2 * Copyright (c) 1998 Kazutaka YOKOTA and Michael Smith
3 * Copyright (c) 2009-2013 Jung-uk Kim <jkim@FreeBSD.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer as
11 * the first lines of this file unmodified.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
34 #ifndef VGA_NO_MODE_CHANGE
36 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/kernel.h>
41 #include <sys/module.h>
42 #include <sys/malloc.h>
43 #include <sys/mutex.h>
45 #include <sys/sysctl.h>
48 #include <vm/vm_extern.h>
49 #include <vm/vm_kern.h>
50 #include <vm/vm_param.h>
53 #include <machine/pc/bios.h>
54 #include <dev/fb/vesa.h>
56 #include <dev/fb/fbreg.h>
57 #include <dev/fb/vgareg.h>
59 #include <dev/pci/pcivar.h>
61 #include <isa/isareg.h>
63 #include <compat/x86bios/x86bios.h>
65 #define VESA_BIOS_OFFSET 0xc0000
66 #define VESA_PALETTE_SIZE (256 * 4)
67 #define VESA_VIA_CLE266 "VIA CLE266\r\n"
73 /* VESA video adapter state buffer stub */
76 #define V_STATE_SIG 0x61736576
79 typedef struct adp_state adp_state_t;
81 static struct mtx vesa_lock;
83 static int vesa_state;
84 static void *vesa_state_buf;
85 static uint32_t vesa_state_buf_offs;
86 static size_t vesa_state_buf_size;
88 static u_char *vesa_palette;
89 static uint32_t vesa_palette_offs;
91 static void *vesa_vmem_buf;
92 static size_t vesa_vmem_max;
94 static void *vesa_bios;
95 static uint32_t vesa_bios_offs;
96 static uint32_t vesa_bios_int10;
97 static size_t vesa_bios_size;
99 /* VESA video adapter */
100 static video_adapter_t *vesa_adp;
102 static SYSCTL_NODE(_debug, OID_AUTO, vesa, CTLFLAG_RD, NULL, "VESA debugging");
103 static int vesa_shadow_rom;
104 SYSCTL_INT(_debug_vesa, OID_AUTO, shadow_rom, CTLFLAG_RDTUN, &vesa_shadow_rom,
105 0, "Enable video BIOS shadow");
109 static int vesa_nop(void);
111 static int vesa_error(void);
112 static vi_probe_t vesa_probe;
113 static vi_init_t vesa_init;
114 static vi_get_info_t vesa_get_info;
115 static vi_query_mode_t vesa_query_mode;
116 static vi_set_mode_t vesa_set_mode;
117 static vi_save_font_t vesa_save_font;
118 static vi_load_font_t vesa_load_font;
119 static vi_show_font_t vesa_show_font;
120 static vi_save_palette_t vesa_save_palette;
121 static vi_load_palette_t vesa_load_palette;
122 static vi_set_border_t vesa_set_border;
123 static vi_save_state_t vesa_save_state;
124 static vi_load_state_t vesa_load_state;
125 static vi_set_win_org_t vesa_set_origin;
126 static vi_read_hw_cursor_t vesa_read_hw_cursor;
127 static vi_set_hw_cursor_t vesa_set_hw_cursor;
128 static vi_set_hw_cursor_shape_t vesa_set_hw_cursor_shape;
129 static vi_blank_display_t vesa_blank_display;
130 static vi_mmap_t vesa_mmap;
131 static vi_ioctl_t vesa_ioctl;
132 static vi_clear_t vesa_clear;
133 static vi_fill_rect_t vesa_fill_rect;
134 static vi_bitblt_t vesa_bitblt;
135 static vi_diag_t vesa_diag;
136 static int vesa_bios_info(int level);
138 static video_switch_t vesavidsw = {
155 vesa_set_hw_cursor_shape,
167 static video_switch_t *prevvidsw;
169 /* VESA BIOS video modes */
170 #define VESA_MAXMODES 64
174 #define MODE_TABLE_DELTA 8
176 static int vesa_vmode_max;
177 static video_info_t *vesa_vmode;
179 static int vesa_init_done;
180 static struct vesa_info *vesa_adp_info;
181 static u_int16_t *vesa_vmodetab;
182 static char *vesa_oemstr;
183 static char *vesa_venderstr;
184 static char *vesa_prodstr;
185 static char *vesa_revstr;
187 /* local macros and functions */
188 #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff))
190 static int int10_set_mode(int mode);
191 static int vesa_bios_post(void);
192 static int vesa_bios_get_mode(int mode, struct vesa_mode *vmode, int flags);
193 static int vesa_bios_set_mode(int mode);
195 static int vesa_bios_get_dac(void);
197 static int vesa_bios_set_dac(int bits);
198 static int vesa_bios_save_palette(int start, int colors, u_char *palette,
200 static int vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g,
201 u_char *b, int bits);
202 static int vesa_bios_load_palette(int start, int colors, u_char *palette,
204 static int vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g,
205 u_char *b, int bits);
209 static size_t vesa_bios_state_buf_size(int);
210 static int vesa_bios_save_restore(int code, void *p);
211 #ifdef MODE_TABLE_BROKEN
212 static int vesa_bios_get_line_length(void);
214 static int vesa_bios_set_line_length(int pixel, int *bytes, int *lines);
216 static int vesa_bios_get_start(int *x, int *y);
218 static int vesa_bios_set_start(int x, int y);
219 static int vesa_map_gen_mode_num(int type, int color, int mode);
220 static int vesa_translate_flags(u_int16_t vflags);
221 static int vesa_translate_mmodel(u_int8_t vmodel);
222 static int vesa_get_bpscanline(struct vesa_mode *vmode);
223 static int vesa_bios_init(void);
224 static void vesa_bios_uninit(void);
225 static void vesa_clear_modes(video_info_t *info, int color);
228 static int vesa_get_origin(video_adapter_t *adp, off_t *offset);
231 /* INT 10 BIOS calls */
233 int10_set_mode(int mode)
237 x86bios_init_regs(®s);
240 x86bios_intr(®s, 0x10);
252 int count, i, is_pci;
254 if (x86bios_get_orm(vesa_bios_offs) == NULL)
260 /* Find the matching PCI video controller. */
261 dc = devclass_find("vgapci");
262 if (dc != NULL && devclass_get_devices(dc, &devs, &count) == 0) {
263 for (i = 0; i < count; i++)
264 if (device_get_flags(devs[i]) != 0 &&
265 x86bios_match_device(vesa_bios_offs, devs[i])) {
273 /* Try VGA if a PCI device is not found. */
