1998-09-15 18:16:39 +00:00
|
|
|
|
/*-
|
1998-09-25 11:55:46 +00:00
|
|
|
|
* Copyright (c) 1998 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
|
|
|
|
|
* Copyright (c) 1992-1998 S<EFBFBD>ren Schmidt
|
1998-09-15 18:16:39 +00:00
|
|
|
|
* All rights reserved.
|
|
|
|
|
*
|
|
|
|
|
* Redistribution and use in source and binary forms, with or without
|
|
|
|
|
* modification, are permitted provided that the following conditions
|
|
|
|
|
* are met:
|
|
|
|
|
* 1. Redistributions of source code must retain the above copyright
|
1998-09-25 11:55:46 +00:00
|
|
|
|
* notice, this list of conditions and the following disclaimer as
|
|
|
|
|
* the first lines of this file unmodified.
|
1998-09-15 18:16:39 +00:00
|
|
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
|
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
|
|
|
* documentation and/or other materials provided with the distribution.
|
1998-09-25 11:55:46 +00:00
|
|
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
|
|
|
* derived from this software without specific prior written permission.
|
1998-09-15 18:16:39 +00:00
|
|
|
|
*
|
1998-09-25 11:55:46 +00:00
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
|
|
|
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
|
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
|
|
|
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
|
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
|
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
|
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
|
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
|
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
|
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
1998-09-15 18:16:39 +00:00
|
|
|
|
*
|
1998-09-24 13:20:47 +00:00
|
|
|
|
* $Id: videoio.c,v 1.2 1998/09/23 09:59:00 yokota Exp $
|
1998-09-15 18:16:39 +00:00
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#include "sc.h"
|
|
|
|
|
#include "opt_syscons.h"
|
|
|
|
|
|
|
|
|
|
#if NSC > 0
|
|
|
|
|
|
|
|
|
|
#include <sys/param.h>
|
|
|
|
|
#include <sys/systm.h>
|
|
|
|
|
#include <sys/kernel.h>
|
|
|
|
|
#include <vm/vm.h>
|
|
|
|
|
#include <vm/pmap.h>
|
|
|
|
|
|
|
|
|
|
#include <machine/clock.h>
|
|
|
|
|
#include <machine/console.h>
|
|
|
|
|
#include <machine/md_var.h>
|
|
|
|
|
#include <machine/pc/bios.h>
|
|
|
|
|
|
|
|
|
|
#include <i386/isa/isa.h>
|
|
|
|
|
#include <i386/isa/videoio.h>
|
|
|
|
|
|
|
|
|
|
/* this should really be in `rtc.h' */
|
|
|
|
|
#define RTC_EQUIPMENT 0x14
|
|
|
|
|
|
|
|
|
|
/* video adapter state buffer */
|
|
|
|
|
struct adp_state {
|
|
|
|
|
int sig;
|
|
|
|
|
#define V_STATE_SIG 0x736f6962
|
|
|
|
|
u_char regs[V_MODE_PARAM_SIZE];
|
|
|
|
|
};
|
|
|
|
|
typedef struct adp_state adp_state_t;
|
|
|
|
|
|
|
|
|
|
/* video adapter information */
|
|
|
|
|
#define DCC_MONO 0
|
|
|
|
|
#define DCC_CGA40 1
|
|
|
|
|
#define DCC_CGA80 2
|
|
|
|
|
#define DCC_EGAMONO 3
|
|
|
|
|
#define DCC_EGA40 4
|
|
|
|
|
#define DCC_EGA80 5
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* NOTE: `va_window' should have a virtual address, but is initialized
|
|
|
|
|
* with a physical address in the following table, as verify_adapter()
|
|
|
|
|
* will perform address conversion at run-time.
|
|
|
|
|
*/
|
|
|
|
|
static video_adapter_t adapter_init_value[] = {
|
|
|
|
|
{ 0, KD_MONO, 0, MONO_BASE, 0xb0000, 32, 32, 0, 0, 0, 7, 0 },
|
|
|
|
|
{ 0, KD_CGA, V_ADP_COLOR, COLOR_BASE, 0xb8000, 32, 32, 0, 0, 0, 3, 0 },
|
|
|
|
|
{ 0, KD_CGA, V_ADP_COLOR, COLOR_BASE, 0xb8000, 32, 32, 0, 0, 0, 3, 0 },
|
|
|
|
|
{ 0, KD_EGA, 0, MONO_BASE, 0xb0000, 32, 32, 0, 0, 0, 7, 0 },
|
|
|
|
|
{ 0, KD_EGA, V_ADP_COLOR, COLOR_BASE, 0xb8000, 32, 32, 0, 0, 0, 3, 0 },
|
|
|
|
|
{ 0, KD_EGA, V_ADP_COLOR, COLOR_BASE, 0xb8000, 32, 32, 0, 0, 0, 3, 0 },
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static video_adapter_t adapter[V_MAX_ADAPTERS];
|
|
|
|
|
static int adapters = 0;
|
|
|
|
|
|
|
|
|
|
/* VGA function entries */
|
|
|
|
|
static vi_init_t vid_init;
|
|
|
|
|
static vi_adapter_t vid_adapter;
|
|
|
|
|
static vi_get_info_t vid_get_info;
|
|
|
|
|
static vi_query_mode_t vid_query_mode;
|
|
|
|
|
static vi_set_mode_t vid_set_mode;
|
|
|
|
|
static vi_save_font_t vid_save_font;
|
|
|
|
|
static vi_load_font_t vid_load_font;
|
|
|
|
|
static vi_show_font_t vid_show_font;
|
|
|
|
|
static vi_save_palette_t vid_save_palette;
|
|
|
|
|
static vi_load_palette_t vid_load_palette;
|
|
|
|
|
static vi_set_border_t vid_set_border;
|
|
|
|
|
static vi_save_state_t vid_save_state;
|
|
|
|
|
static vi_load_state_t vid_load_state;
|
|
|
|
|
static vi_set_win_org_t vid_set_origin;
|
|
|
|
|
static vi_read_hw_cursor_t vid_read_hw_cursor;
|
|
|
|
|
static vi_set_hw_cursor_t vid_set_hw_cursor;
|
|
|
|
|
static vi_diag_t vid_diag;
|
|
|
|
|
|
|
|
|
|
struct vidsw biosvidsw = {
|
|
|
|
|
vid_init, vid_adapter, vid_get_info, vid_query_mode,
|
|
|
|
|
vid_set_mode, vid_save_font, vid_load_font, vid_show_font,
|
|
|
|
|
vid_save_palette,vid_load_palette,vid_set_border,vid_save_state,
|
|
|
|
|
vid_load_state, vid_set_origin, vid_read_hw_cursor, vid_set_hw_cursor,
|
|
|
|
|
vid_diag,
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* VGA BIOS standard video modes */
|
|
|
|
|
#define EOT (-1)
|
|
|
|
|
#define NA (-2)
|
|
|
|
|
|
|
|
|
|
static video_info_t bios_vmode[] = {
|
|
|
|
|
/* CGA */
|
|
|
|
|
{ M_B40x25, V_INFO_COLOR, 40, 25, 8, 8, 2, 1, 0xb8000, 32, 32, 0, 32 },
|
|
|
|
|
{ M_C40x25, V_INFO_COLOR, 40, 25, 8, 8, 4, 1, 0xb8000, 32, 32, 0, 32 },
|
|
|
|
|
{ M_B80x25, V_INFO_COLOR, 80, 25, 8, 8, 2, 1, 0xb8000, 32, 32, 0, 32 },
|
|
|
|
|
{ M_C80x25, V_INFO_COLOR, 80, 25, 8, 8, 4, 1, 0xb8000, 32, 32, 0, 32 },
|
|
|
|
|
/* EGA */
|
|
|
|
|
{ M_ENH_B40x25, V_INFO_COLOR, 40, 25, 8, 14, 2, 1, 0xb8000, 32, 32, 0, 32 },
|
|
|
|
|
{ M_ENH_C40x25, V_INFO_COLOR, 40, 25, 8, 14, 4, 1, 0xb8000, 32, 32, 0, 32 },
|
|
|
|
|
{ M_ENH_B80x25, V_INFO_COLOR, 80, 25, 8, 14, 2, 1, 0xb8000, 32, 32, 0, 32 },
|
|
|
|
|
{ M_ENH_C80x25, V_INFO_COLOR, 80, 25, 8, 14, 4, 1, 0xb8000, 32, 32, 0, 32 },
|
|
|
|
|
/* VGA */
|
|
|
|
|
{ M_VGA_C40x25, V_INFO_COLOR, 40, 25, 8, 16, 4, 1, 0xb8000, 32, 32, 0, 32 },
|
|
|
|
|
{ M_VGA_M80x25, 0, 80, 25, 8, 16, 2, 1, 0xb0000, 32, 32, 0, 32 },
|
|
|
|
|
{ M_VGA_C80x25, V_INFO_COLOR, 80, 25, 8, 16, 4, 1, 0xb8000, 32, 32, 0, 32 },
|
|
|
|
|
/* MDA */
|
|
|
|
|
{ M_EGAMONO80x25, 0, 80, 25, 8, 14, 2, 1, 0xb0000, 32, 32, 0, 32 },
|
|
|
|
|
/* EGA */
|
|
|
|
|
{ M_ENH_B80x43, V_INFO_COLOR, 80, 43, 8, 8, 2, 1, 0xb8000, 32, 32, 0, 32 },
|
|
|
|
|
{ M_ENH_C80x43, V_INFO_COLOR, 80, 43, 8, 8, 4, 1, 0xb8000, 32, 32, 0, 32 },
|
|
|
|
|
/* VGA */
|
|
|
|
|
{ M_VGA_M80x30, 0, 80, 30, 8, 16, 2, 1, 0xb0000, 32, 32, 0, 32 },
|
|
|
|
|
{ M_VGA_C80x30, V_INFO_COLOR, 80, 30, 8, 16, 4, 1, 0xb8000, 32, 32, 0, 32 },
|
|
|
|
|
{ M_VGA_M80x50, 0, 80, 50, 8, 8, 2, 1, 0xb0000, 32, 32, 0, 32 },
|
|
|
|
|
{ M_VGA_C80x50, V_INFO_COLOR, 80, 50, 8, 8, 4, 1, 0xb8000, 32, 32, 0, 32 },
|
|
|
|
|
{ M_VGA_M80x60, 0, 80, 60, 8, 8, 2, 1, 0xb0000, 32, 32, 0, 32 },
|
|
|
|
|
{ M_VGA_C80x60, V_INFO_COLOR, 80, 60, 8, 8, 4, 1, 0xb8000, 32, 32, 0, 32 },
|
|
|
|
|
/* CGA */
|
|
|
|
|
{ M_BG320, V_INFO_COLOR | V_INFO_GRAPHICS,
|
|
|
|
|
320, 200, 8, 8, 2, 1, 0xb8000, 32, 32, 0, 32 },
|
|
|
|
|
{ M_CG320, V_INFO_COLOR | V_INFO_GRAPHICS,
|
|
|
|
|
320, 200, 8, 8, 2, 1, 0xb8000, 32, 32, 0, 32 },
|
|
|
|
|
{ M_BG640, V_INFO_COLOR | V_INFO_GRAPHICS,
|
|
|
|
|
640, 200, 8, 8, 1, 1, 0xb8000, 32, 32, 0, 32 },
|
|
|
|
|
/* EGA */
|
|
|
|
|
{ M_CG320_D, V_INFO_COLOR | V_INFO_GRAPHICS,
|
|
|
|
|
320, 200, 8, 8, 4, 4, 0xa0000, 64, 64, 0, 64 },
|
|
|
|
|
{ M_CG640_E, V_INFO_COLOR | V_INFO_GRAPHICS,
|
|
|
|
|
640, 200, 8, 8, 4, 4, 0xa0000, 64, 64, 0, 64 },
|
|
|
|
|
{ M_EGAMONOAPA, V_INFO_GRAPHICS,
|
|
|
|
|
640, 350, 8, 14, 4, 4, 0xa0000, 64, 64, 0, 64 },
|
|
|
|
|
{ M_ENHMONOAPA2,V_INFO_GRAPHICS,
|
|
|
|
|
640, 350, 8, 14, 4, 4, 0xa0000, 64, 64, 0, 64 },
|
|
|
|
|
{ M_CG640x350, V_INFO_COLOR | V_INFO_GRAPHICS,
|
|
|
|
|
640, 350, 8, 14, 2, 2, 0xa0000, 64, 64, 0, 64 },
|
|
|
|
|
{ M_ENH_CG640, V_INFO_COLOR | V_INFO_GRAPHICS,
|
|
|
|
|
640, 350, 8, 14, 4, 4, 0xa0000, 64, 64, 0, 64 },
|
|
|
|
|
/* VGA */
|
|
|
|
|
{ M_BG640x480, V_INFO_COLOR | V_INFO_GRAPHICS,
|
|
|
|
|
640, 480, 8, 16, 4, 4, 0xa0000, 64, 64, 0, 64 },
|
|
|
|
|
{ M_CG640x480, V_INFO_COLOR | V_INFO_GRAPHICS,
|
|
|
|
|
640, 480, 8, 16, 4, 4, 0xa0000, 64, 64, 0, 64 },
