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         struct vb2_v4l2_buffer *vb = &buf->vb;
 306         struct vb2_queue *q = vb->vb2_buf.vb2_queue;
 307
 308         /* Advice that buffer was filled */
 309         au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field);
 310
 311         if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 312                 vb->sequence = dev->frame_count++;
 313         else
 314                 vb->sequence = dev->vbi_frame_count++;
 315
 316         vb->field = V4L2_FIELD_INTERLACED;
 317         vb->vb2_buf.timestamp = ktime_get_ns();
 318         vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE);
 319 }
 320
 321 /*
 322  * Identify the buffer header type and properly handles
 323  */
 324 static void au0828_copy_video(struct au0828_dev *dev,
 325                               struct au0828_dmaqueue  *dma_q,
 326                               struct au0828_buffer *buf,
 327                               unsigned char *p,
 328                               unsigned char *outp, unsigned long len)
 329 {
 330         void *fieldstart, *startwrite, *startread;
 331         int  linesdone, currlinedone, offset, lencopy, remain;
 332         int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */
 333
 334         if (len == 0)
 335                 return;
 336
 337         if (dma_q->pos + len > buf->length)
 338                 len = buf->length - dma_q->pos;
 339
 340         startread = p;
 341         remain = len;
 342
 343         /* Interlaces frame */
 344         if (buf->top_field)
 345                 fieldstart = outp;
 346         else
 347                 fieldstart = outp + bytesperline;
 348
 349         linesdone = dma_q->pos / bytesperline;
 350         currlinedone = dma_q->pos % bytesperline;
 351         offset = linesdone * bytesperline * 2 + currlinedone;
 352         startwrite = fieldstart + offset;
 353         lencopy = bytesperline - currlinedone;
 354         lencopy = lencopy > remain ? remain : lencopy;
 355
 356         if ((char *)startwrite + lencopy > (char *)outp + buf->length) {
 357                 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
 358                                ((char *)startwrite + lencopy) -
 359                                ((char *)outp + buf->length));
 360                 remain = (char *)outp + buf->length - (char *)startwrite;
 361                 lencopy = remain;
 362         }
 363         if (lencopy <= 0)
 364                 return;
 365         memcpy(startwrite, startread, lencopy);
 366
 367         remain -= lencopy;
 368
 369         while (remain > 0) {
 370                 startwrite += lencopy + bytesperline;
 371                 startread += lencopy;
 372                 if (bytesperline > remain)
 373                         lencopy = remain;
 374                 else
 375                         lencopy = bytesperline;
 376
 377                 if ((char *)startwrite + lencopy > (char *)outp +
 378                     buf->length) {
 379                         au0828_isocdbg("Overflow %zi bytes past buf end (2)\n",
 380                                        ((char *)startwrite + lencopy) -
 381                                        ((char *)outp + buf->length));
 382                         lencopy = remain = (char *)outp + buf->length -
 383                                            (char *)startwrite;
 384                 }
 385                 if (lencopy <= 0)
 386                         break;
 387
 388                 memcpy(startwrite, startread, lencopy);
 389
 390                 remain -= lencopy;
 391         }
 392
 393         if (offset > 1440) {
 394                 /* We have enough data to check for greenscreen */
 395                 if (outp[0] < 0x60 && outp[1440] < 0x60)
 396                         dev->greenscreen_detected = 1;
 397         }
 398
 399         dma_q->pos += len;
 400 }
 401
 402 /*
 403  * video-buf generic routine to get the next available buffer
 404  */
 405 static inline void get_next_buf(struct au0828_dmaqueue *dma_q,
 406                                 struct au0828_buffer **buf)
 407 {
 408         struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
 409
 410         if (list_empty(&dma_q->active)) {
 411                 au0828_isocdbg("No active queue to serve\n");
 412                 dev->isoc_ctl.buf = NULL;
 413                 *buf = NULL;
 414                 return;
 415         }
 416
 417         /* Get the next buffer */
 418         *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
 419         /* Cleans up buffer - Useful for testing for frame/URB loss */
 420         list_del(&(*buf)->list);
 421         dma_q->pos = 0;
 422         (*buf)->vb_buf = (*buf)->mem;
 423         dev->isoc_ctl.buf = *buf;
 424
 425         return;
 426 }
 427
 428 static void au0828_copy_vbi(struct au0828_dev *dev,
 429                               struct au0828_dmaqueue  *dma_q,
 430                               struct au0828_buffer *buf,
 431                               unsigned char *p,
 432                               unsigned char *outp, unsigned long len)
 433 {
 434         unsigned char *startwrite, *startread;
 435         int bytesperline;
 436         int i, j = 0;
 437
 438         if (dev == NULL) {
 439                 au0828_isocdbg("dev is null\n");
 440                 return;
 441         }
 442
 443         if (dma_q == NULL) {
 444                 au0828_isocdbg("dma_q is null\n");
 445                 return;
 446         }
 447         if (buf == NULL)
 448                 return;
 449         if (p == NULL) {
 450                 au0828_isocdbg("p is null\n");
 451                 return;
 452         }
 453         if (outp == NULL) {
 454                 au0828_isocdbg("outp is null\n");
 455                 return;
 456         }
 457
 458         bytesperline = dev->vbi_width;
 459
 460         if (dma_q->pos + len > buf->length)
 461                 len = buf->length - dma_q->pos;
 462
 463         startread = p;
 464         startwrite = outp + (dma_q->pos / 2);
 465
 466         /* Make sure the bottom field populates the second half of the frame */
 467         if (buf->top_field == 0)
 468                 startwrite += bytesperline * dev->vbi_height;
 469
 470         for (i = 0; i < len; i += 2)
 471                 startwrite[j++] = startread[i+1];
 472
 473         dma_q->pos += len;
 474 }
 475
 476
 477 /*
 478  * video-buf generic routine to get the next available VBI buffer
 479  */
 480 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q,
 481                                     struct au0828_buffer **buf)
 482 {
 483         struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq);
 484
 485         if (list_empty(&dma_q->active)) {
 486                 au0828_isocdbg("No active queue to serve\n");
 487                 dev->isoc_ctl.vbi_buf = NULL;
 488                 *buf = NULL;
 489                 return;
 490         }
 491
 492         /* Get the next buffer */
 493         *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
 494         /* Cleans up buffer - Useful for testing for frame/URB loss */
 495         list_del(&(*buf)->list);
 496         dma_q->pos = 0;
 497         (*buf)->vb_buf = (*buf)->mem;
 498         dev->isoc_ctl.vbi_buf = *buf;
 499         return;
 500 }
 501
 502 /*
 503  * Controls the isoc copy of each urb packet
 504  */
 505 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
 506 {
 507         struct au0828_buffer    *buf;
 508         struct au0828_buffer    *vbi_buf;
 509         struct au0828_dmaqueue  *dma_q = urb->context;
 510         struct au0828_dmaqueue  *vbi_dma_q = &dev->vbiq;
 511         unsigned char *outp = NULL;
 512         unsigned char *vbioutp = NULL;
 513         int i, len = 0, rc = 1;
 514         unsigned char *p;
 515         unsigned char fbyte;
 516         unsigned int vbi_field_size;
 517         unsigned int remain, lencopy;
 518
 519         if (!dev)
 520                 return 0;
 521
 522         if ((dev->dev_state & DEV_DISCONNECTED) ||
 523             (dev->dev_state & DEV_MISCONFIGURED))
 524                 return 0;
 525
 526         if (urb->status < 0) {
 527                 print_err_status(dev, -1, urb->status);
 528                 if (urb->status == -ENOENT)
 529                         return 0;
 530         }
 531
 532         buf = dev->isoc_ctl.buf;
 533         if (buf != NULL)
 534                 outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
 535
 536         vbi_buf = dev->isoc_ctl.vbi_buf;
 537         if (vbi_buf != NULL)
 538                 vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0);
 539
 540         for (i = 0; i < urb->number_of_packets; i++) {
 541                 int status = urb->iso_frame_desc[i].status;
 542
 543                 if (status < 0) {
 544                         print_err_status(dev, i, status);
 545                         if (urb->iso_frame_desc[i].status != -EPROTO)
 546                                 continue;
 547                 }
 548
 549                 if (urb->iso_frame_desc[i].actual_length <= 0)
 550                         continue;
 551
 552                 if (urb->iso_frame_desc[i].actual_length >
 553                                                 dev->max_pkt_size) {
 554                         au0828_isocdbg("packet bigger than packet size");
 555                         continue;
 556                 }
 557
 558                 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
 559                 fbyte = p[0];
