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[mirror_ubuntu-artful-kernel.git] / drivers / media / usb / au0828 / au0828-video.c
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 #include "au8522.h"
32
33 #include <linux/module.h>
34 #include <linux/slab.h>
35 #include <linux/init.h>
36 #include <linux/device.h>
37 #include <media/v4l2-common.h>
38 #include <media/v4l2-mc.h>
39 #include <media/v4l2-ioctl.h>
40 #include <media/v4l2-event.h>
41 #include <media/tuner.h>
42 #include "au0828-reg.h"
43
44 static DEFINE_MUTEX(au0828_sysfs_lock);
45
46 /* ------------------------------------------------------------------
47 Videobuf operations
48 ------------------------------------------------------------------*/
49
50 static unsigned int isoc_debug;
51 module_param(isoc_debug, int, 0644);
52 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
53
54 #define au0828_isocdbg(fmt, arg...) \
55 do {\
56 if (isoc_debug) { \
57 pr_info("au0828 %s :"fmt, \
58 __func__ , ##arg); \
59 } \
60 } while (0)
61
62 static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val)
63 {
64 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
65 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val);
66 }
67
68 static inline void print_err_status(struct au0828_dev *dev,
69 int packet, int status)
70 {
71 char *errmsg = "Unknown";
72
73 switch (status) {
74 case -ENOENT:
75 errmsg = "unlinked synchronuously";
76 break;
77 case -ECONNRESET:
78 errmsg = "unlinked asynchronuously";
79 break;
80 case -ENOSR:
81 errmsg = "Buffer error (overrun)";
82 break;
83 case -EPIPE:
84 errmsg = "Stalled (device not responding)";
85 break;
86 case -EOVERFLOW:
87 errmsg = "Babble (bad cable?)";
88 break;
89 case -EPROTO:
90 errmsg = "Bit-stuff error (bad cable?)";
91 break;
92 case -EILSEQ:
93 errmsg = "CRC/Timeout (could be anything)";
94 break;
95 case -ETIME:
96 errmsg = "Device does not respond";
97 break;
98 }
99 if (packet < 0) {
100 au0828_isocdbg("URB status %d [%s].\n", status, errmsg);
101 } else {
102 au0828_isocdbg("URB packet %d, status %d [%s].\n",
103 packet, status, errmsg);
104 }
105 }
106
107 static int check_dev(struct au0828_dev *dev)
108 {
109 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) {
110 pr_info("v4l2 ioctl: device not present\n");
111 return -ENODEV;
112 }
113
114 if (test_bit(DEV_MISCONFIGURED, &dev->dev_state)) {
115 pr_info("v4l2 ioctl: device is misconfigured; close and open it again\n");
116 return -EIO;
117 }
118 return 0;
119 }
120
121 /*
122 * IRQ callback, called by URB callback
123 */
124 static void au0828_irq_callback(struct urb *urb)
125 {
126 struct au0828_dmaqueue *dma_q = urb->context;
127 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
128 unsigned long flags = 0;
129 int i;
130
131 switch (urb->status) {
132 case 0: /* success */
133 case -ETIMEDOUT: /* NAK */
134 break;
135 case -ECONNRESET: /* kill */
136 case -ENOENT:
137 case -ESHUTDOWN:
138 au0828_isocdbg("au0828_irq_callback called: status kill\n");
139 return;
140 default: /* unknown error */
141 au0828_isocdbg("urb completition error %d.\n", urb->status);
142 break;
143 }
144
145 /* Copy data from URB */
146 spin_lock_irqsave(&dev->slock, flags);
147 dev->isoc_ctl.isoc_copy(dev, urb);
148 spin_unlock_irqrestore(&dev->slock, flags);
149
150 /* Reset urb buffers */
151 for (i = 0; i < urb->number_of_packets; i++) {
152 urb->iso_frame_desc[i].status = 0;
153 urb->iso_frame_desc[i].actual_length = 0;
154 }
155 urb->status = 0;
156
157 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
158 if (urb->status) {
159 au0828_isocdbg("urb resubmit failed (error=%i)\n",
160 urb->status);
161 }
162 dev->stream_state = STREAM_ON;
163 }
164
165 /*
166 * Stop and Deallocate URBs
167 */
168 static void au0828_uninit_isoc(struct au0828_dev *dev)
169 {
170 struct urb *urb;
171 int i;
172
173 au0828_isocdbg("au0828: called au0828_uninit_isoc\n");
174
175 dev->isoc_ctl.nfields = -1;
176 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
177 urb = dev->isoc_ctl.urb[i];
178 if (urb) {
179 if (!irqs_disabled())
180 usb_kill_urb(urb);
181 else
182 usb_unlink_urb(urb);
183
184 if (dev->isoc_ctl.transfer_buffer[i]) {
185 usb_free_coherent(dev->usbdev,
186 urb->transfer_buffer_length,
187 dev->isoc_ctl.transfer_buffer[i],
188 urb->transfer_dma);
189 }
190 usb_free_urb(urb);
191 dev->isoc_ctl.urb[i] = NULL;
192 }
193 dev->isoc_ctl.transfer_buffer[i] = NULL;
194 }
195
196 kfree(dev->isoc_ctl.urb);
197 kfree(dev->isoc_ctl.transfer_buffer);
198
199 dev->isoc_ctl.urb = NULL;
200 dev->isoc_ctl.transfer_buffer = NULL;
201 dev->isoc_ctl.num_bufs = 0;
202
203 dev->stream_state = STREAM_OFF;
204 }
205
206 /*
207 * Allocate URBs and start IRQ
208 */
209 static int au0828_init_isoc(struct au0828_dev *dev, int max_packets,
210 int num_bufs, int max_pkt_size,
211 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb))
212 {
213 struct au0828_dmaqueue *dma_q = &dev->vidq;
214 int i;
215 int sb_size, pipe;
216 struct urb *urb;
217 int j, k;
218 int rc;
219
220 au0828_isocdbg("au0828: called au0828_prepare_isoc\n");
221
222 dev->isoc_ctl.isoc_copy = isoc_copy;
223 dev->isoc_ctl.num_bufs = num_bufs;
224
225 dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL);
226 if (!dev->isoc_ctl.urb) {
227 au0828_isocdbg("cannot alloc memory for usb buffers\n");
228 return -ENOMEM;
229 }
230
231 dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs,
232 GFP_KERNEL);
233 if (!dev->isoc_ctl.transfer_buffer) {
234 au0828_isocdbg("cannot allocate memory for usb transfer\n");
235 kfree(dev->isoc_ctl.urb);
236 return -ENOMEM;
237 }
238
239 dev->isoc_ctl.max_pkt_size = max_pkt_size;
240 dev->isoc_ctl.buf = NULL;
241
242 sb_size = max_packets * dev->isoc_ctl.max_pkt_size;
243
244 /* allocate urbs and transfer buffers */
245 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
246 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
247 if (!urb) {
