2 * Copyright (c) 1998 Kazutaka YOKOTA and Michael Smith
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer as
10 * the first lines of this file unmodified.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
33 #ifndef VGA_NO_MODE_CHANGE
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/module.h>
39 #include <sys/malloc.h>
43 #include <vm/vm_extern.h>
44 #include <vm/vm_kern.h>
45 #include <vm/vm_param.h>
48 #include <machine/pc/bios.h>
49 #include <dev/fb/vesa.h>
51 #include <dev/fb/fbreg.h>
52 #include <dev/fb/vgareg.h>
54 #include <isa/isareg.h>
56 #include <compat/x86bios/x86bios.h>
58 #define VESA_VIA_CLE266 "VIA CLE266\r\n"
64 /* VESA video adapter state buffer stub */
67 #define V_STATE_SIG 0x61736576
70 typedef struct adp_state adp_state_t;
72 /* VESA video adapter */
73 static video_adapter_t *vesa_adp = NULL;
74 static int vesa_state_buf_size = 0;
75 #define VESA_BIOS_BUFSIZE (3 * PAGE_SIZE)
79 static int vesa_nop(void);
81 static int vesa_error(void);
82 static vi_probe_t vesa_probe;
83 static vi_init_t vesa_init;
84 static vi_get_info_t vesa_get_info;
85 static vi_query_mode_t vesa_query_mode;
86 static vi_set_mode_t vesa_set_mode;
87 static vi_save_font_t vesa_save_font;
88 static vi_load_font_t vesa_load_font;
89 static vi_show_font_t vesa_show_font;
90 static vi_save_palette_t vesa_save_palette;
91 static vi_load_palette_t vesa_load_palette;
92 static vi_set_border_t vesa_set_border;
93 static vi_save_state_t vesa_save_state;
94 static vi_load_state_t vesa_load_state;
95 static vi_set_win_org_t vesa_set_origin;
96 static vi_read_hw_cursor_t vesa_read_hw_cursor;
97 static vi_set_hw_cursor_t vesa_set_hw_cursor;
98 static vi_set_hw_cursor_shape_t vesa_set_hw_cursor_shape;
99 static vi_blank_display_t vesa_blank_display;
100 static vi_mmap_t vesa_mmap;
101 static vi_ioctl_t vesa_ioctl;
102 static vi_clear_t vesa_clear;
103 static vi_fill_rect_t vesa_fill_rect;
104 static vi_bitblt_t vesa_bitblt;
105 static vi_diag_t vesa_diag;
106 static int vesa_bios_info(int level);
108 static video_switch_t vesavidsw = {
125 vesa_set_hw_cursor_shape,
137 static video_switch_t *prevvidsw;
139 /* VESA BIOS video modes */
140 #define VESA_MAXMODES 64
144 #define MODE_TABLE_DELTA 8
146 static int vesa_vmode_max = 0;
147 static video_info_t vesa_vmode_empty = { EOT };
148 static video_info_t *vesa_vmode = &vesa_vmode_empty;
150 static int vesa_init_done = FALSE;
151 static int has_vesa_bios = FALSE;
152 static struct vesa_info *vesa_adp_info = NULL;
153 static u_int16_t *vesa_vmodetab = NULL;
154 static char *vesa_oemstr = NULL;
155 static char *vesa_venderstr = NULL;
156 static char *vesa_prodstr = NULL;
157 static char *vesa_revstr = NULL;
159 /* local macros and functions */
160 #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff))
162 static int int10_set_mode(int mode);
163 static int vesa_bios_get_mode(int mode, struct vesa_mode *vmode);
164 static int vesa_bios_set_mode(int mode);
165 static int vesa_bios_get_dac(void);
166 static int vesa_bios_set_dac(int bits);
167 static int vesa_bios_save_palette(int start, int colors, u_char *palette,
169 static int vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g,
170 u_char *b, int bits);
171 static int vesa_bios_load_palette(int start, int colors, u_char *palette,
174 static int vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g,
175 u_char *b, int bits);
180 #define STATE_HW (1<<0)
181 #define STATE_DATA (1<<1)
182 #define STATE_DAC (1<<2)
183 #define STATE_REG (1<<3)
184 #define STATE_MOST (STATE_HW | STATE_DATA | STATE_REG)
185 #define STATE_ALL (STATE_HW | STATE_DATA | STATE_DAC | STATE_REG)
186 static int vesa_bios_state_buf_size(void);
187 static int vesa_bios_save_restore(int code, void *p, size_t size);
188 static int vesa_bios_get_line_length(void);
189 static int vesa_bios_set_line_length(int pixel, int *bytes, int *lines);
191 static int vesa_bios_get_start(int *x, int *y);
193 static int vesa_bios_set_start(int x, int y);
194 static int vesa_map_gen_mode_num(int type, int color, int mode);
195 static int vesa_translate_flags(u_int16_t vflags);
196 static int vesa_translate_mmodel(u_int8_t vmodel);
197 static int vesa_bios_init(void);
198 static void vesa_clear_modes(video_info_t *info, int color);
199 static vm_offset_t vesa_map_buffer(u_int paddr, size_t size);
200 static void vesa_unmap_buffer(vm_offset_t vaddr, size_t size);
203 static int vesa_get_origin(video_adapter_t *adp, off_t *offset);
207 dump_buffer(u_char *buf, size_t len)
211 for(i = 0; i < len;) {
