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
  18 /* Developer Notes:
  19  *
  20  * The hardware scaler supported is unimplemented
  21  * AC97 audio support is unimplemented (only i2s audio mode)
  22  *
  23  */
  24
  25 #include "au0828.h"
  26 #include "au8522.h"
  27
  28 #include <linux/module.h>
  29 #include <linux/slab.h>
  30 #include <linux/init.h>
  31 #include <linux/device.h>
  32 #include <media/v4l2-common.h>
  33 #include <media/v4l2-mc.h>
  34 #include <media/v4l2-ioctl.h>
  35 #include <media/v4l2-event.h>
  36 #include <media/tuner.h>
  37 #include "au0828-reg.h"
  38
  39 static DEFINE_MUTEX(au0828_sysfs_lock);
  40
  41 /* ------------------------------------------------------------------
  42         Videobuf operations
  43    ------------------------------------------------------------------*/
  44
  45 static unsigned int isoc_debug;
  46 module_param(isoc_debug, int, 0644);
  47 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
  48
  49 #define au0828_isocdbg(fmt, arg...) \
  50 do {\
  51         if (isoc_debug) { \
  52                 pr_info("au0828 %s :"fmt, \
  53                        __func__ , ##arg);          \
  54         } \
  55   } while (0)
  56
  57 static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val)
  58 {
  59         if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
  60                 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val);
  61 }
  62
  63 static inline void print_err_status(struct au0828_dev *dev,
  64                                     int packet, int status)
  65 {
  66         char *errmsg = "Unknown";
  67
  68         switch (status) {
  69         case -ENOENT:
  70                 errmsg = "unlinked synchronously";
  71                 break;
  72         case -ECONNRESET:
  73                 errmsg = "unlinked asynchronously";
  74                 break;
  75         case -ENOSR:
  76                 errmsg = "Buffer error (overrun)";
  77                 break;
  78         case -EPIPE:
  79                 errmsg = "Stalled (device not responding)";
  80                 break;
  81         case -EOVERFLOW:
  82                 errmsg = "Babble (bad cable?)";
  83                 break;
  84         case -EPROTO:
  85                 errmsg = "Bit-stuff error (bad cable?)";
  86                 break;
  87         case -EILSEQ:
  88                 errmsg = "CRC/Timeout (could be anything)";
  89                 break;
  90         case -ETIME:
  91                 errmsg = "Device does not respond";
  92                 break;
  93         }
  94         if (packet < 0) {
  95                 au0828_isocdbg("URB status %d [%s].\n", status, errmsg);
  96         } else {
  97                 au0828_isocdbg("URB packet %d, status %d [%s].\n",
  98                                packet, status, errmsg);
  99         }
 100 }
 101
 102 static int check_dev(struct au0828_dev *dev)
 103 {
 104         if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) {
 105                 pr_info("v4l2 ioctl: device not present\n");
 106                 return -ENODEV;
 107         }
 108
 109         if (test_bit(DEV_MISCONFIGURED, &dev->dev_state)) {
 110                 pr_info("v4l2 ioctl: device is misconfigured; close and open it again\n");
 111                 return -EIO;
 112         }
 113         return 0;
 114 }
 115
 116 /*
 117  * IRQ callback, called by URB callback
 118  */
 119 static void au0828_irq_callback(struct urb *urb)
 120 {
 121         struct au0828_dmaqueue  *dma_q = urb->context;
 122         struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
 123         unsigned long flags = 0;
 124         int i;
 125
 126         switch (urb->status) {
 127         case 0:             /* success */
 128         case -ETIMEDOUT:    /* NAK */
 129                 break;
 130         case -ECONNRESET:   /* kill */
 131         case -ENOENT:
 132         case -ESHUTDOWN:
 133                 au0828_isocdbg("au0828_irq_callback called: status kill\n");
 134                 return;
 135         default:            /* unknown error */
 136                 au0828_isocdbg("urb completion error %d.\n", urb->status);
 137                 break;
 138         }
 139
 140         /* Copy data from URB */
 141         spin_lock_irqsave(&dev->slock, flags);
 142         dev->isoc_ctl.isoc_copy(dev, urb);
 143         spin_unlock_irqrestore(&dev->slock, flags);
 144
 145         /* Reset urb buffers */
 146         for (i = 0; i < urb->number_of_packets; i++) {
 147                 urb->iso_frame_desc[i].status = 0;
 148                 urb->iso_frame_desc[i].actual_length = 0;
 149         }
 150         urb->status = 0;
 151
 152         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 153         if (urb->status) {
 154                 au0828_isocdbg("urb resubmit failed (error=%i)\n",
 155                                urb->status);
 156         }
 157         dev->stream_state = STREAM_ON;
 158 }
 159
 160 /*
 161  * Stop and Deallocate URBs
 162  */
 163 static void au0828_uninit_isoc(struct au0828_dev *dev)
 164 {
 165         struct urb *urb;
 166         int i;
 167
 168         au0828_isocdbg("au0828: called au0828_uninit_isoc\n");
 169
 170         dev->isoc_ctl.nfields = -1;
 171         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 172                 urb = dev->isoc_ctl.urb[i];
 173                 if (urb) {
 174                         if (!irqs_disabled())
 175                                 usb_kill_urb(urb);
 176                         else
 177                                 usb_unlink_urb(urb);
 178
 179                         if (dev->isoc_ctl.transfer_buffer[i]) {
 180                                 usb_free_coherent(dev->usbdev,
 181                                         urb->transfer_buffer_length,
 182                                         dev->isoc_ctl.transfer_buffer[i],
 183                                         urb->transfer_dma);
 184                         }
 185                         usb_free_urb(urb);
 186                         dev->isoc_ctl.urb[i] = NULL;
 187                 }
 188                 dev->isoc_ctl.transfer_buffer[i] = NULL;
 189         }
 190
 191         kfree(dev->isoc_ctl.urb);
 192         kfree(dev->isoc_ctl.transfer_buffer);
 193
 194         dev->isoc_ctl.urb = NULL;
 195         dev->isoc_ctl.transfer_buffer = NULL;
 196         dev->isoc_ctl.num_bufs = 0;
 197
 198         dev->stream_state = STREAM_OFF;
 199 }
 200
 201 /*
 202  * Allocate URBs and start IRQ
 203  */
 204 static int au0828_init_isoc(struct au0828_dev *dev, int max_packets,
 205                             int num_bufs, int max_pkt_size,
 206                             int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb))
 207 {
 208         struct au0828_dmaqueue *dma_q = &dev->vidq;
 209         int i;
 210         int sb_size, pipe;
 211         struct urb *urb;
 212         int j, k;
 213         int rc;
 214
 215         au0828_isocdbg("au0828: called au0828_prepare_isoc\n");
 216
 217         dev->isoc_ctl.isoc_copy = isoc_copy;
 218         dev->isoc_ctl.num_bufs = num_bufs;
 219
 220         dev->isoc_ctl.urb = kcalloc(num_bufs, sizeof(void *),  GFP_KERNEL);
 221         if (!dev->isoc_ctl.urb) {
 222                 au0828_isocdbg("cannot alloc memory for usb buffers\n");
 223                 return -ENOMEM;
 224         }
 225
 226         dev->isoc_ctl.transfer_buffer = kcalloc(num_bufs, sizeof(void *),
 227                                                 GFP_KERNEL);
 228         if (!dev->isoc_ctl.transfer_buffer) {
 229                 au0828_isocdbg("cannot allocate memory for usb transfer\n");
 230                 kfree(dev->isoc_ctl.urb);
 231                 return -ENOMEM;
 232         }
 233
 234         dev->isoc_ctl.max_pkt_size = max_pkt_size;
 235         dev->isoc_ctl.buf = NULL;
 236
 237         sb_size = max_packets * dev->isoc_ctl.max_pkt_size;
 238
 239         /* allocate urbs and transfer buffers */
 240         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 241                 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
 242                 if (!urb) {
 243                         au0828_uninit_isoc(dev);
 244                         return -ENOMEM;
 245                 }
 246                 dev->isoc_ctl.urb[i] = urb;
 247
 248                 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev,
 249                         sb_size, GFP_KERNEL, &urb->transfer_dma);
 250                 if (!dev->isoc_ctl.transfer_buffer[i]) {
 251                         printk("unable to allocate %i bytes for transfer buffer %i%s\n",
 252                                         sb_size, i,
 253                                         in_interrupt() ? " while in int" : "");
 254                         au0828_uninit_isoc(dev);
 255                         return -ENOMEM;
 256                 }
 257                 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
 258
 259                 pipe = usb_rcvisocpipe(dev->usbdev,
 260                                        dev->isoc_in_endpointaddr),
 261
 262                 usb_fill_int_urb(urb, dev->usbdev, pipe,
 263                                  dev->isoc_ctl.transfer_buffer[i], sb_size,
 264                                  au0828_irq_callback, dma_q, 1);
 265
 266                 urb->number_of_packets = max_packets;
 267                 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
 268
 269                 k = 0;
 270                 for (j = 0; j < max_packets; j++) {
 271                         urb->iso_frame_desc[j].offset = k;
 272                         urb->iso_frame_desc[j].length =
 273                                                 dev->isoc_ctl.max_pkt_size;
 274                         k += dev->isoc_ctl.max_pkt_size;
 275                 }
 276         }
 277
 278         /* submit urbs and enables IRQ */
 279         for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
 280                 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
 281                 if (rc) {
 282                         au0828_isocdbg("submit of urb %i failed (error=%i)\n",
 283                                        i, rc);