 560                 len = urb->iso_frame_desc[i].actual_length - 4;
 561                 p += 4;
 562
 563                 if (fbyte & 0x80) {
 564                         len -= 4;
 565                         p += 4;
 566                         au0828_isocdbg("Video frame %s\n",
 567                                        (fbyte & 0x40) ? "odd" : "even");
 568                         if (fbyte & 0x40) {
 569                                 /* VBI */
 570                                 if (vbi_buf != NULL)
 571                                         buffer_filled(dev, vbi_dma_q, vbi_buf);
 572                                 vbi_get_next_buf(vbi_dma_q, &vbi_buf);
 573                                 if (vbi_buf == NULL)
 574                                         vbioutp = NULL;
 575                                 else
 576                                         vbioutp = vb2_plane_vaddr(
 577                                                 &vbi_buf->vb.vb2_buf, 0);
 578
 579                                 /* Video */
 580                                 if (buf != NULL)
 581                                         buffer_filled(dev, dma_q, buf);
 582                                 get_next_buf(dma_q, &buf);
 583                                 if (buf == NULL)
 584                                         outp = NULL;
 585                                 else
 586                                         outp = vb2_plane_vaddr(
 587                                                 &buf->vb.vb2_buf, 0);
 588
 589                                 /* As long as isoc traffic is arriving, keep
 590                                    resetting the timer */
 591                                 if (dev->vid_timeout_running)
 592                                         mod_timer(&dev->vid_timeout,
 593                                                   jiffies + (HZ / 10));
 594                                 if (dev->vbi_timeout_running)
 595                                         mod_timer(&dev->vbi_timeout,
 596                                                   jiffies + (HZ / 10));
 597                         }
 598
 599                         if (buf != NULL) {
 600                                 if (fbyte & 0x40)
 601                                         buf->top_field = 1;
 602                                 else
 603                                         buf->top_field = 0;
 604                         }
 605
 606                         if (vbi_buf != NULL) {
 607                                 if (fbyte & 0x40)
 608                                         vbi_buf->top_field = 1;
 609                                 else
 610                                         vbi_buf->top_field = 0;
 611                         }
 612
 613                         dev->vbi_read = 0;
 614                         vbi_dma_q->pos = 0;
 615                         dma_q->pos = 0;
 616                 }
 617
 618                 vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
 619                 if (dev->vbi_read < vbi_field_size) {
 620                         remain  = vbi_field_size - dev->vbi_read;
 621                         if (len < remain)
 622                                 lencopy = len;
 623                         else
 624                                 lencopy = remain;
 625
 626                         if (vbi_buf != NULL)
 627                                 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
 628                                                 vbioutp, len);
 629
 630                         len -= lencopy;
 631                         p += lencopy;
 632                         dev->vbi_read += lencopy;
 633                 }
 634
 635                 if (dev->vbi_read >= vbi_field_size && buf != NULL)
 636                         au0828_copy_video(dev, dma_q, buf, p, outp, len);
 637         }
 638         return rc;
 639 }
 640
 641 void au0828_usb_v4l2_media_release(struct au0828_dev *dev)
 642 {
 643 #ifdef CONFIG_MEDIA_CONTROLLER
 644         int i;
 645
 646         for (i = 0; i < AU0828_MAX_INPUT; i++) {
 647                 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
 648                         return;
 649                 media_device_unregister_entity(&dev->input_ent[i]);
 650         }
 651 #endif
 652 }
 653
 654 static int au0828_create_media_graph(struct au0828_dev *dev)
 655 {
 656 #ifdef CONFIG_MEDIA_CONTROLLER
 657         struct media_device *mdev = dev->media_dev;
 658         struct media_entity *entity;
 659         struct media_entity *tuner = NULL, *decoder = NULL;
 660         int i, ret;
 661
 662         if (!mdev)
 663                 return 0;
 664
 665         media_device_for_each_entity(entity, mdev) {
 666                 switch (entity->function) {
 667                 case MEDIA_ENT_F_TUNER:
 668                         tuner = entity;
 669                         break;
 670                 case MEDIA_ENT_F_ATV_DECODER:
 671                         decoder = entity;
 672                         break;
 673                 }
 674         }
 675
 676         /* Analog setup, using tuner as a link */
 677
 678         /* Something bad happened! */
 679         if (!decoder)
 680                 return -EINVAL;
 681
 682         if (tuner) {
 683                 ret = media_create_pad_link(tuner, TUNER_PAD_OUTPUT,
 684                                             decoder, 0,
 685                                             MEDIA_LNK_FL_ENABLED);
 686                 if (ret)
 687                         return ret;
 688         }
 689         ret = media_create_pad_link(decoder, 1, &dev->vdev.entity, 0,
 690                                     MEDIA_LNK_FL_ENABLED);
 691         if (ret)
 692                 return ret;
 693         ret = media_create_pad_link(decoder, 2, &dev->vbi_dev.entity, 0,
 694                                     MEDIA_LNK_FL_ENABLED);
 695         if (ret)
 696                 return ret;
 697
 698         for (i = 0; i < AU0828_MAX_INPUT; i++) {
 699                 struct media_entity *ent = &dev->input_ent[i];
 700
 701                 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
 702                         break;
 703
 704                 switch (AUVI_INPUT(i).type) {
 705                 case AU0828_VMUX_CABLE:
 706                 case AU0828_VMUX_TELEVISION:
 707                 case AU0828_VMUX_DVB:
 708                         if (!tuner)
 709                                 break;
 710
 711                         ret = media_create_pad_link(ent, 0, tuner,
 712                                                     TUNER_PAD_RF_INPUT,
 713                                                     MEDIA_LNK_FL_ENABLED);
 714                         if (ret)
 715                                 return ret;
 716                         break;
 717                 case AU0828_VMUX_COMPOSITE:
 718                 case AU0828_VMUX_SVIDEO:
 719                 default: /* AU0828_VMUX_DEBUG */
 720                         /* FIXME: fix the decoder PAD */
 721                         ret = media_create_pad_link(ent, 0, decoder, 0, 0);
 722                         if (ret)
 723                                 return ret;
 724                         break;
 725                 }
 726         }
 727 #endif
 728         return 0;
 729 }
 730
 731 static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev)
 732 {
 733         struct au0828_dev *dev =
 734                 container_of(v4l2_dev, struct au0828_dev, v4l2_dev);
 735
 736         v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl);
 737         v4l2_device_unregister(&dev->v4l2_dev);
 738         au0828_usb_v4l2_media_release(dev);
 739         au0828_usb_release(dev);
 740 }
 741
 742 int au0828_v4l2_device_register(struct usb_interface *interface,
 743                                 struct au0828_dev *dev)
 744 {
 745         int retval;
 746
 747         if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
 748                 return 0;
 749
 750         /* Create the v4l2_device */
 751 #ifdef CONFIG_MEDIA_CONTROLLER
 752         dev->v4l2_dev.mdev = dev->media_dev;
 753 #endif
 754         retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
 755         if (retval) {
 756                 pr_err("%s() v4l2_device_register failed\n",
 757                        __func__);
 758                 mutex_unlock(&dev->lock);
 759                 kfree(dev);
 760                 return retval;
 761         }
 762
 763         dev->v4l2_dev.release = au0828_usb_v4l2_release;
 764
 765         /* This control handler will inherit the controls from au8522 */
 766         retval = v4l2_ctrl_handler_init(&dev->v4l2_ctrl_hdl, 4);
 767         if (retval) {
 768                 pr_err("%s() v4l2_ctrl_handler_init failed\n",
 769                        __func__);
 770                 mutex_unlock(&dev->lock);
 771                 kfree(dev);
 772                 return retval;
 773         }
 774         dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl;
 775
 776         return 0;
 777 }
 778
 779 static int au0828_enable_analog_tuner(struct au0828_dev *dev)
 780 {
 781 #ifdef CONFIG_MEDIA_CONTROLLER
 782         struct media_device *mdev = dev->media_dev;
 783         struct media_entity *source;
 784         struct media_link *link, *found_link = NULL;
 785         int ret, active_links = 0;
 786
 787         if (!mdev || !dev->decoder)
 788                 return 0;
 789
 790         /*
 791          * This will find the tuner that is connected into the decoder.
