1921 lines
44 KiB
C
1921 lines
44 KiB
C
/*-
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* Copyright (c) 1998 Kazutaka YOKOTA and Michael Smith
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* Copyright (c) 2009-2010 Jung-uk Kim <jkim@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer as
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* the first lines of this file unmodified.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_vga.h"
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#include "opt_vesa.h"
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#ifndef VGA_NO_MODE_CHANGE
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/malloc.h>
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#include <sys/fbio.h>
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#include <vm/vm.h>
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#include <vm/vm_extern.h>
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#include <vm/vm_kern.h>
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#include <vm/vm_param.h>
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#include <vm/pmap.h>
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#include <machine/pc/bios.h>
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#include <dev/fb/vesa.h>
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#include <dev/fb/fbreg.h>
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#include <dev/fb/vgareg.h>
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#include <dev/pci/pcivar.h>
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#include <isa/isareg.h>
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#include <compat/x86bios/x86bios.h>
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#define VESA_VIA_CLE266 "VIA CLE266\r\n"
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#ifndef VESA_DEBUG
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#define VESA_DEBUG 0
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#endif
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/* VESA video adapter state buffer stub */
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struct adp_state {
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int sig;
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#define V_STATE_SIG 0x61736576
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u_char regs[1];
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};
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typedef struct adp_state adp_state_t;
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/* VESA video adapter */
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static video_adapter_t *vesa_adp = NULL;
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static ssize_t vesa_state_buf_size = -1;
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/* VESA functions */
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#if 0
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static int vesa_nop(void);
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#endif
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static int vesa_error(void);
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static vi_probe_t vesa_probe;
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static vi_init_t vesa_init;
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static vi_get_info_t vesa_get_info;
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static vi_query_mode_t vesa_query_mode;
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static vi_set_mode_t vesa_set_mode;
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static vi_save_font_t vesa_save_font;
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static vi_load_font_t vesa_load_font;
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static vi_show_font_t vesa_show_font;
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static vi_save_palette_t vesa_save_palette;
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static vi_load_palette_t vesa_load_palette;
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static vi_set_border_t vesa_set_border;
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static vi_save_state_t vesa_save_state;
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static vi_load_state_t vesa_load_state;
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static vi_set_win_org_t vesa_set_origin;
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static vi_read_hw_cursor_t vesa_read_hw_cursor;
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static vi_set_hw_cursor_t vesa_set_hw_cursor;
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static vi_set_hw_cursor_shape_t vesa_set_hw_cursor_shape;
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static vi_blank_display_t vesa_blank_display;
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static vi_mmap_t vesa_mmap;
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static vi_ioctl_t vesa_ioctl;
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static vi_clear_t vesa_clear;
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static vi_fill_rect_t vesa_fill_rect;
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static vi_bitblt_t vesa_bitblt;
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static vi_diag_t vesa_diag;
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static int vesa_bios_info(int level);
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static video_switch_t vesavidsw = {
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vesa_probe,
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vesa_init,
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vesa_get_info,
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vesa_query_mode,
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vesa_set_mode,
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vesa_save_font,
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vesa_load_font,
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vesa_show_font,
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vesa_save_palette,
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vesa_load_palette,
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vesa_set_border,
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vesa_save_state,
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vesa_load_state,
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vesa_set_origin,
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vesa_read_hw_cursor,
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vesa_set_hw_cursor,
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vesa_set_hw_cursor_shape,
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vesa_blank_display,
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vesa_mmap,
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vesa_ioctl,
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vesa_clear,
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vesa_fill_rect,
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vesa_bitblt,
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vesa_error,
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vesa_error,
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vesa_diag,
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};
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static video_switch_t *prevvidsw;
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/* VESA BIOS video modes */
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#define VESA_MAXMODES 64
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#define EOT (-1)
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#define NA (-2)
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#define MODE_TABLE_DELTA 8
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static int vesa_vmode_max = 0;
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static video_info_t vesa_vmode_empty = { EOT };
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static video_info_t *vesa_vmode = &vesa_vmode_empty;
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static int vesa_init_done = FALSE;
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static int has_vesa_bios = FALSE;
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static struct vesa_info *vesa_adp_info = NULL;
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static u_int16_t *vesa_vmodetab = NULL;
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static char *vesa_oemstr = NULL;
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static char *vesa_venderstr = NULL;
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static char *vesa_prodstr = NULL;
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static char *vesa_revstr = NULL;
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/* local macros and functions */
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#define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff))
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static int int10_set_mode(int mode);
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static int vesa_bios_post(void);
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static int vesa_bios_get_mode(int mode, struct vesa_mode *vmode, int flags);
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static int vesa_bios_set_mode(int mode);
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#if 0
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static int vesa_bios_get_dac(void);
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#endif
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static int vesa_bios_set_dac(int bits);
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static int vesa_bios_save_palette(int start, int colors, u_char *palette,
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int bits);
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static int vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g,
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u_char *b, int bits);
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static int vesa_bios_load_palette(int start, int colors, u_char *palette,
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int bits);
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static int vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g,
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u_char *b, int bits);
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#define STATE_SIZE 0
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#define STATE_SAVE 1
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#define STATE_LOAD 2
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#define STATE_HW (1<<0)
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#define STATE_DATA (1<<1)
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#define STATE_DAC (1<<2)
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#define STATE_REG (1<<3)
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#define STATE_MOST (STATE_HW | STATE_DATA | STATE_REG)
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#define STATE_ALL (STATE_HW | STATE_DATA | STATE_DAC | STATE_REG)
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static ssize_t vesa_bios_state_buf_size(void);
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static int vesa_bios_save_restore(int code, void *p, size_t size);
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#ifdef MODE_TABLE_BROKEN
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static int vesa_bios_get_line_length(void);
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#endif
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static int vesa_bios_set_line_length(int pixel, int *bytes, int *lines);
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#if 0
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static int vesa_bios_get_start(int *x, int *y);
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#endif
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static int vesa_bios_set_start(int x, int y);
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static int vesa_map_gen_mode_num(int type, int color, int mode);
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static int vesa_translate_flags(u_int16_t vflags);
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static int vesa_translate_mmodel(u_int8_t vmodel);
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static int vesa_get_bpscanline(struct vesa_mode *vmode);
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static int vesa_bios_init(void);
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static void vesa_clear_modes(video_info_t *info, int color);
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#if 0
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static int vesa_get_origin(video_adapter_t *adp, off_t *offset);
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#endif
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/* INT 10 BIOS calls */
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static int
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int10_set_mode(int mode)
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{
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x86regs_t regs;
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x86bios_init_regs(®s);
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regs.R_AL = mode;
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x86bios_intr(®s, 0x10);
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return (0);
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}
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static int
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vesa_bios_post(void)
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{
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x86regs_t regs;
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devclass_t dc;
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device_t *devs;
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device_t dev;
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int count, i, is_pci;
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if (x86bios_get_orm(0xc0000) == NULL)
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return (1);
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dev = NULL;
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is_pci = 0;
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/* Find the matching PCI video controller. */
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dc = devclass_find("vgapci");
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if (dc != NULL && devclass_get_devices(dc, &devs, &count) == 0) {
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for (i = 0; i < count; i++)
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if (device_get_flags(devs[i]) != 0 &&
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x86bios_match_device(0xc0000, devs[i])) {
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dev = devs[i];
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is_pci = 1;
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break;
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}
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free(devs, M_TEMP);
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}
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/* Try VGA if a PCI device is not found. */
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if (dev == NULL) {
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dc = devclass_find(VGA_DRIVER_NAME);
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if (dc != NULL)
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dev = devclass_get_device(dc, 0);
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}
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if (bootverbose)
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printf("%s: calling BIOS POST\n",
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dev == NULL ? "VESA" : device_get_nameunit(dev));
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x86bios_init_regs(®s);
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if (is_pci) {
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regs.R_AH = pci_get_bus(dev);
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regs.R_AL = (pci_get_slot(dev) << 3) |
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(pci_get_function(dev) & 0x07);
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}
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regs.R_DL = 0x80;
