161 lines
5.3 KiB
C
161 lines
5.3 KiB
C
/****************************************************************************
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* configs/dk-tm4c129x/src/tm4c_autoleds.c
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*
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* Copyright (C) 2014-2015 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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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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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* 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 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <debug.h>
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#include <nuttx/board.h>
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#include <arch/board/board.h>
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#include "tiva_gpio.h"
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#include "dk-tm4c129x.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: tm4c_led_initialize
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*
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* Description:
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* Called to initialize the on-board LEDs.
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*
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****************************************************************************/
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#ifdef CONFIG_ARCH_LEDS
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void tm4c_led_initialize(void)
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{
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/* Configure LED PIOs for output */
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tiva_configgpio(GPIO_LED_R);
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tiva_configgpio(GPIO_LED_G);
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tiva_configgpio(GPIO_LED_B);
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}
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/****************************************************************************
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* Name: board_autoled_on
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****************************************************************************/
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void board_autoled_on(int led)
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{
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/* --------------- ------- ---- ----- --------------------
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* STATE VALUE RED GREEN BLUE
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* --------------- ------- ---- ----- --------------------
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* LED_STARTED 0 OFF OFF ON
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* LED_HEAPALLOCATE 1 NC NC NC
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* LED_IRQSENABLED 1 NC NC NC
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* LED_STACKCREATED 2 OFF ON OFF
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* LED_INIRQ 1 NC NC NC
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* LED_SIGNAL 1 NC NC NC
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* LED_ASSERTION 1 NC NC NC
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* LED_PANIC 3 ON OFF OFF (flashing 2Hz)
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* --------------- ------- ---- ----- --------------------
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*
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* A high output illuminates the LED.
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*/
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switch (led)
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{
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case 0: /* R=OFF, G=OFF, B=ON */
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/* Previous state was all OFF */
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tiva_gpiowrite(GPIO_LED_B, true);
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break;
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default:
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case 1: /* No change */
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break;
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case 2: /* R=OFF, G=ON, B=OFF */
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/* Previous state was all: R=OFF, G=OFF, B=ON */
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tiva_gpiowrite(GPIO_LED_G, true);
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tiva_gpiowrite(GPIO_LED_B, false);
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break;
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case 3: /* R=ON, G=OFF, B=OFF */
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/* Previous state was all: R=OFF, G=Unknown, B=Unknown */
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tiva_gpiowrite(GPIO_LED_R, true);
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tiva_gpiowrite(GPIO_LED_G, false);
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tiva_gpiowrite(GPIO_LED_B, false);
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break;
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}
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}
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/****************************************************************************
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* Name: board_autoled_off
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****************************************************************************/
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void board_autoled_off(int led)
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{
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/* --------------- ------- ---- ----- --------------------
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* STATE VALUE RED GREEN BLUE
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* --------------- ------- ---- ----- --------------------
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* LED_STARTED 0 OFF OFF ON
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* LED_HEAPALLOCATE 1 NC NC NC
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* LED_IRQSENABLED 1 NC NC NC
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* LED_STACKCREATED 2 OFF ON OFF
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* LED_INIRQ 1 NC NC NC
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* LED_SIGNAL 1 NC NC NC
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* LED_ASSERTION 1 NC NC NC
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* LED_PANIC 3 ON OFF OFF (flashing 2Hz)
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* --------------- ------- ---- ----- --------------------
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*
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* A high output illuminates the LED.
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*/
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switch (led)
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{
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case 0: /* Will not happen */
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case 1: /* No change */
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case 2: /* Will not happen */
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default:
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break;
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case 3: /* R=OFF, G=OFF, B=OFF */
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/* Previous state was all: R=ON, G=OFF, B=OFF */
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tiva_gpiowrite(GPIO_LED_R, false);
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}
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}
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#endif /* CONFIG_ARCH_LEDS */
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