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interconnect: qcom: Fix Kconfig indentation
[linux/fpc-iii.git] / drivers / media / usb / cx231xx / cx231xx-video.c
blob69abafaebbf3883bb9e00400684071c92b199af1
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 cx231xx-video.c - driver for Conexant Cx23100/101/102
4 USB video capture devices
5
6 Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
7 Based on em28xx driver
8 Based on cx23885 driver
9 Based on cx88 driver
10
11 */
12
13 #include "cx231xx.h"
14 #include <linux/init.h>
15 #include <linux/list.h>
16 #include <linux/module.h>
17 #include <linux/kernel.h>
18 #include <linux/bitmap.h>
19 #include <linux/i2c.h>
20 #include <linux/mm.h>
21 #include <linux/mutex.h>
22 #include <linux/slab.h>
23
24 #include <media/v4l2-common.h>
25 #include <media/v4l2-ioctl.h>
26 #include <media/v4l2-event.h>
27 #include <media/drv-intf/msp3400.h>
28 #include <media/tuner.h>
29
30 #include <media/dvb_frontend.h>
31
32 #include "cx231xx-vbi.h"
33
34 #define CX231XX_VERSION "0.0.3"
35
36 #define DRIVER_AUTHOR "Srinivasa Deevi <srinivasa.deevi@conexant.com>"
37 #define DRIVER_DESC "Conexant cx231xx based USB video device driver"
38
39 #define cx231xx_videodbg(fmt, arg...) do {\
40 if (video_debug) \
41 printk(KERN_INFO "%s %s :"fmt, \
42 dev->name, __func__ , ##arg); } while (0)
43
44 static unsigned int isoc_debug;
45 module_param(isoc_debug, int, 0644);
46 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
47
48 #define cx231xx_isocdbg(fmt, arg...) \
49 do {\
50 if (isoc_debug) { \
51 printk(KERN_INFO "%s %s :"fmt, \
52 dev->name, __func__ , ##arg); \
53 } \
54 } while (0)
55
56 MODULE_AUTHOR(DRIVER_AUTHOR);
57 MODULE_DESCRIPTION(DRIVER_DESC);
58 MODULE_LICENSE("GPL");
59 MODULE_VERSION(CX231XX_VERSION);
60
61 static unsigned int card[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = -1U };
62 static unsigned int video_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = -1U };
63 static unsigned int vbi_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = -1U };
64 static unsigned int radio_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = -1U };
65
66 module_param_array(card, int, NULL, 0444);
67 module_param_array(video_nr, int, NULL, 0444);
68 module_param_array(vbi_nr, int, NULL, 0444);
69 module_param_array(radio_nr, int, NULL, 0444);
70
71 MODULE_PARM_DESC(card, "card type");
72 MODULE_PARM_DESC(video_nr, "video device numbers");
73 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
74 MODULE_PARM_DESC(radio_nr, "radio device numbers");
75
76 static unsigned int video_debug;
77 module_param(video_debug, int, 0644);
78 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
79
80 /* supported video standards */
81 static struct cx231xx_fmt format[] = {
82 {
83 .fourcc = V4L2_PIX_FMT_YUYV,
84 .depth = 16,
85 .reg = 0,
86 },
87 };
88
89
90 static int cx231xx_enable_analog_tuner(struct cx231xx *dev)
91 {
92 #ifdef CONFIG_MEDIA_CONTROLLER
93 struct media_device *mdev = dev->media_dev;
94 struct media_entity *entity, *decoder = NULL, *source;
95 struct media_link *link, *found_link = NULL;
96 int ret, active_links = 0;
97
98 if (!mdev)
99 return 0;
100
101 /*
102 * This will find the tuner that is connected into the decoder.
103 * Technically, this is not 100% correct, as the device may be
104 * using an analog input instead of the tuner. However, as we can't
105 * do DVB streaming while the DMA engine is being used for V4L2,
106 * this should be enough for the actual needs.
107 */
108 media_device_for_each_entity(entity, mdev) {
109 if (entity->function == MEDIA_ENT_F_ATV_DECODER) {
110 decoder = entity;
111 break;
112 }
113 }
114 if (!decoder)
115 return 0;
116
117 list_for_each_entry(link, &decoder->links, list) {
118 if (link->sink->entity == decoder) {
119 found_link = link;
120 if (link->flags & MEDIA_LNK_FL_ENABLED)
121 active_links++;
122 break;
123 }
124 }
125
126 if (active_links == 1 || !found_link)
127 return 0;
128
129 source = found_link->source->entity;
130 list_for_each_entry(link, &source->links, list) {
131 struct media_entity *sink;
132 int flags = 0;
133
134 sink = link->sink->entity;
135
136 if (sink == entity)
137 flags = MEDIA_LNK_FL_ENABLED;
138
139 ret = media_entity_setup_link(link, flags);
140 if (ret) {
141 dev_err(dev->dev,
142 "Couldn't change link %s->%s to %s. Error %d\n",
143 source->name, sink->name,
144 flags ? "enabled" : "disabled",
145 ret);
146 return ret;
147 } else
148 dev_dbg(dev->dev,
149 "link %s->%s was %s\n",
150 source->name, sink->name,
151 flags ? "ENABLED" : "disabled");
152 }
153 #endif
154 return 0;
155 }
156
157 /* ------------------------------------------------------------------
158 Video buffer and parser functions
159 ------------------------------------------------------------------*/
160
161 /*
162 * Announces that a buffer were filled and request the next
163 */
164 static inline void buffer_filled(struct cx231xx *dev,
165 struct cx231xx_dmaqueue *dma_q,
166 struct cx231xx_buffer *buf)
167 {
168 /* Advice that buffer was filled */
169 cx231xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.vb2_buf.index);
170 buf->vb.sequence = dma_q->sequence++;
171 buf->vb.field = V4L2_FIELD_INTERLACED;
172 buf->vb.vb2_buf.timestamp = ktime_get_ns();
173 vb2_set_plane_payload(&buf->vb.vb2_buf, 0, dev->size);
174
175 if (dev->USE_ISO)
176 dev->video_mode.isoc_ctl.buf = NULL;
177 else
178 dev->video_mode.bulk_ctl.buf = NULL;
179
180 list_del(&buf->list);
181 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
182 }
183
184 static inline void print_err_status(struct cx231xx *dev, int packet, int status)
185 {
186 char *errmsg = "Unknown";
187
188 switch (status) {
189 case -ENOENT:
190 errmsg = "unlinked synchronously";
191 break;
192 case -ECONNRESET:
193 errmsg = "unlinked asynchronously";
194 break;
195 case -ENOSR:
196 errmsg = "Buffer error (overrun)";
197 break;
198 case -EPIPE:
199 errmsg = "Stalled (device not responding)";
200 break;
201 case -EOVERFLOW:
202 errmsg = "Babble (bad cable?)";
203 break;
204 case -EPROTO:
205 errmsg = "Bit-stuff error (bad cable?)";
206 break;
207 case -EILSEQ:
208 errmsg = "CRC/Timeout (could be anything)";
209 break;
210 case -ETIME:
211 errmsg = "Device does not respond";
212 break;
213 }
214 if (packet < 0) {
215 cx231xx_isocdbg("URB status %d [%s].\n", status, errmsg);
216 } else {
217 cx231xx_isocdbg("URB packet %d, status %d [%s].\n",
218 packet, status, errmsg);
219 }
220 }
221
222 /*
223 * video-buf generic routine to get the next available buffer
224 */
225 static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q,
226 struct cx231xx_buffer **buf)
227 {
228 struct cx231xx_video_mode *vmode =
