2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
3 * Copyright (c) 1992-1998 Søren Schmidt
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.
15 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 * $FreeBSD: src/sys/dev/fb/vga.c,v 1.9.2.1 2001/08/11 02:58:44 yokota Exp $
30 * $DragonFly: src/sys/dev/video/fb/vga.c,v 1.25 2008/01/19 08:50:12 swildner Exp $
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/kernel.h>
40 #include <sys/fcntl.h>
41 #include <sys/malloc.h>
43 #include <sys/thread2.h>
45 #include <bus/isa/isareg.h>
47 #include <machine/clock.h>
48 #include <machine/md_var.h>
50 #include <machine/pc/bios.h>
54 #include <vm/vm_param.h>
64 /* machine/pc/bios.h has got too much i386-specific stuff in it */
65 #ifndef BIOS_PADDRTOVADDR
66 #define BIOS_PADDRTOVADDR(x) (((x) - ISA_HOLE_START) + atdevbase)
69 vga_probe_unit(int unit, video_adapter_t *buf, int flags)
75 sw = vid_get_switch(VGA_DRIVER_NAME);
78 error = (*sw->probe)(unit, &adp, NULL, flags);
81 bcopy(adp, buf, sizeof(*buf));
86 vga_attach_unit(int unit, vga_softc_t *sc, int flags)
91 sw = vid_get_switch(VGA_DRIVER_NAME);
95 error = (*sw->probe)(unit, &sc->adp, NULL, flags);
98 return (*sw->init)(unit, sc->adp, flags);
101 /* cdev driver functions */
103 #ifdef FB_INSTALL_CDEV
108 vga_open(cdev_t dev, vga_softc_t *sc, int flag, int mode, struct ucred *cred)
112 if (mode & (O_CREAT | O_APPEND | O_TRUNC))
115 return genfbopen(&sc->gensc, sc->adp, flag, mode, cred);
119 vga_close(cdev_t dev, vga_softc_t *sc, int flag, int mode)
121 return genfbclose(&sc->gensc, sc->adp, flag, mode);
125 vga_read(cdev_t dev, vga_softc_t *sc, struct uio *uio, int flag)
127 return genfbread(&sc->gensc, sc->adp, uio, flag);
131 vga_write(cdev_t dev, vga_softc_t *sc, struct uio *uio, int flag)
133 return genfbread(&sc->gensc, sc->adp, uio, flag);
137 vga_ioctl(cdev_t dev, vga_softc_t *sc, u_long cmd, caddr_t arg, int flag,
140 return genfbioctl(&sc->gensc, sc->adp, cmd, arg, flag, cred);
144 vga_mmap(cdev_t dev, vga_softc_t *sc, vm_offset_t offset, int prot)
146 return genfbmmap(&sc->gensc, sc->adp, offset, prot);
149 #endif /* FB_INSTALL_CDEV */
153 #define probe_done(adp) ((adp)->va_flags & V_ADP_PROBED)
154 #define init_done(adp) ((adp)->va_flags & V_ADP_INITIALIZED)
155 #define config_done(adp) ((adp)->va_flags & V_ADP_REGISTERED)
158 #define V_MODE_MAP_SIZE (M_VGA_CG320 + 1)
159 #define V_MODE_PARAM_SIZE 64
161 /* video adapter state buffer */
164 #define V_STATE_SIG 0x736f6962
165 u_char regs[V_MODE_PARAM_SIZE];
167 typedef struct adp_state adp_state_t;
170 * NOTE: `va_window' should have a virtual address, but is initialized
171 * with a physical address in the following table, as verify_adapter()
172 * will perform address conversion at run-time.
174 static video_adapter_t biosadapter = {
175 0, KD_VGA, VGA_DRIVER_NAME, 0, 0, V_ADP_COLOR, IO_VGA, 32,
176 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE,
177 0, 0, 0, M_VGA_C80x25, M_C80x25, M_VGA_C80x25
180 /* video driver declarations */
181 static int vga_configure(int flags);
182 int (*vga_sub_configure)(int flags);
184 static int vga_nop(void);
186 static int vga_error(void);
187 static vi_probe_t vga_probe;
188 static vi_init_t vga_init;
189 static vi_get_info_t vga_get_info;
190 static vi_query_mode_t vga_query_mode;
191 static vi_set_mode_t vga_set_mode;
192 static vi_save_font_t vga_save_font;
193 static vi_load_font_t vga_load_font;
194 static vi_show_font_t vga_show_font;
195 static vi_save_palette_t vga_save_palette;
196 static vi_load_palette_t vga_load_palette;
197 static vi_set_border_t vga_set_border;
198 static vi_save_state_t vga_save_state;
199 static vi_load_state_t vga_load_state;
200 static vi_set_win_org_t vga_set_origin;
201 static vi_read_hw_cursor_t vga_read_hw_cursor;
202 static vi_set_hw_cursor_t vga_set_hw_cursor;
203 static vi_set_hw_cursor_shape_t vga_set_hw_cursor_shape;
204 static vi_blank_display_t vga_blank_display;
205 static vi_mmap_t vga_mmap_buf;
206 static vi_ioctl_t vga_dev_ioctl;
207 #ifndef VGA_NO_MODE_CHANGE
208 static vi_clear_t vga_clear;
209 static vi_fill_rect_t vga_fill_rect;
210 static vi_bitblt_t vga_bitblt;
211 #else /* VGA_NO_MODE_CHANGE */
212 #define vga_clear (vi_clear_t *)vga_error
213 #define vga_fill_rect (vi_fill_rect_t *)vga_error
214 #define vga_bitblt (vi_bitblt_t *)vga_error
216 static vi_diag_t vga_diag;
218 static video_switch_t vgavidsw = {
235 vga_set_hw_cursor_shape,
247 VIDEO_DRIVER(vga, vgavidsw, vga_configure);
249 /* VGA BIOS standard video modes */
253 static video_info_t bios_vmode[] = {
255 { M_B40x25, V_INFO_COLOR, 40, 25, 8, 8, 2, 1,
256 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
257 { M_C40x25, V_INFO_COLOR, 40, 25, 8, 8, 4, 1,
258 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
259 { M_B80x25, V_INFO_COLOR, 80, 25, 8, 8, 2, 1,
260 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
261 { M_C80x25, V_INFO_COLOR, 80, 25, 8, 8, 4, 1,
262 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
264 { M_ENH_B40x25, V_INFO_COLOR, 40, 25, 8, 14, 2, 1,
265 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
266 { M_ENH_C40x25, V_INFO_COLOR, 40, 25, 8, 14, 4, 1,
267 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
268 { M_ENH_B80x25, V_INFO_COLOR, 80, 25, 8, 14, 2, 1,
269 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
270 { M_ENH_C80x25, V_INFO_COLOR, 80, 25, 8, 14, 4, 1,
271 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
273 { M_VGA_C40x25, V_INFO_COLOR, 40, 25, 8, 16, 4, 1,
274 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
275 { M_VGA_M80x25, 0, 80, 25, 8, 16, 2, 1,
276 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
277 { M_VGA_C80x25, V_INFO_COLOR, 80, 25, 8, 16, 4, 1,
278 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
280 { M_EGAMONO80x25, 0, 80, 25, 8, 14, 2, 1,
281 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
283 { M_ENH_B80x43, 0, 80, 43, 8, 8, 2, 1,
284 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
285 { M_ENH_C80x43, V_INFO_COLOR, 80, 43, 8, 8, 4, 1,
286 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
288 { M_VGA_M80x30, 0, 80, 30, 8, 16, 2, 1,
289 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
290 { M_VGA_C80x30, V_INFO_COLOR, 80, 30, 8, 16, 4, 1,
291 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
292 { M_VGA_M80x50, 0, 80, 50, 8, 8, 2, 1,
293 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
294 { M_VGA_C80x50, V_INFO_COLOR, 80, 50, 8, 8, 4, 1,
295 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
296 { M_VGA_M80x60, 0, 80, 60, 8, 8, 2, 1,
297 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
298 { M_VGA_C80x60, V_INFO_COLOR, 80, 60, 8, 8, 4, 1,
299 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
301 #ifndef VGA_NO_MODE_CHANGE
304 { M_VGA_M90x25, 0, 90, 25, 8, 16, 2, 1,
305 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
306 { M_VGA_C90x25, V_INFO_COLOR, 90, 25, 8, 16, 4, 1,
307 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
308 { M_VGA_M90x30, 0, 90, 30, 8, 16, 2, 1,