 284                         au0828_uninit_isoc(dev);
 285                         return rc;
 286                 }
 287         }
 288
 289         return 0;
 290 }
 291
 292 /*
 293  * Announces that a buffer were filled and request the next
 294  */
 295 static inline void buffer_filled(struct au0828_dev *dev,
 296                                  struct au0828_dmaqueue *dma_q,
 297                                  struct au0828_buffer *buf)
 298 {
 299         struct vb2_v4l2_buffer *vb = &buf->vb;
 300         struct vb2_queue *q = vb->vb2_buf.vb2_queue;
 301
 302         /* Advice that buffer was filled */
 303         au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field);
 304
 305         if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 306                 vb->sequence = dev->frame_count++;
 307         else
 308                 vb->sequence = dev->vbi_frame_count++;
 309
 310         vb->field = V4L2_FIELD_INTERLACED;
 311         vb->vb2_buf.timestamp = ktime_get_ns();
 312         vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE);
 313 }
 314
 315 /*
 316  * Identify the buffer header type and properly handles
 317  */
 318 static void au0828_copy_video(struct au0828_dev *dev,
 319                               struct au0828_dmaqueue  *dma_q,
 320                               struct au0828_buffer *buf,
 321                               unsigned char *p,
 322                               unsigned char *outp, unsigned long len)
 323 {
 324         void *fieldstart, *startwrite, *startread;
 325         int  linesdone, currlinedone, offset, lencopy, remain;
 326         int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */
 327
 328         if (len == 0)
 329                 return;
 330
 331         if (dma_q->pos + len > buf->length)
 332                 len = buf->length - dma_q->pos;
 333
 334         startread = p;
 335         remain = len;
 336
 337         /* Interlaces frame */
 338         if (buf->top_field)
 339                 fieldstart = outp;
 340         else
 341                 fieldstart = outp + bytesperline;
 342
 343         linesdone = dma_q->pos / bytesperline;
 344         currlinedone = dma_q->pos % bytesperline;
 345         offset = linesdone * bytesperline * 2 + currlinedone;
 346         startwrite = fieldstart + offset;
 347         lencopy = bytesperline - currlinedone;
 348         lencopy = lencopy > remain ? remain : lencopy;
 349
 350         if ((char *)startwrite + lencopy > (char *)outp + buf->length) {
 351                 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
 352                                ((char *)startwrite + lencopy) -
 353                                ((char *)outp + buf->length));
 354                 remain = (char *)outp + buf->length - (char *)startwrite;
 355                 lencopy = remain;
 356         }
 357         if (lencopy <= 0)
 358                 return;
 359         memcpy(startwrite, startread, lencopy);
 360
 361         remain -= lencopy;
 362
 363         while (remain > 0) {
 364                 startwrite += lencopy + bytesperline;
 365                 startread += lencopy;
 366                 if (bytesperline > remain)
 367                         lencopy = remain;
 368                 else
 369                         lencopy = bytesperline;
 370
 371                 if ((char *)startwrite + lencopy > (char *)outp +
 372                     buf->length) {
 373                         au0828_isocdbg("Overflow %zi bytes past buf end (2)\n",
 374                                        ((char *)startwrite + lencopy) -
 375                                        ((char *)outp + buf->length));
 376                         lencopy = remain = (char *)outp + buf->length -
 377                                            (char *)startwrite;
 378                 }
 379                 if (lencopy <= 0)
 380                         break;
 381
 382                 memcpy(startwrite, startread, lencopy);
 383
 384                 remain -= lencopy;
 385         }
 386
 387         if (offset > 1440) {
 388                 /* We have enough data to check for greenscreen */
 389                 if (outp[0] < 0x60 && outp[1440] < 0x60)
 390                         dev->greenscreen_detected = 1;
 391         }
 392
 393         dma_q->pos += len;
 394 }
 395
 396 /*
 397  * video-buf generic routine to get the next available buffer
 398  */
 399 static inline void get_next_buf(struct au0828_dmaqueue *dma_q,
 400                                 struct au0828_buffer **buf)
 401 {
 402         struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
 403
 404         if (list_empty(&dma_q->active)) {
 405                 au0828_isocdbg("No active queue to serve\n");
 406                 dev->isoc_ctl.buf = NULL;
 407                 *buf = NULL;
 408                 return;
 409         }
 410
 411         /* Get the next buffer */
 412         *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
 413         /* Cleans up buffer - Useful for testing for frame/URB loss */
 414         list_del(&(*buf)->list);
 415         dma_q->pos = 0;
 416         (*buf)->vb_buf = (*buf)->mem;
 417         dev->isoc_ctl.buf = *buf;
 418
 419         return;
 420 }
 421
 422 static void au0828_copy_vbi(struct au0828_dev *dev,
 423                               struct au0828_dmaqueue  *dma_q,
 424                               struct au0828_buffer *buf,
 425                               unsigned char *p,
 426                               unsigned char *outp, unsigned long len)
 427 {
 428         unsigned char *startwrite, *startread;
 429         int bytesperline;
 430         int i, j = 0;
 431
 432         if (dev == NULL) {
 433                 au0828_isocdbg("dev is null\n");
 434                 return;
 435         }
 436
 437         if (dma_q == NULL) {
 438                 au0828_isocdbg("dma_q is null\n");
 439                 return;
 440         }
 441         if (buf == NULL)
 442                 return;
 443         if (p == NULL) {
 444                 au0828_isocdbg("p is null\n");
 445                 return;
 446         }
 447         if (outp == NULL) {
 448                 au0828_isocdbg("outp is null\n");
 449                 return;
 450         }
 451
 452         bytesperline = dev->vbi_width;
 453
 454         if (dma_q->pos + len > buf->length)
 455                 len = buf->length - dma_q->pos;
 456
 457         startread = p;
 458         startwrite = outp + (dma_q->pos / 2);
 459
 460         /* Make sure the bottom field populates the second half of the frame */
 461         if (buf->top_field == 0)
 462                 startwrite += bytesperline * dev->vbi_height;
 463
 464         for (i = 0; i < len; i += 2)
 465                 startwrite[j++] = startread[i+1];
 466
 467         dma_q->pos += len;
 468 }
 469
 470
 471 /*
 472  * video-buf generic routine to get the next available VBI buffer
 473  */
 474 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q,
 475                                     struct au0828_buffer **buf)
 476 {
 477         struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq);
 478
 479         if (list_empty(&dma_q->active)) {
 480                 au0828_isocdbg("No active queue to serve\n");
 481                 dev->isoc_ctl.vbi_buf = NULL;
 482                 *buf = NULL;
 483                 return;
 484         }
 485
 486         /* Get the next buffer */
 487         *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
 488         /* Cleans up buffer - Useful for testing for frame/URB loss */
 489         list_del(&(*buf)->list);
 490         dma_q->pos = 0;
 491         (*buf)->vb_buf = (*buf)->mem;
 492         dev->isoc_ctl.vbi_buf = *buf;
 493         return;
 494 }
 495
 496 /*
 497  * Controls the isoc copy of each urb packet
 498  */
 499 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
 500 {
 501         struct au0828_buffer    *buf;
 502         struct au0828_buffer    *vbi_buf;
 503         struct au0828_dmaqueue  *dma_q = urb->context;
 504         struct au0828_dmaqueue  *vbi_dma_q = &dev->vbiq;
 505         unsigned char *outp = NULL;
 506         unsigned char *vbioutp = NULL;
 507         int i, len = 0, rc = 1;
 508         unsigned char *p;
 509         unsigned char fbyte;
 510         unsigned int vbi_field_size;
 511         unsigned int remain, lencopy;
 512
 513         if (!dev)
 514                 return 0;
 515
 516         if (test_bit(DEV_DISCONNECTED, &dev->dev_state) ||
 517             test_bit(DEV_MISCONFIGURED, &dev->dev_state))
 518                 return 0;
 519
 520         if (urb->status < 0) {
 521                 print_err_status(dev, -1, urb->status);
 522                 if (urb->status == -ENOENT)
 523                         return 0;
 524         }
 525
 526         buf = dev->isoc_ctl.buf;
 527         if (buf != NULL)
 528                 outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
 529
 530         vbi_buf = dev->isoc_ctl.vbi_buf;
 531         if (vbi_buf != NULL)
 532                 vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0);
 533
 534         for (i = 0; i < urb->number_of_packets; i++) {
 535                 int status = urb->iso_frame_desc[i].status;
 536
 537                 if (status < 0) {
 538                         print_err_status(dev, i, status);
 539                         if (urb->iso_frame_desc[i].status != -EPROTO)
 540                                 continue;
 541                 }
 542
 543                 if (urb->iso_frame_desc[i].actual_length <= 0)
 544                         continue;
 545
 546                 if (urb->iso_frame_desc[i].actual_length >
 547                                                 dev->max_pkt_size) {
 548                         au0828_isocdbg("packet bigger than packet size");
 549                         continue;
 550                 }
 551
 552                 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
 553                 fbyte = p[0];
 554                 len = urb->iso_frame_desc[i].actual_length - 4;
 555                 p += 4;
 556
 557                 if (fbyte & 0x80) {
 558                         len -= 4;
 559                         p += 4;
 560                         au0828_isocdbg("Video frame %s\n",
