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-rw-r--r--drivers/firmware/pcdp.c2
-rw-r--r--drivers/video/console/vgacon.c68
2 files changed, 41 insertions, 29 deletions
diff --git a/drivers/firmware/pcdp.c b/drivers/firmware/pcdp.c
index 715a45442d1c..667a595373b2 100644
--- a/drivers/firmware/pcdp.c
+++ b/drivers/firmware/pcdp.c
@@ -72,7 +72,7 @@ setup_vga_console(struct pcdp_device *dev)
return -ENODEV;
}
- conswitchp = &vga_con;
+ vgacon_register_screen(&screen_info);
printk(KERN_INFO "PCDP: VGA console\n");
return 0;
#else
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 7ad047bcae17..8ef1579fa57f 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -89,6 +89,8 @@ static int vga_video_font_height;
static int vga_scan_lines __read_mostly;
static unsigned int vga_rolled_over; /* last vc_origin offset before wrap */
+static struct screen_info *vga_si;
+
static bool vga_hardscroll_enabled;
static bool vga_hardscroll_user_enable = true;
@@ -153,8 +155,9 @@ static const char *vgacon_startup(void)
u16 saved1, saved2;
volatile u16 *p;
- if (screen_info.orig_video_isVGA == VIDEO_TYPE_VLFB ||
- screen_info.orig_video_isVGA == VIDEO_TYPE_EFI) {
+ if (!vga_si ||
+ vga_si->orig_video_isVGA == VIDEO_TYPE_VLFB ||
+ vga_si->orig_video_isVGA == VIDEO_TYPE_EFI) {
no_vga:
#ifdef CONFIG_DUMMY_CONSOLE
conswitchp = &dummy_con;
@@ -164,29 +167,29 @@ static const char *vgacon_startup(void)
#endif
}
- /* boot_params.screen_info reasonably initialized? */
- if ((screen_info.orig_video_lines == 0) ||
- (screen_info.orig_video_cols == 0))
+ /* vga_si reasonably initialized? */
+ if ((vga_si->orig_video_lines == 0) ||
+ (vga_si->orig_video_cols == 0))
goto no_vga;
/* VGA16 modes are not handled by VGACON */
- if ((screen_info.orig_video_mode == 0x0D) || /* 320x200/4 */
- (screen_info.orig_video_mode == 0x0E) || /* 640x200/4 */
- (screen_info.orig_video_mode == 0x10) || /* 640x350/4 */
- (screen_info.orig_video_mode == 0x12) || /* 640x480/4 */
- (screen_info.orig_video_mode == 0x6A)) /* 800x600/4 (VESA) */
+ if ((vga_si->orig_video_mode == 0x0D) || /* 320x200/4 */
+ (vga_si->orig_video_mode == 0x0E) || /* 640x200/4 */
+ (vga_si->orig_video_mode == 0x10) || /* 640x350/4 */
+ (vga_si->orig_video_mode == 0x12) || /* 640x480/4 */
+ (vga_si->orig_video_mode == 0x6A)) /* 800x600/4 (VESA) */
goto no_vga;
- vga_video_num_lines = screen_info.orig_video_lines;
- vga_video_num_columns = screen_info.orig_video_cols;
+ vga_video_num_lines = vga_si->orig_video_lines;
+ vga_video_num_columns = vga_si->orig_video_cols;
vgastate.vgabase = NULL;
- if (screen_info.orig_video_mode == 7) {
+ if (vga_si->orig_video_mode == 7) {
/* Monochrome display */
vga_vram_base = 0xb0000;
vga_video_port_reg = VGA_CRT_IM;
vga_video_port_val = VGA_CRT_DM;
- if ((screen_info.orig_video_ega_bx & 0xff) != 0x10) {
+ if ((vga_si->orig_video_ega_bx & 0xff) != 0x10) {
static struct resource ega_console_resource =
{ .name = "ega",
.flags = IORESOURCE_IO,
@@ -223,12 +226,12 @@ static const char *vgacon_startup(void)
vga_vram_base = 0xb8000;
vga_video_port_reg = VGA_CRT_IC;
vga_video_port_val = VGA_CRT_DC;
- if ((screen_info.orig_video_ega_bx & 0xff) != 0x10) {
+ if ((vga_si->orig_video_ega_bx & 0xff) != 0x10) {
int i;
