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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [services/] [gfx/] [mw/] [v2_0/] [src/] [drivers/] [vgainit.c] - Blame information for rev 174

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Line No. Rev Author Line
1 27 unneback 
/*
2 
 * Copyright (c) 1999, 2002 Greg Haerr <greg@censoft.com>
3 
 * Copyright (c) 1991 David I. Bell
4 
 * Permission is granted to use, distribute, or modify this source,
5 
 * provided that this copyright notice remains intact.
6 
 *
7 
 * Alternate EGA/VGA Screen Driver Init, direct hw programming
8 
 */
9 
#include "device.h"
10 
#include "vgaplan4.h"
11 
 
12 
#ifdef __rtems__
13 
#define ROMFONT         0        /* =0 no bios rom fonts available*/
14 
#else
15 
#ifdef __ECOS
16 
#define ROMFONT     0
17 
#else
18 
#define ROMFONT         1       /* =1 uses PC rom fonts */
19 
#endif
20 
#endif
21 
 
22 
/* Define one and only one of the following to be nonzero*/
23 
#define VGA_ET4000      0        /* TSENG LABS ET4000 chip 800x600*/
24 
#define VGA_STANDARD    1       /* standard VGA 640x480*/
25 
#define EGA_STANDARD    0        /* standard EGA 640x350*/
26 
 
27 
#define DONE    0
28 
#define IN      1
29 
#define OUT     2
30 
 
31 
#define RAM_SCAN_LINES  32      /* number of scan lines in fonts in RAM */
32 
#define FONT_CHARS      256     /* number of characters in font tables */
33 
#define CHAR_WIDTH      8       /* number of pixels for character width */
34 
 
35 
#define PALREG  0x3c0
36 
#define SEQREG  0x3c4
37 
#define SEQVAL  0x3c5
38 
#define GRREG   0x3ce
39 
#define GRVAL   0x3cf
40 
#define ATTRREG 0x3da
41 
#define CRTCREG 0x3d4
42 
#define CRTCVAL 0x3d5
43 
 
44 
#define GENREG1 0x3c2
45 
#define GENREG2 0x3cc
46 
#define GENREG3 0x3ca
47 
 
48 
#define DATA_ROTATE     3       /* register number for data rotate */
49 
 
50 
typedef struct {
51 
  int action;
52 
  int port1;
53 
  int data1;
54 
  int port2;
55 
  int data2;
56 
} REGIO;
57 
 
58 
/* extern data*/
59 
#if ROMFONT
60 
extern FARADDR          rom_char_addr;          /* address of ROM font*/
61 
extern int              ROM_CHAR_HEIGHT;        /* ROM character height*/
62 
#endif
63 
 
64 
/* local data*/
65 
extern REGIO            graphics_on[];
66 
extern REGIO            graph_off[];
67 
 
68 
/* entry points*/
69 
void            ega_hwinit(void);
70 
void            ega_hwterm(void);
71 
 
72 
/* local routines*/
73 
static void writeregs(REGIO *rp);
74 
static void out_word(unsigned int p,unsigned int d);
75 
static void setmode(int mode);
76 
 
77 
void
78 
ega_hwinit(void)
79 
{
80 
        writeregs(graphics_on);
81 
}
82 
 
83 
void
84 
ega_hwterm(void)
85 
{
86 
  setmode(MWMODE_COPY);
87 
 
88 
  /* Copy character table from ROM back into bit plane 2 before turning
89 
   * off graphics.
90 
   */
91 
  out_word(SEQREG, 0x0100);     /* syn reset */
92 
  out_word(SEQREG, 0x0402);     /* cpu writes only to map 2 */
93 
  out_word(SEQREG, 0x0704);     /* sequential addressing */
94 
  out_word(SEQREG, 0x0300);     /* clear synchronous reset */
95 
 
96 
  out_word(GRREG, 0x0204);      /* select map 2 for CPU reads */
97 
  out_word(GRREG, 0x0005);      /* disable odd-even addressing */
98 
 
99 
#if ROMFONT
100 
  {
101 
          FARADDR       srcoffset;
102 
          FARADDR       destoffset;
103 
          int           data;
104 
          int           ch;
105 
          int           row;
106 
 
107 
          srcoffset = rom_char_addr;
108 
          destoffset = EGA_BASE;
109 
          for (ch = 0; ch < FONT_CHARS; ch++) {
110 
                for(row = 0; row < ROM_CHAR_HEIGHT; row++) {
111 
                        data = GETBYTE_FP(srcoffset++);
112 
                        PUTBYTE_FP(destoffset++, data);
113 
                }
114 
                destoffset += (RAM_SCAN_LINES - ROM_CHAR_HEIGHT);
115 
          }
116 
  }
117 
#endif
118 
 
119 
  /* Finally set the registers back for text mode. */
120 
  writeregs(graph_off);
121 
}
122 
 
123 
/* Set the graphics registers as indicated by the given table */
124 
static void
125 
writeregs(REGIO *rp)
126 
{
127 
  for (; rp->action != DONE; rp++) {
128 
        switch (rp->action) {
129 
            case IN:
130 
#ifdef __ECOS
131 
        {
132 
            int x;
133 
            HAL_READ_UINT8(rp->port1, x);
134 
        }
135 
#else
136 
                        inp(rp->port1);
137 
#endif
138 
                        break;
139 
            case OUT:
140 
                        outp(rp->port1, rp->data1);
141 
                        if (rp->port2)
142 
                                outp(rp->port2, rp->data2);
143 
                        break;
144 
        }
145 
  }
146 
}
147 
 