275 dc = devclass_find(VGA_DRIVER_NAME);
277 dev = devclass_get_device(dc, 0);
281 printf("%s: calling BIOS POST\n",
282 dev == NULL ? "VESA" : device_get_nameunit(dev));
284 x86bios_init_regs(®s);
286 regs.R_AH = pci_get_bus(dev);
287 regs.R_AL = (pci_get_slot(dev) << 3) |
288 (pci_get_function(dev) & 0x07);
291 x86bios_call(®s, X86BIOS_PHYSTOSEG(vesa_bios_offs + 3),
292 X86BIOS_PHYSTOOFF(vesa_bios_offs + 3));
294 if (x86bios_get_intr(0x10) == 0)
300 /* VESA BIOS calls */
302 vesa_bios_get_mode(int mode, struct vesa_mode *vmode, int flags)
308 buf = x86bios_alloc(&offs, sizeof(*vmode), flags);
312 x86bios_init_regs(®s);
316 regs.R_ES = X86BIOS_PHYSTOSEG(offs);
317 regs.R_DI = X86BIOS_PHYSTOOFF(offs);
319 x86bios_intr(®s, 0x10);
321 if (regs.R_AX != 0x004f) {
322 x86bios_free(buf, sizeof(*vmode));
326 bcopy(buf, vmode, sizeof(*vmode));
327 x86bios_free(buf, sizeof(*vmode));
333 vesa_bios_set_mode(int mode)
337 x86bios_init_regs(®s);
341 x86bios_intr(®s, 0x10);
343 return (regs.R_AX != 0x004f);
348 vesa_bios_get_dac(void)
352 x86bios_init_regs(®s);
356 x86bios_intr(®s, 0x10);
358 if (regs.R_AX != 0x004f)
366 vesa_bios_set_dac(int bits)
370 x86bios_init_regs(®s);
375 x86bios_intr(®s, 0x10);
377 if (regs.R_AX != 0x004f)
384 vesa_bios_save_palette(int start, int colors, u_char *palette, int bits)
389 x86bios_init_regs(®s);
395 regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs);
396 regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs);
399 mtx_lock(&vesa_lock);
400 x86bios_intr(®s, 0x10);
401 if (regs.R_AX != 0x004f) {
402 mtx_unlock(&vesa_lock);
405 for (i = 0; i < colors; ++i) {
406 palette[i * 3] = vesa_palette[i * 4 + 2] << bits;
407 palette[i * 3 + 1] = vesa_palette[i * 4 + 1] << bits;
408 palette[i * 3 + 2] = vesa_palette[i * 4] << bits;
410 mtx_unlock(&vesa_lock);
416 vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, u_char *b,
422 x86bios_init_regs(®s);
428 regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs);
429 regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs);
432 mtx_lock(&vesa_lock);
433 x86bios_intr(®s, 0x10);
434 if (regs.R_AX != 0x004f) {
435 mtx_unlock(&vesa_lock);
438 for (i = 0; i < colors; ++i) {
439 r[i] = vesa_palette[i * 4 + 2] << bits;
440 g[i] = vesa_palette[i * 4 + 1] << bits;
441 b[i] = vesa_palette[i * 4] << bits;
443 mtx_unlock(&vesa_lock);
449 vesa_bios_load_palette(int start, int colors, u_char *palette, int bits)
454 x86bios_init_regs(®s);
460 regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs);
461 regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs);
464 mtx_lock(&vesa_lock);
465 for (i = 0; i < colors; ++i) {
466 vesa_palette[i * 4] = palette[i * 3 + 2] >> bits;
467 vesa_palette[i * 4 + 1] = palette[i * 3 + 1] >> bits;
468 vesa_palette[i * 4 + 2] = palette[i * 3] >> bits;
469 vesa_palette[i * 4 + 3] = 0;
471 x86bios_intr(®s, 0x10);
472 mtx_unlock(&vesa_lock);
474 return (regs.R_AX != 0x004f);
478 vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, u_char *b,
484 x86bios_init_regs(®s);
490 regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs);
491 regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs);
494 mtx_lock(&vesa_lock);
495 for (i = 0; i < colors; ++i) {
496 vesa_palette[i * 4] = b[i] >> bits;
497 vesa_palette[i * 4 + 1] = g[i] >> bits;
498 vesa_palette[i * 4 + 2] = r[i] >> bits;
499 vesa_palette[i * 4 + 3] = 0;
501 x86bios_intr(®s, 0x10);
502 mtx_unlock(&vesa_lock);
504 return (regs.R_AX != 0x004f);
508 vesa_bios_state_buf_size(int state)
512 x86bios_init_regs(®s);
514 /* regs.R_DL = STATE_SIZE; */
517 x86bios_intr(®s, 0x10);
519 if (regs.R_AX != 0x004f)
522 return (regs.R_BX * 64);
526 vesa_bios_save_restore(int code, void *p)
530 if (code != STATE_SAVE && code != STATE_LOAD)
533 x86bios_init_regs(®s);
536 regs.R_CX = vesa_state;
538 regs.R_ES = X86BIOS_PHYSTOSEG(vesa_state_buf_offs);
539 regs.R_BX = X86BIOS_PHYSTOOFF(vesa_state_buf_offs);
541 mtx_lock(&vesa_lock);
544 x86bios_intr(®s, 0x10);
545 if (regs.R_AX == 0x004f)
546 bcopy(vesa_state_buf, p, vesa_state_buf_size);
549 bcopy(p, vesa_state_buf, vesa_state_buf_size);
550 x86bios_intr(®s, 0x10);
553 mtx_unlock(&vesa_lock);
555 return (regs.R_AX != 0x004f);
558 #ifdef MODE_TABLE_BROKEN
560 vesa_bios_get_line_length(void)
564 x86bios_init_regs(®s);
568 x86bios_intr(®s, 0x10);
570 if (regs.R_AX != 0x004f)
578 vesa_bios_set_line_length(int pixel, int *bytes, int *lines)
582 x86bios_init_regs(®s);
587 x86bios_intr(®s, 0x10);
590 printf("bx:%d, cx:%d, dx:%d\n", regs.R_BX, regs.R_CX, regs.R_DX);
592 if (regs.R_AX != 0x004f)
605 vesa_bios_get_start(int *x, int *y)
609 x86bios_init_regs(®s);
613 x86bios_intr(®s, 0x10);
615 if (regs.R_AX != 0x004f)
626 vesa_bios_set_start(int x, int y)
630 x86bios_init_regs(®s);
636 x86bios_intr(®s, 0x10);
638 return (regs.R_AX != 0x004f);
641 /* map a generic video mode to a known mode */
643 vesa_map_gen_mode_num(int type, int color, int mode)
649 { M_TEXT_132x25, M_VESA_C132x25 },
650 { M_TEXT_132x43, M_VESA_C132x43 },
651 { M_TEXT_132x50, M_VESA_C132x50 },
652 { M_TEXT_132x60, M_VESA_C132x60 },
656 for (i = 0; i < nitems(mode_map); ++i) {
657 if (mode_map[i].from == mode)
658 return (mode_map[i].to);
664 vesa_translate_flags(u_int16_t vflags)
671 { V_MODECOLOR, V_INFO_COLOR, 0 },
672 { V_MODEGRAPHICS, V_INFO_GRAPHICS, 0 },
673 { V_MODELFB, V_INFO_LINEAR, 0 },
674 { V_MODENONVGA, V_INFO_NONVGA, 0 },
679 for (flags = 0, i = 0; i < nitems(ftable); ++i) {
680 flags |= (vflags & ftable[i].mask) ?