229 container_of(dma_q, struct cx231xx_video_mode, vidq);
230 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
231
232 char *outp;
233
234 if (list_empty(&dma_q->active)) {
235 cx231xx_isocdbg("No active queue to serve\n");
236 if (dev->USE_ISO)
237 dev->video_mode.isoc_ctl.buf = NULL;
238 else
239 dev->video_mode.bulk_ctl.buf = NULL;
240 *buf = NULL;
241 return;
242 }
243
244 /* Get the next buffer */
245 *buf = list_entry(dma_q->active.next, struct cx231xx_buffer, list);
246
247 /* Cleans up buffer - Useful for testing for frame/URB loss */
248 outp = vb2_plane_vaddr(&(*buf)->vb.vb2_buf, 0);
249 memset(outp, 0, dev->size);
250
251 if (dev->USE_ISO)
252 dev->video_mode.isoc_ctl.buf = *buf;
253 else
254 dev->video_mode.bulk_ctl.buf = *buf;
255
256 return;
257 }
258
259 /*
260 * Controls the isoc copy of each urb packet
261 */
262 static inline int cx231xx_isoc_copy(struct cx231xx *dev, struct urb *urb)
263 {
264 struct cx231xx_dmaqueue *dma_q = urb->context;
265 int i;
266 unsigned char *p_buffer;
267 u32 bytes_parsed = 0, buffer_size = 0;
268 u8 sav_eav = 0;
269
270 if (!dev)
271 return 0;
272
273 if (dev->state & DEV_DISCONNECTED)
274 return 0;
275
276 if (urb->status < 0) {
277 print_err_status(dev, -1, urb->status);
278 if (urb->status == -ENOENT)
279 return 0;
280 }
281
282 for (i = 0; i < urb->number_of_packets; i++) {
283 int status = urb->iso_frame_desc[i].status;
284
285 if (status < 0) {
286 print_err_status(dev, i, status);
287 if (urb->iso_frame_desc[i].status != -EPROTO)
288 continue;
289 }
290
291 if (urb->iso_frame_desc[i].actual_length <= 0) {
292 /* cx231xx_isocdbg("packet %d is empty",i); - spammy */
293 continue;
294 }
295 if (urb->iso_frame_desc[i].actual_length >
296 dev->video_mode.max_pkt_size) {
297 cx231xx_isocdbg("packet bigger than packet size");
298 continue;
299 }
300
301 /* get buffer pointer and length */
302 p_buffer = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
303 buffer_size = urb->iso_frame_desc[i].actual_length;
304 bytes_parsed = 0;
305
306 if (dma_q->is_partial_line) {
307 /* Handle the case of a partial line */
308 sav_eav = dma_q->last_sav;
309 } else {
310 /* Check for a SAV/EAV overlapping
311 the buffer boundary */
312 sav_eav =
313 cx231xx_find_boundary_SAV_EAV(p_buffer,
314 dma_q->partial_buf,
315 &bytes_parsed);
316 }
317
318 sav_eav &= 0xF0;
319 /* Get the first line if we have some portion of an SAV/EAV from
320 the last buffer or a partial line */
321 if (sav_eav) {
322 bytes_parsed += cx231xx_get_video_line(dev, dma_q,
323 sav_eav, /* SAV/EAV */
324 p_buffer + bytes_parsed, /* p_buffer */
325 buffer_size - bytes_parsed);/* buf size */
326 }
327
328 /* Now parse data that is completely in this buffer */
329 /* dma_q->is_partial_line = 0; */
330
331 while (bytes_parsed < buffer_size) {
332 u32 bytes_used = 0;
333
334 sav_eav = cx231xx_find_next_SAV_EAV(
335 p_buffer + bytes_parsed, /* p_buffer */
336 buffer_size - bytes_parsed, /* buf size */
337 &bytes_used);/* bytes used to get SAV/EAV */
338
339 bytes_parsed += bytes_used;
340
341 sav_eav &= 0xF0;
342 if (sav_eav && (bytes_parsed < buffer_size)) {
343 bytes_parsed += cx231xx_get_video_line(dev,
344 dma_q, sav_eav, /* SAV/EAV */
345 p_buffer + bytes_parsed,/* p_buffer */
346 buffer_size - bytes_parsed);/*buf size*/
347 }
348 }
349
350 /* Save the last four bytes of the buffer so we can check the
351 buffer boundary condition next time */
352 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
353 bytes_parsed = 0;
354
355 }
356 return 1;
357 }
358
359 static inline int cx231xx_bulk_copy(struct cx231xx *dev, struct urb *urb)
360 {
361 struct cx231xx_dmaqueue *dma_q = urb->context;
362 unsigned char *p_buffer;
363 u32 bytes_parsed = 0, buffer_size = 0;
364 u8 sav_eav = 0;
365
366 if (!dev)
367 return 0;
368
369 if (dev->state & DEV_DISCONNECTED)
370 return 0;
371
372 if (urb->status < 0) {
373 print_err_status(dev, -1, urb->status);
374 if (urb->status == -ENOENT)
375 return 0;
376 }
377
378 if (1) {
379
380 /* get buffer pointer and length */
381 p_buffer = urb->transfer_buffer;
382 buffer_size = urb->actual_length;
383 bytes_parsed = 0;
384
385 if (dma_q->is_partial_line) {
386 /* Handle the case of a partial line */
387 sav_eav = dma_q->last_sav;
388 } else {
389 /* Check for a SAV/EAV overlapping
390 the buffer boundary */
391 sav_eav =
392 cx231xx_find_boundary_SAV_EAV(p_buffer,
393 dma_q->partial_buf,
394 &bytes_parsed);
395 }
396
397 sav_eav &= 0xF0;
398 /* Get the first line if we have some portion of an SAV/EAV from
399 the last buffer or a partial line */
400 if (sav_eav) {
401 bytes_parsed += cx231xx_get_video_line(dev, dma_q,
402 sav_eav, /* SAV/EAV */
403 p_buffer + bytes_parsed, /* p_buffer */
404 buffer_size - bytes_parsed);/* buf size */
405 }
406
407 /* Now parse data that is completely in this buffer */
408 /* dma_q->is_partial_line = 0; */
409
410 while (bytes_parsed < buffer_size) {
411 u32 bytes_used = 0;
412
413 sav_eav = cx231xx_find_next_SAV_EAV(
414 p_buffer + bytes_parsed, /* p_buffer */
415 buffer_size - bytes_parsed, /* buf size */
416 &bytes_used);/* bytes used to get SAV/EAV */
417
418 bytes_parsed += bytes_used;
419
420 sav_eav &= 0xF0;
421 if (sav_eav && (bytes_parsed < buffer_size)) {
422 bytes_parsed += cx231xx_get_video_line(dev,
423 dma_q, sav_eav, /* SAV/EAV */
424 p_buffer + bytes_parsed,/* p_buffer */
425 buffer_size - bytes_parsed);/*buf size*/
426 }
427 }
428
429 /* Save the last four bytes of the buffer so we can check the
430 buffer boundary condition next time */
431 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
432 bytes_parsed = 0;
433
434 }
435 return 1;
436 }
437
438
439 u8 cx231xx_find_boundary_SAV_EAV(u8 *p_buffer, u8 *partial_buf,
440 u32 *p_bytes_used)
441 {
442 u32 bytes_used;
443 u8 boundary_bytes[8];
444 u8 sav_eav = 0;
445
446 *p_bytes_used = 0;
447
448 /* Create an array of the last 4 bytes of the last buffer and the first
449 4 bytes of the current buffer. */
450
451 memcpy(boundary_bytes, partial_buf, 4);
452 memcpy(boundary_bytes + 4, p_buffer, 4);
453
454 /* Check for the SAV/EAV in the boundary buffer */
455 sav_eav = cx231xx_find_next_SAV_EAV((u8 *)&boundary_bytes, 8,
456 &bytes_used);
457
458 if (sav_eav) {
459 /* found a boundary SAV/EAV. Updates the bytes used to reflect
460 only those used in the new buffer */
461 *p_bytes_used = bytes_used - 4;
462 }
463
464 return sav_eav;
465 }
466
467 u8 cx231xx_find_next_SAV_EAV(u8 *p_buffer, u32 buffer_size, u32 *p_bytes_used)
468 {
469 u32 i;
470 u8 sav_eav = 0;
471
472 /*
473 * Don't search if the buffer size is less than 4. It causes a page
474 * fault since buffer_size - 4 evaluates to a large number in that
475 * case.