148 
/* Output a word to an I/O port. */
149 
static void
150 
out_word(unsigned int p,unsigned int d)
151 
{
152 
  outp(p, d & 0xff);
153 
  outp(p + 1, (d >> 8) & 0xff);
154 
}
155 
 
156 
 
157 
/* Values for the data rotate register to implement drawing modes. */
158 
static unsigned char mode_table[MWMODE_MAX + 1] = {
159 
  0x00, 0x18, 0x10, 0x08,       /* COPY, XOR, AND, OR implemented*/
160 
  0x00, 0x00, 0x00, 0x00,       /* no VGA HW for other modes*/
161 
  0x00, 0x00, 0x00, 0x00,
162 
  0x00, 0x00, 0x00, 0x00,
163 
};
164 
 
165 
/* Set the drawing mode.
166 
 * This is either SET, OR, AND, or XOR.
167 
 */
168 
static void
169 
setmode(int mode)
170 
{
171 
  if (mode > MWMODE_MAX)
172 
        return;
173 
  outp(GRREG, DATA_ROTATE);
174 
  outp(GRVAL, mode_table[mode]);
175 
}
176 
 
177 
 
178 
#if VGA_ET4000
179 
 
180 
/* VGA 800x600 16-color graphics (BIOS mode 0x29).
181 
 */
182 
static REGIO graphics_on[] = {
183 
  /* Reset attr F/F */
184 
  IN, ATTRREG, 0, 0, 0,
185 
 
186 
  /* Disable palette */
187 
  OUT, PALREG, 0, 0, 0,
188 
 
189 
  /* Reset sequencer regs */
190 
  OUT, SEQREG, 0, SEQVAL, 0,
191 
  OUT, SEQREG, 1, SEQVAL, 1,
192 
  OUT, SEQREG, 2, SEQVAL, 0x0f,
193 
  OUT, SEQREG, 3, SEQVAL, 0,
194 
  OUT, SEQREG, 4, SEQVAL, 6,
195 
 
196 
  /* Misc out reg */
197 
  OUT, GENREG1, 0xe3, 0, 0,
198 
 
199 
  /* Sequencer enable */
200 
  OUT, SEQREG, 0, SEQVAL, 0x03,
201 
 
202 
  /* Unprotect crtc regs 0-7 */
203 
  OUT, CRTCREG, 0x11, CRTCVAL, 0,
204 
 
205 
  /* Crtc */
206 
  OUT, CRTCREG, 0, CRTCVAL, 0x7a,
207 
  OUT, CRTCREG, 1, CRTCVAL, 0x63,
208 
  OUT, CRTCREG, 2, CRTCVAL, 0x64,
209 
  OUT, CRTCREG, 3, CRTCVAL, 0x1d,
210 
  OUT, CRTCREG, 4, CRTCVAL, 0x68,
211 
  OUT, CRTCREG, 5, CRTCVAL, 0x9a,
212 
  OUT, CRTCREG, 6, CRTCVAL, 0x78,
213 
  OUT, CRTCREG, 7, CRTCVAL, 0xf0,
214 
  OUT, CRTCREG, 8, CRTCVAL, 0x00,
215 
  OUT, CRTCREG, 9, CRTCVAL, 0x60,
216 
  OUT, CRTCREG, 10, CRTCVAL, 0x00,
217 
  OUT, CRTCREG, 11, CRTCVAL, 0x00,
218 
  OUT, CRTCREG, 12, CRTCVAL, 0x00,
219 
  OUT, CRTCREG, 13, CRTCVAL, 0x00,
220 
  OUT, CRTCREG, 14, CRTCVAL, 0x00,
221 
  OUT, CRTCREG, 15, CRTCVAL, 0x00,
222 
  OUT, CRTCREG, 16, CRTCVAL, 0x5c,
223 
  OUT, CRTCREG, 17, CRTCVAL, 0x8e,
224 
  OUT, CRTCREG, 18, CRTCVAL, 0x57,
225 
  OUT, CRTCREG, 19, CRTCVAL, 0x32,
226 
  OUT, CRTCREG, 20, CRTCVAL, 0x00,
227 
  OUT, CRTCREG, 21, CRTCVAL, 0x5b,
228 
  OUT, CRTCREG, 22, CRTCVAL, 0x75,
229 
  OUT, CRTCREG, 23, CRTCVAL, 0xc3,
230 
  OUT, CRTCREG, 24, CRTCVAL, 0xff,
231 
 
232 
  /* Graphics controller */
233 
  OUT, GENREG2, 0x00, 0, 0,
234 
  OUT, GENREG3, 0x01, 0, 0,
235 
  OUT, GRREG, 0, GRVAL, 0x00,
236 
  OUT, GRREG, 1, GRVAL, 0x00,
237 
  OUT, GRREG, 2, GRVAL, 0x00,
238 
  OUT, GRREG, 3, GRVAL, 0x00,
239 
  OUT, GRREG, 4, GRVAL, 0x00,
240 
  OUT, GRREG, 5, GRVAL, 0x00,
241 
  OUT, GRREG, 6, GRVAL, 0x05,
242 
  OUT, GRREG, 7, GRVAL, 0x0f,
243 
  OUT, GRREG, 8, GRVAL, 0xff,
244 
 
