drivers/media/usb/au0828/au0828-video.c

   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  * The hardware scaler supported is unimplemented
  26  * AC97 audio support is unimplemented (only i2s audio mode)
  27  *
  28  */
  29
  30 #include "au0828.h"
  31
  32 #include <linux/module.h>
  33 #include <linux/slab.h>
  34 #include <linux/init.h>
  35 #include <linux/device.h>
  36 #include <media/v4l2-common.h>
  37 #include <media/v4l2-ioctl.h>
  38 #include <media/v4l2-event.h>
  39 #include <media/tuner.h>
  40 #include "au0828-reg.h"
  41
  42 static DEFINE_MUTEX(au0828_sysfs_lock);
  43
  44 /* ------------------------------------------------------------------
  45         Videobuf operations
  46    ------------------------------------------------------------------*/
  47
  48 static unsigned int isoc_debug;
  49 module_param(isoc_debug, int, 0644);
  50 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
  51
  52 #define au0828_isocdbg(fmt, arg...) \
  53 do {\
  54         if (isoc_debug) { \
  55                 pr_info("au0828 %s :"fmt, \
  56                        __func__ , ##arg);          \
  57         } \
  58   } while (0)
  59
  60 static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val)
  61 {
  62         if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
  63                 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val);
  64 }
  65
  66 static inline void print_err_status(struct au0828_dev *dev,
  67                                     int packet, int status)
  68 {
  69         char *errmsg = "Unknown";
  70
  71         switch (status) {
  72         case -ENOENT:
  73                 errmsg = "unlinked synchronuously";
  74                 break;
  75         case -ECONNRESET:
  76                 errmsg = "unlinked asynchronuously";
  77                 break;
  78         case -ENOSR:
  79                 errmsg = "Buffer error (overrun)";
  80                 break;
  81         case -EPIPE:
  82                 errmsg = "Stalled (device not responding)";
  83                 break;
  84         case -EOVERFLOW:
  85                 errmsg = "Babble (bad cable?)";
  86                 break;
  87         case -EPROTO:
  88                 errmsg = "Bit-stuff error (bad cable?)";
  89                 break;
  90         case -EILSEQ:
  91                 errmsg = "CRC/Timeout (could be anything)";
  92                 break;
  93         case -ETIME:
  94                 errmsg = "Device does not respond";
  95                 break;
  96         }
  97         if (packet < 0) {
  98                 au0828_isocdbg("URB status %d [%s].\n", status, errmsg);
  99         } else {
 100                 au0828_isocdbg("URB packet %d, status %d [%s].\n",
 101                                packet, status, errmsg);
 102         }
 103 }
 104
 105 static int check_dev(struct au0828_dev *dev)
 106 {
 107         if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) {
 108                 pr_info("v4l2 ioctl: device not present\n");
 109                 return -ENODEV;
 110         }
 111
 112         if (test_bit(DEV_MISCONFIGURED, &dev->dev_state)) {
 113                 pr_info("v4l2 ioctl: device is misconfigured; close and open it again\n");
 114                 return -EIO;
 115         }
 116         return 0;
 117 }
 118
 119 /*
 120  * IRQ callback, called by URB callback
 121  */
 122 static void au0828_irq_callback(struct urb *urb)
 123 {
 124         struct au0828_dmaqueue  *dma_q = urb->context;
 125         struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
 126         unsigned long flags = 0;
 127         int i;
 128
 129         switch (urb->status) {
 130         case 0:             /* success */
 131         case -ETIMEDOUT:    /* NAK */
 132                 break;
 133         case -ECONNRESET:   /* kill */
 134         case -ENOENT:
 135         case -ESHUTDOWN:
 136                 au0828_isocdbg("au0828_irq_callback called: status kill\n");
 137                 return;
 138         default:            /* unknown error */
 139                 au0828_isocdbg("urb completition error %d.\n", urb->status);
 140                 break;
 141         }
 142
 143         /* Copy data from URB */
 144         spin_lock_irqsave(&dev->slock, flags);
 145         dev->isoc_ctl.isoc_copy(dev, urb);
 146         spin_unlock_irqrestore(&dev->slock, flags);
 147
 148         /* Reset urb buffers */
 149         for (i = 0; i < urb->number_of_packets; i++) {
 150                 urb->iso_frame_desc[i].status = 0;
 151                 urb->iso_frame_desc[i].actual_length = 0;
 152         }
 153         urb->status = 0;
 154
 155         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 156         if (urb->status) {
 157                 au0828_isocdbg("urb resubmit failed (error=%i)\n",
 158                                urb->status);
 159         }
 160         dev->stream_state = STREAM_ON;
 161 }
 162
 163 /*
 164  * Stop and Deallocate URBs
 165  */
 166 static void au0828_uninit_isoc(struct au0828_dev *dev)
 167 {
 168         struct urb *urb;
 169         int i;
 170
 171         au0828_isocdbg("au0828: called au0828_uninit_isoc\n");
 172
 173         dev->isoc_ctl.nfields = -1;
 174         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 175                 urb = dev->isoc_ctl.urb[i];
 176                 if (urb) {
 177                         if (!irqs_disabled())
 178                                 usb_kill_urb(urb);
 179                         else
 180                                 usb_unlink_urb(urb);
 181
 182                         if (dev->isoc_ctl.transfer_buffer[i]) {
 183                                 usb_free_coherent(dev->usbdev,
 184                                         urb->transfer_buffer_length,
 185                                         dev->isoc_ctl.transfer_buffer[i],
 186                                         urb->transfer_dma);
 187                         }
 188                         usb_free_urb(urb);
 189                         dev->isoc_ctl.urb[i] = NULL;
 190                 }
 191                 dev->isoc_ctl.transfer_buffer[i] = NULL;
 192         }
 193
 194         kfree(dev->isoc_ctl.urb);
 195         kfree(dev->isoc_ctl.transfer_buffer);
 196
 197         dev->isoc_ctl.urb = NULL;
 198         dev->isoc_ctl.transfer_buffer = NULL;
 199         dev->isoc_ctl.num_bufs = 0;
 200
 201         dev->stream_state = STREAM_OFF;
 202 }
 203
 204 /*
 205  * Allocate URBs and start IRQ
 206  */
 207 static 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))
 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         dev->isoc_ctl.isoc_copy = isoc_copy;
 221         dev->isoc_ctl.num_bufs = num_bufs;
 222
 223         dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs,  GFP_KERNEL);
 224         if (!dev->isoc_ctl.urb) {
 225                 au0828_isocdbg("cannot alloc memory for usb buffers\n");
 226                 return -ENOMEM;
 227         }
 228
 229         dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs,
 230                                               GFP_KERNEL);
 231         if (!dev->isoc_ctl.transfer_buffer) {
 232                 au0828_isocdbg("cannot allocate memory for usb transfer\n");
 233                 kfree(dev->isoc_ctl.urb);
 234                 return -ENOMEM;
 235         }
 236
 237         dev->isoc_ctl.max_pkt_size = max_pkt_size;
 238         dev->isoc_ctl.buf = NULL;
 239
 240         sb_size = max_packets * dev->isoc_ctl.max_pkt_size;
 241
 242         /* allocate urbs and transfer buffers */
 243         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 244                 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
 245                 if (!urb) {
 246                         au0828_isocdbg("cannot alloc isoc_ctl.urb %i\n", i);
 247                         au0828_uninit_isoc(dev);
 248                         return -ENOMEM;
 249                 }
 250                 dev->isoc_ctl.urb[i] = urb;
 251
 252                 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev,
 253                         sb_size, GFP_KERNEL, &urb->transfer_dma);
 254                 if (!dev->isoc_ctl.transfer_buffer[i]) {
 255                         printk("unable to allocate %i bytes for transfer"
 256                                         " buffer %i%s\n",
 257                                         sb_size, i,
 258                                         in_interrupt() ? " while in int" : "");
 259                         au0828_uninit_isoc(dev);
 260                         return -ENOMEM;
 261                 }
 262                 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
 263
 264                 pipe = usb_rcvisocpipe(dev->usbdev,
 265                                        dev->isoc_in_endpointaddr),
 266
 267                 usb_fill_int_urb(urb, dev->usbdev, pipe,
