4 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
5 * Copyright (c) 1992-1998 Søren Schmidt
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer as
13 * the first lines of this file unmodified.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. The name of the author may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 * $FreeBSD: src/sys/dev/fb/vga.c,v 1.9.2.1 2001/08/11 02:58:44 yokota Exp $
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/kernel.h>
41 #include <sys/fcntl.h>
42 #include <sys/malloc.h>
44 #include <sys/thread2.h>
46 #include <bus/isa/isareg.h>
48 #include <machine/clock.h>
49 #include <machine/md_var.h>
51 #include <machine/pc/bios.h>
55 #include <vm/vm_param.h>
65 /* machine/pc/bios.h has got too much i386-specific stuff in it */
66 #ifndef BIOS_PADDRTOVADDR
67 #define BIOS_PADDRTOVADDR(x) (((x) - ISA_HOLE_START) + atdevbase)
70 vga_probe_unit(int unit, video_adapter_t *buf, int flags)
76 sw = vid_get_switch(VGA_DRIVER_NAME);
79 error = (*sw->probe)(unit, &adp, NULL, flags);
82 bcopy(adp, buf, sizeof(*buf));
87 vga_attach_unit(int unit, vga_softc_t *sc, int flags)
92 sw = vid_get_switch(VGA_DRIVER_NAME);
96 error = (*sw->probe)(unit, &sc->adp, NULL, flags);
99 return (*sw->init)(unit, sc->adp, flags);
102 /* cdev driver functions */
104 #ifdef FB_INSTALL_CDEV
109 vga_open(cdev_t dev, vga_softc_t *sc, int flag, int mode, struct ucred *cred)
113 if (mode & (O_CREAT | O_APPEND | O_TRUNC))
116 return genfbopen(&sc->gensc, sc->adp, flag, mode, cred);
120 vga_close(cdev_t dev, vga_softc_t *sc, int flag, int mode)
122 return genfbclose(&sc->gensc, sc->adp, flag, mode);
126 vga_read(cdev_t dev, vga_softc_t *sc, struct uio *uio, int flag)
128 return genfbread(&sc->gensc, sc->adp, uio, flag);
132 vga_write(cdev_t dev, vga_softc_t *sc, struct uio *uio, int flag)
134 return genfbread(&sc->gensc, sc->adp, uio, flag);
138 vga_ioctl(cdev_t dev, vga_softc_t *sc, u_long cmd, caddr_t arg, int flag,
141 return genfbioctl(&sc->gensc, sc->adp, cmd, arg, flag, cred);
145 vga_mmap(cdev_t dev, vga_softc_t *sc, vm_offset_t offset, int prot)
147 return genfbmmap(&sc->gensc, sc->adp, offset, prot);
150 #endif /* FB_INSTALL_CDEV */
154 #define probe_done(adp) ((adp)->va_flags & V_ADP_PROBED)
155 #define init_done(adp) ((adp)->va_flags & V_ADP_INITIALIZED)
156 #define config_done(adp) ((adp)->va_flags & V_ADP_REGISTERED)
159 #define V_MODE_MAP_SIZE (M_VGA_CG320 + 1)
160 #define V_MODE_PARAM_SIZE 64
162 /* video adapter state buffer */
165 #define V_STATE_SIG 0x736f6962
166 u_char regs[V_MODE_PARAM_SIZE];
168 typedef struct adp_state adp_state_t;
171 * NOTE: `va_window' should have a virtual address, but is initialized
172 * with a physical address in the following table, as verify_adapter()
173 * will perform address conversion at run-time.
175 static video_adapter_t biosadapter = {
176 0, KD_VGA, VGA_DRIVER_NAME, 0, 0, V_ADP_COLOR, IO_VGA, 32,
177 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE,
178 0, 0, 0, M_VGA_C80x25, M_C80x25, M_VGA_C80x25
181 /* video driver declarations */
182 static int vga_configure(int flags);
183 int (*vga_sub_configure)(int flags);
185 static int vga_nop(void);
187 static int vga_error(void);
188 static vi_probe_t vga_probe;
189 static vi_init_t vga_init;
190 static vi_get_info_t vga_get_info;
191 static vi_query_mode_t vga_query_mode;
192 static vi_set_mode_t vga_set_mode;
193 static vi_save_font_t vga_save_font;
194 static vi_load_font_t vga_load_font;
195 static vi_show_font_t vga_show_font;
196 static vi_save_palette_t vga_save_palette;
197 static vi_load_palette_t vga_load_palette;
198 static vi_set_border_t vga_set_border;
199 static vi_save_state_t vga_save_state;
200 static vi_load_state_t vga_load_state;
201 static vi_set_win_org_t vga_set_origin;
202 static vi_read_hw_cursor_t vga_read_hw_cursor;
203 static vi_set_hw_cursor_t vga_set_hw_cursor;
204 static vi_set_hw_cursor_shape_t vga_set_hw_cursor_shape;
205 static vi_blank_display_t vga_blank_display;
206 static vi_mmap_t vga_mmap_buf;
207 static vi_ioctl_t vga_dev_ioctl;
208 #ifndef VGA_NO_MODE_CHANGE
209 static vi_clear_t vga_clear;
210 static vi_fill_rect_t vga_fill_rect;
211 static vi_bitblt_t vga_bitblt;
212 #else /* VGA_NO_MODE_CHANGE */
213 #define vga_clear (vi_clear_t *)vga_error
214 #define vga_fill_rect (vi_fill_rect_t *)vga_error
215 #define vga_bitblt (vi_bitblt_t *)vga_error
217 static vi_diag_t vga_diag;
219 static video_switch_t vgavidsw = {
236 vga_set_hw_cursor_shape,
248 VIDEO_DRIVER(vga, vgavidsw, vga_configure);
250 /* VGA BIOS standard video modes */
254 static video_info_t bios_vmode[] = {
256 { M_B40x25, V_INFO_COLOR, 40, 25, 8, 8, 2, 1,
257 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
258 { M_C40x25, V_INFO_COLOR, 40, 25, 8, 8, 4, 1,
259 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
260 { M_B80x25, V_INFO_COLOR, 80, 25, 8, 8, 2, 1,
261 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
262 { M_C80x25, V_INFO_COLOR, 80, 25, 8, 8, 4, 1,
263 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
265 { M_ENH_B40x25, V_INFO_COLOR, 40, 25, 8, 14, 2, 1,
266 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
267 { M_ENH_C40x25, V_INFO_COLOR, 40, 25, 8, 14, 4, 1,
268 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
269 { M_ENH_B80x25, V_INFO_COLOR, 80, 25, 8, 14, 2, 1,
270 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
271 { M_ENH_C80x25, V_INFO_COLOR, 80, 25, 8, 14, 4, 1,
272 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
274 { M_VGA_C40x25, V_INFO_COLOR, 40, 25, 8, 16, 4, 1,
275 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
276 { M_VGA_M80x25, 0, 80, 25, 8, 16, 2, 1,
277 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
278 { M_VGA_C80x25, V_INFO_COLOR, 80, 25, 8, 16, 4, 1,
279 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
281 { M_EGAMONO80x25, 0, 80, 25, 8, 14, 2, 1,
282 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
284 { M_ENH_B80x43, 0, 80, 43, 8, 8, 2, 1,
285 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
286 { M_ENH_C80x43, V_INFO_COLOR, 80, 43, 8, 8, 4, 1,
287 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
289 { M_VGA_M80x30, 0, 80, 30, 8, 16, 2, 1,
290 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
291 { M_VGA_C80x30, V_INFO_COLOR, 80, 30, 8, 16, 4, 1,
292 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
293 { M_VGA_M80x50, 0, 80, 50, 8, 8, 2, 1,
294 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
295 { M_VGA_C80x50, V_INFO_COLOR, 80, 50, 8, 8, 4, 1,
296 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
297 { M_VGA_M80x60, 0, 80, 60, 8, 8, 2, 1,
298 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
299 { M_VGA_C80x60, V_INFO_COLOR, 80, 60, 8, 8, 4, 1,
300 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
302 #ifndef VGA_NO_MODE_CHANGE
