From 0d9a111face4f3629bcae8e52af843792af3b453 Mon Sep 17 00:00:00 2001 From: "David A. Mellis" Date: Thu, 13 Sep 2012 10:41:16 -0400 Subject: Moving into firmwares directory. --- .../src/SOFTWARE_FRAMEWORK/BOARDS/EVK1105/led.c | 346 +++++++++++++++++++++ 1 file changed, 346 insertions(+) create mode 100644 firmwares/wifishield/wifi_dnld/src/SOFTWARE_FRAMEWORK/BOARDS/EVK1105/led.c (limited to 'firmwares/wifishield/wifi_dnld/src/SOFTWARE_FRAMEWORK/BOARDS/EVK1105/led.c') diff --git a/firmwares/wifishield/wifi_dnld/src/SOFTWARE_FRAMEWORK/BOARDS/EVK1105/led.c b/firmwares/wifishield/wifi_dnld/src/SOFTWARE_FRAMEWORK/BOARDS/EVK1105/led.c new file mode 100644 index 0000000..561652a --- /dev/null +++ b/firmwares/wifishield/wifi_dnld/src/SOFTWARE_FRAMEWORK/BOARDS/EVK1105/led.c @@ -0,0 +1,346 @@ +/* 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 AT32UC3A EVK1105 board LEDs support package. + * + * This file contains definitions and services related to the LED features of + * the EVK1105 board. + * + * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 + * - Supported devices: All AVR32 AT32UC3A devices 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 +#include "preprocessor.h" +#include "compiler.h" +#include "evk1105.h" +#include "led.h" + + +//! Structure describing LED hardware connections. +typedef const struct +{ + struct + { + U32 PORT; //!< LED GPIO port. + U32 PIN_MASK; //!< Bit-mask of LED pin in GPIO port. + } GPIO; //!< LED GPIO descriptor. + struct + { + S32 CHANNEL; //!< LED PWM channel (< 0 if N/A). + S32 FUNCTION; //!< LED pin PWM function (< 0 if N/A). + } PWM; //!< LED PWM descriptor. +} tLED_DESCRIPTOR; + + +//! Hardware descriptors of all LEDs. +static tLED_DESCRIPTOR LED_DESCRIPTOR[LED_COUNT] = +{ +#define INSERT_LED_DESCRIPTOR(LED_NO, unused) \ + { \ + {LED##LED_NO##_GPIO / 32, 1 << (LED##LED_NO##_GPIO % 32)},\ + {LED##LED_NO##_PWM, LED##LED_NO##_PWM_FUNCTION } \ + }, + MREPEAT(LED_COUNT, INSERT_LED_DESCRIPTOR, ~) +#undef INSERT_LED_DESCRIPTOR +}; + + +//! Saved state of all LEDs. +static volatile U32 LED_State = (1 << LED_COUNT) - 1; + + +U32 LED_Read_Display(void) +{ + return LED_State; +} + + +void LED_Display(U32 leds) +{ + // Use the LED descriptors to get the connections of a given LED to the MCU. + tLED_DESCRIPTOR *led_descriptor; + volatile avr32_gpio_port_t *led_gpio_port; + + // Make sure only existing LEDs are specified. + leds &= (1 << LED_COUNT) - 1; + + // Update the saved state of all LEDs with the requested changes. + LED_State = leds; + + // For all LEDs... + for (led_descriptor = &LED_DESCRIPTOR[0]; + led_descriptor < LED_DESCRIPTOR + LED_COUNT; + led_descriptor++) + { + // Set the LED to the requested state. + led_gpio_port = &AVR32_GPIO.port[led_descriptor->GPIO.PORT]; + if (leds & 1) + { + led_gpio_port->ovrc = led_descriptor->GPIO.PIN_MASK; + } + else + { + led_gpio_port->ovrs = led_descriptor->GPIO.PIN_MASK; + } + led_gpio_port->oders = led_descriptor->GPIO.PIN_MASK; + led_gpio_port->gpers = led_descriptor->GPIO.PIN_MASK; + leds >>= 1; + } +} + + +U32 