?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Linux 3.11-rc3
[cris-mirror.git] / drivers / media / usb / cx231xx / cx231xx-video.c
blob990626101718c54369538c2391d9ac4de4008e46
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 <linux/init.h>
26 #include <linux/list.h>
27 #include <linux/module.h>
28 #include <linux/kernel.h>
29 #include <linux/bitmap.h>
30 #include <linux/usb.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.h"
45 #include "cx231xx-vbi.h"
46
47 #define CX231XX_VERSION "0.0.2"
48
49 #define DRIVER_AUTHOR "Srinivasa Deevi <srinivasa.deevi@conexant.com>"
50 #define DRIVER_DESC "Conexant cx231xx based USB video device driver"
51
52 #define cx231xx_videodbg(fmt, arg...) do {\
53 if (video_debug) \
54 printk(KERN_INFO "%s %s :"fmt, \
55 dev->name, __func__ , ##arg); } while (0)
56
57 static unsigned int isoc_debug;
58 module_param(isoc_debug, int, 0644);
59 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
60
61 #define cx231xx_isocdbg(fmt, arg...) \
62 do {\
63 if (isoc_debug) { \
64 printk(KERN_INFO "%s %s :"fmt, \
65 dev->name, __func__ , ##arg); \
66 } \
67 } while (0)
68
69 MODULE_AUTHOR(DRIVER_AUTHOR);
70 MODULE_DESCRIPTION(DRIVER_DESC);
71 MODULE_LICENSE("GPL");
72 MODULE_VERSION(CX231XX_VERSION);
73
74 static unsigned int card[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
75 static unsigned int video_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
76 static unsigned int vbi_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
77 static unsigned int radio_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
78
79 module_param_array(card, int, NULL, 0444);
80 module_param_array(video_nr, int, NULL, 0444);
81 module_param_array(vbi_nr, int, NULL, 0444);
82 module_param_array(radio_nr, int, NULL, 0444);
83
84 MODULE_PARM_DESC(card, "card type");
85 MODULE_PARM_DESC(video_nr, "video device numbers");
86 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
87 MODULE_PARM_DESC(radio_nr, "radio device numbers");
88
89 static unsigned int video_debug;
90 module_param(video_debug, int, 0644);
91 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
92
93 /* supported video standards */
94 static struct cx231xx_fmt format[] = {
95 {
96 .name = "16bpp YUY2, 4:2:2, packed",
97 .fourcc = V4L2_PIX_FMT_YUYV,
98 .depth = 16,
99 .reg = 0,
100 },
101 };
102
103
104 /* ------------------------------------------------------------------
105 Video buffer and parser functions
106 ------------------------------------------------------------------*/
107
108 /*
109 * Announces that a buffer were filled and request the next
110 */
111 static inline void buffer_filled(struct cx231xx *dev,
112 struct cx231xx_dmaqueue *dma_q,
113 struct cx231xx_buffer *buf)
114 {
115 /* Advice that buffer was filled */
116 cx231xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
117 buf->vb.state = VIDEOBUF_DONE;
118 buf->vb.field_count++;
119 v4l2_get_timestamp(&buf->vb.ts);
120
121 if (dev->USE_ISO)
122 dev->video_mode.isoc_ctl.buf = NULL;
123 else
124 dev->video_mode.bulk_ctl.buf = NULL;
125
126 list_del(&buf->vb.queue);
127 wake_up(&buf->vb.done);
128 }
129
130 static inline void print_err_status(struct cx231xx *dev, int packet, int status)
131 {
132 char *errmsg = "Unknown";
133
134 switch (status) {
135 case -ENOENT:
136 errmsg = "unlinked synchronuously";
137 break;
138 case -ECONNRESET:
139 errmsg = "unlinked asynchronuously";
140 break;
141 case -ENOSR:
142 errmsg = "Buffer error (overrun)";
143 break;
144 case -EPIPE:
145 errmsg = "Stalled (device not responding)";
146 break;
147 case -EOVERFLOW:
148 errmsg = "Babble (bad cable?)";
149 break;
150 case -EPROTO:
151 errmsg = "Bit-stuff error (bad cable?)";
152 break;
153 case -EILSEQ:
154 errmsg = "CRC/Timeout (could be anything)";
155 break;
156 case -ETIME:
157 errmsg = "Device does not respond";
158 break;
159 }
160 if (packet < 0) {
161 cx231xx_isocdbg("URB status %d [%s].\n", status, errmsg);
162 } else {
163 cx231xx_isocdbg("URB packet %d, status %d [%s].\n",
164 packet, status, errmsg);
165 }
166 }
167
168 /*
169 * video-buf generic routine to get the next available buffer
170 */
171 static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q,
172 struct cx231xx_buffer **buf)
173 {
174 struct cx231xx_video_mode *vmode =
175 container_of(dma_q, struct cx231xx_video_mode, vidq);
176 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
177
178 char *outp;
179
180 if (list_empty(&dma_q->active)) {
181 cx231xx_isocdbg("No active queue to serve\n");
182 if (dev->USE_ISO)
183 dev->video_mode.isoc_ctl.buf = NULL;
184 else
185 dev->video_mode.bulk_ctl.buf = NULL;
186 *buf = NULL;
187 return;
188 }
189
190 /* Get the next buffer */
191 *buf = list_entry(dma_q->active.next, struct cx231xx_buffer, vb.queue);
192
193 /* Cleans up buffer - Useful for testing for frame/URB loss */
194 outp = videobuf_to_vmalloc(&(*buf)->vb);
195 memset(outp, 0, (*buf)->vb.size);
196
197 if (dev->USE_ISO)
198 dev->video_mode.isoc_ctl.buf = *buf;
199 else
200 dev->video_mode.bulk_ctl.buf = *buf;
201
202 return;
203 }
204
205 /*
206 * Controls the isoc copy of each urb packet
207 */
208 static inline int cx231xx_isoc_copy(struct cx231xx *dev, struct urb *urb)
209 {
210 struct cx231xx_dmaqueue *dma_q = urb->context;
211 int i, rc = 1;
212 unsigned char *p_buffer;
213 u32 bytes_parsed = 0, buffer_size = 0;
214 u8 sav_eav = 0;
215
216 if (!dev)
217 return 0;
218
219 if (dev->state & DEV_DISCONNECTED)
220 return 0;
221
222 if (urb->status < 0) {
223 print_err_status(dev, -1, urb->status);
224 if (urb->status == -ENOENT)
225 return 0;
226 }
227
228 for (i = 0; i < urb->number_of_packets; i++) {
229 int status = urb->iso_frame_desc[i].status;
230
231 if (status < 0) {
232 print_err_status(dev, i, status);
233 if (urb->iso_frame_desc[i].status != -EPROTO)
234 continue;
235 }
236
237 if (urb->iso_frame_desc[i].actual_length <= 0) {
238 /* cx231xx_isocdbg("packet %d is empty",i); - spammy */
239 continue;
240 }
241 if (urb->iso_frame_desc[i].actual_length >
242 dev->video_mode.max_pkt_size) {
243 cx231xx_isocdbg("packet bigger than packet size");
244 continue;
245 }
246
247 /* get buffer pointer and length */
248 p_buffer = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
249 buffer_size = urb->iso_frame_desc[i].actual_length;
250 bytes_parsed = 0;
251
252 if (dma_q->is_partial_line) {
253 /* Handle the case of a partial line */
254 sav_eav = dma_q->last_sav;
255 } else {
256 /* Check for a SAV/EAV overlapping
257 the buffer boundary */
258 sav_eav =
259 cx231xx_find_boundary_SAV_EAV(p_buffer,
260 dma_q->partial_buf,
261 &bytes_parsed);
262 }
263
264 sav_eav &= 0xF0;
265 /* Get the first line if we have some portion of an SAV/EAV from
266 the last buffer or a partial line */
267 if (sav_eav) {
268 bytes_parsed += cx231xx_get_video_line(dev, dma_q,
269 sav_eav, /* SAV/EAV */
270 p_buffer + bytes_parsed, /* p_buffer */
271 buffer_size - bytes_parsed);/* buf size */
272 }
273
274 /* Now parse data that is completely in this buffer */
275 /* dma_q->is_partial_line = 0; */
276
277 while (bytes_parsed < buffer_size) {
278 u32 bytes_used = 0;
279
280 sav_eav = cx231xx_find_next_SAV_EAV(
281 p_buffer + bytes_parsed, /* p_buffer */
282 buffer_size - bytes_parsed, /* buf size */
283 &bytes_used);/* bytes used to get SAV/EAV */
284
285 bytes_parsed += bytes_used;
286
287 sav_eav &= 0xF0;
288 if (sav_eav && (bytes_parsed < buffer_size)) {
289 bytes_parsed += cx231xx_get_video_line(dev,
290 dma_q, sav_eav, /* SAV/EAV */
291 p_buffer + bytes_parsed,/* p_buffer */
292 buffer_size - bytes_parsed);/*buf size*/
293 }
294 }
295
296 /* Save the last four bytes of the buffer so we can check the
297 buffer boundary condition next time */
298 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
299 bytes_parsed = 0;
300
301 }
302 return rc;
303 }
304
305 static inline int cx231xx_bulk_copy(struct cx231xx *dev, struct urb *urb)
306 {
307 struct cx231xx_dmaqueue *dma_q = urb->context;
308 int rc = 1;
309 unsigned char *p_buffer;
310 u32 bytes_parsed = 0, buffer_size = 0;
311 u8 sav_eav = 0;
312
313 if (!dev)
314 return 0;
315
316 if (dev->state & DEV_DISCONNECTED)
317 return 0;
318
319 if (urb->status < 0) {
320 print_err_status(dev, -1, urb->status);
321 if (urb->status == -ENOENT)
