1 // SPDX-License-Identifier: GPL-2.0-only
2 /* -*- linux-c -*- ------------------------------------------------------- *
5  *   Copyright 2007 rPath, Inc. - All Rights Reserved
8  * ----------------------------------------------------------------------- */
11  * Select video mode
17 #include "video.h"
44 	/* N.B.: the saving of the video page here is a bit silly,  in store_video_mode()
56  * Store the video mode parameters for later usage by the kernel.
58  * parameters in the default 80x25 mode -- these are set directly,
66 	/* For graphics mode, it is up to the mode-setting driver  in store_mode_params()
67 	   (currently only video-vesa.c) to store the parameters */  in store_mode_params()
75 		/* MDA, HGC, or VGA in monochrome mode */  in store_mode_params()
111 				len--;  in get_entry()
131 		v += (key > '9') ? key-'a'+10 : key-'0';  in get_entry()
149 		nmodes += card->nmodes;  in display_menu()
156 		puts("Mode: Resolution:  Type: ");  in display_menu()
162 		mi = card->modes;  in display_menu()
163 		for (i = 0; i < card->nmodes; i++, mi++) {  in display_menu()
165 			int visible = mi->x && mi->y;  in display_menu()
166 			u16 mode_id = mi->mode ? mi->mode :  in display_menu()
167 				(mi->y << 8)+mi->x;  in display_menu()
170 				continue; /* Hidden mode */  in display_menu()
172 			if (mi->depth)  in display_menu()
173 				sprintf(resbuf, "%dx%d", mi->y, mi->depth);  in display_menu()
175 				sprintf(resbuf, "%d", mi->y);  in display_menu()
177 			printf("%c %03X %4dx%-7s %-6s",  in display_menu()
178 			       ch, mode_id, mi->x, resbuf, card->card_name);  in display_menu()
197 #define H(x)	((x)-'a'+10)
205 	puts("Press <ENTER> to see video modes available, "  in mode_menu()
222 		puts("Enter a video mode or \"scan\" to scan for "  in mode_menu()
267 		return;		/* Can't restore onto a graphic mode */  in restore_screen()
283 			npad = (xs < saved.x) ? 0 : xs-saved.x;  in restore_screen()
304 		saved.curx = xs-1;  in restore_screen()
306 		saved.cury = ys-1;  in restore_screen()
319 	u16 mode = boot_params.hdr.vid_mode;  in set_video()  local
328 		if (mode == ASK_VGA)  in set_video()
329 			mode = mode_menu();  in set_video()
331 		if (!set_mode(mode))  in set_video()
334 		printf("Undefined video mode number: %x\n", mode);  in set_video()
335 		mode = ASK_VGA;  in set_video()
337 	boot_params.hdr.vid_mode = mode;  in set_video()