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* Copyright (c) 2015 - present LibDriver All rights reserved
*
* The MIT License (MIT)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* @file driver_ir_remote_interface_template.c
* @brief driver ir_remote interface template source file
* @version 1.0.0
* @author Shifeng Li
* @date 2023-03-31
*
* <h3>history</h3>
* <table>
* <tr><th>Date <th>Version <th>Author <th>Description
* <tr><td>2023/03/31 <td>1.0 <td>Shifeng Li <td>first upload
* </table>
*/
#include "driver_ir_remote_interface.h"
#include "main.h"
#include "tim.h"
#include <stdarg.h>
#include <stdio.h>
#define IR_REMOTE_TIM1_PERIOD_US ((uint32_t)(htim1.Init.Period + 1U))
static volatile uint64_t s_tim1_elapsed_us = 0U;
static volatile uint8_t s_tim1_started = 0U;
static uint8_t ir_remote_interface_tim1_start(void)
{
if (s_tim1_started != 0U)
{
return 0U;
}
HAL_TIM_StateTypeDef state = HAL_TIM_Base_GetState(&htim1);
if (state == HAL_TIM_STATE_BUSY)
{
if (HAL_TIM_Base_Stop_IT(&htim1) != HAL_OK)
{
return 1U;
}
state = HAL_TIM_Base_GetState(&htim1);
}
if (state != HAL_TIM_STATE_READY)
{
return 1U;
}
s_tim1_elapsed_us = 0U;
__HAL_TIM_SET_COUNTER(&htim1, 0U);
__HAL_TIM_CLEAR_FLAG(&htim1, TIM_FLAG_UPDATE);
if (HAL_TIM_Base_Start_IT(&htim1) != HAL_OK)
{
return 1U;
}
s_tim1_started = 1U;
return 0U;
}
/**
* @brief interface timer init
* @return status code
* - 0 success
* - 1 init failed
* @note none
*/
uint8_t ir_remote_interface_timer_init(void)
{
s_tim1_started = 0U;
return ir_remote_interface_tim1_start();
}
/**
* @brief interface timestamp read
* @param[in] *t pointer to an ir_remote_time structure
* @return status code
* - 0 success
* - 1 read failed
* @note none
*/
uint8_t ir_remote_interface_timestamp_read(ir_remote_time_t *t)
{
if (t == NULL)
{
return 1;
}
if (ir_remote_interface_tim1_start() != 0U)
{
return 1;
}
uint32_t primask = __get_PRIMASK();
__disable_irq();
uint64_t base_us = s_tim1_elapsed_us;
uint32_t counter = __HAL_TIM_GET_COUNTER(&htim1);
if (__HAL_TIM_GET_FLAG(&htim1, TIM_FLAG_UPDATE) != RESET)
{
base_us += IR_REMOTE_TIM1_PERIOD_US;
counter = __HAL_TIM_GET_COUNTER(&htim1);
}
if (primask == 0U)
{
__enable_irq();
}
uint64_t total_us = base_us + (uint64_t)counter;
t->s = total_us / 1000000ULL;
t->us = (uint32_t)(total_us % 1000000ULL);
return 0;
}
/**
* @brief interface delay ms
* @param[in] ms time
* @note none
*/
void ir_remote_interface_delay_ms(uint32_t ms)
{
HAL_Delay(ms);
}
/**
* @brief interface print format data
* @param[in] fmt format data
* @note none
*/
void ir_remote_interface_debug_print(const char *const fmt, ...)
{
va_list args;
va_start(args, fmt);
(void)vprintf(fmt, args);
va_end(args);
}
/**
* @brief interface receive callback
* @param[in] *data pointer to an ir_remote_t structure
* @note none
*/
void ir_remote_interface_receive_callback(ir_remote_t *data)
{
switch (data->status)
{
case IR_REMOTE_STATUS_OK :
{
ir_remote_interface_debug_print("ir_remote: irq ok.\n");
ir_remote_interface_debug_print("ir_remote: add is 0x%02X and cmd is 0x%02X.\n", data->address, data->command);
break;
}
case IR_REMOTE_STATUS_REPEAT :
{
ir_remote_interface_debug_print("ir_remote: irq repeat.\n");
ir_remote_interface_debug_print("ir_remote: add is 0x%02X and cmd is 0x%02X.\n", data->address, data->command);
break;
}
case IR_REMOTE_STATUS_ADDR_ERR :
{
ir_remote_interface_debug_print("ir_remote: irq addr error.\n");
break;
}
case IR_REMOTE_STATUS_CMD_ERR :
{
ir_remote_interface_debug_print("ir_remote: irq cmd error.\n");
break;
}
case IR_REMOTE_STATUS_FRAME_INVALID :
{
ir_remote_interface_debug_print("ir_remote: irq frame invalid.\n");
break;
}
default :
{
ir_remote_interface_debug_print("ir_remote: irq unknown status.\n");
break;
}
}
}
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
if (htim->Instance == TIM1)
{
s_tim1_elapsed_us += IR_REMOTE_TIM1_PERIOD_US;
}
}
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