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

   1 /*
   2    cx231xx-video.c - driver for Conexant Cx23100/101/102
   3                      USB video capture devices
   4
   5    Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
   6         Based on em28xx driver
   7         Based on cx23885 driver
   8         Based on cx88 driver
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 2 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  23  */
  24
  25 #include <linux/init.h>
  26 #include <linux/list.h>
  27 #include <linux/module.h>
  28 #include <linux/kernel.h>
  29 #include <linux/bitmap.h>
  30 #include <linux/usb.h>
  31 #include <linux/i2c.h>
  32 #include <linux/mm.h>
  33 #include <linux/mutex.h>
  34 #include <linux/slab.h>
  35
  36 #include <media/v4l2-common.h>
  37 #include <media/v4l2-ioctl.h>
  38 #include <media/v4l2-chip-ident.h>
  39 #include <media/msp3400.h>
  40 #include <media/tuner.h>
  41
  42 #include "dvb_frontend.h"
  43
  44 #include "cx231xx.h"
  45 #include "cx231xx-vbi.h"
  46
  47 #define CX231XX_VERSION "0.0.2"
  48
  49 #define DRIVER_AUTHOR   "Srinivasa Deevi <srinivasa.deevi@conexant.com>"
  50 #define DRIVER_DESC     "Conexant cx231xx based USB video device driver"
  51
  52 #define cx231xx_videodbg(fmt, arg...) do {\
  53         if (video_debug) \
  54                 printk(KERN_INFO "%s %s :"fmt, \
  55                          dev->name, __func__ , ##arg); } while (0)
  56
  57 static unsigned int isoc_debug;
  58 module_param(isoc_debug, int, 0644);
  59 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
  60
  61 #define cx231xx_isocdbg(fmt, arg...) \
  62 do {\
  63         if (isoc_debug) { \
  64                 printk(KERN_INFO "%s %s :"fmt, \
  65                          dev->name, __func__ , ##arg); \
  66         } \
  67   } while (0)
  68
  69 MODULE_AUTHOR(DRIVER_AUTHOR);
  70 MODULE_DESCRIPTION(DRIVER_DESC);
  71 MODULE_LICENSE("GPL");
  72 MODULE_VERSION(CX231XX_VERSION);
  73
  74 static unsigned int card[]     = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
  75 static unsigned int video_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
  76 static unsigned int vbi_nr[]   = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
  77 static unsigned int radio_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
  78
  79 module_param_array(card, int, NULL, 0444);
  80 module_param_array(video_nr, int, NULL, 0444);
  81 module_param_array(vbi_nr, int, NULL, 0444);
  82 module_param_array(radio_nr, int, NULL, 0444);
  83
  84 MODULE_PARM_DESC(card, "card type");
  85 MODULE_PARM_DESC(video_nr, "video device numbers");
  86 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
  87 MODULE_PARM_DESC(radio_nr, "radio device numbers");
  88
  89 static unsigned int video_debug;
  90 module_param(video_debug, int, 0644);
  91 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
  92
  93 /* supported video standards */
  94 static struct cx231xx_fmt format[] = {
  95         {
  96          .name = "16bpp YUY2, 4:2:2, packed",
  97          .fourcc = V4L2_PIX_FMT_YUYV,
  98          .depth = 16,
  99          .reg = 0,
 100          },
 101 };
 102
 103 /* supported controls */
 104 /* Common to all boards */
 105
 106 /* ------------------------------------------------------------------- */
 107
 108 static const struct v4l2_queryctrl no_ctl = {
 109         .name = "42",
 110         .flags = V4L2_CTRL_FLAG_DISABLED,
 111 };
 112
 113 static struct cx231xx_ctrl cx231xx_ctls[] = {
 114         /* --- video --- */
 115         {
 116                 .v = {
 117                         .id = V4L2_CID_BRIGHTNESS,
 118                         .name = "Brightness",
 119                         .minimum = 0x00,
 120                         .maximum = 0xff,
 121                         .step = 1,
 122                         .default_value = 0x7f,
 123                         .type = V4L2_CTRL_TYPE_INTEGER,
 124                 },
 125                 .off = 128,
 126                 .reg = LUMA_CTRL,
 127                 .mask = 0x00ff,
 128                 .shift = 0,
 129         }, {
 130                 .v = {
 131                         .id = V4L2_CID_CONTRAST,
 132                         .name = "Contrast",
 133                         .minimum = 0,
 134                         .maximum = 0xff,
 135                         .step = 1,
 136                         .default_value = 0x3f,
 137                         .type = V4L2_CTRL_TYPE_INTEGER,
 138                 },
 139                 .off = 0,
 140                 .reg = LUMA_CTRL,
 141                 .mask = 0xff00,
 142                 .shift = 8,
 143         }, {
 144                 .v = {
 145                         .id = V4L2_CID_HUE,
 146                         .name = "Hue",
 147                         .minimum = 0,
 148                         .maximum = 0xff,
 149                         .step = 1,
 150                         .default_value = 0x7f,
 151                         .type = V4L2_CTRL_TYPE_INTEGER,
 152                 },
 153                 .off = 128,
 154                 .reg = CHROMA_CTRL,
 155                 .mask = 0xff0000,
 156                 .shift = 16,
 157         }, {
 158         /* strictly, this only describes only U saturation.
 159         * V saturation is handled specially through code.
 160         */
 161                 .v = {
 162                         .id = V4L2_CID_SATURATION,
 163                         .name = "Saturation",
 164                         .minimum = 0,
 165                         .maximum = 0xff,
 166                         .step = 1,
 167                         .default_value = 0x7f,
 168                         .type = V4L2_CTRL_TYPE_INTEGER,
 169                 },
 170                 .off = 0,
 171                 .reg = CHROMA_CTRL,
 172                 .mask = 0x00ff,
 173                 .shift = 0,
 174         }, {
 175                 /* --- audio --- */
 176                 .v = {
 177                         .id = V4L2_CID_AUDIO_MUTE,
 178                         .name = "Mute",
 179                         .minimum = 0,
 180                         .maximum = 1,
 181                         .default_value = 1,
 182                         .type = V4L2_CTRL_TYPE_BOOLEAN,
 183                 },
 184                 .reg = PATH1_CTL1,
 185                 .mask = (0x1f << 24),
 186                 .shift = 24,
 187         }, {
 188                 .v = {
 189                         .id = V4L2_CID_AUDIO_VOLUME,
 190                         .name = "Volume",
 191                         .minimum = 0,
 192                         .maximum = 0x3f,
 193                         .step = 1,
 194                         .default_value = 0x3f,
 195                         .type = V4L2_CTRL_TYPE_INTEGER,
 196                 },
 197                 .reg = PATH1_VOL_CTL,
 198                 .mask = 0xff,
 199                 .shift = 0,
 200         }
 201 };
 202 static const int CX231XX_CTLS = ARRAY_SIZE(cx231xx_ctls);
 203
 204 static const u32 cx231xx_user_ctrls[] = {
 205         V4L2_CID_USER_CLASS,
 206         V4L2_CID_BRIGHTNESS,
 207         V4L2_CID_CONTRAST,
 208         V4L2_CID_SATURATION,
 209         V4L2_CID_HUE,
 210         V4L2_CID_AUDIO_VOLUME,
 211 #if 0
 212         V4L2_CID_AUDIO_BALANCE,
 213 #endif
 214         V4L2_CID_AUDIO_MUTE,
 215         0
 216 };
 217
 218 static const u32 *ctrl_classes[] = {
 219         cx231xx_user_ctrls,
 220         NULL
 221 };
 222
 223 /* ------------------------------------------------------------------
 224         Video buffer and parser functions
 225    ------------------------------------------------------------------*/
 226
 227 /*
 228  * Announces that a buffer were filled and request the next
 229  */
 230 static inline void buffer_filled(struct cx231xx *dev,
 231                                  struct cx231xx_dmaqueue *dma_q,
 232                                  struct cx231xx_buffer *buf)
 233 {
 234         /* Advice that buffer was filled */
 235         cx231xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
 236         buf->vb.state = VIDEOBUF_DONE;
 237         buf->vb.field_count++;
 238         do_gettimeofday(&buf->vb.ts);
 239
 240         if (dev->USE_ISO)
 241                 dev->video_mode.isoc_ctl.buf = NULL;
 242         else
 243                 dev->video_mode.bulk_ctl.buf = NULL;
 244
 245         list_del(&buf->vb.queue);
 246         wake_up(&buf->vb.done);
 247 }
 248
 249 static inline void print_err_status(struct cx231xx *dev, int packet, int status)
 250 {
 251         char *errmsg = "Unknown";
 252
 253         switch (status) {
 254         case -ENOENT:
 255                 errmsg = "unlinked synchronuously";
 256                 break;
 257         case -ECONNRESET:
 258                 errmsg = "unlinked asynchronuously";
 259                 break;
 260         case -ENOSR:
 261                 errmsg = "Buffer error (overrun)";
 262                 break;
 263         case -EPIPE:
 264                 errmsg = "Stalled (device not responding)";
 265                 break;
 266         case -EOVERFLOW:
 267                 errmsg = "Babble (bad cable?)";
 268                 break;
 269         case -EPROTO:
 270                 errmsg = "Bit-stuff error (bad cable?)";
 271                 break;
 272         case -EILSEQ:
 273                 errmsg = "CRC/Timeout (could be anything)";
 274                 break;
 275         case -ETIME:
 276                 errmsg = "Device does not respond";
 277                 break;
 278         }
 279         if (packet < 0) {
 280                 cx231xx_isocdbg("URB status %d [%s].\n", status, errmsg);
 281         } else {
 282                 cx231xx_isocdbg("URB packet %d, status %d [%s].\n",
 283                                 packet, status, errmsg);
 284         }
 285 }
 286
 287 /*
 288  * video-buf generic routine to get the next available buffer
 289  */
 290 static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q,
 291                                 struct cx231xx_buffer **buf)
 292 {
 293         struct cx231xx_video_mode *vmode =
 294             container_of(dma_q, struct cx231xx_video_mode, vidq);
 295         struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 296
 297         char *outp;
 298
 299         if (list_empty(&dma_q->active)) {
 300                 cx231xx_isocdbg("No active queue to serve\n");
 301                 if (dev->USE_ISO)
 302                         dev->video_mode.isoc_ctl.buf = NULL;
 303                 else
 304                         dev->video_mode.bulk_ctl.buf = NULL;
 305                 *buf = NULL;
 306                 return;
 307         }
 308
 309         /* Get the next buffer */
 310         *buf = list_entry(dma_q->active.next, struct cx231xx_buffer, vb.queue);
 311
 312         /* Cleans up buffer - Useful for testing for frame/URB loss */
 313         outp = videobuf_to_vmalloc(&(*buf)->vb);
 314         memset(outp, 0, (*buf)->vb.size);
 315
 316         if (dev->USE_ISO)
 317                 dev->video_mode.isoc_ctl.buf = *buf;
 318         else
 319                 dev->video_mode.bulk_ctl.buf = *buf;
 320
 321         return;
 322 }
 323
 324 /*
 325  * Controls the isoc copy of each urb packet
 326  */
 327 static inline int cx231xx_isoc_copy(struct cx231xx *dev, struct urb *urb)
 328 {
 329         struct cx231xx_dmaqueue *dma_q = urb->context;
 330         int i, rc = 1;
 331         unsigned char *p_buffer;
 332         u32 bytes_parsed = 0, buffer_size = 0;
 333         u8 sav_eav = 0;
 334
 335         if (!dev)
 336                 return 0;
 337
 338         if (dev->state & DEV_DISCONNECTED)
 339                 return 0;
 340
 341         if (urb->status < 0) {
 342                 print_err_status(dev, -1, urb->status);
 343                 if (urb->status == -ENOENT)
 344                         return 0;
 345         }
 346
 347         for (i = 0; i < urb->number_of_packets; i++) {
 348                 int status = urb->iso_frame_desc[i].status;
 349
 350                 if (status < 0) {
 351                         print_err_status(dev, i, status);
