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Merge pull request #3478 from SummerLife/optimize_uart

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[stm32/driver] optimize uart driver
This commit is contained in:
Bernard Xiong
2020-03-26 22:04:45 +08:00
committed by GitHub
parent 130550d5a6 e5c1183350
commit c1a3de7b8a
4 changed files with 276 additions and 219 deletions
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476
bsp/stm32/libraries/HAL_Drivers/drv_usart.c
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File diff suppressed because it is too large Load Diff

4
bsp/stm32/libraries/HAL_Drivers/drv_usart.h
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@@ -6,7 +6,7 @@
* Change Logs:
* Date Author Notes
* 2018.10.30 SummerGift first version
* 2019.03.05 whj4674672 add stm32h7
* 2019.03.05 whj4674672 add stm32h7
*/
#ifndef __DRV_USART_H__
@@ -50,7 +50,7 @@ struct stm32_uart
{
UART_HandleTypeDef handle;
struct stm32_uart_config *config;
#ifdef RT_SERIAL_USING_DMA
struct
{

14
components/drivers/serial/serial.c
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@@ -733,6 +733,7 @@ static rt_err_t rt_serial_close(struct rt_device *dev)
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_RX);
}
@@ -754,10 +755,11 @@ static rt_err_t rt_serial_close(struct rt_device *dev)
rt_free(rx_fifo);
}
/* configure low level device */
serial->ops->control(serial, RT_DEVICE_CTRL_CLR_INT, (void *) RT_DEVICE_FLAG_DMA_RX);
serial->serial_rx = RT_NULL;
dev->open_flag &= ~RT_DEVICE_FLAG_DMA_RX;
/* configure low level device */
serial->ops->control(serial, RT_DEVICE_CTRL_CLR_INT, (void *) RT_DEVICE_FLAG_DMA_RX);
}
#endif /* RT_SERIAL_USING_DMA */
@@ -771,6 +773,7 @@ static rt_err_t rt_serial_close(struct rt_device *dev)
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);
}
@@ -785,7 +788,14 @@ static rt_err_t rt_serial_close(struct rt_device *dev)
rt_free(tx_dma);
serial->serial_tx = RT_NULL;
dev->open_flag &= ~RT_DEVICE_FLAG_DMA_TX;
/* configure low level device */
serial->ops->control(serial, RT_DEVICE_CTRL_CLR_INT, (void *) RT_DEVICE_FLAG_DMA_TX);
}
serial->ops->control(serial, RT_DEVICE_CTRL_CLOSE, RT_NULL);
dev->flag &= ~RT_DEVICE_FLAG_ACTIVATED;
#endif /* RT_SERIAL_USING_DMA */
return RT_EOK;
}

1
include/rtdef.h
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@@ -898,6 +898,7 @@ enum rt_device_class_type
#define RT_DEVICE_CTRL_RESUME 0x01 /**< resume device */
#define RT_DEVICE_CTRL_SUSPEND 0x02 /**< suspend device */
#define RT_DEVICE_CTRL_CONFIG 0x03 /**< configure device */
#define RT_DEVICE_CTRL_CLOSE 0x04 /**< close device */
#define RT_DEVICE_CTRL_SET_INT 0x10 /**< set interrupt */
#define RT_DEVICE_CTRL_CLR_INT 0x11 /**< clear interrupt */