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.
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
39 #include "opt_syscons.h" /* should be removed in the future, XXX */
41 #include <sys/param.h>
42 #include <sys/systm.h>
43 #include <sys/kernel.h>
45 #include <sys/fcntl.h>
46 #include <sys/malloc.h>
50 #include <vm/vm_param.h>
53 #include <machine/md_var.h>
54 #if defined(__i386__) || defined(__amd64__)
55 #include <machine/pc/bios.h>
57 #include <machine/bus.h>
59 #include <dev/fb/fbreg.h>
60 #include <dev/fb/vgareg.h>
62 #include <isa/isareg.h>
68 /* XXX machine/pc/bios.h has got too much i386-specific stuff in it */
69 #ifndef BIOS_PADDRTOVADDR
70 #define BIOS_PADDRTOVADDR(x) (x)
74 vga_probe_unit(int unit, video_adapter_t *buf, int flags)
80 sw = vid_get_switch(VGA_DRIVER_NAME);
83 error = (*sw->probe)(unit, &adp, NULL, flags);
86 bcopy(adp, buf, sizeof(*buf));
91 vga_attach_unit(int unit, vga_softc_t *sc, int flags)
96 sw = vid_get_switch(VGA_DRIVER_NAME);
100 error = (*sw->probe)(unit, &sc->adp, NULL, flags);
103 return (*sw->init)(unit, sc->adp, flags);
106 /* cdev driver functions */
108 #ifdef FB_INSTALL_CDEV
111 vga_open(struct cdev *dev, vga_softc_t *sc, int flag, int mode, struct thread *td)
115 if (mode & (O_CREAT | O_APPEND | O_TRUNC))
118 return genfbopen(&sc->gensc, sc->adp, flag, mode, td);
122 vga_close(struct cdev *dev, vga_softc_t *sc, int flag, int mode, struct thread *td)
124 return genfbclose(&sc->gensc, sc->adp, flag, mode, td);
128 vga_read(struct cdev *dev, vga_softc_t *sc, struct uio *uio, int flag)
130 return genfbread(&sc->gensc, sc->adp, uio, flag);
134 vga_write(struct cdev *dev, vga_softc_t *sc, struct uio *uio, int flag)
136 return genfbread(&sc->gensc, sc->adp, uio, flag);
140 vga_ioctl(struct cdev *dev, vga_softc_t *sc, u_long cmd, caddr_t arg, int flag,
143 return genfbioctl(&sc->gensc, sc->adp, cmd, arg, flag, td);
147 vga_mmap(struct cdev *dev, vga_softc_t *sc, vm_ooffset_t offset,
148 vm_offset_t *paddr, int prot, vm_memattr_t *memattr)
150 return genfbmmap(&sc->gensc, sc->adp, offset, paddr, prot, memattr);
153 #endif /* FB_INSTALL_CDEV */
159 #include <dev/fb/vesa.h>
162 #define probe_done(adp) ((adp)->va_flags & V_ADP_PROBED)
163 #define init_done(adp) ((adp)->va_flags & V_ADP_INITIALIZED)
164 #define config_done(adp) ((adp)->va_flags & V_ADP_REGISTERED)
166 /* for compatibility with old kernel options */
167 #ifdef SC_ALT_SEQACCESS
168 #undef SC_ALT_SEQACCESS
169 #undef VGA_ALT_SEQACCESS
170 #define VGA_ALT_SEQACCESS 1
175 #undef VGA_SLOW_IOACCESS
176 #define VGA_SLOW_IOACCESS
179 /* architecture dependent option */
180 #if !defined(__i386__) && !defined(__amd64__)
181 #define VGA_NO_BIOS 1
184 /* this should really be in `rtc.h' */
185 #define RTC_EQUIPMENT 0x14
188 #define V_MODE_MAP_SIZE (M_VGA_CG320 + 1)
189 #define V_MODE_PARAM_SIZE 64
191 /* video adapter state buffer */
194 #define V_STATE_SIG 0x736f6962
195 u_char regs[V_MODE_PARAM_SIZE];
197 typedef struct adp_state adp_state_t;
199 /* video adapter information */
203 #define DCC_EGAMONO 3
208 * NOTE: `va_window' should have a virtual address, but is initialized
209 * with a physical address in the following table, as verify_adapter()
210 * will perform address conversion at run-time.
212 static video_adapter_t adapter_init_value[] = {
214 { 0, KD_MONO, "mda", 0, 0, 0, IO_MDA, IO_MDASIZE, MONO_CRTC,
215 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE,
218 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC,
219 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE,
222 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC,
223 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE,
226 { 0, KD_EGA, "ega", 0, 0, 0, IO_MDA, 48, MONO_CRTC,
227 EGA_BUF_BASE, EGA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE,
230 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC,
231 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE,
234 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC,
235 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE,
239 static video_adapter_t biosadapter[2];
240 static int biosadapters = 0;
242 /* video driver declarations */
243 static int vga_configure(int flags);
244 int (*vga_sub_configure)(int flags);
246 static int vga_nop(void);
248 static int vga_error(void);
249 static vi_probe_t vga_probe;
250 static vi_init_t vga_init;
251 static vi_get_info_t vga_get_info;
252 static vi_query_mode_t vga_query_mode;
253 static vi_set_mode_t vga_set_mode;
254 static vi_save_font_t vga_save_font;
255 static vi_load_font_t vga_load_font;
256 static vi_show_font_t vga_show_font;
257 static vi_save_palette_t vga_save_palette;
258 static vi_load_palette_t vga_load_palette;
259 static vi_set_border_t vga_set_border;
260 static vi_save_state_t vga_save_state;
261 static vi_load_state_t vga_load_state;
262 static vi_set_win_org_t vga_set_origin;
263 static vi_read_hw_cursor_t vga_read_hw_cursor;
264 static vi_set_hw_cursor_t vga_set_hw_cursor;
265 static vi_set_hw_cursor_shape_t vga_set_hw_cursor_shape;
266 static vi_blank_display_t vga_blank_display;
267 static vi_mmap_t vga_mmap_buf;
268 static vi_ioctl_t vga_dev_ioctl;
269 #ifndef VGA_NO_MODE_CHANGE
270 static vi_clear_t vga_clear;
271 static vi_fill_rect_t vga_fill_rect;
272 static vi_bitblt_t vga_bitblt;
273 #else /* VGA_NO_MODE_CHANGE */
274 #define vga_clear (vi_clear_t *)vga_error
275 #define vga_fill_rect (vi_fill_rect_t *)vga_error
276 #define vga_bitblt (vi_bitblt_t *)vga_error
278 static vi_diag_t vga_diag;
280 static video_switch_t vgavidsw = {
297 vga_set_hw_cursor_shape,
309 VIDEO_DRIVER(mda, vgavidsw, NULL);
310 VIDEO_DRIVER(cga, vgavidsw, NULL);
311 VIDEO_DRIVER(ega, vgavidsw, NULL);
312 VIDEO_DRIVER(vga, vgavidsw, vga_configure);
314 /* VGA BIOS standard video modes */
318 static video_info_t bios_vmode[] = {
320 { M_B40x25, V_INFO_COLOR, 40, 25, 8, 8, 2, 1,
321 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
322 { M_C40x25, V_INFO_COLOR, 40, 25, 8, 8, 4, 1,
323 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
324 { M_B80x25, V_INFO_COLOR, 80, 25, 8, 8, 2, 1,
325 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
326 { M_C80x25, V_INFO_COLOR, 80, 25, 8, 8, 4, 1,
327 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
329 { M_ENH_B40x25, V_INFO_COLOR, 40, 25, 8, 14, 2, 1,
330 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
331 { M_ENH_C40x25, V_INFO_COLOR, 40, 25, 8, 14, 4, 1,
332 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
333 { M_ENH_B80x25, V_INFO_COLOR, 80, 25, 8, 14, 2, 1,
334 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
335 { M_ENH_C80x25, V_INFO_COLOR, 80, 25, 8, 14, 4, 1,
336 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
338 { M_VGA_C40x25, V_INFO_COLOR, 40, 25, 8, 16, 4, 1,
339 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
340 { M_VGA_M80x25, 0, 80, 25, 8, 16, 2, 1,
341 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
342 { M_VGA_C80x25, V_INFO_COLOR, 80, 25, 8, 16, 4, 1,
343 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
345 { M_EGAMONO80x25, 0, 80, 25, 8, 14, 2, 1,
346 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
348 { M_ENH_B80x43, V_INFO_COLOR, 80, 43, 8, 8, 2, 1,
349 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
350 { M_ENH_C80x43, V_INFO_COLOR, 80, 43, 8, 8, 4, 1,
351 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
353 { M_VGA_M80x30, 0, 80, 30, 8, 16, 2, 1,
354 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
355 { M_VGA_C80x30, V_INFO_COLOR, 80, 30, 8, 16, 4, 1,
356 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
357 { M_VGA_M80x50, 0, 80, 50, 8, 8, 2, 1,
358 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
359 { M_VGA_C80x50, V_INFO_COLOR, 80, 50, 8, 8, 4, 1,
360 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
361 { M_VGA_M80x60, 0, 80, 60, 8, 8, 2, 1,
362 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
363 { M_VGA_C80x60, V_INFO_COLOR, 80, 60, 8, 8, 4, 1,
364 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
366 #ifndef VGA_NO_MODE_CHANGE
369 { M_VGA_M90x25, 0, 90, 25, 8, 16, 2, 1,
370 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
371 { M_VGA_C90x25, V_INFO_COLOR, 90, 25, 8, 16, 4, 1,
372 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
373 { M_VGA_M90x30, 0, 90, 30, 8, 16, 2, 1,
374 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
375 { M_VGA_C90x30, V_INFO_COLOR, 90, 30, 8, 16, 4, 1,
376 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
377 { M_VGA_M90x43, 0, 90, 43, 8, 8, 2, 1,
378 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
379 { M_VGA_C90x43, V_INFO_COLOR, 90, 43, 8, 8, 4, 1,
380 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
381 { M_VGA_M90x50, 0, 90, 50, 8, 8, 2, 1,
382 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
383 { M_VGA_C90x50, V_INFO_COLOR, 90, 50, 8, 8, 4, 1,
384 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
385 { M_VGA_M90x60, 0, 90, 60, 8, 8, 2, 1,
386 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
387 { M_VGA_C90x60, V_INFO_COLOR, 90, 60, 8, 8, 4, 1,
388 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
389 #endif /* VGA_WIDTH90 */
392 { M_BG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1,
393 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA },
394 { M_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1,
395 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA },
396 { M_BG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 1, 1,
397 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA },
399 { M_CG320_D, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 4, 4,
400 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0,
402 { M_CG640_E, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 4, 4,
403 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
405 { M_EGAMONOAPA, V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4,
406 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, 64*1024, 0, 0 ,
408 { M_ENHMONOAPA2,V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4,
409 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
411 { M_CG640x350, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 2, 2,
412 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
414 { M_ENH_CG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4,
415 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
418 { M_BG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4,
419 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
421 { M_CG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4,
422 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
424 { M_VGA_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 8, 1,
425 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0,
426 V_INFO_MM_PACKED, 1 },
427 { M_VGA_MODEX, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 240, 8, 8, 8, 4,
428 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0,
430 #endif /* VGA_NO_MODE_CHANGE */
435 static int vga_init_done = FALSE;
436 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
437 static u_char *video_mode_ptr = NULL; /* EGA/VGA */
438 static u_char *video_mode_ptr2 = NULL; /* CGA/MDA */
440 static u_char *mode_map[V_MODE_MAP_SIZE];
441 static adp_state_t adpstate;
442 static adp_state_t adpstate2;
443 static int rows_offset = 1;
445 /* local macros and functions */
446 #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff))
448 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
449 static void map_mode_table(u_char *map[], u_char *table, int max);
451 static void clear_mode_map(video_adapter_t *adp, u_char *map[], int max,
453 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
454 static int map_mode_num(int mode);
456 static int map_gen_mode_num(int type, int color, int mode);
457 static int map_bios_mode_num(int type, int color, int bios_mode);
458 static u_char *get_mode_param(int mode);
460 static void fill_adapter_param(int code, video_adapter_t *adp);
462 static int verify_adapter(video_adapter_t *adp);
463 static void update_adapter_info(video_adapter_t *adp, video_info_t *info);
464 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
465 #define COMP_IDENTICAL 0
466 #define COMP_SIMILAR 1
467 #define COMP_DIFFERENT 2
468 static int comp_adpregs(u_char *buf1, u_char *buf2);
470 static int probe_adapters(void);
471 static int set_line_length(video_adapter_t *adp, int pixel);
472 static int set_display_start(video_adapter_t *adp, int x, int y);
474 #ifndef VGA_NO_MODE_CHANGE
476 static void set_width90(adp_state_t *params);
478 #endif /* !VGA_NO_MODE_CHANGE */
480 #ifndef VGA_NO_FONT_LOADING
481 #define PARAM_BUFSIZE 6
482 static void set_font_mode(video_adapter_t *adp, u_char *buf);
483 static void set_normal_mode(video_adapter_t *adp, u_char *buf);
486 #ifndef VGA_NO_MODE_CHANGE
487 static void filll_io(int val, vm_offset_t d, size_t size);
488 static void planar_fill(video_adapter_t *adp, int val);
489 static void packed_fill(video_adapter_t *adp, int val);
490 static void direct_fill(video_adapter_t *adp, int val);
492 static void planar_fill_rect(video_adapter_t *adp, int val, int x, int y,
494 static void packed_fill_rect(video_adapter_t *adp, int val, int x, int y,
496 static void direct_fill_rect16(video_adapter_t *adp, int val, int x, int y,
498 static void direct_fill_rect24(video_adapter_t *adp, int val, int x, int y,
500 static void direct_fill_rect32(video_adapter_t *adp, int val, int x, int y,
503 #endif /* !VGA_NO_MODE_CHANGE */
505 static void dump_buffer(u_char *buf, size_t len);
507 #define ISMAPPED(pa, width) \
508 (((pa) <= (u_long)0x1000 - (width)) \
509 || ((pa) >= ISA_HOLE_START && (pa) <= 0x100000 - (width)))
511 #define prologue(adp, flag, err) \
512 if (!vga_init_done || !((adp)->va_flags & (flag))) \
515 /* a backdoor for the console driver */
517 vga_configure(int flags)
522 for (i = 0; i < biosadapters; ++i) {
523 if (!probe_done(&biosadapter[i]))
525 biosadapter[i].va_flags |= V_ADP_INITIALIZED;
526 if (!config_done(&biosadapter[i])) {
527 if (vid_register(&biosadapter[i]) < 0)
529 biosadapter[i].va_flags |= V_ADP_REGISTERED;
532 if (vga_sub_configure != NULL)
533 (*vga_sub_configure)(flags);
538 /* local subroutines */
540 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
541 /* construct the mode parameter map */
543 map_mode_table(u_char *map[], u_char *table, int max)
547 for(i = 0; i < max; ++i)
548 map[i] = table + i*V_MODE_PARAM_SIZE;
549 for(; i < V_MODE_MAP_SIZE; ++i)
552 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */
555 clear_mode_map(video_adapter_t *adp, u_char *map[], int max, int color)
561 * NOTE: we don't touch `bios_vmode[]' because it is shared
564 for(i = 0; i < max; ++i) {
565 if (vga_get_info(adp, i, &info))
567 if ((info.vi_flags & V_INFO_COLOR) != color)
572 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
573 /* map the non-standard video mode to a known mode number */
575 map_mode_num(int mode)
581 { M_ENH_B80x43, M_ENH_B80x25 },
582 { M_ENH_C80x43, M_ENH_C80x25 },
583 { M_VGA_M80x30, M_VGA_M80x25 },
584 { M_VGA_C80x30, M_VGA_C80x25 },
585 { M_VGA_M80x50, M_VGA_M80x25 },
586 { M_VGA_C80x50, M_VGA_C80x25 },
587 { M_VGA_M80x60, M_VGA_M80x25 },
588 { M_VGA_C80x60, M_VGA_C80x25 },
590 { M_VGA_M90x25, M_VGA_M80x25 },
591 { M_VGA_C90x25, M_VGA_C80x25 },
592 { M_VGA_M90x30, M_VGA_M80x25 },
593 { M_VGA_C90x30, M_VGA_C80x25 },
594 { M_VGA_M90x43, M_VGA_M80x25 },
595 { M_VGA_C90x43, M_ENH_C80x25 },
596 { M_VGA_M90x50, M_VGA_M80x25 },
597 { M_VGA_C90x50, M_VGA_C80x25 },
598 { M_VGA_M90x60, M_VGA_M80x25 },
599 { M_VGA_C90x60, M_VGA_C80x25 },
601 { M_VGA_MODEX, M_VGA_CG320 },
605 for (i = 0; i < nitems(mode_map); ++i) {
606 if (mode_map[i].from == mode)
607 return mode_map[i].to;
611 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */
613 /* map a generic video mode to a known mode number */
615 map_gen_mode_num(int type, int color, int mode)
622 { M_TEXT_80x30, M_VGA_C80x30, M_VGA_M80x30, },
623 { M_TEXT_80x43, M_ENH_C80x43, M_ENH_B80x43, },
624 { M_TEXT_80x50, M_VGA_C80x50, M_VGA_M80x50, },
625 { M_TEXT_80x60, M_VGA_C80x60, M_VGA_M80x60, },
629 if (mode == M_TEXT_80x25) {
643 return M_EGAMONO80x25;
651 return M_EGAMONO80x25; /* XXX: this name is confusing */
658 for (i = 0; i < nitems(mode_map); ++i) {
659 if (mode_map[i].from == mode)
660 return ((color) ? mode_map[i].to_color : mode_map[i].to_mono);
665 /* turn the BIOS video number into our video mode number */
667 map_bios_mode_num(int type, int color, int bios_mode)
669 static int cga_modes[7] = {
670 M_B40x25, M_C40x25, /* 0, 1 */
671 M_B80x25, M_C80x25, /* 2, 3 */
675 static int ega_modes[17] = {
676 M_ENH_B40x25, M_ENH_C40x25, /* 0, 1 */
677 M_ENH_B80x25, M_ENH_C80x25, /* 2, 3 */
680 M_EGAMONO80x25, /* 7 */
684 M_ENHMONOAPA2, /* XXX: video momery > 64K */
685 M_ENH_CG640, /* XXX: video momery > 64K */
687 static int vga_modes[20] = {
688 M_VGA_C40x25, M_VGA_C40x25, /* 0, 1 */
689 M_VGA_C80x25, M_VGA_C80x25, /* 2, 3 */
692 M_VGA_M80x25, /* 7 */
698 M_BG640x480, M_CG640x480,
705 if (bios_mode < nitems(vga_modes))
706 return vga_modes[bios_mode];
714 if (bios_mode < nitems(ega_modes))
715 return ega_modes[bios_mode];
719 return M_EGAMONO80x25;
723 if (bios_mode < nitems(cga_modes))
724 return cga_modes[bios_mode];
731 return M_EGAMONO80x25; /* XXX: this name is confusing */
739 /* look up a parameter table entry */
741 *get_mode_param(int mode)
743 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
744 if (mode >= V_MODE_MAP_SIZE)
745 mode = map_mode_num(mode);
747 if ((mode >= 0) && (mode < V_MODE_MAP_SIZE))
748 return mode_map[mode];
755 fill_adapter_param(int code, video_adapter_t *adp)
761 { DCC_MONO, DCC_EGA40 /* CGA monitor */ },
762 { DCC_MONO, DCC_EGA80 /* CGA monitor */ },
763 { DCC_MONO, DCC_EGA80 },
764 { DCC_MONO, DCC_EGA80 },
765 { DCC_CGA40, DCC_EGAMONO },
766 { DCC_CGA80, DCC_EGAMONO },
767 { DCC_EGA40 /* CGA monitor */, DCC_MONO},
768 { DCC_EGA80 /* CGA monitor */, DCC_MONO},
769 { DCC_EGA80, DCC_MONO },
770 { DCC_EGA80, DCC_MONO },
771 { DCC_EGAMONO, DCC_CGA40 },
772 { DCC_EGAMONO, DCC_CGA80 },
775 if ((code < 0) || (code >= nitems(dcc))) {
776 adp[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO];
777 adp[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80];
779 adp[V_ADP_PRIMARY] = adapter_init_value[dcc[code].primary];
780 adp[V_ADP_SECONDARY] = adapter_init_value[dcc[code].secondary];
783 #endif /* VGA_NO_BIOS */
786 verify_adapter(video_adapter_t *adp)
790 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
794 buf = BIOS_PADDRTOVADDR(adp->va_window);
797 if (readw(buf) != 0xA55A)
801 switch (adp->va_type) {
804 outb(adp->va_crtc_addr, 7);
805 if (inb(adp->va_crtc_addr) == 7) {
806 adp->va_type = KD_VGA;
807 adp->va_name = "vga";
808 adp->va_flags |= V_ADP_STATESAVE | V_ADP_PALETTE;
810 adp->va_flags |= V_ADP_STATELOAD | V_ADP_BORDER;
811 /* the color adapter may be in the 40x25 mode... XXX */
813 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
814 /* get the BIOS video mode pointer */
815 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8);
816 p = BIOS_SADDRTOLADDR(p);