248 au0828_uninit_isoc(dev);
249 return -ENOMEM;
250 }
251 dev->isoc_ctl.urb[i] = urb;
252
253 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev,
254 sb_size, GFP_KERNEL, &urb->transfer_dma);
255 if (!dev->isoc_ctl.transfer_buffer[i]) {
256 printk("unable to allocate %i bytes for transfer 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 */
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_v4l2_buffer *vb = &buf->vb;
305 struct vb2_queue *q = vb->vb2_buf.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->sequence = dev->frame_count++;
312 else
313 vb->sequence = dev->vbi_frame_count++;
314
315 vb->field = V4L2_FIELD_INTERLACED;
316 vb->vb2_buf.timestamp = ktime_get_ns();
317 vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE);
318 }
319
320 /*
321 * Identify the buffer header type and properly handles
322 */
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 */
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
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 */
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 */
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.vb2_buf, 0);
534
535 vbi_buf = dev->isoc_ctl.vbi_buf;
536 if (vbi_buf != NULL)
537 vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 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.vb2_buf, 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(
586 &buf->vb.vb2_buf, 0);
587
588 /* As long as isoc traffic is arriving, keep
589 resetting the timer */
590 if (dev->vid_timeout_running)
591 mod_timer(&dev->vid_timeout,
592 jiffies + (HZ / 10));
593 if (dev->vbi_timeout_running)
594 mod_timer(&dev->vbi_timeout,
595 jiffies + (HZ / 10));
596 }
597
598 if (buf != NULL) {
599 if (fbyte & 0x40)
600 buf->top_field = 1;
601 else
602 buf->top_field = 0;
603 }
604
605 if (vbi_buf != NULL) {
606 if (fbyte & 0x40)
607 vbi_buf->top_field = 1;
608 else
609 vbi_buf->top_field = 0;
610 }
611
612 dev->vbi_read = 0;
613 vbi_dma_q->pos = 0;
614 dma_q->pos = 0;
615 }
616
617 vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
618 if (dev->vbi_read < vbi_field_size) {
619 remain = vbi_field_size - dev->vbi_read;
620 if (len < remain)
621 lencopy = len;
622 else
623 lencopy = remain;
624
625 if (vbi_buf != NULL)
626 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
627 vbioutp, len);
628
629 len -= lencopy;
630 p += lencopy;
631 dev->vbi_read += lencopy;
632 }
633
634 if (dev->vbi_read >= vbi_field_size && buf != NULL)
635 au0828_copy_video(dev, dma_q, buf, p, outp, len);
636 }
637 return rc;
638 }
639
640 void au0828_usb_v4l2_media_release(struct au0828_dev *dev)
641 {
642 #ifdef CONFIG_MEDIA_CONTROLLER
643 int i;
644
645 for (i = 0; i < AU0828_MAX_INPUT; i++) {
646 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
647 return;
648 media_device_unregister_entity(&dev->input_ent[i]);
649 }
650 #endif
651 }
652
653 static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev)
654 {
655 struct au0828_dev *dev =
656 container_of(v4l2_dev, struct au0828_dev, v4l2_dev);
657
658 v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl);
659 v4l2_device_unregister(&dev->v4l2_dev);
660 au0828_usb_v4l2_media_release(dev);
661 au0828_usb_release(dev);
662 }
663
664 int au0828_v4l2_device_register(struct usb_interface *interface,
665 struct au0828_dev *dev)
666 {
667 int retval;
668
669 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
670 return 0;
671
672 /* Create the v4l2_device */
673 #ifdef CONFIG_MEDIA_CONTROLLER
674 dev->v4l2_dev.mdev = dev->media_dev;
675 #endif
676 retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
677 if (retval) {
678 pr_err("%s() v4l2_device_register failed\n",
679 __func__);
680 return retval;
681 }
682
683 dev->v4l2_dev.release = au0828_usb_v4l2_release;
684
685 /* This control handler will inherit the controls from au8522 */
686 retval = v4l2_ctrl_handler_init(&dev->v4l2_ctrl_hdl, 4);
687 if (retval) {
688 pr_err("%s() v4l2_ctrl_handler_init failed\n",
689 __func__);
690 return retval;
691 }
692 dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl;
693
694 return 0;
695 }
696
697 static int queue_setup(struct vb2_queue *vq,
698 unsigned int *nbuffers, unsigned int *nplanes,
699 unsigned int sizes[], struct device *alloc_devs[])
700 {
701 struct au0828_dev *dev = vb2_get_drv_priv(vq);
702 unsigned long size = dev->height * dev->bytesperline;
703
704 if (*nplanes)
705 return sizes[0] < size ? -EINVAL : 0;
706 *nplanes = 1;
707 sizes[0] = size;
708 return 0;
709 }
710
711 static int
712 buffer_prepare(struct vb2_buffer *vb)
713 {
714 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
715 struct au0828_buffer *buf = container_of(vbuf,
716 struct au0828_buffer, vb);
717 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
718
719 buf->length = dev->height * dev->bytesperline;
720
721 if (vb2_plane_size(vb, 0) < buf->length) {
722 pr_err("%s data will not fit into plane (%lu < %lu)\n",
723 __func__, vb2_plane_size(vb, 0), buf->length);
724 return -EINVAL;
725 }
726 vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length);
727 return 0;
728 }
729
730 static void
731 buffer_queue(struct vb2_buffer *vb)
732 {
733 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
734 struct au0828_buffer *buf = container_of(vbuf,
735 struct au0828_buffer,
736 vb);
737 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
738 struct au0828_dmaqueue *vidq = &dev->vidq;
739 unsigned long flags = 0;
740
741 buf->mem = vb2_plane_vaddr(vb, 0);
742 buf->length = vb2_plane_size(vb, 0);
743
744 spin_lock_irqsave(&dev->slock, flags);
745 list_add_tail(&buf->list, &vidq->active);
746 spin_unlock_irqrestore(&dev->slock, flags);
747 }
748
749 static int au0828_i2s_init(struct au0828_dev *dev)
750 {
751 /* Enable i2s mode */
752 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
753 return 0;
754 }
755
756 /*
757 * Auvitek au0828 analog stream enable
758 */
759 static int au0828_analog_stream_enable(struct au0828_dev *d)
