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Merge branches 'timers-core-for-linus' and 'timers-urgent-for-linus' of git://git...
[linux/fpc-iii.git] / drivers / media / usb / cx231xx / cx231xx-video.c
blobd0d8f08e37c8706baf94552ed85a6149491e080a
1 /*
2 cx231xx-video.c - driver for Conexant Cx23100/101/102
3 USB video capture devices
4
5 Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
6 Based on em28xx driver
7 Based on cx23885 driver
8 Based on cx88 driver
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 */
24
25 #include "cx231xx.h"
26 #include <linux/init.h>
27 #include <linux/list.h>
28 #include <linux/module.h>
29 #include <linux/kernel.h>
30 #include <linux/bitmap.h>
31 #include <linux/i2c.h>
32 #include <linux/mm.h>
33 #include <linux/mutex.h>
34 #include <linux/slab.h>
35
36 #include <media/v4l2-common.h>
37 #include <media/v4l2-ioctl.h>
38 #include <media/v4l2-event.h>
39 #include <media/msp3400.h>
40 #include <media/tuner.h>
41
42 #include "dvb_frontend.h"
43
44 #include "cx231xx-vbi.h"
45
46 #define CX231XX_VERSION "0.0.3"
47
48 #define DRIVER_AUTHOR "Srinivasa Deevi <srinivasa.deevi@conexant.com>"
49 #define DRIVER_DESC "Conexant cx231xx based USB video device driver"
50
51 #define cx231xx_videodbg(fmt, arg...) do {\
52 if (video_debug) \
53 printk(KERN_INFO "%s %s :"fmt, \
54 dev->name, __func__ , ##arg); } while (0)
55
56 static unsigned int isoc_debug;
57 module_param(isoc_debug, int, 0644);
58 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
59
60 #define cx231xx_isocdbg(fmt, arg...) \
61 do {\
62 if (isoc_debug) { \
63 printk(KERN_INFO "%s %s :"fmt, \
64 dev->name, __func__ , ##arg); \
65 } \
66 } while (0)
67
68 MODULE_AUTHOR(DRIVER_AUTHOR);
69 MODULE_DESCRIPTION(DRIVER_DESC);
70 MODULE_LICENSE("GPL");
71 MODULE_VERSION(CX231XX_VERSION);
72
73 static unsigned int card[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
74 static unsigned int video_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
75 static unsigned int vbi_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
76 static unsigned int radio_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
77
78 module_param_array(card, int, NULL, 0444);
79 module_param_array(video_nr, int, NULL, 0444);
80 module_param_array(vbi_nr, int, NULL, 0444);
81 module_param_array(radio_nr, int, NULL, 0444);
82
83 MODULE_PARM_DESC(card, "card type");
84 MODULE_PARM_DESC(video_nr, "video device numbers");
85 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
86 MODULE_PARM_DESC(radio_nr, "radio device numbers");
87
88 static unsigned int video_debug;
89 module_param(video_debug, int, 0644);
90 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
91
92 /* supported video standards */
93 static struct cx231xx_fmt format[] = {
94 {
95 .name = "16bpp YUY2, 4:2:2, packed",
96 .fourcc = V4L2_PIX_FMT_YUYV,
97 .depth = 16,
98 .reg = 0,
99 },
100 };
101
102
103 static int cx231xx_enable_analog_tuner(struct cx231xx *dev)
104 {
105 #ifdef CONFIG_MEDIA_CONTROLLER
106 struct media_device *mdev = dev->media_dev;
107 struct media_entity *entity, *decoder = NULL, *source;
108 struct media_link *link, *found_link = NULL;
109 int i, ret, active_links = 0;
110
111 if (!mdev)
112 return 0;
113
114 /*
115 * This will find the tuner that is connected into the decoder.
116 * Technically, this is not 100% correct, as the device may be
117 * using an analog input instead of the tuner. However, as we can't
118 * do DVB streaming while the DMA engine is being used for V4L2,
119 * this should be enough for the actual needs.
120 */
121 media_device_for_each_entity(entity, mdev) {
122 if (entity->type == MEDIA_ENT_T_V4L2_SUBDEV_DECODER) {
123 decoder = entity;
124 break;
125 }
126 }
127 if (!decoder)
128 return 0;
129
130 for (i = 0; i < decoder->num_links; i++) {
131 link = &decoder->links[i];
132 if (link->sink->entity == decoder) {
133 found_link = link;
134 if (link->flags & MEDIA_LNK_FL_ENABLED)
135 active_links++;
136 break;
137 }
138 }
139
140 if (active_links == 1 || !found_link)
141 return 0;
142
143 source = found_link->source->entity;
144 for (i = 0; i < source->num_links; i++) {
145 struct media_entity *sink;
146 int flags = 0;
147
148 link = &source->links[i];
149 sink = link->sink->entity;
150
151 if (sink == entity)
152 flags = MEDIA_LNK_FL_ENABLED;
153
154 ret = media_entity_setup_link(link, flags);
155 if (ret) {
156 dev_err(dev->dev,
157 "Couldn't change link %s->%s to %s. Error %d\n",
158 source->name, sink->name,
159 flags ? "enabled" : "disabled",
160 ret);
161 return ret;
162 } else
163 dev_dbg(dev->dev,
164 "link %s->%s was %s\n",
165 source->name, sink->name,
166 flags ? "ENABLED" : "disabled");
167 }
168 #endif
169 return 0;
170 }
171
172 /* ------------------------------------------------------------------
173 Video buffer and parser functions
174 ------------------------------------------------------------------*/
175
176 /*
177 * Announces that a buffer were filled and request the next
178 */
179 static inline void buffer_filled(struct cx231xx *dev,
180 struct cx231xx_dmaqueue *dma_q,
181 struct cx231xx_buffer *buf)
182 {
183 /* Advice that buffer was filled */
184 cx231xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
185 buf->vb.state = VIDEOBUF_DONE;
186 buf->vb.field_count++;
187 v4l2_get_timestamp(&buf->vb.ts);
188
189 if (dev->USE_ISO)
190 dev->video_mode.isoc_ctl.buf = NULL;
191 else
192 dev->video_mode.bulk_ctl.buf = NULL;
193
194 list_del(&buf->vb.queue);
195 wake_up(&buf->vb.done);
196 }
197
198 static inline void print_err_status(struct cx231xx *dev, int packet, int status)
199 {
200 char *errmsg = "Unknown";
201
202 switch (status) {
203 case -ENOENT:
204 errmsg = "unlinked synchronuously";
205 break;
206 case -ECONNRESET:
207 errmsg = "unlinked asynchronuously";
208 break;
209 case -ENOSR:
210 errmsg = "Buffer error (overrun)";
211 break;
212 case -EPIPE:
213 errmsg = "Stalled (device not responding)";
214 break;
215 case -EOVERFLOW:
216 errmsg = "Babble (bad cable?)";
217 break;
218 case -EPROTO:
219 errmsg = "Bit-stuff error (bad cable?)";
220 break;
221 case -EILSEQ:
222 errmsg = "CRC/Timeout (could be anything)";
223 break;
224 case -ETIME:
225 errmsg = "Device does not respond";
226 break;
227 }
228 if (packet < 0) {
229 cx231xx_isocdbg("URB status %d [%s].\n", status, errmsg);
230 } else {
231 cx231xx_isocdbg("URB packet %d, status %d [%s].\n",
232 packet, status, errmsg);
233 }
234 }
235
236 /*
237 * video-buf generic routine to get the next available buffer
238 */
239 static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q,
240 struct cx231xx_buffer **buf)
241 {
242 struct cx231xx_video_mode *vmode =
243 container_of(dma_q, struct cx231xx_video_mode, vidq);
244 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
245
246 char *outp;
247
248 if (list_empty(&dma_q->active)) {
249 cx231xx_isocdbg("No active queue to serve\n");
250 if (dev->USE_ISO)
251 dev->video_mode.isoc_ctl.buf = NULL;
252 else
253 dev->video_mode.bulk_ctl.buf = NULL;
254 *buf = NULL;
255 return;
256 }
257
258 /* Get the next buffer */
259 *buf = list_entry(dma_q->active.next, struct cx231xx_buffer, vb.queue);
260
261 /* Cleans up buffer - Useful for testing for frame/URB loss */
262 outp = videobuf_to_vmalloc(&(*buf)->vb);
263 memset(outp, 0, (*buf)->vb.size);
264
265 if (dev->USE_ISO)
266 dev->video_mode.isoc_ctl.buf = *buf;
267 else
268 dev->video_mode.bulk_ctl.buf = *buf;
269
270 return;
271 }
272
273 /*
274 * Controls the isoc copy of each urb packet
275 */
276 static inline int cx231xx_isoc_copy(struct cx231xx *dev, struct urb *urb)
277 {
278 struct cx231xx_dmaqueue *dma_q = urb->context;
279 int i;
280 unsigned char *p_buffer;
281 u32 bytes_parsed = 0, buffer_size = 0;
282 u8 sav_eav = 0;
283
284 if (!dev)
285 return 0;
286
287 if (dev->state & DEV_DISCONNECTED)
288 return 0;
289
290 if (urb->status < 0) {
291 print_err_status(dev, -1, urb->status);
292 if (urb->status == -ENOENT)
293 return 0;
294 }
295
296 for (i = 0; i < urb->number_of_packets; i++) {
297 int status = urb->iso_frame_desc[i].status;
298
