2 * SPDX-License-Identifier: BSD-2-Clause
4 * Copyright (c) 1998 Kazutaka YOKOTA and Michael Smith
5 * Copyright (c) 2009-2013 Jung-uk Kim <jkim@FreeBSD.org>
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer as
13 * the first lines of this file unmodified.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
36 #ifndef VGA_NO_MODE_CHANGE
38 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/kernel.h>
43 #include <sys/module.h>
44 #include <sys/malloc.h>
45 #include <sys/mutex.h>
47 #include <sys/sysctl.h>
50 #include <vm/vm_extern.h>
51 #include <vm/vm_kern.h>
52 #include <vm/vm_param.h>
55 #include <machine/pc/bios.h>
56 #include <dev/fb/vesa.h>
58 #include <dev/fb/fbreg.h>
59 #include <dev/fb/vgareg.h>
61 #include <dev/pci/pcivar.h>
63 #include <isa/isareg.h>
65 #include <compat/x86bios/x86bios.h>
67 #define VESA_BIOS_OFFSET 0xc0000
68 #define VESA_PALETTE_SIZE (256 * 4)
69 #define VESA_VIA_CLE266 "VIA CLE266\r\n"
75 /* VESA video adapter state buffer stub */
78 #define V_STATE_SIG 0x61736576
81 typedef struct adp_state adp_state_t;
83 static struct mtx vesa_lock;
84 MTX_SYSINIT(vesa_lock, &vesa_lock, "VESA lock", MTX_DEF);
86 static int vesa_state;
87 static void *vesa_state_buf;
88 static uint32_t vesa_state_buf_offs;
89 static size_t vesa_state_buf_size;
91 static u_char *vesa_palette;
92 static uint32_t vesa_palette_offs;
94 static void *vesa_vmem_buf;
95 static size_t vesa_vmem_max;
97 static void *vesa_bios;
98 static uint32_t vesa_bios_offs;
99 static uint32_t vesa_bios_int10;
100 static size_t vesa_bios_size;
102 /* VESA video adapter */
103 static video_adapter_t *vesa_adp;
105 static SYSCTL_NODE(_debug, OID_AUTO, vesa, CTLFLAG_RD | CTLFLAG_MPSAFE, NULL,
107 static int vesa_shadow_rom;
108 SYSCTL_INT(_debug_vesa, OID_AUTO, shadow_rom, CTLFLAG_RDTUN, &vesa_shadow_rom,
109 0, "Enable video BIOS shadow");
113 static int vesa_nop(void);
115 static int vesa_error(void);
116 static vi_probe_t vesa_probe;
117 static vi_init_t vesa_init;
118 static vi_get_info_t vesa_get_info;
119 static vi_query_mode_t vesa_query_mode;
120 static vi_set_mode_t vesa_set_mode;
121 static vi_save_font_t vesa_save_font;
122 static vi_load_font_t vesa_load_font;
123 static vi_show_font_t vesa_show_font;
124 static vi_save_palette_t vesa_save_palette;
125 static vi_load_palette_t vesa_load_palette;
126 static vi_set_border_t vesa_set_border;
127 static vi_save_state_t vesa_save_state;
128 static vi_load_state_t vesa_load_state;
129 static vi_set_win_org_t vesa_set_origin;
130 static vi_read_hw_cursor_t vesa_read_hw_cursor;
131 static vi_set_hw_cursor_t vesa_set_hw_cursor;
132 static vi_set_hw_cursor_shape_t vesa_set_hw_cursor_shape;
133 static vi_blank_display_t vesa_blank_display;
134 static vi_mmap_t vesa_mmap;
135 static vi_ioctl_t vesa_ioctl;
136 static vi_clear_t vesa_clear;
137 static vi_fill_rect_t vesa_fill_rect;
138 static vi_bitblt_t vesa_bitblt;
139 static vi_diag_t vesa_diag;
140 static int vesa_bios_info(int level);
142 static video_switch_t vesavidsw = {
159 vesa_set_hw_cursor_shape,
171 static video_switch_t *prevvidsw;
173 /* VESA BIOS video modes */
174 #define VESA_MAXMODES 64
178 #define MODE_TABLE_DELTA 8
180 static int vesa_vmode_max;
181 static video_info_t *vesa_vmode;
183 static int vesa_init_done;
184 static struct vesa_info *vesa_adp_info;
185 static u_int16_t *vesa_vmodetab;
186 static char *vesa_oemstr;
187 static char *vesa_venderstr;
188 static char *vesa_prodstr;
189 static char *vesa_revstr;
191 /* local macros and functions */
192 #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff))
194 static int int10_set_mode(int mode);
195 static int vesa_bios_post(void);
196 static int vesa_bios_get_mode(int mode, struct vesa_mode *vmode, int flags);
197 static int vesa_bios_set_mode(int mode);
199 static int vesa_bios_get_dac(void);
201 static int vesa_bios_set_dac(int bits);
202 static int vesa_bios_save_palette(int start, int colors, u_char *palette,
204 static int vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g,
205 u_char *b, int bits);
206 static int vesa_bios_load_palette(int start, int colors, u_char *palette,
208 static int vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g,
209 u_char *b, int bits);
213 static size_t vesa_bios_state_buf_size(int);
214 static int vesa_bios_save_restore(int code, void *p);
215 #ifdef MODE_TABLE_BROKEN
216 static int vesa_bios_get_line_length(void);
218 static int vesa_bios_set_line_length(int pixel, int *bytes, int *lines);
220 static int vesa_bios_get_start(int *x, int *y);
222 static int vesa_bios_set_start(int x, int y);
223 static int vesa_map_gen_mode_num(int type, int color, int mode);
224 static int vesa_translate_flags(u_int16_t vflags);
225 static int vesa_translate_mmodel(u_int8_t vmodel);
226 static int vesa_get_bpscanline(struct vesa_mode *vmode);
227 static int vesa_bios_init(void);
228 static void vesa_bios_uninit(void);
229 static void vesa_clear_modes(video_info_t *info, int color);
232 static int vesa_get_origin(video_adapter_t *adp, off_t *offset);
235 /* INT 10 BIOS calls */
237 int10_set_mode(int mode)
241 x86bios_init_regs(®s);
244 x86bios_intr(®s, 0x10);
256 int count, i, is_pci;
258 if (x86bios_get_orm(vesa_bios_offs) == NULL)
264 /* Find the matching PCI video controller. */
265 dc = devclass_find("vgapci");
266 if (dc != NULL && devclass_get_devices(dc, &devs, &count) == 0) {
267 for (i = 0; i < count; i++)
268 if (device_get_flags(devs[i]) != 0 &&
269 x86bios_match_device(vesa_bios_offs, devs[i])) {
