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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-chip-ident.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
57static unsigned int isoc_debug;
58module_param(isoc_debug, int, 0644);
59MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
60
61#define cx231xx_isocdbg(fmt, arg...) \
62do {\
63 if (isoc_debug) { \
64 printk(KERN_INFO "%s %s :"fmt, \
65 dev->name, __func__ , ##arg); \
66 } \
67 } while (0)
68
69MODULE_AUTHOR(DRIVER_AUTHOR);
70MODULE_DESCRIPTION(DRIVER_DESC);
71MODULE_LICENSE("GPL");
72MODULE_VERSION(CX231XX_VERSION);
73
74static unsigned int card[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
75static unsigned int video_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
76static unsigned int vbi_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
77static unsigned int radio_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
78
79module_param_array(card, int, NULL, 0444);
80module_param_array(video_nr, int, NULL, 0444);
81module_param_array(vbi_nr, int, NULL, 0444);
82module_param_array(radio_nr, int, NULL, 0444);
83
84MODULE_PARM_DESC(card, "card type");
85MODULE_PARM_DESC(video_nr, "video device numbers");
86MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
87MODULE_PARM_DESC(radio_nr, "radio device numbers");
88
89static unsigned int video_debug;
90module_param(video_debug, int, 0644);
91MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
92
93/* supported video standards */
94static 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/* supported controls */
104/* Common to all boards */
105
106/* ------------------------------------------------------------------- */
107
108static const struct v4l2_queryctrl no_ctl = {
109 .name = "42",
110 .flags = V4L2_CTRL_FLAG_DISABLED,
111};
112
113static struct cx231xx_ctrl cx231xx_ctls[] = {
114 /* --- video --- */
115 {
116 .v = {
117 .id = V4L2_CID_BRIGHTNESS,
118 .name = "Brightness",
119 .minimum = 0x00,
120 .maximum = 0xff,
121 .step = 1,
122 .default_value = 0x7f,
123 .type = V4L2_CTRL_TYPE_INTEGER,
124 },
125 .off = 128,
126 .reg = LUMA_CTRL,
127 .mask = 0x00ff,
128 .shift = 0,
129 }, {
130 .v = {
131 .id = V4L2_CID_CONTRAST,
132 .name = "Contrast",
133 .minimum = 0,
134 .maximum = 0xff,
135 .step = 1,
136 .default_value = 0x3f,
137 .type = V4L2_CTRL_TYPE_INTEGER,
138 },
139 .off = 0,
140 .reg = LUMA_CTRL,
141 .mask = 0xff00,
142 .shift = 8,
143 }, {
144 .v = {
145 .id = V4L2_CID_HUE,
146 .name = "Hue",
147 .minimum = 0,
148 .maximum = 0xff,
149 .step = 1,
150 .default_value = 0x7f,
151 .type = V4L2_CTRL_TYPE_INTEGER,
152 },
153 .off = 128,
154 .reg = CHROMA_CTRL,
155 .mask = 0xff0000,
156 .shift = 16,
157 }, {
158 /* strictly, this only describes only U saturation.
159 * V saturation is handled specially through code.
160 */
161 .v = {
162 .id = V4L2_CID_SATURATION,
163 .name = "Saturation",
164 .minimum = 0,
165 .maximum = 0xff,
166 .step = 1,
167 .default_value = 0x7f,
168 .type = V4L2_CTRL_TYPE_INTEGER,
169 },
170 .off = 0,
171 .reg = CHROMA_CTRL,
172 .mask = 0x00ff,
173 .shift = 0,
174 }, {
175 /* --- audio --- */
176 .v = {
177 .id = V4L2_CID_AUDIO_MUTE,
178 .name = "Mute",
179 .minimum = 0,
180 .maximum = 1,
181 .default_value = 1,
182 .type = V4L2_CTRL_TYPE_BOOLEAN,
183 },
184 .reg = PATH1_CTL1,
185 .mask = (0x1f << 24),
186 .shift = 24,
187 }, {
188 .v = {
189 .id = V4L2_CID_AUDIO_VOLUME,
190 .name = "Volume",
191 .minimum = 0,
192 .maximum = 0x3f,
193 .step = 1,
194 .default_value = 0x3f,
195 .type = V4L2_CTRL_TYPE_INTEGER,
196 },
197 .reg = PATH1_VOL_CTL,
198 .mask = 0xff,
199 .shift = 0,
200 }
201};
202static const int CX231XX_CTLS = ARRAY_SIZE(cx231xx_ctls);
203
204static const u32 cx231xx_user_ctrls[] = {
205 V4L2_CID_USER_CLASS,
206 V4L2_CID_BRIGHTNESS,
207 V4L2_CID_CONTRAST,
208 V4L2_CID_SATURATION,
209 V4L2_CID_HUE,
210 V4L2_CID_AUDIO_VOLUME,
211#if 0
212 V4L2_CID_AUDIO_BALANCE,
213#endif
214 V4L2_CID_AUDIO_MUTE,
215 0
216};
217
218static const u32 *ctrl_classes[] = {
219 cx231xx_user_ctrls,
220 NULL
221};
222
223/* ------------------------------------------------------------------
224 Video buffer and parser functions
225 ------------------------------------------------------------------*/
226
227/*
228 * Announces that a buffer were filled and request the next
229 */
230static inline void buffer_filled(struct cx231xx *dev,
231 struct cx231xx_dmaqueue *dma_q,
232 struct cx231xx_buffer *buf)
233{
234 /* Advice that buffer was filled */
235 cx231xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
236 buf->vb.state = VIDEOBUF_DONE;
237 buf->vb.field_count++;
238 do_gettimeofday(&buf->vb.ts);
239
240 if (dev->USE_ISO)
241 dev->video_mode.isoc_ctl.buf = NULL;
242 else
243 dev->video_mode.bulk_ctl.buf = NULL;
244
245 list_del(&buf->vb.queue);
246 wake_up(&buf->vb.done);
247}
248
249static inline void print_err_status(struct cx231xx *dev, int packet, int status)
250{
251 char *errmsg = "Unknown";
252
253 switch (status) {
254 case -ENOENT:
255 errmsg = "unlinked synchronuously";
256 break;
257 case -ECONNRESET:
258 errmsg = "unlinked asynchronuously";
259 break;
260 case -ENOSR:
261 errmsg = "Buffer error (overrun)";
262 break;
263 case -EPIPE:
264 errmsg = "Stalled (device not responding)";
265 break;
266 case -EOVERFLOW:
267 errmsg = "Babble (bad cable?)";
268 break;
269 case -EPROTO:
270 errmsg = "Bit-stuff error (bad cable?)";
271 break;
272 case -EILSEQ:
273 errmsg = "CRC/Timeout (could be anything)";
274 break;
275 case -ETIME:
276 errmsg = "Device does not respond";
277 break;
278 }
279 if (packet < 0) {
280 cx231xx_isocdbg("URB status %d [%s].\n", status, errmsg);
281 } else {
282 cx231xx_isocdbg("URB packet %d, status %d [%s].\n",
283 packet, status, errmsg);
284 }
285}
286
287/*
288 * video-buf generic routine to get the next available buffer
289 */
290static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q,
291 struct cx231xx_buffer **buf)
292{
293 struct cx231xx_video_mode *vmode =
294 container_of(dma_q, struct cx231xx_video_mode, vidq);
295 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
296
297 char *outp;
298
299 if (list_empty(&dma_q->active)) {
300 cx231xx_isocdbg("No active queue to serve\n");
301 if (dev->USE_ISO)
302 dev->video_mode.isoc_ctl.buf = NULL;
303 else
304 dev->video_mode.bulk_ctl.buf = NULL;
305 *buf = NULL;
306 return;
307 }
308
309 /* Get the next buffer */
310 *buf = list_entry(dma_q->active.next, struct cx231xx_buffer, vb.queue);
311
312 /* Cleans up buffer - Useful for testing for frame/URB loss */
313 outp = videobuf_to_vmalloc(&(*buf)->vb);
314 memset(outp, 0, (*buf)->vb.size);
315
316 if (dev->USE_ISO)
317 dev->video_mode.isoc_ctl.buf = *buf;
318 else
319 dev->video_mode.bulk_ctl.buf = *buf;
320
321 return;
322}
323
324/*
325 * Controls the isoc copy of each urb packet
326 */
327static inline int cx231xx_isoc_copy(struct cx231xx *dev, struct urb *urb)
328{
329 struct cx231xx_dmaqueue *dma_q = urb->context;
330 int i, rc = 1;
331 unsigned char *p_buffer;
332 u32 bytes_parsed = 0, buffer_size = 0;
333 u8 sav_eav = 0;
334
335 if (!dev)
336 return 0;
337
338 if (dev->state & DEV_DISCONNECTED)
339 return 0;
340
341 if (urb->status < 0) {
342 print_err_status(dev, -1, urb->status);
343 if (urb->status == -ENOENT)
344 return 0;
345 }
346
347 for (i = 0; i < urb->number_of_packets; i++) {
348 int status = urb->iso_frame_desc[i].status;
349
350 if (status < 0) {
351 print_err_status(dev, i, status);
352 if (urb->iso_frame_desc[i].status != -EPROTO)
353 continue;
354 }
355
356 if (urb->iso_frame_desc[i].actual_length <= 0) {
357 /* cx231xx_isocdbg("packet %d is empty",i); - spammy */
358 continue;
359 }
360 if (urb->iso_frame_desc[i].actual_length >
361 dev->video_mode.max_pkt_size) {
362 cx231xx_isocdbg("packet bigger than packet size");
363 continue;
364 }
365
366 /* get buffer pointer and length */
367 p_buffer = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
368 buffer_size = urb->iso_frame_desc[i].actual_length;
369 bytes_parsed = 0;
370
371 if (dma_q->is_partial_line) {
372 /* Handle the case of a partial line */
373 sav_eav = dma_q->last_sav;
374 } else {
375 /* Check for a SAV/EAV overlapping
376 the buffer boundary */
377 sav_eav =
378 cx231xx_find_boundary_SAV_EAV(p_buffer,
379 dma_q->partial_buf,
380 &bytes_parsed);
381 }
382
383 sav_eav &= 0xF0;
384 /* Get the first line if we have some portion of an SAV/EAV from
385 the last buffer or a partial line */
386 if (sav_eav) {
387 bytes_parsed += cx231xx_get_video_line(dev, dma_q,
388 sav_eav, /* SAV/EAV */
389 p_buffer + bytes_parsed, /* p_buffer */
390 buffer_size - bytes_parsed);/* buf size */
391 }
392
393 /* Now parse data that is completely in this buffer */
394 /* dma_q->is_partial_line = 0; */
395
396 while (bytes_parsed < buffer_size) {
397 u32 bytes_used = 0;
398
399 sav_eav = cx231xx_find_next_SAV_EAV(
400 p_buffer + bytes_parsed, /* p_buffer */
401 buffer_size - bytes_parsed, /* buf size */
402 &bytes_used);/* bytes used to get SAV/EAV */
403
404 bytes_parsed += bytes_used;
405
406 sav_eav &= 0xF0;
407 if (sav_eav && (bytes_parsed < buffer_size)) {