LED_Read_Display_Mask(U32 mask) +{ + return Rd_bits(LED_State, mask); +} + + +void LED_Display_Mask(U32 mask, U32 leds) +{ + // Use the LED descriptors to get the connections of a given LED to the MCU. + tLED_DESCRIPTOR *led_descriptor = &LED_DESCRIPTOR[0] - 1; + volatile avr32_gpio_port_t *led_gpio_port; + U8 led_shift; + + // Make sure only existing LEDs are specified. + mask &= (1 << LED_COUNT) - 1; + + // Update the saved state of all LEDs with the requested changes. + Wr_bits(LED_State, mask, leds); + + // While there are specified LEDs left to manage... + while (mask) + { + // Select the next specified LED and set it to the requested state. + led_shift = 1 + ctz(mask); + led_descriptor += led_shift; + led_gpio_port = &AVR32_GPIO.port[led_descriptor->GPIO.PORT]; + leds >>= led_shift - 1; + if (leds & 1) + { + led_gpio_port->ovrc = led_descriptor->GPIO.PIN_MASK; + } + else + { + led_gpio_port->ovrs = led_descriptor->GPIO.PIN_MASK; + } + led_gpio_port->oders = led_descriptor->GPIO.PIN_MASK; + led_gpio_port->gpers = led_descriptor->GPIO.PIN_MASK; + leds >>= 1; + mask >>= led_shift; + } +} + + +Bool LED_Test(U32 leds) +{ + return Tst_bits(LED_State, leds); +} + + +void LED_Off(U32 leds) +{ + // Use the LED descriptors to get the connections of a given LED to the MCU. + tLED_DESCRIPTOR *led_descriptor = &LED_DESCRIPTOR[0] - 1; + volatile avr32_gpio_port_t *led_gpio_port; + U8 led_shift; + + // Make sure only existing LEDs are specified. + leds &= (1 << LED_COUNT) - 1; + + // Update the saved state of all LEDs with the requested changes. + Clr_bits(LED_State, leds); + + // While there are specified LEDs left to manage... + while (leds) + { + // Select the next specified LED and turn it off. + led_shift = 1 + ctz(leds); + led_descriptor += led_shift; + led_gpio_port = &AVR32_GPIO.port[led_descriptor->GPIO.PORT]; + led_gpio_port->ovrs = led_descriptor->GPIO.PIN_MASK; + led_gpio_port->oders = led_descriptor->GPIO.PIN_MASK; + led_gpio_port->gpers = led_descriptor->GPIO.PIN_MASK; + leds >>= led_shift; + } +} + + +void LED_On(U32 leds) +{ + // Use the LED descriptors to get the connections of a given LED to the MCU. + tLED_DESCRIPTOR *led_descriptor = &LED_DESCRIPTOR[0] - 1; + volatile avr32_gpio_port_t *led_gpio_port; + U8 led_shift; + + // Make sure only existing LEDs are specified. + leds &= (1 << LED_COUNT) - 1; + + // Update the saved state of all LEDs with the requested changes. + Set_bits(LED_State, leds); + + // While there are specified LEDs left to manage... + while (leds) + { + // Select the next specified LED and turn it on. + led_shift = 1 + ctz(leds); + led_descriptor += led_shift; + led_gpio_port = &AVR32_GPIO.port[led_descriptor->GPIO.PORT]; + led_gpio_port->ovrc = led_descriptor->GPIO.PIN_MASK; + led_gpio_port->oders = led_descriptor->GPIO.PIN_MASK; + led_gpio_port->gpers = led_descriptor->GPIO.PIN_MASK; + leds >>= led_shift; + } +} + + +void LED_Toggle(U32 leds) +{ + // Use the LED descriptors to get the connections of a given LED to the MCU. + tLED_DESCRIPTOR *led_descriptor = &LED_DESCRIPTOR[0] - 