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[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / video / pms.c
1 /*
2 * Media Vision Pro Movie Studio
3 * or
4 * "all you need is an I2C bus some RAM and a prayer"
5 *
6 * This draws heavily on code
7 *
8 * (c) Wolfgang Koehler, wolf@first.gmd.de, Dec. 1994
9 * Kiefernring 15
10 * 14478 Potsdam, Germany
11 *
12 * Most of this code is directly derived from his userspace driver.
13 * His driver works so send any reports to alan@lxorguk.ukuu.org.uk
14 * unless the userspace driver also doesn't work for you...
15 *
16 * Changes:
17 * 25-11-2009 Hans Verkuil <hverkuil@xs4all.nl>
18 * - converted to version 2 of the V4L API.
19 * 08/07/2003 Daniele Bellucci <bellucda@tiscali.it>
20 * - pms_capture: report back -EFAULT
21 */
22
23 #include <linux/module.h>
24 #include <linux/delay.h>
25 #include <linux/errno.h>
26 #include <linux/fs.h>
27 #include <linux/kernel.h>
28 #include <linux/slab.h>
29 #include <linux/mm.h>
30 #include <linux/ioport.h>
31 #include <linux/init.h>
32 #include <linux/version.h>
33 #include <linux/mutex.h>
34 #include <asm/uaccess.h>
35 #include <asm/io.h>
36
37 #include <linux/videodev2.h>
38 #include <media/v4l2-common.h>
39 #include <media/v4l2-ioctl.h>
40 #include <media/v4l2-device.h>
41
42 MODULE_LICENSE("GPL");
43
44
45 #define MOTOROLA 1
46 #define PHILIPS2 2 /* SAA7191 */
47 #define PHILIPS1 3
48 #define MVVMEMORYWIDTH 0x40 /* 512 bytes */
49
50 struct i2c_info {
51 u8 slave;
52 u8 sub;
53 u8 data;
54 u8 hits;
55 };
56
57 struct pms {
58 struct v4l2_device v4l2_dev;
59 struct video_device vdev;
60 int height;
61 int width;
62 int depth;
63 int input;
64 s32 brightness, saturation, hue, contrast;
65 unsigned long in_use;
66 struct mutex lock;
67 int i2c_count;
68 struct i2c_info i2cinfo[64];
69
70 int decoder;
71 int standard; /* 0 - auto 1 - ntsc 2 - pal 3 - secam */
72 v4l2_std_id std;
73 int io;
74 int data;
75 void __iomem *mem;
76 };
77
78 static struct pms pms_card;
79
80 /*
81 * I/O ports and Shared Memory
82 */
83
84 static int io_port = 0x250;
85 module_param(io_port, int, 0);
86
87 static int mem_base = 0xc8000;
88 module_param(mem_base, int, 0);
89
90 static int video_nr = -1;
91 module_param(video_nr, int, 0);
92
93
94 static inline void mvv_write(struct pms *dev, u8 index, u8 value)
95 {
96 outw(index | (value << 8), dev->io);
97 }
98
99 static inline u8 mvv_read(struct pms *dev, u8 index)
100 {
101 outb(index, dev->io);
102 return inb(dev->data);
103 }
104
105 static int pms_i2c_stat(struct pms *dev, u8 slave)
106 {
107 int counter = 0;
108 int i;
109
110 outb(0x28, dev->io);
111
112 while ((inb(dev->data) & 0x01) == 0)
113 if (counter++ == 256)
114 break;
115
116 while ((inb(dev->data) & 0x01) != 0)
117 if (counter++ == 256)
118 break;
119
120 outb(slave, dev->io);
121
122 counter = 0;
123 while ((inb(dev->data) & 0x01) == 0)
124 if (counter++ == 256)
125 break;
126
127 while ((inb(dev->data) & 0x01) != 0)
128 if (counter++ == 256)
129 break;
130
131 for (i = 0; i < 12; i++) {
132 char st = inb(dev->data);
133
134 if ((st & 2) != 0)
135 return -1;
136 if ((st & 1) == 0)
137 break;
138 }
139 outb(0x29, dev->io);
140 return inb(dev->data);
141 }
142
143 static int pms_i2c_write(struct pms *dev, u16 slave, u16 sub, u16 data)
144 {
145 int skip = 0;
146 int count;
147 int i;
148
149 for (i = 0; i < dev->i2c_count; i++) {
150 if ((dev->i2cinfo[i].slave == slave) &&
151 (dev->i2cinfo[i].sub == sub)) {
152 if (dev->i2cinfo[i].data == data)
153 skip = 1;
154 dev->i2cinfo[i].data = data;
155 i = dev->i2c_count + 1;
156 }
157 }
158
159 if (i == dev->i2c_count && dev->i2c_count < 64) {
160 dev->i2cinfo[dev->i2c_count].slave = slave;
161 dev->i2cinfo[dev->i2c_count].sub = sub;