681 ftable[i].set : ftable[i].reset;
687 vesa_translate_mmodel(u_int8_t vmodel)
693 { V_MMTEXT, V_INFO_MM_TEXT },
694 { V_MMCGA, V_INFO_MM_CGA },
695 { V_MMHGC, V_INFO_MM_HGC },
696 { V_MMEGA, V_INFO_MM_PLANAR },
697 { V_MMPACKED, V_INFO_MM_PACKED },
698 { V_MMDIRCOLOR, V_INFO_MM_DIRECT },
702 for (i = 0; mtable[i].mmodel >= 0; ++i) {
703 if (mtable[i].vmodel == vmodel)
704 return (mtable[i].mmodel);
706 return (V_INFO_MM_OTHER);
710 vesa_get_bpscanline(struct vesa_mode *vmode)
714 if ((vmode->v_modeattr & V_MODEGRAPHICS) != 0) {
715 /* Find the minimum length. */
716 switch (vmode->v_bpp / vmode->v_planes) {
718 bpsl = vmode->v_width / 8;
721 bpsl = vmode->v_width / 4;
724 bpsl = vmode->v_width / 2;
727 bpsl = vmode->v_width * ((vmode->v_bpp + 7) / 8);
728 bpsl /= vmode->v_planes;
732 /* Use VBE 3.0 information if it looks sane. */
733 if ((vmode->v_modeattr & V_MODELFB) != 0 &&
734 vesa_adp_info->v_version >= 0x0300 &&
735 vmode->v_linbpscanline > bpsl)
736 return (vmode->v_linbpscanline);
738 /* Return the minimum if the mode table looks absurd. */
739 if (vmode->v_bpscanline < bpsl)
743 return (vmode->v_bpscanline);
746 #define VESA_MAXSTR 256
748 #define VESA_STRCPY(dst, src) do { \
751 dst = malloc(VESA_MAXSTR, M_DEVBUF, M_WAITOK); \
752 str = x86bios_offset(BIOS_SADDRTOLADDR(src)); \
753 for (i = 0; i < VESA_MAXSTR - 1 && str[i] != '\0'; i++) \
761 struct vesa_mode vmode;
762 struct vesa_info *buf;
778 vesa_bios_offs = VESA_BIOS_OFFSET;
781 * If the VBE real mode interrupt vector is not found, try BIOS POST.
783 vesa_bios_int10 = x86bios_get_intr(0x10);
784 if (vesa_bios_int10 == 0) {
785 if (vesa_bios_post() != 0)
787 vesa_bios_int10 = x86bios_get_intr(0x10);
788 if (vesa_bios_int10 == 0)
795 offs = vesa_bios_int10;
796 if (vesa_shadow_rom) {
797 vbios = x86bios_get_orm(vesa_bios_offs);
799 vesa_bios_size = vbios[2] * 512;
800 if (((VESA_BIOS_OFFSET << 12) & 0xffff0000) ==
801 (vesa_bios_int10 & 0xffff0000) &&
802 vesa_bios_size > (vesa_bios_int10 & 0xffff)) {
803 vesa_bios = x86bios_alloc(&vesa_bios_offs,
804 vesa_bios_size, M_WAITOK);
805 bcopy(vbios, vesa_bios, vesa_bios_size);
806 offs = ((vesa_bios_offs << 12) & 0xffff0000) +
807 (vesa_bios_int10 & 0xffff);
808 x86bios_set_intr(0x10, offs);
811 if (vesa_bios == NULL)
812 printf("VESA: failed to shadow video ROM\n");
815 printf("VESA: INT 0x10 vector 0x%04x:0x%04x\n",
816 (offs >> 16) & 0xffff, offs & 0xffff);
818 x86bios_init_regs(®s);
821 vmbuf = x86bios_alloc(&offs, sizeof(*buf), M_WAITOK);
823 regs.R_ES = X86BIOS_PHYSTOSEG(offs);
824 regs.R_DI = X86BIOS_PHYSTOOFF(offs);
826 bcopy("VBE2", vmbuf, 4); /* try for VBE2 data */
827 x86bios_intr(®s, 0x10);
829 if (regs.R_AX != 0x004f || bcmp("VESA", vmbuf, 4) != 0)
832 vesa_adp_info = buf = malloc(sizeof(*buf), M_DEVBUF, M_WAITOK);
833 bcopy(vmbuf, buf, sizeof(*buf));
836 printf("VESA: information block\n");
837 hexdump(buf, sizeof(*buf), NULL, HD_OMIT_CHARS);
840 vers = buf->v_version = le16toh(buf->v_version);
841 buf->v_oemstr = le32toh(buf->v_oemstr);
842 buf->v_flags = le32toh(buf->v_flags);
843 buf->v_modetable = le32toh(buf->v_modetable);
844 buf->v_memsize = le16toh(buf->v_memsize);
845 buf->v_revision = le16toh(buf->v_revision);
846 buf->v_venderstr = le32toh(buf->v_venderstr);
847 buf->v_prodstr = le32toh(buf->v_prodstr);
848 buf->v_revstr = le32toh(buf->v_revstr);
851 printf("VESA: VBE version %d.%d is not supported; "
852 "version 1.2 or later is required.\n",
853 ((vers & 0xf000) >> 12) * 10 + ((vers & 0x0f00) >> 8),
854 ((vers & 0x00f0) >> 4) * 10 + (vers & 0x000f));
858 VESA_STRCPY(vesa_oemstr, buf->v_oemstr);
859 if (vers >= 0x0200) {
860 VESA_STRCPY(vesa_venderstr, buf->v_venderstr);
861 VESA_STRCPY(vesa_prodstr, buf->v_prodstr);
862 VESA_STRCPY(vesa_revstr, buf->v_revstr);
864 is_via_cle266 = strncmp(vesa_oemstr, VESA_VIA_CLE266,
865 sizeof(VESA_VIA_CLE266)) == 0;
867 if (buf->v_modetable == 0)
870 msize = (size_t)buf->v_memsize * 64 * 1024;
872 vesa_vmodetab = x86bios_offset(BIOS_SADDRTOLADDR(buf->v_modetable));
874 for (i = 0, modes = 0; (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1)) &&
875 (vesa_vmodetab[i] != 0xffff); ++i) {
876 vesa_vmodetab[i] = le16toh(vesa_vmodetab[i]);
877 if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode, M_WAITOK))
880 vmode.v_modeattr = le16toh(vmode.v_modeattr);
881 vmode.v_wgran = le16toh(vmode.v_wgran);
882 vmode.v_wsize = le16toh(vmode.v_wsize);
883 vmode.v_waseg = le16toh(vmode.v_waseg);
884 vmode.v_wbseg = le16toh(vmode.v_wbseg);
885 vmode.v_posfunc = le32toh(vmode.v_posfunc);
886 vmode.v_bpscanline = le16toh(vmode.v_bpscanline);
887 vmode.v_width = le16toh(vmode.v_width);
888 vmode.v_height = le16toh(vmode.v_height);
889 vmode.v_lfb = le32toh(vmode.v_lfb);
890 vmode.v_offscreen = le32toh(vmode.v_offscreen);
891 vmode.v_offscreensize = le16toh(vmode.v_offscreensize);
892 vmode.v_linbpscanline = le16toh(vmode.v_linbpscanline);
893 vmode.v_maxpixelclock = le32toh(vmode.v_maxpixelclock);
895 /* reject unsupported modes */
897 if ((vmode.v_modeattr &
898 (V_MODESUPP | V_MODEOPTINFO | V_MODENONVGA)) !=
899 (V_MODESUPP | V_MODEOPTINFO))
902 if ((vmode.v_modeattr & V_MODEOPTINFO) == 0) {
904 printf("Rejecting VESA %s mode: %d x %d x %d bpp "
906 vmode.v_modeattr & V_MODEGRAPHICS ?