 352                         if (urb->iso_frame_desc[i].status != -EPROTO)
 353                                 continue;
 354                 }
 355
 356                 if (urb->iso_frame_desc[i].actual_length <= 0) {
 357                         /* cx231xx_isocdbg("packet %d is empty",i); - spammy */
 358                         continue;
 359                 }
 360                 if (urb->iso_frame_desc[i].actual_length >
 361                     dev->video_mode.max_pkt_size) {
 362                         cx231xx_isocdbg("packet bigger than packet size");
 363                         continue;
 364                 }
 365
 366                 /*  get buffer pointer and length */
 367                 p_buffer = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
 368                 buffer_size = urb->iso_frame_desc[i].actual_length;
 369                 bytes_parsed = 0;
 370
 371                 if (dma_q->is_partial_line) {
 372                         /* Handle the case of a partial line */
 373                         sav_eav = dma_q->last_sav;
 374                 } else {
 375                         /* Check for a SAV/EAV overlapping
 376                                 the buffer boundary */
 377                         sav_eav =
 378                             cx231xx_find_boundary_SAV_EAV(p_buffer,
 379                                                           dma_q->partial_buf,
 380                                                           &bytes_parsed);
 381                 }
 382
 383                 sav_eav &= 0xF0;
 384                 /* Get the first line if we have some portion of an SAV/EAV from
 385                    the last buffer or a partial line  */
 386                 if (sav_eav) {
 387                         bytes_parsed += cx231xx_get_video_line(dev, dma_q,
 388                                 sav_eav,        /* SAV/EAV */
 389                                 p_buffer + bytes_parsed,        /* p_buffer */
 390                                 buffer_size - bytes_parsed);/* buf size */
 391                 }
 392
 393                 /* Now parse data that is completely in this buffer */
 394                 /* dma_q->is_partial_line = 0;  */
 395
 396                 while (bytes_parsed < buffer_size) {
 397                         u32 bytes_used = 0;
 398
 399                         sav_eav = cx231xx_find_next_SAV_EAV(
 400                                 p_buffer + bytes_parsed,        /* p_buffer */
 401                                 buffer_size - bytes_parsed,     /* buf size */
 402                                 &bytes_used);/* bytes used to get SAV/EAV */
 403
 404                         bytes_parsed += bytes_used;
 405
 406                         sav_eav &= 0xF0;
 407                         if (sav_eav && (bytes_parsed < buffer_size)) {
 408                                 bytes_parsed += cx231xx_get_video_line(dev,
 409                                         dma_q, sav_eav, /* SAV/EAV */
 410                                         p_buffer + bytes_parsed,/* p_buffer */
 411                                         buffer_size - bytes_parsed);/*buf size*/
 412                         }
 413                 }
 414
 415                 /* Save the last four bytes of the buffer so we can check the
 416                    buffer boundary condition next time */
 417                 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
 418                 bytes_parsed = 0;
 419
 420         }
 421         return rc;
 422 }
 423
 424 static inline int cx231xx_bulk_copy(struct cx231xx *dev, struct urb *urb)
 425 {
 426         struct cx231xx_dmaqueue *dma_q = urb->context;
 427         int rc = 1;
 428         unsigned char *p_buffer;
 429         u32 bytes_parsed = 0, buffer_size = 0;
 430         u8 sav_eav = 0;
 431
 432         if (!dev)
 433                 return 0;
 434
 435         if (dev->state & DEV_DISCONNECTED)
 436                 return 0;
 437
 438         if (urb->status < 0) {
 439                 print_err_status(dev, -1, urb->status);
 440                 if (urb->status == -ENOENT)
 441                         return 0;
 442         }
 443
 444         if (1) {
 445
 446                 /*  get buffer pointer and length */
 447                 p_buffer = urb->transfer_buffer;
 448                 buffer_size = urb->actual_length;
 449                 bytes_parsed = 0;
 450
 451                 if (dma_q->is_partial_line) {
 452                         /* Handle the case of a partial line */
 453                         sav_eav = dma_q->last_sav;
 454                 } else {
 455                         /* Check for a SAV/EAV overlapping
 456                                 the buffer boundary */
 457                         sav_eav =
 458                             cx231xx_find_boundary_SAV_EAV(p_buffer,
 459                                                           dma_q->partial_buf,
 460                                                           &bytes_parsed);
 461                 }
 462
 463                 sav_eav &= 0xF0;
 464                 /* Get the first line if we have some portion of an SAV/EAV from
 465                    the last buffer or a partial line  */
 466                 if (sav_eav) {
 467                         bytes_parsed += cx231xx_get_video_line(dev, dma_q,
 468                                 sav_eav,        /* SAV/EAV */
 469                                 p_buffer + bytes_parsed,        /* p_buffer */
 470                                 buffer_size - bytes_parsed);/* buf size */
 471                 }
 472
 473                 /* Now parse data that is completely in this buffer */
 474                 /* dma_q->is_partial_line = 0;  */
 475
 476                 while (bytes_parsed < buffer_size) {
 477                         u32 bytes_used = 0;
 478
 479                         sav_eav = cx231xx_find_next_SAV_EAV(
 480                                 p_buffer + bytes_parsed,        /* p_buffer */
 481                                 buffer_size - bytes_parsed,     /* buf size */
 482                                 &bytes_used);/* bytes used to get SAV/EAV */
 483
 484                         bytes_parsed += bytes_used;
 485
 486                         sav_eav &= 0xF0;
 487                         if (sav_eav && (bytes_parsed < buffer_size)) {
 488                                 bytes_parsed += cx231xx_get_video_line(dev,
 489                                         dma_q, sav_eav, /* SAV/EAV */
 490                                         p_buffer + bytes_parsed,/* p_buffer */
 491                                         buffer_size - bytes_parsed);/*buf size*/
 492                         }
 493                 }
 494
 495                 /* Save the last four bytes of the buffer so we can check the
 496                    buffer boundary condition next time */
 497                 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
 498                 bytes_parsed = 0;
 499
 500         }
 501         return rc;
 502 }
 503
 504
 505 u8 cx231xx_find_boundary_SAV_EAV(u8 *p_buffer, u8 *partial_buf,
 506                                  u32 *p_bytes_used)
 507 {
 508         u32 bytes_used;
 509         u8 boundary_bytes[8];
 510         u8 sav_eav = 0;
 511
 512         *p_bytes_used = 0;
 513
 514         /* Create an array of the last 4 bytes of the last buffer and the first
 515            4 bytes of the current buffer. */
 516
 517         memcpy(boundary_bytes, partial_buf, 4);
 518         memcpy(boundary_bytes + 4, p_buffer, 4);
 519
 520         /* Check for the SAV/EAV in the boundary buffer */
 521         sav_eav = cx231xx_find_next_SAV_EAV((u8 *)&boundary_bytes, 8,
 522                                             &bytes_used);
 523
 524         if (sav_eav) {
 525                 /* found a boundary SAV/EAV.  Updates the bytes used to reflect
 526                    only those used in the new buffer */
 527                 *p_bytes_used = bytes_used - 4;
 528         }
 529
 530         return sav_eav;
 531 }
 532
 533 u8 cx231xx_find_next_SAV_EAV(u8 *p_buffer, u32 buffer_size, u32 *p_bytes_used)
 534 {
 535         u32 i;
 536         u8 sav_eav = 0;
 537
 538         /*
 539          * Don't search if the buffer size is less than 4.  It causes a page
 540          * fault since buffer_size - 4 evaluates to a large number in that
 541          * case.
 542          */
 543         if (buffer_size < 4) {
 544                 *p_bytes_used = buffer_size;
 545                 return 0;
 546         }
 547
 548         for (i = 0; i < (buffer_size - 3); i++) {
 549
 550                 if ((p_buffer[i] == 0xFF) &&
 551                     (p_buffer[i + 1] == 0x00) && (p_buffer[i + 2] == 0x00)) {
 552
 553                         *p_bytes_used = i + 4;
 554                         sav_eav = p_buffer[i + 3];
 555                         return sav_eav;
 556                 }
 557         }
 558
 559         *p_bytes_used = buffer_size;
 560         return 0;
 561 }
 562
 563 u32 cx231xx_get_video_line(struct cx231xx *dev,
 564                            struct cx231xx_dmaqueue *dma_q, u8 sav_eav,
 565                            u8 *p_buffer, u32 buffer_size)
 566 {
 567         u32 bytes_copied = 0;
 568         int current_field = -1;
 569
 570         switch (sav_eav) {
 571         case SAV_ACTIVE_VIDEO_FIELD1:
 572                 /* looking for skipped line which occurred in PAL 720x480 mode.
 573                    In this case, there will be no active data contained
 574                    between the SAV and EAV */
 575                 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
 576                     (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
 577                     ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
 578                      (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
 579                      (p_buffer[3] == EAV_VBLANK_FIELD1) ||
 580                      (p_buffer[3] == EAV_VBLANK_FIELD2)))
 581                         return bytes_copied;
 582                 current_field = 1;
 583                 break;
 584
 585         case SAV_ACTIVE_VIDEO_FIELD2:
 586                 /* looking for skipped line which occurred in PAL 720x480 mode.
 587                    In this case, there will be no active data contained between
 588                    the SAV and EAV */
 589                 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
 590                     (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
 591                     ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
 592                      (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
 593                      (p_buffer[3] == EAV_VBLANK_FIELD1)       ||
 594                      (p_buffer[3] == EAV_VBLANK_FIELD2)))
 595                         return bytes_copied;
 596                 current_field = 2;
 597                 break;
 598         }
 599
 600         dma_q->last_sav = sav_eav;
 601
 602         bytes_copied = cx231xx_copy_video_line(dev, dma_q, p_buffer,
 603                                                buffer_size, current_field);
 604
 605         return bytes_copied;
 606 }
 607
 608 u32 cx231xx_copy_video_line(struct cx231xx *dev,
 609                             struct cx231xx_dmaqueue *dma_q, u8 *p_line,
 610                             u32 length, int field_number)
 611 {
 612         u32 bytes_to_copy;
 613         struct cx231xx_buffer *buf;
 614         u32 _line_size = dev->width * 2;
 615
 616         if (dma_q->current_field != field_number)
 617                 cx231xx_reset_video_buffer(dev, dma_q);
 618
 619         /* get the buffer pointer */
 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         /* Remember the field number for next time */
 626         dma_q->current_field = field_number;
 627
 628         bytes_to_copy = dma_q->bytes_left_in_line;
 629         if (bytes_to_copy > length)
 630                 bytes_to_copy = length;
 631
 632         if (dma_q->lines_completed >= dma_q->lines_per_field) {
 633                 dma_q->bytes_left_in_line -= bytes_to_copy;
 634                 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ?
