353 lines
9.9 KiB
C
353 lines
9.9 KiB
C
/****************************************************************************
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文件名称 : chrg_led.c
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完成日期 :
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当前版本号 : V1.0
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主要功能 : 采用系统软件定时器驱动多路GPIO
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LED灯，实现LED等工作模式初始化，闪烁方式等的功能。
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版本历史 : 创建原始版本
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说明 :
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******************************************************************************/
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#include <rtthread.h>
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#include "chrg_led.h"
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#define LOG_TAG "chrg.led"
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#define DBG_LEVEL DBG_LOG
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#include <rtdbg.h>
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struct chrg_led_t chrgleds[TOTAL_LEDS] = {
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[IDX_LED1] = {
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.index = IDX_LED1,
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.pin_name = PIN_NAME_LED1,
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.pin_base = PIN_LED1,
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.pin_mode = PIN_MODE_OUTPUT,
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.pin_value = PIN_HIGH,
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.tmr_name = TMR_NAME_LED1,
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.tmr_fd = RT_NULL,
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.tmr_stage = PIN_STAGE_IDLE,
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.tmr_millis_on = PULSE_TIME*8,
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.tmr_millis_off = PULSE_TIME*8,
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.tmr_times = 1,
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.tmr_cnt = 0,
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},
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[IDX_LED2] = {
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.index = IDX_LED2,
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.pin_name = PIN_NAME_LED2,
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.pin_base = PIN_LED2,
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.pin_mode = PIN_MODE_OUTPUT,
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.pin_value = PIN_LOW,
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.tmr_name = TMR_NAME_LED2,
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.tmr_fd = RT_NULL,
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.tmr_stage = PIN_STAGE_IDLE,
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.tmr_millis_on = PULSE_TIME*8,
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.tmr_millis_off = PULSE_TIME*8,
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.tmr_times = 1,
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.tmr_cnt = 0,
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},
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[IDX_LED3] = {
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.index = IDX_LED3,
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.pin_name = PIN_NAME_LED3,
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.pin_base = PIN_LED3,
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.pin_mode = PIN_MODE_OUTPUT,
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.pin_value = PIN_LOW,
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.tmr_name = TMR_NAME_LED3,
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.tmr_fd = RT_NULL,
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.tmr_stage = PIN_STAGE_IDLE,
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.tmr_millis_on = PULSE_TIME*8,
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.tmr_millis_off = PULSE_TIME*8,
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.tmr_times = 1,
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.tmr_cnt = 0,
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}
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};
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/*****************************************************************
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函数名称： chrg_led_get
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函数描述： 读取led pin管脚状态值。
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输入参数： index:灯编号
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输出参数： -
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返回说明： <0: 异常，>=0: 状态值
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其它说明： -
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*****************************************************************/
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rt_int32_t chrg_led_get (eIDX_LED index)
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{
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if (index >= TOTAL_LEDS) {
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return -1;
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}
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struct chrg_led_t *pLED = &chrgleds[index];
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pLED->pin_value = rt_pin_read(pLED->pin_base);
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return pLED->pin_value;
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}
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/*****************************************************************
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函数名称： chrg_led_set
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函数描述： 设置led pin管脚状态值。
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输入参数： *pLED: led pin定时器信息 value: 值
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输出参数： -
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返回说明： <0: 异常，=0: 正常操作
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其它说明： -
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*****************************************************************/
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rt_int32_t chrg_led_set (struct chrg_led_t *pLED, rt_uint8_t value)
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{
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pLED->pin_value = value;
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rt_pin_write(pLED->pin_base, pLED->pin_value);
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return 0;
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}
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/*****************************************************************
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函数名称： chrg_led_toggle
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函数描述： led pin管脚翻转。
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输入参数： index:灯编号
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输出参数： -
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返回说明： <0: 异常，=0: 正常操作
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其它说明： -
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*****************************************************************/
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rt_int32_t chrg_led_toggle (eIDX_LED index)
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{
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if (index >= TOTAL_LEDS) {
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return -1;
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}
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struct chrg_led_t *pLED = &chrgleds[index];
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pLED->pin_value = !pLED->pin_value;
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rt_pin_write(pLED->pin_base, pLED->pin_value);