476 */
477 if (buffer_size < 4) {
478 *p_bytes_used = buffer_size;
479 return 0;
480 }
481
482 for (i = 0; i < (buffer_size - 3); i++) {
483
484 if ((p_buffer[i] == 0xFF) &&
485 (p_buffer[i + 1] == 0x00) && (p_buffer[i + 2] == 0x00)) {
486
487 *p_bytes_used = i + 4;
488 sav_eav = p_buffer[i + 3];
489 return sav_eav;
490 }
491 }
492
493 *p_bytes_used = buffer_size;
494 return 0;
495 }
496
497 u32 cx231xx_get_video_line(struct cx231xx *dev,
498 struct cx231xx_dmaqueue *dma_q, u8 sav_eav,
499 u8 *p_buffer, u32 buffer_size)
500 {
501 u32 bytes_copied = 0;
502 int current_field = -1;
503
504 switch (sav_eav) {
505 case SAV_ACTIVE_VIDEO_FIELD1:
506 /* looking for skipped line which occurred in PAL 720x480 mode.
507 In this case, there will be no active data contained
508 between the SAV and EAV */
509 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
510 (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
511 ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
512 (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
513 (p_buffer[3] == EAV_VBLANK_FIELD1) ||
514 (p_buffer[3] == EAV_VBLANK_FIELD2)))
515 return bytes_copied;
516 current_field = 1;
517 break;
518
519 case SAV_ACTIVE_VIDEO_FIELD2:
520 /* looking for skipped line which occurred in PAL 720x480 mode.
521 In this case, there will be no active data contained between
522 the SAV and EAV */
523 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
524 (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
525 ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
526 (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
527 (p_buffer[3] == EAV_VBLANK_FIELD1) ||
528 (p_buffer[3] == EAV_VBLANK_FIELD2)))
529 return bytes_copied;
530 current_field = 2;
531 break;
532 }
533
534 dma_q->last_sav = sav_eav;
535
536 bytes_copied = cx231xx_copy_video_line(dev, dma_q, p_buffer,
537 buffer_size, current_field);
538
539 return bytes_copied;
540 }
541
542 u32 cx231xx_copy_video_line(struct cx231xx *dev,
543 struct cx231xx_dmaqueue *dma_q, u8 *p_line,
544 u32 length, int field_number)
545 {
546 u32 bytes_to_copy;
547 struct cx231xx_buffer *buf;
548 u32 _line_size = dev->width * 2;
549
550 if (dma_q->current_field != field_number)
551 cx231xx_reset_video_buffer(dev, dma_q);
552
553 /* get the buffer pointer */
554 if (dev->USE_ISO)
555 buf = dev->video_mode.isoc_ctl.buf;
556 else
557 buf = dev->video_mode.bulk_ctl.buf;
558
559 /* Remember the field number for next time */
560 dma_q->current_field = field_number;
561
562 bytes_to_copy = dma_q->bytes_left_in_line;
563 if (bytes_to_copy > length)
564 bytes_to_copy = length;
565
566 if (dma_q->lines_completed >= dma_q->lines_per_field) {
567 dma_q->bytes_left_in_line -= bytes_to_copy;
568 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ?
569 0 : 1;
570 return 0;
571 }
572
573 dma_q->is_partial_line = 1;
574
575 /* If we don't have a buffer, just return the number of bytes we would
576 have copied if we had a buffer. */
577 if (!buf) {
578 dma_q->bytes_left_in_line -= bytes_to_copy;
579 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0)
580 ? 0 : 1;
581 return bytes_to_copy;
582 }
583
584 /* copy the data to video buffer */
585 cx231xx_do_copy(dev, dma_q, p_line, bytes_to_copy);
586
587 dma_q->pos += bytes_to_copy;
588 dma_q->bytes_left_in_line -= bytes_to_copy;
589
590 if (dma_q->bytes_left_in_line == 0) {
591 dma_q->bytes_left_in_line = _line_size;
592 dma_q->lines_completed++;
593 dma_q->is_partial_line = 0;
594
595 if (cx231xx_is_buffer_done(dev, dma_q) && buf) {
596 buffer_filled(dev, dma_q, buf);
597
598 dma_q->pos = 0;
599 buf = NULL;
600 dma_q->lines_completed = 0;
601 }
602 }
603
604 return bytes_to_copy;
605 }
606
607 void cx231xx_reset_video_buffer(struct cx231xx *dev,
608 struct cx231xx_dmaqueue *dma_q)
609 {
610 struct cx231xx_buffer *buf;
611
612 /* handle the switch from field 1 to field 2 */
613 if (dma_q->current_field == 1) {
614 if (dma_q->lines_completed >= dma_q->lines_per_field)
615 dma_q->field1_done = 1;
616 else
617 dma_q->field1_done = 0;
618 }
619
620 if (dev->USE_ISO)
621 buf = dev->video_mode.isoc_ctl.buf;
622 else
623 buf = dev->video_mode.bulk_ctl.buf;
624
625 if (buf == NULL) {
626 /* first try to get the buffer */
627 get_next_buf(dma_q, &buf);
628
629 dma_q->pos = 0;
630 dma_q->field1_done = 0;
631 dma_q->current_field = -1;
632 }
633
634 /* reset the counters */
635 dma_q->bytes_left_in_line = dev->width << 1;
636 dma_q->lines_completed = 0;
637 }
638
639 int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
640 u8 *p_buffer, u32 bytes_to_copy)
641 {
642 u8 *p_out_buffer = NULL;
643 u32 current_line_bytes_copied = 0;
644 struct cx231xx_buffer *buf;
645 u32 _line_size = dev->width << 1;
646 void *startwrite;
647 int offset, lencopy;
648
649 if (dev->USE_ISO)
650 buf = dev->video_mode.isoc_ctl.buf;
651 else
652 buf = dev->video_mode.bulk_ctl.buf;
653
654 if (buf == NULL)
655 return -1;
656
657 p_out_buffer = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
658
659 current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line;
660
661 /* Offset field 2 one line from the top of the buffer */
662 offset = (dma_q->current_field == 1) ? 0 : _line_size;
663
664 /* Offset for field 2 */
665 startwrite = p_out_buffer + offset;
666
667 /* lines already completed in the current field */
668 startwrite += (dma_q->lines_completed * _line_size * 2);
669
670 /* bytes already completed in the current line */
671 startwrite += current_line_bytes_copied;
672
673 lencopy = dma_q->bytes_left_in_line > bytes_to_copy ?
