projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / video / cx231xx / cx231xx-video.c
1 /*
2 cx231xx-video.c - driver for Conexant Cx23100/101/102
3 USB video capture devices
4
5 Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
6 Based on em28xx driver
7 Based on cx23885 driver
8 Based on cx88 driver
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 */
24
25 #include <linux/init.h>
26 #include <linux/list.h>
27 #include <linux/module.h>
28 #include <linux/kernel.h>
29 #include <linux/bitmap.h>
30 #include <linux/usb.h>
31 #include <linux/i2c.h>
32 #include <linux/version.h>
33 #include <linux/mm.h>
34 #include <linux/mutex.h>
35 #include <linux/slab.h>
36
37 #include <media/v4l2-common.h>
38 #include <media/v4l2-ioctl.h>
39 #include <media/v4l2-chip-ident.h>
40 #include <media/msp3400.h>
41 #include <media/tuner.h>
42
43 #include "dvb_frontend.h"
44
45 #include "cx231xx.h"
46 #include "cx231xx-vbi.h"
47
48 #define CX231XX_VERSION_CODE KERNEL_VERSION(0, 0, 1)
49
50 #define DRIVER_AUTHOR "Srinivasa Deevi <srinivasa.deevi@conexant.com>"
51 #define DRIVER_DESC "Conexant cx231xx based USB video device driver"
52
53 #define cx231xx_videodbg(fmt, arg...) do {\
54 if (video_debug) \
55 printk(KERN_INFO "%s %s :"fmt, \
56 dev->name, __func__ , ##arg); } while (0)
57
58 static unsigned int isoc_debug;
59 module_param(isoc_debug, int, 0644);
60 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
61
62 #define cx231xx_isocdbg(fmt, arg...) \
63 do {\
64 if (isoc_debug) { \
65 printk(KERN_INFO "%s %s :"fmt, \
66 dev->name, __func__ , ##arg); \
67 } \
68 } while (0)
69
70 MODULE_AUTHOR(DRIVER_AUTHOR);
71 MODULE_DESCRIPTION(DRIVER_DESC);
72 MODULE_LICENSE("GPL");
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 - Usefull 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 unsigned int n;
1183
1184 n = i->index;
1185 if (n >= MAX_CX231XX_INPUT)
1186 return -EINVAL;
1187 if (0 == INPUT(n)->type)
1188 return -EINVAL;
1189
1190 i->index = n;
1191 i->type = V4L2_INPUT_TYPE_CAMERA;
1192
1193 strcpy(i->name, iname[INPUT(n)->type]);
1194
1195 if ((CX231XX_VMUX_TELEVISION == INPUT(n)->type) ||
1196 (CX231XX_VMUX_CABLE == INPUT(n)->type))
1197 i->type = V4L2_INPUT_TYPE_TUNER;
1198
1199 i->std = dev->vdev->tvnorms;
1200
1201 return 0;
1202 }
1203
1204 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1205 {
1206 struct cx231xx_fh *fh = priv;
1207 struct cx231xx *dev = fh->dev;
1208
1209 *i = dev->video_input;
1210
1211 return 0;
1212 }
1213
1214 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1215 {
1216 struct cx231xx_fh *fh = priv;
1217 struct cx231xx *dev = fh->dev;
1218 int rc;
1219
1220 dev->mode_tv = 0;
1221 rc = check_dev(dev);
1222 if (rc < 0)
1223 return rc;
1224
1225 if (i >= MAX_CX231XX_INPUT)
1226 return -EINVAL;
1227 if (0 == INPUT(i)->type)
1228 return -EINVAL;
1229
1230 video_mux(dev, i);
1231
1232 if (INPUT(i)->type == CX231XX_VMUX_TELEVISION ||
1233 INPUT(i)->type == CX231XX_VMUX_CABLE) {
1234 /* There's a tuner, so reset the standard and put it on the
1235 last known frequency (since it was probably powered down
1236 until now */
1237 call_all(dev, core, s_std, dev->norm);
1238 }
1239
1240 return 0;
1241 }
1242
1243 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1244 {
1245 struct cx231xx_fh *fh = priv;
1246 struct cx231xx *dev = fh->dev;
1247
1248 switch (a->index) {
1249 case CX231XX_AMUX_VIDEO:
1250 strcpy(a->name, "Television");
1251 break;
1252 case CX231XX_AMUX_LINE_IN:
1253 strcpy(a->name, "Line In");
1254 break;
1255 default:
1256 return -EINVAL;
1257 }
1258
1259 a->index = dev->ctl_ainput;
1260 a->capability = V4L2_AUDCAP_STEREO;
1261
1262 return 0;
1263 }
1264
1265 static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
1266 {
1267 struct cx231xx_fh *fh = priv;
1268 struct cx231xx *dev = fh->dev;
1269 int status = 0;
1270
1271 /* Doesn't allow manual routing */
1272 if (a->index != dev->ctl_ainput)
1273 return -EINVAL;
1274
1275 dev->ctl_ainput = INPUT(a->index)->amux;
1276 status = cx231xx_set_audio_input(dev, dev->ctl_ainput);
1277
1278 return status;
1279 }
1280
1281 static int vidioc_queryctrl(struct file *file, void *priv,
1282 struct v4l2_queryctrl *qc)
1283 {
1284 struct cx231xx_fh *fh = priv;
1285 struct cx231xx *dev = fh->dev;
1286 int id = qc->id;
1287 int i;
1288 int rc;
1289
1290 rc = check_dev(dev);
1291 if (rc < 0)
1292 return rc;
1293
1294 qc->id = v4l2_ctrl_next(ctrl_classes, qc->id);
1295 if (unlikely(qc->id == 0))
1296 return -EINVAL;
1297
1298 memset(qc, 0, sizeof(*qc));
1299
1300 qc->id = id;
1301
1302 if (qc->id < V4L2_CID_BASE || qc->id >= V4L2_CID_LASTP1)
1303 return -EINVAL;
1304
1305 for (i = 0; i < CX231XX_CTLS; i++)
1306 if (cx231xx_ctls[i].v.id == qc->id)
1307 break;
1308
1309 if (i == CX231XX_CTLS) {
1310 *qc = no_ctl;
1311 return 0;
1312 }
1313 *qc = cx231xx_ctls[i].v;
1314
1315 call_all(dev, core, queryctrl, qc);
1316
1317 if (qc->type)
1318 return 0;
1319 else
1320 return -EINVAL;
1321 }
1322
1323 static int vidioc_g_ctrl(struct file *file, void *priv,
1324 struct v4l2_control *ctrl)
1325 {
1326 struct cx231xx_fh *fh = priv;
