re-format the coding style in serial.c

1, Tabs to Spaces
2, File Format(CR/LF) using UNIX style
3, maximum line length = 80

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2281 bbd45198-f89e-11dd-88c7-29a3b14d5316

components/drivers/serial/serial.c

@@ -25,7 +25,8 @@ rt_inline void serial_ringbuffer_init(struct serial_ringbuffer *rbuffer)
     rbuffer->get_index = 0;
 }
 
-rt_inline void serial_ringbuffer_putc(struct serial_ringbuffer *rbuffer, char ch)
+rt_inline void serial_ringbuffer_putc(struct serial_ringbuffer *rbuffer,
+                                      char                      ch)
 {
     rt_base_t level;
 
@@ -45,7 +46,8 @@ rt_inline void serial_ringbuffer_putc(struct serial_ringbuffer *rbuffer, char ch
     rt_hw_interrupt_enable(level);
 }
 
-rt_inline int serial_ringbuffer_putchar(struct serial_ringbuffer *rbuffer, char ch)
+rt_inline int serial_ringbuffer_putchar(struct serial_ringbuffer *rbuffer,
+                                        char                      ch)
 {
     rt_base_t level;
     rt_uint16_t next_index;
@@ -63,11 +65,13 @@ rt_inline int serial_ringbuffer_putchar(struct serial_ringbuffer *rbuffer, char
     {
         /* enable interrupt */
         rt_hw_interrupt_enable(level);
+
         return -1;
     }
 
     /* enable interrupt */
     rt_hw_interrupt_enable(level);
+
     return 1;
 }
 
@@ -86,6 +90,7 @@ rt_inline int serial_ringbuffer_getc(struct serial_ringbuffer *rbuffer)
     }
     /* enable interrupt */
     rt_hw_interrupt_enable(level);
+
     return ch;
 }
 
@@ -178,7 +183,10 @@ static rt_err_t rt_serial_close(struct rt_device *dev)
     return RT_EOK;
 }
 
-static rt_size_t rt_serial_read(struct rt_device *dev, rt_off_t pos, void *buffer, rt_size_t size)
+static rt_size_t rt_serial_read(struct rt_device *dev,
+                                rt_off_t          pos,
+                                void             *buffer,
+                                rt_size_t         size)
 {
     rt_uint8_t *ptr;
     rt_uint32_t read_nbytes;
@@ -225,8 +233,10 @@ static rt_size_t rt_serial_read(struct rt_device *dev, rt_off_t pos, void *buffe
     return read_nbytes;
 }
 
-static rt_size_t rt_serial_write(struct rt_device *dev, rt_off_t pos,
-                                 const void *buffer, rt_size_t size)
+static rt_size_t rt_serial_write(struct rt_device *dev,
+                                 rt_off_t          pos,
+                                 const void       *buffer,
+                                 rt_size_t         size)
 {
     rt_uint8_t *ptr;
     rt_size_t write_nbytes = 0;
@@ -267,8 +277,8 @@ static rt_size_t rt_serial_write(struct rt_device *dev, rt_off_t pos,
 
             serial->ops->putc(serial, *ptr);
 
-			++ptr;
-			--size;
+            ++ ptr;
+            -- size;
         }
     }
 
@@ -281,7 +291,9 @@ static rt_size_t rt_serial_write(struct rt_device *dev, rt_off_t pos,
     return write_nbytes;
 }
 
-static rt_err_t rt_serial_control(struct rt_device *dev, rt_uint8_t cmd, void *args)
+static rt_err_t rt_serial_control(struct rt_device *dev,
+                                  rt_uint8_t        cmd,
+                                  void             *args)
 {
     struct rt_serial_device *serial;
 
@@ -312,7 +324,10 @@ static rt_err_t rt_serial_control(struct rt_device *dev, rt_uint8_t cmd, void *a
 /*
  * serial register
  */
-rt_err_t rt_hw_serial_register(struct rt_serial_device *serial, const char *name, rt_uint32_t flag, void *data)
+rt_err_t rt_hw_serial_register(struct rt_serial_device *serial,
+                               const char              *name,
+                               rt_uint32_t              flag,
+                               void                    *data)
 {
     struct rt_device *device;
     RT_ASSERT(serial != RT_NULL);