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/****************************************************************************
* configs/lm3s6965-ek/src/up_leds.c
*
* Copyright (C) 2012-2013, 2015 Gregory Nutt. All rights reserved.
* Authors: Gregory Nutt <gnutt@nuttx.org>
* Jose Pablo Rojas V. <jrojas@nx-engineering.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdbool.h>
#include <debug.h>
#include <nuttx/board.h>
#include <arch/board/board.h>
#include "chip.h"
#include "up_arch.h"
#include "up_internal.h"
#include "tiva_gpio.h"
#include "ekklm3s9b96_internal.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* CONFIG_DEBUG_LEDS enables debug output from this file (needs CONFIG_DEBUG
* with CONFIG_DEBUG_VERBOSE too)
*/
#ifdef CONFIG_DEBUG_LEDS
# define leddbg lldbg
# define ledvdbg llvdbg
#else
# define leddbg(x...)
# define ledvdbg(x...)
#endif
/* Dump GPIO registers */
#ifdef CONFIG_DEBUG_LEDS
# define led_dumpgpio(m) tiva_dumpgpio(LED_GPIO, m)
#else
# define led_dumpgpio(m)
#endif
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
static uint8_t g_nest;
/****************************************************************************
* Name: board_led_initialize
****************************************************************************/
#ifdef CONFIG_ARCH_LEDS
void board_led_initialize(void)
{
leddbg("Initializing\n");
/* Configure Port D, Bit 0 as an output, initial value=OFF */
led_dumpgpio("board_led_initialize before tiva_configgpio()");
tiva_configgpio(LED_GPIO);
led_dumpgpio("board_led_initialize after tiva_configgpio()");
g_nest = 0;
}
/****************************************************************************
* Name: board_led_on
****************************************************************************/
void board_led_on(int led)
{
switch (led)
{
case LED_STARTED:
case LED_HEAPALLOCATE:
default:
break;
case LED_INIRQ:
case LED_SIGNAL:
case LED_ASSERTION:
case LED_PANIC:
g_nest++;
case LED_IRQSENABLED:
case LED_STACKCREATED:
led_dumpgpio("board_led_on: before tiva_gpiowrite()");
tiva_gpiowrite(LED_GPIO, false);
led_dumpgpio("board_led_on: after tiva_gpiowrite()");
break;
}
}
/****************************************************************************
* Name: board_led_off
****************************************************************************/
void board_led_off(int led)
{
switch (led)
{
case LED_IRQSENABLED:
case LED_STACKCREATED:
case LED_STARTED:
case LED_HEAPALLOCATE:
default:
break;
case LED_INIRQ:
case LED_SIGNAL:
case LED_ASSERTION:
case LED_PANIC:
if (--g_nest <= 0)
{
led_dumpgpio("board_led_off: before tiva_gpiowrite()");
tiva_gpiowrite(LED_GPIO, true);
led_dumpgpio("board_led_off: after tiva_gpiowrite()");
}
break;
}
}
#endif /* CONFIG_ARCH_LEDS */
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