212 printf("%02x ", buf[i]);
218 /* INT 10 BIOS calls */
220 int10_set_mode(int mode)
224 bzero(®s, sizeof(regs));
225 regs.R_EAX = 0x0000 | mode;
227 x86bios_intr(®s, 0x10);
232 /* VESA BIOS calls */
234 vesa_bios_get_mode(int mode, struct vesa_mode *vmode)
240 bzero(®s, sizeof(regs));
244 buf = (u_char *)x86bios_alloc(1, &offs);
246 regs.R_ES = SEG_ADDR(offs);
247 regs.R_DI = SEG_OFF(offs);
249 x86bios_intr(®s, 0x10);
251 if ((regs.R_AX & 0xff) != 0x4f)
253 x86bios_free(buf, 1);
257 bcopy(buf, vmode, sizeof(*vmode));
258 x86bios_free(buf, 1);
264 vesa_bios_set_mode(int mode)
268 bzero(®s, sizeof(regs));
272 x86bios_intr(®s, 0x10);
274 return ((regs.R_AX & 0xff) != 0x4f);
278 vesa_bios_get_dac(void)
282 bzero(®s, sizeof(regs));
286 x86bios_intr(®s, 0x10);
288 if ((regs.R_AX & 0xff) != 0x4f)
291 return ((regs.R_EBX >> 8) & 0x00ff);
295 vesa_bios_set_dac(int bits)
299 bzero(®s, sizeof(regs));
301 regs.R_EBX = (bits << 8);
303 x86bios_intr(®s, 0x10);
305 if ((regs.R_AX & 0xff) != 0x4f)
308 return ((regs.R_EBX >> 8) & 0x00ff);
312 vesa_bios_save_palette(int start, int colors, u_char *palette, int bits)
319 bzero(®s, sizeof(regs));
325 p = (u_char *)x86bios_alloc(1, &offs);
327 regs.R_ES = SEG_ADDR(offs);
328 regs.R_DI = SEG_OFF(offs);
330 x86bios_intr(®s, 0x10);
332 if ((regs.R_AX & 0xff) != 0x4f)
339 for (i = 0; i < colors; ++i) {
340 palette[i*3] = p[i*4 + 2] << bits;
341 palette[i*3 + 1] = p[i*4 + 1] << bits;
342 palette[i*3 + 2] = p[i*4] << bits;
350 vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, u_char *b,
358 bzero(®s, sizeof(regs));
364 p = (u_char *)x86bios_alloc(1, &offs);
366 regs.R_ES = SEG_ADDR(offs);
367 regs.R_DI = SEG_OFF(offs);
369 x86bios_intr(®s, 0x10);
371 if ((regs.R_AX & 0xff) != 0x4f)
378 for (i = 0; i < colors; ++i) {
379 r[i] = p[i*4 + 2] << bits;
380 g[i] = p[i*4 + 1] << bits;
381 b[i] = p[i*4] << bits;
389 vesa_bios_load_palette(int start, int colors, u_char *palette, int bits)
396 p = (u_char *)x86bios_alloc(1, &offs);
399 for (i = 0; i < colors; ++i) {
400 p[i*4] = palette[i*3 + 2] >> bits;
401 p[i*4 + 1] = palette[i*3 + 1] >> bits;
402 p[i*4 + 2] = palette[i*3] >> bits;
406 bzero(®s, sizeof(regs));
412 regs.R_ES = SEG_ADDR(offs);
413 regs.R_DI = SEG_OFF(offs);
415 x86bios_intr(®s, 0x10);
419 return ((regs.R_AX & 0xff) != 0x4f);
424 vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, u_char *b,
432 p = (u_char *)x86bios_alloc(1, &offs);
435 for (i = 0; i < colors; ++i) {
436 p[i*4] = b[i] >> bits;
437 p[i*4 + 1] = g[i] >> bits;
438 p[i*4 + 2] = r[i] >> bits;
442 bzero(®s, sizeof(regs));
448 regs.R_ES = SEG_ADDR(offs);
449 regs.R_DI = SEG_OFF(offs);
451 x86bios_intr(®s, 0x10);
455 return ((regs.R_AX & 0xff) != 0x4f);
460 vesa_bios_state_buf_size(void)
464 bzero(®s, sizeof(regs));
466 regs.R_ECX = STATE_ALL;
467 regs.R_EDX = STATE_SIZE;
469 x86bios_intr(®s, 0x10);
471 if ((regs.R_AX & 0xff) != 0x4f)
474 return regs.R_BX * 64;
478 vesa_bios_save_restore(int code, void *p, size_t size)
484 if (size > VESA_BIOS_BUFSIZE)
487 bzero(®s, sizeof(regs));
489 regs.R_ECX = STATE_ALL;
492 buf = (u_char *)x86bios_alloc(1, &offs);
494 regs.R_ES = SEG_ADDR(offs);
495 regs.R_DI = SEG_OFF(offs);
499 x86bios_intr(®s, 0x10);
505 return ((regs.R_AX & 0xff) != 0x4f);
509 vesa_bios_get_line_length(void)
513 bzero(®s, sizeof(regs));
517 x86bios_intr(®s, 0x10);
519 if ((regs.R_AX & 0xff) != 0x4f)
526 vesa_bios_set_line_length(int pixel, int *bytes, int *lines)
530 bzero(®s, sizeof(regs));
535 x86bios_intr(®s, 0x10);
538 printf("bx:%d, cx:%d, dx:%d\n", regs.R_BX, regs.R_CX, regs.R_DX);
540 if ((regs.R_AX & 0xff) != 0x4f)
553 vesa_bios_get_start(int *x, int *y)
557 bzero(®s, sizeof(regs));
561 x86bios_intr(®s, 0x10);
563 if ((regs.R_AX & 0xff) != 0x4f)
574 vesa_bios_set_start(int x, int y)
578 bzero(®s, sizeof(regs));
584 x86bios_intr(®s, 0x10);
586 return ((regs.R_AX & 0xff) != 0x4f);
589 /* map a generic video mode to a known mode */
591 vesa_map_gen_mode_num(int type, int color, int mode)
597 { M_TEXT_132x25, M_VESA_C132x25 },
598 { M_TEXT_132x43, M_VESA_C132x43 },
599 { M_TEXT_132x50, M_VESA_C132x50 },
600 { M_TEXT_132x60, M_VESA_C132x60 },
604 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) {
605 if (mode_map[i].from == mode)
606 return mode_map[i].to;
612 vesa_translate_flags(u_int16_t vflags)
619 { V_MODECOLOR, V_INFO_COLOR, 0 },
620 { V_MODEGRAPHICS, V_INFO_GRAPHICS, 0 },
621 { V_MODELFB, V_INFO_LINEAR, 0 },
626 for (flags = 0, i = 0; i < sizeof(ftable)/sizeof(ftable[0]); ++i) {
627 flags |= (vflags & ftable[i].mask) ?
