FreeBSD/Linux Kernel Cross Reference
sys/dev/fb/vga.c
1 /*-
2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
3 * Copyright (c) 1992-1998 Søren Schmidt
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
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.
17 *
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.
28 *
29 */
30
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
33
34 #include "opt_vga.h"
35 #include "opt_fb.h"
36 #include "opt_syscons.h" /* should be removed in the future, XXX */
37
38 #include <sys/param.h>
39 #include <sys/systm.h>
40 #include <sys/kernel.h>
41 #include <sys/conf.h>
42 #include <sys/fcntl.h>
43 #include <sys/malloc.h>
44 #include <sys/fbio.h>
45
46 #include <vm/vm.h>
47 #include <vm/vm_param.h>
48 #include <vm/pmap.h>
49
50 #include <machine/md_var.h>
51 #if defined(__i386__) || defined(__amd64__)
52 #include <machine/pc/bios.h>
53 #endif
54 #include <machine/bus.h>
55
56 #include <dev/fb/fbreg.h>
57 #include <dev/fb/vgareg.h>
58
59 #include <isa/isareg.h>
60
61 #ifndef VGA_DEBUG
62 #define VGA_DEBUG 0
63 #endif
64
65 /* XXX machine/pc/bios.h has got too much i386-specific stuff in it */
66 #ifndef BIOS_PADDRTOVADDR
67 #define BIOS_PADDRTOVADDR(x) (x)
68 #endif
69
70 int
71 vga_probe_unit(int unit, video_adapter_t *buf, int flags)
72 {
73 video_adapter_t *adp;
74 video_switch_t *sw;
75 int error;
76
77 sw = vid_get_switch(VGA_DRIVER_NAME);
78 if (sw == NULL)
79 return 0;
80 error = (*sw->probe)(unit, &adp, NULL, flags);
81 if (error)
82 return error;
83 bcopy(adp, buf, sizeof(*buf));
84 return 0;
85 }
86
87 int
88 vga_attach_unit(int unit, vga_softc_t *sc, int flags)
89 {
90 video_switch_t *sw;
91 int error;
92
93 sw = vid_get_switch(VGA_DRIVER_NAME);
94 if (sw == NULL)
95 return ENXIO;
96
97 error = (*sw->probe)(unit, &sc->adp, NULL, flags);
98 if (error)
99 return error;
100 return (*sw->init)(unit, sc->adp, flags);
101 }
102
103 /* cdev driver functions */
104
105 #ifdef FB_INSTALL_CDEV
106
107 int
108 vga_open(struct cdev *dev, vga_softc_t *sc, int flag, int mode, struct thread *td)
109 {
110 if (sc == NULL)
111 return ENXIO;
112 if (mode & (O_CREAT | O_APPEND | O_TRUNC))
113 return ENODEV;
114
115 return genfbopen(&sc->gensc, sc->adp, flag, mode, td);
116 }
117
118 int
119 vga_close(struct cdev *dev, vga_softc_t *sc, int flag, int mode, struct thread *td)
120 {
121 return genfbclose(&sc->gensc, sc->adp, flag, mode, td);
122 }
123
124 int
125 vga_read(struct cdev *dev, vga_softc_t *sc, struct uio *uio, int flag)
126 {
127 return genfbread(&sc->gensc, sc->adp, uio, flag);
128 }
129
130 int
131 vga_write(struct cdev *dev, vga_softc_t *sc, struct uio *uio, int flag)
132 {
133 return genfbread(&sc->gensc, sc->adp, uio, flag);
134 }
135
136 int
137 vga_ioctl(struct cdev *dev, vga_softc_t *sc, u_long cmd, caddr_t arg, int flag,
138 struct thread *td)
139 {
140 return genfbioctl(&sc->gensc, sc->adp, cmd, arg, flag, td);
141 }
142
143 int
144 vga_mmap(struct cdev *dev, vga_softc_t *sc, vm_offset_t offset, vm_offset_t *paddr,
145 int prot)
146 {
147 return genfbmmap(&sc->gensc, sc->adp, offset, paddr, prot);
148 }
149
150 #endif /* FB_INSTALL_CDEV */
151
152 /* LOW-LEVEL */
153
154 #include <machine/clock.h>
155 #ifdef __i386__
156 #include <machine/pc/vesa.h>
157 #endif
158
159 #define probe_done(adp) ((adp)->va_flags & V_ADP_PROBED)
160 #define init_done(adp) ((adp)->va_flags & V_ADP_INITIALIZED)
161 #define config_done(adp) ((adp)->va_flags & V_ADP_REGISTERED)
162
163 /* for compatibility with old kernel options */
164 #ifdef SC_ALT_SEQACCESS
165 #undef SC_ALT_SEQACCESS
166 #undef VGA_ALT_SEQACCESS
167 #define VGA_ALT_SEQACCESS 1
168 #endif
169
170 #ifdef SLOW_VGA
171 #undef SLOW_VGA
172 #undef VGA_SLOW_IOACCESS
173 #define VGA_SLOW_IOACCESS 1
174 #endif
175
176 /* architecture dependent option */
177 #ifndef __i386__
178 #define VGA_NO_BIOS 1
179 #endif
180
181 /* this should really be in `rtc.h' */
182 #define RTC_EQUIPMENT 0x14
183
184 /* various sizes */
185 #define V_MODE_MAP_SIZE (M_VGA_CG320 + 1)
186 #define V_MODE_PARAM_SIZE 64
187
188 /* video adapter state buffer */
189 struct adp_state {
190 int sig;
191 #define V_STATE_SIG 0x736f6962
192 u_char regs[V_MODE_PARAM_SIZE];
193 };
194 typedef struct adp_state adp_state_t;
195
196 /* video adapter information */
197 #define DCC_MONO 0
198 #define DCC_CGA40 1
199 #define DCC_CGA80 2
200 #define DCC_EGAMONO 3
201 #define DCC_EGA40 4
202 #define DCC_EGA80 5
203
204 /*
205 * NOTE: `va_window' should have a virtual address, but is initialized
206 * with a physical address in the following table, as verify_adapter()
207 * will perform address conversion at run-time.
208 */
209 static video_adapter_t adapter_init_value[] = {
210 /* DCC_MONO */
211 { 0, KD_MONO, "mda", 0, 0, 0, IO_MDA, IO_MDASIZE, MONO_CRTC,
212 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE,
213 0, 0, 0, 0, 7, 0, },
214 /* DCC_CGA40 */
215 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC,
216 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE,
217 0, 0, 0, 0, 3, 0, },
218 /* DCC_CGA80 */
219 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC,
220 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE,
221 0, 0, 0, 0, 3, 0, },
222 /* DCC_EGAMONO */
223 { 0, KD_EGA, "ega", 0, 0, 0, IO_MDA, 48, MONO_CRTC,
224 EGA_BUF_BASE, EGA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE,
225 0, 0, 0, 0, 7, 0, },
226 /* DCC_EGA40 */
227 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC,
228 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE,
229 0, 0, 0, 0, 3, 0, },
230 /* DCC_EGA80 */
231 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC,
232 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE,
233 0, 0, 0, 0, 3, 0, },
234 };
235
236 static video_adapter_t biosadapter[2];
237 static int biosadapters = 0;
238
239 /* video driver declarations */
240 static int vga_configure(int flags);
241 int (*vga_sub_configure)(int flags);
242 #if 0
243 static int vga_nop(void);
244 #endif
245 static int vga_error(void);
246 static vi_probe_t vga_probe;
247 static vi_init_t vga_init;
248 static vi_get_info_t vga_get_info;
249 static vi_query_mode_t vga_query_mode;
250 static vi_set_mode_t vga_set_mode;
251 static vi_save_font_t vga_save_font;
252 static vi_load_font_t vga_load_font;
253 static vi_show_font_t vga_show_font;
254 static vi_save_palette_t vga_save_palette;
255 static vi_load_palette_t vga_load_palette;
256 static vi_set_border_t vga_set_border;
257 static vi_save_state_t vga_save_state;
258 static vi_load_state_t vga_load_state;
259 static vi_set_win_org_t vga_set_origin;
260 static vi_read_hw_cursor_t vga_read_hw_cursor;
261 static vi_set_hw_cursor_t vga_set_hw_cursor;
262 static vi_set_hw_cursor_shape_t vga_set_hw_cursor_shape;
263 static vi_blank_display_t vga_blank_display;
264 static vi_mmap_t vga_mmap_buf;
265 static vi_ioctl_t vga_dev_ioctl;
266 #ifndef VGA_NO_MODE_CHANGE
267 static vi_clear_t vga_clear;
268 static vi_fill_rect_t vga_fill_rect;
269 static vi_bitblt_t vga_bitblt;
270 #else /* VGA_NO_MODE_CHANGE */
271 #define vga_clear (vi_clear_t *)vga_error
272 #define vga_fill_rect (vi_fill_rect_t *)vga_error
273 #define vga_bitblt (vi_bitblt_t *)vga_error
274 #endif
275 static vi_diag_t vga_diag;
276
277 static video_switch_t vgavidsw = {
278 vga_probe,
279 vga_init,
280 vga_get_info,
281 vga_query_mode,
282 vga_set_mode,
283 vga_save_font,
284 vga_load_font,
285 vga_show_font,
286 vga_save_palette,
287 vga_load_palette,
288 vga_set_border,
289 vga_save_state,
290 vga_load_state,
291 vga_set_origin,
292 vga_read_hw_cursor,
293 vga_set_hw_cursor,
294 vga_set_hw_cursor_shape,
295 vga_blank_display,
296 vga_mmap_buf,
297 vga_dev_ioctl,
298 vga_clear,
299 vga_fill_rect,
300 vga_bitblt,
301 vga_error,
302 vga_error,
303 vga_diag,
304 };
305
306 VIDEO_DRIVER(mda, vgavidsw, NULL);
307 VIDEO_DRIVER(cga, vgavidsw, NULL);
308 VIDEO_DRIVER(ega, vgavidsw, NULL);
309 VIDEO_DRIVER(vga, vgavidsw, vga_configure);
310
311 /* VGA BIOS standard video modes */
312 #define EOT (-1)
313 #define NA (-2)
314
315 static video_info_t bios_vmode[] = {
316 /* CGA */
317 { M_B40x25, V_INFO_COLOR, 40, 25, 8, 8, 2, 1,
318 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
319 { M_C40x25, V_INFO_COLOR, 40, 25, 8, 8, 4, 1,
320 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
321 { M_B80x25, V_INFO_COLOR, 80, 25, 8, 8, 2, 1,
322 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
323 { M_C80x25, V_INFO_COLOR, 80, 25, 8, 8, 4, 1,
324 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
325 /* EGA */
326 { M_ENH_B40x25, V_INFO_COLOR, 40, 25, 8, 14, 2, 1,
327 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
328 { M_ENH_C40x25, V_INFO_COLOR, 40, 25, 8, 14, 4, 1,
329 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
330 { M_ENH_B80x25, V_INFO_COLOR, 80, 25, 8, 14, 2, 1,
331 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
332 { M_ENH_C80x25, V_INFO_COLOR, 80, 25, 8, 14, 4, 1,
333 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
334 /* VGA */
335 { M_VGA_C40x25, V_INFO_COLOR, 40, 25, 8, 16, 4, 1,
336 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
337 { M_VGA_M80x25, 0, 80, 25, 8, 16, 2, 1,
338 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
339 { M_VGA_C80x25, V_INFO_COLOR, 80, 25, 8, 16, 4, 1,
340 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
341 /* MDA */
342 { M_EGAMONO80x25, 0, 80, 25, 8, 14, 2, 1,
343 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
344 /* EGA */
345 { M_ENH_B80x43, 0, 80, 43, 8, 8, 2, 1,
346 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
347 { M_ENH_C80x43, V_INFO_COLOR, 80, 43, 8, 8, 4, 1,
348 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
349 /* VGA */
350 { M_VGA_M80x30, 0, 80, 30, 8, 16, 2, 1,
351 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
352 { M_VGA_C80x30, V_INFO_COLOR, 80, 30, 8, 16, 4, 1,
353 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
354 { M_VGA_M80x50, 0, 80, 50, 8, 8, 2, 1,
355 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
356 { M_VGA_C80x50, V_INFO_COLOR, 80, 50, 8, 8, 4, 1,
357 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
358 { M_VGA_M80x60, 0, 80, 60, 8, 8, 2, 1,
359 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
360 { M_VGA_C80x60, V_INFO_COLOR, 80, 60, 8, 8, 4, 1,
361 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
362
363 #ifndef VGA_NO_MODE_CHANGE
364
365 #ifdef VGA_WIDTH90
366 { M_VGA_M90x25, 0, 90, 25, 8, 16, 2, 1,
367 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
368 { M_VGA_C90x25, V_INFO_COLOR, 90, 25, 8, 16, 4, 1,
369 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
370 { M_VGA_M90x30, 0, 90, 30, 8, 16, 2, 1,
371 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
372 { M_VGA_C90x30, V_INFO_COLOR, 90, 30, 8, 16, 4, 1,
373 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
374 { M_VGA_M90x43, 0, 90, 43, 8, 8, 2, 1,
375 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
376 { M_VGA_C90x43, V_INFO_COLOR, 90, 43, 8, 8, 4, 1,
377 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
378 { M_VGA_M90x50, 0, 90, 50, 8, 8, 2, 1,
379 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
380 { M_VGA_C90x50, V_INFO_COLOR, 90, 50, 8, 8, 4, 1,
381 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
382 { M_VGA_M90x60, 0, 90, 60, 8, 8, 2, 1,
383 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
384 { M_VGA_C90x60, V_INFO_COLOR, 90, 60, 8, 8, 4, 1,
385 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT },
386 #endif /* VGA_WIDTH90 */
387
388 /* CGA */
389 { M_BG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1,
390 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA },
391 { M_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1,
392 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA },
393 { M_BG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 1, 1,
394 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA },
395 /* EGA */