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x86bios_call(®s, 0xc000, 0x0003);
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if (x86bios_get_intr(0x10) == 0)
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return (1);
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return (0);
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}
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/* VESA BIOS calls */
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static int
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vesa_bios_get_mode(int mode, struct vesa_mode *vmode, int flags)
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{
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x86regs_t regs;
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uint32_t offs;
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void *buf;
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buf = x86bios_alloc(&offs, sizeof(*vmode), flags);
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if (buf == NULL)
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return (1);
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x86bios_init_regs(®s);
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regs.R_AX = 0x4f01;
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regs.R_CX = mode;
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regs.R_ES = X86BIOS_PHYSTOSEG(offs);
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regs.R_DI = X86BIOS_PHYSTOOFF(offs);
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x86bios_intr(®s, 0x10);
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if (regs.R_AX != 0x004f) {
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x86bios_free(buf, sizeof(*vmode));
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return (1);
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}
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bcopy(buf, vmode, sizeof(*vmode));
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x86bios_free(buf, sizeof(*vmode));
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return (0);
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}
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static int
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vesa_bios_set_mode(int mode)
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{
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x86regs_t regs;
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x86bios_init_regs(®s);
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regs.R_AX = 0x4f02;
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regs.R_BX = mode;
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x86bios_intr(®s, 0x10);
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return (regs.R_AX != 0x004f);
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}
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#if 0
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static int
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vesa_bios_get_dac(void)
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{
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x86regs_t regs;
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x86bios_init_regs(®s);
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regs.R_AX = 0x4f08;
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regs.R_BL = 1;
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x86bios_intr(®s, 0x10);
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if (regs.R_AX != 0x004f)
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return (6);
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return (regs.R_BH);
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}
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#endif
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static int
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vesa_bios_set_dac(int bits)
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{
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x86regs_t regs;
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x86bios_init_regs(®s);
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regs.R_AX = 0x4f08;
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/* regs.R_BL = 0; */
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regs.R_BH = bits;
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x86bios_intr(®s, 0x10);
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if (regs.R_AX != 0x004f)
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return (6);
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return (regs.R_BH);
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}
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static int
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vesa_bios_save_palette(int start, int colors, u_char *palette, int bits)
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{
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x86regs_t regs;
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uint32_t offs;
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u_char *p;
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int i;
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p = (u_char *)x86bios_alloc(&offs, colors * 4, M_NOWAIT);
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if (p == NULL)
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return (1);
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x86bios_init_regs(®s);
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regs.R_AX = 0x4f09;
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regs.R_BL = 1;
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regs.R_CX = colors;
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regs.R_DX = start;
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regs.R_ES = X86BIOS_PHYSTOSEG(offs);
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regs.R_DI = X86BIOS_PHYSTOOFF(offs);
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x86bios_intr(®s, 0x10);
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if (regs.R_AX != 0x004f) {
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x86bios_free(p, colors * 4);
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return (1);
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}
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bits = 8 - bits;
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for (i = 0; i < colors; ++i) {
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palette[i * 3] = p[i * 4 + 2] << bits;
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palette[i * 3 + 1] = p[i * 4 + 1] << bits;
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palette[i * 3 + 2] = p[i * 4] << bits;
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}
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x86bios_free(p, colors * 4);
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return (0);
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}
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static int
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vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, u_char *b,
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int bits)
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{
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x86regs_t regs;
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uint32_t offs;
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u_char *p;
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int i;
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p = (u_char *)x86bios_alloc(&offs, colors * 4, M_NOWAIT);
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if (p == NULL)
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return (1);
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x86bios_init_regs(®s);
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regs.R_AX = 0x4f09;
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regs.R_BL = 1;
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regs.R_CX = colors;
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regs.R_DX = start;
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regs.R_ES = X86BIOS_PHYSTOSEG(offs);
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regs.R_DI = X86BIOS_PHYSTOOFF(offs);
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x86bios_intr(®s, 0x10);
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if (regs.R_AX != 0x004f) {
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x86bios_free(p, colors * 4);
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return (1);
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}
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bits = 8 - bits;
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for (i = 0; i < colors; ++i) {
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r[i] = p[i * 4 + 2] << bits;
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g[i] = p[i * 4 + 1] << bits;
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b[i] = p[i * 4] << bits;
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}
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x86bios_free(p, colors * 4);
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return (0);
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}
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static int
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vesa_bios_load_palette(int start, int colors, u_char *palette, int bits)
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{
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x86regs_t regs;
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uint32_t offs;
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u_char *p;
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int i;
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p = (u_char *)x86bios_alloc(&offs, colors * 4, M_NOWAIT);
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if (p == NULL)
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return (1);
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x86bios_init_regs(®s);
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regs.R_AX = 0x4f09;
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/* regs.R_BL = 0; */
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regs.R_CX = colors;
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regs.R_DX = start;
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regs.R_ES = X86BIOS_PHYSTOSEG(offs);
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regs.R_DI = X86BIOS_PHYSTOOFF(offs);
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bits = 8 - bits;
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for (i = 0; i < colors; ++i) {
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p[i * 4] = palette[i * 3 + 2] >> bits;
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p[i * 4 + 1] = palette[i * 3 + 1] >> bits;
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p[i * 4 + 2] = palette[i * 3] >> bits;
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p[i * 4 + 3] = 0;
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}
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x86bios_intr(®s, 0x10);
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x86bios_free(p, colors * 4);
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return (regs.R_AX != 0x004f);
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}
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static int
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vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, u_char *b,
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int bits)
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{
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x86regs_t regs;
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uint32_t offs;
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u_char *p;
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int i;
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p = (u_char *)x86bios_alloc(&offs, colors * 4, M_NOWAIT);
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if (p == NULL)
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return (1);
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x86bios_init_regs(®s);
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regs.R_AX = 0x4f09;
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/* regs.R_BL = 0; */
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regs.R_CX = colors;
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regs.R_DX = start;
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regs.R_ES = X86BIOS_PHYSTOSEG(offs);
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regs.R_DI = X86BIOS_PHYSTOOFF(offs);
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bits = 8 - bits;
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for (i = 0; i < colors; ++i) {
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p[i * 4] = b[i] >> bits;
|
|
p[i * 4 + 1] = g[i] >> bits;
|
|
p[i * 4 + 2] = r[i] >> bits;
|
|
p[i * 4 + 3] = 0;
|
|
}
|
|
x86bios_intr(®s, 0x10);
|
|
x86bios_free(p, colors * 4);
|
|
|
|
return (regs.R_AX != 0x004f);
|
|
}
|
|
|
|
static ssize_t
|
|
vesa_bios_state_buf_size(void)
|
|
{
|
|
x86regs_t regs;
|
|
|
|
x86bios_init_regs(®s);
|
|
regs.R_AX = 0x4f04;
|
|
/* regs.R_DL = STATE_SIZE; */
|
|
regs.R_CX = STATE_ALL;
|
|
|
|
x86bios_intr(®s, 0x10);
|
|
|
|
if (regs.R_AX != 0x004f)
|
|
return (0);
|
|
|
|
return (regs.R_BX * 64);
|
|
}
|
|
|
|
static int
|
|
vesa_bios_save_restore(int code, void *p, size_t size)
|
|
{
|
|
x86regs_t regs;
|
|
uint32_t offs;
|
|
void *buf;
|
|
|
|
if (code != STATE_SAVE && code != STATE_LOAD)
|
|
return (1);
|
|
|
|
buf = x86bios_alloc(&offs, size, M_NOWAIT);
|
|
if (buf == NULL)
|
|
return (1);
|
|
|
|
x86bios_init_regs(®s);
|
|
regs.R_AX = 0x4f04;
|
|
regs.R_DL = code;
|
|
regs.R_CX = STATE_ALL;
|
|
|
|
regs.R_ES = X86BIOS_PHYSTOSEG(offs);
|
|
regs.R_BX = X86BIOS_PHYSTOOFF(offs);
|
|
|
|
switch (code) {
|
|
case STATE_SAVE:
|
|
x86bios_intr(®s, 0x10);
|
|
bcopy(buf, p, size);
|
|
break;
|
|
case STATE_LOAD:
|
|
bcopy(p, buf, size);
|
|
x86bios_intr(®s, 0x10);
|
|
break;
|
|
}
|
|
x86bios_free(buf, size);
|
|
|
|
return (regs.R_AX != 0x004f);
|
|
}
|
|
|
|
#ifdef MODE_TABLE_BROKEN
|
|
static int
|
|
vesa_bios_get_line_length(void)
|
|
{
|
|
x86regs_t regs;
|
|
|
|
x86bios_init_regs(®s);
|
|
regs.R_AX = 0x4f06;
|
|
regs.R_BL = 1;
|
|
|
|
x86bios_intr(®s, 0x10);
|
|
|
|
if (regs.R_AX != 0x004f)
|
|
return (-1);
|
|
|
|
return (regs.R_BX);
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
vesa_bios_set_line_length(int pixel, int *bytes, int *lines)
|
|
{
|
|
x86regs_t regs;
|
|
|
|
x86bios_init_regs(®s);
|
|
regs.R_AX = 0x4f06;
|
|
/* regs.R_BL = 0; */
|
|
regs.R_CX = pixel;
|
|
|
|
x86bios_intr(®s, 0x10);
|
|
|
|
#if VESA_DEBUG > 1
|
|
printf("bx:%d, cx:%d, dx:%d\n", regs.R_BX, regs.R_CX, regs.R_DX);
|
|
#endif
|
|
if (regs.R_AX != 0x004f)
|
|
return (-1);
|
|
|
|
if (bytes != NULL)
|
|
*bytes = regs.R_BX;
|
|
if (lines != NULL)
|
|
*lines = regs.R_DX;
|
|
|
|
return (0);
|
|
}
|
|
|
|
#if 0
|
|
static int
|
|
vesa_bios_get_start(int *x, int *y)
|
|
{
|
|
x86regs_t regs;
|
|
|
|
x86bios_init_regs(®s);
|
|
regs.R_AX = 0x4f07;
|
|
regs.R_BL = 1;
|
|
|
|
x86bios_intr(®s, 0x10);
|
|
|
|
if (regs.R_AX != 0x004f)
|
|
return (-1);
|
|
|
|
*x = regs.R_CX;
|
|
*y = regs.R_DX;
|
|
|
|
return (0);
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
vesa_bios_set_start(int x, int y)
|
|
{
|
|
x86regs_t regs;
|
|
|
|
x86bios_init_regs(®s);
|
|
regs.R_AX = 0x4f07;
|
|
regs.R_BL = 0x80;
|
|
regs.R_CX = x;
|
|
regs.R_DX = y;
|
|
|
|
x86bios_intr(®s, 0x10);
|
|
|
|
return (regs.R_AX != 0x004f);
|
|
}
|
|
|
|
/* map a generic video mode to a known mode */
|
|
static int
|
|
vesa_map_gen_mode_num(int type, int color, int mode)
|
|
{
|
|
static struct {
|
|
int from;
|
|
int to;
|
|
} mode_map[] = {
|
|
{ M_TEXT_132x25, M_VESA_C132x25 },
|
|
{ M_TEXT_132x43, M_VESA_C132x43 },
|
|
{ M_TEXT_132x50, M_VESA_C132x50 },
|
|
{ M_TEXT_132x60, M_VESA_C132x60 },
|
|
};
|
|
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);
|
|
}
|
|
|
|
static int
|
|
vesa_translate_flags(u_int16_t vflags)
|
|
{
|
|
static struct {
|
|
u_int16_t mask;
|
|
int set;
|
|
int reset;
|
|
} ftable[] = {
|
|
{ V_MODECOLOR, V_INFO_COLOR, 0 },
|
|
{ V_MODEGRAPHICS, V_INFO_GRAPHICS, 0 },
|
|
{ V_MODELFB, V_INFO_LINEAR, 0 },
|
|
{ V_MODENONVGA, V_INFO_NONVGA, 0 },
|
|
};
|
|
int flags;
|
|
int i;
|
|
|
|
for (flags = 0, i = 0; i < sizeof(ftable)/sizeof(ftable[0]); ++i) {
|
|
flags |= (vflags & ftable[i].mask) ?