1327 struct cx231xx *dev = fh->dev;
1328 int rc;
1329
1330 rc = check_dev(dev);
1331 if (rc < 0)
1332 return rc;
1333
1334 call_all(dev, core, g_ctrl, ctrl);
1335 return rc;
1336 }
1337
1338 static int vidioc_s_ctrl(struct file *file, void *priv,
1339 struct v4l2_control *ctrl)
1340 {
1341 struct cx231xx_fh *fh = priv;
1342 struct cx231xx *dev = fh->dev;
1343 int rc;
1344
1345 rc = check_dev(dev);
1346 if (rc < 0)
1347 return rc;
1348
1349 call_all(dev, core, s_ctrl, ctrl);
1350 return rc;
1351 }
1352
1353 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1354 {
1355 struct cx231xx_fh *fh = priv;
1356 struct cx231xx *dev = fh->dev;
1357 int rc;
1358
1359 rc = check_dev(dev);
1360 if (rc < 0)
1361 return rc;
1362
1363 if (0 != t->index)
1364 return -EINVAL;
1365
1366 strcpy(t->name, "Tuner");
1367
1368 t->type = V4L2_TUNER_ANALOG_TV;
1369 t->capability = V4L2_TUNER_CAP_NORM;
1370 t->rangehigh = 0xffffffffUL;
1371 t->signal = 0xffff; /* LOCKED */
1372
1373 return 0;
1374 }
1375
1376 static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1377 {
1378 struct cx231xx_fh *fh = priv;
1379 struct cx231xx *dev = fh->dev;
1380 int rc;
1381
1382 rc = check_dev(dev);
1383 if (rc < 0)
1384 return rc;
1385
1386 if (0 != t->index)
1387 return -EINVAL;
1388 #if 0
1389 call_all(dev, tuner, s_tuner, t);
1390 #endif
1391 return 0;
1392 }
1393
1394 static int vidioc_g_frequency(struct file *file, void *priv,
1395 struct v4l2_frequency *f)
1396 {
1397 struct cx231xx_fh *fh = priv;
1398 struct cx231xx *dev = fh->dev;
1399
1400 f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1401 f->frequency = dev->ctl_freq;
1402
1403 call_all(dev, tuner, g_frequency, f);
1404
1405 return 0;
1406 }
1407
1408 static int vidioc_s_frequency(struct file *file, void *priv,
1409 struct v4l2_frequency *f)
1410 {
1411 struct cx231xx_fh *fh = priv;
1412 struct cx231xx *dev = fh->dev;
1413 int rc;
1414 u32 if_frequency = 5400000;
1415
1416 cx231xx_info("Enter vidioc_s_frequency()f->frequency=%d;f->type=%d\n",
1417 f->frequency, f->type);
1418 /*cx231xx_info("f->type: 1-radio 2-analogTV 3-digitalTV\n");*/
1419
1420 rc = check_dev(dev);
1421 if (rc < 0)
1422 return rc;
1423
1424 if (0 != f->tuner)
1425 return -EINVAL;
1426
1427 if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1428 return -EINVAL;
1429 if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1430 return -EINVAL;
1431
1432 /* set pre channel change settings in DIF first */
1433 rc = cx231xx_tuner_pre_channel_change(dev);
1434
1435 dev->ctl_freq = f->frequency;
1436 call_all(dev, tuner, s_frequency, f);
1437
1438 /* set post channel change settings in DIF first */
1439 rc = cx231xx_tuner_post_channel_change(dev);
1440
1441 if (dev->tuner_type == TUNER_NXP_TDA18271) {
1442 if (dev->norm & (V4L2_STD_MN | V4L2_STD_NTSC_443))
1443 if_frequency = 5400000; /*5.4MHz */
1444 else if (dev->norm & V4L2_STD_B)
1445 if_frequency = 6000000; /*6.0MHz */
1446 else if (dev->norm & (V4L2_STD_PAL_DK | V4L2_STD_SECAM_DK))
1447 if_frequency = 6900000; /*6.9MHz */
1448 else if (dev->norm & V4L2_STD_GH)
1449 if_frequency = 7100000; /*7.1MHz */
1450 else if (dev->norm & V4L2_STD_PAL_I)
1451 if_frequency = 7250000; /*7.25MHz */
1452 else if (dev->norm & V4L2_STD_SECAM_L)
1453 if_frequency = 6900000; /*6.9MHz */
1454 else if (dev->norm & V4L2_STD_SECAM_LC)
1455 if_frequency = 1250000; /*1.25MHz */
1456
1457 cx231xx_info("if_frequency is set to %d\n", if_frequency);
1458 cx231xx_set_Colibri_For_LowIF(dev, if_frequency, 1, 1);
1459
1460 update_HH_register_after_set_DIF(dev);
1461 }
1462
1463 cx231xx_info("Set New FREQUENCY to %d\n", f->frequency);
1464
1465 return rc;
1466 }
1467
1468 #ifdef CONFIG_VIDEO_ADV_DEBUG
1469
1470 /*
1471 -R, --list-registers=type=<host/i2cdrv/i2caddr>,
1472 chip=<chip>[,min=<addr>,max=<addr>]
1473 dump registers from <min> to <max> [VIDIOC_DBG_G_REGISTER]
1474 -r, --set-register=type=<host/i2cdrv/i2caddr>,
1475 chip=<chip>,reg=<addr>,val=<val>
1476 set the register [VIDIOC_DBG_S_REGISTER]
1477
1478 if type == host, then <chip> is the hosts chip ID (default 0)
1479 if type == i2cdrv (default), then <chip> is the I2C driver name or ID
1480 if type == i2caddr, then <chip> is the 7-bit I2C address
1481 */
1482
1483 static int vidioc_g_register(struct file *file, void *priv,
1484 struct v4l2_dbg_register *reg)
1485 {
1486 struct cx231xx_fh *fh = priv;
1487 struct cx231xx *dev = fh->dev;
1488 int ret = 0;
1489 u8 value[4] = { 0, 0, 0, 0 };
1490 u32 data = 0;
1491
1492 switch (reg->match.type) {
1493 case V4L2_CHIP_MATCH_HOST:
1494 switch (reg->match.addr) {
1495 case 0: /* Cx231xx - internal registers */
1496 ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
1497 (u16)reg->reg, value, 4);
1498 reg->val = value[0] | value[1] << 8 |
1499 value[2] << 16 | value[3] << 24;
1500 break;
1501 case 1: /* AFE - read byte */
1502 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1503 (u16)reg->reg, 2, &data, 1);
1504 reg->val = le32_to_cpu(data & 0xff);
1505 break;
1506 case 14: /* AFE - read dword */
1507 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1508 (u16)reg->reg, 2, &data, 4);
