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e5c11833
编写于
3月 23, 2020
作者:
S
SummerGift
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
[optimize] stm32 uart driver
上级
5ddb0d51
变更
4
显示空白变更内容
内联
并排
Showing
4 changed file
with
182 addition
and
125 deletion
+182
-125
bsp/stm32/libraries/HAL_Drivers/drv_usart.c
bsp/stm32/libraries/HAL_Drivers/drv_usart.c
+167
-121
bsp/stm32/libraries/HAL_Drivers/drv_usart.h
bsp/stm32/libraries/HAL_Drivers/drv_usart.h
+2
-2
components/drivers/serial/serial.c
components/drivers/serial/serial.c
+12
-2
include/rtdef.h
include/rtdef.h
+1
-0
未找到文件。
bsp/stm32/libraries/HAL_Drivers/drv_usart.c
浏览文件 @
e5c11833
...
...
@@ -6,6 +6,8 @@
* Change Logs:
* Date Author Notes
* 2018-10-30 SummerGift first version
* 2020-03-16 SummerGift add device close feature
* 2020-03-20 SummerGift fix bug caused by ORE
*/
#include "board.h"
...
...
@@ -21,12 +23,12 @@
#if !defined(BSP_USING_UART1) && !defined(BSP_USING_UART2) && !defined(BSP_USING_UART3) && \
!defined(BSP_USING_UART4) && !defined(BSP_USING_UART5) && !defined(BSP_USING_UART6) && \
!defined(BSP_USING_UART7) && !defined(BSP_USING_UART8) && !defined(BSP_USING_LPUART1)
#error "Please define at least one BSP_USING_UARTx"
/* this driver can be disabled at menuconfig -> RT-Thread Components -> Device Drivers */
#error "Please define at least one BSP_USING_UARTx"
/* this driver can be disabled at menuconfig -> RT-Thread Components -> Device Drivers */
#endif
#ifdef RT_SERIAL_USING_DMA
static
void
stm32_dma_config
(
struct
rt_serial_device
*
serial
,
rt_ubase_t
flag
);
static
void
stm32_dma_config
(
struct
rt_serial_device
*
serial
,
rt_ubase_t
flag
);
#endif
enum
...
...
@@ -100,12 +102,12 @@ static rt_err_t stm32_configure(struct rt_serial_device *serial, struct serial_c
RT_ASSERT
(
cfg
!=
RT_NULL
);
uart
=
rt_container_of
(
serial
,
struct
stm32_uart
,
serial
);
uart
->
handle
.
Instance
=
uart
->
config
->
Instance
;
uart
->
handle
.
Init
.
BaudRate
=
cfg
->
baud_rate
;
uart
->
handle
.
Init
.
HwFlowCtl
=
UART_HWCONTROL_NONE
;
uart
->
handle
.
Init
.
Mode
=
UART_MODE_TX_RX
;
uart
->
handle
.
Init
.
OverSampling
=
UART_OVERSAMPLING_16
;
switch
(
cfg
->
data_bits
)
{
case
DATA_BITS_8
:
...
...
@@ -118,6 +120,7 @@ static rt_err_t stm32_configure(struct rt_serial_device *serial, struct serial_c
uart
->
handle
.
Init
.
WordLength
=
UART_WORDLENGTH_8B
;
break
;
}
switch
(
cfg
->
stop_bits
)
{
case
STOP_BITS_1
:
...
...
@@ -130,6 +133,7 @@ static rt_err_t stm32_configure(struct rt_serial_device *serial, struct serial_c
uart
->
handle
.
Init
.
StopBits
=
UART_STOPBITS_1
;
break
;
}
switch
(
cfg
->
parity
)
{
case
PARITY_NONE
:
...
...
@@ -146,6 +150,10 @@ static rt_err_t stm32_configure(struct rt_serial_device *serial, struct serial_c
break
;
}
#ifdef RT_SERIAL_USING_DMA
uart
->
dma_rx
.
last_index
=
0
;
#endif
if
(
HAL_UART_Init
(
&
uart
->
handle
)
!=
HAL_OK
)
{
return
-
RT_ERROR
;
...
...
