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/****************************************************************************
* configs/lpc4357-evb/src/lpc43_autoleds.c
*
* Copyright (C) 2014 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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 <stdint.h>
#include <stdbool.h>
#include <debug.h>
#include <arch/board/board.h>
#include "chip.h"
#include "up_arch.h"
#include "up_internal.h"
#include "lpc4357-evb.h"
#ifdef CONFIG_ARCH_LEDS
/****************************************************************************
* Definitions
****************************************************************************/
/* LED definitions **********************************************************/
/* The LPC4357-EVB has one user-controllable LED labelled D6 controlled by
* the signal LED_3V3:
*
* ---- ------- -------------
* LED SIGNAL MCU
* ---- ------- -------------
* D6 LED_3V3 PE_7 GPIO7[7]
* ---- ------- -------------
*
* LED is grounded and a high output illuminates the LED.
*
* If CONFIG_ARCH_LEDS is defined, the LED will be controlled as follows
* for NuttX debug functionality (where NC means "No Change").
*
* -------------------------- --------
* LED
* -------------------------- --------
* LED_STARTED OFF
* LED_HEAPALLOCATE OFF
* LED_IRQSENABLED OFF
* LED_STACKCREATED ON
* LED_INIRQ NC
* LED_SIGNAL NC
* LED_ASSERTION NC
* LED_PANIC Flashing
* -------------------------- --------
*/
/* Debug 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
# ifdef CONFIG_DEBUG_VERBOSE
# define LED_VERBOSE 1
# define ledvdbg lldbg
# else
# undef LED_VERBOSE
# define ledvdbg(x...)
# endif
#else
# undef LED_VERBOSE
# define leddbg(x...)
# define ledvdbg(x...)
#endif
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: led_dumppins
****************************************************************************/
#ifdef LED_VERBOSE
static void led_dumppins(FAR const char *msg)
{
lpc43_pin_dump(PINCONFIG_LED, msg);
lpc43_gpio_dump(GPIO_LED, msg);
}
#else
# define led_dumppins(m)
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_led_initialize
****************************************************************************/
void board_led_initialize(void)
{
/* Configure LED pin as a GPIO outputs */
led_dumppins("board_led_initialize() Entry)");
/* Configure LED pin as a GPIO, then configure GPIO as an outputs */
lpc43_pin_config(PINCONFIG_LED);
lpc43_gpio_config(GPIO_LED);
led_dumppins("board_led_initialize() Exit");
}
/****************************************************************************
* Name: board_led_on
****************************************************************************/
void board_led_on(int led)
{
bool ledon = true; /* OFF. Low illuminates */
switch (led)
{
default:
case 0:
break; /* LED OFF until state 1 */
case 2:
return; /* LED no change */
case 1:
case 3:
ledon = false; /* LED ON. Low illuminates */
break;
}
/* Turn LED on or off, depending on state */
lpc43_gpio_write(GPIO_LED, ledon);
}
/****************************************************************************
* Name: board_led_off
****************************************************************************/
void board_led_off(int led)
{
switch (led)
{
default:
case 0:
case 1:
case 3:
break; /* LED OFF */
case 2:
return; /* LED no change */
}
/* LED OFF, Low illuminates */
lpc43_gpio_write(GPIO_LED, true);
}
#endif /* CONFIG_ARCH_LEDS */
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