drivers/media/usb/cx231xx/cx231xx-video.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3    cx231xx-video.c - driver for Conexant Cx23100/101/102
   4                      USB video capture devices
   5
   6    Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
   7         Based on em28xx driver
   8         Based on cx23885 driver
   9         Based on cx88 driver
  10
  11  */
  12
  13 #include "cx231xx.h"
  14 #include <linux/init.h>
  15 #include <linux/list.h>
  16 #include <linux/module.h>
  17 #include <linux/kernel.h>
  18 #include <linux/bitmap.h>
  19 #include <linux/i2c.h>
  20 #include <linux/mm.h>
  21 #include <linux/mutex.h>
  22 #include <linux/slab.h>
  23
  24 #include <media/v4l2-common.h>
  25 #include <media/v4l2-ioctl.h>
  26 #include <media/v4l2-event.h>
  27 #include <media/drv-intf/msp3400.h>
  28 #include <media/tuner.h>
  29
  30 #include <media/dvb_frontend.h>
  31
  32 #include "cx231xx-vbi.h"
  33
  34 #define CX231XX_VERSION "0.0.3"
  35
  36 #define DRIVER_AUTHOR   "Srinivasa Deevi <[email protected]>"
  37 #define DRIVER_DESC     "Conexant cx231xx based USB video device driver"
  38
  39 #define cx231xx_videodbg(fmt, arg...) do {\
  40         if (video_debug) \
  41                 printk(KERN_INFO "%s %s :"fmt, \
  42                          dev->name, __func__ , ##arg); } while (0)
  43
  44 static unsigned int isoc_debug;
  45 module_param(isoc_debug, int, 0644);
  46 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
  47
  48 #define cx231xx_isocdbg(fmt, arg...) \
  49 do {\
  50         if (isoc_debug) { \
  51                 printk(KERN_INFO "%s %s :"fmt, \
  52                          dev->name, __func__ , ##arg); \
  53         } \
  54   } while (0)
  55
  56 MODULE_AUTHOR(DRIVER_AUTHOR);
  57 MODULE_DESCRIPTION(DRIVER_DESC);
  58 MODULE_LICENSE("GPL");
  59 MODULE_VERSION(CX231XX_VERSION);
  60
  61 static unsigned int card[]     = {[0 ... (CX231XX_MAXBOARDS - 1)] = -1U };
  62 static unsigned int video_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = -1U };
  63 static unsigned int vbi_nr[]   = {[0 ... (CX231XX_MAXBOARDS - 1)] = -1U };
  64 static unsigned int radio_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = -1U };
  65
  66 module_param_array(card, int, NULL, 0444);
  67 module_param_array(video_nr, int, NULL, 0444);
  68 module_param_array(vbi_nr, int, NULL, 0444);
  69 module_param_array(radio_nr, int, NULL, 0444);
  70
  71 MODULE_PARM_DESC(card, "card type");
  72 MODULE_PARM_DESC(video_nr, "video device numbers");
  73 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
  74 MODULE_PARM_DESC(radio_nr, "radio device numbers");
  75
  76 static unsigned int video_debug;
  77 module_param(video_debug, int, 0644);
  78 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
  79
  80 /* supported video standards */
  81 static struct cx231xx_fmt format[] = {
  82         {
  83          .fourcc = V4L2_PIX_FMT_YUYV,
  84          .depth = 16,
  85          .reg = 0,
  86          },
  87 };
  88
  89
  90 static int cx231xx_enable_analog_tuner(struct cx231xx *dev)
  91 {
  92 #ifdef CONFIG_MEDIA_CONTROLLER
  93         struct media_device *mdev = dev->media_dev;
  94         struct media_entity  *entity, *decoder = NULL, *source;
  95         struct media_link *link, *found_link = NULL;
  96         int ret, active_links = 0;
  97
  98         if (!mdev)
  99                 return 0;
 100
 101         /*
 102          * This will find the tuner that is connected into the decoder.
 103          * Technically, this is not 100% correct, as the device may be
 104          * using an analog input instead of the tuner. However, as we can't
 105          * do DVB streaming while the DMA engine is being used for V4L2,
 106          * this should be enough for the actual needs.
 107          */
 108         media_device_for_each_entity(entity, mdev) {
 109                 if (entity->function == MEDIA_ENT_F_ATV_DECODER) {
 110                         decoder = entity;
 111                         break;
 112                 }
 113         }
 114         if (!decoder)
 115                 return 0;
 116
 117         list_for_each_entry(link, &decoder->links, list) {
 118                 if (link->sink->entity == decoder) {
 119                         found_link = link;
 120                         if (link->flags & MEDIA_LNK_FL_ENABLED)
 121                                 active_links++;
 122                         break;
 123                 }
 124         }
 125
 126         if (active_links == 1 || !found_link)
 127                 return 0;
 128
 129         source = found_link->source->entity;
 130         list_for_each_entry(link, &source->links, list) {
 131                 struct media_entity *sink;
 132                 int flags = 0;
 133
 134                 sink = link->sink->entity;
 135
 136                 if (sink == entity)
 137                         flags = MEDIA_LNK_FL_ENABLED;
 138
 139                 ret = media_entity_setup_link(link, flags);
 140                 if (ret) {
 141                         dev_err(dev->dev,
 142                                 "Couldn't change link %s->%s to %s. Error %d\n",
 143                                 source->name, sink->name,
 144                                 flags ? "enabled" : "disabled",
 145                                 ret);
 146                         return ret;
 147                 } else
 148                         dev_dbg(dev->dev,
 149                                 "link %s->%s was %s\n",
 150                                 source->name, sink->name,
 151                                 flags ? "ENABLED" : "disabled");
 152         }
 153 #endif
 154         return 0;
 155 }
 156
 157 /* ------------------------------------------------------------------
 158         Video buffer and parser functions
 159    ------------------------------------------------------------------*/
 160
 161 /*
 162  * Announces that a buffer were filled and request the next
 163  */
 164 static inline void buffer_filled(struct cx231xx *dev,
 165                                  struct cx231xx_dmaqueue *dma_q,
 166                                  struct cx231xx_buffer *buf)
 167 {
 168         /* Advice that buffer was filled */
 169         cx231xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.vb2_buf.index);
 170         buf->vb.sequence = dma_q->sequence++;
 171         buf->vb.field = V4L2_FIELD_INTERLACED;
 172         buf->vb.vb2_buf.timestamp = ktime_get_ns();
 173         vb2_set_plane_payload(&buf->vb.vb2_buf, 0, dev->size);
 174
 175         if (dev->USE_ISO)
 176                 dev->video_mode.isoc_ctl.buf = NULL;
 177         else
 178                 dev->video_mode.bulk_ctl.buf = NULL;
 179
 180         list_del(&buf->list);
 181         vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
 182 }
 183
 184 static inline void print_err_status(struct cx231xx *dev, int packet, int status)
 185 {
 186         char *errmsg = "Unknown";
 187
 188         switch (status) {
 189         case -ENOENT:
 190                 errmsg = "unlinked synchronously";
 191                 break;
 192         case -ECONNRESET:
 193                 errmsg = "unlinked asynchronously";
 194                 break;
 195         case -ENOSR:
 196                 errmsg = "Buffer error (overrun)";
 197                 break;
 198         case -EPIPE:
 199                 errmsg = "Stalled (device not responding)";
 200                 break;
 201         case -EOVERFLOW:
 202                 errmsg = "Babble (bad cable?)";
 203                 break;
 204         case -EPROTO:
 205                 errmsg = "Bit-stuff error (bad cable?)";
 206                 break;
 207         case -EILSEQ:
 208                 errmsg = "CRC/Timeout (could be anything)";
 209                 break;
 210         case -ETIME:
 211                 errmsg = "Device does not respond";
 212                 break;
 213         }
 214         if (packet < 0) {
 215                 cx231xx_isocdbg("URB status %d [%s].\n", status, errmsg);
 216         } else {
 217                 cx231xx_isocdbg("URB packet %d, status %d [%s].\n",
 218                                 packet, status, errmsg);
 219         }
 220 }
 221
 222 /*
 223  * video-buf generic routine to get the next available buffer
 224  */
 225 static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q,
 226                                 struct cx231xx_buffer **buf)
 227 {
 228         struct cx231xx_video_mode *vmode =
 229             container_of(dma_q, struct cx231xx_video_mode, vidq);
 230         struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 231
 232         char *outp;
 233
 234         if (list_empty(&dma_q->active)) {
 235                 cx231xx_isocdbg("No active queue to serve\n");
 236                 if (dev->USE_ISO)
 237                         dev->video_mode.isoc_ctl.buf = NULL;
 238                 else
 239                         dev->video_mode.bulk_ctl.buf = NULL;
 240                 *buf = NULL;
 241                 return;
 242         }
 243
 244         /* Get the next buffer */
 245         *buf = list_entry(dma_q->active.next, struct cx231xx_buffer, list);
 246
 247         /* Cleans up buffer - Useful for testing for frame/URB loss */
 248         outp = vb2_plane_vaddr(&(*buf)->vb.vb2_buf, 0);
 249         memset(outp, 0, dev->size);
 250
 251         if (dev->USE_ISO)
