diff options
Diffstat (limited to 'firmwares/wifishield/wifi_dnld/src/SOFTWARE_FRAMEWORK/DRIVERS/GPIO')
| -rw-r--r-- | firmwares/wifishield/wifi_dnld/src/SOFTWARE_FRAMEWORK/DRIVERS/GPIO/gpio.c | 458 | ||||
| -rw-r--r-- | firmwares/wifishield/wifi_dnld/src/SOFTWARE_FRAMEWORK/DRIVERS/GPIO/gpio.h | 583 |
2 files changed, 0 insertions, 1041 deletions
diff --git a/firmwares/wifishield/wifi_dnld/src/SOFTWARE_FRAMEWORK/DRIVERS/GPIO/gpio.c b/firmwares/wifishield/wifi_dnld/src/SOFTWARE_FRAMEWORK/DRIVERS/GPIO/gpio.c deleted file mode 100644 index b6b83c7..0000000 --- a/firmwares/wifishield/wifi_dnld/src/SOFTWARE_FRAMEWORK/DRIVERS/GPIO/gpio.c +++ /dev/null @@ -1,458 +0,0 @@ -/* 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/wifi_dnld/src/SOFTWARE_FRAMEWORK/DRIVERS/GPIO/gpio.h b/firmwares/wifishield/wifi_dnld/src/SOFTWARE_FRAMEWORK/DRIVERS/GPIO/gpio.h deleted file mode 100644 index f0b5fd8..0000000 --- a/firmwares/wifishield/wifi_dnld/src/SOFTWARE_FRAMEWORK/DRIVERS/GPIO/gpio.h +++ /dev/null @@ -1,583 +0,0 @@ -/* 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_ |