322 return 0;
323 }
324
325 if (1) {
326
327 /* get buffer pointer and length */
328 p_buffer = urb->transfer_buffer;
329 buffer_size = urb->actual_length;
330 bytes_parsed = 0;
331
332 if (dma_q->is_partial_line) {
333 /* Handle the case of a partial line */
334 sav_eav = dma_q->last_sav;
335 } else {
336 /* Check for a SAV/EAV overlapping
337 the buffer boundary */
338 sav_eav =
339 cx231xx_find_boundary_SAV_EAV(p_buffer,
340 dma_q->partial_buf,
341 &bytes_parsed);
342 }
343
344 sav_eav &= 0xF0;
345 /* Get the first line if we have some portion of an SAV/EAV from
346 the last buffer or a partial line */
347 if (sav_eav) {
348 bytes_parsed += cx231xx_get_video_line(dev, dma_q,
349 sav_eav, /* SAV/EAV */
350 p_buffer + bytes_parsed, /* p_buffer */
351 buffer_size - bytes_parsed);/* buf size */
352 }
353
354 /* Now parse data that is completely in this buffer */
355 /* dma_q->is_partial_line = 0; */
356
357 while (bytes_parsed < buffer_size) {
358 u32 bytes_used = 0;
359
360 sav_eav = cx231xx_find_next_SAV_EAV(
361 p_buffer + bytes_parsed, /* p_buffer */
362 buffer_size - bytes_parsed, /* buf size */
363 &bytes_used);/* bytes used to get SAV/EAV */
364
365 bytes_parsed += bytes_used;
366
367 sav_eav &= 0xF0;
368 if (sav_eav && (bytes_parsed < buffer_size)) {
369 bytes_parsed += cx231xx_get_video_line(dev,
370 dma_q, sav_eav, /* SAV/EAV */
371 p_buffer + bytes_parsed,/* p_buffer */
372 buffer_size - bytes_parsed);/*buf size*/
373 }
374 }
375
376 /* Save the last four bytes of the buffer so we can check the
377 buffer boundary condition next time */
378 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
379 bytes_parsed = 0;
380
381 }
382 return rc;
383 }
384
385
386 u8 cx231xx_find_boundary_SAV_EAV(u8 *p_buffer, u8 *partial_buf,
387 u32 *p_bytes_used)
388 {
389 u32 bytes_used;
390 u8 boundary_bytes[8];
391 u8 sav_eav = 0;
392
393 *p_bytes_used = 0;
394
395 /* Create an array of the last 4 bytes of the last buffer and the first
396 4 bytes of the current buffer. */
397
398 memcpy(boundary_bytes, partial_buf, 4);
399 memcpy(boundary_bytes + 4, p_buffer, 4);
400
401 /* Check for the SAV/EAV in the boundary buffer */
402 sav_eav = cx231xx_find_next_SAV_EAV((u8 *)&boundary_bytes, 8,
403 &bytes_used);
404
405 if (sav_eav) {
406 /* found a boundary SAV/EAV. Updates the bytes used to reflect
407 only those used in the new buffer */
408 *p_bytes_used = bytes_used - 4;
409 }
410
411 return sav_eav;
412 }
413
414 u8 cx231xx_find_next_SAV_EAV(u8 *p_buffer, u32 buffer_size, u32 *p_bytes_used)
415 {
416 u32 i;
417 u8 sav_eav = 0;
418
419 /*
420 * Don't search if the buffer size is less than 4. It causes a page
421 * fault since buffer_size - 4 evaluates to a large number in that
422 * case.
423 */
424 if (buffer_size < 4) {
425 *p_bytes_used = buffer_size;
426 return 0;
427 }
428
429 for (i = 0; i < (buffer_size - 3); i++) {
430
431 if ((p_buffer[i] == 0xFF) &&
432 (p_buffer[i + 1] == 0x00) && (p_buffer[i + 2] == 0x00)) {
433
434 *p_bytes_used = i + 4;
435 sav_eav = p_buffer[i + 3];
436 return sav_eav;
437 }
438 }
439
440 *p_bytes_used = buffer_size;
441 return 0;
442 }
443
444 u32 cx231xx_get_video_line(struct cx231xx *dev,
445 struct cx231xx_dmaqueue *dma_q, u8 sav_eav,
446 u8 *p_buffer, u32 buffer_size)
447 {
448 u32 bytes_copied = 0;
449 int current_field = -1;
450
451 switch (sav_eav) {
452 case SAV_ACTIVE_VIDEO_FIELD1:
453 /* looking for skipped line which occurred in PAL 720x480 mode.
454 In this case, there will be no active data contained
455 between the SAV and EAV */
456 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
457 (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
458 ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
459 (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
460 (p_buffer[3] == EAV_VBLANK_FIELD1) ||
461 (p_buffer[3] == EAV_VBLANK_FIELD2)))
462 return bytes_copied;
463 current_field = 1;
464 break;
465
466 case SAV_ACTIVE_VIDEO_FIELD2:
467 /* looking for skipped line which occurred in PAL 720x480 mode.
468 In this case, there will be no active data contained between
469 the SAV and EAV */
470 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
471 (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
472 ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
473 (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
474 (p_buffer[3] == EAV_VBLANK_FIELD1) ||
475 (p_buffer[3] == EAV_VBLANK_FIELD2)))
476 return bytes_copied;
477 current_field = 2;
478 break;
479 }
480
481 dma_q->last_sav = sav_eav;
482
483 bytes_copied = cx231xx_copy_video_line(dev, dma_q, p_buffer,
484 buffer_size, current_field);
485
486 return bytes_copied;
487 }
488
489 u32 cx231xx_copy_video_line(struct cx231xx *dev,
490 struct cx231xx_dmaqueue *dma_q, u8 *p_line,
491 u32 length, int field_number)
492 {
493 u32 bytes_to_copy;
494 struct cx231xx_buffer *buf;
495 u32 _line_size = dev->width * 2;
496
497 if (dma_q->current_field != field_number)
498 cx231xx_reset_video_buffer(dev, dma_q);
499
500 /* get the buffer pointer */
501 if (dev->USE_ISO)
502 buf = dev->video_mode.isoc_ctl.buf;
503 else
504 buf = dev->video_mode.bulk_ctl.buf;
505
506 /* Remember the field number for next time */
507 dma_q->current_field = field_number;
508
509 bytes_to_copy = dma_q->bytes_left_in_line;
510 if (bytes_to_copy > length)
511 bytes_to_copy = length;
512
513 if (dma_q->lines_completed >= dma_q->lines_per_field) {
514 dma_q->bytes_left_in_line -= bytes_to_copy;
515 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ?
516 0 : 1;
517 return 0;
518 }
519
520 dma_q->is_partial_line = 1;
521
522 /* If we don't have a buffer, just return the number of bytes we would
523 have copied if we had a buffer. */
524 if (!buf) {
525 dma_q->bytes_left_in_line -= bytes_to_copy;
526 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0)
527 ? 0 : 1;
528 return bytes_to_copy;
529 }
530
531 /* copy the data to video buffer */
532 cx231xx_do_copy(dev, dma_q, p_line, bytes_to_copy);
533
534 dma_q->pos += bytes_to_copy;
535 dma_q->bytes_left_in_line -= bytes_to_copy;
536
537 if (dma_q->bytes_left_in_line == 0) {
538 dma_q->bytes_left_in_line = _line_size;
539 dma_q->lines_completed++;
540 dma_q->is_partial_line = 0;
541
542 if (cx231xx_is_buffer_done(dev, dma_q) && buf) {
543 buffer_filled(dev, dma_q, buf);
544
545 dma_q->pos = 0;
546 buf = NULL;
547 dma_q->lines_completed = 0;
548 }
549 }
550
551 return bytes_to_copy;
552 }
553
554 void cx231xx_reset_video_buffer(struct cx231xx *dev,
555 struct cx231xx_dmaqueue *dma_q)
556 {
557 struct cx231xx_buffer *buf;
558
559 /* handle the switch from field 1 to field 2 */
560 if (dma_q->current_field == 1) {
561 if (dma_q->lines_completed >= dma_q->lines_per_field)
562 dma_q->field1_done = 1;
563 else
564 dma_q->field1_done = 0;
565 }
566
567 if (dev->USE_ISO)
568 buf = dev->video_mode.isoc_ctl.buf;
569 else
570 buf = dev->video_mode.bulk_ctl.buf;
571
572 if (buf == NULL) {
573 /* first try to get the buffer */
574 get_next_buf(dma_q, &buf);
575
576 dma_q->pos = 0;
577 dma_q->field1_done = 0;
578 dma_q->current_field = -1;
579 }
580
581 /* reset the counters */
582 dma_q->bytes_left_in_line = dev->width << 1;
583 dma_q->lines_completed = 0;
584 }
585
586 int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
587 u8 *p_buffer, u32 bytes_to_copy)
588 {
589 u8 *p_out_buffer = NULL;
590 u32 current_line_bytes_copied = 0;
591 struct cx231xx_buffer *buf;
592 u32 _line_size = dev->width << 1;
593 void *startwrite;
594 int offset, lencopy;
595
596 if (dev->USE_ISO)
597 buf = dev->video_mode.isoc_ctl.buf;
598 else
599 buf = dev->video_mode.bulk_ctl.buf;
600
601 if (buf == NULL)
602 return -1;
603
604 p_out_buffer = videobuf_to_vmalloc(&buf->vb);
605
606 current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line;
607
608 /* Offset field 2 one line from the top of the buffer */
609 offset = (dma_q->current_field == 1) ? 0 : _line_size;
610
611 /* Offset for field 2 */
612 startwrite = p_out_buffer + offset;
613
614 /* lines already completed in the current field */
615 startwrite += (dma_q->lines_completed * _line_size * 2);
616
617 /* bytes already completed in the current line */
618 startwrite += current_line_bytes_copied;
619
620 lencopy = dma_q->bytes_left_in_line > bytes_to_copy ?
