treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
[sfrench/cifs-2.6.git] / drivers / media / usb / au0828 / au0828-video.c
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         format->fmt.pix.priv = 0;
1157
1158         if (cmd == VIDIOC_TRY_FMT)
1159                 return 0;
1160
1161         /* maybe set new image format, driver current only support 720*480 */
1162         dev->width = width;
1163         dev->height = height;
1164         dev->frame_size = width * height * 2;
1165         dev->field_size = width * height;
1166         dev->bytesperline = width * 2;
1167
1168         if (dev->stream_state == STREAM_ON) {
1169                 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
1170                 ret = au0828_stream_interrupt(dev);
1171                 if (ret != 0) {
1172                         dprintk(1, "error interrupting video stream!\n");
1173                         return ret;
1174                 }
1175         }
1176
1177         au0828_analog_stream_enable(dev);
1178
1179         return 0;
1180 }
1181
1182 static int vidioc_querycap(struct file *file, void  *priv,
1183                            struct v4l2_capability *cap)
1184 {
1185         struct video_device *vdev = video_devdata(file);
1186         struct au0828_dev *dev = video_drvdata(file);
1187
1188         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1189                 dev->std_set_in_tuner_core, dev->dev_state);
1190
1191         strscpy(cap->driver, "au0828", sizeof(cap->driver));
1192         strscpy(cap->card, dev->board.name, sizeof(cap->card));
1193         usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info));
1194
1195         /* set the device capabilities */
1196         cap->device_caps = V4L2_CAP_AUDIO |
1197                 V4L2_CAP_READWRITE |
1198                 V4L2_CAP_STREAMING |
1199                 V4L2_CAP_TUNER;
1200         if (vdev->vfl_type == VFL_TYPE_GRABBER)
1201                 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
1202         else
1203                 cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
1204         cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS |
1205                 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE;
1206         return 0;
1207 }
1208
1209 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1210                                         struct v4l2_fmtdesc *f)
1211 {
1212         if (f->index)
1213                 return -EINVAL;
1214
1215         dprintk(1, "%s called\n", __func__);
1216
1217         f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1218         strscpy(f->description, "Packed YUV2", sizeof(f->description));
1219
1220         f->flags = 0;
1221         f->pixelformat = V4L2_PIX_FMT_UYVY;
1222
1223         return 0;
1224 }
1225
1226 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1227                                         struct v4l2_format *f)
1228 {
1229         struct au0828_dev *dev = video_drvdata(file);
1230
1231         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1232                 dev->std_set_in_tuner_core, dev->dev_state);
1233
1234         f->fmt.pix.width = dev->width;
1235         f->fmt.pix.height = dev->height;
1236         f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1237         f->fmt.pix.bytesperline = dev->bytesperline;
1238         f->fmt.pix.sizeimage = dev->frame_size;
1239         f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
1240         f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1241         f->fmt.pix.priv = 0;
1242         return 0;
1243 }
1244
1245 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1246                                   struct v4l2_format *f)
1247 {
1248         struct au0828_dev *dev = video_drvdata(file);
1249
1250         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1251                 dev->std_set_in_tuner_core, dev->dev_state);
1252
1253         return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
1254 }
1255
1256 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1257                                 struct v4l2_format *f)
1258 {
1259         struct au0828_dev *dev = video_drvdata(file);
1260         int rc;
1261
1262         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1263                 dev->std_set_in_tuner_core, dev->dev_state);
