drivers/media/usb/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-event.h>
  39 #include <media/v4l2-chip-ident.h>
  40 #include <media/msp3400.h>
  41 #include <media/tuner.h>
  42
  43 #include "dvb_frontend.h"
  44
  45 #include "cx231xx.h"
  46 #include "cx231xx-vbi.h"
  47
  48 #define CX231XX_VERSION "0.0.2"
  49
  50 #define DRIVER_AUTHOR   "Srinivasa Deevi <srinivasa.deevi@conexant.com>"
  51 #define DRIVER_DESC     "Conexant cx231xx based USB video device driver"
  52
  53 #define cx231xx_videodbg(fmt, arg...) do {\
  54         if (video_debug) \
  55                 printk(KERN_INFO "%s %s :"fmt, \
  56                          dev->name, __func__ , ##arg); } while (0)
  57
  58 static unsigned int isoc_debug;
  59 module_param(isoc_debug, int, 0644);
  60 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
  61
  62 #define cx231xx_isocdbg(fmt, arg...) \
  63 do {\
  64         if (isoc_debug) { \
  65                 printk(KERN_INFO "%s %s :"fmt, \
  66                          dev->name, __func__ , ##arg); \
  67         } \
  68   } while (0)
  69
  70 MODULE_AUTHOR(DRIVER_AUTHOR);
  71 MODULE_DESCRIPTION(DRIVER_DESC);
  72 MODULE_LICENSE("GPL");
  73 MODULE_VERSION(CX231XX_VERSION);
  74
  75 static unsigned int card[]     = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
  76 static unsigned int video_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
  77 static unsigned int vbi_nr[]   = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
  78 static unsigned int radio_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
  79
  80 module_param_array(card, int, NULL, 0444);
  81 module_param_array(video_nr, int, NULL, 0444);
  82 module_param_array(vbi_nr, int, NULL, 0444);
  83 module_param_array(radio_nr, int, NULL, 0444);
  84
  85 MODULE_PARM_DESC(card, "card type");
  86 MODULE_PARM_DESC(video_nr, "video device numbers");
  87 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
  88 MODULE_PARM_DESC(radio_nr, "radio device numbers");
  89
  90 static unsigned int video_debug;
  91 module_param(video_debug, int, 0644);
  92 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
  93
  94 /* supported video standards */
  95 static struct cx231xx_fmt format[] = {
  96         {
  97          .name = "16bpp YUY2, 4:2:2, packed",
  98          .fourcc = V4L2_PIX_FMT_YUYV,
  99          .depth = 16,
 100          .reg = 0,
 101          },
 102 };
 103
 104
 105 /* ------------------------------------------------------------------
 106         Video buffer and parser functions
 107    ------------------------------------------------------------------*/
 108
 109 /*
 110  * Announces that a buffer were filled and request the next
 111  */
 112 static inline void buffer_filled(struct cx231xx *dev,
 113                                  struct cx231xx_dmaqueue *dma_q,
 114                                  struct cx231xx_buffer *buf)
 115 {
 116         /* Advice that buffer was filled */
 117         cx231xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
 118         buf->vb.state = VIDEOBUF_DONE;
 119         buf->vb.field_count++;
 120         v4l2_get_timestamp(&buf->vb.ts);
 121
 122         if (dev->USE_ISO)
 123                 dev->video_mode.isoc_ctl.buf = NULL;
 124         else
 125                 dev->video_mode.bulk_ctl.buf = NULL;
 126
 127         list_del(&buf->vb.queue);
 128         wake_up(&buf->vb.done);
 129 }
 130
 131 static inline void print_err_status(struct cx231xx *dev, int packet, int status)
 132 {
 133         char *errmsg = "Unknown";
 134
 135         switch (status) {
 136         case -ENOENT:
 137                 errmsg = "unlinked synchronuously";
 138                 break;
 139         case -ECONNRESET:
 140                 errmsg = "unlinked asynchronuously";
 141                 break;
 142         case -ENOSR:
 143                 errmsg = "Buffer error (overrun)";
 144                 break;
 145         case -EPIPE:
 146                 errmsg = "Stalled (device not responding)";
 147                 break;
 148         case -EOVERFLOW:
 149                 errmsg = "Babble (bad cable?)";
 150                 break;
 151         case -EPROTO:
 152                 errmsg = "Bit-stuff error (bad cable?)";
 153                 break;
 154         case -EILSEQ:
 155                 errmsg = "CRC/Timeout (could be anything)";
 156                 break;
 157         case -ETIME:
 158                 errmsg = "Device does not respond";
 159                 break;
 160         }
 161         if (packet < 0) {
 162                 cx231xx_isocdbg("URB status %d [%s].\n", status, errmsg);
 163         } else {
 164                 cx231xx_isocdbg("URB packet %d, status %d [%s].\n",
 165                                 packet, status, errmsg);
 166         }
 167 }
 168
 169 /*
 170  * video-buf generic routine to get the next available buffer
 171  */
 172 static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q,
 173                                 struct cx231xx_buffer **buf)
 174 {
 175         struct cx231xx_video_mode *vmode =
 176             container_of(dma_q, struct cx231xx_video_mode, vidq);
 177         struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 178
 179         char *outp;
 180
 181         if (list_empty(&dma_q->active)) {
 182                 cx231xx_isocdbg("No active queue to serve\n");
 183                 if (dev->USE_ISO)
 184                         dev->video_mode.isoc_ctl.buf = NULL;
 185                 else
 186                         dev->video_mode.bulk_ctl.buf = NULL;
 187                 *buf = NULL;
 188                 return;
 189         }
 190
 191         /* Get the next buffer */
 192         *buf = list_entry(dma_q->active.next, struct cx231xx_buffer, vb.queue);
 193
 194         /* Cleans up buffer - Useful for testing for frame/URB loss */
 195         outp = videobuf_to_vmalloc(&(*buf)->vb);
 196         memset(outp, 0, (*buf)->vb.size);
 197
 198         if (dev->USE_ISO)
 199                 dev->video_mode.isoc_ctl.buf = *buf;
 200         else
 201                 dev->video_mode.bulk_ctl.buf = *buf;
 202
 203         return;
 204 }
 205
 206 /*
 207  * Controls the isoc copy of each urb packet
 208  */
 209 static inline int cx231xx_isoc_copy(struct cx231xx *dev, struct urb *urb)
 210 {
 211         struct cx231xx_dmaqueue *dma_q = urb->context;
 212         int i, rc = 1;
 213         unsigned char *p_buffer;
 214         u32 bytes_parsed = 0, buffer_size = 0;
 215         u8 sav_eav = 0;
 216
 217         if (!dev)
 218                 return 0;
 219
 220         if (dev->state & DEV_DISCONNECTED)
 221                 return 0;
 222
 223         if (urb->status < 0) {
 224                 print_err_status(dev, -1, urb->status);
 225                 if (urb->status == -ENOENT)
 226                         return 0;
 227         }
 228
 229         for (i = 0; i < urb->number_of_packets; i++) {
 230                 int status = urb->iso_frame_desc[i].status;
 231
 232                 if (status < 0) {
 233                         print_err_status(dev, i, status);
 234                         if (urb->iso_frame_desc[i].status != -EPROTO)
 235                                 continue;
 236                 }
 237
 238                 if (urb->iso_frame_desc[i].actual_length <= 0) {
 239                         /* cx231xx_isocdbg("packet %d is empty",i); - spammy */
 240                         continue;
 241                 }
 242                 if (urb->iso_frame_desc[i].actual_length >
 243                     dev->video_mode.max_pkt_size) {
 244                         cx231xx_isocdbg("packet bigger than packet size");
 245                         continue;
 246                 }
 247
 248                 /*  get buffer pointer and length */
 249                 p_buffer = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
 250                 buffer_size = urb->iso_frame_desc[i].actual_length;
 251                 bytes_parsed = 0;
 252
 253                 if (dma_q->is_partial_line) {
 254                         /* Handle the case of a partial line */
 255                         sav_eav = dma_q->last_sav;
 256                 } else {
 257                         /* Check for a SAV/EAV overlapping
 258                                 the buffer boundary */
 259                         sav_eav =
 260                             cx231xx_find_boundary_SAV_EAV(p_buffer,
 261                                                           dma_q->partial_buf,
 262                                                           &bytes_parsed);
 263                 }
 264
 265                 sav_eav &= 0xF0;
 266                 /* Get the first line if we have some portion of an SAV/EAV from
 267                    the last buffer or a partial line  */
 268                 if (sav_eav) {
 269                         bytes_parsed += cx231xx_get_video_line(dev, dma_q,
 270                                 sav_eav,        /* SAV/EAV */
 271                                 p_buffer + bytes_parsed,        /* p_buffer */
 272                                 buffer_size - bytes_parsed);/* buf size */
 273                 }
 274
 275                 /* Now parse data that is completely in this buffer */
 276                 /* dma_q->is_partial_line = 0;  */
 277
 278                 while (bytes_parsed < buffer_size) {
 279                         u32 bytes_used = 0;
 280
 281                         sav_eav = cx231xx_find_next_SAV_EAV(
 282                                 p_buffer + bytes_parsed,        /* p_buffer */
 283                                 buffer_size - bytes_parsed,     /* buf size */
 284                                 &bytes_used);/* bytes used to get SAV/EAV */
 285
 286                         bytes_parsed += bytes_used;
 287
 288                         sav_eav &= 0xF0;
 289                         if (sav_eav && (bytes_parsed < buffer_size)) {
 290                                 bytes_parsed += cx231xx_get_video_line(dev,
 291                                         dma_q, sav_eav, /* SAV/EAV */
 292                                         p_buffer + bytes_parsed,/* p_buffer */
 293                                         buffer_size - bytes_parsed);/*buf size*/
 294                         }
 295                 }
 296
 297                 /* Save the last four bytes of the buffer so we can check the
 298                    buffer boundary condition next time */
 299                 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
 300                 bytes_parsed = 0;
 301
 302         }
 303         return rc;
 304 }
 305
 306 static inline int cx231xx_bulk_copy(struct cx231xx *dev, struct urb *urb)
 307 {
 308         struct cx231xx_dmaqueue *dma_q = urb->context;
 309         int rc = 1;
 310         unsigned char *p_buffer;
 311         u32 bytes_parsed = 0, buffer_size = 0;
 312         u8 sav_eav = 0;
 313
 314         if (!dev)
 315                 return 0;
 316
 317         if (dev->state & DEV_DISCONNECTED)
 318                 return 0;
 319
 320         if (urb->status < 0) {
 321                 print_err_status(dev, -1, urb->status);
 322                 if (urb->status == -ENOENT)
 323                         return 0;
 324         }
 325
 326         if (1) {
 327
 328                 /*  get buffer pointer and length */
 329                 p_buffer = urb->transfer_buffer;
 330                 buffer_size = urb->actual_length;
 331                 bytes_parsed = 0;
 332
 333                 if (dma_q->is_partial_line) {
 334                         /* Handle the case of a partial line */