 268                                  dev->isoc_ctl.transfer_buffer[i], sb_size,
 269                                  au0828_irq_callback, dma_q, 1);
 270
 271                 urb->number_of_packets = max_packets;
 272                 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
 273
 274                 k = 0;
 275                 for (j = 0; j < max_packets; j++) {
 276                         urb->iso_frame_desc[j].offset = k;
 277                         urb->iso_frame_desc[j].length =
 278                                                 dev->isoc_ctl.max_pkt_size;
 279                         k += dev->isoc_ctl.max_pkt_size;
 280                 }
 281         }
 282
 283         /* submit urbs and enables IRQ */
 284         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 285                 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
 286                 if (rc) {
 287                         au0828_isocdbg("submit of urb %i failed (error=%i)\n",
 288                                        i, rc);
 289                         au0828_uninit_isoc(dev);
 290                         return rc;
 291                 }
 292         }
 293
 294         return 0;
 295 }
 296
 297 /*
 298  * Announces that a buffer were filled and request the next
 299  */
 300 static inline void buffer_filled(struct au0828_dev *dev,
 301                                  struct au0828_dmaqueue *dma_q,
 302                                  struct au0828_buffer *buf)
 303 {
 304         struct vb2_v4l2_buffer *vb = &buf->vb;
 305         struct vb2_queue *q = vb->vb2_buf.vb2_queue;
 306
 307         /* Advice that buffer was filled */
 308         au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field);
 309
 310         if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 311                 vb->sequence = dev->frame_count++;
 312         else
 313                 vb->sequence = dev->vbi_frame_count++;
 314
 315         vb->field = V4L2_FIELD_INTERLACED;
 316         v4l2_get_timestamp(&vb->timestamp);
 317         vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE);
 318 }
 319
 320 /*
 321  * Identify the buffer header type and properly handles
 322  */
 323 static void au0828_copy_video(struct au0828_dev *dev,
 324                               struct au0828_dmaqueue  *dma_q,
 325                               struct au0828_buffer *buf,
 326                               unsigned char *p,
 327                               unsigned char *outp, unsigned long len)
 328 {
 329         void *fieldstart, *startwrite, *startread;
 330         int  linesdone, currlinedone, offset, lencopy, remain;
 331         int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */
 332
 333         if (len == 0)
 334                 return;
 335
 336         if (dma_q->pos + len > buf->length)
 337                 len = buf->length - dma_q->pos;
 338
 339         startread = p;
 340         remain = len;
 341
 342         /* Interlaces frame */
 343         if (buf->top_field)
 344                 fieldstart = outp;
 345         else
 346                 fieldstart = outp + bytesperline;
 347
 348         linesdone = dma_q->pos / bytesperline;
 349         currlinedone = dma_q->pos % bytesperline;
 350         offset = linesdone * bytesperline * 2 + currlinedone;
 351         startwrite = fieldstart + offset;
 352         lencopy = bytesperline - currlinedone;
 353         lencopy = lencopy > remain ? remain : lencopy;
 354
 355         if ((char *)startwrite + lencopy > (char *)outp + buf->length) {
 356                 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
 357                                ((char *)startwrite + lencopy) -
 358                                ((char *)outp + buf->length));
 359                 remain = (char *)outp + buf->length - (char *)startwrite;
 360                 lencopy = remain;
 361         }
 362         if (lencopy <= 0)
 363                 return;
 364         memcpy(startwrite, startread, lencopy);
 365
 366         remain -= lencopy;
 367
 368         while (remain > 0) {
 369                 startwrite += lencopy + bytesperline;
 370                 startread += lencopy;
 371                 if (bytesperline > remain)
 372                         lencopy = remain;
 373                 else
 374                         lencopy = bytesperline;
 375
 376                 if ((char *)startwrite + lencopy > (char *)outp +
 377                     buf->length) {
 378                         au0828_isocdbg("Overflow %zi bytes past buf end (2)\n",
 379                                        ((char *)startwrite + lencopy) -
 380                                        ((char *)outp + buf->length));
 381                         lencopy = remain = (char *)outp + buf->length -
 382                                            (char *)startwrite;
 383                 }
 384                 if (lencopy <= 0)
 385                         break;
 386
 387                 memcpy(startwrite, startread, lencopy);
 388
 389                 remain -= lencopy;
 390         }
 391
 392         if (offset > 1440) {
 393                 /* We have enough data to check for greenscreen */
 394                 if (outp[0] < 0x60 && outp[1440] < 0x60)
 395                         dev->greenscreen_detected = 1;
 396         }
 397
 398         dma_q->pos += len;
 399 }
 400
 401 /*
 402  * video-buf generic routine to get the next available buffer
 403  */
 404 static inline void get_next_buf(struct au0828_dmaqueue *dma_q,
 405                                 struct au0828_buffer **buf)
 406 {
 407         struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
 408
 409         if (list_empty(&dma_q->active)) {
 410                 au0828_isocdbg("No active queue to serve\n");
 411                 dev->isoc_ctl.buf = NULL;
 412                 *buf = NULL;
 413                 return;
 414         }
 415
 416         /* Get the next buffer */
 417         *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
 418         /* Cleans up buffer - Useful for testing for frame/URB loss */
 419         list_del(&(*buf)->list);
 420         dma_q->pos = 0;
 421         (*buf)->vb_buf = (*buf)->mem;
 422         dev->isoc_ctl.buf = *buf;
 423
 424         return;
 425 }
 426
 427 static void au0828_copy_vbi(struct au0828_dev *dev,
 428                               struct au0828_dmaqueue  *dma_q,
 429                               struct au0828_buffer *buf,
 430                               unsigned char *p,
 431                               unsigned char *outp, unsigned long len)
 432 {
 433         unsigned char *startwrite, *startread;
 434         int bytesperline;
 435         int i, j = 0;
 436
 437         if (dev == NULL) {
 438                 au0828_isocdbg("dev is null\n");
 439                 return;
 440         }
 441
 442         if (dma_q == NULL) {
 443                 au0828_isocdbg("dma_q is null\n");
 444                 return;
 445         }
 446         if (buf == NULL)
 447                 return;
 448         if (p == NULL) {
 449                 au0828_isocdbg("p is null\n");
 450                 return;
 451         }
 452         if (outp == NULL) {
 453                 au0828_isocdbg("outp is null\n");
 454                 return;
 455         }
 456
 457         bytesperline = dev->vbi_width;
 458
 459         if (dma_q->pos + len > buf->length)
 460                 len = buf->length - dma_q->pos;
 461
 462         startread = p;
 463         startwrite = outp + (dma_q->pos / 2);
 464
 465         /* Make sure the bottom field populates the second half of the frame */
 466         if (buf->top_field == 0)
 467                 startwrite += bytesperline * dev->vbi_height;
 468
 469         for (i = 0; i < len; i += 2)
 470                 startwrite[j++] = startread[i+1];
 471
 472         dma_q->pos += len;
 473 }
 474
 475
 476 /*
 477  * video-buf generic routine to get the next available VBI buffer
 478  */
 479 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q,
 480                                     struct au0828_buffer **buf)
 481 {
 482         struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq);
 483
 484         if (list_empty(&dma_q->active)) {
 485                 au0828_isocdbg("No active queue to serve\n");
 486                 dev->isoc_ctl.vbi_buf = NULL;
 487                 *buf = NULL;
 488                 return;
 489         }
 490
 491         /* Get the next buffer */
 492         *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
 493         /* Cleans up buffer - Useful for testing for frame/URB loss */
 494         list_del(&(*buf)->list);
 495         dma_q->pos = 0;
 496         (*buf)->vb_buf = (*buf)->mem;
 497         dev->isoc_ctl.vbi_buf = *buf;
 498         return;
 499 }
 500
 501 /*
 502  * Controls the isoc copy of each urb packet
 503  */
