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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
[mirror_ubuntu-kernels.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_isocdbg("cannot alloc isoc_ctl.urb %i\n", i);
249 au0828_uninit_isoc(dev);
250 return -ENOMEM;
251 }
252 dev->isoc_ctl.urb[i] = urb;
253
254 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev,
255 sb_size, GFP_KERNEL, &urb->transfer_dma);
256 if (!dev->isoc_ctl.transfer_buffer[i]) {
257 printk("unable to allocate %i bytes for transfer"
258 " buffer %i%s\n",
259 sb_size, i,
260 in_interrupt() ? " while in int" : "");
261 au0828_uninit_isoc(dev);
262 return -ENOMEM;
263 }
264 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
265
266 pipe = usb_rcvisocpipe(dev->usbdev,
267 dev->isoc_in_endpointaddr),
268
269 usb_fill_int_urb(urb, dev->usbdev, pipe,
270 dev->isoc_ctl.transfer_buffer[i], sb_size,
271 au0828_irq_callback, dma_q, 1);
272
273 urb->number_of_packets = max_packets;
274 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
275
276 k = 0;
277 for (j = 0; j < max_packets; j++) {
278 urb->iso_frame_desc[j].offset = k;
279 urb->iso_frame_desc[j].length =
280 dev->isoc_ctl.max_pkt_size;
281 k += dev->isoc_ctl.max_pkt_size;
282 }
283 }
284
285 /* submit urbs and enables IRQ */
286 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
287 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
288 if (rc) {
289 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
290 i, rc);
291 au0828_uninit_isoc(dev);
292 return rc;
293 }
294 }
295
296 return 0;
297 }
298
299 /*
300 * Announces that a buffer were filled and request the next
301 */
302 static inline void buffer_filled(struct au0828_dev *dev,
303 struct au0828_dmaqueue *dma_q,
304 struct au0828_buffer *buf)
305 {
306 struct vb2_v4l2_buffer *vb = &buf->vb;
307 struct vb2_queue *q = vb->vb2_buf.vb2_queue;
308
309 /* Advice that buffer was filled */
310 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field);
311
312 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
313 vb->sequence = dev->frame_count++;
314 else
315 vb->sequence = dev->vbi_frame_count++;
316
317 vb->field = V4L2_FIELD_INTERLACED;
318 vb->vb2_buf.timestamp = ktime_get_ns();
319 vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE);
320 }
321
322 /*
323 * Identify the buffer header type and properly handles
324 */
325 static void au0828_copy_video(struct au0828_dev *dev,
326 struct au0828_dmaqueue *dma_q,
327 struct au0828_buffer *buf,
328 unsigned char *p,
329 unsigned char *outp, unsigned long len)
330 {
331 void *fieldstart, *startwrite, *startread;
332 int linesdone, currlinedone, offset, lencopy, remain;
333 int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */
334
335 if (len == 0)
336 return;
337
338 if (dma_q->pos + len > buf->length)
339 len = buf->length - dma_q->pos;
340
341 startread = p;
342 remain = len;
343
344 /* Interlaces frame */
345 if (buf->top_field)
346 fieldstart = outp;
347 else
348 fieldstart = outp + bytesperline;
349
350 linesdone = dma_q->pos / bytesperline;
351 currlinedone = dma_q->pos % bytesperline;
352 offset = linesdone * bytesperline * 2 + currlinedone;
353 startwrite = fieldstart + offset;
354 lencopy = bytesperline - currlinedone;
355 lencopy = lencopy > remain ? remain : lencopy;
356
357 if ((char *)startwrite + lencopy > (char *)outp + buf->length) {
358 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
359 ((char *)startwrite + lencopy) -
360 ((char *)outp + buf->length));
361 remain = (char *)outp + buf->length - (char *)startwrite;
362 lencopy = remain;
363 }
364 if (lencopy <= 0)
365 return;
366 memcpy(startwrite, startread, lencopy);
367
368 remain -= lencopy;
369
370 while (remain > 0) {
371 startwrite += lencopy + bytesperline;
372 startread += lencopy;
373 if (bytesperline > remain)
374 lencopy = remain;
375 else
376 lencopy = bytesperline;
377
378 if ((char *)startwrite + lencopy > (char *)outp +
379 buf->length) {
380 au0828_isocdbg("Overflow %zi bytes past buf end (2)\n",
381 ((char *)startwrite + lencopy) -
382 ((char *)outp + buf->length));
383 lencopy = remain = (char *)outp + buf->length -
384 (char *)startwrite;
385 }
386 if (lencopy <= 0)
387 break;
388
389 memcpy(startwrite, startread, lencopy);
390
391 remain -= lencopy;
392 }
393
394 if (offset > 1440) {
395 /* We have enough data to check for greenscreen */
396 if (outp[0] < 0x60 && outp[1440] < 0x60)
397 dev->greenscreen_detected = 1;
398 }
399
400 dma_q->pos += len;
401 }
402
403 /*
404 * video-buf generic routine to get the next available buffer
405 */
406 static inline void get_next_buf(struct au0828_dmaqueue *dma_q,
407 struct au0828_buffer **buf)
408 {
409 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
410
411 if (list_empty(&dma_q->active)) {
412 au0828_isocdbg("No active queue to serve\n");
413 dev->isoc_ctl.buf = NULL;
414 *buf = NULL;
415 return;
416 }
417
418 /* Get the next buffer */
419 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
420 /* Cleans up buffer - Useful for testing for frame/URB loss */
421 list_del(&(*buf)->list);
422 dma_q->pos = 0;
423 (*buf)->vb_buf = (*buf)->mem;
424 dev->isoc_ctl.buf = *buf;
425
426 return;
427 }
428
429 static void au0828_copy_vbi(struct au0828_dev *dev,
430 struct au0828_dmaqueue *dma_q,
431 struct au0828_buffer *buf,
432 unsigned char *p,
433 unsigned char *outp, unsigned long len)
434 {
435 unsigned char *startwrite, *startread;
436 int bytesperline;
437 int i, j = 0;
438
439 if (dev == NULL) {
440 au0828_isocdbg("dev is null\n");
441 return;
442 }
443
444 if (dma_q == NULL) {
445 au0828_isocdbg("dma_q is null\n");
446 return;
447 }
448 if (buf == NULL)
449 return;
450 if (p == NULL) {
451 au0828_isocdbg("p is null\n");
452 return;
453 }
454 if (outp == NULL) {
455 au0828_isocdbg("outp is null\n");
456 return;
457 }
458
459 bytesperline = dev->vbi_width;
460
461 if (dma_q->pos + len > buf->length)
462 len = buf->length - dma_q->pos;
463
464 startread = p;
465 startwrite = outp + (dma_q->pos / 2);
466
467 /* Make sure the bottom field populates the second half of the frame */
468 if (buf->top_field == 0)
469 startwrite += bytesperline * dev->vbi_height;
470
471 for (i = 0; i < len; i += 2)
472 startwrite[j++] = startread[i+1];
473
474 dma_q->pos += len;
475 }
476
477
478 /*
479 * video-buf generic routine to get the next available VBI buffer
480 */
481 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q,