277 /* Try VGA if a PCI device is not found. */
279 dc = devclass_find(VGA_DRIVER_NAME);
281 dev = devclass_get_device(dc, 0);
285 printf("%s: calling BIOS POST\n",
286 dev == NULL ? "VESA" : device_get_nameunit(dev));
288 x86bios_init_regs(®s);
290 regs.R_AH = pci_get_bus(dev);
291 regs.R_AL = (pci_get_slot(dev) << 3) |
292 (pci_get_function(dev) & 0x07);
295 x86bios_call(®s, X86BIOS_PHYSTOSEG(vesa_bios_offs + 3),
296 X86BIOS_PHYSTOOFF(vesa_bios_offs + 3));
298 if (x86bios_get_intr(0x10) == 0)
304 /* VESA BIOS calls */
306 vesa_bios_get_mode(int mode, struct vesa_mode *vmode, int flags)
312 buf = x86bios_alloc(&offs, sizeof(*vmode), flags);
316 x86bios_init_regs(®s);
320 regs.R_ES = X86BIOS_PHYSTOSEG(offs);
321 regs.R_DI = X86BIOS_PHYSTOOFF(offs);
323 x86bios_intr(®s, 0x10);
325 if (regs.R_AX != 0x004f) {
326 x86bios_free(buf, sizeof(*vmode));
330 bcopy(buf, vmode, sizeof(*vmode));
331 x86bios_free(buf, sizeof(*vmode));
337 vesa_bios_set_mode(int mode)
341 x86bios_init_regs(®s);
345 x86bios_intr(®s, 0x10);
347 return (regs.R_AX != 0x004f);
352 vesa_bios_get_dac(void)
356 x86bios_init_regs(®s);
360 x86bios_intr(®s, 0x10);
362 if (regs.R_AX != 0x004f)
370 vesa_bios_set_dac(int bits)
374 x86bios_init_regs(®s);
379 x86bios_intr(®s, 0x10);
381 if (regs.R_AX != 0x004f)
388 vesa_bios_save_palette(int start, int colors, u_char *palette, int bits)
393 x86bios_init_regs(®s);
399 regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs);
400 regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs);
403 mtx_lock(&vesa_lock);
404 x86bios_intr(®s, 0x10);
405 if (regs.R_AX != 0x004f) {
406 mtx_unlock(&vesa_lock);
409 for (i = 0; i < colors; ++i) {
410 palette[i * 3] = vesa_palette[i * 4 + 2] << bits;
411 palette[i * 3 + 1] = vesa_palette[i * 4 + 1] << bits;
412 palette[i * 3 + 2] = vesa_palette[i * 4] << bits;
414 mtx_unlock(&vesa_lock);
420 vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, u_char *b,
426 x86bios_init_regs(®s);
432 regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs);
433 regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs);
436 mtx_lock(&vesa_lock);
437 x86bios_intr(®s, 0x10);
438 if (regs.R_AX != 0x004f) {
439 mtx_unlock(&vesa_lock);
442 for (i = 0; i < colors; ++i) {
443 r[i] = vesa_palette[i * 4 + 2] << bits;
444 g[i] = vesa_palette[i * 4 + 1] << bits;
445 b[i] = vesa_palette[i * 4] << bits;
447 mtx_unlock(&vesa_lock);
453 vesa_bios_load_palette(int start, int colors, u_char *palette, int bits)
458 x86bios_init_regs(®s);
464 regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs);
465 regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs);
468 mtx_lock(&vesa_lock);
469 for (i = 0; i < colors; ++i) {
470 vesa_palette[i * 4] = palette[i * 3 + 2] >> bits;
471 vesa_palette[i * 4 + 1] = palette[i * 3 + 1] >> bits;
472 vesa_palette[i * 4 + 2] = palette[i * 3] >> bits;
473 vesa_palette[i * 4 + 3] = 0;
475 x86bios_intr(®s, 0x10);
476 mtx_unlock(&vesa_lock);
478 return (regs.R_AX != 0x004f);
482 vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, u_char *b,
488 x86bios_init_regs(®s);
494 regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs);
495 regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs);
498 mtx_lock(&vesa_lock);
499 for (i = 0; i < colors; ++i) {
500 vesa_palette[i * 4] = b[i] >> bits;
501 vesa_palette[i * 4 + 1] = g[i] >> bits;
502 vesa_palette[i * 4 + 2] = r[i] >> bits;
503 vesa_palette[i * 4 + 3] = 0;
505 x86bios_intr(®s, 0x10);
506 mtx_unlock(&vesa_lock);
508 return (regs.R_AX != 0x004f);
512 vesa_bios_state_buf_size(int state)
516 x86bios_init_regs(®s);
518 /* regs.R_DL = STATE_SIZE; */
521 x86bios_intr(®s, 0x10);
523 if (regs.R_AX != 0x004f)
526 return (regs.R_BX * 64);
530 vesa_bios_save_restore(int code, void *p)
534 if (code != STATE_SAVE && code != STATE_LOAD)
537 x86bios_init_regs(®s);
540 regs.R_CX = vesa_state;
542 regs.R_ES = X86BIOS_PHYSTOSEG(vesa_state_buf_offs);
543 regs.R_BX = X86BIOS_PHYSTOOFF(vesa_state_buf_offs);
545 mtx_lock(&vesa_lock);
548 x86bios_intr(®s, 0x10);
549 if (regs.R_AX == 0x004f)
550 bcopy(vesa_state_buf, p, vesa_state_buf_size);
553 bcopy(p, vesa_state_buf, vesa_state_buf_size);
554 x86bios_intr(®s, 0x10);
557 mtx_unlock(&vesa_lock);
559 return (regs.R_AX != 0x004f);
562 #ifdef MODE_TABLE_BROKEN
564 vesa_bios_get_line_length(void)
568 x86bios_init_regs(®s);
572 x86bios_intr(®s, 0x10);
574 if (regs.R_AX != 0x004f)
582 vesa_bios_set_line_length(int pixel, int *bytes, int *lines)
586 x86bios_init_regs(®s);
591 x86bios_intr(®s, 0x10);
594 printf("bx:%d, cx:%d, dx:%d\n", regs.R_BX, regs.R_CX, regs.R_DX);
596 if (regs.R_AX != 0x004f)
609 vesa_bios_get_start(int *x, int *y)
613 x86bios_init_regs(®s);
617 x86bios_intr(®s, 0x10);
619 if (regs.R_AX != 0x004f)
630 vesa_bios_set_start(int x, int y)
634 x86bios_init_regs(®s);
640 x86bios_intr(®s, 0x10);
642 return (regs.R_AX != 0x004f);
645 /* map a generic video mode to a known mode */
647 vesa_map_gen_mode_num(int type, int color, int mode)
653 { M_TEXT_132x25, M_VESA_C132x25 },
654 { M_TEXT_132x43, M_VESA_C132x43 },
655 { M_TEXT_132x50, M_VESA_C132x50 },
656 { M_TEXT_132x60, M_VESA_C132x60 },
660 for (i = 0; i < nitems(mode_map); ++i) {
661 if (mode_map[i].from == mode)
662 return (mode_map[i].to);
668 vesa_translate_flags(u_int16_t vflags)
675 { V_MODECOLOR, V_INFO_COLOR, 0 },
676 { V_MODEGRAPHICS, V_INFO_GRAPHICS, 0 },
677 { V_MODELFB, V_INFO_LINEAR, 0 },
678 { V_MODENONVGA, V_INFO_NONVGA, 0 },
683 for (flags = 0, i = 0; i < nitems(ftable); ++i) {
684 flags |= (vflags & ftable[i].mask) ?