 561                                        (fbyte & 0x40) ? "odd" : "even");
 562                         if (fbyte & 0x40) {
 563                                 /* VBI */
 564                                 if (vbi_buf != NULL)
 565                                         buffer_filled(dev, vbi_dma_q, vbi_buf);
 566                                 vbi_get_next_buf(vbi_dma_q, &vbi_buf);
 567                                 if (vbi_buf == NULL)
 568                                         vbioutp = NULL;
 569                                 else
 570                                         vbioutp = vb2_plane_vaddr(
 571                                                 &vbi_buf->vb.vb2_buf, 0);
 572
 573                                 /* Video */
 574                                 if (buf != NULL)
 575                                         buffer_filled(dev, dma_q, buf);
 576                                 get_next_buf(dma_q, &buf);
 577                                 if (buf == NULL)
 578                                         outp = NULL;
 579                                 else
 580                                         outp = vb2_plane_vaddr(
 581                                                 &buf->vb.vb2_buf, 0);
 582
 583                                 /* As long as isoc traffic is arriving, keep
 584                                    resetting the timer */
 585                                 if (dev->vid_timeout_running)
 586                                         mod_timer(&dev->vid_timeout,
 587                                                   jiffies + (HZ / 10));
 588                                 if (dev->vbi_timeout_running)
 589                                         mod_timer(&dev->vbi_timeout,
 590                                                   jiffies + (HZ / 10));
 591                         }
 592
 593                         if (buf != NULL) {
 594                                 if (fbyte & 0x40)
 595                                         buf->top_field = 1;
 596                                 else
 597                                         buf->top_field = 0;
 598                         }
 599
 600                         if (vbi_buf != NULL) {
 601                                 if (fbyte & 0x40)
 602                                         vbi_buf->top_field = 1;
 603                                 else
 604                                         vbi_buf->top_field = 0;
 605                         }
 606
 607                         dev->vbi_read = 0;
 608                         vbi_dma_q->pos = 0;
 609                         dma_q->pos = 0;
 610                 }
 611
 612                 vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
 613                 if (dev->vbi_read < vbi_field_size) {
 614                         remain  = vbi_field_size - dev->vbi_read;
 615                         if (len < remain)
 616                                 lencopy = len;
 617                         else
 618                                 lencopy = remain;
 619
 620                         if (vbi_buf != NULL)
 621                                 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
 622                                                 vbioutp, len);
 623
 624                         len -= lencopy;
 625                         p += lencopy;
 626                         dev->vbi_read += lencopy;
 627                 }
 628
 629                 if (dev->vbi_read >= vbi_field_size && buf != NULL)
 630                         au0828_copy_video(dev, dma_q, buf, p, outp, len);
 631         }
 632         return rc;
 633 }
 634
 635 void au0828_usb_v4l2_media_release(struct au0828_dev *dev)
 636 {
 637 #ifdef CONFIG_MEDIA_CONTROLLER
 638         int i;
 639
 640         for (i = 0; i < AU0828_MAX_INPUT; i++) {
 641                 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
 642                         return;
 643                 media_device_unregister_entity(&dev->input_ent[i]);
 644         }
 645 #endif
 646 }
 647
 648 static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev)
 649 {
 650         struct au0828_dev *dev =
 651                 container_of(v4l2_dev, struct au0828_dev, v4l2_dev);
 652
 653         v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl);
 654         v4l2_device_unregister(&dev->v4l2_dev);
 655         au0828_usb_v4l2_media_release(dev);
 656         au0828_usb_release(dev);
 657 }
 658
 659 int au0828_v4l2_device_register(struct usb_interface *interface,
 660                                 struct au0828_dev *dev)
 661 {
 662         int retval;
 663
 664         if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
 665                 return 0;
 666
 667         /* Create the v4l2_device */
 668 #ifdef CONFIG_MEDIA_CONTROLLER
 669         dev->v4l2_dev.mdev = dev->media_dev;
 670 #endif
 671         retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
 672         if (retval) {
 673                 pr_err("%s() v4l2_device_register failed\n",
 674                        __func__);
 675                 return retval;
 676         }
 677
 678         dev->v4l2_dev.release = au0828_usb_v4l2_release;
 679
 680         /* This control handler will inherit the controls from au8522 */
 681         retval = v4l2_ctrl_handler_init(&dev->v4l2_ctrl_hdl, 4);
 682         if (retval) {
 683                 pr_err("%s() v4l2_ctrl_handler_init failed\n",
 684                        __func__);
 685                 return retval;
 686         }
 687         dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl;
 688
 689         return 0;
 690 }
 691
 692 static int queue_setup(struct vb2_queue *vq,
 693                        unsigned int *nbuffers, unsigned int *nplanes,
 694                        unsigned int sizes[], struct device *alloc_devs[])
 695 {
 696         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 697         unsigned long size = dev->height * dev->bytesperline;
 698
 699         if (*nplanes)
 700                 return sizes[0] < size ? -EINVAL : 0;
 701         *nplanes = 1;
 702         sizes[0] = size;
 703         return 0;
 704 }
 705
 706 static int
 707 buffer_prepare(struct vb2_buffer *vb)
 708 {
 709         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 710         struct au0828_buffer *buf = container_of(vbuf,
 711                                 struct au0828_buffer, vb);
 712         struct au0828_dev    *dev = vb2_get_drv_priv(vb->vb2_queue);
 713
 714         buf->length = dev->height * dev->bytesperline;
 715
 716         if (vb2_plane_size(vb, 0) < buf->length) {
 717                 pr_err("%s data will not fit into plane (%lu < %lu)\n",
 718                         __func__, vb2_plane_size(vb, 0), buf->length);
 719                 return -EINVAL;
 720         }
 721         vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length);
 722         return 0;
 723 }
 724
 725 static void
 726 buffer_queue(struct vb2_buffer *vb)
 727 {
 728         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 729         struct au0828_buffer    *buf     = container_of(vbuf,
 730                                                         struct au0828_buffer,
 731                                                         vb);
 732         struct au0828_dev       *dev     = vb2_get_drv_priv(vb->vb2_queue);
 733         struct au0828_dmaqueue  *vidq    = &dev->vidq;
 734         unsigned long flags = 0;
 735
 736         buf->mem = vb2_plane_vaddr(vb, 0);
 737         buf->length = vb2_plane_size(vb, 0);
 738
 739         spin_lock_irqsave(&dev->slock, flags);
 740         list_add_tail(&buf->list, &vidq->active);
 741         spin_unlock_irqrestore(&dev->slock, flags);
 742 }
 743
 744 static int au0828_i2s_init(struct au0828_dev *dev)
 745 {
 746         /* Enable i2s mode */
 747         au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
 748         return 0;
 749 }
 750
 751 /*
 752  * Auvitek au0828 analog stream enable
 753  */
 754 static int au0828_analog_stream_enable(struct au0828_dev *d)
 755 {
 756         struct usb_interface *iface;
 757         int ret, h, w;
 758
 759         dprintk(1, "au0828_analog_stream_enable called\n");
 760
 761         if (test_bit(DEV_DISCONNECTED, &d->dev_state))
 762                 return -ENODEV;
 763
 764         iface = usb_ifnum_to_if(d->usbdev, 0);
 765         if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) {
 766                 dprintk(1, "Changing intf#0 to alt 5\n");
 767                 /* set au0828 interface0 to AS5 here again */
 768                 ret = usb_set_interface(d->usbdev, 0, 5);
 769                 if (ret < 0) {
 770                         pr_info("Au0828 can't set alt setting to 5!\n");
 771                         return -EBUSY;
 772                 }
 773         }
 774
 775         h = d->height / 2 + 2;
 776         w = d->width * 2;
 777
 778         au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
 779         au0828_writereg(d, 0x106, 0x00);
 780         /* set x position */
 781         au0828_writereg(d, 0x110, 0x00);
 782         au0828_writereg(d, 0x111, 0x00);
 783         au0828_writereg(d, 0x114, w & 0xff);
 784         au0828_writereg(d, 0x115, w >> 8);
 785         /* set y position */
 786         au0828_writereg(d, 0x112, 0x00);
 787         au0828_writereg(d, 0x113, 0x00);
 788         au0828_writereg(d, 0x116, h & 0xff);
 789         au0828_writereg(d, 0x117, h >> 8);
 790         au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
 791
 792         return 0;
 793 }
 794
 795 static int au0828_analog_stream_disable(struct au0828_dev *d)
 796 {
 797         dprintk(1, "au0828_analog_stream_disable called\n");
 798         au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
 799         return 0;
 800 }
 801
 802 static void au0828_analog_stream_reset(struct au0828_dev *dev)
 803 {
 804         dprintk(1, "au0828_analog_stream_reset called\n");
 805         au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
 806         mdelay(30);
 807         au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
 808 }
 809
 810 /*
 811  * Some operations needs to stop current streaming
 812  */
 813 static int au0828_stream_interrupt(struct au0828_dev *dev)
