Merge pull request #4450 from mysterywolf/x86

[x86][drivers] auto formatted

11 files changed, 691 insertions, 691 deletions

diff --git a/bsp/x86/drivers/console.c b/bsp/x86/drivers/console.c
index b783872bae..4fe1daeeed 100644
--- a/bsp/x86/drivers/console.c
+++ b/bsp/x86/drivers/console.c
@@ -87,7 +87,7 @@ static void rt_cga_putc(int c)
         break;
     case '\n':
         crt_pos += CRT_COLS;
-        /* cascade	*/
+        /* cascade  */
     case '\r':
         crt_pos -= (crt_pos % CRT_COLS);
         break;
@@ -99,7 +99,7 @@ static void rt_cga_putc(int c)
         rt_console_putc(' ');
         break;
     default:
-        crt_buf[crt_pos++] = c;		/* write the character */
+        crt_buf[crt_pos++] = c;     /* write the character */
         break;
     }
 
@@ -289,14 +289,14 @@ int rt_hw_console_init(void)
     rt_hw_interrupt_install(INTUART0_RX, rt_console_isr, RT_NULL, "COM1");
     rt_hw_interrupt_umask(INTUART0_RX);
 
-    console_device.type 		= RT_Device_Class_Char;
+    console_device.type         = RT_Device_Class_Char;
     console_device.rx_indicate  = RT_NULL;
     console_device.tx_complete  = RT_NULL;
-    console_device.init 		= rt_console_init;
-    console_device.open		    = rt_console_open;
-    console_device.close		= rt_console_close;
-    console_device.read 		= rt_console_read;
-    console_device.write 	    = rt_console_write;
+    console_device.init         = rt_console_init;
+    console_device.open         = rt_console_open;
+    console_device.close        = rt_console_close;
+    console_device.read         = rt_console_read;
+    console_device.write        = rt_console_write;
     console_device.control      = rt_console_control;
     console_device.user_data    = RT_NULL;
 
@@ -316,8 +316,8 @@ INIT_DEVICE_EXPORT(rt_hw_console_init);
  * @param str the displayed string
  *
  * Modified:
- *	caoxl 2009-10-14
- *	the name is change to rt_hw_console_output in the v0.3.0
+ *  caoxl 2009-10-14
+ *  the name is change to rt_hw_console_output in the v0.3.0
  *
  */
 void rt_hw_console_output(const char* str)
diff --git a/bsp/x86/drivers/dma.h b/bsp/x86/drivers/dma.h
index 3e5e9b08d1..9b87a309bb 100644
--- a/bsp/x86/drivers/dma.h
+++ b/bsp/x86/drivers/dma.h
@@ -101,7 +101,7 @@ static __inline__ void ClearDmaFF(unsigned int dmanr)
         OUTB(0,  DMA2_CLEAR_FF_REG);
 }
 
-/* 
+/*
  * 清空DMA 晶体计数器
  */
 static __inline__ void SetDmaMode(unsigned int dmanr, char mode)
diff --git a/bsp/x86/drivers/floppy.c b/bsp/x86/drivers/floppy.c
index f4675b9194..c144eb02eb 100644
--- a/bsp/x86/drivers/floppy.c
+++ b/bsp/x86/drivers/floppy.c
@@ -31,7 +31,7 @@ typedef rt_int32_t s32;
 
 static u8 floppy_buffer[512];                       /* 软盘高速缓冲区地址指针 */
 
-#define MAX_REPLIES 7                                                             
+#define MAX_REPLIES 7
 static u8 floppy_reply_buffer[MAX_REPLIES];         /* 软驱回应缓冲区 */
 #define ST0 (floppy_reply_buffer[0])                /* 软驱回应0号字节 */
 #define ST1 (floppy_reply_buffer[1])                /* 软驱回应1号字节 */
@@ -114,7 +114,7 @@ u32 floppy_get_info(void)
     u8 CmType, FdType;
 
     floppy_sendbyte(0x10);
-    i = floppy_getbyte(); 
+    i = floppy_getbyte();
 
     switch (i)
     {
@@ -180,7 +180,7 @@ void floppy_motorOff( void )
 
 
 void floppy_setmode(void)
-{   
+{
     floppy_sendbyte (FD_SPECIFY);
     floppy_sendbyte (0xcf);
     floppy_sendbyte (0x06);
@@ -197,7 +197,7 @@ void block_to_hts(u32 block, u32 *head, u32 *track, u32 *sector )
 
 
 void floppy_setupDMA(void)
-{  
+{
     u32 eflags;
     _local_irq_save(eflags);
     DisableDma(2);
@@ -235,7 +235,7 @@ void floppy_read_cmd(u32 blk)
     floppy_sendbyte (18);
     //floppy_sendbyte (sector+secs-1);          /*  Last sector in track:here are  sectors count */
     floppy_sendbyte (0x1B);
-    floppy_sendbyte (0xff);                      
+    floppy_sendbyte (0xff);
     return;
 }
 
@@ -282,12 +282,12 @@ static rt_size_t rt_floppy_read(rt_device_t device, rt_off_t position, void *buf
         {
             panic("ST0 %d ST1 %d ST2 %d\n",ST0,ST1,ST2);
         }
-    
+
         rt_memcpy(buffer, floppy_buffer, 512);
 
         floppy_motorOff();
         io_delay();
-        
+
         position += 1;
         size     -= 1;
     }
diff --git a/bsp/x86/drivers/include/bsp.h b/bsp/x86/drivers/include/bsp.h
index 93e409dbfa..fecb884ee8 100644
--- a/bsp/x86/drivers/include/bsp.h
+++ b/bsp/x86/drivers/include/bsp.h
@@ -15,127 +15,127 @@
 #ifdef __cplusplus
 extern "C" {
 #endif
- 
+
 /*******************************************************************/
 /*  Timer Register  */
 /*******************************************************************/
-#define TIMER_CNTR0			(IO_TIMER1 + 0)	/* timer 0 counter port */
-#define TIMER_CNTR1			(IO_TIMER1 + 1)	/* timer 1 counter port */
-#define TIMER_CNTR2			(IO_TIMER1 + 2)	/* timer 2 counter port */
-#define TIMER_MODE			(IO_TIMER1 + 3)	/* timer mode port */
-#define TIMER_SEL0			0x00	/* select counter 0 */
-#define TIMER_SEL1			0x40	/* select counter 1 */
-#define TIMER_INTTC			0x00	/* mode 0, intr on terminal cnt */
-#define TIMER_ONESHOT		0x02	/* mode 1, one shot */
-#define TIMER_RATEGEN		0x04	/* mode 2, rate generator */
-#define TIMER_SQWAVE		0x06	/* mode 3, square wave */
-#define TIMER_SWSTROBE		0x08	/* mode 4, s/w triggered strobe */
-#define TIMER_HWSTROBE		0x0a	/* mode 5, h/w triggered strobe */
-#define TIMER_LATCH			0x00	/* latch counter for reading */
-#define TIMER_LSB			0x10	/* r/w counter LSB */
-#define TIMER_MSB			0x20	/* r/w counter MSB */
-#define TIMER_16BIT			0x30	/* r/w counter 16 bits, LSB first */
-#define TIMER_BCD			0x01	/* count in BCD */
+#define TIMER_CNTR0         (IO_TIMER1 + 0) /* timer 0 counter port */
+#define TIMER_CNTR1         (IO_TIMER1 + 1) /* timer 1 counter port */
+#define TIMER_CNTR2         (IO_TIMER1 + 2) /* timer 2 counter port */
+#define TIMER_MODE          (IO_TIMER1 + 3) /* timer mode port */
+#define TIMER_SEL0          0x00    /* select counter 0 */
+#define TIMER_SEL1          0x40    /* select counter 1 */
+#define TIMER_INTTC         0x00    /* mode 0, intr on terminal cnt */
+#define TIMER_ONESHOT       0x02    /* mode 1, one shot */
+#define TIMER_RATEGEN       0x04    /* mode 2, rate generator */
+#define TIMER_SQWAVE        0x06    /* mode 3, square wave */
+#define TIMER_SWSTROBE      0x08    /* mode 4, s/w triggered strobe */
+#define TIMER_HWSTROBE      0x0a    /* mode 5, h/w triggered strobe */
+#define TIMER_LATCH         0x00    /* latch counter for reading */
+#define TIMER_LSB           0x10    /* r/w counter LSB */
+#define TIMER_MSB           0x20    /* r/w counter MSB */
+#define TIMER_16BIT         0x30    /* r/w counter 16 bits, LSB first */
+#define TIMER_BCD           0x01    /* count in BCD */
 
-#define TIMER_FREQ			1193182
-#define TIMER_DIV(x)		((TIMER_FREQ+(x)/2)/(x))
+#define TIMER_FREQ          1193182
+#define TIMER_DIV(x)        ((TIMER_FREQ+(x)/2)/(x))
 
-#define IO_TIMER1			0x040	/* 8253 Timer #1 */
+#define IO_TIMER1           0x040   /* 8253 Timer #1 */
 
 /*******************************************************************/
 /* Interrupt Controller */
 /*******************************************************************/
 /* these are processor defined */
-#define T_DIVIDE			0		/* divide error */
-#define T_DEBUG	 			1		/* debug exception */
-#define T_NMI				2		/* non-maskable interrupt */
-#define T_BRKPT	 			3		/* breakpoint */
-#define T_OFLOW				4		/* overflow */
-#define T_BOUND	  			5		/* bounds check */
-#define T_ILLOP	  			6		/* illegal opcode */
-#define T_DEVICE	 		7		/* device not available */
-#define T_DBLFLT	 		8		/* double fault */
+#define T_DIVIDE            0       /* divide error */
+#define T_DEBUG             1       /* debug exception */
+#define T_NMI               2       /* non-maskable interrupt */
+#define T_BRKPT             3       /* breakpoint */
+#define T_OFLOW             4       /* overflow */
+#define T_BOUND             5       /* bounds check */
+#define T_ILLOP             6       /* illegal opcode */
+#define T_DEVICE            7       /* device not available */
+#define T_DBLFLT            8       /* double fault */
 /* 9 is reserved */
-#define T_TSS			10		/* invalid task switch segment */
-#define T_SEGNP			11		/* segment not present */
-#define T_STACK	 		12		/* stack exception */
-#define T_GPFLT			13		/* genernal protection fault */
-#define T_PGFLT			14		/* page fault */
+#define T_TSS           10      /* invalid task switch segment */
+#define T_SEGNP         11      /* segment not present */
+#define T_STACK         12      /* stack exception */
+#define T_GPFLT         13      /* genernal protection fault */
+#define T_PGFLT         14      /* page fault */
 /* 15 is reserved */
-#define T_FPERR	 		16		/* floating point error */
-#define T_ALIGN			17		/* aligment check */
-#define T_MCHK			18		/* machine check */
-#define T_DEFAULT		500		/* catchall */
+#define T_FPERR         16      /* floating point error */
+#define T_ALIGN         17      /* aligment check */
+#define T_MCHK          18      /* machine check */
+#define T_DEFAULT       500     /* catchall */
 