 252                 dev->video_mode.isoc_ctl.buf = *buf;
 253         else
 254                 dev->video_mode.bulk_ctl.buf = *buf;
 255
 256         return;
 257 }
 258
 259 /*
 260  * Controls the isoc copy of each urb packet
 261  */
 262 static inline int cx231xx_isoc_copy(struct cx231xx *dev, struct urb *urb)
 263 {
 264         struct cx231xx_dmaqueue *dma_q = urb->context;
 265         int i;
 266         unsigned char *p_buffer;
 267         u32 bytes_parsed = 0, buffer_size = 0;
 268         u8 sav_eav = 0;
 269
 270         if (!dev)
 271                 return 0;
 272
 273         if (dev->state & DEV_DISCONNECTED)
 274                 return 0;
 275
 276         if (urb->status < 0) {
 277                 print_err_status(dev, -1, urb->status);
 278                 if (urb->status == -ENOENT)
 279                         return 0;
 280         }
 281
 282         for (i = 0; i < urb->number_of_packets; i++) {
 283                 int status = urb->iso_frame_desc[i].status;
 284
 285                 if (status < 0) {
 286                         print_err_status(dev, i, status);
 287                         if (urb->iso_frame_desc[i].status != -EPROTO)
 288                                 continue;
 289                 }
 290
 291                 if (urb->iso_frame_desc[i].actual_length <= 0) {
 292                         /* cx231xx_isocdbg("packet %d is empty",i); - spammy */
 293                         continue;
 294                 }
 295                 if (urb->iso_frame_desc[i].actual_length >
 296                     dev->video_mode.max_pkt_size) {
 297                         cx231xx_isocdbg("packet bigger than packet size");
 298                         continue;
 299                 }
 300
 301                 /*  get buffer pointer and length */
 302                 p_buffer = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
 303                 buffer_size = urb->iso_frame_desc[i].actual_length;
 304                 bytes_parsed = 0;
 305
 306                 if (dma_q->is_partial_line) {
 307                         /* Handle the case of a partial line */
 308                         sav_eav = dma_q->last_sav;
 309                 } else {
 310                         /* Check for a SAV/EAV overlapping
 311                                 the buffer boundary */
 312                         sav_eav =
 313                             cx231xx_find_boundary_SAV_EAV(p_buffer,
 314                                                           dma_q->partial_buf,
 315                                                           &bytes_parsed);
 316                 }
 317
 318                 sav_eav &= 0xF0;
 319                 /* Get the first line if we have some portion of an SAV/EAV from
 320                    the last buffer or a partial line  */
 321                 if (sav_eav) {
 322                         bytes_parsed += cx231xx_get_video_line(dev, dma_q,
 323                                 sav_eav,        /* SAV/EAV */
 324                                 p_buffer + bytes_parsed,        /* p_buffer */
 325                                 buffer_size - bytes_parsed);/* buf size */
 326                 }
 327
 328                 /* Now parse data that is completely in this buffer */
 329                 /* dma_q->is_partial_line = 0;  */
 330
 331                 while (bytes_parsed < buffer_size) {
 332                         u32 bytes_used = 0;
 333
 334                         sav_eav = cx231xx_find_next_SAV_EAV(
 335                                 p_buffer + bytes_parsed,        /* p_buffer */
 336                                 buffer_size - bytes_parsed,     /* buf size */
 337                                 &bytes_used);/* bytes used to get SAV/EAV */
 338
 339                         bytes_parsed += bytes_used;
 340
 341                         sav_eav &= 0xF0;
 342                         if (sav_eav && (bytes_parsed < buffer_size)) {
 343                                 bytes_parsed += cx231xx_get_video_line(dev,
 344                                         dma_q, sav_eav, /* SAV/EAV */
 345                                         p_buffer + bytes_parsed,/* p_buffer */
 346                                         buffer_size - bytes_parsed);/*buf size*/
 347                         }
 348                 }
 349
 350                 /* Save the last four bytes of the buffer so we can check the
 351                    buffer boundary condition next time */
 352                 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
 353                 bytes_parsed = 0;
 354
 355         }
 356         return 1;
 357 }
 358
 359 static inline int cx231xx_bulk_copy(struct cx231xx *dev, struct urb *urb)
 360 {
 361         struct cx231xx_dmaqueue *dma_q = urb->context;
 362         unsigned char *p_buffer;
 363         u32 bytes_parsed = 0, buffer_size = 0;
 364         u8 sav_eav = 0;
 365
 366         if (!dev)
 367                 return 0;
 368
 369         if (dev->state & DEV_DISCONNECTED)
 370                 return 0;
 371
 372         if (urb->status < 0) {
 373                 print_err_status(dev, -1, urb->status);
 374                 if (urb->status == -ENOENT)
 375                         return 0;
 376         }
 377
 378         if (1) {
 379
 380                 /*  get buffer pointer and length */
 381                 p_buffer = urb->transfer_buffer;
 382                 buffer_size = urb->actual_length;
 383                 bytes_parsed = 0;
 384
 385                 if (dma_q->is_partial_line) {
 386                         /* Handle the case of a partial line */
 387                         sav_eav = dma_q->last_sav;
 388                 } else {
 389                         /* Check for a SAV/EAV overlapping
 390                                 the buffer boundary */
 391                         sav_eav =
 392                             cx231xx_find_boundary_SAV_EAV(p_buffer,
 393                                                           dma_q->partial_buf,
 394                                                           &bytes_parsed);
 395                 }
 396
 397                 sav_eav &= 0xF0;
 398                 /* Get the first line if we have some portion of an SAV/EAV from
 399                    the last buffer or a partial line  */
 400                 if (sav_eav) {
 401                         bytes_parsed += cx231xx_get_video_line(dev, dma_q,
 402                                 sav_eav,        /* SAV/EAV */
 403                                 p_buffer + bytes_parsed,        /* p_buffer */
 404                                 buffer_size - bytes_parsed);/* buf size */
 405                 }
 406
 407                 /* Now parse data that is completely in this buffer */
 408                 /* dma_q->is_partial_line = 0;  */
 409
 410                 while (bytes_parsed < buffer_size) {
 411                         u32 bytes_used = 0;
 412
 413                         sav_eav = cx231xx_find_next_SAV_EAV(
 414                                 p_buffer + bytes_parsed,        /* p_buffer */
 415                                 buffer_size - bytes_parsed,     /* buf size */
 416                                 &bytes_used);/* bytes used to get SAV/EAV */
 417
 418                         bytes_parsed += bytes_used;
 419
 420                         sav_eav &= 0xF0;
 421                         if (sav_eav && (bytes_parsed < buffer_size)) {
 422                                 bytes_parsed += cx231xx_get_video_line(dev,
 423                                         dma_q, sav_eav, /* SAV/EAV */
 424                                         p_buffer + bytes_parsed,/* p_buffer */
 425                                         buffer_size - bytes_parsed);/*buf size*/
 426                         }
 427                 }
 428
 429                 /* Save the last four bytes of the buffer so we can check the
 430                    buffer boundary condition next time */
 431                 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
 432                 bytes_parsed = 0;
 433
 434         }
 435         return 1;
 436 }
 437
 438
 439 u8 cx231xx_find_boundary_SAV_EAV(u8 *p_buffer, u8 *partial_buf,
 440                                  u32 *p_bytes_used)
 441 {
 442         u32 bytes_used;
 443         u8 boundary_bytes[8];
 444         u8 sav_eav = 0;
 445
 446         *p_bytes_used = 0;
 447
 448         /* Create an array of the last 4 bytes of the last buffer and the first
 449            4 bytes of the current buffer. */
 450
 451         memcpy(boundary_bytes, partial_buf, 4);
 452         memcpy(boundary_bytes + 4, p_buffer, 4);
 453
 454         /* Check for the SAV/EAV in the boundary buffer */
 455         sav_eav = cx231xx_find_next_SAV_EAV((u8 *)&boundary_bytes, 8,
 456                                             &bytes_used);
 457
 458         if (sav_eav) {
 459                 /* found a boundary SAV/EAV.  Updates the bytes used to reflect
 460                    only those used in the new buffer */
 461                 *p_bytes_used = bytes_used - 4;
 462         }
 463
 464         return sav_eav;
 465 }
 466
 467 u8 cx231xx_find_next_SAV_EAV(u8 *p_buffer, u32 buffer_size, u32 *p_bytes_used)
 468 {
 469         u32 i;
 470         u8 sav_eav = 0;
 471
 472         /*
 473          * Don't search if the buffer size is less than 4.  It causes a page
 474          * fault since buffer_size - 4 evaluates to a large number in that
 475          * case.
