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Add linux-next specific files for 20110831
[linux-2.6/next.git] / drivers / media / video / cx231xx / cx231xx-video.c
blob6e81f970dc7d8e35d48975e141c5e75fbfdf878f
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
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 /* supported controls */
104 /* Common to all boards */
105
106 /* ------------------------------------------------------------------- */
107
108 static const struct v4l2_queryctrl no_ctl = {
109 .name = "42",
110 .flags = V4L2_CTRL_FLAG_DISABLED,
111 };
112
113 static 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 };
202 static const int CX231XX_CTLS = ARRAY_SIZE(cx231xx_ctls);
203
204 static 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
218 static 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 */
230 static 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
249 static 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 */
290 static 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 */
327 static inline int cx231xx_isoc_copy(struct cx231xx *dev, struct urb *urb)
328 {
329 struct cx231xx_buffer *buf;
330 struct cx231xx_dmaqueue *dma_q = urb->context;
331 unsigned char *outp = NULL;
332 int i, rc = 1;
333 unsigned char *p_buffer;
334 u32 bytes_parsed = 0, buffer_size = 0;
335 u8 sav_eav = 0;
336
337 if (!dev)
338 return 0;
339
340 if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
341 return 0;
342
343 if (urb->status < 0) {
344 print_err_status(dev, -1, urb->status);
345 if (urb->status == -ENOENT)
346 return 0;
347 }
348
349 buf = dev->video_mode.isoc_ctl.buf;
350 if (buf != NULL)
351 outp = videobuf_to_vmalloc(&buf->vb);
352
353 for (i = 0; i < urb->number_of_packets; i++) {
354 int status = urb->iso_frame_desc[i].status;
355
356 if (status < 0) {
357 print_err_status(dev, i, status);
358 if (urb->iso_frame_desc[i].status != -EPROTO)
359 continue;
360 }
361
362 if (urb->iso_frame_desc[i].actual_length <= 0) {
363 /* cx231xx_isocdbg("packet %d is empty",i); - spammy */
364 continue;
365 }
366 if (urb->iso_frame_desc[i].actual_length >
367 dev->video_mode.max_pkt_size) {
368 cx231xx_isocdbg("packet bigger than packet size");
369 continue;
370 }
371
372 /* get buffer pointer and length */
373 p_buffer = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
374 buffer_size = urb->iso_frame_desc[i].actual_length;
375 bytes_parsed = 0;
376
377 if (dma_q->is_partial_line) {
378 /* Handle the case of a partial line */
379 sav_eav = dma_q->last_sav;
380 } else {
381 /* Check for a SAV/EAV overlapping
382 the buffer boundary */
383 sav_eav =
384 cx231xx_find_boundary_SAV_EAV(p_buffer,
385 dma_q->partial_buf,
386 &bytes_parsed);
387 }
388
389 sav_eav &= 0xF0;
390 /* Get the first line if we have some portion of an SAV/EAV from
391 the last buffer or a partial line */
392 if (sav_eav) {
393 bytes_parsed += cx231xx_get_video_line(dev, dma_q,
394 sav_eav, /* SAV/EAV */
395 p_buffer + bytes_parsed, /* p_buffer */
396 buffer_size - bytes_parsed);/* buf size */
397 }
398
399 /* Now parse data that is completely in this buffer */
400 /* dma_q->is_partial_line = 0; */
401
402 while (bytes_parsed < buffer_size) {
403 u32 bytes_used = 0;
404
405 sav_eav = cx231xx_find_next_SAV_EAV(
406 p_buffer + bytes_parsed, /* p_buffer */
407 buffer_size - bytes_parsed, /* buf size */
408 &bytes_used);/* bytes used to get SAV/EAV */
409
410 bytes_parsed += bytes_used;
411
412 sav_eav &= 0xF0;
413 if (sav_eav && (bytes_parsed < buffer_size)) {
414 bytes_parsed += cx231xx_get_video_line(dev,
415 dma_q, sav_eav, /* SAV/EAV */
416 p_buffer + bytes_parsed,/* p_buffer */
417 buffer_size - bytes_parsed);/*buf size*/
418 }
419 }
420
421 /* Save the last four bytes of the buffer so we can check the
422 buffer boundary condition next time */
423 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
424 bytes_parsed = 0;
425
426 }
427 return rc;
428 }
429
430 static inline int cx231xx_bulk_copy(struct cx231xx *dev, struct urb *urb)
431 {
432 struct cx231xx_buffer *buf;
433 struct cx231xx_dmaqueue *dma_q = urb->context;
434 unsigned char *outp = NULL;
435 int rc = 1;
436 unsigned char *p_buffer;
437 u32 bytes_parsed = 0, buffer_size = 0;
438 u8 sav_eav = 0;
439
440 if (!dev)
441 return 0;
442
443 if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
444 return 0;
445
446 if (urb->status < 0) {
447 print_err_status(dev, -1, urb->status);
448 if (urb->status == -ENOENT)
449 return 0;
450 }
451
452 buf = dev->video_mode.bulk_ctl.buf;
453 if (buf != NULL)
454 outp = videobuf_to_vmalloc(&buf->vb);
455
456 if (1) {
457
458 /* get buffer pointer and length */
459 p_buffer = urb->transfer_buffer;
460 buffer_size = urb->actual_length;
461 bytes_parsed = 0;
462
463 if (dma_q->is_partial_line) {
464 /* Handle the case of a partial line */
465 sav_eav = dma_q->last_sav;
466 } else {
467 /* Check for a SAV/EAV overlapping
468 the buffer boundary */
469 sav_eav =
470 cx231xx_find_boundary_SAV_EAV(p_buffer,
471 dma_q->partial_buf,
472 &bytes_parsed);
473 }
474
475 sav_eav &= 0xF0;
476 /* Get the first line if we have some portion of an SAV/EAV from
477 the last buffer or a partial line */
478 if (sav_eav) {
479 bytes_parsed += cx231xx_get_video_line(dev, dma_q,
480 sav_eav, /* SAV/EAV */
481 p_buffer + bytes_parsed, /* p_buffer */
482 buffer_size - bytes_parsed);/* buf size */
483 }
484
485 /* Now parse data that is completely in this buffer */
486 /* dma_q->is_partial_line = 0; */
487
488 while (bytes_parsed < buffer_size) {
489 u32 bytes_used = 0;
490
491 sav_eav = cx231xx_find_next_SAV_EAV(
492 p_buffer + bytes_parsed, /* p_buffer */
493 buffer_size - bytes_parsed, /* buf size */
494 &bytes_used);/* bytes used to get SAV/EAV */
495
496 bytes_parsed += bytes_used;
497
498 sav_eav &= 0xF0;
499 if (sav_eav && (bytes_parsed < buffer_size)) {
500 bytes_parsed += cx231xx_get_video_line(dev,
501 dma_q, sav_eav, /* SAV/EAV */
502 p_buffer + bytes_parsed,/* p_buffer */
503 buffer_size - bytes_parsed);/*buf size*/
504 }
505 }
506
507 /* Save the last four bytes of the buffer so we can check the
508 buffer boundary condition next time */
509 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
510 bytes_parsed = 0;
511
512 }
513 return rc;
514 }
515
516
517 u8 cx231xx_find_boundary_SAV_EAV(u8 *p_buffer, u8 *partial_buf,
518 u32 *p_bytes_used)
519 {
520 u32 bytes_used;
521 u8 boundary_bytes[8];
522 u8 sav_eav = 0;
523
524 *p_bytes_used = 0;
525
526 /* Create an array of the last 4 bytes of the last buffer and the first
527 4 bytes of the current buffer. */
528
529 memcpy(boundary_bytes, partial_buf, 4);
530 memcpy(boundary_bytes + 4, p_buffer, 4);
531
532 /* Check for the SAV/EAV in the boundary buffer */
533 sav_eav = cx231xx_find_next_SAV_EAV((u8 *)&boundary_bytes, 8,
534 &bytes_used);
535
536 if (sav_eav) {
537 /* found a boundary SAV/EAV. Updates the bytes used to reflect
538 only those used in the new buffer */
539 *p_bytes_used = bytes_used - 4;
540 }
541
542 return sav_eav;
543 }
544
545 u8 cx231xx_find_next_SAV_EAV(u8 *p_buffer, u32 buffer_size, u32 *p_bytes_used)
546 {
547 u32 i;
548 u8 sav_eav = 0;
549
550 /*
551 * Don't search if the buffer size is less than 4. It causes a page
552 * fault since buffer_size - 4 evaluates to a large number in that
553 * case.
554 */
555 if (buffer_size < 4) {
556 *p_bytes_used = buffer_size;
557 return 0;
558 }
559
560 for (i = 0; i < (buffer_size - 3); i++) {
561
562 if ((p_buffer[i] == 0xFF) &&
563 (p_buffer[i + 1] == 0x00) && (p_buffer[i + 2] == 0x00)) {
564
565 *p_bytes_used = i + 4;
566 sav_eav = p_buffer[i + 3];
567 return sav_eav;
568 }
569 }
570
571 *p_bytes_used = buffer_size;
572 return 0;
573 }
574
575 u32 cx231xx_get_video_line(struct cx231xx *dev,
576 struct cx231xx_dmaqueue *dma_q, u8 sav_eav,
577 u8 *p_buffer, u32 buffer_size)
578 {
579 u32 bytes_copied = 0;
580 int current_field = -1;
581
582 switch (sav_eav) {
583 case SAV_ACTIVE_VIDEO_FIELD1:
584 /* looking for skipped line which occurred in PAL 720x480 mode.
585 In this case, there will be no active data contained
586 between the SAV and EAV */
587 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
588 (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
589 ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
590 (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
591 (p_buffer[3] == EAV_VBLANK_FIELD1) ||
592 (p_buffer[3] == EAV_VBLANK_FIELD2)))
593 return bytes_copied;
594 current_field = 1;
595 break;
596
597 case SAV_ACTIVE_VIDEO_FIELD2:
598 /* looking for skipped line which occurred in PAL 720x480 mode.
