1 files changed, 71 insertions, 71 deletions

diff --git a/bsp/tm4c129x/drivers/drv_uart.c b/bsp/tm4c129x/drivers/drv_uart.c
index 4b7ca48e6e..d1b26f3002 100644
--- a/bsp/tm4c129x/drivers/drv_uart.c
+++ b/bsp/tm4c129x/drivers/drv_uart.c
@@ -30,75 +30,75 @@ typedef struct hw_uart_device
 #define mUartGetHwPtr(serial) ((hw_uart_t*)(serial->parent.user_data))
 
 static rt_err_t hw_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
-{	
-	uint32_t config = 0;
-	hw_uart_t* uart;
+{
+    uint32_t config = 0;
+    hw_uart_t* uart;
     RT_ASSERT(serial != RT_NULL);
     uart = mUartGetHwPtr(serial);
 
-	MAP_UARTDisable(uart->hw_base);
-	// build UART Configuration parameter structure
+    MAP_UARTDisable(uart->hw_base);
+    // build UART Configuration parameter structure
     switch(cfg->data_bits)
-	{
-	case DATA_BITS_9:
-		// enable 9bit address mode and set DATA_BIT_8
-		MAP_UART9BitEnable(uart->hw_base);
-	case DATA_BITS_8:
-		config |= UART_CONFIG_WLEN_8;
-		break;
-	case DATA_BITS_7:
-		config |= UART_CONFIG_WLEN_7;
-		break;
-	case DATA_BITS_6:
-		config |= UART_CONFIG_WLEN_6;
-		break;
-	case DATA_BITS_5:
-		config |= UART_CONFIG_WLEN_5;
-		break;
-	default:
-		RT_ASSERT(0);
-		break;
-	}
-	switch(cfg->parity)
-	{
-	case PARITY_ODD:
-		config |= UART_CONFIG_PAR_ODD;
-		break;
-	case PARITY_EVEN:
-		config |= UART_CONFIG_PAR_EVEN;
-		break;
-	case PARITY_NONE:
-		config |= UART_CONFIG_PAR_NONE;
-		break;
-	default:
-		RT_ASSERT(0);
-		break;
-	}
-	switch(cfg->stop_bits)
-	{
-	case STOP_BITS_1:
-		config |= UART_CONFIG_STOP_ONE;
-		break;
-	case STOP_BITS_2:
-		config |= UART_CONFIG_STOP_TWO;
-		break;
-	default:
-		RT_ASSERT(0);
-		break;
-	}
-	
-	// Initialize UART0 peripheral with given to corresponding parameter
+    {
+    case DATA_BITS_9:
+        // enable 9bit address mode and set DATA_BIT_8
+        MAP_UART9BitEnable(uart->hw_base);
+    case DATA_BITS_8:
+        config |= UART_CONFIG_WLEN_8;
+        break;
+    case DATA_BITS_7:
+        config |= UART_CONFIG_WLEN_7;
+        break;
+    case DATA_BITS_6:
+        config |= UART_CONFIG_WLEN_6;
+        break;
+    case DATA_BITS_5:
+        config |= UART_CONFIG_WLEN_5;
+        break;
+    default:
+        RT_ASSERT(0);
+        break;
+    }
+    switch(cfg->parity)
+    {
+    case PARITY_ODD:
+        config |= UART_CONFIG_PAR_ODD;
+        break;
+    case PARITY_EVEN:
+        config |= UART_CONFIG_PAR_EVEN;
+        break;
+    case PARITY_NONE:
+        config |= UART_CONFIG_PAR_NONE;
+        break;
+    default:
+        RT_ASSERT(0);
+        break;
+    }
+    switch(cfg->stop_bits)
+    {
+    case STOP_BITS_1:
+        config |= UART_CONFIG_STOP_ONE;
+        break;
+    case STOP_BITS_2:
+        config |= UART_CONFIG_STOP_TWO;
+        break;
+    default:
+        RT_ASSERT(0);
+        break;
+    }
+
+    // Initialize UART0 peripheral with given to corresponding parameter
     MAP_UARTConfigSetExpClk(uart->hw_base, SystemCoreClock, cfg->baud_rate, config);
-	MAP_UARTFIFOEnable(uart->hw_base);
+    MAP_UARTFIFOEnable(uart->hw_base);
 
