diff options
Diffstat (limited to 'drivers/video/console/vgacon.c')
| -rw-r--r-- | drivers/video/console/vgacon.c | 43 |
1 files changed, 29 insertions, 14 deletions
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c index e64d42e2449e..0a2c10a1abf8 100644 --- a/drivers/video/console/vgacon.c +++ b/drivers/video/console/vgacon.c @@ -33,13 +33,11 @@ * more details. */ -#include <linux/config.h> #include <linux/module.h> #include <linux/types.h> #include <linux/sched.h> #include <linux/fs.h> #include <linux/kernel.h> -#include <linux/tty.h> #include <linux/console.h> #include <linux/string.h> #include <linux/kd.h> @@ -49,6 +47,7 @@ #include <linux/spinlock.h> #include <linux/ioport.h> #include <linux/init.h> +#include <linux/screen_info.h> #include <linux/smp_lock.h> #include <video/vga.h> #include <asm/io.h> @@ -114,6 +113,7 @@ static int vga_512_chars; static int vga_video_font_height; static int vga_scan_lines; static unsigned int vga_rolled_over = 0; +static int vga_init_done; static int __init no_scroll(char *str) { @@ -190,7 +190,7 @@ static void vgacon_scrollback_init(int pitch) } } -static void __init vgacon_scrollback_startup(void) +static void vgacon_scrollback_startup(void) { vgacon_scrollback = alloc_bootmem(CONFIG_VGACON_SOFT_SCROLLBACK_SIZE * 1024); @@ -355,7 +355,7 @@ static int vgacon_scrolldelta(struct vc_data *c, int lines) } #endif /* CONFIG_VGACON_SOFT_SCROLLBACK */ -static const char __init *vgacon_startup(void) +static const char *vgacon_startup(void) { const char *display_desc = NULL; u16 saved1, saved2; @@ -389,7 +389,7 @@ static const char __init *vgacon_startup(void) vga_video_port_val = VGA_CRT_DM; if ((ORIG_VIDEO_EGA_BX & 0xff) != 0x10) { static struct resource ega_console_resource = - { "ega", 0x3B0, 0x3BF }; + { .name = "ega", .start = 0x3B0, .end = 0x3BF }; vga_video_type = VIDEO_TYPE_EGAM; vga_vram_size = 0x8000; display_desc = "EGA+"; @@ -397,9 +397,9 @@ static const char __init *vgacon_startup(void) &ega_console_resource); } else { static struct resource mda1_console_resource = - { "mda", 0x3B0, 0x3BB }; + { .name = "mda", .start = 0x3B0, .end = 0x3BB }; static struct resource mda2_console_resource = - { "mda", 0x3BF, 0x3BF }; + { .name = "mda", .start = 0x3BF, .end = 0x3BF }; vga_video_type = VIDEO_TYPE_MDA; vga_vram_size = 0x2000; display_desc = "*MDA"; @@ -422,14 +422,14 @@ static const char __init *vgacon_startup(void) if (!ORIG_VIDEO_ISVGA) { static struct resource ega_console_resource - = { "ega", 0x3C0, 0x3DF }; + = { .name = "ega", .start = 0x3C0, .end = 0x3DF }; vga_video_type = VIDEO_TYPE_EGAC; display_desc = "EGA"; request_resource(&ioport_resource, &ega_console_resource); } else { static struct resource vga_console_resource - = { "vga+", 0x3C0, 0x3DF }; + = { .name = "vga+", .start = 0x3C0, .end = 0x3DF }; vga_video_type = VIDEO_TYPE_VGAC; display_desc = "VGA+"; request_resource(&ioport_resource, @@ -473,7 +473,7 @@ static const char __init *vgacon_startup(void) } } else { static struct resource cga_console_resource = - { "cga", 0x3D4, 0x3D5 }; + { .name = "cga", .start = 0x3D4, .end = 0x3D5 }; vga_video_type = VIDEO_TYPE_CGA; vga_vram_size = 0x2000; display_desc = "*CGA"; @@ -523,7 +523,12 @@ static const char __init *vgacon_startup(void) vgacon_xres = ORIG_VIDEO_COLS * VGA_FONTWIDTH; vgacon_yres = vga_scan_lines; - vgacon_scrollback_startup(); + + if (!vga_init_done) { + vgacon_scrollback_startup(); + vga_init_done = 1; + } + return display_desc; } @@ -531,10 +536,20 @@ static void vgacon_init(struct vc_data *c, int init) { unsigned long p; - /* We cannot be loaded as a module, therefore init is always 1 */ + /* + * We cannot be loaded as a module, therefore init is always 1, + * but vgacon_init can be called more than once, and init will + * not be 1. + */ c->vc_can_do_color = vga_can_do_color; - c->vc_cols = vga_video_num_columns; - c->vc_rows = vga_video_num_lines; + + /* set dimensions manually if init != 0 since vc_resize() will fail */ + if (init) { + c->vc_cols = vga_video_num_columns; + c->vc_rows = vga_video_num_lines; + } else + vc_resize(c, vga_video_num_columns, vga_video_num_lines); + c->vc_scan_lines = vga_scan_lines; c->vc_font.height = vga_video_font_height; c->vc_complement_mask = 0x7700; |