628 ftable[i].set : ftable[i].reset;
634 vesa_translate_mmodel(u_int8_t vmodel)
640 { V_MMTEXT, V_INFO_MM_TEXT },
641 { V_MMCGA, V_INFO_MM_CGA },
642 { V_MMHGC, V_INFO_MM_HGC },
643 { V_MMEGA, V_INFO_MM_PLANAR },
644 { V_MMPACKED, V_INFO_MM_PACKED },
645 { V_MMDIRCOLOR, V_INFO_MM_DIRECT },
649 for (i = 0; mtable[i].mmodel >= 0; ++i) {
650 if (mtable[i].vmodel == vmodel)
651 return mtable[i].mmodel;
653 return V_INFO_MM_OTHER;
659 static struct vesa_info buf;
660 struct vesa_mode vmode;
672 has_vesa_bios = FALSE;
673 vesa_adp_info = NULL;
675 vesa_vmode[0].vi_mode = EOT;
677 vmbuf = (u_char *)x86bios_alloc(1, &offs);
678 bcopy("VBE2", vmbuf, 4); /* try for VBE2 data */
680 bzero(®s, sizeof(regs));
682 regs.R_ES = SEG_ADDR(offs);
683 regs.R_DI = SEG_OFF(offs);
685 x86bios_intr(®s, 0x10);
687 if (((regs.R_AX & 0xff) != 0x4f) || bcmp("VESA", vmbuf, 4))
690 bcopy(vmbuf, &buf, sizeof(buf));
692 vesa_adp_info = &buf;
694 printf("VESA: information block\n");
695 dump_buffer((u_char *)&buf, sizeof(buf));
697 if (vesa_adp_info->v_version < 0x0102) {
698 printf("VESA: VBE version %d.%d is not supported; "
699 "version 1.2 or later is required.\n",
700 ((vesa_adp_info->v_version & 0xf000) >> 12) * 10
701 + ((vesa_adp_info->v_version & 0x0f00) >> 8),
702 ((vesa_adp_info->v_version & 0x00f0) >> 4) * 10
703 + (vesa_adp_info->v_version & 0x000f));
707 vesa_oemstr = (char *)x86bios_offset(FARP(vesa_adp_info->v_oemstr));
709 is_via_cle266 = strcmp(vesa_oemstr, VESA_VIA_CLE266) == 0;
711 if (vesa_adp_info->v_version >= 0x0200) {
712 vesa_venderstr = (char *)x86bios_offset(FARP(vesa_adp_info->v_venderstr));
713 vesa_prodstr = (char *)x86bios_offset(FARP(vesa_adp_info->v_prodstr));
714 vesa_revstr = (char *)x86bios_offset(FARP(vesa_adp_info->v_revstr));
717 vesa_vmodetab = (uint16_t *)x86bios_offset(FARP(vesa_adp_info->v_modetable));
719 if (vesa_vmodetab == NULL)
722 for (i = 0, modes = 0;
723 (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1))
724 && (vesa_vmodetab[i] != 0xffff); ++i) {
725 if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode))
728 /* reject unsupported modes */
730 if ((vmode.v_modeattr & (V_MODESUPP | V_MODEOPTINFO
732 != (V_MODESUPP | V_MODEOPTINFO))
735 if ((vmode.v_modeattr & V_MODEOPTINFO) == 0) {
738 "Rejecting VESA %s mode: %d x %d x %d bpp attr = %x\n",
739 vmode.v_modeattr & V_MODEGRAPHICS ? "graphics" : "text",
740 vmode.v_width, vmode.v_height, vmode.v_bpp,
747 /* expand the array if necessary */
748 if (modes >= vesa_vmode_max) {
749 vesa_vmode_max += MODE_TABLE_DELTA;
750 p = malloc(sizeof(*vesa_vmode)*(vesa_vmode_max + 1),
753 printf("vesa_bios_init(): modes:%d, vesa_mode_max:%d\n",
754 modes, vesa_vmode_max);
757 bcopy(vesa_vmode, p, sizeof(*vesa_vmode)*modes);
758 free(vesa_vmode, M_DEVBUF);
764 printf("Found VESA %s mode: %d x %d x %d bpp\n",
765 vmode.v_modeattr & V_MODEGRAPHICS ? "graphics" : "text",
766 vmode.v_width, vmode.v_height, vmode.v_bpp);
769 if ((vmode.v_width & 0xff00) >> 8 == vmode.v_height - 1) {
770 vmode.v_width &= 0xff;
771 vmode.v_waseg = 0xb8000 >> 4;
775 /* copy some fields */
776 bzero(&vesa_vmode[modes], sizeof(vesa_vmode[modes]));
777 vesa_vmode[modes].vi_mode = vesa_vmodetab[i];
778 vesa_vmode[modes].vi_width = vmode.v_width;
779 vesa_vmode[modes].vi_height = vmode.v_height;
780 vesa_vmode[modes].vi_depth = vmode.v_bpp;
781 vesa_vmode[modes].vi_planes = vmode.v_planes;
782 vesa_vmode[modes].vi_cwidth = vmode.v_cwidth;
783 vesa_vmode[modes].vi_cheight = vmode.v_cheight;
784 vesa_vmode[modes].vi_window = (u_int)vmode.v_waseg << 4;