-#define INTTIMER0		0
-#define INTKEYBOARD		1
-#define INTUART0_RX		4
-#define	CLOCK_IRQ		0
-#define	KEYBOARD_IRQ	1
-#define	CASCADE_IRQ		2	/* cascade enable for 2nd AT controller */
-#define	ETHER_IRQ		3	/* default ethernet interrupt vector */
-#define	SECONDARY_IRQ	3	/* RS232 interrupt vector for port 2 */
-#define	RS232_IRQ		4	/* RS232 interrupt vector for port 1 */
-#define	XT_WINI_IRQ		5	/* xt winchester */
-#define	FLOPPY_IRQ		6	/* floppy disk */
-#define	PRINTER_IRQ		7
-#define	AT_WINI_IRQ		14	/* at winchester */
+#define INTTIMER0       0
+#define INTKEYBOARD     1
+#define INTUART0_RX     4
+#define CLOCK_IRQ       0
+#define KEYBOARD_IRQ    1
+#define CASCADE_IRQ     2   /* cascade enable for 2nd AT controller */
+#define ETHER_IRQ       3   /* default ethernet interrupt vector */
+#define SECONDARY_IRQ   3   /* RS232 interrupt vector for port 2 */
+#define RS232_IRQ       4   /* RS232 interrupt vector for port 1 */
+#define XT_WINI_IRQ     5   /* xt winchester */
+#define FLOPPY_IRQ      6   /* floppy disk */
+#define PRINTER_IRQ     7
+#define AT_WINI_IRQ     14  /* at winchester */
 /* I/O Addresses of the two 8259A programmable interrupt controllers */
-#define IO_PIC1 		0x20 	/* Master(IRQs 0-7) */
-#define IO_PIC2 		0xa0	/* Slave(IRQs 8-15) */
-#define IRQ_SLAVE 		0x2		/* IRQ at which slave connects to master */
-#define IRQ_OFFSET 		0x20	/* IRQ 0 corresponds to int IRQ_OFFSET */
+#define IO_PIC1         0x20    /* Master(IRQs 0-7) */
+#define IO_PIC2         0xa0    /* Slave(IRQs 8-15) */
+#define IRQ_SLAVE       0x2     /* IRQ at which slave connects to master */
+#define IRQ_OFFSET      0x20    /* IRQ 0 corresponds to int IRQ_OFFSET */
 
-#define MAX_HANDLERS	16		/*max number of isr handler*/
+#define MAX_HANDLERS    16      /*max number of isr handler*/
 
 /*******************************************************************/
 /* CRT Register */
 /*******************************************************************/
-#define MONO_BASE		0x3b4
-#define MONO_BUF		0xb0000
-#define CGA_BASE		0x3d4
-#define CGA_BUF			0xb8000
+#define MONO_BASE       0x3b4
+#define MONO_BUF        0xb0000
+#define CGA_BASE        0x3d4
+#define CGA_BUF         0xb8000
 
-#define CRT_ROWS		25
-#define CRT_COLS		80
-#define CRT_SIZE		(CRT_ROWS * CRT_COLS)
+#define CRT_ROWS        25
+#define CRT_COLS        80
+#define CRT_SIZE        (CRT_ROWS * CRT_COLS)
 
 /*******************************************************************/
 /* Keyboard Register */
 /*******************************************************************/
-#define	KBSTATP			0x64	/* kbd controller status port(I) */
-#define	KBS_DIB			0x01	/* kbd data in buffer */
-#define	KBDATAP			0x60	/* kbd data port(I) */
+#define KBSTATP         0x64    /* kbd controller status port(I) */
+#define KBS_DIB         0x01    /* kbd data in buffer */
+#define KBDATAP         0x60    /* kbd data port(I) */
 /* AT keyboard */
 /* 8042 ports */
-#define	KB_DATA			0x60	/* I/O port for keyboard data
-                                 * Read : Read Output Buffer 
+#define KB_DATA         0x60    /* I/O port for keyboard data
+                                 * Read : Read Output Buffer
                                  * Write: Write Input Buffer(8042 Data&8048 Command) */
-#define	KB_CMD			0x64	/* I/O port for keyboard command
+#define KB_CMD          0x64    /* I/O port for keyboard command
                                  * Read : Read Status Register
                                  * Write: Write Input Buffer(8042 Command) */
-#define	LED_CODE		0xED
-#define	KB_ACK			0xFA
+#define LED_CODE        0xED
+#define KB_ACK          0xFA
 
 /*******************************************************************/
 /* Serial Register */
 /*******************************************************************/
 /*Serial I/O code */
-#define COM1			0x3F8
-#define COMSTATUS		5
-#define COMDATA			0x01
-#define COMREAD			0
-#define COMWRITE		0
+#define COM1            0x3F8
+#define COMSTATUS       5
+#define COMDATA         0x01
+#define COMREAD         0
+#define COMWRITE        0
 
 /* Bits definition of the Line Status Register (LSR)*/
-#define DR				0x01	/* Data Ready */
-#define OE				0x02	/* Overrun Error */
-#define PE				0x04	/* Parity Error */
-#define FE				0x08	/* Framing Error */
-#define BI				0x10	/* Break Interrupt */
-#define THRE			0x20	/* Transmitter Holding Register Empty */
-#define TEMT			0x40	/* Transmitter Empty */
-#define ERFIFO			0x80	/* Error receive Fifo */
+#define DR              0x01    /* Data Ready */
+#define OE              0x02    /* Overrun Error */
+#define PE              0x04    /* Parity Error */
+#define FE              0x08    /* Framing Error */
+#define BI              0x10    /* Break Interrupt */
+#define THRE            0x20    /* Transmitter Holding Register Empty */
+#define TEMT            0x40    /* Transmitter Empty */
+#define ERFIFO          0x80    /* Error receive Fifo */
 
 #ifdef __cplusplus
 }
diff --git a/bsp/x86/drivers/include/grub.h b/bsp/x86/drivers/include/grub.h
index d5a84a48da..96d4533c3f 100644
--- a/bsp/x86/drivers/include/grub.h
+++ b/bsp/x86/drivers/include/grub.h
@@ -5,7 +5,7 @@
  *
  * Change Logs:
  * Date           Author       Notes
- * 2006-10-09     Bernard      the grub related definitions 
+ * 2006-10-09     Bernard      the grub related definitions
  *                             (multiboot)
  */
 
@@ -13,13 +13,13 @@
 #define __GRUB_H__
 
 /* the magic number for the multiboot header.  */
-#define MULTIBOOT_HEADER_MAGIC		0x1BADB002
+#define MULTIBOOT_HEADER_MAGIC      0x1BADB002
 
 /* the flags for the multiboot header.  */
-#define MULTIBOOT_HEADER_FLAGS		0x00000003
+#define MULTIBOOT_HEADER_FLAGS      0x00000003
 
 /* the magic number passed by a multiboot-compliant boot loader.  */
-#define MULTIBOOT_BOOTLOADER_MAGIC	0x2BADB002
+#define MULTIBOOT_BOOTLOADER_MAGIC  0x2BADB002
 
 #ifndef __ASM__
 /* the multiboot header.  */
diff --git a/bsp/x86/drivers/include/i386.h b/bsp/x86/drivers/include/i386.h
index bde4a95c3b..7d002393e7 100644
--- a/bsp/x86/drivers/include/i386.h
+++ b/bsp/x86/drivers/include/i386.h
@@ -44,9 +44,9 @@ static __inline unsigned int inl(int port)
 
 static __inline void insl(int port, void *addr, int cnt)
 {
-    __asm __volatile("cld\n\trepne\n\tinsl"			:
-             "=D" (addr), "=c" (cnt)		:
-             "d" (port), "0" (addr), "1" (cnt)	:
+    __asm __volatile("cld\n\trepne\n\tinsl"         :
+             "=D" (addr), "=c" (cnt)        :
+             "d" (port), "0" (addr), "1" (cnt)  :
              "memory", "cc");
 }
 
diff --git a/bsp/x86/drivers/keyboard.c b/bsp/x86/drivers/keyboard.c
index b4ae626261..4890db380b 100644
--- a/bsp/x86/drivers/keyboard.c
+++ b/bsp/x86/drivers/keyboard.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -19,290 +19,290 @@
 #define FALSE RT_FALSE
 #define TRUE  RT_TRUE
 #define PRIVATE static
-#define PUBLIC 
+#define PUBLIC
 #define t_bool  rt_bool_t
 #define t_8     rt_uint8_t
 #define t_32    rt_uint32_t
 
-PRIVATE	KB_INPUT	kb_in;
-PRIVATE	t_bool		code_with_E0	= FALSE;
-PRIVATE	t_bool		shift_l;		/* l shift state	*/
-PRIVATE	t_bool		shift_r;		/* r shift state	*/
-PRIVATE	t_bool		alt_l;			/* l alt state		*/
-PRIVATE	t_bool		alt_r;			/* r left state		*/
-PRIVATE	t_bool		ctrl_l;			/* l ctrl state		*/
-PRIVATE	t_bool		ctrl_r;			/* l ctrl state		*/
-PRIVATE	t_bool		caps_lock;		/* Caps Lock		*/
-PRIVATE	t_bool		num_lock;		/* Num Lock		*/
-PRIVATE	t_bool		scroll_lock;		/* Scroll Lock		*/
-PRIVATE	int		column		= 0;	/* keyrow[column] is one value of keymap */
+PRIVATE KB_INPUT    kb_in;
+PRIVATE t_bool      code_with_E0    = FALSE;
+PRIVATE t_bool      shift_l;        /* l shift state    */
+PRIVATE t_bool      shift_r;        /* r shift state    */
+PRIVATE t_bool      alt_l;          /* l alt state      */
+PRIVATE t_bool      alt_r;          /* r left state     */
+PRIVATE t_bool      ctrl_l;         /* l ctrl state     */
+PRIVATE t_bool      ctrl_r;         /* l ctrl state     */
+PRIVATE t_bool      caps_lock;      /* Caps Lock        */
+PRIVATE t_bool      num_lock;       /* Num Lock     */
+PRIVATE t_bool      scroll_lock;        /* Scroll Lock      */
+PRIVATE int     column      = 0;    /* keyrow[column] is one value of keymap */
 