1264
1265         rc = check_dev(dev);
1266         if (rc < 0)
1267                 return rc;
1268
1269         if (vb2_is_busy(&dev->vb_vidq)) {
1270                 pr_info("%s queue busy\n", __func__);
1271                 rc = -EBUSY;
1272                 goto out;
1273         }
1274
1275         rc = au0828_set_format(dev, VIDIOC_S_FMT, f);
1276 out:
1277         return rc;
1278 }
1279
1280 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
1281 {
1282         struct au0828_dev *dev = video_drvdata(file);
1283
1284         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1285                 dev->std_set_in_tuner_core, dev->dev_state);
1286
1287         if (norm == dev->std)
1288                 return 0;
1289
1290         if (dev->streaming_users > 0)
1291                 return -EBUSY;
1292
1293         dev->std = norm;
1294
1295         au0828_init_tuner(dev);
1296
1297         i2c_gate_ctrl(dev, 1);
1298
1299         /*
1300          * FIXME: when we support something other than 60Hz standards,
1301          * we are going to have to make the au0828 bridge adjust the size
1302          * of its capture buffer, which is currently hardcoded at 720x480
1303          */
1304
1305         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm);
1306
1307         i2c_gate_ctrl(dev, 0);
1308
1309         return 0;
1310 }
1311
1312 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
1313 {
1314         struct au0828_dev *dev = video_drvdata(file);
1315
1316         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1317                 dev->std_set_in_tuner_core, dev->dev_state);
1318
1319         *norm = dev->std;
1320         return 0;
1321 }
1322
1323 static int vidioc_enum_input(struct file *file, void *priv,
1324                                 struct v4l2_input *input)
1325 {
1326         struct au0828_dev *dev = video_drvdata(file);
1327         unsigned int tmp;
1328
1329         static const char *inames[] = {
1330                 [AU0828_VMUX_UNDEFINED] = "Undefined",
1331                 [AU0828_VMUX_COMPOSITE] = "Composite",
1332                 [AU0828_VMUX_SVIDEO] = "S-Video",
1333                 [AU0828_VMUX_CABLE] = "Cable TV",
1334                 [AU0828_VMUX_TELEVISION] = "Television",
1335                 [AU0828_VMUX_DVB] = "DVB",
1336         };
1337
1338         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1339                 dev->std_set_in_tuner_core, dev->dev_state);
1340
1341         tmp = input->index;
1342
1343         if (tmp >= AU0828_MAX_INPUT)
1344                 return -EINVAL;
1345         if (AUVI_INPUT(tmp).type == 0)
1346                 return -EINVAL;
1347
1348         input->index = tmp;
1349         strscpy(input->name, inames[AUVI_INPUT(tmp).type], sizeof(input->name));
1350         if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
1351             (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) {
1352                 input->type |= V4L2_INPUT_TYPE_TUNER;
1353                 input->audioset = 1;
1354         } else {
1355                 input->type |= V4L2_INPUT_TYPE_CAMERA;
1356                 input->audioset = 2;
1357         }
1358
1359         input->std = dev->vdev.tvnorms;
1360
1361         return 0;
1362 }
1363
1364 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1365 {
1366         struct au0828_dev *dev = video_drvdata(file);
1367
1368         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1369                 dev->std_set_in_tuner_core, dev->dev_state);
1370
1371         *i = dev->ctrl_input;
1372         return 0;
1373 }
1374
1375 static void au0828_s_input(struct au0828_dev *dev, int index)
1376 {
1377         int i;
1378
1379         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1380                 dev->std_set_in_tuner_core, dev->dev_state);
1381
1382         switch (AUVI_INPUT(index).type) {
1383         case AU0828_VMUX_SVIDEO:
1384                 dev->input_type = AU0828_VMUX_SVIDEO;
1385                 dev->ctrl_ainput = 1;
1386                 break;
1387         case AU0828_VMUX_COMPOSITE:
1388                 dev->input_type = AU0828_VMUX_COMPOSITE;
1389                 dev->ctrl_ainput = 1;
1390                 break;
1391         case AU0828_VMUX_TELEVISION:
