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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / media / usb / au0828 / au0828-video.c
blobd1895334cbbf7b6ea48093006dc7051adfbe6119
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Auvitek AU0828 USB Bridge (Analog video support)
4 *
5 * Copyright (C) 2009 Devin Heitmueller <dheitmueller@linuxtv.org>
6 * Copyright (C) 2005-2008 Auvitek International, Ltd.
7 */
8
9 /* Developer Notes:
10 *
11 * The hardware scaler supported is unimplemented
12 * AC97 audio support is unimplemented (only i2s audio mode)
13 *
14 */
15
16 #include "au0828.h"
17 #include "au8522.h"
18
19 #include <linux/module.h>
20 #include <linux/slab.h>
21 #include <linux/init.h>
22 #include <linux/device.h>
23 #include <media/v4l2-common.h>
24 #include <media/v4l2-mc.h>
25 #include <media/v4l2-ioctl.h>
26 #include <media/v4l2-event.h>
27 #include <media/tuner.h>
28 #include "au0828-reg.h"
29
30 static DEFINE_MUTEX(au0828_sysfs_lock);
31
32 /* ------------------------------------------------------------------
33 Videobuf operations
34 ------------------------------------------------------------------*/
35
36 static unsigned int isoc_debug;
37 module_param(isoc_debug, int, 0644);
38 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
39
40 #define au0828_isocdbg(fmt, arg...) \
41 do {\
42 if (isoc_debug) { \
43 pr_info("au0828 %s :"fmt, \
44 __func__ , ##arg); \
45 } \
46 } while (0)
47
48 static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val)
49 {
50 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
51 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val);
52 }
53
54 static inline void print_err_status(struct au0828_dev *dev,
55 int packet, int status)
56 {
57 char *errmsg = "Unknown";
58
59 switch (status) {
60 case -ENOENT:
61 errmsg = "unlinked synchronously";
62 break;
63 case -ECONNRESET:
64 errmsg = "unlinked asynchronously";
65 break;
66 case -ENOSR:
67 errmsg = "Buffer error (overrun)";
68 break;
69 case -EPIPE:
70 errmsg = "Stalled (device not responding)";
71 break;
72 case -EOVERFLOW:
73 errmsg = "Babble (bad cable?)";
74 break;
75 case -EPROTO:
76 errmsg = "Bit-stuff error (bad cable?)";
77 break;
78 case -EILSEQ:
79 errmsg = "CRC/Timeout (could be anything)";
80 break;
81 case -ETIME:
82 errmsg = "Device does not respond";
83 break;
84 }
85 if (packet < 0) {
86 au0828_isocdbg("URB status %d [%s].\n", status, errmsg);
87 } else {
88 au0828_isocdbg("URB packet %d, status %d [%s].\n",
89 packet, status, errmsg);
90 }
91 }
92
93 static int check_dev(struct au0828_dev *dev)
94 {
95 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) {
96 pr_info("v4l2 ioctl: device not present\n");
97 return -ENODEV;
98 }
99
100 if (test_bit(DEV_MISCONFIGURED, &dev->dev_state)) {
101 pr_info("v4l2 ioctl: device is misconfigured; close and open it again\n");
102 return -EIO;
103 }
104 return 0;
105 }
106
107 /*
108 * IRQ callback, called by URB callback
109 */
110 static void au0828_irq_callback(struct urb *urb)
111 {
112 struct au0828_dmaqueue *dma_q = urb->context;
113 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
114 unsigned long flags = 0;
115 int i;
116
117 switch (urb->status) {
118 case 0: /* success */
119 case -ETIMEDOUT: /* NAK */
120 break;
121 case -ECONNRESET: /* kill */
122 case -ENOENT:
123 case -ESHUTDOWN:
124 au0828_isocdbg("au0828_irq_callback called: status kill\n");
125 return;
126 default: /* unknown error */
127 au0828_isocdbg("urb completion error %d.\n", urb->status);
128 break;
129 }
130
131 /* Copy data from URB */
132 spin_lock_irqsave(&dev->slock, flags);
133 dev->isoc_ctl.isoc_copy(dev, urb);
134 spin_unlock_irqrestore(&dev->slock, flags);
135
136 /* Reset urb buffers */
137 for (i = 0; i < urb->number_of_packets; i++) {
138 urb->iso_frame_desc[i].status = 0;
139 urb->iso_frame_desc[i].actual_length = 0;
140 }
141 urb->status = 0;
142
143 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
144 if (urb->status) {
145 au0828_isocdbg("urb resubmit failed (error=%i)\n",
146 urb->status);
147 }
148 dev->stream_state = STREAM_ON;
149 }
150
151 /*
152 * Stop and Deallocate URBs
153 */
154 static void au0828_uninit_isoc(struct au0828_dev *dev)
155 {
156 struct urb *urb;
157 int i;
158
159 au0828_isocdbg("au0828: called au0828_uninit_isoc\n");
160
161 dev->isoc_ctl.nfields = -1;
162 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
163 urb = dev->isoc_ctl.urb[i];
164 if (urb) {
165 if (!irqs_disabled())
166 usb_kill_urb(urb);
167 else
168 usb_unlink_urb(urb);
169
170 if (dev->isoc_ctl.transfer_buffer[i]) {
171 usb_free_coherent(dev->usbdev,
172 urb->transfer_buffer_length,
173 dev->isoc_ctl.transfer_buffer[i],
174 urb->transfer_dma);
175 }
176 usb_free_urb(urb);
177 dev->isoc_ctl.urb[i] = NULL;
178 }
179 dev->isoc_ctl.transfer_buffer[i] = NULL;
180 }
181
182 kfree(dev->isoc_ctl.urb);
183 kfree(dev->isoc_ctl.transfer_buffer);
184
185 dev->isoc_ctl.urb = NULL;
186 dev->isoc_ctl.transfer_buffer = NULL;
187 dev->isoc_ctl.num_bufs = 0;
188
189 dev->stream_state = STREAM_OFF;
190 }
191
192 /*
193 * Allocate URBs and start IRQ
194 */
195 static int au0828_init_isoc(struct au0828_dev *dev, int max_packets,
196 int num_bufs, int max_pkt_size,
197 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb))
198 {
199 struct au0828_dmaqueue *dma_q = &dev->vidq;
200 int i;
201 int sb_size, pipe;
202 struct urb *urb;
203 int j, k;
204 int rc;
205
206 au0828_isocdbg("au0828: called au0828_prepare_isoc\n");
207
208 dev->isoc_ctl.isoc_copy = isoc_copy;
209 dev->isoc_ctl.num_bufs = num_bufs;
210
211 dev->isoc_ctl.urb = kcalloc(num_bufs, sizeof(void *), GFP_KERNEL);
212 if (!dev->isoc_ctl.urb) {
213 au0828_isocdbg("cannot alloc memory for usb buffers\n");
214 return -ENOMEM;
215 }
216
217 dev->isoc_ctl.transfer_buffer = kcalloc(num_bufs, sizeof(void *),
218 GFP_KERNEL);
219 if (!dev->isoc_ctl.transfer_buffer) {
220 au0828_isocdbg("cannot allocate memory for usb transfer\n");
221 kfree(dev->isoc_ctl.urb);
222 return -ENOMEM;
223 }
224
225 dev->isoc_ctl.max_pkt_size = max_pkt_size;
226 dev->isoc_ctl.buf = NULL;
227
228 sb_size = max_packets * dev->isoc_ctl.max_pkt_size;
229
230 /* allocate urbs and transfer buffers */
231 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
232 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
233 if (!urb) {
234 au0828_uninit_isoc(dev);
235 return -ENOMEM;
236 }
237 dev->isoc_ctl.urb[i] = urb;
238
239 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev,
240 sb_size, GFP_KERNEL, &urb->transfer_dma);
241 if (!dev->isoc_ctl.transfer_buffer[i]) {
242 printk("unable to allocate %i bytes for transfer buffer %i%s\n",
243 sb_size, i,
244 in_interrupt() ? " while in int" : "");
245 au0828_uninit_isoc(dev);
246 return -ENOMEM;
247 }
248 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
249
250 pipe = usb_rcvisocpipe(dev->usbdev,
251 dev->isoc_in_endpointaddr),
252
253 usb_fill_int_urb(urb, dev->usbdev, pipe,
254 dev->isoc_ctl.transfer_buffer[i], sb_size,
255 au0828_irq_callback, dma_q, 1);
256
257 urb->number_of_packets = max_packets;
258 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
259
260 k = 0;
261 for (j = 0; j < max_packets; j++) {
262 urb->iso_frame_desc[j].offset = k;
263 urb->iso_frame_desc[j].length =
264 dev->isoc_ctl.max_pkt_size;
265 k += dev->isoc_ctl.max_pkt_size;
266 }
267 }
268
269 /* submit urbs and enables IRQ */
