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@@ -19,6 +19,7 @@
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* Date Author Notes
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* 2020-01-14 wangyq the first version
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* 2021-04-20 liuhy the second version
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+ * 2021-09-17 shiwa add uart dma
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*/
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#include <rthw.h>
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@@ -26,161 +27,310 @@
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#include <rtdevice.h>
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#include "board.h"
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#include "es_conf_info_uart.h"
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-
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+#include "es_conf_info_dma.h"
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#ifdef RT_USING_SERIAL
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+#define UART_DMA_BUF_SECTIONS 4
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+
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+/*
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+ * To use UART DMA,
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+ * 1. select 'DMA->DMA0'
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+ * 2. select 'UART->UARTx->DMATX(or DMARX)'
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+ * 3. add RT_DEVICE_FLAG_DMA_TX(or RT_DEVICE_FLAG_DMA_RX) flag when open serial device
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+ */
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+#ifdef BSP_UART0_TX_USING_DMA
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+#define UART0_DMATX_CHANNEL ES_UART0_DMATX_CHANNEL
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+#define UART0_DMATX_FLAG RT_DEVICE_FLAG_DMA_TX
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+#else
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+#define UART0_DMATX_CHANNEL ES_DMA_INVAILD_CHANNEL
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+#define UART0_DMATX_FLAG 0
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+#endif
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+
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+#ifdef BSP_UART0_RX_USING_DMA
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+#define UART0_DMARX_CHANNEL ES_UART0_DMARX_CHANNEL
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+#define UART0_DMARX_FLAG RT_DEVICE_FLAG_DMA_RX
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+#else
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+#define UART0_DMARX_CHANNEL ES_DMA_INVAILD_CHANNEL
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+#define UART0_DMARX_FLAG 0
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+#endif
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+
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+#ifdef BSP_UART1_TX_USING_DMA
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+#define UART1_DMATX_CHANNEL ES_UART1_DMATX_CHANNEL
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+#define UART1_DMATX_FLAG RT_DEVICE_FLAG_DMA_TX
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+#else
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+#define UART1_DMATX_CHANNEL ES_DMA_INVAILD_CHANNEL
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+#define UART1_DMATX_FLAG 0
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+#endif
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+
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+#ifdef BSP_UART1_RX_USING_DMA
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+#define UART1_DMARX_CHANNEL ES_UART1_DMARX_CHANNEL
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+#define UART1_DMARX_FLAG RT_DEVICE_FLAG_DMA_RX
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+#else
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+#define UART1_DMARX_CHANNEL ES_DMA_INVAILD_CHANNEL
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+#define UART1_DMARX_FLAG 0
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+#endif
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+
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+#ifdef BSP_UART2_TX_USING_DMA
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+#define UART2_DMATX_CHANNEL ES_UART2_DMATX_CHANNEL
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+#define UART2_DMATX_FLAG RT_DEVICE_FLAG_DMA_TX
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+#else
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+#define UART2_DMATX_CHANNEL ES_DMA_INVAILD_CHANNEL
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+#define UART2_DMATX_FLAG 0
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+#endif
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+
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+#ifdef BSP_UART2_RX_USING_DMA
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+#define UART2_DMARX_CHANNEL ES_UART2_DMARX_CHANNEL
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+#define UART2_DMARX_FLAG RT_DEVICE_FLAG_DMA_RX
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+#else
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+#define UART2_DMARX_CHANNEL ES_DMA_INVAILD_CHANNEL
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+#define UART2_DMARX_FLAG 0
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+#endif
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+
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+#ifdef BSP_UART3_TX_USING_DMA
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+#define UART3_DMATX_CHANNEL ES_UART3_DMATX_CHANNEL
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+#define UART3_DMATX_FLAG RT_DEVICE_FLAG_DMA_TX
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+#else
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+#define UART3_DMATX_CHANNEL ES_DMA_INVAILD_CHANNEL
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+#define UART3_DMATX_FLAG 0
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+#endif
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+
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+#ifdef BSP_UART3_RX_USING_DMA
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+#define UART3_DMARX_CHANNEL ES_UART3_DMARX_CHANNEL
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+#define UART3_DMARX_FLAG RT_DEVICE_FLAG_DMA_RX
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+#else
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+#define UART3_DMARX_CHANNEL ES_DMA_INVAILD_CHANNEL
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+#define UART3_DMARX_FLAG 0
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+#endif
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+
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+#ifdef BSP_UART4_TX_USING_DMA
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+#define UART4_DMATX_CHANNEL ES_UART4_DMATX_CHANNEL