 814 {
 815         dev->stream_state = STREAM_INTERRUPT;
 816         if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
 817                 return -ENODEV;
 818         return 0;
 819 }
 820
 821 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
 822 {
 823         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 824         int rc = 0;
 825
 826         dprintk(1, "au0828_start_analog_streaming called %d\n",
 827                 dev->streaming_users);
 828
 829         if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 830                 dev->frame_count = 0;
 831         else
 832                 dev->vbi_frame_count = 0;
 833
 834         if (dev->streaming_users == 0) {
 835                 /* If we were doing ac97 instead of i2s, it would go here...*/
 836                 au0828_i2s_init(dev);
 837                 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
 838                                    AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
 839                                    au0828_isoc_copy);
 840                 if (rc < 0) {
 841                         pr_info("au0828_init_isoc failed\n");
 842                         return rc;
 843                 }
 844
 845                 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 1);
 846
 847                 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 848                         dev->vid_timeout_running = 1;
 849                         mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
 850                 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
 851                         dev->vbi_timeout_running = 1;
 852                         mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
 853                 }
 854         }
 855         dev->streaming_users++;
 856         return rc;
 857 }
 858
 859 static void au0828_stop_streaming(struct vb2_queue *vq)
 860 {
 861         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 862         struct au0828_dmaqueue *vidq = &dev->vidq;
 863         unsigned long flags = 0;
 864
 865         dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users);
 866
 867         if (dev->streaming_users-- == 1) {
 868                 au0828_uninit_isoc(dev);
 869                 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
 870         }
 871
 872         dev->vid_timeout_running = 0;
 873         del_timer_sync(&dev->vid_timeout);
 874
 875         spin_lock_irqsave(&dev->slock, flags);
 876         if (dev->isoc_ctl.buf != NULL) {
 877                 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf,
 878                                 VB2_BUF_STATE_ERROR);
 879                 dev->isoc_ctl.buf = NULL;
 880         }
 881         while (!list_empty(&vidq->active)) {
 882                 struct au0828_buffer *buf;
 883
 884                 buf = list_entry(vidq->active.next, struct au0828_buffer, list);
 885                 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 886                 list_del(&buf->list);
 887         }
 888         spin_unlock_irqrestore(&dev->slock, flags);
 889 }
 890
 891 void au0828_stop_vbi_streaming(struct vb2_queue *vq)
 892 {
 893         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 894         struct au0828_dmaqueue *vbiq = &dev->vbiq;
 895         unsigned long flags = 0;
 896
 897         dprintk(1, "au0828_stop_vbi_streaming called %d\n",
 898                 dev->streaming_users);
 899
 900         if (dev->streaming_users-- == 1) {
 901                 au0828_uninit_isoc(dev);
 902                 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
 903         }
 904
 905         spin_lock_irqsave(&dev->slock, flags);
 906         if (dev->isoc_ctl.vbi_buf != NULL) {
 907                 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf,
 908                                 VB2_BUF_STATE_ERROR);
 909                 dev->isoc_ctl.vbi_buf = NULL;
 910         }
 911         while (!list_empty(&vbiq->active)) {
 912                 struct au0828_buffer *buf;
 913
 914                 buf = list_entry(vbiq->active.next, struct au0828_buffer, list);
 915                 list_del(&buf->list);
 916                 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 917         }
 918         spin_unlock_irqrestore(&dev->slock, flags);
 919
 920         dev->vbi_timeout_running = 0;
 921         del_timer_sync(&dev->vbi_timeout);
 922 }
 923
 924 static const struct vb2_ops au0828_video_qops = {
 925         .queue_setup     = queue_setup,
 926         .buf_prepare     = buffer_prepare,
 927         .buf_queue       = buffer_queue,
 928         .start_streaming = au0828_start_analog_streaming,
 929         .stop_streaming  = au0828_stop_streaming,
 930         .wait_prepare    = vb2_ops_wait_prepare,
 931         .wait_finish     = vb2_ops_wait_finish,
 932 };
 933
 934 /* ------------------------------------------------------------------
 935    V4L2 interface
 936    ------------------------------------------------------------------*/
 937 /*
 938  * au0828_analog_unregister
 939  * unregister v4l2 devices
 940  */
 941 int au0828_analog_unregister(struct au0828_dev *dev)
 942 {
 943         dprintk(1, "au0828_analog_unregister called\n");
 944
 945         /* No analog TV */
 946         if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
 947                 return 0;
 948
 949         mutex_lock(&au0828_sysfs_lock);
 950         video_unregister_device(&dev->vdev);
 951         video_unregister_device(&dev->vbi_dev);
 952         mutex_unlock(&au0828_sysfs_lock);
 953
 954         v4l2_device_disconnect(&dev->v4l2_dev);
 955         v4l2_device_put(&dev->v4l2_dev);
 956
 957         return 1;
 958 }
 959
 960 /* This function ensures that video frames continue to be delivered even if
 961    the ITU-656 input isn't receiving any data (thereby preventing applications
 962    such as tvtime from hanging) */
 963 static void au0828_vid_buffer_timeout(struct timer_list *t)
 964 {
 965         struct au0828_dev *dev = from_timer(dev, t, vid_timeout);
 966         struct au0828_dmaqueue *dma_q = &dev->vidq;
 967         struct au0828_buffer *buf;
 968         unsigned char *vid_data;
 969         unsigned long flags = 0;
 970
 971         spin_lock_irqsave(&dev->slock, flags);
 972
 973         buf = dev->isoc_ctl.buf;
 974         if (buf != NULL) {
 975                 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
 976                 memset(vid_data, 0x00, buf->length); /* Blank green frame */
 977                 buffer_filled(dev, dma_q, buf);
 978         }
 979         get_next_buf(dma_q, &buf);
 980
 981         if (dev->vid_timeout_running == 1)
 982                 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
 983
 984         spin_unlock_irqrestore(&dev->slock, flags);
 985 }
 986
 987 static void au0828_vbi_buffer_timeout(struct timer_list *t)
 988 {
 989         struct au0828_dev *dev = from_timer(dev, t, vbi_timeout);
 990         struct au0828_dmaqueue *dma_q = &dev->vbiq;
 991         struct au0828_buffer *buf;
 992         unsigned char *vbi_data;
 993         unsigned long flags = 0;
 994
 995         spin_lock_irqsave(&dev->slock, flags);
 996
 997         buf = dev->isoc_ctl.vbi_buf;
 998         if (buf != NULL) {
 999                 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
1000                 memset(vbi_data, 0x00, buf->length);
1001                 buffer_filled(dev, dma_q, buf);
1002         }
1003         vbi_get_next_buf(dma_q, &buf);
1004
1005         if (dev->vbi_timeout_running == 1)
1006                 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1007         spin_unlock_irqrestore(&dev->slock, flags);
1008 }
1009
1010 static int au0828_v4l2_open(struct file *filp)
1011 {
1012         struct au0828_dev *dev = video_drvdata(filp);
1013         int ret;
1014
1015         dprintk(1,
1016                 "%s called std_set %d dev_state %ld stream users %d users %d\n",
1017                 __func__, dev->std_set_in_tuner_core, dev->dev_state,
1018                 dev->streaming_users, dev->users);
1019
1020         if (mutex_lock_interruptible(&dev->lock))
1021                 return -ERESTARTSYS;
1022
1023         ret = v4l2_fh_open(filp);
1024         if (ret) {
1025                 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n",
1026                                 __func__, ret);
1027                 mutex_unlock(&dev->lock);
1028                 return ret;
1029         }
1030
1031         if (dev->users == 0) {
1032                 au0828_analog_stream_enable(dev);
1033                 au0828_analog_stream_reset(dev);
1034                 dev->stream_state = STREAM_OFF;
1035                 set_bit(DEV_INITIALIZED, &dev->dev_state);
1036         }
1037         dev->users++;
1038         mutex_unlock(&dev->lock);
1039         return ret;
1040 }
1041
1042 static int au0828_v4l2_close(struct file *filp)
1043 {
1044         int ret;
1045         struct au0828_dev *dev = video_drvdata(filp);
1046         struct video_device *vdev = video_devdata(filp);
1047
1048         dprintk(1,
1049                 "%s called std_set %d dev_state %ld stream users %d users %d\n",
1050                 __func__, dev->std_set_in_tuner_core, dev->dev_state,
1051                 dev->streaming_users, dev->users);
1052
1053         mutex_lock(&dev->lock);
1054         if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) {
1055                 /* Cancel timeout thread in case they didn't call streamoff */
1056                 dev->vid_timeout_running = 0;
1057                 del_timer_sync(&dev->vid_timeout);
1058         } else if (vdev->vfl_type == VFL_TYPE_VBI &&
1059                         dev->vbi_timeout_running) {
1060                 /* Cancel timeout thread in case they didn't call streamoff */
1061                 dev->vbi_timeout_running = 0;
1062                 del_timer_sync(&dev->vbi_timeout);
1063         }
1064
1065         if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
1066                 goto end;
1067
1068         if (dev->users == 1) {
1069                 /*
1070                  * Avoid putting tuner in sleep if DVB or ALSA are
1071                  * streaming.
