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[media] au0828: convert to the control framework
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / usb / au0828 / au0828-video.c
CommitLineData
8b2f0795
DH		 1/*
2 * Auvitek AU0828 USB Bridge (Analog video support)
3 *
4 * Copyright (C) 2009 Devin Heitmueller <dheitmueller@linuxtv.org>
5 * Copyright (C) 2005-2008 Auvitek International, Ltd.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * As published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
20 * 02110-1301, USA.
21 */
22
23/* Developer Notes:
24 *
25 * VBI support is not yet working
26 * The hardware scaler supported is unimplemented
27 * AC97 audio support is unimplemented (only i2s audio mode)
28 *
29 */
30
31#include <linux/module.h>
5a0e3ad6 32#include <linux/slab.h>
8b2f0795
DH		 33#include <linux/init.h>
34#include <linux/device.h>
35#include <linux/suspend.h>
8b2f0795
DH		 36#include <media/v4l2-common.h>
37#include <media/v4l2-ioctl.h>
38#include <media/v4l2-chip-ident.h>
39#include <media/tuner.h>
40#include "au0828.h"
41#include "au0828-reg.h"
42
8b2f0795
DH		 43static DEFINE_MUTEX(au0828_sysfs_lock);
44
8b2f0795
DH		 45/* ------------------------------------------------------------------
46 Videobuf operations
47 ------------------------------------------------------------------*/
48
49static unsigned int isoc_debug;
50module_param(isoc_debug, int, 0644);
51MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
52
53#define au0828_isocdbg(fmt, arg...) \
54do {\
55 if (isoc_debug) { \
56 printk(KERN_INFO "au0828 %s :"fmt, \
57 __func__ , ##arg); \
58 } \
59 } while (0)
60
61static inline void print_err_status(struct au0828_dev *dev,
62 int packet, int status)
63{
64 char *errmsg = "Unknown";
65
66 switch (status) {
67 case -ENOENT:
68 errmsg = "unlinked synchronuously";
69 break;
70 case -ECONNRESET:
71 errmsg = "unlinked asynchronuously";
72 break;
73 case -ENOSR:
74 errmsg = "Buffer error (overrun)";
75 break;
76 case -EPIPE:
77 errmsg = "Stalled (device not responding)";
78 break;
79 case -EOVERFLOW:
80 errmsg = "Babble (bad cable?)";
81 break;
82 case -EPROTO:
83 errmsg = "Bit-stuff error (bad cable?)";
84 break;
85 case -EILSEQ:
86 errmsg = "CRC/Timeout (could be anything)";
87 break;
88 case -ETIME:
89 errmsg = "Device does not respond";
90 break;
91 }
92 if (packet < 0) {
93 au0828_isocdbg("URB status %d [%s].\n", status, errmsg);
94 } else {
95 au0828_isocdbg("URB packet %d, status %d [%s].\n",
96 packet, status, errmsg);
97 }
98}
99
100static int check_dev(struct au0828_dev *dev)
101{
102 if (dev->dev_state & DEV_DISCONNECTED) {
62899a28 103 printk(KERN_INFO "v4l2 ioctl: device not present\n");
8b2f0795
DH		 104 return -ENODEV;
105 }
106
107 if (dev->dev_state & DEV_MISCONFIGURED) {
62899a28 108 printk(KERN_INFO "v4l2 ioctl: device is misconfigured; "
8b2f0795
DH		 109 "close and open it again\n");
110 return -EIO;
111 }
112 return 0;
113}
114
115/*
116 * IRQ callback, called by URB callback
117 */
118static void au0828_irq_callback(struct urb *urb)
119{
120 struct au0828_dmaqueue *dma_q = urb->context;
121 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
78ca5005 122 unsigned long flags = 0;
e92ba283 123 int i;
8b2f0795
DH		 124
125 switch (urb->status) {
126 case 0: /* success */
127 case -ETIMEDOUT: /* NAK */
128 break;
129 case -ECONNRESET: /* kill */
130 case -ENOENT:
131 case -ESHUTDOWN:
132 au0828_isocdbg("au0828_irq_callback called: status kill\n");
133 return;
134 default: /* unknown error */
135 au0828_isocdbg("urb completition error %d.\n", urb->status);
136 break;
137 }
138
139 /* Copy data from URB */
78ca5005 140 spin_lock_irqsave(&dev->slock, flags);
e92ba283 141 dev->isoc_ctl.isoc_copy(dev, urb);
78ca5005 142 spin_unlock_irqrestore(&dev->slock, flags);
8b2f0795
DH		 143
144 /* Reset urb buffers */
145 for (i = 0; i < urb->number_of_packets; i++) {
146 urb->iso_frame_desc[i].status = 0;
147 urb->iso_frame_desc[i].actual_length = 0;
148 }
149 urb->status = 0;
150
151 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
152 if (urb->status) {
153 au0828_isocdbg("urb resubmit failed (error=%i)\n",
154 urb->status);
155 }
156}
157
158/*
159 * Stop and Deallocate URBs
160 */
a094ca46 161static void au0828_uninit_isoc(struct au0828_dev *dev)
8b2f0795
DH		 162{
163 struct urb *urb;
164 int i;
165
166 au0828_isocdbg("au0828: called au0828_uninit_isoc\n");
167
168 dev->isoc_ctl.nfields = -1;
169 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
170 urb = dev->isoc_ctl.urb[i];
171 if (urb) {
172 if (!irqs_disabled())
173 usb_kill_urb(urb);
174 else
175 usb_unlink_urb(urb);
176
177 if (dev->isoc_ctl.transfer_buffer[i]) {
997ea58e 178 usb_free_coherent(dev->usbdev,
8b2f0795
DH		 179 urb->transfer_buffer_length,
180 dev->isoc_ctl.transfer_buffer[i],
181 urb->transfer_dma);
182 }
183 usb_free_urb(urb);
184 dev->isoc_ctl.urb[i] = NULL;
185 }
186 dev->isoc_ctl.transfer_buffer[i] = NULL;
187 }
188
189 kfree(dev->isoc_ctl.urb);
190 kfree(dev->isoc_ctl.transfer_buffer);
191
192 dev->isoc_ctl.urb = NULL;
193 dev->isoc_ctl.transfer_buffer = NULL;
194 dev->isoc_ctl.num_bufs = 0;
195}
196
197/*
198 * Allocate URBs and start IRQ
199 */
a094ca46
MCC		 200static int au0828_init_isoc(struct au0828_dev *dev, int max_packets,
201 int num_bufs, int max_pkt_size,
202 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb))
8b2f0795
DH		 203{
204 struct au0828_dmaqueue *dma_q = &dev->vidq;
205 int i;
206 int sb_size, pipe;
207 struct urb *urb;
208 int j, k;
209 int rc;
210
211 au0828_isocdbg("au0828: called au0828_prepare_isoc\n");
212
213 /* De-allocates all pending stuff */
214 au0828_uninit_isoc(dev);
215
216 dev->isoc_ctl.isoc_copy = isoc_copy;
217 dev->isoc_ctl.num_bufs = num_bufs;
218
219 dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL);
220 if (!dev->isoc_ctl.urb) {
221 au0828_isocdbg("cannot alloc memory for usb buffers\n");
222 return -ENOMEM;
223 }
224
225 dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs,
226 GFP_KERNEL);
227 if (!dev->isoc_ctl.transfer_buffer) {
228 au0828_isocdbg("cannot allocate memory for usb transfer\n");
229 kfree(dev->isoc_ctl.urb);
230 return -ENOMEM;
231 }
232
233 dev->isoc_ctl.max_pkt_size = max_pkt_size;
234 dev->isoc_ctl.buf = NULL;
235
236 sb_size = max_packets * dev->isoc_ctl.max_pkt_size;
237
238 /* allocate urbs and transfer buffers */
239 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
240 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
241 if (!urb) {
242 au0828_isocdbg("cannot alloc isoc_ctl.urb %i\n", i);
243 au0828_uninit_isoc(dev);
244 return -ENOMEM;
245 }
246 dev->isoc_ctl.urb[i] = urb;
247
997ea58e 248 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev,
8b2f0795
DH		 249 sb_size, GFP_KERNEL, &urb->transfer_dma);
250 if (!dev->isoc_ctl.transfer_buffer[i]) {
251 printk("unable to allocate %i bytes for transfer"
252 " buffer %i%s\n",
253 sb_size, i,
254 in_interrupt() ? " while in int" : "");
255 au0828_uninit_isoc(dev);
256 return -ENOMEM;
257 }
258 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
259
260 pipe = usb_rcvisocpipe(dev->usbdev,
261 dev->isoc_in_endpointaddr),
262
263 usb_fill_int_urb(urb, dev->usbdev, pipe,
264 dev->isoc_ctl.transfer_buffer[i], sb_size,
265 au0828_irq_callback, dma_q, 1);
266
267 urb->number_of_packets = max_packets;
fadadb7d 268 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
8b2f0795
DH		 269
270 k = 0;
271 for (j = 0; j < max_packets; j++) {
272 urb->iso_frame_desc[j].offset = k;
273 urb->iso_frame_desc[j].length =
274 dev->isoc_ctl.max_pkt_size;
275 k += dev->isoc_ctl.max_pkt_size;
276 }