 635                                           0 : 1;
 636                 return 0;
 637         }
 638
 639         dma_q->is_partial_line = 1;
 640
 641         /* If we don't have a buffer, just return the number of bytes we would
 642            have copied if we had a buffer. */
 643         if (!buf) {
 644                 dma_q->bytes_left_in_line -= bytes_to_copy;
 645                 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0)
 646                                          ? 0 : 1;
 647                 return bytes_to_copy;
 648         }
 649
 650         /* copy the data to video buffer */
 651         cx231xx_do_copy(dev, dma_q, p_line, bytes_to_copy);
 652
 653         dma_q->pos += bytes_to_copy;
 654         dma_q->bytes_left_in_line -= bytes_to_copy;
 655
 656         if (dma_q->bytes_left_in_line == 0) {
 657                 dma_q->bytes_left_in_line = _line_size;
 658                 dma_q->lines_completed++;
 659                 dma_q->is_partial_line = 0;
 660
 661                 if (cx231xx_is_buffer_done(dev, dma_q) && buf) {
 662                         buffer_filled(dev, dma_q, buf);
 663
 664                         dma_q->pos = 0;
 665                         buf = NULL;
 666                         dma_q->lines_completed = 0;
 667                 }
 668         }
 669
 670         return bytes_to_copy;
 671 }
 672
 673 void cx231xx_reset_video_buffer(struct cx231xx *dev,
 674                                 struct cx231xx_dmaqueue *dma_q)
 675 {
 676         struct cx231xx_buffer *buf;
 677
 678         /* handle the switch from field 1 to field 2 */
 679         if (dma_q->current_field == 1) {
 680                 if (dma_q->lines_completed >= dma_q->lines_per_field)
 681                         dma_q->field1_done = 1;
 682                 else
 683                         dma_q->field1_done = 0;
 684         }
 685
 686         if (dev->USE_ISO)
 687                 buf = dev->video_mode.isoc_ctl.buf;
 688         else
 689                 buf = dev->video_mode.bulk_ctl.buf;
 690
 691         if (buf == NULL) {
 692                 /* first try to get the buffer */
 693                 get_next_buf(dma_q, &buf);
 694
 695                 dma_q->pos = 0;
 696                 dma_q->field1_done = 0;
 697                 dma_q->current_field = -1;
 698         }
 699
 700         /* reset the counters */
 701         dma_q->bytes_left_in_line = dev->width << 1;
 702         dma_q->lines_completed = 0;
 703 }
 704
 705 int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
 706                     u8 *p_buffer, u32 bytes_to_copy)
 707 {
 708         u8 *p_out_buffer = NULL;
 709         u32 current_line_bytes_copied = 0;
 710         struct cx231xx_buffer *buf;
 711         u32 _line_size = dev->width << 1;
 712         void *startwrite;
 713         int offset, lencopy;
 714
 715         if (dev->USE_ISO)
 716                 buf = dev->video_mode.isoc_ctl.buf;
 717         else
 718                 buf = dev->video_mode.bulk_ctl.buf;
 719
 720         if (buf == NULL)
 721                 return -1;
 722
 723         p_out_buffer = videobuf_to_vmalloc(&buf->vb);
 724
 725         current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line;
 726
 727         /* Offset field 2 one line from the top of the buffer */
 728         offset = (dma_q->current_field == 1) ? 0 : _line_size;
 729
 730         /* Offset for field 2 */
 731         startwrite = p_out_buffer + offset;
 732
 733         /* lines already completed in the current field */
 734         startwrite += (dma_q->lines_completed * _line_size * 2);
 735
 736         /* bytes already completed in the current line */
 737         startwrite += current_line_bytes_copied;
 738
 739         lencopy = dma_q->bytes_left_in_line > bytes_to_copy ?
 740                   bytes_to_copy : dma_q->bytes_left_in_line;
 741
 742         if ((u8 *)(startwrite + lencopy) > (u8 *)(p_out_buffer + buf->vb.size))
 743                 return 0;
 744
 745         /* The below copies the UYVY data straight into video buffer */
 746         cx231xx_swab((u16 *) p_buffer, (u16 *) startwrite, (u16) lencopy);
 747
 748         return 0;
 749 }
 750
 751 void cx231xx_swab(u16 *from, u16 *to, u16 len)
 752 {
 753         u16 i;
 754
 755         if (len <= 0)
 756                 return;
 757
 758         for (i = 0; i < len / 2; i++)
 759                 to[i] = (from[i] << 8) | (from[i] >> 8);
 760 }
 761
 762 u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q)
 763 {
 764         u8 buffer_complete = 0;
 765
 766         /* Dual field stream */
 767         buffer_complete = ((dma_q->current_field == 2) &&
 768                            (dma_q->lines_completed >= dma_q->lines_per_field) &&
 769                             dma_q->field1_done);
 770
 771         return buffer_complete;
 772 }
 773
 774 /* ------------------------------------------------------------------
 775         Videobuf operations
 776    ------------------------------------------------------------------*/
 777
 778 static int
 779 buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
 780 {
 781         struct cx231xx_fh *fh = vq->priv_data;
 782         struct cx231xx *dev = fh->dev;
 783
 784         *size = (fh->dev->width * fh->dev->height * dev->format->depth + 7)>>3;
 785         if (0 == *count)
 786                 *count = CX231XX_DEF_BUF;
 787
 788         if (*count < CX231XX_MIN_BUF)
 789                 *count = CX231XX_MIN_BUF;
 790
 791         return 0;
 792 }
 793
 794 /* This is called *without* dev->slock held; please keep it that way */
 795 static void free_buffer(struct videobuf_queue *vq, struct cx231xx_buffer *buf)
 796 {
 797         struct cx231xx_fh *fh = vq->priv_data;
 798         struct cx231xx *dev = fh->dev;
 799         unsigned long flags = 0;
 800
 801         if (in_interrupt())
 802                 BUG();
 803
 804         /* We used to wait for the buffer to finish here, but this didn't work
 805            because, as we were keeping the state as VIDEOBUF_QUEUED,
 806            videobuf_queue_cancel marked it as finished for us.
 807            (Also, it could wedge forever if the hardware was misconfigured.)
 808
 809            This should be safe; by the time we get here, the buffer isn't
 810            queued anymore. If we ever start marking the buffers as
 811            VIDEOBUF_ACTIVE, it won't be, though.
 812          */
 813         spin_lock_irqsave(&dev->video_mode.slock, flags);
 814         if (dev->USE_ISO) {
 815                 if (dev->video_mode.isoc_ctl.buf == buf)
 816                         dev->video_mode.isoc_ctl.buf = NULL;
 817         } else {
 818                 if (dev->video_mode.bulk_ctl.buf == buf)
 819                         dev->video_mode.bulk_ctl.buf = NULL;
 820         }
 821         spin_unlock_irqrestore(&dev->video_mode.slock, flags);
 822
 823         videobuf_vmalloc_free(&buf->vb);
 824         buf->vb.state = VIDEOBUF_NEEDS_INIT;
 825 }
 826
 827 static int
 828 buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
 829                enum v4l2_field field)
 830 {
 831         struct cx231xx_fh *fh = vq->priv_data;
 832         struct cx231xx_buffer *buf =
 833             container_of(vb, struct cx231xx_buffer, vb);
 834         struct cx231xx *dev = fh->dev;
 835         int rc = 0, urb_init = 0;
 836
 837         /* The only currently supported format is 16 bits/pixel */
 838         buf->vb.size = (fh->dev->width * fh->dev->height * dev->format->depth
 839                         + 7) >> 3;
 840         if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
 841                 return -EINVAL;
 842
 843         buf->vb.width = dev->width;
 844         buf->vb.height = dev->height;
 845         buf->vb.field = field;
 846
 847         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
 848                 rc = videobuf_iolock(vq, &buf->vb, NULL);
 849                 if (rc < 0)
 850                         goto fail;
 851         }
 852
 853         if (dev->USE_ISO) {
 854                 if (!dev->video_mode.isoc_ctl.num_bufs)
 855                         urb_init = 1;
 856         } else {
 857                 if (!dev->video_mode.bulk_ctl.num_bufs)
 858                         urb_init = 1;
 859         }
 860         /*cx231xx_info("urb_init=%d dev->video_mode.max_pkt_size=%d\n",
 861                 urb_init, dev->video_mode.max_pkt_size);*/
 862         if (urb_init) {
 863                 dev->mode_tv = 0;
 864                 if (dev->USE_ISO)
 865                         rc = cx231xx_init_isoc(dev, CX231XX_NUM_PACKETS,
 866                                        CX231XX_NUM_BUFS,
 867                                        dev->video_mode.max_pkt_size,
 868                                        cx231xx_isoc_copy);
 869                 else
 870                         rc = cx231xx_init_bulk(dev, CX231XX_NUM_PACKETS,
 871                                        CX231XX_NUM_BUFS,
 872                                        dev->video_mode.max_pkt_size,
 873                                        cx231xx_bulk_copy);
 874                 if (rc < 0)
 875                         goto fail;
 876         }
 877
 878         buf->vb.state = VIDEOBUF_PREPARED;
 879         return 0;
 880
 881 fail:
 882         free_buffer(vq, buf);
 883         return rc;
 884 }
 885
 886 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 887 {
 888         struct cx231xx_buffer *buf =
 889             container_of(vb, struct cx231xx_buffer, vb);
 890         struct cx231xx_fh *fh = vq->priv_data;
 891         struct cx231xx *dev = fh->dev;
 892         struct cx231xx_dmaqueue *vidq = &dev->video_mode.vidq;
 893
 894         buf->vb.state = VIDEOBUF_QUEUED;
 895         list_add_tail(&buf->vb.queue, &vidq->active);
 896
 897 }
 898
 899 static void buffer_release(struct videobuf_queue *vq,
 900                            struct videobuf_buffer *vb)
 901 {
 902         struct cx231xx_buffer *buf =
 903             container_of(vb, struct cx231xx_buffer, vb);
 904         struct cx231xx_fh *fh = vq->priv_data;
 905         struct cx231xx *dev = (struct cx231xx *)fh->dev;
 906
 907         cx231xx_isocdbg("cx231xx: called buffer_release\n");
 908
 909         free_buffer(vq, buf);
 910 }
 911
 912 static struct videobuf_queue_ops cx231xx_video_qops = {
 913         .buf_setup = buffer_setup,
 914         .buf_prepare = buffer_prepare,
 915         .buf_queue = buffer_queue,
 916         .buf_release = buffer_release,
 917 };
 918
 919 /*********************  v4l2 interface  **************************************/
 920
 921 void video_mux(struct cx231xx *dev, int index)
 922 {
 923         dev->video_input = index;
 924         dev->ctl_ainput = INPUT(index)->amux;
 925
 926         cx231xx_set_video_input_mux(dev, index);
 927
 928         cx25840_call(dev, video, s_routing, INPUT(index)->vmux, 0, 0);
 929
 930         cx231xx_set_audio_input(dev, dev->ctl_ainput);
 931
 932         cx231xx_info("video_mux : %d\n", index);
 933
 934         /* do mode control overrides if required */
 935         cx231xx_do_mode_ctrl_overrides(dev);
 936 }
 937
 938 /* Usage lock check functions */
 939 static int res_get(struct cx231xx_fh *fh)
 940 {
 941         struct cx231xx *dev = fh->dev;
 942         int rc = 0;
 943
 944         /* This instance already has stream_on */
 945         if (fh->stream_on)
 946                 return rc;
 947
 948         if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 949                 if (dev->stream_on)
 950                         return -EBUSY;
 951                 dev->stream_on = 1;
 952         } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
 953                 if (dev->vbi_stream_on)
 954                         return -EBUSY;
 955                 dev->vbi_stream_on = 1;
 956         } else
 957                 return -EINVAL;
 958
 959         fh->stream_on = 1;
 960
 961         return rc;
 962 }
 963
 964 static int res_check(struct cx231xx_fh *fh)
 965 {
 966         return fh->stream_on;
 967 }
 968
 969 static void res_free(struct cx231xx_fh *fh)
 970 {
 971         struct cx231xx *dev = fh->dev;
 972
 973         fh->stream_on = 0;
 974
 975         if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 976                 dev->stream_on = 0;
 977         if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
 978                 dev->vbi_stream_on = 0;
 979 }
 980
 981 static int check_dev(struct cx231xx *dev)
 982 {
 983         if (dev->state & DEV_DISCONNECTED) {
 984                 cx231xx_errdev("v4l2 ioctl: device not present\n");
 985                 return -ENODEV;
 986         }
 987         return 0;
 988 }
 989
 990 /* ------------------------------------------------------------------
