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Linux 4.19.133
[linux/fpc-iii.git] / drivers / media / usb / au0828 / au0828-video.c
blob3e111f7f56dfeecee01350866c325ba5bcf55874
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
18 /* Developer Notes:
19 *
20 * The hardware scaler supported is unimplemented
21 * AC97 audio support is unimplemented (only i2s audio mode)
22 *
23 */
24
25 #include "au0828.h"
26 #include "au8522.h"
27
28 #include <linux/module.h>
29 #include <linux/slab.h>
30 #include <linux/init.h>
31 #include <linux/device.h>
32 #include <media/v4l2-common.h>
33 #include <media/v4l2-mc.h>
34 #include <media/v4l2-ioctl.h>
35 #include <media/v4l2-event.h>
36 #include <media/tuner.h>
37 #include "au0828-reg.h"
38
39 static DEFINE_MUTEX(au0828_sysfs_lock);
40
41 /* ------------------------------------------------------------------
42 Videobuf operations
43 ------------------------------------------------------------------*/
44
45 static unsigned int isoc_debug;
46 module_param(isoc_debug, int, 0644);
47 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
48
49 #define au0828_isocdbg(fmt, arg...) \
50 do {\
51 if (isoc_debug) { \
52 pr_info("au0828 %s :"fmt, \
53 __func__ , ##arg); \
54 } \
55 } while (0)
56
57 static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val)
58 {
59 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
60 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val);
61 }
62
63 static inline void print_err_status(struct au0828_dev *dev,
64 int packet, int status)
65 {
66 char *errmsg = "Unknown";
67
68 switch (status) {
69 case -ENOENT:
70 errmsg = "unlinked synchronously";
71 break;
72 case -ECONNRESET:
73 errmsg = "unlinked asynchronously";
74 break;
75 case -ENOSR:
76 errmsg = "Buffer error (overrun)";
77 break;
78 case -EPIPE:
79 errmsg = "Stalled (device not responding)";
80 break;
81 case -EOVERFLOW:
82 errmsg = "Babble (bad cable?)";
83 break;
84 case -EPROTO:
85 errmsg = "Bit-stuff error (bad cable?)";
86 break;
87 case -EILSEQ:
88 errmsg = "CRC/Timeout (could be anything)";
89 break;
90 case -ETIME:
91 errmsg = "Device does not respond";
92 break;
93 }
94 if (packet < 0) {
95 au0828_isocdbg("URB status %d [%s].\n", status, errmsg);
96 } else {
97 au0828_isocdbg("URB packet %d, status %d [%s].\n",
98 packet, status, errmsg);
99 }
100 }
101
102 static int check_dev(struct au0828_dev *dev)
103 {
104 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) {
105 pr_info("v4l2 ioctl: device not present\n");
106 return -ENODEV;
107 }
108
109 if (test_bit(DEV_MISCONFIGURED, &dev->dev_state)) {
110 pr_info("v4l2 ioctl: device is misconfigured; close and open it again\n");
111 return -EIO;
112 }
113 return 0;
114 }
115
116 /*
117 * IRQ callback, called by URB callback
118 */
119 static void au0828_irq_callback(struct urb *urb)
120 {
121 struct au0828_dmaqueue *dma_q = urb->context;
122 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
123 unsigned long flags = 0;
124 int i;
125
126 switch (urb->status) {
127 case 0: /* success */
128 case -ETIMEDOUT: /* NAK */
129 break;
130 case -ECONNRESET: /* kill */
131 case -ENOENT:
132 case -ESHUTDOWN:
133 au0828_isocdbg("au0828_irq_callback called: status kill\n");
134 return;
135 default: /* unknown error */
136 au0828_isocdbg("urb completion error %d.\n", urb->status);
137 break;
138 }
139
140 /* Copy data from URB */
141 spin_lock_irqsave(&dev->slock, flags);
142 dev->isoc_ctl.isoc_copy(dev, urb);
143 spin_unlock_irqrestore(&dev->slock, flags);
144
145 /* Reset urb buffers */
146 for (i = 0; i < urb->number_of_packets; i++) {
147 urb->iso_frame_desc[i].status = 0;
148 urb->iso_frame_desc[i].actual_length = 0;
149 }
150 urb->status = 0;
151
152 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
153 if (urb->status) {
154 au0828_isocdbg("urb resubmit failed (error=%i)\n",
155 urb->status);
156 }
157 dev->stream_state = STREAM_ON;
158 }
159
160 /*
161 * Stop and Deallocate URBs
162 */
163 static void au0828_uninit_isoc(struct au0828_dev *dev)
164 {
165 struct urb *urb;
166 int i;
167
168 au0828_isocdbg("au0828: called au0828_uninit_isoc\n");
169
170 dev->isoc_ctl.nfields = -1;
171 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
172 urb = dev->isoc_ctl.urb[i];
173 if (urb) {
174 if (!irqs_disabled())
175 usb_kill_urb(urb);
176 else
177 usb_unlink_urb(urb);
178
179 if (dev->isoc_ctl.transfer_buffer[i]) {
180 usb_free_coherent(dev->usbdev,
181 urb->transfer_buffer_length,
182 dev->isoc_ctl.transfer_buffer[i],
183 urb->transfer_dma);
184 }
185 usb_free_urb(urb);
186 dev->isoc_ctl.urb[i] = NULL;
187 }
188 dev->isoc_ctl.transfer_buffer[i] = NULL;
189 }
190
191 kfree(dev->isoc_ctl.urb);
192 kfree(dev->isoc_ctl.transfer_buffer);
193
194 dev->isoc_ctl.urb = NULL;
195 dev->isoc_ctl.transfer_buffer = NULL;
196 dev->isoc_ctl.num_bufs = 0;
197
198 dev->stream_state = STREAM_OFF;
199 }
200
201 /*
202 * Allocate URBs and start IRQ
203 */
204 static int au0828_init_isoc(struct au0828_dev *dev, int max_packets,
205 int num_bufs, int max_pkt_size,
206 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb))
207 {
208 struct au0828_dmaqueue *dma_q = &dev->vidq;
209 int i;
210 int sb_size, pipe;
211 struct urb *urb;
212 int j, k;
213 int rc;
214
215 au0828_isocdbg("au0828: called au0828_prepare_isoc\n");
216
217 dev->isoc_ctl.isoc_copy = isoc_copy;
218 dev->isoc_ctl.num_bufs = num_bufs;
219
220 dev->isoc_ctl.urb = kcalloc(num_bufs, sizeof(void *), GFP_KERNEL);
221 if (!dev->isoc_ctl.urb) {
222 au0828_isocdbg("cannot alloc memory for usb buffers\n");
223 return -ENOMEM;
224 }
225
226 dev->isoc_ctl.transfer_buffer = kcalloc(num_bufs, sizeof(void *),
227 GFP_KERNEL);
228 if (!dev->isoc_ctl.transfer_buffer) {
229 au0828_isocdbg("cannot allocate memory for usb transfer\n");
230 kfree(dev->isoc_ctl.urb);
231 return -ENOMEM;
232 }
233
234 dev->isoc_ctl.max_pkt_size = max_pkt_size;
235 dev->isoc_ctl.buf = NULL;
236
237 sb_size = max_packets * dev->isoc_ctl.max_pkt_size;
238
239 /* allocate urbs and transfer buffers */
240 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
241 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
242 if (!urb) {
243 au0828_uninit_isoc(dev);
244 return -ENOMEM;
245 }
246 dev->isoc_ctl.urb[i] = urb;
247
248 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev,
249 sb_size, GFP_KERNEL, &urb->transfer_dma);
250 if (!dev->isoc_ctl.transfer_buffer[i]) {
251 printk("unable to allocate %i bytes for transfer buffer %i%s\n",
252 sb_size, i,
253 in_interrupt() ? " while in int" : "");
254 au0828_uninit_isoc(dev);
255 return -ENOMEM;
256 }
257 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
258
259 pipe = usb_rcvisocpipe(dev->usbdev,
260 dev->isoc_in_endpointaddr),
261
262 usb_fill_int_urb(urb, dev->usbdev, pipe,
263 dev->isoc_ctl.transfer_buffer[i], sb_size,
264 au0828_irq_callback, dma_q, 1);
265
266 urb->number_of_packets = max_packets;
267 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
268
269 k = 0;
270 for (j = 0; j < max_packets; j++) {
271 urb->iso_frame_desc[j].offset = k;
272 urb->iso_frame_desc[j].length =
273 dev->isoc_ctl.max_pkt_size;
274 k += dev->isoc_ctl.max_pkt_size;
275 }
276 }
277
278 /* submit urbs and enables IRQ */
279 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
280 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
281 if (rc) {