786 vesa_vmode[modes].vi_window_size = vmode.v_wsize*1024;
787 vesa_vmode[modes].vi_window_gran = vmode.v_wgran*1024;
788 if (vmode.v_modeattr & V_MODELFB)
789 vesa_vmode[modes].vi_buffer = vmode.v_lfb;
791 vesa_vmode[modes].vi_buffer = 0;
793 vesa_vmode[modes].vi_buffer_size
794 = vesa_adp_info->v_memsize*64*1024;
796 if (vmode.v_offscreen > vmode.v_lfb)
797 vesa_vmode[modes].vi_buffer_size
798 = vmode.v_offscreen + vmode.v_offscreensize*1024
801 vesa_vmode[modes].vi_buffer_size
802 = vmode.v_offscreen + vmode.v_offscreensize * 1024;
804 vesa_vmode[modes].vi_mem_model
805 = vesa_translate_mmodel(vmode.v_memmodel);
806 vesa_vmode[modes].vi_pixel_fields[0] = 0;
807 vesa_vmode[modes].vi_pixel_fields[1] = 0;
808 vesa_vmode[modes].vi_pixel_fields[2] = 0;
809 vesa_vmode[modes].vi_pixel_fields[3] = 0;
810 vesa_vmode[modes].vi_pixel_fsizes[0] = 0;
811 vesa_vmode[modes].vi_pixel_fsizes[1] = 0;
812 vesa_vmode[modes].vi_pixel_fsizes[2] = 0;
813 vesa_vmode[modes].vi_pixel_fsizes[3] = 0;
814 if (vesa_vmode[modes].vi_mem_model == V_INFO_MM_PACKED) {
815 vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7)/8;
816 } else if (vesa_vmode[modes].vi_mem_model == V_INFO_MM_DIRECT) {
817 vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7)/8;
818 vesa_vmode[modes].vi_pixel_fields[0]
819 = vmode.v_redfieldpos;
820 vesa_vmode[modes].vi_pixel_fields[1]
821 = vmode.v_greenfieldpos;
822 vesa_vmode[modes].vi_pixel_fields[2]
823 = vmode.v_bluefieldpos;
824 vesa_vmode[modes].vi_pixel_fields[3]
825 = vmode.v_resfieldpos;
826 vesa_vmode[modes].vi_pixel_fsizes[0]
827 = vmode.v_redmasksize;
828 vesa_vmode[modes].vi_pixel_fsizes[1]
829 = vmode.v_greenmasksize;
830 vesa_vmode[modes].vi_pixel_fsizes[2]
831 = vmode.v_bluemasksize;
832 vesa_vmode[modes].vi_pixel_fsizes[3]
833 = vmode.v_resmasksize;
835 vesa_vmode[modes].vi_pixel_size = 0;
838 vesa_vmode[modes].vi_flags
839 = vesa_translate_flags(vmode.v_modeattr) | V_INFO_VESA;
842 vesa_vmode[modes].vi_mode = EOT;
844 x86bios_free(vmbuf, 1);
847 printf("VESA: %d mode(s) found\n", modes);
849 has_vesa_bios = (modes > 0);
857 vesa_clear_modes(video_info_t *info, int color)
859 while (info->vi_mode != EOT) {
860 if ((info->vi_flags & V_INFO_COLOR) != color)
867 vesa_map_buffer(u_int paddr, size_t size)
872 off = paddr - trunc_page(paddr);
873 vaddr = (vm_offset_t)pmap_mapdev_attr(paddr - off, size + off,
874 PAT_WRITE_COMBINING);
876 printf("vesa_map_buffer: paddr:%x vaddr:%tx size:%zx off:%x\n",
877 paddr, vaddr, size, off);
879 return (vaddr + off);
883 vesa_unmap_buffer(vm_offset_t vaddr, size_t size)
886 printf("vesa_unmap_buffer: vaddr:%tx size:%zx\n", vaddr, size);
888 kmem_free(kernel_map, vaddr, size);
894 vesa_configure(int flags)
896 video_adapter_t *adp;
903 if (flags & VIO_PROBE_ONLY)
907 * If the VESA module has already been loaded, abort loading
908 * the module this time.
910 for (i = 0; (adp = vid_get_adapter(i)) != NULL; ++i) {
911 if (adp->va_flags & V_ADP_VESA)
913 if (adp->va_type == KD_VGA)
917 * The VGA adapter is not found. This is because either
918 * 1) the VGA driver has not been initialized, or 2) the VGA card
919 * is not present. If 1) is the case, we shall defer
920 * initialization for now and try again later.
923 vga_sub_configure = vesa_configure;
927 /* count number of registered adapters */
928 for (++i; vid_get_adapter(i) != NULL; ++i)
934 if (vesa_bios_init()) {
938 vesa_adp->va_flags |= V_ADP_VESA;
940 /* remove conflicting modes if we have more than one adapter */
942 vesa_clear_modes(vesa_vmode,
943 (vesa_adp->va_flags & V_ADP_COLOR) ?