760 {
761 struct usb_interface *iface;
762 int ret, h, w;
763
764 dprintk(1, "au0828_analog_stream_enable called\n");
765
766 iface = usb_ifnum_to_if(d->usbdev, 0);
767 if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) {
768 dprintk(1, "Changing intf#0 to alt 5\n");
769 /* set au0828 interface0 to AS5 here again */
770 ret = usb_set_interface(d->usbdev, 0, 5);
771 if (ret < 0) {
772 pr_info("Au0828 can't set alt setting to 5!\n");
773 return -EBUSY;
774 }
775 }
776
777 h = d->height / 2 + 2;
778 w = d->width * 2;
779
780 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
781 au0828_writereg(d, 0x106, 0x00);
782 /* set x position */
783 au0828_writereg(d, 0x110, 0x00);
784 au0828_writereg(d, 0x111, 0x00);
785 au0828_writereg(d, 0x114, w & 0xff);
786 au0828_writereg(d, 0x115, w >> 8);
787 /* set y position */
788 au0828_writereg(d, 0x112, 0x00);
789 au0828_writereg(d, 0x113, 0x00);
790 au0828_writereg(d, 0x116, h & 0xff);
791 au0828_writereg(d, 0x117, h >> 8);
792 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
793
794 return 0;
795 }
796
797 static int au0828_analog_stream_disable(struct au0828_dev *d)
798 {
799 dprintk(1, "au0828_analog_stream_disable called\n");
800 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
801 return 0;
802 }
803
804 static void au0828_analog_stream_reset(struct au0828_dev *dev)
805 {
806 dprintk(1, "au0828_analog_stream_reset called\n");
807 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
808 mdelay(30);
809 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
810 }
811
812 /*
813 * Some operations needs to stop current streaming
814 */
815 static int au0828_stream_interrupt(struct au0828_dev *dev)
816 {
817 int ret = 0;
818
819 dev->stream_state = STREAM_INTERRUPT;
820 if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
821 return -ENODEV;
822 else if (ret) {
823 set_bit(DEV_MISCONFIGURED, &dev->dev_state);
824 dprintk(1, "%s device is misconfigured!\n", __func__);
825 return ret;
826 }
827 return 0;
828 }
829
830 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
831 {
832 struct au0828_dev *dev = vb2_get_drv_priv(vq);
833 int rc = 0;
834
835 dprintk(1, "au0828_start_analog_streaming called %d\n",
836 dev->streaming_users);
837
838 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
839 dev->frame_count = 0;
840 else
841 dev->vbi_frame_count = 0;
842
843 if (dev->streaming_users == 0) {
844 /* If we were doing ac97 instead of i2s, it would go here...*/
845 au0828_i2s_init(dev);
846 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
847 AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
848 au0828_isoc_copy);
849 if (rc < 0) {
850 pr_info("au0828_init_isoc failed\n");
851 return rc;
852 }
853
854 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
855 v4l2_device_call_all(&dev->v4l2_dev, 0, video,
856 s_stream, 1);
857 dev->vid_timeout_running = 1;
858 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
859 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
860 dev->vbi_timeout_running = 1;
861 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
862 }
863 }
864 dev->streaming_users++;
865 return rc;
866 }
867
868 static void au0828_stop_streaming(struct vb2_queue *vq)
869 {
870 struct au0828_dev *dev = vb2_get_drv_priv(vq);
871 struct au0828_dmaqueue *vidq = &dev->vidq;
872 unsigned long flags = 0;
873
874 dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users);
875
876 if (dev->streaming_users-- == 1)
877 au0828_uninit_isoc(dev);
878
879 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
880 dev->vid_timeout_running = 0;
881 del_timer_sync(&dev->vid_timeout);
882
883 spin_lock_irqsave(&dev->slock, flags);
884 if (dev->isoc_ctl.buf != NULL) {
885 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf,
886 VB2_BUF_STATE_ERROR);
887 dev->isoc_ctl.buf = NULL;
888 }
889 while (!list_empty(&vidq->active)) {
890 struct au0828_buffer *buf;
891
892 buf = list_entry(vidq->active.next, struct au0828_buffer, list);
893 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
894 list_del(&buf->list);
895 }
896 spin_unlock_irqrestore(&dev->slock, flags);
897 }
898
899 void au0828_stop_vbi_streaming(struct vb2_queue *vq)
900 {
901 struct au0828_dev *dev = vb2_get_drv_priv(vq);
902 struct au0828_dmaqueue *vbiq = &dev->vbiq;
903 unsigned long flags = 0;
904
905 dprintk(1, "au0828_stop_vbi_streaming called %d\n",
906 dev->streaming_users);
907
908 if (dev->streaming_users-- == 1)
909 au0828_uninit_isoc(dev);
910
911 spin_lock_irqsave(&dev->slock, flags);
912 if (dev->isoc_ctl.vbi_buf != NULL) {
913 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf,
914 VB2_BUF_STATE_ERROR);
915 dev->isoc_ctl.vbi_buf = NULL;
916 }
917 while (!list_empty(&vbiq->active)) {
918 struct au0828_buffer *buf;
919
920 buf = list_entry(vbiq->active.next, struct au0828_buffer, list);
921 list_del(&buf->list);
922 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
923 }
924 spin_unlock_irqrestore(&dev->slock, flags);
925
926 dev->vbi_timeout_running = 0;
927 del_timer_sync(&dev->vbi_timeout);
928 }
929
930 static const struct vb2_ops au0828_video_qops = {
931 .queue_setup = queue_setup,
932 .buf_prepare = buffer_prepare,
933 .buf_queue = buffer_queue,
934 .start_streaming = au0828_start_analog_streaming,
935 .stop_streaming = au0828_stop_streaming,
936 .wait_prepare = vb2_ops_wait_prepare,
937 .wait_finish = vb2_ops_wait_finish,
938 };
939
940 /* ------------------------------------------------------------------
941 V4L2 interface
942 ------------------------------------------------------------------*/
943 /*
944 * au0828_analog_unregister
945 * unregister v4l2 devices
946 */
947 int au0828_analog_unregister(struct au0828_dev *dev)
948 {
949 dprintk(1, "au0828_analog_unregister called\n");
950
951 /* No analog TV */
952 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
953 return 0;
954
955 mutex_lock(&au0828_sysfs_lock);
