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[media] au0828: don't change global state information on open()
[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>
83b09422 38#include <media/v4l2-event.h>
8b2f0795
DH		 39#include <media/v4l2-chip-ident.h>
40#include <media/tuner.h>
41#include "au0828.h"
42#include "au0828-reg.h"
43
8b2f0795
DH		 44static DEFINE_MUTEX(au0828_sysfs_lock);
45
8b2f0795
DH		 46/* ------------------------------------------------------------------
47 Videobuf operations
48 ------------------------------------------------------------------*/
49
50static unsigned int isoc_debug;
51module_param(isoc_debug, int, 0644);
52MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
53
54#define au0828_isocdbg(fmt, arg...) \
55do {\
56 if (isoc_debug) { \
57 printk(KERN_INFO "au0828 %s :"fmt, \
58 __func__ , ##arg); \
59 } \
60 } while (0)
61
fa09cb9a
HV		 62static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val)
63{
64 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
65 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val);
66}
67
8b2f0795
DH		 68static inline void print_err_status(struct au0828_dev *dev,
69 int packet, int status)
70{
71 char *errmsg = "Unknown";
72
73 switch (status) {
74 case -ENOENT:
75 errmsg = "unlinked synchronuously";
76 break;
77 case -ECONNRESET:
78 errmsg = "unlinked asynchronuously";
79 break;
80 case -ENOSR:
81 errmsg = "Buffer error (overrun)";
82 break;
83 case -EPIPE:
84 errmsg = "Stalled (device not responding)";
85 break;
86 case -EOVERFLOW:
87 errmsg = "Babble (bad cable?)";
88 break;
89 case -EPROTO:
90 errmsg = "Bit-stuff error (bad cable?)";
91 break;
92 case -EILSEQ:
93 errmsg = "CRC/Timeout (could be anything)";
94 break;
95 case -ETIME:
96 errmsg = "Device does not respond";
97 break;
98 }
99 if (packet < 0) {
100 au0828_isocdbg("URB status %d [%s].\n", status, errmsg);
101 } else {
102 au0828_isocdbg("URB packet %d, status %d [%s].\n",
103 packet, status, errmsg);
104 }
105}
106
107static int check_dev(struct au0828_dev *dev)
108{
109 if (dev->dev_state & DEV_DISCONNECTED) {
62899a28 110 printk(KERN_INFO "v4l2 ioctl: device not present\n");
8b2f0795
DH		 111 return -ENODEV;
112 }
113
114 if (dev->dev_state & DEV_MISCONFIGURED) {
62899a28 115 printk(KERN_INFO "v4l2 ioctl: device is misconfigured; "
8b2f0795
DH		 116 "close and open it again\n");
117 return -EIO;
118 }
119 return 0;
120}
121
122/*
123 * IRQ callback, called by URB callback
124 */
125static void au0828_irq_callback(struct urb *urb)
126{
127 struct au0828_dmaqueue *dma_q = urb->context;
128 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
78ca5005 129 unsigned long flags = 0;
e92ba283 130 int i;
8b2f0795
DH		 131
132 switch (urb->status) {
133 case 0: /* success */
134 case -ETIMEDOUT: /* NAK */
135 break;
136 case -ECONNRESET: /* kill */
137 case -ENOENT:
138 case -ESHUTDOWN:
139 au0828_isocdbg("au0828_irq_callback called: status kill\n");
140 return;
141 default: /* unknown error */
142 au0828_isocdbg("urb completition error %d.\n", urb->status);
143 break;
144 }
145
146 /* Copy data from URB */
78ca5005 147 spin_lock_irqsave(&dev->slock, flags);
e92ba283 148 dev->isoc_ctl.isoc_copy(dev, urb);
78ca5005 149 spin_unlock_irqrestore(&dev->slock, flags);
8b2f0795
DH		 150
151 /* Reset urb buffers */
152 for (i = 0; i < urb->number_of_packets; i++) {
153 urb->iso_frame_desc[i].status = 0;
154 urb->iso_frame_desc[i].actual_length = 0;
155 }
156 urb->status = 0;
157
158 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
159 if (urb->status) {
160 au0828_isocdbg("urb resubmit failed (error=%i)\n",
161 urb->status);
162 }
163}
164
165/*
166 * Stop and Deallocate URBs
167 */
a094ca46 168static void au0828_uninit_isoc(struct au0828_dev *dev)
8b2f0795
DH		 169{
170 struct urb *urb;
171 int i;
172
173 au0828_isocdbg("au0828: called au0828_uninit_isoc\n");
174
175 dev->isoc_ctl.nfields = -1;
176 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
177 urb = dev->isoc_ctl.urb[i];
178 if (urb) {
179 if (!irqs_disabled())
180 usb_kill_urb(urb);
181 else
182 usb_unlink_urb(urb);
183
184 if (dev->isoc_ctl.transfer_buffer[i]) {
997ea58e 185 usb_free_coherent(dev->usbdev,
8b2f0795
DH		 186 urb->transfer_buffer_length,
187 dev->isoc_ctl.transfer_buffer[i],
188 urb->transfer_dma);
189 }
190 usb_free_urb(urb);
191 dev->isoc_ctl.urb[i] = NULL;
192 }
193 dev->isoc_ctl.transfer_buffer[i] = NULL;
194 }
195
196 kfree(dev->isoc_ctl.urb);
197 kfree(dev->isoc_ctl.transfer_buffer);
198
199 dev->isoc_ctl.urb = NULL;
200 dev->isoc_ctl.transfer_buffer = NULL;
201 dev->isoc_ctl.num_bufs = 0;
202}
203
204/*
205 * Allocate URBs and start IRQ
206 */
a094ca46
MCC		 207static int au0828_init_isoc(struct au0828_dev *dev, int max_packets,
208 int num_bufs, int max_pkt_size,
209 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb))
8b2f0795
DH		 210{
211 struct au0828_dmaqueue *dma_q = &dev->vidq;
212 int i;
213 int sb_size, pipe;
214 struct urb *urb;
215 int j, k;
216 int rc;
217
218 au0828_isocdbg("au0828: called au0828_prepare_isoc\n");
219
220 /* De-allocates all pending stuff */
221 au0828_uninit_isoc(dev);
222
223 dev->isoc_ctl.isoc_copy = isoc_copy;
224 dev->isoc_ctl.num_bufs = num_bufs;
225
226 dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL);
227 if (!dev->isoc_ctl.urb) {
228 au0828_isocdbg("cannot alloc memory for usb buffers\n");
229 return -ENOMEM;
230 }
231
232 dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs,
233 GFP_KERNEL);
234 if (!dev->isoc_ctl.transfer_buffer) {
235 au0828_isocdbg("cannot allocate memory for usb transfer\n");
236 kfree(dev->isoc_ctl.urb);
237 return -ENOMEM;
238 }
239
240 dev->isoc_ctl.max_pkt_size = max_pkt_size;
241 dev->isoc_ctl.buf = NULL;
242
243 sb_size = max_packets * dev->isoc_ctl.max_pkt_size;
244
245 /* allocate urbs and transfer buffers */
246 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
247 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
248 if (!urb) {
249 au0828_isocdbg("cannot alloc isoc_ctl.urb %i\n", i);
250 au0828_uninit_isoc(dev);
251 return -ENOMEM;
252 }
253 dev->isoc_ctl.urb[i] = urb;
254
997ea58e 255 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev,
8b2f0795
DH		 256 sb_size, GFP_KERNEL, &urb->transfer_dma);
257 if (!dev->isoc_ctl.transfer_buffer[i]) {
258 printk("unable to allocate %i bytes for transfer"
259 " buffer %i%s\n",
260 sb_size, i,
261 in_interrupt() ? " while in int" : "");
262 au0828_uninit_isoc(dev);
263 return -ENOMEM;
264 }
265 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
266
267 pipe = usb_rcvisocpipe(dev->usbdev,
268 dev->isoc_in_endpointaddr),
269
270 usb_fill_int_urb(urb, dev->usbdev, pipe,
271 dev->isoc_ctl.transfer_buffer[i], sb_size,
272 au0828_irq_callback, dma_q, 1);
273
274 urb->number_of_packets = max_packets;
fadadb7d 275 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
8b2f0795
DH		 276
277 k = 0;
278 for (j = 0; j < max_packets; j++) {
279 urb->iso_frame_desc[j].offset = k;