396 { M_CG320_D, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 4, 4,
397 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0,
398 V_INFO_MM_PLANAR },
399 { M_CG640_E, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 4, 4,
400 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
401 V_INFO_MM_PLANAR },
402 { M_EGAMONOAPA, V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4,
403 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, 64*1024, 0, 0 ,
404 V_INFO_MM_PLANAR },
405 { M_ENHMONOAPA2,V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4,
406 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
407 V_INFO_MM_PLANAR },
408 { M_CG640x350, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 2, 2,
409 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
410 V_INFO_MM_PLANAR },
411 { M_ENH_CG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4,
412 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
413 V_INFO_MM_PLANAR },
414 /* VGA */
415 { M_BG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4,
416 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
417 V_INFO_MM_PLANAR },
418 { M_CG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4,
419 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 ,
420 V_INFO_MM_PLANAR },
421 { M_VGA_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 8, 1,
422 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0,
423 V_INFO_MM_PACKED, 1 },
424 { M_VGA_MODEX, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 240, 8, 8, 8, 4,
425 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0,
426 V_INFO_MM_VGAX, 1 },
427 #endif /* VGA_NO_MODE_CHANGE */
428
429 { EOT },
430 };
431
432 static int vga_init_done = FALSE;
433 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
434 static u_char *video_mode_ptr = NULL; /* EGA/VGA */
435 static u_char *video_mode_ptr2 = NULL; /* CGA/MDA */
436 #endif
437 static u_char *mode_map[V_MODE_MAP_SIZE];
438 static adp_state_t adpstate;
439 static adp_state_t adpstate2;
440 static int rows_offset = 1;
441
442 /* local macros and functions */
443 #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff))
444
445 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
446 static void map_mode_table(u_char *map[], u_char *table, int max);
447 #endif
448 static void clear_mode_map(video_adapter_t *adp, u_char *map[], int max,
449 int color);
450 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
451 static int map_mode_num(int mode);
452 #endif
453 static int map_gen_mode_num(int type, int color, int mode);
454 static int map_bios_mode_num(int type, int color, int bios_mode);
455 static u_char *get_mode_param(int mode);
456 #ifndef VGA_NO_BIOS
457 static void fill_adapter_param(int code, video_adapter_t *adp);
458 #endif
459 static int verify_adapter(video_adapter_t *adp);
460 static void update_adapter_info(video_adapter_t *adp, video_info_t *info);
461 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
462 #define COMP_IDENTICAL 0
463 #define COMP_SIMILAR 1
464 #define COMP_DIFFERENT 2
465 static int comp_adpregs(u_char *buf1, u_char *buf2);
466 #endif
467 static int probe_adapters(void);
468 static int set_line_length(video_adapter_t *adp, int pixel);
469 static int set_display_start(video_adapter_t *adp, int x, int y);
470
471 #ifndef VGA_NO_MODE_CHANGE
472 #ifdef VGA_WIDTH90
473 static void set_width90(adp_state_t *params);
474 #endif
475 #endif /* !VGA_NO_MODE_CHANGE */
476
477 #ifndef VGA_NO_FONT_LOADING
478 #define PARAM_BUFSIZE 6
479 static void set_font_mode(video_adapter_t *adp, u_char *buf);
480 static void set_normal_mode(video_adapter_t *adp, u_char *buf);
481 #endif
482
483 #ifndef VGA_NO_MODE_CHANGE
484 static void filll_io(int val, vm_offset_t d, size_t size);
485 static void planar_fill(video_adapter_t *adp, int val);
486 static void packed_fill(video_adapter_t *adp, int val);
487 static void direct_fill(video_adapter_t *adp, int val);
488 #ifdef notyet
489 static void planar_fill_rect(video_adapter_t *adp, int val, int x, int y,
490 int cx, int cy);
491 static void packed_fill_rect(video_adapter_t *adp, int val, int x, int y,
492 int cx, int cy);
493 static void direct_fill_rect16(video_adapter_t *adp, int val, int x, int y,
494 int cx, int cy);
495 static void direct_fill_rect24(video_adapter_t *adp, int val, int x, int y,
496 int cx, int cy);
497 static void direct_fill_rect32(video_adapter_t *adp, int val, int x, int y,
498 int cx, int cy);
499 #endif /* notyet */
500 #endif /* !VGA_NO_MODE_CHANGE */
501
502 static void dump_buffer(u_char *buf, size_t len);
503
504 #define ISMAPPED(pa, width) \
505 (((pa) <= (u_long)0x1000 - (width)) \
506 || ((pa) >= ISA_HOLE_START && (pa) <= 0x100000 - (width)))
507
508 #define prologue(adp, flag, err) \
509 if (!vga_init_done || !((adp)->va_flags & (flag))) \
510 return (err)
511
512 /* a backdoor for the console driver */
513 static int
514 vga_configure(int flags)
515 {
516 int i;
517
518 probe_adapters();
519 for (i = 0; i < biosadapters; ++i) {
520 if (!probe_done(&biosadapter[i]))
521 continue;
522 biosadapter[i].va_flags |= V_ADP_INITIALIZED;
523 if (!config_done(&biosadapter[i])) {
524 if (vid_register(&biosadapter[i]) < 0)
525 continue;
526 biosadapter[i].va_flags |= V_ADP_REGISTERED;
527 }
528 }
529 if (vga_sub_configure != NULL)
530 (*vga_sub_configure)(flags);
531
532 return biosadapters;
533 }
534
535 /* local subroutines */
536
537 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
538 /* construct the mode parameter map */
539 static void
540 map_mode_table(u_char *map[], u_char *table, int max)
541 {
542 int i;
543
544 for(i = 0; i < max; ++i)
545 map[i] = table + i*V_MODE_PARAM_SIZE;
546 for(; i < V_MODE_MAP_SIZE; ++i)
547 map[i] = NULL;
548 }
549 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */
550
551 static void
552 clear_mode_map(video_adapter_t *adp, u_char *map[], int max, int color)
553 {
554 video_info_t info;
555 int i;
556
557 /*
558 * NOTE: we don't touch `bios_vmode[]' because it is shared
559 * by all adapters.
560 */
561 for(i = 0; i < max; ++i) {
562 if (vga_get_info(adp, i, &info))
563 continue;
564 if ((info.vi_flags & V_INFO_COLOR) != color)
565 map[i] = NULL;
566 }
567 }
568
569 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
570 /* map the non-standard video mode to a known mode number */
571 static int
572 map_mode_num(int mode)
573 {
574 static struct {
575 int from;
576 int to;
577 } mode_map[] = {
578 { M_ENH_B80x43, M_ENH_B80x25 },
579 { M_ENH_C80x43, M_ENH_C80x25 },
580 { M_VGA_M80x30, M_VGA_M80x25 },
581 { M_VGA_C80x30, M_VGA_C80x25 },
582 { M_VGA_M80x50, M_VGA_M80x25 },
583 { M_VGA_C80x50, M_VGA_C80x25 },
584 { M_VGA_M80x60, M_VGA_M80x25 },
585 { M_VGA_C80x60, M_VGA_C80x25 },
586 #ifdef VGA_WIDTH90
587 { M_VGA_M90x25, M_VGA_M80x25 },
588 { M_VGA_C90x25, M_VGA_C80x25 },
589 { M_VGA_M90x30, M_VGA_M80x25 },
590 { M_VGA_C90x30, M_VGA_C80x25 },
591 { M_VGA_M90x43, M_ENH_B80x25 },
592 { M_VGA_C90x43, M_ENH_C80x25 },
593 { M_VGA_M90x50, M_VGA_M80x25 },
594 { M_VGA_C90x50, M_VGA_C80x25 },
595 { M_VGA_M90x60, M_VGA_M80x25 },
596 { M_VGA_C90x60, M_VGA_C80x25 },
597 #endif
598 { M_VGA_MODEX, M_VGA_CG320 },
599 };
600 int i;
601
602 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) {
603 if (mode_map[i].from == mode)
604 return mode_map[i].to;
605 }
606 return mode;
607 }
608 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */
609
610 /* map a generic video mode to a known mode number */
611 static int
612 map_gen_mode_num(int type, int color, int mode)
613 {
614 static struct {
615 int from;
616 int to_color;
617 int to_mono;
618 } mode_map[] = {
619 { M_TEXT_80x30, M_VGA_C80x30, M_VGA_M80x30, },
620 { M_TEXT_80x43, M_ENH_C80x43, M_ENH_B80x43, },
621 { M_TEXT_80x50, M_VGA_C80x50, M_VGA_M80x50, },
622 { M_TEXT_80x60, M_VGA_C80x60, M_VGA_M80x60, },
623 };
624 int i;
625
626 if (mode == M_TEXT_80x25) {
627 switch (type) {
628
629 case KD_VGA:
630 if (color)
631 return M_VGA_C80x25;
632 else
633 return M_VGA_M80x25;
634 break;
635
636 case KD_EGA:
637 if (color)
638 return M_ENH_C80x25;
639 else
640 return M_EGAMONO80x25;
641 break;
642
643 case KD_CGA:
644 return M_C80x25;
645
646 case KD_MONO:
647 case KD_HERCULES:
648 return M_EGAMONO80x25; /* XXX: this name is confusing */
649
650 default:
651 return -1;
652 }
653 }
654
655 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) {
656 if (mode_map[i].from == mode)
657 return ((color) ? mode_map[i].to_color : mode_map[i].to_mono);
658 }
659 return mode;
660 }
661
662 /* turn the BIOS video number into our video mode number */
663 static int
664 map_bios_mode_num(int type, int color, int bios_mode)
665 {
666 static int cga_modes[7] = {
667 M_B40x25, M_C40x25, /* 0, 1 */
668 M_B80x25, M_C80x25, /* 2, 3 */
669 M_BG320, M_CG320,
670 M_BG640,
671 };
672 static int ega_modes[17] = {
673 M_ENH_B40x25, M_ENH_C40x25, /* 0, 1 */
674 M_ENH_B80x25, M_ENH_C80x25, /* 2, 3 */
675 M_BG320, M_CG320,
676 M_BG640,
677 M_EGAMONO80x25, /* 7 */
678 8, 9, 10, 11, 12,
679 M_CG320_D,
680 M_CG640_E,
681 M_ENHMONOAPA2, /* XXX: video momery > 64K */
682 M_ENH_CG640, /* XXX: video momery > 64K */
683 };
684 static int vga_modes[20] = {
685 M_VGA_C40x25, M_VGA_C40x25, /* 0, 1 */
686 M_VGA_C80x25, M_VGA_C80x25, /* 2, 3 */
687 M_BG320, M_CG320,
688 M_BG640,
689 M_VGA_M80x25, /* 7 */
690 8, 9, 10, 11, 12,
691 M_CG320_D,
692 M_CG640_E,
693 M_ENHMONOAPA2,
694 M_ENH_CG640,
695 M_BG640x480, M_CG640x480,
696 M_VGA_CG320,
697 };
698
699 switch (type) {
700
701 case KD_VGA:
702 if (bios_mode < sizeof(vga_modes)/sizeof(vga_modes[0]))
703 return vga_modes[bios_mode];
704 else if (color)
705 return M_VGA_C80x25;
706 else
707 return M_VGA_M80x25;
708 break;
709
710 case KD_EGA:
711 if (bios_mode < sizeof(ega_modes)/sizeof(ega_modes[0]))
712 return ega_modes[bios_mode];
713 else if (color)
714 return M_ENH_C80x25;
715 else
716 return M_EGAMONO80x25;
717 break;
718
719 case KD_CGA:
720 if (bios_mode < sizeof(cga_modes)/sizeof(cga_modes[0]))
721 return cga_modes[bios_mode];
722 else
723 return M_C80x25;
724 break;
725
726 case KD_MONO:
727 case KD_HERCULES:
728 return M_EGAMONO80x25; /* XXX: this name is confusing */
729
730 default:
731 break;
732 }
733 return -1;
734 }
735
736 /* look up a parameter table entry */
737 static u_char
738 *get_mode_param(int mode)
739 {
740 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
741 if (mode >= V_MODE_MAP_SIZE)
742 mode = map_mode_num(mode);
743 #endif
744 if ((mode >= 0) && (mode < V_MODE_MAP_SIZE))
745 return mode_map[mode];
746 else
747 return NULL;
748 }
749
750 #ifndef VGA_NO_BIOS
751 static void
752 fill_adapter_param(int code, video_adapter_t *adp)
753 {
754 static struct {
755 int primary;
756 int secondary;
757 } dcc[] = {
758 { DCC_MONO, DCC_EGA40 /* CGA monitor */ },
759 { DCC_MONO, DCC_EGA80 /* CGA monitor */ },
760 { DCC_MONO, DCC_EGA80 },
761 { DCC_MONO, DCC_EGA80 },
762 { DCC_CGA40, DCC_EGAMONO },
763 { DCC_CGA80, DCC_EGAMONO },
764 { DCC_EGA40 /* CGA monitor */, DCC_MONO},
765 { DCC_EGA80 /* CGA monitor */, DCC_MONO},
766 { DCC_EGA80, DCC_MONO },
767 { DCC_EGA80, DCC_MONO },
768 { DCC_EGAMONO, DCC_CGA40 },
769 { DCC_EGAMONO, DCC_CGA80 },
770 };
771
772 if ((code < 0) || (code >= sizeof(dcc)/sizeof(dcc[0]))) {
773 adp[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO];
774 adp[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80];
775 } else {
776 adp[V_ADP_PRIMARY] = adapter_init_value[dcc[code].primary];
777 adp[V_ADP_SECONDARY] = adapter_init_value[dcc[code].secondary];
778 }
779 }
780 #endif /* VGA_NO_BIOS */
781
782 static int
783 verify_adapter(video_adapter_t *adp)
784 {
785 vm_offset_t buf;
786 u_int16_t v;
787 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
788 u_int32_t p;
789 #endif
790
791 buf = BIOS_PADDRTOVADDR(adp->va_window);
792 v = readw(buf);
793 writew(buf, 0xA55A);
794 if (readw(buf) != 0xA55A)
795 return ENXIO;
796 writew(buf, v);
797
798 switch (adp->va_type) {