1509 reg->val = le32_to_cpu(data);
1510 break;
1511 case 2: /* Video Block - read byte */
1512 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1513 (u16)reg->reg, 2, &data, 1);
1514 reg->val = le32_to_cpu(data & 0xff);
1515 break;
1516 case 24: /* Video Block - read dword */
1517 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1518 (u16)reg->reg, 2, &data, 4);
1519 reg->val = le32_to_cpu(data);
1520 break;
1521 case 3: /* I2S block - read byte */
1522 ret = cx231xx_read_i2c_data(dev,
1523 I2S_BLK_DEVICE_ADDRESS,
1524 (u16)reg->reg, 1,
1525 &data, 1);
1526 reg->val = le32_to_cpu(data & 0xff);
1527 break;
1528 case 34: /* I2S Block - read dword */
1529 ret =
1530 cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1531 (u16)reg->reg, 1, &data, 4);
1532 reg->val = le32_to_cpu(data);
1533 break;
1534 }
1535 return ret < 0 ? ret : 0;
1536
1537 case V4L2_CHIP_MATCH_I2C_DRIVER:
1538 call_all(dev, core, g_register, reg);
1539 return 0;
1540 case V4L2_CHIP_MATCH_I2C_ADDR:/*for register debug*/
1541 switch (reg->match.addr) {
1542 case 0: /* Cx231xx - internal registers */
1543 ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
1544 (u16)reg->reg, value, 4);
1545 reg->val = value[0] | value[1] << 8 |
1546 value[2] << 16 | value[3] << 24;
1547
1548 break;
1549 case 0x600:/* AFE - read byte */
1550 ret = cx231xx_read_i2c_master(dev, AFE_DEVICE_ADDRESS,
1551 (u16)reg->reg, 2,
1552 &data, 1 , 0);
1553 reg->val = le32_to_cpu(data & 0xff);
1554 break;
1555
1556 case 0x880:/* Video Block - read byte */
1557 if (reg->reg < 0x0b) {
1558 ret = cx231xx_read_i2c_master(dev,
1559 VID_BLK_I2C_ADDRESS,
1560 (u16)reg->reg, 2,
1561 &data, 1 , 0);
1562 reg->val = le32_to_cpu(data & 0xff);
1563 } else {
1564 ret = cx231xx_read_i2c_master(dev,
1565 VID_BLK_I2C_ADDRESS,
1566 (u16)reg->reg, 2,
1567 &data, 4 , 0);
1568 reg->val = le32_to_cpu(data);
1569 }
1570 break;
1571 case 0x980:
1572 ret = cx231xx_read_i2c_master(dev,
1573 I2S_BLK_DEVICE_ADDRESS,
1574 (u16)reg->reg, 1,
1575 &data, 1 , 0);
1576 reg->val = le32_to_cpu(data & 0xff);
1577 break;
1578 case 0x400:
1579 ret =
1580 cx231xx_read_i2c_master(dev, 0x40,
1581 (u16)reg->reg, 1,
1582 &data, 1 , 0);
1583 reg->val = le32_to_cpu(data & 0xff);
1584 break;
1585 case 0xc01:
1586 ret =
1587 cx231xx_read_i2c_master(dev, 0xc0,
1588 (u16)reg->reg, 2,
1589 &data, 38, 1);
1590 reg->val = le32_to_cpu(data);
1591 break;
1592 case 0x022:
1593 ret =
1594 cx231xx_read_i2c_master(dev, 0x02,
1595 (u16)reg->reg, 1,
1596 &data, 1, 2);
1597 reg->val = le32_to_cpu(data & 0xff);
1598 break;
1599 case 0x322:
1600 ret = cx231xx_read_i2c_master(dev,
1601 0x32,
1602 (u16)reg->reg, 1,
1603 &data, 4 , 2);
1604 reg->val = le32_to_cpu(data);
1605 break;
1606 case 0x342:
1607 ret = cx231xx_read_i2c_master(dev,
1608 0x34,
1609 (u16)reg->reg, 1,
1610 &data, 4 , 2);
1611 reg->val = le32_to_cpu(data);
1612 break;
1613
1614 default:
1615 cx231xx_info("no match device address!!\n");
1616 break;
1617 }
1618 return ret < 0 ? ret : 0;
1619 /*return -EINVAL;*/
1620 default:
1621 if (!v4l2_chip_match_host(&reg->match))
1622 return -EINVAL;
1623 }
1624
1625 call_all(dev, core, g_register, reg);
1626
1627 return ret;
1628 }
1629
1630 static int vidioc_s_register(struct file *file, void *priv,
1631 struct v4l2_dbg_register *reg)
1632 {
1633 struct cx231xx_fh *fh = priv;
1634 struct cx231xx *dev = fh->dev;
1635 int ret = 0;
1636 __le64 buf;
1637 u32 value;
1638 u8 data[4] = { 0, 0, 0, 0 };
1639
1640 buf = cpu_to_le64(reg->val);
1641
1642 switch (reg->match.type) {
1643 case V4L2_CHIP_MATCH_HOST:
1644 {
1645 value = (u32) buf & 0xffffffff;
1646
1647 switch (reg->match.addr) {
1648 case 0: /* cx231xx internal registers */
1649 data[0] = (u8) value;
1650 data[1] = (u8) (value >> 8);
1651 data[2] = (u8) (value >> 16);
1652 data[3] = (u8) (value >> 24);
1653 ret = cx231xx_write_ctrl_reg(dev,
1654 VRT_SET_REGISTER,
1655 (u16)reg->reg, data,
1656 4);
1657 break;
1658 case 1: /* AFE - read byte */
1659 ret = cx231xx_write_i2c_data(dev,
1660 AFE_DEVICE_ADDRESS,
1661 (u16)reg->reg, 2,
1662 value, 1);
1663 break;
1664 case 14: /* AFE - read dword */
1665 ret = cx231xx_write_i2c_data(dev,
1666 AFE_DEVICE_ADDRESS,
1667 (u16)reg->reg, 2,
1668 value, 4);
1669 break;
1670 case 2: /* Video Block - read byte */
1671 ret =
1672 cx231xx_write_i2c_data(dev,
1673 VID_BLK_I2C_ADDRESS,
1674 (u16)reg->reg, 2,
1675 value, 1);
1676 break;
1677 case 24: /* Video Block - read dword */
1678 ret =
1679 cx231xx_write_i2c_data(dev,
1680 VID_BLK_I2C_ADDRESS,
1681 (u16)reg->reg, 2,
1682 value, 4);
1683 break;
1684 case 3: /* I2S block - read byte */
1685 ret =
1686 cx231xx_write_i2c_data(dev,
1687 I2S_BLK_DEVICE_ADDRESS,
1688 (u16)reg->reg, 1,
1689 value, 1);
1690 break;
1691 case 34: /* I2S block - read dword */
1692 ret =
1693 cx231xx_write_i2c_data(dev,
1694 I2S_BLK_DEVICE_ADDRESS,
1695 (u16)reg->reg, 1,
1696 value, 4);
1697 break;
1698 }
1699 }
1700 return ret < 0 ? ret : 0;
1701 case V4L2_CHIP_MATCH_I2C_ADDR:
1702 {
1703 value = (u32) buf & 0xffffffff;
1704
1705 switch (reg->match.addr) {
1706 case 0:/*cx231xx internal registers*/
1707 data[0] = (u8) value;