277 }
278
279 init_waitqueue_head(&dma_q->wq);
280
281 /* submit urbs and enables IRQ */
282 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
283 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
284 if (rc) {
285 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
286 i, rc);
287 au0828_uninit_isoc(dev);
288 return rc;
289 }
290 }
291
292 return 0;
293}
294
295/*
296 * Announces that a buffer were filled and request the next
297 */
298static inline void buffer_filled(struct au0828_dev *dev,
299 struct au0828_dmaqueue *dma_q,
300 struct au0828_buffer *buf)
301{
302 /* Advice that buffer was filled */
303 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
304
305 buf->vb.state = VIDEOBUF_DONE;
306 buf->vb.field_count++;
8e6057b5 307 v4l2_get_timestamp(&buf->vb.ts);
8b2f0795
DH		 308
309 dev->isoc_ctl.buf = NULL;
310
311 list_del(&buf->vb.queue);
312 wake_up(&buf->vb.done);
313}
314
7f8eacd2
DH		 315static inline void vbi_buffer_filled(struct au0828_dev *dev,
316 struct au0828_dmaqueue *dma_q,
317 struct au0828_buffer *buf)
318{
319 /* Advice that buffer was filled */
320 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
321
322 buf->vb.state = VIDEOBUF_DONE;
323 buf->vb.field_count++;
8e6057b5 324 v4l2_get_timestamp(&buf->vb.ts);
7f8eacd2
DH		 325
326 dev->isoc_ctl.vbi_buf = NULL;
327
328 list_del(&buf->vb.queue);
329 wake_up(&buf->vb.done);
330}
331
8b2f0795
DH		 332/*
333 * Identify the buffer header type and properly handles
334 */
335static void au0828_copy_video(struct au0828_dev *dev,
336 struct au0828_dmaqueue *dma_q,
337 struct au0828_buffer *buf,
338 unsigned char *p,
339 unsigned char *outp, unsigned long len)
340{
341 void *fieldstart, *startwrite, *startread;
342 int linesdone, currlinedone, offset, lencopy, remain;
343 int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */
344
7f8eacd2
DH		 345 if (len == 0)
346 return;
347
8b2f0795
DH		 348 if (dma_q->pos + len > buf->vb.size)
349 len = buf->vb.size - dma_q->pos;
350
351 startread = p;
352 remain = len;
353
354 /* Interlaces frame */
355 if (buf->top_field)
356 fieldstart = outp;
357 else
358 fieldstart = outp + bytesperline;
359
360 linesdone = dma_q->pos / bytesperline;
361 currlinedone = dma_q->pos % bytesperline;
362 offset = linesdone * bytesperline * 2 + currlinedone;
363 startwrite = fieldstart + offset;
364 lencopy = bytesperline - currlinedone;
365 lencopy = lencopy > remain ? remain : lencopy;
366
367 if ((char *)startwrite + lencopy > (char *)outp + buf->vb.size) {
368 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
369 ((char *)startwrite + lencopy) -
370 ((char *)outp + buf->vb.size));
371 remain = (char *)outp + buf->vb.size - (char *)startwrite;
372 lencopy = remain;
373 }
374 if (lencopy <= 0)
375 return;
376 memcpy(startwrite, startread, lencopy);
377
378 remain -= lencopy;
379
380 while (remain > 0) {
381 startwrite += lencopy + bytesperline;
382 startread += lencopy;
383 if (bytesperline > remain)
384 lencopy = remain;
385 else
386 lencopy = bytesperline;
387
388 if ((char *)startwrite + lencopy > (char *)outp +
389 buf->vb.size) {
62899a28 390 au0828_isocdbg("Overflow %zi bytes past buf end (2)\n",
8b2f0795
DH		 391 ((char *)startwrite + lencopy) -
392 ((char *)outp + buf->vb.size));
393 lencopy = remain = (char *)outp + buf->vb.size -
394 (char *)startwrite;
395 }
396 if (lencopy <= 0)
397 break;
398
399 memcpy(startwrite, startread, lencopy);
400
401 remain -= lencopy;
402 }
403
404 if (offset > 1440) {
405 /* We have enough data to check for greenscreen */
62899a28 406 if (outp[0] < 0x60 && outp[1440] < 0x60)
8b2f0795 407 dev->greenscreen_detected = 1;
8b2f0795
DH		 408 }
409
410 dma_q->pos += len;
411}
412
413/*
414 * video-buf generic routine to get the next available buffer
415 */
416static inline void get_next_buf(struct au0828_dmaqueue *dma_q,
417 struct au0828_buffer **buf)
418{
419 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
420
421 if (list_empty(&dma_q->active)) {
422 au0828_isocdbg("No active queue to serve\n");
423 dev->isoc_ctl.buf = NULL;
424 *buf = NULL;
425 return;
426 }
427
428 /* Get the next buffer */
429 *buf = list_entry(dma_q->active.next, struct au0828_buffer, vb.queue);
430 dev->isoc_ctl.buf = *buf;
431
432 return;
433}
434
7f8eacd2
DH		 435static void au0828_copy_vbi(struct au0828_dev *dev,
436 struct au0828_dmaqueue *dma_q,
437 struct au0828_buffer *buf,
438 unsigned char *p,
439 unsigned char *outp, unsigned long len)
440{
441 unsigned char *startwrite, *startread;
b5f5933a 442 int bytesperline;
7f8eacd2
DH		 443 int i, j = 0;
444
445 if (dev == NULL) {
446 au0828_isocdbg("dev is null\n");
447 return;
448 }
449
450 if (dma_q == NULL) {
451 au0828_isocdbg("dma_q is null\n");
452 return;
453 }
454 if (buf == NULL)
455 return;
456 if (p == NULL) {
457 au0828_isocdbg("p is null\n");
458 return;
459 }
460 if (outp == NULL) {
461 au0828_isocdbg("outp is null\n");
462 return;
463 }
464
b5f5933a
DC		 465 bytesperline = dev->vbi_width;
466
7f8eacd2
DH		 467 if (dma_q->pos + len > buf->vb.size)
468 len = buf->vb.size - dma_q->pos;
469
470 startread = p;
471 startwrite = outp + (dma_q->pos / 2);
472
473 /* Make sure the bottom field populates the second half of the frame */
474 if (buf->top_field == 0)
475 startwrite += bytesperline * dev->vbi_height;
476
477 for (i = 0; i < len; i += 2)
478 startwrite[j++] = startread[i+1];
479
480 dma_q->pos += len;
481}
482
483
484/*
485 * video-buf generic routine to get the next available VBI buffer
486 */
487static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q,
488 struct au0828_buffer **buf)
489{
490 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq);
491 char *outp;
492
493 if (list_empty(&dma_q->active)) {
494 au0828_isocdbg("No active queue to serve\n");
495 dev->isoc_ctl.vbi_buf = NULL;
496 *buf = NULL;
497 return;
498 }
499
500 /* Get the next buffer */
501 *buf = list_entry(dma_q->active.next, struct au0828_buffer, vb.queue);
25985edc 502 /* Cleans up buffer - Useful for testing for frame/URB loss */
7f8eacd2
DH		 503 outp = videobuf_to_vmalloc(&(*buf)->vb);
504 memset(outp, 0x00, (*buf)->vb.size);
505
506 dev->isoc_ctl.vbi_buf = *buf;
507
508 return;
509}
510
8b2f0795
DH		 511/*
512 * Controls the isoc copy of each urb packet
513 */
514static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
515{
516 struct au0828_buffer *buf;
7f8eacd2 517 struct au0828_buffer *vbi_buf;
8b2f0795 518 struct au0828_dmaqueue *dma_q = urb->context;
7f8eacd2 519 struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq;
8b2f0795 520 unsigned char *outp = NULL;
7f8eacd2 521 unsigned char *vbioutp = NULL;
8b2f0795
DH		 522 int i, len = 0, rc = 1;
523 unsigned char *p;
524 unsigned char fbyte;
7f8eacd2
DH		 525 unsigned int vbi_field_size;
526 unsigned int remain, lencopy;
8b2f0795
DH		 527
528 if (!dev)
529 return 0;
530
531 if ((dev->dev_state & DEV_DISCONNECTED) ||
532 (dev->dev_state & DEV_MISCONFIGURED))
533 return 0;
534
535 if (urb->status < 0) {
536 print_err_status(dev, -1, urb->status);
537 if (urb->status == -ENOENT)
538 return 0;
539 }
540
541 buf = dev->isoc_ctl.buf;
542 if (buf != NULL)
543 outp = videobuf_to_vmalloc(&buf->vb);
544
7f8eacd2
DH		 545 vbi_buf = dev->isoc_ctl.vbi_buf;
546 if (vbi_buf != NULL)
547 vbioutp = videobuf_to_vmalloc(&vbi_buf->vb);
548
8b2f0795
DH		 549 for (i = 0; i < urb->number_of_packets; i++) {
550 int status = urb->iso_frame_desc[i].status;
551
552 if (status < 0) {
553 print_err_status(dev, i, status);
554 if (urb->iso_frame_desc[i].status != -EPROTO)
555 continue;
556 }
557
62899a28 558 if (urb->iso_frame_desc[i].actual_length <= 0)
