#include "video.h"
#include "vesa.h"
-/*
- * Mode list variables
- */
-static struct card_info cards[]; /* List of cards to probe for */
-
-/*
- * Common variables
- */
-int adapter; /* 0=CGA/MDA/HGC, 1=EGA, 2=VGA+ */
-u16 video_segment;
-int force_x, force_y; /* Don't query the BIOS for cols/rows */
-
-int do_restore = 0; /* Screen contents changed during mode flip */
-int graphic_mode; /* Graphic mode with linear frame buffer */
-
static void store_cursor_position(void)
{
u16 curpos;
boot_params.screen_info.orig_video_lines = y;
}
-/* Probe the video drivers and have them generate their mode lists. */
-static void probe_cards(int unsafe)
-{
- struct card_info *card;
- static u8 probed[2];
-
- if (probed[unsafe])
- return;
-
- probed[unsafe] = 1;
-
- for (card = video_cards; card < video_cards_end; card++) {
- if (card->unsafe == unsafe) {
- if (card->probe)
- card->nmodes = card->probe();
- else
- card->nmodes = 0;
- }
- }
-}
-
-/* Test if a mode is defined */
-int mode_defined(u16 mode)
-{
- struct card_info *card;
- struct mode_info *mi;
- int i;
-
- for (card = video_cards; card < video_cards_end; card++) {
- mi = card->modes;
- for (i = 0; i < card->nmodes; i++, mi++) {
- if (mi->mode == mode)
- return 1;
- }
- }
-
- return 0;
-}
-
-/* Set mode (without recalc) */
-static int raw_set_mode(u16 mode, u16 *real_mode)
-{
- int nmode, i;
- struct card_info *card;
- struct mode_info *mi;
-
- /* Drop the recalc bit if set */
- mode &= ~VIDEO_RECALC;
-
- /* Scan for mode based on fixed ID, position, or resolution */
- nmode = 0;
- for (card = video_cards; card < video_cards_end; card++) {
- mi = card->modes;
- for (i = 0; i < card->nmodes; i++, mi++) {
- int visible = mi->x || mi->y;
-
- if ((mode == nmode && visible) ||
- mode == mi->mode ||
- mode == (mi->y << 8)+mi->x) {
- *real_mode = mi->mode;
- return card->set_mode(mi);
- }
-
- if (visible)
- nmode++;
- }
- }
-
- /* Nothing found? Is it an "exceptional" (unprobed) mode? */
- for (card = video_cards; card < video_cards_end; card++) {
- if (mode >= card->xmode_first &&
- mode < card->xmode_first+card->xmode_n) {
- struct mode_info mix;
- *real_mode = mix.mode = mode;
- mix.x = mix.y = 0;
- return card->set_mode(&mix);
- }
- }
-
- /* Otherwise, failure... */
- return -1;
-}
-
-/*
- * Recalculate the vertical video cutoff (hack!)
- */
-static void vga_recalc_vertical(void)
-{
- unsigned int font_size, rows;
- u16 crtc;
- u8 pt, ov;
-
- set_fs(0);
- font_size = rdfs8(0x485); /* BIOS: font size (pixels) */
- rows = force_y ? force_y : rdfs8(0x484)+1; /* Text rows */
-
- rows *= font_size; /* Visible scan lines */
- rows--; /* ... minus one */
-
- crtc = vga_crtc();
-
- pt = in_idx(crtc, 0x11);
- pt &= ~0x80; /* Unlock CR0-7 */
- out_idx(pt, crtc, 0x11);
-
- out_idx((u8)rows, crtc, 0x12); /* Lower height register */
-
- ov = in_idx(crtc, 0x07); /* Overflow register */
- ov &= 0xbd;
- ov |= (rows >> (8-1)) & 0x02;
- ov |= (rows >> (9-6)) & 0x40;
- out_idx(ov, crtc, 0x07);
-}
-
-/* Set mode (with recalc if specified) */
-static int set_mode(u16 mode)
-{
- int rv;
- u16 real_mode;
-
- /* Very special mode numbers... */
- if (mode == VIDEO_CURRENT_MODE)
- return 0; /* Nothing to do... */
- else if (mode == NORMAL_VGA)
- mode = VIDEO_80x25;
- else if (mode == EXTENDED_VGA)
- mode = VIDEO_8POINT;
-
- rv = raw_set_mode(mode, &real_mode);
- if (rv)
- return rv;
-
- if (mode & VIDEO_RECALC)
- vga_recalc_vertical();
-
- /* Save the canonical mode number for the kernel, not
- an alias, size specification or menu position */
- boot_params.hdr.vid_mode = real_mode;
- return 0;
-}
-
static unsigned int get_entry(void)
{
char entry_buf[4];
struct mode_info *mi;
char ch;
int i;
+ int nmodes;
+ int modes_per_line;
+ int col;
+
+ nmodes = 0;
+ for (card = video_cards; card < video_cards_end; card++)
+ nmodes += card->nmodes;
- puts("Mode: COLSxROWS:\n");
+ modes_per_line = 1;
+ if (nmodes >= 20)
+ modes_per_line = 3;
+ for (col = 0; col < modes_per_line; col++)
+ puts("Mode: Resolution: Type: ");
+ putchar('\n');
+
+ col = 0;
ch = '0';
for (card = video_cards; card < video_cards_end; card++) {
mi = card->modes;
for (i = 0; i < card->nmodes; i++, mi++) {
+ char resbuf[32];
int visible = mi->x && mi->y;
u16 mode_id = mi->mode ? mi->mode :
(mi->y << 8)+mi->x;
if (!visible)
continue; /* Hidden mode */
- printf("%c %04X %3dx%-3d %s\n",
- ch, mode_id, mi->x, mi->y, card->card_name);
+ if (mi->depth)
+ sprintf(resbuf, "%dx%d", mi->y, mi->depth);
+ else
+ sprintf(resbuf, "%d", mi->y);
+
+ printf("%c %03X %4dx%-7s %-6s",
+ ch, mode_id, mi->x, resbuf, card->card_name);
+ col++;
+ if (col >= modes_per_line) {
+ putchar('\n');
+ col = 0;
+ }
if (ch == '9')
ch = 'a';
ch++;
}
}
+ if (col)
+ putchar('\n');
}
#define H(x) ((x)-'a'+10)
saved.curx = boot_params.screen_info.orig_x;
saved.cury = boot_params.screen_info.orig_y;
- if (heap_free() < saved.x*saved.y*sizeof(u16)+512)
+ if (!heap_free(saved.x*saved.y*sizeof(u16)+512))
return; /* Not enough heap to save the screen */
saved.data = GET_HEAP(u16, saved.x*saved.y);
printf("Undefined video mode number: %x\n", mode);
mode = ASK_VGA;
}
+ boot_params.hdr.vid_mode = mode;
vesa_store_edid();
store_mode_params();
git.samba.org / sfrench / cifs-2.6.git / blobdiff