-PRIVATE t_8	get_byte_from_kb_buf();
-PRIVATE void	set_leds();
-PRIVATE void	kb_wait();
-PRIVATE void	kb_ack();
+PRIVATE t_8 get_byte_from_kb_buf();
+PRIVATE void    set_leds();
+PRIVATE void    kb_wait();
+PRIVATE void    kb_ack();
 
 PUBLIC void init_keyboard()
 {
-	kb_in.count = 0;
-	kb_in.p_head = kb_in.p_tail = kb_in.buf;
+    kb_in.count = 0;
+    kb_in.p_head = kb_in.p_tail = kb_in.buf;
 
-	caps_lock	= 0;
-	num_lock	= 1;
-	scroll_lock	= 0;
+    caps_lock   = 0;
+    num_lock    = 1;
+    scroll_lock = 0;
 
-	set_leds();
+    set_leds();
 }
 PUBLIC rt_bool_t keyboard_read(rt_uint32_t *pkey)
 {
-	t_8	scan_code;
-	t_bool	make;	/* TRUE : make  */
-			/* FALSE: break */
-	t_32	key = 0;
-	t_32*	keyrow;
+    t_8 scan_code;
+    t_bool  make;   /* TRUE : make  */
+            /* FALSE: break */
+    t_32    key = 0;
+    t_32*   keyrow;
 
-	if(kb_in.count > 0){
-		code_with_E0 = FALSE;
-		scan_code = get_byte_from_kb_buf();
+    if(kb_in.count > 0){
+        code_with_E0 = FALSE;
+        scan_code = get_byte_from_kb_buf();
 
-		/* start scan */
-		if (scan_code == 0xE1) {
-			int i;
-			static const t_8 pausebreak_scan_code[] = {0xE1, 0x1D, 0x45, 0xE1, 0x9D, 0xC5};
-			t_bool is_pausebreak = TRUE;
-			for(i=1;i<6;i++){
-				if (get_byte_from_kb_buf() != pausebreak_scan_code[i]) {
-					is_pausebreak = FALSE;
-					break;
-				}
-			}
-			if (is_pausebreak) {
-				key = PAUSEBREAK;
-			}
-		}
-		else if (scan_code == 0xE0) {
-			code_with_E0 = TRUE;
-			scan_code = get_byte_from_kb_buf();
+        /* start scan */
+        if (scan_code == 0xE1) {
+            int i;
+            static const t_8 pausebreak_scan_code[] = {0xE1, 0x1D, 0x45, 0xE1, 0x9D, 0xC5};
+            t_bool is_pausebreak = TRUE;
+            for(i=1;i<6;i++){
+                if (get_byte_from_kb_buf() != pausebreak_scan_code[i]) {
+                    is_pausebreak = FALSE;
+                    break;
+                }
+            }
+            if (is_pausebreak) {
+                key = PAUSEBREAK;
+            }
+        }
+        else if (scan_code == 0xE0) {
+            code_with_E0 = TRUE;
+            scan_code = get_byte_from_kb_buf();
 
-			/* PrintScreen pressed */
-			if (scan_code == 0x2A) {
-				code_with_E0 = FALSE;
-				if ((scan_code = get_byte_from_kb_buf()) == 0xE0) {
-					code_with_E0 = TRUE;
-					if ((scan_code = get_byte_from_kb_buf()) == 0x37) {
-						key = PRINTSCREEN;
-						make = TRUE;
-					}
-				}
-			}
-			/* PrintScreen released */
-			else if (scan_code == 0xB7) {
-				code_with_E0 = FALSE;
-				if ((scan_code = get_byte_from_kb_buf()) == 0xE0) {
-					code_with_E0 = TRUE;
-					if ((scan_code = get_byte_from_kb_buf()) == 0xAA) {
-						key = PRINTSCREEN;
-						make = FALSE;
-					}
-				}
-			}
-		} /* if is not PrintScreen, scan_code is the one after 0xE0 */
-		if ((key != PAUSEBREAK) && (key != PRINTSCREEN)) {
-			/* is Make Code or Break Code */
-			make = (scan_code & FLAG_BREAK ? FALSE : TRUE);
-			
-			keyrow = &keymap[(scan_code & 0x7F) * MAP_COLS];
+            /* PrintScreen pressed */
+            if (scan_code == 0x2A) {
+                code_with_E0 = FALSE;
+                if ((scan_code = get_byte_from_kb_buf()) == 0xE0) {
+                    code_with_E0 = TRUE;
+                    if ((scan_code = get_byte_from_kb_buf()) == 0x37) {
+                        key = PRINTSCREEN;
+                        make = TRUE;
+                    }
+                }
+            }
+            /* PrintScreen released */
+            else if (scan_code == 0xB7) {
+                code_with_E0 = FALSE;
+                if ((scan_code = get_byte_from_kb_buf()) == 0xE0) {
+                    code_with_E0 = TRUE;
+                    if ((scan_code = get_byte_from_kb_buf()) == 0xAA) {
+                        key = PRINTSCREEN;
+                        make = FALSE;
+                    }
+                }
+            }
+        } /* if is not PrintScreen, scan_code is the one after 0xE0 */
+        if ((key != PAUSEBREAK) && (key != PRINTSCREEN)) {
+            /* is Make Code or Break Code */
+            make = (scan_code & FLAG_BREAK ? FALSE : TRUE);
 
-			column = 0;
+            keyrow = &keymap[(scan_code & 0x7F) * MAP_COLS];
 
-			t_bool caps = shift_l || shift_r;
-			if (caps_lock) {
-				if ((keyrow[0] >= 'a') && (keyrow[0] <= 'z')){
-					caps = !caps;
-				}
-			}
-			if (caps) {
-				column = 1;
-			}
+            column = 0;
 
-			if (code_with_E0) {
-				column = 2;
-			}
+            t_bool caps = shift_l || shift_r;
+            if (caps_lock) {
+                if ((keyrow[0] >= 'a') && (keyrow[0] <= 'z')){
+                    caps = !caps;
+                }
+            }
+            if (caps) {
+                column = 1;
+            }
 
-			key = keyrow[column];
+            if (code_with_E0) {
+                column = 2;
+            }
 
-			switch(key) {
-			case SHIFT_L:
-				shift_l	= make;
-				break;
-			case SHIFT_R:
-				shift_r	= make;
-				break;
-			case CTRL_L:
-				ctrl_l	= make;
-				break;
-			case CTRL_R:
-				ctrl_r	= make;
-				break;
-			case ALT_L:
-				alt_l	= make;
-				break;
-			case ALT_R:
-				alt_l	= make;
-				break;
-			case CAPS_LOCK:
-				if (make) {
-					caps_lock   = !caps_lock;
-					set_leds();
-				}
-				break;
-			case NUM_LOCK:
-				if (make) {
-					num_lock    = !num_lock;
-					set_leds();
-				}
-				break;
-			case SCROLL_LOCK:
-				if (make) {
-					scroll_lock = !scroll_lock;
-					set_leds();
-				}
-				break;
-			default:
-				break;
-			}
-		}
+            key = keyrow[column];
 
-		if(make){ /* ignore Break Code */
-			t_bool pad = FALSE;
+            switch(key) {
+            case SHIFT_L:
+                shift_l = make;
+                break;
+            case SHIFT_R:
+                shift_r = make;
+                break;
+            case CTRL_L:
+                ctrl_l  = make;
+                break;
+            case CTRL_R:
+                ctrl_r  = make;
+                break;
+            case ALT_L:
+                alt_l   = make;
+                break;
+            case ALT_R:
+                alt_l   = make;
+                break;
+            case CAPS_LOCK:
+                if (make) {
+                    caps_lock   = !caps_lock;
+                    set_leds();
+                }
+                break;
+            case NUM_LOCK:
+                if (make) {
+                    num_lock    = !num_lock;
+                    set_leds();
+                }
+                break;
+            case SCROLL_LOCK:
+                if (make) {
+                    scroll_lock = !scroll_lock;
+                    set_leds();
+                }
+                break;
+            default:
+                break;
+            }
+        }
 
-			/* handle the small pad first */
-			if ((key >= PAD_SLASH) && (key <= PAD_9)) {
-				pad = TRUE;
-				switch(key) {	/* '/', '*', '-', '+', and 'Enter' in num pad  */
-				case PAD_SLASH:
-					key = '/';
-					break;
-				case PAD_STAR:
-					key = '*';
-					break;
-				case PAD_MINUS:
-					key = '-';
-					break;
-				case PAD_PLUS:
-					key = '+';
-					break;
-				case PAD_ENTER:
-					key = ENTER;
-					break;
-				default:	/* keys whose value depends on the NumLock */
-					if (num_lock) {	/* '0' ~ '9' and '.' in num pad */
-						if ((key >= PAD_0) && (key <= PAD_9)) {
-							key = key - PAD_0 + '0';
-						}
-						else if (key == PAD_DOT) {
-							key = '.';
-						}
-					}
-					else{
-						switch(key) {
-						case PAD_HOME:
-							key = HOME;
-							break;
-						case PAD_END:
-							key = END;
-							break;
-						case PAD_PAGEUP:
-							key = PAGEUP;
-							break;
-						case PAD_PAGEDOWN:
-							key = PAGEDOWN;
-							break;
-						case PAD_INS:
-							key = INSERT;
-							break;
-						case PAD_UP:
-							key = UP;
-							break;
-						case PAD_DOWN:
-							key = DOWN;
-							break;
-						case PAD_LEFT:
-							key = LEFT;
-							break;
-						case PAD_RIGHT:
-							key = RIGHT;
-							break;
-						case PAD_DOT:
-							key = DELETE;
-							break;
-						default:
-							break;
-						}
-					}
-					break;
-				}
-			}
-			key |= shift_l	? FLAG_SHIFT_L	: 0;
-			key |= shift_r	? FLAG_SHIFT_R	: 0;
-			key |= ctrl_l	? FLAG_CTRL_L	: 0;
-			key |= ctrl_r	? FLAG_CTRL_R	: 0;
-			key |= alt_l	? FLAG_ALT_L	: 0;
-			key |= alt_r	? FLAG_ALT_R	: 0;
-			key |= pad	? FLAG_PAD	: 0;
+        if(make){ /* ignore Break Code */
+            t_bool pad = FALSE;
 