282 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
283 i, rc);
284 au0828_uninit_isoc(dev);
285 return rc;
286 }
287 }
288
289 return 0;
290 }
291
292 /*
293 * Announces that a buffer were filled and request the next
294 */
295 static inline void buffer_filled(struct au0828_dev *dev,
296 struct au0828_dmaqueue *dma_q,
297 struct au0828_buffer *buf)
298 {
299 struct vb2_v4l2_buffer *vb = &buf->vb;
300 struct vb2_queue *q = vb->vb2_buf.vb2_queue;
301
302 /* Advice that buffer was filled */
303 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field);
304
305 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
306 vb->sequence = dev->frame_count++;
307 else
308 vb->sequence = dev->vbi_frame_count++;
309
310 vb->field = V4L2_FIELD_INTERLACED;
311 vb->vb2_buf.timestamp = ktime_get_ns();
312 vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE);
313 }
314
315 /*
316 * Identify the buffer header type and properly handles
317 */
318 static void au0828_copy_video(struct au0828_dev *dev,
319 struct au0828_dmaqueue *dma_q,
320 struct au0828_buffer *buf,
321 unsigned char *p,
322 unsigned char *outp, unsigned long len)
323 {
324 void *fieldstart, *startwrite, *startread;
325 int linesdone, currlinedone, offset, lencopy, remain;
326 int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */
327
328 if (len == 0)
329 return;
330
331 if (dma_q->pos + len > buf->length)
332 len = buf->length - dma_q->pos;
333
334 startread = p;
335 remain = len;
336
337 /* Interlaces frame */
338 if (buf->top_field)
339 fieldstart = outp;
340 else
341 fieldstart = outp + bytesperline;
342
343 linesdone = dma_q->pos / bytesperline;
344 currlinedone = dma_q->pos % bytesperline;
345 offset = linesdone * bytesperline * 2 + currlinedone;
346 startwrite = fieldstart + offset;
347 lencopy = bytesperline - currlinedone;
348 lencopy = lencopy > remain ? remain : lencopy;
349
350 if ((char *)startwrite + lencopy > (char *)outp + buf->length) {
351 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
352 ((char *)startwrite + lencopy) -
353 ((char *)outp + buf->length));
354 remain = (char *)outp + buf->length - (char *)startwrite;
355 lencopy = remain;
356 }
357 if (lencopy <= 0)
358 return;
359 memcpy(startwrite, startread, lencopy);
360
361 remain -= lencopy;
362
363 while (remain > 0) {
364 startwrite += lencopy + bytesperline;
365 startread += lencopy;
366 if (bytesperline > remain)
367 lencopy = remain;
368 else
369 lencopy = bytesperline;
370
371 if ((char *)startwrite + lencopy > (char *)outp +
372 buf->length) {
373 au0828_isocdbg("Overflow %zi bytes past buf end (2)\n",
374 ((char *)startwrite + lencopy) -
375 ((char *)outp + buf->length));
376 lencopy = remain = (char *)outp + buf->length -
377 (char *)startwrite;
378 }
379 if (lencopy <= 0)
380 break;
381
382 memcpy(startwrite, startread, lencopy);
383
384 remain -= lencopy;
385 }
386
387 if (offset > 1440) {
388 /* We have enough data to check for greenscreen */
389 if (outp[0] < 0x60 && outp[1440] < 0x60)
390 dev->greenscreen_detected = 1;
391 }
392
393 dma_q->pos += len;
394 }
395
396 /*
397 * video-buf generic routine to get the next available buffer
398 */
399 static inline void get_next_buf(struct au0828_dmaqueue *dma_q,
400 struct au0828_buffer **buf)
401 {
402 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
403
404 if (list_empty(&dma_q->active)) {
405 au0828_isocdbg("No active queue to serve\n");
406 dev->isoc_ctl.buf = NULL;
407 *buf = NULL;
408 return;
409 }
410
411 /* Get the next buffer */
412 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
413 /* Cleans up buffer - Useful for testing for frame/URB loss */
414 list_del(&(*buf)->list);
415 dma_q->pos = 0;
416 (*buf)->vb_buf = (*buf)->mem;
417 dev->isoc_ctl.buf = *buf;
418
419 return;
420 }
421
422 static void au0828_copy_vbi(struct au0828_dev *dev,
423 struct au0828_dmaqueue *dma_q,
424 struct au0828_buffer *buf,
425 unsigned char *p,
426 unsigned char *outp, unsigned long len)
427 {
428 unsigned char *startwrite, *startread;
429 int bytesperline;
430 int i, j = 0;
431
432 if (dev == NULL) {
433 au0828_isocdbg("dev is null\n");
434 return;
435 }
436
437 if (dma_q == NULL) {
438 au0828_isocdbg("dma_q is null\n");
439 return;
440 }
441 if (buf == NULL)
442 return;
443 if (p == NULL) {
444 au0828_isocdbg("p is null\n");
445 return;
446 }
447 if (outp == NULL) {
448 au0828_isocdbg("outp is null\n");
449 return;
450 }
451
452 bytesperline = dev->vbi_width;
453
454 if (dma_q->pos + len > buf->length)
455 len = buf->length - dma_q->pos;
456
457 startread = p;
458 startwrite = outp + (dma_q->pos / 2);
459
460 /* Make sure the bottom field populates the second half of the frame */
461 if (buf->top_field == 0)
462 startwrite += bytesperline * dev->vbi_height;
463
464 for (i = 0; i < len; i += 2)
465 startwrite[j++] = startread[i+1];
466
467 dma_q->pos += len;
468 }
469
470
471 /*
472 * video-buf generic routine to get the next available VBI buffer
473 */
474 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q,
475 struct au0828_buffer **buf)
476 {
477 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq);
478
479 if (list_empty(&dma_q->active)) {
480 au0828_isocdbg("No active queue to serve\n");
481 dev->isoc_ctl.vbi_buf = NULL;
482 *buf = NULL;
483 return;
484 }
485
486 /* Get the next buffer */
487 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
488 /* Cleans up buffer - Useful for testing for frame/URB loss */
489 list_del(&(*buf)->list);
490 dma_q->pos = 0;
491 (*buf)->vb_buf = (*buf)->mem;
492 dev->isoc_ctl.vbi_buf = *buf;
493 return;
494 }
495
496 /*
497 * Controls the isoc copy of each urb packet
498 */
499 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
500 {
501 struct au0828_buffer *buf;
502 struct au0828_buffer *vbi_buf;
503 struct au0828_dmaqueue *dma_q = urb->context;
504 struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq;
505 unsigned char *outp = NULL;
506 unsigned char *vbioutp = NULL;
507 int i, len = 0, rc = 1;
508 unsigned char *p;
509 unsigned char fbyte;
510 unsigned int vbi_field_size;
511 unsigned int remain, lencopy;
512
513 if (!dev)
514 return 0;
515
516 if (test_bit(DEV_DISCONNECTED, &dev->dev_state) ||
517 test_bit(DEV_MISCONFIGURED, &dev->dev_state))
518 return 0;
519
520 if (urb->status < 0) {
521 print_err_status(dev, -1, urb->status);
522 if (urb->status == -ENOENT)
523 return 0;
524 }
525
526 buf = dev->isoc_ctl.buf;
527 if (buf != NULL)
528 outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
529
530 vbi_buf = dev->isoc_ctl.vbi_buf;
531 if (vbi_buf != NULL)
532 vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0);
533
534 for (i = 0; i < urb->number_of_packets; i++) {
535 int status = urb->iso_frame_desc[i].status;
536
537 if (status < 0) {
538 print_err_status(dev, i, status);
539 if (urb->iso_frame_desc[i].status != -EPROTO)
540 continue;
541 }
542
543 if (urb->iso_frame_desc[i].actual_length <= 0)
544 continue;
545
546 if (urb->iso_frame_desc[i].actual_length >
547 dev->max_pkt_size) {
548 au0828_isocdbg("packet bigger than packet size");
549 continue;
550 }
551
552 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
553 fbyte = p[0];
554 len = urb->iso_frame_desc[i].actual_length - 4;
555 p += 4;
556
557 if (fbyte & 0x80) {
558 len -= 4;
559 p += 4;
560 au0828_isocdbg("Video frame %s\n",
561 (fbyte & 0x40) ? "odd" : "even");