245 
  /* Reset attribute flip/flop */
246 
  IN, ATTRREG, 0, 0, 0,
247 
 
248 
  /* Palette */
249 
  OUT, PALREG, 0, PALREG, 0x00,
250 
  OUT, PALREG, 1, PALREG, 0x01,
251 
  OUT, PALREG, 2, PALREG, 0x02,
252 
  OUT, PALREG, 3, PALREG, 0x03,
253 
  OUT, PALREG, 4, PALREG, 0x04,
254 
  OUT, PALREG, 5, PALREG, 0x05,
255 
  OUT, PALREG, 6, PALREG, 0x06,
256 
  OUT, PALREG, 7, PALREG, 0x07,
257 
  OUT, PALREG, 8, PALREG, 0x38,
258 
  OUT, PALREG, 9, PALREG, 0x39,
259 
  OUT, PALREG, 10, PALREG, 0x3a,
260 
  OUT, PALREG, 11, PALREG, 0x3b,
261 
  OUT, PALREG, 12, PALREG, 0x3c,
262 
  OUT, PALREG, 13, PALREG, 0x3d,
263 
  OUT, PALREG, 14, PALREG, 0x3e,
264 
  OUT, PALREG, 15, PALREG, 0x3f,
265 
  OUT, PALREG, 16, PALREG, 0x01,
266 
  OUT, PALREG, 17, PALREG, 0x00,
267 
  OUT, PALREG, 18, PALREG, 0x0f,
268 
  OUT, PALREG, 19, PALREG, 0x00,
269 
 
270 
  /* Enable palette */
271 
  OUT, PALREG, 0x20, 0, 0,
272 
 
273 
  /* End of table */
274 
  DONE, 0, 0, 0, 0
275 
};
276 
 
277 
 
278 
/* VGA 80x25 text (BIOS mode 3).
279 
 */
280 
static REGIO graph_off[] = {
281 
  /* Reset attr F/F */
282 
  IN, ATTRREG, 0, 0, 0,
283 
 
284 
  /* Disable palette */
285 
  OUT, PALREG, 0, 0, 0,
286 
 
287 
  /* Reset sequencer regs */
288 
  OUT, SEQREG, 0, SEQVAL, 1,
289 
  OUT, SEQREG, 1, SEQVAL, 1,
290 
  OUT, SEQREG, 2, SEQVAL, 3,
291 
  OUT, SEQREG, 3, SEQVAL, 0,
292 
  OUT, SEQREG, 4, SEQVAL, 2,
293 
 
294 
  /* Misc out reg */
295 
  OUT, GENREG1, 0x63, 0, 0,
296 
 
297 
  /* Sequencer enable */
298 
  OUT, SEQREG, 0, SEQVAL, 3,
299 
 
300 
  /* Unprotect crtc regs 0-7 */
301 
  OUT, CRTCREG, 0x11, CRTCVAL, 0,
302 
 
303 
  /* Crtc */
304 
  OUT, CRTCREG, 0, CRTCVAL, 0x5f,        /* horiz total */
305 
  OUT, CRTCREG, 1, CRTCVAL, 0x4f,       /* horiz end */
306 
  OUT, CRTCREG, 2, CRTCVAL, 0x50,       /* horiz blank */
307 
  OUT, CRTCREG, 3, CRTCVAL, 0x82,       /* end blank */
308 
  OUT, CRTCREG, 4, CRTCVAL, 0x55,       /* horiz retrace */
309 
  OUT, CRTCREG, 5, CRTCVAL, 0x81,       /* end retrace */
310 
  OUT, CRTCREG, 6, CRTCVAL, 0xbf,       /* vert total */
311 
  OUT, CRTCREG, 7, CRTCVAL, 0x1f,       /* overflows */
312 
  OUT, CRTCREG, 8, CRTCVAL, 0x00,       /* row scan */
313 
  OUT, CRTCREG, 9, CRTCVAL, 0x4f,       /* max scan line */
314 
  OUT, CRTCREG, 10, CRTCVAL, 0x00,      /* cursor start */
315 
  OUT, CRTCREG, 11, CRTCVAL, 0x0f,      /* cursor end */
316 
  OUT, CRTCREG, 12, CRTCVAL, 0x0e,      /* start high addr */
317 
  OUT, CRTCREG, 13, CRTCVAL, 0xb0,      /* low addr */
318 
  OUT, CRTCREG, 14, CRTCVAL, 0x16,      /* cursor high */
319 
  OUT, CRTCREG, 15, CRTCVAL, 0x30,      /* cursor low */
320 
  OUT, CRTCREG, 16, CRTCVAL, 0x9c,      /* vert retrace */
321 
  OUT, CRTCREG, 17, CRTCVAL, 0x8e,      /* retrace end */
322 
  OUT, CRTCREG, 18, CRTCVAL, 0x8f,      /* vert end */
323 
  OUT, CRTCREG, 19, CRTCVAL, 0x28,      /* offset */
324 
  OUT, CRTCREG, 20, CRTCVAL, 0x1f,      /* underline */
325 
  OUT, CRTCREG, 21, CRTCVAL, 0x96,      /* vert blank */
326 
  OUT, CRTCREG, 22, CRTCVAL, 0xb9,      /* end blank */
327 
  OUT, CRTCREG, 23, CRTCVAL, 0xa3,      /* crt mode */
328 
  OUT, CRTCREG, 24, CRTCVAL, 0xff,      /* line compare */
329 
 