1072                  *
1073                  * On most USB devices  like au0828 the tuner can
1074                  * be safely put in sleep state here if ALSA isn't
1075                  * streaming. Exceptions are some very old USB tuner
1076                  * models such as em28xx-based WinTV USB2 which have
1077                  * a separate audio output jack. The devices that have
1078                  * a separate audio output jack have analog tuners,
1079                  * like Philips FM1236. Those devices are always on,
1080                  * so the s_power callback are silently ignored.
1081                  * So, the current logic here does the following:
1082                  * Disable (put tuner to sleep) when
1083                  * - ALSA and DVB aren't streaming.
1084                  * - the last V4L2 file handler is closed.
1085                  *
1086                  * FIXME:
1087                  *
1088                  * Additionally, this logic could be improved to
1089                  * disable the media source if the above conditions
1090                  * are met and if the device:
1091                  * - doesn't have a separate audio out plug (or
1092                  * - doesn't use a silicon tuner like xc2028/3028/4000/5000).
1093                  *
1094                  * Once this additional logic is in place, a callback
1095                  * is needed to enable the media source and power on
1096                  * the tuner, for radio to work.
1097                 */
1098                 ret = v4l_enable_media_source(vdev);
1099                 if (ret == 0)
1100                         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner,
1101                                              standby);
1102                 dev->std_set_in_tuner_core = 0;
1103
1104                 /* When close the device, set the usb intf0 into alt0 to free
1105                    USB bandwidth */
1106                 ret = usb_set_interface(dev->usbdev, 0, 0);
1107                 if (ret < 0)
1108                         pr_info("Au0828 can't set alternate to 0!\n");
1109         }
1110 end:
1111         _vb2_fop_release(filp, NULL);
1112         dev->users--;
1113         mutex_unlock(&dev->lock);
1114         return 0;
1115 }
1116
1117 /* Must be called with dev->lock held */
1118 static void au0828_init_tuner(struct au0828_dev *dev)
1119 {
1120         struct v4l2_frequency f = {
1121                 .frequency = dev->ctrl_freq,
1122                 .type = V4L2_TUNER_ANALOG_TV,
1123         };
1124
1125         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1126                 dev->std_set_in_tuner_core, dev->dev_state);
1127
1128         if (dev->std_set_in_tuner_core)
1129                 return;
1130         dev->std_set_in_tuner_core = 1;
1131         i2c_gate_ctrl(dev, 1);
1132         /* If we've never sent the standard in tuner core, do so now.
1133            We don't do this at device probe because we don't want to
1134            incur the cost of a firmware load */
1135         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std);
1136         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
1137         i2c_gate_ctrl(dev, 0);
1138 }
1139
1140 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
1141                              struct v4l2_format *format)
1142 {
1143         int ret;
1144         int width = format->fmt.pix.width;
1145         int height = format->fmt.pix.height;
1146
1147         /* If they are demanding a format other than the one we support,
1148            bail out (tvtime asks for UYVY and then retries with YUYV) */
1149         if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)
1150                 return -EINVAL;
1151
1152         /* format->fmt.pix.width only support 720 and height 480 */
1153         if (width != 720)
1154                 width = 720;
1155         if (height != 480)
1156                 height = 480;
1157
1158         format->fmt.pix.width = width;
1159         format->fmt.pix.height = height;
1160         format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1161         format->fmt.pix.bytesperline = width * 2;
1162         format->fmt.pix.sizeimage = width * height * 2;
1163         format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1164         format->fmt.pix.field = V4L2_FIELD_INTERLACED;
1165         format->fmt.pix.priv = 0;
1166
1167         if (cmd == VIDIOC_TRY_FMT)
1168                 return 0;
1169
1170         /* maybe set new image format, driver current only support 720*480 */
1171         dev->width = width;
1172         dev->height = height;
1173         dev->frame_size = width * height * 2;
1174         dev->field_size = width * height;
1175         dev->bytesperline = width * 2;
1176
1177         if (dev->stream_state == STREAM_ON) {
1178                 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
1179                 ret = au0828_stream_interrupt(dev);
1180                 if (ret != 0) {
1181                         dprintk(1, "error interrupting video stream!\n");
1182                         return ret;
1183                 }
1184         }
1185
1186         au0828_analog_stream_enable(dev);
1187
1188         return 0;
1189 }
1190
1191 static int vidioc_querycap(struct file *file, void  *priv,
1192                            struct v4l2_capability *cap)
1193 {
1194         struct video_device *vdev = video_devdata(file);
1195         struct au0828_dev *dev = video_drvdata(file);
1196
1197         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1198                 dev->std_set_in_tuner_core, dev->dev_state);
1199
1200         strscpy(cap->driver, "au0828", sizeof(cap->driver));
1201         strscpy(cap->card, dev->board.name, sizeof(cap->card));
1202         usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info));
1203
1204         /* set the device capabilities */
1205         cap->device_caps = V4L2_CAP_AUDIO |
1206                 V4L2_CAP_READWRITE |
1207                 V4L2_CAP_STREAMING |
1208                 V4L2_CAP_TUNER;
1209         if (vdev->vfl_type == VFL_TYPE_GRABBER)
1210                 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
1211         else
1212                 cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
1213         cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS |
1214                 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE;
1215         return 0;
1216 }
1217
1218 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1219                                         struct v4l2_fmtdesc *f)
1220 {
1221         if (f->index)
1222                 return -EINVAL;
1223
1224         dprintk(1, "%s called\n", __func__);
1225
1226         f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1227         strscpy(f->description, "Packed YUV2", sizeof(f->description));
1228
1229         f->flags = 0;
1230         f->pixelformat = V4L2_PIX_FMT_UYVY;
1231
1232         return 0;
1233 }
1234
1235 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1236                                         struct v4l2_format *f)
1237 {
1238         struct au0828_dev *dev = video_drvdata(file);
1239
1240         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1241                 dev->std_set_in_tuner_core, dev->dev_state);
1242
1243         f->fmt.pix.width = dev->width;
1244         f->fmt.pix.height = dev->height;
1245         f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1246         f->fmt.pix.bytesperline = dev->bytesperline;
1247         f->fmt.pix.sizeimage = dev->frame_size;
1248         f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
1249         f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1250         f->fmt.pix.priv = 0;
1251         return 0;
1252 }
1253
1254 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1255                                   struct v4l2_format *f)
1256 {
1257         struct au0828_dev *dev = video_drvdata(file);
1258
1259         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1260                 dev->std_set_in_tuner_core, dev->dev_state);
1261
1262         return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
1263 }
1264
1265 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1266                                 struct v4l2_format *f)
1267 {
1268         struct au0828_dev *dev = video_drvdata(file);
1269         int rc;
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         rc = check_dev(dev);
1275         if (rc < 0)
1276                 return rc;
1277
1278         if (vb2_is_busy(&dev->vb_vidq)) {
1279                 pr_info("%s queue busy\n", __func__);
1280                 rc = -EBUSY;
1281                 goto out;
1282         }
1283
1284         rc = au0828_set_format(dev, VIDIOC_S_FMT, f);
1285 out:
1286         return rc;
1287 }
1288
1289 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
1290 {
1291         struct au0828_dev *dev = video_drvdata(file);
1292
1293         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1294                 dev->std_set_in_tuner_core, dev->dev_state);
1295
1296         if (norm == dev->std)
1297                 return 0;
1298
1299         if (dev->streaming_users > 0)
1300                 return -EBUSY;
1301
1302         dev->std = norm;
1303
1304         au0828_init_tuner(dev);
1305
1306         i2c_gate_ctrl(dev, 1);
1307
1308         /*
1309          * FIXME: when we support something other than 60Hz standards,
1310          * we are going to have to make the au0828 bridge adjust the size
1311          * of its capture buffer, which is currently hardcoded at 720x480