|
|
|
|
|
{ M_VGA_CG320, V_INFO_COLOR | V_INFO_GRAPHICS,
|
|
|
|
|
320, 200, 8, 8, 8, 1, 0xa0000, 64, 64, 0, 64 },
|
|
|
|
|
{ M_VGA_MODEX, V_INFO_COLOR | V_INFO_GRAPHICS,
|
|
|
|
|
320, 240, 8, 8, 8, 1, 0xa0000, 64, 64, 0, 64 },
|
|
|
|
|
|
|
|
|
|
{ EOT },
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static int init_done = FALSE;
|
|
|
|
|
static u_char *video_mode_ptr = NULL; /* EGA/VGA */
|
|
|
|
|
static u_char *video_mode_ptr2 = NULL; /* CGA/MDA */
|
|
|
|
|
static u_char *mode_map[V_MODE_MAP_SIZE];
|
|
|
|
|
static adp_state_t adpstate;
|
|
|
|
|
static adp_state_t adpstate2;
|
|
|
|
|
static int rows_offset = 1;
|
|
|
|
|
|
|
|
|
|
/* local macros and functions */
|
|
|
|
|
#define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff))
|
|
|
|
|
|
|
|
|
|
static void map_mode_table(u_char *map[], u_char *table, int max);
|
|
|
|
|
static void clear_mode_map(int ad, u_char *map[], int max, int color);
|
|
|
|
|
static int map_mode_num(int mode);
|
1998-09-23 09:59:00 +00:00
|
|
|
|
static int map_gen_mode_num(int type, int color, int mode);
|
1998-09-15 18:16:39 +00:00
|
|
|
|
static int map_bios_mode_num(int type, int color, int bios_mode);
|
|
|
|
|
static u_char *get_mode_param(int mode);
|
|
|
|
|
static void fill_adapter_param(int code, video_adapter_t *adp);
|
|
|
|
|
static int verify_adapter(video_adapter_t *adp);
|
|
|
|
|
#define COMP_IDENTICAL 0
|
|
|
|
|
#define COMP_SIMILAR 1
|
|
|
|
|
#define COMP_DIFFERENT 2
|
|
|
|
|
static int comp_adpregs(u_char *buf1, u_char *buf2);
|
|
|
|
|
|
|
|
|
|
#define PARAM_BUFSIZE 6
|
|
|
|
|
static void set_font_mode(video_adapter_t *adp, u_char *buf);
|
|
|
|
|
static void set_normal_mode(video_adapter_t *adp, u_char *buf);
|
|
|
|
|
|
|
|
|
|
static char *adapter_name(int type);
|
|
|
|
|
static void dump_adp_info(int ad, video_adapter_t *adp, int level);
|
|
|
|
|
static void dump_mode_info(int ad, video_info_t *info, int level);
|
|
|
|
|
static void dump_buffer(u_char *buf, size_t len);
|
|
|
|
|
|
|
|
|
|
extern void generic_bcopy(const void *, void *, size_t);
|
|
|
|
|
|
|
|
|
|
#define ISMAPPED(pa, width) \
|
|
|
|
|
(((pa) <= (u_long)0x1000 - (width)) \
|
|
|
|
|
|| ((pa) >= ISA_HOLE_START && (pa) <= 0x100000 - (width)))
|
|
|
|
|
|
|
|
|
|
#define prologue(ad, flag, err) \
|
|
|
|
|
if (!init_done \
|
|
|
|
|
|| ((ad) < 0) || ((ad) >= adapters) \
|
|
|
|
|
|| !(adapter[(ad)].va_flags & (flag))) \
|
|
|
|
|
return (err)
|
|
|
|
|
|
|
|
|
|
/* construct the mode parameter map */
|
|
|
|
|
static void
|
|
|
|
|
map_mode_table(u_char *map[], u_char *table, int max)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
for(i = 0; i < max; ++i)
|
|
|
|
|
map[i] = table + i*V_MODE_PARAM_SIZE;
|
|
|
|
|
for(; i < V_MODE_MAP_SIZE; ++i)
|
|
|
|
|
map[i] = NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
clear_mode_map(int ad, u_char *map[], int max, int color)
|
|
|
|
|
{
|
|
|
|
|
video_info_t info;
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* NOTE: we don't touch `bios_vmode[]' because it is shared
|
|
|
|
|
* by all adapters.
|
|
|
|
|
*/
|
|
|
|
|
for(i = 0; i < max; ++i) {
|
|
|
|
|
if (vid_get_info(ad, i, &info))
|
|
|
|
|
continue;
|
|
|
|
|
if ((info.vi_flags & V_INFO_COLOR) != color)
|
|
|
|
|
map[i] = NULL;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1998-09-23 09:59:00 +00:00
|
|
|
|
/* map the non-standard video mode to a known mode number */
|
1998-09-15 18:16:39 +00:00
|
|
|
|
static int
|
|
|
|
|
map_mode_num(int mode)
|
|
|
|
|
{
|
|
|
|
|
static struct {
|
|
|
|
|
int from;
|
|
|
|
|
int to;
|
|
|
|
|
} mode_map[] = {
|
|
|
|
|
{ M_ENH_B80x43, M_ENH_B80x25 },
|
|
|
|
|
{ M_ENH_C80x43, M_ENH_C80x25 },
|
|
|
|
|
{ M_VGA_M80x30, M_VGA_M80x25 },
|
|
|
|
|
{ M_VGA_C80x30, M_VGA_C80x25 },
|
|
|
|
|
{ M_VGA_M80x50, M_VGA_M80x25 },
|
|
|
|
|
{ M_VGA_C80x50, M_VGA_C80x25 },
|
|
|
|
|
{ M_VGA_M80x60, M_VGA_M80x25 },
|
|
|
|
|
{ M_VGA_C80x60, M_VGA_C80x25 },
|
|
|
|
|
{ M_VGA_MODEX, M_VGA_CG320 },
|
|
|
|
|
};
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) {
|
|
|
|
|
if (mode_map[i].from == mode)
|
|
|
|
|
return mode_map[i].to;
|
|
|
|
|
}
|
|
|
|
|
return mode;
|
|
|
|
|
}
|
|
|
|
|
|
1998-09-23 09:59:00 +00:00
|
|
|
|
/* map a generic video mode to a known mode number */
|
|
|
|
|
static int
|
|
|
|
|
map_gen_mode_num(int type, int color, int mode)
|
|
|
|
|
{
|
|
|
|
|
static struct {
|
|
|
|
|
int from;
|
|
|
|
|
int to_color;
|
|
|
|
|
int to_mono;
|
|
|
|
|
} mode_map[] = {
|
|
|
|
|
{ M_TEXT_80x30, M_VGA_C80x30, M_VGA_M80x30, },
|
|
|
|
|
{ M_TEXT_80x43, M_ENH_C80x43, M_ENH_B80x43, },
|
|
|
|
|
{ M_TEXT_80x50, M_VGA_C80x50, M_VGA_M80x50, },
|
|
|
|
|
{ M_TEXT_80x60, M_VGA_C80x60, M_VGA_M80x60, },
|
|
|
|
|
};
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
if (mode == M_TEXT_80x25) {
|
|
|
|
|
switch (type) {
|
|
|
|
|
|
|
|
|
|
case KD_VGA:
|
|
|
|
|
if (color)
|
|
|
|
|
return M_VGA_C80x25;
|
|
|
|
|
else
|
|
|
|
|
return M_VGA_M80x25;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case KD_EGA:
|
|
|
|
|
if (color)
|
|
|
|
|
return M_ENH_C80x25;
|
|
|
|
|
else
|
|
|
|
|
return M_EGAMONO80x25;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case KD_CGA:
|
|
|
|
|
return M_C80x25;
|
|
|
|
|
|
|
|
|
|
case KD_MONO:
|
|
|
|
|
case KD_HERCULES:
|
|
|
|
|
return M_EGAMONO80x25; /* XXX: this name is confusing */
|
|
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
return -1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) {
|
|
|
|
|
if (mode_map[i].from == mode)
|
|
|
|
|
return ((color) ? mode_map[i].to_color : mode_map[i].to_mono);
|
|
|
|
|
}
|
|
|
|
|
return mode;
|
|
|
|
|
}
|
|
|
|
|
|
1998-09-15 18:16:39 +00:00
|
|
|
|
/* turn the BIOS video number into our video mode number */
|
|
|
|
|
static int
|
|
|
|
|
map_bios_mode_num(int type, int color, int bios_mode)
|
|
|
|
|
{
|
|
|
|
|
static int cga_modes[7] = {
|
|
|
|
|
M_B40x25, M_C40x25, /* 0, 1 */
|
|
|
|
|
M_B80x25, M_C80x25, /* 2, 3 */
|
|
|
|
|
M_BG320, M_CG320,
|
|
|
|
|
M_BG640,
|
|
|
|
|
};
|
|
|
|
|
static int ega_modes[17] = {
|
|
|
|
|
M_ENH_B40x25, M_ENH_C40x25, /* 0, 1 */
|
|
|
|
|
M_ENH_B80x25, M_ENH_C80x25, /* 2, 3 */
|
|
|
|
|
M_BG320, M_CG320,
|
|
|
|
|
M_BG640,
|
|
|
|
|
M_EGAMONO80x25, /* 7 */
|
|
|
|
|
8, 9, 10, 11, 12,
|
|
|
|
|
M_CG320_D,
|
|
|
|
|
M_CG640_E,
|
|
|
|
|
M_ENHMONOAPA2, /* XXX: video momery > 64K */
|
|
|
|
|
M_ENH_CG640, /* XXX: video momery > 64K */
|
|
|
|
|
};
|
|
|
|
|
static int vga_modes[20] = {
|
|
|
|
|
M_VGA_C40x25, M_VGA_C40x25, /* 0, 1 */
|
|
|
|
|
M_VGA_C80x25, M_VGA_C80x25, /* 2, 3 */
|
|
|
|
|
M_BG320, M_CG320,
|
|
|
|
|
M_BG640,
|
|
|
|
|
M_VGA_M80x25, /* 7 */
|
|
|
|
|
8, 9, 10, 11, 12,
|
|
|
|
|
M_CG320_D,
|
|
|
|
|
M_CG640_E,
|
|
|
|
|
M_ENHMONOAPA2,
|
|
|
|
|
M_ENH_CG640,
|
|
|
|
|
M_BG640x480, M_CG640x480,
|
|
|
|
|
M_VGA_CG320,
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
switch (type) {
|
|
|
|
|
|
|
|
|
|
case KD_VGA:
|
|
|
|
|
if (bios_mode < sizeof(vga_modes)/sizeof(vga_modes[0]))
|
|
|
|
|
return vga_modes[bios_mode];
|
|
|
|
|
else if (color)
|
|
|
|
|
return M_VGA_C80x25;
|
|
|
|
|
else
|
|
|
|
|
return M_VGA_M80x25;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case KD_EGA:
|
|
|
|
|
if (bios_mode < sizeof(ega_modes)/sizeof(ega_modes[0]))
|
|
|
|
|
return ega_modes[bios_mode];
|
|
|
|
|
else if (color)
|
|
|
|
|
return M_ENH_C80x25;
|
|
|
|
|
else
|
|
|
|
|
return M_EGAMONO80x25;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case KD_CGA:
|
|
|
|
|
if (bios_mode < sizeof(cga_modes)/sizeof(cga_modes[0]))
|
|
|
|
|
return cga_modes[bios_mode];
|
|
|
|
|
else
|
|
|
|
|
return M_C80x25;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case KD_MONO:
|
|
|
|
|
case KD_HERCULES:
|
|
|
|
|
return M_EGAMONO80x25; /* XXX: this name is confusing */
|
|
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
return -1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* look up a parameter table entry */
|
|
|
|
|
static u_char
|
|
|
|
|
*get_mode_param(int mode)
|
|
|
|
|
{
|
|
|
|
|
if (mode >= V_MODE_MAP_SIZE)
|
|
|
|
|
mode = map_mode_num(mode);
|
1998-09-23 09:59:00 +00:00
|
|
|
|
if ((mode >= 0) && (mode < V_MODE_MAP_SIZE))
|
1998-09-15 18:16:39 +00:00
|
|
|
|
return mode_map[mode];
|
|
|
|
|
else
|
|
|
|
|
return NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
fill_adapter_param(int code, video_adapter_t *adp)
|
|
|
|
|
{
|
|
|
|
|
static struct {
