[Serial] BUG Fix: data be send twice in mode that other than polling
This commit is contained in:
heyuanjie87
parent
7bd85ac547
commit
8a44c7dbfb
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@ -37,48 +37,48 @@
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*/
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rt_inline int _serial_poll_rx(struct rt_serial_device *serial, rt_uint8_t *data, int length)
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{
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int ch;
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int size;
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int ch;
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int size;
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RT_ASSERT(serial != RT_NULL);
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size = length;
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RT_ASSERT(serial != RT_NULL);
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size = length;
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while (length)
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{
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ch = serial->ops->getc(serial);
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*data = ch;
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data ++; length --;
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while (length)
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{
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ch = serial->ops->getc(serial);
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*data = ch;
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data ++; length --;
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if (ch == '\n') break;
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}
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if (ch == '\n') break;
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}
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return size - length;
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return size - length;
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}
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rt_inline int _serial_poll_tx(struct rt_serial_device *serial, const rt_uint8_t *data, int length)
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{
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int size;
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RT_ASSERT(serial != RT_NULL);
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int size;
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RT_ASSERT(serial != RT_NULL);
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size = length;
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while (length)
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{
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/*
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* to be polite with serial console add a line feed
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* to the carriage return character
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*/
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if (*data == '\n' && (serial->parent.flag & RT_DEVICE_FLAG_STREAM))
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{
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serial->ops->putc(serial, '\r');
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}
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size = length;
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while (length)
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{
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/*
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* to be polite with serial console add a line feed
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* to the carriage return character
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*/
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if (*data == '\n' && (serial->parent.flag & RT_DEVICE_FLAG_STREAM))
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{
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serial->ops->putc(serial, '\r');
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}
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serial->ops->putc(serial, *data);
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serial->ops->putc(serial, *data);
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++ data;
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-- length;
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}
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++ data;
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-- length;
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}
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return size - length;
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return size - length;
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}
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/*
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@ -86,69 +86,69 @@ rt_inline int _serial_poll_tx(struct rt_serial_device *serial, const rt_uint8_t
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*/
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rt_inline int _serial_int_rx(struct rt_serial_device *serial, rt_uint8_t *data, int length)
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{
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int size;
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struct rt_serial_rx_fifo* rx_fifo;