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+#define UART4_DMATX_FLAG RT_DEVICE_FLAG_DMA_TX
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+#else
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+#define UART4_DMATX_CHANNEL ES_DMA_INVAILD_CHANNEL
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+#define UART4_DMATX_FLAG 0
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+#endif
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+
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+#ifdef BSP_UART4_RX_USING_DMA
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+#define UART4_DMARX_CHANNEL ES_UART4_DMARX_CHANNEL
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+#define UART4_DMARX_FLAG RT_DEVICE_FLAG_DMA_RX
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+#else
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+#define UART4_DMARX_CHANNEL ES_DMA_INVAILD_CHANNEL
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+#define UART4_DMARX_FLAG 0
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+#endif
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+
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+#ifdef BSP_UART5_TX_USING_DMA
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+#define UART5_DMATX_CHANNEL ES_UART5_DMATX_CHANNEL
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+#define UART5_DMATX_FLAG RT_DEVICE_FLAG_DMA_TX
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+#else
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+#define UART5_DMATX_CHANNEL ES_DMA_INVAILD_CHANNEL
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+#define UART5_DMATX_FLAG 0
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+#endif
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+
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+#ifdef BSP_UART5_RX_USING_DMA
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+#define UART5_DMARX_CHANNEL ES_UART5_DMARX_CHANNEL
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+#define UART5_DMARX_FLAG RT_DEVICE_FLAG_DMA_RX
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+#else
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+#define UART5_DMARX_CHANNEL ES_DMA_INVAILD_CHANNEL
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+#define UART5_DMARX_FLAG 0
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+#endif
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+
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+#define UART_INVAILD_DMA_CHANNEL (ES_DMA_INVAILD_CHANNEL)
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+
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/* es32 uart driver */
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struct es32_uart
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{
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uart_handle_t huart;
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+ struct rt_serial_device *serial;
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IRQn_Type irq;
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+#ifdef RT_SERIAL_USING_DMA
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+ uint16_t dma_tx_channel;
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+ uint16_t dma_rx_channel;
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+
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+ uint32_t last_rx_count;
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+ uint32_t buf_select;
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+#endif /* RT_SERIAL_USING_DMA */
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};
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+#ifdef RT_SERIAL_USING_DMA
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+ static void _dma_recv_timeout(struct es32_uart *uart, uint32_t dma_end);
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+#endif /* RT_SERIAL_USING_DMA */
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+
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+static void uart_int_handler(struct es32_uart*uart)
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+{
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+ if ((ald_uart_get_mask_flag_status(&uart->huart, UART_IF_RFTH)) != RESET)
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+ {
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+ ald_uart_clear_flag_status(&uart->huart, UART_IF_RFTH);
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+ rt_hw_serial_isr(uart->serial, RT_SERIAL_EVENT_RX_IND);
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+ }
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+ #ifdef RT_SERIAL_USING_DMA
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+ if ((ald_uart_get_mask_flag_status(&uart->huart, UART_IF_RXTO)) != RESET)
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+ {
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+ ald_uart_clear_flag_status(&uart->huart, UART_IF_RXTO);
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+ _dma_recv_timeout(uart, 0);
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+ }
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+
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+ if ((ald_uart_get_mask_flag_status(&uart->huart, UART_IF_TBC)) != RESET)
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+ {
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+ uint32_t cnt = 1000;
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+ ald_uart_clear_flag_status(&uart->huart, UART_IF_TBC);
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+ ald_uart_interrupt_config(&uart->huart, UART_IT_TBC, DISABLE);
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+ CLEAR_BIT(uart->huart.state, UART_STATE_TX_MASK);
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+
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+ while ((uart->huart.perh->STAT & UART_STATUS_TSBUSY) && (cnt--));
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+
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+ ald_uart_clear_flag_status(&uart->huart, UART_IF_TBC);
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+
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+ if (uart->huart.tx_cplt_cbk)
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+ uart->huart.tx_cplt_cbk(&uart->huart);
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+ }
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+ #endif /* RT_SERIAL_USING_DMA */
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+}
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+
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+
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#ifdef BSP_USING_UART0
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+
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+struct rt_serial_device serial0;
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/* UART0 device driver structure */
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struct es32_uart uart0 =
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{