621 bytes_to_copy : dma_q->bytes_left_in_line;
622
623 if ((u8 *)(startwrite + lencopy) > (u8 *)(p_out_buffer + buf->vb.size))
624 return 0;
625
626 /* The below copies the UYVY data straight into video buffer */
627 cx231xx_swab((u16 *) p_buffer, (u16 *) startwrite, (u16) lencopy);
628
629 return 0;
630 }
631
632 void cx231xx_swab(u16 *from, u16 *to, u16 len)
633 {
634 u16 i;
635
636 if (len <= 0)
637 return;
638
639 for (i = 0; i < len / 2; i++)
640 to[i] = (from[i] << 8) | (from[i] >> 8);
641 }
642
643 u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q)
644 {
645 u8 buffer_complete = 0;
646
647 /* Dual field stream */
648 buffer_complete = ((dma_q->current_field == 2) &&
649 (dma_q->lines_completed >= dma_q->lines_per_field) &&
650 dma_q->field1_done);
651
652 return buffer_complete;
653 }
654
655 /* ------------------------------------------------------------------
656 Videobuf operations
657 ------------------------------------------------------------------*/
658
659 static int
660 buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
661 {
662 struct cx231xx_fh *fh = vq->priv_data;
663 struct cx231xx *dev = fh->dev;
664
665 *size = (fh->dev->width * fh->dev->height * dev->format->depth + 7)>>3;
666 if (0 == *count)
667 *count = CX231XX_DEF_BUF;
668
669 if (*count < CX231XX_MIN_BUF)
670 *count = CX231XX_MIN_BUF;
671
672 return 0;
673 }
674
675 /* This is called *without* dev->slock held; please keep it that way */
676 static void free_buffer(struct videobuf_queue *vq, struct cx231xx_buffer *buf)
677 {
678 struct cx231xx_fh *fh = vq->priv_data;
679 struct cx231xx *dev = fh->dev;
680 unsigned long flags = 0;
681
682 if (in_interrupt())
683 BUG();
684
685 /* We used to wait for the buffer to finish here, but this didn't work
686 because, as we were keeping the state as VIDEOBUF_QUEUED,
687 videobuf_queue_cancel marked it as finished for us.
688 (Also, it could wedge forever if the hardware was misconfigured.)
689
690 This should be safe; by the time we get here, the buffer isn't
691 queued anymore. If we ever start marking the buffers as
692 VIDEOBUF_ACTIVE, it won't be, though.
693 */
694 spin_lock_irqsave(&dev->video_mode.slock, flags);
695 if (dev->USE_ISO) {
696 if (dev->video_mode.isoc_ctl.buf == buf)
697 dev->video_mode.isoc_ctl.buf = NULL;
698 } else {
699 if (dev->video_mode.bulk_ctl.buf == buf)
700 dev->video_mode.bulk_ctl.buf = NULL;
701 }
702 spin_unlock_irqrestore(&dev->video_mode.slock, flags);
703
704 videobuf_vmalloc_free(&buf->vb);
705 buf->vb.state = VIDEOBUF_NEEDS_INIT;
706 }
707
708 static int
709 buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
710 enum v4l2_field field)
711 {
712 struct cx231xx_fh *fh = vq->priv_data;
713 struct cx231xx_buffer *buf =
714 container_of(vb, struct cx231xx_buffer, vb);
715 struct cx231xx *dev = fh->dev;
716 int rc = 0, urb_init = 0;
717
718 /* The only currently supported format is 16 bits/pixel */
719 buf->vb.size = (fh->dev->width * fh->dev->height * dev->format->depth
720 + 7) >> 3;
721 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
722 return -EINVAL;
723
724 buf->vb.width = dev->width;
725 buf->vb.height = dev->height;
726 buf->vb.field = field;
727
728 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
729 rc = videobuf_iolock(vq, &buf->vb, NULL);
730 if (rc < 0)
731 goto fail;
732 }
733
734 if (dev->USE_ISO) {
735 if (!dev->video_mode.isoc_ctl.num_bufs)
736 urb_init = 1;
737 } else {
738 if (!dev->video_mode.bulk_ctl.num_bufs)
739 urb_init = 1;
740 }
741 /*cx231xx_info("urb_init=%d dev->video_mode.max_pkt_size=%d\n",
742 urb_init, dev->video_mode.max_pkt_size);*/
743 if (urb_init) {
744 dev->mode_tv = 0;
745 if (dev->USE_ISO)
746 rc = cx231xx_init_isoc(dev, CX231XX_NUM_PACKETS,
747 CX231XX_NUM_BUFS,
748 dev->video_mode.max_pkt_size,
749 cx231xx_isoc_copy);
750 else
751 rc = cx231xx_init_bulk(dev, CX231XX_NUM_PACKETS,
752 CX231XX_NUM_BUFS,
753 dev->video_mode.max_pkt_size,
754 cx231xx_bulk_copy);
755 if (rc < 0)
756 goto fail;
757 }
758
759 buf->vb.state = VIDEOBUF_PREPARED;
760 return 0;
761
762 fail:
763 free_buffer(vq, buf);
764 return rc;
765 }
766
767 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
768 {
769 struct cx231xx_buffer *buf =
770 container_of(vb, struct cx231xx_buffer, vb);
771 struct cx231xx_fh *fh = vq->priv_data;
772 struct cx231xx *dev = fh->dev;
773 struct cx231xx_dmaqueue *vidq = &dev->video_mode.vidq;
774
775 buf->vb.state = VIDEOBUF_QUEUED;
776 list_add_tail(&buf->vb.queue, &vidq->active);
777
778 }
779
780 static void buffer_release(struct videobuf_queue *vq,
781 struct videobuf_buffer *vb)
782 {
783 struct cx231xx_buffer *buf =
784 container_of(vb, struct cx231xx_buffer, vb);
785 struct cx231xx_fh *fh = vq->priv_data;
786 struct cx231xx *dev = (struct cx231xx *)fh->dev;
787
788 cx231xx_isocdbg("cx231xx: called buffer_release\n");
789
790 free_buffer(vq, buf);
791 }
792
793 static struct videobuf_queue_ops cx231xx_video_qops = {
794 .buf_setup = buffer_setup,
795 .buf_prepare = buffer_prepare,
796 .buf_queue = buffer_queue,
797 .buf_release = buffer_release,
798 };
799
800 /********************* v4l2 interface **************************************/
801
802 void video_mux(struct cx231xx *dev, int index)
803 {
804 dev->video_input = index;
805 dev->ctl_ainput = INPUT(index)->amux;
806
807 cx231xx_set_video_input_mux(dev, index);
808
809 cx25840_call(dev, video, s_routing, INPUT(index)->vmux, 0, 0);
810
811 cx231xx_set_audio_input(dev, dev->ctl_ainput);
812
813 cx231xx_info("video_mux : %d\n", index);
814
815 /* do mode control overrides if required */
816 cx231xx_do_mode_ctrl_overrides(dev);
817 }
818
819 /* Usage lock check functions */
820 static int res_get(struct cx231xx_fh *fh)
821 {
822 struct cx231xx *dev = fh->dev;
823 int rc = 0;
824
825 /* This instance already has stream_on */
826 if (fh->stream_on)
827 return rc;
828
829 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
830 if (dev->stream_on)
831 return -EBUSY;
832 dev->stream_on = 1;
833 } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
834 if (dev->vbi_stream_on)
835 return -EBUSY;
836 dev->vbi_stream_on = 1;
837 } else
838 return -EINVAL;
839
840 fh->stream_on = 1;
841
842 return rc;
843 }
844
845 static int res_check(struct cx231xx_fh *fh)
846 {
847 return fh->stream_on;
848 }
849
850 static void res_free(struct cx231xx_fh *fh)
851 {
852 struct cx231xx *dev = fh->dev;
853
854 fh->stream_on = 0;
855
856 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
857 dev->stream_on = 0;
858 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
859 dev->vbi_stream_on = 0;
860 }
861
862 static int check_dev(struct cx231xx *dev)
863 {
864 if (dev->state & DEV_DISCONNECTED) {
865 cx231xx_errdev("v4l2 ioctl: device not present\n");
866 return -ENODEV;
867 }
868 return 0;
869 }
870
871 /* ------------------------------------------------------------------
872 IOCTL vidioc handling
873 ------------------------------------------------------------------*/
874
875 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
876 struct v4l2_format *f)
877 {
878 struct cx231xx_fh *fh = priv;
879 struct cx231xx *dev = fh->dev;
880
881 f->fmt.pix.width = dev->width;
882 f->fmt.pix.height = dev->height;
883 f->fmt.pix.pixelformat = dev->format->fourcc;
884 f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3;
885 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height;
886 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
887