8b2f0795 559 continue;
62899a28 560
8b2f0795
DH		 561 if (urb->iso_frame_desc[i].actual_length >
562 dev->max_pkt_size) {
563 au0828_isocdbg("packet bigger than packet size");
564 continue;
565 }
566
567 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
568 fbyte = p[0];
569 len = urb->iso_frame_desc[i].actual_length - 4;
570 p += 4;
571
572 if (fbyte & 0x80) {
573 len -= 4;
574 p += 4;
575 au0828_isocdbg("Video frame %s\n",
576 (fbyte & 0x40) ? "odd" : "even");
bde3bb9a 577 if (fbyte & 0x40) {
7f8eacd2
DH		 578 /* VBI */
579 if (vbi_buf != NULL)
580 vbi_buffer_filled(dev,
581 vbi_dma_q,
582 vbi_buf);
583 vbi_get_next_buf(vbi_dma_q, &vbi_buf);
584 if (vbi_buf == NULL)
585 vbioutp = NULL;
586 else
587 vbioutp = videobuf_to_vmalloc(
588 &vbi_buf->vb);
589
590 /* Video */
8b2f0795
DH		 591 if (buf != NULL)
592 buffer_filled(dev, dma_q, buf);
593 get_next_buf(dma_q, &buf);
62899a28 594 if (buf == NULL)
8b2f0795 595 outp = NULL;
62899a28 596 else
8b2f0795 597 outp = videobuf_to_vmalloc(&buf->vb);
78ca5005
DH		 598
599 /* As long as isoc traffic is arriving, keep
600 resetting the timer */
601 if (dev->vid_timeout_running)
602 mod_timer(&dev->vid_timeout,
603 jiffies + (HZ / 10));
604 if (dev->vbi_timeout_running)
605 mod_timer(&dev->vbi_timeout,
606 jiffies + (HZ / 10));
8b2f0795
DH		 607 }
608
609 if (buf != NULL) {
62899a28 610 if (fbyte & 0x40)
8b2f0795 611 buf->top_field = 1;
62899a28 612 else
8b2f0795 613 buf->top_field = 0;
8b2f0795
DH		 614 }
615
7f8eacd2
DH		 616 if (vbi_buf != NULL) {
617 if (fbyte & 0x40)
618 vbi_buf->top_field = 1;
619 else
620 vbi_buf->top_field = 0;
621 }
622
623 dev->vbi_read = 0;
624 vbi_dma_q->pos = 0;
8b2f0795
DH		 625 dma_q->pos = 0;
626 }
7f8eacd2
DH		 627
628 vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
629 if (dev->vbi_read < vbi_field_size) {
630 remain = vbi_field_size - dev->vbi_read;
631 if (len < remain)
632 lencopy = len;
633 else
634 lencopy = remain;
635
636 if (vbi_buf != NULL)
637 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
638 vbioutp, len);
639
640 len -= lencopy;
641 p += lencopy;
642 dev->vbi_read += lencopy;
643 }
644
645 if (dev->vbi_read >= vbi_field_size && buf != NULL)
8b2f0795 646 au0828_copy_video(dev, dma_q, buf, p, outp, len);
8b2f0795
DH		 647 }
648 return rc;
649}
650
651static int
652buffer_setup(struct videobuf_queue *vq, unsigned int *count,
653 unsigned int *size)
654{
655 struct au0828_fh *fh = vq->priv_data;
656 *size = (fh->dev->width * fh->dev->height * 16 + 7) >> 3;
657
658 if (0 == *count)
659 *count = AU0828_DEF_BUF;
660
661 if (*count < AU0828_MIN_BUF)
662 *count = AU0828_MIN_BUF;
663 return 0;
664}
665
666/* This is called *without* dev->slock held; please keep it that way */
667static void free_buffer(struct videobuf_queue *vq, struct au0828_buffer *buf)
668{
669 struct au0828_fh *fh = vq->priv_data;
670 struct au0828_dev *dev = fh->dev;
671 unsigned long flags = 0;
672 if (in_interrupt())
673 BUG();
674
675 /* We used to wait for the buffer to finish here, but this didn't work
676 because, as we were keeping the state as VIDEOBUF_QUEUED,
677 videobuf_queue_cancel marked it as finished for us.
678 (Also, it could wedge forever if the hardware was misconfigured.)
679
680 This should be safe; by the time we get here, the buffer isn't
681 queued anymore. If we ever start marking the buffers as
682 VIDEOBUF_ACTIVE, it won't be, though.
683 */
684 spin_lock_irqsave(&dev->slock, flags);
685 if (dev->isoc_ctl.buf == buf)
686 dev->isoc_ctl.buf = NULL;
687 spin_unlock_irqrestore(&dev->slock, flags);
688
689 videobuf_vmalloc_free(&buf->vb);
690 buf->vb.state = VIDEOBUF_NEEDS_INIT;
691}
692
693static int
694buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
695 enum v4l2_field field)
696{
697 struct au0828_fh *fh = vq->priv_data;
698 struct au0828_buffer *buf = container_of(vb, struct au0828_buffer, vb);
699 struct au0828_dev *dev = fh->dev;
700 int rc = 0, urb_init = 0;
701
702 buf->vb.size = (fh->dev->width * fh->dev->height * 16 + 7) >> 3;
703
704 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
705 return -EINVAL;
706
707 buf->vb.width = dev->width;
708 buf->vb.height = dev->height;
709 buf->vb.field = field;
710
711 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
712 rc = videobuf_iolock(vq, &buf->vb, NULL);
713 if (rc < 0) {
62899a28 714 printk(KERN_INFO "videobuf_iolock failed\n");
8b2f0795
DH		 715 goto fail;
716 }
717 }
718
719 if (!dev->isoc_ctl.num_bufs)
720 urb_init = 1;
721
722 if (urb_init) {
723 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
724 AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
725 au0828_isoc_copy);
726 if (rc < 0) {
62899a28 727 printk(KERN_INFO "au0828_init_isoc failed\n");
8b2f0795
DH		 728 goto fail;
729 }
730 }
731
732 buf->vb.state = VIDEOBUF_PREPARED;
733 return 0;
734
735fail:
736 free_buffer(vq, buf);
737 return rc;
738}
739
740static void
741buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
742{
743 struct au0828_buffer *buf = container_of(vb,
744 struct au0828_buffer,
745 vb);
746 struct au0828_fh *fh = vq->priv_data;
747 struct au0828_dev *dev = fh->dev;
748 struct au0828_dmaqueue *vidq = &dev->vidq;
749
750 buf->vb.state = VIDEOBUF_QUEUED;
751 list_add_tail(&buf->vb.queue, &vidq->active);
752}
753
754static void buffer_release(struct videobuf_queue *vq,
755 struct videobuf_buffer *vb)
756{
757 struct au0828_buffer *buf = container_of(vb,
758 struct au0828_buffer,
759 vb);
760
761 free_buffer(vq, buf);
762}
763
764static struct videobuf_queue_ops au0828_video_qops = {
765 .buf_setup = buffer_setup,
766 .buf_prepare = buffer_prepare,
767 .buf_queue = buffer_queue,
768 .buf_release = buffer_release,
769};
770
771/* ------------------------------------------------------------------
772 V4L2 interface
773 ------------------------------------------------------------------*/
774
775static int au0828_i2s_init(struct au0828_dev *dev)
776{
777 /* Enable i2s mode */
778 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
779 return 0;
780}
781
782/*
783 * Auvitek au0828 analog stream enable
784 * Please set interface0 to AS5 before enable the stream
785 */
a094ca46 786static int au0828_analog_stream_enable(struct au0828_dev *d)
8b2f0795
DH		 787{
788 dprintk(1, "au0828_analog_stream_enable called\n");
789 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
790 au0828_writereg(d, 0x106, 0x00);
791 /* set x position */
792 au0828_writereg(d, 0x110, 0x00);
793 au0828_writereg(d, 0x111, 0x00);
794 au0828_writereg(d, 0x114, 0xa0);
795 au0828_writereg(d, 0x115, 0x05);
796 /* set y position */
7f8eacd2 797 au0828_writereg(d, 0x112, 0x00);
8b2f0795
DH		 798 au0828_writereg(d, 0x113, 0x00);
799 au0828_writereg(d, 0x116, 0xf2);
800 au0828_writereg(d, 0x117, 0x00);
801 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
802
803 return 0;
804}
805
806int au0828_analog_stream_disable(struct au0828_dev *d)
807{
808 dprintk(1, "au0828_analog_stream_disable called\n");
809 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
810 return 0;
811}
812
a094ca46 813static void au0828_analog_stream_reset(struct au0828_dev *dev)
8b2f0795
DH		 814{
815 dprintk(1, "au0828_analog_stream_reset called\n");
816 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
817 mdelay(30);
818 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
819}
820
821/*
822 * Some operations needs to stop current streaming
823 */
824static int au0828_stream_interrupt(struct au0828_dev *dev)
825{
826 int ret = 0;
827
828 dev->stream_state = STREAM_INTERRUPT;
62899a28 829 if (dev->dev_state == DEV_DISCONNECTED)
8b2f0795 830 return -ENODEV;