408 bytes_parsed += cx231xx_get_video_line(dev,
409 dma_q, sav_eav, /* SAV/EAV */
410 p_buffer + bytes_parsed,/* p_buffer */
411 buffer_size - bytes_parsed);/*buf size*/
412 }
413 }
414
415 /* Save the last four bytes of the buffer so we can check the
416 buffer boundary condition next time */
417 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
418 bytes_parsed = 0;
419
420 }
421 return rc;
422}
423
424static inline int cx231xx_bulk_copy(struct cx231xx *dev, struct urb *urb)
425{
426 struct cx231xx_dmaqueue *dma_q = urb->context;
427 int rc = 1;
428 unsigned char *p_buffer;
429 u32 bytes_parsed = 0, buffer_size = 0;
430 u8 sav_eav = 0;
431
432 if (!dev)
433 return 0;
434
435 if (dev->state & DEV_DISCONNECTED)
436 return 0;
437
438 if (urb->status < 0) {
439 print_err_status(dev, -1, urb->status);
440 if (urb->status == -ENOENT)
441 return 0;
442 }
443
444 if (1) {
445
446 /* get buffer pointer and length */
447 p_buffer = urb->transfer_buffer;
448 buffer_size = urb->actual_length;
449 bytes_parsed = 0;
450
451 if (dma_q->is_partial_line) {
452 /* Handle the case of a partial line */
453 sav_eav = dma_q->last_sav;
454 } else {
455 /* Check for a SAV/EAV overlapping
456 the buffer boundary */
457 sav_eav =
458 cx231xx_find_boundary_SAV_EAV(p_buffer,
459 dma_q->partial_buf,
460 &bytes_parsed);
461 }
462
463 sav_eav &= 0xF0;
464 /* Get the first line if we have some portion of an SAV/EAV from
465 the last buffer or a partial line */
466 if (sav_eav) {
467 bytes_parsed += cx231xx_get_video_line(dev, dma_q,
468 sav_eav, /* SAV/EAV */
469 p_buffer + bytes_parsed, /* p_buffer */
470 buffer_size - bytes_parsed);/* buf size */
471 }
472
473 /* Now parse data that is completely in this buffer */
474 /* dma_q->is_partial_line = 0; */
475
476 while (bytes_parsed < buffer_size) {
477 u32 bytes_used = 0;
478
479 sav_eav = cx231xx_find_next_SAV_EAV(
480 p_buffer + bytes_parsed, /* p_buffer */
481 buffer_size - bytes_parsed, /* buf size */
482 &bytes_used);/* bytes used to get SAV/EAV */
483
484 bytes_parsed += bytes_used;
485
486 sav_eav &= 0xF0;
487 if (sav_eav && (bytes_parsed < buffer_size)) {
488 bytes_parsed += cx231xx_get_video_line(dev,
489 dma_q, sav_eav, /* SAV/EAV */
490 p_buffer + bytes_parsed,/* p_buffer */
491 buffer_size - bytes_parsed);/*buf size*/
492 }
493 }
494
495 /* Save the last four bytes of the buffer so we can check the
496 buffer boundary condition next time */
497 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
498 bytes_parsed = 0;
499
500 }
501 return rc;
502}
503
504
505u8 cx231xx_find_boundary_SAV_EAV(u8 *p_buffer, u8 *partial_buf,
506 u32 *p_bytes_used)
507{
508 u32 bytes_used;
509 u8 boundary_bytes[8];
510 u8 sav_eav = 0;
511
512 *p_bytes_used = 0;
513
514 /* Create an array of the last 4 bytes of the last buffer and the first
515 4 bytes of the current buffer. */
516
517 memcpy(boundary_bytes, partial_buf, 4);
518 memcpy(boundary_bytes + 4, p_buffer, 4);
519
520 /* Check for the SAV/EAV in the boundary buffer */
521 sav_eav = cx231xx_find_next_SAV_EAV((u8 *)&boundary_bytes, 8,
522 &bytes_used);
523
524 if (sav_eav) {
525 /* found a boundary SAV/EAV. Updates the bytes used to reflect
526 only those used in the new buffer */
527 *p_bytes_used = bytes_used - 4;
528 }
529
530 return sav_eav;
531}
532
533u8 cx231xx_find_next_SAV_EAV(u8 *p_buffer, u32 buffer_size, u32 *p_bytes_used)
534{
535 u32 i;
536 u8 sav_eav = 0;
537
538 /*
539 * Don't search if the buffer size is less than 4. It causes a page
540 * fault since buffer_size - 4 evaluates to a large number in that
541 * case.
542 */
543 if (buffer_size < 4) {
544 *p_bytes_used = buffer_size;
545 return 0;
546 }
547
548 for (i = 0; i < (buffer_size - 3); i++) {
549
550 if ((p_buffer[i] == 0xFF) &&
551 (p_buffer[i + 1] == 0x00) && (p_buffer[i + 2] == 0x00)) {
552
553 *p_bytes_used = i + 4;
554 sav_eav = p_buffer[i + 3];
555 return sav_eav;
556 }
557 }
558
559 *p_bytes_used = buffer_size;
560 return 0;
561}
562
563u32 cx231xx_get_video_line(struct cx231xx *dev,
564 struct cx231xx_dmaqueue *dma_q, u8 sav_eav,
565 u8 *p_buffer, u32 buffer_size)
566{
567 u32 bytes_copied = 0;
568 int current_field = -1;
569
570 switch (sav_eav) {
571 case SAV_ACTIVE_VIDEO_FIELD1:
572 /* looking for skipped line which occurred in PAL 720x480 mode.
573 In this case, there will be no active data contained
574 between the SAV and EAV */
575 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
576 (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
577 ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
578 (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
579 (p_buffer[3] == EAV_VBLANK_FIELD1) ||
580 (p_buffer[3] == EAV_VBLANK_FIELD2)))
581 return bytes_copied;
582 current_field = 1;
583 break;
584
585 case SAV_ACTIVE_VIDEO_FIELD2:
586 /* looking for skipped line which occurred in PAL 720x480 mode.
587 In this case, there will be no active data contained between
588 the SAV and EAV */
589 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
590 (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
591 ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
592 (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
593 (p_buffer[3] == EAV_VBLANK_FIELD1) ||
594 (p_buffer[3] == EAV_VBLANK_FIELD2)))
595 return bytes_copied;
596 current_field = 2;
597 break;
598 }
599
600 dma_q->last_sav = sav_eav;
601
602 bytes_copied = cx231xx_copy_video_line(dev, dma_q, p_buffer,
603 buffer_size, current_field);
604
605 return bytes_copied;
606}
607
608u32 cx231xx_copy_video_line(struct cx231xx *dev,
609 struct cx231xx_dmaqueue *dma_q, u8 *p_line,
610 u32 length, int field_number)
611{
612 u32 bytes_to_copy;
613 struct cx231xx_buffer *buf;
614 u32 _line_size = dev->width * 2;
615
616 if (dma_q->current_field != field_number)
617 cx231xx_reset_video_buffer(dev, dma_q);
618
619 /* get the buffer pointer */
620 if (dev->USE_ISO)
621 buf = dev->video_mode.isoc_ctl.buf;
622 else
623 buf = dev->video_mode.bulk_ctl.buf;
624
625 /* Remember the field number for next time */
626 dma_q->current_field = field_number;
627
628 bytes_to_copy = dma_q->bytes_left_in_line;
629 if (bytes_to_copy > length)
630 bytes_to_copy = length;
631
632 if (dma_q->lines_completed >= dma_q->lines_per_field) {
633 dma_q->bytes_left_in_line -= bytes_to_copy;
634 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ?
635 0 : 1;
636 return 0;
637 }
638
639 dma_q->is_partial_line = 1;
640
641 /* If we don't have a buffer, just return the number of bytes we would
642 have copied if we had a buffer. */
643 if (!buf) {
644 dma_q->bytes_left_in_line -= bytes_to_copy;
645 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0)
646 ? 0 : 1;
647 return bytes_to_copy;
648 }
649
650 /* copy the data to video buffer */
651 cx231xx_do_copy(dev, dma_q, p_line, bytes_to_copy);
652
653 dma_q->pos += bytes_to_copy;
654 dma_q->bytes_left_in_line -= bytes_to_copy;
655
656 if (dma_q->bytes_left_in_line == 0) {
657 dma_q->bytes_left_in_line = _line_size;
658 dma_q->lines_completed++;
659 dma_q->is_partial_line = 0;
660
661 if (cx231xx_is_buffer_done(dev, dma_q) && buf) {
662 buffer_filled(dev, dma_q, buf);
663
664 dma_q->pos = 0;
665 buf = NULL;
666 dma_q->lines_completed = 0;
667 }
668 }
669
670 return bytes_to_copy;
671}
672
673void cx231xx_reset_video_buffer(struct cx231xx *dev,
674 struct cx231xx_dmaqueue *dma_q)
675{
676 struct cx231xx_buffer *buf;
677
678 /* handle the switch from field 1 to field 2 */
679 if (dma_q->current_field == 1) {
680 if (dma_q->lines_completed >= dma_q->lines_per_field)
681 dma_q->field1_done = 1;
682 else
683 dma_q->field1_done = 0;
684 }
685
686 if (dev->USE_ISO)
687 buf = dev->video_mode.isoc_ctl.buf;
688 else
689 buf = dev->video_mode.bulk_ctl.buf;
690
691 if (buf == NULL) {
692 /* first try to get the buffer */
693 get_next_buf(dma_q, &buf);
694
695 dma_q->pos = 0;
696 dma_q->field1_done = 0;
697 dma_q->current_field = -1;
698 }
699
700 /* reset the counters */
701 dma_q->bytes_left_in_line = dev->width << 1;
702 dma_q->lines_completed = 0;
703}
704
705int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
706 u8 *p_buffer, u32 bytes_to_copy)
707{
708 u8 *p_out_buffer = NULL;
709 u32 current_line_bytes_copied = 0;
710 struct cx231xx_buffer *buf;
711 u32 _line_size = dev->width << 1;
712 void *startwrite;
713 int offset, lencopy;
714
715 if (dev->USE_ISO)
716 buf = dev->video_mode.isoc_ctl.buf;
717 else
718 buf = dev->video_mode.bulk_ctl.buf;
719
720 if (buf == NULL)
721 return -1;
722
723 p_out_buffer = videobuf_to_vmalloc(&buf->vb);
724
725 current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line;
726
727 /* Offset field 2 one line from the top of the buffer */
728 offset = (dma_q->current_field == 1) ? 0 : _line_size;
729
730 /* Offset for field 2 */
731 startwrite = p_out_buffer + offset;
732
733 /* lines already completed in the current field */
734 startwrite += (dma_q->lines_completed * _line_size * 2);
735
736 /* bytes already completed in the current line */
737 startwrite += current_line_bytes_copied;
738
739 lencopy = dma_q->bytes_left_in_line > bytes_to_copy ?