 792          * Technically, this is not 100% correct, as the device may be
 793          * using an analog input instead of the tuner. However, as we can't
 794          * do DVB streaming while the DMA engine is being used for V4L2,
 795          * this should be enough for the actual needs.
 796          */
 797         list_for_each_entry(link, &dev->decoder->links, list) {
 798                 if (link->sink->entity == dev->decoder) {
 799                         found_link = link;
 800                         if (link->flags & MEDIA_LNK_FL_ENABLED)
 801                                 active_links++;
 802                         break;
 803                 }
 804         }
 805
 806         if (active_links == 1 || !found_link)
 807                 return 0;
 808
 809         source = found_link->source->entity;
 810         list_for_each_entry(link, &source->links, list) {
 811                 struct media_entity *sink;
 812                 int flags = 0;
 813
 814                 sink = link->sink->entity;
 815
 816                 if (sink == dev->decoder)
 817                         flags = MEDIA_LNK_FL_ENABLED;
 818
 819                 ret = media_entity_setup_link(link, flags);
 820                 if (ret) {
 821                         pr_err(
 822                                 "Couldn't change link %s->%s to %s. Error %d\n",
 823                                 source->name, sink->name,
 824                                 flags ? "enabled" : "disabled",
 825                                 ret);
 826                         return ret;
 827                 } else
 828                         au0828_isocdbg(
 829                                 "link %s->%s was %s\n",
 830                                 source->name, sink->name,
 831                                 flags ? "ENABLED" : "disabled");
 832         }
 833 #endif
 834         return 0;
 835 }
 836
 837 static int queue_setup(struct vb2_queue *vq,
 838                        unsigned int *nbuffers, unsigned int *nplanes,
 839                        unsigned int sizes[], void *alloc_ctxs[])
 840 {
 841         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 842         unsigned long size = dev->height * dev->bytesperline;
 843
 844         if (*nplanes)
 845                 return sizes[0] < size ? -EINVAL : 0;
 846         *nplanes = 1;
 847         sizes[0] = size;
 848
 849         au0828_enable_analog_tuner(dev);
 850
 851         return 0;
 852 }
 853
 854 static int
 855 buffer_prepare(struct vb2_buffer *vb)
 856 {
 857         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 858         struct au0828_buffer *buf = container_of(vbuf,
 859                                 struct au0828_buffer, vb);
 860         struct au0828_dev    *dev = vb2_get_drv_priv(vb->vb2_queue);
 861
 862         buf->length = dev->height * dev->bytesperline;
 863
 864         if (vb2_plane_size(vb, 0) < buf->length) {
 865                 pr_err("%s data will not fit into plane (%lu < %lu)\n",
 866                         __func__, vb2_plane_size(vb, 0), buf->length);
 867                 return -EINVAL;
 868         }
 869         vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length);
 870         return 0;
 871 }
 872
 873 static void
 874 buffer_queue(struct vb2_buffer *vb)
 875 {
 876         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 877         struct au0828_buffer    *buf     = container_of(vbuf,
 878                                                         struct au0828_buffer,
 879                                                         vb);
 880         struct au0828_dev       *dev     = vb2_get_drv_priv(vb->vb2_queue);
 881         struct au0828_dmaqueue  *vidq    = &dev->vidq;
 882         unsigned long flags = 0;
 883
 884         buf->mem = vb2_plane_vaddr(vb, 0);
 885         buf->length = vb2_plane_size(vb, 0);
 886
 887         spin_lock_irqsave(&dev->slock, flags);
 888         list_add_tail(&buf->list, &vidq->active);
 889         spin_unlock_irqrestore(&dev->slock, flags);
 890 }
 891
 892 static int au0828_i2s_init(struct au0828_dev *dev)
 893 {
 894         /* Enable i2s mode */
 895         au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
 896         return 0;
 897 }
 898
 899 /*
 900  * Auvitek au0828 analog stream enable
 901  */
 902 static int au0828_analog_stream_enable(struct au0828_dev *d)
 903 {
 904         struct usb_interface *iface;
 905         int ret, h, w;
 906
 907         dprintk(1, "au0828_analog_stream_enable called\n");
 908
 909         iface = usb_ifnum_to_if(d->usbdev, 0);
 910         if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) {
 911                 dprintk(1, "Changing intf#0 to alt 5\n");
 912                 /* set au0828 interface0 to AS5 here again */
 913                 ret = usb_set_interface(d->usbdev, 0, 5);
 914                 if (ret < 0) {
 915                         pr_info("Au0828 can't set alt setting to 5!\n");
 916                         return -EBUSY;
 917                 }
 918         }
 919
 920         h = d->height / 2 + 2;
 921         w = d->width * 2;
 922
 923         au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
 924         au0828_writereg(d, 0x106, 0x00);
 925         /* set x position */
 926         au0828_writereg(d, 0x110, 0x00);
 927         au0828_writereg(d, 0x111, 0x00);
 928         au0828_writereg(d, 0x114, w & 0xff);
 929         au0828_writereg(d, 0x115, w >> 8);
 930         /* set y position */
 931         au0828_writereg(d, 0x112, 0x00);
 932         au0828_writereg(d, 0x113, 0x00);
 933         au0828_writereg(d, 0x116, h & 0xff);
 934         au0828_writereg(d, 0x117, h >> 8);
 935         au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
 936
 937         return 0;
 938 }
 939
 940 static int au0828_analog_stream_disable(struct au0828_dev *d)
 941 {
 942         dprintk(1, "au0828_analog_stream_disable called\n");
 943         au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
 944         return 0;
 945 }
 946
 947 static void au0828_analog_stream_reset(struct au0828_dev *dev)
 948 {
 949         dprintk(1, "au0828_analog_stream_reset called\n");
 950         au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
 951         mdelay(30);
 952         au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
 953 }
 954
 955 /*
 956  * Some operations needs to stop current streaming
 957  */
 958 static int au0828_stream_interrupt(struct au0828_dev *dev)
 959 {
 960         int ret = 0;
 961
 962         dev->stream_state = STREAM_INTERRUPT;
 963         if (dev->dev_state == DEV_DISCONNECTED)
 964                 return -ENODEV;
 965         else if (ret) {
 966                 dev->dev_state = DEV_MISCONFIGURED;
 967                 dprintk(1, "%s device is misconfigured!\n", __func__);
 968                 return ret;
 969         }
 970         return 0;
 971 }
 972
 973 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
 974 {
 975         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 976         int rc = 0;
 977
 978         dprintk(1, "au0828_start_analog_streaming called %d\n",
 979                 dev->streaming_users);
 980
 981         if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 982                 dev->frame_count = 0;
 983         else
 984                 dev->vbi_frame_count = 0;
 985
 986         if (dev->streaming_users == 0) {
 987                 /* If we were doing ac97 instead of i2s, it would go here...*/
 988                 au0828_i2s_init(dev);
 989                 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
 990                                    AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
 991                                    au0828_isoc_copy);
 992                 if (rc < 0) {
 993                         pr_info("au0828_init_isoc failed\n");
 994                         return rc;
 995                 }
 996
 997                 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 998                         v4l2_device_call_all(&dev->v4l2_dev, 0, video,
 999                                                 s_stream, 1);
1000                         dev->vid_timeout_running = 1;
1001                         mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
1002                 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
1003                         dev->vbi_timeout_running = 1;
1004                         mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1005                 }
1006         }
1007         dev->streaming_users++;
1008         return rc;
1009 }
1010
1011 static void au0828_stop_streaming(struct vb2_queue *vq)
1012 {
1013         struct au0828_dev *dev = vb2_get_drv_priv(vq);
1014         struct au0828_dmaqueue *vidq = &dev->vidq;
1015         unsigned long flags = 0;
1016
1017         dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users);
1018
1019         if (dev->streaming_users-- == 1)
1020                 au0828_uninit_isoc(dev);