817 if (ISMAPPED(p, sizeof(u_int32_t))) {
818 p = *(u_int32_t *)BIOS_PADDRTOVADDR(p);
819 p = BIOS_SADDRTOLADDR(p);
820 if (ISMAPPED(p, V_MODE_PARAM_SIZE))
821 video_mode_ptr = (u_char *)BIOS_PADDRTOVADDR(p);
827 adp->va_flags |= V_ADP_COLOR | V_ADP_BORDER;
828 /* may be in the 40x25 mode... XXX */
829 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
830 /* get the BIOS video mode pointer */
831 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4);
832 p = BIOS_SADDRTOLADDR(p);
833 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p);
838 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
839 /* get the BIOS video mode pointer */
840 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4);
841 p = BIOS_SADDRTOLADDR(p);
842 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p);
851 update_adapter_info(video_adapter_t *adp, video_info_t *info)
853 adp->va_flags &= ~V_ADP_COLOR;
855 (info->vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0;
857 (adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC;
858 adp->va_window = BIOS_PADDRTOVADDR(info->vi_window);
859 adp->va_window_size = info->vi_window_size;
860 adp->va_window_gran = info->vi_window_gran;
861 adp->va_window_orig = 0;
863 adp->va_buffer = info->vi_buffer;
864 adp->va_buffer_size = info->vi_buffer_size;
865 adp->va_flags &= ~V_ADP_CWIDTH9;
866 if (info->vi_flags & V_INFO_CWIDTH9)
867 adp->va_flags |= V_ADP_CWIDTH9;
868 if (info->vi_mem_model == V_INFO_MM_VGAX) {
869 adp->va_line_width = info->vi_width/2;
870 } else if (info->vi_flags & V_INFO_GRAPHICS) {
871 switch (info->vi_depth/info->vi_planes) {
873 adp->va_line_width = info->vi_width/8;
876 adp->va_line_width = info->vi_width/4;
879 adp->va_line_width = info->vi_width/2;
882 default: /* shouldn't happen */
883 adp->va_line_width = info->vi_width;
887 adp->va_line_width = info->vi_width;
889 adp->va_disp_start.x = 0;
890 adp->va_disp_start.y = 0;
891 bcopy(info, &adp->va_info, sizeof(adp->va_info));
894 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
895 /* compare two parameter table entries */
897 comp_adpregs(u_char *buf1, u_char *buf2)
901 } params[V_MODE_PARAM_SIZE] = {
902 {0xff}, {0x00}, {0xff}, /* COLS}, ROWS}, POINTS */
903 {0x00}, {0x00}, /* page length */
904 {0xfe}, {0xff}, {0xff}, {0xff}, /* sequencer registers */
905 {0xf3}, /* misc register */
906 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, /* CRTC */
907 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff},
908 {0x00}, {0x00}, {0x00}, {0x00}, {0x00},
909 {0x00}, {0xff}, {0x7f}, {0xff}, {0xff},
910 {0x7f}, {0xff}, {0xff}, {0xef}, {0xff},
911 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* attribute controller regs */
912 {0xff}, {0xff}, {0xff}, {0xff}, {0xff},
913 {0xff}, {0xff}, {0xff}, {0xff}, {0xff},
914 {0xff}, {0xff}, {0xff}, {0xff}, {0xf0},
915 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* GDC register */
916 {0xff}, {0xff}, {0xff}, {0xff},
918 int identical = TRUE;
921 if ((buf1 == NULL) || (buf2 == NULL))
922 return COMP_DIFFERENT;
924 for (i = 0; i < nitems(params); ++i) {
925 if (params[i].mask == 0) /* don't care */
927 if ((buf1[i] & params[i].mask) != (buf2[i] & params[i].mask))
928 return COMP_DIFFERENT;
929 if (buf1[i] != buf2[i])
932 return (identical) ? COMP_IDENTICAL : COMP_SIMILAR;
934 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */
936 /* probe video adapters and return the number of detected adapters */
940 video_adapter_t *adp;
942 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
945 int height, i, width;
947 /* do this test only once */
950 vga_init_done = TRUE;
953 * Locate display adapters.
954 * The AT architecture supports up to two adapters. `syscons' allows
955 * the following combinations of adapters:
957 * 2) MDA + EGA/VGA color
958 * 3) CGA + EGA/VGA mono
959 * Note that `syscons' doesn't bother with MCGA as it is only
960 * avaiable for low end PS/2 models which has 80286 or earlier CPUs,
961 * thus, they are not running FreeBSD!
962 * When there are two adapaters in the system, one becomes `primary'
963 * and the other `secondary'. The EGA adapter has a set of DIP
964 * switches on board for this information and the EGA BIOS copies
965 * it in the BIOS data area BIOSDATA_VIDEOSWITCH (40:88).
966 * The VGA BIOS has more sophisticated mechanism and has this
967 * information in BIOSDATA_DCCINDEX (40:8a), but it also maintains
968 * compatibility with the EGA BIOS by updating BIOSDATA_VIDEOSWITCH.
972 * Check rtc and BIOS data area.
973 * XXX: we don't use BIOSDATA_EQUIPMENT, since it is not a dead
974 * copy of RTC_EQUIPMENT. Bits 4 and 5 of ETC_EQUIPMENT are
975 * zeros for EGA and VGA. However, the EGA/VGA BIOS sets
976 * these bits in BIOSDATA_EQUIPMENT according to the monitor
980 if (*(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8)) {
981 /* EGA/VGA BIOS is present */
982 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f,
985 switch ((rtcin(RTC_EQUIPMENT) >> 4) & 3) { /* bit 4 and 5 */
987 /* EGA/VGA: shouldn't be happening */
988 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f,
993 /* FIXME: switch to the 80x25 mode? XXX */
994 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA40];
995 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO];
999 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA80];
1000 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO];
1004 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO];
1005 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80];
1010 /* assume EGA/VGA? XXX */
1011 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_EGA80];
1012 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO];
1013 #endif /* VGA_NO_BIOS */
1016 if (verify_adapter(&biosadapter[V_ADP_SECONDARY]) == 0) {
1018 biosadapter[V_ADP_SECONDARY].va_flags |= V_ADP_PROBED;
1019 biosadapter[V_ADP_SECONDARY].va_mode =
1020 biosadapter[V_ADP_SECONDARY].va_initial_mode =
1021 map_bios_mode_num(biosadapter[V_ADP_SECONDARY].va_type,
1022 biosadapter[V_ADP_SECONDARY].va_flags
1024 biosadapter[V_ADP_SECONDARY].va_initial_bios_mode);
1026 biosadapter[V_ADP_SECONDARY].va_type = -1;
1028 if (verify_adapter(&biosadapter[V_ADP_PRIMARY]) == 0) {
1030 biosadapter[V_ADP_PRIMARY].va_flags |= V_ADP_PROBED;
1032 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode =
1033 readb(BIOS_PADDRTOVADDR(0x449));
1035 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 3; /* XXX */
1037 biosadapter[V_ADP_PRIMARY].va_mode =
1038 biosadapter[V_ADP_PRIMARY].va_initial_mode =
1039 map_bios_mode_num(biosadapter[V_ADP_PRIMARY].va_type,
1040 biosadapter[V_ADP_PRIMARY].va_flags & V_ADP_COLOR,
1041 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode);
1043 biosadapter[V_ADP_PRIMARY] = biosadapter[V_ADP_SECONDARY];
1044 biosadapter[V_ADP_SECONDARY].va_type = -1;
1046 if (biosadapters == 0)
1047 return biosadapters;
1048 biosadapter[V_ADP_PRIMARY].va_unit = V_ADP_PRIMARY;
1049 biosadapter[V_ADP_SECONDARY].va_unit = V_ADP_SECONDARY;
1051 #if 0 /* we don't need these... */
1052 fb_init_struct(&biosadapter[V_ADP_PRIMARY], ...);
1053 fb_init_struct(&biosadapter[V_ADP_SECONDARY], ...);
1058 * We cannot have two video adapter of the same type; there must be
1059 * only one of color or mono adapter, or one each of them.
1061 if (biosadapters > 1) {
1062 if (!((biosadapter[0].va_flags ^ biosadapter[1].va_flags)
1064 /* we have two mono or color adapters!! */
1065 return (biosadapters = 0);
1070 * Ensure a zero start address. The registers are w/o
1071 * for old hardware so it's too hard to relocate the active screen
1073 * This must be done before vga_save_state() for VGA.
1075 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 12);
1076 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0);
1077 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 13);
1078 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0);
1080 /* the video mode parameter table in EGA/VGA BIOS */
1081 /* NOTE: there can be only one EGA/VGA, wheather color or mono,
1082 * recognized by the video BIOS.
1084 if ((biosadapter[V_ADP_PRIMARY].va_type == KD_EGA) ||
1085 (biosadapter[V_ADP_PRIMARY].va_type == KD_VGA)) {
1086 adp = &biosadapter[V_ADP_PRIMARY];
1087 } else if ((biosadapter[V_ADP_SECONDARY].va_type == KD_EGA) ||
1088 (biosadapter[V_ADP_SECONDARY].va_type == KD_VGA)) {
1089 adp = &biosadapter[V_ADP_SECONDARY];
1093 bzero(mode_map, sizeof(mode_map));
1095 if (adp->va_type == KD_VGA) {
1096 vga_save_state(adp, &adpstate, sizeof(adpstate));
1097 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE)
1098 mode_map[adp->va_initial_mode] = adpstate.regs;
1100 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */
1101 if (video_mode_ptr == NULL) {
1102 mode_map[adp->va_initial_mode] = adpstate.regs;
1105 /* discard the table if we are not familiar with it... */
1106 map_mode_table(mode_map, video_mode_ptr, M_VGA_CG320 + 1);
1107 mp = get_mode_param(adp->va_initial_mode);
1109 bcopy(mp, adpstate2.regs, sizeof(adpstate2.regs));
1110 switch (comp_adpregs(adpstate.regs, mp)) {
1111 case COMP_IDENTICAL:
1113 * OK, this parameter table looks reasonably familiar
1117 * This is a kludge for Toshiba DynaBook SS433
1118 * whose BIOS video mode table entry has the actual #
1119 * of rows at the offset 1; BIOSes from other
1120 * manufacturers store the # of rows - 1 there. XXX
1122 rows_offset = adpstate.regs[1] + 1 - mp[1];
1127 * Not exactly the same, but similar enough to be
1128 * trusted. However, use the saved register values
1129 * for the initial mode and other modes which are
1130 * based on the initial mode.