 335                         sav_eav = dma_q->last_sav;
 336                 } else {
 337                         /* Check for a SAV/EAV overlapping
 338                                 the buffer boundary */
 339                         sav_eav =
 340                             cx231xx_find_boundary_SAV_EAV(p_buffer,
 341                                                           dma_q->partial_buf,
 342                                                           &bytes_parsed);
 343                 }
 344
 345                 sav_eav &= 0xF0;
 346                 /* Get the first line if we have some portion of an SAV/EAV from
 347                    the last buffer or a partial line  */
 348                 if (sav_eav) {
 349                         bytes_parsed += cx231xx_get_video_line(dev, dma_q,
 350                                 sav_eav,        /* SAV/EAV */
 351                                 p_buffer + bytes_parsed,        /* p_buffer */
 352                                 buffer_size - bytes_parsed);/* buf size */
 353                 }
 354
 355                 /* Now parse data that is completely in this buffer */
 356                 /* dma_q->is_partial_line = 0;  */
 357
 358                 while (bytes_parsed < buffer_size) {
 359                         u32 bytes_used = 0;
 360
 361                         sav_eav = cx231xx_find_next_SAV_EAV(
 362                                 p_buffer + bytes_parsed,        /* p_buffer */
 363                                 buffer_size - bytes_parsed,     /* buf size */
 364                                 &bytes_used);/* bytes used to get SAV/EAV */
 365
 366                         bytes_parsed += bytes_used;
 367
 368                         sav_eav &= 0xF0;
 369                         if (sav_eav && (bytes_parsed < buffer_size)) {
 370                                 bytes_parsed += cx231xx_get_video_line(dev,
 371                                         dma_q, sav_eav, /* SAV/EAV */
 372                                         p_buffer + bytes_parsed,/* p_buffer */
 373                                         buffer_size - bytes_parsed);/*buf size*/
 374                         }
 375                 }
 376
 377                 /* Save the last four bytes of the buffer so we can check the
 378                    buffer boundary condition next time */
 379                 memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
 380                 bytes_parsed = 0;
 381
 382         }
 383         return rc;
 384 }
 385
 386
 387 u8 cx231xx_find_boundary_SAV_EAV(u8 *p_buffer, u8 *partial_buf,
 388                                  u32 *p_bytes_used)
 389 {
 390         u32 bytes_used;
 391         u8 boundary_bytes[8];
 392         u8 sav_eav = 0;
 393
 394         *p_bytes_used = 0;
 395
 396         /* Create an array of the last 4 bytes of the last buffer and the first
 397            4 bytes of the current buffer. */
 398
 399         memcpy(boundary_bytes, partial_buf, 4);
 400         memcpy(boundary_bytes + 4, p_buffer, 4);
 401
 402         /* Check for the SAV/EAV in the boundary buffer */
 403         sav_eav = cx231xx_find_next_SAV_EAV((u8 *)&boundary_bytes, 8,
 404                                             &bytes_used);
 405
 406         if (sav_eav) {
 407                 /* found a boundary SAV/EAV.  Updates the bytes used to reflect
 408                    only those used in the new buffer */
 409                 *p_bytes_used = bytes_used - 4;
 410         }
 411
 412         return sav_eav;
 413 }
 414
 415 u8 cx231xx_find_next_SAV_EAV(u8 *p_buffer, u32 buffer_size, u32 *p_bytes_used)
 416 {
 417         u32 i;
 418         u8 sav_eav = 0;
 419
 420         /*
 421          * Don't search if the buffer size is less than 4.  It causes a page
 422          * fault since buffer_size - 4 evaluates to a large number in that
 423          * case.
 424          */
 425         if (buffer_size < 4) {
 426                 *p_bytes_used = buffer_size;
 427                 return 0;
 428         }
 429
 430         for (i = 0; i < (buffer_size - 3); i++) {
 431
 432                 if ((p_buffer[i] == 0xFF) &&
 433                     (p_buffer[i + 1] == 0x00) && (p_buffer[i + 2] == 0x00)) {
 434
 435                         *p_bytes_used = i + 4;
 436                         sav_eav = p_buffer[i + 3];
 437                         return sav_eav;
 438                 }
 439         }
 440
 441         *p_bytes_used = buffer_size;
 442         return 0;
 443 }
 444
 445 u32 cx231xx_get_video_line(struct cx231xx *dev,
 446                            struct cx231xx_dmaqueue *dma_q, u8 sav_eav,
 447                            u8 *p_buffer, u32 buffer_size)
 448 {
 449         u32 bytes_copied = 0;
 450         int current_field = -1;
 451
 452         switch (sav_eav) {
 453         case SAV_ACTIVE_VIDEO_FIELD1:
 454                 /* looking for skipped line which occurred in PAL 720x480 mode.
 455                    In this case, there will be no active data contained
 456                    between the SAV and EAV */
 457                 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
 458                     (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
 459                     ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
 460                      (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
 461                      (p_buffer[3] == EAV_VBLANK_FIELD1) ||
 462                      (p_buffer[3] == EAV_VBLANK_FIELD2)))
 463                         return bytes_copied;
 464                 current_field = 1;
 465                 break;
 466
 467         case SAV_ACTIVE_VIDEO_FIELD2:
 468                 /* looking for skipped line which occurred in PAL 720x480 mode.
 469                    In this case, there will be no active data contained between
 470                    the SAV and EAV */
 471                 if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
 472                     (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
 473                     ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
 474                      (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
 475                      (p_buffer[3] == EAV_VBLANK_FIELD1)       ||
 476                      (p_buffer[3] == EAV_VBLANK_FIELD2)))
 477                         return bytes_copied;
 478                 current_field = 2;
 479                 break;
 480         }
 481
 482         dma_q->last_sav = sav_eav;
 483
 484         bytes_copied = cx231xx_copy_video_line(dev, dma_q, p_buffer,
 485                                                buffer_size, current_field);
 486
 487         return bytes_copied;
 488 }
 489
 490 u32 cx231xx_copy_video_line(struct cx231xx *dev,
 491                             struct cx231xx_dmaqueue *dma_q, u8 *p_line,
 492                             u32 length, int field_number)
 493 {
 494         u32 bytes_to_copy;
 495         struct cx231xx_buffer *buf;
 496         u32 _line_size = dev->width * 2;
 497
 498         if (dma_q->current_field != field_number)
 499                 cx231xx_reset_video_buffer(dev, dma_q);
 500
 501         /* get the buffer pointer */
 502         if (dev->USE_ISO)
 503                 buf = dev->video_mode.isoc_ctl.buf;
 504         else
 505                 buf = dev->video_mode.bulk_ctl.buf;
 506
 507         /* Remember the field number for next time */
 508         dma_q->current_field = field_number;
 509
 510         bytes_to_copy = dma_q->bytes_left_in_line;
 511         if (bytes_to_copy > length)
 512                 bytes_to_copy = length;
 513
 514         if (dma_q->lines_completed >= dma_q->lines_per_field) {
 515                 dma_q->bytes_left_in_line -= bytes_to_copy;
 516                 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ?
 517                                           0 : 1;
 518                 return 0;
 519         }
 520
 521         dma_q->is_partial_line = 1;
 522
 523         /* If we don't have a buffer, just return the number of bytes we would
 524            have copied if we had a buffer. */
 525         if (!buf) {
 526                 dma_q->bytes_left_in_line -= bytes_to_copy;
 527                 dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0)
 528                                          ? 0 : 1;
 529                 return bytes_to_copy;
 530         }
 531
 532         /* copy the data to video buffer */
 533         cx231xx_do_copy(dev, dma_q, p_line, bytes_to_copy);
 534
 535         dma_q->pos += bytes_to_copy;
 536         dma_q->bytes_left_in_line -= bytes_to_copy;
 537
 538         if (dma_q->bytes_left_in_line == 0) {
 539                 dma_q->bytes_left_in_line = _line_size;
 540                 dma_q->lines_completed++;
 541                 dma_q->is_partial_line = 0;
 542
 543                 if (cx231xx_is_buffer_done(dev, dma_q) && buf) {
 544                         buffer_filled(dev, dma_q, buf);
 545
 546                         dma_q->pos = 0;
 547                         buf = NULL;
 548                         dma_q->lines_completed = 0;
 549                 }
 550         }
 551
 552         return bytes_to_copy;
 553 }
 554
 555 void cx231xx_reset_video_buffer(struct cx231xx *dev,
 556                                 struct cx231xx_dmaqueue *dma_q)
 557 {
 558         struct cx231xx_buffer *buf;
 559
 560         /* handle the switch from field 1 to field 2 */
 561         if (dma_q->current_field == 1) {
 562                 if (dma_q->lines_completed >= dma_q->lines_per_field)
 563                         dma_q->field1_done = 1;
 564                 else
 565                         dma_q->field1_done = 0;
 566         }
 567
 568         if (dev->USE_ISO)
 569                 buf = dev->video_mode.isoc_ctl.buf;
 570         else
 571                 buf = dev->video_mode.bulk_ctl.buf;
 572
 573         if (buf == NULL) {
 574                 /* first try to get the buffer */
 575                 get_next_buf(dma_q, &buf);
 576
 577                 dma_q->pos = 0;
 578                 dma_q->field1_done = 0;
 579                 dma_q->current_field = -1;
 580         }
 581
 582         /* reset the counters */
 583         dma_q->bytes_left_in_line = dev->width << 1;
 584         dma_q->lines_completed = 0;
 585 }
 586
 587 int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
 588                     u8 *p_buffer, u32 bytes_to_copy)
 589 {
 590         u8 *p_out_buffer = NULL;
 591         u32 current_line_bytes_copied = 0;
 592         struct cx231xx_buffer *buf;
 593         u32 _line_size = dev->width << 1;
 594         void *startwrite;
 595         int offset, lencopy;
 596
 597         if (dev->USE_ISO)
 598                 buf = dev->video_mode.isoc_ctl.buf;
 599         else
 600                 buf = dev->video_mode.bulk_ctl.buf;
 601
 602         if (buf == NULL)
 603                 return -1;
 604
 605         p_out_buffer = videobuf_to_vmalloc(&buf->vb);
 606
 607         current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line;
 608
 609         /* Offset field 2 one line from the top of the buffer */
 610         offset = (dma_q->current_field == 1) ? 0 : _line_size;
 611
 612         /* Offset for field 2 */
 613         startwrite = p_out_buffer + offset;
 614
 615         /* lines already completed in the current field */
 616         startwrite += (dma_q->lines_completed * _line_size * 2);
 617
 618         /* bytes already completed in the current line */
 619         startwrite += current_line_bytes_copied;
 620
 621         lencopy = dma_q->bytes_left_in_line > bytes_to_copy ?