1; + volatile avr32_gpio_port_t *led_gpio_port; + U8 led_shift; + + // Make sure only existing LEDs are specified. + leds &= (1 << LED_COUNT) - 1; + + // Update the saved state of all LEDs with the requested changes. + Tgl_bits(LED_State, leds); + + // While there are specified LEDs left to manage... + while (leds) + { + // Select the next specified LED and toggle it. + led_shift = 1 + ctz(leds); + led_descriptor += led_shift; + led_gpio_port = &AVR32_GPIO.port[led_descriptor->GPIO.PORT]; + led_gpio_port->ovrt = led_descriptor->GPIO.PIN_MASK; + led_gpio_port->oders = led_descriptor->GPIO.PIN_MASK; + led_gpio_port->gpers = led_descriptor->GPIO.PIN_MASK; + leds >>= led_shift; + } +} + + +U32 LED_Read_Display_Field(U32 field) +{ + return Rd_bitfield(LED_State, field); +} + + +void LED_Display_Field(U32 field, U32 leds) +{ + // Move the bit-field to the appropriate position for the bit-mask. + LED_Display_Mask(field, leds << ctz(field)); +} + + +U8 LED_Get_Intensity(U32 led) +{ + tLED_DESCRIPTOR *led_descriptor; + + // Check that the argument value is valid. + led = ctz(led); + led_descriptor = &LED_DESCRIPTOR[led]; + if (led >= LED_COUNT || led_descriptor->PWM.CHANNEL < 0) return 0; + + // Return the duty cycle value if the LED PWM channel is enabled, else 0. + return (AVR32_PWM.sr & (1 << led_descriptor->PWM.CHANNEL)) ? + AVR32_PWM.channel[led_descriptor->PWM.CHANNEL].cdty : 0; +} + + +void LED_Set_Intensity(U32 leds, U8 intensity) +{ + tLED_DESCRIPTOR *led_descriptor = &LED_DESCRIPTOR[0] - 1; + volatile avr32_pwm_channel_t *led_pwm_channel; + volatile avr32_gpio_port_t *led_gpio_port; + U8 led_shift; + + // For each specified LED... + for (leds &= (1 << LED_COUNT) - 1; leds; leds >>= led_shift) + { + // Select the next specified LED and check that it has a PWM channel. + led_shift = 1 + ctz(leds); + led_descriptor += led_shift; + if (led_descriptor->PWM.CHANNEL < 0) continue; + + // Initialize or update the LED PWM channel. + led_pwm_channel = &AVR32_PWM.channel[led_descriptor->PWM.CHANNEL]; + if (!(AVR32_PWM.sr & (1 << led_descriptor->PWM.CHANNEL))) + { + led_pwm_channel->cmr = (AVR32_PWM_CPRE_MCK << AVR32_PWM_CPRE_OFFSET) & + ~(AVR32_PWM_CALG_MASK | + AVR32_PWM_CPOL_MASK | + AVR32_PWM_CPD_MASK); + led_pwm_channel->cprd = 0x000000FF; + led_pwm_channel->cdty = intensity; + AVR32_PWM.ena = 1 << led_descriptor->PWM.CHANNEL; + } + else + { + AVR32_PWM.isr; + while (!(AVR32_PWM.isr & (1 << led_descriptor->PWM.CHANNEL))); + led_pwm_channel->cupd = intensity; + } + + // Switch the LED pin to its PWM function. + led_gpio_port = &AVR32_GPIO.port[led_descriptor->GPIO.PORT]; + if (led_descriptor->PWM.FUNCTION & 0x1) + { + led_gpio_port->pmr0s = led_descriptor->GPIO.PIN_MASK; + } + else + { + led_gpio_port->pmr0c = led_descriptor->GPIO.PIN_MASK; + } + if (led_descriptor->PWM.FUNCTION & 0x2) + { + led_gpio_port->pmr1s = led_descriptor->GPIO.PIN_MASK; + } + else + { + led_gpio_port->pmr1c = led_descriptor->GPIO.PIN_MASK; + } + led_gpio_port->gperc = led_descriptor->GPIO.PIN_MASK; + } +} -- cgit v1.2.3-18-g5258