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 #include "au8522.h"
  32
  33 #include <linux/module.h>
  34 #include <linux/slab.h>
  35 #include <linux/init.h>
  36 #include <linux/device.h>
  37 #include <media/v4l2-common.h>
  38 #include <media/v4l2-mc.h>
  39 #include <media/v4l2-ioctl.h>
  40 #include <media/v4l2-event.h>
  41 #include <media/tuner.h>
  42 #include "au0828-reg.h"
  43
  44 static DEFINE_MUTEX(au0828_sysfs_lock);
  45
  46 /* ------------------------------------------------------------------
  47         Videobuf operations
  48    ------------------------------------------------------------------*/
  49
  50 static unsigned int isoc_debug;
  51 module_param(isoc_debug, int, 0644);
  52 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
  53
  54 #define au0828_isocdbg(fmt, arg...) \
  55 do {\
  56         if (isoc_debug) { \
  57                 pr_info("au0828 %s :"fmt, \
  58                        __func__ , ##arg);          \
  59         } \
  60   } while (0)
  61
  62 static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val)
  63 {
  64         if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
  65                 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val);
  66 }
  67
  68 static inline void print_err_status(struct au0828_dev *dev,
  69                                     int packet, int status)
  70 {
  71         char *errmsg = "Unknown";
  72
  73         switch (status) {
  74         case -ENOENT:
  75                 errmsg = "unlinked synchronuously";
  76                 break;
  77         case -ECONNRESET:
  78                 errmsg = "unlinked asynchronuously";
  79                 break;
  80         case -ENOSR:
  81                 errmsg = "Buffer error (overrun)";
  82                 break;
  83         case -EPIPE:
  84                 errmsg = "Stalled (device not responding)";
  85                 break;
  86         case -EOVERFLOW:
  87                 errmsg = "Babble (bad cable?)";
  88                 break;
  89         case -EPROTO:
  90                 errmsg = "Bit-stuff error (bad cable?)";
  91                 break;
  92         case -EILSEQ:
  93                 errmsg = "CRC/Timeout (could be anything)";
  94                 break;
  95         case -ETIME:
  96                 errmsg = "Device does not respond";
  97                 break;
  98         }
  99         if (packet < 0) {
 100                 au0828_isocdbg("URB status %d [%s].\n", status, errmsg);
 101         } else {
 102                 au0828_isocdbg("URB packet %d, status %d [%s].\n",
 103                                packet, status, errmsg);
 104         }
 105 }
 106
 107 static int check_dev(struct au0828_dev *dev)
 108 {
 109         if (dev->dev_state & DEV_DISCONNECTED) {
 110                 pr_info("v4l2 ioctl: device not present\n");
 111                 return -ENODEV;
 112         }
 113
 114         if (dev->dev_state & DEV_MISCONFIGURED) {
 115                 pr_info("v4l2 ioctl: device is misconfigured; "
 116                        "close and open it again\n");
 117                 return -EIO;
 118         }
 119         return 0;
 120 }
 121
 122 /*
 123  * IRQ callback, called by URB callback
 124  */
 125 static void au0828_irq_callback(struct urb *urb)
 126 {
 127         struct au0828_dmaqueue  *dma_q = urb->context;
 128         struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
 129         unsigned long flags = 0;
 130         int i;
 131
 132         switch (urb->status) {
 133         case 0:             /* success */
 134         case -ETIMEDOUT:    /* NAK */
 135                 break;
 136         case -ECONNRESET:   /* kill */
 137         case -ENOENT:
 138         case -ESHUTDOWN:
 139                 au0828_isocdbg("au0828_irq_callback called: status kill\n");
 140                 return;
 141         default:            /* unknown error */
 142                 au0828_isocdbg("urb completition error %d.\n", urb->status);
 143                 break;
 144         }
 145
 146         /* Copy data from URB */
 147         spin_lock_irqsave(&dev->slock, flags);
 148         dev->isoc_ctl.isoc_copy(dev, urb);
 149         spin_unlock_irqrestore(&dev->slock, flags);
 150
 151         /* Reset urb buffers */
 152         for (i = 0; i < urb->number_of_packets; i++) {
 153                 urb->iso_frame_desc[i].status = 0;
 154                 urb->iso_frame_desc[i].actual_length = 0;
 155         }
 156         urb->status = 0;
 157
 158         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 159         if (urb->status) {
 160                 au0828_isocdbg("urb resubmit failed (error=%i)\n",
 161                                urb->status);
 162         }
 163         dev->stream_state = STREAM_ON;
 164 }
 165
 166 /*
 167  * Stop and Deallocate URBs
 168  */
 169 static void au0828_uninit_isoc(struct au0828_dev *dev)
 170 {
 171         struct urb *urb;
 172         int i;
 173
 174         au0828_isocdbg("au0828: called au0828_uninit_isoc\n");
 175
 176         dev->isoc_ctl.nfields = -1;
 177         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 178                 urb = dev->isoc_ctl.urb[i];
 179                 if (urb) {
 180                         if (!irqs_disabled())
 181                                 usb_kill_urb(urb);
 182                         else
 183                                 usb_unlink_urb(urb);
 184
 185                         if (dev->isoc_ctl.transfer_buffer[i]) {
 186                                 usb_free_coherent(dev->usbdev,
 187                                         urb->transfer_buffer_length,
 188                                         dev->isoc_ctl.transfer_buffer[i],
 189                                         urb->transfer_dma);
 190                         }
 191                         usb_free_urb(urb);
 192                         dev->isoc_ctl.urb[i] = NULL;
 193                 }
 194                 dev->isoc_ctl.transfer_buffer[i] = NULL;
 195         }
 196
 197         kfree(dev->isoc_ctl.urb);
 198         kfree(dev->isoc_ctl.transfer_buffer);
 199
 200         dev->isoc_ctl.urb = NULL;
 201         dev->isoc_ctl.transfer_buffer = NULL;
 202         dev->isoc_ctl.num_bufs = 0;
 203
 204         dev->stream_state = STREAM_OFF;
 205 }
 206
 207 /*
 208  * Allocate URBs and start IRQ
 209  */
 210 static int au0828_init_isoc(struct au0828_dev *dev, int max_packets,
 211                             int num_bufs, int max_pkt_size,
 212                             int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb))
 213 {
 214         struct au0828_dmaqueue *dma_q = &dev->vidq;
 215         int i;
 216         int sb_size, pipe;
 217         struct urb *urb;
 218         int j, k;
 219         int rc;
 220
 221         au0828_isocdbg("au0828: called au0828_prepare_isoc\n");
 222
 223         dev->isoc_ctl.isoc_copy = isoc_copy;
 224         dev->isoc_ctl.num_bufs = num_bufs;
 225
 226         dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs,  GFP_KERNEL);
 227         if (!dev->isoc_ctl.urb) {
 228                 au0828_isocdbg("cannot alloc memory for usb buffers\n");
 229                 return -ENOMEM;
 230         }
 231
 232         dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs,
 233                                               GFP_KERNEL);
 234         if (!dev->isoc_ctl.transfer_buffer) {
 235                 au0828_isocdbg("cannot allocate memory for usb transfer\n");
 236                 kfree(dev->isoc_ctl.urb);
 237                 return -ENOMEM;
 238         }
 239
 240         dev->isoc_ctl.max_pkt_size = max_pkt_size;
 241         dev->isoc_ctl.buf = NULL;
 242
 243         sb_size = max_packets * dev->isoc_ctl.max_pkt_size;
 244
 245         /* allocate urbs and transfer buffers */
 246         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 247                 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
 248                 if (!urb) {
 249                         au0828_isocdbg("cannot alloc isoc_ctl.urb %i\n", i);
 250                         au0828_uninit_isoc(dev);
 251                         return -ENOMEM;
 252                 }
 253                 dev->isoc_ctl.urb[i] = urb;
 254
 255                 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev,
 256                         sb_size, GFP_KERNEL, &urb->transfer_dma);
 257                 if (!dev->isoc_ctl.transfer_buffer[i]) {
 258                         printk("unable to allocate %i bytes for transfer"
 259                                         " buffer %i%s\n",
 260                                         sb_size, i,
 261                                         in_interrupt() ? " while in int" : "");
 262                         au0828_uninit_isoc(dev);
 263                         return -ENOMEM;
 264                 }
 265                 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
 266
 267                 pipe = usb_rcvisocpipe(dev->usbdev,
 268                                        dev->isoc_in_endpointaddr),
 269
 270                 usb_fill_int_urb(urb, dev->usbdev, pipe,
 271                                  dev->isoc_ctl.transfer_buffer[i], sb_size,
 272                                  au0828_irq_callback, dma_q, 1);
 273
 274                 urb->number_of_packets = max_packets;
 275                 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
 276
 277                 k = 0;
 278                 for (j = 0; j < max_packets; j++) {
 279                         urb->iso_frame_desc[j].offset = k;
 280                         urb->iso_frame_desc[j].length =
 281                                                 dev->isoc_ctl.max_pkt_size;
 282                         k += dev->isoc_ctl.max_pkt_size;
 283                 }
 284         }
 285
 286         /* submit urbs and enables IRQ */
 287         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 288                 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
 289                 if (rc) {
 290                         au0828_isocdbg("submit of urb %i failed (error=%i)\n",
 291                                        i, rc);
 292                         au0828_uninit_isoc(dev);
 293                         return rc;
 294                 }