740 bytes_to_copy : dma_q->bytes_left_in_line;
741
742 if ((u8 *)(startwrite + lencopy) > (u8 *)(p_out_buffer + buf->vb.size))
743 return 0;
744
745 /* The below copies the UYVY data straight into video buffer */
746 cx231xx_swab((u16 *) p_buffer, (u16 *) startwrite, (u16) lencopy);
747
748 return 0;
749}
750
751void cx231xx_swab(u16 *from, u16 *to, u16 len)
752{
753 u16 i;
754
755 if (len <= 0)
756 return;
757
758 for (i = 0; i < len / 2; i++)
759 to[i] = (from[i] << 8) | (from[i] >> 8);
760}
761
762u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q)
763{
764 u8 buffer_complete = 0;
765
766 /* Dual field stream */
767 buffer_complete = ((dma_q->current_field == 2) &&
768 (dma_q->lines_completed >= dma_q->lines_per_field) &&
769 dma_q->field1_done);
770
771 return buffer_complete;
772}
773
774/* ------------------------------------------------------------------
775 Videobuf operations
776 ------------------------------------------------------------------*/
777
778static int
779buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
780{
781 struct cx231xx_fh *fh = vq->priv_data;
782 struct cx231xx *dev = fh->dev;
783
784 *size = (fh->dev->width * fh->dev->height * dev->format->depth + 7)>>3;
785 if (0 == *count)
786 *count = CX231XX_DEF_BUF;
787
788 if (*count < CX231XX_MIN_BUF)
789 *count = CX231XX_MIN_BUF;
790
791 return 0;
792}
793
794/* This is called *without* dev->slock held; please keep it that way */
795static void free_buffer(struct videobuf_queue *vq, struct cx231xx_buffer *buf)
796{
797 struct cx231xx_fh *fh = vq->priv_data;
798 struct cx231xx *dev = fh->dev;
799 unsigned long flags = 0;
800
801 if (in_interrupt())
802 BUG();
803
804 /* We used to wait for the buffer to finish here, but this didn't work
805 because, as we were keeping the state as VIDEOBUF_QUEUED,
806 videobuf_queue_cancel marked it as finished for us.
807 (Also, it could wedge forever if the hardware was misconfigured.)
808
809 This should be safe; by the time we get here, the buffer isn't
810 queued anymore. If we ever start marking the buffers as
811 VIDEOBUF_ACTIVE, it won't be, though.
812 */
813 spin_lock_irqsave(&dev->video_mode.slock, flags);
814 if (dev->USE_ISO) {
815 if (dev->video_mode.isoc_ctl.buf == buf)
816 dev->video_mode.isoc_ctl.buf = NULL;
817 } else {
818 if (dev->video_mode.bulk_ctl.buf == buf)
819 dev->video_mode.bulk_ctl.buf = NULL;
820 }
821 spin_unlock_irqrestore(&dev->video_mode.slock, flags);
822
823 videobuf_vmalloc_free(&buf->vb);
824 buf->vb.state = VIDEOBUF_NEEDS_INIT;
825}
826
827static int
828buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
829 enum v4l2_field field)
830{
831 struct cx231xx_fh *fh = vq->priv_data;
832 struct cx231xx_buffer *buf =
833 container_of(vb, struct cx231xx_buffer, vb);
834 struct cx231xx *dev = fh->dev;
835 int rc = 0, urb_init = 0;
836
837 /* The only currently supported format is 16 bits/pixel */
838 buf->vb.size = (fh->dev->width * fh->dev->height * dev->format->depth
839 + 7) >> 3;
840 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
841 return -EINVAL;
842
843 buf->vb.width = dev->width;
844 buf->vb.height = dev->height;
845 buf->vb.field = field;
846
847 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
848 rc = videobuf_iolock(vq, &buf->vb, NULL);
849 if (rc < 0)
850 goto fail;
851 }
852
853 if (dev->USE_ISO) {
854 if (!dev->video_mode.isoc_ctl.num_bufs)
855 urb_init = 1;
856 } else {
857 if (!dev->video_mode.bulk_ctl.num_bufs)
858 urb_init = 1;
859 }
860 /*cx231xx_info("urb_init=%d dev->video_mode.max_pkt_size=%d\n",
861 urb_init, dev->video_mode.max_pkt_size);*/
862 if (urb_init) {
863 dev->mode_tv = 0;
864 if (dev->USE_ISO)
865 rc = cx231xx_init_isoc(dev, CX231XX_NUM_PACKETS,
866 CX231XX_NUM_BUFS,
867 dev->video_mode.max_pkt_size,
868 cx231xx_isoc_copy);
869 else
870 rc = cx231xx_init_bulk(dev, CX231XX_NUM_PACKETS,
871 CX231XX_NUM_BUFS,
872 dev->video_mode.max_pkt_size,
873 cx231xx_bulk_copy);
874 if (rc < 0)
875 goto fail;
876 }
877
878 buf->vb.state = VIDEOBUF_PREPARED;
879 return 0;
880
881fail:
882 free_buffer(vq, buf);
883 return rc;
884}
885
886static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
887{
888 struct cx231xx_buffer *buf =
889 container_of(vb, struct cx231xx_buffer, vb);
890 struct cx231xx_fh *fh = vq->priv_data;
891 struct cx231xx *dev = fh->dev;
892 struct cx231xx_dmaqueue *vidq = &dev->video_mode.vidq;
893
894 buf->vb.state = VIDEOBUF_QUEUED;
895 list_add_tail(&buf->vb.queue, &vidq->active);
896
897}
898
899static void buffer_release(struct videobuf_queue *vq,
900 struct videobuf_buffer *vb)
901{
902 struct cx231xx_buffer *buf =
903 container_of(vb, struct cx231xx_buffer, vb);
904 struct cx231xx_fh *fh = vq->priv_data;
905 struct cx231xx *dev = (struct cx231xx *)fh->dev;
906
907 cx231xx_isocdbg("cx231xx: called buffer_release\n");
908
909 free_buffer(vq, buf);
910}
911
912static struct videobuf_queue_ops cx231xx_video_qops = {
913 .buf_setup = buffer_setup,
914 .buf_prepare = buffer_prepare,
915 .buf_queue = buffer_queue,
916 .buf_release = buffer_release,
917};
918
919/********************* v4l2 interface **************************************/
920
921void video_mux(struct cx231xx *dev, int index)
922{
923 dev->video_input = index;
924 dev->ctl_ainput = INPUT(index)->amux;
925
926 cx231xx_set_video_input_mux(dev, index);
927
928 cx25840_call(dev, video, s_routing, INPUT(index)->vmux, 0, 0);
929
930 cx231xx_set_audio_input(dev, dev->ctl_ainput);
931
932 cx231xx_info("video_mux : %d\n", index);
933
934 /* do mode control overrides if required */
935 cx231xx_do_mode_ctrl_overrides(dev);
936}
937
938/* Usage lock check functions */
939static int res_get(struct cx231xx_fh *fh)
940{
941 struct cx231xx *dev = fh->dev;
942 int rc = 0;
943
944 /* This instance already has stream_on */
945 if (fh->stream_on)
946 return rc;
947
948 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
949 if (dev->stream_on)
950 return -EBUSY;
951 dev->stream_on = 1;
952 } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
953 if (dev->vbi_stream_on)
954 return -EBUSY;
955 dev->vbi_stream_on = 1;
956 } else
957 return -EINVAL;
958
959 fh->stream_on = 1;
960
961 return rc;
962}
963
964static int res_check(struct cx231xx_fh *fh)
965{
966 return fh->stream_on;
967}
968
969static void res_free(struct cx231xx_fh *fh)
970{
971 struct cx231xx *dev = fh->dev;
972
973 fh->stream_on = 0;
974
975 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
976 dev->stream_on = 0;
977 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
978 dev->vbi_stream_on = 0;
979}
980
981static int check_dev(struct cx231xx *dev)
982{
983 if (dev->state & DEV_DISCONNECTED) {
984 cx231xx_errdev("v4l2 ioctl: device not present\n");
985 return -ENODEV;
986 }
987 return 0;
988}
989
990/* ------------------------------------------------------------------
991 IOCTL vidioc handling
992 ------------------------------------------------------------------*/
993
994static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
995 struct v4l2_format *f)
996{
997 struct cx231xx_fh *fh = priv;
998 struct cx231xx *dev = fh->dev;
999
1000 f->fmt.pix.width = dev->width;
1001 f->fmt.pix.height = dev->height;
1002 f->fmt.pix.pixelformat = dev->format->fourcc;
1003 f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3;
1004 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height;
1005 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1006
1007 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1008
1009 return 0;
1010}
1011
1012static struct cx231xx_fmt *format_by_fourcc(unsigned int fourcc)
1013{
1014 unsigned int i;
1015
1016 for (i = 0; i < ARRAY_SIZE(format); i++)
1017 if (format[i].fourcc == fourcc)
1018 return &format[i];
1019
1020 return NULL;
1021}
1022
1023static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1024 struct v4l2_format *f)
1025{
1026 struct cx231xx_fh *fh = priv;
1027 struct cx231xx *dev = fh->dev;
1028 unsigned int width = f->fmt.pix.width;
1029 unsigned int height = f->fmt.pix.height;
1030 unsigned int maxw = norm_maxw(dev);
1031 unsigned int maxh = norm_maxh(dev);
1032 struct cx231xx_fmt *fmt;
1033
1034 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1035 if (!fmt) {
