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 (test_bit(DEV_DISCONNECTED, &dev->dev_state)) {
 110                 pr_info("v4l2 ioctl: device not present\n");
 111                 return -ENODEV;
 112         }
 113
 114         if (test_bit(DEV_MISCONFIGURED, &dev->dev_state)) {
 115                 pr_info("v4l2 ioctl: device is misconfigured; close and open it again\n");
 116                 return -EIO;
 117         }
 118         return 0;
 119 }
 120
 121 /*
 122  * IRQ callback, called by URB callback
 123  */
 124 static void au0828_irq_callback(struct urb *urb)
 125 {
 126         struct au0828_dmaqueue  *dma_q = urb->context;
 127         struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
 128         unsigned long flags = 0;
 129         int i;
 130
 131         switch (urb->status) {
 132         case 0:             /* success */
 133         case -ETIMEDOUT:    /* NAK */
 134                 break;
 135         case -ECONNRESET:   /* kill */
 136         case -ENOENT:
 137         case -ESHUTDOWN:
 138                 au0828_isocdbg("au0828_irq_callback called: status kill\n");
 139                 return;
 140         default:            /* unknown error */
 141                 au0828_isocdbg("urb completition error %d.\n", urb->status);
 142                 break;
 143         }
 144
 145         /* Copy data from URB */
 146         spin_lock_irqsave(&dev->slock, flags);
 147         dev->isoc_ctl.isoc_copy(dev, urb);
 148         spin_unlock_irqrestore(&dev->slock, flags);
 149
 150         /* Reset urb buffers */
 151         for (i = 0; i < urb->number_of_packets; i++) {
 152                 urb->iso_frame_desc[i].status = 0;
 153                 urb->iso_frame_desc[i].actual_length = 0;
 154         }
 155         urb->status = 0;
 156
 157         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 158         if (urb->status) {
 159                 au0828_isocdbg("urb resubmit failed (error=%i)\n",
 160                                urb->status);
 161         }
 162         dev->stream_state = STREAM_ON;
 163 }
 164
 165 /*
 166  * Stop and Deallocate URBs
 167  */
 168 static void au0828_uninit_isoc(struct au0828_dev *dev)
 169 {
 170         struct urb *urb;
 171         int i;
 172
 173         au0828_isocdbg("au0828: called au0828_uninit_isoc\n");
 174
 175         dev->isoc_ctl.nfields = -1;
 176         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 177                 urb = dev->isoc_ctl.urb[i];
 178                 if (urb) {
 179                         if (!irqs_disabled())
 180                                 usb_kill_urb(urb);
 181                         else
 182                                 usb_unlink_urb(urb);
 183
 184                         if (dev->isoc_ctl.transfer_buffer[i]) {
 185                                 usb_free_coherent(dev->usbdev,
 186                                         urb->transfer_buffer_length,
 187                                         dev->isoc_ctl.transfer_buffer[i],
 188                                         urb->transfer_dma);
 189                         }
 190                         usb_free_urb(urb);
 191                         dev->isoc_ctl.urb[i] = NULL;
 192                 }
 193                 dev->isoc_ctl.transfer_buffer[i] = NULL;
 194         }
 195
 196         kfree(dev->isoc_ctl.urb);
 197         kfree(dev->isoc_ctl.transfer_buffer);
 198
 199         dev->isoc_ctl.urb = NULL;
 200         dev->isoc_ctl.transfer_buffer = NULL;
 201         dev->isoc_ctl.num_bufs = 0;
 202
 203         dev->stream_state = STREAM_OFF;
 204 }
 205
 206 /*
 207  * Allocate URBs and start IRQ
 208  */
 209 static int au0828_init_isoc(struct au0828_dev *dev, int max_packets,
 210                             int num_bufs, int max_pkt_size,
 211                             int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb))
 212 {
 213         struct au0828_dmaqueue *dma_q = &dev->vidq;
 214         int i;
 215         int sb_size, pipe;
 216         struct urb *urb;
 217         int j, k;
 218         int rc;
 219
 220         au0828_isocdbg("au0828: called au0828_prepare_isoc\n");
 221
 222         dev->isoc_ctl.isoc_copy = isoc_copy;
 223         dev->isoc_ctl.num_bufs = num_bufs;
 224
 225         dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs,  GFP_KERNEL);
 226         if (!dev->isoc_ctl.urb) {
 227                 au0828_isocdbg("cannot alloc memory for usb buffers\n");
 228                 return -ENOMEM;
 229         }
 230
 231         dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs,
 232                                               GFP_KERNEL);
 233         if (!dev->isoc_ctl.transfer_buffer) {
 234                 au0828_isocdbg("cannot allocate memory for usb transfer\n");
 235                 kfree(dev->isoc_ctl.urb);
 236                 return -ENOMEM;
 237         }
 238
 239         dev->isoc_ctl.max_pkt_size = max_pkt_size;
 240         dev->isoc_ctl.buf = NULL;
 241
 242         sb_size = max_packets * dev->isoc_ctl.max_pkt_size;
 243
 244         /* allocate urbs and transfer buffers */
 245         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 246                 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
 247                 if (!urb) {
 248                         au0828_isocdbg("cannot alloc isoc_ctl.urb %i\n", i);
 249                         au0828_uninit_isoc(dev);
 250                         return -ENOMEM;
 251                 }
 252                 dev->isoc_ctl.urb[i] = urb;
 253
 254                 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev,
 255                         sb_size, GFP_KERNEL, &urb->transfer_dma);
 256                 if (!dev->isoc_ctl.transfer_buffer[i]) {
 257                         printk("unable to allocate %i bytes for transfer"
 258                                         " buffer %i%s\n",
 259                                         sb_size, i,
 260                                         in_interrupt() ? " while in int" : "");
 261                         au0828_uninit_isoc(dev);
 262                         return -ENOMEM;
 263                 }
 264                 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
 265
 266                 pipe = usb_rcvisocpipe(dev->usbdev,
 267                                        dev->isoc_in_endpointaddr),
 268
 269                 usb_fill_int_urb(urb, dev->usbdev, pipe,
 270                                  dev->isoc_ctl.transfer_buffer[i], sb_size,
 271                                  au0828_irq_callback, dma_q, 1);
 272
 273                 urb->number_of_packets = max_packets;
 274                 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
 275
 276                 k = 0;
 277                 for (j = 0; j < max_packets; j++) {
 278                         urb->iso_frame_desc[j].offset = k;
 279                         urb->iso_frame_desc[j].length =
 280                                                 dev->isoc_ctl.max_pkt_size;
 281                         k += dev->isoc_ctl.max_pkt_size;
 282                 }
 283         }
 284
 285         /* submit urbs and enables IRQ */
 286         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 287                 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
 288                 if (rc) {
 289                         au0828_isocdbg("submit of urb %i failed (error=%i)\n",
 290                                        i, rc);
 291                         au0828_uninit_isoc(dev);
 292                         return rc;
 293                 }
 294         }
 295
 296         return 0;
 297 }
 298
 299 /*
 300  * Announces that a buffer were filled and request the next
 301  */
 302 static inline void buffer_filled(struct au0828_dev *dev,
 303                                  struct au0828_dmaqueue *dma_q,
 304                                  struct au0828_buffer *buf)
 305 {
 306         struct vb2_v4l2_buffer *vb = &buf->vb;
 307         struct vb2_queue *q = vb->vb2_buf.vb2_queue;
 308
 309         /* Advice that buffer was filled */
 310         au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field);
 311
 312         if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 313                 vb->sequence = dev->frame_count++;
 314         else
 315                 vb->sequence = dev->vbi_frame_count++;
 316
 317         vb->field = V4L2_FIELD_INTERLACED;
 318         vb->vb2_buf.timestamp = ktime_get_ns();
 319         vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE);
 320 }
 321
 322 /*
 323  * Identify the buffer header type and properly handles
 324  */
 325 static void au0828_copy_video(struct au0828_dev *dev,
 326                               struct au0828_dmaqueue  *dma_q,
 327                               struct au0828_buffer *buf,
 328                               unsigned char *p,
 329                               unsigned char *outp, unsigned long len)
 330 {
 331         void *fieldstart, *startwrite, *startread;
 332         int  linesdone, currlinedone, offset, lencopy, remain;
 333         int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */
 334
 335         if (len == 0)
 336                 return;
 337
 338         if (dma_q->pos + len > buf->length)
 339                 len = buf->length - dma_q->pos;
 340
 341         startread = p;
 342         remain = len;
 343
 344         /* Interlaces frame */
 345         if (buf->top_field)
 346                 fieldstart = outp;
 347         else
 348                 fieldstart = outp + bytesperline;
 349
 350         linesdone = dma_q->pos / bytesperline;