 295         }
 296
 297         return 0;
 298 }
 299
 300 /*
 301  * Announces that a buffer were filled and request the next
 302  */
 303 static inline void buffer_filled(struct au0828_dev *dev,
 304                                  struct au0828_dmaqueue *dma_q,
 305                                  struct au0828_buffer *buf)
 306 {
 307         struct vb2_v4l2_buffer *vb = &buf->vb;
 308         struct vb2_queue *q = vb->vb2_buf.vb2_queue;
 309
 310         /* Advice that buffer was filled */
 311         au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field);
 312
 313         if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 314                 vb->sequence = dev->frame_count++;
 315         else
 316                 vb->sequence = dev->vbi_frame_count++;
 317
 318         vb->field = V4L2_FIELD_INTERLACED;
 319         vb->vb2_buf.timestamp = ktime_get_ns();
 320         vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE);
 321 }
 322
 323 /*
 324  * Identify the buffer header type and properly handles
 325  */
 326 static void au0828_copy_video(struct au0828_dev *dev,
 327                               struct au0828_dmaqueue  *dma_q,
 328                               struct au0828_buffer *buf,
 329                               unsigned char *p,
 330                               unsigned char *outp, unsigned long len)
 331 {
 332         void *fieldstart, *startwrite, *startread;
 333         int  linesdone, currlinedone, offset, lencopy, remain;
 334         int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */
 335
 336         if (len == 0)
 337                 return;
 338
 339         if (dma_q->pos + len > buf->length)
 340                 len = buf->length - dma_q->pos;
 341
 342         startread = p;
 343         remain = len;
 344
 345         /* Interlaces frame */
 346         if (buf->top_field)
 347                 fieldstart = outp;
 348         else
 349                 fieldstart = outp + bytesperline;
 350
 351         linesdone = dma_q->pos / bytesperline;
 352         currlinedone = dma_q->pos % bytesperline;
 353         offset = linesdone * bytesperline * 2 + currlinedone;
 354         startwrite = fieldstart + offset;
 355         lencopy = bytesperline - currlinedone;
 356         lencopy = lencopy > remain ? remain : lencopy;
 357
 358         if ((char *)startwrite + lencopy > (char *)outp + buf->length) {
 359                 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
 360                                ((char *)startwrite + lencopy) -
 361                                ((char *)outp + buf->length));
 362                 remain = (char *)outp + buf->length - (char *)startwrite;
 363                 lencopy = remain;
 364         }
 365         if (lencopy <= 0)
 366                 return;
 367         memcpy(startwrite, startread, lencopy);
 368
 369         remain -= lencopy;
 370
 371         while (remain > 0) {
 372                 startwrite += lencopy + bytesperline;
 373                 startread += lencopy;
 374                 if (bytesperline > remain)
 375                         lencopy = remain;
 376                 else
 377                         lencopy = bytesperline;
 378
 379                 if ((char *)startwrite + lencopy > (char *)outp +
 380                     buf->length) {
 381                         au0828_isocdbg("Overflow %zi bytes past buf end (2)\n",
 382                                        ((char *)startwrite + lencopy) -
 383                                        ((char *)outp + buf->length));
 384                         lencopy = remain = (char *)outp + buf->length -
 385                                            (char *)startwrite;
 386                 }
 387                 if (lencopy <= 0)
 388                         break;
 389
 390                 memcpy(startwrite, startread, lencopy);
 391
 392                 remain -= lencopy;
 393         }
 394
 395         if (offset > 1440) {
 396                 /* We have enough data to check for greenscreen */
 397                 if (outp[0] < 0x60 && outp[1440] < 0x60)
 398                         dev->greenscreen_detected = 1;
 399         }
 400
 401         dma_q->pos += len;
 402 }
 403
 404 /*
 405  * video-buf generic routine to get the next available buffer
 406  */
 407 static inline void get_next_buf(struct au0828_dmaqueue *dma_q,
 408                                 struct au0828_buffer **buf)
 409 {
 410         struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
 411
 412         if (list_empty(&dma_q->active)) {
 413                 au0828_isocdbg("No active queue to serve\n");
 414                 dev->isoc_ctl.buf = NULL;
 415                 *buf = NULL;
 416                 return;
 417         }
 418
 419         /* Get the next buffer */
 420         *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
 421         /* Cleans up buffer - Useful for testing for frame/URB loss */
 422         list_del(&(*buf)->list);
 423         dma_q->pos = 0;
 424         (*buf)->vb_buf = (*buf)->mem;
 425         dev->isoc_ctl.buf = *buf;
 426
 427         return;
 428 }
 429
 430 static void au0828_copy_vbi(struct au0828_dev *dev,
 431                               struct au0828_dmaqueue  *dma_q,
 432                               struct au0828_buffer *buf,
 433                               unsigned char *p,
 434                               unsigned char *outp, unsigned long len)
 435 {
 436         unsigned char *startwrite, *startread;
 437         int bytesperline;
 438         int i, j = 0;
 439
 440         if (dev == NULL) {
 441                 au0828_isocdbg("dev is null\n");
 442                 return;
 443         }
 444
 445         if (dma_q == NULL) {
 446                 au0828_isocdbg("dma_q is null\n");
 447                 return;
 448         }
 449         if (buf == NULL)
 450                 return;
 451         if (p == NULL) {
 452                 au0828_isocdbg("p is null\n");
 453                 return;
 454         }
 455         if (outp == NULL) {
 456                 au0828_isocdbg("outp is null\n");
 457                 return;
 458         }
 459
 460         bytesperline = dev->vbi_width;
 461
 462         if (dma_q->pos + len > buf->length)
 463                 len = buf->length - dma_q->pos;
 464
 465         startread = p;
 466         startwrite = outp + (dma_q->pos / 2);
 467
 468         /* Make sure the bottom field populates the second half of the frame */
 469         if (buf->top_field == 0)
 470                 startwrite += bytesperline * dev->vbi_height;
 471
 472         for (i = 0; i < len; i += 2)
 473                 startwrite[j++] = startread[i+1];
 474
 475         dma_q->pos += len;
 476 }
 477
 478
 479 /*
 480  * video-buf generic routine to get the next available VBI buffer
 481  */
 482 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q,
 483                                     struct au0828_buffer **buf)
 484 {
 485         struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq);
 486
 487         if (list_empty(&dma_q->active)) {
 488                 au0828_isocdbg("No active queue to serve\n");
 489                 dev->isoc_ctl.vbi_buf = NULL;
 490                 *buf = NULL;
 491                 return;
 492         }
 493
 494         /* Get the next buffer */
 495         *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
 496         /* Cleans up buffer - Useful for testing for frame/URB loss */
 497         list_del(&(*buf)->list);
 498         dma_q->pos = 0;
 499         (*buf)->vb_buf = (*buf)->mem;
 500         dev->isoc_ctl.vbi_buf = *buf;
 501         return;
 502 }
 503
 504 /*
 505  * Controls the isoc copy of each urb packet
 506  */
 507 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
 508 {
 509         struct au0828_buffer    *buf;
 510         struct au0828_buffer    *vbi_buf;
 511         struct au0828_dmaqueue  *dma_q = urb->context;
 512         struct au0828_dmaqueue  *vbi_dma_q = &dev->vbiq;
 513         unsigned char *outp = NULL;
 514         unsigned char *vbioutp = NULL;
 515         int i, len = 0, rc = 1;
 516         unsigned char *p;
 517         unsigned char fbyte;
 518         unsigned int vbi_field_size;
 519         unsigned int remain, lencopy;
 520
 521         if (!dev)
 522                 return 0;
 523
 524         if ((dev->dev_state & DEV_DISCONNECTED) ||
 525             (dev->dev_state & DEV_MISCONFIGURED))
 526                 return 0;
 527
 528         if (urb->status < 0) {
 529                 print_err_status(dev, -1, urb->status);
 530                 if (urb->status == -ENOENT)
 531                         return 0;
 532         }
 533
 534         buf = dev->isoc_ctl.buf;
 535         if (buf != NULL)
 536                 outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
 537
 538         vbi_buf = dev->isoc_ctl.vbi_buf;
 539         if (vbi_buf != NULL)
 540                 vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0);
 541
 542         for (i = 0; i < urb->number_of_packets; i++) {
 543                 int status = urb->iso_frame_desc[i].status;
 544
 545                 if (status < 0) {
 546                         print_err_status(dev, i, status);
 547                         if (urb->iso_frame_desc[i].status != -EPROTO)
 548                                 continue;
 549                 }
 550
 551                 if (urb->iso_frame_desc[i].actual_length <= 0)
 552                         continue;
 553
 554                 if (urb->iso_frame_desc[i].actual_length >
 555                                                 dev->max_pkt_size) {
 556                         au0828_isocdbg("packet bigger than packet size");
 557                         continue;
 558                 }
 559
 560                 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
 561                 fbyte = p[0];
 562                 len = urb->iso_frame_desc[i].actual_length - 4;
 563                 p += 4;
 564
 565                 if (fbyte & 0x80) {
 566                         len -= 4;
 567                         p += 4;
 568                         au0828_isocdbg("Video frame %s\n",
 569                                        (fbyte & 0x40) ? "odd" : "even");
 570                         if (fbyte & 0x40) {