956 video_unregister_device(&dev->vdev);
957 video_unregister_device(&dev->vbi_dev);
958 mutex_unlock(&au0828_sysfs_lock);
959
960 v4l2_device_disconnect(&dev->v4l2_dev);
961 v4l2_device_put(&dev->v4l2_dev);
962
963 return 1;
964 }
965
966 /* This function ensures that video frames continue to be delivered even if
967 the ITU-656 input isn't receiving any data (thereby preventing applications
968 such as tvtime from hanging) */
969 static void au0828_vid_buffer_timeout(unsigned long data)
970 {
971 struct au0828_dev *dev = (struct au0828_dev *) data;
972 struct au0828_dmaqueue *dma_q = &dev->vidq;
973 struct au0828_buffer *buf;
974 unsigned char *vid_data;
975 unsigned long flags = 0;
976
977 spin_lock_irqsave(&dev->slock, flags);
978
979 buf = dev->isoc_ctl.buf;
980 if (buf != NULL) {
981 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
982 memset(vid_data, 0x00, buf->length); /* Blank green frame */
983 buffer_filled(dev, dma_q, buf);
984 }
985 get_next_buf(dma_q, &buf);
986
987 if (dev->vid_timeout_running == 1)
988 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
989
990 spin_unlock_irqrestore(&dev->slock, flags);
991 }
992
993 static void au0828_vbi_buffer_timeout(unsigned long data)
994 {
995 struct au0828_dev *dev = (struct au0828_dev *) data;
996 struct au0828_dmaqueue *dma_q = &dev->vbiq;
997 struct au0828_buffer *buf;
998 unsigned char *vbi_data;
999 unsigned long flags = 0;
1000
1001 spin_lock_irqsave(&dev->slock, flags);
1002
1003 buf = dev->isoc_ctl.vbi_buf;
1004 if (buf != NULL) {
1005 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
1006 memset(vbi_data, 0x00, buf->length);
1007 buffer_filled(dev, dma_q, buf);
1008 }
1009 vbi_get_next_buf(dma_q, &buf);
1010
1011 if (dev->vbi_timeout_running == 1)
1012 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1013 spin_unlock_irqrestore(&dev->slock, flags);
1014 }
1015
1016 static int au0828_v4l2_open(struct file *filp)
1017 {
1018 struct au0828_dev *dev = video_drvdata(filp);
1019 int ret;
1020
1021 dprintk(1,
1022 "%s called std_set %d dev_state %ld stream users %d users %d\n",
1023 __func__, dev->std_set_in_tuner_core, dev->dev_state,
1024 dev->streaming_users, dev->users);
1025
1026 if (mutex_lock_interruptible(&dev->lock))
1027 return -ERESTARTSYS;
1028
1029 ret = v4l2_fh_open(filp);
1030 if (ret) {
1031 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n",
1032 __func__, ret);
1033 mutex_unlock(&dev->lock);
1034 return ret;
1035 }
1036
1037 if (dev->users == 0) {
1038 au0828_analog_stream_enable(dev);
1039 au0828_analog_stream_reset(dev);
1040 dev->stream_state = STREAM_OFF;
1041 set_bit(DEV_INITIALIZED, &dev->dev_state);
1042 }
1043 dev->users++;
1044 mutex_unlock(&dev->lock);
1045 return ret;
1046 }
1047
1048 static int au0828_v4l2_close(struct file *filp)
1049 {
1050 int ret;
1051 struct au0828_dev *dev = video_drvdata(filp);
1052 struct video_device *vdev = video_devdata(filp);
1053
1054 dprintk(1,
1055 "%s called std_set %d dev_state %ld stream users %d users %d\n",
1056 __func__, dev->std_set_in_tuner_core, dev->dev_state,
1057 dev->streaming_users, dev->users);
1058
1059 mutex_lock(&dev->lock);
1060 if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) {
1061 /* Cancel timeout thread in case they didn't call streamoff */
1062 dev->vid_timeout_running = 0;
1063 del_timer_sync(&dev->vid_timeout);
1064 } else if (vdev->vfl_type == VFL_TYPE_VBI &&
1065 dev->vbi_timeout_running) {
1066 /* Cancel timeout thread in case they didn't call streamoff */
1067 dev->vbi_timeout_running = 0;
1068 del_timer_sync(&dev->vbi_timeout);
1069 }
1070
1071 if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
1072 goto end;
1073
1074 if (dev->users == 1) {
1075 /*
1076 * Avoid putting tuner in sleep if DVB or ALSA are
1077 * streaming.
1078 *
1079 * On most USB devices like au0828 the tuner can
1080 * be safely put in sleep stare here if ALSA isn't
1081 * streaming. Exceptions are some very old USB tuner
1082 * models such as em28xx-based WinTV USB2 which have
1083 * a separate audio output jack. The devices that have
1084 * a separate audio output jack have analog tuners,
1085 * like Philips FM1236. Those devices are always on,
1086 * so the s_power callback are silently ignored.
1087 * So, the current logic here does the following:
1088 * Disable (put tuner to sleep) when
1089 * - ALSA and DVB aren't not streaming;
1090 * - the last V4L2 file handler is closed.
1091 *
1092 * FIXME:
1093 *
1094 * Additionally, this logic could be improved to
1095 * disable the media source if the above conditions
1096 * are met and if the device:
1097 * - doesn't have a separate audio out plug (or
1098 * - doesn't use a silicon tuner like xc2028/3028/4000/5000).
1099 *
1100 * Once this additional logic is in place, a callback
1101 * is needed to enable the media source and power on
1102 * the tuner, for radio to work.
1103 */
1104 ret = v4l_enable_media_source(vdev);
1105 if (ret == 0)
1106 v4l2_device_call_all(&dev->v4l2_dev, 0, core,
1107 s_power, 0);
1108 dev->std_set_in_tuner_core = 0;
1109
1110 /* When close the device, set the usb intf0 into alt0 to free
1111 USB bandwidth */
1112 ret = usb_set_interface(dev->usbdev, 0, 0);
1113 if (ret < 0)
1114 pr_info("Au0828 can't set alternate to 0!\n");
1115 }
1116 end:
1117 _vb2_fop_release(filp, NULL);
1118 dev->users--;
1119 mutex_unlock(&dev->lock);
1120 return 0;
1121 }
1122
1123 /* Must be called with dev->lock held */
1124 static void au0828_init_tuner(struct au0828_dev *dev)
1125 {
1126 struct v4l2_frequency f = {
1127 .frequency = dev->ctrl_freq,
1128 .type = V4L2_TUNER_ANALOG_TV,
1129 };
1130
1131 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1132 dev->std_set_in_tuner_core, dev->dev_state);
1133
1134 if (dev->std_set_in_tuner_core)
1135 return;
1136 dev->std_set_in_tuner_core = 1;
1137 i2c_gate_ctrl(dev, 1);
1138 /* If we've never sent the standard in tuner core, do so now.
