172 lines
4.6 KiB
C
172 lines
4.6 KiB
C
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/******************************************************************//**
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* @file dev_led.c
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* @brief LED driver of RT-Thread RTOS for EFM32
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* COPYRIGHT (C) 2009, RT-Thread Development Team
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* @author Bernard, onelife
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* @version 0.4 beta
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**********************************************************************
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* @section License
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* The license and distribution terms for this file may be found in the file LICENSE in this
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* distribution or at http://www.rt-thread.org/license/LICENSE
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**********************************************************************
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* @section Change Logs
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* Date Author Notes
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* 2009-01-05 Bernard the first version
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* 2010-12-27 onelife modify for EFM32
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*********************************************************************/
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/******************************************************************//**
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* @addtogroup efm32
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* @{
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*********************************************************************/
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/* Includes -------------------------------------------------------------------*/
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#include "board.h"
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#include "dev_led.h"
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/* Private typedef -------------------------------------------------------------*/
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/* Private define --------------------------------------------------------------*/
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/* Private macro --------------------------------------------------------------*/
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/* Private constants -----------------------------------------------------------*/
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static const rt_uint8_t leds_list[LEDS_MAX_NUMBER][2] = \
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{
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{LEDS_PIN_PORT_0, LEDS_PIN_NUMBER_0},
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{LEDS_PIN_PORT_1, LEDS_PIN_NUMBER_1},
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{LEDS_PIN_PORT_2, LEDS_PIN_NUMBER_2},
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{LEDS_PIN_PORT_3, LEDS_PIN_NUMBER_3}
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};
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/* Private variables ------------------------------------------------------------*/
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/* Private function prototypes ---------------------------------------------------*/
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/* Private functions ------------------------------------------------------------*/
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/******************************************************************//**
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* @brief
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* Turn on a LED
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*
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* @details
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*
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* @note
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*
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* @param[in] num
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* LED number
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*
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*********************************************************************/
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void rt_hw_led_on(rt_uint8_t num)
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{
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RT_ASSERT(num < LEDS_MAX_NUMBER);
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GPIO_PinOutSet(leds_list[num][0], leds_list[num][1]);
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}
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/******************************************************************//**
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* @brief
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* Turn off a LED
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*
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* @details
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*
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* @note
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*
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* @param[in] num
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* LED number
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*
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*********************************************************************/
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void rt_hw_led_off(rt_uint8_t num)
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{
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RT_ASSERT(num < LEDS_MAX_NUMBER);
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GPIO_PinOutClear(leds_list[num][0], leds_list[num][1]);
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}
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/******************************************************************//**
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* @brief
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* Toggle the state of a LED
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*
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* @details
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*
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* @note
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*
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* @param[in] num
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* LED number
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*
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*********************************************************************/
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void rt_hw_led_toggle(rt_uint8_t num)
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{
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RT_ASSERT(num < LEDS_MAX_NUMBER);
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GPIO_PinOutToggle(leds_list[num][0], leds_list[num][1]);
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}
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rt_uint8_t rt_hw_led_state(rt_uint8_t num)
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{
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RT_ASSERT(num < LEDS_MAX_NUMBER);
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return (rt_uint8_t)GPIO_PinInGet(leds_list[num][0], leds_list[num][1]);
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}
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/******************************************************************//**
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* @brief
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* Initialize the LEDs related GPIO
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*
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* @details
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*
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* @note
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*
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*********************************************************************/
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void rt_hw_led_init(void)
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{
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rt_uint8_t i;
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/* Configure GPIO */
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for (i = 0; i < LEDS_MAX_NUMBER; i++)
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{
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GPIO_PinModeSet(
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leds_list[i][0],
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leds_list[i][1],
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gpioModePushPull,
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0);
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}
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}
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/*********************************************************************
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* Export to FINSH
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*********************************************************************/
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#ifdef RT_USING_FINSH
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#include <finsh.h>
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void list_leds(void)
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{
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rt_uint8_t i;
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rt_kprintf(" led \t port \t pin \t state\n");
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rt_kprintf(" -----\t -----\t -----\t -----\n");
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for (i = 0; i < LEDS_MAX_NUMBER; i++)
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{
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rt_kprintf(" %d \t %x \t %x \t %x \n",
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i, leds_list[i][0], leds_list[i][1], rt_hw_led_state(i));
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}
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}
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FINSH_FUNCTION_EXPORT(list_leds, list all the LEDs.)
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void set_led(rt_uint32_t led, rt_uint32_t state)
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{
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/* set led status */
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switch (state)
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{
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case 0:
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rt_hw_led_off(led);
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break;
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case 1:
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rt_hw_led_on(led);
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break;
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default:
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break;
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}
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}
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FINSH_FUNCTION_EXPORT(set_led, turn led (0 - 3) on (1) or off (0).)
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#endif
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/******************************************************************//**
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* @}
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*********************************************************************/
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