1036 cx231xx_videodbg("Fourcc format (%08x) invalid.\n",
1037 f->fmt.pix.pixelformat);
1038 return -EINVAL;
1039 }
1040
1041 /* width must even because of the YUYV format
1042 height must be even because of interlacing */
1043 v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh, 1, 0);
1044
1045 f->fmt.pix.width = width;
1046 f->fmt.pix.height = height;
1047 f->fmt.pix.pixelformat = fmt->fourcc;
1048 f->fmt.pix.bytesperline = (dev->width * fmt->depth + 7) >> 3;
1049 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height;
1050 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1051 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1052
1053 return 0;
1054}
1055
1056static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1057 struct v4l2_format *f)
1058{
1059 struct cx231xx_fh *fh = priv;
1060 struct cx231xx *dev = fh->dev;
1061 int rc;
1062 struct cx231xx_fmt *fmt;
1063 struct v4l2_mbus_framefmt mbus_fmt;
1064
1065 rc = check_dev(dev);
1066 if (rc < 0)
1067 return rc;
1068
1069 vidioc_try_fmt_vid_cap(file, priv, f);
1070
1071 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1072 if (!fmt)
1073 return -EINVAL;
1074
1075 if (videobuf_queue_is_busy(&fh->vb_vidq)) {
1076 cx231xx_errdev("%s queue busy\n", __func__);
1077 return -EBUSY;
1078 }
1079
1080 if (dev->stream_on && !fh->stream_on) {
1081 cx231xx_errdev("%s device in use by another fh\n", __func__);
1082 return -EBUSY;
1083 }
1084
1085 /* set new image size */
1086 dev->width = f->fmt.pix.width;
1087 dev->height = f->fmt.pix.height;
1088 dev->format = fmt;
1089
1090 v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
1091 call_all(dev, video, s_mbus_fmt, &mbus_fmt);
1092 v4l2_fill_pix_format(&f->fmt.pix, &mbus_fmt);
1093
1094 return rc;
1095}
1096
1097static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
1098{
1099 struct cx231xx_fh *fh = priv;
1100 struct cx231xx *dev = fh->dev;
1101
1102 *id = dev->norm;
1103 return 0;
1104}
1105
1106static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm)
1107{
1108 struct cx231xx_fh *fh = priv;
1109 struct cx231xx *dev = fh->dev;
1110 struct v4l2_mbus_framefmt mbus_fmt;
1111 struct v4l2_format f;
1112 int rc;
1113
1114 rc = check_dev(dev);
1115 if (rc < 0)
1116 return rc;
1117
1118 cx231xx_info("vidioc_s_std : 0x%x\n", (unsigned int)*norm);
1119
1120 dev->norm = *norm;
1121
1122 /* Adjusts width/height, if needed */
1123 f.fmt.pix.width = dev->width;
1124 f.fmt.pix.height = dev->height;
1125 vidioc_try_fmt_vid_cap(file, priv, &f);
1126
1127 call_all(dev, core, s_std, dev->norm);
1128
1129 /* We need to reset basic properties in the decoder related to
1130 resolution (since a standard change effects things like the number
1131 of lines in VACT, etc) */
1132 v4l2_fill_mbus_format(&mbus_fmt, &f.fmt.pix, V4L2_MBUS_FMT_FIXED);
1133 call_all(dev, video, s_mbus_fmt, &mbus_fmt);
1134 v4l2_fill_pix_format(&f.fmt.pix, &mbus_fmt);
1135
1136 /* set new image size */
1137 dev->width = f.fmt.pix.width;
1138 dev->height = f.fmt.pix.height;
1139
1140 /* do mode control overrides */
1141 cx231xx_do_mode_ctrl_overrides(dev);
1142
1143 return 0;
1144}
1145
1146static const char *iname[] = {
1147 [CX231XX_VMUX_COMPOSITE1] = "Composite1",
1148 [CX231XX_VMUX_SVIDEO] = "S-Video",
1149 [CX231XX_VMUX_TELEVISION] = "Television",
1150 [CX231XX_VMUX_CABLE] = "Cable TV",
1151 [CX231XX_VMUX_DVB] = "DVB",
1152 [CX231XX_VMUX_DEBUG] = "for debug only",
1153};
1154
1155static int vidioc_enum_input(struct file *file, void *priv,
1156 struct v4l2_input *i)
1157{
1158 struct cx231xx_fh *fh = priv;
1159 struct cx231xx *dev = fh->dev;
1160 u32 gen_stat;
1161 unsigned int ret, n;
1162
1163 n = i->index;
1164 if (n >= MAX_CX231XX_INPUT)
1165 return -EINVAL;
1166 if (0 == INPUT(n)->type)
1167 return -EINVAL;
1168
1169 i->index = n;
1170 i->type = V4L2_INPUT_TYPE_CAMERA;
1171
1172 strcpy(i->name, iname[INPUT(n)->type]);
1173
1174 if ((CX231XX_VMUX_TELEVISION == INPUT(n)->type) ||
1175 (CX231XX_VMUX_CABLE == INPUT(n)->type))
1176 i->type = V4L2_INPUT_TYPE_TUNER;
1177
1178 i->std = dev->vdev->tvnorms;
1179
1180 /* If they are asking about the active input, read signal status */
1181 if (n == dev->video_input) {
1182 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1183 GEN_STAT, 2, &gen_stat, 4);
1184 if (ret > 0) {
1185 if ((gen_stat & FLD_VPRES) == 0x00)
1186 i->status |= V4L2_IN_ST_NO_SIGNAL;
1187 if ((gen_stat & FLD_HLOCK) == 0x00)
1188 i->status |= V4L2_IN_ST_NO_H_LOCK;
1189 }
1190 }
1191
1192 return 0;
1193}
1194
1195static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1196{
1197 struct cx231xx_fh *fh = priv;
1198 struct cx231xx *dev = fh->dev;
1199
1200 *i = dev->video_input;
1201
1202 return 0;
1203}
1204
1205static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1206{
1207 struct cx231xx_fh *fh = priv;
1208 struct cx231xx *dev = fh->dev;
1209 int rc;
1210
1211 dev->mode_tv = 0;
1212 rc = check_dev(dev);
1213 if (rc < 0)
1214 return rc;
1215
1216 if (i >= MAX_CX231XX_INPUT)
1217 return -EINVAL;
1218 if (0 == INPUT(i)->type)
1219 return -EINVAL;
1220
1221 video_mux(dev, i);
1222
1223 if (INPUT(i)->type == CX231XX_VMUX_TELEVISION ||
1224 INPUT(i)->type == CX231XX_VMUX_CABLE) {
1225 /* There's a tuner, so reset the standard and put it on the
1226 last known frequency (since it was probably powered down
1227 until now */
1228 call_all(dev, core, s_std, dev->norm);
1229 }
1230
1231 return 0;
1232}
1233
1234static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1235{
1236 struct cx231xx_fh *fh = priv;
1237 struct cx231xx *dev = fh->dev;
1238
1239 switch (a->index) {
1240 case CX231XX_AMUX_VIDEO:
1241 strcpy(a->name, "Television");
1242 break;
1243 case CX231XX_AMUX_LINE_IN:
1244 strcpy(a->name, "Line In");
1245 break;
1246 default:
1247 return -EINVAL;
1248 }
1249
1250 a->index = dev->ctl_ainput;
1251 a->capability = V4L2_AUDCAP_STEREO;
1252
1253 return 0;
1254}
1255
1256static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
1257{
1258 struct cx231xx_fh *fh = priv;
1259 struct cx231xx *dev = fh->dev;
1260 int status = 0;
1261
1262 /* Doesn't allow manual routing */
1263 if (a->index != dev->ctl_ainput)
1264 return -EINVAL;
1265
1266 dev->ctl_ainput = INPUT(a->index)->amux;
1267 status = cx231xx_set_audio_input(dev, dev->ctl_ainput);
1268
1269 return status;
1270}
1271
1272static int vidioc_queryctrl(struct file *file, void *priv,
1273 struct v4l2_queryctrl *qc)
1274{
1275 struct cx231xx_fh *fh = priv;
1276 struct cx231xx *dev = fh->dev;
1277 int id = qc->id;
1278 int i;
1279 int rc;
1280
1281 rc = check_dev(dev);
1282 if (rc < 0)
1283 return rc;
1284
1285 qc->id = v4l2_ctrl_next(ctrl_classes, qc->id);
1286 if (unlikely(qc->id == 0))
1287 return -EINVAL;
1288
1289 memset(qc, 0, sizeof(*qc));
1290
1291 qc->id = id;
1292
1293 if (qc->id < V4L2_CID_BASE || qc->id >= V4L2_CID_LASTP1)
1294 return -EINVAL;
1295
1296 for (i = 0; i < CX231XX_CTLS; i++)
1297 if (cx231xx_ctls[i].v.id == qc->id)
1298 break;
1299
1300 if (i == CX231XX_CTLS) {
1301 *qc = no_ctl;
1302 return 0;
1303 }
1304 *qc = cx231xx_ctls[i].v;
1305
1306 call_all(dev, core, queryctrl, qc);
1307
1308 if (qc->type)
1309 return 0;
1310 else
1311 return -EINVAL;
1312}
1313
1314static int vidioc_g_ctrl(struct file *file, void *priv,
1315 struct v4l2_control *ctrl)
1316{
1317 struct cx231xx_fh *fh = priv;
1318 struct cx231xx *dev = fh->dev;
1319 int rc;
1320
1321 rc = check_dev(dev);
1322 if (rc < 0)
1323 return rc;
1324
1325 call_all(dev, core, g_ctrl, ctrl);
1326 return rc;
1327}
1328
1329static int vidioc_s_ctrl(struct file *file, void *priv,
1330 struct v4l2_control *ctrl)
1331{
1332 struct cx231xx_fh *fh = priv;
1333 struct cx231xx *dev = fh->dev;
1334 int rc;
1335
1336 rc = check_dev(dev);
1337 if (rc < 0)
1338 return rc;
1339
1340 call_all(dev, core, s_ctrl, ctrl);
1341 return rc;
1342}
1343
1344static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1345{
1346 struct cx231xx_fh *fh = priv;
1347 struct cx231xx *dev = fh->dev;
1348 int rc;
1349
1350 rc = check_dev(dev);
1351 if (rc < 0)
1352 return rc;
1353
1354 if (0 != t->index)
1355 return -EINVAL;
1356
1357 strcpy(t->name, "Tuner");
1358
1359 t->type = V4L2_TUNER_ANALOG_TV;
