6a3c2aded6
* Simplify EINTR/ECANCEL error handling 1. Add semaphore uninterruptible wait function 2 .Replace semaphore wait loop with a single uninterruptible wait 3. Replace all sem_xxx to nxsem_xxx * Unify the void cast usage 1. Remove void cast for function because many place ignore the returned value witout cast 2. Replace void cast for variable with UNUSED macro
183 lines
6.5 KiB
C
183 lines
6.5 KiB
C
/****************************************************************************
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* boards/arm/sam34/sam3u-ek/src/sam_leds.c
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*
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* Copyright (C) 2009-2010, 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 <stdint.h>
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#include <stdbool.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 "chip.h"
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#include "up_arch.h"
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#include "up_internal.h"
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#include "sam_gpio.h"
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#include "sam3u-ek.h"
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#ifdef CONFIG_ARCH_LEDS
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define LED_OFF 0
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#define LED_ON 1
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#define LED_NOCHANGE 2
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#define LED_MASK 3
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#define LED0_SHIFT 0
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#define LED0_OFF (LED_OFF << LED0_SHIFT)
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#define LED0_ON (LED_ON << LED0_SHIFT)
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#define LED0_NOCHANGE (LED_NOCHANGE << LED0_SHIFT)
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#define LED1_SHIFT 2
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#define LED1_OFF (LED_OFF << LED1_SHIFT)
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#define LED1_ON (LED_ON << LED1_SHIFT)
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#define LED1_NOCHANGE (LED_NOCHANGE << LED1_SHIFT)
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#define LED2_SHIFT 4
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#define LED2_OFF (LED_OFF << LED2_SHIFT)
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#define LED2_ON (LED_ON << LED2_SHIFT)
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#define LED2_NOCHANGE (LED_NOCHANGE << LED2_SHIFT)
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static const uint8_t g_ledon[8] =
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{
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(LED0_OFF | LED1_OFF | LED2_OFF), /* LED_STARTED */
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(LED0_ON | LED1_OFF | LED2_ON), /* LED_HEAPALLOCATE */
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(LED0_OFF | LED1_ON | LED2_OFF), /* LED_IRQSENABLED */
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(LED0_ON | LED1_ON | LED2_ON), /* LED_STACKCREATED */
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(LED0_NOCHANGE | LED1_OFF | LED2_NOCHANGE), /* LED_INIRQ */
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(LED0_NOCHANGE | LED1_NOCHANGE | LED2_OFF), /* LED_SIGNAL */
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(LED0_ON | LED1_NOCHANGE | LED2_NOCHANGE), /* LED_ASSERTION */
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(LED0_ON | LED1_NOCHANGE | LED2_NOCHANGE) /* LED_PANIC */
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};
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static const uint8_t g_ledoff[8] =
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{
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(LED0_OFF | LED1_OFF | LED2_OFF), /* LED_STARTED (does not happen) */
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(LED0_ON | LED1_OFF | LED2_ON), /* LED_HEAPALLOCATE (does not happen) */
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(LED0_OFF | LED1_ON | LED2_OFF), /* LED_IRQSENABLED (does not happen) */
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(LED0_ON | LED1_ON | LED2_ON), /* LED_STACKCREATED (does not happen) */
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(LED0_NOCHANGE | LED1_ON | LED2_NOCHANGE), /* LED_INIRQ */
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(LED0_NOCHANGE | LED1_NOCHANGE | LED2_ON), /* LED_SIGNAL */
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(LED0_OFF | LED1_NOCHANGE | LED2_NOCHANGE), /* LED_ASSERTION */
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(LED0_OFF | LED1_NOCHANGE | LED2_NOCHANGE) /* LED_PANIC */
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};
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: sam_setled
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****************************************************************************/
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static void sam_setled(uint16_t pinset, uint8_t state)
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{
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/* Assume active high. Initial state == 0 means active high */
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bool polarity = ((pinset & GPIO_OUTPUT_SET) == 0);
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switch (state)
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{
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case LED_OFF:
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polarity = !polarity;
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case LED_ON:
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break;
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case LED_NOCHANGE:
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default:
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return;
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}
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sam_gpiowrite(pinset, polarity);
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}
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/****************************************************************************
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* Name: sam_setleds
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****************************************************************************/
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static void sam_setleds(uint8_t state)
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{
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sam_setled(GPIO_LED0, (state >> LED0_SHIFT) & LED_MASK);
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sam_setled(GPIO_LED1, (state >> LED1_SHIFT) & LED_MASK);
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sam_setled(GPIO_LED2, (state >> LED2_SHIFT) & LED_MASK);
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: board_autoled_initialize
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****************************************************************************/
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void board_autoled_initialize(void)
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{
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sam_configgpio(GPIO_LED0);
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sam_configgpio(GPIO_LED1);
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sam_configgpio(GPIO_LED2);
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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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sam_setleds(g_ledon[led & 7]);
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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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sam_setleds(g_ledoff[led & 7]);
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}
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#endif /* CONFIG_ARCH_LEDS */
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