vga_vram_size = 0x8000;
- if (!screen_info.orig_video_isVGA) {
+ if (!vga_si->orig_video_isVGA) {
static struct resource ega_console_resource =
{ .name = "ega",
.flags = IORESOURCE_IO,
@@ -319,14 +322,14 @@ static const char *vgacon_startup(void)
|| vga_video_type == VIDEO_TYPE_VGAC
|| vga_video_type == VIDEO_TYPE_EGAM) {
vga_hardscroll_enabled = vga_hardscroll_user_enable;
- vga_default_font_height = screen_info.orig_video_points;
- vga_video_font_height = screen_info.orig_video_points;
+ vga_default_font_height = vga_si->orig_video_points;
+ vga_video_font_height = vga_si->orig_video_points;
/* This may be suboptimal but is a safe bet - go with it */
vga_scan_lines =
vga_video_font_height * vga_video_num_lines;
}
- vgacon_xres = screen_info.orig_video_cols * VGA_FONTWIDTH;
+ vgacon_xres = vga_si->orig_video_cols * VGA_FONTWIDTH;
vgacon_yres = vga_scan_lines;
return display_desc;
@@ -371,7 +374,7 @@ static void vgacon_init(struct vc_data *c, int init)
/* Only set the default if the user didn't deliberately override it */
if (global_cursor_default == -1)
global_cursor_default =
- !(screen_info.flags & VIDEO_FLAGS_NOCURSOR);
+ !(vga_si->flags & VIDEO_FLAGS_NOCURSOR);
}
static void vgacon_deinit(struct vc_data *c)
@@ -589,7 +592,7 @@ static int vgacon_switch(struct vc_data *c)
{
int x = c->vc_cols * VGA_FONTWIDTH;
int y = c->vc_rows * c->vc_cell_height;
- int rows = screen_info.orig_video_lines * vga_default_font_height/
+ int rows = vga_si->orig_video_lines * vga_default_font_height/
c->vc_cell_height;
/*
* We need to save screen size here as it's the only way
@@ -609,7 +612,7 @@ static int vgacon_switch(struct vc_data *c)
if ((vgacon_xres != x || vgacon_yres != y) &&
(!(vga_video_num_columns % 2) &&
- vga_video_num_columns <= screen_info.orig_video_cols &&
+ vga_video_num_columns <= vga_si->orig_video_cols &&
vga_video_num_lines <= rows))
vgacon_doresize(c, c->vc_cols, c->vc_rows);
}
@@ -1056,13 +1059,13 @@ static int vgacon_resize(struct vc_data *c, unsigned int width,
* Ho ho! Someone (svgatextmode, eh?) may have reprogrammed
* the video mode! Set the new defaults then and go away.
*/
- screen_info.orig_video_cols = width;
- screen_info.orig_video_lines = height;
+ vga_si->orig_video_cols = width;
+ vga_si->orig_video_lines = height;
vga_default_font_height = c->vc_cell_height;
return 0;
}
- if (width % 2 || width > screen_info.orig_video_cols ||
- height > (screen_info.orig_video_lines * vga_default_font_height)/
+ if (width % 2 || width > vga_si->orig_video_cols ||
+ height > (vga_si->orig_video_lines * vga_default_font_height)/
c->vc_cell_height)
return -EINVAL;
@@ -1092,8 +1095,8 @@ static void vgacon_save_screen(struct vc_data *c)
* console initialization routines.
*/
vga_bootup_console = 1;
- c->state.x = screen_info.orig_x;
- c->state.y = screen_info.orig_y;
+ c->state.x = vga_si->orig_x;
+ c->state.y = vga_si->orig_y;
}
/* We can't copy in more than the size of the video buffer,
@@ -1186,4 +1189,13 @@ const struct consw vga_con = {
};
EXPORT_SYMBOL(vga_con);
+void vgacon_register_screen(struct screen_info *si)
+{
+ if (!si || vga_si)
+ return;
+
+ conswitchp = &vga_con;
+ vga_si = si;
+}
+
MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2024-06-23 01:15:39 +0000