299 if (status < 0) {
300 print_err_status(dev, i, status);
301 if (urb->iso_frame_desc[i].status != -EPROTO)
302 continue;
303 }
304
305 if (urb->iso_frame_desc[i].actual_length <= 0) {
306 /* cx231xx_isocdbg("packet %d is empty",i); - spammy */
307 continue;
308 }
309 if (urb->iso_frame_desc[i].actual_length >
310 dev->video_mode.max_pkt_size) {
311 cx231xx_isocdbg("packet bigger than packet size");
312 continue;
313 }
314
315 /* get buffer pointer and length */
316 p_buffer = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
317 buffer_size = urb->iso_frame_desc[i].actual_length;
318 bytes_parsed = 0;
319
320 if (dma_q->is_partial_line) {
321 /* Handle the case of a partial line */
322 sav_eav = dma_q->last_sav;
323 } else {
324 /* Check for a SAV/EAV overlapping
325 the buffer boundary */
326 sav_eav =
327 cx231xx_find_boundary_SAV_EAV(p_buffer,
328 dma_q->partial_buf,
329 &bytes_parsed);
330 }
331
332 sav_eav &= 0xF0;
333 /* Get the first line if we have some portion of an SAV/EAV from
334 the last buffer or a partial line */
335 if (sav_eav) {
336 bytes_parsed += cx231xx_get_video_line(dev, dma_q,
337 sav_eav, /* SAV/EAV */
338 p_buffer + bytes_parsed, /* p_buffer */
339 buffer_size - bytes_parsed);/* buf size */
340 }
341
342 /* Now parse data that is completely in this buffer */
343 /* dma_q->is_partial_line = 0; */
344
345 while (bytes_parsed < buffer_size) {
346 u32 bytes_used = 0;
347
348 sav_eav = cx231xx_find_next_SAV_EAV(
349 p_buffer + bytes_parsed, /* p_buffer */
350 buffer_size - bytes_parsed, /* buf size */
351 &bytes_used);/* bytes used to get SAV/EAV */
352
353 bytes_parsed += bytes_used;
354
355 sav_eav &= 0xF0;
356 if (sav_eav && (bytes_parsed < buffer_size)) {
357 bytes_parsed += cx231xx_get_video_line(dev,
358 dma_q, sav_eav, /* SAV/EAV */
359 p_buffer + bytes_parsed,/* p_buffer */
360 buffer_size - bytes_parsed);/*buf size*/
361 }
362 }
363
364 /* Save the last four bytes of the buffer so we can check the
365 buffer boundary condition next time */
366 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
367 bytes_parsed = 0;
368
369 }
370 return 1;
371 }
372
373 static inline int cx231xx_bulk_copy(struct cx231xx *dev, struct urb *urb)
374 {
375 struct cx231xx_dmaqueue *dma_q = urb->context;
376 unsigned char *p_buffer;
377 u32 bytes_parsed = 0, buffer_size = 0;
378 u8 sav_eav = 0;
379
380 if (!dev)
381 return 0;
382
383 if (dev->state & DEV_DISCONNECTED)
384 return 0;
385
386 if (urb->status < 0) {
387 print_err_status(dev, -1, urb->status);
388 if (urb->status == -ENOENT)
389 return 0;
390 }
391
392 if (1) {
393
394 /* get buffer pointer and length */
395 p_buffer = urb->transfer_buffer;
396 buffer_size = urb->actual_length;
397 bytes_parsed = 0;
398
399 if (dma_q->is_partial_line) {
400 /* Handle the case of a partial line */
401 sav_eav = dma_q->last_sav;
402 } else {
403 /* Check for a SAV/EAV overlapping
404 the buffer boundary */
405 sav_eav =
406 cx231xx_find_boundary_SAV_EAV(p_buffer,
407 dma_q->partial_buf,
408 &bytes_parsed);
409 }
410
411 sav_eav &= 0xF0;
412 /* Get the first line if we have some portion of an SAV/EAV from
413 the last buffer or a partial line */
414 if (sav_eav) {
415 bytes_parsed += cx231xx_get_video_line(dev, dma_q,
416 sav_eav, /* SAV/EAV */
417 p_buffer + bytes_parsed, /* p_buffer */
418 buffer_size - bytes_parsed);/* buf size */
419 }
420
421 /* Now parse data that is completely in this buffer */
422 /* dma_q->is_partial_line = 0; */
423
424 while (bytes_parsed < buffer_size) {
425 u32 bytes_used = 0;
426
427 sav_eav = cx231xx_find_next_SAV_EAV(
428 p_buffer + bytes_parsed, /* p_buffer */
429 buffer_size - bytes_parsed, /* buf size */
430 &bytes_used);/* bytes used to get SAV/EAV */
431
432 bytes_parsed += bytes_used;
433
434 sav_eav &= 0xF0;
435 if (sav_eav && (bytes_parsed < buffer_size)) {
436 bytes_parsed += cx231xx_get_video_line(dev,
437 dma_q, sav_eav, /* SAV/EAV */
438 p_buffer + bytes_parsed,/* p_buffer */
439 buffer_size - bytes_parsed);/*buf size*/
440 }
441 }
442
443 /* Save the last four bytes of the buffer so we can check the
444 buffer boundary condition next time */
445 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
446 bytes_parsed = 0;
447
448 }
449 return 1;
450 }
451
452
453 u8 cx231xx_find_boundary_SAV_EAV(u8 *p_buffer, u8 *partial_buf,
454 u32 *p_bytes_used)
455 {
456 u32 bytes_used;
457 u8 boundary_bytes[8];
458 u8 sav_eav = 0;
459
460 *p_bytes_used = 0;
461
462 /* Create an array of the last 4 bytes of the last buffer and the first
463 4 bytes of the current buffer. */
464
465 memcpy(boundary_bytes, partial_buf, 4);
466 memcpy(boundary_bytes + 4, p_buffer, 4);
467
468 /* Check for the SAV/EAV in the boundary buffer */
469 sav_eav = cx231xx_find_next_SAV_EAV((u8 *)&boundary_bytes, 8,
470 &bytes_used);
471
472 if (sav_eav) {
473 /* found a boundary SAV/EAV. Updates the bytes used to reflect
474 only those used in the new buffer */
475 *p_bytes_used = bytes_used - 4;
476 }
477
478 return sav_eav;
479 }
480
481 u8 cx231xx_find_next_SAV_EAV(u8 *p_buffer, u32 buffer_size, u32 *p_bytes_used)
482 {
483 u32 i;
484 u8 sav_eav = 0;
485
486 /*
487 * Don't search if the buffer size is less than 4. It causes a page
488 * fault since buffer_size - 4 evaluates to a large number in that
489 * case.
490 */
491 if (buffer_size < 4) {
492 *p_bytes_used = buffer_size;
493 return 0;
494 }
495
496 for (i = 0; i < (buffer_size - 3); i++) {
497
498 if ((p_buffer[i] == 0xFF) &&
499 (p_buffer[i + 1] == 0x00) && (p_buffer[i + 2] == 0x00)) {
500
501 *p_bytes_used = i + 4;
502 sav_eav = p_buffer[i + 3];
503 return sav_eav;
504 }
505 }
506
507 *p_bytes_used = buffer_size;
508 return 0;
509 }
510
511 u32 cx231xx_get_video_line(struct cx231xx *dev,
512 struct cx231xx_dmaqueue *dma_q, u8 sav_eav,
513 u8 *p_buffer, u32 buffer_size)
514 {
515 u32 bytes_copied = 0;
516 int current_field = -1;
517
518 switch (sav_eav) {
519 case SAV_ACTIVE_VIDEO_FIELD1:
520 /* looking for skipped line which occurred in PAL 720x480 mode.
521 In this case, there will be no active data contained
522 between the SAV and EAV */
523 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
524 (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
525 ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
526 (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
527 (p_buffer[3] == EAV_VBLANK_FIELD1) ||
528 (p_buffer[3] == EAV_VBLANK_FIELD2)))
529 return bytes_copied;
530 current_field = 1;
531 break;
532
533 case SAV_ACTIVE_VIDEO_FIELD2:
534 /* looking for skipped line which occurred in PAL 720x480 mode.
535 In this case, there will be no active data contained between
536 the SAV and EAV */
537 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
538 (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
539 ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
540 (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
541 (p_buffer[3] == EAV_VBLANK_FIELD1) ||
542 (p_buffer[3] == EAV_VBLANK_FIELD2)))
543 return bytes_copied;
544 current_field = 2;
545 break;
546 }
547
548 dma_q->last_sav = sav_eav;
549
550 bytes_copied = cx231xx_copy_video_line(dev, dma_q, p_buffer,
551 buffer_size, current_field);
552
553 return bytes_copied;
554 }
555
556 u32 cx231xx_copy_video_line(struct cx231xx *dev,
557 struct cx231xx_dmaqueue *dma_q, u8 *p_line,
558 u32 length, int field_number)
559 {
560 u32 bytes_to_copy;
561 struct cx231xx_buffer *buf;
562 u32 _line_size = dev->width * 2;
563
564 if (dma_q->current_field != field_number)
565 cx231xx_reset_video_buffer(dev, dma_q);
566
567 /* get the buffer pointer */
568 if (dev->USE_ISO)
569 buf = dev->video_mode.isoc_ctl.buf;
570 else
571 buf = dev->video_mode.bulk_ctl.buf;
572
573 /* Remember the field number for next time */
574 dma_q->current_field = field_number;
575
576 bytes_to_copy = dma_q->bytes_left_in_line;
577 if (bytes_to_copy > length)
578 bytes_to_copy = length;
579
580 if (dma_q->lines_completed >= dma_q->lines_per_field) {
581 dma_q->bytes_left_in_line -= bytes_to_copy;
582 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ?
