SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/media/video/cx231xx/cx231xx-video.c

   1 /*
   2    cx231xx-video.c - driver for Conexant Cx23100/101/102 USB video capture devices
   3
   4    Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
   5         Based on em28xx driver
   6         Based on cx23885 driver
   7         Based on cx88 driver
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22  */
  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/version.h>
  33 #include <linux/mm.h>
  34 #include <linux/mutex.h>
  35
  36 #include <media/v4l2-common.h>
  37 #include <media/v4l2-ioctl.h>
  38 #include <media/v4l2-chip-ident.h>
  39 #include <media/msp3400.h>
  40 #include <media/tuner.h>
  41
  42 #include "dvb_frontend.h"
  43
  44 #include "cx231xx.h"
  45 #include "cx231xx-vbi.h"
  46
  47
  48 #define DRIVER_AUTHOR   "Srinivasa Deevi <srinivasa.deevi@conexant.com>"
  49 #define DRIVER_DESC     "Conexant cx231xx based USB video device driver"
  50
  51
  52 #define cx231xx_videodbg(fmt, arg...) do {\
  53         if (video_debug) \
  54                 printk(KERN_INFO "%s %s :"fmt, \
  55                          dev->name, __func__ , ##arg); } while (0)
  56
  57 static unsigned int isoc_debug;
  58 module_param(isoc_debug, int, 0644);
  59 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
  60
  61 #define cx231xx_isocdbg(fmt, arg...) \
  62 do {\
  63         if (isoc_debug) { \
  64                 printk(KERN_INFO "%s %s :"fmt, \
  65                          dev->name, __func__ , ##arg); \
  66         } \
  67   } while (0)
  68
  69 MODULE_AUTHOR(DRIVER_AUTHOR);
  70 MODULE_DESCRIPTION(DRIVER_DESC);
  71 MODULE_LICENSE("GPL");
  72
  73
  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
  95
  96 /* supported video standards */
  97 static struct cx231xx_fmt format[] = {
  98         {
  99                 .name     = "16bpp YUY2, 4:2:2, packed",
 100                 .fourcc   = V4L2_PIX_FMT_YUYV,
 101                 .depth    = 16,
 102                 .reg      = 0,
 103         },
 104 };
 105
 106
 107 /* supported controls */
 108 /* Common to all boards */
 109
 110 /* ------------------------------------------------------------------- */
 111
 112 static const struct v4l2_queryctrl no_ctl = {
 113         .name  = "42",
 114         .flags = V4L2_CTRL_FLAG_DISABLED,
 115 };
 116
 117 static struct cx231xx_ctrl cx231xx_ctls[] = {
 118         /* --- video --- */
 119         {
 120                 .v = {
 121                         .id            = V4L2_CID_BRIGHTNESS,
 122                         .name          = "Brightness",
 123                         .minimum       = 0x00,
 124                         .maximum       = 0xff,
 125                         .step          = 1,
 126                         .default_value = 0x7f,
 127                         .type          = V4L2_CTRL_TYPE_INTEGER,
 128                 },
 129                 .off                   = 128,
 130                 .reg                   = LUMA_CTRL,
 131                 .mask                  = 0x00ff,
 132                 .shift                 = 0,
 133         }, {
 134                 .v = {
 135                         .id            = V4L2_CID_CONTRAST,
 136                         .name          = "Contrast",
 137                         .minimum       = 0,
 138                         .maximum       = 0xff,
 139                         .step          = 1,
 140                         .default_value = 0x3f,
 141                         .type          = V4L2_CTRL_TYPE_INTEGER,
 142                 },
 143                 .off                   = 0,
 144                 .reg                   = LUMA_CTRL,
 145                 .mask                  = 0xff00,
 146                 .shift                 = 8,
 147         }, {
 148                 .v = {
 149                         .id            = V4L2_CID_HUE,
 150                         .name          = "Hue",
 151                         .minimum       = 0,
 152                         .maximum       = 0xff,
 153                         .step          = 1,
 154                         .default_value = 0x7f,
 155                         .type          = V4L2_CTRL_TYPE_INTEGER,
 156                 },
 157                 .off                   = 128,
 158                 .reg                   = CHROMA_CTRL,
 159                 .mask                  = 0xff0000,
 160                 .shift                 = 16,
 161         }, {
 162                 /* strictly, this only describes only U saturation.
