSlave(volatile avr32_spi_t *spi, + unsigned char bits, + unsigned char spi_mode); + +/*! \brief Sets up the SPI in a test mode where the transmitter is connected to + * the receiver (local loopback). + * + * \param spi Base address of the SPI instance. + * + * \return Status. + * \retval SPI_OK Success. + */ +extern spi_status_t spi_initTest(volatile avr32_spi_t *spi); + +/*! \brief Initializes the SPI in master mode. + * + * \param spi Base address of the SPI instance. + * \param options Pointer to a structure containing initialization options. + * + * \return Status. + * \retval SPI_OK Success. + * \retval SPI_ERROR_ARGUMENT Invalid argument(s) passed. + */ +extern spi_status_t spi_initMaster(volatile avr32_spi_t *spi, const spi_options_t *options); + +/*! \brief Sets up how and when the slave chips are selected (master mode only). + * + * \param spi Base address of the SPI instance. + * \param variable_ps Target slave is selected in transfer register for every + * character to transmit. + * \param pcs_decode The four chip select lines are decoded externally. Values + * 0 to 14 can be given to \ref spi_selectChip. + * \param delay Delay in PBA periods between chip selects. + * + * \return Status. + * \retval SPI_OK Success. + * \retval SPI_ERROR_ARGUMENT Invalid argument(s) passed. + */ +extern spi_status_t spi_selectionMode(volatile avr32_spi_t *spi, + unsigned char variable_ps, + unsigned char pcs_decode, + unsigned char delay); + +/*! \brief Selects slave chip. + * + * \param spi Base address of the SPI instance. + * \param chip Slave chip number (normal: 0 to 3, extarnally decoded signal: 0 + * to 14). + * + * \return Status. + * \retval SPI_OK Success. + * \retval SPI_ERROR_ARGUMENT Invalid argument(s) passed. + */ +extern spi_status_t spi_selectChip(volatile avr32_spi_t *spi, unsigned char chip); + +/*! \brief Unselects slave chip. + * + * \param spi Base address of the SPI instance. + * \param chip Slave chip number (normal: 0 to 3, extarnally decoded signal: 0 + * to 14). + * + * \return Status. + * \retval SPI_OK Success. + * \retval SPI_ERROR_TIMEOUT Time-out. + * + * \note Will block program execution until time-out occurs if last transmission + * is not complete. Invoke \ref spi_writeEndCheck beforehand if needed. + */ +extern spi_status_t spi_unselectChip(volatile avr32_spi_t *spi, unsigned char chip); + +/*! \brief Sets options for a specific slave chip. + * + * The baudrate field has to be written before transfer in master mode. Four + * similar registers exist, one for each slave. When using encoded slave + * addressing, reg=0 sets options for slaves 0 to 3, reg=1 for slaves 4 to 7 and + * so on. + * + * \param spi Base address of the SPI instance. + * \param options Pointer to a structure containing initialization options for + * an SPI channel. + * \param pba_hz SPI module input clock frequency (PBA clock, Hz). + * + * \return Status. + * \retval SPI_OK Success. + * \retval SPI_ERROR_ARGUMENT Invalid argument(s) passed. + */ +extern spi_status_t spi_setupChipReg(volatile avr32_spi_t *spi, + const spi_options_t *options, + unsigned int pba_hz); + +/*! \brief Enables the SPI. + * + * \param spi Base address of the SPI instance. + */ +extern void spi_enable(volatile avr32_spi_t *spi); + +/*! \brief Disables the SPI. + * + * Ensures that nothing is transferred while setting up buffers. + * + * \param spi Base address of the SPI instance. + * + * \warning This may cause data loss if used on a slave SPI. + */ +extern void spi_disable(volatile avr32_spi_t *spi); + +/*! \brief Tests if the SPI is enabled. + * + * \param spi Base address of the SPI instance. + * + * \return \c 1 if the SPI is enabled, otherwise \c 0. + */ +extern int spi_is_enabled(volatile avr32_spi_t *spi); + +/*! \brief Checks if there is no data in the transmit register. + * + * \param spi Base address of the SPI instance. + * + * \return Status. + * \retval 1 No data in TDR. + * \retval 0 Some data in TDR. + */ +extern unsigned char spi_writeRegisterEmptyCheck(volatile avr32_spi_t *spi); + +/*! \brief Writes one data word in master fixed peripheral select mode or in + * slave mode. + * + * \param spi Base address of the SPI instance. + * \param data The data word to write. + * + * \return Status. + * \retval SPI_OK Success. + * \retval SPI_ERROR_TIMEOUT Time-out. + * + * \note Will block program execution until time-out occurs if transmitter is + * busy and transmit buffer is full. Invoke + * \ref spi_writeRegisterEmptyCheck beforehand if needed. + * + * \note Once the data has been written to the transmit buffer, the end of + * transmission is not waited for. Invoke \ref spi_writeEndCheck if + * needed. + */ +extern spi_status_t spi_write(volatile avr32_spi_t *spi, unsigned short data); + +/*! \brief Selects a slave in master variable peripheral select mode and writes + * one data word to it. + * + * \param spi Base address of the SPI instance. + * \param data The data word to write. + * \param pcs Slave selector (bit 0 -> nCS line 0, bit 1 -> nCS line 1, + * etc.). + * \param lastxfer Boolean indicating whether this is the last data word + * transfer. + * + * \return Status. + * \retval SPI_OK Success. + * \retval SPI_ERROR_TIMEOUT Time-out. + * \retval SPI_ERROR_ARGUMENT Invalid argument(s) passed. + * + * \note Will block program execution until time-out occurs if transmitter is + * busy and transmit buffer is full. Invoke + * \ref spi_writeRegisterEmptyCheck beforehand if needed. + * + * \note Once the data has been written to the transmit buffer, the end of + * transmission is not waited for. Invoke \ref spi_writeEndCheck if + * needed. + */ +extern spi_status_t spi_variableSlaveWrite(volatile avr32_spi_t *spi, + unsigned short data, + unsigned char pcs, + unsigned char lastxfer); + +/*! \brief Checks if all transmissions are complete. + * + * \param spi Base address of the SPI instance. + * + * \return Status. + * \retval 1 All transmissions complete. + * \retval 0 Transmissions not complete. + */ +extern unsigned char spi_writeEndCheck(volatile avr32_spi_t *spi); + +/*! \brief Checks if there is data in the receive register. + * + * \param spi Base address of the SPI instance. + * + * \return Status. + * \retval 1 Some data in RDR. + * \retval 0 No data in RDR. + */ +extern unsigned char spi_readRegisterFullCheck(volatile avr32_spi_t *spi); + +/*! \brief Reads one data word in master mode or in slave mode. + * + * \param spi Base address of the SPI instance. + * \param data Pointer to the location where to store the received data word. + * + * \return Status. + * \retval SPI_OK Success. + * \retval SPI_ERROR_TIMEOUT Time-out. + * + * \note Will block program execution until time-out occurs if no data is + * received or last transmission is not complete. Invoke + * \ref spi_writeEndCheck or \ref spi_readRegisterFullCheck beforehand if + * needed. + */ +extern spi_status_t spi_read(volatile avr32_spi_t *spi, unsigned short *data); + +/*! \brief Gets status information from the SPI. + * + * \param spi Base address of the SPI instance. + * + * \return Status. + * \retval SPI_OK Success. + * \retval SPI_ERROR_OVERRUN Overrun error. + * \retval SPI_ERROR_MODE_FAULT Mode fault (SPI addressed as slave + * while in master mode). + * \retval SPI_ERROR_OVERRUN_AND_MODE_FAULT Overrun error and mode fault. + */ +extern unsigned char spi_getStatus(volatile avr32_spi_t *spi); + + +#endif // _SPI_H_ diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/TC/tc.c b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/TC/tc.c new file mode 100644 index 0000000..225642e --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/TC/tc.c @@ -0,0 +1,314 @@ +/* This source file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file is prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief TC driver for AVR32 UC3. + * + * AVR32 Timer/Counter driver module. + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices with a TC module can be used. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + ******************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#include <avr32/io.h> +#include "compiler.h" +#include "tc.h" + + +int tc_get_interrupt_settings(volatile avr32_tc_t *tc, unsigned int channel) +{ + // Check for valid input. + if (channel >= TC_NUMBER_OF_CHANNELS) + return TC_INVALID_ARGUMENT; + + return tc->channel[channel].imr; +} + + +int tc_configure_interrupts(volatile avr32_tc_t *tc, unsigned int channel, const tc_interrupt_t *bitfield) +{ + Bool global_interrupt_enabled = Is_global_interrupt_enabled(); + + // Check for valid input. + if (channel >= TC_NUMBER_OF_CHANNELS) + return TC_INVALID_ARGUMENT; + + // Enable the appropriate interrupts. + tc->channel[channel].ier = bitfield->etrgs << AVR32_TC_ETRGS_OFFSET | + bitfield->ldrbs << AVR32_TC_LDRBS_OFFSET | + bitfield->ldras << AVR32_TC_LDRAS_OFFSET | + bitfield->cpcs << AVR32_TC_CPCS_OFFSET | + bitfield->cpbs << AVR32_TC_CPBS_OFFSET | + bitfield->cpas << AVR32_TC_CPAS_OFFSET | + bitfield->lovrs << AVR32_TC_LOVRS_OFFSET | + bitfield->covfs << AVR32_TC_COVFS_OFFSET; + + // Disable the appropriate interrupts. + if (global_interrupt_enabled) Disable_global_interrupt(); + tc->channel[channel].idr = (~bitfield->etrgs & 1) << AVR32_TC_ETRGS_OFFSET | + (~bitfield->ldrbs & 1) << AVR32_TC_LDRBS_OFFSET | + (~bitfield->ldras & 1) << AVR32_TC_LDRAS_OFFSET | + (~bitfield->cpcs & 1) << AVR32_TC_CPCS_OFFSET | + (~bitfield->cpbs & 1) << AVR32_TC_CPBS_OFFSET | + (~bitfield->cpas & 1) << AVR32_TC_CPAS_OFFSET | + (~bitfield->lovrs & 1) << AVR32_TC_LOVRS_OFFSET | + (~bitfield->covfs & 1) << AVR32_TC_COVFS_OFFSET; + tc->channel[channel].sr; + if (global_interrupt_enabled) Enable_global_interrupt(); + + return 0; +} + + +int tc_select_external_clock(volatile avr32_tc_t *tc, unsigned int channel, unsigned int ext_clk_sig_src) +{ + // Check for valid input. + if (channel >= TC_NUMBER_OF_CHANNELS || ext_clk_sig_src >= 1 << AVR32_TC_BMR_TC0XC0S_SIZE) + return TC_INVALID_ARGUMENT; + + // Clear bit-field and set the correct behavior. + tc->bmr = (tc->bmr & ~(AVR32_TC_BMR_TC0XC0S_MASK << (channel * AVR32_TC_BMR_TC0XC0S_SIZE))) | + (ext_clk_sig_src << (channel * AVR32_TC_BMR_TC0XC0S_SIZE)); + + return 0; +} + + +int tc_init_capture(volatile avr32_tc_t *tc, const tc_capture_opt_t *opt) +{ + // Check for valid input. + if (opt->channel >= TC_NUMBER_OF_CHANNELS) + return TC_INVALID_ARGUMENT; + + // MEASURE SIGNALS: Capture operating mode. + tc->channel[opt->channel].cmr = opt->ldrb << AVR32_TC_LDRB_OFFSET | + opt->ldra << AVR32_TC_LDRA_OFFSET | + 0 << AVR32_TC_WAVE_OFFSET | + opt->cpctrg << AVR32_TC_CPCTRG_OFFSET | + opt->abetrg << AVR32_TC_ABETRG_OFFSET | + opt->etrgedg << AVR32_TC_ETRGEDG_OFFSET| + opt->ldbdis << AVR32_TC_LDBDIS_OFFSET | + opt->ldbstop << AVR32_TC_LDBSTOP_OFFSET | + opt->burst << AVR32_TC_BURST_OFFSET | + opt->clki << AVR32_TC_CLKI_OFFSET | + opt->tcclks << AVR32_TC_TCCLKS_OFFSET; + + return 0; +} + + +int tc_init_waveform(volatile