1139 We don't do this at device probe because we don't want to
1140 incur the cost of a firmware load */
1141 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std);
1142 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
1143 i2c_gate_ctrl(dev, 0);
1144 }
1145
1146 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
1147 struct v4l2_format *format)
1148 {
1149 int ret;
1150 int width = format->fmt.pix.width;
1151 int height = format->fmt.pix.height;
1152
1153 /* If they are demanding a format other than the one we support,
1154 bail out (tvtime asks for UYVY and then retries with YUYV) */
1155 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)
1156 return -EINVAL;
1157
1158 /* format->fmt.pix.width only support 720 and height 480 */
1159 if (width != 720)
1160 width = 720;
1161 if (height != 480)
1162 height = 480;
1163
1164 format->fmt.pix.width = width;
1165 format->fmt.pix.height = height;
1166 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1167 format->fmt.pix.bytesperline = width * 2;
1168 format->fmt.pix.sizeimage = width * height * 2;
1169 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1170 format->fmt.pix.field = V4L2_FIELD_INTERLACED;
1171 format->fmt.pix.priv = 0;
1172
1173 if (cmd == VIDIOC_TRY_FMT)
1174 return 0;
1175
1176 /* maybe set new image format, driver current only support 720*480 */
1177 dev->width = width;
1178 dev->height = height;
1179 dev->frame_size = width * height * 2;
1180 dev->field_size = width * height;
1181 dev->bytesperline = width * 2;
1182
1183 if (dev->stream_state == STREAM_ON) {
1184 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
1185 ret = au0828_stream_interrupt(dev);
1186 if (ret != 0) {
1187 dprintk(1, "error interrupting video stream!\n");
1188 return ret;
1189 }
1190 }
1191
1192 au0828_analog_stream_enable(dev);
1193
1194 return 0;
1195 }
1196
1197 static int vidioc_querycap(struct file *file, void *priv,
1198 struct v4l2_capability *cap)
1199 {
1200 struct video_device *vdev = video_devdata(file);
1201 struct au0828_dev *dev = video_drvdata(file);
1202
1203 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1204 dev->std_set_in_tuner_core, dev->dev_state);
1205
1206 strlcpy(cap->driver, "au0828", sizeof(cap->driver));
1207 strlcpy(cap->card, dev->board.name, sizeof(cap->card));
1208 usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info));
1209
1210 /* set the device capabilities */
1211 cap->device_caps = V4L2_CAP_AUDIO |
1212 V4L2_CAP_READWRITE |
1213 V4L2_CAP_STREAMING |
1214 V4L2_CAP_TUNER;
1215 if (vdev->vfl_type == VFL_TYPE_GRABBER)
1216 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
1217 else
1218 cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
1219 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS |
1220 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE;
1221 return 0;
1222 }
1223
1224 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1225 struct v4l2_fmtdesc *f)
1226 {
1227 if (f->index)
1228 return -EINVAL;
1229
1230 dprintk(1, "%s called\n", __func__);
1231
1232 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1233 strcpy(f->description, "Packed YUV2");
1234
1235 f->flags = 0;
1236 f->pixelformat = V4L2_PIX_FMT_UYVY;
1237
1238 return 0;
1239 }
1240
1241 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1242 struct v4l2_format *f)
1243 {
1244 struct au0828_dev *dev = video_drvdata(file);
1245
1246 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1247 dev->std_set_in_tuner_core, dev->dev_state);
1248
1249 f->fmt.pix.width = dev->width;
1250 f->fmt.pix.height = dev->height;
1251 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1252 f->fmt.pix.bytesperline = dev->bytesperline;
1253 f->fmt.pix.sizeimage = dev->frame_size;
1254 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
1255 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1256 f->fmt.pix.priv = 0;
1257 return 0;
1258 }
1259
1260 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1261 struct v4l2_format *f)
1262 {
1263 struct au0828_dev *dev = video_drvdata(file);
1264
1265 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1266 dev->std_set_in_tuner_core, dev->dev_state);
1267
1268 return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
1269 }
1270
1271 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1272 struct v4l2_format *f)
1273 {
1274 struct au0828_dev *dev = video_drvdata(file);
1275 int rc;
1276
1277 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1278 dev->std_set_in_tuner_core, dev->dev_state);
1279
1280 rc = check_dev(dev);
1281 if (rc < 0)
1282 return rc;
1283
1284 if (vb2_is_busy(&dev->vb_vidq)) {
1285 pr_info("%s queue busy\n", __func__);
1286 rc = -EBUSY;
1287 goto out;
1288 }
1289
1290 rc = au0828_set_format(dev, VIDIOC_S_FMT, f);
1291 out:
1292 return rc;
1293 }
1294
1295 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
1296 {
1297 struct au0828_dev *dev = video_drvdata(file);
1298
1299 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1300 dev->std_set_in_tuner_core, dev->dev_state);
1301
1302 if (norm == dev->std)
1303 return 0;
1304
1305 if (dev->streaming_users > 0)
1306 return -EBUSY;
1307
1308 dev->std = norm;
1309
1310 au0828_init_tuner(dev);
1311
1312 i2c_gate_ctrl(dev, 1);
1313
1314 /*
1315 * FIXME: when we support something other than 60Hz standards,
1316 * we are going to have to make the au0828 bridge adjust the size
1317 * of its capture buffer, which is currently hardcoded at 720x480
1318 */
1319
1320 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm);
1321
1322 i2c_gate_ctrl(dev, 0);
1323
1324 return 0;
1325 }
1326
1327 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
1328 {
1329 struct au0828_dev *dev = video_drvdata(file);
1330
1331 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1332 dev->std_set_in_tuner_core, dev->dev_state);
1333
1334 *norm = dev->std;
1335 return 0;
1336 }
1337
1338 static int vidioc_enum_input(struct file *file, void *priv,
1339 struct v4l2_input *input)
1340 {
1341 struct au0828_dev *dev = video_drvdata(file);
1342 unsigned int tmp;
1343
1344 static const char *inames[] = {
1345 [AU0828_VMUX_UNDEFINED] = "Undefined",
1346 [AU0828_VMUX_COMPOSITE] = "Composite",
1347 [AU0828_VMUX_SVIDEO] = "S-Video",
1348 [AU0828_VMUX_CABLE] = "Cable TV",
1349 [AU0828_VMUX_TELEVISION] = "Television",
1350 [AU0828_VMUX_DVB] = "DVB",
1351 };
1352
1353 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1354 dev->std_set_in_tuner_core, dev->dev_state);
1355
1356 tmp = input->index;
1357
1358 if (tmp >= AU0828_MAX_INPUT)
1359 return -EINVAL;
1360 if (AUVI_INPUT(tmp).type == 0)
1361 return -EINVAL;
1362
1363 input->index = tmp;
1364 strcpy(input->name, inames[AUVI_INPUT(tmp).type]);
1365 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
1366 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) {
