4 * Copyright (c) 1998 Kazutaka YOKOTA and Michael Smith
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer as
12 * the first lines of this file unmodified.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 * $FreeBSD: src/sys/i386/isa/vesa.c,v 1.32.2.1 2002/08/13 02:42:33 rwatson Exp $
34 #ifndef VGA_NO_MODE_CHANGE
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/kernel.h>
39 #include <sys/module.h>
40 #include <sys/malloc.h>
42 #include <sys/thread2.h>
45 #include <vm/vm_extern.h>
46 #include <vm/vm_kern.h>
49 #include <machine/md_var.h>
50 #include <machine/vm86.h>
51 #include <machine/pc/bios.h>
52 #include <machine/pc/vesa.h>
54 #include <dev/video/fb/fbreg.h>
55 #include <dev/video/fb/vgareg.h>
57 #include <bus/isa/isa.h>
59 #define VESA_VIA_CLE266 "VIA CLE266\r\n"
65 /* VESA video adapter state buffer stub */
68 #define V_STATE_SIG 0x61736576
71 typedef struct adp_state adp_state_t;
73 /* VESA video adapter */
74 static video_adapter_t *vesa_adp = NULL;
75 static int vesa_state_buf_size = 0;
76 #define VESA_VM86_BUFSIZE (3 * PAGE_SIZE)
77 static void *vesa_vm86_buf;
81 static int vesa_nop(void);
83 static int vesa_error(void);
84 static vi_probe_t vesa_probe;
85 static vi_init_t vesa_init;
86 static vi_get_info_t vesa_get_info;
87 static vi_query_mode_t vesa_query_mode;
88 static vi_set_mode_t vesa_set_mode;
89 static vi_save_font_t vesa_save_font;
90 static vi_load_font_t vesa_load_font;
91 static vi_show_font_t vesa_show_font;
92 static vi_save_palette_t vesa_save_palette;
93 static vi_load_palette_t vesa_load_palette;
94 static vi_set_border_t vesa_set_border;
95 static vi_save_state_t vesa_save_state;
96 static vi_load_state_t vesa_load_state;
97 static vi_set_win_org_t vesa_set_origin;
98 static vi_read_hw_cursor_t vesa_read_hw_cursor;
99 static vi_set_hw_cursor_t vesa_set_hw_cursor;
100 static vi_set_hw_cursor_shape_t vesa_set_hw_cursor_shape;
101 static vi_blank_display_t vesa_blank_display;
102 static vi_mmap_t vesa_mmap;
103 static vi_ioctl_t vesa_ioctl;
104 static vi_clear_t vesa_clear;
105 static vi_fill_rect_t vesa_fill_rect;
106 static vi_bitblt_t vesa_bitblt;
107 static vi_diag_t vesa_diag;
108 static int vesa_bios_info(int level);
109 static struct vm86context vesa_vmcontext;
111 static video_switch_t vesavidsw = {
128 vesa_set_hw_cursor_shape,
140 static video_switch_t *prevvidsw;
142 /* VESA BIOS video modes */
146 #define MODE_TABLE_DELTA 8
148 static int vesa_vmode_max = 0;
149 static video_info_t vesa_vmode_empty = { EOT };
150 static video_info_t *vesa_vmode = &vesa_vmode_empty;
152 static int vesa_init_done = FALSE;
153 static int has_vesa_bios = FALSE;
154 static int dpms_states;
155 static struct vesa_info *vesa_adp_info = NULL;
156 static uint16_t *vesa_vmodetab = NULL;
157 static char *vesa_oemstr = NULL;
158 static char *vesa_vendorstr = NULL;
159 static char *vesa_prodstr = NULL;
160 static char *vesa_revstr = NULL;
162 /* local macros and functions */
163 #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff))
165 static int int10_set_mode(int mode);
166 static int vesa_bios_get_mode(int mode, struct vesa_mode *vmode);
167 static int vesa_bios_set_mode(int mode);
168 static int vesa_bios_get_dac(void);
169 static int vesa_bios_set_dac(int bits);
170 static int vesa_bios_save_palette(int start, int colors, u_char *palette,
172 static int vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g,
173 u_char *b, int bits);
174 static int vesa_bios_load_palette(int start, int colors, const u_char *palette,
177 static int vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g,
178 u_char *b, int bits);
183 #define STATE_HW (1<<0)
184 #define STATE_DATA (1<<1)
185 #define STATE_DAC (1<<2)
186 #define STATE_REG (1<<3)
187 #define STATE_MOST (STATE_HW | STATE_DATA | STATE_REG)
188 #define STATE_ALL (STATE_HW | STATE_DATA | STATE_DAC | STATE_REG)
189 static int vesa_bios_state_buf_size(void);
190 static int vesa_bios_save_restore(int code, void *p, size_t size);
191 static int vesa_bios_get_line_length(void);
192 static int vesa_bios_set_line_length(int pixel, int *bytes, int *lines);
194 static int vesa_bios_get_start(int *x, int *y);
196 static int vesa_bios_set_start(int x, int y);
197 static int vesa_translate_flags(uint16_t vflags);
198 static int vesa_translate_mmodel(uint8_t vmodel);
199 static void *vesa_fix_ptr(uint32_t p, uint16_t seg, uint16_t off,
201 static int vesa_bios_init(void);
202 static vm_offset_t vesa_map_buffer(u_int paddr, size_t size);
203 static void vesa_unmap_buffer(vm_offset_t vaddr, size_t size);
204 static int vesa_probe_dpms(void);
207 static int vesa_get_origin(video_adapter_t *adp, off_t *offset);
210 /* INT 10 BIOS calls */
212 int10_set_mode(int mode)
214 struct vm86frame vmf;
216 bzero(&vmf, sizeof(vmf));
217 vmf.vmf_eax = 0x0000 | mode;
218 vm86_intcall(0x10, &vmf);
222 /* VESA BIOS calls */
224 vesa_bios_get_mode(int mode, struct vesa_mode *vmode)
226 struct vm86frame vmf;
230 bzero(&vmf, sizeof(vmf));
231 vmf.vmf_eax = 0x4f01;
234 vm86_getptr(&vesa_vmcontext, (vm_offset_t)buf, &vmf.vmf_es, &vmf.vmf_di);
236 err = vm86_datacall(0x10, &vmf, &vesa_vmcontext);