62899a28 831 else if (ret) {
8b2f0795 832 dev->dev_state = DEV_MISCONFIGURED;
62899a28 833 dprintk(1, "%s device is misconfigured!\n", __func__);
8b2f0795
DH		 834 return ret;
835 }
836 return 0;
837}
838
839/*
840 * au0828_release_resources
841 * unregister v4l2 devices
842 */
843void au0828_analog_unregister(struct au0828_dev *dev)
844{
845 dprintk(1, "au0828_release_resources called\n");
846 mutex_lock(&au0828_sysfs_lock);
847
63b0d5ad 848 if (dev->vdev)
5a5a4e16
DH		 849 video_unregister_device(dev->vdev);
850 if (dev->vbi_dev)
851 video_unregister_device(dev->vbi_dev);
8b2f0795
DH		 852
853 mutex_unlock(&au0828_sysfs_lock);
854}
855
856
857/* Usage lock check functions */
7f8eacd2 858static int res_get(struct au0828_fh *fh, unsigned int bit)
8b2f0795 859{
7f8eacd2 860 struct au0828_dev *dev = fh->dev;
8b2f0795 861
7f8eacd2
DH		 862 if (fh->resources & bit)
863 /* have it already allocated */
864 return 1;
8b2f0795 865
7f8eacd2 866 /* is it free? */
7f8eacd2
DH		 867 if (dev->resources & bit) {
868 /* no, someone else uses it */
7f8eacd2
DH		 869 return 0;
870 }
871 /* it's free, grab it */
872 fh->resources |= bit;
873 dev->resources |= bit;
874 dprintk(1, "res: get %d\n", bit);
549ee4df 875
7f8eacd2
DH		 876 return 1;
877}
8b2f0795 878
7f8eacd2
DH		 879static int res_check(struct au0828_fh *fh, unsigned int bit)
880{
881 return fh->resources & bit;
8b2f0795
DH		 882}
883
7f8eacd2 884static int res_locked(struct au0828_dev *dev, unsigned int bit)
8b2f0795 885{
7f8eacd2 886 return dev->resources & bit;
8b2f0795
DH		 887}
888
7f8eacd2 889static void res_free(struct au0828_fh *fh, unsigned int bits)
8b2f0795 890{
7f8eacd2
DH		 891 struct au0828_dev *dev = fh->dev;
892
893 BUG_ON((fh->resources & bits) != bits);
8b2f0795 894
7f8eacd2
DH		 895 fh->resources &= ~bits;
896 dev->resources &= ~bits;
897 dprintk(1, "res: put %d\n", bits);
7f8eacd2
DH		 898}
899
900static int get_ressource(struct au0828_fh *fh)
901{
902 switch (fh->type) {
903 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
904 return AU0828_RESOURCE_VIDEO;
905 case V4L2_BUF_TYPE_VBI_CAPTURE:
906 return AU0828_RESOURCE_VBI;
907 default:
908 BUG();
909 return 0;
910 }
8b2f0795
DH		 911}
912
6e04b7b9
DH		 913/* This function ensures that video frames continue to be delivered even if
914 the ITU-656 input isn't receiving any data (thereby preventing applications
915 such as tvtime from hanging) */
a094ca46 916static void au0828_vid_buffer_timeout(unsigned long data)
6e04b7b9
DH		 917{
918 struct au0828_dev *dev = (struct au0828_dev *) data;
919 struct au0828_dmaqueue *dma_q = &dev->vidq;
920 struct au0828_buffer *buf;
921 unsigned char *vid_data;
78ca5005 922 unsigned long flags = 0;
6e04b7b9 923
78ca5005 924 spin_lock_irqsave(&dev->slock, flags);
6e04b7b9
DH		 925
926 buf = dev->isoc_ctl.buf;
927 if (buf != NULL) {
928 vid_data = videobuf_to_vmalloc(&buf->vb);
929 memset(vid_data, 0x00, buf->vb.size); /* Blank green frame */
930 buffer_filled(dev, dma_q, buf);
6e04b7b9 931 }
78ca5005
DH		 932 get_next_buf(dma_q, &buf);
933
934 if (dev->vid_timeout_running == 1)
935 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
6e04b7b9 936
78ca5005 937 spin_unlock_irqrestore(&dev->slock, flags);
6e04b7b9
DH		 938}
939
a094ca46 940static void au0828_vbi_buffer_timeout(unsigned long data)
6e04b7b9
DH		 941{
942 struct au0828_dev *dev = (struct au0828_dev *) data;
943 struct au0828_dmaqueue *dma_q = &dev->vbiq;
944 struct au0828_buffer *buf;
945 unsigned char *vbi_data;
78ca5005 946 unsigned long flags = 0;
6e04b7b9 947
78ca5005 948 spin_lock_irqsave(&dev->slock, flags);
6e04b7b9
DH		 949
950 buf = dev->isoc_ctl.vbi_buf;
951 if (buf != NULL) {
952 vbi_data = videobuf_to_vmalloc(&buf->vb);
953 memset(vbi_data, 0x00, buf->vb.size);
954 vbi_buffer_filled(dev, dma_q, buf);
6e04b7b9 955 }
78ca5005 956 vbi_get_next_buf(dma_q, &buf);
6e04b7b9 957
78ca5005
DH		 958 if (dev->vbi_timeout_running == 1)
959 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
960 spin_unlock_irqrestore(&dev->slock, flags);
6e04b7b9
DH		 961}
962
963
8b2f0795
DH		 964static int au0828_v4l2_open(struct file *filp)
965{
8b2f0795 966 int ret = 0;
7f8eacd2 967 struct video_device *vdev = video_devdata(filp);
63b0d5ad 968 struct au0828_dev *dev = video_drvdata(filp);
8b2f0795 969 struct au0828_fh *fh;
7f8eacd2 970 int type;
63b0d5ad 971
7f8eacd2
DH		 972 switch (vdev->vfl_type) {
973 case VFL_TYPE_GRABBER:
974 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
975 break;
976 case VFL_TYPE_VBI:
63b0d5ad 977 type = V4L2_BUF_TYPE_VBI_CAPTURE;
7f8eacd2
DH		 978 break;
979 default:
980 return -EINVAL;
981 }
8b2f0795
DH		 982
983 fh = kzalloc(sizeof(struct au0828_fh), GFP_KERNEL);
62899a28 984 if (NULL == fh) {
8b2f0795
DH		 985 dprintk(1, "Failed allocate au0828_fh struct!\n");
986 return -ENOMEM;
987 }
988
989 fh->type = type;
990 fh->dev = dev;
991 filp->private_data = fh;
992
62899a28 993 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
8b2f0795
DH		 994 /* set au0828 interface0 to AS5 here again */
995 ret = usb_set_interface(dev->usbdev, 0, 5);
62899a28
DH		 996 if (ret < 0) {
997 printk(KERN_INFO "Au0828 can't set alternate to 5!\n");
8b2f0795
DH		 998 return -EBUSY;
999 }
1000 dev->width = NTSC_STD_W;
1001 dev->height = NTSC_STD_H;
1002 dev->frame_size = dev->width * dev->height * 2;
1003 dev->field_size = dev->width * dev->height;
1004 dev->bytesperline = dev->width * 2;
1005
1006 au0828_analog_stream_enable(dev);
1007 au0828_analog_stream_reset(dev);
1008
1009 /* If we were doing ac97 instead of i2s, it would go here...*/
1010 au0828_i2s_init(dev);
1011
1012 dev->stream_state = STREAM_OFF;
1013 dev->dev_state |= DEV_INITIALIZED;
1014 }
1015
1016 dev->users++;
1017
1018 videobuf_queue_vmalloc_init(&fh->vb_vidq, &au0828_video_qops,
7f8eacd2
DH		 1019 NULL, &dev->slock,
1020 V4L2_BUF_TYPE_VIDEO_CAPTURE,
8b2f0795 1021 V4L2_FIELD_INTERLACED,
549ee4df
DH		 1022 sizeof(struct au0828_buffer), fh,
1023 &dev->lock);
8b2f0795 1024
7f8eacd2
DH		 1025 /* VBI Setup */
1026 dev->vbi_width = 720;
1027 dev->vbi_height = 1;
1028 videobuf_queue_vmalloc_init(&fh->vb_vbiq, &au0828_vbi_qops,
1029 NULL, &dev->slock,
1030 V4L2_BUF_TYPE_VBI_CAPTURE,
1031 V4L2_FIELD_SEQ_TB,
549ee4df
DH		 1032 sizeof(struct au0828_buffer), fh,
1033 &dev->lock);
8b2f0795
DH		 1034 return ret;
1035}
1036
1037static int au0828_v4l2_close(struct file *filp)
1038{
1039 int ret;
1040 struct au0828_fh *fh = filp->private_data;
1041 struct au0828_dev *dev = fh->dev;
1042
7f8eacd2 1043 if (res_check(fh, AU0828_RESOURCE_VIDEO)) {
78ca5005
DH		 1044 /* Cancel timeout thread in case they didn't call streamoff */
1045 dev->vid_timeout_running = 0;
1046 del_timer_sync(&dev->vid_timeout);
1047
8b2f0795 1048 videobuf_stop(&fh->vb_vidq);
7f8eacd2
DH		 1049 res_free(fh, AU0828_RESOURCE_VIDEO);
1050 }
8b2f0795 1051
7f8eacd2 1052 if (res_check(fh, AU0828_RESOURCE_VBI)) {
78ca5005
DH		 1053 /* Cancel timeout thread in case they didn't call streamoff */
1054 dev->vbi_timeout_running = 0;
1055 del_timer_sync(&dev->vbi_timeout);
1056
7f8eacd2
DH		 1057 videobuf_stop(&fh->vb_vbiq);
1058 res_free(fh, AU0828_RESOURCE_VBI);
1059 }
1060
1061 if (dev->users == 1) {
62899a28 1062 if (dev->dev_state & DEV_DISCONNECTED) {
8b2f0795 1063 au0828_analog_unregister(dev);
8b2f0795
DH		 1064 kfree(dev);
1065 return 0;
1066 }
1067
1068 au0828_analog_stream_disable(dev);
1069
1070 au0828_uninit_isoc(dev);
1071
e4b8bc52 1072 /* Save some power by putting tuner to sleep */
622b828a 1073 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0);
e4b8bc52 1074
8b2f0795
