Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 7726e9e1 authored by Antonino A. Daplas's avatar Antonino A. Daplas Committed by Linus Torvalds
Browse files

[PATCH] fbdev: Add fbset -a support 



Add capability to fbdev to listen to the FB_ACTIVATE_ALL flag.  If set, it
notifies fbcon that all consoles must be set to the current var.

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 cb2e87a6

drivers/video/console/fbcon.c

+48 −0
Original line number Diff line number Diff line
@@ -2593,6 +2593,51 @@ static void fbcon_modechanged(struct fb_info *info) 
	}

}



static void fbcon_set_all_vcs(struct fb_info *info)

{

	struct fbcon_ops *ops = info->fbcon_par;

	struct vc_data *vc;

	struct display *p;

	int i, rows, cols;



	if (!ops || ops->currcon < 0)

		return;



	for (i = 0; i < MAX_NR_CONSOLES; i++) {

		vc = vc_cons[i].d;

		if (!vc || vc->vc_mode != KD_TEXT ||

		    registered_fb[con2fb_map[i]] != info)

			continue;



		p = &fb_display[vc->vc_num];



		info->var.xoffset = info->var.yoffset = p->yscroll = 0;

		var_to_display(p, &info->var, info);

		cols = info->var.xres / vc->vc_font.width;

		rows = info->var.yres / vc->vc_font.height;

		vc_resize(vc, cols, rows);



		if (CON_IS_VISIBLE(vc)) {

			updatescrollmode(p, info, vc);

			scrollback_max = 0;

			scrollback_current = 0;

			update_var(vc->vc_num, info);

			fbcon_set_palette(vc, color_table);

			update_screen(vc);

			if (softback_buf) {

				int l = fbcon_softback_size / vc->vc_size_row;

				if (l > 5)

					softback_end = softback_buf + l * vc->vc_size_row;

				else {

					/* Smaller scrollback makes no sense, and 0

					   would screw the operation totally */

					softback_top = 0;

				}

			}

		}

	}

}



static int fbcon_mode_deleted(struct fb_info *info,

			      struct fb_videomode *mode)

{
@@ -2708,6 +2753,9 @@ static int fbcon_event_notify(struct notifier_block *self, 
	case FB_EVENT_MODE_CHANGE:

		fbcon_modechanged(info);

		break;

	case FB_EVENT_MODE_CHANGE_ALL:

		fbcon_set_all_vcs(info);

		break;

	case FB_EVENT_MODE_DELETE:

		mode = event->data;

		ret = fbcon_mode_deleted(info, mode);

drivers/video/fbmem.c

+4 −2
Original line number Diff line number Diff line
@@ -684,11 +684,13 @@ fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var) 


			if (!err && (flags & FBINFO_MISC_USEREVENT)) {

				struct fb_event event;

				int evnt = (var->activate & FB_ACTIVATE_ALL) ?

					FB_EVENT_MODE_CHANGE_ALL :

					FB_EVENT_MODE_CHANGE;



				info->flags &= ~FBINFO_MISC_USEREVENT;

				event.info = info;

				notifier_call_chain(&fb_notifier_list,

						    FB_EVENT_MODE_CHANGE,

				notifier_call_chain(&fb_notifier_list, evnt,

						    &event);

			}

		}

include/linux/fb.h

+3 −0
Original line number Diff line number Diff line
@@ -495,6 +495,9 @@ struct fb_cursor_user { 
#define FB_EVENT_BLANK                  0x08

/*      Private modelist is to be replaced */

#define FB_EVENT_NEW_MODELIST           0x09

/*	The resolution of the passed in fb_info about to change and

        all vc's should be changed         */

#define FB_EVENT_MODE_CHANGE_ALL	0x0A



struct fb_event {

	struct fb_info *info;