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

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Auvitek AU0828 USB Bridge (Analog video support)
   4  *
   5  * Copyright (C) 2009 Devin Heitmueller <dheitmueller@linuxtv.org>
   6  * Copyright (C) 2005-2008 Auvitek International, Ltd.
   7  */
   8
   9 /* Developer Notes:
  10  *
  11  * The hardware scaler supported is unimplemented
  12  * AC97 audio support is unimplemented (only i2s audio mode)
  13  *
  14  */
  15
  16 #include "au0828.h"
  17 #include "au8522.h"
  18
  19 #include <linux/module.h>
  20 #include <linux/slab.h>
  21 #include <linux/init.h>
  22 #include <linux/device.h>
  23 #include <media/v4l2-common.h>
  24 #include <media/v4l2-mc.h>
  25 #include <media/v4l2-ioctl.h>
  26 #include <media/v4l2-event.h>
  27 #include <media/tuner.h>
  28 #include "au0828-reg.h"
  29
  30 static DEFINE_MUTEX(au0828_sysfs_lock);
  31
  32 /* ------------------------------------------------------------------
  33         Videobuf operations
  34    ------------------------------------------------------------------*/
  35
  36 static unsigned int isoc_debug;
  37 module_param(isoc_debug, int, 0644);
  38 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
  39
  40 #define au0828_isocdbg(fmt, arg...) \
  41 do {\
  42         if (isoc_debug) { \
  43                 pr_info("au0828 %s :"fmt, \
  44                        __func__ , ##arg);          \
  45         } \
  46   } while (0)
  47
  48 static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val)
  49 {
  50         if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
  51                 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val);
  52 }
  53
  54 static inline void print_err_status(struct au0828_dev *dev,
  55                                     int packet, int status)
  56 {
  57         char *errmsg = "Unknown";
  58
  59         switch (status) {
  60         case -ENOENT:
  61                 errmsg = "unlinked synchronously";
  62                 break;
  63         case -ECONNRESET:
  64                 errmsg = "unlinked asynchronously";
  65                 break;
  66         case -ENOSR:
  67                 errmsg = "Buffer error (overrun)";
  68                 break;
  69         case -EPIPE:
  70                 errmsg = "Stalled (device not responding)";
  71                 break;
  72         case -EOVERFLOW:
  73                 errmsg = "Babble (bad cable?)";
  74                 break;
  75         case -EPROTO:
  76                 errmsg = "Bit-stuff error (bad cable?)";
  77                 break;
  78         case -EILSEQ:
  79                 errmsg = "CRC/Timeout (could be anything)";
  80                 break;
  81         case -ETIME:
  82                 errmsg = "Device does not respond";
  83                 break;
  84         }
  85         if (packet < 0) {
  86                 au0828_isocdbg("URB status %d [%s].\n", status, errmsg);
  87         } else {
  88                 au0828_isocdbg("URB packet %d, status %d [%s].\n",
  89                                packet, status, errmsg);
  90         }
  91 }
  92
  93 static int check_dev(struct au0828_dev *dev)
  94 {
  95         if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) {
  96                 pr_info("v4l2 ioctl: device not present\n");
  97                 return -ENODEV;
  98         }
  99
 100         if (test_bit(DEV_MISCONFIGURED, &dev->dev_state)) {
 101                 pr_info("v4l2 ioctl: device is misconfigured; close and open it again\n");
 102                 return -EIO;
 103         }
 104         return 0;
 105 }
 106
 107 /*
 108  * IRQ callback, called by URB callback
 109  */
 110 static void au0828_irq_callback(struct urb *urb)
 111 {
 112         struct au0828_dmaqueue  *dma_q = urb->context;
 113         struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
 114         unsigned long flags = 0;
 115         int i;
 116
 117         switch (urb->status) {
 118         case 0:             /* success */
 119         case -ETIMEDOUT:    /* NAK */
 120                 break;
 121         case -ECONNRESET:   /* kill */
 122         case -ENOENT:
 123         case -ESHUTDOWN:
 124                 au0828_isocdbg("au0828_irq_callback called: status kill\n");
 125                 return;
 126         default:            /* unknown error */
 127                 au0828_isocdbg("urb completion error %d.\n", urb->status);
 128                 break;
 129         }
 130
 131         /* Copy data from URB */
 132         spin_lock_irqsave(&dev->slock, flags);
 133         dev->isoc_ctl.isoc_copy(dev, urb);
 134         spin_unlock_irqrestore(&dev->slock, flags);
 135
 136         /* Reset urb buffers */
 137         for (i = 0; i < urb->number_of_packets; i++) {
 138                 urb->iso_frame_desc[i].status = 0;
 139                 urb->iso_frame_desc[i].actual_length = 0;
 140         }
 141         urb->status = 0;
 142
 143         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 144         if (urb->status) {
 145                 au0828_isocdbg("urb resubmit failed (error=%i)\n",
 146                                urb->status);
 147         }
 148         dev->stream_state = STREAM_ON;
 149 }
 150
 151 /*
 152  * Stop and Deallocate URBs
 153  */
 154 static void au0828_uninit_isoc(struct au0828_dev *dev)
 155 {
 156         struct urb *urb;
 157         int i;
 158
 159         au0828_isocdbg("au0828: called au0828_uninit_isoc\n");
 160
 161         dev->isoc_ctl.nfields = -1;
 162         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 163                 urb = dev->isoc_ctl.urb[i];
 164                 if (urb) {
 165                         if (!irqs_disabled())
 166                                 usb_kill_urb(urb);
 167                         else
 168                                 usb_unlink_urb(urb);
 169
 170                         if (dev->isoc_ctl.transfer_buffer[i]) {
 171                                 usb_free_coherent(dev->usbdev,
 172                                         urb->transfer_buffer_length,
 173                                         dev->isoc_ctl.transfer_buffer[i],
 174                                         urb->transfer_dma);
 175                         }
 176                         usb_free_urb(urb);
 177                         dev->isoc_ctl.urb[i] = NULL;
 178                 }
 179                 dev->isoc_ctl.transfer_buffer[i] = NULL;
 180         }
 181
 182         kfree(dev->isoc_ctl.urb);
 183         kfree(dev->isoc_ctl.transfer_buffer);
 184
 185         dev->isoc_ctl.urb = NULL;
 186         dev->isoc_ctl.transfer_buffer = NULL;
 187         dev->isoc_ctl.num_bufs = 0;
 188
 189         dev->stream_state = STREAM_OFF;
 190 }
 191
 192 /*
 193  * Allocate URBs and start IRQ
 194  */
 195 static int au0828_init_isoc(struct au0828_dev *dev, int max_packets,
 196                             int num_bufs, int max_pkt_size,
 197                             int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb))
 198 {
 199         struct au0828_dmaqueue *dma_q = &dev->vidq;
 200         int i;
 201         int sb_size, pipe;
 202         struct urb *urb;
 203         int j, k;
 204         int rc;
 205
 206         au0828_isocdbg("au0828: called au0828_prepare_isoc\n");
 207
 208         dev->isoc_ctl.isoc_copy = isoc_copy;
 209         dev->isoc_ctl.num_bufs = num_bufs;
 210
 211         dev->isoc_ctl.urb = kcalloc(num_bufs, sizeof(void *),  GFP_KERNEL);
 212         if (!dev->isoc_ctl.urb) {
 213                 au0828_isocdbg("cannot alloc memory for usb buffers\n");
 214                 return -ENOMEM;
 215         }
 216
 217         dev->isoc_ctl.transfer_buffer = kcalloc(num_bufs, sizeof(void *),
 218                                                 GFP_KERNEL);
 219         if (!dev->isoc_ctl.transfer_buffer) {
 220                 au0828_isocdbg("cannot allocate memory for usb transfer\n");
 221                 kfree(dev->isoc_ctl.urb);
 222                 return -ENOMEM;
 223         }
 224
 225         dev->isoc_ctl.max_pkt_size = max_pkt_size;
 226         dev->isoc_ctl.buf = NULL;
 227
 228         sb_size = max_packets * dev->isoc_ctl.max_pkt_size;
 229
 230         /* allocate urbs and transfer buffers */
 231         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 232                 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
 233                 if (!urb) {
 234                         au0828_uninit_isoc(dev);
 235                         return -ENOMEM;
 236                 }
 237                 dev->isoc_ctl.urb[i] = urb;
 238
 239                 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev,
 240                         sb_size, GFP_KERNEL, &urb->transfer_dma);
 241                 if (!dev->isoc_ctl.transfer_buffer[i]) {
 242                         printk("unable to allocate %i bytes for transfer buffer %i%s\n",
 243                                         sb_size, i,
 244                                         in_interrupt() ? " while in int" : "");
 245                         au0828_uninit_isoc(dev);
 246                         return -ENOMEM;
 247                 }
 248                 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
 249
 250                 pipe = usb_rcvisocpipe(dev->usbdev,
 251                                        dev->isoc_in_endpointaddr),
 252
 253                 usb_fill_int_urb(urb, dev->usbdev, pipe,
 254                                  dev->isoc_ctl.transfer_buffer[i], sb_size,
 255                                  au0828_irq_callback, dma_q, 1);
 256
 257                 urb->number_of_packets = max_packets;
 258                 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
 259
 260                 k = 0;
 261                 for (j = 0; j < max_packets; j++) {
 262                         urb->iso_frame_desc[j].offset = k;
 263                         urb->iso_frame_desc[j].length =
 264                                                 dev->isoc_ctl.max_pkt_size;
 265                         k += dev->isoc_ctl.max_pkt_size;
 266                 }
 267         }
 268
 269         /* submit urbs and enables IRQ */
 270         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 271                 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