-			*pkey = key;
-			return TRUE;
-		}
-	}
+            /* handle the small pad first */
+            if ((key >= PAD_SLASH) && (key <= PAD_9)) {
+                pad = TRUE;
+                switch(key) {   /* '/', '*', '-', '+', and 'Enter' in num pad  */
+                case PAD_SLASH:
+                    key = '/';
+                    break;
+                case PAD_STAR:
+                    key = '*';
+                    break;
+                case PAD_MINUS:
+                    key = '-';
+                    break;
+                case PAD_PLUS:
+                    key = '+';
+                    break;
+                case PAD_ENTER:
+                    key = ENTER;
+                    break;
+                default:    /* keys whose value depends on the NumLock */
+                    if (num_lock) { /* '0' ~ '9' and '.' in num pad */
+                        if ((key >= PAD_0) && (key <= PAD_9)) {
+                            key = key - PAD_0 + '0';
+                        }
+                        else if (key == PAD_DOT) {
+                            key = '.';
+                        }
+                    }
+                    else{
+                        switch(key) {
+                        case PAD_HOME:
+                            key = HOME;
+                            break;
+                        case PAD_END:
+                            key = END;
+                            break;
+                        case PAD_PAGEUP:
+                            key = PAGEUP;
+                            break;
+                        case PAD_PAGEDOWN:
+                            key = PAGEDOWN;
+                            break;
+                        case PAD_INS:
+                            key = INSERT;
+                            break;
+                        case PAD_UP:
+                            key = UP;
+                            break;
+                        case PAD_DOWN:
+                            key = DOWN;
+                            break;
+                        case PAD_LEFT:
+                            key = LEFT;
+                            break;
+                        case PAD_RIGHT:
+                            key = RIGHT;
+                            break;
+                        case PAD_DOT:
+                            key = DELETE;
+                            break;
+                        default:
+                            break;
+                        }
+                    }
+                    break;
+                }
+            }
+            key |= shift_l  ? FLAG_SHIFT_L  : 0;
+            key |= shift_r  ? FLAG_SHIFT_R  : 0;
+            key |= ctrl_l   ? FLAG_CTRL_L   : 0;
+            key |= ctrl_r   ? FLAG_CTRL_R   : 0;
+            key |= alt_l    ? FLAG_ALT_L    : 0;
+            key |= alt_r    ? FLAG_ALT_R    : 0;
+            key |= pad  ? FLAG_PAD  : 0;
 
-	return FALSE;
+            *pkey = key;
+            return TRUE;
+        }
+    }
+
+    return FALSE;
 }
 
 PRIVATE t_8 get_byte_from_kb_buf()
 {
-	t_8	scan_code;
+    t_8 scan_code;
 
-	RT_ASSERT(kb_in.count>0);
-	scan_code = *(kb_in.p_tail);
-	kb_in.p_tail++;
-	if (kb_in.p_tail == kb_in.buf + KB_IN_BYTES) {
-		kb_in.p_tail = kb_in.buf;
-	}
-	kb_in.count--;
+    RT_ASSERT(kb_in.count>0);
+    scan_code = *(kb_in.p_tail);
+    kb_in.p_tail++;
+    if (kb_in.p_tail == kb_in.buf + KB_IN_BYTES) {
+        kb_in.p_tail = kb_in.buf;
+    }
+    kb_in.count--;
 
-	return scan_code;
+    return scan_code;
 }
 
 PRIVATE void kb_wait() /* wait inpit cache of 8042 */
 {
-	t_8 kb_stat;
+    t_8 kb_stat;
 
-	do {
-		kb_stat = inb(KB_CMD);
-	} while (kb_stat & 0x02);
+    do {
+        kb_stat = inb(KB_CMD);
+    } while (kb_stat & 0x02);
 }
 
 PRIVATE void kb_ack()
 {
-	t_8 kb_read;
+    t_8 kb_read;
 
-	do {
-		kb_read = inb(KB_DATA);
-	} while (kb_read != KB_ACK);
+    do {
+        kb_read = inb(KB_DATA);
+    } while (kb_read != KB_ACK);
 }
 
 PRIVATE void set_leds()
 {
-	t_8 leds = (caps_lock << 2) | (num_lock << 1) | scroll_lock;
+    t_8 leds = (caps_lock << 2) | (num_lock << 1) | scroll_lock;
 
-	kb_wait();
-	outb(KB_DATA, LED_CODE);
-	kb_ack();
+    kb_wait();
+    outb(KB_DATA, LED_CODE);
+    kb_ack();
 
-	kb_wait();
-	outb(KB_DATA, leds);
-	kb_ack();
+    kb_wait();
+    outb(KB_DATA, leds);
+    kb_ack();
 }
 
 /**
@@ -312,51 +312,51 @@ PRIVATE void set_leds()
 
 void rt_keyboard_isr(void)
 {
-	rt_uint8_t data;
+    rt_uint8_t data;
 
-	if ((inb(KBSTATP) & KBS_DIB) == 0)
-		return ;
+    if ((inb(KBSTATP) & KBS_DIB) == 0)
+        return ;
 
-	data = inb(KBDATAP);
+    data = inb(KBDATAP);
 
-	if (kb_in.count < KB_IN_BYTES) {
-		*(kb_in.p_head) = data;
-		kb_in.p_head++;
-		if (kb_in.p_head == kb_in.buf + KB_IN_BYTES) {
-			kb_in.p_head = kb_in.buf;
-		}
-		kb_in.count++;
-	}
+    if (kb_in.count < KB_IN_BYTES) {
+        *(kb_in.p_head) = data;
+        kb_in.p_head++;
+        if (kb_in.p_head == kb_in.buf + KB_IN_BYTES) {
+            kb_in.p_head = kb_in.buf;
+        }
+        kb_in.count++;
+    }
 }
 /* generally, this should be called in task level for all key inpit support,
 but here only support a key that is composed of 2 bytes */
 rt_bool_t rt_keyboard_getc(char* c)
 {
-	if(kb_in.count>=2)
-	{
-		rt_uint32_t key = 0;
-		rt_bool_t rv=keyboard_read(&key);
+    if(kb_in.count>=2)
+    {
+        rt_uint32_t key = 0;
+        rt_bool_t rv=keyboard_read(&key);
 
-		switch(key)
-		{
-			case TAB:
-				*c = '\t';
-				break;
-			case ENTER:
-				*c = '\n';
-				break;
-			case BACKSPACE:
-				*c = '\b';
-				break;
-			default:
-				*c = key;
-				break;
-		}
+        switch(key)
+        {
+            case TAB:
+                *c = '\t';
+                break;
+            case ENTER:
+                *c = '\n';
+                break;
+            case BACKSPACE:
+                *c = '\b';
+                break;
+            default:
+                *c = key;
+                break;
+        }
 
-		return rv;
-	}
+        return rv;
+    }
 
-	return RT_FALSE;
+    return RT_FALSE;
 }
 
 /*@}*/
diff --git a/bsp/x86/drivers/keyboard.h b/bsp/x86/drivers/keyboard.h
index 437d9dfc9f..3fec24c4e8 100644
--- a/bsp/x86/drivers/keyboard.h
+++ b/bsp/x86/drivers/keyboard.h
@@ -12,115 +12,115 @@
                                                     Forrest Yu, 2005
 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
 
-#ifndef	_TINIX_KEYBOARD_H_
-#define	_TINIX_KEYBOARD_H_
+#ifndef _TINIX_KEYBOARD_H_
+#define _TINIX_KEYBOARD_H_
 
 
 /************************************************************************/
 /*                          Macros Declaration                          */
 /************************************************************************/
-#define	KB_IN_BYTES	32	/* size of keyboard input buffer */
-#define MAP_COLS	3	/* Number of columns in keymap */
-#define NR_SCAN_CODES	0x80	/* Number of scan codes (rows in keymap) */
+#define KB_IN_BYTES 32  /* size of keyboard input buffer */
+#define MAP_COLS    3   /* Number of columns in keymap */
+#define NR_SCAN_CODES   0x80    /* Number of scan codes (rows in keymap) */
 
-#define FLAG_BREAK	0x0080		/* Break Code			*/
-#define FLAG_EXT	0x0100		/* Normal function keys		*/
-#define FLAG_SHIFT_L	0x0200		/* Shift key			*/
-#define FLAG_SHIFT_R	0x0400		/* Shift key			*/
-#define FLAG_CTRL_L	0x0800		/* Control key			*/
-#define FLAG_CTRL_R	0x1000		/* Control key			*/
-#define FLAG_ALT_L	0x2000		/* Alternate key		*/
-#define FLAG_ALT_R	0x4000		/* Alternate key		*/
-#define FLAG_PAD	0x8000		/* keys in num pad		*/
+#define FLAG_BREAK  0x0080      /* Break Code           */
+#define FLAG_EXT    0x0100      /* Normal function keys     */
+#define FLAG_SHIFT_L    0x0200      /* Shift key            */
+#define FLAG_SHIFT_R    0x0400      /* Shift key            */
+#define FLAG_CTRL_L 0x0800      /* Control key          */
+#define FLAG_CTRL_R 0x1000      /* Control key          */
+#define FLAG_ALT_L  0x2000      /* Alternate key        */
+#define FLAG_ALT_R  0x4000      /* Alternate key        */
+#define FLAG_PAD    0x8000      /* keys in num pad      */
 
-#define MASK_RAW	0x01FF		/* raw key value = code passed to tty & MASK_RAW
-					   the value can be found either in the keymap column 0
-					   or in the list below */
+#define MASK_RAW    0x01FF      /* raw key value = code passed to tty & MASK_RAW
+                       the value can be found either in the keymap column 0
+                       or in the list below */
 