270 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
271 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
272 if (rc) {
273 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
274 i, rc);
275 au0828_uninit_isoc(dev);
276 return rc;
277 }
278 }
279
280 return 0;
281 }
282
283 /*
284 * Announces that a buffer were filled and request the next
285 */
286 static inline void buffer_filled(struct au0828_dev *dev,
287 struct au0828_dmaqueue *dma_q,
288 struct au0828_buffer *buf)
289 {
290 struct vb2_v4l2_buffer *vb = &buf->vb;
291 struct vb2_queue *q = vb->vb2_buf.vb2_queue;
292
293 /* Advice that buffer was filled */
294 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field);
295
296 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
297 vb->sequence = dev->frame_count++;
298 else
299 vb->sequence = dev->vbi_frame_count++;
300
301 vb->field = V4L2_FIELD_INTERLACED;
302 vb->vb2_buf.timestamp = ktime_get_ns();
303 vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE);
304 }
305
306 /*
307 * Identify the buffer header type and properly handles
308 */
309 static void au0828_copy_video(struct au0828_dev *dev,
310 struct au0828_dmaqueue *dma_q,
311 struct au0828_buffer *buf,
312 unsigned char *p,
313 unsigned char *outp, unsigned long len)
314 {
315 void *fieldstart, *startwrite, *startread;
316 int linesdone, currlinedone, offset, lencopy, remain;
317 int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */
318
319 if (len == 0)
320 return;
321
322 if (dma_q->pos + len > buf->length)
323 len = buf->length - dma_q->pos;
324
325 startread = p;
326 remain = len;
327
328 /* Interlaces frame */
329 if (buf->top_field)
330 fieldstart = outp;
331 else
332 fieldstart = outp + bytesperline;
333
334 linesdone = dma_q->pos / bytesperline;
335 currlinedone = dma_q->pos % bytesperline;
336 offset = linesdone * bytesperline * 2 + currlinedone;
337 startwrite = fieldstart + offset;
338 lencopy = bytesperline - currlinedone;
339 lencopy = lencopy > remain ? remain : lencopy;
340
341 if ((char *)startwrite + lencopy > (char *)outp + buf->length) {
342 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
343 ((char *)startwrite + lencopy) -
344 ((char *)outp + buf->length));
345 remain = (char *)outp + buf->length - (char *)startwrite;
346 lencopy = remain;
347 }
348 if (lencopy <= 0)
349 return;
350 memcpy(startwrite, startread, lencopy);
351
352 remain -= lencopy;
353
354 while (remain > 0) {
355 startwrite += lencopy + bytesperline;
356 startread += lencopy;
357 if (bytesperline > remain)
358 lencopy = remain;
359 else
360 lencopy = bytesperline;
361
362 if ((char *)startwrite + lencopy > (char *)outp +
363 buf->length) {
364 au0828_isocdbg("Overflow %zi bytes past buf end (2)\n",
365 ((char *)startwrite + lencopy) -
366 ((char *)outp + buf->length));
367 lencopy = remain = (char *)outp + buf->length -
368 (char *)startwrite;
369 }
370 if (lencopy <= 0)
371 break;
372
373 memcpy(startwrite, startread, lencopy);
374
375 remain -= lencopy;
376 }
377
378 if (offset > 1440) {
379 /* We have enough data to check for greenscreen */
380 if (outp[0] < 0x60 && outp[1440] < 0x60)
381 dev->greenscreen_detected = 1;
382 }
383
384 dma_q->pos += len;
385 }
386
387 /*
388 * video-buf generic routine to get the next available buffer
389 */
390 static inline void get_next_buf(struct au0828_dmaqueue *dma_q,
391 struct au0828_buffer **buf)
392 {
393 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
394
395 if (list_empty(&dma_q->active)) {
396 au0828_isocdbg("No active queue to serve\n");
397 dev->isoc_ctl.buf = NULL;
398 *buf = NULL;
399 return;
400 }
401
402 /* Get the next buffer */
403 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
404 /* Cleans up buffer - Useful for testing for frame/URB loss */
405 list_del(&(*buf)->list);
406 dma_q->pos = 0;
407 (*buf)->vb_buf = (*buf)->mem;
408 dev->isoc_ctl.buf = *buf;
409
410 return;
411 }
412
413 static void au0828_copy_vbi(struct au0828_dev *dev,
414 struct au0828_dmaqueue *dma_q,
415 struct au0828_buffer *buf,
416 unsigned char *p,
417 unsigned char *outp, unsigned long len)
418 {
419 unsigned char *startwrite, *startread;
420 int bytesperline;
421 int i, j = 0;
422
423 if (dev == NULL) {
424 au0828_isocdbg("dev is null\n");
425 return;
426 }
427
428 if (dma_q == NULL) {
429 au0828_isocdbg("dma_q is null\n");
430 return;
431 }
432 if (buf == NULL)
433 return;
434 if (p == NULL) {
435 au0828_isocdbg("p is null\n");
436 return;
437 }
438 if (outp == NULL) {
439 au0828_isocdbg("outp is null\n");
440 return;
441 }
442
443 bytesperline = dev->vbi_width;
444
445 if (dma_q->pos + len > buf->length)
446 len = buf->length - dma_q->pos;
447
448 startread = p;
449 startwrite = outp + (dma_q->pos / 2);
450
451 /* Make sure the bottom field populates the second half of the frame */
452 if (buf->top_field == 0)
453 startwrite += bytesperline * dev->vbi_height;
454
455 for (i = 0; i < len; i += 2)
456 startwrite[j++] = startread[i+1];
457
458 dma_q->pos += len;
459 }
460
461
462 /*
463 * video-buf generic routine to get the next available VBI buffer
464 */
465 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q,
466 struct au0828_buffer **buf)
467 {
468 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq);
469
470 if (list_empty(&dma_q->active)) {
471 au0828_isocdbg("No active queue to serve\n");
472 dev->isoc_ctl.vbi_buf = NULL;
473 *buf = NULL;
474 return;
475 }
476
477 /* Get the next buffer */
478 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
479 /* Cleans up buffer - Useful for testing for frame/URB loss */
480 list_del(&(*buf)->list);
481 dma_q->pos = 0;
482 (*buf)->vb_buf = (*buf)->mem;
483 dev->isoc_ctl.vbi_buf = *buf;
484 return;
485 }
486
487 /*
488 * Controls the isoc copy of each urb packet
489 */
490 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
491 {
492 struct au0828_buffer *buf;
493 struct au0828_buffer *vbi_buf;
494 struct au0828_dmaqueue *dma_q = urb->context;
495 struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq;
496 unsigned char *outp = NULL;
497 unsigned char *vbioutp = NULL;
498 int i, len = 0, rc = 1;
499 unsigned char *p;
500 unsigned char fbyte;
501 unsigned int vbi_field_size;
502 unsigned int remain, lencopy;
503
504 if (!dev)
505 return 0;
506
507 if (test_bit(DEV_DISCONNECTED, &dev->dev_state) ||
508 test_bit(DEV_MISCONFIGURED, &dev->dev_state))
509 return 0;
510
511 if (urb->status < 0) {
512 print_err_status(dev, -1, urb->status);
513 if (urb->status == -ENOENT)
514 return 0;
515 }
516
517 buf = dev->isoc_ctl.buf;
518 if (buf != NULL)
519 outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
520
521 vbi_buf = dev->isoc_ctl.vbi_buf;
522 if (vbi_buf != NULL)
523 vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0);
524
525 for (i = 0; i < urb->number_of_packets; i++) {
526 int status = urb->iso_frame_desc[i].status;
527
528 if (status < 0) {
529 print_err_status(dev, i, status);
530 if (urb->iso_frame_desc[i].status != -EPROTO)
531 continue;
532 }
533
534 if (urb->iso_frame_desc[i].actual_length <= 0)
535 continue;
536
537 if (urb->iso_frame_desc[i].actual_length >
538 dev->max_pkt_size) {
539 au0828_isocdbg("packet bigger than packet size");
540 continue;
541 }
542
543 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
544 fbyte = p[0];
545 len = urb->iso_frame_desc[i].actual_length - 4;
546 p += 4;
547
548 if (fbyte & 0x80) {
549 len -= 4;