 351         currlinedone = dma_q->pos % bytesperline;
 352         offset = linesdone * bytesperline * 2 + currlinedone;
 353         startwrite = fieldstart + offset;
 354         lencopy = bytesperline - currlinedone;
 355         lencopy = lencopy > remain ? remain : lencopy;
 356
 357         if ((char *)startwrite + lencopy > (char *)outp + buf->length) {
 358                 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
 359                                ((char *)startwrite + lencopy) -
 360                                ((char *)outp + buf->length));
 361                 remain = (char *)outp + buf->length - (char *)startwrite;
 362                 lencopy = remain;
 363         }
 364         if (lencopy <= 0)
 365                 return;
 366         memcpy(startwrite, startread, lencopy);
 367
 368         remain -= lencopy;
 369
 370         while (remain > 0) {
 371                 startwrite += lencopy + bytesperline;
 372                 startread += lencopy;
 373                 if (bytesperline > remain)
 374                         lencopy = remain;
 375                 else
 376                         lencopy = bytesperline;
 377
 378                 if ((char *)startwrite + lencopy > (char *)outp +
 379                     buf->length) {
 380                         au0828_isocdbg("Overflow %zi bytes past buf end (2)\n",
 381                                        ((char *)startwrite + lencopy) -
 382                                        ((char *)outp + buf->length));
 383                         lencopy = remain = (char *)outp + buf->length -
 384                                            (char *)startwrite;
 385                 }
 386                 if (lencopy <= 0)
 387                         break;
 388
 389                 memcpy(startwrite, startread, lencopy);
 390
 391                 remain -= lencopy;
 392         }
 393
 394         if (offset > 1440) {
 395                 /* We have enough data to check for greenscreen */
 396                 if (outp[0] < 0x60 && outp[1440] < 0x60)
 397                         dev->greenscreen_detected = 1;
 398         }
 399
 400         dma_q->pos += len;
 401 }
 402
 403 /*
 404  * video-buf generic routine to get the next available buffer
 405  */
 406 static inline void get_next_buf(struct au0828_dmaqueue *dma_q,
 407                                 struct au0828_buffer **buf)
 408 {
 409         struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
 410
 411         if (list_empty(&dma_q->active)) {
 412                 au0828_isocdbg("No active queue to serve\n");
 413                 dev->isoc_ctl.buf = NULL;
 414                 *buf = NULL;
 415                 return;
 416         }
 417
 418         /* Get the next buffer */
 419         *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
 420         /* Cleans up buffer - Useful for testing for frame/URB loss */
 421         list_del(&(*buf)->list);
 422         dma_q->pos = 0;
 423         (*buf)->vb_buf = (*buf)->mem;
 424         dev->isoc_ctl.buf = *buf;
 425
 426         return;
 427 }
 428
 429 static void au0828_copy_vbi(struct au0828_dev *dev,
 430                               struct au0828_dmaqueue  *dma_q,
 431                               struct au0828_buffer *buf,
 432                               unsigned char *p,
 433                               unsigned char *outp, unsigned long len)
 434 {
 435         unsigned char *startwrite, *startread;
 436         int bytesperline;
 437         int i, j = 0;
 438
 439         if (dev == NULL) {
 440                 au0828_isocdbg("dev is null\n");
 441                 return;
 442         }
 443
 444         if (dma_q == NULL) {
 445                 au0828_isocdbg("dma_q is null\n");
 446                 return;
 447         }
 448         if (buf == NULL)
 449                 return;
 450         if (p == NULL) {
 451                 au0828_isocdbg("p is null\n");
 452                 return;
 453         }
 454         if (outp == NULL) {
 455                 au0828_isocdbg("outp is null\n");
 456                 return;
 457         }
 458
 459         bytesperline = dev->vbi_width;
 460
 461         if (dma_q->pos + len > buf->length)
 462                 len = buf->length - dma_q->pos;
 463
 464         startread = p;
 465         startwrite = outp + (dma_q->pos / 2);
 466
 467         /* Make sure the bottom field populates the second half of the frame */
 468         if (buf->top_field == 0)
 469                 startwrite += bytesperline * dev->vbi_height;
 470
 471         for (i = 0; i < len; i += 2)
 472                 startwrite[j++] = startread[i+1];
 473
 474         dma_q->pos += len;
 475 }
 476
 477
 478 /*
 479  * video-buf generic routine to get the next available VBI buffer
 480  */
 481 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q,
 482                                     struct au0828_buffer **buf)
 483 {
 484         struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq);
 485
 486         if (list_empty(&dma_q->active)) {
 487                 au0828_isocdbg("No active queue to serve\n");
 488                 dev->isoc_ctl.vbi_buf = NULL;
 489                 *buf = NULL;
 490                 return;
 491         }
 492
 493         /* Get the next buffer */
 494         *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
 495         /* Cleans up buffer - Useful for testing for frame/URB loss */
 496         list_del(&(*buf)->list);
 497         dma_q->pos = 0;
 498         (*buf)->vb_buf = (*buf)->mem;
 499         dev->isoc_ctl.vbi_buf = *buf;
 500         return;
 501 }
 502
 503 /*
 504  * Controls the isoc copy of each urb packet
 505  */
 506 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
 507 {
 508         struct au0828_buffer    *buf;
 509         struct au0828_buffer    *vbi_buf;
 510         struct au0828_dmaqueue  *dma_q = urb->context;
 511         struct au0828_dmaqueue  *vbi_dma_q = &dev->vbiq;
 512         unsigned char *outp = NULL;
 513         unsigned char *vbioutp = NULL;
 514         int i, len = 0, rc = 1;
 515         unsigned char *p;
 516         unsigned char fbyte;
 517         unsigned int vbi_field_size;
 518         unsigned int remain, lencopy;
 519
 520         if (!dev)
 521                 return 0;
 522
 523         if (test_bit(DEV_DISCONNECTED, &dev->dev_state) ||
 524             test_bit(DEV_MISCONFIGURED, &dev->dev_state))
 525                 return 0;
 526
 527         if (urb->status < 0) {
 528                 print_err_status(dev, -1, urb->status);
 529                 if (urb->status == -ENOENT)
 530                         return 0;
 531         }
 532
 533         buf = dev->isoc_ctl.buf;
 534         if (buf != NULL)
 535                 outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
 536
 537         vbi_buf = dev->isoc_ctl.vbi_buf;
 538         if (vbi_buf != NULL)
 539                 vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0);
 540
 541         for (i = 0; i < urb->number_of_packets; i++) {
 542                 int status = urb->iso_frame_desc[i].status;
 543
 544                 if (status < 0) {
 545                         print_err_status(dev, i, status);
 546                         if (urb->iso_frame_desc[i].status != -EPROTO)
 547                                 continue;
 548                 }
 549
 550                 if (urb->iso_frame_desc[i].actual_length <= 0)
 551                         continue;
 552
 553                 if (urb->iso_frame_desc[i].actual_length >
 554                                                 dev->max_pkt_size) {
 555                         au0828_isocdbg("packet bigger than packet size");
 556                         continue;
 557                 }
 558
 559                 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
 560                 fbyte = p[0];
 561                 len = urb->iso_frame_desc[i].actual_length - 4;
 562                 p += 4;
 563
 564                 if (fbyte & 0x80) {
 565                         len -= 4;
 566                         p += 4;
 567                         au0828_isocdbg("Video frame %s\n",
 568                                        (fbyte & 0x40) ? "odd" : "even");
 569                         if (fbyte & 0x40) {
 570                                 /* VBI */
 571                                 if (vbi_buf != NULL)
 572                                         buffer_filled(dev, vbi_dma_q, vbi_buf);
 573                                 vbi_get_next_buf(vbi_dma_q, &vbi_buf);
 574                                 if (vbi_buf == NULL)
 575                                         vbioutp = NULL;
 576                                 else
 577                                         vbioutp = vb2_plane_vaddr(
 578                                                 &vbi_buf->vb.vb2_buf, 0);
 579
 580                                 /* Video */
 581                                 if (buf != NULL)
 582                                         buffer_filled(dev, dma_q, buf);
 583                                 get_next_buf(dma_q, &buf);
 584                                 if (buf == NULL)
 585                                         outp = NULL;
 586                                 else
 587                                         outp = vb2_plane_vaddr(
 588                                                 &buf->vb.vb2_buf, 0);
 589
 590                                 /* As long as isoc traffic is arriving, keep
 591                                    resetting the timer */
 592                                 if (dev->vid_timeout_running)