305 { M_VGA_M90x25, 0, 90, 25, 8, 16, 2, 1,
306 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
307 { M_VGA_C90x25, V_INFO_COLOR, 90, 25, 8, 16, 4, 1,
308 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
309 { M_VGA_M90x30, 0, 90, 30, 8, 16, 2, 1,
310 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
311 { M_VGA_C90x30, V_INFO_COLOR, 90, 30, 8, 16, 4, 1,
312 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
313 { M_VGA_M90x43, 0, 90, 43, 8, 8, 2, 1,
314 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
315 { M_VGA_C90x43, V_INFO_COLOR, 90, 43, 8, 8, 4, 1,
316 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
317 { M_VGA_M90x50, 0, 90, 50, 8, 8, 2, 1,
318 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
319 { M_VGA_C90x50, V_INFO_COLOR, 90, 50, 8, 8, 4, 1,
320 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
321 { M_VGA_M90x60, 0, 90, 60, 8, 8, 2, 1,
322 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
323 { M_VGA_C90x60, V_INFO_COLOR, 90, 60, 8, 8, 4, 1,
324 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
325 #endif /* VGA_WIDTH90 */
328 { M_BG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1,
329 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA },
330 { M_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1,
331 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA },
332 { M_BG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 1, 1,
333 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA },
335 { M_CG320_D, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 4, 4,
336 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0,
338 { M_CG640_E, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 4, 4,
339 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
341 { M_EGAMONOAPA, V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4,
342 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, 64*1024, 0, 0 ,
344 { M_ENHMONOAPA2,V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4,
345 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
347 { M_CG640x350, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 2, 2,
348 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
350 { M_ENH_CG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4,
351 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
354 { M_BG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4,
355 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
357 { M_CG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4,
358 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
360 { M_VGA_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 8, 1,
361 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0,
362 V_INFO_MM_PACKED, 1 },
363 { M_VGA_MODEX, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 240, 8, 8, 8, 4,
364 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0,
366 #endif /* VGA_NO_MODE_CHANGE */
371 static int vga_init_done = FALSE;
372 #ifndef VGA_NO_MODE_CHANGE
373 static u_char *video_mode_ptr = NULL;
375 static u_char *mode_map[V_MODE_MAP_SIZE];
376 static adp_state_t adpstate;
377 static adp_state_t adpstate2;
378 static int rows_offset = 1;
380 /* local macros and functions */
381 #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff))
383 #ifndef VGA_NO_MODE_CHANGE
384 static void map_mode_table(u_char **, u_char *);
385 static int map_mode_num(int);
386 static int map_bios_mode_num(int);
388 static u_char *get_mode_param(int);
389 static int verify_adapter(video_adapter_t *);
390 static void update_adapter_info(video_adapter_t *, video_info_t *);
391 static int probe_adapters(void);
392 static int set_line_length(video_adapter_t *, int);
393 static int set_display_start(video_adapter_t *, int, int);
395 #ifndef VGA_NO_MODE_CHANGE
397 static void set_width90(adp_state_t *);
399 #endif /* !VGA_NO_MODE_CHANGE */
401 #ifndef VGA_NO_FONT_LOADING
402 #define PARAM_BUFSIZE 6
403 static void set_font_mode(video_adapter_t *, u_char *);
404 static void set_normal_mode(video_adapter_t *, u_char *);
407 #ifndef VGA_NO_MODE_CHANGE
408 static void filll_io(int, vm_offset_t, size_t);
409 static void planar_fill(video_adapter_t *, int);
410 static void packed_fill(video_adapter_t *, int);
411 static void direct_fill(video_adapter_t *, int);
413 static void planar_fill_rect(video_adapter_t *, int, int, int, int, int);
414 static void packed_fill_rect(video_adapter_t *, int, int, int, int, int);
415 static void direct_fill_rect16(video_adapter_t *, int, int, int, int, int);
416 static void direct_fill_rect24(video_adapter_t *, int, int, int, int, int);
417 static void direct_fill_rect32(video_adapter_t *, int, int, int, int, int);
419 #endif /* !VGA_NO_MODE_CHANGE */
421 #define ISMAPPED(pa, width) \
422 (((pa) <= (u_long)0x1000 - (width)) \
423 || ((pa) >= ISA_HOLE_START && (pa) <= 0x100000 - (width)))
425 #define prologue(adp, flag, err) \
426 if (!vga_init_done || !((adp)->va_flags & (flag))) \
429 /* a backdoor for the console driver */
431 vga_configure(int flags)
434 if (probe_done(&biosadapter)) {
435 biosadapter.va_flags |= V_ADP_INITIALIZED;
436 if (!config_done(&biosadapter) && !(vid_register(&biosadapter) < 0))
437 biosadapter.va_flags |= V_ADP_REGISTERED;
439 if (vga_sub_configure != NULL)
440 (*vga_sub_configure)(flags);
445 /* local subroutines */
447 #ifndef VGA_NO_MODE_CHANGE
448 /* construct the mode parameter map (accept 40x25, 80x25 and 80x30 modes) */
450 map_mode_table(u_char *map[], u_char *table)
454 for(i = 0; i < V_MODE_MAP_SIZE; ++i) {
455 map[i] = table + i*V_MODE_PARAM_SIZE;
457 if ((map[i][0] == 40 && map[i][1] == 24) ||
458 (map[i][0] == 80 && (map[i][1] == 24 || map[i][1] == 29)))
464 #endif /* !VGA_NO_MODE_CHANGE */
466 #ifndef VGA_NO_MODE_CHANGE
467 /* map the non-standard video mode to a known mode number */
469 map_mode_num(int mode)
475 { M_ENH_B80x43, M_ENH_B80x25 },
476 { M_ENH_C80x43, M_ENH_C80x25 },
477 { M_VGA_M80x30, M_VGA_M80x25 },
478 { M_VGA_C80x30, M_VGA_C80x25 },
479 { M_VGA_M80x50, M_VGA_M80x25 },
480 { M_VGA_C80x50, M_VGA_C80x25 },
481 { M_VGA_M80x60, M_VGA_M80x25 },
482 { M_VGA_C80x60, M_VGA_C80x25 },
484 { M_VGA_M90x25, M_VGA_M80x25 },
485 { M_VGA_C90x25, M_VGA_C80x25 },
486 { M_VGA_M90x30, M_VGA_M80x25 },
487 { M_VGA_C90x30, M_VGA_C80x25 },
488 { M_VGA_M90x43, M_ENH_B80x25 },
489 { M_VGA_C90x43, M_ENH_C80x25 },
490 { M_VGA_M90x50, M_VGA_M80x25 },
491 { M_VGA_C90x50, M_VGA_C80x25 },
492 { M_VGA_M90x60, M_VGA_M80x25 },
493 { M_VGA_C90x60, M_VGA_C80x25 },
495 { M_VGA_MODEX, M_VGA_CG320 },
499 for (i = 0; i < NELEM(mode_map); ++i) {
500 if (mode_map[i].from == mode)
501 return mode_map[i].to;
506 /* turn the BIOS video number into our video mode number */
508 map_bios_mode_num(int bios_mode)
510 static int vga_modes[20] = {
511 M_VGA_C40x25, M_VGA_C40x25, /* 0, 1 */
512 M_VGA_C80x25, M_VGA_C80x25, /* 2, 3 */
