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 (dev->dev_state & DEV_DISCONNECTED) {
 108                 pr_info("v4l2 ioctl: device not present\n");
 109                 return -ENODEV;
 110         }
 111
 112         if (dev->dev_state & DEV_MISCONFIGURED) {
 113                 pr_info("v4l2 ioctl: device is misconfigured; "
 114                        "close and open it again\n");
 115                 return -EIO;
 116         }
 117         return 0;
 118 }
 119
 120 /*
 121  * IRQ callback, called by URB callback
 122  */
 123 static void au0828_irq_callback(struct urb *urb)
 124 {
 125         struct au0828_dmaqueue  *dma_q = urb->context;
 126         struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
 127         unsigned long flags = 0;
 128         int i;
 129
 130         switch (urb->status) {
 131         case 0:             /* success */
 132         case -ETIMEDOUT:    /* NAK */
 133                 break;
 134         case -ECONNRESET:   /* kill */
 135         case -ENOENT:
 136         case -ESHUTDOWN:
 137                 au0828_isocdbg("au0828_irq_callback called: status kill\n");
 138                 return;
 139         default:            /* unknown error */
 140                 au0828_isocdbg("urb completition error %d.\n", urb->status);
 141                 break;
 142         }
 143
 144         /* Copy data from URB */
 145         spin_lock_irqsave(&dev->slock, flags);
 146         dev->isoc_ctl.isoc_copy(dev, urb);
 147         spin_unlock_irqrestore(&dev->slock, flags);
 148
 149         /* Reset urb buffers */
 150         for (i = 0; i < urb->number_of_packets; i++) {
 151                 urb->iso_frame_desc[i].status = 0;
 152                 urb->iso_frame_desc[i].actual_length = 0;
 153         }
 154         urb->status = 0;
 155
 156         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 157         if (urb->status) {
 158                 au0828_isocdbg("urb resubmit failed (error=%i)\n",
 159                                urb->status);
 160         }
 161         dev->stream_state = STREAM_ON;
 162 }
 163
 164 /*
 165  * Stop and Deallocate URBs
 166  */
 167 static void au0828_uninit_isoc(struct au0828_dev *dev)
 168 {
 169         struct urb *urb;
 170         int i;
 171
 172         au0828_isocdbg("au0828: called au0828_uninit_isoc\n");
 173
 174         dev->isoc_ctl.nfields = -1;
 175         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 176                 urb = dev->isoc_ctl.urb[i];
 177                 if (urb) {
 178                         if (!irqs_disabled())
 179                                 usb_kill_urb(urb);
 180                         else
 181                                 usb_unlink_urb(urb);
 182
 183                         if (dev->isoc_ctl.transfer_buffer[i]) {
 184                                 usb_free_coherent(dev->usbdev,
 185                                         urb->transfer_buffer_length,
 186                                         dev->isoc_ctl.transfer_buffer[i],
 187                                         urb->transfer_dma);
 188                         }
 189                         usb_free_urb(urb);
 190                         dev->isoc_ctl.urb[i] = NULL;
 191                 }
 192                 dev->isoc_ctl.transfer_buffer[i] = NULL;
 193         }
 194
 195         kfree(dev->isoc_ctl.urb);
 196         kfree(dev->isoc_ctl.transfer_buffer);
 197
 198         dev->isoc_ctl.urb = NULL;
 199         dev->isoc_ctl.transfer_buffer = NULL;
 200         dev->isoc_ctl.num_bufs = 0;
 201
 202         dev->stream_state = STREAM_OFF;
 203 }
 204
 205 /*
 206  * Allocate URBs and start IRQ
 207  */
 208 static int au0828_init_isoc(struct au0828_dev *dev, int max_packets,
 209                             int num_bufs, int max_pkt_size,
 210                             int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb))
 211 {
 212         struct au0828_dmaqueue *dma_q = &dev->vidq;
 213         int i;
 214         int sb_size, pipe;
 215         struct urb *urb;
 216         int j, k;
 217         int rc;
 218
 219         au0828_isocdbg("au0828: called au0828_prepare_isoc\n");
 220
 221         dev->isoc_ctl.isoc_copy = isoc_copy;
 222         dev->isoc_ctl.num_bufs = num_bufs;
 223
 224         dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs,  GFP_KERNEL);
 225         if (!dev->isoc_ctl.urb) {
 226                 au0828_isocdbg("cannot alloc memory for usb buffers\n");
 227                 return -ENOMEM;
 228         }
 229
 230         dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs,
 231                                               GFP_KERNEL);
 232         if (!dev->isoc_ctl.transfer_buffer) {
 233                 au0828_isocdbg("cannot allocate memory for usb transfer\n");
 234                 kfree(dev->isoc_ctl.urb);
 235                 return -ENOMEM;
 236         }
 237
 238         dev->isoc_ctl.max_pkt_size = max_pkt_size;
 239         dev->isoc_ctl.buf = NULL;
 240
 241         sb_size = max_packets * dev->isoc_ctl.max_pkt_size;
 242
 243         /* allocate urbs and transfer buffers */
 244         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 245                 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
 246                 if (!urb) {
 247                         au0828_isocdbg("cannot alloc isoc_ctl.urb %i\n", i);
 248                         au0828_uninit_isoc(dev);
 249                         return -ENOMEM;
 250                 }
 251                 dev->isoc_ctl.urb[i] = urb;
 252
 253                 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev,
 254                         sb_size, GFP_KERNEL, &urb->transfer_dma);
 255                 if (!dev->isoc_ctl.transfer_buffer[i]) {
 256                         printk("unable to allocate %i bytes for transfer"
 257                                         " buffer %i%s\n",
 258                                         sb_size, i,
 259                                         in_interrupt() ? " while in int" : "");
 260                         au0828_uninit_isoc(dev);
 261                         return -ENOMEM;
 262                 }
 263                 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
 264
 265                 pipe = usb_rcvisocpipe(dev->usbdev,
 266                                        dev->isoc_in_endpointaddr),
 267
 268                 usb_fill_int_urb(urb, dev->usbdev, pipe,
 269                                  dev->isoc_ctl.transfer_buffer[i], sb_size,
 270                                  au0828_irq_callback, dma_q, 1);
 271
 272                 urb->number_of_packets = max_packets;
 273                 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
 274
 275                 k = 0;
 276                 for (j = 0; j < max_packets; j++) {
 277                         urb->iso_frame_desc[j].offset = k;
 278                         urb->iso_frame_desc[j].length =
 279                                                 dev->isoc_ctl.max_pkt_size;
 280                         k += dev->isoc_ctl.max_pkt_size;
 281                 }
 282         }
 283
 284         /* submit urbs and enables IRQ */
 285         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 286                 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
 287                 if (rc) {
 288                         au0828_isocdbg("submit of urb %i failed (error=%i)\n",
 289                                        i, rc);
 290                         au0828_uninit_isoc(dev);
 291                         return rc;
 292                 }
 293         }
 294
 295         return 0;
 296 }
 297
 298 /*
 299  * Announces that a buffer were filled and request the next
 300  */
 301 static inline void buffer_filled(struct au0828_dev *dev,
 302                                   struct au0828_dmaqueue *dma_q,
 303                                   struct au0828_buffer *buf)
 304 {
 305         /* Advice that buffer was filled */
 306         au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field);
 307
 308         buf->vb.v4l2_buf.sequence = dev->frame_count++;
 309         buf->vb.v4l2_buf.field = V4L2_FIELD_INTERLACED;
 310         v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp);
 311         vb2_buffer_done(&buf->vb, VB2_BUF_STATE_DONE);
 312 }
 313
 314 static inline void vbi_buffer_filled(struct au0828_dev *dev,
 315                                      struct au0828_dmaqueue *dma_q,
 316                                      struct au0828_buffer *buf)
 317 {
 318         /* Advice that buffer was filled */
 319         au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field);