 /* Special keys */
-#define ESC		(0x01 + FLAG_EXT)	/* Esc		*/
-#define TAB		(0x02 + FLAG_EXT)	/* Tab		*/
-#define ENTER		(0x03 + FLAG_EXT)	/* Enter	*/
-#define BACKSPACE	(0x04 + FLAG_EXT)	/* BackSpace	*/
+#define ESC     (0x01 + FLAG_EXT)   /* Esc      */
+#define TAB     (0x02 + FLAG_EXT)   /* Tab      */
+#define ENTER       (0x03 + FLAG_EXT)   /* Enter    */
+#define BACKSPACE   (0x04 + FLAG_EXT)   /* BackSpace    */
 
-#define GUI_L		(0x05 + FLAG_EXT)	/* L GUI	*/
-#define GUI_R		(0x06 + FLAG_EXT)	/* R GUI	*/
-#define APPS		(0x07 + FLAG_EXT)	/* APPS	*/
+#define GUI_L       (0x05 + FLAG_EXT)   /* L GUI    */
+#define GUI_R       (0x06 + FLAG_EXT)   /* R GUI    */
+#define APPS        (0x07 + FLAG_EXT)   /* APPS */
 
 /* Shift, Ctrl, Alt */
-#define SHIFT_L		(0x08 + FLAG_EXT)	/* L Shift	*/
-#define SHIFT_R		(0x09 + FLAG_EXT)	/* R Shift	*/
-#define CTRL_L		(0x0A + FLAG_EXT)	/* L Ctrl	*/
-#define CTRL_R		(0x0B + FLAG_EXT)	/* R Ctrl	*/
-#define ALT_L		(0x0C + FLAG_EXT)	/* L Alt	*/
-#define ALT_R		(0x0D + FLAG_EXT)	/* R Alt	*/
+#define SHIFT_L     (0x08 + FLAG_EXT)   /* L Shift  */
+#define SHIFT_R     (0x09 + FLAG_EXT)   /* R Shift  */
+#define CTRL_L      (0x0A + FLAG_EXT)   /* L Ctrl   */
+#define CTRL_R      (0x0B + FLAG_EXT)   /* R Ctrl   */
+#define ALT_L       (0x0C + FLAG_EXT)   /* L Alt    */
+#define ALT_R       (0x0D + FLAG_EXT)   /* R Alt    */
 
 /* Lock keys */
-#define CAPS_LOCK	(0x0E + FLAG_EXT)	/* Caps Lock	*/
-#define	NUM_LOCK	(0x0F + FLAG_EXT)	/* Number Lock	*/
-#define SCROLL_LOCK	(0x10 + FLAG_EXT)	/* Scroll Lock	*/
+#define CAPS_LOCK   (0x0E + FLAG_EXT)   /* Caps Lock    */
+#define NUM_LOCK    (0x0F + FLAG_EXT)   /* Number Lock  */
+#define SCROLL_LOCK (0x10 + FLAG_EXT)   /* Scroll Lock  */
 
 /* Function keys */
-#define F1		(0x11 + FLAG_EXT)	/* F1		*/
-#define F2		(0x12 + FLAG_EXT)	/* F2		*/
-#define F3		(0x13 + FLAG_EXT)	/* F3		*/
-#define F4		(0x14 + FLAG_EXT)	/* F4		*/
-#define F5		(0x15 + FLAG_EXT)	/* F5		*/
-#define F6		(0x16 + FLAG_EXT)	/* F6		*/
-#define F7		(0x17 + FLAG_EXT)	/* F7		*/
-#define F8		(0x18 + FLAG_EXT)	/* F8		*/
-#define F9		(0x19 + FLAG_EXT)	/* F9		*/
-#define F10		(0x1A + FLAG_EXT)	/* F10		*/
-#define F11		(0x1B + FLAG_EXT)	/* F11		*/
-#define F12		(0x1C + FLAG_EXT)	/* F12		*/
+#define F1      (0x11 + FLAG_EXT)   /* F1       */
+#define F2      (0x12 + FLAG_EXT)   /* F2       */
+#define F3      (0x13 + FLAG_EXT)   /* F3       */
+#define F4      (0x14 + FLAG_EXT)   /* F4       */
+#define F5      (0x15 + FLAG_EXT)   /* F5       */
+#define F6      (0x16 + FLAG_EXT)   /* F6       */
+#define F7      (0x17 + FLAG_EXT)   /* F7       */
+#define F8      (0x18 + FLAG_EXT)   /* F8       */
+#define F9      (0x19 + FLAG_EXT)   /* F9       */
+#define F10     (0x1A + FLAG_EXT)   /* F10      */
+#define F11     (0x1B + FLAG_EXT)   /* F11      */
+#define F12     (0x1C + FLAG_EXT)   /* F12      */
 
 /* Control Pad */
-#define PRINTSCREEN	(0x1D + FLAG_EXT)	/* Print Screen	*/
-#define PAUSEBREAK	(0x1E + FLAG_EXT)	/* Pause/Break	*/
-#define INSERT		(0x1F + FLAG_EXT)	/* Insert	*/
-#define DELETE		(0x20 + FLAG_EXT)	/* Delete	*/
-#define HOME		(0x21 + FLAG_EXT)	/* Home		*/
-#define END		(0x22 + FLAG_EXT)	/* End		*/
-#define PAGEUP		(0x23 + FLAG_EXT)	/* Page Up	*/
-#define PAGEDOWN	(0x24 + FLAG_EXT)	/* Page Down	*/
-#define UP		(0x25 + FLAG_EXT)	/* Up		*/
-#define DOWN		(0x26 + FLAG_EXT)	/* Down		*/
-#define LEFT		(0x27 + FLAG_EXT)	/* Left		*/
-#define RIGHT		(0x28 + FLAG_EXT)	/* Right	*/
+#define PRINTSCREEN (0x1D + FLAG_EXT)   /* Print Screen */
+#define PAUSEBREAK  (0x1E + FLAG_EXT)   /* Pause/Break  */
+#define INSERT      (0x1F + FLAG_EXT)   /* Insert   */
+#define DELETE      (0x20 + FLAG_EXT)   /* Delete   */
+#define HOME        (0x21 + FLAG_EXT)   /* Home     */
+#define END     (0x22 + FLAG_EXT)   /* End      */
+#define PAGEUP      (0x23 + FLAG_EXT)   /* Page Up  */
+#define PAGEDOWN    (0x24 + FLAG_EXT)   /* Page Down    */
+#define UP      (0x25 + FLAG_EXT)   /* Up       */
+#define DOWN        (0x26 + FLAG_EXT)   /* Down     */
+#define LEFT        (0x27 + FLAG_EXT)   /* Left     */
+#define RIGHT       (0x28 + FLAG_EXT)   /* Right    */
 
 /* ACPI keys */
-#define POWER		(0x29 + FLAG_EXT)	/* Power	*/
-#define SLEEP		(0x2A + FLAG_EXT)	/* Sleep	*/
-#define WAKE		(0x2B + FLAG_EXT)	/* Wake Up	*/
+#define POWER       (0x29 + FLAG_EXT)   /* Power    */
+#define SLEEP       (0x2A + FLAG_EXT)   /* Sleep    */
+#define WAKE        (0x2B + FLAG_EXT)   /* Wake Up  */
 
 /* Num Pad */
-#define PAD_SLASH	(0x2C + FLAG_EXT)	/* /		*/
-#define PAD_STAR	(0x2D + FLAG_EXT)	/* *		*/
-#define PAD_MINUS	(0x2E + FLAG_EXT)	/* -		*/
-#define PAD_PLUS	(0x2F + FLAG_EXT)	/* +		*/
-#define PAD_ENTER	(0x30 + FLAG_EXT)	/* Enter	*/
-#define PAD_DOT		(0x31 + FLAG_EXT)	/* .		*/
-#define PAD_0		(0x32 + FLAG_EXT)	/* 0		*/
-#define PAD_1		(0x33 + FLAG_EXT)	/* 1		*/
-#define PAD_2		(0x34 + FLAG_EXT)	/* 2		*/
-#define PAD_3		(0x35 + FLAG_EXT)	/* 3		*/
-#define PAD_4		(0x36 + FLAG_EXT)	/* 4		*/
-#define PAD_5		(0x37 + FLAG_EXT)	/* 5		*/
-#define PAD_6		(0x38 + FLAG_EXT)	/* 6		*/
-#define PAD_7		(0x39 + FLAG_EXT)	/* 7		*/
-#define PAD_8		(0x3A + FLAG_EXT)	/* 8		*/
-#define PAD_9		(0x3B + FLAG_EXT)	/* 9		*/
-#define PAD_UP		PAD_8			/* Up		*/
-#define PAD_DOWN	PAD_2			/* Down		*/
-#define PAD_LEFT	PAD_4			/* Left		*/
-#define PAD_RIGHT	PAD_6			/* Right	*/
-#define PAD_HOME	PAD_7			/* Home		*/
-#define PAD_END		PAD_1			/* End		*/
-#define PAD_PAGEUP	PAD_9			/* Page Up	*/
-#define PAD_PAGEDOWN	PAD_3			/* Page Down	*/
-#define PAD_INS		PAD_0			/* Ins		*/
-#define PAD_MID		PAD_5			/* Middle key	*/
-#define PAD_DEL		PAD_DOT			/* Del		*/
+#define PAD_SLASH   (0x2C + FLAG_EXT)   /* /        */
+#define PAD_STAR    (0x2D + FLAG_EXT)   /* *        */
+#define PAD_MINUS   (0x2E + FLAG_EXT)   /* -        */
+#define PAD_PLUS    (0x2F + FLAG_EXT)   /* +        */
+#define PAD_ENTER   (0x30 + FLAG_EXT)   /* Enter    */
+#define PAD_DOT     (0x31 + FLAG_EXT)   /* .        */
+#define PAD_0       (0x32 + FLAG_EXT)   /* 0        */
+#define PAD_1       (0x33 + FLAG_EXT)   /* 1        */
+#define PAD_2       (0x34 + FLAG_EXT)   /* 2        */
+#define PAD_3       (0x35 + FLAG_EXT)   /* 3        */
+#define PAD_4       (0x36 + FLAG_EXT)   /* 4        */
+#define PAD_5       (0x37 + FLAG_EXT)   /* 5        */
+#define PAD_6       (0x38 + FLAG_EXT)   /* 6        */
+#define PAD_7       (0x39 + FLAG_EXT)   /* 7        */
+#define PAD_8       (0x3A + FLAG_EXT)   /* 8        */
+#define PAD_9       (0x3B + FLAG_EXT)   /* 9        */
+#define PAD_UP      PAD_8           /* Up       */
+#define PAD_DOWN    PAD_2           /* Down     */
+#define PAD_LEFT    PAD_4           /* Left     */
+#define PAD_RIGHT   PAD_6           /* Right    */
+#define PAD_HOME    PAD_7           /* Home     */
+#define PAD_END     PAD_1           /* End      */
+#define PAD_PAGEUP  PAD_9           /* Page Up  */
+#define PAD_PAGEDOWN    PAD_3           /* Page Down    */
+#define PAD_INS     PAD_0           /* Ins      */
+#define PAD_MID     PAD_5           /* Middle key   */
+#define PAD_DEL     PAD_DOT         /* Del      */
 