|
|
|
|
|
int primary;
|
|
|
|
|
int secondary;
|
|
|
|
|
} dcc[] = {
|
|
|
|
|
{ DCC_MONO, DCC_EGA40 /* CGA monitor */ },
|
|
|
|
|
{ DCC_MONO, DCC_EGA80 /* CGA monitor */ },
|
|
|
|
|
{ DCC_MONO, DCC_EGA80 /* CGA emulation */ },
|
|
|
|
|
{ DCC_MONO, DCC_EGA80 },
|
|
|
|
|
{ DCC_CGA40, DCC_EGAMONO },
|
|
|
|
|
{ DCC_CGA80, DCC_EGAMONO },
|
|
|
|
|
{ DCC_EGA40 /* CGA monitor */, DCC_MONO},
|
|
|
|
|
{ DCC_EGA80 /* CGA monitor */, DCC_MONO},
|
|
|
|
|
{ DCC_EGA80 /* CGA emulation */,DCC_MONO },
|
|
|
|
|
{ DCC_EGA80, DCC_MONO },
|
|
|
|
|
{ DCC_EGAMONO, DCC_CGA40 },
|
|
|
|
|
{ DCC_EGAMONO, DCC_CGA40 },
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
if ((code < 0) || (code >= sizeof(dcc)/sizeof(dcc[0]))) {
|
|
|
|
|
adp[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO];
|
|
|
|
|
adp[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80];
|
|
|
|
|
} else {
|
|
|
|
|
adp[V_ADP_PRIMARY] = adapter_init_value[dcc[code].primary];
|
|
|
|
|
adp[V_ADP_SECONDARY] = adapter_init_value[dcc[code].secondary];
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
verify_adapter(video_adapter_t *adp)
|
|
|
|
|
{
|
|
|
|
|
u_short volatile *buf;
|
|
|
|
|
u_short v;
|
|
|
|
|
u_int32_t p;
|
|
|
|
|
|
|
|
|
|
buf = (u_short *)BIOS_PADDRTOVADDR(adp->va_window);
|
|
|
|
|
v = *buf;
|
|
|
|
|
*buf = (u_short) 0xA55A;
|
|
|
|
|
if (*buf != 0xA55A)
|
|
|
|
|
return 1;
|
|
|
|
|
*buf = v;
|
|
|
|
|
|
|
|
|
|
switch (adp->va_type) {
|
|
|
|
|
|
|
|
|
|
case KD_EGA:
|
|
|
|
|
outb(adp->va_crtc_addr, 7);
|
|
|
|
|
if (inb(adp->va_crtc_addr) == 7) {
|
|
|
|
|
adp->va_type = KD_VGA;
|
|
|
|
|
adp->va_flags |= V_ADP_STATESAVE | V_ADP_PALETTE;
|
|
|
|
|
}
|
|
|
|
|
adp->va_flags |= V_ADP_STATELOAD | V_ADP_FONT | V_ADP_BORDER;
|
|
|
|
|
/* the color adapter may be in the 40x25 mode... XXX */
|
|
|
|
|
|
|
|
|
|
/* get the BIOS video mode pointer */
|
|
|
|
|
p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8);
|
|
|
|
|
p = BIOS_SADDRTOLADDR(p);
|
|
|
|
|
if (ISMAPPED(p, sizeof(u_int32_t))) {
|
|
|
|
|
p = *(u_int32_t *)BIOS_PADDRTOVADDR(p);
|
|
|
|
|
p = BIOS_SADDRTOLADDR(p);
|
|
|
|
|
if (ISMAPPED(p, V_MODE_PARAM_SIZE))
|
|
|
|
|
video_mode_ptr = (u_char *)BIOS_PADDRTOVADDR(p);
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case KD_CGA:
|
|
|
|
|
adp->va_flags |= V_ADP_COLOR | V_ADP_BORDER;
|
|
|
|
|
/* may be in the 40x25 mode... XXX */
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case KD_MONO:
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* compare two parameter table entries */
|
|
|
|
|
static int
|
|
|
|
|
comp_adpregs(u_char *buf1, u_char *buf2)
|
|
|
|
|
{
|
|
|
|
|
static struct {
|
|
|
|
|
u_char mask;
|
|
|
|
|
} params[V_MODE_PARAM_SIZE] = {
|
|
|
|
|
0xff, 0x00, 0xff, /* COLS, ROWS, POINTS */
|
|
|
|
|
0x00, 0x00, /* page length */
|
|
|
|
|
0xfe, 0xff, 0xff, 0xff, /* sequencer registers */
|
|
|
|
|
0xf3, /* misc register */
|
|
|
|
|
0xff, 0xff, 0xff, 0x7f, 0xff, /* CRTC */
|
|
|
|
|
0xff, 0xff, 0xff, 0x7f, 0xff,
|
|
|
|
|
0x00, 0x00, 0x00, 0x00, 0x00,
|
|
|
|
|
0x00, 0xff, 0x7f, 0xff, 0xff,
|
|
|
|
|
0x7f, 0xff, 0xff, 0xef, 0xff,
|
|
|
|
|
0xff, 0xff, 0xff, 0xff, 0xff, /* attribute controller registers */
|
|
|
|
|
0xff, 0xff, 0xff, 0xff, 0xff,
|
|
|
|
|
0xff, 0xff, 0xff, 0xff, 0xff,
|
|
|
|
|
0xff, 0xff, 0xff, 0xff, 0xf0,
|
|
|
|
|
0xff, 0xff, 0xff, 0xff, 0xff, /* GDC register */
|
|
|
|
|
0xff, 0xff, 0xff, 0xff,
|
|
|
|
|
};
|
|
|
|
|
int identical = TRUE;
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
if ((buf1 == NULL) || (buf2 == NULL))
|
|
|
|
|
return COMP_DIFFERENT;
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < sizeof(params)/sizeof(params[0]); ++i) {
|
|
|
|
|
if (params[i].mask == 0) /* don't care */
|
|
|
|
|
continue;
|
|
|
|
|
if ((buf1[i] & params[i].mask) != (buf2[i] & params[i].mask))
|
|
|
|
|
return COMP_DIFFERENT;
|
|
|
|
|
if (buf1[i] != buf2[i])
|
|
|
|
|
identical = FALSE;
|
|
|
|
|
}
|
|
|
|
|
return (identical) ? COMP_IDENTICAL : COMP_SIMILAR;
|
|
|
|
|
}
|
|
|
|
|
|
1998-09-23 09:59:00 +00:00
|
|
|
|
/* entry points */
|
1998-09-15 18:16:39 +00:00
|
|
|
|
|
1998-09-23 09:59:00 +00:00
|
|
|
|
/*
|
|
|
|
|
* init()
|
|
|
|
|
* Return the # of video adapters found; usually 1 or 0.
|
|
|
|
|
*
|
|
|
|
|
* all adapters
|
|
|
|
|
*/
|
1998-09-15 18:16:39 +00:00
|
|
|
|
static int
|
|
|
|
|
vid_init(void)
|
|
|
|
|
{
|
|
|
|
|
video_adapter_t *adp;
|
|
|
|
|
video_info_t info;
|
|
|
|
|
u_char *mp;
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
/* do this test only once */
|
|
|
|
|
if (init_done)
|
|
|
|
|
return adapters;
|
|
|
|
|
init_done = TRUE;
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Locate display adapters.
|
|
|
|
|
* The AT architecture supports upto two adapters. `syscons' allows
|
|
|
|
|
* the following combinations of adapters:
|
|
|
|
|
* 1) MDA + CGA
|
|
|
|
|
* 2) MDA + EGA/VGA color
|
|
|
|
|
* 3) CGA + EGA/VGA mono
|
|
|
|
|
* Note that `syscons' doesn't bother with MCGA as it is only
|
|
|
|
|
* avaiable for low end PS/2 models which has 80286 or earlier CPUs,
|
|
|
|
|
* thus, they are not running FreeBSD!
|
|
|
|
|
* When there are two adapaters in the system, one becomes `primary'
|
|
|
|
|
* and the other `secondary'. The EGA adapter has a set of DIP
|
|
|
|
|
* switches on board for this information and the EGA BIOS copies
|
|
|
|
|
* it in the BIOS data area BIOSDATA_VIDEOSWITCH (40:88).
|
|
|
|
|
* The VGA BIOS has more sophisticated mechanism and has this
|
|
|
|
|
* information in BIOSDATA_DCCINDEX (40:8a), but it also maintains
|
|
|
|
|
* compatibility with the EGA BIOS by updating BIOSDATA_VIDEOSWITCH.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
/* check rtc and BIOS date area */
|
|
|
|
|
/*
|
|
|
|
|
* XXX: don't use BIOSDATA_EQUIPMENT, it is not a dead copy
|
|
|
|
|
* of RTC_EQUIPMENT. The bit 4 and 5 of the ETC_EQUIPMENT are
|
|
|
|
|
* zeros for EGA and VGA. However, the EGA/VGA BIOS will set
|
|
|
|
|
* these bits in BIOSDATA_EQUIPMENT according to the monitor
|
|
|
|
|
* type detected.
|
|
|
|
|
*/
|
|
|
|
|
switch ((rtcin(RTC_EQUIPMENT) >> 4) & 3) { /* bit 4 and 5 */
|
|
|
|
|
case 0:
|
|
|
|
|
/* EGA/VGA */
|
|
|
|
|
fill_adapter_param(*(u_int8_t *)BIOS_PADDRTOVADDR(0x488) & 0x0f,
|
|
|
|
|
adapter);
|
|
|
|
|
break;
|
|
|
|
|
case 1:
|
|
|
|
|
/* CGA 40x25 */
|
|
|
|
|
/* FIXME: switch to the 80x25 mode? XXX */
|
|
|
|
|
adapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA40];
|
|
|
|
|
adapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO];
|
|
|
|
|
break;
|
|
|
|
|
case 2:
|
|
|
|
|
/* CGA 80x25 */
|
|
|
|
|
adapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA80];
|
|
|
|
|
adapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO];
|
|
|
|
|
break;
|
|
|
|
|
case 3:
|
|
|
|
|
/* MDA */
|
|
|
|
|
adapter[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO];
|
|
|
|
|
adapter[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80];
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
adapters = 0;
|
|
|
|
|
if (verify_adapter(&adapter[V_ADP_SECONDARY]) == 0) {
|
|
|
|
|
++adapters;
|
|
|
|
|
adapter[V_ADP_SECONDARY].va_mode =
|
|
|
|
|
adapter[V_ADP_SECONDARY].va_initial_mode =
|
|
|
|
|
map_bios_mode_num(adapter[V_ADP_SECONDARY].va_type,
|
|
|
|
|
adapter[V_ADP_SECONDARY].va_flags & V_ADP_COLOR,
|
|
|
|
|
adapter[V_ADP_SECONDARY].va_initial_bios_mode);
|
|
|
|
|
} else {
|
|
|
|
|
adapter[V_ADP_SECONDARY].va_type = -1;
|
|
|
|
|
}
|
|
|
|
|
if (verify_adapter(&adapter[V_ADP_PRIMARY]) == 0) {
|
|
|
|
|
++adapters;
|
|
|
|
|
adapter[V_ADP_PRIMARY].va_initial_bios_mode =
|
|
|
|
|
*(u_int8_t *)BIOS_PADDRTOVADDR(0x449);
|
|
|
|
|
adapter[V_ADP_PRIMARY].va_mode =
|
|
|
|
|
adapter[V_ADP_PRIMARY].va_initial_mode =
|
|
|
|
|
map_bios_mode_num(adapter[V_ADP_PRIMARY].va_type,
|
|
|
|
|
adapter[V_ADP_PRIMARY].va_flags & V_ADP_COLOR,
|
|
|
|
|
adapter[V_ADP_PRIMARY].va_initial_bios_mode);
|
|
|
|
|
} else {
|
|
|
|
|
adapter[V_ADP_PRIMARY] = adapter[V_ADP_SECONDARY];
|
|
|
|
|
adapter[V_ADP_SECONDARY].va_type = -1;
|
|
|
|
|
}
|
|
|
|
|
if (adapters == 0)
|
|
|
|
|
return adapters;
|
|
|
|
|
adapter[V_ADP_PRIMARY].va_index = V_ADP_PRIMARY;
|
|
|
|
|
adapter[V_ADP_SECONDARY].va_index = V_ADP_SECONDARY;
|
|
|
|
|
|
|
|
|
|
#if 0
|
|
|
|
|
/*
|
|
|
|
|
* We cannot have two video adapter of the same type; there must be
|
|
|
|
|
* only one of color or mono adapter, or one each of them.