237 if ((err != 0) || (vmf.vmf_ax != 0x4f))
239 bcopy(buf, vmode, sizeof(*vmode));
244 vesa_bios_set_mode(int mode)
246 struct vm86frame vmf;
249 bzero(&vmf, sizeof(vmf));
250 vmf.vmf_eax = 0x4f02;
252 err = vm86_intcall(0x10, &vmf);
253 return ((err != 0) || (vmf.vmf_ax != 0x4f));
257 vesa_bios_get_dac(void)
259 struct vm86frame vmf;
262 bzero(&vmf, sizeof(vmf));
263 vmf.vmf_eax = 0x4f08;
264 vmf.vmf_ebx = 1; /* get DAC width */
265 err = vm86_intcall(0x10, &vmf);
266 if ((err != 0) || (vmf.vmf_ax != 0x4f))
268 return ((vmf.vmf_ebx >> 8) & 0x00ff);
272 vesa_bios_set_dac(int bits)
274 struct vm86frame vmf;
277 bzero(&vmf, sizeof(vmf));
278 vmf.vmf_eax = 0x4f08;
279 vmf.vmf_ebx = (bits << 8);
280 err = vm86_intcall(0x10, &vmf);
281 if ((err != 0) || (vmf.vmf_ax != 0x4f))
283 return ((vmf.vmf_ebx >> 8) & 0x00ff);
287 vesa_bios_save_palette(int start, int colors, u_char *palette, int bits)
289 struct vm86frame vmf;
294 bzero(&vmf, sizeof(vmf));
295 vmf.vmf_eax = 0x4f09;
296 vmf.vmf_ebx = 1; /* get primary palette data */
297 vmf.vmf_ecx = colors;
300 vm86_getptr(&vesa_vmcontext, (vm_offset_t)p, &vmf.vmf_es, &vmf.vmf_di);
302 err = vm86_datacall(0x10, &vmf, &vesa_vmcontext);
303 if ((err != 0) || (vmf.vmf_ax != 0x4f))
307 for (i = 0; i < colors; ++i) {
308 palette[i*3] = p[i*4 + 2] << bits;
309 palette[i*3 + 1] = p[i*4 + 1] << bits;
310 palette[i*3 + 2] = p[i*4] << bits;
316 vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, u_char *b,
319 struct vm86frame vmf;
324 bzero(&vmf, sizeof(vmf));
325 vmf.vmf_eax = 0x4f09;
326 vmf.vmf_ebx = 1; /* get primary palette data */
327 vmf.vmf_ecx = colors;
330 vm86_getptr(&vesa_vmcontext, (vm_offset_t)p, &vmf.vmf_es, &vmf.vmf_di);
332 err = vm86_datacall(0x10, &vmf, &vesa_vmcontext);
333 if ((err != 0) || (vmf.vmf_ax != 0x4f))
337 for (i = 0; i < colors; ++i) {
338 r[i] = p[i*4 + 2] << bits;
339 g[i] = p[i*4 + 1] << bits;
340 b[i] = p[i*4] << bits;
346 vesa_bios_load_palette(int start, int colors, const u_char *palette, int bits)
348 struct vm86frame vmf;
355 for (i = 0; i < colors; ++i) {
356 p[i*4] = palette[i*3 + 2] >> bits;
357 p[i*4 + 1] = palette[i*3 + 1] >> bits;
358 p[i*4 + 2] = palette[i*3] >> bits;
362 bzero(&vmf, sizeof(vmf));
363 vmf.vmf_eax = 0x4f09;
364 vmf.vmf_ebx = 0; /* set primary palette data */
365 vmf.vmf_ecx = colors;
367 vm86_getptr(&vesa_vmcontext, (vm_offset_t)p, &vmf.vmf_es, &vmf.vmf_di);
369 err = vm86_datacall(0x10, &vmf, &vesa_vmcontext);
370 return ((err != 0) || (vmf.vmf_ax != 0x4f));
375 vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, u_char *b,
378 struct vm86frame vmf;
385 for (i = 0; i < colors; ++i) {
386 p[i*4] = b[i] >> bits;
387 p[i*4 + 1] = g[i] >> bits;
388 p[i*4 + 2] = r[i] >> bits;
392 bzero(&vmf, sizeof(vmf));
393 vmf.vmf_eax = 0x4f09;
394 vmf.vmf_ebx = 0; /* set primary palette data */
395 vmf.vmf_ecx = colors;
397 vm86_getptr(&vesa_vmcontext, (vm_offset_t)p, &vmf.vmf_es, &vmf.vmf_di);
399 err = vm86_datacall(0x10, &vmf, &vesa_vmcontext);
400 return ((err != 0) || (vmf.vmf_ax != 0x4f));
405 vesa_bios_state_buf_size(void)
407 struct vm86frame vmf;
410 bzero(&vmf, sizeof(vmf));
411 vmf.vmf_eax = 0x4f04;
412 vmf.vmf_ecx = STATE_ALL;
413 vmf.vmf_edx = STATE_SIZE;
414 err = vm86_intcall(0x10, &vmf);
415 if ((err != 0) || (vmf.vmf_ax != 0x4f))
417 return vmf.vmf_bx*64;
421 vesa_bios_save_restore(int code, void *p, size_t size)
423 struct vm86frame vmf;
427 if (size > VESA_VM86_BUFSIZE)
430 bzero(&vmf, sizeof(vmf));
431 vmf.vmf_eax = 0x4f04;
432 vmf.vmf_ecx = STATE_ALL;
433 vmf.vmf_edx = code; /* STATE_SAVE/STATE_LOAD */
435 vm86_getptr(&vesa_vmcontext, (vm_offset_t)buf, &vmf.vmf_es, &vmf.vmf_bx);
438 err = vm86_datacall(0x10, &vmf, &vesa_vmcontext);
440 return ((err != 0) || (vmf.vmf_ax != 0x4f));
444 vesa_bios_get_line_length(void)
446 struct vm86frame vmf;
449 bzero(&vmf, sizeof(vmf));
450 vmf.vmf_eax = 0x4f06;
451 vmf.vmf_ebx = 1; /* get scan line length */
452 err = vm86_intcall(0x10, &vmf);
453 if ((err != 0) || (vmf.vmf_ax != 0x4f))
455 return vmf.vmf_bx; /* line length in bytes */
459 vesa_bios_set_line_length(int pixel, int *bytes, int *lines)
461 struct vm86frame vmf;
464 bzero(&vmf, sizeof(vmf));
465 vmf.vmf_eax = 0x4f06;
466 vmf.vmf_ebx = 0; /* set scan line length in pixel */
468 err = vm86_intcall(0x10, &vmf);
470 kprintf("bx:%d, cx:%d, dx:%d\n", vmf.vmf_bx, vmf.vmf_cx, vmf.vmf_dx);
472 if ((err != 0) || (vmf.vmf_ax != 0x4f))
483 vesa_bios_get_start(int *x, int *y)
485 struct vm86frame vmf;
488 bzero(&vmf, sizeof(vmf));
489 vmf.vmf_eax = 0x4f07;
490 vmf.vmf_ebx = 1; /* get display start */
491 err = vm86_intcall(0x10, &vmf);
492 if ((err != 0) || (vmf.vmf_ax != 0x4f))
501 vesa_bios_set_start(int x, int y)
503 struct vm86frame vmf;
506 bzero(&vmf, sizeof(vmf));
507 vmf.vmf_eax = 0x4f07;
508 vmf.vmf_ebx = 0x80; /* set display start */
511 err = vm86_intcall(0x10, &vmf);
512 return ((err != 0) || (vmf.vmf_ax != 0x4f));
516 vesa_translate_flags(uint16_t vflags)
523 { V_MODECOLOR, V_INFO_COLOR, 0 },
524 { V_MODEGRAPHICS, V_INFO_GRAPHICS, 0 },
525 { V_MODELFB, V_INFO_LINEAR, 0 },
530 for (flags = 0, i = 0; i < NELEM(ftable); ++i) {
531 flags |= (vflags & ftable[i].mask) ?