685 ftable[i].set : ftable[i].reset;
691 vesa_translate_mmodel(u_int8_t vmodel)
697 { V_MMTEXT, V_INFO_MM_TEXT },
698 { V_MMCGA, V_INFO_MM_CGA },
699 { V_MMHGC, V_INFO_MM_HGC },
700 { V_MMEGA, V_INFO_MM_PLANAR },
701 { V_MMPACKED, V_INFO_MM_PACKED },
702 { V_MMDIRCOLOR, V_INFO_MM_DIRECT },
706 for (i = 0; mtable[i].mmodel >= 0; ++i) {
707 if (mtable[i].vmodel == vmodel)
708 return (mtable[i].mmodel);
710 return (V_INFO_MM_OTHER);
714 vesa_get_bpscanline(struct vesa_mode *vmode)
718 if ((vmode->v_modeattr & V_MODEGRAPHICS) != 0) {
719 /* Find the minimum length. */
720 switch (vmode->v_bpp / vmode->v_planes) {
722 bpsl = vmode->v_width / 8;
725 bpsl = vmode->v_width / 4;
728 bpsl = vmode->v_width / 2;
731 bpsl = vmode->v_width * ((vmode->v_bpp + 7) / 8);
732 bpsl /= vmode->v_planes;
736 /* Use VBE 3.0 information if it looks sane. */
737 if ((vmode->v_modeattr & V_MODELFB) != 0 &&
738 vesa_adp_info->v_version >= 0x0300 &&
739 vmode->v_linbpscanline > bpsl)
740 return (vmode->v_linbpscanline);
742 /* Return the minimum if the mode table looks absurd. */
743 if (vmode->v_bpscanline < bpsl)
747 return (vmode->v_bpscanline);
750 #define VESA_MAXSTR 256
752 #define VESA_STRCPY(dst, src) do { \
755 dst = malloc(VESA_MAXSTR, M_DEVBUF, M_WAITOK); \
756 str = x86bios_offset(BIOS_SADDRTOLADDR(src)); \
757 for (i = 0; i < VESA_MAXSTR - 1 && str[i] != '\0'; i++) \
765 struct vesa_mode vmode;
766 struct vesa_info *buf;
782 vesa_bios_offs = VESA_BIOS_OFFSET;
785 * If the VBE real mode interrupt vector is not found, try BIOS POST.
787 vesa_bios_int10 = x86bios_get_intr(0x10);
788 if (vesa_bios_int10 == 0) {
789 if (vesa_bios_post() != 0)
791 vesa_bios_int10 = x86bios_get_intr(0x10);
792 if (vesa_bios_int10 == 0)
799 offs = vesa_bios_int10;
800 if (vesa_shadow_rom) {
801 vbios = x86bios_get_orm(vesa_bios_offs);
803 vesa_bios_size = vbios[2] * 512;
804 if (((VESA_BIOS_OFFSET << 12) & 0xffff0000) ==
805 (vesa_bios_int10 & 0xffff0000) &&
806 vesa_bios_size > (vesa_bios_int10 & 0xffff)) {
807 vesa_bios = x86bios_alloc(&vesa_bios_offs,
808 vesa_bios_size, M_WAITOK);
809 bcopy(vbios, vesa_bios, vesa_bios_size);
810 offs = ((vesa_bios_offs << 12) & 0xffff0000) +
811 (vesa_bios_int10 & 0xffff);
812 x86bios_set_intr(0x10, offs);
815 if (vesa_bios == NULL)
816 printf("VESA: failed to shadow video ROM\n");
819 printf("VESA: INT 0x10 vector 0x%04x:0x%04x\n",
820 (offs >> 16) & 0xffff, offs & 0xffff);
822 x86bios_init_regs(®s);
825 vmbuf = x86bios_alloc(&offs, sizeof(*buf), M_WAITOK);
827 regs.R_ES = X86BIOS_PHYSTOSEG(offs);
828 regs.R_DI = X86BIOS_PHYSTOOFF(offs);
830 bcopy("VBE2", vmbuf, 4); /* try for VBE2 data */
831 x86bios_intr(®s, 0x10);
833 if (regs.R_AX != 0x004f || bcmp("VESA", vmbuf, 4) != 0)
836 vesa_adp_info = buf = malloc(sizeof(*buf), M_DEVBUF, M_WAITOK);
837 bcopy(vmbuf, buf, sizeof(*buf));
840 printf("VESA: information block\n");
841 hexdump(buf, sizeof(*buf), NULL, HD_OMIT_CHARS);
844 vers = buf->v_version = le16toh(buf->v_version);
845 buf->v_oemstr = le32toh(buf->v_oemstr);
846 buf->v_flags = le32toh(buf->v_flags);
847 buf->v_modetable = le32toh(buf->v_modetable);
848 buf->v_memsize = le16toh(buf->v_memsize);
849 buf->v_revision = le16toh(buf->v_revision);
850 buf->v_venderstr = le32toh(buf->v_venderstr);
851 buf->v_prodstr = le32toh(buf->v_prodstr);
852 buf->v_revstr = le32toh(buf->v_revstr);
855 printf("VESA: VBE version %d.%d is not supported; "
856 "version 1.2 or later is required.\n",
857 ((vers & 0xf000) >> 12) * 10 + ((vers & 0x0f00) >> 8),
858 ((vers & 0x00f0) >> 4) * 10 + (vers & 0x000f));
862 VESA_STRCPY(vesa_oemstr, buf->v_oemstr);
863 if (vers >= 0x0200) {
864 VESA_STRCPY(vesa_venderstr, buf->v_venderstr);
865 VESA_STRCPY(vesa_prodstr, buf->v_prodstr);
866 VESA_STRCPY(vesa_revstr, buf->v_revstr);
868 is_via_cle266 = strncmp(vesa_oemstr, VESA_VIA_CLE266,
869 sizeof(VESA_VIA_CLE266)) == 0;
871 if (buf->v_modetable == 0)
874 msize = (size_t)buf->v_memsize * 64 * 1024;
876 vesa_vmodetab = x86bios_offset(BIOS_SADDRTOLADDR(buf->v_modetable));
878 for (i = 0, modes = 0; (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1)) &&
879 (vesa_vmodetab[i] != 0xffff); ++i) {
880 vesa_vmodetab[i] = le16toh(vesa_vmodetab[i]);
881 if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode, M_WAITOK))
884 vmode.v_modeattr = le16toh(vmode.v_modeattr);
885 vmode.v_wgran = le16toh(vmode.v_wgran);
886 vmode.v_wsize = le16toh(vmode.v_wsize);
887 vmode.v_waseg = le16toh(vmode.v_waseg);
888 vmode.v_wbseg = le16toh(vmode.v_wbseg);
889 vmode.v_posfunc = le32toh(vmode.v_posfunc);
890 vmode.v_bpscanline = le16toh(vmode.v_bpscanline);
891 vmode.v_width = le16toh(vmode.v_width);
892 vmode.v_height = le16toh(vmode.v_height);
893 vmode.v_lfb = le32toh(vmode.v_lfb);
894 vmode.v_offscreen = le32toh(vmode.v_offscreen);
895 vmode.v_offscreensize = le16toh(vmode.v_offscreensize);
896 vmode.v_linbpscanline = le16toh(vmode.v_linbpscanline);
897 vmode.v_maxpixelclock = le32toh(vmode.v_maxpixelclock);
899 /* reject unsupported modes */
901 if ((vmode.v_modeattr &
902 (V_MODESUPP | V_MODEOPTINFO | V_MODENONVGA)) !=
903 (V_MODESUPP | V_MODEOPTINFO))
906 if ((vmode.v_modeattr & V_MODEOPTINFO) == 0) {
908 printf("Rejecting VESA %s mode: %d x %d x %d bpp "
910 vmode.v_modeattr & V_MODEGRAPHICS ?