330 
  /* Graphics controller */
331 
  OUT, GENREG2, 0x00, 0, 0,
332 
  OUT, GENREG3, 0x01, 0, 0,
333 
  OUT, GRREG, 0, GRVAL, 0x00,
334 
  OUT, GRREG, 1, GRVAL, 0x00,
335 
  OUT, GRREG, 2, GRVAL, 0x00,
336 
  OUT, GRREG, 3, GRVAL, 0x00,
337 
  OUT, GRREG, 4, GRVAL, 0x00,
338 
  OUT, GRREG, 5, GRVAL, 0x10,
339 
  OUT, GRREG, 6, GRVAL, 0x0e,
340 
  OUT, GRREG, 7, GRVAL, 0x00,
341 
  OUT, GRREG, 8, GRVAL, 0xff,
342 
 
343 
  /* Reset attribute flip/flop */
344 
  IN, ATTRREG, 0, 0, 0,
345 
 
346 
  /* Palette */
347 
  OUT, PALREG, 0, PALREG, 0x00,
348 
  OUT, PALREG, 1, PALREG, 0x01,
349 
  OUT, PALREG, 2, PALREG, 0x02,
350 
  OUT, PALREG, 3, PALREG, 0x03,
351 
  OUT, PALREG, 4, PALREG, 0x04,
352 
  OUT, PALREG, 5, PALREG, 0x05,
353 
  OUT, PALREG, 6, PALREG, 0x06,
354 
  OUT, PALREG, 7, PALREG, 0x07,
355 
  OUT, PALREG, 8, PALREG, 0x10,
356 
  OUT, PALREG, 9, PALREG, 0x11,
357 
  OUT, PALREG, 10, PALREG, 0x12,
358 
  OUT, PALREG, 11, PALREG, 0x13,
359 
  OUT, PALREG, 12, PALREG, 0x14,
360 
  OUT, PALREG, 13, PALREG, 0x15,
361 
  OUT, PALREG, 14, PALREG, 0x16,
362 
  OUT, PALREG, 15, PALREG, 0x17,
363 
  OUT, PALREG, 16, PALREG, 0x08,
364 
  OUT, PALREG, 17, PALREG, 0x00,
365 
  OUT, PALREG, 18, PALREG, 0x0f,
366 
  OUT, PALREG, 19, PALREG, 0x00,
367 
 
368 
  /* Enable palette */
369 
  OUT, PALREG, 0x20, 0, 0,
370 
 
371 
  /* End of table */
372 
  DONE, 0, 0, 0, 0
373 
};
374 
 
375 
#endif
376 
 
377 
 
378 
#if VGA_STANDARD
379 
 
380 
/* VGA 640x480 16-color graphics (BIOS mode 0x12).
381 
 */
382 
static REGIO graphics_on[] = {
383 
  /* Reset attr F/F */
384 
  IN, ATTRREG, 0, 0, 0,
385 
 
386 
  /* Disable palette */
387 
  OUT, PALREG, 0, 0, 0,
388 
 
389 
  /* Reset sequencer regs */
390 
  OUT, SEQREG, 0, SEQVAL, 0,
391 
  OUT, SEQREG, 1, SEQVAL, 1,
392 
  OUT, SEQREG, 2, SEQVAL, 0x0f,
393 
  OUT, SEQREG, 3, SEQVAL, 0,
394 
  OUT, SEQREG, 4, SEQVAL, 6,
395 
 
396 
  /* Misc out reg */
397 
  OUT, GENREG1, 0xe3, 0, 0,
398 
 
399 
  /* Sequencer enable */
400 
  OUT, SEQREG, 0, SEQVAL, 0x03,
401 
 
402 
  /* Unprotect crtc regs 0-7 */
403 
  OUT, CRTCREG, 0x11, CRTCVAL, 0,
404 
 
405 
  /* Crtc */
406 
  OUT, CRTCREG, 0, CRTCVAL, 0x5f,
407 
  OUT, CRTCREG, 1, CRTCVAL, 0x4f,
408 
  OUT, CRTCREG, 2, CRTCVAL, 0x50,
409 
  OUT, CRTCREG, 3, CRTCVAL, 0x82,
410 
  OUT, CRTCREG, 4, CRTCVAL, 0x54,
411 
  OUT, CRTCREG, 5, CRTCVAL, 0x80,
412 
  OUT, CRTCREG, 6, CRTCVAL, 0x0b,
413 
  OUT, CRTCREG, 7, CRTCVAL, 0x3e,
414 
  OUT, CRTCREG, 8, CRTCVAL, 0x00,
415 
  OUT, CRTCREG, 9, CRTCVAL, 0x40,
416 
  OUT, CRTCREG, 10, CRTCVAL, 0x00,
417 
  OUT, CRTCREG, 11, CRTCVAL, 0x00,
418 
  OUT, CRTCREG, 12, CRTCVAL, 0x00,
419 
  OUT, CRTCREG, 13, CRTCVAL, 0x00,
420 
  OUT, CRTCREG, 14, CRTCVAL, 0x00,
421 
  OUT, CRTCREG, 15, CRTCVAL, 0x59,
422 
  OUT, CRTCREG, 16, CRTCVAL, 0xea,
423 
  OUT, CRTCREG, 17, CRTCVAL, 0x8c,
424 
  OUT, CRTCREG, 18, CRTCVAL, 0xdf,
425 
  OUT, CRTCREG, 19, CRTCVAL, 0x28,
426 
  OUT, CRTCREG, 20, CRTCVAL, 0x00,
427 
  OUT, CRTCREG, 21, CRTCVAL, 0xe7,
428 
  OUT, CRTCREG, 22, CRTCVAL, 0x04,
429 
  OUT, CRTCREG, 23, CRTCVAL, 0xe3,
430 
  OUT, CRTCREG, 24, CRTCVAL, 0xff,
431 
 