1021
1022         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
1023         dev->vid_timeout_running = 0;
1024         del_timer_sync(&dev->vid_timeout);
1025
1026         spin_lock_irqsave(&dev->slock, flags);
1027         if (dev->isoc_ctl.buf != NULL) {
1028                 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf,
1029                                 VB2_BUF_STATE_ERROR);
1030                 dev->isoc_ctl.buf = NULL;
1031         }
1032         while (!list_empty(&vidq->active)) {
1033                 struct au0828_buffer *buf;
1034
1035                 buf = list_entry(vidq->active.next, struct au0828_buffer, list);
1036                 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
1037                 list_del(&buf->list);
1038         }
1039         spin_unlock_irqrestore(&dev->slock, flags);
1040 }
1041
1042 void au0828_stop_vbi_streaming(struct vb2_queue *vq)
1043 {
1044         struct au0828_dev *dev = vb2_get_drv_priv(vq);
1045         struct au0828_dmaqueue *vbiq = &dev->vbiq;
1046         unsigned long flags = 0;
1047
1048         dprintk(1, "au0828_stop_vbi_streaming called %d\n",
1049                 dev->streaming_users);
1050
1051         if (dev->streaming_users-- == 1)
1052                 au0828_uninit_isoc(dev);
1053
1054         spin_lock_irqsave(&dev->slock, flags);
1055         if (dev->isoc_ctl.vbi_buf != NULL) {
1056                 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf,
1057                                 VB2_BUF_STATE_ERROR);
1058                 dev->isoc_ctl.vbi_buf = NULL;
1059         }
1060         while (!list_empty(&vbiq->active)) {
1061                 struct au0828_buffer *buf;
1062
1063                 buf = list_entry(vbiq->active.next, struct au0828_buffer, list);
1064                 list_del(&buf->list);
1065                 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
1066         }
1067         spin_unlock_irqrestore(&dev->slock, flags);
1068
1069         dev->vbi_timeout_running = 0;
1070         del_timer_sync(&dev->vbi_timeout);
1071 }
1072
1073 static struct vb2_ops au0828_video_qops = {
1074         .queue_setup     = queue_setup,
1075         .buf_prepare     = buffer_prepare,
1076         .buf_queue       = buffer_queue,
1077         .start_streaming = au0828_start_analog_streaming,
1078         .stop_streaming  = au0828_stop_streaming,
1079         .wait_prepare    = vb2_ops_wait_prepare,
1080         .wait_finish     = vb2_ops_wait_finish,
1081 };
1082
1083 /* ------------------------------------------------------------------
1084    V4L2 interface
1085    ------------------------------------------------------------------*/
1086 /*
1087  * au0828_analog_unregister
1088  * unregister v4l2 devices
1089  */
1090 int au0828_analog_unregister(struct au0828_dev *dev)
1091 {
1092         dprintk(1, "au0828_analog_unregister called\n");
1093
1094         /* No analog TV */
1095         if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
1096                 return 0;
1097
1098         mutex_lock(&au0828_sysfs_lock);
1099         video_unregister_device(&dev->vdev);
1100         video_unregister_device(&dev->vbi_dev);
1101         mutex_unlock(&au0828_sysfs_lock);
1102
1103         v4l2_device_disconnect(&dev->v4l2_dev);
1104         v4l2_device_put(&dev->v4l2_dev);
1105
1106         return 1;
1107 }
1108
1109 /* This function ensures that video frames continue to be delivered even if
1110    the ITU-656 input isn't receiving any data (thereby preventing applications
1111    such as tvtime from hanging) */
1112 static void au0828_vid_buffer_timeout(unsigned long data)
1113 {
1114         struct au0828_dev *dev = (struct au0828_dev *) data;
1115         struct au0828_dmaqueue *dma_q = &dev->vidq;
1116         struct au0828_buffer *buf;
1117         unsigned char *vid_data;
1118         unsigned long flags = 0;
1119
1120         spin_lock_irqsave(&dev->slock, flags);
1121
1122         buf = dev->isoc_ctl.buf;
1123         if (buf != NULL) {
1124                 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
1125                 memset(vid_data, 0x00, buf->length); /* Blank green frame */
1126                 buffer_filled(dev, dma_q, buf);
1127         }
1128         get_next_buf(dma_q, &buf);
1129
1130         if (dev->vid_timeout_running == 1)
1131                 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
1132
1133         spin_unlock_irqrestore(&dev->slock, flags);
1134 }
1135
1136 static void au0828_vbi_buffer_timeout(unsigned long data)
1137 {
1138         struct au0828_dev *dev = (struct au0828_dev *) data;
1139         struct au0828_dmaqueue *dma_q = &dev->vbiq;
1140         struct au0828_buffer *buf;
1141         unsigned char *vbi_data;
1142         unsigned long flags = 0;
1143
1144         spin_lock_irqsave(&dev->slock, flags);
1145
1146         buf = dev->isoc_ctl.vbi_buf;
1147         if (buf != NULL) {
1148                 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
1149                 memset(vbi_data, 0x00, buf->length);
1150                 buffer_filled(dev, dma_q, buf);
1151         }
1152         vbi_get_next_buf(dma_q, &buf);
1153
1154         if (dev->vbi_timeout_running == 1)
1155                 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1156         spin_unlock_irqrestore(&dev->slock, flags);
1157 }
1158
1159 static int au0828_v4l2_open(struct file *filp)
1160 {
1161         struct au0828_dev *dev = video_drvdata(filp);
1162         int ret;
1163
1164         dprintk(1,
1165                 "%s called std_set %d dev_state %d stream users %d users %d\n",
1166                 __func__, dev->std_set_in_tuner_core, dev->dev_state,
1167                 dev->streaming_users, dev->users);
1168
1169         if (mutex_lock_interruptible(&dev->lock))
1170                 return -ERESTARTSYS;
1171
1172         ret = v4l2_fh_open(filp);
1173         if (ret) {
1174                 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n",
1175                                 __func__, ret);
1176                 mutex_unlock(&dev->lock);
1177                 return ret;
1178         }
1179
1180         if (dev->users == 0) {
1181                 au0828_analog_stream_enable(dev);
1182                 au0828_analog_stream_reset(dev);
1183                 dev->stream_state = STREAM_OFF;
1184                 dev->dev_state |= DEV_INITIALIZED;
1185         }
1186         dev->users++;
1187         mutex_unlock(&dev->lock);
1188         return ret;
1189 }
1190
1191 static int au0828_v4l2_close(struct file *filp)
1192 {
1193         int ret;
1194         struct au0828_dev *dev = video_drvdata(filp);
1195         struct video_device *vdev = video_devdata(filp);
1196
1197         dprintk(1,
1198                 "%s called std_set %d dev_state %d stream users %d users %d\n",
1199                 __func__, dev->std_set_in_tuner_core, dev->dev_state,
1200                 dev->streaming_users, dev->users);
1201
1202         mutex_lock(&dev->lock);
1203         if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) {
1204                 /* Cancel timeout thread in case they didn't call streamoff */
1205                 dev->vid_timeout_running = 0;
1206                 del_timer_sync(&dev->vid_timeout);
1207         } else if (vdev->vfl_type == VFL_TYPE_VBI &&
1208                         dev->vbi_timeout_running) {
1209                 /* Cancel timeout thread in case they didn't call streamoff */
1210                 dev->vbi_timeout_running = 0;
1211                 del_timer_sync(&dev->vbi_timeout);
1212         }
1213
1214         if (dev->dev_state == DEV_DISCONNECTED)
1215                 goto end;
1216
1217         if (dev->users == 1) {
1218                 /* Save some power by putting tuner to sleep */
1219                 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0);
1220                 dev->std_set_in_tuner_core = 0;
1221
1222                 /* When close the device, set the usb intf0 into alt0 to free
1223                    USB bandwidth */
1224                 ret = usb_set_interface(dev->usbdev, 0, 0);
1225                 if (ret < 0)
1226                         pr_info("Au0828 can't set alternate to 0!\n");
1227         }
1228 end:
1229         _vb2_fop_release(filp, NULL);
1230         dev->users--;
1231         mutex_unlock(&dev->lock);
1232         return 0;
1233 }
1234
1235 /* Must be called with dev->lock held */
1236 static void au0828_init_tuner(struct au0828_dev *dev)
1237 {
1238         struct v4l2_frequency f = {
1239                 .frequency = dev->ctrl_freq,
1240                 .type = V4L2_TUNER_ANALOG_TV,
1241         };
1242
1243         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1244                 dev->std_set_in_tuner_core, dev->dev_state);
1245
1246         if (dev->std_set_in_tuner_core)
1247                 return;
1248         dev->std_set_in_tuner_core = 1;
1249         i2c_gate_ctrl(dev, 1);
1250         /* If we've never sent the standard in tuner core, do so now.