1367 input->type |= V4L2_INPUT_TYPE_TUNER;
1368 input->audioset = 1;
1369 } else {
1370 input->type |= V4L2_INPUT_TYPE_CAMERA;
1371 input->audioset = 2;
1372 }
1373
1374 input->std = dev->vdev.tvnorms;
1375
1376 return 0;
1377 }
1378
1379 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1380 {
1381 struct au0828_dev *dev = video_drvdata(file);
1382
1383 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1384 dev->std_set_in_tuner_core, dev->dev_state);
1385
1386 *i = dev->ctrl_input;
1387 return 0;
1388 }
1389
1390 static void au0828_s_input(struct au0828_dev *dev, int index)
1391 {
1392 int i;
1393
1394 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1395 dev->std_set_in_tuner_core, dev->dev_state);
1396
1397 switch (AUVI_INPUT(index).type) {
1398 case AU0828_VMUX_SVIDEO:
1399 dev->input_type = AU0828_VMUX_SVIDEO;
1400 dev->ctrl_ainput = 1;
1401 break;
1402 case AU0828_VMUX_COMPOSITE:
1403 dev->input_type = AU0828_VMUX_COMPOSITE;
1404 dev->ctrl_ainput = 1;
1405 break;
1406 case AU0828_VMUX_TELEVISION:
1407 dev->input_type = AU0828_VMUX_TELEVISION;
1408 dev->ctrl_ainput = 0;
1409 break;
1410 default:
1411 dprintk(1, "unknown input type set [%d]\n",
1412 AUVI_INPUT(index).type);
1413 return;
1414 }
1415
1416 dev->ctrl_input = index;
1417
1418 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
1419 AUVI_INPUT(index).vmux, 0, 0);
1420
1421 for (i = 0; i < AU0828_MAX_INPUT; i++) {
1422 int enable = 0;
1423 if (AUVI_INPUT(i).audio_setup == NULL)
1424 continue;
1425
1426 if (i == index)
1427 enable = 1;
1428 else
1429 enable = 0;
1430 if (enable) {
1431 (AUVI_INPUT(i).audio_setup)(dev, enable);
1432 } else {
1433 /* Make sure we leave it turned on if some
1434 other input is routed to this callback */
1435 if ((AUVI_INPUT(i).audio_setup) !=
1436 ((AUVI_INPUT(index).audio_setup))) {
1437 (AUVI_INPUT(i).audio_setup)(dev, enable);
1438 }
1439 }
1440 }
1441
1442 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
1443 AUVI_INPUT(index).amux, 0, 0);
1444 }
1445
1446 static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
1447 {
1448 struct au0828_dev *dev = video_drvdata(file);
1449 struct video_device *vfd = video_devdata(file);
1450
1451 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
1452 index);
1453 if (index >= AU0828_MAX_INPUT)
1454 return -EINVAL;
1455 if (AUVI_INPUT(index).type == 0)
1456 return -EINVAL;
1457
1458 if (dev->ctrl_input == index)
1459 return 0;
1460
1461 au0828_s_input(dev, index);
1462
1463 /*
1464 * Input has been changed. Disable the media source
1465 * associated with the old input and enable source
1466 * for the newly set input
1467 */
1468 v4l_disable_media_source(vfd);
1469 return v4l_enable_media_source(vfd);
1470 }
1471
1472 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a)
1473 {
1474 if (a->index > 1)
1475 return -EINVAL;
1476
1477 dprintk(1, "%s called\n", __func__);
1478
1479 if (a->index == 0)
1480 strcpy(a->name, "Television");
1481 else
1482 strcpy(a->name, "Line in");
1483
1484 a->capability = V4L2_AUDCAP_STEREO;
1485 return 0;
1486 }
1487
1488 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1489 {
1490 struct au0828_dev *dev = video_drvdata(file);
1491
1492 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1493 dev->std_set_in_tuner_core, dev->dev_state);
1494
1495 a->index = dev->ctrl_ainput;
1496 if (a->index == 0)
1497 strcpy(a->name, "Television");
1498 else
1499 strcpy(a->name, "Line in");
1500
1501 a->capability = V4L2_AUDCAP_STEREO;
1502 return 0;
1503 }
1504
1505 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)
1506 {
1507 struct au0828_dev *dev = video_drvdata(file);
1508
1509 if (a->index != dev->ctrl_ainput)
1510 return -EINVAL;
1511
1512 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1513 dev->std_set_in_tuner_core, dev->dev_state);
1514 return 0;
1515 }
1516
1517 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1518 {
1519 struct au0828_dev *dev = video_drvdata(file);
1520 struct video_device *vfd = video_devdata(file);
1521 int ret;
1522
1523 if (t->index != 0)
1524 return -EINVAL;
1525
1526 ret = v4l_enable_media_source(vfd);
1527 if (ret)
1528 return ret;
1529
1530 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1531 dev->std_set_in_tuner_core, dev->dev_state);
1532
1533 strcpy(t->name, "Auvitek tuner");
1534
1535 au0828_init_tuner(dev);
1536 i2c_gate_ctrl(dev, 1);
1537 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1538 i2c_gate_ctrl(dev, 0);
1539 return 0;
1540 }
1541
1542 static int vidioc_s_tuner(struct file *file, void *priv,
1543 const struct v4l2_tuner *t)
1544 {
1545 struct au0828_dev *dev = video_drvdata(file);
1546
1547 if (t->index != 0)
1548 return -EINVAL;
1549
1550 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1551 dev->std_set_in_tuner_core, dev->dev_state);
1552
1553 au0828_init_tuner(dev);
1554 i2c_gate_ctrl(dev, 1);
1555 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1556 i2c_gate_ctrl(dev, 0);
1557
1558 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
1559 t->afc);
1560
1561 return 0;
1562
1563 }
1564
1565 static int vidioc_g_frequency(struct file *file, void *priv,
1566 struct v4l2_frequency *freq)
1567 {
1568 struct au0828_dev *dev = video_drvdata(file);
1569
1570 if (freq->tuner != 0)
1571 return -EINVAL;
1572 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1573 dev->std_set_in_tuner_core, dev->dev_state);
1574 freq->frequency = dev->ctrl_freq;
1575 return 0;
1576 }
1577
1578 static int vidioc_s_frequency(struct file *file, void *priv,
1579 const struct v4l2_frequency *freq)
1580 {
1581 struct au0828_dev *dev = video_drvdata(file);
1582 struct v4l2_frequency new_freq = *freq;
1583
1584 if (freq->tuner != 0)
1585 return -EINVAL;
1586
1587 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1588 dev->std_set_in_tuner_core, dev->dev_state);
1589
1590 au0828_init_tuner(dev);
1591 i2c_gate_ctrl(dev, 1);
1592
1593 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
1594 /* Get the actual set (and possibly clamped) frequency */
1595 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
1596 dev->ctrl_freq = new_freq.frequency;
1597
1598 i2c_gate_ctrl(dev, 0);
1599
1600 au0828_analog_stream_reset(dev);
1601
1602 return 0;
1603 }
1604
1605
1606 /* RAW VBI ioctls */
1607
1608 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1609 struct v4l2_format *format)
1610 {
1611 struct au0828_dev *dev = video_drvdata(file);
1612
1613 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1614 dev->std_set_in_tuner_core, dev->dev_state);
1615
1616 format->fmt.vbi.samples_per_line = dev->vbi_width;
1617 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1618 format->fmt.vbi.offset = 0;
1619 format->fmt.vbi.flags = 0;
1620 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
1621