515 M_VGA_M80x25, /* 7 */
521 M_BG640x480, M_CG640x480,
525 if (bios_mode < NELEM(vga_modes))
526 return vga_modes[bios_mode];
530 #endif /* !VGA_NO_MODE_CHANGE */
532 /* look up a parameter table entry */
534 get_mode_param(int mode)
536 #ifndef VGA_NO_MODE_CHANGE
537 if (mode >= V_MODE_MAP_SIZE)
538 mode = map_mode_num(mode);
540 if ((mode >= 0) && (mode < V_MODE_MAP_SIZE))
541 return mode_map[mode];
547 verify_adapter(video_adapter_t *adp)
551 #ifndef VGA_NO_MODE_CHANGE
555 buf = BIOS_PADDRTOVADDR(adp->va_window);
558 if (readw(buf) != 0xA55A)
566 adp->va_flags |= V_ADP_STATELOAD | V_ADP_STATESAVE | V_ADP_PALETTE |
569 #ifndef VGA_NO_MODE_CHANGE
570 /* get the BIOS video mode pointer */
571 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8);
572 p = BIOS_SADDRTOLADDR(p);
573 if (ISMAPPED(p, sizeof(u_int32_t))) {
574 p = *(u_int32_t *)BIOS_PADDRTOVADDR(p);
575 p = BIOS_SADDRTOLADDR(p);
576 if (ISMAPPED(p, V_MODE_PARAM_SIZE))
577 video_mode_ptr = (u_char *)BIOS_PADDRTOVADDR(p);
585 update_adapter_info(video_adapter_t *adp, video_info_t *info)
587 adp->va_flags |= V_ADP_COLOR;
588 adp->va_window = BIOS_PADDRTOVADDR(info->vi_window);
589 adp->va_window_size = info->vi_window_size;
590 adp->va_window_gran = info->vi_window_gran;
591 adp->va_window_orig = 0;
593 adp->va_buffer = info->vi_buffer;
594 adp->va_buffer_size = info->vi_buffer_size;
595 if (info->vi_mem_model == V_INFO_MM_VGAX) {
596 adp->va_line_width = info->vi_width/2;
597 } else if (info->vi_flags & V_INFO_GRAPHICS) {
598 switch (info->vi_depth/info->vi_planes) {
600 adp->va_line_width = info->vi_width/8;
603 adp->va_line_width = info->vi_width/4;
606 adp->va_line_width = info->vi_width/2;
609 default: /* shouldn't happen */
610 adp->va_line_width = info->vi_width;
614 adp->va_line_width = info->vi_width;
616 adp->va_disp_start.x = 0;
617 adp->va_disp_start.y = 0;
618 bcopy(info, &adp->va_info, sizeof(adp->va_info));
621 /* probe video adapters and return the number of detected adapters */
625 video_adapter_t *adp;
627 #ifndef VGA_NO_MODE_CHANGE
632 /* do this test only once */
635 vga_init_done = TRUE;
637 if (verify_adapter(&biosadapter) != 0)
640 biosadapter.va_flags |= V_ADP_PROBED;
641 #ifndef VGA_NO_MODE_CHANGE
642 biosadapter.va_initial_bios_mode = readb(BIOS_PADDRTOVADDR(0x449));
643 biosadapter.va_mode = biosadapter.va_initial_mode =
644 map_bios_mode_num(biosadapter.va_initial_bios_mode);
648 * Ensure a zero start address. This is mainly to recover after
649 * switching from pcvt using userconfig(). The registers are w/o
650 * for old hardware so it's too hard to relocate the active screen
652 * This must be done before vga_save_state() for VGA.
659 /* the video mode parameter table in VGA BIOS */
660 /* NOTE: there can be only one VGA recognized by the video BIOS.
663 bzero(mode_map, sizeof(mode_map));
664 vga_save_state(adp, &adpstate, sizeof(adpstate));
665 for(i = 0; i < 16; i++)
666 adp->va_palette_regs[i] = adpstate.regs[35 + i];
667 #ifdef VGA_NO_MODE_CHANGE
668 mode_map[adp->va_initial_mode] = adpstate.regs;
670 #else /* !VGA_NO_MODE_CHANGE */
671 if (video_mode_ptr == NULL) {
672 mode_map[adp->va_initial_mode] = adpstate.regs;
675 /* discard modes that we are not familiar with */
676 map_mode_table(mode_map, video_mode_ptr);
677 mp = get_mode_param(adp->va_initial_mode);
678 #ifndef VGA_KEEP_POWERON_MODE
680 bcopy(mp, adpstate2.regs, sizeof(adpstate2.regs));
681 rows_offset = adpstate.regs[1] + 1 - mp[1];
685 mode_map[adp->va_initial_mode] = adpstate.regs;
689 #endif /* VGA_NO_MODE_CHANGE */
691 #ifndef VGA_NO_MODE_CHANGE
692 adp->va_flags |= V_ADP_MODECHANGE;
694 #ifndef VGA_NO_FONT_LOADING
695 adp->va_flags |= V_ADP_FONT;
698 /* XXX remove conflicting modes */
699 for (i = 0; i < M_VGA_CG320; i++) {
700 if (vga_get_info(&biosadapter, i, &info))
702 if ((info.vi_flags & V_INFO_COLOR) != V_ADP_COLOR)
707 vga_get_info(&biosadapter, biosadapter.va_initial_mode, &info);
708 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */
709 update_adapter_info(&biosadapter, &info);
712 * XXX: we should verify the following values for the primary adapter...
713 * crtc I/O port address: *(u_int16_t *)BIOS_PADDRTOVADDR(0x463);
714 * color/mono display: (*(u_int8_t *)BIOS_PADDRTOVADDR(0x487) & 0x02)
716 * columns: *(u_int8_t *)BIOS_PADDRTOVADDR(0x44a);
717 * rows: *(u_int8_t *)BIOS_PADDRTOVADDR(0x484);
718 * font size: *(u_int8_t *)BIOS_PADDRTOVADDR(0x485);
719 * buffer size: *(u_int16_t *)BIOS_PADDRTOVADDR(0x44c);
725 /* set the scan line length in pixel */
727 set_line_length(video_adapter_t *adp, int pixel)
730 int ppw; /* pixels per word */
731 int bpl; /* bytes per line */
734 mp = get_mode_param(adp->va_mode);
738 switch (adp->va_info.vi_mem_model) {
739 case V_INFO_MM_PLANAR:
740 ppw = 16/(adp->va_info.vi_depth/adp->va_info.vi_planes);
741 count = (pixel + ppw - 1)/ppw/2;
742 bpl = ((pixel + ppw - 1)/ppw/2)*4;
744 case V_INFO_MM_PACKED:
745 count = (pixel + 7)/8;
746 bpl = ((pixel + 7)/8)*8;
749 count = (pixel + 7)/8; /* columns */
750 bpl = (pixel + 7)/8; /* columns */
756 if (mp[10 + 0x17] & 0x40) /* CRTC mode control reg */
757 count *= 2; /* byte mode */
760 adp->va_line_width = bpl;
766 set_display_start(video_adapter_t *adp, int x, int y)
768 int off; /* byte offset (graphics mode)/word offset (text mode) */
769 int poff; /* pixel offset */
770 int roff; /* row offset */
771 int ppb; /* pixels per byte */
773 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) {
774 ppb = 8/(adp->va_info.vi_depth/adp->va_info.vi_planes);
775 off = y*adp->va_line_width + x/ppb;
784 off = y/adp->va_info.vi_cheight*adp->va_line_width + x/ppb;
785 roff = y%adp->va_info.vi_cheight;
786 /* FIXME: is this correct? XXX */
794 outb(CRTC, 0xc); /* high */
795 outb(CRTC + 1, off >> 8);
796 outb(CRTC, 0xd); /* low */
797 outb(CRTC + 1, off & 0xff);
799 /* horizontal pel pan */
801 outb(ATC, 0x13 | 0x20);
806 /* preset raw scan */
808 outb(CRTC + 1, roff);
810 adp->va_disp_start.x = x;
811 adp->va_disp_start.y = y;
815 #ifndef VGA_NO_MODE_CHANGE
816 #if defined(__i386__) || defined(__x86_64__) /* XXX */
818 fill(int val, void *d, size_t size)
825 #endif /* __i386__ || __x86_64__ */
828 filll_io(int val, vm_offset_t d, size_t size)
832 d += sizeof(u_int32_t);
835 #endif /* !VGA_NO_MODE_CHANGE */
854 vga_probe(int unit, video_adapter_t **adpp, void *arg, int flags)
860 *adpp = &biosadapter;
866 vga_init(int unit, video_adapter_t *adp, int flags)
868 if ((unit != 0) || (adp == NULL) || !probe_done(adp))
871 if (!init_done(adp)) {
872 /* nothing to do really... */
873 adp->va_flags |= V_ADP_INITIALIZED;
876 if (!config_done(adp)) {
877 if (vid_register(adp) < 0)
879 adp->va_flags |= V_ADP_REGISTERED;
881 if (vga_sub_configure != NULL)
882 (*vga_sub_configure)(0);
889 * Return the video_info structure of the requested video mode.