 
 /************************************************************************/
@@ -128,10 +128,10 @@
 /************************************************************************/
 /* Keyboard structure, 1 per console. */
 typedef struct s_kb {
-	char*	p_head;			/* input cache pointer */
-	char*	p_tail;			/* read cache pointer */
-	int	count;
-	char	buf[KB_IN_BYTES];
+    char*   p_head;         /* input cache pointer */
+    char*   p_tail;         /* read cache pointer */
+    int count;
+    char    buf[KB_IN_BYTES];
 }KB_INPUT;
 
 
diff --git a/bsp/x86/drivers/keymap.h b/bsp/x86/drivers/keymap.h
index aa9880e295..e141fa0d6e 100644
--- a/bsp/x86/drivers/keymap.h
+++ b/bsp/x86/drivers/keymap.h
@@ -17,227 +17,227 @@
 /*    It should be and can only be included by keyboard.c!          */
 /********************************************************************/
 
-#ifndef	_TINIX_KEYMAP_H_
-#define	_TINIX_KEYMAP_H_
+#ifndef _TINIX_KEYMAP_H_
+#define _TINIX_KEYMAP_H_
 
 
 /* Keymap for US MF-2 keyboard. */
 
 rt_uint32_t keymap[NR_SCAN_CODES * MAP_COLS] = {
 
-/* scan-code			!Shift		Shift		E0 XX		*/
+/* scan-code            !Shift      Shift       E0 XX       */
 /* ==================================================================== */
-/* 0x00 - none		*/	0,		0,		0,
-/* 0x01 - ESC		*/	ESC,		ESC,		0,
-/* 0x02 - '1'		*/	'1',		'!',		0,
-/* 0x03 - '2'		*/	'2',		'@',		0,
-/* 0x04 - '3'		*/	'3',		'#',		0,
-/* 0x05 - '4'		*/	'4',		'$',		0,
-/* 0x06 - '5'		*/	'5',		'%',		0,
-/* 0x07 - '6'		*/	'6',		'^',		0,
-/* 0x08 - '7'		*/	'7',		'&',		0,
-/* 0x09 - '8'		*/	'8',		'*',		0,
-/* 0x0A - '9'		*/	'9',		'(',		0,
-/* 0x0B - '0'		*/	'0',		')',		0,
-/* 0x0C - '-'		*/	'-',		'_',		0,
-/* 0x0D - '='		*/	'=',		'+',		0,
-/* 0x0E - BS		*/	BACKSPACE,	BACKSPACE,	0,
-/* 0x0F - TAB		*/	TAB,		TAB,		0,
-/* 0x10 - 'q'		*/	'q',		'Q',		0,
-/* 0x11 - 'w'		*/	'w',		'W',		0,
-/* 0x12 - 'e'		*/	'e',		'E',		0,
-/* 0x13 - 'r'		*/	'r',		'R',		0,
-/* 0x14 - 't'		*/	't',		'T',		0,
-/* 0x15 - 'y'		*/	'y',		'Y',		0,
-/* 0x16 - 'u'		*/	'u',		'U',		0,
-/* 0x17 - 'i'		*/	'i',		'I',		0,
-/* 0x18 - 'o'		*/	'o',		'O',		0,
-/* 0x19 - 'p'		*/	'p',		'P',		0,
-/* 0x1A - '['		*/	'[',		'{',		0,
-/* 0x1B - ']'		*/	']',		'}',		0,
-/* 0x1C - CR/LF		*/	ENTER,		ENTER,		PAD_ENTER,
-/* 0x1D - l. Ctrl	*/	CTRL_L,		CTRL_L,		CTRL_R,
-/* 0x1E - 'a'		*/	'a',		'A',		0,
-/* 0x1F - 's'		*/	's',		'S',		0,
-/* 0x20 - 'd'		*/	'd',		'D',		0,
-/* 0x21 - 'f'		*/	'f',		'F',		0,
-/* 0x22 - 'g'		*/	'g',		'G',		0,
-/* 0x23 - 'h'		*/	'h',		'H',		0,
-/* 0x24 - 'j'		*/	'j',		'J',		0,
-/* 0x25 - 'k'		*/	'k',		'K',		0,
-/* 0x26 - 'l'		*/	'l',		'L',		0,
-/* 0x27 - ';'		*/	';',		':',		0,
-/* 0x28 - '\''		*/	'\'',		'"',		0,
-/* 0x29 - '`'		*/	'`',		'~',		0,
-/* 0x2A - l. SHIFT	*/	SHIFT_L,	SHIFT_L,	0,
-/* 0x2B - '\'		*/	'\\',		'|',		0,
-/* 0x2C - 'z'		*/	'z',		'Z',		0,
-/* 0x2D - 'x'		*/	'x',		'X',		0,
-/* 0x2E - 'c'		*/	'c',		'C',		0,
-/* 0x2F - 'v'		*/	'v',		'V',		0,
-/* 0x30 - 'b'		*/	'b',		'B',		0,
-/* 0x31 - 'n'		*/	'n',		'N',		0,
-/* 0x32 - 'm'		*/	'm',		'M',		0,
-/* 0x33 - ','		*/	',',		'<',		0,
-/* 0x34 - '.'		*/	'.',		'>',		0,
-/* 0x35 - '/'		*/	'/',		'?',		PAD_SLASH,
-/* 0x36 - r. SHIFT	*/	SHIFT_R,	SHIFT_R,	0,
-/* 0x37 - '*'		*/	'*',		'*',    	0,
-/* 0x38 - ALT		*/	ALT_L,		ALT_L,  	ALT_R,
-/* 0x39 - ' '		*/	' ',		' ',		0,
-/* 0x3A - CapsLock	*/	CAPS_LOCK,	CAPS_LOCK,	0,
-/* 0x3B - F1		*/	F1,		F1,		0,
-/* 0x3C - F2		*/	F2,		F2,		0,
-/* 0x3D - F3		*/	F3,		F3,		0,
-/* 0x3E - F4		*/	F4,		F4,		0,
-/* 0x3F - F5		*/	F5,		F5,		0,
-/* 0x40 - F6		*/	F6,		F6,		0,
-/* 0x41 - F7		*/	F7,		F7,		0,
-/* 0x42 - F8		*/	F8,		F8,		0,
-/* 0x43 - F9		*/	F9,		F9,		0,
-/* 0x44 - F10		*/	F10,		F10,		0,
-/* 0x45 - NumLock	*/	NUM_LOCK,	NUM_LOCK,	0,
-/* 0x46 - ScrLock	*/	SCROLL_LOCK,	SCROLL_LOCK,	0,
-/* 0x47 - Home		*/	PAD_HOME,	'7',		HOME,
-/* 0x48 - CurUp		*/	PAD_UP,		'8',		UP,
-/* 0x49 - PgUp		*/	PAD_PAGEUP,	'9',		PAGEUP,
-/* 0x4A - '-'		*/	PAD_MINUS,	'-',		0,
-/* 0x4B - Left		*/	PAD_LEFT,	'4',		LEFT,
-/* 0x4C - MID		*/	PAD_MID,	'5',		0,
-/* 0x4D - Right		*/	PAD_RIGHT,	'6',		RIGHT,
-/* 0x4E - '+'		*/	PAD_PLUS,	'+',		0,
-/* 0x4F - End		*/	PAD_END,	'1',		END,
-/* 0x50 - Down		*/	PAD_DOWN,	'2',		DOWN,
-/* 0x51 - PgDown	*/	PAD_PAGEDOWN,	'3',		PAGEDOWN,
-/* 0x52 - Insert	*/	PAD_INS,	'0',		INSERT,
-/* 0x53 - Delete	*/	PAD_DOT,	'.',		DELETE,
-/* 0x54 - Enter		*/	0,		0,		0,
-/* 0x55 - ???		*/	0,		0,		0,
-/* 0x56 - ???		*/	0,		0,		0,
-/* 0x57 - F11		*/	F11,		F11,		0,	
-/* 0x58 - F12		*/	F12,		F12,		0,	
-/* 0x59 - ???		*/	0,		0,		0,	
-/* 0x5A - ???		*/	0,		0,		0,	
-/* 0x5B - ???		*/	0,		0,		GUI_L,	
-/* 0x5C - ???		*/	0,		0,		GUI_R,	
-/* 0x5D - ???		*/	0,		0,		APPS,	
-/* 0x5E - ???		*/	0,		0,		0,	
-/* 0x5F - ???		*/	0,		0,		0,	
-/* 0x60 - ???		*/	0,		0,		0,
-/* 0x61 - ???		*/	0,		0,		0,	
-/* 0x62 - ???		*/	0,		0,		0,	
-/* 0x63 - ???		*/	0,		0,		0,	
-/* 0x64 - ???		*/	0,		0,		0,	
-/* 0x65 - ???		*/	0,		0,		0,	
-/* 0x66 - ???		*/	0,		0,		0,	
-/* 0x67 - ???		*/	0,		0,		0,	
-/* 0x68 - ???		*/	0,		0,		0,	
-/* 0x69 - ???		*/	0,		0,		0,	
-/* 0x6A - ???		*/	0,		0,		0,	
-/* 0x6B - ???		*/	0,		0,		0,	
-/* 0x6C - ???		*/	0,		0,		0,	
-/* 0x6D - ???		*/	0,		0,		0,	
-/* 0x6E - ???		*/	0,		0,		0,	
-/* 0x6F - ???		*/	0,		0,		0,	
-/* 0x70 - ???		*/	0,		0,		0,	
-/* 0x71 - ???		*/	0,		0,		0,	
-/* 0x72 - ???		*/	0,		0,		0,	
-/* 0x73 - ???		*/	0,		0,		0,	
-/* 0x74 - ???		*/	0,		0,		0,	
-/* 0x75 - ???		*/	0,		0,		0,	
-/* 0x76 - ???		*/	0,		0,		0,	
-/* 0x77 - ???		*/	0,		0,		0,	
-/* 0x78 - ???		*/	0,		0,		0,	
-/* 0x78 - ???		*/	0,		0,		0,	
-/* 0x7A - ???		*/	0,		0,		0,	
-/* 0x7B - ???		*/	0,		0,		0,	
-/* 0x7C - ???		*/	0,		0,		0,	
-/* 0x7D - ???		*/	0,		0,		0,	
-/* 0x7E - ???		*/	0,		0,		0,	
-/* 0x7F - ???		*/	0,		0,		0
+/* 0x00 - none      */  0,      0,      0,
+/* 0x01 - ESC       */  ESC,        ESC,        0,
+/* 0x02 - '1'       */  '1',        '!',        0,
+/* 0x03 - '2'       */  '2',        '@',        0,
+/* 0x04 - '3'       */  '3',        '#',        0,
+/* 0x05 - '4'       */  '4',        '$',        0,
+/* 0x06 - '5'       */  '5',        '%',        0,
+/* 0x07 - '6'       */  '6',        '^',        0,
+/* 0x08 - '7'       */  '7',        '&',        0,