 571                                 /* VBI */
 572                                 if (vbi_buf != NULL)
 573                                         buffer_filled(dev, vbi_dma_q, vbi_buf);
 574                                 vbi_get_next_buf(vbi_dma_q, &vbi_buf);
 575                                 if (vbi_buf == NULL)
 576                                         vbioutp = NULL;
 577                                 else
 578                                         vbioutp = vb2_plane_vaddr(
 579                                                 &vbi_buf->vb.vb2_buf, 0);
 580
 581                                 /* Video */
 582                                 if (buf != NULL)
 583                                         buffer_filled(dev, dma_q, buf);
 584                                 get_next_buf(dma_q, &buf);
 585                                 if (buf == NULL)
 586                                         outp = NULL;
 587                                 else
 588                                         outp = vb2_plane_vaddr(
 589                                                 &buf->vb.vb2_buf, 0);
 590
 591                                 /* As long as isoc traffic is arriving, keep
 592                                    resetting the timer */
 593                                 if (dev->vid_timeout_running)
 594                                         mod_timer(&dev->vid_timeout,
 595                                                   jiffies + (HZ / 10));
 596                                 if (dev->vbi_timeout_running)
 597                                         mod_timer(&dev->vbi_timeout,
 598                                                   jiffies + (HZ / 10));
 599                         }
 600
 601                         if (buf != NULL) {
 602                                 if (fbyte & 0x40)
 603                                         buf->top_field = 1;
 604                                 else
 605                                         buf->top_field = 0;
 606                         }
 607
 608                         if (vbi_buf != NULL) {
 609                                 if (fbyte & 0x40)
 610                                         vbi_buf->top_field = 1;
 611                                 else
 612                                         vbi_buf->top_field = 0;
 613                         }
 614
 615                         dev->vbi_read = 0;
 616                         vbi_dma_q->pos = 0;
 617                         dma_q->pos = 0;
 618                 }
 619
 620                 vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
 621                 if (dev->vbi_read < vbi_field_size) {
 622                         remain  = vbi_field_size - dev->vbi_read;
 623                         if (len < remain)
 624                                 lencopy = len;
 625                         else
 626                                 lencopy = remain;
 627
 628                         if (vbi_buf != NULL)
 629                                 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
 630                                                 vbioutp, len);
 631
 632                         len -= lencopy;
 633                         p += lencopy;
 634                         dev->vbi_read += lencopy;
 635                 }
 636
 637                 if (dev->vbi_read >= vbi_field_size && buf != NULL)
 638                         au0828_copy_video(dev, dma_q, buf, p, outp, len);
 639         }
 640         return rc;
 641 }
 642
 643 void au0828_usb_v4l2_media_release(struct au0828_dev *dev)
 644 {
 645 #ifdef CONFIG_MEDIA_CONTROLLER
 646         int i;
 647
 648         for (i = 0; i < AU0828_MAX_INPUT; i++) {
 649                 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
 650                         return;
 651                 media_device_unregister_entity(&dev->input_ent[i]);
 652         }
 653 #endif
 654 }
 655
 656 static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev)
 657 {
 658         struct au0828_dev *dev =
 659                 container_of(v4l2_dev, struct au0828_dev, v4l2_dev);
 660
 661         v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl);
 662         v4l2_device_unregister(&dev->v4l2_dev);
 663         au0828_usb_v4l2_media_release(dev);
 664         au0828_usb_release(dev);
 665 }
 666
 667 int au0828_v4l2_device_register(struct usb_interface *interface,
 668                                 struct au0828_dev *dev)
 669 {
 670         int retval;
 671
 672         if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
 673                 return 0;
 674
 675         /* Create the v4l2_device */
 676 #ifdef CONFIG_MEDIA_CONTROLLER
 677         dev->v4l2_dev.mdev = dev->media_dev;
 678 #endif
 679         retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
 680         if (retval) {
 681                 pr_err("%s() v4l2_device_register failed\n",
 682                        __func__);
 683                 mutex_unlock(&dev->lock);
 684                 kfree(dev);
 685                 return retval;
 686         }
 687
 688         dev->v4l2_dev.release = au0828_usb_v4l2_release;
 689
 690         /* This control handler will inherit the controls from au8522 */
 691         retval = v4l2_ctrl_handler_init(&dev->v4l2_ctrl_hdl, 4);
 692         if (retval) {
 693                 pr_err("%s() v4l2_ctrl_handler_init failed\n",
 694                        __func__);
 695                 mutex_unlock(&dev->lock);
 696                 kfree(dev);
 697                 return retval;
 698         }
 699         dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl;
 700
 701         return 0;
 702 }
 703
 704 static int queue_setup(struct vb2_queue *vq,
 705                        unsigned int *nbuffers, unsigned int *nplanes,
 706                        unsigned int sizes[], void *alloc_ctxs[])
 707 {
 708         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 709         unsigned long size = dev->height * dev->bytesperline;
 710
 711         if (*nplanes)
 712                 return sizes[0] < size ? -EINVAL : 0;
 713         *nplanes = 1;
 714         sizes[0] = size;
 715         return 0;
 716 }
 717
 718 static int
 719 buffer_prepare(struct vb2_buffer *vb)
 720 {
 721         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 722         struct au0828_buffer *buf = container_of(vbuf,
 723                                 struct au0828_buffer, vb);
 724         struct au0828_dev    *dev = vb2_get_drv_priv(vb->vb2_queue);
 725
 726         buf->length = dev->height * dev->bytesperline;
 727
 728         if (vb2_plane_size(vb, 0) < buf->length) {
 729                 pr_err("%s data will not fit into plane (%lu < %lu)\n",
 730                         __func__, vb2_plane_size(vb, 0), buf->length);
 731                 return -EINVAL;
 732         }
 733         vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length);
 734         return 0;
 735 }
 736
 737 static void
 738 buffer_queue(struct vb2_buffer *vb)
 739 {
 740         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 741         struct au0828_buffer    *buf     = container_of(vbuf,
 742                                                         struct au0828_buffer,
 743                                                         vb);
 744         struct au0828_dev       *dev     = vb2_get_drv_priv(vb->vb2_queue);
 745         struct au0828_dmaqueue  *vidq    = &dev->vidq;
 746         unsigned long flags = 0;
 747
 748         buf->mem = vb2_plane_vaddr(vb, 0);
 749         buf->length = vb2_plane_size(vb, 0);
 750
 751         spin_lock_irqsave(&dev->slock, flags);
 752         list_add_tail(&buf->list, &vidq->active);
 753         spin_unlock_irqrestore(&dev->slock, flags);
 754 }
 755
 756 static int au0828_i2s_init(struct au0828_dev *dev)
 757 {
 758         /* Enable i2s mode */
 759         au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
 760         return 0;
 761 }
 762
 763 /*
 764  * Auvitek au0828 analog stream enable
 765  */
 766 static int au0828_analog_stream_enable(struct au0828_dev *d)
 767 {
 768         struct usb_interface *iface;
 769         int ret, h, w;
 770
 771         dprintk(1, "au0828_analog_stream_enable called\n");
 772
 773         iface = usb_ifnum_to_if(d->usbdev, 0);
 774         if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) {
 775                 dprintk(1, "Changing intf#0 to alt 5\n");
 776                 /* set au0828 interface0 to AS5 here again */
 777                 ret = usb_set_interface(d->usbdev, 0, 5);
 778                 if (ret < 0) {
 779                         pr_info("Au0828 can't set alt setting to 5!\n");
 780                         return -EBUSY;
 781                 }
 782         }
 783
 784         h = d->height / 2 + 2;
 785         w = d->width * 2;
 786
 787         au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
 788         au0828_writereg(d, 0x106, 0x00);
 789         /* set x position */
 790         au0828_writereg(d, 0x110, 0x00);
 791         au0828_writereg(d, 0x111, 0x00);
 792         au0828_writereg(d, 0x114, w & 0xff);
 793         au0828_writereg(d, 0x115, w >> 8);
 794         /* set y position */
 795         au0828_writereg(d, 0x112, 0x00);
 796         au0828_writereg(d, 0x113, 0x00);
 797         au0828_writereg(d, 0x116, h & 0xff);
 798         au0828_writereg(d, 0x117, h >> 8);
 799         au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
 800
 801         return 0;
 802 }
 803
 804 static int au0828_analog_stream_disable(struct au0828_dev *d)
 805 {
 806         dprintk(1, "au0828_analog_stream_disable called\n");
 807         au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
 808         return 0;
 809 }
 810
 811 static void au0828_analog_stream_reset(struct au0828_dev *dev)
 812 {
 813         dprintk(1, "au0828_analog_stream_reset called\n");
 814         au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
 815         mdelay(30);
 816         au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
 817 }
 818
 819 /*
 820  * Some operations needs to stop current streaming
 821  */
 822 static int au0828_stream_interrupt(struct au0828_dev *dev)
 823 {
 824         int ret = 0;
 825
 826         dev->stream_state = STREAM_INTERRUPT;