280 urb->iso_frame_desc[j].length =
281 dev->isoc_ctl.max_pkt_size;
282 k += dev->isoc_ctl.max_pkt_size;
283 }
284 }
285
286 init_waitqueue_head(&dma_q->wq);
287
288 /* submit urbs and enables IRQ */
289 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
290 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
291 if (rc) {
292 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
293 i, rc);
294 au0828_uninit_isoc(dev);
295 return rc;
296 }
297 }
298
299 return 0;
300}
301
302/*
303 * Announces that a buffer were filled and request the next
304 */
305static inline void buffer_filled(struct au0828_dev *dev,
306 struct au0828_dmaqueue *dma_q,
307 struct au0828_buffer *buf)
308{
309 /* Advice that buffer was filled */
310 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
311
312 buf->vb.state = VIDEOBUF_DONE;
313 buf->vb.field_count++;
8e6057b5 314 v4l2_get_timestamp(&buf->vb.ts);
8b2f0795
DH		 315
316 dev->isoc_ctl.buf = NULL;
317
318 list_del(&buf->vb.queue);
319 wake_up(&buf->vb.done);
320}
321
7f8eacd2
DH		 322static inline void vbi_buffer_filled(struct au0828_dev *dev,
323 struct au0828_dmaqueue *dma_q,
324 struct au0828_buffer *buf)
325{
326 /* Advice that buffer was filled */
327 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
328
329 buf->vb.state = VIDEOBUF_DONE;
330 buf->vb.field_count++;
8e6057b5 331 v4l2_get_timestamp(&buf->vb.ts);
7f8eacd2
DH		 332
333 dev->isoc_ctl.vbi_buf = NULL;
334
335 list_del(&buf->vb.queue);
336 wake_up(&buf->vb.done);
337}
338
8b2f0795
DH		 339/*
340 * Identify the buffer header type and properly handles
341 */
342static void au0828_copy_video(struct au0828_dev *dev,
343 struct au0828_dmaqueue *dma_q,
344 struct au0828_buffer *buf,
345 unsigned char *p,
346 unsigned char *outp, unsigned long len)
347{
348 void *fieldstart, *startwrite, *startread;
349 int linesdone, currlinedone, offset, lencopy, remain;
350 int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */
351
7f8eacd2
DH		 352 if (len == 0)
353 return;
354
8b2f0795
DH		 355 if (dma_q->pos + len > buf->vb.size)
356 len = buf->vb.size - dma_q->pos;
357
358 startread = p;
359 remain = len;
360
361 /* Interlaces frame */
362 if (buf->top_field)
363 fieldstart = outp;
364 else
365 fieldstart = outp + bytesperline;
366
367 linesdone = dma_q->pos / bytesperline;
368 currlinedone = dma_q->pos % bytesperline;
369 offset = linesdone * bytesperline * 2 + currlinedone;
370 startwrite = fieldstart + offset;
371 lencopy = bytesperline - currlinedone;
372 lencopy = lencopy > remain ? remain : lencopy;
373
374 if ((char *)startwrite + lencopy > (char *)outp + buf->vb.size) {
375 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
376 ((char *)startwrite + lencopy) -
377 ((char *)outp + buf->vb.size));
378 remain = (char *)outp + buf->vb.size - (char *)startwrite;
379 lencopy = remain;
380 }
381 if (lencopy <= 0)
382 return;
383 memcpy(startwrite, startread, lencopy);
384
385 remain -= lencopy;
386
387 while (remain > 0) {
388 startwrite += lencopy + bytesperline;
389 startread += lencopy;
390 if (bytesperline > remain)
391 lencopy = remain;
392 else
393 lencopy = bytesperline;
394
395 if ((char *)startwrite + lencopy > (char *)outp +
396 buf->vb.size) {
62899a28 397 au0828_isocdbg("Overflow %zi bytes past buf end (2)\n",
8b2f0795
DH		 398 ((char *)startwrite + lencopy) -
399 ((char *)outp + buf->vb.size));
400 lencopy = remain = (char *)outp + buf->vb.size -
401 (char *)startwrite;
402 }
403 if (lencopy <= 0)
404 break;
405
406 memcpy(startwrite, startread, lencopy);
407
408 remain -= lencopy;
409 }
410
411 if (offset > 1440) {
412 /* We have enough data to check for greenscreen */
62899a28 413 if (outp[0] < 0x60 && outp[1440] < 0x60)
8b2f0795 414 dev->greenscreen_detected = 1;
8b2f0795
DH		 415 }
416
417 dma_q->pos += len;
418}
419
420/*
421 * video-buf generic routine to get the next available buffer
422 */
423static inline void get_next_buf(struct au0828_dmaqueue *dma_q,
424 struct au0828_buffer **buf)
425{
426 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
427
428 if (list_empty(&dma_q->active)) {
429 au0828_isocdbg("No active queue to serve\n");
430 dev->isoc_ctl.buf = NULL;
431 *buf = NULL;
432 return;
433 }
434
435 /* Get the next buffer */
436 *buf = list_entry(dma_q->active.next, struct au0828_buffer, vb.queue);
437 dev->isoc_ctl.buf = *buf;
438
439 return;
440}
441
7f8eacd2
DH		 442static void au0828_copy_vbi(struct au0828_dev *dev,
443 struct au0828_dmaqueue *dma_q,
444 struct au0828_buffer *buf,
445 unsigned char *p,
446 unsigned char *outp, unsigned long len)
447{
448 unsigned char *startwrite, *startread;
b5f5933a 449 int bytesperline;
7f8eacd2
DH		 450 int i, j = 0;
451
452 if (dev == NULL) {
453 au0828_isocdbg("dev is null\n");
454 return;
455 }
456
457 if (dma_q == NULL) {
458 au0828_isocdbg("dma_q is null\n");
459 return;
460 }
461 if (buf == NULL)
462 return;
463 if (p == NULL) {
464 au0828_isocdbg("p is null\n");
465 return;
466 }
467 if (outp == NULL) {
468 au0828_isocdbg("outp is null\n");
469 return;
470 }
471
b5f5933a
DC		 472 bytesperline = dev->vbi_width;
473
7f8eacd2
DH		 474 if (dma_q->pos + len > buf->vb.size)
475 len = buf->vb.size - dma_q->pos;
476
477 startread = p;
478 startwrite = outp + (dma_q->pos / 2);
479
480 /* Make sure the bottom field populates the second half of the frame */
481 if (buf->top_field == 0)
482 startwrite += bytesperline * dev->vbi_height;
483
484 for (i = 0; i < len; i += 2)
485 startwrite[j++] = startread[i+1];
486
487 dma_q->pos += len;
488}
489
490
491/*
492 * video-buf generic routine to get the next available VBI buffer
493 */
494static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q,
495 struct au0828_buffer **buf)
496{
497 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq);
498 char *outp;
499
500 if (list_empty(&dma_q->active)) {
501 au0828_isocdbg("No active queue to serve\n");
502 dev->isoc_ctl.vbi_buf = NULL;
503 *buf = NULL;
504 return;
505 }
506
507 /* Get the next buffer */
508 *buf = list_entry(dma_q->active.next, struct au0828_buffer, vb.queue);
25985edc 509 /* Cleans up buffer - Useful for testing for frame/URB loss */
7f8eacd2
DH		 510 outp = videobuf_to_vmalloc(&(*buf)->vb);
511 memset(outp, 0x00, (*buf)->vb.size);
512
513 dev->isoc_ctl.vbi_buf = *buf;
514
515 return;
516}
517
8b2f0795
DH		 518/*
519 * Controls the isoc copy of each urb packet
520 */
521static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
522{
523 struct au0828_buffer *buf;
7f8eacd2 524 struct au0828_buffer *vbi_buf;
8b2f0795 525 struct au0828_dmaqueue *dma_q = urb->context;
7f8eacd2 526 struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq;
8b2f0795 527 unsigned char *outp = NULL;
7f8eacd2 528 unsigned char *vbioutp = NULL;
8b2f0795
DH		 529 int i, len = 0, rc = 1;
530 unsigned char *p;
531 unsigned char fbyte;
7f8eacd2
DH		 532 unsigned int vbi_field_size;
533 unsigned int remain, lencopy;
8b2f0795
DH		 534
535 if (!dev)
536 return 0;
537
538 if ((dev->dev_state & DEV_DISCONNECTED) ||