 622                   bytes_to_copy : dma_q->bytes_left_in_line;
 623
 624         if ((u8 *)(startwrite + lencopy) > (u8 *)(p_out_buffer + buf->vb.size))
 625                 return 0;
 626
 627         /* The below copies the UYVY data straight into video buffer */
 628         cx231xx_swab((u16 *) p_buffer, (u16 *) startwrite, (u16) lencopy);
 629
 630         return 0;
 631 }
 632
 633 void cx231xx_swab(u16 *from, u16 *to, u16 len)
 634 {
 635         u16 i;
 636
 637         if (len <= 0)
 638                 return;
 639
 640         for (i = 0; i < len / 2; i++)
 641                 to[i] = (from[i] << 8) | (from[i] >> 8);
 642 }
 643
 644 u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q)
 645 {
 646         u8 buffer_complete = 0;
 647
 648         /* Dual field stream */
 649         buffer_complete = ((dma_q->current_field == 2) &&
 650                            (dma_q->lines_completed >= dma_q->lines_per_field) &&
 651                             dma_q->field1_done);
 652
 653         return buffer_complete;
 654 }
 655
 656 /* ------------------------------------------------------------------
 657         Videobuf operations
 658    ------------------------------------------------------------------*/
 659
 660 static int
 661 buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
 662 {
 663         struct cx231xx_fh *fh = vq->priv_data;
 664         struct cx231xx *dev = fh->dev;
 665
 666         *size = (fh->dev->width * fh->dev->height * dev->format->depth + 7)>>3;
 667         if (0 == *count)
 668                 *count = CX231XX_DEF_BUF;
 669
 670         if (*count < CX231XX_MIN_BUF)
 671                 *count = CX231XX_MIN_BUF;
 672
 673         return 0;
 674 }
 675
 676 /* This is called *without* dev->slock held; please keep it that way */
 677 static void free_buffer(struct videobuf_queue *vq, struct cx231xx_buffer *buf)
 678 {
 679         struct cx231xx_fh *fh = vq->priv_data;
 680         struct cx231xx *dev = fh->dev;
 681         unsigned long flags = 0;
 682
 683         if (in_interrupt())
 684                 BUG();
 685
 686         /* We used to wait for the buffer to finish here, but this didn't work
 687            because, as we were keeping the state as VIDEOBUF_QUEUED,
 688            videobuf_queue_cancel marked it as finished for us.
 689            (Also, it could wedge forever if the hardware was misconfigured.)
 690
 691            This should be safe; by the time we get here, the buffer isn't
 692            queued anymore. If we ever start marking the buffers as
 693            VIDEOBUF_ACTIVE, it won't be, though.
 694          */
 695         spin_lock_irqsave(&dev->video_mode.slock, flags);
 696         if (dev->USE_ISO) {
 697                 if (dev->video_mode.isoc_ctl.buf == buf)
 698                         dev->video_mode.isoc_ctl.buf = NULL;
 699         } else {
 700                 if (dev->video_mode.bulk_ctl.buf == buf)
 701                         dev->video_mode.bulk_ctl.buf = NULL;
 702         }
 703         spin_unlock_irqrestore(&dev->video_mode.slock, flags);
 704
 705         videobuf_vmalloc_free(&buf->vb);
 706         buf->vb.state = VIDEOBUF_NEEDS_INIT;
 707 }
 708
 709 static int
 710 buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
 711                enum v4l2_field field)
 712 {
 713         struct cx231xx_fh *fh = vq->priv_data;
 714         struct cx231xx_buffer *buf =
 715             container_of(vb, struct cx231xx_buffer, vb);
 716         struct cx231xx *dev = fh->dev;
 717         int rc = 0, urb_init = 0;
 718
 719         /* The only currently supported format is 16 bits/pixel */
 720         buf->vb.size = (fh->dev->width * fh->dev->height * dev->format->depth
 721                         + 7) >> 3;
 722         if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
 723                 return -EINVAL;
 724
 725         buf->vb.width = dev->width;
 726         buf->vb.height = dev->height;
 727         buf->vb.field = field;
 728
 729         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
 730                 rc = videobuf_iolock(vq, &buf->vb, NULL);
 731                 if (rc < 0)
 732                         goto fail;
 733         }
 734
 735         if (dev->USE_ISO) {
 736                 if (!dev->video_mode.isoc_ctl.num_bufs)
 737                         urb_init = 1;
 738         } else {
 739                 if (!dev->video_mode.bulk_ctl.num_bufs)
 740                         urb_init = 1;
 741         }
 742         /*cx231xx_info("urb_init=%d dev->video_mode.max_pkt_size=%d\n",
 743                 urb_init, dev->video_mode.max_pkt_size);*/
 744         if (urb_init) {
 745                 dev->mode_tv = 0;
 746                 if (dev->USE_ISO)
 747                         rc = cx231xx_init_isoc(dev, CX231XX_NUM_PACKETS,
 748                                        CX231XX_NUM_BUFS,
 749                                        dev->video_mode.max_pkt_size,
 750                                        cx231xx_isoc_copy);
 751                 else
 752                         rc = cx231xx_init_bulk(dev, CX231XX_NUM_PACKETS,
 753                                        CX231XX_NUM_BUFS,
 754                                        dev->video_mode.max_pkt_size,
 755                                        cx231xx_bulk_copy);
 756                 if (rc < 0)
 757                         goto fail;
 758         }
 759
 760         buf->vb.state = VIDEOBUF_PREPARED;
 761         return 0;
 762
 763 fail:
 764         free_buffer(vq, buf);
 765         return rc;
 766 }
 767
 768 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 769 {
 770         struct cx231xx_buffer *buf =
 771             container_of(vb, struct cx231xx_buffer, vb);
 772         struct cx231xx_fh *fh = vq->priv_data;
 773         struct cx231xx *dev = fh->dev;
 774         struct cx231xx_dmaqueue *vidq = &dev->video_mode.vidq;
 775
 776         buf->vb.state = VIDEOBUF_QUEUED;
 777         list_add_tail(&buf->vb.queue, &vidq->active);
 778
 779 }
 780
 781 static void buffer_release(struct videobuf_queue *vq,
 782                            struct videobuf_buffer *vb)
 783 {
 784         struct cx231xx_buffer *buf =
 785             container_of(vb, struct cx231xx_buffer, vb);
 786         struct cx231xx_fh *fh = vq->priv_data;
 787         struct cx231xx *dev = (struct cx231xx *)fh->dev;
 788
 789         cx231xx_isocdbg("cx231xx: called buffer_release\n");
 790
 791         free_buffer(vq, buf);
 792 }
 793
 794 static struct videobuf_queue_ops cx231xx_video_qops = {
 795         .buf_setup = buffer_setup,
 796         .buf_prepare = buffer_prepare,
 797         .buf_queue = buffer_queue,
 798         .buf_release = buffer_release,
 799 };
 800
 801 /*********************  v4l2 interface  **************************************/
 802
 803 void video_mux(struct cx231xx *dev, int index)
 804 {
 805         dev->video_input = index;
 806         dev->ctl_ainput = INPUT(index)->amux;
 807
 808         cx231xx_set_video_input_mux(dev, index);
 809
 810         cx25840_call(dev, video, s_routing, INPUT(index)->vmux, 0, 0);
 811
 812         cx231xx_set_audio_input(dev, dev->ctl_ainput);
 813
 814         cx231xx_info("video_mux : %d\n", index);
 815
 816         /* do mode control overrides if required */
 817         cx231xx_do_mode_ctrl_overrides(dev);
 818 }
 819
 820 /* Usage lock check functions */
 821 static int res_get(struct cx231xx_fh *fh)
 822 {
 823         struct cx231xx *dev = fh->dev;
 824         int rc = 0;
 825
 826         /* This instance already has stream_on */
 827         if (fh->stream_on)
 828                 return rc;
 829
 830         if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 831                 if (dev->stream_on)
 832                         return -EBUSY;
 833                 dev->stream_on = 1;
 834         } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
 835                 if (dev->vbi_stream_on)
 836                         return -EBUSY;
 837                 dev->vbi_stream_on = 1;
 838         } else
 839                 return -EINVAL;
 840
 841         fh->stream_on = 1;
 842
 843         return rc;
 844 }
 845
 846 static int res_check(struct cx231xx_fh *fh)
 847 {
 848         return fh->stream_on;
 849 }
 850
 851 static void res_free(struct cx231xx_fh *fh)
 852 {
 853         struct cx231xx *dev = fh->dev;
 854
 855         fh->stream_on = 0;
 856
 857         if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 858                 dev->stream_on = 0;
 859         if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
 860                 dev->vbi_stream_on = 0;
 861 }
 862
 863 static int check_dev(struct cx231xx *dev)
 864 {
 865         if (dev->state & DEV_DISCONNECTED) {
 866                 cx231xx_errdev("v4l2 ioctl: device not present\n");
 867                 return -ENODEV;
 868         }
 869         return 0;
 870 }
 871
 872 /* ------------------------------------------------------------------
 873         IOCTL vidioc handling
 874    ------------------------------------------------------------------*/
 875
 876 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 877                                 struct v4l2_format *f)
 878 {
 879         struct cx231xx_fh *fh = priv;
 880         struct cx231xx *dev = fh->dev;
 881
 882         f->fmt.pix.width = dev->width;
 883         f->fmt.pix.height = dev->height;
 884         f->fmt.pix.pixelformat = dev->format->fourcc;
 885         f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3;
 886         f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height;
 887         f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
 888
 889         f->fmt.pix.field = V4L2_FIELD_INTERLACED;
 890         f->fmt.pix.priv = 0;
 891
 892         return 0;
 893 }
 894
 895 static struct cx231xx_fmt *format_by_fourcc(unsigned int fourcc)
 896 {
 897         unsigned int i;
 898
 899         for (i = 0; i < ARRAY_SIZE(format); i++)
 900                 if (format[i].fourcc == fourcc)
 901                         return &format[i];
 902
 903         return NULL;
 904 }
 905
 906 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 907                                   struct v4l2_format *f)
 908 {
 909         struct cx231xx_fh *fh = priv;
 910         struct cx231xx *dev = fh->dev;
 911         unsigned int width = f->fmt.pix.width;
 912         unsigned int height = f->fmt.pix.height;
 913         unsigned int maxw = norm_maxw(dev);
 914         unsigned int maxh = norm_maxh(dev);
 915         struct cx231xx_fmt *fmt;
 916
 917         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
 918         if (!fmt) {
 919                 cx231xx_videodbg("Fourcc format (%08x) invalid.\n",
 920                                  f->fmt.pix.pixelformat);
 921                 return -EINVAL;
 922         }
 923
 924         /* width must even because of the YUYV format
 925            height must be even because of interlacing */
 926         v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh, 1, 0);
 927
 928         f->fmt.pix.width = width;
 929         f->fmt.pix.height = height;
 930         f->fmt.pix.pixelformat = fmt->fourcc;
 931         f->fmt.pix.bytesperline = (width * fmt->depth + 7) >> 3;
 932         f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height;
 933         f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
 934         f->fmt.pix.field = V4L2_FIELD_INTERLACED;
 935         f->fmt.pix.priv = 0;
 936
 937         return 0;
 938 }
 939
 940 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 941                                 struct v4l2_format *f)
 942 {
 943         struct cx231xx_fh *fh = priv;
 944         struct cx231xx *dev = fh->dev;
 945         int rc;
 946         struct cx231xx_fmt *fmt;
 947         struct v4l2_mbus_framefmt mbus_fmt;
 948
 949         rc = check_dev(dev);
 950         if (rc < 0)