550 p += 4;
551 au0828_isocdbg("Video frame %s\n",
552 (fbyte & 0x40) ? "odd" : "even");
553 if (fbyte & 0x40) {
554 /* VBI */
555 if (vbi_buf != NULL)
556 buffer_filled(dev, vbi_dma_q, vbi_buf);
557 vbi_get_next_buf(vbi_dma_q, &vbi_buf);
558 if (vbi_buf == NULL)
559 vbioutp = NULL;
560 else
561 vbioutp = vb2_plane_vaddr(
562 &vbi_buf->vb.vb2_buf, 0);
563
564 /* Video */
565 if (buf != NULL)
566 buffer_filled(dev, dma_q, buf);
567 get_next_buf(dma_q, &buf);
568 if (buf == NULL)
569 outp = NULL;
570 else
571 outp = vb2_plane_vaddr(
572 &buf->vb.vb2_buf, 0);
573
574 /* As long as isoc traffic is arriving, keep
575 resetting the timer */
576 if (dev->vid_timeout_running)
577 mod_timer(&dev->vid_timeout,
578 jiffies + (HZ / 10));
579 if (dev->vbi_timeout_running)
580 mod_timer(&dev->vbi_timeout,
581 jiffies + (HZ / 10));
582 }
583
584 if (buf != NULL) {
585 if (fbyte & 0x40)
586 buf->top_field = 1;
587 else
588 buf->top_field = 0;
589 }
590
591 if (vbi_buf != NULL) {
592 if (fbyte & 0x40)
593 vbi_buf->top_field = 1;
594 else
595 vbi_buf->top_field = 0;
596 }
597
598 dev->vbi_read = 0;
599 vbi_dma_q->pos = 0;
600 dma_q->pos = 0;
601 }
602
603 vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
604 if (dev->vbi_read < vbi_field_size) {
605 remain = vbi_field_size - dev->vbi_read;
606 if (len < remain)
607 lencopy = len;
608 else
609 lencopy = remain;
610
611 if (vbi_buf != NULL)
612 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
613 vbioutp, len);
614
615 len -= lencopy;
616 p += lencopy;
617 dev->vbi_read += lencopy;
618 }
619
620 if (dev->vbi_read >= vbi_field_size && buf != NULL)
621 au0828_copy_video(dev, dma_q, buf, p, outp, len);
622 }
623 return rc;
624 }
625
626 void au0828_usb_v4l2_media_release(struct au0828_dev *dev)
627 {
628 #ifdef CONFIG_MEDIA_CONTROLLER
629 int i;
630
631 for (i = 0; i < AU0828_MAX_INPUT; i++) {
632 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
633 return;
634 media_device_unregister_entity(&dev->input_ent[i]);
635 }
636 #endif
637 }
638
639 static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev)
640 {
641 struct au0828_dev *dev =
642 container_of(v4l2_dev, struct au0828_dev, v4l2_dev);
643
644 v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl);
645 v4l2_device_unregister(&dev->v4l2_dev);
646 au0828_usb_v4l2_media_release(dev);
647 au0828_usb_release(dev);
648 }
649
650 int au0828_v4l2_device_register(struct usb_interface *interface,
651 struct au0828_dev *dev)
652 {
653 int retval;
654
655 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
656 return 0;
657
658 /* Create the v4l2_device */
659 #ifdef CONFIG_MEDIA_CONTROLLER
660 dev->v4l2_dev.mdev = dev->media_dev;
661 #endif
662 retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
663 if (retval) {
664 pr_err("%s() v4l2_device_register failed\n",
665 __func__);
666 return retval;
667 }
668
669 dev->v4l2_dev.release = au0828_usb_v4l2_release;
670
671 /* This control handler will inherit the controls from au8522 */
672 retval = v4l2_ctrl_handler_init(&dev->v4l2_ctrl_hdl, 4);
673 if (retval) {
674 pr_err("%s() v4l2_ctrl_handler_init failed\n",
675 __func__);
676 return retval;
677 }
678 dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl;
679
680 return 0;
681 }
682
683 static int queue_setup(struct vb2_queue *vq,
684 unsigned int *nbuffers, unsigned int *nplanes,
685 unsigned int sizes[], struct device *alloc_devs[])
686 {
687 struct au0828_dev *dev = vb2_get_drv_priv(vq);
688 unsigned long size = dev->height * dev->bytesperline;
689
690 if (*nplanes)
691 return sizes[0] < size ? -EINVAL : 0;
692 *nplanes = 1;
693 sizes[0] = size;
694 return 0;
695 }
696
697 static int
698 buffer_prepare(struct vb2_buffer *vb)
699 {
700 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
701 struct au0828_buffer *buf = container_of(vbuf,
702 struct au0828_buffer, vb);
703 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
704
705 buf->length = dev->height * dev->bytesperline;
706
707 if (vb2_plane_size(vb, 0) < buf->length) {
708 pr_err("%s data will not fit into plane (%lu < %lu)\n",
709 __func__, vb2_plane_size(vb, 0), buf->length);
710 return -EINVAL;
711 }
712 vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length);
713 return 0;
714 }
715
716 static void
717 buffer_queue(struct vb2_buffer *vb)
718 {
719 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
720 struct au0828_buffer *buf = container_of(vbuf,
721 struct au0828_buffer,
722 vb);
723 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
724 struct au0828_dmaqueue *vidq = &dev->vidq;
725 unsigned long flags = 0;
726
727 buf->mem = vb2_plane_vaddr(vb, 0);
728 buf->length = vb2_plane_size(vb, 0);
729
730 spin_lock_irqsave(&dev->slock, flags);
731 list_add_tail(&buf->list, &vidq->active);
732 spin_unlock_irqrestore(&dev->slock, flags);
733 }
734
735 static int au0828_i2s_init(struct au0828_dev *dev)
736 {
737 /* Enable i2s mode */
738 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
739 return 0;
740 }
741
742 /*
743 * Auvitek au0828 analog stream enable
744 */
745 static int au0828_analog_stream_enable(struct au0828_dev *d)
746 {
747 struct usb_interface *iface;
748 int ret, h, w;
749
750 dprintk(1, "au0828_analog_stream_enable called\n");
751
752 if (test_bit(DEV_DISCONNECTED, &d->dev_state))
753 return -ENODEV;
754
755 iface = usb_ifnum_to_if(d->usbdev, 0);
756 if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) {
757 dprintk(1, "Changing intf#0 to alt 5\n");
758 /* set au0828 interface0 to AS5 here again */
759 ret = usb_set_interface(d->usbdev, 0, 5);
760 if (ret < 0) {
761 pr_info("Au0828 can't set alt setting to 5!\n");
762 return -EBUSY;
763 }
764 }
765
766 h = d->height / 2 + 2;
767 w = d->width * 2;
768
769 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
770 au0828_writereg(d, 0x106, 0x00);
771 /* set x position */
772 au0828_writereg(d, 0x110, 0x00);
773 au0828_writereg(d, 0x111, 0x00);
774 au0828_writereg(d, 0x114, w & 0xff);
775 au0828_writereg(d, 0x115, w >> 8);
776 /* set y position */
777 au0828_writereg(d, 0x112, 0x00);
778 au0828_writereg(d, 0x113, 0x00);
779 au0828_writereg(d, 0x116, h & 0xff);
780 au0828_writereg(d, 0x117, h >> 8);
781 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
782
783 return 0;
784 }
785
786 static int au0828_analog_stream_disable(struct au0828_dev *d)
787 {
788 dprintk(1, "au0828_analog_stream_disable called\n");
789 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
790 return 0;
791 }
792
793 static void au0828_analog_stream_reset(struct au0828_dev *dev)
794 {
795 dprintk(1, "au0828_analog_stream_reset called\n");
796 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
797 mdelay(30);
798 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
799 }
800
801 /*
802 * Some operations needs to stop current streaming
803 */
804 static int au0828_stream_interrupt(struct au0828_dev *dev)
805 {
806 dev->stream_state = STREAM_INTERRUPT;
807 if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
808 return -ENODEV;
809 return 0;
810 }
811
812 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
813 {
814 struct au0828_dev *dev = vb2_get_drv_priv(vq);
815 int rc = 0;
816
817 dprintk(1, "au0828_start_analog_streaming called %d\n",
818 dev->streaming_users);
819
820 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
821 dev->frame_count = 0;
822 else
823 dev->vbi_frame_count = 0;
824