162 dev->i2cinfo[dev->i2c_count].data = data;
163 dev->i2c_count++;
164 }
165
166 if (skip)
167 return 0;
168
169 mvv_write(dev, 0x29, sub);
170 mvv_write(dev, 0x2A, data);
171 mvv_write(dev, 0x28, slave);
172
173 outb(0x28, dev->io);
174
175 count = 0;
176 while ((inb(dev->data) & 1) == 0)
177 if (count > 255)
178 break;
179 while ((inb(dev->data) & 1) != 0)
180 if (count > 255)
181 break;
182
183 count = inb(dev->data);
184
185 if (count & 2)
186 return -1;
187 return count;
188 }
189
190 static int pms_i2c_read(struct pms *dev, int slave, int sub)
191 {
192 int i;
193
194 for (i = 0; i < dev->i2c_count; i++) {
195 if (dev->i2cinfo[i].slave == slave && dev->i2cinfo[i].sub == sub)
196 return dev->i2cinfo[i].data;
197 }
198 return 0;
199 }
200
201
202 static void pms_i2c_andor(struct pms *dev, int slave, int sub, int and, int or)
203 {
204 u8 tmp;
205
206 tmp = pms_i2c_read(dev, slave, sub);
207 tmp = (tmp & and) | or;
208 pms_i2c_write(dev, slave, sub, tmp);
209 }
210
211 /*
212 * Control functions
213 */
214
215
216 static void pms_videosource(struct pms *dev, short source)
217 {
218 switch (dev->decoder) {
219 case MOTOROLA:
220 break;
221 case PHILIPS2:
222 pms_i2c_andor(dev, 0x8a, 0x06, 0x7f, source ? 0x80 : 0);
223 break;
224 case PHILIPS1:
225 break;
226 }
227 mvv_write(dev, 0x2E, 0x31);
228 /* Was: mvv_write(dev, 0x2E, source ? 0x31 : 0x30);
229 But could not make this work correctly. Only Composite input
230 worked for me. */
231 }
232
233 static void pms_hue(struct pms *dev, short hue)
234 {
235 switch (dev->decoder) {
236 case MOTOROLA:
237 pms_i2c_write(dev, 0x8a, 0x00, hue);
238 break;
239 case PHILIPS2:
240 pms_i2c_write(dev, 0x8a, 0x07, hue);
241 break;
242 case PHILIPS1:
243 pms_i2c_write(dev, 0x42, 0x07, hue);
244 break;
245 }
246 }
247
248 static void pms_saturation(struct pms *dev, short sat)
249 {
250 switch (dev->decoder) {
251 case MOTOROLA:
252 pms_i2c_write(dev, 0x8a, 0x00, sat);
253 break;
254 case PHILIPS1:
255 pms_i2c_write(dev, 0x42, 0x12, sat);
256 break;
257 }
258 }
259
260
261 static void pms_contrast(struct pms *dev, short contrast)
262 {
263 switch (dev->decoder) {
264 case MOTOROLA:
265 pms_i2c_write(dev, 0x8a, 0x00, contrast);
266 break;
267 case PHILIPS1:
268 pms_i2c_write(dev, 0x42, 0x13, contrast);
269 break;
270 }
271 }
272
273 static void pms_brightness(struct pms *dev, short brightness)
274 {
275 switch (dev->decoder) {
276 case MOTOROLA:
277 pms_i2c_write(dev, 0x8a, 0x00, brightness);
278 pms_i2c_write(dev, 0x8a, 0x00, brightness);
279 pms_i2c_write(dev, 0x8a, 0x00, brightness);
280 break;
281 case PHILIPS1:
282 pms_i2c_write(dev, 0x42, 0x19, brightness);
283 break;
284 }
285 }
286
287
288 static void pms_format(struct pms *dev, short format)
289 {
290 int target;
291
292 dev->standard = format;
293
294 if (dev->decoder == PHILIPS1)
295 target = 0x42;
296 else if (dev->decoder == PHILIPS2)
297 target = 0x8a;
298 else
299 return;
300
301 switch (format) {
302 case 0: /* Auto */
303 pms_i2c_andor(dev, target, 0x0d, 0xfe, 0x00);
304 pms_i2c_andor(dev, target, 0x0f, 0x3f, 0x80);
305 break;
306 case 1: /* NTSC */
307 pms_i2c_andor(dev, target, 0x0d, 0xfe, 0x00);
308 pms_i2c_andor(dev, target, 0x0f, 0x3f, 0x40);
309 break;
310 case 2: /* PAL */
311 pms_i2c_andor(dev, target, 0x0d, 0xfe, 0x00);
312 pms_i2c_andor(dev, target, 0x0f, 0x3f, 0x00);
313 break;
314 case 3: /* SECAM */
315 pms_i2c_andor(dev, target, 0x0d, 0xfe, 0x01);
316 pms_i2c_andor(dev, target, 0x0f, 0x3f, 0x00);
317 break;
318 }
319 }
320
321 #ifdef FOR_FUTURE_EXPANSION
322
323 /*
324 * These features of the PMS card are not currently exposes. They
325 * could become a private v4l ioctl for PMSCONFIG or somesuch if
326 * people need it. We also don't yet use the PMS interrupt.