599 In this case, there will be no active data contained between
600 the SAV and EAV */
601 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
602 (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
603 ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
604 (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
605 (p_buffer[3] == EAV_VBLANK_FIELD1) ||
606 (p_buffer[3] == EAV_VBLANK_FIELD2)))
607 return bytes_copied;
608 current_field = 2;
609 break;
610 }
611
612 dma_q->last_sav = sav_eav;
613
614 bytes_copied = cx231xx_copy_video_line(dev, dma_q, p_buffer,
615 buffer_size, current_field);
616
617 return bytes_copied;
618 }
619
620 u32 cx231xx_copy_video_line(struct cx231xx *dev,
621 struct cx231xx_dmaqueue *dma_q, u8 *p_line,
622 u32 length, int field_number)
623 {
624 u32 bytes_to_copy;
625 struct cx231xx_buffer *buf;
626 u32 _line_size = dev->width * 2;
627
628 if (dma_q->current_field != field_number)
629 cx231xx_reset_video_buffer(dev, dma_q);
630
631 /* get the buffer pointer */
632 if (dev->USE_ISO)
633 buf = dev->video_mode.isoc_ctl.buf;
634 else
635 buf = dev->video_mode.bulk_ctl.buf;
636
637 /* Remember the field number for next time */
638 dma_q->current_field = field_number;
639
640 bytes_to_copy = dma_q->bytes_left_in_line;
641 if (bytes_to_copy > length)
642 bytes_to_copy = length;
643
644 if (dma_q->lines_completed >= dma_q->lines_per_field) {
645 dma_q->bytes_left_in_line -= bytes_to_copy;
646 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ?
647 0 : 1;
648 return 0;
649 }
650
651 dma_q->is_partial_line = 1;
652
653 /* If we don't have a buffer, just return the number of bytes we would
654 have copied if we had a buffer. */
655 if (!buf) {
656 dma_q->bytes_left_in_line -= bytes_to_copy;
657 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0)
658 ? 0 : 1;
659 return bytes_to_copy;
660 }
661
662 /* copy the data to video buffer */
663 cx231xx_do_copy(dev, dma_q, p_line, bytes_to_copy);
664
665 dma_q->pos += bytes_to_copy;
666 dma_q->bytes_left_in_line -= bytes_to_copy;
667
668 if (dma_q->bytes_left_in_line == 0) {
669 dma_q->bytes_left_in_line = _line_size;
670 dma_q->lines_completed++;
671 dma_q->is_partial_line = 0;
672
673 if (cx231xx_is_buffer_done(dev, dma_q) && buf) {
674 buffer_filled(dev, dma_q, buf);
675
676 dma_q->pos = 0;
677 buf = NULL;
678 dma_q->lines_completed = 0;
679 }
680 }
681
682 return bytes_to_copy;
683 }
684
685 void cx231xx_reset_video_buffer(struct cx231xx *dev,
686 struct cx231xx_dmaqueue *dma_q)
687 {
688 struct cx231xx_buffer *buf;
689
690 /* handle the switch from field 1 to field 2 */
691 if (dma_q->current_field == 1) {
692 if (dma_q->lines_completed >= dma_q->lines_per_field)
693 dma_q->field1_done = 1;
694 else
695 dma_q->field1_done = 0;
696 }
697
698 if (dev->USE_ISO)
699 buf = dev->video_mode.isoc_ctl.buf;
700 else
701 buf = dev->video_mode.bulk_ctl.buf;
702
703 if (buf == NULL) {
704 u8 *outp = NULL;
705 /* first try to get the buffer */
706 get_next_buf(dma_q, &buf);
707
708 if (buf)
709 outp = videobuf_to_vmalloc(&buf->vb);
710
711 dma_q->pos = 0;
712 dma_q->field1_done = 0;
713 dma_q->current_field = -1;
714 }
715
716 /* reset the counters */
717 dma_q->bytes_left_in_line = dev->width << 1;
718 dma_q->lines_completed = 0;
719 }
720
721 int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
722 u8 *p_buffer, u32 bytes_to_copy)
723 {
724 u8 *p_out_buffer = NULL;
725 u32 current_line_bytes_copied = 0;
726 struct cx231xx_buffer *buf;
727 u32 _line_size = dev->width << 1;
728 void *startwrite;
729 int offset, lencopy;
730
731 if (dev->USE_ISO)
732 buf = dev->video_mode.isoc_ctl.buf;
733 else
734 buf = dev->video_mode.bulk_ctl.buf;
735
736 if (buf == NULL)
737 return -1;
738
739 p_out_buffer = videobuf_to_vmalloc(&buf->vb);
740
741 current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line;
742
743 /* Offset field 2 one line from the top of the buffer */
744 offset = (dma_q->current_field == 1) ? 0 : _line_size;
745
746 /* Offset for field 2 */
747 startwrite = p_out_buffer + offset;
748
749 /* lines already completed in the current field */
750 startwrite += (dma_q->lines_completed * _line_size * 2);
751
752 /* bytes already completed in the current line */
753 startwrite += current_line_bytes_copied;
754
755 lencopy = dma_q->bytes_left_in_line > bytes_to_copy ?
756 bytes_to_copy : dma_q->bytes_left_in_line;
757
758 if ((u8 *)(startwrite + lencopy) > (u8 *)(p_out_buffer + buf->vb.size))
759 return 0;
760
761 /* The below copies the UYVY data straight into video buffer */
762 cx231xx_swab((u16 *) p_buffer, (u16 *) startwrite, (u16) lencopy);
763
764 return 0;
765 }
766
767 void cx231xx_swab(u16 *from, u16 *to, u16 len)
768 {
769 u16 i;
770
771 if (len <= 0)
772 return;
773
774 for (i = 0; i < len / 2; i++)
775 to[i] = (from[i] << 8) | (from[i] >> 8);
776 }
777
778 u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q)
779 {
780 u8 buffer_complete = 0;
781
782 /* Dual field stream */
783 buffer_complete = ((dma_q->current_field == 2) &&
784 (dma_q->lines_completed >= dma_q->lines_per_field) &&
785 dma_q->field1_done);
786
787 return buffer_complete;
788 }
789
790 /* ------------------------------------------------------------------
791 Videobuf operations
792 ------------------------------------------------------------------*/
793
794 static int
795 buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
796 {
797 struct cx231xx_fh *fh = vq->priv_data;
798 struct cx231xx *dev = fh->dev;
799
800 *size = (fh->dev->width * fh->dev->height * dev->format->depth + 7)>>3;
801 if (0 == *count)
802 *count = CX231XX_DEF_BUF;
803
804 if (*count < CX231XX_MIN_BUF)
805 *count = CX231XX_MIN_BUF;
806
807 return 0;
808 }
809
810 /* This is called *without* dev->slock held; please keep it that way */
811 static void free_buffer(struct videobuf_queue *vq, struct cx231xx_buffer *buf)
812 {
813 struct cx231xx_fh *fh = vq->priv_data;
814 struct cx231xx *dev = fh->dev;
815 unsigned long flags = 0;
816
817 if (in_interrupt())
818 BUG();
819
820 /* We used to wait for the buffer to finish here, but this didn't work
821 because, as we were keeping the state as VIDEOBUF_QUEUED,
822 videobuf_queue_cancel marked it as finished for us.
823 (Also, it could wedge forever if the hardware was misconfigured.)
