1 /*
2 * Auvitek AU0828 USB Bridge (Analog video support)
3 *
4 * Copyright (C) 2009 Devin Heitmueller <dheitmueller@linuxtv.org>
5 * Copyright (C) 2005-2008 Auvitek International, Ltd.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * As published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
20 * 02110-1301, USA.
21 */
22
23 /* Developer Notes:
24 *
25 * The hardware scaler supported is unimplemented
26 * AC97 audio support is unimplemented (only i2s audio mode)
27 *
28 */
29
30 #include "au0828.h"
31
32 #include <linux/module.h>
33 #include <linux/slab.h>
34 #include <linux/init.h>
35 #include <linux/device.h>
36 #include <media/v4l2-common.h>
37 #include <media/v4l2-ioctl.h>
38 #include <media/v4l2-event.h>
39 #include <media/tuner.h>
40 #include "au0828-reg.h"
41
42 static DEFINE_MUTEX(au0828_sysfs_lock);
43
44 /* ------------------------------------------------------------------
45 Videobuf operations
46 ------------------------------------------------------------------*/
47
48 static unsigned int isoc_debug;
49 module_param(isoc_debug, int, 0644);
50 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
51
52 #define au0828_isocdbg(fmt, arg...) \
53 do {\
54 if (isoc_debug) { \
55 pr_info("au0828 %s :"fmt, \
56 __func__ , ##arg); \
57 } \
58 } while (0)
59
i2c_gate_ctrl(struct au0828_dev * dev,int val)60 static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val)
61 {
62 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
63 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val);
64 }
65
print_err_status(struct au0828_dev * dev,int packet,int status)66 static inline void print_err_status(struct au0828_dev *dev,
67 int packet, int status)
68 {
69 char *errmsg = "Unknown";
70
71 switch (status) {
72 case -ENOENT:
73 errmsg = "unlinked synchronuously";
74 break;
75 case -ECONNRESET:
76 errmsg = "unlinked asynchronuously";
77 break;
78 case -ENOSR:
79 errmsg = "Buffer error (overrun)";
80 break;
81 case -EPIPE:
82 errmsg = "Stalled (device not responding)";
83 break;
84 case -EOVERFLOW:
85 errmsg = "Babble (bad cable?)";
86 break;
87 case -EPROTO:
88 errmsg = "Bit-stuff error (bad cable?)";
89 break;
90 case -EILSEQ:
91 errmsg = "CRC/Timeout (could be anything)";
92 break;
93 case -ETIME:
94 errmsg = "Device does not respond";
95 break;
96 }
97 if (packet < 0) {
98 au0828_isocdbg("URB status %d [%s].\n", status, errmsg);
99 } else {
100 au0828_isocdbg("URB packet %d, status %d [%s].\n",
101 packet, status, errmsg);
102 }
103 }
104
check_dev(struct au0828_dev * dev)105 static int check_dev(struct au0828_dev *dev)
106 {
107 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) {
108 pr_info("v4l2 ioctl: device not present\n");
109 return -ENODEV;
110 }
111
112 if (test_bit(DEV_MISCONFIGURED, &dev->dev_state)) {
113 pr_info("v4l2 ioctl: device is misconfigured; close and open it again\n");
114 return -EIO;
115 }
116 return 0;
117 }
118
119 /*
120 * IRQ callback, called by URB callback
121 */
au0828_irq_callback(struct urb * urb)122 static void au0828_irq_callback(struct urb *urb)
123 {
124 struct au0828_dmaqueue *dma_q = urb->context;
125 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
126 unsigned long flags = 0;
127 int i;
128
129 switch (urb->status) {
130 case 0: /* success */
131 case -ETIMEDOUT: /* NAK */
132 break;
133 case -ECONNRESET: /* kill */
134 case -ENOENT:
135 case -ESHUTDOWN:
136 au0828_isocdbg("au0828_irq_callback called: status kill\n");
137 return;
138 default: /* unknown error */
139 au0828_isocdbg("urb completition error %d.\n", urb->status);
140 break;
141 }
142
143 /* Copy data from URB */
144 spin_lock_irqsave(&dev->slock, flags);
145 dev->isoc_ctl.isoc_copy(dev, urb);
146 spin_unlock_irqrestore(&dev->slock, flags);
147
148 /* Reset urb buffers */
149 for (i = 0; i < urb->number_of_packets; i++) {
150 urb->iso_frame_desc[i].status = 0;
151 urb->iso_frame_desc[i].actual_length = 0;
152 }
153 urb->status = 0;
154
155 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
156 if (urb->status) {
157 au0828_isocdbg("urb resubmit failed (error=%i)\n",
158 urb->status);
159 }
160 dev->stream_state = STREAM_ON;
161 }
162
163 /*
164 * Stop and Deallocate URBs
165 */
au0828_uninit_isoc(struct au0828_dev * dev)166 static void au0828_uninit_isoc(struct au0828_dev *dev)
167 {
168 struct urb *urb;
169 int i;
170
171 au0828_isocdbg("au0828: called au0828_uninit_isoc\n");
172
173 dev->isoc_ctl.nfields = -1;
174 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
175 urb = dev->isoc_ctl.urb[i];
176 if (urb) {
177 if (!irqs_disabled())
178 usb_kill_urb(urb);
179 else
180 usb_unlink_urb(urb);
181
182 if (dev->isoc_ctl.transfer_buffer[i]) {
183 usb_free_coherent(dev->usbdev,
184 urb->transfer_buffer_length,
185 dev->isoc_ctl.transfer_buffer[i],
186 urb->transfer_dma);
187 }
188 usb_free_urb(urb);
189 dev->isoc_ctl.urb[i] = NULL;
190 }
191 dev->isoc_ctl.transfer_buffer[i] = NULL;
192 }
193
194 kfree(dev->isoc_ctl.urb);
195 kfree(dev->isoc_ctl.transfer_buffer);
196
197 dev->isoc_ctl.urb = NULL;
198 dev->isoc_ctl.transfer_buffer = NULL;
199 dev->isoc_ctl.num_bufs = 0;
200
201 dev->stream_state = STREAM_OFF;
202 }
203
204 /*
205 * Allocate URBs and start IRQ
206 */
au0828_init_isoc(struct au0828_dev * dev,int max_packets,int num_bufs,int max_pkt_size,int (* isoc_copy)(struct au0828_dev * dev,struct urb * urb))207 static int au0828_init_isoc(struct au0828_dev *dev, int max_packets,
208 int num_bufs, int max_pkt_size,
209 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb))
210 {
211 struct au0828_dmaqueue *dma_q = &dev->vidq;
212 int i;
213 int sb_size, pipe;
214 struct urb *urb;
215 int j, k;
216 int rc;
217
218 au0828_isocdbg("au0828: called au0828_prepare_isoc\n");
219
220 dev->isoc_ctl.isoc_copy = isoc_copy;
221 dev->isoc_ctl.num_bufs = num_bufs;
222
223 dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL);
224 if (!dev->isoc_ctl.urb) {
225 au0828_isocdbg("cannot alloc memory for usb buffers\n");
226 return -ENOMEM;
227 }
228
229 dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs,
230 GFP_KERNEL);
231 if (!dev->isoc_ctl.transfer_buffer) {
232 au0828_isocdbg("cannot allocate memory for usb transfer\n");
233 kfree(dev->isoc_ctl.urb);
234 return -ENOMEM;
235 }
236
237 dev->isoc_ctl.max_pkt_size = max_pkt_size;
238 dev->isoc_ctl.buf = NULL;
239
240 sb_size = max_packets * dev->isoc_ctl.max_pkt_size;
241
242 /* allocate urbs and transfer buffers */
243 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
244 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
245 if (!urb) {
246 au0828_isocdbg("cannot alloc isoc_ctl.urb %i\n", i);
247 au0828_uninit_isoc(dev);
248 return -ENOMEM;
249 }
250 dev->isoc_ctl.urb[i] = urb;
251
252 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev,
253 sb_size, GFP_KERNEL, &urb->transfer_dma);
254 if (!dev->isoc_ctl.transfer_buffer[i]) {
255 printk("unable to allocate %i bytes for transfer"
256 " buffer %i%s\n",
257 sb_size, i,
258 in_interrupt() ? " while in int" : "");
259 au0828_uninit_isoc(dev);
260 return -ENOMEM;
261 }