|
|
|
|
|
*/
|
|
|
|
|
if (adapters > 1) {
|
|
|
|
|
if (!((adapter[0].va_flags ^ adapter[1].va_flags) & V_ADP_COLOR))
|
|
|
|
|
/* we have two mono or color adapters!! */
|
|
|
|
|
return (adapters = 0);
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Ensure a zero start address. This is mainly to recover after
|
|
|
|
|
* switching from pcvt using userconfig(). The registers are w/o
|
|
|
|
|
* for old hardware so it's too hard to relocate the active screen
|
|
|
|
|
* memory.
|
|
|
|
|
* This must be done before vid_save_state() for VGA.
|
|
|
|
|
*/
|
|
|
|
|
outb(adapter[V_ADP_PRIMARY].va_crtc_addr, 12);
|
|
|
|
|
outb(adapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0);
|
|
|
|
|
outb(adapter[V_ADP_PRIMARY].va_crtc_addr, 13);
|
|
|
|
|
outb(adapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0);
|
|
|
|
|
|
|
|
|
|
/* the video mode parameter table in EGA/VGA BIOS */
|
|
|
|
|
/* NOTE: there can be only one EGA/VGA, wheather color or mono,
|
|
|
|
|
* recognized by the video BIOS.
|
|
|
|
|
*/
|
|
|
|
|
if ((adapter[V_ADP_PRIMARY].va_type == KD_EGA) ||
|
|
|
|
|
(adapter[V_ADP_PRIMARY].va_type == KD_VGA)) {
|
|
|
|
|
adp = &adapter[V_ADP_PRIMARY];
|
|
|
|
|
} else if ((adapter[V_ADP_SECONDARY].va_type == KD_EGA) ||
|
|
|
|
|
(adapter[V_ADP_SECONDARY].va_type == KD_VGA)) {
|
|
|
|
|
adp = &adapter[V_ADP_SECONDARY];
|
|
|
|
|
} else {
|
|
|
|
|
adp = NULL;
|
|
|
|
|
}
|
|
|
|
|
bzero(mode_map, sizeof(mode_map));
|
|
|
|
|
if (adp != NULL) {
|
|
|
|
|
if (adp->va_type == KD_VGA) {
|
|
|
|
|
vid_save_state(adp - adapter, &adpstate, sizeof(adpstate));
|
|
|
|
|
if (video_mode_ptr == NULL) {
|
|
|
|
|
mode_map[map_mode_num(adp->va_initial_mode)] = adpstate.regs;
|
|
|
|
|
rows_offset = 1;
|
|
|
|
|
} else {
|
|
|
|
|
/* discard the table if we are not familiar with it... */
|
|
|
|
|
map_mode_table(mode_map, video_mode_ptr, M_VGA_CG320 + 1);
|
|
|
|
|
mp = get_mode_param(adp->va_initial_mode);
|
|
|
|
|
if (mp != NULL)
|
|
|
|
|
bcopy(mp, adpstate2.regs, sizeof(adpstate2.regs));
|
|
|
|
|
switch (comp_adpregs(adpstate.regs, mp)) {
|
|
|
|
|
case COMP_IDENTICAL:
|
|
|
|
|
/*
|
|
|
|
|
* OK, this parameter table looks reasonably familiar
|
|
|
|
|
* to us...
|
|
|
|
|
*/
|
|
|
|
|
/*
|
|
|
|
|
* This is a kludge for Toshiba DynaBook SS433
|
|
|
|
|
* whose BIOS video mode table entry has the actual #
|
|
|
|
|
* of rows at the offset 1; BIOSes from other
|
|
|
|
|
* manufacturers store the # of rows - 1 there. XXX
|
|
|
|
|
*/
|
|
|
|
|
rows_offset = adpstate.regs[1] + 1 - mp[1];
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case COMP_SIMILAR:
|
|
|
|
|
/*
|
|
|
|
|
* Not exactly the same, but similar enough to be
|
|
|
|
|
* trusted. However, use the saved register values
|
|
|
|
|
* for the initial mode and other modes which are
|
|
|
|
|
* based on the initial mode.
|
|
|
|
|
*/
|
|
|
|
|
mode_map[map_mode_num(adp->va_initial_mode)] =
|
|
|
|
|
adpstate.regs;
|
|
|
|
|
rows_offset = adpstate.regs[1] + 1 - mp[1];
|
|
|
|
|
adpstate.regs[1] -= rows_offset - 1;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case COMP_DIFFERENT:
|
|
|
|
|
default:
|
|
|
|
|
/*
|
|
|
|
|
* Don't use the paramter table in BIOS. It doesn't
|
|
|
|
|
* look familiar to us. Video mode switching is allowed
|
|
|
|
|
* only if the new mode is the same as or based on
|
|
|
|
|
* the initial mode.
|
|
|
|
|
*/
|
|
|
|
|
video_mode_ptr = NULL;
|
|
|
|
|
bzero(mode_map, sizeof(mode_map));
|
|
|
|
|
mode_map[map_mode_num(adp->va_initial_mode)] =
|
|
|
|
|
adpstate.regs;
|
|
|
|
|
rows_offset = 1;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
adp->va_flags |= V_ADP_MODECHANGE;
|
|
|
|
|
} else if (adp->va_type == KD_EGA) {
|
|
|
|
|
if (video_mode_ptr == NULL) {
|
|
|
|
|
adp->va_flags &= ~V_ADP_FONT;
|
|
|
|
|
rows_offset = 1;
|
|
|
|
|
} else {
|
|
|
|
|
map_mode_table(mode_map, video_mode_ptr, M_ENH_C80x25 + 1);
|
|
|
|
|
/* XXX how can one validate the EGA table... */
|
|
|
|
|
mp = get_mode_param(adp->va_initial_mode);
|
|
|
|
|
if (mp != NULL) {
|
|
|
|
|
adp->va_flags |= V_ADP_MODECHANGE;
|
|
|
|
|
rows_offset = 1;
|
|
|
|
|
} else {
|
|
|
|
|
/*
|
|
|
|
|
* This is serious. We will not be able to switch video
|
|
|
|
|
* modes at all...
|
|
|
|
|
*/
|
|
|
|
|
adp->va_flags &= ~V_ADP_FONT;
|
|
|
|
|
video_mode_ptr = NULL;
|
|
|
|
|
bzero(mode_map, sizeof(mode_map));
|
|
|
|
|
rows_offset = 1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* remove conflicting modes if we have more than one adapter */
|
|
|
|
|
if (adapters > 1) {
|
|
|
|
|
for (i = 0; i < adapters; ++i) {
|
|
|
|
|
if (!(adapter[i].va_flags & V_ADP_MODECHANGE))
|
|
|
|
|
continue;
|
|
|
|
|
clear_mode_map(i, mode_map, M_VGA_CG320 + 1,
|
|
|
|
|
(adapter[i].va_flags & V_ADP_COLOR) ?
|
|
|
|
|
V_INFO_COLOR : 0);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* buffer address */
|
|
|
|
|
vid_get_info(V_ADP_PRIMARY,
|
|
|
|
|
adapter[V_ADP_PRIMARY].va_initial_mode, &info);
|
|
|
|
|
adapter[V_ADP_PRIMARY].va_window = BIOS_PADDRTOVADDR(info.vi_window);
|
|
|
|
|
adapter[V_ADP_PRIMARY].va_window_size = info.vi_window_size;
|
|
|
|
|
adapter[V_ADP_PRIMARY].va_window_gran = info.vi_window_gran;
|
|
|
|
|
adapter[V_ADP_PRIMARY].va_buffer = BIOS_PADDRTOVADDR(info.vi_buffer);
|
|
|
|
|
adapter[V_ADP_PRIMARY].va_buffer_size = info.vi_buffer_size;
|
|
|
|
|
if (adapters > 1) {
|
|
|
|
|
vid_get_info(V_ADP_SECONDARY,
|
|
|
|
|
adapter[V_ADP_SECONDARY].va_initial_mode, &info);
|
|
|
|
|
adapter[V_ADP_SECONDARY].va_window = BIOS_PADDRTOVADDR(info.vi_window);
|
|
|
|
|
adapter[V_ADP_SECONDARY].va_window_size = info.vi_window_size;
|
|
|
|
|
adapter[V_ADP_SECONDARY].va_window_gran = info.vi_window_gran;
|
|
|
|
|
adapter[V_ADP_SECONDARY].va_buffer = BIOS_PADDRTOVADDR(info.vi_buffer);
|
|
|
|
|
adapter[V_ADP_SECONDARY].va_buffer_size = info.vi_buffer_size;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* XXX: we should verify the following values for the primary adapter...
|
|
|
|
|
* crtc I/O port address: *(u_int16_t *)BIOS_PADDRTOVADDR(0x463);
|
|
|
|
|
* color/mono display: (*(u_int8_t *)BIOS_PADDRTOVADDR(0x487) & 0x02)
|
|
|
|
|
* ? 0 : V_ADP_COLOR;
|
|
|
|
|
* columns: *(u_int8_t *)BIOS_PADDRTOVADDR(0x44a);
|
|
|
|
|
* rows: *(u_int8_t *)BIOS_PADDRTOVADDR(0x484);
|
|
|
|
|
* font size: *(u_int8_t *)BIOS_PADDRTOVADDR(0x485);
|
|
|
|
|
* buffer size: *(u_int16_t *)BIOS_PADDRTOVADDR(0x44c);
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
return adapters;
|
|
|
|
|
}
|
|
|
|
|
|
1998-09-23 09:59:00 +00:00
|
|
|
|
/*
|
|
|
|
|
* adapter();
|
|
|
|
|
* Return a pointer to the video_adapter structure of the requested
|
|
|
|
|
* adapter.
|
|
|
|
|
*
|
|
|
|
|
* all adapters
|
|
|
|
|
*/
|
1998-09-15 18:16:39 +00:00
|
|
|
|
static video_adapter_t
|
|
|
|
|
*vid_adapter(int ad)
|
|
|
|
|
{
|
|
|
|
|
if (!init_done)
|
|
|
|
|
return NULL;
|
|
|
|
|
if ((ad < 0) || (ad >= adapters))
|
|
|
|
|
return NULL;
|
|
|
|
|
return &adapter[ad];
|
|
|
|
|
}
|
|
|
|
|
|
1998-09-23 09:59:00 +00:00
|
|
|
|
/*
|
|
|
|
|
* get_info():
|
|
|
|
|
* Return the video_info structure of the requested video mode.