482 struct au0828_buffer **buf)
483 {
484 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq);
485
486 if (list_empty(&dma_q->active)) {
487 au0828_isocdbg("No active queue to serve\n");
488 dev->isoc_ctl.vbi_buf = NULL;
489 *buf = NULL;
490 return;
491 }
492
493 /* Get the next buffer */
494 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
495 /* Cleans up buffer - Useful for testing for frame/URB loss */
496 list_del(&(*buf)->list);
497 dma_q->pos = 0;
498 (*buf)->vb_buf = (*buf)->mem;
499 dev->isoc_ctl.vbi_buf = *buf;
500 return;
501 }
502
503 /*
504 * Controls the isoc copy of each urb packet
505 */
506 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
507 {
508 struct au0828_buffer *buf;
509 struct au0828_buffer *vbi_buf;
510 struct au0828_dmaqueue *dma_q = urb->context;
511 struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq;
512 unsigned char *outp = NULL;
513 unsigned char *vbioutp = NULL;
514 int i, len = 0, rc = 1;
515 unsigned char *p;
516 unsigned char fbyte;
517 unsigned int vbi_field_size;
518 unsigned int remain, lencopy;
519
520 if (!dev)
521 return 0;
522
523 if (test_bit(DEV_DISCONNECTED, &dev->dev_state) ||
524 test_bit(DEV_MISCONFIGURED, &dev->dev_state))
525 return 0;
526
527 if (urb->status < 0) {
528 print_err_status(dev, -1, urb->status);
529 if (urb->status == -ENOENT)
530 return 0;
531 }
532
533 buf = dev->isoc_ctl.buf;
534 if (buf != NULL)
535 outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
536
537 vbi_buf = dev->isoc_ctl.vbi_buf;
538 if (vbi_buf != NULL)
539 vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0);
540
541 for (i = 0; i < urb->number_of_packets; i++) {
542 int status = urb->iso_frame_desc[i].status;
543
544 if (status < 0) {
545 print_err_status(dev, i, status);
546 if (urb->iso_frame_desc[i].status != -EPROTO)
547 continue;
548 }
549
550 if (urb->iso_frame_desc[i].actual_length <= 0)
551 continue;
552
553 if (urb->iso_frame_desc[i].actual_length >
554 dev->max_pkt_size) {
555 au0828_isocdbg("packet bigger than packet size");
556 continue;
557 }
558
559 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
560 fbyte = p[0];
561 len = urb->iso_frame_desc[i].actual_length - 4;
562 p += 4;
563
564 if (fbyte & 0x80) {
565 len -= 4;
566 p += 4;
567 au0828_isocdbg("Video frame %s\n",
568 (fbyte & 0x40) ? "odd" : "even");
569 if (fbyte & 0x40) {
570 /* VBI */
571 if (vbi_buf != NULL)
572 buffer_filled(dev, vbi_dma_q, vbi_buf);
573 vbi_get_next_buf(vbi_dma_q, &vbi_buf);
574 if (vbi_buf == NULL)
575 vbioutp = NULL;
576 else
577 vbioutp = vb2_plane_vaddr(
578 &vbi_buf->vb.vb2_buf, 0);
579
580 /* Video */
581 if (buf != NULL)
582 buffer_filled(dev, dma_q, buf);
583 get_next_buf(dma_q, &buf);
584 if (buf == NULL)
585 outp = NULL;
586 else
587 outp = vb2_plane_vaddr(
588 &buf->vb.vb2_buf, 0);
589
590 /* As long as isoc traffic is arriving, keep
591 resetting the timer */
592 if (dev->vid_timeout_running)
593 mod_timer(&dev->vid_timeout,
594 jiffies + (HZ / 10));
595 if (dev->vbi_timeout_running)
596 mod_timer(&dev->vbi_timeout,
597 jiffies + (HZ / 10));
598 }
599
600 if (buf != NULL) {
601 if (fbyte & 0x40)
602 buf->top_field = 1;
603 else
604 buf->top_field = 0;
605 }
606
607 if (vbi_buf != NULL) {
608 if (fbyte & 0x40)
609 vbi_buf->top_field = 1;
610 else
611 vbi_buf->top_field = 0;
612 }
613
614 dev->vbi_read = 0;
615 vbi_dma_q->pos = 0;
616 dma_q->pos = 0;
617 }
618
619 vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
620 if (dev->vbi_read < vbi_field_size) {
621 remain = vbi_field_size - dev->vbi_read;
622 if (len < remain)
623 lencopy = len;
624 else
625 lencopy = remain;
626
627 if (vbi_buf != NULL)
628 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
629 vbioutp, len);
630
631 len -= lencopy;
632 p += lencopy;
633 dev->vbi_read += lencopy;
634 }
635
636 if (dev->vbi_read >= vbi_field_size && buf != NULL)
637 au0828_copy_video(dev, dma_q, buf, p, outp, len);
638 }
639 return rc;
640 }
641
642 void au0828_usb_v4l2_media_release(struct au0828_dev *dev)
643 {
644 #ifdef CONFIG_MEDIA_CONTROLLER
645 int i;
646
647 for (i = 0; i < AU0828_MAX_INPUT; i++) {
648 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
649 return;
650 media_device_unregister_entity(&dev->input_ent[i]);
651 }
652 #endif
653 }
654
655 static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev)
656 {
657 struct au0828_dev *dev =
658 container_of(v4l2_dev, struct au0828_dev, v4l2_dev);
659
660 v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl);
661 v4l2_device_unregister(&dev->v4l2_dev);
662 au0828_usb_v4l2_media_release(dev);
663 au0828_usb_release(dev);
664 }
665
666 int au0828_v4l2_device_register(struct usb_interface *interface,
667 struct au0828_dev *dev)
668 {
669 int retval;
670
671 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
672 return 0;
673
674 /* Create the v4l2_device */
675 #ifdef CONFIG_MEDIA_CONTROLLER
676 dev->v4l2_dev.mdev = dev->media_dev;
677 #endif
678 retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
679 if (retval) {
680 pr_err("%s() v4l2_device_register failed\n",
681 __func__);
682 mutex_unlock(&dev->lock);
683 kfree(dev);
684 return retval;
685 }
686
687 dev->v4l2_dev.release = au0828_usb_v4l2_release;
688
689 /* This control handler will inherit the controls from au8522 */
690 retval = v4l2_ctrl_handler_init(&dev->v4l2_ctrl_hdl, 4);
691 if (retval) {
692 pr_err("%s() v4l2_ctrl_handler_init failed\n",
693 __func__);
694 mutex_unlock(&dev->lock);
695 kfree(dev);
696 return retval;
697 }
698 dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl;
699
700 return 0;
701 }
702
703 static int queue_setup(struct vb2_queue *vq,
704 unsigned int *nbuffers, unsigned int *nplanes,
705 unsigned int sizes[], void *alloc_ctxs[])
706 {
707 struct au0828_dev *dev = vb2_get_drv_priv(vq);
708 unsigned long size = dev->height * dev->bytesperline;
709
710 if (*nplanes)
711 return sizes[0] < size ? -EINVAL : 0;
712 *nplanes = 1;
713 sizes[0] = size;
714 return 0;
715 }
716
717 static int
718 buffer_prepare(struct vb2_buffer *vb)
719 {
720 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
721 struct au0828_buffer *buf = container_of(vbuf,
722 struct au0828_buffer, vb);
723 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
724
725 buf->length = dev->height * dev->bytesperline;
726
727 if (vb2_plane_size(vb, 0) < buf->length) {
728 pr_err("%s data will not fit into plane (%lu < %lu)\n",