262 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
263
264 pipe = usb_rcvisocpipe(dev->usbdev,
265 dev->isoc_in_endpointaddr),
266
267 usb_fill_int_urb(urb, dev->usbdev, pipe,
268 dev->isoc_ctl.transfer_buffer[i], sb_size,
269 au0828_irq_callback, dma_q, 1);
270
271 urb->number_of_packets = max_packets;
272 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
273
274 k = 0;
275 for (j = 0; j < max_packets; j++) {
276 urb->iso_frame_desc[j].offset = k;
277 urb->iso_frame_desc[j].length =
278 dev->isoc_ctl.max_pkt_size;
279 k += dev->isoc_ctl.max_pkt_size;
280 }
281 }
282
283 /* submit urbs and enables IRQ */
284 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
285 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
286 if (rc) {
287 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
288 i, rc);
289 au0828_uninit_isoc(dev);
290 return rc;
291 }
292 }
293
294 return 0;
295 }
296
297 /*
298 * Announces that a buffer were filled and request the next
299 */
buffer_filled(struct au0828_dev * dev,struct au0828_dmaqueue * dma_q,struct au0828_buffer * buf)300 static inline void buffer_filled(struct au0828_dev *dev,
301 struct au0828_dmaqueue *dma_q,
302 struct au0828_buffer *buf)
303 {
304 struct vb2_buffer *vb = &buf->vb;
305 struct vb2_queue *q = vb->vb2_queue;
306
307 /* Advice that buffer was filled */
308 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field);
309
310 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
311 vb->v4l2_buf.sequence = dev->frame_count++;
312 else
313 vb->v4l2_buf.sequence = dev->vbi_frame_count++;
314
315 vb->v4l2_buf.field = V4L2_FIELD_INTERLACED;
316 v4l2_get_timestamp(&vb->v4l2_buf.timestamp);
317 vb2_buffer_done(vb, VB2_BUF_STATE_DONE);
318 }
319
320 /*
321 * Identify the buffer header type and properly handles
322 */
au0828_copy_video(struct au0828_dev * dev,struct au0828_dmaqueue * dma_q,struct au0828_buffer * buf,unsigned char * p,unsigned char * outp,unsigned long len)323 static void au0828_copy_video(struct au0828_dev *dev,
324 struct au0828_dmaqueue *dma_q,
325 struct au0828_buffer *buf,
326 unsigned char *p,
327 unsigned char *outp, unsigned long len)
328 {
329 void *fieldstart, *startwrite, *startread;
330 int linesdone, currlinedone, offset, lencopy, remain;
331 int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */
332
333 if (len == 0)
334 return;
335
336 if (dma_q->pos + len > buf->length)
337 len = buf->length - dma_q->pos;
338
339 startread = p;
340 remain = len;
341
342 /* Interlaces frame */
343 if (buf->top_field)
344 fieldstart = outp;
345 else
346 fieldstart = outp + bytesperline;
347
348 linesdone = dma_q->pos / bytesperline;
349 currlinedone = dma_q->pos % bytesperline;
350 offset = linesdone * bytesperline * 2 + currlinedone;
351 startwrite = fieldstart + offset;
352 lencopy = bytesperline - currlinedone;
353 lencopy = lencopy > remain ? remain : lencopy;
354
355 if ((char *)startwrite + lencopy > (char *)outp + buf->length) {
356 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
357 ((char *)startwrite + lencopy) -
358 ((char *)outp + buf->length));
359 remain = (char *)outp + buf->length - (char *)startwrite;
360 lencopy = remain;
361 }
362 if (lencopy <= 0)
363 return;
364 memcpy(startwrite, startread, lencopy);
365
366 remain -= lencopy;
367
368 while (remain > 0) {
369 startwrite += lencopy + bytesperline;
370 startread += lencopy;
371 if (bytesperline > remain)
372 lencopy = remain;
373 else
374 lencopy = bytesperline;
375
376 if ((char *)startwrite + lencopy > (char *)outp +
377 buf->length) {
378 au0828_isocdbg("Overflow %zi bytes past buf end (2)\n",
379 ((char *)startwrite + lencopy) -
380 ((char *)outp + buf->length));
381 lencopy = remain = (char *)outp + buf->length -
382 (char *)startwrite;
383 }
384 if (lencopy <= 0)
385 break;
386
387 memcpy(startwrite, startread, lencopy);
388
389 remain -= lencopy;
390 }
391
392 if (offset > 1440) {
393 /* We have enough data to check for greenscreen */
394 if (outp[0] < 0x60 && outp[1440] < 0x60)
395 dev->greenscreen_detected = 1;
396 }
397
398 dma_q->pos += len;
399 }
400
401 /*
402 * video-buf generic routine to get the next available buffer
403 */
get_next_buf(struct au0828_dmaqueue * dma_q,struct au0828_buffer ** buf)404 static inline void get_next_buf(struct au0828_dmaqueue *dma_q,
405 struct au0828_buffer **buf)
406 {
407 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
408
409 if (list_empty(&dma_q->active)) {
410 au0828_isocdbg("No active queue to serve\n");
411 dev->isoc_ctl.buf = NULL;
412 *buf = NULL;
413 return;
414 }
415
416 /* Get the next buffer */
417 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
418 /* Cleans up buffer - Useful for testing for frame/URB loss */
419 list_del(&(*buf)->list);
420 dma_q->pos = 0;
421 (*buf)->vb_buf = (*buf)->mem;
422 dev->isoc_ctl.buf = *buf;
423
424 return;
425 }
426
au0828_copy_vbi(struct au0828_dev * dev,struct au0828_dmaqueue * dma_q,struct au0828_buffer * buf,unsigned char * p,unsigned char * outp,unsigned long len)427 static void au0828_copy_vbi(struct au0828_dev *dev,
428 struct au0828_dmaqueue *dma_q,
429 struct au0828_buffer *buf,
430 unsigned char *p,
431 unsigned char *outp, unsigned long len)
432 {
433 unsigned char *startwrite, *startread;
434 int bytesperline;
435 int i, j = 0;
436
437 if (dev == NULL) {
438 au0828_isocdbg("dev is null\n");
439 return;
440 }
441
442 if (dma_q == NULL) {
443 au0828_isocdbg("dma_q is null\n");
444 return;
445 }
446 if (buf == NULL)
447 return;
448 if (p == NULL) {
449 au0828_isocdbg("p is null\n");
450 return;
451 }
452 if (outp == NULL) {
453 au0828_isocdbg("outp is null\n");
454 return;
455 }
456
457 bytesperline = dev->vbi_width;
458
459 if (dma_q->pos + len > buf->length)
460 len = buf->length - dma_q->pos;
461
462 startread = p;
463 startwrite = outp + (dma_q->pos / 2);
464
465 /* Make sure the bottom field populates the second half of the frame */
466 if (buf->top_field == 0)
467 startwrite += bytesperline * dev->vbi_height;
468
469 for (i = 0; i < len; i += 2)
470 startwrite[j++] = startread[i+1];
471
472 dma_q->pos += len;
473 }
474
475
476 /*
477 * video-buf generic routine to get the next available VBI buffer
478 */
vbi_get_next_buf(struct au0828_dmaqueue * dma_q,struct au0828_buffer ** buf)479 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q,
480 struct au0828_buffer **buf)
481 {
482 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq);
483
484 if (list_empty(&dma_q->active)) {
485 au0828_isocdbg("No active queue to serve\n");
486 dev->isoc_ctl.vbi_buf = NULL;
487 *buf = NULL;
488 return;
489 }
490
491 /* Get the next buffer */
492 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
493 /* Cleans up buffer - Useful for testing for frame/URB loss */
494 list_del(&(*buf)->list);
495 dma_q->pos = 0;
496 (*buf)->vb_buf = (*buf)->mem;
497 dev->isoc_ctl.vbi_buf = *buf;
498 return;
499 }
500
501 /*
502 * Controls the isoc copy of each urb packet
503 */
au0828_isoc_copy(struct au0828_dev * dev,struct urb * urb)504 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