1251            We don't do this at device probe because we don't want to
1252            incur the cost of a firmware load */
1253         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std);
1254         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
1255         i2c_gate_ctrl(dev, 0);
1256 }
1257
1258 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
1259                              struct v4l2_format *format)
1260 {
1261         int ret;
1262         int width = format->fmt.pix.width;
1263         int height = format->fmt.pix.height;
1264
1265         /* If they are demanding a format other than the one we support,
1266            bail out (tvtime asks for UYVY and then retries with YUYV) */
1267         if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)
1268                 return -EINVAL;
1269
1270         /* format->fmt.pix.width only support 720 and height 480 */
1271         if (width != 720)
1272                 width = 720;
1273         if (height != 480)
1274                 height = 480;
1275
1276         format->fmt.pix.width = width;
1277         format->fmt.pix.height = height;
1278         format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1279         format->fmt.pix.bytesperline = width * 2;
1280         format->fmt.pix.sizeimage = width * height * 2;
1281         format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1282         format->fmt.pix.field = V4L2_FIELD_INTERLACED;
1283         format->fmt.pix.priv = 0;
1284
1285         if (cmd == VIDIOC_TRY_FMT)
1286                 return 0;
1287
1288         /* maybe set new image format, driver current only support 720*480 */
1289         dev->width = width;
1290         dev->height = height;
1291         dev->frame_size = width * height * 2;
1292         dev->field_size = width * height;
1293         dev->bytesperline = width * 2;
1294
1295         if (dev->stream_state == STREAM_ON) {
1296                 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
1297                 ret = au0828_stream_interrupt(dev);
1298                 if (ret != 0) {
1299                         dprintk(1, "error interrupting video stream!\n");
1300                         return ret;
1301                 }
1302         }
1303
1304         au0828_analog_stream_enable(dev);
1305
1306         return 0;
1307 }
1308
1309 static int vidioc_querycap(struct file *file, void  *priv,
1310                            struct v4l2_capability *cap)
1311 {
1312         struct video_device *vdev = video_devdata(file);
1313         struct au0828_dev *dev = video_drvdata(file);
1314
1315         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1316                 dev->std_set_in_tuner_core, dev->dev_state);
1317
1318         strlcpy(cap->driver, "au0828", sizeof(cap->driver));
1319         strlcpy(cap->card, dev->board.name, sizeof(cap->card));
1320         usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info));
1321
1322         /* set the device capabilities */
1323         cap->device_caps = V4L2_CAP_AUDIO |
1324                 V4L2_CAP_READWRITE |
1325                 V4L2_CAP_STREAMING |
1326                 V4L2_CAP_TUNER;
1327         if (vdev->vfl_type == VFL_TYPE_GRABBER)
1328                 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
1329         else
1330                 cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
1331         cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS |
1332                 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE;
1333         return 0;
1334 }
1335
1336 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1337                                         struct v4l2_fmtdesc *f)
1338 {
1339         if (f->index)
1340                 return -EINVAL;
1341
1342         dprintk(1, "%s called\n", __func__);
1343
1344         f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1345         strcpy(f->description, "Packed YUV2");
1346
1347         f->flags = 0;
1348         f->pixelformat = V4L2_PIX_FMT_UYVY;
1349
1350         return 0;
1351 }
1352
1353 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1354                                         struct v4l2_format *f)
1355 {
1356         struct au0828_dev *dev = video_drvdata(file);
1357
1358         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1359                 dev->std_set_in_tuner_core, dev->dev_state);
1360
1361         f->fmt.pix.width = dev->width;
1362         f->fmt.pix.height = dev->height;
1363         f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1364         f->fmt.pix.bytesperline = dev->bytesperline;
1365         f->fmt.pix.sizeimage = dev->frame_size;
1366         f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
1367         f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1368         f->fmt.pix.priv = 0;
1369         return 0;
1370 }
1371
1372 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1373                                   struct v4l2_format *f)
1374 {
1375         struct au0828_dev *dev = video_drvdata(file);
1376
1377         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1378                 dev->std_set_in_tuner_core, dev->dev_state);
1379
1380         return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
1381 }
1382
1383 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1384                                 struct v4l2_format *f)
1385 {
1386         struct au0828_dev *dev = video_drvdata(file);
1387         int rc;
1388
1389         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1390                 dev->std_set_in_tuner_core, dev->dev_state);
1391
1392         rc = check_dev(dev);
1393         if (rc < 0)
1394                 return rc;
1395
1396         if (vb2_is_busy(&dev->vb_vidq)) {
1397                 pr_info("%s queue busy\n", __func__);
1398                 rc = -EBUSY;
1399                 goto out;
1400         }
1401
1402         rc = au0828_set_format(dev, VIDIOC_S_FMT, f);
1403 out:
1404         return rc;
1405 }
1406
1407 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
1408 {
1409         struct au0828_dev *dev = video_drvdata(file);
1410
1411         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1412                 dev->std_set_in_tuner_core, dev->dev_state);
1413
1414         if (norm == dev->std)
1415                 return 0;
1416
1417         if (dev->streaming_users > 0)
1418                 return -EBUSY;
1419
1420         dev->std = norm;
1421
1422         au0828_init_tuner(dev);
1423
1424         i2c_gate_ctrl(dev, 1);
1425
1426         /*
1427          * FIXME: when we support something other than 60Hz standards,
1428          * we are going to have to make the au0828 bridge adjust the size
1429          * of its capture buffer, which is currently hardcoded at 720x480
1430          */
1431
1432         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm);
1433
1434         i2c_gate_ctrl(dev, 0);
1435
1436         return 0;
1437 }
1438
1439 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
1440 {
1441         struct au0828_dev *dev = video_drvdata(file);
1442
1443         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1444                 dev->std_set_in_tuner_core, dev->dev_state);
1445
1446         *norm = dev->std;
1447         return 0;
1448 }
1449
1450 static int vidioc_enum_input(struct file *file, void *priv,
1451                                 struct v4l2_input *input)
1452 {
1453         struct au0828_dev *dev = video_drvdata(file);
1454         unsigned int tmp;
1455
1456         static const char *inames[] = {
1457                 [AU0828_VMUX_UNDEFINED] = "Undefined",
1458                 [AU0828_VMUX_COMPOSITE] = "Composite",
1459                 [AU0828_VMUX_SVIDEO] = "S-Video",
1460                 [AU0828_VMUX_CABLE] = "Cable TV",
1461                 [AU0828_VMUX_TELEVISION] = "Television",
1462                 [AU0828_VMUX_DVB] = "DVB",
1463                 [AU0828_VMUX_DEBUG] = "tv debug"
1464         };
1465
1466         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1467                 dev->std_set_in_tuner_core, dev->dev_state);
1468
1469         tmp = input->index;
1470
1471         if (tmp >= AU0828_MAX_INPUT)
1472                 return -EINVAL;
1473         if (AUVI_INPUT(tmp).type == 0)
1474                 return -EINVAL;
1475
1476         input->index = tmp;
1477         strcpy(input->name, inames[AUVI_INPUT(tmp).type]);
1478         if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
1479             (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) {