+/* 0x09 - '8'       */  '8',        '*',        0,
+/* 0x0A - '9'       */  '9',        '(',        0,
+/* 0x0B - '0'       */  '0',        ')',        0,
+/* 0x0C - '-'       */  '-',        '_',        0,
+/* 0x0D - '='       */  '=',        '+',        0,
+/* 0x0E - BS        */  BACKSPACE,  BACKSPACE,  0,
+/* 0x0F - TAB       */  TAB,        TAB,        0,
+/* 0x10 - 'q'       */  'q',        'Q',        0,
+/* 0x11 - 'w'       */  'w',        'W',        0,
+/* 0x12 - 'e'       */  'e',        'E',        0,
+/* 0x13 - 'r'       */  'r',        'R',        0,
+/* 0x14 - 't'       */  't',        'T',        0,
+/* 0x15 - 'y'       */  'y',        'Y',        0,
+/* 0x16 - 'u'       */  'u',        'U',        0,
+/* 0x17 - 'i'       */  'i',        'I',        0,
+/* 0x18 - 'o'       */  'o',        'O',        0,
+/* 0x19 - 'p'       */  'p',        'P',        0,
+/* 0x1A - '['       */  '[',        '{',        0,
+/* 0x1B - ']'       */  ']',        '}',        0,
+/* 0x1C - CR/LF     */  ENTER,      ENTER,      PAD_ENTER,
+/* 0x1D - l. Ctrl   */  CTRL_L,     CTRL_L,     CTRL_R,
+/* 0x1E - 'a'       */  'a',        'A',        0,
+/* 0x1F - 's'       */  's',        'S',        0,
+/* 0x20 - 'd'       */  'd',        'D',        0,
+/* 0x21 - 'f'       */  'f',        'F',        0,
+/* 0x22 - 'g'       */  'g',        'G',        0,
+/* 0x23 - 'h'       */  'h',        'H',        0,
+/* 0x24 - 'j'       */  'j',        'J',        0,
+/* 0x25 - 'k'       */  'k',        'K',        0,
+/* 0x26 - 'l'       */  'l',        'L',        0,
+/* 0x27 - ';'       */  ';',        ':',        0,
+/* 0x28 - '\''      */  '\'',       '"',        0,
+/* 0x29 - '`'       */  '`',        '~',        0,
+/* 0x2A - l. SHIFT  */  SHIFT_L,    SHIFT_L,    0,
+/* 0x2B - '\'       */  '\\',       '|',        0,
+/* 0x2C - 'z'       */  'z',        'Z',        0,
+/* 0x2D - 'x'       */  'x',        'X',        0,
+/* 0x2E - 'c'       */  'c',        'C',        0,
+/* 0x2F - 'v'       */  'v',        'V',        0,
+/* 0x30 - 'b'       */  'b',        'B',        0,
+/* 0x31 - 'n'       */  'n',        'N',        0,
+/* 0x32 - 'm'       */  'm',        'M',        0,
+/* 0x33 - ','       */  ',',        '<',        0,
+/* 0x34 - '.'       */  '.',        '>',        0,
+/* 0x35 - '/'       */  '/',        '?',        PAD_SLASH,
+/* 0x36 - r. SHIFT  */  SHIFT_R,    SHIFT_R,    0,
+/* 0x37 - '*'       */  '*',        '*',        0,
+/* 0x38 - ALT       */  ALT_L,      ALT_L,      ALT_R,
+/* 0x39 - ' '       */  ' ',        ' ',        0,
+/* 0x3A - CapsLock  */  CAPS_LOCK,  CAPS_LOCK,  0,
+/* 0x3B - F1        */  F1,     F1,     0,
+/* 0x3C - F2        */  F2,     F2,     0,
+/* 0x3D - F3        */  F3,     F3,     0,
+/* 0x3E - F4        */  F4,     F4,     0,
+/* 0x3F - F5        */  F5,     F5,     0,
+/* 0x40 - F6        */  F6,     F6,     0,
+/* 0x41 - F7        */  F7,     F7,     0,
+/* 0x42 - F8        */  F8,     F8,     0,
+/* 0x43 - F9        */  F9,     F9,     0,
+/* 0x44 - F10       */  F10,        F10,        0,
+/* 0x45 - NumLock   */  NUM_LOCK,   NUM_LOCK,   0,
+/* 0x46 - ScrLock   */  SCROLL_LOCK,    SCROLL_LOCK,    0,
+/* 0x47 - Home      */  PAD_HOME,   '7',        HOME,
+/* 0x48 - CurUp     */  PAD_UP,     '8',        UP,
+/* 0x49 - PgUp      */  PAD_PAGEUP, '9',        PAGEUP,
+/* 0x4A - '-'       */  PAD_MINUS,  '-',        0,
+/* 0x4B - Left      */  PAD_LEFT,   '4',        LEFT,
+/* 0x4C - MID       */  PAD_MID,    '5',        0,
+/* 0x4D - Right     */  PAD_RIGHT,  '6',        RIGHT,
+/* 0x4E - '+'       */  PAD_PLUS,   '+',        0,
+/* 0x4F - End       */  PAD_END,    '1',        END,
+/* 0x50 - Down      */  PAD_DOWN,   '2',        DOWN,
+/* 0x51 - PgDown    */  PAD_PAGEDOWN,   '3',        PAGEDOWN,
+/* 0x52 - Insert    */  PAD_INS,    '0',        INSERT,
+/* 0x53 - Delete    */  PAD_DOT,    '.',        DELETE,
+/* 0x54 - Enter     */  0,      0,      0,
+/* 0x55 - ???       */  0,      0,      0,
+/* 0x56 - ???       */  0,      0,      0,
+/* 0x57 - F11       */  F11,        F11,        0,
+/* 0x58 - F12       */  F12,        F12,        0,
+/* 0x59 - ???       */  0,      0,      0,
+/* 0x5A - ???       */  0,      0,      0,
+/* 0x5B - ???       */  0,      0,      GUI_L,
+/* 0x5C - ???       */  0,      0,      GUI_R,
+/* 0x5D - ???       */  0,      0,      APPS,
+/* 0x5E - ???       */  0,      0,      0,
+/* 0x5F - ???       */  0,      0,      0,
+/* 0x60 - ???       */  0,      0,      0,
+/* 0x61 - ???       */  0,      0,      0,
+/* 0x62 - ???       */  0,      0,      0,
+/* 0x63 - ???       */  0,      0,      0,
+/* 0x64 - ???       */  0,      0,      0,
+/* 0x65 - ???       */  0,      0,      0,
+/* 0x66 - ???       */  0,      0,      0,
+/* 0x67 - ???       */  0,      0,      0,
+/* 0x68 - ???       */  0,      0,      0,
+/* 0x69 - ???       */  0,      0,      0,
+/* 0x6A - ???       */  0,      0,      0,
+/* 0x6B - ???       */  0,      0,      0,
+/* 0x6C - ???       */  0,      0,      0,
+/* 0x6D - ???       */  0,      0,      0,
+/* 0x6E - ???       */  0,      0,      0,
+/* 0x6F - ???       */  0,      0,      0,
+/* 0x70 - ???       */  0,      0,      0,
+/* 0x71 - ???       */  0,      0,      0,
+/* 0x72 - ???       */  0,      0,      0,
+/* 0x73 - ???       */  0,      0,      0,
+/* 0x74 - ???       */  0,      0,      0,
+/* 0x75 - ???       */  0,      0,      0,
+/* 0x76 - ???       */  0,      0,      0,
+/* 0x77 - ???       */  0,      0,      0,
+/* 0x78 - ???       */  0,      0,      0,
+/* 0x78 - ???       */  0,      0,      0,
+/* 0x7A - ???       */  0,      0,      0,
+/* 0x7B - ???       */  0,      0,      0,
+/* 0x7C - ???       */  0,      0,      0,
+/* 0x7D - ???       */  0,      0,      0,
+/* 0x7E - ???       */  0,      0,      0,
+/* 0x7F - ???       */  0,      0,      0
 };
 
 /*====================================================================================*
-				Appendix: Scan code set 1
+                Appendix: Scan code set 1
  *====================================================================================*
 