 476          */
 477         if (buffer_size < 4) {
 478                 *p_bytes_used = buffer_size;
 479                 return 0;
 480         }
 481
 482         for (i = 0; i < (buffer_size - 3); i++) {
 483
 484                 if ((p_buffer[i] == 0xFF) &&
 485                     (p_buffer[i + 1] == 0x00) && (p_buffer[i + 2] == 0x00)) {
 486
 487                         *p_bytes_used = i + 4;
 488                         sav_eav = p_buffer[i + 3];
 489                         return sav_eav;
 490                 }
 491         }
 492
 493         *p_bytes_used = buffer_size;
 494         return 0;
 495 }
 496
 497 u32 cx231xx_get_video_line(struct cx231xx *dev,
 498                            struct cx231xx_dmaqueue *dma_q, u8 sav_eav,
 499                            u8 *p_buffer, u32 buffer_size)
 500 {
 501         u32 bytes_copied = 0;
 502         int current_field = -1;
 503
 504         switch (sav_eav) {
 505         case SAV_ACTIVE_VIDEO_FIELD1:
 506                 /* looking for skipped line which occurred in PAL 720x480 mode.
 507                    In this case, there will be no active data contained
 508                    between the SAV and EAV */
 509                 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
 510                     (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
 511                     ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
 512                      (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
 513                      (p_buffer[3] == EAV_VBLANK_FIELD1) ||
 514                      (p_buffer[3] == EAV_VBLANK_FIELD2)))
 515                         return bytes_copied;
 516                 current_field = 1;
 517                 break;
 518
 519         case SAV_ACTIVE_VIDEO_FIELD2:
 520                 /* looking for skipped line which occurred in PAL 720x480 mode.
 521                    In this case, there will be no active data contained between
 522                    the SAV and EAV */
 523                 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
 524                     (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
 525                     ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
 526                      (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
 527                      (p_buffer[3] == EAV_VBLANK_FIELD1)       ||
 528                      (p_buffer[3] == EAV_VBLANK_FIELD2)))
 529                         return bytes_copied;
 530                 current_field = 2;
 531                 break;
 532         }
 533
 534         dma_q->last_sav = sav_eav;
 535
 536         bytes_copied = cx231xx_copy_video_line(dev, dma_q, p_buffer,
 537                                                buffer_size, current_field);
 538
 539         return bytes_copied;
 540 }
 541
 542 u32 cx231xx_copy_video_line(struct cx231xx *dev,
 543                             struct cx231xx_dmaqueue *dma_q, u8 *p_line,
 544                             u32 length, int field_number)
 545 {
 546         u32 bytes_to_copy;
 547         struct cx231xx_buffer *buf;
 548         u32 _line_size = dev->width * 2;
 549
 550         if (dma_q->current_field != field_number)
 551                 cx231xx_reset_video_buffer(dev, dma_q);
 552
 553         /* get the buffer pointer */
 554         if (dev->USE_ISO)
 555                 buf = dev->video_mode.isoc_ctl.buf;
 556         else
 557                 buf = dev->video_mode.bulk_ctl.buf;
 558
 559         /* Remember the field number for next time */
 560         dma_q->current_field = field_number;
 561
 562         bytes_to_copy = dma_q->bytes_left_in_line;
 563         if (bytes_to_copy > length)
 564                 bytes_to_copy = length;
 565
 566         if (dma_q->lines_completed >= dma_q->lines_per_field) {
 567                 dma_q->bytes_left_in_line -= bytes_to_copy;
 568                 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ?
 569                                           0 : 1;
 570                 return 0;
 571         }
 572
 573         dma_q->is_partial_line = 1;
 574
 575         /* If we don't have a buffer, just return the number of bytes we would
 576            have copied if we had a buffer. */
 577         if (!buf) {
 578                 dma_q->bytes_left_in_line -= bytes_to_copy;
 579                 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0)
 580                                          ? 0 : 1;
 581                 return bytes_to_copy;
 582         }
 583
 584         /* copy the data to video buffer */
 585         cx231xx_do_copy(dev, dma_q, p_line, bytes_to_copy);
 586
 587         dma_q->pos += bytes_to_copy;
 588         dma_q->bytes_left_in_line -= bytes_to_copy;
 589
 590         if (dma_q->bytes_left_in_line == 0) {
 591                 dma_q->bytes_left_in_line = _line_size;
 592                 dma_q->lines_completed++;
 593                 dma_q->is_partial_line = 0;
 594
 595                 if (cx231xx_is_buffer_done(dev, dma_q) && buf) {
 596                         buffer_filled(dev, dma_q, buf);
 597
 598                         dma_q->pos = 0;
 599                         buf = NULL;
 600                         dma_q->lines_completed = 0;
 601                 }
 602         }
 603
 604         return bytes_to_copy;
 605 }
 606
 607 void cx231xx_reset_video_buffer(struct cx231xx *dev,
 608                                 struct cx231xx_dmaqueue *dma_q)
 609 {
 610         struct cx231xx_buffer *buf;
 611
 612         /* handle the switch from field 1 to field 2 */
 613         if (dma_q->current_field == 1) {
 614                 if (dma_q->lines_completed >= dma_q->lines_per_field)
 615                         dma_q->field1_done = 1;
 616                 else
 617                         dma_q->field1_done = 0;
 618         }
 619
 620         if (dev->USE_ISO)
 621                 buf = dev->video_mode.isoc_ctl.buf;
 622         else
 623                 buf = dev->video_mode.bulk_ctl.buf;
 624
 625         if (buf == NULL) {
 626                 /* first try to get the buffer */
 627                 get_next_buf(dma_q, &buf);
 628
 629                 dma_q->pos = 0;
 630                 dma_q->field1_done = 0;
 631                 dma_q->current_field = -1;
 632         }
 633
 634         /* reset the counters */
 635         dma_q->bytes_left_in_line = dev->width << 1;
 636         dma_q->lines_completed = 0;
 637 }
 638
 639 int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
 640                     u8 *p_buffer, u32 bytes_to_copy)
 641 {
 642         u8 *p_out_buffer = NULL;
 643         u32 current_line_bytes_copied = 0;
 644         struct cx231xx_buffer *buf;
 645         u32 _line_size = dev->width << 1;
 646         void *startwrite;
 647         int offset, lencopy;
 648
 649         if (dev->USE_ISO)
 650                 buf = dev->video_mode.isoc_ctl.buf;
 651         else
 652                 buf = dev->video_mode.bulk_ctl.buf;
 653
 654         if (buf == NULL)
 655                 return -1;
 656
 657         p_out_buffer = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
 658
 659         current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line;
 660
 661         /* Offset field 2 one line from the top of the buffer */
 662         offset = (dma_q->current_field == 1) ? 0 : _line_size;
 663
 664         /* Offset for field 2 */
 665         startwrite = p_out_buffer + offset;
 666
 667         /* lines already completed in the current field */
 668         startwrite += (dma_q->lines_completed * _line_size * 2);
 669
 670         /* bytes already completed in the current line */
 671         startwrite += current_line_bytes_copied;
 672
 673         lencopy = dma_q->bytes_left_in_line > bytes_to_copy ?
