projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge branch 'cleanup-hwmod' into cleanup
[deliverable/linux.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/mm.h>
29 #include <linux/ioport.h>
30 #include <linux/init.h>
31 #include <linux/mutex.h>
32 #include <linux/slab.h>
33 #include <linux/uaccess.h>
34 #include <linux/isa.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-ctrls.h>
41 #include <media/v4l2-fh.h>
42 #include <media/v4l2-event.h>
43 #include <media/v4l2-device.h>
44
45 MODULE_LICENSE("GPL");
46 MODULE_VERSION("0.0.5");
47
48 #define MOTOROLA 1
49 #define PHILIPS2 2 /* SAA7191 */
50 #define PHILIPS1 3
51 #define MVVMEMORYWIDTH 0x40 /* 512 bytes */
52
53 struct i2c_info {
54 u8 slave;
55 u8 sub;
56 u8 data;
57 u8 hits;
58 };
59
60 struct pms {
61 struct v4l2_device v4l2_dev;
62 struct video_device vdev;
63 struct v4l2_ctrl_handler hdl;
64 int height;
65 int width;
66 int depth;
67 int input;
68 struct mutex lock;
69 int i2c_count;
70 struct i2c_info i2cinfo[64];
71
72 int decoder;
73 int standard; /* 0 - auto 1 - ntsc 2 - pal 3 - secam */
74 v4l2_std_id std;
75 int io;
76 int data;
77 void __iomem *mem;
78 };
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 snprintf(vcap->bus_info, sizeof(vcap->bus_info),
683 "ISA:%s", dev->v4l2_dev.name);
684 vcap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE;
685 vcap->capabilities = vcap->device_caps | V4L2_CAP_DEVICE_CAPS;
686 return 0;
687 }
688
689 static int pms_enum_input(struct file *file, void *fh, struct v4l2_input *vin)
690 {
691 static const char *inputs[4] = {
692 "Composite",
693 "S-Video",
694 "Composite (VCR)",
695 "S-Video (VCR)"
696 };
697
698 if (vin->index > 3)
699 return -EINVAL;
700 strlcpy(vin->name, inputs[vin->index], sizeof(vin->name));
701 vin->type = V4L2_INPUT_TYPE_CAMERA;
702 vin->audioset = 0;
703 vin->tuner = 0;
704 vin->std = V4L2_STD_ALL;
705 vin->status = 0;
706 return 0;
707 }
708
709 static int pms_g_input(struct file *file, void *fh, unsigned int *inp)
710 {
711 struct pms *dev = video_drvdata(file);
712
713 *inp = dev->input;
714 return 0;
715 }
716
717 static int pms_s_input(struct file *file, void *fh, unsigned int inp)
718 {
719 struct pms *dev = video_drvdata(file);
720
721 if (inp > 3)
722 return -EINVAL;
723
724 dev->input = inp;
725 pms_videosource(dev, inp & 1);
726 pms_vcrinput(dev, inp >> 1);
727 return 0;
728 }
729
730 static int pms_g_std(struct file *file, void *fh, v4l2_std_id *std)
731 {
732 struct pms *dev = video_drvdata(file);
733
734 *std = dev->std;
735 return 0;
736 }
737
738 static int pms_s_std(struct file *file, void *fh, v4l2_std_id *std)
739 {
740 struct pms *dev = video_drvdata(file);
741 int ret = 0;
742
743 dev->std = *std;
744 if (dev->std & V4L2_STD_NTSC) {
745 pms_framerate(dev, 30);
746 pms_secamcross(dev, 0);
747 pms_format(dev, 1);
748 } else if (dev->std & V4L2_STD_PAL) {
749 pms_framerate(dev, 25);
750 pms_secamcross(dev, 0);
751 pms_format(dev, 2);
752 } else if (dev->std & V4L2_STD_SECAM) {
753 pms_framerate(dev, 25);
754 pms_secamcross(dev, 1);
755 pms_format(dev, 2);
756 } else {
757 ret = -EINVAL;
758 }
759 /*
760 switch (v->mode) {
761 case VIDEO_MODE_AUTO:
762 pms_framerate(dev, 25);
763 pms_secamcross(dev, 0);
764 pms_format(dev, 0);
765 break;
766 }*/
767 return ret;
768 }
769
770 static int pms_s_ctrl(struct v4l2_ctrl *ctrl)
771 {
772 struct pms *dev = container_of(ctrl->handler, struct pms, hdl);
773 int ret = 0;
774
775 switch (ctrl->id) {
776 case V4L2_CID_BRIGHTNESS:
777 pms_brightness(dev, ctrl->val);
778 break;
779 case V4L2_CID_CONTRAST:
780 pms_contrast(dev, ctrl->val);
781 break;
782 case V4L2_CID_SATURATION:
783 pms_saturation(dev, ctrl->val);
784 break;
785 case V4L2_CID_HUE:
786 pms_hue(dev, ctrl->val);
787 break;
788 default:
789 ret = -EINVAL;
790 break;
791 }
792 return ret;
793 }
794
795 static int pms_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt)
796 {
797 struct pms *dev = video_drvdata(file);
798 struct v4l2_pix_format *pix = &fmt->fmt.pix;
799
800 pix->width = dev->width;
801 pix->height = dev->height;
802 pix->pixelformat = dev->width == 15 ?