1132 mode_map[adp->va_initial_mode] = adpstate.regs;
1133 rows_offset = adpstate.regs[1] + 1 - mp[1];
1134 adpstate.regs[1] -= rows_offset - 1;
1137 case COMP_DIFFERENT:
1140 * Don't use the parameter table in the BIOS, since
1141 * even the BIOS doesn't use it for the initial mode.
1142 * Restrict the tweaked modes to (in practice) 80x50
1143 * from 80x25 with 400 scan lines, since the only safe
1144 * tweak is changing the characters from 8x16 to 8x8.
1146 video_mode_ptr = NULL;
1147 bzero(mode_map, sizeof(mode_map));
1148 mode_map[adp->va_initial_mode] = adpstate.regs;
1151 width = height = -1;
1152 for (i = 0; i < nitems(bios_vmode); ++i) {
1153 if (bios_vmode[i].vi_mode == adp->va_initial_mode) {
1154 width = bios_vmode[i].vi_width;
1155 height = bios_vmode[i].vi_height;
1159 for (i = 0; i < nitems(bios_vmode); ++i) {
1160 if (bios_vmode[i].vi_mode != adp->va_initial_mode &&
1161 map_mode_num(bios_vmode[i].vi_mode) ==
1162 adp->va_initial_mode &&
1163 (bios_vmode[i].vi_width != width ||
1164 bios_vmode[i].vi_height != 2 * height)) {
1165 bios_vmode[i].vi_mode = NA;
1171 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */
1173 #ifndef VGA_NO_MODE_CHANGE
1174 adp->va_flags |= V_ADP_MODECHANGE;
1176 #ifndef VGA_NO_FONT_LOADING
1177 adp->va_flags |= V_ADP_FONT;
1179 } else if (adp->va_type == KD_EGA) {
1180 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE)
1182 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */
1183 if (video_mode_ptr == NULL) {
1186 map_mode_table(mode_map, video_mode_ptr, M_ENH_C80x25 + 1);
1187 /* XXX how can one validate the EGA table... */
1188 mp = get_mode_param(adp->va_initial_mode);
1190 adp->va_flags |= V_ADP_MODECHANGE;
1191 #ifndef VGA_NO_FONT_LOADING
1192 adp->va_flags |= V_ADP_FONT;
1197 * This is serious. We will not be able to switch video
1200 video_mode_ptr = NULL;
1201 bzero(mode_map, sizeof(mode_map));
1205 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */
1209 /* remove conflicting modes if we have more than one adapter */
1210 if (biosadapters > 0) {
1211 for (i = 0; i < biosadapters; ++i) {
1212 if (!(biosadapter[i].va_flags & V_ADP_MODECHANGE))
1214 clear_mode_map(&biosadapter[i], mode_map, M_VGA_CG320 + 1,
1215 (biosadapter[i].va_flags & V_ADP_COLOR) ?
1217 if ((biosadapter[i].va_type == KD_VGA)
1218 || (biosadapter[i].va_type == KD_EGA)) {
1219 biosadapter[i].va_io_base =
1220 (biosadapter[i].va_flags & V_ADP_COLOR) ?
1222 biosadapter[i].va_io_size = 32;
1227 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
1229 * Attempt to determine the real character width for each mode. 9 wide
1230 * is supposed to be standard for EGA mono mode and most VGA text modes,
1231 * but some hardware doesn't support it, so dynamic configuration is
1232 * needed. Bit 0 in sequencer register 1 is supposed control the width
1233 * (set = 8), but this is unreliable too. Trust that 0 in the sequencer
1234 * bit means 9 wide after verifying that 9 is consistent with some CRTC
1235 * timing. The ratio (Horizontal Total) / (Horizontal Displayed) is
1236 * about 1.2 in all standard 9-wide modes and should be about 9/8 larger
1237 * again in similar 8-wide modes; in practice it is usually about 1.4
1240 for (i = 0; i < nitems(bios_vmode); ++i) {
1241 if (bios_vmode[i].vi_mem_model == V_INFO_MM_TEXT &&
1242 bios_vmode[i].vi_width != 90) {
1243 mp = get_mode_param(map_mode_num(bios_vmode[i].vi_mode));
1244 if (mp != NULL && !(mp[5] & 1) && mp[10] <= mp[11] * 125 / 100)
1245 bios_vmode[i].vi_flags |= V_INFO_CWIDTH9;
1250 /* buffer address */
1251 vga_get_info(&biosadapter[V_ADP_PRIMARY],
1252 biosadapter[V_ADP_PRIMARY].va_initial_mode, &info);
1253 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */
1254 update_adapter_info(&biosadapter[V_ADP_PRIMARY], &info);
1256 if (biosadapters > 1) {
1257 vga_get_info(&biosadapter[V_ADP_SECONDARY],
1258 biosadapter[V_ADP_SECONDARY].va_initial_mode, &info);
1259 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */
1260 update_adapter_info(&biosadapter[V_ADP_SECONDARY], &info);
1264 * XXX: we should verify the following values for the primary adapter...
1265 * crtc I/O port address: *(u_int16_t *)BIOS_PADDRTOVADDR(0x463);
1266 * color/mono display: (*(u_int8_t *)BIOS_PADDRTOVADDR(0x487) & 0x02)
1267 * ? 0 : V_ADP_COLOR;
1268 * columns: *(u_int8_t *)BIOS_PADDRTOVADDR(0x44a);
1269 * rows: *(u_int8_t *)BIOS_PADDRTOVADDR(0x484);
1270 * font size: *(u_int8_t *)BIOS_PADDRTOVADDR(0x485);
1271 * buffer size: *(u_int16_t *)BIOS_PADDRTOVADDR(0x44c);
1274 return biosadapters;
1277 /* set the scan line length in pixel */
1279 set_line_length(video_adapter_t *adp, int pixel)
1282 int ppw; /* pixels per word */
1283 int bpl; /* bytes per line */
1286 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA))
1288 mp = get_mode_param(adp->va_mode);
1292 switch (adp->va_info.vi_mem_model) {
1293 case V_INFO_MM_PLANAR:
1294 ppw = 16/(adp->va_info.vi_depth/adp->va_info.vi_planes);
1295 count = howmany(pixel, ppw)/2;
1296 bpl = (howmany(pixel, ppw)/2)*4;
1298 case V_INFO_MM_PACKED:
1299 count = (pixel + 7)/8;
1300 bpl = rounddown(pixel + 7, 8);
1302 case V_INFO_MM_TEXT:
1303 count = (pixel + 7)/8; /* columns */
1304 bpl = (pixel + 7)/8; /* columns */
1310 if (mp[10 + 0x17] & 0x40) /* CRTC mode control reg */
1311 count *= 2; /* byte mode */
1312 outb(adp->va_crtc_addr, 0x13);
1313 outb(adp->va_crtc_addr + 1, count);
1314 adp->va_line_width = bpl;
1320 set_display_start(video_adapter_t *adp, int x, int y)
1322 int off; /* byte offset (graphics mode)/word offset (text mode) */
1323 int poff; /* pixel offset */
1324 int roff; /* row offset */
1325 int ppb; /* pixels per byte */
1327 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA))
1329 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) {
1330 ppb = 8/(adp->va_info.vi_depth/adp->va_info.vi_planes);
1331 off = y*adp->va_line_width + x/ppb;
1335 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) {
1344 off = y/adp->va_info.vi_cheight*adp->va_line_width + x/ppb;
1345 roff = y%adp->va_info.vi_cheight;
1346 /* FIXME: is this correct? XXX */
1354 outb(adp->va_crtc_addr, 0xc); /* high */
1355 outb(adp->va_crtc_addr + 1, off >> 8);
1356 outb(adp->va_crtc_addr, 0xd); /* low */
1357 outb(adp->va_crtc_addr + 1, off & 0xff);
1359 /* horizontal pel pan */
1360 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) {
1361 inb(adp->va_crtc_addr + 6);
1362 outb(ATC, 0x13 | 0x20);
1364 inb(adp->va_crtc_addr + 6);
1368 /* preset raw scan */
1369 outb(adp->va_crtc_addr, 8);
1370 outb(adp->va_crtc_addr + 1, roff);
1372 adp->va_disp_start.x = x;
1373 adp->va_disp_start.y = y;
1377 #ifndef VGA_NO_MODE_CHANGE
1378 #if defined(__i386__) || defined(__amd64__) /* XXX */
1380 fill(int val, void *d, size_t size)
1387 #endif /* __i386__ */
1390 filll_io(int val, vm_offset_t d, size_t size)
1392 while (size-- > 0) {
1394 d += sizeof(u_int32_t);
1397 #endif /* !VGA_NO_MODE_CHANGE */
1416 vga_probe(int unit, video_adapter_t **adpp, void *arg, int flags)
1419 if (unit >= biosadapters)
1422 *adpp = &biosadapter[unit];
1428 vga_init(int unit, video_adapter_t *adp, int flags)
1430 if ((unit >= biosadapters) || (adp == NULL) || !probe_done(adp))
1433 if (!init_done(adp)) {
1434 /* nothing to do really... */
1435 adp->va_flags |= V_ADP_INITIALIZED;
1438 if (!config_done(adp)) {
1439 if (vid_register(adp) < 0)
1441 adp->va_flags |= V_ADP_REGISTERED;
1443 if (vga_sub_configure != NULL)
1444 (*vga_sub_configure)(0);
1451 * Return the video_info structure of the requested video mode.
1456 vga_get_info(video_adapter_t *adp, int mode, video_info_t *info)
1463 mode = map_gen_mode_num(adp->va_type, adp->va_flags & V_ADP_COLOR, mode);
1464 #ifndef VGA_NO_MODE_CHANGE
1465 if (adp->va_flags & V_ADP_MODECHANGE) {
1467 * If the parameter table entry for this mode is not found,
1468 * the mode is not supported...
1470 if (get_mode_param(mode) == NULL)
1473 #endif /* VGA_NO_MODE_CHANGE */
1476 * Even if we don't support video mode switching on this adapter,
1477 * the information on the initial (thus current) video mode
1478 * should be made available.
1480 if (mode != adp->va_initial_mode)
1484 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) {
1485 if (bios_vmode[i].vi_mode == NA)
1487 if (mode == bios_vmode[i].vi_mode) {
1488 *info = bios_vmode[i];
1490 info->vi_buffer_size = info->vi_window_size*info->vi_planes;
1499 * Find a video mode matching the requested parameters.