 991         IOCTL vidioc handling
 992    ------------------------------------------------------------------*/
 993
 994 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 995                                 struct v4l2_format *f)
 996 {
 997         struct cx231xx_fh *fh = priv;
 998         struct cx231xx *dev = fh->dev;
 999
1000         f->fmt.pix.width = dev->width;
1001         f->fmt.pix.height = dev->height;
1002         f->fmt.pix.pixelformat = dev->format->fourcc;
1003         f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3;
1004         f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height;
1005         f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1006
1007         f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1008
1009         return 0;
1010 }
1011
1012 static struct cx231xx_fmt *format_by_fourcc(unsigned int fourcc)
1013 {
1014         unsigned int i;
1015
1016         for (i = 0; i < ARRAY_SIZE(format); i++)
1017                 if (format[i].fourcc == fourcc)
1018                         return &format[i];
1019
1020         return NULL;
1021 }
1022
1023 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1024                                   struct v4l2_format *f)
1025 {
1026         struct cx231xx_fh *fh = priv;
1027         struct cx231xx *dev = fh->dev;
1028         unsigned int width = f->fmt.pix.width;
1029         unsigned int height = f->fmt.pix.height;
1030         unsigned int maxw = norm_maxw(dev);
1031         unsigned int maxh = norm_maxh(dev);
1032         struct cx231xx_fmt *fmt;
1033
1034         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1035         if (!fmt) {
1036                 cx231xx_videodbg("Fourcc format (%08x) invalid.\n",
1037                                  f->fmt.pix.pixelformat);
1038                 return -EINVAL;
1039         }
1040
1041         /* width must even because of the YUYV format
1042            height must be even because of interlacing */
1043         v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh, 1, 0);
1044
1045         f->fmt.pix.width = width;
1046         f->fmt.pix.height = height;
1047         f->fmt.pix.pixelformat = fmt->fourcc;
1048         f->fmt.pix.bytesperline = (dev->width * fmt->depth + 7) >> 3;
1049         f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height;
1050         f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1051         f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1052
1053         return 0;
1054 }
1055
1056 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1057                                 struct v4l2_format *f)
1058 {
1059         struct cx231xx_fh *fh = priv;
1060         struct cx231xx *dev = fh->dev;
1061         int rc;
1062         struct cx231xx_fmt *fmt;
1063         struct v4l2_mbus_framefmt mbus_fmt;
1064
1065         rc = check_dev(dev);
1066         if (rc < 0)
1067                 return rc;
1068
1069         vidioc_try_fmt_vid_cap(file, priv, f);
1070
1071         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1072         if (!fmt)
1073                 return -EINVAL;
1074
1075         if (videobuf_queue_is_busy(&fh->vb_vidq)) {
1076                 cx231xx_errdev("%s queue busy\n", __func__);
1077                 return -EBUSY;
1078         }
1079
1080         if (dev->stream_on && !fh->stream_on) {
1081                 cx231xx_errdev("%s device in use by another fh\n", __func__);
1082                 return -EBUSY;
1083         }
1084
1085         /* set new image size */
1086         dev->width = f->fmt.pix.width;
1087         dev->height = f->fmt.pix.height;
1088         dev->format = fmt;
1089
1090         v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
1091         call_all(dev, video, s_mbus_fmt, &mbus_fmt);
1092         v4l2_fill_pix_format(&f->fmt.pix, &mbus_fmt);
1093
1094         return rc;
1095 }
1096
1097 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
1098 {
1099         struct cx231xx_fh *fh = priv;
1100         struct cx231xx *dev = fh->dev;
1101
1102         *id = dev->norm;
1103         return 0;
1104 }
1105
1106 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm)
1107 {
1108         struct cx231xx_fh *fh = priv;
1109         struct cx231xx *dev = fh->dev;
1110         struct v4l2_mbus_framefmt mbus_fmt;
1111         struct v4l2_format f;
1112         int rc;
1113
1114         rc = check_dev(dev);
1115         if (rc < 0)
1116                 return rc;
1117
1118         cx231xx_info("vidioc_s_std : 0x%x\n", (unsigned int)*norm);
1119
1120         dev->norm = *norm;
1121
1122         /* Adjusts width/height, if needed */
1123         f.fmt.pix.width = dev->width;
1124         f.fmt.pix.height = dev->height;
1125         vidioc_try_fmt_vid_cap(file, priv, &f);
1126
1127         call_all(dev, core, s_std, dev->norm);
1128
1129         /* We need to reset basic properties in the decoder related to
1130            resolution (since a standard change effects things like the number
1131            of lines in VACT, etc) */
1132         v4l2_fill_mbus_format(&mbus_fmt, &f.fmt.pix, V4L2_MBUS_FMT_FIXED);
1133         call_all(dev, video, s_mbus_fmt, &mbus_fmt);
1134         v4l2_fill_pix_format(&f.fmt.pix, &mbus_fmt);
1135
1136         /* set new image size */
1137         dev->width = f.fmt.pix.width;
1138         dev->height = f.fmt.pix.height;
1139
1140         /* do mode control overrides */
1141         cx231xx_do_mode_ctrl_overrides(dev);
1142
1143         return 0;
1144 }
1145
1146 static const char *iname[] = {
1147         [CX231XX_VMUX_COMPOSITE1] = "Composite1",
1148         [CX231XX_VMUX_SVIDEO]     = "S-Video",
1149         [CX231XX_VMUX_TELEVISION] = "Television",
1150         [CX231XX_VMUX_CABLE]      = "Cable TV",
1151         [CX231XX_VMUX_DVB]        = "DVB",
1152         [CX231XX_VMUX_DEBUG]      = "for debug only",
1153 };
1154
1155 static int vidioc_enum_input(struct file *file, void *priv,
1156                              struct v4l2_input *i)
1157 {
1158         struct cx231xx_fh *fh = priv;
1159         struct cx231xx *dev = fh->dev;
1160         u32 gen_stat;
1161         unsigned int ret, n;
1162
1163         n = i->index;
1164         if (n >= MAX_CX231XX_INPUT)
1165                 return -EINVAL;
1166         if (0 == INPUT(n)->type)
1167                 return -EINVAL;
1168
1169         i->index = n;
1170         i->type = V4L2_INPUT_TYPE_CAMERA;
1171
1172         strcpy(i->name, iname[INPUT(n)->type]);
1173
1174         if ((CX231XX_VMUX_TELEVISION == INPUT(n)->type) ||
1175             (CX231XX_VMUX_CABLE == INPUT(n)->type))
1176                 i->type = V4L2_INPUT_TYPE_TUNER;
1177
1178         i->std = dev->vdev->tvnorms;
1179
1180         /* If they are asking about the active input, read signal status */
1181         if (n == dev->video_input) {
1182                 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1183                                             GEN_STAT, 2, &gen_stat, 4);
1184                 if (ret > 0) {
1185                         if ((gen_stat & FLD_VPRES) == 0x00)
1186                                 i->status |= V4L2_IN_ST_NO_SIGNAL;
1187                         if ((gen_stat & FLD_HLOCK) == 0x00)
1188                                 i->status |= V4L2_IN_ST_NO_H_LOCK;
1189                 }
1190         }
1191
1192         return 0;
1193 }
1194
1195 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1196 {
1197         struct cx231xx_fh *fh = priv;
1198         struct cx231xx *dev = fh->dev;
1199
1200         *i = dev->video_input;
1201
1202         return 0;
1203 }
1204
1205 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1206 {
1207         struct cx231xx_fh *fh = priv;
1208         struct cx231xx *dev = fh->dev;
1209         int rc;
1210
1211         dev->mode_tv = 0;
1212         rc = check_dev(dev);
1213         if (rc < 0)
1214                 return rc;
1215
1216         if (i >= MAX_CX231XX_INPUT)
1217                 return -EINVAL;
1218         if (0 == INPUT(i)->type)
1219                 return -EINVAL;
1220
1221         video_mux(dev, i);
1222
1223         if (INPUT(i)->type == CX231XX_VMUX_TELEVISION ||
1224             INPUT(i)->type == CX231XX_VMUX_CABLE) {
1225                 /* There's a tuner, so reset the standard and put it on the
1226                    last known frequency (since it was probably powered down
1227                    until now */
1228                 call_all(dev, core, s_std, dev->norm);
1229         }
1230
1231         return 0;
1232 }
1233
1234 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1235 {
1236         struct cx231xx_fh *fh = priv;
1237         struct cx231xx *dev = fh->dev;
1238
1239         switch (a->index) {
1240         case CX231XX_AMUX_VIDEO:
1241                 strcpy(a->name, "Television");
1242                 break;
1243         case CX231XX_AMUX_LINE_IN:
1244                 strcpy(a->name, "Line In");
1245                 break;
1246         default:
1247                 return -EINVAL;
1248         }
1249
1250         a->index = dev->ctl_ainput;
1251         a->capability = V4L2_AUDCAP_STEREO;
1252
1253         return 0;
1254 }
1255
1256 static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
1257 {
1258         struct cx231xx_fh *fh = priv;
1259         struct cx231xx *dev = fh->dev;
1260         int status = 0;
1261
1262         /* Doesn't allow manual routing */
1263         if (a->index != dev->ctl_ainput)
1264                 return -EINVAL;
1265
1266         dev->ctl_ainput = INPUT(a->index)->amux;
1267         status = cx231xx_set_audio_input(dev, dev->ctl_ainput);
1268
1269         return status;
1270 }
1271
1272 static int vidioc_queryctrl(struct file *file, void *priv,
1273                             struct v4l2_queryctrl *qc)
1274 {
1275         struct cx231xx_fh *fh = priv;
1276         struct cx231xx *dev = fh->dev;
1277         int id = qc->id;
1278         int i;
1279         int rc;
1280
1281         rc = check_dev(dev);
1282         if (rc < 0)
1283                 return rc;
1284
1285         qc->id = v4l2_ctrl_next(ctrl_classes, qc->id);
1286         if (unlikely(qc->id == 0))
1287                 return -EINVAL;
1288
1289         memset(qc, 0, sizeof(*qc));
1290
1291         qc->id = id;
1292
1293         if (qc->id < V4L2_CID_BASE || qc->id >= V4L2_CID_LASTP1)
1294                 return -EINVAL;
1295
1296         for (i = 0; i < CX231XX_CTLS; i++)
1297                 if (cx231xx_ctls[i].v.id == qc->id)
1298                         break;
1299
1300         if (i == CX231XX_CTLS) {
1301                 *qc = no_ctl;
1302                 return 0;
1303         }
1304         *qc = cx231xx_ctls[i].v;
1305
1306         call_all(dev, core, queryctrl, qc);
1307
1308         if (qc->type)
1309                 return 0;
1310         else
1311                 return -EINVAL;
1312 }
1313
1314 static int vidioc_g_ctrl(struct file *file, void *priv,
1315                          struct v4l2_control *ctrl)
1316 {
1317         struct cx231xx_fh *fh = priv;
1318         struct cx231xx *dev = fh->dev;
1319         int rc;
1320
1321         rc = check_dev(dev);
1322         if (rc < 0)
1323                 return rc;
1324
1325         call_all(dev, core, g_ctrl, ctrl);
1326         return rc;
1327 }
1328
1329 static int vidioc_s_ctrl(struct file *file, void *priv,
1330                          struct v4l2_control *ctrl)
1331 {
1332         struct cx231xx_fh *fh = priv;
1333         struct cx231xx *dev = fh->dev;
1334         int rc;
1335
1336         rc = check_dev(dev);
1337         if (rc < 0)
1338                 return rc;
1339
1340         call_all(dev, core, s_ctrl, ctrl);
1341         return rc;
1342 }
1343
1344 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1345 {
1346         struct cx231xx_fh *fh = priv;
1347         struct cx231xx *dev = fh->dev;
1348         int rc;
1349
1350         rc = check_dev(dev);
1351         if (rc < 0)
1352                 return rc;
1353
1354         if (0 != t->index)
1355                 return -EINVAL;
1356
1357         strcpy(t->name, "Tuner");
1358
1359         t->type = V4L2_TUNER_ANALOG_TV;
1360         t->capability = V4L2_TUNER_CAP_NORM;
1361         t->rangehigh = 0xffffffffUL;
1362         t->signal = 0xffff;     /* LOCKED */
1363
1364         return 0;
1365 }
1366
1367 static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1368 {
1369         struct cx231xx_fh *fh = priv;
1370         struct cx231xx *dev = fh->dev;
1371         int rc;
1372
1373         rc = check_dev(dev);
1374         if (rc < 0)
1375                 return rc;
1376
1377         if (0 != t->index)
1378                 return -EINVAL;
1379 #if 0
1380         call_all(dev, tuner, s_tuner, t);
1381 #endif
1382         return 0;
1383 }
1384
1385 static int vidioc_g_frequency(struct file *file, void *priv,