539 (dev->dev_state & DEV_MISCONFIGURED))
540 return 0;
541
542 if (urb->status < 0) {
543 print_err_status(dev, -1, urb->status);
544 if (urb->status == -ENOENT)
545 return 0;
546 }
547
548 buf = dev->isoc_ctl.buf;
549 if (buf != NULL)
550 outp = videobuf_to_vmalloc(&buf->vb);
551
7f8eacd2
DH		 552 vbi_buf = dev->isoc_ctl.vbi_buf;
553 if (vbi_buf != NULL)
554 vbioutp = videobuf_to_vmalloc(&vbi_buf->vb);
555
8b2f0795
DH		 556 for (i = 0; i < urb->number_of_packets; i++) {
557 int status = urb->iso_frame_desc[i].status;
558
559 if (status < 0) {
560 print_err_status(dev, i, status);
561 if (urb->iso_frame_desc[i].status != -EPROTO)
562 continue;
563 }
564
62899a28 565 if (urb->iso_frame_desc[i].actual_length <= 0)
8b2f0795 566 continue;
62899a28 567
8b2f0795
DH		 568 if (urb->iso_frame_desc[i].actual_length >
569 dev->max_pkt_size) {
570 au0828_isocdbg("packet bigger than packet size");
571 continue;
572 }
573
574 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
575 fbyte = p[0];
576 len = urb->iso_frame_desc[i].actual_length - 4;
577 p += 4;
578
579 if (fbyte & 0x80) {
580 len -= 4;
581 p += 4;
582 au0828_isocdbg("Video frame %s\n",
583 (fbyte & 0x40) ? "odd" : "even");
bde3bb9a 584 if (fbyte & 0x40) {
7f8eacd2
DH		 585 /* VBI */
586 if (vbi_buf != NULL)
587 vbi_buffer_filled(dev,
588 vbi_dma_q,
589 vbi_buf);
590 vbi_get_next_buf(vbi_dma_q, &vbi_buf);
591 if (vbi_buf == NULL)
592 vbioutp = NULL;
593 else
594 vbioutp = videobuf_to_vmalloc(
595 &vbi_buf->vb);
596
597 /* Video */
8b2f0795
DH		 598 if (buf != NULL)
599 buffer_filled(dev, dma_q, buf);
600 get_next_buf(dma_q, &buf);
62899a28 601 if (buf == NULL)
8b2f0795 602 outp = NULL;
62899a28 603 else
8b2f0795 604 outp = videobuf_to_vmalloc(&buf->vb);
78ca5005
DH		 605
606 /* As long as isoc traffic is arriving, keep
607 resetting the timer */
608 if (dev->vid_timeout_running)
609 mod_timer(&dev->vid_timeout,
610 jiffies + (HZ / 10));
611 if (dev->vbi_timeout_running)
612 mod_timer(&dev->vbi_timeout,
613 jiffies + (HZ / 10));
8b2f0795
DH		 614 }
615
616 if (buf != NULL) {
62899a28 617 if (fbyte & 0x40)
8b2f0795 618 buf->top_field = 1;
62899a28 619 else
8b2f0795 620 buf->top_field = 0;
8b2f0795
DH		 621 }
622
7f8eacd2
DH		 623 if (vbi_buf != NULL) {
624 if (fbyte & 0x40)
625 vbi_buf->top_field = 1;
626 else
627 vbi_buf->top_field = 0;
628 }
629
630 dev->vbi_read = 0;
631 vbi_dma_q->pos = 0;
8b2f0795
DH		 632 dma_q->pos = 0;
633 }
7f8eacd2
DH		 634
635 vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
636 if (dev->vbi_read < vbi_field_size) {
637 remain = vbi_field_size - dev->vbi_read;
638 if (len < remain)
639 lencopy = len;
640 else
641 lencopy = remain;
642
643 if (vbi_buf != NULL)
644 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
645 vbioutp, len);
646
647 len -= lencopy;
648 p += lencopy;
649 dev->vbi_read += lencopy;
650 }
651
652 if (dev->vbi_read >= vbi_field_size && buf != NULL)
8b2f0795 653 au0828_copy_video(dev, dma_q, buf, p, outp, len);
8b2f0795
DH		 654 }
655 return rc;
656}
657
658static int
659buffer_setup(struct videobuf_queue *vq, unsigned int *count,
660 unsigned int *size)
661{
662 struct au0828_fh *fh = vq->priv_data;
663 *size = (fh->dev->width * fh->dev->height * 16 + 7) >> 3;
664
665 if (0 == *count)
666 *count = AU0828_DEF_BUF;
667
668 if (*count < AU0828_MIN_BUF)
669 *count = AU0828_MIN_BUF;
670 return 0;
671}
672
673/* This is called *without* dev->slock held; please keep it that way */
674static void free_buffer(struct videobuf_queue *vq, struct au0828_buffer *buf)
675{
676 struct au0828_fh *fh = vq->priv_data;
677 struct au0828_dev *dev = fh->dev;
678 unsigned long flags = 0;
679 if (in_interrupt())
680 BUG();
681
682 /* We used to wait for the buffer to finish here, but this didn't work
683 because, as we were keeping the state as VIDEOBUF_QUEUED,
684 videobuf_queue_cancel marked it as finished for us.
685 (Also, it could wedge forever if the hardware was misconfigured.)
686
687 This should be safe; by the time we get here, the buffer isn't
688 queued anymore. If we ever start marking the buffers as
689 VIDEOBUF_ACTIVE, it won't be, though.
690 */
691 spin_lock_irqsave(&dev->slock, flags);
692 if (dev->isoc_ctl.buf == buf)
693 dev->isoc_ctl.buf = NULL;
694 spin_unlock_irqrestore(&dev->slock, flags);
695
696 videobuf_vmalloc_free(&buf->vb);
697 buf->vb.state = VIDEOBUF_NEEDS_INIT;
698}
699
700static int
701buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
702 enum v4l2_field field)
703{
704 struct au0828_fh *fh = vq->priv_data;
705 struct au0828_buffer *buf = container_of(vb, struct au0828_buffer, vb);
706 struct au0828_dev *dev = fh->dev;
707 int rc = 0, urb_init = 0;
708
709 buf->vb.size = (fh->dev->width * fh->dev->height * 16 + 7) >> 3;
710
711 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
712 return -EINVAL;
713
714 buf->vb.width = dev->width;
715 buf->vb.height = dev->height;
716 buf->vb.field = field;
717
718 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
719 rc = videobuf_iolock(vq, &buf->vb, NULL);
720 if (rc < 0) {
62899a28 721 printk(KERN_INFO "videobuf_iolock failed\n");
8b2f0795
DH		 722 goto fail;
723 }
724 }
725
726 if (!dev->isoc_ctl.num_bufs)
727 urb_init = 1;
728
729 if (urb_init) {
730 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
731 AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
732 au0828_isoc_copy);
733 if (rc < 0) {
62899a28 734 printk(KERN_INFO "au0828_init_isoc failed\n");
8b2f0795
DH		 735 goto fail;
736 }
737 }
738
739 buf->vb.state = VIDEOBUF_PREPARED;
740 return 0;
741
742fail:
743 free_buffer(vq, buf);
744 return rc;
745}
746
747static void
748buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
749{
750 struct au0828_buffer *buf = container_of(vb,
751 struct au0828_buffer,
752 vb);
753 struct au0828_fh *fh = vq->priv_data;
754 struct au0828_dev *dev = fh->dev;
755 struct au0828_dmaqueue *vidq = &dev->vidq;
756
757 buf->vb.state = VIDEOBUF_QUEUED;
758 list_add_tail(&buf->vb.queue, &vidq->active);
759}
760
761static void buffer_release(struct videobuf_queue *vq,
762 struct videobuf_buffer *vb)
763{
764 struct au0828_buffer *buf = container_of(vb,
765 struct au0828_buffer,
766 vb);
767
768 free_buffer(vq, buf);
769}
770
771static struct videobuf_queue_ops au0828_video_qops = {
772 .buf_setup = buffer_setup,
773 .buf_prepare = buffer_prepare,
774 .buf_queue = buffer_queue,
775 .buf_release = buffer_release,
776};
777
778/* ------------------------------------------------------------------
779 V4L2 interface
780 ------------------------------------------------------------------*/
781
782static int au0828_i2s_init(struct au0828_dev *dev)
783{
784 /* Enable i2s mode */
785 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
786 return 0;
787}
788
789/*
790 * Auvitek au0828 analog stream enable
791 * Please set interface0 to AS5 before enable the stream
792 */
a094ca46 793static int au0828_analog_stream_enable(struct au0828_dev *d)
8b2f0795
DH		 794{
