1 | /* |
---|
2 | * Copyright (c) 1999 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 <i386_io.h> |
---|
10 | |
---|
11 | #ifdef __rtems__ |
---|
12 | #define ROMFONT 0 /* =0 no bios rom fonts available*/ |
---|
13 | #else |
---|
14 | #define ROMFONT 1 /* =1 uses PC rom fonts */ |
---|
15 | #endif |
---|
16 | |
---|
17 | /* defines are defined in device.h of the MicroWindows package */ |
---|
18 | #define MODE_SET 0 /* draw pixels as given (default) */ |
---|
19 | #define MODE_XOR 1 /* draw pixels using XOR */ |
---|
20 | #define MODE_OR 2 /* draw pixels using OR (notimp)*/ |
---|
21 | #define MODE_AND 3 /* draw pixels using AND (notimp)*/ |
---|
22 | #define MODE_MAX 3 |
---|
23 | typedef int MODE; /* drawing mode*/ |
---|
24 | |
---|
25 | /* Define one and only one of the following to be nonzero*/ |
---|
26 | #define VGA_ET4000 0 /* TSENG LABS ET4000 chip 800x600*/ |
---|
27 | #define VGA_STANDARD 1 /* standard VGA 640x480*/ |
---|
28 | #define EGA_STANDARD 0 /* standard EGA 640x350*/ |
---|
29 | |
---|
30 | #define DONE 0 |
---|
31 | #define IN 1 |
---|
32 | #define OUT 2 |
---|
33 | |
---|
34 | #define RAM_SCAN_LINES 32 /* number of scan lines in fonts in RAM */ |
---|
35 | #define FONT_CHARS 256 /* number of characters in font tables */ |
---|
36 | #define CHAR_WIDTH 8 /* number of pixels for character width */ |
---|
37 | |
---|
38 | #define PALREG 0x3c0 |
---|
39 | #define SEQREG 0x3c4 |
---|
40 | #define SEQVAL 0x3c5 |
---|
41 | #define GRREG 0x3ce |
---|
42 | #define GRVAL 0x3cf |
---|
43 | #define ATTRREG 0x3da |
---|
44 | #define CRTCREG 0x3d4 |
---|
45 | #define CRTCVAL 0x3d5 |
---|
46 | |
---|
47 | #define GENREG1 0x3c2 |
---|
48 | #define GENREG2 0x3cc |
---|
49 | #define GENREG3 0x3ca |
---|
50 | |
---|
51 | #define DATA_ROTATE 3 /* register number for data rotate */ |
---|
52 | |
---|
53 | typedef struct { |
---|
54 | int action; |
---|
55 | int port1; |
---|
56 | int data1; |
---|
57 | int port2; |
---|
58 | int data2; |
---|
59 | } REGIO; |
---|
60 | |
---|
61 | #if ROMFONT |
---|
62 | extern FARADDR rom_char_addr; /* address of ROM font*/ |
---|
63 | extern int ROM_CHAR_HEIGHT; /* ROM character height*/ |
---|
64 | #endif |
---|
65 | |
---|
66 | /* local data*/ |
---|
67 | static REGIO graphics_on[]; |
---|
68 | static REGIO graph_off[]; |
---|
69 | |
---|
70 | /* entry points*/ |
---|
71 | void ega_hwinit(void); |
---|
72 | void ega_hwterm(void); |
---|
73 | |
---|
74 | /* local routines*/ |
---|
75 | static void writeregs(REGIO *rp); |
---|
76 | static void out_word(unsigned int p,unsigned int d); |
---|
77 | static void setmode(MODE mode); |
---|
78 | |
---|
79 | void |
---|
80 | ega_hwinit(void) |
---|
81 | { |
---|
82 | writeregs(graphics_on); |
---|
83 | } |
---|
84 | |
---|
85 | void |
---|
86 | ega_hwterm(void) |
---|
87 | { |
---|
88 | setmode(MODE_SET); |
---|
89 | |
---|
90 | /* Copy character table from ROM back into bit plane 2 before turning |
---|
91 | * off graphics. |
---|
92 | */ |
---|
93 | out_word(SEQREG, 0x0100); /* syn reset */ |
---|
94 | out_word(SEQREG, 0x0402); /* cpu writes only to map 2 */ |
---|
95 | out_word(SEQREG, 0x0704); /* sequential addressing */ |
---|
96 | out_word(SEQREG, 0x0300); /* clear synchronous reset */ |
---|
97 | |
---|
98 | out_word(GRREG, 0x0204); /* select map 2 for CPU reads */ |
---|
99 | out_word(GRREG, 0x0005); /* disable odd-even addressing */ |
---|
100 | |
---|
101 | #if ROMFONT |
---|
102 | { |
---|
103 | FARADDR srcoffset; |
---|
104 | FARADDR destoffset; |
---|
105 | int data; |
---|
106 | int ch; |
---|
107 | int row; |
---|
108 | |
---|
109 | srcoffset = rom_char_addr; |
---|
110 | destoffset = EGA_BASE; |
---|