 272                 if (rc) {
 273                         au0828_isocdbg("submit of urb %i failed (error=%i)\n",
 274                                        i, rc);
 275                         au0828_uninit_isoc(dev);
 276                         return rc;
 277                 }
 278         }
 279
 280         return 0;
 281 }
 282
 283 /*
 284  * Announces that a buffer were filled and request the next
 285  */
 286 static inline void buffer_filled(struct au0828_dev *dev,
 287                                  struct au0828_dmaqueue *dma_q,
 288                                  struct au0828_buffer *buf)
 289 {
 290         struct vb2_v4l2_buffer *vb = &buf->vb;
 291         struct vb2_queue *q = vb->vb2_buf.vb2_queue;
 292
 293         /* Advice that buffer was filled */
 294         au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field);
 295
 296         if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 297                 vb->sequence = dev->frame_count++;
 298         else
 299                 vb->sequence = dev->vbi_frame_count++;
 300
 301         vb->field = V4L2_FIELD_INTERLACED;
 302         vb->vb2_buf.timestamp = ktime_get_ns();
 303         vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE);
 304 }
 305
 306 /*
 307  * Identify the buffer header type and properly handles
 308  */
 309 static void au0828_copy_video(struct au0828_dev *dev,
 310                               struct au0828_dmaqueue  *dma_q,
 311                               struct au0828_buffer *buf,
 312                               unsigned char *p,
 313                               unsigned char *outp, unsigned long len)
 314 {
 315         void *fieldstart, *startwrite, *startread;
 316         int  linesdone, currlinedone, offset, lencopy, remain;
 317         int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */
 318
 319         if (len == 0)
 320                 return;
 321
 322         if (dma_q->pos + len > buf->length)
 323                 len = buf->length - dma_q->pos;
 324
 325         startread = p;
 326         remain = len;
 327
 328         /* Interlaces frame */
 329         if (buf->top_field)
 330                 fieldstart = outp;
 331         else
 332                 fieldstart = outp + bytesperline;
 333
 334         linesdone = dma_q->pos / bytesperline;
 335         currlinedone = dma_q->pos % bytesperline;
 336         offset = linesdone * bytesperline * 2 + currlinedone;
 337         startwrite = fieldstart + offset;
 338         lencopy = bytesperline - currlinedone;
 339         lencopy = lencopy > remain ? remain : lencopy;
 340
 341         if ((char *)startwrite + lencopy > (char *)outp + buf->length) {
 342                 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
 343                                ((char *)startwrite + lencopy) -
 344                                ((char *)outp + buf->length));
 345                 remain = (char *)outp + buf->length - (char *)startwrite;
 346                 lencopy = remain;
 347         }
 348         if (lencopy <= 0)
 349                 return;
 350         memcpy(startwrite, startread, lencopy);
 351
 352         remain -= lencopy;
 353
 354         while (remain > 0) {
 355                 startwrite += lencopy + bytesperline;
 356                 startread += lencopy;
 357                 if (bytesperline > remain)
 358                         lencopy = remain;
 359                 else
 360                         lencopy = bytesperline;
 361
 362                 if ((char *)startwrite + lencopy > (char *)outp +
 363                     buf->length) {
 364                         au0828_isocdbg("Overflow %zi bytes past buf end (2)\n",
 365                                        ((char *)startwrite + lencopy) -
 366                                        ((char *)outp + buf->length));
 367                         lencopy = remain = (char *)outp + buf->length -
 368                                            (char *)startwrite;
 369                 }
 370                 if (lencopy <= 0)
 371                         break;
 372
 373                 memcpy(startwrite, startread, lencopy);
 374
 375                 remain -= lencopy;
 376         }
 377
 378         if (offset > 1440) {
 379                 /* We have enough data to check for greenscreen */
 380                 if (outp[0] < 0x60 && outp[1440] < 0x60)
 381                         dev->greenscreen_detected = 1;
 382         }
 383
 384         dma_q->pos += len;
 385 }
 386
 387 /*
 388  * video-buf generic routine to get the next available buffer
 389  */
 390 static inline void get_next_buf(struct au0828_dmaqueue *dma_q,
 391                                 struct au0828_buffer **buf)
 392 {
 393         struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
 394
 395         if (list_empty(&dma_q->active)) {
 396                 au0828_isocdbg("No active queue to serve\n");
 397                 dev->isoc_ctl.buf = NULL;
 398                 *buf = NULL;
 399                 return;
 400         }
 401
 402         /* Get the next buffer */
 403         *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
 404         /* Cleans up buffer - Useful for testing for frame/URB loss */
 405         list_del(&(*buf)->list);
 406         dma_q->pos = 0;
 407         (*buf)->vb_buf = (*buf)->mem;
 408         dev->isoc_ctl.buf = *buf;
 409
 410         return;
 411 }
 412
 413 static void au0828_copy_vbi(struct au0828_dev *dev,
 414                               struct au0828_dmaqueue  *dma_q,
 415                               struct au0828_buffer *buf,
 416                               unsigned char *p,
 417                               unsigned char *outp, unsigned long len)
 418 {
 419         unsigned char *startwrite, *startread;
 420         int bytesperline;
 421         int i, j = 0;
 422
 423         if (dev == NULL) {
 424                 au0828_isocdbg("dev is null\n");
 425                 return;
 426         }
 427
 428         if (dma_q == NULL) {
 429                 au0828_isocdbg("dma_q is null\n");
 430                 return;
 431         }
 432         if (buf == NULL)
 433                 return;
 434         if (p == NULL) {
 435                 au0828_isocdbg("p is null\n");
 436                 return;
 437         }
 438         if (outp == NULL) {
 439                 au0828_isocdbg("outp is null\n");
 440                 return;
 441         }
 442
 443         bytesperline = dev->vbi_width;
 444
 445         if (dma_q->pos + len > buf->length)
 446                 len = buf->length - dma_q->pos;
 447
 448         startread = p;
 449         startwrite = outp + (dma_q->pos / 2);
 450
 451         /* Make sure the bottom field populates the second half of the frame */
 452         if (buf->top_field == 0)
 453                 startwrite += bytesperline * dev->vbi_height;
 454
 455         for (i = 0; i < len; i += 2)
 456                 startwrite[j++] = startread[i+1];
 457
 458         dma_q->pos += len;
 459 }
 460
 461
 462 /*
 463  * video-buf generic routine to get the next available VBI buffer
 464  */
 465 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q,
 466                                     struct au0828_buffer **buf)
 467 {
 468         struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq);
 469
 470         if (list_empty(&dma_q->active)) {
 471                 au0828_isocdbg("No active queue to serve\n");
 472                 dev->isoc_ctl.vbi_buf = NULL;
 473                 *buf = NULL;
 474                 return;
 475         }
 476
 477         /* Get the next buffer */
 478         *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
 479         /* Cleans up buffer - Useful for testing for frame/URB loss */
 480         list_del(&(*buf)->list);
 481         dma_q->pos = 0;
 482         (*buf)->vb_buf = (*buf)->mem;
 483         dev->isoc_ctl.vbi_buf = *buf;
 484         return;
 485 }
 486
 487 /*
 488  * Controls the isoc copy of each urb packet
 489  */
 490 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
 491 {
 492         struct au0828_buffer    *buf;
 493         struct au0828_buffer    *vbi_buf;
 494         struct au0828_dmaqueue  *dma_q = urb->context;
 495         struct au0828_dmaqueue  *vbi_dma_q = &dev->vbiq;
 496         unsigned char *outp = NULL;
 497         unsigned char *vbioutp = NULL;
 498         int i, len = 0, rc = 1;
 499         unsigned char *p;
 500         unsigned char fbyte;
 501         unsigned int vbi_field_size;
 502         unsigned int remain, lencopy;
 503
 504         if (!dev)
 505                 return 0;
 506
 507         if (test_bit(DEV_DISCONNECTED, &dev->dev_state) ||
 508             test_bit(DEV_MISCONFIGURED, &dev->dev_state))
 509                 return 0;
 510
 511         if (urb->status < 0) {
 512                 print_err_status(dev, -1, urb->status);
 513                 if (urb->status == -ENOENT)
 514                         return 0;
 515         }
 516
 517         buf = dev->isoc_ctl.buf;
 518         if (buf != NULL)
 519                 outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
 520
 521         vbi_buf = dev->isoc_ctl.vbi_buf;
 522         if (vbi_buf != NULL)
 523                 vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0);
 524
 525         for (i = 0; i < urb->number_of_packets; i++) {
 526                 int status = urb->iso_frame_desc[i].status;
 527
 528                 if (status < 0) {
 529                         print_err_status(dev, i, status);
 530                         if (urb->iso_frame_desc[i].status != -EPROTO)
 531                                 continue;
 532                 }
 533
 534                 if (urb->iso_frame_desc[i].actual_length <= 0)
 535                         continue;
 536
 537                 if (urb->iso_frame_desc[i].actual_length >
 538                                                 dev->max_pkt_size) {
 539                         au0828_isocdbg("packet bigger than packet size");
 540                         continue;
 541                 }
 542
 543                 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
 544                 fbyte = p[0];
 545                 len = urb->iso_frame_desc[i].actual_length - 4;
 546                 p += 4;
 547
 548                 if (fbyte & 0x80) {