327 */
328
329 static void pms_hstart(struct pms *dev, short start)
330 {
331 switch (dev->decoder) {
332 case PHILIPS1:
333 pms_i2c_write(dev, 0x8a, 0x05, start);
334 pms_i2c_write(dev, 0x8a, 0x18, start);
335 break;
336 case PHILIPS2:
337 pms_i2c_write(dev, 0x42, 0x05, start);
338 pms_i2c_write(dev, 0x42, 0x18, start);
339 break;
340 }
341 }
342
343 /*
344 * Bandpass filters
345 */
346
347 static void pms_bandpass(struct pms *dev, short pass)
348 {
349 if (dev->decoder == PHILIPS2)
350 pms_i2c_andor(dev, 0x8a, 0x06, 0xcf, (pass & 0x03) << 4);
351 else if (dev->decoder == PHILIPS1)
352 pms_i2c_andor(dev, 0x42, 0x06, 0xcf, (pass & 0x03) << 4);
353 }
354
355 static void pms_antisnow(struct pms *dev, short snow)
356 {
357 if (dev->decoder == PHILIPS2)
358 pms_i2c_andor(dev, 0x8a, 0x06, 0xf3, (snow & 0x03) << 2);
359 else if (dev->decoder == PHILIPS1)
360 pms_i2c_andor(dev, 0x42, 0x06, 0xf3, (snow & 0x03) << 2);
361 }
362
363 static void pms_sharpness(struct pms *dev, short sharp)
364 {
365 if (dev->decoder == PHILIPS2)
366 pms_i2c_andor(dev, 0x8a, 0x06, 0xfc, sharp & 0x03);
367 else if (dev->decoder == PHILIPS1)
368 pms_i2c_andor(dev, 0x42, 0x06, 0xfc, sharp & 0x03);
369 }
370
371 static void pms_chromaagc(struct pms *dev, short agc)
372 {
373 if (dev->decoder == PHILIPS2)
374 pms_i2c_andor(dev, 0x8a, 0x0c, 0x9f, (agc & 0x03) << 5);
375 else if (dev->decoder == PHILIPS1)
376 pms_i2c_andor(dev, 0x42, 0x0c, 0x9f, (agc & 0x03) << 5);
377 }
378
379 static void pms_vertnoise(struct pms *dev, short noise)
380 {
381 if (dev->decoder == PHILIPS2)
382 pms_i2c_andor(dev, 0x8a, 0x10, 0xfc, noise & 3);
383 else if (dev->decoder == PHILIPS1)
384 pms_i2c_andor(dev, 0x42, 0x10, 0xfc, noise & 3);
385 }
386
387 static void pms_forcecolour(struct pms *dev, short colour)
388 {
389 if (dev->decoder == PHILIPS2)
390 pms_i2c_andor(dev, 0x8a, 0x0c, 0x7f, (colour & 1) << 7);
391 else if (dev->decoder == PHILIPS1)
392 pms_i2c_andor(dev, 0x42, 0x0c, 0x7, (colour & 1) << 7);
393 }
394
395 static void pms_antigamma(struct pms *dev, short gamma)
396 {
397 if (dev->decoder == PHILIPS2)
398 pms_i2c_andor(dev, 0xb8, 0x00, 0x7f, (gamma & 1) << 7);
399 else if (dev->decoder == PHILIPS1)
400 pms_i2c_andor(dev, 0x42, 0x20, 0x7, (gamma & 1) << 7);
401 }
402
403 static void pms_prefilter(struct pms *dev, short filter)
404 {
405 if (dev->decoder == PHILIPS2)
406 pms_i2c_andor(dev, 0x8a, 0x06, 0xbf, (filter & 1) << 6);
407 else if (dev->decoder == PHILIPS1)
408 pms_i2c_andor(dev, 0x42, 0x06, 0xbf, (filter & 1) << 6);
409 }
410
411 static void pms_hfilter(struct pms *dev, short filter)
412 {
413 if (dev->decoder == PHILIPS2)
414 pms_i2c_andor(dev, 0xb8, 0x04, 0x1f, (filter & 7) << 5);
415 else if (dev->decoder == PHILIPS1)
416 pms_i2c_andor(dev, 0x42, 0x24, 0x1f, (filter & 7) << 5);
417 }
418
419 static void pms_vfilter(struct pms *dev, short filter)
420 {
421 if (dev->decoder == PHILIPS2)
422 pms_i2c_andor(dev, 0xb8, 0x08, 0x9f, (filter & 3) << 5);
423 else if (dev->decoder == PHILIPS1)
424 pms_i2c_andor(dev, 0x42, 0x28, 0x9f, (filter & 3) << 5);
425 }
426
427 static void pms_killcolour(struct pms *dev, short colour)
428 {
429 if (dev->decoder == PHILIPS2) {
430 pms_i2c_andor(dev, 0x8a, 0x08, 0x07, (colour & 0x1f) << 3);
431 pms_i2c_andor(dev, 0x8a, 0x09, 0x07, (colour & 0x1f) << 3);
432 } else if (dev->decoder == PHILIPS1) {
433 pms_i2c_andor(dev, 0x42, 0x08, 0x07, (colour & 0x1f) << 3);
434 pms_i2c_andor(dev, 0x42, 0x09, 0x07, (colour & 0x1f) << 3);
435 }
436 }
437
438 static void pms_chromagain(struct pms *dev, short chroma)
439 {
440 if (dev->decoder == PHILIPS2)
441 pms_i2c_write(dev, 0x8a, 0x11, chroma);
442 else if (dev->decoder == PHILIPS1)
443 pms_i2c_write(dev, 0x42, 0x11, chroma);