824
825 This should be safe; by the time we get here, the buffer isn't
826 queued anymore. If we ever start marking the buffers as
827 VIDEOBUF_ACTIVE, it won't be, though.
828 */
829 spin_lock_irqsave(&dev->video_mode.slock, flags);
830 if (dev->USE_ISO) {
831 if (dev->video_mode.isoc_ctl.buf == buf)
832 dev->video_mode.isoc_ctl.buf = NULL;
833 } else {
834 if (dev->video_mode.bulk_ctl.buf == buf)
835 dev->video_mode.bulk_ctl.buf = NULL;
836 }
837 spin_unlock_irqrestore(&dev->video_mode.slock, flags);
838
839 videobuf_vmalloc_free(&buf->vb);
840 buf->vb.state = VIDEOBUF_NEEDS_INIT;
841 }
842
843 static int
844 buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
845 enum v4l2_field field)
846 {
847 struct cx231xx_fh *fh = vq->priv_data;
848 struct cx231xx_buffer *buf =
849 container_of(vb, struct cx231xx_buffer, vb);
850 struct cx231xx *dev = fh->dev;
851 int rc = 0, urb_init = 0;
852
853 /* The only currently supported format is 16 bits/pixel */
854 buf->vb.size = (fh->dev->width * fh->dev->height * dev->format->depth
855 + 7) >> 3;
856 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
857 return -EINVAL;
858
859 buf->vb.width = dev->width;
860 buf->vb.height = dev->height;
861 buf->vb.field = field;
862
863 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
864 rc = videobuf_iolock(vq, &buf->vb, NULL);
865 if (rc < 0)
866 goto fail;
867 }
868
869 if (dev->USE_ISO) {
870 if (!dev->video_mode.isoc_ctl.num_bufs)
871 urb_init = 1;
872 } else {
873 if (!dev->video_mode.bulk_ctl.num_bufs)
874 urb_init = 1;
875 }
876 /*cx231xx_info("urb_init=%d dev->video_mode.max_pkt_size=%d\n",
877 urb_init, dev->video_mode.max_pkt_size);*/
878 if (urb_init) {
879 dev->mode_tv = 0;
880 if (dev->USE_ISO)
881 rc = cx231xx_init_isoc(dev, CX231XX_NUM_PACKETS,
882 CX231XX_NUM_BUFS,
883 dev->video_mode.max_pkt_size,
884 cx231xx_isoc_copy);
885 else
886 rc = cx231xx_init_bulk(dev, CX231XX_NUM_PACKETS,
887 CX231XX_NUM_BUFS,
888 dev->video_mode.max_pkt_size,
889 cx231xx_bulk_copy);
890 if (rc < 0)
891 goto fail;
892 }
893
894 buf->vb.state = VIDEOBUF_PREPARED;
895 return 0;
896
897 fail:
898 free_buffer(vq, buf);
899 return rc;
900 }
901
902 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
903 {
904 struct cx231xx_buffer *buf =
905 container_of(vb, struct cx231xx_buffer, vb);
906 struct cx231xx_fh *fh = vq->priv_data;
907 struct cx231xx *dev = fh->dev;
908 struct cx231xx_dmaqueue *vidq = &dev->video_mode.vidq;
909
910 buf->vb.state = VIDEOBUF_QUEUED;
911 list_add_tail(&buf->vb.queue, &vidq->active);
912
913 }
914
915 static void buffer_release(struct videobuf_queue *vq,
916 struct videobuf_buffer *vb)
917 {
918 struct cx231xx_buffer *buf =
919 container_of(vb, struct cx231xx_buffer, vb);
920 struct cx231xx_fh *fh = vq->priv_data;
921 struct cx231xx *dev = (struct cx231xx *)fh->dev;
922
923 cx231xx_isocdbg("cx231xx: called buffer_release\n");
924
925 free_buffer(vq, buf);
926 }
927
928 static struct videobuf_queue_ops cx231xx_video_qops = {
929 .buf_setup = buffer_setup,
930 .buf_prepare = buffer_prepare,
931 .buf_queue = buffer_queue,
932 .buf_release = buffer_release,
933 };
934
935 /********************* v4l2 interface **************************************/
936
937 void video_mux(struct cx231xx *dev, int index)
938 {
939 dev->video_input = index;
940 dev->ctl_ainput = INPUT(index)->amux;
941
942 cx231xx_set_video_input_mux(dev, index);
943
944 cx25840_call(dev, video, s_routing, INPUT(index)->vmux, 0, 0);
945
946 cx231xx_set_audio_input(dev, dev->ctl_ainput);
947
948 cx231xx_info("video_mux : %d\n", index);
949
950 /* do mode control overrides if required */
951 cx231xx_do_mode_ctrl_overrides(dev);
952 }
953
954 /* Usage lock check functions */
955 static int res_get(struct cx231xx_fh *fh)
956 {
957 struct cx231xx *dev = fh->dev;
958 int rc = 0;
959
960 /* This instance already has stream_on */
961 if (fh->stream_on)
962 return rc;
963
964 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
965 if (dev->stream_on)
966 return -EBUSY;
967 dev->stream_on = 1;
968 } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
969 if (dev->vbi_stream_on)
970 return -EBUSY;
971 dev->vbi_stream_on = 1;
972 } else
973 return -EINVAL;
974
975 fh->stream_on = 1;
976
977 return rc;
978 }
979
980 static int res_check(struct cx231xx_fh *fh)
981 {
982 return fh->stream_on;
983 }
984
985 static void res_free(struct cx231xx_fh *fh)
986 {
987 struct cx231xx *dev = fh->dev;
988
989 fh->stream_on = 0;
990
991 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
992 dev->stream_on = 0;
993 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
994 dev->vbi_stream_on = 0;
995 }
996
997 static int check_dev(struct cx231xx *dev)
998 {
999 if (dev->state & DEV_DISCONNECTED) {
1000 cx231xx_errdev("v4l2 ioctl: device not present\n");
1001 return -ENODEV;
1002 }
1003
1004 if (dev->state & DEV_MISCONFIGURED) {
1005 cx231xx_errdev("v4l2 ioctl: device is misconfigured; "
1006 "close and open it again\n");
1007 return -EIO;
1008 }
1009 return 0;
1010 }
1011
1012 /* ------------------------------------------------------------------
1013 IOCTL vidioc handling
1014 ------------------------------------------------------------------*/
1015
1016 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1017 struct v4l2_format *f)
1018 {
1019 struct cx231xx_fh *fh = priv;
1020 struct cx231xx *dev = fh->dev;
1021
1022 f->fmt.pix.width = dev->width;
1023 f->fmt.pix.height = dev->height;
1024 f->fmt.pix.pixelformat = dev->format->fourcc;
1025 f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3;
1026 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height;
1027 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1028
1029 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1030
1031 return 0;
1032 }
1033
1034 static struct cx231xx_fmt *format_by_fourcc(unsigned int fourcc)
1035 {
1036 unsigned int i;
1037
1038 for (i = 0; i < ARRAY_SIZE(format); i++)
1039 if (format[i].fourcc == fourcc)
1040 return &format[i];
1041
1042 return NULL;
1043 }
1044
1045 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1046 struct v4l2_format *f)
1047 {
1048 struct cx231xx_fh *fh = priv;
1049 struct cx231xx *dev = fh->dev;
1050 unsigned int width = f->fmt.pix.width;
1051 unsigned int height = f->fmt.pix.height;
1052 unsigned int maxw = norm_maxw(dev);
1053 unsigned int maxh = norm_maxh(dev);
1054 struct cx231xx_fmt *fmt;
1055
1056 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1057 if (!fmt) {
1058 cx231xx_videodbg("Fourcc format (%08x) invalid.\n",
1059 f->fmt.pix.pixelformat);
1060 return -EINVAL;
1061 }
1062
1063 /* width must even because of the YUYV format
1064 height must be even because of interlacing */
1065 v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh, 1, 0);
1066
1067 f->fmt.pix.width = width;
1068 f->fmt.pix.height = height;
1069 f->fmt.pix.pixelformat = fmt->fourcc;
1070 f->fmt.pix.bytesperline = (dev->width * fmt->depth + 7) >> 3;
1071 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height;
1072 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1073 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1074
1075 return 0;
1076 }
1077
1078 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1079 struct v4l2_format *f)
1080 {
1081 struct cx231xx_fh *fh = priv;
1082 struct cx231xx *dev = fh->dev;
1083 int rc;
1084 struct cx231xx_fmt *fmt;
1085 struct v4l2_mbus_framefmt mbus_fmt;
1086
1087 rc = check_dev(dev);
1088 if (rc < 0)
1089 return rc;
1090
1091 vidioc_try_fmt_vid_cap(file, priv, f);
1092
1093 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1094 if (!fmt)
1095 return -EINVAL;
1096
1097 if (videobuf_queue_is_busy(&fh->vb_vidq)) {
1098 cx231xx_errdev("%s queue busy\n", __func__);
1099 return -EBUSY;
1100 }
1101
1102 if (dev->stream_on && !fh->stream_on) {
1103 cx231xx_errdev("%s device in use by another fh\n", __func__);
1104 return -EBUSY;
1105 }
1106
1107 /* set new image size */
1108 dev->width = f->fmt.pix.width;
1109 dev->height = f->fmt.pix.height;
1110 dev->format = fmt;
1111
1112 v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
1113 call_all(dev, video, s_mbus_fmt, &mbus_fmt);
1114 v4l2_fill_pix_format(&f->fmt.pix, &mbus_fmt);
1115
1116 return rc;
1117 }
1118
1119 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
1120 {
