101 lines
2.2 KiB
C
101 lines
2.2 KiB
C
#include "transfer.h"
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#if (DT_ENABLE_BROKEN_FRAME_DETECT)
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static uint8_t timeo_frame = 0;
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static struct drv_timer_t timerFrameBroken;
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static void timerFrameBrokenCallback (void *user_data)
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{
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timeo_frame = 1;
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//printf("frame detect clock time up!\r\n");
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}
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#endif
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static uint8_t DT_Port_IsRecvData (struct transfer_t *xfer)
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{
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#if (DT_ENABLE_BROKEN_FRAME_DETECT)
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if (timeo_frame) {
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timeo_frame = 0;
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return BSP_UART_ERR_OK;
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} else if (BSP_UART_IsFrameEnd((BSP_UART_ID)xfer->if_id) == BSP_UART_ERR_OK) {
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drv_timer_linkUserData(&timerFrameBroken, xfer);
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drv_timer_restart(&timerFrameBroken);
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return BSP_UART_ERR_NO_RECV_FRAME;
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}
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return BSP_UART_ERR_NO_RECV_FRAME;
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#else
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return BSP_UART_IsFrameEnd((BSP_UART_ID)xfer->if_id);
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#endif
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}
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void DT_Send (struct transfer_t *xfer, uint8_t *data, uint32_t len)
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{
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BSP_UART_Send((BSP_UART_ID)xfer->if_id, data, len, 0xFFFF);
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}
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/**
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* @brief 检测是否接收到一帧数据的轮询接口
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* @note
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* @param[in] xfer: 传输控制块对象
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* @retval exRESULT
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*/
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exRESULT DT_PollingReceive (struct transfer_t *xfer)
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{
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exRESULT state = X_RESULT_NO_DATA;
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if (DT_Port_IsRecvData(xfer) == 0) {
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state = X_RESULT_RECV_FRAME;
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}
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return state;
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}
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/**
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* @brief 数据传输层初始化
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* @note
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* @param[in] xfer: 传输控制块对象
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* @param[in] if_id: 传输接口 ID
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* @param[in] buff: 用于接收数据的缓冲池，单位 byte
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* @param[in] len: 指示接收到的数据长度，单位 byte
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* @param[in] buff_size: 数据池最大容量，单位 byte
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* @retval None
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*/
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void DT_Init (struct transfer_t *xfer, uint8_t if_id, uint8_t *buff, uint16_t *len, uint32_t buff_size)
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{
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ASSERT(xfer != NULL);
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xfer->if_id = if_id;
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xfer->rx_buff = buff;
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xfer->rx_len = len;
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xfer->rx_buff_size = buff_size;
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BSP_UART_Init((BSP_UART_ID)xfer->if_id);
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BSP_UART_LinkUserData((BSP_UART_ID)xfer->if_id, xfer);
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BSP_UART_EnableReceive( (BSP_UART_ID)xfer->if_id,
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xfer->rx_buff,
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xfer->rx_len,
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xfer->rx_buff_size);
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#if (DT_ENABLE_BROKEN_FRAME_DETECT)
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drv_timer_init(&timerFrameBroken,
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timerFrameBrokenCallback,
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BROKEN_FRAME_INTERVAL_TIME,
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TIMER_RUN_ONE_SHOT);
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#endif
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}
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