309 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
310 { M_VGA_C90x30, V_INFO_COLOR, 90, 30, 8, 16, 4, 1,
311 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
312 { M_VGA_M90x43, 0, 90, 43, 8, 8, 2, 1,
313 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
314 { M_VGA_C90x43, V_INFO_COLOR, 90, 43, 8, 8, 4, 1,
315 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
316 { M_VGA_M90x50, 0, 90, 50, 8, 8, 2, 1,
317 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
318 { M_VGA_C90x50, V_INFO_COLOR, 90, 50, 8, 8, 4, 1,
319 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
320 { M_VGA_M90x60, 0, 90, 60, 8, 8, 2, 1,
321 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
322 { M_VGA_C90x60, V_INFO_COLOR, 90, 60, 8, 8, 4, 1,
323 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
324 #endif /* VGA_WIDTH90 */
327 { M_BG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1,
328 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA },
329 { M_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1,
330 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA },
331 { M_BG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 1, 1,
332 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA },
334 { M_CG320_D, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 4, 4,
335 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0,
337 { M_CG640_E, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 4, 4,
338 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
340 { M_EGAMONOAPA, V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4,
341 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, 64*1024, 0, 0 ,
343 { M_ENHMONOAPA2,V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4,
344 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
346 { M_CG640x350, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 2, 2,
347 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
349 { M_ENH_CG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4,
350 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
353 { M_BG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4,
354 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
356 { M_CG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4,
357 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
359 { M_VGA_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 8, 1,
360 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0,
361 V_INFO_MM_PACKED, 1 },
362 { M_VGA_MODEX, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 240, 8, 8, 8, 4,
363 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0,
365 #endif /* VGA_NO_MODE_CHANGE */
370 static int vga_init_done = FALSE;
371 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
372 static u_char *video_mode_ptr = NULL;
374 static u_char *mode_map[V_MODE_MAP_SIZE];
375 static adp_state_t adpstate;
376 static adp_state_t adpstate2;
377 static int rows_offset = 1;
379 /* local macros and functions */
380 #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff))
382 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
383 static void map_mode_table(u_char **, u_char *, int);
385 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
386 static int map_mode_num(int);
388 static int map_bios_mode_num(int);
389 static u_char *get_mode_param(int);
390 static int verify_adapter(video_adapter_t *);
391 static void update_adapter_info(video_adapter_t *, video_info_t *);
392 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
393 #define COMP_IDENTICAL 0
394 #define COMP_SIMILAR 1
395 #define COMP_DIFFERENT 2
396 static int comp_adpregs(u_char *, u_char *);
398 static int probe_adapters(void);
399 static int set_line_length(video_adapter_t *, int);
400 static int set_display_start(video_adapter_t *, int, int);
402 #ifndef VGA_NO_MODE_CHANGE
404 static void set_width90(adp_state_t *);
406 #endif /* !VGA_NO_MODE_CHANGE */
408 #ifndef VGA_NO_FONT_LOADING
409 #define PARAM_BUFSIZE 6
410 static void set_font_mode(video_adapter_t *, u_char *);
411 static void set_normal_mode(video_adapter_t *, u_char *);
414 #ifndef VGA_NO_MODE_CHANGE
415 static void filll_io(int, vm_offset_t, size_t);
416 static void planar_fill(video_adapter_t *, int);
417 static void packed_fill(video_adapter_t *, int);
418 static void direct_fill(video_adapter_t *, int);
420 static void planar_fill_rect(video_adapter_t *, int, int, int, int, int);
421 static void packed_fill_rect(video_adapter_t *, int, int, int, int, int);
422 static void direct_fill_rect16(video_adapter_t *, int, int, int, int, int);
423 static void direct_fill_rect24(video_adapter_t *, int, int, int, int, int);
424 static void direct_fill_rect32(video_adapter_t *, int, int, int, int, int);
426 #endif /* !VGA_NO_MODE_CHANGE */
428 static void dump_buffer(u_char *, size_t);
430 #define ISMAPPED(pa, width) \
431 (((pa) <= (u_long)0x1000 - (width)) \
432 || ((pa) >= ISA_HOLE_START && (pa) <= 0x100000 - (width)))
434 #define prologue(adp, flag, err) \
435 if (!vga_init_done || !((adp)->va_flags & (flag))) \
438 /* a backdoor for the console driver */
440 vga_configure(int flags)
443 if (probe_done(&biosadapter)) {
444 biosadapter.va_flags |= V_ADP_INITIALIZED;
445 if (!config_done(&biosadapter) && !(vid_register(&biosadapter) < 0))
446 biosadapter.va_flags |= V_ADP_REGISTERED;
448 if (vga_sub_configure != NULL)
449 (*vga_sub_configure)(flags);
454 /* local subroutines */
456 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
457 /* construct the mode parameter map */
459 map_mode_table(u_char *map[], u_char *table, int max)
463 for(i = 0; i < max; ++i)
464 map[i] = table + i*V_MODE_PARAM_SIZE;
465 for(; i < V_MODE_MAP_SIZE; ++i)
468 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */
470 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
471 /* map the non-standard video mode to a known mode number */
473 map_mode_num(int mode)
479 { M_ENH_B80x43, M_ENH_B80x25 },
480 { M_ENH_C80x43, M_ENH_C80x25 },
481 { M_VGA_M80x30, M_VGA_M80x25 },
482 { M_VGA_C80x30, M_VGA_C80x25 },
483 { M_VGA_M80x50, M_VGA_M80x25 },
484 { M_VGA_C80x50, M_VGA_C80x25 },
485 { M_VGA_M80x60, M_VGA_M80x25 },
486 { M_VGA_C80x60, M_VGA_C80x25 },
488 { M_VGA_M90x25, M_VGA_M80x25 },
489 { M_VGA_C90x25, M_VGA_C80x25 },
490 { M_VGA_M90x30, M_VGA_M80x25 },
491 { M_VGA_C90x30, M_VGA_C80x25 },
492 { M_VGA_M90x43, M_ENH_B80x25 },
493 { M_VGA_C90x43, M_ENH_C80x25 },
494 { M_VGA_M90x50, M_VGA_M80x25 },
495 { M_VGA_C90x50, M_VGA_C80x25 },
496 { M_VGA_M90x60, M_VGA_M80x25 },
497 { M_VGA_C90x60, M_VGA_C80x25 },
499 { M_VGA_MODEX, M_VGA_CG320 },
503 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) {
504 if (mode_map[i].from == mode)
505 return mode_map[i].to;
509 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */
511 /* turn the BIOS video number into our video mode number */
513 map_bios_mode_num(int bios_mode)
515 static int vga_modes[20] = {
516 M_VGA_C40x25, M_VGA_C40x25, /* 0, 1 */
517 M_VGA_C80x25, M_VGA_C80x25, /* 2, 3 */
520 M_VGA_M80x25, /* 7 */
526 M_BG640x480, M_CG640x480,