1500 * Fields filled with 0 are considered "don't care" fields and
1506 vga_query_mode(video_adapter_t *adp, video_info_t *info)
1513 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) {
1514 if (bios_vmode[i].vi_mode == NA)
1517 if ((info->vi_width != 0)
1518 && (info->vi_width != bios_vmode[i].vi_width))
1520 if ((info->vi_height != 0)
1521 && (info->vi_height != bios_vmode[i].vi_height))
1523 if ((info->vi_cwidth != 0)
1524 && (info->vi_cwidth != bios_vmode[i].vi_cwidth))
1526 if ((info->vi_cheight != 0)
1527 && (info->vi_cheight != bios_vmode[i].vi_cheight))
1529 if ((info->vi_depth != 0)
1530 && (info->vi_depth != bios_vmode[i].vi_depth))
1532 if ((info->vi_planes != 0)
1533 && (info->vi_planes != bios_vmode[i].vi_planes))
1535 /* XXX: should check pixel format, memory model */
1536 if ((info->vi_flags != 0)
1537 && (info->vi_flags != bios_vmode[i].vi_flags))
1540 /* verify if this mode is supported on this adapter */
1541 if (vga_get_info(adp, bios_vmode[i].vi_mode, info))
1550 * Change the video mode.
1555 #ifndef VGA_NO_MODE_CHANGE
1558 set_width90(adp_state_t *params)
1561 * Based on code submitted by Kelly Yancey (kbyanc@freedomnet.com)
1562 * and alexv@sui.gda.itesm.mx.
1564 params->regs[5] |= 1; /* toggle 8 pixel wide fonts */
1565 params->regs[10+0x0] = 0x6b;
1566 params->regs[10+0x1] = 0x59;
1567 params->regs[10+0x2] = 0x5a;
1568 params->regs[10+0x3] = 0x8e;
1569 params->regs[10+0x4] = 0x5e;
1570 params->regs[10+0x5] = 0x8a;
1571 params->regs[10+0x13] = 45;
1572 params->regs[35+0x13] = 0;
1574 #endif /* VGA_WIDTH90 */
1575 #endif /* !VGA_NO_MODE_CHANGE */
1578 vga_set_mode(video_adapter_t *adp, int mode)
1580 #ifndef VGA_NO_MODE_CHANGE
1584 prologue(adp, V_ADP_MODECHANGE, ENODEV);
1586 mode = map_gen_mode_num(adp->va_type,
1587 adp->va_flags & V_ADP_COLOR, mode);
1588 if (vga_get_info(adp, mode, &info))
1592 printf("vga_set_mode(): setting mode %d\n", mode);
1595 params.sig = V_STATE_SIG;
1596 bcopy(get_mode_param(mode), params.regs, sizeof(params.regs));
1600 case M_VGA_C90x60: case M_VGA_M90x60:
1601 set_width90(¶ms);
1604 case M_VGA_C80x60: case M_VGA_M80x60:
1605 params.regs[2] = 0x08;
1606 params.regs[19] = 0x47;
1610 case M_VGA_C90x30: case M_VGA_M90x30:
1611 set_width90(¶ms);
1614 case M_VGA_C80x30: case M_VGA_M80x30:
1615 params.regs[19] = 0x4f;
1617 params.regs[9] |= 0xc0;
1618 params.regs[16] = 0x08;
1619 params.regs[17] = 0x3e;
1620 params.regs[26] = 0xea;
1621 params.regs[28] = 0xdf;
1622 params.regs[31] = 0xe7;
1623 params.regs[32] = 0x04;
1627 case M_VGA_C90x43: case M_VGA_M90x43:
1628 set_width90(¶ms);
1631 case M_ENH_C80x43: case M_ENH_B80x43:
1632 params.regs[28] = 87;
1636 case M_VGA_C90x50: case M_VGA_M90x50:
1637 set_width90(¶ms);
1640 case M_VGA_C80x50: case M_VGA_M80x50:
1643 params.regs[19] = 7;
1647 case M_VGA_C90x25: case M_VGA_M90x25:
1648 set_width90(¶ms);
1651 case M_VGA_C40x25: case M_VGA_C80x25:
1653 case M_B40x25: case M_C40x25:
1654 case M_B80x25: case M_C80x25:
1655 case M_ENH_B40x25: case M_ENH_C40x25:
1656 case M_ENH_B80x25: case M_ENH_C80x25:
1657 case M_EGAMONO80x25:
1660 vga_load_state(adp, ¶ms);
1664 /* "unchain" the VGA mode */
1665 params.regs[5-1+0x04] &= 0xf7;
1666 params.regs[5-1+0x04] |= 0x04;
1667 /* turn off doubleword mode */
1668 params.regs[10+0x14] &= 0xbf;
1669 /* turn off word addressing */
1670 params.regs[10+0x17] |= 0x40;
1671 /* set logical screen width */
1672 params.regs[10+0x13] = 80;
1674 params.regs[10+0x11] = 0x2c;
1675 params.regs[10+0x06] = 0x0d;
1676 params.regs[10+0x07] = 0x3e;
1677 params.regs[10+0x10] = 0xea;
1678 params.regs[10+0x11] = 0xac;
1679 params.regs[10+0x12] = 0xdf;
1680 params.regs[10+0x15] = 0xe7;
1681 params.regs[10+0x16] = 0x06;
1682 /* set vertical sync polarity to reflect aspect ratio */
1683 params.regs[9] = 0xe3;
1686 case M_BG320: case M_CG320: case M_BG640:
1687 case M_CG320_D: case M_CG640_E:
1688 case M_CG640x350: case M_ENH_CG640:
1689 case M_BG640x480: case M_CG640x480: case M_VGA_CG320:
1692 vga_load_state(adp, ¶ms);
1699 adp->va_mode = mode;
1700 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */
1701 update_adapter_info(adp, &info);
1703 /* move hardware cursor out of the way */
1704 vidd_set_hw_cursor(adp, -1, -1);
1707 #else /* VGA_NO_MODE_CHANGE */
1709 #endif /* VGA_NO_MODE_CHANGE */
1712 #ifndef VGA_NO_FONT_LOADING
1715 set_font_mode(video_adapter_t *adp, u_char *buf)
1722 /* save register values */
1723 if (adp->va_type == KD_VGA) {
1724 outb(TSIDX, 0x02); buf[0] = inb(TSREG);
1725 outb(TSIDX, 0x04); buf[1] = inb(TSREG);
1726 outb(GDCIDX, 0x04); buf[2] = inb(GDCREG);
1727 outb(GDCIDX, 0x05); buf[3] = inb(GDCREG);
1728 outb(GDCIDX, 0x06); buf[4] = inb(GDCREG);
1729 inb(adp->va_crtc_addr + 6);
1730 outb(ATC, 0x10); buf[5] = inb(ATC + 1);
1731 } else /* if (adp->va_type == KD_EGA) */ {
1733 * EGA cannot be read; copy parameters from the mode parameter
1736 mp = get_mode_param(adp->va_mode);
1737 buf[0] = mp[5 + 0x02 - 1];
1738 buf[1] = mp[5 + 0x04 - 1];
1739 buf[2] = mp[55 + 0x04];
1740 buf[3] = mp[55 + 0x05];
1741 buf[4] = mp[55 + 0x06];
1742 buf[5] = mp[35 + 0x10];
1745 /* setup vga for loading fonts */
1746 inb(adp->va_crtc_addr + 6); /* reset flip-flop */
1747 outb(ATC, 0x10); outb(ATC, buf[5] & ~0x01);
1748 inb(adp->va_crtc_addr + 6); /* reset flip-flop */
1749 outb(ATC, 0x20); /* enable palette */
1751 #ifdef VGA_SLOW_IOACCESS
1752 #ifdef VGA_ALT_SEQACCESS
1753 outb(TSIDX, 0x00); outb(TSREG, 0x01);
1755 outb(TSIDX, 0x02); outb(TSREG, 0x04);
1756 outb(TSIDX, 0x04); outb(TSREG, 0x07);
1757 #ifdef VGA_ALT_SEQACCESS
1758 outb(TSIDX, 0x00); outb(TSREG, 0x03);
1760 outb(GDCIDX, 0x04); outb(GDCREG, 0x02);
1761 outb(GDCIDX, 0x05); outb(GDCREG, 0x00);
1762 outb(GDCIDX, 0x06); outb(GDCREG, 0x04);
1763 #else /* VGA_SLOW_IOACCESS */
1764 #ifdef VGA_ALT_SEQACCESS
1765 outw(TSIDX, 0x0100);
1767 outw(TSIDX, 0x0402);
1768 outw(TSIDX, 0x0704);
1769 #ifdef VGA_ALT_SEQACCESS
1770 outw(TSIDX, 0x0300);
1772 outw(GDCIDX, 0x0204);
1773 outw(GDCIDX, 0x0005);
1774 outw(GDCIDX, 0x0406); /* addr = a0000, 64kb */
1775 #endif /* VGA_SLOW_IOACCESS */
1781 set_normal_mode(video_adapter_t *adp, u_char *buf)
1787 /* setup vga for normal operation mode again */
1788 inb(adp->va_crtc_addr + 6); /* reset flip-flop */
1789 outb(ATC, 0x10); outb(ATC, buf[5]);
1790 inb(adp->va_crtc_addr + 6); /* reset flip-flop */
1791 outb(ATC, 0x20); /* enable palette */
1793 #ifdef VGA_SLOW_IOACCESS
1794 #ifdef VGA_ALT_SEQACCESS
1795 outb(TSIDX, 0x00); outb(TSREG, 0x01);
1797 outb(TSIDX, 0x02); outb(TSREG, buf[0]);
1798 outb(TSIDX, 0x04); outb(TSREG, buf[1]);
1799 #ifdef VGA_ALT_SEQACCESS
1800 outb(TSIDX, 0x00); outb(TSREG, 0x03);
1802 outb(GDCIDX, 0x04); outb(GDCREG, buf[2]);
1803 outb(GDCIDX, 0x05); outb(GDCREG, buf[3]);
1804 if (adp->va_crtc_addr == MONO_CRTC) {
1805 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x08);
1807 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x0c);
1809 #else /* VGA_SLOW_IOACCESS */
1810 #ifdef VGA_ALT_SEQACCESS
1811 outw(TSIDX, 0x0100);
1813 outw(TSIDX, 0x0002 | (buf[0] << 8));
1814 outw(TSIDX, 0x0004 | (buf[1] << 8));
1815 #ifdef VGA_ALT_SEQACCESS
1816 outw(TSIDX, 0x0300);
1818 outw(GDCIDX, 0x0004 | (buf[2] << 8));
1819 outw(GDCIDX, 0x0005 | (buf[3] << 8));
1820 if (adp->va_crtc_addr == MONO_CRTC)
1821 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x08)<<8));
1823 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x0c)<<8));
1824 #endif /* VGA_SLOW_IOACCESS */
1829 #endif /* VGA_NO_FONT_LOADING */
1833 * Read the font data in the requested font page from the video adapter.