674 bytes_to_copy : dma_q->bytes_left_in_line;
675
676 if ((u8 *)(startwrite + lencopy) > (u8 *)(p_out_buffer + dev->size))
677 return 0;
678
679 /* The below copies the UYVY data straight into video buffer */
680 cx231xx_swab((u16 *) p_buffer, (u16 *) startwrite, (u16) lencopy);
681
682 return 0;
683 }
684
685 void cx231xx_swab(u16 *from, u16 *to, u16 len)
686 {
687 u16 i;
688
689 if (len <= 0)
690 return;
691
692 for (i = 0; i < len / 2; i++)
693 to[i] = (from[i] << 8) | (from[i] >> 8);
694 }
695
696 u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q)
697 {
698 u8 buffer_complete = 0;
699
700 /* Dual field stream */
701 buffer_complete = ((dma_q->current_field == 2) &&
702 (dma_q->lines_completed >= dma_q->lines_per_field) &&
703 dma_q->field1_done);
704
705 return buffer_complete;
706 }
707
708 /* ------------------------------------------------------------------
709 Videobuf operations
710 ------------------------------------------------------------------*/
711
712 static int queue_setup(struct vb2_queue *vq,
713 unsigned int *nbuffers, unsigned int *nplanes,
714 unsigned int sizes[], struct device *alloc_devs[])
715 {
716 struct cx231xx *dev = vb2_get_drv_priv(vq);
717
718 dev->size = (dev->width * dev->height * dev->format->depth + 7) >> 3;
719
720 if (vq->num_buffers + *nbuffers < CX231XX_MIN_BUF)
721 *nbuffers = CX231XX_MIN_BUF - vq->num_buffers;
722
723 if (*nplanes)
724 return sizes[0] < dev->size ? -EINVAL : 0;
725 *nplanes = 1;
726 sizes[0] = dev->size;
727
728 return 0;
729 }
730
731 static void buffer_queue(struct vb2_buffer *vb)
732 {
733 struct cx231xx_buffer *buf =
734 container_of(vb, struct cx231xx_buffer, vb.vb2_buf);
735 struct cx231xx *dev = vb2_get_drv_priv(vb->vb2_queue);
736 struct cx231xx_dmaqueue *vidq = &dev->video_mode.vidq;
737 unsigned long flags;
738
739 spin_lock_irqsave(&dev->video_mode.slock, flags);
740 list_add_tail(&buf->list, &vidq->active);
741 spin_unlock_irqrestore(&dev->video_mode.slock, flags);
742 }
743
744 static void return_all_buffers(struct cx231xx *dev,
745 enum vb2_buffer_state state)
746 {
747 struct cx231xx_dmaqueue *vidq = &dev->video_mode.vidq;
748 struct cx231xx_buffer *buf, *node;
749 unsigned long flags;
750
751 spin_lock_irqsave(&dev->video_mode.slock, flags);
752 if (dev->USE_ISO)
753 dev->video_mode.isoc_ctl.buf = NULL;
754 else
755 dev->video_mode.bulk_ctl.buf = NULL;
756 list_for_each_entry_safe(buf, node, &vidq->active, list) {
757 list_del(&buf->list);
758 vb2_buffer_done(&buf->vb.vb2_buf, state);
759 }
760 spin_unlock_irqrestore(&dev->video_mode.slock, flags);
761 }
762
763 static int start_streaming(struct vb2_queue *vq, unsigned int count)
764 {
765 struct cx231xx *dev = vb2_get_drv_priv(vq);
766 struct cx231xx_dmaqueue *vidq = &dev->video_mode.vidq;
767 int ret = 0;
768
769 vidq->sequence = 0;
770 dev->mode_tv = 0;
771
772 cx231xx_enable_analog_tuner(dev);
773 if (dev->USE_ISO)
774 ret = cx231xx_init_isoc(dev, CX231XX_NUM_PACKETS,
775 CX231XX_NUM_BUFS,
776 dev->video_mode.max_pkt_size,
777 cx231xx_isoc_copy);
778 else
779 ret = cx231xx_init_bulk(dev, CX231XX_NUM_PACKETS,
780 CX231XX_NUM_BUFS,
781 dev->video_mode.max_pkt_size,
782 cx231xx_bulk_copy);
783 if (ret)
784 return_all_buffers(dev, VB2_BUF_STATE_QUEUED);
785 call_all(dev, video, s_stream, 1);
786 return ret;
787 }
788
789 static void stop_streaming(struct vb2_queue *vq)
790 {
791 struct cx231xx *dev = vb2_get_drv_priv(vq);
792
793 call_all(dev, video, s_stream, 0);
794 return_all_buffers(dev, VB2_BUF_STATE_ERROR);
795 }
796
797 static struct vb2_ops cx231xx_video_qops = {
798 .queue_setup = queue_setup,
799 .buf_queue = buffer_queue,
800 .start_streaming = start_streaming,
801 .stop_streaming = stop_streaming,
802 .wait_prepare = vb2_ops_wait_prepare,
803 .wait_finish = vb2_ops_wait_finish,
804 };
805
806 /********************* v4l2 interface **************************************/
807
808 void video_mux(struct cx231xx *dev, int index)
809 {
810 dev->video_input = index;
811 dev->ctl_ainput = INPUT(index)->amux;
812
813 cx231xx_set_video_input_mux(dev, index);
814
815 cx25840_call(dev, video, s_routing, INPUT(index)->vmux, 0, 0);
816
817 cx231xx_set_audio_input(dev, dev->ctl_ainput);
818
819 dev_dbg(dev->dev, "video_mux : %d\n", index);
820
821 /* do mode control overrides if required */
822 cx231xx_do_mode_ctrl_overrides(dev);
823 }
824
825 /* ------------------------------------------------------------------
826 IOCTL vidioc handling
827 ------------------------------------------------------------------*/
828
829 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
830 struct v4l2_format *f)
831 {
832 struct cx231xx *dev = video_drvdata(file);
833
834 f->fmt.pix.width = dev->width;
835 f->fmt.pix.height = dev->height;
836 f->fmt.pix.pixelformat = dev->format->fourcc;
837 f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3;
838 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height;
839 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
840
841 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
842
843 return 0;
844 }
845
846 static struct cx231xx_fmt *format_by_fourcc(unsigned int fourcc)
847 {
848 unsigned int i;
849
850 for (i = 0; i < ARRAY_SIZE(format); i++)
851 if (format[i].fourcc == fourcc)
852 return &format[i];
853
854 return NULL;
855 }
856
857 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
858 struct v4l2_format *f)
859 {
860 struct cx231xx *dev = video_drvdata(file);
861 unsigned int width = f->fmt.pix.width;
862 unsigned int height = f->fmt.pix.height;
863 unsigned int maxw = norm_maxw(dev);
864 unsigned int maxh = norm_maxh(dev);
865 struct cx231xx_fmt *fmt;
866
867 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
868 if (!fmt) {
869 cx231xx_videodbg("Fourcc format (%08x) invalid.\n",
870 f->fmt.pix.pixelformat);
871 return -EINVAL;
872 }
873
874 /* width must even because of the YUYV format
875 height must be even because of interlacing */
876 v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh, 1, 0);
877
878 f->fmt.pix.width = width;
879 f->fmt.pix.height = height;
880 f->fmt.pix.pixelformat = fmt->fourcc;
881 f->fmt.pix.bytesperline = (width * fmt->depth + 7) >> 3;
882 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height;
883 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
884 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
885
886 return 0;
887 }
888
889 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
890 struct v4l2_format *f)
891 {
892 struct cx231xx *dev = video_drvdata(file);
893 struct v4l2_subdev_format format = {
894 .which = V4L2_SUBDEV_FORMAT_ACTIVE,
895 };
896 int rc;
897
898 rc = vidioc_try_fmt_vid_cap(file, priv, f);
899 if (rc)
900 return rc;
901
902 if (vb2_is_busy(&dev->vidq)) {
903 dev_err(dev->dev, "%s: queue busy\n", __func__);
904 return -EBUSY;
905 }
906
907 /* set new image size */
908 dev->width = f->fmt.pix.width;
909 dev->height = f->fmt.pix.height;
910 dev->format = format_by_fourcc(f->fmt.pix.pixelformat);
911
912 v4l2_fill_mbus_format(&format.format, &f->fmt.pix, MEDIA_BUS_FMT_FIXED);
913 call_all(dev, pad, set_fmt, NULL, &format);
914 v4l2_fill_pix_format(&f->fmt.pix, &format.format);
915
916 return rc;
917 }
918
919 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