1392                 dev->input_type = AU0828_VMUX_TELEVISION;
1393                 dev->ctrl_ainput = 0;
1394                 break;
1395         default:
1396                 dprintk(1, "unknown input type set [%d]\n",
1397                         AUVI_INPUT(index).type);
1398                 return;
1399         }
1400
1401         dev->ctrl_input = index;
1402
1403         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
1404                         AUVI_INPUT(index).vmux, 0, 0);
1405
1406         for (i = 0; i < AU0828_MAX_INPUT; i++) {
1407                 int enable = 0;
1408                 if (AUVI_INPUT(i).audio_setup == NULL)
1409                         continue;
1410
1411                 if (i == index)
1412                         enable = 1;
1413                 else
1414                         enable = 0;
1415                 if (enable) {
1416                         (AUVI_INPUT(i).audio_setup)(dev, enable);
1417                 } else {
1418                         /* Make sure we leave it turned on if some
1419                            other input is routed to this callback */
1420                         if ((AUVI_INPUT(i).audio_setup) !=
1421                             ((AUVI_INPUT(index).audio_setup))) {
1422                                 (AUVI_INPUT(i).audio_setup)(dev, enable);
1423                         }
1424                 }
1425         }
1426
1427         v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
1428                         AUVI_INPUT(index).amux, 0, 0);
1429 }
1430
1431 static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
1432 {
1433         struct au0828_dev *dev = video_drvdata(file);
1434         struct video_device *vfd = video_devdata(file);
1435
1436         dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
1437                 index);
1438         if (index >= AU0828_MAX_INPUT)
1439                 return -EINVAL;
1440         if (AUVI_INPUT(index).type == 0)
1441                 return -EINVAL;
1442
1443         if (dev->ctrl_input == index)
1444                 return 0;
1445
1446         au0828_s_input(dev, index);
1447
1448         /*
1449          * Input has been changed. Disable the media source
1450          * associated with the old input and enable source
1451          * for the newly set input
1452          */
1453         v4l_disable_media_source(vfd);
1454         return v4l_enable_media_source(vfd);
1455 }
1456
1457 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a)
1458 {
1459         if (a->index > 1)
1460                 return -EINVAL;
1461
1462         dprintk(1, "%s called\n", __func__);
1463
1464         if (a->index == 0)
1465                 strscpy(a->name, "Television", sizeof(a->name));
1466         else
1467                 strscpy(a->name, "Line in", sizeof(a->name));
1468
1469         a->capability = V4L2_AUDCAP_STEREO;
1470         return 0;
1471 }
1472
1473 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1474 {
1475         struct au0828_dev *dev = video_drvdata(file);
1476
1477         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1478                 dev->std_set_in_tuner_core, dev->dev_state);
1479
1480         a->index = dev->ctrl_ainput;
1481         if (a->index == 0)
1482                 strscpy(a->name, "Television", sizeof(a->name));
1483         else
1484                 strscpy(a->name, "Line in", sizeof(a->name));
1485
1486         a->capability = V4L2_AUDCAP_STEREO;
1487         return 0;
1488 }
1489
1490 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)
1491 {
1492         struct au0828_dev *dev = video_drvdata(file);
1493
1494         if (a->index != dev->ctrl_ainput)
1495                 return -EINVAL;
1496
1497         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1498                 dev->std_set_in_tuner_core, dev->dev_state);
1499         return 0;
1500 }
1501
1502 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1503 {
1504         struct au0828_dev *dev = video_drvdata(file);
1505         struct video_device *vfd = video_devdata(file);
1506         int ret;
1507
1508         if (t->index != 0)
1509                 return -EINVAL;
1510
1511         ret = v4l_enable_media_source(vfd);
1512         if (ret)
1513                 return ret;
1514