1312          */
1313
1314         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm);
1315
1316         i2c_gate_ctrl(dev, 0);
1317
1318         return 0;
1319 }
1320
1321 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
1322 {
1323         struct au0828_dev *dev = video_drvdata(file);
1324
1325         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1326                 dev->std_set_in_tuner_core, dev->dev_state);
1327
1328         *norm = dev->std;
1329         return 0;
1330 }
1331
1332 static int vidioc_enum_input(struct file *file, void *priv,
1333                                 struct v4l2_input *input)
1334 {
1335         struct au0828_dev *dev = video_drvdata(file);
1336         unsigned int tmp;
1337
1338         static const char *inames[] = {
1339                 [AU0828_VMUX_UNDEFINED] = "Undefined",
1340                 [AU0828_VMUX_COMPOSITE] = "Composite",
1341                 [AU0828_VMUX_SVIDEO] = "S-Video",
1342                 [AU0828_VMUX_CABLE] = "Cable TV",
1343                 [AU0828_VMUX_TELEVISION] = "Television",
1344                 [AU0828_VMUX_DVB] = "DVB",
1345         };
1346
1347         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1348                 dev->std_set_in_tuner_core, dev->dev_state);
1349
1350         tmp = input->index;
1351
1352         if (tmp >= AU0828_MAX_INPUT)
1353                 return -EINVAL;
1354         if (AUVI_INPUT(tmp).type == 0)
1355                 return -EINVAL;
1356
1357         input->index = tmp;
1358         strscpy(input->name, inames[AUVI_INPUT(tmp).type], sizeof(input->name));
1359         if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
1360             (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) {
1361                 input->type |= V4L2_INPUT_TYPE_TUNER;
1362                 input->audioset = 1;
1363         } else {
1364                 input->type |= V4L2_INPUT_TYPE_CAMERA;
1365                 input->audioset = 2;
1366         }
1367
1368         input->std = dev->vdev.tvnorms;
1369
1370         return 0;
1371 }
1372
1373 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1374 {
1375         struct au0828_dev *dev = video_drvdata(file);
1376
1377         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1378                 dev->std_set_in_tuner_core, dev->dev_state);
1379
1380         *i = dev->ctrl_input;
1381         return 0;
1382 }
1383
1384 static void au0828_s_input(struct au0828_dev *dev, int index)
1385 {
1386         int i;
1387
1388         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1389                 dev->std_set_in_tuner_core, dev->dev_state);
1390
1391         switch (AUVI_INPUT(index).type) {
1392         case AU0828_VMUX_SVIDEO:
1393                 dev->input_type = AU0828_VMUX_SVIDEO;
1394                 dev->ctrl_ainput = 1;
1395                 break;
1396         case AU0828_VMUX_COMPOSITE:
1397                 dev->input_type = AU0828_VMUX_COMPOSITE;
1398                 dev->ctrl_ainput = 1;
1399                 break;
1400         case AU0828_VMUX_TELEVISION:
1401                 dev->input_type = AU0828_VMUX_TELEVISION;
1402                 dev->ctrl_ainput = 0;
1403                 break;
1404         default:
1405                 dprintk(1, "unknown input type set [%d]\n",
1406                         AUVI_INPUT(index).type);
1407                 return;
1408         }
1409
1410         dev->ctrl_input = index;
1411
1412         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
1413                         AUVI_INPUT(index).vmux, 0, 0);
1414
1415         for (i = 0; i < AU0828_MAX_INPUT; i++) {
1416                 int enable = 0;
1417                 if (AUVI_INPUT(i).audio_setup == NULL)
1418                         continue;
1419
1420                 if (i == index)
1421                         enable = 1;
1422                 else
1423                         enable = 0;
1424                 if (enable) {
1425                         (AUVI_INPUT(i).audio_setup)(dev, enable);
1426                 } else {
1427                         /* Make sure we leave it turned on if some
1428                            other input is routed to this callback */
1429                         if ((AUVI_INPUT(i).audio_setup) !=
1430                             ((AUVI_INPUT(index).audio_setup))) {
1431                                 (AUVI_INPUT(i).audio_setup)(dev, enable);
1432                         }
1433                 }
1434         }
1435
1436         v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
1437                         AUVI_INPUT(index).amux, 0, 0);
1438 }
1439
1440 static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
1441 {
1442         struct au0828_dev *dev = video_drvdata(file);
1443         struct video_device *vfd = video_devdata(file);
1444
1445         dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
1446                 index);
1447         if (index >= AU0828_MAX_INPUT)
1448                 return -EINVAL;
1449         if (AUVI_INPUT(index).type == 0)
1450                 return -EINVAL;
1451
1452         if (dev->ctrl_input == index)
1453                 return 0;
1454
1455         au0828_s_input(dev, index);
1456
1457         /*
1458          * Input has been changed. Disable the media source
1459          * associated with the old input and enable source
1460          * for the newly set input
1461          */
1462         v4l_disable_media_source(vfd);
1463         return v4l_enable_media_source(vfd);
1464 }
1465
1466 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a)
1467 {
1468         if (a->index > 1)
1469                 return -EINVAL;
1470
1471         dprintk(1, "%s called\n", __func__);
1472
1473         if (a->index == 0)
1474                 strscpy(a->name, "Television", sizeof(a->name));
1475         else
1476                 strscpy(a->name, "Line in", sizeof(a->name));
1477
1478         a->capability = V4L2_AUDCAP_STEREO;
1479         return 0;
1480 }
1481
1482 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1483 {
1484         struct au0828_dev *dev = video_drvdata(file);
1485
1486         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1487                 dev->std_set_in_tuner_core, dev->dev_state);
1488
1489         a->index = dev->ctrl_ainput;
1490         if (a->index == 0)
1491                 strscpy(a->name, "Television", sizeof(a->name));
1492         else
1493                 strscpy(a->name, "Line in", sizeof(a->name));
1494
1495         a->capability = V4L2_AUDCAP_STEREO;
1496         return 0;
1497 }
1498
1499 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)
1500 {
1501         struct au0828_dev *dev = video_drvdata(file);
1502
1503         if (a->index != dev->ctrl_ainput)
1504                 return -EINVAL;
1505
1506         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1507                 dev->std_set_in_tuner_core, dev->dev_state);
1508         return 0;
1509 }
1510
1511 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1512 {
1513         struct au0828_dev *dev = video_drvdata(file);
1514         struct video_device *vfd = video_devdata(file);
1515         int ret;
1516
1517         if (t->index != 0)
1518                 return -EINVAL;
1519
1520         ret = v4l_enable_media_source(vfd);
1521         if (ret)
1522                 return ret;
1523
1524         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1525                 dev->std_set_in_tuner_core, dev->dev_state);
1526
1527         strscpy(t->name, "Auvitek tuner", sizeof(t->name));
1528
1529         au0828_init_tuner(dev);
1530         i2c_gate_ctrl(dev, 1);
1531         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1532         i2c_gate_ctrl(dev, 0);
1533         return 0;
1534 }
1535
1536 static int vidioc_s_tuner(struct file *file, void *priv,
1537                                 const struct v4l2_tuner *t)
1538 {
1539         struct au0828_dev *dev = video_drvdata(file);
1540
1541         if (t->index != 0)
1542                 return -EINVAL;
1543
1544         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1545                 dev->std_set_in_tuner_core, dev->dev_state);
1546
1547         au0828_init_tuner(dev);
1548         i2c_gate_ctrl(dev, 1);
1549         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1550         i2c_gate_ctrl(dev, 0);
1551
1552         dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
1553                 t->afc);
1554
1555         return 0;
1556
1557 }
1558
1559 static int vidioc_g_frequency(struct file *file, void *priv,
1560                                 struct v4l2_frequency *freq)
1561 {
1562         struct au0828_dev *dev = video_drvdata(file);
1563
1564         if (freq->tuner != 0)
1565                 return -EINVAL;
1566         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1567                 dev->std_set_in_tuner_core, dev->dev_state);
1568         freq->frequency = dev->ctrl_freq;
1569         return 0;
1570 }
1571
1572 static int vidioc_s_frequency(struct file *file, void *priv,
1573                                 const struct v4l2_frequency *freq)
1574 {
1575         struct au0828_dev *dev = video_drvdata(file);
1576         struct v4l2_frequency new_freq = *freq;
1577
1578         if (freq->tuner != 0)
1579                 return -EINVAL;
1580
1581         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1582                 dev->std_set_in_tuner_core, dev->dev_state);
1583
1584         au0828_init_tuner(dev);
1585         i2c_gate_ctrl(dev, 1);
1586
1587         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