920 {
921 struct cx231xx *dev = video_drvdata(file);
922
923 *id = dev->norm;
924 return 0;
925 }
926
927 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
928 {
929 struct cx231xx *dev = video_drvdata(file);
930 struct v4l2_subdev_format format = {
931 .which = V4L2_SUBDEV_FORMAT_ACTIVE,
932 };
933
934 if (dev->norm == norm)
935 return 0;
936
937 if (vb2_is_busy(&dev->vidq))
938 return -EBUSY;
939
940 dev->norm = norm;
941
942 /* Adjusts width/height, if needed */
943 dev->width = 720;
944 dev->height = (dev->norm & V4L2_STD_625_50) ? 576 : 480;
945
946 call_all(dev, video, s_std, dev->norm);
947
948 /* We need to reset basic properties in the decoder related to
949 resolution (since a standard change effects things like the number
950 of lines in VACT, etc) */
951 format.format.code = MEDIA_BUS_FMT_FIXED;
952 format.format.width = dev->width;
953 format.format.height = dev->height;
954 call_all(dev, pad, set_fmt, NULL, &format);
955
956 /* do mode control overrides */
957 cx231xx_do_mode_ctrl_overrides(dev);
958
959 return 0;
960 }
961
962 static const char *iname[] = {
963 [CX231XX_VMUX_COMPOSITE1] = "Composite1",
964 [CX231XX_VMUX_SVIDEO] = "S-Video",
965 [CX231XX_VMUX_TELEVISION] = "Television",
966 [CX231XX_VMUX_CABLE] = "Cable TV",
967 [CX231XX_VMUX_DVB] = "DVB",
968 };
969
970 void cx231xx_v4l2_create_entities(struct cx231xx *dev)
971 {
972 #if defined(CONFIG_MEDIA_CONTROLLER)
973 int ret, i;
974
975 /* Create entities for each input connector */
976 for (i = 0; i < MAX_CX231XX_INPUT; i++) {
977 struct media_entity *ent = &dev->input_ent[i];
978
979 if (!INPUT(i)->type)
980 break;
981
982 ent->name = iname[INPUT(i)->type];
983 ent->flags = MEDIA_ENT_FL_CONNECTOR;
984 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
985
986 switch (INPUT(i)->type) {
987 case CX231XX_VMUX_COMPOSITE1:
988 ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
989 break;
990 case CX231XX_VMUX_SVIDEO:
991 ent->function = MEDIA_ENT_F_CONN_SVIDEO;
992 break;
993 case CX231XX_VMUX_TELEVISION:
994 case CX231XX_VMUX_CABLE:
995 case CX231XX_VMUX_DVB:
996 /* The DVB core will handle it */
997 if (dev->tuner_type == TUNER_ABSENT)
998 continue;
999 /* fall through */
1000 default: /* just to shut up a gcc warning */
1001 ent->function = MEDIA_ENT_F_CONN_RF;
1002 break;
1003 }
1004
1005 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
1006 if (ret < 0)
1007 pr_err("failed to initialize input pad[%d]!\n", i);
1008
1009 ret = media_device_register_entity(dev->media_dev, ent);
1010 if (ret < 0)
1011 pr_err("failed to register input entity %d!\n", i);
1012 }
1013 #endif
1014 }
1015
1016 int cx231xx_enum_input(struct file *file, void *priv,
1017 struct v4l2_input *i)
1018 {
1019 struct cx231xx *dev = video_drvdata(file);
1020 u32 gen_stat;
1021 unsigned int n;
1022 int ret;
1023
1024 n = i->index;
1025 if (n >= MAX_CX231XX_INPUT)
1026 return -EINVAL;
1027 if (0 == INPUT(n)->type)
1028 return -EINVAL;
1029
1030 i->index = n;
1031 i->type = V4L2_INPUT_TYPE_CAMERA;
1032
1033 strscpy(i->name, iname[INPUT(n)->type], sizeof(i->name));
1034
1035 if ((CX231XX_VMUX_TELEVISION == INPUT(n)->type) ||
1036 (CX231XX_VMUX_CABLE == INPUT(n)->type))
1037 i->type = V4L2_INPUT_TYPE_TUNER;
1038
1039 i->std = dev->vdev.tvnorms;
1040
1041 /* If they are asking about the active input, read signal status */
1042 if (n == dev->video_input) {
1043 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1044 GEN_STAT, 2, &gen_stat, 4);
1045 if (ret > 0) {
1046 if ((gen_stat & FLD_VPRES) == 0x00)
1047 i->status |= V4L2_IN_ST_NO_SIGNAL;
1048 if ((gen_stat & FLD_HLOCK) == 0x00)
1049 i->status |= V4L2_IN_ST_NO_H_LOCK;
1050 }
1051 }
1052
1053 return 0;
1054 }
1055
1056 int cx231xx_g_input(struct file *file, void *priv, unsigned int *i)
1057 {
1058 struct cx231xx *dev = video_drvdata(file);
1059
1060 *i = dev->video_input;
1061
1062 return 0;
1063 }
1064
1065 int cx231xx_s_input(struct file *file, void *priv, unsigned int i)
1066 {
1067 struct cx231xx *dev = video_drvdata(file);
1068
1069 dev->mode_tv = 0;
1070
1071 if (i >= MAX_CX231XX_INPUT)
1072 return -EINVAL;
1073 if (0 == INPUT(i)->type)
1074 return -EINVAL;
1075
1076 video_mux(dev, i);
1077
1078 if (INPUT(i)->type == CX231XX_VMUX_TELEVISION ||
1079 INPUT(i)->type == CX231XX_VMUX_CABLE) {
1080 /* There's a tuner, so reset the standard and put it on the
1081 last known frequency (since it was probably powered down
1082 until now */
1083 call_all(dev, video, s_std, dev->norm);
1084 }
1085
1086 return 0;
1087 }
1088
1089 int cx231xx_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1090 {
1091 struct cx231xx *dev = video_drvdata(file);
1092
1093 if (0 != t->index)
1094 return -EINVAL;
1095
1096 strscpy(t->name, "Tuner", sizeof(t->name));
1097
1098 t->type = V4L2_TUNER_ANALOG_TV;
1099 t->capability = V4L2_TUNER_CAP_NORM;
1100 t->rangehigh = 0xffffffffUL;
1101 t->signal = 0xffff; /* LOCKED */
1102 call_all(dev, tuner, g_tuner, t);
1103
1104 return 0;
1105 }
1106
1107 int cx231xx_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t)
1108 {
1109 if (0 != t->index)
1110 return -EINVAL;
1111 return 0;
1112 }
1113
1114 int cx231xx_g_frequency(struct file *file, void *priv,
1115 struct v4l2_frequency *f)
1116 {
1117 struct cx231xx *dev = video_drvdata(file);
1118
1119 if (f->tuner)
1120 return -EINVAL;
1121
1122 f->frequency = dev->ctl_freq;
1123
1124 return 0;
1125 }
1126
1127 int cx231xx_s_frequency(struct file *file, void *priv,
1128 const struct v4l2_frequency *f)
1129 {
1130 struct cx231xx *dev = video_drvdata(file);
1131 struct v4l2_frequency new_freq = *f;
1132 int rc;
1133 u32 if_frequency = 5400000;
1134
1135 dev_dbg(dev->dev,
1136 "Enter vidioc_s_frequency()f->frequency=%d;f->type=%d\n",
1137 f->frequency, f->type);
1138
1139 if (0 != f->tuner)
1140 return -EINVAL;
1141
1142 /* set pre channel change settings in DIF first */
1143 rc = cx231xx_tuner_pre_channel_change(dev);
1144
1145 call_all(dev, tuner, s_frequency, f);
1146 call_all(dev, tuner, g_frequency, &new_freq);
1147 dev->ctl_freq = new_freq.frequency;
1148
1149 /* set post channel change settings in DIF first */
1150 rc = cx231xx_tuner_post_channel_change(dev);
1151
1152 if (dev->tuner_type == TUNER_NXP_TDA18271) {
1153 if (dev->norm & (V4L2_STD_MN | V4L2_STD_NTSC_443))
1154 if_frequency = 5400000; /*5.4MHz */
1155 else if (dev->norm & V4L2_STD_B)
1156 if_frequency = 6000000; /*6.0MHz */
1157 else if (dev->norm & (V4L2_STD_PAL_DK | V4L2_STD_SECAM_DK))
1158 if_frequency = 6900000; /*6.9MHz */
1159 else if (dev->norm & V4L2_STD_GH)
1160 if_frequency = 7100000; /*7.1MHz */
1161 else if (dev->norm & V4L2_STD_PAL_I)
1162 if_frequency = 7250000; /*7.25MHz */
1163 else if (dev->norm & V4L2_STD_SECAM_L)
1164 if_frequency = 6900000; /*6.9MHz */
1165 else if (dev->norm & V4L2_STD_SECAM_LC)
1166 if_frequency = 1250000; /*1.25MHz */
1167
1168 dev_dbg(dev->dev,
1169 "if_frequency is set to %d\n", if_frequency);
1170 cx231xx_set_Colibri_For_LowIF(dev, if_frequency, 1, 1);
1171
1172 update_HH_register_after_set_DIF(dev);
1173 }
1174
1175 dev_dbg(dev->dev, "Set New FREQUENCY to %d\n", f->frequency);
1176
1177 return rc;
1178 }
1179
1180 #ifdef CONFIG_VIDEO_ADV_DEBUG
1181
1182 int cx231xx_g_chip_info(struct file *file, void *fh,
1183 struct v4l2_dbg_chip_info *chip)