912 vmode.v_width, vmode.v_height, vmode.v_bpp,
919 bsize = vesa_get_bpscanline(&vmode) * vmode.v_height;
920 if ((vmode.v_modeattr & V_MODEGRAPHICS) != 0)
921 bsize *= vmode.v_planes;
923 /* Does it have enough memory to support this mode? */
926 printf("Rejecting VESA %s mode: %d x %d x %d bpp "
927 " attr = %x, not enough memory\n",
928 vmode.v_modeattr & V_MODEGRAPHICS ?
930 vmode.v_width, vmode.v_height, vmode.v_bpp,
935 if (bsize > vesa_vmem_max)
936 vesa_vmem_max = bsize;
938 /* expand the array if necessary */
939 if (modes >= vesa_vmode_max) {
940 vesa_vmode_max += MODE_TABLE_DELTA;
941 p = malloc(sizeof(*vesa_vmode) * (vesa_vmode_max + 1),
944 printf("vesa_bios_init(): modes:%d, vesa_mode_max:%d\n",
945 modes, vesa_vmode_max);
948 bcopy(vesa_vmode, p, sizeof(*vesa_vmode)*modes);
949 free(vesa_vmode, M_DEVBUF);
955 printf("Found VESA %s mode: %d x %d x %d bpp\n",
956 vmode.v_modeattr & V_MODEGRAPHICS ? "graphics" : "text",
957 vmode.v_width, vmode.v_height, vmode.v_bpp);
960 if ((vmode.v_width & 0xff00) >> 8 == vmode.v_height - 1) {
961 vmode.v_width &= 0xff;
962 vmode.v_waseg = 0xb8000 >> 4;
966 /* copy some fields */
967 bzero(&vesa_vmode[modes], sizeof(vesa_vmode[modes]));
968 vesa_vmode[modes].vi_mode = vesa_vmodetab[i];
969 vesa_vmode[modes].vi_width = vmode.v_width;
970 vesa_vmode[modes].vi_height = vmode.v_height;
971 vesa_vmode[modes].vi_depth = vmode.v_bpp;
972 vesa_vmode[modes].vi_planes = vmode.v_planes;
973 vesa_vmode[modes].vi_cwidth = vmode.v_cwidth;
974 vesa_vmode[modes].vi_cheight = vmode.v_cheight;
975 vesa_vmode[modes].vi_window = (vm_offset_t)vmode.v_waseg << 4;
977 vesa_vmode[modes].vi_window_size = vmode.v_wsize * 1024;
978 vesa_vmode[modes].vi_window_gran = vmode.v_wgran * 1024;
979 if (vmode.v_modeattr & V_MODELFB)
980 vesa_vmode[modes].vi_buffer = vmode.v_lfb;
981 vesa_vmode[modes].vi_buffer_size = bsize;
982 vesa_vmode[modes].vi_mem_model =
983 vesa_translate_mmodel(vmode.v_memmodel);
984 switch (vesa_vmode[modes].vi_mem_model) {
985 case V_INFO_MM_DIRECT:
986 if ((vmode.v_modeattr & V_MODELFB) != 0 &&
988 vesa_vmode[modes].vi_pixel_fields[0] =
989 vmode.v_linredfieldpos;
990 vesa_vmode[modes].vi_pixel_fields[1] =
991 vmode.v_lingreenfieldpos;
992 vesa_vmode[modes].vi_pixel_fields[2] =
993 vmode.v_linbluefieldpos;
994 vesa_vmode[modes].vi_pixel_fields[3] =
995 vmode.v_linresfieldpos;
996 vesa_vmode[modes].vi_pixel_fsizes[0] =
997 vmode.v_linredmasksize;
998 vesa_vmode[modes].vi_pixel_fsizes[1] =
999 vmode.v_lingreenmasksize;
1000 vesa_vmode[modes].vi_pixel_fsizes[2] =
1001 vmode.v_linbluemasksize;
1002 vesa_vmode[modes].vi_pixel_fsizes[3] =
1003 vmode.v_linresmasksize;
1005 vesa_vmode[modes].vi_pixel_fields[0] =
1006 vmode.v_redfieldpos;
1007 vesa_vmode[modes].vi_pixel_fields[1] =
1008 vmode.v_greenfieldpos;
1009 vesa_vmode[modes].vi_pixel_fields[2] =
1010 vmode.v_bluefieldpos;
1011 vesa_vmode[modes].vi_pixel_fields[3] =
1012 vmode.v_resfieldpos;
1013 vesa_vmode[modes].vi_pixel_fsizes[0] =
1014 vmode.v_redmasksize;
1015 vesa_vmode[modes].vi_pixel_fsizes[1] =
1016 vmode.v_greenmasksize;
1017 vesa_vmode[modes].vi_pixel_fsizes[2] =
1018 vmode.v_bluemasksize;
1019 vesa_vmode[modes].vi_pixel_fsizes[3] =
1020 vmode.v_resmasksize;
1023 case V_INFO_MM_PACKED:
1024 vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7) / 8;
1027 vesa_vmode[modes].vi_flags =
1028 vesa_translate_flags(vmode.v_modeattr) | V_INFO_VESA;
1032 if (vesa_vmode != NULL)
1033 vesa_vmode[modes].vi_mode = EOT;
1036 printf("VESA: %d mode(s) found\n", modes);
1041 x86bios_free(vmbuf, sizeof(*buf));
1043 /* Probe supported save/restore states. */
1044 for (i = 0; i < 4; i++)
1045 if (vesa_bios_state_buf_size(1 << i) > 0)
1046 vesa_state |= 1 << i;
1047 if (vesa_state != 0)
1048 vesa_state_buf_size = vesa_bios_state_buf_size(vesa_state);
1049 vesa_palette = x86bios_alloc(&vesa_palette_offs,
1050 VESA_PALETTE_SIZE + vesa_state_buf_size, M_WAITOK);
1051 if (vesa_state_buf_size > 0) {
1052 vesa_state_buf = vesa_palette + VESA_PALETTE_SIZE;
1053 vesa_state_buf_offs = vesa_palette_offs + VESA_PALETTE_SIZE;
1059 x86bios_free(vmbuf, sizeof(buf));
1065 vesa_bios_uninit(void)