562 if (fbyte & 0x40) {
563 /* VBI */
564 if (vbi_buf != NULL)
565 buffer_filled(dev, vbi_dma_q, vbi_buf);
566 vbi_get_next_buf(vbi_dma_q, &vbi_buf);
567 if (vbi_buf == NULL)
568 vbioutp = NULL;
569 else
570 vbioutp = vb2_plane_vaddr(
571 &vbi_buf->vb.vb2_buf, 0);
572
573 /* Video */
574 if (buf != NULL)
575 buffer_filled(dev, dma_q, buf);
576 get_next_buf(dma_q, &buf);
577 if (buf == NULL)
578 outp = NULL;
579 else
580 outp = vb2_plane_vaddr(
581 &buf->vb.vb2_buf, 0);
582
583 /* As long as isoc traffic is arriving, keep
584 resetting the timer */
585 if (dev->vid_timeout_running)
586 mod_timer(&dev->vid_timeout,
587 jiffies + (HZ / 10));
588 if (dev->vbi_timeout_running)
589 mod_timer(&dev->vbi_timeout,
590 jiffies + (HZ / 10));
591 }
592
593 if (buf != NULL) {
594 if (fbyte & 0x40)
595 buf->top_field = 1;
596 else
597 buf->top_field = 0;
598 }
599
600 if (vbi_buf != NULL) {
601 if (fbyte & 0x40)
602 vbi_buf->top_field = 1;
603 else
604 vbi_buf->top_field = 0;
605 }
606
607 dev->vbi_read = 0;
608 vbi_dma_q->pos = 0;
609 dma_q->pos = 0;
610 }
611
612 vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
613 if (dev->vbi_read < vbi_field_size) {
614 remain = vbi_field_size - dev->vbi_read;
615 if (len < remain)
616 lencopy = len;
617 else
618 lencopy = remain;
619
620 if (vbi_buf != NULL)
621 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
622 vbioutp, len);
623
624 len -= lencopy;
625 p += lencopy;
626 dev->vbi_read += lencopy;
627 }
628
629 if (dev->vbi_read >= vbi_field_size && buf != NULL)
630 au0828_copy_video(dev, dma_q, buf, p, outp, len);
631 }
632 return rc;
633 }
634
635 void au0828_usb_v4l2_media_release(struct au0828_dev *dev)
636 {
637 #ifdef CONFIG_MEDIA_CONTROLLER
638 int i;
639
640 for (i = 0; i < AU0828_MAX_INPUT; i++) {
641 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
642 return;
643 media_device_unregister_entity(&dev->input_ent[i]);
644 }
645 #endif
646 }
647
648 static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev)
649 {
650 struct au0828_dev *dev =
651 container_of(v4l2_dev, struct au0828_dev, v4l2_dev);
652
653 v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl);
654 v4l2_device_unregister(&dev->v4l2_dev);
655 au0828_usb_v4l2_media_release(dev);
656 au0828_usb_release(dev);
657 }
658
659 int au0828_v4l2_device_register(struct usb_interface *interface,
660 struct au0828_dev *dev)
661 {
662 int retval;
663
664 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
665 return 0;
666
667 /* Create the v4l2_device */
668 #ifdef CONFIG_MEDIA_CONTROLLER
669 dev->v4l2_dev.mdev = dev->media_dev;
670 #endif
671 retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
672 if (retval) {
673 pr_err("%s() v4l2_device_register failed\n",
674 __func__);
675 return retval;
676 }
677
678 dev->v4l2_dev.release = au0828_usb_v4l2_release;
679
680 /* This control handler will inherit the controls from au8522 */
681 retval = v4l2_ctrl_handler_init(&dev->v4l2_ctrl_hdl, 4);
682 if (retval) {
683 pr_err("%s() v4l2_ctrl_handler_init failed\n",
684 __func__);
685 return retval;
686 }
687 dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl;
688
689 return 0;
690 }
691
692 static int queue_setup(struct vb2_queue *vq,
693 unsigned int *nbuffers, unsigned int *nplanes,
694 unsigned int sizes[], struct device *alloc_devs[])
695 {
696 struct au0828_dev *dev = vb2_get_drv_priv(vq);
697 unsigned long size = dev->height * dev->bytesperline;
698
699 if (*nplanes)
700 return sizes[0] < size ? -EINVAL : 0;
701 *nplanes = 1;
702 sizes[0] = size;
703 return 0;
704 }
705
706 static int
707 buffer_prepare(struct vb2_buffer *vb)
708 {
709 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
710 struct au0828_buffer *buf = container_of(vbuf,
711 struct au0828_buffer, vb);
712 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
713
714 buf->length = dev->height * dev->bytesperline;
715
716 if (vb2_plane_size(vb, 0) < buf->length) {
717 pr_err("%s data will not fit into plane (%lu < %lu)\n",
718 __func__, vb2_plane_size(vb, 0), buf->length);
719 return -EINVAL;
720 }
721 vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length);
722 return 0;
723 }
724
725 static void
726 buffer_queue(struct vb2_buffer *vb)
727 {
728 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
729 struct au0828_buffer *buf = container_of(vbuf,
730 struct au0828_buffer,
731 vb);
732 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
733 struct au0828_dmaqueue *vidq = &dev->vidq;
734 unsigned long flags = 0;
735
736 buf->mem = vb2_plane_vaddr(vb, 0);
737 buf->length = vb2_plane_size(vb, 0);
738
739 spin_lock_irqsave(&dev->slock, flags);
740 list_add_tail(&buf->list, &vidq->active);
741 spin_unlock_irqrestore(&dev->slock, flags);
742 }
743
744 static int au0828_i2s_init(struct au0828_dev *dev)
745 {
746 /* Enable i2s mode */
747 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
748 return 0;
749 }
750
751 /*
752 * Auvitek au0828 analog stream enable
753 */
754 static int au0828_analog_stream_enable(struct au0828_dev *d)
755 {
756 struct usb_interface *iface;
757 int ret, h, w;
758
759 dprintk(1, "au0828_analog_stream_enable called\n");
760
761 if (test_bit(DEV_DISCONNECTED, &d->dev_state))
762 return -ENODEV;
763
764 iface = usb_ifnum_to_if(d->usbdev, 0);
765 if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) {
766 dprintk(1, "Changing intf#0 to alt 5\n");
767 /* set au0828 interface0 to AS5 here again */
768 ret = usb_set_interface(d->usbdev, 0, 5);
769 if (ret < 0) {
770 pr_info("Au0828 can't set alt setting to 5!\n");
771 return -EBUSY;
772 }
773 }
774
775 h = d->height / 2 + 2;
776 w = d->width * 2;
777
778 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
779 au0828_writereg(d, 0x106, 0x00);
780 /* set x position */
781 au0828_writereg(d, 0x110, 0x00);
782 au0828_writereg(d, 0x111, 0x00);
783 au0828_writereg(d, 0x114, w & 0xff);
784 au0828_writereg(d, 0x115, w >> 8);
785 /* set y position */
786 au0828_writereg(d, 0x112, 0x00);
787 au0828_writereg(d, 0x113, 0x00);
788 au0828_writereg(d, 0x116, h & 0xff);
789 au0828_writereg(d, 0x117, h >> 8);
790 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
791
792 return 0;
793 }
794
795 static int au0828_analog_stream_disable(struct au0828_dev *d)
796 {
797 dprintk(1, "au0828_analog_stream_disable called\n");
798 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
799 return 0;
800 }
801
802 static void au0828_analog_stream_reset(struct au0828_dev *dev)
803 {
804 dprintk(1, "au0828_analog_stream_reset called\n");
805 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
806 mdelay(30);
807 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
808 }
809
810 /*
811 * Some operations needs to stop current streaming
812 */
813 static int au0828_stream_interrupt(struct au0828_dev *dev)
814 {
815 dev->stream_state = STREAM_INTERRUPT;
816 if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
817 return -ENODEV;
818 return 0;
819 }
820
821 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
822 {
823 struct au0828_dev *dev = vb2_get_drv_priv(vq);
824 int rc = 0;
825
826 dprintk(1, "au0828_start_analog_streaming called %d\n",
827 dev->streaming_users);
828
829 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
830 dev->frame_count = 0;
831 else
832 dev->vbi_frame_count = 0;
833
834 if (dev->streaming_users == 0) {