583 0 : 1;
584 return 0;
585 }
586
587 dma_q->is_partial_line = 1;
588
589 /* If we don't have a buffer, just return the number of bytes we would
590 have copied if we had a buffer. */
591 if (!buf) {
592 dma_q->bytes_left_in_line -= bytes_to_copy;
593 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0)
594 ? 0 : 1;
595 return bytes_to_copy;
596 }
597
598 /* copy the data to video buffer */
599 cx231xx_do_copy(dev, dma_q, p_line, bytes_to_copy);
600
601 dma_q->pos += bytes_to_copy;
602 dma_q->bytes_left_in_line -= bytes_to_copy;
603
604 if (dma_q->bytes_left_in_line == 0) {
605 dma_q->bytes_left_in_line = _line_size;
606 dma_q->lines_completed++;
607 dma_q->is_partial_line = 0;
608
609 if (cx231xx_is_buffer_done(dev, dma_q) && buf) {
610 buffer_filled(dev, dma_q, buf);
611
612 dma_q->pos = 0;
613 buf = NULL;
614 dma_q->lines_completed = 0;
615 }
616 }
617
618 return bytes_to_copy;
619 }
620
621 void cx231xx_reset_video_buffer(struct cx231xx *dev,
622 struct cx231xx_dmaqueue *dma_q)
623 {
624 struct cx231xx_buffer *buf;
625
626 /* handle the switch from field 1 to field 2 */
627 if (dma_q->current_field == 1) {
628 if (dma_q->lines_completed >= dma_q->lines_per_field)
629 dma_q->field1_done = 1;
630 else
631 dma_q->field1_done = 0;
632 }
633
634 if (dev->USE_ISO)
635 buf = dev->video_mode.isoc_ctl.buf;
636 else
637 buf = dev->video_mode.bulk_ctl.buf;
638
639 if (buf == NULL) {
640 /* first try to get the buffer */
641 get_next_buf(dma_q, &buf);
642
643 dma_q->pos = 0;
644 dma_q->field1_done = 0;
645 dma_q->current_field = -1;
646 }
647
648 /* reset the counters */
649 dma_q->bytes_left_in_line = dev->width << 1;
650 dma_q->lines_completed = 0;
651 }
652
653 int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
654 u8 *p_buffer, u32 bytes_to_copy)
655 {
656 u8 *p_out_buffer = NULL;
657 u32 current_line_bytes_copied = 0;
658 struct cx231xx_buffer *buf;
659 u32 _line_size = dev->width << 1;
660 void *startwrite;
661 int offset, lencopy;
662
663 if (dev->USE_ISO)
664 buf = dev->video_mode.isoc_ctl.buf;
665 else
666 buf = dev->video_mode.bulk_ctl.buf;
667
668 if (buf == NULL)
669 return -1;
670
671 p_out_buffer = videobuf_to_vmalloc(&buf->vb);
672
673 current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line;
674
675 /* Offset field 2 one line from the top of the buffer */
676 offset = (dma_q->current_field == 1) ? 0 : _line_size;
677
678 /* Offset for field 2 */
679 startwrite = p_out_buffer + offset;
680
681 /* lines already completed in the current field */
682 startwrite += (dma_q->lines_completed * _line_size * 2);
683
684 /* bytes already completed in the current line */
685 startwrite += current_line_bytes_copied;
686
687 lencopy = dma_q->bytes_left_in_line > bytes_to_copy ?
688 bytes_to_copy : dma_q->bytes_left_in_line;
689
690 if ((u8 *)(startwrite + lencopy) > (u8 *)(p_out_buffer + buf->vb.size))
691 return 0;
692
693 /* The below copies the UYVY data straight into video buffer */
694 cx231xx_swab((u16 *) p_buffer, (u16 *) startwrite, (u16) lencopy);
695
696 return 0;
697 }
698
699 void cx231xx_swab(u16 *from, u16 *to, u16 len)
700 {
701 u16 i;
702
703 if (len <= 0)
704 return;
705
706 for (i = 0; i < len / 2; i++)
707 to[i] = (from[i] << 8) | (from[i] >> 8);
708 }
709
710 u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q)
711 {
712 u8 buffer_complete = 0;
713
714 /* Dual field stream */
715 buffer_complete = ((dma_q->current_field == 2) &&
716 (dma_q->lines_completed >= dma_q->lines_per_field) &&
717 dma_q->field1_done);
718
719 return buffer_complete;
720 }
721
722 /* ------------------------------------------------------------------
723 Videobuf operations
724 ------------------------------------------------------------------*/
725
726 static int
727 buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
728 {
729 struct cx231xx_fh *fh = vq->priv_data;
730 struct cx231xx *dev = fh->dev;
731
732 *size = (fh->dev->width * fh->dev->height * dev->format->depth + 7)>>3;
733 if (0 == *count)
734 *count = CX231XX_DEF_BUF;
735
736 if (*count < CX231XX_MIN_BUF)
737 *count = CX231XX_MIN_BUF;
738
739
740 cx231xx_enable_analog_tuner(dev);
741
742 return 0;
743 }
744
745 /* This is called *without* dev->slock held; please keep it that way */
746 static void free_buffer(struct videobuf_queue *vq, struct cx231xx_buffer *buf)
747 {
748 struct cx231xx_fh *fh = vq->priv_data;
749 struct cx231xx *dev = fh->dev;
750 unsigned long flags = 0;
751
752 BUG_ON(in_interrupt());
753
754 /* We used to wait for the buffer to finish here, but this didn't work
755 because, as we were keeping the state as VIDEOBUF_QUEUED,
756 videobuf_queue_cancel marked it as finished for us.
757 (Also, it could wedge forever if the hardware was misconfigured.)
758
759 This should be safe; by the time we get here, the buffer isn't
760 queued anymore. If we ever start marking the buffers as
761 VIDEOBUF_ACTIVE, it won't be, though.
762 */
763 spin_lock_irqsave(&dev->video_mode.slock, flags);
764 if (dev->USE_ISO) {
765 if (dev->video_mode.isoc_ctl.buf == buf)
766 dev->video_mode.isoc_ctl.buf = NULL;
767 } else {
768 if (dev->video_mode.bulk_ctl.buf == buf)
769 dev->video_mode.bulk_ctl.buf = NULL;
770 }
771 spin_unlock_irqrestore(&dev->video_mode.slock, flags);
772
773 videobuf_vmalloc_free(&buf->vb);
774 buf->vb.state = VIDEOBUF_NEEDS_INIT;
775 }
776
777 static int
778 buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
779 enum v4l2_field field)
780 {
781 struct cx231xx_fh *fh = vq->priv_data;
782 struct cx231xx_buffer *buf =
783 container_of(vb, struct cx231xx_buffer, vb);
784 struct cx231xx *dev = fh->dev;
785 int rc = 0, urb_init = 0;
786
787 /* The only currently supported format is 16 bits/pixel */
788 buf->vb.size = (fh->dev->width * fh->dev->height * dev->format->depth
789 + 7) >> 3;
790 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
791 return -EINVAL;
792
793 buf->vb.width = dev->width;
794 buf->vb.height = dev->height;
795 buf->vb.field = field;
796
797 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
798 rc = videobuf_iolock(vq, &buf->vb, NULL);
799 if (rc < 0)
800 goto fail;
801 }
802
803 if (dev->USE_ISO) {
804 if (!dev->video_mode.isoc_ctl.num_bufs)
805 urb_init = 1;
806 } else {
807 if (!dev->video_mode.bulk_ctl.num_bufs)
808 urb_init = 1;
809 }
810 dev_dbg(dev->dev,
811 "urb_init=%d dev->video_mode.max_pkt_size=%d\n",
812 urb_init, dev->video_mode.max_pkt_size);
813 if (urb_init) {
814 dev->mode_tv = 0;
815 if (dev->USE_ISO)
816 rc = cx231xx_init_isoc(dev, CX231XX_NUM_PACKETS,
817 CX231XX_NUM_BUFS,
818 dev->video_mode.max_pkt_size,
819 cx231xx_isoc_copy);
820 else
821 rc = cx231xx_init_bulk(dev, CX231XX_NUM_PACKETS,
822 CX231XX_NUM_BUFS,
823 dev->video_mode.max_pkt_size,
824 cx231xx_bulk_copy);
825 if (rc < 0)
826 goto fail;
827 }
828
829 buf->vb.state = VIDEOBUF_PREPARED;
830
831 return 0;
832
833 fail:
834 free_buffer(vq, buf);
835 return rc;
836 }
837
838 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
839 {
840 struct cx231xx_buffer *buf =
841 container_of(vb, struct cx231xx_buffer, vb);
842 struct cx231xx_fh *fh = vq->priv_data;
843 struct cx231xx *dev = fh->dev;
844 struct cx231xx_dmaqueue *vidq = &dev->video_mode.vidq;
845
846 buf->vb.state = VIDEOBUF_QUEUED;
847 list_add_tail(&buf->vb.queue, &vidq->active);
848
849 }
850
851 static void buffer_release(struct videobuf_queue *vq,
852 struct videobuf_buffer *vb)
853 {
854 struct cx231xx_buffer *buf =
855 container_of(vb, struct cx231xx_buffer, vb);
856 struct cx231xx_fh *fh = vq->priv_data;
857 struct cx231xx *dev = (struct cx231xx *)fh->dev;
858
859 cx231xx_isocdbg("cx231xx: called buffer_release\n");
860
861 free_buffer(vq, buf);
862 }
863
864 static struct videobuf_queue_ops cx231xx_video_qops = {
865 .buf_setup = buffer_setup,
866 .buf_prepare = buffer_prepare,
867 .buf_queue = buffer_queue,
868 .buf_release = buffer_release,
869 };
870