 951                 return rc;
 952
 953         vidioc_try_fmt_vid_cap(file, priv, f);
 954
 955         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
 956         if (!fmt)
 957                 return -EINVAL;
 958
 959         if (videobuf_queue_is_busy(&fh->vb_vidq)) {
 960                 cx231xx_errdev("%s queue busy\n", __func__);
 961                 return -EBUSY;
 962         }
 963
 964         if (dev->stream_on && !fh->stream_on) {
 965                 cx231xx_errdev("%s device in use by another fh\n", __func__);
 966                 return -EBUSY;
 967         }
 968
 969         /* set new image size */
 970         dev->width = f->fmt.pix.width;
 971         dev->height = f->fmt.pix.height;
 972         dev->format = fmt;
 973
 974         v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
 975         call_all(dev, video, s_mbus_fmt, &mbus_fmt);
 976         v4l2_fill_pix_format(&f->fmt.pix, &mbus_fmt);
 977
 978         return rc;
 979 }
 980
 981 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
 982 {
 983         struct cx231xx_fh *fh = priv;
 984         struct cx231xx *dev = fh->dev;
 985
 986         *id = dev->norm;
 987         return 0;
 988 }
 989
 990 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm)
 991 {
 992         struct cx231xx_fh *fh = priv;
 993         struct cx231xx *dev = fh->dev;
 994         struct v4l2_mbus_framefmt mbus_fmt;
 995         int rc;
 996
 997         rc = check_dev(dev);
 998         if (rc < 0)
 999                 return rc;
1000
1001         if (dev->norm == *norm)
1002                 return 0;
1003
1004         if (videobuf_queue_is_busy(&fh->vb_vidq))
1005                 return -EBUSY;
1006
1007         dev->norm = *norm;
1008
1009         /* Adjusts width/height, if needed */
1010         dev->width = 720;
1011         dev->height = (dev->norm & V4L2_STD_625_50) ? 576 : 480;
1012
1013         call_all(dev, core, s_std, dev->norm);
1014
1015         /* We need to reset basic properties in the decoder related to
1016            resolution (since a standard change effects things like the number
1017            of lines in VACT, etc) */
1018         memset(&mbus_fmt, 0, sizeof(mbus_fmt));
1019         mbus_fmt.code = V4L2_MBUS_FMT_FIXED;
1020         mbus_fmt.width = dev->width;
1021         mbus_fmt.height = dev->height;
1022         call_all(dev, video, s_mbus_fmt, &mbus_fmt);
1023
1024         /* do mode control overrides */
1025         cx231xx_do_mode_ctrl_overrides(dev);
1026
1027         return 0;
1028 }
1029
1030 static const char *iname[] = {
1031         [CX231XX_VMUX_COMPOSITE1] = "Composite1",
1032         [CX231XX_VMUX_SVIDEO]     = "S-Video",
1033         [CX231XX_VMUX_TELEVISION] = "Television",
1034         [CX231XX_VMUX_CABLE]      = "Cable TV",
1035         [CX231XX_VMUX_DVB]        = "DVB",
1036         [CX231XX_VMUX_DEBUG]      = "for debug only",
1037 };
1038
1039 int cx231xx_enum_input(struct file *file, void *priv,
1040                              struct v4l2_input *i)
1041 {
1042         struct cx231xx_fh *fh = priv;
1043         struct cx231xx *dev = fh->dev;
1044         u32 gen_stat;
1045         unsigned int ret, n;
1046
1047         n = i->index;
1048         if (n >= MAX_CX231XX_INPUT)
1049                 return -EINVAL;
1050         if (0 == INPUT(n)->type)
1051                 return -EINVAL;
1052
1053         i->index = n;
1054         i->type = V4L2_INPUT_TYPE_CAMERA;
1055
1056         strcpy(i->name, iname[INPUT(n)->type]);
1057
1058         if ((CX231XX_VMUX_TELEVISION == INPUT(n)->type) ||
1059             (CX231XX_VMUX_CABLE == INPUT(n)->type))
1060                 i->type = V4L2_INPUT_TYPE_TUNER;
1061
1062         i->std = dev->vdev->tvnorms;
1063
1064         /* If they are asking about the active input, read signal status */
1065         if (n == dev->video_input) {
1066                 ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1067                                             GEN_STAT, 2, &gen_stat, 4);
1068                 if (ret > 0) {
1069                         if ((gen_stat & FLD_VPRES) == 0x00)
1070                                 i->status |= V4L2_IN_ST_NO_SIGNAL;
1071                         if ((gen_stat & FLD_HLOCK) == 0x00)
1072                                 i->status |= V4L2_IN_ST_NO_H_LOCK;
1073                 }
1074         }
1075
1076         return 0;
1077 }
1078
1079 int cx231xx_g_input(struct file *file, void *priv, unsigned int *i)
1080 {
1081         struct cx231xx_fh *fh = priv;
1082         struct cx231xx *dev = fh->dev;
1083
1084         *i = dev->video_input;
1085
1086         return 0;
1087 }
1088
1089 int cx231xx_s_input(struct file *file, void *priv, unsigned int i)
1090 {
1091         struct cx231xx_fh *fh = priv;
1092         struct cx231xx *dev = fh->dev;
1093         int rc;
1094
1095         dev->mode_tv = 0;
1096         rc = check_dev(dev);
1097         if (rc < 0)
1098                 return rc;
1099
1100         if (i >= MAX_CX231XX_INPUT)
1101                 return -EINVAL;
1102         if (0 == INPUT(i)->type)
1103                 return -EINVAL;
1104
1105         video_mux(dev, i);
1106
1107         if (INPUT(i)->type == CX231XX_VMUX_TELEVISION ||
1108             INPUT(i)->type == CX231XX_VMUX_CABLE) {
1109                 /* There's a tuner, so reset the standard and put it on the
1110                    last known frequency (since it was probably powered down
1111                    until now */
1112                 call_all(dev, core, s_std, dev->norm);
1113         }
1114
1115         return 0;
1116 }
1117
1118 int cx231xx_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1119 {
1120         struct cx231xx_fh *fh = priv;
1121         struct cx231xx *dev = fh->dev;
1122         int rc;
1123
1124         rc = check_dev(dev);
1125         if (rc < 0)
1126                 return rc;
1127
1128         if (0 != t->index)
1129                 return -EINVAL;
1130
1131         strcpy(t->name, "Tuner");
1132
1133         t->type = V4L2_TUNER_ANALOG_TV;
1134         t->capability = V4L2_TUNER_CAP_NORM;
1135         t->rangehigh = 0xffffffffUL;
1136         t->signal = 0xffff;     /* LOCKED */
1137         call_all(dev, tuner, g_tuner, t);
1138
1139         return 0;
1140 }
1141
1142 int cx231xx_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1143 {
1144         struct cx231xx_fh *fh = priv;
1145         struct cx231xx *dev = fh->dev;
1146         int rc;
1147
1148         rc = check_dev(dev);
1149         if (rc < 0)
1150                 return rc;
1151
1152         if (0 != t->index)
1153                 return -EINVAL;
1154 #if 0
1155         call_all(dev, tuner, s_tuner, t);
1156 #endif
1157         return 0;
1158 }
1159
1160 int cx231xx_g_frequency(struct file *file, void *priv,
1161                               struct v4l2_frequency *f)
1162 {
1163         struct cx231xx_fh *fh = priv;
1164         struct cx231xx *dev = fh->dev;
1165
1166         if (f->tuner)
1167                 return -EINVAL;
1168
1169         f->frequency = dev->ctl_freq;
1170
1171         return 0;
1172 }
1173
1174 int cx231xx_s_frequency(struct file *file, void *priv,
1175                               const struct v4l2_frequency *f)
1176 {
1177         struct cx231xx_fh *fh = priv;
1178         struct cx231xx *dev = fh->dev;
1179         struct v4l2_frequency new_freq = *f;
1180         int rc;
1181         u32 if_frequency = 5400000;
1182
1183         cx231xx_info("Enter vidioc_s_frequency()f->frequency=%d;f->type=%d\n",
1184                  f->frequency, f->type);
1185         /*cx231xx_info("f->type:  1-radio 2-analogTV 3-digitalTV\n");*/
1186
1187         rc = check_dev(dev);
1188         if (rc < 0)
1189                 return rc;
1190
1191         if (0 != f->tuner)
1192                 return -EINVAL;
1193
1194         /* set pre channel change settings in DIF first */
1195         rc = cx231xx_tuner_pre_channel_change(dev);
1196
1197         call_all(dev, tuner, s_frequency, f);
1198         call_all(dev, tuner, g_frequency, &new_freq);
1199         dev->ctl_freq = new_freq.frequency;
1200
1201         /* set post channel change settings in DIF first */
1202         rc = cx231xx_tuner_post_channel_change(dev);
1203
1204         if (dev->tuner_type == TUNER_NXP_TDA18271) {
1205                 if (dev->norm & (V4L2_STD_MN | V4L2_STD_NTSC_443))
1206                         if_frequency = 5400000;  /*5.4MHz       */
1207                 else if (dev->norm & V4L2_STD_B)
1208                         if_frequency = 6000000;  /*6.0MHz       */
1209                 else if (dev->norm & (V4L2_STD_PAL_DK | V4L2_STD_SECAM_DK))
1210                         if_frequency = 6900000;  /*6.9MHz       */
1211                 else if (dev->norm & V4L2_STD_GH)
1212                         if_frequency = 7100000;  /*7.1MHz       */
1213                 else if (dev->norm & V4L2_STD_PAL_I)
1214                         if_frequency = 7250000;  /*7.25MHz      */
1215                 else if (dev->norm & V4L2_STD_SECAM_L)
1216                         if_frequency = 6900000;  /*6.9MHz       */
1217                 else if (dev->norm & V4L2_STD_SECAM_LC)
1218                         if_frequency = 1250000;  /*1.25MHz      */
1219
1220                 cx231xx_info("if_frequency is set to %d\n", if_frequency);
1221                 cx231xx_set_Colibri_For_LowIF(dev, if_frequency, 1, 1);
1222
1223                 update_HH_register_after_set_DIF(dev);
1224         }
1225
1226         cx231xx_info("Set New FREQUENCY to %d\n", f->frequency);
1227
1228         return rc;
1229 }
1230
1231 int cx231xx_g_chip_ident(struct file *file, void *fh,
1232                         struct v4l2_dbg_chip_ident *chip)
1233 {
1234         chip->ident = V4L2_IDENT_NONE;
1235         chip->revision = 0;
1236         if (chip->match.type == V4L2_CHIP_MATCH_HOST) {
1237                 if (v4l2_chip_match_host(&chip->match))
1238                         chip->ident = V4L2_IDENT_CX23100;
1239                 return 0;
1240         }
1241         return -EINVAL;
1242 }
1243
1244 #ifdef CONFIG_VIDEO_ADV_DEBUG
1245
1246 /*
1247   -R, --list-registers=type=<host/i2cdrv/i2caddr>,
1248                                 chip=<chip>[,min=<addr>,max=<addr>]
1249                      dump registers from <min> to <max> [VIDIOC_DBG_G_REGISTER]
1250   -r, --set-register=type=<host/i2cdrv/i2caddr>,
1251                                 chip=<chip>,reg=<addr>,val=<val>
1252                      set the register [VIDIOC_DBG_S_REGISTER]
1253
1254   if type == host, then <chip> is the hosts chip ID (default 0)
1255   if type == i2cdrv (default), then <chip> is the I2C driver name or ID
1256   if type == i2caddr, then <chip> is the 7-bit I2C address
1257 */
1258
1259 int cx231xx_g_register(struct file *file, void *priv,
1260                              struct v4l2_dbg_register *reg)
1261 {
1262         struct cx231xx_fh *fh = priv;
1263         struct cx231xx *dev = fh->dev;
1264         int ret = 0;
1265         u8 value[4] = { 0, 0, 0, 0 };
1266         u32 data = 0;
1267
1268         switch (reg->match.type) {
1269         case V4L2_CHIP_MATCH_HOST:
1270                 switch (reg->match.addr) {
1271                 case 0: /* Cx231xx - internal registers */
1272                         ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
1273                                                   (u16)reg->reg, value, 4);
1274                         reg->val = value[0] | value[1] << 8 |
1275                                    value[2] << 16 | value[3] << 24;
1276                         break;
1277                 case 1: /* AFE - read byte */
1278                         ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1279                                                   (u16)reg->reg, 2, &data, 1);
1280                         reg->val = le32_to_cpu(data & 0xff);
1281                         break;
1282                 case 14: /* AFE - read dword */