1184 {
1185 switch (chip->match.addr) {
1186 case 0: /* Cx231xx - internal registers */
1187 return 0;
1188 case 1: /* AFE - read byte */
1189 strscpy(chip->name, "AFE (byte)", sizeof(chip->name));
1190 return 0;
1191 case 2: /* Video Block - read byte */
1192 strscpy(chip->name, "Video (byte)", sizeof(chip->name));
1193 return 0;
1194 case 3: /* I2S block - read byte */
1195 strscpy(chip->name, "I2S (byte)", sizeof(chip->name));
1196 return 0;
1197 case 4: /* AFE - read dword */
1198 strscpy(chip->name, "AFE (dword)", sizeof(chip->name));
1199 return 0;
1200 case 5: /* Video Block - read dword */
1201 strscpy(chip->name, "Video (dword)", sizeof(chip->name));
1202 return 0;
1203 case 6: /* I2S Block - read dword */
1204 strscpy(chip->name, "I2S (dword)", sizeof(chip->name));
1205 return 0;
1206 }
1207 return -EINVAL;
1208 }
1209
1210 int cx231xx_g_register(struct file *file, void *priv,
1211 struct v4l2_dbg_register *reg)
1212 {
1213 struct cx231xx *dev = video_drvdata(file);
1214 int ret;
1215 u8 value[4] = { 0, 0, 0, 0 };
1216 u32 data = 0;
1217
1218 switch (reg->match.addr) {
1219 case 0: /* Cx231xx - internal registers */
1220 ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
1221 (u16)reg->reg, value, 4);
1222 reg->val = value[0] | value[1] << 8 |
1223 value[2] << 16 | (u32)value[3] << 24;
1224 reg->size = 4;
1225 break;
1226 case 1: /* AFE - read byte */
1227 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1228 (u16)reg->reg, 2, &data, 1);
1229 reg->val = data;
1230 reg->size = 1;
1231 break;
1232 case 2: /* Video Block - read byte */
1233 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1234 (u16)reg->reg, 2, &data, 1);
1235 reg->val = data;
1236 reg->size = 1;
1237 break;
1238 case 3: /* I2S block - read byte */
1239 ret = cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1240 (u16)reg->reg, 1, &data, 1);
1241 reg->val = data;
1242 reg->size = 1;
1243 break;
1244 case 4: /* AFE - read dword */
1245 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1246 (u16)reg->reg, 2, &data, 4);
1247 reg->val = data;
1248 reg->size = 4;
1249 break;
1250 case 5: /* Video Block - read dword */
1251 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1252 (u16)reg->reg, 2, &data, 4);
1253 reg->val = data;
1254 reg->size = 4;
1255 break;
1256 case 6: /* I2S Block - read dword */
1257 ret = cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1258 (u16)reg->reg, 1, &data, 4);
1259 reg->val = data;
1260 reg->size = 4;
1261 break;
1262 default:
1263 return -EINVAL;
1264 }
1265 return ret < 0 ? ret : 0;
1266 }
1267
1268 int cx231xx_s_register(struct file *file, void *priv,
1269 const struct v4l2_dbg_register *reg)
1270 {
1271 struct cx231xx *dev = video_drvdata(file);
1272 int ret;
1273 u8 data[4] = { 0, 0, 0, 0 };
1274
1275 switch (reg->match.addr) {
1276 case 0: /* cx231xx internal registers */
1277 data[0] = (u8) reg->val;
1278 data[1] = (u8) (reg->val >> 8);
1279 data[2] = (u8) (reg->val >> 16);
1280 data[3] = (u8) (reg->val >> 24);
1281 ret = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1282 (u16)reg->reg, data, 4);
1283 break;
1284 case 1: /* AFE - write byte */
1285 ret = cx231xx_write_i2c_data(dev, AFE_DEVICE_ADDRESS,
1286 (u16)reg->reg, 2, reg->val, 1);
1287 break;
1288 case 2: /* Video Block - write byte */
1289 ret = cx231xx_write_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1290 (u16)reg->reg, 2, reg->val, 1);
1291 break;
1292 case 3: /* I2S block - write byte */
1293 ret = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1294 (u16)reg->reg, 1, reg->val, 1);
1295 break;
1296 case 4: /* AFE - write dword */
1297 ret = cx231xx_write_i2c_data(dev, AFE_DEVICE_ADDRESS,
1298 (u16)reg->reg, 2, reg->val, 4);
1299 break;
1300 case 5: /* Video Block - write dword */
1301 ret = cx231xx_write_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1302 (u16)reg->reg, 2, reg->val, 4);
1303 break;
1304 case 6: /* I2S block - write dword */
1305 ret = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1306 (u16)reg->reg, 1, reg->val, 4);
1307 break;
1308 default:
1309 return -EINVAL;
1310 }
1311 return ret < 0 ? ret : 0;
1312 }
1313 #endif
1314
1315 static int vidioc_g_pixelaspect(struct file *file, void *priv,
1316 int type, struct v4l2_fract *f)
1317 {
1318 struct cx231xx *dev = video_drvdata(file);
1319 bool is_50hz = dev->norm & V4L2_STD_625_50;
1320
1321 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1322 return -EINVAL;
1323
1324 f->numerator = is_50hz ? 54 : 11;
1325 f->denominator = is_50hz ? 59 : 10;
1326
1327 return 0;
1328 }
1329
1330 static int vidioc_g_selection(struct file *file, void *priv,
1331 struct v4l2_selection *s)
1332 {
1333 struct cx231xx *dev = video_drvdata(file);
1334
1335 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1336 return -EINVAL;
1337
1338 switch (s->target) {
1339 case V4L2_SEL_TGT_CROP_BOUNDS:
1340 case V4L2_SEL_TGT_CROP_DEFAULT:
1341 s->r.left = 0;
1342 s->r.top = 0;
1343 s->r.width = dev->width;
1344 s->r.height = dev->height;
1345 break;
1346 default:
1347 return -EINVAL;
1348 }
1349 return 0;
1350 }
1351
1352 int cx231xx_querycap(struct file *file, void *priv,
1353 struct v4l2_capability *cap)
1354 {
1355 struct cx231xx *dev = video_drvdata(file);
1356
1357 strscpy(cap->driver, "cx231xx", sizeof(cap->driver));
1358 strscpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
1359 usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
1360 cap->capabilities = V4L2_CAP_READWRITE |
1361 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE |
1362 V4L2_CAP_STREAMING | V4L2_CAP_DEVICE_CAPS;
1363 if (video_is_registered(&dev->radio_dev))
1364 cap->capabilities |= V4L2_CAP_RADIO;
1365 if (dev->tuner_type != TUNER_ABSENT)
1366 cap->capabilities |= V4L2_CAP_TUNER;
1367
1368 return 0;
1369 }
1370
1371 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1372 struct v4l2_fmtdesc *f)
1373 {
1374 if (unlikely(f->index >= ARRAY_SIZE(format)))
1375 return -EINVAL;
1376
1377 f->pixelformat = format[f->index].fourcc;
1378
1379 return 0;
1380 }
1381
1382 /* RAW VBI ioctls */
1383
1384 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1385 struct v4l2_format *f)
1386 {
1387 struct cx231xx *dev = video_drvdata(file);
1388
1389 f->fmt.vbi.sampling_rate = 6750000 * 4;
1390 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1391 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1392 f->fmt.vbi.offset = 0;
1393 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1394 PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1395 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1396 PAL_VBI_LINES : NTSC_VBI_LINES;
1397 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1398 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1399 f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1400 memset(f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
1401
1402 return 0;
1403
1404 }
1405
1406 static int vidioc_try_fmt_vbi_cap(struct file *file, void *priv,
1407 struct v4l2_format *f)
1408 {
1409 struct cx231xx *dev = video_drvdata(file);
1410
1411 f->fmt.vbi.sampling_rate = 6750000 * 4;
1412 f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1413 f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1414 f->fmt.vbi.offset = 0;