825 if (dev->streaming_users == 0) {
826 /* If we were doing ac97 instead of i2s, it would go here...*/
827 au0828_i2s_init(dev);
828 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
829 AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
830 au0828_isoc_copy);
831 if (rc < 0) {
832 pr_info("au0828_init_isoc failed\n");
833 return rc;
834 }
835
836 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 1);
837
838 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
839 dev->vid_timeout_running = 1;
840 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
841 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
842 dev->vbi_timeout_running = 1;
843 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
844 }
845 }
846 dev->streaming_users++;
847 return rc;
848 }
849
850 static void au0828_stop_streaming(struct vb2_queue *vq)
851 {
852 struct au0828_dev *dev = vb2_get_drv_priv(vq);
853 struct au0828_dmaqueue *vidq = &dev->vidq;
854 unsigned long flags = 0;
855
856 dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users);
857
858 if (dev->streaming_users-- == 1) {
859 au0828_uninit_isoc(dev);
860 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
861 }
862
863 dev->vid_timeout_running = 0;
864 del_timer_sync(&dev->vid_timeout);
865
866 spin_lock_irqsave(&dev->slock, flags);
867 if (dev->isoc_ctl.buf != NULL) {
868 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf,
869 VB2_BUF_STATE_ERROR);
870 dev->isoc_ctl.buf = NULL;
871 }
872 while (!list_empty(&vidq->active)) {
873 struct au0828_buffer *buf;
874
875 buf = list_entry(vidq->active.next, struct au0828_buffer, list);
876 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
877 list_del(&buf->list);
878 }
879 spin_unlock_irqrestore(&dev->slock, flags);
880 }
881
882 void au0828_stop_vbi_streaming(struct vb2_queue *vq)
883 {
884 struct au0828_dev *dev = vb2_get_drv_priv(vq);
885 struct au0828_dmaqueue *vbiq = &dev->vbiq;
886 unsigned long flags = 0;
887
888 dprintk(1, "au0828_stop_vbi_streaming called %d\n",
889 dev->streaming_users);
890
891 if (dev->streaming_users-- == 1) {
892 au0828_uninit_isoc(dev);
893 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
894 }
895
896 spin_lock_irqsave(&dev->slock, flags);
897 if (dev->isoc_ctl.vbi_buf != NULL) {
898 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf,
899 VB2_BUF_STATE_ERROR);
900 dev->isoc_ctl.vbi_buf = NULL;
901 }
902 while (!list_empty(&vbiq->active)) {
903 struct au0828_buffer *buf;
904
905 buf = list_entry(vbiq->active.next, struct au0828_buffer, list);
906 list_del(&buf->list);
907 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
908 }
909 spin_unlock_irqrestore(&dev->slock, flags);
910
911 dev->vbi_timeout_running = 0;
912 del_timer_sync(&dev->vbi_timeout);
913 }
914
915 static const struct vb2_ops au0828_video_qops = {
916 .queue_setup = queue_setup,
917 .buf_prepare = buffer_prepare,
918 .buf_queue = buffer_queue,
919 .start_streaming = au0828_start_analog_streaming,
920 .stop_streaming = au0828_stop_streaming,
921 .wait_prepare = vb2_ops_wait_prepare,
922 .wait_finish = vb2_ops_wait_finish,
923 };
924
925 /* ------------------------------------------------------------------
926 V4L2 interface
927 ------------------------------------------------------------------*/
928 /*
929 * au0828_analog_unregister
930 * unregister v4l2 devices
931 */
932 int au0828_analog_unregister(struct au0828_dev *dev)
933 {
934 dprintk(1, "au0828_analog_unregister called\n");
935
936 /* No analog TV */
937 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
938 return 0;
939
940 mutex_lock(&au0828_sysfs_lock);
941 video_unregister_device(&dev->vdev);
942 video_unregister_device(&dev->vbi_dev);
943 mutex_unlock(&au0828_sysfs_lock);
944
945 v4l2_device_disconnect(&dev->v4l2_dev);
946 v4l2_device_put(&dev->v4l2_dev);
947
948 return 1;
949 }
950
951 /* This function ensures that video frames continue to be delivered even if
952 the ITU-656 input isn't receiving any data (thereby preventing applications
953 such as tvtime from hanging) */
954 static void au0828_vid_buffer_timeout(struct timer_list *t)
955 {
956 struct au0828_dev *dev = from_timer(dev, t, vid_timeout);
957 struct au0828_dmaqueue *dma_q = &dev->vidq;
958 struct au0828_buffer *buf;
959 unsigned char *vid_data;
960 unsigned long flags = 0;
961
962 spin_lock_irqsave(&dev->slock, flags);
963
964 buf = dev->isoc_ctl.buf;
965 if (buf != NULL) {
966 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
967 memset(vid_data, 0x00, buf->length); /* Blank green frame */
968 buffer_filled(dev, dma_q, buf);
969 }
970 get_next_buf(dma_q, &buf);
971
972 if (dev->vid_timeout_running == 1)
973 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
974
975 spin_unlock_irqrestore(&dev->slock, flags);
976 }
977
978 static void au0828_vbi_buffer_timeout(struct timer_list *t)
979 {
980 struct au0828_dev *dev = from_timer(dev, t, vbi_timeout);
981 struct au0828_dmaqueue *dma_q = &dev->vbiq;
982 struct au0828_buffer *buf;
983 unsigned char *vbi_data;
984 unsigned long flags = 0;
985
986 spin_lock_irqsave(&dev->slock, flags);
987
988 buf = dev->isoc_ctl.vbi_buf;
989 if (buf != NULL) {
990 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
991 memset(vbi_data, 0x00, buf->length);
992 buffer_filled(dev, dma_q, buf);
993 }
994 vbi_get_next_buf(dma_q, &buf);
995
996 if (dev->vbi_timeout_running == 1)
997 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
998 spin_unlock_irqrestore(&dev->slock, flags);
999 }
1000
1001 static int au0828_v4l2_open(struct file *filp)
1002 {
1003 struct au0828_dev *dev = video_drvdata(filp);
1004 int ret;
1005
1006 dprintk(1,
1007 "%s called std_set %d dev_state %ld stream users %d users %d\n",
1008 __func__, dev->std_set_in_tuner_core, dev->dev_state,
1009 dev->streaming_users, dev->users);
1010
1011 if (mutex_lock_interruptible(&dev->lock))
1012 return -ERESTARTSYS;
1013
1014 ret = v4l2_fh_open(filp);
1015 if (ret) {
1016 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n",
1017 __func__, ret);
1018 mutex_unlock(&dev->lock);
1019 return ret;
1020 }
1021
1022 if (dev->users == 0) {
1023 au0828_analog_stream_enable(dev);
1024 au0828_analog_stream_reset(dev);
1025 dev->stream_state = STREAM_OFF;
1026 set_bit(DEV_INITIALIZED, &dev->dev_state);
1027 }
1028 dev->users++;
1029 mutex_unlock(&dev->lock);
1030 return ret;
1031 }
1032
1033 static int au0828_v4l2_close(struct file *filp)
1034 {
1035 int ret;
1036 struct au0828_dev *dev = video_drvdata(filp);
1037 struct video_device *vdev = video_devdata(filp);
1038
1039 dprintk(1,
1040 "%s called std_set %d dev_state %ld stream users %d users %d\n",
1041 __func__, dev->std_set_in_tuner_core, dev->dev_state,
1042 dev->streaming_users, dev->users);
1043
1044 mutex_lock(&dev->lock);
1045 if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) {
1046 /* Cancel timeout thread in case they didn't call streamoff */
1047 dev->vid_timeout_running = 0;
1048 del_timer_sync(&dev->vid_timeout);
1049 } else if (vdev->vfl_type == VFL_TYPE_VBI &&
1050 dev->vbi_timeout_running) {
1051 /* Cancel timeout thread in case they didn't call streamoff */
1052 dev->vbi_timeout_running = 0;
1053 del_timer_sync(&dev->vbi_timeout);
1054 }
1055
1056 if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
1057 goto end;
1058
1059 if (dev->users == 1) {
1060 /*
1061 * Avoid putting tuner in sleep if DVB or ALSA are
1062 * streaming.