799
800 case KD_EGA:
801 outb(adp->va_crtc_addr, 7);
802 if (inb(adp->va_crtc_addr) == 7) {
803 adp->va_type = KD_VGA;
804 adp->va_name = "vga";
805 adp->va_flags |= V_ADP_STATESAVE | V_ADP_PALETTE;
806 }
807 adp->va_flags |= V_ADP_STATELOAD | V_ADP_BORDER;
808 /* the color adapter may be in the 40x25 mode... XXX */
809
810 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
811 /* get the BIOS video mode pointer */
812 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8);
813 p = BIOS_SADDRTOLADDR(p);
814 if (ISMAPPED(p, sizeof(u_int32_t))) {
815 p = *(u_int32_t *)BIOS_PADDRTOVADDR(p);
816 p = BIOS_SADDRTOLADDR(p);
817 if (ISMAPPED(p, V_MODE_PARAM_SIZE))
818 video_mode_ptr = (u_char *)BIOS_PADDRTOVADDR(p);
819 }
820 #endif
821 break;
822
823 case KD_CGA:
824 adp->va_flags |= V_ADP_COLOR | V_ADP_BORDER;
825 /* may be in the 40x25 mode... XXX */
826 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
827 /* get the BIOS video mode pointer */
828 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4);
829 p = BIOS_SADDRTOLADDR(p);
830 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p);
831 #endif
832 break;
833
834 case KD_MONO:
835 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
836 /* get the BIOS video mode pointer */
837 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4);
838 p = BIOS_SADDRTOLADDR(p);
839 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p);
840 #endif
841 break;
842 }
843
844 return 0;
845 }
846
847 static void
848 update_adapter_info(video_adapter_t *adp, video_info_t *info)
849 {
850 adp->va_flags &= ~V_ADP_COLOR;
851 adp->va_flags |=
852 (info->vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0;
853 adp->va_crtc_addr =
854 (adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC;
855 adp->va_window = BIOS_PADDRTOVADDR(info->vi_window);
856 adp->va_window_size = info->vi_window_size;
857 adp->va_window_gran = info->vi_window_gran;
858 adp->va_window_orig = 0;
859 /* XXX */
860 adp->va_buffer = info->vi_buffer;
861 adp->va_buffer_size = info->vi_buffer_size;
862 if (info->vi_mem_model == V_INFO_MM_VGAX) {
863 adp->va_line_width = info->vi_width/2;
864 } else if (info->vi_flags & V_INFO_GRAPHICS) {
865 switch (info->vi_depth/info->vi_planes) {
866 case 1:
867 adp->va_line_width = info->vi_width/8;
868 break;
869 case 2:
870 adp->va_line_width = info->vi_width/4;
871 break;
872 case 4:
873 adp->va_line_width = info->vi_width/2;
874 break;
875 case 8:
876 default: /* shouldn't happen */
877 adp->va_line_width = info->vi_width;
878 break;
879 }
880 } else {
881 adp->va_line_width = info->vi_width;
882 }
883 adp->va_disp_start.x = 0;
884 adp->va_disp_start.y = 0;
885 bcopy(info, &adp->va_info, sizeof(adp->va_info));
886 }
887
888 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
889 /* compare two parameter table entries */
890 static int
891 comp_adpregs(u_char *buf1, u_char *buf2)
892 {
893 static struct {
894 u_char mask;
895 } params[V_MODE_PARAM_SIZE] = {
896 {0xff}, {0x00}, {0xff}, /* COLS}, ROWS}, POINTS */
897 {0x00}, {0x00}, /* page length */
898 {0xfe}, {0xff}, {0xff}, {0xff}, /* sequencer registers */
899 {0xf3}, /* misc register */
900 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, /* CRTC */
901 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff},
902 {0x00}, {0x00}, {0x00}, {0x00}, {0x00},
903 {0x00}, {0xff}, {0x7f}, {0xff}, {0xff},
904 {0x7f}, {0xff}, {0xff}, {0xef}, {0xff},
905 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* attribute controller regs */
906 {0xff}, {0xff}, {0xff}, {0xff}, {0xff},
907 {0xff}, {0xff}, {0xff}, {0xff}, {0xff},
908 {0xff}, {0xff}, {0xff}, {0xff}, {0xf0},
909 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* GDC register */
910 {0xff}, {0xff}, {0xff}, {0xff},
911 };
912 int identical = TRUE;
913 int i;
914
915 if ((buf1 == NULL) || (buf2 == NULL))
916 return COMP_DIFFERENT;
917
918 for (i = 0; i < sizeof(params)/sizeof(params[0]); ++i) {
919 if (params[i].mask == 0) /* don't care */
920 continue;
921 if ((buf1[i] & params[i].mask) != (buf2[i] & params[i].mask))
922 return COMP_DIFFERENT;
923 if (buf1[i] != buf2[i])
924 identical = FALSE;
925 }
926 return (identical) ? COMP_IDENTICAL : COMP_SIMILAR;
927 }
928 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */
929
930 /* probe video adapters and return the number of detected adapters */
931 static int
932 probe_adapters(void)
933 {
934 video_adapter_t *adp;
935 video_info_t info;
936 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
937 u_char *mp;
938 #endif
939 int i;
940
941 /* do this test only once */
942 if (vga_init_done)
943 return biosadapters;
944 vga_init_done = TRUE;
945
946 /*
947 * Locate display adapters.
948 * The AT architecture supports upto two adapters. `syscons' allows
949 * the following combinations of adapters:
950 * 1) MDA + CGA
951 * 2) MDA + EGA/VGA color
952 * 3) CGA + EGA/VGA mono
953 * Note that `syscons' doesn't bother with MCGA as it is only
954 * avaiable for low end PS/2 models which has 80286 or earlier CPUs,
955 * thus, they are not running FreeBSD!
956 * When there are two adapaters in the system, one becomes `primary'
957 * and the other `secondary'. The EGA adapter has a set of DIP
958 * switches on board for this information and the EGA BIOS copies
959 * it in the BIOS data area BIOSDATA_VIDEOSWITCH (40:88).
960 * The VGA BIOS has more sophisticated mechanism and has this
961 * information in BIOSDATA_DCCINDEX (40:8a), but it also maintains
962 * compatibility with the EGA BIOS by updating BIOSDATA_VIDEOSWITCH.
963 */
964
965 /*
966 * Check rtc and BIOS data area.
967 * XXX: we don't use BIOSDATA_EQUIPMENT, since it is not a dead
968 * copy of RTC_EQUIPMENT. Bits 4 and 5 of ETC_EQUIPMENT are
969 * zeros for EGA and VGA. However, the EGA/VGA BIOS sets
970 * these bits in BIOSDATA_EQUIPMENT according to the monitor
971 * type detected.
972 */
973 #ifndef VGA_NO_BIOS
974 if (*(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8)) {
975 /* EGA/VGA BIOS is present */
976 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f,
977 biosadapter);
978 } else {
979 switch ((rtcin(RTC_EQUIPMENT) >> 4) & 3) { /* bit 4 and 5 */
980 case 0:
981 /* EGA/VGA: shouldn't be happening */
982 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f,
983 biosadapter);
984 break;
985 case 1:
986 /* CGA 40x25 */
987 /* FIXME: switch to the 80x25 mode? XXX */
988 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA40];
989 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO];
990 break;
991 case 2:
992 /* CGA 80x25 */
993 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA80];
994 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO];
995 break;
996 case 3:
997 /* MDA */
998 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO];
999 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80];
1000 break;
1001 }
1002 }
1003 #else
1004 /* assume EGA/VGA? XXX */
1005 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_EGA80];
1006 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO];
1007 #endif /* VGA_NO_BIOS */
1008
1009 biosadapters = 0;
1010 if (verify_adapter(&biosadapter[V_ADP_SECONDARY]) == 0) {
1011 ++biosadapters;
1012 biosadapter[V_ADP_SECONDARY].va_flags |= V_ADP_PROBED;
1013 biosadapter[V_ADP_SECONDARY].va_mode =
1014 biosadapter[V_ADP_SECONDARY].va_initial_mode =
1015 map_bios_mode_num(biosadapter[V_ADP_SECONDARY].va_type,
1016 biosadapter[V_ADP_SECONDARY].va_flags
1017 & V_ADP_COLOR,
1018 biosadapter[V_ADP_SECONDARY].va_initial_bios_mode);
1019 } else {
1020 biosadapter[V_ADP_SECONDARY].va_type = -1;
1021 }
1022 if (verify_adapter(&biosadapter[V_ADP_PRIMARY]) == 0) {
1023 ++biosadapters;
1024 biosadapter[V_ADP_PRIMARY].va_flags |= V_ADP_PROBED;
1025 #ifndef VGA_NO_BIOS
1026 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode =
1027 readb(BIOS_PADDRTOVADDR(0x449));
1028 #else
1029 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 3; /* XXX */
1030 #endif
1031 biosadapter[V_ADP_PRIMARY].va_mode =
1032 biosadapter[V_ADP_PRIMARY].va_initial_mode =
1033 map_bios_mode_num(biosadapter[V_ADP_PRIMARY].va_type,
1034 biosadapter[V_ADP_PRIMARY].va_flags & V_ADP_COLOR,
1035 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode);
1036 } else {
1037 biosadapter[V_ADP_PRIMARY] = biosadapter[V_ADP_SECONDARY];
1038 biosadapter[V_ADP_SECONDARY].va_type = -1;
1039 }
1040 if (biosadapters == 0)
1041 return biosadapters;
1042 biosadapter[V_ADP_PRIMARY].va_unit = V_ADP_PRIMARY;
1043 biosadapter[V_ADP_SECONDARY].va_unit = V_ADP_SECONDARY;
1044
1045 #if 0 /* we don't need these... */
1046 fb_init_struct(&biosadapter[V_ADP_PRIMARY], ...);
1047 fb_init_struct(&biosadapter[V_ADP_SECONDARY], ...);
1048 #endif
1049
1050 #if notyet
1051 /*
1052 * We cannot have two video adapter of the same type; there must be
1053 * only one of color or mono adapter, or one each of them.
1054 */
1055 if (biosadapters > 1) {
1056 if (!((biosadapter[0].va_flags ^ biosadapter[1].va_flags)
1057 & V_ADP_COLOR))
1058 /* we have two mono or color adapters!! */
1059 return (biosadapters = 0);
1060 }
1061 #endif
1062
1063 /*
1064 * Ensure a zero start address. The registers are w/o
1065 * for old hardware so it's too hard to relocate the active screen
1066 * memory.
1067 * This must be done before vga_save_state() for VGA.
1068 */
1069 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 12);
1070 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0);
1071 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 13);
1072 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0);
1073
1074 /* the video mode parameter table in EGA/VGA BIOS */
1075 /* NOTE: there can be only one EGA/VGA, wheather color or mono,
1076 * recognized by the video BIOS.
1077 */
1078 if ((biosadapter[V_ADP_PRIMARY].va_type == KD_EGA) ||
1079 (biosadapter[V_ADP_PRIMARY].va_type == KD_VGA)) {
1080 adp = &biosadapter[V_ADP_PRIMARY];
1081 } else if ((biosadapter[V_ADP_SECONDARY].va_type == KD_EGA) ||
1082 (biosadapter[V_ADP_SECONDARY].va_type == KD_VGA)) {
1083 adp = &biosadapter[V_ADP_SECONDARY];
1084 } else {
1085 adp = NULL;
1086 }
1087 bzero(mode_map, sizeof(mode_map));
1088 if (adp != NULL) {
1089 if (adp->va_type == KD_VGA) {
1090 vga_save_state(adp, &adpstate, sizeof(adpstate));
1091 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE)
1092 mode_map[adp->va_initial_mode] = adpstate.regs;
1093 rows_offset = 1;
1094 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */
1095 if (video_mode_ptr == NULL) {
1096 mode_map[adp->va_initial_mode] = adpstate.regs;
1097 rows_offset = 1;
1098 } else {
1099 /* discard the table if we are not familiar with it... */
1100 map_mode_table(mode_map, video_mode_ptr, M_VGA_CG320 + 1);
1101 mp = get_mode_param(adp->va_initial_mode);
1102 if (mp != NULL)
1103 bcopy(mp, adpstate2.regs, sizeof(adpstate2.regs));
1104 switch (comp_adpregs(adpstate.regs, mp)) {
1105 case COMP_IDENTICAL:
1106 /*
1107 * OK, this parameter table looks reasonably familiar
1108 * to us...
1109 */
1110 /*
1111 * This is a kludge for Toshiba DynaBook SS433
1112 * whose BIOS video mode table entry has the actual #
1113 * of rows at the offset 1; BIOSes from other
1114 * manufacturers store the # of rows - 1 there. XXX
1115 */
1116 rows_offset = adpstate.regs[1] + 1 - mp[1];
1117 break;
1118
1119 case COMP_SIMILAR:
1120 /*
1121 * Not exactly the same, but similar enough to be
1122 * trusted. However, use the saved register values
1123 * for the initial mode and other modes which are
1124 * based on the initial mode.
1125 */
1126 mode_map[adp->va_initial_mode] = adpstate.regs;
1127 rows_offset = adpstate.regs[1] + 1 - mp[1];
1128 adpstate.regs[1] -= rows_offset - 1;
1129 break;
1130
1131 case COMP_DIFFERENT:
1132 default:
1133 /*
1134 * Don't use the paramter table in BIOS. It doesn't
1135 * look familiar to us. Video mode switching is allowed
1136 * only if the new mode is the same as or based on
1137 * the initial mode.