 504 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
 505 {
 506         struct au0828_buffer    *buf;
 507         struct au0828_buffer    *vbi_buf;
 508         struct au0828_dmaqueue  *dma_q = urb->context;
 509         struct au0828_dmaqueue  *vbi_dma_q = &dev->vbiq;
 510         unsigned char *outp = NULL;
 511         unsigned char *vbioutp = NULL;
 512         int i, len = 0, rc = 1;
 513         unsigned char *p;
 514         unsigned char fbyte;
 515         unsigned int vbi_field_size;
 516         unsigned int remain, lencopy;
 517
 518         if (!dev)
 519                 return 0;
 520
 521         if (test_bit(DEV_DISCONNECTED, &dev->dev_state) ||
 522             test_bit(DEV_MISCONFIGURED, &dev->dev_state))
 523                 return 0;
 524
 525         if (urb->status < 0) {
 526                 print_err_status(dev, -1, urb->status);
 527                 if (urb->status == -ENOENT)
 528                         return 0;
 529         }
 530
 531         buf = dev->isoc_ctl.buf;
 532         if (buf != NULL)
 533                 outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
 534
 535         vbi_buf = dev->isoc_ctl.vbi_buf;
 536         if (vbi_buf != NULL)
 537                 vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0);
 538
 539         for (i = 0; i < urb->number_of_packets; i++) {
 540                 int status = urb->iso_frame_desc[i].status;
 541
 542                 if (status < 0) {
 543                         print_err_status(dev, i, status);
 544                         if (urb->iso_frame_desc[i].status != -EPROTO)
 545                                 continue;
 546                 }
 547
 548                 if (urb->iso_frame_desc[i].actual_length <= 0)
 549                         continue;
 550
 551                 if (urb->iso_frame_desc[i].actual_length >
 552                                                 dev->max_pkt_size) {
 553                         au0828_isocdbg("packet bigger than packet size");
 554                         continue;
 555                 }
 556
 557                 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
 558                 fbyte = p[0];
 559                 len = urb->iso_frame_desc[i].actual_length - 4;
 560                 p += 4;
 561
 562                 if (fbyte & 0x80) {
 563                         len -= 4;
 564                         p += 4;
 565                         au0828_isocdbg("Video frame %s\n",
 566                                        (fbyte & 0x40) ? "odd" : "even");
 567                         if (fbyte & 0x40) {
 568                                 /* VBI */
 569                                 if (vbi_buf != NULL)
 570                                         buffer_filled(dev, vbi_dma_q, vbi_buf);
 571                                 vbi_get_next_buf(vbi_dma_q, &vbi_buf);
 572                                 if (vbi_buf == NULL)
 573                                         vbioutp = NULL;
 574                                 else
 575                                         vbioutp = vb2_plane_vaddr(
 576                                                 &vbi_buf->vb.vb2_buf, 0);
 577
 578                                 /* Video */
 579                                 if (buf != NULL)
 580                                         buffer_filled(dev, dma_q, buf);
 581                                 get_next_buf(dma_q, &buf);
 582                                 if (buf == NULL)
 583                                         outp = NULL;
 584                                 else
 585                                         outp = vb2_plane_vaddr(
 586                                                 &buf->vb.vb2_buf, 0);
 587
 588                                 /* As long as isoc traffic is arriving, keep
 589                                    resetting the timer */
 590                                 if (dev->vid_timeout_running)
 591                                         mod_timer(&dev->vid_timeout,
 592                                                   jiffies + (HZ / 10));
 593                                 if (dev->vbi_timeout_running)
 594                                         mod_timer(&dev->vbi_timeout,
 595                                                   jiffies + (HZ / 10));
 596                         }
 597
 598                         if (buf != NULL) {
 599                                 if (fbyte & 0x40)
 600                                         buf->top_field = 1;
 601                                 else
 602                                         buf->top_field = 0;
 603                         }
 604
 605                         if (vbi_buf != NULL) {
 606                                 if (fbyte & 0x40)
 607                                         vbi_buf->top_field = 1;
 608                                 else
 609                                         vbi_buf->top_field = 0;
 610                         }
 611
 612                         dev->vbi_read = 0;
 613                         vbi_dma_q->pos = 0;
 614                         dma_q->pos = 0;
 615                 }
 616
 617                 vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
 618                 if (dev->vbi_read < vbi_field_size) {
 619                         remain  = vbi_field_size - dev->vbi_read;
 620                         if (len < remain)
 621                                 lencopy = len;
 622                         else
 623                                 lencopy = remain;
 624
 625                         if (vbi_buf != NULL)
 626                                 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
 627                                                 vbioutp, len);
 628
 629                         len -= lencopy;
 630                         p += lencopy;
 631                         dev->vbi_read += lencopy;
 632                 }
 633
 634                 if (dev->vbi_read >= vbi_field_size && buf != NULL)
 635                         au0828_copy_video(dev, dma_q, buf, p, outp, len);
 636         }
 637         return rc;
 638 }
 639
 640 static int queue_setup(struct vb2_queue *vq, const void *parg,
 641                        unsigned int *nbuffers, unsigned int *nplanes,
 642                        unsigned int sizes[], void *alloc_ctxs[])
 643 {
 644         const struct v4l2_format *fmt = parg;
 645         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 646         unsigned long img_size = dev->height * dev->bytesperline;
 647         unsigned long size;
 648
 649         size = fmt ? fmt->fmt.pix.sizeimage : img_size;
 650         if (size < img_size)
 651                 return -EINVAL;
 652
 653         *nplanes = 1;
 654         sizes[0] = size;
 655
 656         return 0;
 657 }
 658
 659 static int
 660 buffer_prepare(struct vb2_buffer *vb)
 661 {
 662         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 663         struct au0828_buffer *buf = container_of(vbuf,
 664                                 struct au0828_buffer, vb);
 665         struct au0828_dev    *dev = vb2_get_drv_priv(vb->vb2_queue);
 666
 667         buf->length = dev->height * dev->bytesperline;
 668
 669         if (vb2_plane_size(vb, 0) < buf->length) {
 670                 pr_err("%s data will not fit into plane (%lu < %lu)\n",
 671                         __func__, vb2_plane_size(vb, 0), buf->length);
 672                 return -EINVAL;
 673         }
 674         vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length);
 675         return 0;
 676 }
 677
 678 static void
 679 buffer_queue(struct vb2_buffer *vb)
 680 {
 681         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 682         struct au0828_buffer    *buf     = container_of(vbuf,
 683                                                         struct au0828_buffer,
 684                                                         vb);
 685         struct au0828_dev       *dev     = vb2_get_drv_priv(vb->vb2_queue);
 686         struct au0828_dmaqueue  *vidq    = &dev->vidq;
 687         unsigned long flags = 0;
 688
 689         buf->mem = vb2_plane_vaddr(vb, 0);
 690         buf->length = vb2_plane_size(vb, 0);
 691
 692         spin_lock_irqsave(&dev->slock, flags);
 693         list_add_tail(&buf->list, &vidq->active);
 694         spin_unlock_irqrestore(&dev->slock, flags);
 695 }
 696
 697 static int au0828_i2s_init(struct au0828_dev *dev)
 698 {
 699         /* Enable i2s mode */
 700         au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
 701         return 0;
 702 }
 703
 704 /*
 705  * Auvitek au0828 analog stream enable
 706  */
 707 static int au0828_analog_stream_enable(struct au0828_dev *d)
 708 {
 709         struct usb_interface *iface;
 710         int ret, h, w;
 711
 712         dprintk(1, "au0828_analog_stream_enable called\n");
 713
 714         if (test_bit(DEV_DISCONNECTED, &d->dev_state))