729 __func__, vb2_plane_size(vb, 0), buf->length);
730 return -EINVAL;
731 }
732 vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length);
733 return 0;
734 }
735
736 static void
737 buffer_queue(struct vb2_buffer *vb)
738 {
739 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
740 struct au0828_buffer *buf = container_of(vbuf,
741 struct au0828_buffer,
742 vb);
743 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
744 struct au0828_dmaqueue *vidq = &dev->vidq;
745 unsigned long flags = 0;
746
747 buf->mem = vb2_plane_vaddr(vb, 0);
748 buf->length = vb2_plane_size(vb, 0);
749
750 spin_lock_irqsave(&dev->slock, flags);
751 list_add_tail(&buf->list, &vidq->active);
752 spin_unlock_irqrestore(&dev->slock, flags);
753 }
754
755 static int au0828_i2s_init(struct au0828_dev *dev)
756 {
757 /* Enable i2s mode */
758 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
759 return 0;
760 }
761
762 /*
763 * Auvitek au0828 analog stream enable
764 */
765 static int au0828_analog_stream_enable(struct au0828_dev *d)
766 {
767 struct usb_interface *iface;
768 int ret, h, w;
769
770 dprintk(1, "au0828_analog_stream_enable called\n");
771
772 iface = usb_ifnum_to_if(d->usbdev, 0);
773 if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) {
774 dprintk(1, "Changing intf#0 to alt 5\n");
775 /* set au0828 interface0 to AS5 here again */
776 ret = usb_set_interface(d->usbdev, 0, 5);
777 if (ret < 0) {
778 pr_info("Au0828 can't set alt setting to 5!\n");
779 return -EBUSY;
780 }
781 }
782
783 h = d->height / 2 + 2;
784 w = d->width * 2;
785
786 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
787 au0828_writereg(d, 0x106, 0x00);
788 /* set x position */
789 au0828_writereg(d, 0x110, 0x00);
790 au0828_writereg(d, 0x111, 0x00);
791 au0828_writereg(d, 0x114, w & 0xff);
792 au0828_writereg(d, 0x115, w >> 8);
793 /* set y position */
794 au0828_writereg(d, 0x112, 0x00);
795 au0828_writereg(d, 0x113, 0x00);
796 au0828_writereg(d, 0x116, h & 0xff);
797 au0828_writereg(d, 0x117, h >> 8);
798 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
799
800 return 0;
801 }
802
803 static int au0828_analog_stream_disable(struct au0828_dev *d)
804 {
805 dprintk(1, "au0828_analog_stream_disable called\n");
806 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
807 return 0;
808 }
809
810 static void au0828_analog_stream_reset(struct au0828_dev *dev)
811 {
812 dprintk(1, "au0828_analog_stream_reset called\n");
813 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
814 mdelay(30);
815 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
816 }
817
818 /*
819 * Some operations needs to stop current streaming
820 */
821 static int au0828_stream_interrupt(struct au0828_dev *dev)
822 {
823 int ret = 0;
824
825 dev->stream_state = STREAM_INTERRUPT;
826 if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
827 return -ENODEV;
828 else if (ret) {
829 set_bit(DEV_MISCONFIGURED, &dev->dev_state);
830 dprintk(1, "%s device is misconfigured!\n", __func__);
831 return ret;
832 }
833 return 0;
834 }
835
836 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
837 {
838 struct au0828_dev *dev = vb2_get_drv_priv(vq);
839 int rc = 0;
840
841 dprintk(1, "au0828_start_analog_streaming called %d\n",
842 dev->streaming_users);
843
844 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
845 dev->frame_count = 0;
846 else
847 dev->vbi_frame_count = 0;
848
849 if (dev->streaming_users == 0) {
850 /* If we were doing ac97 instead of i2s, it would go here...*/
851 au0828_i2s_init(dev);
852 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
853 AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
854 au0828_isoc_copy);
855 if (rc < 0) {
856 pr_info("au0828_init_isoc failed\n");
857 return rc;
858 }
859
860 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
861 v4l2_device_call_all(&dev->v4l2_dev, 0, video,
862 s_stream, 1);
863 dev->vid_timeout_running = 1;
864 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
865 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
866 dev->vbi_timeout_running = 1;
867 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
868 }
869 }
870 dev->streaming_users++;
871 return rc;
872 }
873
874 static void au0828_stop_streaming(struct vb2_queue *vq)
875 {
876 struct au0828_dev *dev = vb2_get_drv_priv(vq);
877 struct au0828_dmaqueue *vidq = &dev->vidq;
878 unsigned long flags = 0;
879
880 dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users);
881
882 if (dev->streaming_users-- == 1)
883 au0828_uninit_isoc(dev);
884
885 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
886 dev->vid_timeout_running = 0;
887 del_timer_sync(&dev->vid_timeout);
888
889 spin_lock_irqsave(&dev->slock, flags);
890 if (dev->isoc_ctl.buf != NULL) {
891 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf,
892 VB2_BUF_STATE_ERROR);
893 dev->isoc_ctl.buf = NULL;
894 }
895 while (!list_empty(&vidq->active)) {
896 struct au0828_buffer *buf;
897
898 buf = list_entry(vidq->active.next, struct au0828_buffer, list);
899 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
900 list_del(&buf->list);
901 }
902 spin_unlock_irqrestore(&dev->slock, flags);
903 }
904
905 void au0828_stop_vbi_streaming(struct vb2_queue *vq)
906 {
907 struct au0828_dev *dev = vb2_get_drv_priv(vq);
908 struct au0828_dmaqueue *vbiq = &dev->vbiq;
909 unsigned long flags = 0;
910
911 dprintk(1, "au0828_stop_vbi_streaming called %d\n",
912 dev->streaming_users);
913
914 if (dev->streaming_users-- == 1)
915 au0828_uninit_isoc(dev);
916
917 spin_lock_irqsave(&dev->slock, flags);
918 if (dev->isoc_ctl.vbi_buf != NULL) {
919 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf,
920 VB2_BUF_STATE_ERROR);
921 dev->isoc_ctl.vbi_buf = NULL;
922 }
923 while (!list_empty(&vbiq->active)) {
924 struct au0828_buffer *buf;
925
926 buf = list_entry(vbiq->active.next, struct au0828_buffer, list);
927 list_del(&buf->list);
928 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
929 }
930 spin_unlock_irqrestore(&dev->slock, flags);
931
932 dev->vbi_timeout_running = 0;
933 del_timer_sync(&dev->vbi_timeout);
934 }
935
936 static struct vb2_ops au0828_video_qops = {
937 .queue_setup = queue_setup,
938 .buf_prepare = buffer_prepare,
939 .buf_queue = buffer_queue,
940 .start_streaming = au0828_start_analog_streaming,
941 .stop_streaming = au0828_stop_streaming,
942 .wait_prepare = vb2_ops_wait_prepare,
943 .wait_finish = vb2_ops_wait_finish,
944 };