1283                         ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1284                                                   (u16)reg->reg, 2, &data, 4);
1285                         reg->val = le32_to_cpu(data);
1286                         break;
1287                 case 2: /* Video Block - read byte */
1288                         ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1289                                                   (u16)reg->reg, 2, &data, 1);
1290                         reg->val = le32_to_cpu(data & 0xff);
1291                         break;
1292                 case 24: /* Video Block - read dword */
1293                         ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1294                                                   (u16)reg->reg, 2, &data, 4);
1295                         reg->val = le32_to_cpu(data);
1296                         break;
1297                 case 3: /* I2S block - read byte */
1298                         ret = cx231xx_read_i2c_data(dev,
1299                                                     I2S_BLK_DEVICE_ADDRESS,
1300                                                     (u16)reg->reg, 1,
1301                                                     &data, 1);
1302                         reg->val = le32_to_cpu(data & 0xff);
1303                         break;
1304                 case 34: /* I2S Block - read dword */
1305                         ret =
1306                             cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1307                                                   (u16)reg->reg, 1, &data, 4);
1308                         reg->val = le32_to_cpu(data);
1309                         break;
1310                 }
1311                 return ret < 0 ? ret : 0;
1312
1313         case V4L2_CHIP_MATCH_I2C_DRIVER:
1314                 call_all(dev, core, g_register, reg);
1315                 return 0;
1316         case V4L2_CHIP_MATCH_I2C_ADDR:/*for register debug*/
1317                 switch (reg->match.addr) {
1318                 case 0: /* Cx231xx - internal registers */
1319                         ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
1320                                                   (u16)reg->reg, value, 4);
1321                         reg->val = value[0] | value[1] << 8 |
1322                                    value[2] << 16 | value[3] << 24;
1323
1324                         break;
1325                 case 0x600:/* AFE - read byte */
1326                         ret = cx231xx_read_i2c_master(dev, AFE_DEVICE_ADDRESS,
1327                                                  (u16)reg->reg, 2,
1328                                                  &data, 1 , 0);
1329                         reg->val = le32_to_cpu(data & 0xff);
1330                         break;
1331
1332                 case 0x880:/* Video Block - read byte */
1333                         if (reg->reg < 0x0b) {
1334                                 ret = cx231xx_read_i2c_master(dev,
1335                                                 VID_BLK_I2C_ADDRESS,
1336                                                  (u16)reg->reg, 2,
1337                                                  &data, 1 , 0);
1338                                 reg->val = le32_to_cpu(data & 0xff);
1339                         } else {
1340                                 ret = cx231xx_read_i2c_master(dev,
1341                                                 VID_BLK_I2C_ADDRESS,
1342                                                  (u16)reg->reg, 2,
1343                                                  &data, 4 , 0);
1344                                 reg->val = le32_to_cpu(data);
1345                         }
1346                         break;
1347                 case 0x980:
1348                         ret = cx231xx_read_i2c_master(dev,
1349                                                 I2S_BLK_DEVICE_ADDRESS,
1350                                                 (u16)reg->reg, 1,
1351                                                 &data, 1 , 0);
1352                         reg->val = le32_to_cpu(data & 0xff);
1353                         break;
1354                 case 0x400:
1355                         ret =
1356                             cx231xx_read_i2c_master(dev, 0x40,
1357                                                   (u16)reg->reg, 1,
1358                                                  &data, 1 , 0);
1359                         reg->val = le32_to_cpu(data & 0xff);
1360                         break;
1361                 case 0xc01:
1362                         ret =
1363                                 cx231xx_read_i2c_master(dev, 0xc0,
1364                                                 (u16)reg->reg, 2,
1365                                                  &data, 38, 1);
1366                         reg->val = le32_to_cpu(data);
1367                         break;
1368                 case 0x022:
1369                         ret =
1370                                 cx231xx_read_i2c_master(dev, 0x02,
1371                                                 (u16)reg->reg, 1,
1372                                                  &data, 1, 2);
1373                         reg->val = le32_to_cpu(data & 0xff);
1374                         break;
1375                 case 0x322:
1376                         ret = cx231xx_read_i2c_master(dev,
1377                                                 0x32,
1378                                                  (u16)reg->reg, 1,
1379                                                  &data, 4 , 2);
1380                                 reg->val = le32_to_cpu(data);
1381                         break;
1382                 case 0x342:
1383                         ret = cx231xx_read_i2c_master(dev,
1384                                                 0x34,
1385                                                  (u16)reg->reg, 1,
1386                                                  &data, 4 , 2);
1387                                 reg->val = le32_to_cpu(data);
1388                         break;
1389
1390                 default:
1391                         cx231xx_info("no match device address!!\n");
1392                         break;
1393                         }
1394                 return ret < 0 ? ret : 0;
1395                 /*return -EINVAL;*/
1396         default:
1397                 if (!v4l2_chip_match_host(&reg->match))
1398                         return -EINVAL;
1399         }
1400
1401         call_all(dev, core, g_register, reg);
1402
1403         return ret;
1404 }
1405
1406 int cx231xx_s_register(struct file *file, void *priv,
1407                              struct v4l2_dbg_register *reg)
1408 {
1409         struct cx231xx_fh *fh = priv;
1410         struct cx231xx *dev = fh->dev;
1411         int ret = 0;
1412         __le64 buf;
1413         u32 value;
1414         u8 data[4] = { 0, 0, 0, 0 };
1415
1416         buf = cpu_to_le64(reg->val);
1417
1418         switch (reg->match.type) {
1419         case V4L2_CHIP_MATCH_HOST:
1420                 {
1421                         value = (u32) buf & 0xffffffff;
1422
1423                         switch (reg->match.addr) {
1424                         case 0: /* cx231xx internal registers */
1425                                 data[0] = (u8) value;
1426                                 data[1] = (u8) (value >> 8);
1427                                 data[2] = (u8) (value >> 16);
1428                                 data[3] = (u8) (value >> 24);
1429                                 ret = cx231xx_write_ctrl_reg(dev,
1430                                                            VRT_SET_REGISTER,
1431                                                            (u16)reg->reg, data,
1432                                                            4);
1433                                 break;
1434                         case 1: /* AFE - read byte */
1435                                 ret = cx231xx_write_i2c_data(dev,
1436                                                         AFE_DEVICE_ADDRESS,
1437                                                         (u16)reg->reg, 2,
1438                                                         value, 1);
1439                                 break;
1440                         case 14: /* AFE - read dword */
1441                                 ret = cx231xx_write_i2c_data(dev,
1442                                                         AFE_DEVICE_ADDRESS,
1443                                                         (u16)reg->reg, 2,
1444                                                         value, 4);
1445                                 break;
1446                         case 2: /* Video Block - read byte */
1447                                 ret =
1448                                     cx231xx_write_i2c_data(dev,
1449                                                         VID_BLK_I2C_ADDRESS,
1450                                                         (u16)reg->reg, 2,
1451                                                         value, 1);
1452                                 break;
1453                         case 24: /* Video Block - read dword */
1454                                 ret =
1455                                     cx231xx_write_i2c_data(dev,
1456                                                         VID_BLK_I2C_ADDRESS,
1457                                                         (u16)reg->reg, 2,
1458                                                         value, 4);
1459                                 break;
1460                         case 3: /* I2S block - read byte */
1461                                 ret =
1462                                     cx231xx_write_i2c_data(dev,
1463                                                         I2S_BLK_DEVICE_ADDRESS,
1464                                                         (u16)reg->reg, 1,
1465                                                         value, 1);
1466                                 break;
1467                         case 34: /* I2S block - read dword */
1468                                 ret =
1469                                     cx231xx_write_i2c_data(dev,
1470                                                         I2S_BLK_DEVICE_ADDRESS,
1471                                                         (u16)reg->reg, 1,
1472                                                         value, 4);
1473                                 break;
1474                         }
1475                 }
1476                 return ret < 0 ? ret : 0;
1477         case V4L2_CHIP_MATCH_I2C_ADDR:
1478                 {
1479                         value = (u32) buf & 0xffffffff;
1480
1481                         switch (reg->match.addr) {
1482                         case 0:/*cx231xx internal registers*/
1483                                         data[0] = (u8) value;
1484                                         data[1] = (u8) (value >> 8);
1485                                         data[2] = (u8) (value >> 16);
1486                                         data[3] = (u8) (value >> 24);
1487                                         ret = cx231xx_write_ctrl_reg(dev,
1488                                                            VRT_SET_REGISTER,
1489                                                            (u16)reg->reg, data,
1490                                                            4);
1491                                         break;
1492                         case 0x600:/* AFE - read byte */
1493                                         ret = cx231xx_write_i2c_master(dev,
1494                                                         AFE_DEVICE_ADDRESS,
1495                                                         (u16)reg->reg, 2,
1496                                                         value, 1 , 0);