1515         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1516                 dev->std_set_in_tuner_core, dev->dev_state);
1517
1518         strscpy(t->name, "Auvitek tuner", sizeof(t->name));
1519
1520         au0828_init_tuner(dev);
1521         i2c_gate_ctrl(dev, 1);
1522         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1523         i2c_gate_ctrl(dev, 0);
1524         return 0;
1525 }
1526
1527 static int vidioc_s_tuner(struct file *file, void *priv,
1528                                 const struct v4l2_tuner *t)
1529 {
1530         struct au0828_dev *dev = video_drvdata(file);
1531
1532         if (t->index != 0)
1533                 return -EINVAL;
1534
1535         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1536                 dev->std_set_in_tuner_core, dev->dev_state);
1537
1538         au0828_init_tuner(dev);
1539         i2c_gate_ctrl(dev, 1);
1540         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1541         i2c_gate_ctrl(dev, 0);
1542
1543         dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
1544                 t->afc);
1545
1546         return 0;
1547
1548 }
1549
1550 static int vidioc_g_frequency(struct file *file, void *priv,
1551                                 struct v4l2_frequency *freq)
1552 {
1553         struct au0828_dev *dev = video_drvdata(file);
1554
1555         if (freq->tuner != 0)
1556                 return -EINVAL;
1557         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1558                 dev->std_set_in_tuner_core, dev->dev_state);
1559         freq->frequency = dev->ctrl_freq;
1560         return 0;
1561 }
1562
1563 static int vidioc_s_frequency(struct file *file, void *priv,
1564                                 const struct v4l2_frequency *freq)
1565 {
1566         struct au0828_dev *dev = video_drvdata(file);
1567         struct v4l2_frequency new_freq = *freq;
1568
1569         if (freq->tuner != 0)
1570                 return -EINVAL;
1571
1572         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1573                 dev->std_set_in_tuner_core, dev->dev_state);
1574
1575         au0828_init_tuner(dev);
1576         i2c_gate_ctrl(dev, 1);
1577
1578         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
1579         /* Get the actual set (and possibly clamped) frequency */
1580         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
1581         dev->ctrl_freq = new_freq.frequency;
1582
1583         i2c_gate_ctrl(dev, 0);
1584
1585         au0828_analog_stream_reset(dev);
1586
1587         return 0;
1588 }
1589
1590
1591 /* RAW VBI ioctls */
1592
1593 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1594                                 struct v4l2_format *format)
1595 {
1596         struct au0828_dev *dev = video_drvdata(file);
1597
1598         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1599                 dev->std_set_in_tuner_core, dev->dev_state);
1600
1601         format->fmt.vbi.samples_per_line = dev->vbi_width;
1602         format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1603         format->fmt.vbi.offset = 0;
1604         format->fmt.vbi.flags = 0;
1605         format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
1606
1607         format->fmt.vbi.count[0] = dev->vbi_height;
1608         format->fmt.vbi.count[1] = dev->vbi_height;
1609         format->fmt.vbi.start[0] = 21;
1610         format->fmt.vbi.start[1] = 284;
1611         memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
1612
1613         return 0;
1614 }
1615
1616 static int vidioc_g_pixelaspect(struct file *file, void *priv,
1617                                 int type, struct v4l2_fract *f)
1618 {
1619         struct au0828_dev *dev = video_drvdata(file);
1620
1621         if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1622                 return -EINVAL;
1623
1624         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1625                 dev->std_set_in_tuner_core, dev->dev_state);
1626
1627         f->numerator = 54;
1628         f->denominator = 59;
1629
1630         return 0;
1631 }
1632
1633 static int vidioc_g_selection(struct file *file, void *priv,
1634                               struct v4l2_selection *s)
1635 {
1636         struct au0828_dev *dev = video_drvdata(file);
1637