1360 t->capability = V4L2_TUNER_CAP_NORM;
1361 t->rangehigh = 0xffffffffUL;
1362 t->signal = 0xffff; /* LOCKED */
1363
1364 return 0;
1365}
1366
1367static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1368{
1369 struct cx231xx_fh *fh = priv;
1370 struct cx231xx *dev = fh->dev;
1371 int rc;
1372
1373 rc = check_dev(dev);
1374 if (rc < 0)
1375 return rc;
1376
1377 if (0 != t->index)
1378 return -EINVAL;
1379#if 0
1380 call_all(dev, tuner, s_tuner, t);
1381#endif
1382 return 0;
1383}
1384
1385static int vidioc_g_frequency(struct file *file, void *priv,
1386 struct v4l2_frequency *f)
1387{
1388 struct cx231xx_fh *fh = priv;
1389 struct cx231xx *dev = fh->dev;
1390
1391 f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1392 f->frequency = dev->ctl_freq;
1393
1394 call_all(dev, tuner, g_frequency, f);
1395
1396 return 0;
1397}
1398
1399static int vidioc_s_frequency(struct file *file, void *priv,
1400 struct v4l2_frequency *f)
1401{
1402 struct cx231xx_fh *fh = priv;
1403 struct cx231xx *dev = fh->dev;
1404 int rc;
1405 u32 if_frequency = 5400000;
1406
1407 cx231xx_info("Enter vidioc_s_frequency()f->frequency=%d;f->type=%d\n",
1408 f->frequency, f->type);
1409 /*cx231xx_info("f->type: 1-radio 2-analogTV 3-digitalTV\n");*/
1410
1411 rc = check_dev(dev);
1412 if (rc < 0)
1413 return rc;
1414
1415 if (0 != f->tuner)
1416 return -EINVAL;
1417
1418 if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1419 return -EINVAL;
1420 if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1421 return -EINVAL;
1422
1423 /* set pre channel change settings in DIF first */
1424 rc = cx231xx_tuner_pre_channel_change(dev);
1425
1426 dev->ctl_freq = f->frequency;
1427 call_all(dev, tuner, s_frequency, f);
1428
1429 /* set post channel change settings in DIF first */
1430 rc = cx231xx_tuner_post_channel_change(dev);
1431
1432 if (dev->tuner_type == TUNER_NXP_TDA18271) {
1433 if (dev->norm & (V4L2_STD_MN | V4L2_STD_NTSC_443))
1434 if_frequency = 5400000; /*5.4MHz */
1435 else if (dev->norm & V4L2_STD_B)
1436 if_frequency = 6000000; /*6.0MHz */
1437 else if (dev->norm & (V4L2_STD_PAL_DK | V4L2_STD_SECAM_DK))
1438 if_frequency = 6900000; /*6.9MHz */
1439 else if (dev->norm & V4L2_STD_GH)
1440 if_frequency = 7100000; /*7.1MHz */
1441 else if (dev->norm & V4L2_STD_PAL_I)
1442 if_frequency = 7250000; /*7.25MHz */
1443 else if (dev->norm & V4L2_STD_SECAM_L)
1444 if_frequency = 6900000; /*6.9MHz */
1445 else if (dev->norm & V4L2_STD_SECAM_LC)
1446 if_frequency = 1250000; /*1.25MHz */
1447
1448 cx231xx_info("if_frequency is set to %d\n", if_frequency);
1449 cx231xx_set_Colibri_For_LowIF(dev, if_frequency, 1, 1);
1450
1451 update_HH_register_after_set_DIF(dev);
1452 }
1453
1454 cx231xx_info("Set New FREQUENCY to %d\n", f->frequency);
1455
1456 return rc;
1457}
1458
1459#ifdef CONFIG_VIDEO_ADV_DEBUG
1460
1461/*
1462 -R, --list-registers=type=<host/i2cdrv/i2caddr>,
1463 chip=<chip>[,min=<addr>,max=<addr>]
1464 dump registers from <min> to <max> [VIDIOC_DBG_G_REGISTER]
1465 -r, --set-register=type=<host/i2cdrv/i2caddr>,
1466 chip=<chip>,reg=<addr>,val=<val>
1467 set the register [VIDIOC_DBG_S_REGISTER]
1468
1469 if type == host, then <chip> is the hosts chip ID (default 0)
1470 if type == i2cdrv (default), then <chip> is the I2C driver name or ID
1471 if type == i2caddr, then <chip> is the 7-bit I2C address
1472*/
1473
1474static int vidioc_g_register(struct file *file, void *priv,
1475 struct v4l2_dbg_register *reg)
1476{
1477 struct cx231xx_fh *fh = priv;
1478 struct cx231xx *dev = fh->dev;
1479 int ret = 0;
1480 u8 value[4] = { 0, 0, 0, 0 };
1481 u32 data = 0;
1482
1483 switch (reg->match.type) {
1484 case V4L2_CHIP_MATCH_HOST:
1485 switch (reg->match.addr) {
1486 case 0: /* Cx231xx - internal registers */
1487 ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
1488 (u16)reg->reg, value, 4);
1489 reg->val = value[0] | value[1] << 8 |
1490 value[2] << 16 | value[3] << 24;
1491 break;
1492 case 1: /* AFE - read byte */
1493 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1494 (u16)reg->reg, 2, &data, 1);
1495 reg->val = le32_to_cpu(data & 0xff);
1496 break;
1497 case 14: /* AFE - read dword */
1498 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1499 (u16)reg->reg, 2, &data, 4);
1500 reg->val = le32_to_cpu(data);
1501 break;
1502 case 2: /* Video Block - read byte */
1503 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1504 (u16)reg->reg, 2, &data, 1);
1505 reg->val = le32_to_cpu(data & 0xff);
1506 break;
1507 case 24: /* Video Block - read dword */
1508 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1509 (u16)reg->reg, 2, &data, 4);
1510 reg->val = le32_to_cpu(data);
1511 break;
1512 case 3: /* I2S block - read byte */
1513 ret = cx231xx_read_i2c_data(dev,
1514 I2S_BLK_DEVICE_ADDRESS,
1515 (u16)reg->reg, 1,
1516 &data, 1);
1517 reg->val = le32_to_cpu(data & 0xff);
1518 break;
1519 case 34: /* I2S Block - read dword */
1520 ret =
1521 cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1522 (u16)reg->reg, 1, &data, 4);
1523 reg->val = le32_to_cpu(data);
1524 break;
1525 }
1526 return ret < 0 ? ret : 0;
1527
1528 case V4L2_CHIP_MATCH_I2C_DRIVER:
1529 call_all(dev, core, g_register, reg);
1530 return 0;
1531 case V4L2_CHIP_MATCH_I2C_ADDR:/*for register debug*/
1532 switch (reg->match.addr) {
1533 case 0: /* Cx231xx - internal registers */
1534 ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
1535 (u16)reg->reg, value, 4);
1536 reg->val = value[0] | value[1] << 8 |
1537 value[2] << 16 | value[3] << 24;
1538
1539 break;
1540 case 0x600:/* AFE - read byte */
1541 ret = cx231xx_read_i2c_master(dev, AFE_DEVICE_ADDRESS,
1542 (u16)reg->reg, 2,
1543 &data, 1 , 0);
1544 reg->val = le32_to_cpu(data & 0xff);
1545 break;
1546
1547 case 0x880:/* Video Block - read byte */
1548 if (reg->reg < 0x0b) {
1549 ret = cx231xx_read_i2c_master(dev,
1550 VID_BLK_I2C_ADDRESS,
1551 (u16)reg->reg, 2,
1552 &data, 1 , 0);
1553 reg->val = le32_to_cpu(data & 0xff);
1554 } else {
1555 ret = cx231xx_read_i2c_master(dev,
1556 VID_BLK_I2C_ADDRESS,
1557 (u16)reg->reg, 2,
1558 &data, 4 , 0);
1559 reg->val = le32_to_cpu(data);
1560 }
1561 break;
1562 case 0x980:
1563 ret = cx231xx_read_i2c_master(dev,
1564 I2S_BLK_DEVICE_ADDRESS,
1565 (u16)reg->reg, 1,
1566 &data, 1 , 0);
1567 reg->val = le32_to_cpu(data & 0xff);
1568 break;
1569 case 0x400:
1570 ret =
1571 cx231xx_read_i2c_master(dev, 0x40,
1572 (u16)reg->reg, 1,
1573 &data, 1 , 0);
1574 reg->val = le32_to_cpu(data & 0xff);
1575 break;
1576 case 0xc01:
1577 ret =
1578 cx231xx_read_i2c_master(dev, 0xc0,
1579 (u16)reg->reg, 2,
1580 &data, 38, 1);
1581 reg->val = le32_to_cpu(data);
1582 break;
1583 case 0x022:
1584 ret =
1585 cx231xx_read_i2c_master(dev, 0x02,
1586 (u16)reg->reg, 1,
1587 &data, 1, 2);
1588 reg->val = le32_to_cpu(data & 0xff);
1589 break;
1590 case 0x322:
1591 ret = cx231xx_read_i2c_master(dev,
1592 0x32,
1593 (u16)reg->reg, 1,
1594 &data, 4 , 2);
1595 reg->val = le32_to_cpu(data);
1596 break;
1597 case 0x342:
1598 ret = cx231xx_read_i2c_master(dev,
1599 0x34,
1600 (u16)reg->reg, 1,
1601 &data, 4 , 2);
1602 reg->val = le32_to_cpu(data);
1603 break;
1604
1605 default:
1606 cx231xx_info("no match device address!!\n");
1607 break;
1608 }
1609 return ret < 0 ? ret : 0;
1610 /*return -EINVAL;*/
1611 default:
1612 if (!v4l2_chip_match_host(®->match))
1613 return -EINVAL;
1614 }
1615
1616 call_all(dev, core, g_register, reg);
1617
1618 return ret;
1619}
1620
1621static int vidioc_s_register(struct file *file, void *priv,
1622 struct v4l2_dbg_register *reg)
1623{
1624 struct cx231xx_fh *fh = priv;
1625 struct cx231xx *dev = fh->dev;
1626 int ret = 0;
1627 __le64 buf;
1628 u32 value;
1629 u8 data[4] = { 0, 0, 0, 0 };
1630
1631 buf = cpu_to_le64(reg->val);
1632
1633 switch (reg->match.type) {
1634 case V4L2_CHIP_MATCH_HOST:
1635 {
1636 value = (u32) buf & 0xffffffff;
1637
1638 switch (reg->match.addr) {
1639 case 0: /* cx231xx internal registers */
1640 data[0] = (u8) value;
1641 data[1] = (u8) (value >> 8);
1642 data[2] = (u8) (value >> 16);
1643 data[3] = (u8) (value >> 24);
1644 ret = cx231xx_write_ctrl_reg(dev,
1645 VRT_SET_REGISTER,
1646 (u16)reg->reg, data,
1647 4);
1648 break;