 827         if (dev->dev_state == DEV_DISCONNECTED)
 828                 return -ENODEV;
 829         else if (ret) {
 830                 dev->dev_state = DEV_MISCONFIGURED;
 831                 dprintk(1, "%s device is misconfigured!\n", __func__);
 832                 return ret;
 833         }
 834         return 0;
 835 }
 836
 837 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
 838 {
 839         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 840         int rc = 0;
 841
 842         dprintk(1, "au0828_start_analog_streaming called %d\n",
 843                 dev->streaming_users);
 844
 845         if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 846                 dev->frame_count = 0;
 847         else
 848                 dev->vbi_frame_count = 0;
 849
 850         if (dev->streaming_users == 0) {
 851                 /* If we were doing ac97 instead of i2s, it would go here...*/
 852                 au0828_i2s_init(dev);
 853                 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
 854                                    AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
 855                                    au0828_isoc_copy);
 856                 if (rc < 0) {
 857                         pr_info("au0828_init_isoc failed\n");
 858                         return rc;
 859                 }
 860
 861                 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 862                         v4l2_device_call_all(&dev->v4l2_dev, 0, video,
 863                                                 s_stream, 1);
 864                         dev->vid_timeout_running = 1;
 865                         mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
 866                 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
 867                         dev->vbi_timeout_running = 1;
 868                         mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
 869                 }
 870         }
 871         dev->streaming_users++;
 872         return rc;
 873 }
 874
 875 static void au0828_stop_streaming(struct vb2_queue *vq)
 876 {
 877         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 878         struct au0828_dmaqueue *vidq = &dev->vidq;
 879         unsigned long flags = 0;
 880
 881         dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users);
 882
 883         if (dev->streaming_users-- == 1)
 884                 au0828_uninit_isoc(dev);
 885
 886         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
 887         dev->vid_timeout_running = 0;
 888         del_timer_sync(&dev->vid_timeout);
 889
 890         spin_lock_irqsave(&dev->slock, flags);
 891         if (dev->isoc_ctl.buf != NULL) {
 892                 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf,
 893                                 VB2_BUF_STATE_ERROR);
 894                 dev->isoc_ctl.buf = NULL;
 895         }
 896         while (!list_empty(&vidq->active)) {
 897                 struct au0828_buffer *buf;
 898
 899                 buf = list_entry(vidq->active.next, struct au0828_buffer, list);
 900                 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 901                 list_del(&buf->list);
 902         }
 903         spin_unlock_irqrestore(&dev->slock, flags);
 904 }
 905
 906 void au0828_stop_vbi_streaming(struct vb2_queue *vq)
 907 {
 908         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 909         struct au0828_dmaqueue *vbiq = &dev->vbiq;
 910         unsigned long flags = 0;
 911
 912         dprintk(1, "au0828_stop_vbi_streaming called %d\n",
 913                 dev->streaming_users);
 914
 915         if (dev->streaming_users-- == 1)
 916                 au0828_uninit_isoc(dev);
 917
 918         spin_lock_irqsave(&dev->slock, flags);
 919         if (dev->isoc_ctl.vbi_buf != NULL) {
 920                 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf,
 921                                 VB2_BUF_STATE_ERROR);
 922                 dev->isoc_ctl.vbi_buf = NULL;
 923         }
 924         while (!list_empty(&vbiq->active)) {
 925                 struct au0828_buffer *buf;
 926
 927                 buf = list_entry(vbiq->active.next, struct au0828_buffer, list);
 928                 list_del(&buf->list);
 929                 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 930         }
 931         spin_unlock_irqrestore(&dev->slock, flags);
 932
 933         dev->vbi_timeout_running = 0;
 934         del_timer_sync(&dev->vbi_timeout);
 935 }
 936
 937 static struct vb2_ops au0828_video_qops = {
 938         .queue_setup     = queue_setup,
 939         .buf_prepare     = buffer_prepare,
 940         .buf_queue       = buffer_queue,
 941         .start_streaming = au0828_start_analog_streaming,
 942         .stop_streaming  = au0828_stop_streaming,
 943         .wait_prepare    = vb2_ops_wait_prepare,
 944         .wait_finish     = vb2_ops_wait_finish,
 945 };
 946
 947 /* ------------------------------------------------------------------
 948    V4L2 interface
 949    ------------------------------------------------------------------*/
 950 /*
 951  * au0828_analog_unregister
 952  * unregister v4l2 devices
 953  */
 954 int au0828_analog_unregister(struct au0828_dev *dev)
 955 {
 956         dprintk(1, "au0828_analog_unregister called\n");
 957
 958         /* No analog TV */
 959         if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
 960                 return 0;
 961
 962         mutex_lock(&au0828_sysfs_lock);
 963         video_unregister_device(&dev->vdev);
 964         video_unregister_device(&dev->vbi_dev);
 965         mutex_unlock(&au0828_sysfs_lock);
 966
 967         v4l2_device_disconnect(&dev->v4l2_dev);
 968         v4l2_device_put(&dev->v4l2_dev);
 969
 970         return 1;
 971 }
 972
 973 /* This function ensures that video frames continue to be delivered even if
 974    the ITU-656 input isn't receiving any data (thereby preventing applications
 975    such as tvtime from hanging) */
 976 static void au0828_vid_buffer_timeout(unsigned long data)
 977 {
 978         struct au0828_dev *dev = (struct au0828_dev *) data;
 979         struct au0828_dmaqueue *dma_q = &dev->vidq;
 980         struct au0828_buffer *buf;
 981         unsigned char *vid_data;
 982         unsigned long flags = 0;
 983
 984         spin_lock_irqsave(&dev->slock, flags);
 985
 986         buf = dev->isoc_ctl.buf;
 987         if (buf != NULL) {
 988                 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
 989                 memset(vid_data, 0x00, buf->length); /* Blank green frame */
 990                 buffer_filled(dev, dma_q, buf);
 991         }
 992         get_next_buf(dma_q, &buf);
 993
 994         if (dev->vid_timeout_running == 1)
 995                 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
 996
 997         spin_unlock_irqrestore(&dev->slock, flags);
 998 }
 999
1000 static void au0828_vbi_buffer_timeout(unsigned long data)
1001 {
1002         struct au0828_dev *dev = (struct au0828_dev *) data;
1003         struct au0828_dmaqueue *dma_q = &dev->vbiq;
1004         struct au0828_buffer *buf;
1005         unsigned char *vbi_data;
1006         unsigned long flags = 0;
1007
1008         spin_lock_irqsave(&dev->slock, flags);
1009
1010         buf = dev->isoc_ctl.vbi_buf;
1011         if (buf != NULL) {
1012                 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
1013                 memset(vbi_data, 0x00, buf->length);
1014                 buffer_filled(dev, dma_q, buf);
1015         }
1016         vbi_get_next_buf(dma_q, &buf);
1017
1018         if (dev->vbi_timeout_running == 1)
1019                 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1020         spin_unlock_irqrestore(&dev->slock, flags);
1021 }
1022
1023 static int au0828_v4l2_open(struct file *filp)
1024 {
1025         struct au0828_dev *dev = video_drvdata(filp);
1026         int ret;
1027
1028         dprintk(1,
1029                 "%s called std_set %d dev_state %d stream users %d users %d\n",
1030                 __func__, dev->std_set_in_tuner_core, dev->dev_state,
1031                 dev->streaming_users, dev->users);
1032
1033         if (mutex_lock_interruptible(&dev->lock))
1034                 return -ERESTARTSYS;
1035
1036         ret = v4l2_fh_open(filp);
1037         if (ret) {
1038                 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n",
1039                                 __func__, ret);
1040                 mutex_unlock(&dev->lock);
1041                 return ret;
1042         }
1043
1044         if (dev->users == 0) {
1045                 au0828_analog_stream_enable(dev);
1046                 au0828_analog_stream_reset(dev);
1047                 dev->stream_state = STREAM_OFF;
1048                 dev->dev_state |= DEV_INITIALIZED;
1049         }
1050         dev->users++;
1051         mutex_unlock(&dev->lock);
1052         return ret;
1053 }
1054
1055 static int au0828_v4l2_close(struct file *filp)
1056 {
1057         int ret;
1058         struct au0828_dev *dev = video_drvdata(filp);
1059         struct video_device *vdev = video_devdata(filp);
1060
1061         dprintk(1,
1062                 "%s called std_set %d dev_state %d stream users %d users %d\n",
1063                 __func__, dev->std_set_in_tuner_core, dev->dev_state,
1064                 dev->streaming_users, dev->users);
1065
1066         mutex_lock(&dev->lock);
1067         if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) {
1068                 /* Cancel timeout thread in case they didn't call streamoff */
1069                 dev->vid_timeout_running = 0;
1070                 del_timer_sync(&dev->vid_timeout);
1071         } else if (vdev->vfl_type == VFL_TYPE_VBI &&
1072                         dev->vbi_timeout_running) {
1073                 /* Cancel timeout thread in case they didn't call streamoff */
1074                 dev->vbi_timeout_running = 0;
1075                 del_timer_sync(&dev->vbi_timeout);
1076         }
1077
1078         if (dev->dev_state == DEV_DISCONNECTED)
1079                 goto end;
1080
1081         if (dev->users == 1) {
1082                 /*
1083                  * Avoid putting tuner in sleep if DVB or ALSA are
1084                  * streaming.