432 
  /* Graphics controller */
433 
  OUT, GENREG2, 0x00, 0, 0,
434 
  OUT, GENREG3, 0x01, 0, 0,
435 
  OUT, GRREG, 0, GRVAL, 0x00,
436 
#if 0
437 
  // bartv: the original value 0x00 appeared to leave all planes disabled.
438 
  OUT, GRREG, 1, GRVAL, 0x00,
439 
#else
440 
  OUT, GRREG, 1, GRVAL, 0x0F,
441 
#endif
442 
  OUT, GRREG, 2, GRVAL, 0x00,
443 
  OUT, GRREG, 3, GRVAL, 0x00,
444 
  OUT, GRREG, 4, GRVAL, 0x00,
445 
  OUT, GRREG, 5, GRVAL, 0x00,
446 
  OUT, GRREG, 6, GRVAL, 0x05,
447 
  OUT, GRREG, 7, GRVAL, 0x0f,
448 
  OUT, GRREG, 8, GRVAL, 0xff,
449 
 
450 
  /* Reset attribute flip/flop */
451 
  IN, ATTRREG, 0, 0, 0,
452 
 
453 
  /* Palette */
454 
  OUT, PALREG, 0, PALREG, 0x00,
455 
  OUT, PALREG, 1, PALREG, 0x01,
456 
  OUT, PALREG, 2, PALREG, 0x02,
457 
  OUT, PALREG, 3, PALREG, 0x03,
458 
  OUT, PALREG, 4, PALREG, 0x04,
459 
  OUT, PALREG, 5, PALREG, 0x05,
460 
  OUT, PALREG, 6, PALREG, 0x06,
461 
  OUT, PALREG, 7, PALREG, 0x07,
462 
  OUT, PALREG, 8, PALREG, 0x38,
463 
  OUT, PALREG, 9, PALREG, 0x39,
464 
  OUT, PALREG, 10, PALREG, 0x3a,
465 
  OUT, PALREG, 11, PALREG, 0x3b,
466 
  OUT, PALREG, 12, PALREG, 0x3c,
467 
  OUT, PALREG, 13, PALREG, 0x3d,
468 
  OUT, PALREG, 14, PALREG, 0x3e,
469 
  OUT, PALREG, 15, PALREG, 0x3f,
470 
  OUT, PALREG, 16, PALREG, 0x01,
471 
  OUT, PALREG, 17, PALREG, 0x00,
472 
  OUT, PALREG, 18, PALREG, 0x0f,
473 
  OUT, PALREG, 19, PALREG, 0x00,
474 
 
475 
  /* Enable palette */
476 
  OUT, PALREG, 0x20, 0, 0,
477 
 
478 
  /* End of table */
479 
  DONE, 0, 0, 0, 0
480 
};
481 
 
482 
 
483 
/* VGA 80x25 text (BIOS mode 3).
484 
 */
485 
static REGIO graph_off[] = {
486 
  /* Reset attr F/F */
487 
  IN, ATTRREG, 0, 0, 0,
488 
 
489 
  /* Disable palette */
490 
  OUT, PALREG, 0, 0, 0,
491 
 
492 
  /* Reset sequencer regs */
493 
  OUT, SEQREG, 0, SEQVAL, 1,
494 
  OUT, SEQREG, 1, SEQVAL, 1,
495 
  OUT, SEQREG, 2, SEQVAL, 3,
496 
  OUT, SEQREG, 3, SEQVAL, 0,
497 
  OUT, SEQREG, 4, SEQVAL, 2,
498 
 