945
946 /* ------------------------------------------------------------------
947 V4L2 interface
948 ------------------------------------------------------------------*/
949 /*
950 * au0828_analog_unregister
951 * unregister v4l2 devices
952 */
953 int au0828_analog_unregister(struct au0828_dev *dev)
954 {
955 dprintk(1, "au0828_analog_unregister called\n");
956
957 /* No analog TV */
958 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
959 return 0;
960
961 mutex_lock(&au0828_sysfs_lock);
962 video_unregister_device(&dev->vdev);
963 video_unregister_device(&dev->vbi_dev);
964 mutex_unlock(&au0828_sysfs_lock);
965
966 v4l2_device_disconnect(&dev->v4l2_dev);
967 v4l2_device_put(&dev->v4l2_dev);
968
969 return 1;
970 }
971
972 /* This function ensures that video frames continue to be delivered even if
973 the ITU-656 input isn't receiving any data (thereby preventing applications
974 such as tvtime from hanging) */
975 static void au0828_vid_buffer_timeout(unsigned long data)
976 {
977 struct au0828_dev *dev = (struct au0828_dev *) data;
978 struct au0828_dmaqueue *dma_q = &dev->vidq;
979 struct au0828_buffer *buf;
980 unsigned char *vid_data;
981 unsigned long flags = 0;
982
983 spin_lock_irqsave(&dev->slock, flags);
984
985 buf = dev->isoc_ctl.buf;
986 if (buf != NULL) {
987 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
988 memset(vid_data, 0x00, buf->length); /* Blank green frame */
989 buffer_filled(dev, dma_q, buf);
990 }
991 get_next_buf(dma_q, &buf);
992
993 if (dev->vid_timeout_running == 1)
994 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
995
996 spin_unlock_irqrestore(&dev->slock, flags);
997 }
998
999 static void au0828_vbi_buffer_timeout(unsigned long data)
1000 {
1001 struct au0828_dev *dev = (struct au0828_dev *) data;
1002 struct au0828_dmaqueue *dma_q = &dev->vbiq;
1003 struct au0828_buffer *buf;
1004 unsigned char *vbi_data;
1005 unsigned long flags = 0;
1006
1007 spin_lock_irqsave(&dev->slock, flags);
1008
1009 buf = dev->isoc_ctl.vbi_buf;
1010 if (buf != NULL) {
1011 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
1012 memset(vbi_data, 0x00, buf->length);
1013 buffer_filled(dev, dma_q, buf);
1014 }
1015 vbi_get_next_buf(dma_q, &buf);
1016
1017 if (dev->vbi_timeout_running == 1)
1018 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1019 spin_unlock_irqrestore(&dev->slock, flags);
1020 }
1021
1022 static int au0828_v4l2_open(struct file *filp)
1023 {
1024 struct au0828_dev *dev = video_drvdata(filp);
1025 int ret;
1026
1027 dprintk(1,
1028 "%s called std_set %d dev_state %ld stream users %d users %d\n",
1029 __func__, dev->std_set_in_tuner_core, dev->dev_state,
1030 dev->streaming_users, dev->users);
1031
1032 if (mutex_lock_interruptible(&dev->lock))
1033 return -ERESTARTSYS;
1034
1035 ret = v4l2_fh_open(filp);
1036 if (ret) {
1037 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n",
1038 __func__, ret);
1039 mutex_unlock(&dev->lock);
1040 return ret;
1041 }
1042
1043 if (dev->users == 0) {
1044 au0828_analog_stream_enable(dev);
1045 au0828_analog_stream_reset(dev);
1046 dev->stream_state = STREAM_OFF;
1047 set_bit(DEV_INITIALIZED, &dev->dev_state);
1048 }
1049 dev->users++;
1050 mutex_unlock(&dev->lock);
1051 return ret;
1052 }
1053
1054 static int au0828_v4l2_close(struct file *filp)
1055 {
1056 int ret;
1057 struct au0828_dev *dev = video_drvdata(filp);
1058 struct video_device *vdev = video_devdata(filp);
1059
1060 dprintk(1,
1061 "%s called std_set %d dev_state %ld stream users %d users %d\n",
1062 __func__, dev->std_set_in_tuner_core, dev->dev_state,
1063 dev->streaming_users, dev->users);
1064
1065 mutex_lock(&dev->lock);
1066 if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) {
1067 /* Cancel timeout thread in case they didn't call streamoff */
1068 dev->vid_timeout_running = 0;
1069 del_timer_sync(&dev->vid_timeout);
1070 } else if (vdev->vfl_type == VFL_TYPE_VBI &&
1071 dev->vbi_timeout_running) {
1072 /* Cancel timeout thread in case they didn't call streamoff */
1073 dev->vbi_timeout_running = 0;
1074 del_timer_sync(&dev->vbi_timeout);
1075 }
1076
1077 if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
1078 goto end;
1079
1080 if (dev->users == 1) {
1081 /*
1082 * Avoid putting tuner in sleep if DVB or ALSA are
1083 * streaming.
1084 *
1085 * On most USB devices like au0828 the tuner can
1086 * be safely put in sleep stare here if ALSA isn't
1087 * streaming. Exceptions are some very old USB tuner
1088 * models such as em28xx-based WinTV USB2 which have
1089 * a separate audio output jack. The devices that have
1090 * a separate audio output jack have analog tuners,
1091 * like Philips FM1236. Those devices are always on,
1092 * so the s_power callback are silently ignored.
1093 * So, the current logic here does the following:
1094 * Disable (put tuner to sleep) when
1095 * - ALSA and DVB aren't not streaming;
1096 * - the last V4L2 file handler is closed.
1097 *
1098 * FIXME:
1099 *
1100 * Additionally, this logic could be improved to
1101 * disable the media source if the above conditions
1102 * are met and if the device:
1103 * - doesn't have a separate audio out plug (or
1104 * - doesn't use a silicon tuner like xc2028/3028/4000/5000).
1105 *
1106 * Once this additional logic is in place, a callback
1107 * is needed to enable the media source and power on
1108 * the tuner, for radio to work.
1109 */
1110 ret = v4l_enable_media_source(vdev);
1111 if (ret == 0)
1112 v4l2_device_call_all(&dev->v4l2_dev, 0, core,
1113 s_power, 0);
1114 dev->std_set_in_tuner_core = 0;
1115
1116 /* When close the device, set the usb intf0 into alt0 to free
1117 USB bandwidth */
1118 ret = usb_set_interface(dev->usbdev, 0, 0);
1119 if (ret < 0)
1120 pr_info("Au0828 can't set alternate to 0!\n");
1121 }
1122 end:
1123 _vb2_fop_release(filp, NULL);
1124 dev->users--;
1125 mutex_unlock(&dev->lock);
1126 return 0;
1127 }
1128
1129 /* Must be called with dev->lock held */
1130 static void au0828_init_tuner(struct au0828_dev *dev)
1131 {
1132 struct v4l2_frequency f = {
1133 .frequency = dev->ctrl_freq,
1134 .type = V4L2_TUNER_ANALOG_TV,
1135 };
1136
1137 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1138 dev->std_set_in_tuner_core, dev->dev_state);
1139
1140 if (dev->std_set_in_tuner_core)
1141 return;
1142 dev->std_set_in_tuner_core = 1;
1143 i2c_gate_ctrl(dev, 1);
1144 /* If we've never sent the standard in tuner core, do so now.
