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[PATCH] fbcon: Add ability to save/restore graphics state

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Add hooks to save and restore the graphics state.  These hooks are called in
fbcon_blank() when entering/leaving KD_GRAPHICS mode.  This is needed by
savagefb at least so it can cooperate with savage_dri and by cyblafb.

State save/restoration can be full or partial.

Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Antonino A. Daplas 2005-12-12 22:17:16 -08:00 committed by Linus Torvalds
parent 56f0d64de8
commit 4743484718
2 changed files with 10 additions and 1 deletions
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5
drivers/video/console/fbcon.c
View File

@ -2191,11 +2191,14 @@ static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch)
ops->graphics = 1; ops->graphics = 1;
if (!blank) { if (!blank) {
if (info->fbops->fb_save_state)
info->fbops->fb_save_state(info);
var.activate = FB_ACTIVATE_NOW | FB_ACTIVATE_FORCE; var.activate = FB_ACTIVATE_NOW | FB_ACTIVATE_FORCE;
fb_set_var(info, &var); fb_set_var(info, &var);
ops->graphics = 0; ops->graphics = 0;
ops->var = info->var; ops->var = info->var;
} } else if (info->fbops->fb_restore_state)
info->fbops->fb_restore_state(info);
} }
if (!fbcon_is_inactive(vc, info)) { if (!fbcon_is_inactive(vc, info)) {

6
include/linux/fb.h
View File

@ -617,6 +617,12 @@ struct fb_ops {
/* perform fb specific mmap */ /* perform fb specific mmap */
int (*fb_mmap)(struct fb_info *info, struct file *file, struct vm_area_struct *vma); int (*fb_mmap)(struct fb_info *info, struct file *file, struct vm_area_struct *vma);
/* save current hardware state */
void (*fb_save_state)(struct fb_info *info);
/* restore saved state */
void (*fb_restore_state)(struct fb_info *info);
}; };
#ifdef CONFIG_FB_TILEBLITTING #ifdef CONFIG_FB_TILEBLITTING