1588         /* Get the actual set (and possibly clamped) frequency */
1589         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
1590         dev->ctrl_freq = new_freq.frequency;
1591
1592         i2c_gate_ctrl(dev, 0);
1593
1594         au0828_analog_stream_reset(dev);
1595
1596         return 0;
1597 }
1598
1599
1600 /* RAW VBI ioctls */
1601
1602 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1603                                 struct v4l2_format *format)
1604 {
1605         struct au0828_dev *dev = video_drvdata(file);
1606
1607         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1608                 dev->std_set_in_tuner_core, dev->dev_state);
1609
1610         format->fmt.vbi.samples_per_line = dev->vbi_width;
1611         format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1612         format->fmt.vbi.offset = 0;
1613         format->fmt.vbi.flags = 0;
1614         format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
1615
1616         format->fmt.vbi.count[0] = dev->vbi_height;
1617         format->fmt.vbi.count[1] = dev->vbi_height;
1618         format->fmt.vbi.start[0] = 21;
1619         format->fmt.vbi.start[1] = 284;
1620         memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
1621
1622         return 0;
1623 }
1624
1625 static int vidioc_g_pixelaspect(struct file *file, void *priv,
1626                                 int type, struct v4l2_fract *f)
1627 {
1628         struct au0828_dev *dev = video_drvdata(file);
1629
1630         if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1631                 return -EINVAL;
1632
1633         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1634                 dev->std_set_in_tuner_core, dev->dev_state);
1635
1636         f->numerator = 54;
1637         f->denominator = 59;
1638
1639         return 0;
1640 }
1641
1642 static int vidioc_g_selection(struct file *file, void *priv,
1643                               struct v4l2_selection *s)
1644 {
1645         struct au0828_dev *dev = video_drvdata(file);
1646
1647         if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1648                 return -EINVAL;
1649
1650         switch (s->target) {
1651         case V4L2_SEL_TGT_CROP_BOUNDS:
1652         case V4L2_SEL_TGT_CROP_DEFAULT:
1653                 s->r.left = 0;
1654                 s->r.top = 0;
1655                 s->r.width = dev->width;
1656                 s->r.height = dev->height;
1657                 break;
1658         default:
1659                 return -EINVAL;
1660         }
1661         return 0;
1662 }
1663
1664 #ifdef CONFIG_VIDEO_ADV_DEBUG
1665 static int vidioc_g_register(struct file *file, void *priv,
1666                              struct v4l2_dbg_register *reg)
1667 {
1668         struct au0828_dev *dev = video_drvdata(file);
1669
1670         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1671                 dev->std_set_in_tuner_core, dev->dev_state);
1672
1673         reg->val = au0828_read(dev, reg->reg);
1674         reg->size = 1;
1675         return 0;
1676 }
1677
1678 static int vidioc_s_register(struct file *file, void *priv,
1679                              const struct v4l2_dbg_register *reg)
1680 {
1681         struct au0828_dev *dev = video_drvdata(file);
1682
1683         dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
1684                 dev->std_set_in_tuner_core, dev->dev_state);
1685
1686         return au0828_writereg(dev, reg->reg, reg->val);
1687 }
1688 #endif
1689
1690 static int vidioc_log_status(struct file *file, void *fh)
1691 {
1692         struct video_device *vdev = video_devdata(file);
1693
1694         dprintk(1, "%s called\n", __func__);
1695
1696         v4l2_ctrl_log_status(file, fh);
1697         v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status);
1698         return 0;
1699 }
1700
1701 void au0828_v4l2_suspend(struct au0828_dev *dev)
1702 {
1703         struct urb *urb;
1704         int i;
1705
1706         pr_info("stopping V4L2\n");
1707
1708         if (dev->stream_state == STREAM_ON) {
1709                 pr_info("stopping V4L2 active URBs\n");
1710                 au0828_analog_stream_disable(dev);
1711                 /* stop urbs */
1712                 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1713                         urb = dev->isoc_ctl.urb[i];
1714                         if (urb) {
1715                                 if (!irqs_disabled())
1716                                         usb_kill_urb(urb);
1717                                 else
1718                                         usb_unlink_urb(urb);
1719                         }
1720                 }
1721         }
1722
1723         if (dev->vid_timeout_running)
1724                 del_timer_sync(&dev->vid_timeout);
1725         if (dev->vbi_timeout_running)
1726                 del_timer_sync(&dev->vbi_timeout);
1727 }
1728
1729 void au0828_v4l2_resume(struct au0828_dev *dev)
1730 {
1731         int i, rc;
1732
1733         pr_info("restarting V4L2\n");
1734
1735         if (dev->stream_state == STREAM_ON) {
1736                 au0828_stream_interrupt(dev);
1737                 au0828_init_tuner(dev);
1738         }
1739
1740         if (dev->vid_timeout_running)
1741                 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
1742         if (dev->vbi_timeout_running)
1743                 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1744
1745         /* If we were doing ac97 instead of i2s, it would go here...*/
1746         au0828_i2s_init(dev);
1747
1748         au0828_analog_stream_enable(dev);
1749
1750         if (!(dev->stream_state == STREAM_ON)) {
1751                 au0828_analog_stream_reset(dev);
1752                 /* submit urbs */
1753                 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1754                         rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
1755                         if (rc) {
1756                                 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
1757                                                i, rc);
1758                                 au0828_uninit_isoc(dev);
1759                         }
1760                 }
1761         }
1762 }
1763
1764 static const struct v4l2_file_operations au0828_v4l_fops = {
1765         .owner      = THIS_MODULE,
1766         .open       = au0828_v4l2_open,
1767         .release    = au0828_v4l2_close,
1768         .read       = vb2_fop_read,
1769         .poll       = vb2_fop_poll,
1770         .mmap       = vb2_fop_mmap,
1771         .unlocked_ioctl = video_ioctl2,
1772 };
1773
1774 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1775         .vidioc_querycap            = vidioc_querycap,
1776         .vidioc_enum_fmt_vid_cap    = vidioc_enum_fmt_vid_cap,
1777         .vidioc_g_fmt_vid_cap       = vidioc_g_fmt_vid_cap,
1778         .vidioc_try_fmt_vid_cap     = vidioc_try_fmt_vid_cap,
1779         .vidioc_s_fmt_vid_cap       = vidioc_s_fmt_vid_cap,
1780         .vidioc_g_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
1781         .vidioc_try_fmt_vbi_cap     = vidioc_g_fmt_vbi_cap,
1782         .vidioc_s_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
1783         .vidioc_enumaudio           = vidioc_enumaudio,
1784         .vidioc_g_audio             = vidioc_g_audio,
1785         .vidioc_s_audio             = vidioc_s_audio,
1786         .vidioc_g_pixelaspect       = vidioc_g_pixelaspect,
1787         .vidioc_g_selection         = vidioc_g_selection,
1788
1789         .vidioc_reqbufs             = vb2_ioctl_reqbufs,
1790         .vidioc_create_bufs         = vb2_ioctl_create_bufs,
1791         .vidioc_prepare_buf         = vb2_ioctl_prepare_buf,
1792         .vidioc_querybuf            = vb2_ioctl_querybuf,
1793         .vidioc_qbuf                = vb2_ioctl_qbuf,
1794         .vidioc_dqbuf               = vb2_ioctl_dqbuf,
1795         .vidioc_expbuf               = vb2_ioctl_expbuf,
1796
1797         .vidioc_s_std               = vidioc_s_std,
1798         .vidioc_g_std               = vidioc_g_std,
1799         .vidioc_enum_input          = vidioc_enum_input,
1800         .vidioc_g_input             = vidioc_g_input,
1801         .vidioc_s_input             = vidioc_s_input,
1802
1803         .vidioc_streamon            = vb2_ioctl_streamon,
1804         .vidioc_streamoff           = vb2_ioctl_streamoff,
1805
1806         .vidioc_g_tuner             = vidioc_g_tuner,
1807         .vidioc_s_tuner             = vidioc_s_tuner,
1808         .vidioc_g_frequency         = vidioc_g_frequency,
1809         .vidioc_s_frequency         = vidioc_s_frequency,
1810 #ifdef CONFIG_VIDEO_ADV_DEBUG
1811         .vidioc_g_register          = vidioc_g_register,
1812         .vidioc_s_register          = vidioc_s_register,
1813 #endif
1814         .vidioc_log_status          = vidioc_log_status,
1815         .vidioc_subscribe_event     = v4l2_ctrl_subscribe_event,
1816         .vidioc_unsubscribe_event   = v4l2_event_unsubscribe,
1817 };
1818
1819 static const struct video_device au0828_video_template = {
1820         .fops                       = &au0828_v4l_fops,
1821         .release                    = video_device_release_empty,
1822         .ioctl_ops                  = &video_ioctl_ops,
1823         .tvnorms                    = V4L2_STD_NTSC_M | V4L2_STD_PAL_M,
1824 };
1825
1826 static int au0828_vb2_setup(struct au0828_dev *dev)
1827 {
1828         int rc;
1829         struct vb2_queue *q;
1830
1831         /* Setup Videobuf2 for Video capture */
1832         q = &dev->vb_vidq;