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return 0;
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}
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/*****************************************************************
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函数名称： chrg_led_timer_set_on
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函数描述： 设定状态高的延时。
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输入参数： *pLED: led pin定时器信息
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输出参数： -
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返回说明： <0: 异常，=0: 正常操作
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其它说明： -
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*****************************************************************/
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static rt_int32_t chrg_led_timer_set_on (struct chrg_led_t *pLED)
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{
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return rt_timer_control(pLED->tmr_fd, RT_TIMER_CTRL_SET_TIME, (void *)&pLED->tmr_millis_on);
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}
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/*****************************************************************
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函数名称： chrg_led_timer_set_off
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函数描述： 设定状态低的延时。
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输入参数： *pLED: led pin定时器信息
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输出参数： -
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返回说明： <0: 异常，=0: 正常操作
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其它说明： -
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*****************************************************************/
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static rt_int32_t chrg_led_timer_set_off (struct chrg_led_t *pLED)
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{
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return rt_timer_control(pLED->tmr_fd, RT_TIMER_CTRL_SET_TIME, (void *)&pLED->tmr_millis_off);
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}
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/*****************************************************************
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函数名称： chrg_led_pulsing
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函数描述： led pin定时器执行管脚状态设置。
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输入参数： *pLED: led pin定时器信息, state: 流转状态
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输出参数： -
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返回说明： <0: 异常，=0: 正常操作
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其它说明： -
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*****************************************************************/
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rt_int32_t chrg_led_pulsing (struct chrg_led_t *pLED, rt_uint8_t state)
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{
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rt_int32_t ret = 0;
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if (state == PULSE_OFF) {
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pLED->tmr_stage = PIN_STAGE_IDLE;
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chrg_led_set(pLED, PIN_HIGH);
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} else {
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if (pLED->tmr_millis_on == HOLD_ZERO) { // 常低
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pLED->tmr_stage = PIN_STAGE_IDLE;
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rt_timer_stop(pLED->tmr_fd);
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chrg_led_set(pLED, PIN_HIGH);
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} else if (pLED->tmr_millis_off == HOLD_ZERO) { // 常高
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pLED->tmr_stage = PIN_STAGE_IDLE;
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chrg_led_set(pLED, PIN_LOW);
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} else { // 交替
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if (pLED->tmr_stage == PIN_STAGE_IDLE) {
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pLED->tmr_stage = PIN_STAGE_ON;
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chrg_led_set(pLED, PIN_LOW);
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chrg_led_timer_set_on(pLED);
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ret = rt_timer_start(pLED->tmr_fd);
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}
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}
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}
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return ret;
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}
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/*****************************************************************
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函数名称： chrg_led_timer_timeout_callback
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函数描述： led pin定时器回调操作。
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输入参数： *parameter：led pin定时器信息。
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输出参数： -
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返回说明： -
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其它说明： -
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*****************************************************************/
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static void chrg_led_timer_timeout_callback (void* parameter)
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{
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struct chrg_led_t *pLED = (struct chrg_led_t *)parameter;
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if (pLED->tmr_stage == PIN_STAGE_ON) {
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pLED->tmr_stage = PIN_STAGE_OFF;
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chrg_led_set(pLED, PIN_HIGH);
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chrg_led_timer_set_off(pLED);
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rt_timer_start(pLED->tmr_fd);
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} else if (pLED->tmr_stage == PIN_STAGE_OFF) {
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pLED->tmr_stage = PIN_STAGE_IDLE;
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if ((pLED->tmr_times == TIMES_ALWAYS)&&(pLED->tmr_millis_off != HOLD_ZERO)) { // 保持闪烁
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pLED->tmr_stage = PIN_STAGE_ON;
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chrg_led_set(pLED, PIN_LOW);
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chrg_led_timer_set_on(pLED);
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rt_timer_start(pLED->tmr_fd);
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} else { // 计数闪烁
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if (++pLED->tmr_cnt >= pLED->tmr_times) {
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pLED->tmr_cnt = 0;
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rt_timer_stop(pLED->tmr_fd);
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} else {
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pLED->tmr_stage = PIN_STAGE_ON;
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chrg_led_set(pLED, PIN_LOW);
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chrg_led_timer_set_on(pLED);
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rt_timer_start(pLED->tmr_fd);
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}
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}
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}
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}
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/*****************************************************************
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函数名称： chrg_led_timer_start
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函数描述： 启动led pin定时器。