|
|
ftable[i].set : ftable[i].reset;
|
|
}
|
|
return (flags);
|
|
}
|
|
|
|
static int
|
|
vesa_translate_mmodel(u_int8_t vmodel)
|
|
{
|
|
static struct {
|
|
u_int8_t vmodel;
|
|
int mmodel;
|
|
} mtable[] = {
|
|
{ V_MMTEXT, V_INFO_MM_TEXT },
|
|
{ V_MMCGA, V_INFO_MM_CGA },
|
|
{ V_MMHGC, V_INFO_MM_HGC },
|
|
{ V_MMEGA, V_INFO_MM_PLANAR },
|
|
{ V_MMPACKED, V_INFO_MM_PACKED },
|
|
{ V_MMDIRCOLOR, V_INFO_MM_DIRECT },
|
|
};
|
|
int i;
|
|
|
|
for (i = 0; mtable[i].mmodel >= 0; ++i) {
|
|
if (mtable[i].vmodel == vmodel)
|
|
return (mtable[i].mmodel);
|
|
}
|
|
return (V_INFO_MM_OTHER);
|
|
}
|
|
|
|
static int
|
|
vesa_get_bpscanline(struct vesa_mode *vmode)
|
|
{
|
|
int bpsl;
|
|
|
|
if ((vmode->v_modeattr & V_MODEGRAPHICS) != 0) {
|
|
/* Find the minimum length. */
|
|
switch (vmode->v_bpp / vmode->v_planes) {
|
|
case 1:
|
|
bpsl = vmode->v_width / 8;
|
|
break;
|
|
case 2:
|
|
bpsl = vmode->v_width / 4;
|
|
break;
|
|
case 4:
|
|
bpsl = vmode->v_width / 2;
|
|
break;
|
|
default:
|
|
bpsl = vmode->v_width * ((vmode->v_bpp + 7) / 8);
|
|
bpsl /= vmode->v_planes;
|
|
break;
|
|
}
|
|
|
|
/* Use VBE 3.0 information if it looks sane. */
|
|
if ((vmode->v_modeattr & V_MODELFB) != 0 &&
|
|
vesa_adp_info->v_version >= 0x0300 &&
|
|
vmode->v_linbpscanline > bpsl)
|
|
return (vmode->v_linbpscanline);
|
|
|
|
/* Return the minimum if the mode table looks absurd. */
|
|
if (vmode->v_bpscanline < bpsl)
|
|
return (bpsl);
|
|
}
|
|
|
|
return (vmode->v_bpscanline);
|
|
}
|
|
|
|
#define VESA_MAXSTR 256
|
|
|
|
#define VESA_STRCPY(dst, src) do { \
|
|
char *str; \
|
|
int i; \
|
|
dst = malloc(VESA_MAXSTR, M_DEVBUF, M_WAITOK); \
|
|
str = x86bios_offset(BIOS_SADDRTOLADDR(src)); \
|
|
for (i = 0; i < VESA_MAXSTR - 1 && str[i] != '\0'; i++) \
|
|
dst[i] = str[i]; \
|
|
dst[i] = '\0'; \
|
|
} while (0)
|
|
|
|
static int
|
|
vesa_bios_init(void)
|
|
{
|
|
struct vesa_mode vmode;
|
|
struct vesa_info *buf;
|
|
video_info_t *p;
|
|
x86regs_t regs;
|
|
size_t bsize;
|
|
size_t msize;
|
|
void *vmbuf;
|
|
uint32_t offs;
|
|
uint16_t vers;
|
|
int is_via_cle266;
|
|
int modes;
|
|
int i;
|
|
|
|
if (vesa_init_done)
|
|
return (0);
|
|
|
|
has_vesa_bios = FALSE;
|
|
vesa_adp_info = NULL;
|
|
vesa_vmode_max = 0;
|
|
vesa_vmode[0].vi_mode = EOT;
|
|
|
|
/*
|
|
* If the VBE real mode interrupt vector is not found, try BIOS POST.