1638         if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1639                 return -EINVAL;
1640
1641         switch (s->target) {
1642         case V4L2_SEL_TGT_CROP_BOUNDS:
1643         case V4L2_SEL_TGT_CROP_DEFAULT:
1644                 s->r.left = 0;
1645                 s->r.top = 0;
1646                 s->r.width = dev->width;
1647                 s->r.height = dev->height;
1648                 break;
1649         default:
1650                 return -EINVAL;
1651         }
1652         return 0;
1653 }
1654
1655 #ifdef CONFIG_VIDEO_ADV_DEBUG
1656 static int vidioc_g_register(struct file *file, void *priv,
1657                              struct v4l2_dbg_register *reg)
1658 {
1659         struct au0828_dev *dev = video_drvdata(file);
1660
1661         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1662                 dev->std_set_in_tuner_core, dev->dev_state);
1663
1664         reg->val = au0828_read(dev, reg->reg);
1665         reg->size = 1;
1666         return 0;
1667 }
1668
1669 static int vidioc_s_register(struct file *file, void *priv,
1670                              const struct v4l2_dbg_register *reg)
1671 {
1672         struct au0828_dev *dev = video_drvdata(file);
1673
1674         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1675                 dev->std_set_in_tuner_core, dev->dev_state);
1676
1677         return au0828_writereg(dev, reg->reg, reg->val);
1678 }
1679 #endif
1680
1681 static int vidioc_log_status(struct file *file, void *fh)
1682 {
1683         struct video_device *vdev = video_devdata(file);
1684
1685         dprintk(1, "%s called\n", __func__);
1686
1687         v4l2_ctrl_log_status(file, fh);
1688         v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status);
1689         return 0;
1690 }
1691
1692 void au0828_v4l2_suspend(struct au0828_dev *dev)
1693 {
1694         struct urb *urb;
1695         int i;
1696
1697         pr_info("stopping V4L2\n");
1698
1699         if (dev->stream_state == STREAM_ON) {
1700                 pr_info("stopping V4L2 active URBs\n");
1701                 au0828_analog_stream_disable(dev);
1702                 /* stop urbs */
1703                 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1704                         urb = dev->isoc_ctl.urb[i];
1705                         if (urb) {
1706                                 if (!irqs_disabled())
1707                                         usb_kill_urb(urb);
1708                                 else
1709                                         usb_unlink_urb(urb);
1710                         }
1711                 }
1712         }
1713
1714         if (dev->vid_timeout_running)
1715                 del_timer_sync(&dev->vid_timeout);
1716         if (dev->vbi_timeout_running)
1717                 del_timer_sync(&dev->vbi_timeout);
1718 }
1719
1720 void au0828_v4l2_resume(struct au0828_dev *dev)
1721 {
1722         int i, rc;
1723
1724         pr_info("restarting V4L2\n");
1725
1726         if (dev->stream_state == STREAM_ON) {
1727                 au0828_stream_interrupt(dev);
1728                 au0828_init_tuner(dev);
1729         }
1730
1731         if (dev->vid_timeout_running)
1732                 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
1733         if (dev->vbi_timeout_running)
1734                 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1735
1736         /* If we were doing ac97 instead of i2s, it would go here...*/
1737         au0828_i2s_init(dev);
1738
1739         au0828_analog_stream_enable(dev);
1740
1741         if (!(dev->stream_state == STREAM_ON)) {
1742                 au0828_analog_stream_reset(dev);
1743                 /* submit urbs */
1744                 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1745                         rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
1746                         if (rc) {
1747                                 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
1748                                                i, rc);
1749                                 au0828_uninit_isoc(dev);
1750                         }
1751                 }
1752         }
1753 }
1754
1755 static const struct v4l2_file_operations au0828_v4l_fops = {
1756         .owner      = THIS_MODULE,
1757         .open       = au0828_v4l2_open,