505 {
506 struct au0828_buffer *buf;
507 struct au0828_buffer *vbi_buf;
508 struct au0828_dmaqueue *dma_q = urb->context;
509 struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq;
510 unsigned char *outp = NULL;
511 unsigned char *vbioutp = NULL;
512 int i, len = 0, rc = 1;
513 unsigned char *p;
514 unsigned char fbyte;
515 unsigned int vbi_field_size;
516 unsigned int remain, lencopy;
517
518 if (!dev)
519 return 0;
520
521 if (test_bit(DEV_DISCONNECTED, &dev->dev_state) ||
522 test_bit(DEV_MISCONFIGURED, &dev->dev_state))
523 return 0;
524
525 if (urb->status < 0) {
526 print_err_status(dev, -1, urb->status);
527 if (urb->status == -ENOENT)
528 return 0;
529 }
530
531 buf = dev->isoc_ctl.buf;
532 if (buf != NULL)
533 outp = vb2_plane_vaddr(&buf->vb, 0);
534
535 vbi_buf = dev->isoc_ctl.vbi_buf;
536 if (vbi_buf != NULL)
537 vbioutp = vb2_plane_vaddr(&vbi_buf->vb, 0);
538
539 for (i = 0; i < urb->number_of_packets; i++) {
540 int status = urb->iso_frame_desc[i].status;
541
542 if (status < 0) {
543 print_err_status(dev, i, status);
544 if (urb->iso_frame_desc[i].status != -EPROTO)
545 continue;
546 }
547
548 if (urb->iso_frame_desc[i].actual_length <= 0)
549 continue;
550
551 if (urb->iso_frame_desc[i].actual_length >
552 dev->max_pkt_size) {
553 au0828_isocdbg("packet bigger than packet size");
554 continue;
555 }
556
557 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
558 fbyte = p[0];
559 len = urb->iso_frame_desc[i].actual_length - 4;
560 p += 4;
561
562 if (fbyte & 0x80) {
563 len -= 4;
564 p += 4;
565 au0828_isocdbg("Video frame %s\n",
566 (fbyte & 0x40) ? "odd" : "even");
567 if (fbyte & 0x40) {
568 /* VBI */
569 if (vbi_buf != NULL)
570 buffer_filled(dev, vbi_dma_q, vbi_buf);
571 vbi_get_next_buf(vbi_dma_q, &vbi_buf);
572 if (vbi_buf == NULL)
573 vbioutp = NULL;
574 else
575 vbioutp = vb2_plane_vaddr(
576 &vbi_buf->vb, 0);
577
578 /* Video */
579 if (buf != NULL)
580 buffer_filled(dev, dma_q, buf);
581 get_next_buf(dma_q, &buf);
582 if (buf == NULL)
583 outp = NULL;
584 else
585 outp = vb2_plane_vaddr(&buf->vb, 0);
586
587 /* As long as isoc traffic is arriving, keep
588 resetting the timer */
589 if (dev->vid_timeout_running)
590 mod_timer(&dev->vid_timeout,
591 jiffies + (HZ / 10));
592 if (dev->vbi_timeout_running)
593 mod_timer(&dev->vbi_timeout,
594 jiffies + (HZ / 10));
595 }
596
597 if (buf != NULL) {
598 if (fbyte & 0x40)
599 buf->top_field = 1;
600 else
601 buf->top_field = 0;
602 }
603
604 if (vbi_buf != NULL) {
605 if (fbyte & 0x40)
606 vbi_buf->top_field = 1;
607 else
608 vbi_buf->top_field = 0;
609 }
610
611 dev->vbi_read = 0;
612 vbi_dma_q->pos = 0;
613 dma_q->pos = 0;
614 }
615
616 vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
617 if (dev->vbi_read < vbi_field_size) {
618 remain = vbi_field_size - dev->vbi_read;
619 if (len < remain)
620 lencopy = len;
621 else
622 lencopy = remain;
623
624 if (vbi_buf != NULL)
625 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
626 vbioutp, len);
627
628 len -= lencopy;
629 p += lencopy;
630 dev->vbi_read += lencopy;
631 }
632
633 if (dev->vbi_read >= vbi_field_size && buf != NULL)
634 au0828_copy_video(dev, dma_q, buf, p, outp, len);
635 }
636 return rc;
637 }
638
queue_setup(struct vb2_queue * vq,const struct v4l2_format * fmt,unsigned int * nbuffers,unsigned int * nplanes,unsigned int sizes[],void * alloc_ctxs[])639 static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
640 unsigned int *nbuffers, unsigned int *nplanes,
641 unsigned int sizes[], void *alloc_ctxs[])
642 {
643 struct au0828_dev *dev = vb2_get_drv_priv(vq);
644 unsigned long img_size = dev->height * dev->bytesperline;
645 unsigned long size;
646
647 size = fmt ? fmt->fmt.pix.sizeimage : img_size;
648 if (size < img_size)
649 return -EINVAL;
650
651 *nplanes = 1;
652 sizes[0] = size;
653
654 return 0;
655 }
656
657 static int
buffer_prepare(struct vb2_buffer * vb)658 buffer_prepare(struct vb2_buffer *vb)
659 {
660 struct au0828_buffer *buf = container_of(vb, struct au0828_buffer, vb);
661 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
662
663 buf->length = dev->height * dev->bytesperline;
664
665 if (vb2_plane_size(vb, 0) < buf->length) {
666 pr_err("%s data will not fit into plane (%lu < %lu)\n",
667 __func__, vb2_plane_size(vb, 0), buf->length);
668 return -EINVAL;
669 }
670 vb2_set_plane_payload(&buf->vb, 0, buf->length);
671 return 0;
672 }
673
674 static void
buffer_queue(struct vb2_buffer * vb)675 buffer_queue(struct vb2_buffer *vb)
676 {
677 struct au0828_buffer *buf = container_of(vb,
678 struct au0828_buffer,
679 vb);
680 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
681 struct au0828_dmaqueue *vidq = &dev->vidq;
682 unsigned long flags = 0;
683
684 buf->mem = vb2_plane_vaddr(vb, 0);
685 buf->length = vb2_plane_size(vb, 0);
686
687 spin_lock_irqsave(&dev->slock, flags);
688 list_add_tail(&buf->list, &vidq->active);
689 spin_unlock_irqrestore(&dev->slock, flags);
690 }
691
au0828_i2s_init(struct au0828_dev * dev)692 static int au0828_i2s_init(struct au0828_dev *dev)
693 {
694 /* Enable i2s mode */
695 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
696 return 0;
697 }
698
699 /*
700 * Auvitek au0828 analog stream enable
701 */
au0828_analog_stream_enable(struct au0828_dev * d)702 static int au0828_analog_stream_enable(struct au0828_dev *d)
703 {
704 struct usb_interface *iface;
705 int ret, h, w;
706
707 dprintk(1, "au0828_analog_stream_enable called\n");
708
709 iface = usb_ifnum_to_if(d->usbdev, 0);
710 if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) {
711 dprintk(1, "Changing intf#0 to alt 5\n");
712 /* set au0828 interface0 to AS5 here again */
713 ret = usb_set_interface(d->usbdev, 0, 5);
714 if (ret < 0) {
715 pr_info("Au0828 can't set alt setting to 5!\n");
716 return -EBUSY;
717 }
718 }
719
720 h = d->height / 2 + 2;
721 w = d->width * 2;
722
723 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
724 au0828_writereg(d, 0x106, 0x00);
725 /* set x position */
726 au0828_writereg(d, 0x110, 0x00);
727 au0828_writereg(d, 0x111, 0x00);
728 au0828_writereg(d, 0x114, w & 0xff);
729 au0828_writereg(d, 0x115, w >> 8);
730 /* set y position */
731 au0828_writereg(d, 0x112, 0x00);
732 au0828_writereg(d, 0x113, 0x00);
733 au0828_writereg(d, 0x116, h & 0xff);
734 au0828_writereg(d, 0x117, h >> 8);
735 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
736
737 return 0;
738 }
739
au0828_analog_stream_disable(struct au0828_dev * d)740 static int au0828_analog_stream_disable(struct au0828_dev *d)
741 {
742 dprintk(1, "au0828_analog_stream_disable called\n");
743 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
744 return 0;
745 }
746
au0828_analog_stream_reset(struct au0828_dev * dev)747 static void au0828_analog_stream_reset(struct au0828_dev *dev)
748 {
749 dprintk(1, "au0828_analog_stream_reset called\n");
750 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
751 mdelay(30);
752 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
753 }
754
755 /*
756 * Some operations needs to stop current streaming