 549                         len -= 4;
 550                         p += 4;
 551                         au0828_isocdbg("Video frame %s\n",
 552                                        (fbyte & 0x40) ? "odd" : "even");
 553                         if (fbyte & 0x40) {
 554                                 /* VBI */
 555                                 if (vbi_buf != NULL)
 556                                         buffer_filled(dev, vbi_dma_q, vbi_buf);
 557                                 vbi_get_next_buf(vbi_dma_q, &vbi_buf);
 558                                 if (vbi_buf == NULL)
 559                                         vbioutp = NULL;
 560                                 else
 561                                         vbioutp = vb2_plane_vaddr(
 562                                                 &vbi_buf->vb.vb2_buf, 0);
 563
 564                                 /* Video */
 565                                 if (buf != NULL)
 566                                         buffer_filled(dev, dma_q, buf);
 567                                 get_next_buf(dma_q, &buf);
 568                                 if (buf == NULL)
 569                                         outp = NULL;
 570                                 else
 571                                         outp = vb2_plane_vaddr(
 572                                                 &buf->vb.vb2_buf, 0);
 573
 574                                 /* As long as isoc traffic is arriving, keep
 575                                    resetting the timer */
 576                                 if (dev->vid_timeout_running)
 577                                         mod_timer(&dev->vid_timeout,
 578                                                   jiffies + (HZ / 10));
 579                                 if (dev->vbi_timeout_running)
 580                                         mod_timer(&dev->vbi_timeout,
 581                                                   jiffies + (HZ / 10));
 582                         }
 583
 584                         if (buf != NULL) {
 585                                 if (fbyte & 0x40)
 586                                         buf->top_field = 1;
 587                                 else
 588                                         buf->top_field = 0;
 589                         }
 590
 591                         if (vbi_buf != NULL) {
 592                                 if (fbyte & 0x40)
 593                                         vbi_buf->top_field = 1;
 594                                 else
 595                                         vbi_buf->top_field = 0;
 596                         }
 597
 598                         dev->vbi_read = 0;
 599                         vbi_dma_q->pos = 0;
 600                         dma_q->pos = 0;
 601                 }
 602
 603                 vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
 604                 if (dev->vbi_read < vbi_field_size) {
 605                         remain  = vbi_field_size - dev->vbi_read;
 606                         if (len < remain)
 607                                 lencopy = len;
 608                         else
 609                                 lencopy = remain;
 610
 611                         if (vbi_buf != NULL)
 612                                 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
 613                                                 vbioutp, len);
 614
 615                         len -= lencopy;
 616                         p += lencopy;
 617                         dev->vbi_read += lencopy;
 618                 }
 619
 620                 if (dev->vbi_read >= vbi_field_size && buf != NULL)
 621                         au0828_copy_video(dev, dma_q, buf, p, outp, len);
 622         }
 623         return rc;
 624 }
 625
 626 void au0828_usb_v4l2_media_release(struct au0828_dev *dev)
 627 {
 628 #ifdef CONFIG_MEDIA_CONTROLLER
 629         int i;
 630
 631         for (i = 0; i < AU0828_MAX_INPUT; i++) {
 632                 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
 633                         return;
 634                 media_device_unregister_entity(&dev->input_ent[i]);
 635         }
 636 #endif
 637 }
 638
 639 static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev)
 640 {
 641         struct au0828_dev *dev =
 642                 container_of(v4l2_dev, struct au0828_dev, v4l2_dev);
 643
 644         v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl);
 645         v4l2_device_unregister(&dev->v4l2_dev);
 646         au0828_usb_v4l2_media_release(dev);
 647         au0828_usb_release(dev);
 648 }
 649
 650 int au0828_v4l2_device_register(struct usb_interface *interface,
 651                                 struct au0828_dev *dev)
 652 {
 653         int retval;
 654
 655         if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
 656                 return 0;
 657
 658         /* Create the v4l2_device */
 659 #ifdef CONFIG_MEDIA_CONTROLLER
 660         dev->v4l2_dev.mdev = dev->media_dev;
 661 #endif
 662         retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
 663         if (retval) {
 664                 pr_err("%s() v4l2_device_register failed\n",
 665                        __func__);
 666                 return retval;
 667         }
 668
 669         dev->v4l2_dev.release = au0828_usb_v4l2_release;
 670
 671         /* This control handler will inherit the controls from au8522 */
 672         retval = v4l2_ctrl_handler_init(&dev->v4l2_ctrl_hdl, 4);
 673         if (retval) {
 674                 pr_err("%s() v4l2_ctrl_handler_init failed\n",
 675                        __func__);
 676                 return retval;
 677         }
 678         dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl;
 679
 680         return 0;
 681 }
 682
 683 static int queue_setup(struct vb2_queue *vq,
 684                        unsigned int *nbuffers, unsigned int *nplanes,
 685                        unsigned int sizes[], struct device *alloc_devs[])
 686 {
 687         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 688         unsigned long size = dev->height * dev->bytesperline;
 689
 690         if (*nplanes)
 691                 return sizes[0] < size ? -EINVAL : 0;
 692         *nplanes = 1;
 693         sizes[0] = size;
 694         return 0;
 695 }
 696
 697 static int
 698 buffer_prepare(struct vb2_buffer *vb)
 699 {
 700         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 701         struct au0828_buffer *buf = container_of(vbuf,
 702                                 struct au0828_buffer, vb);
 703         struct au0828_dev    *dev = vb2_get_drv_priv(vb->vb2_queue);
 704
 705         buf->length = dev->height * dev->bytesperline;
 706
 707         if (vb2_plane_size(vb, 0) < buf->length) {
 708                 pr_err("%s data will not fit into plane (%lu < %lu)\n",
 709                         __func__, vb2_plane_size(vb, 0), buf->length);
 710                 return -EINVAL;
 711         }
 712         vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length);
 713         return 0;
 714 }
 715
 716 static void
 717 buffer_queue(struct vb2_buffer *vb)
 718 {
 719         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 720         struct au0828_buffer    *buf     = container_of(vbuf,
 721                                                         struct au0828_buffer,
 722                                                         vb);
 723         struct au0828_dev       *dev     = vb2_get_drv_priv(vb->vb2_queue);
 724         struct au0828_dmaqueue  *vidq    = &dev->vidq;
 725         unsigned long flags = 0;
 726
 727         buf->mem = vb2_plane_vaddr(vb, 0);
 728         buf->length = vb2_plane_size(vb, 0);
 729
 730         spin_lock_irqsave(&dev->slock, flags);
 731         list_add_tail(&buf->list, &vidq->active);
 732         spin_unlock_irqrestore(&dev->slock, flags);
 733 }
 734
 735 static int au0828_i2s_init(struct au0828_dev *dev)
 736 {
 737         /* Enable i2s mode */
 738         au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
 739         return 0;
 740 }
 741
 742 /*
 743  * Auvitek au0828 analog stream enable
 744  */
 745 static int au0828_analog_stream_enable(struct au0828_dev *d)
 746 {
 747         struct usb_interface *iface;
 748         int ret, h, w;
 749
 750         dprintk(1, "au0828_analog_stream_enable called\n");
 751
 752         if (test_bit(DEV_DISCONNECTED, &d->dev_state))
 753                 return -ENODEV;
 754
 755         iface = usb_ifnum_to_if(d->usbdev, 0);
 756         if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) {
 757                 dprintk(1, "Changing intf#0 to alt 5\n");
 758                 /* set au0828 interface0 to AS5 here again */
 759                 ret = usb_set_interface(d->usbdev, 0, 5);
 760                 if (ret < 0) {
 761                         pr_info("Au0828 can't set alt setting to 5!\n");
 762                         return -EBUSY;
 763                 }
 764         }
 765
 766         h = d->height / 2 + 2;
 767         w = d->width * 2;
 768
 769         au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
 770         au0828_writereg(d, 0x106, 0x00);
 771         /* set x position */
 772         au0828_writereg(d, 0x110, 0x00);
 773         au0828_writereg(d, 0x111, 0x00);
 774         au0828_writereg(d, 0x114, w & 0xff);
 775         au0828_writereg(d, 0x115, w >> 8);
 776         /* set y position */
 777         au0828_writereg(d, 0x112, 0x00);
 778         au0828_writereg(d, 0x113, 0x00);
 779         au0828_writereg(d, 0x116, h & 0xff);
 780         au0828_writereg(d, 0x117, h >> 8);
 781         au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
 782
 783         return 0;
 784 }
 785
 786 static int au0828_analog_stream_disable(struct au0828_dev *d)
 787 {
 788         dprintk(1, "au0828_analog_stream_disable called\n");
 789         au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
 790         return 0;
 791 }
 792
 793 static void au0828_analog_stream_reset(struct au0828_dev *dev)
 794 {
 795         dprintk(1, "au0828_analog_stream_reset called\n");
 796         au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
 797         mdelay(30);
 798         au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
 799 }
 800
 801 /*
 802  * Some operations needs to stop current streaming