 593                                         mod_timer(&dev->vid_timeout,
 594                                                   jiffies + (HZ / 10));
 595                                 if (dev->vbi_timeout_running)
 596                                         mod_timer(&dev->vbi_timeout,
 597                                                   jiffies + (HZ / 10));
 598                         }
 599
 600                         if (buf != NULL) {
 601                                 if (fbyte & 0x40)
 602                                         buf->top_field = 1;
 603                                 else
 604                                         buf->top_field = 0;
 605                         }
 606
 607                         if (vbi_buf != NULL) {
 608                                 if (fbyte & 0x40)
 609                                         vbi_buf->top_field = 1;
 610                                 else
 611                                         vbi_buf->top_field = 0;
 612                         }
 613
 614                         dev->vbi_read = 0;
 615                         vbi_dma_q->pos = 0;
 616                         dma_q->pos = 0;
 617                 }
 618
 619                 vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
 620                 if (dev->vbi_read < vbi_field_size) {
 621                         remain  = vbi_field_size - dev->vbi_read;
 622                         if (len < remain)
 623                                 lencopy = len;
 624                         else
 625                                 lencopy = remain;
 626
 627                         if (vbi_buf != NULL)
 628                                 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
 629                                                 vbioutp, len);
 630
 631                         len -= lencopy;
 632                         p += lencopy;
 633                         dev->vbi_read += lencopy;
 634                 }
 635
 636                 if (dev->vbi_read >= vbi_field_size && buf != NULL)
 637                         au0828_copy_video(dev, dma_q, buf, p, outp, len);
 638         }
 639         return rc;
 640 }
 641
 642 void au0828_usb_v4l2_media_release(struct au0828_dev *dev)
 643 {
 644 #ifdef CONFIG_MEDIA_CONTROLLER
 645         int i;
 646
 647         for (i = 0; i < AU0828_MAX_INPUT; i++) {
 648                 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
 649                         return;
 650                 media_device_unregister_entity(&dev->input_ent[i]);
 651         }
 652 #endif
 653 }
 654
 655 static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev)
 656 {
 657         struct au0828_dev *dev =
 658                 container_of(v4l2_dev, struct au0828_dev, v4l2_dev);
 659
 660         v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl);
 661         v4l2_device_unregister(&dev->v4l2_dev);
 662         au0828_usb_v4l2_media_release(dev);
 663         au0828_usb_release(dev);
 664 }
 665
 666 int au0828_v4l2_device_register(struct usb_interface *interface,
 667                                 struct au0828_dev *dev)
 668 {
 669         int retval;
 670
 671         if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
 672                 return 0;
 673
 674         /* Create the v4l2_device */
 675 #ifdef CONFIG_MEDIA_CONTROLLER
 676         dev->v4l2_dev.mdev = dev->media_dev;
 677 #endif
 678         retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
 679         if (retval) {
 680                 pr_err("%s() v4l2_device_register failed\n",
 681                        __func__);
 682                 mutex_unlock(&dev->lock);
 683                 kfree(dev);
 684                 return retval;
 685         }
 686
 687         dev->v4l2_dev.release = au0828_usb_v4l2_release;
 688
 689         /* This control handler will inherit the controls from au8522 */
 690         retval = v4l2_ctrl_handler_init(&dev->v4l2_ctrl_hdl, 4);
 691         if (retval) {
 692                 pr_err("%s() v4l2_ctrl_handler_init failed\n",
 693                        __func__);
 694                 mutex_unlock(&dev->lock);
 695                 kfree(dev);
 696                 return retval;
 697         }
 698         dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl;
 699
 700         return 0;
 701 }
 702
 703 static int queue_setup(struct vb2_queue *vq,
 704                        unsigned int *nbuffers, unsigned int *nplanes,
 705                        unsigned int sizes[], void *alloc_ctxs[])
 706 {
 707         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 708         unsigned long size = dev->height * dev->bytesperline;
 709
 710         if (*nplanes)
 711                 return sizes[0] < size ? -EINVAL : 0;
 712         *nplanes = 1;
 713         sizes[0] = size;
 714         return 0;
 715 }
 716
 717 static int
 718 buffer_prepare(struct vb2_buffer *vb)
 719 {
 720         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 721         struct au0828_buffer *buf = container_of(vbuf,
 722                                 struct au0828_buffer, vb);
 723         struct au0828_dev    *dev = vb2_get_drv_priv(vb->vb2_queue);
 724
 725         buf->length = dev->height * dev->bytesperline;
 726
 727         if (vb2_plane_size(vb, 0) < buf->length) {
 728                 pr_err("%s data will not fit into plane (%lu < %lu)\n",
 729                         __func__, vb2_plane_size(vb, 0), buf->length);
 730                 return -EINVAL;
 731         }
 732         vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length);
 733         return 0;
 734 }
 735
 736 static void
 737 buffer_queue(struct vb2_buffer *vb)
 738 {
 739         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 740         struct au0828_buffer    *buf     = container_of(vbuf,
 741                                                         struct au0828_buffer,
 742                                                         vb);
 743         struct au0828_dev       *dev     = vb2_get_drv_priv(vb->vb2_queue);
 744         struct au0828_dmaqueue  *vidq    = &dev->vidq;
 745         unsigned long flags = 0;
 746
 747         buf->mem = vb2_plane_vaddr(vb, 0);
 748         buf->length = vb2_plane_size(vb, 0);
 749
 750         spin_lock_irqsave(&dev->slock, flags);
 751         list_add_tail(&buf->list, &vidq->active);
 752         spin_unlock_irqrestore(&dev->slock, flags);
 753 }
 754
 755 static int au0828_i2s_init(struct au0828_dev *dev)
 756 {
 757         /* Enable i2s mode */
 758         au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
 759         return 0;
 760 }
 761
 762 /*
 763  * Auvitek au0828 analog stream enable
 764  */
 765 static int au0828_analog_stream_enable(struct au0828_dev *d)
 766 {
 767         struct usb_interface *iface;
 768         int ret, h, w;
 769
 770         dprintk(1, "au0828_analog_stream_enable called\n");
 771
 772         iface = usb_ifnum_to_if(d->usbdev, 0);
 773         if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) {
 774                 dprintk(1, "Changing intf#0 to alt 5\n");
 775                 /* set au0828 interface0 to AS5 here again */
 776                 ret = usb_set_interface(d->usbdev, 0, 5);
 777                 if (ret < 0) {
 778                         pr_info("Au0828 can't set alt setting to 5!\n");
 779                         return -EBUSY;
 780                 }
 781         }
 782
 783         h = d->height / 2 + 2;
 784         w = d->width * 2;
 785
 786         au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
 787         au0828_writereg(d, 0x106, 0x00);
 788         /* set x position */
 789         au0828_writereg(d, 0x110, 0x00);
 790         au0828_writereg(d, 0x111, 0x00);
 791         au0828_writereg(d, 0x114, w & 0xff);
 792         au0828_writereg(d, 0x115, w >> 8);
 793         /* set y position */
 794         au0828_writereg(d, 0x112, 0x00);
 795         au0828_writereg(d, 0x113, 0x00);
 796         au0828_writereg(d, 0x116, h & 0xff);
 797         au0828_writereg(d, 0x117, h >> 8);
 798         au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
 799
 800         return 0;
 801 }
 802
 803 static int au0828_analog_stream_disable(struct au0828_dev *d)
 804 {
 805         dprintk(1, "au0828_analog_stream_disable called\n");
 806         au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
 807         return 0;
 808 }
 809
 810 static void au0828_analog_stream_reset(struct au0828_dev *dev)
 811 {
 812         dprintk(1, "au0828_analog_stream_reset called\n");
 813         au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
 814         mdelay(30);
 815         au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
 816 }
 817
 818 /*
 819  * Some operations needs to stop current streaming
 820  */
 821 static int au0828_stream_interrupt(struct au0828_dev *dev)
 822 {
 823         int ret = 0;
 824
 825         dev->stream_state = STREAM_INTERRUPT;
 826         if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
 827                 return -ENODEV;
 828         else if (ret) {
 829                 set_bit(DEV_MISCONFIGURED, &dev->dev_state);
 830                 dprintk(1, "%s device is misconfigured!\n", __func__);
 831                 return ret;
 832         }
 833         return 0;
 834 }
 835
 836 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
 837 {
 838         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 839         int rc = 0;
 840
 841         dprintk(1, "au0828_start_analog_streaming called %d\n",
 842                 dev->streaming_users);
 843
 844         if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 845                 dev->frame_count = 0;