908 vmode.v_width, vmode.v_height, vmode.v_bpp,
915 bsize = vesa_get_bpscanline(&vmode) * vmode.v_height;
916 if ((vmode.v_modeattr & V_MODEGRAPHICS) != 0)
917 bsize *= vmode.v_planes;
919 /* Does it have enough memory to support this mode? */
922 printf("Rejecting VESA %s mode: %d x %d x %d bpp "
923 " attr = %x, not enough memory\n",
924 vmode.v_modeattr & V_MODEGRAPHICS ?
926 vmode.v_width, vmode.v_height, vmode.v_bpp,
931 if (bsize > vesa_vmem_max)
932 vesa_vmem_max = bsize;
934 /* expand the array if necessary */
935 if (modes >= vesa_vmode_max) {
936 vesa_vmode_max += MODE_TABLE_DELTA;
937 p = malloc(sizeof(*vesa_vmode) * (vesa_vmode_max + 1),
940 printf("vesa_bios_init(): modes:%d, vesa_mode_max:%d\n",
941 modes, vesa_vmode_max);
944 bcopy(vesa_vmode, p, sizeof(*vesa_vmode)*modes);
945 free(vesa_vmode, M_DEVBUF);
951 printf("Found VESA %s mode: %d x %d x %d bpp\n",
952 vmode.v_modeattr & V_MODEGRAPHICS ? "graphics" : "text",
953 vmode.v_width, vmode.v_height, vmode.v_bpp);
956 if ((vmode.v_width & 0xff00) >> 8 == vmode.v_height - 1) {
957 vmode.v_width &= 0xff;
958 vmode.v_waseg = 0xb8000 >> 4;
962 /* copy some fields */
963 bzero(&vesa_vmode[modes], sizeof(vesa_vmode[modes]));
964 vesa_vmode[modes].vi_mode = vesa_vmodetab[i];
965 vesa_vmode[modes].vi_width = vmode.v_width;
966 vesa_vmode[modes].vi_height = vmode.v_height;
967 vesa_vmode[modes].vi_depth = vmode.v_bpp;
968 vesa_vmode[modes].vi_planes = vmode.v_planes;
969 vesa_vmode[modes].vi_cwidth = vmode.v_cwidth;
970 vesa_vmode[modes].vi_cheight = vmode.v_cheight;
971 vesa_vmode[modes].vi_window = (vm_offset_t)vmode.v_waseg << 4;
973 vesa_vmode[modes].vi_window_size = vmode.v_wsize * 1024;
974 vesa_vmode[modes].vi_window_gran = vmode.v_wgran * 1024;
975 if (vmode.v_modeattr & V_MODELFB)
976 vesa_vmode[modes].vi_buffer = vmode.v_lfb;
977 vesa_vmode[modes].vi_buffer_size = bsize;
978 vesa_vmode[modes].vi_mem_model =
979 vesa_translate_mmodel(vmode.v_memmodel);
980 switch (vesa_vmode[modes].vi_mem_model) {
981 case V_INFO_MM_DIRECT:
982 if ((vmode.v_modeattr & V_MODELFB) != 0 &&
984 vesa_vmode[modes].vi_pixel_fields[0] =
985 vmode.v_linredfieldpos;
986 vesa_vmode[modes].vi_pixel_fields[1] =
987 vmode.v_lingreenfieldpos;
988 vesa_vmode[modes].vi_pixel_fields[2] =
989 vmode.v_linbluefieldpos;
990 vesa_vmode[modes].vi_pixel_fields[3] =
991 vmode.v_linresfieldpos;
992 vesa_vmode[modes].vi_pixel_fsizes[0] =
993 vmode.v_linredmasksize;
994 vesa_vmode[modes].vi_pixel_fsizes[1] =
995 vmode.v_lingreenmasksize;
996 vesa_vmode[modes].vi_pixel_fsizes[2] =
997 vmode.v_linbluemasksize;
998 vesa_vmode[modes].vi_pixel_fsizes[3] =
999 vmode.v_linresmasksize;
1001 vesa_vmode[modes].vi_pixel_fields[0] =
1002 vmode.v_redfieldpos;
1003 vesa_vmode[modes].vi_pixel_fields[1] =
1004 vmode.v_greenfieldpos;
1005 vesa_vmode[modes].vi_pixel_fields[2] =
1006 vmode.v_bluefieldpos;
1007 vesa_vmode[modes].vi_pixel_fields[3] =
1008 vmode.v_resfieldpos;
1009 vesa_vmode[modes].vi_pixel_fsizes[0] =
1010 vmode.v_redmasksize;
1011 vesa_vmode[modes].vi_pixel_fsizes[1] =
1012 vmode.v_greenmasksize;
1013 vesa_vmode[modes].vi_pixel_fsizes[2] =
1014 vmode.v_bluemasksize;
1015 vesa_vmode[modes].vi_pixel_fsizes[3] =
1016 vmode.v_resmasksize;
1019 case V_INFO_MM_PACKED:
1020 vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7) / 8;
1023 vesa_vmode[modes].vi_flags =
1024 vesa_translate_flags(vmode.v_modeattr) | V_INFO_VESA;
1028 vesa_vmode[modes].vi_mode = EOT;
1031 printf("VESA: %d mode(s) found\n", modes);
1036 x86bios_free(vmbuf, sizeof(*buf));
1038 /* Probe supported save/restore states. */
1039 for (i = 0; i < 4; i++)
1040 if (vesa_bios_state_buf_size(1 << i) > 0)
1041 vesa_state |= 1 << i;
1042 if (vesa_state != 0)
1043 vesa_state_buf_size = vesa_bios_state_buf_size(vesa_state);
1044 vesa_palette = x86bios_alloc(&vesa_palette_offs,
1045 VESA_PALETTE_SIZE + vesa_state_buf_size, M_WAITOK);
1046 if (vesa_state_buf_size > 0) {
1047 vesa_state_buf = vesa_palette + VESA_PALETTE_SIZE;
1048 vesa_state_buf_offs = vesa_palette_offs + VESA_PALETTE_SIZE;
1054 x86bios_free(vmbuf, sizeof(buf));
1060 vesa_bios_uninit(void)
1063 if (vesa_bios != NULL) {