530 if (bios_mode < sizeof(vga_modes)/sizeof(vga_modes[0]))
531 return vga_modes[bios_mode];
536 /* look up a parameter table entry */
538 get_mode_param(int mode)
540 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
541 if (mode >= V_MODE_MAP_SIZE)
542 mode = map_mode_num(mode);
544 if ((mode >= 0) && (mode < V_MODE_MAP_SIZE))
545 return mode_map[mode];
551 verify_adapter(video_adapter_t *adp)
555 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
559 buf = BIOS_PADDRTOVADDR(adp->va_window);
562 if (readw(buf) != 0xA55A)
570 adp->va_flags |= V_ADP_STATELOAD | V_ADP_STATESAVE | V_ADP_PALETTE |
573 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
574 /* get the BIOS video mode pointer */
575 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8);
576 p = BIOS_SADDRTOLADDR(p);
577 if (ISMAPPED(p, sizeof(u_int32_t))) {
578 p = *(u_int32_t *)BIOS_PADDRTOVADDR(p);
579 p = BIOS_SADDRTOLADDR(p);
580 if (ISMAPPED(p, V_MODE_PARAM_SIZE))
581 video_mode_ptr = (u_char *)BIOS_PADDRTOVADDR(p);
589 update_adapter_info(video_adapter_t *adp, video_info_t *info)
591 adp->va_flags |= V_ADP_COLOR;
592 adp->va_window = BIOS_PADDRTOVADDR(info->vi_window);
593 adp->va_window_size = info->vi_window_size;
594 adp->va_window_gran = info->vi_window_gran;
595 adp->va_window_orig = 0;
597 adp->va_buffer = info->vi_buffer;
598 adp->va_buffer_size = info->vi_buffer_size;
599 if (info->vi_mem_model == V_INFO_MM_VGAX) {
600 adp->va_line_width = info->vi_width/2;
601 } else if (info->vi_flags & V_INFO_GRAPHICS) {
602 switch (info->vi_depth/info->vi_planes) {
604 adp->va_line_width = info->vi_width/8;
607 adp->va_line_width = info->vi_width/4;
610 adp->va_line_width = info->vi_width/2;
613 default: /* shouldn't happen */
614 adp->va_line_width = info->vi_width;
618 adp->va_line_width = info->vi_width;
620 adp->va_disp_start.x = 0;
621 adp->va_disp_start.y = 0;
622 bcopy(info, &adp->va_info, sizeof(adp->va_info));
625 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
626 /* compare two parameter table entries */
628 comp_adpregs(u_char *buf1, u_char *buf2)
632 } params[V_MODE_PARAM_SIZE] = {
633 {0xff}, {0x00}, {0xff}, /* COLS}, ROWS}, POINTS */
634 {0x00}, {0x00}, /* page length */
635 {0xfe}, {0xff}, {0xff}, {0xff}, /* sequencer registers */
636 {0xf3}, /* misc register */
637 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, /* CRTC */
638 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff},
639 {0x00}, {0x00}, {0x00}, {0x00}, {0x00},
640 {0x00}, {0xff}, {0x7f}, {0xff}, {0xff},
641 {0x7f}, {0xff}, {0xff}, {0xef}, {0xff},
642 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* attribute controller regs */
643 {0xff}, {0xff}, {0xff}, {0xff}, {0xff},
644 {0xff}, {0xff}, {0xff}, {0xff}, {0xff},
645 {0xff}, {0xff}, {0xff}, {0xff}, {0xf0},
646 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* GDC register */
647 {0xff}, {0xff}, {0xff}, {0xff},
649 int identical = TRUE;
652 if ((buf1 == NULL) || (buf2 == NULL))
653 return COMP_DIFFERENT;
655 for (i = 0; i < sizeof(params)/sizeof(params[0]); ++i) {
656 if (params[i].mask == 0) /* don't care */
658 if ((buf1[i] & params[i].mask) != (buf2[i] & params[i].mask))
659 return COMP_DIFFERENT;
660 if (buf1[i] != buf2[i])
663 return (identical) ? COMP_IDENTICAL : COMP_SIMILAR;
665 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */
667 /* probe video adapters and return the number of detected adapters */
671 video_adapter_t *adp;
673 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
678 /* do this test only once */
681 vga_init_done = TRUE;
684 * Check BIOS data area.
685 * The VGA BIOS has more sophisticated mechanism and has this
686 * information in BIOSDATA_DCCINDEX (40:8a), but it also maintains
687 * compatibility with the EGA BIOS by updating BIOSDATA_VIDEOSWITCH.
691 * XXX: we don't use BIOSDATA_EQUIPMENT, since it is not a dead
692 * copy of RTC_EQUIPMENT. Bits 4 and 5 of ETC_EQUIPMENT are
693 * zeros for VGA. However, VGA BIOS sets these bits in
694 * BIOSDATA_EQUIPMENT according to the monitor type detected.
697 if ((readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f) != 0x09)
699 #endif /* VGA_NO_BIOS */
701 if (verify_adapter(&biosadapter) != 0)
704 biosadapter.va_flags |= V_ADP_PROBED;
706 biosadapter.va_initial_bios_mode = readb(BIOS_PADDRTOVADDR(0x449));
707 biosadapter.va_mode = biosadapter.va_initial_mode =
708 map_bios_mode_num(biosadapter.va_initial_bios_mode);
712 * Ensure a zero start address. This is mainly to recover after
713 * switching from pcvt using userconfig(). The registers are w/o
714 * for old hardware so it's too hard to relocate the active screen
716 * This must be done before vga_save_state() for VGA.
723 /* the video mode parameter table in VGA BIOS */
724 /* NOTE: there can be only one VGA recognized by the video BIOS.
727 bzero(mode_map, sizeof(mode_map));
728 vga_save_state(adp, &adpstate, sizeof(adpstate));
729 for(i = 0; i < 16; i++)
730 adp->va_palette_regs[i] = adpstate.regs[35 + i];
731 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE)
732 mode_map[adp->va_initial_mode] = adpstate.regs;
734 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */
735 if (video_mode_ptr == NULL) {
736 mode_map[adp->va_initial_mode] = adpstate.regs;
739 /* discard the table if we are not familiar with it... */
740 map_mode_table(mode_map, video_mode_ptr, M_VGA_CG320 + 1);
741 mp = get_mode_param(adp->va_initial_mode);
743 bcopy(mp, adpstate2.regs, sizeof(adpstate2.regs));
744 switch (comp_adpregs(adpstate.regs, mp)) {
747 * OK, this parameter table looks reasonably familiar
751 * This is a kludge for Toshiba DynaBook SS433
752 * whose BIOS video mode table entry has the actual #
753 * of rows at the offset 1; BIOSes from other
754 * manufacturers store the # of rows - 1 there. XXX
756 rows_offset = adpstate.regs[1] + 1 - mp[1];
761 * Not exactly the same, but similar enough to be
762 * trusted. However, use the saved register values
763 * for the initial mode and other modes which are
764 * based on the initial mode.
766 mode_map[adp->va_initial_mode] = adpstate.regs;
767 rows_offset = adpstate.regs[1] + 1 - mp[1];
768 adpstate.regs[1] -= rows_offset - 1;
774 * Don't use the paramter table in BIOS. It doesn't
775 * look familiar to us. Video mode switching is allowed
776 * only if the new mode is the same as or based on
779 video_mode_ptr = NULL;
780 bzero(mode_map, sizeof(mode_map));
781 mode_map[adp->va_initial_mode] = adpstate.regs;
786 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */
788 #ifndef VGA_NO_MODE_CHANGE
789 adp->va_flags |= V_ADP_MODECHANGE;
791 #ifndef VGA_NO_FONT_LOADING
792 adp->va_flags |= V_ADP_FONT;
795 /* XXX remove conflicting modes */
796 for (i = 0; i < M_VGA_CG320; i++) {
797 if (vga_get_info(&biosadapter, i, &info))
799 if ((info.vi_flags & V_INFO_COLOR) != V_ADP_COLOR)
804 vga_get_info(&biosadapter, biosadapter.va_initial_mode, &info);
805 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */
806 update_adapter_info(&biosadapter, &info);
809 * XXX: we should verify the following values for the primary adapter...