888 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
889 f->fmt.pix.priv = 0;
890
891 return 0;
892 }
893
894 static struct cx231xx_fmt *format_by_fourcc(unsigned int fourcc)
895 {
896 unsigned int i;
897
898 for (i = 0; i < ARRAY_SIZE(format); i++)
899 if (format[i].fourcc == fourcc)
900 return &format[i];
901
902 return NULL;
903 }
904
905 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
906 struct v4l2_format *f)
907 {
908 struct cx231xx_fh *fh = priv;
909 struct cx231xx *dev = fh->dev;
910 unsigned int width = f->fmt.pix.width;
911 unsigned int height = f->fmt.pix.height;
912 unsigned int maxw = norm_maxw(dev);
913 unsigned int maxh = norm_maxh(dev);
914 struct cx231xx_fmt *fmt;
915
916 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
917 if (!fmt) {
918 cx231xx_videodbg("Fourcc format (%08x) invalid.\n",
919 f->fmt.pix.pixelformat);
920 return -EINVAL;
921 }
922
923 /* width must even because of the YUYV format
924 height must be even because of interlacing */
925 v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh, 1, 0);
926
927 f->fmt.pix.width = width;
928 f->fmt.pix.height = height;
929 f->fmt.pix.pixelformat = fmt->fourcc;
930 f->fmt.pix.bytesperline = (width * fmt->depth + 7) >> 3;
931 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height;
932 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
933 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
934 f->fmt.pix.priv = 0;
935
936 return 0;
937 }
938
939 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
940 struct v4l2_format *f)
941 {
942 struct cx231xx_fh *fh = priv;
943 struct cx231xx *dev = fh->dev;
944 int rc;
945 struct cx231xx_fmt *fmt;
946 struct v4l2_mbus_framefmt mbus_fmt;
947
948 rc = check_dev(dev);
949 if (rc < 0)
950 return rc;
951
952 vidioc_try_fmt_vid_cap(file, priv, f);
953
954 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
955 if (!fmt)
956 return -EINVAL;
957
958 if (videobuf_queue_is_busy(&fh->vb_vidq)) {
959 cx231xx_errdev("%s queue busy\n", __func__);
960 return -EBUSY;
961 }
962
963 if (dev->stream_on && !fh->stream_on) {
964 cx231xx_errdev("%s device in use by another fh\n", __func__);
965 return -EBUSY;
966 }
967
968 /* set new image size */
969 dev->width = f->fmt.pix.width;
970 dev->height = f->fmt.pix.height;
971 dev->format = fmt;
972
973 v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
974 call_all(dev, video, s_mbus_fmt, &mbus_fmt);
975 v4l2_fill_pix_format(&f->fmt.pix, &mbus_fmt);
976
977 return rc;
978 }
979
980 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
981 {
982 struct cx231xx_fh *fh = priv;
983 struct cx231xx *dev = fh->dev;
984
985 *id = dev->norm;
986 return 0;
987 }
988
989 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
990 {
991 struct cx231xx_fh *fh = priv;
992 struct cx231xx *dev = fh->dev;
993 struct v4l2_mbus_framefmt mbus_fmt;
994 int rc;
995
996 rc = check_dev(dev);
997 if (rc < 0)
998 return rc;
999
1000 if (dev->norm == norm)
1001 return 0;
1002
1003 if (videobuf_queue_is_busy(&fh->vb_vidq))
1004 return -EBUSY;
1005
1006 dev->norm = norm;
1007
1008 /* Adjusts width/height, if needed */
1009 dev->width = 720;
1010 dev->height = (dev->norm & V4L2_STD_625_50) ? 576 : 480;
1011
1012 call_all(dev, core, s_std, dev->norm);
1013
1014 /* We need to reset basic properties in the decoder related to
1015 resolution (since a standard change effects things like the number
1016 of lines in VACT, etc) */
1017 memset(&mbus_fmt, 0, sizeof(mbus_fmt));
1018 mbus_fmt.code = V4L2_MBUS_FMT_FIXED;
1019 mbus_fmt.width = dev->width;
1020 mbus_fmt.height = dev->height;
1021 call_all(dev, video, s_mbus_fmt, &mbus_fmt);
1022
1023 /* do mode control overrides */
1024 cx231xx_do_mode_ctrl_overrides(dev);
1025
1026 return 0;
1027 }
1028
1029 static const char *iname[] = {
1030 [CX231XX_VMUX_COMPOSITE1] = "Composite1",
1031 [CX231XX_VMUX_SVIDEO] = "S-Video",
1032 [CX231XX_VMUX_TELEVISION] = "Television",
1033 [CX231XX_VMUX_CABLE] = "Cable TV",
1034 [CX231XX_VMUX_DVB] = "DVB",
1035 [CX231XX_VMUX_DEBUG] = "for debug only",
1036 };
1037
1038 int cx231xx_enum_input(struct file *file, void *priv,
1039 struct v4l2_input *i)
1040 {
1041 struct cx231xx_fh *fh = priv;
1042 struct cx231xx *dev = fh->dev;
1043 u32 gen_stat;
1044 unsigned int ret, n;
1045
1046 n = i->index;
1047 if (n >= MAX_CX231XX_INPUT)
1048 return -EINVAL;
1049 if (0 == INPUT(n)->type)
1050 return -EINVAL;
1051
1052 i->index = n;
1053 i->type = V4L2_INPUT_TYPE_CAMERA;
1054
1055 strcpy(i->name, iname[INPUT(n)->type]);
1056
1057 if ((CX231XX_VMUX_TELEVISION == INPUT(n)->type) ||
1058 (CX231XX_VMUX_CABLE == INPUT(n)->type))
1059 i->type = V4L2_INPUT_TYPE_TUNER;
1060
1061 i->std = dev->vdev->tvnorms;
1062
1063 /* If they are asking about the active input, read signal status */
1064 if (n == dev->video_input) {
1065 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1066 GEN_STAT, 2, &gen_stat, 4);
1067 if (ret > 0) {
1068 if ((gen_stat & FLD_VPRES) == 0x00)
1069 i->status |= V4L2_IN_ST_NO_SIGNAL;
1070 if ((gen_stat & FLD_HLOCK) == 0x00)
1071 i->status |= V4L2_IN_ST_NO_H_LOCK;
1072 }
1073 }
1074
1075 return 0;
1076 }
1077
1078 int cx231xx_g_input(struct file *file, void *priv, unsigned int *i)
1079 {
1080 struct cx231xx_fh *fh = priv;
1081 struct cx231xx *dev = fh->dev;
1082
1083 *i = dev->video_input;
1084
1085 return 0;
1086 }
1087
1088 int cx231xx_s_input(struct file *file, void *priv, unsigned int i)
1089 {
1090 struct cx231xx_fh *fh = priv;
1091 struct cx231xx *dev = fh->dev;
1092 int rc;
1093
1094 dev->mode_tv = 0;
1095 rc = check_dev(dev);
1096 if (rc < 0)
1097 return rc;
1098
1099 if (i >= MAX_CX231XX_INPUT)
1100 return -EINVAL;
1101 if (0 == INPUT(i)->type)
1102 return -EINVAL;
1103
1104 video_mux(dev, i);
1105
1106 if (INPUT(i)->type == CX231XX_VMUX_TELEVISION ||
1107 INPUT(i)->type == CX231XX_VMUX_CABLE) {
1108 /* There's a tuner, so reset the standard and put it on the
1109 last known frequency (since it was probably powered down
1110 until now */
1111 call_all(dev, core, s_std, dev->norm);
1112 }
1113
1114 return 0;
1115 }
1116
1117 int cx231xx_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1118 {
1119 struct cx231xx_fh *fh = priv;
1120 struct cx231xx *dev = fh->dev;
1121 int rc;
1122
1123 rc = check_dev(dev);
1124 if (rc < 0)
1125 return rc;
1126
1127 if (0 != t->index)
1128 return -EINVAL;
1129
1130 strcpy(t->name, "Tuner");
1131
1132 t->type = V4L2_TUNER_ANALOG_TV;
1133 t->capability = V4L2_TUNER_CAP_NORM;
1134 t->rangehigh = 0xffffffffUL;
1135 t->signal = 0xffff; /* LOCKED */
1136 call_all(dev, tuner, g_tuner, t);
1137
1138 return 0;
1139 }
1140
1141 int cx231xx_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t)
1142 {
1143 struct cx231xx_fh *fh = priv;
1144 struct cx231xx *dev = fh->dev;
1145 int rc;
1146
1147 rc = check_dev(dev);
1148 if (rc < 0)
1149 return rc;
1150
1151 if (0 != t->index)
1152 return -EINVAL;
1153 #if 0
1154 call_all(dev, tuner, s_tuner, t);
1155 #endif
1156 return 0;
1157 }
1158
1159 int cx231xx_g_frequency(struct file *file, void *priv,
1160 struct v4l2_frequency *f)
1161 {
1162 struct cx231xx_fh *fh = priv;
1163 struct cx231xx *dev = fh->dev;
1164
1165 if (f->tuner)
1166 return -EINVAL;
1167
1168 f->frequency = dev->ctl_freq;
1169
1170 return 0;
1171 }
1172
1173 int cx231xx_s_frequency(struct file *file, void *priv,
1174 const struct v4l2_frequency *f)
1175 {
1176 struct cx231xx_fh *fh = priv;
1177 struct cx231xx *dev = fh->dev;
1178 struct v4l2_frequency new_freq = *f;
1179 int rc;