499 
  /* Misc out reg */
500 
  OUT, GENREG1, 0x63, 0, 0,
501 
 
502 
  /* Sequencer enable */
503 
  OUT, SEQREG, 0, SEQVAL, 3,
504 
 
505 
  /* Unprotect crtc regs 0-7 */
506 
  OUT, CRTCREG, 0x11, CRTCVAL, 0,
507 
 
508 
  /* Crtc */
509 
  OUT, CRTCREG, 0, CRTCVAL, 0x5f,        /* horiz total */
510 
  OUT, CRTCREG, 1, CRTCVAL, 0x4f,       /* horiz end */
511 
  OUT, CRTCREG, 2, CRTCVAL, 0x50,       /* horiz blank */
512 
  OUT, CRTCREG, 3, CRTCVAL, 0x82,       /* end blank */
513 
  OUT, CRTCREG, 4, CRTCVAL, 0x55,       /* horiz retrace */
514 
  OUT, CRTCREG, 5, CRTCVAL, 0x81,       /* end retrace */
515 
  OUT, CRTCREG, 6, CRTCVAL, 0xbf,       /* vert total */
516 
  OUT, CRTCREG, 7, CRTCVAL, 0x1f,       /* overflows */
517 
  OUT, CRTCREG, 8, CRTCVAL, 0x00,       /* row scan */
518 
  OUT, CRTCREG, 9, CRTCVAL, 0x4f,       /* max scan line */
519 
  OUT, CRTCREG, 10, CRTCVAL, 0x00,      /* cursor start */
520 
  OUT, CRTCREG, 11, CRTCVAL, 0x0f,      /* cursor end */
521 
  OUT, CRTCREG, 12, CRTCVAL, 0x0e,      /* start high addr */
522 
  OUT, CRTCREG, 13, CRTCVAL, 0xb0,      /* low addr */
523 
  OUT, CRTCREG, 14, CRTCVAL, 0x16,      /* cursor high */
524 
  OUT, CRTCREG, 15, CRTCVAL, 0x30,      /* cursor low */
525 
  OUT, CRTCREG, 16, CRTCVAL, 0x9c,      /* vert retrace */
526 
  OUT, CRTCREG, 17, CRTCVAL, 0x8e,      /* retrace end */
527 
  OUT, CRTCREG, 18, CRTCVAL, 0x8f,      /* vert end */
528 
  OUT, CRTCREG, 19, CRTCVAL, 0x28,      /* offset */
529 
  OUT, CRTCREG, 20, CRTCVAL, 0x1f,      /* underline */
530 
  OUT, CRTCREG, 21, CRTCVAL, 0x96,      /* vert blank */
531 
  OUT, CRTCREG, 22, CRTCVAL, 0xb9,      /* end blank */
532 
  OUT, CRTCREG, 23, CRTCVAL, 0xa3,      /* crt mode */
533 
  OUT, CRTCREG, 24, CRTCVAL, 0xff,      /* line compare */
534 
 
535 
  /* Graphics controller */
536 
  OUT, GENREG2, 0x00, 0, 0,
537 
  OUT, GENREG3, 0x01, 0, 0,
538 
  OUT, GRREG, 0, GRVAL, 0x00,
539 
  OUT, GRREG, 1, GRVAL, 0x00,
540 
  OUT, GRREG, 2, GRVAL, 0x00,
541 
  OUT, GRREG, 3, GRVAL, 0x00,
542 
  OUT, GRREG, 4, GRVAL, 0x00,
543 
  OUT, GRREG, 5, GRVAL, 0x10,
544 
  OUT, GRREG, 6, GRVAL, 0x0e,
545 
  OUT, GRREG, 7, GRVAL, 0x00,
546 
  OUT, GRREG, 8, GRVAL, 0xff,
547 
 
548 
  /* Reset attribute flip/flop */
549 
  IN, ATTRREG, 0, 0, 0,
550 
 
551 
  /* Palette */
552 
  OUT, PALREG, 0, PALREG, 0x00,
553 
  OUT, PALREG, 1, PALREG, 0x01,
554 
  OUT, PALREG, 2, PALREG, 0x02,
555 
  OUT, PALREG, 3, PALREG, 0x03,
556 
  OUT, PALREG, 4, PALREG, 0x04,
557 
  OUT, PALREG, 5, PALREG, 0x05,
558 
  OUT, PALREG, 6, PALREG, 0x06,
559 
  OUT, PALREG, 7, PALREG, 0x07,
560 
  OUT, PALREG, 8, PALREG, 0x10,
561 
  OUT, PALREG, 9, PALREG, 0x11,
562 
  OUT, PALREG, 10, PALREG, 0x12,
563 
  OUT, PALREG, 11, PALREG, 0x13,
564 
  OUT, PALREG, 12, PALREG, 0x14,
565 
  OUT, PALREG, 13, PALREG, 0x15,
566 
  OUT, PALREG, 14, PALREG, 0x16,
567 
  OUT, PALREG, 15, PALREG, 0x17,
568 
  OUT, PALREG, 16, PALREG, 0x08,
569 
  OUT, PALREG, 17, PALREG, 0x00,
570 
  OUT, PALREG, 18, PALREG, 0x0f,
571 
  OUT, PALREG, 19, PALREG, 0x00,
572 
 
573 
  /* Enable palette */
574 
  OUT, PALREG, 0x20, 0, 0,
575 
 
576 
  /* End of table */
577 
  DONE, 0, 0, 0, 0
578 
};
579 
 
580 
#endif
581 
 
582 
 
583 
#if EGA_STANDARD
584 
 
585 
/* EGA 640x350 16-color graphics (BIOS mode 0x10).
586 
 */
587 
static REGIO graphics_on[] = {
588 
  /* Reset attr F/F */
589 
  IN, ATTRREG, 0, 0, 0,
590 
 
591 
  /* Disable palette */
592 
  OUT, PALREG, 0, 0, 0,
593 
 
594 
  /* Reset sequencer regs */
595 
  OUT, SEQREG, 0, SEQVAL, 0,
596 
  OUT, SEQREG, 1, SEQVAL, 1,
597 
  OUT, SEQREG, 2, SEQVAL, 0x0f,
598 
  OUT, SEQREG, 3, SEQVAL, 0,
599 
  OUT, SEQREG, 4, SEQVAL, 6,
600 
 