|
|
|
|
|
*
|
|
|
|
|
* all adapters
|
|
|
|
|
*/
|
1998-09-15 18:16:39 +00:00
|
|
|
|
static int
|
|
|
|
|
vid_get_info(int ad, int mode, video_info_t *info)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
if (!init_done)
|
|
|
|
|
return 1;
|
|
|
|
|
if ((ad < 0) || (ad >= adapters))
|
|
|
|
|
return 1;
|
|
|
|
|
|
1998-09-23 09:59:00 +00:00
|
|
|
|
mode = map_gen_mode_num(adapter[ad].va_type,
|
|
|
|
|
adapter[ad].va_flags & V_ADP_COLOR, mode);
|
1998-09-15 18:16:39 +00:00
|
|
|
|
if (adapter[ad].va_flags & V_ADP_MODECHANGE) {
|
|
|
|
|
/*
|
|
|
|
|
* If the parameter table entry for this mode is not found,
|
|
|
|
|
* the mode is not supported...
|
|
|
|
|
*/
|
|
|
|
|
if (get_mode_param(mode) == NULL)
|
|
|
|
|
return 1;
|
|
|
|
|
} else {
|
|
|
|
|
/*
|
|
|
|
|
* Even if we don't support video mode switching on this adapter,
|
|
|
|
|
* the information on the initial (thus current) video mode
|
|
|
|
|
* should be made available.
|
|
|
|
|
*/
|
|
|
|
|
if (mode != adapter[ad].va_initial_mode)
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) {
|
|
|
|
|
if (bios_vmode[i].vi_mode == NA)
|
|
|
|
|
continue;
|
|
|
|
|
if (mode == bios_vmode[i].vi_mode) {
|
|
|
|
|
*info = bios_vmode[i];
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
1998-09-23 09:59:00 +00:00
|
|
|
|
/*
|
|
|
|
|
* query_mode():
|
|
|
|
|
* Find a video mode matching the requested parameters.
|
|
|
|
|
* Fields filled with 0 are considered "don't care" fields and
|
|
|
|
|
* match any modes.
|
|
|
|
|
*
|
|
|
|
|
* all adapters
|
|
|
|
|
*/
|
1998-09-15 18:16:39 +00:00
|
|
|
|
static int
|
|
|
|
|
vid_query_mode(int ad, video_info_t *info)
|
|
|
|
|
{
|
|
|
|
|
video_info_t buf;
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
if (!init_done)
|
|
|
|
|
return -1;
|
|
|
|
|
if ((ad < 0) || (ad >= adapters))
|
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
|
|
for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) {
|
|
|
|
|
if (bios_vmode[i].vi_mode == NA)
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
if ((info->vi_width != 0)
|
|
|
|
|
&& (info->vi_width != bios_vmode[i].vi_width))
|
|
|
|
|
continue;
|
|
|
|
|
if ((info->vi_height != 0)
|
|
|
|
|
&& (info->vi_height != bios_vmode[i].vi_height))
|
|
|
|
|
continue;
|
|
|
|
|
if ((info->vi_cwidth != 0)
|
|
|
|
|
&& (info->vi_cwidth != bios_vmode[i].vi_cwidth))
|
|
|
|
|
continue;
|
|
|
|
|
if ((info->vi_cheight != 0)
|
|
|
|
|
&& (info->vi_cheight != bios_vmode[i].vi_cheight))
|
|
|
|
|
continue;
|
|
|
|
|
if ((info->vi_depth != 0)
|
|
|
|
|
&& (info->vi_depth != bios_vmode[i].vi_depth))
|
|
|
|
|
continue;
|
|
|
|
|
if ((info->vi_planes != 0)
|
|
|
|
|
&& (info->vi_planes != bios_vmode[i].vi_planes))
|
|
|
|
|
continue;
|
|
|
|
|
/* XXX: should check pixel format, memory model */
|
|
|
|
|
if ((info->vi_flags != 0)
|
|
|
|
|
&& (info->vi_flags != bios_vmode[i].vi_flags))
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
/* verify if this mode is supported on this adapter */
|
|
|
|
|
if (vid_get_info(ad, bios_vmode[i].vi_mode, &buf))
|
|
|
|
|
continue;
|
|
|
|
|
return bios_vmode[i].vi_mode;
|
|
|
|
|
}
|
|
|
|
|
return -1;
|
|
|
|
|
}
|
|
|
|
|
|
1998-09-23 09:59:00 +00:00
|
|
|
|
/*
|
|
|
|
|
* set_mode():
|
|
|
|
|
* Change the video mode.
|
|
|
|
|
*
|
|
|
|
|
* EGA/VGA
|
|
|
|
|
*/
|
1998-09-15 18:16:39 +00:00
|
|
|
|
static int
|
|
|
|
|
vid_set_mode(int ad, int mode)
|
|
|
|
|
{
|
|
|
|
|
video_info_t info;
|
|
|
|
|
adp_state_t params;
|
|
|
|
|
|
|
|
|
|
prologue(ad, V_ADP_MODECHANGE, 1);
|
|
|
|
|
|
1998-09-23 09:59:00 +00:00
|
|
|
|
mode = map_gen_mode_num(adapter[ad].va_type,
|
|
|
|
|
adapter[ad].va_flags & V_ADP_COLOR, mode);
|
1998-09-15 18:16:39 +00:00
|
|
|
|
if (vid_get_info(ad, mode, &info))
|
|
|
|
|
return 1;
|
|
|
|
|
params.sig = V_STATE_SIG;
|
|
|
|
|
bcopy(get_mode_param(mode), params.regs, sizeof(params.regs));
|
|
|
|
|
|
|
|
|
|
switch (mode) {
|
|
|
|
|
case M_VGA_C80x60: case M_VGA_M80x60:
|
|
|
|
|
params.regs[2] = 0x08;
|
|
|
|
|
params.regs[19] = 0x47;
|
|
|
|
|
goto special_480l;
|
|
|
|
|
|
|
|
|
|
case M_VGA_C80x30: case M_VGA_M80x30:
|
|
|
|
|
params.regs[19] = 0x4f;
|
|
|
|
|
special_480l:
|
|
|
|
|
params.regs[9] |= 0xc0;
|
|
|
|
|
params.regs[16] = 0x08;
|
|
|
|
|
params.regs[17] = 0x3e;
|
|
|
|
|
params.regs[26] = 0xea;
|
|
|
|
|
params.regs[28] = 0xdf;
|
|
|
|
|
params.regs[31] = 0xe7;
|
|
|
|
|
params.regs[32] = 0x04;
|
|
|
|
|
goto setup_mode;
|
|
|
|
|
|
|
|
|
|
case M_ENH_C80x43: case M_ENH_B80x43:
|
|
|
|
|
params.regs[28] = 87;
|
|
|
|
|
goto special_80x50;
|
|
|
|
|
|
|
|
|
|
case M_VGA_C80x50: case M_VGA_M80x50:
|
|
|
|
|
special_80x50:
|
|
|
|
|
params.regs[2] = 8;
|
|
|
|
|
params.regs[19] = 7;
|
|
|
|
|
goto setup_mode;
|
|
|
|
|
|
|
|
|
|
case M_VGA_C40x25: case M_VGA_C80x25:
|
|
|
|
|
case M_VGA_M80x25:
|
|
|
|
|
case M_B40x25: case M_C40x25:
|
|
|
|
|
case M_B80x25: case M_C80x25:
|
|
|
|
|
case M_ENH_B40x25: case M_ENH_C40x25:
|
|
|
|
|
case M_ENH_B80x25: case M_ENH_C80x25:
|
|
|
|
|
case M_EGAMONO80x25:
|
|
|
|
|
|
|
|
|
|
setup_mode:
|
|
|
|
|
vid_load_state(ad, ¶ms);
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case M_VGA_MODEX:
|
|
|
|
|
/* "unchain" the VGA mode */
|
|
|
|
|
params.regs[5-1+0x04] &= 0xf7;
|
|
|
|
|
params.regs[5-1+0x04] |= 0x04;
|
|
|
|
|
/* turn off doubleword mode */
|
|
|
|
|
params.regs[10+0x14] &= 0xbf;
|
|
|
|
|
/* turn off word adressing */
|
|
|
|
|
params.regs[10+0x17] |= 0x40;
|
|
|
|
|
/* set logical screen width */
|
|
|
|
|
params.regs[10+0x13] = 80;
|
|
|
|
|
/* set 240 lines */
|
|
|
|
|
params.regs[10+0x11] = 0x2c;
|
|
|
|
|
params.regs[10+0x06] = 0x0d;
|
|
|
|
|
params.regs[10+0x07] = 0x3e;
|
|
|
|
|
params.regs[10+0x10] = 0xea;
|
|
|
|
|
params.regs[10+0x11] = 0xac;
|
|
|
|
|
params.regs[10+0x12] = 0xdf;
|
|
|
|
|
params.regs[10+0x15] = 0xe7;
|
|
|
|
|
params.regs[10+0x16] = 0x06;
|
|
|
|
|
/* set vertical sync polarity to reflect aspect ratio */
|
|
|
|
|
params.regs[9] = 0xe3;
|
|
|
|
|
goto setup_grmode;
|
|
|
|
|
|
|
|
|
|
case M_BG320: case M_CG320: case M_BG640:
|
|
|
|
|
case M_CG320_D: case M_CG640_E:
|
|
|
|
|
case M_CG640x350: case M_ENH_CG640:
|
|
|
|
|
case M_BG640x480: case M_CG640x480: case M_VGA_CG320:
|
|
|
|
|
|
|
|
|
|
setup_grmode:
|
|
|
|
|
vid_load_state(ad, ¶ms);
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
adapter[ad].va_mode = mode;
|
|
|
|
|
adapter[ad].va_flags &= ~V_ADP_COLOR;
|
|
|
|
|
adapter[ad].va_flags |=
|
|
|
|
|
(info.vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0;
|
|
|
|
|
adapter[ad].va_crtc_addr =
|
|
|
|
|
(adapter[ad].va_flags & V_ADP_COLOR) ? COLOR_BASE : MONO_BASE;
|
|
|
|
|
adapter[ad].va_window = BIOS_PADDRTOVADDR(info.vi_window);
|
|
|
|
|
adapter[ad].va_window_size = info.vi_window_size;
|
|
|
|
|
adapter[ad].va_window_gran = info.vi_window_gran;
|
|
|
|
|
if (info.vi_buffer_size == 0) {
|
|
|
|
|
adapter[ad].va_buffer = 0;
|
|
|
|
|
adapter[ad].va_buffer_size = 0;
|
|
|
|
|
} else {
|
|
|
|
|
adapter[ad].va_buffer = BIOS_PADDRTOVADDR(info.vi_buffer);
|
|
|
|
|
adapter[ad].va_buffer_size = info.vi_buffer_size;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
set_font_mode(video_adapter_t *adp, u_char *buf)
|
|
|
|
|
{
|
|
|
|
|
u_char *mp;
|
|
|
|
|
int s;
|
|
|
|
|
|
|
|
|
|
s = splhigh();
|
|
|
|
|
|
|
|
|
|
/* save register values */
|
|
|
|
|
if (adp->va_type == KD_VGA) {
|
|
|
|
|
outb(TSIDX, 0x02); buf[0] = inb(TSREG);
|
|
|
|
|
outb(TSIDX, 0x04); buf[1] = inb(TSREG);
|
|
|
|
|
outb(GDCIDX, 0x04); buf[2] = inb(GDCREG);
|
|
|
|
|
outb(GDCIDX, 0x05); buf[3] = inb(GDCREG);
|
|
|
|
|
outb(GDCIDX, 0x06); buf[4] = inb(GDCREG);
|
|
|
|
|
inb(adp->va_crtc_addr + 6);
|
|
|
|
|
outb(ATC, 0x10); buf[5] = inb(ATC + 1);
|
|
|
|
|
} else /* if (adp->va_type == KD_EGA) */ {
|
|
|
|
|
/*
|
|
|
|
|
* EGA cannot be read; copy parameters from the mode parameter
|
|
|
|
|
* table.