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int size;
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struct rt_serial_rx_fifo* rx_fifo;
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RT_ASSERT(serial != RT_NULL);
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size = length;
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RT_ASSERT(serial != RT_NULL);
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size = length;
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rx_fifo = (struct rt_serial_rx_fifo*) serial->serial_rx;
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RT_ASSERT(rx_fifo != RT_NULL);
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rx_fifo = (struct rt_serial_rx_fifo*) serial->serial_rx;
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RT_ASSERT(rx_fifo != RT_NULL);
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/* read from software FIFO */
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while (length)
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{
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int ch;
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rt_base_t level;
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/* read from software FIFO */
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while (length)
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{
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int ch;
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rt_base_t level;
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/* disable interrupt */
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level = rt_hw_interrupt_disable();
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if (rx_fifo->get_index != rx_fifo->put_index)
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{
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ch = rx_fifo->buffer[rx_fifo->get_index];
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rx_fifo->get_index += 1;
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if (rx_fifo->get_index >= serial->config.bufsz) rx_fifo->get_index = 0;
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}
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else
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{
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/* no data, enable interrupt and break out */
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rt_hw_interrupt_enable(level);
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break;
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}
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/* disable interrupt */
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level = rt_hw_interrupt_disable();
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if (rx_fifo->get_index != rx_fifo->put_index)
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{
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ch = rx_fifo->buffer[rx_fifo->get_index];
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rx_fifo->get_index += 1;
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if (rx_fifo->get_index >= serial->config.bufsz) rx_fifo->get_index = 0;
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}
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else
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{
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/* no data, enable interrupt and break out */
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rt_hw_interrupt_enable(level);
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break;
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}
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/* enable interrupt */
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rt_hw_interrupt_enable(level);
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/* enable interrupt */
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rt_hw_interrupt_enable(level);
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*data = ch & 0xff;
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data ++; length --;
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}
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*data = ch & 0xff;
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data ++; length --;
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}
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return size - length;
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return size - length;
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}
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rt_inline int _serial_int_tx(struct rt_serial_device *serial, const rt_uint8_t *data, int length)
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{
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int size;
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struct rt_serial_tx_fifo *tx;
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int size;
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struct rt_serial_tx_fifo *tx;
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RT_ASSERT(serial != RT_NULL);
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RT_ASSERT(serial != RT_NULL);
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size = length;
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tx = (struct rt_serial_tx_fifo*) serial->serial_tx;
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RT_ASSERT(tx != RT_NULL);
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size = length;
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tx = (struct rt_serial_tx_fifo*) serial->serial_tx;