1145 We don't do this at device probe because we don't want to
1146 incur the cost of a firmware load */
1147 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std);
1148 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
1149 i2c_gate_ctrl(dev, 0);
1150 }
1151
1152 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
1153 struct v4l2_format *format)
1154 {
1155 int ret;
1156 int width = format->fmt.pix.width;
1157 int height = format->fmt.pix.height;
1158
1159 /* If they are demanding a format other than the one we support,
1160 bail out (tvtime asks for UYVY and then retries with YUYV) */
1161 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)
1162 return -EINVAL;
1163
1164 /* format->fmt.pix.width only support 720 and height 480 */
1165 if (width != 720)
1166 width = 720;
1167 if (height != 480)
1168 height = 480;
1169
1170 format->fmt.pix.width = width;
1171 format->fmt.pix.height = height;
1172 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1173 format->fmt.pix.bytesperline = width * 2;
1174 format->fmt.pix.sizeimage = width * height * 2;
1175 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1176 format->fmt.pix.field = V4L2_FIELD_INTERLACED;
1177 format->fmt.pix.priv = 0;
1178
1179 if (cmd == VIDIOC_TRY_FMT)
1180 return 0;
1181
1182 /* maybe set new image format, driver current only support 720*480 */
1183 dev->width = width;
1184 dev->height = height;
1185 dev->frame_size = width * height * 2;
1186 dev->field_size = width * height;
1187 dev->bytesperline = width * 2;
1188
1189 if (dev->stream_state == STREAM_ON) {
1190 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
1191 ret = au0828_stream_interrupt(dev);
1192 if (ret != 0) {
1193 dprintk(1, "error interrupting video stream!\n");
1194 return ret;
1195 }
1196 }
1197
1198 au0828_analog_stream_enable(dev);
1199
1200 return 0;
1201 }
1202
1203 static int vidioc_querycap(struct file *file, void *priv,
1204 struct v4l2_capability *cap)
1205 {
1206 struct video_device *vdev = video_devdata(file);
1207 struct au0828_dev *dev = video_drvdata(file);
1208
1209 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1210 dev->std_set_in_tuner_core, dev->dev_state);
1211
1212 strlcpy(cap->driver, "au0828", sizeof(cap->driver));
1213 strlcpy(cap->card, dev->board.name, sizeof(cap->card));
1214 usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info));
1215
1216 /* set the device capabilities */
1217 cap->device_caps = V4L2_CAP_AUDIO |
1218 V4L2_CAP_READWRITE |
1219 V4L2_CAP_STREAMING |
1220 V4L2_CAP_TUNER;
1221 if (vdev->vfl_type == VFL_TYPE_GRABBER)
1222 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
1223 else
1224 cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
1225 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS |
1226 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE;
1227 return 0;
1228 }
1229
1230 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1231 struct v4l2_fmtdesc *f)
1232 {
1233 if (f->index)
1234 return -EINVAL;
1235
1236 dprintk(1, "%s called\n", __func__);
1237
1238 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1239 strcpy(f->description, "Packed YUV2");
1240
1241 f->flags = 0;
1242 f->pixelformat = V4L2_PIX_FMT_UYVY;
1243
1244 return 0;
1245 }
1246
1247 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1248 struct v4l2_format *f)
1249 {
1250 struct au0828_dev *dev = video_drvdata(file);
1251
1252 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1253 dev->std_set_in_tuner_core, dev->dev_state);
1254
1255 f->fmt.pix.width = dev->width;
1256 f->fmt.pix.height = dev->height;
1257 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1258 f->fmt.pix.bytesperline = dev->bytesperline;
1259 f->fmt.pix.sizeimage = dev->frame_size;
1260 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
1261 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1262 f->fmt.pix.priv = 0;
1263 return 0;
1264 }
1265
1266 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1267 struct v4l2_format *f)
1268 {
1269 struct au0828_dev *dev = video_drvdata(file);
1270
1271 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1272 dev->std_set_in_tuner_core, dev->dev_state);
1273
1274 return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
1275 }
1276
1277 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1278 struct v4l2_format *f)
1279 {
1280 struct au0828_dev *dev = video_drvdata(file);
1281 int rc;
1282
1283 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1284 dev->std_set_in_tuner_core, dev->dev_state);
1285
1286 rc = check_dev(dev);
1287 if (rc < 0)
1288 return rc;
1289
1290 if (vb2_is_busy(&dev->vb_vidq)) {
1291 pr_info("%s queue busy\n", __func__);
1292 rc = -EBUSY;
1293 goto out;
1294 }
1295
1296 rc = au0828_set_format(dev, VIDIOC_S_FMT, f);
1297 out:
1298 return rc;
1299 }
1300
1301 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
1302 {
1303 struct au0828_dev *dev = video_drvdata(file);
1304
1305 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1306 dev->std_set_in_tuner_core, dev->dev_state);
1307
1308 if (norm == dev->std)
1309 return 0;
1310
1311 if (dev->streaming_users > 0)
1312 return -EBUSY;
1313
1314 dev->std = norm;
1315
1316 au0828_init_tuner(dev);
1317
1318 i2c_gate_ctrl(dev, 1);
1319
1320 /*
1321 * FIXME: when we support something other than 60Hz standards,
1322 * we are going to have to make the au0828 bridge adjust the size
1323 * of its capture buffer, which is currently hardcoded at 720x480
1324 */
1325
1326 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm);
1327
1328 i2c_gate_ctrl(dev, 0);
1329
1330 return 0;
1331 }
1332
1333 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
1334 {
1335 struct au0828_dev *dev = video_drvdata(file);
1336
1337 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1338 dev->std_set_in_tuner_core, dev->dev_state);
1339
1340 *norm = dev->std;
1341 return 0;
1342 }
1343
1344 static int vidioc_enum_input(struct file *file, void *priv,
1345 struct v4l2_input *input)
1346 {
1347 struct au0828_dev *dev = video_drvdata(file);
1348 unsigned int tmp;
1349
1350 static const char *inames[] = {
1351 [AU0828_VMUX_UNDEFINED] = "Undefined",
1352 [AU0828_VMUX_COMPOSITE] = "Composite",
1353 [AU0828_VMUX_SVIDEO] = "S-Video",
1354 [AU0828_VMUX_CABLE] = "Cable TV",
1355 [AU0828_VMUX_TELEVISION] = "Television",
1356 [AU0828_VMUX_DVB] = "DVB",
1357 };
1358
1359 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1360 dev->std_set_in_tuner_core, dev->dev_state);
1361
1362 tmp = input->index;
1363
1364 if (tmp >= AU0828_MAX_INPUT)
1365 return -EINVAL;
1366 if (AUVI_INPUT(tmp).type == 0)
1367 return -EINVAL;
1368
1369 input->index = tmp;
1370 strcpy(input->name, inames[AUVI_INPUT(tmp).type]);
1371 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
1372 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) {