892 vga_get_info(video_adapter_t *adp, int mode, video_info_t *info)
899 #ifndef VGA_NO_MODE_CHANGE
900 if (adp->va_flags & V_ADP_MODECHANGE) {
902 * If the parameter table entry for this mode is not found,
903 * the mode is not supported...
905 if (get_mode_param(mode) == NULL)
908 #endif /* VGA_NO_MODE_CHANGE */
911 * Even if we don't support video mode switching on this adapter,
912 * the information on the initial (thus current) video mode
913 * should be made available.
915 if (mode != adp->va_initial_mode)
919 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) {
920 if (bios_vmode[i].vi_mode == NA)
922 if (mode == bios_vmode[i].vi_mode) {
923 *info = bios_vmode[i];
925 info->vi_buffer_size = info->vi_window_size*info->vi_planes;
934 * Find a video mode matching the requested parameters.
935 * Fields filled with 0 are considered "don't care" fields and
939 vga_query_mode(video_adapter_t *adp, video_info_t *info)
946 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) {
947 if (bios_vmode[i].vi_mode == NA)
950 if ((info->vi_width != 0)
951 && (info->vi_width != bios_vmode[i].vi_width))
953 if ((info->vi_height != 0)
954 && (info->vi_height != bios_vmode[i].vi_height))
956 if ((info->vi_cwidth != 0)
957 && (info->vi_cwidth != bios_vmode[i].vi_cwidth))
959 if ((info->vi_cheight != 0)
960 && (info->vi_cheight != bios_vmode[i].vi_cheight))
962 if ((info->vi_depth != 0)
963 && (info->vi_depth != bios_vmode[i].vi_depth))
965 if ((info->vi_planes != 0)
966 && (info->vi_planes != bios_vmode[i].vi_planes))
968 /* XXX: should check pixel format, memory model */
969 if ((info->vi_flags != 0)
970 && (info->vi_flags != bios_vmode[i].vi_flags))
973 /* verify if this mode is supported on this adapter */
974 if (vga_get_info(adp, bios_vmode[i].vi_mode, info))
983 * Change the video mode.
986 #ifndef VGA_NO_MODE_CHANGE
989 set_width90(adp_state_t *params)
992 * Based on code submitted by Kelly Yancey (kbyanc@freedomnet.com)
993 * and alexv@sui.gda.itesm.mx.
995 params->regs[5] |= 1; /* toggle 8 pixel wide fonts */
996 params->regs[10+0x0] = 0x6b;
997 params->regs[10+0x1] = 0x59;
998 params->regs[10+0x2] = 0x5a;
999 params->regs[10+0x3] = 0x8e;
1000 params->regs[10+0x4] = 0x5e;
1001 params->regs[10+0x5] = 0x8a;
1002 params->regs[10+0x13] = 45;
1003 params->regs[35+0x13] = 0;
1005 #endif /* VGA_WIDTH90 */
1006 #endif /* !VGA_NO_MODE_CHANGE */
1009 vga_set_mode(video_adapter_t *adp, int mode)
1011 #ifndef VGA_NO_MODE_CHANGE
1015 prologue(adp, V_ADP_MODECHANGE, ENODEV);
1017 if (vga_get_info(adp, mode, &info))
1020 lwkt_gettoken(&tty_token);
1023 kprintf("vga_set_mode(): setting mode %d\n", mode);
1026 params.sig = V_STATE_SIG;
1027 bcopy(get_mode_param(mode), params.regs, sizeof(params.regs));
1031 case M_VGA_C90x60: case M_VGA_M90x60:
1032 set_width90(¶ms);
1035 case M_VGA_C80x60: case M_VGA_M80x60:
1036 params.regs[2] = 0x08;
1037 params.regs[19] = 0x47;
1041 case M_VGA_C90x30: case M_VGA_M90x30:
1042 set_width90(¶ms);
1045 case M_VGA_C80x30: case M_VGA_M80x30:
1046 params.regs[19] = 0x4f;
1048 params.regs[9] |= 0xc0;
1049 params.regs[16] = 0x08;
1050 params.regs[17] = 0x3e;
1051 params.regs[26] = 0xea;
1052 params.regs[28] = 0xdf;
1053 params.regs[31] = 0xe7;
1054 params.regs[32] = 0x04;
1058 case M_VGA_C90x43: case M_VGA_M90x43:
1059 set_width90(¶ms);
1062 case M_ENH_C80x43: case M_ENH_B80x43:
1063 params.regs[28] = 87;
1067 case M_VGA_C90x50: case M_VGA_M90x50:
1068 set_width90(¶ms);
1071 case M_VGA_C80x50: case M_VGA_M80x50:
1074 params.regs[19] = 7;
1078 case M_VGA_C90x25: case M_VGA_M90x25:
1079 set_width90(¶ms);
1082 case M_VGA_C40x25: case M_VGA_C80x25:
1084 case M_B40x25: case M_C40x25:
1085 case M_B80x25: case M_C80x25:
1086 case M_ENH_B40x25: case M_ENH_C40x25:
1087 case M_ENH_B80x25: case M_ENH_C80x25:
1088 case M_EGAMONO80x25:
1091 vga_load_state(adp, ¶ms);
1095 /* "unchain" the VGA mode */
1096 params.regs[5-1+0x04] &= 0xf7;
1097 params.regs[5-1+0x04] |= 0x04;
1098 /* turn off doubleword mode */
1099 params.regs[10+0x14] &= 0xbf;
1100 /* turn off word addressing */
1101 params.regs[10+0x17] |= 0x40;
1102 /* set logical screen width */
1103 params.regs[10+0x13] = 80;
1105 params.regs[10+0x11] = 0x2c;
1106 params.regs[10+0x06] = 0x0d;
1107 params.regs[10+0x07] = 0x3e;
1108 params.regs[10+0x10] = 0xea;
1109 params.regs[10+0x11] = 0xac;
1110 params.regs[10+0x12] = 0xdf;
1111 params.regs[10+0x15] = 0xe7;
1112 params.regs[10+0x16] = 0x06;
1113 /* set vertical sync polarity to reflect aspect ratio */
1114 params.regs[9] = 0xe3;
1117 case M_BG320: case M_CG320: case M_BG640:
1118 case M_CG320_D: case M_CG640_E:
1119 case M_CG640x350: case M_ENH_CG640:
1120 case M_BG640x480: case M_CG640x480: case M_VGA_CG320:
1123 vga_load_state(adp, ¶ms);
1127 lwkt_reltoken(&tty_token);
1131 adp->va_mode = mode;
1132 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */
1133 update_adapter_info(adp, &info);
1135 /* move hardware cursor out of the way */
1136 (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1);
1138 lwkt_reltoken(&tty_token);
1140 #else /* VGA_NO_MODE_CHANGE */
1141 lwkt_reltoken(&tty_token);
1143 #endif /* VGA_NO_MODE_CHANGE */
1146 #ifndef VGA_NO_FONT_LOADING
1149 set_font_mode(video_adapter_t *adp, u_char *buf)
1153 /* save register values */
1154 outb(TSIDX, 0x02); buf[0] = inb(TSREG);
1155 outb(TSIDX, 0x04); buf[1] = inb(TSREG);
1156 outb(GDCIDX, 0x04); buf[2] = inb(GDCREG);
1157 outb(GDCIDX, 0x05); buf[3] = inb(GDCREG);
1158 outb(GDCIDX, 0x06); buf[4] = inb(GDCREG);
1160 outb(ATC, 0x10); buf[5] = inb(ATC + 1);
1162 /* setup vga for loading fonts */
1163 inb(CRTC + 6); /* reset flip-flop */
1164 outb(ATC, 0x10); outb(ATC, buf[5] & ~0x01);
1165 inb(CRTC + 6); /* reset flip-flop */
1166 outb(ATC, 0x20); /* enable palette */
1167 outw(TSIDX, 0x0402);
1168 outw(TSIDX, 0x0704);
1169 outw(GDCIDX, 0x0204);
1170 outw(GDCIDX, 0x0005);
1171 outw(GDCIDX, 0x0406); /* addr = a0000, 64kb */
1177 set_normal_mode(video_adapter_t *adp, u_char *buf)
1181 /* setup vga for normal operation mode again */
1182 inb(CRTC + 6); /* reset flip-flop */
1183 outb(ATC, 0x10); outb(ATC, buf[5]);
1184 inb(CRTC + 6); /* reset flip-flop */
1185 outb(ATC, 0x20); /* enable palette */
1186 outw(TSIDX, 0x0002 | (buf[0] << 8));
1187 outw(TSIDX, 0x0004 | (buf[1] << 8));
1188 outw(GDCIDX, 0x0004 | (buf[2] << 8));
1189 outw(GDCIDX, 0x0005 | (buf[3] << 8));
1190 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x0c)<<8));
1195 #endif /* VGA_NO_FONT_LOADING */
1199 * Read the font data in the requested font page from the video adapter.