 674                   bytes_to_copy : dma_q->bytes_left_in_line;
 675
 676         if ((u8 *)(startwrite + lencopy) > (u8 *)(p_out_buffer + dev->size))
 677                 return 0;
 678
 679         /* The below copies the UYVY data straight into video buffer */
 680         cx231xx_swab((u16 *) p_buffer, (u16 *) startwrite, (u16) lencopy);
 681
 682         return 0;
 683 }
 684
 685 void cx231xx_swab(u16 *from, u16 *to, u16 len)
 686 {
 687         u16 i;
 688
 689         if (len <= 0)
 690                 return;
 691
 692         for (i = 0; i < len / 2; i++)
 693                 to[i] = (from[i] << 8) | (from[i] >> 8);
 694 }
 695
 696 u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q)
 697 {
 698         u8 buffer_complete = 0;
 699
 700         /* Dual field stream */
 701         buffer_complete = ((dma_q->current_field == 2) &&
 702                            (dma_q->lines_completed >= dma_q->lines_per_field) &&
 703                             dma_q->field1_done);
 704
 705         return buffer_complete;
 706 }
 707
 708 /* ------------------------------------------------------------------
 709         Videobuf operations
 710    ------------------------------------------------------------------*/
 711
 712 static int queue_setup(struct vb2_queue *vq,
 713                        unsigned int *nbuffers, unsigned int *nplanes,
 714                        unsigned int sizes[], struct device *alloc_devs[])
 715 {
 716         struct cx231xx *dev = vb2_get_drv_priv(vq);
 717
 718         dev->size = (dev->width * dev->height * dev->format->depth + 7) >> 3;
 719
 720         if (vq->num_buffers + *nbuffers < CX231XX_MIN_BUF)
 721                 *nbuffers = CX231XX_MIN_BUF - vq->num_buffers;
 722
 723         if (*nplanes)
 724                 return sizes[0] < dev->size ? -EINVAL : 0;
 725         *nplanes = 1;
 726         sizes[0] = dev->size;
 727
 728         return 0;
 729 }
 730
 731 static void buffer_queue(struct vb2_buffer *vb)
 732 {
 733         struct cx231xx_buffer *buf =
 734             container_of(vb, struct cx231xx_buffer, vb.vb2_buf);
 735         struct cx231xx *dev = vb2_get_drv_priv(vb->vb2_queue);
 736         struct cx231xx_dmaqueue *vidq = &dev->video_mode.vidq;
 737         unsigned long flags;
 738
 739         spin_lock_irqsave(&dev->video_mode.slock, flags);
 740         list_add_tail(&buf->list, &vidq->active);
 741         spin_unlock_irqrestore(&dev->video_mode.slock, flags);
 742 }
 743
 744 static void return_all_buffers(struct cx231xx *dev,
 745                                enum vb2_buffer_state state)
 746 {
 747         struct cx231xx_dmaqueue *vidq = &dev->video_mode.vidq;
 748         struct cx231xx_buffer *buf, *node;
 749         unsigned long flags;
 750
 751         spin_lock_irqsave(&dev->video_mode.slock, flags);
 752         if (dev->USE_ISO)
 753                 dev->video_mode.isoc_ctl.buf = NULL;
 754         else
 755                 dev->video_mode.bulk_ctl.buf = NULL;
 756         list_for_each_entry_safe(buf, node, &vidq->active, list) {
 757                 list_del(&buf->list);
 758                 vb2_buffer_done(&buf->vb.vb2_buf, state);
 759         }
 760         spin_unlock_irqrestore(&dev->video_mode.slock, flags);
 761 }
 762
 763 static int start_streaming(struct vb2_queue *vq, unsigned int count)
 764 {
 765         struct cx231xx *dev = vb2_get_drv_priv(vq);
 766         struct cx231xx_dmaqueue *vidq = &dev->video_mode.vidq;
 767         int ret = 0;
 768
 769         vidq->sequence = 0;
 770         dev->mode_tv = 0;
 771
 772         cx231xx_enable_analog_tuner(dev);
 773         if (dev->USE_ISO)
 774                 ret = cx231xx_init_isoc(dev, CX231XX_NUM_PACKETS,
 775                                         CX231XX_NUM_BUFS,
 776                                         dev->video_mode.max_pkt_size,
 777                                         cx231xx_isoc_copy);
 778         else
 779                 ret = cx231xx_init_bulk(dev, CX231XX_NUM_PACKETS,
 780                                         CX231XX_NUM_BUFS,
 781                                         dev->video_mode.max_pkt_size,
 782                                         cx231xx_bulk_copy);
 783         if (ret)
 784                 return_all_buffers(dev, VB2_BUF_STATE_QUEUED);
 785         call_all(dev, video, s_stream, 1);
 786         return ret;
 787 }
 788
 789 static void stop_streaming(struct vb2_queue *vq)
 790 {
 791         struct cx231xx *dev = vb2_get_drv_priv(vq);
 792
 793         call_all(dev, video, s_stream, 0);
 794         return_all_buffers(dev, VB2_BUF_STATE_ERROR);
 795 }
 796
 797 static struct vb2_ops cx231xx_video_qops = {
 798         .queue_setup            = queue_setup,
 799         .buf_queue              = buffer_queue,
 800         .start_streaming        = start_streaming,
 801         .stop_streaming         = stop_streaming,
 802         .wait_prepare           = vb2_ops_wait_prepare,
 803         .wait_finish            = vb2_ops_wait_finish,
 804 };
 805
 806 /*********************  v4l2 interface  **************************************/
 807
 808 void video_mux(struct cx231xx *dev, int index)
 809 {
 810         dev->video_input = index;
 811         dev->ctl_ainput = INPUT(index)->amux;
 812
 813         cx231xx_set_video_input_mux(dev, index);
 814
 815         cx25840_call(dev, video, s_routing, INPUT(index)->vmux, 0, 0);
 816
 817         cx231xx_set_audio_input(dev, dev->ctl_ainput);
 818
 819         dev_dbg(dev->dev, "video_mux : %d\n", index);
 820
 821         /* do mode control overrides if required */
 822         cx231xx_do_mode_ctrl_overrides(dev);
 823 }
 824
 825 /* ------------------------------------------------------------------
 826         IOCTL vidioc handling
 827    ------------------------------------------------------------------*/
 828
 829 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 830                                 struct v4l2_format *f)
 831 {
 832         struct cx231xx *dev = video_drvdata(file);
 833
 834         f->fmt.pix.width = dev->width;
 835         f->fmt.pix.height = dev->height;
 836         f->fmt.pix.pixelformat = dev->format->fourcc;
 837         f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3;
 838         f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height;
 839         f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
 840
 841         f->fmt.pix.field = V4L2_FIELD_INTERLACED;
 842
 843         return 0;
 844 }
 845
 846 static struct cx231xx_fmt *format_by_fourcc(unsigned int fourcc)
 847 {
 848         unsigned int i;
 849
 850         for (i = 0; i < ARRAY_SIZE(format); i++)
 851                 if (format[i].fourcc == fourcc)
 852                         return &format[i];
 853
 854         return NULL;
 855 }
 856
 857 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 858                                   struct v4l2_format *f)
 859 {
 860         struct cx231xx *dev = video_drvdata(file);
 861         unsigned int width = f->fmt.pix.width;
 862         unsigned int height = f->fmt.pix.height;
 863         unsigned int maxw = norm_maxw(dev);
 864         unsigned int maxh = norm_maxh(dev);
 865         struct cx231xx_fmt *fmt;
 866
 867         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
 868         if (!fmt) {
 869                 cx231xx_videodbg("Fourcc format (%08x) invalid.\n",
 870                                  f->fmt.pix.pixelformat);
 871                 return -EINVAL;
 872         }
 873
 874         /* width must even because of the YUYV format
 875            height must be even because of interlacing */
 876         v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh, 1, 0);
 877
 878         f->fmt.pix.width = width;
 879         f->fmt.pix.height = height;
 880         f->fmt.pix.pixelformat = fmt->fourcc;
 881         f->fmt.pix.bytesperline = (width * fmt->depth + 7) >> 3;
 882         f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height;
 883         f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
 884         f->fmt.pix.field = V4L2_FIELD_INTERLACED;
 885
 886         return 0;
 887 }
 888
 889 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 890                                 struct v4l2_format *f)
 891 {
 892         struct cx231xx *dev = video_drvdata(file);
 893         struct v4l2_subdev_format format = {
 894                 .which = V4L2_SUBDEV_FORMAT_ACTIVE,
 895         };
 896         int rc;
 897
 898         rc = vidioc_try_fmt_vid_cap(file, priv, f);
 899         if (rc)
 900                 return rc;
 901
 902         if (vb2_is_busy(&dev->vidq)) {
 903                 dev_err(dev->dev, "%s: queue busy\n", __func__);
 904                 return -EBUSY;
 905         }
 906
 907         /* set new image size */
 908         dev->width = f->fmt.pix.width;
 909         dev->height = f->fmt.pix.height;
 910         dev->format = format_by_fourcc(f->fmt.pix.pixelformat);
 911
 912         v4l2_fill_mbus_format(&format.format, &f->fmt.pix, MEDIA_BUS_FMT_FIXED);
 913         call_all(dev, pad, set_fmt, NULL, &format);
 914         v4l2_fill_pix_format(&f->fmt.pix, &format.format);
 915
 916         return rc;
 917 }
 918
 919 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
 920 {
 921         struct cx231xx *dev = video_drvdata(file);
 922
 923         *id = dev->norm;
 924         return 0;
 925 }
 926
 927 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