 803  */
 804 static int au0828_stream_interrupt(struct au0828_dev *dev)
 805 {
 806         dev->stream_state = STREAM_INTERRUPT;
 807         if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
 808                 return -ENODEV;
 809         return 0;
 810 }
 811
 812 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
 813 {
 814         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 815         int rc = 0;
 816
 817         dprintk(1, "au0828_start_analog_streaming called %d\n",
 818                 dev->streaming_users);
 819
 820         if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 821                 dev->frame_count = 0;
 822         else
 823                 dev->vbi_frame_count = 0;
 824
 825         if (dev->streaming_users == 0) {
 826                 /* If we were doing ac97 instead of i2s, it would go here...*/
 827                 au0828_i2s_init(dev);
 828                 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
 829                                    AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
 830                                    au0828_isoc_copy);
 831                 if (rc < 0) {
 832                         pr_info("au0828_init_isoc failed\n");
 833                         return rc;
 834                 }
 835
 836                 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 1);
 837
 838                 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 839                         dev->vid_timeout_running = 1;
 840                         mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
 841                 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
 842                         dev->vbi_timeout_running = 1;
 843                         mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
 844                 }
 845         }
 846         dev->streaming_users++;
 847         return rc;
 848 }
 849
 850 static void au0828_stop_streaming(struct vb2_queue *vq)
 851 {
 852         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 853         struct au0828_dmaqueue *vidq = &dev->vidq;
 854         unsigned long flags = 0;
 855
 856         dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users);
 857
 858         if (dev->streaming_users-- == 1) {
 859                 au0828_uninit_isoc(dev);
 860                 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
 861         }
 862
 863         dev->vid_timeout_running = 0;
 864         del_timer_sync(&dev->vid_timeout);
 865
 866         spin_lock_irqsave(&dev->slock, flags);
 867         if (dev->isoc_ctl.buf != NULL) {
 868                 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf,
 869                                 VB2_BUF_STATE_ERROR);
 870                 dev->isoc_ctl.buf = NULL;
 871         }
 872         while (!list_empty(&vidq->active)) {
 873                 struct au0828_buffer *buf;
 874
 875                 buf = list_entry(vidq->active.next, struct au0828_buffer, list);
 876                 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 877                 list_del(&buf->list);
 878         }
 879         spin_unlock_irqrestore(&dev->slock, flags);
 880 }
 881
 882 void au0828_stop_vbi_streaming(struct vb2_queue *vq)
 883 {
 884         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 885         struct au0828_dmaqueue *vbiq = &dev->vbiq;
 886         unsigned long flags = 0;
 887
 888         dprintk(1, "au0828_stop_vbi_streaming called %d\n",
 889                 dev->streaming_users);
 890
 891         if (dev->streaming_users-- == 1) {
 892                 au0828_uninit_isoc(dev);
 893                 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
 894         }
 895
 896         spin_lock_irqsave(&dev->slock, flags);
 897         if (dev->isoc_ctl.vbi_buf != NULL) {
 898                 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf,
 899                                 VB2_BUF_STATE_ERROR);
 900                 dev->isoc_ctl.vbi_buf = NULL;
 901         }
 902         while (!list_empty(&vbiq->active)) {
 903                 struct au0828_buffer *buf;
 904
 905                 buf = list_entry(vbiq->active.next, struct au0828_buffer, list);
 906                 list_del(&buf->list);
 907                 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 908         }
 909         spin_unlock_irqrestore(&dev->slock, flags);
 910
 911         dev->vbi_timeout_running = 0;
 912         del_timer_sync(&dev->vbi_timeout);
 913 }
 914
 915 static const struct vb2_ops au0828_video_qops = {
 916         .queue_setup     = queue_setup,
 917         .buf_prepare     = buffer_prepare,
 918         .buf_queue       = buffer_queue,
 919         .start_streaming = au0828_start_analog_streaming,
 920         .stop_streaming  = au0828_stop_streaming,
 921         .wait_prepare    = vb2_ops_wait_prepare,
 922         .wait_finish     = vb2_ops_wait_finish,
 923 };
 924
 925 /* ------------------------------------------------------------------
 926    V4L2 interface
 927    ------------------------------------------------------------------*/
 928 /*
 929  * au0828_analog_unregister
 930  * unregister v4l2 devices
 931  */
 932 int au0828_analog_unregister(struct au0828_dev *dev)
 933 {
 934         dprintk(1, "au0828_analog_unregister called\n");
 935
 936         /* No analog TV */
 937         if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
 938                 return 0;
 939
 940         mutex_lock(&au0828_sysfs_lock);
 941         video_unregister_device(&dev->vdev);
 942         video_unregister_device(&dev->vbi_dev);
 943         mutex_unlock(&au0828_sysfs_lock);
 944
 945         v4l2_device_disconnect(&dev->v4l2_dev);
 946         v4l2_device_put(&dev->v4l2_dev);
 947
 948         return 1;
 949 }
 950
 951 /* This function ensures that video frames continue to be delivered even if
 952    the ITU-656 input isn't receiving any data (thereby preventing applications
 953    such as tvtime from hanging) */
 954 static void au0828_vid_buffer_timeout(struct timer_list *t)
 955 {
 956         struct au0828_dev *dev = from_timer(dev, t, vid_timeout);
 957         struct au0828_dmaqueue *dma_q = &dev->vidq;
 958         struct au0828_buffer *buf;
 959         unsigned char *vid_data;
 960         unsigned long flags = 0;
 961
 962         spin_lock_irqsave(&dev->slock, flags);
 963
 964         buf = dev->isoc_ctl.buf;
 965         if (buf != NULL) {
 966                 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
 967                 memset(vid_data, 0x00, buf->length); /* Blank green frame */
 968                 buffer_filled(dev, dma_q, buf);
 969         }
 970         get_next_buf(dma_q, &buf);
 971
 972         if (dev->vid_timeout_running == 1)
 973                 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
 974
 975         spin_unlock_irqrestore(&dev->slock, flags);
 976 }
 977
 978 static void au0828_vbi_buffer_timeout(struct timer_list *t)
 979 {
 980         struct au0828_dev *dev = from_timer(dev, t, vbi_timeout);
 981         struct au0828_dmaqueue *dma_q = &dev->vbiq;
 982         struct au0828_buffer *buf;
 983         unsigned char *vbi_data;
 984         unsigned long flags = 0;
 985
 986         spin_lock_irqsave(&dev->slock, flags);
 987
 988         buf = dev->isoc_ctl.vbi_buf;
 989         if (buf != NULL) {
 990                 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
 991                 memset(vbi_data, 0x00, buf->length);
 992                 buffer_filled(dev, dma_q, buf);
 993         }
 994         vbi_get_next_buf(dma_q, &buf);
 995
 996         if (dev->vbi_timeout_running == 1)
 997                 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
 998         spin_unlock_irqrestore(&dev->slock, flags);
 999 }
1000
1001 static int au0828_v4l2_open(struct file *filp)
1002 {
1003         struct au0828_dev *dev = video_drvdata(filp);
1004         int ret;
1005
1006         dprintk(1,
1007                 "%s called std_set %d dev_state %ld stream users %d users %d\n",
1008                 __func__, dev->std_set_in_tuner_core, dev->dev_state,
1009                 dev->streaming_users, dev->users);
1010
1011         if (mutex_lock_interruptible(&dev->lock))
1012                 return -ERESTARTSYS;
1013
1014         ret = v4l2_fh_open(filp);
1015         if (ret) {
1016                 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n",
1017                                 __func__, ret);
1018                 mutex_unlock(&dev->lock);
1019                 return ret;
1020         }
1021
1022         if (dev->users == 0) {
1023                 au0828_analog_stream_enable(dev);
1024                 au0828_analog_stream_reset(dev);
1025                 dev->stream_state = STREAM_OFF;
1026                 set_bit(DEV_INITIALIZED, &dev->dev_state);
1027         }
1028         dev->users++;
1029         mutex_unlock(&dev->lock);
1030         return ret;
1031 }
1032
1033 static int au0828_v4l2_close(struct file *filp)
1034 {
1035         int ret;
1036         struct au0828_dev *dev = video_drvdata(filp);
1037         struct video_device *vdev = video_devdata(filp);
1038
1039         dprintk(1,
1040                 "%s called std_set %d dev_state %ld stream users %d users %d\n",
1041                 __func__, dev->std_set_in_tuner_core, dev->dev_state,
1042                 dev->streaming_users, dev->users);
1043
1044         mutex_lock(&dev->lock);
1045         if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) {
1046                 /* Cancel timeout thread in case they didn't call streamoff */
1047                 dev->vid_timeout_running = 0;
1048                 del_timer_sync(&dev->vid_timeout);
1049         } else if (vdev->vfl_type == VFL_TYPE_VBI &&
1050                         dev->vbi_timeout_running) {
1051                 /* Cancel timeout thread in case they didn't call streamoff */
1052                 dev->vbi_timeout_running = 0;
1053                 del_timer_sync(&dev->vbi_timeout);
1054         }
1055
1056         if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
1057                 goto end;
1058
1059         if (dev->users == 1) {
1060                 /*
1061                  * Avoid putting tuner in sleep if DVB or ALSA are
1062                  * streaming.