1373 input->type |= V4L2_INPUT_TYPE_TUNER;
1374 input->audioset = 1;
1375 } else {
1376 input->type |= V4L2_INPUT_TYPE_CAMERA;
1377 input->audioset = 2;
1378 }
1379
1380 input->std = dev->vdev.tvnorms;
1381
1382 return 0;
1383 }
1384
1385 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1386 {
1387 struct au0828_dev *dev = video_drvdata(file);
1388
1389 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1390 dev->std_set_in_tuner_core, dev->dev_state);
1391
1392 *i = dev->ctrl_input;
1393 return 0;
1394 }
1395
1396 static void au0828_s_input(struct au0828_dev *dev, int index)
1397 {
1398 int i;
1399
1400 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1401 dev->std_set_in_tuner_core, dev->dev_state);
1402
1403 switch (AUVI_INPUT(index).type) {
1404 case AU0828_VMUX_SVIDEO:
1405 dev->input_type = AU0828_VMUX_SVIDEO;
1406 dev->ctrl_ainput = 1;
1407 break;
1408 case AU0828_VMUX_COMPOSITE:
1409 dev->input_type = AU0828_VMUX_COMPOSITE;
1410 dev->ctrl_ainput = 1;
1411 break;
1412 case AU0828_VMUX_TELEVISION:
1413 dev->input_type = AU0828_VMUX_TELEVISION;
1414 dev->ctrl_ainput = 0;
1415 break;
1416 default:
1417 dprintk(1, "unknown input type set [%d]\n",
1418 AUVI_INPUT(index).type);
1419 return;
1420 }
1421
1422 dev->ctrl_input = index;
1423
1424 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
1425 AUVI_INPUT(index).vmux, 0, 0);
1426
1427 for (i = 0; i < AU0828_MAX_INPUT; i++) {
1428 int enable = 0;
1429 if (AUVI_INPUT(i).audio_setup == NULL)
1430 continue;
1431
1432 if (i == index)
1433 enable = 1;
1434 else
1435 enable = 0;
1436 if (enable) {
1437 (AUVI_INPUT(i).audio_setup)(dev, enable);
1438 } else {
1439 /* Make sure we leave it turned on if some
1440 other input is routed to this callback */
1441 if ((AUVI_INPUT(i).audio_setup) !=
1442 ((AUVI_INPUT(index).audio_setup))) {
1443 (AUVI_INPUT(i).audio_setup)(dev, enable);
1444 }
1445 }
1446 }
1447
1448 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
1449 AUVI_INPUT(index).amux, 0, 0);
1450 }
1451
1452 static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
1453 {
1454 struct au0828_dev *dev = video_drvdata(file);
1455 struct video_device *vfd = video_devdata(file);
1456
1457 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
1458 index);
1459 if (index >= AU0828_MAX_INPUT)
1460 return -EINVAL;
1461 if (AUVI_INPUT(index).type == 0)
1462 return -EINVAL;
1463
1464 if (dev->ctrl_input == index)
1465 return 0;
1466
1467 au0828_s_input(dev, index);
1468
1469 /*
1470 * Input has been changed. Disable the media source
1471 * associated with the old input and enable source
1472 * for the newly set input
1473 */
1474 v4l_disable_media_source(vfd);
1475 return v4l_enable_media_source(vfd);
1476 }
1477
1478 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a)
1479 {
1480 if (a->index > 1)
1481 return -EINVAL;
1482
1483 dprintk(1, "%s called\n", __func__);
1484
1485 if (a->index == 0)
1486 strcpy(a->name, "Television");
1487 else
1488 strcpy(a->name, "Line in");
1489
1490 a->capability = V4L2_AUDCAP_STEREO;
1491 return 0;
1492 }
1493
1494 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1495 {
1496 struct au0828_dev *dev = video_drvdata(file);
1497
1498 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1499 dev->std_set_in_tuner_core, dev->dev_state);
1500
1501 a->index = dev->ctrl_ainput;
1502 if (a->index == 0)
1503 strcpy(a->name, "Television");
1504 else
1505 strcpy(a->name, "Line in");
1506
1507 a->capability = V4L2_AUDCAP_STEREO;
1508 return 0;
1509 }
1510
1511 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)
1512 {
1513 struct au0828_dev *dev = video_drvdata(file);
1514
1515 if (a->index != dev->ctrl_ainput)
1516 return -EINVAL;
1517
1518 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1519 dev->std_set_in_tuner_core, dev->dev_state);
1520 return 0;
1521 }
1522
1523 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1524 {
1525 struct au0828_dev *dev = video_drvdata(file);
1526 struct video_device *vfd = video_devdata(file);
1527 int ret;
1528
1529 if (t->index != 0)
1530 return -EINVAL;
1531
1532 ret = v4l_enable_media_source(vfd);
1533 if (ret)
1534 return ret;
1535
1536 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1537 dev->std_set_in_tuner_core, dev->dev_state);
1538
1539 strcpy(t->name, "Auvitek tuner");
1540
1541 au0828_init_tuner(dev);
1542 i2c_gate_ctrl(dev, 1);
1543 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1544 i2c_gate_ctrl(dev, 0);
1545 return 0;
1546 }
1547
1548 static int vidioc_s_tuner(struct file *file, void *priv,
1549 const struct v4l2_tuner *t)
1550 {
1551 struct au0828_dev *dev = video_drvdata(file);
1552
1553 if (t->index != 0)
1554 return -EINVAL;
1555
1556 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1557 dev->std_set_in_tuner_core, dev->dev_state);
1558
1559 au0828_init_tuner(dev);
1560 i2c_gate_ctrl(dev, 1);
1561 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1562 i2c_gate_ctrl(dev, 0);
1563
1564 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
1565 t->afc);
1566
1567 return 0;
1568
1569 }
1570
1571 static int vidioc_g_frequency(struct file *file, void *priv,
1572 struct v4l2_frequency *freq)
1573 {
1574 struct au0828_dev *dev = video_drvdata(file);
1575
1576 if (freq->tuner != 0)
1577 return -EINVAL;
1578 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1579 dev->std_set_in_tuner_core, dev->dev_state);
1580 freq->frequency = dev->ctrl_freq;
1581 return 0;
1582 }
1583
1584 static int vidioc_s_frequency(struct file *file, void *priv,
1585 const struct v4l2_frequency *freq)
1586 {
1587 struct au0828_dev *dev = video_drvdata(file);
1588 struct v4l2_frequency new_freq = *freq;
1589
1590 if (freq->tuner != 0)
1591 return -EINVAL;
1592
1593 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1594 dev->std_set_in_tuner_core, dev->dev_state);
1595
1596 au0828_init_tuner(dev);
1597 i2c_gate_ctrl(dev, 1);
1598
1599 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
1600 /* Get the actual set (and possibly clamped) frequency */
1601 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
1602 dev->ctrl_freq = new_freq.frequency;
1603
1604 i2c_gate_ctrl(dev, 0);
1605
1606 au0828_analog_stream_reset(dev);
1607
1608 return 0;
1609 }
1610
1611
1612 /* RAW VBI ioctls */
1613
1614 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1615 struct v4l2_format *format)
1616 {
1617 struct au0828_dev *dev = video_drvdata(file);
1618
1619 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1620 dev->std_set_in_tuner_core, dev->dev_state);
1621
1622 format->fmt.vbi.samples_per_line = dev->vbi_width;
1623 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1624 format->fmt.vbi.offset = 0;
1625 format->fmt.vbi.flags = 0;
1626 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
1627