 928 {
 929         struct cx231xx *dev = video_drvdata(file);
 930         struct v4l2_subdev_format format = {
 931                 .which = V4L2_SUBDEV_FORMAT_ACTIVE,
 932         };
 933
 934         if (dev->norm == norm)
 935                 return 0;
 936
 937         if (vb2_is_busy(&dev->vidq))
 938                 return -EBUSY;
 939
 940         dev->norm = norm;
 941
 942         /* Adjusts width/height, if needed */
 943         dev->width = 720;
 944         dev->height = (dev->norm & V4L2_STD_625_50) ? 576 : 480;
 945
 946         call_all(dev, video, s_std, dev->norm);
 947
 948         /* We need to reset basic properties in the decoder related to
 949            resolution (since a standard change effects things like the number
 950            of lines in VACT, etc) */
 951         format.format.code = MEDIA_BUS_FMT_FIXED;
 952         format.format.width = dev->width;
 953         format.format.height = dev->height;
 954         call_all(dev, pad, set_fmt, NULL, &format);
 955
 956         /* do mode control overrides */
 957         cx231xx_do_mode_ctrl_overrides(dev);
 958
 959         return 0;
 960 }
 961
 962 static const char *iname[] = {
 963         [CX231XX_VMUX_COMPOSITE1] = "Composite1",
 964         [CX231XX_VMUX_SVIDEO]     = "S-Video",
 965         [CX231XX_VMUX_TELEVISION] = "Television",
 966         [CX231XX_VMUX_CABLE]      = "Cable TV",
 967         [CX231XX_VMUX_DVB]        = "DVB",
 968 };
 969
 970 void cx231xx_v4l2_create_entities(struct cx231xx *dev)
 971 {
 972 #if defined(CONFIG_MEDIA_CONTROLLER)
 973         int ret, i;
 974
 975         /* Create entities for each input connector */
 976         for (i = 0; i < MAX_CX231XX_INPUT; i++) {
 977                 struct media_entity *ent = &dev->input_ent[i];
 978
 979                 if (!INPUT(i)->type)
 980                         break;
 981
 982                 ent->name = iname[INPUT(i)->type];
 983                 ent->flags = MEDIA_ENT_FL_CONNECTOR;
 984                 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
 985
 986                 switch (INPUT(i)->type) {
 987                 case CX231XX_VMUX_COMPOSITE1:
 988                         ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
 989                         break;
 990                 case CX231XX_VMUX_SVIDEO:
 991                         ent->function = MEDIA_ENT_F_CONN_SVIDEO;
 992                         break;
 993                 case CX231XX_VMUX_TELEVISION:
 994                 case CX231XX_VMUX_CABLE:
 995                 case CX231XX_VMUX_DVB:
 996                         /* The DVB core will handle it */
 997                         if (dev->tuner_type == TUNER_ABSENT)
 998                                 continue;
 999                         /* fall through */
1000                 default: /* just to shut up a gcc warning */
1001                         ent->function = MEDIA_ENT_F_CONN_RF;
1002                         break;
1003                 }
1004
1005                 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
1006                 if (ret < 0)
1007                         pr_err("failed to initialize input pad[%d]!\n", i);
1008
1009                 ret = media_device_register_entity(dev->media_dev, ent);
1010                 if (ret < 0)
1011                         pr_err("failed to register input entity %d!\n", i);
1012         }
1013 #endif
1014 }
1015
1016 int cx231xx_enum_input(struct file *file, void *priv,
1017                              struct v4l2_input *i)
1018 {
1019         struct cx231xx *dev = video_drvdata(file);
1020         u32 gen_stat;
1021         unsigned int n;
1022         int ret;
1023
1024         n = i->index;
1025         if (n >= MAX_CX231XX_INPUT)
1026                 return -EINVAL;
1027         if (0 == INPUT(n)->type)
1028                 return -EINVAL;
1029
1030         i->index = n;
1031         i->type = V4L2_INPUT_TYPE_CAMERA;
1032
1033         strscpy(i->name, iname[INPUT(n)->type], sizeof(i->name));
1034
1035         if ((CX231XX_VMUX_TELEVISION == INPUT(n)->type) ||
1036             (CX231XX_VMUX_CABLE == INPUT(n)->type))
1037                 i->type = V4L2_INPUT_TYPE_TUNER;
1038
1039         i->std = dev->vdev.tvnorms;
1040
1041         /* If they are asking about the active input, read signal status */
1042         if (n == dev->video_input) {
1043                 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1044                                             GEN_STAT, 2, &gen_stat, 4);
1045                 if (ret > 0) {
1046                         if ((gen_stat & FLD_VPRES) == 0x00)
1047                                 i->status |= V4L2_IN_ST_NO_SIGNAL;
1048                         if ((gen_stat & FLD_HLOCK) == 0x00)
1049                                 i->status |= V4L2_IN_ST_NO_H_LOCK;
1050                 }
1051         }
1052
1053         return 0;
1054 }
1055
1056 int cx231xx_g_input(struct file *file, void *priv, unsigned int *i)
1057 {
1058         struct cx231xx *dev = video_drvdata(file);
1059
1060         *i = dev->video_input;
1061
1062         return 0;
1063 }
1064
1065 int cx231xx_s_input(struct file *file, void *priv, unsigned int i)
1066 {
1067         struct cx231xx *dev = video_drvdata(file);
1068
1069         dev->mode_tv = 0;
1070
1071         if (i >= MAX_CX231XX_INPUT)
1072                 return -EINVAL;
1073         if (0 == INPUT(i)->type)
1074                 return -EINVAL;
1075
1076         video_mux(dev, i);
1077
1078         if (INPUT(i)->type == CX231XX_VMUX_TELEVISION ||
1079             INPUT(i)->type == CX231XX_VMUX_CABLE) {
1080                 /* There's a tuner, so reset the standard and put it on the
1081                    last known frequency (since it was probably powered down
1082                    until now */
1083                 call_all(dev, video, s_std, dev->norm);
1084         }
1085
1086         return 0;
1087 }
1088
1089 int cx231xx_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1090 {
1091         struct cx231xx *dev = video_drvdata(file);
1092
1093         if (0 != t->index)
1094                 return -EINVAL;
1095
1096         strscpy(t->name, "Tuner", sizeof(t->name));
1097
1098         t->type = V4L2_TUNER_ANALOG_TV;
1099         t->capability = V4L2_TUNER_CAP_NORM;
1100         t->rangehigh = 0xffffffffUL;
1101         t->signal = 0xffff;     /* LOCKED */
1102         call_all(dev, tuner, g_tuner, t);
1103
1104         return 0;
1105 }
1106
1107 int cx231xx_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t)
1108 {
1109         if (0 != t->index)
1110                 return -EINVAL;
1111         return 0;
1112 }
1113
1114 int cx231xx_g_frequency(struct file *file, void *priv,
1115                               struct v4l2_frequency *f)
1116 {
1117         struct cx231xx *dev = video_drvdata(file);
1118
1119         if (f->tuner)
1120                 return -EINVAL;
1121
1122         f->frequency = dev->ctl_freq;
1123
1124         return 0;
1125 }
1126
1127 int cx231xx_s_frequency(struct file *file, void *priv,
1128                               const struct v4l2_frequency *f)
1129 {
1130         struct cx231xx *dev = video_drvdata(file);
1131         struct v4l2_frequency new_freq = *f;
1132         int rc;
1133         u32 if_frequency = 5400000;
1134
1135         dev_dbg(dev->dev,
1136                 "Enter vidioc_s_frequency()f->frequency=%d;f->type=%d\n",
1137                 f->frequency, f->type);
1138
1139         if (0 != f->tuner)
1140                 return -EINVAL;
1141
1142         /* set pre channel change settings in DIF first */
1143         rc = cx231xx_tuner_pre_channel_change(dev);
1144
1145         call_all(dev, tuner, s_frequency, f);
1146         call_all(dev, tuner, g_frequency, &new_freq);
1147         dev->ctl_freq = new_freq.frequency;
1148
1149         /* set post channel change settings in DIF first */
1150         rc = cx231xx_tuner_post_channel_change(dev);
1151
1152         if (dev->tuner_type == TUNER_NXP_TDA18271) {
1153                 if (dev->norm & (V4L2_STD_MN | V4L2_STD_NTSC_443))
1154                         if_frequency = 5400000;  /*5.4MHz       */
1155                 else if (dev->norm & V4L2_STD_B)
1156                         if_frequency = 6000000;  /*6.0MHz       */
1157                 else if (dev->norm & (V4L2_STD_PAL_DK | V4L2_STD_SECAM_DK))
1158                         if_frequency = 6900000;  /*6.9MHz       */
1159                 else if (dev->norm & V4L2_STD_GH)
1160                         if_frequency = 7100000;  /*7.1MHz       */
1161                 else if (dev->norm & V4L2_STD_PAL_I)
1162                         if_frequency = 7250000;  /*7.25MHz      */
1163                 else if (dev->norm & V4L2_STD_SECAM_L)
1164                         if_frequency = 6900000;  /*6.9MHz       */
1165                 else if (dev->norm & V4L2_STD_SECAM_LC)
1166                         if_frequency = 1250000;  /*1.25MHz      */
1167
1168                 dev_dbg(dev->dev,
1169                         "if_frequency is set to %d\n", if_frequency);
1170                 cx231xx_set_Colibri_For_LowIF(dev, if_frequency, 1, 1);
1171
1172                 update_HH_register_after_set_DIF(dev);
1173         }
1174
1175         dev_dbg(dev->dev, "Set New FREQUENCY to %d\n", f->frequency);
1176
1177         return rc;
1178 }
1179
1180 #ifdef CONFIG_VIDEO_ADV_DEBUG
1181
1182 int cx231xx_g_chip_info(struct file *file, void *fh,