532 ftable[i].set : ftable[i].reset;
538 vesa_translate_mmodel(uint8_t vmodel)
544 { V_MMTEXT, V_INFO_MM_TEXT },
545 { V_MMCGA, V_INFO_MM_CGA },
546 { V_MMHGC, V_INFO_MM_HGC },
547 { V_MMEGA, V_INFO_MM_PLANAR },
548 { V_MMPACKED, V_INFO_MM_PACKED },
549 { V_MMDIRCOLOR, V_INFO_MM_DIRECT },
553 for (i = 0; mtable[i].mmodel >= 0; ++i) {
554 if (mtable[i].vmodel == vmodel)
555 return mtable[i].mmodel;
557 return V_INFO_MM_OTHER;
561 vesa_fix_ptr(uint32_t p, uint16_t seg, uint16_t off, u_char *buf)
565 if (((p >> 16) == seg) && ((p & 0xffff) >= off))
566 return (void *)(buf + ((p & 0xffff) - off));
568 p = BIOS_SADDRTOLADDR(p);
569 return (void *)BIOS_PADDRTOVADDR(p);
576 static u_char buf[512];
577 struct vm86frame vmf;
578 struct vesa_mode vmode;
589 has_vesa_bios = FALSE;
590 vesa_adp_info = NULL;
592 vesa_vmode[0].vi_mode = EOT;
594 /* Allocate a buffer and add each page to the vm86 context. */
595 vesa_vm86_buf = kmalloc(VESA_VM86_BUFSIZE, M_DEVBUF, M_WAITOK | M_ZERO);
596 KASSERT(((vm_offset_t)vesa_vm86_buf & PAGE_MASK) == 0,
597 ("bad vesa_vm86_buf alignment"));
598 for (i = 0; i < howmany(VESA_VM86_BUFSIZE, PAGE_SIZE); i++)
599 vm86_addpage(&vesa_vmcontext, i + 1,
600 (vm_offset_t)vesa_vm86_buf + PAGE_SIZE * i);
602 vmbuf = vesa_vm86_buf;
603 bzero(&vmf, sizeof(vmf)); /* paranoia */
604 bcopy("VBE2", vmbuf, 4); /* try for VBE2 data */
605 vmf.vmf_eax = 0x4f00;
606 vm86_getptr(&vesa_vmcontext, (vm_offset_t)vmbuf, &vmf.vmf_es, &vmf.vmf_di);
608 err = vm86_datacall(0x10, &vmf, &vesa_vmcontext);
609 if ((err != 0) || (vmf.vmf_ax != 0x4f) || bcmp("VESA", vmbuf, 4))
611 bcopy(vmbuf, buf, sizeof(buf));
612 vesa_adp_info = (struct vesa_info *)buf;
614 kprintf("VESA: information block\n");
615 hexdump(buf, 64, NULL, HD_OMIT_CHARS | HD_OMIT_COUNT);
617 if (vesa_adp_info->v_version < 0x0102) {
618 kprintf("VESA: VBE version %d.%d is not supported; "
619 "version 1.2 or later is required.\n",
620 bcd2bin((vesa_adp_info->v_version & 0xff00) >> 8),
621 bcd2bin(vesa_adp_info->v_version & 0x00ff));
625 /* fix string ptrs */
626 vesa_oemstr = (char *)vesa_fix_ptr(vesa_adp_info->v_oemstr,
627 vmf.vmf_es, vmf.vmf_di, buf);
628 is_via_cle266 = strcmp(vesa_oemstr, VESA_VIA_CLE266) == 0;
630 if (vesa_adp_info->v_version >= 0x0200) {
632 (char *)vesa_fix_ptr(vesa_adp_info->v_vendorstr,
633 vmf.vmf_es, vmf.vmf_di, buf);
635 (char *)vesa_fix_ptr(vesa_adp_info->v_prodstr,
636 vmf.vmf_es, vmf.vmf_di, buf);
638 (char *)vesa_fix_ptr(vesa_adp_info->v_revstr,
639 vmf.vmf_es, vmf.vmf_di, buf);
642 /* obtain video mode information */
643 vesa_vmodetab = (uint16_t *)vesa_fix_ptr(vesa_adp_info->v_modetable,
644 vmf.vmf_es, vmf.vmf_di, buf);
645 if (vesa_vmodetab == NULL)
647 for (i = 0, modes = 0;
648 (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1))
649 && (vesa_vmodetab[i] != 0xffff); ++i) {
650 if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode))
653 /* reject unsupported modes */
654 if ((vmode.v_modeattr & V_MODESUPP) != V_MODESUPP) {
656 kprintf("Rejecting VESA %s mode: %d x %d x %d bpp attr = 0x%x\n",
657 vmode.v_modeattr & V_MODEGRAPHICS ? "graphics" : "text",
658 vmode.v_width, vmode.v_height, vmode.v_bpp,
664 /* expand the array if necessary */
665 if (modes >= vesa_vmode_max) {
666 vesa_vmode_max += MODE_TABLE_DELTA;
667 p = kmalloc(sizeof(*vesa_vmode)*(vesa_vmode_max + 1),
670 kprintf("vesa_bios_init(): modes:%d, vesa_mode_max:%d\n",
671 modes, vesa_vmode_max);
674 bcopy(vesa_vmode, p, sizeof(*vesa_vmode)*modes);
675 kfree(vesa_vmode, M_DEVBUF);
681 kprintf("Found VESA %s mode: %d x %d x %d bpp\n",
682 vmode.v_modeattr & V_MODEGRAPHICS ? "graphics" : "text",
683 vmode.v_width, vmode.v_height, vmode.v_bpp);
686 if ((vmode.v_width & 0xff00) >> 8 == vmode.v_height - 1) {
687 vmode.v_width &= 0xff;
688 vmode.v_waseg = 0xb8000 >> 4;
692 /* copy some fields */
693 bzero(&vesa_vmode[modes], sizeof(vesa_vmode[modes]));
694 vesa_vmode[modes].vi_mode = vesa_vmodetab[i];