DH		 1075 /* When close the device, set the usb intf0 into alt0 to free
1076 USB bandwidth */
1077 ret = usb_set_interface(dev->usbdev, 0, 0);
62899a28
DH		 1078 if (ret < 0)
1079 printk(KERN_INFO "Au0828 can't set alternate to 0!\n");
8b2f0795
DH		 1080 }
1081
7f8eacd2
DH		 1082 videobuf_mmap_free(&fh->vb_vidq);
1083 videobuf_mmap_free(&fh->vb_vbiq);
8b2f0795
DH		 1084 kfree(fh);
1085 dev->users--;
1086 wake_up_interruptible_nr(&dev->open, 1);
8b2f0795
DH		 1087 return 0;
1088}
1089
1090static ssize_t au0828_v4l2_read(struct file *filp, char __user *buf,
1091 size_t count, loff_t *pos)
1092{
1093 struct au0828_fh *fh = filp->private_data;
1094 struct au0828_dev *dev = fh->dev;
1095 int rc;
1096
1097 rc = check_dev(dev);
1098 if (rc < 0)
1099 return rc;
1100
62899a28 1101 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
7f8eacd2
DH		 1102 if (res_locked(dev, AU0828_RESOURCE_VIDEO))
1103 return -EBUSY;
8b2f0795
DH		 1104
1105 return videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0,
1106 filp->f_flags & O_NONBLOCK);
1107 }
7f8eacd2
DH		 1108
1109 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
1110 if (!res_get(fh, AU0828_RESOURCE_VBI))
1111 return -EBUSY;
1112
bf797165
DH		 1113 if (dev->vbi_timeout_running == 0) {
1114 /* Handle case where caller tries to read without
1115 calling streamon first */
1116 dev->vbi_timeout_running = 1;
1117 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1118 }
1119
7f8eacd2
DH		 1120 return videobuf_read_stream(&fh->vb_vbiq, buf, count, pos, 0,
1121 filp->f_flags & O_NONBLOCK);
1122 }
1123
8b2f0795
DH		 1124 return 0;
1125}
1126
1127static unsigned int au0828_v4l2_poll(struct file *filp, poll_table *wait)
1128{
1129 struct au0828_fh *fh = filp->private_data;
1130 struct au0828_dev *dev = fh->dev;
1131 int rc;
1132
1133 rc = check_dev(dev);
1134 if (rc < 0)
1135 return rc;
1136
7f8eacd2
DH		 1137 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1138 if (!res_get(fh, AU0828_RESOURCE_VIDEO))
1139 return POLLERR;
1140 return videobuf_poll_stream(filp, &fh->vb_vidq, wait);
1141 } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
1142 if (!res_get(fh, AU0828_RESOURCE_VBI))
1143 return POLLERR;
1144 return videobuf_poll_stream(filp, &fh->vb_vbiq, wait);
1145 } else {
8b2f0795 1146 return POLLERR;
7f8eacd2 1147 }
8b2f0795
DH		 1148}
1149
1150static int au0828_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
1151{
1152 struct au0828_fh *fh = filp->private_data;
1153 struct au0828_dev *dev = fh->dev;
1154 int rc;
1155
1156 rc = check_dev(dev);
1157 if (rc < 0)
1158 return rc;
1159
7f8eacd2
DH		 1160 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1161 rc = videobuf_mmap_mapper(&fh->vb_vidq, vma);
1162 else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
1163 rc = videobuf_mmap_mapper(&fh->vb_vbiq, vma);
8b2f0795 1164
8b2f0795
DH		 1165 return rc;
1166}
1167
1168static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
1169 struct v4l2_format *format)
1170{
1171 int ret;
1172 int width = format->fmt.pix.width;
1173 int height = format->fmt.pix.height;
8b2f0795 1174
62899a28 1175 if (format->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
8b2f0795 1176 return -EINVAL;
8b2f0795
DH		 1177
1178 /* If they are demanding a format other than the one we support,
1179 bail out (tvtime asks for UYVY and then retries with YUYV) */
62899a28 1180 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)
8b2f0795 1181 return -EINVAL;
8b2f0795
DH		 1182
1183 /* format->fmt.pix.width only support 720 and height 480 */
62899a28 1184 if (width != 720)
8b2f0795 1185 width = 720;
62899a28 1186 if (height != 480)
8b2f0795
DH		 1187 height = 480;
1188
1189 format->fmt.pix.width = width;
1190 format->fmt.pix.height = height;
1191 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1192 format->fmt.pix.bytesperline = width * 2;
1193 format->fmt.pix.sizeimage = width * height * 2;
1194 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1195 format->fmt.pix.field = V4L2_FIELD_INTERLACED;
1196
62899a28 1197 if (cmd == VIDIOC_TRY_FMT)
8b2f0795
DH		 1198 return 0;
1199
1200 /* maybe set new image format, driver current only support 720*480 */
1201 dev->width = width;
1202 dev->height = height;
1203 dev->frame_size = width * height * 2;
1204 dev->field_size = width * height;
1205 dev->bytesperline = width * 2;
1206
62899a28 1207 if (dev->stream_state == STREAM_ON) {
8b2f0795 1208 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
62899a28
DH		 1209 ret = au0828_stream_interrupt(dev);
1210 if (ret != 0) {
8b2f0795
DH		 1211 dprintk(1, "error interrupting video stream!\n");
1212 return ret;
1213 }
1214 }
1215
1216 /* set au0828 interface0 to AS5 here again */
1217 ret = usb_set_interface(dev->usbdev, 0, 5);
62899a28
DH		 1218 if (ret < 0) {
1219 printk(KERN_INFO "Au0828 can't set alt setting to 5!\n");
8b2f0795
DH		 1220 return -EBUSY;
1221 }
1222
1223 au0828_analog_stream_enable(dev);
1224
1225 return 0;
1226}
1227
1228
8b2f0795
DH		 1229static int vidioc_querycap(struct file *file, void *priv,
1230 struct v4l2_capability *cap)
1231{
59e05484
HV		 1232 struct video_device *vdev = video_devdata(file);
1233 struct au0828_fh *fh = priv;
8b2f0795
DH		 1234 struct au0828_dev *dev = fh->dev;
1235
8b2f0795 1236 strlcpy(cap->driver, "au0828", sizeof(cap->driver));
f1add5b5 1237 strlcpy(cap->card, dev->board.name, sizeof(cap->card));
59e05484 1238 usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info));
8b2f0795 1239
59e05484
HV		 1240 /* set the device capabilities */
1241 cap->device_caps = V4L2_CAP_AUDIO |
8b2f0795
DH		 1242 V4L2_CAP_READWRITE |
1243 V4L2_CAP_STREAMING |
1244 V4L2_CAP_TUNER;
59e05484
HV		 1245 if (vdev->vfl_type == VFL_TYPE_GRABBER)
1246 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
1247 else
1248 cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
1249 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS |
1250 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE;
8b2f0795
DH		 1251 return 0;
1252}
1253
1254static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1255 struct v4l2_fmtdesc *f)
1256{
62899a28 1257 if (f->index)
8b2f0795
DH		 1258 return -EINVAL;
1259
8b2f0795
DH		 1260 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1261 strcpy(f->description, "Packed YUV2");
1262
1263 f->flags = 0;
1264 f->pixelformat = V4L2_PIX_FMT_UYVY;
1265
8b2f0795
DH		 1266 return 0;
1267}
1268
1269static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1270 struct v4l2_format *f)
1271{
1272 struct au0828_fh *fh = priv;
1273 struct au0828_dev *dev = fh->dev;
1274
1275 f->fmt.pix.width = dev->width;
1276 f->fmt.pix.height = dev->height;
1277 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1278 f->fmt.pix.bytesperline = dev->bytesperline;
1279 f->fmt.pix.sizeimage = dev->frame_size;
1280 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
1281 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1282 return 0;
1283}
1284
1285static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1286 struct v4l2_format *f)
1287{
1288 struct au0828_fh *fh = priv;
1289 struct au0828_dev *dev = fh->dev;
1290
1291 return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
1292}
1293
1294static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1295 struct v4l2_format *f)
1296{
1297 struct au0828_fh *fh = priv;
1298 struct au0828_dev *dev = fh->dev;
1299 int rc;
1300
7f8eacd2
DH		 1301 rc = check_dev(dev);
1302 if (rc < 0)
1303 return rc;
1304
8b2f0795 1305 if (videobuf_queue_is_busy(&fh->vb_vidq)) {
62899a28 1306 printk(KERN_INFO "%s queue busy\n", __func__);
8b2f0795
DH		 1307 rc = -EBUSY;
1308 goto out;
1309 }