1415 f->fmt.vbi.flags = 0;
1416 f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1417 PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1418 f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1419 PAL_VBI_LINES : NTSC_VBI_LINES;
1420 f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1421 PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1422 f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1423 memset(f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
1424
1425 return 0;
1426
1427 }
1428
1429 static int vidioc_s_fmt_vbi_cap(struct file *file, void *priv,
1430 struct v4l2_format *f)
1431 {
1432 return vidioc_try_fmt_vbi_cap(file, priv, f);
1433 }
1434
1435 /* ----------------------------------------------------------- */
1436 /* RADIO ESPECIFIC IOCTLS */
1437 /* ----------------------------------------------------------- */
1438
1439 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1440 {
1441 struct cx231xx *dev = video_drvdata(file);
1442
1443 if (t->index)
1444 return -EINVAL;
1445
1446 strscpy(t->name, "Radio", sizeof(t->name));
1447
1448 call_all(dev, tuner, g_tuner, t);
1449
1450 return 0;
1451 }
1452 static int radio_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t)
1453 {
1454 struct cx231xx *dev = video_drvdata(file);
1455
1456 if (t->index)
1457 return -EINVAL;
1458
1459 call_all(dev, tuner, s_tuner, t);
1460
1461 return 0;
1462 }
1463
1464 /*
1465 * cx231xx_v4l2_open()
1466 * inits the device and starts isoc transfer
1467 */
1468 static int cx231xx_v4l2_open(struct file *filp)
1469 {
1470 struct video_device *vdev = video_devdata(filp);
1471 struct cx231xx *dev = video_drvdata(filp);
1472 int ret;
1473
1474 if (mutex_lock_interruptible(&dev->lock))
1475 return -ERESTARTSYS;
1476
1477 ret = v4l2_fh_open(filp);
1478 if (ret) {
1479 mutex_unlock(&dev->lock);
1480 return ret;
1481 }
1482
1483 if (dev->users++ == 0) {
1484 /* Power up in Analog TV mode */
1485 if (dev->board.external_av)
1486 cx231xx_set_power_mode(dev,
1487 POLARIS_AVMODE_ENXTERNAL_AV);
1488 else
1489 cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV);
1490
1491 /* set video alternate setting */
1492 cx231xx_set_video_alternate(dev);
1493
1494 /* Needed, since GPIO might have disabled power of
1495 some i2c device */
1496 cx231xx_config_i2c(dev);
1497
1498 /* device needs to be initialized before isoc transfer */
1499 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1500 }
1501
1502 if (vdev->vfl_type == VFL_TYPE_RADIO) {
1503 cx231xx_videodbg("video_open: setting radio device\n");
1504
1505 /* cx231xx_start_radio(dev); */
1506
1507 call_all(dev, tuner, s_radio);
1508 }
1509 if (vdev->vfl_type == VFL_TYPE_VBI) {
1510 /* Set the required alternate setting VBI interface works in
1511 Bulk mode only */
1512 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1513 }
1514 mutex_unlock(&dev->lock);
1515 return 0;
1516 }
1517
1518 /*
1519 * cx231xx_realease_resources()
1520 * unregisters the v4l2,i2c and usb devices
1521 * called when the device gets disconnected or at module unload
1522 */
1523 void cx231xx_release_analog_resources(struct cx231xx *dev)
1524 {
1525
1526 /*FIXME: I2C IR should be disconnected */
1527
1528 if (video_is_registered(&dev->radio_dev))
1529 video_unregister_device(&dev->radio_dev);
1530 if (video_is_registered(&dev->vbi_dev)) {
1531 dev_info(dev->dev, "V4L2 device %s deregistered\n",
1532 video_device_node_name(&dev->vbi_dev));
1533 video_unregister_device(&dev->vbi_dev);
1534 }
1535 if (video_is_registered(&dev->vdev)) {
1536 dev_info(dev->dev, "V4L2 device %s deregistered\n",
1537 video_device_node_name(&dev->vdev));
1538
1539 if (dev->board.has_417)
1540 cx231xx_417_unregister(dev);
1541
1542 video_unregister_device(&dev->vdev);
1543 }
1544 v4l2_ctrl_handler_free(&dev->ctrl_handler);
1545 v4l2_ctrl_handler_free(&dev->radio_ctrl_handler);
1546 }
1547
1548 /*
1549 * cx231xx_close()
1550 * stops streaming and deallocates all resources allocated by the v4l2
1551 * calls and ioctls
1552 */
1553 static int cx231xx_close(struct file *filp)
1554 {
1555 struct cx231xx *dev = video_drvdata(filp);
1556 struct video_device *vdev = video_devdata(filp);
1557
1558 _vb2_fop_release(filp, NULL);
1559
1560 if (--dev->users == 0) {
1561 /* Save some power by putting tuner to sleep */
1562 call_all(dev, tuner, standby);
1563
1564 /* do this before setting alternate! */
1565 if (dev->USE_ISO)
1566 cx231xx_uninit_isoc(dev);
1567 else
1568 cx231xx_uninit_bulk(dev);
1569 cx231xx_set_mode(dev, CX231XX_SUSPEND);
1570 }
1571
1572 /*
1573 * To workaround error number=-71 on EP0 for VideoGrabber,
1574 * need exclude following.
1575 * FIXME: It is probably safe to remove most of these, as we're
1576 * now avoiding the alternate setting for INDEX_VANC
1577 */
1578 if (!dev->board.no_alt_vanc && vdev->vfl_type == VFL_TYPE_VBI) {
1579 /* do this before setting alternate! */
1580 cx231xx_uninit_vbi_isoc(dev);
1581
1582 /* set alternate 0 */
1583 if (!dev->vbi_or_sliced_cc_mode)
1584 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1585 else
1586 cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1587
1588 wake_up_interruptible_nr(&dev->open, 1);
1589 return 0;
1590 }
1591
1592 if (dev->users == 0) {
1593 /* set alternate 0 */
1594 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1595 }
1596
1597 wake_up_interruptible(&dev->open);
1598 return 0;
1599 }
1600
1601 static int cx231xx_v4l2_close(struct file *filp)
1602 {
1603 struct cx231xx *dev = video_drvdata(filp);
1604 int rc;
1605
1606 mutex_lock(&dev->lock);
1607 rc = cx231xx_close(filp);
1608 mutex_unlock(&dev->lock);
1609 return rc;
1610 }
1611
1612 static const struct v4l2_file_operations cx231xx_v4l_fops = {
1613 .owner = THIS_MODULE,
1614 .open = cx231xx_v4l2_open,
1615 .release = cx231xx_v4l2_close,
1616 .read = vb2_fop_read,
1617 .poll = vb2_fop_poll,
1618 .mmap = vb2_fop_mmap,
1619 .unlocked_ioctl = video_ioctl2,
1620 };
1621
1622 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1623 .vidioc_querycap = cx231xx_querycap,
1624 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1625 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1626 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1627 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1628 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1629 .vidioc_try_fmt_vbi_cap = vidioc_try_fmt_vbi_cap,
1630 .vidioc_s_fmt_vbi_cap = vidioc_s_fmt_vbi_cap,
1631 .vidioc_g_pixelaspect = vidioc_g_pixelaspect,
1632 .vidioc_g_selection = vidioc_g_selection,
1633 .vidioc_reqbufs = vb2_ioctl_reqbufs,
1634 .vidioc_querybuf = vb2_ioctl_querybuf,
1635 .vidioc_qbuf = vb2_ioctl_qbuf,
1636 .vidioc_dqbuf = vb2_ioctl_dqbuf,
1637 .vidioc_s_std = vidioc_s_std,
1638 .vidioc_g_std = vidioc_g_std,
1639 .vidioc_enum_input = cx231xx_enum_input,
1640 .vidioc_g_input = cx231xx_g_input,
1641 .vidioc_s_input = cx231xx_s_input,
1642 .vidioc_streamon = vb2_ioctl_streamon,
1643 .vidioc_streamoff = vb2_ioctl_streamoff,
1644 .vidioc_g_tuner = cx231xx_g_tuner,
1645 .vidioc_s_tuner = cx231xx_s_tuner,
1646 .vidioc_g_frequency = cx231xx_g_frequency,
1647 .vidioc_s_frequency = cx231xx_s_frequency,
1648 #ifdef CONFIG_VIDEO_ADV_DEBUG
1649 .vidioc_g_chip_info = cx231xx_g_chip_info,
1650 .vidioc_g_register = cx231xx_g_register,