 846         else
 847                 dev->vbi_frame_count = 0;
 848
 849         if (dev->streaming_users == 0) {
 850                 /* If we were doing ac97 instead of i2s, it would go here...*/
 851                 au0828_i2s_init(dev);
 852                 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
 853                                    AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
 854                                    au0828_isoc_copy);
 855                 if (rc < 0) {
 856                         pr_info("au0828_init_isoc failed\n");
 857                         return rc;
 858                 }
 859
 860                 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 861                         v4l2_device_call_all(&dev->v4l2_dev, 0, video,
 862                                                 s_stream, 1);
 863                         dev->vid_timeout_running = 1;
 864                         mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
 865                 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
 866                         dev->vbi_timeout_running = 1;
 867                         mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
 868                 }
 869         }
 870         dev->streaming_users++;
 871         return rc;
 872 }
 873
 874 static void au0828_stop_streaming(struct vb2_queue *vq)
 875 {
 876         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 877         struct au0828_dmaqueue *vidq = &dev->vidq;
 878         unsigned long flags = 0;
 879
 880         dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users);
 881
 882         if (dev->streaming_users-- == 1)
 883                 au0828_uninit_isoc(dev);
 884
 885         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
 886         dev->vid_timeout_running = 0;
 887         del_timer_sync(&dev->vid_timeout);
 888
 889         spin_lock_irqsave(&dev->slock, flags);
 890         if (dev->isoc_ctl.buf != NULL) {
 891                 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf,
 892                                 VB2_BUF_STATE_ERROR);
 893                 dev->isoc_ctl.buf = NULL;
 894         }
 895         while (!list_empty(&vidq->active)) {
 896                 struct au0828_buffer *buf;
 897
 898                 buf = list_entry(vidq->active.next, struct au0828_buffer, list);
 899                 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 900                 list_del(&buf->list);
 901         }
 902         spin_unlock_irqrestore(&dev->slock, flags);
 903 }
 904
 905 void au0828_stop_vbi_streaming(struct vb2_queue *vq)
 906 {
 907         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 908         struct au0828_dmaqueue *vbiq = &dev->vbiq;
 909         unsigned long flags = 0;
 910
 911         dprintk(1, "au0828_stop_vbi_streaming called %d\n",
 912                 dev->streaming_users);
 913
 914         if (dev->streaming_users-- == 1)
 915                 au0828_uninit_isoc(dev);
 916
 917         spin_lock_irqsave(&dev->slock, flags);
 918         if (dev->isoc_ctl.vbi_buf != NULL) {
 919                 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf,
 920                                 VB2_BUF_STATE_ERROR);
 921                 dev->isoc_ctl.vbi_buf = NULL;
 922         }
 923         while (!list_empty(&vbiq->active)) {
 924                 struct au0828_buffer *buf;
 925
 926                 buf = list_entry(vbiq->active.next, struct au0828_buffer, list);
 927                 list_del(&buf->list);
 928                 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 929         }
 930         spin_unlock_irqrestore(&dev->slock, flags);
 931
 932         dev->vbi_timeout_running = 0;
 933         del_timer_sync(&dev->vbi_timeout);
 934 }
 935
 936 static struct vb2_ops au0828_video_qops = {
 937         .queue_setup     = queue_setup,
 938         .buf_prepare     = buffer_prepare,
 939         .buf_queue       = buffer_queue,
 940         .start_streaming = au0828_start_analog_streaming,
 941         .stop_streaming  = au0828_stop_streaming,
 942         .wait_prepare    = vb2_ops_wait_prepare,
 943         .wait_finish     = vb2_ops_wait_finish,
 944 };
 945
 946 /* ------------------------------------------------------------------
 947    V4L2 interface
 948    ------------------------------------------------------------------*/
 949 /*
 950  * au0828_analog_unregister
 951  * unregister v4l2 devices
 952  */
 953 int au0828_analog_unregister(struct au0828_dev *dev)
 954 {
 955         dprintk(1, "au0828_analog_unregister called\n");
 956
 957         /* No analog TV */
 958         if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
 959                 return 0;
 960
 961         mutex_lock(&au0828_sysfs_lock);
 962         video_unregister_device(&dev->vdev);
 963         video_unregister_device(&dev->vbi_dev);
 964         mutex_unlock(&au0828_sysfs_lock);
 965
 966         v4l2_device_disconnect(&dev->v4l2_dev);
 967         v4l2_device_put(&dev->v4l2_dev);
 968
 969         return 1;
 970 }
 971
 972 /* This function ensures that video frames continue to be delivered even if
 973    the ITU-656 input isn't receiving any data (thereby preventing applications
 974    such as tvtime from hanging) */
 975 static void au0828_vid_buffer_timeout(unsigned long data)
 976 {
 977         struct au0828_dev *dev = (struct au0828_dev *) data;
 978         struct au0828_dmaqueue *dma_q = &dev->vidq;
 979         struct au0828_buffer *buf;
 980         unsigned char *vid_data;
 981         unsigned long flags = 0;
 982
 983         spin_lock_irqsave(&dev->slock, flags);
 984
 985         buf = dev->isoc_ctl.buf;
 986         if (buf != NULL) {
 987                 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
 988                 memset(vid_data, 0x00, buf->length); /* Blank green frame */
 989                 buffer_filled(dev, dma_q, buf);
 990         }
 991         get_next_buf(dma_q, &buf);
 992
 993         if (dev->vid_timeout_running == 1)
 994                 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
 995
 996         spin_unlock_irqrestore(&dev->slock, flags);
 997 }
 998
 999 static void au0828_vbi_buffer_timeout(unsigned long data)
1000 {
1001         struct au0828_dev *dev = (struct au0828_dev *) data;
1002         struct au0828_dmaqueue *dma_q = &dev->vbiq;
1003         struct au0828_buffer *buf;
1004         unsigned char *vbi_data;
1005         unsigned long flags = 0;
1006
1007         spin_lock_irqsave(&dev->slock, flags);
1008
1009         buf = dev->isoc_ctl.vbi_buf;
1010         if (buf != NULL) {
1011                 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
1012                 memset(vbi_data, 0x00, buf->length);
1013                 buffer_filled(dev, dma_q, buf);
1014         }
1015         vbi_get_next_buf(dma_q, &buf);
1016
1017         if (dev->vbi_timeout_running == 1)
1018                 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1019         spin_unlock_irqrestore(&dev->slock, flags);
1020 }
1021
1022 static int au0828_v4l2_open(struct file *filp)
1023 {
1024         struct au0828_dev *dev = video_drvdata(filp);
1025         int ret;
1026
1027         dprintk(1,
1028                 "%s called std_set %d dev_state %ld stream users %d users %d\n",
1029                 __func__, dev->std_set_in_tuner_core, dev->dev_state,
1030                 dev->streaming_users, dev->users);
1031
1032         if (mutex_lock_interruptible(&dev->lock))
1033                 return -ERESTARTSYS;
1034
1035         ret = v4l2_fh_open(filp);
1036         if (ret) {
1037                 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n",
1038                                 __func__, ret);
1039                 mutex_unlock(&dev->lock);
1040                 return ret;
1041         }
1042
1043         if (dev->users == 0) {
1044                 au0828_analog_stream_enable(dev);
1045                 au0828_analog_stream_reset(dev);
1046                 dev->stream_state = STREAM_OFF;
1047                 set_bit(DEV_INITIALIZED, &dev->dev_state);
1048         }
1049         dev->users++;
1050         mutex_unlock(&dev->lock);
1051         return ret;
1052 }
1053
1054 static int au0828_v4l2_close(struct file *filp)
1055 {
1056         int ret;
1057         struct au0828_dev *dev = video_drvdata(filp);
1058         struct video_device *vdev = video_devdata(filp);
1059
1060         dprintk(1,
1061                 "%s called std_set %d dev_state %ld stream users %d users %d\n",
1062                 __func__, dev->std_set_in_tuner_core, dev->dev_state,
1063                 dev->streaming_users, dev->users);
1064
1065         mutex_lock(&dev->lock);
1066         if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) {
1067                 /* Cancel timeout thread in case they didn't call streamoff */
1068                 dev->vid_timeout_running = 0;
1069                 del_timer_sync(&dev->vid_timeout);
1070         } else if (vdev->vfl_type == VFL_TYPE_VBI &&
1071                         dev->vbi_timeout_running) {
1072                 /* Cancel timeout thread in case they didn't call streamoff */
1073                 dev->vbi_timeout_running = 0;
1074                 del_timer_sync(&dev->vbi_timeout);
1075         }
1076
1077         if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
1078                 goto end;
1079
1080         if (dev->users == 1) {
1081                 /*
1082                  * Avoid putting tuner in sleep if DVB or ALSA are
1083                  * streaming.
