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