diff options
Diffstat (limited to 'arch/i386/lib/video.c')
| -rw-r--r-- | arch/i386/lib/video.c | 48 | 
1 files changed, 20 insertions, 28 deletions
| diff --git a/arch/i386/lib/video.c b/arch/i386/lib/video.c index c58ed104c..b29075c49 100644 --- a/arch/i386/lib/video.c +++ b/arch/i386/lib/video.c @@ -1,6 +1,6 @@  /*   * (C) Copyright 2002 - * Daniel Engström, Omicron Ceti AB, daniel@omicron.se + * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>   *   * See file CREDITS for list of people who contributed to this   * project. @@ -30,7 +30,6 @@  #include <asm/io.h>  #include <asm/pci.h> -  /* basic textmode I/O from linux kernel */  static char *vidmem = (char *)0xb8000;  static int vidport; @@ -42,9 +41,9 @@ static void beep(int dur)  	int i;  	outb_p(3, 0x61); -	for (i=0;i<10*dur;i++) { +	for (i = 0; i < 10*dur; i++)  		udelay(1000); -	} +  	outb_p(0, 0x61);  } @@ -52,8 +51,8 @@ static void scroll(void)  {  	int i; -	memcpy ( vidmem, vidmem + cols * 2, ( lines - 1 ) * cols * 2 ); -	for ( i = ( lines - 1 ) * cols * 2; i < lines * cols * 2; i += 2 ) +	memcpy(vidmem, vidmem + cols * 2, (lines - 1) * cols * 2); +	for (i = (lines - 1) * cols * 2; i < lines * cols * 2; i += 2)  		vidmem[i] = ' ';  } @@ -61,14 +60,14 @@ static void __video_putc(const char c, int *x, int *y)  {  	if (c == '\n') {  		(*x) = 0; -		if ( ++(*y) >= lines ) { +		if (++(*y) >= lines) {  			scroll();  			(*y)--;  		}  	} else if (c == '\b') {  		if ((*x) != 0) {  			--(*x); -			vidmem [ ( (*x) + cols * (*y) ) * 2 ] = ' '; +			vidmem[((*x) + cols * (*y)) * 2] = ' ';  		}  	} else if (c == '\r') {  		(*x) = 0; @@ -106,16 +105,15 @@ static void __video_putc(const char c, int *x, int *y)  		}  	} else if (c == '\f') {  		int i; -		for (i=0;i<lines*cols*2;i+=2) { +		for (i = 0; i < lines * cols * 2; i += 2)  			vidmem[i] = 0; -		}  		(*x) = 0;  		(*y) = 0;  	} else { -		vidmem [ ( (*x) + cols * (*y) ) * 2 ] = c; -		if ( ++(*x) >= cols ) { +		vidmem[((*x) + cols * (*y)) * 2] = c; +		if (++(*x) >= cols) {  			(*x) = 0; -			if ( ++(*y) >= lines ) { +			if (++(*y) >= lines) {  				scroll();  				(*y)--;  			} @@ -150,9 +148,8 @@ static void video_puts(const char *s)  	x = orig_x;  	y = orig_y; -	while ( ( c = *s++ ) != '\0' ) { +	while ((c = *s++) != '\0')  		__video_putc(c, &x, &y); -	}  	orig_x = x;  	orig_y = y; @@ -189,10 +186,8 @@ int video_init(void)  #if 0  	printf("pos %x %d %d\n", pos, orig_x, orig_y);  #endif -	if (orig_y > lines) { +	if (orig_y > lines)  		orig_x = orig_y =0; -	} -  	memset(&vga_dev, 0, sizeof(vga_dev));  	strcpy(vga_dev.name, "vga"); @@ -203,13 +198,11 @@ int video_init(void)  	vga_dev.tstc  = NULL;              /* 'tstc' function */  	vga_dev.getc  = NULL;              /* 'getc' function */ -	if (stdio_register(&vga_dev) == 0) { -	    return 1; -	} +	if (stdio_register(&vga_dev) == 0) +		return 1; -	if (i8042_kbd_init()) { +	if (i8042_kbd_init())  		return 1; -	}  	memset(&kbd_dev, 0, sizeof(kbd_dev));  	strcpy(kbd_dev.name, "kbd"); @@ -220,18 +213,17 @@ int video_init(void)  	kbd_dev.tstc  = i8042_tstc;  /* 'tstc' function */  	kbd_dev.getc  = i8042_getc;  /* 'getc' function */ -	if (stdio_register(&kbd_dev) == 0) { -	    return 1; -	} +	if (stdio_register(&kbd_dev) == 0) +		return 1; +  	return 0;  }  int drv_video_init(void)  { -	if (video_bios_init()) { +	if (video_bios_init())  		return 1; -	}  	return video_init();  } |