1138 */
1139 video_mode_ptr = NULL;
1140 bzero(mode_map, sizeof(mode_map));
1141 mode_map[adp->va_initial_mode] = adpstate.regs;
1142 rows_offset = 1;
1143 break;
1144 }
1145 }
1146 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */
1147
1148 #ifndef VGA_NO_MODE_CHANGE
1149 adp->va_flags |= V_ADP_MODECHANGE;
1150 #endif
1151 #ifndef VGA_NO_FONT_LOADING
1152 adp->va_flags |= V_ADP_FONT;
1153 #endif
1154 } else if (adp->va_type == KD_EGA) {
1155 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE)
1156 rows_offset = 1;
1157 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */
1158 if (video_mode_ptr == NULL) {
1159 rows_offset = 1;
1160 } else {
1161 map_mode_table(mode_map, video_mode_ptr, M_ENH_C80x25 + 1);
1162 /* XXX how can one validate the EGA table... */
1163 mp = get_mode_param(adp->va_initial_mode);
1164 if (mp != NULL) {
1165 adp->va_flags |= V_ADP_MODECHANGE;
1166 #ifndef VGA_NO_FONT_LOADING
1167 adp->va_flags |= V_ADP_FONT;
1168 #endif
1169 rows_offset = 1;
1170 } else {
1171 /*
1172 * This is serious. We will not be able to switch video
1173 * modes at all...
1174 */
1175 video_mode_ptr = NULL;
1176 bzero(mode_map, sizeof(mode_map));
1177 rows_offset = 1;
1178 }
1179 }
1180 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */
1181 }
1182 }
1183
1184 /* remove conflicting modes if we have more than one adapter */
1185 if (biosadapters > 0) {
1186 for (i = 0; i < biosadapters; ++i) {
1187 if (!(biosadapter[i].va_flags & V_ADP_MODECHANGE))
1188 continue;
1189 clear_mode_map(&biosadapter[i], mode_map, M_VGA_CG320 + 1,
1190 (biosadapter[i].va_flags & V_ADP_COLOR) ?
1191 V_INFO_COLOR : 0);
1192 if ((biosadapter[i].va_type == KD_VGA)
1193 || (biosadapter[i].va_type == KD_EGA)) {
1194 biosadapter[i].va_io_base =
1195 (biosadapter[i].va_flags & V_ADP_COLOR) ?
1196 IO_VGA : IO_MDA;
1197 biosadapter[i].va_io_size = 32;
1198 }
1199 }
1200 }
1201
1202 /* buffer address */
1203 vga_get_info(&biosadapter[V_ADP_PRIMARY],
1204 biosadapter[V_ADP_PRIMARY].va_initial_mode, &info);
1205 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */
1206 update_adapter_info(&biosadapter[V_ADP_PRIMARY], &info);
1207
1208 if (biosadapters > 1) {
1209 vga_get_info(&biosadapter[V_ADP_SECONDARY],
1210 biosadapter[V_ADP_SECONDARY].va_initial_mode, &info);
1211 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */
1212 update_adapter_info(&biosadapter[V_ADP_SECONDARY], &info);
1213 }
1214
1215 /*
1216 * XXX: we should verify the following values for the primary adapter...
1217 * crtc I/O port address: *(u_int16_t *)BIOS_PADDRTOVADDR(0x463);
1218 * color/mono display: (*(u_int8_t *)BIOS_PADDRTOVADDR(0x487) & 0x02)
1219 * ? 0 : V_ADP_COLOR;
1220 * columns: *(u_int8_t *)BIOS_PADDRTOVADDR(0x44a);
1221 * rows: *(u_int8_t *)BIOS_PADDRTOVADDR(0x484);
1222 * font size: *(u_int8_t *)BIOS_PADDRTOVADDR(0x485);
1223 * buffer size: *(u_int16_t *)BIOS_PADDRTOVADDR(0x44c);
1224 */
1225
1226 return biosadapters;
1227 }
1228
1229 /* set the scan line length in pixel */
1230 static int
1231 set_line_length(video_adapter_t *adp, int pixel)
1232 {
1233 u_char *mp;
1234 int ppw; /* pixels per word */
1235 int bpl; /* bytes per line */
1236 int count;
1237
1238 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA))
1239 return ENODEV;
1240 mp = get_mode_param(adp->va_mode);
1241 if (mp == NULL)
1242 return EINVAL;
1243
1244 switch (adp->va_info.vi_mem_model) {
1245 case V_INFO_MM_PLANAR:
1246 ppw = 16/(adp->va_info.vi_depth/adp->va_info.vi_planes);
1247 count = (pixel + ppw - 1)/ppw/2;
1248 bpl = ((pixel + ppw - 1)/ppw/2)*4;
1249 break;
1250 case V_INFO_MM_PACKED:
1251 count = (pixel + 7)/8;
1252 bpl = ((pixel + 7)/8)*8;
1253 break;
1254 case V_INFO_MM_TEXT:
1255 count = (pixel + 7)/8; /* columns */
1256 bpl = (pixel + 7)/8; /* columns */
1257 break;
1258 default:
1259 return ENODEV;
1260 }
1261
1262 if (mp[10 + 0x17] & 0x40) /* CRTC mode control reg */
1263 count *= 2; /* byte mode */
1264 outb(adp->va_crtc_addr, 0x13);
1265 outb(adp->va_crtc_addr + 1, count);
1266 adp->va_line_width = bpl;
1267
1268 return 0;
1269 }
1270
1271 static int
1272 set_display_start(video_adapter_t *adp, int x, int y)
1273 {
1274 int off; /* byte offset (graphics mode)/word offset (text mode) */
1275 int poff; /* pixel offset */
1276 int roff; /* row offset */
1277 int ppb; /* pixels per byte */
1278
1279 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA))
1280 x &= ~7;
1281 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) {
1282 ppb = 8/(adp->va_info.vi_depth/adp->va_info.vi_planes);
1283 off = y*adp->va_line_width + x/ppb;
1284 roff = 0;
1285 poff = x%ppb;
1286 } else {
1287 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) {
1288 outb(TSIDX, 1);
1289 if (inb(TSREG) & 1)
1290 ppb = 9;
1291 else
1292 ppb = 8;
1293 } else {
1294 ppb = 8;
1295 }
1296 off = y/adp->va_info.vi_cheight*adp->va_line_width + x/ppb;
1297 roff = y%adp->va_info.vi_cheight;
1298 /* FIXME: is this correct? XXX */
1299 if (ppb == 8)
1300 poff = x%ppb;
1301 else
1302 poff = (x + 8)%ppb;
1303 }
1304
1305 /* start address */
1306 outb(adp->va_crtc_addr, 0xc); /* high */
1307 outb(adp->va_crtc_addr + 1, off >> 8);
1308 outb(adp->va_crtc_addr, 0xd); /* low */
1309 outb(adp->va_crtc_addr + 1, off & 0xff);
1310
1311 /* horizontal pel pan */
1312 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) {
1313 inb(adp->va_crtc_addr + 6);
1314 outb(ATC, 0x13 | 0x20);
1315 outb(ATC, poff);
1316 inb(adp->va_crtc_addr + 6);
1317 outb(ATC, 0x20);
1318 }
1319
1320 /* preset raw scan */
1321 outb(adp->va_crtc_addr, 8);
1322 outb(adp->va_crtc_addr + 1, roff);
1323
1324 adp->va_disp_start.x = x;
1325 adp->va_disp_start.y = y;
1326 return 0;
1327 }
1328
1329 #ifndef VGA_NO_MODE_CHANGE
1330 #if defined(__i386__) || defined(__amd64__) /* XXX */
1331 static void
1332 fill(int val, void *d, size_t size)
1333 {
1334 u_char *p = d;
1335
1336 while (size-- > 0)
1337 *p++ = val;
1338 }
1339 #endif /* __i386__ */
1340
1341 static void
1342 filll_io(int val, vm_offset_t d, size_t size)
1343 {
1344 while (size-- > 0) {
1345 writel(d, val);
1346 d += sizeof(u_int32_t);
1347 }
1348 }
1349 #endif /* !VGA_NO_MODE_CHANGE */
1350
1351 /* entry points */
1352
1353 #if 0
1354 static int
1355 vga_nop(void)
1356 {
1357 return 0;
1358 }
1359 #endif
1360
1361 static int
1362 vga_error(void)
1363 {
1364 return ENODEV;
1365 }
1366
1367 static int
1368 vga_probe(int unit, video_adapter_t **adpp, void *arg, int flags)
1369 {
1370 probe_adapters();
1371 if (unit >= biosadapters)
1372 return ENXIO;
1373
1374 *adpp = &biosadapter[unit];
1375
1376 return 0;
1377 }
1378
1379 static int
1380 vga_init(int unit, video_adapter_t *adp, int flags)
1381 {
1382 if ((unit >= biosadapters) || (adp == NULL) || !probe_done(adp))
1383 return ENXIO;
1384
1385 if (!init_done(adp)) {
1386 /* nothing to do really... */
1387 adp->va_flags |= V_ADP_INITIALIZED;
1388 }
1389
1390 if (!config_done(adp)) {
1391 if (vid_register(adp) < 0)
1392 return ENXIO;
1393 adp->va_flags |= V_ADP_REGISTERED;
1394 }
1395 if (vga_sub_configure != NULL)
1396 (*vga_sub_configure)(0);
1397
1398 return 0;
1399 }
1400
1401 /*
1402 * get_info():
1403 * Return the video_info structure of the requested video mode.
1404 *
1405 * all adapters
1406 */
1407 static int
1408 vga_get_info(video_adapter_t *adp, int mode, video_info_t *info)
1409 {
1410 int i;
1411
1412 if (!vga_init_done)
1413 return ENXIO;
1414
1415 mode = map_gen_mode_num(adp->va_type, adp->va_flags & V_ADP_COLOR, mode);
1416 #ifndef VGA_NO_MODE_CHANGE
1417 if (adp->va_flags & V_ADP_MODECHANGE) {
1418 /*
1419 * If the parameter table entry for this mode is not found,
1420 * the mode is not supported...
1421 */
1422 if (get_mode_param(mode) == NULL)
1423 return EINVAL;
1424 } else
1425 #endif /* VGA_NO_MODE_CHANGE */
1426 {
1427 /*
1428 * Even if we don't support video mode switching on this adapter,
1429 * the information on the initial (thus current) video mode
1430 * should be made available.
1431 */
1432 if (mode != adp->va_initial_mode)
1433 return EINVAL;
1434 }
1435
1436 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) {
1437 if (bios_vmode[i].vi_mode == NA)
1438 continue;
1439 if (mode == bios_vmode[i].vi_mode) {
1440 *info = bios_vmode[i];
1441 /* XXX */
1442 info->vi_buffer_size = info->vi_window_size*info->vi_planes;
1443 return 0;
1444 }
1445 }
1446 return EINVAL;
1447 }
1448
1449 /*
1450 * query_mode():
1451 * Find a video mode matching the requested parameters.
1452 * Fields filled with 0 are considered "don't care" fields and
1453 * match any modes.
1454 *
1455 * all adapters
1456 */
1457 static int
1458 vga_query_mode(video_adapter_t *adp, video_info_t *info)
1459 {
1460 int i;
1461
1462 if (!vga_init_done)
1463 return ENXIO;
1464
1465 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) {
1466 if (bios_vmode[i].vi_mode == NA)
1467 continue;
1468
1469 if ((info->vi_width != 0)
1470 && (info->vi_width != bios_vmode[i].vi_width))
1471 continue;
1472 if ((info->vi_height != 0)
1473 && (info->vi_height != bios_vmode[i].vi_height))
1474 continue;
1475 if ((info->vi_cwidth != 0)
1476 && (info->vi_cwidth != bios_vmode[i].vi_cwidth))
1477 continue;
1478 if ((info->vi_cheight != 0)
1479 && (info->vi_cheight != bios_vmode[i].vi_cheight))
1480 continue;
1481 if ((info->vi_depth != 0)
1482 && (info->vi_depth != bios_vmode[i].vi_depth))
1483 continue;
1484 if ((info->vi_planes != 0)
1485 && (info->vi_planes != bios_vmode[i].vi_planes))
1486 continue;
1487 /* XXX: should check pixel format, memory model */
1488 if ((info->vi_flags != 0)
1489 && (info->vi_flags != bios_vmode[i].vi_flags))
1490 continue;
1491
1492 /* verify if this mode is supported on this adapter */
1493 if (vga_get_info(adp, bios_vmode[i].vi_mode, info))
1494 continue;
1495 return 0;
1496 }
1497 return ENODEV;
1498 }
1499
1500 /*
1501 * set_mode():
1502 * Change the video mode.
1503 *
1504 * EGA/VGA
1505 */
1506
1507 #ifndef VGA_NO_MODE_CHANGE
1508 #ifdef VGA_WIDTH90
1509 static void
1510 set_width90(adp_state_t *params)
1511 {
1512 /*
1513 * Based on code submitted by Kelly Yancey (kbyanc@freedomnet.com)
1514 * and alexv@sui.gda.itesm.mx.