@@ -172,7 +180,33 @@ static rt_err_t stm32_control(struct rt_serial_device *serial, int cmd, void *ar
NVIC_DisableIRQ
(
uart
->
config
->
irq_type
);
/* disable interrupt */
__HAL_UART_DISABLE_IT
(
&
(
uart
->
handle
),
UART_IT_RXNE
);
#ifdef RT_SERIAL_USING_DMA
/* disable DMA */
if
(
ctrl_arg
==
RT_DEVICE_FLAG_DMA_RX
)
{
HAL_NVIC_DisableIRQ
(
uart
->
config
->
dma_rx
->
dma_irq
);
if
(
HAL_DMA_Abort
(
&
(
uart
->
dma_rx
.
handle
))
!=
HAL_OK
)
{
RT_ASSERT
(
0
);
}
if
(
HAL_DMA_DeInit
(
&
(
uart
->
dma_rx
.
handle
))
!=
HAL_OK
)
{
RT_ASSERT
(
0
);
}
}
else
if
(
ctrl_arg
==
RT_DEVICE_FLAG_DMA_TX
)
{
HAL_NVIC_DisableIRQ
(
uart
->
config
->
dma_tx
->
dma_irq
);
if
(
HAL_DMA_DeInit
(
&
(
uart
->
dma_tx
.
handle
))
!=
HAL_OK
)
{
RT_ASSERT
(
0
);
}
}
#endif
break
;
/* enable interrupt */
case
RT_DEVICE_CTRL_SET_INT
:
/* enable rx irq */
...
...
@@ -186,6 +220,14 @@ static rt_err_t stm32_control(struct rt_serial_device *serial, int cmd, void *ar
stm32_dma_config
(
serial
,
ctrl_arg
);
break
;
#endif
case
RT_DEVICE_CTRL_CLOSE
:
if
(
HAL_UART_DeInit
(
&
(
uart
->
handle
))
!=
HAL_OK
)
{
RT_ASSERT
(
0
)
}
break
;
}
return
RT_EOK
;
}
...
...
@@ -233,6 +275,7 @@ static rt_size_t stm32_dma_transmit(struct rt_serial_device *serial, rt_uint8_t
{
struct
stm32_uart
*
uart
;
RT_ASSERT
(
serial
!=
RT_NULL
);
RT_ASSERT
(
buf
!=
RT_NULL
);
uart
=
rt_container_of
(
serial
,
struct
stm32_uart
,
serial
);
if
(
size
==
0
)
...
...
@@ -254,15 +297,6 @@ static rt_size_t stm32_dma_transmit(struct rt_serial_device *serial, rt_uint8_t
return
0
;
}
static
const
struct
rt_uart_ops
stm32_uart_ops
=
{
.
configure
=
stm32_configure
,
.
control
=
stm32_control
,
.
putc
=
stm32_putc
,
.
getc
=
stm32_getc
,
.
dma_transmit
=
stm32_dma_transmit
};
/**
* Uart common interrupt process. This need add to uart ISR.
*
...
...
@@ -301,17 +335,15 @@ static void uart_isr(struct rt_serial_device *serial)
}
__HAL_UART_CLEAR_IDLEFLAG
(
&
uart
->
handle
);
}
else
if
(
__HAL_UART_GET_FLAG
(
&
(
uart
->
handle
),
UART_FLAG_TC
)
!=
RESET
)
else
if
(
__HAL_UART_GET_FLAG
(
&
(
uart
->
handle
),
UART_FLAG_TC
)
&&
(
__HAL_UART_GET_IT_SOURCE
(
&
(
uart
->
handle
),
UART_IT_TC
)
!=
RESET
))
{
if
((
serial
->
parent
.
open_flag
&
RT_DEVICE_FLAG_DMA_TX
)
!=
0
)
{
HAL_UART_IRQHandler
(
&
(
uart
->
handle
));
}
else
{
UART_INSTANCE_CLEAR_FUNCTION
(
&
(
uart
->
handle
),
UART_FLAG_TC
);
}
}
#endif
else
{
...
...