695 vesa_vmode[modes].vi_width = vmode.v_width;
696 vesa_vmode[modes].vi_height = vmode.v_height;
697 vesa_vmode[modes].vi_depth = vmode.v_bpp;
698 vesa_vmode[modes].vi_planes = vmode.v_planes;
699 vesa_vmode[modes].vi_cwidth = vmode.v_cwidth;
700 vesa_vmode[modes].vi_cheight = vmode.v_cheight;
701 vesa_vmode[modes].vi_window = (u_int)vmode.v_waseg << 4;
703 vesa_vmode[modes].vi_window_size = vmode.v_wsize*1024;
704 vesa_vmode[modes].vi_window_gran = vmode.v_wgran*1024;
705 if (vmode.v_modeattr & V_MODELFB)
706 vesa_vmode[modes].vi_buffer = vmode.v_lfb;
708 vesa_vmode[modes].vi_buffer = 0;
710 vesa_vmode[modes].vi_buffer_size
711 = vesa_adp_info->v_memsize*64*1024;
713 if (vmode.v_offscreen > vmode.v_lfb)
714 vesa_vmode[modes].vi_buffer_size
715 = vmode.v_offscreen + vmode.v_offscreensize*1024
718 vesa_vmode[modes].vi_buffer_size
719 = vmode.v_offscreen + vmode.v_offscreensize*1024
721 vesa_vmode[modes].vi_mem_model
722 = vesa_translate_mmodel(vmode.v_memmodel);
723 vesa_vmode[modes].vi_pixel_fields[0] = 0;
724 vesa_vmode[modes].vi_pixel_fields[1] = 0;
725 vesa_vmode[modes].vi_pixel_fields[2] = 0;
726 vesa_vmode[modes].vi_pixel_fields[3] = 0;
727 vesa_vmode[modes].vi_pixel_fsizes[0] = 0;
728 vesa_vmode[modes].vi_pixel_fsizes[1] = 0;
729 vesa_vmode[modes].vi_pixel_fsizes[2] = 0;
730 vesa_vmode[modes].vi_pixel_fsizes[3] = 0;
731 if (vesa_vmode[modes].vi_mem_model == V_INFO_MM_PACKED) {
732 vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7)/8;
733 } else if (vesa_vmode[modes].vi_mem_model == V_INFO_MM_DIRECT) {
734 vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7)/8;
735 vesa_vmode[modes].vi_pixel_fields[0]
736 = vmode.v_redfieldpos;
737 vesa_vmode[modes].vi_pixel_fields[1]
738 = vmode.v_greenfieldpos;
739 vesa_vmode[modes].vi_pixel_fields[2]
740 = vmode.v_bluefieldpos;
741 vesa_vmode[modes].vi_pixel_fields[3]
742 = vmode.v_resfieldpos;
743 vesa_vmode[modes].vi_pixel_fsizes[0]
744 = vmode.v_redmasksize;
745 vesa_vmode[modes].vi_pixel_fsizes[1]
746 = vmode.v_greenmasksize;
747 vesa_vmode[modes].vi_pixel_fsizes[2]
748 = vmode.v_bluemasksize;
749 vesa_vmode[modes].vi_pixel_fsizes[3]
750 = vmode.v_resmasksize;
752 vesa_vmode[modes].vi_pixel_size = 0;
755 vesa_vmode[modes].vi_flags
756 = vesa_translate_flags(vmode.v_modeattr) | V_INFO_VESA;
759 vesa_vmode[modes].vi_mode = EOT;
761 kprintf("VESA: %d mode(s) found\n", modes);
763 has_vesa_bios = (modes > 0);
767 dpms_states = vesa_probe_dpms();
768 if (dpms_states > 0 && bootverbose)
769 kprintf("VESA: DPMS support (states:0x%x)\n", dpms_states);
775 vesa_map_buffer(u_int paddr, size_t size)
780 off = paddr - trunc_page(paddr);
781 vaddr = (vm_offset_t)pmap_mapdev(paddr - off, size + off);
783 kprintf("vesa_map_buffer: paddr:0x%x vaddr:%p size:%zu off:%zu\n",
784 paddr, (void *)vaddr, size, off);
786 return (vaddr + off);
790 vesa_unmap_buffer(vm_offset_t vaddr, size_t size)
793 kprintf("vesa_unmap_buffer: vaddr:%p size:%zu\n",
794 (void *)vaddr, size);
796 pmap_unmapdev(vaddr, size);
802 * Probe DPMS support and return the supported states.
806 vesa_probe_dpms(void)
808 struct vm86frame vmf;
811 bzero(&vmf, sizeof(vmf));
812 vmf.vmf_eax = 0x4f10;
814 err = vm86_intcall(0x10, &vmf);
815 if ((err != 0) || (vmf.vmf_ax != 0x4f))
816 return 0; /* no support */
818 return (vmf.vmf_ebx >> 8);
824 vesa_configure(int flags)
826 video_adapter_t *adp;
831 if (flags & VIO_PROBE_ONLY)
834 lwkt_gettoken(&tty_token);
836 * If the VESA module has already been loaded, abort loading
837 * the module this time.
839 for (i = 0; (adp = vid_get_adapter(i)) != NULL; ++i) {
840 if (adp->va_flags & V_ADP_VESA) {
841 lwkt_reltoken(&tty_token);
844 if (adp->va_type == KD_VGA)
848 * The VGA adapter is not found. This is because either
849 * 1) the VGA driver has not been initialized, or 2) the VGA card
850 * is not present. If 1) is the case, we shall defer
851 * initialization for now and try again later.