1515 */
1516 params->regs[5] |= 1; /* toggle 8 pixel wide fonts */
1517 params->regs[10+0x0] = 0x6b;
1518 params->regs[10+0x1] = 0x59;
1519 params->regs[10+0x2] = 0x5a;
1520 params->regs[10+0x3] = 0x8e;
1521 params->regs[10+0x4] = 0x5e;
1522 params->regs[10+0x5] = 0x8a;
1523 params->regs[10+0x13] = 45;
1524 params->regs[35+0x13] = 0;
1525 }
1526 #endif /* VGA_WIDTH90 */
1527 #endif /* !VGA_NO_MODE_CHANGE */
1528
1529 static int
1530 vga_set_mode(video_adapter_t *adp, int mode)
1531 {
1532 #ifndef VGA_NO_MODE_CHANGE
1533 video_info_t info;
1534 adp_state_t params;
1535
1536 prologue(adp, V_ADP_MODECHANGE, ENODEV);
1537
1538 mode = map_gen_mode_num(adp->va_type,
1539 adp->va_flags & V_ADP_COLOR, mode);
1540 if (vga_get_info(adp, mode, &info))
1541 return EINVAL;
1542
1543 #if VGA_DEBUG > 1
1544 printf("vga_set_mode(): setting mode %d\n", mode);
1545 #endif
1546
1547 params.sig = V_STATE_SIG;
1548 bcopy(get_mode_param(mode), params.regs, sizeof(params.regs));
1549
1550 switch (mode) {
1551 #ifdef VGA_WIDTH90
1552 case M_VGA_C90x60: case M_VGA_M90x60:
1553 set_width90(¶ms);
1554 /* FALLTHROUGH */
1555 #endif
1556 case M_VGA_C80x60: case M_VGA_M80x60:
1557 params.regs[2] = 0x08;
1558 params.regs[19] = 0x47;
1559 goto special_480l;
1560
1561 #ifdef VGA_WIDTH90
1562 case M_VGA_C90x30: case M_VGA_M90x30:
1563 set_width90(¶ms);
1564 /* FALLTHROUGH */
1565 #endif
1566 case M_VGA_C80x30: case M_VGA_M80x30:
1567 params.regs[19] = 0x4f;
1568 special_480l:
1569 params.regs[9] |= 0xc0;
1570 params.regs[16] = 0x08;
1571 params.regs[17] = 0x3e;
1572 params.regs[26] = 0xea;
1573 params.regs[28] = 0xdf;
1574 params.regs[31] = 0xe7;
1575 params.regs[32] = 0x04;
1576 goto setup_mode;
1577
1578 #ifdef VGA_WIDTH90
1579 case M_VGA_C90x43: case M_VGA_M90x43:
1580 set_width90(¶ms);
1581 /* FALLTHROUGH */
1582 #endif
1583 case M_ENH_C80x43: case M_ENH_B80x43:
1584 params.regs[28] = 87;
1585 goto special_80x50;
1586
1587 #ifdef VGA_WIDTH90
1588 case M_VGA_C90x50: case M_VGA_M90x50:
1589 set_width90(¶ms);
1590 /* FALLTHROUGH */
1591 #endif
1592 case M_VGA_C80x50: case M_VGA_M80x50:
1593 special_80x50:
1594 params.regs[2] = 8;
1595 params.regs[19] = 7;
1596 goto setup_mode;
1597
1598 #ifdef VGA_WIDTH90
1599 case M_VGA_C90x25: case M_VGA_M90x25:
1600 set_width90(¶ms);
1601 /* FALLTHROUGH */
1602 #endif
1603 case M_VGA_C40x25: case M_VGA_C80x25:
1604 case M_VGA_M80x25:
1605 case M_B40x25: case M_C40x25:
1606 case M_B80x25: case M_C80x25:
1607 case M_ENH_B40x25: case M_ENH_C40x25:
1608 case M_ENH_B80x25: case M_ENH_C80x25:
1609 case M_EGAMONO80x25:
1610
1611 setup_mode:
1612 vga_load_state(adp, ¶ms);
1613 break;
1614
1615 case M_VGA_MODEX:
1616 /* "unchain" the VGA mode */
1617 params.regs[5-1+0x04] &= 0xf7;
1618 params.regs[5-1+0x04] |= 0x04;
1619 /* turn off doubleword mode */
1620 params.regs[10+0x14] &= 0xbf;
1621 /* turn off word addressing */
1622 params.regs[10+0x17] |= 0x40;
1623 /* set logical screen width */
1624 params.regs[10+0x13] = 80;
1625 /* set 240 lines */
1626 params.regs[10+0x11] = 0x2c;
1627 params.regs[10+0x06] = 0x0d;
1628 params.regs[10+0x07] = 0x3e;
1629 params.regs[10+0x10] = 0xea;
1630 params.regs[10+0x11] = 0xac;
1631 params.regs[10+0x12] = 0xdf;
1632 params.regs[10+0x15] = 0xe7;
1633 params.regs[10+0x16] = 0x06;
1634 /* set vertical sync polarity to reflect aspect ratio */
1635 params.regs[9] = 0xe3;
1636 goto setup_grmode;
1637
1638 case M_BG320: case M_CG320: case M_BG640:
1639 case M_CG320_D: case M_CG640_E:
1640 case M_CG640x350: case M_ENH_CG640:
1641 case M_BG640x480: case M_CG640x480: case M_VGA_CG320:
1642
1643 setup_grmode:
1644 vga_load_state(adp, ¶ms);
1645 break;
1646
1647 default:
1648 return EINVAL;
1649 }
1650
1651 adp->va_mode = mode;
1652 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */
1653 update_adapter_info(adp, &info);
1654
1655 /* move hardware cursor out of the way */
1656 (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1);
1657
1658 return 0;
1659 #else /* VGA_NO_MODE_CHANGE */
1660 return ENODEV;
1661 #endif /* VGA_NO_MODE_CHANGE */
1662 }
1663
1664 #ifndef VGA_NO_FONT_LOADING
1665
1666 static void
1667 set_font_mode(video_adapter_t *adp, u_char *buf)
1668 {
1669 u_char *mp;
1670 int s;
1671
1672 s = splhigh();
1673
1674 /* save register values */
1675 if (adp->va_type == KD_VGA) {
1676 outb(TSIDX, 0x02); buf[0] = inb(TSREG);
1677 outb(TSIDX, 0x04); buf[1] = inb(TSREG);
1678 outb(GDCIDX, 0x04); buf[2] = inb(GDCREG);
1679 outb(GDCIDX, 0x05); buf[3] = inb(GDCREG);
1680 outb(GDCIDX, 0x06); buf[4] = inb(GDCREG);
1681 inb(adp->va_crtc_addr + 6);
1682 outb(ATC, 0x10); buf[5] = inb(ATC + 1);
1683 } else /* if (adp->va_type == KD_EGA) */ {
1684 /*
1685 * EGA cannot be read; copy parameters from the mode parameter
1686 * table.
1687 */
1688 mp = get_mode_param(adp->va_mode);
1689 buf[0] = mp[5 + 0x02 - 1];
1690 buf[1] = mp[5 + 0x04 - 1];
1691 buf[2] = mp[55 + 0x04];
1692 buf[3] = mp[55 + 0x05];
1693 buf[4] = mp[55 + 0x06];
1694 buf[5] = mp[35 + 0x10];
1695 }
1696
1697 /* setup vga for loading fonts */
1698 inb(adp->va_crtc_addr + 6); /* reset flip-flop */
1699 outb(ATC, 0x10); outb(ATC, buf[5] & ~0x01);
1700 inb(adp->va_crtc_addr + 6); /* reset flip-flop */
1701 outb(ATC, 0x20); /* enable palette */
1702
1703 #if VGA_SLOW_IOACCESS
1704 #ifdef VGA_ALT_SEQACCESS
1705 outb(TSIDX, 0x00); outb(TSREG, 0x01);
1706 #endif
1707 outb(TSIDX, 0x02); outb(TSREG, 0x04);
1708 outb(TSIDX, 0x04); outb(TSREG, 0x07);
1709 #ifdef VGA_ALT_SEQACCESS
1710 outb(TSIDX, 0x00); outb(TSREG, 0x03);
1711 #endif
1712 outb(GDCIDX, 0x04); outb(GDCREG, 0x02);
1713 outb(GDCIDX, 0x05); outb(GDCREG, 0x00);
1714 outb(GDCIDX, 0x06); outb(GDCREG, 0x04);
1715 #else /* VGA_SLOW_IOACCESS */
1716 #ifdef VGA_ALT_SEQACCESS
1717 outw(TSIDX, 0x0100);
1718 #endif
1719 outw(TSIDX, 0x0402);
1720 outw(TSIDX, 0x0704);
1721 #ifdef VGA_ALT_SEQACCESS
1722 outw(TSIDX, 0x0300);
1723 #endif
1724 outw(GDCIDX, 0x0204);
1725 outw(GDCIDX, 0x0005);
1726 outw(GDCIDX, 0x0406); /* addr = a0000, 64kb */
1727 #endif /* VGA_SLOW_IOACCESS */
1728
1729 splx(s);
1730 }
1731
1732 static void
1733 set_normal_mode(video_adapter_t *adp, u_char *buf)
1734 {
1735 int s;
1736
1737 s = splhigh();
1738
1739 /* setup vga for normal operation mode again */
1740 inb(adp->va_crtc_addr + 6); /* reset flip-flop */
1741 outb(ATC, 0x10); outb(ATC, buf[5]);
1742 inb(adp->va_crtc_addr + 6); /* reset flip-flop */
1743 outb(ATC, 0x20); /* enable palette */
1744
1745 #if VGA_SLOW_IOACCESS
1746 #ifdef VGA_ALT_SEQACCESS
1747 outb(TSIDX, 0x00); outb(TSREG, 0x01);
1748 #endif
1749 outb(TSIDX, 0x02); outb(TSREG, buf[0]);
1750 outb(TSIDX, 0x04); outb(TSREG, buf[1]);
1751 #ifdef VGA_ALT_SEQACCESS
1752 outb(TSIDX, 0x00); outb(TSREG, 0x03);
1753 #endif
1754 outb(GDCIDX, 0x04); outb(GDCREG, buf[2]);
1755 outb(GDCIDX, 0x05); outb(GDCREG, buf[3]);
1756 if (adp->va_crtc_addr == MONO_CRTC) {
1757 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x08);
1758 } else {
1759 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x0c);
1760 }
1761 #else /* VGA_SLOW_IOACCESS */
1762 #ifdef VGA_ALT_SEQACCESS
1763 outw(TSIDX, 0x0100);
1764 #endif
1765 outw(TSIDX, 0x0002 | (buf[0] << 8));
1766 outw(TSIDX, 0x0004 | (buf[1] << 8));
1767 #ifdef VGA_ALT_SEQACCESS
1768 outw(TSIDX, 0x0300);
1769 #endif
1770 outw(GDCIDX, 0x0004 | (buf[2] << 8));
1771 outw(GDCIDX, 0x0005 | (buf[3] << 8));
1772 if (adp->va_crtc_addr == MONO_CRTC)
1773 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x08)<<8));
1774 else
1775 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x0c)<<8));
1776 #endif /* VGA_SLOW_IOACCESS */
1777
1778 splx(s);
1779 }
1780
1781 #endif /* VGA_NO_FONT_LOADING */
1782
1783 /*
1784 * save_font():
1785 * Read the font data in the requested font page from the video adapter.
1786 *
1787 * EGA/VGA
1788 */
1789 static int
1790 vga_save_font(video_adapter_t *adp, int page, int fontsize, int fontwidth,
1791 u_char *data, int ch, int count)
1792 {
1793 #ifndef VGA_NO_FONT_LOADING
1794 u_char buf[PARAM_BUFSIZE];
1795 vm_offset_t segment;
1796 int c;
1797 #ifdef VGA_ALT_SEQACCESS
1798 int s;
1799 u_char val = 0;
1800 #endif
1801
1802 prologue(adp, V_ADP_FONT, ENODEV);
1803
1804 if (fontsize < 14) {
1805 /* FONT_8 */
1806 fontsize = 8;
1807 } else if (fontsize >= 32) {
1808 fontsize = 32;
1809 } else if (fontsize >= 16) {
1810 /* FONT_16 */
1811 fontsize = 16;
1812 } else {
1813 /* FONT_14 */
1814 fontsize = 14;
1815 }
1816
1817 if (page < 0 || page >= 8 || fontwidth != 8)
1818 return EINVAL;
1819 segment = FONT_BUF + 0x4000*page;
1820 if (page > 3)
1821 segment -= 0xe000;
1822
1823 #ifdef VGA_ALT_SEQACCESS
1824 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */
1825 s = splhigh();
1826 outb(TSIDX, 0x00); outb(TSREG, 0x01);
1827 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */
1828 outb(TSIDX, 0x01); outb(TSREG, val | 0x20);
1829 outb(TSIDX, 0x00); outb(TSREG, 0x03);
1830 splx(s);
1831 }
1832 #endif
1833
1834 set_font_mode(adp, buf);
1835 if (fontsize == 32) {
1836 bcopy_fromio((uintptr_t)segment + ch*32, data, fontsize*count);
1837 } else {
1838 for (c = ch; count > 0; ++c, --count) {
1839 bcopy_fromio((uintptr_t)segment + c*32, data, fontsize);
1840 data += fontsize;
1841 }
1842 }
1843 set_normal_mode(adp, buf);
1844
1845 #ifdef VGA_ALT_SEQACCESS
1846 if (adp->va_type == KD_VGA) {
1847 s = splhigh();
1848 outb(TSIDX, 0x00); outb(TSREG, 0x01);
1849 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */
1850 outb(TSIDX, 0x00); outb(TSREG, 0x03);
1851 splx(s);
1852 }
1853 #endif
1854
1855 return 0;
1856 #else /* VGA_NO_FONT_LOADING */
1857 return ENODEV;
1858 #endif /* VGA_NO_FONT_LOADING */
1859 }
1860
1861 /*
1862 * load_font():
1863 * Set the font data in the requested font page.