1649 case 1: /* AFE - read byte */
1650 ret = cx231xx_write_i2c_data(dev,
1651 AFE_DEVICE_ADDRESS,
1652 (u16)reg->reg, 2,
1653 value, 1);
1654 break;
1655 case 14: /* AFE - read dword */
1656 ret = cx231xx_write_i2c_data(dev,
1657 AFE_DEVICE_ADDRESS,
1658 (u16)reg->reg, 2,
1659 value, 4);
1660 break;
1661 case 2: /* Video Block - read byte */
1662 ret =
1663 cx231xx_write_i2c_data(dev,
1664 VID_BLK_I2C_ADDRESS,
1665 (u16)reg->reg, 2,
1666 value, 1);
1667 break;
1668 case 24: /* Video Block - read dword */
1669 ret =
1670 cx231xx_write_i2c_data(dev,
1671 VID_BLK_I2C_ADDRESS,
1672 (u16)reg->reg, 2,
1673 value, 4);
1674 break;
1675 case 3: /* I2S block - read byte */
1676 ret =
1677 cx231xx_write_i2c_data(dev,
1678 I2S_BLK_DEVICE_ADDRESS,
1679 (u16)reg->reg, 1,
1680 value, 1);
1681 break;
1682 case 34: /* I2S block - read dword */
1683 ret =
1684 cx231xx_write_i2c_data(dev,
1685 I2S_BLK_DEVICE_ADDRESS,
1686 (u16)reg->reg, 1,
1687 value, 4);
1688 break;
1689 }
1690 }
1691 return ret < 0 ? ret : 0;
1692 case V4L2_CHIP_MATCH_I2C_ADDR:
1693 {
1694 value = (u32) buf & 0xffffffff;
1695
1696 switch (reg->match.addr) {
1697 case 0:/*cx231xx internal registers*/
1698 data[0] = (u8) value;
1699 data[1] = (u8) (value >> 8);
1700 data[2] = (u8) (value >> 16);
1701 data[3] = (u8) (value >> 24);
1702 ret = cx231xx_write_ctrl_reg(dev,
1703 VRT_SET_REGISTER,
1704 (u16)reg->reg, data,
1705 4);
1706 break;
1707 case 0x600:/* AFE - read byte */
1708 ret = cx231xx_write_i2c_master(dev,
1709 AFE_DEVICE_ADDRESS,
1710 (u16)reg->reg, 2,
1711 value, 1 , 0);
1712 break;
1713
1714 case 0x880:/* Video Block - read byte */
1715 if (reg->reg < 0x0b)
1716 cx231xx_write_i2c_master(dev,
1717 VID_BLK_I2C_ADDRESS,
1718 (u16)reg->reg, 2,
1719 value, 1, 0);
1720 else
1721 cx231xx_write_i2c_master(dev,
1722 VID_BLK_I2C_ADDRESS,
1723 (u16)reg->reg, 2,
1724 value, 4, 0);
1725 break;
1726 case 0x980:
1727 ret =
1728 cx231xx_write_i2c_master(dev,
1729 I2S_BLK_DEVICE_ADDRESS,
1730 (u16)reg->reg, 1,
1731 value, 1, 0);
1732 break;
1733 case 0x400:
1734 ret =
1735 cx231xx_write_i2c_master(dev,
1736 0x40,
1737 (u16)reg->reg, 1,
1738 value, 1, 0);
1739 break;
1740 case 0xc01:
1741 ret =
1742 cx231xx_write_i2c_master(dev,
1743 0xc0,
1744 (u16)reg->reg, 1,
1745 value, 1, 1);
1746 break;
1747
1748 case 0x022:
1749 ret =
1750 cx231xx_write_i2c_master(dev,
1751 0x02,
1752 (u16)reg->reg, 1,
1753 value, 1, 2);
1754 case 0x322:
1755 ret =
1756 cx231xx_write_i2c_master(dev,
1757 0x32,
1758 (u16)reg->reg, 1,
1759 value, 4, 2);
1760 break;
1761
1762 case 0x342:
1763 ret =
1764 cx231xx_write_i2c_master(dev,
1765 0x34,
1766 (u16)reg->reg, 1,
1767 value, 4, 2);
1768 break;
1769 default:
1770 cx231xx_info("no match device address, "
1771 "the value is %x\n", reg->match.addr);
1772 break;
1773
1774 }
1775
1776 }
1777 default:
1778 break;
1779 }
1780
1781 call_all(dev, core, s_register, reg);
1782
1783 return ret;
1784}
1785#endif
1786
1787static int vidioc_cropcap(struct file *file, void *priv,
1788 struct v4l2_cropcap *cc)
1789{
1790 struct cx231xx_fh *fh = priv;
1791 struct cx231xx *dev = fh->dev;
1792
1793 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1794 return -EINVAL;
1795
1796 cc->bounds.left = 0;
1797 cc->bounds.top = 0;
1798 cc->bounds.width = dev->width;
1799 cc->bounds.height = dev->height;
1800 cc->defrect = cc->bounds;
1801 cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */
1802 cc->pixelaspect.denominator = 59;
1803
1804 return 0;
1805}
1806
1807static int vidioc_streamon(struct file *file, void *priv,
1808 enum v4l2_buf_type type)
1809{
1810 struct cx231xx_fh *fh = priv;
1811 struct cx231xx *dev = fh->dev;
1812 int rc;
1813
1814 rc = check_dev(dev);
1815 if (rc < 0)
1816 return rc;
1817
1818 rc = res_get(fh);
1819
1820 if (likely(rc >= 0))
1821 rc = videobuf_streamon(&fh->vb_vidq);
1822
1823 call_all(dev, video, s_stream, 1);
1824
1825 return rc;
1826}
1827
1828static int vidioc_streamoff(struct file *file, void *priv,
1829 enum v4l2_buf_type type)
1830{
1831 struct cx231xx_fh *fh = priv;
1832 struct cx231xx *dev = fh->dev;
1833 int rc;
1834
1835 rc = check_dev(dev);
1836 if (rc < 0)
1837 return rc;
1838
1839 if ((fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
1840 (fh->type != V4L2_BUF_TYPE_VBI_CAPTURE))
1841 return -EINVAL;
1842 if (type != fh->type)
1843 return -EINVAL;
1844
1845 cx25840_call(dev, video, s_stream, 0);
1846
1847 videobuf_streamoff(&fh->vb_vidq);
1848 res_free(fh);
1849
1850 return 0;
1851}
1852
1853static int vidioc_querycap(struct file *file, void *priv,
1854 struct v4l2_capability *cap)
1855{
1856 struct cx231xx_fh *fh = priv;
1857 struct cx231xx *dev = fh->dev;
1858
1859 strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
1860 strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
1861 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
1862
1863 cap->capabilities = V4L2_CAP_VBI_CAPTURE |
1864#if 0
1865 V4L2_CAP_SLICED_VBI_CAPTURE |
1866#endif
1867 V4L2_CAP_VIDEO_CAPTURE |
1868 V4L2_CAP_AUDIO |
1869 V4L2_CAP_READWRITE |
1870 V4L2_CAP_STREAMING;
1871
1872 if (dev->tuner_type != TUNER_ABSENT)
1873 cap->capabilities |= V4L2_CAP_TUNER;
1874
1875 return 0;
1876}
1877
1878static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1879 struct v4l2_fmtdesc *f)
1880{
1881 if (unlikely(f->index >= ARRAY_SIZE(format)))
1882 return -EINVAL;
1883
1884 strlcpy(f->description, format[f->index].name, sizeof(f->description));
1885 f->pixelformat = format[f->index].fourcc;
1886
1887 return 0;
1888}
1889
1890/* Sliced VBI ioctls */
1891static int vidioc_g_fmt_sliced_vbi_cap(struct file *file, void *priv,
1892 struct v4l2_format *f)
1893{
1894 struct cx231xx_fh *fh = priv;
1895 struct cx231xx *dev = fh->dev;
1896 int rc;
1897
1898 rc = check_dev(dev);
1899 if (rc < 0)
1900 return rc;
1901
1902 f->fmt.sliced.service_set = 0;
1903
1904 call_all(dev, vbi, g_sliced_fmt, &f->fmt.sliced);
1905
1906 if (f->fmt.sliced.service_set == 0)
1907 rc = -EINVAL;
1908
1909 return rc;
1910}
1911
1912static int vidioc_try_set_sliced_vbi_cap(struct file *file, void *priv,
1913 struct v4l2_format *f)
1914{
1915 struct cx231xx_fh *fh = priv;
1916 struct cx231xx *dev = fh->dev;
1917 int rc;
1918
1919 rc = check_dev(dev);
1920 if (rc < 0)
1921 return rc;
1922
1923 call_all(dev, vbi, g_sliced_fmt, &f->fmt.sliced);
1924
1925 if (f->fmt.sliced.service_set == 0)
1926 return -EINVAL;
1927
1928 return 0;
1929}
1930
1931/* RAW VBI ioctls */
1932
1933static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1934 struct v4l2_format *f)
1935{
1936 struct cx231xx_fh *fh = priv;
1937 struct cx231xx *dev = fh->dev;
1938 f->fmt.vbi.sampling_rate = 6750000 * 4;
1939 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1940 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1941 f->fmt.vbi.offset = 0;
1942 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1943 PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1944 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1945 PAL_VBI_LINES : NTSC_VBI_LINES;
1946 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1947 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1948 f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1949
1950 return 0;
1951
1952}
1953
1954static int vidioc_try_fmt_vbi_cap(struct file *file, void *priv,
1955 struct v4l2_format *f)
1956{
1957 struct cx231xx_fh *fh = priv;
1958 struct cx231xx *dev = fh->dev;
1959
1960 if (dev->vbi_stream_on && !fh->stream_on) {
1961 cx231xx_errdev("%s device in use by another fh\n", __func__);
1962 return -EBUSY;
1963 }
1964
1965 f->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1966 f->fmt.vbi.sampling_rate = 6750000 * 4;
1967 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1968 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1969 f->fmt.vbi.offset = 0;
1970 f->fmt.vbi.flags = 0;
1971 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1972 PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1973 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1974 PAL_VBI_LINES : NTSC_VBI_LINES;
1975 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1976 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1977 f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1978