1708 data[1] = (u8) (value >> 8);
1709 data[2] = (u8) (value >> 16);
1710 data[3] = (u8) (value >> 24);
1711 ret = cx231xx_write_ctrl_reg(dev,
1712 VRT_SET_REGISTER,
1713 (u16)reg->reg, data,
1714 4);
1715 break;
1716 case 0x600:/* AFE - read byte */
1717 ret = cx231xx_write_i2c_master(dev,
1718 AFE_DEVICE_ADDRESS,
1719 (u16)reg->reg, 2,
1720 value, 1 , 0);
1721 break;
1722
1723 case 0x880:/* Video Block - read byte */
1724 if (reg->reg < 0x0b)
1725 cx231xx_write_i2c_master(dev,
1726 VID_BLK_I2C_ADDRESS,
1727 (u16)reg->reg, 2,
1728 value, 1, 0);
1729 else
1730 cx231xx_write_i2c_master(dev,
1731 VID_BLK_I2C_ADDRESS,
1732 (u16)reg->reg, 2,
1733 value, 4, 0);
1734 break;
1735 case 0x980:
1736 ret =
1737 cx231xx_write_i2c_master(dev,
1738 I2S_BLK_DEVICE_ADDRESS,
1739 (u16)reg->reg, 1,
1740 value, 1, 0);
1741 break;
1742 case 0x400:
1743 ret =
1744 cx231xx_write_i2c_master(dev,
1745 0x40,
1746 (u16)reg->reg, 1,
1747 value, 1, 0);
1748 break;
1749 case 0xc01:
1750 ret =
1751 cx231xx_write_i2c_master(dev,
1752 0xc0,
1753 (u16)reg->reg, 1,
1754 value, 1, 1);
1755 break;
1756
1757 case 0x022:
1758 ret =
1759 cx231xx_write_i2c_master(dev,
1760 0x02,
1761 (u16)reg->reg, 1,
1762 value, 1, 2);
1763 case 0x322:
1764 ret =
1765 cx231xx_write_i2c_master(dev,
1766 0x32,
1767 (u16)reg->reg, 1,
1768 value, 4, 2);
1769 break;
1770
1771 case 0x342:
1772 ret =
1773 cx231xx_write_i2c_master(dev,
1774 0x34,
1775 (u16)reg->reg, 1,
1776 value, 4, 2);
1777 break;
1778 default:
1779 cx231xx_info("no match device address, "
1780 "the value is %x\n", reg->match.addr);
1781 break;
1782
1783 }
1784
1785 }
1786 default:
1787 break;
1788 }
1789
1790 call_all(dev, core, s_register, reg);
1791
1792 return ret;
1793 }
1794 #endif
1795
1796 static int vidioc_cropcap(struct file *file, void *priv,
1797 struct v4l2_cropcap *cc)
1798 {
1799 struct cx231xx_fh *fh = priv;
1800 struct cx231xx *dev = fh->dev;
1801
1802 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1803 return -EINVAL;
1804
1805 cc->bounds.left = 0;
1806 cc->bounds.top = 0;
1807 cc->bounds.width = dev->width;
1808 cc->bounds.height = dev->height;
1809 cc->defrect = cc->bounds;
1810 cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */
1811 cc->pixelaspect.denominator = 59;
1812
1813 return 0;
1814 }
1815
1816 static int vidioc_streamon(struct file *file, void *priv,
1817 enum v4l2_buf_type type)
1818 {
1819 struct cx231xx_fh *fh = priv;
1820 struct cx231xx *dev = fh->dev;
1821 int rc;
1822
1823 rc = check_dev(dev);
1824 if (rc < 0)
1825 return rc;
1826
1827 rc = res_get(fh);
1828
1829 if (likely(rc >= 0))
1830 rc = videobuf_streamon(&fh->vb_vidq);
1831
1832 call_all(dev, video, s_stream, 1);
1833
1834 return rc;
1835 }
1836
1837 static int vidioc_streamoff(struct file *file, void *priv,
1838 enum v4l2_buf_type type)
1839 {
1840 struct cx231xx_fh *fh = priv;
1841 struct cx231xx *dev = fh->dev;
1842 int rc;
1843
1844 rc = check_dev(dev);
1845 if (rc < 0)
1846 return rc;
1847
1848 if ((fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
1849 (fh->type != V4L2_BUF_TYPE_VBI_CAPTURE))
1850 return -EINVAL;
1851 if (type != fh->type)
1852 return -EINVAL;
1853
1854 cx25840_call(dev, video, s_stream, 0);
1855
1856 videobuf_streamoff(&fh->vb_vidq);
1857 res_free(fh);
1858
1859 return 0;
1860 }
1861
1862 static int vidioc_querycap(struct file *file, void *priv,
1863 struct v4l2_capability *cap)
1864 {
1865 struct cx231xx_fh *fh = priv;
1866 struct cx231xx *dev = fh->dev;
1867
1868 strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
1869 strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
1870 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
1871
1872 cap->version = CX231XX_VERSION_CODE;
1873
1874 cap->capabilities = V4L2_CAP_VBI_CAPTURE |
1875 #if 0
1876 V4L2_CAP_SLICED_VBI_CAPTURE |
1877 #endif
1878 V4L2_CAP_VIDEO_CAPTURE |
1879 V4L2_CAP_AUDIO |
1880 V4L2_CAP_READWRITE |
1881 V4L2_CAP_STREAMING;
1882
1883 if (dev->tuner_type != TUNER_ABSENT)
1884 cap->capabilities |= V4L2_CAP_TUNER;
1885
1886 return 0;
1887 }
1888
1889 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1890 struct v4l2_fmtdesc *f)
1891 {
1892 if (unlikely(f->index >= ARRAY_SIZE(format)))
1893 return -EINVAL;
1894
1895 strlcpy(f->description, format[f->index].name, sizeof(f->description));
1896 f->pixelformat = format[f->index].fourcc;
1897
1898 return 0;
1899 }
1900
1901 /* Sliced VBI ioctls */
1902 static int vidioc_g_fmt_sliced_vbi_cap(struct file *file, void *priv,
1903 struct v4l2_format *f)
1904 {
1905 struct cx231xx_fh *fh = priv;
1906 struct cx231xx *dev = fh->dev;
1907 int rc;
1908
1909 rc = check_dev(dev);
1910 if (rc < 0)
1911 return rc;
1912
1913 f->fmt.sliced.service_set = 0;
1914
1915 call_all(dev, vbi, g_sliced_fmt, &f->fmt.sliced);
1916
1917 if (f->fmt.sliced.service_set == 0)
1918 rc = -EINVAL;
1919
1920 return rc;
1921 }
1922
1923 static int vidioc_try_set_sliced_vbi_cap(struct file *file, void *priv,
1924 struct v4l2_format *f)
1925 {
1926 struct cx231xx_fh *fh = priv;
1927 struct cx231xx *dev = fh->dev;
1928 int rc;
1929
1930 rc = check_dev(dev);
1931 if (rc < 0)
1932 return rc;