|
|
|
|
|
*/
|
|
|
|
|
mp = get_mode_param(adp->va_mode);
|
|
|
|
|
buf[0] = mp[5 + 0x02 - 1];
|
|
|
|
|
buf[1] = mp[5 + 0x04 - 1];
|
|
|
|
|
buf[2] = mp[55 + 0x04];
|
|
|
|
|
buf[3] = mp[55 + 0x05];
|
|
|
|
|
buf[4] = mp[55 + 0x06];
|
|
|
|
|
buf[5] = mp[35 + 0x10];
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* setup vga for loading fonts */
|
|
|
|
|
inb(adp->va_crtc_addr + 6); /* reset flip-flop */
|
|
|
|
|
outb(ATC, 0x10); outb(ATC, buf[5] & ~0x01);
|
|
|
|
|
inb(adp->va_crtc_addr + 6); /* reset flip-flop */
|
|
|
|
|
outb(ATC, 0x20); /* enable palette */
|
|
|
|
|
|
|
|
|
|
#if SLOW_VGA
|
1998-09-24 13:20:47 +00:00
|
|
|
|
#ifdef SC_ALT_SEQACCESS
|
1998-09-15 18:16:39 +00:00
|
|
|
|
outb(TSIDX, 0x00); outb(TSREG, 0x01);
|
|
|
|
|
#endif
|
|
|
|
|
outb(TSIDX, 0x02); outb(TSREG, 0x04);
|
|
|
|
|
outb(TSIDX, 0x04); outb(TSREG, 0x07);
|
1998-09-24 13:20:47 +00:00
|
|
|
|
#ifdef SC_ALT_SEQACCESS
|
1998-09-15 18:16:39 +00:00
|
|
|
|
outb(TSIDX, 0x00); outb(TSREG, 0x03);
|
|
|
|
|
#endif
|
|
|
|
|
outb(GDCIDX, 0x04); outb(GDCREG, 0x02);
|
|
|
|
|
outb(GDCIDX, 0x05); outb(GDCREG, 0x00);
|
|
|
|
|
outb(GDCIDX, 0x06); outb(GDCREG, 0x04);
|
|
|
|
|
#else
|
1998-09-24 13:20:47 +00:00
|
|
|
|
#ifdef SC_ALT_SEQACCESS
|
1998-09-15 18:16:39 +00:00
|
|
|
|
outw(TSIDX, 0x0100);
|
|
|
|
|
#endif
|
|
|
|
|
outw(TSIDX, 0x0402);
|
|
|
|
|
outw(TSIDX, 0x0704);
|
1998-09-24 13:20:47 +00:00
|
|
|
|
#ifdef SC_ALT_SEQACCESS
|
1998-09-15 18:16:39 +00:00
|
|
|
|
outw(TSIDX, 0x0300);
|
|
|
|
|
#endif
|
|
|
|
|
outw(GDCIDX, 0x0204);
|
|
|
|
|
outw(GDCIDX, 0x0005);
|
|
|
|
|
outw(GDCIDX, 0x0406); /* addr = a0000, 64kb */
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
splx(s);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
set_normal_mode(video_adapter_t *adp, u_char *buf)
|
|
|
|
|
{
|
|
|
|
|
int s;
|
|
|
|
|
|
|
|
|
|
s = splhigh();
|
|
|
|
|
|
|
|
|
|
/* setup vga for normal operation mode again */
|
|
|
|
|
inb(adp->va_crtc_addr + 6); /* reset flip-flop */
|
|
|
|
|
outb(ATC, 0x10); outb(ATC, buf[5]);
|
|
|
|
|
inb(adp->va_crtc_addr + 6); /* reset flip-flop */
|
|
|
|
|
outb(ATC, 0x20); /* enable palette */
|
|
|
|
|
|
|
|
|
|
#if SLOW_VGA
|
1998-09-24 13:20:47 +00:00
|
|
|
|
#ifdef SC_ALT_SEQACCESS
|
1998-09-15 18:16:39 +00:00
|
|
|
|
outb(TSIDX, 0x00); outb(TSREG, 0x01);
|
|
|
|
|
#endif
|
|
|
|
|
outb(TSIDX, 0x02); outb(TSREG, buf[0]);
|
|
|
|
|
outb(TSIDX, 0x04); outb(TSREG, buf[1]);
|
1998-09-24 13:20:47 +00:00
|
|
|
|
#ifdef SC_ALT_SEQACCESS
|
1998-09-15 18:16:39 +00:00
|
|
|
|
outb(TSIDX, 0x00); outb(TSREG, 0x03);
|
|
|
|
|
#endif
|
|
|
|
|
outb(GDCIDX, 0x04); outb(GDCREG, buf[2]);
|
|
|
|
|
outb(GDCIDX, 0x05); outb(GDCREG, buf[3]);
|
|
|
|
|
if (adp->va_crtc_addr == MONO_BASE) {
|
|
|
|
|
outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x08);
|
|
|
|
|
} else {
|
|
|
|
|
outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x0c);
|
|
|
|
|
}
|
|
|
|
|
#else
|
1998-09-24 13:20:47 +00:00
|
|
|
|
#ifdef SC_ALT_SEQACCESS
|
1998-09-15 18:16:39 +00:00
|
|
|
|
outw(TSIDX, 0x0100);
|
|
|
|
|
#endif
|
|
|
|
|
outw(TSIDX, 0x0002 | (buf[0] << 8));
|
|
|
|
|
outw(TSIDX, 0x0004 | (buf[1] << 8));
|
1998-09-24 13:20:47 +00:00
|
|
|
|
#ifdef SC_ALT_SEQACCESS
|
1998-09-15 18:16:39 +00:00
|
|
|
|
outw(TSIDX, 0x0300);
|
|
|
|
|
#endif
|
|
|
|
|
outw(GDCIDX, 0x0004 | (buf[2] << 8));
|
|
|
|
|
outw(GDCIDX, 0x0005 | (buf[3] << 8));
|
|
|
|
|
if (adp->va_crtc_addr == MONO_BASE)
|
|
|
|
|
outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x08)<<8));
|
|
|
|
|
else
|
|
|
|
|
outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x0c)<<8));
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
splx(s);
|
|
|
|
|
}
|
|
|
|
|
|
1998-09-23 09:59:00 +00:00
|
|
|
|
/*
|
|
|
|
|
* save_font():
|
|
|
|
|
* Read the font data in the requested font page from the video adapter.
|
|
|
|
|
*
|
|
|
|
|
* EGA/VGA
|
|
|
|
|
*/
|
1998-09-15 18:16:39 +00:00
|
|
|
|
static int
|
|
|
|
|
vid_save_font(int ad, int page, int fontsize, u_char *data, int ch, int count)
|
|
|
|
|
{
|
|
|
|
|
u_char buf[PARAM_BUFSIZE];
|
|
|
|
|
u_char val = 0;
|
|
|
|
|
u_int32_t segment;
|
|
|
|
|
int c;
|
|
|
|
|
int s;
|
|
|
|
|
|
|
|
|
|
prologue(ad, V_ADP_FONT, 1);
|
|
|
|
|
|
|
|
|
|
if (fontsize < 14) {
|
|
|
|
|
/* FONT_8 */
|
|
|
|
|
fontsize = 8;
|
|
|
|
|
} else if (fontsize >= 32) {
|
|
|
|
|
fontsize = 32;
|
|
|
|
|
} else if (fontsize >= 16) {
|
|
|
|
|
/* FONT_16 */
|
|
|
|
|
fontsize = 16;
|
|
|
|
|
} else {
|
|
|
|
|
/* FONT_14 */
|
|
|
|
|
fontsize = 14;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (page < 0 || page >= 8)
|
|
|
|
|
return 1;
|
|
|
|
|
segment = VIDEOMEM + 0x4000*page;
|
|
|
|
|
if (page > 3)
|
|
|
|
|
segment -= 0xe000;
|
|
|
|
|
|
1998-09-24 13:20:47 +00:00
|
|
|
|
#ifdef SC_ALT_SEQACCESS
|
1998-09-15 18:16:39 +00:00
|
|
|
|
if (adapter[ad].va_type == KD_VGA) { /* what about EGA? XXX */
|
|
|
|
|
s = splhigh();
|
|
|
|
|
outb(TSIDX, 0x00); outb(TSREG, 0x01);
|
|
|
|
|
outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */
|
|
|
|
|
outb(TSIDX, 0x01); outb(TSREG, val | 0x20);
|
|
|
|
|
outb(TSIDX, 0x00); outb(TSREG, 0x03);
|
|
|
|
|
splx(s);
|
|
|
|
|
}
|
1998-09-23 09:59:00 +00:00
|
|
|
|
#endif
|
1998-09-15 18:16:39 +00:00
|
|
|
|
|
|
|
|
|
set_font_mode(&adapter[ad], buf);
|
|
|
|
|
if (fontsize == 32) {
|
|
|
|
|
generic_bcopy((void *)BIOS_PADDRTOVADDR(segment + ch*32), data,
|
|
|
|
|
fontsize*count);
|
|
|
|
|
} else {
|
|
|
|
|
for (c = ch; count > 0; ++c, --count) {
|
|
|
|
|
generic_bcopy((void *)BIOS_PADDRTOVADDR(segment + c*32), data,
|
|
|
|
|
fontsize);
|
|
|
|
|
data += fontsize;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
set_normal_mode(&adapter[ad], buf);
|
|
|
|
|
|
1998-09-24 13:20:47 +00:00
|
|
|
|
#ifdef SC_ALT_SEQACCESS
|
1998-09-15 18:16:39 +00:00
|
|
|
|
if (adapter[ad].va_type == KD_VGA) {
|
|
|
|
|
s = splhigh();
|
|
|
|
|
outb(TSIDX, 0x00); outb(TSREG, 0x01);
|
|
|
|
|
outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */
|
|
|
|
|
outb(TSIDX, 0x00); outb(TSREG, 0x03);
|
|
|
|
|
splx(s);
|
|
|
|
|
}
|
1998-09-23 09:59:00 +00:00
|
|
|
|
#endif
|
1998-09-15 18:16:39 +00:00
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
1998-09-23 09:59:00 +00:00
|
|
|
|
/*
|
|
|
|
|
* load_font():
|
|
|
|
|
* Set the font data in the requested font page.
|
|
|
|
|
* NOTE: it appears that some recent video adapters do not support
|
|
|
|
|
* the font page other than 0... XXX
|
|
|
|
|
*
|
|
|
|
|
* EGA/VGA
|
|
|
|
|
*/
|
1998-09-15 18:16:39 +00:00
|
|
|
|
static int
|
|
|
|
|
vid_load_font(int ad, int page, int fontsize, u_char *data, int ch, int count)
|
|
|
|
|
{
|
|
|
|
|
u_char buf[PARAM_BUFSIZE];
|
|
|
|
|
u_char val = 0;
|
|
|
|
|
u_int32_t segment;
|
|
|
|
|
int c;
|
|
|
|
|
int s;
|
|
|
|
|
|
|
|
|
|
prologue(ad, V_ADP_FONT, 1);
|
|
|
|
|
|
|
|
|
|
if (fontsize < 14) {
|
|
|
|
|
/* FONT_8 */
|
|
|
|
|
fontsize = 8;
|
|
|
|
|
} else if (fontsize >= 32) {
|
|
|
|
|
fontsize = 32;
|
|
|
|
|
} else if (fontsize >= 16) {
|
|
|
|
|
/* FONT_16 */
|
|
|
|
|
fontsize = 16;
|
|
|
|
|
} else {
|
|
|
|
|
/* FONT_14 */
|
|
|
|
|
fontsize = 14;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (page < 0 || page >= 8)
|
|
|
|
|
return 1;
|
|
|
|
|
segment = VIDEOMEM + 0x4000*page;
|
|
|
|
|
if (page > 3)
|
|
|
|
|
segment -= 0xe000;
|
|
|
|
|
|
1998-09-24 13:20:47 +00:00
|
|
|
|
#ifdef SC_ALT_SEQACCESS
|
1998-09-15 18:16:39 +00:00
|
|
|
|
if (adapter[ad].va_type == KD_VGA) { /* what about EGA? XXX */
|
|
|
|
|
s = splhigh();
|
|
|
|
|
outb(TSIDX, 0x00); outb(TSREG, 0x01);
|
|
|
|
|
outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */
|
|
|
|
|
outb(TSIDX, 0x01); outb(TSREG, val | 0x20);
|
|
|
|
|
outb(TSIDX, 0x00); outb(TSREG, 0x03);
|
|
|
|
|
splx(s);
|
|
|
|
|
}
|
1998-09-23 09:59:00 +00:00
|
|
|
|
#endif
|
1998-09-15 18:16:39 +00:00
|
|
|
|
|
|
|
|
|
set_font_mode(&adapter[ad], buf);
|
|
|
|
|
if (fontsize == 32) {
|
|
|
|
|
generic_bcopy(data, (void *)BIOS_PADDRTOVADDR(segment + ch*32),
|
|
|
|
|
fontsize*count);
|
|
|
|
|
} else {
|
|
|
|
|
for (c = ch; count > 0; ++c, --count) {
|
|
|
|
|
generic_bcopy(data, (void *)BIOS_PADDRTOVADDR(segment + c*32),
|
|
|
|
|
fontsize);
|
|
|
|
|
data += fontsize;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
set_normal_mode(&adapter[ad], buf);
|
|
|
|
|
|
1998-09-24 13:20:47 +00:00
|
|
|
|
#ifdef SC_ALT_SEQACCESS
|
1998-09-15 18:16:39 +00:00
|
|
|
|
if (adapter[ad].va_type == KD_VGA) {
|
|
|
|
|
s = splhigh();
|
|
|
|
|
outb(TSIDX, 0x00); outb(TSREG, 0x01);
|
|
|
|
|
outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */
|
|
|
|
|
outb(TSIDX, 0x00); outb(TSREG, 0x03);
|
|
|
|
|
splx(s);
|
|
|
|
|
}
|
1998-09-23 09:59:00 +00:00
|
|
|
|
#endif
|
1998-09-15 18:16:39 +00:00
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
1998-09-23 09:59:00 +00:00
|
|
|
|
/*
|
|
|
|
|
* show_font():
|
|
|
|
|
* Activate the requested font page.