1202 vga_save_font(video_adapter_t *adp, int page, int fontsize, u_char *data,
1205 #ifndef VGA_NO_FONT_LOADING
1206 u_char buf[PARAM_BUFSIZE];
1207 vm_offset_t segment;
1210 prologue(adp, V_ADP_FONT, ENODEV);
1212 if (fontsize < 14) {
1215 } else if (fontsize >= 32) {
1217 } else if (fontsize >= 16) {
1225 if (page < 0 || page >= 8)
1227 segment = FONT_BUF + 0x4000*page;
1231 set_font_mode(adp, buf);
1232 if (fontsize == 32) {
1233 bcopy_fromio((uintptr_t)segment + ch*32, data, fontsize*count);
1235 for (c = ch; count > 0; ++c, --count) {
1236 bcopy_fromio((uintptr_t)segment + c*32, data, fontsize);
1240 set_normal_mode(adp, buf);
1243 #else /* VGA_NO_FONT_LOADING */
1245 #endif /* VGA_NO_FONT_LOADING */
1250 * Set the font data in the requested font page.
1251 * NOTE: it appears that some recent video adapters do not support
1252 * the font page other than 0... XXX
1255 vga_load_font(video_adapter_t *adp, int page, int fontsize, u_char *data,
1258 #ifndef VGA_NO_FONT_LOADING
1259 u_char buf[PARAM_BUFSIZE];
1260 vm_offset_t segment;
1263 prologue(adp, V_ADP_FONT, ENODEV);
1265 if (fontsize < 14) {
1268 } else if (fontsize >= 32) {
1270 } else if (fontsize >= 16) {
1278 if (page < 0 || page >= 8)
1280 segment = FONT_BUF + 0x4000*page;
1284 set_font_mode(adp, buf);
1285 if (fontsize == 32) {
1286 bcopy_toio(data, (uintptr_t)segment + ch*32, fontsize*count);
1288 for (c = ch; count > 0; ++c, --count) {
1289 bcopy_toio(data, (uintptr_t)segment + c*32, fontsize);
1293 set_normal_mode(adp, buf);
1296 #else /* VGA_NO_FONT_LOADING */
1298 #endif /* VGA_NO_FONT_LOADING */
1303 * Activate the requested font page.
1304 * NOTE: it appears that some recent video adapters do not support
1305 * the font page other than 0... XXX
1308 vga_show_font(video_adapter_t *adp, int page)
1310 #ifndef VGA_NO_FONT_LOADING
1311 static u_char cg[] = { 0x00, 0x05, 0x0a, 0x0f, 0x30, 0x35, 0x3a, 0x3f };
1313 prologue(adp, V_ADP_FONT, ENODEV);
1314 if (page < 0 || page >= 8)
1318 outb(TSIDX, 0x03); outb(TSREG, cg[page]);
1322 #else /* VGA_NO_FONT_LOADING */
1324 #endif /* VGA_NO_FONT_LOADING */
1329 * Read DAC values. The values have expressed in 8 bits.
1334 vga_save_palette(video_adapter_t *adp, u_char *palette)
1338 prologue(adp, V_ADP_PALETTE, ENODEV);
1341 * We store 8 bit values in the palette buffer, while the standard
1342 * VGA has 6 bit DAC .
1344 outb(PALRADR, 0x00);
1345 for (i = 0; i < 256*3; ++i)
1346 palette[i] = inb(PALDATA) << 2;
1347 inb(CRTC + 6); /* reset flip/flop */
1352 vga_save_palette2(video_adapter_t *adp, int base, int count,
1353 u_char *r, u_char *g, u_char *b)
1357 prologue(adp, V_ADP_PALETTE, ENODEV);
1359 outb(PALRADR, base);
1360 for (i = 0; i < count; ++i) {
1361 r[i] = inb(PALDATA) << 2;
1362 g[i] = inb(PALDATA) << 2;
1363 b[i] = inb(PALDATA) << 2;
1365 inb(CRTC + 6); /* reset flip/flop */
1376 vga_load_palette(video_adapter_t *adp, const u_char *palette)
1380 prologue(adp, V_ADP_PALETTE, ENODEV);
1382 outb(PIXMASK, 0xff); /* no pixelmask */
1383 outb(PALWADR, 0x00);
1384 for (i = 0; i < 256*3; ++i)
1385 outb(PALDATA, palette[i] >> 2);
1386 inb(CRTC + 6); /* reset flip/flop */
1387 outb(ATC, 0x20); /* enable palette */
1392 vga_load_palette2(video_adapter_t *adp, int base, int count,
1393 u_char *r, u_char *g, u_char *b)
1397 prologue(adp, V_ADP_PALETTE, ENODEV);
1399 outb(PIXMASK, 0xff); /* no pixelmask */
1400 outb(PALWADR, base);
1401 for (i = 0; i < count; ++i) {
1402 outb(PALDATA, r[i] >> 2);
1403 outb(PALDATA, g[i] >> 2);
1404 outb(PALDATA, b[i] >> 2);
1406 inb(CRTC + 6); /* reset flip/flop */
1407 outb(ATC, 0x20); /* enable palette */
1413 * Change the border color.
1416 vga_set_border(video_adapter_t *adp, int color)
1418 prologue(adp, V_ADP_BORDER, ENODEV);
1420 inb(CRTC + 6); /* reset flip-flop */
1421 outb(ATC, 0x31); outb(ATC, color & 0xff);
1428 * Read video register values.
1429 * NOTE: this function only reads the standard VGA registers.
1430 * any extra/extended registers of SVGA adapters are not saved.