1979 return 0;
1980
1981}
1982
1983static int vidioc_reqbufs(struct file *file, void *priv,
1984 struct v4l2_requestbuffers *rb)
1985{
1986 struct cx231xx_fh *fh = priv;
1987 struct cx231xx *dev = fh->dev;
1988 int rc;
1989
1990 rc = check_dev(dev);
1991 if (rc < 0)
1992 return rc;
1993
1994 return videobuf_reqbufs(&fh->vb_vidq, rb);
1995}
1996
1997static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *b)
1998{
1999 struct cx231xx_fh *fh = priv;
2000 struct cx231xx *dev = fh->dev;
2001 int rc;
2002
2003 rc = check_dev(dev);
2004 if (rc < 0)
2005 return rc;
2006
2007 return videobuf_querybuf(&fh->vb_vidq, b);
2008}
2009
2010static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2011{
2012 struct cx231xx_fh *fh = priv;
2013 struct cx231xx *dev = fh->dev;
2014 int rc;
2015
2016 rc = check_dev(dev);
2017 if (rc < 0)
2018 return rc;
2019
2020 return videobuf_qbuf(&fh->vb_vidq, b);
2021}
2022
2023static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2024{
2025 struct cx231xx_fh *fh = priv;
2026 struct cx231xx *dev = fh->dev;
2027 int rc;
2028
2029 rc = check_dev(dev);
2030 if (rc < 0)
2031 return rc;
2032
2033 return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK);
2034}
2035
2036/* ----------------------------------------------------------- */
2037/* RADIO ESPECIFIC IOCTLS */
2038/* ----------------------------------------------------------- */
2039
2040static int radio_querycap(struct file *file, void *priv,
2041 struct v4l2_capability *cap)
2042{
2043 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
2044
2045 strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
2046 strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
2047 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
2048
2049 cap->capabilities = V4L2_CAP_TUNER;
2050 return 0;
2051}
2052
2053static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
2054{
2055 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
2056
2057 if (unlikely(t->index > 0))
2058 return -EINVAL;
2059
2060 strcpy(t->name, "Radio");
2061 t->type = V4L2_TUNER_RADIO;
2062
2063 call_all(dev, tuner, s_tuner, t);
2064
2065 return 0;
2066}
2067
2068static int radio_enum_input(struct file *file, void *priv, struct v4l2_input *i)
2069{
2070 if (i->index != 0)
2071 return -EINVAL;
2072 strcpy(i->name, "Radio");
2073 i->type = V4L2_INPUT_TYPE_TUNER;
2074
2075 return 0;
2076}
2077
2078static int radio_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
2079{
2080 if (unlikely(a->index))
2081 return -EINVAL;
2082
2083 strcpy(a->name, "Radio");
2084 return 0;
2085}
2086
2087static int radio_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
2088{
2089 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
2090
2091 if (0 != t->index)
2092 return -EINVAL;
2093
2094 call_all(dev, tuner, s_tuner, t);
2095
2096 return 0;
2097}
2098
2099static int radio_s_audio(struct file *file, void *fh, struct v4l2_audio *a)
2100{
2101 return 0;
2102}
2103
2104static int radio_s_input(struct file *file, void *fh, unsigned int i)
2105{
2106 return 0;
2107}
2108
2109static int radio_queryctrl(struct file *file, void *priv,
2110 struct v4l2_queryctrl *c)
2111{
2112 int i;
2113
2114 if (c->id < V4L2_CID_BASE || c->id >= V4L2_CID_LASTP1)
2115 return -EINVAL;
2116 if (c->id == V4L2_CID_AUDIO_MUTE) {
2117 for (i = 0; i < CX231XX_CTLS; i++) {
2118 if (cx231xx_ctls[i].v.id == c->id)
2119 break;
2120 }
2121 if (i == CX231XX_CTLS)
2122 return -EINVAL;
2123 *c = cx231xx_ctls[i].v;
2124 } else
2125 *c = no_ctl;
2126 return 0;
2127}
2128
2129/*
2130 * cx231xx_v4l2_open()
2131 * inits the device and starts isoc transfer
2132 */
2133static int cx231xx_v4l2_open(struct file *filp)
2134{
2135 int errCode = 0, radio = 0;
2136 struct video_device *vdev = video_devdata(filp);
2137 struct cx231xx *dev = video_drvdata(filp);
2138 struct cx231xx_fh *fh;
2139 enum v4l2_buf_type fh_type = 0;
2140
2141 switch (vdev->vfl_type) {
2142 case VFL_TYPE_GRABBER:
2143 fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2144 break;
2145 case VFL_TYPE_VBI:
2146 fh_type = V4L2_BUF_TYPE_VBI_CAPTURE;
2147 break;
2148 case VFL_TYPE_RADIO:
2149 radio = 1;
2150 break;
2151 }
2152
2153 cx231xx_videodbg("open dev=%s type=%s users=%d\n",
2154 video_device_node_name(vdev), v4l2_type_names[fh_type],
2155 dev->users);
2156
2157#if 0
2158 errCode = cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
2159 if (errCode < 0) {
2160 cx231xx_errdev
2161 ("Device locked on digital mode. Can't open analog\n");
2162 return -EBUSY;
2163 }
2164#endif
2165
2166 fh = kzalloc(sizeof(struct cx231xx_fh), GFP_KERNEL);
2167 if (!fh) {
2168 cx231xx_errdev("cx231xx-video.c: Out of memory?!\n");
2169 return -ENOMEM;
2170 }
2171 fh->dev = dev;
2172 fh->radio = radio;
2173 fh->type = fh_type;
2174 filp->private_data = fh;
2175
2176 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
2177 dev->width = norm_maxw(dev);
2178 dev->height = norm_maxh(dev);
2179
2180 /* Power up in Analog TV mode */
2181 if (dev->board.external_av)
2182 cx231xx_set_power_mode(dev,
2183 POLARIS_AVMODE_ENXTERNAL_AV);
2184 else
2185 cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV);
2186
2187#if 0
2188 cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
2189#endif
2190
2191 /* set video alternate setting */
2192 cx231xx_set_video_alternate(dev);
2193
2194 /* Needed, since GPIO might have disabled power of
2195 some i2c device */
2196 cx231xx_config_i2c(dev);
2197
2198 /* device needs to be initialized before isoc transfer */
2199 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
2200
2201 }
2202 if (fh->radio) {
2203 cx231xx_videodbg("video_open: setting radio device\n");
2204
2205 /* cx231xx_start_radio(dev); */
2206
2207 call_all(dev, tuner, s_radio);
2208 }
2209
2210 dev->users++;
2211
2212 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
2213 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_video_qops,
2214 NULL, &dev->video_mode.slock,
2215 fh->type, V4L2_FIELD_INTERLACED,
2216 sizeof(struct cx231xx_buffer),
2217 fh, &dev->lock);
2218 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
2219 /* Set the required alternate setting VBI interface works in
2220 Bulk mode only */
2221 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
2222
2223 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_vbi_qops,
2224 NULL, &dev->vbi_mode.slock,
2225 fh->type, V4L2_FIELD_SEQ_TB,
2226 sizeof(struct cx231xx_buffer),
2227 fh, &dev->lock);
2228 }
2229
2230 return errCode;
2231}
2232
2233/*
2234 * cx231xx_realease_resources()
2235 * unregisters the v4l2,i2c and usb devices
2236 * called when the device gets disconected or at module unload
2237*/
2238void cx231xx_release_analog_resources(struct cx231xx *dev)
2239{
2240
2241 /*FIXME: I2C IR should be disconnected */
2242
2243 if (dev->radio_dev) {
2244 if (video_is_registered(dev->radio_dev))
2245 video_unregister_device(dev->radio_dev);
2246 else
2247 video_device_release(dev->radio_dev);
2248 dev->radio_dev = NULL;
2249 }
2250 if (dev->vbi_dev) {
2251 cx231xx_info("V4L2 device %s deregistered\n",
2252 video_device_node_name(dev->vbi_dev));
2253 if (video_is_registered(dev->vbi_dev))
2254 video_unregister_device(dev->vbi_dev);
2255 else
2256 video_device_release(dev->vbi_dev);
2257 dev->vbi_dev = NULL;
2258 }
2259 if (dev->vdev) {
2260 cx231xx_info("V4L2 device %s deregistered\n",
2261 video_device_node_name(dev->vdev));
2262
2263 if (dev->board.has_417)
2264 cx231xx_417_unregister(dev);
2265
2266 if (video_is_registered(dev->vdev))
2267 video_unregister_device(dev->vdev);
2268 else
2269 video_device_release(dev->vdev);
2270 dev->vdev = NULL;
2271 }
2272}
2273
2274/*
2275 * cx231xx_v4l2_close()
2276 * stops streaming and deallocates all resources allocated by the v4l2
2277 * calls and ioctls
2278 */
2279static int cx231xx_v4l2_close(struct file *filp)
2280{
2281 struct cx231xx_fh *fh = filp->private_data;
2282 struct cx231xx *dev = fh->dev;
2283
2284 cx231xx_videodbg("users=%d\n", dev->users);
2285
2286 cx231xx_videodbg("users=%d\n", dev->users);
2287 if (res_check(fh))
2288 res_free(fh);
2289
2290 /*
2291 * To workaround error number=-71 on EP0 for VideoGrabber,
2292 * need exclude following.