854 vga_sub_configure = vesa_configure;
855 lwkt_reltoken(&tty_token);
861 if (vesa_bios_init()) {
863 lwkt_reltoken(&tty_token);
866 vesa_adp->va_flags |= V_ADP_VESA | V_ADP_COLOR;
868 prevvidsw = vidsw[vesa_adp->va_index];
869 vidsw[vesa_adp->va_index] = &vesavidsw;
870 vesa_init_done = TRUE;
871 lwkt_reltoken(&tty_token);
890 vesa_probe(int unit, video_adapter_t **adpp, void *arg, int flags)
894 lwkt_gettoken(&tty_token);
895 ret = (*prevvidsw->probe)(unit, adpp, arg, flags);
896 lwkt_reltoken(&tty_token);
902 vesa_init(int unit, video_adapter_t *adp, int flags)
906 lwkt_gettoken(&tty_token);
907 ret = (*prevvidsw->init)(unit, adp, flags);
908 lwkt_reltoken(&tty_token);
914 vesa_get_info(video_adapter_t *adp, int mode, video_info_t *info)
918 lwkt_gettoken(&tty_token);
919 if ((*prevvidsw->get_info)(adp, mode, info) == 0) {
920 lwkt_reltoken(&tty_token);
924 if (adp != vesa_adp) {
925 lwkt_reltoken(&tty_token);
929 for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) {
930 if (vesa_vmode[i].vi_mode == NA)
932 if (vesa_vmode[i].vi_mode == mode) {
933 *info = vesa_vmode[i];
934 lwkt_reltoken(&tty_token);
938 lwkt_reltoken(&tty_token);
943 vesa_query_mode(video_adapter_t *adp, video_info_t *info)
947 if ((*prevvidsw->query_mode)(adp, info) == 0)
952 for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) {
953 if ((info->vi_width != 0)
954 && (info->vi_width != vesa_vmode[i].vi_width))
956 if ((info->vi_height != 0)
957 && (info->vi_height != vesa_vmode[i].vi_height))
959 if ((info->vi_cwidth != 0)
960 && (info->vi_cwidth != vesa_vmode[i].vi_cwidth))
962 if ((info->vi_cheight != 0)
963 && (info->vi_cheight != vesa_vmode[i].vi_cheight))
965 if ((info->vi_depth != 0)
966 && (info->vi_depth != vesa_vmode[i].vi_depth))
968 if ((info->vi_planes != 0)
969 && (info->vi_planes != vesa_vmode[i].vi_planes))
971 /* pixel format, memory model */
972 if ((info->vi_flags != 0)
973 && (info->vi_flags != vesa_vmode[i].vi_flags))
975 *info = vesa_vmode[i];
982 vesa_set_mode(video_adapter_t *adp, int mode)
987 lwkt_gettoken(&tty_token);
989 if (adp != vesa_adp) {
990 ret = (*prevvidsw->set_mode)(adp, mode);
991 lwkt_reltoken(&tty_token);
996 kprintf("VESA: set_mode(): %d(0x%x) -> %d(0x%x)\n",
997 adp->va_mode, adp->va_mode, mode, mode);
1000 * If the current mode is a VESA mode and the new mode is not,
1001 * restore the state of the adapter first by setting one of the
1002 * standard VGA mode, so that non-standard, extended SVGA registers
1003 * are set to the state compatible with the standard VGA modes.
1004 * Otherwise (*prevvidsw->set_mode)() may not be able to set up
1005 * the new mode correctly.
1007 if (VESA_MODE(adp->va_mode)) {
1008 if ((*prevvidsw->get_info)(adp, mode, &info) == 0) {
1009 int10_set_mode(adp->va_initial_bios_mode);
1010 if (adp->va_info.vi_flags & V_INFO_LINEAR)
1011 vesa_unmap_buffer(adp->va_buffer,
1012 vesa_adp_info->v_memsize*64*1024);
1014 * Once (*prevvidsw->get_info)() succeeded,
1015 * (*prevvidsw->set_mode)() below won't fail...
1020 /* we may not need to handle this mode after all... */
1021 if ((*prevvidsw->set_mode)(adp, mode) == 0) {
1022 lwkt_reltoken(&tty_token);
1026 /* is the new mode supported? */
1027 if (vesa_get_info(adp, mode, &info)) {
1028 lwkt_reltoken(&tty_token);
1031 /* assert(VESA_MODE(mode)); */
1034 kprintf("VESA: about to set a VESA mode...\n");
1036 /* don't use the linear frame buffer for text modes. XXX */
1037 if (!(info.vi_flags & V_INFO_GRAPHICS))
1038 info.vi_flags &= ~V_INFO_LINEAR;
1040 if (vesa_bios_set_mode(mode | ((info.vi_flags & V_INFO_LINEAR) ? 0x4000 : 0))) {
1041 lwkt_reltoken(&tty_token);
1045 if (adp->va_info.vi_flags & V_INFO_LINEAR)
1046 vesa_unmap_buffer(adp->va_buffer,
1047 vesa_adp_info->v_memsize*64*1024);
1050 kprintf("VESA: mode set!\n");
1052 vesa_adp->va_mode = mode;
1053 if (info.vi_flags & V_INFO_LINEAR) {
1055 kprintf("VESA: setting up LFB\n");
1057 vesa_adp->va_buffer =
1058 vesa_map_buffer(info.vi_buffer,
1059 vesa_adp_info->v_memsize*64*1024);
1060 vesa_adp->va_buffer_size = info.vi_buffer_size;
1061 vesa_adp->va_window = vesa_adp->va_buffer;
1062 vesa_adp->va_window_size = info.vi_buffer_size/info.vi_planes;
1063 vesa_adp->va_window_gran = info.vi_buffer_size/info.vi_planes;
1065 vesa_adp->va_buffer = 0;
1066 vesa_adp->va_buffer_size = info.vi_buffer_size;
1067 vesa_adp->va_window = BIOS_PADDRTOVADDR(info.vi_window);
1068 vesa_adp->va_window_size = info.vi_window_size;
1069 vesa_adp->va_window_gran = info.vi_window_gran;
1071 vesa_adp->va_window_orig = 0;
1072 len = vesa_bios_get_line_length();
1074 vesa_adp->va_line_width = len;
1075 } else if (info.vi_flags & V_INFO_GRAPHICS) {
1076 switch (info.vi_depth/info.vi_planes) {
1078 vesa_adp->va_line_width = info.vi_width/8;
1081 vesa_adp->va_line_width = info.vi_width/4;
1084 vesa_adp->va_line_width = info.vi_width/2;
1087 default: /* shouldn't happen */
1088 vesa_adp->va_line_width = info.vi_width;
1092 vesa_adp->va_line_width = info.vi_width*2;
1096 vesa_adp->va_line_width = info.vi_width*4;
1100 vesa_adp->va_line_width = info.vi_width;
1102 vesa_adp->va_disp_start.x = 0;
1103 vesa_adp->va_disp_start.y = 0;
1105 kprintf("vesa_set_mode(): vi_width:%d, len:%d, line_width:%d\n",
1106 info.vi_width, len, vesa_adp->va_line_width);