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{UART0},
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- UART0_IRQn
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+ &serial0,
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+ UART0_IRQn,
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+#ifdef RT_SERIAL_USING_DMA
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+ UART0_DMATX_CHANNEL,
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+ UART0_DMARX_CHANNEL
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+#endif /* RT_SERIAL_USING_DMA */
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};
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-
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-struct rt_serial_device serial0;
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-
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void UART0_Handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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-
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- if ((ald_uart_get_mask_flag_status(&uart0.huart, UART_IF_RFTH)) != RESET)
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- {
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- ald_uart_clear_flag_status(&uart0.huart, UART_IF_RFTH);
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- rt_hw_serial_isr(&serial0, RT_SERIAL_EVENT_RX_IND);
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- }
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+ uart_int_handler(&uart0);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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#endif /* BSP_USING_UART0 */
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#ifdef BSP_USING_UART1
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+
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+struct rt_serial_device serial1;
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/* UART1 device driver structure */
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struct es32_uart uart1 =
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{
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{UART1},
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- UART1_IRQn
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+ &serial1,
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+ UART1_IRQn,
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+#ifdef RT_SERIAL_USING_DMA
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+ UART1_DMATX_CHANNEL,
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+ UART1_DMARX_CHANNEL
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+#endif /* RT_SERIAL_USING_DMA */
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};
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-struct rt_serial_device serial1;
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-
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void UART1_Handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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-
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- if ((ald_uart_get_mask_flag_status(&uart1.huart, UART_IF_RFTH)) != RESET)
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- {
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- ald_uart_clear_flag_status(&uart1.huart, UART_IF_RFTH);
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- rt_hw_serial_isr(&serial1, RT_SERIAL_EVENT_RX_IND);
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- }
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+ uart_int_handler(&uart1);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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#endif /* BSP_USING_UART1 */
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#ifdef BSP_USING_UART2
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+
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+struct rt_serial_device serial2;
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/* UART2 device driver structure */
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struct es32_uart uart2 =
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{
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{UART2},
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- UART2_IRQn
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+ &serial2,
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+ UART2_IRQn,
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+#ifdef RT_USING_SERIAL
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+ UART2_DMATX_CHANNEL,
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+ UART2_DMARX_CHANNEL
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+#endif /* RT_SERIAL_USING_DMA */
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};
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-struct rt_serial_device serial2;
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-
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void UART2_Handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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-
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- if ((ald_uart_get_mask_flag_status(&uart2.huart, UART_IF_RFTH)) != RESET)
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- {
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- ald_uart_clear_flag_status(&uart2.huart, UART_IF_RFTH);
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- rt_hw_serial_isr(&serial2, RT_SERIAL_EVENT_RX_IND);
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- }
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+ uart_int_handler(&uart2);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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#endif /* BSP_USING_UART2 */
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#ifdef BSP_USING_UART3
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+
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+struct rt_serial_device serial3;
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/* UART3 device driver structure */
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struct es32_uart uart3 =
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{
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{UART3},
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- UART3_IRQn
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+ &serial3,
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+ UART3_IRQn,
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+#ifdef RT_SERIAL_USING_DMA
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+ UART3_DMATX_CHANNEL,
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+ UART3_DMARX_CHANNEL
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+#endif /* RT_SERIAL_USING_DMA */
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};
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-struct rt_serial_device serial3;
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-