835 /* If we were doing ac97 instead of i2s, it would go here...*/
836 au0828_i2s_init(dev);
837 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
838 AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
839 au0828_isoc_copy);
840 if (rc < 0) {
841 pr_info("au0828_init_isoc failed\n");
842 return rc;
843 }
844
845 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 1);
846
847 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
848 dev->vid_timeout_running = 1;
849 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
850 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
851 dev->vbi_timeout_running = 1;
852 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
853 }
854 }
855 dev->streaming_users++;
856 return rc;
857 }
858
859 static void au0828_stop_streaming(struct vb2_queue *vq)
860 {
861 struct au0828_dev *dev = vb2_get_drv_priv(vq);
862 struct au0828_dmaqueue *vidq = &dev->vidq;
863 unsigned long flags = 0;
864
865 dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users);
866
867 if (dev->streaming_users-- == 1) {
868 au0828_uninit_isoc(dev);
869 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
870 }
871
872 dev->vid_timeout_running = 0;
873 del_timer_sync(&dev->vid_timeout);
874
875 spin_lock_irqsave(&dev->slock, flags);
876 if (dev->isoc_ctl.buf != NULL) {
877 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf,
878 VB2_BUF_STATE_ERROR);
879 dev->isoc_ctl.buf = NULL;
880 }
881 while (!list_empty(&vidq->active)) {
882 struct au0828_buffer *buf;
883
884 buf = list_entry(vidq->active.next, struct au0828_buffer, list);
885 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
886 list_del(&buf->list);
887 }
888 spin_unlock_irqrestore(&dev->slock, flags);
889 }
890
891 void au0828_stop_vbi_streaming(struct vb2_queue *vq)
892 {
893 struct au0828_dev *dev = vb2_get_drv_priv(vq);
894 struct au0828_dmaqueue *vbiq = &dev->vbiq;
895 unsigned long flags = 0;
896
897 dprintk(1, "au0828_stop_vbi_streaming called %d\n",
898 dev->streaming_users);
899
900 if (dev->streaming_users-- == 1) {
901 au0828_uninit_isoc(dev);
902 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
903 }
904
905 spin_lock_irqsave(&dev->slock, flags);
906 if (dev->isoc_ctl.vbi_buf != NULL) {
907 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf,
908 VB2_BUF_STATE_ERROR);
909 dev->isoc_ctl.vbi_buf = NULL;
910 }
911 while (!list_empty(&vbiq->active)) {
912 struct au0828_buffer *buf;
913
914 buf = list_entry(vbiq->active.next, struct au0828_buffer, list);
915 list_del(&buf->list);
916 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
917 }
918 spin_unlock_irqrestore(&dev->slock, flags);
919
920 dev->vbi_timeout_running = 0;
921 del_timer_sync(&dev->vbi_timeout);
922 }
923
924 static const struct vb2_ops au0828_video_qops = {
925 .queue_setup = queue_setup,
926 .buf_prepare = buffer_prepare,
927 .buf_queue = buffer_queue,
928 .start_streaming = au0828_start_analog_streaming,
929 .stop_streaming = au0828_stop_streaming,
930 .wait_prepare = vb2_ops_wait_prepare,
931 .wait_finish = vb2_ops_wait_finish,
932 };
933
934 /* ------------------------------------------------------------------
935 V4L2 interface
936 ------------------------------------------------------------------*/
937 /*
938 * au0828_analog_unregister
939 * unregister v4l2 devices
940 */
941 int au0828_analog_unregister(struct au0828_dev *dev)
942 {
943 dprintk(1, "au0828_analog_unregister called\n");
944
945 /* No analog TV */
946 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
947 return 0;
948
949 mutex_lock(&au0828_sysfs_lock);
950 video_unregister_device(&dev->vdev);
951 video_unregister_device(&dev->vbi_dev);
952 mutex_unlock(&au0828_sysfs_lock);
953
954 v4l2_device_disconnect(&dev->v4l2_dev);
955 v4l2_device_put(&dev->v4l2_dev);
956
957 return 1;
958 }
959
960 /* This function ensures that video frames continue to be delivered even if
961 the ITU-656 input isn't receiving any data (thereby preventing applications
962 such as tvtime from hanging) */
963 static void au0828_vid_buffer_timeout(struct timer_list *t)
964 {
965 struct au0828_dev *dev = from_timer(dev, t, vid_timeout);
966 struct au0828_dmaqueue *dma_q = &dev->vidq;
967 struct au0828_buffer *buf;
968 unsigned char *vid_data;
969 unsigned long flags = 0;
970
971 spin_lock_irqsave(&dev->slock, flags);
972
973 buf = dev->isoc_ctl.buf;
974 if (buf != NULL) {
975 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
976 memset(vid_data, 0x00, buf->length); /* Blank green frame */
977 buffer_filled(dev, dma_q, buf);
978 }
979 get_next_buf(dma_q, &buf);
980
981 if (dev->vid_timeout_running == 1)
982 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
983
984 spin_unlock_irqrestore(&dev->slock, flags);
985 }
986
987 static void au0828_vbi_buffer_timeout(struct timer_list *t)
988 {
989 struct au0828_dev *dev = from_timer(dev, t, vbi_timeout);
990 struct au0828_dmaqueue *dma_q = &dev->vbiq;
991 struct au0828_buffer *buf;
992 unsigned char *vbi_data;
993 unsigned long flags = 0;
994
995 spin_lock_irqsave(&dev->slock, flags);
996
997 buf = dev->isoc_ctl.vbi_buf;
998 if (buf != NULL) {
999 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
1000 memset(vbi_data, 0x00, buf->length);
1001 buffer_filled(dev, dma_q, buf);
1002 }
1003 vbi_get_next_buf(dma_q, &buf);
1004
1005 if (dev->vbi_timeout_running == 1)
1006 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1007 spin_unlock_irqrestore(&dev->slock, flags);
1008 }
1009
1010 static int au0828_v4l2_open(struct file *filp)
1011 {
1012 struct au0828_dev *dev = video_drvdata(filp);
1013 int ret;
1014
1015 dprintk(1,
1016 "%s called std_set %d dev_state %ld stream users %d users %d\n",
1017 __func__, dev->std_set_in_tuner_core, dev->dev_state,
1018 dev->streaming_users, dev->users);
1019
1020 if (mutex_lock_interruptible(&dev->lock))
1021 return -ERESTARTSYS;
1022
1023 ret = v4l2_fh_open(filp);
1024 if (ret) {
1025 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n",
1026 __func__, ret);
1027 mutex_unlock(&dev->lock);
1028 return ret;
1029 }
1030
1031 if (dev->users == 0) {
1032 au0828_analog_stream_enable(dev);
1033 au0828_analog_stream_reset(dev);
1034 dev->stream_state = STREAM_OFF;
1035 set_bit(DEV_INITIALIZED, &dev->dev_state);
1036 }
1037 dev->users++;
1038 mutex_unlock(&dev->lock);
1039 return ret;
1040 }
1041
1042 static int au0828_v4l2_close(struct file *filp)
1043 {
1044 int ret;
1045 struct au0828_dev *dev = video_drvdata(filp);
1046 struct video_device *vdev = video_devdata(filp);
1047
1048 dprintk(1,
1049 "%s called std_set %d dev_state %ld stream users %d users %d\n",
1050 __func__, dev->std_set_in_tuner_core, dev->dev_state,
1051 dev->streaming_users, dev->users);
1052
1053 mutex_lock(&dev->lock);
1054 if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) {
1055 /* Cancel timeout thread in case they didn't call streamoff */
1056 dev->vid_timeout_running = 0;
1057 del_timer_sync(&dev->vid_timeout);
1058 } else if (vdev->vfl_type == VFL_TYPE_VBI &&
1059 dev->vbi_timeout_running) {
1060 /* Cancel timeout thread in case they didn't call streamoff */
1061 dev->vbi_timeout_running = 0;
1062 del_timer_sync(&dev->vbi_timeout);
1063 }
1064
1065 if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
1066 goto end;
1067
1068 if (dev->users == 1) {
1069 /*
1070 * Avoid putting tuner in sleep if DVB or ALSA are
1071 * streaming.