-	// Enable the UART.
-	MAP_UARTEnable(uart->hw_base);
+    // Enable the UART.
+    MAP_UARTEnable(uart->hw_base);
     return RT_EOK;
 }
 
 static rt_err_t hw_control(struct rt_serial_device *serial, int cmd, void *arg)
 {
-	hw_uart_t* uart;
+    hw_uart_t* uart;
     RT_ASSERT(serial != RT_NULL);
     uart = mUartGetHwPtr(serial);
 
@@ -119,21 +119,21 @@ static rt_err_t hw_control(struct rt_serial_device *serial, int cmd, void *arg)
 
 static int hw_putc(struct rt_serial_device *serial, char c)
 {
-	hw_uart_t* uart;
+    hw_uart_t* uart;
     RT_ASSERT(serial != RT_NULL);
     uart = mUartGetHwPtr(serial);
-	
+
     MAP_UARTCharPut(uart->hw_base, *((uint8_t *)&c));
     return 1;
 }
 
 static int hw_getc(struct rt_serial_device *serial)
 {
-	hw_uart_t* uart;
+    hw_uart_t* uart;
     RT_ASSERT(serial != RT_NULL);
     uart = mUartGetHwPtr(serial);
-	
-	return MAP_UARTCharGetNonBlocking(uart->hw_base);
+
+    return MAP_UARTCharGetNonBlocking(uart->hw_base);
 }
 
 static const struct rt_uart_ops hw_uart_ops =
@@ -154,7 +154,7 @@ hw_uart_t uart0 =
 
 void UART0_IRQHandler(void)
 {
-	uint32_t intsrc;
+    uint32_t intsrc;
     hw_uart_t *uart = &uart0;
 
     /* enter interrupt */
@@ -169,7 +169,7 @@ void UART0_IRQHandler(void)
         MAP_UARTIntClear(uart->hw_base, intsrc);
         rt_hw_serial_isr(&serial0, RT_SERIAL_EVENT_RX_IND);
     }
-		
+
     /* leave interrupt */
     rt_interrupt_leave();
 }
@@ -187,7 +187,7 @@ int rt_hw_uart_init(void)
     config.stop_bits = STOP_BITS_1;
     config.invert    = NRZ_NORMAL;
     config.bufsz     = RT_SERIAL_RB_BUFSZ;
-	
+
 #ifdef RT_USING_UART0
     uart = &uart0;
     serial0.ops    = &hw_uart_ops;
@@ -196,7 +196,7 @@ int rt_hw_uart_init(void)
     MAP_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
     MAP_GPIOPinConfigure(GPIO_PA0_U0RX);
     MAP_GPIOPinConfigure(GPIO_PA1_U0TX);
-	
+
     MAP_GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);
     MAP_SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
 
@@ -204,15 +204,15 @@ int rt_hw_uart_init(void)
     //IntPrioritySet(INT_UART0, ((0x01 << 5) | 0x01));
 
     /* Enable Interrupt for UART channel */
-	  UARTIntRegister(uart->hw_base, UART0_IRQHandler);
-	  MAP_IntEnable(INT_UART0);
-	  MAP_UARTEnable(uart->hw_base);
+      UARTIntRegister(uart->hw_base, UART0_IRQHandler);
+      MAP_IntEnable(INT_UART0);
+      MAP_UARTEnable(uart->hw_base);
 
     /* register UART0 device */
     rt_hw_serial_register(&serial0, "uart0",
                           RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
                           uart);
 #endif
-	return 0;
+    return 0;
 }
 INIT_BOARD_EXPORT(rt_hw_uart_init);