1108 bcopy(&info, &vesa_adp->va_info, sizeof(vesa_adp->va_info));
1110 /* move hardware cursor out of the way */
1111 (*vidsw[vesa_adp->va_index]->set_hw_cursor)(vesa_adp, -1, -1);
1113 lwkt_reltoken(&tty_token);
1118 vesa_save_font(video_adapter_t *adp, int page, int fontsize, u_char *data,
1123 lwkt_gettoken(&tty_token);
1124 ret = (*prevvidsw->save_font)(adp, page, fontsize, data, ch, count);
1125 lwkt_reltoken(&tty_token);
1130 vesa_load_font(video_adapter_t *adp, int page, int fontsize, u_char *data,
1135 lwkt_gettoken(&tty_token);
1136 ret = (*prevvidsw->load_font)(adp, page, fontsize, data, ch, count);
1137 lwkt_reltoken(&tty_token);
1142 vesa_show_font(video_adapter_t *adp, int page)
1146 lwkt_gettoken(&tty_token);
1147 ret = (*prevvidsw->show_font)(adp, page);
1148 lwkt_reltoken(&tty_token);
1153 vesa_save_palette(video_adapter_t *adp, u_char *palette)
1159 lwkt_gettoken(&tty_token);
1160 if ((adp == vesa_adp) && (vesa_adp_info->v_flags & V_DAC8)
1161 && VESA_MODE(adp->va_mode)) {
1162 bits = vesa_bios_get_dac();
1163 error = vesa_bios_save_palette(0, 256, palette, bits);
1165 lwkt_reltoken(&tty_token);
1169 lwkt_reltoken(&tty_token);
1174 ret = (*prevvidsw->save_palette)(adp, palette);
1175 lwkt_reltoken(&tty_token);
1180 vesa_load_palette(video_adapter_t *adp, const u_char *palette)
1184 lwkt_gettoken(&tty_token);
1189 if ((adp == vesa_adp) && (vesa_adp_info->v_flags & V_DAC8)
1190 && VESA_MODE(adp->va_mode) && ((bits = vesa_bios_set_dac(8)) > 6)) {
1191 error = vesa_bios_load_palette(0, 256, palette, bits);
1193 lwkt_reltoken(&tty_token);
1196 if (vesa_bios_set_dac(6) != 6) {
1197 lwkt_reltoken(&tty_token);
1203 ret = (*prevvidsw->load_palette)(adp, palette);
1204 lwkt_reltoken(&tty_token);
1209 vesa_set_border(video_adapter_t *adp, int color)
1213 lwkt_gettoken(&tty_token);
1214 ret = (*prevvidsw->set_border)(adp, color);
1215 lwkt_reltoken(&tty_token);
1220 vesa_save_state(video_adapter_t *adp, void *p, size_t size)
1224 lwkt_gettoken(&tty_token);
1225 if (adp != vesa_adp) {
1226 ret = (*prevvidsw->save_state)(adp, p, size);
1227 lwkt_reltoken(&tty_token);
1231 if (vesa_state_buf_size == 0)
1232 vesa_state_buf_size = vesa_bios_state_buf_size();
1234 lwkt_reltoken(&tty_token);
1235 return (sizeof(int) + vesa_state_buf_size);
1236 } else if (size < (sizeof(int) + vesa_state_buf_size)) {
1237 lwkt_reltoken(&tty_token);
1241 ((adp_state_t *)p)->sig = V_STATE_SIG;
1242 bzero(((adp_state_t *)p)->regs, vesa_state_buf_size);
1243 ret = vesa_bios_save_restore(STATE_SAVE, ((adp_state_t *)p)->regs,
1244 vesa_state_buf_size);
1245 lwkt_reltoken(&tty_token);
1250 vesa_load_state(video_adapter_t *adp, void *p)
1254 lwkt_gettoken(&tty_token);
1256 if ((adp != vesa_adp) || (((adp_state_t *)p)->sig != V_STATE_SIG)) {
1257 ret = (*prevvidsw->load_state)(adp, p);
1258 lwkt_reltoken(&tty_token);
1262 ret = vesa_bios_save_restore(STATE_LOAD, ((adp_state_t *)p)->regs,
1263 vesa_state_buf_size);
1264 lwkt_reltoken(&tty_token);
1270 vesa_get_origin(video_adapter_t *adp, off_t *offset)
1272 struct vm86frame vmf;
1275 bzero(&vmf, sizeof(vmf));
1276 vmf.vmf_eax = 0x4f05;
1277 vmf.vmf_ebx = 0x10; /* WINDOW_A, XXX */
1278 err = vm86_intcall(0x10, &vmf);
1279 if ((err != 0) || (vmf.vmf_ax != 0x4f))
1281 *offset = vmf.vmf_dx*adp->va_window_gran;
1287 vesa_set_origin(video_adapter_t *adp, off_t offset)
1289 struct vm86frame vmf;
1292 lwkt_gettoken(&tty_token);
1295 * This function should return as quickly as possible to
1296 * maintain good performance of the system. For this reason,
1297 * error checking is kept minimal and let the VESA BIOS to
1300 if (adp != vesa_adp) {
1301 ret = (*prevvidsw->set_win_org)(adp, offset);
1302 lwkt_reltoken(&tty_token);
1306 /* if this is a linear frame buffer, do nothing */
1307 if (adp->va_info.vi_flags & V_INFO_LINEAR) {
1308 lwkt_reltoken(&tty_token);
1312 if (adp->va_window_gran == 0) {
1313 lwkt_reltoken(&tty_token);
1317 lwkt_reltoken(&tty_token);
1319 bzero(&vmf, sizeof(vmf));
1320 vmf.vmf_eax = 0x4f05;
1321 vmf.vmf_ebx = 0; /* WINDOW_A, XXX */
1322 vmf.vmf_edx = offset/adp->va_window_gran;
1323 err = vm86_intcall(0x10, &vmf);
1324 if ((err != 0) || (vmf.vmf_ax != 0x4f))
1326 bzero(&vmf, sizeof(vmf));
1327 vmf.vmf_eax = 0x4f05;
1328 vmf.vmf_ebx = 1; /* WINDOW_B, XXX */
1329 vmf.vmf_edx = offset/adp->va_window_gran;
1330 err = vm86_intcall(0x10, &vmf);
1331 adp->va_window_orig = (offset/adp->va_window_gran)*adp->va_window_gran;
1336 vesa_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
1340 lwkt_gettoken(&tty_token);
1341 ret = (*prevvidsw->read_hw_cursor)(adp, col, row);
1342 lwkt_reltoken(&tty_token);
1348 vesa_set_hw_cursor(video_adapter_t *adp, int col, int row)
1352 lwkt_gettoken(&tty_token);
1353 ret = (*prevvidsw->set_hw_cursor)(adp, col, row);
1354 lwkt_reltoken(&tty_token);
1360 vesa_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
1361 int celsize, int blink)
1365 lwkt_gettoken(&tty_token);
1366 ret = (*prevvidsw->set_hw_cursor_shape)(adp, base, height, celsize,
1368 lwkt_reltoken(&tty_token);
1374 * vesa_blank_display
1376 * Use DPMS if it is supported by the adapter and supports the requested
1377 * state, else use the traditional VGA method. When unblanking, use both
1378 * methods because either might have put us into the blanked state previously.
