168 lines
4.8 KiB
C
168 lines
4.8 KiB
C
#include "mw_ir_controller.h"
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#include "bsp_usart.h"
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#include "string.h"
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#include "public_diy.h"
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#define IR_CONTROLLER_FRAME_HEAD_1 (0x00)
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#define IR_CONTROLLER_FRAME_HEAD_2 (0xFF)
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#define IR_CONTROLLER_FRAME_UP (0x18) // ↑
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#define IR_CONTROLLER_FRAME_DOWN (0x52) // ↓
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#define IR_CONTROLLER_FRAME_LEFT (0x08) // ←
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#define IR_CONTROLLER_FRAME_RIGHT (0x5A) // →
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#define IR_CONTROLLER_FRAME_OK (0x1C) // OK
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#define IR_DECODE_QUEUE_LEN (20u)
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typedef struct
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{
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uint8_t read;
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uint8_t write;
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uint8_t count;
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IR_DECODE_ENUM ir_decode_queue[IR_DECODE_QUEUE_LEN];
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}IR_DECODE_STR;
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static IR_DECODE_STR str_ir_decode;
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/*************************************************************************************
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* @brief 解码
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* @param[in/out] val 【参数注释】
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* @return IR_DECODE_ENUM【返回值注释】
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*
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* @warning 【不可重入,阻塞等警告】
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* @note 【重大修改】
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*************************************************************************************/
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IR_DECODE_ENUM mw_IrController_decode(uint8_t val)
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{
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IR_DECODE_ENUM e_retVal;
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switch(val)
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{
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case IR_CONTROLLER_FRAME_UP:
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e_retVal = ir_decode_up;
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break;
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case IR_CONTROLLER_FRAME_DOWN:
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e_retVal = ir_decode_down;
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break;
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case IR_CONTROLLER_FRAME_LEFT:
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e_retVal = ir_decode_left;
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break;
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case IR_CONTROLLER_FRAME_RIGHT:
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e_retVal = ir_decode_right;
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break;
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case IR_CONTROLLER_FRAME_OK:
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e_retVal = ir_decode_ok;
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break;
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default:
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e_retVal = ir_decode_NUM;
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break;
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}
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return e_retVal;
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}
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/*************************************************************************************
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* @brief 红外模块 中间件 初始化
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*
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* @warning 【不可重入,阻塞等警告】
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* @note 【重大修改】
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*************************************************************************************/
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void mw_InitIrController(void)
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{
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memset((uint8_t *)&str_ir_decode, 0x00, sizeof(str_ir_decode));
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}
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uint8_t mw_GetIrControllerChar(IR_DECODE_ENUM * eptr_val)
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{
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if(str_ir_decode.count > 0)
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{
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// 取值
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* eptr_val = str_ir_decode.ir_decode_queue[str_ir_decode.read];
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// 更新
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if(++str_ir_decode.read >= IR_DECODE_QUEUE_LEN)
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{
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str_ir_decode.read = 0;
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}
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str_ir_decode.count--;
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return RET_OK;
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}
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else
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{
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return RET_ERROR;
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}
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}
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/*************************************************************************************
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* @brief 红外模块接收函数
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*
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* @warning 【不可重入,阻塞等警告】
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* @note 【重大修改】
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*************************************************************************************/
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void mw_IrReceiveProcess(void)
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{
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static uint8_t tmp_recv_state = 0;
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uint8_t recv_val;
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IR_DECODE_ENUM e_recv_ir_decode;
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switch(tmp_recv_state)
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{
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// Idle
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case 0:
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if(bsp_usart_IsComRecvChar(COM_IR_CONTROLLER) > 0)
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{
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tmp_recv_state = 1;
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}
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break;
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// 接收第一个字符 若帧头1 对了则进入下一阶段，否则回到最初的阶段
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case 1:
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if(bsp_usart_GetComChar(COM_IR_CONTROLLER, &recv_val) == RET_OK)
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{
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if(recv_val == IR_CONTROLLER_FRAME_HEAD_1)
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{
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tmp_recv_state = 2;
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}
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else
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{
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tmp_recv_state = 0;
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}
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}
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break;
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case 2:
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// 接收第二个字符 若帧头2 对了则进入下一阶段，否则回到最初的阶段
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if(bsp_usart_GetComChar(COM_IR_CONTROLLER, &recv_val) == RET_OK)
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{
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if(recv_val == IR_CONTROLLER_FRAME_HEAD_2)
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{
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tmp_recv_state = 3;
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}
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else
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{
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tmp_recv_state = 0;
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}
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}
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break;
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case 3:
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// 判断用户码，修改遥控器状态
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if(bsp_usart_GetComChar(COM_IR_CONTROLLER, &recv_val) == RET_OK)
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{
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// 转化为解码后的数据
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e_recv_ir_decode = mw_IrController_decode(recv_val);
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// 存进队列并更新
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str_ir_decode.ir_decode_queue[str_ir_decode.write] = e_recv_ir_decode;
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++str_ir_decode.count;
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if(++str_ir_decode.write >= IR_DECODE_QUEUE_LEN)
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{
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str_ir_decode.write = 0;
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}
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// 回到最初的阶段
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tmp_recv_state = 0;
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}
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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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