1121 struct cx231xx_fh *fh = priv;
1122 struct cx231xx *dev = fh->dev;
1123
1124 *id = dev->norm;
1125 return 0;
1126 }
1127
1128 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm)
1129 {
1130 struct cx231xx_fh *fh = priv;
1131 struct cx231xx *dev = fh->dev;
1132 struct v4l2_mbus_framefmt mbus_fmt;
1133 struct v4l2_format f;
1134 int rc;
1135
1136 rc = check_dev(dev);
1137 if (rc < 0)
1138 return rc;
1139
1140 cx231xx_info("vidioc_s_std : 0x%x\n", (unsigned int)*norm);
1141
1142 dev->norm = *norm;
1143
1144 /* Adjusts width/height, if needed */
1145 f.fmt.pix.width = dev->width;
1146 f.fmt.pix.height = dev->height;
1147 vidioc_try_fmt_vid_cap(file, priv, &f);
1148
1149 call_all(dev, core, s_std, dev->norm);
1150
1151 /* We need to reset basic properties in the decoder related to
1152 resolution (since a standard change effects things like the number
1153 of lines in VACT, etc) */
1154 v4l2_fill_mbus_format(&mbus_fmt, &f.fmt.pix, V4L2_MBUS_FMT_FIXED);
1155 call_all(dev, video, s_mbus_fmt, &mbus_fmt);
1156 v4l2_fill_pix_format(&f.fmt.pix, &mbus_fmt);
1157
1158 /* set new image size */
1159 dev->width = f.fmt.pix.width;
1160 dev->height = f.fmt.pix.height;
1161
1162 /* do mode control overrides */
1163 cx231xx_do_mode_ctrl_overrides(dev);
1164
1165 return 0;
1166 }
1167
1168 static const char *iname[] = {
1169 [CX231XX_VMUX_COMPOSITE1] = "Composite1",
1170 [CX231XX_VMUX_SVIDEO] = "S-Video",
1171 [CX231XX_VMUX_TELEVISION] = "Television",
1172 [CX231XX_VMUX_CABLE] = "Cable TV",
1173 [CX231XX_VMUX_DVB] = "DVB",
1174 [CX231XX_VMUX_DEBUG] = "for debug only",
1175 };
1176
1177 static int vidioc_enum_input(struct file *file, void *priv,
1178 struct v4l2_input *i)
1179 {
1180 struct cx231xx_fh *fh = priv;
1181 struct cx231xx *dev = fh->dev;
1182 u32 gen_stat;
1183 unsigned int ret, n;
1184
1185 n = i->index;
1186 if (n >= MAX_CX231XX_INPUT)
1187 return -EINVAL;
1188 if (0 == INPUT(n)->type)
1189 return -EINVAL;
1190
1191 i->index = n;
1192 i->type = V4L2_INPUT_TYPE_CAMERA;
1193
1194 strcpy(i->name, iname[INPUT(n)->type]);
1195
1196 if ((CX231XX_VMUX_TELEVISION == INPUT(n)->type) ||
1197 (CX231XX_VMUX_CABLE == INPUT(n)->type))
1198 i->type = V4L2_INPUT_TYPE_TUNER;
1199
1200 i->std = dev->vdev->tvnorms;
1201
1202 /* If they are asking about the active input, read signal status */
1203 if (n == dev->video_input) {
1204 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1205 GEN_STAT, 2, &gen_stat, 4);
1206 if (ret > 0) {
1207 if ((gen_stat & FLD_VPRES) == 0x00)
1208 i->status |= V4L2_IN_ST_NO_SIGNAL;
1209 if ((gen_stat & FLD_HLOCK) == 0x00)
1210 i->status |= V4L2_IN_ST_NO_H_LOCK;
1211 }
1212 }
1213
1214 return 0;
1215 }
1216
1217 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1218 {
1219 struct cx231xx_fh *fh = priv;
1220 struct cx231xx *dev = fh->dev;
1221
1222 *i = dev->video_input;
1223
1224 return 0;
1225 }
1226
1227 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1228 {
1229 struct cx231xx_fh *fh = priv;
1230 struct cx231xx *dev = fh->dev;
1231 int rc;
1232
1233 dev->mode_tv = 0;
1234 rc = check_dev(dev);
1235 if (rc < 0)
1236 return rc;
1237
1238 if (i >= MAX_CX231XX_INPUT)
1239 return -EINVAL;
1240 if (0 == INPUT(i)->type)
1241 return -EINVAL;
1242
1243 video_mux(dev, i);
1244
1245 if (INPUT(i)->type == CX231XX_VMUX_TELEVISION ||
1246 INPUT(i)->type == CX231XX_VMUX_CABLE) {
1247 /* There's a tuner, so reset the standard and put it on the
1248 last known frequency (since it was probably powered down
1249 until now */
1250 call_all(dev, core, s_std, dev->norm);
1251 }
1252
1253 return 0;
1254 }
1255
1256 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1257 {
1258 struct cx231xx_fh *fh = priv;
1259 struct cx231xx *dev = fh->dev;
1260
1261 switch (a->index) {
1262 case CX231XX_AMUX_VIDEO:
1263 strcpy(a->name, "Television");
1264 break;
1265 case CX231XX_AMUX_LINE_IN:
1266 strcpy(a->name, "Line In");
1267 break;
1268 default:
1269 return -EINVAL;
1270 }
1271
1272 a->index = dev->ctl_ainput;
1273 a->capability = V4L2_AUDCAP_STEREO;
1274
1275 return 0;
1276 }
1277
1278 static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
1279 {
1280 struct cx231xx_fh *fh = priv;
1281 struct cx231xx *dev = fh->dev;
1282 int status = 0;
1283
1284 /* Doesn't allow manual routing */
1285 if (a->index != dev->ctl_ainput)
1286 return -EINVAL;
1287
1288 dev->ctl_ainput = INPUT(a->index)->amux;
1289 status = cx231xx_set_audio_input(dev, dev->ctl_ainput);
1290
1291 return status;
1292 }
1293
1294 static int vidioc_queryctrl(struct file *file, void *priv,
1295 struct v4l2_queryctrl *qc)
1296 {
1297 struct cx231xx_fh *fh = priv;
1298 struct cx231xx *dev = fh->dev;
1299 int id = qc->id;
1300 int i;
1301 int rc;
1302
1303 rc = check_dev(dev);
1304 if (rc < 0)
1305 return rc;
1306
1307 qc->id = v4l2_ctrl_next(ctrl_classes, qc->id);
1308 if (unlikely(qc->id == 0))
1309 return -EINVAL;
1310
1311 memset(qc, 0, sizeof(*qc));
1312
1313 qc->id = id;
1314
1315 if (qc->id < V4L2_CID_BASE || qc->id >= V4L2_CID_LASTP1)
1316 return -EINVAL;
1317
1318 for (i = 0; i < CX231XX_CTLS; i++)
1319 if (cx231xx_ctls[i].v.id == qc->id)
1320 break;
1321
1322 if (i == CX231XX_CTLS) {
1323 *qc = no_ctl;
1324 return 0;
1325 }
1326 *qc = cx231xx_ctls[i].v;
1327
1328 call_all(dev, core, queryctrl, qc);
1329
1330 if (qc->type)
1331 return 0;
1332 else
1333 return -EINVAL;
1334 }
1335
1336 static int vidioc_g_ctrl(struct file *file, void *priv,
1337 struct v4l2_control *ctrl)
1338 {
1339 struct cx231xx_fh *fh = priv;
1340 struct cx231xx *dev = fh->dev;
1341 int rc;
1342
1343 rc = check_dev(dev);
1344 if (rc < 0)
1345 return rc;
1346
1347 call_all(dev, core, g_ctrl, ctrl);
1348 return rc;
1349 }
1350
1351 static int vidioc_s_ctrl(struct file *file, void *priv,
1352 struct v4l2_control *ctrl)
1353 {
1354 struct cx231xx_fh *fh = priv;
1355 struct cx231xx *dev = fh->dev;
1356 int rc;
1357
1358 rc = check_dev(dev);
1359 if (rc < 0)
1360 return rc;
1361
1362 call_all(dev, core, s_ctrl, ctrl);
1363 return rc;
1364 }
1365
1366 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1367 {
1368 struct cx231xx_fh *fh = priv;
1369 struct cx231xx *dev = fh->dev;
1370 int rc;
1371
1372 rc = check_dev(dev);
1373 if (rc < 0)
1374 return rc;
1375
1376 if (0 != t->index)
1377 return -EINVAL;
1378
1379 strcpy(t->name, "Tuner");
1380
1381 t->type = V4L2_TUNER_ANALOG_TV;
1382 t->capability = V4L2_TUNER_CAP_NORM;
1383 t->rangehigh = 0xffffffffUL;
1384 t->signal = 0xffff; /* LOCKED */
1385
1386 return 0;
1387 }
1388
1389 static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1390 {
1391 struct cx231xx_fh *fh = priv;
1392 struct cx231xx *dev = fh->dev;
1393 int rc;
1394
1395 rc = check_dev(dev);
1396 if (rc < 0)
1397 return rc;
1398
1399 if (0 != t->index)
1400 return -EINVAL;
1401 #if 0
1402 call_all(dev, tuner, s_tuner, t);
1403 #endif
1404 return 0;
1405 }
1406
1407 static int vidioc_g_frequency(struct file *file, void *priv,
1408 struct v4l2_frequency *f)
1409 {
1410 struct cx231xx_fh *fh = priv;
1411 struct cx231xx *dev = fh->dev;
1412
1413 f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1414 f->frequency = dev->ctl_freq;
1415
1416 call_all(dev, tuner, g_frequency, f);
1417
1418 return 0;
1419 }
1420
1421 static int vidioc_s_frequency(struct file *file, void *priv,
1422 struct v4l2_frequency *f)
1423 {
1424 struct cx231xx_fh *fh = priv;
1425 struct cx231xx *dev = fh->dev;
1426 int rc;
1427 u32 if_frequency = 5400000;
1428
1429 cx231xx_info("Enter vidioc_s_frequency()f->frequency=%d;f->type=%d\n",
1430 f->frequency, f->type);
1431 /*cx231xx_info("f->type: 1-radio 2-analogTV 3-digitalTV\n");*/
1432
1433 rc = check_dev(dev);
1434 if (rc < 0)
1435 return rc;
1436
1437 if (0 != f->tuner)
1438 return -EINVAL;
1439
1440 if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1441 return -EINVAL;
1442 if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1443 return -EINVAL;
1444
1445 /* set pre channel change settings in DIF first */
1446 rc = cx231xx_tuner_pre_channel_change(dev);
1447
1448 dev->ctl_freq = f->frequency;
1449 call_all(dev, tuner, s_frequency, f);
1450
1451 /* set post channel change settings in DIF first */
1452 rc = cx231xx_tuner_post_channel_change(dev);
1453
1454 if (dev->tuner_type == TUNER_NXP_TDA18271) {
1455 if (dev->norm & (V4L2_STD_MN | V4L2_STD_NTSC_443))