1480                 input->type |= V4L2_INPUT_TYPE_TUNER;
1481                 input->audioset = 1;
1482         } else {
1483                 input->type |= V4L2_INPUT_TYPE_CAMERA;
1484                 input->audioset = 2;
1485         }
1486
1487         input->std = dev->vdev.tvnorms;
1488
1489         return 0;
1490 }
1491
1492 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1493 {
1494         struct au0828_dev *dev = video_drvdata(file);
1495
1496         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1497                 dev->std_set_in_tuner_core, dev->dev_state);
1498
1499         *i = dev->ctrl_input;
1500         return 0;
1501 }
1502
1503 static void au0828_s_input(struct au0828_dev *dev, int index)
1504 {
1505         int i;
1506
1507         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1508                 dev->std_set_in_tuner_core, dev->dev_state);
1509
1510         switch (AUVI_INPUT(index).type) {
1511         case AU0828_VMUX_SVIDEO:
1512                 dev->input_type = AU0828_VMUX_SVIDEO;
1513                 dev->ctrl_ainput = 1;
1514                 break;
1515         case AU0828_VMUX_COMPOSITE:
1516                 dev->input_type = AU0828_VMUX_COMPOSITE;
1517                 dev->ctrl_ainput = 1;
1518                 break;
1519         case AU0828_VMUX_TELEVISION:
1520                 dev->input_type = AU0828_VMUX_TELEVISION;
1521                 dev->ctrl_ainput = 0;
1522                 break;
1523         default:
1524                 dprintk(1, "unknown input type set [%d]\n",
1525                         AUVI_INPUT(index).type);
1526                 break;
1527         }
1528
1529         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
1530                         AUVI_INPUT(index).vmux, 0, 0);
1531
1532         for (i = 0; i < AU0828_MAX_INPUT; i++) {
1533                 int enable = 0;
1534                 if (AUVI_INPUT(i).audio_setup == NULL)
1535                         continue;
1536
1537                 if (i == index)
1538                         enable = 1;
1539                 else
1540                         enable = 0;
1541                 if (enable) {
1542                         (AUVI_INPUT(i).audio_setup)(dev, enable);
1543                 } else {
1544                         /* Make sure we leave it turned on if some
1545                            other input is routed to this callback */
1546                         if ((AUVI_INPUT(i).audio_setup) !=
1547                             ((AUVI_INPUT(index).audio_setup))) {
1548                                 (AUVI_INPUT(i).audio_setup)(dev, enable);
1549                         }
1550                 }
1551         }
1552
1553         v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
1554                         AUVI_INPUT(index).amux, 0, 0);
1555 }
1556
1557 static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
1558 {
1559         struct au0828_dev *dev = video_drvdata(file);
1560
1561         dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
1562                 index);
1563         if (index >= AU0828_MAX_INPUT)
1564                 return -EINVAL;
1565         if (AUVI_INPUT(index).type == 0)
1566                 return -EINVAL;
1567         dev->ctrl_input = index;
1568         au0828_s_input(dev, index);
1569         return 0;
1570 }
1571
1572 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a)
1573 {
1574         if (a->index > 1)
1575                 return -EINVAL;
1576
1577         dprintk(1, "%s called\n", __func__);
1578
1579         if (a->index == 0)
1580                 strcpy(a->name, "Television");
1581         else
1582                 strcpy(a->name, "Line in");
1583
1584         a->capability = V4L2_AUDCAP_STEREO;
1585         return 0;
1586 }
1587
1588 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1589 {
1590         struct au0828_dev *dev = video_drvdata(file);
1591
1592         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1593                 dev->std_set_in_tuner_core, dev->dev_state);
1594
1595         a->index = dev->ctrl_ainput;
1596         if (a->index == 0)
1597                 strcpy(a->name, "Television");
1598         else
1599                 strcpy(a->name, "Line in");
1600
1601         a->capability = V4L2_AUDCAP_STEREO;
1602         return 0;
1603 }
1604
1605 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)
1606 {
1607         struct au0828_dev *dev = video_drvdata(file);
1608
1609         if (a->index != dev->ctrl_ainput)
1610                 return -EINVAL;
1611
1612         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1613                 dev->std_set_in_tuner_core, dev->dev_state);
1614         return 0;
1615 }
1616
1617 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1618 {
1619         struct au0828_dev *dev = video_drvdata(file);
1620
1621         if (t->index != 0)
1622                 return -EINVAL;
1623
1624         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1625                 dev->std_set_in_tuner_core, dev->dev_state);
1626
1627         strcpy(t->name, "Auvitek tuner");
1628
1629         au0828_init_tuner(dev);
1630         i2c_gate_ctrl(dev, 1);
1631         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1632         i2c_gate_ctrl(dev, 0);
1633         return 0;
1634 }
1635
1636 static int vidioc_s_tuner(struct file *file, void *priv,
1637                                 const struct v4l2_tuner *t)
1638 {
1639         struct au0828_dev *dev = video_drvdata(file);
1640
1641         if (t->index != 0)
1642                 return -EINVAL;
1643
1644         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1645                 dev->std_set_in_tuner_core, dev->dev_state);
1646
1647         au0828_init_tuner(dev);
1648         i2c_gate_ctrl(dev, 1);
1649         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1650         i2c_gate_ctrl(dev, 0);
1651
1652         dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
1653                 t->afc);
1654
1655         return 0;
1656
1657 }
1658
1659 static int vidioc_g_frequency(struct file *file, void *priv,
1660                                 struct v4l2_frequency *freq)
1661 {
1662         struct au0828_dev *dev = video_drvdata(file);
1663
1664         if (freq->tuner != 0)
1665                 return -EINVAL;
1666         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1667                 dev->std_set_in_tuner_core, dev->dev_state);
1668         freq->frequency = dev->ctrl_freq;
1669         return 0;
1670 }
1671
1672 static int vidioc_s_frequency(struct file *file, void *priv,
1673                                 const struct v4l2_frequency *freq)
1674 {
1675         struct au0828_dev *dev = video_drvdata(file);
1676         struct v4l2_frequency new_freq = *freq;
1677
1678         if (freq->tuner != 0)
1679                 return -EINVAL;
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         au0828_init_tuner(dev);
1685         i2c_gate_ctrl(dev, 1);
1686
1687         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
1688         /* Get the actual set (and possibly clamped) frequency */
1689         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
1690         dev->ctrl_freq = new_freq.frequency;
1691
1692         i2c_gate_ctrl(dev, 0);
1693
1694         au0828_analog_stream_reset(dev);
1695
1696         return 0;
1697 }
1698
1699
1700 /* RAW VBI ioctls */
1701
1702 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1703                                 struct v4l2_format *format)
1704 {
1705         struct au0828_dev *dev = video_drvdata(file);
1706
1707         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1708                 dev->std_set_in_tuner_core, dev->dev_state);
1709
1710         format->fmt.vbi.samples_per_line = dev->vbi_width;
1711         format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1712         format->fmt.vbi.offset = 0;
1713         format->fmt.vbi.flags = 0;
1714         format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
1715
1716         format->fmt.vbi.count[0] = dev->vbi_height;
1717         format->fmt.vbi.count[1] = dev->vbi_height;
1718         format->fmt.vbi.start[0] = 21;
1719         format->fmt.vbi.start[1] = 284;
1720         memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
1721
1722         return 0;
1723 }
1724
1725 static int vidioc_cropcap(struct file *file, void *priv,
1726                           struct v4l2_cropcap *cc)
1727 {
1728         struct au0828_dev *dev = video_drvdata(file);
1729
1730         if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1731                 return -EINVAL;