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void UART3_Handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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-
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- if ((ald_uart_get_mask_flag_status(&uart3.huart, UART_IF_RFTH)) != RESET)
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- {
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- ald_uart_clear_flag_status(&uart3.huart, UART_IF_RFTH);
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- rt_hw_serial_isr(&serial3, RT_SERIAL_EVENT_RX_IND);
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- }
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+ uart_int_handler(&uart3);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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#endif /* BSP_USING_UART3 */
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#ifdef BSP_USING_UART4
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+
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+struct rt_serial_device serial4;
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/* UART4 device driver structure */
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struct es32_uart uart4 =
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{
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{UART4},
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- UART4_IRQn
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+ &serial4,
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+ UART4_IRQn,
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+#ifdef RT_SERIAL_USING_DMA
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+ UART4_DMATX_CHANNEL,
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+ UART4_DMARX_CHANNEL
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+#endif /* RT_SERIAL_USING_DMA */
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};
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-struct rt_serial_device serial4;
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-
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void UART4_Handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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-
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- if ((ald_uart_get_mask_flag_status(&uart4.huart, UART_IF_RFTH)) != RESET)
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- {
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- ald_uart_clear_flag_status(&uart4.huart, UART_IF_RFTH);
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- rt_hw_serial_isr(&serial4, RT_SERIAL_EVENT_RX_IND);
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- }
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+ uart_int_handler(&uart4);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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#endif /* BSP_USING_UART4 */
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#ifdef BSP_USING_UART5
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+
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+struct rt_serial_device serial5;
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/* UART5 device driver structure */
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struct es32_uart uart5 =
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{
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{UART5},
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- UART5_IRQn
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+ &serial5,
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+ UART5_IRQn,
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+#ifdef RT_SERIAL_USING_DMA
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+ UART5_DMATX_CHANNEL,
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+ UART5_DMARX_CHANNEL
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+#endif /* RT_SERIAL_USING_DMA */
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};
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-struct rt_serial_device serial5;
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-
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void UART5_Handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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-
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- if ((ald_uart_get_mask_flag_status(&uart5.huart, UART_IF_RFTH)) != RESET)
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- {
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- ald_uart_clear_flag_status(&uart5.huart, UART_IF_RFTH);
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- rt_hw_serial_isr(&serial5, RT_SERIAL_EVENT_RX_IND);
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- }
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+ uart_int_handler(&uart5);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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@@ -204,7 +354,8 @@ static rt_err_t es32f3x_configure(struct rt_serial_device *serial, struct serial
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gpio_initstructure.type = GPIO_TYPE_TTL;
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#ifdef BSP_USING_UART0
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- if(uart == (&uart0))
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+
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+ if (uart == (&uart0))
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{
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#if defined(ES_UART0_TX_GPIO_FUNC)&&defined(ES_UART0_TX_GPIO_PORT)&&defined(ES_UART0_TX_GPIO_PIN)
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gpio_initstructure.func = ES_UART0_TX_GPIO_FUNC;
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@@ -223,7 +374,8 @@ static rt_err_t es32f3x_configure(struct rt_serial_device *serial, struct serial
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#endif /* uart0 gpio init */
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#ifdef BSP_USING_UART1
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- if(uart == (&uart1))
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+
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+ if (uart == (&uart1))
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{
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#if defined(ES_UART1_TX_GPIO_FUNC)&&defined(ES_UART1_TX_GPIO_PORT)&&defined(ES_UART1_TX_GPIO_PIN)
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gpio_initstructure.func = ES_UART1_TX_GPIO_FUNC;
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@@ -239,10 +391,12 @@ static rt_err_t es32f3x_configure(struct rt_serial_device *serial, struct serial
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ald_cmu_perh_clock_config(CMU_PERH_UART1, ENABLE);
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}
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+
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#endif /* uart1 gpio init */
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#ifdef BSP_USING_UART2
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- if(uart == (&uart2))