1064 x86bios_set_intr(0x10, vesa_bios_int10);
1065 vesa_bios_offs = VESA_BIOS_OFFSET;
1066 x86bios_free(vesa_bios, vesa_bios_size);
1069 if (vesa_adp_info != NULL) {
1070 free(vesa_adp_info, M_DEVBUF);
1071 vesa_adp_info = NULL;
1073 if (vesa_oemstr != NULL) {
1074 free(vesa_oemstr, M_DEVBUF);
1077 if (vesa_venderstr != NULL) {
1078 free(vesa_venderstr, M_DEVBUF);
1079 vesa_venderstr = NULL;
1081 if (vesa_prodstr != NULL) {
1082 free(vesa_prodstr, M_DEVBUF);
1083 vesa_prodstr = NULL;
1085 if (vesa_revstr != NULL) {
1086 free(vesa_revstr, M_DEVBUF);
1089 if (vesa_vmode != NULL) {
1090 free(vesa_vmode, M_DEVBUF);
1093 if (vesa_palette != NULL) {
1094 x86bios_free(vesa_palette,
1095 VESA_PALETTE_SIZE + vesa_state_buf_size);
1096 vesa_palette = NULL;
1101 vesa_clear_modes(video_info_t *info, int color)
1103 while (info->vi_mode != EOT) {
1104 if ((info->vi_flags & V_INFO_COLOR) != color)
1113 vesa_configure(int flags)
1115 video_adapter_t *adp;
1122 if (flags & VIO_PROBE_ONLY)
1126 * If the VESA module has already been loaded, abort loading
1127 * the module this time.
1129 for (i = 0; (adp = vid_get_adapter(i)) != NULL; ++i) {
1130 if (adp->va_flags & V_ADP_VESA)
1132 if (adp->va_type == KD_VGA)
1137 * The VGA adapter is not found. This is because either
1138 * 1) the VGA driver has not been initialized, or 2) the VGA card
1139 * is not present. If 1) is the case, we shall defer
1140 * initialization for now and try again later.
1143 vga_sub_configure = vesa_configure;
1147 /* count number of registered adapters */
1148 for (++i; vid_get_adapter(i) != NULL; ++i)
1152 /* call VESA BIOS */
1154 if (vesa_bios_init()) {
1158 vesa_adp->va_flags |= V_ADP_VESA;
1160 /* remove conflicting modes if we have more than one adapter */
1162 vesa_clear_modes(vesa_vmode,
1163 (vesa_adp->va_flags & V_ADP_COLOR) ?
1167 if ((error = vesa_load_ioctl()) == 0) {
1168 prevvidsw = vidsw[vesa_adp->va_index];
1169 vidsw[vesa_adp->va_index] = &vesavidsw;
1170 vesa_init_done = TRUE;
1196 vesa_probe(int unit, video_adapter_t **adpp, void *arg, int flags)
1199 return ((*prevvidsw->probe)(unit, adpp, arg, flags));
1203 vesa_init(int unit, video_adapter_t *adp, int flags)
1206 return ((*prevvidsw->init)(unit, adp, flags));
1210 vesa_get_info(video_adapter_t *adp, int mode, video_info_t *info)
1214 if ((*prevvidsw->get_info)(adp, mode, info) == 0)
1217 if (adp != vesa_adp)
1220 mode = vesa_map_gen_mode_num(vesa_adp->va_type,
1221 vesa_adp->va_flags & V_ADP_COLOR, mode);
1222 for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) {
1223 if (vesa_vmode[i].vi_mode == NA)
1225 if (vesa_vmode[i].vi_mode == mode) {
1226 *info = vesa_vmode[i];
1234 vesa_query_mode(video_adapter_t *adp, video_info_t *info)
1238 if ((*prevvidsw->query_mode)(adp, info) == 0)
1240 if (adp != vesa_adp)
1243 for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) {
1244 if ((info->vi_width != 0)
1245 && (info->vi_width != vesa_vmode[i].vi_width))
1247 if ((info->vi_height != 0)
1248 && (info->vi_height != vesa_vmode[i].vi_height))
1250 if ((info->vi_cwidth != 0)
1251 && (info->vi_cwidth != vesa_vmode[i].vi_cwidth))
1253 if ((info->vi_cheight != 0)
1254 && (info->vi_cheight != vesa_vmode[i].vi_cheight))
1256 if ((info->vi_depth != 0)
1257 && (info->vi_depth != vesa_vmode[i].vi_depth))
1259 if ((info->vi_planes != 0)
1260 && (info->vi_planes != vesa_vmode[i].vi_planes))
1262 /* pixel format, memory model */
1263 if ((info->vi_flags != 0)
1264 && (info->vi_flags != vesa_vmode[i].vi_flags))
1266 *info = vesa_vmode[i];
1273 vesa_set_mode(video_adapter_t *adp, int mode)
1277 if (adp != vesa_adp)
1278 return ((*prevvidsw->set_mode)(adp, mode));
1280 mode = vesa_map_gen_mode_num(adp->va_type,
1281 adp->va_flags & V_ADP_COLOR, mode);
1283 printf("VESA: set_mode(): %d(%x) -> %d(%x)\n",
1284 adp->va_mode, adp->va_mode, mode, mode);
1287 * If the current mode is a VESA mode and the new mode is not,
1288 * restore the state of the adapter first by setting one of the
1289 * standard VGA mode, so that non-standard, extended SVGA registers
1290 * are set to the state compatible with the standard VGA modes.