810 * crtc I/O port address: *(u_int16_t *)BIOS_PADDRTOVADDR(0x463);
811 * color/mono display: (*(u_int8_t *)BIOS_PADDRTOVADDR(0x487) & 0x02)
813 * columns: *(u_int8_t *)BIOS_PADDRTOVADDR(0x44a);
814 * rows: *(u_int8_t *)BIOS_PADDRTOVADDR(0x484);
815 * font size: *(u_int8_t *)BIOS_PADDRTOVADDR(0x485);
816 * buffer size: *(u_int16_t *)BIOS_PADDRTOVADDR(0x44c);
822 /* set the scan line length in pixel */
824 set_line_length(video_adapter_t *adp, int pixel)
827 int ppw; /* pixels per word */
828 int bpl; /* bytes per line */
831 mp = get_mode_param(adp->va_mode);
835 switch (adp->va_info.vi_mem_model) {
836 case V_INFO_MM_PLANAR:
837 ppw = 16/(adp->va_info.vi_depth/adp->va_info.vi_planes);
838 count = (pixel + ppw - 1)/ppw/2;
839 bpl = ((pixel + ppw - 1)/ppw/2)*4;
841 case V_INFO_MM_PACKED:
842 count = (pixel + 7)/8;
843 bpl = ((pixel + 7)/8)*8;
846 count = (pixel + 7)/8; /* columns */
847 bpl = (pixel + 7)/8; /* columns */
853 if (mp[10 + 0x17] & 0x40) /* CRTC mode control reg */
854 count *= 2; /* byte mode */
857 adp->va_line_width = bpl;
863 set_display_start(video_adapter_t *adp, int x, int y)
865 int off; /* byte offset (graphics mode)/word offset (text mode) */
866 int poff; /* pixel offset */
867 int roff; /* row offset */
868 int ppb; /* pixels per byte */
870 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) {
871 ppb = 8/(adp->va_info.vi_depth/adp->va_info.vi_planes);
872 off = y*adp->va_line_width + x/ppb;
881 off = y/adp->va_info.vi_cheight*adp->va_line_width + x/ppb;
882 roff = y%adp->va_info.vi_cheight;
883 /* FIXME: is this correct? XXX */
891 outb(CRTC, 0xc); /* high */
892 outb(CRTC + 1, off >> 8);
893 outb(CRTC, 0xd); /* low */
894 outb(CRTC + 1, off & 0xff);
896 /* horizontal pel pan */
898 outb(ATC, 0x13 | 0x20);
903 /* preset raw scan */
905 outb(CRTC + 1, roff);
907 adp->va_disp_start.x = x;
908 adp->va_disp_start.y = y;
912 #ifndef VGA_NO_MODE_CHANGE
913 #if defined(__i386__) || defined(__x86_64__) /* XXX */
915 fill(int val, void *d, size_t size)
922 #endif /* __i386__ || __x86_64__ */
925 filll_io(int val, vm_offset_t d, size_t size)
929 d += sizeof(u_int32_t);
932 #endif /* !VGA_NO_MODE_CHANGE */
951 vga_probe(int unit, video_adapter_t **adpp, void *arg, int flags)
957 *adpp = &biosadapter;
963 vga_init(int unit, video_adapter_t *adp, int flags)
965 if ((unit != 0) || (adp == NULL) || !probe_done(adp))
968 if (!init_done(adp)) {
969 /* nothing to do really... */
970 adp->va_flags |= V_ADP_INITIALIZED;
973 if (!config_done(adp)) {
974 if (vid_register(adp) < 0)
976 adp->va_flags |= V_ADP_REGISTERED;
978 if (vga_sub_configure != NULL)
979 (*vga_sub_configure)(0);
986 * Return the video_info structure of the requested video mode.
989 vga_get_info(video_adapter_t *adp, int mode, video_info_t *info)
996 #ifndef VGA_NO_MODE_CHANGE
997 if (adp->va_flags & V_ADP_MODECHANGE) {
999 * If the parameter table entry for this mode is not found,
1000 * the mode is not supported...
1002 if (get_mode_param(mode) == NULL)
1005 #endif /* VGA_NO_MODE_CHANGE */
1008 * Even if we don't support video mode switching on this adapter,
1009 * the information on the initial (thus current) video mode
1010 * should be made available.
1012 if (mode != adp->va_initial_mode)
1016 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) {
1017 if (bios_vmode[i].vi_mode == NA)
1019 if (mode == bios_vmode[i].vi_mode) {
1020 *info = bios_vmode[i];
1022 info->vi_buffer_size = info->vi_window_size*info->vi_planes;
1031 * Find a video mode matching the requested parameters.
1032 * Fields filled with 0 are considered "don't care" fields and
1036 vga_query_mode(video_adapter_t *adp, video_info_t *info)
1043 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) {
1044 if (bios_vmode[i].vi_mode == NA)
1047 if ((info->vi_width != 0)
1048 && (info->vi_width != bios_vmode[i].vi_width))
1050 if ((info->vi_height != 0)
1051 && (info->vi_height != bios_vmode[i].vi_height))
1053 if ((info->vi_cwidth != 0)
1054 && (info->vi_cwidth != bios_vmode[i].vi_cwidth))
1056 if ((info->vi_cheight != 0)
1057 && (info->vi_cheight != bios_vmode[i].vi_cheight))
1059 if ((info->vi_depth != 0)
1060 && (info->vi_depth != bios_vmode[i].vi_depth))
1062 if ((info->vi_planes != 0)
1063 && (info->vi_planes != bios_vmode[i].vi_planes))
1065 /* XXX: should check pixel format, memory model */
1066 if ((info->vi_flags != 0)
1067 && (info->vi_flags != bios_vmode[i].vi_flags))
1070 /* verify if this mode is supported on this adapter */
1071 if (vga_get_info(adp, bios_vmode[i].vi_mode, info))
1080 * Change the video mode.
1083 #ifndef VGA_NO_MODE_CHANGE
1086 set_width90(adp_state_t *params)
1089 * Based on code submitted by Kelly Yancey (kbyanc@freedomnet.com)
1090 * and alexv@sui.gda.itesm.mx.
1092 params->regs[5] |= 1; /* toggle 8 pixel wide fonts */
1093 params->regs[10+0x0] = 0x6b;
1094 params->regs[10+0x1] = 0x59;
1095 params->regs[10+0x2] = 0x5a;
1096 params->regs[10+0x3] = 0x8e;
1097 params->regs[10+0x4] = 0x5e;
1098 params->regs[10+0x5] = 0x8a;
1099 params->regs[10+0x13] = 45;
1100 params->regs[35+0x13] = 0;
1102 #endif /* VGA_WIDTH90 */
1103 #endif /* !VGA_NO_MODE_CHANGE */
1106 vga_set_mode(video_adapter_t *adp, int mode)
1108 #ifndef VGA_NO_MODE_CHANGE
1112 prologue(adp, V_ADP_MODECHANGE, ENODEV);
1114 if (vga_get_info(adp, mode, &info))
1118 kprintf("vga_set_mode(): setting mode %d\n", mode);
1121 params.sig = V_STATE_SIG;
1122 bcopy(get_mode_param(mode), params.regs, sizeof(params.regs));
1126 case M_VGA_C90x60: case M_VGA_M90x60:
1127 set_width90(¶ms);
1130 case M_VGA_C80x60: case M_VGA_M80x60:
1131 params.regs[2] = 0x08;
1132 params.regs[19] = 0x47;
1136 case M_VGA_C90x30: case M_VGA_M90x30:
1137 set_width90(¶ms);
1140 case M_VGA_C80x30: case M_VGA_M80x30:
1141 params.regs[19] = 0x4f;
1143 params.regs[9] |= 0xc0;
1144 params.regs[16] = 0x08;
1145 params.regs[17] = 0x3e;
1146 params.regs[26] = 0xea;
1147 params.regs[28] = 0xdf;
1148 params.regs[31] = 0xe7;
1149 params.regs[32] = 0x04;
1153 case M_VGA_C90x43: case M_VGA_M90x43:
1154 set_width90(¶ms);
1157 case M_ENH_C80x43: case M_ENH_B80x43:
1158 params.regs[28] = 87;
1162 case M_VGA_C90x50: case M_VGA_M90x50:
1163 set_width90(¶ms);
1166 case M_VGA_C80x50: case M_VGA_M80x50:
1169 params.regs[19] = 7;
1173 case M_VGA_C90x25: case M_VGA_M90x25:
1174 set_width90(¶ms);
1177 case M_VGA_C40x25: case M_VGA_C80x25:
1179 case M_B40x25: case M_C40x25:
1180 case M_B80x25: case M_C80x25:
1181 case M_ENH_B40x25: case M_ENH_C40x25:
1182 case M_ENH_B80x25: case M_ENH_C80x25:
1183 case M_EGAMONO80x25:
1186 vga_load_state(adp, ¶ms);
1190 /* "unchain" the VGA mode */
1191 params.regs[5-1+0x04] &= 0xf7;
1192 params.regs[5-1+0x04] |= 0x04;
1193 /* turn off doubleword mode */