1085                  *
1086                  * On most USB devices  like au0828 the tuner can
1087                  * be safely put in sleep stare here if ALSA isn't
1088                  * streaming. Exceptions are some very old USB tuner
1089                  * models such as em28xx-based WinTV USB2 which have
1090                  * a separate audio output jack. The devices that have
1091                  * a separate audio output jack have analog tuners,
1092                  * like Philips FM1236. Those devices are always on,
1093                  * so the s_power callback are silently ignored.
1094                  * So, the current logic here does the following:
1095                  * Disable (put tuner to sleep) when
1096                  * - ALSA and DVB aren't not streaming;
1097                  * - the last V4L2 file handler is closed.
1098                  *
1099                  * FIXME:
1100                  *
1101                  * Additionally, this logic could be improved to
1102                  * disable the media source if the above conditions
1103                  * are met and if the device:
1104                  * - doesn't have a separate audio out plug (or
1105                  * - doesn't use a silicon tuner like xc2028/3028/4000/5000).
1106                  *
1107                  * Once this additional logic is in place, a callback
1108                  * is needed to enable the media source and power on
1109                  * the tuner, for radio to work.
1110                 */
1111                 ret = v4l_enable_media_source(vdev);
1112                 if (ret == 0)
1113                         v4l2_device_call_all(&dev->v4l2_dev, 0, core,
1114                                              s_power, 0);
1115                 dev->std_set_in_tuner_core = 0;
1116
1117                 /* When close the device, set the usb intf0 into alt0 to free
1118                    USB bandwidth */
1119                 ret = usb_set_interface(dev->usbdev, 0, 0);
1120                 if (ret < 0)
1121                         pr_info("Au0828 can't set alternate to 0!\n");
1122         }
1123 end:
1124         _vb2_fop_release(filp, NULL);
1125         dev->users--;
1126         mutex_unlock(&dev->lock);
1127         return 0;
1128 }
1129
1130 /* Must be called with dev->lock held */
1131 static void au0828_init_tuner(struct au0828_dev *dev)
1132 {
1133         struct v4l2_frequency f = {
1134                 .frequency = dev->ctrl_freq,
1135                 .type = V4L2_TUNER_ANALOG_TV,
1136         };
1137
1138         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1139                 dev->std_set_in_tuner_core, dev->dev_state);
1140
1141         if (dev->std_set_in_tuner_core)
1142                 return;
1143         dev->std_set_in_tuner_core = 1;
1144         i2c_gate_ctrl(dev, 1);
1145         /* If we've never sent the standard in tuner core, do so now.
1146            We don't do this at device probe because we don't want to
1147            incur the cost of a firmware load */
1148         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std);
1149         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
1150         i2c_gate_ctrl(dev, 0);
1151 }
1152
1153 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
1154                              struct v4l2_format *format)
1155 {
1156         int ret;
1157         int width = format->fmt.pix.width;
1158         int height = format->fmt.pix.height;
1159
1160         /* If they are demanding a format other than the one we support,
1161            bail out (tvtime asks for UYVY and then retries with YUYV) */
1162         if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)
1163                 return -EINVAL;
1164
1165         /* format->fmt.pix.width only support 720 and height 480 */
1166         if (width != 720)
1167                 width = 720;
1168         if (height != 480)
1169                 height = 480;
1170
1171         format->fmt.pix.width = width;
1172         format->fmt.pix.height = height;
1173         format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1174         format->fmt.pix.bytesperline = width * 2;
1175         format->fmt.pix.sizeimage = width * height * 2;
1176         format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1177         format->fmt.pix.field = V4L2_FIELD_INTERLACED;
1178         format->fmt.pix.priv = 0;
1179
1180         if (cmd == VIDIOC_TRY_FMT)
1181                 return 0;
1182
1183         /* maybe set new image format, driver current only support 720*480 */
1184         dev->width = width;
1185         dev->height = height;
1186         dev->frame_size = width * height * 2;
1187         dev->field_size = width * height;
1188         dev->bytesperline = width * 2;
1189
1190         if (dev->stream_state == STREAM_ON) {
1191                 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
1192                 ret = au0828_stream_interrupt(dev);
1193                 if (ret != 0) {
1194                         dprintk(1, "error interrupting video stream!\n");
1195                         return ret;
1196                 }
1197         }
1198
1199         au0828_analog_stream_enable(dev);
1200
1201         return 0;
1202 }
1203
1204 static int vidioc_querycap(struct file *file, void  *priv,
1205                            struct v4l2_capability *cap)
1206 {
1207         struct video_device *vdev = video_devdata(file);
1208         struct au0828_dev *dev = video_drvdata(file);
1209
1210         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1211                 dev->std_set_in_tuner_core, dev->dev_state);
1212
1213         strlcpy(cap->driver, "au0828", sizeof(cap->driver));
1214         strlcpy(cap->card, dev->board.name, sizeof(cap->card));
1215         usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info));
1216
1217         /* set the device capabilities */
1218         cap->device_caps = V4L2_CAP_AUDIO |
1219                 V4L2_CAP_READWRITE |
1220                 V4L2_CAP_STREAMING |
1221                 V4L2_CAP_TUNER;
1222         if (vdev->vfl_type == VFL_TYPE_GRABBER)
1223                 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
1224         else
1225                 cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
1226         cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS |
1227                 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE;
1228         return 0;
1229 }
1230
1231 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1232                                         struct v4l2_fmtdesc *f)
1233 {
1234         if (f->index)
1235                 return -EINVAL;
1236
1237         dprintk(1, "%s called\n", __func__);
1238
1239         f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1240         strcpy(f->description, "Packed YUV2");
1241
1242         f->flags = 0;
1243         f->pixelformat = V4L2_PIX_FMT_UYVY;
1244
1245         return 0;
1246 }
1247
1248 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1249                                         struct v4l2_format *f)
1250 {
1251         struct au0828_dev *dev = video_drvdata(file);
1252
1253         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1254                 dev->std_set_in_tuner_core, dev->dev_state);
1255
1256         f->fmt.pix.width = dev->width;
1257         f->fmt.pix.height = dev->height;
1258         f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1259         f->fmt.pix.bytesperline = dev->bytesperline;
1260         f->fmt.pix.sizeimage = dev->frame_size;
1261         f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
1262         f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1263         f->fmt.pix.priv = 0;
1264         return 0;
1265 }
1266
1267 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1268                                   struct v4l2_format *f)
1269 {
1270         struct au0828_dev *dev = video_drvdata(file);
1271
1272         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1273                 dev->std_set_in_tuner_core, dev->dev_state);
1274
1275         return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
1276 }
1277
1278 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1279                                 struct v4l2_format *f)
1280 {
1281         struct au0828_dev *dev = video_drvdata(file);
1282         int rc;
1283
1284         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1285                 dev->std_set_in_tuner_core, dev->dev_state);
1286
1287         rc = check_dev(dev);
1288         if (rc < 0)
1289                 return rc;
1290
1291         if (vb2_is_busy(&dev->vb_vidq)) {
1292                 pr_info("%s queue busy\n", __func__);
1293                 rc = -EBUSY;
1294                 goto out;
1295         }
1296
1297         rc = au0828_set_format(dev, VIDIOC_S_FMT, f);
1298 out:
1299         return rc;
1300 }
1301
1302 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
1303 {
1304         struct au0828_dev *dev = video_drvdata(file);
1305
1306         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1307                 dev->std_set_in_tuner_core, dev->dev_state);
1308
1309         if (norm == dev->std)
1310                 return 0;
1311
1312         if (dev->streaming_users > 0)
1313                 return -EBUSY;
1314
1315         dev->std = norm;
1316
1317         au0828_init_tuner(dev);
1318
1319         i2c_gate_ctrl(dev, 1);