 320
 321         buf->vb.v4l2_buf.sequence = dev->vbi_frame_count++;
 322         buf->vb.v4l2_buf.field = V4L2_FIELD_INTERLACED;
 323         v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp);
 324         vb2_buffer_done(&buf->vb, VB2_BUF_STATE_DONE);
 325 }
 326
 327 /*
 328  * Identify the buffer header type and properly handles
 329  */
 330 static void au0828_copy_video(struct au0828_dev *dev,
 331                               struct au0828_dmaqueue  *dma_q,
 332                               struct au0828_buffer *buf,
 333                               unsigned char *p,
 334                               unsigned char *outp, unsigned long len)
 335 {
 336         void *fieldstart, *startwrite, *startread;
 337         int  linesdone, currlinedone, offset, lencopy, remain;
 338         int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */
 339
 340         if (len == 0)
 341                 return;
 342
 343         if (dma_q->pos + len > buf->length)
 344                 len = buf->length - dma_q->pos;
 345
 346         startread = p;
 347         remain = len;
 348
 349         /* Interlaces frame */
 350         if (buf->top_field)
 351                 fieldstart = outp;
 352         else
 353                 fieldstart = outp + bytesperline;
 354
 355         linesdone = dma_q->pos / bytesperline;
 356         currlinedone = dma_q->pos % bytesperline;
 357         offset = linesdone * bytesperline * 2 + currlinedone;
 358         startwrite = fieldstart + offset;
 359         lencopy = bytesperline - currlinedone;
 360         lencopy = lencopy > remain ? remain : lencopy;
 361
 362         if ((char *)startwrite + lencopy > (char *)outp + buf->length) {
 363                 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
 364                                ((char *)startwrite + lencopy) -
 365                                ((char *)outp + buf->length));
 366                 remain = (char *)outp + buf->length - (char *)startwrite;
 367                 lencopy = remain;
 368         }
 369         if (lencopy <= 0)
 370                 return;
 371         memcpy(startwrite, startread, lencopy);
 372
 373         remain -= lencopy;
 374
 375         while (remain > 0) {
 376                 startwrite += lencopy + bytesperline;
 377                 startread += lencopy;
 378                 if (bytesperline > remain)
 379                         lencopy = remain;
 380                 else
 381                         lencopy = bytesperline;
 382
 383                 if ((char *)startwrite + lencopy > (char *)outp +
 384                     buf->length) {
 385                         au0828_isocdbg("Overflow %zi bytes past buf end (2)\n",
 386                                        ((char *)startwrite + lencopy) -
 387                                        ((char *)outp + buf->length));
 388                         lencopy = remain = (char *)outp + buf->length -
 389                                            (char *)startwrite;
 390                 }
 391                 if (lencopy <= 0)
 392                         break;
 393
 394                 memcpy(startwrite, startread, lencopy);
 395
 396                 remain -= lencopy;
 397         }
 398
 399         if (offset > 1440) {
 400                 /* We have enough data to check for greenscreen */
 401                 if (outp[0] < 0x60 && outp[1440] < 0x60)
 402                         dev->greenscreen_detected = 1;
 403         }
 404
 405         dma_q->pos += len;
 406 }
 407
 408 /*
 409  * video-buf generic routine to get the next available buffer
 410  */
 411 static inline void get_next_buf(struct au0828_dmaqueue *dma_q,
 412                                 struct au0828_buffer **buf)
 413 {
 414         struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
 415
 416         if (list_empty(&dma_q->active)) {
 417                 au0828_isocdbg("No active queue to serve\n");
 418                 dev->isoc_ctl.buf = NULL;
 419                 *buf = NULL;
 420                 return;
 421         }
 422
 423         /* Get the next buffer */
 424         *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
 425         /* Cleans up buffer - Useful for testing for frame/URB loss */
 426         list_del(&(*buf)->list);
 427         dma_q->pos = 0;
 428         (*buf)->vb_buf = (*buf)->mem;
 429         dev->isoc_ctl.buf = *buf;
 430
 431         return;
 432 }
 433
 434 static void au0828_copy_vbi(struct au0828_dev *dev,
 435                               struct au0828_dmaqueue  *dma_q,
 436                               struct au0828_buffer *buf,
 437                               unsigned char *p,
 438                               unsigned char *outp, unsigned long len)
 439 {
 440         unsigned char *startwrite, *startread;
 441         int bytesperline;
 442         int i, j = 0;
 443
 444         if (dev == NULL) {
 445                 au0828_isocdbg("dev is null\n");
 446                 return;
 447         }
 448
 449         if (dma_q == NULL) {
 450                 au0828_isocdbg("dma_q is null\n");
 451                 return;
 452         }
 453         if (buf == NULL)
 454                 return;
 455         if (p == NULL) {
 456                 au0828_isocdbg("p is null\n");
 457                 return;
 458         }
 459         if (outp == NULL) {
 460                 au0828_isocdbg("outp is null\n");
 461                 return;
 462         }
 463
 464         bytesperline = dev->vbi_width;
 465
 466         if (dma_q->pos + len > buf->length)
 467                 len = buf->length - dma_q->pos;
 468
 469         startread = p;
 470         startwrite = outp + (dma_q->pos / 2);
 471
 472         /* Make sure the bottom field populates the second half of the frame */
 473         if (buf->top_field == 0)
 474                 startwrite += bytesperline * dev->vbi_height;
 475
 476         for (i = 0; i < len; i += 2)
 477                 startwrite[j++] = startread[i+1];
 478
 479         dma_q->pos += len;
 480 }
 481
 482
 483 /*
 484  * video-buf generic routine to get the next available VBI buffer
 485  */
 486 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q,
 487                                     struct au0828_buffer **buf)
 488 {
 489         struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq);
 490
 491         if (list_empty(&dma_q->active)) {
 492                 au0828_isocdbg("No active queue to serve\n");
 493                 dev->isoc_ctl.vbi_buf = NULL;
 494                 *buf = NULL;
 495                 return;
 496         }
 497
 498         /* Get the next buffer */
 499         *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
 500         /* Cleans up buffer - Useful for testing for frame/URB loss */
 501         list_del(&(*buf)->list);
 502         dma_q->pos = 0;
 503         (*buf)->vb_buf = (*buf)->mem;
 504         dev->isoc_ctl.vbi_buf = *buf;
 505         return;
 506 }
 507
 508 /*
 509  * Controls the isoc copy of each urb packet
 510  */
 511 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
 512 {
 513         struct au0828_buffer    *buf;
 514         struct au0828_buffer    *vbi_buf;
 515         struct au0828_dmaqueue  *dma_q = urb->context;
 516         struct au0828_dmaqueue  *vbi_dma_q = &dev->vbiq;
 517         unsigned char *outp = NULL;
 518         unsigned char *vbioutp = NULL;
 519         int i, len = 0, rc = 1;
 520         unsigned char *p;
 521         unsigned char fbyte;
 522         unsigned int vbi_field_size;
 523         unsigned int remain, lencopy;
 524
 525         if (!dev)
 526                 return 0;
 527
 528         if ((dev->dev_state & DEV_DISCONNECTED) ||
 529             (dev->dev_state & DEV_MISCONFIGURED))
 530                 return 0;
 531
 532         if (urb->status < 0) {
 533                 print_err_status(dev, -1, urb->status);
 534                 if (urb->status == -ENOENT)
 535                         return 0;
 536         }
 537
 538         buf = dev->isoc_ctl.buf;
 539         if (buf != NULL)
 540                 outp = vb2_plane_vaddr(&buf->vb, 0);
 541
 542         vbi_buf = dev->isoc_ctl.vbi_buf;
 543         if (vbi_buf != NULL)
 544                 vbioutp = vb2_plane_vaddr(&vbi_buf->vb, 0);
 545
 546         for (i = 0; i < urb->number_of_packets; i++) {
 547                 int status = urb->iso_frame_desc[i].status;
 548
 549                 if (status < 0) {
 550                         print_err_status(dev, i, status);
 551                         if (urb->iso_frame_desc[i].status != -EPROTO)
 552                                 continue;
 553                 }