1497                                         break;
1498
1499                         case 0x880:/* Video Block - read byte */
1500                                         if (reg->reg < 0x0b)
1501                                                 cx231xx_write_i2c_master(dev,
1502                                                         VID_BLK_I2C_ADDRESS,
1503                                                         (u16)reg->reg, 2,
1504                                                         value, 1, 0);
1505                                         else
1506                                                 cx231xx_write_i2c_master(dev,
1507                                                         VID_BLK_I2C_ADDRESS,
1508                                                         (u16)reg->reg, 2,
1509                                                         value, 4, 0);
1510                                         break;
1511                         case 0x980:
1512                                         ret =
1513                                                 cx231xx_write_i2c_master(dev,
1514                                                         I2S_BLK_DEVICE_ADDRESS,
1515                                                         (u16)reg->reg, 1,
1516                                                         value, 1, 0);
1517                                         break;
1518                         case 0x400:
1519                                         ret =
1520                                                 cx231xx_write_i2c_master(dev,
1521                                                         0x40,
1522                                                         (u16)reg->reg, 1,
1523                                                         value, 1, 0);
1524                                         break;
1525                         case 0xc01:
1526                                         ret =
1527                                                 cx231xx_write_i2c_master(dev,
1528                                                          0xc0,
1529                                                          (u16)reg->reg, 1,
1530                                                          value, 1, 1);
1531                                         break;
1532
1533                         case 0x022:
1534                                         ret =
1535                                                 cx231xx_write_i2c_master(dev,
1536                                                         0x02,
1537                                                         (u16)reg->reg, 1,
1538                                                         value, 1, 2);
1539                                         break;
1540                         case 0x322:
1541                                         ret =
1542                                                 cx231xx_write_i2c_master(dev,
1543                                                         0x32,
1544                                                         (u16)reg->reg, 1,
1545                                                         value, 4, 2);
1546                                         break;
1547
1548                         case 0x342:
1549                                         ret =
1550                                                 cx231xx_write_i2c_master(dev,
1551                                                         0x34,
1552                                                         (u16)reg->reg, 1,
1553                                                         value, 4, 2);
1554                                         break;
1555                         default:
1556                                 cx231xx_info("no match device address, "
1557                                         "the value is %x\n", reg->match.addr);
1558                                         break;
1559
1560                                         }
1561
1562                 }
1563         default:
1564                 break;
1565         }
1566
1567         call_all(dev, core, s_register, reg);
1568
1569         return ret;
1570 }
1571 #endif
1572
1573 static int vidioc_cropcap(struct file *file, void *priv,
1574                           struct v4l2_cropcap *cc)
1575 {
1576         struct cx231xx_fh *fh = priv;
1577         struct cx231xx *dev = fh->dev;
1578
1579         if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1580                 return -EINVAL;
1581
1582         cc->bounds.left = 0;
1583         cc->bounds.top = 0;
1584         cc->bounds.width = dev->width;
1585         cc->bounds.height = dev->height;
1586         cc->defrect = cc->bounds;
1587         cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */
1588         cc->pixelaspect.denominator = 59;
1589
1590         return 0;
1591 }
1592
1593 static int vidioc_streamon(struct file *file, void *priv,
1594                            enum v4l2_buf_type type)
1595 {
1596         struct cx231xx_fh *fh = priv;
1597         struct cx231xx *dev = fh->dev;
1598         int rc;
1599
1600         rc = check_dev(dev);
1601         if (rc < 0)
1602                 return rc;
1603
1604         rc = res_get(fh);
1605
1606         if (likely(rc >= 0))
1607                 rc = videobuf_streamon(&fh->vb_vidq);
1608
1609         call_all(dev, video, s_stream, 1);
1610
1611         return rc;
1612 }
1613
1614 static int vidioc_streamoff(struct file *file, void *priv,
1615                             enum v4l2_buf_type type)
1616 {
1617         struct cx231xx_fh *fh = priv;
1618         struct cx231xx *dev = fh->dev;
1619         int rc;
1620
1621         rc = check_dev(dev);
1622         if (rc < 0)
1623                 return rc;
1624
1625         if (type != fh->type)
1626                 return -EINVAL;
1627
1628         cx25840_call(dev, video, s_stream, 0);
1629
1630         videobuf_streamoff(&fh->vb_vidq);
1631         res_free(fh);
1632
1633         return 0;
1634 }
1635
1636 int cx231xx_querycap(struct file *file, void *priv,
1637                            struct v4l2_capability *cap)
1638 {
1639         struct video_device *vdev = video_devdata(file);
1640         struct cx231xx_fh *fh = priv;
1641         struct cx231xx *dev = fh->dev;
1642
1643         strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
1644         strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
1645         usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
1646
1647         if (vdev->vfl_type == VFL_TYPE_RADIO)
1648                 cap->device_caps = V4L2_CAP_RADIO;
1649         else {
1650                 cap->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
1651                 if (vdev->vfl_type == VFL_TYPE_VBI)
1652                         cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
1653                 else
1654                         cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
1655         }
1656         if (dev->tuner_type != TUNER_ABSENT)
1657                 cap->device_caps |= V4L2_CAP_TUNER;
1658         cap->capabilities = cap->device_caps | V4L2_CAP_READWRITE |
1659                 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE |
1660                 V4L2_CAP_STREAMING | V4L2_CAP_DEVICE_CAPS;
1661         if (dev->radio_dev)
1662                 cap->capabilities |= V4L2_CAP_RADIO;
1663
1664         return 0;
1665 }
1666
1667 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1668                                    struct v4l2_fmtdesc *f)
1669 {
1670         if (unlikely(f->index >= ARRAY_SIZE(format)))
1671                 return -EINVAL;
1672
1673         strlcpy(f->description, format[f->index].name, sizeof(f->description));
1674         f->pixelformat = format[f->index].fourcc;
1675
1676         return 0;
1677 }
1678
1679 /* RAW VBI ioctls */
1680
1681 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1682                                 struct v4l2_format *f)
1683 {
1684         struct cx231xx_fh *fh = priv;
1685         struct cx231xx *dev = fh->dev;
1686
1687         f->fmt.vbi.sampling_rate = 6750000 * 4;
1688         f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1689         f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1690         f->fmt.vbi.offset = 0;
1691         f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1692             PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1693         f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1694             PAL_VBI_LINES : NTSC_VBI_LINES;
1695         f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1696             PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1697         f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1698         memset(f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
1699
1700         return 0;
1701
1702 }
1703
1704 static int vidioc_try_fmt_vbi_cap(struct file *file, void *priv,
1705                                   struct v4l2_format *f)
1706 {
1707         struct cx231xx_fh *fh = priv;
1708         struct cx231xx *dev = fh->dev;
1709
1710         f->fmt.vbi.sampling_rate = 6750000 * 4;
1711         f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1712         f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1713         f->fmt.vbi.offset = 0;
1714         f->fmt.vbi.flags = 0;
1715         f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1716             PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1717         f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1718             PAL_VBI_LINES : NTSC_VBI_LINES;
1719         f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1720             PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1721         f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1722         memset(f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
1723
1724         return 0;
1725
1726 }
1727
1728 static int vidioc_s_fmt_vbi_cap(struct file *file, void *priv,
1729                                   struct v4l2_format *f)
1730 {
1731         struct cx231xx_fh *fh = priv;
1732         struct cx231xx *dev = fh->dev;
1733
1734         if (dev->vbi_stream_on && !fh->stream_on) {
1735                 cx231xx_errdev("%s device in use by another fh\n", __func__);
1736                 return -EBUSY;
1737         }
1738         return vidioc_try_fmt_vbi_cap(file, priv, f);
1739 }
1740
1741 static int vidioc_reqbufs(struct file *file, void *priv,
1742                           struct v4l2_requestbuffers *rb)
1743 {
1744         struct cx231xx_fh *fh = priv;
1745         struct cx231xx *dev = fh->dev;
1746         int rc;
1747
1748         rc = check_dev(dev);
1749         if (rc < 0)
1750                 return rc;
1751
1752         return videobuf_reqbufs(&fh->vb_vidq, rb);
1753 }
1754
1755 static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *b)
1756 {
1757         struct cx231xx_fh *fh = priv;
1758         struct cx231xx *dev = fh->dev;
1759         int rc;
1760
1761         rc = check_dev(dev);
1762         if (rc < 0)
1763                 return rc;
1764
1765         return videobuf_querybuf(&fh->vb_vidq, b);
1766 }
1767
1768 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
1769 {
1770         struct cx231xx_fh *fh = priv;
1771         struct cx231xx *dev = fh->dev;
1772         int rc;
1773
1774         rc = check_dev(dev);
1775         if (rc < 0)
1776                 return rc;
1777
1778         return videobuf_qbuf(&fh->vb_vidq, b);
1779 }
1780
1781 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
1782 {
1783         struct cx231xx_fh *fh = priv;
1784         struct cx231xx *dev = fh->dev;
1785         int rc;
1786
1787         rc = check_dev(dev);
1788         if (rc < 0)
1789                 return rc;
1790
1791         return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK);
1792 }
1793
1794 /* ----------------------------------------------------------- */