@@ -714,6 +746,93 @@ void LPUART1_DMA_RX_IRQHandler(void)
#endif
/* defined(RT_SERIAL_USING_DMA) && defined(BSP_LPUART1_RX_USING_DMA) */
#endif
/* BSP_USING_LPUART1*/
static
void
stm32_uart_get_dma_config
(
void
)
{
#ifdef BSP_USING_UART1
uart_obj
[
UART1_INDEX
].
uart_dma_flag
=
0
;
#ifdef BSP_UART1_RX_USING_DMA
uart_obj
[
UART1_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_RX
;
static
struct
dma_config
uart1_dma_rx
=
UART1_DMA_RX_CONFIG
;
uart_config
[
UART1_INDEX
].
dma_rx
=
&
uart1_dma_rx
;
#endif
#ifdef BSP_UART1_TX_USING_DMA
uart_obj
[
UART1_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_TX
;
static
struct
dma_config
uart1_dma_tx
=
UART1_DMA_TX_CONFIG
;
uart_config
[
UART1_INDEX
].
dma_tx
=
&
uart1_dma_tx
;
#endif
#endif
#ifdef BSP_USING_UART2
uart_obj
[
UART2_INDEX
].
uart_dma_flag
=
0
;
#ifdef BSP_UART2_RX_USING_DMA
uart_obj
[
UART2_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_RX
;
static
struct
dma_config
uart2_dma_rx
=
UART2_DMA_RX_CONFIG
;
uart_config
[
UART2_INDEX
].
dma_rx
=
&
uart2_dma_rx
;
#endif
#ifdef BSP_UART2_TX_USING_DMA
uart_obj
[
UART2_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_TX
;
static
struct
dma_config
uart2_dma_tx
=
UART2_DMA_TX_CONFIG
;
uart_config
[
UART2_INDEX
].
dma_tx
=
&
uart2_dma_tx
;
#endif
#endif
#ifdef BSP_USING_UART3
uart_obj
[
UART3_INDEX
].
uart_dma_flag
=
0
;
#ifdef BSP_UART3_RX_USING_DMA
uart_obj
[
UART3_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_RX
;
static
struct
dma_config
uart3_dma_rx
=
UART3_DMA_RX_CONFIG
;
uart_config
[
UART3_INDEX
].
dma_rx
=
&
uart3_dma_rx
;
#endif
#ifdef BSP_UART3_TX_USING_DMA
uart_obj
[
UART3_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_TX
;
static
struct
dma_config
uart3_dma_tx
=
UART3_DMA_TX_CONFIG
;
uart_config
[
UART3_INDEX
].
dma_tx
=
&
uart3_dma_tx
;
#endif
#endif
#ifdef BSP_USING_UART4
uart_obj
[
UART4_INDEX
].
uart_dma_flag
=
0
;
#ifdef BSP_UART4_RX_USING_DMA
uart_obj
[
UART4_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_RX
;
static
struct
dma_config
uart4_dma_rx
=
UART4_DMA_RX_CONFIG
;
uart_config
[
UART4_INDEX
].
dma_rx
=
&
uart4_dma_rx
;
#endif
#ifdef BSP_UART4_TX_USING_DMA
uart_obj
[
UART4_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_TX
;
static
struct
dma_config
uart4_dma_tx
=
UART4_DMA_TX_CONFIG
;
uart_config
[
UART4_INDEX
].
dma_tx
=
&
uart4_dma_tx
;
#endif
#endif
#ifdef BSP_USING_UART5
uart_obj
[
UART5_INDEX
].
uart_dma_flag
=
0
;
#ifdef BSP_UART5_RX_USING_DMA
uart_obj
[
UART5_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_RX
;
static
struct
dma_config
uart5_dma_rx
=
UART5_DMA_RX_CONFIG
;
uart_config
[
UART5_INDEX
].
dma_rx
=
&
uart5_dma_rx
;
#endif
#ifdef BSP_UART5_TX_USING_DMA
uart_obj
[
UART5_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_TX
;
static
struct
dma_config
uart5_dma_tx
=
UART5_DMA_TX_CONFIG
;
uart_config
[
UART5_INDEX
].
dma_tx
=
&
uart5_dma_tx
;
#endif
#endif
#ifdef BSP_USING_UART6
uart_obj
[
UART6_INDEX
].
uart_dma_flag
=
0
;
#ifdef BSP_UART6_RX_USING_DMA
uart_obj
[
UART6_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_RX
;
static
struct
dma_config
uart6_dma_rx
=
UART6_DMA_RX_CONFIG
;
uart_config
[
UART6_INDEX
].
dma_rx
=
&
uart6_dma_rx
;
#endif
#ifdef BSP_UART6_TX_USING_DMA
uart_obj
[
UART6_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_TX
;
static
struct
dma_config
uart6_dma_tx
=
UART6_DMA_TX_CONFIG
;
uart_config
[
UART6_INDEX
].
dma_tx
=
&
uart6_dma_tx
;
#endif
#endif
}
#ifdef RT_SERIAL_USING_DMA
static
void
stm32_dma_config
(
struct
rt_serial_device
*
serial
,
rt_ubase_t
flag
)
{
...