803 V4L2_PIX_FMT_RGB555 : V4L2_PIX_FMT_RGB565;
804 pix->field = V4L2_FIELD_NONE;
805 pix->bytesperline = 2 * dev->width;
806 pix->sizeimage = 2 * dev->width * dev->height;
807 /* Just a guess */
808 pix->colorspace = V4L2_COLORSPACE_SRGB;
809 return 0;
810 }
811
812 static int pms_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt)
813 {
814 struct v4l2_pix_format *pix = &fmt->fmt.pix;
815
816 if (pix->height < 16 || pix->height > 480)
817 return -EINVAL;
818 if (pix->width < 16 || pix->width > 640)
819 return -EINVAL;
820 if (pix->pixelformat != V4L2_PIX_FMT_RGB555 &&
821 pix->pixelformat != V4L2_PIX_FMT_RGB565)
822 return -EINVAL;
823 pix->field = V4L2_FIELD_NONE;
824 pix->bytesperline = 2 * pix->width;
825 pix->sizeimage = 2 * pix->width * pix->height;
826 /* Just a guess */
827 pix->colorspace = V4L2_COLORSPACE_SRGB;
828 return 0;
829 }
830
831 static int pms_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt)
832 {
833 struct pms *dev = video_drvdata(file);
834 struct v4l2_pix_format *pix = &fmt->fmt.pix;
835 int ret = pms_try_fmt_vid_cap(file, fh, fmt);
836
837 if (ret)
838 return ret;
839 dev->width = pix->width;
840 dev->height = pix->height;
841 dev->depth = (pix->pixelformat == V4L2_PIX_FMT_RGB555) ? 15 : 16;
842 pms_resolution(dev, dev->width, dev->height);
843 /* Ok we figured out what to use from our wide choice */
844 return 0;
845 }
846
847 static int pms_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *fmt)
848 {
849 static struct v4l2_fmtdesc formats[] = {
850 { 0, 0, 0,
851 "RGB 5:5:5", V4L2_PIX_FMT_RGB555,
852 { 0, 0, 0, 0 }
853 },
854 { 1, 0, 0,
855 "RGB 5:6:5", V4L2_PIX_FMT_RGB565,
856 { 0, 0, 0, 0 }
857 },
858 };
859 enum v4l2_buf_type type = fmt->type;
860
861 if (fmt->index > 1)
862 return -EINVAL;
863
864 *fmt = formats[fmt->index];
865 fmt->type = type;
866 return 0;
867 }
868
869 static ssize_t pms_read(struct file *file, char __user *buf,
870 size_t count, loff_t *ppos)
871 {
872 struct pms *dev = video_drvdata(file);
873 int len;
874
875 len = pms_capture(dev, buf, (dev->depth == 15), count);
876 return len;
877 }
878
879 static unsigned int pms_poll(struct file *file, struct poll_table_struct *wait)
880 {
881 struct v4l2_fh *fh = file->private_data;
882 unsigned int res = POLLIN | POLLRDNORM;
883
884 if (v4l2_event_pending(fh))
885 res |= POLLPRI;
886 poll_wait(file, &fh->wait, wait);
887 return res;
888 }
889
890 static const struct v4l2_file_operations pms_fops = {
891 .owner = THIS_MODULE,
892 .open = v4l2_fh_open,
893 .release = v4l2_fh_release,
894 .poll = pms_poll,
895 .unlocked_ioctl = video_ioctl2,
896 .read = pms_read,
897 };
898
899 static const struct v4l2_ioctl_ops pms_ioctl_ops = {
900 .vidioc_querycap = pms_querycap,
901 .vidioc_g_input = pms_g_input,
902 .vidioc_s_input = pms_s_input,
903 .vidioc_enum_input = pms_enum_input,
904 .vidioc_g_std = pms_g_std,
905 .vidioc_s_std = pms_s_std,
906 .vidioc_enum_fmt_vid_cap = pms_enum_fmt_vid_cap,
907 .vidioc_g_fmt_vid_cap = pms_g_fmt_vid_cap,
908 .vidioc_s_fmt_vid_cap = pms_s_fmt_vid_cap,
909 .vidioc_try_fmt_vid_cap = pms_try_fmt_vid_cap,
910 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
911 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
912 };