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+
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+ if (uart == (&uart2))
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{
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#if defined(ES_UART2_TX_GPIO_FUNC)&&defined(ES_UART2_TX_GPIO_PORT)&&defined(ES_UART2_TX_GPIO_PIN)
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gpio_initstructure.func = ES_UART2_TX_GPIO_FUNC;
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@@ -258,10 +412,12 @@ static rt_err_t es32f3x_configure(struct rt_serial_device *serial, struct serial
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ald_cmu_perh_clock_config(CMU_PERH_UART2, ENABLE);
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}
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+
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#endif /* uart2 gpio init */
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#ifdef BSP_USING_UART3
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- if(uart == (&uart3))
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+
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+ if (uart == (&uart3))
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{
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#if defined(ES_UART3_TX_GPIO_FUNC)&&defined(ES_UART3_TX_GPIO_PORT)&&defined(ES_UART3_TX_GPIO_PIN)
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gpio_initstructure.func = ES_UART3_TX_GPIO_FUNC;
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@@ -277,10 +433,12 @@ static rt_err_t es32f3x_configure(struct rt_serial_device *serial, struct serial
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ald_cmu_perh_clock_config(CMU_PERH_UART3, ENABLE);
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}
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+
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#endif /* uart3 gpio init */
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#ifdef BSP_USING_UART4
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- if(uart == (&uart4))
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+
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+ if (uart == (&uart4))
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{
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#if defined(ES_UART4_TX_GPIO_FUNC)&&defined(ES_UART4_TX_GPIO_PORT)&&defined(ES_UART4_TX_GPIO_PIN)
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gpio_initstructure.func = ES_UART4_TX_GPIO_FUNC;
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@@ -296,10 +454,12 @@ static rt_err_t es32f3x_configure(struct rt_serial_device *serial, struct serial
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ald_cmu_perh_clock_config(CMU_PERH_UART4, ENABLE);
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}
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+
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#endif /* uart4 gpio init */
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#ifdef BSP_USING_UART5
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- if(uart == (&uart5))
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+
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+ if (uart == (&uart5))
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{
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#if defined(ES_UART5_TX_GPIO_FUNC)&&defined(ES_UART5_TX_GPIO_PORT)&&defined(ES_UART5_TX_GPIO_PIN)
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gpio_initstructure.func = ES_UART5_TX_GPIO_FUNC;
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@@ -315,6 +475,7 @@ static rt_err_t es32f3x_configure(struct rt_serial_device *serial, struct serial
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ald_cmu_perh_clock_config(CMU_PERH_UART5, ENABLE);
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}
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+
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#endif /* uart5 gpio init */
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ald_uart_tx_fifo_config(&uart->huart, UART_TXFIFO_EMPTY);
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@@ -349,27 +510,179 @@ static rt_err_t es32f3x_configure(struct rt_serial_device *serial, struct serial
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return RT_EOK;
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}
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+
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+
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+#ifdef RT_SERIAL_USING_DMA
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+
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+static void _dma_recv_timeout(struct es32_uart *uart, uint32_t dma_end)
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+{
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+ DMA_TypeDef *DMAx;
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+ dma_config_t *dma_cfg;
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+ dma_descriptor_t *descr;
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+ uint32_t rx_count_total;
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+ uint32_t rx_count;
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+
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+
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+ if (dma_end)
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+ {
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+ rx_count = dma_end - uart->last_rx_count;
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+ uart->last_rx_count = 0;
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+ }
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+ else
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+ {
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+ DMAx = uart->huart.hdmarx.perh;
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+ dma_cfg = &uart->huart.hdmarx.config;
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+ descr = (dma_descriptor_t *)(DMAx->CTRLBASE) + dma_cfg->channel;
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+
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+ rx_count_total = (dma_cfg->size) - (uint32_t)(descr->ctrl.n_minus_1) - 1;
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+
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+ if (rx_count_total)
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+ rx_count = rx_count_total - uart->last_rx_count;
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+ else
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+ return;
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+
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+ uart->last_rx_count = rx_count_total;
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+ }
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+
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+ rt_hw_serial_isr(uart->serial, RT_SERIAL_EVENT_RX_DMADONE | (rx_count << 8));
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+}