795 dprintk(1, "au0828_analog_stream_enable called\n");
796 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
797 au0828_writereg(d, 0x106, 0x00);
798 /* set x position */
799 au0828_writereg(d, 0x110, 0x00);
800 au0828_writereg(d, 0x111, 0x00);
801 au0828_writereg(d, 0x114, 0xa0);
802 au0828_writereg(d, 0x115, 0x05);
803 /* set y position */
7f8eacd2 804 au0828_writereg(d, 0x112, 0x00);
8b2f0795
DH		 805 au0828_writereg(d, 0x113, 0x00);
806 au0828_writereg(d, 0x116, 0xf2);
807 au0828_writereg(d, 0x117, 0x00);
808 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
809
810 return 0;
811}
812
813int au0828_analog_stream_disable(struct au0828_dev *d)
814{
815 dprintk(1, "au0828_analog_stream_disable called\n");
816 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
817 return 0;
818}
819
a094ca46 820static void au0828_analog_stream_reset(struct au0828_dev *dev)
8b2f0795
DH		 821{
822 dprintk(1, "au0828_analog_stream_reset called\n");
823 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
824 mdelay(30);
825 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
826}
827
828/*
829 * Some operations needs to stop current streaming
830 */
831static int au0828_stream_interrupt(struct au0828_dev *dev)
832{
833 int ret = 0;
834
835 dev->stream_state = STREAM_INTERRUPT;
62899a28 836 if (dev->dev_state == DEV_DISCONNECTED)
8b2f0795 837 return -ENODEV;
62899a28 838 else if (ret) {
8b2f0795 839 dev->dev_state = DEV_MISCONFIGURED;
62899a28 840 dprintk(1, "%s device is misconfigured!\n", __func__);
8b2f0795
DH		 841 return ret;
842 }
843 return 0;
844}
845
846/*
847 * au0828_release_resources
848 * unregister v4l2 devices
849 */
850void au0828_analog_unregister(struct au0828_dev *dev)
851{
852 dprintk(1, "au0828_release_resources called\n");
853 mutex_lock(&au0828_sysfs_lock);
854
63b0d5ad 855 if (dev->vdev)
5a5a4e16
DH		 856 video_unregister_device(dev->vdev);
857 if (dev->vbi_dev)
858 video_unregister_device(dev->vbi_dev);
8b2f0795
DH		 859
860 mutex_unlock(&au0828_sysfs_lock);
861}
862
863
864/* Usage lock check functions */
7f8eacd2 865static int res_get(struct au0828_fh *fh, unsigned int bit)
8b2f0795 866{
7f8eacd2 867 struct au0828_dev *dev = fh->dev;
8b2f0795 868
7f8eacd2
DH		 869 if (fh->resources & bit)
870 /* have it already allocated */
871 return 1;
8b2f0795 872
7f8eacd2 873 /* is it free? */
7f8eacd2
DH		 874 if (dev->resources & bit) {
875 /* no, someone else uses it */
7f8eacd2
DH		 876 return 0;
877 }
878 /* it's free, grab it */
879 fh->resources |= bit;
880 dev->resources |= bit;
881 dprintk(1, "res: get %d\n", bit);
549ee4df 882
7f8eacd2
DH		 883 return 1;
884}
8b2f0795 885
7f8eacd2
DH		 886static int res_check(struct au0828_fh *fh, unsigned int bit)
887{
888 return fh->resources & bit;
8b2f0795
DH		 889}
890
7f8eacd2 891static int res_locked(struct au0828_dev *dev, unsigned int bit)
8b2f0795 892{
7f8eacd2 893 return dev->resources & bit;
8b2f0795
DH		 894}
895
7f8eacd2 896static void res_free(struct au0828_fh *fh, unsigned int bits)
8b2f0795 897{
7f8eacd2
DH		 898 struct au0828_dev *dev = fh->dev;
899
900 BUG_ON((fh->resources & bits) != bits);
8b2f0795 901
7f8eacd2
DH		 902 fh->resources &= ~bits;
903 dev->resources &= ~bits;
904 dprintk(1, "res: put %d\n", bits);
7f8eacd2
DH		 905}
906
907static int get_ressource(struct au0828_fh *fh)
908{
909 switch (fh->type) {
910 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
911 return AU0828_RESOURCE_VIDEO;
912 case V4L2_BUF_TYPE_VBI_CAPTURE:
913 return AU0828_RESOURCE_VBI;
914 default:
915 BUG();
916 return 0;
917 }
8b2f0795
DH		 918}
919
6e04b7b9
DH		 920/* This function ensures that video frames continue to be delivered even if
921 the ITU-656 input isn't receiving any data (thereby preventing applications
922 such as tvtime from hanging) */
a094ca46 923static void au0828_vid_buffer_timeout(unsigned long data)
6e04b7b9
DH		 924{
925 struct au0828_dev *dev = (struct au0828_dev *) data;
926 struct au0828_dmaqueue *dma_q = &dev->vidq;
927 struct au0828_buffer *buf;
928 unsigned char *vid_data;
78ca5005 929 unsigned long flags = 0;
6e04b7b9 930
78ca5005 931 spin_lock_irqsave(&dev->slock, flags);
6e04b7b9
DH		 932
933 buf = dev->isoc_ctl.buf;
934 if (buf != NULL) {
935 vid_data = videobuf_to_vmalloc(&buf->vb);
936 memset(vid_data, 0x00, buf->vb.size); /* Blank green frame */
937 buffer_filled(dev, dma_q, buf);
6e04b7b9 938 }
78ca5005
DH		 939 get_next_buf(dma_q, &buf);
940
941 if (dev->vid_timeout_running == 1)
942 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
6e04b7b9 943
78ca5005 944 spin_unlock_irqrestore(&dev->slock, flags);
6e04b7b9
DH		 945}
946
a094ca46 947static void au0828_vbi_buffer_timeout(unsigned long data)
6e04b7b9
DH		 948{
949 struct au0828_dev *dev = (struct au0828_dev *) data;
950 struct au0828_dmaqueue *dma_q = &dev->vbiq;
951 struct au0828_buffer *buf;
952 unsigned char *vbi_data;
78ca5005 953 unsigned long flags = 0;
6e04b7b9 954
78ca5005 955 spin_lock_irqsave(&dev->slock, flags);
6e04b7b9
DH		 956
957 buf = dev->isoc_ctl.vbi_buf;
958 if (buf != NULL) {
959 vbi_data = videobuf_to_vmalloc(&buf->vb);
960 memset(vbi_data, 0x00, buf->vb.size);
961 vbi_buffer_filled(dev, dma_q, buf);
6e04b7b9 962 }
78ca5005 963 vbi_get_next_buf(dma_q, &buf);
6e04b7b9 964
78ca5005
DH		 965 if (dev->vbi_timeout_running == 1)
966 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
967 spin_unlock_irqrestore(&dev->slock, flags);
6e04b7b9
DH		 968}
969
970
8b2f0795
DH		 971static int au0828_v4l2_open(struct file *filp)
972{
8b2f0795 973 int ret = 0;
7f8eacd2 974 struct video_device *vdev = video_devdata(filp);
63b0d5ad 975 struct au0828_dev *dev = video_drvdata(filp);
8b2f0795 976 struct au0828_fh *fh;
7f8eacd2 977 int type;
63b0d5ad 978
7f8eacd2
DH		 979 switch (vdev->vfl_type) {
980 case VFL_TYPE_GRABBER:
981 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
982 break;
983 case VFL_TYPE_VBI:
63b0d5ad 984 type = V4L2_BUF_TYPE_VBI_CAPTURE;
7f8eacd2
DH		 985 break;
986 default:
987 return -EINVAL;
988 }
8b2f0795
DH		 989
990 fh = kzalloc(sizeof(struct au0828_fh), GFP_KERNEL);
62899a28 991 if (NULL == fh) {
8b2f0795
DH		 992 dprintk(1, "Failed allocate au0828_fh struct!\n");
993 return -ENOMEM;
994 }
995
996 fh->type = type;
997 fh->dev = dev;
83b09422 998 v4l2_fh_init(&fh->fh, vdev);
8b2f0795
DH		 999 filp->private_data = fh;
1000
62899a28 1001 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
8b2f0795
DH		 1002 /* set au0828 interface0 to AS5 here again */
1003 ret = usb_set_interface(dev->usbdev, 0, 5);
62899a28
DH		 1004 if (ret < 0) {
1005 printk(KERN_INFO "Au0828 can't set alternate to 5!\n");
8b2f0795
DH		 1006 return -EBUSY;
1007 }
8b2f0795
DH		 1008
1009 au0828_analog_stream_enable(dev);
1010 au0828_analog_stream_reset(dev);
1011
1012 /* If we were doing ac97 instead of i2s, it would go here...*/
1013 au0828_i2s_init(dev);
1014
1015 dev->stream_state = STREAM_OFF;
1016 dev->dev_state |= DEV_INITIALIZED;
1017 }
1018
1019 dev->users++;
1020