1386                               struct v4l2_frequency *f)
1387 {
1388         struct cx231xx_fh *fh = priv;
1389         struct cx231xx *dev = fh->dev;
1390
1391         f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1392         f->frequency = dev->ctl_freq;
1393
1394         call_all(dev, tuner, g_frequency, f);
1395
1396         return 0;
1397 }
1398
1399 static int vidioc_s_frequency(struct file *file, void *priv,
1400                               struct v4l2_frequency *f)
1401 {
1402         struct cx231xx_fh *fh = priv;
1403         struct cx231xx *dev = fh->dev;
1404         int rc;
1405         u32 if_frequency = 5400000;
1406
1407         cx231xx_info("Enter vidioc_s_frequency()f->frequency=%d;f->type=%d\n",
1408                  f->frequency, f->type);
1409         /*cx231xx_info("f->type:  1-radio 2-analogTV 3-digitalTV\n");*/
1410
1411         rc = check_dev(dev);
1412         if (rc < 0)
1413                 return rc;
1414
1415         if (0 != f->tuner)
1416                 return -EINVAL;
1417
1418         if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1419                 return -EINVAL;
1420         if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1421                 return -EINVAL;
1422
1423         /* set pre channel change settings in DIF first */
1424         rc = cx231xx_tuner_pre_channel_change(dev);
1425
1426         dev->ctl_freq = f->frequency;
1427         call_all(dev, tuner, s_frequency, f);
1428
1429         /* set post channel change settings in DIF first */
1430         rc = cx231xx_tuner_post_channel_change(dev);
1431
1432         if (dev->tuner_type == TUNER_NXP_TDA18271) {
1433                 if (dev->norm & (V4L2_STD_MN | V4L2_STD_NTSC_443))
1434                         if_frequency = 5400000;  /*5.4MHz       */
1435                 else if (dev->norm & V4L2_STD_B)
1436                         if_frequency = 6000000;  /*6.0MHz       */
1437                 else if (dev->norm & (V4L2_STD_PAL_DK | V4L2_STD_SECAM_DK))
1438                         if_frequency = 6900000;  /*6.9MHz       */
1439                 else if (dev->norm & V4L2_STD_GH)
1440                         if_frequency = 7100000;  /*7.1MHz       */
1441                 else if (dev->norm & V4L2_STD_PAL_I)
1442                         if_frequency = 7250000;  /*7.25MHz      */
1443                 else if (dev->norm & V4L2_STD_SECAM_L)
1444                         if_frequency = 6900000;  /*6.9MHz       */
1445                 else if (dev->norm & V4L2_STD_SECAM_LC)
1446                         if_frequency = 1250000;  /*1.25MHz      */
1447
1448                 cx231xx_info("if_frequency is set to %d\n", if_frequency);
1449                 cx231xx_set_Colibri_For_LowIF(dev, if_frequency, 1, 1);
1450
1451                 update_HH_register_after_set_DIF(dev);
1452         }
1453
1454         cx231xx_info("Set New FREQUENCY to %d\n", f->frequency);
1455
1456         return rc;
1457 }
1458
1459 #ifdef CONFIG_VIDEO_ADV_DEBUG
1460
1461 /*
1462   -R, --list-registers=type=<host/i2cdrv/i2caddr>,
1463                                 chip=<chip>[,min=<addr>,max=<addr>]
1464                      dump registers from <min> to <max> [VIDIOC_DBG_G_REGISTER]
1465   -r, --set-register=type=<host/i2cdrv/i2caddr>,
1466                                 chip=<chip>,reg=<addr>,val=<val>
1467                      set the register [VIDIOC_DBG_S_REGISTER]
1468
1469   if type == host, then <chip> is the hosts chip ID (default 0)
1470   if type == i2cdrv (default), then <chip> is the I2C driver name or ID
1471   if type == i2caddr, then <chip> is the 7-bit I2C address
1472 */
1473
1474 static int vidioc_g_register(struct file *file, void *priv,
1475                              struct v4l2_dbg_register *reg)
1476 {
1477         struct cx231xx_fh *fh = priv;
1478         struct cx231xx *dev = fh->dev;
1479         int ret = 0;
1480         u8 value[4] = { 0, 0, 0, 0 };
1481         u32 data = 0;
1482
1483         switch (reg->match.type) {
1484         case V4L2_CHIP_MATCH_HOST:
1485                 switch (reg->match.addr) {
1486                 case 0: /* Cx231xx - internal registers */
1487                         ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
1488                                                   (u16)reg->reg, value, 4);
1489                         reg->val = value[0] | value[1] << 8 |
1490                                    value[2] << 16 | value[3] << 24;
1491                         break;
1492                 case 1: /* AFE - read byte */
1493                         ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1494                                                   (u16)reg->reg, 2, &data, 1);
1495                         reg->val = le32_to_cpu(data & 0xff);
1496                         break;
1497                 case 14: /* AFE - read dword */
1498                         ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1499                                                   (u16)reg->reg, 2, &data, 4);
1500                         reg->val = le32_to_cpu(data);
1501                         break;
1502                 case 2: /* Video Block - read byte */
1503                         ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1504                                                   (u16)reg->reg, 2, &data, 1);
1505                         reg->val = le32_to_cpu(data & 0xff);
1506                         break;
1507                 case 24: /* Video Block - read dword */
1508                         ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1509                                                   (u16)reg->reg, 2, &data, 4);
1510                         reg->val = le32_to_cpu(data);
1511                         break;
1512                 case 3: /* I2S block - read byte */
1513                         ret = cx231xx_read_i2c_data(dev,
1514                                                     I2S_BLK_DEVICE_ADDRESS,
1515                                                     (u16)reg->reg, 1,
1516                                                     &data, 1);
1517                         reg->val = le32_to_cpu(data & 0xff);
1518                         break;
1519                 case 34: /* I2S Block - read dword */
1520                         ret =
1521                             cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1522                                                   (u16)reg->reg, 1, &data, 4);
1523                         reg->val = le32_to_cpu(data);
1524                         break;
1525                 }
1526                 return ret < 0 ? ret : 0;
1527
1528         case V4L2_CHIP_MATCH_I2C_DRIVER:
1529                 call_all(dev, core, g_register, reg);
1530                 return 0;
1531         case V4L2_CHIP_MATCH_I2C_ADDR:/*for register debug*/
1532                 switch (reg->match.addr) {
1533                 case 0: /* Cx231xx - internal registers */
1534                         ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
1535                                                   (u16)reg->reg, value, 4);
1536                         reg->val = value[0] | value[1] << 8 |
1537                                    value[2] << 16 | value[3] << 24;
1538
1539                         break;
1540                 case 0x600:/* AFE - read byte */
1541                         ret = cx231xx_read_i2c_master(dev, AFE_DEVICE_ADDRESS,
1542                                                  (u16)reg->reg, 2,
1543                                                  &data, 1 , 0);
1544                         reg->val = le32_to_cpu(data & 0xff);
1545                         break;
1546
1547                 case 0x880:/* Video Block - read byte */
1548                         if (reg->reg < 0x0b) {
1549                                 ret = cx231xx_read_i2c_master(dev,
1550                                                 VID_BLK_I2C_ADDRESS,
1551                                                  (u16)reg->reg, 2,
1552                                                  &data, 1 , 0);
1553                                 reg->val = le32_to_cpu(data & 0xff);
1554                         } else {
1555                                 ret = cx231xx_read_i2c_master(dev,
1556                                                 VID_BLK_I2C_ADDRESS,
1557                                                  (u16)reg->reg, 2,
1558                                                  &data, 4 , 0);
1559                                 reg->val = le32_to_cpu(data);
1560                         }
1561                         break;
1562                 case 0x980:
1563                         ret = cx231xx_read_i2c_master(dev,
1564                                                 I2S_BLK_DEVICE_ADDRESS,
1565                                                 (u16)reg->reg, 1,
1566                                                 &data, 1 , 0);
1567                         reg->val = le32_to_cpu(data & 0xff);
1568                         break;
1569                 case 0x400:
1570                         ret =
1571                             cx231xx_read_i2c_master(dev, 0x40,
1572                                                   (u16)reg->reg, 1,
1573                                                  &data, 1 , 0);
1574                         reg->val = le32_to_cpu(data & 0xff);
1575                         break;
1576                 case 0xc01:
1577                         ret =
1578                                 cx231xx_read_i2c_master(dev, 0xc0,
1579                                                 (u16)reg->reg, 2,
1580                                                  &data, 38, 1);
1581                         reg->val = le32_to_cpu(data);
1582                         break;
1583                 case 0x022:
1584                         ret =
1585                                 cx231xx_read_i2c_master(dev, 0x02,
1586                                                 (u16)reg->reg, 1,
1587                                                  &data, 1, 2);
1588                         reg->val = le32_to_cpu(data & 0xff);
1589                         break;
1590                 case 0x322:
1591                         ret = cx231xx_read_i2c_master(dev,
1592                                                 0x32,
1593                                                  (u16)reg->reg, 1,
1594                                                  &data, 4 , 2);
1595                                 reg->val = le32_to_cpu(data);
1596                         break;
1597                 case 0x342:
1598                         ret = cx231xx_read_i2c_master(dev,
1599                                                 0x34,
1600                                                  (u16)reg->reg, 1,
1601                                                  &data, 4 , 2);
1602                                 reg->val = le32_to_cpu(data);
1603                         break;
1604
1605                 default:
1606                         cx231xx_info("no match device address!!\n");
1607                         break;
1608                         }
1609                 return ret < 0 ? ret : 0;
1610                 /*return -EINVAL;*/
1611         default:
1612                 if (!v4l2_chip_match_host(&reg->match))
1613                         return -EINVAL;
1614         }
1615
1616         call_all(dev, core, g_register, reg);
1617
1618         return ret;
1619 }
1620
1621 static int vidioc_s_register(struct file *file, void *priv,
1622                              struct v4l2_dbg_register *reg)
1623 {
1624         struct cx231xx_fh *fh = priv;
1625         struct cx231xx *dev = fh->dev;
1626         int ret = 0;
1627         __le64 buf;
1628         u32 value;
1629         u8 data[4] = { 0, 0, 0, 0 };
1630
1631         buf = cpu_to_le64(reg->val);
1632
1633         switch (reg->match.type) {
1634         case V4L2_CHIP_MATCH_HOST:
1635                 {
1636                         value = (u32) buf & 0xffffffff;
1637
1638                         switch (reg->match.addr) {
1639                         case 0: /* cx231xx internal registers */
1640                                 data[0] = (u8) value;
1641                                 data[1] = (u8) (value >> 8);
1642                                 data[2] = (u8) (value >> 16);
1643                                 data[3] = (u8) (value >> 24);
1644                                 ret = cx231xx_write_ctrl_reg(dev,
1645                                                            VRT_SET_REGISTER,
1646                                                            (u16)reg->reg, data,
1647                                                            4);
1648                                 break;
1649                         case 1: /* AFE - read byte */