1795 /* RADIO ESPECIFIC IOCTLS                                      */
1796 /* ----------------------------------------------------------- */
1797
1798 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1799 {
1800         struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
1801
1802         if (t->index)
1803                 return -EINVAL;
1804
1805         strcpy(t->name, "Radio");
1806
1807         call_all(dev, tuner, g_tuner, t);
1808
1809         return 0;
1810 }
1811 static int radio_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1812 {
1813         struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
1814
1815         if (t->index)
1816                 return -EINVAL;
1817
1818         call_all(dev, tuner, s_tuner, t);
1819
1820         return 0;
1821 }
1822
1823 /*
1824  * cx231xx_v4l2_open()
1825  * inits the device and starts isoc transfer
1826  */
1827 static int cx231xx_v4l2_open(struct file *filp)
1828 {
1829         int errCode = 0, radio = 0;
1830         struct video_device *vdev = video_devdata(filp);
1831         struct cx231xx *dev = video_drvdata(filp);
1832         struct cx231xx_fh *fh;
1833         enum v4l2_buf_type fh_type = 0;
1834
1835         switch (vdev->vfl_type) {
1836         case VFL_TYPE_GRABBER:
1837                 fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1838                 break;
1839         case VFL_TYPE_VBI:
1840                 fh_type = V4L2_BUF_TYPE_VBI_CAPTURE;
1841                 break;
1842         case VFL_TYPE_RADIO:
1843                 radio = 1;
1844                 break;
1845         }
1846
1847         cx231xx_videodbg("open dev=%s type=%s users=%d\n",
1848                          video_device_node_name(vdev), v4l2_type_names[fh_type],
1849                          dev->users);
1850
1851 #if 0
1852         errCode = cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
1853         if (errCode < 0) {
1854                 cx231xx_errdev
1855                     ("Device locked on digital mode. Can't open analog\n");
1856                 return -EBUSY;
1857         }
1858 #endif
1859
1860         fh = kzalloc(sizeof(struct cx231xx_fh), GFP_KERNEL);
1861         if (!fh) {
1862                 cx231xx_errdev("cx231xx-video.c: Out of memory?!\n");
1863                 return -ENOMEM;
1864         }
1865         if (mutex_lock_interruptible(&dev->lock)) {
1866                 kfree(fh);
1867                 return -ERESTARTSYS;
1868         }
1869         fh->dev = dev;
1870         fh->type = fh_type;
1871         filp->private_data = fh;
1872         v4l2_fh_init(&fh->fh, vdev);
1873
1874         if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
1875                 /* Power up in Analog TV mode */
1876                 if (dev->board.external_av)
1877                         cx231xx_set_power_mode(dev,
1878                                  POLARIS_AVMODE_ENXTERNAL_AV);
1879                 else
1880                         cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV);
1881
1882 #if 0
1883                 cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
1884 #endif
1885
1886                 /* set video alternate setting */
1887                 cx231xx_set_video_alternate(dev);
1888
1889                 /* Needed, since GPIO might have disabled power of
1890                    some i2c device */
1891                 cx231xx_config_i2c(dev);
1892
1893                 /* device needs to be initialized before isoc transfer */
1894                 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1895
1896         }
1897         if (radio) {
1898                 cx231xx_videodbg("video_open: setting radio device\n");
1899
1900                 /* cx231xx_start_radio(dev); */
1901
1902                 call_all(dev, tuner, s_radio);
1903         }
1904
1905         dev->users++;
1906
1907         if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1908                 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_video_qops,
1909                                             NULL, &dev->video_mode.slock,
1910                                             fh->type, V4L2_FIELD_INTERLACED,
1911                                             sizeof(struct cx231xx_buffer),
1912                                             fh, &dev->lock);
1913         if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
1914                 /* Set the required alternate setting  VBI interface works in
1915                    Bulk mode only */
1916                 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1917
1918                 videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_vbi_qops,
1919                                             NULL, &dev->vbi_mode.slock,
1920                                             fh->type, V4L2_FIELD_SEQ_TB,
1921                                             sizeof(struct cx231xx_buffer),
1922                                             fh, &dev->lock);
1923         }
1924         mutex_unlock(&dev->lock);
1925         v4l2_fh_add(&fh->fh);
1926
1927         return errCode;
1928 }
1929
1930 /*
1931  * cx231xx_realease_resources()
1932  * unregisters the v4l2,i2c and usb devices
1933  * called when the device gets disconected or at module unload
1934 */
1935 void cx231xx_release_analog_resources(struct cx231xx *dev)
1936 {
1937
1938         /*FIXME: I2C IR should be disconnected */
1939
1940         if (dev->radio_dev) {
1941                 if (video_is_registered(dev->radio_dev))
1942                         video_unregister_device(dev->radio_dev);
1943                 else
1944                         video_device_release(dev->radio_dev);
1945                 dev->radio_dev = NULL;
1946         }
1947         if (dev->vbi_dev) {
1948                 cx231xx_info("V4L2 device %s deregistered\n",
1949                              video_device_node_name(dev->vbi_dev));
1950                 if (video_is_registered(dev->vbi_dev))
1951                         video_unregister_device(dev->vbi_dev);
1952                 else
1953                         video_device_release(dev->vbi_dev);
1954                 dev->vbi_dev = NULL;
1955         }
1956         if (dev->vdev) {
1957                 cx231xx_info("V4L2 device %s deregistered\n",
1958                              video_device_node_name(dev->vdev));
1959
1960                 if (dev->board.has_417)
1961                         cx231xx_417_unregister(dev);
1962
1963                 if (video_is_registered(dev->vdev))
1964                         video_unregister_device(dev->vdev);
1965                 else
1966                         video_device_release(dev->vdev);
1967                 dev->vdev = NULL;
1968         }
1969         v4l2_ctrl_handler_free(&dev->ctrl_handler);
1970         v4l2_ctrl_handler_free(&dev->radio_ctrl_handler);
1971 }
1972
1973 /*
1974  * cx231xx_close()
1975  * stops streaming and deallocates all resources allocated by the v4l2
1976  * calls and ioctls
1977  */
1978 static int cx231xx_close(struct file *filp)
1979 {
1980         struct cx231xx_fh *fh = filp->private_data;
1981         struct cx231xx *dev = fh->dev;
1982
1983         cx231xx_videodbg("users=%d\n", dev->users);
1984
1985         cx231xx_videodbg("users=%d\n", dev->users);
1986         if (res_check(fh))
1987                 res_free(fh);
1988
1989         /*
1990          * To workaround error number=-71 on EP0 for VideoGrabber,
1991          *       need exclude following.
1992          * FIXME: It is probably safe to remove most of these, as we're
1993          * now avoiding the alternate setting for INDEX_VANC
1994          */
1995         if (!dev->board.no_alt_vanc)
1996                 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
1997                         videobuf_stop(&fh->vb_vidq);
1998                         videobuf_mmap_free(&fh->vb_vidq);
1999
2000                         /* the device is already disconnect,
2001                            free the remaining resources */
2002                         if (dev->state & DEV_DISCONNECTED) {
2003                                 if (atomic_read(&dev->devlist_count) > 0) {
2004                                         cx231xx_release_resources(dev);
2005                                         fh->dev = NULL;
2006                                         return 0;
2007                                 }
2008                                 return 0;
2009                         }
2010
2011                         /* do this before setting alternate! */
2012                         cx231xx_uninit_vbi_isoc(dev);
2013
2014                         /* set alternate 0 */
2015                         if (!dev->vbi_or_sliced_cc_mode)
2016                                 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
2017                         else
2018                                 cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
2019
2020                         v4l2_fh_del(&fh->fh);
2021                         v4l2_fh_exit(&fh->fh);
2022                         kfree(fh);
2023                         dev->users--;
2024                         wake_up_interruptible_nr(&dev->open, 1);
2025                         return 0;
2026                 }
2027
2028         v4l2_fh_del(&fh->fh);
2029         dev->users--;
2030         if (!dev->users) {
2031                 videobuf_stop(&fh->vb_vidq);
2032                 videobuf_mmap_free(&fh->vb_vidq);
2033
2034                 /* the device is already disconnect,
2035                    free the remaining resources */
2036                 if (dev->state & DEV_DISCONNECTED) {
2037                         cx231xx_release_resources(dev);
2038                         fh->dev = NULL;
2039                         return 0;
2040                 }
2041
2042                 /* Save some power by putting tuner to sleep */
2043                 call_all(dev, core, s_power, 0);
2044
2045                 /* do this before setting alternate! */
2046                 if (dev->USE_ISO)
2047                         cx231xx_uninit_isoc(dev);
2048                 else
2049                         cx231xx_uninit_bulk(dev);
2050                 cx231xx_set_mode(dev, CX231XX_SUSPEND);
2051
2052                 /* set alternate 0 */
2053                 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
2054         }
2055         v4l2_fh_exit(&fh->fh);
2056         kfree(fh);
2057         wake_up_interruptible_nr(&dev->open, 1);
2058         return 0;
2059 }
2060
2061 static int cx231xx_v4l2_close(struct file *filp)
2062 {
2063         struct cx231xx_fh *fh = filp->private_data;
2064         struct cx231xx *dev = fh->dev;
2065         int rc;
2066
2067         mutex_lock(&dev->lock);
2068         rc = cx231xx_close(filp);
2069         mutex_unlock(&dev->lock);
2070         return rc;
2071 }
2072
2073 /*
2074  * cx231xx_v4l2_read()
2075  * will allocate buffers when called for the first time
2076  */
2077 static ssize_t
2078 cx231xx_v4l2_read(struct file *filp, char __user *buf, size_t count,
2079                   loff_t *pos)
2080 {
2081         struct cx231xx_fh *fh = filp->private_data;
2082         struct cx231xx *dev = fh->dev;
2083         int rc;
2084
2085         rc = check_dev(dev);
2086         if (rc < 0)
2087                 return rc;
2088
2089         if ((fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
2090             (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)) {
2091                 rc = res_get(fh);
2092
2093                 if (unlikely(rc < 0))
2094                         return rc;
2095
2096                 if (mutex_lock_interruptible(&dev->lock))
2097                         return -ERESTARTSYS;
2098                 rc = videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0,
2099                                             filp->f_flags & O_NONBLOCK);
2100                 mutex_unlock(&dev->lock);
2101                 return rc;