1320
1321         /*
1322          * FIXME: when we support something other than 60Hz standards,
1323          * we are going to have to make the au0828 bridge adjust the size
1324          * of its capture buffer, which is currently hardcoded at 720x480
1325          */
1326
1327         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm);
1328
1329         i2c_gate_ctrl(dev, 0);
1330
1331         return 0;
1332 }
1333
1334 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
1335 {
1336         struct au0828_dev *dev = video_drvdata(file);
1337
1338         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1339                 dev->std_set_in_tuner_core, dev->dev_state);
1340
1341         *norm = dev->std;
1342         return 0;
1343 }
1344
1345 static int vidioc_enum_input(struct file *file, void *priv,
1346                                 struct v4l2_input *input)
1347 {
1348         struct au0828_dev *dev = video_drvdata(file);
1349         unsigned int tmp;
1350
1351         static const char *inames[] = {
1352                 [AU0828_VMUX_UNDEFINED] = "Undefined",
1353                 [AU0828_VMUX_COMPOSITE] = "Composite",
1354                 [AU0828_VMUX_SVIDEO] = "S-Video",
1355                 [AU0828_VMUX_CABLE] = "Cable TV",
1356                 [AU0828_VMUX_TELEVISION] = "Television",
1357                 [AU0828_VMUX_DVB] = "DVB",
1358         };
1359
1360         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1361                 dev->std_set_in_tuner_core, dev->dev_state);
1362
1363         tmp = input->index;
1364
1365         if (tmp >= AU0828_MAX_INPUT)
1366                 return -EINVAL;
1367         if (AUVI_INPUT(tmp).type == 0)
1368                 return -EINVAL;
1369
1370         input->index = tmp;
1371         strcpy(input->name, inames[AUVI_INPUT(tmp).type]);
1372         if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
1373             (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) {
1374                 input->type |= V4L2_INPUT_TYPE_TUNER;
1375                 input->audioset = 1;
1376         } else {
1377                 input->type |= V4L2_INPUT_TYPE_CAMERA;
1378                 input->audioset = 2;
1379         }
1380
1381         input->std = dev->vdev.tvnorms;
1382
1383         return 0;
1384 }
1385
1386 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1387 {
1388         struct au0828_dev *dev = video_drvdata(file);
1389
1390         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1391                 dev->std_set_in_tuner_core, dev->dev_state);
1392
1393         *i = dev->ctrl_input;
1394         return 0;
1395 }
1396
1397 static void au0828_s_input(struct au0828_dev *dev, int index)
1398 {
1399         int i;
1400
1401         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1402                 dev->std_set_in_tuner_core, dev->dev_state);
1403
1404         switch (AUVI_INPUT(index).type) {
1405         case AU0828_VMUX_SVIDEO:
1406                 dev->input_type = AU0828_VMUX_SVIDEO;
1407                 dev->ctrl_ainput = 1;
1408                 break;
1409         case AU0828_VMUX_COMPOSITE:
1410                 dev->input_type = AU0828_VMUX_COMPOSITE;
1411                 dev->ctrl_ainput = 1;
1412                 break;
1413         case AU0828_VMUX_TELEVISION:
1414                 dev->input_type = AU0828_VMUX_TELEVISION;
1415                 dev->ctrl_ainput = 0;
1416                 break;
1417         default:
1418                 dprintk(1, "unknown input type set [%d]\n",
1419                         AUVI_INPUT(index).type);
1420                 return;
1421         }
1422
1423         dev->ctrl_input = index;
1424
1425         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
1426                         AUVI_INPUT(index).vmux, 0, 0);
1427
1428         for (i = 0; i < AU0828_MAX_INPUT; i++) {
1429                 int enable = 0;
1430                 if (AUVI_INPUT(i).audio_setup == NULL)
1431                         continue;
1432
1433                 if (i == index)
1434                         enable = 1;
1435                 else
1436                         enable = 0;
1437                 if (enable) {
1438                         (AUVI_INPUT(i).audio_setup)(dev, enable);
1439                 } else {
1440                         /* Make sure we leave it turned on if some
1441                            other input is routed to this callback */
1442                         if ((AUVI_INPUT(i).audio_setup) !=
1443                             ((AUVI_INPUT(index).audio_setup))) {
1444                                 (AUVI_INPUT(i).audio_setup)(dev, enable);
1445                         }
1446                 }
1447         }
1448
1449         v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
1450                         AUVI_INPUT(index).amux, 0, 0);
1451 }
1452
1453 static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
1454 {
1455         struct au0828_dev *dev = video_drvdata(file);
1456         struct video_device *vfd = video_devdata(file);
1457
1458         dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
1459                 index);
1460         if (index >= AU0828_MAX_INPUT)
1461                 return -EINVAL;
1462         if (AUVI_INPUT(index).type == 0)
1463                 return -EINVAL;
1464
1465         if (dev->ctrl_input == index)
1466                 return 0;
1467
1468         au0828_s_input(dev, index);
1469
1470         /*
1471          * Input has been changed. Disable the media source
1472          * associated with the old input and enable source
1473          * for the newly set input
1474          */
1475         v4l_disable_media_source(vfd);
1476         return v4l_enable_media_source(vfd);
1477 }
1478
1479 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a)
1480 {
1481         if (a->index > 1)
1482                 return -EINVAL;
1483
1484         dprintk(1, "%s called\n", __func__);
1485
1486         if (a->index == 0)
1487                 strcpy(a->name, "Television");
1488         else
1489                 strcpy(a->name, "Line in");
1490
1491         a->capability = V4L2_AUDCAP_STEREO;
1492         return 0;
1493 }
1494
1495 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1496 {
1497         struct au0828_dev *dev = video_drvdata(file);
1498
1499         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1500                 dev->std_set_in_tuner_core, dev->dev_state);
1501
1502         a->index = dev->ctrl_ainput;
1503         if (a->index == 0)
1504                 strcpy(a->name, "Television");
1505         else
1506                 strcpy(a->name, "Line in");
1507
1508         a->capability = V4L2_AUDCAP_STEREO;
1509         return 0;
1510 }
1511
1512 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)
1513 {
1514         struct au0828_dev *dev = video_drvdata(file);
1515
1516         if (a->index != dev->ctrl_ainput)
1517                 return -EINVAL;
1518
1519         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1520                 dev->std_set_in_tuner_core, dev->dev_state);
1521         return 0;
1522 }
1523
1524 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1525 {
1526         struct au0828_dev *dev = video_drvdata(file);
1527         struct video_device *vfd = video_devdata(file);
1528         int ret;
1529
1530         if (t->index != 0)
1531                 return -EINVAL;
1532
1533         ret = v4l_enable_media_source(vfd);
1534         if (ret)
1535                 return ret;
1536
1537         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1538                 dev->std_set_in_tuner_core, dev->dev_state);
1539
1540         strcpy(t->name, "Auvitek tuner");
1541
1542         au0828_init_tuner(dev);
1543         i2c_gate_ctrl(dev, 1);
1544         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1545         i2c_gate_ctrl(dev, 0);
1546         return 0;
1547 }
1548
1549 static int vidioc_s_tuner(struct file *file, void *priv,
1550                                 const struct v4l2_tuner *t)
1551 {
1552         struct au0828_dev *dev = video_drvdata(file);
1553
1554         if (t->index != 0)
1555                 return -EINVAL;
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         au0828_init_tuner(dev);
1561         i2c_gate_ctrl(dev, 1);
1562         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1563         i2c_gate_ctrl(dev, 0);
1564
1565         dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
1566                 t->afc);
1567
1568         return 0;
1569
1570 }
1571
1572 static int vidioc_g_frequency(struct file *file, void *priv,
1573                                 struct v4l2_frequency *freq)
1574 {
1575         struct au0828_dev *dev = video_drvdata(file);
1576
1577         if (freq->tuner != 0)
1578                 return -EINVAL;
1579         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1580                 dev->std_set_in_tuner_core, dev->dev_state);
1581         freq->frequency = dev->ctrl_freq;
1582         return 0;
1583 }
1584
1585 static int vidioc_s_frequency(struct file *file, void *priv,
1586                                 const struct v4l2_frequency *freq)
1587 {
1588         struct au0828_dev *dev = video_drvdata(file);
1589         struct v4l2_frequency new_freq = *freq;
1590
1591         if (freq->tuner != 0)
1592                 return -EINVAL;
1593
1594         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1595                 dev->std_set_in_tuner_core, dev->dev_state);