 715                 return -ENODEV;
 716
 717         iface = usb_ifnum_to_if(d->usbdev, 0);
 718         if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) {
 719                 dprintk(1, "Changing intf#0 to alt 5\n");
 720                 /* set au0828 interface0 to AS5 here again */
 721                 ret = usb_set_interface(d->usbdev, 0, 5);
 722                 if (ret < 0) {
 723                         pr_info("Au0828 can't set alt setting to 5!\n");
 724                         return -EBUSY;
 725                 }
 726         }
 727
 728         h = d->height / 2 + 2;
 729         w = d->width * 2;
 730
 731         au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
 732         au0828_writereg(d, 0x106, 0x00);
 733         /* set x position */
 734         au0828_writereg(d, 0x110, 0x00);
 735         au0828_writereg(d, 0x111, 0x00);
 736         au0828_writereg(d, 0x114, w & 0xff);
 737         au0828_writereg(d, 0x115, w >> 8);
 738         /* set y position */
 739         au0828_writereg(d, 0x112, 0x00);
 740         au0828_writereg(d, 0x113, 0x00);
 741         au0828_writereg(d, 0x116, h & 0xff);
 742         au0828_writereg(d, 0x117, h >> 8);
 743         au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
 744
 745         return 0;
 746 }
 747
 748 static int au0828_analog_stream_disable(struct au0828_dev *d)
 749 {
 750         dprintk(1, "au0828_analog_stream_disable called\n");
 751         au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
 752         return 0;
 753 }
 754
 755 static void au0828_analog_stream_reset(struct au0828_dev *dev)
 756 {
 757         dprintk(1, "au0828_analog_stream_reset called\n");
 758         au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
 759         mdelay(30);
 760         au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
 761 }
 762
 763 /*
 764  * Some operations needs to stop current streaming
 765  */
 766 static int au0828_stream_interrupt(struct au0828_dev *dev)
 767 {
 768         int ret = 0;
 769
 770         dev->stream_state = STREAM_INTERRUPT;
 771         if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
 772                 return -ENODEV;
 773         else if (ret) {
 774                 set_bit(DEV_MISCONFIGURED, &dev->dev_state);
 775                 dprintk(1, "%s device is misconfigured!\n", __func__);
 776                 return ret;
 777         }
 778         return 0;
 779 }
 780
 781 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
 782 {
 783         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 784         int rc = 0;
 785
 786         dprintk(1, "au0828_start_analog_streaming called %d\n",
 787                 dev->streaming_users);
 788
 789         if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 790                 dev->frame_count = 0;
 791         else
 792                 dev->vbi_frame_count = 0;
 793
 794         if (dev->streaming_users == 0) {
 795                 /* If we were doing ac97 instead of i2s, it would go here...*/
 796                 au0828_i2s_init(dev);
 797                 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
 798                                    AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
 799                                    au0828_isoc_copy);
 800                 if (rc < 0) {
 801                         pr_info("au0828_init_isoc failed\n");
 802                         return rc;
 803                 }
 804
 805                 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 1);
 806
 807                 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 808                         dev->vid_timeout_running = 1;
 809                         mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
 810                 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
 811                         dev->vbi_timeout_running = 1;
 812                         mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
 813                 }
 814         }
 815         dev->streaming_users++;
 816         return rc;
 817 }
 818
 819 static void au0828_stop_streaming(struct vb2_queue *vq)
 820 {
 821         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 822         struct au0828_dmaqueue *vidq = &dev->vidq;
 823         unsigned long flags = 0;
 824
 825         dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users);
 826
 827         if (dev->streaming_users-- == 1) {
 828                 au0828_uninit_isoc(dev);
 829                 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
 830         }
 831
 832         dev->vid_timeout_running = 0;
 833         del_timer_sync(&dev->vid_timeout);
 834
 835         spin_lock_irqsave(&dev->slock, flags);
 836         if (dev->isoc_ctl.buf != NULL) {
 837                 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf,
 838                                 VB2_BUF_STATE_ERROR);
 839                 dev->isoc_ctl.buf = NULL;
 840         }
 841         while (!list_empty(&vidq->active)) {
 842                 struct au0828_buffer *buf;
 843
 844                 buf = list_entry(vidq->active.next, struct au0828_buffer, list);
 845                 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 846                 list_del(&buf->list);
 847         }
 848         spin_unlock_irqrestore(&dev->slock, flags);
 849 }
 850
 851 void au0828_stop_vbi_streaming(struct vb2_queue *vq)
 852 {
 853         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 854         struct au0828_dmaqueue *vbiq = &dev->vbiq;
 855         unsigned long flags = 0;
 856
 857         dprintk(1, "au0828_stop_vbi_streaming called %d\n",
 858                 dev->streaming_users);
 859
 860         if (dev->streaming_users-- == 1) {
 861                 au0828_uninit_isoc(dev);
 862                 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
 863         }
 864
 865         spin_lock_irqsave(&dev->slock, flags);
 866         if (dev->isoc_ctl.vbi_buf != NULL) {
 867                 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf,
 868                                 VB2_BUF_STATE_ERROR);
 869                 dev->isoc_ctl.vbi_buf = NULL;
 870         }
 871         while (!list_empty(&vbiq->active)) {
 872                 struct au0828_buffer *buf;
 873
 874                 buf = list_entry(vbiq->active.next, struct au0828_buffer, list);
 875                 list_del(&buf->list);
 876                 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 877         }
 878         spin_unlock_irqrestore(&dev->slock, flags);
 879
 880         dev->vbi_timeout_running = 0;
 881         del_timer_sync(&dev->vbi_timeout);
 882 }
 883
 884 static struct vb2_ops au0828_video_qops = {
 885         .queue_setup     = queue_setup,
 886         .buf_prepare     = buffer_prepare,
 887         .buf_queue       = buffer_queue,
 888         .start_streaming = au0828_start_analog_streaming,
 889         .stop_streaming  = au0828_stop_streaming,
 890         .wait_prepare    = vb2_ops_wait_prepare,
 891         .wait_finish     = vb2_ops_wait_finish,
 892 };
 893
 894 /* ------------------------------------------------------------------
 895    V4L2 interface
 896    ------------------------------------------------------------------*/
 897 /*
 898  * au0828_analog_unregister
 899  * unregister v4l2 devices
 900  */
 901 void au0828_analog_unregister(struct au0828_dev *dev)
 902 {
 903         dprintk(1, "au0828_analog_unregister called\n");
 904         mutex_lock(&au0828_sysfs_lock);
 905         video_unregister_device(&dev->vdev);
 906         video_unregister_device(&dev->vbi_dev);
 907         mutex_unlock(&au0828_sysfs_lock);
 908 }
 909
 910 /* This function ensures that video frames continue to be delivered even if
 911    the ITU-656 input isn't receiving any data (thereby preventing applications
 912    such as tvtime from hanging) */
 913 static void au0828_vid_buffer_timeout(unsigned long data)
 914 {
 915         struct au0828_dev *dev = (struct au0828_dev *) data;
 916         struct au0828_dmaqueue *dma_q = &dev->vidq;
 917         struct au0828_buffer *buf;
 918         unsigned char *vid_data;
 919         unsigned long flags = 0;
 920
 921         spin_lock_irqsave(&dev->slock, flags);
 922
 923         buf = dev->isoc_ctl.buf;
 924         if (buf != NULL) {
 925                 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
 926                 memset(vid_data, 0x00, buf->length); /* Blank green frame */
 927                 buffer_filled(dev, dma_q, buf);
 928         }
 929         get_next_buf(dma_q, &buf);
 930
 931         if (dev->vid_timeout_running == 1)
 932                 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
 933
 934         spin_unlock_irqrestore(&dev->slock, flags);
 935 }
 936
 937 static void au0828_vbi_buffer_timeout(unsigned long data)
 938 {