947 if ((error = vesa_load_ioctl()) == 0) {
948 prevvidsw = vidsw[vesa_adp->va_index];
949 vidsw[vesa_adp->va_index] = &vesavidsw;
950 vesa_init_done = TRUE;
974 vesa_probe(int unit, video_adapter_t **adpp, void *arg, int flags)
976 return (*prevvidsw->probe)(unit, adpp, arg, flags);
980 vesa_init(int unit, video_adapter_t *adp, int flags)
982 return (*prevvidsw->init)(unit, adp, flags);
986 vesa_get_info(video_adapter_t *adp, int mode, video_info_t *info)
990 if ((*prevvidsw->get_info)(adp, mode, info) == 0)
996 mode = vesa_map_gen_mode_num(vesa_adp->va_type,
997 vesa_adp->va_flags & V_ADP_COLOR, mode);
998 for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) {
999 if (vesa_vmode[i].vi_mode == NA)
1001 if (vesa_vmode[i].vi_mode == mode) {
1002 *info = vesa_vmode[i];
1010 vesa_query_mode(video_adapter_t *adp, video_info_t *info)
1014 if ((*prevvidsw->query_mode)(adp, info) == 0)
1016 if (adp != vesa_adp)
1019 for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) {
1020 if ((info->vi_width != 0)
1021 && (info->vi_width != vesa_vmode[i].vi_width))
1023 if ((info->vi_height != 0)
1024 && (info->vi_height != vesa_vmode[i].vi_height))
1026 if ((info->vi_cwidth != 0)
1027 && (info->vi_cwidth != vesa_vmode[i].vi_cwidth))
1029 if ((info->vi_cheight != 0)
1030 && (info->vi_cheight != vesa_vmode[i].vi_cheight))
1032 if ((info->vi_depth != 0)
1033 && (info->vi_depth != vesa_vmode[i].vi_depth))
1035 if ((info->vi_planes != 0)
1036 && (info->vi_planes != vesa_vmode[i].vi_planes))
1038 /* pixel format, memory model */
1039 if ((info->vi_flags != 0)
1040 && (info->vi_flags != vesa_vmode[i].vi_flags))
1042 *info = vesa_vmode[i];
1049 vesa_set_mode(video_adapter_t *adp, int mode)
1054 if (adp != vesa_adp)
1055 return (*prevvidsw->set_mode)(adp, mode);
1057 mode = vesa_map_gen_mode_num(adp->va_type,
1058 adp->va_flags & V_ADP_COLOR, mode);
1060 printf("VESA: set_mode(): %d(%x) -> %d(%x)\n",
1061 adp->va_mode, adp->va_mode, mode, mode);
1064 * If the current mode is a VESA mode and the new mode is not,
1065 * restore the state of the adapter first by setting one of the
1066 * standard VGA mode, so that non-standard, extended SVGA registers
1067 * are set to the state compatible with the standard VGA modes.
1068 * Otherwise (*prevvidsw->set_mode)() may not be able to set up
1069 * the new mode correctly.
1071 if (VESA_MODE(adp->va_mode)) {
1072 if ((*prevvidsw->get_info)(adp, mode, &info) == 0) {
1073 int10_set_mode(adp->va_initial_bios_mode);
1074 if (adp->va_info.vi_flags & V_INFO_LINEAR)
1075 vesa_unmap_buffer(adp->va_buffer,
1076 vesa_adp_info->v_memsize*64*1024);
1078 * Once (*prevvidsw->get_info)() succeeded,
1079 * (*prevvidsw->set_mode)() below won't fail...
1084 /* we may not need to handle this mode after all... */
1085 if ((*prevvidsw->set_mode)(adp, mode) == 0)
1088 /* is the new mode supported? */
1089 if (vesa_get_info(adp, mode, &info))
1091 /* assert(VESA_MODE(mode)); */
1094 printf("VESA: about to set a VESA mode...\n");
1096 /* don't use the linear frame buffer for text modes. XXX */
1097 if (!(info.vi_flags & V_INFO_GRAPHICS))
1098 info.vi_flags &= ~V_INFO_LINEAR;
1100 if (vesa_bios_set_mode(mode | ((info.vi_flags & V_INFO_LINEAR) ? 0x4000 : 0)))
1103 if (adp->va_info.vi_flags & V_INFO_LINEAR)
1104 vesa_unmap_buffer(adp->va_buffer,
1105 vesa_adp_info->v_memsize*64*1024);
1108 printf("VESA: mode set!\n");
1110 vesa_adp->va_mode = mode;
1111 vesa_adp->va_flags &= ~V_ADP_COLOR;
1112 vesa_adp->va_flags |=
1113 (info.vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0;
1114 vesa_adp->va_crtc_addr =
1115 (vesa_adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC;
1116 if (info.vi_flags & V_INFO_LINEAR) {
1118 printf("VESA: setting up LFB\n");
1120 vesa_adp->va_buffer =
1121 vesa_map_buffer(info.vi_buffer,
1122 vesa_adp_info->v_memsize*64*1024);
1123 vesa_adp->va_buffer_size = info.vi_buffer_size;
1124 vesa_adp->va_window = vesa_adp->va_buffer;
1125 vesa_adp->va_window_size = info.vi_buffer_size/info.vi_planes;
1126 vesa_adp->va_window_gran = info.vi_buffer_size/info.vi_planes;
1128 vesa_adp->va_buffer = 0;
1129 vesa_adp->va_buffer_size = info.vi_buffer_size;