871 /********************* v4l2 interface **************************************/
872
873 void video_mux(struct cx231xx *dev, int index)
874 {
875 dev->video_input = index;
876 dev->ctl_ainput = INPUT(index)->amux;
877
878 cx231xx_set_video_input_mux(dev, index);
879
880 cx25840_call(dev, video, s_routing, INPUT(index)->vmux, 0, 0);
881
882 cx231xx_set_audio_input(dev, dev->ctl_ainput);
883
884 dev_dbg(dev->dev, "video_mux : %d\n", index);
885
886 /* do mode control overrides if required */
887 cx231xx_do_mode_ctrl_overrides(dev);
888 }
889
890 /* Usage lock check functions */
891 static int res_get(struct cx231xx_fh *fh)
892 {
893 struct cx231xx *dev = fh->dev;
894 int rc = 0;
895
896 /* This instance already has stream_on */
897 if (fh->stream_on)
898 return rc;
899
900 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
901 if (dev->stream_on)
902 return -EBUSY;
903 dev->stream_on = 1;
904 } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
905 if (dev->vbi_stream_on)
906 return -EBUSY;
907 dev->vbi_stream_on = 1;
908 } else
909 return -EINVAL;
910
911 fh->stream_on = 1;
912
913 return rc;
914 }
915
916 static int res_check(struct cx231xx_fh *fh)
917 {
918 return fh->stream_on;
919 }
920
921 static void res_free(struct cx231xx_fh *fh)
922 {
923 struct cx231xx *dev = fh->dev;
924
925 fh->stream_on = 0;
926
927 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
928 dev->stream_on = 0;
929 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
930 dev->vbi_stream_on = 0;
931 }
932
933 static int check_dev(struct cx231xx *dev)
934 {
935 if (dev->state & DEV_DISCONNECTED) {
936 dev_err(dev->dev, "v4l2 ioctl: device not present\n");
937 return -ENODEV;
938 }
939 return 0;
940 }
941
942 /* ------------------------------------------------------------------
943 IOCTL vidioc handling
944 ------------------------------------------------------------------*/
945
946 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
947 struct v4l2_format *f)
948 {
949 struct cx231xx_fh *fh = priv;
950 struct cx231xx *dev = fh->dev;
951
952 f->fmt.pix.width = dev->width;
953 f->fmt.pix.height = dev->height;
954 f->fmt.pix.pixelformat = dev->format->fourcc;
955 f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3;
956 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height;
957 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
958
959 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
960
961 return 0;
962 }
963
964 static struct cx231xx_fmt *format_by_fourcc(unsigned int fourcc)
965 {
966 unsigned int i;
967
968 for (i = 0; i < ARRAY_SIZE(format); i++)
969 if (format[i].fourcc == fourcc)
970 return &format[i];
971
972 return NULL;
973 }
974
975 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
976 struct v4l2_format *f)
977 {
978 struct cx231xx_fh *fh = priv;
979 struct cx231xx *dev = fh->dev;
980 unsigned int width = f->fmt.pix.width;
981 unsigned int height = f->fmt.pix.height;
982 unsigned int maxw = norm_maxw(dev);
983 unsigned int maxh = norm_maxh(dev);
984 struct cx231xx_fmt *fmt;
985
986 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
987 if (!fmt) {
988 cx231xx_videodbg("Fourcc format (%08x) invalid.\n",
989 f->fmt.pix.pixelformat);
990 return -EINVAL;
991 }
992
993 /* width must even because of the YUYV format
994 height must be even because of interlacing */
995 v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh, 1, 0);
996
997 f->fmt.pix.width = width;
998 f->fmt.pix.height = height;
999 f->fmt.pix.pixelformat = fmt->fourcc;
1000 f->fmt.pix.bytesperline = (width * fmt->depth + 7) >> 3;
1001 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height;
1002 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1003 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1004
1005 return 0;
1006 }
1007
1008 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1009 struct v4l2_format *f)
1010 {
1011 struct cx231xx_fh *fh = priv;
1012 struct cx231xx *dev = fh->dev;
1013 int rc;
1014 struct cx231xx_fmt *fmt;
1015 struct v4l2_subdev_format format = {
1016 .which = V4L2_SUBDEV_FORMAT_ACTIVE,
1017 };
1018
1019 rc = check_dev(dev);
1020 if (rc < 0)
1021 return rc;
1022
1023 vidioc_try_fmt_vid_cap(file, priv, f);
1024
1025 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1026 if (!fmt)
1027 return -EINVAL;
1028
1029 if (videobuf_queue_is_busy(&fh->vb_vidq)) {
1030 dev_err(dev->dev, "%s: queue busy\n", __func__);
1031 return -EBUSY;
1032 }
1033
1034 if (dev->stream_on && !fh->stream_on) {
1035 dev_err(dev->dev,
1036 "%s: device in use by another fh\n", __func__);
1037 return -EBUSY;
1038 }
1039
1040 /* set new image size */
1041 dev->width = f->fmt.pix.width;
1042 dev->height = f->fmt.pix.height;
1043 dev->format = fmt;
1044
1045 v4l2_fill_mbus_format(&format.format, &f->fmt.pix, MEDIA_BUS_FMT_FIXED);
1046 call_all(dev, pad, set_fmt, NULL, &format);
1047 v4l2_fill_pix_format(&f->fmt.pix, &format.format);
1048
1049 return rc;
1050 }
1051
1052 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
1053 {
1054 struct cx231xx_fh *fh = priv;
1055 struct cx231xx *dev = fh->dev;
1056
1057 *id = dev->norm;
1058 return 0;
1059 }
1060
1061 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
1062 {
1063 struct cx231xx_fh *fh = priv;
1064 struct cx231xx *dev = fh->dev;
1065 struct v4l2_subdev_format format = {
1066 .which = V4L2_SUBDEV_FORMAT_ACTIVE,
1067 };
1068 int rc;
1069
1070 rc = check_dev(dev);
1071 if (rc < 0)
1072 return rc;
1073
1074 if (dev->norm == norm)
1075 return 0;
1076
1077 if (videobuf_queue_is_busy(&fh->vb_vidq))
1078 return -EBUSY;
1079
1080 dev->norm = norm;
1081
1082 /* Adjusts width/height, if needed */
1083 dev->width = 720;
1084 dev->height = (dev->norm & V4L2_STD_625_50) ? 576 : 480;
1085
1086 call_all(dev, video, s_std, dev->norm);
1087
1088 /* We need to reset basic properties in the decoder related to
1089 resolution (since a standard change effects things like the number
1090 of lines in VACT, etc) */
1091 format.format.code = MEDIA_BUS_FMT_FIXED;
1092 format.format.width = dev->width;
1093 format.format.height = dev->height;
1094 call_all(dev, pad, set_fmt, NULL, &format);
1095
1096 /* do mode control overrides */
1097 cx231xx_do_mode_ctrl_overrides(dev);
1098
1099 return 0;
1100 }
1101
1102 static const char *iname[] = {
1103 [CX231XX_VMUX_COMPOSITE1] = "Composite1",
1104 [CX231XX_VMUX_SVIDEO] = "S-Video",
1105 [CX231XX_VMUX_TELEVISION] = "Television",
1106 [CX231XX_VMUX_CABLE] = "Cable TV",
1107 [CX231XX_VMUX_DVB] = "DVB",
1108 [CX231XX_VMUX_DEBUG] = "for debug only",
1109 };
1110
1111 int cx231xx_enum_input(struct file *file, void *priv,
1112 struct v4l2_input *i)
1113 {
1114 struct cx231xx_fh *fh = priv;
1115 struct cx231xx *dev = fh->dev;
1116 u32 gen_stat;
1117 unsigned int n;
1118 int ret;
1119
1120 n = i->index;
1121 if (n >= MAX_CX231XX_INPUT)
1122 return -EINVAL;
1123 if (0 == INPUT(n)->type)
1124 return -EINVAL;
1125
1126 i->index = n;
1127 i->type = V4L2_INPUT_TYPE_CAMERA;
1128
1129 strcpy(i->name, iname[INPUT(n)->type]);
1130
1131 if ((CX231XX_VMUX_TELEVISION == INPUT(n)->type) ||
1132 (CX231XX_VMUX_CABLE == INPUT(n)->type))
1133 i->type = V4L2_INPUT_TYPE_TUNER;
1134
1135 i->std = dev->vdev.tvnorms;
1136
1137 /* If they are asking about the active input, read signal status */
1138 if (n == dev->video_input) {
1139 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1140 GEN_STAT, 2, &gen_stat, 4);
1141 if (ret > 0) {
1142 if ((gen_stat & FLD_VPRES) == 0x00)
1143 i->status |= V4L2_IN_ST_NO_SIGNAL;
1144 if ((gen_stat & FLD_HLOCK) == 0x00)
1145 i->status |= V4L2_IN_ST_NO_H_LOCK;
1146 }
1147 }
1148
1149 return 0;
1150 }
1151
1152 int cx231xx_g_input(struct file *file, void *priv, unsigned int *i)
1153 {
1154 struct cx231xx_fh *fh = priv;
1155 struct cx231xx *dev = fh->dev;
1156
1157 *i = dev->video_input;
1158
1159 return 0;
1160 }
1161
1162 int cx231xx_s_input(struct file *file, void *priv, unsigned int i)