1382 vesa_blank_display(video_adapter_t *adp, int mode)
1384 struct vm86frame vmf;
1387 lwkt_gettoken(&tty_token);
1388 if (mode == V_DISPLAY_ON) {
1389 err = (*prevvidsw->blank_display)(adp, V_DISPLAY_ON);
1390 if (dpms_states == 0) {
1391 lwkt_reltoken(&tty_token);
1394 bzero(&vmf, sizeof(vmf));
1395 vmf.vmf_eax = 0x4f10;
1397 err = vm86_intcall(0x10, &vmf);
1398 lwkt_reltoken(&tty_token);
1399 return ((err != 0) || (vmf.vmf_ax != 0x4f));
1401 } else if (dpms_states & mode) {
1402 bzero(&vmf, sizeof(vmf));
1403 vmf.vmf_eax = 0x4f10;
1404 vmf.vmf_ebx = (mode << 8) | 1;
1405 err = vm86_intcall(0x10, &vmf);
1406 lwkt_reltoken(&tty_token);
1407 return ((err != 0) || (vmf.vmf_ax != 0x4f));
1410 err = (*prevvidsw->blank_display)(adp, mode);
1411 lwkt_reltoken(&tty_token);
1416 vesa_mmap(video_adapter_t *adp, vm_offset_t offset, int prot)
1420 lwkt_gettoken(&tty_token);
1422 kprintf("vesa_mmap(): window:0x%x, buffer:0x%x, offset:0x%lx\n",
1423 adp->va_info.vi_window, adp->va_info.vi_buffer, (long )offset);
1426 if ((adp == vesa_adp) && (adp->va_info.vi_flags & V_INFO_LINEAR)) {
1427 /* va_window_size == va_buffer_size/vi_planes */
1428 /* XXX: is this correct? */
1429 if (offset > adp->va_window_size - PAGE_SIZE) {
1430 lwkt_reltoken(&tty_token);
1434 lwkt_reltoken(&tty_token);
1435 return i386_btop(adp->va_info.vi_buffer + offset);
1438 ret = (*prevvidsw->mmap)(adp, offset, prot);
1439 lwkt_reltoken(&tty_token);
1442 lwkt_reltoken(&tty_token);
1446 vesa_clear(video_adapter_t *adp)
1450 lwkt_gettoken(&tty_token);
1451 ret = (*prevvidsw->clear)(adp);
1452 lwkt_reltoken(&tty_token);
1458 vesa_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
1462 lwkt_gettoken(&tty_token);
1463 ret = (*prevvidsw->fill_rect)(adp, val, x, y, cx, cy);
1464 lwkt_reltoken(&tty_token);
1470 vesa_bitblt(video_adapter_t *adp,...)
1477 get_palette(video_adapter_t *adp, int base, int count,
1478 u_char *red, u_char *green, u_char *blue, u_char *trans)
1486 if ((base < 0) || (base >= 256) || (count < 0) || (count > 256))
1488 if ((base + count) > 256)
1490 if (!(vesa_adp_info->v_flags & V_DAC8) || !VESA_MODE(adp->va_mode))
1493 bits = vesa_bios_get_dac();
1497 r = kmalloc(count*3, M_DEVBUF, M_WAITOK);
1500 error = vesa_bios_save_palette2(base, count, r, g, b, bits);
1502 copyout(r, red, count);
1503 copyout(g, green, count);
1504 copyout(b, blue, count);
1505 if (trans != NULL) {
1507 copyout(r, trans, count);
1512 /* if error && bits != 6 at this point, we are in in trouble... XXX */
1517 set_palette(video_adapter_t *adp, int base, int count,
1518 u_char *red, u_char *green, u_char *blue, u_char *trans)
1528 if ((base < 0) || (base >= 256) || (base + count > 256))
1530 if (!(vesa_adp_info->v_flags & V_DAC8) || !VESA_MODE(adp->va_mode)
1531 || ((bits = vesa_bios_set_dac(8)) <= 6))
1534 r = kmalloc(count*3, M_DEVBUF, M_WAITOK);
1537 copyin(red, r, count);
1538 copyin(green, g, count);
1539 copyin(blue, b, count);
1541 error = vesa_bios_load_palette2(base, count, r, g, b, bits);
1546 /* if the following call fails, we are in trouble... XXX */
1547 vesa_bios_set_dac(6);
1553 vesa_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg)
1557 if (adp != vesa_adp)
1558 return (*prevvidsw->ioctl)(adp, cmd, arg);
1561 case FBIO_SETWINORG: /* set frame buffer window origin */
1562 if (!VESA_MODE(adp->va_mode))
1563 return (*prevvidsw->ioctl)(adp, cmd, arg);
1564 return (vesa_set_origin(adp, *(off_t *)arg) ? ENODEV : 0);
1566 case FBIO_SETDISPSTART: /* set display start address */
1567 if (!VESA_MODE(adp->va_mode))
1568 return (*prevvidsw->ioctl)(adp, cmd, arg);
1569 if (vesa_bios_set_start(((video_display_start_t *)arg)->x,
1570 ((video_display_start_t *)arg)->y))
1572 adp->va_disp_start.x = ((video_display_start_t *)arg)->x;
1573 adp->va_disp_start.y = ((video_display_start_t *)arg)->y;
1576 case FBIO_SETLINEWIDTH: /* set line length in pixel */
1577 if (!VESA_MODE(adp->va_mode))
1578 return (*prevvidsw->ioctl)(adp, cmd, arg);
1579 if (vesa_bios_set_line_length(*(u_int *)arg, &bytes, NULL))
1581 adp->va_line_width = bytes;
1583 kprintf("new line width:%d\n", adp->va_line_width);
1587 case FBIO_GETPALETTE: /* get color palette */
1588 if (get_palette(adp, ((video_color_palette_t *)arg)->index,
1589 ((video_color_palette_t *)arg)->count,
1590 ((video_color_palette_t *)arg)->red,