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RT_ASSERT(tx != RT_NULL);
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while (length)
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{
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if (serial->ops->putc(serial, *(char*)data) == -1)
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{
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rt_completion_wait(&(tx->completion), RT_WAITING_FOREVER);
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continue;
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}
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while (length)
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{
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if (serial->ops->putc(serial, *(char*)data) == -1)
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{
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rt_completion_wait(&(tx->completion), RT_WAITING_FOREVER);
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continue;
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}
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data ++; length --;
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}
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data ++; length --;
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}
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return size - length;
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return size - length;
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}
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/*
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@ -156,61 +156,61 @@ rt_inline int _serial_int_tx(struct rt_serial_device *serial, const rt_uint8_t *
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*/
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rt_inline int _serial_dma_rx(struct rt_serial_device *serial, rt_uint8_t *data, int length)
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{
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rt_base_t level;
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int result = RT_EOK;
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struct rt_serial_rx_dma *rx_dma;
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rt_base_t level;
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int result = RT_EOK;
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struct rt_serial_rx_dma *rx_dma;
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RT_ASSERT((serial != RT_NULL) && (data != RT_NULL));
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rx_dma = (struct rt_serial_rx_dma*)serial->serial_rx;
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RT_ASSERT(rx_dma != RT_NULL);
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RT_ASSERT((serial != RT_NULL) && (data != RT_NULL));
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rx_dma = (struct rt_serial_rx_dma*)serial->serial_rx;
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RT_ASSERT(rx_dma != RT_NULL);
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level = rt_hw_interrupt_disable();
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if (rx_dma->activated != RT_TRUE)
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{
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rx_dma->activated = RT_TRUE;
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serial->ops->dma_transmit(serial, data, length, RT_SERIAL_DMA_RX);
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}
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else result = -RT_EBUSY;
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rt_hw_interrupt_enable(level);
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level = rt_hw_interrupt_disable();
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if (rx_dma->activated != RT_TRUE)
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{
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rx_dma->activated = RT_TRUE;
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serial->ops->dma_transmit(serial, data, length, RT_SERIAL_DMA_RX);
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}
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else result = -RT_EBUSY;
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rt_hw_interrupt_enable(level);
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if (result == RT_EOK) return length;
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if (result == RT_EOK) return length;
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rt_set_errno(result);
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return 0;
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rt_set_errno(result);
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return 0;
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}
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rt_inline int _serial_dma_tx(struct rt_serial_device *serial, const rt_uint8_t *data, int length)
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{
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rt_base_t level;
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rt_err_t result;
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struct rt_serial_tx_dma *tx_dma;
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rt_base_t level;
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rt_err_t result;
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struct rt_serial_tx_dma *tx_dma;
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tx_dma = (struct rt_serial_tx_dma*)(serial->serial_tx);