 939         struct au0828_dev *dev = (struct au0828_dev *) data;
 940         struct au0828_dmaqueue *dma_q = &dev->vbiq;
 941         struct au0828_buffer *buf;
 942         unsigned char *vbi_data;
 943         unsigned long flags = 0;
 944
 945         spin_lock_irqsave(&dev->slock, flags);
 946
 947         buf = dev->isoc_ctl.vbi_buf;
 948         if (buf != NULL) {
 949                 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
 950                 memset(vbi_data, 0x00, buf->length);
 951                 buffer_filled(dev, dma_q, buf);
 952         }
 953         vbi_get_next_buf(dma_q, &buf);
 954
 955         if (dev->vbi_timeout_running == 1)
 956                 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
 957         spin_unlock_irqrestore(&dev->slock, flags);
 958 }
 959
 960 static int au0828_v4l2_open(struct file *filp)
 961 {
 962         struct au0828_dev *dev = video_drvdata(filp);
 963         int ret;
 964
 965         dprintk(1,
 966                 "%s called std_set %d dev_state %ld stream users %d users %d\n",
 967                 __func__, dev->std_set_in_tuner_core, dev->dev_state,
 968                 dev->streaming_users, dev->users);
 969
 970         if (mutex_lock_interruptible(&dev->lock))
 971                 return -ERESTARTSYS;
 972
 973         ret = v4l2_fh_open(filp);
 974         if (ret) {
 975                 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n",
 976                                 __func__, ret);
 977                 mutex_unlock(&dev->lock);
 978                 return ret;
 979         }
 980
 981         if (dev->users == 0) {
 982                 au0828_analog_stream_enable(dev);
 983                 au0828_analog_stream_reset(dev);
 984                 dev->stream_state = STREAM_OFF;
 985                 set_bit(DEV_INITIALIZED, &dev->dev_state);
 986         }
 987         dev->users++;
 988         mutex_unlock(&dev->lock);
 989         return ret;
 990 }
 991
 992 static int au0828_v4l2_close(struct file *filp)
 993 {
 994         int ret;
 995         struct au0828_dev *dev = video_drvdata(filp);
 996         struct video_device *vdev = video_devdata(filp);
 997
 998         dprintk(1,
 999                 "%s called std_set %d dev_state %ld stream users %d users %d\n",
1000                 __func__, dev->std_set_in_tuner_core, dev->dev_state,
1001                 dev->streaming_users, dev->users);
1002
1003         mutex_lock(&dev->lock);
1004         if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) {
1005                 /* Cancel timeout thread in case they didn't call streamoff */
1006                 dev->vid_timeout_running = 0;
1007                 del_timer_sync(&dev->vid_timeout);
1008         } else if (vdev->vfl_type == VFL_TYPE_VBI &&
1009                         dev->vbi_timeout_running) {
1010                 /* Cancel timeout thread in case they didn't call streamoff */
1011                 dev->vbi_timeout_running = 0;
1012                 del_timer_sync(&dev->vbi_timeout);
1013         }
1014
1015         if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
1016                 goto end;
1017
1018         if (dev->users == 1) {
1019                 /* Save some power by putting tuner to sleep */
1020                 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0);
1021                 dev->std_set_in_tuner_core = 0;
1022
1023                 /* When close the device, set the usb intf0 into alt0 to free
1024                    USB bandwidth */
1025                 ret = usb_set_interface(dev->usbdev, 0, 0);
1026                 if (ret < 0)
1027                         pr_info("Au0828 can't set alternate to 0!\n");
1028         }
1029 end:
1030         _vb2_fop_release(filp, NULL);
1031         dev->users--;
1032         mutex_unlock(&dev->lock);
1033         return 0;
1034 }
1035
1036 /* Must be called with dev->lock held */
1037 static void au0828_init_tuner(struct au0828_dev *dev)
1038 {
1039         struct v4l2_frequency f = {
1040                 .frequency = dev->ctrl_freq,
1041                 .type = V4L2_TUNER_ANALOG_TV,
1042         };
1043
1044         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1045                 dev->std_set_in_tuner_core, dev->dev_state);
1046
1047         if (dev->std_set_in_tuner_core)
1048                 return;
1049         dev->std_set_in_tuner_core = 1;
1050         i2c_gate_ctrl(dev, 1);
1051         /* If we've never sent the standard in tuner core, do so now.
1052            We don't do this at device probe because we don't want to
1053            incur the cost of a firmware load */
1054         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std);
1055         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
1056         i2c_gate_ctrl(dev, 0);
1057 }
1058
1059 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
1060                              struct v4l2_format *format)
1061 {
1062         int ret;
1063         int width = format->fmt.pix.width;
1064         int height = format->fmt.pix.height;
1065
1066         /* If they are demanding a format other than the one we support,
1067            bail out (tvtime asks for UYVY and then retries with YUYV) */
1068         if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)
1069                 return -EINVAL;
1070
1071         /* format->fmt.pix.width only support 720 and height 480 */
1072         if (width != 720)
1073                 width = 720;
1074         if (height != 480)
1075                 height = 480;
1076
1077         format->fmt.pix.width = width;
1078         format->fmt.pix.height = height;
1079         format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1080         format->fmt.pix.bytesperline = width * 2;
1081         format->fmt.pix.sizeimage = width * height * 2;
1082         format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1083         format->fmt.pix.field = V4L2_FIELD_INTERLACED;
1084         format->fmt.pix.priv = 0;
1085
1086         if (cmd == VIDIOC_TRY_FMT)
1087                 return 0;
1088
1089         /* maybe set new image format, driver current only support 720*480 */
1090         dev->width = width;
1091         dev->height = height;
1092         dev->frame_size = width * height * 2;
1093         dev->field_size = width * height;
1094         dev->bytesperline = width * 2;
1095
1096         if (dev->stream_state == STREAM_ON) {
1097                 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
1098                 ret = au0828_stream_interrupt(dev);
1099                 if (ret != 0) {
1100                         dprintk(1, "error interrupting video stream!\n");
1101                         return ret;
1102                 }
1103         }
1104
1105         au0828_analog_stream_enable(dev);
1106
1107         return 0;
1108 }
1109
1110 static int vidioc_querycap(struct file *file, void  *priv,
1111                            struct v4l2_capability *cap)
1112 {
1113         struct video_device *vdev = video_devdata(file);
1114         struct au0828_dev *dev = video_drvdata(file);
1115
1116         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1117                 dev->std_set_in_tuner_core, dev->dev_state);
1118
1119         strlcpy(cap->driver, "au0828", sizeof(cap->driver));
1120         strlcpy(cap->card, dev->board.name, sizeof(cap->card));
1121         usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info));
1122
1123         /* set the device capabilities */
1124         cap->device_caps = V4L2_CAP_AUDIO |
1125                 V4L2_CAP_READWRITE |
1126                 V4L2_CAP_STREAMING |
1127                 V4L2_CAP_TUNER;
1128         if (vdev->vfl_type == VFL_TYPE_GRABBER)
1129                 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
1130         else
1131                 cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
1132         cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS |
1133                 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE;
1134         return 0;
1135 }
1136
1137 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1138                                         struct v4l2_fmtdesc *f)
1139 {
1140         if (f->index)
1141                 return -EINVAL;
1142
1143         dprintk(1, "%s called\n", __func__);
1144
1145         f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1146         strcpy(f->description, "Packed YUV2");
1147
1148         f->flags = 0;
1149         f->pixelformat = V4L2_PIX_FMT_UYVY;
1150
1151         return 0;
1152 }
1153
1154 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1155                                         struct v4l2_format *f)
1156 {
1157         struct au0828_dev *dev = video_drvdata(file);
1158
1159         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1160                 dev->std_set_in_tuner_core, dev->dev_state);
1161
1162         f->fmt.pix.width = dev->width;