1063                  *
1064                  * On most USB devices  like au0828 the tuner can
1065                  * be safely put in sleep state here if ALSA isn't
1066                  * streaming. Exceptions are some very old USB tuner
1067                  * models such as em28xx-based WinTV USB2 which have
1068                  * a separate audio output jack. The devices that have
1069                  * a separate audio output jack have analog tuners,
1070                  * like Philips FM1236. Those devices are always on,
1071                  * so the s_power callback are silently ignored.
1072                  * So, the current logic here does the following:
1073                  * Disable (put tuner to sleep) when
1074                  * - ALSA and DVB aren't streaming.
1075                  * - the last V4L2 file handler is closed.
1076                  *
1077                  * FIXME:
1078                  *
1079                  * Additionally, this logic could be improved to
1080                  * disable the media source if the above conditions
1081                  * are met and if the device:
1082                  * - doesn't have a separate audio out plug (or
1083                  * - doesn't use a silicon tuner like xc2028/3028/4000/5000).
1084                  *
1085                  * Once this additional logic is in place, a callback
1086                  * is needed to enable the media source and power on
1087                  * the tuner, for radio to work.
1088                 */
1089                 ret = v4l_enable_media_source(vdev);
1090                 if (ret == 0)
1091                         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner,
1092                                              standby);
1093                 dev->std_set_in_tuner_core = 0;
1094
1095                 /* When close the device, set the usb intf0 into alt0 to free
1096                    USB bandwidth */
1097                 ret = usb_set_interface(dev->usbdev, 0, 0);
1098                 if (ret < 0)
1099                         pr_info("Au0828 can't set alternate to 0!\n");
1100         }
1101 end:
1102         _vb2_fop_release(filp, NULL);
1103         dev->users--;
1104         mutex_unlock(&dev->lock);
1105         return 0;
1106 }
1107
1108 /* Must be called with dev->lock held */
1109 static void au0828_init_tuner(struct au0828_dev *dev)
1110 {
1111         struct v4l2_frequency f = {
1112                 .frequency = dev->ctrl_freq,
1113                 .type = V4L2_TUNER_ANALOG_TV,
1114         };
1115
1116         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1117                 dev->std_set_in_tuner_core, dev->dev_state);
1118
1119         if (dev->std_set_in_tuner_core)
1120                 return;
1121         dev->std_set_in_tuner_core = 1;
1122         i2c_gate_ctrl(dev, 1);
1123         /* If we've never sent the standard in tuner core, do so now.
1124            We don't do this at device probe because we don't want to
1125            incur the cost of a firmware load */
1126         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std);
1127         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
1128         i2c_gate_ctrl(dev, 0);
1129 }
1130
1131 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
1132                              struct v4l2_format *format)
1133 {
1134         int ret;
1135         int width = format->fmt.pix.width;
1136         int height = format->fmt.pix.height;
1137
1138         /* If they are demanding a format other than the one we support,
1139            bail out (tvtime asks for UYVY and then retries with YUYV) */
1140         if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)
1141                 return -EINVAL;
1142
1143         /* format->fmt.pix.width only support 720 and height 480 */
1144         if (width != 720)
1145                 width = 720;
1146         if (height != 480)
1147                 height = 480;
1148
1149         format->fmt.pix.width = width;
1150         format->fmt.pix.height = height;
1151         format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1152         format->fmt.pix.bytesperline = width * 2;
1153         format->fmt.pix.sizeimage = width * height * 2;
1154         format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1155         format->fmt.pix.field = V4L2_FIELD_INTERLACED;
1156         format->fmt.pix.priv = 0;
1157
1158         if (cmd == VIDIOC_TRY_FMT)
1159                 return 0;
1160
1161         /* maybe set new image format, driver current only support 720*480 */
1162         dev->width = width;
1163         dev->height = height;
1164         dev->frame_size = width * height * 2;
1165         dev->field_size = width * height;
1166         dev->bytesperline = width * 2;
1167
1168         if (dev->stream_state == STREAM_ON) {
1169                 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
1170                 ret = au0828_stream_interrupt(dev);
1171                 if (ret != 0) {
1172                         dprintk(1, "error interrupting video stream!\n");
1173                         return ret;
1174                 }
1175         }
1176
1177         au0828_analog_stream_enable(dev);
1178
1179         return 0;
1180 }
1181
1182 static int vidioc_querycap(struct file *file, void  *priv,
1183                            struct v4l2_capability *cap)
1184 {
1185         struct au0828_dev *dev = video_drvdata(file);
1186
1187         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1188                 dev->std_set_in_tuner_core, dev->dev_state);
1189
1190         strscpy(cap->driver, "au0828", sizeof(cap->driver));
1191         strscpy(cap->card, dev->board.name, sizeof(cap->card));
1192         usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info));
1193
1194         /* set the device capabilities */
1195         cap->capabilities =
1196                 V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1197                 V4L2_CAP_TUNER | V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE |
1198                 V4L2_CAP_DEVICE_CAPS;
1199         return 0;
1200 }
1201
1202 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1203                                         struct v4l2_fmtdesc *f)
1204 {
1205         if (f->index)
1206                 return -EINVAL;
1207
1208         dprintk(1, "%s called\n", __func__);
1209
1210         f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1211         strscpy(f->description, "Packed YUV2", sizeof(f->description));
1212
1213         f->flags = 0;
1214         f->pixelformat = V4L2_PIX_FMT_UYVY;
1215
1216         return 0;
1217 }
1218
1219 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1220                                         struct v4l2_format *f)
1221 {
1222         struct au0828_dev *dev = video_drvdata(file);
1223
1224         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1225                 dev->std_set_in_tuner_core, dev->dev_state);
1226
1227         f->fmt.pix.width = dev->width;
1228         f->fmt.pix.height = dev->height;
1229         f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1230         f->fmt.pix.bytesperline = dev->bytesperline;
1231         f->fmt.pix.sizeimage = dev->frame_size;
1232         f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
1233         f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1234         f->fmt.pix.priv = 0;
1235         return 0;
1236 }
1237
1238 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1239                                   struct v4l2_format *f)
1240 {
1241         struct au0828_dev *dev = video_drvdata(file);
1242
1243         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1244                 dev->std_set_in_tuner_core, dev->dev_state);
1245
1246         return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
1247 }
1248
1249 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1250                                 struct v4l2_format *f)
1251 {
1252         struct au0828_dev *dev = video_drvdata(file);
1253         int rc;
1254
1255         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1256                 dev->std_set_in_tuner_core, dev->dev_state);
1257
1258         rc = check_dev(dev);
1259         if (rc < 0)
1260                 return rc;
1261
1262         if (vb2_is_busy(&dev->vb_vidq)) {
1263                 pr_info("%s queue busy\n", __func__);
1264                 rc = -EBUSY;
1265                 goto out;
1266         }
1267
1268         rc = au0828_set_format(dev, VIDIOC_S_FMT, f);
1269 out:
1270         return rc;
1271 }
1272
1273 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
1274 {
1275         struct au0828_dev *dev = video_drvdata(file);
1276
1277         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1278                 dev->std_set_in_tuner_core, dev->dev_state);
1279
1280         if (norm == dev->std)
1281                 return 0;
1282
1283         if (dev->streaming_users > 0)
1284                 return -EBUSY;
1285
1286         dev->std = norm;
1287
1288         au0828_init_tuner(dev);
1289
1290         i2c_gate_ctrl(dev, 1);
1291
1292         /*
1293          * FIXME: when we support something other than 60Hz standards,
1294          * we are going to have to make the au0828 bridge adjust the size
1295          * of its capture buffer, which is currently hardcoded at 720x480
1296          */
1297
1298         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm);
1299
1300         i2c_gate_ctrl(dev, 0);
1301
1302         return 0;
1303 }
1304
1305 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