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tx_dma = (struct rt_serial_tx_dma*)(serial->serial_tx);
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result = rt_data_queue_push(&(tx_dma->data_queue), data, length, RT_WAITING_FOREVER);
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if (result == RT_EOK)
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{
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level = rt_hw_interrupt_disable();
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if (tx_dma->activated != RT_TRUE)
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{
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tx_dma->activated = RT_TRUE;
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rt_hw_interrupt_enable(level);
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result = rt_data_queue_push(&(tx_dma->data_queue), data, length, RT_WAITING_FOREVER);
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if (result == RT_EOK)
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{
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level = rt_hw_interrupt_disable();
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if (tx_dma->activated != RT_TRUE)
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{
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tx_dma->activated = RT_TRUE;
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rt_hw_interrupt_enable(level);
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/* make a DMA transfer */
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serial->ops->dma_transmit(serial, data, length, RT_SERIAL_DMA_TX);
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}
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else
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{
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rt_hw_interrupt_enable(level);
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}
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/* make a DMA transfer */
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serial->ops->dma_transmit(serial, data, length, RT_SERIAL_DMA_TX);
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}
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else
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{
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rt_hw_interrupt_enable(level);
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}
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return length;
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}
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else
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{
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rt_set_errno(result);
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return 0;
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}
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return length;
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}
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else
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{
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rt_set_errno(result);
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return 0;
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}
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}
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/* RT-Thread Device Interface */
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@ -225,15 +225,15 @@ static rt_err_t rt_serial_init(struct rt_device *dev)
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RT_ASSERT(dev != RT_NULL);
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serial = (struct rt_serial_device *)dev;
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/* initialize rx/tx */
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serial->serial_rx = RT_NULL;
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serial->serial_tx = RT_NULL;
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/* initialize rx/tx */
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serial->serial_rx = RT_NULL;
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serial->serial_tx = RT_NULL;
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/* apply configuration */
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if (serial->ops->configure)
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result = serial->ops->configure(serial, &serial->config);
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/* apply configuration */
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if (serial->ops->configure)
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result = serial->ops->configure(serial, &serial->config);
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return result;
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return result;
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}
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static rt_err_t rt_serial_open(struct rt_device *dev, rt_uint16_t oflag)
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@ -243,89 +243,89 @@ static rt_err_t rt_serial_open(struct rt_device *dev, rt_uint16_t oflag)
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RT_ASSERT(dev != RT_NULL);
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serial = (struct rt_serial_device *)dev;
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/* check device flag with the open flag */
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if ((oflag & RT_DEVICE_FLAG_DMA_RX) && !(dev->flag & RT_DEVICE_FLAG_DMA_RX))
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return -RT_EIO;