1758         .release    = au0828_v4l2_close,
1759         .read       = vb2_fop_read,
1760         .poll       = vb2_fop_poll,
1761         .mmap       = vb2_fop_mmap,
1762         .unlocked_ioctl = video_ioctl2,
1763 };
1764
1765 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1766         .vidioc_querycap            = vidioc_querycap,
1767         .vidioc_enum_fmt_vid_cap    = vidioc_enum_fmt_vid_cap,
1768         .vidioc_g_fmt_vid_cap       = vidioc_g_fmt_vid_cap,
1769         .vidioc_try_fmt_vid_cap     = vidioc_try_fmt_vid_cap,
1770         .vidioc_s_fmt_vid_cap       = vidioc_s_fmt_vid_cap,
1771         .vidioc_g_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
1772         .vidioc_try_fmt_vbi_cap     = vidioc_g_fmt_vbi_cap,
1773         .vidioc_s_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
1774         .vidioc_enumaudio           = vidioc_enumaudio,
1775         .vidioc_g_audio             = vidioc_g_audio,
1776         .vidioc_s_audio             = vidioc_s_audio,
1777         .vidioc_g_pixelaspect       = vidioc_g_pixelaspect,
1778         .vidioc_g_selection         = vidioc_g_selection,
1779
1780         .vidioc_reqbufs             = vb2_ioctl_reqbufs,
1781         .vidioc_create_bufs         = vb2_ioctl_create_bufs,
1782         .vidioc_prepare_buf         = vb2_ioctl_prepare_buf,
1783         .vidioc_querybuf            = vb2_ioctl_querybuf,
1784         .vidioc_qbuf                = vb2_ioctl_qbuf,
1785         .vidioc_dqbuf               = vb2_ioctl_dqbuf,
1786         .vidioc_expbuf               = vb2_ioctl_expbuf,
1787
1788         .vidioc_s_std               = vidioc_s_std,
1789         .vidioc_g_std               = vidioc_g_std,
1790         .vidioc_enum_input          = vidioc_enum_input,
1791         .vidioc_g_input             = vidioc_g_input,
1792         .vidioc_s_input             = vidioc_s_input,
1793
1794         .vidioc_streamon            = vb2_ioctl_streamon,
1795         .vidioc_streamoff           = vb2_ioctl_streamoff,
1796
1797         .vidioc_g_tuner             = vidioc_g_tuner,
1798         .vidioc_s_tuner             = vidioc_s_tuner,
1799         .vidioc_g_frequency         = vidioc_g_frequency,
1800         .vidioc_s_frequency         = vidioc_s_frequency,
1801 #ifdef CONFIG_VIDEO_ADV_DEBUG
1802         .vidioc_g_register          = vidioc_g_register,
1803         .vidioc_s_register          = vidioc_s_register,
1804 #endif
1805         .vidioc_log_status          = vidioc_log_status,
1806         .vidioc_subscribe_event     = v4l2_ctrl_subscribe_event,
1807         .vidioc_unsubscribe_event   = v4l2_event_unsubscribe,
1808 };
1809
1810 static const struct video_device au0828_video_template = {
1811         .fops                       = &au0828_v4l_fops,
1812         .release                    = video_device_release_empty,
1813         .ioctl_ops                  = &video_ioctl_ops,
1814         .tvnorms                    = V4L2_STD_NTSC_M | V4L2_STD_PAL_M,
1815 };
1816
1817 static int au0828_vb2_setup(struct au0828_dev *dev)
1818 {
1819         int rc;
1820         struct vb2_queue *q;
1821
1822         /* Setup Videobuf2 for Video capture */
1823         q = &dev->vb_vidq;
1824         q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1825         q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1826         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1827         q->drv_priv = dev;
1828         q->buf_struct_size = sizeof(struct au0828_buffer);
1829         q->ops = &au0828_video_qops;
1830         q->mem_ops = &vb2_vmalloc_memops;
1831
1832         rc = vb2_queue_init(q);
1833         if (rc < 0)
1834                 return rc;
1835
1836         /* Setup Videobuf2 for VBI capture */
1837         q = &dev->vb_vbiq;
1838         q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1839         q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1840         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1841         q->drv_priv = dev;
1842         q->buf_struct_size = sizeof(struct au0828_buffer);
1843         q->ops = &au0828_vbi_qops;
1844         q->mem_ops = &vb2_vmalloc_memops;
1845
1846         rc = vb2_queue_init(q);
1847         if (rc < 0)
1848                 return rc;
1849
1850         return 0;
1851 }
1852