1306 {
1307         struct au0828_dev *dev = video_drvdata(file);
1308
1309         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1310                 dev->std_set_in_tuner_core, dev->dev_state);
1311
1312         *norm = dev->std;
1313         return 0;
1314 }
1315
1316 static int vidioc_enum_input(struct file *file, void *priv,
1317                                 struct v4l2_input *input)
1318 {
1319         struct au0828_dev *dev = video_drvdata(file);
1320         unsigned int tmp;
1321
1322         static const char *inames[] = {
1323                 [AU0828_VMUX_UNDEFINED] = "Undefined",
1324                 [AU0828_VMUX_COMPOSITE] = "Composite",
1325                 [AU0828_VMUX_SVIDEO] = "S-Video",
1326                 [AU0828_VMUX_CABLE] = "Cable TV",
1327                 [AU0828_VMUX_TELEVISION] = "Television",
1328                 [AU0828_VMUX_DVB] = "DVB",
1329         };
1330
1331         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1332                 dev->std_set_in_tuner_core, dev->dev_state);
1333
1334         tmp = input->index;
1335
1336         if (tmp >= AU0828_MAX_INPUT)
1337                 return -EINVAL;
1338         if (AUVI_INPUT(tmp).type == 0)
1339                 return -EINVAL;
1340
1341         input->index = tmp;
1342         strscpy(input->name, inames[AUVI_INPUT(tmp).type], sizeof(input->name));
1343         if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
1344             (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) {
1345                 input->type |= V4L2_INPUT_TYPE_TUNER;
1346                 input->audioset = 1;
1347         } else {
1348                 input->type |= V4L2_INPUT_TYPE_CAMERA;
1349                 input->audioset = 2;
1350         }
1351
1352         input->std = dev->vdev.tvnorms;
1353
1354         return 0;
1355 }
1356
1357 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1358 {
1359         struct au0828_dev *dev = video_drvdata(file);
1360
1361         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1362                 dev->std_set_in_tuner_core, dev->dev_state);
1363
1364         *i = dev->ctrl_input;
1365         return 0;
1366 }
1367
1368 static void au0828_s_input(struct au0828_dev *dev, int index)
1369 {
1370         int i;
1371
1372         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1373                 dev->std_set_in_tuner_core, dev->dev_state);
1374
1375         switch (AUVI_INPUT(index).type) {
1376         case AU0828_VMUX_SVIDEO:
1377                 dev->input_type = AU0828_VMUX_SVIDEO;
1378                 dev->ctrl_ainput = 1;
1379                 break;
1380         case AU0828_VMUX_COMPOSITE:
1381                 dev->input_type = AU0828_VMUX_COMPOSITE;
1382                 dev->ctrl_ainput = 1;
1383                 break;
1384         case AU0828_VMUX_TELEVISION:
1385                 dev->input_type = AU0828_VMUX_TELEVISION;
1386                 dev->ctrl_ainput = 0;
1387                 break;
1388         default:
1389                 dprintk(1, "unknown input type set [%d]\n",
1390                         AUVI_INPUT(index).type);
1391                 return;
1392         }
1393
1394         dev->ctrl_input = index;
1395
1396         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
1397                         AUVI_INPUT(index).vmux, 0, 0);
1398
1399         for (i = 0; i < AU0828_MAX_INPUT; i++) {
1400                 int enable = 0;
1401                 if (AUVI_INPUT(i).audio_setup == NULL)
1402                         continue;
1403
1404                 if (i == index)
1405                         enable = 1;
1406                 else
1407                         enable = 0;
1408                 if (enable) {
1409                         (AUVI_INPUT(i).audio_setup)(dev, enable);
1410                 } else {
1411                         /* Make sure we leave it turned on if some
1412                            other input is routed to this callback */
1413                         if ((AUVI_INPUT(i).audio_setup) !=
1414                             ((AUVI_INPUT(index).audio_setup))) {
1415                                 (AUVI_INPUT(i).audio_setup)(dev, enable);
1416                         }
1417                 }
1418         }
1419
1420         v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
1421                         AUVI_INPUT(index).amux, 0, 0);
1422 }
1423
1424 static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
1425 {
1426         struct au0828_dev *dev = video_drvdata(file);
1427         struct video_device *vfd = video_devdata(file);
1428
1429         dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
1430                 index);
1431         if (index >= AU0828_MAX_INPUT)
1432                 return -EINVAL;
1433         if (AUVI_INPUT(index).type == 0)
1434                 return -EINVAL;
1435
1436         if (dev->ctrl_input == index)
1437                 return 0;
1438
1439         au0828_s_input(dev, index);
1440
1441         /*
1442          * Input has been changed. Disable the media source
1443          * associated with the old input and enable source
1444          * for the newly set input
1445          */
1446         v4l_disable_media_source(vfd);
1447         return v4l_enable_media_source(vfd);
1448 }
1449
1450 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a)
1451 {
1452         if (a->index > 1)
1453                 return -EINVAL;
1454
1455         dprintk(1, "%s called\n", __func__);
1456
1457         if (a->index == 0)
1458                 strscpy(a->name, "Television", sizeof(a->name));
1459         else
1460                 strscpy(a->name, "Line in", sizeof(a->name));
1461
1462         a->capability = V4L2_AUDCAP_STEREO;
1463         return 0;
1464 }
1465
1466 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1467 {
1468         struct au0828_dev *dev = video_drvdata(file);
1469
1470         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1471                 dev->std_set_in_tuner_core, dev->dev_state);
1472
1473         a->index = dev->ctrl_ainput;
1474         if (a->index == 0)
1475                 strscpy(a->name, "Television", sizeof(a->name));
1476         else
1477                 strscpy(a->name, "Line in", sizeof(a->name));
1478
1479         a->capability = V4L2_AUDCAP_STEREO;
1480         return 0;
1481 }
1482
1483 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)
1484 {
1485         struct au0828_dev *dev = video_drvdata(file);
1486
1487         if (a->index != dev->ctrl_ainput)
1488                 return -EINVAL;
1489
1490         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1491                 dev->std_set_in_tuner_core, dev->dev_state);
1492         return 0;
1493 }
1494
1495 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1496 {
1497         struct au0828_dev *dev = video_drvdata(file);
1498         struct video_device *vfd = video_devdata(file);
1499         int ret;
1500
1501         if (t->index != 0)
1502                 return -EINVAL;
1503
1504         ret = v4l_enable_media_source(vfd);
1505         if (ret)
1506                 return ret;
1507
1508         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1509                 dev->std_set_in_tuner_core, dev->dev_state);
1510
1511         strscpy(t->name, "Auvitek tuner", sizeof(t->name));
1512
1513         au0828_init_tuner(dev);
1514         i2c_gate_ctrl(dev, 1);
1515         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1516         i2c_gate_ctrl(dev, 0);
1517         return 0;
1518 }
1519
1520 static int vidioc_s_tuner(struct file *file, void *priv,
1521                                 const struct v4l2_tuner *t)
1522 {
1523         struct au0828_dev *dev = video_drvdata(file);
1524
1525         if (t->index != 0)
1526                 return -EINVAL;
1527
1528         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1529                 dev->std_set_in_tuner_core, dev->dev_state);
1530
1531         au0828_init_tuner(dev);
1532         i2c_gate_ctrl(dev, 1);
1533         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1534         i2c_gate_ctrl(dev, 0);
1535
1536         dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
1537                 t->afc);
1538
1539         return 0;
1540
1541 }
1542
1543 static int vidioc_g_frequency(struct file *file, void *priv,
1544                                 struct v4l2_frequency *freq)
1545 {
1546         struct au0828_dev *dev = video_drvdata(file);
1547
1548         if (freq->tuner != 0)
1549                 return -EINVAL;
1550         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1551                 dev->std_set_in_tuner_core, dev->dev_state);
1552         freq->frequency = dev->ctrl_freq;
1553         return 0;
1554 }
1555
1556 static int vidioc_s_frequency(struct file *file, void *priv,
1557                                 const struct v4l2_frequency *freq)
1558 {
1559         struct au0828_dev *dev = video_drvdata(file);
1560         struct v4l2_frequency new_freq = *freq;
1561
1562         if (freq->tuner != 0)
1563                 return -EINVAL;
1564
1565         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1566                 dev->std_set_in_tuner_core, dev->dev_state);
1567
1568         au0828_init_tuner(dev);
1569         i2c_gate_ctrl(dev, 1);
1570
1571         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
1572         /* Get the actual set (and possibly clamped) frequency */
1573         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
1574         dev->ctrl_freq = new_freq.frequency;
1575
1576         i2c_gate_ctrl(dev, 0);