601 
  /* Misc out reg */
602 
  OUT, GENREG1, 0xa7, 0, 0,
603 
 
604 
  /* Sequencer enable */
605 
  OUT, SEQREG, 0, SEQVAL, 0x03,
606 
 
607 
  /* Unprotect crtc regs 0-7 */
608 
  OUT, CRTCREG, 0x11, CRTCVAL, 0,
609 
 
610 
  /* Crtc */
611 
  OUT, CRTCREG, 0, CRTCVAL, 0x5b,
612 
  OUT, CRTCREG, 1, CRTCVAL, 0x4f,
613 
  OUT, CRTCREG, 2, CRTCVAL, 0x53,
614 
  OUT, CRTCREG, 3, CRTCVAL, 0x37,
615 
  OUT, CRTCREG, 4, CRTCVAL, 0x52,
616 
  OUT, CRTCREG, 5, CRTCVAL, 0x00,
617 
  OUT, CRTCREG, 6, CRTCVAL, 0x6c,
618 
  OUT, CRTCREG, 7, CRTCVAL, 0x1f,
619 
  OUT, CRTCREG, 8, CRTCVAL, 0x00,
620 
  OUT, CRTCREG, 9, CRTCVAL, 0x00,
621 
  OUT, CRTCREG, 10, CRTCVAL, 0x00,
622 
  OUT, CRTCREG, 11, CRTCVAL, 0x00,
623 
  OUT, CRTCREG, 12, CRTCVAL, 0x00,
624 
  OUT, CRTCREG, 13, CRTCVAL, 0x00,
625 
  OUT, CRTCREG, 14, CRTCVAL, 0x00,
626 
  OUT, CRTCREG, 15, CRTCVAL, 0x00,
627 
  OUT, CRTCREG, 16, CRTCVAL, 0x5e,
628 
  OUT, CRTCREG, 17, CRTCVAL, 0x2b,
629 
  OUT, CRTCREG, 18, CRTCVAL, 0x5d,
630 
  OUT, CRTCREG, 19, CRTCVAL, 0x28,
631 
  OUT, CRTCREG, 20, CRTCVAL, 0x0f,
632 
  OUT, CRTCREG, 21, CRTCVAL, 0x5f,
633 
  OUT, CRTCREG, 22, CRTCVAL, 0x0a,
634 
  OUT, CRTCREG, 23, CRTCVAL, 0xe3,
635 
  OUT, CRTCREG, 24, CRTCVAL, 0xff,
636 
 
637 
  /* Graphics controller */
638 
  OUT, GENREG2, 0x00, 0, 0,
639 
  OUT, GENREG3, 0x01, 0, 0,
640 
  OUT, GRREG, 0, GRVAL, 0x00,
641 
  OUT, GRREG, 1, GRVAL, 0x00,
642 
  OUT, GRREG, 2, GRVAL, 0x00,
643 
  OUT, GRREG, 3, GRVAL, 0x00,
644 
  OUT, GRREG, 4, GRVAL, 0x00,
645 
  OUT, GRREG, 5, GRVAL, 0x00,
646 
  OUT, GRREG, 6, GRVAL, 0x05,
647 
  OUT, GRREG, 7, GRVAL, 0x0f,
648 
  OUT, GRREG, 8, GRVAL, 0xff,
649 
 
650 
  /* Reset attribute flip/flop */
651 
  IN, ATTRREG, 0, 0, 0,
652 
 
653 
  /* Palette */
654 
  OUT, PALREG, 0, PALREG, 0x00,
655 
  OUT, PALREG, 1, PALREG, 0x01,
656 
  OUT, PALREG, 2, PALREG, 0x02,
657 
  OUT, PALREG, 3, PALREG, 0x03,
658 
  OUT, PALREG, 4, PALREG, 0x04,
659 
  OUT, PALREG, 5, PALREG, 0x05,
660 
  OUT, PALREG, 6, PALREG, 0x06,
661 
  OUT, PALREG, 7, PALREG, 0x07,
662 
  OUT, PALREG, 8, PALREG, 0x38,
663 
  OUT, PALREG, 9, PALREG, 0x39,
664 
  OUT, PALREG, 10, PALREG, 0x3a,
665 
  OUT, PALREG, 11, PALREG, 0x3b,
666 
  OUT, PALREG, 12, PALREG, 0x3c,
667 
  OUT, PALREG, 13, PALREG, 0x3d,
668 
  OUT, PALREG, 14, PALREG, 0x3e,
669 
  OUT, PALREG, 15, PALREG, 0x3f,
670 
  OUT, PALREG, 16, PALREG, 0x01,
671 
  OUT, PALREG, 17, PALREG, 0x00,
672 
  OUT, PALREG, 18, PALREG, 0x0f,
673 
  OUT, PALREG, 19, PALREG, 0x00,
674 
 
675 
  /* Enable palette */
676 
  OUT, PALREG, 0x20, 0, 0,
677 
 
678 
  /* End of table */
679 
  DONE, 0, 0, 0, 0
680 
};
681 
 
682 
 
683 
/* EGA 80x25 text (BIOS mode 3).
684 
 */
685 
static REGIO graph_off[] = {
686 
  /* Reset attr F/F */
687 
  IN, ATTRREG, 0, 0, 0,
688 
 
689 
  /* Disable palette */
690 
  OUT, PALREG, 0, 0, 0,
691 
 
692 
  /* Reset sequencer regs */
693 
  OUT, SEQREG, 0, SEQVAL, 1,
694 
  OUT, SEQREG, 1, SEQVAL, 1,
695 
  OUT, SEQREG, 2, SEQVAL, 3,
696 
  OUT, SEQREG, 3, SEQVAL, 0,
697 
  OUT, SEQREG, 4, SEQVAL, 3,
698 
 
699 
  /* Misc out reg */
700 
  OUT, GENREG1, 0xa7, 0, 0,
701 
 
702 
  /* Sequencer enable */
703 
  OUT, SEQREG, 0, SEQVAL, 3,
704 
 
705 
  /* Crtc */
706 
  OUT, CRTCREG, 0, CRTCVAL, 0x5b,        /* horiz total */
707 
  OUT, CRTCREG, 1, CRTCVAL, 0x4f,       /* horiz end */
708 
  OUT, CRTCREG, 2, CRTCVAL, 0x53,       /* horiz blank */
709 
  OUT, CRTCREG, 3, CRTCVAL, 0x37,       /* end blank */
710 
  OUT, CRTCREG, 4, CRTCVAL, 0x51,       /* horiz retrace */
711 
  OUT, CRTCREG, 5, CRTCVAL, 0x5b,       /* end retrace */
712 
  OUT, CRTCREG, 6, CRTCVAL, 0x6c,       /* vert total */
713 
  OUT, CRTCREG, 7, CRTCVAL, 0x1f,       /* overflows */
714 
  OUT, CRTCREG, 8, CRTCVAL, 0x00,       /* row scan */
715 
  OUT, CRTCREG, 9, CRTCVAL, 0x0d,       /* max scan line */
716 
  OUT, CRTCREG, 10, CRTCVAL, 0x00,      /* cursor start */
717 
  OUT, CRTCREG, 11, CRTCVAL, 0x0f,      /* cursor end */
718 
  OUT, CRTCREG, 12, CRTCVAL, 0x00,      /* start high addr */
719 
  OUT, CRTCREG, 13, CRTCVAL, 0x00,      /* low addr */
720 
  OUT, CRTCREG, 14, CRTCVAL, 0x00,      /* cursor high */
721 
  OUT, CRTCREG, 15, CRTCVAL, 0x00,      /* cursor low */
722 
  OUT, CRTCREG, 16, CRTCVAL, 0x5e,      /* vert retrace */
723 
  OUT, CRTCREG, 17, CRTCVAL, 0x2b,      /* retrace end */
724 
  OUT, CRTCREG, 18, CRTCVAL, 0x5d,      /* vert end */
725 
  OUT, CRTCREG, 19, CRTCVAL, 0x28,      /* offset */
726 
  OUT, CRTCREG, 20, CRTCVAL, 0x0f,      /* underline */
727 
  OUT, CRTCREG, 21, CRTCVAL, 0x5e,      /* vert blank */
728 
  OUT, CRTCREG, 22, CRTCVAL, 0x0a,      /* end blank */
729 
  OUT, CRTCREG, 23, CRTCVAL, 0xa3,      /* crt mode */
730 
  OUT, CRTCREG, 24, CRTCVAL, 0xff,      /* line compare */
731 
 
732 
  /* Graphics controller */
733 
  OUT, GENREG2, 0x00, 0, 0,
734 
  OUT, GENREG3, 0x01, 0, 0,
735 
  OUT, GRREG, 0, GRVAL, 0x00,
736 
  OUT, GRREG, 1, GRVAL, 0x00,
737 
  OUT, GRREG, 2, GRVAL, 0x00,
738 
  OUT, GRREG, 3, GRVAL, 0x00,
739 
  OUT, GRREG, 4, GRVAL, 0x00,
740 
  OUT, GRREG, 5, GRVAL, 0x10,
741 
  OUT, GRREG, 6, GRVAL, 0x0e,
742 
  OUT, GRREG, 7, GRVAL, 0x00,
743 
  OUT, GRREG, 8, GRVAL, 0xff,
744 
 
745 
  /* Reset attribute flip/flop */
746 
  IN, ATTRREG, 0, 0, 0,
747 
 
748 
  /* Palette */
749 
  OUT, PALREG, 0, PALREG, 0x00,
750 
  OUT, PALREG, 1, PALREG, 0x01,
751 
  OUT, PALREG, 2, PALREG, 0x02,
752 
  OUT, PALREG, 3, PALREG, 0x03,
753 
  OUT, PALREG, 4, PALREG, 0x04,
754 
  OUT, PALREG, 5, PALREG, 0x05,
755 
  OUT, PALREG, 6, PALREG, 0x14,
756 
  OUT, PALREG, 7, PALREG, 0x07,
757 
  OUT, PALREG, 8, PALREG, 0x38,
758 
  OUT, PALREG, 9, PALREG, 0x39,
759 
  OUT, PALREG, 10, PALREG, 0x3a,
760 
  OUT, PALREG, 11, PALREG, 0x3b,
761 
  OUT, PALREG, 12, PALREG, 0x3c,
762 
  OUT, PALREG, 13, PALREG, 0x3d,
763 
  OUT, PALREG, 14, PALREG, 0x3e,
764 
  OUT, PALREG, 15, PALREG, 0x3f,
765 
  OUT, PALREG, 16, PALREG, 0x08,
766 
  OUT, PALREG, 17, PALREG, 0x00,
767 
  OUT, PALREG, 18, PALREG, 0x0f,
768 
  OUT, PALREG, 19, PALREG, 0x00,
769 
 
770 
  /* Enable palette */
771 
  OUT, PALREG, 0x20, 0, 0,
772 
 
773 
  /* End of table */
774 
  DONE, 0, 0, 0, 0
775 
};
776 
 
777 
#endif

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