 554
 555                 if (urb->iso_frame_desc[i].actual_length <= 0)
 556                         continue;
 557
 558                 if (urb->iso_frame_desc[i].actual_length >
 559                                                 dev->max_pkt_size) {
 560                         au0828_isocdbg("packet bigger than packet size");
 561                         continue;
 562                 }
 563
 564                 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
 565                 fbyte = p[0];
 566                 len = urb->iso_frame_desc[i].actual_length - 4;
 567                 p += 4;
 568
 569                 if (fbyte & 0x80) {
 570                         len -= 4;
 571                         p += 4;
 572                         au0828_isocdbg("Video frame %s\n",
 573                                        (fbyte & 0x40) ? "odd" : "even");
 574                         if (fbyte & 0x40) {
 575                                 /* VBI */
 576                                 if (vbi_buf != NULL)
 577                                         vbi_buffer_filled(dev,
 578                                                           vbi_dma_q,
 579                                                           vbi_buf);
 580                                 vbi_get_next_buf(vbi_dma_q, &vbi_buf);
 581                                 if (vbi_buf == NULL)
 582                                         vbioutp = NULL;
 583                                 else
 584                                         vbioutp = vb2_plane_vaddr(
 585                                                 &vbi_buf->vb, 0);
 586
 587                                 /* Video */
 588                                 if (buf != NULL)
 589                                         buffer_filled(dev, dma_q, buf);
 590                                 get_next_buf(dma_q, &buf);
 591                                 if (buf == NULL)
 592                                         outp = NULL;
 593                                 else
 594                                         outp = vb2_plane_vaddr(&buf->vb, 0);
 595
 596                                 /* As long as isoc traffic is arriving, keep
 597                                    resetting the timer */
 598                                 if (dev->vid_timeout_running)
 599                                         mod_timer(&dev->vid_timeout,
 600                                                   jiffies + (HZ / 10));
 601                                 if (dev->vbi_timeout_running)
 602                                         mod_timer(&dev->vbi_timeout,
 603                                                   jiffies + (HZ / 10));
 604                         }
 605
 606                         if (buf != NULL) {
 607                                 if (fbyte & 0x40)
 608                                         buf->top_field = 1;
 609                                 else
 610                                         buf->top_field = 0;
 611                         }
 612
 613                         if (vbi_buf != NULL) {
 614                                 if (fbyte & 0x40)
 615                                         vbi_buf->top_field = 1;
 616                                 else
 617                                         vbi_buf->top_field = 0;
 618                         }
 619
 620                         dev->vbi_read = 0;
 621                         vbi_dma_q->pos = 0;
 622                         dma_q->pos = 0;
 623                 }
 624
 625                 vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
 626                 if (dev->vbi_read < vbi_field_size) {
 627                         remain  = vbi_field_size - dev->vbi_read;
 628                         if (len < remain)
 629                                 lencopy = len;
 630                         else
 631                                 lencopy = remain;
 632
 633                         if (vbi_buf != NULL)
 634                                 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
 635                                                 vbioutp, len);
 636
 637                         len -= lencopy;
 638                         p += lencopy;
 639                         dev->vbi_read += lencopy;
 640                 }
 641
 642                 if (dev->vbi_read >= vbi_field_size && buf != NULL)
 643                         au0828_copy_video(dev, dma_q, buf, p, outp, len);
 644         }
 645         return rc;
 646 }
 647
 648 static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
 649                        unsigned int *nbuffers, unsigned int *nplanes,
 650                        unsigned int sizes[], void *alloc_ctxs[])
 651 {
 652         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 653         unsigned long img_size = dev->height * dev->bytesperline;
 654         unsigned long size;
 655
 656         size = fmt ? fmt->fmt.pix.sizeimage : img_size;
 657         if (size < img_size)
 658                 return -EINVAL;
 659
 660         *nplanes = 1;
 661         sizes[0] = size;
 662
 663         return 0;
 664 }
 665
 666 static int
 667 buffer_prepare(struct vb2_buffer *vb)
 668 {
 669         struct au0828_buffer *buf = container_of(vb, struct au0828_buffer, vb);
 670         struct au0828_dev    *dev = vb2_get_drv_priv(vb->vb2_queue);
 671
 672         buf->length = dev->height * dev->bytesperline;
 673
 674         if (vb2_plane_size(vb, 0) < buf->length) {
 675                 pr_err("%s data will not fit into plane (%lu < %lu)\n",
 676                         __func__, vb2_plane_size(vb, 0), buf->length);
 677                 return -EINVAL;
 678         }
 679         vb2_set_plane_payload(&buf->vb, 0, buf->length);
 680         return 0;
 681 }
 682
 683 static void
 684 buffer_queue(struct vb2_buffer *vb)
 685 {
 686         struct au0828_buffer    *buf     = container_of(vb,
 687                                                         struct au0828_buffer,
 688                                                         vb);
 689         struct au0828_dev       *dev     = vb2_get_drv_priv(vb->vb2_queue);
 690         struct au0828_dmaqueue  *vidq    = &dev->vidq;
 691         unsigned long flags = 0;
 692
 693         buf->mem = vb2_plane_vaddr(vb, 0);
 694         buf->length = vb2_plane_size(vb, 0);
 695
 696         spin_lock_irqsave(&dev->slock, flags);
 697         list_add_tail(&buf->list, &vidq->active);
 698         spin_unlock_irqrestore(&dev->slock, flags);
 699 }
 700
 701 static int au0828_i2s_init(struct au0828_dev *dev)
 702 {
 703         /* Enable i2s mode */
 704         au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
 705         return 0;
 706 }
 707
 708 /*
 709  * Auvitek au0828 analog stream enable
 710  */
 711 static int au0828_analog_stream_enable(struct au0828_dev *d)
 712 {
 713         struct usb_interface *iface;
 714         int ret, h, w;
 715
 716         dprintk(1, "au0828_analog_stream_enable called\n");
 717
 718         iface = usb_ifnum_to_if(d->usbdev, 0);
 719         if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) {
 720                 dprintk(1, "Changing intf#0 to alt 5\n");
 721                 /* set au0828 interface0 to AS5 here again */
 722                 ret = usb_set_interface(d->usbdev, 0, 5);
 723                 if (ret < 0) {
 724                         pr_info("Au0828 can't set alt setting to 5!\n");
 725                         return -EBUSY;
 726                 }
 727         }
 728
 729         h = d->height / 2 + 2;
 730         w = d->width * 2;
 731
 732         au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
 733         au0828_writereg(d, 0x106, 0x00);
 734         /* set x position */
 735         au0828_writereg(d, 0x110, 0x00);
 736         au0828_writereg(d, 0x111, 0x00);
 737         au0828_writereg(d, 0x114, w & 0xff);
 738         au0828_writereg(d, 0x115, w >> 8);
 739         /* set y position */
 740         au0828_writereg(d, 0x112, 0x00);
 741         au0828_writereg(d, 0x113, 0x00);
 742         au0828_writereg(d, 0x116, h & 0xff);
 743         au0828_writereg(d, 0x117, h >> 8);
 744         au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
 745
 746         return 0;
 747 }
 748
 749 static int au0828_analog_stream_disable(struct au0828_dev *d)
 750 {
 751         dprintk(1, "au0828_analog_stream_disable called\n");
 752         au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
 753         return 0;
 754 }
 755
 756 static void au0828_analog_stream_reset(struct au0828_dev *dev)
 757 {
 758         dprintk(1, "au0828_analog_stream_reset called\n");