|
|
*/
|
|
if (x86bios_get_intr(0x10) == 0) {
|
|
if (vesa_bios_post() != 0)
|
|
return (1);
|
|
if (bootverbose) {
|
|
offs = x86bios_get_intr(0x10);
|
|
printf("VESA: interrupt vector installed (0x%x)\n",
|
|
BIOS_SADDRTOLADDR(offs));
|
|
}
|
|
}
|
|
|
|
x86bios_init_regs(®s);
|
|
regs.R_AX = 0x4f00;
|
|
|
|
vmbuf = x86bios_alloc(&offs, sizeof(*buf), M_WAITOK);
|
|
|
|
regs.R_ES = X86BIOS_PHYSTOSEG(offs);
|
|
regs.R_DI = X86BIOS_PHYSTOOFF(offs);
|
|
|
|
bcopy("VBE2", vmbuf, 4); /* try for VBE2 data */
|
|
x86bios_intr(®s, 0x10);
|
|
|
|
if (regs.R_AX != 0x004f || bcmp("VESA", vmbuf, 4) != 0)
|
|
goto fail;
|
|
|
|
vesa_adp_info = buf = malloc(sizeof(*buf), M_DEVBUF, M_WAITOK);
|
|
bcopy(vmbuf, buf, sizeof(*buf));
|
|
|
|
if (bootverbose) {
|
|
printf("VESA: information block\n");
|
|
hexdump(buf, sizeof(*buf), NULL, HD_OMIT_CHARS);
|
|
}
|
|
|
|
vers = buf->v_version = le16toh(buf->v_version);
|
|
buf->v_oemstr = le32toh(buf->v_oemstr);
|
|
buf->v_flags = le32toh(buf->v_flags);
|
|
buf->v_modetable = le32toh(buf->v_modetable);
|
|
buf->v_memsize = le16toh(buf->v_memsize);
|
|
buf->v_revision = le16toh(buf->v_revision);
|
|
buf->v_venderstr = le32toh(buf->v_venderstr);
|
|
buf->v_prodstr = le32toh(buf->v_prodstr);
|
|
buf->v_revstr = le32toh(buf->v_revstr);
|
|
|
|
if (vers < 0x0102) {
|
|
printf("VESA: VBE version %d.%d is not supported; "
|
|
"version 1.2 or later is required.\n",
|
|
((vers & 0xf000) >> 12) * 10 + ((vers & 0x0f00) >> 8),
|
|
((vers & 0x00f0) >> 4) * 10 + (vers & 0x000f));
|
|
return (1);
|
|
}
|
|
|
|
VESA_STRCPY(vesa_oemstr, buf->v_oemstr);
|
|
if (vers >= 0x0200) {
|
|
VESA_STRCPY(vesa_venderstr, buf->v_venderstr);
|
|
VESA_STRCPY(vesa_prodstr, buf->v_prodstr);
|
|
VESA_STRCPY(vesa_revstr, buf->v_revstr);
|
|
}
|
|
is_via_cle266 = strncmp(vesa_oemstr, VESA_VIA_CLE266,
|
|
sizeof(VESA_VIA_CLE266)) == 0;
|
|
|
|
if (buf->v_modetable == 0)
|
|
goto fail;
|
|
|
|
msize = (size_t)buf->v_memsize * 64 * 1024;
|
|
|
|
vesa_vmodetab = x86bios_offset(BIOS_SADDRTOLADDR(buf->v_modetable));
|
|
|
|
for (i = 0, modes = 0; (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1)) &&
|
|
(vesa_vmodetab[i] != 0xffff); ++i) {
|
|
vesa_vmodetab[i] = le16toh(vesa_vmodetab[i]);
|
|
if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode, M_WAITOK))
|
|
continue;
|
|
|
|
vmode.v_modeattr = le16toh(vmode.v_modeattr);
|
|
vmode.v_wgran = le16toh(vmode.v_wgran);
|
|
vmode.v_wsize = le16toh(vmode.v_wsize);
|
|
vmode.v_waseg = le16toh(vmode.v_waseg);
|
|
vmode.v_wbseg = le16toh(vmode.v_wbseg);
|
|
vmode.v_posfunc = le32toh(vmode.v_posfunc);
|
|
vmode.v_bpscanline = le16toh(vmode.v_bpscanline);
|
|
vmode.v_width = le16toh(vmode.v_width);
|
|
vmode.v_height = le16toh(vmode.v_height);
|
|
vmode.v_lfb = le32toh(vmode.v_lfb);
|
|
vmode.v_offscreen = le32toh(vmode.v_offscreen);
|
|
vmode.v_offscreensize = le16toh(vmode.v_offscreensize);
|
|
vmode.v_linbpscanline = le16toh(vmode.v_linbpscanline);
|
|
vmode.v_maxpixelclock = le32toh(vmode.v_maxpixelclock);
|
|
|
|
/* reject unsupported modes */
|
|
#if 0
|
|
if ((vmode.v_modeattr &
|
|
(V_MODESUPP | V_MODEOPTINFO | V_MODENONVGA)) !=
|
|
(V_MODESUPP | V_MODEOPTINFO))
|
|
continue;
|
|
#else
|
|
if ((vmode.v_modeattr & V_MODEOPTINFO) == 0) {
|
|
#if VESA_DEBUG > 1
|
|
printf("Rejecting VESA %s mode: %d x %d x %d bpp "
|
|
" attr = %x\n",
|
|
vmode.v_modeattr & V_MODEGRAPHICS ?
|
|
"graphics" : "text",
|
|
vmode.v_width, vmode.v_height, vmode.v_bpp,
|
|
vmode.v_modeattr);
|
|
#endif
|
|
continue;
|
|
}
|
|
#endif
|
|
|
|
bsize = vesa_get_bpscanline(&vmode) * vmode.v_height;
|
|
if ((vmode.v_modeattr & V_MODEGRAPHICS) != 0)
|
|
bsize *= vmode.v_planes;
|
|
|
|
/* Does it have enough memory to support this mode? */
|
|
if (msize < bsize) {
|
|
#if VESA_DEBUG > 1
|
|
printf("Rejecting VESA %s mode: %d x %d x %d bpp "
|
|
" attr = %x, not enough memory\n",
|
|
vmode.v_modeattr & V_MODEGRAPHICS ?
|
|
"graphics" : "text",
|
|
vmode.v_width, vmode.v_height, vmode.v_bpp,
|
|
vmode.v_modeattr);
|
|
#endif
|
|
continue;
|
|
}
|
|
|
|
/* expand the array if necessary */
|
|
if (modes >= vesa_vmode_max) {
|
|
vesa_vmode_max += MODE_TABLE_DELTA;
|
|
p = malloc(sizeof(*vesa_vmode) * (vesa_vmode_max + 1),
|
|
M_DEVBUF, M_WAITOK);
|
|
#if VESA_DEBUG > 1
|
|
printf("vesa_bios_init(): modes:%d, vesa_mode_max:%d\n",
|
|
modes, vesa_vmode_max);
|
|
#endif
|
|
if (modes > 0) {
|
|
bcopy(vesa_vmode, p, sizeof(*vesa_vmode)*modes);
|
|
free(vesa_vmode, M_DEVBUF);
|
|
}
|
|
vesa_vmode = p;
|
|
}
|
|
|
|
#if VESA_DEBUG > 1
|
|
printf("Found VESA %s mode: %d x %d x %d bpp\n",
|
|
vmode.v_modeattr & V_MODEGRAPHICS ? "graphics" : "text",
|
|
vmode.v_width, vmode.v_height, vmode.v_bpp);
|
|
#endif
|
|
if (is_via_cle266) {
|
|
if ((vmode.v_width & 0xff00) >> 8 == vmode.v_height - 1) {
|
|
vmode.v_width &= 0xff;
|
|
vmode.v_waseg = 0xb8000 >> 4;
|
|
}
|
|
}
|
|
|
|
/* copy some fields */
|
|
bzero(&vesa_vmode[modes], sizeof(vesa_vmode[modes]));
|
|
vesa_vmode[modes].vi_mode = vesa_vmodetab[i];
|
|
vesa_vmode[modes].vi_width = vmode.v_width;
|
|
vesa_vmode[modes].vi_height = vmode.v_height;
|
|
vesa_vmode[modes].vi_depth = vmode.v_bpp;
|
|
vesa_vmode[modes].vi_planes = vmode.v_planes;
|
|
vesa_vmode[modes].vi_cwidth = vmode.v_cwidth;
|
|
vesa_vmode[modes].vi_cheight = vmode.v_cheight;
|
|
vesa_vmode[modes].vi_window = (vm_offset_t)vmode.v_waseg << 4;
|
|
/* XXX window B */
|
|
vesa_vmode[modes].vi_window_size = vmode.v_wsize * 1024;
|
|
vesa_vmode[modes].vi_window_gran = vmode.v_wgran * 1024;
|
|
if (vmode.v_modeattr & V_MODELFB)
|
|
vesa_vmode[modes].vi_buffer = vmode.v_lfb;
|
|
vesa_vmode[modes].vi_buffer_size = bsize;
|
|
vesa_vmode[modes].vi_mem_model =
|
|
vesa_translate_mmodel(vmode.v_memmodel);
|
|
switch (vesa_vmode[modes].vi_mem_model) {
|
|
case V_INFO_MM_DIRECT:
|
|
if ((vmode.v_modeattr & V_MODELFB) != 0 &&
|
|
vers >= 0x0300) {
|
|
vesa_vmode[modes].vi_pixel_fields[0] =
|
|
vmode.v_linredfieldpos;
|
|
vesa_vmode[modes].vi_pixel_fields[1] =
|
|
vmode.v_lingreenfieldpos;
|
|
vesa_vmode[modes].vi_pixel_fields[2] =
|
|
vmode.v_linbluefieldpos;
|
|
vesa_vmode[modes].vi_pixel_fields[3] =
|
|
vmode.v_linresfieldpos;
|
|
vesa_vmode[modes].vi_pixel_fsizes[0] =
|
|
vmode.v_linredmasksize;
|
|
vesa_vmode[modes].vi_pixel_fsizes[1] =
|
|
vmode.v_lingreenmasksize;
|
|
vesa_vmode[modes].vi_pixel_fsizes[2] =
|
|
vmode.v_linbluemasksize;
|
|
vesa_vmode[modes].vi_pixel_fsizes[3] =