1084                  *
1085                  * On most USB devices  like au0828 the tuner can
1086                  * be safely put in sleep stare here if ALSA isn't
1087                  * streaming. Exceptions are some very old USB tuner
1088                  * models such as em28xx-based WinTV USB2 which have
1089                  * a separate audio output jack. The devices that have
1090                  * a separate audio output jack have analog tuners,
1091                  * like Philips FM1236. Those devices are always on,
1092                  * so the s_power callback are silently ignored.
1093                  * So, the current logic here does the following:
1094                  * Disable (put tuner to sleep) when
1095                  * - ALSA and DVB aren't not streaming;
1096                  * - the last V4L2 file handler is closed.
1097                  *
1098                  * FIXME:
1099                  *
1100                  * Additionally, this logic could be improved to
1101                  * disable the media source if the above conditions
1102                  * are met and if the device:
1103                  * - doesn't have a separate audio out plug (or
1104                  * - doesn't use a silicon tuner like xc2028/3028/4000/5000).
1105                  *
1106                  * Once this additional logic is in place, a callback
1107                  * is needed to enable the media source and power on
1108                  * the tuner, for radio to work.
1109                 */
1110                 ret = v4l_enable_media_source(vdev);
1111                 if (ret == 0)
1112                         v4l2_device_call_all(&dev->v4l2_dev, 0, core,
1113                                              s_power, 0);
1114                 dev->std_set_in_tuner_core = 0;
1115
1116                 /* When close the device, set the usb intf0 into alt0 to free
1117                    USB bandwidth */
1118                 ret = usb_set_interface(dev->usbdev, 0, 0);
1119                 if (ret < 0)
1120                         pr_info("Au0828 can't set alternate to 0!\n");
1121         }
1122 end:
1123         _vb2_fop_release(filp, NULL);
1124         dev->users--;
1125         mutex_unlock(&dev->lock);
1126         return 0;
1127 }
1128
1129 /* Must be called with dev->lock held */
1130 static void au0828_init_tuner(struct au0828_dev *dev)
1131 {
1132         struct v4l2_frequency f = {
1133                 .frequency = dev->ctrl_freq,
1134                 .type = V4L2_TUNER_ANALOG_TV,
1135         };
1136
1137         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1138                 dev->std_set_in_tuner_core, dev->dev_state);
1139
1140         if (dev->std_set_in_tuner_core)
1141                 return;
1142         dev->std_set_in_tuner_core = 1;
1143         i2c_gate_ctrl(dev, 1);
1144         /* If we've never sent the standard in tuner core, do so now.
1145            We don't do this at device probe because we don't want to
1146            incur the cost of a firmware load */
1147         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std);
1148         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
1149         i2c_gate_ctrl(dev, 0);
1150 }
1151
1152 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
1153                              struct v4l2_format *format)
1154 {
1155         int ret;
1156         int width = format->fmt.pix.width;
1157         int height = format->fmt.pix.height;
1158
1159         /* If they are demanding a format other than the one we support,
1160            bail out (tvtime asks for UYVY and then retries with YUYV) */
1161         if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)
1162                 return -EINVAL;
1163
1164         /* format->fmt.pix.width only support 720 and height 480 */
1165         if (width != 720)
1166                 width = 720;
1167         if (height != 480)
1168                 height = 480;
1169
1170         format->fmt.pix.width = width;
1171         format->fmt.pix.height = height;
1172         format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1173         format->fmt.pix.bytesperline = width * 2;
1174         format->fmt.pix.sizeimage = width * height * 2;
1175         format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1176         format->fmt.pix.field = V4L2_FIELD_INTERLACED;
1177         format->fmt.pix.priv = 0;
1178
1179         if (cmd == VIDIOC_TRY_FMT)
1180                 return 0;
1181
1182         /* maybe set new image format, driver current only support 720*480 */
1183         dev->width = width;
1184         dev->height = height;
1185         dev->frame_size = width * height * 2;
1186         dev->field_size = width * height;
1187         dev->bytesperline = width * 2;
1188
1189         if (dev->stream_state == STREAM_ON) {
1190                 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
1191                 ret = au0828_stream_interrupt(dev);
1192                 if (ret != 0) {
1193                         dprintk(1, "error interrupting video stream!\n");
1194                         return ret;
1195                 }
1196         }
1197
1198         au0828_analog_stream_enable(dev);
1199
1200         return 0;
1201 }
1202
1203 static int vidioc_querycap(struct file *file, void  *priv,
1204                            struct v4l2_capability *cap)
1205 {
1206         struct video_device *vdev = video_devdata(file);
1207         struct au0828_dev *dev = video_drvdata(file);
1208
1209         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1210                 dev->std_set_in_tuner_core, dev->dev_state);
1211
1212         strlcpy(cap->driver, "au0828", sizeof(cap->driver));
1213         strlcpy(cap->card, dev->board.name, sizeof(cap->card));
1214         usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info));
1215
1216         /* set the device capabilities */
1217         cap->device_caps = V4L2_CAP_AUDIO |
1218                 V4L2_CAP_READWRITE |
1219                 V4L2_CAP_STREAMING |
1220                 V4L2_CAP_TUNER;
1221         if (vdev->vfl_type == VFL_TYPE_GRABBER)
1222                 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
1223         else
1224                 cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
1225         cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS |
1226                 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE;
1227         return 0;
1228 }
1229
1230 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1231                                         struct v4l2_fmtdesc *f)
1232 {
1233         if (f->index)
1234                 return -EINVAL;
1235
1236         dprintk(1, "%s called\n", __func__);
1237
1238         f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1239         strcpy(f->description, "Packed YUV2");
1240
1241         f->flags = 0;
1242         f->pixelformat = V4L2_PIX_FMT_UYVY;
1243
1244         return 0;
1245 }
1246
1247 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1248                                         struct v4l2_format *f)
1249 {
1250         struct au0828_dev *dev = video_drvdata(file);
1251
1252         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1253                 dev->std_set_in_tuner_core, dev->dev_state);
1254
1255         f->fmt.pix.width = dev->width;
1256         f->fmt.pix.height = dev->height;
1257         f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1258         f->fmt.pix.bytesperline = dev->bytesperline;
1259         f->fmt.pix.sizeimage = dev->frame_size;
1260         f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
1261         f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1262         f->fmt.pix.priv = 0;
1263         return 0;
1264 }
1265
1266 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1267                                   struct v4l2_format *f)
1268 {
1269         struct au0828_dev *dev = video_drvdata(file);
1270
1271         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1272                 dev->std_set_in_tuner_core, dev->dev_state);
1273
1274         return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
1275 }
1276
1277 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1278                                 struct v4l2_format *f)
1279 {
1280         struct au0828_dev *dev = video_drvdata(file);
1281         int rc;
1282
1283         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1284                 dev->std_set_in_tuner_core, dev->dev_state);
1285
1286         rc = check_dev(dev);
1287         if (rc < 0)
1288                 return rc;
1289
1290         if (vb2_is_busy(&dev->vb_vidq)) {
1291                 pr_info("%s queue busy\n", __func__);
1292                 rc = -EBUSY;
1293                 goto out;
1294         }
1295
1296         rc = au0828_set_format(dev, VIDIOC_S_FMT, f);
1297 out:
1298         return rc;
1299 }
1300
1301 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
1302 {
1303         struct au0828_dev *dev = video_drvdata(file);
1304
1305         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1306                 dev->std_set_in_tuner_core, dev->dev_state);
1307
1308         if (norm == dev->std)
1309                 return 0;
1310
1311         if (dev->streaming_users > 0)
1312                 return -EBUSY;
1313
1314         dev->std = norm;
1315
1316         au0828_init_tuner(dev);
1317
1318         i2c_gate_ctrl(dev, 1);
1319