 759         au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
 760         mdelay(30);
 761         au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
 762 }
 763
 764 /*
 765  * Some operations needs to stop current streaming
 766  */
 767 static int au0828_stream_interrupt(struct au0828_dev *dev)
 768 {
 769         int ret = 0;
 770
 771         dev->stream_state = STREAM_INTERRUPT;
 772         if (dev->dev_state == DEV_DISCONNECTED)
 773                 return -ENODEV;
 774         else if (ret) {
 775                 dev->dev_state = DEV_MISCONFIGURED;
 776                 dprintk(1, "%s device is misconfigured!\n", __func__);
 777                 return ret;
 778         }
 779         return 0;
 780 }
 781
 782 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
 783 {
 784         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 785         int rc = 0;
 786
 787         dprintk(1, "au0828_start_analog_streaming called %d\n",
 788                 dev->streaming_users);
 789
 790         if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 791                 dev->frame_count = 0;
 792         else
 793                 dev->vbi_frame_count = 0;
 794
 795         if (dev->streaming_users == 0) {
 796                 /* If we were doing ac97 instead of i2s, it would go here...*/
 797                 au0828_i2s_init(dev);
 798                 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
 799                                    AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
 800                                    au0828_isoc_copy);
 801                 if (rc < 0) {
 802                         pr_info("au0828_init_isoc failed\n");
 803                         return rc;
 804                 }
 805
 806                 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 807                         v4l2_device_call_all(&dev->v4l2_dev, 0, video,
 808                                                 s_stream, 1);
 809                         dev->vid_timeout_running = 1;
 810                         mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
 811                 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
 812                         dev->vbi_timeout_running = 1;
 813                         mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
 814                 }
 815         }
 816         dev->streaming_users++;
 817         return rc;
 818 }
 819
 820 static void au0828_stop_streaming(struct vb2_queue *vq)
 821 {
 822         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 823         struct au0828_dmaqueue *vidq = &dev->vidq;
 824         unsigned long flags = 0;
 825
 826         dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users);
 827
 828         if (dev->streaming_users-- == 1)
 829                 au0828_uninit_isoc(dev);
 830
 831         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
 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_STATE_ERROR);
 838                 dev->isoc_ctl.buf = NULL;
 839         }
 840         while (!list_empty(&vidq->active)) {
 841                 struct au0828_buffer *buf;
 842
 843                 buf = list_entry(vidq->active.next, struct au0828_buffer, list);
 844                 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
 845                 list_del(&buf->list);
 846         }
 847         spin_unlock_irqrestore(&dev->slock, flags);
 848 }
 849
 850 void au0828_stop_vbi_streaming(struct vb2_queue *vq)
 851 {
 852         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 853         struct au0828_dmaqueue *vbiq = &dev->vbiq;
 854         unsigned long flags = 0;
 855
 856         dprintk(1, "au0828_stop_vbi_streaming called %d\n",
 857                 dev->streaming_users);
 858
 859         if (dev->streaming_users-- == 1)
 860                 au0828_uninit_isoc(dev);
 861
 862         spin_lock_irqsave(&dev->slock, flags);
 863         if (dev->isoc_ctl.vbi_buf != NULL) {
 864                 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb,
 865                                 VB2_BUF_STATE_ERROR);
 866                 dev->isoc_ctl.vbi_buf = NULL;
 867         }
 868         while (!list_empty(&vbiq->active)) {
 869                 struct au0828_buffer *buf;
 870
 871                 buf = list_entry(vbiq->active.next, struct au0828_buffer, list);
 872                 list_del(&buf->list);
 873                 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
 874         }
 875         spin_unlock_irqrestore(&dev->slock, flags);
 876
 877         dev->vbi_timeout_running = 0;
 878         del_timer_sync(&dev->vbi_timeout);
 879 }
 880
 881 static struct vb2_ops au0828_video_qops = {
 882         .queue_setup     = queue_setup,
 883         .buf_prepare     = buffer_prepare,
 884         .buf_queue       = buffer_queue,
 885         .start_streaming = au0828_start_analog_streaming,
 886         .stop_streaming  = au0828_stop_streaming,
 887         .wait_prepare    = vb2_ops_wait_prepare,
 888         .wait_finish     = vb2_ops_wait_finish,
 889 };
 890
 891 /* ------------------------------------------------------------------
 892    V4L2 interface
 893    ------------------------------------------------------------------*/
 894 /*
 895  * au0828_analog_unregister
 896  * unregister v4l2 devices
 897  */
 898 void au0828_analog_unregister(struct au0828_dev *dev)
 899 {
 900         dprintk(1, "au0828_analog_unregister called\n");
 901         mutex_lock(&au0828_sysfs_lock);
 902
 903         if (dev->vdev)
 904                 video_unregister_device(dev->vdev);
 905         if (dev->vbi_dev)
 906                 video_unregister_device(dev->vbi_dev);
 907
 908         mutex_unlock(&au0828_sysfs_lock);
 909 }
 910
 911 /* This function ensures that video frames continue to be delivered even if
 912    the ITU-656 input isn't receiving any data (thereby preventing applications
 913    such as tvtime from hanging) */
 914 static void au0828_vid_buffer_timeout(unsigned long data)
 915 {
 916         struct au0828_dev *dev = (struct au0828_dev *) data;
 917         struct au0828_dmaqueue *dma_q = &dev->vidq;
 918         struct au0828_buffer *buf;
 919         unsigned char *vid_data;
 920         unsigned long flags = 0;
 921
 922         spin_lock_irqsave(&dev->slock, flags);
 923
 924         buf = dev->isoc_ctl.buf;
 925         if (buf != NULL) {
 926                 vid_data = vb2_plane_vaddr(&buf->vb, 0);
 927                 memset(vid_data, 0x00, buf->length); /* Blank green frame */
 928                 buffer_filled(dev, dma_q, buf);
 929         }
 930         get_next_buf(dma_q, &buf);
 931
 932         if (dev->vid_timeout_running == 1)
 933                 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
 934
 935         spin_unlock_irqrestore(&dev->slock, flags);
 936 }
 937
 938 static void au0828_vbi_buffer_timeout(unsigned long data)
 939 {
 940         struct au0828_dev *dev = (struct au0828_dev *) data;
 941         struct au0828_dmaqueue *dma_q = &dev->vbiq;
 942         struct au0828_buffer *buf;
 943         unsigned char *vbi_data;
 944         unsigned long flags = 0;
 945
 946         spin_lock_irqsave(&dev->slock, flags);
 947
 948         buf = dev->isoc_ctl.vbi_buf;
 949         if (buf != NULL) {
 950                 vbi_data = vb2_plane_vaddr(&buf->vb, 0);
 951                 memset(vbi_data, 0x00, buf->length);
 952                 vbi_buffer_filled(dev, dma_q, buf);
 953         }
 954         vbi_get_next_buf(dma_q, &buf);
 955
 956         if (dev->vbi_timeout_running == 1)
 957                 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
 958         spin_unlock_irqrestore(&dev->slock, flags);
 959 }
 960
 961 static int au0828_v4l2_open(struct file *filp)
 962 {
 963         struct au0828_dev *dev = video_drvdata(filp);
 964         int ret;
 965
 966         dprintk(1,
 967                 "%s called std_set %d dev_state %d stream users %d users %d\n",
 968                 __func__, dev->std_set_in_tuner_core, dev->dev_state,
 969                 dev->streaming_users, dev->users);
 970
 971         if (mutex_lock_interruptible(&dev->lock))
 972                 return -ERESTARTSYS;
 973
 974         ret = v4l2_fh_open(filp);
 975         if (ret) {
 976                 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n",
 977                                 __func__, ret);
 978                 mutex_unlock(&dev->lock);
 979                 return ret;
 980         }
 981
 982         if (dev->users == 0) {
 983                 au0828_analog_stream_enable(dev);
 984                 au0828_analog_stream_reset(dev);