1853 static void au0828_analog_create_entities(struct au0828_dev *dev)
1854 {
1855 #if defined(CONFIG_MEDIA_CONTROLLER)
1856         static const char * const inames[] = {
1857                 [AU0828_VMUX_COMPOSITE] = "Composite",
1858                 [AU0828_VMUX_SVIDEO] = "S-Video",
1859                 [AU0828_VMUX_CABLE] = "Cable TV",
1860                 [AU0828_VMUX_TELEVISION] = "Television",
1861                 [AU0828_VMUX_DVB] = "DVB",
1862         };
1863         int ret, i;
1864
1865         /* Initialize Video and VBI pads */
1866         dev->video_pad.flags = MEDIA_PAD_FL_SINK;
1867         ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad);
1868         if (ret < 0)
1869                 pr_err("failed to initialize video media entity!\n");
1870
1871         dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
1872         ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad);
1873         if (ret < 0)
1874                 pr_err("failed to initialize vbi media entity!\n");
1875
1876         /* Create entities for each input connector */
1877         for (i = 0; i < AU0828_MAX_INPUT; i++) {
1878                 struct media_entity *ent = &dev->input_ent[i];
1879
1880                 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
1881                         break;
1882
1883                 ent->name = inames[AUVI_INPUT(i).type];
1884                 ent->flags = MEDIA_ENT_FL_CONNECTOR;
1885                 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
1886
1887                 switch (AUVI_INPUT(i).type) {
1888                 case AU0828_VMUX_COMPOSITE:
1889                         ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
1890                         break;
1891                 case AU0828_VMUX_SVIDEO:
1892                         ent->function = MEDIA_ENT_F_CONN_SVIDEO;
1893                         break;
1894                 case AU0828_VMUX_CABLE:
1895                 case AU0828_VMUX_TELEVISION:
1896                 case AU0828_VMUX_DVB:
1897                 default: /* Just to shut up a warning */
1898                         ent->function = MEDIA_ENT_F_CONN_RF;
1899                         break;
1900                 }
1901
1902                 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
1903                 if (ret < 0)
1904                         pr_err("failed to initialize input pad[%d]!\n", i);
1905
1906                 ret = media_device_register_entity(dev->media_dev, ent);
1907                 if (ret < 0)
1908                         pr_err("failed to register input entity %d!\n", i);
1909         }
1910 #endif
1911 }
1912
1913 /**************************************************************************/
1914
1915 int au0828_analog_register(struct au0828_dev *dev,
1916                            struct usb_interface *interface)
1917 {
1918         int retval = -ENOMEM;
1919         struct usb_host_interface *iface_desc;
1920         struct usb_endpoint_descriptor *endpoint;
1921         int i, ret;
1922
1923         dprintk(1, "au0828_analog_register called for intf#%d!\n",
1924                 interface->cur_altsetting->desc.bInterfaceNumber);
1925
1926         /* No analog TV */
1927         if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
1928                 return 0;
1929
1930         /* set au0828 usb interface0 to as5 */
1931         retval = usb_set_interface(dev->usbdev,
1932                         interface->cur_altsetting->desc.bInterfaceNumber, 5);
1933         if (retval != 0) {
1934                 pr_info("Failure setting usb interface0 to as5\n");
1935                 return retval;
1936         }
1937
1938         /* Figure out which endpoint has the isoc interface */
1939         iface_desc = interface->cur_altsetting;
1940         for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
1941                 endpoint = &iface_desc->endpoint[i].desc;
1942                 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1943                      == USB_DIR_IN) &&
1944                     ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1945                      == USB_ENDPOINT_XFER_ISOC)) {
1946
1947                         /* we find our isoc in endpoint */
1948                         u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