1180 u32 if_frequency = 5400000;
1181
1182 cx231xx_info("Enter vidioc_s_frequency()f->frequency=%d;f->type=%d\n",
1183 f->frequency, f->type);
1184 /*cx231xx_info("f->type: 1-radio 2-analogTV 3-digitalTV\n");*/
1185
1186 rc = check_dev(dev);
1187 if (rc < 0)
1188 return rc;
1189
1190 if (0 != f->tuner)
1191 return -EINVAL;
1192
1193 /* set pre channel change settings in DIF first */
1194 rc = cx231xx_tuner_pre_channel_change(dev);
1195
1196 call_all(dev, tuner, s_frequency, f);
1197 call_all(dev, tuner, g_frequency, &new_freq);
1198 dev->ctl_freq = new_freq.frequency;
1199
1200 /* set post channel change settings in DIF first */
1201 rc = cx231xx_tuner_post_channel_change(dev);
1202
1203 if (dev->tuner_type == TUNER_NXP_TDA18271) {
1204 if (dev->norm & (V4L2_STD_MN | V4L2_STD_NTSC_443))
1205 if_frequency = 5400000; /*5.4MHz */
1206 else if (dev->norm & V4L2_STD_B)
1207 if_frequency = 6000000; /*6.0MHz */
1208 else if (dev->norm & (V4L2_STD_PAL_DK | V4L2_STD_SECAM_DK))
1209 if_frequency = 6900000; /*6.9MHz */
1210 else if (dev->norm & V4L2_STD_GH)
1211 if_frequency = 7100000; /*7.1MHz */
1212 else if (dev->norm & V4L2_STD_PAL_I)
1213 if_frequency = 7250000; /*7.25MHz */
1214 else if (dev->norm & V4L2_STD_SECAM_L)
1215 if_frequency = 6900000; /*6.9MHz */
1216 else if (dev->norm & V4L2_STD_SECAM_LC)
1217 if_frequency = 1250000; /*1.25MHz */
1218
1219 cx231xx_info("if_frequency is set to %d\n", if_frequency);
1220 cx231xx_set_Colibri_For_LowIF(dev, if_frequency, 1, 1);
1221
1222 update_HH_register_after_set_DIF(dev);
1223 }
1224
1225 cx231xx_info("Set New FREQUENCY to %d\n", f->frequency);
1226
1227 return rc;
1228 }
1229
1230 #ifdef CONFIG_VIDEO_ADV_DEBUG
1231
1232 int cx231xx_g_chip_info(struct file *file, void *fh,
1233 struct v4l2_dbg_chip_info *chip)
1234 {
1235 switch (chip->match.addr) {
1236 case 0: /* Cx231xx - internal registers */
1237 return 0;
1238 case 1: /* AFE - read byte */
1239 strlcpy(chip->name, "AFE (byte)", sizeof(chip->name));
1240 return 0;
1241 case 2: /* Video Block - read byte */
1242 strlcpy(chip->name, "Video (byte)", sizeof(chip->name));
1243 return 0;
1244 case 3: /* I2S block - read byte */
1245 strlcpy(chip->name, "I2S (byte)", sizeof(chip->name));
1246 return 0;
1247 case 4: /* AFE - read dword */
1248 strlcpy(chip->name, "AFE (dword)", sizeof(chip->name));
1249 return 0;
1250 case 5: /* Video Block - read dword */
1251 strlcpy(chip->name, "Video (dword)", sizeof(chip->name));
1252 return 0;
1253 case 6: /* I2S Block - read dword */
1254 strlcpy(chip->name, "I2S (dword)", sizeof(chip->name));
1255 return 0;
1256 }
1257 return -EINVAL;
1258 }
1259
1260 int cx231xx_g_register(struct file *file, void *priv,
1261 struct v4l2_dbg_register *reg)
1262 {
1263 struct cx231xx_fh *fh = priv;
1264 struct cx231xx *dev = fh->dev;
1265 int ret;
1266 u8 value[4] = { 0, 0, 0, 0 };
1267 u32 data = 0;
1268
1269 switch (reg->match.addr) {
1270 case 0: /* Cx231xx - internal registers */
1271 ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
1272 (u16)reg->reg, value, 4);
1273 reg->val = value[0] | value[1] << 8 |
1274 value[2] << 16 | value[3] << 24;
1275 reg->size = 4;
1276 break;
1277 case 1: /* AFE - read byte */
1278 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1279 (u16)reg->reg, 2, &data, 1);
1280 reg->val = data;
1281 reg->size = 1;
1282 break;
1283 case 2: /* Video Block - read byte */
1284 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1285 (u16)reg->reg, 2, &data, 1);
1286 reg->val = data;
1287 reg->size = 1;
1288 break;
1289 case 3: /* I2S block - read byte */
1290 ret = cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1291 (u16)reg->reg, 1, &data, 1);
1292 reg->val = data;
1293 reg->size = 1;
1294 break;
1295 case 4: /* AFE - read dword */
1296 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1297 (u16)reg->reg, 2, &data, 4);
1298 reg->val = data;
1299 reg->size = 4;
1300 break;
1301 case 5: /* Video Block - read dword */
1302 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1303 (u16)reg->reg, 2, &data, 4);
1304 reg->val = data;
1305 reg->size = 4;
1306 break;
1307 case 6: /* I2S Block - read dword */
1308 ret = cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1309 (u16)reg->reg, 1, &data, 4);
1310 reg->val = data;
1311 reg->size = 4;
1312 break;
1313 default:
1314 return -EINVAL;
1315 }
1316 return ret < 0 ? ret : 0;
1317 }
1318
1319 int cx231xx_s_register(struct file *file, void *priv,
1320 const struct v4l2_dbg_register *reg)
1321 {
1322 struct cx231xx_fh *fh = priv;
1323 struct cx231xx *dev = fh->dev;
1324 int ret;
1325 u8 data[4] = { 0, 0, 0, 0 };
1326
1327 switch (reg->match.addr) {
1328 case 0: /* cx231xx internal registers */
1329 data[0] = (u8) reg->val;
1330 data[1] = (u8) (reg->val >> 8);
1331 data[2] = (u8) (reg->val >> 16);
1332 data[3] = (u8) (reg->val >> 24);
1333 ret = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1334 (u16)reg->reg, data, 4);
1335 break;
1336 case 1: /* AFE - write byte */
1337 ret = cx231xx_write_i2c_data(dev, AFE_DEVICE_ADDRESS,
1338 (u16)reg->reg, 2, reg->val, 1);
1339 break;
1340 case 2: /* Video Block - write byte */
1341 ret = cx231xx_write_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1342 (u16)reg->reg, 2, reg->val, 1);
1343 break;
1344 case 3: /* I2S block - write byte */
1345 ret = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1346 (u16)reg->reg, 1, reg->val, 1);
1347 break;
1348 case 4: /* AFE - write dword */
1349 ret = cx231xx_write_i2c_data(dev, AFE_DEVICE_ADDRESS,
1350 (u16)reg->reg, 2, reg->val, 4);
1351 break;
1352 case 5: /* Video Block - write dword */
1353 ret = cx231xx_write_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1354 (u16)reg->reg, 2, reg->val, 4);
1355 break;
1356 case 6: /* I2S block - write dword */
1357 ret = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1358 (u16)reg->reg, 1, reg->val, 4);
1359 break;
1360 default:
1361 return -EINVAL;
1362 }
1363 return ret < 0 ? ret : 0;
1364 }
1365 #endif
1366
1367 static int vidioc_cropcap(struct file *file, void *priv,
1368 struct v4l2_cropcap *cc)
1369 {
1370 struct cx231xx_fh *fh = priv;
1371 struct cx231xx *dev = fh->dev;
1372
1373 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1374 return -EINVAL;
1375
1376 cc->bounds.left = 0;
1377 cc->bounds.top = 0;
1378 cc->bounds.width = dev->width;
1379 cc->bounds.height = dev->height;
1380 cc->defrect = cc->bounds;
1381 cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */
1382 cc->pixelaspect.denominator = 59;
1383
1384 return 0;
1385 }
1386
1387 static int vidioc_streamon(struct file *file, void *priv,
1388 enum v4l2_buf_type type)
1389 {
1390 struct cx231xx_fh *fh = priv;
1391 struct cx231xx *dev = fh->dev;
1392 int rc;
1393
1394 rc = check_dev(dev);
1395 if (rc < 0)
1396 return rc;
1397
1398 rc = res_get(fh);
1399
1400 if (likely(rc >= 0))
1401 rc = videobuf_streamon(&fh->vb_vidq);
1402
1403 call_all(dev, video, s_stream, 1);
1404
1405 return rc;
1406 }
1407
1408 static int vidioc_streamoff(struct file *file, void *priv,
1409 enum v4l2_buf_type type)
1410 {
1411 struct cx231xx_fh *fh = priv;
1412 struct cx231xx *dev = fh->dev;
1413 int rc;
1414
1415 rc = check_dev(dev);
1416 if (rc < 0)
1417 return rc;
1418
1419 if (type != fh->type)
1420 return -EINVAL;
1421
1422 cx25840_call(dev, video, s_stream, 0);
1423
1424 videobuf_streamoff(&fh->vb_vidq);
1425 res_free(fh);
1426
1427 return 0;
1428 }
1429
1430 int cx231xx_querycap(struct file *file, void *priv,
1431 struct v4l2_capability *cap)