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+
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+/**
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+ * DMA TX complete callback
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+ */
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+static void _uart_tx_dma_cplt(uart_handle_t *arg)
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+{
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+ struct es32_uart *uart;
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+ uart = rt_container_of(arg, struct es32_uart, huart);
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+ rt_hw_serial_isr(uart->serial, RT_SERIAL_EVENT_TX_DMADONE);
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+}
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+/**
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+ * DMA RX complete callback
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+ */
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+static void _uart_rx_dma_cplt(uart_handle_t *arg)
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+{
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+ struct es32_uart *uart;
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+ uint8_t *dma_dst;
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+ uart = rt_container_of(arg, struct es32_uart, huart);
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+
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+ if (uart->buf_select == UART_DMA_BUF_SECTIONS - 1)
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+ {
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+ dma_dst = (uint8_t *)uart->huart.hdmarx.config.dst - arg->hdmarx.config.size * (UART_DMA_BUF_SECTIONS - 1);
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+ uart->buf_select = 0;
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+ }
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+ else
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+ {
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+ dma_dst = (uint8_t *)arg->hdmarx.config.dst + arg->hdmarx.config.size;
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+ uart->buf_select += 1;
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+ }
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+
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+ ald_uart_recv_by_dma(arg, dma_dst, arg->hdmarx.config.size, arg->hdmarx.config.channel);
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+ _dma_recv_timeout(uart, arg->hdmarx.config.size);
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+}
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+/**
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+ * Setup DMA
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+ */
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+static rt_err_t es32f3x_dma_config(struct rt_serial_device *serial, rt_ubase_t flag)
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+{
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+ struct es32_uart *uart;
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+ struct rt_serial_rx_fifo *rx_fifo;
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+
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+ RT_ASSERT(serial != RT_NULL);
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+ uart = (struct es32_uart *)serial->parent.user_data;
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+ rx_fifo = (struct rt_serial_rx_fifo *)serial->serial_rx;
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+
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+ if (serial->config.bufsz > 1024)
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+ return -RT_ERROR;
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+
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+ if (RT_DEVICE_FLAG_DMA_RX == flag)
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+ {
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+ if (uart->dma_rx_channel >= UART_INVAILD_DMA_CHANNEL)
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+ return -ERROR;
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+
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+ uart->huart.rx_cplt_cbk = _uart_rx_dma_cplt;
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+ UART_SET_TIMEOUT_VALUE(&uart->huart, 0xFF);
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+ UART_RX_TIMEOUT_ENABLE(&uart->huart);
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+ ald_uart_interrupt_config(&uart->huart, UART_IT_RXTO, ENABLE);
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+ uart->last_rx_count = 0;
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+
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+ if (serial->config.bufsz > 0)
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+ {
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+ ald_uart_recv_by_dma(&uart->huart, rx_fifo->buffer, serial->config.bufsz / UART_DMA_BUF_SECTIONS, uart->dma_rx_channel);;
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+ }
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+ }
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+ else if (RT_DEVICE_FLAG_DMA_TX == flag)
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+ {
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+ if (uart->dma_tx_channel >= UART_INVAILD_DMA_CHANNEL)
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+ return -ERROR;
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+
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+ uart->huart.tx_cplt_cbk = _uart_tx_dma_cplt;
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+ }
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+
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+ uart->huart.err_code = UART_ERROR_NONE;
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+ //NVIC_SetPriority(DMA_IRQn,0);
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+ NVIC_EnableIRQ(uart->irq);
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+ ald_cmu_perh_clock_config(CMU_PERH_DMA, ENABLE);
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+ return RT_EOK;
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+}
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+#endif /* RT_SERIAL_USING_DMA */
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+
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static rt_err_t es32f3x_control(struct rt_serial_device *serial, int cmd, void *arg)
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{
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struct es32_uart *uart;
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+#ifdef RT_SERIAL_USING_DMA
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+ rt_ubase_t ctrl_arg = (rt_ubase_t)arg;
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+#endif
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RT_ASSERT(serial != RT_NULL);
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uart = (struct es32_uart *)serial->parent.user_data;