1163 {
1164 struct cx231xx_fh *fh = priv;
1165 struct cx231xx *dev = fh->dev;
1166 int rc;
1167
1168 dev->mode_tv = 0;
1169 rc = check_dev(dev);
1170 if (rc < 0)
1171 return rc;
1172
1173 if (i >= MAX_CX231XX_INPUT)
1174 return -EINVAL;
1175 if (0 == INPUT(i)->type)
1176 return -EINVAL;
1177
1178 video_mux(dev, i);
1179
1180 if (INPUT(i)->type == CX231XX_VMUX_TELEVISION ||
1181 INPUT(i)->type == CX231XX_VMUX_CABLE) {
1182 /* There's a tuner, so reset the standard and put it on the
1183 last known frequency (since it was probably powered down
1184 until now */
1185 call_all(dev, video, s_std, dev->norm);
1186 }
1187
1188 return 0;
1189 }
1190
1191 int cx231xx_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1192 {
1193 struct cx231xx_fh *fh = priv;
1194 struct cx231xx *dev = fh->dev;
1195 int rc;
1196
1197 rc = check_dev(dev);
1198 if (rc < 0)
1199 return rc;
1200
1201 if (0 != t->index)
1202 return -EINVAL;
1203
1204 strcpy(t->name, "Tuner");
1205
1206 t->type = V4L2_TUNER_ANALOG_TV;
1207 t->capability = V4L2_TUNER_CAP_NORM;
1208 t->rangehigh = 0xffffffffUL;
1209 t->signal = 0xffff; /* LOCKED */
1210 call_all(dev, tuner, g_tuner, t);
1211
1212 return 0;
1213 }
1214
1215 int cx231xx_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t)
1216 {
1217 struct cx231xx_fh *fh = priv;
1218 struct cx231xx *dev = fh->dev;
1219 int rc;
1220
1221 rc = check_dev(dev);
1222 if (rc < 0)
1223 return rc;
1224
1225 if (0 != t->index)
1226 return -EINVAL;
1227 #if 0
1228 call_all(dev, tuner, s_tuner, t);
1229 #endif
1230 return 0;
1231 }
1232
1233 int cx231xx_g_frequency(struct file *file, void *priv,
1234 struct v4l2_frequency *f)
1235 {
1236 struct cx231xx_fh *fh = priv;
1237 struct cx231xx *dev = fh->dev;
1238
1239 if (f->tuner)
1240 return -EINVAL;
1241
1242 f->frequency = dev->ctl_freq;
1243
1244 return 0;
1245 }
1246
1247 int cx231xx_s_frequency(struct file *file, void *priv,
1248 const struct v4l2_frequency *f)
1249 {
1250 struct cx231xx_fh *fh = priv;
1251 struct cx231xx *dev = fh->dev;
1252 struct v4l2_frequency new_freq = *f;
1253 int rc;
1254 u32 if_frequency = 5400000;
1255
1256 dev_dbg(dev->dev,
1257 "Enter vidioc_s_frequency()f->frequency=%d;f->type=%d\n",
1258 f->frequency, f->type);
1259
1260 rc = check_dev(dev);
1261 if (rc < 0)
1262 return rc;
1263
1264 if (0 != f->tuner)
1265 return -EINVAL;
1266
1267 /* set pre channel change settings in DIF first */
1268 rc = cx231xx_tuner_pre_channel_change(dev);
1269
1270 call_all(dev, tuner, s_frequency, f);
1271 call_all(dev, tuner, g_frequency, &new_freq);
1272 dev->ctl_freq = new_freq.frequency;
1273
1274 /* set post channel change settings in DIF first */
1275 rc = cx231xx_tuner_post_channel_change(dev);
1276
1277 if (dev->tuner_type == TUNER_NXP_TDA18271) {
1278 if (dev->norm & (V4L2_STD_MN | V4L2_STD_NTSC_443))
1279 if_frequency = 5400000; /*5.4MHz */
1280 else if (dev->norm & V4L2_STD_B)
1281 if_frequency = 6000000; /*6.0MHz */
1282 else if (dev->norm & (V4L2_STD_PAL_DK | V4L2_STD_SECAM_DK))
1283 if_frequency = 6900000; /*6.9MHz */
1284 else if (dev->norm & V4L2_STD_GH)
1285 if_frequency = 7100000; /*7.1MHz */
1286 else if (dev->norm & V4L2_STD_PAL_I)
1287 if_frequency = 7250000; /*7.25MHz */
1288 else if (dev->norm & V4L2_STD_SECAM_L)
1289 if_frequency = 6900000; /*6.9MHz */
1290 else if (dev->norm & V4L2_STD_SECAM_LC)
1291 if_frequency = 1250000; /*1.25MHz */
1292
1293 dev_dbg(dev->dev,
1294 "if_frequency is set to %d\n", if_frequency);
1295 cx231xx_set_Colibri_For_LowIF(dev, if_frequency, 1, 1);
1296
1297 update_HH_register_after_set_DIF(dev);
1298 }
1299
1300 dev_dbg(dev->dev, "Set New FREQUENCY to %d\n", f->frequency);
1301
1302 return rc;
1303 }
1304
1305 #ifdef CONFIG_VIDEO_ADV_DEBUG
1306
1307 int cx231xx_g_chip_info(struct file *file, void *fh,
1308 struct v4l2_dbg_chip_info *chip)
1309 {
1310 switch (chip->match.addr) {
1311 case 0: /* Cx231xx - internal registers */
1312 return 0;
1313 case 1: /* AFE - read byte */
1314 strlcpy(chip->name, "AFE (byte)", sizeof(chip->name));
1315 return 0;
1316 case 2: /* Video Block - read byte */
1317 strlcpy(chip->name, "Video (byte)", sizeof(chip->name));
1318 return 0;
1319 case 3: /* I2S block - read byte */
1320 strlcpy(chip->name, "I2S (byte)", sizeof(chip->name));
1321 return 0;
1322 case 4: /* AFE - read dword */
1323 strlcpy(chip->name, "AFE (dword)", sizeof(chip->name));
1324 return 0;
1325 case 5: /* Video Block - read dword */
1326 strlcpy(chip->name, "Video (dword)", sizeof(chip->name));
1327 return 0;
1328 case 6: /* I2S Block - read dword */
1329 strlcpy(chip->name, "I2S (dword)", sizeof(chip->name));
1330 return 0;
1331 }
1332 return -EINVAL;
1333 }
1334
1335 int cx231xx_g_register(struct file *file, void *priv,
1336 struct v4l2_dbg_register *reg)
1337 {
1338 struct cx231xx_fh *fh = priv;
1339 struct cx231xx *dev = fh->dev;
1340 int ret;
1341 u8 value[4] = { 0, 0, 0, 0 };
1342 u32 data = 0;
1343
1344 switch (reg->match.addr) {
1345 case 0: /* Cx231xx - internal registers */
1346 ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
1347 (u16)reg->reg, value, 4);
1348 reg->val = value[0] | value[1] << 8 |
1349 value[2] << 16 | value[3] << 24;
1350 reg->size = 4;
1351 break;
1352 case 1: /* AFE - read byte */
1353 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1354 (u16)reg->reg, 2, &data, 1);
1355 reg->val = data;
1356 reg->size = 1;
1357 break;
1358 case 2: /* Video Block - read byte */
1359 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1360 (u16)reg->reg, 2, &data, 1);
1361 reg->val = data;
1362 reg->size = 1;
1363 break;
1364 case 3: /* I2S block - read byte */
1365 ret = cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1366 (u16)reg->reg, 1, &data, 1);
1367 reg->val = data;
1368 reg->size = 1;
1369 break;
1370 case 4: /* AFE - read dword */
1371 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1372 (u16)reg->reg, 2, &data, 4);
1373 reg->val = data;
1374 reg->size = 4;
1375 break;
1376 case 5: /* Video Block - read dword */
1377 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1378 (u16)reg->reg, 2, &data, 4);
1379 reg->val = data;
1380 reg->size = 4;
1381 break;
1382 case 6: /* I2S Block - read dword */
1383 ret = cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1384 (u16)reg->reg, 1, &data, 4);
1385 reg->val = data;
1386 reg->size = 4;
1387 break;
1388 default:
1389 return -EINVAL;
1390 }
1391 return ret < 0 ? ret : 0;
1392 }
1393
1394 int cx231xx_s_register(struct file *file, void *priv,
1395 const struct v4l2_dbg_register *reg)
1396 {
1397 struct cx231xx_fh *fh = priv;
1398 struct cx231xx *dev = fh->dev;
1399 int ret;
1400 u8 data[4] = { 0, 0, 0, 0 };
1401
1402 switch (reg->match.addr) {
1403 case 0: /* cx231xx internal registers */
1404 data[0] = (u8) reg->val;
1405 data[1] = (u8) (reg->val >> 8);
1406 data[2] = (u8) (reg->val >> 16);
1407 data[3] = (u8) (reg->val >> 24);
1408 ret = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1409 (u16)reg->reg, data, 4);
1410 break;
1411 case 1: /* AFE - write byte */
1412 ret = cx231xx_write_i2c_data(dev, AFE_DEVICE_ADDRESS,
1413 (u16)reg->reg, 2, reg->val, 1);
1414 break;
1415 case 2: /* Video Block - write byte */
1416 ret = cx231xx_write_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1417 (u16)reg->reg, 2, reg->val, 1);
1418 break;
1419 case 3: /* I2S block - write byte */
1420 ret = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1421 (u16)reg->reg, 1, reg->val, 1);
1422 break;
1423 case 4: /* AFE - write dword */
1424 ret = cx231xx_write_i2c_data(dev, AFE_DEVICE_ADDRESS,
1425 (u16)reg->reg, 2, reg->val, 4);
1426 break;
1427 case 5: /* Video Block - write dword */
1428 ret = cx231xx_write_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1429 (u16)reg->reg, 2, reg->val, 4);
1430 break;
1431 case 6: /* I2S block - write dword */