1320         /*
1321          * FIXME: when we support something other than 60Hz standards,
1322          * we are going to have to make the au0828 bridge adjust the size
1323          * of its capture buffer, which is currently hardcoded at 720x480
1324          */
1325
1326         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm);
1327
1328         i2c_gate_ctrl(dev, 0);
1329
1330         return 0;
1331 }
1332
1333 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
1334 {
1335         struct au0828_dev *dev = video_drvdata(file);
1336
1337         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1338                 dev->std_set_in_tuner_core, dev->dev_state);
1339
1340         *norm = dev->std;
1341         return 0;
1342 }
1343
1344 static int vidioc_enum_input(struct file *file, void *priv,
1345                                 struct v4l2_input *input)
1346 {
1347         struct au0828_dev *dev = video_drvdata(file);
1348         unsigned int tmp;
1349
1350         static const char *inames[] = {
1351                 [AU0828_VMUX_UNDEFINED] = "Undefined",
1352                 [AU0828_VMUX_COMPOSITE] = "Composite",
1353                 [AU0828_VMUX_SVIDEO] = "S-Video",
1354                 [AU0828_VMUX_CABLE] = "Cable TV",
1355                 [AU0828_VMUX_TELEVISION] = "Television",
1356                 [AU0828_VMUX_DVB] = "DVB",
1357         };
1358
1359         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1360                 dev->std_set_in_tuner_core, dev->dev_state);
1361
1362         tmp = input->index;
1363
1364         if (tmp >= AU0828_MAX_INPUT)
1365                 return -EINVAL;
1366         if (AUVI_INPUT(tmp).type == 0)
1367                 return -EINVAL;
1368
1369         input->index = tmp;
1370         strcpy(input->name, inames[AUVI_INPUT(tmp).type]);
1371         if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
1372             (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) {
1373                 input->type |= V4L2_INPUT_TYPE_TUNER;
1374                 input->audioset = 1;
1375         } else {
1376                 input->type |= V4L2_INPUT_TYPE_CAMERA;
1377                 input->audioset = 2;
1378         }
1379
1380         input->std = dev->vdev.tvnorms;
1381
1382         return 0;
1383 }
1384
1385 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1386 {
1387         struct au0828_dev *dev = video_drvdata(file);
1388
1389         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1390                 dev->std_set_in_tuner_core, dev->dev_state);
1391
1392         *i = dev->ctrl_input;
1393         return 0;
1394 }
1395
1396 static void au0828_s_input(struct au0828_dev *dev, int index)
1397 {
1398         int i;
1399
1400         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1401                 dev->std_set_in_tuner_core, dev->dev_state);
1402
1403         switch (AUVI_INPUT(index).type) {
1404         case AU0828_VMUX_SVIDEO:
1405                 dev->input_type = AU0828_VMUX_SVIDEO;
1406                 dev->ctrl_ainput = 1;
1407                 break;
1408         case AU0828_VMUX_COMPOSITE:
1409                 dev->input_type = AU0828_VMUX_COMPOSITE;
1410                 dev->ctrl_ainput = 1;
1411                 break;
1412         case AU0828_VMUX_TELEVISION:
1413                 dev->input_type = AU0828_VMUX_TELEVISION;
1414                 dev->ctrl_ainput = 0;
1415                 break;
1416         default:
1417                 dprintk(1, "unknown input type set [%d]\n",
1418                         AUVI_INPUT(index).type);
1419                 return;
1420         }
1421
1422         dev->ctrl_input = index;
1423
1424         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
1425                         AUVI_INPUT(index).vmux, 0, 0);
1426
1427         for (i = 0; i < AU0828_MAX_INPUT; i++) {
1428                 int enable = 0;
1429                 if (AUVI_INPUT(i).audio_setup == NULL)
1430                         continue;
1431
1432                 if (i == index)
1433                         enable = 1;
1434                 else
1435                         enable = 0;
1436                 if (enable) {
1437                         (AUVI_INPUT(i).audio_setup)(dev, enable);
1438                 } else {
1439                         /* Make sure we leave it turned on if some
1440                            other input is routed to this callback */
1441                         if ((AUVI_INPUT(i).audio_setup) !=
1442                             ((AUVI_INPUT(index).audio_setup))) {
1443                                 (AUVI_INPUT(i).audio_setup)(dev, enable);
1444                         }
1445                 }
1446         }
1447
1448         v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
1449                         AUVI_INPUT(index).amux, 0, 0);
1450 }
1451
1452 static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
1453 {
1454         struct au0828_dev *dev = video_drvdata(file);
1455         struct video_device *vfd = video_devdata(file);
1456
1457         dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
1458                 index);
1459         if (index >= AU0828_MAX_INPUT)
1460                 return -EINVAL;
1461         if (AUVI_INPUT(index).type == 0)
1462                 return -EINVAL;
1463
1464         if (dev->ctrl_input == index)
1465                 return 0;
1466
1467         au0828_s_input(dev, index);
1468
1469         /*
1470          * Input has been changed. Disable the media source
1471          * associated with the old input and enable source
1472          * for the newly set input
1473          */
1474         v4l_disable_media_source(vfd);
1475         return v4l_enable_media_source(vfd);
1476 }
1477
1478 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a)
1479 {
1480         if (a->index > 1)
1481                 return -EINVAL;
1482
1483         dprintk(1, "%s called\n", __func__);
1484
1485         if (a->index == 0)
1486                 strcpy(a->name, "Television");
1487         else
1488                 strcpy(a->name, "Line in");
1489
1490         a->capability = V4L2_AUDCAP_STEREO;
1491         return 0;
1492 }
1493
1494 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1495 {
1496         struct au0828_dev *dev = video_drvdata(file);
1497
1498         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1499                 dev->std_set_in_tuner_core, dev->dev_state);
1500
1501         a->index = dev->ctrl_ainput;
1502         if (a->index == 0)
1503                 strcpy(a->name, "Television");
1504         else
1505                 strcpy(a->name, "Line in");
1506
1507         a->capability = V4L2_AUDCAP_STEREO;
1508         return 0;
1509 }
1510
1511 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)
1512 {
1513         struct au0828_dev *dev = video_drvdata(file);
1514
1515         if (a->index != dev->ctrl_ainput)
1516                 return -EINVAL;
1517
1518         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1519                 dev->std_set_in_tuner_core, dev->dev_state);
1520         return 0;
1521 }
1522
1523 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1524 {
1525         struct au0828_dev *dev = video_drvdata(file);
1526         struct video_device *vfd = video_devdata(file);
1527         int ret;
1528
1529         if (t->index != 0)
1530                 return -EINVAL;
1531
1532         ret = v4l_enable_media_source(vfd);
1533         if (ret)
1534                 return ret;
1535
1536         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1537                 dev->std_set_in_tuner_core, dev->dev_state);
1538
1539         strcpy(t->name, "Auvitek tuner");
1540
1541         au0828_init_tuner(dev);
1542         i2c_gate_ctrl(dev, 1);
1543         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1544         i2c_gate_ctrl(dev, 0);
1545         return 0;
1546 }
1547
1548 static int vidioc_s_tuner(struct file *file, void *priv,
1549                                 const struct v4l2_tuner *t)
1550 {
1551         struct au0828_dev *dev = video_drvdata(file);
1552
1553         if (t->index != 0)
1554                 return -EINVAL;
1555
1556         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1557                 dev->std_set_in_tuner_core, dev->dev_state);
1558
1559         au0828_init_tuner(dev);
1560         i2c_gate_ctrl(dev, 1);
1561         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1562         i2c_gate_ctrl(dev, 0);
1563
1564         dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
1565                 t->afc);
1566
1567         return 0;
1568
1569 }
1570
1571 static int vidioc_g_frequency(struct file *file, void *priv,
1572                                 struct v4l2_frequency *freq)
1573 {
1574         struct au0828_dev *dev = video_drvdata(file);
1575
1576         if (freq->tuner != 0)
1577                 return -EINVAL;
1578         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1579                 dev->std_set_in_tuner_core, dev->dev_state);
1580         freq->frequency = dev->ctrl_freq;
1581         return 0;
1582 }
1583
1584 static int vidioc_s_frequency(struct file *file, void *priv,
1585                                 const struct v4l2_frequency *freq)
1586 {
1587         struct au0828_dev *dev = video_drvdata(file);
1588         struct v4l2_frequency new_freq = *freq;
1589
1590         if (freq->tuner != 0)
1591                 return -EINVAL;
1592