1310
7f8eacd2 1311 rc = au0828_set_format(dev, VIDIOC_S_FMT, f);
8b2f0795
DH		 1312out:
1313 return rc;
1314}
1315
314527ac 1316static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
8b2f0795
DH		 1317{
1318 struct au0828_fh *fh = priv;
1319 struct au0828_dev *dev = fh->dev;
1320
e58071f0
DH		 1321 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
1322 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, 1);
1323
8b2f0795
DH		 1324 /* FIXME: when we support something other than NTSC, we are going to
1325 have to make the au0828 bridge adjust the size of its capture
1326 buffer, which is currently hardcoded at 720x480 */
1327
314527ac 1328 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, norm);
c98bc032 1329 dev->std_set_in_tuner_core = 1;
e58071f0
DH		 1330
1331 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
1332 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, 0);
1333
8b2f0795
DH		 1334 return 0;
1335}
1336
1337static int vidioc_enum_input(struct file *file, void *priv,
1338 struct v4l2_input *input)
1339{
1340 struct au0828_fh *fh = priv;
1341 struct au0828_dev *dev = fh->dev;
1342 unsigned int tmp;
1343
1344 static const char *inames[] = {
3d62287e 1345 [AU0828_VMUX_UNDEFINED] = "Undefined",
8b2f0795
DH		 1346 [AU0828_VMUX_COMPOSITE] = "Composite",
1347 [AU0828_VMUX_SVIDEO] = "S-Video",
1348 [AU0828_VMUX_CABLE] = "Cable TV",
1349 [AU0828_VMUX_TELEVISION] = "Television",
1350 [AU0828_VMUX_DVB] = "DVB",
1351 [AU0828_VMUX_DEBUG] = "tv debug"
1352 };
1353
1354 tmp = input->index;
1355
f5e20c34 1356 if (tmp >= AU0828_MAX_INPUT)
8b2f0795 1357 return -EINVAL;
62899a28 1358 if (AUVI_INPUT(tmp).type == 0)
8b2f0795
DH		 1359 return -EINVAL;
1360
8b2f0795 1361 input->index = tmp;
f1add5b5 1362 strcpy(input->name, inames[AUVI_INPUT(tmp).type]);
62899a28 1363 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
a2cf96f9 1364 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) {
8b2f0795 1365 input->type |= V4L2_INPUT_TYPE_TUNER;
a2cf96f9
HV		 1366 input->audioset = 1;
1367 } else {
8b2f0795 1368 input->type |= V4L2_INPUT_TYPE_CAMERA;
a2cf96f9
HV		 1369 input->audioset = 2;
1370 }
8b2f0795
DH		 1371
1372 input->std = dev->vdev->tvnorms;
1373
1374 return 0;
1375}
1376
1377static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1378{
1379 struct au0828_fh *fh = priv;
1380 struct au0828_dev *dev = fh->dev;
1381 *i = dev->ctrl_input;
1382 return 0;
1383}
1384
1385static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
1386{
1387 struct au0828_fh *fh = priv;
1388 struct au0828_dev *dev = fh->dev;
1389 int i;
8b2f0795 1390
62899a28 1391 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
8b2f0795 1392 index);
62899a28 1393 if (index >= AU0828_MAX_INPUT)
8b2f0795 1394 return -EINVAL;
62899a28 1395 if (AUVI_INPUT(index).type == 0)
8b2f0795
DH		 1396 return -EINVAL;
1397 dev->ctrl_input = index;
1398
62899a28 1399 switch (AUVI_INPUT(index).type) {
8b2f0795 1400 case AU0828_VMUX_SVIDEO:
8b2f0795 1401 dev->input_type = AU0828_VMUX_SVIDEO;
a2cf96f9 1402 dev->ctrl_ainput = 1;
8b2f0795 1403 break;
8b2f0795 1404 case AU0828_VMUX_COMPOSITE:
8b2f0795 1405 dev->input_type = AU0828_VMUX_COMPOSITE;
a2cf96f9 1406 dev->ctrl_ainput = 1;
8b2f0795 1407 break;
8b2f0795 1408 case AU0828_VMUX_TELEVISION:
8b2f0795 1409 dev->input_type = AU0828_VMUX_TELEVISION;
a2cf96f9 1410 dev->ctrl_ainput = 0;
8b2f0795 1411 break;
8b2f0795 1412 default:
a1094c4c
DH		 1413 dprintk(1, "VIDIOC_S_INPUT unknown input type set [%d]\n",
1414 AUVI_INPUT(index).type);
1415 break;
8b2f0795
DH		 1416 }
1417
5325b427
HV		 1418 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
1419 AUVI_INPUT(index).vmux, 0, 0);
8b2f0795
DH		 1420
1421 for (i = 0; i < AU0828_MAX_INPUT; i++) {
1422 int enable = 0;
62899a28 1423 if (AUVI_INPUT(i).audio_setup == NULL)
8b2f0795 1424 continue;
8b2f0795
DH		 1425
1426 if (i == index)
1427 enable = 1;
1428 else
1429 enable = 0;
1430 if (enable) {
f1add5b5 1431 (AUVI_INPUT(i).audio_setup)(dev, enable);
8b2f0795
DH		 1432 } else {
1433 /* Make sure we leave it turned on if some
1434 other input is routed to this callback */
f1add5b5
DH		 1435 if ((AUVI_INPUT(i).audio_setup) !=
1436 ((AUVI_INPUT(index).audio_setup))) {
1437 (AUVI_INPUT(i).audio_setup)(dev, enable);
8b2f0795
DH		 1438 }
1439 }
1440 }
1441
5325b427
HV		 1442 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
1443 AUVI_INPUT(index).amux, 0, 0);
8b2f0795
DH		 1444 return 0;
1445}
1446
a2cf96f9
HV		 1447static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a)
1448{
1449 if (a->index > 1)
1450 return -EINVAL;
1451
1452 if (a->index == 0)
1453 strcpy(a->name, "Television");
1454 else
1455 strcpy(a->name, "Line in");
1456
1457 a->capability = V4L2_AUDCAP_STEREO;
1458 return 0;
1459}
1460
8b2f0795
DH		 1461static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1462{
1463 struct au0828_fh *fh = priv;
1464 struct au0828_dev *dev = fh->dev;
8b2f0795 1465
a2cf96f9
HV		 1466 a->index = dev->ctrl_ainput;
1467 if (a->index == 0)
8b2f0795
DH		 1468 strcpy(a->name, "Television");
1469 else
1470 strcpy(a->name, "Line in");
1471
1472 a->capability = V4L2_AUDCAP_STEREO;
8b2f0795
DH		 1473 return 0;
1474}
1475
0e8025b9 1476static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)
8b2f0795
DH		 1477{
1478 struct au0828_fh *fh = priv;
1479 struct au0828_dev *dev = fh->dev;
a2cf96f9 1480
62899a28 1481 if (a->index != dev->ctrl_ainput)
8b2f0795
DH		 1482 return -EINVAL;
1483 return 0;
1484}
1485
8b2f0795
DH		 1486static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1487{
1488 struct au0828_fh *fh = priv;
1489 struct au0828_dev *dev = fh->dev;
1490
62899a28 1491 if (t->index != 0)
8b2f0795
DH		 1492 return -EINVAL;
1493
8b2f0795 1494 strcpy(t->name, "Auvitek tuner");
2689d3dc 1495 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
8b2f0795
DH		 1496 return 0;
1497}
1498
1499static int vidioc_s_tuner(struct file *file, void *priv,
2f73c7c5 1500 const struct v4l2_tuner *t)
8b2f0795
DH		 1501{
1502 struct au0828_fh *fh = priv;
1503 struct au0828_dev *dev = fh->dev;
1504
62899a28 1505 if (t->index != 0)
8b2f0795
DH		 1506 return -EINVAL;
1507
e58071f0
DH		 1508 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
1509 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, 1);
1510
2689d3dc 1511 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
e58071f0
DH		 1512
1513 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
1514 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, 0);
1515
8b2f0795
DH		 1516 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
1517 t->afc);
e58071f0 1518
8b2f0795
DH		 1519 return 0;
1520
1521}
1522
1523static int vidioc_g_frequency(struct file *file, void *priv,
1524 struct v4l2_frequency *freq)
1525{
1526 struct au0828_fh *fh = priv;
1527 struct au0828_dev *dev = fh->dev;
c888923d 1528
e1cf6587
HV		 1529 if (freq->tuner != 0)
1530 return -EINVAL;
8b2f0795
DH		 1531 freq->frequency = dev->ctrl_freq;
1532 return 0;
1533}
1534
1535static int vidioc_s_frequency(struct file *file, void *priv,
b530a447 1536 const struct v4l2_frequency *freq)
8b2f0795
DH		 1537{
1538 struct au0828_fh *fh = priv;
1539 struct au0828_dev *dev = fh->dev;
e1cf6587 1540 struct v4l2_frequency new_freq = *freq;
8b2f0795 1541
62899a28 1542 if (freq->tuner != 0)
8b2f0795 1543 return -EINVAL;
8b2f0795 1544
4a03dafc
DH		 1545 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
1546 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, 1);
1547
c98bc032 1548 if (dev->std_set_in_tuner_core == 0) {
38823b29
HV		 1549 /* If we've never sent the standard in tuner core, do so now.