avr32_tc_t *tc, const tc_waveform_opt_t *opt) +{ + // Check for valid input. + if (opt->channel >= TC_NUMBER_OF_CHANNELS) + return TC_INVALID_ARGUMENT; + + // GENERATE SIGNALS: Waveform operating mode. + tc->channel[opt->channel].cmr = opt->bswtrg << AVR32_TC_BSWTRG_OFFSET | + opt->beevt << AVR32_TC_BEEVT_OFFSET | + opt->bcpc << AVR32_TC_BCPC_OFFSET | + opt->bcpb << AVR32_TC_BCPB_OFFSET | + opt->aswtrg << AVR32_TC_ASWTRG_OFFSET | + opt->aeevt << AVR32_TC_AEEVT_OFFSET | + opt->acpc << AVR32_TC_ACPC_OFFSET | + opt->acpa << AVR32_TC_ACPA_OFFSET | + 1 << AVR32_TC_WAVE_OFFSET | + opt->wavsel << AVR32_TC_WAVSEL_OFFSET | + opt->enetrg << AVR32_TC_ENETRG_OFFSET | + opt->eevt << AVR32_TC_EEVT_OFFSET | + opt->eevtedg << AVR32_TC_EEVTEDG_OFFSET | + opt->cpcdis << AVR32_TC_CPCDIS_OFFSET | + opt->cpcstop << AVR32_TC_CPCSTOP_OFFSET | + opt->burst << AVR32_TC_BURST_OFFSET | + opt->clki << AVR32_TC_CLKI_OFFSET | + opt->tcclks << AVR32_TC_TCCLKS_OFFSET; + + return 0; +} + + +int tc_start(volatile avr32_tc_t *tc, unsigned int channel) +{ + // Check for valid input. + if (channel >= TC_NUMBER_OF_CHANNELS) + return TC_INVALID_ARGUMENT; + + // Enable, reset and start the selected timer/counter channel. + tc->channel[channel].ccr = AVR32_TC_SWTRG_MASK | AVR32_TC_CLKEN_MASK; + + return 0; +} + + +int tc_stop(volatile avr32_tc_t *tc, unsigned int channel) +{ + // Check for valid input. + if (channel >= TC_NUMBER_OF_CHANNELS) + return TC_INVALID_ARGUMENT; + + // Disable the selected timer/counter channel. + tc->channel[channel].ccr = AVR32_TC_CLKDIS_MASK; + + return 0; +} + + +int tc_software_trigger(volatile avr32_tc_t *tc, unsigned int channel) +{ + // Check for valid input. + if (channel >= TC_NUMBER_OF_CHANNELS) + return TC_INVALID_ARGUMENT; + + // Reset the selected timer/counter channel. + tc->channel[channel].ccr = AVR32_TC_SWTRG_MASK; + + return 0; +} + + +void tc_sync_trigger(volatile avr32_tc_t *tc) +{ + // Reset all channels of the selected timer/counter. + tc->bcr = AVR32_TC_BCR_SYNC_MASK; +} + + +void tc_sync_start(volatile avr32_tc_t *tc) +{ + unsigned int i; + // Enable the clock for each channel. + for(i=0; i<TC_NUMBER_OF_CHANNELS;i++) + tc->channel[i].ccr = AVR32_TC_CLKEN_MASK; + + // Reset all channels of the selected timer/counter. + tc->bcr = AVR32_TC_BCR_SYNC_MASK; +} + + +int tc_read_sr(volatile avr32_tc_t *tc, unsigned int channel) +{ + // Check for valid input. + if (channel >= TC_NUMBER_OF_CHANNELS) + return TC_INVALID_ARGUMENT; + + return tc->channel[channel].sr; +} + + +int tc_read_tc(volatile avr32_tc_t *tc, unsigned int channel) +{ + // Check for valid input. + if (channel >= TC_NUMBER_OF_CHANNELS) + return TC_INVALID_ARGUMENT; + + return Rd_bitfield(tc->channel[channel].cv, AVR32_TC_CV_MASK); +} + + +int tc_read_ra(volatile avr32_tc_t *tc, unsigned int channel) +{ + // Check for valid input. + if (channel >= TC_NUMBER_OF_CHANNELS) + return TC_INVALID_ARGUMENT; + + return Rd_bitfield(tc->channel[channel].ra, AVR32_TC_RA_MASK); +} + + +int tc_read_rb(volatile avr32_tc_t *tc, unsigned int channel) +{ + // Check for valid input. + if (channel >= TC_NUMBER_OF_CHANNELS) + return TC_INVALID_ARGUMENT; + + return Rd_bitfield(tc->channel[channel].rb, AVR32_TC_RB_MASK); +} + + +int tc_read_rc(volatile avr32_tc_t *tc, unsigned int channel) +{ + // Check for valid input. + if (channel >= TC_NUMBER_OF_CHANNELS) + return TC_INVALID_ARGUMENT; + + return Rd_bitfield(tc->channel[channel].rc, AVR32_TC_RC_MASK); +} + + +int tc_write_ra(volatile avr32_tc_t *tc, unsigned int channel, unsigned short value) +{ + // Check for valid input. + if (channel >= TC_NUMBER_OF_CHANNELS) + return TC_INVALID_ARGUMENT; + + // This function is only available in WAVEFORM mode. + if (Tst_bits(tc->channel[channel].cmr, AVR32_TC_WAVE_MASK)) + Wr_bitfield(tc->channel[channel].ra, AVR32_TC_RA_MASK, value); + + return value; +} + + +int tc_write_rb(volatile avr32_tc_t *tc, unsigned int channel, unsigned short value) +{ + // Check for valid input. + if (channel >= TC_NUMBER_OF_CHANNELS) + return TC_INVALID_ARGUMENT; + + // This function is only available in WAVEFORM mode. + if (Tst_bits(tc->channel[channel].cmr, AVR32_TC_WAVE_MASK)) + Wr_bitfield(tc->channel[channel].rb, AVR32_TC_RB_MASK, value); + + return value; +} + + +int tc_write_rc(volatile avr32_tc_t *tc, unsigned int channel, unsigned short value) +{ + // Check for valid input. + if (channel >= TC_NUMBER_OF_CHANNELS) + return TC_INVALID_ARGUMENT; + + // This function is only available in WAVEFORM mode. + if (Tst_bits(tc->channel[channel].cmr, AVR32_TC_WAVE_MASK)) + Wr_bitfield(tc->channel[channel].rc, AVR32_TC_RC_MASK, value); + + return value; +} diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/TC/tc.h b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/TC/tc.h new file mode 100644 index 0000000..45ef4f2 --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/TC/tc.h @@ -0,0 +1,591 @@ +/* This header file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file is prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief Timer/Counter driver for AVR32 UC3. + * + * AVR32 Timer/Counter driver module. + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices with a TC module can be used. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + ******************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#ifndef _TC_H_ +#define _TC_H_ + +#include <avr32/io.h> + + +//! TC driver functions return value in case of invalid argument(s). +#define TC_INVALID_ARGUMENT (-1) + +//! Number of timer/counter channels. +#define TC_NUMBER_OF_CHANNELS (sizeof(((avr32_tc_t *)0)->channel) / sizeof(avr32_tc_channel_t)) + +/*! \name External Clock Signal 0 Selection + */ +//! @{ +#define TC_CH0_EXT_CLK0_SRC_TCLK0 AVR32_TC_TC0XC0S_TCLK0 +#define TC_CH0_EXT_CLK0_SRC_NO_CLK AVR32_TC_TC0XC0S_NO_CLK +#define TC_CH0_EXT_CLK0_SRC_TIOA1 AVR32_TC_TC0XC0S_TIOA1 +#define TC_CH0_EXT_CLK0_SRC_TIOA2 AVR32_TC_TC0XC0S_TIOA2 +//! @} + +/*! \name External Clock Signal 1 Selection + */ +//! @{ +#define TC_CH1_EXT_CLK1_SRC_TCLK1 AVR32_TC_TC1XC1S_TCLK1 +#define TC_CH1_EXT_CLK1_SRC_NO_CLK AVR32_TC_TC1XC1S_NO_CLK +#define TC_CH1_EXT_CLK1_SRC_TIOA0 AVR32_TC_TC1XC1S_TIOA0 +#define TC_CH1_EXT_CLK1_SRC_TIOA2 AVR32_TC_TC1XC1S_TIOA2 +//! @} + +/*! \name External Clock Signal 2 Selection + */ +//! @{ +#define TC_CH2_EXT_CLK2_SRC_TCLK2 AVR32_TC_TC2XC2S_TCLK2 +#define TC_CH2_EXT_CLK2_SRC_NO_CLK AVR32_TC_TC2XC2S_NO_CLK +#define TC_CH2_EXT_CLK2_SRC_TIOA0 AVR32_TC_TC2XC2S_TIOA0 +#define TC_CH2_EXT_CLK2_SRC_TIOA1 AVR32_TC_TC2XC2S_TIOA1 +//! @} + +/*! \name Event/Trigger Actions on Output + */ +//! @{ +#define TC_EVT_EFFECT_NOOP AVR32_TC_NONE +#define TC_EVT_EFFECT_SET AVR32_TC_SET +#define TC_EVT_EFFECT_CLEAR AVR32_TC_CLEAR +#define TC_EVT_EFFECT_TOGGLE AVR32_TC_TOGGLE +//! @} + +/*! \name RC Compare Trigger Enable + */ +//! @{ +#define TC_NO_TRIGGER_COMPARE_RC 0 +#define TC_TRIGGER_COMPARE_RC 1 +//! @} + +/*! \name Waveform Selection + */ +//! @{ +#define TC_WAVEFORM_SEL_UP_MODE AVR32_TC_WAVSEL_UP_NO_AUTO +#define TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER AVR32_TC_WAVSEL_UP_AUTO +#define TC_WAVEFORM_SEL_UPDOWN_MODE AVR32_TC_WAVSEL_UPDOWN_NO_AUTO +#define TC_WAVEFORM_SEL_UPDOWN_MODE_RC_TRIGGER AVR32_TC_WAVSEL_UPDOWN_AUTO +//! @} + +/*! \name TIOA or TIOB External Trigger Selection + */ +//! @{ +#define TC_EXT_TRIG_SEL_TIOA 1 +#define TC_EXT_TRIG_SEL_TIOB 0 +//! @} + +/*! \name External Event Selection + */ +//! @{ +#define TC_EXT_EVENT_SEL_TIOB_INPUT AVR32_TC_EEVT_TIOB_INPUT +#define TC_EXT_EVENT_SEL_XC0_OUTPUT AVR32_TC_EEVT_XC0_OUTPUT +#define TC_EXT_EVENT_SEL_XC1_OUTPUT AVR32_TC_EEVT_XC1_OUTPUT +#define TC_EXT_EVENT_SEL_XC2_OUTPUT AVR32_TC_EEVT_XC2_OUTPUT +//! @} + +/*! \name Edge Selection + */ +//! @{ +#define TC_SEL_NO_EDGE AVR32_TC_EEVTEDG_NO_EDGE +#define TC_SEL_RISING_EDGE AVR32_TC_EEVTEDG_POS_EDGE +#define TC_SEL_FALLING_EDGE AVR32_TC_EEVTEDG_NEG_EDGE +#define TC_SEL_EACH_EDGE AVR32_TC_EEVTEDG_BOTH_EDGES +//! @} + +/*! \name Burst Signal Selection + */ +//! @{ +#define TC_BURST_NOT_GATED AVR32_TC_BURST_NOT_GATED +#define TC_BURST_CLK_AND_XC0 AVR32_TC_BURST_CLK_AND_XC0 +#define TC_BURST_CLK_AND_XC1 AVR32_TC_BURST_CLK_AND_XC1 +#define TC_BURST_CLK_AND_XC2 AVR32_TC_BURST_CLK_AND_XC2 +//! @} + +/*! \name Clock Invert + */ +//! @{ +#define TC_CLOCK_RISING_EDGE 0 +#define TC_CLOCK_FALLING_EDGE 1 +//! @} + +/*! \name Clock Selection + */ +//! @{ +#define TC_CLOCK_SOURCE_TC1 AVR32_TC_TCCLKS_TIMER_CLOCK1 +#define TC_CLOCK_SOURCE_TC2 AVR32_TC_TCCLKS_TIMER_CLOCK2 +#define TC_CLOCK_SOURCE_TC3 AVR32_TC_TCCLKS_TIMER_CLOCK3 +#define TC_CLOCK_SOURCE_TC4 AVR32_TC_TCCLKS_TIMER_CLOCK4 +#define TC_CLOCK_SOURCE_TC5 AVR32_TC_TCCLKS_TIMER_CLOCK5 +#define TC_CLOCK_SOURCE_XC0 AVR32_TC_TCCLKS_XC0 +#define TC_CLOCK_SOURCE_XC1 AVR32_TC_TCCLKS_XC1 +#define TC_CLOCK_SOURCE_XC2 AVR32_TC_TCCLKS_XC2 +//! @} + + +//! Timer/counter interrupts. +typedef struct +{ + unsigned int :24; + + //! External trigger interrupt. + unsigned int etrgs : 1; + + //! RB load interrupt. + unsigned int ldrbs : 1; + + //! RA load interrupt. + unsigned int ldras : 1; + + //! RC compare interrupt. + unsigned int cpcs : 1; + + //! RB compare interrupt. + unsigned int cpbs : 1; + + //! RA compare interrupt. + unsigned int cpas : 1; + + //! Load overrun interrupt. + unsigned int lovrs : 1; + + //! Counter overflow interrupt. + unsigned int covfs : 1; +} tc_interrupt_t; + +//! Parameters when initializing a timer/counter in capture mode. +typedef struct +{ + //! Channel to initialize. + unsigned int channel ; + + unsigned int :12; + + //! RB loading selection:\n + //! - \ref TC_SEL_NO_EDGE;\n + //! - \ref TC_SEL_RISING_EDGE;\n + //! - \ref TC_SEL_FALLING_EDGE;\n + //! - \ref TC_SEL_EACH_EDGE. + unsigned int ldrb : 2; + + //! RA loading selection:\n + //! - \ref TC_SEL_NO_EDGE;\n + //! - \ref TC_SEL_RISING_EDGE;\n + //! - \ref TC_SEL_FALLING_EDGE;\n + //! - \ref TC_SEL_EACH_EDGE. + unsigned int ldra : 2; + + unsigned int : 1; + + //! RC compare trigger enable:\n + //! - \ref TC_NO_TRIGGER_COMPARE_RC;\n + //! - \ref TC_TRIGGER_COMPARE_RC. + unsigned int cpctrg : 1; + + unsigned int : 3; + + //! TIOA or TIOB external trigger selection:\n + //! - \ref TC_EXT_TRIG_SEL_TIOA;\n + //! - \ref TC_EXT_TRIG_SEL_TIOB. + unsigned int abetrg : 1; + + //! External trigger edge selection:\n + //! - \ref TC_SEL_NO_EDGE;\n + //! - \ref TC_SEL_RISING_EDGE;\n + //! - \ref TC_SEL_FALLING_EDGE;\n + //! - \ref TC_SEL_EACH_EDGE. + unsigned int etrgedg : 2; + + //! Counter clock disable with RB loading:\n + //! - \c FALSE;\n + //! - \c TRUE. + unsigned int ldbdis : 1; + + //! Counter clock stopped with RB loading:\n + //! - \c FALSE;\n + //! - \c TRUE. + unsigned int ldbstop : 1; + + //! Burst signal selection:\n + //! - \ref TC_BURST_NOT_GATED;\n + //! - \ref TC_BURST_CLK_AND_XC0;\n + //! - \ref TC_BURST_CLK_AND_XC1;\n + //! - \ref TC_BURST_CLK_AND_XC2. + unsigned int burst : 2; + + //! Clock invert:\n + //! - \ref