757 */
au0828_stream_interrupt(struct au0828_dev * dev)758 static int au0828_stream_interrupt(struct au0828_dev *dev)
759 {
760 int ret = 0;
761
762 dev->stream_state = STREAM_INTERRUPT;
763 if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
764 return -ENODEV;
765 else if (ret) {
766 set_bit(DEV_MISCONFIGURED, &dev->dev_state);
767 dprintk(1, "%s device is misconfigured!\n", __func__);
768 return ret;
769 }
770 return 0;
771 }
772
au0828_start_analog_streaming(struct vb2_queue * vq,unsigned int count)773 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
774 {
775 struct au0828_dev *dev = vb2_get_drv_priv(vq);
776 int rc = 0;
777
778 dprintk(1, "au0828_start_analog_streaming called %d\n",
779 dev->streaming_users);
780
781 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
782 dev->frame_count = 0;
783 else
784 dev->vbi_frame_count = 0;
785
786 if (dev->streaming_users == 0) {
787 /* If we were doing ac97 instead of i2s, it would go here...*/
788 au0828_i2s_init(dev);
789 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
790 AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
791 au0828_isoc_copy);
792 if (rc < 0) {
793 pr_info("au0828_init_isoc failed\n");
794 return rc;
795 }
796
797 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
798 v4l2_device_call_all(&dev->v4l2_dev, 0, video,
799 s_stream, 1);
800 dev->vid_timeout_running = 1;
801 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
802 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
803 dev->vbi_timeout_running = 1;
804 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
805 }
806 }
807 dev->streaming_users++;
808 return rc;
809 }
810
au0828_stop_streaming(struct vb2_queue * vq)811 static void au0828_stop_streaming(struct vb2_queue *vq)
812 {
813 struct au0828_dev *dev = vb2_get_drv_priv(vq);
814 struct au0828_dmaqueue *vidq = &dev->vidq;
815 unsigned long flags = 0;
816
817 dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users);
818
819 if (dev->streaming_users-- == 1)
820 au0828_uninit_isoc(dev);
821
822 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
823 dev->vid_timeout_running = 0;
824 del_timer_sync(&dev->vid_timeout);
825
826 spin_lock_irqsave(&dev->slock, flags);
827 if (dev->isoc_ctl.buf != NULL) {
828 vb2_buffer_done(&dev->isoc_ctl.buf->vb, VB2_BUF_STATE_ERROR);
829 dev->isoc_ctl.buf = NULL;
830 }
831 while (!list_empty(&vidq->active)) {
832 struct au0828_buffer *buf;
833
834 buf = list_entry(vidq->active.next, struct au0828_buffer, list);
835 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
836 list_del(&buf->list);
837 }
838 spin_unlock_irqrestore(&dev->slock, flags);
839 }
840
au0828_stop_vbi_streaming(struct vb2_queue * vq)841 void au0828_stop_vbi_streaming(struct vb2_queue *vq)
842 {
843 struct au0828_dev *dev = vb2_get_drv_priv(vq);
844 struct au0828_dmaqueue *vbiq = &dev->vbiq;
845 unsigned long flags = 0;
846
847 dprintk(1, "au0828_stop_vbi_streaming called %d\n",
848 dev->streaming_users);
849
850 if (dev->streaming_users-- == 1)
851 au0828_uninit_isoc(dev);
852
853 spin_lock_irqsave(&dev->slock, flags);
854 if (dev->isoc_ctl.vbi_buf != NULL) {
855 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb,
856 VB2_BUF_STATE_ERROR);
857 dev->isoc_ctl.vbi_buf = NULL;
858 }
859 while (!list_empty(&vbiq->active)) {
860 struct au0828_buffer *buf;
861
862 buf = list_entry(vbiq->active.next, struct au0828_buffer, list);
863 list_del(&buf->list);
864 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
865 }
866 spin_unlock_irqrestore(&dev->slock, flags);
867
868 dev->vbi_timeout_running = 0;
869 del_timer_sync(&dev->vbi_timeout);
870 }
871
872 static struct vb2_ops au0828_video_qops = {
873 .queue_setup = queue_setup,
874 .buf_prepare = buffer_prepare,
875 .buf_queue = buffer_queue,
876 .start_streaming = au0828_start_analog_streaming,
877 .stop_streaming = au0828_stop_streaming,
878 .wait_prepare = vb2_ops_wait_prepare,
879 .wait_finish = vb2_ops_wait_finish,
880 };
881
882 /* ------------------------------------------------------------------
883 V4L2 interface
884 ------------------------------------------------------------------*/
885 /*
886 * au0828_analog_unregister
887 * unregister v4l2 devices
888 */
au0828_analog_unregister(struct au0828_dev * dev)889 void au0828_analog_unregister(struct au0828_dev *dev)
890 {
891 dprintk(1, "au0828_analog_unregister called\n");
892 mutex_lock(&au0828_sysfs_lock);
893 video_unregister_device(&dev->vdev);
894 video_unregister_device(&dev->vbi_dev);
895 mutex_unlock(&au0828_sysfs_lock);
896 }
897
898 /* This function ensures that video frames continue to be delivered even if
899 the ITU-656 input isn't receiving any data (thereby preventing applications
900 such as tvtime from hanging) */
au0828_vid_buffer_timeout(unsigned long data)901 static void au0828_vid_buffer_timeout(unsigned long data)
902 {
903 struct au0828_dev *dev = (struct au0828_dev *) data;
904 struct au0828_dmaqueue *dma_q = &dev->vidq;
905 struct au0828_buffer *buf;
906 unsigned char *vid_data;
907 unsigned long flags = 0;
908
909 spin_lock_irqsave(&dev->slock, flags);
910
911 buf = dev->isoc_ctl.buf;
912 if (buf != NULL) {
913 vid_data = vb2_plane_vaddr(&buf->vb, 0);
914 memset(vid_data, 0x00, buf->length); /* Blank green frame */
915 buffer_filled(dev, dma_q, buf);
916 }
917 get_next_buf(dma_q, &buf);
918
919 if (dev->vid_timeout_running == 1)
920 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
921
922 spin_unlock_irqrestore(&dev->slock, flags);
923 }
924
au0828_vbi_buffer_timeout(unsigned long data)925 static void au0828_vbi_buffer_timeout(unsigned long data)
926 {
927 struct au0828_dev *dev = (struct au0828_dev *) data;
928 struct au0828_dmaqueue *dma_q = &dev->vbiq;
929 struct au0828_buffer *buf;
930 unsigned char *vbi_data;
931 unsigned long flags = 0;
932
933 spin_lock_irqsave(&dev->slock, flags);
934
935 buf = dev->isoc_ctl.vbi_buf;
936 if (buf != NULL) {
937 vbi_data = vb2_plane_vaddr(&buf->vb, 0);
938 memset(vbi_data, 0x00, buf->length);
939 buffer_filled(dev, dma_q, buf);
940 }
941 vbi_get_next_buf(dma_q, &buf);
942
943 if (dev->vbi_timeout_running == 1)
944 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
945 spin_unlock_irqrestore(&dev->slock, flags);
946 }
947
au0828_v4l2_open(struct file * filp)948 static int au0828_v4l2_open(struct file *filp)
949 {
950 struct au0828_dev *dev = video_drvdata(filp);
951 int ret;
952
953 dprintk(1,
954 "%s called std_set %d dev_state %ld stream users %d users %d\n",
955 __func__, dev->std_set_in_tuner_core, dev->dev_state,
956 dev->streaming_users, dev->users);
957
958 if (mutex_lock_interruptible(&dev->lock))
959 return -ERESTARTSYS;
960
961 ret = v4l2_fh_open(filp);
962 if (ret) {
963 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n",
964 __func__, ret);
965 mutex_unlock(&dev->lock);
966 return ret;
967 }
968
969 if (dev->users == 0) {
970 au0828_analog_stream_enable(dev);
971 au0828_analog_stream_reset(dev);
972 dev->stream_state = STREAM_OFF;
973 set_bit(DEV_INITIALIZED, &dev->dev_state);
974 }
975 dev->users++;