1432 {
1433 struct video_device *vdev = video_devdata(file);
1434 struct cx231xx_fh *fh = priv;
1435 struct cx231xx *dev = fh->dev;
1436
1437 strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
1438 strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
1439 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
1440
1441 if (vdev->vfl_type == VFL_TYPE_RADIO)
1442 cap->device_caps = V4L2_CAP_RADIO;
1443 else {
1444 cap->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
1445 if (vdev->vfl_type == VFL_TYPE_VBI)
1446 cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
1447 else
1448 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
1449 }
1450 if (dev->tuner_type != TUNER_ABSENT)
1451 cap->device_caps |= V4L2_CAP_TUNER;
1452 cap->capabilities = cap->device_caps | V4L2_CAP_READWRITE |
1453 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE |
1454 V4L2_CAP_STREAMING | V4L2_CAP_DEVICE_CAPS;
1455 if (dev->radio_dev)
1456 cap->capabilities |= V4L2_CAP_RADIO;
1457
1458 return 0;
1459 }
1460
1461 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1462 struct v4l2_fmtdesc *f)
1463 {
1464 if (unlikely(f->index >= ARRAY_SIZE(format)))
1465 return -EINVAL;
1466
1467 strlcpy(f->description, format[f->index].name, sizeof(f->description));
1468 f->pixelformat = format[f->index].fourcc;
1469
1470 return 0;
1471 }
1472
1473 /* RAW VBI ioctls */
1474
1475 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1476 struct v4l2_format *f)
1477 {
1478 struct cx231xx_fh *fh = priv;
1479 struct cx231xx *dev = fh->dev;
1480
1481 f->fmt.vbi.sampling_rate = 6750000 * 4;
1482 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1483 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1484 f->fmt.vbi.offset = 0;
1485 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1486 PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1487 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1488 PAL_VBI_LINES : NTSC_VBI_LINES;
1489 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1490 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1491 f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1492 memset(f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
1493
1494 return 0;
1495
1496 }
1497
1498 static int vidioc_try_fmt_vbi_cap(struct file *file, void *priv,
1499 struct v4l2_format *f)
1500 {
1501 struct cx231xx_fh *fh = priv;
1502 struct cx231xx *dev = fh->dev;
1503
1504 f->fmt.vbi.sampling_rate = 6750000 * 4;
1505 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1506 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1507 f->fmt.vbi.offset = 0;
1508 f->fmt.vbi.flags = 0;
1509 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1510 PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1511 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1512 PAL_VBI_LINES : NTSC_VBI_LINES;
1513 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1514 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1515 f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1516 memset(f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
1517
1518 return 0;
1519
1520 }
1521
1522 static int vidioc_s_fmt_vbi_cap(struct file *file, void *priv,
1523 struct v4l2_format *f)
1524 {
1525 struct cx231xx_fh *fh = priv;
1526 struct cx231xx *dev = fh->dev;
1527
1528 if (dev->vbi_stream_on && !fh->stream_on) {
1529 cx231xx_errdev("%s device in use by another fh\n", __func__);
1530 return -EBUSY;
1531 }
1532 return vidioc_try_fmt_vbi_cap(file, priv, f);
1533 }
1534
1535 static int vidioc_reqbufs(struct file *file, void *priv,
1536 struct v4l2_requestbuffers *rb)
1537 {
1538 struct cx231xx_fh *fh = priv;
1539 struct cx231xx *dev = fh->dev;
1540 int rc;
1541
1542 rc = check_dev(dev);
1543 if (rc < 0)
1544 return rc;
1545
1546 return videobuf_reqbufs(&fh->vb_vidq, rb);
1547 }
1548
1549 static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *b)
1550 {
1551 struct cx231xx_fh *fh = priv;
1552 struct cx231xx *dev = fh->dev;
1553 int rc;
1554
1555 rc = check_dev(dev);
1556 if (rc < 0)
1557 return rc;
1558
1559 return videobuf_querybuf(&fh->vb_vidq, b);
1560 }
1561
1562 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
1563 {
1564 struct cx231xx_fh *fh = priv;
1565 struct cx231xx *dev = fh->dev;
1566 int rc;
1567
1568 rc = check_dev(dev);
1569 if (rc < 0)
1570 return rc;
1571
1572 return videobuf_qbuf(&fh->vb_vidq, b);
1573 }
1574
1575 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
1576 {
1577 struct cx231xx_fh *fh = priv;
1578 struct cx231xx *dev = fh->dev;
1579 int rc;
1580
1581 rc = check_dev(dev);
1582 if (rc < 0)
1583 return rc;
1584
1585 return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK);
1586 }
1587
1588 /* ----------------------------------------------------------- */
1589 /* RADIO ESPECIFIC IOCTLS */
1590 /* ----------------------------------------------------------- */
1591
1592 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1593 {
1594 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
1595
1596 if (t->index)
1597 return -EINVAL;
1598
1599 strcpy(t->name, "Radio");
1600
1601 call_all(dev, tuner, g_tuner, t);
1602
1603 return 0;
1604 }
1605 static int radio_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t)
1606 {
1607 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
1608
1609 if (t->index)
1610 return -EINVAL;
1611
1612 call_all(dev, tuner, s_tuner, t);
1613
1614 return 0;
1615 }
1616
1617 /*
1618 * cx231xx_v4l2_open()
1619 * inits the device and starts isoc transfer
1620 */
1621 static int cx231xx_v4l2_open(struct file *filp)
1622 {
1623 int errCode = 0, radio = 0;
1624 struct video_device *vdev = video_devdata(filp);
1625 struct cx231xx *dev = video_drvdata(filp);
1626 struct cx231xx_fh *fh;
1627 enum v4l2_buf_type fh_type = 0;
1628
1629 switch (vdev->vfl_type) {
1630 case VFL_TYPE_GRABBER:
1631 fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1632 break;
1633 case VFL_TYPE_VBI:
1634 fh_type = V4L2_BUF_TYPE_VBI_CAPTURE;
1635 break;
1636 case VFL_TYPE_RADIO:
1637 radio = 1;
1638 break;
1639 }
1640
1641 cx231xx_videodbg("open dev=%s type=%s users=%d\n",
1642 video_device_node_name(vdev), v4l2_type_names[fh_type],
1643 dev->users);
1644
1645 #if 0
1646 errCode = cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
1647 if (errCode < 0) {
1648 cx231xx_errdev
1649 ("Device locked on digital mode. Can't open analog\n");
1650 return -EBUSY;
1651 }
1652 #endif
1653
1654 fh = kzalloc(sizeof(struct cx231xx_fh), GFP_KERNEL);
1655 if (!fh) {
1656 cx231xx_errdev("cx231xx-video.c: Out of memory?!\n");
1657 return -ENOMEM;
1658 }
1659 if (mutex_lock_interruptible(&dev->lock)) {
1660 kfree(fh);
1661 return -ERESTARTSYS;
1662 }
1663 fh->dev = dev;
1664 fh->type = fh_type;
1665 filp->private_data = fh;
1666 v4l2_fh_init(&fh->fh, vdev);
1667
1668 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
1669 /* Power up in Analog TV mode */
1670 if (dev->board.external_av)
1671 cx231xx_set_power_mode(dev,
1672 POLARIS_AVMODE_ENXTERNAL_AV);
1673 else
1674 cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV);
1675
1676 #if 0
1677 cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
1678 #endif
1679
1680 /* set video alternate setting */
1681 cx231xx_set_video_alternate(dev);
1682
1683 /* Needed, since GPIO might have disabled power of
1684 some i2c device */
1685 cx231xx_config_i2c(dev);
1686
1687 /* device needs to be initialized before isoc transfer */
1688 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1689