1933
1934 call_all(dev, vbi, g_sliced_fmt, &f->fmt.sliced);
1935
1936 if (f->fmt.sliced.service_set == 0)
1937 return -EINVAL;
1938
1939 return 0;
1940 }
1941
1942 /* RAW VBI ioctls */
1943
1944 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1945 struct v4l2_format *f)
1946 {
1947 struct cx231xx_fh *fh = priv;
1948 struct cx231xx *dev = fh->dev;
1949 f->fmt.vbi.sampling_rate = 6750000 * 4;
1950 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1951 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1952 f->fmt.vbi.offset = 0;
1953 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1954 PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1955 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1956 PAL_VBI_LINES : NTSC_VBI_LINES;
1957 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1958 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1959 f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1960
1961 return 0;
1962
1963 }
1964
1965 static int vidioc_try_fmt_vbi_cap(struct file *file, void *priv,
1966 struct v4l2_format *f)
1967 {
1968 struct cx231xx_fh *fh = priv;
1969 struct cx231xx *dev = fh->dev;
1970
1971 if (dev->vbi_stream_on && !fh->stream_on) {
1972 cx231xx_errdev("%s device in use by another fh\n", __func__);
1973 return -EBUSY;
1974 }
1975
1976 f->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1977 f->fmt.vbi.sampling_rate = 6750000 * 4;
1978 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1979 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1980 f->fmt.vbi.offset = 0;
1981 f->fmt.vbi.flags = 0;
1982 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1983 PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1984 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1985 PAL_VBI_LINES : NTSC_VBI_LINES;
1986 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1987 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1988 f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1989
1990 return 0;
1991
1992 }
1993
1994 static int vidioc_reqbufs(struct file *file, void *priv,
1995 struct v4l2_requestbuffers *rb)
1996 {
1997 struct cx231xx_fh *fh = priv;
1998 struct cx231xx *dev = fh->dev;
1999 int rc;
2000
2001 rc = check_dev(dev);
2002 if (rc < 0)
2003 return rc;
2004
2005 return videobuf_reqbufs(&fh->vb_vidq, rb);
2006 }
2007
2008 static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *b)
2009 {
2010 struct cx231xx_fh *fh = priv;
2011 struct cx231xx *dev = fh->dev;
2012 int rc;
2013
2014 rc = check_dev(dev);
2015 if (rc < 0)
2016 return rc;
2017
2018 return videobuf_querybuf(&fh->vb_vidq, b);
2019 }
2020
2021 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2022 {
2023 struct cx231xx_fh *fh = priv;
2024 struct cx231xx *dev = fh->dev;
2025 int rc;
2026
2027 rc = check_dev(dev);
2028 if (rc < 0)
2029 return rc;
2030
2031 return videobuf_qbuf(&fh->vb_vidq, b);
2032 }
2033
2034 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2035 {
2036 struct cx231xx_fh *fh = priv;
2037 struct cx231xx *dev = fh->dev;
2038 int rc;
2039
2040 rc = check_dev(dev);
2041 if (rc < 0)
2042 return rc;
2043
2044 return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK);
2045 }
2046
2047 /* ----------------------------------------------------------- */
2048 /* RADIO ESPECIFIC IOCTLS */
2049 /* ----------------------------------------------------------- */
2050
2051 static int radio_querycap(struct file *file, void *priv,
2052 struct v4l2_capability *cap)
2053 {
2054 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
2055
2056 strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
2057 strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
2058 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
2059
2060 cap->version = CX231XX_VERSION_CODE;
2061 cap->capabilities = V4L2_CAP_TUNER;
2062 return 0;
2063 }
2064
2065 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
2066 {
2067 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
2068
2069 if (unlikely(t->index > 0))
2070 return -EINVAL;
2071
2072 strcpy(t->name, "Radio");
2073 t->type = V4L2_TUNER_RADIO;
2074
2075 call_all(dev, tuner, s_tuner, t);
2076
2077 return 0;
2078 }
2079
2080 static int radio_enum_input(struct file *file, void *priv, struct v4l2_input *i)
2081 {
2082 if (i->index != 0)
2083 return -EINVAL;
2084 strcpy(i->name, "Radio");
2085 i->type = V4L2_INPUT_TYPE_TUNER;
2086
2087 return 0;
2088 }
2089
2090 static int radio_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
2091 {
2092 if (unlikely(a->index))
2093 return -EINVAL;
2094
2095 strcpy(a->name, "Radio");
2096 return 0;
2097 }
2098
2099 static int radio_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
2100 {
2101 struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
2102
2103 if (0 != t->index)
2104 return -EINVAL;
2105
2106 call_all(dev, tuner, s_tuner, t);
2107
2108 return 0;
2109 }
2110
2111 static int radio_s_audio(struct file *file, void *fh, struct v4l2_audio *a)
2112 {
2113 return 0;
2114 }
2115
2116 static int radio_s_input(struct file *file, void *fh, unsigned int i)
2117 {
2118 return 0;
2119 }
2120