976 mutex_unlock(&dev->lock);
977 return ret;
978 }
979
au0828_v4l2_close(struct file * filp)980 static int au0828_v4l2_close(struct file *filp)
981 {
982 int ret;
983 struct au0828_dev *dev = video_drvdata(filp);
984 struct video_device *vdev = video_devdata(filp);
985
986 dprintk(1,
987 "%s called std_set %d dev_state %ld stream users %d users %d\n",
988 __func__, dev->std_set_in_tuner_core, dev->dev_state,
989 dev->streaming_users, dev->users);
990
991 mutex_lock(&dev->lock);
992 if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) {
993 /* Cancel timeout thread in case they didn't call streamoff */
994 dev->vid_timeout_running = 0;
995 del_timer_sync(&dev->vid_timeout);
996 } else if (vdev->vfl_type == VFL_TYPE_VBI &&
997 dev->vbi_timeout_running) {
998 /* Cancel timeout thread in case they didn't call streamoff */
999 dev->vbi_timeout_running = 0;
1000 del_timer_sync(&dev->vbi_timeout);
1001 }
1002
1003 if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
1004 goto end;
1005
1006 if (dev->users == 1) {
1007 /* Save some power by putting tuner to sleep */
1008 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0);
1009 dev->std_set_in_tuner_core = 0;
1010
1011 /* When close the device, set the usb intf0 into alt0 to free
1012 USB bandwidth */
1013 ret = usb_set_interface(dev->usbdev, 0, 0);
1014 if (ret < 0)
1015 pr_info("Au0828 can't set alternate to 0!\n");
1016 }
1017 end:
1018 _vb2_fop_release(filp, NULL);
1019 dev->users--;
1020 mutex_unlock(&dev->lock);
1021 return 0;
1022 }
1023
1024 /* Must be called with dev->lock held */
au0828_init_tuner(struct au0828_dev * dev)1025 static void au0828_init_tuner(struct au0828_dev *dev)
1026 {
1027 struct v4l2_frequency f = {
1028 .frequency = dev->ctrl_freq,
1029 .type = V4L2_TUNER_ANALOG_TV,
1030 };
1031
1032 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1033 dev->std_set_in_tuner_core, dev->dev_state);
1034
1035 if (dev->std_set_in_tuner_core)
1036 return;
1037 dev->std_set_in_tuner_core = 1;
1038 i2c_gate_ctrl(dev, 1);
1039 /* If we've never sent the standard in tuner core, do so now.
1040 We don't do this at device probe because we don't want to
1041 incur the cost of a firmware load */
1042 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std);
1043 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
1044 i2c_gate_ctrl(dev, 0);
1045 }
1046
au0828_set_format(struct au0828_dev * dev,unsigned int cmd,struct v4l2_format * format)1047 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
1048 struct v4l2_format *format)
1049 {
1050 int ret;
1051 int width = format->fmt.pix.width;
1052 int height = format->fmt.pix.height;
1053
1054 /* If they are demanding a format other than the one we support,
1055 bail out (tvtime asks for UYVY and then retries with YUYV) */
1056 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)
1057 return -EINVAL;
1058
1059 /* format->fmt.pix.width only support 720 and height 480 */
1060 if (width != 720)
1061 width = 720;
1062 if (height != 480)
1063 height = 480;
1064
1065 format->fmt.pix.width = width;
1066 format->fmt.pix.height = height;
1067 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1068 format->fmt.pix.bytesperline = width * 2;
1069 format->fmt.pix.sizeimage = width * height * 2;
1070 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1071 format->fmt.pix.field = V4L2_FIELD_INTERLACED;
1072 format->fmt.pix.priv = 0;
1073
1074 if (cmd == VIDIOC_TRY_FMT)
1075 return 0;
1076
1077 /* maybe set new image format, driver current only support 720*480 */
1078 dev->width = width;
1079 dev->height = height;
1080 dev->frame_size = width * height * 2;
1081 dev->field_size = width * height;
1082 dev->bytesperline = width * 2;
1083
1084 if (dev->stream_state == STREAM_ON) {
1085 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
1086 ret = au0828_stream_interrupt(dev);
1087 if (ret != 0) {
1088 dprintk(1, "error interrupting video stream!\n");
1089 return ret;
1090 }
1091 }
1092
1093 au0828_analog_stream_enable(dev);
1094
1095 return 0;
1096 }
1097
vidioc_querycap(struct file * file,void * priv,struct v4l2_capability * cap)1098 static int vidioc_querycap(struct file *file, void *priv,
1099 struct v4l2_capability *cap)
1100 {
1101 struct video_device *vdev = video_devdata(file);
1102 struct au0828_dev *dev = video_drvdata(file);
1103
1104 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1105 dev->std_set_in_tuner_core, dev->dev_state);
1106
1107 strlcpy(cap->driver, "au0828", sizeof(cap->driver));
1108 strlcpy(cap->card, dev->board.name, sizeof(cap->card));
1109 usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info));
1110
1111 /* set the device capabilities */
1112 cap->device_caps = V4L2_CAP_AUDIO |
1113 V4L2_CAP_READWRITE |
1114 V4L2_CAP_STREAMING |
1115 V4L2_CAP_TUNER;
1116 if (vdev->vfl_type == VFL_TYPE_GRABBER)
1117 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
1118 else
1119 cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
1120 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS |
1121 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE;
1122 return 0;
1123 }
1124
vidioc_enum_fmt_vid_cap(struct file * file,void * priv,struct v4l2_fmtdesc * f)1125 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1126 struct v4l2_fmtdesc *f)
1127 {
1128 if (f->index)
1129 return -EINVAL;
1130
1131 dprintk(1, "%s called\n", __func__);
1132
1133 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1134 strcpy(f->description, "Packed YUV2");
1135
1136 f->flags = 0;
1137 f->pixelformat = V4L2_PIX_FMT_UYVY;
1138
1139 return 0;
1140 }
1141
vidioc_g_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)1142 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1143 struct v4l2_format *f)
1144 {
1145 struct au0828_dev *dev = video_drvdata(file);
1146
1147 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1148 dev->std_set_in_tuner_core, dev->dev_state);
1149
1150 f->fmt.pix.width = dev->width;
1151 f->fmt.pix.height = dev->height;
1152 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1153 f->fmt.pix.bytesperline = dev->bytesperline;
1154 f->fmt.pix.sizeimage = dev->frame_size;
1155 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
1156 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1157 f->fmt.pix.priv = 0;
1158 return 0;
1159 }
1160
vidioc_try_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)1161 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1162 struct v4l2_format *f)
1163 {
1164 struct au0828_dev *dev = video_drvdata(file);
1165
1166 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1167 dev->std_set_in_tuner_core, dev->dev_state);
1168
1169 return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
1170 }
1171
vidioc_s_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)1172 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1173 struct v4l2_format *f)
1174 {
1175 struct au0828_dev *dev = video_drvdata(file);
1176 int rc;
1177
1178 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1179 dev->std_set_in_tuner_core, dev->dev_state);
1180
1181 rc = check_dev(dev);