 985                 dev->stream_state = STREAM_OFF;
 986                 dev->dev_state |= DEV_INITIALIZED;
 987         }
 988         dev->users++;
 989         mutex_unlock(&dev->lock);
 990         return ret;
 991 }
 992
 993 static int au0828_v4l2_close(struct file *filp)
 994 {
 995         int ret;
 996         struct au0828_dev *dev = video_drvdata(filp);
 997         struct video_device *vdev = video_devdata(filp);
 998
 999         dprintk(1,
1000                 "%s called std_set %d dev_state %d stream users %d users %d\n",
1001                 __func__, dev->std_set_in_tuner_core, dev->dev_state,
1002                 dev->streaming_users, dev->users);
1003
1004         mutex_lock(&dev->lock);
1005         if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) {
1006                 /* Cancel timeout thread in case they didn't call streamoff */
1007                 dev->vid_timeout_running = 0;
1008                 del_timer_sync(&dev->vid_timeout);
1009         } else if (vdev->vfl_type == VFL_TYPE_VBI &&
1010                         dev->vbi_timeout_running) {
1011                 /* Cancel timeout thread in case they didn't call streamoff */
1012                 dev->vbi_timeout_running = 0;
1013                 del_timer_sync(&dev->vbi_timeout);
1014         }
1015
1016         if (dev->dev_state == DEV_DISCONNECTED)
1017                 goto end;
1018
1019         if (dev->users == 1) {
1020                 /* Save some power by putting tuner to sleep */
1021                 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0);
1022                 dev->std_set_in_tuner_core = 0;
1023
1024                 /* When close the device, set the usb intf0 into alt0 to free
1025                    USB bandwidth */
1026                 ret = usb_set_interface(dev->usbdev, 0, 0);
1027                 if (ret < 0)
1028                         pr_info("Au0828 can't set alternate to 0!\n");
1029         }
1030 end:
1031         _vb2_fop_release(filp, NULL);
1032         dev->users--;
1033         mutex_unlock(&dev->lock);
1034         return 0;
1035 }
1036
1037 /* Must be called with dev->lock held */
1038 static void au0828_init_tuner(struct au0828_dev *dev)
1039 {
1040         struct v4l2_frequency f = {
1041                 .frequency = dev->ctrl_freq,
1042                 .type = V4L2_TUNER_ANALOG_TV,
1043         };
1044
1045         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1046                 dev->std_set_in_tuner_core, dev->dev_state);
1047
1048         if (dev->std_set_in_tuner_core)
1049                 return;
1050         dev->std_set_in_tuner_core = 1;
1051         i2c_gate_ctrl(dev, 1);
1052         /* If we've never sent the standard in tuner core, do so now.
1053            We don't do this at device probe because we don't want to
1054            incur the cost of a firmware load */
1055         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std);
1056         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
1057         i2c_gate_ctrl(dev, 0);
1058 }
1059
1060 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
1061                              struct v4l2_format *format)
1062 {
1063         int ret;
1064         int width = format->fmt.pix.width;
1065         int height = format->fmt.pix.height;
1066
1067         /* If they are demanding a format other than the one we support,
1068            bail out (tvtime asks for UYVY and then retries with YUYV) */
1069         if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)
1070                 return -EINVAL;
1071
1072         /* format->fmt.pix.width only support 720 and height 480 */
1073         if (width != 720)
1074                 width = 720;
1075         if (height != 480)
1076                 height = 480;
1077
1078         format->fmt.pix.width = width;
1079         format->fmt.pix.height = height;
1080         format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1081         format->fmt.pix.bytesperline = width * 2;
1082         format->fmt.pix.sizeimage = width * height * 2;
1083         format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1084         format->fmt.pix.field = V4L2_FIELD_INTERLACED;
1085         format->fmt.pix.priv = 0;
1086
1087         if (cmd == VIDIOC_TRY_FMT)
1088                 return 0;
1089
1090         /* maybe set new image format, driver current only support 720*480 */
1091         dev->width = width;
1092         dev->height = height;
1093         dev->frame_size = width * height * 2;
1094         dev->field_size = width * height;
1095         dev->bytesperline = width * 2;
1096
1097         if (dev->stream_state == STREAM_ON) {
1098                 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
1099                 ret = au0828_stream_interrupt(dev);
1100                 if (ret != 0) {
1101                         dprintk(1, "error interrupting video stream!\n");
1102                         return ret;
1103                 }
1104         }
1105
1106         au0828_analog_stream_enable(dev);
1107
1108         return 0;
1109 }
1110
1111 static int vidioc_querycap(struct file *file, void  *priv,
1112                            struct v4l2_capability *cap)
1113 {
1114         struct video_device *vdev = video_devdata(file);
1115         struct au0828_dev *dev = video_drvdata(file);
1116
1117         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1118                 dev->std_set_in_tuner_core, dev->dev_state);
1119
1120         strlcpy(cap->driver, "au0828", sizeof(cap->driver));
1121         strlcpy(cap->card, dev->board.name, sizeof(cap->card));
1122         usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info));
1123
1124         /* set the device capabilities */
1125         cap->device_caps = V4L2_CAP_AUDIO |
1126                 V4L2_CAP_READWRITE |
1127                 V4L2_CAP_STREAMING |
1128                 V4L2_CAP_TUNER;
1129         if (vdev->vfl_type == VFL_TYPE_GRABBER)
1130                 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
1131         else
1132                 cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
1133         cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS |
1134                 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE;
1135         return 0;
1136 }
1137
1138 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1139                                         struct v4l2_fmtdesc *f)
1140 {
1141         if (f->index)
1142                 return -EINVAL;
1143
1144         dprintk(1, "%s called\n", __func__);
1145
1146         f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1147         strcpy(f->description, "Packed YUV2");
1148
1149         f->flags = 0;
1150         f->pixelformat = V4L2_PIX_FMT_UYVY;
1151
1152         return 0;
1153 }
1154
1155 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1156                                         struct v4l2_format *f)
1157 {
1158         struct au0828_dev *dev = video_drvdata(file);
1159
1160         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1161                 dev->std_set_in_tuner_core, dev->dev_state);
1162
1163         f->fmt.pix.width = dev->width;
1164         f->fmt.pix.height = dev->height;
1165         f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1166         f->fmt.pix.bytesperline = dev->bytesperline;
1167         f->fmt.pix.sizeimage = dev->frame_size;
1168         f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
1169         f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1170         f->fmt.pix.priv = 0;
1171         return 0;
1172 }
1173
1174 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1175                                   struct v4l2_format *f)
1176 {
1177         struct au0828_dev *dev = video_drvdata(file);
1178
1179         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1180                 dev->std_set_in_tuner_core, dev->dev_state);
1181
1182         return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
1183 }
1184
1185 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1186                                 struct v4l2_format *f)
1187 {
1188         struct au0828_dev *dev = video_drvdata(file);
1189         int rc;
1190
1191         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1192                 dev->std_set_in_tuner_core, dev->dev_state);
1193
1194         rc = check_dev(dev);
1195         if (rc < 0)
1196                 return rc;
1197
1198         if (vb2_is_busy(&dev->vb_vidq)) {
1199                 pr_info("%s queue busy\n", __func__);
1200                 rc = -EBUSY;
1201                 goto out;
1202         }
1203