1596
1597         au0828_init_tuner(dev);
1598         i2c_gate_ctrl(dev, 1);
1599
1600         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
1601         /* Get the actual set (and possibly clamped) frequency */
1602         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
1603         dev->ctrl_freq = new_freq.frequency;
1604
1605         i2c_gate_ctrl(dev, 0);
1606
1607         au0828_analog_stream_reset(dev);
1608
1609         return 0;
1610 }
1611
1612
1613 /* RAW VBI ioctls */
1614
1615 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1616                                 struct v4l2_format *format)
1617 {
1618         struct au0828_dev *dev = video_drvdata(file);
1619
1620         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1621                 dev->std_set_in_tuner_core, dev->dev_state);
1622
1623         format->fmt.vbi.samples_per_line = dev->vbi_width;
1624         format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1625         format->fmt.vbi.offset = 0;
1626         format->fmt.vbi.flags = 0;
1627         format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
1628
1629         format->fmt.vbi.count[0] = dev->vbi_height;
1630         format->fmt.vbi.count[1] = dev->vbi_height;
1631         format->fmt.vbi.start[0] = 21;
1632         format->fmt.vbi.start[1] = 284;
1633         memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
1634
1635         return 0;
1636 }
1637
1638 static int vidioc_cropcap(struct file *file, void *priv,
1639                           struct v4l2_cropcap *cc)
1640 {
1641         struct au0828_dev *dev = video_drvdata(file);
1642
1643         if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1644                 return -EINVAL;
1645
1646         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1647                 dev->std_set_in_tuner_core, dev->dev_state);
1648
1649         cc->bounds.left = 0;
1650         cc->bounds.top = 0;
1651         cc->bounds.width = dev->width;
1652         cc->bounds.height = dev->height;
1653
1654         cc->defrect = cc->bounds;
1655
1656         cc->pixelaspect.numerator = 54;
1657         cc->pixelaspect.denominator = 59;
1658
1659         return 0;
1660 }
1661
1662 #ifdef CONFIG_VIDEO_ADV_DEBUG
1663 static int vidioc_g_register(struct file *file, void *priv,
1664                              struct v4l2_dbg_register *reg)
1665 {
1666         struct au0828_dev *dev = video_drvdata(file);
1667
1668         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1669                 dev->std_set_in_tuner_core, dev->dev_state);
1670
1671         reg->val = au0828_read(dev, reg->reg);
1672         reg->size = 1;
1673         return 0;
1674 }
1675
1676 static int vidioc_s_register(struct file *file, void *priv,
1677                              const struct v4l2_dbg_register *reg)
1678 {
1679         struct au0828_dev *dev = video_drvdata(file);
1680
1681         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1682                 dev->std_set_in_tuner_core, dev->dev_state);
1683
1684         return au0828_writereg(dev, reg->reg, reg->val);
1685 }
1686 #endif
1687
1688 static int vidioc_log_status(struct file *file, void *fh)
1689 {
1690         struct video_device *vdev = video_devdata(file);
1691
1692         dprintk(1, "%s called\n", __func__);
1693
1694         v4l2_ctrl_log_status(file, fh);
1695         v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status);
1696         return 0;
1697 }
1698
1699 void au0828_v4l2_suspend(struct au0828_dev *dev)
1700 {
1701         struct urb *urb;
1702         int i;
1703
1704         pr_info("stopping V4L2\n");
1705
1706         if (dev->stream_state == STREAM_ON) {
1707                 pr_info("stopping V4L2 active URBs\n");
1708                 au0828_analog_stream_disable(dev);
1709                 /* stop urbs */
1710                 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1711                         urb = dev->isoc_ctl.urb[i];
1712                         if (urb) {
1713                                 if (!irqs_disabled())
1714                                         usb_kill_urb(urb);
1715                                 else
1716                                         usb_unlink_urb(urb);
1717                         }
1718                 }
1719         }
1720
1721         if (dev->vid_timeout_running)
1722                 del_timer_sync(&dev->vid_timeout);
1723         if (dev->vbi_timeout_running)
1724                 del_timer_sync(&dev->vbi_timeout);
1725 }
1726
1727 void au0828_v4l2_resume(struct au0828_dev *dev)
1728 {
1729         int i, rc;
1730
1731         pr_info("restarting V4L2\n");
1732
1733         if (dev->stream_state == STREAM_ON) {
1734                 au0828_stream_interrupt(dev);
1735                 au0828_init_tuner(dev);
1736         }
1737
1738         if (dev->vid_timeout_running)
1739                 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
1740         if (dev->vbi_timeout_running)
1741                 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1742
1743         /* If we were doing ac97 instead of i2s, it would go here...*/
1744         au0828_i2s_init(dev);
1745
1746         au0828_analog_stream_enable(dev);
1747
1748         if (!(dev->stream_state == STREAM_ON)) {
1749                 au0828_analog_stream_reset(dev);
1750                 /* submit urbs */
1751                 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1752                         rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
1753                         if (rc) {
1754                                 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
1755                                                i, rc);
1756                                 au0828_uninit_isoc(dev);
1757                         }
1758                 }
1759         }
1760 }
1761
1762 static struct v4l2_file_operations au0828_v4l_fops = {
1763         .owner      = THIS_MODULE,
1764         .open       = au0828_v4l2_open,
1765         .release    = au0828_v4l2_close,
1766         .read       = vb2_fop_read,
1767         .poll       = vb2_fop_poll,
1768         .mmap       = vb2_fop_mmap,
1769         .unlocked_ioctl = video_ioctl2,
1770 };
1771
1772 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1773         .vidioc_querycap            = vidioc_querycap,
1774         .vidioc_enum_fmt_vid_cap    = vidioc_enum_fmt_vid_cap,
1775         .vidioc_g_fmt_vid_cap       = vidioc_g_fmt_vid_cap,
1776         .vidioc_try_fmt_vid_cap     = vidioc_try_fmt_vid_cap,
1777         .vidioc_s_fmt_vid_cap       = vidioc_s_fmt_vid_cap,
1778         .vidioc_g_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
1779         .vidioc_try_fmt_vbi_cap     = vidioc_g_fmt_vbi_cap,
1780         .vidioc_s_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
1781         .vidioc_enumaudio           = vidioc_enumaudio,
1782         .vidioc_g_audio             = vidioc_g_audio,
1783         .vidioc_s_audio             = vidioc_s_audio,
1784         .vidioc_cropcap             = vidioc_cropcap,
1785
1786         .vidioc_reqbufs             = vb2_ioctl_reqbufs,
1787         .vidioc_create_bufs         = vb2_ioctl_create_bufs,
1788         .vidioc_prepare_buf         = vb2_ioctl_prepare_buf,
1789         .vidioc_querybuf            = vb2_ioctl_querybuf,
1790         .vidioc_qbuf                = vb2_ioctl_qbuf,
1791         .vidioc_dqbuf               = vb2_ioctl_dqbuf,
1792         .vidioc_expbuf               = vb2_ioctl_expbuf,
1793
1794         .vidioc_s_std               = vidioc_s_std,
1795         .vidioc_g_std               = vidioc_g_std,
1796         .vidioc_enum_input          = vidioc_enum_input,
1797         .vidioc_g_input             = vidioc_g_input,
1798         .vidioc_s_input             = vidioc_s_input,
1799
1800         .vidioc_streamon            = vb2_ioctl_streamon,
1801         .vidioc_streamoff           = vb2_ioctl_streamoff,
1802
1803         .vidioc_g_tuner             = vidioc_g_tuner,
1804         .vidioc_s_tuner             = vidioc_s_tuner,
1805         .vidioc_g_frequency         = vidioc_g_frequency,
1806         .vidioc_s_frequency         = vidioc_s_frequency,
1807 #ifdef CONFIG_VIDEO_ADV_DEBUG
1808         .vidioc_g_register          = vidioc_g_register,
1809         .vidioc_s_register          = vidioc_s_register,
1810 #endif
1811         .vidioc_log_status          = vidioc_log_status,
1812         .vidioc_subscribe_event     = v4l2_ctrl_subscribe_event,
1813         .vidioc_unsubscribe_event   = v4l2_event_unsubscribe,
1814 };
1815
1816 static const struct video_device au0828_video_template = {
1817         .fops                       = &au0828_v4l_fops,
1818         .release                    = video_device_release_empty,
1819         .ioctl_ops                  = &video_ioctl_ops,
1820         .tvnorms                    = V4L2_STD_NTSC_M | V4L2_STD_PAL_M,
1821 };
1822
1823 static int au0828_vb2_setup(struct au0828_dev *dev)
1824 {
1825         int rc;
1826         struct vb2_queue *q;
1827
1828         /* Setup Videobuf2 for Video capture */
1829         q = &dev->vb_vidq;
1830         q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1831         q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1832         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1833         q->drv_priv = dev;
1834         q->buf_struct_size = sizeof(struct au0828_buffer);