111 | for (ch = 0; ch < FONT_CHARS; ch++) { |
---|
112 | for(row = 0; row < ROM_CHAR_HEIGHT; row++) { |
---|
113 | data = GETBYTE_FP(srcoffset++); |
---|
114 | PUTBYTE_FP(destoffset++, data); |
---|
115 | } |
---|
116 | destoffset += (RAM_SCAN_LINES - ROM_CHAR_HEIGHT); |
---|
117 | } |
---|
118 | } |
---|
119 | #endif |
---|
120 | |
---|
121 | /* Finally set the registers back for text mode. */ |
---|
122 | writeregs(graph_off); |
---|
123 | } |
---|
124 | |
---|
125 | /* Set the graphics registers as indicated by the given table */ |
---|
126 | static void |
---|
127 | writeregs(REGIO *rp) |
---|
128 | { |
---|
129 | for (; rp->action != DONE; rp++) { |
---|
130 | switch (rp->action) { |
---|
131 | case IN: |
---|
132 | inp(rp->port1); |
---|
133 | break; |
---|
134 | case OUT: |
---|
135 | outp(rp->port1, rp->data1); |
---|
136 | if (rp->port2) |
---|
137 | outp(rp->port2, rp->data2); |
---|
138 | break; |
---|
139 | } |
---|
140 | } |
---|
141 | } |
---|
142 | |
---|
143 | /* Output a word to an I/O port. */ |
---|
144 | static void |
---|
145 | out_word(unsigned int p,unsigned int d) |
---|
146 | { |
---|
147 | outp(p, d & 0xff); |
---|
148 | outp(p + 1, (d >> 8) & 0xff); |
---|
149 | } |
---|
150 | |
---|
151 | /* Values for the data rotate register to implement drawing modes. */ |
---|
152 | static unsigned char mode_table[MODE_MAX + 1] = { |
---|
153 | 0x00, 0x18, 0x10, 0x08 |
---|
154 | }; |
---|
155 | |
---|
156 | /* Set the drawing mode. |
---|
157 | * This is either SET, OR, AND, or XOR. |
---|
158 | */ |
---|
159 | static void |
---|
160 | setmode(MODE mode) |
---|
161 | { |
---|
162 | if (mode > MODE_MAX) |
---|
163 | return; |
---|
164 | outp(GRREG, DATA_ROTATE); |
---|
165 | outp(GRVAL, mode_table[mode]); |
---|
166 | } |
---|
167 | |
---|
168 | #if VGA_ET4000 |
---|
169 | |
---|
170 | /* VGA 800x600 16-color graphics (BIOS mode 0x29). |
---|
171 | */ |
---|
172 | REGIO graphics_on[] = { |
---|
173 | /* Reset attr F/F */ |
---|
174 | IN, ATTRREG, 0, 0, 0, |
---|
175 | |
---|
176 | /* Disable palette */ |
---|
177 | OUT, PALREG, 0, 0, 0, |
---|
178 | |
---|
179 | /* Reset sequencer regs */ |
---|
180 | OUT, SEQREG, 0, SEQVAL, 0, |
---|
181 | OUT, SEQREG, 1, SEQVAL, 1, |
---|
182 | OUT, SEQREG, 2, SEQVAL, 0x0f, |
---|
183 | OUT, SEQREG, 3, SEQVAL, 0, |
---|
184 | OUT, SEQREG, 4, SEQVAL, 6, |
---|
185 | |
---|
186 | /* Misc out reg */ |
---|
187 | OUT, GENREG1, 0xe3, 0, 0, |
---|
188 | |
---|
189 | /* Sequencer enable */ |
---|
190 | OUT, SEQREG, 0, SEQVAL, 0x03, |
---|
191 | |
---|
192 | /* Unprotect crtc regs 0-7 */ |
---|
193 | OUT, CRTCREG, 0x11, CRTCVAL, 0, |
---|
194 | |
---|
195 | /* Crtc */ |
---|
196 | OUT, CRTCREG, 0, CRTCVAL, 0x7a, |
---|
197 | OUT, CRTCREG, 1, CRTCVAL, 0x63, |
---|
198 | OUT, CRTCREG, 2, CRTCVAL, 0x64, |
---|
199 | OUT, CRTCREG, 3, CRTCVAL, 0x1d, |
---|
200 | OUT, CRTCREG, 4, CRTCVAL, 0x68, |
---|
201 | OUT, CRTCREG, 5, CRTCVAL, 0x9a, |
---|
202 | OUT, CRTCREG, 6, CRTCVAL, 0x78, |
---|
203 | OUT, CRTCREG, 7, CRTCVAL, 0xf0, |
---|
204 | OUT, CRTCREG, 8, CRTCVAL, 0x00, |
---|
205 | OUT, CRTCREG, 9, CRTCVAL, 0x60, |
---|
206 | OUT, CRTCREG, 10, CRTCVAL, 0x00, |
---|
207 | OUT, CRTCREG, 11, CRTCVAL, 0x00, |
---|
208 | OUT, CRTCREG, 12, CRTCVAL, 0x00, |
---|
209 | OUT, CRTCREG, 13, CRTCVAL, 0x00, |
---|
210 | OUT, CRTCREG, 14, CRTCVAL, 0x00, |
---|
211 | OUT, CRTCREG, 15, CRTCVAL, 0x00, |
---|
212 | OUT, CRTCREG, 16, CRTCVAL, 0x5c, |
---|
213 | OUT, CRTCREG, 17, CRTCVAL, 0x8e, |
---|
214 | OUT, CRTCREG, 18, CRTCVAL, 0x57, |
---|
215 | OUT, CRTCREG, 19, CRTCVAL, 0x32, |
---|
216 | OUT, CRTCREG, 20, CRTCVAL, 0x00, |
---|
217 | OUT, CRTCREG, 21, CRTCVAL, 0x5b, |
---|
218 | OUT, CRTCREG, 22, CRTCVAL, 0x75, |
---|
219 | OUT, CRTCREG, 23, CRTCVAL, 0xc3, |
---|
220 | OUT, CRTCREG, 24, CRTCVAL, 0xff, |
---|
221 | |
---|
222 | /* Graphics controller */ |
---|
223 | OUT, GENREG2, 0x00, 0, 0, |
---|
224 | OUT, GENREG3, 0x01, 0, 0, |
---|
225 | OUT, GRREG, 0, GRVAL, 0x00, |
---|
226 | OUT, GRREG, 1, GRVAL, 0x00, |
---|
227 | OUT, GRREG, 2, GRVAL, 0x00, |
---|
228 | OUT, GRREG, 3, GRVAL, 0x00, |
---|
229 | OUT, GRREG, 4, GRVAL, 0x00, |
---|
230 | OUT, GRREG, 5, GRVAL, 0x00, |
---|
231 | OUT, GRREG, 6, GRVAL, 0x05, |
---|
232 | OUT, GRREG, 7, GRVAL, 0x0f, |
---|
233 | OUT, GRREG, 8, GRVAL, 0xff, |
---|
234 | |
---|
235 | /* Reset attribute flip/flop */ |
---|
236 | IN, ATTRREG, 0, 0, 0, |
---|
237 | |
---|
238 | /* Palette */ |
---|
239 | OUT, PALREG, 0, PALREG, 0x00, |
---|
240 | OUT, PALREG, 1, PALREG, 0x01, |
---|
241 | OUT, PALREG, 2, PALREG, 0x02, |
---|
242 | OUT, PALREG, 3, PALREG, 0x03, |
---|
243 | OUT, PALREG, 4, PALREG, 0x04, |
---|
244 | OUT, PALREG, 5, PALREG, 0x05, |
---|
245 | OUT, PALREG, 6, PALREG, 0x06, |
---|
246 | OUT, PALREG, 7, PALREG, 0x07, |
---|
247 | OUT, PALREG, 8, PALREG, 0x38, |
---|
248 | OUT, PALREG, 9, PALREG, 0x39, |
---|
249 | OUT, PALREG, 10, PALREG, 0x3a, |
---|
250 | OUT, PALREG, 11, PALREG, 0x3b, |
---|
251 | OUT, PALREG, 12, PALREG, 0x3c, |
---|
252 | OUT, PALREG, 13, PALREG, 0x3d, |
---|
253 | OUT, PALREG, 14, PALREG, 0x3e, |
---|
254 | OUT, PALREG, 15, PALREG, 0x3f, |
---|
255 | OUT, PALREG, 16, PALREG, 0x01, |
---|
256 | OUT, PALREG, 17, PALREG, 0x00, |
---|
257 | OUT, PALREG, 18, PALREG, 0x0f, |
---|
258 | OUT, PALREG, 19, PALREG, 0x00, |
---|
259 | |
---|
260 | /* Enable palette */ |
---|
261 | OUT, PALREG, 0x20, 0, 0, |
---|
262 | |
---|
263 | /* End of table */ |
---|
264 | DONE, 0, 0, 0, 0 |
---|
265 | }; |
---|
266 | |
---|
267 | /* VGA 80x25 text (BIOS mode 3). |
---|
268 | */ |
---|
269 | static REGIO graph_off[] = { |
---|
270 | /* Reset attr F/F */ |
---|
271 | IN, ATTRREG, 0, 0, 0, |
---|
272 | |
---|
273 | /* Disable palette */ |
---|
274 | OUT, PALREG, 0, 0, 0, |
---|
275 | |
---|
276 | /* Reset sequencer regs */ |
---|
277 | OUT, SEQREG, 0, SEQVAL, 1, |
---|
278 | OUT, SEQREG, 1, SEQVAL, 1, |
---|
279 | OUT, SEQREG, 2, SEQVAL, 3, |
---|
280 | OUT, SEQREG, 3, SEQVAL, 0, |
---|
281 | OUT, SEQREG, 4, SEQVAL, 2, |
---|
282 | |
---|
283 | /* Misc out reg */ |
---|
284 | OUT, GENREG1, 0x63, 0, 0, |
---|
285 | |
---|
286 | /* Sequencer enable */ |
---|
287 | OUT, SEQREG, 0, SEQVAL, 3, |
---|
288 | |
---|
289 | /* Unprotect crtc regs 0-7 */ |
---|
290 | OUT, CRTCREG, 0x11, CRTCVAL, 0, |
---|
291 | |
---|
292 | /* Crtc */ |
---|
293 | OUT, CRTCREG, 0, CRTCVAL, 0x5f, /* horiz total */ |
---|
294 | OUT, CRTCREG, 1, CRTCVAL, 0x4f, /* horiz end */ |
---|
295 | OUT, CRTCREG, 2, CRTCVAL, 0x50, /* horiz blank */ |
---|
296 | OUT, CRTCREG, 3, CRTCVAL, 0x82, /* end blank */ |
---|
297 | OUT, CRTCREG, 4, CRTCVAL, 0x55, /* horiz retrace */ |
---|
298 | OUT, CRTCREG, 5, CRTCVAL, 0x81, /* end retrace */ |
---|
299 | OUT, CRTCREG, 6, CRTCVAL, 0xbf, /* vert total */ |
---|
300 | OUT, CRTCREG, 7, CRTCVAL, 0x1f, /* overflows */ |
---|
301 | OUT, CRTCREG, 8, CRTCVAL, 0x00, /* row scan */ |
---|
302 | OUT, CRTCREG, 9, CRTCVAL, 0x4f, /* max scan line */ |
---|
303 | OUT, CRTCREG, 10, CRTCVAL, 0x00, /* cursor start */ |
---|
304 | OUT, CRTCREG, 11, CRTCVAL, 0x0f, /* cursor end */ |
---|
305 | OUT, CRTCREG, 12, CRTCVAL, 0x0e, /* start high addr */ |
---|
306 | OUT, CRTCREG, 13, CRTCVAL, 0xb0, /* low addr */ |
---|
307 | OUT, CRTCREG, 14, CRTCVAL, 0x16, /* cursor high */ |
---|
308 | OUT, CRTCREG, 15, CRTCVAL, 0x30, /* cursor low */ |
---|
309 | OUT, CRTCREG, 16, CRTCVAL, 0x9c, /* vert retrace */ |
---|
310 | OUT, CRTCREG, 17, CRTCVAL, 0x8e, /* retrace end */ |
---|
311 | OUT, CRTCREG, 18, CRTCVAL, 0x8f, /* vert end */ |
---|
312 | OUT, CRTCREG, 19, CRTCVAL, 0x28, /* offset */ |
---|
313 | OUT, CRTCREG, 20, CRTCVAL, 0x1f, /* underline */ |
---|
314 | OUT, CRTCREG, 21, CRTCVAL, 0x96, /* vert blank */ |
---|
315 | OUT, CRTCREG, 22, CRTCVAL, 0xb9, /* end blank */ |
---|
316 | OUT, CRTCREG, 23, CRTCVAL, 0xa3, /* crt mode */ |
---|
317 | OUT, CRTCREG, 24, CRTCVAL, 0xff, /* line compare */ |
---|
318 | |
---|
319 | /* Graphics controller */ |
---|
320 | OUT, GENREG2, 0x00, 0, 0, |
---|
321 | OUT, GENREG3, 0x01, 0, 0, |
---|
322 | OUT, GRREG, 0, GRVAL, 0x00, |
---|
323 | OUT, GRREG, 1, GRVAL, 0x00, |
---|
324 | OUT, GRREG, 2, GRVAL, 0x00, |
---|
325 | OUT, GRREG, 3, GRVAL, 0x00, |
---|
326 | OUT, GRREG, 4, GRVAL, 0x00, |
---|
327 | OUT, GRREG, 5, GRVAL, 0x10, |
---|
328 | OUT, GRREG, 6, GRVAL, 0x0e, |
---|
329 | OUT, GRREG, 7, GRVAL, 0x00, |
---|
330 | OUT, GRREG, 8, GRVAL, 0xff, |
---|
331 | |
---|
332 | /* Reset attribute flip/flop */ |
---|
333 | IN, ATTRREG, 0, 0, 0, |
---|
334 | |
---|
335 | /* Palette */ |
---|
336 | OUT, PALREG, 0, PALREG, 0x00, |
---|
337 | OUT, PALREG, 1, PALREG, 0x01, |
---|
338 | OUT, PALREG, 2, PALREG, 0x02, |
---|
339 | OUT, PALREG, 3, PALREG, 0x03, |
---|
340 | OUT, PALREG, 4, PALREG, 0x04, |
---|
341 | OUT, PALREG, 5, PALREG, 0x05, |
---|
342 | OUT, PALREG, 6, PALREG, 0x06, |
---|
343 | OUT, PALREG, 7, PALREG, 0x07, |
---|
344 | OUT, PALREG, 8, PALREG, 0x10, |
---|
345 | OUT, PALREG, 9, PALREG, 0x11, |
---|
346 | OUT, PALREG, 10, PALREG, 0x12, |
---|
347 | OUT, PALREG, 11, PALREG, 0x13, |
---|
348 | OUT, PALREG, 12, PALREG, 0x14, |
---|
349 | OUT, PALREG, 13, PALREG, 0x15, |
---|
350 | OUT, PALREG, 14, PALREG, 0x16, |
---|
351 | OUT, PALREG, 15, PALREG, 0x17, |
---|
352 | OUT, PALREG, 16, PALREG, 0x08, |
---|
353 | OUT, PALREG, 17, PALREG, 0x00, |
---|
354 | OUT, PALREG, 18, PALREG, 0x0f, |
---|
355 | OUT, PALREG, 19, PALREG, 0x00, |
---|
356 | |
---|
357 | /* Enable palette */ |
---|
358 | OUT, PALREG, 0x20, 0, 0, |
---|
359 | |
---|
360 | /* End of table */ |
---|
361 | DONE, 0, 0, 0, 0 |
---|
362 | }; |
---|
363 | |
---|
364 | #endif |
---|
365 | |
---|
366 | #if VGA_STANDARD |
---|
367 | |
---|
368 | /* VGA 640x480 16-color graphics (BIOS mode 0x12). |
---|
369 | */ |
---|
370 | static REGIO graphics_on[] = { |
---|
371 | /* Reset attr F/F */ |
---|
372 | { IN, ATTRREG, 0, 0, 0 }, |
---|
373 | |
---|
374 | /* Disable palette */ |
---|
375 | { OUT, PALREG, 0, 0, 0 }, |
---|
376 | |
---|
377 | /* Reset sequencer regs */ |
---|
378 | { OUT, SEQREG, 0, SEQVAL, 0 }, |
---|
379 | { OUT, SEQREG, 1, SEQVAL, 1 }, |
---|
380 | { OUT, SEQREG, 2, SEQVAL, 0x0f }, |
---|
381 | { OUT, SEQREG, 3, SEQVAL, 0 }, |
---|
382 | { OUT, SEQREG, 4, SEQVAL, 6 }, |
---|
383 | |
---|
384 | /* Misc out reg */ |
---|
385 | { OUT, GENREG1, 0xe3, 0, 0 }, |
---|
386 | |
---|
387 | /* Sequencer enable */ |
---|
388 | { OUT, SEQREG, 0, SEQVAL, 0x03 }, |
---|
389 | |
---|
390 | /* Unprotect crtc regs 0-7 */ |
---|
391 | { OUT, CRTCREG, 0x11, CRTCVAL, 0 }, |
---|
392 | |
---|
393 | /* Crtc */ |
---|
394 | { OUT, CRTCREG, 0, CRTCVAL, 0x5f }, |
---|
395 | { OUT, CRTCREG, 1, CRTCVAL, 0x4f }, |
---|
396 | { OUT, CRTCREG, 2, CRTCVAL, 0x50 }, |
---|
397 | { OUT, CRTCREG, 3, CRTCVAL, 0x82 }, |
---|
398 | { OUT, CRTCREG, 4, CRTCVAL, 0x54 }, |
---|
399 | { OUT, CRTCREG, 5, CRTCVAL, 0x80 }, |
---|
400 | { OUT, CRTCREG, 6, CRTCVAL, 0x0b }, |
---|
401 | { OUT, CRTCREG, 7, CRTCVAL, 0x3e }, |
---|
402 | { OUT, CRTCREG, 8, CRTCVAL, 0x00 }, |
---|
403 | { OUT, CRTCREG, 9, CRTCVAL, 0x40 }, |
---|
404 | { OUT, CRTCREG, 10, CRTCVAL, 0x00 }, |
---|
405 | { OUT, CRTCREG, 11, CRTCVAL, 0x00 }, |
---|
406 | { OUT, CRTCREG, 12, CRTCVAL, 0x00 }, |
---|
407 | { OUT, CRTCREG, 13, CRTCVAL, 0x00 }, |
---|
408 | { OUT, CRTCREG, 14, CRTCVAL, 0x00 }, |
---|
409 | { OUT, CRTCREG, 15, CRTCVAL, 0x59 }, |
---|
410 | { OUT, CRTCREG, 16, CRTCVAL, 0xea }, |
---|
411 | { OUT, CRTCREG, 17, CRTCVAL, 0x8c }, |
---|
412 | { OUT, CRTCREG, 18, CRTCVAL, 0xdf }, |
---|
413 | { OUT, CRTCREG, 19, CRTCVAL, 0x28 }, |
---|
414 | { OUT, CRTCREG, 20, CRTCVAL, 0x00 }, |
---|
415 | { OUT, CRTCREG, 21, CRTCVAL, 0xe7 }, |
---|
416 | { OUT, CRTCREG, 22, CRTCVAL, 0x04 }, |
---|
417 | { OUT, CRTCREG, 23, CRTCVAL, 0xe3 }, |
---|
418 | { OUT, CRTCREG, 24, CRTCVAL, 0xff }, |
---|
419 | |
---|
420 | /* Graphics controller */ |
---|
421 | { OUT, GENREG2, 0x00, 0, 0 }, |
---|
422 | { OUT, GENREG3, 0x01, 0, 0 }, |
---|
423 | { OUT, GRREG, 0, GRVAL, 0x00 }, |
---|
424 | { OUT, GRREG, 1, GRVAL, 0x00 }, |
---|
425 | { OUT, GRREG, 2, GRVAL, 0x00 }, |
---|
426 | { OUT, GRREG, 3, GRVAL, 0x00 }, |
---|
427 | { OUT, GRREG, 4, GRVAL, 0x00 }, |
---|
428 | { OUT, GRREG, 5, GRVAL, 0x00 }, |
---|
429 | { OUT, GRREG, 6, GRVAL, 0x05 }, |
---|
430 | { OUT, GRREG, 7, GRVAL, 0x0f }, |
---|
431 | { OUT, GRREG, 8, GRVAL, 0xff }, |
---|
432 | |
---|
433 | /* Reset attribute flip/flop */ |
---|
434 | { IN, ATTRREG, 0, 0, 0 }, |
---|
435 | |
---|
436 | /* Palette */ |
---|
437 | { OUT, PALREG, 0, PALREG, 0x00 }, |
---|
438 | { OUT, PALREG, 1, PALREG, 0x01 }, |
---|
439 | { OUT, PALREG, 2, PALREG, 0x02 }, |
---|
440 | { OUT, PALREG, 3, PALREG, 0x03 }, |
---|
441 | { OUT, PALREG, 4, PALREG, 0x04 }, |
---|
442 | { OUT, PALREG, 5, PALREG, 0x05 }, |
---|
443 | { OUT, PALREG, 6, PALREG, 0x06 }, |
---|
444 | { OUT, PALREG, 7, PALREG, 0x07 }, |
---|
445 | { OUT, PALREG, 8, PALREG, 0x38 }, |
---|
446 | { OUT, PALREG, 9, PALREG, 0x39 }, |
---|
447 | { OUT, PALREG, 10, PALREG, 0x3a }, |
---|
448 | { OUT, PALREG, 11, PALREG, 0x3b }, |
---|
449 | { OUT, PALREG, 12, PALREG, 0x3c }, |
---|
450 | { OUT, PALREG, 13, PALREG, 0x3d }, |
---|
451 | { OUT, PALREG, 14, PALREG, 0x3e }, |
---|
452 | { OUT, PALREG, 15, PALREG, 0x3f }, |
---|
453 | { OUT, PALREG, 16, PALREG, 0x01 }, |
---|
454 | { OUT, PALREG, 17, PALREG, 0x00 }, |
---|
455 | { OUT, PALREG, 18, PALREG, 0x0f }, |
---|
456 | { OUT, PALREG, 19, PALREG, 0x00 }, |
---|
457 | |
---|
458 | /* Enable palette */ |
---|
459 | { OUT, PALREG, 0x20, 0, 0 }, |
---|
460 | |
---|
461 | /* End of table */ |
---|
462 | { DONE, 0, 0, 0, 0 } |
---|
463 | }; |
---|
464 | |
---|
465 | /* VGA 80x25 text (BIOS mode 3). |
---|
466 | */ |
---|
467 | static REGIO graph_off[] = { |
---|
468 | /* Reset attr F/F */ |
---|
469 | { IN, ATTRREG, 0, 0, 0 }, |
---|
470 | |
---|
471 | /* Disable palette */ |
---|
472 | { OUT, PALREG, 0, 0, 0 }, |
---|
473 | |
---|
474 | /* Reset sequencer regs */ |
---|
475 | { OUT, SEQREG, 0, SEQVAL, 1 }, |
---|
476 | { OUT, SEQREG, 1, SEQVAL, 1 }, |
---|
477 | { OUT, SEQREG, 2, SEQVAL, 3 }, |
---|
478 | { OUT, SEQREG, 3, SEQVAL, 0 }, |
---|
479 | { OUT, SEQREG, 4, SEQVAL, 2 }, |
---|
480 | |
---|
481 | /* Misc out reg */ |
---|
482 | { OUT, GENREG1, 0x63, 0, 0 }, |
---|
483 | |
---|
484 | /* Sequencer enable */ |
---|
485 | { OUT, SEQREG, 0, SEQVAL, 3 }, |
---|
486 | |
---|
487 | /* Unprotect crtc regs 0-7 */ |
---|
488 | { OUT, CRTCREG, 0x11, CRTCVAL, 0 }, |
---|
489 | |
---|
490 | /* Crtc */ |
---|
491 | { OUT, CRTCREG, 0, CRTCVAL, 0x5f }, /* horiz total */ |
---|
492 | { OUT, CRTCREG, 1, CRTCVAL, 0x4f }, /* horiz end */ |
---|
493 | { OUT, CRTCREG, 2, CRTCVAL, 0x50 }, /* horiz blank */ |
---|
494 | { OUT, CRTCREG, 3, CRTCVAL, 0x82 }, /* end blank */ |
---|
495 | { OUT, CRTCREG, 4, CRTCVAL, 0x55 }, /* horiz retrace */ |
---|
496 | { OUT, CRTCREG, 5, CRTCVAL, 0x81 }, /* end retrace */ |
---|
497 | { OUT, CRTCREG, 6, CRTCVAL, 0xbf }, /* vert total */ |
---|
498 | { OUT, CRTCREG, 7, CRTCVAL, 0x1f }, /* overflows */ |
---|
499 | { OUT, CRTCREG, 8, CRTCVAL, 0x00 }, /* row scan */ |
---|
500 | { OUT, CRTCREG, 9, CRTCVAL, 0x4f }, /* max scan line */ |
---|
501 | { OUT, CRTCREG, 10, CRTCVAL, 0x00 }, /* cursor start */ |
---|
502 | { OUT, CRTCREG, 11, CRTCVAL, 0x0f }, /* cursor end */ |
---|
503 | { OUT, CRTCREG, 12, CRTCVAL, 0x0e }, /* start high addr */ |
---|
504 | { OUT, CRTCREG, 13, CRTCVAL, 0xb0 }, /* low addr */ |
---|
505 | { OUT, CRTCREG, 14, CRTCVAL, 0x16 }, /* cursor high */ |
---|
506 | { OUT, CRTCREG, 15, CRTCVAL, 0x30 }, /* cursor low */ |
---|
507 | { OUT, CRTCREG, 16, CRTCVAL, 0x9c }, /* vert retrace */ |
---|
508 | { OUT, CRTCREG, 17, CRTCVAL, 0x8e }, /* retrace end */ |
---|
509 | { OUT, CRTCREG, 18, CRTCVAL, 0x8f }, /* vert end */ |
---|
510 | { OUT, CRTCREG, 19, CRTCVAL, 0x28 }, /* offset */ |
---|
511 | { OUT, CRTCREG, 20, CRTCVAL, 0x1f }, /* underline */ |
---|
512 | { OUT, CRTCREG, 21, CRTCVAL, 0x96 }, /* vert blank */ |
---|
513 | { OUT, CRTCREG, 22, CRTCVAL, 0xb9 }, /* end blank */ |
---|
514 | { OUT, CRTCREG, 23, CRTCVAL, 0xa3 }, /* crt mode */ |
---|
515 | { OUT, CRTCREG, 24, CRTCVAL, 0xff }, /* line compare */ |
---|
516 | |
---|
517 | /* Graphics controller */ |
---|
518 | { OUT, GENREG2, 0x00, 0, 0 }, |
---|
519 | { OUT, GENREG3, 0x01, 0, 0 }, |
---|
520 | { OUT, GRREG, 0, GRVAL, 0x00 }, |
---|
521 | { OUT, GRREG, 1, GRVAL, 0x00 }, |
---|
522 | { OUT, GRREG, 2, GRVAL, 0x00 }, |
---|
523 | { OUT, GRREG, 3, GRVAL, 0x00 }, |
---|
524 | { OUT, GRREG, 4, GRVAL, 0x00 }, |
---|
525 | { OUT, GRREG, 5, GRVAL, 0x10 }, |
---|
526 | { OUT, GRREG, 6, GRVAL, 0x0e }, |
---|
527 | { OUT, GRREG, 7, GRVAL, 0x00 }, |
---|
528 | { OUT, GRREG, 8, GRVAL, 0xff }, |
---|
529 | |
---|
530 | /* Reset attribute flip/flop */ |
---|
531 | { IN, ATTRREG, 0, 0, 0 }, |
---|
532 | |
---|
533 | /* Palette */ |
---|
534 | { OUT, PALREG, 0, PALREG, 0x00 }, |
---|
535 | { OUT, PALREG, 1, PALREG, 0x01 }, |
---|
536 | { OUT, PALREG, 2, PALREG, 0x02 }, |
---|
537 | { OUT, PALREG, 3, PALREG, 0x03 }, |
---|
538 | { OUT, PALREG, 4, PALREG, 0x04 }, |
---|
539 | { OUT, PALREG, 5, PALREG, 0x05 }, |
---|
540 | { OUT, PALREG, 6, PALREG, 0x06 }, |
---|
541 | { OUT, PALREG, 7, PALREG, 0x07 }, |
---|
542 | { OUT, PALREG, 8, PALREG, 0x10 }, |
---|
543 | { OUT, PALREG, 9, PALREG, 0x11 }, |
---|
544 | { OUT, PALREG, 10, PALREG, 0x12 }, |
---|
545 | { OUT, PALREG, 11, PALREG, 0x13 }, |
---|
546 | { OUT, PALREG, 12, PALREG, 0x14 }, |
---|
547 | { OUT, PALREG, 13, PALREG, 0x15 }, |
---|
548 | { OUT, PALREG, 14, PALREG, 0x16 }, |
---|
549 | { OUT, PALREG, 15, PALREG, 0x17 }, |
---|
550 | { OUT, PALREG, 16, PALREG, 0x08 }, |
---|
551 | { OUT, PALREG, 17, PALREG, 0x00 }, |
---|
552 | { OUT, PALREG, 18, PALREG, 0x0f }, |
---|
553 | { OUT, PALREG, 19, PALREG, 0x00 }, |
---|
554 | |
---|
555 | /* Enable palette */ |
---|
556 | { OUT, PALREG, 0x20, 0, 0 }, |
---|
557 | |
---|
558 | /* End of table */ |
---|
559 | { DONE, 0, 0, 0, 0 } |
---|
560 | }; |
---|
561 | |
---|
562 | #endif |
---|
563 | |
---|
564 | #if EGA_STANDARD |
---|
565 | |
---|
566 | /* EGA 640x350 16-color graphics (BIOS mode 0x10). |
---|
567 | */ |
---|
568 | static REGIO graphics_on[] = { |
---|
569 | /* Reset attr F/F */ |
---|
570 | IN, ATTRREG, 0, 0, 0, |
---|
571 | |
---|
572 | /* Disable palette */ |
---|
573 | OUT, PALREG, 0, 0, 0, |
---|
574 | |
---|
575 | /* Reset sequencer regs */ |
---|
576 | OUT, SEQREG, 0, SEQVAL, 0, |
---|
577 | OUT, SEQREG, 1, SEQVAL, 1, |
---|
578 | OUT, SEQREG, 2, SEQVAL, 0x0f, |
---|
579 | OUT, SEQREG, 3, SEQVAL, 0, |
---|
580 | OUT, SEQREG, 4, SEQVAL, 6, |
---|
581 | |
---|
582 | /* Misc out reg */ |
---|
583 | OUT, GENREG1, 0xa7, 0, 0, |
---|
584 | |
---|
585 | /* Sequencer enable */ |
---|
586 | OUT, SEQREG, 0, SEQVAL, 0x03, |
---|
587 | |
---|
588 | /* Unprotect crtc regs 0-7 */ |
---|
589 | OUT, CRTCREG, 0x11, CRTCVAL, 0, |
---|
590 | |
---|
591 | /* Crtc */ |
---|
592 | OUT, CRTCREG, 0, CRTCVAL, 0x5b, |
---|
593 | OUT, CRTCREG, 1, CRTCVAL, 0x4f, |
---|
594 | OUT, CRTCREG, 2, CRTCVAL, 0x53, |
---|
595 | OUT, CRTCREG, 3, CRTCVAL, 0x37, |
---|
596 | OUT, CRTCREG, 4, CRTCVAL, 0x52, |
---|
597 | OUT, CRTCREG, 5, CRTCVAL, 0x00, |
---|
598 | OUT, CRTCREG, 6, CRTCVAL, 0x6c, |
---|
599 | OUT, CRTCREG, 7, CRTCVAL, 0x1f, |
---|
600 | OUT, CRTCREG, 8, CRTCVAL, 0x00, |
---|
601 | OUT, CRTCREG, 9, CRTCVAL, 0x00, |
---|
602 | OUT, CRTCREG, 10, CRTCVAL, 0x00, |
---|
603 | OUT, CRTCREG, 11, CRTCVAL, 0x00, |
---|
604 | OUT, CRTCREG, 12, CRTCVAL, 0x00, |
---|
605 | OUT, CRTCREG, 13, CRTCVAL, 0x00, |
---|
606 | OUT, CRTCREG, 14, CRTCVAL, 0x00, |
---|
607 | OUT, CRTCREG, 15, CRTCVAL, 0x00, |
---|
608 | OUT, CRTCREG, 16, CRTCVAL, 0x5e, |
---|
609 | OUT, CRTCREG, 17, CRTCVAL, 0x2b, |
---|
610 | OUT, CRTCREG, 18, CRTCVAL, 0x5d, |
---|
611 | OUT, CRTCREG, 19, CRTCVAL, 0x28, |
---|
612 | OUT, CRTCREG, 20, CRTCVAL, 0x0f, |
---|
613 | OUT, CRTCREG, 21, CRTCVAL, 0x5f, |
---|
614 | OUT, CRTCREG, 22, CRTCVAL, 0x0a, |
---|
615 | OUT, CRTCREG, 23, CRTCVAL, 0xe3, |
---|
616 | OUT, CRTCREG, 24, CRTCVAL, 0xff, |
---|
617 | |
---|
618 | /* Graphics controller */ |
---|
619 | OUT, GENREG2, 0x00, 0, 0, |
---|
620 | OUT, GENREG3, 0x01, 0, 0, |
---|
621 | OUT, GRREG, 0, GRVAL, 0x00, |
---|
622 | OUT, GRREG, 1, GRVAL, 0x00, |
---|
623 | OUT, GRREG, 2, GRVAL, 0x00, |
---|
624 | OUT, GRREG, 3, GRVAL, 0x00, |
---|
625 | OUT, GRREG, 4, GRVAL, 0x00, |
---|
626 | OUT, GRREG, 5, GRVAL, 0x00, |
---|
627 | OUT, GRREG, 6, GRVAL, 0x05, |
---|
628 | OUT, GRREG, 7, GRVAL, 0x0f, |
---|
629 | OUT, GRREG, 8, GRVAL, 0xff, |
---|
630 | |
---|
631 | /* Reset attribute flip/flop */ |
---|
632 | IN, ATTRREG, 0, 0, 0, |
---|
633 | |
---|
634 | /* Palette */ |
---|
635 | OUT, PALREG, 0, PALREG, 0x00, |
---|
636 | OUT, PALREG, 1, PALREG, 0x01, |
---|
637 | OUT, PALREG, 2, PALREG, 0x02, |
---|
638 | OUT, PALREG, 3, PALREG, 0x03, |
---|
639 | OUT, PALREG, 4, PALREG, 0x04, |
---|
640 | OUT, PALREG, 5, PALREG, 0x05, |
---|
641 | OUT, PALREG, 6, PALREG, 0x06, |
---|
642 | OUT, PALREG, 7, PALREG, 0x07, |
---|
643 | OUT, PALREG, 8, PALREG, 0x38, |
---|
644 | OUT, PALREG, 9, PALREG, 0x39, |
---|
645 | OUT, PALREG, 10, PALREG, 0x3a, |
---|
646 | OUT, PALREG, 11, PALREG, 0x3b, |
---|
647 | OUT, PALREG, 12, PALREG, 0x3c, |
---|
648 | OUT, PALREG, 13, PALREG, 0x3d, |
---|
649 | OUT, PALREG, 14, PALREG, 0x3e, |
---|
650 | OUT, PALREG, 15, PALREG, 0x3f, |
---|
651 | OUT, PALREG, 16, PALREG, 0x01, |
---|
652 | OUT, PALREG, 17, PALREG, 0x00, |
---|
653 | OUT, PALREG, 18, PALREG, 0x0f, |
---|
654 | OUT, PALREG, 19, PALREG, 0x00, |
---|
655 | |
---|
656 | /* Enable palette */ |
---|
657 | OUT, PALREG, 0x20, 0, 0, |
---|
658 | |
---|
659 | /* End of table */ |
---|
660 | DONE, 0, 0, 0, 0 |
---|
661 | }; |
---|
662 | |
---|
663 | /* EGA 80x25 text (BIOS mode 3). |
---|
664 | */ |
---|
665 | static REGIO graph_off[] = { |
---|
666 | /* Reset attr F/F */ |
---|
667 | IN, ATTRREG, 0, 0, 0, |
---|
668 | |
---|
669 | /* Disable palette */ |
---|
670 | OUT, PALREG, 0, 0, 0, |
---|
671 | |
---|
672 | /* Reset sequencer regs */ |
---|
673 | OUT, SEQREG, 0, SEQVAL, 1, |
---|
674 | OUT, SEQREG, 1, SEQVAL, 1, |
---|
675 | OUT, SEQREG, 2, SEQVAL, 3, |
---|
676 | OUT, SEQREG, 3, SEQVAL, 0, |
---|
677 | OUT, SEQREG, 4, SEQVAL, 3, |
---|
678 | |
---|
679 | /* Misc out reg */ |
---|
680 | OUT, GENREG1, 0xa7, 0, 0, |
---|
681 | |
---|
682 | /* Sequencer enable */ |
---|
683 | OUT, SEQREG, 0, SEQVAL, 3, |
---|
684 | |
---|
685 | /* Crtc */ |
---|
686 | OUT, CRTCREG, 0, CRTCVAL, 0x5b, /* horiz total */ |
---|
687 | OUT, CRTCREG, 1, CRTCVAL, 0x4f, /* horiz end */ |
---|
688 | OUT, CRTCREG, 2, CRTCVAL, 0x53, /* horiz blank */ |
---|
689 | OUT, CRTCREG, 3, CRTCVAL, 0x37, /* end blank */ |
---|
690 | OUT, CRTCREG, 4, CRTCVAL, 0x51, /* horiz retrace */ |
---|
691 | OUT, CRTCREG, 5, CRTCVAL, 0x5b, /* end retrace */ |
---|
692 | OUT, CRTCREG, 6, CRTCVAL, 0x6c, /* vert total */ |
---|
693 | OUT, CRTCREG, 7, CRTCVAL, 0x1f, /* overflows */ |
---|
694 | OUT, CRTCREG, 8, CRTCVAL, 0x00, /* row scan */ |
---|
695 | OUT, CRTCREG, 9, CRTCVAL, 0x0d, /* max scan line */ |
---|
696 | OUT, CRTCREG, 10, CRTCVAL, 0x00, /* cursor start */ |
---|
697 | OUT, CRTCREG, 11, CRTCVAL, 0x0f, /* cursor end */ |
---|
698 | OUT, CRTCREG, 12, CRTCVAL, 0x00, /* start high addr */ |
---|
699 | OUT, CRTCREG, 13, CRTCVAL, 0x00, /* low addr */ |
---|
700 | OUT, CRTCREG, 14, CRTCVAL, 0x00, /* cursor high */ |
---|
701 | OUT, CRTCREG, 15, CRTCVAL, 0x00, /* cursor low */ |
---|
702 | OUT, CRTCREG, 16, CRTCVAL, 0x5e, /* vert retrace */ |
---|
703 | OUT, CRTCREG, 17, CRTCVAL, 0x2b, /* retrace end */ |
---|
704 | OUT, CRTCREG, 18, CRTCVAL, 0x5d, /* vert end */ |
---|
705 | OUT, CRTCREG, 19, CRTCVAL, 0x28, /* offset */ |
---|
706 | OUT, CRTCREG, 20, CRTCVAL, 0x0f, /* underline */ |
---|
707 | OUT, CRTCREG, 21, CRTCVAL, 0x5e, /* vert blank */ |
---|
708 | OUT, CRTCREG, 22, CRTCVAL, 0x0a, /* end blank */ |
---|
709 | OUT, CRTCREG, 23, CRTCVAL, 0xa3, /* crt mode */ |
---|
710 | OUT, CRTCREG, 24, CRTCVAL, 0xff, /* line compare */ |
---|
711 | |
---|
712 | /* Graphics controller */ |
---|
713 | OUT, GENREG2, 0x00, 0, 0, |
---|
714 | OUT, GENREG3, 0x01, 0, 0, |
---|
715 | OUT, GRREG, 0, GRVAL, 0x00, |
---|
716 | OUT, GRREG, 1, GRVAL, 0x00, |
---|
717 | OUT, GRREG, 2, GRVAL, 0x00, |
---|
718 | OUT, GRREG, 3, GRVAL, 0x00, |
---|
719 | OUT, GRREG, 4, GRVAL, 0x00, |
---|
720 | OUT, GRREG, 5, GRVAL, 0x10, |
---|
721 | OUT, GRREG, 6, GRVAL, 0x0e, |
---|
722 | OUT, GRREG, 7, GRVAL, 0x00, |
---|
723 | OUT, GRREG, 8, GRVAL, 0xff, |
---|
724 | |
---|
725 | /* Reset attribute flip/flop */ |
---|
726 | IN, ATTRREG, 0, 0, 0, |
---|
727 | |
---|
728 | /* Palette */ |
---|
729 | OUT, PALREG, 0, PALREG, 0x00, |
---|
730 | OUT, PALREG, 1, PALREG, 0x01, |
---|
731 | OUT, PALREG, 2, PALREG, 0x02, |
---|
732 | OUT, PALREG, 3, PALREG, 0x03, |
---|
733 | OUT, PALREG, 4, PALREG, 0x04, |
---|
734 | OUT, PALREG, 5, PALREG, 0x05, |
---|
735 | OUT, PALREG, 6, PALREG, 0x14, |
---|
736 | OUT, PALREG, 7, PALREG, 0x07, |
---|
737 | OUT, PALREG, 8, PALREG, 0x38, |
---|
738 | OUT, PALREG, 9, PALREG, 0x39, |
---|
739 | OUT, PALREG, 10, PALREG, 0x3a, |
---|
740 | OUT, PALREG, 11, PALREG, 0x3b, |
---|
741 | OUT, PALREG, 12, PALREG, 0x3c, |
---|
742 | OUT, PALREG, 13, PALREG, 0x3d, |
---|
743 | OUT, PALREG, 14, PALREG, 0x3e, |
---|
744 | OUT, PALREG, 15, PALREG, 0x3f, |
---|
745 | OUT, PALREG, 16, PALREG, 0x08, |
---|
746 | OUT, PALREG, 17, PALREG, 0x00, |
---|
747 | OUT, PALREG, 18, PALREG, 0x0f, |
---|
748 | OUT, PALREG, 19, PALREG, 0x00, |
---|
749 | |
---|
750 | /* Enable palette */ |
---|
751 | OUT, PALREG, 0x20, 0, 0, |
---|
752 | |
---|
753 | /* End of table */ |
---|
754 | DONE, 0, 0, 0, 0 |
---|
755 | }; |
---|
756 | |
---|
757 | #endif |
---|