1063 *
1064 * On most USB devices like au0828 the tuner can
1065 * be safely put in sleep state here if ALSA isn't
1066 * streaming. Exceptions are some very old USB tuner
1067 * models such as em28xx-based WinTV USB2 which have
1068 * a separate audio output jack. The devices that have
1069 * a separate audio output jack have analog tuners,
1070 * like Philips FM1236. Those devices are always on,
1071 * so the s_power callback are silently ignored.
1072 * So, the current logic here does the following:
1073 * Disable (put tuner to sleep) when
1074 * - ALSA and DVB aren't streaming.
1075 * - the last V4L2 file handler is closed.
1076 *
1077 * FIXME:
1078 *
1079 * Additionally, this logic could be improved to
1080 * disable the media source if the above conditions
1081 * are met and if the device:
1082 * - doesn't have a separate audio out plug (or
1083 * - doesn't use a silicon tuner like xc2028/3028/4000/5000).
1084 *
1085 * Once this additional logic is in place, a callback
1086 * is needed to enable the media source and power on
1087 * the tuner, for radio to work.
1088 */
1089 ret = v4l_enable_media_source(vdev);
1090 if (ret == 0)
1091 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner,
1092 standby);
1093 dev->std_set_in_tuner_core = 0;
1094
1095 /* When close the device, set the usb intf0 into alt0 to free
1096 USB bandwidth */
1097 ret = usb_set_interface(dev->usbdev, 0, 0);
1098 if (ret < 0)
1099 pr_info("Au0828 can't set alternate to 0!\n");
1100 }
1101 end:
1102 _vb2_fop_release(filp, NULL);
1103 dev->users--;
1104 mutex_unlock(&dev->lock);
1105 return 0;
1106 }
1107
1108 /* Must be called with dev->lock held */
1109 static void au0828_init_tuner(struct au0828_dev *dev)
1110 {
1111 struct v4l2_frequency f = {
1112 .frequency = dev->ctrl_freq,
1113 .type = V4L2_TUNER_ANALOG_TV,
1114 };
1115
1116 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1117 dev->std_set_in_tuner_core, dev->dev_state);
1118
1119 if (dev->std_set_in_tuner_core)
1120 return;
1121 dev->std_set_in_tuner_core = 1;
1122 i2c_gate_ctrl(dev, 1);
1123 /* If we've never sent the standard in tuner core, do so now.
1124 We don't do this at device probe because we don't want to
1125 incur the cost of a firmware load */
1126 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std);
1127 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
1128 i2c_gate_ctrl(dev, 0);
1129 }
1130
1131 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
1132 struct v4l2_format *format)
1133 {
1134 int ret;
1135 int width = format->fmt.pix.width;
1136 int height = format->fmt.pix.height;
1137
1138 /* If they are demanding a format other than the one we support,
1139 bail out (tvtime asks for UYVY and then retries with YUYV) */
1140 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)
1141 return -EINVAL;
1142
1143 /* format->fmt.pix.width only support 720 and height 480 */
1144 if (width != 720)
1145 width = 720;
1146 if (height != 480)
1147 height = 480;
1148
1149 format->fmt.pix.width = width;
1150 format->fmt.pix.height = height;
1151 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1152 format->fmt.pix.bytesperline = width * 2;
1153 format->fmt.pix.sizeimage = width * height * 2;
1154 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1155 format->fmt.pix.field = V4L2_FIELD_INTERLACED;
1156
1157 if (cmd == VIDIOC_TRY_FMT)
1158 return 0;
1159
1160 /* maybe set new image format, driver current only support 720*480 */
1161 dev->width = width;
1162 dev->height = height;
1163 dev->frame_size = width * height * 2;
1164 dev->field_size = width * height;
1165 dev->bytesperline = width * 2;
1166
1167 if (dev->stream_state == STREAM_ON) {
1168 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
1169 ret = au0828_stream_interrupt(dev);
1170 if (ret != 0) {
1171 dprintk(1, "error interrupting video stream!\n");
1172 return ret;
1173 }
1174 }
1175
1176 au0828_analog_stream_enable(dev);
1177
1178 return 0;
1179 }
1180
1181 static int vidioc_querycap(struct file *file, void *priv,
1182 struct v4l2_capability *cap)
1183 {
1184 struct au0828_dev *dev = video_drvdata(file);
1185
1186 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1187 dev->std_set_in_tuner_core, dev->dev_state);
1188
1189 strscpy(cap->driver, "au0828", sizeof(cap->driver));
1190 strscpy(cap->card, dev->board.name, sizeof(cap->card));
1191 usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info));
1192
1193 /* set the device capabilities */
1194 cap->capabilities =
1195 V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1196 V4L2_CAP_TUNER | V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE |
1197 V4L2_CAP_DEVICE_CAPS;
1198 return 0;
1199 }
1200
1201 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1202 struct v4l2_fmtdesc *f)
1203 {
1204 if (f->index)
1205 return -EINVAL;
1206
1207 dprintk(1, "%s called\n", __func__);
1208
1209 f->pixelformat = V4L2_PIX_FMT_UYVY;
1210
1211 return 0;
1212 }
1213
1214 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1215 struct v4l2_format *f)
1216 {
1217 struct au0828_dev *dev = video_drvdata(file);
1218
1219 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1220 dev->std_set_in_tuner_core, dev->dev_state);
1221
1222 f->fmt.pix.width = dev->width;
1223 f->fmt.pix.height = dev->height;
1224 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1225 f->fmt.pix.bytesperline = dev->bytesperline;
1226 f->fmt.pix.sizeimage = dev->frame_size;
1227 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
1228 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1229 return 0;
1230 }
1231
1232 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1233 struct v4l2_format *f)
1234 {
1235 struct au0828_dev *dev = video_drvdata(file);
1236
1237 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1238 dev->std_set_in_tuner_core, dev->dev_state);
1239
1240 return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
1241 }
1242
1243 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1244 struct v4l2_format *f)
1245 {
1246 struct au0828_dev *dev = video_drvdata(file);
1247 int rc;
1248
1249 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1250 dev->std_set_in_tuner_core, dev->dev_state);
1251
1252 rc = check_dev(dev);
1253 if (rc < 0)
1254 return rc;
1255
1256 if (vb2_is_busy(&dev->vb_vidq)) {
1257 pr_info("%s queue busy\n", __func__);
1258 rc = -EBUSY;
1259 goto out;
1260 }
1261
1262 rc = au0828_set_format(dev, VIDIOC_S_FMT, f);
1263 out:
1264 return rc;
1265 }
1266
1267 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
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 if (norm == dev->std)
1275 return 0;
1276
1277 if (dev->streaming_users > 0)
1278 return -EBUSY;
1279
1280 dev->std = norm;
1281
1282 au0828_init_tuner(dev);
1283
1284 i2c_gate_ctrl(dev, 1);
1285
1286 /*
1287 * FIXME: when we support something other than 60Hz standards,
1288 * we are going to have to make the au0828 bridge adjust the size
1289 * of its capture buffer, which is currently hardcoded at 720x480
1290 */