1650                                 ret = cx231xx_write_i2c_data(dev,
1651                                                         AFE_DEVICE_ADDRESS,
1652                                                         (u16)reg->reg, 2,
1653                                                         value, 1);
1654                                 break;
1655                         case 14: /* AFE - read dword */
1656                                 ret = cx231xx_write_i2c_data(dev,
1657                                                         AFE_DEVICE_ADDRESS,
1658                                                         (u16)reg->reg, 2,
1659                                                         value, 4);
1660                                 break;
1661                         case 2: /* Video Block - read byte */
1662                                 ret =
1663                                     cx231xx_write_i2c_data(dev,
1664                                                         VID_BLK_I2C_ADDRESS,
1665                                                         (u16)reg->reg, 2,
1666                                                         value, 1);
1667                                 break;
1668                         case 24: /* Video Block - read dword */
1669                                 ret =
1670                                     cx231xx_write_i2c_data(dev,
1671                                                         VID_BLK_I2C_ADDRESS,
1672                                                         (u16)reg->reg, 2,
1673                                                         value, 4);
1674                                 break;
1675                         case 3: /* I2S block - read byte */
1676                                 ret =
1677                                     cx231xx_write_i2c_data(dev,
1678                                                         I2S_BLK_DEVICE_ADDRESS,
1679                                                         (u16)reg->reg, 1,
1680                                                         value, 1);
1681                                 break;
1682                         case 34: /* I2S block - read dword */
1683                                 ret =
1684                                     cx231xx_write_i2c_data(dev,
1685                                                         I2S_BLK_DEVICE_ADDRESS,
1686                                                         (u16)reg->reg, 1,
1687                                                         value, 4);
1688                                 break;
1689                         }
1690                 }
1691                 return ret < 0 ? ret : 0;
1692         case V4L2_CHIP_MATCH_I2C_ADDR:
1693                 {
1694                         value = (u32) buf & 0xffffffff;
1695
1696                         switch (reg->match.addr) {
1697                         case 0:/*cx231xx internal registers*/
1698                                         data[0] = (u8) value;
1699                                         data[1] = (u8) (value >> 8);
1700                                         data[2] = (u8) (value >> 16);
1701                                         data[3] = (u8) (value >> 24);
1702                                         ret = cx231xx_write_ctrl_reg(dev,
1703                                                            VRT_SET_REGISTER,
1704                                                            (u16)reg->reg, data,
1705                                                            4);
1706                                         break;
1707                         case 0x600:/* AFE - read byte */
1708                                         ret = cx231xx_write_i2c_master(dev,
1709                                                         AFE_DEVICE_ADDRESS,
1710                                                         (u16)reg->reg, 2,
1711                                                         value, 1 , 0);
1712                                         break;
1713
1714                         case 0x880:/* Video Block - read byte */
1715                                         if (reg->reg < 0x0b)
1716                                                 cx231xx_write_i2c_master(dev,
1717                                                         VID_BLK_I2C_ADDRESS,
1718                                                         (u16)reg->reg, 2,
1719                                                         value, 1, 0);
1720                                         else
1721                                                 cx231xx_write_i2c_master(dev,
1722                                                         VID_BLK_I2C_ADDRESS,
1723                                                         (u16)reg->reg, 2,
1724                                                         value, 4, 0);
1725                                         break;
1726                         case 0x980:
1727                                         ret =
1728                                                 cx231xx_write_i2c_master(dev,
1729                                                         I2S_BLK_DEVICE_ADDRESS,
1730                                                         (u16)reg->reg, 1,
1731                                                         value, 1, 0);
1732                                         break;
1733                         case 0x400:
1734                                         ret =
1735                                                 cx231xx_write_i2c_master(dev,
1736                                                         0x40,
1737                                                         (u16)reg->reg, 1,
1738                                                         value, 1, 0);
1739                                         break;
1740                         case 0xc01:
1741                                         ret =
1742                                                 cx231xx_write_i2c_master(dev,
1743                                                          0xc0,
1744                                                          (u16)reg->reg, 1,
1745                                                          value, 1, 1);
1746                                         break;
1747
1748                         case 0x022:
1749                                         ret =
1750                                                 cx231xx_write_i2c_master(dev,
1751                                                         0x02,
1752                                                         (u16)reg->reg, 1,
1753                                                         value, 1, 2);
1754                         case 0x322:
1755                                         ret =
1756                                                 cx231xx_write_i2c_master(dev,
1757                                                         0x32,
1758                                                         (u16)reg->reg, 1,
1759                                                         value, 4, 2);
1760                                         break;
1761
1762                         case 0x342:
1763                                         ret =
1764                                                 cx231xx_write_i2c_master(dev,
1765                                                         0x34,
1766                                                         (u16)reg->reg, 1,
1767                                                         value, 4, 2);
1768                                         break;
1769                         default:
1770                                 cx231xx_info("no match device address, "
1771                                         "the value is %x\n", reg->match.addr);
1772                                         break;
1773
1774                                         }
1775
1776                 }
1777         default:
1778                 break;
1779         }
1780
1781         call_all(dev, core, s_register, reg);
1782
1783         return ret;
1784 }
1785 #endif
1786
1787 static int vidioc_cropcap(struct file *file, void *priv,
1788                           struct v4l2_cropcap *cc)
1789 {
1790         struct cx231xx_fh *fh = priv;
1791         struct cx231xx *dev = fh->dev;
1792
1793         if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1794                 return -EINVAL;
1795
1796         cc->bounds.left = 0;
1797         cc->bounds.top = 0;
1798         cc->bounds.width = dev->width;
1799         cc->bounds.height = dev->height;
1800         cc->defrect = cc->bounds;
1801         cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */
1802         cc->pixelaspect.denominator = 59;
1803
1804         return 0;
1805 }
1806
1807 static int vidioc_streamon(struct file *file, void *priv,
1808                            enum v4l2_buf_type type)
1809 {
1810         struct cx231xx_fh *fh = priv;
1811         struct cx231xx *dev = fh->dev;
1812         int rc;
1813
1814         rc = check_dev(dev);
1815         if (rc < 0)
1816                 return rc;
1817
1818         rc = res_get(fh);
1819
1820         if (likely(rc >= 0))
1821                 rc = videobuf_streamon(&fh->vb_vidq);
1822
1823         call_all(dev, video, s_stream, 1);
1824
1825         return rc;
1826 }
1827
1828 static int vidioc_streamoff(struct file *file, void *priv,
1829                             enum v4l2_buf_type type)
1830 {
1831         struct cx231xx_fh *fh = priv;
1832         struct cx231xx *dev = fh->dev;
1833         int rc;
1834
1835         rc = check_dev(dev);
1836         if (rc < 0)
1837                 return rc;
1838
1839         if ((fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
1840             (fh->type != V4L2_BUF_TYPE_VBI_CAPTURE))
1841                 return -EINVAL;
1842         if (type != fh->type)
1843                 return -EINVAL;
1844
1845         cx25840_call(dev, video, s_stream, 0);
1846
1847         videobuf_streamoff(&fh->vb_vidq);
1848         res_free(fh);
1849
1850         return 0;
1851 }
1852
1853 static int vidioc_querycap(struct file *file, void *priv,
1854                            struct v4l2_capability *cap)
1855 {
1856         struct cx231xx_fh *fh = priv;
1857         struct cx231xx *dev = fh->dev;
1858
1859         strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
1860         strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
1861         usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
1862
1863         cap->capabilities = V4L2_CAP_VBI_CAPTURE |
1864 #if 0
1865                 V4L2_CAP_SLICED_VBI_CAPTURE |
1866 #endif
1867                 V4L2_CAP_VIDEO_CAPTURE  |
1868                 V4L2_CAP_AUDIO          |
1869                 V4L2_CAP_READWRITE      |
1870                 V4L2_CAP_STREAMING;
1871
1872         if (dev->tuner_type != TUNER_ABSENT)
1873                 cap->capabilities |= V4L2_CAP_TUNER;
1874
1875         return 0;
1876 }
1877
1878 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1879                                    struct v4l2_fmtdesc *f)
1880 {
1881         if (unlikely(f->index >= ARRAY_SIZE(format)))
1882                 return -EINVAL;
1883
1884         strlcpy(f->description, format[f->index].name, sizeof(f->description));
1885         f->pixelformat = format[f->index].fourcc;
1886
1887         return 0;
1888 }
1889
1890 /* Sliced VBI ioctls */
1891 static int vidioc_g_fmt_sliced_vbi_cap(struct file *file, void *priv,
1892                                        struct v4l2_format *f)
1893 {
1894         struct cx231xx_fh *fh = priv;
1895         struct cx231xx *dev = fh->dev;
1896         int rc;
1897
1898         rc = check_dev(dev);
1899         if (rc < 0)
1900                 return rc;
1901
1902         f->fmt.sliced.service_set = 0;
1903
1904         call_all(dev, vbi, g_sliced_fmt, &f->fmt.sliced);
1905
1906         if (f->fmt.sliced.service_set == 0)
1907                 rc = -EINVAL;
1908
1909         return rc;
1910 }
1911
1912 static int vidioc_try_set_sliced_vbi_cap(struct file *file, void *priv,
1913                                          struct v4l2_format *f)
1914 {
1915         struct cx231xx_fh *fh = priv;
1916         struct cx231xx *dev = fh->dev;
1917         int rc;
1918
1919         rc = check_dev(dev);
1920         if (rc < 0)
1921                 return rc;
1922
1923         call_all(dev, vbi, g_sliced_fmt, &f->fmt.sliced);
1924
1925         if (f->fmt.sliced.service_set == 0)
1926                 return -EINVAL;
1927
1928         return 0;
1929 }
1930
1931 /* RAW VBI ioctls */
1932
1933 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1934                                 struct v4l2_format *f)
1935 {
1936         struct cx231xx_fh *fh = priv;
1937         struct cx231xx *dev = fh->dev;