-KEY	MAKE	BREAK	-----	KEY	MAKE	BREAK	-----	KEY	MAKE	BREAK
+KEY MAKE    BREAK   -----   KEY MAKE    BREAK   -----   KEY MAKE    BREAK
 --------------------------------------------------------------------------------------
-A	1E	9E		9	0A	8A		[	1A	9A
-B	30	B0		`	29	89		INSERT	E0,52	E0,D2
-C	2E	AE		-	0C	8C		HOME	E0,47	E0,C7
-D	20	A0		=	0D	8D		PG UP	E0,49	E0,C9
-E	12	92		\	2B	AB		DELETE	E0,53	E0,D3
-F	21	A1		BKSP	0E	8E		END	E0,4F	E0,CF
-G	22	A2		SPACE	39	B9		PG DN	E0,51	E0,D1
-H	23	A3		TAB	0F	8F		U ARROW	E0,48	E0,C8
-I	17	97		CAPS	3A	BA		L ARROW	E0,4B	E0,CB
-J	24	A4		L SHFT	2A	AA		D ARROW	E0,50	E0,D0
-K	25	A5		L CTRL	1D	9D		R ARROW	E0,4D	E0,CD
-L	26	A6		L GUI	E0,5B	E0,DB		NUM	45	C5
-M	32	B2		L ALT	38	B8		KP /	E0,35	E0,B5
-N	31	B1		R SHFT	36	B6		KP *	37	B7
-O	18	98		R CTRL	E0,1D	E0,9D		KP -	4A	CA
-P	19	99		R GUI	E0,5C	E0,DC		KP +	4E	CE
-Q	10	19		R ALT	E0,38	E0,B8		KP EN	E0,1C	E0,9C
-R	13	93		APPS	E0,5D	E0,DD		KP .	53	D3
-S	1F	9F		ENTER	1C	9C		KP 0	52	D2
-T	14	94		ESC	01	81		KP 1	4F	CF
-U	16	96		F1	3B	BB		KP 2	50	D0
-V	2F	AF		F2	3C	BC		KP 3	51	D1
-W	11	91		F3	3D	BD		KP 4	4B	CB
-X	2D	AD		F4	3E	BE		KP 5	4C	CC
-Y	15	95		F5	3F	BF		KP 6	4D	CD
-Z	2C	AC		F6	40	C0		KP 7	47	C7
-0	0B	8B		F7	41	C1		KP 8	48	C8
-1	02	82		F8	42	C2		KP 9	49	C9
-2	03	83		F9	43	C3		]	1B	9B
-3	04	84		F10	44	C4		;	27	A7
-4	05	85		F11	57	D7		'	28	A8
-5	06	86		F12	58	D8		,	33	B3
+A   1E  9E      9   0A  8A      [   1A  9A
+B   30  B0      `   29  89      INSERT  E0,52   E0,D2
+C   2E  AE      -   0C  8C      HOME    E0,47   E0,C7
+D   20  A0      =   0D  8D      PG UP   E0,49   E0,C9
+E   12  92      \   2B  AB      DELETE  E0,53   E0,D3
+F   21  A1      BKSP    0E  8E      END E0,4F   E0,CF
+G   22  A2      SPACE   39  B9      PG DN   E0,51   E0,D1
+H   23  A3      TAB 0F  8F      U ARROW E0,48   E0,C8
+I   17  97      CAPS    3A  BA      L ARROW E0,4B   E0,CB
+J   24  A4      L SHFT  2A  AA      D ARROW E0,50   E0,D0
+K   25  A5      L CTRL  1D  9D      R ARROW E0,4D   E0,CD
+L   26  A6      L GUI   E0,5B   E0,DB       NUM 45  C5
+M   32  B2      L ALT   38  B8      KP /    E0,35   E0,B5
+N   31  B1      R SHFT  36  B6      KP *    37  B7
+O   18  98      R CTRL  E0,1D   E0,9D       KP -    4A  CA
+P   19  99      R GUI   E0,5C   E0,DC       KP +    4E  CE
+Q   10  19      R ALT   E0,38   E0,B8       KP EN   E0,1C   E0,9C
+R   13  93      APPS    E0,5D   E0,DD       KP .    53  D3
+S   1F  9F      ENTER   1C  9C      KP 0    52  D2
+T   14  94      ESC 01  81      KP 1    4F  CF
+U   16  96      F1  3B  BB      KP 2    50  D0
+V   2F  AF      F2  3C  BC      KP 3    51  D1
+W   11  91      F3  3D  BD      KP 4    4B  CB
+X   2D  AD      F4  3E  BE      KP 5    4C  CC
+Y   15  95      F5  3F  BF      KP 6    4D  CD
+Z   2C  AC      F6  40  C0      KP 7    47  C7
+0   0B  8B      F7  41  C1      KP 8    48  C8
+1   02  82      F8  42  C2      KP 9    49  C9
+2   03  83      F9  43  C3      ]   1B  9B
+3   04  84      F10 44  C4      ;   27  A7
+4   05  85      F11 57  D7      '   28  A8
+5   06  86      F12 58  D8      ,   33  B3
 
-6	07	87		PRTSCRN	E0,2A	E0,B7		.	34	B4
-					E0,37	E0,AA
+6   07  87      PRTSCRN E0,2A   E0,B7       .   34  B4
+                    E0,37   E0,AA
 
-7	08	88		SCROLL	46	C6		/	35	B5
+7   08  88      SCROLL  46  C6      /   35  B5
 
-8	09	89		PAUSE E1,1D,45	-NONE-				
-				      E1,9D,C5
+8   09  89      PAUSE E1,1D,45  -NONE-
+                      E1,9D,C5
 
 
 -----------------
 ACPI Scan Codes:
 -------------------------------------------
-Key		Make Code	Break Code
+Key     Make Code   Break Code
 -------------------------------------------
-Power		E0, 5E		E0, DE
-Sleep		E0, 5F		E0, DF
-Wake		E0, 63		E0, E3
+Power       E0, 5E      E0, DE
+Sleep       E0, 5F      E0, DF
+Wake        E0, 63      E0, E3
 
 
 -------------------------------
 Windows Multimedia Scan Codes:
 -------------------------------------------
-Key		Make Code	Break Code
+Key     Make Code   Break Code
 -------------------------------------------
-Next Track	E0, 19		E0, 99
-Previous Track	E0, 10		E0, 90
-Stop		E0, 24		E0, A4
-Play/Pause	E0, 22		E0, A2
-Mute		E0, 20		E0, A0
-Volume Up	E0, 30		E0, B0
-Volume Down	E0, 2E		E0, AE
-Media Select	E0, 6D		E0, ED
-E-Mail		E0, 6C		E0, EC
-Calculator	E0, 21		E0, A1
-My Computer	E0, 6B		E0, EB
-WWW Search	E0, 65		E0, E5
-WWW Home	E0, 32		E0, B2
-WWW Back	E0, 6A		E0, EA
-WWW Forward	E0, 69		E0, E9
-WWW Stop	E0, 68		E0, E8
-WWW Refresh	E0, 67		E0, E7
-WWW Favorites	E0, 66		E0, E6
+Next Track  E0, 19      E0, 99
+Previous Track  E0, 10      E0, 90
+Stop        E0, 24      E0, A4
+Play/Pause  E0, 22      E0, A2
+Mute        E0, 20      E0, A0
+Volume Up   E0, 30      E0, B0
+Volume Down E0, 2E      E0, AE
+Media Select    E0, 6D      E0, ED
+E-Mail      E0, 6C      E0, EC
+Calculator  E0, 21      E0, A1
+My Computer E0, 6B      E0, EB
+WWW Search  E0, 65      E0, E5
+WWW Home    E0, 32      E0, B2
+WWW Back    E0, 6A      E0, EA
+WWW Forward E0, 69      E0, E9
+WWW Stop    E0, 68      E0, E8
+WWW Refresh E0, 67      E0, E7
+WWW Favorites   E0, 66      E0, E6
 
 *=====================================================================================*/
 
diff --git a/bsp/x86/drivers/serial.c b/bsp/x86/drivers/serial.c
index 64830135fc..58cc9dee90 100644
--- a/bsp/x86/drivers/serial.c
+++ b/bsp/x86/drivers/serial.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -24,17 +24,17 @@
  */
 void rt_serial_init(void)
 {
-    outb(COM1+3,0x80);	/* set DLAB of line control reg */
-    outb(COM1,0x0c);	/* LS of divisor (48 -> 2400 bps */
-    outb(COM1+1,0x00);	/* MS of divisor */
-    outb(COM1+3,0x03);	/* reset DLAB */
-    outb(COM1+4,0x0b);	/* set DTR,RTS, OUT_2 */
-    outb(COM1+1,0x0d);	/* enable all intrs but writes */
-    inb(COM1);			/* read data port to reset things (?) */
+    outb(COM1+3,0x80);  /* set DLAB of line control reg */
+    outb(COM1,0x0c);    /* LS of divisor (48 -> 2400 bps */
+    outb(COM1+1,0x00);  /* MS of divisor */
+    outb(COM1+3,0x03);  /* reset DLAB */
+    outb(COM1+4,0x0b);  /* set DTR,RTS, OUT_2 */
+    outb(COM1+1,0x0d);  /* enable all intrs but writes */
+    inb(COM1);          /* read data port to reset things (?) */
 }
 
 /**
- * This function read a character from serial without interrupt enable mode 
+ * This function read a character from serial without interrupt enable mode
  *
  * @return the read char
  */
@@ -53,13 +53,13 @@ char rt_serial_getc(void)
 void rt_serial_putc(const char c)
 {
     int val;
-    
+
     while(1)
     {
-           if ((val = inb(COM1+COMSTATUS)) & THRE) 
+           if ((val = inb(COM1+COMSTATUS)) & THRE)
             break;
     }
-    
+
     outb(COM1+COMWRITE, c&0xff);
 }
 
diff --git a/bsp/x86/src/hello.c b/bsp/x86/src/hello.c
index a075f18ef1..b4018617b5 100644
--- a/bsp/x86/src/hello.c
+++ b/bsp/x86/src/hello.c
@@ -9,28 +9,28 @@ extern void rt_kprintf(const char* fmt,...);
 
 int add(int a, int b)
 {
-	return a+b;
+    return a+b;
 }
 
 int main(int argc, char* argv[])
 {
-	int i;
-	char str[32] = "Hello World\n";
+    int i;
+    char str[32] = "Hello World\n";
 
-	for(i=0; i<argc; i++)
-	{
-		printf("argv[%d]='%s'\n", i, argv[i]);
-	}
+    for(i=0; i<argc; i++)
+    {
+        printf("argv[%d]='%s'\n", i, argv[i]);
+    }
 
-	printf(str);
+    printf(str);
 
-	printf("g_str address is %ph\n",g_str);
-	puts(g_str);
+    printf("g_str address is %ph\n",g_str);
+    puts(g_str);
 
-	rt_kprintf("\nnative rt_kprintf a(%ph)=%d, b(%ph)=%d\n", &a, a, &b, b);
+    rt_kprintf("\nnative rt_kprintf a(%ph)=%d, b(%ph)=%d\n", &a, a, &b, b);
 
-	printf("%d+%d=%d\n", 4, 5, add(4, 5));
+    printf("%d+%d=%d\n", 4, 5, add(4, 5));
 
-	return 0xdeadbeef;
+    return 0xdeadbeef;
 }