1433 vga_save_state(video_adapter_t *adp, void *p, size_t size)
1441 /* return the required buffer size */
1442 prologue(adp, V_ADP_STATESAVE, 0);
1443 return sizeof(adp_state_t);
1445 prologue(adp, V_ADP_STATESAVE, ENODEV);
1446 if (size < sizeof(adp_state_t))
1449 ((adp_state_t *)p)->sig = V_STATE_SIG;
1450 buf = ((adp_state_t *)p)->regs;
1451 bzero(buf, V_MODE_PARAM_SIZE);
1456 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */
1457 for (i = 0, j = 5; i < 4; i++) {
1459 buf[j++] = inb(TSREG);
1461 buf[9] = inb(MISC + 10); /* dot-clock */
1462 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */
1464 for (i = 0, j = 10; i < 25; i++) { /* crtc */
1466 buf[j++] = inb(crtc_addr + 1);
1468 for (i = 0, j = 35; i < 20; i++) { /* attribute ctrl */
1469 inb(crtc_addr + 6); /* reset flip-flop */
1471 buf[j++] = inb(ATC + 1);
1473 for (i = 0, j = 55; i < 9; i++) { /* graph data ctrl */
1475 buf[j++] = inb(GDCREG);
1477 inb(crtc_addr + 6); /* reset flip-flop */
1478 outb(ATC, 0x20); /* enable palette */
1483 if (vga_get_info(adp, adp->va_mode, &info) == 0) {
1484 if (info.vi_flags & V_INFO_GRAPHICS) {
1485 buf[0] = info.vi_width/info.vi_cwidth; /* COLS */
1486 buf[1] = info.vi_height/info.vi_cheight - 1; /* ROWS */
1488 buf[0] = info.vi_width; /* COLS */
1489 buf[1] = info.vi_height - 1; /* ROWS */
1491 buf[2] = info.vi_cheight; /* POINTS */
1493 /* XXX: shouldn't be happening... */
1494 kprintf("vga%d: %s: failed to obtain mode info. (vga_save_state())\n",
1495 adp->va_unit, adp->va_name);
1498 buf[0] = readb(BIOS_PADDRTOVADDR(0x44a)); /* COLS */
1499 buf[1] = readb(BIOS_PADDRTOVADDR(0x484)); /* ROWS */
1500 buf[2] = readb(BIOS_PADDRTOVADDR(0x485)); /* POINTS */
1501 buf[3] = readb(BIOS_PADDRTOVADDR(0x44c));
1502 buf[4] = readb(BIOS_PADDRTOVADDR(0x44d));
1510 * Set video registers at once.
1511 * NOTE: this function only updates the standard VGA registers.
1512 * any extra/extended registers of SVGA adapters are not changed.
1515 vga_load_state(video_adapter_t *adp, void *p)
1521 prologue(adp, V_ADP_STATELOAD, ENODEV);
1522 if (((adp_state_t *)p)->sig != V_STATE_SIG)
1525 buf = ((adp_state_t *)p)->regs;
1529 hexdump(buf, V_MODE_PARAM_SIZE, NULL, HD_OMIT_CHARS | HD_OMIT_COUNT);
1534 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */
1535 for (i = 0; i < 4; ++i) { /* program sequencer */
1537 outb(TSREG, buf[i + 5]);
1539 outb(MISC, buf[9]); /* set dot-clock */
1540 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */
1541 outb(crtc_addr, 0x11);
1542 outb(crtc_addr + 1, inb(crtc_addr + 1) & 0x7F);
1543 for (i = 0; i < 25; ++i) { /* program crtc */
1545 outb(crtc_addr + 1, buf[i + 10]);
1547 inb(crtc_addr+6); /* reset flip-flop */
1548 for (i = 0; i < 20; ++i) { /* program attribute ctrl */
1550 outb(ATC, buf[i + 35]);
1552 for (i = 0; i < 9; ++i) { /* program graph data ctrl */
1554 outb(GDCREG, buf[i + 55]);
1556 inb(crtc_addr + 6); /* reset flip-flop */
1557 outb(ATC, 0x20); /* enable palette */
1559 #if 0 /* XXX a temporary workaround for kernel panic */
1560 #ifndef VGA_NO_MODE_CHANGE
1561 if (adp->va_unit == V_ADP_PRIMARY) {
1562 writeb(BIOS_PADDRTOVADDR(0x44a), buf[0]); /* COLS */
1563 writeb(BIOS_PADDRTOVADDR(0x484), buf[1] + rows_offset - 1); /* ROWS */
1564 writeb(BIOS_PADDRTOVADDR(0x485), buf[2]); /* POINTS */
1566 writeb(BIOS_PADDRTOVADDR(0x44c), buf[3]);
1567 writeb(BIOS_PADDRTOVADDR(0x44d), buf[4]);
1570 #endif /* !VGA_NO_MODE_CHANGE */
1579 * Change the origin (window mapping) of the banked frame buffer.
1582 vga_set_origin(video_adapter_t *adp, off_t offset)
1585 * The standard video modes do not require window mapping;
1586 * always return error.
1593 * Read the position of the hardware text cursor.
1596 vga_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
1603 if (adp->va_info.vi_flags & V_INFO_GRAPHICS)
1608 off = inb(CRTC + 1);
1610 off = (off << 8) | inb(CRTC + 1);
1613 *row = off / adp->va_info.vi_width;
1614 *col = off % adp->va_info.vi_width;
1621 * Move the hardware text cursor. If col and row are both -1,
1622 * the cursor won't be shown.
1625 vga_set_hw_cursor(video_adapter_t *adp, int col, int row)
1632 if ((col == -1) && (row == -1)) {
1635 if (adp->va_info.vi_flags & V_INFO_GRAPHICS)
1637 off = row*adp->va_info.vi_width + col;
1642 outb(CRTC + 1, off >> 8);
1644 outb(CRTC + 1, off & 0x00ff);
1651 * set_hw_cursor_shape():
1652 * Change the shape of the hardware text cursor. If the height is
1653 * zero or negative, the cursor won't be shown.
1656 vga_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
1657 int celsize, int blink)
1664 /* make the cursor invisible */
1671 outb(CRTC + 1, celsize - base - height);
1673 outb(CRTC + 1, celsize - base - 1);
1682 * Put the display in power save/power off mode.
1685 vga_blank_display(video_adapter_t *adp, int mode)
1691 case V_DISPLAY_SUSPEND:
1692 case V_DISPLAY_STAND_BY:
1696 outb(TSREG, val | 0x20);
1698 val = inb(CRTC + 1);
1699 outb(CRTC + 1, val & ~0x80);
1705 outb(TSREG, val | 0x20);
1711 outb(TSREG, val & 0xDF);
1713 val = inb(CRTC + 1);
1714 outb(CRTC + 1, val | 0x80);
1724 * Mmap frame buffer.