1072 *
1073 * On most USB devices like au0828 the tuner can
1074 * be safely put in sleep stare here if ALSA isn't
1075 * streaming. Exceptions are some very old USB tuner
1076 * models such as em28xx-based WinTV USB2 which have
1077 * a separate audio output jack. The devices that have
1078 * a separate audio output jack have analog tuners,
1079 * like Philips FM1236. Those devices are always on,
1080 * so the s_power callback are silently ignored.
1081 * So, the current logic here does the following:
1082 * Disable (put tuner to sleep) when
1083 * - ALSA and DVB aren't not streaming;
1084 * - the last V4L2 file handler is closed.
1085 *
1086 * FIXME:
1087 *
1088 * Additionally, this logic could be improved to
1089 * disable the media source if the above conditions
1090 * are met and if the device:
1091 * - doesn't have a separate audio out plug (or
1092 * - doesn't use a silicon tuner like xc2028/3028/4000/5000).
1093 *
1094 * Once this additional logic is in place, a callback
1095 * is needed to enable the media source and power on
1096 * the tuner, for radio to work.
1097 */
1098 ret = v4l_enable_media_source(vdev);
1099 if (ret == 0)
1100 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner,
1101 standby);
1102 dev->std_set_in_tuner_core = 0;
1103
1104 /* When close the device, set the usb intf0 into alt0 to free
1105 USB bandwidth */
1106 ret = usb_set_interface(dev->usbdev, 0, 0);
1107 if (ret < 0)
1108 pr_info("Au0828 can't set alternate to 0!\n");
1109 }
1110 end:
1111 _vb2_fop_release(filp, NULL);
1112 dev->users--;
1113 mutex_unlock(&dev->lock);
1114 return 0;
1115 }
1116
1117 /* Must be called with dev->lock held */
1118 static void au0828_init_tuner(struct au0828_dev *dev)
1119 {
1120 struct v4l2_frequency f = {
1121 .frequency = dev->ctrl_freq,
1122 .type = V4L2_TUNER_ANALOG_TV,
1123 };
1124
1125 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1126 dev->std_set_in_tuner_core, dev->dev_state);
1127
1128 if (dev->std_set_in_tuner_core)
1129 return;
1130 dev->std_set_in_tuner_core = 1;
1131 i2c_gate_ctrl(dev, 1);
1132 /* If we've never sent the standard in tuner core, do so now.
1133 We don't do this at device probe because we don't want to
1134 incur the cost of a firmware load */
1135 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std);
1136 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
1137 i2c_gate_ctrl(dev, 0);
1138 }
1139
1140 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
1141 struct v4l2_format *format)
1142 {
1143 int ret;
1144 int width = format->fmt.pix.width;
1145 int height = format->fmt.pix.height;
1146
1147 /* If they are demanding a format other than the one we support,
1148 bail out (tvtime asks for UYVY and then retries with YUYV) */
1149 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)
1150 return -EINVAL;
1151
1152 /* format->fmt.pix.width only support 720 and height 480 */
1153 if (width != 720)
1154 width = 720;
1155 if (height != 480)
1156 height = 480;
1157
1158 format->fmt.pix.width = width;
1159 format->fmt.pix.height = height;
1160 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1161 format->fmt.pix.bytesperline = width * 2;
1162 format->fmt.pix.sizeimage = width * height * 2;
1163 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1164 format->fmt.pix.field = V4L2_FIELD_INTERLACED;
1165 format->fmt.pix.priv = 0;
1166
1167 if (cmd == VIDIOC_TRY_FMT)
1168 return 0;
1169
1170 /* maybe set new image format, driver current only support 720*480 */
1171 dev->width = width;
1172 dev->height = height;
1173 dev->frame_size = width * height * 2;
1174 dev->field_size = width * height;
1175 dev->bytesperline = width * 2;
1176
1177 if (dev->stream_state == STREAM_ON) {
1178 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
1179 ret = au0828_stream_interrupt(dev);
1180 if (ret != 0) {
1181 dprintk(1, "error interrupting video stream!\n");
1182 return ret;
1183 }
1184 }
1185
1186 au0828_analog_stream_enable(dev);
1187
1188 return 0;
1189 }
1190
1191 static int vidioc_querycap(struct file *file, void *priv,
1192 struct v4l2_capability *cap)
1193 {
1194 struct video_device *vdev = video_devdata(file);
1195 struct au0828_dev *dev = video_drvdata(file);
1196
1197 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1198 dev->std_set_in_tuner_core, dev->dev_state);
1199
1200 strlcpy(cap->driver, "au0828", sizeof(cap->driver));
1201 strlcpy(cap->card, dev->board.name, sizeof(cap->card));
1202 usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info));
1203
1204 /* set the device capabilities */
1205 cap->device_caps = V4L2_CAP_AUDIO |
1206 V4L2_CAP_READWRITE |
1207 V4L2_CAP_STREAMING |
1208 V4L2_CAP_TUNER;
1209 if (vdev->vfl_type == VFL_TYPE_GRABBER)
1210 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
1211 else
1212 cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
1213 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS |
1214 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE;
1215 return 0;
1216 }
1217
1218 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1219 struct v4l2_fmtdesc *f)
1220 {
1221 if (f->index)
1222 return -EINVAL;
1223
1224 dprintk(1, "%s called\n", __func__);
1225
1226 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1227 strcpy(f->description, "Packed YUV2");
1228
1229 f->flags = 0;
1230 f->pixelformat = V4L2_PIX_FMT_UYVY;
1231
1232 return 0;
1233 }
1234
1235 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1236 struct v4l2_format *f)
1237 {
1238 struct au0828_dev *dev = video_drvdata(file);
1239
1240 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1241 dev->std_set_in_tuner_core, dev->dev_state);
1242
1243 f->fmt.pix.width = dev->width;
1244 f->fmt.pix.height = dev->height;
1245 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1246 f->fmt.pix.bytesperline = dev->bytesperline;
1247 f->fmt.pix.sizeimage = dev->frame_size;
1248 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
1249 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1250 f->fmt.pix.priv = 0;
1251 return 0;
1252 }
1253
1254 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1255 struct v4l2_format *f)
1256 {
1257 struct au0828_dev *dev = video_drvdata(file);
1258
1259 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1260 dev->std_set_in_tuner_core, dev->dev_state);
1261
1262 return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
1263 }
1264
1265 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1266 struct v4l2_format *f)
1267 {
1268 struct au0828_dev *dev = video_drvdata(file);
1269 int rc;
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 rc = check_dev(dev);
1275 if (rc < 0)
1276 return rc;
1277
1278 if (vb2_is_busy(&dev->vb_vidq)) {
1279 pr_info("%s queue busy\n", __func__);
1280 rc = -EBUSY;
1281 goto out;
1282 }
1283
1284 rc = au0828_set_format(dev, VIDIOC_S_FMT, f);
1285 out:
1286 return rc;
1287 }
1288
1289 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
1290 {
1291 struct au0828_dev *dev = video_drvdata(file);
1292
1293 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1294 dev->std_set_in_tuner_core, dev->dev_state);
1295
1296 if (norm == dev->std)
1297 return 0;
1298
1299 if (dev->streaming_users > 0)
1300 return -EBUSY;
1301
1302 dev->std = norm;
1303
1304 au0828_init_tuner(dev);
1305
1306 i2c_gate_ctrl(dev, 1);