1550 We don't do this at device probe because we don't want to
1551 incur the cost of a firmware load */
1552 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std,
1553 dev->vdev->tvnorms);
1554 dev->std_set_in_tuner_core = 1;
c98bc032
DH		 1555 }
1556
2689d3dc 1557 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
e1cf6587
HV		 1558 /* Get the actual set (and possibly clamped) frequency */
1559 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
1560 dev->ctrl_freq = new_freq.frequency;
8b2f0795 1561
4a03dafc
DH		 1562 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
1563 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, 0);
1564
8b2f0795
DH		 1565 au0828_analog_stream_reset(dev);
1566
1567 return 0;
1568}
1569
7f8eacd2
DH		 1570
1571/* RAW VBI ioctls */
1572
1573static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1574 struct v4l2_format *format)
1575{
1576 struct au0828_fh *fh = priv;
1577 struct au0828_dev *dev = fh->dev;
1578
1579 format->fmt.vbi.samples_per_line = dev->vbi_width;
1580 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1581 format->fmt.vbi.offset = 0;
1582 format->fmt.vbi.flags = 0;
1583 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
1584
1585 format->fmt.vbi.count[0] = dev->vbi_height;
1586 format->fmt.vbi.count[1] = dev->vbi_height;
1587 format->fmt.vbi.start[0] = 21;
1588 format->fmt.vbi.start[1] = 284;
1589
1590 return 0;
1591}
1592
8b2f0795
DH		 1593static int vidioc_g_chip_ident(struct file *file, void *priv,
1594 struct v4l2_dbg_chip_ident *chip)
1595{
1596 struct au0828_fh *fh = priv;
1597 struct au0828_dev *dev = fh->dev;
1598 chip->ident = V4L2_IDENT_NONE;
1599 chip->revision = 0;
1600
d9109bef
DH		 1601 if (v4l2_chip_match_host(&chip->match)) {
1602 chip->ident = V4L2_IDENT_AU0828;
1603 return 0;
1604 }
1605
2689d3dc 1606 v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_chip_ident, chip);
d9109bef
DH		 1607 if (chip->ident == V4L2_IDENT_NONE)
1608 return -EINVAL;
1609
8b2f0795
DH		 1610 return 0;
1611}
1612
1613static int vidioc_cropcap(struct file *file, void *priv,
1614 struct v4l2_cropcap *cc)
1615{
1616 struct au0828_fh *fh = priv;
1617 struct au0828_dev *dev = fh->dev;
1618
62899a28 1619 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
8b2f0795
DH		 1620 return -EINVAL;
1621
1622 cc->bounds.left = 0;
1623 cc->bounds.top = 0;
1624 cc->bounds.width = dev->width;
1625 cc->bounds.height = dev->height;
1626
1627 cc->defrect = cc->bounds;
1628
1629 cc->pixelaspect.numerator = 54;
1630 cc->pixelaspect.denominator = 59;
1631
1632 return 0;
1633}
1634
1635static int vidioc_streamon(struct file *file, void *priv,
1636 enum v4l2_buf_type type)
1637{
7f8eacd2
DH		 1638 struct au0828_fh *fh = priv;
1639 struct au0828_dev *dev = fh->dev;
1640 int rc = -EINVAL;
8b2f0795
DH		 1641
1642 rc = check_dev(dev);
1643 if (rc < 0)
1644 return rc;
1645
7f8eacd2
DH		 1646 if (unlikely(type != fh->type))
1647 return -EINVAL;
1648
1649 dprintk(1, "vidioc_streamon fh=%p t=%d fh->res=%d dev->res=%d\n",
1650 fh, type, fh->resources, dev->resources);
1651
1652 if (unlikely(!res_get(fh, get_ressource(fh))))
1653 return -EBUSY;
1654
8b2f0795
DH		 1655 if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1656 au0828_analog_stream_enable(dev);
2689d3dc 1657 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 1);
8b2f0795
DH		 1658 }
1659
78ca5005 1660 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
8b2f0795 1661 rc = videobuf_streamon(&fh->vb_vidq);
78ca5005
DH		 1662 dev->vid_timeout_running = 1;
1663 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
1664 } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
7f8eacd2 1665 rc = videobuf_streamon(&fh->vb_vbiq);
78ca5005
DH		 1666 dev->vbi_timeout_running = 1;
1667 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1668 }
8b2f0795
DH		 1669
1670 return rc;
1671}
1672
1673static int vidioc_streamoff(struct file *file, void *priv,
1674 enum v4l2_buf_type type)
1675{
7f8eacd2
DH		 1676 struct au0828_fh *fh = priv;
1677 struct au0828_dev *dev = fh->dev;
1678 int rc;
1679 int i;
8b2f0795
DH		 1680
1681 rc = check_dev(dev);
1682 if (rc < 0)
1683 return rc;
1684
7f8eacd2
DH		 1685 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1686 fh->type != V4L2_BUF_TYPE_VBI_CAPTURE)
8b2f0795
DH		 1687 return -EINVAL;
1688 if (type != fh->type)
1689 return -EINVAL;
1690
7f8eacd2
DH		 1691 dprintk(1, "vidioc_streamoff fh=%p t=%d fh->res=%d dev->res=%d\n",
1692 fh, type, fh->resources, dev->resources);
1693
1694 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
78ca5005
DH		 1695 dev->vid_timeout_running = 0;
1696 del_timer_sync(&dev->vid_timeout);
1697
2689d3dc 1698 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
7f8eacd2
DH		 1699 rc = au0828_stream_interrupt(dev);
1700 if (rc != 0)
1701 return rc;
8b2f0795 1702
7f8eacd2
DH		 1703 for (i = 0; i < AU0828_MAX_INPUT; i++) {
1704 if (AUVI_INPUT(i).audio_setup == NULL)
1705 continue;
1706 (AUVI_INPUT(i).audio_setup)(dev, 0);
1707 }
8b2f0795 1708
a595c1ce
DH		 1709 if (res_check(fh, AU0828_RESOURCE_VIDEO)) {
1710 videobuf_streamoff(&fh->vb_vidq);
1711 res_free(fh, AU0828_RESOURCE_VIDEO);
1712 }
7f8eacd2 1713 } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
78ca5005
DH		 1714 dev->vbi_timeout_running = 0;
1715 del_timer_sync(&dev->vbi_timeout);
1716
a595c1ce
DH		 1717 if (res_check(fh, AU0828_RESOURCE_VBI)) {
1718 videobuf_streamoff(&fh->vb_vbiq);
1719 res_free(fh, AU0828_RESOURCE_VBI);
1720 }
7f8eacd2 1721 }
8b2f0795
DH		 1722
1723 return 0;
1724}
1725
80c6e358 1726#ifdef CONFIG_VIDEO_ADV_DEBUG
8b2f0795
DH		 1727static int vidioc_g_register(struct file *file, void *priv,
1728 struct v4l2_dbg_register *reg)
1729{
1730 struct au0828_fh *fh = priv;
1731 struct au0828_dev *dev = fh->dev;
1732
1733 switch (reg->match.type) {
1734 case V4L2_CHIP_MATCH_I2C_DRIVER:
2689d3dc 1735 v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_register, reg);
8b2f0795
DH		 1736 return 0;
1737 default:
364d2db2
DH		 1738 if (!v4l2_chip_match_host(&reg->match))
1739 return -EINVAL;
8b2f0795 1740 }
364d2db2
DH		 1741
1742 reg->val = au0828_read(dev, reg->reg);
1743 return 0;
8b2f0795
DH		 1744}
1745
1746static int vidioc_s_register(struct file *file, void *priv,
977ba3b1 1747 const struct v4l2_dbg_register *reg)
8b2f0795
DH		 1748{
1749 struct au0828_fh *fh = priv;
1750 struct au0828_dev *dev = fh->dev;
1751
1752 switch (reg->match.type) {
1753 case V4L2_CHIP_MATCH_I2C_DRIVER:
2689d3dc 1754 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_register, reg);
8b2f0795
DH		 1755 return 0;
1756 default:
364d2db2
DH		 1757 if (!v4l2_chip_match_host(&reg->match))
1758 return -EINVAL;
8b2f0795 1759 }
364d2db2 1760 return au0828_writereg(dev, reg->reg, reg->val);
8b2f0795 1761}
80c6e358 1762#endif
8b2f0795
DH		 1763
1764static int vidioc_reqbufs(struct file *file, void *priv,
1765 struct v4l2_requestbuffers *rb)
1766{
1767 struct au0828_fh *fh = priv;
1768 struct au0828_dev *dev = fh->dev;
1769 int rc;
1770
1771 rc = check_dev(dev);
1772 if (rc < 0)
1773 return rc;
1774
54ebb8b8
DH		 1775 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1776 rc = videobuf_reqbufs(&fh->vb_vidq, rb);
1777 else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
1778 rc = videobuf_reqbufs(&fh->vb_vbiq, rb);
1779
1780 return rc;
8b2f0795
DH		 1781}
1782
1783static int vidioc_querybuf(struct file *file, void *priv,
1784 struct v4l2_buffer *b)
1785{
1786 struct au0828_fh *fh = priv;
1787 struct au0828_dev *dev = fh->dev;
1788 int rc;
1789
1790 rc = check_dev(dev);
1791 if (rc < 0)
1792 return rc;
1793
54ebb8b8
DH		 1794 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1795 rc = videobuf_querybuf(&fh->vb_vidq, b);
1796 else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
1797 rc = videobuf_querybuf(&fh->vb_vbiq, b);
1798
1799 return rc;
8b2f0795
DH		 1800}
1801
1802static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
1803{
1804 struct au0828_fh *fh = priv;