1204         rc = au0828_set_format(dev, VIDIOC_S_FMT, f);
1205 out:
1206         return rc;
1207 }
1208
1209 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
1210 {
1211         struct au0828_dev *dev = video_drvdata(file);
1212
1213         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1214                 dev->std_set_in_tuner_core, dev->dev_state);
1215
1216         if (norm == dev->std)
1217                 return 0;
1218
1219         if (dev->streaming_users > 0)
1220                 return -EBUSY;
1221
1222         dev->std = norm;
1223
1224         au0828_init_tuner(dev);
1225
1226         i2c_gate_ctrl(dev, 1);
1227
1228         /*
1229          * FIXME: when we support something other than 60Hz standards,
1230          * we are going to have to make the au0828 bridge adjust the size
1231          * of its capture buffer, which is currently hardcoded at 720x480
1232          */
1233
1234         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm);
1235
1236         i2c_gate_ctrl(dev, 0);
1237
1238         return 0;
1239 }
1240
1241 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
1242 {
1243         struct au0828_dev *dev = video_drvdata(file);
1244
1245         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1246                 dev->std_set_in_tuner_core, dev->dev_state);
1247
1248         *norm = dev->std;
1249         return 0;
1250 }
1251
1252 static int vidioc_enum_input(struct file *file, void *priv,
1253                                 struct v4l2_input *input)
1254 {
1255         struct au0828_dev *dev = video_drvdata(file);
1256         unsigned int tmp;
1257
1258         static const char *inames[] = {
1259                 [AU0828_VMUX_UNDEFINED] = "Undefined",
1260                 [AU0828_VMUX_COMPOSITE] = "Composite",
1261                 [AU0828_VMUX_SVIDEO] = "S-Video",
1262                 [AU0828_VMUX_CABLE] = "Cable TV",
1263                 [AU0828_VMUX_TELEVISION] = "Television",
1264                 [AU0828_VMUX_DVB] = "DVB",
1265                 [AU0828_VMUX_DEBUG] = "tv debug"
1266         };
1267
1268         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1269                 dev->std_set_in_tuner_core, dev->dev_state);
1270
1271         tmp = input->index;
1272
1273         if (tmp >= AU0828_MAX_INPUT)
1274                 return -EINVAL;
1275         if (AUVI_INPUT(tmp).type == 0)
1276                 return -EINVAL;
1277
1278         input->index = tmp;
1279         strcpy(input->name, inames[AUVI_INPUT(tmp).type]);
1280         if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
1281             (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) {
1282                 input->type |= V4L2_INPUT_TYPE_TUNER;
1283                 input->audioset = 1;
1284         } else {
1285                 input->type |= V4L2_INPUT_TYPE_CAMERA;
1286                 input->audioset = 2;
1287         }
1288
1289         input->std = dev->vdev->tvnorms;
1290
1291         return 0;
1292 }
1293
1294 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1295 {
1296         struct au0828_dev *dev = video_drvdata(file);
1297
1298         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1299                 dev->std_set_in_tuner_core, dev->dev_state);
1300
1301         *i = dev->ctrl_input;
1302         return 0;
1303 }
1304
1305 static void au0828_s_input(struct au0828_dev *dev, int index)
1306 {
1307         int i;
1308
1309         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1310                 dev->std_set_in_tuner_core, dev->dev_state);
1311
1312         switch (AUVI_INPUT(index).type) {
1313         case AU0828_VMUX_SVIDEO:
1314                 dev->input_type = AU0828_VMUX_SVIDEO;
1315                 dev->ctrl_ainput = 1;
1316                 break;
1317         case AU0828_VMUX_COMPOSITE:
1318                 dev->input_type = AU0828_VMUX_COMPOSITE;
1319                 dev->ctrl_ainput = 1;
1320                 break;
1321         case AU0828_VMUX_TELEVISION:
1322                 dev->input_type = AU0828_VMUX_TELEVISION;
1323                 dev->ctrl_ainput = 0;
1324                 break;
1325         default:
1326                 dprintk(1, "unknown input type set [%d]\n",
1327                         AUVI_INPUT(index).type);
1328                 break;
1329         }
1330
1331         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
1332                         AUVI_INPUT(index).vmux, 0, 0);
1333
1334         for (i = 0; i < AU0828_MAX_INPUT; i++) {
1335                 int enable = 0;
1336                 if (AUVI_INPUT(i).audio_setup == NULL)
1337                         continue;
1338
1339                 if (i == index)
1340                         enable = 1;
1341                 else
1342                         enable = 0;
1343                 if (enable) {
1344                         (AUVI_INPUT(i).audio_setup)(dev, enable);
1345                 } else {
1346                         /* Make sure we leave it turned on if some
1347                            other input is routed to this callback */
1348                         if ((AUVI_INPUT(i).audio_setup) !=
1349                             ((AUVI_INPUT(index).audio_setup))) {
1350                                 (AUVI_INPUT(i).audio_setup)(dev, enable);
1351                         }
1352                 }
1353         }
1354
1355         v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
1356                         AUVI_INPUT(index).amux, 0, 0);
1357 }
1358
1359 static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
1360 {
1361         struct au0828_dev *dev = video_drvdata(file);
1362
1363         dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
1364                 index);
1365         if (index >= AU0828_MAX_INPUT)
1366                 return -EINVAL;
1367         if (AUVI_INPUT(index).type == 0)
1368                 return -EINVAL;
1369         dev->ctrl_input = index;
1370         au0828_s_input(dev, index);
1371         return 0;
1372 }
1373
1374 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a)
1375 {
1376         if (a->index > 1)
1377                 return -EINVAL;
1378
1379         dprintk(1, "%s called\n", __func__);
1380
1381         if (a->index == 0)
1382                 strcpy(a->name, "Television");
1383         else
1384                 strcpy(a->name, "Line in");
1385
1386         a->capability = V4L2_AUDCAP_STEREO;
1387         return 0;
1388 }
1389
1390 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1391 {
1392         struct au0828_dev *dev = video_drvdata(file);
1393
1394         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1395                 dev->std_set_in_tuner_core, dev->dev_state);
1396
1397         a->index = dev->ctrl_ainput;
1398         if (a->index == 0)
1399                 strcpy(a->name, "Television");
1400         else
1401                 strcpy(a->name, "Line in");
1402
1403         a->capability = V4L2_AUDCAP_STEREO;
1404         return 0;
1405 }
1406
1407 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)
1408 {
1409         struct au0828_dev *dev = video_drvdata(file);
1410
1411         if (a->index != dev->ctrl_ainput)
1412                 return -EINVAL;
1413
1414         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1415                 dev->std_set_in_tuner_core, dev->dev_state);
1416         return 0;
1417 }
1418
1419 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1420 {
1421         struct au0828_dev *dev = video_drvdata(file);
1422
1423         if (t->index != 0)
1424                 return -EINVAL;
1425
1426         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1427                 dev->std_set_in_tuner_core, dev->dev_state);
1428
1429         strcpy(t->name, "Auvitek tuner");
1430
1431         au0828_init_tuner(dev);
1432         i2c_gate_ctrl(dev, 1);
1433         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1434         i2c_gate_ctrl(dev, 0);
1435         return 0;
1436 }
1437
1438 static int vidioc_s_tuner(struct file *file, void *priv,
1439                                 const struct v4l2_tuner *t)
1440 {
1441         struct au0828_dev *dev = video_drvdata(file);
1442
1443         if (t->index != 0)
1444                 return -EINVAL;
1445
1446         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1447                 dev->std_set_in_tuner_core, dev->dev_state);
1448
1449         au0828_init_tuner(dev);
1450         i2c_gate_ctrl(dev, 1);
1451         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1452         i2c_gate_ctrl(dev, 0);
1453
1454         dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
1455                 t->afc);