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输入参数： index:灯编号
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输出参数： -
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返回说明： <0: 异常，=0: 正常操作
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其它说明： -
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*****************************************************************/
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static rt_int32_t chrg_led_timer_start (eIDX_LED index)
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{
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if (index >= TOTAL_LEDS) {
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return -1;
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}
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struct chrg_led_t *pLED = RT_NULL;
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pLED = &chrgleds[index];
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pLED->tmr_fd = rt_timer_create(pLED->tmr_name, chrg_led_timer_timeout_callback,
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pLED, pLED->tmr_millis_on, RT_TIMER_FLAG_ONE_SHOT);
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if (pLED->tmr_fd == RT_NULL) {
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LOG_E("tmr create '%s' failed.", pLED->tmr_name);
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return -1;
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}
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return 0;
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}
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/*****************************************************************
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函数名称： chrg_led_timer_delete
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函数描述： 删除led pin定时器。
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输入参数： index:灯编号
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输出参数： -
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返回说明： <0: 异常，=0: 正常操作
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其它说明： -
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*****************************************************************/
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rt_int32_t chrg_led_timer_delete (eIDX_LED index)
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{
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if (index >= TOTAL_LEDS) {
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return -1;
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}
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return rt_timer_delete(chrgleds[index].tmr_fd);
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}
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/*****************************************************************
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函数名称： chrg_led_show
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函数描述： 控制指定灯的工作模式。
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输入参数： index:灯编号， times:单次/循环， on:亮延时 off:灭延时
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输出参数： -
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返回说明： <0: 异常，=0: 正常操作
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其它说明： -
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*****************************************************************/
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static rt_int32_t chrg_led_show (struct chrg_led_t *pLED, rt_uint32_t times, rt_uint32_t on, rt_uint32_t off)
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{
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rt_int32_t ret = 0;
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pLED->tmr_millis_on = on;
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pLED->tmr_millis_off = off;
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pLED->tmr_times = times;
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pLED->tmr_cnt = 0;
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if (pLED->tmr_millis_on == HOLD_ZERO) {
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ret = chrg_led_pulsing(pLED, PULSE_OFF);
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} else {
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ret = chrg_led_pulsing(pLED, PULSE_ON);
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}
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return ret;
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}
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/*****************************************************************
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函数名称： chrg_led_flashing
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函数描述： 控制指定灯的工作模式。
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输入参数： index:灯编号， times:单次/循环， on:亮延时 off:灭延时
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输出参数： -
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返回说明： <0: 异常，=0: 正常操作
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其它说明： -
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*****************************************************************/
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rt_int32_t chrg_led_flashing (eIDX_LED index, rt_uint32_t times, rt_uint32_t on, rt_uint32_t off)
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{
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rt_int32_t ret = -1;
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struct chrg_led_t *pLED = NULL;
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if (index < TOTAL_LEDS) {
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pLED = &chrgleds[index];
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ret = chrg_led_show(pLED, times, on, off);
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}
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return ret;
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}
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/*****************************************************************
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函数名称： chrg_leds_init
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函数描述： 启动多个软件定时，用于管理LED灯工作模式。
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输入参数： -
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输出参数： -
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返回说明： <0: 异常，=0: 正常操作
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其它说明： -
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*****************************************************************/
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static int chrg_leds_init (void)
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{
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rt_uint8_t i = 0;
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struct chrg_led_t *pLED = RT_NULL;
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for (i = 0; i < TOTAL_LEDS; i++) {
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pLED = &chrgleds[i];
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rt_pin_mode(pLED->pin_base, pLED->pin_mode);
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if (pLED->pin_mode == PIN_MODE_OUTPUT) {
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pLED->pin_value = PIN_HIGH;
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rt_pin_write(pLED->pin_base, pLED->pin_value);
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}
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chrg_led_timer_start((eIDX_LED)i);
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}
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chrg_led_flashing(IDX_LED1, TIMES_ALWAYS, PULSE_TIME*8, PULSE_TIME*8);
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return 0;
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}
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INIT_ENV_EXPORT(chrg_leds_init);
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