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if ((oflag & RT_DEVICE_FLAG_DMA_TX) && !(dev->flag & RT_DEVICE_FLAG_DMA_TX))
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return -RT_EIO;
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if ((oflag & RT_DEVICE_FLAG_INT_RX) && !(dev->flag & RT_DEVICE_FLAG_INT_RX))
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return -RT_EIO;
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if ((oflag & RT_DEVICE_FLAG_INT_TX) && !(dev->flag & RT_DEVICE_FLAG_INT_TX))
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return -RT_EIO;
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/* check device flag with the open flag */
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if ((oflag & RT_DEVICE_FLAG_DMA_RX) && !(dev->flag & RT_DEVICE_FLAG_DMA_RX))
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return -RT_EIO;
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if ((oflag & RT_DEVICE_FLAG_DMA_TX) && !(dev->flag & RT_DEVICE_FLAG_DMA_TX))
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return -RT_EIO;
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if ((oflag & RT_DEVICE_FLAG_INT_RX) && !(dev->flag & RT_DEVICE_FLAG_INT_RX))
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return -RT_EIO;
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if ((oflag & RT_DEVICE_FLAG_INT_TX) && !(dev->flag & RT_DEVICE_FLAG_INT_TX))
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return -RT_EIO;
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/* get open flags */
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dev->open_flag = oflag & 0xff;
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/* get open flags */
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dev->open_flag = oflag & 0xff;
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/* initialize the Rx/Tx structure according to open flag */
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if (serial->serial_rx == RT_NULL)
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{
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if (oflag & RT_DEVICE_FLAG_DMA_RX)
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{
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struct rt_serial_rx_dma* rx_dma;
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/* initialize the Rx/Tx structure according to open flag */
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if (serial->serial_rx == RT_NULL)
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{
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if (oflag & RT_DEVICE_FLAG_DMA_RX)
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{
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struct rt_serial_rx_dma* rx_dma;
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rx_dma = (struct rt_serial_rx_dma*) rt_malloc (sizeof(struct rt_serial_rx_dma));
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RT_ASSERT(rx_dma != RT_NULL);
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rx_dma->activated = RT_FALSE;
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rx_dma = (struct rt_serial_rx_dma*) rt_malloc (sizeof(struct rt_serial_rx_dma));
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RT_ASSERT(rx_dma != RT_NULL);
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rx_dma->activated = RT_FALSE;
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serial->serial_rx = rx_dma;
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dev->open_flag |= RT_DEVICE_FLAG_DMA_RX;
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}
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else if (oflag & RT_DEVICE_FLAG_INT_RX)
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{
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struct rt_serial_rx_fifo* rx_fifo;
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serial->serial_rx = rx_dma;
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dev->open_flag |= RT_DEVICE_FLAG_DMA_RX;
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}
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else if (oflag & RT_DEVICE_FLAG_INT_RX)
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{
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struct rt_serial_rx_fifo* rx_fifo;
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rx_fifo = (struct rt_serial_rx_fifo*) rt_malloc (sizeof(struct rt_serial_rx_fifo) +
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serial->config.bufsz);
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RT_ASSERT(rx_fifo != RT_NULL);
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rx_fifo->buffer = (rt_uint8_t*) (rx_fifo + 1);
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rt_memset(rx_fifo->buffer, 0, RT_SERIAL_RB_BUFSZ);
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rx_fifo->put_index = 0;
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rx_fifo->get_index = 0;
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rx_fifo = (struct rt_serial_rx_fifo*) rt_malloc (sizeof(struct rt_serial_rx_fifo) +
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serial->config.bufsz);
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RT_ASSERT(rx_fifo != RT_NULL);
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rx_fifo->buffer = (rt_uint8_t*) (rx_fifo + 1);
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rt_memset(rx_fifo->buffer, 0, RT_SERIAL_RB_BUFSZ);
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rx_fifo->put_index = 0;
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rx_fifo->get_index = 0;
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serial->serial_rx = rx_fifo;