1194 params.regs[10+0x14] &= 0xbf;
1195 /* turn off word addressing */
1196 params.regs[10+0x17] |= 0x40;
1197 /* set logical screen width */
1198 params.regs[10+0x13] = 80;
1200 params.regs[10+0x11] = 0x2c;
1201 params.regs[10+0x06] = 0x0d;
1202 params.regs[10+0x07] = 0x3e;
1203 params.regs[10+0x10] = 0xea;
1204 params.regs[10+0x11] = 0xac;
1205 params.regs[10+0x12] = 0xdf;
1206 params.regs[10+0x15] = 0xe7;
1207 params.regs[10+0x16] = 0x06;
1208 /* set vertical sync polarity to reflect aspect ratio */
1209 params.regs[9] = 0xe3;
1212 case M_BG320: case M_CG320: case M_BG640:
1213 case M_CG320_D: case M_CG640_E:
1214 case M_CG640x350: case M_ENH_CG640:
1215 case M_BG640x480: case M_CG640x480: case M_VGA_CG320:
1218 vga_load_state(adp, ¶ms);
1225 adp->va_mode = mode;
1226 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */
1227 update_adapter_info(adp, &info);
1229 /* move hardware cursor out of the way */
1230 (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1);
1233 #else /* VGA_NO_MODE_CHANGE */
1235 #endif /* VGA_NO_MODE_CHANGE */
1238 #ifndef VGA_NO_FONT_LOADING
1241 set_font_mode(video_adapter_t *adp, u_char *buf)
1245 /* save register values */
1246 outb(TSIDX, 0x02); buf[0] = inb(TSREG);
1247 outb(TSIDX, 0x04); buf[1] = inb(TSREG);
1248 outb(GDCIDX, 0x04); buf[2] = inb(GDCREG);
1249 outb(GDCIDX, 0x05); buf[3] = inb(GDCREG);
1250 outb(GDCIDX, 0x06); buf[4] = inb(GDCREG);
1252 outb(ATC, 0x10); buf[5] = inb(ATC + 1);
1254 /* setup vga for loading fonts */
1255 inb(CRTC + 6); /* reset flip-flop */
1256 outb(ATC, 0x10); outb(ATC, buf[5] & ~0x01);
1257 inb(CRTC + 6); /* reset flip-flop */
1258 outb(ATC, 0x20); /* enable palette */
1260 #if VGA_SLOW_IOACCESS
1261 #ifdef VGA_ALT_SEQACCESS
1262 outb(TSIDX, 0x00); outb(TSREG, 0x01);
1264 outb(TSIDX, 0x02); outb(TSREG, 0x04);
1265 outb(TSIDX, 0x04); outb(TSREG, 0x07);
1266 #ifdef VGA_ALT_SEQACCESS
1267 outb(TSIDX, 0x00); outb(TSREG, 0x03);
1269 outb(GDCIDX, 0x04); outb(GDCREG, 0x02);
1270 outb(GDCIDX, 0x05); outb(GDCREG, 0x00);
1271 outb(GDCIDX, 0x06); outb(GDCREG, 0x04);
1272 #else /* VGA_SLOW_IOACCESS */
1273 #ifdef VGA_ALT_SEQACCESS
1274 outw(TSIDX, 0x0100);
1276 outw(TSIDX, 0x0402);
1277 outw(TSIDX, 0x0704);
1278 #ifdef VGA_ALT_SEQACCESS
1279 outw(TSIDX, 0x0300);
1281 outw(GDCIDX, 0x0204);
1282 outw(GDCIDX, 0x0005);
1283 outw(GDCIDX, 0x0406); /* addr = a0000, 64kb */
1284 #endif /* VGA_SLOW_IOACCESS */
1290 set_normal_mode(video_adapter_t *adp, u_char *buf)
1294 /* setup vga for normal operation mode again */
1295 inb(CRTC + 6); /* reset flip-flop */
1296 outb(ATC, 0x10); outb(ATC, buf[5]);
1297 inb(CRTC + 6); /* reset flip-flop */
1298 outb(ATC, 0x20); /* enable palette */
1300 #if VGA_SLOW_IOACCESS
1301 #ifdef VGA_ALT_SEQACCESS
1302 outb(TSIDX, 0x00); outb(TSREG, 0x01);
1304 outb(TSIDX, 0x02); outb(TSREG, buf[0]);
1305 outb(TSIDX, 0x04); outb(TSREG, buf[1]);
1306 #ifdef VGA_ALT_SEQACCESS
1307 outb(TSIDX, 0x00); outb(TSREG, 0x03);
1309 outb(GDCIDX, 0x04); outb(GDCREG, buf[2]);
1310 outb(GDCIDX, 0x05); outb(GDCREG, buf[3]);
1311 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x0c);
1312 #else /* VGA_SLOW_IOACCESS */
1313 #ifdef VGA_ALT_SEQACCESS
1314 outw(TSIDX, 0x0100);
1316 outw(TSIDX, 0x0002 | (buf[0] << 8));
1317 outw(TSIDX, 0x0004 | (buf[1] << 8));
1318 #ifdef VGA_ALT_SEQACCESS
1319 outw(TSIDX, 0x0300);
1321 outw(GDCIDX, 0x0004 | (buf[2] << 8));
1322 outw(GDCIDX, 0x0005 | (buf[3] << 8));
1323 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x0c)<<8));
1324 #endif /* VGA_SLOW_IOACCESS */
1329 #endif /* VGA_NO_FONT_LOADING */
1333 * Read the font data in the requested font page from the video adapter.
1336 vga_save_font(video_adapter_t *adp, int page, int fontsize, u_char *data,
1339 #ifndef VGA_NO_FONT_LOADING
1340 u_char buf[PARAM_BUFSIZE];
1341 vm_offset_t segment;
1343 #ifdef VGA_ALT_SEQACCESS
1347 prologue(adp, V_ADP_FONT, ENODEV);
1349 if (fontsize < 14) {
1352 } else if (fontsize >= 32) {
1354 } else if (fontsize >= 16) {
1362 if (page < 0 || page >= 8)
1364 segment = FONT_BUF + 0x4000*page;
1368 #ifdef VGA_ALT_SEQACCESS
1370 outb(TSIDX, 0x00); outb(TSREG, 0x01);
1371 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */
1372 outb(TSIDX, 0x01); outb(TSREG, val | 0x20);
1373 outb(TSIDX, 0x00); outb(TSREG, 0x03);
1377 set_font_mode(adp, buf);
1378 if (fontsize == 32) {
1379 bcopy_fromio((uintptr_t)segment + ch*32, data, fontsize*count);
1381 for (c = ch; count > 0; ++c, --count) {
1382 bcopy_fromio((uintptr_t)segment + c*32, data, fontsize);
1386 set_normal_mode(adp, buf);
1388 #ifdef VGA_ALT_SEQACCESS
1390 outb(TSIDX, 0x00); outb(TSREG, 0x01);
1391 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */
1392 outb(TSIDX, 0x00); outb(TSREG, 0x03);
1397 #else /* VGA_NO_FONT_LOADING */
1399 #endif /* VGA_NO_FONT_LOADING */
1404 * Set the font data in the requested font page.
1405 * NOTE: it appears that some recent video adapters do not support
1406 * the font page other than 0... XXX
1409 vga_load_font(video_adapter_t *adp, int page, int fontsize, u_char *data,
1412 #ifndef VGA_NO_FONT_LOADING
1413 u_char buf[PARAM_BUFSIZE];
1414 vm_offset_t segment;
1416 #ifdef VGA_ALT_SEQACCESS
1420 prologue(adp, V_ADP_FONT, ENODEV);
1422 if (fontsize < 14) {
1425 } else if (fontsize >= 32) {
1427 } else if (fontsize >= 16) {
1435 if (page < 0 || page >= 8)
1437 segment = FONT_BUF + 0x4000*page;
1441 #ifdef VGA_ALT_SEQACCESS
1443 outb(TSIDX, 0x00); outb(TSREG, 0x01);
1444 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */
1445 outb(TSIDX, 0x01); outb(TSREG, val | 0x20);
1446 outb(TSIDX, 0x00); outb(TSREG, 0x03);
1450 set_font_mode(adp, buf);
1451 if (fontsize == 32) {
1452 bcopy_toio(data, (uintptr_t)segment + ch*32, fontsize*count);
1454 for (c = ch; count > 0; ++c, --count) {
1455 bcopy_toio(data, (uintptr_t)segment + c*32, fontsize);
1459 set_normal_mode(adp, buf);
1461 #ifdef VGA_ALT_SEQACCESS
1463 outb(TSIDX, 0x00); outb(TSREG, 0x01);
1464 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */
1465 outb(TSIDX, 0x00); outb(TSREG, 0x03);
1470 #else /* VGA_NO_FONT_LOADING */
1472 #endif /* VGA_NO_FONT_LOADING */
1477 * Activate the requested font page.
1478 * NOTE: it appears that some recent video adapters do not support
1479 * the font page other than 0... XXX
1482 vga_show_font(video_adapter_t *adp, int page)
1484 #ifndef VGA_NO_FONT_LOADING
1485 static u_char cg[] = { 0x00, 0x05, 0x0a, 0x0f, 0x30, 0x35, 0x3a, 0x3f };
1487 prologue(adp, V_ADP_FONT, ENODEV);
1488 if (page < 0 || page >= 8)
1492 outb(TSIDX, 0x03); outb(TSREG, cg[page]);
1496 #else /* VGA_NO_FONT_LOADING */
1498 #endif /* VGA_NO_FONT_LOADING */
1503 * Read DAC values. The values have expressed in 8 bits.