1456 if_frequency = 5400000; /*5.4MHz */
1457 else if (dev->norm & V4L2_STD_B)
1458 if_frequency = 6000000; /*6.0MHz */
1459 else if (dev->norm & (V4L2_STD_PAL_DK | V4L2_STD_SECAM_DK))
1460 if_frequency = 6900000; /*6.9MHz */
1461 else if (dev->norm & V4L2_STD_GH)
1462 if_frequency = 7100000; /*7.1MHz */
1463 else if (dev->norm & V4L2_STD_PAL_I)
1464 if_frequency = 7250000; /*7.25MHz */
1465 else if (dev->norm & V4L2_STD_SECAM_L)
1466 if_frequency = 6900000; /*6.9MHz */
1467 else if (dev->norm & V4L2_STD_SECAM_LC)
1468 if_frequency = 1250000; /*1.25MHz */
1469
1470 cx231xx_info("if_frequency is set to %d\n", if_frequency);
1471 cx231xx_set_Colibri_For_LowIF(dev, if_frequency, 1, 1);
1472
1473 update_HH_register_after_set_DIF(dev);
1474 }
1475
1476 cx231xx_info("Set New FREQUENCY to %d\n", f->frequency);
1477
1478 return rc;
1479 }
1480
1481 #ifdef CONFIG_VIDEO_ADV_DEBUG
1482
1483 /*
1484 -R, --list-registers=type=<host/i2cdrv/i2caddr>,
1485 chip=<chip>[,min=<addr>,max=<addr>]
1486 dump registers from <min> to <max> [VIDIOC_DBG_G_REGISTER]
1487 -r, --set-register=type=<host/i2cdrv/i2caddr>,
1488 chip=<chip>,reg=<addr>,val=<val>
1489 set the register [VIDIOC_DBG_S_REGISTER]
1490
1491 if type == host, then <chip> is the hosts chip ID (default 0)
1492 if type == i2cdrv (default), then <chip> is the I2C driver name or ID
1493 if type == i2caddr, then <chip> is the 7-bit I2C address
1494 */
1495
1496 static int vidioc_g_register(struct file *file, void *priv,
1497 struct v4l2_dbg_register *reg)
1498 {
1499 struct cx231xx_fh *fh = priv;
1500 struct cx231xx *dev = fh->dev;
1501 int ret = 0;
1502 u8 value[4] = { 0, 0, 0, 0 };
1503 u32 data = 0;
1504
1505 switch (reg->match.type) {
1506 case V4L2_CHIP_MATCH_HOST:
1507 switch (reg->match.addr) {
1508 case 0: /* Cx231xx - internal registers */
1509 ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
1510 (u16)reg->reg, value, 4);
1511 reg->val = value[0] | value[1] << 8 |
1512 value[2] << 16 | value[3] << 24;
1513 break;
1514 case 1: /* AFE - read byte */
1515 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1516 (u16)reg->reg, 2, &data, 1);
1517 reg->val = le32_to_cpu(data & 0xff);
1518 break;
1519 case 14: /* AFE - read dword */
1520 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1521 (u16)reg->reg, 2, &data, 4);
1522 reg->val = le32_to_cpu(data);
1523 break;
1524 case 2: /* Video Block - read byte */
1525 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1526 (u16)reg->reg, 2, &data, 1);
1527 reg->val = le32_to_cpu(data & 0xff);
1528 break;
1529 case 24: /* Video Block - read dword */
1530 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1531 (u16)reg->reg, 2, &data, 4);
1532 reg->val = le32_to_cpu(data);
1533 break;
1534 case 3: /* I2S block - read byte */
1535 ret = cx231xx_read_i2c_data(dev,
1536 I2S_BLK_DEVICE_ADDRESS,
1537 (u16)reg->reg, 1,
1538 &data, 1);
1539 reg->val = le32_to_cpu(data & 0xff);
1540 break;
1541 case 34: /* I2S Block - read dword */
1542 ret =
1543 cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1544 (u16)reg->reg, 1, &data, 4);
1545 reg->val = le32_to_cpu(data);
1546 break;
1547 }
1548 return ret < 0 ? ret : 0;
1549
1550 case V4L2_CHIP_MATCH_I2C_DRIVER:
1551 call_all(dev, core, g_register, reg);
1552 return 0;
1553 case V4L2_CHIP_MATCH_I2C_ADDR:/*for register debug*/
1554 switch (reg->match.addr) {
1555 case 0: /* Cx231xx - internal registers */
1556 ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
1557 (u16)reg->reg, value, 4);
1558 reg->val = value[0] | value[1] << 8 |
1559 value[2] << 16 | value[3] << 24;
1560
1561 break;
1562 case 0x600:/* AFE - read byte */
1563 ret = cx231xx_read_i2c_master(dev, AFE_DEVICE_ADDRESS,
1564 (u16)reg->reg, 2,
1565 &data, 1 , 0);
1566 reg->val = le32_to_cpu(data & 0xff);
1567 break;
1568
1569 case 0x880:/* Video Block - read byte */
1570 if (reg->reg < 0x0b) {
1571 ret = cx231xx_read_i2c_master(dev,
1572 VID_BLK_I2C_ADDRESS,
1573 (u16)reg->reg, 2,
1574 &data, 1 , 0);
1575 reg->val = le32_to_cpu(data & 0xff);
1576 } else {
1577 ret = cx231xx_read_i2c_master(dev,
1578 VID_BLK_I2C_ADDRESS,
1579 (u16)reg->reg, 2,
1580 &data, 4 , 0);
1581 reg->val = le32_to_cpu(data);
1582 }
1583 break;
1584 case 0x980:
1585 ret = cx231xx_read_i2c_master(dev,
1586 I2S_BLK_DEVICE_ADDRESS,
1587 (u16)reg->reg, 1,
1588 &data, 1 , 0);
1589 reg->val = le32_to_cpu(data & 0xff);
1590 break;
1591 case 0x400:
1592 ret =
1593 cx231xx_read_i2c_master(dev, 0x40,
1594 (u16)reg->reg, 1,
1595 &data, 1 , 0);
1596 reg->val = le32_to_cpu(data & 0xff);
1597 break;
1598 case 0xc01:
1599 ret =
1600 cx231xx_read_i2c_master(dev, 0xc0,
1601 (u16)reg->reg, 2,
1602 &data, 38, 1);
1603 reg->val = le32_to_cpu(data);
1604 break;
1605 case 0x022:
1606 ret =
1607 cx231xx_read_i2c_master(dev, 0x02,
1608 (u16)reg->reg, 1,
1609 &data, 1, 2);
1610 reg->val = le32_to_cpu(data & 0xff);
1611 break;
1612 case 0x322:
1613 ret = cx231xx_read_i2c_master(dev,
1614 0x32,
1615 (u16)reg->reg, 1,
1616 &data, 4 , 2);
1617 reg->val = le32_to_cpu(data);
1618 break;
1619 case 0x342:
1620 ret = cx231xx_read_i2c_master(dev,
1621 0x34,
1622 (u16)reg->reg, 1,
1623 &data, 4 , 2);
1624 reg->val = le32_to_cpu(data);
1625 break;
1626
1627 default:
1628 cx231xx_info("no match device address!!\n");
1629 break;
1630 }
1631 return ret < 0 ? ret : 0;
1632 /*return -EINVAL;*/
1633 default:
1634 if (!v4l2_chip_match_host(&reg->match))
1635 return -EINVAL;
1636 }
1637
1638 call_all(dev, core, g_register, reg);
1639
1640 return ret;
1641 }
1642
1643 static int vidioc_s_register(struct file *file, void *priv,
1644 struct v4l2_dbg_register *reg)
1645 {
1646 struct cx231xx_fh *fh = priv;
1647 struct cx231xx *dev = fh->dev;
1648 int ret = 0;
1649 __le64 buf;
1650 u32 value;
1651 u8 data[4] = { 0, 0, 0, 0 };
1652
1653 buf = cpu_to_le64(reg->val);
1654
1655 switch (reg->match.type) {
1656 case V4L2_CHIP_MATCH_HOST:
1657 {
1658 value = (u32) buf & 0xffffffff;
1659
1660 switch (reg->match.addr) {
1661 case 0: /* cx231xx internal registers */
1662 data[0] = (u8) value;
1663 data[1] = (u8) (value >> 8);
1664 data[2] = (u8) (value >> 16);
1665 data[3] = (u8) (value >> 24);
1666 ret = cx231xx_write_ctrl_reg(dev,
1667 VRT_SET_REGISTER,
1668 (u16)reg->reg, data,
1669 4);
1670 break;
1671 case 1: /* AFE - read byte */
1672 ret = cx231xx_write_i2c_data(dev,
1673 AFE_DEVICE_ADDRESS,
1674 (u16)reg->reg, 2,
1675 value, 1);
1676 break;
1677 case 14: /* AFE - read dword */
1678 ret = cx231xx_write_i2c_data(dev,
1679 AFE_DEVICE_ADDRESS,
1680 (u16)reg->reg, 2,
1681 value, 4);
1682 break;
1683 case 2: /* Video Block - read byte */
1684 ret =
1685 cx231xx_write_i2c_data(dev,
1686 VID_BLK_I2C_ADDRESS,
1687 (u16)reg->reg, 2,
1688 value, 1);
1689 break;
1690 case 24: /* Video Block - read dword */
1691 ret =
1692 cx231xx_write_i2c_data(dev,
1693 VID_BLK_I2C_ADDRESS,
1694 (u16)reg->reg, 2,
1695 value, 4);
1696 break;
1697 case 3: /* I2S block - read byte */
1698 ret =
1699 cx231xx_write_i2c_data(dev,
1700 I2S_BLK_DEVICE_ADDRESS,
1701 (u16)reg->reg, 1,
1702 value, 1);
1703 break;
1704 case 34: /* I2S block - read dword */
1705 ret =
1706 cx231xx_write_i2c_data(dev,
1707 I2S_BLK_DEVICE_ADDRESS,
1708 (u16)reg->reg, 1,
1709 value, 4);
1710 break;
1711 }
1712 }
1713 return ret < 0 ? ret : 0;
1714 case V4L2_CHIP_MATCH_I2C_ADDR:
1715 {
1716 value = (u32) buf & 0xffffffff;
1717
1718 switch (reg->match.addr) {
1719 case 0:/*cx231xx internal registers*/
1720 data[0] = (u8) value;
1721 data[1] = (u8) (value >> 8);
1722 data[2] = (u8) (value >> 16);
1723 data[3] = (u8) (value >> 24);
1724 ret = cx231xx_write_ctrl_reg(dev,
1725 VRT_SET_REGISTER,
1726 (u16)reg->reg, data,
1727 4);
1728 break;
1729 case 0x600:/* AFE - read byte */
1730 ret = cx231xx_write_i2c_master(dev,
1731 AFE_DEVICE_ADDRESS,
1732 (u16)reg->reg, 2,
1733 value, 1 , 0);
1734 break;
1735
1736 case 0x880:/* Video Block - read byte */
1737 if (reg->reg < 0x0b)
1738 cx231xx_write_i2c_master(dev,
1739 VID_BLK_I2C_ADDRESS,
1740 (u16)reg->reg, 2,
1741 value, 1, 0);
1742 else
1743 cx231xx_write_i2c_master(dev,
1744 VID_BLK_I2C_ADDRESS,
1745 (u16)reg->reg, 2,
1746 value, 4, 0);
1747 break;
1748 case 0x980:
1749 ret =
1750 cx231xx_write_i2c_master(dev,
1751 I2S_BLK_DEVICE_ADDRESS,
1752 (u16)reg->reg, 1,
1753 value, 1, 0);
1754 break;
1755 case 0x400:
1756 ret =
1757 cx231xx_write_i2c_master(dev,