1949                         dev->max_pkt_size = (tmp & 0x07ff) *
1950                                 (((tmp & 0x1800) >> 11) + 1);
1951                         dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
1952                         dprintk(1,
1953                                 "Found isoc endpoint 0x%02x, max size = %d\n",
1954                                 dev->isoc_in_endpointaddr, dev->max_pkt_size);
1955                 }
1956         }
1957         if (!(dev->isoc_in_endpointaddr)) {
1958                 pr_info("Could not locate isoc endpoint\n");
1959                 return -ENODEV;
1960         }
1961
1962         init_waitqueue_head(&dev->open);
1963         spin_lock_init(&dev->slock);
1964
1965         /* init video dma queues */
1966         INIT_LIST_HEAD(&dev->vidq.active);
1967         INIT_LIST_HEAD(&dev->vbiq.active);
1968
1969         timer_setup(&dev->vid_timeout, au0828_vid_buffer_timeout, 0);
1970         timer_setup(&dev->vbi_timeout, au0828_vbi_buffer_timeout, 0);
1971
1972         dev->width = NTSC_STD_W;
1973         dev->height = NTSC_STD_H;
1974         dev->field_size = dev->width * dev->height;
1975         dev->frame_size = dev->field_size << 1;
1976         dev->bytesperline = dev->width << 1;
1977         dev->vbi_width = 720;
1978         dev->vbi_height = 1;
1979         dev->ctrl_ainput = 0;
1980         dev->ctrl_freq = 960;
1981         dev->std = V4L2_STD_NTSC_M;
1982         /* Default input is TV Tuner */
1983         au0828_s_input(dev, 0);
1984
1985         mutex_init(&dev->vb_queue_lock);
1986         mutex_init(&dev->vb_vbi_queue_lock);
1987
1988         /* Fill the video capture device struct */
1989         dev->vdev = au0828_video_template;
1990         dev->vdev.v4l2_dev = &dev->v4l2_dev;
1991         dev->vdev.lock = &dev->lock;
1992         dev->vdev.queue = &dev->vb_vidq;
1993         dev->vdev.queue->lock = &dev->vb_queue_lock;
1994         strscpy(dev->vdev.name, "au0828a video", sizeof(dev->vdev.name));
1995
1996         /* Setup the VBI device */
1997         dev->vbi_dev = au0828_video_template;
1998         dev->vbi_dev.v4l2_dev = &dev->v4l2_dev;
1999         dev->vbi_dev.lock = &dev->lock;
2000         dev->vbi_dev.queue = &dev->vb_vbiq;
2001         dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock;
2002         strscpy(dev->vbi_dev.name, "au0828a vbi", sizeof(dev->vbi_dev.name));
2003
2004         /* Init entities at the Media Controller */
2005         au0828_analog_create_entities(dev);
2006
2007         /* initialize videobuf2 stuff */
2008         retval = au0828_vb2_setup(dev);
2009         if (retval != 0) {
2010                 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n",
2011                         retval);
2012                 return -ENODEV;
2013         }
2014
2015         /* Register the v4l2 device */
2016         video_set_drvdata(&dev->vdev, dev);
2017         retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1);
2018         if (retval != 0) {
2019                 dprintk(1, "unable to register video device (error = %d).\n",
2020                         retval);
2021                 ret = -ENODEV;
2022                 goto err_reg_vdev;
2023         }
2024
2025         /* Register the vbi device */
2026         video_set_drvdata(&dev->vbi_dev, dev);
2027         retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1);
2028         if (retval != 0) {
2029                 dprintk(1, "unable to register vbi device (error = %d).\n",
2030                         retval);
2031                 ret = -ENODEV;
2032                 goto err_reg_vbi_dev;
2033         }
2034
2035 #ifdef CONFIG_MEDIA_CONTROLLER
2036         retval = v4l2_mc_create_media_graph(dev->media_dev);
2037         if (retval) {
2038                 pr_err("%s() au0282_dev_register failed to create graph\n",
2039                         __func__);
2040                 ret = -ENODEV;
2041                 goto err_reg_vbi_dev;
2042         }
2043 #endif
2044
2045         dprintk(1, "%s completed!\n", __func__);
2046
2047         return 0;
2048
2049 err_reg_vbi_dev:
2050         video_unregister_device(&dev->vdev);
2051 err_reg_vdev:
2052         vb2_queue_release(&dev->vb_vidq);
2053         vb2_queue_release(&dev->vb_vbiq);
2054         return ret;
2055 }
2056