|
|
vmode.v_linresmasksize;
|
|
} else {
|
|
vesa_vmode[modes].vi_pixel_fields[0] =
|
|
vmode.v_redfieldpos;
|
|
vesa_vmode[modes].vi_pixel_fields[1] =
|
|
vmode.v_greenfieldpos;
|
|
vesa_vmode[modes].vi_pixel_fields[2] =
|
|
vmode.v_bluefieldpos;
|
|
vesa_vmode[modes].vi_pixel_fields[3] =
|
|
vmode.v_resfieldpos;
|
|
vesa_vmode[modes].vi_pixel_fsizes[0] =
|
|
vmode.v_redmasksize;
|
|
vesa_vmode[modes].vi_pixel_fsizes[1] =
|
|
vmode.v_greenmasksize;
|
|
vesa_vmode[modes].vi_pixel_fsizes[2] =
|
|
vmode.v_bluemasksize;
|
|
vesa_vmode[modes].vi_pixel_fsizes[3] =
|
|
vmode.v_resmasksize;
|
|
}
|
|
/* FALLTHROUGH */
|
|
case V_INFO_MM_PACKED:
|
|
vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7) / 8;
|
|
break;
|
|
}
|
|
vesa_vmode[modes].vi_flags =
|
|
vesa_translate_flags(vmode.v_modeattr) | V_INFO_VESA;
|
|
|
|
++modes;
|
|
}
|
|
vesa_vmode[modes].vi_mode = EOT;
|
|
|
|
if (bootverbose)
|
|
printf("VESA: %d mode(s) found\n", modes);
|
|
|
|
has_vesa_bios = (modes > 0);
|
|
if (!has_vesa_bios)
|
|
goto fail;
|
|
|
|
x86bios_free(vmbuf, sizeof(*buf));
|
|
return (0);
|
|
|
|
fail:
|
|
if (vmbuf != NULL)
|
|
x86bios_free(vmbuf, sizeof(buf));
|
|
if (vesa_adp_info != NULL) {
|
|
free(vesa_adp_info, M_DEVBUF);
|
|
vesa_adp_info = NULL;
|
|
}
|
|
if (vesa_oemstr != NULL) {
|
|
free(vesa_oemstr, M_DEVBUF);
|
|
vesa_oemstr = NULL;
|
|
}
|
|
if (vesa_venderstr != NULL) {
|
|
free(vesa_venderstr, M_DEVBUF);
|
|
vesa_venderstr = NULL;
|
|
}
|
|
if (vesa_prodstr != NULL) {
|
|
free(vesa_prodstr, M_DEVBUF);
|
|
vesa_prodstr = NULL;
|
|
}
|
|
if (vesa_revstr != NULL) {
|
|
free(vesa_revstr, M_DEVBUF);
|
|
vesa_revstr = NULL;
|
|
}
|
|
return (1);
|
|
}
|
|
|
|
static void
|
|
vesa_clear_modes(video_info_t *info, int color)
|
|
{
|
|
while (info->vi_mode != EOT) {
|
|
if ((info->vi_flags & V_INFO_COLOR) != color)
|
|
info->vi_mode = NA;
|
|
++info;
|
|
}
|
|
}
|
|
|
|
/* entry points */
|
|
|
|
static int
|
|
vesa_configure(int flags)
|
|
{
|
|
video_adapter_t *adp;
|
|
int adapters;
|
|
int error;
|
|
int i;
|
|
|
|
if (vesa_init_done)
|
|
return (0);
|
|
if (flags & VIO_PROBE_ONLY)
|
|
return (0);
|
|
|
|
/*
|
|
* If the VESA module has already been loaded, abort loading
|
|
* the module this time.
|
|
*/
|
|
for (i = 0; (adp = vid_get_adapter(i)) != NULL; ++i) {
|
|
if (adp->va_flags & V_ADP_VESA)
|
|
return (ENXIO);
|
|
if (adp->va_type == KD_VGA)
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* The VGA adapter is not found. This is because either
|
|
* 1) the VGA driver has not been initialized, or 2) the VGA card
|
|
* is not present. If 1) is the case, we shall defer
|
|
* initialization for now and try again later.
|
|
*/
|
|
if (adp == NULL) {
|
|
vga_sub_configure = vesa_configure;
|
|
return (ENODEV);
|
|
}
|
|
|
|
/* count number of registered adapters */
|
|
for (++i; vid_get_adapter(i) != NULL; ++i)
|
|
;
|
|
adapters = i;
|
|
|
|
/* call VESA BIOS */
|
|
vesa_adp = adp;
|
|
if (vesa_bios_init()) {
|
|
vesa_adp = NULL;
|
|
return (ENXIO);
|
|
}
|
|
vesa_adp->va_flags |= V_ADP_VESA;
|
|
|
|
/* remove conflicting modes if we have more than one adapter */
|
|
if (adapters > 1) {
|
|
vesa_clear_modes(vesa_vmode,
|
|
(vesa_adp->va_flags & V_ADP_COLOR) ?
|
|
V_INFO_COLOR : 0);
|
|
}
|
|
|
|
if ((error = vesa_load_ioctl()) == 0) {
|
|
prevvidsw = vidsw[vesa_adp->va_index];
|
|
vidsw[vesa_adp->va_index] = &vesavidsw;
|
|
vesa_init_done = TRUE;
|
|
} else {
|
|
vesa_adp = NULL;
|
|
return (error);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
#if 0
|
|
static int
|
|
vesa_nop(void)
|
|
{
|
|
|
|
return (0);
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
vesa_error(void)
|
|
{
|
|
|
|
return (1);
|
|
}
|
|
|
|
static int
|
|
vesa_probe(int unit, video_adapter_t **adpp, void *arg, int flags)
|
|
{
|
|
|
|
return ((*prevvidsw->probe)(unit, adpp, arg, flags));
|
|
}
|
|
|
|
static int
|
|
vesa_init(int unit, video_adapter_t *adp, int flags)
|
|
{
|
|
|
|
return ((*prevvidsw->init)(unit, adp, flags));
|
|
}
|
|
|
|
static int
|
|
vesa_get_info(video_adapter_t *adp, int mode, video_info_t *info)
|
|
{
|
|
int i;
|
|
|
|
if ((*prevvidsw->get_info)(adp, mode, info) == 0)
|
|
return (0);
|
|
|
|
if (adp != vesa_adp)
|
|
return (1);
|
|
|
|
mode = vesa_map_gen_mode_num(vesa_adp->va_type,
|
|
vesa_adp->va_flags & V_ADP_COLOR, mode);
|
|
for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) {
|
|
if (vesa_vmode[i].vi_mode == NA)
|
|
continue;
|
|
if (vesa_vmode[i].vi_mode == mode) {
|
|
*info = vesa_vmode[i];
|
|
return (0);
|
|
}
|
|
}
|
|
return (1);
|
|
}
|
|
|
|
static int
|
|
vesa_query_mode(video_adapter_t *adp, video_info_t *info)
|
|
{
|
|
int i;
|
|
|
|
if ((*prevvidsw->query_mode)(adp, info) == 0)
|
|
return (0);
|
|
if (adp != vesa_adp)
|
|
return (ENODEV);
|
|
|
|
for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) {
|
|
if ((info->vi_width != 0)
|
|
&& (info->vi_width != vesa_vmode[i].vi_width))
|
|
continue;
|
|
if ((info->vi_height != 0)
|
|
&& (info->vi_height != vesa_vmode[i].vi_height))
|
|
continue;
|
|
if ((info->vi_cwidth != 0)
|
|
&& (info->vi_cwidth != vesa_vmode[i].vi_cwidth))
|
|
continue;
|
|
if ((info->vi_cheight != 0)
|
|
&& (info->vi_cheight != vesa_vmode[i].vi_cheight))
|
|
continue;
|
|
if ((info->vi_depth != 0)
|
|
&& (info->vi_depth != vesa_vmode[i].vi_depth))
|
|
continue;
|
|
if ((info->vi_planes != 0)
|
|
&& (info->vi_planes != vesa_vmode[i].vi_planes))
|
|
continue;
|
|
/* pixel format, memory model */
|
|
if ((info->vi_flags != 0)
|
|
&& (info->vi_flags != vesa_vmode[i].vi_flags))
|
|
continue;
|
|
*info = vesa_vmode[i];
|
|
return (0);
|
|
}
|
|
return (ENODEV);
|
|
}
|
|
|
|
static int
|
|
vesa_set_mode(video_adapter_t *adp, int mode)
|
|
{
|
|
video_info_t info;
|
|
|
|
if (adp != vesa_adp)
|
|
return ((*prevvidsw->set_mode)(adp, mode));
|
|
|
|
mode = vesa_map_gen_mode_num(adp->va_type,
|
|
adp->va_flags & V_ADP_COLOR, mode);
|
|
#if VESA_DEBUG > 0
|
|
printf("VESA: set_mode(): %d(%x) -> %d(%x)\n",
|
|
adp->va_mode, adp->va_mode, mode, mode);
|
|
#endif
|
|
/*
|
|
* If the current mode is a VESA mode and the new mode is not,
|
|
* restore the state of the adapter first by setting one of the
|
|
* standard VGA mode, so that non-standard, extended SVGA registers
|
|
* are set to the state compatible with the standard VGA modes.
|
|
* Otherwise (*prevvidsw->set_mode)() may not be able to set up
|
|
* the new mode correctly.