|
|
|
|
|
* NOTE: it appears that some recent video adapters do not support
|
|
|
|
|
* the font page other than 0... XXX
|
|
|
|
|
*
|
|
|
|
|
* EGA/VGA
|
|
|
|
|
*/
|
1998-09-15 18:16:39 +00:00
|
|
|
|
static int
|
|
|
|
|
vid_show_font(int ad, int page)
|
|
|
|
|
{
|
|
|
|
|
static u_char cg[] = { 0x00, 0x05, 0x0a, 0x0f, 0x30, 0x35, 0x3a, 0x3f };
|
|
|
|
|
int s;
|
|
|
|
|
|
|
|
|
|
prologue(ad, V_ADP_FONT, 1);
|
|
|
|
|
if (page < 0 || page >= 8)
|
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
s = splhigh();
|
|
|
|
|
outb(TSIDX, 0x03); outb(TSREG, cg[page]);
|
|
|
|
|
splx(s);
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
1998-09-23 09:59:00 +00:00
|
|
|
|
/*
|
|
|
|
|
* save_palette():
|
|
|
|
|
* Read DAC values. The values have expressed in 8 bits.
|
|
|
|
|
*
|
|
|
|
|
* VGA
|
|
|
|
|
*/
|
1998-09-15 18:16:39 +00:00
|
|
|
|
static int
|
|
|
|
|
vid_save_palette(int ad, u_char *palette)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
prologue(ad, V_ADP_PALETTE, 1);
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* We store 8 bit values in the palette buffer, while the standard
|
|
|
|
|
* VGA has 6 bit DAC .
|
|
|
|
|
*/
|
|
|
|
|
outb(PALRADR, 0x00);
|
|
|
|
|
for (i = 0; i < 256*3; ++i)
|
|
|
|
|
palette[i] = inb(PALDATA) << 2;
|
|
|
|
|
inb(adapter[ad].va_crtc_addr + 6); /* reset flip/flop */
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
1998-09-23 09:59:00 +00:00
|
|
|
|
/*
|
|
|
|
|
* load_palette():
|
|
|
|
|
* Set DAC values.
|
|
|
|
|
*
|
|
|
|
|
* VGA
|
|
|
|
|
*/
|
1998-09-15 18:16:39 +00:00
|
|
|
|
static int
|
|
|
|
|
vid_load_palette(int ad, u_char *palette)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
prologue(ad, V_ADP_PALETTE, 1);
|
|
|
|
|
|
|
|
|
|
outb(PIXMASK, 0xff); /* no pixelmask */
|
|
|
|
|
outb(PALWADR, 0x00);
|
|
|
|
|
for (i = 0; i < 256*3; ++i)
|
|
|
|
|
outb(PALDATA, palette[i] >> 2);
|
|
|
|
|
inb(adapter[ad].va_crtc_addr + 6); /* reset flip/flop */
|
|
|
|
|
outb(ATC, 0x20); /* enable palette */
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
1998-09-23 09:59:00 +00:00
|
|
|
|
/*
|
|
|
|
|
* set_border():
|
|
|
|
|
* Change the border color.
|
|
|
|
|
*
|
|
|
|
|
* CGA/EGA/VGA
|
|
|
|
|
*/
|
1998-09-15 18:16:39 +00:00
|
|
|
|
static int
|
|
|
|
|
vid_set_border(int ad, int color)
|
|
|
|
|
{
|
|
|
|
|
prologue(ad, V_ADP_BORDER, 1);
|
|
|
|
|
|
|
|
|
|
switch (adapter[ad].va_type) {
|
|
|
|
|
case KD_EGA:
|
|
|
|
|
case KD_VGA:
|
|
|
|
|
inb(adapter[ad].va_crtc_addr + 6); /* reset flip-flop */
|
|
|
|
|
outb(ATC, 0x31); outb(ATC, color & 0xff);
|
|
|
|
|
break;
|
|
|
|
|
case KD_CGA:
|
|
|
|
|
outb(adapter[ad].va_crtc_addr + 5, color & 0x0f); /* color select register */
|
|
|
|
|
break;
|
|
|
|
|
case KD_MONO:
|
|
|
|
|
case KD_HERCULES:
|
|
|
|
|
default:
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
1998-09-23 09:59:00 +00:00
|
|
|
|
/*
|
|
|
|
|
* save_state():
|
|
|
|
|
* Read video register values.
|
|
|
|
|
* NOTE: this function only reads the standard EGA/VGA registers.
|
|
|
|
|
* any extra/extended registers of SVGA adapters are not saved.
|
|
|
|
|
*
|
|
|
|
|
* VGA
|
|
|
|
|
*/
|
1998-09-15 18:16:39 +00:00
|
|
|
|
static int
|
|
|
|
|
vid_save_state(int ad, void *p, size_t size)
|
|
|
|
|
{
|
|
|
|
|
video_info_t info;
|
|
|
|
|
u_char *buf;
|
|
|
|
|
int crtc_addr;
|
|
|
|
|
int i, j;
|
|
|
|
|
int s;
|
|
|
|
|
|
|
|
|
|
if (size == 0) {
|
|
|
|
|
/* return the required buffer size */
|
|
|
|
|
prologue(ad, V_ADP_STATESAVE, 0);
|
|
|
|
|
return sizeof(adp_state_t);
|
|
|
|
|
} else {
|
|
|
|
|
prologue(ad, V_ADP_STATESAVE, 1);
|
|
|
|
|
if (size < sizeof(adp_state_t))
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
((adp_state_t *)p)->sig = V_STATE_SIG;
|
|
|
|
|
buf = ((adp_state_t *)p)->regs;
|
|
|
|
|
bzero(buf, V_MODE_PARAM_SIZE);
|
|
|
|
|
crtc_addr = adapter[ad].va_crtc_addr;
|
|
|
|
|
|
|
|
|
|
s = splhigh();
|
|
|
|
|
|
|
|
|
|
outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */
|
|
|
|
|
for (i = 0, j = 5; i < 4; i++) {
|
|
|
|
|
outb(TSIDX, i + 1);
|
|
|
|
|
buf[j++] = inb(TSREG);
|
|
|
|
|
}
|
|
|
|
|
buf[9] = inb(MISC + 10); /* dot-clock */
|
|
|
|
|
outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */
|
|
|
|
|
|
|
|
|
|
for (i = 0, j = 10; i < 25; i++) { /* crtc */
|
|
|
|
|
outb(crtc_addr, i);
|
|
|
|
|
buf[j++] = inb(crtc_addr + 1);
|
|
|
|
|
}
|
|
|
|
|
for (i = 0, j = 35; i < 20; i++) { /* attribute ctrl */
|
|
|
|
|
inb(crtc_addr + 6); /* reset flip-flop */
|
|
|
|
|
outb(ATC, i);
|
|
|
|
|
buf[j++] = inb(ATC + 1);
|
|
|
|
|
}
|
|
|
|
|
for (i = 0, j = 55; i < 9; i++) { /* graph data ctrl */
|
|
|
|
|
outb(GDCIDX, i);
|
|
|
|
|
buf[j++] = inb(GDCREG);
|
|
|
|
|
}
|
|
|
|
|
inb(crtc_addr + 6); /* reset flip-flop */
|
|
|
|
|
outb(ATC, 0x20); /* enable palette */
|
|
|
|
|
|
|
|
|
|
splx(s);
|
|
|
|
|
|
|
|
|
|
#if 1
|
|
|
|
|
if (vid_get_info(ad, adapter[ad].va_mode, &info) == 0) {
|
|
|
|
|
if (info.vi_flags & V_INFO_GRAPHICS) {
|
|
|
|
|
buf[0] = info.vi_width/info.vi_cwidth; /* COLS */
|
|
|
|
|
buf[1] = info.vi_height/info.vi_cheight - 1; /* ROWS */
|
|
|
|
|
} else {
|
|
|
|
|
buf[0] = info.vi_width; /* COLS */
|
|
|
|
|
buf[1] = info.vi_height - 1; /* ROWS */
|
|
|
|
|
}
|
|
|
|
|
buf[2] = info.vi_cheight; /* POINTS */
|
|
|
|
|
} else {
|
|
|
|
|
/* XXX: shouldn't be happening... */
|
|
|
|
|
printf("video#%d: failed to obtain mode info. (vid_save_state())\n",
|
|
|
|
|
ad);
|
|
|
|
|
}
|
|
|
|
|
#else
|
|
|
|
|
buf[0] = *(u_int8_t *)BIOS_PADDRTOVADDR(0x44a); /* COLS */
|
|
|
|
|
buf[1] = *(u_int8_t *)BIOS_PADDRTOVADDR(0x484); /* ROWS */
|
|
|
|
|
buf[2] = *(u_int8_t *)BIOS_PADDRTOVADDR(0x485); /* POINTS */
|
|
|
|
|
buf[3] = *(u_int8_t *)BIOS_PADDRTOVADDR(0x44c);
|
|
|
|
|
buf[4] = *(u_int8_t *)BIOS_PADDRTOVADDR(0x44d);
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
1998-09-23 09:59:00 +00:00
|
|
|
|
/*
|
|
|
|
|
* load_state():
|
|
|
|
|
* Set video registers at once.
|
|
|
|
|
* NOTE: this function only updates the standard EGA/VGA registers.
|
|
|
|
|
* any extra/extended registers of SVGA adapters are not changed.