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+
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switch (cmd)
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{
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- case RT_DEVICE_CTRL_CLR_INT:
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- /* disable rx irq */
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- NVIC_DisableIRQ(uart->irq);
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- /* disable interrupt */
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- ald_uart_interrupt_config(&uart->huart, UART_IT_RFTH, DISABLE);
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- break;
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-
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- case RT_DEVICE_CTRL_SET_INT:
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- /* enable rx irq */
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- NVIC_EnableIRQ(uart->irq);
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- /* enable interrupt */
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- ald_uart_interrupt_config(&uart->huart, UART_IT_RFTH, ENABLE);
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- break;
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+ case RT_DEVICE_CTRL_CLR_INT:
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+ /* disable rx irq */
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+ NVIC_DisableIRQ(uart->irq);
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+ /* disable interrupt */
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+ ald_uart_interrupt_config(&uart->huart, UART_IT_RFTH, DISABLE);
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+#ifdef RT_SERIAL_USING_DMA
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+
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+ /* disable DMA */
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+ if (ctrl_arg == RT_DEVICE_FLAG_DMA_RX)
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+ {
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+ ald_uart_dma_req_config(&uart->huart, UART_DMA_REQ_RX, DISABLE);
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+ }
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+ else if (ctrl_arg == RT_DEVICE_FLAG_DMA_TX)
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+ {
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+ ald_uart_dma_req_config(&uart->huart, UART_DMA_REQ_TX, DISABLE);
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+ }
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+
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+#endif
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+ break;
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+
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+ case RT_DEVICE_CTRL_SET_INT:
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+ /* enable rx irq */
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+ NVIC_EnableIRQ(uart->irq);
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+ /* enable interrupt */
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+ ald_uart_interrupt_config(&uart->huart, UART_IT_RFTH, ENABLE);
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+ break;
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+#ifdef RT_SERIAL_USING_DMA
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+
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+ case RT_DEVICE_CTRL_CONFIG:
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+ /* Setup DMA */
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+ es32f3x_dma_config(serial, ctrl_arg);
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+ break;
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+#endif
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+
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+ case RT_DEVICE_CTRL_CLOSE:
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+ while (ald_uart_get_status(&uart->huart, (UART_STATUS_TSBUSY)));
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+
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+#ifdef RT_SERIAL_USING_DMA
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+ uart->huart.rx_cplt_cbk = NULL;
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+ uart->huart.tx_cplt_cbk = NULL;
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+ /* disable DMA */
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+ ald_uart_dma_stop(&uart->huart);
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+#endif
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+ ald_uart_reset(&uart->huart);
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+ break;
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}
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return RT_EOK;
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@@ -383,6 +696,7 @@ static int es32f3x_putc(struct rt_serial_device *serial, char c)
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while (ald_uart_get_status(&uart->huart, UART_STATUS_TFEMPTY) == RESET)
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;
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+
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WRITE_REG(uart->huart.perh->TXBUF, c);
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return 1;
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@@ -403,13 +717,62 @@ static int es32f3x_getc(struct rt_serial_device *serial)
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return ch;
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}
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+#ifdef RT_SERIAL_USING_DMA
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+/**
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+ * DMA transmit
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+ */
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+static rt_size_t es32f3x_dma_transmit(struct rt_serial_device *serial, rt_uint8_t *buf, rt_size_t size, int direction)
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+{
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+ struct es32_uart *uart;
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+
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+ RT_ASSERT(serial != RT_NULL);
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+ uart = (struct es32_uart *)serial->parent.user_data;
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+
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+ if (direction == RT_SERIAL_DMA_TX)
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+ {
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+ if (uart->dma_tx_channel >= UART_INVAILD_DMA_CHANNEL)
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+ return 0;
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+
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+ if (OK == ald_uart_send_by_dma(&uart->huart, buf, size, uart->dma_tx_channel))
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+ {