1130 vesa_adp->va_window = BIOS_PADDRTOVADDR(info.vi_window);
1131 vesa_adp->va_window_size = info.vi_window_size;
1132 vesa_adp->va_window_gran = info.vi_window_gran;
1134 vesa_adp->va_window_orig = 0;
1136 if (info.vi_flags & V_INFO_GRAPHICS) {
1137 switch (info.vi_depth/info.vi_planes) {
1139 vesa_adp->va_line_width = info.vi_width/8;
1142 vesa_adp->va_line_width = info.vi_width/4;
1145 vesa_adp->va_line_width = info.vi_width/2;
1148 default: /* shouldn't happen */
1149 vesa_adp->va_line_width = info.vi_width;
1153 vesa_adp->va_line_width = info.vi_width*2;
1157 vesa_adp->va_line_width = info.vi_width*4;
1161 vesa_adp->va_line_width = info.vi_width;
1162 len = vesa_bios_get_line_length();
1164 vesa_adp->va_line_width = len;
1166 vesa_adp->va_disp_start.x = 0;
1167 vesa_adp->va_disp_start.y = 0;
1169 printf("vesa_set_mode(): vi_width:%d, len:%d, line_width:%d\n",
1170 info.vi_width, len, vesa_adp->va_line_width);
1172 bcopy(&info, &vesa_adp->va_info, sizeof(vesa_adp->va_info));
1174 /* move hardware cursor out of the way */
1175 (*vidsw[vesa_adp->va_index]->set_hw_cursor)(vesa_adp, -1, -1);
1181 vesa_save_font(video_adapter_t *adp, int page, int fontsize, int fontwidth,
1182 u_char *data, int ch, int count)
1184 return (*prevvidsw->save_font)(adp, page, fontsize, fontwidth, data,
1189 vesa_load_font(video_adapter_t *adp, int page, int fontsize, int fontwidth,
1190 u_char *data, int ch, int count)
1192 return (*prevvidsw->load_font)(adp, page, fontsize, fontwidth, data,
1197 vesa_show_font(video_adapter_t *adp, int page)
1199 return (*prevvidsw->show_font)(adp, page);
1203 vesa_save_palette(video_adapter_t *adp, u_char *palette)
1208 if ((adp == vesa_adp) && (vesa_adp_info->v_flags & V_DAC8)
1209 && VESA_MODE(adp->va_mode)) {
1210 bits = vesa_bios_get_dac();
1211 error = vesa_bios_save_palette(0, 256, palette, bits);
1218 return (*prevvidsw->save_palette)(adp, palette);
1222 vesa_load_palette(video_adapter_t *adp, u_char *palette)
1228 if ((adp == vesa_adp) && (vesa_adp_info->v_flags & V_DAC8)
1229 && VESA_MODE(adp->va_mode) && ((bits = vesa_bios_set_dac(8)) > 6)) {
1230 error = vesa_bios_load_palette(0, 256, palette, bits);
1233 if (vesa_bios_set_dac(6) != 6)
1238 return (*prevvidsw->load_palette)(adp, palette);
1242 vesa_set_border(video_adapter_t *adp, int color)
1244 return (*prevvidsw->set_border)(adp, color);
1248 vesa_save_state(video_adapter_t *adp, void *p, size_t size)
1250 if (adp != vesa_adp)
1251 return (*prevvidsw->save_state)(adp, p, size);
1253 if (vesa_state_buf_size == 0)
1254 vesa_state_buf_size = vesa_bios_state_buf_size();
1256 return (sizeof(int) + vesa_state_buf_size);
1257 else if (size < (sizeof(int) + vesa_state_buf_size))
1260 ((adp_state_t *)p)->sig = V_STATE_SIG;
1261 bzero(((adp_state_t *)p)->regs, vesa_state_buf_size);
1262 return vesa_bios_save_restore(STATE_SAVE, ((adp_state_t *)p)->regs,
1263 vesa_state_buf_size);
1267 vesa_load_state(video_adapter_t *adp, void *p)
1269 if ((adp != vesa_adp) || (((adp_state_t *)p)->sig != V_STATE_SIG))
1270 return (*prevvidsw->load_state)(adp, p);
1272 return vesa_bios_save_restore(STATE_LOAD, ((adp_state_t *)p)->regs,
1273 vesa_state_buf_size);
1278 vesa_get_origin(video_adapter_t *adp, off_t *offset)
1282 bzero(®s, sizeof(regs));
1283 regs.R_EAX = 0x4f05;
1286 x86bios_intr(®s, 0x10);
1288 if ((regs.R_AX & 0xff) != 0x4f)
1290 *offset = regs.DX * adp->va_window_gran;
1297 vesa_set_origin(video_adapter_t *adp, off_t offset)
1302 * This function should return as quickly as possible to
1303 * maintain good performance of the system. For this reason,
1304 * error checking is kept minimal and let the VESA BIOS to
1307 if (adp != vesa_adp)
1308 return (*prevvidsw->set_win_org)(adp, offset);
1310 /* if this is a linear frame buffer, do nothing */
1311 if (adp->va_info.vi_flags & V_INFO_LINEAR)
1314 if (adp->va_window_gran == 0)
1317 bzero(®s, sizeof(regs));
1318 regs.R_EAX = 0x4f05;
1320 regs.R_EDX = offset / adp->va_window_gran;
1321 x86bios_intr(®s, 0x10);
1323 if ((regs.R_AX & 0xff) != 0x4f)
1326 bzero(®s, sizeof(regs));
1327 regs.R_EAX = 0x4f05;
1329 regs.R_EDX = offset / adp->va_window_gran;