1021 videobuf_queue_vmalloc_init(&fh->vb_vidq, &au0828_video_qops,
7f8eacd2
DH		 1022 NULL, &dev->slock,
1023 V4L2_BUF_TYPE_VIDEO_CAPTURE,
8b2f0795 1024 V4L2_FIELD_INTERLACED,
549ee4df
DH		 1025 sizeof(struct au0828_buffer), fh,
1026 &dev->lock);
8b2f0795 1027
7f8eacd2 1028 /* VBI Setup */
7f8eacd2
DH		 1029 videobuf_queue_vmalloc_init(&fh->vb_vbiq, &au0828_vbi_qops,
1030 NULL, &dev->slock,
1031 V4L2_BUF_TYPE_VBI_CAPTURE,
1032 V4L2_FIELD_SEQ_TB,
549ee4df
DH		 1033 sizeof(struct au0828_buffer), fh,
1034 &dev->lock);
83b09422 1035 v4l2_fh_add(&fh->fh);
8b2f0795
DH		 1036 return ret;
1037}
1038
1039static int au0828_v4l2_close(struct file *filp)
1040{
1041 int ret;
1042 struct au0828_fh *fh = filp->private_data;
1043 struct au0828_dev *dev = fh->dev;
1044
83b09422
HV		 1045 v4l2_fh_del(&fh->fh);
1046 v4l2_fh_exit(&fh->fh);
7f8eacd2 1047 if (res_check(fh, AU0828_RESOURCE_VIDEO)) {
78ca5005
DH		 1048 /* Cancel timeout thread in case they didn't call streamoff */
1049 dev->vid_timeout_running = 0;
1050 del_timer_sync(&dev->vid_timeout);
1051
8b2f0795 1052 videobuf_stop(&fh->vb_vidq);
7f8eacd2
DH		 1053 res_free(fh, AU0828_RESOURCE_VIDEO);
1054 }
8b2f0795 1055
7f8eacd2 1056 if (res_check(fh, AU0828_RESOURCE_VBI)) {
78ca5005
DH		 1057 /* Cancel timeout thread in case they didn't call streamoff */
1058 dev->vbi_timeout_running = 0;
1059 del_timer_sync(&dev->vbi_timeout);
1060
7f8eacd2
DH		 1061 videobuf_stop(&fh->vb_vbiq);
1062 res_free(fh, AU0828_RESOURCE_VBI);
1063 }
1064
823beb7e 1065 if (dev->users == 1 && video_is_registered(video_devdata(filp))) {
8b2f0795
DH		 1066 au0828_analog_stream_disable(dev);
1067
1068 au0828_uninit_isoc(dev);
1069
e4b8bc52 1070 /* Save some power by putting tuner to sleep */
622b828a 1071 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0);
e4b8bc52 1072
8b2f0795
DH		 1073 /* When close the device, set the usb intf0 into alt0 to free
1074 USB bandwidth */
1075 ret = usb_set_interface(dev->usbdev, 0, 0);
62899a28
DH		 1076 if (ret < 0)
1077 printk(KERN_INFO "Au0828 can't set alternate to 0!\n");
8b2f0795
DH		 1078 }
1079
7f8eacd2
DH		 1080 videobuf_mmap_free(&fh->vb_vidq);
1081 videobuf_mmap_free(&fh->vb_vbiq);
8b2f0795
DH		 1082 kfree(fh);
1083 dev->users--;
1084 wake_up_interruptible_nr(&dev->open, 1);
8b2f0795
DH		 1085 return 0;
1086}
1087
1088static ssize_t au0828_v4l2_read(struct file *filp, char __user *buf,
1089 size_t count, loff_t *pos)
1090{
1091 struct au0828_fh *fh = filp->private_data;
1092 struct au0828_dev *dev = fh->dev;
1093 int rc;
1094
1095 rc = check_dev(dev);
1096 if (rc < 0)
1097 return rc;
1098
62899a28 1099 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
7f8eacd2
DH		 1100 if (res_locked(dev, AU0828_RESOURCE_VIDEO))
1101 return -EBUSY;
8b2f0795
DH		 1102
1103 return videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0,
1104 filp->f_flags & O_NONBLOCK);
1105 }
7f8eacd2
DH		 1106
1107 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
1108 if (!res_get(fh, AU0828_RESOURCE_VBI))
1109 return -EBUSY;
1110
bf797165
DH		 1111 if (dev->vbi_timeout_running == 0) {
1112 /* Handle case where caller tries to read without
1113 calling streamon first */
1114 dev->vbi_timeout_running = 1;
1115 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1116 }
1117
7f8eacd2
DH		 1118 return videobuf_read_stream(&fh->vb_vbiq, buf, count, pos, 0,
1119 filp->f_flags & O_NONBLOCK);
1120 }
1121
8b2f0795
DH		 1122 return 0;
1123}
1124
1125static unsigned int au0828_v4l2_poll(struct file *filp, poll_table *wait)
1126{
1127 struct au0828_fh *fh = filp->private_data;
1128 struct au0828_dev *dev = fh->dev;
83b09422
HV		 1129 unsigned long req_events = poll_requested_events(wait);
1130 unsigned int res;
8b2f0795 1131
83b09422
HV		 1132 if (check_dev(dev) < 0)
1133 return POLLERR;
1134
1135 res = v4l2_ctrl_poll(filp, wait);
1136 if (!(req_events & (POLLIN | POLLRDNORM)))
1137 return res;
8b2f0795 1138
7f8eacd2
DH		 1139 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1140 if (!res_get(fh, AU0828_RESOURCE_VIDEO))
1141 return POLLERR;
83b09422
HV		 1142 return res | videobuf_poll_stream(filp, &fh->vb_vidq, wait);
1143 }
1144 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
7f8eacd2
DH		 1145 if (!res_get(fh, AU0828_RESOURCE_VBI))
1146 return POLLERR;
83b09422 1147 return res | videobuf_poll_stream(filp, &fh->vb_vbiq, wait);
7f8eacd2 1148 }
83b09422 1149 return POLLERR;
8b2f0795
DH		 1150}
1151
1152static int au0828_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
1153{
1154 struct au0828_fh *fh = filp->private_data;
1155 struct au0828_dev *dev = fh->dev;
1156 int rc;
1157
1158 rc = check_dev(dev);
1159 if (rc < 0)
1160 return rc;
1161
7f8eacd2
DH		 1162 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1163 rc = videobuf_mmap_mapper(&fh->vb_vidq, vma);
1164 else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
1165 rc = videobuf_mmap_mapper(&fh->vb_vbiq, vma);
8b2f0795 1166
8b2f0795
DH		 1167 return rc;
1168}
1169
1170static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
1171 struct v4l2_format *format)
1172{
1173 int ret;
1174 int width = format->fmt.pix.width;
1175 int height = format->fmt.pix.height;
8b2f0795 1176
8b2f0795
DH		 1177 /* If they are demanding a format other than the one we support,
1178 bail out (tvtime asks for UYVY and then retries with YUYV) */
62899a28 1179 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)
8b2f0795 1180 return -EINVAL;
8b2f0795
DH		 1181
1182 /* format->fmt.pix.width only support 720 and height 480 */
62899a28 1183 if (width != 720)
8b2f0795 1184 width = 720;
62899a28 1185 if (height != 480)
8b2f0795
DH		 1186 height = 480;
1187
1188 format->fmt.pix.width = width;
1189 format->fmt.pix.height = height;
1190 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1191 format->fmt.pix.bytesperline = width * 2;
1192 format->fmt.pix.sizeimage = width * height * 2;
1193 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1194 format->fmt.pix.field = V4L2_FIELD_INTERLACED;
8d86e4e8 1195 format->fmt.pix.priv = 0;
8b2f0795 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;
8d86e4e8 1282 f->fmt.pix.priv = 0;
8b2f0795
DH		 1283 return 0;
1284}
1285
1286static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1287 struct v4l2_format *f)
1288{
1289 struct au0828_fh *fh = priv;
1290 struct au0828_dev *dev = fh->dev;
1291
1292 return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
1293}
1294
1295static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1296 struct v4l2_format *f)
1297{
1298 struct au0828_fh *fh = priv;
1299 struct au0828_dev *dev = fh->dev;
1300 int rc;
1301
7f8eacd2
DH		 1302 rc = check_dev(dev);
1303 if (rc < 0)
1304 return rc;
1305
8b2f0795 1306 if (videobuf_queue_is_busy(&fh->vb_vidq)) {
62899a28 1307 printk(KERN_INFO "%s queue busy\n", __func__);
8b2f0795
DH		 1308 rc = -EBUSY;
1309 goto out;
1310 }
1311
7f8eacd2 1312 rc = au0828_set_format(dev, VIDIOC_S_FMT, f);
8b2f0795
DH		 1313out:
1314 return rc;
1315}
1316