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+ return size;
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+ }
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+ else
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+ {
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+ return 0;
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+ }
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+ }
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+ else if (direction == RT_SERIAL_DMA_RX)
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+ {
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+ if (uart->dma_rx_channel >= UART_INVAILD_DMA_CHANNEL)
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+ return 0;
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+
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+ if (OK == ald_uart_recv_by_dma(&uart->huart, buf, size, uart->dma_rx_channel))
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+ {
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+ return size;
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+ }
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+ else
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+ {
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+ return 0;
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+ }
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+
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+ }
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+
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+ return 0;
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+}
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+#endif
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static const struct rt_uart_ops es32f3x_uart_ops =
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{
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es32f3x_configure,
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es32f3x_control,
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es32f3x_putc,
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es32f3x_getc,
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+#ifdef RT_SERIAL_USING_DMA
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+ es32f3x_dma_transmit
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+#else
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+ NULL
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+#endif
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};
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int rt_hw_uart_init(void)
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@@ -423,7 +786,8 @@ int rt_hw_uart_init(void)
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/* register UART0 device */
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rt_hw_serial_register(&serial0, ES_DEVICE_NAME_UART0,
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- RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
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+ RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX |
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+ UART0_DMATX_FLAG | UART0_DMARX_FLAG,
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uart);
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#endif /* BSP_USING_UART0 */
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@@ -434,7 +798,8 @@ int rt_hw_uart_init(void)
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/* register UART1 device */
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rt_hw_serial_register(&serial1, ES_DEVICE_NAME_UART1,
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- RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
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+ RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX |
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+ UART1_DMATX_FLAG | UART1_DMARX_FLAG,
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uart);
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#endif /* BSP_USING_UART1 */
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@@ -445,7 +810,8 @@ int rt_hw_uart_init(void)
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/* register UART2 device */
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rt_hw_serial_register(&serial2, ES_DEVICE_NAME_UART2,
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- RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
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+ RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX |
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+ UART2_DMATX_FLAG | UART2_DMARX_FLAG,
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uart);
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#endif /* BSP_USING_UART2 */
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@@ -456,7 +822,8 @@ int rt_hw_uart_init(void)
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/* register UART3 device */
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rt_hw_serial_register(&serial3, ES_DEVICE_NAME_UART3,
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- RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
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+ RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX |
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+ UART3_DMATX_FLAG | UART3_DMARX_FLAG,
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uart);
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#endif /* BSP_USING_UART3 */
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@@ -467,7 +834,8 @@ int rt_hw_uart_init(void)
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/* register UART4 device */
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rt_hw_serial_register(&serial4, ES_DEVICE_NAME_UART4,
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- RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
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+ RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX |
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+ UART4_DMATX_FLAG | UART4_DMARX_FLAG,
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uart);
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#endif /* BSP_USING_UART4 */
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@@ -478,7 +846,8 @@ int rt_hw_uart_init(void)
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/* register UART5 device */
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rt_hw_serial_register(&serial5, ES_DEVICE_NAME_UART5,
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- RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
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+ RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX |
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+ UART5_DMATX_FLAG | UART5_DMARX_FLAG,
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uart);
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#endif /* BSP_USING_UART5 */
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