1577
1578         au0828_analog_stream_reset(dev);
1579
1580         return 0;
1581 }
1582
1583
1584 /* RAW VBI ioctls */
1585
1586 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1587                                 struct v4l2_format *format)
1588 {
1589         struct au0828_dev *dev = video_drvdata(file);
1590
1591         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1592                 dev->std_set_in_tuner_core, dev->dev_state);
1593
1594         format->fmt.vbi.samples_per_line = dev->vbi_width;
1595         format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1596         format->fmt.vbi.offset = 0;
1597         format->fmt.vbi.flags = 0;
1598         format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
1599
1600         format->fmt.vbi.count[0] = dev->vbi_height;
1601         format->fmt.vbi.count[1] = dev->vbi_height;
1602         format->fmt.vbi.start[0] = 21;
1603         format->fmt.vbi.start[1] = 284;
1604         memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
1605
1606         return 0;
1607 }
1608
1609 static int vidioc_g_pixelaspect(struct file *file, void *priv,
1610                                 int type, struct v4l2_fract *f)
1611 {
1612         struct au0828_dev *dev = video_drvdata(file);
1613
1614         if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1615                 return -EINVAL;
1616
1617         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1618                 dev->std_set_in_tuner_core, dev->dev_state);
1619
1620         f->numerator = 54;
1621         f->denominator = 59;
1622
1623         return 0;
1624 }
1625
1626 static int vidioc_g_selection(struct file *file, void *priv,
1627                               struct v4l2_selection *s)
1628 {
1629         struct au0828_dev *dev = video_drvdata(file);
1630
1631         if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1632                 return -EINVAL;
1633
1634         switch (s->target) {
1635         case V4L2_SEL_TGT_CROP_BOUNDS:
1636         case V4L2_SEL_TGT_CROP_DEFAULT:
1637                 s->r.left = 0;
1638                 s->r.top = 0;
1639                 s->r.width = dev->width;
1640                 s->r.height = dev->height;
1641                 break;
1642         default:
1643                 return -EINVAL;
1644         }
1645         return 0;
1646 }
1647
1648 #ifdef CONFIG_VIDEO_ADV_DEBUG
1649 static int vidioc_g_register(struct file *file, void *priv,
1650                              struct v4l2_dbg_register *reg)
1651 {
1652         struct au0828_dev *dev = video_drvdata(file);
1653
1654         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1655                 dev->std_set_in_tuner_core, dev->dev_state);
1656
1657         reg->val = au0828_read(dev, reg->reg);
1658         reg->size = 1;
1659         return 0;
1660 }
1661
1662 static int vidioc_s_register(struct file *file, void *priv,
1663                              const 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         return au0828_writereg(dev, reg->reg, reg->val);
1671 }
1672 #endif
1673
1674 static int vidioc_log_status(struct file *file, void *fh)
1675 {
1676         struct video_device *vdev = video_devdata(file);
1677
1678         dprintk(1, "%s called\n", __func__);
1679
1680         v4l2_ctrl_log_status(file, fh);
1681         v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status);
1682         return 0;
1683 }
1684
1685 void au0828_v4l2_suspend(struct au0828_dev *dev)
1686 {
1687         struct urb *urb;
1688         int i;
1689
1690         pr_info("stopping V4L2\n");
1691
1692         if (dev->stream_state == STREAM_ON) {
1693                 pr_info("stopping V4L2 active URBs\n");
1694                 au0828_analog_stream_disable(dev);
1695                 /* stop urbs */
1696                 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1697                         urb = dev->isoc_ctl.urb[i];
1698                         if (urb) {
1699                                 if (!irqs_disabled())
1700                                         usb_kill_urb(urb);
1701                                 else
1702                                         usb_unlink_urb(urb);
1703                         }
1704                 }
1705         }
1706
1707         if (dev->vid_timeout_running)
1708                 del_timer_sync(&dev->vid_timeout);
1709         if (dev->vbi_timeout_running)
1710                 del_timer_sync(&dev->vbi_timeout);
1711 }
1712
1713 void au0828_v4l2_resume(struct au0828_dev *dev)
1714 {
1715         int i, rc;
1716
1717         pr_info("restarting V4L2\n");
1718
1719         if (dev->stream_state == STREAM_ON) {
1720                 au0828_stream_interrupt(dev);
1721                 au0828_init_tuner(dev);
1722         }
1723
1724         if (dev->vid_timeout_running)
1725                 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
1726         if (dev->vbi_timeout_running)
1727                 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1728
1729         /* If we were doing ac97 instead of i2s, it would go here...*/
1730         au0828_i2s_init(dev);
1731
1732         au0828_analog_stream_enable(dev);
1733
1734         if (!(dev->stream_state == STREAM_ON)) {
1735                 au0828_analog_stream_reset(dev);
1736                 /* submit urbs */
1737                 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1738                         rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
1739                         if (rc) {
1740                                 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
1741                                                i, rc);
1742                                 au0828_uninit_isoc(dev);
1743                         }
1744                 }
1745         }
1746 }
1747
1748 static const struct v4l2_file_operations au0828_v4l_fops = {
1749         .owner      = THIS_MODULE,
1750         .open       = au0828_v4l2_open,
1751         .release    = au0828_v4l2_close,
1752         .read       = vb2_fop_read,
1753         .poll       = vb2_fop_poll,
1754         .mmap       = vb2_fop_mmap,
1755         .unlocked_ioctl = video_ioctl2,
1756 };
1757
1758 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1759         .vidioc_querycap            = vidioc_querycap,
1760         .vidioc_enum_fmt_vid_cap    = vidioc_enum_fmt_vid_cap,
1761         .vidioc_g_fmt_vid_cap       = vidioc_g_fmt_vid_cap,
1762         .vidioc_try_fmt_vid_cap     = vidioc_try_fmt_vid_cap,
1763         .vidioc_s_fmt_vid_cap       = vidioc_s_fmt_vid_cap,
1764         .vidioc_g_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
1765         .vidioc_try_fmt_vbi_cap     = vidioc_g_fmt_vbi_cap,
1766         .vidioc_s_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
1767         .vidioc_enumaudio           = vidioc_enumaudio,
1768         .vidioc_g_audio             = vidioc_g_audio,
1769         .vidioc_s_audio             = vidioc_s_audio,
1770         .vidioc_g_pixelaspect       = vidioc_g_pixelaspect,
1771         .vidioc_g_selection         = vidioc_g_selection,
1772
1773         .vidioc_reqbufs             = vb2_ioctl_reqbufs,
1774         .vidioc_create_bufs         = vb2_ioctl_create_bufs,
1775         .vidioc_prepare_buf         = vb2_ioctl_prepare_buf,
1776         .vidioc_querybuf            = vb2_ioctl_querybuf,
1777         .vidioc_qbuf                = vb2_ioctl_qbuf,
1778         .vidioc_dqbuf               = vb2_ioctl_dqbuf,
1779         .vidioc_expbuf               = vb2_ioctl_expbuf,
1780
1781         .vidioc_s_std               = vidioc_s_std,
1782         .vidioc_g_std               = vidioc_g_std,
1783         .vidioc_enum_input          = vidioc_enum_input,
1784         .vidioc_g_input             = vidioc_g_input,
1785         .vidioc_s_input             = vidioc_s_input,
1786
1787         .vidioc_streamon            = vb2_ioctl_streamon,
1788         .vidioc_streamoff           = vb2_ioctl_streamoff,
1789
1790         .vidioc_g_tuner             = vidioc_g_tuner,
1791         .vidioc_s_tuner             = vidioc_s_tuner,
1792         .vidioc_g_frequency         = vidioc_g_frequency,
1793         .vidioc_s_frequency         = vidioc_s_frequency,
1794 #ifdef CONFIG_VIDEO_ADV_DEBUG
1795         .vidioc_g_register          = vidioc_g_register,
1796         .vidioc_s_register          = vidioc_s_register,
1797 #endif
1798         .vidioc_log_status          = vidioc_log_status,
1799         .vidioc_subscribe_event     = v4l2_ctrl_subscribe_event,
1800         .vidioc_unsubscribe_event   = v4l2_event_unsubscribe,
1801 };
1802
1803 static const struct video_device au0828_video_template = {
1804         .fops                       = &au0828_v4l_fops,
1805         .release                    = video_device_release_empty,
1806         .ioctl_ops                  = &video_ioctl_ops,
1807         .tvnorms                    = V4L2_STD_NTSC_M | V4L2_STD_PAL_M,
1808 };
1809
1810 static int au0828_vb2_setup(struct au0828_dev *dev)
1811 {
1812         int rc;
1813         struct vb2_queue *q;
1814
1815         /* Setup Videobuf2 for Video capture */
1816         q = &dev->vb_vidq;
1817         q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1818         q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1819         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1820         q->drv_priv = dev;
1821         q->buf_struct_size = sizeof(struct au0828_buffer);
1822         q->ops = &au0828_video_qops;
1823         q->mem_ops = &vb2_vmalloc_memops;
1824
1825         rc = vb2_queue_init(q);
1826         if (rc < 0)