1068 if (vesa_bios != NULL) {
1069 x86bios_set_intr(0x10, vesa_bios_int10);
1070 vesa_bios_offs = VESA_BIOS_OFFSET;
1071 x86bios_free(vesa_bios, vesa_bios_size);
1074 if (vesa_adp_info != NULL) {
1075 free(vesa_adp_info, M_DEVBUF);
1076 vesa_adp_info = NULL;
1078 if (vesa_oemstr != NULL) {
1079 free(vesa_oemstr, M_DEVBUF);
1082 if (vesa_venderstr != NULL) {
1083 free(vesa_venderstr, M_DEVBUF);
1084 vesa_venderstr = NULL;
1086 if (vesa_prodstr != NULL) {
1087 free(vesa_prodstr, M_DEVBUF);
1088 vesa_prodstr = NULL;
1090 if (vesa_revstr != NULL) {
1091 free(vesa_revstr, M_DEVBUF);
1094 if (vesa_vmode != NULL) {
1095 free(vesa_vmode, M_DEVBUF);
1098 if (vesa_palette != NULL) {
1099 x86bios_free(vesa_palette,
1100 VESA_PALETTE_SIZE + vesa_state_buf_size);
1101 vesa_palette = NULL;
1106 vesa_clear_modes(video_info_t *info, int color)
1108 while (info->vi_mode != EOT) {
1109 if ((info->vi_flags & V_INFO_COLOR) != color)
1118 vesa_configure(int flags)
1120 video_adapter_t *adp;
1127 if (flags & VIO_PROBE_ONLY)
1131 * If the VESA module has already been loaded, abort loading
1132 * the module this time.
1134 for (i = 0; (adp = vid_get_adapter(i)) != NULL; ++i) {
1135 if (adp->va_flags & V_ADP_VESA)
1137 if (adp->va_type == KD_VGA)
1142 * The VGA adapter is not found. This is because either
1143 * 1) the VGA driver has not been initialized, or 2) the VGA card
1144 * is not present. If 1) is the case, we shall defer
1145 * initialization for now and try again later.
1148 vga_sub_configure = vesa_configure;
1152 /* count number of registered adapters */
1153 for (++i; vid_get_adapter(i) != NULL; ++i)
1157 /* call VESA BIOS */
1159 if (vesa_bios_init()) {
1163 vesa_adp->va_flags |= V_ADP_VESA;
1165 /* remove conflicting modes if we have more than one adapter */
1167 vesa_clear_modes(vesa_vmode,
1168 (vesa_adp->va_flags & V_ADP_COLOR) ?
1172 if ((error = vesa_load_ioctl()) == 0) {
1173 prevvidsw = vidsw[vesa_adp->va_index];
1174 vidsw[vesa_adp->va_index] = &vesavidsw;
1175 vesa_init_done = TRUE;
1201 vesa_probe(int unit, video_adapter_t **adpp, void *arg, int flags)
1204 return ((*prevvidsw->probe)(unit, adpp, arg, flags));
1208 vesa_init(int unit, video_adapter_t *adp, int flags)
1211 return ((*prevvidsw->init)(unit, adp, flags));
1215 vesa_get_info(video_adapter_t *adp, int mode, video_info_t *info)
1219 if ((*prevvidsw->get_info)(adp, mode, info) == 0)
1222 if (adp != vesa_adp)
1225 mode = vesa_map_gen_mode_num(vesa_adp->va_type,
1226 vesa_adp->va_flags & V_ADP_COLOR, mode);
1227 for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) {
1228 if (vesa_vmode[i].vi_mode == NA)
1230 if (vesa_vmode[i].vi_mode == mode) {
1231 *info = vesa_vmode[i];
1239 vesa_query_mode(video_adapter_t *adp, video_info_t *info)
1243 if ((*prevvidsw->query_mode)(adp, info) == 0)
1245 if (adp != vesa_adp)
1248 for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) {
1249 if ((info->vi_width != 0)
1250 && (info->vi_width != vesa_vmode[i].vi_width))
1252 if ((info->vi_height != 0)
1253 && (info->vi_height != vesa_vmode[i].vi_height))
1255 if ((info->vi_cwidth != 0)
1256 && (info->vi_cwidth != vesa_vmode[i].vi_cwidth))
1258 if ((info->vi_cheight != 0)
1259 && (info->vi_cheight != vesa_vmode[i].vi_cheight))
1261 if ((info->vi_depth != 0)
1262 && (info->vi_depth != vesa_vmode[i].vi_depth))
1264 if ((info->vi_planes != 0)
1265 && (info->vi_planes != vesa_vmode[i].vi_planes))
1267 /* pixel format, memory model */
1268 if ((info->vi_flags != 0)
1269 && (info->vi_flags != vesa_vmode[i].vi_flags))
1271 *info = vesa_vmode[i];
1278 vesa_set_mode(video_adapter_t *adp, int mode)
1282 if (adp != vesa_adp)
1283 return ((*prevvidsw->set_mode)(adp, mode));
1285 mode = vesa_map_gen_mode_num(adp->va_type,
1286 adp->va_flags & V_ADP_COLOR, mode);
1288 printf("VESA: set_mode(): %d(%x) -> %d(%x)\n",
1289 adp->va_mode, adp->va_mode, mode, mode);
1292 * If the current mode is a VESA mode and the new mode is not,
1293 * restore the state of the adapter first by setting one of the
1294 * standard VGA mode, so that non-standard, extended SVGA registers
1295 * are set to the state compatible with the standard VGA modes.