1593         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1594                 dev->std_set_in_tuner_core, dev->dev_state);
1595
1596         au0828_init_tuner(dev);
1597         i2c_gate_ctrl(dev, 1);
1598
1599         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
1600         /* Get the actual set (and possibly clamped) frequency */
1601         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
1602         dev->ctrl_freq = new_freq.frequency;
1603
1604         i2c_gate_ctrl(dev, 0);
1605
1606         au0828_analog_stream_reset(dev);
1607
1608         return 0;
1609 }
1610
1611
1612 /* RAW VBI ioctls */
1613
1614 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1615                                 struct v4l2_format *format)
1616 {
1617         struct au0828_dev *dev = video_drvdata(file);
1618
1619         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1620                 dev->std_set_in_tuner_core, dev->dev_state);
1621
1622         format->fmt.vbi.samples_per_line = dev->vbi_width;
1623         format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1624         format->fmt.vbi.offset = 0;
1625         format->fmt.vbi.flags = 0;
1626         format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
1627
1628         format->fmt.vbi.count[0] = dev->vbi_height;
1629         format->fmt.vbi.count[1] = dev->vbi_height;
1630         format->fmt.vbi.start[0] = 21;
1631         format->fmt.vbi.start[1] = 284;
1632         memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
1633
1634         return 0;
1635 }
1636
1637 static int vidioc_cropcap(struct file *file, void *priv,
1638                           struct v4l2_cropcap *cc)
1639 {
1640         struct au0828_dev *dev = video_drvdata(file);
1641
1642         if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1643                 return -EINVAL;
1644
1645         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1646                 dev->std_set_in_tuner_core, dev->dev_state);
1647
1648         cc->bounds.left = 0;
1649         cc->bounds.top = 0;
1650         cc->bounds.width = dev->width;
1651         cc->bounds.height = dev->height;
1652
1653         cc->defrect = cc->bounds;
1654
1655         cc->pixelaspect.numerator = 54;
1656         cc->pixelaspect.denominator = 59;
1657
1658         return 0;
1659 }
1660
1661 #ifdef CONFIG_VIDEO_ADV_DEBUG
1662 static int vidioc_g_register(struct file *file, void *priv,
1663                              struct v4l2_dbg_register *reg)
1664 {
1665         struct au0828_dev *dev = video_drvdata(file);
1666
1667         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1668                 dev->std_set_in_tuner_core, dev->dev_state);
1669
1670         reg->val = au0828_read(dev, reg->reg);
1671         reg->size = 1;
1672         return 0;
1673 }
1674
1675 static int vidioc_s_register(struct file *file, void *priv,
1676                              const struct v4l2_dbg_register *reg)
1677 {
1678         struct au0828_dev *dev = video_drvdata(file);
1679
1680         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1681                 dev->std_set_in_tuner_core, dev->dev_state);
1682
1683         return au0828_writereg(dev, reg->reg, reg->val);
1684 }
1685 #endif
1686
1687 static int vidioc_log_status(struct file *file, void *fh)
1688 {
1689         struct video_device *vdev = video_devdata(file);
1690
1691         dprintk(1, "%s called\n", __func__);
1692
1693         v4l2_ctrl_log_status(file, fh);
1694         v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status);
1695         return 0;
1696 }
1697
1698 void au0828_v4l2_suspend(struct au0828_dev *dev)
1699 {
1700         struct urb *urb;
1701         int i;
1702
1703         pr_info("stopping V4L2\n");
1704
1705         if (dev->stream_state == STREAM_ON) {
1706                 pr_info("stopping V4L2 active URBs\n");
1707                 au0828_analog_stream_disable(dev);
1708                 /* stop urbs */
1709                 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1710                         urb = dev->isoc_ctl.urb[i];
1711                         if (urb) {
1712                                 if (!irqs_disabled())
1713                                         usb_kill_urb(urb);
1714                                 else
1715                                         usb_unlink_urb(urb);
1716                         }
1717                 }
1718         }
1719
1720         if (dev->vid_timeout_running)
1721                 del_timer_sync(&dev->vid_timeout);
1722         if (dev->vbi_timeout_running)
1723                 del_timer_sync(&dev->vbi_timeout);
1724 }
1725
1726 void au0828_v4l2_resume(struct au0828_dev *dev)
1727 {
1728         int i, rc;
1729
1730         pr_info("restarting V4L2\n");
1731
1732         if (dev->stream_state == STREAM_ON) {
1733                 au0828_stream_interrupt(dev);
1734                 au0828_init_tuner(dev);
1735         }
1736
1737         if (dev->vid_timeout_running)
1738                 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
1739         if (dev->vbi_timeout_running)
1740                 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1741
1742         /* If we were doing ac97 instead of i2s, it would go here...*/
1743         au0828_i2s_init(dev);
1744
1745         au0828_analog_stream_enable(dev);
1746
1747         if (!(dev->stream_state == STREAM_ON)) {
1748                 au0828_analog_stream_reset(dev);
1749                 /* submit urbs */
1750                 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1751                         rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
1752                         if (rc) {
1753                                 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
1754                                                i, rc);
1755                                 au0828_uninit_isoc(dev);
1756                         }
1757                 }
1758         }
1759 }
1760
1761 static struct v4l2_file_operations au0828_v4l_fops = {
1762         .owner      = THIS_MODULE,
1763         .open       = au0828_v4l2_open,
1764         .release    = au0828_v4l2_close,
1765         .read       = vb2_fop_read,
1766         .poll       = vb2_fop_poll,
1767         .mmap       = vb2_fop_mmap,
1768         .unlocked_ioctl = video_ioctl2,
1769 };
1770
1771 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1772         .vidioc_querycap            = vidioc_querycap,
1773         .vidioc_enum_fmt_vid_cap    = vidioc_enum_fmt_vid_cap,
1774         .vidioc_g_fmt_vid_cap       = vidioc_g_fmt_vid_cap,
1775         .vidioc_try_fmt_vid_cap     = vidioc_try_fmt_vid_cap,
1776         .vidioc_s_fmt_vid_cap       = vidioc_s_fmt_vid_cap,
1777         .vidioc_g_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
1778         .vidioc_try_fmt_vbi_cap     = vidioc_g_fmt_vbi_cap,
1779         .vidioc_s_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
1780         .vidioc_enumaudio           = vidioc_enumaudio,
1781         .vidioc_g_audio             = vidioc_g_audio,
1782         .vidioc_s_audio             = vidioc_s_audio,
1783         .vidioc_cropcap             = vidioc_cropcap,
1784
1785         .vidioc_reqbufs             = vb2_ioctl_reqbufs,
1786         .vidioc_create_bufs         = vb2_ioctl_create_bufs,
1787         .vidioc_prepare_buf         = vb2_ioctl_prepare_buf,
1788         .vidioc_querybuf            = vb2_ioctl_querybuf,
1789         .vidioc_qbuf                = vb2_ioctl_qbuf,
1790         .vidioc_dqbuf               = vb2_ioctl_dqbuf,
1791         .vidioc_expbuf               = vb2_ioctl_expbuf,
1792
1793         .vidioc_s_std               = vidioc_s_std,
1794         .vidioc_g_std               = vidioc_g_std,
1795         .vidioc_enum_input          = vidioc_enum_input,
1796         .vidioc_g_input             = vidioc_g_input,
1797         .vidioc_s_input             = vidioc_s_input,
1798
1799         .vidioc_streamon            = vb2_ioctl_streamon,
1800         .vidioc_streamoff           = vb2_ioctl_streamoff,
1801
1802         .vidioc_g_tuner             = vidioc_g_tuner,
1803         .vidioc_s_tuner             = vidioc_s_tuner,
1804         .vidioc_g_frequency         = vidioc_g_frequency,
1805         .vidioc_s_frequency         = vidioc_s_frequency,
1806 #ifdef CONFIG_VIDEO_ADV_DEBUG
1807         .vidioc_g_register          = vidioc_g_register,
1808         .vidioc_s_register          = vidioc_s_register,
1809 #endif
1810         .vidioc_log_status          = vidioc_log_status,
1811         .vidioc_subscribe_event     = v4l2_ctrl_subscribe_event,
1812         .vidioc_unsubscribe_event   = v4l2_event_unsubscribe,
1813 };
1814
1815 static const struct video_device au0828_video_template = {
1816         .fops                       = &au0828_v4l_fops,
1817         .release                    = video_device_release_empty,
1818         .ioctl_ops                  = &video_ioctl_ops,
1819         .tvnorms                    = V4L2_STD_NTSC_M | V4L2_STD_PAL_M,
1820 };
1821
1822 static int au0828_vb2_setup(struct au0828_dev *dev)
1823 {
1824         int rc;
1825         struct vb2_queue *q;
1826
1827         /* Setup Videobuf2 for Video capture */
1828         q = &dev->vb_vidq;
1829         q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1830         q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1831         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1832         q->drv_priv = dev;
1833         q->buf_struct_size = sizeof(struct au0828_buffer);