444 }
445
446
447 static void pms_spacialcompl(struct pms *dev, short data)
448 {
449 mvv_write(dev, 0x3b, data);
450 }
451
452 static void pms_spacialcomph(struct pms *dev, short data)
453 {
454 mvv_write(dev, 0x3a, data);
455 }
456
457 static void pms_vstart(struct pms *dev, short start)
458 {
459 mvv_write(dev, 0x16, start);
460 mvv_write(dev, 0x17, (start >> 8) & 0x01);
461 }
462
463 #endif
464
465 static void pms_secamcross(struct pms *dev, short cross)
466 {
467 if (dev->decoder == PHILIPS2)
468 pms_i2c_andor(dev, 0x8a, 0x0f, 0xdf, (cross & 1) << 5);
469 else if (dev->decoder == PHILIPS1)
470 pms_i2c_andor(dev, 0x42, 0x0f, 0xdf, (cross & 1) << 5);
471 }
472
473
474 static void pms_swsense(struct pms *dev, short sense)
475 {
476 if (dev->decoder == PHILIPS2) {
477 pms_i2c_write(dev, 0x8a, 0x0a, sense);
478 pms_i2c_write(dev, 0x8a, 0x0b, sense);
479 } else if (dev->decoder == PHILIPS1) {
480 pms_i2c_write(dev, 0x42, 0x0a, sense);
481 pms_i2c_write(dev, 0x42, 0x0b, sense);
482 }
483 }
484
485
486 static void pms_framerate(struct pms *dev, short frr)
487 {
488 int fps = (dev->std & V4L2_STD_525_60) ? 30 : 25;
489
490 if (frr == 0)
491 return;
492 fps = fps/frr;
493 mvv_write(dev, 0x14, 0x80 | fps);
494 mvv_write(dev, 0x15, 1);
495 }
496
497 static void pms_vert(struct pms *dev, u8 deciden, u8 decinum)
498 {
499 mvv_write(dev, 0x1c, deciden); /* Denominator */
500 mvv_write(dev, 0x1d, decinum); /* Numerator */
501 }
502
503 /*
504 * Turn 16bit ratios into best small ratio the chipset can grok
505 */
506
507 static void pms_vertdeci(struct pms *dev, unsigned short decinum, unsigned short deciden)
508 {
509 /* Knock it down by / 5 once */
510 if (decinum % 5 == 0) {
511 deciden /= 5;
512 decinum /= 5;
513 }
514 /*
515 * 3's
516 */
517 while (decinum % 3 == 0 && deciden % 3 == 0) {
518 deciden /= 3;
519 decinum /= 3;
520 }
521 /*
522 * 2's
523 */
524 while (decinum % 2 == 0 && deciden % 2 == 0) {
525 decinum /= 2;
526 deciden /= 2;
527 }
528 /*
529 * Fudgyify
530 */
531 while (deciden > 32) {
532 deciden /= 2;
533 decinum = (decinum + 1) / 2;
534 }
535 if (deciden == 32)
536 deciden--;
537 pms_vert(dev, deciden, decinum);
538 }
539
540 static void pms_horzdeci(struct pms *dev, short decinum, short deciden)
541 {
542 if (decinum <= 512) {
543 if (decinum % 5 == 0) {
544 decinum /= 5;
545 deciden /= 5;
546 }
547 } else {
548 decinum = 512;
549 deciden = 640; /* 768 would be ideal */
550 }
551
552 while (((decinum | deciden) & 1) == 0) {
553 decinum >>= 1;
554 deciden >>= 1;
555 }
556 while (deciden > 32) {
557 deciden >>= 1;
558 decinum = (decinum + 1) >> 1;
559 }
560 if (deciden == 32)
561 deciden--;
562
563 mvv_write(dev, 0x24, 0x80 | deciden);
564 mvv_write(dev, 0x25, decinum);
565 }
566
567 static void pms_resolution(struct pms *dev, short width, short height)
568 {
569 int fg_height;
570
571 fg_height = height;
572 if (fg_height > 280)
573 fg_height = 280;
574
575 mvv_write(dev, 0x18, fg_height);
576 mvv_write(dev, 0x19, fg_height >> 8);
577
578 if (dev->std & V4L2_STD_525_60) {
579 mvv_write(dev, 0x1a, 0xfc);
580 mvv_write(dev, 0x1b, 0x00);
581 if (height > fg_height)
582 pms_vertdeci(dev, 240, 240);
583 else
584 pms_vertdeci(dev, fg_height, 240);
585 } else {
586 mvv_write(dev, 0x1a, 0x1a);
587 mvv_write(dev, 0x1b, 0x01);
588 if (fg_height > 256)
589 pms_vertdeci(dev, 270, 270);
590 else
591 pms_vertdeci(dev, fg_height, 270);
592 }
593 mvv_write(dev, 0x12, 0);
594 mvv_write(dev, 0x13, MVVMEMORYWIDTH);
595 mvv_write(dev, 0x42, 0x00);
596 mvv_write(dev, 0x43, 0x00);
597 mvv_write(dev, 0x44, MVVMEMORYWIDTH);
598
599 mvv_write(dev, 0x22, width + 8);
600 mvv_write(dev, 0x23, (width + 8) >> 8);
601