1296 * Otherwise (*prevvidsw->set_mode)() may not be able to set up
1297 * the new mode correctly.
1299 if (VESA_MODE(adp->va_mode)) {
1300 if (!VESA_MODE(mode) &&
1301 (*prevvidsw->get_info)(adp, mode, &info) == 0) {
1302 if ((adp->va_flags & V_ADP_DAC8) != 0) {
1303 vesa_bios_set_dac(6);
1304 adp->va_flags &= ~V_ADP_DAC8;
1306 int10_set_mode(adp->va_initial_bios_mode);
1307 if (adp->va_info.vi_flags & V_INFO_LINEAR)
1308 pmap_unmapdev((void *)adp->va_buffer,
1311 * Once (*prevvidsw->get_info)() succeeded,
1312 * (*prevvidsw->set_mode)() below won't fail...
1317 /* we may not need to handle this mode after all... */
1318 if (!VESA_MODE(mode) && (*prevvidsw->set_mode)(adp, mode) == 0)
1321 /* is the new mode supported? */
1322 if (vesa_get_info(adp, mode, &info))
1324 /* assert(VESA_MODE(mode)); */
1327 printf("VESA: about to set a VESA mode...\n");
1330 * The mode change should reset the palette format to 6 bits, so
1331 * we must reset V_ADP_DAC8. Some BIOSes do an incomplete reset
1332 * if we call them with an 8-bit palette, so reset directly.
1334 if (adp->va_flags & V_ADP_DAC8) {
1335 vesa_bios_set_dac(6);
1336 adp->va_flags &= ~V_ADP_DAC8;
1339 /* don't use the linear frame buffer for text modes. XXX */
1340 if (!(info.vi_flags & V_INFO_GRAPHICS))
1341 info.vi_flags &= ~V_INFO_LINEAR;
1343 if ((info.vi_flags & V_INFO_LINEAR) != 0)
1345 if (vesa_bios_set_mode(mode | 0x8000))
1348 if ((vesa_adp_info->v_flags & V_DAC8) != 0 &&
1349 (info.vi_flags & V_INFO_GRAPHICS) != 0 &&
1350 vesa_bios_set_dac(8) > 6)
1351 adp->va_flags |= V_ADP_DAC8;
1353 if (adp->va_info.vi_flags & V_INFO_LINEAR)
1354 pmap_unmapdev((void *)adp->va_buffer, vesa_vmem_max);
1357 printf("VESA: mode set!\n");
1359 vesa_adp->va_mode = mode & 0x1ff; /* Mode number is 9-bit. */
1360 vesa_adp->va_flags &= ~V_ADP_COLOR;
1361 vesa_adp->va_flags |=
1362 (info.vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0;
1363 vesa_adp->va_crtc_addr =
1364 (vesa_adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC;
1366 vesa_adp->va_flags &= ~V_ADP_CWIDTH9;
1367 vesa_adp->va_line_width = info.vi_buffer_size / info.vi_height;
1368 if ((info.vi_flags & V_INFO_GRAPHICS) != 0)
1369 vesa_adp->va_line_width /= info.vi_planes;
1371 #ifdef MODE_TABLE_BROKEN
1372 /* If VBE function returns bigger bytes per scan line, use it. */
1374 int bpsl = vesa_bios_get_line_length();
1375 if (bpsl > vesa_adp->va_line_width) {
1376 vesa_adp->va_line_width = bpsl;
1377 info.vi_buffer_size = bpsl * info.vi_height;
1378 if ((info.vi_flags & V_INFO_GRAPHICS) != 0)
1379 info.vi_buffer_size *= info.vi_planes;
1384 if (info.vi_flags & V_INFO_LINEAR) {
1386 printf("VESA: setting up LFB\n");
1388 vesa_adp->va_buffer =
1389 (vm_offset_t)pmap_mapdev_attr(info.vi_buffer,
1390 vesa_vmem_max, PAT_WRITE_COMBINING);
1391 vesa_adp->va_window = vesa_adp->va_buffer;
1392 vesa_adp->va_window_size = info.vi_buffer_size / info.vi_planes;
1393 vesa_adp->va_window_gran = info.vi_buffer_size / info.vi_planes;
1395 vesa_adp->va_buffer = 0;
1396 vesa_adp->va_window = (vm_offset_t)x86bios_offset(info.vi_window);
1397 vesa_adp->va_window_size = info.vi_window_size;
1398 vesa_adp->va_window_gran = info.vi_window_gran;
1400 vesa_adp->va_buffer_size = info.vi_buffer_size;
1401 vesa_adp->va_window_orig = 0;
1402 vesa_adp->va_disp_start.x = 0;
1403 vesa_adp->va_disp_start.y = 0;
1405 printf("vesa_set_mode(): vi_width:%d, line_width:%d\n",
1406 info.vi_width, vesa_adp->va_line_width);
1408 bcopy(&info, &vesa_adp->va_info, sizeof(vesa_adp->va_info));
1410 /* move hardware cursor out of the way */
1411 (*vidsw[vesa_adp->va_index]->set_hw_cursor)(vesa_adp, -1, -1);
1417 vesa_save_font(video_adapter_t *adp, int page, int fontsize, int fontwidth,
1418 u_char *data, int ch, int count)
1421 return ((*prevvidsw->save_font)(adp, page, fontsize, fontwidth, data,
1426 vesa_load_font(video_adapter_t *adp, int page, int fontsize, int fontwidth,
1427 u_char *data, int ch, int count)
1430 return ((*prevvidsw->load_font)(adp, page, fontsize, fontwidth, data,
1435 vesa_show_font(video_adapter_t *adp, int page)
1438 return ((*prevvidsw->show_font)(adp, page));
1442 vesa_save_palette(video_adapter_t *adp, u_char *palette)
1446 if (adp == vesa_adp && VESA_MODE(adp->va_mode)) {
1447 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6;
1448 if (vesa_bios_save_palette(0, 256, palette, bits) == 0)
1452 return ((*prevvidsw->save_palette)(adp, palette));