1432 ret = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1433 (u16)reg->reg, 1, reg->val, 4);
1434 break;
1435 default:
1436 return -EINVAL;
1437 }
1438 return ret < 0 ? ret : 0;
1439 }
1440 #endif
1441
1442 static int vidioc_cropcap(struct file *file, void *priv,
1443 struct v4l2_cropcap *cc)
1444 {
1445 struct cx231xx_fh *fh = priv;
1446 struct cx231xx *dev = fh->dev;
1447
1448 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1449 return -EINVAL;
1450
1451 cc->bounds.left = 0;
1452 cc->bounds.top = 0;
1453 cc->bounds.width = dev->width;
1454 cc->bounds.height = dev->height;
1455 cc->defrect = cc->bounds;
1456 cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */
1457 cc->pixelaspect.denominator = 59;
1458
1459 return 0;
1460 }
1461
1462 static int vidioc_streamon(struct file *file, void *priv,
1463 enum v4l2_buf_type type)
1464 {
1465 struct cx231xx_fh *fh = priv;
1466 struct cx231xx *dev = fh->dev;
1467 int rc;
1468
1469 rc = check_dev(dev);
1470 if (rc < 0)
1471 return rc;
1472
1473 rc = res_get(fh);
1474
1475 if (likely(rc >= 0))
1476 rc = videobuf_streamon(&fh->vb_vidq);
1477
1478 call_all(dev, video, s_stream, 1);
1479
1480 return rc;
1481 }
1482
1483 static int vidioc_streamoff(struct file *file, void *priv,
1484 enum v4l2_buf_type type)
1485 {
1486 struct cx231xx_fh *fh = priv;
1487 struct cx231xx *dev = fh->dev;
1488 int rc;
1489
1490 rc = check_dev(dev);
1491 if (rc < 0)
1492 return rc;
1493
1494 if (type != fh->type)
1495 return -EINVAL;
1496
1497 cx25840_call(dev, video, s_stream, 0);
1498
1499 videobuf_streamoff(&fh->vb_vidq);
1500 res_free(fh);
1501
1502 return 0;
1503 }
1504
1505 int cx231xx_querycap(struct file *file, void *priv,
1506 struct v4l2_capability *cap)
1507 {
1508 struct video_device *vdev = video_devdata(file);
1509 struct cx231xx_fh *fh = priv;
1510 struct cx231xx *dev = fh->dev;
1511
1512 strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
1513 strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
1514 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
1515
1516 if (vdev->vfl_type == VFL_TYPE_RADIO)
1517 cap->device_caps = V4L2_CAP_RADIO;
1518 else {
1519 cap->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
1520 if (vdev->vfl_type == VFL_TYPE_VBI)
1521 cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
1522 else
1523 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
1524 }
1525 if (dev->tuner_type != TUNER_ABSENT)
1526 cap->device_caps |= V4L2_CAP_TUNER;
1527 cap->capabilities = cap->device_caps | V4L2_CAP_READWRITE |
1528 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE |
1529 V4L2_CAP_STREAMING | V4L2_CAP_DEVICE_CAPS;
1530 if (video_is_registered(&dev->radio_dev))
1531 cap->capabilities |= V4L2_CAP_RADIO;
1532
1533 return 0;
1534 }
1535
1536 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1537 struct v4l2_fmtdesc *f)
1538 {
1539 if (unlikely(f->index >= ARRAY_SIZE(format)))
1540 return -EINVAL;
1541
1542 strlcpy(f->description, format[f->index].name, sizeof(f->description));
1543 f->pixelformat = format[f->index].fourcc;
1544
1545 return 0;
1546 }
1547
1548 /* RAW VBI ioctls */
1549
1550 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1551 struct v4l2_format *f)
1552 {
1553 struct cx231xx_fh *fh = priv;
1554 struct cx231xx *dev = fh->dev;
1555
1556 f->fmt.vbi.sampling_rate = 6750000 * 4;
1557 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1558 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1559 f->fmt.vbi.offset = 0;
1560 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1561 PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1562 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1563 PAL_VBI_LINES : NTSC_VBI_LINES;
1564 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1565 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1566 f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1567 memset(f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
1568
1569 return 0;
1570
1571 }
1572
1573 static int vidioc_try_fmt_vbi_cap(struct file *file, void *priv,
1574 struct v4l2_format *f)
1575 {
1576 struct cx231xx_fh *fh = priv;
1577 struct cx231xx *dev = fh->dev;
1578
1579 f->fmt.vbi.sampling_rate = 6750000 * 4;
1580 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1581 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1582 f->fmt.vbi.offset = 0;
1583 f->fmt.vbi.flags = 0;
1584 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1585 PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1586 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1587 PAL_VBI_LINES : NTSC_VBI_LINES;
1588 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1589 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1590 f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1591 memset(f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
1592
1593 return 0;
1594
1595 }
1596
1597 static int vidioc_s_fmt_vbi_cap(struct file *file, void *priv,
1598 struct v4l2_format *f)
1599 {
1600 struct cx231xx_fh *fh = priv;
1601 struct cx231xx *dev = fh->dev;
1602
1603 if (dev->vbi_stream_on && !fh->stream_on) {
1604 dev_err(dev->dev,
1605 "%s device in use by another fh\n", __func__);
1606 return -EBUSY;
1607 }
1608 return vidioc_try_fmt_vbi_cap(file, priv, f);
1609 }
1610
1611 static int vidioc_reqbufs(struct file *file, void *priv,
1612 struct v4l2_requestbuffers *rb)
1613 {
1614 struct cx231xx_fh *fh = priv;
1615 struct cx231xx *dev = fh->dev;
1616 int rc;
1617
1618 rc = check_dev(dev);
1619 if (rc < 0)
1620 return rc;
1621
1622 return videobuf_reqbufs(&fh->vb_vidq, rb);
1623 }
1624
1625 static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *b)
1626 {
1627 struct cx231xx_fh *fh = priv;
1628 struct cx231xx *dev = fh->dev;
1629 int rc;
1630
1631 rc = check_dev(dev);
1632 if (rc < 0)
1633 return rc;
1634
1635 return videobuf_querybuf(&fh->vb_vidq, b);
1636 }
1637
1638 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
1639 {
1640 struct cx231xx_fh *fh = priv;
1641 struct cx231xx *dev = fh->dev;
1642 int rc;
1643
1644 rc = check_dev(dev);
1645 if (rc < 0)
1646 return rc;
1647
1648 return videobuf_qbuf(&fh->vb_vidq, b);
1649 }
1650
1651 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
1652 {
1653 struct cx231xx_fh *fh = priv;
1654 struct cx231xx *dev = fh->dev;
1655 int rc;
1656
1657 rc = check_dev(dev);
1658 if (rc < 0)
1659 return rc;
1660
1661 return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK);
1662 }
1663
1664 /* ----------------------------------------------------------- */
1665 /* RADIO ESPECIFIC IOCTLS */
1666 /* ----------------------------------------------------------- */
1667
1668 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1669 {
1670 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
1671
1672 if (t->index)
1673 return -EINVAL;
1674
1675 strcpy(t->name, "Radio");
1676
1677 call_all(dev, tuner, g_tuner, t);
1678
1679 return 0;
1680 }
1681 static int radio_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t)
1682 {
1683 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
1684
1685 if (t->index)
1686 return -EINVAL;
1687
1688 call_all(dev, tuner, s_tuner, t);
1689
1690 return 0;
1691 }
1692
1693 /*
1694 * cx231xx_v4l2_open()
1695 * inits the device and starts isoc transfer
1696 */
1697 static int cx231xx_v4l2_open(struct file *filp)
1698 {
1699 int radio = 0;
1700 struct video_device *vdev = video_devdata(filp);
1701 struct cx231xx *dev = video_drvdata(filp);
1702 struct cx231xx_fh *fh;
1703 enum v4l2_buf_type fh_type = 0;
1704
1705 switch (vdev->vfl_type) {
1706 case VFL_TYPE_GRABBER:
1707 fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1708 break;
1709 case VFL_TYPE_VBI:
1710 fh_type = V4L2_BUF_TYPE_VBI_CAPTURE;
1711 break;
1712 case VFL_TYPE_RADIO:
1713 radio = 1;
1714 break;
1715 }
1716
1717 cx231xx_videodbg("open dev=%s type=%s users=%d\n",
1718 video_device_node_name(vdev), v4l2_type_names[fh_type],
1719 dev->users);
1720