1838 vga_save_font(video_adapter_t *adp, int page, int fontsize, int fontwidth,
1839 u_char *data, int ch, int count)
1841 #ifndef VGA_NO_FONT_LOADING
1842 u_char buf[PARAM_BUFSIZE];
1843 vm_offset_t segment;
1845 #ifdef VGA_ALT_SEQACCESS
1850 prologue(adp, V_ADP_FONT, ENODEV);
1852 if (fontsize < 14) {
1855 } else if (fontsize >= 32) {
1857 } else if (fontsize >= 16) {
1865 if (page < 0 || page >= 8 || fontwidth != 8)
1867 segment = FONT_BUF + 0x4000*page;
1871 #ifdef VGA_ALT_SEQACCESS
1872 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */
1874 outb(TSIDX, 0x00); outb(TSREG, 0x01);
1875 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */
1876 outb(TSIDX, 0x01); outb(TSREG, val | 0x20);
1877 outb(TSIDX, 0x00); outb(TSREG, 0x03);
1882 set_font_mode(adp, buf);
1883 if (fontsize == 32) {
1884 bcopy_fromio((uintptr_t)segment + ch*32, data, fontsize*count);
1886 for (c = ch; count > 0; ++c, --count) {
1887 bcopy_fromio((uintptr_t)segment + c*32, data, fontsize);
1891 set_normal_mode(adp, buf);
1893 #ifdef VGA_ALT_SEQACCESS
1894 if (adp->va_type == KD_VGA) {
1896 outb(TSIDX, 0x00); outb(TSREG, 0x01);
1897 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */
1898 outb(TSIDX, 0x00); outb(TSREG, 0x03);
1904 #else /* VGA_NO_FONT_LOADING */
1906 #endif /* VGA_NO_FONT_LOADING */
1911 * Set the font data in the requested font page.
1912 * NOTE: it appears that some recent video adapters do not support
1913 * the font page other than 0... XXX
1918 vga_load_font(video_adapter_t *adp, int page, int fontsize, int fontwidth,
1919 u_char *data, int ch, int count)
1921 #ifndef VGA_NO_FONT_LOADING
1922 u_char buf[PARAM_BUFSIZE];
1923 vm_offset_t segment;
1925 #ifdef VGA_ALT_SEQACCESS
1930 prologue(adp, V_ADP_FONT, ENODEV);
1932 if (fontsize < 14) {
1935 } else if (fontsize >= 32) {
1937 } else if (fontsize >= 16) {
1945 if (page < 0 || page >= 8 || fontwidth != 8)
1947 segment = FONT_BUF + 0x4000*page;
1951 #ifdef VGA_ALT_SEQACCESS
1952 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */
1954 outb(TSIDX, 0x00); outb(TSREG, 0x01);
1955 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */
1956 outb(TSIDX, 0x01); outb(TSREG, val | 0x20);
1957 outb(TSIDX, 0x00); outb(TSREG, 0x03);
1962 set_font_mode(adp, buf);
1963 if (fontsize == 32) {
1964 bcopy_toio(data, (uintptr_t)segment + ch*32, fontsize*count);
1966 for (c = ch; count > 0; ++c, --count) {
1967 bcopy_toio(data, (uintptr_t)segment + c*32, fontsize);
1971 set_normal_mode(adp, buf);
1973 #ifdef VGA_ALT_SEQACCESS
1974 if (adp->va_type == KD_VGA) {
1976 outb(TSIDX, 0x00); outb(TSREG, 0x01);
1977 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */
1978 outb(TSIDX, 0x00); outb(TSREG, 0x03);
1984 #else /* VGA_NO_FONT_LOADING */
1986 #endif /* VGA_NO_FONT_LOADING */
1991 * Activate the requested font page.
1992 * NOTE: it appears that some recent video adapters do not support
1993 * the font page other than 0... XXX
1998 vga_show_font(video_adapter_t *adp, int page)
2000 #ifndef VGA_NO_FONT_LOADING
2001 static u_char cg[] = { 0x00, 0x05, 0x0a, 0x0f, 0x30, 0x35, 0x3a, 0x3f };
2004 prologue(adp, V_ADP_FONT, ENODEV);
2005 if (page < 0 || page >= 8)
2009 outb(TSIDX, 0x03); outb(TSREG, cg[page]);
2013 #else /* VGA_NO_FONT_LOADING */
2015 #endif /* VGA_NO_FONT_LOADING */
2020 * Read DAC values. The values have expressed in 8 bits.
2025 vga_save_palette(video_adapter_t *adp, u_char *palette)
2030 prologue(adp, V_ADP_PALETTE, ENODEV);
2033 * We store 8 bit values in the palette buffer, while the standard
2034 * VGA has 6 bit DAC .
2036 outb(PALRADR, 0x00);
2037 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2;
2038 for (i = 0; i < 256*3; ++i)
2039 palette[i] = inb(PALDATA) << bits;
2040 inb(adp->va_crtc_addr + 6); /* reset flip/flop */
2045 vga_save_palette2(video_adapter_t *adp, int base, int count,
2046 u_char *r, u_char *g, u_char *b)
2051 prologue(adp, V_ADP_PALETTE, ENODEV);
2053 outb(PALRADR, base);
2054 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2;
2055 for (i = 0; i < count; ++i) {
2056 r[i] = inb(PALDATA) << bits;
2057 g[i] = inb(PALDATA) << bits;
2058 b[i] = inb(PALDATA) << bits;
2060 inb(adp->va_crtc_addr + 6); /* reset flip/flop */
2071 vga_load_palette(video_adapter_t *adp, u_char *palette)
2076 prologue(adp, V_ADP_PALETTE, ENODEV);
2078 outb(PIXMASK, 0xff); /* no pixelmask */
2079 outb(PALWADR, 0x00);
2080 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2;
2081 for (i = 0; i < 256*3; ++i)
2082 outb(PALDATA, palette[i] >> bits);
2083 inb(adp->va_crtc_addr + 6); /* reset flip/flop */
2084 outb(ATC, 0x20); /* enable palette */
2089 vga_load_palette2(video_adapter_t *adp, int base, int count,
2090 u_char *r, u_char *g, u_char *b)
2095 prologue(adp, V_ADP_PALETTE, ENODEV);
2097 outb(PIXMASK, 0xff); /* no pixelmask */
2098 outb(PALWADR, base);
2099 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2;
2100 for (i = 0; i < count; ++i) {
2101 outb(PALDATA, r[i] >> bits);
2102 outb(PALDATA, g[i] >> bits);
2103 outb(PALDATA, b[i] >> bits);
2105 inb(adp->va_crtc_addr + 6); /* reset flip/flop */
2106 outb(ATC, 0x20); /* enable palette */
2112 * Change the border color.
2117 vga_set_border(video_adapter_t *adp, int color)
2119 prologue(adp, V_ADP_BORDER, ENODEV);
2121 switch (adp->va_type) {
2124 inb(adp->va_crtc_addr + 6); /* reset flip-flop */
2125 outb(ATC, 0x31); outb(ATC, color & 0xff);
2128 outb(adp->va_crtc_addr + 5, color & 0x0f); /* color select register */
2140 * Read video register values.
2141 * NOTE: this function only reads the standard EGA/VGA registers.
2142 * any extra/extended registers of SVGA adapters are not saved.
2147 vga_save_state(video_adapter_t *adp, void *p, size_t size)
2156 /* return the required buffer size */
2157 prologue(adp, V_ADP_STATESAVE, 0);
2158 return sizeof(adp_state_t);
2160 prologue(adp, V_ADP_STATESAVE, ENODEV);
2161 if (size < sizeof(adp_state_t))
2165 ((adp_state_t *)p)->sig = V_STATE_SIG;
2166 buf = ((adp_state_t *)p)->regs;
2167 bzero(buf, V_MODE_PARAM_SIZE);
2168 crtc_addr = adp->va_crtc_addr;
2172 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */
2173 for (i = 0, j = 5; i < 4; i++) {
2175 buf[j++] = inb(TSREG);
2177 buf[9] = inb(MISC + 10); /* dot-clock */
2178 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */
2180 for (i = 0, j = 10; i < 25; i++) { /* crtc */
2182 buf[j++] = inb(crtc_addr + 1);
2184 for (i = 0, j = 35; i < 20; i++) { /* attribute ctrl */
2185 inb(crtc_addr + 6); /* reset flip-flop */
2187 buf[j++] = inb(ATC + 1);
2189 for (i = 0, j = 55; i < 9; i++) { /* graph data ctrl */
2191 buf[j++] = inb(GDCREG);
2193 inb(crtc_addr + 6); /* reset flip-flop */
2194 outb(ATC, 0x20); /* enable palette */
2199 if (vga_get_info(adp, adp->va_mode, &info) == 0) {
2200 if (info.vi_flags & V_INFO_GRAPHICS) {
2201 buf[0] = info.vi_width/info.vi_cwidth; /* COLS */
2202 buf[1] = info.vi_height/info.vi_cheight - 1; /* ROWS */
2204 buf[0] = info.vi_width; /* COLS */
2205 buf[1] = info.vi_height - 1; /* ROWS */
2207 buf[2] = info.vi_cheight; /* POINTS */
2210 buf[0] = readb(BIOS_PADDRTOVADDR(0x44a)); /* COLS */
2211 buf[1] = readb(BIOS_PADDRTOVADDR(0x484)); /* ROWS */
2212 buf[2] = readb(BIOS_PADDRTOVADDR(0x485)); /* POINTS */
2213 buf[3] = readb(BIOS_PADDRTOVADDR(0x44c));
2214 buf[4] = readb(BIOS_PADDRTOVADDR(0x44d));
2222 * Set video registers at once.
2223 * NOTE: this function only updates the standard EGA/VGA registers.
2224 * any extra/extended registers of SVGA adapters are not changed.
