135 lines
4.2 KiB
C
135 lines
4.2 KiB
C
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/*
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* Copyright (c) 2018, Texas Instruments Incorporated - http://www.ti.com/
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*---------------------------------------------------------------------------*/
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/**
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* \addtogroup simplelink-platform
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* @{
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*
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* \file
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* Driver for LaunchPad LEDs
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*/
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/*---------------------------------------------------------------------------*/
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/* Contiki API */
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#include <contiki.h>
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#include <dev/leds.h>
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/*---------------------------------------------------------------------------*/
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/* Simplelink SDK API */
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#include <Board.h>
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#include <ti/drivers/GPIO.h>
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/*---------------------------------------------------------------------------*/
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/* Standard library */
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#include <stdbool.h>
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#include <stdint.h>
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/*---------------------------------------------------------------------------*/
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/* Available LED configuration */
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/* Green LED */
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#ifdef Board_GPIO_GLED
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# define LEDS_ARCH_GREEN Board_GPIO_GLED
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#endif
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/* Yellow LED */
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#ifdef Board_GPIO_YLED
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# define LEDS_ARCH_YELLOW Board_GPIO_YLED
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#endif
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/* Red LED */
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#ifdef Board_GPIO_RLED
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# define LEDS_ARCH_RED Board_GPIO_RLED
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#endif
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/* Blue LED */
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#ifdef Board_GPIO_BLED
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# define LEDS_ARCH_BLUE Board_GPIO_BLED
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#endif
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/*---------------------------------------------------------------------------*/
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static unsigned char c;
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/*---------------------------------------------------------------------------*/
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void
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leds_arch_init(void)
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{
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static bool bHasInit = false;
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if(bHasInit) {
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return;
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}
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bHasInit = true;
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// GPIO_init will most likely be called in platform.c,
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// but call it here to be sure GPIO is initialized.
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// Calling GPIO_init multiple times is safe.
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GPIO_init();
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}
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/*---------------------------------------------------------------------------*/
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unsigned char
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leds_arch_get(void)
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{
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return c;
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}
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/*---------------------------------------------------------------------------*/
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static inline void
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write_led(const bool on, const uint_fast32_t gpioLed)
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{
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const GPIO_PinConfig pinCfg = (on)
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? Board_GPIO_LED_ON : Board_GPIO_LED_OFF;
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GPIO_write(gpioLed, pinCfg);
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}
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/*---------------------------------------------------------------------------*/
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void
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leds_arch_set(unsigned char leds)
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{
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c = leds;
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#define LED_ON(led_define) ((leds & (led_define)) == (led_define))
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// Green LED
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#ifdef LEDS_ARCH_GREEN
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write_led(LED_ON(LEDS_GREEN), LEDS_ARCH_GREEN);
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#endif
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// Yellow LED
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#ifdef LEDS_ARCH_YELLOW
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write_led(LED_ON(LEDS_YELLOW), LEDS_ARCH_YELLOW);
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#endif
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// Red LED
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#ifdef LEDS_ARCH_RED
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write_led(LED_ON(LEDS_RED), LEDS_ARCH_RED);
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#endif
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// Blue LED
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#ifdef LEDS_ARCH_BLUE
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write_led(LED_ON(LEDS_BLUE), LEDS_ARCH_BLUE);
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#endif
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#undef LED_ON
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}
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/*---------------------------------------------------------------------------*/
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/** @} */
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