1591 ((video_color_palette_t *)arg)->green,
1592 ((video_color_palette_t *)arg)->blue,
1593 ((video_color_palette_t *)arg)->transparent))
1594 return (*prevvidsw->ioctl)(adp, cmd, arg);
1598 case FBIO_SETPALETTE: /* set color palette */
1599 if (set_palette(adp, ((video_color_palette_t *)arg)->index,
1600 ((video_color_palette_t *)arg)->count,
1601 ((video_color_palette_t *)arg)->red,
1602 ((video_color_palette_t *)arg)->green,
1603 ((video_color_palette_t *)arg)->blue,
1604 ((video_color_palette_t *)arg)->transparent))
1605 return (*prevvidsw->ioctl)(adp, cmd, arg);
1608 case FBIOGETCMAP: /* get color palette */
1609 if (get_palette(adp, ((struct fbcmap *)arg)->index,
1610 ((struct fbcmap *)arg)->count,
1611 ((struct fbcmap *)arg)->red,
1612 ((struct fbcmap *)arg)->green,
1613 ((struct fbcmap *)arg)->blue, NULL))
1614 return (*prevvidsw->ioctl)(adp, cmd, arg);
1617 case FBIOPUTCMAP: /* set color palette */
1618 if (set_palette(adp, ((struct fbcmap *)arg)->index,
1619 ((struct fbcmap *)arg)->count,
1620 ((struct fbcmap *)arg)->red,
1621 ((struct fbcmap *)arg)->green,
1622 ((struct fbcmap *)arg)->blue, NULL))
1623 return (*prevvidsw->ioctl)(adp, cmd, arg);
1627 return (*prevvidsw->ioctl)(adp, cmd, arg);
1632 vesa_diag(video_adapter_t *adp, int level)
1636 /* call the previous handler first */
1637 error = (*prevvidsw->diag)(adp, level);
1641 if (adp != vesa_adp)
1648 vesa_bios_info(int level)
1651 struct vesa_mode vmode;
1656 /* general adapter information */
1657 kprintf("VESA: v%d.%d, %dk memory, flags:0x%x, mode table:%p (0x%x)\n",
1658 bcd2bin((vesa_adp_info->v_version & 0xff00) >> 8),
1659 bcd2bin(vesa_adp_info->v_version & 0x00ff),
1660 vesa_adp_info->v_memsize * 64, vesa_adp_info->v_flags,
1661 vesa_vmodetab, vesa_adp_info->v_modetable);
1664 if (vesa_oemstr != NULL)
1665 kprintf("VESA: %s\n", vesa_oemstr);
1671 if (vesa_adp_info->v_version >= 0x0200 && bootverbose) {
1672 /* vendor name, product name, product revision */
1673 kprintf("VESA: %s %s %s\n",
1674 (vesa_vendorstr != NULL) ? vesa_vendorstr : "unknown",
1675 (vesa_prodstr != NULL) ? vesa_prodstr : "unknown",
1676 (vesa_revstr != NULL) ? vesa_revstr : "?");
1680 /* mode information */
1682 (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1))
1683 && (vesa_vmodetab[i] != 0xffff); ++i) {
1684 if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode))
1687 /* print something for diagnostic purpose */
1688 kprintf("VESA: mode:0x%03x, flags:0x%04x",
1689 vesa_vmodetab[i], vmode.v_modeattr);
1690 if (vmode.v_modeattr & V_MODEGRAPHICS) {
1691 kprintf(", G %dx%dx%d %d, ",
1692 vmode.v_width, vmode.v_height,
1693 vmode.v_bpp, vmode.v_planes);
1695 kprintf(", T %dx%d, ",
1696 vmode.v_width, vmode.v_height);
1698 kprintf("font:%dx%d, ",
1699 vmode.v_cwidth, vmode.v_cheight);
1700 kprintf("pages:%d, mem:%d",
1701 vmode.v_ipages + 1, vmode.v_memmodel);
1702 if (vmode.v_modeattr & V_MODELFB) {
1703 kprintf("\nVESA: LFB:0x%x, off:0x%x, off_size:0x%x",
1704 vmode.v_lfb, vmode.v_offscreen,
1705 vmode.v_offscreensize*1024);
1708 kprintf("VESA: window A:0x%x (0x%x), window B:0x%x (0x%x), ",
1709 vmode.v_waseg, vmode.v_waattr,
1710 vmode.v_wbseg, vmode.v_wbattr);
1711 kprintf("size:%dk, gran:%dk\n",
1712 vmode.v_wsize, vmode.v_wgran);
1714 #endif /* VESA_DEBUG > 1 */
1719 /* module loading */
1729 /* locate a VGA adapter */
1732 error = vesa_configure(0);
1736 vesa_bios_info(bootverbose);
1744 u_char palette[256*3];
1747 /* if the adapter is currently in a VESA mode, don't unload */
1748 if ((vesa_adp != NULL) && VESA_MODE(vesa_adp->va_mode))
1751 * FIXME: if there is at least one vty which is in a VESA mode,
1752 * we shouldn't be unloading! XXX
1756 if (vesa_adp != NULL) {
1757 if (vesa_adp_info->v_flags & V_DAC8) {
1758 bits = vesa_bios_get_dac();
1760 vesa_bios_save_palette(0, 256, palette, bits);
1761 vesa_bios_set_dac(6);
1762 vesa_bios_load_palette(0, 256, palette, 6);
1765 vesa_adp->va_flags &= ~V_ADP_VESA;
1766 vidsw[vesa_adp->va_index] = prevvidsw;
1770 if (vesa_vm86_buf != NULL)
1771 kfree(vesa_vm86_buf, M_DEVBUF);
1777 vesa_mod_event(module_t mod, int type, void *data)
1783 return vesa_unload();
1790 static moduledata_t vesa_mod = {
1796 DECLARE_MODULE(vesa, vesa_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
1798 #endif /* VGA_NO_MODE_CHANGE */