TC_CLOCK_RISING_EDGE;\n + //! - \ref TC_CLOCK_FALLING_EDGE. + unsigned int clki : 1; + + //! Clock selection:\n + //! - \ref TC_CLOCK_SOURCE_TC1;\n + //! - \ref TC_CLOCK_SOURCE_TC2;\n + //! - \ref TC_CLOCK_SOURCE_TC3;\n + //! - \ref TC_CLOCK_SOURCE_TC4;\n + //! - \ref TC_CLOCK_SOURCE_TC5;\n + //! - \ref TC_CLOCK_SOURCE_XC0;\n + //! - \ref TC_CLOCK_SOURCE_XC1;\n + //! - \ref TC_CLOCK_SOURCE_XC2. + unsigned int tcclks : 3; +} tc_capture_opt_t; + +//! Parameters when initializing a timer/counter in waveform mode. +typedef struct +{ + //! Channel to initialize. + unsigned int channel ; + + //! Software trigger effect on TIOB:\n + //! - \ref TC_EVT_EFFECT_NOOP;\n + //! - \ref TC_EVT_EFFECT_SET;\n + //! - \ref TC_EVT_EFFECT_CLEAR;\n + //! - \ref TC_EVT_EFFECT_TOGGLE. + unsigned int bswtrg : 2; + + //! External event effect on TIOB:\n + //! - \ref TC_EVT_EFFECT_NOOP;\n + //! - \ref TC_EVT_EFFECT_SET;\n + //! - \ref TC_EVT_EFFECT_CLEAR;\n + //! - \ref TC_EVT_EFFECT_TOGGLE. + unsigned int beevt : 2; + + //! RC compare effect on TIOB:\n + //! - \ref TC_EVT_EFFECT_NOOP;\n + //! - \ref TC_EVT_EFFECT_SET;\n + //! - \ref TC_EVT_EFFECT_CLEAR;\n + //! - \ref TC_EVT_EFFECT_TOGGLE. + unsigned int bcpc : 2; + + //! RB compare effect on TIOB:\n + //! - \ref TC_EVT_EFFECT_NOOP;\n + //! - \ref TC_EVT_EFFECT_SET;\n + //! - \ref TC_EVT_EFFECT_CLEAR;\n + //! - \ref TC_EVT_EFFECT_TOGGLE. + unsigned int bcpb : 2; + + //! Software trigger effect on TIOA:\n + //! - \ref TC_EVT_EFFECT_NOOP;\n + //! - \ref TC_EVT_EFFECT_SET;\n + //! - \ref TC_EVT_EFFECT_CLEAR;\n + //! - \ref TC_EVT_EFFECT_TOGGLE. + unsigned int aswtrg : 2; + + //! External event effect on TIOA:\n + //! - \ref TC_EVT_EFFECT_NOOP;\n + //! - \ref TC_EVT_EFFECT_SET;\n + //! - \ref TC_EVT_EFFECT_CLEAR;\n + //! - \ref TC_EVT_EFFECT_TOGGLE. + unsigned int aeevt : 2; + + //! RC compare effect on TIOA:\n + //! - \ref TC_EVT_EFFECT_NOOP;\n + //! - \ref TC_EVT_EFFECT_SET;\n + //! - \ref TC_EVT_EFFECT_CLEAR;\n + //! - \ref TC_EVT_EFFECT_TOGGLE. + unsigned int acpc : 2; + + //! RA compare effect on TIOA:\n + //! - \ref TC_EVT_EFFECT_NOOP;\n + //! - \ref TC_EVT_EFFECT_SET;\n + //! - \ref TC_EVT_EFFECT_CLEAR;\n + //! - \ref TC_EVT_EFFECT_TOGGLE. + unsigned int acpa : 2; + + unsigned int : 1; + + //! Waveform selection:\n + //! - \ref TC_WAVEFORM_SEL_UP_MODE;\n + //! - \ref TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER;\n + //! - \ref TC_WAVEFORM_SEL_UPDOWN_MODE;\n + //! - \ref TC_WAVEFORM_SEL_UPDOWN_MODE_RC_TRIGGER. + unsigned int wavsel : 2; + + //! External event trigger enable:\n + //! - \c FALSE;\n + //! - \c TRUE. + unsigned int enetrg : 1; + + //! External event selection:\n + //! - \ref TC_EXT_EVENT_SEL_TIOB_INPUT;\n + //! - \ref TC_EXT_EVENT_SEL_XC0_OUTPUT;\n + //! - \ref TC_EXT_EVENT_SEL_XC1_OUTPUT;\n + //! - \ref TC_EXT_EVENT_SEL_XC2_OUTPUT. + unsigned int eevt : 2; + + //! External event edge selection:\n + //! - \ref TC_SEL_NO_EDGE;\n + //! - \ref TC_SEL_RISING_EDGE;\n + //! - \ref TC_SEL_FALLING_EDGE;\n + //! - \ref TC_SEL_EACH_EDGE. + unsigned int eevtedg : 2; + + //! Counter clock disable with RC compare:\n + //! - \c FALSE;\n + //! - \c TRUE. + unsigned int cpcdis : 1; + + //! Counter clock stopped with RC compare:\n + //! - \c FALSE;\n + //! - \c TRUE. + unsigned int cpcstop : 1; + + //! Burst signal selection:\n + //! - \ref TC_BURST_NOT_GATED;\n + //! - \ref TC_BURST_CLK_AND_XC0;\n + //! - \ref TC_BURST_CLK_AND_XC1;\n + //! - \ref TC_BURST_CLK_AND_XC2. + unsigned int burst : 2; + + //! Clock invert:\n + //! - \ref TC_CLOCK_RISING_EDGE;\n + //! - \ref TC_CLOCK_FALLING_EDGE. + unsigned int clki : 1; + + //! Clock selection:\n + //! - \ref TC_CLOCK_SOURCE_TC1;\n + //! - \ref TC_CLOCK_SOURCE_TC2;\n + //! - \ref TC_CLOCK_SOURCE_TC3;\n + //! - \ref TC_CLOCK_SOURCE_TC4;\n + //! - \ref TC_CLOCK_SOURCE_TC5;\n + //! - \ref TC_CLOCK_SOURCE_XC0;\n + //! - \ref TC_CLOCK_SOURCE_XC1;\n + //! - \ref TC_CLOCK_SOURCE_XC2. + unsigned int tcclks : 3; +} tc_waveform_opt_t; + + +/*! \brief Reads timer/counter interrupt settings. + * + * \param tc Pointer to the TC instance to access. + * \param channel The TC instance channel to access. + * + * \retval >=0 The interrupt enable configuration organized according to \ref tc_interrupt_t. + * \retval TC_INVALID_ARGUMENT Invalid argument(s). + */ +extern int tc_get_interrupt_settings(volatile avr32_tc_t *tc, unsigned int channel); + +/*! \brief Enables various timer/counter interrupts. + * + * \param tc Pointer to the TC instance to access. + * \param channel The TC instance channel to access. + * \param bitfield The interrupt enable configuration. + * + * \retval 0 Success. + * \retval TC_INVALID_ARGUMENT Invalid argument(s). + */ +extern int tc_configure_interrupts(volatile avr32_tc_t *tc, unsigned int channel, const tc_interrupt_t *bitfield); + +/*! \brief Selects which external clock to use and how to configure it. + * + * \param tc Pointer to the TC instance to access. + * \param channel The TC instance channel to access. + * \param ext_clk_sig_src External clock signal selection: + * \arg \c TC_CH0_EXT_CLK0_SRC_TCLK0; + * \arg \c TC_CH0_EXT_CLK0_SRC_NO_CLK; + * \arg \c TC_CH0_EXT_CLK0_SRC_TIOA1; + * \arg \c TC_CH0_EXT_CLK0_SRC_TIOA2; + * \arg \c TC_CH1_EXT_CLK1_SRC_TCLK1; + * \arg \c TC_CH1_EXT_CLK1_SRC_NO_CLK; + * \arg \c TC_CH1_EXT_CLK1_SRC_TIOA0; + * \arg \c TC_CH1_EXT_CLK1_SRC_TIOA2; + * \arg \c TC_CH2_EXT_CLK2_SRC_TCLK2; + * \arg \c TC_CH2_EXT_CLK2_SRC_NO_CLK; + * \arg \c TC_CH2_EXT_CLK2_SRC_TIOA0; + * \arg \c TC_CH2_EXT_CLK2_SRC_TIOA1. + * + * \retval 0 Success. + * \retval TC_INVALID_ARGUMENT Invalid argument(s). + */ +extern int tc_select_external_clock(volatile avr32_tc_t *tc, unsigned int channel, unsigned int ext_clk_sig_src); + +/*! \brief Sets options for timer/counter capture initialization. + * + * \param tc Pointer to the TC instance to access. + * \param opt Options for capture mode. + * + * \retval 0 Success. + * \retval TC_INVALID_ARGUMENT Invalid argument(s). + */ +extern int tc_init_capture(volatile avr32_tc_t *tc, const tc_capture_opt_t *opt); + +/*! \brief Sets options for timer/counter waveform initialization. + * + * \param tc Pointer to the TC instance to access. + * \param opt Options for waveform generation. + * + * \retval 0 Success. + * \retval TC_INVALID_ARGUMENT Invalid argument(s). + */ +extern int tc_init_waveform(volatile avr32_tc_t *tc, const tc_waveform_opt_t *opt); + +/*! \brief Starts a timer/counter. + * + * \param tc Pointer to the TC instance to access. + * \param channel The TC instance channel to access. + * + * \retval 0 Success. + * \retval TC_INVALID_ARGUMENT Invalid argument(s). + */ +extern int tc_start(volatile avr32_tc_t *tc, unsigned int channel); + +/*! \brief Stops a timer/counter. + * + * \param tc Pointer to the TC instance to access. + * \param channel The TC instance channel to access. + * + * \retval 0 Success. + * \retval TC_INVALID_ARGUMENT Invalid argument(s). + */ +extern int tc_stop(volatile avr32_tc_t *tc, unsigned int channel); + +/*! \brief Performs a software trigger: the counter is reset and the clock is started. + * + * \param tc Pointer to the TC instance to access. + * \param channel The TC instance channel to access. + * + * \retval 0 Success. + * \retval TC_INVALID_ARGUMENT Invalid argument(s). + */ +extern int tc_software_trigger(volatile avr32_tc_t *tc, unsigned int channel); + +/*! \brief Asserts a SYNC signal to generate a software trigger and reset all channels. + * + * \param tc Pointer to the TC instance to access. + */ +extern void tc_sync_trigger(volatile avr32_tc_t *tc); + +/*! \brief Start all TC channels simultaneously. + * + * \param tc Pointer to the TC instance to access. + */ +extern void tc_sync_start(volatile avr32_tc_t *tc); + +/*! \brief Reads the status register. + * + * \param tc Pointer to the TC instance to access. + * \param channel The TC instance channel to access. + * + * \retval >=0 Status register value. + * \retval TC_INVALID_ARGUMENT Invalid argument(s). + */ +extern int tc_read_sr(volatile avr32_tc_t *tc, unsigned int channel); + +/*! \brief Reads the channel's TC counter and returns the value. + * + * \param tc Pointer to the TC instance to access. + * \param channel The TC instance channel to access. + * + * \retval >=0 TC counter value. + * \retval TC_INVALID_ARGUMENT Invalid argument(s). + */ +extern int tc_read_tc(volatile avr32_tc_t *tc, unsigned int channel); + +/*! \brief Reads the channel's RA register and returns the value. + * + * \param tc Pointer to the TC instance to access. + * \param channel The TC instance channel to access. + * + * \retval >=0 RA register value. + * \retval TC_INVALID_ARGUMENT Invalid argument(s). + */ +extern int tc_read_ra(volatile avr32_tc_t *tc, unsigned int channel); + +/*! \brief Reads the channel's RB register and returns the value. + * + * \param tc Pointer to the TC instance to access. + * \param channel The TC instance channel to access. + * + * \retval >=0 RB register value. + * \retval TC_INVALID_ARGUMENT Invalid argument(s). + */ +extern int tc_read_rb(volatile avr32_tc_t *tc, unsigned int channel); + +/*! \brief Reads the channel's RC register and returns the value. + * + * \param tc Pointer to the TC instance to access. + * \param channel The TC instance channel to access. + * + * \retval >=0 RC register value. + * \retval TC_INVALID_ARGUMENT Invalid argument(s). + */ +extern int tc_read_rc(volatile avr32_tc_t *tc, unsigned int channel); + +/*! \brief Writes a value to the channel's RA register. + * + * \param tc Pointer to the TC instance to access. + * \param channel The TC instance channel to access. + * \param value Value to write to the RA register. + * + * \retval >=0 Written value. + * \retval TC_INVALID_ARGUMENT Invalid argument(s). + */ +extern int tc_write_ra(volatile avr32_tc_t *tc, unsigned int channel, unsigned short value); + +/*! \brief Writes a value to the channel's RB register. + * + * \param tc Pointer to the TC instance to access. + * \param channel The TC instance channel to access. + * \param value Value to write to the RB register. + * + * \retval >=0 Written value. + * \retval TC_INVALID_ARGUMENT Invalid argument(s). + */ +extern int tc_write_rb(volatile avr32_tc_t *tc, unsigned int channel, unsigned short value); + +/*! \brief Writes a value to the channel's RC register. + * + * \param tc Pointer to the TC instance to access. + * \param channel The TC instance channel to access. + * \param value Value to write to the RC register. + * + * \retval >=0 Written value. + * \retval TC_INVALID_ARGUMENT Invalid argument(s). + */ +extern int tc_write_rc(volatile avr32_tc_t *tc, unsigned int channel, unsigned short value); + + +#endif // _TC_H_ diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/USART/usart.c b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/USART/usart.c new file mode 100644 index 0000000..b95882a --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/USART/usart.c @@ -0,0 +1,914 @@ +/* This source file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file is prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief USART driver for AVR32 UC3. + * + * This file contains basic functions for the AVR32 USART, with support for all + * modes, settings and clock speeds. + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices with a USART module can be used. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + ******************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#include "compiler.h" +#include "usart.h" + + +//------------------------------------------------------------------------------ +/*! \name Private Functions + */ +//! @{ + + +/*! \brief Checks if the USART is in multidrop mode. + * + * \param usart Base address of the USART instance. + * + * \return \c 1 if the USART is in multidrop mode, otherwise \c 0. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +static __inline__ int usart_mode_is_multidrop(volatile avr32_usart_t *usart) +{ + return ((usart->mr >> AVR32_USART_MR_PAR_OFFSET) & AVR32_USART_MR_PAR_MULTI) == AVR32_USART_MR_PAR_MULTI; +} + + +/*! \brief Calculates a clock divider (\e CD) and a fractional part (\e FP) for + * the USART asynchronous modes to generate a baud rate as close as + * possible to the baud rate set point. + * + * Baud rate calculation: + * \f$ Baudrate = \frac{SelectedClock}{Over \times (CD + \frac{FP}{8})} \f$, \e Over being 16 or 8. + * The maximal oversampling is selected if it allows to generate a baud rate close to the set point. + * + * \param usart Base address of the USART instance. + * \param baudrate Baud rate set point. + * \param pba_hz USART module input clock frequency (PBA clock, Hz). + * + * \retval USART_SUCCESS Baud rate successfully initialized. + * \retval USART_INVALID_INPUT Baud rate set point is out of range for the given input clock frequency. + */ +static int usart_set_async_baudrate(volatile avr32_usart_t *usart, unsigned int baudrate, unsigned long pba_hz) +{ + unsigned int over = (pba_hz >= 16 * baudrate) ? 16 : 8; + unsigned int cd_fp = ((1 << AVR32_USART_BRGR_FP_SIZE) * pba_hz + (over * baudrate) / 2) / (over * baudrate); + unsigned int cd = cd_fp >> AVR32_USART_BRGR_FP_SIZE; + unsigned int fp = cd_fp & ((1 << AVR32_USART_BRGR_FP_SIZE) - 1); + + if (cd < 1 || cd > (1 << AVR32_USART_BRGR_CD_SIZE) - 1) + return USART_INVALID_INPUT; + + usart->mr = (usart->mr & ~(AVR32_USART_MR_USCLKS_MASK | + AVR32_USART_MR_SYNC_MASK | + AVR32_USART_MR_OVER_MASK)) | + AVR32_USART_MR_USCLKS_MCK << AVR32_USART_MR_USCLKS_OFFSET | + ((over == 16) ? AVR32_USART_MR_OVER_X16 : AVR32_USART_MR_OVER_X8) << AVR32_USART_MR_OVER_OFFSET; + + usart->brgr = cd << AVR32_USART_BRGR_CD_OFFSET | + fp << AVR32_USART_BRGR_FP_OFFSET; + + return USART_SUCCESS; +} + + +/*! \brief Calculates a clock divider (\e CD) for the USART synchronous master + * modes to generate a baud rate as close as possible to the baud rate + * set point. + * + * Baud rate calculation: + * \f$ Baudrate = \frac{SelectedClock}{CD} \f$. + * + * \param usart Base address of the USART instance. + * \param baudrate Baud rate set point. + * \param pba_hz USART module input clock frequency (PBA clock, Hz). + * + * \retval USART_SUCCESS Baud rate successfully initialized. + * \retval USART_INVALID_INPUT Baud rate set point is out of range for the given input clock frequency. + */ +static int usart_set_sync_master_baudrate(volatile avr32_usart_t *usart, unsigned int baudrate, unsigned long pba_hz) +{ + unsigned int cd = (pba_hz + baudrate / 2) / baudrate; + + if (cd < 1 || cd > (1 << AVR32_USART_BRGR_CD_SIZE) - 1) + return USART_INVALID_INPUT; + + usart->mr = (usart->mr & ~AVR32_USART_MR_USCLKS_MASK) | + AVR32_USART_MR_USCLKS_MCK << AVR32_USART_MR_USCLKS_OFFSET | + AVR32_USART_MR_SYNC_MASK; + + usart->brgr = cd << AVR32_USART_BRGR_CD_OFFSET; + + return USART_SUCCESS; +} + + +/*! \brief Selects the SCK pin as the source of baud rate for the USART + * synchronous slave modes. + * + * \param usart Base address of the USART instance. + * + * \retval USART_SUCCESS Baud rate successfully initialized. + */ +static int usart_set_sync_slave_baudrate(volatile avr32_usart_t *usart) +{ + usart->mr = (usart->mr & ~AVR32_USART_MR_USCLKS_MASK) | + AVR32_USART_MR_USCLKS_SCK << AVR32_USART_MR_USCLKS_OFFSET | + AVR32_USART_MR_SYNC_MASK; + + return USART_SUCCESS; +} + + +/*! \brief Calculates a clock divider (\e CD) for the USART ISO7816 mode to + * generate an ISO7816 clock as close as possible to the clock set point. + * + * ISO7816 clock calculation: + * \f$ Clock = \frac{SelectedClock}{CD} \f$. + * + * \param usart Base address of the USART instance. + * \param clock ISO7816 clock set point. + * \param pba_hz USART module input clock frequency (PBA clock, Hz). + * + * \retval USART_SUCCESS ISO7816 clock successfully initialized. + * \retval USART_INVALID_INPUT ISO7816 clock set point is out of range for the given input clock frequency. + */ +static int usart_set_iso7816_clock(volatile avr32_usart_t *usart, unsigned int clock, unsigned long pba_hz) +{ + unsigned int cd = (pba_hz + clock / 2) / clock; + + if (cd < 1 || cd > (1 << AVR32_USART_BRGR_CD_SIZE) - 1) + return USART_INVALID_INPUT; + + usart->mr = (usart->mr & ~(AVR32_USART_MR_USCLKS_MASK | + AVR32_USART_MR_SYNC_MASK | + AVR32_USART_MR_OVER_MASK)) | + AVR32_USART_MR_USCLKS_MCK << AVR32_USART_MR_USCLKS_OFFSET | + AVR32_USART_MR_OVER_X16 << AVR32_USART_MR_OVER_OFFSET; + + usart->brgr = cd << AVR32_USART_BRGR_CD_OFFSET; + + return USART_SUCCESS; +} + + +#if defined(AVR32_USART_400_H_INCLUDED) || \ + defined(AVR32_USART_410_H_INCLUDED) || \ + defined(AVR32_USART_420_H_INCLUDED) || \ + defined(AVR32_USART_440_H_INCLUDED) || \ + defined(AVR32_USART_602_H_INCLUDED) + + +/*! \brief Calculates a clock divider (\e CD) for the USART SPI master mode to + * generate a baud rate as close as possible to the baud rate set point. + * + * Baud rate calculation: + * \f$ Baudrate = \frac{SelectedClock}{CD} \f$. + * + * \param usart Base address of the USART instance. + * \param baudrate Baud rate set point. + * \param pba_hz USART module input clock frequency (PBA clock, Hz). + * + * \retval USART_SUCCESS Baud rate successfully initialized. + * \retval USART_INVALID_INPUT Baud rate set point is out of range for the given input clock frequency. + */ +static int usart_set_spi_master_baudrate(volatile avr32_usart_t *usart, unsigned int baudrate, unsigned long pba_hz) +{ + unsigned int cd = (pba_hz + baudrate / 2) / baudrate; + + if (cd < 4 || cd > (1 << AVR32_USART_BRGR_CD_SIZE) - 1) + return USART_INVALID_INPUT; + + usart->mr = (usart->mr & ~AVR32_USART_MR_USCLKS_MASK) | + AVR32_USART_MR_USCLKS_MCK << AVR32_USART_MR_USCLKS_OFFSET; + + usart->brgr = cd << AVR32_USART_BRGR_CD_OFFSET; + + return USART_SUCCESS; +} + + +/*! \brief Selects the SCK pin as the source of baud rate for the USART SPI + * slave mode. + * + * \param usart Base address of the USART instance. + * + * \retval USART_SUCCESS Baud rate successfully initialized. + */ +static int usart_set_spi_slave_baudrate(volatile avr32_usart_t *usart) +{ + usart->mr = (usart->mr & ~AVR32_USART_MR_USCLKS_MASK) | + AVR32_USART_MR_USCLKS_SCK << AVR32_USART_MR_USCLKS_OFFSET; + + return USART_SUCCESS; +} + + +#endif // USART rev. >= 4.0.0 + + +//! @} + + +//------------------------------------------------------------------------------ +/*! \name Initialization Functions + */ +//! @{ + + +void usart_reset(volatile avr32_usart_t *usart) +{ + Bool global_interrupt_enabled = Is_global_interrupt_enabled(); + + // Disable all USART interrupts. + // Interrupts needed should be set explicitly on every reset. + if (global_interrupt_enabled) Disable_global_interrupt(); + usart->idr = 0xFFFFFFFF; + usart->csr; + if (global_interrupt_enabled) Enable_global_interrupt(); + + // Reset mode and other registers that could cause unpredictable behavior after reset. + usart->mr = 0; + usart->rtor = 0; + usart->ttgr = 0; + + // Shutdown TX and RX (will be re-enabled when setup has successfully completed), + // reset status bits and turn off DTR and RTS. + usart->cr = AVR32_USART_CR_RSTRX_MASK | + AVR32_USART_CR_RSTTX_MASK | + AVR32_USART_CR_RSTSTA_MASK | + AVR32_USART_CR_RSTIT_MASK | + AVR32_USART_CR_RSTNACK_MASK | +#ifndef AVR32_USART_440_H_INCLUDED +// Note: Modem Signal Management DTR-DSR-DCD-RI are not included in USART rev.440. + AVR32_USART_CR_DTRDIS_MASK | +#endif + AVR32_USART_CR_RTSDIS_MASK; +} + + +int usart_init_rs232(volatile avr32_usart_t *usart, const usart_options_t *opt, long pba_hz) +{ + // Reset the USART and shutdown TX and RX. + usart_reset(usart); + + // Check input values. + if (!opt || // Null pointer. + opt->charlength < 5 || opt->charlength > 9 || + opt->paritytype > 7 || + opt->stopbits > 2 + 255 || + opt->channelmode > 3 || + usart_set_async_baudrate(usart, opt->baudrate, pba_hz) == USART_INVALID_INPUT) + return USART_INVALID_INPUT; + + if (opt->charlength == 9) + { + // Character length set to 9 bits. MODE9 dominates CHRL. + usart->mr |= AVR32_USART_MR_MODE9_MASK; + } + else + { + // CHRL gives the character length (- 5) when MODE9 = 0. + usart->mr |= (opt->charlength - 5) << AVR32_USART_MR_CHRL_OFFSET; + } + + usart->mr |= opt->paritytype << AVR32_USART_MR_PAR_OFFSET | + opt->channelmode << AVR32_USART_MR_CHMODE_OFFSET; + + if (opt->stopbits > USART_2_STOPBITS) + { + // Set two stop bits + usart->mr |= AVR32_USART_MR_NBSTOP_2 << AVR32_USART_MR_NBSTOP_OFFSET; + // and a timeguard period gives the rest. + usart->ttgr = opt->stopbits - USART_2_STOPBITS; + } + else + // Insert 1, 1.5 or 2 stop bits. + usart->mr |= opt->stopbits << AVR32_USART_MR_NBSTOP_OFFSET; + + // Set normal mode. + usart->mr = (usart->mr & ~AVR32_USART_MR_MODE_MASK) | + AVR32_USART_MR_MODE_NORMAL << AVR32_USART_MR_MODE_OFFSET; + + // Setup complete; enable communication. + // Enable input and output. + usart->cr = AVR32_USART_CR_RXEN_MASK | + AVR32_USART_CR_TXEN_MASK; + + return USART_SUCCESS; +} + + +int usart_init_rs232_tx_only(volatile avr32_usart_t *usart, const usart_options_t *opt, long pba_hz) +{ + // Reset the USART and shutdown TX and RX. + usart_reset(usart); + + // Check input values. + if (!opt || // Null pointer. + opt->charlength < 5 || opt->charlength > 9 || + opt->paritytype > 7 || + opt->stopbits == 1 || opt->stopbits > 2 + 255 || + opt->channelmode > 3 || + usart_set_sync_master_baudrate(usart, opt->baudrate, pba_hz) == USART_INVALID_INPUT) + return USART_INVALID_INPUT; + + if (opt->charlength == 9) + { + // Character length set to 9 bits. MODE9 dominates CHRL. + usart->mr |= AVR32_USART_MR_MODE9_MASK; + } + else + { + // CHRL gives the character length (- 5) when MODE9 = 0. + usart->mr |= (opt->charlength - 5) << AVR32_USART_MR_CHRL_OFFSET; + } + + usart->mr |= opt->paritytype << AVR32_USART_MR_PAR_OFFSET | + opt->channelmode << AVR32_USART_MR_CHMODE_OFFSET; + + if (opt->stopbits > USART_2_STOPBITS) + { + // Set two stop bits + usart->mr |= AVR32_USART_MR_NBSTOP_2 << AVR32_USART_MR_NBSTOP_OFFSET; + // and a timeguard period gives the rest. + usart->ttgr = opt->stopbits - USART_2_STOPBITS; + } + else + // Insert 1 or 2 stop bits. + usart->mr |= opt->stopbits << AVR32_USART_MR_NBSTOP_OFFSET; + + // Set normal mode. + usart->mr = (usart->mr & ~AVR32_USART_MR_MODE_MASK) | + AVR32_USART_MR_MODE_NORMAL << AVR32_USART_MR_MODE_OFFSET; + + // Setup complete; enable communication. + // Enable only output as input is not possible in synchronous mode without + // transferring clock. + usart->cr = AVR32_USART_CR_TXEN_MASK; + + return USART_SUCCESS; +} + + +int usart_init_hw_handshaking(volatile avr32_usart_t *usart, const usart_options_t *opt, long pba_hz) +{ + // First: Setup standard RS232. + if (usart_init_rs232(usart, opt, pba_hz) == USART_INVALID_INPUT) + return USART_INVALID_INPUT; + + // Set hardware handshaking mode. + usart->mr = (usart->mr & ~AVR32_USART_MR_MODE_MASK) | + AVR32_USART_MR_MODE_HARDWARE << AVR32_USART_MR_MODE_OFFSET; + + return USART_SUCCESS; +} + + +int usart_init_modem(volatile avr32_usart_t *usart, const usart_options_t *opt, long pba_hz) +{ + // First: Setup standard RS232. + if (usart_init_rs232(usart, opt, pba_hz) == USART_INVALID_INPUT) + return USART_INVALID_INPUT; + + // Set modem mode. + usart->mr = (usart->mr & ~AVR32_USART_MR_MODE_MASK) | + AVR32_USART_MR_MODE_MODEM << AVR32_USART_MR_MODE_OFFSET; + + return USART_SUCCESS; +} + + +int usart_init_sync_master(volatile avr32_usart_t *usart, const usart_options_t *opt, long pba_hz) +{ + // Reset the USART and shutdown TX and RX. + usart_reset(usart); + + // Check input values. + if (!opt || // Null pointer. + opt->charlength < 5 || opt->charlength > 9 || + opt->paritytype > 7 || + opt->stopbits == 1 || opt->stopbits > 2 + 255 || + opt->channelmode > 3 || + usart_set_sync_master_baudrate(usart, opt->baudrate, pba_hz) == USART_INVALID_INPUT) + return USART_INVALID_INPUT; + + if (opt->charlength == 9) + { + // Character length set to 9 bits. MODE9 dominates CHRL. + usart->mr |= AVR32_USART_MR_MODE9_MASK; + } + else + { + // CHRL gives the character length (- 5) when MODE9 = 0. + usart->mr |= (opt->charlength - 5) << AVR32_USART_MR_CHRL_OFFSET; + } + + usart->mr |= opt->paritytype << AVR32_USART_MR_PAR_OFFSET | + opt->channelmode << AVR32_USART_MR_CHMODE_OFFSET; + + if (opt->stopbits > USART_2_STOPBITS) + { + // Set two stop bits + usart->mr |= AVR32_USART_MR_NBSTOP_2 << AVR32_USART_MR_NBSTOP_OFFSET; + // and a timeguard period gives the rest. + usart->ttgr = opt->stopbits - USART_2_STOPBITS; + } + else + // Insert 1 or 2 stop bits. + usart->mr |= opt->stopbits << AVR32_USART_MR_NBSTOP_OFFSET; + + // Set normal mode. + usart->mr = (usart->mr & ~AVR32_USART_MR_MODE_MASK) | + AVR32_USART_MR_MODE_NORMAL << AVR32_USART_MR_MODE_OFFSET | + AVR32_USART_MR_CLKO_MASK; + + // Setup complete; enable communication. + // Enable input and output. + usart->cr = AVR32_USART_CR_RXEN_MASK | + AVR32_USART_CR_TXEN_MASK; + + return USART_SUCCESS; +} + + +int usart_init_sync_slave(volatile avr32_usart_t *usart, const usart_options_t *opt, long pba_hz) +{ + // Reset the USART and shutdown TX and RX. + usart_reset(usart); + + // Check input values. + if (!opt || // Null pointer. + opt->charlength < 5 || opt->charlength > 9 || + opt->paritytype > 7 || + opt->stopbits == 1 || opt->stopbits > 2 + 255 || + opt->channelmode > 3 || + usart_set_sync_slave_baudrate(usart) == USART_INVALID_INPUT) + return USART_INVALID_INPUT; + + if (opt->charlength == 9) + { + // Character length set to 9 bits. MODE9 dominates CHRL. + usart->mr |= AVR32_USART_MR_MODE9_MASK; + } + else + { + // CHRL gives the character length (- 5) when MODE9 = 0. + usart->mr |= (opt->charlength - 5) << AVR32_USART_MR_CHRL_OFFSET; + } + + usart->mr |= opt->paritytype << AVR32_USART_MR_PAR_OFFSET | + opt->channelmode << AVR32_USART_MR_CHMODE_OFFSET; + + if (opt->stopbits > USART_2_STOPBITS) + { + // Set two stop bits + usart->mr |= AVR32_USART_MR_NBSTOP_2 << AVR32_USART_MR_NBSTOP_OFFSET; + // and a timeguard period gives the rest. + usart->ttgr = opt->stopbits - USART_2_STOPBITS; + } + else + // Insert 1 or 2 stop bits. + usart->mr |= opt->stopbits << AVR32_USART_MR_NBSTOP_OFFSET; + + // Set normal mode. + usart->mr = (usart->mr & ~AVR32_USART_MR_MODE_MASK) | + AVR32_USART_MR_MODE_NORMAL << AVR32_USART_MR_MODE_OFFSET; + + // Setup complete; enable communication. + // Enable input and output. + usart->cr = AVR32_USART_CR_RXEN_MASK | + AVR32_USART_CR_TXEN_MASK; + + return USART_SUCCESS; +} + + +int usart_init_rs485(volatile avr32_usart_t *usart, const usart_options_t *opt, long pba_hz) +{ + // First: Setup standard RS232. + if (usart_init_rs232(usart, opt, pba_hz) == USART_INVALID_INPUT) + return USART_INVALID_INPUT; + + // Set RS485 mode. + usart->mr = (usart->mr & ~AVR32_USART_MR_MODE_MASK) | + AVR32_USART_MR_MODE_RS485 << AVR32_USART_MR_MODE_OFFSET; + + return USART_SUCCESS; +} + + +int usart_init_IrDA(volatile avr32_usart_t *usart, const usart_options_t *opt, + long pba_hz, unsigned char irda_filter) +{ + // First: Setup standard RS232. + if (usart_init_rs232(usart, opt, pba_hz) == USART_INVALID_INPUT) + return USART_INVALID_INPUT; + + // Set IrDA filter. + usart->ifr = irda_filter; + + // Set IrDA mode and activate filtering of input. + usart->mr = (usart->mr & ~AVR32_USART_MR_MODE_MASK) | + AVR32_USART_MODE_IRDA << AVR32_USART_MR_MODE_OFFSET | + AVR32_USART_MR_FILTER_MASK; + + return USART_SUCCESS; +} + + +int usart_init_iso7816(volatile avr32_usart_t *usart, const usart_iso7816_options_t *opt, int t, long pba_hz) +{ + // Reset the USART and shutdown TX and RX. + usart_reset(usart); + + // Check input values. + if (!opt || // Null pointer. + opt->paritytype > 1) + return USART_INVALID_INPUT; + + if (t == 0) + { + // Set USART mode to ISO7816, T=0. + // The T=0 protocol always uses 2 stop bits. + usart->mr = AVR32_USART_MR_MODE_ISO7816_T0 << AVR32_USART_MR_MODE_OFFSET | + AVR32_USART_MR_NBSTOP_2 << AVR32_USART_MR_NBSTOP_OFFSET | + opt->bit_order << AVR32_USART_MR_MSBF_OFFSET; // Allow MSBF in T=0. + } + else if (t == 1) + { + // Only LSB first in the T=1 protocol. + // max_iterations field is only used in T=0 mode. + if (opt->bit_order != 0 || + opt->max_iterations != 0) + return USART_INVALID_INPUT; + + // Set USART mode to ISO7816, T=1. + // The T=1 protocol always uses 1 stop bit. + usart->mr = AVR32_USART_MR_MODE_ISO7816_T1 << AVR32_USART_MR_MODE_OFFSET | + AVR32_USART_MR_NBSTOP_1 << AVR32_USART_MR_NBSTOP_OFFSET; + } + else + return USART_INVALID_INPUT; + + if (usart_set_iso7816_clock(usart, opt->iso7816_hz, pba_hz) == USART_INVALID_INPUT) + return USART_INVALID_INPUT; + + // Set FIDI register: bit rate = selected clock/FI_DI_ratio/16. + usart->fidi = opt->fidi_ratio; + + // Set ISO7816 spesific options in the MODE register. + usart->mr |= opt->paritytype << AVR32_USART_MR_PAR_OFFSET | + AVR32_USART_MR_CLKO_MASK | // Enable clock output. + opt->inhibit_nack << AVR32_USART_MR_INACK_OFFSET | + opt->dis_suc_nack << AVR32_USART_MR_DSNACK_OFFSET | + opt->max_iterations << AVR32_USART_MR_MAX_ITERATION_OFFSET; + + // Setup complete; enable the receiver by default. + usart_iso7816_enable_receiver(usart); + + return USART_SUCCESS; +} + + +#if defined(AVR32_USART_400_H_INCLUDED) || \ + defined(AVR32_USART_410_H_INCLUDED) || \ + defined(AVR32_USART_420_H_INCLUDED) || \ + defined(AVR32_USART_440_H_INCLUDED) || \ + defined(AVR32_USART_602_H_INCLUDED) + + +int usart_init_lin_master(volatile avr32_usart_t *usart, unsigned long baudrate, long pba_hz) +{ + // Reset the USART and shutdown TX and RX. + usart_reset(usart); + + // Check input values. + if (usart_set_async_baudrate(usart, baudrate, pba_hz) == USART_INVALID_INPUT) + return USART_INVALID_INPUT; + + usart->mr |= AVR32_USART_MR_MODE_LIN_MASTER << AVR32_USART_MR_MODE_OFFSET; // LIN master mode. + + // Setup complete; enable communication. + // Enable input and output. + usart->cr = AVR32_USART_CR_RXEN_MASK | + AVR32_USART_CR_TXEN_MASK; + + return USART_SUCCESS; +} + + +int usart_init_lin_slave(volatile avr32_usart_t *usart, unsigned long baudrate, long pba_hz) +{ + // Reset the USART and shutdown TX and RX. + usart_reset(usart); + + // Check input values. + if (usart_set_async_baudrate(usart, baudrate, pba_hz) == USART_INVALID_INPUT) + return USART_INVALID_INPUT; + + usart->mr |= AVR32_USART_MR_MODE_LIN_SLAVE << AVR32_USART_MR_MODE_OFFSET; // LIN slave mode. + + // Setup complete; enable communication. + // Enable input and output. + usart->cr = AVR32_USART_CR_RXEN_MASK | + AVR32_USART_CR_TXEN_MASK; + + return USART_SUCCESS; +} + + +int usart_init_spi_master(volatile avr32_usart_t *usart, const usart_spi_options_t *opt, long pba_hz) +{ + // Reset the USART and shutdown TX and RX. + usart_reset(usart); + + // Check input values. + if (!opt || // Null pointer. + opt->charlength < 5 || opt->charlength > 9 || + opt->spimode > 3 || + opt->channelmode > 3 || + usart_set_spi_master_baudrate(usart, opt->baudrate, pba_hz) == USART_INVALID_INPUT) + return USART_INVALID_INPUT; + + if (opt->charlength == 9) + { + // Character length set to 9 bits. MODE9 dominates CHRL. + usart->mr |= AVR32_USART_MR_MODE9_MASK; + } + else + { + // CHRL gives the character length (- 5) when MODE9 = 0. + usart->mr |= (opt->charlength - 5) << AVR32_USART_MR_CHRL_OFFSET; + } + + usart->mr |= AVR32_USART_MR_MODE_SPI_MASTER << AVR32_USART_MR_MODE_OFFSET | // SPI master mode. + ((opt->spimode & 0x1) ^ 0x1) << AVR32_USART_MR_SYNC_OFFSET | // SPI clock phase. + opt->channelmode << AVR32_USART_MR_CHMODE_OFFSET | // Channel mode. + (opt->spimode >> 1) << AVR32_USART_MR_MSBF_OFFSET | // SPI clock polarity. + AVR32_USART_MR_CLKO_MASK; // Drive SCK pin. + + // Setup complete; enable communication. + // Enable input and output. + usart->cr = AVR32_USART_CR_RXEN_MASK | + AVR32_USART_CR_TXEN_MASK; + + return USART_SUCCESS; +} + + +int usart_init_spi_slave(volatile avr32_usart_t *usart, const usart_spi_options_t *opt, long pba_hz) +{ + // Reset the USART and shutdown TX and RX. + usart_reset(usart); + + // Check input values. + if (!opt || // Null pointer. + opt->charlength < 5 || opt->charlength > 9 || + opt->spimode > 3 || + opt->channelmode > 3 || + usart_set_spi_slave_baudrate(usart) == USART_INVALID_INPUT) + return USART_INVALID_INPUT; + + if (opt->charlength == 9) + { + // Character length set to 9 bits. MODE9 dominates CHRL. + usart->mr |= AVR32_USART_MR_MODE9_MASK; + } + else + { + // CHRL gives the character length (- 5) when MODE9 = 0. + usart->mr |= (opt->charlength - 5) << AVR32_USART_MR_CHRL_OFFSET; + } + + usart->mr |= AVR32_USART_MR_MODE_SPI_SLAVE << AVR32_USART_MR_MODE_OFFSET | // SPI slave mode. + ((opt->spimode & 0x1) ^ 0x1) << AVR32_USART_MR_SYNC_OFFSET | // SPI clock phase. + opt->channelmode << AVR32_USART_MR_CHMODE_OFFSET | // Channel mode. + (opt->spimode >> 1) << AVR32_USART_MR_MSBF_OFFSET; // SPI clock polarity. + + // Setup complete; enable communication. + // Enable input and