602 if (dev->std & V4L2_STD_525_60)
603 pms_horzdeci(dev, width, 640);
604 else
605 pms_horzdeci(dev, width + 8, 768);
606
607 mvv_write(dev, 0x30, mvv_read(dev, 0x30) & 0xfe);
608 mvv_write(dev, 0x08, mvv_read(dev, 0x08) | 0x01);
609 mvv_write(dev, 0x01, mvv_read(dev, 0x01) & 0xfd);
610 mvv_write(dev, 0x32, 0x00);
611 mvv_write(dev, 0x33, MVVMEMORYWIDTH);
612 }
613
614
615 /*
616 * Set Input
617 */
618
619 static void pms_vcrinput(struct pms *dev, short input)
620 {
621 if (dev->decoder == PHILIPS2)
622 pms_i2c_andor(dev, 0x8a, 0x0d, 0x7f, (input & 1) << 7);
623 else if (dev->decoder == PHILIPS1)
624 pms_i2c_andor(dev, 0x42, 0x0d, 0x7f, (input & 1) << 7);
625 }
626
627
628 static int pms_capture(struct pms *dev, char __user *buf, int rgb555, int count)
629 {
630 int y;
631 int dw = 2 * dev->width;
632 char tmp[dw + 32]; /* using a temp buffer is faster than direct */
633 int cnt = 0;
634 int len = 0;
635 unsigned char r8 = 0x5; /* value for reg8 */
636
637 if (rgb555)
638 r8 |= 0x20; /* else use untranslated rgb = 565 */
639 mvv_write(dev, 0x08, r8); /* capture rgb555/565, init DRAM, PC enable */
640
641 /* printf("%d %d %d %d %d %x %x\n",width,height,voff,nom,den,mvv_buf); */
642
643 for (y = 0; y < dev->height; y++) {
644 writeb(0, dev->mem); /* synchronisiert neue Zeile */
645
646 /*
647 * This is in truth a fifo, be very careful as if you
648 * forgot this odd things will occur 8)
649 */
650
651 memcpy_fromio(tmp, dev->mem, dw + 32); /* discard 16 word */
652 cnt -= dev->height;
653 while (cnt <= 0) {
654 /*
655 * Don't copy too far
656 */
657 int dt = dw;
658 if (dt + len > count)
659 dt = count - len;
660 cnt += dev->height;
661 if (copy_to_user(buf, tmp + 32, dt))
662 return len ? len : -EFAULT;
663 buf += dt;
664 len += dt;
665 }
666 }
667 return len;
668 }
669
670
671 /*
672 * Video4linux interfacing
673 */
674
675 static int pms_querycap(struct file *file, void *priv,
676 struct v4l2_capability *vcap)
677 {
678 struct pms *dev = video_drvdata(file);
679
680 strlcpy(vcap->driver, dev->v4l2_dev.name, sizeof(vcap->driver));
681 strlcpy(vcap->card, "Mediavision PMS", sizeof(vcap->card));
682 strlcpy(vcap->bus_info, "ISA", sizeof(vcap->bus_info));
683 vcap->version = KERNEL_VERSION(0, 0, 3);
684 vcap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE;
685 return 0;
686 }
687
688 static int pms_enum_input(struct file *file, void *fh, struct v4l2_input *vin)
689 {
690 static const char *inputs[4] = {
691 "Composite",
692 "S-Video",
693 "Composite (VCR)",
694 "S-Video (VCR)"
695 };
696
697 if (vin->index > 3)
698 return -EINVAL;
699 strlcpy(vin->name, inputs[vin->index], sizeof(vin->name));
700 vin->type = V4L2_INPUT_TYPE_CAMERA;
701 vin->audioset = 0;
702 vin->tuner = 0;
703 vin->std = V4L2_STD_ALL;
704 vin->status = 0;
705 return 0;
706 }
707
708 static int pms_g_input(struct file *file, void *fh, unsigned int *inp)
709 {
710 struct pms *dev = video_drvdata(file);
711
712 *inp = dev->input;
713 return 0;
714 }
715
716 static int pms_s_input(struct file *file, void *fh, unsigned int inp)
717 {
718 struct pms *dev = video_drvdata(file);
719
720 if (inp > 3)
721 return -EINVAL;
722
723 mutex_lock(&dev->lock);
724 dev->input = inp;
725 pms_videosource(dev, inp & 1);
726 pms_vcrinput(dev, inp >> 1);
727 mutex_unlock(&dev->lock);
728 return 0;
729 }
730
731 static int pms_g_std(struct file *file, void *fh, v4l2_std_id *std)
732 {
733 struct pms *dev = video_drvdata(file);
734
735 *std = dev->std;
736 return 0;
737 }
738
739 static int pms_s_std(struct file *file, void *fh, v4l2_std_id *std)
740 {
741 struct pms *dev = video_drvdata(file);
742 int ret = 0;
743
744 dev->std = *std;
745 mutex_lock(&dev->lock);
746 if (dev->std & V4L2_STD_NTSC) {