1330 x86bios_intr(®s, 0x10);
1332 adp->va_window_orig = (offset/adp->va_window_gran)*adp->va_window_gran;
1337 vesa_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
1339 return (*prevvidsw->read_hw_cursor)(adp, col, row);
1343 vesa_set_hw_cursor(video_adapter_t *adp, int col, int row)
1345 return (*prevvidsw->set_hw_cursor)(adp, col, row);
1349 vesa_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
1350 int celsize, int blink)
1352 return (*prevvidsw->set_hw_cursor_shape)(adp, base, height, celsize,
1357 vesa_blank_display(video_adapter_t *adp, int mode)
1359 /* XXX: use VESA DPMS */
1360 return (*prevvidsw->blank_display)(adp, mode);
1364 vesa_mmap(video_adapter_t *adp, vm_offset_t offset, vm_paddr_t *paddr,
1368 printf("vesa_mmap(): window:0x%tx, buffer:0x%tx, offset:0x%tx\n",
1369 adp->va_info.vi_window, adp->va_info.vi_buffer, offset);
1372 if ((adp == vesa_adp) && (adp->va_info.vi_flags & V_INFO_LINEAR)) {
1373 /* va_window_size == va_buffer_size/vi_planes */
1374 /* XXX: is this correct? */
1375 if (offset > adp->va_window_size - PAGE_SIZE)
1377 *paddr = adp->va_info.vi_buffer + offset;
1380 return (*prevvidsw->mmap)(adp, offset, paddr, prot);
1385 vesa_clear(video_adapter_t *adp)
1387 return (*prevvidsw->clear)(adp);
1391 vesa_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
1393 return (*prevvidsw->fill_rect)(adp, val, x, y, cx, cy);
1397 vesa_bitblt(video_adapter_t *adp,...)
1404 get_palette(video_adapter_t *adp, int base, int count,
1405 u_char *red, u_char *green, u_char *blue, u_char *trans)
1413 if ((base < 0) || (base >= 256) || (count < 0) || (count > 256))
1415 if ((base + count) > 256)
1417 if (!(vesa_adp_info->v_flags & V_DAC8) || !VESA_MODE(adp->va_mode))
1420 bits = vesa_bios_get_dac();
1424 r = malloc(count*3, M_DEVBUF, M_WAITOK);
1427 error = vesa_bios_save_palette2(base, count, r, g, b, bits);
1429 copyout(r, red, count);
1430 copyout(g, green, count);
1431 copyout(b, blue, count);
1432 if (trans != NULL) {
1434 copyout(r, trans, count);
1439 /* if error && bits != 6 at this point, we are in trouble... XXX */
1444 set_palette(video_adapter_t *adp, int base, int count,
1445 u_char *red, u_char *green, u_char *blue, u_char *trans)
1455 if ((base < 0) || (base >= 256) || (base + count > 256))
1457 if (!(vesa_adp_info->v_flags & V_DAC8) || !VESA_MODE(adp->va_mode)
1458 || ((bits = vesa_bios_set_dac(8)) <= 6))
1461 r = malloc(count*3, M_DEVBUF, M_WAITOK);
1464 copyin(red, r, count);
1465 copyin(green, g, count);
1466 copyin(blue, b, count);
1468 error = vesa_bios_load_palette2(base, count, r, g, b, bits);
1473 /* if the following call fails, we are in trouble... XXX */
1474 vesa_bios_set_dac(6);
1480 vesa_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg)
1484 if (adp != vesa_adp)
1485 return (*prevvidsw->ioctl)(adp, cmd, arg);
1488 case FBIO_SETWINORG: /* set frame buffer window origin */
1489 if (!VESA_MODE(adp->va_mode))
1490 return (*prevvidsw->ioctl)(adp, cmd, arg);
1491 return (vesa_set_origin(adp, *(off_t *)arg) ? ENODEV : 0);
1493 case FBIO_SETDISPSTART: /* set display start address */
1494 if (!VESA_MODE(adp->va_mode))
1495 return (*prevvidsw->ioctl)(adp, cmd, arg);
1496 if (vesa_bios_set_start(((video_display_start_t *)arg)->x,
1497 ((video_display_start_t *)arg)->y))
1499 adp->va_disp_start.x = ((video_display_start_t *)arg)->x;
1500 adp->va_disp_start.y = ((video_display_start_t *)arg)->y;
1503 case FBIO_SETLINEWIDTH: /* set line length in pixel */
1504 if (!VESA_MODE(adp->va_mode))
1505 return (*prevvidsw->ioctl)(adp, cmd, arg);
1506 if (vesa_bios_set_line_length(*(u_int *)arg, &bytes, NULL))
1508 adp->va_line_width = bytes;
1510 printf("new line width:%d\n", adp->va_line_width);
1514 case FBIO_GETPALETTE: /* get color palette */
1515 if (get_palette(adp, ((video_color_palette_t *)arg)->index,
1516 ((video_color_palette_t *)arg)->count,
1517 ((video_color_palette_t *)arg)->red,
1518 ((video_color_palette_t *)arg)->green,
1519 ((video_color_palette_t *)arg)->blue,
1520 ((video_color_palette_t *)arg)->transparent))
1521 return (*prevvidsw->ioctl)(adp, cmd, arg);
1525 case FBIO_SETPALETTE: /* set color palette */