1508 vga_save_palette(video_adapter_t *adp, u_char *palette)
1512 prologue(adp, V_ADP_PALETTE, ENODEV);
1515 * We store 8 bit values in the palette buffer, while the standard
1516 * VGA has 6 bit DAC .
1518 outb(PALRADR, 0x00);
1519 for (i = 0; i < 256*3; ++i)
1520 palette[i] = inb(PALDATA) << 2;
1521 inb(CRTC + 6); /* reset flip/flop */
1526 vga_save_palette2(video_adapter_t *adp, int base, int count,
1527 u_char *r, u_char *g, u_char *b)
1531 prologue(adp, V_ADP_PALETTE, ENODEV);
1533 outb(PALRADR, base);
1534 for (i = 0; i < count; ++i) {
1535 r[i] = inb(PALDATA) << 2;
1536 g[i] = inb(PALDATA) << 2;
1537 b[i] = inb(PALDATA) << 2;
1539 inb(CRTC + 6); /* reset flip/flop */
1550 vga_load_palette(video_adapter_t *adp, const u_char *palette)
1554 prologue(adp, V_ADP_PALETTE, ENODEV);
1556 outb(PIXMASK, 0xff); /* no pixelmask */
1557 outb(PALWADR, 0x00);
1558 for (i = 0; i < 256*3; ++i)
1559 outb(PALDATA, palette[i] >> 2);
1560 inb(CRTC + 6); /* reset flip/flop */
1561 outb(ATC, 0x20); /* enable palette */
1566 vga_load_palette2(video_adapter_t *adp, int base, int count,
1567 u_char *r, u_char *g, u_char *b)
1571 prologue(adp, V_ADP_PALETTE, ENODEV);
1573 outb(PIXMASK, 0xff); /* no pixelmask */
1574 outb(PALWADR, base);
1575 for (i = 0; i < count; ++i) {
1576 outb(PALDATA, r[i] >> 2);
1577 outb(PALDATA, g[i] >> 2);
1578 outb(PALDATA, b[i] >> 2);
1580 inb(CRTC + 6); /* reset flip/flop */
1581 outb(ATC, 0x20); /* enable palette */
1587 * Change the border color.
1590 vga_set_border(video_adapter_t *adp, int color)
1592 prologue(adp, V_ADP_BORDER, ENODEV);
1594 inb(CRTC + 6); /* reset flip-flop */
1595 outb(ATC, 0x31); outb(ATC, color & 0xff);
1602 * Read video register values.
1603 * NOTE: this function only reads the standard VGA registers.
1604 * any extra/extended registers of SVGA adapters are not saved.
1607 vga_save_state(video_adapter_t *adp, void *p, size_t size)
1615 /* return the required buffer size */
1616 prologue(adp, V_ADP_STATESAVE, 0);
1617 return sizeof(adp_state_t);
1619 prologue(adp, V_ADP_STATESAVE, ENODEV);
1620 if (size < sizeof(adp_state_t))
1623 ((adp_state_t *)p)->sig = V_STATE_SIG;
1624 buf = ((adp_state_t *)p)->regs;
1625 bzero(buf, V_MODE_PARAM_SIZE);
1630 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */
1631 for (i = 0, j = 5; i < 4; i++) {
1633 buf[j++] = inb(TSREG);
1635 buf[9] = inb(MISC + 10); /* dot-clock */
1636 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */
1638 for (i = 0, j = 10; i < 25; i++) { /* crtc */
1640 buf[j++] = inb(crtc_addr + 1);
1642 for (i = 0, j = 35; i < 20; i++) { /* attribute ctrl */
1643 inb(crtc_addr + 6); /* reset flip-flop */
1645 buf[j++] = inb(ATC + 1);
1647 for (i = 0, j = 55; i < 9; i++) { /* graph data ctrl */
1649 buf[j++] = inb(GDCREG);
1651 inb(crtc_addr + 6); /* reset flip-flop */
1652 outb(ATC, 0x20); /* enable palette */
1657 if (vga_get_info(adp, adp->va_mode, &info) == 0) {
1658 if (info.vi_flags & V_INFO_GRAPHICS) {
1659 buf[0] = info.vi_width/info.vi_cwidth; /* COLS */
1660 buf[1] = info.vi_height/info.vi_cheight - 1; /* ROWS */
1662 buf[0] = info.vi_width; /* COLS */
1663 buf[1] = info.vi_height - 1; /* ROWS */
1665 buf[2] = info.vi_cheight; /* POINTS */
1667 /* XXX: shouldn't be happening... */
1668 kprintf("vga%d: %s: failed to obtain mode info. (vga_save_state())\n",
1669 adp->va_unit, adp->va_name);
1672 buf[0] = readb(BIOS_PADDRTOVADDR(0x44a)); /* COLS */
1673 buf[1] = readb(BIOS_PADDRTOVADDR(0x484)); /* ROWS */
1674 buf[2] = readb(BIOS_PADDRTOVADDR(0x485)); /* POINTS */
1675 buf[3] = readb(BIOS_PADDRTOVADDR(0x44c));
1676 buf[4] = readb(BIOS_PADDRTOVADDR(0x44d));
1684 * Set video registers at once.
1685 * NOTE: this function only updates the standard VGA registers.
1686 * any extra/extended registers of SVGA adapters are not changed.
1689 vga_load_state(video_adapter_t *adp, void *p)
1695 prologue(adp, V_ADP_STATELOAD, ENODEV);
1696 if (((adp_state_t *)p)->sig != V_STATE_SIG)
1699 buf = ((adp_state_t *)p)->regs;
1703 dump_buffer(buf, V_MODE_PARAM_SIZE);
1708 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */
1709 for (i = 0; i < 4; ++i) { /* program sequencer */
1711 outb(TSREG, buf[i + 5]);
1713 outb(MISC, buf[9]); /* set dot-clock */
1714 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */
1715 outb(crtc_addr, 0x11);
1716 outb(crtc_addr + 1, inb(crtc_addr + 1) & 0x7F);
1717 for (i = 0; i < 25; ++i) { /* program crtc */
1719 outb(crtc_addr + 1, buf[i + 10]);
1721 inb(crtc_addr+6); /* reset flip-flop */
1722 for (i = 0; i < 20; ++i) { /* program attribute ctrl */
1724 outb(ATC, buf[i + 35]);
1726 for (i = 0; i < 9; ++i) { /* program graph data ctrl */
1728 outb(GDCREG, buf[i + 55]);
1730 inb(crtc_addr + 6); /* reset flip-flop */
1731 outb(ATC, 0x20); /* enable palette */
1733 #if notyet /* a temporary workaround for kernel panic, XXX */
1735 if (adp->va_unit == V_ADP_PRIMARY) {
1736 writeb(BIOS_PADDRTOVADDR(0x44a), buf[0]); /* COLS */
1737 writeb(BIOS_PADDRTOVADDR(0x484), buf[1] + rows_offset - 1); /* ROWS */
1738 writeb(BIOS_PADDRTOVADDR(0x485), buf[2]); /* POINTS */
1740 writeb(BIOS_PADDRTOVADDR(0x44c), buf[3]);
1741 writeb(BIOS_PADDRTOVADDR(0x44d), buf[4]);
1744 #endif /* VGA_NO_BIOS */
1753 * Change the origin (window mapping) of the banked frame buffer.
1756 vga_set_origin(video_adapter_t *adp, off_t offset)
1759 * The standard video modes do not require window mapping;
1760 * always return error.
1767 * Read the position of the hardware text cursor.
1770 vga_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
1777 if (adp->va_info.vi_flags & V_INFO_GRAPHICS)
1782 off = inb(CRTC + 1);
1784 off = (off << 8) | inb(CRTC + 1);
1787 *row = off / adp->va_info.vi_width;
1788 *col = off % adp->va_info.vi_width;
1795 * Move the hardware text cursor. If col and row are both -1,
1796 * the cursor won't be shown.
1799 vga_set_hw_cursor(video_adapter_t *adp, int col, int row)
1806 if ((col == -1) && (row == -1)) {
1809 if (adp->va_info.vi_flags & V_INFO_GRAPHICS)
1811 off = row*adp->va_info.vi_width + col;
1816 outb(CRTC + 1, off >> 8);
1818 outb(CRTC + 1, off & 0x00ff);
1825 * set_hw_cursor_shape():
1826 * Change the shape of the hardware text cursor. If the height is
1827 * zero or negative, the cursor won't be shown.