1864 * NOTE: it appears that some recent video adapters do not support
1865 * the font page other than 0... XXX
1866 *
1867 * EGA/VGA
1868 */
1869 static int
1870 vga_load_font(video_adapter_t *adp, int page, int fontsize, int fontwidth,
1871 u_char *data, int ch, int count)
1872 {
1873 #ifndef VGA_NO_FONT_LOADING
1874 u_char buf[PARAM_BUFSIZE];
1875 vm_offset_t segment;
1876 int c;
1877 #ifdef VGA_ALT_SEQACCESS
1878 int s;
1879 u_char val = 0;
1880 #endif
1881
1882 prologue(adp, V_ADP_FONT, ENODEV);
1883
1884 if (fontsize < 14) {
1885 /* FONT_8 */
1886 fontsize = 8;
1887 } else if (fontsize >= 32) {
1888 fontsize = 32;
1889 } else if (fontsize >= 16) {
1890 /* FONT_16 */
1891 fontsize = 16;
1892 } else {
1893 /* FONT_14 */
1894 fontsize = 14;
1895 }
1896
1897 if (page < 0 || page >= 8 || fontwidth != 8)
1898 return EINVAL;
1899 segment = FONT_BUF + 0x4000*page;
1900 if (page > 3)
1901 segment -= 0xe000;
1902
1903 #ifdef VGA_ALT_SEQACCESS
1904 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */
1905 s = splhigh();
1906 outb(TSIDX, 0x00); outb(TSREG, 0x01);
1907 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */
1908 outb(TSIDX, 0x01); outb(TSREG, val | 0x20);
1909 outb(TSIDX, 0x00); outb(TSREG, 0x03);
1910 splx(s);
1911 }
1912 #endif
1913
1914 set_font_mode(adp, buf);
1915 if (fontsize == 32) {
1916 bcopy_toio(data, (uintptr_t)segment + ch*32, fontsize*count);
1917 } else {
1918 for (c = ch; count > 0; ++c, --count) {
1919 bcopy_toio(data, (uintptr_t)segment + c*32, fontsize);
1920 data += fontsize;
1921 }
1922 }
1923 set_normal_mode(adp, buf);
1924
1925 #ifdef VGA_ALT_SEQACCESS
1926 if (adp->va_type == KD_VGA) {
1927 s = splhigh();
1928 outb(TSIDX, 0x00); outb(TSREG, 0x01);
1929 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */
1930 outb(TSIDX, 0x00); outb(TSREG, 0x03);
1931 splx(s);
1932 }
1933 #endif
1934
1935 return 0;
1936 #else /* VGA_NO_FONT_LOADING */
1937 return ENODEV;
1938 #endif /* VGA_NO_FONT_LOADING */
1939 }
1940
1941 /*
1942 * show_font():
1943 * Activate the requested font page.
1944 * NOTE: it appears that some recent video adapters do not support
1945 * the font page other than 0... XXX
1946 *
1947 * EGA/VGA
1948 */
1949 static int
1950 vga_show_font(video_adapter_t *adp, int page)
1951 {
1952 #ifndef VGA_NO_FONT_LOADING
1953 static u_char cg[] = { 0x00, 0x05, 0x0a, 0x0f, 0x30, 0x35, 0x3a, 0x3f };
1954 int s;
1955
1956 prologue(adp, V_ADP_FONT, ENODEV);
1957 if (page < 0 || page >= 8)
1958 return EINVAL;
1959
1960 s = splhigh();
1961 outb(TSIDX, 0x03); outb(TSREG, cg[page]);
1962 splx(s);
1963
1964 return 0;
1965 #else /* VGA_NO_FONT_LOADING */
1966 return ENODEV;
1967 #endif /* VGA_NO_FONT_LOADING */
1968 }
1969
1970 /*
1971 * save_palette():
1972 * Read DAC values. The values have expressed in 8 bits.
1973 *
1974 * VGA
1975 */
1976 static int
1977 vga_save_palette(video_adapter_t *adp, u_char *palette)
1978 {
1979 int i;
1980
1981 prologue(adp, V_ADP_PALETTE, ENODEV);
1982
1983 /*
1984 * We store 8 bit values in the palette buffer, while the standard
1985 * VGA has 6 bit DAC .
1986 */
1987 outb(PALRADR, 0x00);
1988 for (i = 0; i < 256*3; ++i)
1989 palette[i] = inb(PALDATA) << 2;
1990 inb(adp->va_crtc_addr + 6); /* reset flip/flop */
1991 return 0;
1992 }
1993
1994 static int
1995 vga_save_palette2(video_adapter_t *adp, int base, int count,
1996 u_char *r, u_char *g, u_char *b)
1997 {
1998 int i;
1999
2000 prologue(adp, V_ADP_PALETTE, ENODEV);
2001
2002 outb(PALRADR, base);
2003 for (i = 0; i < count; ++i) {
2004 r[i] = inb(PALDATA) << 2;
2005 g[i] = inb(PALDATA) << 2;
2006 b[i] = inb(PALDATA) << 2;
2007 }
2008 inb(adp->va_crtc_addr + 6); /* reset flip/flop */
2009 return 0;
2010 }
2011
2012 /*
2013 * load_palette():
2014 * Set DAC values.
2015 *
2016 * VGA
2017 */
2018 static int
2019 vga_load_palette(video_adapter_t *adp, u_char *palette)
2020 {
2021 int i;
2022
2023 prologue(adp, V_ADP_PALETTE, ENODEV);
2024
2025 outb(PIXMASK, 0xff); /* no pixelmask */
2026 outb(PALWADR, 0x00);
2027 for (i = 0; i < 256*3; ++i)
2028 outb(PALDATA, palette[i] >> 2);
2029 inb(adp->va_crtc_addr + 6); /* reset flip/flop */
2030 outb(ATC, 0x20); /* enable palette */
2031 return 0;
2032 }
2033
2034 static int
2035 vga_load_palette2(video_adapter_t *adp, int base, int count,
2036 u_char *r, u_char *g, u_char *b)
2037 {
2038 int i;
2039
2040 prologue(adp, V_ADP_PALETTE, ENODEV);
2041
2042 outb(PIXMASK, 0xff); /* no pixelmask */
2043 outb(PALWADR, base);
2044 for (i = 0; i < count; ++i) {
2045 outb(PALDATA, r[i] >> 2);
2046 outb(PALDATA, g[i] >> 2);
2047 outb(PALDATA, b[i] >> 2);
2048 }
2049 inb(adp->va_crtc_addr + 6); /* reset flip/flop */
2050 outb(ATC, 0x20); /* enable palette */
2051 return 0;
2052 }
2053
2054 /*
2055 * set_border():
2056 * Change the border color.
2057 *
2058 * CGA/EGA/VGA
2059 */
2060 static int
2061 vga_set_border(video_adapter_t *adp, int color)
2062 {
2063 prologue(adp, V_ADP_BORDER, ENODEV);
2064
2065 switch (adp->va_type) {
2066 case KD_EGA:
2067 case KD_VGA:
2068 inb(adp->va_crtc_addr + 6); /* reset flip-flop */
2069 outb(ATC, 0x31); outb(ATC, color & 0xff);
2070 break;
2071 case KD_CGA:
2072 outb(adp->va_crtc_addr + 5, color & 0x0f); /* color select register */
2073 break;
2074 case KD_MONO:
2075 case KD_HERCULES:
2076 default:
2077 break;
2078 }
2079 return 0;
2080 }
2081
2082 /*
2083 * save_state():
2084 * Read video register values.
2085 * NOTE: this function only reads the standard EGA/VGA registers.
2086 * any extra/extended registers of SVGA adapters are not saved.
2087 *
2088 * VGA
2089 */
2090 static int
2091 vga_save_state(video_adapter_t *adp, void *p, size_t size)
2092 {
2093 video_info_t info;
2094 u_char *buf;
2095 int crtc_addr;
2096 int i, j;
2097 int s;
2098
2099 if (size == 0) {
2100 /* return the required buffer size */
2101 prologue(adp, V_ADP_STATESAVE, 0);
2102 return sizeof(adp_state_t);
2103 } else {
2104 prologue(adp, V_ADP_STATESAVE, ENODEV);
2105 if (size < sizeof(adp_state_t))
2106 return EINVAL;
2107 }
2108
2109 ((adp_state_t *)p)->sig = V_STATE_SIG;
2110 buf = ((adp_state_t *)p)->regs;
2111 bzero(buf, V_MODE_PARAM_SIZE);
2112 crtc_addr = adp->va_crtc_addr;
2113
2114 s = splhigh();
2115
2116 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */
2117 for (i = 0, j = 5; i < 4; i++) {
2118 outb(TSIDX, i + 1);
2119 buf[j++] = inb(TSREG);
2120 }
2121 buf[9] = inb(MISC + 10); /* dot-clock */
2122 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */
2123
2124 for (i = 0, j = 10; i < 25; i++) { /* crtc */
2125 outb(crtc_addr, i);
2126 buf[j++] = inb(crtc_addr + 1);
2127 }
2128 for (i = 0, j = 35; i < 20; i++) { /* attribute ctrl */
2129 inb(crtc_addr + 6); /* reset flip-flop */
2130 outb(ATC, i);
2131 buf[j++] = inb(ATC + 1);
2132 }
2133 for (i = 0, j = 55; i < 9; i++) { /* graph data ctrl */
2134 outb(GDCIDX, i);
2135 buf[j++] = inb(GDCREG);
2136 }
2137 inb(crtc_addr + 6); /* reset flip-flop */
2138 outb(ATC, 0x20); /* enable palette */
2139
2140 splx(s);
2141
2142 #if 1
2143 if (vga_get_info(adp, adp->va_mode, &info) == 0) {
2144 if (info.vi_flags & V_INFO_GRAPHICS) {
2145 buf[0] = info.vi_width/info.vi_cwidth; /* COLS */
2146 buf[1] = info.vi_height/info.vi_cheight - 1; /* ROWS */
2147 } else {
2148 buf[0] = info.vi_width; /* COLS */
2149 buf[1] = info.vi_height - 1; /* ROWS */
2150 }
2151 buf[2] = info.vi_cheight; /* POINTS */
2152 } else {
2153 /* XXX: shouldn't be happening... */
2154 printf("vga%d: %s: failed to obtain mode info. (vga_save_state())\n",
2155 adp->va_unit, adp->va_name);
2156 }
2157 #else
2158 buf[0] = readb(BIOS_PADDRTOVADDR(0x44a)); /* COLS */
2159 buf[1] = readb(BIOS_PADDRTOVADDR(0x484)); /* ROWS */
2160 buf[2] = readb(BIOS_PADDRTOVADDR(0x485)); /* POINTS */
2161 buf[3] = readb(BIOS_PADDRTOVADDR(0x44c));
2162 buf[4] = readb(BIOS_PADDRTOVADDR(0x44d));
2163 #endif
2164
2165 return 0;
2166 }
2167
2168 /*
2169 * load_state():
2170 * Set video registers at once.
2171 * NOTE: this function only updates the standard EGA/VGA registers.
2172 * any extra/extended registers of SVGA adapters are not changed.
2173 *
2174 * EGA/VGA
2175 */
2176 static int
2177 vga_load_state(video_adapter_t *adp, void *p)
2178 {
2179 u_char *buf;
2180 int crtc_addr;
2181 int s;
2182 int i;
2183
2184 prologue(adp, V_ADP_STATELOAD, ENODEV);
2185 if (((adp_state_t *)p)->sig != V_STATE_SIG)
2186 return EINVAL;
2187
2188 buf = ((adp_state_t *)p)->regs;
2189 crtc_addr = adp->va_crtc_addr;
2190
2191 #if VGA_DEBUG > 1
2192 dump_buffer(buf, V_MODE_PARAM_SIZE);
2193 #endif
2194
2195 s = splhigh();
2196
2197 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */
2198 for (i = 0; i < 4; ++i) { /* program sequencer */
2199 outb(TSIDX, i + 1);
2200 outb(TSREG, buf[i + 5]);
2201 }
2202 outb(MISC, buf[9]); /* set dot-clock */
2203 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */
2204 outb(crtc_addr, 0x11);
2205 outb(crtc_addr + 1, inb(crtc_addr + 1) & 0x7F);
2206 for (i = 0; i < 25; ++i) { /* program crtc */
2207 outb(crtc_addr, i);
2208 outb(crtc_addr + 1, buf[i + 10]);
2209 }
2210 inb(crtc_addr+6); /* reset flip-flop */
2211 for (i = 0; i < 20; ++i) { /* program attribute ctrl */
2212 outb(ATC, i);
2213 outb(ATC, buf[i + 35]);
2214 }
2215 for (i = 0; i < 9; ++i) { /* program graph data ctrl */
2216 outb(GDCIDX, i);
2217 outb(GDCREG, buf[i + 55]);
2218 }
2219 inb(crtc_addr + 6); /* reset flip-flop */
2220 outb(ATC, 0x20); /* enable palette */
2221
2222 #if notyet /* a temporary workaround for kernel panic, XXX */
2223 #ifndef VGA_NO_BIOS
2224 if (adp->va_unit == V_ADP_PRIMARY) {
2225 writeb(BIOS_PADDRTOVADDR(0x44a), buf[0]); /* COLS */
2226 writeb(BIOS_PADDRTOVADDR(0x484), buf[1] + rows_offset - 1); /* ROWS */
2227 writeb(BIOS_PADDRTOVADDR(0x485), buf[2]); /* POINTS */
2228 #if 0
2229 writeb(BIOS_PADDRTOVADDR(0x44c), buf[3]);
2230 writeb(BIOS_PADDRTOVADDR(0x44d), buf[4]);
2231 #endif
2232 }
2233 #endif /* VGA_NO_BIOS */
2234 #endif /* notyet */
2235
2236 splx(s);
2237 return 0;
2238 }
2239
2240 /*
2241 * set_origin():
2242 * Change the origin (window mapping) of the banked frame buffer.
2243 */
2244 static int
2245 vga_set_origin(video_adapter_t *adp, off_t offset)
2246 {
2247 /*
2248 * The standard video modes do not require window mapping;
2249 * always return error.
2250 */
2251 return ENODEV;
2252 }
2253
2254 /*
2255 * read_hw_cursor():
2256 * Read the position of the hardware text cursor.