1291 * Otherwise (*prevvidsw->set_mode)() may not be able to set up
1292 * the new mode correctly.
1294 if (VESA_MODE(adp->va_mode)) {
1295 if (!VESA_MODE(mode) &&
1296 (*prevvidsw->get_info)(adp, mode, &info) == 0) {
1297 if ((adp->va_flags & V_ADP_DAC8) != 0) {
1298 vesa_bios_set_dac(6);
1299 adp->va_flags &= ~V_ADP_DAC8;
1301 int10_set_mode(adp->va_initial_bios_mode);
1302 if (adp->va_info.vi_flags & V_INFO_LINEAR)
1303 pmap_unmapdev(adp->va_buffer, vesa_vmem_max);
1305 * Once (*prevvidsw->get_info)() succeeded,
1306 * (*prevvidsw->set_mode)() below won't fail...
1311 /* we may not need to handle this mode after all... */
1312 if (!VESA_MODE(mode) && (*prevvidsw->set_mode)(adp, mode) == 0)
1315 /* is the new mode supported? */
1316 if (vesa_get_info(adp, mode, &info))
1318 /* assert(VESA_MODE(mode)); */
1321 printf("VESA: about to set a VESA mode...\n");
1323 /* don't use the linear frame buffer for text modes. XXX */
1324 if (!(info.vi_flags & V_INFO_GRAPHICS))
1325 info.vi_flags &= ~V_INFO_LINEAR;
1327 if ((info.vi_flags & V_INFO_LINEAR) != 0)
1329 if (vesa_bios_set_mode(mode | 0x8000))
1332 /* Palette format is reset by the above VBE function call. */
1333 adp->va_flags &= ~V_ADP_DAC8;
1335 if ((vesa_adp_info->v_flags & V_DAC8) != 0 &&
1336 (info.vi_flags & V_INFO_GRAPHICS) != 0 &&
1337 vesa_bios_set_dac(8) > 6)
1338 adp->va_flags |= V_ADP_DAC8;
1340 if (adp->va_info.vi_flags & V_INFO_LINEAR)
1341 pmap_unmapdev(adp->va_buffer, vesa_vmem_max);
1344 printf("VESA: mode set!\n");
1346 vesa_adp->va_mode = mode & 0x1ff; /* Mode number is 9-bit. */
1347 vesa_adp->va_flags &= ~V_ADP_COLOR;
1348 vesa_adp->va_flags |=
1349 (info.vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0;
1350 vesa_adp->va_crtc_addr =
1351 (vesa_adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC;
1353 vesa_adp->va_line_width = info.vi_buffer_size / info.vi_height;
1354 if ((info.vi_flags & V_INFO_GRAPHICS) != 0)
1355 vesa_adp->va_line_width /= info.vi_planes;
1357 #ifdef MODE_TABLE_BROKEN
1358 /* If VBE function returns bigger bytes per scan line, use it. */
1360 int bpsl = vesa_bios_get_line_length();
1361 if (bpsl > vesa_adp->va_line_width) {
1362 vesa_adp->va_line_width = bpsl;
1363 info.vi_buffer_size = bpsl * info.vi_height;
1364 if ((info.vi_flags & V_INFO_GRAPHICS) != 0)
1365 info.vi_buffer_size *= info.vi_planes;
1370 if (info.vi_flags & V_INFO_LINEAR) {
1372 printf("VESA: setting up LFB\n");
1374 vesa_adp->va_buffer =
1375 (vm_offset_t)pmap_mapdev_attr(info.vi_buffer,
1376 vesa_vmem_max, PAT_WRITE_COMBINING);
1377 vesa_adp->va_window = vesa_adp->va_buffer;
1378 vesa_adp->va_window_size = info.vi_buffer_size / info.vi_planes;
1379 vesa_adp->va_window_gran = info.vi_buffer_size / info.vi_planes;
1381 vesa_adp->va_buffer = 0;
1382 vesa_adp->va_window = (vm_offset_t)x86bios_offset(info.vi_window);
1383 vesa_adp->va_window_size = info.vi_window_size;
1384 vesa_adp->va_window_gran = info.vi_window_gran;
1386 vesa_adp->va_buffer_size = info.vi_buffer_size;
1387 vesa_adp->va_window_orig = 0;
1388 vesa_adp->va_disp_start.x = 0;
1389 vesa_adp->va_disp_start.y = 0;
1391 printf("vesa_set_mode(): vi_width:%d, line_width:%d\n",
1392 info.vi_width, vesa_adp->va_line_width);
1394 bcopy(&info, &vesa_adp->va_info, sizeof(vesa_adp->va_info));
1396 /* move hardware cursor out of the way */
1397 (*vidsw[vesa_adp->va_index]->set_hw_cursor)(vesa_adp, -1, -1);
1403 vesa_save_font(video_adapter_t *adp, int page, int fontsize, int fontwidth,
1404 u_char *data, int ch, int count)
1407 return ((*prevvidsw->save_font)(adp, page, fontsize, fontwidth, data,
1412 vesa_load_font(video_adapter_t *adp, int page, int fontsize, int fontwidth,
1413 u_char *data, int ch, int count)
1416 return ((*prevvidsw->load_font)(adp, page, fontsize, fontwidth, data,
1421 vesa_show_font(video_adapter_t *adp, int page)
1424 return ((*prevvidsw->show_font)(adp, page));
1428 vesa_save_palette(video_adapter_t *adp, u_char *palette)
1432 if (adp == vesa_adp && VESA_MODE(adp->va_mode)) {
1433 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6;
1434 if (vesa_bios_save_palette(0, 256, palette, bits) == 0)
1438 return ((*prevvidsw->save_palette)(adp, palette));