1938         f->fmt.vbi.sampling_rate = 6750000 * 4;
1939         f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1940         f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1941         f->fmt.vbi.offset = 0;
1942         f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1943             PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1944         f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1945             PAL_VBI_LINES : NTSC_VBI_LINES;
1946         f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1947             PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1948         f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1949
1950         return 0;
1951
1952 }
1953
1954 static int vidioc_try_fmt_vbi_cap(struct file *file, void *priv,
1955                                   struct v4l2_format *f)
1956 {
1957         struct cx231xx_fh *fh = priv;
1958         struct cx231xx *dev = fh->dev;
1959
1960         if (dev->vbi_stream_on && !fh->stream_on) {
1961                 cx231xx_errdev("%s device in use by another fh\n", __func__);
1962                 return -EBUSY;
1963         }
1964
1965         f->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1966         f->fmt.vbi.sampling_rate = 6750000 * 4;
1967         f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1968         f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1969         f->fmt.vbi.offset = 0;
1970         f->fmt.vbi.flags = 0;
1971         f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1972             PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1973         f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1974             PAL_VBI_LINES : NTSC_VBI_LINES;
1975         f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1976             PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1977         f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1978
1979         return 0;
1980
1981 }
1982
1983 static int vidioc_reqbufs(struct file *file, void *priv,
1984                           struct v4l2_requestbuffers *rb)
1985 {
1986         struct cx231xx_fh *fh = priv;
1987         struct cx231xx *dev = fh->dev;
1988         int rc;
1989
1990         rc = check_dev(dev);
1991         if (rc < 0)
1992                 return rc;
1993
1994         return videobuf_reqbufs(&fh->vb_vidq, rb);
1995 }
1996
1997 static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *b)
1998 {
1999         struct cx231xx_fh *fh = priv;
2000         struct cx231xx *dev = fh->dev;
2001         int rc;
2002
2003         rc = check_dev(dev);
2004         if (rc < 0)
2005                 return rc;
2006
2007         return videobuf_querybuf(&fh->vb_vidq, b);
2008 }
2009
2010 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2011 {
2012         struct cx231xx_fh *fh = priv;
2013         struct cx231xx *dev = fh->dev;
2014         int rc;
2015
2016         rc = check_dev(dev);
2017         if (rc < 0)
2018                 return rc;
2019
2020         return videobuf_qbuf(&fh->vb_vidq, b);
2021 }
2022
2023 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2024 {
2025         struct cx231xx_fh *fh = priv;
2026         struct cx231xx *dev = fh->dev;
2027         int rc;
2028
2029         rc = check_dev(dev);
2030         if (rc < 0)
2031                 return rc;
2032
2033         return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK);
2034 }
2035
2036 /* ----------------------------------------------------------- */
2037 /* RADIO ESPECIFIC IOCTLS                                      */
2038 /* ----------------------------------------------------------- */
2039
2040 static int radio_querycap(struct file *file, void *priv,
2041                           struct v4l2_capability *cap)
2042 {
2043         struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
2044
2045         strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
2046         strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
2047         usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
2048
2049         cap->capabilities = V4L2_CAP_TUNER;
2050         return 0;
2051 }
2052
2053 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
2054 {
2055         struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
2056
2057         if (unlikely(t->index > 0))
2058                 return -EINVAL;
2059
2060         strcpy(t->name, "Radio");
2061         t->type = V4L2_TUNER_RADIO;
2062
2063         call_all(dev, tuner, s_tuner, t);
2064
2065         return 0;
2066 }
2067
2068 static int radio_enum_input(struct file *file, void *priv, struct v4l2_input *i)
2069 {
2070         if (i->index != 0)
2071                 return -EINVAL;
2072         strcpy(i->name, "Radio");
2073         i->type = V4L2_INPUT_TYPE_TUNER;
2074
2075         return 0;
2076 }
2077
2078 static int radio_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
2079 {
2080         if (unlikely(a->index))
2081                 return -EINVAL;
2082
2083         strcpy(a->name, "Radio");
2084         return 0;
2085 }
2086
2087 static int radio_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
2088 {
2089         struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
2090
2091         if (0 != t->index)
2092                 return -EINVAL;
2093
2094         call_all(dev, tuner, s_tuner, t);
2095
2096         return 0;
2097 }
2098
2099 static int radio_s_audio(struct file *file, void *fh, struct v4l2_audio *a)
2100 {
2101         return 0;
2102 }
2103
2104 static int radio_s_input(struct file *file, void *fh, unsigned int i)
2105 {
2106         return 0;
2107 }
2108
2109 static int radio_queryctrl(struct file *file, void *priv,
2110                            struct v4l2_queryctrl *c)
2111 {
2112         int i;
2113
2114         if (c->id < V4L2_CID_BASE || c->id >= V4L2_CID_LASTP1)
2115                 return -EINVAL;
2116         if (c->id == V4L2_CID_AUDIO_MUTE) {
2117                 for (i = 0; i < CX231XX_CTLS; i++) {
2118                         if (cx231xx_ctls[i].v.id == c->id)
2119                                 break;
2120                 }
2121                 if (i == CX231XX_CTLS)
2122                         return -EINVAL;
2123                 *c = cx231xx_ctls[i].v;
2124         } else
2125                 *c = no_ctl;
2126         return 0;
2127 }
2128
2129 /*
2130  * cx231xx_v4l2_open()
2131  * inits the device and starts isoc transfer
2132  */
2133 static int cx231xx_v4l2_open(struct file *filp)
2134 {
2135         int errCode = 0, radio = 0;
2136         struct video_device *vdev = video_devdata(filp);
2137         struct cx231xx *dev = video_drvdata(filp);
2138         struct cx231xx_fh *fh;
2139         enum v4l2_buf_type fh_type = 0;
2140
2141         switch (vdev->vfl_type) {
2142         case VFL_TYPE_GRABBER:
2143                 fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2144                 break;
2145         case VFL_TYPE_VBI:
2146                 fh_type = V4L2_BUF_TYPE_VBI_CAPTURE;
2147                 break;
2148         case VFL_TYPE_RADIO:
2149                 radio = 1;
2150                 break;
2151         }
2152
2153         cx231xx_videodbg("open dev=%s type=%s users=%d\n",
2154                          video_device_node_name(vdev), v4l2_type_names[fh_type],
2155                          dev->users);
2156
2157 #if 0
2158         errCode = cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
2159         if (errCode < 0) {
2160                 cx231xx_errdev
2161                     ("Device locked on digital mode. Can't open analog\n");
2162                 return -EBUSY;
2163         }
2164 #endif
2165
2166         fh = kzalloc(sizeof(struct cx231xx_fh), GFP_KERNEL);
2167         if (!fh) {
2168                 cx231xx_errdev("cx231xx-video.c: Out of memory?!\n");
2169                 return -ENOMEM;
2170         }
2171         fh->dev = dev;
2172         fh->radio = radio;
2173         fh->type = fh_type;
2174         filp->private_data = fh;
2175
2176         if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
2177                 dev->width = norm_maxw(dev);
2178                 dev->height = norm_maxh(dev);
2179
2180                 /* Power up in Analog TV mode */
2181                 if (dev->board.external_av)
2182                         cx231xx_set_power_mode(dev,
2183                                  POLARIS_AVMODE_ENXTERNAL_AV);
2184                 else
2185                         cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV);
2186
2187 #if 0
2188                 cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
2189 #endif
2190
2191                 /* set video alternate setting */
2192                 cx231xx_set_video_alternate(dev);
2193
2194                 /* Needed, since GPIO might have disabled power of
2195                    some i2c device */
2196                 cx231xx_config_i2c(dev);
2197
2198                 /* device needs to be initialized before isoc transfer */
2199                 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
2200
2201         }
2202         if (fh->radio) {
2203                 cx231xx_videodbg("video_open: setting radio device\n");
2204
2205                 /* cx231xx_start_radio(dev); */
2206
2207                 call_all(dev, tuner, s_radio);
2208         }
2209
2210         dev->users++;
2211
2212         if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
2213                 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_video_qops,
2214                                             NULL, &dev->video_mode.slock,
2215                                             fh->type, V4L2_FIELD_INTERLACED,
2216                                             sizeof(struct cx231xx_buffer),
2217                                             fh, &dev->lock);
2218         if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
2219                 /* Set the required alternate setting  VBI interface works in
2220                    Bulk mode only */
2221                 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
2222
2223                 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_vbi_qops,
2224                                             NULL, &dev->vbi_mode.slock,
2225                                             fh->type, V4L2_FIELD_SEQ_TB,
2226                                             sizeof(struct cx231xx_buffer),
2227                                             fh, &dev->lock);
2228         }
2229
2230         return errCode;
2231 }
2232
2233 /*
2234  * cx231xx_realease_resources()
2235  * unregisters the v4l2,i2c and usb devices
2236  * called when the device gets disconected or at module unload
2237 */
2238 void cx231xx_release_analog_resources(struct cx231xx *dev)
2239 {
2240
2241         /*FIXME: I2C IR should be disconnected */
2242
2243         if (dev->radio_dev) {
2244                 if (video_is_registered(dev->radio_dev))
2245                         video_unregister_device(dev->radio_dev);
2246                 else
2247                         video_device_release(dev->radio_dev);
2248                 dev->radio_dev = NULL;
2249         }
2250         if (dev->vbi_dev) {
2251                 cx231xx_info("V4L2 device %s deregistered\n",
2252                              video_device_node_name(dev->vbi_dev));
2253                 if (video_is_registered(dev->vbi_dev))
2254                         video_unregister_device(dev->vbi_dev);
2255                 else
2256                         video_device_release(dev->vbi_dev);
2257                 dev->vbi_dev = NULL;
2258         }
2259         if (dev->vdev) {
2260                 cx231xx_info("V4L2 device %s deregistered\n",
2261                              video_device_node_name(dev->vdev));
2262
2263                 if (dev->board.has_417)
2264                         cx231xx_417_unregister(dev);
2265
2266                 if (video_is_registered(dev->vdev))
2267                         video_unregister_device(dev->vdev);
2268                 else
2269                         video_device_release(dev->vdev);
2270                 dev->vdev = NULL;
2271         }
2272 }
2273
2274 /*
2275  * cx231xx_v4l2_close()
2276  * stops streaming and deallocates all resources allocated by the v4l2
2277  * calls and ioctls
2278  */
2279 static int cx231xx_v4l2_close(struct file *filp)
2280 {
2281         struct cx231xx_fh *fh = filp->private_data;
2282         struct cx231xx *dev = fh->dev;
2283
2284         cx231xx_videodbg("users=%d\n", dev->users);
2285
2286         cx231xx_videodbg("users=%d\n", dev->users);
2287         if (res_check(fh))
2288                 res_free(fh);
2289
2290         /*
2291          * To workaround error number=-71 on EP0 for VideoGrabber,
2292          *       need exclude following.