1307
1308 /*
1309 * FIXME: when we support something other than 60Hz standards,
1310 * we are going to have to make the au0828 bridge adjust the size
1311 * of its capture buffer, which is currently hardcoded at 720x480
1312 */
1313
1314 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm);
1315
1316 i2c_gate_ctrl(dev, 0);
1317
1318 return 0;
1319 }
1320
1321 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
1322 {
1323 struct au0828_dev *dev = video_drvdata(file);
1324
1325 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1326 dev->std_set_in_tuner_core, dev->dev_state);
1327
1328 *norm = dev->std;
1329 return 0;
1330 }
1331
1332 static int vidioc_enum_input(struct file *file, void *priv,
1333 struct v4l2_input *input)
1334 {
1335 struct au0828_dev *dev = video_drvdata(file);
1336 unsigned int tmp;
1337
1338 static const char *inames[] = {
1339 [AU0828_VMUX_UNDEFINED] = "Undefined",
1340 [AU0828_VMUX_COMPOSITE] = "Composite",
1341 [AU0828_VMUX_SVIDEO] = "S-Video",
1342 [AU0828_VMUX_CABLE] = "Cable TV",
1343 [AU0828_VMUX_TELEVISION] = "Television",
1344 [AU0828_VMUX_DVB] = "DVB",
1345 };
1346
1347 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1348 dev->std_set_in_tuner_core, dev->dev_state);
1349
1350 tmp = input->index;
1351
1352 if (tmp >= AU0828_MAX_INPUT)
1353 return -EINVAL;
1354 if (AUVI_INPUT(tmp).type == 0)
1355 return -EINVAL;
1356
1357 input->index = tmp;
1358 strcpy(input->name, inames[AUVI_INPUT(tmp).type]);
1359 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
1360 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) {
1361 input->type |= V4L2_INPUT_TYPE_TUNER;
1362 input->audioset = 1;
1363 } else {
1364 input->type |= V4L2_INPUT_TYPE_CAMERA;
1365 input->audioset = 2;
1366 }
1367
1368 input->std = dev->vdev.tvnorms;
1369
1370 return 0;
1371 }
1372
1373 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1374 {
1375 struct au0828_dev *dev = video_drvdata(file);
1376
1377 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1378 dev->std_set_in_tuner_core, dev->dev_state);
1379
1380 *i = dev->ctrl_input;
1381 return 0;
1382 }
1383
1384 static void au0828_s_input(struct au0828_dev *dev, int index)
1385 {
1386 int i;
1387
1388 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1389 dev->std_set_in_tuner_core, dev->dev_state);
1390
1391 switch (AUVI_INPUT(index).type) {
1392 case AU0828_VMUX_SVIDEO:
1393 dev->input_type = AU0828_VMUX_SVIDEO;
1394 dev->ctrl_ainput = 1;
1395 break;
1396 case AU0828_VMUX_COMPOSITE:
1397 dev->input_type = AU0828_VMUX_COMPOSITE;
1398 dev->ctrl_ainput = 1;
1399 break;
1400 case AU0828_VMUX_TELEVISION:
1401 dev->input_type = AU0828_VMUX_TELEVISION;
1402 dev->ctrl_ainput = 0;
1403 break;
1404 default:
1405 dprintk(1, "unknown input type set [%d]\n",
1406 AUVI_INPUT(index).type);
1407 return;
1408 }
1409
1410 dev->ctrl_input = index;
1411
1412 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
1413 AUVI_INPUT(index).vmux, 0, 0);
1414
1415 for (i = 0; i < AU0828_MAX_INPUT; i++) {
1416 int enable = 0;
1417 if (AUVI_INPUT(i).audio_setup == NULL)
1418 continue;
1419
1420 if (i == index)
1421 enable = 1;
1422 else
1423 enable = 0;
1424 if (enable) {
1425 (AUVI_INPUT(i).audio_setup)(dev, enable);
1426 } else {
1427 /* Make sure we leave it turned on if some
1428 other input is routed to this callback */
1429 if ((AUVI_INPUT(i).audio_setup) !=
1430 ((AUVI_INPUT(index).audio_setup))) {
1431 (AUVI_INPUT(i).audio_setup)(dev, enable);
1432 }
1433 }
1434 }
1435
1436 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
1437 AUVI_INPUT(index).amux, 0, 0);
1438 }
1439
1440 static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
1441 {
1442 struct au0828_dev *dev = video_drvdata(file);
1443 struct video_device *vfd = video_devdata(file);
1444
1445 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
1446 index);
1447 if (index >= AU0828_MAX_INPUT)
1448 return -EINVAL;
1449 if (AUVI_INPUT(index).type == 0)
1450 return -EINVAL;
1451
1452 if (dev->ctrl_input == index)
1453 return 0;
1454
1455 au0828_s_input(dev, index);
1456
1457 /*
1458 * Input has been changed. Disable the media source
1459 * associated with the old input and enable source
1460 * for the newly set input
1461 */
1462 v4l_disable_media_source(vfd);
1463 return v4l_enable_media_source(vfd);
1464 }
1465
1466 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a)
1467 {
1468 if (a->index > 1)
1469 return -EINVAL;
1470
1471 dprintk(1, "%s called\n", __func__);
1472
1473 if (a->index == 0)
1474 strcpy(a->name, "Television");
1475 else
1476 strcpy(a->name, "Line in");
1477
1478 a->capability = V4L2_AUDCAP_STEREO;
1479 return 0;
1480 }
1481
1482 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1483 {
1484 struct au0828_dev *dev = video_drvdata(file);
1485
1486 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1487 dev->std_set_in_tuner_core, dev->dev_state);
1488
1489 a->index = dev->ctrl_ainput;
1490 if (a->index == 0)
1491 strcpy(a->name, "Television");
1492 else
1493 strcpy(a->name, "Line in");
1494
1495 a->capability = V4L2_AUDCAP_STEREO;
1496 return 0;
1497 }
1498
1499 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)
1500 {
1501 struct au0828_dev *dev = video_drvdata(file);
1502
1503 if (a->index != dev->ctrl_ainput)
1504 return -EINVAL;
1505
1506 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1507 dev->std_set_in_tuner_core, dev->dev_state);
1508 return 0;
1509 }
1510
1511 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1512 {
1513 struct au0828_dev *dev = video_drvdata(file);
1514 struct video_device *vfd = video_devdata(file);
1515 int ret;
1516
1517 if (t->index != 0)
1518 return -EINVAL;
1519
1520 ret = v4l_enable_media_source(vfd);
1521 if (ret)
1522 return ret;
1523
1524 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1525 dev->std_set_in_tuner_core, dev->dev_state);
1526
1527 strcpy(t->name, "Auvitek tuner");
1528
1529 au0828_init_tuner(dev);
1530 i2c_gate_ctrl(dev, 1);
1531 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1532 i2c_gate_ctrl(dev, 0);
1533 return 0;
1534 }
1535
1536 static int vidioc_s_tuner(struct file *file, void *priv,
1537 const struct v4l2_tuner *t)
1538 {
1539 struct au0828_dev *dev = video_drvdata(file);
1540
1541 if (t->index != 0)
1542 return -EINVAL;
1543
1544 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1545 dev->std_set_in_tuner_core, dev->dev_state);
1546
1547 au0828_init_tuner(dev);
1548 i2c_gate_ctrl(dev, 1);
1549 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1550 i2c_gate_ctrl(dev, 0);
1551
1552 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
1553 t->afc);
1554
1555 return 0;
1556
1557 }
1558
1559 static int vidioc_g_frequency(struct file *file, void *priv,
1560 struct v4l2_frequency *freq)
1561 {
1562 struct au0828_dev *dev = video_drvdata(file);
1563
1564 if (freq->tuner != 0)
1565 return -EINVAL;
1566 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1567 dev->std_set_in_tuner_core, dev->dev_state);
1568 freq->frequency = dev->ctrl_freq;
1569 return 0;
1570 }
1571
1572 static int vidioc_s_frequency(struct file *file, void *priv,
1573 const struct v4l2_frequency *freq)
1574 {
1575 struct au0828_dev *dev = video_drvdata(file);
1576 struct v4l2_frequency new_freq = *freq;
1577
1578 if (freq->tuner != 0)
1579 return -EINVAL;
1580