747 pms_framerate(dev, 30);
748 pms_secamcross(dev, 0);
749 pms_format(dev, 1);
750 } else if (dev->std & V4L2_STD_PAL) {
751 pms_framerate(dev, 25);
752 pms_secamcross(dev, 0);
753 pms_format(dev, 2);
754 } else if (dev->std & V4L2_STD_SECAM) {
755 pms_framerate(dev, 25);
756 pms_secamcross(dev, 1);
757 pms_format(dev, 2);
758 } else {
759 ret = -EINVAL;
760 }
761 /*
762 switch (v->mode) {
763 case VIDEO_MODE_AUTO:
764 pms_framerate(dev, 25);
765 pms_secamcross(dev, 0);
766 pms_format(dev, 0);
767 break;
768 }*/
769 mutex_unlock(&dev->lock);
770 return 0;
771 }
772
773 static int pms_queryctrl(struct file *file, void *priv,
774 struct v4l2_queryctrl *qc)
775 {
776 switch (qc->id) {
777 case V4L2_CID_BRIGHTNESS:
778 return v4l2_ctrl_query_fill(qc, 0, 255, 1, 139);
779 case V4L2_CID_CONTRAST:
780 return v4l2_ctrl_query_fill(qc, 0, 255, 1, 70);
781 case V4L2_CID_SATURATION:
782 return v4l2_ctrl_query_fill(qc, 0, 255, 1, 64);
783 case V4L2_CID_HUE:
784 return v4l2_ctrl_query_fill(qc, 0, 255, 1, 0);
785 }
786 return -EINVAL;
787 }
788
789 static int pms_g_ctrl(struct file *file, void *priv,
790 struct v4l2_control *ctrl)
791 {
792 struct pms *dev = video_drvdata(file);
793 int ret = 0;
794
795 switch (ctrl->id) {
796 case V4L2_CID_BRIGHTNESS:
797 ctrl->value = dev->brightness;
798 break;
799 case V4L2_CID_CONTRAST:
800 ctrl->value = dev->contrast;
801 break;
802 case V4L2_CID_SATURATION:
803 ctrl->value = dev->saturation;
804 break;
805 case V4L2_CID_HUE:
806 ctrl->value = dev->hue;
807 break;
808 default:
809 ret = -EINVAL;
810 break;
811 }
812 return ret;
813 }
814
815 static int pms_s_ctrl(struct file *file, void *priv,
816 struct v4l2_control *ctrl)
817 {
818 struct pms *dev = video_drvdata(file);
819 int ret = 0;
820
821 mutex_lock(&dev->lock);
822 switch (ctrl->id) {
823 case V4L2_CID_BRIGHTNESS:
824 dev->brightness = ctrl->value;
825 pms_brightness(dev, dev->brightness);
826 break;
827 case V4L2_CID_CONTRAST:
828 dev->contrast = ctrl->value;
829 pms_contrast(dev, dev->contrast);
830 break;
831 case V4L2_CID_SATURATION:
832 dev->saturation = ctrl->value;
833 pms_saturation(dev, dev->saturation);
834 break;
835 case V4L2_CID_HUE:
836 dev->hue = ctrl->value;
837 pms_hue(dev, dev->hue);
838 break;
839 default:
840 ret = -EINVAL;
841 break;
842 }
843 mutex_unlock(&dev->lock);
844 return ret;
845 }
846
847 static int pms_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt)
848 {
849 struct pms *dev = video_drvdata(file);
850 struct v4l2_pix_format *pix = &fmt->fmt.pix;
851
852 pix->width = dev->width;
853 pix->height = dev->height;
854 pix->pixelformat = dev->width == 15 ?
855 V4L2_PIX_FMT_RGB555 : V4L2_PIX_FMT_RGB565;
856 pix->field = V4L2_FIELD_NONE;
857 pix->bytesperline = 2 * dev->width;
858 pix->sizeimage = 2 * dev->width * dev->height;
859 /* Just a guess */
860 pix->colorspace = V4L2_COLORSPACE_SRGB;
861 return 0;
862 }
863
864 static int pms_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt)
865 {
866 struct v4l2_pix_format *pix = &fmt->fmt.pix;
867
868 if (pix->height < 16 || pix->height > 480)
869 return -EINVAL;
870 if (pix->width < 16 || pix->width > 640)
871 return -EINVAL;
872 if (pix->pixelformat != V4L2_PIX_FMT_RGB555 &&
873 pix->pixelformat != V4L2_PIX_FMT_RGB565)
874 return -EINVAL;
875 pix->field = V4L2_FIELD_NONE;
876 pix->bytesperline = 2 * pix->width;
877 pix->sizeimage = 2 * pix->width * pix->height;
878 /* Just a guess */
879 pix->colorspace = V4L2_COLORSPACE_SRGB;
880 return 0;
881 }
882
883 static int pms_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt)
884 {
885 struct pms *dev = video_drvdata(file);
886 struct v4l2_pix_format *pix = &fmt->fmt.pix;
887 int ret = pms_try_fmt_vid_cap(file, fh, fmt);