2121 static int radio_queryctrl(struct file *file, void *priv,
2122 struct v4l2_queryctrl *c)
2123 {
2124 int i;
2125
2126 if (c->id < V4L2_CID_BASE || c->id >= V4L2_CID_LASTP1)
2127 return -EINVAL;
2128 if (c->id == V4L2_CID_AUDIO_MUTE) {
2129 for (i = 0; i < CX231XX_CTLS; i++) {
2130 if (cx231xx_ctls[i].v.id == c->id)
2131 break;
2132 }
2133 if (i == CX231XX_CTLS)
2134 return -EINVAL;
2135 *c = cx231xx_ctls[i].v;
2136 } else
2137 *c = no_ctl;
2138 return 0;
2139 }
2140
2141 /*
2142 * cx231xx_v4l2_open()
2143 * inits the device and starts isoc transfer
2144 */
2145 static int cx231xx_v4l2_open(struct file *filp)
2146 {
2147 int errCode = 0, radio = 0;
2148 struct video_device *vdev = video_devdata(filp);
2149 struct cx231xx *dev = video_drvdata(filp);
2150 struct cx231xx_fh *fh;
2151 enum v4l2_buf_type fh_type = 0;
2152
2153 switch (vdev->vfl_type) {
2154 case VFL_TYPE_GRABBER:
2155 fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2156 break;
2157 case VFL_TYPE_VBI:
2158 fh_type = V4L2_BUF_TYPE_VBI_CAPTURE;
2159 break;
2160 case VFL_TYPE_RADIO:
2161 radio = 1;
2162 break;
2163 }
2164
2165 cx231xx_videodbg("open dev=%s type=%s users=%d\n",
2166 video_device_node_name(vdev), v4l2_type_names[fh_type],
2167 dev->users);
2168
2169 #if 0
2170 errCode = cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
2171 if (errCode < 0) {
2172 cx231xx_errdev
2173 ("Device locked on digital mode. Can't open analog\n");
2174 return -EBUSY;
2175 }
2176 #endif
2177
2178 fh = kzalloc(sizeof(struct cx231xx_fh), GFP_KERNEL);
2179 if (!fh) {
2180 cx231xx_errdev("cx231xx-video.c: Out of memory?!\n");
2181 return -ENOMEM;
2182 }
2183 fh->dev = dev;
2184 fh->radio = radio;
2185 fh->type = fh_type;
2186 filp->private_data = fh;
2187
2188 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
2189 dev->width = norm_maxw(dev);
2190 dev->height = norm_maxh(dev);
2191
2192 /* Power up in Analog TV mode */
2193 if (dev->board.external_av)
2194 cx231xx_set_power_mode(dev,
2195 POLARIS_AVMODE_ENXTERNAL_AV);
2196 else
2197 cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV);
2198
2199 #if 0
2200 cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
2201 #endif
2202
2203 /* set video alternate setting */
2204 cx231xx_set_video_alternate(dev);
2205
2206 /* Needed, since GPIO might have disabled power of
2207 some i2c device */
2208 cx231xx_config_i2c(dev);
2209
2210 /* device needs to be initialized before isoc transfer */
2211 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
2212
2213 }
2214 if (fh->radio) {
2215 cx231xx_videodbg("video_open: setting radio device\n");
2216
2217 /* cx231xx_start_radio(dev); */
2218
2219 call_all(dev, tuner, s_radio);
2220 }
2221
2222 dev->users++;
2223
2224 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
2225 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_video_qops,
2226 NULL, &dev->video_mode.slock,
2227 fh->type, V4L2_FIELD_INTERLACED,
2228 sizeof(struct cx231xx_buffer),
2229 fh, &dev->lock);
2230 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
2231 /* Set the required alternate setting VBI interface works in
2232 Bulk mode only */
2233 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
2234
2235 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_vbi_qops,
2236 NULL, &dev->vbi_mode.slock,
2237 fh->type, V4L2_FIELD_SEQ_TB,
2238 sizeof(struct cx231xx_buffer),
2239 fh, &dev->lock);
2240 }
2241
2242 return errCode;
2243 }
2244
2245 /*
2246 * cx231xx_realease_resources()
2247 * unregisters the v4l2,i2c and usb devices
2248 * called when the device gets disconected or at module unload
2249 */
2250 void cx231xx_release_analog_resources(struct cx231xx *dev)
2251 {
2252
2253 /*FIXME: I2C IR should be disconnected */
2254
2255 if (dev->radio_dev) {
2256 if (video_is_registered(dev->radio_dev))
2257 video_unregister_device(dev->radio_dev);
2258 else
2259 video_device_release(dev->radio_dev);
2260 dev->radio_dev = NULL;
2261 }
2262 if (dev->vbi_dev) {
2263 cx231xx_info("V4L2 device %s deregistered\n",
2264 video_device_node_name(dev->vbi_dev));
2265 if (video_is_registered(dev->vbi_dev))
2266 video_unregister_device(dev->vbi_dev);
2267 else
2268 video_device_release(dev->vbi_dev);
2269 dev->vbi_dev = NULL;
2270 }
2271 if (dev->vdev) {
2272 cx231xx_info("V4L2 device %s deregistered\n",
2273 video_device_node_name(dev->vdev));
2274
2275 if (dev->board.has_417)
2276 cx231xx_417_unregister(dev);
2277
2278 if (video_is_registered(dev->vdev))
2279 video_unregister_device(dev->vdev);
2280 else
2281 video_device_release(dev->vdev);
2282 dev->vdev = NULL;
2283 }
2284 }
2285
2286 /*
2287 * cx231xx_v4l2_close()
2288 * stops streaming and deallocates all resources allocated by the v4l2
2289 * calls and ioctls
2290 */
2291 static int cx231xx_v4l2_close(struct file *filp)
2292 {
2293 struct cx231xx_fh *fh = filp->private_data;
2294 struct cx231xx *dev = fh->dev;
2295
2296 cx231xx_videodbg("users=%d\n", dev->users);
2297
2298 cx231xx_videodbg("users=%d\n", dev->users);
2299 if (res_check(fh))
2300 res_free(fh);
2301
2302 /*
2303 * To workaround error number=-71 on EP0 for VideoGrabber,
2304 * need exclude following.