1456
1457         return 0;
1458
1459 }
1460
1461 static int vidioc_g_frequency(struct file *file, void *priv,
1462                                 struct v4l2_frequency *freq)
1463 {
1464         struct au0828_dev *dev = video_drvdata(file);
1465
1466         if (freq->tuner != 0)
1467                 return -EINVAL;
1468         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1469                 dev->std_set_in_tuner_core, dev->dev_state);
1470         freq->frequency = dev->ctrl_freq;
1471         return 0;
1472 }
1473
1474 static int vidioc_s_frequency(struct file *file, void *priv,
1475                                 const struct v4l2_frequency *freq)
1476 {
1477         struct au0828_dev *dev = video_drvdata(file);
1478         struct v4l2_frequency new_freq = *freq;
1479
1480         if (freq->tuner != 0)
1481                 return -EINVAL;
1482
1483         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1484                 dev->std_set_in_tuner_core, dev->dev_state);
1485
1486         au0828_init_tuner(dev);
1487         i2c_gate_ctrl(dev, 1);
1488
1489         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
1490         /* Get the actual set (and possibly clamped) frequency */
1491         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
1492         dev->ctrl_freq = new_freq.frequency;
1493
1494         i2c_gate_ctrl(dev, 0);
1495
1496         au0828_analog_stream_reset(dev);
1497
1498         return 0;
1499 }
1500
1501
1502 /* RAW VBI ioctls */
1503
1504 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1505                                 struct v4l2_format *format)
1506 {
1507         struct au0828_dev *dev = video_drvdata(file);
1508
1509         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1510                 dev->std_set_in_tuner_core, dev->dev_state);
1511
1512         format->fmt.vbi.samples_per_line = dev->vbi_width;
1513         format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1514         format->fmt.vbi.offset = 0;
1515         format->fmt.vbi.flags = 0;
1516         format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
1517
1518         format->fmt.vbi.count[0] = dev->vbi_height;
1519         format->fmt.vbi.count[1] = dev->vbi_height;
1520         format->fmt.vbi.start[0] = 21;
1521         format->fmt.vbi.start[1] = 284;
1522         memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
1523
1524         return 0;
1525 }
1526
1527 static int vidioc_cropcap(struct file *file, void *priv,
1528                           struct v4l2_cropcap *cc)
1529 {
1530         struct au0828_dev *dev = video_drvdata(file);
1531
1532         if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1533                 return -EINVAL;
1534
1535         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1536                 dev->std_set_in_tuner_core, dev->dev_state);
1537
1538         cc->bounds.left = 0;
1539         cc->bounds.top = 0;
1540         cc->bounds.width = dev->width;
1541         cc->bounds.height = dev->height;
1542
1543         cc->defrect = cc->bounds;
1544
1545         cc->pixelaspect.numerator = 54;
1546         cc->pixelaspect.denominator = 59;
1547
1548         return 0;
1549 }
1550
1551 #ifdef CONFIG_VIDEO_ADV_DEBUG
1552 static int vidioc_g_register(struct file *file, void *priv,
1553                              struct v4l2_dbg_register *reg)
1554 {
1555         struct au0828_dev *dev = video_drvdata(file);
1556
1557         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1558                 dev->std_set_in_tuner_core, dev->dev_state);
1559
1560         reg->val = au0828_read(dev, reg->reg);
1561         reg->size = 1;
1562         return 0;
1563 }
1564
1565 static int vidioc_s_register(struct file *file, void *priv,
1566                              const struct v4l2_dbg_register *reg)
1567 {
1568         struct au0828_dev *dev = video_drvdata(file);
1569
1570         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1571                 dev->std_set_in_tuner_core, dev->dev_state);
1572
1573         return au0828_writereg(dev, reg->reg, reg->val);
1574 }
1575 #endif
1576
1577 static int vidioc_log_status(struct file *file, void *fh)
1578 {
1579         struct video_device *vdev = video_devdata(file);
1580
1581         dprintk(1, "%s called\n", __func__);
1582
1583         v4l2_ctrl_log_status(file, fh);
1584         v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status);
1585         return 0;
1586 }
1587
1588 void au0828_v4l2_suspend(struct au0828_dev *dev)
1589 {
1590         struct urb *urb;
1591         int i;
1592
1593         pr_info("stopping V4L2\n");
1594
1595         if (dev->stream_state == STREAM_ON) {
1596                 pr_info("stopping V4L2 active URBs\n");
1597                 au0828_analog_stream_disable(dev);
1598                 /* stop urbs */
1599                 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1600                         urb = dev->isoc_ctl.urb[i];
1601                         if (urb) {
1602                                 if (!irqs_disabled())
1603                                         usb_kill_urb(urb);
1604                                 else
1605                                         usb_unlink_urb(urb);
1606                         }
1607                 }
1608         }
1609
1610         if (dev->vid_timeout_running)
1611                 del_timer_sync(&dev->vid_timeout);
1612         if (dev->vbi_timeout_running)
1613                 del_timer_sync(&dev->vbi_timeout);
1614 }
1615
1616 void au0828_v4l2_resume(struct au0828_dev *dev)
1617 {
1618         int i, rc;
1619
1620         pr_info("restarting V4L2\n");
1621
1622         if (dev->stream_state == STREAM_ON) {
1623                 au0828_stream_interrupt(dev);
1624                 au0828_init_tuner(dev);
1625         }
1626
1627         if (dev->vid_timeout_running)
1628                 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
1629         if (dev->vbi_timeout_running)
1630                 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1631
1632         /* If we were doing ac97 instead of i2s, it would go here...*/
1633         au0828_i2s_init(dev);
1634
1635         au0828_analog_stream_enable(dev);
1636
1637         if (!(dev->stream_state == STREAM_ON)) {
1638                 au0828_analog_stream_reset(dev);
1639                 /* submit urbs */
1640                 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1641                         rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
1642                         if (rc) {
1643                                 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
1644                                                i, rc);
1645                                 au0828_uninit_isoc(dev);
1646                         }
1647                 }
1648         }
1649 }
1650
1651 static struct v4l2_file_operations au0828_v4l_fops = {
1652         .owner      = THIS_MODULE,
1653         .open       = au0828_v4l2_open,
1654         .release    = au0828_v4l2_close,
1655         .read       = vb2_fop_read,
1656         .poll       = vb2_fop_poll,
1657         .mmap       = vb2_fop_mmap,
1658         .unlocked_ioctl = video_ioctl2,
1659 };
1660
1661 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1662         .vidioc_querycap            = vidioc_querycap,
1663         .vidioc_enum_fmt_vid_cap    = vidioc_enum_fmt_vid_cap,
1664         .vidioc_g_fmt_vid_cap       = vidioc_g_fmt_vid_cap,
1665         .vidioc_try_fmt_vid_cap     = vidioc_try_fmt_vid_cap,
1666         .vidioc_s_fmt_vid_cap       = vidioc_s_fmt_vid_cap,
1667         .vidioc_g_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
1668         .vidioc_try_fmt_vbi_cap     = vidioc_g_fmt_vbi_cap,
1669         .vidioc_s_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
1670         .vidioc_enumaudio           = vidioc_enumaudio,
1671         .vidioc_g_audio             = vidioc_g_audio,
1672         .vidioc_s_audio             = vidioc_s_audio,
1673         .vidioc_cropcap             = vidioc_cropcap,
1674
1675         .vidioc_reqbufs             = vb2_ioctl_reqbufs,
1676         .vidioc_create_bufs         = vb2_ioctl_create_bufs,
1677         .vidioc_prepare_buf         = vb2_ioctl_prepare_buf,
1678         .vidioc_querybuf            = vb2_ioctl_querybuf,
1679         .vidioc_qbuf                = vb2_ioctl_qbuf,
1680         .vidioc_dqbuf               = vb2_ioctl_dqbuf,
1681         .vidioc_expbuf               = vb2_ioctl_expbuf,
1682
1683         .vidioc_s_std               = vidioc_s_std,
1684         .vidioc_g_std               = vidioc_g_std,