1163         f->fmt.pix.height = dev->height;
1164         f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1165         f->fmt.pix.bytesperline = dev->bytesperline;
1166         f->fmt.pix.sizeimage = dev->frame_size;
1167         f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
1168         f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1169         f->fmt.pix.priv = 0;
1170         return 0;
1171 }
1172
1173 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1174                                   struct v4l2_format *f)
1175 {
1176         struct au0828_dev *dev = video_drvdata(file);
1177
1178         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1179                 dev->std_set_in_tuner_core, dev->dev_state);
1180
1181         return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
1182 }
1183
1184 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1185                                 struct v4l2_format *f)
1186 {
1187         struct au0828_dev *dev = video_drvdata(file);
1188         int rc;
1189
1190         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1191                 dev->std_set_in_tuner_core, dev->dev_state);
1192
1193         rc = check_dev(dev);
1194         if (rc < 0)
1195                 return rc;
1196
1197         if (vb2_is_busy(&dev->vb_vidq)) {
1198                 pr_info("%s queue busy\n", __func__);
1199                 rc = -EBUSY;
1200                 goto out;
1201         }
1202
1203         rc = au0828_set_format(dev, VIDIOC_S_FMT, f);
1204 out:
1205         return rc;
1206 }
1207
1208 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
1209 {
1210         struct au0828_dev *dev = video_drvdata(file);
1211
1212         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1213                 dev->std_set_in_tuner_core, dev->dev_state);
1214
1215         if (norm == dev->std)
1216                 return 0;
1217
1218         if (dev->streaming_users > 0)
1219                 return -EBUSY;
1220
1221         dev->std = norm;
1222
1223         au0828_init_tuner(dev);
1224
1225         i2c_gate_ctrl(dev, 1);
1226
1227         /*
1228          * FIXME: when we support something other than 60Hz standards,
1229          * we are going to have to make the au0828 bridge adjust the size
1230          * of its capture buffer, which is currently hardcoded at 720x480
1231          */
1232
1233         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm);
1234
1235         i2c_gate_ctrl(dev, 0);
1236
1237         return 0;
1238 }
1239
1240 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
1241 {
1242         struct au0828_dev *dev = video_drvdata(file);
1243
1244         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1245                 dev->std_set_in_tuner_core, dev->dev_state);
1246
1247         *norm = dev->std;
1248         return 0;
1249 }
1250
1251 static int vidioc_enum_input(struct file *file, void *priv,
1252                                 struct v4l2_input *input)
1253 {
1254         struct au0828_dev *dev = video_drvdata(file);
1255         unsigned int tmp;
1256
1257         static const char *inames[] = {
1258                 [AU0828_VMUX_UNDEFINED] = "Undefined",
1259                 [AU0828_VMUX_COMPOSITE] = "Composite",
1260                 [AU0828_VMUX_SVIDEO] = "S-Video",
1261                 [AU0828_VMUX_CABLE] = "Cable TV",
1262                 [AU0828_VMUX_TELEVISION] = "Television",
1263                 [AU0828_VMUX_DVB] = "DVB",
1264                 [AU0828_VMUX_DEBUG] = "tv debug"
1265         };
1266
1267         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1268                 dev->std_set_in_tuner_core, dev->dev_state);
1269
1270         tmp = input->index;
1271
1272         if (tmp >= AU0828_MAX_INPUT)
1273                 return -EINVAL;
1274         if (AUVI_INPUT(tmp).type == 0)
1275                 return -EINVAL;
1276
1277         input->index = tmp;
1278         strcpy(input->name, inames[AUVI_INPUT(tmp).type]);
1279         if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
1280             (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) {
1281                 input->type |= V4L2_INPUT_TYPE_TUNER;
1282                 input->audioset = 1;
1283         } else {
1284                 input->type |= V4L2_INPUT_TYPE_CAMERA;
1285                 input->audioset = 2;
1286         }
1287
1288         input->std = dev->vdev.tvnorms;
1289
1290         return 0;
1291 }
1292
1293 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1294 {
1295         struct au0828_dev *dev = video_drvdata(file);
1296
1297         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1298                 dev->std_set_in_tuner_core, dev->dev_state);
1299
1300         *i = dev->ctrl_input;
1301         return 0;
1302 }
1303
1304 static void au0828_s_input(struct au0828_dev *dev, int index)
1305 {
1306         int i;
1307
1308         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1309                 dev->std_set_in_tuner_core, dev->dev_state);
1310
1311         switch (AUVI_INPUT(index).type) {
1312         case AU0828_VMUX_SVIDEO:
1313                 dev->input_type = AU0828_VMUX_SVIDEO;
1314                 dev->ctrl_ainput = 1;
1315                 break;
1316         case AU0828_VMUX_COMPOSITE:
1317                 dev->input_type = AU0828_VMUX_COMPOSITE;
1318                 dev->ctrl_ainput = 1;
1319                 break;
1320         case AU0828_VMUX_TELEVISION:
1321                 dev->input_type = AU0828_VMUX_TELEVISION;
1322                 dev->ctrl_ainput = 0;
1323                 break;
1324         default:
1325                 dprintk(1, "unknown input type set [%d]\n",
1326                         AUVI_INPUT(index).type);
1327                 break;
1328         }
1329
1330         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
1331                         AUVI_INPUT(index).vmux, 0, 0);
1332
1333         for (i = 0; i < AU0828_MAX_INPUT; i++) {
1334                 int enable = 0;
1335                 if (AUVI_INPUT(i).audio_setup == NULL)
1336                         continue;
1337
1338                 if (i == index)
1339                         enable = 1;
1340                 else
1341                         enable = 0;
1342                 if (enable) {
1343                         (AUVI_INPUT(i).audio_setup)(dev, enable);
1344                 } else {
1345                         /* Make sure we leave it turned on if some
1346                            other input is routed to this callback */
1347                         if ((AUVI_INPUT(i).audio_setup) !=
1348                             ((AUVI_INPUT(index).audio_setup))) {
1349                                 (AUVI_INPUT(i).audio_setup)(dev, enable);
1350                         }
1351                 }
1352         }
1353
1354         v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
1355                         AUVI_INPUT(index).amux, 0, 0);
1356 }
1357
1358 static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
1359 {
1360         struct au0828_dev *dev = video_drvdata(file);
1361
1362         dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
1363                 index);
1364         if (index >= AU0828_MAX_INPUT)
1365                 return -EINVAL;
1366         if (AUVI_INPUT(index).type == 0)
1367                 return -EINVAL;
1368         dev->ctrl_input = index;
1369         au0828_s_input(dev, index);
1370         return 0;
1371 }
1372
1373 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a)
1374 {
1375         if (a->index > 1)
1376                 return -EINVAL;
1377
1378         dprintk(1, "%s called\n", __func__);
1379
1380         if (a->index == 0)
1381                 strcpy(a->name, "Television");
1382         else
1383                 strcpy(a->name, "Line in");
1384
1385         a->capability = V4L2_AUDCAP_STEREO;
1386         return 0;
1387 }
1388
1389 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1390 {
1391         struct au0828_dev *dev = video_drvdata(file);
1392
1393         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1394                 dev->std_set_in_tuner_core, dev->dev_state);
1395
1396         a->index = dev->ctrl_ainput;
1397         if (a->index == 0)
1398                 strcpy(a->name, "Television");
1399         else
1400                 strcpy(a->name, "Line in");
1401
1402         a->capability = V4L2_AUDCAP_STEREO;
1403         return 0;
1404 }
1405
1406 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)
1407 {
1408         struct au0828_dev *dev = video_drvdata(file);
1409
1410         if (a->index != dev->ctrl_ainput)
1411                 return -EINVAL;
1412
1413         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1414                 dev->std_set_in_tuner_core, dev->dev_state);
1415         return 0;
1416 }
1417
1418 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1419 {