2229 vga_load_state(video_adapter_t *adp, void *p)
2236 prologue(adp, V_ADP_STATELOAD, ENODEV);
2237 if (((adp_state_t *)p)->sig != V_STATE_SIG)
2240 buf = ((adp_state_t *)p)->regs;
2241 crtc_addr = adp->va_crtc_addr;
2244 dump_buffer(buf, V_MODE_PARAM_SIZE);
2249 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */
2250 for (i = 0; i < 4; ++i) { /* program sequencer */
2252 outb(TSREG, buf[i + 5]);
2254 outb(MISC, buf[9]); /* set dot-clock */
2255 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */
2256 outb(crtc_addr, 0x11);
2257 outb(crtc_addr + 1, inb(crtc_addr + 1) & 0x7F);
2258 for (i = 0; i < 25; ++i) { /* program crtc */
2260 outb(crtc_addr + 1, buf[i + 10]);
2262 inb(crtc_addr+6); /* reset flip-flop */
2263 for (i = 0; i < 20; ++i) { /* program attribute ctrl */
2265 outb(ATC, buf[i + 35]);
2267 for (i = 0; i < 9; ++i) { /* program graph data ctrl */
2269 outb(GDCREG, buf[i + 55]);
2271 inb(crtc_addr + 6); /* reset flip-flop */
2272 outb(ATC, 0x20); /* enable palette */
2274 #ifdef notyet /* a temporary workaround for kernel panic, XXX */
2276 if (adp->va_unit == V_ADP_PRIMARY) {
2277 writeb(BIOS_PADDRTOVADDR(0x44a), buf[0]); /* COLS */
2278 writeb(BIOS_PADDRTOVADDR(0x484), buf[1] + rows_offset - 1); /* ROWS */
2279 writeb(BIOS_PADDRTOVADDR(0x485), buf[2]); /* POINTS */
2281 writeb(BIOS_PADDRTOVADDR(0x44c), buf[3]);
2282 writeb(BIOS_PADDRTOVADDR(0x44d), buf[4]);
2285 #endif /* VGA_NO_BIOS */
2294 * Change the origin (window mapping) of the banked frame buffer.
2297 vga_set_origin(video_adapter_t *adp, off_t offset)
2300 * The standard video modes do not require window mapping;
2301 * always return error.
2308 * Read the position of the hardware text cursor.
2313 vga_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
2321 if (adp->va_info.vi_flags & V_INFO_GRAPHICS)
2325 outb(adp->va_crtc_addr, 14);
2326 off = inb(adp->va_crtc_addr + 1);
2327 outb(adp->va_crtc_addr, 15);
2328 off = (off << 8) | inb(adp->va_crtc_addr + 1);
2331 *row = off / adp->va_info.vi_width;
2332 *col = off % adp->va_info.vi_width;
2339 * Move the hardware text cursor. If col and row are both -1,
2340 * the cursor won't be shown.
2345 vga_set_hw_cursor(video_adapter_t *adp, int col, int row)
2353 if ((col == -1) && (row == -1)) {
2356 if (adp->va_info.vi_flags & V_INFO_GRAPHICS)
2358 off = row*adp->va_info.vi_width + col;
2362 outb(adp->va_crtc_addr, 14);
2363 outb(adp->va_crtc_addr + 1, off >> 8);
2364 outb(adp->va_crtc_addr, 15);
2365 outb(adp->va_crtc_addr + 1, off & 0x00ff);
2372 * set_hw_cursor_shape():
2373 * Change the shape of the hardware text cursor. If the height is
2374 * zero or negative, the cursor won't be shown.
2379 vga_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
2380 int celsize, int blink)
2388 switch (adp->va_type) {
2395 /* make the cursor invisible */
2396 outb(adp->va_crtc_addr, 10);
2397 outb(adp->va_crtc_addr + 1, 32);
2398 outb(adp->va_crtc_addr, 11);
2399 outb(adp->va_crtc_addr + 1, 0);
2401 outb(adp->va_crtc_addr, 10);
2402 outb(adp->va_crtc_addr + 1, celsize - base - height);
2403 outb(adp->va_crtc_addr, 11);
2404 outb(adp->va_crtc_addr + 1, celsize - base - 1);
2409 /* make the cursor invisible */
2410 outb(adp->va_crtc_addr, 10);
2411 outb(adp->va_crtc_addr + 1, celsize);
2412 outb(adp->va_crtc_addr, 11);
2413 outb(adp->va_crtc_addr + 1, 0);
2415 outb(adp->va_crtc_addr, 10);
2416 outb(adp->va_crtc_addr + 1, celsize - base - height);
2417 outb(adp->va_crtc_addr, 11);
2418 outb(adp->va_crtc_addr + 1, celsize - base);
2429 * Put the display in power save/power off mode.
2434 vga_blank_display(video_adapter_t *adp, int mode)
2440 switch (adp->va_type) {
2443 case V_DISPLAY_SUSPEND:
2444 case V_DISPLAY_STAND_BY:
2448 outb(TSREG, val | 0x20);
2449 outb(adp->va_crtc_addr, 0x17);
2450 val = inb(adp->va_crtc_addr + 1);
2451 outb(adp->va_crtc_addr + 1, val & ~0x80);
2453 case V_DISPLAY_BLANK:
2457 outb(TSREG, val | 0x20);
2463 outb(TSREG, val & 0xDF);
2464 outb(adp->va_crtc_addr, 0x17);
2465 val = inb(adp->va_crtc_addr + 1);
2466 outb(adp->va_crtc_addr + 1, val | 0x80);
2472 /* no support yet */
2478 case V_DISPLAY_SUSPEND:
2479 case V_DISPLAY_STAND_BY:
2480 case V_DISPLAY_BLANK:
2481 outb(adp->va_crtc_addr + 4, 0x25);
2484 outb(adp->va_crtc_addr + 4, 0x2d);
2492 case V_DISPLAY_SUSPEND:
2493 case V_DISPLAY_STAND_BY:
2494 case V_DISPLAY_BLANK:
2495 outb(adp->va_crtc_addr + 4, 0x21);
2498 outb(adp->va_crtc_addr + 4, 0x29);
2512 * Mmap frame buffer.
2517 vga_mmap_buf(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
2518 int prot, vm_memattr_t *memattr)
2520 if (adp->va_info.vi_flags & V_INFO_LINEAR)
2524 printf("vga_mmap_buf(): window:0x%jx, offset:0x%jx\n",
2525 (uintmax_t)adp->va_info.vi_window, (uintmax_t)offset);
2528 /* XXX: is this correct? */
2529 if (offset > adp->va_window_size - PAGE_SIZE)
2532 *paddr = adp->va_info.vi_window + offset;
2536 #ifndef VGA_NO_MODE_CHANGE
2539 planar_fill(video_adapter_t *adp, int val)
2542 int at; /* position in the frame buffer */
2545 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */
2546 outw(GDCIDX, 0x0003); /* data rotate/function select */
2547 outw(GDCIDX, 0x0f01); /* set/reset enable */
2548 outw(GDCIDX, 0xff08); /* bit mask */
2549 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */
2551 length = adp->va_line_width*adp->va_info.vi_height;
2552 while (length > 0) {
2553 l = imin(length, adp->va_window_size);
2554 vidd_set_win_org(adp, at);
2555 bzero_io(adp->va_window, l);
2559 outw(GDCIDX, 0x0000); /* set/reset */
2560 outw(GDCIDX, 0x0001); /* set/reset enable */
2564 packed_fill(video_adapter_t *adp, int val)
2567 int at; /* position in the frame buffer */
2571 length = adp->va_line_width*adp->va_info.vi_height;
2572 while (length > 0) {
2573 l = imin(length, adp->va_window_size);
2574 vidd_set_win_org(adp, at);
2575 fill_io(val, adp->va_window, l);
2582 direct_fill(video_adapter_t *adp, int val)
2585 int at; /* position in the frame buffer */
2589 length = adp->va_line_width*adp->va_info.vi_height;
2590 while (length > 0) {
2591 l = imin(length, adp->va_window_size);
2592 vidd_set_win_org(adp, at);
2593 switch (adp->va_info.vi_pixel_size) {
2594 case sizeof(u_int16_t):
2595 fillw_io(val, adp->va_window, l/sizeof(u_int16_t));
2600 case sizeof(u_int32_t):
2601 filll_io(val, adp->va_window, l/sizeof(u_int32_t));
2610 vga_clear(video_adapter_t *adp)
2612 switch (adp->va_info.vi_mem_model) {
2613 case V_INFO_MM_TEXT:
2614 /* do nothing? XXX */
2616 case V_INFO_MM_PLANAR:
2617 planar_fill(adp, 0);
2619 case V_INFO_MM_PACKED:
2620 packed_fill(adp, 0);
2622 case V_INFO_MM_DIRECT:
2623 direct_fill(adp, 0);
2631 planar_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2636 int offset; /* offset within window */
2640 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */
2641 outw(GDCIDX, 0x0003); /* data rotate/function select */
2642 outw(GDCIDX, 0x0f01); /* set/reset enable */
2643 outw(GDCIDX, 0xff08); /* bit mask */
2644 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */
2646 banksize = adp->va_window_size;
2649 pos = adp->va_line_width*y + x/8;
2650 if (bank != pos/banksize) {
2651 vidd_set_win_org(adp, pos);
2652 bank = pos/banksize;
2654 offset = pos%banksize;
2655 bx = (x + cx)/8 - x/8;
2657 outw(GDCIDX, ((0xff00 >> (x % 8)) & 0xff00) | 0x08);
2658 writeb(adp->va_window + offset, 0);
2661 if (offset >= banksize) {
2663 ++bank; /* next bank */
2664 vidd_set_win_org(adp, bank*banksize);
2666 outw(GDCIDX, 0xff08); /* bit mask */
2669 l = imin(bx, banksize);
2670 bzero_io(adp->va_window + offset, l);
2673 if (offset >= banksize) {
2675 ++bank; /* next bank */
2676 vidd_set_win_org(adp, bank*banksize);
2680 outw(GDCIDX, (~(0xff00 >> ((x + cx) % 8)) & 0xff00) | 0x08);
2681 writeb(adp->va_window + offset, 0);
2683 if (offset >= banksize) {
2685 ++bank; /* next bank */
2686 vidd_set_win_org(adp, bank*banksize);
2688 outw(GDCIDX, 0xff08); /* bit mask */
2694 outw(GDCIDX, 0xff08); /* bit mask */
2695 outw(GDCIDX, 0x0000); /* set/reset */
2696 outw(GDCIDX, 0x0001); /* set/reset enable */
2700 packed_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2705 int offset; /* offset within window */
2708 banksize = adp->va_window_size;
2710 cx *= adp->va_info.vi_pixel_size;
2712 pos = adp->va_line_width*y + x*adp->va_info.vi_pixel_size;
2713 if (bank != pos/banksize) {
2714 vidd_set_win_org(adp, pos);
2715 bank = pos/banksize;
2717 offset = pos%banksize;
2718 end = imin(offset + cx, banksize);
2719 fill_io(val, adp->va_window + offset,
2720 (end - offset)/adp->va_info.vi_pixel_size);
2721 /* the line may cross the window boundary */
2722 if (offset + cx > banksize) {
2723 ++bank; /* next bank */
2724 vidd_set_win_org(adp, bank*banksize);
2725 end = offset + cx - banksize;
2726 fill_io(val, adp->va_window, end/adp->va_info.vi_pixel_size);
2734 direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2739 int offset; /* offset within window */
2743 * XXX: the function assumes that banksize is a muliple of
2744 * sizeof(u_int16_t).