1835         q->ops = &au0828_video_qops;
1836         q->mem_ops = &vb2_vmalloc_memops;
1837
1838         rc = vb2_queue_init(q);
1839         if (rc < 0)
1840                 return rc;
1841
1842         /* Setup Videobuf2 for VBI capture */
1843         q = &dev->vb_vbiq;
1844         q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1845         q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1846         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1847         q->drv_priv = dev;
1848         q->buf_struct_size = sizeof(struct au0828_buffer);
1849         q->ops = &au0828_vbi_qops;
1850         q->mem_ops = &vb2_vmalloc_memops;
1851
1852         rc = vb2_queue_init(q);
1853         if (rc < 0)
1854                 return rc;
1855
1856         return 0;
1857 }
1858
1859 static void au0828_analog_create_entities(struct au0828_dev *dev)
1860 {
1861 #if defined(CONFIG_MEDIA_CONTROLLER)
1862         static const char * const inames[] = {
1863                 [AU0828_VMUX_COMPOSITE] = "Composite",
1864                 [AU0828_VMUX_SVIDEO] = "S-Video",
1865                 [AU0828_VMUX_CABLE] = "Cable TV",
1866                 [AU0828_VMUX_TELEVISION] = "Television",
1867                 [AU0828_VMUX_DVB] = "DVB",
1868         };
1869         int ret, i;
1870
1871         /* Initialize Video and VBI pads */
1872         dev->video_pad.flags = MEDIA_PAD_FL_SINK;
1873         ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad);
1874         if (ret < 0)
1875                 pr_err("failed to initialize video media entity!\n");
1876
1877         dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
1878         ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad);
1879         if (ret < 0)
1880                 pr_err("failed to initialize vbi media entity!\n");
1881
1882         /* Create entities for each input connector */
1883         for (i = 0; i < AU0828_MAX_INPUT; i++) {
1884                 struct media_entity *ent = &dev->input_ent[i];
1885
1886                 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
1887                         break;
1888
1889                 ent->name = inames[AUVI_INPUT(i).type];
1890                 ent->flags = MEDIA_ENT_FL_CONNECTOR;
1891                 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
1892
1893                 switch (AUVI_INPUT(i).type) {
1894                 case AU0828_VMUX_COMPOSITE:
1895                         ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
1896                         break;
1897                 case AU0828_VMUX_SVIDEO:
1898                         ent->function = MEDIA_ENT_F_CONN_SVIDEO;
1899                         break;
1900                 case AU0828_VMUX_CABLE:
1901                 case AU0828_VMUX_TELEVISION:
1902                 case AU0828_VMUX_DVB:
1903                 default: /* Just to shut up a warning */
1904                         ent->function = MEDIA_ENT_F_CONN_RF;
1905                         break;
1906                 }
1907
1908                 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
1909                 if (ret < 0)
1910                         pr_err("failed to initialize input pad[%d]!\n", i);
1911
1912                 ret = media_device_register_entity(dev->media_dev, ent);
1913                 if (ret < 0)
1914                         pr_err("failed to register input entity %d!\n", i);
1915         }
1916 #endif
1917 }
1918
1919 /**************************************************************************/
1920
1921 int au0828_analog_register(struct au0828_dev *dev,
1922                            struct usb_interface *interface)
1923 {
1924         int retval = -ENOMEM;
1925         struct usb_host_interface *iface_desc;
1926         struct usb_endpoint_descriptor *endpoint;
1927         int i, ret;
1928
1929         dprintk(1, "au0828_analog_register called for intf#%d!\n",
1930                 interface->cur_altsetting->desc.bInterfaceNumber);
1931
1932         /* No analog TV */
1933         if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
1934                 return 0;
1935
1936         /* set au0828 usb interface0 to as5 */
1937         retval = usb_set_interface(dev->usbdev,
1938                         interface->cur_altsetting->desc.bInterfaceNumber, 5);
1939         if (retval != 0) {
1940                 pr_info("Failure setting usb interface0 to as5\n");
1941                 return retval;
1942         }
1943
1944         /* Figure out which endpoint has the isoc interface */
1945         iface_desc = interface->cur_altsetting;
1946         for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
1947                 endpoint = &iface_desc->endpoint[i].desc;
1948                 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1949                      == USB_DIR_IN) &&
1950                     ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1951                      == USB_ENDPOINT_XFER_ISOC)) {
1952
1953                         /* we find our isoc in endpoint */
1954                         u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
1955                         dev->max_pkt_size = (tmp & 0x07ff) *
1956                                 (((tmp & 0x1800) >> 11) + 1);
1957                         dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
1958                         dprintk(1,
1959                                 "Found isoc endpoint 0x%02x, max size = %d\n",
1960                                 dev->isoc_in_endpointaddr, dev->max_pkt_size);
1961                 }
1962         }
1963         if (!(dev->isoc_in_endpointaddr)) {
1964                 pr_info("Could not locate isoc endpoint\n");
1965                 return -ENODEV;
1966         }
1967
1968         init_waitqueue_head(&dev->open);
1969         spin_lock_init(&dev->slock);
1970
1971         /* init video dma queues */
1972         INIT_LIST_HEAD(&dev->vidq.active);
1973         INIT_LIST_HEAD(&dev->vbiq.active);
1974
1975         setup_timer(&dev->vid_timeout, au0828_vid_buffer_timeout,
1976                     (unsigned long)dev);
1977         setup_timer(&dev->vbi_timeout, au0828_vbi_buffer_timeout,
1978                     (unsigned long)dev);
1979
1980         dev->width = NTSC_STD_W;
1981         dev->height = NTSC_STD_H;
1982         dev->field_size = dev->width * dev->height;
1983         dev->frame_size = dev->field_size << 1;
1984         dev->bytesperline = dev->width << 1;
1985         dev->vbi_width = 720;
1986         dev->vbi_height = 1;
1987         dev->ctrl_ainput = 0;
1988         dev->ctrl_freq = 960;
1989         dev->std = V4L2_STD_NTSC_M;
1990         /* Default input is TV Tuner */
1991         au0828_s_input(dev, 0);
1992
1993         mutex_init(&dev->vb_queue_lock);
1994         mutex_init(&dev->vb_vbi_queue_lock);
1995
1996         /* Fill the video capture device struct */
1997         dev->vdev = au0828_video_template;
1998         dev->vdev.v4l2_dev = &dev->v4l2_dev;
1999         dev->vdev.lock = &dev->lock;
2000         dev->vdev.queue = &dev->vb_vidq;
2001         dev->vdev.queue->lock = &dev->vb_queue_lock;
2002         strcpy(dev->vdev.name, "au0828a video");
2003
2004         /* Setup the VBI device */
2005         dev->vbi_dev = au0828_video_template;
2006         dev->vbi_dev.v4l2_dev = &dev->v4l2_dev;
2007         dev->vbi_dev.lock = &dev->lock;
2008         dev->vbi_dev.queue = &dev->vb_vbiq;
2009         dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock;
2010         strcpy(dev->vbi_dev.name, "au0828a vbi");
2011
2012         /* Init entities at the Media Controller */
2013         au0828_analog_create_entities(dev);
2014
2015         /* initialize videobuf2 stuff */
2016         retval = au0828_vb2_setup(dev);
2017         if (retval != 0) {
2018                 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n",
2019                         retval);
2020                 return -ENODEV;
2021         }
2022
2023         /* Register the v4l2 device */
2024         video_set_drvdata(&dev->vdev, dev);
2025         retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1);
2026         if (retval != 0) {
2027                 dprintk(1, "unable to register video device (error = %d).\n",
2028                         retval);
2029                 ret = -ENODEV;
2030                 goto err_reg_vdev;
2031         }
2032
2033         /* Register the vbi device */
2034         video_set_drvdata(&dev->vbi_dev, dev);
2035         retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1);
2036         if (retval != 0) {
2037                 dprintk(1, "unable to register vbi device (error = %d).\n",
2038                         retval);
2039                 ret = -ENODEV;
2040                 goto err_reg_vbi_dev;
2041         }
2042
2043 #ifdef CONFIG_MEDIA_CONTROLLER
2044         retval = v4l2_mc_create_media_graph(dev->media_dev);
2045         if (retval) {
2046                 pr_err("%s() au0282_dev_register failed to create graph\n",
2047                         __func__);
2048                 ret = -ENODEV;
2049                 goto err_reg_vbi_dev;
2050         }
2051 #endif
2052
2053         dprintk(1, "%s completed!\n", __func__);
2054
2055         return 0;
2056
2057 err_reg_vbi_dev:
2058         video_unregister_device(&dev->vdev);
2059 err_reg_vdev:
2060         vb2_queue_release(&dev->vb_vidq);
2061         vb2_queue_release(&dev->vb_vbiq);
2062         return ret;
2063 }
2064