1805 struct au0828_dev *dev = fh->dev;
1806 int rc;
1807
1808 rc = check_dev(dev);
1809 if (rc < 0)
1810 return rc;
1811
54ebb8b8
DH		 1812 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1813 rc = videobuf_qbuf(&fh->vb_vidq, b);
1814 else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
1815 rc = videobuf_qbuf(&fh->vb_vbiq, b);
1816
1817 return rc;
8b2f0795
DH		 1818}
1819
1820static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
1821{
1822 struct au0828_fh *fh = priv;
1823 struct au0828_dev *dev = fh->dev;
1824 int rc;
1825
1826 rc = check_dev(dev);
1827 if (rc < 0)
1828 return rc;
1829
1830 /* Workaround for a bug in the au0828 hardware design that sometimes
1831 results in the colorspace being inverted */
1832 if (dev->greenscreen_detected == 1) {
1833 dprintk(1, "Detected green frame. Resetting stream...\n");
1834 au0828_analog_stream_reset(dev);
1835 dev->greenscreen_detected = 0;
1836 }
1837
54ebb8b8
DH		 1838 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1839 rc = videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK);
1840 else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
1841 rc = videobuf_dqbuf(&fh->vb_vbiq, b, file->f_flags & O_NONBLOCK);
1842
1843 return rc;
8b2f0795
DH		 1844}
1845
8b2f0795
DH		 1846static struct v4l2_file_operations au0828_v4l_fops = {
1847 .owner = THIS_MODULE,
1848 .open = au0828_v4l2_open,
1849 .release = au0828_v4l2_close,
1850 .read = au0828_v4l2_read,
1851 .poll = au0828_v4l2_poll,
1852 .mmap = au0828_v4l2_mmap,
549ee4df 1853 .unlocked_ioctl = video_ioctl2,
8b2f0795
DH		 1854};
1855
1856static const struct v4l2_ioctl_ops video_ioctl_ops = {
1857 .vidioc_querycap = vidioc_querycap,
1858 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1859 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1860 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1861 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
5a5a4e16 1862 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
7f8eacd2 1863 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
a2cf96f9 1864 .vidioc_enumaudio = vidioc_enumaudio,
8b2f0795
DH		 1865 .vidioc_g_audio = vidioc_g_audio,
1866 .vidioc_s_audio = vidioc_s_audio,
1867 .vidioc_cropcap = vidioc_cropcap,
8b2f0795
DH		 1868 .vidioc_reqbufs = vidioc_reqbufs,
1869 .vidioc_querybuf = vidioc_querybuf,
1870 .vidioc_qbuf = vidioc_qbuf,
1871 .vidioc_dqbuf = vidioc_dqbuf,
1872 .vidioc_s_std = vidioc_s_std,
1873 .vidioc_enum_input = vidioc_enum_input,
1874 .vidioc_g_input = vidioc_g_input,
1875 .vidioc_s_input = vidioc_s_input,
8b2f0795
DH		 1876 .vidioc_streamon = vidioc_streamon,
1877 .vidioc_streamoff = vidioc_streamoff,
1878 .vidioc_g_tuner = vidioc_g_tuner,
1879 .vidioc_s_tuner = vidioc_s_tuner,
1880 .vidioc_g_frequency = vidioc_g_frequency,
1881 .vidioc_s_frequency = vidioc_s_frequency,
1882#ifdef CONFIG_VIDEO_ADV_DEBUG
1883 .vidioc_g_register = vidioc_g_register,
1884 .vidioc_s_register = vidioc_s_register,
8b2f0795 1885#endif
80c6e358 1886 .vidioc_g_chip_ident = vidioc_g_chip_ident,
8b2f0795
DH		 1887};
1888
1889static const struct video_device au0828_video_template = {
1890 .fops = &au0828_v4l_fops,
1891 .release = video_device_release,
1892 .ioctl_ops = &video_ioctl_ops,
0ef21071
DH		 1893 .tvnorms = V4L2_STD_NTSC_M,
1894 .current_norm = V4L2_STD_NTSC_M,
8b2f0795
DH		 1895};
1896
1897/**************************************************************************/
1898
fc4ce6cd
DH		 1899int au0828_analog_register(struct au0828_dev *dev,
1900 struct usb_interface *interface)
8b2f0795
DH		 1901{
1902 int retval = -ENOMEM;
fc4ce6cd
DH		 1903 struct usb_host_interface *iface_desc;
1904 struct usb_endpoint_descriptor *endpoint;
d63b21bf 1905 int i, ret;
8b2f0795
DH		 1906
1907 dprintk(1, "au0828_analog_register called!\n");
1908
fc4ce6cd
DH		 1909 /* set au0828 usb interface0 to as5 */
1910 retval = usb_set_interface(dev->usbdev,
62899a28 1911 interface->cur_altsetting->desc.bInterfaceNumber, 5);
fc4ce6cd 1912 if (retval != 0) {
62899a28 1913 printk(KERN_INFO "Failure setting usb interface0 to as5\n");
fc4ce6cd
DH		 1914 return retval;
1915 }
1916
1917 /* Figure out which endpoint has the isoc interface */
1918 iface_desc = interface->cur_altsetting;
62899a28 1919 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
fc4ce6cd 1920 endpoint = &iface_desc->endpoint[i].desc;
62899a28
DH		 1921 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1922 == USB_DIR_IN) &&
1923 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1924 == USB_ENDPOINT_XFER_ISOC)) {
fc4ce6cd
DH		 1925
1926 /* we find our isoc in endpoint */
1927 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
62899a28
DH		 1928 dev->max_pkt_size = (tmp & 0x07ff) *
1929 (((tmp & 0x1800) >> 11) + 1);
fc4ce6cd
DH		 1930 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
1931 }
1932 }
62899a28
DH		 1933 if (!(dev->isoc_in_endpointaddr)) {
1934 printk(KERN_INFO "Could not locate isoc endpoint\n");
fc4ce6cd
DH		 1935 kfree(dev);
1936 return -ENODEV;
1937 }
1938
8b2f0795
DH		 1939 init_waitqueue_head(&dev->open);
1940 spin_lock_init(&dev->slock);
8b2f0795 1941
7f8eacd2 1942 /* init video dma queues */
8b2f0795
DH		 1943 INIT_LIST_HEAD(&dev->vidq.active);
1944 INIT_LIST_HEAD(&dev->vidq.queued);
7f8eacd2
DH		 1945 INIT_LIST_HEAD(&dev->vbiq.active);
1946 INIT_LIST_HEAD(&dev->vbiq.queued);
8b2f0795 1947
78ca5005
DH		 1948 dev->vid_timeout.function = au0828_vid_buffer_timeout;
1949 dev->vid_timeout.data = (unsigned long) dev;
1950 init_timer(&dev->vid_timeout);
1951
1952 dev->vbi_timeout.function = au0828_vbi_buffer_timeout;
1953 dev->vbi_timeout.data = (unsigned long) dev;
1954 init_timer(&dev->vbi_timeout);
1955
8b2f0795
DH		 1956 dev->width = NTSC_STD_W;
1957 dev->height = NTSC_STD_H;
1958 dev->field_size = dev->width * dev->height;
1959 dev->frame_size = dev->field_size << 1;
1960 dev->bytesperline = dev->width << 1;
1961 dev->ctrl_ainput = 0;
e1cf6587 1962 dev->ctrl_freq = 960;
8b2f0795
DH		 1963
1964 /* allocate and fill v4l2 video struct */
1965 dev->vdev = video_device_alloc();
62899a28 1966 if (NULL == dev->vdev) {
8b2f0795
DH		 1967 dprintk(1, "Can't allocate video_device.\n");
1968 return -ENOMEM;
1969 }
1970
7f8eacd2 1971 /* allocate the VBI struct */
8b2f0795 1972 dev->vbi_dev = video_device_alloc();
62899a28 1973 if (NULL == dev->vbi_dev) {
8b2f0795 1974 dprintk(1, "Can't allocate vbi_device.\n");
d63b21bf
JL		 1975 ret = -ENOMEM;
1976 goto err_vdev;
8b2f0795
DH		 1977 }
1978
1979 /* Fill the video capture device struct */
1980 *dev->vdev = au0828_video_template;
e8c26f45 1981 dev->vdev->v4l2_dev = &dev->v4l2_dev;
549ee4df 1982 dev->vdev->lock = &dev->lock;
8b2f0795
DH		 1983 strcpy(dev->vdev->name, "au0828a video");
1984
1985 /* Setup the VBI device */
1986 *dev->vbi_dev = au0828_video_template;
e8c26f45 1987 dev->vbi_dev->v4l2_dev = &dev->v4l2_dev;
549ee4df 1988 dev->vbi_dev->lock = &dev->lock;
8b2f0795
DH		 1989 strcpy(dev->vbi_dev->name, "au0828a vbi");
1990
8b2f0795 1991 /* Register the v4l2 device */
63b0d5ad 1992 video_set_drvdata(dev->vdev, dev);
62899a28
DH		 1993 retval = video_register_device(dev->vdev, VFL_TYPE_GRABBER, -1);
1994 if (retval != 0) {
1995 dprintk(1, "unable to register video device (error = %d).\n",
1996 retval);
d63b21bf
JL		 1997 ret = -ENODEV;
1998 goto err_vbi_dev;
8b2f0795
DH		 1999 }
2000
2001 /* Register the vbi device */
63b0d5ad 2002 video_set_drvdata(dev->vbi_dev, dev);
62899a28
DH		 2003 retval = video_register_device(dev->vbi_dev, VFL_TYPE_VBI, -1);
2004 if (retval != 0) {
2005 dprintk(1, "unable to register vbi device (error = %d).\n",
2006 retval);
d63b21bf
JL		 2007 ret = -ENODEV;
2008 goto err_vbi_dev;
8b2f0795
DH		 2009 }
2010
62899a28 2011 dprintk(1, "%s completed!\n", __func__);
8b2f0795
DH		 2012
2013 return 0;
d63b21bf
JL		 2014
2015err_vbi_dev:
2016 video_device_release(dev->vbi_dev);
2017err_vdev:
2018 video_device_release(dev->vdev);
2019 return ret;
8b2f0795
DH		 2020}
2021
kernel source for telekom puls (alcatel/mediatek)