1690 }
1691 if (radio) {
1692 cx231xx_videodbg("video_open: setting radio device\n");
1693
1694 /* cx231xx_start_radio(dev); */
1695
1696 call_all(dev, tuner, s_radio);
1697 }
1698
1699 dev->users++;
1700
1701 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1702 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_video_qops,
1703 NULL, &dev->video_mode.slock,
1704 fh->type, V4L2_FIELD_INTERLACED,
1705 sizeof(struct cx231xx_buffer),
1706 fh, &dev->lock);
1707 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
1708 /* Set the required alternate setting VBI interface works in
1709 Bulk mode only */
1710 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1711
1712 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_vbi_qops,
1713 NULL, &dev->vbi_mode.slock,
1714 fh->type, V4L2_FIELD_SEQ_TB,
1715 sizeof(struct cx231xx_buffer),
1716 fh, &dev->lock);
1717 }
1718 mutex_unlock(&dev->lock);
1719 v4l2_fh_add(&fh->fh);
1720
1721 return errCode;
1722 }
1723
1724 /*
1725 * cx231xx_realease_resources()
1726 * unregisters the v4l2,i2c and usb devices
1727 * called when the device gets disconected or at module unload
1728 */
1729 void cx231xx_release_analog_resources(struct cx231xx *dev)
1730 {
1731
1732 /*FIXME: I2C IR should be disconnected */
1733
1734 if (dev->radio_dev) {
1735 if (video_is_registered(dev->radio_dev))
1736 video_unregister_device(dev->radio_dev);
1737 else
1738 video_device_release(dev->radio_dev);
1739 dev->radio_dev = NULL;
1740 }
1741 if (dev->vbi_dev) {
1742 cx231xx_info("V4L2 device %s deregistered\n",
1743 video_device_node_name(dev->vbi_dev));
1744 if (video_is_registered(dev->vbi_dev))
1745 video_unregister_device(dev->vbi_dev);
1746 else
1747 video_device_release(dev->vbi_dev);
1748 dev->vbi_dev = NULL;
1749 }
1750 if (dev->vdev) {
1751 cx231xx_info("V4L2 device %s deregistered\n",
1752 video_device_node_name(dev->vdev));
1753
1754 if (dev->board.has_417)
1755 cx231xx_417_unregister(dev);
1756
1757 if (video_is_registered(dev->vdev))
1758 video_unregister_device(dev->vdev);
1759 else
1760 video_device_release(dev->vdev);
1761 dev->vdev = NULL;
1762 }
1763 v4l2_ctrl_handler_free(&dev->ctrl_handler);
1764 v4l2_ctrl_handler_free(&dev->radio_ctrl_handler);
1765 }
1766
1767 /*
1768 * cx231xx_close()
1769 * stops streaming and deallocates all resources allocated by the v4l2
1770 * calls and ioctls
1771 */
1772 static int cx231xx_close(struct file *filp)
1773 {
1774 struct cx231xx_fh *fh = filp->private_data;
1775 struct cx231xx *dev = fh->dev;
1776
1777 cx231xx_videodbg("users=%d\n", dev->users);
1778
1779 cx231xx_videodbg("users=%d\n", dev->users);
1780 if (res_check(fh))
1781 res_free(fh);
1782
1783 /*
1784 * To workaround error number=-71 on EP0 for VideoGrabber,
1785 * need exclude following.
1786 * FIXME: It is probably safe to remove most of these, as we're
1787 * now avoiding the alternate setting for INDEX_VANC
1788 */
1789 if (!dev->board.no_alt_vanc)
1790 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
1791 videobuf_stop(&fh->vb_vidq);
1792 videobuf_mmap_free(&fh->vb_vidq);
1793
1794 /* the device is already disconnect,
1795 free the remaining resources */
1796 if (dev->state & DEV_DISCONNECTED) {
1797 if (atomic_read(&dev->devlist_count) > 0) {
1798 cx231xx_release_resources(dev);
1799 fh->dev = NULL;
1800 return 0;
1801 }
1802 return 0;
1803 }
1804
1805 /* do this before setting alternate! */
1806 cx231xx_uninit_vbi_isoc(dev);
1807
1808 /* set alternate 0 */
1809 if (!dev->vbi_or_sliced_cc_mode)
1810 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1811 else
1812 cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1813
1814 v4l2_fh_del(&fh->fh);
1815 v4l2_fh_exit(&fh->fh);
1816 kfree(fh);
1817 dev->users--;
1818 wake_up_interruptible_nr(&dev->open, 1);
1819 return 0;
1820 }
1821
1822 v4l2_fh_del(&fh->fh);
1823 dev->users--;
1824 if (!dev->users) {
1825 videobuf_stop(&fh->vb_vidq);
1826 videobuf_mmap_free(&fh->vb_vidq);
1827
1828 /* the device is already disconnect,
1829 free the remaining resources */
1830 if (dev->state & DEV_DISCONNECTED) {
1831 cx231xx_release_resources(dev);
1832 fh->dev = NULL;
1833 return 0;
1834 }
1835
1836 /* Save some power by putting tuner to sleep */
1837 call_all(dev, core, s_power, 0);
1838
1839 /* do this before setting alternate! */
1840 if (dev->USE_ISO)
1841 cx231xx_uninit_isoc(dev);
1842 else
1843 cx231xx_uninit_bulk(dev);
1844 cx231xx_set_mode(dev, CX231XX_SUSPEND);
1845
1846 /* set alternate 0 */
1847 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1848 }
1849 v4l2_fh_exit(&fh->fh);
1850 kfree(fh);
1851 wake_up_interruptible_nr(&dev->open, 1);
1852 return 0;
1853 }
1854
1855 static int cx231xx_v4l2_close(struct file *filp)
1856 {
1857 struct cx231xx_fh *fh = filp->private_data;
1858 struct cx231xx *dev = fh->dev;
1859 int rc;
1860
1861 mutex_lock(&dev->lock);
1862 rc = cx231xx_close(filp);
1863 mutex_unlock(&dev->lock);
1864 return rc;
1865 }
1866
1867 /*
1868 * cx231xx_v4l2_read()
1869 * will allocate buffers when called for the first time
1870 */
1871 static ssize_t
1872 cx231xx_v4l2_read(struct file *filp, char __user *buf, size_t count,
1873 loff_t *pos)
1874 {
1875 struct cx231xx_fh *fh = filp->private_data;
1876 struct cx231xx *dev = fh->dev;
1877 int rc;
1878
1879 rc = check_dev(dev);
1880 if (rc < 0)
1881 return rc;
1882
1883 if ((fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
1884 (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)) {
1885 rc = res_get(fh);
1886
1887 if (unlikely(rc < 0))
1888 return rc;
1889
1890 if (mutex_lock_interruptible(&dev->lock))
1891 return -ERESTARTSYS;
1892 rc = videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0,
1893 filp->f_flags & O_NONBLOCK);
1894 mutex_unlock(&dev->lock);
1895 return rc;
1896 }
1897 return 0;
1898 }
1899
1900 /*
1901 * cx231xx_v4l2_poll()
1902 * will allocate buffers when called for the first time
1903 */
1904 static unsigned int cx231xx_v4l2_poll(struct file *filp, poll_table *wait)
1905 {
1906 unsigned long req_events = poll_requested_events(wait);
1907 struct cx231xx_fh *fh = filp->private_data;
1908 struct cx231xx *dev = fh->dev;
1909 unsigned res = 0;
1910 int rc;
1911
1912 rc = check_dev(dev);
1913 if (rc < 0)
1914 return POLLERR;
1915
1916 rc = res_get(fh);
1917
1918 if (unlikely(rc < 0))
1919 return POLLERR;
1920
1921 if (v4l2_event_pending(&fh->fh))
1922 res |= POLLPRI;
1923 else
1924 poll_wait(filp, &fh->fh.wait, wait);
1925
1926 if (!(req_events & (POLLIN | POLLRDNORM)))
1927 return res;
1928
1929 if ((V4L2_BUF_TYPE_VIDEO_CAPTURE == fh->type) ||
1930 (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type)) {
1931 mutex_lock(&dev->lock);
1932 res |= videobuf_poll_stream(filp, &fh->vb_vidq, wait);
1933 mutex_unlock(&dev->lock);
1934 return res;
1935 }
1936 return res | POLLERR;
1937 }
1938
1939 /*
1940 * cx231xx_v4l2_mmap()
1941 */
1942 static int cx231xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
1943 {
1944 struct cx231xx_fh *fh = filp->private_data;
1945 struct cx231xx *dev = fh->dev;
1946 int rc;
1947
1948 rc = check_dev(dev);
1949 if (rc < 0)
1950 return rc;
1951
1952 rc = res_get(fh);
1953
1954 if (unlikely(rc < 0))
1955 return rc;
1956
1957 if (mutex_lock_interruptible(&dev->lock))
1958 return -ERESTARTSYS;
1959 rc = videobuf_mmap_mapper(&fh->vb_vidq, vma);
1960 mutex_unlock(&dev->lock);
1961
1962 cx231xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n",
1963 (unsigned long)vma->vm_start,
1964 (unsigned long)vma->vm_end -