1291
1292 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm);
1293
1294 i2c_gate_ctrl(dev, 0);
1295
1296 return 0;
1297 }
1298
1299 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
1300 {
1301 struct au0828_dev *dev = video_drvdata(file);
1302
1303 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1304 dev->std_set_in_tuner_core, dev->dev_state);
1305
1306 *norm = dev->std;
1307 return 0;
1308 }
1309
1310 static int vidioc_enum_input(struct file *file, void *priv,
1311 struct v4l2_input *input)
1312 {
1313 struct au0828_dev *dev = video_drvdata(file);
1314 unsigned int tmp;
1315
1316 static const char *inames[] = {
1317 [AU0828_VMUX_UNDEFINED] = "Undefined",
1318 [AU0828_VMUX_COMPOSITE] = "Composite",
1319 [AU0828_VMUX_SVIDEO] = "S-Video",
1320 [AU0828_VMUX_CABLE] = "Cable TV",
1321 [AU0828_VMUX_TELEVISION] = "Television",
1322 [AU0828_VMUX_DVB] = "DVB",
1323 };
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 tmp = input->index;
1329
1330 if (tmp >= AU0828_MAX_INPUT)
1331 return -EINVAL;
1332 if (AUVI_INPUT(tmp).type == 0)
1333 return -EINVAL;
1334
1335 input->index = tmp;
1336 strscpy(input->name, inames[AUVI_INPUT(tmp).type], sizeof(input->name));
1337 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
1338 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) {
1339 input->type |= V4L2_INPUT_TYPE_TUNER;
1340 input->audioset = 1;
1341 } else {
1342 input->type |= V4L2_INPUT_TYPE_CAMERA;
1343 input->audioset = 2;
1344 }
1345
1346 input->std = dev->vdev.tvnorms;
1347
1348 return 0;
1349 }
1350
1351 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1352 {
1353 struct au0828_dev *dev = video_drvdata(file);
1354
1355 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1356 dev->std_set_in_tuner_core, dev->dev_state);
1357
1358 *i = dev->ctrl_input;
1359 return 0;
1360 }
1361
1362 static void au0828_s_input(struct au0828_dev *dev, int index)
1363 {
1364 int i;
1365
1366 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1367 dev->std_set_in_tuner_core, dev->dev_state);
1368
1369 switch (AUVI_INPUT(index).type) {
1370 case AU0828_VMUX_SVIDEO:
1371 dev->input_type = AU0828_VMUX_SVIDEO;
1372 dev->ctrl_ainput = 1;
1373 break;
1374 case AU0828_VMUX_COMPOSITE:
1375 dev->input_type = AU0828_VMUX_COMPOSITE;
1376 dev->ctrl_ainput = 1;
1377 break;
1378 case AU0828_VMUX_TELEVISION:
1379 dev->input_type = AU0828_VMUX_TELEVISION;
1380 dev->ctrl_ainput = 0;
1381 break;
1382 default:
1383 dprintk(1, "unknown input type set [%d]\n",
1384 AUVI_INPUT(index).type);
1385 return;
1386 }
1387
1388 dev->ctrl_input = index;
1389
1390 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
1391 AUVI_INPUT(index).vmux, 0, 0);
1392
1393 for (i = 0; i < AU0828_MAX_INPUT; i++) {
1394 int enable = 0;
1395 if (AUVI_INPUT(i).audio_setup == NULL)
1396 continue;
1397
1398 if (i == index)
1399 enable = 1;
1400 else
1401 enable = 0;
1402 if (enable) {
1403 (AUVI_INPUT(i).audio_setup)(dev, enable);
1404 } else {
1405 /* Make sure we leave it turned on if some
1406 other input is routed to this callback */
1407 if ((AUVI_INPUT(i).audio_setup) !=
1408 ((AUVI_INPUT(index).audio_setup))) {
1409 (AUVI_INPUT(i).audio_setup)(dev, enable);
1410 }
1411 }
1412 }
1413
1414 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
1415 AUVI_INPUT(index).amux, 0, 0);
1416 }
1417
1418 static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
1419 {
1420 struct au0828_dev *dev = video_drvdata(file);
1421 struct video_device *vfd = video_devdata(file);
1422
1423 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
1424 index);
1425 if (index >= AU0828_MAX_INPUT)
1426 return -EINVAL;
1427 if (AUVI_INPUT(index).type == 0)
1428 return -EINVAL;
1429
1430 if (dev->ctrl_input == index)
1431 return 0;
1432
1433 au0828_s_input(dev, index);
1434
1435 /*
1436 * Input has been changed. Disable the media source
1437 * associated with the old input and enable source
1438 * for the newly set input
1439 */
1440 v4l_disable_media_source(vfd);
1441 return v4l_enable_media_source(vfd);
1442 }
1443
1444 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a)
1445 {
1446 if (a->index > 1)
1447 return -EINVAL;
1448
1449 dprintk(1, "%s called\n", __func__);
1450
1451 if (a->index == 0)
1452 strscpy(a->name, "Television", sizeof(a->name));
1453 else
1454 strscpy(a->name, "Line in", sizeof(a->name));
1455
1456 a->capability = V4L2_AUDCAP_STEREO;
1457 return 0;
1458 }
1459
1460 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1461 {
1462 struct au0828_dev *dev = video_drvdata(file);
1463
1464 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1465 dev->std_set_in_tuner_core, dev->dev_state);
1466
1467 a->index = dev->ctrl_ainput;
1468 if (a->index == 0)
1469 strscpy(a->name, "Television", sizeof(a->name));
1470 else
1471 strscpy(a->name, "Line in", sizeof(a->name));
1472
1473 a->capability = V4L2_AUDCAP_STEREO;
1474 return 0;
1475 }
1476
1477 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)
1478 {
1479 struct au0828_dev *dev = video_drvdata(file);
1480
1481 if (a->index != dev->ctrl_ainput)
1482 return -EINVAL;
1483
1484 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1485 dev->std_set_in_tuner_core, dev->dev_state);
1486 return 0;
1487 }
1488
1489 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1490 {
1491 struct au0828_dev *dev = video_drvdata(file);
1492 struct video_device *vfd = video_devdata(file);
1493 int ret;
1494
1495 if (t->index != 0)
1496 return -EINVAL;
1497
1498 ret = v4l_enable_media_source(vfd);
1499 if (ret)
1500 return ret;
1501
1502 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1503 dev->std_set_in_tuner_core, dev->dev_state);
1504
1505 strscpy(t->name, "Auvitek tuner", sizeof(t->name));
1506
1507 au0828_init_tuner(dev);
1508 i2c_gate_ctrl(dev, 1);
1509 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1510 i2c_gate_ctrl(dev, 0);
1511 return 0;
1512 }
1513
1514 static int vidioc_s_tuner(struct file *file, void *priv,
1515 const struct v4l2_tuner *t)
1516 {
1517 struct au0828_dev *dev = video_drvdata(file);
1518
1519 if (t->index != 0)
1520 return -EINVAL;
1521
1522 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1523 dev->std_set_in_tuner_core, dev->dev_state);
1524
1525 au0828_init_tuner(dev);
1526 i2c_gate_ctrl(dev, 1);
1527 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1528 i2c_gate_ctrl(dev, 0);
1529
1530 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
1531 t->afc);
1532
1533 return 0;
1534
1535 }
1536
1537 static int vidioc_g_frequency(struct file *file, void *priv,
1538 struct v4l2_frequency *freq)
1539 {
1540 struct au0828_dev *dev = video_drvdata(file);
1541
1542 if (freq->tuner != 0)
1543 return -EINVAL;
1544 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1545 dev->std_set_in_tuner_core, dev->dev_state);
1546 freq->frequency = dev->ctrl_freq;
1547 return 0;
1548 }
1549
1550 static int vidioc_s_frequency(struct file *file, void *priv,
1551 const struct v4l2_frequency *freq)
1552 {
1553 struct au0828_dev *dev = video_drvdata(file);