 163                  * V saturation is handled specially through code.
 164                  */
 165                 .v = {
 166                         .id            = V4L2_CID_SATURATION,
 167                         .name          = "Saturation",
 168                         .minimum       = 0,
 169                         .maximum       = 0xff,
 170                         .step          = 1,
 171                         .default_value = 0x7f,
 172                         .type          = V4L2_CTRL_TYPE_INTEGER,
 173                 },
 174                 .off                   = 0,
 175                 .reg                   = CHROMA_CTRL,
 176                 .mask                  = 0x00ff,
 177                 .shift                 = 0,
 178         }, {
 179         /* --- audio --- */
 180                 .v = {
 181                         .id            = V4L2_CID_AUDIO_MUTE,
 182                         .name          = "Mute",
 183                         .minimum       = 0,
 184                         .maximum       = 1,
 185                         .default_value = 1,
 186                         .type          = V4L2_CTRL_TYPE_BOOLEAN,
 187                 },
 188                 .reg                   = PATH1_CTL1,
 189                 .mask                  = (0x1f << 24),
 190                 .shift                 = 24,
 191         }, {
 192                 .v = {
 193                         .id            = V4L2_CID_AUDIO_VOLUME,
 194                         .name          = "Volume",
 195                         .minimum       = 0,
 196                         .maximum       = 0x3f,
 197                         .step          = 1,
 198                         .default_value = 0x3f,
 199                         .type          = V4L2_CTRL_TYPE_INTEGER,
 200                 },
 201                 .reg                   = PATH1_VOL_CTL,
 202                 .mask                  = 0xff,
 203                 .shift                 = 0,
 204         }
 205 };
 206 static const int CX231XX_CTLS = ARRAY_SIZE(cx231xx_ctls);
 207
 208 static const u32 cx231xx_user_ctrls[] = {
 209         V4L2_CID_USER_CLASS,
 210         V4L2_CID_BRIGHTNESS,
 211         V4L2_CID_CONTRAST,
 212         V4L2_CID_SATURATION,
 213         V4L2_CID_HUE,
 214         V4L2_CID_AUDIO_VOLUME,
 215 #if 0
 216         V4L2_CID_AUDIO_BALANCE,
 217 #endif
 218         V4L2_CID_AUDIO_MUTE,
 219         0
 220 };
 221
 222 static const u32 *ctrl_classes[] = {
 223         cx231xx_user_ctrls,
 224         NULL
 225 };
 226
 227
 228 /* ------------------------------------------------------------------
 229         Video buffer and parser functions
 230    ------------------------------------------------------------------*/
 231
 232 /*
 233  * Announces that a buffer were filled and request the next
 234  */
 235 static inline void buffer_filled(struct cx231xx *dev,
 236                                   struct cx231xx_dmaqueue *dma_q,
 237                                   struct cx231xx_buffer *buf)
 238 {
 239         /* Advice that buffer was filled */
 240         cx231xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
 241         buf->vb.state = VIDEOBUF_DONE;
 242         buf->vb.field_count++;
 243         do_gettimeofday(&buf->vb.ts);
 244
 245         dev->video_mode.isoc_ctl.buf = NULL;
 246
 247         list_del(&buf->vb.queue);
 248         wake_up(&buf->vb.done);
 249 }
 250
 251
 252 static inline void print_err_status(struct cx231xx *dev,
 253                                      int packet, int status)
 254 {
 255         char *errmsg = "Unknown";
 256
 257         switch (status) {
 258         case -ENOENT:
 259                 errmsg = "unlinked synchronuously";
 260                 break;
 261         case -ECONNRESET:
 262                 errmsg = "unlinked asynchronuously";
 263                 break;
 264         case -ENOSR:
 265                 errmsg = "Buffer error (overrun)";
 266                 break;
 267         case -EPIPE:
 268                 errmsg = "Stalled (device not responding)";
 269                 break;
 270         case -EOVERFLOW:
 271                 errmsg = "Babble (bad cable?)";
 272                 break;
 273         case -EPROTO:
 274                 errmsg = "Bit-stuff error (bad cable?)";
 275                 break;
 276         case -EILSEQ:
 277                 errmsg = "CRC/Timeout (could be anything)";
 278                 break;
 279         case -ETIME:
 280                 errmsg = "Device does not respond";
 281                 break;
 282         }
 283         if (packet < 0) {
 284                 cx231xx_isocdbg("URB status %d [%s].\n",        status, errmsg);
 285         } else {
 286                 cx231xx_isocdbg("URB packet %d, status %d [%s].\n",
 287                                packet, status, errmsg);
 288         }
 289 }
 290
 291 /*
 292  * video-buf generic routine to get the next available buffer
 293  */
 294 static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q,
 295                                           struct cx231xx_buffer **buf)
 296 {
 297     struct cx231xx_video_mode *vmode = container_of(dma_q, struct cx231xx_video_mode, vidq);
 298     struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 299
 300         char *outp;
 301
 302
 303         if (list_empty(&dma_q->active)) {
 304                 cx231xx_isocdbg("No active queue to serve\n");
 305                 dev->video_mode.isoc_ctl.buf = NULL;
 306                 *buf = NULL;
 307                 return;
 308         }
 309
 310         /* Get the next buffer */
 311         *buf = list_entry(dma_q->active.next, struct cx231xx_buffer, vb.queue);
 312
 313         /* Cleans up buffer - Usefull for testing for frame/URB loss */
 314         outp = videobuf_to_vmalloc(&(*buf)->vb);
 315         memset(outp, 0, (*buf)->vb.size);
 316
 317         dev->video_mode.isoc_ctl.buf = *buf;
 318
 319         return;
 320 }
 321
 322 /*
 323  * Controls the isoc copy of each urb packet
 324  */
 325 static inline int cx231xx_isoc_copy(struct cx231xx *dev, struct urb *urb)
 326 {
 327         struct cx231xx_buffer    *buf;
 328         struct cx231xx_dmaqueue  *dma_q = urb->context;
 329         unsigned char *outp = NULL;
 330         int i,  rc = 1;
 331         unsigned char *p_buffer;
 332     u32 bytes_parsed = 0, buffer_size = 0;
 333     u8 sav_eav = 0;
 334
 335         if (!dev)
 336                 return 0;
 337
 338         if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
 339                 return 0;
 340
 341         if (urb->status < 0) {
 342                 print_err_status(dev, -1, urb->status);
 343                 if (urb->status == -ENOENT)
 344                         return 0;
 345         }
 346
 347         buf = dev->video_mode.isoc_ctl.buf;
 348         if (buf != NULL)
 349                 outp = videobuf_to_vmalloc(&buf->vb);
 350
 351         for (i = 0; i < urb->number_of_packets; i++) {
 352                 int status = urb->iso_frame_desc[i].status;
 353
 354                 if (status < 0) {
 355                         print_err_status(dev, i, status);
 356                         if (urb->iso_frame_desc[i].status != -EPROTO)
 357                                 continue;
 358                 }
 359
 360         if (urb->iso_frame_desc[i].actual_length <= 0) {
 361                         /* cx231xx_isocdbg("packet %d is empty",i); - spammy */
 362                         continue;
 363                 }
 364                 if (urb->iso_frame_desc[i].actual_length >
 365                                                 dev->video_mode.max_pkt_size) {
 366                         cx231xx_isocdbg("packet bigger than packet size");
 367                         continue;
 368                 }
 369
 370         /*  get buffer pointer and length */
 371                 p_buffer = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
 372         buffer_size = urb->iso_frame_desc[i].actual_length;
 373         bytes_parsed = 0;
 374
 375         if(dma_q->is_partial_line)
 376         {
 377             /* Handle the case where we were working on a partial line */
 378             sav_eav = dma_q->last_sav;
 379         } else {
 380             /* Check for a SAV/EAV overlapping the buffer boundary */
 381             sav_eav = cx231xx_find_boundary_SAV_EAV(p_buffer, dma_q->partial_buf, &bytes_parsed);
 382         }
 383
 384         sav_eav &= 0xF0;
