178 lines
5.0 KiB
C
178 lines
5.0 KiB
C
/****************************************************************************
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* boards/arm/xmc4/xmc4700-relax/src/xmc4_autoleds.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/* The XMC4700 Relax Lite v1 board has two LEDs:
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*
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* LED1 P5.9 High output illuminates
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* LED2 P5.8 High output illuminates
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*
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* These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is
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* defined. In that case, the usage by the board port is defined in
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* include/board.h and src/sam_autoleds.c. The LEDs are used to encode
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* OS-related events as follows:
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*
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* SYMBOL Meaning LED state
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* LED1 LED2
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* ------------------ ------------------------ ------ ------
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* LED_STARTED NuttX has been started OFF OFF
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* LED_HEAPALLOCATE Heap has been allocated OFF OFF
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* LED_IRQSENABLED Interrupts enabled OFF OFF
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* LED_STACKCREATED Idle stack created ON OFF
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* LED_INIRQ In an interrupt No change
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* LED_SIGNAL In a signal handler No change
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* LED_ASSERTION An assertion failed No change
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* LED_PANIC 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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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/board.h>
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#include <arch/board/board.h>
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#include "xmc4_gpio.h"
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#include "xmc4700-relax.h"
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#ifdef CONFIG_ARCH_LEDS
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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static void board_led1_on(int led)
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{
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bool ledon = false;
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switch (led)
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{
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case 0: /* LED1=OFF */
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break;
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case 1: /* LED1=ON */
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ledon = true;
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break;
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case 2: /* LED1=N/C */
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case 3: /* LED1=N/C */
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default:
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return;
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}
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xmc4_gpio_write(GPIO_LED1, ledon);
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}
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static void board_led2_on(int led)
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{
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bool ledon = false;
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switch (led)
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{
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case 0: /* LED2=OFF */
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case 1: /* LED2=OFF */
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break;
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case 3: /* LED2=ON */
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ledon = true;
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break;
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case 2: /* LED2=N/C */
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default:
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return;
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}
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xmc4_gpio_write(GPIO_LED2, ledon);
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}
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static void board_led1_off(int led)
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{
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switch (led)
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{
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case 0: /* LED1=OFF */
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case 1: /* LED1=OFF */
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break;
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case 2: /* LED1=N/C */
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case 3: /* LED1=N/C */
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default:
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return;
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}
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xmc4_gpio_write(GPIO_LED1, false);
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}
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static void board_led2_off(int led)
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{
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switch (led)
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{
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case 0: /* LED2=OFF */
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case 1: /* LED2=OFF */
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case 3: /* LED2=OFF */
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break;
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case 2: /* LED2=N/C */
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default:
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return;
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}
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xmc4_gpio_write(GPIO_LED2, false);
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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_autoled_initialize
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****************************************************************************/
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void board_autoled_initialize(void)
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{
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/* Configure LED1-2 GPIOs for output */
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xmc4_gpio_config(GPIO_LED1);
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xmc4_gpio_config(GPIO_LED2);
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}
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/****************************************************************************
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* Name: board_autoled_on
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****************************************************************************/
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void board_autoled_on(int led)
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{
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board_led1_on(led);
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board_led2_on(led);
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}
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/****************************************************************************
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* Name: board_autoled_off
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****************************************************************************/
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void board_autoled_off(int led)
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{
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board_led1_off(led);
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board_led2_off(led);
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}
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#endif /* CONFIG_ARCH_LEDS */
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