1183                         struct v4l2_dbg_chip_info *chip)
1184 {
1185         switch (chip->match.addr) {
1186         case 0: /* Cx231xx - internal registers */
1187                 return 0;
1188         case 1: /* AFE - read byte */
1189                 strscpy(chip->name, "AFE (byte)", sizeof(chip->name));
1190                 return 0;
1191         case 2: /* Video Block - read byte */
1192                 strscpy(chip->name, "Video (byte)", sizeof(chip->name));
1193                 return 0;
1194         case 3: /* I2S block - read byte */
1195                 strscpy(chip->name, "I2S (byte)", sizeof(chip->name));
1196                 return 0;
1197         case 4: /* AFE - read dword */
1198                 strscpy(chip->name, "AFE (dword)", sizeof(chip->name));
1199                 return 0;
1200         case 5: /* Video Block - read dword */
1201                 strscpy(chip->name, "Video (dword)", sizeof(chip->name));
1202                 return 0;
1203         case 6: /* I2S Block - read dword */
1204                 strscpy(chip->name, "I2S (dword)", sizeof(chip->name));
1205                 return 0;
1206         }
1207         return -EINVAL;
1208 }
1209
1210 int cx231xx_g_register(struct file *file, void *priv,
1211                              struct v4l2_dbg_register *reg)
1212 {
1213         struct cx231xx *dev = video_drvdata(file);
1214         int ret;
1215         u8 value[4] = { 0, 0, 0, 0 };
1216         u32 data = 0;
1217
1218         switch (reg->match.addr) {
1219         case 0: /* Cx231xx - internal registers */
1220                 ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
1221                                 (u16)reg->reg, value, 4);
1222                 reg->val = value[0] | value[1] << 8 |
1223                         value[2] << 16 | (u32)value[3] << 24;
1224                 reg->size = 4;
1225                 break;
1226         case 1: /* AFE - read byte */
1227                 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1228                                 (u16)reg->reg, 2, &data, 1);
1229                 reg->val = data;
1230                 reg->size = 1;
1231                 break;
1232         case 2: /* Video Block - read byte */
1233                 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1234                                 (u16)reg->reg, 2, &data, 1);
1235                 reg->val = data;
1236                 reg->size = 1;
1237                 break;
1238         case 3: /* I2S block - read byte */
1239                 ret = cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1240                                 (u16)reg->reg, 1, &data, 1);
1241                 reg->val = data;
1242                 reg->size = 1;
1243                 break;
1244         case 4: /* AFE - read dword */
1245                 ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1246                                 (u16)reg->reg, 2, &data, 4);
1247                 reg->val = data;
1248                 reg->size = 4;
1249                 break;
1250         case 5: /* Video Block - read dword */
1251                 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1252                                 (u16)reg->reg, 2, &data, 4);
1253                 reg->val = data;
1254                 reg->size = 4;
1255                 break;
1256         case 6: /* I2S Block - read dword */
1257                 ret = cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1258                                 (u16)reg->reg, 1, &data, 4);
1259                 reg->val = data;
1260                 reg->size = 4;
1261                 break;
1262         default:
1263                 return -EINVAL;
1264         }
1265         return ret < 0 ? ret : 0;
1266 }
1267
1268 int cx231xx_s_register(struct file *file, void *priv,
1269                              const struct v4l2_dbg_register *reg)
1270 {
1271         struct cx231xx *dev = video_drvdata(file);
1272         int ret;
1273         u8 data[4] = { 0, 0, 0, 0 };
1274
1275         switch (reg->match.addr) {
1276         case 0: /* cx231xx internal registers */
1277                 data[0] = (u8) reg->val;
1278                 data[1] = (u8) (reg->val >> 8);
1279                 data[2] = (u8) (reg->val >> 16);
1280                 data[3] = (u8) (reg->val >> 24);
1281                 ret = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1282                                 (u16)reg->reg, data, 4);
1283                 break;
1284         case 1: /* AFE - write byte */
1285                 ret = cx231xx_write_i2c_data(dev, AFE_DEVICE_ADDRESS,
1286                                 (u16)reg->reg, 2, reg->val, 1);
1287                 break;
1288         case 2: /* Video Block - write byte */
1289                 ret = cx231xx_write_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1290                                 (u16)reg->reg, 2, reg->val, 1);
1291                 break;
1292         case 3: /* I2S block - write byte */
1293                 ret = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1294                                 (u16)reg->reg, 1, reg->val, 1);
1295                 break;
1296         case 4: /* AFE - write dword */
1297                 ret = cx231xx_write_i2c_data(dev, AFE_DEVICE_ADDRESS,
1298                                 (u16)reg->reg, 2, reg->val, 4);
1299                 break;
1300         case 5: /* Video Block - write dword */
1301                 ret = cx231xx_write_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1302                                 (u16)reg->reg, 2, reg->val, 4);
1303                 break;
1304         case 6: /* I2S block - write dword */
1305                 ret = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1306                                 (u16)reg->reg, 1, reg->val, 4);
1307                 break;
1308         default:
1309                 return -EINVAL;
1310         }
1311         return ret < 0 ? ret : 0;
1312 }
1313 #endif
1314
1315 static int vidioc_g_pixelaspect(struct file *file, void *priv,
1316                                 int type, struct v4l2_fract *f)
1317 {
1318         struct cx231xx *dev = video_drvdata(file);
1319         bool is_50hz = dev->norm & V4L2_STD_625_50;
1320
1321         if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1322                 return -EINVAL;
1323
1324         f->numerator = is_50hz ? 54 : 11;
1325         f->denominator = is_50hz ? 59 : 10;
1326
1327         return 0;
1328 }
1329
1330 static int vidioc_g_selection(struct file *file, void *priv,
1331                               struct v4l2_selection *s)
1332 {
1333         struct cx231xx *dev = video_drvdata(file);
1334
1335         if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1336                 return -EINVAL;
1337
1338         switch (s->target) {
1339         case V4L2_SEL_TGT_CROP_BOUNDS:
1340         case V4L2_SEL_TGT_CROP_DEFAULT:
1341                 s->r.left = 0;
1342                 s->r.top = 0;
1343                 s->r.width = dev->width;
1344                 s->r.height = dev->height;
1345                 break;
1346         default:
1347                 return -EINVAL;
1348         }
1349         return 0;
1350 }
1351
1352 int cx231xx_querycap(struct file *file, void *priv,
1353                            struct v4l2_capability *cap)
1354 {
1355         struct cx231xx *dev = video_drvdata(file);
1356
1357         strscpy(cap->driver, "cx231xx", sizeof(cap->driver));
1358         strscpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
1359         usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
1360         cap->capabilities = V4L2_CAP_READWRITE |
1361                 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE |
1362                 V4L2_CAP_STREAMING | V4L2_CAP_DEVICE_CAPS;
1363         if (video_is_registered(&dev->radio_dev))
1364                 cap->capabilities |= V4L2_CAP_RADIO;
1365         if (dev->tuner_type != TUNER_ABSENT)
1366                 cap->capabilities |= V4L2_CAP_TUNER;
1367
1368         return 0;
1369 }
1370
1371 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1372                                    struct v4l2_fmtdesc *f)
1373 {
1374         if (unlikely(f->index >= ARRAY_SIZE(format)))
1375                 return -EINVAL;
1376
1377         f->pixelformat = format[f->index].fourcc;
1378
1379         return 0;
1380 }
1381
1382 /* RAW VBI ioctls */
1383
1384 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1385                                 struct v4l2_format *f)
1386 {
1387         struct cx231xx *dev = video_drvdata(file);
1388
1389         f->fmt.vbi.sampling_rate = 6750000 * 4;
1390         f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1391         f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1392         f->fmt.vbi.offset = 0;
1393         f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1394             PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1395         f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1396             PAL_VBI_LINES : NTSC_VBI_LINES;
1397         f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1398             PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1399         f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1400         memset(f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
1401
1402         return 0;
1403
1404 }
1405