1651 .vidioc_s_register = cx231xx_s_register,
1652 #endif
1653 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1654 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1655 };
1656
1657 static struct video_device cx231xx_vbi_template;
1658
1659 static const struct video_device cx231xx_video_template = {
1660 .fops = &cx231xx_v4l_fops,
1661 .release = video_device_release_empty,
1662 .ioctl_ops = &video_ioctl_ops,
1663 .tvnorms = V4L2_STD_ALL,
1664 };
1665
1666 static const struct v4l2_file_operations radio_fops = {
1667 .owner = THIS_MODULE,
1668 .open = cx231xx_v4l2_open,
1669 .release = cx231xx_v4l2_close,
1670 .poll = v4l2_ctrl_poll,
1671 .unlocked_ioctl = video_ioctl2,
1672 };
1673
1674 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
1675 .vidioc_querycap = cx231xx_querycap,
1676 .vidioc_g_tuner = radio_g_tuner,
1677 .vidioc_s_tuner = radio_s_tuner,
1678 .vidioc_g_frequency = cx231xx_g_frequency,
1679 .vidioc_s_frequency = cx231xx_s_frequency,
1680 #ifdef CONFIG_VIDEO_ADV_DEBUG
1681 .vidioc_g_chip_info = cx231xx_g_chip_info,
1682 .vidioc_g_register = cx231xx_g_register,
1683 .vidioc_s_register = cx231xx_s_register,
1684 #endif
1685 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1686 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1687 };
1688
1689 static struct video_device cx231xx_radio_template = {
1690 .name = "cx231xx-radio",
1691 .fops = &radio_fops,
1692 .ioctl_ops = &radio_ioctl_ops,
1693 };
1694
1695 /******************************** usb interface ******************************/
1696
1697 static void cx231xx_vdev_init(struct cx231xx *dev,
1698 struct video_device *vfd,
1699 const struct video_device *template,
1700 const char *type_name)
1701 {
1702 *vfd = *template;
1703 vfd->v4l2_dev = &dev->v4l2_dev;
1704 vfd->release = video_device_release_empty;
1705 vfd->lock = &dev->lock;
1706
1707 snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
1708
1709 video_set_drvdata(vfd, dev);
1710 if (dev->tuner_type == TUNER_ABSENT) {
1711 v4l2_disable_ioctl(vfd, VIDIOC_G_FREQUENCY);
1712 v4l2_disable_ioctl(vfd, VIDIOC_S_FREQUENCY);
1713 v4l2_disable_ioctl(vfd, VIDIOC_G_TUNER);
1714 v4l2_disable_ioctl(vfd, VIDIOC_S_TUNER);
1715 }
1716 }
1717
1718 int cx231xx_register_analog_devices(struct cx231xx *dev)
1719 {
1720 struct vb2_queue *q;
1721 int ret;
1722
1723 dev_info(dev->dev, "v4l2 driver version %s\n", CX231XX_VERSION);
1724
1725 /* set default norm */
1726 dev->norm = V4L2_STD_PAL;
1727 dev->width = norm_maxw(dev);
1728 dev->height = norm_maxh(dev);
1729 dev->interlaced = 0;
1730
1731 /* Analog specific initialization */
1732 dev->format = &format[0];
1733
1734 /* Set the initial input */
1735 video_mux(dev, dev->video_input);
1736
1737 call_all(dev, video, s_std, dev->norm);
1738
1739 v4l2_ctrl_handler_init(&dev->ctrl_handler, 10);
1740 v4l2_ctrl_handler_init(&dev->radio_ctrl_handler, 5);
1741
1742 if (dev->sd_cx25840) {
1743 v4l2_ctrl_add_handler(&dev->ctrl_handler,
1744 dev->sd_cx25840->ctrl_handler, NULL, true);
1745 v4l2_ctrl_add_handler(&dev->radio_ctrl_handler,
1746 dev->sd_cx25840->ctrl_handler,
1747 v4l2_ctrl_radio_filter, true);
1748 }
1749
1750 if (dev->ctrl_handler.error)
1751 return dev->ctrl_handler.error;
1752 if (dev->radio_ctrl_handler.error)
1753 return dev->radio_ctrl_handler.error;
1754
1755 /* enable vbi capturing */
1756 /* write code here... */
1757
1758 /* allocate and fill video video_device struct */
1759 cx231xx_vdev_init(dev, &dev->vdev, &cx231xx_video_template, "video");
1760 #if defined(CONFIG_MEDIA_CONTROLLER)
1761 dev->video_pad.flags = MEDIA_PAD_FL_SINK;
1762 ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad);
1763 if (ret < 0)
1764 dev_err(dev->dev, "failed to initialize video media entity!\n");
1765 #endif
1766 dev->vdev.ctrl_handler = &dev->ctrl_handler;
1767
1768 q = &dev->vidq;
1769 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1770 q->io_modes = VB2_USERPTR | VB2_MMAP | VB2_DMABUF | VB2_READ;
1771 q->drv_priv = dev;
1772 q->buf_struct_size = sizeof(struct cx231xx_buffer);
1773 q->ops = &cx231xx_video_qops;
1774 q->mem_ops = &vb2_vmalloc_memops;
1775 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1776 q->min_buffers_needed = 1;
1777 q->lock = &dev->lock;
1778 ret = vb2_queue_init(q);
1779 if (ret)
1780 return ret;
1781 dev->vdev.queue = q;
1782 dev->vdev.device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1783 V4L2_CAP_VIDEO_CAPTURE;
1784 if (dev->tuner_type != TUNER_ABSENT)
1785 dev->vdev.device_caps |= V4L2_CAP_TUNER;
1786
1787 /* register v4l2 video video_device */
1788 ret = video_register_device(&dev->vdev, VFL_TYPE_GRABBER,
1789 video_nr[dev->devno]);
1790 if (ret) {
1791 dev_err(dev->dev,
1792 "unable to register video device (error=%i).\n",
1793 ret);
1794 return ret;
1795 }
1796
1797 dev_info(dev->dev, "Registered video device %s [v4l2]\n",
1798 video_device_node_name(&dev->vdev));
1799
1800 /* Initialize VBI template */
1801 cx231xx_vbi_template = cx231xx_video_template;
1802 strscpy(cx231xx_vbi_template.name, "cx231xx-vbi",
1803 sizeof(cx231xx_vbi_template.name));
1804
1805 /* Allocate and fill vbi video_device struct */
1806 cx231xx_vdev_init(dev, &dev->vbi_dev, &cx231xx_vbi_template, "vbi");
1807
1808 #if defined(CONFIG_MEDIA_CONTROLLER)
1809 dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
1810 ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad);
1811 if (ret < 0)
1812 dev_err(dev->dev, "failed to initialize vbi media entity!\n");
1813 #endif
1814 dev->vbi_dev.ctrl_handler = &dev->ctrl_handler;
1815
1816 q = &dev->vbiq;
1817 q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1818 q->io_modes = VB2_USERPTR | VB2_MMAP | VB2_DMABUF | VB2_READ;
1819 q->drv_priv = dev;
1820 q->buf_struct_size = sizeof(struct cx231xx_buffer);
1821 q->ops = &cx231xx_vbi_qops;
1822 q->mem_ops = &vb2_vmalloc_memops;
1823 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1824 q->min_buffers_needed = 1;
1825 q->lock = &dev->lock;
1826 ret = vb2_queue_init(q);
1827 if (ret)
1828 return ret;
1829 dev->vbi_dev.queue = q;
1830 dev->vbi_dev.device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1831 V4L2_CAP_VBI_CAPTURE;
1832 if (dev->tuner_type != TUNER_ABSENT)
1833 dev->vbi_dev.device_caps |= V4L2_CAP_TUNER;
1834
1835 /* register v4l2 vbi video_device */
1836 ret = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI,
1837 vbi_nr[dev->devno]);
1838 if (ret < 0) {
1839 dev_err(dev->dev, "unable to register vbi device\n");
1840 return ret;
1841 }
1842
1843 dev_info(dev->dev, "Registered VBI device %s\n",
1844 video_device_node_name(&dev->vbi_dev));
1845
1846 if (cx231xx_boards[dev->model].radio.type == CX231XX_RADIO) {
1847 cx231xx_vdev_init(dev, &dev->radio_dev,
1848 &cx231xx_radio_template, "radio");
1849 dev->radio_dev.ctrl_handler = &dev->radio_ctrl_handler;
1850 dev->radio_dev.device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
1851 ret = video_register_device(&dev->radio_dev, VFL_TYPE_RADIO,
1852 radio_nr[dev->devno]);
1853 if (ret < 0) {
1854 dev_err(dev->dev,
1855 "can't register radio device\n");
1856 return ret;
1857 }
1858 dev_info(dev->dev, "Registered radio device as %s\n",
1859 video_device_node_name(&dev->radio_dev));
1860 }
1861
1862 return 0;
1863 }
Linux with added FPC-III support