Update drv_usart.c
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@ -221,36 +221,23 @@ void uart_irq_process(struct rt_serial_device *serial)
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rt_hw_interrupt_enable(level);
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}
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if(serial == &uart_obj[0].serial)
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{
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rt_size_t rx_length;
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rt_size_t rx_length;
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/* get rx length */
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level = rt_hw_interrupt_disable();
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rx_length = (rx_fifo->put_index >= rx_fifo->get_index)? (rx_fifo->put_index - rx_fifo->get_index):
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(serial->config.bufsz - (rx_fifo->get_index - rx_fifo->put_index));
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rt_hw_interrupt_enable(level);
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/* get rx length */
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level = rt_hw_interrupt_disable();
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rx_length = (rx_fifo->put_index >= rx_fifo->get_index)? (rx_fifo->put_index - rx_fifo->get_index):
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(serial->config.bufsz - (rx_fifo->get_index - rx_fifo->put_index));
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rt_hw_interrupt_enable(level);
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if (rx_length)
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{
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if ((serial->parent.rx_indicate != RT_NULL) && (rx_length != 0)) {
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#ifdef RT_CONSOLE_DEVICE_NAME
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if (serial == &uart_obj[*(RT_CONSOLE_DEVICE_NAME + 4) - '0'].serial) {
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shell_rx_ind();
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}
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}else {
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/* invoke callback */
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if (serial->parent.rx_indicate != RT_NULL)
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} else
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#endif
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{
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rt_size_t rx_length;
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/* get rx length */
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level = rt_hw_interrupt_disable();
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rx_length = (rx_fifo->put_index >= rx_fifo->get_index)? (rx_fifo->put_index - rx_fifo->get_index):
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(serial->config.bufsz - (rx_fifo->get_index - rx_fifo->put_index));
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rt_hw_interrupt_enable(level);
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if (rx_length)
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{
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serial->parent.rx_indicate(&serial->parent, rx_length);
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}
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rt_kprintf("rx_indicate must loacted in the .comm section!\n");
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//serial->parent.rx_indicate(&serial->parent, rx_length);
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}
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}
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