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dev->open_flag |= RT_DEVICE_FLAG_INT_RX;
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/* configure low level device */
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serial->ops->control(serial, RT_DEVICE_CTRL_SET_INT, (void *)RT_DEVICE_FLAG_INT_RX);
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}
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else
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{
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serial->serial_rx = RT_NULL;
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}
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}
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serial->serial_rx = rx_fifo;
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dev->open_flag |= RT_DEVICE_FLAG_INT_RX;
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/* configure low level device */
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serial->ops->control(serial, RT_DEVICE_CTRL_SET_INT, (void *)RT_DEVICE_FLAG_INT_RX);
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}
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else
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{
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serial->serial_rx = RT_NULL;
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}
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}
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if (serial->serial_tx == RT_NULL)
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{
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if (oflag & RT_DEVICE_FLAG_DMA_TX)
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{
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struct rt_serial_tx_dma* tx_dma;
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if (serial->serial_tx == RT_NULL)
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{
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if (oflag & RT_DEVICE_FLAG_DMA_TX)
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{
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struct rt_serial_tx_dma* tx_dma;
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tx_dma = (struct rt_serial_tx_dma*) rt_malloc (sizeof(struct rt_serial_tx_dma));
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RT_ASSERT(tx_dma != RT_NULL);
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tx_dma = (struct rt_serial_tx_dma*) rt_malloc (sizeof(struct rt_serial_tx_dma));
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RT_ASSERT(tx_dma != RT_NULL);
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rt_data_queue_init(&(tx_dma->data_queue), 8, 4, RT_NULL);
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serial->serial_tx = tx_dma;
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rt_data_queue_init(&(tx_dma->data_queue), 8, 4, RT_NULL);
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serial->serial_tx = tx_dma;
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dev->open_flag |= RT_DEVICE_FLAG_DMA_TX;
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}
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else if (oflag & RT_DEVICE_FLAG_INT_TX)
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{
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struct rt_serial_tx_fifo *tx_fifo;
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dev->open_flag |= RT_DEVICE_FLAG_DMA_TX;
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}
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else if (oflag & RT_DEVICE_FLAG_INT_TX)
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{
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struct rt_serial_tx_fifo *tx_fifo;
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tx_fifo = (struct rt_serial_tx_fifo*) rt_malloc(sizeof(struct rt_serial_tx_fifo));
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RT_ASSERT(tx_fifo != RT_NULL);
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tx_fifo = (struct rt_serial_tx_fifo*) rt_malloc(sizeof(struct rt_serial_tx_fifo));
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RT_ASSERT(tx_fifo != RT_NULL);
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rt_completion_init(&(tx_fifo->completion));
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serial->serial_tx = tx_fifo;
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rt_completion_init(&(tx_fifo->completion));
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serial->serial_tx = tx_fifo;
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dev->open_flag |= RT_DEVICE_FLAG_INT_TX;
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/* configure low level device */
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serial->ops->control(serial, RT_DEVICE_CTRL_SET_INT, (void *)RT_DEVICE_FLAG_INT_TX);
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}
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else
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{
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||||
serial->serial_tx = RT_NULL;
|
||||
}
|
||||
}
|
||||
dev->open_flag |= RT_DEVICE_FLAG_INT_TX;
|
||||
/* configure low level device */
|
||||
serial->ops->control(serial, RT_DEVICE_CTRL_SET_INT, (void *)RT_DEVICE_FLAG_INT_TX);
|
||||
}
|
||||
else
|
||||
{
|
||||
serial->serial_tx = RT_NULL;
|
||||
}
|
||||
}
|
||||
|
||||
return RT_EOK;
|
||||
}
|
||||
|
|
@ -337,58 +337,58 @@ static rt_err_t rt_serial_close(struct rt_device *dev)
|
|||
RT_ASSERT(dev != RT_NULL);
|
||||
serial = (struct rt_serial_device *)dev;
|
||||
|
||||