913
914 /*
915 * Probe for and initialise the Mediavision PMS
916 */
917
918 static int init_mediavision(struct pms *dev)
919 {
920 int idec, decst;
921 int i;
922 static const unsigned char i2c_defs[] = {
923 0x4c, 0x30, 0x00, 0xe8,
924 0xb6, 0xe2, 0x00, 0x00,
925 0xff, 0xff, 0x00, 0x00,
926 0x00, 0x00, 0x78, 0x98,
927 0x00, 0x00, 0x00, 0x00,
928 0x34, 0x0a, 0xf4, 0xce,
929 0xe4
930 };
931
932 dev->mem = ioremap(mem_base, 0x800);
933 if (!dev->mem)
934 return -ENOMEM;
935
936 if (!request_region(0x9a01, 1, "Mediavision PMS config")) {
937 printk(KERN_WARNING "mediavision: unable to detect: 0x9a01 in use.\n");
938 iounmap(dev->mem);
939 return -EBUSY;
940 }
941 if (!request_region(dev->io, 3, "Mediavision PMS")) {
942 printk(KERN_WARNING "mediavision: I/O port %d in use.\n", dev->io);
943 release_region(0x9a01, 1);
944 iounmap(dev->mem);
945 return -EBUSY;
946 }
947 outb(0xb8, 0x9a01); /* Unlock */
948 outb(dev->io >> 4, 0x9a01); /* Set IO port */
949
950
951 decst = pms_i2c_stat(dev, 0x43);
952
953 if (decst != -1)
954 idec = 2;
955 else if (pms_i2c_stat(dev, 0xb9) != -1)
956 idec = 3;
957 else if (pms_i2c_stat(dev, 0x8b) != -1)
958 idec = 1;
959 else
960 idec = 0;
961
962 printk(KERN_INFO "PMS type is %d\n", idec);
963 if (idec == 0) {
964 release_region(dev->io, 3);
965 release_region(0x9a01, 1);
966 iounmap(dev->mem);
967 return -ENODEV;
968 }
969
970 /*
971 * Ok we have a PMS of some sort
972 */
973
974 mvv_write(dev, 0x04, mem_base >> 12); /* Set the memory area */
975
976 /* Ok now load the defaults */
977
978 for (i = 0; i < 0x19; i++) {
979 if (i2c_defs[i] == 0xff)
980 pms_i2c_andor(dev, 0x8a, i, 0x07, 0x00);
981 else
982 pms_i2c_write(dev, 0x8a, i, i2c_defs[i]);
983 }
984
985 pms_i2c_write(dev, 0xb8, 0x00, 0x12);
986 pms_i2c_write(dev, 0xb8, 0x04, 0x00);
987 pms_i2c_write(dev, 0xb8, 0x07, 0x00);
988 pms_i2c_write(dev, 0xb8, 0x08, 0x00);
989 pms_i2c_write(dev, 0xb8, 0x09, 0xff);
990 pms_i2c_write(dev, 0xb8, 0x0a, 0x00);
991 pms_i2c_write(dev, 0xb8, 0x0b, 0x10);
992 pms_i2c_write(dev, 0xb8, 0x10, 0x03);
993
994 mvv_write(dev, 0x01, 0x00);
995 mvv_write(dev, 0x05, 0xa0);
996 mvv_write(dev, 0x08, 0x25);
997 mvv_write(dev, 0x09, 0x00);
998 mvv_write(dev, 0x0a, 0x20 | MVVMEMORYWIDTH);
999
1000 mvv_write(dev, 0x10, 0x02);
1001 mvv_write(dev, 0x1e, 0x0c);
1002 mvv_write(dev, 0x1f, 0x03);
1003 mvv_write(dev, 0x26, 0x06);
1004
1005 mvv_write(dev, 0x2b, 0x00);
1006 mvv_write(dev, 0x2c, 0x20);
1007 mvv_write(dev, 0x2d, 0x00);
1008 mvv_write(dev, 0x2f, 0x70);
1009 mvv_write(dev, 0x32, 0x00);
1010 mvv_write(dev, 0x33, MVVMEMORYWIDTH);
1011 mvv_write(dev, 0x34, 0x00);
1012 mvv_write(dev, 0x35, 0x00);
1013 mvv_write(dev, 0x3a, 0x80);
1014 mvv_write(dev, 0x3b, 0x10);
1015 mvv_write(dev, 0x20, 0x00);
1016 mvv_write(dev, 0x21, 0x00);
1017 mvv_write(dev, 0x30, 0x22);
1018 return 0;
1019 }
1020
1021 /*
1022 * Initialization and module stuff
1023 */
1024
1025 #ifndef MODULE
1026 static int enable;
1027 module_param(enable, int, 0);
1028 #endif
1029
1030 static const struct v4l2_ctrl_ops pms_ctrl_ops = {
1031 .s_ctrl = pms_s_ctrl,
1032 };
1033
1034 static int pms_probe(struct device *pdev, unsigned int card)
1035 {
1036 struct pms *dev;
1037 struct v4l2_device *v4l2_dev;