1732
1733         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1734                 dev->std_set_in_tuner_core, dev->dev_state);
1735
1736         cc->bounds.left = 0;
1737         cc->bounds.top = 0;
1738         cc->bounds.width = dev->width;
1739         cc->bounds.height = dev->height;
1740
1741         cc->defrect = cc->bounds;
1742
1743         cc->pixelaspect.numerator = 54;
1744         cc->pixelaspect.denominator = 59;
1745
1746         return 0;
1747 }
1748
1749 #ifdef CONFIG_VIDEO_ADV_DEBUG
1750 static int vidioc_g_register(struct file *file, void *priv,
1751                              struct v4l2_dbg_register *reg)
1752 {
1753         struct au0828_dev *dev = video_drvdata(file);
1754
1755         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1756                 dev->std_set_in_tuner_core, dev->dev_state);
1757
1758         reg->val = au0828_read(dev, reg->reg);
1759         reg->size = 1;
1760         return 0;
1761 }
1762
1763 static int vidioc_s_register(struct file *file, void *priv,
1764                              const struct v4l2_dbg_register *reg)
1765 {
1766         struct au0828_dev *dev = video_drvdata(file);
1767
1768         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1769                 dev->std_set_in_tuner_core, dev->dev_state);
1770
1771         return au0828_writereg(dev, reg->reg, reg->val);
1772 }
1773 #endif
1774
1775 static int vidioc_log_status(struct file *file, void *fh)
1776 {
1777         struct video_device *vdev = video_devdata(file);
1778
1779         dprintk(1, "%s called\n", __func__);
1780
1781         v4l2_ctrl_log_status(file, fh);
1782         v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status);
1783         return 0;
1784 }
1785
1786 void au0828_v4l2_suspend(struct au0828_dev *dev)
1787 {
1788         struct urb *urb;
1789         int i;
1790
1791         pr_info("stopping V4L2\n");
1792
1793         if (dev->stream_state == STREAM_ON) {
1794                 pr_info("stopping V4L2 active URBs\n");
1795                 au0828_analog_stream_disable(dev);
1796                 /* stop urbs */
1797                 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1798                         urb = dev->isoc_ctl.urb[i];
1799                         if (urb) {
1800                                 if (!irqs_disabled())
1801                                         usb_kill_urb(urb);
1802                                 else
1803                                         usb_unlink_urb(urb);
1804                         }
1805                 }
1806         }
1807
1808         if (dev->vid_timeout_running)
1809                 del_timer_sync(&dev->vid_timeout);
1810         if (dev->vbi_timeout_running)
1811                 del_timer_sync(&dev->vbi_timeout);
1812 }
1813
1814 void au0828_v4l2_resume(struct au0828_dev *dev)
1815 {
1816         int i, rc;
1817
1818         pr_info("restarting V4L2\n");
1819
1820         if (dev->stream_state == STREAM_ON) {
1821                 au0828_stream_interrupt(dev);
1822                 au0828_init_tuner(dev);
1823         }
1824
1825         if (dev->vid_timeout_running)
1826                 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
1827         if (dev->vbi_timeout_running)
1828                 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1829
1830         /* If we were doing ac97 instead of i2s, it would go here...*/
1831         au0828_i2s_init(dev);
1832
1833         au0828_analog_stream_enable(dev);
1834
1835         if (!(dev->stream_state == STREAM_ON)) {
1836                 au0828_analog_stream_reset(dev);
1837                 /* submit urbs */
1838                 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1839                         rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
1840                         if (rc) {
1841                                 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
1842                                                i, rc);
1843                                 au0828_uninit_isoc(dev);
1844                         }
1845                 }
1846         }
1847 }
1848
1849 static struct v4l2_file_operations au0828_v4l_fops = {
1850         .owner      = THIS_MODULE,
1851         .open       = au0828_v4l2_open,
1852         .release    = au0828_v4l2_close,
1853         .read       = vb2_fop_read,
1854         .poll       = vb2_fop_poll,
1855         .mmap       = vb2_fop_mmap,
1856         .unlocked_ioctl = video_ioctl2,
1857 };
1858
1859 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1860         .vidioc_querycap            = vidioc_querycap,
1861         .vidioc_enum_fmt_vid_cap    = vidioc_enum_fmt_vid_cap,
1862         .vidioc_g_fmt_vid_cap       = vidioc_g_fmt_vid_cap,
1863         .vidioc_try_fmt_vid_cap     = vidioc_try_fmt_vid_cap,
1864         .vidioc_s_fmt_vid_cap       = vidioc_s_fmt_vid_cap,
1865         .vidioc_g_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
1866         .vidioc_try_fmt_vbi_cap     = vidioc_g_fmt_vbi_cap,
1867         .vidioc_s_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
1868         .vidioc_enumaudio           = vidioc_enumaudio,
1869         .vidioc_g_audio             = vidioc_g_audio,
1870         .vidioc_s_audio             = vidioc_s_audio,
1871         .vidioc_cropcap             = vidioc_cropcap,
1872
1873         .vidioc_reqbufs             = vb2_ioctl_reqbufs,
1874         .vidioc_create_bufs         = vb2_ioctl_create_bufs,
1875         .vidioc_prepare_buf         = vb2_ioctl_prepare_buf,
1876         .vidioc_querybuf            = vb2_ioctl_querybuf,
1877         .vidioc_qbuf                = vb2_ioctl_qbuf,
1878         .vidioc_dqbuf               = vb2_ioctl_dqbuf,
1879         .vidioc_expbuf               = vb2_ioctl_expbuf,
1880
1881         .vidioc_s_std               = vidioc_s_std,
1882         .vidioc_g_std               = vidioc_g_std,
1883         .vidioc_enum_input          = vidioc_enum_input,
1884         .vidioc_g_input             = vidioc_g_input,
1885         .vidioc_s_input             = vidioc_s_input,
1886
1887         .vidioc_streamon            = vb2_ioctl_streamon,
1888         .vidioc_streamoff           = vb2_ioctl_streamoff,
1889
1890         .vidioc_g_tuner             = vidioc_g_tuner,
1891         .vidioc_s_tuner             = vidioc_s_tuner,
1892         .vidioc_g_frequency         = vidioc_g_frequency,
1893         .vidioc_s_frequency         = vidioc_s_frequency,
1894 #ifdef CONFIG_VIDEO_ADV_DEBUG
1895         .vidioc_g_register          = vidioc_g_register,
1896         .vidioc_s_register          = vidioc_s_register,
1897 #endif
1898         .vidioc_log_status          = vidioc_log_status,
1899         .vidioc_subscribe_event     = v4l2_ctrl_subscribe_event,
1900         .vidioc_unsubscribe_event   = v4l2_event_unsubscribe,
1901 };
1902
1903 static const struct video_device au0828_video_template = {
1904         .fops                       = &au0828_v4l_fops,
1905         .release                    = video_device_release_empty,
1906         .ioctl_ops                  = &video_ioctl_ops,
1907         .tvnorms                    = V4L2_STD_NTSC_M | V4L2_STD_PAL_M,
1908 };
1909
1910 static int au0828_vb2_setup(struct au0828_dev *dev)
1911 {
1912         int rc;
1913         struct vb2_queue *q;
1914
1915         /* Setup Videobuf2 for Video capture */
1916         q = &dev->vb_vidq;
1917         q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1918         q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1919         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1920         q->drv_priv = dev;
1921         q->buf_struct_size = sizeof(struct au0828_buffer);
1922         q->ops = &au0828_video_qops;
1923         q->mem_ops = &vb2_vmalloc_memops;
1924
1925         rc = vb2_queue_init(q);
1926         if (rc < 0)
1927                 return rc;
1928
1929         /* Setup Videobuf2 for VBI capture */
1930         q = &dev->vb_vbiq;
1931         q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1932         q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1933         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1934         q->drv_priv = dev;
1935         q->buf_struct_size = sizeof(struct au0828_buffer);
1936         q->ops = &au0828_vbi_qops;
1937         q->mem_ops = &vb2_vmalloc_memops;
1938
1939         rc = vb2_queue_init(q);
1940         if (rc < 0)
1941                 return rc;
1942
1943         return 0;
1944 }
1945
1946 static void au0828_analog_create_entities(struct au0828_dev *dev)
1947 {
1948 #if defined(CONFIG_MEDIA_CONTROLLER)