1182 if (rc < 0)
1183 return rc;
1184
1185 if (vb2_is_busy(&dev->vb_vidq)) {
1186 pr_info("%s queue busy\n", __func__);
1187 rc = -EBUSY;
1188 goto out;
1189 }
1190
1191 rc = au0828_set_format(dev, VIDIOC_S_FMT, f);
1192 out:
1193 return rc;
1194 }
1195
vidioc_s_std(struct file * file,void * priv,v4l2_std_id norm)1196 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
1197 {
1198 struct au0828_dev *dev = video_drvdata(file);
1199
1200 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1201 dev->std_set_in_tuner_core, dev->dev_state);
1202
1203 if (norm == dev->std)
1204 return 0;
1205
1206 if (dev->streaming_users > 0)
1207 return -EBUSY;
1208
1209 dev->std = norm;
1210
1211 au0828_init_tuner(dev);
1212
1213 i2c_gate_ctrl(dev, 1);
1214
1215 /*
1216 * FIXME: when we support something other than 60Hz standards,
1217 * we are going to have to make the au0828 bridge adjust the size
1218 * of its capture buffer, which is currently hardcoded at 720x480
1219 */
1220
1221 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm);
1222
1223 i2c_gate_ctrl(dev, 0);
1224
1225 return 0;
1226 }
1227
vidioc_g_std(struct file * file,void * priv,v4l2_std_id * norm)1228 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
1229 {
1230 struct au0828_dev *dev = video_drvdata(file);
1231
1232 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1233 dev->std_set_in_tuner_core, dev->dev_state);
1234
1235 *norm = dev->std;
1236 return 0;
1237 }
1238
vidioc_enum_input(struct file * file,void * priv,struct v4l2_input * input)1239 static int vidioc_enum_input(struct file *file, void *priv,
1240 struct v4l2_input *input)
1241 {
1242 struct au0828_dev *dev = video_drvdata(file);
1243 unsigned int tmp;
1244
1245 static const char *inames[] = {
1246 [AU0828_VMUX_UNDEFINED] = "Undefined",
1247 [AU0828_VMUX_COMPOSITE] = "Composite",
1248 [AU0828_VMUX_SVIDEO] = "S-Video",
1249 [AU0828_VMUX_CABLE] = "Cable TV",
1250 [AU0828_VMUX_TELEVISION] = "Television",
1251 [AU0828_VMUX_DVB] = "DVB",
1252 [AU0828_VMUX_DEBUG] = "tv debug"
1253 };
1254
1255 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1256 dev->std_set_in_tuner_core, dev->dev_state);
1257
1258 tmp = input->index;
1259
1260 if (tmp >= AU0828_MAX_INPUT)
1261 return -EINVAL;
1262 if (AUVI_INPUT(tmp).type == 0)
1263 return -EINVAL;
1264
1265 input->index = tmp;
1266 strcpy(input->name, inames[AUVI_INPUT(tmp).type]);
1267 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
1268 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) {
1269 input->type |= V4L2_INPUT_TYPE_TUNER;
1270 input->audioset = 1;
1271 } else {
1272 input->type |= V4L2_INPUT_TYPE_CAMERA;
1273 input->audioset = 2;
1274 }
1275
1276 input->std = dev->vdev.tvnorms;
1277
1278 return 0;
1279 }
1280
vidioc_g_input(struct file * file,void * priv,unsigned int * i)1281 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1282 {
1283 struct au0828_dev *dev = video_drvdata(file);
1284
1285 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1286 dev->std_set_in_tuner_core, dev->dev_state);
1287
1288 *i = dev->ctrl_input;
1289 return 0;
1290 }
1291
au0828_s_input(struct au0828_dev * dev,int index)1292 static void au0828_s_input(struct au0828_dev *dev, int index)
1293 {
1294 int i;
1295
1296 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1297 dev->std_set_in_tuner_core, dev->dev_state);
1298
1299 switch (AUVI_INPUT(index).type) {
1300 case AU0828_VMUX_SVIDEO:
1301 dev->input_type = AU0828_VMUX_SVIDEO;
1302 dev->ctrl_ainput = 1;
1303 break;
1304 case AU0828_VMUX_COMPOSITE:
1305 dev->input_type = AU0828_VMUX_COMPOSITE;
1306 dev->ctrl_ainput = 1;
1307 break;
1308 case AU0828_VMUX_TELEVISION:
1309 dev->input_type = AU0828_VMUX_TELEVISION;
1310 dev->ctrl_ainput = 0;
1311 break;
1312 default:
1313 dprintk(1, "unknown input type set [%d]\n",
1314 AUVI_INPUT(index).type);
1315 break;
1316 }
1317
1318 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
1319 AUVI_INPUT(index).vmux, 0, 0);
1320
1321 for (i = 0; i < AU0828_MAX_INPUT; i++) {
1322 int enable = 0;
1323 if (AUVI_INPUT(i).audio_setup == NULL)
1324 continue;
1325
1326 if (i == index)
1327 enable = 1;
1328 else
1329 enable = 0;
1330 if (enable) {
1331 (AUVI_INPUT(i).audio_setup)(dev, enable);
1332 } else {
1333 /* Make sure we leave it turned on if some
1334 other input is routed to this callback */
1335 if ((AUVI_INPUT(i).audio_setup) !=
1336 ((AUVI_INPUT(index).audio_setup))) {
1337 (AUVI_INPUT(i).audio_setup)(dev, enable);
1338 }
1339 }
1340 }
1341
1342 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
1343 AUVI_INPUT(index).amux, 0, 0);
1344 }
1345
vidioc_s_input(struct file * file,void * priv,unsigned int index)1346 static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
1347 {
1348 struct au0828_dev *dev = video_drvdata(file);
1349
1350 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
1351 index);
1352 if (index >= AU0828_MAX_INPUT)
1353 return -EINVAL;
1354 if (AUVI_INPUT(index).type == 0)
1355 return -EINVAL;
1356 dev->ctrl_input = index;
1357 au0828_s_input(dev, index);
1358 return 0;
1359 }
1360
vidioc_enumaudio(struct file * file,void * priv,struct v4l2_audio * a)1361 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a)
1362 {
1363 if (a->index > 1)
1364 return -EINVAL;
1365
1366 dprintk(1, "%s called\n", __func__);
1367
1368 if (a->index == 0)
1369 strcpy(a->name, "Television");
1370 else
1371 strcpy(a->name, "Line in");
1372
1373 a->capability = V4L2_AUDCAP_STEREO;
1374 return 0;
1375 }
1376
vidioc_g_audio(struct file * file,void * priv,struct v4l2_audio * a)1377 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1378 {
1379 struct au0828_dev *dev = video_drvdata(file);
1380
1381 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1382 dev->std_set_in_tuner_core, dev->dev_state);
1383
1384 a->index = dev->ctrl_ainput;
1385 if (a->index == 0)
1386 strcpy(a->name, "Television");
1387 else
1388 strcpy(a->name, "Line in");
1389
1390 a->capability = V4L2_AUDCAP_STEREO;
1391 return 0;
1392 }
1393
vidioc_s_audio(struct file * file,void * priv,const struct v4l2_audio * a)1394 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)
1395 {
1396 struct au0828_dev *dev = video_drvdata(file);
1397
1398 if (a->index != dev->ctrl_ainput)
1399 return -EINVAL;
1400
1401 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1402 dev->std_set_in_tuner_core, dev->dev_state);
1403 return 0;
1404 }
1405
vidioc_g_tuner(struct file * file,void * priv,struct v4l2_tuner * t)1406 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1407 {
1408 struct au0828_dev *dev = video_drvdata(file);
1409
1410 if (t->index != 0)
1411 return -EINVAL;
1412
1413 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1414 dev->std_set_in_tuner_core, dev->dev_state);
1415
1416 strcpy(t->name, "Auvitek tuner");
1417
1418 au0828_init_tuner(dev);
1419 i2c_gate_ctrl(dev, 1);
1420 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1421 i2c_gate_ctrl(dev, 0);
1422 return 0;
1423 }
1424
vidioc_s_tuner(struct file * file,void * priv,const struct v4l2_tuner * t)1425 static int vidioc_s_tuner(struct file *file, void *priv,