1758 0x40,
1759 (u16)reg->reg, 1,
1760 value, 1, 0);
1761 break;
1762 case 0xc01:
1763 ret =
1764 cx231xx_write_i2c_master(dev,
1765 0xc0,
1766 (u16)reg->reg, 1,
1767 value, 1, 1);
1768 break;
1769
1770 case 0x022:
1771 ret =
1772 cx231xx_write_i2c_master(dev,
1773 0x02,
1774 (u16)reg->reg, 1,
1775 value, 1, 2);
1776 case 0x322:
1777 ret =
1778 cx231xx_write_i2c_master(dev,
1779 0x32,
1780 (u16)reg->reg, 1,
1781 value, 4, 2);
1782 break;
1783
1784 case 0x342:
1785 ret =
1786 cx231xx_write_i2c_master(dev,
1787 0x34,
1788 (u16)reg->reg, 1,
1789 value, 4, 2);
1790 break;
1791 default:
1792 cx231xx_info("no match device address, "
1793 "the value is %x\n", reg->match.addr);
1794 break;
1795
1796 }
1797
1798 }
1799 default:
1800 break;
1801 }
1802
1803 call_all(dev, core, s_register, reg);
1804
1805 return ret;
1806 }
1807 #endif
1808
1809 static int vidioc_cropcap(struct file *file, void *priv,
1810 struct v4l2_cropcap *cc)
1811 {
1812 struct cx231xx_fh *fh = priv;
1813 struct cx231xx *dev = fh->dev;
1814
1815 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1816 return -EINVAL;
1817
1818 cc->bounds.left = 0;
1819 cc->bounds.top = 0;
1820 cc->bounds.width = dev->width;
1821 cc->bounds.height = dev->height;
1822 cc->defrect = cc->bounds;
1823 cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */
1824 cc->pixelaspect.denominator = 59;
1825
1826 return 0;
1827 }
1828
1829 static int vidioc_streamon(struct file *file, void *priv,
1830 enum v4l2_buf_type type)
1831 {
1832 struct cx231xx_fh *fh = priv;
1833 struct cx231xx *dev = fh->dev;
1834 int rc;
1835
1836 rc = check_dev(dev);
1837 if (rc < 0)
1838 return rc;
1839
1840 rc = res_get(fh);
1841
1842 if (likely(rc >= 0))
1843 rc = videobuf_streamon(&fh->vb_vidq);
1844
1845 call_all(dev, video, s_stream, 1);
1846
1847 return rc;
1848 }
1849
1850 static int vidioc_streamoff(struct file *file, void *priv,
1851 enum v4l2_buf_type type)
1852 {
1853 struct cx231xx_fh *fh = priv;
1854 struct cx231xx *dev = fh->dev;
1855 int rc;
1856
1857 rc = check_dev(dev);
1858 if (rc < 0)
1859 return rc;
1860
1861 if ((fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
1862 (fh->type != V4L2_BUF_TYPE_VBI_CAPTURE))
1863 return -EINVAL;
1864 if (type != fh->type)
1865 return -EINVAL;
1866
1867 cx25840_call(dev, video, s_stream, 0);
1868
1869 videobuf_streamoff(&fh->vb_vidq);
1870 res_free(fh);
1871
1872 return 0;
1873 }
1874
1875 static int vidioc_querycap(struct file *file, void *priv,
1876 struct v4l2_capability *cap)
1877 {
1878 struct cx231xx_fh *fh = priv;
1879 struct cx231xx *dev = fh->dev;
1880
1881 strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
1882 strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
1883 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
1884
1885 cap->capabilities = V4L2_CAP_VBI_CAPTURE |
1886 #if 0
1887 V4L2_CAP_SLICED_VBI_CAPTURE |
1888 #endif
1889 V4L2_CAP_VIDEO_CAPTURE |
1890 V4L2_CAP_AUDIO |
1891 V4L2_CAP_READWRITE |
1892 V4L2_CAP_STREAMING;
1893
1894 if (dev->tuner_type != TUNER_ABSENT)
1895 cap->capabilities |= V4L2_CAP_TUNER;
1896
1897 return 0;
1898 }
1899
1900 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1901 struct v4l2_fmtdesc *f)
1902 {
1903 if (unlikely(f->index >= ARRAY_SIZE(format)))
1904 return -EINVAL;
1905
1906 strlcpy(f->description, format[f->index].name, sizeof(f->description));
1907 f->pixelformat = format[f->index].fourcc;
1908
1909 return 0;
1910 }
1911
1912 /* Sliced VBI ioctls */
1913 static int vidioc_g_fmt_sliced_vbi_cap(struct file *file, void *priv,
1914 struct v4l2_format *f)
1915 {
1916 struct cx231xx_fh *fh = priv;
1917 struct cx231xx *dev = fh->dev;
1918 int rc;
1919
1920 rc = check_dev(dev);
1921 if (rc < 0)
1922 return rc;
1923
1924 f->fmt.sliced.service_set = 0;
1925
1926 call_all(dev, vbi, g_sliced_fmt, &f->fmt.sliced);
1927
1928 if (f->fmt.sliced.service_set == 0)
1929 rc = -EINVAL;
1930
1931 return rc;
1932 }
1933
1934 static int vidioc_try_set_sliced_vbi_cap(struct file *file, void *priv,
1935 struct v4l2_format *f)
1936 {
1937 struct cx231xx_fh *fh = priv;
1938 struct cx231xx *dev = fh->dev;
1939 int rc;
1940
1941 rc = check_dev(dev);
1942 if (rc < 0)
1943 return rc;
1944
1945 call_all(dev, vbi, g_sliced_fmt, &f->fmt.sliced);
1946
1947 if (f->fmt.sliced.service_set == 0)
1948 return -EINVAL;
1949
1950 return 0;
1951 }
1952
1953 /* RAW VBI ioctls */
1954
1955 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1956 struct v4l2_format *f)
1957 {
1958 struct cx231xx_fh *fh = priv;
1959 struct cx231xx *dev = fh->dev;
1960 f->fmt.vbi.sampling_rate = 6750000 * 4;
1961 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1962 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1963 f->fmt.vbi.offset = 0;
1964 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1965 PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1966 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1967 PAL_VBI_LINES : NTSC_VBI_LINES;
1968 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1969 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1970 f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1971
1972 return 0;
1973
1974 }
1975
1976 static int vidioc_try_fmt_vbi_cap(struct file *file, void *priv,
1977 struct v4l2_format *f)
1978 {
1979 struct cx231xx_fh *fh = priv;
1980 struct cx231xx *dev = fh->dev;
1981
1982 if (dev->vbi_stream_on && !fh->stream_on) {
1983 cx231xx_errdev("%s device in use by another fh\n", __func__);
1984 return -EBUSY;
1985 }
1986
1987 f->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1988 f->fmt.vbi.sampling_rate = 6750000 * 4;
1989 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1990 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1991 f->fmt.vbi.offset = 0;
1992 f->fmt.vbi.flags = 0;
1993 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1994 PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1995 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1996 PAL_VBI_LINES : NTSC_VBI_LINES;
1997 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1998 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1999 f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
2000
2001 return 0;
2002
2003 }
2004
2005 static int vidioc_reqbufs(struct file *file, void *priv,
2006 struct v4l2_requestbuffers *rb)
2007 {
2008 struct cx231xx_fh *fh = priv;
2009 struct cx231xx *dev = fh->dev;
2010 int rc;
2011
2012 rc = check_dev(dev);
2013 if (rc < 0)
2014 return rc;
2015
2016 return videobuf_reqbufs(&fh->vb_vidq, rb);
2017 }
2018
2019 static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *b)
2020 {
2021 struct cx231xx_fh *fh = priv;
2022 struct cx231xx *dev = fh->dev;
2023 int rc;
2024
2025 rc = check_dev(dev);
2026 if (rc < 0)
2027 return rc;
2028
2029 return videobuf_querybuf(&fh->vb_vidq, b);
2030 }
2031
2032 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2033 {
2034 struct cx231xx_fh *fh = priv;
2035 struct cx231xx *dev = fh->dev;
2036 int rc;
2037
2038 rc = check_dev(dev);
2039 if (rc < 0)
2040 return rc;
2041
2042 return videobuf_qbuf(&fh->vb_vidq, b);
2043 }
2044
2045 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2046 {
2047 struct cx231xx_fh *fh = priv;
2048 struct cx231xx *dev = fh->dev;
2049 int rc;
2050
2051 rc = check_dev(dev);
2052 if (rc < 0)
2053 return rc;
2054
2055 return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK);
2056 }
2057
2058 /* ----------------------------------------------------------- */
2059 /* RADIO ESPECIFIC IOCTLS */
2060 /* ----------------------------------------------------------- */
2061
2062 static int radio_querycap(struct file *file, void *priv,
2063 struct v4l2_capability *cap)
2064 {
2065 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
2066
2067 strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
2068 strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
2069 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
2070
2071 cap->capabilities = V4L2_CAP_TUNER;
2072 return 0;
2073 }
2074
2075 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
2076 {
2077 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
2078
2079 if (unlikely(t->index > 0))
2080 return -EINVAL;
2081
2082 strcpy(t->name, "Radio");
2083 t->type = V4L2_TUNER_RADIO;
2084
2085 call_all(dev, tuner, s_tuner, t);
2086
2087 return 0;