2293 * FIXME: It is probably safe to remove most of these, as we're
2294 * now avoiding the alternate setting for INDEX_VANC
2295 */
2296 if (!dev->board.no_alt_vanc)
2297 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
2298 videobuf_stop(&fh->vb_vidq);
2299 videobuf_mmap_free(&fh->vb_vidq);
2300
2301 /* the device is already disconnect,
2302 free the remaining resources */
2303 if (dev->state & DEV_DISCONNECTED) {
2304 if (atomic_read(&dev->devlist_count) > 0) {
2305 cx231xx_release_resources(dev);
2306 fh->dev = NULL;
2307 return 0;
2308 }
2309 return 0;
2310 }
2311
2312 /* do this before setting alternate! */
2313 cx231xx_uninit_vbi_isoc(dev);
2314
2315 /* set alternate 0 */
2316 if (!dev->vbi_or_sliced_cc_mode)
2317 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
2318 else
2319 cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
2320
2321 kfree(fh);
2322 dev->users--;
2323 wake_up_interruptible_nr(&dev->open, 1);
2324 return 0;
2325 }
2326
2327 dev->users--;
2328 if (!dev->users) {
2329 videobuf_stop(&fh->vb_vidq);
2330 videobuf_mmap_free(&fh->vb_vidq);
2331
2332 /* the device is already disconnect,
2333 free the remaining resources */
2334 if (dev->state & DEV_DISCONNECTED) {
2335 cx231xx_release_resources(dev);
2336 fh->dev = NULL;
2337 return 0;
2338 }
2339
2340 /* Save some power by putting tuner to sleep */
2341 call_all(dev, core, s_power, 0);
2342
2343 /* do this before setting alternate! */
2344 if (dev->USE_ISO)
2345 cx231xx_uninit_isoc(dev);
2346 else
2347 cx231xx_uninit_bulk(dev);
2348 cx231xx_set_mode(dev, CX231XX_SUSPEND);
2349
2350 /* set alternate 0 */
2351 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
2352 }
2353 kfree(fh);
2354 wake_up_interruptible_nr(&dev->open, 1);
2355 return 0;
2356}
2357
2358/*
2359 * cx231xx_v4l2_read()
2360 * will allocate buffers when called for the first time
2361 */
2362static ssize_t
2363cx231xx_v4l2_read(struct file *filp, char __user *buf, size_t count,
2364 loff_t *pos)
2365{
2366 struct cx231xx_fh *fh = filp->private_data;
2367 struct cx231xx *dev = fh->dev;
2368 int rc;
2369
2370 rc = check_dev(dev);
2371 if (rc < 0)
2372 return rc;
2373
2374 if ((fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
2375 (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)) {
2376 rc = res_get(fh);
2377
2378 if (unlikely(rc < 0))
2379 return rc;
2380
2381 return videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0,
2382 filp->f_flags & O_NONBLOCK);
2383 }
2384 return 0;
2385}
2386
2387/*
2388 * cx231xx_v4l2_poll()
2389 * will allocate buffers when called for the first time
2390 */
2391static unsigned int cx231xx_v4l2_poll(struct file *filp, poll_table *wait)
2392{
2393 struct cx231xx_fh *fh = filp->private_data;
2394 struct cx231xx *dev = fh->dev;
2395 int rc;
2396
2397 rc = check_dev(dev);
2398 if (rc < 0)
2399 return rc;
2400
2401 rc = res_get(fh);
2402
2403 if (unlikely(rc < 0))
2404 return POLLERR;
2405
2406 if ((V4L2_BUF_TYPE_VIDEO_CAPTURE == fh->type) ||
2407 (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type))
2408 return videobuf_poll_stream(filp, &fh->vb_vidq, wait);
2409 else
2410 return POLLERR;
2411}
2412
2413/*
2414 * cx231xx_v4l2_mmap()
2415 */
2416static int cx231xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
2417{
2418 struct cx231xx_fh *fh = filp->private_data;
2419 struct cx231xx *dev = fh->dev;
2420 int rc;
2421
2422 rc = check_dev(dev);
2423 if (rc < 0)
2424 return rc;
2425
2426 rc = res_get(fh);
2427
2428 if (unlikely(rc < 0))
2429 return rc;
2430
2431 rc = videobuf_mmap_mapper(&fh->vb_vidq, vma);
2432
2433 cx231xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n",
2434 (unsigned long)vma->vm_start,
2435 (unsigned long)vma->vm_end -
2436 (unsigned long)vma->vm_start, rc);
2437
2438 return rc;
2439}
2440
2441static const struct v4l2_file_operations cx231xx_v4l_fops = {
2442 .owner = THIS_MODULE,
2443 .open = cx231xx_v4l2_open,
2444 .release = cx231xx_v4l2_close,
2445 .read = cx231xx_v4l2_read,
2446 .poll = cx231xx_v4l2_poll,
2447 .mmap = cx231xx_v4l2_mmap,
2448 .unlocked_ioctl = video_ioctl2,
2449};
2450
2451static const struct v4l2_ioctl_ops video_ioctl_ops = {
2452 .vidioc_querycap = vidioc_querycap,
2453 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
2454 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
2455 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
2456 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
2457 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
2458 .vidioc_try_fmt_vbi_cap = vidioc_try_fmt_vbi_cap,
2459 .vidioc_s_fmt_vbi_cap = vidioc_try_fmt_vbi_cap,
2460 .vidioc_g_audio = vidioc_g_audio,
2461 .vidioc_s_audio = vidioc_s_audio,
2462 .vidioc_cropcap = vidioc_cropcap,
2463 .vidioc_g_fmt_sliced_vbi_cap = vidioc_g_fmt_sliced_vbi_cap,
2464 .vidioc_try_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap,
2465 .vidioc_reqbufs = vidioc_reqbufs,
2466 .vidioc_querybuf = vidioc_querybuf,
2467 .vidioc_qbuf = vidioc_qbuf,
2468 .vidioc_dqbuf = vidioc_dqbuf,
2469 .vidioc_s_std = vidioc_s_std,
2470 .vidioc_g_std = vidioc_g_std,
2471 .vidioc_enum_input = vidioc_enum_input,
2472 .vidioc_g_input = vidioc_g_input,
2473 .vidioc_s_input = vidioc_s_input,
2474 .vidioc_queryctrl = vidioc_queryctrl,
2475 .vidioc_g_ctrl = vidioc_g_ctrl,
2476 .vidioc_s_ctrl = vidioc_s_ctrl,
2477 .vidioc_streamon = vidioc_streamon,
2478 .vidioc_streamoff = vidioc_streamoff,
2479 .vidioc_g_tuner = vidioc_g_tuner,
2480 .vidioc_s_tuner = vidioc_s_tuner,
2481 .vidioc_g_frequency = vidioc_g_frequency,
2482 .vidioc_s_frequency = vidioc_s_frequency,
2483#ifdef CONFIG_VIDEO_ADV_DEBUG
2484 .vidioc_g_register = vidioc_g_register,
2485 .vidioc_s_register = vidioc_s_register,
2486#endif
2487};
2488
2489static struct video_device cx231xx_vbi_template;
2490
2491static const struct video_device cx231xx_video_template = {
2492 .fops = &cx231xx_v4l_fops,
2493 .release = video_device_release,
2494 .ioctl_ops = &video_ioctl_ops,
2495 .tvnorms = V4L2_STD_ALL,
2496 .current_norm = V4L2_STD_PAL,
2497};
2498
2499static const struct v4l2_file_operations radio_fops = {
2500 .owner = THIS_MODULE,
2501 .open = cx231xx_v4l2_open,
2502 .release = cx231xx_v4l2_close,
2503 .ioctl = video_ioctl2,
2504};
2505
2506static const struct v4l2_ioctl_ops radio_ioctl_ops = {
2507 .vidioc_querycap = radio_querycap,
2508 .vidioc_g_tuner = radio_g_tuner,
2509 .vidioc_enum_input = radio_enum_input,
2510 .vidioc_g_audio = radio_g_audio,
2511 .vidioc_s_tuner = radio_s_tuner,
2512 .vidioc_s_audio = radio_s_audio,
2513 .vidioc_s_input = radio_s_input,
2514 .vidioc_queryctrl = radio_queryctrl,
2515 .vidioc_g_ctrl = vidioc_g_ctrl,
2516 .vidioc_s_ctrl = vidioc_s_ctrl,
2517 .vidioc_g_frequency = vidioc_g_frequency,
2518 .vidioc_s_frequency = vidioc_s_frequency,
2519#ifdef CONFIG_VIDEO_ADV_DEBUG
2520 .vidioc_g_register = vidioc_g_register,
2521 .vidioc_s_register = vidioc_s_register,
2522#endif
2523};
2524
2525static struct video_device cx231xx_radio_template = {
2526 .name = "cx231xx-radio",
2527 .fops = &radio_fops,
2528 .ioctl_ops = &radio_ioctl_ops,
2529};
2530
2531/******************************** usb interface ******************************/
2532
2533static struct video_device *cx231xx_vdev_init(struct cx231xx *dev,
2534 const struct video_device
2535 *template, const char *type_name)
2536{
2537 struct video_device *vfd;
2538
2539 vfd = video_device_alloc();
2540 if (NULL == vfd)
2541 return NULL;
2542
2543 *vfd = *template;
2544 vfd->v4l2_dev = &dev->v4l2_dev;
2545 vfd->release = video_device_release;
2546 vfd->debug = video_debug;
2547 vfd->lock = &dev->lock;
2548 /* Locking in file operations other than ioctl should be done
2549 by the driver, not the V4L2 core.
2550 This driver needs auditing so that this flag can be removed. */
2551 set_bit(V4L2_FL_LOCK_ALL_FOPS, &vfd->flags);
2552
2553 snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
2554
2555 video_set_drvdata(vfd, dev);
2556 return vfd;
2557}
2558
2559int cx231xx_register_analog_devices(struct cx231xx *dev)
2560{
2561 int ret;
2562
2563 cx231xx_info("%s: v4l2 driver version %s\n",
2564 dev->name, CX231XX_VERSION);
2565
2566 /* set default norm */
2567 /*dev->norm = cx231xx_video_template.current_norm; */
2568 dev->width = norm_maxw(dev);
2569 dev->height = norm_maxh(dev);
2570 dev->interlaced = 0;
2571
2572 /* Analog specific initialization */
2573 dev->format = &format[0];
2574
2575 /* Set the initial input */
2576 video_mux(dev, dev->video_input);
2577
2578 /* Audio defaults */
2579 dev->mute = 1;
2580 dev->volume = 0x1f;
2581
2582 /* enable vbi capturing */
2583 /* write code here... */
2584
2585 /* allocate and fill video video_device struct */
2586 dev->vdev = cx231xx_vdev_init(dev, &cx231xx_video_template, "video");
2587 if (!dev->vdev) {
2588 cx231xx_errdev("cannot allocate video_device.\n");
2589 return -ENODEV;
2590 }
2591
2592 /* register v4l2 video video_device */
2593 ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
2594 video_nr[dev->devno]);
2595 if (ret) {
2596 cx231xx_errdev("unable to register video device (error=%i).\n",
2597 ret);
2598 return ret;
2599 }
2600
2601 cx231xx_info("%s/0: registered device %s [v4l2]\n",
2602 dev->name, video_device_node_name(dev->vdev));
2603
2604 /* Initialize VBI template */
2605 memcpy(&cx231xx_vbi_template, &cx231xx_video_template,
2606 sizeof(cx231xx_vbi_template));
2607 strcpy(cx231xx_vbi_template.name, "cx231xx-vbi");
2608
2609 /* Allocate and fill vbi video_device struct */
2610 dev->vbi_dev = cx231xx_vdev_init(dev, &cx231xx_vbi_template, "vbi");
2611
2612 /* register v4l2 vbi video_device */
2613 ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
2614 vbi_nr[dev->devno]);
2615 if (ret < 0) {
2616 cx231xx_errdev("unable to register vbi device\n");
2617 return ret;
2618 }
2619
2620 cx231xx_info("%s/0: registered device %s\n",
2621 dev->name, video_device_node_name(dev->vbi_dev));
2622
2623 if (cx231xx_boards[dev->model].radio.type == CX231XX_RADIO) {
2624 dev->radio_dev = cx231xx_vdev_init(dev, &cx231xx_radio_template,
2625 "radio");
2626 if (!dev->radio_dev) {
2627 cx231xx_errdev("cannot allocate video_device.\n");
2628 return -ENODEV;
2629 }
2630 ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
2631 radio_nr[dev->devno]);
2632 if (ret < 0) {
2633 cx231xx_errdev("can't register radio device\n");
2634 return ret;
2635 }
2636 cx231xx_info("Registered radio device as %s\n",
2637 video_device_node_name(dev->radio_dev));
2638 }
2639
2640 cx231xx_info("V4L2 device registered as %s and %s\n",
2641 video_device_node_name(dev->vdev),
2642 video_device_node_name(dev->vbi_dev));
2643
2644 return 0;
2645}