/* this device has more reference count */
|
||||
if (dev->ref_count > 1) return RT_EOK;
|
||||
/* this device has more reference count */
|
||||
if (dev->ref_count > 1) return RT_EOK;
|
||||
|
||||
if (dev->open_flag & RT_DEVICE_FLAG_INT_RX)
|
||||
{
|
||||
struct rt_serial_rx_fifo* rx_fifo;
|
||||
if (dev->open_flag & RT_DEVICE_FLAG_INT_RX)
|
||||
{
|
||||
struct rt_serial_rx_fifo* rx_fifo;
|
||||
|
||||
rx_fifo = (struct rt_serial_rx_fifo*)serial->serial_rx;
|
||||
RT_ASSERT(rx_fifo != RT_NULL);
|
||||
rx_fifo = (struct rt_serial_rx_fifo*)serial->serial_rx;
|
||||
RT_ASSERT(rx_fifo != RT_NULL);
|
||||
|
||||
rt_free(rx_fifo);
|
||||
serial->serial_rx = RT_NULL;
|
||||
dev->open_flag &= ~RT_DEVICE_FLAG_INT_RX;
|
||||
/* configure low level device */
|
||||
serial->ops->control(serial, RT_DEVICE_CTRL_CLR_INT, (void*)RT_DEVICE_FLAG_INT_TX);
|
||||
}
|
||||
else if (dev->open_flag & RT_DEVICE_FLAG_DMA_RX)
|
||||
{
|
||||
struct rt_serial_rx_dma* rx_dma;
|
||||
rt_free(rx_fifo);
|
||||
serial->serial_rx = RT_NULL;
|
||||
dev->open_flag &= ~RT_DEVICE_FLAG_INT_RX;
|
||||
/* configure low level device */
|
||||
serial->ops->control(serial, RT_DEVICE_CTRL_CLR_INT, (void*)RT_DEVICE_FLAG_INT_TX);
|
||||
}
|
||||
else if (dev->open_flag & RT_DEVICE_FLAG_DMA_RX)
|
||||
{
|
||||
struct rt_serial_rx_dma* rx_dma;
|
||||
|
||||
rx_dma = (struct rt_serial_rx_dma*)serial->serial_tx;
|
||||
RT_ASSERT(rx_dma != RT_NULL);
|
||||
rx_dma = (struct rt_serial_rx_dma*)serial->serial_tx;
|
||||
RT_ASSERT(rx_dma != RT_NULL);
|
||||
|
||||
rt_free(rx_dma);
|
||||
serial->serial_rx = RT_NULL;
|
||||
dev->open_flag &= ~RT_DEVICE_FLAG_DMA_RX;
|
||||
}
|
||||
rt_free(rx_dma);
|
||||
serial->serial_rx = RT_NULL;
|
||||
dev->open_flag &= ~RT_DEVICE_FLAG_DMA_RX;
|
||||
}
|
||||
|
||||
if (dev->open_flag & RT_DEVICE_FLAG_INT_TX)
|
||||
{
|
||||
struct rt_serial_tx_fifo* tx_fifo;
|
||||
if (dev->open_flag & RT_DEVICE_FLAG_INT_TX)
|
||||
{
|
||||
struct rt_serial_tx_fifo* tx_fifo;
|
||||
|
||||
tx_fifo = (struct rt_serial_tx_fifo*)serial->serial_rx;
|
||||
RT_ASSERT(tx_fifo != RT_NULL);
|
||||
tx_fifo = (struct rt_serial_tx_fifo*)serial->serial_rx;
|
||||
RT_ASSERT(tx_fifo != RT_NULL);
|
||||
|
||||
rt_free(tx_fifo);
|
||||
serial->serial_tx = RT_NULL;
|
||||
dev->open_flag &= ~RT_DEVICE_FLAG_INT_TX;
|
||||
/* configure low level device */
|
||||
serial->ops->control(serial, RT_DEVICE_CTRL_CLR_INT, (void*)RT_DEVICE_FLAG_INT_TX);
|
||||
}
|
||||
else if (dev->open_flag & RT_DEVICE_FLAG_DMA_TX)
|
||||
{
|
||||
struct rt_serial_tx_dma* tx_dma;
|
||||
rt_free(tx_fifo);
|
||||
serial->serial_tx = RT_NULL;
|
||||
dev->open_flag &= ~RT_DEVICE_FLAG_INT_TX;
|
||||
/* configure low level device */
|
||||
serial->ops->control(serial, RT_DEVICE_CTRL_CLR_INT, (void*)RT_DEVICE_FLAG_INT_TX);
|
||||
}
|
||||
else if (dev->open_flag & RT_DEVICE_FLAG_DMA_TX)
|
||||
{
|
||||
struct rt_serial_tx_dma* tx_dma;
|
||||
|
||||
tx_dma = (struct rt_serial_tx_dma*)serial->serial_tx;
|
||||
RT_ASSERT(tx_dma != RT_NULL);
|
||||
tx_dma = (struct rt_serial_tx_dma*)serial->serial_tx;
|
||||
RT_ASSERT(tx_dma != RT_NULL);
|
||||
|
||||
rt_free(tx_dma);
|
||||
serial->serial_tx = RT_NULL;
|
||||
dev->open_flag &= ~RT_DEVICE_FLAG_DMA_TX;
|
||||
}
|
||||
rt_free(tx_dma);
|
||||
serial->serial_tx = RT_NULL;
|
||||
dev->open_flag &= ~RT_DEVICE_FLAG_DMA_TX;
|
||||
}
|
||||
|
||||
return RT_EOK;
|
||||
}
|
||||
|
|
@ -405,16 +405,16 @@ static rt_size_t rt_serial_read(struct rt_device *dev,
|
|||
|
||||
serial = (struct rt_serial_device *)dev;
|
||||
|
||||
if (dev->open_flag & RT_DEVICE_FLAG_INT_RX)
|
||||
{
|
||||
return _serial_int_rx(serial, buffer, size);
|
||||
}
|
||||
else if (dev->open_flag & RT_DEVICE_FLAG_DMA_RX)
|
||||
{
|
||||
return _serial_dma_rx(serial, buffer, size);
|
||||
}
|
||||
if (dev->open_flag & RT_DEVICE_FLAG_INT_RX)
|
||||
{
|
||||
return _serial_int_rx(serial, buffer, size);
|
||||
}
|
||||
else if (dev->open_flag & RT_DEVICE_FLAG_DMA_RX)
|
||||
{
|
||||
return _serial_dma_rx(serial, buffer, size);
|
||||
}
|
||||
|
||||
return _serial_poll_rx(serial, buffer, size);
|
||||
return _serial_poll_rx(serial, buffer, size);
|
||||
}
|
||||
|
||||
static rt_size_t rt_serial_write(struct rt_device *dev,
|
||||
|
|
@ -429,16 +429,18 @@ static rt_size_t rt_serial_write(struct rt_device *dev,
|
|||
|
||||
serial = (struct rt_serial_device *)dev;
|
||||
|
||||
if (dev->open_flag & RT_DEVICE_FLAG_INT_TX)
|
||||
{
|
||||
_serial_int_tx(serial, buffer, size);
|
||||
}
|
||||
else if (dev->open_flag & RT_DEVICE_FLAG_DMA_TX)
|
||||
{
|
||||
_serial_dma_tx(serial, buffer, size);
|
||||
}
|
||||
|
||||
return _serial_poll_tx(serial, buffer, size);
|
||||
if (dev->open_flag & RT_DEVICE_FLAG_INT_TX)
|
||||
{
|
||||
return _serial_int_tx(serial, buffer, size);
|
||||
}
|
||||
else if (dev->open_flag & RT_DEVICE_FLAG_DMA_TX)
|
||||
{
|
||||
return _serial_dma_tx(serial, buffer, size);
|
||||
}
|
||||
else
|
||||
{
|
||||
return _serial_poll_tx(serial, buffer, size);
|
||||
}
|
||||
}
|
||||
|
||||
static rt_err_t rt_serial_control(struct rt_device *dev,
|
||||
|
|
@ -508,106 +510,106 @@ rt_err_t rt_hw_serial_register(struct rt_serial_device *serial,
|
|||
/* ISR for serial interrupt */
|
||||
void rt_hw_serial_isr(struct rt_serial_device *serial, int event)
|
||||
{
|
||||
switch (event & 0xff)
|
||||
{
|
||||
case RT_SERIAL_EVENT_RX_IND:
|
||||
{
|
||||
int ch = -1;
|
||||
rt_base_t level;
|
||||
struct rt_serial_rx_fifo* rx_fifo;
|
||||
switch (event & 0xff)
|
||||
{
|
||||
case RT_SERIAL_EVENT_RX_IND:
|
||||
{
|
||||
int ch = -1;
|
||||
rt_base_t level;
|
||||
struct rt_serial_rx_fifo* rx_fifo;
|
||||
|
||||
rx_fifo = (struct rt_serial_rx_fifo*)serial->serial_rx;