1420         struct au0828_dev *dev = video_drvdata(file);
1421
1422         if (t->index != 0)
1423                 return -EINVAL;
1424
1425         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1426                 dev->std_set_in_tuner_core, dev->dev_state);
1427
1428         strcpy(t->name, "Auvitek tuner");
1429
1430         au0828_init_tuner(dev);
1431         i2c_gate_ctrl(dev, 1);
1432         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1433         i2c_gate_ctrl(dev, 0);
1434         return 0;
1435 }
1436
1437 static int vidioc_s_tuner(struct file *file, void *priv,
1438                                 const struct v4l2_tuner *t)
1439 {
1440         struct au0828_dev *dev = video_drvdata(file);
1441
1442         if (t->index != 0)
1443                 return -EINVAL;
1444
1445         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1446                 dev->std_set_in_tuner_core, dev->dev_state);
1447
1448         au0828_init_tuner(dev);
1449         i2c_gate_ctrl(dev, 1);
1450         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1451         i2c_gate_ctrl(dev, 0);
1452
1453         dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
1454                 t->afc);
1455
1456         return 0;
1457
1458 }
1459
1460 static int vidioc_g_frequency(struct file *file, void *priv,
1461                                 struct v4l2_frequency *freq)
1462 {
1463         struct au0828_dev *dev = video_drvdata(file);
1464
1465         if (freq->tuner != 0)
1466                 return -EINVAL;
1467         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1468                 dev->std_set_in_tuner_core, dev->dev_state);
1469         freq->frequency = dev->ctrl_freq;
1470         return 0;
1471 }
1472
1473 static int vidioc_s_frequency(struct file *file, void *priv,
1474                                 const struct v4l2_frequency *freq)
1475 {
1476         struct au0828_dev *dev = video_drvdata(file);
1477         struct v4l2_frequency new_freq = *freq;
1478
1479         if (freq->tuner != 0)
1480                 return -EINVAL;
1481
1482         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1483                 dev->std_set_in_tuner_core, dev->dev_state);
1484
1485         au0828_init_tuner(dev);
1486         i2c_gate_ctrl(dev, 1);
1487
1488         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
1489         /* Get the actual set (and possibly clamped) frequency */
1490         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
1491         dev->ctrl_freq = new_freq.frequency;
1492
1493         i2c_gate_ctrl(dev, 0);
1494
1495         au0828_analog_stream_reset(dev);
1496
1497         return 0;
1498 }
1499
1500
1501 /* RAW VBI ioctls */
1502
1503 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1504                                 struct v4l2_format *format)
1505 {
1506         struct au0828_dev *dev = video_drvdata(file);
1507
1508         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1509                 dev->std_set_in_tuner_core, dev->dev_state);
1510
1511         format->fmt.vbi.samples_per_line = dev->vbi_width;
1512         format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1513         format->fmt.vbi.offset = 0;
1514         format->fmt.vbi.flags = 0;
1515         format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
1516
1517         format->fmt.vbi.count[0] = dev->vbi_height;
1518         format->fmt.vbi.count[1] = dev->vbi_height;
1519         format->fmt.vbi.start[0] = 21;
1520         format->fmt.vbi.start[1] = 284;
1521         memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
1522
1523         return 0;
1524 }
1525
1526 static int vidioc_cropcap(struct file *file, void *priv,
1527                           struct v4l2_cropcap *cc)
1528 {
1529         struct au0828_dev *dev = video_drvdata(file);
1530
1531         if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1532                 return -EINVAL;
1533
1534         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1535                 dev->std_set_in_tuner_core, dev->dev_state);
1536
1537         cc->bounds.left = 0;
1538         cc->bounds.top = 0;
1539         cc->bounds.width = dev->width;
1540         cc->bounds.height = dev->height;
1541
1542         cc->defrect = cc->bounds;
1543
1544         cc->pixelaspect.numerator = 54;
1545         cc->pixelaspect.denominator = 59;
1546
1547         return 0;
1548 }
1549
1550 #ifdef CONFIG_VIDEO_ADV_DEBUG
1551 static int vidioc_g_register(struct file *file, void *priv,
1552                              struct v4l2_dbg_register *reg)
1553 {
1554         struct au0828_dev *dev = video_drvdata(file);
1555
1556         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1557                 dev->std_set_in_tuner_core, dev->dev_state);
1558
1559         reg->val = au0828_read(dev, reg->reg);
1560         reg->size = 1;
1561         return 0;
1562 }
1563
1564 static int vidioc_s_register(struct file *file, void *priv,
1565                              const struct v4l2_dbg_register *reg)
1566 {
1567         struct au0828_dev *dev = video_drvdata(file);
1568
1569         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1570                 dev->std_set_in_tuner_core, dev->dev_state);
1571
1572         return au0828_writereg(dev, reg->reg, reg->val);
1573 }
1574 #endif
1575
1576 static int vidioc_log_status(struct file *file, void *fh)
1577 {
1578         struct video_device *vdev = video_devdata(file);
1579
1580         dprintk(1, "%s called\n", __func__);
1581
1582         v4l2_ctrl_log_status(file, fh);
1583         v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status);
1584         return 0;
1585 }
1586
1587 void au0828_v4l2_suspend(struct au0828_dev *dev)
1588 {
1589         struct urb *urb;
1590         int i;
1591
1592         pr_info("stopping V4L2\n");
1593
1594         if (dev->stream_state == STREAM_ON) {
1595                 pr_info("stopping V4L2 active URBs\n");
1596                 au0828_analog_stream_disable(dev);
1597                 /* stop urbs */
1598                 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1599                         urb = dev->isoc_ctl.urb[i];
1600                         if (urb) {
1601                                 if (!irqs_disabled())
1602                                         usb_kill_urb(urb);
1603                                 else
1604                                         usb_unlink_urb(urb);
1605                         }
1606                 }
1607         }
1608
1609         if (dev->vid_timeout_running)
1610                 del_timer_sync(&dev->vid_timeout);
1611         if (dev->vbi_timeout_running)
1612                 del_timer_sync(&dev->vbi_timeout);
1613 }
1614
1615 void au0828_v4l2_resume(struct au0828_dev *dev)
1616 {
1617         int i, rc;
1618
1619         pr_info("restarting V4L2\n");
1620
1621         if (dev->stream_state == STREAM_ON) {
1622                 au0828_stream_interrupt(dev);
1623                 au0828_init_tuner(dev);
1624         }
1625
1626         if (dev->vid_timeout_running)
1627                 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
1628         if (dev->vbi_timeout_running)
1629                 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1630
1631         /* If we were doing ac97 instead of i2s, it would go here...*/
1632         au0828_i2s_init(dev);
1633
1634         au0828_analog_stream_enable(dev);
1635
1636         if (!(dev->stream_state == STREAM_ON)) {
1637                 au0828_analog_stream_reset(dev);
1638                 /* submit urbs */
1639                 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1640                         rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
1641                         if (rc) {
1642                                 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
1643                                                i, rc);
1644                                 au0828_uninit_isoc(dev);
1645                         }
1646                 }
1647         }
1648 }
1649
1650 static struct v4l2_file_operations au0828_v4l_fops = {
1651         .owner      = THIS_MODULE,
1652         .open       = au0828_v4l2_open,
1653         .release    = au0828_v4l2_close,
1654         .read       = vb2_fop_read,
1655         .poll       = vb2_fop_poll,
1656         .mmap       = vb2_fop_mmap,
1657         .unlocked_ioctl = video_ioctl2,
1658 };
1659
1660 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1661         .vidioc_querycap            = vidioc_querycap,
1662         .vidioc_enum_fmt_vid_cap    = vidioc_enum_fmt_vid_cap,
1663         .vidioc_g_fmt_vid_cap       = vidioc_g_fmt_vid_cap,
1664         .vidioc_try_fmt_vid_cap     = vidioc_try_fmt_vid_cap,
1665         .vidioc_s_fmt_vid_cap       = vidioc_s_fmt_vid_cap,
1666         .vidioc_g_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