1554 struct v4l2_frequency new_freq = *freq;
1555
1556 if (freq->tuner != 0)
1557 return -EINVAL;
1558
1559 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1560 dev->std_set_in_tuner_core, dev->dev_state);
1561
1562 au0828_init_tuner(dev);
1563 i2c_gate_ctrl(dev, 1);
1564
1565 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
1566 /* Get the actual set (and possibly clamped) frequency */
1567 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
1568 dev->ctrl_freq = new_freq.frequency;
1569
1570 i2c_gate_ctrl(dev, 0);
1571
1572 au0828_analog_stream_reset(dev);
1573
1574 return 0;
1575 }
1576
1577
1578 /* RAW VBI ioctls */
1579
1580 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1581 struct v4l2_format *format)
1582 {
1583 struct au0828_dev *dev = video_drvdata(file);
1584
1585 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1586 dev->std_set_in_tuner_core, dev->dev_state);
1587
1588 format->fmt.vbi.samples_per_line = dev->vbi_width;
1589 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1590 format->fmt.vbi.offset = 0;
1591 format->fmt.vbi.flags = 0;
1592 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
1593
1594 format->fmt.vbi.count[0] = dev->vbi_height;
1595 format->fmt.vbi.count[1] = dev->vbi_height;
1596 format->fmt.vbi.start[0] = 21;
1597 format->fmt.vbi.start[1] = 284;
1598 memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
1599
1600 return 0;
1601 }
1602
1603 static int vidioc_g_pixelaspect(struct file *file, void *priv,
1604 int type, struct v4l2_fract *f)
1605 {
1606 struct au0828_dev *dev = video_drvdata(file);
1607
1608 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1609 return -EINVAL;
1610
1611 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1612 dev->std_set_in_tuner_core, dev->dev_state);
1613
1614 f->numerator = 54;
1615 f->denominator = 59;
1616
1617 return 0;
1618 }
1619
1620 static int vidioc_g_selection(struct file *file, void *priv,
1621 struct v4l2_selection *s)
1622 {
1623 struct au0828_dev *dev = video_drvdata(file);
1624
1625 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1626 return -EINVAL;
1627
1628 switch (s->target) {
1629 case V4L2_SEL_TGT_CROP_BOUNDS:
1630 case V4L2_SEL_TGT_CROP_DEFAULT:
1631 s->r.left = 0;
1632 s->r.top = 0;
1633 s->r.width = dev->width;
1634 s->r.height = dev->height;
1635 break;
1636 default:
1637 return -EINVAL;
1638 }
1639 return 0;
1640 }
1641
1642 #ifdef CONFIG_VIDEO_ADV_DEBUG
1643 static int vidioc_g_register(struct file *file, void *priv,
1644 struct v4l2_dbg_register *reg)
1645 {
1646 struct au0828_dev *dev = video_drvdata(file);
1647
1648 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1649 dev->std_set_in_tuner_core, dev->dev_state);
1650
1651 reg->val = au0828_read(dev, reg->reg);
1652 reg->size = 1;
1653 return 0;
1654 }
1655
1656 static int vidioc_s_register(struct file *file, void *priv,
1657 const struct v4l2_dbg_register *reg)
1658 {
1659 struct au0828_dev *dev = video_drvdata(file);
1660
1661 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1662 dev->std_set_in_tuner_core, dev->dev_state);
1663
1664 return au0828_writereg(dev, reg->reg, reg->val);
1665 }
1666 #endif
1667
1668 static int vidioc_log_status(struct file *file, void *fh)
1669 {
1670 struct video_device *vdev = video_devdata(file);
1671
1672 dprintk(1, "%s called\n", __func__);
1673
1674 v4l2_ctrl_log_status(file, fh);
1675 v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status);
1676 return 0;
1677 }
1678
1679 void au0828_v4l2_suspend(struct au0828_dev *dev)
1680 {
1681 struct urb *urb;
1682 int i;
1683
1684 pr_info("stopping V4L2\n");
1685
1686 if (dev->stream_state == STREAM_ON) {
1687 pr_info("stopping V4L2 active URBs\n");
1688 au0828_analog_stream_disable(dev);
1689 /* stop urbs */
1690 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1691 urb = dev->isoc_ctl.urb[i];
1692 if (urb) {
1693 if (!irqs_disabled())
1694 usb_kill_urb(urb);
1695 else
1696 usb_unlink_urb(urb);
1697 }
1698 }
1699 }
1700
1701 if (dev->vid_timeout_running)
1702 del_timer_sync(&dev->vid_timeout);
1703 if (dev->vbi_timeout_running)
1704 del_timer_sync(&dev->vbi_timeout);
1705 }
1706
1707 void au0828_v4l2_resume(struct au0828_dev *dev)
1708 {
1709 int i, rc;
1710
1711 pr_info("restarting V4L2\n");
1712
1713 if (dev->stream_state == STREAM_ON) {
1714 au0828_stream_interrupt(dev);
1715 au0828_init_tuner(dev);
1716 }
1717
1718 if (dev->vid_timeout_running)
1719 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
1720 if (dev->vbi_timeout_running)
1721 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1722
1723 /* If we were doing ac97 instead of i2s, it would go here...*/
1724 au0828_i2s_init(dev);
1725
1726 au0828_analog_stream_enable(dev);
1727
1728 if (!(dev->stream_state == STREAM_ON)) {
1729 au0828_analog_stream_reset(dev);
1730 /* submit urbs */
1731 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1732 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
1733 if (rc) {
1734 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
1735 i, rc);
1736 au0828_uninit_isoc(dev);
1737 }
1738 }
1739 }
1740 }
1741
1742 static const struct v4l2_file_operations au0828_v4l_fops = {
1743 .owner = THIS_MODULE,
1744 .open = au0828_v4l2_open,
1745 .release = au0828_v4l2_close,
1746 .read = vb2_fop_read,
1747 .poll = vb2_fop_poll,
1748 .mmap = vb2_fop_mmap,
1749 .unlocked_ioctl = video_ioctl2,
1750 };
1751
1752 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1753 .vidioc_querycap = vidioc_querycap,
1754 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1755 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1756 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1757 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1758 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1759 .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1760 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
1761 .vidioc_enumaudio = vidioc_enumaudio,
1762 .vidioc_g_audio = vidioc_g_audio,
1763 .vidioc_s_audio = vidioc_s_audio,
1764 .vidioc_g_pixelaspect = vidioc_g_pixelaspect,
1765 .vidioc_g_selection = vidioc_g_selection,
1766
1767 .vidioc_reqbufs = vb2_ioctl_reqbufs,
1768 .vidioc_create_bufs = vb2_ioctl_create_bufs,
1769 .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
1770 .vidioc_querybuf = vb2_ioctl_querybuf,
1771 .vidioc_qbuf = vb2_ioctl_qbuf,
1772 .vidioc_dqbuf = vb2_ioctl_dqbuf,
1773 .vidioc_expbuf = vb2_ioctl_expbuf,
1774
1775 .vidioc_s_std = vidioc_s_std,
1776 .vidioc_g_std = vidioc_g_std,
1777 .vidioc_enum_input = vidioc_enum_input,
1778 .vidioc_g_input = vidioc_g_input,
1779 .vidioc_s_input = vidioc_s_input,
1780
1781 .vidioc_streamon = vb2_ioctl_streamon,
1782 .vidioc_streamoff = vb2_ioctl_streamoff,
1783
1784 .vidioc_g_tuner = vidioc_g_tuner,
1785 .vidioc_s_tuner = vidioc_s_tuner,
1786 .vidioc_g_frequency = vidioc_g_frequency,
1787 .vidioc_s_frequency = vidioc_s_frequency,
1788 #ifdef CONFIG_VIDEO_ADV_DEBUG
1789 .vidioc_g_register = vidioc_g_register,