1581 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1582 dev->std_set_in_tuner_core, dev->dev_state);
1583
1584 au0828_init_tuner(dev);
1585 i2c_gate_ctrl(dev, 1);
1586
1587 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
1588 /* Get the actual set (and possibly clamped) frequency */
1589 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
1590 dev->ctrl_freq = new_freq.frequency;
1591
1592 i2c_gate_ctrl(dev, 0);
1593
1594 au0828_analog_stream_reset(dev);
1595
1596 return 0;
1597 }
1598
1599
1600 /* RAW VBI ioctls */
1601
1602 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1603 struct v4l2_format *format)
1604 {
1605 struct au0828_dev *dev = video_drvdata(file);
1606
1607 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1608 dev->std_set_in_tuner_core, dev->dev_state);
1609
1610 format->fmt.vbi.samples_per_line = dev->vbi_width;
1611 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1612 format->fmt.vbi.offset = 0;
1613 format->fmt.vbi.flags = 0;
1614 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
1615
1616 format->fmt.vbi.count[0] = dev->vbi_height;
1617 format->fmt.vbi.count[1] = dev->vbi_height;
1618 format->fmt.vbi.start[0] = 21;
1619 format->fmt.vbi.start[1] = 284;
1620 memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
1621
1622 return 0;
1623 }
1624
1625 static int vidioc_cropcap(struct file *file, void *priv,
1626 struct v4l2_cropcap *cc)
1627 {
1628 struct au0828_dev *dev = video_drvdata(file);
1629
1630 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1631 return -EINVAL;
1632
1633 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1634 dev->std_set_in_tuner_core, dev->dev_state);
1635
1636 cc->bounds.left = 0;
1637 cc->bounds.top = 0;
1638 cc->bounds.width = dev->width;
1639 cc->bounds.height = dev->height;
1640
1641 cc->defrect = cc->bounds;
1642
1643 cc->pixelaspect.numerator = 54;
1644 cc->pixelaspect.denominator = 59;
1645
1646 return 0;
1647 }
1648
1649 #ifdef CONFIG_VIDEO_ADV_DEBUG
1650 static int vidioc_g_register(struct file *file, void *priv,
1651 struct v4l2_dbg_register *reg)
1652 {
1653 struct au0828_dev *dev = video_drvdata(file);
1654
1655 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1656 dev->std_set_in_tuner_core, dev->dev_state);
1657
1658 reg->val = au0828_read(dev, reg->reg);
1659 reg->size = 1;
1660 return 0;
1661 }
1662
1663 static int vidioc_s_register(struct file *file, void *priv,
1664 const struct v4l2_dbg_register *reg)
1665 {
1666 struct au0828_dev *dev = video_drvdata(file);
1667
1668 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1669 dev->std_set_in_tuner_core, dev->dev_state);
1670
1671 return au0828_writereg(dev, reg->reg, reg->val);
1672 }
1673 #endif
1674
1675 static int vidioc_log_status(struct file *file, void *fh)
1676 {
1677 struct video_device *vdev = video_devdata(file);
1678
1679 dprintk(1, "%s called\n", __func__);
1680
1681 v4l2_ctrl_log_status(file, fh);
1682 v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status);
1683 return 0;
1684 }
1685
1686 void au0828_v4l2_suspend(struct au0828_dev *dev)
1687 {
1688 struct urb *urb;
1689 int i;
1690
1691 pr_info("stopping V4L2\n");
1692
1693 if (dev->stream_state == STREAM_ON) {
1694 pr_info("stopping V4L2 active URBs\n");
1695 au0828_analog_stream_disable(dev);
1696 /* stop urbs */
1697 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1698 urb = dev->isoc_ctl.urb[i];
1699 if (urb) {
1700 if (!irqs_disabled())
1701 usb_kill_urb(urb);
1702 else
1703 usb_unlink_urb(urb);
1704 }
1705 }
1706 }
1707
1708 if (dev->vid_timeout_running)
1709 del_timer_sync(&dev->vid_timeout);
1710 if (dev->vbi_timeout_running)
1711 del_timer_sync(&dev->vbi_timeout);
1712 }
1713
1714 void au0828_v4l2_resume(struct au0828_dev *dev)
1715 {
1716 int i, rc;
1717
1718 pr_info("restarting V4L2\n");
1719
1720 if (dev->stream_state == STREAM_ON) {
1721 au0828_stream_interrupt(dev);
1722 au0828_init_tuner(dev);
1723 }
1724
1725 if (dev->vid_timeout_running)
1726 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
1727 if (dev->vbi_timeout_running)
1728 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1729
1730 /* If we were doing ac97 instead of i2s, it would go here...*/
1731 au0828_i2s_init(dev);
1732
1733 au0828_analog_stream_enable(dev);
1734
1735 if (!(dev->stream_state == STREAM_ON)) {
1736 au0828_analog_stream_reset(dev);
1737 /* submit urbs */
1738 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1739 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
1740 if (rc) {
1741 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
1742 i, rc);
1743 au0828_uninit_isoc(dev);
1744 }
1745 }
1746 }
1747 }
1748
1749 static const struct v4l2_file_operations au0828_v4l_fops = {
1750 .owner = THIS_MODULE,
1751 .open = au0828_v4l2_open,
1752 .release = au0828_v4l2_close,
1753 .read = vb2_fop_read,
1754 .poll = vb2_fop_poll,
1755 .mmap = vb2_fop_mmap,
1756 .unlocked_ioctl = video_ioctl2,
1757 };
1758
1759 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1760 .vidioc_querycap = vidioc_querycap,
1761 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1762 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1763 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1764 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1765 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1766 .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1767 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1768 .vidioc_enumaudio = vidioc_enumaudio,
1769 .vidioc_g_audio = vidioc_g_audio,
1770 .vidioc_s_audio = vidioc_s_audio,
1771 .vidioc_cropcap = vidioc_cropcap,
1772
1773 .vidioc_reqbufs = vb2_ioctl_reqbufs,
1774 .vidioc_create_bufs = vb2_ioctl_create_bufs,
1775 .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
1776 .vidioc_querybuf = vb2_ioctl_querybuf,
1777 .vidioc_qbuf = vb2_ioctl_qbuf,
1778 .vidioc_dqbuf = vb2_ioctl_dqbuf,
1779 .vidioc_expbuf = vb2_ioctl_expbuf,
1780
1781 .vidioc_s_std = vidioc_s_std,
1782 .vidioc_g_std = vidioc_g_std,
1783 .vidioc_enum_input = vidioc_enum_input,
1784 .vidioc_g_input = vidioc_g_input,
1785 .vidioc_s_input = vidioc_s_input,
1786
1787 .vidioc_streamon = vb2_ioctl_streamon,
1788 .vidioc_streamoff = vb2_ioctl_streamoff,
1789
1790 .vidioc_g_tuner = vidioc_g_tuner,
1791 .vidioc_s_tuner = vidioc_s_tuner,
1792 .vidioc_g_frequency = vidioc_g_frequency,
1793 .vidioc_s_frequency = vidioc_s_frequency,
1794 #ifdef CONFIG_VIDEO_ADV_DEBUG
1795 .vidioc_g_register = vidioc_g_register,
1796 .vidioc_s_register = vidioc_s_register,
1797 #endif
1798 .vidioc_log_status = vidioc_log_status,
1799 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1800 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1801 };
1802
1803 static const struct video_device au0828_video_template = {
1804 .fops = &au0828_v4l_fops,
1805 .release = video_device_release_empty,
1806 .ioctl_ops = &video_ioctl_ops,
1807 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M,
1808 };
1809
1810 static int au0828_vb2_setup(struct au0828_dev *dev)
1811 {
1812 int rc;
1813 struct vb2_queue *q;
1814
1815 /* Setup Videobuf2 for Video capture */
1816 q = &dev->vb_vidq;
1817 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1818 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1819 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1820 q->drv_priv = dev;