1456 vesa_load_palette(video_adapter_t *adp, u_char *palette)
1460 if (adp == vesa_adp && VESA_MODE(adp->va_mode)) {
1461 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6;
1462 if (vesa_bios_load_palette(0, 256, palette, bits) == 0)
1466 return ((*prevvidsw->load_palette)(adp, palette));
1470 vesa_set_border(video_adapter_t *adp, int color)
1473 return ((*prevvidsw->set_border)(adp, color));
1477 vesa_save_state(video_adapter_t *adp, void *p, size_t size)
1482 if (adp != vesa_adp || (size == 0 && vesa_state_buf_size == 0))
1483 return ((*prevvidsw->save_state)(adp, p, size));
1485 bsize = offsetof(adp_state_t, regs) + vesa_state_buf_size;
1488 if (vesa_state_buf_size > 0 && size < bsize)
1491 if (vesa_vmem_buf != NULL) {
1492 free(vesa_vmem_buf, M_DEVBUF);
1493 vesa_vmem_buf = NULL;
1495 if (VESA_MODE(adp->va_mode)) {
1496 buf = (void *)adp->va_buffer;
1498 bsize = adp->va_buffer_size;
1499 vesa_vmem_buf = malloc(bsize, M_DEVBUF, M_NOWAIT);
1500 if (vesa_vmem_buf != NULL)
1501 bcopy(buf, vesa_vmem_buf, bsize);
1504 if (vesa_state_buf_size == 0)
1505 return ((*prevvidsw->save_state)(adp, p, size));
1506 ((adp_state_t *)p)->sig = V_STATE_SIG;
1507 return (vesa_bios_save_restore(STATE_SAVE, ((adp_state_t *)p)->regs));
1511 vesa_load_state(video_adapter_t *adp, void *p)
1517 if (adp != vesa_adp)
1518 return ((*prevvidsw->load_state)(adp, p));
1520 /* Try BIOS POST to restore a sane state. */
1521 (void)vesa_bios_post();
1522 bsize = adp->va_buffer_size;
1523 mode = adp->va_mode;
1524 error = vesa_set_mode(adp, adp->va_initial_mode);
1525 if (mode != adp->va_initial_mode)
1526 error = vesa_set_mode(adp, mode);
1528 if (vesa_vmem_buf != NULL) {
1529 if (error == 0 && VESA_MODE(mode)) {
1530 buf = (void *)adp->va_buffer;
1532 bcopy(vesa_vmem_buf, buf, bsize);
1534 free(vesa_vmem_buf, M_DEVBUF);
1535 vesa_vmem_buf = NULL;
1537 if (((adp_state_t *)p)->sig != V_STATE_SIG)
1538 return ((*prevvidsw->load_state)(adp, p));
1539 return (vesa_bios_save_restore(STATE_LOAD, ((adp_state_t *)p)->regs));
1544 vesa_get_origin(video_adapter_t *adp, off_t *offset)
1548 x86bios_init_regs(®s);
1552 x86bios_intr(®s, 0x10);
1554 if (regs.R_AX != 0x004f)
1556 *offset = regs.DX * adp->va_window_gran;
1563 vesa_set_origin(video_adapter_t *adp, off_t offset)
1568 * This function should return as quickly as possible to
1569 * maintain good performance of the system. For this reason,
1570 * error checking is kept minimal and let the VESA BIOS to
1573 if (adp != vesa_adp)
1574 return ((*prevvidsw->set_win_org)(adp, offset));
1576 /* if this is a linear frame buffer, do nothing */
1577 if (adp->va_info.vi_flags & V_INFO_LINEAR)
1580 if (adp->va_window_gran == 0)
1583 x86bios_init_regs(®s);
1585 regs.R_DX = offset / adp->va_window_gran;
1587 x86bios_intr(®s, 0x10);
1589 if (regs.R_AX != 0x004f)
1592 x86bios_init_regs(®s);
1595 regs.R_DX = offset / adp->va_window_gran;
1596 x86bios_intr(®s, 0x10);
1598 adp->va_window_orig = rounddown(offset, adp->va_window_gran);
1599 return (0); /* XXX */
1603 vesa_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
1606 return ((*prevvidsw->read_hw_cursor)(adp, col, row));
1610 vesa_set_hw_cursor(video_adapter_t *adp, int col, int row)
1613 return ((*prevvidsw->set_hw_cursor)(adp, col, row));
1617 vesa_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
1618 int celsize, int blink)
1621 return ((*prevvidsw->set_hw_cursor_shape)(adp, base, height, celsize,
1626 vesa_blank_display(video_adapter_t *adp, int mode)
1629 /* XXX: use VESA DPMS */
1630 return ((*prevvidsw->blank_display)(adp, mode));
1634 vesa_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
1635 int prot, vm_memattr_t *memattr)
1639 printf("vesa_mmap(): window:0x%tx, buffer:0x%tx, offset:0x%jx\n",
1640 adp->va_info.vi_window, adp->va_info.vi_buffer, offset);
1643 if ((adp == vesa_adp) &&
1644 (adp->va_info.vi_flags & V_INFO_LINEAR) != 0) {
1645 /* va_window_size == va_buffer_size/vi_planes */
1646 /* XXX: is this correct? */
1647 if (offset > adp->va_window_size - PAGE_SIZE)
1649 *paddr = adp->va_info.vi_buffer + offset;
1650 #ifdef VM_MEMATTR_WRITE_COMBINING
1651 *memattr = VM_MEMATTR_WRITE_COMBINING;
1655 return ((*prevvidsw->mmap)(adp, offset, paddr, prot, memattr));
1659 vesa_clear(video_adapter_t *adp)
1662 return ((*prevvidsw->clear)(adp));
1666 vesa_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
1669 return ((*prevvidsw->fill_rect)(adp, val, x, y, cx, cy));
1673 vesa_bitblt(video_adapter_t *adp,...)