output. + usart->cr = AVR32_USART_CR_RXEN_MASK | + AVR32_USART_CR_TXEN_MASK; + + return USART_SUCCESS; +} + + +#endif // USART rev. >= 4.0.0 + + +//! @} + + +//------------------------------------------------------------------------------ +#if defined(AVR32_USART_400_H_INCLUDED) || \ + defined(AVR32_USART_410_H_INCLUDED) || \ + defined(AVR32_USART_420_H_INCLUDED) || \ + defined(AVR32_USART_440_H_INCLUDED) || \ + defined(AVR32_USART_602_H_INCLUDED) + + +/*! \name SPI Control Functions + */ +//! @{ + + +int usart_spi_selectChip(volatile avr32_usart_t *usart) +{ + // Force the SPI chip select. + usart->cr = AVR32_USART_CR_RTSEN_MASK; + + return USART_SUCCESS; +} + + +int usart_spi_unselectChip(volatile avr32_usart_t *usart) +{ + int timeout = USART_DEFAULT_TIMEOUT; + + do + { + if (!timeout--) return USART_FAILURE; + } while (!usart_tx_empty(usart)); + + // Release the SPI chip select. + usart->cr = AVR32_USART_CR_RTSDIS_MASK; + + return USART_SUCCESS; +} + + +//! @} + + +#endif // USART rev. >= 4.0.0 + + +//------------------------------------------------------------------------------ +/*! \name Transmit/Receive Functions + */ +//! @{ + + +int usart_send_address(volatile avr32_usart_t *usart, int address) +{ + // Check if USART is in multidrop / RS485 mode. + if (!usart_mode_is_multidrop(usart)) return USART_MODE_FAULT; + + // Prepare to send an address. + usart->cr = AVR32_USART_CR_SENDA_MASK; + + // Write the address to TX. + usart_bw_write_char(usart, address); + + return USART_SUCCESS; +} + + +int usart_write_char(volatile avr32_usart_t *usart, int c) +{ + if (usart_tx_ready(usart)) + { + usart->thr = (c << AVR32_USART_THR_TXCHR_OFFSET) & AVR32_USART_THR_TXCHR_MASK; + return USART_SUCCESS; + } + else + return USART_TX_BUSY; +} + + +int usart_putchar(volatile avr32_usart_t *usart, int c) +{ + int timeout = USART_DEFAULT_TIMEOUT; + + if (c == '\n') + { + do + { + if (!timeout--) return USART_FAILURE; + } while (usart_write_char(usart, '\r') != USART_SUCCESS); + + timeout = USART_DEFAULT_TIMEOUT; + } + + do + { + if (!timeout--) return USART_FAILURE; + } while (usart_write_char(usart, c) != USART_SUCCESS); + + return USART_SUCCESS; +} + + +int usart_read_char(volatile avr32_usart_t *usart, int *c) +{ + // Check for errors: frame, parity and overrun. In RS485 mode, a parity error + // would mean that an address char has been received. + if (usart->csr & (AVR32_USART_CSR_OVRE_MASK | + AVR32_USART_CSR_FRAME_MASK | + AVR32_USART_CSR_PARE_MASK)) + return USART_RX_ERROR; + + // No error; if we really did receive a char, read it and return SUCCESS. + if (usart_test_hit(usart)) + { + *c = (usart->rhr & AVR32_USART_RHR_RXCHR_MASK) >> AVR32_USART_RHR_RXCHR_OFFSET; + return USART_SUCCESS; + } + else + return USART_RX_EMPTY; +} + + +int usart_getchar(volatile avr32_usart_t *usart) +{ + int c, ret; + + while ((ret = usart_read_char(usart, &c)) == USART_RX_EMPTY); + + if (ret == USART_RX_ERROR) + return USART_FAILURE; + + return c; +} + + +void usart_write_line(volatile avr32_usart_t *usart, const char *string) +{ + while (*string != '\0') + usart_putchar(usart, *string++); +} + + +int usart_get_echo_line(volatile avr32_usart_t *usart) +{ + int rx_char; + int retval = USART_SUCCESS; + + while (1) + { + rx_char = usart_getchar(usart); + if (rx_char == USART_FAILURE) + { + usart_write_line(usart, "Error!!!\n"); + retval = USART_FAILURE; + break; + } + if (rx_char == '\x03') + { + retval = USART_FAILURE; + break; + } + usart_putchar(usart, rx_char); + if (rx_char == '\r') + { + usart_putchar(usart, '\n'); + break; + } + } + + return retval; +} + + +//! @} diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/USART/usart.h b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/USART/usart.h new file mode 100644 index 0000000..bc1c100 --- /dev/null +++ b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/USART/usart.h @@ -0,0 +1,889 @@ +/* This header file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ + +/*This file is prepared for Doxygen automatic documentation generation.*/ +/*! \file ********************************************************************* + * + * \brief USART driver for AVR32 UC3. + * + * This file contains basic functions for the AVR32 USART, with support for all + * modes, settings and clock speeds. + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 devices with a USART module can be used. + * - AppNote: + * + * \author Atmel Corporation: http://www.atmel.com \n + * Support and FAQ: http://support.atmel.no/ + * + ******************************************************************************/ + +/* Copyright (c) 2009 Atmel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an Atmel + * AVR product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE + * + */ + +#ifndef _USART_H_ +#define _USART_H_ + +#include <avr32/io.h> +#include "compiler.h" + + +/*! \name Return Values + */ +//! @{ +#define USART_SUCCESS 0 //!< Successful completion. +#define USART_FAILURE -1 //!< Failure because of some unspecified reason. +#define USART_INVALID_INPUT 1 //!< Input value out of range. +#define USART_INVALID_ARGUMENT -1 //!< Argument value out of range. +#define USART_TX_BUSY 2 //!< Transmitter was busy. +#define USART_RX_EMPTY 3 //!< Nothing was received. +#define USART_RX_ERROR 4 //!< Transmission error occurred. +#define USART_MODE_FAULT 5 //!< USART not in the appropriate mode. +//! @} + +//! Default time-out value (number of attempts). +#define USART_DEFAULT_TIMEOUT 10000 + +/*! \name Parity Settings + */ +//! @{ +#define USART_EVEN_PARITY AVR32_USART_MR_PAR_EVEN //!< Use even parity on character transmission. +#define USART_ODD_PARITY AVR32_USART_MR_PAR_ODD //!< Use odd parity on character transmission. +#define USART_SPACE_PARITY AVR32_USART_MR_PAR_SPACE //!< Use a space as parity bit. +#define USART_MARK_PARITY AVR32_USART_MR_PAR_MARK //!< Use a mark as parity bit. +#define USART_NO_PARITY AVR32_USART_MR_PAR_NONE //!< Don't use a parity bit. +#define USART_MULTIDROP_PARITY AVR32_USART_MR_PAR_MULTI //!< Parity bit is used to flag address characters. +//! @} + +/*! \name Stop Bits Settings + */ +//! @{ +#define USART_1_STOPBIT AVR32_USART_MR_NBSTOP_1 //!< Use 1 stop bit. +#define USART_1_5_STOPBITS AVR32_USART_MR_NBSTOP_1_5 //!< Use 1.5 stop bits. +#define USART_2_STOPBITS AVR32_USART_MR_NBSTOP_2 //!< Use 2 stop bits (for more, just give the number of bits). +//! @} + +/*! \name Channel Modes + */ +//! @{ +#define USART_NORMAL_CHMODE AVR32_USART_MR_CHMODE_NORMAL //!< Normal communication. +#define USART_AUTO_ECHO AVR32_USART_MR_CHMODE_ECHO //!< Echo data. +#define USART_LOCAL_LOOPBACK AVR32_USART_MR_CHMODE_LOCAL_LOOP //!< Local loopback. +#define USART_REMOTE_LOOPBACK AVR32_USART_MR_CHMODE_REMOTE_LOOP //!< Remote loopback. +//! @} + +#if defined(AVR32_USART_400_H_INCLUDED) || \ + defined(AVR32_USART_410_H_INCLUDED) || \ + defined(AVR32_USART_420_H_INCLUDED) || \ + defined(AVR32_USART_440_H_INCLUDED) || \ + defined(AVR32_USART_602_H_INCLUDED) + +/*! \name LIN Node Actions + */ +//! @{ +#define USART_LIN_PUBLISH_ACTION AVR32_USART_LINMR_NACT_PUBLISH //!< The USART transmits the response. +#define USART_LIN_SUBSCRIBE_ACTION AVR32_USART_LINMR_NACT_SUBSCRIBE //!< The USART receives the response. +#define USART_LIN_IGNORE_ACTION AVR32_USART_LINMR_NACT_IGNORE //!< The USART does not transmit and does not receive the reponse. +//! @} + +/*! \name LIN Checksum Types + */ +//! @{ +#define USART_LIN_ENHANCED_CHECKSUM 0 //!< LIN 2.0 "enhanced" checksum. +#define USART_LIN_CLASSIC_CHECKSUM 1 //!< LIN 1.3 "classic" checksum. +//! @} + +#endif // USART rev. >= 4.0.0 + + +//! Input parameters when initializing RS232 and similar modes. +typedef struct +{ + //! Set baud rate of the USART (unused in slave modes). + unsigned long baudrate; + + //! Number of bits to transmit as a character (5 to 9). + unsigned char charlength; + + //! How to calculate the parity bit: \ref USART_EVEN_PARITY, \ref USART_ODD_PARITY, + //! \ref USART_SPACE_PARITY, \ref USART_MARK_PARITY, \ref USART_NO_PARITY or + //! \ref USART_MULTIDROP_PARITY. + unsigned char paritytype; + + //! Number of stop bits between two characters: \ref USART_1_STOPBIT, + //! \ref USART_1_5_STOPBITS, \ref USART_2_STOPBITS or any number from 3 to 257 + //! which will result in a time guard period of that length between characters. + //! \note \ref USART_1_5_STOPBITS is supported in asynchronous modes only. + unsigned short stopbits; + + //! Run the channel in testmode: \ref USART_NORMAL_CHMODE, \ref USART_AUTO_ECHO, + //! \ref USART_LOCAL_LOOPBACK or \ref USART_REMOTE_LOOPBACK. + unsigned char channelmode; +} usart_options_t; + +//! Input parameters when initializing ISO7816 mode. +typedef struct +{ + //! Set the frequency of the ISO7816 clock. + unsigned long iso7816_hz; + + //! The number of ISO7816 clock ticks in every bit period (1 to 2047, 0 = disable clock). + //! Bit rate = \ref iso7816_hz / \ref fidi_ratio. + unsigned short fidi_ratio; + + //! How to calculate the parity bit: \ref USART_EVEN_PARITY for normal mode or + //! \ref USART_ODD_PARITY for inverse mode. + unsigned char paritytype; + + //! Inhibit Non Acknowledge:\n + //! - 0: the NACK is generated;\n + //! - 1: the NACK is not generated. + //! + //! \note This bit will be used only in ISO7816 mode, protocol T = 0 receiver. + int inhibit_nack; + + //! Disable successive NACKs. + //! Successive parity errors are counted up to the value in the \ref max_iterations field. + //! These parity errors generate a NACK on the ISO line. As soon as this value is reached, + //! no addititional NACK is sent on the ISO line. The ITERATION flag is asserted. + int dis_suc_nack; + + //! Max number of repetitions (0 to 7). + unsigned char max_iterations; + + //! Bit order in transmitted characters:\n + //! - 0: LSB first;\n + //! - 1: MSB first. + int bit_order; +} usart_iso7816_options_t; + +#if defined(AVR32_USART_400_H_INCLUDED) || \ + defined(AVR32_USART_410_H_INCLUDED) || \ + defined(AVR32_USART_420_H_INCLUDED) || \ + defined(AVR32_USART_440_H_INCLUDED) || \ + defined(AVR32_USART_602_H_INCLUDED) + +//! Input parameters when initializing SPI mode. +typedef struct +{ + //! Set the frequency of the SPI clock (unused in slave mode). + unsigned long baudrate; + + //! Number of bits to transmit as a character (5 to 9). + unsigned char charlength; + + //! Which SPI mode to use. + unsigned char spimode; + + //! Run the channel in testmode: \ref USART_NORMAL_CHMODE, \ref USART_AUTO_ECHO, + //! \ref USART_LOCAL_LOOPBACK or \ref USART_REMOTE_LOOPBACK. + unsigned char channelmode; +} usart_spi_options_t; + +#endif // USART rev. >= 4.0.0 + + +//------------------------------------------------------------------------------ +/*! \name Initialization Functions + */ +//! @{ + +/*! \brief Resets the USART and disables TX and RX. + * + * \param usart Base address of the USART instance. + */ +extern void usart_reset(volatile avr32_usart_t *usart); + +/*! \brief Sets up the USART to use