...
@@ -821,7 +940,7 @@ static void stm32_dma_config(struct rt_serial_device *serial, rt_ubase_t flag)
__HAL_UART_ENABLE_IT
(
&
(
uart
->
handle
),
UART_IT_IDLE
);
}
/*
enable irq
*/
/*
DMA irq should set in DMA TX mode, or HAL_UART_TxCpltCallback function will not be called
*/
HAL_NVIC_SetPriority
(
dma_config
->
dma_irq
,
0
,
0
);
HAL_NVIC_EnableIRQ
(
dma_config
->
dma_irq
);
...
...
@@ -886,9 +1005,6 @@ static void _dma_tx_complete(struct rt_serial_device *serial)
RT_ASSERT
(
serial
!=
RT_NULL
);
uart
=
rt_container_of
(
serial
,
struct
stm32_uart
,
serial
);
if
((
__HAL_DMA_GET_IT_SOURCE
(
&
(
uart
->
dma_tx
.
handle
),
DMA_IT_TC
)
!=
RESET
)
||
(
__HAL_DMA_GET_IT_SOURCE
(
&
(
uart
->
dma_tx
.
handle
),
DMA_IT_HT
)
!=
RESET
))
{
level
=
rt_hw_interrupt_disable
();
trans_total_index
=
__HAL_DMA_GET_COUNTER
(
&
(
uart
->
dma_tx
.
handle
));
rt_hw_interrupt_enable
(
level
);
...
...
@@ -897,9 +1013,15 @@ static void _dma_tx_complete(struct rt_serial_device *serial)
{
rt_hw_serial_isr
(
serial
,
RT_SERIAL_EVENT_TX_DMADONE
);
}
}
}
/**
* @brief HAL_UART_TxCpltCallback
* @param huart: UART handle
* @note This callback can be called by two functions, first in UART_EndTransmit_IT when
* UART Tx complete and second in UART_DMATransmitCplt function in DMA Circular mode.
* @retval None
*/
void
HAL_UART_TxCpltCallback
(
UART_HandleTypeDef
*
huart
)
{
struct
stm32_uart
*
uart
;
...
...
@@ -909,92 +1031,14 @@ void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
}
#endif
/* RT_SERIAL_USING_DMA */
static
void
stm32_uart_get_dma_config
(
void
)
static
const
struct
rt_uart_ops
stm32_uart_ops
=
{
#ifdef BSP_USING_UART1
uart_obj
[
UART1_INDEX
].
uart_dma_flag
=
0
;
#ifdef BSP_UART1_RX_USING_DMA
uart_obj
[
UART1_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_RX
;
static
struct
dma_config
uart1_dma_rx
=
UART1_DMA_RX_CONFIG
;
uart_config
[
UART1_INDEX
].
dma_rx
=
&
uart1_dma_rx
;
#endif
#ifdef BSP_UART1_TX_USING_DMA
uart_obj
[
UART1_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_TX
;
static
struct
dma_config
uart1_dma_tx
=
UART1_DMA_TX_CONFIG
;
uart_config
[
UART1_INDEX
].
dma_tx
=
&
uart1_dma_tx
;
#endif
#endif
#ifdef BSP_USING_UART2
uart_obj
[
UART2_INDEX
].
uart_dma_flag
=
0
;
#ifdef BSP_UART2_RX_USING_DMA
uart_obj
[
UART2_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_RX
;
static
struct
dma_config
uart2_dma_rx
=
UART2_DMA_RX_CONFIG
;
uart_config
[
UART2_INDEX
].
dma_rx
=
&
uart2_dma_rx
;
#endif
#ifdef BSP_UART2_TX_USING_DMA
uart_obj
[
UART2_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_TX
;
static
struct
dma_config
uart2_dma_tx
=
UART2_DMA_TX_CONFIG
;
uart_config
[
UART2_INDEX
].
dma_tx
=
&
uart2_dma_tx
;
#endif
#endif
#ifdef BSP_USING_UART3
uart_obj
[
UART3_INDEX
].