1442 vesa_load_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_load_palette(0, 256, palette, bits) == 0)
1452 return ((*prevvidsw->load_palette)(adp, palette));
1456 vesa_set_border(video_adapter_t *adp, int color)
1459 return ((*prevvidsw->set_border)(adp, color));
1463 vesa_save_state(video_adapter_t *adp, void *p, size_t size)
1468 if (adp != vesa_adp || (size == 0 && vesa_state_buf_size == 0))
1469 return ((*prevvidsw->save_state)(adp, p, size));
1471 bsize = offsetof(adp_state_t, regs) + vesa_state_buf_size;
1474 if (vesa_state_buf_size > 0 && size < bsize)
1477 if (vesa_vmem_buf != NULL) {
1478 free(vesa_vmem_buf, M_DEVBUF);
1479 vesa_vmem_buf = NULL;
1481 if (VESA_MODE(adp->va_mode)) {
1482 buf = (void *)adp->va_buffer;
1484 bsize = adp->va_buffer_size;
1485 vesa_vmem_buf = malloc(bsize, M_DEVBUF, M_NOWAIT);
1486 if (vesa_vmem_buf != NULL)
1487 bcopy(buf, vesa_vmem_buf, bsize);
1490 if (vesa_state_buf_size == 0)
1491 return ((*prevvidsw->save_state)(adp, p, size));
1492 ((adp_state_t *)p)->sig = V_STATE_SIG;
1493 return (vesa_bios_save_restore(STATE_SAVE, ((adp_state_t *)p)->regs));
1497 vesa_load_state(video_adapter_t *adp, void *p)
1503 if (adp != vesa_adp)
1504 return ((*prevvidsw->load_state)(adp, p));
1506 /* Try BIOS POST to restore a sane state. */
1507 (void)vesa_bios_post();
1508 bsize = adp->va_buffer_size;
1509 mode = adp->va_mode;
1510 error = vesa_set_mode(adp, adp->va_initial_mode);
1511 if (mode != adp->va_initial_mode)
1512 error = vesa_set_mode(adp, mode);
1514 if (vesa_vmem_buf != NULL) {
1515 if (error == 0 && VESA_MODE(mode)) {
1516 buf = (void *)adp->va_buffer;
1518 bcopy(vesa_vmem_buf, buf, bsize);
1520 free(vesa_vmem_buf, M_DEVBUF);
1521 vesa_vmem_buf = NULL;
1523 if (((adp_state_t *)p)->sig != V_STATE_SIG)
1524 return ((*prevvidsw->load_state)(adp, p));
1525 return (vesa_bios_save_restore(STATE_LOAD, ((adp_state_t *)p)->regs));
1530 vesa_get_origin(video_adapter_t *adp, off_t *offset)
1534 x86bios_init_regs(®s);
1538 x86bios_intr(®s, 0x10);
1540 if (regs.R_AX != 0x004f)
1542 *offset = regs.DX * adp->va_window_gran;
1549 vesa_set_origin(video_adapter_t *adp, off_t offset)
1554 * This function should return as quickly as possible to
1555 * maintain good performance of the system. For this reason,
1556 * error checking is kept minimal and let the VESA BIOS to
1559 if (adp != vesa_adp)
1560 return ((*prevvidsw->set_win_org)(adp, offset));
1562 /* if this is a linear frame buffer, do nothing */
1563 if (adp->va_info.vi_flags & V_INFO_LINEAR)
1566 if (adp->va_window_gran == 0)
1569 x86bios_init_regs(®s);
1571 regs.R_DX = offset / adp->va_window_gran;
1573 x86bios_intr(®s, 0x10);
1575 if (regs.R_AX != 0x004f)
1578 x86bios_init_regs(®s);
1581 regs.R_DX = offset / adp->va_window_gran;
1582 x86bios_intr(®s, 0x10);
1584 adp->va_window_orig = (offset/adp->va_window_gran)*adp->va_window_gran;
1585 return (0); /* XXX */
1589 vesa_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
1592 return ((*prevvidsw->read_hw_cursor)(adp, col, row));
1596 vesa_set_hw_cursor(video_adapter_t *adp, int col, int row)
1599 return ((*prevvidsw->set_hw_cursor)(adp, col, row));
1603 vesa_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
1604 int celsize, int blink)
1607 return ((*prevvidsw->set_hw_cursor_shape)(adp, base, height, celsize,
1612 vesa_blank_display(video_adapter_t *adp, int mode)
1615 /* XXX: use VESA DPMS */
1616 return ((*prevvidsw->blank_display)(adp, mode));
1620 vesa_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
1621 int prot, vm_memattr_t *memattr)
1625 printf("vesa_mmap(): window:0x%tx, buffer:0x%tx, offset:0x%jx\n",
1626 adp->va_info.vi_window, adp->va_info.vi_buffer, offset);
1629 if ((adp == vesa_adp) &&
1630 (adp->va_info.vi_flags & V_INFO_LINEAR) != 0) {
1631 /* va_window_size == va_buffer_size/vi_planes */
1632 /* XXX: is this correct? */
1633 if (offset > adp->va_window_size - PAGE_SIZE)
1635 *paddr = adp->va_info.vi_buffer + offset;
1638 return ((*prevvidsw->mmap)(adp, offset, paddr, prot, memattr));
1642 vesa_clear(video_adapter_t *adp)
1645 return ((*prevvidsw->clear)(adp));
1649 vesa_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
1652 return ((*prevvidsw->fill_rect)(adp, val, x, y, cx, cy));
1656 vesa_bitblt(video_adapter_t *adp,...)