1821 q->buf_struct_size = sizeof(struct au0828_buffer);
1822 q->ops = &au0828_video_qops;
1823 q->mem_ops = &vb2_vmalloc_memops;
1824
1825 rc = vb2_queue_init(q);
1826 if (rc < 0)
1827 return rc;
1828
1829 /* Setup Videobuf2 for VBI capture */
1830 q = &dev->vb_vbiq;
1831 q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1832 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1833 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1834 q->drv_priv = dev;
1835 q->buf_struct_size = sizeof(struct au0828_buffer);
1836 q->ops = &au0828_vbi_qops;
1837 q->mem_ops = &vb2_vmalloc_memops;
1838
1839 rc = vb2_queue_init(q);
1840 if (rc < 0)
1841 return rc;
1842
1843 return 0;
1844 }
1845
1846 static void au0828_analog_create_entities(struct au0828_dev *dev)
1847 {
1848 #if defined(CONFIG_MEDIA_CONTROLLER)
1849 static const char * const inames[] = {
1850 [AU0828_VMUX_COMPOSITE] = "Composite",
1851 [AU0828_VMUX_SVIDEO] = "S-Video",
1852 [AU0828_VMUX_CABLE] = "Cable TV",
1853 [AU0828_VMUX_TELEVISION] = "Television",
1854 [AU0828_VMUX_DVB] = "DVB",
1855 };
1856 int ret, i;
1857
1858 /* Initialize Video and VBI pads */
1859 dev->video_pad.flags = MEDIA_PAD_FL_SINK;
1860 ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad);
1861 if (ret < 0)
1862 pr_err("failed to initialize video media entity!\n");
1863
1864 dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
1865 ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad);
1866 if (ret < 0)
1867 pr_err("failed to initialize vbi media entity!\n");
1868
1869 /* Create entities for each input connector */
1870 for (i = 0; i < AU0828_MAX_INPUT; i++) {
1871 struct media_entity *ent = &dev->input_ent[i];
1872
1873 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
1874 break;
1875
1876 ent->name = inames[AUVI_INPUT(i).type];
1877 ent->flags = MEDIA_ENT_FL_CONNECTOR;
1878 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
1879
1880 switch (AUVI_INPUT(i).type) {
1881 case AU0828_VMUX_COMPOSITE:
1882 ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
1883 break;
1884 case AU0828_VMUX_SVIDEO:
1885 ent->function = MEDIA_ENT_F_CONN_SVIDEO;
1886 break;
1887 case AU0828_VMUX_CABLE:
1888 case AU0828_VMUX_TELEVISION:
1889 case AU0828_VMUX_DVB:
1890 default: /* Just to shut up a warning */
1891 ent->function = MEDIA_ENT_F_CONN_RF;
1892 break;
1893 }
1894
1895 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
1896 if (ret < 0)
1897 pr_err("failed to initialize input pad[%d]!\n", i);
1898
1899 ret = media_device_register_entity(dev->media_dev, ent);
1900 if (ret < 0)
1901 pr_err("failed to register input entity %d!\n", i);
1902 }
1903 #endif
1904 }
1905
1906 /**************************************************************************/
1907
1908 int au0828_analog_register(struct au0828_dev *dev,
1909 struct usb_interface *interface)
1910 {
1911 int retval = -ENOMEM;
1912 struct usb_host_interface *iface_desc;
1913 struct usb_endpoint_descriptor *endpoint;
1914 int i, ret;
1915
1916 dprintk(1, "au0828_analog_register called for intf#%d!\n",
1917 interface->cur_altsetting->desc.bInterfaceNumber);
1918
1919 /* No analog TV */
1920 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
1921 return 0;
1922
1923 /* set au0828 usb interface0 to as5 */
1924 retval = usb_set_interface(dev->usbdev,
1925 interface->cur_altsetting->desc.bInterfaceNumber, 5);
1926 if (retval != 0) {
1927 pr_info("Failure setting usb interface0 to as5\n");
1928 return retval;
1929 }
1930
1931 /* Figure out which endpoint has the isoc interface */
1932 iface_desc = interface->cur_altsetting;
1933 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
1934 endpoint = &iface_desc->endpoint[i].desc;
1935 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1936 == USB_DIR_IN) &&
1937 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1938 == USB_ENDPOINT_XFER_ISOC)) {
1939
1940 /* we find our isoc in endpoint */
1941 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
1942 dev->max_pkt_size = (tmp & 0x07ff) *
1943 (((tmp & 0x1800) >> 11) + 1);
1944 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
1945 dprintk(1,
1946 "Found isoc endpoint 0x%02x, max size = %d\n",
1947 dev->isoc_in_endpointaddr, dev->max_pkt_size);
1948 }
1949 }
1950 if (!(dev->isoc_in_endpointaddr)) {
1951 pr_info("Could not locate isoc endpoint\n");
1952 return -ENODEV;
1953 }
1954
1955 init_waitqueue_head(&dev->open);
1956 spin_lock_init(&dev->slock);
1957
1958 /* init video dma queues */
1959 INIT_LIST_HEAD(&dev->vidq.active);
1960 INIT_LIST_HEAD(&dev->vbiq.active);
1961
1962 timer_setup(&dev->vid_timeout, au0828_vid_buffer_timeout, 0);
1963 timer_setup(&dev->vbi_timeout, au0828_vbi_buffer_timeout, 0);
1964
1965 dev->width = NTSC_STD_W;
1966 dev->height = NTSC_STD_H;
1967 dev->field_size = dev->width * dev->height;
1968 dev->frame_size = dev->field_size << 1;
1969 dev->bytesperline = dev->width << 1;
1970 dev->vbi_width = 720;
1971 dev->vbi_height = 1;
1972 dev->ctrl_ainput = 0;
1973 dev->ctrl_freq = 960;
1974 dev->std = V4L2_STD_NTSC_M;
1975 /* Default input is TV Tuner */
1976 au0828_s_input(dev, 0);
1977
1978 mutex_init(&dev->vb_queue_lock);
1979 mutex_init(&dev->vb_vbi_queue_lock);
1980
1981 /* Fill the video capture device struct */
1982 dev->vdev = au0828_video_template;
1983 dev->vdev.v4l2_dev = &dev->v4l2_dev;
1984 dev->vdev.lock = &dev->lock;
1985 dev->vdev.queue = &dev->vb_vidq;
1986 dev->vdev.queue->lock = &dev->vb_queue_lock;
1987 strcpy(dev->vdev.name, "au0828a video");
1988
1989 /* Setup the VBI device */
1990 dev->vbi_dev = au0828_video_template;
1991 dev->vbi_dev.v4l2_dev = &dev->v4l2_dev;
1992 dev->vbi_dev.lock = &dev->lock;
1993 dev->vbi_dev.queue = &dev->vb_vbiq;
1994 dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock;
1995 strcpy(dev->vbi_dev.name, "au0828a vbi");
1996
1997 /* Init entities at the Media Controller */
1998 au0828_analog_create_entities(dev);
1999
2000 /* initialize videobuf2 stuff */
2001 retval = au0828_vb2_setup(dev);
2002 if (retval != 0) {
2003 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n",
2004 retval);
2005 return -ENODEV;
2006 }
2007
2008 /* Register the v4l2 device */
2009 video_set_drvdata(&dev->vdev, dev);
2010 retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1);
2011 if (retval != 0) {
2012 dprintk(1, "unable to register video device (error = %d).\n",
2013 retval);
2014 ret = -ENODEV;
2015 goto err_reg_vdev;
2016 }
2017
2018 /* Register the vbi device */
2019 video_set_drvdata(&dev->vbi_dev, dev);
2020 retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1);
2021 if (retval != 0) {
2022 dprintk(1, "unable to register vbi device (error = %d).\n",
2023 retval);
2024 ret = -ENODEV;
2025 goto err_reg_vbi_dev;
2026 }
2027
2028 #ifdef CONFIG_MEDIA_CONTROLLER
2029 retval = v4l2_mc_create_media_graph(dev->media_dev);
2030 if (retval) {
2031 pr_err("%s() au0282_dev_register failed to create graph\n",
2032 __func__);
2033 ret = -ENODEV;
2034 goto err_reg_vbi_dev;
2035 }
2036 #endif
2037
2038 dprintk(1, "%s completed!\n", __func__);
2039
2040 return 0;
2041
2042 err_reg_vbi_dev:
2043 video_unregister_device(&dev->vdev);
2044 err_reg_vdev:
2045 vb2_queue_release(&dev->vb_vidq);
2046 vb2_queue_release(&dev->vb_vbiq);
2047 return ret;
2048 }
2049
Linux with added FPC-III support