163 lines
5.6 KiB
C
163 lines
5.6 KiB
C
/****************************************************************************
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* configs/sam4s-xplained-pro/src/sam_autoleds.c
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*
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* Copyright (C) 2014 Gregory Nutt. All rights reserved.
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* Authors: Gregory Nutt <gnutt@nuttx.org>
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* Bob Doiron
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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 <arch/board/board.h>
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#include "chip.h"
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#include "sam_gpio.h"
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#include "sam4s-xplained-pro.h"
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#ifdef CONFIG_ARCH_LEDS
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/****************************************************************************
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* Definitions
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****************************************************************************/
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/* If CONFIG_ARCH_LEDs is defined, then NuttX will control the LED on
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* board the SAM4S Xplained Pro. The following definitions describe how NuttX
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* controls the LEDs:
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*
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* SYMBOL Meaning LED state
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* D9 D10
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* ------------------- ----------------------- -------- --------
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* LED_STARTED NuttX has been started OFF
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* LED_HEAPALLOCATE Heap has been allocated OFF
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* LED_IRQSENABLED Interrupts enabled OFF
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* LED_STACKCREATED Idle stack created ON
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* LED_INIRQ In an interrupt No change
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* LED_SIGNAL In a signal handler No change
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* LED_ASSERTION An assertion failed No change
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* LED_PANIC The system has crashed OFF
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* LED_IDLE MCU is is sleep mode Not used
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*/
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/* CONFIG_DEBUG_LEDS enables debug output from this file (needs CONFIG_DEBUG
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* with CONFIG_DEBUG_VERBOSE too)
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*/
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#ifdef CONFIG_DEBUG_LEDS
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# define leddbg lldbg
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# define ledvdbg llvdbg
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#else
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# define leddbg(x...)
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# define ledvdbg(x...)
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#endif
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/****************************************************************************
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* Private Data
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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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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: board_led_initialize
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****************************************************************************/
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void board_led_initialize(void)
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{
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/* Configure LED GPIO for output */
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sam_configgpio(GPIO_D301);
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}
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/****************************************************************************
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* Name: board_led_on
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****************************************************************************/
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void board_led_on(int led)
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{
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switch (led)
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{
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case 0: /* LED_STARTED, LED_HEAPALLOCATE, LED_IRQSENABLED - off while initializing */
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sam_gpiowrite(GPIO_D301, LED_D301_OFF);
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break;
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case 1: /* LED_STACKCREATED - turn on when ready */
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sam_gpiowrite(GPIO_D301, LED_D301_ON);
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break;
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case 2: /* LED_INIRQ, LED_SIGNAL - turn off inside irqs/signal processing */
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sam_gpiowrite(GPIO_D301, LED_D301_OFF);
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return;
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case 3: /* LED_PANIC - flash */
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sam_gpiowrite(GPIO_D301, LED_D301_ON);
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break;
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default:
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break;
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}
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}
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/****************************************************************************
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* Name: board_led_off
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****************************************************************************/
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void board_led_off(int led)
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{
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switch (led)
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{
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default:
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break;
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case 2: /* LED_INIRQ, LED_SIGNAL - return to on after irq/signal processing */
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sam_gpiowrite(GPIO_D301, LED_D301_ON);
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return;
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case 3: /* LED_PANIC - flashes */
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sam_gpiowrite(GPIO_D301, LED_D301_OFF);
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break;
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}
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}
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#endif /* CONFIG_ARCH_LEDS */
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