1721 #if 0
1722 errCode = cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
1723 if (errCode < 0) {
1724 dev_err(dev->dev,
1725 "Device locked on digital mode. Can't open analog\n");
1726 return -EBUSY;
1727 }
1728 #endif
1729
1730 fh = kzalloc(sizeof(struct cx231xx_fh), GFP_KERNEL);
1731 if (!fh)
1732 return -ENOMEM;
1733 if (mutex_lock_interruptible(&dev->lock)) {
1734 kfree(fh);
1735 return -ERESTARTSYS;
1736 }
1737 fh->dev = dev;
1738 fh->type = fh_type;
1739 filp->private_data = fh;
1740 v4l2_fh_init(&fh->fh, vdev);
1741
1742 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
1743 /* Power up in Analog TV mode */
1744 if (dev->board.external_av)
1745 cx231xx_set_power_mode(dev,
1746 POLARIS_AVMODE_ENXTERNAL_AV);
1747 else
1748 cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV);
1749
1750 #if 0
1751 cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
1752 #endif
1753
1754 /* set video alternate setting */
1755 cx231xx_set_video_alternate(dev);
1756
1757 /* Needed, since GPIO might have disabled power of
1758 some i2c device */
1759 cx231xx_config_i2c(dev);
1760
1761 /* device needs to be initialized before isoc transfer */
1762 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1763
1764 }
1765 if (radio) {
1766 cx231xx_videodbg("video_open: setting radio device\n");
1767
1768 /* cx231xx_start_radio(dev); */
1769
1770 call_all(dev, tuner, s_radio);
1771 }
1772
1773 dev->users++;
1774
1775 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1776 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_video_qops,
1777 NULL, &dev->video_mode.slock,
1778 fh->type, V4L2_FIELD_INTERLACED,
1779 sizeof(struct cx231xx_buffer),
1780 fh, &dev->lock);
1781 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
1782 /* Set the required alternate setting VBI interface works in
1783 Bulk mode only */
1784 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1785
1786 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_vbi_qops,
1787 NULL, &dev->vbi_mode.slock,
1788 fh->type, V4L2_FIELD_SEQ_TB,
1789 sizeof(struct cx231xx_buffer),
1790 fh, &dev->lock);
1791 }
1792 mutex_unlock(&dev->lock);
1793 v4l2_fh_add(&fh->fh);
1794
1795 return 0;
1796 }
1797
1798 /*
1799 * cx231xx_realease_resources()
1800 * unregisters the v4l2,i2c and usb devices
1801 * called when the device gets disconected or at module unload
1802 */
1803 void cx231xx_release_analog_resources(struct cx231xx *dev)
1804 {
1805
1806 /*FIXME: I2C IR should be disconnected */
1807
1808 if (video_is_registered(&dev->radio_dev))
1809 video_unregister_device(&dev->radio_dev);
1810 if (video_is_registered(&dev->vbi_dev)) {
1811 dev_info(dev->dev, "V4L2 device %s deregistered\n",
1812 video_device_node_name(&dev->vbi_dev));
1813 video_unregister_device(&dev->vbi_dev);
1814 }
1815 if (video_is_registered(&dev->vdev)) {
1816 dev_info(dev->dev, "V4L2 device %s deregistered\n",
1817 video_device_node_name(&dev->vdev));
1818
1819 if (dev->board.has_417)
1820 cx231xx_417_unregister(dev);
1821
1822 video_unregister_device(&dev->vdev);
1823 }
1824 v4l2_ctrl_handler_free(&dev->ctrl_handler);
1825 v4l2_ctrl_handler_free(&dev->radio_ctrl_handler);
1826 }
1827
1828 /*
1829 * cx231xx_close()
1830 * stops streaming and deallocates all resources allocated by the v4l2
1831 * calls and ioctls
1832 */
1833 static int cx231xx_close(struct file *filp)
1834 {
1835 struct cx231xx_fh *fh = filp->private_data;
1836 struct cx231xx *dev = fh->dev;
1837
1838 cx231xx_videodbg("users=%d\n", dev->users);
1839
1840 cx231xx_videodbg("users=%d\n", dev->users);
1841 if (res_check(fh))
1842 res_free(fh);
1843
1844 /*
1845 * To workaround error number=-71 on EP0 for VideoGrabber,
1846 * need exclude following.
1847 * FIXME: It is probably safe to remove most of these, as we're
1848 * now avoiding the alternate setting for INDEX_VANC
1849 */
1850 if (!dev->board.no_alt_vanc)
1851 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
1852 videobuf_stop(&fh->vb_vidq);
1853 videobuf_mmap_free(&fh->vb_vidq);
1854
1855 /* the device is already disconnect,
1856 free the remaining resources */
1857 if (dev->state & DEV_DISCONNECTED) {
1858 if (atomic_read(&dev->devlist_count) > 0) {
1859 cx231xx_release_resources(dev);
1860 fh->dev = NULL;
1861 return 0;
1862 }
1863 return 0;
1864 }
1865
1866 /* do this before setting alternate! */
1867 cx231xx_uninit_vbi_isoc(dev);
1868
1869 /* set alternate 0 */
1870 if (!dev->vbi_or_sliced_cc_mode)
1871 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1872 else
1873 cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1874
1875 v4l2_fh_del(&fh->fh);
1876 v4l2_fh_exit(&fh->fh);
1877 kfree(fh);
1878 dev->users--;
1879 wake_up_interruptible(&dev->open);
1880 return 0;
1881 }
1882
1883 v4l2_fh_del(&fh->fh);
1884 dev->users--;
1885 if (!dev->users) {
1886 videobuf_stop(&fh->vb_vidq);
1887 videobuf_mmap_free(&fh->vb_vidq);
1888
1889 /* the device is already disconnect,
1890 free the remaining resources */
1891 if (dev->state & DEV_DISCONNECTED) {
1892 cx231xx_release_resources(dev);
1893 fh->dev = NULL;
1894 return 0;
1895 }
1896
1897 /* Save some power by putting tuner to sleep */
1898 call_all(dev, core, s_power, 0);
1899
1900 /* do this before setting alternate! */
1901 if (dev->USE_ISO)
1902 cx231xx_uninit_isoc(dev);
1903 else
1904 cx231xx_uninit_bulk(dev);
1905 cx231xx_set_mode(dev, CX231XX_SUSPEND);
1906
1907 /* set alternate 0 */
1908 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1909 }
1910 v4l2_fh_exit(&fh->fh);
1911 kfree(fh);
1912 wake_up_interruptible(&dev->open);
1913 return 0;
1914 }
1915
1916 static int cx231xx_v4l2_close(struct file *filp)
1917 {
1918 struct cx231xx_fh *fh = filp->private_data;
1919 struct cx231xx *dev = fh->dev;
1920 int rc;
1921
1922 mutex_lock(&dev->lock);
1923 rc = cx231xx_close(filp);
1924 mutex_unlock(&dev->lock);
1925 return rc;
1926 }
1927
1928 /*
1929 * cx231xx_v4l2_read()
1930 * will allocate buffers when called for the first time
1931 */
1932 static ssize_t
1933 cx231xx_v4l2_read(struct file *filp, char __user *buf, size_t count,
1934 loff_t *pos)
1935 {
1936 struct cx231xx_fh *fh = filp->private_data;
1937 struct cx231xx *dev = fh->dev;
1938 int rc;
1939
1940 rc = check_dev(dev);
1941 if (rc < 0)
1942 return rc;
1943
1944 if ((fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
1945 (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)) {
1946 rc = res_get(fh);
1947
1948 if (unlikely(rc < 0))
1949 return rc;
1950
1951 if (mutex_lock_interruptible(&dev->lock))
1952 return -ERESTARTSYS;
1953 rc = videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0,
1954 filp->f_flags & O_NONBLOCK);
1955 mutex_unlock(&dev->lock);
1956 return rc;
1957 }
1958 return 0;
1959 }
1960
1961 /*
1962 * cx231xx_v4l2_poll()
1963 * will allocate buffers when called for the first time
1964 */
1965 static unsigned int cx231xx_v4l2_poll(struct file *filp, poll_table *wait)
1966 {
1967 unsigned long req_events = poll_requested_events(wait);
1968 struct cx231xx_fh *fh = filp->private_data;
1969 struct cx231xx *dev = fh->dev;
1970 unsigned res = 0;
1971 int rc;
1972
1973 rc = check_dev(dev);
1974 if (rc < 0)
1975 return POLLERR;
1976
1977 rc = res_get(fh);
1978
1979 if (unlikely(rc < 0))
1980 return POLLERR;
1981
1982 if (v4l2_event_pending(&fh->fh))
1983 res |= POLLPRI;
1984 else
1985 poll_wait(filp, &fh->fh.wait, wait);
1986
1987 if (!(req_events & (POLLIN | POLLRDNORM)))
1988 return res;
1989
1990 if ((V4L2_BUF_TYPE_VIDEO_CAPTURE == fh->type) ||
1991 (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type)) {
1992 mutex_lock(&dev->lock);
1993 res |= videobuf_poll_stream(filp, &fh->vb_vidq, wait);
1994 mutex_unlock(&dev->lock);
1995 return res;
1996 }
1997 return res | POLLERR;
1998 }
1999
2000 /*
2001 * cx231xx_v4l2_mmap()
2002 */
2003 static int cx231xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
2004 {
2005 struct cx231xx_fh *fh = filp->private_data;