888
889 if (ret)
890 return ret;
891 mutex_lock(&dev->lock);
892 dev->width = pix->width;
893 dev->height = pix->height;
894 dev->depth = (pix->pixelformat == V4L2_PIX_FMT_RGB555) ? 15 : 16;
895 pms_resolution(dev, dev->width, dev->height);
896 /* Ok we figured out what to use from our wide choice */
897 mutex_unlock(&dev->lock);
898 return 0;
899 }
900
901 static int pms_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *fmt)
902 {
903 static struct v4l2_fmtdesc formats[] = {
904 { 0, 0, 0,
905 "RGB 5:5:5", V4L2_PIX_FMT_RGB555,
906 { 0, 0, 0, 0 }
907 },
908 { 0, 0, 0,
909 "RGB 5:6:5", V4L2_PIX_FMT_RGB565,
910 { 0, 0, 0, 0 }
911 },
912 };
913 enum v4l2_buf_type type = fmt->type;
914
915 if (fmt->index > 1)
916 return -EINVAL;
917
918 *fmt = formats[fmt->index];
919 fmt->type = type;
920 return 0;
921 }
922
923 static ssize_t pms_read(struct file *file, char __user *buf,
924 size_t count, loff_t *ppos)
925 {
926 struct pms *dev = video_drvdata(file);
927 int len;
928
929 mutex_lock(&dev->lock);
930 len = pms_capture(dev, buf, (dev->depth == 15), count);
931 mutex_unlock(&dev->lock);
932 return len;
933 }
934
935 static int pms_exclusive_open(struct file *file)
936 {
937 struct pms *dev = video_drvdata(file);
938
939 return test_and_set_bit(0, &dev->in_use) ? -EBUSY : 0;
940 }
941
942 static int pms_exclusive_release(struct file *file)
943 {
944 struct pms *dev = video_drvdata(file);
945
946 clear_bit(0, &dev->in_use);
947 return 0;
948 }
949
950 static const struct v4l2_file_operations pms_fops = {
951 .owner = THIS_MODULE,
952 .open = pms_exclusive_open,
953 .release = pms_exclusive_release,
954 .ioctl = video_ioctl2,
955 .read = pms_read,
956 };
957
958 static const struct v4l2_ioctl_ops pms_ioctl_ops = {
959 .vidioc_querycap = pms_querycap,
960 .vidioc_g_input = pms_g_input,
961 .vidioc_s_input = pms_s_input,
962 .vidioc_enum_input = pms_enum_input,
963 .vidioc_g_std = pms_g_std,
964 .vidioc_s_std = pms_s_std,
965 .vidioc_queryctrl = pms_queryctrl,
966 .vidioc_g_ctrl = pms_g_ctrl,
967 .vidioc_s_ctrl = pms_s_ctrl,
968 .vidioc_enum_fmt_vid_cap = pms_enum_fmt_vid_cap,
969 .vidioc_g_fmt_vid_cap = pms_g_fmt_vid_cap,
970 .vidioc_s_fmt_vid_cap = pms_s_fmt_vid_cap,
971 .vidioc_try_fmt_vid_cap = pms_try_fmt_vid_cap,
972 };
973
974 /*
975 * Probe for and initialise the Mediavision PMS
976 */
977
978 static int init_mediavision(struct pms *dev)
979 {
980 int id;
981 int idec, decst;
982 int i;
983 static const unsigned char i2c_defs[] = {
984 0x4c, 0x30, 0x00, 0xe8,
985 0xb6, 0xe2, 0x00, 0x00,
986 0xff, 0xff, 0x00, 0x00,
987 0x00, 0x00, 0x78, 0x98,
988 0x00, 0x00, 0x00, 0x00,
989 0x34, 0x0a, 0xf4, 0xce,
990 0xe4
991 };
992
993 dev->mem = ioremap(mem_base, 0x800);
994 if (!dev->mem)
995 return -ENOMEM;
996
997 if (!request_region(0x9a01, 1, "Mediavision PMS config")) {
998 printk(KERN_WARNING "mediavision: unable to detect: 0x9a01 in use.\n");
999 iounmap(dev->mem);
1000 return -EBUSY;
1001 }
1002 if (!request_region(dev->io, 3, "Mediavision PMS")) {
1003 printk(KERN_WARNING "mediavision: I/O port %d in use.\n", dev->io);
1004 release_region(0x9a01, 1);
1005 iounmap(dev->mem);
1006 return -EBUSY;
1007 }
1008 outb(0xb8, 0x9a01); /* Unlock */
1009 outb(dev->io >> 4, 0x9a01); /* Set IO port */
1010
1011
1012 id = mvv_read(dev, 3);
1013 decst = pms_i2c_stat(dev, 0x43);
1014
1015 if (decst != -1)
1016 idec = 2;
1017 else if (pms_i2c_stat(dev, 0xb9) != -1)
1018 idec = 3;
1019 else if (pms_i2c_stat(dev, 0x8b) != -1)
1020 idec = 1;
1021 else
1022 idec = 0;
1023
1024 printk(KERN_INFO "PMS type is %d\n", idec);
1025 if (idec == 0) {
1026 release_region(dev->io, 3);
1027 release_region(0x9a01, 1);
1028 iounmap(dev->mem);
1029 return -ENODEV;
1030 }
