205 lines
6.2 KiB
C
205 lines
6.2 KiB
C
/****************************************************************************
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* configs/lpc4357-evb/src/lpc43_autoleds.c
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*
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* Copyright (C) 2014-2015 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 <stdint.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 "lpc4357-evb.h"
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#ifdef CONFIG_ARCH_LEDS
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* LED definitions **********************************************************/
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/* The LPC4357-EVB has one user-controllable LED labelled D6 controlled by
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* the signal LED_3V3:
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*
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* ---- ------- -------------
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* LED SIGNAL MCU
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* ---- ------- -------------
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* D6 LED_3V3 PE_7 GPIO7[7]
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* ---- ------- -------------
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*
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* LED is grounded and a high output illuminates the LED.
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*
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* If CONFIG_ARCH_LEDS is defined, the LED will be controlled as follows
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* for NuttX debug functionality (where NC means "No Change").
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*
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* -------------------------- --------
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* LED
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* -------------------------- --------
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* LED_STARTED OFF
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* LED_HEAPALLOCATE OFF
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* LED_IRQSENABLED OFF
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* LED_STACKCREATED ON
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* LED_INIRQ NC
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* LED_SIGNAL NC
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* LED_ASSERTION NC
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* LED_PANIC Flashing
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* -------------------------- --------
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*/
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/* Debug definitions ********************************************************/
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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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# ifdef CONFIG_DEBUG_VERBOSE
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# define LED_VERBOSE 1
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# define ledvdbg lldbg
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# else
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# undef LED_VERBOSE
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# define ledvdbg(x...)
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# endif
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#else
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# undef LED_VERBOSE
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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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* Name: led_dumppins
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****************************************************************************/
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#ifdef LED_VERBOSE
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static void led_dumppins(FAR const char *msg)
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{
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lpc43_pin_dump(PINCONFIG_LED, msg);
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lpc43_gpio_dump(GPIO_LED, msg);
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}
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#else
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# define led_dumppins(m)
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#endif
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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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void board_led_initialize(void)
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{
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/* Configure LED pin as a GPIO outputs */
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led_dumppins("board_led_initialize() Entry)");
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/* Configure LED pin as a GPIO, then configure GPIO as an outputs */
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lpc43_pin_config(PINCONFIG_LED);
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lpc43_gpio_config(GPIO_LED);
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led_dumppins("board_led_initialize() Exit");
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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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bool ledon = true; /* OFF. Low illuminates */
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switch (led)
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{
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default:
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case 0:
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break; /* LED OFF until state 1 */
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case 2:
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return; /* LED no change */
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case 1:
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case 3:
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ledon = false; /* LED ON. Low illuminates */
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break;
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}
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/* Turn LED on or off, depending on state */
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lpc43_gpio_write(GPIO_LED, ledon);
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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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default:
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case 0:
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case 1:
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case 3:
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break; /* LED OFF */
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case 2:
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return; /* LED no change */
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}
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/* LED OFF, Low illuminates */
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lpc43_gpio_write(GPIO_LED, true);
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}
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#endif /* CONFIG_ARCH_LEDS */
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