2088 }
2089
2090 static int radio_enum_input(struct file *file, void *priv, struct v4l2_input *i)
2091 {
2092 if (i->index != 0)
2093 return -EINVAL;
2094 strcpy(i->name, "Radio");
2095 i->type = V4L2_INPUT_TYPE_TUNER;
2096
2097 return 0;
2098 }
2099
2100 static int radio_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
2101 {
2102 if (unlikely(a->index))
2103 return -EINVAL;
2104
2105 strcpy(a->name, "Radio");
2106 return 0;
2107 }
2108
2109 static int radio_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
2110 {
2111 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
2112
2113 if (0 != t->index)
2114 return -EINVAL;
2115
2116 call_all(dev, tuner, s_tuner, t);
2117
2118 return 0;
2119 }
2120
2121 static int radio_s_audio(struct file *file, void *fh, struct v4l2_audio *a)
2122 {
2123 return 0;
2124 }
2125
2126 static int radio_s_input(struct file *file, void *fh, unsigned int i)
2127 {
2128 return 0;
2129 }
2130
2131 static int radio_queryctrl(struct file *file, void *priv,
2132 struct v4l2_queryctrl *c)
2133 {
2134 int i;
2135
2136 if (c->id < V4L2_CID_BASE || c->id >= V4L2_CID_LASTP1)
2137 return -EINVAL;
2138 if (c->id == V4L2_CID_AUDIO_MUTE) {
2139 for (i = 0; i < CX231XX_CTLS; i++) {
2140 if (cx231xx_ctls[i].v.id == c->id)
2141 break;
2142 }
2143 if (i == CX231XX_CTLS)
2144 return -EINVAL;
2145 *c = cx231xx_ctls[i].v;
2146 } else
2147 *c = no_ctl;
2148 return 0;
2149 }
2150
2151 /*
2152 * cx231xx_v4l2_open()
2153 * inits the device and starts isoc transfer
2154 */
2155 static int cx231xx_v4l2_open(struct file *filp)
2156 {
2157 int errCode = 0, radio = 0;
2158 struct video_device *vdev = video_devdata(filp);
2159 struct cx231xx *dev = video_drvdata(filp);
2160 struct cx231xx_fh *fh;
2161 enum v4l2_buf_type fh_type = 0;
2162
2163 switch (vdev->vfl_type) {
2164 case VFL_TYPE_GRABBER:
2165 fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2166 break;
2167 case VFL_TYPE_VBI:
2168 fh_type = V4L2_BUF_TYPE_VBI_CAPTURE;
2169 break;
2170 case VFL_TYPE_RADIO:
2171 radio = 1;
2172 break;
2173 }
2174
2175 cx231xx_videodbg("open dev=%s type=%s users=%d\n",
2176 video_device_node_name(vdev), v4l2_type_names[fh_type],
2177 dev->users);
2178
2179 #if 0
2180 errCode = cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
2181 if (errCode < 0) {
2182 cx231xx_errdev
2183 ("Device locked on digital mode. Can't open analog\n");
2184 return -EBUSY;
2185 }
2186 #endif
2187
2188 fh = kzalloc(sizeof(struct cx231xx_fh), GFP_KERNEL);
2189 if (!fh) {
2190 cx231xx_errdev("cx231xx-video.c: Out of memory?!\n");
2191 return -ENOMEM;
2192 }
2193 fh->dev = dev;
2194 fh->radio = radio;
2195 fh->type = fh_type;
2196 filp->private_data = fh;
2197
2198 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
2199 dev->width = norm_maxw(dev);
2200 dev->height = norm_maxh(dev);
2201
2202 /* Power up in Analog TV mode */
2203 if (dev->board.external_av)
2204 cx231xx_set_power_mode(dev,
2205 POLARIS_AVMODE_ENXTERNAL_AV);
2206 else
2207 cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV);
2208
2209 #if 0
2210 cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
2211 #endif
2212
2213 /* set video alternate setting */
2214 cx231xx_set_video_alternate(dev);
2215
2216 /* Needed, since GPIO might have disabled power of
2217 some i2c device */
2218 cx231xx_config_i2c(dev);
2219
2220 /* device needs to be initialized before isoc transfer */
2221 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
2222
2223 }
2224 if (fh->radio) {
2225 cx231xx_videodbg("video_open: setting radio device\n");
2226
2227 /* cx231xx_start_radio(dev); */
2228
2229 call_all(dev, tuner, s_radio);
2230 }
2231
2232 dev->users++;
2233
2234 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
2235 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_video_qops,
2236 NULL, &dev->video_mode.slock,
2237 fh->type, V4L2_FIELD_INTERLACED,
2238 sizeof(struct cx231xx_buffer),
2239 fh, &dev->lock);
2240 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
2241 /* Set the required alternate setting VBI interface works in
2242 Bulk mode only */
2243 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
2244
2245 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_vbi_qops,
2246 NULL, &dev->vbi_mode.slock,
2247 fh->type, V4L2_FIELD_SEQ_TB,
2248 sizeof(struct cx231xx_buffer),
2249 fh, &dev->lock);
2250 }
2251
2252 return errCode;
2253 }
2254
2255 /*
2256 * cx231xx_realease_resources()
2257 * unregisters the v4l2,i2c and usb devices
2258 * called when the device gets disconected or at module unload
2259 */
2260 void cx231xx_release_analog_resources(struct cx231xx *dev)
2261 {
2262
2263 /*FIXME: I2C IR should be disconnected */
2264
2265 if (dev->radio_dev) {
2266 if (video_is_registered(dev->radio_dev))
2267 video_unregister_device(dev->radio_dev);
2268 else
2269 video_device_release(dev->radio_dev);
2270 dev->radio_dev = NULL;
2271 }
2272 if (dev->vbi_dev) {
2273 cx231xx_info("V4L2 device %s deregistered\n",
2274 video_device_node_name(dev->vbi_dev));
2275 if (video_is_registered(dev->vbi_dev))
2276 video_unregister_device(dev->vbi_dev);
2277 else
2278 video_device_release(dev->vbi_dev);
2279 dev->vbi_dev = NULL;
2280 }
2281 if (dev->vdev) {
2282 cx231xx_info("V4L2 device %s deregistered\n",
2283 video_device_node_name(dev->vdev));
2284
2285 if (dev->board.has_417)
2286 cx231xx_417_unregister(dev);
2287
2288 if (video_is_registered(dev->vdev))
2289 video_unregister_device(dev->vdev);
2290 else
2291 video_device_release(dev->vdev);
2292 dev->vdev = NULL;
2293 }
2294 }
2295
2296 /*
2297 * cx231xx_v4l2_close()
2298 * stops streaming and deallocates all resources allocated by the v4l2
2299 * calls and ioctls
2300 */
2301 static int cx231xx_v4l2_close(struct file *filp)
2302 {
2303 struct cx231xx_fh *fh = filp->private_data;
2304 struct cx231xx *dev = fh->dev;
2305
2306 cx231xx_videodbg("users=%d\n", dev->users);
2307
2308 cx231xx_videodbg("users=%d\n", dev->users);
2309 if (res_check(fh))
2310 res_free(fh);
2311
2312 /*
2313 * To workaround error number=-71 on EP0 for VideoGrabber,
2314 * need exclude following.
2315 * FIXME: It is probably safe to remove most of these, as we're
2316 * now avoiding the alternate setting for INDEX_VANC
2317 */
2318 if (!dev->board.no_alt_vanc)
2319 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
2320 videobuf_stop(&fh->vb_vidq);
2321 videobuf_mmap_free(&fh->vb_vidq);
2322
2323 /* the device is already disconnect,
2324 free the remaining resources */
2325 if (dev->state & DEV_DISCONNECTED) {
2326 if (atomic_read(&dev->devlist_count) > 0) {
2327 cx231xx_release_resources(dev);
2328 kfree(dev);
2329 dev = NULL;
2330 return 0;
2331 }
2332 return 0;
2333 }
2334
2335 /* do this before setting alternate! */
2336 cx231xx_uninit_vbi_isoc(dev);
2337
2338 /* set alternate 0 */
2339 if (!dev->vbi_or_sliced_cc_mode)
2340 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
2341 else
2342 cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
2343
2344 kfree(fh);
2345 dev->users--;
2346 wake_up_interruptible_nr(&dev->open, 1);
2347 return 0;
2348 }
2349
2350 if (dev->users == 1) {
2351 videobuf_stop(&fh->vb_vidq);
2352 videobuf_mmap_free(&fh->vb_vidq);
2353
2354 /* the device is already disconnect,
2355 free the remaining resources */
2356 if (dev->state & DEV_DISCONNECTED) {
2357 cx231xx_release_resources(dev);
2358 kfree(dev);
2359 dev = NULL;
2360 return 0;
2361 }
2362
2363 /* Save some power by putting tuner to sleep */
2364 call_all(dev, core, s_power, 0);
2365
2366 /* do this before setting alternate! */
2367 if (dev->USE_ISO)
2368 cx231xx_uninit_isoc(dev);
2369 else
2370 cx231xx_uninit_bulk(dev);
2371 cx231xx_set_mode(dev, CX231XX_SUSPEND);
2372
2373 /* set alternate 0 */
2374 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
2375 }
2376 kfree(fh);
2377 dev->users--;
2378 wake_up_interruptible_nr(&dev->open, 1);
2379 return 0;
2380 }
2381
2382 /*
2383 * cx231xx_v4l2_read()
2384 * will allocate buffers when called for the first time
2385 */
2386 static ssize_t
2387 cx231xx_v4l2_read(struct file *filp, char __user *buf, size_t count,
2388 loff_t *pos)
2389 {
2390 struct cx231xx_fh *fh = filp->private_data;
2391 struct cx231xx *dev = fh->dev;
2392 int rc;
2393
2394 rc = check_dev(dev);
2395 if (rc < 0)
2396 return rc;
2397