1727 vga_mmap_buf(video_adapter_t *adp, vm_offset_t offset, int prot)
1729 if (adp->va_info.vi_flags & V_INFO_LINEAR)
1733 kprintf("vga_mmap_buf(): window:0x%x, offset:%p\n",
1734 adp->va_info.vi_window, (void *)offset);
1737 /* XXX: is this correct? */
1738 if (offset > adp->va_window_size - PAGE_SIZE)
1741 #if defined(__i386__)
1742 return i386_btop(adp->va_info.vi_window + offset);
1743 #elif defined(__x86_64__)
1744 return x86_64_btop(adp->va_info.vi_window + offset);
1746 #error "vga_mmap_buf needs to return something"
1750 #ifndef VGA_NO_MODE_CHANGE
1753 planar_fill(video_adapter_t *adp, int val)
1756 int at; /* position in the frame buffer */
1759 lwkt_gettoken(&tty_token);
1760 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */
1761 outw(GDCIDX, 0x0003); /* data rotate/function select */
1762 outw(GDCIDX, 0x0f01); /* set/reset enable */
1763 outw(GDCIDX, 0xff08); /* bit mask */
1764 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */
1766 length = adp->va_line_width*adp->va_info.vi_height;
1767 while (length > 0) {
1768 l = imin(length, adp->va_window_size);
1769 (*vidsw[adp->va_index]->set_win_org)(adp, at);
1770 bzero_io(adp->va_window, l);
1774 outw(GDCIDX, 0x0000); /* set/reset */
1775 outw(GDCIDX, 0x0001); /* set/reset enable */
1776 lwkt_reltoken(&tty_token);
1780 packed_fill(video_adapter_t *adp, int val)
1783 int at; /* position in the frame buffer */
1786 lwkt_gettoken(&tty_token);
1788 length = adp->va_line_width*adp->va_info.vi_height;
1789 while (length > 0) {
1790 l = imin(length, adp->va_window_size);
1791 (*vidsw[adp->va_index]->set_win_org)(adp, at);
1792 fill_io(val, adp->va_window, l);
1796 lwkt_reltoken(&tty_token);
1800 direct_fill(video_adapter_t *adp, int val)
1803 int at; /* position in the frame buffer */
1806 lwkt_gettoken(&tty_token);
1808 length = adp->va_line_width*adp->va_info.vi_height;
1809 while (length > 0) {
1810 l = imin(length, adp->va_window_size);
1811 (*vidsw[adp->va_index]->set_win_org)(adp, at);
1812 switch (adp->va_info.vi_pixel_size) {
1813 case sizeof(u_int16_t):
1814 fillw_io(val, adp->va_window, l/sizeof(u_int16_t));
1819 case sizeof(u_int32_t):
1820 filll_io(val, adp->va_window, l/sizeof(u_int32_t));
1826 lwkt_reltoken(&tty_token);
1830 vga_clear(video_adapter_t *adp)
1832 switch (adp->va_info.vi_mem_model) {
1833 case V_INFO_MM_TEXT:
1834 /* do nothing? XXX */
1836 case V_INFO_MM_PLANAR:
1837 planar_fill(adp, 0);
1839 case V_INFO_MM_PACKED:
1840 packed_fill(adp, 0);
1842 case V_INFO_MM_DIRECT:
1843 direct_fill(adp, 0);
1851 planar_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
1856 int offset; /* offset within window */
1860 lwkt_gettoken(&tty_token);
1861 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */
1862 outw(GDCIDX, 0x0003); /* data rotate/function select */
1863 outw(GDCIDX, 0x0f01); /* set/reset enable */
1864 outw(GDCIDX, 0xff08); /* bit mask */
1865 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */
1867 banksize = adp->va_window_size;
1870 pos = adp->va_line_width*y + x/8;
1871 if (bank != pos/banksize) {
1872 (*vidsw[adp->va_index]->set_win_org)(adp, pos);
1873 bank = pos/banksize;
1875 offset = pos%banksize;
1876 bx = (x + cx)/8 - x/8;
1878 outw(GDCIDX, ((0xff00 >> (x % 8)) & 0xff00) | 0x08);
1879 writeb(adp->va_window + offset, 0);
1882 if (offset >= banksize) {
1884 ++bank; /* next bank */
1885 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize);
1887 outw(GDCIDX, 0xff08); /* bit mask */
1890 l = imin(bx, banksize);
1891 bzero_io(adp->va_window + offset, l);
1894 if (offset >= banksize) {
1896 ++bank; /* next bank */
1897 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize);
1901 outw(GDCIDX, (~(0xff00 >> ((x + cx) % 8)) & 0xff00) | 0x08);
1902 writeb(adp->va_window + offset, 0);
1904 if (offset >= banksize) {
1906 ++bank; /* next bank */
1907 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize);
1909 outw(GDCIDX, 0xff08); /* bit mask */
1915 outw(GDCIDX, 0xff08); /* bit mask */
1916 outw(GDCIDX, 0x0000); /* set/reset */
1917 outw(GDCIDX, 0x0001); /* set/reset enable */
1918 lwkt_reltoken(&tty_token);
1922 packed_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
1927 int offset; /* offset within window */
1930 lwkt_gettoken(&tty_token);
1931 banksize = adp->va_window_size;
1933 cx *= adp->va_info.vi_pixel_size;
1935 pos = adp->va_line_width*y + x*adp->va_info.vi_pixel_size;
1936 if (bank != pos/banksize) {
1937 (*vidsw[adp->va_index]->set_win_org)(adp, pos);
1938 bank = pos/banksize;
1940 offset = pos%banksize;
1941 end = imin(offset + cx, banksize);
1942 fill_io(val, adp->va_window + offset,
1943 (end - offset)/adp->va_info.vi_pixel_size);
1944 /* the line may cross the window boundary */
1945 if (offset + cx > banksize) {
1946 ++bank; /* next bank */
1947 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize);
1948 end = offset + cx - banksize;
1949 fill_io(val, adp->va_window, end/adp->va_info.vi_pixel_size);
1954 lwkt_reltoken(&tty_token);
1958 direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
1963 int offset; /* offset within window */
1966 lwkt_gettoken(&tty_token);
1968 * XXX: the function assumes that banksize is a muliple of
1969 * sizeof(u_int16_t).
1971 banksize = adp->va_window_size;
1973 cx *= sizeof(u_int16_t);
1975 pos = adp->va_line_width*y + x*sizeof(u_int16_t);
1976 if (bank != pos/banksize) {
1977 (*vidsw[adp->va_index]->set_win_org)(adp, pos);
1978 bank = pos/banksize;
1980 offset = pos%banksize;
1981 end = imin(offset + cx, banksize);
1982 fillw_io(val, adp->va_window + offset,
1983 (end - offset)/sizeof(u_int16_t));
1984 /* the line may cross the window boundary */
1985 if (offset + cx > banksize) {
1986 ++bank; /* next bank */
1987 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize);
1988 end = offset + cx - banksize;
1989 fillw_io(val, adp->va_window, end/sizeof(u_int16_t));
1994 lwkt_reltoken(&tty_token);
1998 direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2003 int offset; /* offset within window */
2009 lwkt_gettoken(&tty_token);
2010 b[0] = val & 0x0000ff;
2011 b[1] = (val >> 8) & 0x0000ff;
2012 b[2] = (val >> 16) & 0x0000ff;
2013 banksize = adp->va_window_size;
2017 pos = adp->va_line_width*y + x*3;
2018 if (bank != pos/banksize) {
2019 (*vidsw[adp->va_index]->set_win_org)(adp, pos);
2020 bank = pos/banksize;
2022 offset = pos%banksize;
2023 end = imin(offset + cx, banksize);
2024 for (i = 0, j = offset; j < end; i = (++i)%3, ++j) {
2025 writeb(adp->va_window + j, b[i]);
2027 /* the line may cross the window boundary */
2028 if (offset + cx >= banksize) {
2029 ++bank; /* next bank */
2030 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize);
2032 end = offset + cx - banksize;
2033 for (; j < end; i = (++i)%3, ++j) {
2034 writeb(adp->va_window + j, b[i]);
2040 lwkt_reltoken(&tty_token);
2044 direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2049 int offset; /* offset within window */
2052 lwkt_gettoken(&tty_token);
2054 * XXX: the function assumes that banksize is a muliple of
2055 * sizeof(u_int32_t).