1406 static int vidioc_try_fmt_vbi_cap(struct file *file, void *priv,
1407                                   struct v4l2_format *f)
1408 {
1409         struct cx231xx *dev = video_drvdata(file);
1410
1411         f->fmt.vbi.sampling_rate = 6750000 * 4;
1412         f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1413         f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1414         f->fmt.vbi.offset = 0;
1415         f->fmt.vbi.flags = 0;
1416         f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1417             PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1418         f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1419             PAL_VBI_LINES : NTSC_VBI_LINES;
1420         f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1421             PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1422         f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1423         memset(f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
1424
1425         return 0;
1426
1427 }
1428
1429 static int vidioc_s_fmt_vbi_cap(struct file *file, void *priv,
1430                                   struct v4l2_format *f)
1431 {
1432         return vidioc_try_fmt_vbi_cap(file, priv, f);
1433 }
1434
1435 /* ----------------------------------------------------------- */
1436 /* RADIO ESPECIFIC IOCTLS                                      */
1437 /* ----------------------------------------------------------- */
1438
1439 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1440 {
1441         struct cx231xx *dev = video_drvdata(file);
1442
1443         if (t->index)
1444                 return -EINVAL;
1445
1446         strscpy(t->name, "Radio", sizeof(t->name));
1447
1448         call_all(dev, tuner, g_tuner, t);
1449
1450         return 0;
1451 }
1452 static int radio_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t)
1453 {
1454         struct cx231xx *dev = video_drvdata(file);
1455
1456         if (t->index)
1457                 return -EINVAL;
1458
1459         call_all(dev, tuner, s_tuner, t);
1460
1461         return 0;
1462 }
1463
1464 /*
1465  * cx231xx_v4l2_open()
1466  * inits the device and starts isoc transfer
1467  */
1468 static int cx231xx_v4l2_open(struct file *filp)
1469 {
1470         struct video_device *vdev = video_devdata(filp);
1471         struct cx231xx *dev = video_drvdata(filp);
1472         int ret;
1473
1474         if (mutex_lock_interruptible(&dev->lock))
1475                 return -ERESTARTSYS;
1476
1477         ret = v4l2_fh_open(filp);
1478         if (ret) {
1479                 mutex_unlock(&dev->lock);
1480                 return ret;
1481         }
1482
1483         if (dev->users++ == 0) {
1484                 /* Power up in Analog TV mode */
1485                 if (dev->board.external_av)
1486                         cx231xx_set_power_mode(dev,
1487                                  POLARIS_AVMODE_ENXTERNAL_AV);
1488                 else
1489                         cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV);
1490
1491                 /* set video alternate setting */
1492                 cx231xx_set_video_alternate(dev);
1493
1494                 /* Needed, since GPIO might have disabled power of
1495                    some i2c device */
1496                 cx231xx_config_i2c(dev);
1497
1498                 /* device needs to be initialized before isoc transfer */
1499                 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1500         }
1501
1502         if (vdev->vfl_type == VFL_TYPE_RADIO) {
1503                 cx231xx_videodbg("video_open: setting radio device\n");
1504
1505                 /* cx231xx_start_radio(dev); */
1506
1507                 call_all(dev, tuner, s_radio);
1508         }
1509         if (vdev->vfl_type == VFL_TYPE_VBI) {
1510                 /* Set the required alternate setting  VBI interface works in
1511                    Bulk mode only */
1512                 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1513         }
1514         mutex_unlock(&dev->lock);
1515         return 0;
1516 }
1517
1518 /*
1519  * cx231xx_realease_resources()
1520  * unregisters the v4l2,i2c and usb devices
1521  * called when the device gets disconnected or at module unload
1522 */
1523 void cx231xx_release_analog_resources(struct cx231xx *dev)
1524 {
1525
1526         /*FIXME: I2C IR should be disconnected */
1527
1528         if (video_is_registered(&dev->radio_dev))
1529                 video_unregister_device(&dev->radio_dev);
1530         if (video_is_registered(&dev->vbi_dev)) {
1531                 dev_info(dev->dev, "V4L2 device %s deregistered\n",
1532                         video_device_node_name(&dev->vbi_dev));
1533                 video_unregister_device(&dev->vbi_dev);
1534         }
1535         if (video_is_registered(&dev->vdev)) {
1536                 dev_info(dev->dev, "V4L2 device %s deregistered\n",
1537                         video_device_node_name(&dev->vdev));
1538
1539                 if (dev->board.has_417)
1540                         cx231xx_417_unregister(dev);
1541
1542                 video_unregister_device(&dev->vdev);
1543         }
1544         v4l2_ctrl_handler_free(&dev->ctrl_handler);
1545         v4l2_ctrl_handler_free(&dev->radio_ctrl_handler);
1546 }
1547
1548 /*
1549  * cx231xx_close()
1550  * stops streaming and deallocates all resources allocated by the v4l2
1551  * calls and ioctls
1552  */
1553 static int cx231xx_close(struct file *filp)
1554 {
1555         struct cx231xx *dev = video_drvdata(filp);
1556         struct video_device *vdev = video_devdata(filp);
1557
1558         _vb2_fop_release(filp, NULL);
1559
1560         if (--dev->users == 0) {
1561                 /* Save some power by putting tuner to sleep */
1562                 call_all(dev, tuner, standby);
1563
1564                 /* do this before setting alternate! */
1565                 if (dev->USE_ISO)
1566                         cx231xx_uninit_isoc(dev);
1567                 else
1568                         cx231xx_uninit_bulk(dev);
1569                 cx231xx_set_mode(dev, CX231XX_SUSPEND);
1570         }
1571
1572         /*
1573          * To workaround error number=-71 on EP0 for VideoGrabber,
1574          *       need exclude following.
1575          * FIXME: It is probably safe to remove most of these, as we're
1576          * now avoiding the alternate setting for INDEX_VANC
1577          */
1578         if (!dev->board.no_alt_vanc && vdev->vfl_type == VFL_TYPE_VBI) {
1579                 /* do this before setting alternate! */
1580                 cx231xx_uninit_vbi_isoc(dev);
1581
1582                 /* set alternate 0 */
1583                 if (!dev->vbi_or_sliced_cc_mode)
1584                         cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1585                 else
1586                         cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1587
1588                 wake_up_interruptible_nr(&dev->open, 1);
1589                 return 0;
1590         }
1591
1592         if (dev->users == 0) {
1593                 /* set alternate 0 */
1594                 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1595         }
1596
1597         wake_up_interruptible(&dev->open);
1598         return 0;
1599 }
1600
1601 static int cx231xx_v4l2_close(struct file *filp)
1602 {
1603         struct cx231xx *dev = video_drvdata(filp);
1604         int rc;
1605
1606         mutex_lock(&dev->lock);
1607         rc = cx231xx_close(filp);
1608         mutex_unlock(&dev->lock);
1609         return rc;
1610 }
1611
1612 static const struct v4l2_file_operations cx231xx_v4l_fops = {
1613         .owner   = THIS_MODULE,
1614         .open    = cx231xx_v4l2_open,
1615         .release = cx231xx_v4l2_close,
1616         .read    = vb2_fop_read,
1617         .poll    = vb2_fop_poll,
1618         .mmap    = vb2_fop_mmap,
1619         .unlocked_ioctl   = video_ioctl2,
1620 };
1621
1622 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1623         .vidioc_querycap               = cx231xx_querycap,
1624         .vidioc_enum_fmt_vid_cap       = vidioc_enum_fmt_vid_cap,
1625         .vidioc_g_fmt_vid_cap          = vidioc_g_fmt_vid_cap,
1626         .vidioc_try_fmt_vid_cap        = vidioc_try_fmt_vid_cap,
1627         .vidioc_s_fmt_vid_cap          = vidioc_s_fmt_vid_cap,
1628         .vidioc_g_fmt_vbi_cap          = vidioc_g_fmt_vbi_cap,
1629         .vidioc_try_fmt_vbi_cap        = vidioc_try_fmt_vbi_cap,
1630         .vidioc_s_fmt_vbi_cap          = vidioc_s_fmt_vbi_cap,
1631         .vidioc_g_pixelaspect          = vidioc_g_pixelaspect,
1632         .vidioc_g_selection            = vidioc_g_selection,
1633         .vidioc_reqbufs                = vb2_ioctl_reqbufs,
1634         .vidioc_querybuf               = vb2_ioctl_querybuf,
1635         .vidioc_qbuf                   = vb2_ioctl_qbuf,
1636         .vidioc_dqbuf                  = vb2_ioctl_dqbuf,
1637         .vidioc_s_std                  = vidioc_s_std,
1638         .vidioc_g_std                  = vidioc_g_std,
1639         .vidioc_enum_input             = cx231xx_enum_input,
1640         .vidioc_g_input                = cx231xx_g_input,
1641         .vidioc_s_input                = cx231xx_s_input,
1642         .vidioc_streamon               = vb2_ioctl_streamon,
1643         .vidioc_streamoff              = vb2_ioctl_streamoff,
1644         .vidioc_g_tuner                = cx231xx_g_tuner,