2293          * FIXME: It is probably safe to remove most of these, as we're
2294          * now avoiding the alternate setting for INDEX_VANC
2295          */
2296         if (!dev->board.no_alt_vanc)
2297                 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
2298                         videobuf_stop(&fh->vb_vidq);
2299                         videobuf_mmap_free(&fh->vb_vidq);
2300
2301                         /* the device is already disconnect,
2302                            free the remaining resources */
2303                         if (dev->state & DEV_DISCONNECTED) {
2304                                 if (atomic_read(&dev->devlist_count) > 0) {
2305                                         cx231xx_release_resources(dev);
2306                                         fh->dev = NULL;
2307                                         return 0;
2308                                 }
2309                                 return 0;
2310                         }
2311
2312                         /* do this before setting alternate! */
2313                         cx231xx_uninit_vbi_isoc(dev);
2314
2315                         /* set alternate 0 */
2316                         if (!dev->vbi_or_sliced_cc_mode)
2317                                 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
2318                         else
2319                                 cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
2320
2321                         kfree(fh);
2322                         dev->users--;
2323                         wake_up_interruptible_nr(&dev->open, 1);
2324                         return 0;
2325                 }
2326
2327         dev->users--;
2328         if (!dev->users) {
2329                 videobuf_stop(&fh->vb_vidq);
2330                 videobuf_mmap_free(&fh->vb_vidq);
2331
2332                 /* the device is already disconnect,
2333                    free the remaining resources */
2334                 if (dev->state & DEV_DISCONNECTED) {
2335                         cx231xx_release_resources(dev);
2336                         fh->dev = NULL;
2337                         return 0;
2338                 }
2339
2340                 /* Save some power by putting tuner to sleep */
2341                 call_all(dev, core, s_power, 0);
2342
2343                 /* do this before setting alternate! */
2344                 if (dev->USE_ISO)
2345                         cx231xx_uninit_isoc(dev);
2346                 else
2347                         cx231xx_uninit_bulk(dev);
2348                 cx231xx_set_mode(dev, CX231XX_SUSPEND);
2349
2350                 /* set alternate 0 */
2351                 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
2352         }
2353         kfree(fh);
2354         wake_up_interruptible_nr(&dev->open, 1);
2355         return 0;
2356 }
2357
2358 /*
2359  * cx231xx_v4l2_read()
2360  * will allocate buffers when called for the first time
2361  */
2362 static ssize_t
2363 cx231xx_v4l2_read(struct file *filp, char __user *buf, size_t count,
2364                   loff_t *pos)
2365 {
2366         struct cx231xx_fh *fh = filp->private_data;
2367         struct cx231xx *dev = fh->dev;
2368         int rc;
2369
2370         rc = check_dev(dev);
2371         if (rc < 0)
2372                 return rc;
2373
2374         if ((fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
2375             (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)) {
2376                 rc = res_get(fh);
2377
2378                 if (unlikely(rc < 0))
2379                         return rc;
2380
2381                 return videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0,
2382                                             filp->f_flags & O_NONBLOCK);
2383         }
2384         return 0;
2385 }
2386
2387 /*
2388  * cx231xx_v4l2_poll()
2389  * will allocate buffers when called for the first time
2390  */
2391 static unsigned int cx231xx_v4l2_poll(struct file *filp, poll_table *wait)
2392 {
2393         struct cx231xx_fh *fh = filp->private_data;
2394         struct cx231xx *dev = fh->dev;
2395         int rc;
2396
2397         rc = check_dev(dev);
2398         if (rc < 0)
2399                 return rc;
2400
2401         rc = res_get(fh);
2402
2403         if (unlikely(rc < 0))
2404                 return POLLERR;
2405
2406         if ((V4L2_BUF_TYPE_VIDEO_CAPTURE == fh->type) ||
2407             (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type))
2408                 return videobuf_poll_stream(filp, &fh->vb_vidq, wait);
2409         else
2410                 return POLLERR;
2411 }
2412
2413 /*
2414  * cx231xx_v4l2_mmap()
2415  */
2416 static int cx231xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
2417 {
2418         struct cx231xx_fh *fh = filp->private_data;
2419         struct cx231xx *dev = fh->dev;
2420         int rc;
2421
2422         rc = check_dev(dev);
2423         if (rc < 0)
2424                 return rc;
2425
2426         rc = res_get(fh);
2427
2428         if (unlikely(rc < 0))
2429                 return rc;
2430
2431         rc = videobuf_mmap_mapper(&fh->vb_vidq, vma);
2432
2433         cx231xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n",
2434                          (unsigned long)vma->vm_start,
2435                          (unsigned long)vma->vm_end -
2436                          (unsigned long)vma->vm_start, rc);
2437
2438         return rc;
2439 }
2440
2441 static const struct v4l2_file_operations cx231xx_v4l_fops = {
2442         .owner   = THIS_MODULE,
2443         .open    = cx231xx_v4l2_open,
2444         .release = cx231xx_v4l2_close,
2445         .read    = cx231xx_v4l2_read,
2446         .poll    = cx231xx_v4l2_poll,
2447         .mmap    = cx231xx_v4l2_mmap,
2448         .unlocked_ioctl   = video_ioctl2,
2449 };
2450
2451 static const struct v4l2_ioctl_ops video_ioctl_ops = {
2452         .vidioc_querycap               = vidioc_querycap,
2453         .vidioc_enum_fmt_vid_cap       = vidioc_enum_fmt_vid_cap,
2454         .vidioc_g_fmt_vid_cap          = vidioc_g_fmt_vid_cap,
2455         .vidioc_try_fmt_vid_cap        = vidioc_try_fmt_vid_cap,
2456         .vidioc_s_fmt_vid_cap          = vidioc_s_fmt_vid_cap,
2457         .vidioc_g_fmt_vbi_cap          = vidioc_g_fmt_vbi_cap,
2458         .vidioc_try_fmt_vbi_cap        = vidioc_try_fmt_vbi_cap,
2459         .vidioc_s_fmt_vbi_cap          = vidioc_try_fmt_vbi_cap,
2460         .vidioc_g_audio                =  vidioc_g_audio,
2461         .vidioc_s_audio                = vidioc_s_audio,
2462         .vidioc_cropcap                = vidioc_cropcap,
2463         .vidioc_g_fmt_sliced_vbi_cap   = vidioc_g_fmt_sliced_vbi_cap,
2464         .vidioc_try_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap,
2465         .vidioc_reqbufs                = vidioc_reqbufs,
2466         .vidioc_querybuf               = vidioc_querybuf,
2467         .vidioc_qbuf                   = vidioc_qbuf,
2468         .vidioc_dqbuf                  = vidioc_dqbuf,
2469         .vidioc_s_std                  = vidioc_s_std,
2470         .vidioc_g_std                  = vidioc_g_std,
2471         .vidioc_enum_input             = vidioc_enum_input,
2472         .vidioc_g_input                = vidioc_g_input,
2473         .vidioc_s_input                = vidioc_s_input,
2474         .vidioc_queryctrl              = vidioc_queryctrl,
2475         .vidioc_g_ctrl                 = vidioc_g_ctrl,
2476         .vidioc_s_ctrl                 = vidioc_s_ctrl,
2477         .vidioc_streamon               = vidioc_streamon,
2478         .vidioc_streamoff              = vidioc_streamoff,
2479         .vidioc_g_tuner                = vidioc_g_tuner,
2480         .vidioc_s_tuner                = vidioc_s_tuner,
2481         .vidioc_g_frequency            = vidioc_g_frequency,
2482         .vidioc_s_frequency            = vidioc_s_frequency,
2483 #ifdef CONFIG_VIDEO_ADV_DEBUG
2484         .vidioc_g_register             = vidioc_g_register,
2485         .vidioc_s_register             = vidioc_s_register,
2486 #endif
2487 };
2488
2489 static struct video_device cx231xx_vbi_template;
2490
2491 static const struct video_device cx231xx_video_template = {
2492         .fops         = &cx231xx_v4l_fops,
2493         .release      = video_device_release,
2494         .ioctl_ops    = &video_ioctl_ops,
2495         .tvnorms      = V4L2_STD_ALL,
2496         .current_norm = V4L2_STD_PAL,
2497 };
2498
2499 static const struct v4l2_file_operations radio_fops = {
2500         .owner   = THIS_MODULE,
2501         .open   = cx231xx_v4l2_open,
2502         .release = cx231xx_v4l2_close,
2503         .ioctl   = video_ioctl2,
2504 };
2505
2506 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
2507         .vidioc_querycap    = radio_querycap,
2508         .vidioc_g_tuner     = radio_g_tuner,
2509         .vidioc_enum_input  = radio_enum_input,
2510         .vidioc_g_audio     = radio_g_audio,
2511         .vidioc_s_tuner     = radio_s_tuner,
2512         .vidioc_s_audio     = radio_s_audio,
2513         .vidioc_s_input     = radio_s_input,
2514         .vidioc_queryctrl   = radio_queryctrl,
2515         .vidioc_g_ctrl      = vidioc_g_ctrl,
2516         .vidioc_s_ctrl      = vidioc_s_ctrl,
2517         .vidioc_g_frequency = vidioc_g_frequency,
2518         .vidioc_s_frequency = vidioc_s_frequency,
2519 #ifdef CONFIG_VIDEO_ADV_DEBUG
2520         .vidioc_g_register  = vidioc_g_register,
2521         .vidioc_s_register  = vidioc_s_register,
2522 #endif
2523 };
2524
2525 static struct video_device cx231xx_radio_template = {
2526         .name      = "cx231xx-radio",
2527         .fops      = &radio_fops,
2528         .ioctl_ops = &radio_ioctl_ops,
2529 };
2530
2531 /******************************** usb interface ******************************/
2532
2533 static struct video_device *cx231xx_vdev_init(struct cx231xx *dev,
2534                 const struct video_device
2535                 *template, const char *type_name)
2536 {
2537         struct video_device *vfd;
2538
2539         vfd = video_device_alloc();
2540         if (NULL == vfd)
2541                 return NULL;
2542
2543         *vfd = *template;
2544         vfd->v4l2_dev = &dev->v4l2_dev;
2545         vfd->release = video_device_release;
2546         vfd->debug = video_debug;
2547         vfd->lock = &dev->lock;
2548         /* Locking in file operations other than ioctl should be done
2549            by the driver, not the V4L2 core.
2550            This driver needs auditing so that this flag can be removed. */
2551         set_bit(V4L2_FL_LOCK_ALL_FOPS, &vfd->flags);
2552
2553         snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
2554
2555         video_set_drvdata(vfd, dev);
2556         return vfd;
2557 }
2558
2559 int cx231xx_register_analog_devices(struct cx231xx *dev)
2560 {
2561         int ret;
2562
2563         cx231xx_info("%s: v4l2 driver version %s\n",
2564                      dev->name, CX231XX_VERSION);
2565
2566         /* set default norm */
2567         /*dev->norm = cx231xx_video_template.current_norm; */
2568         dev->width = norm_maxw(dev);
2569         dev->height = norm_maxh(dev);
2570         dev->interlaced = 0;
2571
2572         /* Analog specific initialization */
2573         dev->format = &format[0];
2574
2575         /* Set the initial input */
2576         video_mux(dev, dev->video_input);
2577
2578         /* Audio defaults */
2579         dev->mute = 1;
2580         dev->volume = 0x1f;
2581
2582         /* enable vbi capturing */
2583         /* write code here...  */
2584
2585         /* allocate and fill video video_device struct */
2586         dev->vdev = cx231xx_vdev_init(dev, &cx231xx_video_template, "video");
2587         if (!dev->vdev) {
2588                 cx231xx_errdev("cannot allocate video_device.\n");
2589                 return -ENODEV;
2590         }
2591
2592         /* register v4l2 video video_device */
2593         ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
2594                                     video_nr[dev->devno]);
2595         if (ret) {
2596                 cx231xx_errdev("unable to register video device (error=%i).\n",
2597                                ret);
2598                 return ret;
2599         }
2600
2601         cx231xx_info("%s/0: registered device %s [v4l2]\n",
2602                      dev->name, video_device_node_name(dev->vdev));
2603
2604         /* Initialize VBI template */
2605         memcpy(&cx231xx_vbi_template, &cx231xx_video_template,
2606                sizeof(cx231xx_vbi_template));
2607         strcpy(cx231xx_vbi_template.name, "cx231xx-vbi");
2608
2609         /* Allocate and fill vbi video_device struct */
2610         dev->vbi_dev = cx231xx_vdev_init(dev, &cx231xx_vbi_template, "vbi");
2611
2612         /* register v4l2 vbi video_device */
2613         ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
2614                                     vbi_nr[dev->devno]);
2615         if (ret < 0) {
2616                 cx231xx_errdev("unable to register vbi device\n");
2617                 return ret;
2618         }
2619
2620         cx231xx_info("%s/0: registered device %s\n",
2621                      dev->name, video_device_node_name(dev->vbi_dev));
2622
2623         if (cx231xx_boards[dev->model].radio.type == CX231XX_RADIO) {
2624                 dev->radio_dev = cx231xx_vdev_init(dev, &cx231xx_radio_template,
2625                                                    "radio");
2626                 if (!dev->radio_dev) {
2627                         cx231xx_errdev("cannot allocate video_device.\n");
2628                         return -ENODEV;
2629                 }
2630                 ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
2631                                             radio_nr[dev->devno]);
2632                 if (ret < 0) {
2633                         cx231xx_errdev("can't register radio device\n");
2634                         return ret;
2635                 }
2636                 cx231xx_info("Registered radio device as %s\n",
2637                              video_device_node_name(dev->radio_dev));
2638         }
2639
2640         cx231xx_info("V4L2 device registered as %s and %s\n",
2641                      video_device_node_name(dev->vdev),
2642                      video_device_node_name(dev->vbi_dev));
2643
2644         return 0;
2645 }