1426 const struct v4l2_tuner *t)
1427 {
1428 struct au0828_dev *dev = video_drvdata(file);
1429
1430 if (t->index != 0)
1431 return -EINVAL;
1432
1433 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1434 dev->std_set_in_tuner_core, dev->dev_state);
1435
1436 au0828_init_tuner(dev);
1437 i2c_gate_ctrl(dev, 1);
1438 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1439 i2c_gate_ctrl(dev, 0);
1440
1441 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
1442 t->afc);
1443
1444 return 0;
1445
1446 }
1447
vidioc_g_frequency(struct file * file,void * priv,struct v4l2_frequency * freq)1448 static int vidioc_g_frequency(struct file *file, void *priv,
1449 struct v4l2_frequency *freq)
1450 {
1451 struct au0828_dev *dev = video_drvdata(file);
1452
1453 if (freq->tuner != 0)
1454 return -EINVAL;
1455 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1456 dev->std_set_in_tuner_core, dev->dev_state);
1457 freq->frequency = dev->ctrl_freq;
1458 return 0;
1459 }
1460
vidioc_s_frequency(struct file * file,void * priv,const struct v4l2_frequency * freq)1461 static int vidioc_s_frequency(struct file *file, void *priv,
1462 const struct v4l2_frequency *freq)
1463 {
1464 struct au0828_dev *dev = video_drvdata(file);
1465 struct v4l2_frequency new_freq = *freq;
1466
1467 if (freq->tuner != 0)
1468 return -EINVAL;
1469
1470 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1471 dev->std_set_in_tuner_core, dev->dev_state);
1472
1473 au0828_init_tuner(dev);
1474 i2c_gate_ctrl(dev, 1);
1475
1476 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
1477 /* Get the actual set (and possibly clamped) frequency */
1478 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
1479 dev->ctrl_freq = new_freq.frequency;
1480
1481 i2c_gate_ctrl(dev, 0);
1482
1483 au0828_analog_stream_reset(dev);
1484
1485 return 0;
1486 }
1487
1488
1489 /* RAW VBI ioctls */
1490
vidioc_g_fmt_vbi_cap(struct file * file,void * priv,struct v4l2_format * format)1491 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1492 struct v4l2_format *format)
1493 {
1494 struct au0828_dev *dev = video_drvdata(file);
1495
1496 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1497 dev->std_set_in_tuner_core, dev->dev_state);
1498
1499 format->fmt.vbi.samples_per_line = dev->vbi_width;
1500 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1501 format->fmt.vbi.offset = 0;
1502 format->fmt.vbi.flags = 0;
1503 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
1504
1505 format->fmt.vbi.count[0] = dev->vbi_height;
1506 format->fmt.vbi.count[1] = dev->vbi_height;
1507 format->fmt.vbi.start[0] = 21;
1508 format->fmt.vbi.start[1] = 284;
1509 memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
1510
1511 return 0;
1512 }
1513
vidioc_cropcap(struct file * file,void * priv,struct v4l2_cropcap * cc)1514 static int vidioc_cropcap(struct file *file, void *priv,
1515 struct v4l2_cropcap *cc)
1516 {
1517 struct au0828_dev *dev = video_drvdata(file);
1518
1519 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1520 return -EINVAL;
1521
1522 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1523 dev->std_set_in_tuner_core, dev->dev_state);
1524
1525 cc->bounds.left = 0;
1526 cc->bounds.top = 0;
1527 cc->bounds.width = dev->width;
1528 cc->bounds.height = dev->height;
1529
1530 cc->defrect = cc->bounds;
1531
1532 cc->pixelaspect.numerator = 54;
1533 cc->pixelaspect.denominator = 59;
1534
1535 return 0;
1536 }
1537
1538 #ifdef CONFIG_VIDEO_ADV_DEBUG
vidioc_g_register(struct file * file,void * priv,struct v4l2_dbg_register * reg)1539 static int vidioc_g_register(struct file *file, void *priv,
1540 struct v4l2_dbg_register *reg)
1541 {
1542 struct au0828_dev *dev = video_drvdata(file);
1543
1544 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1545 dev->std_set_in_tuner_core, dev->dev_state);
1546
1547 reg->val = au0828_read(dev, reg->reg);
1548 reg->size = 1;
1549 return 0;
1550 }
1551
vidioc_s_register(struct file * file,void * priv,const struct v4l2_dbg_register * reg)1552 static int vidioc_s_register(struct file *file, void *priv,
1553 const struct v4l2_dbg_register *reg)
1554 {
1555 struct au0828_dev *dev = video_drvdata(file);
1556
1557 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1558 dev->std_set_in_tuner_core, dev->dev_state);
1559
1560 return au0828_writereg(dev, reg->reg, reg->val);
1561 }
1562 #endif
1563
vidioc_log_status(struct file * file,void * fh)1564 static int vidioc_log_status(struct file *file, void *fh)
1565 {
1566 struct video_device *vdev = video_devdata(file);
1567
1568 dprintk(1, "%s called\n", __func__);
1569
1570 v4l2_ctrl_log_status(file, fh);
1571 v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status);
1572 return 0;
1573 }
1574
au0828_v4l2_suspend(struct au0828_dev * dev)1575 void au0828_v4l2_suspend(struct au0828_dev *dev)
1576 {
1577 struct urb *urb;
1578 int i;
1579
1580 pr_info("stopping V4L2\n");
1581
1582 if (dev->stream_state == STREAM_ON) {
1583 pr_info("stopping V4L2 active URBs\n");
1584 au0828_analog_stream_disable(dev);
1585 /* stop urbs */
1586 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1587 urb = dev->isoc_ctl.urb[i];
1588 if (urb) {
1589 if (!irqs_disabled())
1590 usb_kill_urb(urb);
1591 else
1592 usb_unlink_urb(urb);
1593 }
1594 }
1595 }
1596
1597 if (dev->vid_timeout_running)
1598 del_timer_sync(&dev->vid_timeout);
1599 if (dev->vbi_timeout_running)
1600 del_timer_sync(&dev->vbi_timeout);
1601 }
1602
au0828_v4l2_resume(struct au0828_dev * dev)1603 void au0828_v4l2_resume(struct au0828_dev *dev)
1604 {
1605 int i, rc;
1606
1607 pr_info("restarting V4L2\n");
1608
1609 if (dev->stream_state == STREAM_ON) {
1610 au0828_stream_interrupt(dev);
1611 au0828_init_tuner(dev);
1612 }
1613
1614 if (dev->vid_timeout_running)
1615 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
1616 if (dev->vbi_timeout_running)
1617 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1618
1619 /* If we were doing ac97 instead of i2s, it would go here...*/
1620 au0828_i2s_init(dev);
1621
1622 au0828_analog_stream_enable(dev);
1623
1624 if (!(dev->stream_state == STREAM_ON)) {
1625 au0828_analog_stream_reset(dev);
1626 /* submit urbs */
1627 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1628 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
1629 if (rc) {
1630 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
1631 i, rc);
1632 au0828_uninit_isoc(dev);
1633 }
1634 }
1635 }
1636 }
1637
1638 static struct v4l2_file_operations au0828_v4l_fops = {
1639 .owner = THIS_MODULE,
1640 .open = au0828_v4l2_open,
1641 .release = au0828_v4l2_close,
1642 .read = vb2_fop_read,
1643 .poll = vb2_fop_poll,
1644 .mmap = vb2_fop_mmap,
1645 .unlocked_ioctl = video_ioctl2,
1646 };
1647
1648 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1649 .vidioc_querycap = vidioc_querycap,