2057 banksize = adp->va_window_size;
2059 cx *= sizeof(u_int32_t);
2061 pos = adp->va_line_width*y + x*sizeof(u_int32_t);
2062 if (bank != pos/banksize) {
2063 (*vidsw[adp->va_index]->set_win_org)(adp, pos);
2064 bank = pos/banksize;
2066 offset = pos%banksize;
2067 end = imin(offset + cx, banksize);
2068 filll_io(val, adp->va_window + offset,
2069 (end - offset)/sizeof(u_int32_t));
2070 /* the line may cross the window boundary */
2071 if (offset + cx > banksize) {
2072 ++bank; /* next bank */
2073 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize);
2074 end = offset + cx - banksize;
2075 filll_io(val, adp->va_window, end/sizeof(u_int32_t));
2080 lwkt_reltoken(&tty_token);
2084 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2086 switch (adp->va_info.vi_mem_model) {
2087 case V_INFO_MM_TEXT:
2088 /* do nothing? XXX */
2090 case V_INFO_MM_PLANAR:
2091 planar_fill_rect(adp, val, x, y, cx, cy);
2093 case V_INFO_MM_PACKED:
2094 packed_fill_rect(adp, val, x, y, cx, cy);
2096 case V_INFO_MM_DIRECT:
2097 switch (adp->va_info.vi_pixel_size) {
2098 case sizeof(u_int16_t):
2099 direct_fill_rect16(adp, val, x, y, cx, cy);
2102 direct_fill_rect24(adp, val, x, y, cx, cy);
2104 case sizeof(u_int32_t):
2105 direct_fill_rect32(adp, val, x, y, cx, cy);
2114 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2121 vga_bitblt(video_adapter_t *adp,...)
2127 #endif /* !VGA_NO_MODE_CHANGE */
2130 get_palette(video_adapter_t *adp, int base, int count,
2131 u_char *red, u_char *green, u_char *blue, u_char *trans)
2137 if (count < 0 || base < 0 || count > 256 || base > 256 ||
2141 r = kmalloc(count*3, M_DEVBUF, M_WAITOK);
2144 if (vga_save_palette2(adp, base, count, r, g, b)) {
2148 copyout(r, red, count);
2149 copyout(g, green, count);
2150 copyout(b, blue, count);
2151 if (trans != NULL) {
2153 copyout(r, trans, count);
2161 set_palette(video_adapter_t *adp, int base, int count,
2162 u_char *red, u_char *green, u_char *blue, u_char *trans)
2169 if (count < 0 || base < 0 || count > 256 || base > 256 ||
2173 r = kmalloc(count*3, M_DEVBUF, M_WAITOK);
2176 err = copyin(red, r, count);
2178 err = copyin(green, g, count);
2180 err = copyin(blue, b, count);
2182 err = vga_load_palette2(adp, base, count, r, g, b);
2185 return (err ? ENODEV : 0);
2189 vga_dev_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg)
2192 case FBIO_GETWINORG: /* get frame buffer window origin */
2196 case FBIO_SETWINORG: /* set frame buffer window origin */
2199 case FBIO_SETDISPSTART: /* set display start address */
2200 return (set_display_start(adp,
2201 ((video_display_start_t *)arg)->x,
2202 ((video_display_start_t *)arg)->y)
2205 case FBIO_SETLINEWIDTH: /* set scan line length in pixel */
2206 return (set_line_length(adp, *(u_int *)arg) ? ENODEV : 0);
2208 case FBIO_GETPALETTE: /* get color palette */
2209 return get_palette(adp, ((video_color_palette_t *)arg)->index,
2210 ((video_color_palette_t *)arg)->count,
2211 ((video_color_palette_t *)arg)->red,
2212 ((video_color_palette_t *)arg)->green,
2213 ((video_color_palette_t *)arg)->blue,
2214 ((video_color_palette_t *)arg)->transparent);
2216 case FBIO_SETPALETTE: /* set color palette */
2217 return set_palette(adp, ((video_color_palette_t *)arg)->index,
2218 ((video_color_palette_t *)arg)->count,
2219 ((video_color_palette_t *)arg)->red,
2220 ((video_color_palette_t *)arg)->green,
2221 ((video_color_palette_t *)arg)->blue,
2222 ((video_color_palette_t *)arg)->transparent);
2224 case FBIOGTYPE: /* get frame buffer type info. */
2225 ((struct fbtype *)arg)->fb_type = fb_type(adp->va_type);
2226 ((struct fbtype *)arg)->fb_height = adp->va_info.vi_height;
2227 ((struct fbtype *)arg)->fb_width = adp->va_info.vi_width;
2228 ((struct fbtype *)arg)->fb_depth = adp->va_info.vi_depth;
2229 if ((adp->va_info.vi_depth <= 1) || (adp->va_info.vi_depth > 8))
2230 ((struct fbtype *)arg)->fb_cmsize = 0;
2232 ((struct fbtype *)arg)->fb_cmsize = 1 << adp->va_info.vi_depth;
2233 ((struct fbtype *)arg)->fb_size = adp->va_buffer_size;
2236 case FBIOGETCMAP: /* get color palette */
2237 return get_palette(adp, ((struct fbcmap *)arg)->index,
2238 ((struct fbcmap *)arg)->count,
2239 ((struct fbcmap *)arg)->red,
2240 ((struct fbcmap *)arg)->green,
2241 ((struct fbcmap *)arg)->blue, NULL);
2243 case FBIOPUTCMAP: /* set color palette */
2244 return set_palette(adp, ((struct fbcmap *)arg)->index,
2245 ((struct fbcmap *)arg)->count,
2246 ((struct fbcmap *)arg)->red,
2247 ((struct fbcmap *)arg)->green,
2248 ((struct fbcmap *)arg)->blue, NULL);
2251 return fb_commonioctl(adp, cmd, arg);
2257 * Print some information about the video adapter and video modes,
2258 * with requested level of details.
2261 vga_diag(video_adapter_t *adp, int level)
2273 #ifndef VGA_NO_MODE_CHANGE
2274 kprintf("vga: DCC code:0x%02x\n",
2275 readb(BIOS_PADDRTOVADDR(0x488)));
2276 kprintf("vga: CRTC:0x%x, video option:0x%02x, ",
2277 readw(BIOS_PADDRTOVADDR(0x463)),
2278 readb(BIOS_PADDRTOVADDR(0x487)));
2279 kprintf("rows:%d, cols:%d, font height:%d\n",
2280 readb(BIOS_PADDRTOVADDR(0x44a)),
2281 readb(BIOS_PADDRTOVADDR(0x484)) + 1,
2282 readb(BIOS_PADDRTOVADDR(0x485)));
2283 kprintf("vga: param table:%p\n", video_mode_ptr);
2284 kprintf("vga: rows_offset:%d\n", rows_offset);
2286 #endif /* FB_DEBUG > 1 */
2288 fb_dump_adp_info(VGA_DRIVER_NAME, adp, level);
2291 if (adp->va_flags & V_ADP_MODECHANGE) {
2292 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) {
2293 if (bios_vmode[i].vi_mode == NA)
2295 if (get_mode_param(bios_vmode[i].vi_mode) == NULL)
2297 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &bios_vmode[i], level);
2300 vga_get_info(adp, adp->va_initial_mode, &info); /* shouldn't fail */
2301 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &info, level);
2303 #endif /* FB_DEBUG > 1 */
2305 #ifndef VGA_NO_MODE_CHANGE
2306 if (video_mode_ptr == NULL)
2307 kprintf("vga%d: %s: WARNING: video mode switching is not "
2308 "fully supported on this adapter\n",
2309 adp->va_unit, adp->va_name);
2314 kprintf("VGA parameters upon power-up\n");
2315 hexdump(adpstate.regs, sizeof(adpstate.regs), NULL,
2316 HD_OMIT_CHARS | HD_OMIT_COUNT);
2318 mp = get_mode_param(adp->va_initial_mode);
2319 if (mp == NULL) /* this shouldn't be happening */
2321 kprintf("VGA parameters in BIOS for mode %d\n", adp->va_initial_mode);
2322 hexdump(adpstate2.regs, sizeof(adpstate2.regs), NULL,
2323 HD_OMIT_CHARS | HD_OMIT_COUNT);
2324 kprintf("VGA parameters to be used for mode %d\n", adp->va_initial_mode);
2325 hexdump(mp, V_MODE_PARAM_SIZE, NULL, HD_OMIT_CHARS | HD_OMIT_COUNT);