1834         q->ops = &au0828_video_qops;
1835         q->mem_ops = &vb2_vmalloc_memops;
1836
1837         rc = vb2_queue_init(q);
1838         if (rc < 0)
1839                 return rc;
1840
1841         /* Setup Videobuf2 for VBI capture */
1842         q = &dev->vb_vbiq;
1843         q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1844         q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1845         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1846         q->drv_priv = dev;
1847         q->buf_struct_size = sizeof(struct au0828_buffer);
1848         q->ops = &au0828_vbi_qops;
1849         q->mem_ops = &vb2_vmalloc_memops;
1850
1851         rc = vb2_queue_init(q);
1852         if (rc < 0)
1853                 return rc;
1854
1855         return 0;
1856 }
1857
1858 static void au0828_analog_create_entities(struct au0828_dev *dev)
1859 {
1860 #if defined(CONFIG_MEDIA_CONTROLLER)
1861         static const char * const inames[] = {
1862                 [AU0828_VMUX_COMPOSITE] = "Composite",
1863                 [AU0828_VMUX_SVIDEO] = "S-Video",
1864                 [AU0828_VMUX_CABLE] = "Cable TV",
1865                 [AU0828_VMUX_TELEVISION] = "Television",
1866                 [AU0828_VMUX_DVB] = "DVB",
1867         };
1868         int ret, i;
1869
1870         /* Initialize Video and VBI pads */
1871         dev->video_pad.flags = MEDIA_PAD_FL_SINK;
1872         ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad);
1873         if (ret < 0)
1874                 pr_err("failed to initialize video media entity!\n");
1875
1876         dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
1877         ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad);
1878         if (ret < 0)
1879                 pr_err("failed to initialize vbi media entity!\n");
1880
1881         /* Create entities for each input connector */
1882         for (i = 0; i < AU0828_MAX_INPUT; i++) {
1883                 struct media_entity *ent = &dev->input_ent[i];
1884
1885                 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
1886                         break;
1887
1888                 ent->name = inames[AUVI_INPUT(i).type];
1889                 ent->flags = MEDIA_ENT_FL_CONNECTOR;
1890                 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
1891
1892                 switch (AUVI_INPUT(i).type) {
1893                 case AU0828_VMUX_COMPOSITE:
1894                         ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
1895                         break;
1896                 case AU0828_VMUX_SVIDEO:
1897                         ent->function = MEDIA_ENT_F_CONN_SVIDEO;
1898                         break;
1899                 case AU0828_VMUX_CABLE:
1900                 case AU0828_VMUX_TELEVISION:
1901                 case AU0828_VMUX_DVB:
1902                 default: /* Just to shut up a warning */
1903                         ent->function = MEDIA_ENT_F_CONN_RF;
1904                         break;
1905                 }
1906
1907                 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
1908                 if (ret < 0)
1909                         pr_err("failed to initialize input pad[%d]!\n", i);
1910
1911                 ret = media_device_register_entity(dev->media_dev, ent);
1912                 if (ret < 0)
1913                         pr_err("failed to register input entity %d!\n", i);
1914         }
1915 #endif
1916 }
1917
1918 /**************************************************************************/
1919
1920 int au0828_analog_register(struct au0828_dev *dev,
1921                            struct usb_interface *interface)
1922 {
1923         int retval = -ENOMEM;
1924         struct usb_host_interface *iface_desc;
1925         struct usb_endpoint_descriptor *endpoint;
1926         int i, ret;
1927
1928         dprintk(1, "au0828_analog_register called for intf#%d!\n",
1929                 interface->cur_altsetting->desc.bInterfaceNumber);
1930
1931         /* No analog TV */
1932         if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
1933                 return 0;
1934
1935         /* set au0828 usb interface0 to as5 */
1936         retval = usb_set_interface(dev->usbdev,
1937                         interface->cur_altsetting->desc.bInterfaceNumber, 5);
1938         if (retval != 0) {
1939                 pr_info("Failure setting usb interface0 to as5\n");
1940                 return retval;
1941         }
1942
1943         /* Figure out which endpoint has the isoc interface */
1944         iface_desc = interface->cur_altsetting;
1945         for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
1946                 endpoint = &iface_desc->endpoint[i].desc;
1947                 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1948                      == USB_DIR_IN) &&
1949                     ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1950                      == USB_ENDPOINT_XFER_ISOC)) {
1951
1952                         /* we find our isoc in endpoint */
1953                         u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
1954                         dev->max_pkt_size = (tmp & 0x07ff) *
1955                                 (((tmp & 0x1800) >> 11) + 1);
1956                         dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
1957                         dprintk(1,
1958                                 "Found isoc endpoint 0x%02x, max size = %d\n",
1959                                 dev->isoc_in_endpointaddr, dev->max_pkt_size);
1960                 }
1961         }
1962         if (!(dev->isoc_in_endpointaddr)) {
1963                 pr_info("Could not locate isoc endpoint\n");
1964                 return -ENODEV;
1965         }
1966
1967         init_waitqueue_head(&dev->open);
1968         spin_lock_init(&dev->slock);
1969
1970         /* init video dma queues */
1971         INIT_LIST_HEAD(&dev->vidq.active);
1972         INIT_LIST_HEAD(&dev->vbiq.active);
1973
1974         setup_timer(&dev->vid_timeout, au0828_vid_buffer_timeout,
1975                     (unsigned long)dev);
1976         setup_timer(&dev->vbi_timeout, au0828_vbi_buffer_timeout,
1977                     (unsigned long)dev);
1978
1979         dev->width = NTSC_STD_W;
1980         dev->height = NTSC_STD_H;
1981         dev->field_size = dev->width * dev->height;
1982         dev->frame_size = dev->field_size << 1;
1983         dev->bytesperline = dev->width << 1;
1984         dev->vbi_width = 720;
1985         dev->vbi_height = 1;
1986         dev->ctrl_ainput = 0;
1987         dev->ctrl_freq = 960;
1988         dev->std = V4L2_STD_NTSC_M;
1989         /* Default input is TV Tuner */
1990         au0828_s_input(dev, 0);
1991
1992         mutex_init(&dev->vb_queue_lock);
1993         mutex_init(&dev->vb_vbi_queue_lock);
1994
1995         /* Fill the video capture device struct */
1996         dev->vdev = au0828_video_template;
1997         dev->vdev.v4l2_dev = &dev->v4l2_dev;
1998         dev->vdev.lock = &dev->lock;
1999         dev->vdev.queue = &dev->vb_vidq;
2000         dev->vdev.queue->lock = &dev->vb_queue_lock;
2001         strcpy(dev->vdev.name, "au0828a video");
2002
2003         /* Setup the VBI device */
2004         dev->vbi_dev = au0828_video_template;
2005         dev->vbi_dev.v4l2_dev = &dev->v4l2_dev;
2006         dev->vbi_dev.lock = &dev->lock;
2007         dev->vbi_dev.queue = &dev->vb_vbiq;
2008         dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock;
2009         strcpy(dev->vbi_dev.name, "au0828a vbi");
2010
2011         /* Init entities at the Media Controller */
2012         au0828_analog_create_entities(dev);
2013
2014         /* initialize videobuf2 stuff */
2015         retval = au0828_vb2_setup(dev);
2016         if (retval != 0) {
2017                 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n",
2018                         retval);
2019                 return -ENODEV;
2020         }
2021
2022         /* Register the v4l2 device */
2023         video_set_drvdata(&dev->vdev, dev);
2024         retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1);
2025         if (retval != 0) {
2026                 dprintk(1, "unable to register video device (error = %d).\n",
2027                         retval);
2028                 ret = -ENODEV;
2029                 goto err_reg_vdev;
2030         }
2031
2032         /* Register the vbi device */
2033         video_set_drvdata(&dev->vbi_dev, dev);
2034         retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1);
2035         if (retval != 0) {
2036                 dprintk(1, "unable to register vbi device (error = %d).\n",
2037                         retval);
2038                 ret = -ENODEV;
2039                 goto err_reg_vbi_dev;
2040         }
2041
2042 #ifdef CONFIG_MEDIA_CONTROLLER
2043         retval = v4l2_mc_create_media_graph(dev->media_dev);
2044         if (retval) {
2045                 pr_err("%s() au0282_dev_register failed to create graph\n",
2046                         __func__);
2047                 ret = -ENODEV;
2048                 goto err_reg_vbi_dev;
2049         }
2050 #endif
2051
2052         dprintk(1, "%s completed!\n", __func__);
2053
2054         return 0;
2055
2056 err_reg_vbi_dev:
2057         video_unregister_device(&dev->vdev);
2058 err_reg_vdev:
2059         vb2_queue_release(&dev->vb_vidq);
2060         vb2_queue_release(&dev->vb_vbiq);
2061         return ret;
2062 }
2063