static rt_err_t stm32_control(struct rt_serial_device *serial, int cmd, void *arg)
{
struct stm32_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = (struct stm32_uart *)serial->parent.user_data;
switch (cmd)
{
case RT_DEVICE_CTRL_CLR_INT:
/* disable rx irq */
UART_DISABLE_IRQ(uart->irq);
/* disable interrupt */
USART_ITConfig(uart->uart_device, USART_IT_RXNE, DISABLE);
break;
case RT_DEVICE_CTRL_SET_INT:
/* enable rx irq */
UART_ENABLE_IRQ(uart->irq);
/* enable interrupt */
USART_ITConfig(uart->uart_device, USART_IT_RXNE, ENABLE);
break;
}
return RT_EOK;
}
/*
* UartDev_UnInit
*/
static int32_t UartDev_UnInit(uint32_t Ch)
{
Uart_INFO *p_info;
int32_t ret;
if (Mfs_Lock(Ch) != ERROR) {
p_info = &UartInfo[Ch];
if (p_info->State != UART_INITIALIZED) {
ret = ERROR; /* not initialized */
} else {
uart_StopRx(p_info);
/* change state */
p_info->State = UART_UNINITIALIZED;
/* disable NVIC */
UART_DISABLE_IRQ(p_info->RxIRQn);
UART_DISABLE_IRQ(p_info->TxIRQn);
/* uninitialize */
uart_UnInit(Ch, p_info);
Mfs_Close(Ch);
ret = SUCCESS;
}
Mfs_UnLock(Ch);
} else {
ret = ERROR; /* Mfs_Lock error */
}
return ret;
}
static rt_err_t uart47_control(struct rt_serial_device *serial, int cmd, void *arg)
{
struct uart47_device *uart;
RT_ASSERT(serial != RT_NULL);
uart = (struct uart47_device *)serial->parent.user_data;
switch (cmd)
{
case RT_DEVICE_CTRL_CLR_INT:
/* disable rx irq */
UART_DISABLE_IRQ(uart->rx_irq);
break;
case RT_DEVICE_CTRL_SET_INT:
/* enable rx irq */
UART_ENABLE_IRQ(uart->rx_irq);
break;
}
return (RT_EOK);
}
static rt_err_t __uart_control(struct rt_serial_device *serial, int cmd, void *arg)
{
struct uart_device *uartDev = RT_NULL;
RT_ASSERT(serial != RT_NULL);
uartDev = (struct uart_device *)serial->parent.user_data;
switch (cmd)
{
case RT_DEVICE_CTRL_CLR_INT: /* disable rx irq */
UART_DISABLE_IRQ(uartDev->irq);
break;
case RT_DEVICE_CTRL_SET_INT: /* enable rx irq */
UART_ENABLE_IRQ(uartDev->irq);
break;
default:
break;
}
return RT_EOK;
}
static rt_err_t stm32_control(struct rt_serial_device *serial, int cmd, void *arg)
{
struct stm32_uart* uart;
rt_uint32_t irq_type = (rt_uint32_t)(arg);
RT_ASSERT(serial != RT_NULL);
uart = (struct stm32_uart *)serial->parent.user_data;
switch (cmd)
{
/* disable interrupt */
case RT_DEVICE_CTRL_CLR_INT:
if (irq_type == RT_DEVICE_FLAG_INT_RX)
{
/* disable rx irq */
USART_ITConfig(uart->uart_device, USART_IT_RXNE, DISABLE);
}
else if (irq_type == RT_DEVICE_FLAG_INT_TX)
{
/* disable tx irq */
USART_ITConfig(uart->uart_device, uart->tx_irq_type, DISABLE);
}
else if (irq_type == RT_NULL)
{
/* disable irq */
UART_DISABLE_IRQ(uart->irq);
}
break;
/* enable interrupt */
case RT_DEVICE_CTRL_SET_INT:
if (irq_type == RT_DEVICE_FLAG_INT_RX)
{
/* enable rx irq */
USART_ITConfig(uart->uart_device, USART_IT_RXNE, ENABLE);
}
else if (irq_type == RT_DEVICE_FLAG_INT_TX)
{
/* enable tx irq */
USART_ITConfig(uart->uart_device, uart->tx_irq_type, ENABLE);
}
else if (irq_type == RT_NULL)
{
/* enable irq */
UART_ENABLE_IRQ(uart->irq);
}
break;
/* get interrupt flag */
case RT_DEVICE_CTRL_GET_INT:
if (irq_type == RT_DEVICE_FLAG_INT_RX)
{
/* return rx irq flag */
return USART_GetITStatus(uart->uart_device, USART_IT_RXNE);
}
else if (irq_type == RT_DEVICE_FLAG_INT_TX)
{
/* return tx irq flag */
return USART_GetITStatus(uart->uart_device, uart->tx_irq_type);
}
break;
/* get USART flag */
case RT_DEVICE_CTRL_GET_FLAG:
if (irq_type == RT_DEVICE_FLAG_INT_RX)
{
/* return rx irq flag */
return USART_GetFlagStatus(uart->uart_device, USART_FLAG_RXNE);
}
else if (irq_type == RT_DEVICE_FLAG_INT_TX)
{
/* return tx flag */
if (uart->tx_irq_type == USART_IT_TC)
{
return USART_GetFlagStatus(uart->uart_device, USART_FLAG_TC);
}
else if (uart->tx_irq_type == USART_IT_TXE)
{
return USART_GetFlagStatus(uart->uart_device, USART_FLAG_TXE);
}
}
break;
}
return RT_EOK;
}