1526 if (set_palette(adp, ((video_color_palette_t *)arg)->index,
1527 ((video_color_palette_t *)arg)->count,
1528 ((video_color_palette_t *)arg)->red,
1529 ((video_color_palette_t *)arg)->green,
1530 ((video_color_palette_t *)arg)->blue,
1531 ((video_color_palette_t *)arg)->transparent))
1532 return (*prevvidsw->ioctl)(adp, cmd, arg);
1535 case FBIOGETCMAP: /* get color palette */
1536 if (get_palette(adp, ((struct fbcmap *)arg)->index,
1537 ((struct fbcmap *)arg)->count,
1538 ((struct fbcmap *)arg)->red,
1539 ((struct fbcmap *)arg)->green,
1540 ((struct fbcmap *)arg)->blue, NULL))
1541 return (*prevvidsw->ioctl)(adp, cmd, arg);
1544 case FBIOPUTCMAP: /* set color palette */
1545 if (set_palette(adp, ((struct fbcmap *)arg)->index,
1546 ((struct fbcmap *)arg)->count,
1547 ((struct fbcmap *)arg)->red,
1548 ((struct fbcmap *)arg)->green,
1549 ((struct fbcmap *)arg)->blue, NULL))
1550 return (*prevvidsw->ioctl)(adp, cmd, arg);
1554 return (*prevvidsw->ioctl)(adp, cmd, arg);
1559 vesa_diag(video_adapter_t *adp, int level)
1563 /* call the previous handler first */
1564 error = (*prevvidsw->diag)(adp, level);
1568 if (adp != vesa_adp)
1578 vesa_bios_info(int level)
1581 struct vesa_mode vmode;
1586 /* general adapter information */
1588 "VESA: v%d.%d, %dk memory, flags:0x%x, mode table:%p (%x)\n",
1589 ((vesa_adp_info->v_version & 0xf000) >> 12) * 10 +
1590 ((vesa_adp_info->v_version & 0x0f00) >> 8),
1591 ((vesa_adp_info->v_version & 0x00f0) >> 4) * 10 +
1592 (vesa_adp_info->v_version & 0x000f),
1593 vesa_adp_info->v_memsize * 64, vesa_adp_info->v_flags,
1594 vesa_vmodetab, vesa_adp_info->v_modetable);
1597 if (vesa_oemstr != NULL)
1598 printf("VESA: %s\n", vesa_oemstr);
1604 if (vesa_adp_info->v_version >= 0x0200 && bootverbose) {
1605 /* vender name, product name, product revision */
1606 printf("VESA: %s %s %s\n",
1607 (vesa_venderstr != NULL) ? vesa_venderstr : "unknown",
1608 (vesa_prodstr != NULL) ? vesa_prodstr : "unknown",
1609 (vesa_revstr != NULL) ? vesa_revstr : "?");
1613 /* mode information */
1615 (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1))
1616 && (vesa_vmodetab[i] != 0xffff); ++i) {
1617 if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode))
1620 /* print something for diagnostic purpose */
1621 printf("VESA: mode:0x%03x, flags:0x%04x",
1622 vesa_vmodetab[i], vmode.v_modeattr);
1623 if (vmode.v_modeattr & V_MODEOPTINFO) {
1624 if (vmode.v_modeattr & V_MODEGRAPHICS) {
1625 printf(", G %dx%dx%d %d, ",
1626 vmode.v_width, vmode.v_height,
1627 vmode.v_bpp, vmode.v_planes);
1629 printf(", T %dx%d, ",
1630 vmode.v_width, vmode.v_height);
1632 printf("font:%dx%d, ",
1633 vmode.v_cwidth, vmode.v_cheight);
1634 printf("pages:%d, mem:%d",
1635 vmode.v_ipages + 1, vmode.v_memmodel);
1637 if (vmode.v_modeattr & V_MODELFB) {
1638 printf("\nVESA: LFB:0x%x, off:0x%x, off_size:0x%x",
1639 vmode.v_lfb, vmode.v_offscreen,
1640 vmode.v_offscreensize*1024);
1643 printf("VESA: window A:0x%x (%x), window B:0x%x (%x), ",
1644 vmode.v_waseg, vmode.v_waattr,
1645 vmode.v_wbseg, vmode.v_wbattr);
1646 printf("size:%dk, gran:%dk\n",
1647 vmode.v_wsize, vmode.v_wgran);
1649 #endif /* VESA_DEBUG > 1 */
1654 /* module loading */
1665 /* locate a VGA adapter */
1668 error = vesa_configure(0);
1672 vesa_bios_info(bootverbose);
1680 u_char palette[256*3];
1685 /* if the adapter is currently in a VESA mode, don't unload */
1686 if ((vesa_adp != NULL) && VESA_MODE(vesa_adp->va_mode))
1689 * FIXME: if there is at least one vty which is in a VESA mode,
1690 * we shouldn't be unloading! XXX
1694 if ((error = vesa_unload_ioctl()) == 0) {
1695 if (vesa_adp != NULL) {
1696 if (vesa_adp_info->v_flags & V_DAC8) {
1697 bits = vesa_bios_get_dac();
1699 vesa_bios_save_palette(0, 256,
1701 vesa_bios_set_dac(6);
1702 vesa_bios_load_palette(0, 256,
1706 vesa_adp->va_flags &= ~V_ADP_VESA;
1707 vidsw[vesa_adp->va_index] = prevvidsw;
1716 vesa_mod_event(module_t mod, int type, void *data)
1722 return vesa_unload();
1729 static moduledata_t vesa_mod = {
1735 DECLARE_MODULE(vesa, vesa_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
1736 MODULE_DEPEND(vesa, x86bios, 1, 1, 1);
1738 #endif /* VGA_NO_MODE_CHANGE */