1650 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1651 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1652 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1653 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1654 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1655 .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1656 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1657 .vidioc_enumaudio = vidioc_enumaudio,
1658 .vidioc_g_audio = vidioc_g_audio,
1659 .vidioc_s_audio = vidioc_s_audio,
1660 .vidioc_cropcap = vidioc_cropcap,
1661
1662 .vidioc_reqbufs = vb2_ioctl_reqbufs,
1663 .vidioc_create_bufs = vb2_ioctl_create_bufs,
1664 .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
1665 .vidioc_querybuf = vb2_ioctl_querybuf,
1666 .vidioc_qbuf = vb2_ioctl_qbuf,
1667 .vidioc_dqbuf = vb2_ioctl_dqbuf,
1668 .vidioc_expbuf = vb2_ioctl_expbuf,
1669
1670 .vidioc_s_std = vidioc_s_std,
1671 .vidioc_g_std = vidioc_g_std,
1672 .vidioc_enum_input = vidioc_enum_input,
1673 .vidioc_g_input = vidioc_g_input,
1674 .vidioc_s_input = vidioc_s_input,
1675
1676 .vidioc_streamon = vb2_ioctl_streamon,
1677 .vidioc_streamoff = vb2_ioctl_streamoff,
1678
1679 .vidioc_g_tuner = vidioc_g_tuner,
1680 .vidioc_s_tuner = vidioc_s_tuner,
1681 .vidioc_g_frequency = vidioc_g_frequency,
1682 .vidioc_s_frequency = vidioc_s_frequency,
1683 #ifdef CONFIG_VIDEO_ADV_DEBUG
1684 .vidioc_g_register = vidioc_g_register,
1685 .vidioc_s_register = vidioc_s_register,
1686 #endif
1687 .vidioc_log_status = vidioc_log_status,
1688 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1689 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1690 };
1691
1692 static const struct video_device au0828_video_template = {
1693 .fops = &au0828_v4l_fops,
1694 .release = video_device_release_empty,
1695 .ioctl_ops = &video_ioctl_ops,
1696 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M,
1697 };
1698
au0828_vb2_setup(struct au0828_dev * dev)1699 static int au0828_vb2_setup(struct au0828_dev *dev)
1700 {
1701 int rc;
1702 struct vb2_queue *q;
1703
1704 /* Setup Videobuf2 for Video capture */
1705 q = &dev->vb_vidq;
1706 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1707 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1708 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1709 q->drv_priv = dev;
1710 q->buf_struct_size = sizeof(struct au0828_buffer);
1711 q->ops = &au0828_video_qops;
1712 q->mem_ops = &vb2_vmalloc_memops;
1713
1714 rc = vb2_queue_init(q);
1715 if (rc < 0)
1716 return rc;
1717
1718 /* Setup Videobuf2 for VBI capture */
1719 q = &dev->vb_vbiq;
1720 q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1721 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1722 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1723 q->drv_priv = dev;
1724 q->buf_struct_size = sizeof(struct au0828_buffer);
1725 q->ops = &au0828_vbi_qops;
1726 q->mem_ops = &vb2_vmalloc_memops;
1727
1728 rc = vb2_queue_init(q);
1729 if (rc < 0)
1730 return rc;
1731
1732 return 0;
1733 }
1734
1735 /**************************************************************************/
1736
au0828_analog_register(struct au0828_dev * dev,struct usb_interface * interface)1737 int au0828_analog_register(struct au0828_dev *dev,
1738 struct usb_interface *interface)
1739 {
1740 int retval = -ENOMEM;
1741 struct usb_host_interface *iface_desc;
1742 struct usb_endpoint_descriptor *endpoint;
1743 int i, ret;
1744
1745 dprintk(1, "au0828_analog_register called for intf#%d!\n",
1746 interface->cur_altsetting->desc.bInterfaceNumber);
1747
1748 /* set au0828 usb interface0 to as5 */
1749 retval = usb_set_interface(dev->usbdev,
1750 interface->cur_altsetting->desc.bInterfaceNumber, 5);
1751 if (retval != 0) {
1752 pr_info("Failure setting usb interface0 to as5\n");
1753 return retval;
1754 }
1755
1756 /* Figure out which endpoint has the isoc interface */
1757 iface_desc = interface->cur_altsetting;
1758 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
1759 endpoint = &iface_desc->endpoint[i].desc;
1760 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1761 == USB_DIR_IN) &&
1762 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1763 == USB_ENDPOINT_XFER_ISOC)) {
1764
1765 /* we find our isoc in endpoint */
1766 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
1767 dev->max_pkt_size = (tmp & 0x07ff) *
1768 (((tmp & 0x1800) >> 11) + 1);
1769 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
1770 dprintk(1,
1771 "Found isoc endpoint 0x%02x, max size = %d\n",
1772 dev->isoc_in_endpointaddr, dev->max_pkt_size);
1773 }
1774 }
1775 if (!(dev->isoc_in_endpointaddr)) {
1776 pr_info("Could not locate isoc endpoint\n");
1777 return -ENODEV;
1778 }
1779
1780 init_waitqueue_head(&dev->open);
1781 spin_lock_init(&dev->slock);
1782
1783 /* init video dma queues */
1784 INIT_LIST_HEAD(&dev->vidq.active);
1785 INIT_LIST_HEAD(&dev->vbiq.active);
1786
1787 setup_timer(&dev->vid_timeout, au0828_vid_buffer_timeout,
1788 (unsigned long)dev);
1789 setup_timer(&dev->vbi_timeout, au0828_vbi_buffer_timeout,
1790 (unsigned long)dev);
1791
1792 dev->width = NTSC_STD_W;
1793 dev->height = NTSC_STD_H;
1794 dev->field_size = dev->width * dev->height;
1795 dev->frame_size = dev->field_size << 1;
1796 dev->bytesperline = dev->width << 1;
1797 dev->vbi_width = 720;
1798 dev->vbi_height = 1;
1799 dev->ctrl_ainput = 0;
1800 dev->ctrl_freq = 960;
1801 dev->std = V4L2_STD_NTSC_M;
1802 au0828_s_input(dev, 0);
1803
1804 mutex_init(&dev->vb_queue_lock);
1805 mutex_init(&dev->vb_vbi_queue_lock);
1806
1807 /* Fill the video capture device struct */
1808 dev->vdev = au0828_video_template;
1809 dev->vdev.v4l2_dev = &dev->v4l2_dev;
1810 dev->vdev.lock = &dev->lock;
1811 dev->vdev.queue = &dev->vb_vidq;
1812 dev->vdev.queue->lock = &dev->vb_queue_lock;
1813 strcpy(dev->vdev.name, "au0828a video");
1814
1815 /* Setup the VBI device */
1816 dev->vbi_dev = au0828_video_template;
1817 dev->vbi_dev.v4l2_dev = &dev->v4l2_dev;
1818 dev->vbi_dev.lock = &dev->lock;
1819 dev->vbi_dev.queue = &dev->vb_vbiq;
1820 dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock;
1821 strcpy(dev->vbi_dev.name, "au0828a vbi");
1822
1823 /* initialize videobuf2 stuff */
1824 retval = au0828_vb2_setup(dev);
1825 if (retval != 0) {
1826 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n",
1827 retval);
1828 return -ENODEV;
1829 }
1830
1831 /* Register the v4l2 device */
1832 video_set_drvdata(&dev->vdev, dev);
1833 retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1);
1834 if (retval != 0) {
1835 dprintk(1, "unable to register video device (error = %d).\n",
1836 retval);
1837 ret = -ENODEV;
1838 goto err_reg_vdev;
1839 }
1840
1841 /* Register the vbi device */
1842 video_set_drvdata(&dev->vbi_dev, dev);
1843 retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1);
1844 if (retval != 0) {
1845 dprintk(1, "unable to register vbi device (error = %d).\n",
1846 retval);
1847 ret = -ENODEV;
1848 goto err_reg_vbi_dev;
1849 }
1850
1851 dprintk(1, "%s completed!\n", __func__);
1852
1853 return 0;
1854
1855 err_reg_vbi_dev:
1856 video_unregister_device(&dev->vdev);
1857 err_reg_vdev:
1858 vb2_queue_release(&dev->vb_vidq);
1859 vb2_queue_release(&dev->vb_vbiq);
1860 return ret;
1861 }
1862
1863