1685         .vidioc_enum_input          = vidioc_enum_input,
1686         .vidioc_g_input             = vidioc_g_input,
1687         .vidioc_s_input             = vidioc_s_input,
1688
1689         .vidioc_streamon            = vb2_ioctl_streamon,
1690         .vidioc_streamoff           = vb2_ioctl_streamoff,
1691
1692         .vidioc_g_tuner             = vidioc_g_tuner,
1693         .vidioc_s_tuner             = vidioc_s_tuner,
1694         .vidioc_g_frequency         = vidioc_g_frequency,
1695         .vidioc_s_frequency         = vidioc_s_frequency,
1696 #ifdef CONFIG_VIDEO_ADV_DEBUG
1697         .vidioc_g_register          = vidioc_g_register,
1698         .vidioc_s_register          = vidioc_s_register,
1699 #endif
1700         .vidioc_log_status          = vidioc_log_status,
1701         .vidioc_subscribe_event     = v4l2_ctrl_subscribe_event,
1702         .vidioc_unsubscribe_event   = v4l2_event_unsubscribe,
1703 };
1704
1705 static const struct video_device au0828_video_template = {
1706         .fops                       = &au0828_v4l_fops,
1707         .release                    = video_device_release,
1708         .ioctl_ops                  = &video_ioctl_ops,
1709         .tvnorms                    = V4L2_STD_NTSC_M | V4L2_STD_PAL_M,
1710 };
1711
1712 static int au0828_vb2_setup(struct au0828_dev *dev)
1713 {
1714         int rc;
1715         struct vb2_queue *q;
1716
1717         /* Setup Videobuf2 for Video capture */
1718         q = &dev->vb_vidq;
1719         q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1720         q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1721         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1722         q->drv_priv = dev;
1723         q->buf_struct_size = sizeof(struct au0828_buffer);
1724         q->ops = &au0828_video_qops;
1725         q->mem_ops = &vb2_vmalloc_memops;
1726
1727         rc = vb2_queue_init(q);
1728         if (rc < 0)
1729                 return rc;
1730
1731         /* Setup Videobuf2 for VBI capture */
1732         q = &dev->vb_vbiq;
1733         q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1734         q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1735         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1736         q->drv_priv = dev;
1737         q->buf_struct_size = sizeof(struct au0828_buffer);
1738         q->ops = &au0828_vbi_qops;
1739         q->mem_ops = &vb2_vmalloc_memops;
1740
1741         rc = vb2_queue_init(q);
1742         if (rc < 0)
1743                 return rc;
1744
1745         return 0;
1746 }
1747
1748 /**************************************************************************/
1749
1750 int au0828_analog_register(struct au0828_dev *dev,
1751                            struct usb_interface *interface)
1752 {
1753         int retval = -ENOMEM;
1754         struct usb_host_interface *iface_desc;
1755         struct usb_endpoint_descriptor *endpoint;
1756         int i, ret;
1757
1758         dprintk(1, "au0828_analog_register called for intf#%d!\n",
1759                 interface->cur_altsetting->desc.bInterfaceNumber);
1760
1761         /* set au0828 usb interface0 to as5 */
1762         retval = usb_set_interface(dev->usbdev,
1763                         interface->cur_altsetting->desc.bInterfaceNumber, 5);
1764         if (retval != 0) {
1765                 pr_info("Failure setting usb interface0 to as5\n");
1766                 return retval;
1767         }
1768
1769         /* Figure out which endpoint has the isoc interface */
1770         iface_desc = interface->cur_altsetting;
1771         for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
1772                 endpoint = &iface_desc->endpoint[i].desc;
1773                 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1774                      == USB_DIR_IN) &&
1775                     ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1776                      == USB_ENDPOINT_XFER_ISOC)) {
1777
1778                         /* we find our isoc in endpoint */
1779                         u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
1780                         dev->max_pkt_size = (tmp & 0x07ff) *
1781                                 (((tmp & 0x1800) >> 11) + 1);
1782                         dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
1783                         dprintk(1,
1784                                 "Found isoc endpoint 0x%02x, max size = %d\n",
1785                                 dev->isoc_in_endpointaddr, dev->max_pkt_size);
1786                 }
1787         }
1788         if (!(dev->isoc_in_endpointaddr)) {
1789                 pr_info("Could not locate isoc endpoint\n");
1790                 return -ENODEV;
1791         }
1792
1793         init_waitqueue_head(&dev->open);
1794         spin_lock_init(&dev->slock);
1795
1796         /* init video dma queues */
1797         INIT_LIST_HEAD(&dev->vidq.active);
1798         INIT_LIST_HEAD(&dev->vbiq.active);
1799
1800         setup_timer(&dev->vid_timeout, au0828_vid_buffer_timeout,
1801                     (unsigned long)dev);
1802         setup_timer(&dev->vbi_timeout, au0828_vbi_buffer_timeout,
1803                     (unsigned long)dev);
1804
1805         dev->width = NTSC_STD_W;
1806         dev->height = NTSC_STD_H;
1807         dev->field_size = dev->width * dev->height;
1808         dev->frame_size = dev->field_size << 1;
1809         dev->bytesperline = dev->width << 1;
1810         dev->vbi_width = 720;
1811         dev->vbi_height = 1;
1812         dev->ctrl_ainput = 0;
1813         dev->ctrl_freq = 960;
1814         dev->std = V4L2_STD_NTSC_M;
1815         au0828_s_input(dev, 0);
1816
1817         /* allocate and fill v4l2 video struct */
1818         dev->vdev = video_device_alloc();
1819         if (NULL == dev->vdev) {
1820                 dprintk(1, "Can't allocate video_device.\n");
1821                 return -ENOMEM;
1822         }
1823
1824         /* allocate the VBI struct */
1825         dev->vbi_dev = video_device_alloc();
1826         if (NULL == dev->vbi_dev) {
1827                 dprintk(1, "Can't allocate vbi_device.\n");
1828                 ret = -ENOMEM;
1829                 goto err_vdev;
1830         }
1831
1832         mutex_init(&dev->vb_queue_lock);
1833         mutex_init(&dev->vb_vbi_queue_lock);
1834
1835         /* Fill the video capture device struct */
1836         *dev->vdev = au0828_video_template;
1837         dev->vdev->v4l2_dev = &dev->v4l2_dev;
1838         dev->vdev->lock = &dev->lock;
1839         dev->vdev->queue = &dev->vb_vidq;
1840         dev->vdev->queue->lock = &dev->vb_queue_lock;
1841         strcpy(dev->vdev->name, "au0828a video");
1842
1843         /* Setup the VBI device */
1844         *dev->vbi_dev = au0828_video_template;
1845         dev->vbi_dev->v4l2_dev = &dev->v4l2_dev;
1846         dev->vbi_dev->lock = &dev->lock;
1847         dev->vbi_dev->queue = &dev->vb_vbiq;
1848         dev->vbi_dev->queue->lock = &dev->vb_vbi_queue_lock;
1849         strcpy(dev->vbi_dev->name, "au0828a vbi");
1850
1851         /* initialize videobuf2 stuff */
1852         retval = au0828_vb2_setup(dev);
1853         if (retval != 0) {
1854                 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n",
1855                         retval);
1856                 ret = -ENODEV;
1857                 goto err_vbi_dev;
1858         }
1859
1860         /* Register the v4l2 device */
1861         video_set_drvdata(dev->vdev, dev);
1862         retval = video_register_device(dev->vdev, VFL_TYPE_GRABBER, -1);
1863         if (retval != 0) {
1864                 dprintk(1, "unable to register video device (error = %d).\n",
1865                         retval);
1866                 ret = -ENODEV;
1867                 goto err_reg_vdev;
1868         }
1869
1870         /* Register the vbi device */
1871         video_set_drvdata(dev->vbi_dev, dev);
1872         retval = video_register_device(dev->vbi_dev, VFL_TYPE_VBI, -1);
1873         if (retval != 0) {
1874                 dprintk(1, "unable to register vbi device (error = %d).\n",
1875                         retval);
1876                 ret = -ENODEV;
1877                 goto err_reg_vbi_dev;
1878         }
1879
1880         dprintk(1, "%s completed!\n", __func__);
1881
1882         return 0;
1883
1884 err_reg_vbi_dev:
1885         video_unregister_device(dev->vdev);
1886 err_reg_vdev:
1887         vb2_queue_release(&dev->vb_vidq);
1888         vb2_queue_release(&dev->vb_vbiq);
1889 err_vbi_dev:
1890         video_device_release(dev->vbi_dev);
1891 err_vdev:
1892         video_device_release(dev->vdev);
1893         return ret;
1894 }
1895