the standard RS232 protocol. + * + * \param usart Base address of the USART instance. + * \param opt Options needed to set up RS232 communication (see \ref usart_options_t). + * \param pba_hz USART module input clock frequency (PBA clock, Hz). + * + * \retval USART_SUCCESS Mode successfully initialized. + * \retval USART_INVALID_INPUT One or more of the arguments is out of valid range. + */ +extern int usart_init_rs232(volatile avr32_usart_t *usart, const usart_options_t *opt, long pba_hz); + +/*! \brief Sets up the USART to use the standard RS232 protocol in TX-only mode. + * + * Compared to \ref usart_init_rs232, this function allows very high baud rates + * (up to \a pba_hz instead of \a pba_hz / \c 8) at the expense of full duplex. + * + * \param usart Base address of the USART instance. + * \param opt Options needed to set up RS232 communication (see \ref usart_options_t). + * \param pba_hz USART module input clock frequency (PBA clock, Hz). + * + * \retval USART_SUCCESS Mode successfully initialized. + * \retval USART_INVALID_INPUT One or more of the arguments is out of valid range. + * + * \note The \c 1.5 stop bit is not supported in this mode. + */ +extern int usart_init_rs232_tx_only(volatile avr32_usart_t *usart, const usart_options_t *opt, long pba_hz); + +/*! \brief Sets up the USART to use hardware handshaking. + * + * \param usart Base address of the USART instance. + * \param opt Options needed to set up RS232 communication (see \ref usart_options_t). + * \param pba_hz USART module input clock frequency (PBA clock, Hz). + * + * \retval USART_SUCCESS Mode successfully initialized. + * \retval USART_INVALID_INPUT One or more of the arguments is out of valid range. + * + * \note \ref usart_init_rs232 does not need to be invoked before this function. + */ +extern int usart_init_hw_handshaking(volatile avr32_usart_t *usart, const usart_options_t *opt, long pba_hz); + +/*! \brief Sets up the USART to use the modem protocol, activating dedicated inputs/outputs. + * + * \param usart Base address of the USART instance. + * \param opt Options needed to set up RS232 communication (see \ref usart_options_t). + * \param pba_hz USART module input clock frequency (PBA clock, Hz). + * + * \retval USART_SUCCESS Mode successfully initialized. + * \retval USART_INVALID_INPUT One or more of the arguments is out of valid range. + */ +extern int usart_init_modem(volatile avr32_usart_t *usart, const usart_options_t *opt, long pba_hz); + +/*! \brief Sets up the USART to use a synchronous RS232-like protocol in master mode. + * + * \param usart Base address of the USART instance. + * \param opt Options needed to set up RS232 communication (see \ref usart_options_t). + * \param pba_hz USART module input clock frequency (PBA clock, Hz). + * + * \retval USART_SUCCESS Mode successfully initialized. + * \retval USART_INVALID_INPUT One or more of the arguments is out of valid range. + */ +extern int usart_init_sync_master(volatile avr32_usart_t *usart, const usart_options_t *opt, long pba_hz); + +/*! \brief Sets up the USART to use a synchronous RS232-like protocol in slave mode. + * + * \param usart Base address of the USART instance. + * \param opt Options needed to set up RS232 communication (see \ref usart_options_t). + * \param pba_hz USART module input clock frequency (PBA clock, Hz). + * + * \retval USART_SUCCESS Mode successfully initialized. + * \retval USART_INVALID_INPUT One or more of the arguments is out of valid range. + */ +extern int usart_init_sync_slave(volatile avr32_usart_t *usart, const usart_options_t *opt, long pba_hz); + +/*! \brief Sets up the USART to use the RS485 protocol. + * + * \param usart Base address of the USART instance. + * \param opt Options needed to set up RS232 communication (see \ref usart_options_t). + * \param pba_hz USART module input clock frequency (PBA clock, Hz). + * + * \retval USART_SUCCESS Mode successfully initialized. + * \retval USART_INVALID_INPUT One or more of the arguments is out of valid range. + */ +extern int usart_init_rs485(volatile avr32_usart_t *usart, const usart_options_t *opt, long pba_hz); + +/*! \brief Sets up the USART to use the IrDA protocol. + * + * \param usart Base address of the USART instance. + * \param opt Options needed to set up RS232 communication (see \ref usart_options_t). + * \param pba_hz USART module input clock frequency (PBA clock, Hz). + * \param irda_filter Counter used to distinguish received ones from zeros. + * + * \retval USART_SUCCESS Mode successfully initialized. + * \retval USART_INVALID_INPUT One or more of the arguments is out of valid range. + */ +extern int usart_init_IrDA(volatile avr32_usart_t *usart, const usart_options_t *opt, + long pba_hz, unsigned char irda_filter); + +/*! \brief Sets up the USART to use the ISO7816 T=0 or T=1 smartcard protocols. + * + * The receiver is enabled by default. \ref usart_iso7816_enable_receiver and + * \ref usart_iso7816_enable_transmitter can be called to change the half-duplex + * communication direction. + * + * \param usart Base address of the USART instance. + * \param opt Options needed to set up ISO7816 communication (see \ref usart_iso7816_options_t). + * \param t ISO7816 mode to use (T=0 or T=1). + * \param pba_hz USART module input clock frequency (PBA clock, Hz). + * + * \retval USART_SUCCESS Mode successfully initialized. + * \retval USART_INVALID_INPUT One or more of the arguments is out of valid range. + */ +extern int usart_init_iso7816(volatile avr32_usart_t *usart, const usart_iso7816_options_t *opt, int t, long pba_hz); + +#if defined(AVR32_USART_400_H_INCLUDED) || \ + defined(AVR32_USART_410_H_INCLUDED) || \ + defined(AVR32_USART_420_H_INCLUDED) || \ + defined(AVR32_USART_440_H_INCLUDED) || \ + defined(AVR32_USART_602_H_INCLUDED) + +/*! \brief Sets up the USART to use the LIN master mode. + * + * \param usart Base address of the USART instance. + * \param baudrate Baud rate. + * \param pba_hz USART module input clock frequency (PBA clock, Hz). + * + */ +extern int usart_init_lin_master(volatile avr32_usart_t *usart, unsigned long baudrate, long pba_hz); + +/*! \brief Sets up the USART to use the LIN slave mode. + * + * \param usart Base address of the USART instance. + * \param baudrate Baud rate. + * \param pba_hz USART module input clock frequency (PBA clock, Hz). + * + */ +extern int usart_init_lin_slave(volatile avr32_usart_t *usart, unsigned long baudrate, long pba_hz); + +/*! \brief Sets up the USART to use the SPI master mode. + * + * \ref usart_spi_selectChip and \ref usart_spi_unselectChip can be called to + * select or unselect the SPI slave chip. + * + * \param usart Base address of the USART instance. + * \param opt Options needed to set up SPI mode (see \ref usart_spi_options_t). + * \param pba_hz USART module input clock frequency (PBA clock, Hz). + * + * \retval USART_SUCCESS Mode successfully initialized. + * \retval USART_INVALID_INPUT One or more of the arguments is out of valid range. + */ +extern int usart_init_spi_master(volatile avr32_usart_t *usart, const usart_spi_options_t *opt, long pba_hz); + +/*! \brief Sets up the USART to use the SPI slave mode. + * + * \param usart Base address of the USART instance. + * \param opt Options needed to set up SPI mode (see \ref usart_spi_options_t). + * \param pba_hz USART module input clock frequency (PBA clock, Hz). + * + * \retval USART_SUCCESS Mode successfully initialized. + * \retval USART_INVALID_INPUT One or more of the arguments is out of valid range. + */ +extern int usart_init_spi_slave(volatile avr32_usart_t *usart, const usart_spi_options_t *opt, long pba_hz); + +#endif // USART rev. >= 4.0.0 + +//! @} + + +//------------------------------------------------------------------------------ +/*! \name Read and Reset Error Status Bits + */ +//! @{ + +/*! \brief Resets the error status. + * + * This function resets the status bits indicating that a parity error, + * framing error or overrun has occurred. The RXBRK bit, indicating + * a start/end of break condition on the RX line, is also reset. + * + * \param usart Base address of the USART instance. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void usart_reset_status(volatile avr32_usart_t *usart) +{ + usart->cr = AVR32_USART_CR_RSTSTA_MASK; +} + +/*! \brief Checks if a parity error has occurred since last status reset. + * + * \param usart Base address of the USART instance. + * + * \return \c 1 if a parity error has been detected, otherwise \c 0. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ int usart_parity_error(volatile avr32_usart_t *usart) +{ + return (usart->csr & AVR32_USART_CSR_PARE_MASK) != 0; +} + +/*! \brief Checks if a framing error has occurred since last status reset. + * + * \param usart Base address of the USART instance. + * + * \return \c 1 if a framing error has been detected, otherwise \c 0. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ int usart_framing_error(volatile avr32_usart_t *usart) +{ + return (usart->csr & AVR32_USART_CSR_FRAME_MASK) != 0; +} + +/*! \brief Checks if an overrun error has occurred since last status reset. + * + * \param usart Base address of the USART instance. + * + * \return \c 1 if a overrun error has been detected, otherwise \c 0. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ int usart_overrun_error(volatile avr32_usart_t *usart) +{ + return (usart->csr & AVR32_USART_CSR_OVRE_MASK) != 0; +} + +#if defined(AVR32_USART_400_H_INCLUDED) || \ + defined(AVR32_USART_410_H_INCLUDED) || \ + defined(AVR32_USART_420_H_INCLUDED) || \ + defined(AVR32_USART_440_H_INCLUDED) || \ + defined(AVR32_USART_602_H_INCLUDED) + +/*! \brief Get LIN Error Status + * + * \param usart Base address of the USART instance. + * + * \retval The binary value of the error field. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ int usart_lin_get_error(volatile avr32_usart_t *usart) +{ + return (usart->csr & (AVR32_USART_CSR_LINSNRE_MASK | + AVR32_USART_CSR_LINCE_MASK | + AVR32_USART_CSR_LINIPE_MASK | + AVR32_USART_CSR_LINISFE_MASK | + AVR32_USART_CSR_LINBE_MASK)) >> AVR32_USART_CSR_LINBE_OFFSET; +} + +#endif // USART rev. >= 4.0.0 + +//! @} + + +//------------------------------------------------------------------------------ +/*! \name ISO7816 Control Functions + */ +//! @{ + +/*! \brief Enables the ISO7816 receiver. + * + * The ISO7816 transmitter is disabled. + * + * \param usart Base address of the USART instance. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void usart_iso7816_enable_receiver(volatile avr32_usart_t *usart) +{ + usart->cr = AVR32_USART_CR_TXDIS_MASK | AVR32_USART_CR_RXEN_MASK; +} + +/*! \brief Enables the ISO7816 transmitter. + * + * The ISO7816 receiver is disabled. + * + * \param usart Base address of the USART instance. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void usart_iso7816_enable_transmitter(volatile avr32_usart_t *usart) +{ + usart->cr = AVR32_USART_CR_RXDIS_MASK | AVR32_USART_CR_TXEN_MASK; +} + +//! @} + + +//------------------------------------------------------------------------------ +#if defined(AVR32_USART_400_H_INCLUDED) || \ + defined(AVR32_USART_410_H_INCLUDED) || \ + defined(AVR32_USART_420_H_INCLUDED) || \ + defined(AVR32_USART_440_H_INCLUDED) || \ + defined(AVR32_USART_602_H_INCLUDED) + +/*! \name LIN Control Functions + */ +//! @{ + +/*! \brief Sets the node action. + * + * \param usart Base address of the USART instance. + * \param action The node action: \ref USART_LIN_PUBLISH_ACTION, + * \ref USART_LIN_SUBSCRIBE_ACTION or + * \ref USART_LIN_IGNORE_ACTION. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void usart_lin_set_node_action(volatile avr32_usart_t *usart, unsigned char action) +{ + usart->linmr = (usart->linmr & ~AVR32_USART_LINMR_NACT_MASK) | + action << AVR32_USART_LINMR_NACT_OFFSET; +} + +/*! \brief Enables or disables the Identifier parity. + * + * \param usart Base address of the USART instance. + * \param parity Whether to enable the Identifier parity: \c TRUE or \c FALSE. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void usart_lin_enable_parity(volatile avr32_usart_t *usart, unsigned char parity) +{ + usart->linmr = (usart->linmr & ~AVR32_USART_LINMR_PARDIS_MASK) | + !parity << AVR32_USART_LINMR_PARDIS_OFFSET; +} + +/*! \brief Enables or disables the checksum. + * + * \param usart Base address of the USART instance. + * \param parity Whether to enable the checksum: \c TRUE or \c FALSE. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void usart_lin_enable_checksum(volatile avr32_usart_t *usart, unsigned char checksum) +{ + usart->linmr = (usart->linmr & ~AVR32_USART_LINMR_CHKDIS_MASK) | + !checksum << AVR32_USART_LINMR_CHKDIS_OFFSET; +} + +/*! \brief Sets the checksum type. + * + * \param usart Base address of the USART instance. + * \param chktyp The checksum type: \ref USART_LIN_ENHANCED_CHEKSUM or + * \ref USART_LIN_CLASSIC_CHECKSUM. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void usart_lin_set_checksum(volatile avr32_usart_t *usart, unsigned char chktyp) +{ + usart->linmr = (usart->linmr & ~AVR32_USART_LINMR_CHKTYP_MASK) | + chktyp << AVR32_USART_LINMR_CHKTYP_OFFSET; +} + +/*! \brief Gets the response data length. + * + * \param usart Base address of the USART instance. + * + * \return The response data length. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ unsigned char usart_lin_get_data_length(volatile avr32_usart_t *usart) +{ + if (usart->linmr & AVR32_USART_LINMR_DLM_MASK) + { + unsigned char data_length = 1 << ((usart->linir >> (AVR32_USART_LINIR_IDCHR_OFFSET + 4)) & 0x03); + if (data_length == 1) + data_length = 2; + return data_length; + } + else + return ((usart->linmr & AVR32_USART_LINMR_DLC_MASK) >> AVR32_USART_LINMR_DLC_OFFSET) + 1; +} + +/*! \brief Sets the response data length for LIN 1.x. + * + * \param usart Base address of the USART instance. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void usart_lin_set_data_length_lin1x(volatile avr32_usart_t *usart) +{ + usart->linmr |= AVR32_USART_LINMR_DLM_MASK; +} + +/*! \brief Sets the response data length for LIN 2.x. + * + * \param usart Base address of the USART instance. + * \param data_length The response data length. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void usart_lin_set_data_length_lin2x(volatile avr32_usart_t *usart, unsigned char data_length) +{ + usart->linmr = (usart->linmr & ~(AVR32_USART_LINMR_DLC_MASK | + AVR32_USART_LINMR_DLM_MASK)) | + (data_length - 1) << AVR32_USART_LINMR_DLC_OFFSET; +} + +/*! \brief Enables or disables the frame slot mode. + * + * \param usart Base address of the USART instance. + * \param frameslot Whether to enable the frame slot mode: \c TRUE or + * \c FALSE. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void usart_lin_enable_frameslot(volatile avr32_usart_t *usart, unsigned char frameslot) +{ + usart->linmr = (usart->linmr & ~AVR32_USART_LINMR_FSDIS_MASK) | + !frameslot << AVR32_USART_LINMR_FSDIS_OFFSET; +} + +/*! \brief Gets the Identifier character. + * + * \param usart Base address of the USART instance. + * + * \return The Identifier character. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ unsigned char usart_lin_get_id_char(volatile avr32_usart_t *usart) +{ + return (usart->linir & AVR32_USART_LINIR_IDCHR_MASK) >> AVR32_USART_LINIR_IDCHR_OFFSET; +} + +/*! \brief Sets the Identifier character. + * + * \param usart Base address of the USART instance. + * \param id_char The Identifier character. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void usart_lin_set_id_char(volatile avr32_usart_t *usart, unsigned char id_char) +{ + usart->linir = (usart->linir & ~AVR32_USART_LINIR_IDCHR_MASK) | + id_char << AVR32_USART_LINIR_IDCHR_OFFSET; +} + +//! @} + +#endif // USART rev. >= 4.0.0 + + +//------------------------------------------------------------------------------ +#if defined(AVR32_USART_400_H_INCLUDED) || \ + defined(AVR32_USART_410_H_INCLUDED) || \ + defined(AVR32_USART_420_H_INCLUDED) || \ + defined(AVR32_USART_440_H_INCLUDED) || \ + defined(AVR32_USART_602_H_INCLUDED) + +/*! \name SPI Control Functions + */ +//! @{ + +/*! \brief Selects SPI slave chip. + * + * \param usart Base address of the USART instance. + * + * \retval USART_SUCCESS Success. + */ +extern int usart_spi_selectChip(volatile avr32_usart_t *usart); + +/*! \brief Unselects SPI slave chip. + * + * \param usart Base address of the USART instance. + * + * \retval USART_SUCCESS Success. + * \retval USART_FAILURE Time-out. + */ +extern int usart_spi_unselectChip(volatile avr32_usart_t *usart); + +//! @} + +#endif // USART rev. >= 4.0.0 + + +//------------------------------------------------------------------------------ +/*! \name Transmit/Receive Functions + */ +//! @{ + +/*! \brief Addresses a receiver. + * + * While in RS485 mode, receivers only accept data addressed to them. + * A packet/char with the address tag set has to precede any data. + * This function is used to address a receiver. This receiver should read + * all the following data, until an address packet addresses another receiver. + * + * \param usart Base address of the USART instance. + * \param address Address of the target device. + * + * \retval USART_SUCCESS Address successfully sent (if current mode is RS485). + * \retval USART_MODE_FAULT Wrong operating mode. + */ +extern int usart_send_address(volatile avr32_usart_t *usart, int address); + +/*! \brief Tests if the USART is ready to transmit a character. + * + * \param usart Base address of the USART instance. + * + * \return \c 1 if the USART Transmit Holding Register is free, otherwise \c 0. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ int usart_tx_ready(volatile avr32_usart_t *usart) +{ + return (usart->csr & AVR32_USART_CSR_TXRDY_MASK) != 0; +} + +/*! \brief Writes the given character to the TX buffer if the transmitter is ready. + * + * \param usart Base address of the USART instance. + * \param c The character (up to 9 bits) to transmit. + * + * \retval USART_SUCCESS The transmitter was ready. + * \retval USART_TX_BUSY The transmitter was busy. + */ +extern int usart_write_char(volatile avr32_usart_t *usart, int c); + +/*! \brief An active wait writing a character to the USART. + * + * \param usart Base address of the USART instance. + * \param c The character (up to 9 bits) to transmit. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void usart_bw_write_char(volatile avr32_usart_t *usart, int c) +{ + while (usart_write_char(usart, c) != USART_SUCCESS); +} + +/*! \brief Sends a character with the USART. + * + * \param usart Base address of the USART instance. + * \param c Character to write. + * + * \retval USART_SUCCESS The character was written. + * \retval USART_FAILURE The function timed out before the USART transmitter became ready to send. + */ +extern int usart_putchar(volatile avr32_usart_t *usart, int c); + +/*! \brief Tests if all requested USART transmissions are over. + * + * \param usart Base address of the USART instance. + * + * \return \c 1 if the USART Transmit Shift Register and the USART Transmit + * Holding Register are free, otherwise \c 0. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ int usart_tx_empty(volatile avr32_usart_t *usart) +{ + return (usart->csr & AVR32_USART_CSR_TXEMPTY_MASK) != 0; +} + +/*! \brief Tests if the USART contains a received character. + * + * \param usart Base address of the USART instance. + * + * \return \c 1 if the USART Receive Holding Register is full, otherwise \c 0. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ int usart_test_hit(volatile avr32_usart_t *usart) +{ + return (usart->csr & AVR32_USART_CSR_RXRDY_MASK) != 0; +} + +/*! \brief Checks the RX buffer for a received character, and stores it at the + * given memory location. + * + * \param usart Base address of the USART instance. + * \param c Pointer to the where the read character should be stored + * (must be at least short in order to accept 9-bit characters). + * + * \retval USART_SUCCESS The character was read successfully. + * \retval USART_RX_EMPTY The RX buffer was empty. + * \retval USART_RX_ERROR An error was deteceted. + */ +extern int usart_read_char(volatile avr32_usart_t *usart, int *c); + +/*! \brief Waits until a character is received, and returns it. + * + * \param usart Base address of the USART instance. + * + * \return The received character, or \ref USART_FAILURE upon error. + */ +extern int usart_getchar(volatile avr32_usart_t *usart); + +/*! \brief Writes one character string to the USART. + * + * \param usart Base address of the USART instance. + * \param string String to be written. + */ +extern void usart_write_line(volatile avr32_usart_t *usart, const char *string); + +/*! \brief Gets and echoes characters until end of line. + * + * \param usart Base address of the USART instance. + * + * \retval USART_SUCCESS Success. + * \retval USART_FAILURE Low-level error detected or ETX character received. + */ +extern int usart_get_echo_line(volatile avr32_usart_t *usart); + +#if defined(AVR32_USART_400_H_INCLUDED) || \ + defined(AVR32_USART_410_H_INCLUDED) || \ + defined(AVR32_USART_420_H_INCLUDED) || \ + defined(AVR32_USART_440_H_INCLUDED) || \ + defined(AVR32_USART_602_H_INCLUDED) + +/*! \brief Abort LIN transmission. + * + * \param usart Base address of the USART instance. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ void usart_lin_abort(volatile avr32_usart_t *usart) +{ + usart->cr = AVR32_USART_LINABT_MASK; +} + +/*! \brief Tests if a LIN transfer has been completed. + * + * \param usart Base address of the USART instance. + * + * \return \c 1 if a LIN transfer has been completed, otherwise \c 0. + */ +#if (defined __GNUC__) +__attribute__((__always_inline__)) +#endif +extern __inline__ int usart_lin_transfer_completed(volatile avr32_usart_t *usart) +{ + return (usart->csr & AVR32_USART_CSR_LINTC_MASK) != 0; +} + +#endif // USART rev. >= 4.0.0 + +//! @} + + +#endif // _USART_H_ |