2257 *
2258 * all adapters
2259 */
2260 static int
2261 vga_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
2262 {
2263 u_int16_t off;
2264 int s;
2265
2266 if (!vga_init_done)
2267 return ENXIO;
2268
2269 if (adp->va_info.vi_flags & V_INFO_GRAPHICS)
2270 return ENODEV;
2271
2272 s = spltty();
2273 outb(adp->va_crtc_addr, 14);
2274 off = inb(adp->va_crtc_addr + 1);
2275 outb(adp->va_crtc_addr, 15);
2276 off = (off << 8) | inb(adp->va_crtc_addr + 1);
2277 splx(s);
2278
2279 *row = off / adp->va_info.vi_width;
2280 *col = off % adp->va_info.vi_width;
2281
2282 return 0;
2283 }
2284
2285 /*
2286 * set_hw_cursor():
2287 * Move the hardware text cursor. If col and row are both -1,
2288 * the cursor won't be shown.
2289 *
2290 * all adapters
2291 */
2292 static int
2293 vga_set_hw_cursor(video_adapter_t *adp, int col, int row)
2294 {
2295 u_int16_t off;
2296 int s;
2297
2298 if (!vga_init_done)
2299 return ENXIO;
2300
2301 if ((col == -1) && (row == -1)) {
2302 off = -1;
2303 } else {
2304 if (adp->va_info.vi_flags & V_INFO_GRAPHICS)
2305 return ENODEV;
2306 off = row*adp->va_info.vi_width + col;
2307 }
2308
2309 s = spltty();
2310 outb(adp->va_crtc_addr, 14);
2311 outb(adp->va_crtc_addr + 1, off >> 8);
2312 outb(adp->va_crtc_addr, 15);
2313 outb(adp->va_crtc_addr + 1, off & 0x00ff);
2314 splx(s);
2315
2316 return 0;
2317 }
2318
2319 /*
2320 * set_hw_cursor_shape():
2321 * Change the shape of the hardware text cursor. If the height is
2322 * zero or negative, the cursor won't be shown.
2323 *
2324 * all adapters
2325 */
2326 static int
2327 vga_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
2328 int celsize, int blink)
2329 {
2330 int s;
2331
2332 if (!vga_init_done)
2333 return ENXIO;
2334
2335 s = spltty();
2336 switch (adp->va_type) {
2337 case KD_VGA:
2338 case KD_CGA:
2339 case KD_MONO:
2340 case KD_HERCULES:
2341 default:
2342 if (height <= 0) {
2343 /* make the cursor invisible */
2344 outb(adp->va_crtc_addr, 10);
2345 outb(adp->va_crtc_addr + 1, 32);
2346 outb(adp->va_crtc_addr, 11);
2347 outb(adp->va_crtc_addr + 1, 0);
2348 } else {
2349 outb(adp->va_crtc_addr, 10);
2350 outb(adp->va_crtc_addr + 1, celsize - base - height);
2351 outb(adp->va_crtc_addr, 11);
2352 outb(adp->va_crtc_addr + 1, celsize - base - 1);
2353 }
2354 break;
2355 case KD_EGA:
2356 if (height <= 0) {
2357 /* make the cursor invisible */
2358 outb(adp->va_crtc_addr, 10);
2359 outb(adp->va_crtc_addr + 1, celsize);
2360 outb(adp->va_crtc_addr, 11);
2361 outb(adp->va_crtc_addr + 1, 0);
2362 } else {
2363 outb(adp->va_crtc_addr, 10);
2364 outb(adp->va_crtc_addr + 1, celsize - base - height);
2365 outb(adp->va_crtc_addr, 11);
2366 outb(adp->va_crtc_addr + 1, celsize - base);
2367 }
2368 break;
2369 }
2370 splx(s);
2371
2372 return 0;
2373 }
2374
2375 /*
2376 * blank_display()
2377 * Put the display in power save/power off mode.
2378 *
2379 * all adapters
2380 */
2381 static int
2382 vga_blank_display(video_adapter_t *adp, int mode)
2383 {
2384 u_char val;
2385 int s;
2386
2387 s = splhigh();
2388 switch (adp->va_type) {
2389 case KD_VGA:
2390 switch (mode) {
2391 case V_DISPLAY_SUSPEND:
2392 case V_DISPLAY_STAND_BY:
2393 outb(TSIDX, 0x01);
2394 val = inb(TSREG);
2395 outb(TSIDX, 0x01);
2396 outb(TSREG, val | 0x20);
2397 outb(adp->va_crtc_addr, 0x17);
2398 val = inb(adp->va_crtc_addr + 1);
2399 outb(adp->va_crtc_addr + 1, val & ~0x80);
2400 break;
2401 case V_DISPLAY_BLANK:
2402 outb(TSIDX, 0x01);
2403 val = inb(TSREG);
2404 outb(TSIDX, 0x01);
2405 outb(TSREG, val | 0x20);
2406 break;
2407 case V_DISPLAY_ON:
2408 outb(TSIDX, 0x01);
2409 val = inb(TSREG);
2410 outb(TSIDX, 0x01);
2411 outb(TSREG, val & 0xDF);
2412 outb(adp->va_crtc_addr, 0x17);
2413 val = inb(adp->va_crtc_addr + 1);
2414 outb(adp->va_crtc_addr + 1, val | 0x80);
2415 break;
2416 }
2417 break;
2418
2419 case KD_EGA:
2420 /* no support yet */
2421 splx(s);
2422 return ENODEV;
2423
2424 case KD_CGA:
2425 switch (mode) {
2426 case V_DISPLAY_SUSPEND:
2427 case V_DISPLAY_STAND_BY:
2428 case V_DISPLAY_BLANK:
2429 outb(adp->va_crtc_addr + 4, 0x25);
2430 break;
2431 case V_DISPLAY_ON:
2432 outb(adp->va_crtc_addr + 4, 0x2d);
2433 break;
2434 }
2435 break;
2436
2437 case KD_MONO:
2438 case KD_HERCULES:
2439 switch (mode) {
2440 case V_DISPLAY_SUSPEND:
2441 case V_DISPLAY_STAND_BY:
2442 case V_DISPLAY_BLANK:
2443 outb(adp->va_crtc_addr + 4, 0x21);
2444 break;
2445 case V_DISPLAY_ON:
2446 outb(adp->va_crtc_addr + 4, 0x29);
2447 break;
2448 }
2449 break;
2450 default:
2451 break;
2452 }
2453 splx(s);
2454
2455 return 0;
2456 }
2457
2458 /*
2459 * mmap():
2460 * Mmap frame buffer.
2461 *
2462 * all adapters
2463 */
2464 static int
2465 vga_mmap_buf(video_adapter_t *adp, vm_offset_t offset, vm_paddr_t *paddr,
2466 int prot)
2467 {
2468 if (adp->va_info.vi_flags & V_INFO_LINEAR)
2469 return -1;
2470
2471 #if VGA_DEBUG > 0
2472 printf("vga_mmap_buf(): window:0x%jx, offset:0x%jx\n",
2473 (uintmax_t)adp->va_info.vi_window, (uintmax_t)offset);
2474 #endif
2475
2476 /* XXX: is this correct? */
2477 if (offset > adp->va_window_size - PAGE_SIZE)
2478 return -1;
2479
2480 *paddr = adp->va_info.vi_window + offset;
2481 return 0;
2482 }
2483
2484 #ifndef VGA_NO_MODE_CHANGE
2485
2486 static void
2487 planar_fill(video_adapter_t *adp, int val)
2488 {
2489 int length;
2490 int at; /* position in the frame buffer */
2491 int l;
2492
2493 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */
2494 outw(GDCIDX, 0x0003); /* data rotate/function select */
2495 outw(GDCIDX, 0x0f01); /* set/reset enable */
2496 outw(GDCIDX, 0xff08); /* bit mask */
2497 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */
2498 at = 0;
2499 length = adp->va_line_width*adp->va_info.vi_height;
2500 while (length > 0) {
2501 l = imin(length, adp->va_window_size);
2502 (*vidsw[adp->va_index]->set_win_org)(adp, at);
2503 bzero_io(adp->va_window, l);
2504 length -= l;
2505 at += l;
2506 }
2507 outw(GDCIDX, 0x0000); /* set/reset */
2508 outw(GDCIDX, 0x0001); /* set/reset enable */
2509 }
2510
2511 static void
2512 packed_fill(video_adapter_t *adp, int val)
2513 {
2514 int length;
2515 int at; /* position in the frame buffer */
2516 int l;
2517
2518 at = 0;
2519 length = adp->va_line_width*adp->va_info.vi_height;
2520 while (length > 0) {
2521 l = imin(length, adp->va_window_size);
2522 (*vidsw[adp->va_index]->set_win_org)(adp, at);
2523 fill_io(val, adp->va_window, l);
2524 length -= l;
2525 at += l;
2526 }
2527 }
2528
2529 static void
2530 direct_fill(video_adapter_t *adp, int val)
2531 {
2532 int length;
2533 int at; /* position in the frame buffer */
2534 int l;
2535
2536 at = 0;
2537 length = adp->va_line_width*adp->va_info.vi_height;
2538 while (length > 0) {
2539 l = imin(length, adp->va_window_size);
2540 (*vidsw[adp->va_index]->set_win_org)(adp, at);
2541 switch (adp->va_info.vi_pixel_size) {
2542 case sizeof(u_int16_t):
2543 fillw_io(val, adp->va_window, l/sizeof(u_int16_t));
2544 break;
2545 case 3:
2546 /* FIXME */
2547 break;
2548 case sizeof(u_int32_t):
2549 filll_io(val, adp->va_window, l/sizeof(u_int32_t));
2550 break;
2551 }
2552 length -= l;
2553 at += l;
2554 }
2555 }
2556
2557 static int
2558 vga_clear(video_adapter_t *adp)
2559 {
2560 switch (adp->va_info.vi_mem_model) {
2561 case V_INFO_MM_TEXT:
2562 /* do nothing? XXX */
2563 break;
2564 case V_INFO_MM_PLANAR:
2565 planar_fill(adp, 0);
2566 break;
2567 case V_INFO_MM_PACKED:
2568 packed_fill(adp, 0);
2569 break;
2570 case V_INFO_MM_DIRECT:
2571 direct_fill(adp, 0);
2572 break;
2573 }
2574 return 0;
2575 }
2576
2577 #ifdef notyet
2578 static void
2579 planar_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2580 {
2581 int banksize;
2582 int bank;
2583 int pos;
2584 int offset; /* offset within window */
2585 int bx;
2586 int l;
2587
2588 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */
2589 outw(GDCIDX, 0x0003); /* data rotate/function select */
2590 outw(GDCIDX, 0x0f01); /* set/reset enable */
2591 outw(GDCIDX, 0xff08); /* bit mask */
2592 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */
2593
2594 banksize = adp->va_window_size;
2595 bank = -1;
2596 while (cy > 0) {
2597 pos = adp->va_line_width*y + x/8;
2598 if (bank != pos/banksize) {
2599 (*vidsw[adp->va_index]->set_win_org)(adp, pos);
2600 bank = pos/banksize;
2601 }
2602 offset = pos%banksize;
2603 bx = (x + cx)/8 - x/8;
2604 if (x % 8) {
2605 outw(GDCIDX, ((0xff00 >> (x % 8)) & 0xff00) | 0x08);
2606 writeb(adp->va_window + offset, 0);
2607 ++offset;
2608 --bx;
2609 if (offset >= banksize) {
2610 offset = 0;
2611 ++bank; /* next bank */
2612 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize);
2613 }
2614 outw(GDCIDX, 0xff08); /* bit mask */
2615 }
2616 while (bx > 0) {
2617 l = imin(bx, banksize);
2618 bzero_io(adp->va_window + offset, l);
2619 offset += l;
2620 bx -= l;
2621 if (offset >= banksize) {
2622 offset = 0;
2623 ++bank; /* next bank */
2624 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize);
2625 }
2626 }
2627 if ((x + cx) % 8) {
2628 outw(GDCIDX, (~(0xff00 >> ((x + cx) % 8)) & 0xff00) | 0x08);
2629 writeb(adp->va_window + offset, 0);
2630 ++offset;
2631 if (offset >= banksize) {
2632 offset = 0;
2633 ++bank; /* next bank */
2634 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize);
2635 }
2636 outw(GDCIDX, 0xff08); /* bit mask */
2637 }
2638 ++y;
2639 --cy;
2640 }
2641
2642 outw(GDCIDX, 0xff08); /* bit mask */
2643 outw(GDCIDX, 0x0000); /* set/reset */
2644 outw(GDCIDX, 0x0001); /* set/reset enable */
2645 }
2646
2647 static void
2648 packed_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2649 {
2650 int banksize;
2651 int bank;
2652 int pos;
2653 int offset; /* offset within window */
2654 int end;
2655
2656 banksize = adp->va_window_size;
2657 bank = -1;
2658 cx *= adp->va_info.vi_pixel_size;
2659 while (cy > 0) {
2660 pos = adp->va_line_width*y + x*adp->va_info.vi_pixel_size;
2661 if (bank != pos/banksize) {
2662 (*vidsw[adp->va_index]->set_win_org)(adp, pos);
2663 bank = pos/banksize;
2664 }
2665 offset = pos%banksize;
2666 end = imin(offset + cx, banksize);
2667 fill_io(val, adp->va_window + offset,
2668 (end - offset)/adp->va_info.vi_pixel_size);
2669 /* the line may cross the window boundary */
2670 if (offset + cx > banksize) {
2671 ++bank; /* next bank */
2672 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize);
2673 end = offset + cx - banksize;
2674 fill_io(val, adp->va_window, end/adp->va_info.vi_pixel_size);
2675 }
2676 ++y;
2677 --cy;
2678 }
2679 }
2680
2681 static void
2682 direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2683 {
2684 int banksize;
2685 int bank;
2686 int pos;
2687 int offset; /* offset within window */
2688 int end;
2689
2690 /*
2691 * XXX: the function assumes that banksize is a muliple of
2692 * sizeof(u_int16_t).