uart_dma_flag
=
0
;
#ifdef BSP_UART3_RX_USING_DMA
uart_obj
[
UART3_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_RX
;
static
struct
dma_config
uart3_dma_rx
=
UART3_DMA_RX_CONFIG
;
uart_config
[
UART3_INDEX
].
dma_rx
=
&
uart3_dma_rx
;
#endif
#ifdef BSP_UART3_TX_USING_DMA
uart_obj
[
UART3_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_TX
;
static
struct
dma_config
uart3_dma_tx
=
UART3_DMA_TX_CONFIG
;
uart_config
[
UART3_INDEX
].
dma_tx
=
&
uart3_dma_tx
;
#endif
#endif
#ifdef BSP_USING_UART4
uart_obj
[
UART4_INDEX
].
uart_dma_flag
=
0
;
#ifdef BSP_UART4_RX_USING_DMA
uart_obj
[
UART4_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_RX
;
static
struct
dma_config
uart4_dma_rx
=
UART4_DMA_RX_CONFIG
;
uart_config
[
UART4_INDEX
].
dma_rx
=
&
uart4_dma_rx
;
#endif
#ifdef BSP_UART4_TX_USING_DMA
uart_obj
[
UART4_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_TX
;
static
struct
dma_config
uart4_dma_tx
=
UART4_DMA_TX_CONFIG
;
uart_config
[
UART4_INDEX
].
dma_tx
=
&
uart4_dma_tx
;
#endif
#endif
#ifdef BSP_USING_UART5
uart_obj
[
UART5_INDEX
].
uart_dma_flag
=
0
;
#ifdef BSP_UART5_RX_USING_DMA
uart_obj
[
UART5_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_RX
;
static
struct
dma_config
uart5_dma_rx
=
UART5_DMA_RX_CONFIG
;
uart_config
[
UART5_INDEX
].
dma_rx
=
&
uart5_dma_rx
;
#endif
#ifdef BSP_UART5_TX_USING_DMA
uart_obj
[
UART5_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_TX
;
static
struct
dma_config
uart5_dma_tx
=
UART5_DMA_TX_CONFIG
;
uart_config
[
UART5_INDEX
].
dma_tx
=
&
uart5_dma_tx
;
#endif
#endif
#ifdef BSP_USING_UART6
uart_obj
[
UART6_INDEX
].
uart_dma_flag
=
0
;
#ifdef BSP_UART6_RX_USING_DMA
uart_obj
[
UART6_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_RX
;
static
struct
dma_config
uart6_dma_rx
=
UART6_DMA_RX_CONFIG
;
uart_config
[
UART6_INDEX
].
dma_rx
=
&
uart6_dma_rx
;
#endif
#ifdef BSP_UART6_TX_USING_DMA
uart_obj
[
UART6_INDEX
].
uart_dma_flag
|=
RT_DEVICE_FLAG_DMA_TX
;
static
struct
dma_config
uart6_dma_tx
=
UART6_DMA_TX_CONFIG
;
uart_config
[
UART6_INDEX
].
dma_tx
=
&
uart6_dma_tx
;
#endif
#endif
}
.
configure
=
stm32_configure
,
.
control
=
stm32_control
,
.
putc
=
stm32_putc
,
.
getc
=
stm32_getc
,
.
dma_transmit
=
stm32_dma_transmit
};
int
rt_hw_usart_init
(
void
)
{
...
...
@@ -1006,9 +1050,11 @@ int rt_hw_usart_init(void)
for
(
int
i
=
0
;
i
<
obj_num
;
i
++
)
{
/* init UART object */
uart_obj
[
i
].
config
=
&
uart_config
[
i
];
uart_obj
[
i
].
serial
.
ops
=
&
stm32_uart_ops
;
uart_obj
[
i
].
serial
.
config
=
config
;
/* register UART device */
result
=
rt_hw_serial_register
(
&
uart_obj
[
i
].
serial
,
uart_obj
[
i
].
config
->
name
,
RT_DEVICE_FLAG_RDWR
...
...
bsp/stm32/libraries/HAL_Drivers/drv_usart.h
浏览文件 @
e5c11833
components/drivers/serial/serial.c
浏览文件 @
e5c11833
...
...
@@ -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
;
}
...
...
include/rtdef.h
浏览文件 @
e5c11833
...
...
@@ -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 */
...
...
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