167 lines
5.2 KiB
C
167 lines
5.2 KiB
C
/****************************************************************************
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* configs/lm3s6432-s2e/src/lm_leds.c
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*
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* Copyright (C) 2010, 2013, 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 <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 "tiva_gpio.h"
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#include "lm3s6432s2e_internal.h"
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/****************************************************************************
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* Pre-processor Definitions
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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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/* Dump GPIO registers */
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#ifdef CONFIG_DEBUG_LEDS
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# define led_dumpgpio(m) tiva_dumpgpio(LED_GPIO, m)
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#else
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# define led_dumpgpio(m)
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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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static uint8_t g_nest;
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/****************************************************************************
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* Name: board_led_initialize
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****************************************************************************/
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#ifdef CONFIG_ARCH_LEDS
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void board_led_initialize(void)
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{
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leddbg("Initializing\n");
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/* Configure Port F, Bit 2 as an output, initial value=OFF */
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led_dumpgpio("board_led_initialize before tiva_configgpio()");
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tiva_configgpio(LED0_GPIO);
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tiva_configgpio(LED1_GPIO);
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led_dumpgpio("board_led_initialize after tiva_configgpio()");
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g_nest = 0;
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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 LED_STARTED:
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case LED_HEAPALLOCATE:
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default:
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break;
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case LED_INIRQ:
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case LED_SIGNAL:
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case LED_ASSERTION:
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case LED_PANIC:
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g_nest++;
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case LED_IRQSENABLED:
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case LED_STACKCREATED:
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led_dumpgpio("board_led_on: before tiva_gpiowrite()");
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tiva_gpiowrite(LED1_GPIO, false);
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led_dumpgpio("board_led_on: after tiva_gpiowrite()");
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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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case LED_IRQSENABLED:
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case LED_STACKCREATED:
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case LED_STARTED:
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case LED_HEAPALLOCATE:
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default:
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break;
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case LED_INIRQ:
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case LED_SIGNAL:
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case LED_ASSERTION:
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case LED_PANIC:
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if (--g_nest <= 0)
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{
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led_dumpgpio("board_led_off: before tiva_gpiowrite()");
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tiva_gpiowrite(LED1_GPIO, true);
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led_dumpgpio("board_led_off: after tiva_gpiowrite()");
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}
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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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