1949         static const char * const inames[] = {
1950                 [AU0828_VMUX_COMPOSITE] = "Composite",
1951                 [AU0828_VMUX_SVIDEO] = "S-Video",
1952                 [AU0828_VMUX_CABLE] = "Cable TV",
1953                 [AU0828_VMUX_TELEVISION] = "Television",
1954                 [AU0828_VMUX_DVB] = "DVB",
1955                 [AU0828_VMUX_DEBUG] = "tv debug"
1956         };
1957         int ret, i;
1958
1959         /* Initialize Video and VBI pads */
1960         dev->video_pad.flags = MEDIA_PAD_FL_SINK;
1961         ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad);
1962         if (ret < 0)
1963                 pr_err("failed to initialize video media entity!\n");
1964
1965         dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
1966         ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad);
1967         if (ret < 0)
1968                 pr_err("failed to initialize vbi media entity!\n");
1969
1970         /* Create entities for each input connector */
1971         for (i = 0; i < AU0828_MAX_INPUT; i++) {
1972                 struct media_entity *ent = &dev->input_ent[i];
1973
1974                 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
1975                         break;
1976
1977                 ent->name = inames[AUVI_INPUT(i).type];
1978                 ent->flags = MEDIA_ENT_FL_CONNECTOR;
1979                 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
1980
1981                 switch (AUVI_INPUT(i).type) {
1982                 case AU0828_VMUX_COMPOSITE:
1983                         ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
1984                         break;
1985                 case AU0828_VMUX_SVIDEO:
1986                         ent->function = MEDIA_ENT_F_CONN_SVIDEO;
1987                         break;
1988                 case AU0828_VMUX_CABLE:
1989                 case AU0828_VMUX_TELEVISION:
1990                 case AU0828_VMUX_DVB:
1991                         ent->function = MEDIA_ENT_F_CONN_RF;
1992                         break;
1993                 default: /* AU0828_VMUX_DEBUG */
1994                         ent->function = MEDIA_ENT_F_CONN_TEST;
1995                         break;
1996                 }
1997
1998                 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
1999                 if (ret < 0)
2000                         pr_err("failed to initialize input pad[%d]!\n", i);
2001
2002                 ret = media_device_register_entity(dev->media_dev, ent);
2003                 if (ret < 0)
2004                         pr_err("failed to register input entity %d!\n", i);
2005         }
2006 #endif
2007 }
2008
2009 /**************************************************************************/
2010
2011 int au0828_analog_register(struct au0828_dev *dev,
2012                            struct usb_interface *interface)
2013 {
2014         int retval = -ENOMEM;
2015         struct usb_host_interface *iface_desc;
2016         struct usb_endpoint_descriptor *endpoint;
2017         int i, ret;
2018
2019         dprintk(1, "au0828_analog_register called for intf#%d!\n",
2020                 interface->cur_altsetting->desc.bInterfaceNumber);
2021
2022         /* No analog TV */
2023         if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
2024                 return 0;
2025
2026         /* set au0828 usb interface0 to as5 */
2027         retval = usb_set_interface(dev->usbdev,
2028                         interface->cur_altsetting->desc.bInterfaceNumber, 5);
2029         if (retval != 0) {
2030                 pr_info("Failure setting usb interface0 to as5\n");
2031                 return retval;
2032         }
2033
2034         /* Figure out which endpoint has the isoc interface */
2035         iface_desc = interface->cur_altsetting;
2036         for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
2037                 endpoint = &iface_desc->endpoint[i].desc;
2038                 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
2039                      == USB_DIR_IN) &&
2040                     ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
2041                      == USB_ENDPOINT_XFER_ISOC)) {
2042
2043                         /* we find our isoc in endpoint */
2044                         u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
2045                         dev->max_pkt_size = (tmp & 0x07ff) *
2046                                 (((tmp & 0x1800) >> 11) + 1);
2047                         dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
2048                         dprintk(1,
2049                                 "Found isoc endpoint 0x%02x, max size = %d\n",
2050                                 dev->isoc_in_endpointaddr, dev->max_pkt_size);
2051                 }
2052         }
2053         if (!(dev->isoc_in_endpointaddr)) {
2054                 pr_info("Could not locate isoc endpoint\n");
2055                 return -ENODEV;
2056         }
2057
2058         init_waitqueue_head(&dev->open);
2059         spin_lock_init(&dev->slock);
2060
2061         /* init video dma queues */
2062         INIT_LIST_HEAD(&dev->vidq.active);
2063         INIT_LIST_HEAD(&dev->vbiq.active);
2064
2065         setup_timer(&dev->vid_timeout, au0828_vid_buffer_timeout,
2066                     (unsigned long)dev);
2067         setup_timer(&dev->vbi_timeout, au0828_vbi_buffer_timeout,
2068                     (unsigned long)dev);
2069
2070         dev->width = NTSC_STD_W;
2071         dev->height = NTSC_STD_H;
2072         dev->field_size = dev->width * dev->height;
2073         dev->frame_size = dev->field_size << 1;
2074         dev->bytesperline = dev->width << 1;
2075         dev->vbi_width = 720;
2076         dev->vbi_height = 1;
2077         dev->ctrl_ainput = 0;
2078         dev->ctrl_freq = 960;
2079         dev->std = V4L2_STD_NTSC_M;
2080         au0828_s_input(dev, 0);
2081
2082         mutex_init(&dev->vb_queue_lock);
2083         mutex_init(&dev->vb_vbi_queue_lock);
2084
2085         /* Fill the video capture device struct */
2086         dev->vdev = au0828_video_template;
2087         dev->vdev.v4l2_dev = &dev->v4l2_dev;
2088         dev->vdev.lock = &dev->lock;
2089         dev->vdev.queue = &dev->vb_vidq;
2090         dev->vdev.queue->lock = &dev->vb_queue_lock;
2091         strcpy(dev->vdev.name, "au0828a video");
2092
2093         /* Setup the VBI device */
2094         dev->vbi_dev = au0828_video_template;
2095         dev->vbi_dev.v4l2_dev = &dev->v4l2_dev;
2096         dev->vbi_dev.lock = &dev->lock;
2097         dev->vbi_dev.queue = &dev->vb_vbiq;
2098         dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock;
2099         strcpy(dev->vbi_dev.name, "au0828a vbi");
2100
2101         /* Init entities at the Media Controller */
2102         au0828_analog_create_entities(dev);
2103
2104         /* initialize videobuf2 stuff */
2105         retval = au0828_vb2_setup(dev);
2106         if (retval != 0) {
2107                 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n",
2108                         retval);
2109                 return -ENODEV;
2110         }
2111
2112         /* Register the v4l2 device */
2113         video_set_drvdata(&dev->vdev, dev);
2114         retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1);
2115         if (retval != 0) {
2116                 dprintk(1, "unable to register video device (error = %d).\n",
2117                         retval);
2118                 ret = -ENODEV;
2119                 goto err_reg_vdev;
2120         }
2121
2122         /* Register the vbi device */
2123         video_set_drvdata(&dev->vbi_dev, dev);
2124         retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1);
2125         if (retval != 0) {
2126                 dprintk(1, "unable to register vbi device (error = %d).\n",
2127                         retval);
2128                 ret = -ENODEV;
2129                 goto err_reg_vbi_dev;
2130         }
2131         retval = au0828_create_media_graph(dev);
2132         if (retval) {
2133                 pr_err("%s() au0282_dev_register failed to create graph\n",
2134                         __func__);
2135                 ret = -ENODEV;
2136                 goto err_reg_vbi_dev;
2137         }
2138
2139
2140         dprintk(1, "%s completed!\n", __func__);
2141
2142         return 0;
2143
2144 err_reg_vbi_dev:
2145         video_unregister_device(&dev->vdev);
2146 err_reg_vdev:
2147         vb2_queue_release(&dev->vb_vidq);
2148         vb2_queue_release(&dev->vb_vbiq);
2149         return ret;
2150 }
2151