1790 .vidioc_s_register = vidioc_s_register,
1791 #endif
1792 .vidioc_log_status = vidioc_log_status,
1793 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1794 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1795 };
1796
1797 static const struct video_device au0828_video_template = {
1798 .fops = &au0828_v4l_fops,
1799 .release = video_device_release_empty,
1800 .ioctl_ops = &video_ioctl_ops,
1801 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M,
1802 };
1803
1804 static int au0828_vb2_setup(struct au0828_dev *dev)
1805 {
1806 int rc;
1807 struct vb2_queue *q;
1808
1809 /* Setup Videobuf2 for Video capture */
1810 q = &dev->vb_vidq;
1811 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1812 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1813 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1814 q->drv_priv = dev;
1815 q->buf_struct_size = sizeof(struct au0828_buffer);
1816 q->ops = &au0828_video_qops;
1817 q->mem_ops = &vb2_vmalloc_memops;
1818
1819 rc = vb2_queue_init(q);
1820 if (rc < 0)
1821 return rc;
1822
1823 /* Setup Videobuf2 for VBI capture */
1824 q = &dev->vb_vbiq;
1825 q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1826 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1827 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1828 q->drv_priv = dev;
1829 q->buf_struct_size = sizeof(struct au0828_buffer);
1830 q->ops = &au0828_vbi_qops;
1831 q->mem_ops = &vb2_vmalloc_memops;
1832
1833 rc = vb2_queue_init(q);
1834 if (rc < 0)
1835 return rc;
1836
1837 return 0;
1838 }
1839
1840 static void au0828_analog_create_entities(struct au0828_dev *dev)
1841 {
1842 #if defined(CONFIG_MEDIA_CONTROLLER)
1843 static const char * const inames[] = {
1844 [AU0828_VMUX_COMPOSITE] = "Composite",
1845 [AU0828_VMUX_SVIDEO] = "S-Video",
1846 [AU0828_VMUX_CABLE] = "Cable TV",
1847 [AU0828_VMUX_TELEVISION] = "Television",
1848 [AU0828_VMUX_DVB] = "DVB",
1849 };
1850 int ret, i;
1851
1852 /* Initialize Video and VBI pads */
1853 dev->video_pad.flags = MEDIA_PAD_FL_SINK;
1854 ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad);
1855 if (ret < 0)
1856 pr_err("failed to initialize video media entity!\n");
1857
1858 dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
1859 ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad);
1860 if (ret < 0)
1861 pr_err("failed to initialize vbi media entity!\n");
1862
1863 /* Create entities for each input connector */
1864 for (i = 0; i < AU0828_MAX_INPUT; i++) {
1865 struct media_entity *ent = &dev->input_ent[i];
1866
1867 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
1868 break;
1869
1870 ent->name = inames[AUVI_INPUT(i).type];
1871 ent->flags = MEDIA_ENT_FL_CONNECTOR;
1872 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
1873
1874 switch (AUVI_INPUT(i).type) {
1875 case AU0828_VMUX_COMPOSITE:
1876 ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
1877 break;
1878 case AU0828_VMUX_SVIDEO:
1879 ent->function = MEDIA_ENT_F_CONN_SVIDEO;
1880 break;
1881 case AU0828_VMUX_CABLE:
1882 case AU0828_VMUX_TELEVISION:
1883 case AU0828_VMUX_DVB:
1884 default: /* Just to shut up a warning */
1885 ent->function = MEDIA_ENT_F_CONN_RF;
1886 break;
1887 }
1888
1889 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
1890 if (ret < 0)
1891 pr_err("failed to initialize input pad[%d]!\n", i);
1892
1893 ret = media_device_register_entity(dev->media_dev, ent);
1894 if (ret < 0)
1895 pr_err("failed to register input entity %d!\n", i);
1896 }
1897 #endif
1898 }
1899
1900 /**************************************************************************/
1901
1902 int au0828_analog_register(struct au0828_dev *dev,
1903 struct usb_interface *interface)
1904 {
1905 int retval = -ENOMEM;
1906 struct usb_host_interface *iface_desc;
1907 struct usb_endpoint_descriptor *endpoint;
1908 int i, ret;
1909
1910 dprintk(1, "au0828_analog_register called for intf#%d!\n",
1911 interface->cur_altsetting->desc.bInterfaceNumber);
1912
1913 /* No analog TV */
1914 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
1915 return 0;
1916
1917 /* set au0828 usb interface0 to as5 */
1918 retval = usb_set_interface(dev->usbdev,
1919 interface->cur_altsetting->desc.bInterfaceNumber, 5);
1920 if (retval != 0) {
1921 pr_info("Failure setting usb interface0 to as5\n");
1922 return retval;
1923 }
1924
1925 /* Figure out which endpoint has the isoc interface */
1926 iface_desc = interface->cur_altsetting;
1927 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
1928 endpoint = &iface_desc->endpoint[i].desc;
1929 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1930 == USB_DIR_IN) &&
1931 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1932 == USB_ENDPOINT_XFER_ISOC)) {
1933
1934 /* we find our isoc in endpoint */
1935 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
1936 dev->max_pkt_size = (tmp & 0x07ff) *
1937 (((tmp & 0x1800) >> 11) + 1);
1938 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
1939 dprintk(1,
1940 "Found isoc endpoint 0x%02x, max size = %d\n",
1941 dev->isoc_in_endpointaddr, dev->max_pkt_size);
1942 }
1943 }
1944 if (!(dev->isoc_in_endpointaddr)) {
1945 pr_info("Could not locate isoc endpoint\n");
1946 return -ENODEV;
1947 }
1948
1949 init_waitqueue_head(&dev->open);
1950 spin_lock_init(&dev->slock);
1951
1952 /* init video dma queues */
1953 INIT_LIST_HEAD(&dev->vidq.active);
1954 INIT_LIST_HEAD(&dev->vbiq.active);
1955
1956 timer_setup(&dev->vid_timeout, au0828_vid_buffer_timeout, 0);
1957 timer_setup(&dev->vbi_timeout, au0828_vbi_buffer_timeout, 0);
1958
1959 dev->width = NTSC_STD_W;
1960 dev->height = NTSC_STD_H;
1961 dev->field_size = dev->width * dev->height;
1962 dev->frame_size = dev->field_size << 1;
1963 dev->bytesperline = dev->width << 1;
1964 dev->vbi_width = 720;
1965 dev->vbi_height = 1;
1966 dev->ctrl_ainput = 0;
1967 dev->ctrl_freq = 960;
1968 dev->std = V4L2_STD_NTSC_M;
1969 /* Default input is TV Tuner */
1970 au0828_s_input(dev, 0);
1971
1972 mutex_init(&dev->vb_queue_lock);
1973 mutex_init(&dev->vb_vbi_queue_lock);
1974
1975 /* Fill the video capture device struct */
1976 dev->vdev = au0828_video_template;
1977 dev->vdev.v4l2_dev = &dev->v4l2_dev;
1978 dev->vdev.lock = &dev->lock;
1979 dev->vdev.queue = &dev->vb_vidq;
1980 dev->vdev.queue->lock = &dev->vb_queue_lock;
1981 dev->vdev.device_caps =
1982 V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1983 V4L2_CAP_TUNER | V4L2_CAP_VIDEO_CAPTURE;
1984 strscpy(dev->vdev.name, "au0828a video", sizeof(dev->vdev.name));
1985
1986 /* Setup the VBI device */
1987 dev->vbi_dev = au0828_video_template;
1988 dev->vbi_dev.v4l2_dev = &dev->v4l2_dev;
1989 dev->vbi_dev.lock = &dev->lock;
1990 dev->vbi_dev.queue = &dev->vb_vbiq;
1991 dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock;
1992 dev->vbi_dev.device_caps =
1993 V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1994 V4L2_CAP_TUNER | V4L2_CAP_VBI_CAPTURE;
1995 strscpy(dev->vbi_dev.name, "au0828a vbi", sizeof(dev->vbi_dev.name));
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