|
||||
RT_ASSERT(rx_fifo != RT_NULL);
|
||||
rx_fifo = (struct rt_serial_rx_fifo*)serial->serial_rx;
|
||||
RT_ASSERT(rx_fifo != RT_NULL);
|
||||
|
||||
/* interrupt mode receive */
|
||||
RT_ASSERT(serial->parent.open_flag & RT_DEVICE_FLAG_INT_RX);
|
||||
/* interrupt mode receive */
|
||||
RT_ASSERT(serial->parent.open_flag & RT_DEVICE_FLAG_INT_RX);
|
||||
|
||||
while (1)
|
||||
{
|
||||
ch = serial->ops->getc(serial);
|
||||
if (ch == -1) break;
|
||||
while (1)
|
||||
{
|
||||
ch = serial->ops->getc(serial);
|
||||
if (ch == -1) break;
|
||||
|
||||
|
||||
/* disable interrupt */
|
||||
level = rt_hw_interrupt_disable();
|
||||
/* disable interrupt */
|
||||
level = rt_hw_interrupt_disable();
|
||||
|
||||
rx_fifo->buffer[rx_fifo->put_index] = ch;
|
||||
rx_fifo->put_index += 1;
|
||||
if (rx_fifo->put_index >= serial->config.bufsz) rx_fifo->put_index = 0;
|
||||
rx_fifo->buffer[rx_fifo->put_index] = ch;
|
||||
rx_fifo->put_index += 1;
|
||||
if (rx_fifo->put_index >= serial->config.bufsz) rx_fifo->put_index = 0;
|
||||
|
||||
/* if the next position is read index, discard this 'read char' */
|
||||
if (rx_fifo->put_index == rx_fifo->get_index)
|
||||
{
|
||||
rx_fifo->get_index += 1;
|
||||
if (rx_fifo->get_index >= serial->config.bufsz) rx_fifo->get_index = 0;
|
||||
}
|
||||
/* if the next position is read index, discard this 'read char' */
|
||||
if (rx_fifo->put_index == rx_fifo->get_index)
|
||||
{
|
||||
rx_fifo->get_index += 1;
|
||||
if (rx_fifo->get_index >= serial->config.bufsz) rx_fifo->get_index = 0;
|
||||
}
|
||||
|
||||
/* enable interrupt */
|
||||
rt_hw_interrupt_enable(level);
|
||||
}
|
||||
/* enable interrupt */
|
||||
rt_hw_interrupt_enable(level);
|
||||
}
|
||||
|
||||
/* invoke callback */
|
||||
if (serial->parent.rx_indicate != RT_NULL)
|
||||
{
|
||||
rt_size_t rx_length;
|
||||
/* invoke callback */
|
||||
if (serial->parent.rx_indicate != RT_NULL)
|
||||
{
|
||||
rt_size_t rx_length;
|
||||
|
||||
/* get rx length */
|
||||
level = rt_hw_interrupt_disable();
|
||||
rx_length = (rx_fifo->put_index >= rx_fifo->get_index)? (rx_fifo->put_index - rx_fifo->get_index):
|
||||
(serial->config.bufsz - (rx_fifo->get_index - rx_fifo->put_index));
|
||||
rt_hw_interrupt_enable(level);
|
||||
/* get rx length */
|
||||
level = rt_hw_interrupt_disable();
|
||||
rx_length = (rx_fifo->put_index >= rx_fifo->get_index)? (rx_fifo->put_index - rx_fifo->get_index):
|
||||
(serial->config.bufsz - (rx_fifo->get_index - rx_fifo->put_index));
|
||||
rt_hw_interrupt_enable(level);
|
||||
|
||||
serial->parent.rx_indicate(&serial->parent, rx_length);
|
||||
}
|
||||
break;
|
||||
}
|
||||
case RT_SERIAL_EVENT_TX_DONE:
|
||||
{
|
||||
struct rt_serial_tx_fifo* tx_fifo;
|
||||
serial->parent.rx_indicate(&serial->parent, rx_length);
|
||||
}
|
||||
break;
|
||||
}
|
||||
case RT_SERIAL_EVENT_TX_DONE:
|
||||
{
|
||||
struct rt_serial_tx_fifo* tx_fifo;
|
||||
|
||||
tx_fifo = (struct rt_serial_tx_fifo*)serial->serial_tx;
|
||||
rt_completion_done(&(tx_fifo->completion));
|
||||
break;
|
||||
}
|
||||
case RT_SERIAL_EVENT_TX_DMADONE:
|
||||
{
|
||||
const void *data_ptr;
|
||||
rt_size_t data_size;
|
||||
const void *last_data_ptr;
|
||||
struct rt_serial_tx_dma* tx_dma;
|
||||
tx_fifo = (struct rt_serial_tx_fifo*)serial->serial_tx;
|
||||
rt_completion_done(&(tx_fifo->completion));
|
||||
break;
|
||||
}
|
||||
case RT_SERIAL_EVENT_TX_DMADONE:
|
||||
{
|
||||
const void *data_ptr;
|
||||
rt_size_t data_size;
|
||||
const void *last_data_ptr;
|
||||
struct rt_serial_tx_dma* tx_dma;
|
||||
|
||||
tx_dma = (struct rt_serial_tx_dma*) serial->serial_tx;
|
||||
tx_dma = (struct rt_serial_tx_dma*) serial->serial_tx;
|
||||
|
||||
rt_data_queue_pop(&(tx_dma->data_queue), &last_data_ptr, &data_size, 0);
|
||||
if (rt_data_queue_peak(&(tx_dma->data_queue), &data_ptr, &data_size) == RT_EOK)
|
||||
{
|
||||
/* transmit next data node */
|
||||
tx_dma->activated = RT_TRUE;
|
||||
serial->ops->dma_transmit(serial, data_ptr, data_size, RT_SERIAL_DMA_TX);
|
||||
}
|
||||
else
|
||||
{
|
||||
tx_dma->activated = RT_FALSE;
|
||||
}
|
||||
rt_data_queue_pop(&(tx_dma->data_queue), &last_data_ptr, &data_size, 0);
|
||||
if (rt_data_queue_peak(&(tx_dma->data_queue), &data_ptr, &data_size) == RT_EOK)
|
||||
{
|
||||
/* transmit next data node */
|
||||
tx_dma->activated = RT_TRUE;
|
||||
serial->ops->dma_transmit(serial, data_ptr, data_size, RT_SERIAL_DMA_TX);
|
||||
}
|
||||
else
|
||||
{
|
||||
tx_dma->activated = RT_FALSE;
|
||||
}
|
||||
|
||||
/* invoke callback */
|
||||
if (serial->parent.tx_complete != RT_NULL)
|
||||
{
|
||||
serial->parent.tx_complete(&serial->parent, (void*)last_data_ptr);
|
||||
}
|
||||
break;
|
||||
}
|
||||
case RT_SERIAL_EVENT_RX_DMADONE:
|
||||
{
|
||||
int length;
|
||||
struct rt_serial_rx_dma* rx_dma;
|
||||
/* invoke callback */
|
||||
if (serial->parent.tx_complete != RT_NULL)
|
||||
{
|
||||
serial->parent.tx_complete(&serial->parent, (void*)last_data_ptr);
|
||||
}
|
||||
break;
|
||||
}
|
||||
case RT_SERIAL_EVENT_RX_DMADONE:
|
||||
{
|
||||
int length;
|
||||
struct rt_serial_rx_dma* rx_dma;
|
||||
|
||||
rx_dma = (struct rt_serial_rx_dma*)serial->serial_rx;
|
||||
/* get DMA rx length */
|
||||
length = (event & (~0xff)) >> 8;
|
||||
serial->parent.rx_indicate(&(serial->parent), length);
|
||||
rx_dma->activated = RT_FALSE;
|
||||
break;
|
||||
}
|
||||
}
|
||||
rx_dma = (struct rt_serial_rx_dma*)serial->serial_rx;
|
||||
/* get DMA rx length */
|
||||
length = (event & (~0xff)) >> 8;
|
||||
serial->parent.rx_indicate(&(serial->parent), length);
|
||||
rx_dma->activated = RT_FALSE;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue