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Linux 4.16.11
[linux/fpc-iii.git] / drivers / video / fbdev / matrox / matroxfb_maven.c
blobbf5ce04f9aea55733bf513bc237f42c489666d26
1 /*
2 *
3 * Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200, G400 and G450.
4 *
5 * (c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>
6 *
7 * Portions Copyright (c) 2001 Matrox Graphics Inc.
8 *
9 * Version: 1.65 2002/08/14
10 *
11 * See matroxfb_base.c for contributors.
12 *
13 */
14
15 #include "matroxfb_maven.h"
16 #include "matroxfb_misc.h"
17 #include "matroxfb_DAC1064.h"
18 #include <linux/i2c.h>
19 #include <linux/matroxfb.h>
20 #include <linux/slab.h>
21 #include <asm/div64.h>
22
23 #define MGATVO_B 1
24 #define MGATVO_C 2
25
26 static const struct maven_gamma {
27 unsigned char reg83;
28 unsigned char reg84;
29 unsigned char reg85;
30 unsigned char reg86;
31 unsigned char reg87;
32 unsigned char reg88;
33 unsigned char reg89;
34 unsigned char reg8a;
35 unsigned char reg8b;
36 } maven_gamma[] = {
37 { 131, 57, 223, 15, 117, 212, 251, 91, 156},
38 { 133, 61, 128, 63, 180, 147, 195, 100, 180},
39 { 131, 19, 63, 31, 50, 66, 171, 64, 176},
40 { 0, 0, 0, 31, 16, 16, 16, 100, 200},
41 { 8, 23, 47, 73, 147, 244, 220, 80, 195},
42 { 22, 43, 64, 80, 147, 115, 58, 85, 168},
43 { 34, 60, 80, 214, 147, 212, 188, 85, 167},
44 { 45, 77, 96, 216, 147, 99, 91, 85, 159},
45 { 56, 76, 112, 107, 147, 212, 148, 64, 144},
46 { 65, 91, 128, 137, 147, 196, 17, 69, 148},
47 { 72, 104, 136, 138, 147, 180, 245, 73, 147},
48 { 87, 116, 143, 126, 16, 83, 229, 77, 144},
49 { 95, 119, 152, 254, 244, 83, 221, 77, 151},
50 { 100, 129, 159, 156, 244, 148, 197, 77, 160},
51 { 105, 141, 167, 247, 244, 132, 181, 84, 166},
52 { 105, 147, 168, 247, 244, 245, 181, 90, 170},
53 { 120, 153, 175, 248, 212, 229, 165, 90, 180},
54 { 119, 156, 176, 248, 244, 229, 84, 74, 160},
55 { 119, 158, 183, 248, 244, 229, 149, 78, 165}
56 };
57
58 /* Definition of the various controls */
59 struct mctl {
60 struct v4l2_queryctrl desc;
61 size_t control;
62 };
63
64 #define BLMIN 0x0FF
65 #define WLMAX 0x3FF
66
67 static const struct mctl maven_controls[] =
68 { { { V4L2_CID_BRIGHTNESS, V4L2_CTRL_TYPE_INTEGER,
69 "brightness",
70 0, WLMAX - BLMIN, 1, 379 - BLMIN,
71 0,
72 }, offsetof(struct matrox_fb_info, altout.tvo_params.brightness) },
73 { { V4L2_CID_CONTRAST, V4L2_CTRL_TYPE_INTEGER,
74 "contrast",
75 0, 1023, 1, 127,
76 0,
77 }, offsetof(struct matrox_fb_info, altout.tvo_params.contrast) },
78 { { V4L2_CID_SATURATION, V4L2_CTRL_TYPE_INTEGER,
79 "saturation",
80 0, 255, 1, 155,
81 0,
82 }, offsetof(struct matrox_fb_info, altout.tvo_params.saturation) },
83 { { V4L2_CID_HUE, V4L2_CTRL_TYPE_INTEGER,
84 "hue",
85 0, 255, 1, 0,
86 0,
87 }, offsetof(struct matrox_fb_info, altout.tvo_params.hue) },
88 { { V4L2_CID_GAMMA, V4L2_CTRL_TYPE_INTEGER,
89 "gamma",
90 0, ARRAY_SIZE(maven_gamma) - 1, 1, 3,
91 0,
92 }, offsetof(struct matrox_fb_info, altout.tvo_params.gamma) },
93 { { MATROXFB_CID_TESTOUT, V4L2_CTRL_TYPE_BOOLEAN,
94 "test output",
95 0, 1, 1, 0,
96 0,
97 }, offsetof(struct matrox_fb_info, altout.tvo_params.testout) },
98 { { MATROXFB_CID_DEFLICKER, V4L2_CTRL_TYPE_INTEGER,
99 "deflicker mode",
100 0, 2, 1, 0,
101 0,
102 }, offsetof(struct matrox_fb_info, altout.tvo_params.deflicker) },
103
104 };
105
106 #define MAVCTRLS ARRAY_SIZE(maven_controls)
107
108 /* Return: positive number: id found
109 -EINVAL: id not found, return failure
110 -ENOENT: id not found, create fake disabled control */
111 static int get_ctrl_id(__u32 v4l2_id) {
112 int i;
113
114 for (i = 0; i < MAVCTRLS; i++) {
115 if (v4l2_id < maven_controls[i].desc.id) {
116 if (maven_controls[i].desc.id == 0x08000000) {
117 return -EINVAL;
118 }
119 return -ENOENT;
120 }
121 if (v4l2_id == maven_controls[i].desc.id) {
122 return i;
123 }
124 }
125 return -EINVAL;
126 }
127
128 struct maven_data {
129 struct matrox_fb_info* primary_head;
130 struct i2c_client *client;
131 int version;
132 };
133
134 static int* get_ctrl_ptr(struct maven_data* md, int idx) {
135 return (int*)((char*)(md->primary_head) + maven_controls[idx].control);
136 }
137
138 static int maven_get_reg(struct i2c_client* c, char reg) {
139 char dst;
140 struct i2c_msg msgs[] = {
141 {
142 .addr = c->addr,
143 .flags = I2C_M_REV_DIR_ADDR,
144 .len = sizeof(reg),
145 .buf = &reg
146 },
147 {
148 .addr = c->addr,
149 .flags = I2C_M_RD | I2C_M_NOSTART,
150 .len = sizeof(dst),
151 .buf = &dst
152 }
153 };
154 s32 err;
155
156 err = i2c_transfer(c->adapter, msgs, 2);
157 if (err < 0)
158 printk(KERN_INFO "ReadReg(%d) failed\n", reg);
159 return dst & 0xFF;
160 }
161
162 static int maven_set_reg(struct i2c_client* c, int reg, int val) {
163 s32 err;
164
165 err = i2c_smbus_write_byte_data(c, reg, val);
166 if (err)
167 printk(KERN_INFO "WriteReg(%d) failed\n", reg);
168 return err;
169 }
170
171 static int maven_set_reg_pair(struct i2c_client* c, int reg, int val) {
172 s32 err;
173
174 err = i2c_smbus_write_word_data(c, reg, val);
175 if (err)
176 printk(KERN_INFO "WriteRegPair(%d) failed\n", reg);
177 return err;
178 }
179
180 static const struct matrox_pll_features maven_pll = {
181 50000,
182 27000,
183 4, 127,
184 2, 31,
185 3
186 };
187
188 struct matrox_pll_features2 {
189 unsigned int vco_freq_min;
190 unsigned int vco_freq_max;
191 unsigned int feed_div_min;
192 unsigned int feed_div_max;
193 unsigned int in_div_min;
194 unsigned int in_div_max;
195 unsigned int post_shift_max;
196 };
197
198 struct matrox_pll_ctl {
199 unsigned int ref_freq;
200 unsigned int den;
201 };
202
203 static const struct matrox_pll_features2 maven1000_pll = {
204 .vco_freq_min = 50000000,
205 .vco_freq_max = 300000000,
206 .feed_div_min = 5,
207 .feed_div_max = 128,
208 .in_div_min = 3,
209 .in_div_max = 32,
210 .post_shift_max = 3
211 };
212
213 static const struct matrox_pll_ctl maven_PAL = {
214 .ref_freq = 540000,
215 .den = 50
216 };
217
218 static const struct matrox_pll_ctl maven_NTSC = {
219 .ref_freq = 450450, /* 27027000/60 == 27000000/59.94005994 */
220 .den = 60
221 };
222
223 static int matroxfb_PLL_mavenclock(const struct matrox_pll_features2* pll,
224 const struct matrox_pll_ctl* ctl,
225 unsigned int htotal, unsigned int vtotal,
226 unsigned int* in, unsigned int* feed, unsigned int* post,
227 unsigned int* h2) {
228 unsigned int besth2 = 0;
229 unsigned int fxtal = ctl->ref_freq;
230 unsigned int fmin = pll->vco_freq_min / ctl->den;
231 unsigned int fwant;
232 unsigned int p;
233 unsigned int scrlen;
234 unsigned int fmax;
235
236 DBG(__func__)
237
238 scrlen = htotal * (vtotal - 1);
239 fwant = htotal * vtotal;
240 fmax = pll->vco_freq_max / ctl->den;
241
242 dprintk(KERN_DEBUG "want: %u, xtal: %u, h: %u, v: %u, fmax: %u\n",
243 fwant, fxtal, htotal, vtotal, fmax);
244 for (p = 1; p <= pll->post_shift_max; p++) {
245 if (fwant * 2 > fmax)
246 break;
247 fwant *= 2;
248 }
249 if (fwant > fmax)
250 return 0;
251 for (; p-- > 0; fwant >>= 1) {
252 unsigned int m;
253
254 if (fwant < fmin) break;
255 for (m = pll->in_div_min; m <= pll->in_div_max; m++) {
256 unsigned int n;
257 unsigned int dvd;
258 unsigned int ln;
259
260 n = (fwant * m) / fxtal;
261 if (n < pll->feed_div_min)
262 continue;
263 if (n > pll->feed_div_max)
264 break;
265
266 ln = fxtal * n;
267 dvd = m << p;
268
269 if (ln % dvd)
270 continue;
271 ln = ln / dvd;
272
273 if (ln < scrlen + 2)
274 continue;
275 ln = ln - scrlen;
276 if (ln > htotal)
277 continue;
278 dprintk(KERN_DEBUG "Match: %u / %u / %u / %u\n", n, m, p, ln);
279 if (ln > besth2) {
280 dprintk(KERN_DEBUG "Better...\n");
281 *h2 = besth2 = ln;
282 *post = p;
283 *in = m;
284 *feed = n;
285 }
286 }
287 }
288
289 /* if h2/post/in/feed have not been assigned, return zero (error) */
290 if (besth2 < 2)
291 return 0;
292
293 dprintk(KERN_ERR "clk: %02X %02X %02X %d %d\n", *in, *feed, *post, fxtal, fwant);
294 return fxtal * (*feed) / (*in) * ctl->den;
295 }
296
297 static int matroxfb_mavenclock(const struct matrox_pll_ctl *ctl,
298 unsigned int htotal, unsigned int vtotal,
299 unsigned int* in, unsigned int* feed, unsigned int* post,
300 unsigned int* htotal2) {
301 unsigned int fvco;
302 unsigned int uninitialized_var(p);
303
304 fvco = matroxfb_PLL_mavenclock(&maven1000_pll, ctl, htotal, vtotal, in, feed, &p, htotal2);
305 if (!fvco)
306 return -EINVAL;
307 p = (1 << p) - 1;
308 if (fvco <= 100000000)
309 ;
310 else if (fvco <= 140000000)
311 p |= 0x08;
312 else if (fvco <= 180000000)
313 p |= 0x10;
314 else
315 p |= 0x18;
316 *post = p;
317 return 0;
318 }
319
320 static void DAC1064_calcclock(unsigned int freq, unsigned int fmax,
321 unsigned int* in, unsigned int* feed, unsigned int* post) {
322 unsigned int fvco;
323 unsigned int p;
324
325 fvco = matroxfb_PLL_calcclock(&maven_pll, freq, fmax, in, feed, &p);
326 p = (1 << p) - 1;
327 if (fvco <= 100000)
328 ;
329 else if (fvco <= 140000)
330 p |= 0x08;
331 else if (fvco <= 180000)
332 p |= 0x10;
333 else
334 p |= 0x18;
335 *post = p;
336 return;
337 }
338
339 static unsigned char maven_compute_deflicker (const struct maven_data* md) {
340 unsigned char df;
341
342 df = (md->version == MGATVO_B?0x40:0x00);
343 switch (md->primary_head->altout.tvo_params.deflicker) {
344 case 0:
345 /* df |= 0x00; */
346 break;
347 case 1:
348 df |= 0xB1;
349 break;
350 case 2:
351 df |= 0xA2;
352 break;
353 }
354 return df;
355 }
356
357 static void maven_compute_bwlevel (const struct maven_data* md,
358 int *bl, int *wl) {
359 const int b = md->primary_head->altout.tvo_params.brightness + BLMIN;
360 const int c = md->primary_head->altout.tvo_params.contrast;
361
362 *bl = max(b - c, BLMIN);
363 *wl = min(b + c, WLMAX);
364 }
365
366 static const struct maven_gamma* maven_compute_gamma (const struct maven_data* md) {
367 return maven_gamma + md->primary_head->altout.tvo_params.gamma;
368 }
369
370
371 static void maven_init_TVdata(const struct maven_data* md, struct mavenregs* data) {
372 static struct mavenregs palregs = { {
373 0x2A, 0x09, 0x8A, 0xCB, /* 00: chroma subcarrier */
374 0x00,
375 0x00, /* ? not written */
376 0x00, /* modified by code (F9 written...) */
377 0x00, /* ? not written */
378 0x7E, /* 08 */
379 0x44, /* 09 */
380 0x9C, /* 0A */
381 0x2E, /* 0B */
382 0x21, /* 0C */
383 0x00, /* ? not written */
384 0x3F, 0x03, /* 0E-0F */
385 0x3F, 0x03, /* 10-11 */
386 0x1A, /* 12 */
387 0x2A, /* 13 */
388 0x1C, 0x3D, 0x14, /* 14-16 */
389 0x9C, 0x01, /* 17-18 */
390 0x00, /* 19 */
391 0xFE, /* 1A */
392 0x7E, /* 1B */
393 0x60, /* 1C */
394 0x05, /* 1D */
395 0x89, 0x03, /* 1E-1F */
396 0x72, /* 20 */
397 0x07, /* 21 */
398 0x72, /* 22 */
399 0x00, /* 23 */
400 0x00, /* 24 */
401 0x00, /* 25 */
402 0x08, /* 26 */
403 0x04, /* 27 */
404 0x00, /* 28 */
405 0x1A, /* 29 */
406 0x55, 0x01, /* 2A-2B */
407 0x26, /* 2C */
408 0x07, 0x7E, /* 2D-2E */
409 0x02, 0x54, /* 2F-30 */
410 0xB0, 0x00, /* 31-32 */
411 0x14, /* 33 */
412 0x49, /* 34 */
413 0x00, /* 35 written multiple times */
414 0x00, /* 36 not written */
415 0xA3, /* 37 */
416 0xC8, /* 38 */
417 0x22, /* 39 */
418 0x02, /* 3A */
419 0x22, /* 3B */
420 0x3F, 0x03, /* 3C-3D */
421 0x00, /* 3E written multiple times */
422 0x00, /* 3F not written */
423 }, MATROXFB_OUTPUT_MODE_PAL, 625, 50 };
424 static struct mavenregs ntscregs = { {
425 0x21, 0xF0, 0x7C, 0x1F, /* 00: chroma subcarrier */
426 0x00,
427 0x00, /* ? not written */
428 0x00, /* modified by code (F9 written...) */
429 0x00, /* ? not written */
430 0x7E, /* 08 */
431 0x43, /* 09 */
432 0x7E, /* 0A */
433 0x3D, /* 0B */
434 0x00, /* 0C */
435 0x00, /* ? not written */
436 0x41, 0x00, /* 0E-0F */
437 0x3C, 0x00, /* 10-11 */
438 0x17, /* 12 */
439 0x21, /* 13 */
440 0x1B, 0x1B, 0x24, /* 14-16 */
441 0x83, 0x01, /* 17-18 */
442 0x00, /* 19 */
443 0x0F, /* 1A */
444 0x0F, /* 1B */
445 0x60, /* 1C */
446 0x05, /* 1D */
447 0x89, 0x02, /* 1E-1F */
448 0x5F, /* 20 */
449 0x04, /* 21 */
450 0x5F, /* 22 */
451 0x01, /* 23 */
452 0x02, /* 24 */
453 0x00, /* 25 */
454 0x0A, /* 26 */
455 0x05, /* 27 */
456 0x00, /* 28 */
457 0x10, /* 29 */
458 0xFF, 0x03, /* 2A-2B */
459 0x24, /* 2C */
460 0x0F, 0x78, /* 2D-2E */
461 0x00, 0x00, /* 2F-30 */
462 0xB2, 0x04, /* 31-32 */
463 0x14, /* 33 */
464 0x02, /* 34 */
465 0x00, /* 35 written multiple times */
466 0x00, /* 36 not written */
467 0xA3, /* 37 */
468 0xC8, /* 38 */
469 0x15, /* 39 */
470 0x05, /* 3A */
471 0x3B, /* 3B */
472 0x3C, 0x00, /* 3C-3D */
473 0x00, /* 3E written multiple times */
474 0x00, /* never written */
475 }, MATROXFB_OUTPUT_MODE_NTSC, 525, 60 };
476 struct matrox_fb_info *minfo = md->primary_head;
477
478 if (minfo->outputs[1].mode == MATROXFB_OUTPUT_MODE_PAL)
479 *data = palregs;
480 else
481 *data = ntscregs;
482
483 /* Set deflicker */
484 data->regs[0x93] = maven_compute_deflicker(md);
485
486 /* set gamma */
487 {
488 const struct maven_gamma* g;
489 g = maven_compute_gamma(md);
490 data->regs[0x83] = g->reg83;
491 data->regs[0x84] = g->reg84;
492 data->regs[0x85] = g->reg85;
493 data->regs[0x86] = g->reg86;
494 data->regs[0x87] = g->reg87;
495 data->regs[0x88] = g->reg88;
496 data->regs[0x89] = g->reg89;
497 data->regs[0x8A] = g->reg8a;
498 data->regs[0x8B] = g->reg8b;
499 }
500
501 /* Set contrast / brightness */
502 {
503 int bl, wl;
504 maven_compute_bwlevel (md, &bl, &wl);
505 data->regs[0x0e] = bl >> 2;
506 data->regs[0x0f] = bl & 3;
507 data->regs[0x1e] = wl >> 2;
508 data->regs[0x1f] = wl & 3;
509 }
510
511 /* Set saturation */
512 {
513 data->regs[0x20] =
514 data->regs[0x22] = minfo->altout.tvo_params.saturation;
515 }
516
517 /* Set HUE */
518 data->regs[0x25] = minfo->altout.tvo_params.hue;
519 return;
520 }
521
522 #define LR(x) maven_set_reg(c, (x), m->regs[(x)])
523 #define LRP(x) maven_set_reg_pair(c, (x), m->regs[(x)] | (m->regs[(x)+1] << 8))
524 static void maven_init_TV(struct i2c_client* c, const struct mavenregs* m) {
525 int val;
526
527
528 maven_set_reg(c, 0x3E, 0x01);
529 maven_get_reg(c, 0x82); /* fetch oscillator state? */
530 maven_set_reg(c, 0x8C, 0x00);
531 maven_get_reg(c, 0x94); /* get 0x82 */
532 maven_set_reg(c, 0x94, 0xA2);
533 /* xmiscctrl */
534
535 maven_set_reg_pair(c, 0x8E, 0x1EFF);
536 maven_set_reg(c, 0xC6, 0x01);
537
538 /* removed code... */
539
540 maven_get_reg(c, 0x06);
541 maven_set_reg(c, 0x06, 0xF9); /* or read |= 0xF0 ? */
542
543 /* removed code here... */
544
545 /* real code begins here? */
546 /* chroma subcarrier */
547 LR(0x00); LR(0x01); LR(0x02); LR(0x03);
548
549 LR(0x04);
550
551 LR(0x2C);
552 LR(0x08);
553 LR(0x0A);
554 LR(0x09);
555 LR(0x29);
556 LRP(0x31);
557 LRP(0x17);
558 LR(0x0B);
559 LR(0x0C);
560 if (m->mode == MATROXFB_OUTPUT_MODE_PAL) {
561 maven_set_reg(c, 0x35, 0x10); /* ... */
562 } else {
563 maven_set_reg(c, 0x35, 0x0F); /* ... */
564 }
565
566 LRP(0x10);
567
568 LRP(0x0E);
569 LRP(0x1E);
570
571 LR(0x20); /* saturation #1 */
572 LR(0x22); /* saturation #2 */
573 LR(0x25); /* hue */
574 LR(0x34);
575 LR(0x33);
576 LR(0x19);
577 LR(0x12);
578 LR(0x3B);
579 LR(0x13);
580 LR(0x39);
581 LR(0x1D);
582 LR(0x3A);
583 LR(0x24);
584 LR(0x14);
585 LR(0x15);
586 LR(0x16);
587 LRP(0x2D);
588 LRP(0x2F);
589 LR(0x1A);
590 LR(0x1B);
591 LR(0x1C);
592 LR(0x23);
593 LR(0x26);
594 LR(0x28);
595 LR(0x27);
596 LR(0x21);
597 LRP(0x2A);
598 if (m->mode == MATROXFB_OUTPUT_MODE_PAL)
599 maven_set_reg(c, 0x35, 0x1D); /* ... */
600 else
601 maven_set_reg(c, 0x35, 0x1C);
602
603 LRP(0x3C);
604 LR(0x37);
605 LR(0x38);
606 maven_set_reg(c, 0xB3, 0x01);
607
608 maven_get_reg(c, 0xB0); /* read 0x80 */
609 maven_set_reg(c, 0xB0, 0x08); /* ugh... */
610 maven_get_reg(c, 0xB9); /* read 0x7C */
611 maven_set_reg(c, 0xB9, 0x78);
612 maven_get_reg(c, 0xBF); /* read 0x00 */
613 maven_set_reg(c, 0xBF, 0x02);
614 maven_get_reg(c, 0x94); /* read 0x82 */
615 maven_set_reg(c, 0x94, 0xB3);
616
617 LR(0x80); /* 04 1A 91 or 05 21 91 */
618 LR(0x81);
619 LR(0x82);
620
621 maven_set_reg(c, 0x8C, 0x20);
622 maven_get_reg(c, 0x8D);
623 maven_set_reg(c, 0x8D, 0x10);
624
625 LR(0x90); /* 4D 50 52 or 4E 05 45 */
626 LR(0x91);
627 LR(0x92);
628
629 LRP(0x9A); /* 0049 or 004F */
630 LRP(0x9C); /* 0004 or 0004 */
631 LRP(0x9E); /* 0458 or 045E */
632 LRP(0xA0); /* 05DA or 051B */
633 LRP(0xA2); /* 00CC or 00CF */
634 LRP(0xA4); /* 007D or 007F */
635 LRP(0xA6); /* 007C or 007E */
636 LRP(0xA8); /* 03CB or 03CE */
637 LRP(0x98); /* 0000 or 0000 */
638 LRP(0xAE); /* 0044 or 003A */
639 LRP(0x96); /* 05DA or 051B */
640 LRP(0xAA); /* 04BC or 046A */
641 LRP(0xAC); /* 004D or 004E */
642
643 LR(0xBE);
644 LR(0xC2);
645
646 maven_get_reg(c, 0x8D);
647 maven_set_reg(c, 0x8D, 0x04);
648
649 LR(0x20); /* saturation #1 */
650 LR(0x22); /* saturation #2 */
651 LR(0x93); /* whoops */
652 LR(0x20); /* oh, saturation #1 again */
653 LR(0x22); /* oh, saturation #2 again */
654 LR(0x25); /* hue */
655 LRP(0x0E);
656 LRP(0x1E);
657 LRP(0x0E); /* problems with memory? */
658 LRP(0x1E); /* yes, matrox must have problems in memory area... */
659
660 /* load gamma correction stuff */
661 LR(0x83);
662 LR(0x84);
663 LR(0x85);
664 LR(0x86);
665 LR(0x87);
666 LR(0x88);
667 LR(0x89);
668 LR(0x8A);
669 LR(0x8B);
670
671 val = maven_get_reg(c, 0x8D);
672 val &= 0x14; /* 0x10 or anything ored with it */
673 maven_set_reg(c, 0x8D, val);
674
675 LR(0x33);
676 LR(0x19);
677 LR(0x12);
678 LR(0x3B);
679 LR(0x13);
680 LR(0x39);
681 LR(0x1D);
682 LR(0x3A);
683 LR(0x24);
684 LR(0x14);
685 LR(0x15);
686 LR(0x16);
687 LRP(0x2D);
688 LRP(0x2F);
689 LR(0x1A);
690 LR(0x1B);
691 LR(0x1C);
692 LR(0x23);
693 LR(0x26);
694 LR(0x28);
695 LR(0x27);
696 LR(0x21);
697 LRP(0x2A);
698 if (m->mode == MATROXFB_OUTPUT_MODE_PAL)
699 maven_set_reg(c, 0x35, 0x1D);
700 else
701 maven_set_reg(c, 0x35, 0x1C);
702 LRP(0x3C);
703 LR(0x37);
704 LR(0x38);
705
706 maven_get_reg(c, 0xB0);
707 LR(0xB0); /* output mode */
708 LR(0x90);
709 LR(0xBE);
710 LR(0xC2);
711
712 LRP(0x9A);
713 LRP(0xA2);
714 LRP(0x9E);
715 LRP(0xA6);
716 LRP(0xAA);
717 LRP(0xAC);
718 maven_set_reg(c, 0x3E, 0x00);
719 maven_set_reg(c, 0x95, 0x20);
720 }
721
722 static int maven_find_exact_clocks(unsigned int ht, unsigned int vt,
723 struct mavenregs* m) {
724 unsigned int x;
725 unsigned int err = ~0;
726
727 /* 1:1 */
728 m->regs[0x80] = 0x0F;
729 m->regs[0x81] = 0x07;
730 m->regs[0x82] = 0x81;
731
732 for (x = 0; x < 8; x++) {
733 unsigned int c;
734 unsigned int uninitialized_var(a), uninitialized_var(b),
735 uninitialized_var(h2);
736 unsigned int h = ht + 2 + x;
737
738 if (!matroxfb_mavenclock((m->mode == MATROXFB_OUTPUT_MODE_PAL) ? &maven_PAL : &maven_NTSC, h, vt, &a, &b, &c, &h2)) {
739 unsigned int diff = h - h2;
740
741 if (diff < err) {
742 err = diff;
743 m->regs[0x80] = a - 1;
744 m->regs[0x81] = b - 1;
745 m->regs[0x82] = c | 0x80;
746 m->hcorr = h2 - 2;
747 m->htotal = h - 2;
748 }
749 }
750 }
751 return err != ~0U;
752 }
753
754 static inline int maven_compute_timming(struct maven_data* md,
755 struct my_timming* mt,
756 struct mavenregs* m) {
757 unsigned int tmpi;
758 unsigned int a, bv, c;
759 struct matrox_fb_info *minfo = md->primary_head;
760
761 m->mode = minfo->outputs[1].mode;
762 if (m->mode != MATROXFB_OUTPUT_MODE_MONITOR) {
763 unsigned int lmargin;
764 unsigned int umargin;
765 unsigned int vslen;
766 unsigned int hcrt;
767 unsigned int slen;
768
769 maven_init_TVdata(md, m);
770
771 if (maven_find_exact_clocks(mt->HTotal, mt->VTotal, m) == 0)
772 return -EINVAL;
773
774 lmargin = mt->HTotal - mt->HSyncEnd;
775 slen = mt->HSyncEnd - mt->HSyncStart;
776 hcrt = mt->HTotal - slen - mt->delay;
777 umargin = mt->VTotal - mt->VSyncEnd;
778 vslen = mt->VSyncEnd - mt->VSyncStart;
779
780 if (m->hcorr < mt->HTotal)
781 hcrt += m->hcorr;
782 if (hcrt > mt->HTotal)
783 hcrt -= mt->HTotal;
784 if (hcrt + 2 > mt->HTotal)
785 hcrt = 0; /* or issue warning? */
786
787 /* last (first? middle?) line in picture can have different length */
788 /* hlen - 2 */
789 m->regs[0x96] = m->hcorr;
790 m->regs[0x97] = m->hcorr >> 8;
791 /* ... */
792 m->regs[0x98] = 0x00; m->regs[0x99] = 0x00;
793 /* hblanking end */
794 m->regs[0x9A] = lmargin; /* 100% */
795 m->regs[0x9B] = lmargin >> 8; /* 100% */
796 /* who knows */
797 m->regs[0x9C] = 0x04;
798 m->regs[0x9D] = 0x00;
799 /* htotal - 2 */
800 m->regs[0xA0] = m->htotal;
801 m->regs[0xA1] = m->htotal >> 8;
802 /* vblanking end */
803 m->regs[0xA2] = mt->VTotal - mt->VSyncStart - 1; /* stop vblanking */
804 m->regs[0xA3] = (mt->VTotal - mt->VSyncStart - 1) >> 8;
805 /* something end... [A6]+1..[A8] */
806 if (md->version == MGATVO_B) {
807 m->regs[0xA4] = 0x04;
808 m->regs[0xA5] = 0x00;
809 } else {
810 m->regs[0xA4] = 0x01;
811 m->regs[0xA5] = 0x00;
812 }
813 /* something start... 0..[A4]-1 */
814 m->regs[0xA6] = 0x00;
815 m->regs[0xA7] = 0x00;
816 /* vertical line count - 1 */
817 m->regs[0xA8] = mt->VTotal - 1;
818 m->regs[0xA9] = (mt->VTotal - 1) >> 8;
819 /* horizontal vidrst pos */
820 m->regs[0xAA] = hcrt; /* 0 <= hcrt <= htotal - 2 */
821 m->regs[0xAB] = hcrt >> 8;
822 /* vertical vidrst pos */
823 m->regs[0xAC] = mt->VTotal - 2;
824 m->regs[0xAD] = (mt->VTotal - 2) >> 8;
825 /* moves picture up/down and so on... */
826 m->regs[0xAE] = 0x01; /* Fix this... 0..VTotal */
827 m->regs[0xAF] = 0x00;
828 {
829 int hdec;
830 int hlen;
831 unsigned int ibmin = 4 + lmargin + mt->HDisplay;
832 unsigned int ib;
833 int i;
834
835 /* Verify! */
836 /* Where 94208 came from? */
837 if (mt->HTotal)
838 hdec = 94208 / (mt->HTotal);
839 else
840 hdec = 0x81;
841 if (hdec > 0x81)
842 hdec = 0x81;
843 if (hdec < 0x41)
844 hdec = 0x41;
845 hdec--;
846 hlen = 98304 - 128 - ((lmargin + mt->HDisplay - 8) * hdec);
847 if (hlen < 0)
848 hlen = 0;
849 hlen = hlen >> 8;
850 if (hlen > 0xFF)
851 hlen = 0xFF;
852 /* Now we have to compute input buffer length.
853 If you want any picture, it must be between
854 4 + lmargin + xres
855 and
856 94208 / hdec
857 If you want perfect picture even on the top
858 of screen, it must be also
859 0x3C0000 * i / hdec + Q - R / hdec
860 where
861 R Qmin Qmax
862 0x07000 0x5AE 0x5BF
863 0x08000 0x5CF 0x5FF
864 0x0C000 0x653 0x67F
865 0x10000 0x6F8 0x6FF
866 */
867 i = 1;
868 do {
869 ib = ((0x3C0000 * i - 0x8000)/ hdec + 0x05E7) >> 8;
870 i++;
871 } while (ib < ibmin);
872 if (ib >= m->htotal + 2) {
873 ib = ibmin;
874 }
875
876 m->regs[0x90] = hdec; /* < 0x40 || > 0x80 is bad... 0x80 is questionable */
877 m->regs[0xC2] = hlen;
878 /* 'valid' input line length */
879 m->regs[0x9E] = ib;
880 m->regs[0x9F] = ib >> 8;
881 }
882 {
883 int vdec;
884 int vlen;
885
886 #define MATROX_USE64BIT_DIVIDE
887 if (mt->VTotal) {
888 #ifdef MATROX_USE64BIT_DIVIDE
889 u64 f1;
890 u32 a;
891 u32 b;
892
893 a = m->vlines * (m->htotal + 2);
894 b = (mt->VTotal - 1) * (m->htotal + 2) + m->hcorr + 2;
895
896 f1 = ((u64)a) << 15; /* *32768 */
897 do_div(f1, b);
898 vdec = f1;
899 #else
900 vdec = m->vlines * 32768 / mt->VTotal;
901 #endif
902 } else
903 vdec = 0x8000;
904 if (vdec > 0x8000)
905 vdec = 0x8000;
906 vlen = (vslen + umargin + mt->VDisplay) * vdec;
907 vlen = (vlen >> 16) - 146; /* FIXME: 146?! */
908 if (vlen < 0)
909 vlen = 0;
910 if (vlen > 0xFF)
911 vlen = 0xFF;
912 vdec--;
913 m->regs[0x91] = vdec;
914 m->regs[0x92] = vdec >> 8;
915 m->regs[0xBE] = vlen;
916 }
917 m->regs[0xB0] = 0x08; /* output: SVideo/Composite */
918 return 0;
919 }
920
921 DAC1064_calcclock(mt->pixclock, 450000, &a, &bv, &c);
922 m->regs[0x80] = a;
923 m->regs[0x81] = bv;
924 m->regs[0x82] = c | 0x80;
925
926 m->regs[0xB3] = 0x01;
927 m->regs[0x94] = 0xB2;
928
929 /* htotal... */
930 m->regs[0x96] = mt->HTotal;
931 m->regs[0x97] = mt->HTotal >> 8;
932 /* ?? */
933 m->regs[0x98] = 0x00;
934 m->regs[0x99] = 0x00;
935 /* hsync len */
936 tmpi = mt->HSyncEnd - mt->HSyncStart;
937 m->regs[0x9A] = tmpi;
938 m->regs[0x9B] = tmpi >> 8;
939 /* hblank end */
940 tmpi = mt->HTotal - mt->HSyncStart;
941 m->regs[0x9C] = tmpi;
942 m->regs[0x9D] = tmpi >> 8;
943 /* hblank start */
944 tmpi += mt->HDisplay;
945 m->regs[0x9E] = tmpi;
946 m->regs[0x9F] = tmpi >> 8;
947 /* htotal + 1 */
948 tmpi = mt->HTotal + 1;
949 m->regs[0xA0] = tmpi;
950 m->regs[0xA1] = tmpi >> 8;
951 /* vsync?! */
952 tmpi = mt->VSyncEnd - mt->VSyncStart - 1;
953 m->regs[0xA2] = tmpi;
954 m->regs[0xA3] = tmpi >> 8;
955 /* ignored? */
956 tmpi = mt->VTotal - mt->VSyncStart;
957 m->regs[0xA4] = tmpi;
958 m->regs[0xA5] = tmpi >> 8;
959 /* ignored? */
960 tmpi = mt->VTotal - 1;
961 m->regs[0xA6] = tmpi;
962 m->regs[0xA7] = tmpi >> 8;
963 /* vtotal - 1 */
964 m->regs[0xA8] = tmpi;
965 m->regs[0xA9] = tmpi >> 8;
966 /* hor vidrst */
967 tmpi = mt->HTotal - mt->delay;
968 m->regs[0xAA] = tmpi;
969 m->regs[0xAB] = tmpi >> 8;
970 /* vert vidrst */
971 tmpi = mt->VTotal - 2;
972 m->regs[0xAC] = tmpi;
973 m->regs[0xAD] = tmpi >> 8;
974 /* ignored? */
975 m->regs[0xAE] = 0x00;
976 m->regs[0xAF] = 0x00;
977
978 m->regs[0xB0] = 0x03; /* output: monitor */
979 m->regs[0xB1] = 0xA0; /* ??? */
980 m->regs[0x8C] = 0x20; /* must be set... */
981 m->regs[0x8D] = 0x04; /* defaults to 0x10: test signal */
982 m->regs[0xB9] = 0x1A; /* defaults to 0x2C: too bright */
983 m->regs[0xBF] = 0x22; /* makes picture stable */
984
985 return 0;
986 }
987
988 static int maven_program_timming(struct maven_data* md,
989 const struct mavenregs* m) {
990 struct i2c_client *c = md->client;
991
992 if (m->mode == MATROXFB_OUTPUT_MODE_MONITOR) {
993 LR(0x80);
994 LR(0x81);
995 LR(0x82);
996
997 LR(0xB3);
998 LR(0x94);
999
1000 LRP(0x96);
1001 LRP(0x98);
1002 LRP(0x9A);
1003 LRP(0x9C);
1004 LRP(0x9E);
1005 LRP(0xA0);
1006 LRP(0xA2);
1007 LRP(0xA4);
1008 LRP(0xA6);
1009 LRP(0xA8);
1010 LRP(0xAA);
1011 LRP(0xAC);
1012 LRP(0xAE);
1013
1014 LR(0xB0); /* output: monitor */
1015 LR(0xB1); /* ??? */
1016 LR(0x8C); /* must be set... */
1017 LR(0x8D); /* defaults to 0x10: test signal */
1018 LR(0xB9); /* defaults to 0x2C: too bright */
1019 LR(0xBF); /* makes picture stable */
1020 } else {
1021 maven_init_TV(c, m);
1022 }
1023 return 0;
1024 }
1025
1026 static inline int maven_resync(struct maven_data* md) {
1027 struct i2c_client *c = md->client;
1028 maven_set_reg(c, 0x95, 0x20); /* start whole thing */
1029 return 0;
1030 }
1031
1032 static int maven_get_queryctrl (struct maven_data* md,
1033 struct v4l2_queryctrl *p) {
1034 int i;
1035
1036 i = get_ctrl_id(p->id);
1037 if (i >= 0) {
1038 *p = maven_controls[i].desc;
1039 return 0;
1040 }
1041 if (i == -ENOENT) {
1042 static const struct v4l2_queryctrl disctrl =
1043 { .flags = V4L2_CTRL_FLAG_DISABLED };
1044
1045 i = p->id;
1046 *p = disctrl;
1047 p->id = i;
1048 sprintf(p->name, "Ctrl #%08X", i);
1049 return 0;
1050 }
1051 return -EINVAL;
1052 }
1053
1054 static int maven_set_control (struct maven_data* md,
1055 struct v4l2_control *p) {
1056 int i;
1057
1058 i = get_ctrl_id(p->id);
1059 if (i < 0) return -EINVAL;
1060
1061 /*
1062 * Check if changed.
1063 */
1064 if (p->value == *get_ctrl_ptr(md, i)) return 0;
1065
1066 /*
1067 * Check limits.
1068 */
1069 if (p->value > maven_controls[i].desc.maximum) return -EINVAL;
1070 if (p->value < maven_controls[i].desc.minimum) return -EINVAL;
1071
1072 /*
1073 * Store new value.
1074 */
1075 *get_ctrl_ptr(md, i) = p->value;
1076
1077 switch (p->id) {
1078 case V4L2_CID_BRIGHTNESS:
1079 case V4L2_CID_CONTRAST:
1080 {
1081 int blacklevel, whitelevel;
1082 maven_compute_bwlevel(md, &blacklevel, &whitelevel);
1083 blacklevel = (blacklevel >> 2) | ((blacklevel & 3) << 8);
1084 whitelevel = (whitelevel >> 2) | ((whitelevel & 3) << 8);
1085 maven_set_reg_pair(md->client, 0x0e, blacklevel);
1086 maven_set_reg_pair(md->client, 0x1e, whitelevel);
1087 }
1088 break;
1089 case V4L2_CID_SATURATION:
1090 {
1091 maven_set_reg(md->client, 0x20, p->value);
1092 maven_set_reg(md->client, 0x22, p->value);
1093 }
1094 break;
1095 case V4L2_CID_HUE:
1096 {
1097 maven_set_reg(md->client, 0x25, p->value);
1098 }
1099 break;
1100 case V4L2_CID_GAMMA:
1101 {
1102 const struct maven_gamma* g;
1103 g = maven_compute_gamma(md);
1104 maven_set_reg(md->client, 0x83, g->reg83);
1105 maven_set_reg(md->client, 0x84, g->reg84);
1106 maven_set_reg(md->client, 0x85, g->reg85);
1107 maven_set_reg(md->client, 0x86, g->reg86);
1108 maven_set_reg(md->client, 0x87, g->reg87);
1109 maven_set_reg(md->client, 0x88, g->reg88);
1110 maven_set_reg(md->client, 0x89, g->reg89);
1111 maven_set_reg(md->client, 0x8a, g->reg8a);
1112 maven_set_reg(md->client, 0x8b, g->reg8b);
1113 }
1114 break;
1115 case MATROXFB_CID_TESTOUT:
1116 {
1117 unsigned char val
1118 = maven_get_reg(md->client, 0x8d);
1119 if (p->value) val |= 0x10;
1120 else val &= ~0x10;
1121 maven_set_reg(md->client, 0x8d, val);
1122 }
1123 break;
1124 case MATROXFB_CID_DEFLICKER:
1125 {
1126 maven_set_reg(md->client, 0x93, maven_compute_deflicker(md));
1127 }
1128 break;
1129 }
1130
1131
1132 return 0;
1133 }
1134
1135 static int maven_get_control (struct maven_data* md,
1136 struct v4l2_control *p) {
1137 int i;
1138
1139 i = get_ctrl_id(p->id);
1140 if (i < 0) return -EINVAL;
1141 p->value = *get_ctrl_ptr(md, i);
1142 return 0;
1143 }
1144
1145 /******************************************************/
1146
1147 static int maven_out_compute(void* md, struct my_timming* mt) {
1148 #define mdinfo ((struct maven_data*)md)
1149 #define minfo (mdinfo->primary_head)
1150 return maven_compute_timming(md, mt, &minfo->hw.maven);
1151 #undef minfo
1152 #undef mdinfo
1153 }
1154
1155 static int maven_out_program(void* md) {
1156 #define mdinfo ((struct maven_data*)md)
1157 #define minfo (mdinfo->primary_head)
1158 return maven_program_timming(md, &minfo->hw.maven);
1159 #undef minfo
1160 #undef mdinfo
1161 }
1162
1163 static int maven_out_start(void* md) {
1164 return maven_resync(md);
1165 }
1166
1167 static int maven_out_verify_mode(void* md, u_int32_t arg) {
1168 switch (arg) {
1169 case MATROXFB_OUTPUT_MODE_PAL:
1170 case MATROXFB_OUTPUT_MODE_NTSC:
1171 case MATROXFB_OUTPUT_MODE_MONITOR:
1172 return 0;
1173 }
1174 return -EINVAL;
1175 }
1176
1177 static int maven_out_get_queryctrl(void* md, struct v4l2_queryctrl* p) {
1178 return maven_get_queryctrl(md, p);
1179 }
1180
1181 static int maven_out_get_ctrl(void* md, struct v4l2_control* p) {
1182 return maven_get_control(md, p);
1183 }
1184
1185 static int maven_out_set_ctrl(void* md, struct v4l2_control* p) {
1186 return maven_set_control(md, p);
1187 }
1188
1189 static struct matrox_altout maven_altout = {
1190 .name = "Secondary output",
1191 .compute = maven_out_compute,
1192 .program = maven_out_program,
1193 .start = maven_out_start,
1194 .verifymode = maven_out_verify_mode,
1195 .getqueryctrl = maven_out_get_queryctrl,
1196 .getctrl = maven_out_get_ctrl,
1197 .setctrl = maven_out_set_ctrl,
1198 };
1199
1200 static int maven_init_client(struct i2c_client* clnt) {
1201 struct maven_data* md = i2c_get_clientdata(clnt);
1202 struct matrox_fb_info *minfo = container_of(clnt->adapter,
1203 struct i2c_bit_adapter,
1204 adapter)->minfo;
1205
1206 md->primary_head = minfo;
1207 md->client = clnt;
1208 down_write(&minfo->altout.lock);
1209 minfo->outputs[1].output = &maven_altout;
1210 minfo->outputs[1].src = minfo->outputs[1].default_src;
1211 minfo->outputs[1].data = md;
1212 minfo->outputs[1].mode = MATROXFB_OUTPUT_MODE_MONITOR;
1213 up_write(&minfo->altout.lock);
1214 if (maven_get_reg(clnt, 0xB2) < 0x14) {
1215 md->version = MGATVO_B;
1216 /* Tweak some things for this old chip */
1217 } else {
1218 md->version = MGATVO_C;
1219 }
1220 /*
1221 * Set all parameters to its initial values.
1222 */
1223 {
1224 unsigned int i;
1225
1226 for (i = 0; i < MAVCTRLS; ++i) {
1227 *get_ctrl_ptr(md, i) = maven_controls[i].desc.default_value;
1228 }
1229 }
1230
1231 return 0;
1232 }
1233
1234 static int maven_shutdown_client(struct i2c_client* clnt) {
1235 struct maven_data* md = i2c_get_clientdata(clnt);
1236
1237 if (md->primary_head) {
1238 struct matrox_fb_info *minfo = md->primary_head;
1239
1240 down_write(&minfo->altout.lock);
1241 minfo->outputs[1].src = MATROXFB_SRC_NONE;
1242 minfo->outputs[1].output = NULL;
1243 minfo->outputs[1].data = NULL;
1244 minfo->outputs[1].mode = MATROXFB_OUTPUT_MODE_MONITOR;
1245 up_write(&minfo->altout.lock);
1246 md->primary_head = NULL;
1247 }
1248 return 0;
1249 }
1250
1251 static int maven_probe(struct i2c_client *client,
1252 const struct i2c_device_id *id)
1253 {
1254 struct i2c_adapter *adapter = client->adapter;
1255 int err = -ENODEV;
1256 struct maven_data* data;
1257
1258 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WRITE_WORD_DATA |
1259 I2C_FUNC_SMBUS_BYTE_DATA |
1260 I2C_FUNC_NOSTART |
1261 I2C_FUNC_PROTOCOL_MANGLING))
1262 goto ERROR0;
1263 if (!(data = kzalloc(sizeof(*data), GFP_KERNEL))) {
1264 err = -ENOMEM;
1265 goto ERROR0;
1266 }
1267 i2c_set_clientdata(client, data);
1268 err = maven_init_client(client);
1269 if (err)
1270 goto ERROR4;
1271 return 0;
1272 ERROR4:;
1273 kfree(data);
1274 ERROR0:;
1275 return err;
1276 }
1277
1278 static int maven_remove(struct i2c_client *client)
1279 {
1280 maven_shutdown_client(client);
1281 kfree(i2c_get_clientdata(client));
1282 return 0;
1283 }
1284
1285 static const struct i2c_device_id maven_id[] = {
1286 { "maven", 0 },
1287 { }
1288 };
1289 MODULE_DEVICE_TABLE(i2c, maven_id);
1290
1291 static struct i2c_driver maven_driver={
1292 .driver = {
1293 .name = "maven",
1294 },
1295 .probe = maven_probe,
1296 .remove = maven_remove,
1297 .id_table = maven_id,
1298 };
1299
1300 module_i2c_driver(maven_driver);
1301 MODULE_AUTHOR("(c) 1999-2002 Petr Vandrovec <vandrove@vc.cvut.cz>");
1302 MODULE_DESCRIPTION("Matrox G200/G400 Matrox MGA-TVO driver");
1303 MODULE_LICENSE("GPL");
Linux with added FPC-III support