Commit 47434847 authored by Antonino A. Daplas's avatar Antonino A. Daplas Committed by Linus Torvalds
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[PATCH] fbcon: Add ability to save/restore graphics state



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: default avatarAntonino Daplas <adaplas@pol.net>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 56f0d64d
......@@ -2191,11 +2191,14 @@ static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch)
ops->graphics = 1;
if (!blank) {
if (info->fbops->fb_save_state)
info->fbops->fb_save_state(info);
var.activate = FB_ACTIVATE_NOW | FB_ACTIVATE_FORCE;
fb_set_var(info, &var);
ops->graphics = 0;
ops->var = info->var;
}
} else if (info->fbops->fb_restore_state)
info->fbops->fb_restore_state(info);
}
if (!fbcon_is_inactive(vc, info)) {
......
......@@ -617,6 +617,12 @@ struct fb_ops {
/* perform fb specific mmap */
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
......
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