2305 * FIXME: It is probably safe to remove most of these, as we're
2306 * now avoiding the alternate setting for INDEX_VANC
2307 */
2308 if (!dev->board.no_alt_vanc)
2309 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
2310 videobuf_stop(&fh->vb_vidq);
2311 videobuf_mmap_free(&fh->vb_vidq);
2312
2313 /* the device is already disconnect,
2314 free the remaining resources */
2315 if (dev->state & DEV_DISCONNECTED) {
2316 if (atomic_read(&dev->devlist_count) > 0) {
2317 cx231xx_release_resources(dev);
2318 kfree(dev);
2319 dev = NULL;
2320 return 0;
2321 }
2322 return 0;
2323 }
2324
2325 /* do this before setting alternate! */
2326 cx231xx_uninit_vbi_isoc(dev);
2327
2328 /* set alternate 0 */
2329 if (!dev->vbi_or_sliced_cc_mode)
2330 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
2331 else
2332 cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
2333
2334 kfree(fh);
2335 dev->users--;
2336 wake_up_interruptible_nr(&dev->open, 1);
2337 return 0;
2338 }
2339
2340 if (dev->users == 1) {
2341 videobuf_stop(&fh->vb_vidq);
2342 videobuf_mmap_free(&fh->vb_vidq);
2343
2344 /* the device is already disconnect,
2345 free the remaining resources */
2346 if (dev->state & DEV_DISCONNECTED) {
2347 cx231xx_release_resources(dev);
2348 kfree(dev);
2349 dev = NULL;
2350 return 0;
2351 }
2352
2353 /* Save some power by putting tuner to sleep */
2354 call_all(dev, core, s_power, 0);
2355
2356 /* do this before setting alternate! */
2357 if (dev->USE_ISO)
2358 cx231xx_uninit_isoc(dev);
2359 else
2360 cx231xx_uninit_bulk(dev);
2361 cx231xx_set_mode(dev, CX231XX_SUSPEND);
2362
2363 /* set alternate 0 */
2364 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
2365 }
2366 kfree(fh);
2367 dev->users--;
2368 wake_up_interruptible_nr(&dev->open, 1);
2369 return 0;
2370 }
2371
2372 /*
2373 * cx231xx_v4l2_read()
2374 * will allocate buffers when called for the first time
2375 */
2376 static ssize_t
2377 cx231xx_v4l2_read(struct file *filp, char __user *buf, size_t count,
2378 loff_t *pos)
2379 {
2380 struct cx231xx_fh *fh = filp->private_data;
2381 struct cx231xx *dev = fh->dev;
2382 int rc;
2383
2384 rc = check_dev(dev);
2385 if (rc < 0)
2386 return rc;
2387
2388 if ((fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
2389 (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)) {
2390 rc = res_get(fh);
2391
2392 if (unlikely(rc < 0))
2393 return rc;
2394
2395 return videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0,
2396 filp->f_flags & O_NONBLOCK);
2397 }
2398 return 0;
2399 }
2400
2401 /*
2402 * cx231xx_v4l2_poll()
2403 * will allocate buffers when called for the first time
2404 */
2405 static unsigned int cx231xx_v4l2_poll(struct file *filp, poll_table *wait)
2406 {
2407 struct cx231xx_fh *fh = filp->private_data;
2408 struct cx231xx *dev = fh->dev;
2409 int rc;
2410
2411 rc = check_dev(dev);
2412 if (rc < 0)
2413 return rc;
2414
2415 rc = res_get(fh);
2416
2417 if (unlikely(rc < 0))
2418 return POLLERR;
2419
2420 if ((V4L2_BUF_TYPE_VIDEO_CAPTURE == fh->type) ||
2421 (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type))
2422 return videobuf_poll_stream(filp, &fh->vb_vidq, wait);
2423 else
2424 return POLLERR;
2425 }
2426
2427 /*
2428 * cx231xx_v4l2_mmap()
2429 */
2430 static int cx231xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
2431 {
2432 struct cx231xx_fh *fh = filp->private_data;
2433 struct cx231xx *dev = fh->dev;
2434 int rc;
2435
2436 rc = check_dev(dev);
2437 if (rc < 0)
2438 return rc;
2439
2440 rc = res_get(fh);
2441
2442 if (unlikely(rc < 0))
2443 return rc;
2444
2445 rc = videobuf_mmap_mapper(&fh->vb_vidq, vma);
2446
2447 cx231xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n",
2448 (unsigned long)vma->vm_start,
2449 (unsigned long)vma->vm_end -
2450 (unsigned long)vma->vm_start, rc);
2451
2452 return rc;
2453 }
2454
2455 static const struct v4l2_file_operations cx231xx_v4l_fops = {
2456 .owner = THIS_MODULE,
2457 .open = cx231xx_v4l2_open,
2458 .release = cx231xx_v4l2_close,
2459 .read = cx231xx_v4l2_read,
2460 .poll = cx231xx_v4l2_poll,
2461 .mmap = cx231xx_v4l2_mmap,
2462 .unlocked_ioctl = video_ioctl2,
2463 };
2464
2465 static const struct v4l2_ioctl_ops video_ioctl_ops = {
2466 .vidioc_querycap = vidioc_querycap,
2467 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
2468 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
2469 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
2470 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
2471 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
2472 .vidioc_try_fmt_vbi_cap = vidioc_try_fmt_vbi_cap,
2473 .vidioc_s_fmt_vbi_cap = vidioc_try_fmt_vbi_cap,
2474 .vidioc_g_audio = vidioc_g_audio,
2475 .vidioc_s_audio = vidioc_s_audio,
2476 .vidioc_cropcap = vidioc_cropcap,
2477 .vidioc_g_fmt_sliced_vbi_cap = vidioc_g_fmt_sliced_vbi_cap,
2478 .vidioc_try_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap,
2479 .vidioc_reqbufs = vidioc_reqbufs,
2480 .vidioc_querybuf = vidioc_querybuf,
2481 .vidioc_qbuf = vidioc_qbuf,
2482 .vidioc_dqbuf = vidioc_dqbuf,
2483 .vidioc_s_std = vidioc_s_std,
2484 .vidioc_g_std = vidioc_g_std,
2485 .vidioc_enum_input = vidioc_enum_input,
2486 .vidioc_g_input = vidioc_g_input,
2487 .vidioc_s_input = vidioc_s_input,
2488 .vidioc_queryctrl = vidioc_queryctrl,