314527ac 1317static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
8b2f0795
DH		 1318{
1319 struct au0828_fh *fh = priv;
1320 struct au0828_dev *dev = fh->dev;
1321
fa09cb9a 1322 i2c_gate_ctrl(dev, 1);
e58071f0 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 1330
fa09cb9a 1331 i2c_gate_ctrl(dev, 0);
33b6b89b 1332 dev->std = norm;
e58071f0 1333
8b2f0795
DH		 1334 return 0;
1335}
1336
33b6b89b
HV		 1337static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
1338{
1339 struct au0828_fh *fh = priv;
1340 struct au0828_dev *dev = fh->dev;
1341
1342 *norm = dev->std;
1343 return 0;
1344}
1345
8b2f0795
DH		 1346static int vidioc_enum_input(struct file *file, void *priv,
1347 struct v4l2_input *input)
1348{
1349 struct au0828_fh *fh = priv;
1350 struct au0828_dev *dev = fh->dev;
1351 unsigned int tmp;
1352
1353 static const char *inames[] = {
3d62287e 1354 [AU0828_VMUX_UNDEFINED] = "Undefined",
8b2f0795
DH		 1355 [AU0828_VMUX_COMPOSITE] = "Composite",
1356 [AU0828_VMUX_SVIDEO] = "S-Video",
1357 [AU0828_VMUX_CABLE] = "Cable TV",
1358 [AU0828_VMUX_TELEVISION] = "Television",
1359 [AU0828_VMUX_DVB] = "DVB",
1360 [AU0828_VMUX_DEBUG] = "tv debug"
1361 };
1362
1363 tmp = input->index;
1364
f5e20c34 1365 if (tmp >= AU0828_MAX_INPUT)
8b2f0795 1366 return -EINVAL;
62899a28 1367 if (AUVI_INPUT(tmp).type == 0)
8b2f0795
DH		 1368 return -EINVAL;
1369
8b2f0795 1370 input->index = tmp;
f1add5b5 1371 strcpy(input->name, inames[AUVI_INPUT(tmp).type]);
62899a28 1372 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
a2cf96f9 1373 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) {
8b2f0795 1374 input->type |= V4L2_INPUT_TYPE_TUNER;
a2cf96f9
HV		 1375 input->audioset = 1;
1376 } else {
8b2f0795 1377 input->type |= V4L2_INPUT_TYPE_CAMERA;
a2cf96f9
HV		 1378 input->audioset = 2;
1379 }
8b2f0795
DH		 1380
1381 input->std = dev->vdev->tvnorms;
1382
1383 return 0;
1384}
1385
1386static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1387{
1388 struct au0828_fh *fh = priv;
1389 struct au0828_dev *dev = fh->dev;
1390 *i = dev->ctrl_input;
1391 return 0;
1392}
1393
1394static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
1395{
1396 struct au0828_fh *fh = priv;
1397 struct au0828_dev *dev = fh->dev;
1398 int i;
8b2f0795 1399
62899a28 1400 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
8b2f0795 1401 index);
62899a28 1402 if (index >= AU0828_MAX_INPUT)
8b2f0795 1403 return -EINVAL;
62899a28 1404 if (AUVI_INPUT(index).type == 0)
8b2f0795
DH		 1405 return -EINVAL;
1406 dev->ctrl_input = index;
1407
62899a28 1408 switch (AUVI_INPUT(index).type) {
8b2f0795 1409 case AU0828_VMUX_SVIDEO:
8b2f0795 1410 dev->input_type = AU0828_VMUX_SVIDEO;
a2cf96f9 1411 dev->ctrl_ainput = 1;
8b2f0795 1412 break;
8b2f0795 1413 case AU0828_VMUX_COMPOSITE:
8b2f0795 1414 dev->input_type = AU0828_VMUX_COMPOSITE;
a2cf96f9 1415 dev->ctrl_ainput = 1;
8b2f0795 1416 break;
8b2f0795 1417 case AU0828_VMUX_TELEVISION:
8b2f0795 1418 dev->input_type = AU0828_VMUX_TELEVISION;
a2cf96f9 1419 dev->ctrl_ainput = 0;
8b2f0795 1420 break;
8b2f0795 1421 default:
a1094c4c
DH		 1422 dprintk(1, "VIDIOC_S_INPUT unknown input type set [%d]\n",
1423 AUVI_INPUT(index).type);
1424 break;
8b2f0795
DH		 1425 }
1426
5325b427
HV		 1427 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
1428 AUVI_INPUT(index).vmux, 0, 0);
8b2f0795
DH		 1429
1430 for (i = 0; i < AU0828_MAX_INPUT; i++) {
1431 int enable = 0;
62899a28 1432 if (AUVI_INPUT(i).audio_setup == NULL)
8b2f0795 1433 continue;
8b2f0795
DH		 1434
1435 if (i == index)
1436 enable = 1;
1437 else
1438 enable = 0;
1439 if (enable) {
f1add5b5 1440 (AUVI_INPUT(i).audio_setup)(dev, enable);
8b2f0795
DH		 1441 } else {
1442 /* Make sure we leave it turned on if some
1443 other input is routed to this callback */
f1add5b5
DH		 1444 if ((AUVI_INPUT(i).audio_setup) !=
1445 ((AUVI_INPUT(index).audio_setup))) {
1446 (AUVI_INPUT(i).audio_setup)(dev, enable);
8b2f0795
DH		 1447 }
1448 }
1449 }
1450
5325b427
HV		 1451 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
1452 AUVI_INPUT(index).amux, 0, 0);
8b2f0795
DH		 1453 return 0;
1454}
1455
a2cf96f9
HV		 1456static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a)
1457{
1458 if (a->index > 1)
1459 return -EINVAL;
1460
1461 if (a->index == 0)
1462 strcpy(a->name, "Television");
1463 else
1464 strcpy(a->name, "Line in");
1465
1466 a->capability = V4L2_AUDCAP_STEREO;
1467 return 0;
1468}
1469
8b2f0795
DH		 1470static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1471{
1472 struct au0828_fh *fh = priv;
1473 struct au0828_dev *dev = fh->dev;
8b2f0795 1474
a2cf96f9
HV		 1475 a->index = dev->ctrl_ainput;
1476 if (a->index == 0)
8b2f0795
DH		 1477 strcpy(a->name, "Television");
1478 else
1479 strcpy(a->name, "Line in");
1480
1481 a->capability = V4L2_AUDCAP_STEREO;
8b2f0795
DH		 1482 return 0;
1483}
1484
0e8025b9 1485static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)
8b2f0795
DH		 1486{
1487 struct au0828_fh *fh = priv;
1488 struct au0828_dev *dev = fh->dev;
a2cf96f9 1489
62899a28 1490 if (a->index != dev->ctrl_ainput)
8b2f0795
DH		 1491 return -EINVAL;
1492 return 0;
1493}
1494
8b2f0795
DH		 1495static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1496{
1497 struct au0828_fh *fh = priv;
1498 struct au0828_dev *dev = fh->dev;
1499
62899a28 1500 if (t->index != 0)
8b2f0795
DH		 1501 return -EINVAL;
1502
8b2f0795 1503 strcpy(t->name, "Auvitek tuner");
2689d3dc 1504 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
8b2f0795
DH		 1505 return 0;
1506}
1507
1508static int vidioc_s_tuner(struct file *file, void *priv,
2f73c7c5 1509 const struct v4l2_tuner *t)
8b2f0795
DH		 1510{
1511 struct au0828_fh *fh = priv;
1512 struct au0828_dev *dev = fh->dev;
1513
62899a28 1514 if (t->index != 0)
8b2f0795
DH		 1515 return -EINVAL;
1516
fa09cb9a 1517 i2c_gate_ctrl(dev, 1);
e58071f0 1518
2689d3dc 1519 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
e58071f0 1520
fa09cb9a 1521 i2c_gate_ctrl(dev, 0);
e58071f0 1522
8b2f0795
DH		 1523 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
1524 t->afc);
e58071f0 1525
8b2f0795
DH		 1526 return 0;
1527
1528}
1529
1530static int vidioc_g_frequency(struct file *file, void *priv,
1531 struct v4l2_frequency *freq)
1532{
1533 struct au0828_fh *fh = priv;
1534 struct au0828_dev *dev = fh->dev;
c888923d 1535
e1cf6587
HV		 1536 if (freq->tuner != 0)
1537 return -EINVAL;
8b2f0795
DH		 1538 freq->frequency = dev->ctrl_freq;
1539 return 0;
1540}
1541
1542static int vidioc_s_frequency(struct file *file, void *priv,
b530a447 1543 const struct v4l2_frequency *freq)
8b2f0795
DH		 1544{
1545 struct au0828_fh *fh = priv;
1546 struct au0828_dev *dev = fh->dev;
e1cf6587 1547 struct v4l2_frequency new_freq = *freq;
8b2f0795 1548
62899a28 1549 if (freq->tuner != 0)
8b2f0795 1550 return -EINVAL;
8b2f0795 1551
fa09cb9a 1552 i2c_gate_ctrl(dev, 1);
4a03dafc 1553
c98bc032 1554 if (dev->std_set_in_tuner_core == 0) {
38823b29
HV		 1555 /* If we've never sent the standard in tuner core, do so now.