1833         q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1834         q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1835         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1836         q->drv_priv = dev;
1837         q->buf_struct_size = sizeof(struct au0828_buffer);
1838         q->ops = &au0828_video_qops;
1839         q->mem_ops = &vb2_vmalloc_memops;
1840
1841         rc = vb2_queue_init(q);
1842         if (rc < 0)
1843                 return rc;
1844
1845         /* Setup Videobuf2 for VBI capture */
1846         q = &dev->vb_vbiq;
1847         q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1848         q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1849         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1850         q->drv_priv = dev;
1851         q->buf_struct_size = sizeof(struct au0828_buffer);
1852         q->ops = &au0828_vbi_qops;
1853         q->mem_ops = &vb2_vmalloc_memops;
1854
1855         rc = vb2_queue_init(q);
1856         if (rc < 0)
1857                 return rc;
1858
1859         return 0;
1860 }
1861
1862 static void au0828_analog_create_entities(struct au0828_dev *dev)
1863 {
1864 #if defined(CONFIG_MEDIA_CONTROLLER)
1865         static const char * const inames[] = {
1866                 [AU0828_VMUX_COMPOSITE] = "Composite",
1867                 [AU0828_VMUX_SVIDEO] = "S-Video",
1868                 [AU0828_VMUX_CABLE] = "Cable TV",
1869                 [AU0828_VMUX_TELEVISION] = "Television",
1870                 [AU0828_VMUX_DVB] = "DVB",
1871         };
1872         int ret, i;
1873
1874         /* Initialize Video and VBI pads */
1875         dev->video_pad.flags = MEDIA_PAD_FL_SINK;
1876         ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad);
1877         if (ret < 0)
1878                 pr_err("failed to initialize video media entity!\n");
1879
1880         dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
1881         ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad);
1882         if (ret < 0)
1883                 pr_err("failed to initialize vbi media entity!\n");
1884
1885         /* Create entities for each input connector */
1886         for (i = 0; i < AU0828_MAX_INPUT; i++) {
1887                 struct media_entity *ent = &dev->input_ent[i];
1888
1889                 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
1890                         break;
1891
1892                 ent->name = inames[AUVI_INPUT(i).type];
1893                 ent->flags = MEDIA_ENT_FL_CONNECTOR;
1894                 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
1895
1896                 switch (AUVI_INPUT(i).type) {
1897                 case AU0828_VMUX_COMPOSITE:
1898                         ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
1899                         break;
1900                 case AU0828_VMUX_SVIDEO:
1901                         ent->function = MEDIA_ENT_F_CONN_SVIDEO;
1902                         break;
1903                 case AU0828_VMUX_CABLE:
1904                 case AU0828_VMUX_TELEVISION:
1905                 case AU0828_VMUX_DVB:
1906                 default: /* Just to shut up a warning */
1907                         ent->function = MEDIA_ENT_F_CONN_RF;
1908                         break;
1909                 }
1910
1911                 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
1912                 if (ret < 0)
1913                         pr_err("failed to initialize input pad[%d]!\n", i);
1914
1915                 ret = media_device_register_entity(dev->media_dev, ent);
1916                 if (ret < 0)
1917                         pr_err("failed to register input entity %d!\n", i);
1918         }
1919 #endif
1920 }
1921
1922 /**************************************************************************/
1923
1924 int au0828_analog_register(struct au0828_dev *dev,
1925                            struct usb_interface *interface)
1926 {
1927         int retval = -ENOMEM;
1928         struct usb_host_interface *iface_desc;
1929         struct usb_endpoint_descriptor *endpoint;
1930         int i, ret;
1931
1932         dprintk(1, "au0828_analog_register called for intf#%d!\n",
1933                 interface->cur_altsetting->desc.bInterfaceNumber);
1934
1935         /* No analog TV */
1936         if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
1937                 return 0;
1938
1939         /* set au0828 usb interface0 to as5 */
1940         retval = usb_set_interface(dev->usbdev,
1941                         interface->cur_altsetting->desc.bInterfaceNumber, 5);
1942         if (retval != 0) {
1943                 pr_info("Failure setting usb interface0 to as5\n");
1944                 return retval;
1945         }
1946
1947         /* Figure out which endpoint has the isoc interface */
1948         iface_desc = interface->cur_altsetting;
1949         for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
1950                 endpoint = &iface_desc->endpoint[i].desc;
1951                 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1952                      == USB_DIR_IN) &&
1953                     ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1954                      == USB_ENDPOINT_XFER_ISOC)) {
1955
1956                         /* we find our isoc in endpoint */
1957                         u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
1958                         dev->max_pkt_size = (tmp & 0x07ff) *
1959                                 (((tmp & 0x1800) >> 11) + 1);
1960                         dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
1961                         dprintk(1,
1962                                 "Found isoc endpoint 0x%02x, max size = %d\n",
1963                                 dev->isoc_in_endpointaddr, dev->max_pkt_size);
1964                 }
1965         }
1966         if (!(dev->isoc_in_endpointaddr)) {
1967                 pr_info("Could not locate isoc endpoint\n");
1968                 return -ENODEV;
1969         }
1970
1971         init_waitqueue_head(&dev->open);
1972         spin_lock_init(&dev->slock);
1973
1974         /* init video dma queues */
1975         INIT_LIST_HEAD(&dev->vidq.active);
1976         INIT_LIST_HEAD(&dev->vbiq.active);
1977
1978         timer_setup(&dev->vid_timeout, au0828_vid_buffer_timeout, 0);
1979         timer_setup(&dev->vbi_timeout, au0828_vbi_buffer_timeout, 0);
1980
1981         dev->width = NTSC_STD_W;
1982         dev->height = NTSC_STD_H;
1983         dev->field_size = dev->width * dev->height;
1984         dev->frame_size = dev->field_size << 1;
1985         dev->bytesperline = dev->width << 1;
1986         dev->vbi_width = 720;
1987         dev->vbi_height = 1;
1988         dev->ctrl_ainput = 0;
1989         dev->ctrl_freq = 960;
1990         dev->std = V4L2_STD_NTSC_M;
1991         /* Default input is TV Tuner */
1992         au0828_s_input(dev, 0);
1993
1994         mutex_init(&dev->vb_queue_lock);
1995         mutex_init(&dev->vb_vbi_queue_lock);
1996
1997         /* Fill the video capture device struct */
1998         dev->vdev = au0828_video_template;
1999         dev->vdev.v4l2_dev = &dev->v4l2_dev;
2000         dev->vdev.lock = &dev->lock;
2001         dev->vdev.queue = &dev->vb_vidq;
2002         dev->vdev.queue->lock = &dev->vb_queue_lock;
2003         strscpy(dev->vdev.name, "au0828a video", sizeof(dev->vdev.name));
2004
2005         /* Setup the VBI device */
2006         dev->vbi_dev = au0828_video_template;
2007         dev->vbi_dev.v4l2_dev = &dev->v4l2_dev;
2008         dev->vbi_dev.lock = &dev->lock;
2009         dev->vbi_dev.queue = &dev->vb_vbiq;
2010         dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock;
2011         strscpy(dev->vbi_dev.name, "au0828a vbi", sizeof(dev->vbi_dev.name));
2012
2013         /* Init entities at the Media Controller */
2014         au0828_analog_create_entities(dev);
2015
2016         /* initialize videobuf2 stuff */
2017         retval = au0828_vb2_setup(dev);
2018         if (retval != 0) {
2019                 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n",
2020                         retval);
2021                 return -ENODEV;
2022         }
2023
2024         /* Register the v4l2 device */
2025         video_set_drvdata(&dev->vdev, dev);
2026         retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1);
2027         if (retval != 0) {
2028                 dprintk(1, "unable to register video device (error = %d).\n",
2029                         retval);
2030                 ret = -ENODEV;
2031                 goto err_reg_vdev;
2032         }
2033
2034         /* Register the vbi device */
2035         video_set_drvdata(&dev->vbi_dev, dev);
2036         retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1);
2037         if (retval != 0) {
2038                 dprintk(1, "unable to register vbi device (error = %d).\n",
2039                         retval);
2040                 ret = -ENODEV;
2041                 goto err_reg_vbi_dev;
2042         }
2043
2044 #ifdef CONFIG_MEDIA_CONTROLLER
2045         retval = v4l2_mc_create_media_graph(dev->media_dev);
2046         if (retval) {
2047                 pr_err("%s() au0282_dev_register failed to create graph\n",
2048                         __func__);
2049                 ret = -ENODEV;
2050                 goto err_reg_vbi_dev;
2051         }
2052 #endif
2053
2054         dprintk(1, "%s completed!\n", __func__);
2055
2056         return 0;
2057
2058 err_reg_vbi_dev:
2059         video_unregister_device(&dev->vdev);
2060 err_reg_vdev:
2061         vb2_queue_release(&dev->vb_vidq);
2062         vb2_queue_release(&dev->vb_vbiq);
2063         return ret;
2064 }
2065