2489 .vidioc_g_ctrl = vidioc_g_ctrl,
2490 .vidioc_s_ctrl = vidioc_s_ctrl,
2491 .vidioc_streamon = vidioc_streamon,
2492 .vidioc_streamoff = vidioc_streamoff,
2493 .vidioc_g_tuner = vidioc_g_tuner,
2494 .vidioc_s_tuner = vidioc_s_tuner,
2495 .vidioc_g_frequency = vidioc_g_frequency,
2496 .vidioc_s_frequency = vidioc_s_frequency,
2497 #ifdef CONFIG_VIDEO_ADV_DEBUG
2498 .vidioc_g_register = vidioc_g_register,
2499 .vidioc_s_register = vidioc_s_register,
2500 #endif
2501 };
2502
2503 static struct video_device cx231xx_vbi_template;
2504
2505 static const struct video_device cx231xx_video_template = {
2506 .fops = &cx231xx_v4l_fops,
2507 .release = video_device_release,
2508 .ioctl_ops = &video_ioctl_ops,
2509 .tvnorms = V4L2_STD_ALL,
2510 .current_norm = V4L2_STD_PAL,
2511 };
2512
2513 static const struct v4l2_file_operations radio_fops = {
2514 .owner = THIS_MODULE,
2515 .open = cx231xx_v4l2_open,
2516 .release = cx231xx_v4l2_close,
2517 .ioctl = video_ioctl2,
2518 };
2519
2520 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
2521 .vidioc_querycap = radio_querycap,
2522 .vidioc_g_tuner = radio_g_tuner,
2523 .vidioc_enum_input = radio_enum_input,
2524 .vidioc_g_audio = radio_g_audio,
2525 .vidioc_s_tuner = radio_s_tuner,
2526 .vidioc_s_audio = radio_s_audio,
2527 .vidioc_s_input = radio_s_input,
2528 .vidioc_queryctrl = radio_queryctrl,
2529 .vidioc_g_ctrl = vidioc_g_ctrl,
2530 .vidioc_s_ctrl = vidioc_s_ctrl,
2531 .vidioc_g_frequency = vidioc_g_frequency,
2532 .vidioc_s_frequency = vidioc_s_frequency,
2533 #ifdef CONFIG_VIDEO_ADV_DEBUG
2534 .vidioc_g_register = vidioc_g_register,
2535 .vidioc_s_register = vidioc_s_register,
2536 #endif
2537 };
2538
2539 static struct video_device cx231xx_radio_template = {
2540 .name = "cx231xx-radio",
2541 .fops = &radio_fops,
2542 .ioctl_ops = &radio_ioctl_ops,
2543 };
2544
2545 /******************************** usb interface ******************************/
2546
2547 static struct video_device *cx231xx_vdev_init(struct cx231xx *dev,
2548 const struct video_device
2549 *template, const char *type_name)
2550 {
2551 struct video_device *vfd;
2552
2553 vfd = video_device_alloc();
2554 if (NULL == vfd)
2555 return NULL;
2556
2557 *vfd = *template;
2558 vfd->v4l2_dev = &dev->v4l2_dev;
2559 vfd->release = video_device_release;
2560 vfd->debug = video_debug;
2561 vfd->lock = &dev->lock;
2562
2563 snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
2564
2565 video_set_drvdata(vfd, dev);
2566 return vfd;
2567 }
2568
2569 int cx231xx_register_analog_devices(struct cx231xx *dev)
2570 {
2571 int ret;
2572
2573 cx231xx_info("%s: v4l2 driver version %d.%d.%d\n",
2574 dev->name,
2575 (CX231XX_VERSION_CODE >> 16) & 0xff,
2576 (CX231XX_VERSION_CODE >> 8) & 0xff,
2577 CX231XX_VERSION_CODE & 0xff);
2578
2579 /* set default norm */
2580 /*dev->norm = cx231xx_video_template.current_norm; */
2581 dev->width = norm_maxw(dev);
2582 dev->height = norm_maxh(dev);
2583 dev->interlaced = 0;
2584
2585 /* Analog specific initialization */
2586 dev->format = &format[0];
2587
2588 /* Set the initial input */
2589 video_mux(dev, dev->video_input);
2590
2591 /* Audio defaults */
2592 dev->mute = 1;
2593 dev->volume = 0x1f;
2594
2595 /* enable vbi capturing */
2596 /* write code here... */
2597
2598 /* allocate and fill video video_device struct */
2599 dev->vdev = cx231xx_vdev_init(dev, &cx231xx_video_template, "video");
2600 if (!dev->vdev) {
2601 cx231xx_errdev("cannot allocate video_device.\n");
2602 return -ENODEV;
2603 }
2604
2605 /* register v4l2 video video_device */
2606 ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
2607 video_nr[dev->devno]);
2608 if (ret) {
2609 cx231xx_errdev("unable to register video device (error=%i).\n",
2610 ret);
2611 return ret;
2612 }
2613
2614 cx231xx_info("%s/0: registered device %s [v4l2]\n",
2615 dev->name, video_device_node_name(dev->vdev));
2616
2617 /* Initialize VBI template */
2618 memcpy(&cx231xx_vbi_template, &cx231xx_video_template,
2619 sizeof(cx231xx_vbi_template));
2620 strcpy(cx231xx_vbi_template.name, "cx231xx-vbi");
2621
2622 /* Allocate and fill vbi video_device struct */
2623 dev->vbi_dev = cx231xx_vdev_init(dev, &cx231xx_vbi_template, "vbi");
2624
2625 /* register v4l2 vbi video_device */
2626 ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
2627 vbi_nr[dev->devno]);
2628 if (ret < 0) {
2629 cx231xx_errdev("unable to register vbi device\n");
2630 return ret;
2631 }
2632
2633 cx231xx_info("%s/0: registered device %s\n",
2634 dev->name, video_device_node_name(dev->vbi_dev));
2635
2636 if (cx231xx_boards[dev->model].radio.type == CX231XX_RADIO) {
2637 dev->radio_dev = cx231xx_vdev_init(dev, &cx231xx_radio_template,
2638 "radio");
2639 if (!dev->radio_dev) {
2640 cx231xx_errdev("cannot allocate video_device.\n");
2641 return -ENODEV;
2642 }
2643 ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
2644 radio_nr[dev->devno]);
2645 if (ret < 0) {
2646 cx231xx_errdev("can't register radio device\n");
2647 return ret;
2648 }
2649 cx231xx_info("Registered radio device as %s\n",
2650 video_device_node_name(dev->radio_dev));
2651 }
2652
2653 cx231xx_info("V4L2 device registered as %s and %s\n",
2654 video_device_node_name(dev->vdev),
2655 video_device_node_name(dev->vbi_dev));
2656
2657 return 0;
2658 }
kernel source for telekom puls (alcatel/mediatek)