|
|
*/
|
|
if (VESA_MODE(adp->va_mode)) {
|
|
if (!VESA_MODE(mode) &&
|
|
(*prevvidsw->get_info)(adp, mode, &info) == 0) {
|
|
if ((adp->va_flags & V_ADP_DAC8) != 0) {
|
|
vesa_bios_set_dac(6);
|
|
adp->va_flags &= ~V_ADP_DAC8;
|
|
}
|
|
int10_set_mode(adp->va_initial_bios_mode);
|
|
if (adp->va_info.vi_flags & V_INFO_LINEAR)
|
|
pmap_unmapdev(adp->va_buffer,
|
|
vesa_adp_info->v_memsize * 64 * 1024);
|
|
/*
|
|
* Once (*prevvidsw->get_info)() succeeded,
|
|
* (*prevvidsw->set_mode)() below won't fail...
|
|
*/
|
|
}
|
|
}
|
|
|
|
/* we may not need to handle this mode after all... */
|
|
if (!VESA_MODE(mode) && (*prevvidsw->set_mode)(adp, mode) == 0)
|
|
return (0);
|
|
|
|
/* is the new mode supported? */
|
|
if (vesa_get_info(adp, mode, &info))
|
|
return (1);
|
|
/* assert(VESA_MODE(mode)); */
|
|
|
|
#if VESA_DEBUG > 0
|
|
printf("VESA: about to set a VESA mode...\n");
|
|
#endif
|
|
/* don't use the linear frame buffer for text modes. XXX */
|
|
if (!(info.vi_flags & V_INFO_GRAPHICS))
|
|
info.vi_flags &= ~V_INFO_LINEAR;
|
|
|
|
if (vesa_bios_set_mode(mode | ((info.vi_flags & V_INFO_LINEAR) ? 0x4000 : 0)))
|
|
return (1);
|
|
|
|
/* Palette format is reset by the above VBE function call. */
|
|
adp->va_flags &= ~V_ADP_DAC8;
|
|
|
|
if ((vesa_adp_info->v_flags & V_DAC8) != 0 &&
|
|
(info.vi_flags & V_INFO_GRAPHICS) != 0 &&
|
|
vesa_bios_set_dac(8) > 6)
|
|
adp->va_flags |= V_ADP_DAC8;
|
|
|
|
if (adp->va_info.vi_flags & V_INFO_LINEAR)
|
|
pmap_unmapdev(adp->va_buffer,
|
|
vesa_adp_info->v_memsize * 64 * 1024);
|
|
|
|
#if VESA_DEBUG > 0
|
|
printf("VESA: mode set!\n");
|
|
#endif
|
|
vesa_adp->va_mode = mode;
|
|
vesa_adp->va_flags &= ~V_ADP_COLOR;
|
|
vesa_adp->va_flags |=
|
|
(info.vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0;
|
|
vesa_adp->va_crtc_addr =
|
|
(vesa_adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC;
|
|
|
|
vesa_adp->va_line_width = info.vi_buffer_size / info.vi_height;
|
|
if ((info.vi_flags & V_INFO_GRAPHICS) != 0)
|
|
vesa_adp->va_line_width /= info.vi_planes;
|
|
|
|
#ifdef MODE_TABLE_BROKEN
|
|
/* If VBE function returns bigger bytes per scan line, use it. */
|
|
{
|
|
int bpsl = vesa_bios_get_line_length();
|
|
if (bpsl > vesa_adp->va_line_width) {
|
|
vesa_adp->va_line_width = bpsl;
|
|
info.vi_buffer_size = bpsl * info.vi_height;
|
|
if ((info.vi_flags & V_INFO_GRAPHICS) != 0)
|
|
info.vi_buffer_size *= info.vi_planes;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (info.vi_flags & V_INFO_LINEAR) {
|
|
#if VESA_DEBUG > 1
|
|
printf("VESA: setting up LFB\n");
|
|
#endif
|
|
vesa_adp->va_buffer =
|
|
(vm_offset_t)pmap_mapdev_attr(info.vi_buffer,
|
|
vesa_adp_info->v_memsize * 64 * 1024, PAT_WRITE_COMBINING);
|
|
vesa_adp->va_window = vesa_adp->va_buffer;
|
|
vesa_adp->va_window_size = info.vi_buffer_size / info.vi_planes;
|
|
vesa_adp->va_window_gran = info.vi_buffer_size / info.vi_planes;
|
|
} else {
|
|
vesa_adp->va_buffer = 0;
|
|
vesa_adp->va_window = (vm_offset_t)x86bios_offset(info.vi_window);
|
|
vesa_adp->va_window_size = info.vi_window_size;
|
|
vesa_adp->va_window_gran = info.vi_window_gran;
|
|
}
|
|
vesa_adp->va_buffer_size = info.vi_buffer_size;
|
|
vesa_adp->va_window_orig = 0;
|
|
vesa_adp->va_disp_start.x = 0;
|
|
vesa_adp->va_disp_start.y = 0;
|
|
#if VESA_DEBUG > 0
|
|
printf("vesa_set_mode(): vi_width:%d, line_width:%d\n",
|
|
info.vi_width, vesa_adp->va_line_width);
|
|
#endif
|
|
bcopy(&info, &vesa_adp->va_info, sizeof(vesa_adp->va_info));
|
|
|
|
/* move hardware cursor out of the way */
|
|
(*vidsw[vesa_adp->va_index]->set_hw_cursor)(vesa_adp, -1, -1);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
vesa_save_font(video_adapter_t *adp, int page, int fontsize, int fontwidth,
|
|
u_char *data, int ch, int count)
|
|
{
|
|
|
|
return ((*prevvidsw->save_font)(adp, page, fontsize, fontwidth, data,
|
|
ch, count));
|
|
}
|
|
|
|
static int
|
|
vesa_load_font(video_adapter_t *adp, int page, int fontsize, int fontwidth,
|
|
u_char *data, int ch, int count)
|
|
{
|
|
|
|
return ((*prevvidsw->load_font)(adp, page, fontsize, fontwidth, data,
|
|
ch, count));
|
|
}
|
|
|
|
static int
|
|
vesa_show_font(video_adapter_t *adp, int page)
|
|
{
|
|
|
|
return ((*prevvidsw->show_font)(adp, page));
|
|
}
|
|
|
|
static int
|
|
vesa_save_palette(video_adapter_t *adp, u_char *palette)
|
|
{
|
|
int bits;
|
|
|
|
if (adp == vesa_adp && VESA_MODE(adp->va_mode)) {
|
|
bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6;
|
|
if (vesa_bios_save_palette(0, 256, palette, bits) == 0)
|
|
return (0);
|
|
}
|
|
|
|
return ((*prevvidsw->save_palette)(adp, palette));
|
|
}
|
|
|
|
static int
|
|
vesa_load_palette(video_adapter_t *adp, u_char *palette)
|
|
{
|
|
int bits;
|
|
|
|
if (adp == vesa_adp && VESA_MODE(adp->va_mode)) {
|
|
bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6;
|
|
if (vesa_bios_load_palette(0, 256, palette, bits) == 0)
|
|
return (0);
|
|
}
|
|
|
|
return ((*prevvidsw->load_palette)(adp, palette));
|
|
}
|
|
|
|
static int
|
|
vesa_set_border(video_adapter_t *adp, int color)
|
|
{
|
|
|
|
return ((*prevvidsw->set_border)(adp, color));
|
|
}
|
|
|
|
static int
|
|
vesa_save_state(video_adapter_t *adp, void *p, size_t size)
|
|
{
|
|
|
|
if (adp != vesa_adp)
|
|
return ((*prevvidsw->save_state)(adp, p, size));
|
|
|
|
if (vesa_state_buf_size == -1) {
|
|
vesa_state_buf_size = vesa_bios_state_buf_size();
|
|
if (vesa_state_buf_size == 0)
|
|
return (1);
|
|
}
|
|
if (size == 0)
|
|
return (offsetof(adp_state_t, regs) + vesa_state_buf_size);
|
|
else if (size < (offsetof(adp_state_t, regs) + vesa_state_buf_size))
|
|
return (1);
|
|
|
|
((adp_state_t *)p)->sig = V_STATE_SIG;
|
|
bzero(((adp_state_t *)p)->regs, vesa_state_buf_size);
|
|
return (vesa_bios_save_restore(STATE_SAVE, ((adp_state_t *)p)->regs,
|
|
vesa_state_buf_size));
|
|
}
|
|
|
|
static int
|
|
vesa_load_state(video_adapter_t *adp, void *p)
|
|
{
|
|
|
|
if ((adp != vesa_adp) || (((adp_state_t *)p)->sig != V_STATE_SIG))
|
|
return ((*prevvidsw->load_state)(adp, p));
|
|
|
|
if (vesa_state_buf_size <= 0)
|
|
return (1);
|
|
|
|
/* Try BIOS POST to restore a sane state. */
|
|
(void)vesa_bios_post();
|
|
(void)int10_set_mode(adp->va_initial_bios_mode);
|
|
(void)vesa_set_mode(adp, adp->va_mode);
|
|
|
|
return (vesa_bios_save_restore(STATE_LOAD, ((adp_state_t *)p)->regs,
|
|
vesa_state_buf_size));
|
|
}
|
|
|
|
#if 0
|
|
static int
|
|
vesa_get_origin(video_adapter_t *adp, off_t *offset)
|
|
{
|
|
x86regs_t regs;
|
|
|
|
x86bios_init_regs(®s);
|
|
regs.R_AX = 0x4f05;
|
|
regs.R_BL = 0x10;
|
|
|
|
x86bios_intr(®s, 0x10);
|
|
|
|
if (regs.R_AX != 0x004f)
|
|
return (1);
|
|
*offset = regs.DX * adp->va_window_gran;
|
|
|
|
return (0);
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
vesa_set_origin(video_adapter_t *adp, off_t offset)
|
|
{
|
|
x86regs_t regs;
|
|
|
|
/*
|
|
* This function should return as quickly as possible to
|
|
* maintain good performance of the system. For this reason,
|
|
* error checking is kept minimal and let the VESA BIOS to
|
|
* detect error.