1556 We don't do this at device probe because we don't want to
1557 incur the cost of a firmware load */
1558 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std,
1559 dev->vdev->tvnorms);
1560 dev->std_set_in_tuner_core = 1;
c98bc032
DH		 1561 }
1562
2689d3dc 1563 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
e1cf6587
HV		 1564 /* Get the actual set (and possibly clamped) frequency */
1565 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
1566 dev->ctrl_freq = new_freq.frequency;
8b2f0795 1567
fa09cb9a 1568 i2c_gate_ctrl(dev, 0);
4a03dafc 1569
8b2f0795
DH		 1570 au0828_analog_stream_reset(dev);
1571
1572 return 0;
1573}
1574
7f8eacd2
DH		 1575
1576/* RAW VBI ioctls */
1577
1578static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1579 struct v4l2_format *format)
1580{
1581 struct au0828_fh *fh = priv;
1582 struct au0828_dev *dev = fh->dev;
1583
1584 format->fmt.vbi.samples_per_line = dev->vbi_width;
1585 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1586 format->fmt.vbi.offset = 0;
1587 format->fmt.vbi.flags = 0;
1588 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
1589
1590 format->fmt.vbi.count[0] = dev->vbi_height;
1591 format->fmt.vbi.count[1] = dev->vbi_height;
1592 format->fmt.vbi.start[0] = 21;
1593 format->fmt.vbi.start[1] = 284;
8d86e4e8 1594 memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
7f8eacd2
DH		 1595
1596 return 0;
1597}
1598
8b2f0795
DH		 1599static int vidioc_g_chip_ident(struct file *file, void *priv,
1600 struct v4l2_dbg_chip_ident *chip)
1601{
1602 struct au0828_fh *fh = priv;
1603 struct au0828_dev *dev = fh->dev;
1604 chip->ident = V4L2_IDENT_NONE;
1605 chip->revision = 0;
1606
d9109bef
DH		 1607 if (v4l2_chip_match_host(&chip->match)) {
1608 chip->ident = V4L2_IDENT_AU0828;
1609 return 0;
1610 }
1611
2689d3dc 1612 v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_chip_ident, chip);
d9109bef
DH		 1613 if (chip->ident == V4L2_IDENT_NONE)
1614 return -EINVAL;
1615
8b2f0795
DH		 1616 return 0;
1617}
1618
1619static int vidioc_cropcap(struct file *file, void *priv,
1620 struct v4l2_cropcap *cc)
1621{
1622 struct au0828_fh *fh = priv;
1623 struct au0828_dev *dev = fh->dev;
1624
62899a28 1625 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
8b2f0795
DH		 1626 return -EINVAL;
1627
1628 cc->bounds.left = 0;
1629 cc->bounds.top = 0;
1630 cc->bounds.width = dev->width;
1631 cc->bounds.height = dev->height;
1632
1633 cc->defrect = cc->bounds;
1634
1635 cc->pixelaspect.numerator = 54;
1636 cc->pixelaspect.denominator = 59;
1637
1638 return 0;
1639}
1640
1641static int vidioc_streamon(struct file *file, void *priv,
1642 enum v4l2_buf_type type)
1643{
7f8eacd2
DH		 1644 struct au0828_fh *fh = priv;
1645 struct au0828_dev *dev = fh->dev;
1646 int rc = -EINVAL;
8b2f0795
DH		 1647
1648 rc = check_dev(dev);
1649 if (rc < 0)
1650 return rc;
1651
7f8eacd2
DH		 1652 if (unlikely(type != fh->type))
1653 return -EINVAL;
1654
1655 dprintk(1, "vidioc_streamon fh=%p t=%d fh->res=%d dev->res=%d\n",
1656 fh, type, fh->resources, dev->resources);
1657
1658 if (unlikely(!res_get(fh, get_ressource(fh))))
1659 return -EBUSY;
1660
8b2f0795
DH		 1661 if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1662 au0828_analog_stream_enable(dev);
2689d3dc 1663 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 1);
8b2f0795
DH		 1664 }
1665
78ca5005 1666 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
8b2f0795 1667 rc = videobuf_streamon(&fh->vb_vidq);
78ca5005
DH		 1668 dev->vid_timeout_running = 1;
1669 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
1670 } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
7f8eacd2 1671 rc = videobuf_streamon(&fh->vb_vbiq);
78ca5005
DH		 1672 dev->vbi_timeout_running = 1;
1673 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1674 }
8b2f0795
DH		 1675
1676 return rc;
1677}
1678
1679static int vidioc_streamoff(struct file *file, void *priv,
1680 enum v4l2_buf_type type)
1681{
7f8eacd2
DH		 1682 struct au0828_fh *fh = priv;
1683 struct au0828_dev *dev = fh->dev;
1684 int rc;
1685 int i;
8b2f0795
DH		 1686
1687 rc = check_dev(dev);
1688 if (rc < 0)
1689 return rc;
1690
7f8eacd2
DH		 1691 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1692 fh->type != V4L2_BUF_TYPE_VBI_CAPTURE)
8b2f0795
DH		 1693 return -EINVAL;
1694 if (type != fh->type)
1695 return -EINVAL;
1696
7f8eacd2
DH		 1697 dprintk(1, "vidioc_streamoff fh=%p t=%d fh->res=%d dev->res=%d\n",
1698 fh, type, fh->resources, dev->resources);
1699
1700 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
78ca5005
DH		 1701 dev->vid_timeout_running = 0;
1702 del_timer_sync(&dev->vid_timeout);
1703
2689d3dc 1704 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
7f8eacd2
DH		 1705 rc = au0828_stream_interrupt(dev);
1706 if (rc != 0)
1707 return rc;
8b2f0795 1708
7f8eacd2
DH		 1709 for (i = 0; i < AU0828_MAX_INPUT; i++) {
1710 if (AUVI_INPUT(i).audio_setup == NULL)
1711 continue;
1712 (AUVI_INPUT(i).audio_setup)(dev, 0);
1713 }
8b2f0795 1714
a595c1ce
DH		 1715 if (res_check(fh, AU0828_RESOURCE_VIDEO)) {
1716 videobuf_streamoff(&fh->vb_vidq);
1717 res_free(fh, AU0828_RESOURCE_VIDEO);
1718 }
7f8eacd2 1719 } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
78ca5005
DH		 1720 dev->vbi_timeout_running = 0;
1721 del_timer_sync(&dev->vbi_timeout);
1722
a595c1ce
DH		 1723 if (res_check(fh, AU0828_RESOURCE_VBI)) {
1724 videobuf_streamoff(&fh->vb_vbiq);
1725 res_free(fh, AU0828_RESOURCE_VBI);
1726 }
7f8eacd2 1727 }
8b2f0795
DH		 1728
1729 return 0;
1730}
1731
80c6e358 1732#ifdef CONFIG_VIDEO_ADV_DEBUG
8b2f0795
DH		 1733static int vidioc_g_register(struct file *file, void *priv,
1734 struct v4l2_dbg_register *reg)
1735{
1736 struct au0828_fh *fh = priv;
1737 struct au0828_dev *dev = fh->dev;
1738
1739 switch (reg->match.type) {
1740 case V4L2_CHIP_MATCH_I2C_DRIVER:
2689d3dc 1741 v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_register, reg);
8b2f0795
DH		 1742 return 0;
1743 default:
364d2db2
DH		 1744 if (!v4l2_chip_match_host(&reg->match))
1745 return -EINVAL;
8b2f0795 1746 }
364d2db2
DH		 1747
1748 reg->val = au0828_read(dev, reg->reg);
1749 return 0;
8b2f0795
DH		 1750}
1751
1752static int vidioc_s_register(struct file *file, void *priv,
977ba3b1 1753 const struct v4l2_dbg_register *reg)
8b2f0795
DH		 1754{
1755 struct au0828_fh *fh = priv;
1756 struct au0828_dev *dev = fh->dev;
1757
1758 switch (reg->match.type) {
1759 case V4L2_CHIP_MATCH_I2C_DRIVER:
2689d3dc 1760 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_register, reg);
8b2f0795
DH		 1761 return 0;
1762 default:
364d2db2
DH		 1763 if (!v4l2_chip_match_host(&reg->match))
1764 return -EINVAL;
8b2f0795 1765 }
364d2db2 1766 return au0828_writereg(dev, reg->reg, reg->val);
8b2f0795 1767}
80c6e358 1768#endif
8b2f0795 1769
83b09422
HV		 1770static int vidioc_log_status(struct file *file, void *fh)
1771{
1772 struct video_device *vdev = video_devdata(file);
1773
1774 v4l2_ctrl_log_status(file, fh);
1775 v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status);
1776 return 0;
1777}
1778
8b2f0795
DH		 1779static int vidioc_reqbufs(struct file *file, void *priv,
1780 struct v4l2_requestbuffers *rb)
1781{
1782 struct au0828_fh *fh = priv;
1783 struct au0828_dev *dev = fh->dev;
1784 int rc;
1785
1786 rc = check_dev(dev);
1787 if (rc < 0)
1788 return rc;
1789
54ebb8b8
DH		 1790 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1791 rc = videobuf_reqbufs(&fh->vb_vidq, rb);
1792 else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
1793 rc = videobuf_reqbufs(&fh->vb_vbiq, rb);
1794
1795 return rc;
8b2f0795
DH		 1796}
1797
1798static int vidioc_querybuf(struct file *file, void *priv,
1799 struct v4l2_buffer *b)
1800{
1801 struct au0828_fh *fh = priv;
1802 struct au0828_dev *dev = fh->dev;
1803 int rc;
1804
1805 rc = check_dev(dev);
1806 if (rc < 0)
1807 return rc;
1808
54ebb8b8
DH		 1809 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1810 rc = videobuf_querybuf(&fh->vb_vidq, b);
1811 else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
1812 rc = videobuf_querybuf(&fh->vb_vbiq, b);
1813
1814 return rc;
8b2f0795
DH		 1815}
1816
1817static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
1818{
1819 struct au0828_fh *fh = priv;