1681 get_palette(video_adapter_t *adp, int base, int count,
1682 u_char *red, u_char *green, u_char *blue, u_char *trans)
1690 if (base < 0 || base >= 256 || count < 0 || count > 256)
1692 if ((base + count) > 256)
1694 if (!VESA_MODE(adp->va_mode))
1697 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6;
1698 r = malloc(count * 3, M_DEVBUF, M_WAITOK);
1701 error = vesa_bios_save_palette2(base, count, r, g, b, bits);
1703 copyout(r, red, count);
1704 copyout(g, green, count);
1705 copyout(b, blue, count);
1706 if (trans != NULL) {
1708 copyout(r, trans, count);
1717 set_palette(video_adapter_t *adp, int base, int count,
1718 u_char *red, u_char *green, u_char *blue, u_char *trans)
1726 if (base < 0 || base >= 256 || count < 0 || count > 256)
1728 if ((base + count) > 256)
1730 if (!VESA_MODE(adp->va_mode))
1733 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6;
1734 r = malloc(count * 3, M_DEVBUF, M_WAITOK);
1737 copyin(red, r, count);
1738 copyin(green, g, count);
1739 copyin(blue, b, count);
1741 error = vesa_bios_load_palette2(base, count, r, g, b, bits);
1748 vesa_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg)
1752 if (adp != vesa_adp)
1753 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1756 case FBIO_SETWINORG: /* set frame buffer window origin */
1757 if (!VESA_MODE(adp->va_mode))
1758 return (*prevvidsw->ioctl)(adp, cmd, arg);
1759 return (vesa_set_origin(adp, *(off_t *)arg) ? ENODEV : 0);
1761 case FBIO_SETDISPSTART: /* set display start address */
1762 if (!VESA_MODE(adp->va_mode))
1763 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1764 if (vesa_bios_set_start(((video_display_start_t *)arg)->x,
1765 ((video_display_start_t *)arg)->y))
1767 adp->va_disp_start.x = ((video_display_start_t *)arg)->x;
1768 adp->va_disp_start.y = ((video_display_start_t *)arg)->y;
1771 case FBIO_SETLINEWIDTH: /* set line length in pixel */
1772 if (!VESA_MODE(adp->va_mode))
1773 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1774 if (vesa_bios_set_line_length(*(u_int *)arg, &bytes, NULL))
1776 adp->va_line_width = bytes;
1778 printf("new line width:%d\n", adp->va_line_width);
1782 case FBIO_GETPALETTE: /* get color palette */
1783 if (get_palette(adp, ((video_color_palette_t *)arg)->index,
1784 ((video_color_palette_t *)arg)->count,
1785 ((video_color_palette_t *)arg)->red,
1786 ((video_color_palette_t *)arg)->green,
1787 ((video_color_palette_t *)arg)->blue,
1788 ((video_color_palette_t *)arg)->transparent))
1789 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1793 case FBIO_SETPALETTE: /* set color palette */
1794 if (set_palette(adp, ((video_color_palette_t *)arg)->index,
1795 ((video_color_palette_t *)arg)->count,
1796 ((video_color_palette_t *)arg)->red,
1797 ((video_color_palette_t *)arg)->green,
1798 ((video_color_palette_t *)arg)->blue,
1799 ((video_color_palette_t *)arg)->transparent))
1800 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1803 case FBIOGETCMAP: /* get color palette */
1804 if (get_palette(adp, ((struct fbcmap *)arg)->index,
1805 ((struct fbcmap *)arg)->count,
1806 ((struct fbcmap *)arg)->red,
1807 ((struct fbcmap *)arg)->green,
1808 ((struct fbcmap *)arg)->blue, NULL))
1809 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1812 case FBIOPUTCMAP: /* set color palette */
1813 if (set_palette(adp, ((struct fbcmap *)arg)->index,
1814 ((struct fbcmap *)arg)->count,
1815 ((struct fbcmap *)arg)->red,
1816 ((struct fbcmap *)arg)->green,
1817 ((struct fbcmap *)arg)->blue, NULL))
1818 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1822 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1827 vesa_diag(video_adapter_t *adp, int level)
1831 /* call the previous handler first */
1832 error = (*prevvidsw->diag)(adp, level);
1836 if (adp != vesa_adp)
1846 vesa_bios_info(int level)
1849 struct vesa_mode vmode;
1854 vers = vesa_adp_info->v_version;
1857 /* general adapter information */
1859 "VESA: v%d.%d, %dk memory, flags:0x%x, mode table:%p (%x)\n",
1860 (vers >> 12) * 10 + ((vers & 0x0f00) >> 8),
1861 ((vers & 0x00f0) >> 4) * 10 + (vers & 0x000f),
1862 vesa_adp_info->v_memsize * 64, vesa_adp_info->v_flags,
1863 vesa_vmodetab, vesa_adp_info->v_modetable);
1866 if (vesa_oemstr != NULL)
1867 printf("VESA: %s\n", vesa_oemstr);
1873 if (vers >= 0x0200 && bootverbose) {
1874 /* vender name, product name, product revision */
1875 printf("VESA: %s %s %s\n",
1876 (vesa_venderstr != NULL) ? vesa_venderstr : "unknown",
1877 (vesa_prodstr != NULL) ? vesa_prodstr : "unknown",
1878 (vesa_revstr != NULL) ? vesa_revstr : "?");
1882 /* mode information */
1884 (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1))
1885 && (vesa_vmodetab[i] != 0xffff); ++i) {
1886 if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode, M_NOWAIT))
1889 /* print something for diagnostic purpose */
1890 printf("VESA: mode:0x%03x, flags:0x%04x",
1891 vesa_vmodetab[i], vmode.v_modeattr);
1892 if (vmode.v_modeattr & V_MODEOPTINFO) {
1893 if (vmode.v_modeattr & V_MODEGRAPHICS) {
1894 printf(", G %dx%dx%d %d, ",
1895 vmode.v_width, vmode.v_height,
1896 vmode.v_bpp, vmode.v_planes);
1898 printf(", T %dx%d, ",
1899 vmode.v_width, vmode.v_height);
1901 printf("font:%dx%d, ",
1902 vmode.v_cwidth, vmode.v_cheight);
1903 printf("pages:%d, mem:%d",
1904 vmode.v_ipages + 1, vmode.v_memmodel);
1906 if (vmode.v_modeattr & V_MODELFB) {
1907 printf("\nVESA: LFB:0x%x, off:0x%x, off_size:0x%x",
1908 vmode.v_lfb, vmode.v_offscreen,
1909 vmode.v_offscreensize*1024);
1912 printf("VESA: window A:0x%x (%x), window B:0x%x (%x), ",
1913 vmode.v_waseg, vmode.v_waattr,
1914 vmode.v_wbseg, vmode.v_wbattr);
1915 printf("size:%dk, gran:%dk\n",
1916 vmode.v_wsize, vmode.v_wgran);
1918 #endif /* VESA_DEBUG > 1 */
1923 /* module loading */
1933 /* locate a VGA adapter */
1935 error = vesa_configure(0);
1938 vesa_bios_info(bootverbose);
1940 /* Don't return ENODEV, the upper layers will whine. */
1941 if (error == ENODEV) {
1954 /* The driver never initialized, so make it easy to unload. */
1955 if (vesa_adp == NULL)
1958 /* if the adapter is currently in a VESA mode, don't unload */
1959 if (VESA_MODE(vesa_adp->va_mode))
1962 * FIXME: if there is at least one vty which is in a VESA mode,
1963 * we shouldn't be unloading! XXX
1966 if ((error = vesa_unload_ioctl()) == 0) {
1967 if (vesa_adp != NULL) {
1968 if ((vesa_adp->va_flags & V_ADP_DAC8) != 0) {
1969 vesa_bios_set_dac(6);
1970 vesa_adp->va_flags &= ~V_ADP_DAC8;
1972 vesa_adp->va_flags &= ~V_ADP_VESA;
1973 vidsw[vesa_adp->va_index] = prevvidsw;
1983 vesa_mod_event(module_t mod, int type, void *data)
1988 return (vesa_load());
1990 return (vesa_unload());
1992 return (EOPNOTSUPP);
1995 static moduledata_t vesa_mod = {
2001 DECLARE_MODULE(vesa, vesa_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
2002 MODULE_DEPEND(vesa, x86bios, 1, 1, 1);
2004 #endif /* VGA_NO_MODE_CHANGE */