|
|
*/
|
|
if (adp != vesa_adp)
|
|
return ((*prevvidsw->set_win_org)(adp, offset));
|
|
|
|
/* if this is a linear frame buffer, do nothing */
|
|
if (adp->va_info.vi_flags & V_INFO_LINEAR)
|
|
return (0);
|
|
/* XXX */
|
|
if (adp->va_window_gran == 0)
|
|
return (1);
|
|
|
|
x86bios_init_regs(®s);
|
|
regs.R_AX = 0x4f05;
|
|
regs.R_DX = offset / adp->va_window_gran;
|
|
|
|
x86bios_intr(®s, 0x10);
|
|
|
|
if (regs.R_AX != 0x004f)
|
|
return (1);
|
|
|
|
x86bios_init_regs(®s);
|
|
regs.R_AX = 0x4f05;
|
|
regs.R_BL = 1;
|
|
regs.R_DX = offset / adp->va_window_gran;
|
|
x86bios_intr(®s, 0x10);
|
|
|
|
adp->va_window_orig = (offset/adp->va_window_gran)*adp->va_window_gran;
|
|
return (0); /* XXX */
|
|
}
|
|
|
|
static int
|
|
vesa_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
|
|
{
|
|
|
|
return ((*prevvidsw->read_hw_cursor)(adp, col, row));
|
|
}
|
|
|
|
static int
|
|
vesa_set_hw_cursor(video_adapter_t *adp, int col, int row)
|
|
{
|
|
|
|
return ((*prevvidsw->set_hw_cursor)(adp, col, row));
|
|
}
|
|
|
|
static int
|
|
vesa_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
|
|
int celsize, int blink)
|
|
{
|
|
|
|
return ((*prevvidsw->set_hw_cursor_shape)(adp, base, height, celsize,
|
|
blink));
|
|
}
|
|
|
|
static int
|
|
vesa_blank_display(video_adapter_t *adp, int mode)
|
|
{
|
|
|
|
/* XXX: use VESA DPMS */
|
|
return ((*prevvidsw->blank_display)(adp, mode));
|
|
}
|
|
|
|
static int
|
|
vesa_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
|
|
int prot, vm_memattr_t *memattr)
|
|
{
|
|
|
|
#if VESA_DEBUG > 0
|
|
printf("vesa_mmap(): window:0x%tx, buffer:0x%tx, offset:0x%jx\n",
|
|
adp->va_info.vi_window, adp->va_info.vi_buffer, offset);
|
|
#endif
|
|
|
|
if ((adp == vesa_adp) &&
|
|
(adp->va_info.vi_flags & V_INFO_LINEAR) != 0) {
|
|
/* va_window_size == va_buffer_size/vi_planes */
|
|
/* XXX: is this correct? */
|
|
if (offset > adp->va_window_size - PAGE_SIZE)
|
|
return (-1);
|
|
*paddr = adp->va_info.vi_buffer + offset;
|
|
return (0);
|
|
}
|
|
return ((*prevvidsw->mmap)(adp, offset, paddr, prot, memattr));
|
|
}
|
|
|
|
static int
|
|
vesa_clear(video_adapter_t *adp)
|
|
{
|
|
|
|
return ((*prevvidsw->clear)(adp));
|
|
}
|
|
|
|
static int
|
|
vesa_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
|
|
{
|
|
|
|
return ((*prevvidsw->fill_rect)(adp, val, x, y, cx, cy));
|
|
}
|
|
|
|
static int
|
|
vesa_bitblt(video_adapter_t *adp,...)
|
|
{
|
|
|
|
/* FIXME */
|
|
return (1);
|
|
}
|
|
|
|
static int
|
|
get_palette(video_adapter_t *adp, int base, int count,
|
|
u_char *red, u_char *green, u_char *blue, u_char *trans)
|
|
{
|
|
u_char *r;
|
|
u_char *g;
|
|
u_char *b;
|
|
int bits;
|
|
int error;
|
|
|
|
if (base < 0 || base >= 256 || count < 0 || count > 256)
|
|
return (1);
|
|
if ((base + count) > 256)
|
|
return (1);
|
|
if (!VESA_MODE(adp->va_mode))
|
|
return (1);
|
|
|
|
bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6;
|
|
r = malloc(count * 3, M_DEVBUF, M_WAITOK);
|
|
g = r + count;
|
|
b = g + count;
|
|
error = vesa_bios_save_palette2(base, count, r, g, b, bits);
|
|
if (error == 0) {
|
|
copyout(r, red, count);
|
|
copyout(g, green, count);
|
|
copyout(b, blue, count);
|
|
if (trans != NULL) {
|
|
bzero(r, count);
|
|
copyout(r, trans, count);
|
|
}
|
|
}
|
|
free(r, M_DEVBUF);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
set_palette(video_adapter_t *adp, int base, int count,
|
|
u_char *red, u_char *green, u_char *blue, u_char *trans)
|
|
{
|
|
u_char *r;
|
|
u_char *g;
|
|
u_char *b;
|
|
int bits;
|
|
int error;
|
|
|
|
if (base < 0 || base >= 256 || count < 0 || count > 256)
|
|
return (1);
|
|
if ((base + count) > 256)
|
|
return (1);
|
|
if (!VESA_MODE(adp->va_mode))
|
|
return (1);
|
|
|
|
bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6;
|
|
r = malloc(count * 3, M_DEVBUF, M_WAITOK);
|
|
g = r + count;
|
|
b = g + count;
|
|
copyin(red, r, count);
|
|
copyin(green, g, count);
|
|
copyin(blue, b, count);
|
|
|
|
error = vesa_bios_load_palette2(base, count, r, g, b, bits);
|
|
free(r, M_DEVBUF);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
vesa_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg)
|
|
{
|
|
int bytes;
|
|
|
|
if (adp != vesa_adp)
|
|
return ((*prevvidsw->ioctl)(adp, cmd, arg));
|
|
|
|
switch (cmd) {
|
|
case FBIO_SETWINORG: /* set frame buffer window origin */
|
|
if (!VESA_MODE(adp->va_mode))
|
|
return (*prevvidsw->ioctl)(adp, cmd, arg);
|
|
return (vesa_set_origin(adp, *(off_t *)arg) ? ENODEV : 0);
|
|
|
|
case FBIO_SETDISPSTART: /* set display start address */
|
|
if (!VESA_MODE(adp->va_mode))
|
|
return ((*prevvidsw->ioctl)(adp, cmd, arg));
|
|
if (vesa_bios_set_start(((video_display_start_t *)arg)->x,
|
|
((video_display_start_t *)arg)->y))
|
|
return (ENODEV);
|
|
adp->va_disp_start.x = ((video_display_start_t *)arg)->x;
|
|
adp->va_disp_start.y = ((video_display_start_t *)arg)->y;
|
|
return (0);
|
|
|
|
case FBIO_SETLINEWIDTH: /* set line length in pixel */
|
|
if (!VESA_MODE(adp->va_mode))
|
|
return ((*prevvidsw->ioctl)(adp, cmd, arg));
|
|
if (vesa_bios_set_line_length(*(u_int *)arg, &bytes, NULL))
|
|
return (ENODEV);
|
|
adp->va_line_width = bytes;
|
|
#if VESA_DEBUG > 1
|
|
printf("new line width:%d\n", adp->va_line_width);
|
|
#endif
|
|
return (0);
|
|
|
|
case FBIO_GETPALETTE: /* get color palette */
|
|
if (get_palette(adp, ((video_color_palette_t *)arg)->index,
|
|
((video_color_palette_t *)arg)->count,
|
|
((video_color_palette_t *)arg)->red,
|
|
((video_color_palette_t *)arg)->green,
|
|
((video_color_palette_t *)arg)->blue,
|
|
((video_color_palette_t *)arg)->transparent))
|
|
return ((*prevvidsw->ioctl)(adp, cmd, arg));
|
|
return (0);
|
|
|
|
|
|
case FBIO_SETPALETTE: /* set color palette */