1645         .vidioc_s_tuner                = cx231xx_s_tuner,
1646         .vidioc_g_frequency            = cx231xx_g_frequency,
1647         .vidioc_s_frequency            = cx231xx_s_frequency,
1648 #ifdef CONFIG_VIDEO_ADV_DEBUG
1649         .vidioc_g_chip_info            = cx231xx_g_chip_info,
1650         .vidioc_g_register             = cx231xx_g_register,
1651         .vidioc_s_register             = cx231xx_s_register,
1652 #endif
1653         .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1654         .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1655 };
1656
1657 static struct video_device cx231xx_vbi_template;
1658
1659 static const struct video_device cx231xx_video_template = {
1660         .fops         = &cx231xx_v4l_fops,
1661         .release      = video_device_release_empty,
1662         .ioctl_ops    = &video_ioctl_ops,
1663         .tvnorms      = V4L2_STD_ALL,
1664 };
1665
1666 static const struct v4l2_file_operations radio_fops = {
1667         .owner   = THIS_MODULE,
1668         .open   = cx231xx_v4l2_open,
1669         .release = cx231xx_v4l2_close,
1670         .poll = v4l2_ctrl_poll,
1671         .unlocked_ioctl = video_ioctl2,
1672 };
1673
1674 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
1675         .vidioc_querycap    = cx231xx_querycap,
1676         .vidioc_g_tuner     = radio_g_tuner,
1677         .vidioc_s_tuner     = radio_s_tuner,
1678         .vidioc_g_frequency = cx231xx_g_frequency,
1679         .vidioc_s_frequency = cx231xx_s_frequency,
1680 #ifdef CONFIG_VIDEO_ADV_DEBUG
1681         .vidioc_g_chip_info = cx231xx_g_chip_info,
1682         .vidioc_g_register  = cx231xx_g_register,
1683         .vidioc_s_register  = cx231xx_s_register,
1684 #endif
1685         .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1686         .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1687 };
1688
1689 static struct video_device cx231xx_radio_template = {
1690         .name      = "cx231xx-radio",
1691         .fops      = &radio_fops,
1692         .ioctl_ops = &radio_ioctl_ops,
1693 };
1694
1695 /******************************** usb interface ******************************/
1696
1697 static void cx231xx_vdev_init(struct cx231xx *dev,
1698                 struct video_device *vfd,
1699                 const struct video_device *template,
1700                 const char *type_name)
1701 {
1702         *vfd = *template;
1703         vfd->v4l2_dev = &dev->v4l2_dev;
1704         vfd->release = video_device_release_empty;
1705         vfd->lock = &dev->lock;
1706
1707         snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
1708
1709         video_set_drvdata(vfd, dev);
1710         if (dev->tuner_type == TUNER_ABSENT) {
1711                 v4l2_disable_ioctl(vfd, VIDIOC_G_FREQUENCY);
1712                 v4l2_disable_ioctl(vfd, VIDIOC_S_FREQUENCY);
1713                 v4l2_disable_ioctl(vfd, VIDIOC_G_TUNER);
1714                 v4l2_disable_ioctl(vfd, VIDIOC_S_TUNER);
1715         }
1716 }
1717
1718 int cx231xx_register_analog_devices(struct cx231xx *dev)
1719 {
1720         struct vb2_queue *q;
1721         int ret;
1722
1723         dev_info(dev->dev, "v4l2 driver version %s\n", CX231XX_VERSION);
1724
1725         /* set default norm */
1726         dev->norm = V4L2_STD_PAL;
1727         dev->width = norm_maxw(dev);
1728         dev->height = norm_maxh(dev);
1729         dev->interlaced = 0;
1730
1731         /* Analog specific initialization */
1732         dev->format = &format[0];
1733
1734         /* Set the initial input */
1735         video_mux(dev, dev->video_input);
1736
1737         call_all(dev, video, s_std, dev->norm);
1738
1739         v4l2_ctrl_handler_init(&dev->ctrl_handler, 10);
1740         v4l2_ctrl_handler_init(&dev->radio_ctrl_handler, 5);
1741
1742         if (dev->sd_cx25840) {
1743                 v4l2_ctrl_add_handler(&dev->ctrl_handler,
1744                                 dev->sd_cx25840->ctrl_handler, NULL, true);
1745                 v4l2_ctrl_add_handler(&dev->radio_ctrl_handler,
1746                                 dev->sd_cx25840->ctrl_handler,
1747                                 v4l2_ctrl_radio_filter, true);
1748         }
1749
1750         if (dev->ctrl_handler.error)
1751                 return dev->ctrl_handler.error;
1752         if (dev->radio_ctrl_handler.error)
1753                 return dev->radio_ctrl_handler.error;
1754
1755         /* enable vbi capturing */
1756         /* write code here...  */
1757
1758         /* allocate and fill video video_device struct */
1759         cx231xx_vdev_init(dev, &dev->vdev, &cx231xx_video_template, "video");
1760 #if defined(CONFIG_MEDIA_CONTROLLER)
1761         dev->video_pad.flags = MEDIA_PAD_FL_SINK;
1762         ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad);
1763         if (ret < 0)
1764                 dev_err(dev->dev, "failed to initialize video media entity!\n");
1765 #endif
1766         dev->vdev.ctrl_handler = &dev->ctrl_handler;
1767
1768         q = &dev->vidq;
1769         q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1770         q->io_modes = VB2_USERPTR | VB2_MMAP | VB2_DMABUF | VB2_READ;
1771         q->drv_priv = dev;
1772         q->buf_struct_size = sizeof(struct cx231xx_buffer);
1773         q->ops = &cx231xx_video_qops;
1774         q->mem_ops = &vb2_vmalloc_memops;
1775         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1776         q->min_buffers_needed = 1;
1777         q->lock = &dev->lock;
1778         ret = vb2_queue_init(q);
1779         if (ret)
1780                 return ret;
1781         dev->vdev.queue = q;
1782         dev->vdev.device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1783                                 V4L2_CAP_VIDEO_CAPTURE;
1784         if (dev->tuner_type != TUNER_ABSENT)
1785                 dev->vdev.device_caps |= V4L2_CAP_TUNER;
1786
1787         /* register v4l2 video video_device */
1788         ret = video_register_device(&dev->vdev, VFL_TYPE_VIDEO,
1789                                     video_nr[dev->devno]);
1790         if (ret) {
1791                 dev_err(dev->dev,
1792                         "unable to register video device (error=%i).\n",
1793                         ret);
1794                 return ret;
1795         }
1796
1797         dev_info(dev->dev, "Registered video device %s [v4l2]\n",
1798                 video_device_node_name(&dev->vdev));
1799
1800         /* Initialize VBI template */
1801         cx231xx_vbi_template = cx231xx_video_template;
1802         strscpy(cx231xx_vbi_template.name, "cx231xx-vbi",
1803                 sizeof(cx231xx_vbi_template.name));
1804
1805         /* Allocate and fill vbi video_device struct */
1806         cx231xx_vdev_init(dev, &dev->vbi_dev, &cx231xx_vbi_template, "vbi");
1807
1808 #if defined(CONFIG_MEDIA_CONTROLLER)
1809         dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
1810         ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad);
1811         if (ret < 0)
1812                 dev_err(dev->dev, "failed to initialize vbi media entity!\n");
1813 #endif
1814         dev->vbi_dev.ctrl_handler = &dev->ctrl_handler;
1815
1816         q = &dev->vbiq;
1817         q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1818         q->io_modes = VB2_USERPTR | VB2_MMAP | VB2_DMABUF | VB2_READ;
1819         q->drv_priv = dev;
1820         q->buf_struct_size = sizeof(struct cx231xx_buffer);
1821         q->ops = &cx231xx_vbi_qops;
1822         q->mem_ops = &vb2_vmalloc_memops;
1823         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1824         q->min_buffers_needed = 1;
1825         q->lock = &dev->lock;
1826         ret = vb2_queue_init(q);
1827         if (ret)
1828                 return ret;
1829         dev->vbi_dev.queue = q;
1830         dev->vbi_dev.device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1831                                    V4L2_CAP_VBI_CAPTURE;
1832         if (dev->tuner_type != TUNER_ABSENT)
1833                 dev->vbi_dev.device_caps |= V4L2_CAP_TUNER;
1834
1835         /* register v4l2 vbi video_device */
1836         ret = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI,
1837                                     vbi_nr[dev->devno]);
1838         if (ret < 0) {
1839                 dev_err(dev->dev, "unable to register vbi device\n");
1840                 return ret;
1841         }
1842
1843         dev_info(dev->dev, "Registered VBI device %s\n",
1844                 video_device_node_name(&dev->vbi_dev));
1845
1846         if (cx231xx_boards[dev->model].radio.type == CX231XX_RADIO) {
1847                 cx231xx_vdev_init(dev, &dev->radio_dev,
1848                                 &cx231xx_radio_template, "radio");
1849                 dev->radio_dev.ctrl_handler = &dev->radio_ctrl_handler;
1850                 dev->radio_dev.device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
1851                 ret = video_register_device(&dev->radio_dev, VFL_TYPE_RADIO,
1852                                             radio_nr[dev->devno]);
1853                 if (ret < 0) {
1854                         dev_err(dev->dev,
1855                                 "can't register radio device\n");
1856                         return ret;
1857                 }
1858                 dev_info(dev->dev, "Registered radio device as %s\n",
1859                         video_device_node_name(&dev->radio_dev));
1860         }
1861
1862         return 0;
1863 }