1622 format->fmt.vbi.count[0] = dev->vbi_height;
1623 format->fmt.vbi.count[1] = dev->vbi_height;
1624 format->fmt.vbi.start[0] = 21;
1625 format->fmt.vbi.start[1] = 284;
1626 memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
1627
1628 return 0;
1629 }
1630
1631 static int vidioc_cropcap(struct file *file, void *priv,
1632 struct v4l2_cropcap *cc)
1633 {
1634 struct au0828_dev *dev = video_drvdata(file);
1635
1636 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1637 return -EINVAL;
1638
1639 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1640 dev->std_set_in_tuner_core, dev->dev_state);
1641
1642 cc->bounds.left = 0;
1643 cc->bounds.top = 0;
1644 cc->bounds.width = dev->width;
1645 cc->bounds.height = dev->height;
1646
1647 cc->defrect = cc->bounds;
1648
1649 cc->pixelaspect.numerator = 54;
1650 cc->pixelaspect.denominator = 59;
1651
1652 return 0;
1653 }
1654
1655 #ifdef CONFIG_VIDEO_ADV_DEBUG
1656 static int vidioc_g_register(struct file *file, void *priv,
1657 struct v4l2_dbg_register *reg)
1658 {
1659 struct au0828_dev *dev = video_drvdata(file);
1660
1661 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1662 dev->std_set_in_tuner_core, dev->dev_state);
1663
1664 reg->val = au0828_read(dev, reg->reg);
1665 reg->size = 1;
1666 return 0;
1667 }
1668
1669 static int vidioc_s_register(struct file *file, void *priv,
1670 const struct v4l2_dbg_register *reg)
1671 {
1672 struct au0828_dev *dev = video_drvdata(file);
1673
1674 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1675 dev->std_set_in_tuner_core, dev->dev_state);
1676
1677 return au0828_writereg(dev, reg->reg, reg->val);
1678 }
1679 #endif
1680
1681 static int vidioc_log_status(struct file *file, void *fh)
1682 {
1683 struct video_device *vdev = video_devdata(file);
1684
1685 dprintk(1, "%s called\n", __func__);
1686
1687 v4l2_ctrl_log_status(file, fh);
1688 v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status);
1689 return 0;
1690 }
1691
1692 void au0828_v4l2_suspend(struct au0828_dev *dev)
1693 {
1694 struct urb *urb;
1695 int i;
1696
1697 pr_info("stopping V4L2\n");
1698
1699 if (dev->stream_state == STREAM_ON) {
1700 pr_info("stopping V4L2 active URBs\n");
1701 au0828_analog_stream_disable(dev);
1702 /* stop urbs */
1703 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1704 urb = dev->isoc_ctl.urb[i];
1705 if (urb) {
1706 if (!irqs_disabled())
1707 usb_kill_urb(urb);
1708 else
1709 usb_unlink_urb(urb);
1710 }
1711 }
1712 }
1713
1714 if (dev->vid_timeout_running)
1715 del_timer_sync(&dev->vid_timeout);
1716 if (dev->vbi_timeout_running)
1717 del_timer_sync(&dev->vbi_timeout);
1718 }
1719
1720 void au0828_v4l2_resume(struct au0828_dev *dev)
1721 {
1722 int i, rc;
1723
1724 pr_info("restarting V4L2\n");
1725
1726 if (dev->stream_state == STREAM_ON) {
1727 au0828_stream_interrupt(dev);
1728 au0828_init_tuner(dev);
1729 }
1730
1731 if (dev->vid_timeout_running)
1732 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
1733 if (dev->vbi_timeout_running)
1734 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1735
1736 /* If we were doing ac97 instead of i2s, it would go here...*/
1737 au0828_i2s_init(dev);
1738
1739 au0828_analog_stream_enable(dev);
1740
1741 if (!(dev->stream_state == STREAM_ON)) {
1742 au0828_analog_stream_reset(dev);
1743 /* submit urbs */
1744 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1745 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
1746 if (rc) {
1747 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
1748 i, rc);
1749 au0828_uninit_isoc(dev);
1750 }
1751 }
1752 }
1753 }
1754
1755 static struct v4l2_file_operations au0828_v4l_fops = {
1756 .owner = THIS_MODULE,
1757 .open = au0828_v4l2_open,
1758 .release = au0828_v4l2_close,
1759 .read = vb2_fop_read,
1760 .poll = vb2_fop_poll,
1761 .mmap = vb2_fop_mmap,
1762 .unlocked_ioctl = video_ioctl2,
1763 };
1764
1765 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1766 .vidioc_querycap = vidioc_querycap,
1767 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1768 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1769 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1770 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1771 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1772 .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1773 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1774 .vidioc_enumaudio = vidioc_enumaudio,
1775 .vidioc_g_audio = vidioc_g_audio,
1776 .vidioc_s_audio = vidioc_s_audio,
1777 .vidioc_cropcap = vidioc_cropcap,
1778
1779 .vidioc_reqbufs = vb2_ioctl_reqbufs,
1780 .vidioc_create_bufs = vb2_ioctl_create_bufs,
1781 .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
1782 .vidioc_querybuf = vb2_ioctl_querybuf,
1783 .vidioc_qbuf = vb2_ioctl_qbuf,
1784 .vidioc_dqbuf = vb2_ioctl_dqbuf,
1785 .vidioc_expbuf = vb2_ioctl_expbuf,
1786
1787 .vidioc_s_std = vidioc_s_std,
1788 .vidioc_g_std = vidioc_g_std,
1789 .vidioc_enum_input = vidioc_enum_input,
1790 .vidioc_g_input = vidioc_g_input,
1791 .vidioc_s_input = vidioc_s_input,
1792
1793 .vidioc_streamon = vb2_ioctl_streamon,
1794 .vidioc_streamoff = vb2_ioctl_streamoff,
1795
1796 .vidioc_g_tuner = vidioc_g_tuner,
1797 .vidioc_s_tuner = vidioc_s_tuner,
1798 .vidioc_g_frequency = vidioc_g_frequency,
1799 .vidioc_s_frequency = vidioc_s_frequency,
1800 #ifdef CONFIG_VIDEO_ADV_DEBUG
1801 .vidioc_g_register = vidioc_g_register,
1802 .vidioc_s_register = vidioc_s_register,
1803 #endif
1804 .vidioc_log_status = vidioc_log_status,
1805 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1806 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1807 };
1808
1809 static const struct video_device au0828_video_template = {
1810 .fops = &au0828_v4l_fops,
1811 .release = video_device_release_empty,
1812 .ioctl_ops = &video_ioctl_ops,
1813 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M,
1814 };
1815
1816 static int au0828_vb2_setup(struct au0828_dev *dev)
1817 {
1818 int rc;
1819 struct vb2_queue *q;
1820
1821 /* Setup Videobuf2 for Video capture */
1822 q = &dev->vb_vidq;
1823 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1824 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1825 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1826 q->drv_priv = dev;
1827 q->buf_struct_size = sizeof(struct au0828_buffer);
1828 q->ops = &au0828_video_qops;
1829 q->mem_ops = &vb2_vmalloc_memops;
1830
1831 rc = vb2_queue_init(q);
1832 if (rc < 0)
1833 return rc;
1834
1835 /* Setup Videobuf2 for VBI capture */
1836 q = &dev->vb_vbiq;
1837 q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1838 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1839 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1840 q->drv_priv = dev;
1841 q->buf_struct_size = sizeof(struct au0828_buffer);
1842 q->ops = &au0828_vbi_qops;