|
|
if (set_palette(adp, ((video_color_palette_t *)arg)->index,
|
|
((video_color_palette_t *)arg)->count,
|
|
((video_color_palette_t *)arg)->red,
|
|
((video_color_palette_t *)arg)->green,
|
|
((video_color_palette_t *)arg)->blue,
|
|
((video_color_palette_t *)arg)->transparent))
|
|
return ((*prevvidsw->ioctl)(adp, cmd, arg));
|
|
return (0);
|
|
|
|
case FBIOGETCMAP: /* get color palette */
|
|
if (get_palette(adp, ((struct fbcmap *)arg)->index,
|
|
((struct fbcmap *)arg)->count,
|
|
((struct fbcmap *)arg)->red,
|
|
((struct fbcmap *)arg)->green,
|
|
((struct fbcmap *)arg)->blue, NULL))
|
|
return ((*prevvidsw->ioctl)(adp, cmd, arg));
|
|
return (0);
|
|
|
|
case FBIOPUTCMAP: /* set color palette */
|
|
if (set_palette(adp, ((struct fbcmap *)arg)->index,
|
|
((struct fbcmap *)arg)->count,
|
|
((struct fbcmap *)arg)->red,
|
|
((struct fbcmap *)arg)->green,
|
|
((struct fbcmap *)arg)->blue, NULL))
|
|
return ((*prevvidsw->ioctl)(adp, cmd, arg));
|
|
return (0);
|
|
|
|
default:
|
|
return ((*prevvidsw->ioctl)(adp, cmd, arg));
|
|
}
|
|
}
|
|
|
|
static int
|
|
vesa_diag(video_adapter_t *adp, int level)
|
|
{
|
|
int error;
|
|
|
|
/* call the previous handler first */
|
|
error = (*prevvidsw->diag)(adp, level);
|
|
if (error)
|
|
return (error);
|
|
|
|
if (adp != vesa_adp)
|
|
return (1);
|
|
|
|
if (level <= 0)
|
|
return (0);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
vesa_bios_info(int level)
|
|
{
|
|
#if VESA_DEBUG > 1
|
|
struct vesa_mode vmode;
|
|
int i;
|
|
#endif
|
|
uint16_t vers;
|
|
|
|
vers = vesa_adp_info->v_version;
|
|
|
|
if (bootverbose) {
|
|
/* general adapter information */
|
|
printf(
|
|
"VESA: v%d.%d, %dk memory, flags:0x%x, mode table:%p (%x)\n",
|
|
(vers >> 12) * 10 + ((vers & 0x0f00) >> 8),
|
|
((vers & 0x00f0) >> 4) * 10 + (vers & 0x000f),
|
|
vesa_adp_info->v_memsize * 64, vesa_adp_info->v_flags,
|
|
vesa_vmodetab, vesa_adp_info->v_modetable);
|
|
|
|
/* OEM string */
|
|
if (vesa_oemstr != NULL)
|
|
printf("VESA: %s\n", vesa_oemstr);
|
|
}
|
|
|
|
if (level <= 0)
|
|
return (0);
|
|
|
|
if (vers >= 0x0200 && bootverbose) {
|
|
/* vender name, product name, product revision */
|
|
printf("VESA: %s %s %s\n",
|
|
(vesa_venderstr != NULL) ? vesa_venderstr : "unknown",
|
|
(vesa_prodstr != NULL) ? vesa_prodstr : "unknown",
|
|
(vesa_revstr != NULL) ? vesa_revstr : "?");
|
|
}
|
|
|
|
#if VESA_DEBUG > 1
|
|
/* mode information */
|
|
for (i = 0;
|
|
(i < (M_VESA_MODE_MAX - M_VESA_BASE + 1))
|
|
&& (vesa_vmodetab[i] != 0xffff); ++i) {
|
|
if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode, M_NOWAIT))
|
|
continue;
|
|
|
|
/* print something for diagnostic purpose */
|
|
printf("VESA: mode:0x%03x, flags:0x%04x",
|
|
vesa_vmodetab[i], vmode.v_modeattr);
|
|
if (vmode.v_modeattr & V_MODEOPTINFO) {
|
|
if (vmode.v_modeattr & V_MODEGRAPHICS) {
|
|
printf(", G %dx%dx%d %d, ",
|
|
vmode.v_width, vmode.v_height,
|
|
vmode.v_bpp, vmode.v_planes);
|
|
} else {
|
|
printf(", T %dx%d, ",
|
|
vmode.v_width, vmode.v_height);
|
|
}
|
|
printf("font:%dx%d, ",
|
|
vmode.v_cwidth, vmode.v_cheight);
|
|
printf("pages:%d, mem:%d",
|
|
vmode.v_ipages + 1, vmode.v_memmodel);
|
|
}
|
|
if (vmode.v_modeattr & V_MODELFB) {
|
|
printf("\nVESA: LFB:0x%x, off:0x%x, off_size:0x%x",
|
|
vmode.v_lfb, vmode.v_offscreen,
|
|
vmode.v_offscreensize*1024);
|
|
}
|
|
printf("\n");
|
|
printf("VESA: window A:0x%x (%x), window B:0x%x (%x), ",
|
|
vmode.v_waseg, vmode.v_waattr,
|
|
vmode.v_wbseg, vmode.v_wbattr);
|
|
printf("size:%dk, gran:%dk\n",
|
|
vmode.v_wsize, vmode.v_wgran);
|
|
}
|
|
#endif /* VESA_DEBUG > 1 */
|
|
|
|
return (0);
|
|
}
|
|
|
|
/* module loading */
|
|
|
|
static int
|
|
vesa_load(void)
|
|
{
|
|
int error;
|
|
int s;
|
|
|
|
if (vesa_init_done)
|
|
return (0);
|
|
|
|
/* locate a VGA adapter */
|
|
s = spltty();
|
|
vesa_adp = NULL;
|
|
error = vesa_configure(0);
|
|
splx(s);
|
|
|
|
if (error == 0)
|
|
vesa_bios_info(bootverbose);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
vesa_unload(void)
|
|
{
|
|
u_char palette[256*3];
|
|
int error;
|
|
int s;
|
|
|
|
/* if the adapter is currently in a VESA mode, don't unload */
|
|
if ((vesa_adp != NULL) && VESA_MODE(vesa_adp->va_mode))
|
|
return (EBUSY);
|
|
/*
|
|
* FIXME: if there is at least one vty which is in a VESA mode,
|
|
* we shouldn't be unloading! XXX
|
|
*/
|
|
|
|
s = spltty();
|
|
if ((error = vesa_unload_ioctl()) == 0) {
|
|
if (vesa_adp != NULL) {
|
|
if ((vesa_adp->va_flags & V_ADP_DAC8) != 0) {
|
|
vesa_bios_save_palette(0, 256, palette, 8);
|
|
vesa_bios_set_dac(6);
|
|
vesa_adp->va_flags &= ~V_ADP_DAC8;
|
|
vesa_bios_load_palette(0, 256, palette, 6);
|
|
}
|
|
vesa_adp->va_flags &= ~V_ADP_VESA;
|
|
vidsw[vesa_adp->va_index] = prevvidsw;
|
|
}
|
|
}
|
|
splx(s);
|
|
|
|
if (vesa_adp_info != NULL)
|
|
free(vesa_adp_info, M_DEVBUF);
|
|
if (vesa_oemstr != NULL)
|
|
free(vesa_oemstr, M_DEVBUF);
|
|
if (vesa_venderstr != NULL)
|
|
free(vesa_venderstr, M_DEVBUF);
|
|
if (vesa_prodstr != NULL)
|
|
free(vesa_prodstr, M_DEVBUF);
|
|
if (vesa_revstr != NULL)
|
|
free(vesa_revstr, M_DEVBUF);
|
|
if (vesa_vmode != &vesa_vmode_empty)
|
|
free(vesa_vmode, M_DEVBUF);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
vesa_mod_event(module_t mod, int type, void *data)
|
|
{
|
|
|
|
switch (type) {
|
|
case MOD_LOAD:
|
|
return (vesa_load());
|
|
case MOD_UNLOAD:
|
|
return (vesa_unload());
|
|
}
|
|
return (EOPNOTSUPP);
|
|
}
|
|
|
|
static moduledata_t vesa_mod = {
|
|
"vesa",
|
|
vesa_mod_event,
|
|
NULL,
|
|
};
|
|
|
|
DECLARE_MODULE(vesa, vesa_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
|
|
MODULE_DEPEND(vesa, x86bios, 1, 1, 1);
|
|
|
|
#endif /* VGA_NO_MODE_CHANGE */
|