1667         .vidioc_try_fmt_vbi_cap     = vidioc_g_fmt_vbi_cap,
1668         .vidioc_s_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
1669         .vidioc_enumaudio           = vidioc_enumaudio,
1670         .vidioc_g_audio             = vidioc_g_audio,
1671         .vidioc_s_audio             = vidioc_s_audio,
1672         .vidioc_cropcap             = vidioc_cropcap,
1673
1674         .vidioc_reqbufs             = vb2_ioctl_reqbufs,
1675         .vidioc_create_bufs         = vb2_ioctl_create_bufs,
1676         .vidioc_prepare_buf         = vb2_ioctl_prepare_buf,
1677         .vidioc_querybuf            = vb2_ioctl_querybuf,
1678         .vidioc_qbuf                = vb2_ioctl_qbuf,
1679         .vidioc_dqbuf               = vb2_ioctl_dqbuf,
1680         .vidioc_expbuf               = vb2_ioctl_expbuf,
1681
1682         .vidioc_s_std               = vidioc_s_std,
1683         .vidioc_g_std               = vidioc_g_std,
1684         .vidioc_enum_input          = vidioc_enum_input,
1685         .vidioc_g_input             = vidioc_g_input,
1686         .vidioc_s_input             = vidioc_s_input,
1687
1688         .vidioc_streamon            = vb2_ioctl_streamon,
1689         .vidioc_streamoff           = vb2_ioctl_streamoff,
1690
1691         .vidioc_g_tuner             = vidioc_g_tuner,
1692         .vidioc_s_tuner             = vidioc_s_tuner,
1693         .vidioc_g_frequency         = vidioc_g_frequency,
1694         .vidioc_s_frequency         = vidioc_s_frequency,
1695 #ifdef CONFIG_VIDEO_ADV_DEBUG
1696         .vidioc_g_register          = vidioc_g_register,
1697         .vidioc_s_register          = vidioc_s_register,
1698 #endif
1699         .vidioc_log_status          = vidioc_log_status,
1700         .vidioc_subscribe_event     = v4l2_ctrl_subscribe_event,
1701         .vidioc_unsubscribe_event   = v4l2_event_unsubscribe,
1702 };
1703
1704 static const struct video_device au0828_video_template = {
1705         .fops                       = &au0828_v4l_fops,
1706         .release                    = video_device_release_empty,
1707         .ioctl_ops                  = &video_ioctl_ops,
1708         .tvnorms                    = V4L2_STD_NTSC_M | V4L2_STD_PAL_M,
1709 };
1710
1711 static int au0828_vb2_setup(struct au0828_dev *dev)
1712 {
1713         int rc;
1714         struct vb2_queue *q;
1715
1716         /* Setup Videobuf2 for Video capture */
1717         q = &dev->vb_vidq;
1718         q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1719         q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1720         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1721         q->drv_priv = dev;
1722         q->buf_struct_size = sizeof(struct au0828_buffer);
1723         q->ops = &au0828_video_qops;
1724         q->mem_ops = &vb2_vmalloc_memops;
1725
1726         rc = vb2_queue_init(q);
1727         if (rc < 0)
1728                 return rc;
1729
1730         /* Setup Videobuf2 for VBI capture */
1731         q = &dev->vb_vbiq;
1732         q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1733         q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1734         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1735         q->drv_priv = dev;
1736         q->buf_struct_size = sizeof(struct au0828_buffer);
1737         q->ops = &au0828_vbi_qops;
1738         q->mem_ops = &vb2_vmalloc_memops;
1739
1740         rc = vb2_queue_init(q);
1741         if (rc < 0)
1742                 return rc;
1743
1744         return 0;
1745 }
1746
1747 /**************************************************************************/
1748
1749 int au0828_analog_register(struct au0828_dev *dev,
1750                            struct usb_interface *interface)
1751 {
1752         int retval = -ENOMEM;
1753         struct usb_host_interface *iface_desc;
1754         struct usb_endpoint_descriptor *endpoint;
1755         int i, ret;
1756
1757         dprintk(1, "au0828_analog_register called for intf#%d!\n",
1758                 interface->cur_altsetting->desc.bInterfaceNumber);
1759
1760         /* set au0828 usb interface0 to as5 */
1761         retval = usb_set_interface(dev->usbdev,
1762                         interface->cur_altsetting->desc.bInterfaceNumber, 5);
1763         if (retval != 0) {
1764                 pr_info("Failure setting usb interface0 to as5\n");
1765                 return retval;
1766         }
1767
1768         /* Figure out which endpoint has the isoc interface */
1769         iface_desc = interface->cur_altsetting;
1770         for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
1771                 endpoint = &iface_desc->endpoint[i].desc;
1772                 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1773                      == USB_DIR_IN) &&
1774                     ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1775                      == USB_ENDPOINT_XFER_ISOC)) {
1776
1777                         /* we find our isoc in endpoint */
1778                         u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
1779                         dev->max_pkt_size = (tmp & 0x07ff) *
1780                                 (((tmp & 0x1800) >> 11) + 1);
1781                         dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
1782                         dprintk(1,
1783                                 "Found isoc endpoint 0x%02x, max size = %d\n",
1784                                 dev->isoc_in_endpointaddr, dev->max_pkt_size);
1785                 }
1786         }
1787         if (!(dev->isoc_in_endpointaddr)) {
1788                 pr_info("Could not locate isoc endpoint\n");
1789                 return -ENODEV;
1790         }
1791
1792         init_waitqueue_head(&dev->open);
1793         spin_lock_init(&dev->slock);
1794
1795         /* init video dma queues */
1796         INIT_LIST_HEAD(&dev->vidq.active);
1797         INIT_LIST_HEAD(&dev->vbiq.active);
1798
1799         setup_timer(&dev->vid_timeout, au0828_vid_buffer_timeout,
1800                     (unsigned long)dev);
1801         setup_timer(&dev->vbi_timeout, au0828_vbi_buffer_timeout,
1802                     (unsigned long)dev);
1803
1804         dev->width = NTSC_STD_W;
1805         dev->height = NTSC_STD_H;
1806         dev->field_size = dev->width * dev->height;
1807         dev->frame_size = dev->field_size << 1;
1808         dev->bytesperline = dev->width << 1;
1809         dev->vbi_width = 720;
1810         dev->vbi_height = 1;
1811         dev->ctrl_ainput = 0;
1812         dev->ctrl_freq = 960;
1813         dev->std = V4L2_STD_NTSC_M;
1814         au0828_s_input(dev, 0);
1815
1816         mutex_init(&dev->vb_queue_lock);
1817         mutex_init(&dev->vb_vbi_queue_lock);
1818
1819         /* Fill the video capture device struct */
1820         dev->vdev = au0828_video_template;
1821         dev->vdev.v4l2_dev = &dev->v4l2_dev;
1822         dev->vdev.lock = &dev->lock;
1823         dev->vdev.queue = &dev->vb_vidq;
1824         dev->vdev.queue->lock = &dev->vb_queue_lock;
1825         strcpy(dev->vdev.name, "au0828a video");
1826
1827         /* Setup the VBI device */
1828         dev->vbi_dev = au0828_video_template;
1829         dev->vbi_dev.v4l2_dev = &dev->v4l2_dev;
1830         dev->vbi_dev.lock = &dev->lock;
1831         dev->vbi_dev.queue = &dev->vb_vbiq;
1832         dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock;
1833         strcpy(dev->vbi_dev.name, "au0828a vbi");
1834
1835         /* initialize videobuf2 stuff */
1836         retval = au0828_vb2_setup(dev);
1837         if (retval != 0) {
1838                 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n",
1839                         retval);
1840                 return -ENODEV;
1841         }
1842
1843         /* Register the v4l2 device */
1844         video_set_drvdata(&dev->vdev, dev);
1845         retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1);
1846         if (retval != 0) {
1847                 dprintk(1, "unable to register video device (error = %d).\n",
1848                         retval);
1849                 ret = -ENODEV;
1850                 goto err_reg_vdev;
1851         }
1852
1853         /* Register the vbi device */
1854         video_set_drvdata(&dev->vbi_dev, dev);
1855         retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1);
1856         if (retval != 0) {
1857                 dprintk(1, "unable to register vbi device (error = %d).\n",
1858                         retval);
1859                 ret = -ENODEV;
1860                 goto err_reg_vbi_dev;
1861         }
1862
1863         dprintk(1, "%s completed!\n", __func__);
1864
1865         return 0;
1866
1867 err_reg_vbi_dev:
1868         video_unregister_device(&dev->vdev);
1869 err_reg_vdev:
1870         vb2_queue_release(&dev->vb_vidq);
1871         vb2_queue_release(&dev->vb_vbiq);
1872         return ret;
1873 }
1874