1820 struct au0828_dev *dev = fh->dev;
1821 int rc;
1822
1823 rc = check_dev(dev);
1824 if (rc < 0)
1825 return rc;
1826
54ebb8b8
DH		 1827 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1828 rc = videobuf_qbuf(&fh->vb_vidq, b);
1829 else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
1830 rc = videobuf_qbuf(&fh->vb_vbiq, b);
1831
1832 return rc;
8b2f0795
DH		 1833}
1834
1835static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
1836{
1837 struct au0828_fh *fh = priv;
1838 struct au0828_dev *dev = fh->dev;
1839 int rc;
1840
1841 rc = check_dev(dev);
1842 if (rc < 0)
1843 return rc;
1844
1845 /* Workaround for a bug in the au0828 hardware design that sometimes
1846 results in the colorspace being inverted */
1847 if (dev->greenscreen_detected == 1) {
1848 dprintk(1, "Detected green frame. Resetting stream...\n");
1849 au0828_analog_stream_reset(dev);
1850 dev->greenscreen_detected = 0;
1851 }
1852
54ebb8b8
DH		 1853 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1854 rc = videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK);
1855 else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
1856 rc = videobuf_dqbuf(&fh->vb_vbiq, b, file->f_flags & O_NONBLOCK);
1857
1858 return rc;
8b2f0795
DH		 1859}
1860
8b2f0795
DH		 1861static struct v4l2_file_operations au0828_v4l_fops = {
1862 .owner = THIS_MODULE,
1863 .open = au0828_v4l2_open,
1864 .release = au0828_v4l2_close,
1865 .read = au0828_v4l2_read,
1866 .poll = au0828_v4l2_poll,
1867 .mmap = au0828_v4l2_mmap,
549ee4df 1868 .unlocked_ioctl = video_ioctl2,
8b2f0795
DH		 1869};
1870
1871static const struct v4l2_ioctl_ops video_ioctl_ops = {
1872 .vidioc_querycap = vidioc_querycap,
1873 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1874 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1875 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1876 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
5a5a4e16 1877 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
8d86e4e8 1878 .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
7f8eacd2 1879 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
a2cf96f9 1880 .vidioc_enumaudio = vidioc_enumaudio,
8b2f0795
DH		 1881 .vidioc_g_audio = vidioc_g_audio,
1882 .vidioc_s_audio = vidioc_s_audio,
1883 .vidioc_cropcap = vidioc_cropcap,
8b2f0795
DH		 1884 .vidioc_reqbufs = vidioc_reqbufs,
1885 .vidioc_querybuf = vidioc_querybuf,
1886 .vidioc_qbuf = vidioc_qbuf,
1887 .vidioc_dqbuf = vidioc_dqbuf,
1888 .vidioc_s_std = vidioc_s_std,
33b6b89b 1889 .vidioc_g_std = vidioc_g_std,
8b2f0795
DH		 1890 .vidioc_enum_input = vidioc_enum_input,
1891 .vidioc_g_input = vidioc_g_input,
1892 .vidioc_s_input = vidioc_s_input,
8b2f0795
DH		 1893 .vidioc_streamon = vidioc_streamon,
1894 .vidioc_streamoff = vidioc_streamoff,
1895 .vidioc_g_tuner = vidioc_g_tuner,
1896 .vidioc_s_tuner = vidioc_s_tuner,
1897 .vidioc_g_frequency = vidioc_g_frequency,
1898 .vidioc_s_frequency = vidioc_s_frequency,
1899#ifdef CONFIG_VIDEO_ADV_DEBUG
1900 .vidioc_g_register = vidioc_g_register,
1901 .vidioc_s_register = vidioc_s_register,
8b2f0795 1902#endif
80c6e358 1903 .vidioc_g_chip_ident = vidioc_g_chip_ident,
83b09422
HV		 1904 .vidioc_log_status = vidioc_log_status,
1905 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1906 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
8b2f0795
DH		 1907};
1908
1909static const struct video_device au0828_video_template = {
1910 .fops = &au0828_v4l_fops,
1911 .release = video_device_release,
1912 .ioctl_ops = &video_ioctl_ops,
0ef21071 1913 .tvnorms = V4L2_STD_NTSC_M,
8b2f0795
DH		 1914};
1915
1916/**************************************************************************/
1917
fc4ce6cd
DH		 1918int au0828_analog_register(struct au0828_dev *dev,
1919 struct usb_interface *interface)
8b2f0795
DH		 1920{
1921 int retval = -ENOMEM;
fc4ce6cd
DH		 1922 struct usb_host_interface *iface_desc;
1923 struct usb_endpoint_descriptor *endpoint;
d63b21bf 1924 int i, ret;
8b2f0795
DH		 1925
1926 dprintk(1, "au0828_analog_register called!\n");
1927
fc4ce6cd
DH		 1928 /* set au0828 usb interface0 to as5 */
1929 retval = usb_set_interface(dev->usbdev,
62899a28 1930 interface->cur_altsetting->desc.bInterfaceNumber, 5);
fc4ce6cd 1931 if (retval != 0) {
62899a28 1932 printk(KERN_INFO "Failure setting usb interface0 to as5\n");
fc4ce6cd
DH		 1933 return retval;
1934 }
1935
1936 /* Figure out which endpoint has the isoc interface */
1937 iface_desc = interface->cur_altsetting;
62899a28 1938 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
fc4ce6cd 1939 endpoint = &iface_desc->endpoint[i].desc;
62899a28
DH		 1940 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1941 == USB_DIR_IN) &&
1942 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1943 == USB_ENDPOINT_XFER_ISOC)) {
fc4ce6cd
DH		 1944
1945 /* we find our isoc in endpoint */
1946 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
62899a28
DH		 1947 dev->max_pkt_size = (tmp & 0x07ff) *
1948 (((tmp & 0x1800) >> 11) + 1);
fc4ce6cd
DH		 1949 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
1950 }
1951 }
62899a28
DH		 1952 if (!(dev->isoc_in_endpointaddr)) {
1953 printk(KERN_INFO "Could not locate isoc endpoint\n");
fc4ce6cd
DH		 1954 kfree(dev);
1955 return -ENODEV;
1956 }
1957
8b2f0795
DH		 1958 init_waitqueue_head(&dev->open);
1959 spin_lock_init(&dev->slock);
8b2f0795 1960
7f8eacd2 1961 /* init video dma queues */
8b2f0795
DH		 1962 INIT_LIST_HEAD(&dev->vidq.active);
1963 INIT_LIST_HEAD(&dev->vidq.queued);
7f8eacd2
DH		 1964 INIT_LIST_HEAD(&dev->vbiq.active);
1965 INIT_LIST_HEAD(&dev->vbiq.queued);
8b2f0795 1966
78ca5005
DH		 1967 dev->vid_timeout.function = au0828_vid_buffer_timeout;
1968 dev->vid_timeout.data = (unsigned long) dev;
1969 init_timer(&dev->vid_timeout);
1970
1971 dev->vbi_timeout.function = au0828_vbi_buffer_timeout;
1972 dev->vbi_timeout.data = (unsigned long) dev;
1973 init_timer(&dev->vbi_timeout);
1974
8b2f0795
DH		 1975 dev->width = NTSC_STD_W;
1976 dev->height = NTSC_STD_H;
1977 dev->field_size = dev->width * dev->height;
1978 dev->frame_size = dev->field_size << 1;
1979 dev->bytesperline = dev->width << 1;
de8d2bbf
HV		 1980 dev->vbi_width = 720;
1981 dev->vbi_height = 1;
8b2f0795 1982 dev->ctrl_ainput = 0;
e1cf6587 1983 dev->ctrl_freq = 960;
33b6b89b 1984 dev->std = V4L2_STD_NTSC_M;
8b2f0795
DH		 1985
1986 /* allocate and fill v4l2 video struct */
1987 dev->vdev = video_device_alloc();
62899a28 1988 if (NULL == dev->vdev) {
8b2f0795
DH		 1989 dprintk(1, "Can't allocate video_device.\n");
1990 return -ENOMEM;
1991 }
1992
7f8eacd2 1993 /* allocate the VBI struct */
8b2f0795 1994 dev->vbi_dev = video_device_alloc();
62899a28 1995 if (NULL == dev->vbi_dev) {
8b2f0795 1996 dprintk(1, "Can't allocate vbi_device.\n");
d63b21bf
JL		 1997 ret = -ENOMEM;
1998 goto err_vdev;
8b2f0795
DH		 1999 }
2000
2001 /* Fill the video capture device struct */
2002 *dev->vdev = au0828_video_template;
e8c26f45 2003 dev->vdev->v4l2_dev = &dev->v4l2_dev;
549ee4df 2004 dev->vdev->lock = &dev->lock;
83b09422 2005 set_bit(V4L2_FL_USE_FH_PRIO, &dev->vdev->flags);
8b2f0795
DH		 2006 strcpy(dev->vdev->name, "au0828a video");
2007
2008 /* Setup the VBI device */
2009 *dev->vbi_dev = au0828_video_template;
e8c26f45 2010 dev->vbi_dev->v4l2_dev = &dev->v4l2_dev;
549ee4df 2011 dev->vbi_dev->lock = &dev->lock;
83b09422 2012 set_bit(V4L2_FL_USE_FH_PRIO, &dev->vbi_dev->flags);
8b2f0795
DH		 2013 strcpy(dev->vbi_dev->name, "au0828a vbi");
2014
8b2f0795 2015 /* Register the v4l2 device */
63b0d5ad 2016 video_set_drvdata(dev->vdev, dev);
62899a28
DH		 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);
d63b21bf
JL		 2021 ret = -ENODEV;
2022 goto err_vbi_dev;
8b2f0795
DH		 2023 }
2024
2025 /* Register the vbi device */
63b0d5ad 2026 video_set_drvdata(dev->vbi_dev, dev);
62899a28
DH		 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);
d63b21bf
JL		 2031 ret = -ENODEV;
2032 goto err_vbi_dev;
8b2f0795
DH		 2033 }
2034
62899a28 2035 dprintk(1, "%s completed!\n", __func__);
8b2f0795
DH		 2036
2037 return 0;
d63b21bf
JL		 2038
2039err_vbi_dev:
2040 video_device_release(dev->vbi_dev);
2041err_vdev:
2042 video_device_release(dev->vdev);
2043 return ret;
8b2f0795
DH		 2044}
2045
kernel source for telekom puls (alcatel/mediatek)