2398 if ((fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
2399 (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)) {
2400 rc = res_get(fh);
2401
2402 if (unlikely(rc < 0))
2403 return rc;
2404
2405 return videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0,
2406 filp->f_flags & O_NONBLOCK);
2407 }
2408 return 0;
2409 }
2410
2411 /*
2412 * cx231xx_v4l2_poll()
2413 * will allocate buffers when called for the first time
2414 */
2415 static unsigned int cx231xx_v4l2_poll(struct file *filp, poll_table *wait)
2416 {
2417 struct cx231xx_fh *fh = filp->private_data;
2418 struct cx231xx *dev = fh->dev;
2419 int rc;
2420
2421 rc = check_dev(dev);
2422 if (rc < 0)
2423 return rc;
2424
2425 rc = res_get(fh);
2426
2427 if (unlikely(rc < 0))
2428 return POLLERR;
2429
2430 if ((V4L2_BUF_TYPE_VIDEO_CAPTURE == fh->type) ||
2431 (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type))
2432 return videobuf_poll_stream(filp, &fh->vb_vidq, wait);
2433 else
2434 return POLLERR;
2435 }
2436
2437 /*
2438 * cx231xx_v4l2_mmap()
2439 */
2440 static int cx231xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
2441 {
2442 struct cx231xx_fh *fh = filp->private_data;
2443 struct cx231xx *dev = fh->dev;
2444 int rc;
2445
2446 rc = check_dev(dev);
2447 if (rc < 0)
2448 return rc;
2449
2450 rc = res_get(fh);
2451
2452 if (unlikely(rc < 0))
2453 return rc;
2454
2455 rc = videobuf_mmap_mapper(&fh->vb_vidq, vma);
2456
2457 cx231xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n",
2458 (unsigned long)vma->vm_start,
2459 (unsigned long)vma->vm_end -
2460 (unsigned long)vma->vm_start, rc);
2461
2462 return rc;
2463 }
2464
2465 static const struct v4l2_file_operations cx231xx_v4l_fops = {
2466 .owner = THIS_MODULE,
2467 .open = cx231xx_v4l2_open,
2468 .release = cx231xx_v4l2_close,
2469 .read = cx231xx_v4l2_read,
2470 .poll = cx231xx_v4l2_poll,
2471 .mmap = cx231xx_v4l2_mmap,
2472 .unlocked_ioctl = video_ioctl2,
2473 };
2474
2475 static const struct v4l2_ioctl_ops video_ioctl_ops = {
2476 .vidioc_querycap = vidioc_querycap,
2477 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
2478 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
2479 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
2480 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
2481 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
2482 .vidioc_try_fmt_vbi_cap = vidioc_try_fmt_vbi_cap,
2483 .vidioc_s_fmt_vbi_cap = vidioc_try_fmt_vbi_cap,
2484 .vidioc_g_audio = vidioc_g_audio,
2485 .vidioc_s_audio = vidioc_s_audio,
2486 .vidioc_cropcap = vidioc_cropcap,
2487 .vidioc_g_fmt_sliced_vbi_cap = vidioc_g_fmt_sliced_vbi_cap,
2488 .vidioc_try_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap,
2489 .vidioc_reqbufs = vidioc_reqbufs,
2490 .vidioc_querybuf = vidioc_querybuf,
2491 .vidioc_qbuf = vidioc_qbuf,
2492 .vidioc_dqbuf = vidioc_dqbuf,
2493 .vidioc_s_std = vidioc_s_std,
2494 .vidioc_g_std = vidioc_g_std,
2495 .vidioc_enum_input = vidioc_enum_input,
2496 .vidioc_g_input = vidioc_g_input,
2497 .vidioc_s_input = vidioc_s_input,
2498 .vidioc_queryctrl = vidioc_queryctrl,
2499 .vidioc_g_ctrl = vidioc_g_ctrl,
2500 .vidioc_s_ctrl = vidioc_s_ctrl,
2501 .vidioc_streamon = vidioc_streamon,
2502 .vidioc_streamoff = vidioc_streamoff,
2503 .vidioc_g_tuner = vidioc_g_tuner,
2504 .vidioc_s_tuner = vidioc_s_tuner,
2505 .vidioc_g_frequency = vidioc_g_frequency,
2506 .vidioc_s_frequency = vidioc_s_frequency,
2507 #ifdef CONFIG_VIDEO_ADV_DEBUG
2508 .vidioc_g_register = vidioc_g_register,
2509 .vidioc_s_register = vidioc_s_register,
2510 #endif
2511 };
2512
2513 static struct video_device cx231xx_vbi_template;
2514
2515 static const struct video_device cx231xx_video_template = {
2516 .fops = &cx231xx_v4l_fops,
2517 .release = video_device_release,
2518 .ioctl_ops = &video_ioctl_ops,
2519 .tvnorms = V4L2_STD_ALL,
2520 .current_norm = V4L2_STD_PAL,
2521 };
2522
2523 static const struct v4l2_file_operations radio_fops = {
2524 .owner = THIS_MODULE,
2525 .open = cx231xx_v4l2_open,
2526 .release = cx231xx_v4l2_close,
2527 .ioctl = video_ioctl2,
2528 };
2529
2530 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
2531 .vidioc_querycap = radio_querycap,
2532 .vidioc_g_tuner = radio_g_tuner,
2533 .vidioc_enum_input = radio_enum_input,
2534 .vidioc_g_audio = radio_g_audio,
2535 .vidioc_s_tuner = radio_s_tuner,
2536 .vidioc_s_audio = radio_s_audio,
2537 .vidioc_s_input = radio_s_input,
2538 .vidioc_queryctrl = radio_queryctrl,
2539 .vidioc_g_ctrl = vidioc_g_ctrl,
2540 .vidioc_s_ctrl = vidioc_s_ctrl,
2541 .vidioc_g_frequency = vidioc_g_frequency,
2542 .vidioc_s_frequency = vidioc_s_frequency,
2543 #ifdef CONFIG_VIDEO_ADV_DEBUG
2544 .vidioc_g_register = vidioc_g_register,
2545 .vidioc_s_register = vidioc_s_register,
2546 #endif
2547 };
2548
2549 static struct video_device cx231xx_radio_template = {
2550 .name = "cx231xx-radio",
2551 .fops = &radio_fops,
2552 .ioctl_ops = &radio_ioctl_ops,
2553 };
2554
2555 /******************************** usb interface ******************************/
2556
2557 static struct video_device *cx231xx_vdev_init(struct cx231xx *dev,
2558 const struct video_device
2559 *template, const char *type_name)
2560 {
2561 struct video_device *vfd;
2562
2563 vfd = video_device_alloc();
2564 if (NULL == vfd)
2565 return NULL;
2566
2567 *vfd = *template;
2568 vfd->v4l2_dev = &dev->v4l2_dev;
2569 vfd->release = video_device_release;
2570 vfd->debug = video_debug;
2571 vfd->lock = &dev->lock;
2572
2573 snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
2574
2575 video_set_drvdata(vfd, dev);
2576 return vfd;
2577 }
2578
2579 int cx231xx_register_analog_devices(struct cx231xx *dev)
2580 {
2581 int ret;
2582
2583 cx231xx_info("%s: v4l2 driver version %s\n",
2584 dev->name, CX231XX_VERSION);
2585
2586 /* set default norm */
2587 /*dev->norm = cx231xx_video_template.current_norm; */
2588 dev->width = norm_maxw(dev);
2589 dev->height = norm_maxh(dev);
2590 dev->interlaced = 0;
2591
2592 /* Analog specific initialization */
2593 dev->format = &format[0];
2594
2595 /* Set the initial input */
2596 video_mux(dev, dev->video_input);
2597
2598 /* Audio defaults */
2599 dev->mute = 1;
2600 dev->volume = 0x1f;
2601
2602 /* enable vbi capturing */
2603 /* write code here... */
2604
2605 /* allocate and fill video video_device struct */
2606 dev->vdev = cx231xx_vdev_init(dev, &cx231xx_video_template, "video");
2607 if (!dev->vdev) {
2608 cx231xx_errdev("cannot allocate video_device.\n");
2609 return -ENODEV;
2610 }
2611
2612 /* register v4l2 video video_device */
2613 ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
2614 video_nr[dev->devno]);
2615 if (ret) {
2616 cx231xx_errdev("unable to register video device (error=%i).\n",
2617 ret);
2618 return ret;
2619 }
2620
2621 cx231xx_info("%s/0: registered device %s [v4l2]\n",
2622 dev->name, video_device_node_name(dev->vdev));
2623
2624 /* Initialize VBI template */
2625 memcpy(&cx231xx_vbi_template, &cx231xx_video_template,
2626 sizeof(cx231xx_vbi_template));
2627 strcpy(cx231xx_vbi_template.name, "cx231xx-vbi");
2628
2629 /* Allocate and fill vbi video_device struct */
2630 dev->vbi_dev = cx231xx_vdev_init(dev, &cx231xx_vbi_template, "vbi");
2631
2632 /* register v4l2 vbi video_device */
2633 ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
2634 vbi_nr[dev->devno]);
2635 if (ret < 0) {
2636 cx231xx_errdev("unable to register vbi device\n");
2637 return ret;
2638 }
2639
2640 cx231xx_info("%s/0: registered device %s\n",
2641 dev->name, video_device_node_name(dev->vbi_dev));
2642
2643 if (cx231xx_boards[dev->model].radio.type == CX231XX_RADIO) {
2644 dev->radio_dev = cx231xx_vdev_init(dev, &cx231xx_radio_template,
2645 "radio");
2646 if (!dev->radio_dev) {
2647 cx231xx_errdev("cannot allocate video_device.\n");
2648 return -ENODEV;
2649 }
2650 ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
2651 radio_nr[dev->devno]);
2652 if (ret < 0) {
2653 cx231xx_errdev("can't register radio device\n");
2654 return ret;
2655 }
2656 cx231xx_info("Registered radio device as %s\n",
2657 video_device_node_name(dev->radio_dev));
2658 }
2659
2660 cx231xx_info("V4L2 device registered as %s and %s\n",
2661 video_device_node_name(dev->vdev),
2662 video_device_node_name(dev->vbi_dev));
2663
2664 return 0;
2665 }
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