1830 vga_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
1831 int celsize, int blink)
1838 /* make the cursor invisible */
1845 outb(CRTC + 1, celsize - base - height);
1847 outb(CRTC + 1, celsize - base - 1);
1856 * Put the display in power save/power off mode.
1859 vga_blank_display(video_adapter_t *adp, int mode)
1865 case V_DISPLAY_SUSPEND:
1866 case V_DISPLAY_STAND_BY:
1870 outb(TSREG, val | 0x20);
1872 val = inb(CRTC + 1);
1873 outb(CRTC + 1, val & ~0x80);
1879 outb(TSREG, val | 0x20);
1885 outb(TSREG, val & 0xDF);
1887 val = inb(CRTC + 1);
1888 outb(CRTC + 1, val | 0x80);
1898 * Mmap frame buffer.
1901 vga_mmap_buf(video_adapter_t *adp, vm_offset_t offset, int prot)
1903 if (adp->va_info.vi_flags & V_INFO_LINEAR)
1907 kprintf("vga_mmap_buf(): window:0x%x, offset:%p\n",
1908 adp->va_info.vi_window, (void *)offset);
1911 /* XXX: is this correct? */
1912 if (offset > adp->va_window_size - PAGE_SIZE)
1915 #if defined(__i386__)
1916 return i386_btop(adp->va_info.vi_window + offset);
1917 #elif defined(__x86_64__)
1918 return x86_64_btop(adp->va_info.vi_window + offset);
1920 #error "vga_mmap_buf needs to return something"
1924 #ifndef VGA_NO_MODE_CHANGE
1927 planar_fill(video_adapter_t *adp, int val)
1930 int at; /* position in the frame buffer */
1933 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */
1934 outw(GDCIDX, 0x0003); /* data rotate/function select */
1935 outw(GDCIDX, 0x0f01); /* set/reset enable */
1936 outw(GDCIDX, 0xff08); /* bit mask */
1937 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */
1939 length = adp->va_line_width*adp->va_info.vi_height;
1940 while (length > 0) {
1941 l = imin(length, adp->va_window_size);
1942 (*vidsw[adp->va_index]->set_win_org)(adp, at);
1943 bzero_io(adp->va_window, l);
1947 outw(GDCIDX, 0x0000); /* set/reset */
1948 outw(GDCIDX, 0x0001); /* set/reset enable */
1952 packed_fill(video_adapter_t *adp, int val)
1955 int at; /* position in the frame buffer */
1959 length = adp->va_line_width*adp->va_info.vi_height;
1960 while (length > 0) {
1961 l = imin(length, adp->va_window_size);
1962 (*vidsw[adp->va_index]->set_win_org)(adp, at);
1963 fill_io(val, adp->va_window, l);
1970 direct_fill(video_adapter_t *adp, int val)
1973 int at; /* position in the frame buffer */
1977 length = adp->va_line_width*adp->va_info.vi_height;
1978 while (length > 0) {
1979 l = imin(length, adp->va_window_size);
1980 (*vidsw[adp->va_index]->set_win_org)(adp, at);
1981 switch (adp->va_info.vi_pixel_size) {
1982 case sizeof(u_int16_t):
1983 fillw_io(val, adp->va_window, l/sizeof(u_int16_t));
1988 case sizeof(u_int32_t):
1989 filll_io(val, adp->va_window, l/sizeof(u_int32_t));
1998 vga_clear(video_adapter_t *adp)
2000 switch (adp->va_info.vi_mem_model) {
2001 case V_INFO_MM_TEXT:
2002 /* do nothing? XXX */
2004 case V_INFO_MM_PLANAR:
2005 planar_fill(adp, 0);
2007 case V_INFO_MM_PACKED:
2008 packed_fill(adp, 0);
2010 case V_INFO_MM_DIRECT:
2011 direct_fill(adp, 0);
2019 planar_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2024 int offset; /* offset within window */
2028 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */
2029 outw(GDCIDX, 0x0003); /* data rotate/function select */
2030 outw(GDCIDX, 0x0f01); /* set/reset enable */
2031 outw(GDCIDX, 0xff08); /* bit mask */
2032 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */
2034 banksize = adp->va_window_size;
2037 pos = adp->va_line_width*y + x/8;
2038 if (bank != pos/banksize) {
2039 (*vidsw[adp->va_index]->set_win_org)(adp, pos);
2040 bank = pos/banksize;
2042 offset = pos%banksize;
2043 bx = (x + cx)/8 - x/8;
2045 outw(GDCIDX, ((0xff00 >> (x % 8)) & 0xff00) | 0x08);
2046 writeb(adp->va_window + offset, 0);
2049 if (offset >= banksize) {
2051 ++bank; /* next bank */
2052 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize);
2054 outw(GDCIDX, 0xff08); /* bit mask */
2057 l = imin(bx, banksize);
2058 bzero_io(adp->va_window + offset, l);
2061 if (offset >= banksize) {
2063 ++bank; /* next bank */
2064 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize);
2068 outw(GDCIDX, (~(0xff00 >> ((x + cx) % 8)) & 0xff00) | 0x08);
2069 writeb(adp->va_window + offset, 0);
2071 if (offset >= banksize) {
2073 ++bank; /* next bank */
2074 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize);
2076 outw(GDCIDX, 0xff08); /* bit mask */
2082 outw(GDCIDX, 0xff08); /* bit mask */
2083 outw(GDCIDX, 0x0000); /* set/reset */
2084 outw(GDCIDX, 0x0001); /* set/reset enable */
2088 packed_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2093 int offset; /* offset within window */
2096 banksize = adp->va_window_size;
2098 cx *= adp->va_info.vi_pixel_size;
2100 pos = adp->va_line_width*y + x*adp->va_info.vi_pixel_size;
2101 if (bank != pos/banksize) {
2102 (*vidsw[adp->va_index]->set_win_org)(adp, pos);
2103 bank = pos/banksize;
2105 offset = pos%banksize;
2106 end = imin(offset + cx, banksize);
2107 fill_io(val, adp->va_window + offset,
2108 (end - offset)/adp->va_info.vi_pixel_size);
2109 /* the line may cross the window boundary */
2110 if (offset + cx > banksize) {
2111 ++bank; /* next bank */
2112 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize);
2113 end = offset + cx - banksize;
2114 fill_io(val, adp->va_window, end/adp->va_info.vi_pixel_size);
2122 direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2127 int offset; /* offset within window */
2131 * XXX: the function assumes that banksize is a muliple of
2132 * sizeof(u_int16_t).
2134 banksize = adp->va_window_size;
2136 cx *= sizeof(u_int16_t);
2138 pos = adp->va_line_width*y + x*sizeof(u_int16_t);
2139 if (bank != pos/banksize) {
2140 (*vidsw[adp->va_index]->set_win_org)(adp, pos);
2141 bank = pos/banksize;
2143 offset = pos%banksize;
2144 end = imin(offset + cx, banksize);
2145 fillw_io(val, adp->va_window + offset,
2146 (end - offset)/sizeof(u_int16_t));
2147 /* the line may cross the window boundary */
2148 if (offset + cx > banksize) {
2149 ++bank; /* next bank */
2150 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize);
2151 end = offset + cx - banksize;
2152 fillw_io(val, adp->va_window, end/sizeof(u_int16_t));
2160 direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2165 int offset; /* offset within window */
2171 b[0] = val & 0x0000ff;
2172 b[1] = (val >> 8) & 0x0000ff;
2173 b[2] = (val >> 16) & 0x0000ff;
2174 banksize = adp->va_window_size;
2178 pos = adp->va_line_width*y + x*3;
2179 if (bank != pos/banksize) {
2180 (*vidsw[adp->va_index]->set_win_org)(adp, pos);
2181 bank = pos/banksize;
2183 offset = pos%banksize;
2184 end = imin(offset + cx, banksize);
2185 for (i = 0, j = offset; j < end; i = (++i)%3, ++j) {
2186 writeb(adp->va_window + j, b[i]);
2188 /* the line may cross the window boundary */
2189 if (offset + cx >= banksize) {
2190 ++bank; /* next bank */
2191 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize);
2193 end = offset + cx - banksize;
2194 for (; j < end; i = (++i)%3, ++j) {
2195 writeb(adp->va_window + j, b[i]);
2204 direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2209 int offset; /* offset within window */
2213 * XXX: the function assumes that banksize is a muliple of
2214 * sizeof(u_int32_t).