1843 q->mem_ops = &vb2_vmalloc_memops;
1844
1845 rc = vb2_queue_init(q);
1846 if (rc < 0)
1847 return rc;
1848
1849 return 0;
1850 }
1851
1852 static void au0828_analog_create_entities(struct au0828_dev *dev)
1853 {
1854 #if defined(CONFIG_MEDIA_CONTROLLER)
1855 static const char * const inames[] = {
1856 [AU0828_VMUX_COMPOSITE] = "Composite",
1857 [AU0828_VMUX_SVIDEO] = "S-Video",
1858 [AU0828_VMUX_CABLE] = "Cable TV",
1859 [AU0828_VMUX_TELEVISION] = "Television",
1860 [AU0828_VMUX_DVB] = "DVB",
1861 };
1862 int ret, i;
1863
1864 /* Initialize Video and VBI pads */
1865 dev->video_pad.flags = MEDIA_PAD_FL_SINK;
1866 ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad);
1867 if (ret < 0)
1868 pr_err("failed to initialize video media entity!\n");
1869
1870 dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
1871 ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad);
1872 if (ret < 0)
1873 pr_err("failed to initialize vbi media entity!\n");
1874
1875 /* Create entities for each input connector */
1876 for (i = 0; i < AU0828_MAX_INPUT; i++) {
1877 struct media_entity *ent = &dev->input_ent[i];
1878
1879 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
1880 break;
1881
1882 ent->name = inames[AUVI_INPUT(i).type];
1883 ent->flags = MEDIA_ENT_FL_CONNECTOR;
1884 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
1885
1886 switch (AUVI_INPUT(i).type) {
1887 case AU0828_VMUX_COMPOSITE:
1888 ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
1889 break;
1890 case AU0828_VMUX_SVIDEO:
1891 ent->function = MEDIA_ENT_F_CONN_SVIDEO;
1892 break;
1893 case AU0828_VMUX_CABLE:
1894 case AU0828_VMUX_TELEVISION:
1895 case AU0828_VMUX_DVB:
1896 default: /* Just to shut up a warning */
1897 ent->function = MEDIA_ENT_F_CONN_RF;
1898 break;
1899 }
1900
1901 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
1902 if (ret < 0)
1903 pr_err("failed to initialize input pad[%d]!\n", i);
1904
1905 ret = media_device_register_entity(dev->media_dev, ent);
1906 if (ret < 0)
1907 pr_err("failed to register input entity %d!\n", i);
1908 }
1909 #endif
1910 }
1911
1912 /**************************************************************************/
1913
1914 int au0828_analog_register(struct au0828_dev *dev,
1915 struct usb_interface *interface)
1916 {
1917 int retval = -ENOMEM;
1918 struct usb_host_interface *iface_desc;
1919 struct usb_endpoint_descriptor *endpoint;
1920 int i, ret;
1921
1922 dprintk(1, "au0828_analog_register called for intf#%d!\n",
1923 interface->cur_altsetting->desc.bInterfaceNumber);
1924
1925 /* No analog TV */
1926 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
1927 return 0;
1928
1929 /* set au0828 usb interface0 to as5 */
1930 retval = usb_set_interface(dev->usbdev,
1931 interface->cur_altsetting->desc.bInterfaceNumber, 5);
1932 if (retval != 0) {
1933 pr_info("Failure setting usb interface0 to as5\n");
1934 return retval;
1935 }
1936
1937 /* Figure out which endpoint has the isoc interface */
1938 iface_desc = interface->cur_altsetting;
1939 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
1940 endpoint = &iface_desc->endpoint[i].desc;
1941 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1942 == USB_DIR_IN) &&
1943 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1944 == USB_ENDPOINT_XFER_ISOC)) {
1945
1946 /* we find our isoc in endpoint */
1947 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
1948 dev->max_pkt_size = (tmp & 0x07ff) *
1949 (((tmp & 0x1800) >> 11) + 1);
1950 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
1951 dprintk(1,
1952 "Found isoc endpoint 0x%02x, max size = %d\n",
1953 dev->isoc_in_endpointaddr, dev->max_pkt_size);
1954 }
1955 }
1956 if (!(dev->isoc_in_endpointaddr)) {
1957 pr_info("Could not locate isoc endpoint\n");
1958 return -ENODEV;
1959 }
1960
1961 init_waitqueue_head(&dev->open);
1962 spin_lock_init(&dev->slock);
1963
1964 /* init video dma queues */
1965 INIT_LIST_HEAD(&dev->vidq.active);
1966 INIT_LIST_HEAD(&dev->vbiq.active);
1967
1968 setup_timer(&dev->vid_timeout, au0828_vid_buffer_timeout,
1969 (unsigned long)dev);
1970 setup_timer(&dev->vbi_timeout, au0828_vbi_buffer_timeout,
1971 (unsigned long)dev);
1972
1973 dev->width = NTSC_STD_W;
1974 dev->height = NTSC_STD_H;
1975 dev->field_size = dev->width * dev->height;
1976 dev->frame_size = dev->field_size << 1;
1977 dev->bytesperline = dev->width << 1;
1978 dev->vbi_width = 720;
1979 dev->vbi_height = 1;
1980 dev->ctrl_ainput = 0;
1981 dev->ctrl_freq = 960;
1982 dev->std = V4L2_STD_NTSC_M;
1983 /* Default input is TV Tuner */
1984 au0828_s_input(dev, 0);
1985
1986 mutex_init(&dev->vb_queue_lock);
1987 mutex_init(&dev->vb_vbi_queue_lock);
1988
1989 /* Fill the video capture device struct */
1990 dev->vdev = au0828_video_template;
1991 dev->vdev.v4l2_dev = &dev->v4l2_dev;
1992 dev->vdev.lock = &dev->lock;
1993 dev->vdev.queue = &dev->vb_vidq;
1994 dev->vdev.queue->lock = &dev->vb_queue_lock;
1995 strcpy(dev->vdev.name, "au0828a video");
1996
1997 /* Setup the VBI device */
1998 dev->vbi_dev = au0828_video_template;
1999 dev->vbi_dev.v4l2_dev = &dev->v4l2_dev;
2000 dev->vbi_dev.lock = &dev->lock;
2001 dev->vbi_dev.queue = &dev->vb_vbiq;
2002 dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock;
2003 strcpy(dev->vbi_dev.name, "au0828a vbi");
2004
2005 /* Init entities at the Media Controller */
2006 au0828_analog_create_entities(dev);
2007
2008 /* initialize videobuf2 stuff */
2009 retval = au0828_vb2_setup(dev);
2010 if (retval != 0) {
2011 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n",
2012 retval);
2013 return -ENODEV;
2014 }
2015
2016 /* Register the v4l2 device */
2017 video_set_drvdata(&dev->vdev, dev);
2018 retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1);
2019 if (retval != 0) {
2020 dprintk(1, "unable to register video device (error = %d).\n",
2021 retval);
2022 ret = -ENODEV;
2023 goto err_reg_vdev;
2024 }
2025
2026 /* Register the vbi device */
2027 video_set_drvdata(&dev->vbi_dev, dev);
2028 retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1);
2029 if (retval != 0) {
2030 dprintk(1, "unable to register vbi device (error = %d).\n",
2031 retval);
2032 ret = -ENODEV;
2033 goto err_reg_vbi_dev;
2034 }
2035
2036 #ifdef CONFIG_MEDIA_CONTROLLER
2037 retval = v4l2_mc_create_media_graph(dev->media_dev);
2038 if (retval) {
2039 pr_err("%s() au0282_dev_register failed to create graph\n",
2040 __func__);
2041 ret = -ENODEV;
2042 goto err_reg_vbi_dev;
2043 }
2044 #endif
2045
2046 dprintk(1, "%s completed!\n", __func__);
2047
2048 return 0;
2049
2050 err_reg_vbi_dev:
2051 video_unregister_device(&dev->vdev);
2052 err_reg_vdev:
2053 vb2_queue_release(&dev->vb_vidq);
2054 vb2_queue_release(&dev->vb_vbiq);
2055 return ret;
2056 }
2057
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