2693 */
2694 banksize = adp->va_window_size;
2695 bank = -1;
2696 cx *= sizeof(u_int16_t);
2697 while (cy > 0) {
2698 pos = adp->va_line_width*y + x*sizeof(u_int16_t);
2699 if (bank != pos/banksize) {
2700 (*vidsw[adp->va_index]->set_win_org)(adp, pos);
2701 bank = pos/banksize;
2702 }
2703 offset = pos%banksize;
2704 end = imin(offset + cx, banksize);
2705 fillw_io(val, adp->va_window + offset,
2706 (end - offset)/sizeof(u_int16_t));
2707 /* the line may cross the window boundary */
2708 if (offset + cx > banksize) {
2709 ++bank; /* next bank */
2710 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize);
2711 end = offset + cx - banksize;
2712 fillw_io(val, adp->va_window, end/sizeof(u_int16_t));
2713 }
2714 ++y;
2715 --cy;
2716 }
2717 }
2718
2719 static void
2720 direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2721 {
2722 int banksize;
2723 int bank;
2724 int pos;
2725 int offset; /* offset within window */
2726 int end;
2727 int i;
2728 int j;
2729 u_int8_t b[3];
2730
2731 b[0] = val & 0x0000ff;
2732 b[1] = (val >> 8) & 0x0000ff;
2733 b[2] = (val >> 16) & 0x0000ff;
2734 banksize = adp->va_window_size;
2735 bank = -1;
2736 cx *= 3;
2737 while (cy > 0) {
2738 pos = adp->va_line_width*y + x*3;
2739 if (bank != pos/banksize) {
2740 (*vidsw[adp->va_index]->set_win_org)(adp, pos);
2741 bank = pos/banksize;
2742 }
2743 offset = pos%banksize;
2744 end = imin(offset + cx, banksize);
2745 for (i = 0, j = offset; j < end; i = (++i)%3, ++j) {
2746 writeb(adp->va_window + j, b[i]);
2747 }
2748 /* the line may cross the window boundary */
2749 if (offset + cx >= banksize) {
2750 ++bank; /* next bank */
2751 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize);
2752 j = 0;
2753 end = offset + cx - banksize;
2754 for (; j < end; i = (++i)%3, ++j) {
2755 writeb(adp->va_window + j, b[i]);
2756 }
2757 }
2758 ++y;
2759 --cy;
2760 }
2761 }
2762
2763 static void
2764 direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2765 {
2766 int banksize;
2767 int bank;
2768 int pos;
2769 int offset; /* offset within window */
2770 int end;
2771
2772 /*
2773 * XXX: the function assumes that banksize is a muliple of
2774 * sizeof(u_int32_t).
2775 */
2776 banksize = adp->va_window_size;
2777 bank = -1;
2778 cx *= sizeof(u_int32_t);
2779 while (cy > 0) {
2780 pos = adp->va_line_width*y + x*sizeof(u_int32_t);
2781 if (bank != pos/banksize) {
2782 (*vidsw[adp->va_index]->set_win_org)(adp, pos);
2783 bank = pos/banksize;
2784 }
2785 offset = pos%banksize;
2786 end = imin(offset + cx, banksize);
2787 filll_io(val, adp->va_window + offset,
2788 (end - offset)/sizeof(u_int32_t));
2789 /* the line may cross the window boundary */
2790 if (offset + cx > banksize) {
2791 ++bank; /* next bank */
2792 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize);
2793 end = offset + cx - banksize;
2794 filll_io(val, adp->va_window, end/sizeof(u_int32_t));
2795 }
2796 ++y;
2797 --cy;
2798 }
2799 }
2800
2801 static int
2802 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2803 {
2804 switch (adp->va_info.vi_mem_model) {
2805 case V_INFO_MM_TEXT:
2806 /* do nothing? XXX */
2807 break;
2808 case V_INFO_MM_PLANAR:
2809 planar_fill_rect(adp, val, x, y, cx, cy);
2810 break;
2811 case V_INFO_MM_PACKED:
2812 packed_fill_rect(adp, val, x, y, cx, cy);
2813 break;
2814 case V_INFO_MM_DIRECT:
2815 switch (adp->va_info.vi_pixel_size) {
2816 case sizeof(u_int16_t):
2817 direct_fill_rect16(adp, val, x, y, cx, cy);
2818 break;
2819 case 3:
2820 direct_fill_rect24(adp, val, x, y, cx, cy);
2821 break;
2822 case sizeof(u_int32_t):
2823 direct_fill_rect32(adp, val, x, y, cx, cy);
2824 break;
2825 }
2826 break;
2827 }
2828 return 0;
2829 }
2830 #else /* !notyet */
2831 static int
2832 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
2833 {
2834 return ENODEV;
2835 }
2836 #endif /* notyet */
2837
2838 static int
2839 vga_bitblt(video_adapter_t *adp,...)
2840 {
2841 /* FIXME */
2842 return ENODEV;
2843 }
2844
2845 #endif /* !VGA_NO_MODE_CHANGE */
2846
2847 static int
2848 get_palette(video_adapter_t *adp, int base, int count,
2849 u_char *red, u_char *green, u_char *blue, u_char *trans)
2850 {
2851 u_char *r;
2852 u_char *g;
2853 u_char *b;
2854
2855 if (count < 0 || base < 0 || count > 256 || base > 256 ||
2856 base + count > 256)
2857 return EINVAL;
2858
2859 r = malloc(count*3, M_DEVBUF, M_WAITOK);
2860 g = r + count;
2861 b = g + count;
2862 if (vga_save_palette2(adp, base, count, r, g, b)) {
2863 free(r, M_DEVBUF);
2864 return ENODEV;
2865 }
2866 copyout(r, red, count);
2867 copyout(g, green, count);
2868 copyout(b, blue, count);
2869 if (trans != NULL) {
2870 bzero(r, count);
2871 copyout(r, trans, count);
2872 }
2873 free(r, M_DEVBUF);
2874
2875 return 0;
2876 }
2877
2878 static int
2879 set_palette(video_adapter_t *adp, int base, int count,
2880 u_char *red, u_char *green, u_char *blue, u_char *trans)
2881 {
2882 u_char *r;
2883 u_char *g;
2884 u_char *b;
2885 int err;
2886
2887 if (count < 0 || base < 0 || count > 256 || base > 256 ||
2888 base + count > 256)
2889 return EINVAL;
2890
2891 r = malloc(count*3, M_DEVBUF, M_WAITOK);
2892 g = r + count;
2893 b = g + count;
2894 err = copyin(red, r, count);
2895 if (!err)
2896 err = copyin(green, g, count);
2897 if (!err)
2898 err = copyin(blue, b, count);
2899 if (!err)
2900 err = vga_load_palette2(adp, base, count, r, g, b);
2901 free(r, M_DEVBUF);
2902
2903 return (err ? ENODEV : 0);
2904 }
2905
2906 static int
2907 vga_dev_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg)
2908 {
2909 switch (cmd) {
2910 case FBIO_GETWINORG: /* get frame buffer window origin */
2911 *(u_int *)arg = 0;
2912 return 0;
2913
2914 case FBIO_SETWINORG: /* set frame buffer window origin */
2915 return ENODEV;
2916
2917 case FBIO_SETDISPSTART: /* set display start address */
2918 return (set_display_start(adp,
2919 ((video_display_start_t *)arg)->x,
2920 ((video_display_start_t *)arg)->y)
2921 ? ENODEV : 0);
2922
2923 case FBIO_SETLINEWIDTH: /* set scan line length in pixel */
2924 return (set_line_length(adp, *(u_int *)arg) ? ENODEV : 0);
2925
2926 case FBIO_GETPALETTE: /* get color palette */
2927 return get_palette(adp, ((video_color_palette_t *)arg)->index,
2928 ((video_color_palette_t *)arg)->count,
2929 ((video_color_palette_t *)arg)->red,
2930 ((video_color_palette_t *)arg)->green,
2931 ((video_color_palette_t *)arg)->blue,
2932 ((video_color_palette_t *)arg)->transparent);
2933
2934 case FBIO_SETPALETTE: /* set color palette */
2935 return set_palette(adp, ((video_color_palette_t *)arg)->index,
2936 ((video_color_palette_t *)arg)->count,
2937 ((video_color_palette_t *)arg)->red,
2938 ((video_color_palette_t *)arg)->green,
2939 ((video_color_palette_t *)arg)->blue,
2940 ((video_color_palette_t *)arg)->transparent);
2941
2942 case FBIOGTYPE: /* get frame buffer type info. */
2943 ((struct fbtype *)arg)->fb_type = fb_type(adp->va_type);
2944 ((struct fbtype *)arg)->fb_height = adp->va_info.vi_height;
2945 ((struct fbtype *)arg)->fb_width = adp->va_info.vi_width;
2946 ((struct fbtype *)arg)->fb_depth = adp->va_info.vi_depth;
2947 if ((adp->va_info.vi_depth <= 1) || (adp->va_info.vi_depth > 8))
2948 ((struct fbtype *)arg)->fb_cmsize = 0;
2949 else
2950 ((struct fbtype *)arg)->fb_cmsize = 1 << adp->va_info.vi_depth;
2951 ((struct fbtype *)arg)->fb_size = adp->va_buffer_size;
2952 return 0;
2953
2954 case FBIOGETCMAP: /* get color palette */
2955 return get_palette(adp, ((struct fbcmap *)arg)->index,
2956 ((struct fbcmap *)arg)->count,
2957 ((struct fbcmap *)arg)->red,
2958 ((struct fbcmap *)arg)->green,
2959 ((struct fbcmap *)arg)->blue, NULL);
2960
2961 case FBIOPUTCMAP: /* set color palette */
2962 return set_palette(adp, ((struct fbcmap *)arg)->index,
2963 ((struct fbcmap *)arg)->count,
2964 ((struct fbcmap *)arg)->red,
2965 ((struct fbcmap *)arg)->green,
2966 ((struct fbcmap *)arg)->blue, NULL);
2967
2968 default:
2969 return fb_commonioctl(adp, cmd, arg);
2970 }
2971 }
2972
2973 static void
2974 dump_buffer(u_char *buf, size_t len)
2975 {
2976 int i;
2977
2978 for(i = 0; i < len;) {
2979 printf("%02x ", buf[i]);
2980 if ((++i % 16) == 0)
2981 printf("\n");
2982 }
2983 }
2984
2985 /*
2986 * diag():
2987 * Print some information about the video adapter and video modes,
2988 * with requested level of details.
2989 *
2990 * all adapters
2991 */
2992 static int
2993 vga_diag(video_adapter_t *adp, int level)
2994 {
2995 u_char *mp;
2996 #if FB_DEBUG > 1
2997 video_info_t info;
2998 int i;
2999 #endif
3000
3001 if (!vga_init_done)
3002 return ENXIO;
3003
3004 #if FB_DEBUG > 1
3005 #ifndef VGA_NO_BIOS
3006 printf("vga: RTC equip. code:0x%02x, DCC code:0x%02x\n",
3007 rtcin(RTC_EQUIPMENT), readb(BIOS_PADDRTOVADDR(0x488)));
3008 printf("vga: CRTC:0x%x, video option:0x%02x, ",
3009 readw(BIOS_PADDRTOVADDR(0x463)),
3010 readb(BIOS_PADDRTOVADDR(0x487)));
3011 printf("rows:%d, cols:%d, font height:%d\n",
3012 readb(BIOS_PADDRTOVADDR(0x44a)),
3013 readb(BIOS_PADDRTOVADDR(0x484)) + 1,
3014 readb(BIOS_PADDRTOVADDR(0x485)));
3015 #endif /* VGA_NO_BIOS */
3016 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
3017 printf("vga: param table EGA/VGA:%p", video_mode_ptr);
3018 printf(", CGA/MDA:%p\n", video_mode_ptr2);
3019 printf("vga: rows_offset:%d\n", rows_offset);
3020 #endif
3021 #endif /* FB_DEBUG > 1 */
3022
3023 fb_dump_adp_info(VGA_DRIVER_NAME, adp, level);
3024
3025 #if FB_DEBUG > 1
3026 if (adp->va_flags & V_ADP_MODECHANGE) {
3027 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) {
3028 if (bios_vmode[i].vi_mode == NA)
3029 continue;
3030 if (get_mode_param(bios_vmode[i].vi_mode) == NULL)
3031 continue;
3032 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &bios_vmode[i], level);
3033 }
3034 } else {
3035 vga_get_info(adp, adp->va_initial_mode, &info); /* shouldn't fail */
3036 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &info, level);
3037 }
3038 #endif /* FB_DEBUG > 1 */
3039
3040 if ((adp->va_type != KD_EGA) && (adp->va_type != KD_VGA))
3041 return 0;
3042 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE)
3043 if (video_mode_ptr == NULL)
3044 printf("vga%d: %s: WARNING: video mode switching is not "
3045 "fully supported on this adapter\n",
3046 adp->va_unit, adp->va_name);
3047 #endif
3048 if (level <= 0)
3049 return 0;
3050
3051 if (adp->va_type == KD_VGA) {
3052 printf("VGA parameters upon power-up\n");
3053 dump_buffer(adpstate.regs, sizeof(adpstate.regs));
3054 printf("VGA parameters in BIOS for mode %d\n", adp->va_initial_mode);
3055 dump_buffer(adpstate2.regs, sizeof(adpstate2.regs));
3056 }
3057
3058 mp = get_mode_param(adp->va_initial_mode);
3059 if (mp == NULL) /* this shouldn't be happening */
3060 return 0;
3061 printf("EGA/VGA parameters to be used for mode %d\n", adp->va_initial_mode);
3062 dump_buffer(mp, V_MODE_PARAM_SIZE);
3063
3064 return 0;
3065 }
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