1664 get_palette(video_adapter_t *adp, int base, int count,
1665 u_char *red, u_char *green, u_char *blue, u_char *trans)
1673 if (base < 0 || base >= 256 || count < 0 || count > 256)
1675 if ((base + count) > 256)
1677 if (!VESA_MODE(adp->va_mode))
1680 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6;
1681 r = malloc(count * 3, M_DEVBUF, M_WAITOK);
1684 error = vesa_bios_save_palette2(base, count, r, g, b, bits);
1686 copyout(r, red, count);
1687 copyout(g, green, count);
1688 copyout(b, blue, count);
1689 if (trans != NULL) {
1691 copyout(r, trans, count);
1700 set_palette(video_adapter_t *adp, int base, int count,
1701 u_char *red, u_char *green, u_char *blue, u_char *trans)
1709 if (base < 0 || base >= 256 || count < 0 || count > 256)
1711 if ((base + count) > 256)
1713 if (!VESA_MODE(adp->va_mode))
1716 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6;
1717 r = malloc(count * 3, M_DEVBUF, M_WAITOK);
1720 copyin(red, r, count);
1721 copyin(green, g, count);
1722 copyin(blue, b, count);
1724 error = vesa_bios_load_palette2(base, count, r, g, b, bits);
1731 vesa_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg)
1735 if (adp != vesa_adp)
1736 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1739 case FBIO_SETWINORG: /* set frame buffer window origin */
1740 if (!VESA_MODE(adp->va_mode))
1741 return (*prevvidsw->ioctl)(adp, cmd, arg);
1742 return (vesa_set_origin(adp, *(off_t *)arg) ? ENODEV : 0);
1744 case FBIO_SETDISPSTART: /* set display start address */
1745 if (!VESA_MODE(adp->va_mode))
1746 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1747 if (vesa_bios_set_start(((video_display_start_t *)arg)->x,
1748 ((video_display_start_t *)arg)->y))
1750 adp->va_disp_start.x = ((video_display_start_t *)arg)->x;
1751 adp->va_disp_start.y = ((video_display_start_t *)arg)->y;
1754 case FBIO_SETLINEWIDTH: /* set line length in pixel */
1755 if (!VESA_MODE(adp->va_mode))
1756 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1757 if (vesa_bios_set_line_length(*(u_int *)arg, &bytes, NULL))
1759 adp->va_line_width = bytes;
1761 printf("new line width:%d\n", adp->va_line_width);
1765 case FBIO_GETPALETTE: /* get color palette */
1766 if (get_palette(adp, ((video_color_palette_t *)arg)->index,
1767 ((video_color_palette_t *)arg)->count,
1768 ((video_color_palette_t *)arg)->red,
1769 ((video_color_palette_t *)arg)->green,
1770 ((video_color_palette_t *)arg)->blue,
1771 ((video_color_palette_t *)arg)->transparent))
1772 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1776 case FBIO_SETPALETTE: /* set color palette */
1777 if (set_palette(adp, ((video_color_palette_t *)arg)->index,
1778 ((video_color_palette_t *)arg)->count,
1779 ((video_color_palette_t *)arg)->red,
1780 ((video_color_palette_t *)arg)->green,
1781 ((video_color_palette_t *)arg)->blue,
1782 ((video_color_palette_t *)arg)->transparent))
1783 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1786 case FBIOGETCMAP: /* get color palette */
1787 if (get_palette(adp, ((struct fbcmap *)arg)->index,
1788 ((struct fbcmap *)arg)->count,
1789 ((struct fbcmap *)arg)->red,
1790 ((struct fbcmap *)arg)->green,
1791 ((struct fbcmap *)arg)->blue, NULL))
1792 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1795 case FBIOPUTCMAP: /* set color palette */
1796 if (set_palette(adp, ((struct fbcmap *)arg)->index,
1797 ((struct fbcmap *)arg)->count,
1798 ((struct fbcmap *)arg)->red,
1799 ((struct fbcmap *)arg)->green,
1800 ((struct fbcmap *)arg)->blue, NULL))
1801 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1805 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1810 vesa_diag(video_adapter_t *adp, int level)
1814 /* call the previous handler first */
1815 error = (*prevvidsw->diag)(adp, level);
1819 if (adp != vesa_adp)
1829 vesa_bios_info(int level)
1832 struct vesa_mode vmode;
1837 vers = vesa_adp_info->v_version;
1840 /* general adapter information */
1842 "VESA: v%d.%d, %dk memory, flags:0x%x, mode table:%p (%x)\n",
1843 (vers >> 12) * 10 + ((vers & 0x0f00) >> 8),
1844 ((vers & 0x00f0) >> 4) * 10 + (vers & 0x000f),
1845 vesa_adp_info->v_memsize * 64, vesa_adp_info->v_flags,
1846 vesa_vmodetab, vesa_adp_info->v_modetable);
1849 if (vesa_oemstr != NULL)
1850 printf("VESA: %s\n", vesa_oemstr);
1856 if (vers >= 0x0200 && bootverbose) {
1857 /* vender name, product name, product revision */
1858 printf("VESA: %s %s %s\n",
1859 (vesa_venderstr != NULL) ? vesa_venderstr : "unknown",
1860 (vesa_prodstr != NULL) ? vesa_prodstr : "unknown",
1861 (vesa_revstr != NULL) ? vesa_revstr : "?");
1865 /* mode information */
1867 (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1))
1868 && (vesa_vmodetab[i] != 0xffff); ++i) {
1869 if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode, M_NOWAIT))
1872 /* print something for diagnostic purpose */
1873 printf("VESA: mode:0x%03x, flags:0x%04x",
1874 vesa_vmodetab[i], vmode.v_modeattr);
1875 if (vmode.v_modeattr & V_MODEOPTINFO) {
1876 if (vmode.v_modeattr & V_MODEGRAPHICS) {
1877 printf(", G %dx%dx%d %d, ",
1878 vmode.v_width, vmode.v_height,
1879 vmode.v_bpp, vmode.v_planes);
1881 printf(", T %dx%d, ",
1882 vmode.v_width, vmode.v_height);
1884 printf("font:%dx%d, ",
1885 vmode.v_cwidth, vmode.v_cheight);
1886 printf("pages:%d, mem:%d",
1887 vmode.v_ipages + 1, vmode.v_memmodel);
1889 if (vmode.v_modeattr & V_MODELFB) {
1890 printf("\nVESA: LFB:0x%x, off:0x%x, off_size:0x%x",
1891 vmode.v_lfb, vmode.v_offscreen,
1892 vmode.v_offscreensize*1024);
1895 printf("VESA: window A:0x%x (%x), window B:0x%x (%x), ",
1896 vmode.v_waseg, vmode.v_waattr,
1897 vmode.v_wbseg, vmode.v_wbattr);
1898 printf("size:%dk, gran:%dk\n",
1899 vmode.v_wsize, vmode.v_wgran);
1901 #endif /* VESA_DEBUG > 1 */
1906 /* module loading */
1916 mtx_init(&vesa_lock, "VESA lock", NULL, MTX_DEF);
1918 /* locate a VGA adapter */
1920 error = vesa_configure(0);
1923 vesa_bios_info(bootverbose);
1931 u_char palette[256*3];
1934 /* if the adapter is currently in a VESA mode, don't unload */
1935 if ((vesa_adp != NULL) && VESA_MODE(vesa_adp->va_mode))
1938 * FIXME: if there is at least one vty which is in a VESA mode,
1939 * we shouldn't be unloading! XXX
1942 if ((error = vesa_unload_ioctl()) == 0) {
1943 if (vesa_adp != NULL) {
1944 if ((vesa_adp->va_flags & V_ADP_DAC8) != 0) {
1945 vesa_bios_save_palette(0, 256, palette, 8);
1946 vesa_bios_set_dac(6);
1947 vesa_adp->va_flags &= ~V_ADP_DAC8;
1948 vesa_bios_load_palette(0, 256, palette, 6);
1950 vesa_adp->va_flags &= ~V_ADP_VESA;
1951 vidsw[vesa_adp->va_index] = prevvidsw;
1956 mtx_destroy(&vesa_lock);
1962 vesa_mod_event(module_t mod, int type, void *data)
1967 return (vesa_load());
1969 return (vesa_unload());
1971 return (EOPNOTSUPP);
1974 static moduledata_t vesa_mod = {
1980 DECLARE_MODULE(vesa, vesa_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
1981 MODULE_DEPEND(vesa, x86bios, 1, 1, 1);
1983 #endif /* VGA_NO_MODE_CHANGE */