1827                 return rc;
1828
1829         /* Setup Videobuf2 for VBI capture */
1830         q = &dev->vb_vbiq;
1831         q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1832         q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1833         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1834         q->drv_priv = dev;
1835         q->buf_struct_size = sizeof(struct au0828_buffer);
1836         q->ops = &au0828_vbi_qops;
1837         q->mem_ops = &vb2_vmalloc_memops;
1838
1839         rc = vb2_queue_init(q);
1840         if (rc < 0)
1841                 return rc;
1842
1843         return 0;
1844 }
1845
1846 static void au0828_analog_create_entities(struct au0828_dev *dev)
1847 {
1848 #if defined(CONFIG_MEDIA_CONTROLLER)
1849         static const char * const inames[] = {
1850                 [AU0828_VMUX_COMPOSITE] = "Composite",
1851                 [AU0828_VMUX_SVIDEO] = "S-Video",
1852                 [AU0828_VMUX_CABLE] = "Cable TV",
1853                 [AU0828_VMUX_TELEVISION] = "Television",
1854                 [AU0828_VMUX_DVB] = "DVB",
1855         };
1856         int ret, i;
1857
1858         /* Initialize Video and VBI pads */
1859         dev->video_pad.flags = MEDIA_PAD_FL_SINK;
1860         ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad);
1861         if (ret < 0)
1862                 pr_err("failed to initialize video media entity!\n");
1863
1864         dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
1865         ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad);
1866         if (ret < 0)
1867                 pr_err("failed to initialize vbi media entity!\n");
1868
1869         /* Create entities for each input connector */
1870         for (i = 0; i < AU0828_MAX_INPUT; i++) {
1871                 struct media_entity *ent = &dev->input_ent[i];
1872
1873                 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
1874                         break;
1875
1876                 ent->name = inames[AUVI_INPUT(i).type];
1877                 ent->flags = MEDIA_ENT_FL_CONNECTOR;
1878                 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
1879
1880                 switch (AUVI_INPUT(i).type) {
1881                 case AU0828_VMUX_COMPOSITE:
1882                         ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
1883                         break;
1884                 case AU0828_VMUX_SVIDEO:
1885                         ent->function = MEDIA_ENT_F_CONN_SVIDEO;
1886                         break;
1887                 case AU0828_VMUX_CABLE:
1888                 case AU0828_VMUX_TELEVISION:
1889                 case AU0828_VMUX_DVB:
1890                 default: /* Just to shut up a warning */
1891                         ent->function = MEDIA_ENT_F_CONN_RF;
1892                         break;
1893                 }
1894
1895                 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
1896                 if (ret < 0)
1897                         pr_err("failed to initialize input pad[%d]!\n", i);
1898
1899                 ret = media_device_register_entity(dev->media_dev, ent);
1900                 if (ret < 0)
1901                         pr_err("failed to register input entity %d!\n", i);
1902         }
1903 #endif
1904 }
1905
1906 /**************************************************************************/
1907
1908 int au0828_analog_register(struct au0828_dev *dev,
1909                            struct usb_interface *interface)
1910 {
1911         int retval = -ENOMEM;
1912         struct usb_host_interface *iface_desc;
1913         struct usb_endpoint_descriptor *endpoint;
1914         int i, ret;
1915
1916         dprintk(1, "au0828_analog_register called for intf#%d!\n",
1917                 interface->cur_altsetting->desc.bInterfaceNumber);
1918
1919         /* No analog TV */
1920         if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
1921                 return 0;
1922
1923         /* set au0828 usb interface0 to as5 */
1924         retval = usb_set_interface(dev->usbdev,
1925                         interface->cur_altsetting->desc.bInterfaceNumber, 5);
1926         if (retval != 0) {
1927                 pr_info("Failure setting usb interface0 to as5\n");
1928                 return retval;
1929         }
1930
1931         /* Figure out which endpoint has the isoc interface */
1932         iface_desc = interface->cur_altsetting;
1933         for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
1934                 endpoint = &iface_desc->endpoint[i].desc;
1935                 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1936                      == USB_DIR_IN) &&
1937                     ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1938                      == USB_ENDPOINT_XFER_ISOC)) {
1939
1940                         /* we find our isoc in endpoint */
1941                         u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
1942                         dev->max_pkt_size = (tmp & 0x07ff) *
1943                                 (((tmp & 0x1800) >> 11) + 1);
1944                         dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
1945                         dprintk(1,
1946                                 "Found isoc endpoint 0x%02x, max size = %d\n",
1947                                 dev->isoc_in_endpointaddr, dev->max_pkt_size);
1948                 }
1949         }
1950         if (!(dev->isoc_in_endpointaddr)) {
1951                 pr_info("Could not locate isoc endpoint\n");
1952                 return -ENODEV;
1953         }
1954
1955         init_waitqueue_head(&dev->open);
1956         spin_lock_init(&dev->slock);
1957
1958         /* init video dma queues */
1959         INIT_LIST_HEAD(&dev->vidq.active);
1960         INIT_LIST_HEAD(&dev->vbiq.active);
1961
1962         timer_setup(&dev->vid_timeout, au0828_vid_buffer_timeout, 0);
1963         timer_setup(&dev->vbi_timeout, au0828_vbi_buffer_timeout, 0);
1964
1965         dev->width = NTSC_STD_W;
1966         dev->height = NTSC_STD_H;
1967         dev->field_size = dev->width * dev->height;
1968         dev->frame_size = dev->field_size << 1;
1969         dev->bytesperline = dev->width << 1;
1970         dev->vbi_width = 720;
1971         dev->vbi_height = 1;
1972         dev->ctrl_ainput = 0;
1973         dev->ctrl_freq = 960;
1974         dev->std = V4L2_STD_NTSC_M;
1975         /* Default input is TV Tuner */
1976         au0828_s_input(dev, 0);
1977
1978         mutex_init(&dev->vb_queue_lock);
1979         mutex_init(&dev->vb_vbi_queue_lock);
1980
1981         /* Fill the video capture device struct */
1982         dev->vdev = au0828_video_template;
1983         dev->vdev.v4l2_dev = &dev->v4l2_dev;
1984         dev->vdev.lock = &dev->lock;
1985         dev->vdev.queue = &dev->vb_vidq;
1986         dev->vdev.queue->lock = &dev->vb_queue_lock;
1987         dev->vdev.device_caps =
1988                 V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1989                 V4L2_CAP_TUNER | V4L2_CAP_VIDEO_CAPTURE;
1990         strscpy(dev->vdev.name, "au0828a video", sizeof(dev->vdev.name));
1991
1992         /* Setup the VBI device */
1993         dev->vbi_dev = au0828_video_template;
1994         dev->vbi_dev.v4l2_dev = &dev->v4l2_dev;
1995         dev->vbi_dev.lock = &dev->lock;
1996         dev->vbi_dev.queue = &dev->vb_vbiq;
1997         dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock;
1998         dev->vbi_dev.device_caps =
1999                 V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
2000                 V4L2_CAP_TUNER | V4L2_CAP_VBI_CAPTURE;
2001         strscpy(dev->vbi_dev.name, "au0828a vbi", sizeof(dev->vbi_dev.name));
2002
2003         /* Init entities at the Media Controller */
2004         au0828_analog_create_entities(dev);
2005
2006         /* initialize videobuf2 stuff */
2007         retval = au0828_vb2_setup(dev);
2008         if (retval != 0) {
2009                 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n",
2010                         retval);
2011                 return -ENODEV;
2012         }
2013
2014         /* Register the v4l2 device */
2015         video_set_drvdata(&dev->vdev, dev);
2016         retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1);
2017         if (retval != 0) {
2018                 dprintk(1, "unable to register video device (error = %d).\n",
2019                         retval);
2020                 ret = -ENODEV;
2021                 goto err_reg_vdev;
2022         }
2023
2024         /* Register the vbi device */
2025         video_set_drvdata(&dev->vbi_dev, dev);
2026         retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1);
2027         if (retval != 0) {
2028                 dprintk(1, "unable to register vbi device (error = %d).\n",
2029                         retval);
2030                 ret = -ENODEV;
2031                 goto err_reg_vbi_dev;
2032         }
2033
2034 #ifdef CONFIG_MEDIA_CONTROLLER
2035         retval = v4l2_mc_create_media_graph(dev->media_dev);
2036         if (retval) {
2037                 pr_err("%s() au0282_dev_register failed to create graph\n",
2038                         __func__);
2039                 ret = -ENODEV;
2040                 goto err_reg_vbi_dev;
2041         }
2042 #endif
2043
2044         dprintk(1, "%s completed!\n", __func__);
2045
2046         return 0;
2047
2048 err_reg_vbi_dev:
2049         video_unregister_device(&dev->vdev);
2050 err_reg_vdev:
2051         vb2_queue_release(&dev->vb_vidq);
2052         vb2_queue_release(&dev->vb_vbiq);
2053         return ret;
2054 }
2055