2746 banksize = adp->va_window_size;
2748 cx *= sizeof(u_int16_t);
2750 pos = adp->va_line_width*y + x*sizeof(u_int16_t);
2751 if (bank != pos/banksize) {
2752 vidd_set_win_org(adp, pos);
2753 bank = pos/banksize;
2755 offset = pos%banksize;
2756 end = imin(offset + cx, banksize);
2757 fillw_io(val, adp->va_window + offset,
2758 (end - offset)/sizeof(u_int16_t));
2759 /* the line may cross the window boundary */
2760 if (offset + cx > banksize) {
2761 ++bank; /* next bank */
2762 vidd_set_win_org(adp, bank*banksize);
2763 end = offset + cx - banksize;
2764 fillw_io(val, adp->va_window, end/sizeof(u_int16_t));
2772 direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2777 int offset; /* offset within window */
2783 b[0] = val & 0x0000ff;
2784 b[1] = (val >> 8) & 0x0000ff;
2785 b[2] = (val >> 16) & 0x0000ff;
2786 banksize = adp->va_window_size;
2790 pos = adp->va_line_width*y + x*3;
2791 if (bank != pos/banksize) {
2792 vidd_set_win_org(adp, pos);
2793 bank = pos/banksize;
2795 offset = pos%banksize;
2796 end = imin(offset + cx, banksize);
2797 for (i = 0, j = offset; j < end; i = (++i)%3, ++j) {
2798 writeb(adp->va_window + j, b[i]);
2800 /* the line may cross the window boundary */
2801 if (offset + cx >= banksize) {
2802 ++bank; /* next bank */
2803 vidd_set_win_org(adp, bank*banksize);
2805 end = offset + cx - banksize;
2806 for (; j < end; i = (++i)%3, ++j) {
2807 writeb(adp->va_window + j, b[i]);
2816 direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2821 int offset; /* offset within window */
2825 * XXX: the function assumes that banksize is a muliple of
2826 * sizeof(u_int32_t).
2828 banksize = adp->va_window_size;
2830 cx *= sizeof(u_int32_t);
2832 pos = adp->va_line_width*y + x*sizeof(u_int32_t);
2833 if (bank != pos/banksize) {
2834 vidd_set_win_org(adp, pos);
2835 bank = pos/banksize;
2837 offset = pos%banksize;
2838 end = imin(offset + cx, banksize);
2839 filll_io(val, adp->va_window + offset,
2840 (end - offset)/sizeof(u_int32_t));
2841 /* the line may cross the window boundary */
2842 if (offset + cx > banksize) {
2843 ++bank; /* next bank */
2844 vidd_set_win_org(adp, bank*banksize);
2845 end = offset + cx - banksize;
2846 filll_io(val, adp->va_window, end/sizeof(u_int32_t));
2854 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2856 switch (adp->va_info.vi_mem_model) {
2857 case V_INFO_MM_TEXT:
2858 /* do nothing? XXX */
2860 case V_INFO_MM_PLANAR:
2861 planar_fill_rect(adp, val, x, y, cx, cy);
2863 case V_INFO_MM_PACKED:
2864 packed_fill_rect(adp, val, x, y, cx, cy);
2866 case V_INFO_MM_DIRECT:
2867 switch (adp->va_info.vi_pixel_size) {
2868 case sizeof(u_int16_t):
2869 direct_fill_rect16(adp, val, x, y, cx, cy);
2872 direct_fill_rect24(adp, val, x, y, cx, cy);
2874 case sizeof(u_int32_t):
2875 direct_fill_rect32(adp, val, x, y, cx, cy);
2884 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2891 vga_bitblt(video_adapter_t *adp,...)
2897 #endif /* !VGA_NO_MODE_CHANGE */
2900 get_palette(video_adapter_t *adp, int base, int count,
2901 u_char *red, u_char *green, u_char *blue, u_char *trans)
2907 if (count < 0 || base < 0 || count > 256 || base > 256 ||
2911 r = malloc(count*3, M_DEVBUF, M_WAITOK);
2914 if (vga_save_palette2(adp, base, count, r, g, b)) {
2918 copyout(r, red, count);
2919 copyout(g, green, count);
2920 copyout(b, blue, count);
2921 if (trans != NULL) {
2923 copyout(r, trans, count);
2931 set_palette(video_adapter_t *adp, int base, int count,
2932 u_char *red, u_char *green, u_char *blue, u_char *trans)
2939 if (count < 0 || base < 0 || count > 256 || base > 256 ||
2943 r = malloc(count*3, M_DEVBUF, M_WAITOK);
2946 err = copyin(red, r, count);
2948 err = copyin(green, g, count);
2950 err = copyin(blue, b, count);
2952 err = vga_load_palette2(adp, base, count, r, g, b);
2955 return (err ? ENODEV : 0);
2959 vga_dev_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg)
2962 case FBIO_GETWINORG: /* get frame buffer window origin */
2966 case FBIO_SETWINORG: /* set frame buffer window origin */
2969 case FBIO_SETDISPSTART: /* set display start address */
2970 return (set_display_start(adp,
2971 ((video_display_start_t *)arg)->x,
2972 ((video_display_start_t *)arg)->y)
2975 case FBIO_SETLINEWIDTH: /* set scan line length in pixel */
2976 return (set_line_length(adp, *(u_int *)arg) ? ENODEV : 0);
2978 case FBIO_GETPALETTE: /* get color palette */
2979 return get_palette(adp, ((video_color_palette_t *)arg)->index,
2980 ((video_color_palette_t *)arg)->count,
2981 ((video_color_palette_t *)arg)->red,
2982 ((video_color_palette_t *)arg)->green,
2983 ((video_color_palette_t *)arg)->blue,
2984 ((video_color_palette_t *)arg)->transparent);
2986 case FBIO_SETPALETTE: /* set color palette */
2987 return set_palette(adp, ((video_color_palette_t *)arg)->index,
2988 ((video_color_palette_t *)arg)->count,
2989 ((video_color_palette_t *)arg)->red,
2990 ((video_color_palette_t *)arg)->green,
2991 ((video_color_palette_t *)arg)->blue,
2992 ((video_color_palette_t *)arg)->transparent);
2994 case FBIOGTYPE: /* get frame buffer type info. */
2995 ((struct fbtype *)arg)->fb_type = fb_type(adp->va_type);
2996 ((struct fbtype *)arg)->fb_height = adp->va_info.vi_height;
2997 ((struct fbtype *)arg)->fb_width = adp->va_info.vi_width;
2998 ((struct fbtype *)arg)->fb_depth = adp->va_info.vi_depth;
2999 if ((adp->va_info.vi_depth <= 1) || (adp->va_info.vi_depth > 8))
3000 ((struct fbtype *)arg)->fb_cmsize = 0;
3002 ((struct fbtype *)arg)->fb_cmsize = 1 << adp->va_info.vi_depth;
3003 ((struct fbtype *)arg)->fb_size = adp->va_buffer_size;
3006 case FBIOGETCMAP: /* get color palette */
3007 return get_palette(adp, ((struct fbcmap *)arg)->index,
3008 ((struct fbcmap *)arg)->count,
3009 ((struct fbcmap *)arg)->red,
3010 ((struct fbcmap *)arg)->green,
3011 ((struct fbcmap *)arg)->blue, NULL);
3013 case FBIOPUTCMAP: /* set color palette */
3014 return set_palette(adp, ((struct fbcmap *)arg)->index,
3015 ((struct fbcmap *)arg)->count,
3016 ((struct fbcmap *)arg)->red,
3017 ((struct fbcmap *)arg)->green,
3018 ((struct fbcmap *)arg)->blue, NULL);
3021 return fb_commonioctl(adp, cmd, arg);
3026 dump_buffer(u_char *buf, size_t len)
3030 for(i = 0; i < len;) {
3031 printf("%02x ", buf[i]);
3032 if ((++i % 16) == 0)
3039 * Print some information about the video adapter and video modes,
3040 * with requested level of details.
3045 vga_diag(video_adapter_t *adp, int level)
3058 printf("vga: RTC equip. code:0x%02x, DCC code:0x%02x\n",
3059 rtcin(RTC_EQUIPMENT), readb(BIOS_PADDRTOVADDR(0x488)));
3060 printf("vga: CRTC:0x%x, video option:0x%02x, ",
3061 readw(BIOS_PADDRTOVADDR(0x463)),
3062 readb(BIOS_PADDRTOVADDR(0x487)));
3063 printf("rows:%d, cols:%d, font height:%d\n",
3064 readb(BIOS_PADDRTOVADDR(0x44a)),
3065 readb(BIOS_PADDRTOVADDR(0x484)) + 1,
3066 readb(BIOS_PADDRTOVADDR(0x485)));
3067 #endif /* VGA_NO_BIOS */
3068 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
3069 printf("vga: param table EGA/VGA:%p", video_mode_ptr);
3070 printf(", CGA/MDA:%p\n", video_mode_ptr2);
3071 printf("vga: rows_offset:%d\n", rows_offset);
3073 #endif /* FB_DEBUG > 1 */
3075 fb_dump_adp_info(VGA_DRIVER_NAME, adp, level);
3078 if (adp->va_flags & V_ADP_MODECHANGE) {
3079 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) {
3080 if (bios_vmode[i].vi_mode == NA)
3082 if (get_mode_param(bios_vmode[i].vi_mode) == NULL)
3084 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &bios_vmode[i], level);
3087 vga_get_info(adp, adp->va_initial_mode, &info); /* shouldn't fail */
3088 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &info, level);
3090 #endif /* FB_DEBUG > 1 */
3092 if ((adp->va_type != KD_EGA) && (adp->va_type != KD_VGA))
3094 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
3095 if (video_mode_ptr == NULL)
3096 printf("vga%d: %s: WARNING: video mode switching is not "
3097 "fully supported on this adapter\n",
3098 adp->va_unit, adp->va_name);
3103 if (adp->va_type == KD_VGA) {
3104 printf("VGA parameters upon power-up\n");
3105 dump_buffer(adpstate.regs, sizeof(adpstate.regs));
3106 printf("VGA parameters in BIOS for mode %d\n", adp->va_initial_mode);
3107 dump_buffer(adpstate2.regs, sizeof(adpstate2.regs));
3110 mp = get_mode_param(adp->va_initial_mode);
3111 if (mp == NULL) /* this shouldn't be happening */
3113 printf("EGA/VGA parameters to be used for mode %d\n", adp->va_initial_mode);
3114 dump_buffer(mp, V_MODE_PARAM_SIZE);