1965 (unsigned long)vma->vm_start, rc);
1966
1967 return rc;
1968 }
1969
1970 static const struct v4l2_file_operations cx231xx_v4l_fops = {
1971 .owner = THIS_MODULE,
1972 .open = cx231xx_v4l2_open,
1973 .release = cx231xx_v4l2_close,
1974 .read = cx231xx_v4l2_read,
1975 .poll = cx231xx_v4l2_poll,
1976 .mmap = cx231xx_v4l2_mmap,
1977 .unlocked_ioctl = video_ioctl2,
1978 };
1979
1980 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1981 .vidioc_querycap = cx231xx_querycap,
1982 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1983 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1984 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1985 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1986 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1987 .vidioc_try_fmt_vbi_cap = vidioc_try_fmt_vbi_cap,
1988 .vidioc_s_fmt_vbi_cap = vidioc_s_fmt_vbi_cap,
1989 .vidioc_cropcap = vidioc_cropcap,
1990 .vidioc_reqbufs = vidioc_reqbufs,
1991 .vidioc_querybuf = vidioc_querybuf,
1992 .vidioc_qbuf = vidioc_qbuf,
1993 .vidioc_dqbuf = vidioc_dqbuf,
1994 .vidioc_s_std = vidioc_s_std,
1995 .vidioc_g_std = vidioc_g_std,
1996 .vidioc_enum_input = cx231xx_enum_input,
1997 .vidioc_g_input = cx231xx_g_input,
1998 .vidioc_s_input = cx231xx_s_input,
1999 .vidioc_streamon = vidioc_streamon,
2000 .vidioc_streamoff = vidioc_streamoff,
2001 .vidioc_g_tuner = cx231xx_g_tuner,
2002 .vidioc_s_tuner = cx231xx_s_tuner,
2003 .vidioc_g_frequency = cx231xx_g_frequency,
2004 .vidioc_s_frequency = cx231xx_s_frequency,
2005 #ifdef CONFIG_VIDEO_ADV_DEBUG
2006 .vidioc_g_chip_info = cx231xx_g_chip_info,
2007 .vidioc_g_register = cx231xx_g_register,
2008 .vidioc_s_register = cx231xx_s_register,
2009 #endif
2010 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
2011 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
2012 };
2013
2014 static struct video_device cx231xx_vbi_template;
2015
2016 static const struct video_device cx231xx_video_template = {
2017 .fops = &cx231xx_v4l_fops,
2018 .release = video_device_release,
2019 .ioctl_ops = &video_ioctl_ops,
2020 .tvnorms = V4L2_STD_ALL,
2021 };
2022
2023 static const struct v4l2_file_operations radio_fops = {
2024 .owner = THIS_MODULE,
2025 .open = cx231xx_v4l2_open,
2026 .release = cx231xx_v4l2_close,
2027 .poll = v4l2_ctrl_poll,
2028 .unlocked_ioctl = video_ioctl2,
2029 };
2030
2031 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
2032 .vidioc_querycap = cx231xx_querycap,
2033 .vidioc_g_tuner = radio_g_tuner,
2034 .vidioc_s_tuner = radio_s_tuner,
2035 .vidioc_g_frequency = cx231xx_g_frequency,
2036 .vidioc_s_frequency = cx231xx_s_frequency,
2037 #ifdef CONFIG_VIDEO_ADV_DEBUG
2038 .vidioc_g_chip_info = cx231xx_g_chip_info,
2039 .vidioc_g_register = cx231xx_g_register,
2040 .vidioc_s_register = cx231xx_s_register,
2041 #endif
2042 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
2043 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
2044 };
2045
2046 static struct video_device cx231xx_radio_template = {
2047 .name = "cx231xx-radio",
2048 .fops = &radio_fops,
2049 .ioctl_ops = &radio_ioctl_ops,
2050 };
2051
2052 /******************************** usb interface ******************************/
2053
2054 static struct video_device *cx231xx_vdev_init(struct cx231xx *dev,
2055 const struct video_device
2056 *template, const char *type_name)
2057 {
2058 struct video_device *vfd;
2059
2060 vfd = video_device_alloc();
2061 if (NULL == vfd)
2062 return NULL;
2063
2064 *vfd = *template;
2065 vfd->v4l2_dev = &dev->v4l2_dev;
2066 vfd->release = video_device_release;
2067 vfd->debug = video_debug;
2068 vfd->lock = &dev->lock;
2069 set_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags);
2070
2071 snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
2072
2073 video_set_drvdata(vfd, dev);
2074 if (dev->tuner_type == TUNER_ABSENT) {
2075 v4l2_disable_ioctl(vfd, VIDIOC_G_FREQUENCY);
2076 v4l2_disable_ioctl(vfd, VIDIOC_S_FREQUENCY);
2077 v4l2_disable_ioctl(vfd, VIDIOC_G_TUNER);
2078 v4l2_disable_ioctl(vfd, VIDIOC_S_TUNER);
2079 }
2080 return vfd;
2081 }
2082
2083 int cx231xx_register_analog_devices(struct cx231xx *dev)
2084 {
2085 int ret;
2086
2087 cx231xx_info("%s: v4l2 driver version %s\n",
2088 dev->name, CX231XX_VERSION);
2089
2090 /* set default norm */
2091 dev->norm = V4L2_STD_PAL;
2092 dev->width = norm_maxw(dev);
2093 dev->height = norm_maxh(dev);
2094 dev->interlaced = 0;
2095
2096 /* Analog specific initialization */
2097 dev->format = &format[0];
2098
2099 /* Set the initial input */
2100 video_mux(dev, dev->video_input);
2101
2102 call_all(dev, core, s_std, dev->norm);
2103
2104 v4l2_ctrl_handler_init(&dev->ctrl_handler, 10);
2105 v4l2_ctrl_handler_init(&dev->radio_ctrl_handler, 5);
2106
2107 if (dev->sd_cx25840) {
2108 v4l2_ctrl_add_handler(&dev->ctrl_handler,
2109 dev->sd_cx25840->ctrl_handler, NULL);
2110 v4l2_ctrl_add_handler(&dev->radio_ctrl_handler,
2111 dev->sd_cx25840->ctrl_handler,
2112 v4l2_ctrl_radio_filter);
2113 }
2114
2115 if (dev->ctrl_handler.error)
2116 return dev->ctrl_handler.error;
2117 if (dev->radio_ctrl_handler.error)
2118 return dev->radio_ctrl_handler.error;
2119
2120 /* enable vbi capturing */
2121 /* write code here... */
2122
2123 /* allocate and fill video video_device struct */
2124 dev->vdev = cx231xx_vdev_init(dev, &cx231xx_video_template, "video");
2125 if (!dev->vdev) {
2126 cx231xx_errdev("cannot allocate video_device.\n");
2127 return -ENODEV;
2128 }
2129
2130 dev->vdev->ctrl_handler = &dev->ctrl_handler;
2131 /* register v4l2 video video_device */
2132 ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
2133 video_nr[dev->devno]);
2134 if (ret) {
2135 cx231xx_errdev("unable to register video device (error=%i).\n",
2136 ret);
2137 return ret;
2138 }
2139
2140 cx231xx_info("%s/0: registered device %s [v4l2]\n",
2141 dev->name, video_device_node_name(dev->vdev));
2142
2143 /* Initialize VBI template */
2144 cx231xx_vbi_template = cx231xx_video_template;
2145 strcpy(cx231xx_vbi_template.name, "cx231xx-vbi");
2146
2147 /* Allocate and fill vbi video_device struct */
2148 dev->vbi_dev = cx231xx_vdev_init(dev, &cx231xx_vbi_template, "vbi");
2149
2150 if (!dev->vbi_dev) {
2151 cx231xx_errdev("cannot allocate video_device.\n");
2152 return -ENODEV;
2153 }
2154 dev->vbi_dev->ctrl_handler = &dev->ctrl_handler;
2155 /* register v4l2 vbi video_device */
2156 ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
2157 vbi_nr[dev->devno]);
2158 if (ret < 0) {
2159 cx231xx_errdev("unable to register vbi device\n");
2160 return ret;
2161 }
2162
2163 cx231xx_info("%s/0: registered device %s\n",
2164 dev->name, video_device_node_name(dev->vbi_dev));
2165
2166 if (cx231xx_boards[dev->model].radio.type == CX231XX_RADIO) {
2167 dev->radio_dev = cx231xx_vdev_init(dev, &cx231xx_radio_template,
2168 "radio");
2169 if (!dev->radio_dev) {
2170 cx231xx_errdev("cannot allocate video_device.\n");
2171 return -ENODEV;
2172 }
2173 dev->radio_dev->ctrl_handler = &dev->radio_ctrl_handler;
2174 ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
2175 radio_nr[dev->devno]);
2176 if (ret < 0) {
2177 cx231xx_errdev("can't register radio device\n");
2178 return ret;
2179 }
2180 cx231xx_info("Registered radio device as %s\n",
2181 video_device_node_name(dev->radio_dev));
2182 }
2183
2184 cx231xx_info("V4L2 device registered as %s and %s\n",
2185 video_device_node_name(dev->vdev),
2186 video_device_node_name(dev->vbi_dev));
2187
2188 return 0;
2189 }
CRIS linux kernel tree