/****************************************************************************
* configs/olimex-lpc-h3131/src/lpc31_leds.c
*
* Copyright (C) 2013 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 "lpc31_internal.h"
#include "lpc_h3131.h"
/****************************************************************************
* 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
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_led_initialize
*
* Description:
* Configure LEDs. LEDs are left in the OFF state.
*
****************************************************************************/
void board_led_initialize(void)
{
/* Turn off both LEDs */
gpio_outputlow(LPC31_IOCONFIG_GPIO, GPIO_LED1);
gpio_outputlow(LPC31_IOCONFIG_GPIO, GPIO_LED2);
}
/****************************************************************************
* Name: board_led_on
*
* Description:
* Select the "logical" ON state:
*
* SYMBOL Value Meaning LED state
* LED2 LED1
* ---------------- ----- ----------------------- -------- --------
* LED_STARTED 0 NuttX has been started OFF OFF
* LED_HEAPALLOCATE 0 Heap has been allocated OFF OFF
* LED_IRQSENABLED 0 Interrupts enabled OFF OFF
* LED_STACKCREATED 1 Idle stack created ON OFF
* LED_INIRQ 2 In an interrupt N/C N/C
* LED_SIGNAL 2 In a signal handler N/C N/C
* LED_ASSERTION 2 An assertion failed N/C N/C
* LED_PANIC 3 The system has crashed N/C Blinking
* LED_IDLE - MCU is is sleep mode Not used
*
****************************************************************************/
#ifdef CONFIG_ARCH_LEDS
void board_led_on(int led)
{
switch (led)
{
case 0:
gpio_outputlow(LPC31_IOCONFIG_GPIO, GPIO_LED1);
gpio_outputlow(LPC31_IOCONFIG_GPIO, GPIO_LED2);
break;
case 1:
gpio_outputlow(LPC31_IOCONFIG_GPIO, GPIO_LED1);
gpio_outputhigh(LPC31_IOCONFIG_GPIO, GPIO_LED2);
break;
case 2:
break;
case 3:
gpio_outputhigh(LPC31_IOCONFIG_GPIO, GPIO_LED1);
break;
}
}
#endif
/****************************************************************************
* Name: board_led_off
*
* Description:
* Select the "logical" OFF state:
*
* SYMBOL Value Meaning LED state
* LED2 LED1
* ---------------- ----- ----------------------- -------- --------
* LED_STARTED 0 NuttX has been started OFF OFF
* LED_HEAPALLOCATE 0 Heap has been allocated OFF OFF
* LED_IRQSENABLED 0 Interrupts enabled OFF OFF
* LED_STACKCREATED 1 Idle stack created ON OFF
* LED_INIRQ 2 In an interrupt N/C N/C
* LED_SIGNAL 2 In a signal handler N/C N/C
* LED_ASSERTION 2 An assertion failed N/C N/C
* LED_PANIC 3 The system has crashed N/C Blinking
* LED_IDLE - MCU is is sleep mode Not used
*
****************************************************************************/
#ifdef CONFIG_ARCH_LEDS
void board_led_off(int led)
{
switch (led)
{
case 0:
case 1:
case 2:
break;
case 3:
gpio_outputlow(LPC31_IOCONFIG_GPIO, GPIO_LED1);
break;
}
}
#endif
/************************************************************************************
* Name: lpc31_setled, and lpc31_setleds
*
* Description:
* These interfaces allow user control of the board LEDs.
*
* If CONFIG_ARCH_LEDS is defined, then NuttX will control both on-board LEDs up
* until the completion of boot. The it will continue to control LED2; LED1 is
* avaiable for application use.
*
* If CONFIG_ARCH_LEDS is not defined, then both LEDs are available for application
* use.
*
************************************************************************************/
void lpc31_setled(int led, bool ledon)
{
uint32_t bit;
#ifndef CONFIG_ARCH_LEDS
if (led == BOARD_LED1)
{
bit = GPIO_LED1;
}
else
#endif
if (led == BOARD_LED2)
{
bit = GPIO_LED2;
}
else
{
return;
}
if (ledon)
{
gpio_outputhigh(LPC31_IOCONFIG_GPIO, bit);
}
else
{
gpio_outputlow(LPC31_IOCONFIG_GPIO, bit);
}
}
void lpc31_setleds(uint8_t ledset)
{
#ifndef CONFIG_ARCH_LEDS
lpc31_setled(BOARD_LED1, (ledset & BOARD_LED1_BIT) != 0);
#endif
lpc31_setled(BOARD_LED2, (ledset & BOARD_LED2_BIT) != 0);
}