|
|
|
|
|
*
|
|
|
|
|
* EGA/VGA
|
|
|
|
|
*/
|
1998-09-15 18:16:39 +00:00
|
|
|
|
static int
|
|
|
|
|
vid_load_state(int ad, void *p)
|
|
|
|
|
{
|
|
|
|
|
u_char *buf;
|
|
|
|
|
int crtc_addr;
|
|
|
|
|
int s;
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
prologue(ad, V_ADP_STATELOAD, 1);
|
|
|
|
|
if (((adp_state_t *)p)->sig != V_STATE_SIG)
|
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
buf = ((adp_state_t *)p)->regs;
|
|
|
|
|
crtc_addr = adapter[ad].va_crtc_addr;
|
|
|
|
|
|
|
|
|
|
s = splhigh();
|
|
|
|
|
|
|
|
|
|
outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */
|
|
|
|
|
for (i = 0; i < 4; ++i) { /* program sequencer */
|
|
|
|
|
outb(TSIDX, i + 1);
|
|
|
|
|
outb(TSREG, buf[i + 5]);
|
|
|
|
|
}
|
|
|
|
|
outb(MISC, buf[9]); /* set dot-clock */
|
|
|
|
|
outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */
|
|
|
|
|
outb(crtc_addr, 0x11);
|
|
|
|
|
outb(crtc_addr + 1, inb(crtc_addr + 1) & 0x7F);
|
|
|
|
|
for (i = 0; i < 25; ++i) { /* program crtc */
|
|
|
|
|
outb(crtc_addr, i);
|
|
|
|
|
outb(crtc_addr + 1, buf[i + 10]);
|
|
|
|
|
}
|
|
|
|
|
inb(crtc_addr+6); /* reset flip-flop */
|
|
|
|
|
for (i = 0; i < 20; ++i) { /* program attribute ctrl */
|
|
|
|
|
outb(ATC, i);
|
|
|
|
|
outb(ATC, buf[i + 35]);
|
|
|
|
|
}
|
|
|
|
|
for (i = 0; i < 9; ++i) { /* program graph data ctrl */
|
|
|
|
|
outb(GDCIDX, i);
|
|
|
|
|
outb(GDCREG, buf[i + 55]);
|
|
|
|
|
}
|
|
|
|
|
inb(crtc_addr + 6); /* reset flip-flop */
|
|
|
|
|
outb(ATC, 0x20); /* enable palette */
|
|
|
|
|
|
|
|
|
|
if (ad == V_ADP_PRIMARY) {
|
|
|
|
|
*(u_int8_t *)BIOS_PADDRTOVADDR(0x44a) = buf[0]; /* COLS */
|
|
|
|
|
*(u_int8_t *)BIOS_PADDRTOVADDR(0x484) = buf[1] + rows_offset - 1; /* ROWS */
|
|
|
|
|
*(u_int8_t *)BIOS_PADDRTOVADDR(0x485) = buf[2]; /* POINTS */
|
|
|
|
|
#if 0
|
|
|
|
|
*(u_int8_t *)BIOS_PADDRTOVADDR(0x44c) = buf[3];
|
|
|
|
|
*(u_int8_t *)BIOS_PADDRTOVADDR(0x44d) = buf[4];
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
splx(s);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
1998-09-23 09:59:00 +00:00
|
|
|
|
/*
|
|
|
|
|
* set_origin():
|
|
|
|
|
* Change the origin (window mapping) of the banked frame buffer.
|
|
|
|
|
*/
|
1998-09-15 18:16:39 +00:00
|
|
|
|
static int
|
|
|
|
|
vid_set_origin(int ad, off_t offset)
|
|
|
|
|
{
|
|
|
|
|
/*
|
|
|
|
|
* The standard video modes do not require window mapping;
|
|
|
|
|
* always return error.
|
|
|
|
|
*/
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
1998-09-23 09:59:00 +00:00
|
|
|
|
/*
|
|
|
|
|
* read_hw_cursor():
|
|
|
|
|
* Read the position of the hardware text cursor.
|
|
|
|
|
*
|
|
|
|
|
* all adapters
|
|
|
|
|
*/
|
1998-09-15 18:16:39 +00:00
|
|
|
|
static int
|
|
|
|
|
vid_read_hw_cursor(int ad, int *col, int *row)
|
|
|
|
|
{
|
|
|
|
|
video_info_t info;
|
|
|
|
|
u_int16_t off;
|
|
|
|
|
|
|
|
|
|
if (!init_done)
|
|
|
|
|
return 1;
|
|
|
|
|
if ((ad < 0) || (ad >= adapters))
|
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
(*biosvidsw.get_info)(ad, adapter[ad].va_mode, &info);
|
|
|
|
|
if (info.vi_flags & V_INFO_GRAPHICS)
|
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
outb(adapter[ad].va_crtc_addr, 14);
|
|
|
|
|
off = inb(adapter[ad].va_crtc_addr + 1);
|
|
|
|
|
outb(adapter[ad].va_crtc_addr, 15);
|
|
|
|
|
off = (off << 8) | inb(adapter[ad].va_crtc_addr + 1);
|
|
|
|
|
|
|
|
|
|
*row = off / info.vi_width;
|
|
|
|
|
*col = off % info.vi_width;
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
1998-09-23 09:59:00 +00:00
|
|
|
|
/*
|
|
|
|
|
* set_hw_cursor():
|
|
|
|
|
* Move the hardware text cursor. If the requested position is (-1, -1),
|
|
|
|
|
* the text cursor won't be shown.
|
|
|
|
|
*
|
|
|
|
|
* all adapters
|
|
|
|
|
*/
|
1998-09-15 18:16:39 +00:00
|
|
|
|
static int
|
|
|
|
|
vid_set_hw_cursor(int ad, int col, int row)
|
|
|
|
|
{
|
|
|
|
|
video_info_t info;
|
|
|
|
|
u_int16_t off;
|
|
|
|
|
|
|
|
|
|
if (!init_done)
|
|
|
|
|
return 1;
|
|
|
|
|
if ((ad < 0) || (ad >= adapters))
|
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
(*biosvidsw.get_info)(ad, adapter[ad].va_mode, &info);
|
|
|
|
|
if (info.vi_flags & V_INFO_GRAPHICS)
|
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
if ((col == -1) || (row == -1))
|
|
|
|
|
off = 0xffff;
|
|
|
|
|
else
|
|
|
|
|
off = row*info.vi_width + col;
|
|
|
|
|
outb(adapter[ad].va_crtc_addr, 14);
|
|
|
|
|
outb(adapter[ad].va_crtc_addr + 1, off >> 8);
|
|
|
|
|
outb(adapter[ad].va_crtc_addr, 15);
|
|
|
|
|
outb(adapter[ad].va_crtc_addr + 1, off & 0x00ff);
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static char
|
|
|
|
|
*adapter_name(int type)
|
|
|
|
|
{
|
|
|
|
|
static struct {
|
|
|
|
|
int type;
|
|
|
|
|
char *name;
|
|
|
|
|
} names[] = {
|
|
|
|
|
{ KD_MONO, "MDA" },
|
|
|
|
|
{ KD_HERCULES, "Hercules" },
|
|
|
|
|
{ KD_CGA, "CGA" },
|
|
|
|
|
{ KD_EGA, "EGA" },
|
|
|
|
|
{ KD_VGA, "VGA" },
|
|
|
|
|
{ KD_PC98, "PC-98xx" },
|
|
|
|
|
{ -1, "Unknown" },
|
|
|
|
|
};
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
for (i = 0; names[i].type != -1; ++i)
|
|
|
|
|
if (names[i].type == type)
|
|
|
|
|
break;
|
|
|
|
|
return names[i].name;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
dump_adp_info(int ad, video_adapter_t *adp, int level)
|
|
|
|
|
{
|
|
|
|
|
if (level <= 0)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
printf("video#%d: adapter type:%s (%d), flags:0x%x, CRTC:0x%x\n",
|
|
|
|
|
ad, adapter_name(adp->va_type), adp->va_type,
|
|
|
|
|
adp->va_flags, adp->va_crtc_addr);
|
|
|
|
|
printf("video#%d: init mode:%d, bios mode:%d, current mode:%d\n",
|
|
|
|
|
ad, adp->va_initial_mode, adp->va_initial_bios_mode, adp->va_mode);
|
|
|
|
|
printf("video#%d: window:0x%x size:%dk gran:%dk, buf:0x%x size:%dk\n",
|
|
|
|
|
ad,
|
|
|
|
|
adp->va_window, adp->va_window_size, adp->va_window_gran,
|
|
|
|
|
adp->va_buffer, adp->va_buffer_size);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
dump_mode_info(int ad, video_info_t *info, int level)
|
|
|
|
|
{
|
|
|
|
|
if (level <= 0)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
printf("video#%d: mode:%d, flags:0x%x ",
|
|
|
|
|
ad, info->vi_mode, info->vi_flags);
|
|
|
|
|
if (info->vi_flags & V_INFO_GRAPHICS)
|
|
|
|
|
printf("G %dx%dx%d, %d plane(s), font:%dx%d, ",
|
|
|
|
|
info->vi_width, info->vi_height,
|
|
|
|
|
info->vi_depth, info->vi_planes,
|
|
|
|
|
info->vi_cwidth, info->vi_cheight);
|
|
|
|
|
else
|
|
|
|
|
printf("T %dx%d, font:%dx%d, ",
|
|
|
|
|
info->vi_width, info->vi_height,
|
|
|
|
|
info->vi_cwidth, info->vi_cheight);
|
|
|
|
|
printf("win:0x%x\n", info->vi_window);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
dump_buffer(u_char *buf, size_t len)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
for(i = 0; i < len;) {
|
|
|
|
|
printf("%02x ", buf[i]);
|
|
|
|
|
if ((++i % 16) == 0)
|
|
|
|
|
printf("\n");
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1998-09-23 09:59:00 +00:00
|
|
|
|
/*
|
|
|
|
|
* diag():
|
|
|
|
|
* Print some information about the video adapter and video modes,
|
|
|
|
|
* with requested level of details.
|
|
|
|
|
*
|
|
|
|
|
* all adapters
|
|
|
|
|
*/
|
1998-09-15 18:16:39 +00:00
|
|
|
|
static int
|
|
|
|
|
vid_diag(int level)
|
|
|
|
|
{
|
|
|
|
|
video_info_t info;
|
|
|
|
|
u_char *mp;
|
|
|
|
|
int ad;
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
if (!init_done)
|
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
if (level > 0) {
|
|
|
|
|
printf("video: RTC equip. code:0x%02x, DCC code:0x%02x\n",
|
|
|
|
|
rtcin(RTC_EQUIPMENT), *(u_int8_t *)BIOS_PADDRTOVADDR(0x488));
|
|
|
|
|
printf("video: CRTC:0x%x, video option:0x%02x, ",
|
|
|
|
|
*(u_int16_t *)BIOS_PADDRTOVADDR(0x463),
|
|
|
|
|
*(u_int8_t *)BIOS_PADDRTOVADDR(0x487));
|
|
|
|
|
printf("rows:%d, cols:%d, font height:%d\n",
|
|
|
|
|
*(u_int8_t *)BIOS_PADDRTOVADDR(0x44a),
|
|
|
|
|
*(u_int8_t *)BIOS_PADDRTOVADDR(0x484) + 1,
|
|
|
|
|
*(u_int8_t *)BIOS_PADDRTOVADDR(0x485));
|
|
|
|
|
printf("video: param table EGA/VGA:%p, CGA/MDA:%p\n",
|
|
|
|
|
video_mode_ptr, video_mode_ptr2);
|
|
|
|
|
printf("video: rows_offset:%d\n", rows_offset);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
for (ad = 0; ad < adapters; ++ad) {
|
|
|
|
|
dump_adp_info(ad, &adapter[ad], level);
|
|
|
|
|
|
|
|
|
|
if (!(adapter[ad].va_flags & V_ADP_MODECHANGE)) {
|
|
|
|
|
vid_get_info(ad, adapter[ad].va_initial_mode, &info);
|
|
|
|
|
dump_mode_info(ad, &info, level);
|
|
|
|
|
} else {
|
|
|
|
|
for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) {
|
|
|
|
|
if (bios_vmode[i].vi_mode == NA)
|
|
|
|
|
continue;
|
|
|
|
|
if (get_mode_param(bios_vmode[i].vi_mode) == NULL)
|
|
|
|
|
continue;
|
|
|
|
|
dump_mode_info(ad, &bios_vmode[i], level);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if ((adapter[ad].va_type != KD_EGA) && (adapter[ad].va_type != KD_VGA))
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
if (video_mode_ptr == NULL)
|
|
|
|
|
printf("video#%d: WARNING: video mode switching is not fully supported on this adapter\n", ad);
|
|
|
|
|
|
|
|
|
|
if (level <= 0)
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
if (adapter[ad].va_type == KD_VGA) {
|
|
|
|
|
printf("VGA parameters upon power-up\n");
|
|
|
|
|
dump_buffer(adpstate.regs, sizeof(adpstate.regs));
|
|
|
|
|
printf("VGA parameters in BIOS for mode %d\n",
|
|
|
|
|
adapter[ad].va_initial_mode);
|
|
|
|
|
dump_buffer(adpstate2.regs, sizeof(adpstate2.regs));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
mp = get_mode_param(adapter[ad].va_initial_mode);
|
|
|
|
|
if (mp == NULL) /* this shouldn't be happening */
|
|
|
|
|
continue;
|
|
|
|
|
printf("EGA/VGA parameters to be used for mode %d\n",
|
|
|
|
|
adapter[ad].va_initial_mode);
|
|
|
|
|
dump_buffer(mp, V_MODE_PARAM_SIZE);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#endif /* NSC > 0 */
|