1031
1032 /*
1033 * Ok we have a PMS of some sort
1034 */
1035
1036 mvv_write(dev, 0x04, mem_base >> 12); /* Set the memory area */
1037
1038 /* Ok now load the defaults */
1039
1040 for (i = 0; i < 0x19; i++) {
1041 if (i2c_defs[i] == 0xff)
1042 pms_i2c_andor(dev, 0x8a, i, 0x07, 0x00);
1043 else
1044 pms_i2c_write(dev, 0x8a, i, i2c_defs[i]);
1045 }
1046
1047 pms_i2c_write(dev, 0xb8, 0x00, 0x12);
1048 pms_i2c_write(dev, 0xb8, 0x04, 0x00);
1049 pms_i2c_write(dev, 0xb8, 0x07, 0x00);
1050 pms_i2c_write(dev, 0xb8, 0x08, 0x00);
1051 pms_i2c_write(dev, 0xb8, 0x09, 0xff);
1052 pms_i2c_write(dev, 0xb8, 0x0a, 0x00);
1053 pms_i2c_write(dev, 0xb8, 0x0b, 0x10);
1054 pms_i2c_write(dev, 0xb8, 0x10, 0x03);
1055
1056 mvv_write(dev, 0x01, 0x00);
1057 mvv_write(dev, 0x05, 0xa0);
1058 mvv_write(dev, 0x08, 0x25);
1059 mvv_write(dev, 0x09, 0x00);
1060 mvv_write(dev, 0x0a, 0x20 | MVVMEMORYWIDTH);
1061
1062 mvv_write(dev, 0x10, 0x02);
1063 mvv_write(dev, 0x1e, 0x0c);
1064 mvv_write(dev, 0x1f, 0x03);
1065 mvv_write(dev, 0x26, 0x06);
1066
1067 mvv_write(dev, 0x2b, 0x00);
1068 mvv_write(dev, 0x2c, 0x20);
1069 mvv_write(dev, 0x2d, 0x00);
1070 mvv_write(dev, 0x2f, 0x70);
1071 mvv_write(dev, 0x32, 0x00);
1072 mvv_write(dev, 0x33, MVVMEMORYWIDTH);
1073 mvv_write(dev, 0x34, 0x00);
1074 mvv_write(dev, 0x35, 0x00);
1075 mvv_write(dev, 0x3a, 0x80);
1076 mvv_write(dev, 0x3b, 0x10);
1077 mvv_write(dev, 0x20, 0x00);
1078 mvv_write(dev, 0x21, 0x00);
1079 mvv_write(dev, 0x30, 0x22);
1080 return 0;
1081 }
1082
1083 /*
1084 * Initialization and module stuff
1085 */
1086
1087 #ifndef MODULE
1088 static int enable;
1089 module_param(enable, int, 0);
1090 #endif
1091
1092 static int __init pms_init(void)
1093 {
1094 struct pms *dev = &pms_card;
1095 struct v4l2_device *v4l2_dev = &dev->v4l2_dev;
1096 int res;
1097
1098 strlcpy(v4l2_dev->name, "pms", sizeof(v4l2_dev->name));
1099
1100 v4l2_info(v4l2_dev, "Mediavision Pro Movie Studio driver 0.03\n");
1101
1102 #ifndef MODULE
1103 if (!enable) {
1104 v4l2_err(v4l2_dev,
1105 "PMS: not enabled, use pms.enable=1 to probe\n");
1106 return -ENODEV;
1107 }
1108 #endif
1109
1110 dev->decoder = PHILIPS2;
1111 dev->io = io_port;
1112 dev->data = io_port + 1;
1113
1114 if (init_mediavision(dev)) {
1115 v4l2_err(v4l2_dev, "Board not found.\n");
1116 return -ENODEV;
1117 }
1118
1119 res = v4l2_device_register(NULL, v4l2_dev);
1120 if (res < 0) {
1121 v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
1122 return res;
1123 }
1124
1125 strlcpy(dev->vdev.name, v4l2_dev->name, sizeof(dev->vdev.name));
1126 dev->vdev.v4l2_dev = v4l2_dev;
1127 dev->vdev.fops = &pms_fops;
1128 dev->vdev.ioctl_ops = &pms_ioctl_ops;
1129 dev->vdev.release = video_device_release_empty;
1130 video_set_drvdata(&dev->vdev, dev);
1131 mutex_init(&dev->lock);
1132 dev->std = V4L2_STD_NTSC_M;
1133 dev->height = 240;
1134 dev->width = 320;
1135 dev->depth = 15;
1136 dev->brightness = 139;
1137 dev->contrast = 70;
1138 dev->hue = 0;
1139 dev->saturation = 64;
1140 pms_swsense(dev, 75);
1141 pms_resolution(dev, 320, 240);
1142 pms_videosource(dev, 0);
1143 pms_vcrinput(dev, 0);
1144 if (video_register_device(&dev->vdev, VFL_TYPE_GRABBER, video_nr) < 0) {
1145 v4l2_device_unregister(&dev->v4l2_dev);
1146 release_region(dev->io, 3);
1147 release_region(0x9a01, 1);
1148 iounmap(dev->mem);
1149 return -EINVAL;
1150 }
1151 return 0;
1152 }
1153
1154 static void __exit pms_exit(void)
1155 {
1156 struct pms *dev = &pms_card;
1157
1158 video_unregister_device(&dev->vdev);
1159 release_region(dev->io, 3);
1160 release_region(0x9a01, 1);
1161 iounmap(dev->mem);
1162 }
1163
1164 module_init(pms_init);
1165 module_exit(pms_exit);
kernel source for telekom puls (alcatel/mediatek)