1038 struct v4l2_ctrl_handler *hdl;
1039 int res;
1040
1041 #ifndef MODULE
1042 if (!enable) {
1043 pr_err("PMS: not enabled, use pms.enable=1 to probe\n");
1044 return -ENODEV;
1045 }
1046 #endif
1047
1048 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
1049 if (dev == NULL)
1050 return -ENOMEM;
1051
1052 dev->decoder = PHILIPS2;
1053 dev->io = io_port;
1054 dev->data = io_port + 1;
1055 v4l2_dev = &dev->v4l2_dev;
1056 hdl = &dev->hdl;
1057
1058 res = v4l2_device_register(pdev, v4l2_dev);
1059 if (res < 0) {
1060 v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
1061 goto free_dev;
1062 }
1063 v4l2_info(v4l2_dev, "Mediavision Pro Movie Studio driver 0.05\n");
1064
1065 res = init_mediavision(dev);
1066 if (res) {
1067 v4l2_err(v4l2_dev, "Board not found.\n");
1068 goto free_io;
1069 }
1070
1071 v4l2_ctrl_handler_init(hdl, 4);
1072 v4l2_ctrl_new_std(hdl, &pms_ctrl_ops,
1073 V4L2_CID_BRIGHTNESS, 0, 255, 1, 139);
1074 v4l2_ctrl_new_std(hdl, &pms_ctrl_ops,
1075 V4L2_CID_CONTRAST, 0, 255, 1, 70);
1076 v4l2_ctrl_new_std(hdl, &pms_ctrl_ops,
1077 V4L2_CID_SATURATION, 0, 255, 1, 64);
1078 v4l2_ctrl_new_std(hdl, &pms_ctrl_ops,
1079 V4L2_CID_HUE, 0, 255, 1, 0);
1080 if (hdl->error) {
1081 res = hdl->error;
1082 goto free_hdl;
1083 }
1084
1085 mutex_init(&dev->lock);
1086 strlcpy(dev->vdev.name, v4l2_dev->name, sizeof(dev->vdev.name));
1087 dev->vdev.v4l2_dev = v4l2_dev;
1088 dev->vdev.ctrl_handler = hdl;
1089 dev->vdev.fops = &pms_fops;
1090 dev->vdev.ioctl_ops = &pms_ioctl_ops;
1091 dev->vdev.release = video_device_release_empty;
1092 dev->vdev.lock = &dev->lock;
1093 dev->vdev.tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM;
1094 set_bit(V4L2_FL_USE_FH_PRIO, &dev->vdev.flags);
1095 video_set_drvdata(&dev->vdev, dev);
1096 dev->std = V4L2_STD_NTSC_M;
1097 dev->height = 240;
1098 dev->width = 320;
1099 dev->depth = 16;
1100 pms_swsense(dev, 75);
1101 pms_resolution(dev, 320, 240);
1102 pms_videosource(dev, 0);
1103 pms_vcrinput(dev, 0);
1104 v4l2_ctrl_handler_setup(hdl);
1105 res = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, video_nr);
1106 if (res >= 0)
1107 return 0;
1108
1109 free_hdl:
1110 v4l2_ctrl_handler_free(hdl);
1111 v4l2_device_unregister(&dev->v4l2_dev);
1112 free_io:
1113 release_region(dev->io, 3);
1114 release_region(0x9a01, 1);
1115 iounmap(dev->mem);
1116 free_dev:
1117 kfree(dev);
1118 return res;
1119 }
1120
1121 static int pms_remove(struct device *pdev, unsigned int card)
1122 {
1123 struct pms *dev = dev_get_drvdata(pdev);
1124
1125 video_unregister_device(&dev->vdev);
1126 v4l2_ctrl_handler_free(&dev->hdl);
1127 release_region(dev->io, 3);
1128 release_region(0x9a01, 1);
1129 iounmap(dev->mem);
1130 return 0;
1131 }
1132
1133 static struct isa_driver pms_driver = {
1134 .probe = pms_probe,
1135 .remove = pms_remove,
1136 .driver = {
1137 .name = "pms",
1138 },
1139 };
1140
1141 static int __init pms_init(void)
1142 {
1143 return isa_register_driver(&pms_driver, 1);
1144 }
1145
1146 static void __exit pms_exit(void)
1147 {
1148 isa_unregister_driver(&pms_driver);
1149 }
1150
1151 module_init(pms_init);
1152 module_exit(pms_exit);
Linux kernel - Deliverables
This page took 0.085139 seconds and 5 git commands to generate.