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