1628 format->fmt.vbi.count[0] = dev->vbi_height;
1629 format->fmt.vbi.count[1] = dev->vbi_height;
1630 format->fmt.vbi.start[0] = 21;
1631 format->fmt.vbi.start[1] = 284;
1632 memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
1633
1634 return 0;
1635 }
1636
1637 static int vidioc_cropcap(struct file *file, void *priv,
1638 struct v4l2_cropcap *cc)
1639 {
1640 struct au0828_dev *dev = video_drvdata(file);
1641
1642 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1643 return -EINVAL;
1644
1645 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1646 dev->std_set_in_tuner_core, dev->dev_state);
1647
1648 cc->bounds.left = 0;
1649 cc->bounds.top = 0;
1650 cc->bounds.width = dev->width;
1651 cc->bounds.height = dev->height;
1652
1653 cc->defrect = cc->bounds;
1654
1655 cc->pixelaspect.numerator = 54;
1656 cc->pixelaspect.denominator = 59;
1657
1658 return 0;
1659 }
1660
1661 #ifdef CONFIG_VIDEO_ADV_DEBUG
1662 static int vidioc_g_register(struct file *file, void *priv,
1663 struct v4l2_dbg_register *reg)
1664 {
1665 struct au0828_dev *dev = video_drvdata(file);
1666
1667 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1668 dev->std_set_in_tuner_core, dev->dev_state);
1669
1670 reg->val = au0828_read(dev, reg->reg);
1671 reg->size = 1;
1672 return 0;
1673 }
1674
1675 static int vidioc_s_register(struct file *file, void *priv,
1676 const struct v4l2_dbg_register *reg)
1677 {
1678 struct au0828_dev *dev = video_drvdata(file);
1679
1680 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1681 dev->std_set_in_tuner_core, dev->dev_state);
1682
1683 return au0828_writereg(dev, reg->reg, reg->val);
1684 }
1685 #endif
1686
1687 static int vidioc_log_status(struct file *file, void *fh)
1688 {
1689 struct video_device *vdev = video_devdata(file);
1690
1691 dprintk(1, "%s called\n", __func__);
1692
1693 v4l2_ctrl_log_status(file, fh);
1694 v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status);
1695 return 0;
1696 }
1697
1698 void au0828_v4l2_suspend(struct au0828_dev *dev)
1699 {
1700 struct urb *urb;
1701 int i;
1702
1703 pr_info("stopping V4L2\n");
1704
1705 if (dev->stream_state == STREAM_ON) {
1706 pr_info("stopping V4L2 active URBs\n");
1707 au0828_analog_stream_disable(dev);
1708 /* stop urbs */
1709 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1710 urb = dev->isoc_ctl.urb[i];
1711 if (urb) {
1712 if (!irqs_disabled())
1713 usb_kill_urb(urb);
1714 else
1715 usb_unlink_urb(urb);
1716 }
1717 }
1718 }
1719
1720 if (dev->vid_timeout_running)
1721 del_timer_sync(&dev->vid_timeout);
1722 if (dev->vbi_timeout_running)
1723 del_timer_sync(&dev->vbi_timeout);
1724 }
1725
1726 void au0828_v4l2_resume(struct au0828_dev *dev)
1727 {
1728 int i, rc;
1729
1730 pr_info("restarting V4L2\n");
1731
1732 if (dev->stream_state == STREAM_ON) {
1733 au0828_stream_interrupt(dev);
1734 au0828_init_tuner(dev);
1735 }
1736
1737 if (dev->vid_timeout_running)
1738 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
1739 if (dev->vbi_timeout_running)
1740 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1741
1742 /* If we were doing ac97 instead of i2s, it would go here...*/
1743 au0828_i2s_init(dev);
1744
1745 au0828_analog_stream_enable(dev);
1746
1747 if (!(dev->stream_state == STREAM_ON)) {
1748 au0828_analog_stream_reset(dev);
1749 /* submit urbs */
1750 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1751 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
1752 if (rc) {
1753 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
1754 i, rc);
1755 au0828_uninit_isoc(dev);
1756 }
1757 }
1758 }
1759 }
1760
1761 static struct v4l2_file_operations au0828_v4l_fops = {
1762 .owner = THIS_MODULE,
1763 .open = au0828_v4l2_open,
1764 .release = au0828_v4l2_close,
1765 .read = vb2_fop_read,
1766 .poll = vb2_fop_poll,
1767 .mmap = vb2_fop_mmap,
1768 .unlocked_ioctl = video_ioctl2,
1769 };
1770
1771 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1772 .vidioc_querycap = vidioc_querycap,
1773 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1774 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1775 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1776 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1777 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1778 .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1779 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1780 .vidioc_enumaudio = vidioc_enumaudio,
1781 .vidioc_g_audio = vidioc_g_audio,
1782 .vidioc_s_audio = vidioc_s_audio,
1783 .vidioc_cropcap = vidioc_cropcap,
1784
1785 .vidioc_reqbufs = vb2_ioctl_reqbufs,
1786 .vidioc_create_bufs = vb2_ioctl_create_bufs,
1787 .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
1788 .vidioc_querybuf = vb2_ioctl_querybuf,
1789 .vidioc_qbuf = vb2_ioctl_qbuf,
1790 .vidioc_dqbuf = vb2_ioctl_dqbuf,
1791 .vidioc_expbuf = vb2_ioctl_expbuf,
1792
1793 .vidioc_s_std = vidioc_s_std,
1794 .vidioc_g_std = vidioc_g_std,
1795 .vidioc_enum_input = vidioc_enum_input,
1796 .vidioc_g_input = vidioc_g_input,
1797 .vidioc_s_input = vidioc_s_input,
1798
1799 .vidioc_streamon = vb2_ioctl_streamon,
1800 .vidioc_streamoff = vb2_ioctl_streamoff,
1801
1802 .vidioc_g_tuner = vidioc_g_tuner,
1803 .vidioc_s_tuner = vidioc_s_tuner,
1804 .vidioc_g_frequency = vidioc_g_frequency,
1805 .vidioc_s_frequency = vidioc_s_frequency,
1806 #ifdef CONFIG_VIDEO_ADV_DEBUG
1807 .vidioc_g_register = vidioc_g_register,
1808 .vidioc_s_register = vidioc_s_register,
1809 #endif
1810 .vidioc_log_status = vidioc_log_status,
1811 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1812 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1813 };
1814
1815 static const struct video_device au0828_video_template = {
1816 .fops = &au0828_v4l_fops,
1817 .release = video_device_release_empty,
1818 .ioctl_ops = &video_ioctl_ops,
1819 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M,
1820 };
1821
1822 static int au0828_vb2_setup(struct au0828_dev *dev)
1823 {
1824 int rc;
1825 struct vb2_queue *q;
1826
1827 /* Setup Videobuf2 for Video capture */
1828 q = &dev->vb_vidq;
1829 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1830 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1831 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1832 q->drv_priv = dev;
1833 q->buf_struct_size = sizeof(struct au0828_buffer);
1834 q->ops = &au0828_video_qops;
1835 q->mem_ops = &vb2_vmalloc_memops;
1836
1837 rc = vb2_queue_init(q);
1838 if (rc < 0)
1839 return rc;
1840
1841 /* Setup Videobuf2 for VBI capture */
1842 q = &dev->vb_vbiq;
1843 q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1844 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1845 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1846 q->drv_priv = dev;
1847 q->buf_struct_size = sizeof(struct au0828_buffer);
1848 q->ops = &au0828_vbi_qops;