2216 banksize = adp->va_window_size;
2218 cx *= sizeof(u_int32_t);
2220 pos = adp->va_line_width*y + x*sizeof(u_int32_t);
2221 if (bank != pos/banksize) {
2222 (*vidsw[adp->va_index]->set_win_org)(adp, pos);
2223 bank = pos/banksize;
2225 offset = pos%banksize;
2226 end = imin(offset + cx, banksize);
2227 filll_io(val, adp->va_window + offset,
2228 (end - offset)/sizeof(u_int32_t));
2229 /* the line may cross the window boundary */
2230 if (offset + cx > banksize) {
2231 ++bank; /* next bank */
2232 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize);
2233 end = offset + cx - banksize;
2234 filll_io(val, adp->va_window, end/sizeof(u_int32_t));
2242 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2244 switch (adp->va_info.vi_mem_model) {
2245 case V_INFO_MM_TEXT:
2246 /* do nothing? XXX */
2248 case V_INFO_MM_PLANAR:
2249 planar_fill_rect(adp, val, x, y, cx, cy);
2251 case V_INFO_MM_PACKED:
2252 packed_fill_rect(adp, val, x, y, cx, cy);
2254 case V_INFO_MM_DIRECT:
2255 switch (adp->va_info.vi_pixel_size) {
2256 case sizeof(u_int16_t):
2257 direct_fill_rect16(adp, val, x, y, cx, cy);
2260 direct_fill_rect24(adp, val, x, y, cx, cy);
2262 case sizeof(u_int32_t):
2263 direct_fill_rect32(adp, val, x, y, cx, cy);
2272 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2279 vga_bitblt(video_adapter_t *adp,...)
2285 #endif /* !VGA_NO_MODE_CHANGE */
2288 get_palette(video_adapter_t *adp, int base, int count,
2289 u_char *red, u_char *green, u_char *blue, u_char *trans)
2295 if (count < 0 || base < 0 || count > 256 || base > 256 ||
2299 r = kmalloc(count*3, M_DEVBUF, M_WAITOK);
2302 if (vga_save_palette2(adp, base, count, r, g, b)) {
2306 copyout(r, red, count);
2307 copyout(g, green, count);
2308 copyout(b, blue, count);
2309 if (trans != NULL) {
2311 copyout(r, trans, count);
2319 set_palette(video_adapter_t *adp, int base, int count,
2320 u_char *red, u_char *green, u_char *blue, u_char *trans)
2327 if (count < 0 || base < 0 || count > 256 || base > 256 ||
2331 r = kmalloc(count*3, M_DEVBUF, M_WAITOK);
2334 err = copyin(red, r, count);
2336 err = copyin(green, g, count);
2338 err = copyin(blue, b, count);
2340 err = vga_load_palette2(adp, base, count, r, g, b);
2343 return (err ? ENODEV : 0);
2347 vga_dev_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg)
2350 case FBIO_GETWINORG: /* get frame buffer window origin */
2354 case FBIO_SETWINORG: /* set frame buffer window origin */
2357 case FBIO_SETDISPSTART: /* set display start address */
2358 return (set_display_start(adp,
2359 ((video_display_start_t *)arg)->x,
2360 ((video_display_start_t *)arg)->y)
2363 case FBIO_SETLINEWIDTH: /* set scan line length in pixel */
2364 return (set_line_length(adp, *(u_int *)arg) ? ENODEV : 0);
2366 case FBIO_GETPALETTE: /* get color palette */
2367 return get_palette(adp, ((video_color_palette_t *)arg)->index,
2368 ((video_color_palette_t *)arg)->count,
2369 ((video_color_palette_t *)arg)->red,
2370 ((video_color_palette_t *)arg)->green,
2371 ((video_color_palette_t *)arg)->blue,
2372 ((video_color_palette_t *)arg)->transparent);
2374 case FBIO_SETPALETTE: /* set color palette */
2375 return set_palette(adp, ((video_color_palette_t *)arg)->index,
2376 ((video_color_palette_t *)arg)->count,
2377 ((video_color_palette_t *)arg)->red,
2378 ((video_color_palette_t *)arg)->green,
2379 ((video_color_palette_t *)arg)->blue,
2380 ((video_color_palette_t *)arg)->transparent);
2382 case FBIOGTYPE: /* get frame buffer type info. */
2383 ((struct fbtype *)arg)->fb_type = fb_type(adp->va_type);
2384 ((struct fbtype *)arg)->fb_height = adp->va_info.vi_height;
2385 ((struct fbtype *)arg)->fb_width = adp->va_info.vi_width;
2386 ((struct fbtype *)arg)->fb_depth = adp->va_info.vi_depth;
2387 if ((adp->va_info.vi_depth <= 1) || (adp->va_info.vi_depth > 8))
2388 ((struct fbtype *)arg)->fb_cmsize = 0;
2390 ((struct fbtype *)arg)->fb_cmsize = 1 << adp->va_info.vi_depth;
2391 ((struct fbtype *)arg)->fb_size = adp->va_buffer_size;
2394 case FBIOGETCMAP: /* get color palette */
2395 return get_palette(adp, ((struct fbcmap *)arg)->index,
2396 ((struct fbcmap *)arg)->count,
2397 ((struct fbcmap *)arg)->red,
2398 ((struct fbcmap *)arg)->green,
2399 ((struct fbcmap *)arg)->blue, NULL);
2401 case FBIOPUTCMAP: /* set color palette */
2402 return set_palette(adp, ((struct fbcmap *)arg)->index,
2403 ((struct fbcmap *)arg)->count,
2404 ((struct fbcmap *)arg)->red,
2405 ((struct fbcmap *)arg)->green,
2406 ((struct fbcmap *)arg)->blue, NULL);
2409 return fb_commonioctl(adp, cmd, arg);
2414 dump_buffer(u_char *buf, size_t len)
2418 for(i = 0; i < len;) {
2419 kprintf("%02x ", buf[i]);
2420 if ((++i % 16) == 0)
2427 * Print some information about the video adapter and video modes,
2428 * with requested level of details.
2431 vga_diag(video_adapter_t *adp, int level)
2444 kprintf("vga: DCC code:0x%02x\n",
2445 readb(BIOS_PADDRTOVADDR(0x488)));
2446 kprintf("vga: CRTC:0x%x, video option:0x%02x, ",
2447 readw(BIOS_PADDRTOVADDR(0x463)),
2448 readb(BIOS_PADDRTOVADDR(0x487)));
2449 kprintf("rows:%d, cols:%d, font height:%d\n",
2450 readb(BIOS_PADDRTOVADDR(0x44a)),
2451 readb(BIOS_PADDRTOVADDR(0x484)) + 1,
2452 readb(BIOS_PADDRTOVADDR(0x485)));
2453 #endif /* VGA_NO_BIOS */
2454 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
2455 kprintf("vga: param table:%p\n", video_mode_ptr);
2456 kprintf("vga: rows_offset:%d\n", rows_offset);
2458 #endif /* FB_DEBUG > 1 */
2460 fb_dump_adp_info(VGA_DRIVER_NAME, adp, level);
2463 if (adp->va_flags & V_ADP_MODECHANGE) {
2464 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) {
2465 if (bios_vmode[i].vi_mode == NA)
2467 if (get_mode_param(bios_vmode[i].vi_mode) == NULL)
2469 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &bios_vmode[i], level);
2472 vga_get_info(adp, adp->va_initial_mode, &info); /* shouldn't fail */
2473 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &info, level);
2475 #endif /* FB_DEBUG > 1 */
2477 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
2478 if (video_mode_ptr == NULL)
2479 kprintf("vga%d: %s: WARNING: video mode switching is not "
2480 "fully supported on this adapter\n",
2481 adp->va_unit, adp->va_name);
2486 kprintf("VGA parameters upon power-up\n");
2487 dump_buffer(adpstate.regs, sizeof(adpstate.regs));
2488 kprintf("VGA parameters in BIOS for mode %d\n", adp->va_initial_mode);
2489 dump_buffer(adpstate2.regs, sizeof(adpstate2.regs));
2491 mp = get_mode_param(adp->va_initial_mode);
2492 if (mp == NULL) /* this shouldn't be happening */
2494 kprintf("VGA parameters to be used for mode %d\n", adp->va_initial_mode);
2495 dump_buffer(mp, V_MODE_PARAM_SIZE);