2102         }
2103         return 0;
2104 }
2105
2106 /*
2107  * cx231xx_v4l2_poll()
2108  * will allocate buffers when called for the first time
2109  */
2110 static unsigned int cx231xx_v4l2_poll(struct file *filp, poll_table *wait)
2111 {
2112         unsigned long req_events = poll_requested_events(wait);
2113         struct cx231xx_fh *fh = filp->private_data;
2114         struct cx231xx *dev = fh->dev;
2115         unsigned res = 0;
2116         int rc;
2117
2118         rc = check_dev(dev);
2119         if (rc < 0)
2120                 return POLLERR;
2121
2122         rc = res_get(fh);
2123
2124         if (unlikely(rc < 0))
2125                 return POLLERR;
2126
2127         if (v4l2_event_pending(&fh->fh))
2128                 res |= POLLPRI;
2129         else
2130                 poll_wait(filp, &fh->fh.wait, wait);
2131
2132         if (!(req_events & (POLLIN | POLLRDNORM)))
2133                 return res;
2134
2135         if ((V4L2_BUF_TYPE_VIDEO_CAPTURE == fh->type) ||
2136             (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type)) {
2137                 mutex_lock(&dev->lock);
2138                 res |= videobuf_poll_stream(filp, &fh->vb_vidq, wait);
2139                 mutex_unlock(&dev->lock);
2140                 return res;
2141         }
2142         return res | POLLERR;
2143 }
2144
2145 /*
2146  * cx231xx_v4l2_mmap()
2147  */
2148 static int cx231xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
2149 {
2150         struct cx231xx_fh *fh = filp->private_data;
2151         struct cx231xx *dev = fh->dev;
2152         int rc;
2153
2154         rc = check_dev(dev);
2155         if (rc < 0)
2156                 return rc;
2157
2158         rc = res_get(fh);
2159
2160         if (unlikely(rc < 0))
2161                 return rc;
2162
2163         if (mutex_lock_interruptible(&dev->lock))
2164                 return -ERESTARTSYS;
2165         rc = videobuf_mmap_mapper(&fh->vb_vidq, vma);
2166         mutex_unlock(&dev->lock);
2167
2168         cx231xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n",
2169                          (unsigned long)vma->vm_start,
2170                          (unsigned long)vma->vm_end -
2171                          (unsigned long)vma->vm_start, rc);
2172
2173         return rc;
2174 }
2175
2176 static const struct v4l2_file_operations cx231xx_v4l_fops = {
2177         .owner   = THIS_MODULE,
2178         .open    = cx231xx_v4l2_open,
2179         .release = cx231xx_v4l2_close,
2180         .read    = cx231xx_v4l2_read,
2181         .poll    = cx231xx_v4l2_poll,
2182         .mmap    = cx231xx_v4l2_mmap,
2183         .unlocked_ioctl   = video_ioctl2,
2184 };
2185
2186 static const struct v4l2_ioctl_ops video_ioctl_ops = {
2187         .vidioc_querycap               = cx231xx_querycap,
2188         .vidioc_enum_fmt_vid_cap       = vidioc_enum_fmt_vid_cap,
2189         .vidioc_g_fmt_vid_cap          = vidioc_g_fmt_vid_cap,
2190         .vidioc_try_fmt_vid_cap        = vidioc_try_fmt_vid_cap,
2191         .vidioc_s_fmt_vid_cap          = vidioc_s_fmt_vid_cap,
2192         .vidioc_g_fmt_vbi_cap          = vidioc_g_fmt_vbi_cap,
2193         .vidioc_try_fmt_vbi_cap        = vidioc_try_fmt_vbi_cap,
2194         .vidioc_s_fmt_vbi_cap          = vidioc_s_fmt_vbi_cap,
2195         .vidioc_cropcap                = vidioc_cropcap,
2196         .vidioc_reqbufs                = vidioc_reqbufs,
2197         .vidioc_querybuf               = vidioc_querybuf,
2198         .vidioc_qbuf                   = vidioc_qbuf,
2199         .vidioc_dqbuf                  = vidioc_dqbuf,
2200         .vidioc_s_std                  = vidioc_s_std,
2201         .vidioc_g_std                  = vidioc_g_std,
2202         .vidioc_enum_input             = cx231xx_enum_input,
2203         .vidioc_g_input                = cx231xx_g_input,
2204         .vidioc_s_input                = cx231xx_s_input,
2205         .vidioc_streamon               = vidioc_streamon,
2206         .vidioc_streamoff              = vidioc_streamoff,
2207         .vidioc_g_tuner                = cx231xx_g_tuner,
2208         .vidioc_s_tuner                = cx231xx_s_tuner,
2209         .vidioc_g_frequency            = cx231xx_g_frequency,
2210         .vidioc_s_frequency            = cx231xx_s_frequency,
2211         .vidioc_g_chip_ident           = cx231xx_g_chip_ident,
2212 #ifdef CONFIG_VIDEO_ADV_DEBUG
2213         .vidioc_g_register             = cx231xx_g_register,
2214         .vidioc_s_register             = cx231xx_s_register,
2215 #endif
2216         .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
2217         .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
2218 };
2219
2220 static struct video_device cx231xx_vbi_template;
2221
2222 static const struct video_device cx231xx_video_template = {
2223         .fops         = &cx231xx_v4l_fops,
2224         .release      = video_device_release,
2225         .ioctl_ops    = &video_ioctl_ops,
2226         .tvnorms      = V4L2_STD_ALL,
2227 };
2228
2229 static const struct v4l2_file_operations radio_fops = {
2230         .owner   = THIS_MODULE,
2231         .open   = cx231xx_v4l2_open,
2232         .release = cx231xx_v4l2_close,
2233         .poll = v4l2_ctrl_poll,
2234         .unlocked_ioctl = video_ioctl2,
2235 };
2236
2237 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
2238         .vidioc_querycap    = cx231xx_querycap,
2239         .vidioc_g_tuner     = radio_g_tuner,
2240         .vidioc_s_tuner     = radio_s_tuner,
2241         .vidioc_g_frequency = cx231xx_g_frequency,
2242         .vidioc_s_frequency = cx231xx_s_frequency,
2243         .vidioc_g_chip_ident = cx231xx_g_chip_ident,
2244 #ifdef CONFIG_VIDEO_ADV_DEBUG
2245         .vidioc_g_register  = cx231xx_g_register,
2246         .vidioc_s_register  = cx231xx_s_register,
2247 #endif
2248         .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
2249         .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
2250 };
2251
2252 static struct video_device cx231xx_radio_template = {
2253         .name      = "cx231xx-radio",
2254         .fops      = &radio_fops,
2255         .ioctl_ops = &radio_ioctl_ops,
2256 };
2257
2258 /******************************** usb interface ******************************/
2259
2260 static struct video_device *cx231xx_vdev_init(struct cx231xx *dev,
2261                 const struct video_device
2262                 *template, const char *type_name)
2263 {
2264         struct video_device *vfd;
2265
2266         vfd = video_device_alloc();
2267         if (NULL == vfd)
2268                 return NULL;
2269
2270         *vfd = *template;
2271         vfd->v4l2_dev = &dev->v4l2_dev;
2272         vfd->release = video_device_release;
2273         vfd->debug = video_debug;
2274         vfd->lock = &dev->lock;
2275         set_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags);
2276
2277         snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
2278
2279         video_set_drvdata(vfd, dev);
2280         if (dev->tuner_type == TUNER_ABSENT) {
2281                 v4l2_disable_ioctl(vfd, VIDIOC_G_FREQUENCY);
2282                 v4l2_disable_ioctl(vfd, VIDIOC_S_FREQUENCY);
2283                 v4l2_disable_ioctl(vfd, VIDIOC_G_TUNER);
2284                 v4l2_disable_ioctl(vfd, VIDIOC_S_TUNER);
2285         }
2286         return vfd;
2287 }
2288
2289 int cx231xx_register_analog_devices(struct cx231xx *dev)
2290 {
2291         int ret;
2292
2293         cx231xx_info("%s: v4l2 driver version %s\n",
2294                      dev->name, CX231XX_VERSION);
2295
2296         /* set default norm */
2297         dev->norm = V4L2_STD_PAL;
2298         dev->width = norm_maxw(dev);
2299         dev->height = norm_maxh(dev);
2300         dev->interlaced = 0;
2301
2302         /* Analog specific initialization */
2303         dev->format = &format[0];
2304
2305         /* Set the initial input */
2306         video_mux(dev, dev->video_input);
2307
2308         call_all(dev, core, s_std, dev->norm);
2309
2310         v4l2_ctrl_handler_init(&dev->ctrl_handler, 10);
2311         v4l2_ctrl_handler_init(&dev->radio_ctrl_handler, 5);
2312
2313         if (dev->sd_cx25840) {
2314                 v4l2_ctrl_add_handler(&dev->ctrl_handler,
2315                                 dev->sd_cx25840->ctrl_handler, NULL);
2316                 v4l2_ctrl_add_handler(&dev->radio_ctrl_handler,
2317                                 dev->sd_cx25840->ctrl_handler,
2318                                 v4l2_ctrl_radio_filter);
2319         }
2320
2321         if (dev->ctrl_handler.error)
2322                 return dev->ctrl_handler.error;
2323         if (dev->radio_ctrl_handler.error)
2324                 return dev->radio_ctrl_handler.error;
2325
2326         /* enable vbi capturing */
2327         /* write code here...  */
2328
2329         /* allocate and fill video video_device struct */
2330         dev->vdev = cx231xx_vdev_init(dev, &cx231xx_video_template, "video");
2331         if (!dev->vdev) {
2332                 cx231xx_errdev("cannot allocate video_device.\n");
2333                 return -ENODEV;
2334         }
2335
2336         dev->vdev->ctrl_handler = &dev->ctrl_handler;
2337         /* register v4l2 video video_device */
2338         ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
2339                                     video_nr[dev->devno]);
2340         if (ret) {
2341                 cx231xx_errdev("unable to register video device (error=%i).\n",
2342                                ret);
2343                 return ret;
2344         }
2345
2346         cx231xx_info("%s/0: registered device %s [v4l2]\n",
2347                      dev->name, video_device_node_name(dev->vdev));
2348
2349         /* Initialize VBI template */
2350         cx231xx_vbi_template = cx231xx_video_template;
2351         strcpy(cx231xx_vbi_template.name, "cx231xx-vbi");
2352
2353         /* Allocate and fill vbi video_device struct */
2354         dev->vbi_dev = cx231xx_vdev_init(dev, &cx231xx_vbi_template, "vbi");
2355
2356         if (!dev->vbi_dev) {
2357                 cx231xx_errdev("cannot allocate video_device.\n");
2358                 return -ENODEV;
2359         }
2360         dev->vbi_dev->ctrl_handler = &dev->ctrl_handler;
2361         /* register v4l2 vbi video_device */
2362         ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
2363                                     vbi_nr[dev->devno]);
2364         if (ret < 0) {
2365                 cx231xx_errdev("unable to register vbi device\n");
2366                 return ret;
2367         }
2368
2369         cx231xx_info("%s/0: registered device %s\n",
2370                      dev->name, video_device_node_name(dev->vbi_dev));
2371
2372         if (cx231xx_boards[dev->model].radio.type == CX231XX_RADIO) {
2373                 dev->radio_dev = cx231xx_vdev_init(dev, &cx231xx_radio_template,
2374                                                    "radio");
2375                 if (!dev->radio_dev) {
2376                         cx231xx_errdev("cannot allocate video_device.\n");
2377                         return -ENODEV;
2378                 }
2379                 dev->radio_dev->ctrl_handler = &dev->radio_ctrl_handler;
2380                 ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
2381                                             radio_nr[dev->devno]);
2382                 if (ret < 0) {
2383                         cx231xx_errdev("can't register radio device\n");
2384                         return ret;
2385                 }
2386                 cx231xx_info("Registered radio device as %s\n",
2387                              video_device_node_name(dev->radio_dev));
2388         }
2389
2390         cx231xx_info("V4L2 device registered as %s and %s\n",
2391                      video_device_node_name(dev->vdev),
2392                      video_device_node_name(dev->vbi_dev));
2393
2394         return 0;
2395 }