1849 q->mem_ops = &vb2_vmalloc_memops;
1850
1851 rc = vb2_queue_init(q);
1852 if (rc < 0)
1853 return rc;
1854
1855 return 0;
1856 }
1857
1858 static void au0828_analog_create_entities(struct au0828_dev *dev)
1859 {
1860 #if defined(CONFIG_MEDIA_CONTROLLER)
1861 static const char * const inames[] = {
1862 [AU0828_VMUX_COMPOSITE] = "Composite",
1863 [AU0828_VMUX_SVIDEO] = "S-Video",
1864 [AU0828_VMUX_CABLE] = "Cable TV",
1865 [AU0828_VMUX_TELEVISION] = "Television",
1866 [AU0828_VMUX_DVB] = "DVB",
1867 };
1868 int ret, i;
1869
1870 /* Initialize Video and VBI pads */
1871 dev->video_pad.flags = MEDIA_PAD_FL_SINK;
1872 ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad);
1873 if (ret < 0)
1874 pr_err("failed to initialize video media entity!\n");
1875
1876 dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
1877 ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad);
1878 if (ret < 0)
1879 pr_err("failed to initialize vbi media entity!\n");
1880
1881 /* Create entities for each input connector */
1882 for (i = 0; i < AU0828_MAX_INPUT; i++) {
1883 struct media_entity *ent = &dev->input_ent[i];
1884
1885 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
1886 break;
1887
1888 ent->name = inames[AUVI_INPUT(i).type];
1889 ent->flags = MEDIA_ENT_FL_CONNECTOR;
1890 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
1891
1892 switch (AUVI_INPUT(i).type) {
1893 case AU0828_VMUX_COMPOSITE:
1894 ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
1895 break;
1896 case AU0828_VMUX_SVIDEO:
1897 ent->function = MEDIA_ENT_F_CONN_SVIDEO;
1898 break;
1899 case AU0828_VMUX_CABLE:
1900 case AU0828_VMUX_TELEVISION:
1901 case AU0828_VMUX_DVB:
1902 default: /* Just to shut up a warning */
1903 ent->function = MEDIA_ENT_F_CONN_RF;
1904 break;
1905 }
1906
1907 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
1908 if (ret < 0)
1909 pr_err("failed to initialize input pad[%d]!\n", i);
1910
1911 ret = media_device_register_entity(dev->media_dev, ent);
1912 if (ret < 0)
1913 pr_err("failed to register input entity %d!\n", i);
1914 }
1915 #endif
1916 }
1917
1918 /**************************************************************************/
1919
1920 int au0828_analog_register(struct au0828_dev *dev,
1921 struct usb_interface *interface)
1922 {
1923 int retval = -ENOMEM;
1924 struct usb_host_interface *iface_desc;
1925 struct usb_endpoint_descriptor *endpoint;
1926 int i, ret;
1927
1928 dprintk(1, "au0828_analog_register called for intf#%d!\n",
1929 interface->cur_altsetting->desc.bInterfaceNumber);
1930
1931 /* No analog TV */
1932 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
1933 return 0;
1934
1935 /* set au0828 usb interface0 to as5 */
1936 retval = usb_set_interface(dev->usbdev,
1937 interface->cur_altsetting->desc.bInterfaceNumber, 5);
1938 if (retval != 0) {
1939 pr_info("Failure setting usb interface0 to as5\n");
1940 return retval;
1941 }
1942
1943 /* Figure out which endpoint has the isoc interface */
1944 iface_desc = interface->cur_altsetting;
1945 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
1946 endpoint = &iface_desc->endpoint[i].desc;
1947 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1948 == USB_DIR_IN) &&
1949 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1950 == USB_ENDPOINT_XFER_ISOC)) {
1951
1952 /* we find our isoc in endpoint */
1953 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
1954 dev->max_pkt_size = (tmp & 0x07ff) *
1955 (((tmp & 0x1800) >> 11) + 1);
1956 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
1957 dprintk(1,
1958 "Found isoc endpoint 0x%02x, max size = %d\n",
1959 dev->isoc_in_endpointaddr, dev->max_pkt_size);
1960 }
1961 }
1962 if (!(dev->isoc_in_endpointaddr)) {
1963 pr_info("Could not locate isoc endpoint\n");
1964 return -ENODEV;
1965 }
1966
1967 init_waitqueue_head(&dev->open);
1968 spin_lock_init(&dev->slock);
1969
1970 /* init video dma queues */
1971 INIT_LIST_HEAD(&dev->vidq.active);
1972 INIT_LIST_HEAD(&dev->vbiq.active);
1973
1974 setup_timer(&dev->vid_timeout, au0828_vid_buffer_timeout,
1975 (unsigned long)dev);
1976 setup_timer(&dev->vbi_timeout, au0828_vbi_buffer_timeout,
1977 (unsigned long)dev);
1978
1979 dev->width = NTSC_STD_W;
1980 dev->height = NTSC_STD_H;
1981 dev->field_size = dev->width * dev->height;
1982 dev->frame_size = dev->field_size << 1;
1983 dev->bytesperline = dev->width << 1;
1984 dev->vbi_width = 720;
1985 dev->vbi_height = 1;
1986 dev->ctrl_ainput = 0;
1987 dev->ctrl_freq = 960;
1988 dev->std = V4L2_STD_NTSC_M;
1989 /* Default input is TV Tuner */
1990 au0828_s_input(dev, 0);
1991
1992 mutex_init(&dev->vb_queue_lock);
1993 mutex_init(&dev->vb_vbi_queue_lock);
1994
1995 /* Fill the video capture device struct */
1996 dev->vdev = au0828_video_template;
1997 dev->vdev.v4l2_dev = &dev->v4l2_dev;
1998 dev->vdev.lock = &dev->lock;
1999 dev->vdev.queue = &dev->vb_vidq;
2000 dev->vdev.queue->lock = &dev->vb_queue_lock;
2001 strcpy(dev->vdev.name, "au0828a video");
2002
2003 /* Setup the VBI device */
2004 dev->vbi_dev = au0828_video_template;
2005 dev->vbi_dev.v4l2_dev = &dev->v4l2_dev;
2006 dev->vbi_dev.lock = &dev->lock;
2007 dev->vbi_dev.queue = &dev->vb_vbiq;
2008 dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock;
2009 strcpy(dev->vbi_dev.name, "au0828a vbi");
2010
2011 /* Init entities at the Media Controller */
2012 au0828_analog_create_entities(dev);
2013
2014 /* initialize videobuf2 stuff */
2015 retval = au0828_vb2_setup(dev);
2016 if (retval != 0) {
2017 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n",
2018 retval);
2019 return -ENODEV;
2020 }
2021
2022 /* Register the v4l2 device */
2023 video_set_drvdata(&dev->vdev, dev);
2024 retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1);
2025 if (retval != 0) {
2026 dprintk(1, "unable to register video device (error = %d).\n",
2027 retval);
2028 ret = -ENODEV;
2029 goto err_reg_vdev;
2030 }
2031
2032 /* Register the vbi device */
2033 video_set_drvdata(&dev->vbi_dev, dev);
2034 retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1);
2035 if (retval != 0) {
2036 dprintk(1, "unable to register vbi device (error = %d).\n",
2037 retval);
2038 ret = -ENODEV;
2039 goto err_reg_vbi_dev;
2040 }
2041
2042 #ifdef CONFIG_MEDIA_CONTROLLER
2043 retval = v4l2_mc_create_media_graph(dev->media_dev);
2044 if (retval) {
2045 pr_err("%s() au0282_dev_register failed to create graph\n",
2046 __func__);
2047 ret = -ENODEV;
2048 goto err_reg_vbi_dev;
2049 }
2050 #endif
2051
2052 dprintk(1, "%s completed!\n", __func__);
2053
2054 return 0;
2055
2056 err_reg_vbi_dev:
2057 video_unregister_device(&dev->vdev);
2058 err_reg_vdev:
2059 vb2_queue_release(&dev->vb_vidq);
2060 vb2_queue_release(&dev->vb_vbiq);
2061 return ret;
2062 }
2063
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