2006 struct cx231xx *dev = fh->dev;
2007 int rc;
2008
2009 rc = check_dev(dev);
2010 if (rc < 0)
2011 return rc;
2012
2013 rc = res_get(fh);
2014
2015 if (unlikely(rc < 0))
2016 return rc;
2017
2018 if (mutex_lock_interruptible(&dev->lock))
2019 return -ERESTARTSYS;
2020 rc = videobuf_mmap_mapper(&fh->vb_vidq, vma);
2021 mutex_unlock(&dev->lock);
2022
2023 cx231xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n",
2024 (unsigned long)vma->vm_start,
2025 (unsigned long)vma->vm_end -
2026 (unsigned long)vma->vm_start, rc);
2027
2028 return rc;
2029 }
2030
2031 static const struct v4l2_file_operations cx231xx_v4l_fops = {
2032 .owner = THIS_MODULE,
2033 .open = cx231xx_v4l2_open,
2034 .release = cx231xx_v4l2_close,
2035 .read = cx231xx_v4l2_read,
2036 .poll = cx231xx_v4l2_poll,
2037 .mmap = cx231xx_v4l2_mmap,
2038 .unlocked_ioctl = video_ioctl2,
2039 };
2040
2041 static const struct v4l2_ioctl_ops video_ioctl_ops = {
2042 .vidioc_querycap = cx231xx_querycap,
2043 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
2044 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
2045 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
2046 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
2047 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
2048 .vidioc_try_fmt_vbi_cap = vidioc_try_fmt_vbi_cap,
2049 .vidioc_s_fmt_vbi_cap = vidioc_s_fmt_vbi_cap,
2050 .vidioc_cropcap = vidioc_cropcap,
2051 .vidioc_reqbufs = vidioc_reqbufs,
2052 .vidioc_querybuf = vidioc_querybuf,
2053 .vidioc_qbuf = vidioc_qbuf,
2054 .vidioc_dqbuf = vidioc_dqbuf,
2055 .vidioc_s_std = vidioc_s_std,
2056 .vidioc_g_std = vidioc_g_std,
2057 .vidioc_enum_input = cx231xx_enum_input,
2058 .vidioc_g_input = cx231xx_g_input,
2059 .vidioc_s_input = cx231xx_s_input,
2060 .vidioc_streamon = vidioc_streamon,
2061 .vidioc_streamoff = vidioc_streamoff,
2062 .vidioc_g_tuner = cx231xx_g_tuner,
2063 .vidioc_s_tuner = cx231xx_s_tuner,
2064 .vidioc_g_frequency = cx231xx_g_frequency,
2065 .vidioc_s_frequency = cx231xx_s_frequency,
2066 #ifdef CONFIG_VIDEO_ADV_DEBUG
2067 .vidioc_g_chip_info = cx231xx_g_chip_info,
2068 .vidioc_g_register = cx231xx_g_register,
2069 .vidioc_s_register = cx231xx_s_register,
2070 #endif
2071 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
2072 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
2073 };
2074
2075 static struct video_device cx231xx_vbi_template;
2076
2077 static const struct video_device cx231xx_video_template = {
2078 .fops = &cx231xx_v4l_fops,
2079 .release = video_device_release_empty,
2080 .ioctl_ops = &video_ioctl_ops,
2081 .tvnorms = V4L2_STD_ALL,
2082 };
2083
2084 static const struct v4l2_file_operations radio_fops = {
2085 .owner = THIS_MODULE,
2086 .open = cx231xx_v4l2_open,
2087 .release = cx231xx_v4l2_close,
2088 .poll = v4l2_ctrl_poll,
2089 .unlocked_ioctl = video_ioctl2,
2090 };
2091
2092 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
2093 .vidioc_querycap = cx231xx_querycap,
2094 .vidioc_g_tuner = radio_g_tuner,
2095 .vidioc_s_tuner = radio_s_tuner,
2096 .vidioc_g_frequency = cx231xx_g_frequency,
2097 .vidioc_s_frequency = cx231xx_s_frequency,
2098 #ifdef CONFIG_VIDEO_ADV_DEBUG
2099 .vidioc_g_chip_info = cx231xx_g_chip_info,
2100 .vidioc_g_register = cx231xx_g_register,
2101 .vidioc_s_register = cx231xx_s_register,
2102 #endif
2103 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
2104 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
2105 };
2106
2107 static struct video_device cx231xx_radio_template = {
2108 .name = "cx231xx-radio",
2109 .fops = &radio_fops,
2110 .ioctl_ops = &radio_ioctl_ops,
2111 };
2112
2113 /******************************** usb interface ******************************/
2114
2115 static void cx231xx_vdev_init(struct cx231xx *dev,
2116 struct video_device *vfd,
2117 const struct video_device *template,
2118 const char *type_name)
2119 {
2120 *vfd = *template;
2121 vfd->v4l2_dev = &dev->v4l2_dev;
2122 vfd->release = video_device_release_empty;
2123 vfd->lock = &dev->lock;
2124
2125 snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
2126
2127 video_set_drvdata(vfd, dev);
2128 if (dev->tuner_type == TUNER_ABSENT) {
2129 v4l2_disable_ioctl(vfd, VIDIOC_G_FREQUENCY);
2130 v4l2_disable_ioctl(vfd, VIDIOC_S_FREQUENCY);
2131 v4l2_disable_ioctl(vfd, VIDIOC_G_TUNER);
2132 v4l2_disable_ioctl(vfd, VIDIOC_S_TUNER);
2133 }
2134 }
2135
2136 int cx231xx_register_analog_devices(struct cx231xx *dev)
2137 {
2138 int ret;
2139
2140 dev_info(dev->dev, "v4l2 driver version %s\n", CX231XX_VERSION);
2141
2142 /* set default norm */
2143 dev->norm = V4L2_STD_PAL;
2144 dev->width = norm_maxw(dev);
2145 dev->height = norm_maxh(dev);
2146 dev->interlaced = 0;
2147
2148 /* Analog specific initialization */
2149 dev->format = &format[0];
2150
2151 /* Set the initial input */
2152 video_mux(dev, dev->video_input);
2153
2154 call_all(dev, video, s_std, dev->norm);
2155
2156 v4l2_ctrl_handler_init(&dev->ctrl_handler, 10);
2157 v4l2_ctrl_handler_init(&dev->radio_ctrl_handler, 5);
2158
2159 if (dev->sd_cx25840) {
2160 v4l2_ctrl_add_handler(&dev->ctrl_handler,
2161 dev->sd_cx25840->ctrl_handler, NULL);
2162 v4l2_ctrl_add_handler(&dev->radio_ctrl_handler,
2163 dev->sd_cx25840->ctrl_handler,
2164 v4l2_ctrl_radio_filter);
2165 }
2166
2167 if (dev->ctrl_handler.error)
2168 return dev->ctrl_handler.error;
2169 if (dev->radio_ctrl_handler.error)
2170 return dev->radio_ctrl_handler.error;
2171
2172 /* enable vbi capturing */
2173 /* write code here... */
2174
2175 /* allocate and fill video video_device struct */
2176 cx231xx_vdev_init(dev, &dev->vdev, &cx231xx_video_template, "video");
2177 #if defined(CONFIG_MEDIA_CONTROLLER)
2178 dev->video_pad.flags = MEDIA_PAD_FL_SINK;
2179 ret = media_entity_init(&dev->vdev.entity, 1, &dev->video_pad, 0);
2180 if (ret < 0)
2181 dev_err(dev->dev, "failed to initialize video media entity!\n");
2182 #endif
2183 dev->vdev.ctrl_handler = &dev->ctrl_handler;
2184 /* register v4l2 video video_device */
2185 ret = video_register_device(&dev->vdev, VFL_TYPE_GRABBER,
2186 video_nr[dev->devno]);
2187 if (ret) {
2188 dev_err(dev->dev,
2189 "unable to register video device (error=%i).\n",
2190 ret);
2191 return ret;
2192 }
2193
2194 dev_info(dev->dev, "Registered video device %s [v4l2]\n",
2195 video_device_node_name(&dev->vdev));
2196
2197 /* Initialize VBI template */
2198 cx231xx_vbi_template = cx231xx_video_template;
2199 strcpy(cx231xx_vbi_template.name, "cx231xx-vbi");
2200
2201 /* Allocate and fill vbi video_device struct */
2202 cx231xx_vdev_init(dev, &dev->vbi_dev, &cx231xx_vbi_template, "vbi");
2203
2204 #if defined(CONFIG_MEDIA_CONTROLLER)
2205 dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
2206 ret = media_entity_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad, 0);
2207 if (ret < 0)
2208 dev_err(dev->dev, "failed to initialize vbi media entity!\n");
2209 #endif
2210 dev->vbi_dev.ctrl_handler = &dev->ctrl_handler;
2211 /* register v4l2 vbi video_device */
2212 ret = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI,
2213 vbi_nr[dev->devno]);
2214 if (ret < 0) {
2215 dev_err(dev->dev, "unable to register vbi device\n");
2216 return ret;
2217 }
2218
2219 dev_info(dev->dev, "Registered VBI device %s\n",
2220 video_device_node_name(&dev->vbi_dev));
2221
2222 if (cx231xx_boards[dev->model].radio.type == CX231XX_RADIO) {
2223 cx231xx_vdev_init(dev, &dev->radio_dev,
2224 &cx231xx_radio_template, "radio");
2225 dev->radio_dev.ctrl_handler = &dev->radio_ctrl_handler;
2226 ret = video_register_device(&dev->radio_dev, VFL_TYPE_RADIO,
2227 radio_nr[dev->devno]);
2228 if (ret < 0) {
2229 dev_err(dev->dev,
2230 "can't register radio device\n");
2231 return ret;
2232 }
2233 dev_info(dev->dev, "Registered radio device as %s\n",
2234 video_device_node_name(&dev->radio_dev));
2235 }
2236
2237 return 0;
2238 }
Linux with added FPC-III support