 385         /* Get the first line if we have some portion of an SAV/EAV from the last buffer
 386            or a partial line  */
 387         if(sav_eav) {
 388             bytes_parsed += cx231xx_get_video_line(dev, dma_q,
 389                 sav_eav,                            /* SAV/EAV */
 390                 p_buffer + bytes_parsed,            /* p_buffer */
 391                 buffer_size - bytes_parsed);        /* buffer size */
 392         }
 393
 394         /* Now parse data that is completely in this buffer */
 395         /* dma_q->is_partial_line = 0;  */
 396
 397         while(bytes_parsed < buffer_size)
 398         {
 399             u32 bytes_used = 0;
 400
 401             sav_eav = cx231xx_find_next_SAV_EAV(
 402                 p_buffer + bytes_parsed,            /* p_buffer */
 403                 buffer_size - bytes_parsed,         /* buffer size */
 404                 &bytes_used);                       /* Receives bytes used to get SAV/EAV */
 405
 406                 bytes_parsed += bytes_used;
 407
 408             sav_eav &= 0xF0;
 409             if(sav_eav && (bytes_parsed < buffer_size))
 410             {
 411                 bytes_parsed += cx231xx_get_video_line(dev, dma_q,
 412                     sav_eav,                        /* SAV/EAV */
 413                     p_buffer + bytes_parsed,        /* p_buffer */
 414                     buffer_size - bytes_parsed);    /* buffer size */
 415             }
 416         }
 417
 418         /* Save the last four bytes of the buffer so we can check the buffer boundary
 419            condition next time */
 420         memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
 421         bytes_parsed = 0;
 422
 423         }
 424         return rc;
 425 }
 426
 427 u8 cx231xx_find_boundary_SAV_EAV(u8 *p_buffer, u8 *partial_buf, u32 *p_bytes_used)
 428 {
 429     u32 bytes_used;
 430     u8 boundary_bytes[8];
 431     u8 sav_eav = 0;
 432
 433     *p_bytes_used = 0;
 434
 435     /* Create an array of the last 4 bytes of the last buffer and the first
 436        4 bytes of the current buffer. */
 437
 438     memcpy(boundary_bytes, partial_buf, 4);
 439     memcpy(boundary_bytes + 4, p_buffer, 4);
 440
 441     /* Check for the SAV/EAV in the boundary buffer */
 442     sav_eav = cx231xx_find_next_SAV_EAV((u8*)&boundary_bytes, 8, &bytes_used);
 443
 444     if(sav_eav) {
 445         /* found a boundary SAV/EAV.  Updates the bytes used to reflect
 446            only those used in the new buffer */
 447         *p_bytes_used = bytes_used - 4;
 448     }
 449
 450     return sav_eav;
 451 }
 452
 453 u8 cx231xx_find_next_SAV_EAV(u8 *p_buffer, u32 buffer_size, u32 *p_bytes_used)
 454 {
 455     u32 i;
 456     u8 sav_eav = 0;
 457
 458     /* Don't search if the buffer size is less than 4.  It causes a page fault since
 459        buffer_size - 4 evaluates to a large number in that case. */
 460     if(buffer_size < 4) {
 461         *p_bytes_used = buffer_size;
 462         return 0;
 463     }
 464
 465     for(i = 0;i < (buffer_size - 3); i++)  {
 466
 467         if((p_buffer[i] == 0xFF) &&
 468             (p_buffer[i+1] == 0x00) &&
 469             (p_buffer[i+2] == 0x00)) {
 470
 471             *p_bytes_used = i+4;
 472             sav_eav = p_buffer[i+3];
 473             return sav_eav;
 474         }
 475     }
 476
 477     *p_bytes_used = buffer_size;
 478     return 0;
 479 }
 480
 481
 482
 483
 484 u32 cx231xx_get_video_line(struct cx231xx *dev, struct cx231xx_dmaqueue  *dma_q,
 485                            u8 sav_eav, u8 *p_buffer, u32 buffer_size)
 486 {
 487     u32 bytes_copied = 0;
 488     int current_field = -1;
 489
 490
 491     switch(sav_eav) {
 492         case SAV_ACTIVE_VIDEO_FIELD1:
 493             /* looking for skipped line which occurred in PAL 720x480 mode. In this case,
 494                        there will be no active data contained between the SAV and EAV */
 495             if ( (buffer_size > 3) &&
 496                          (p_buffer[0] == 0xFF) && (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
 497                              ( (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) || (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
 498                                (p_buffer[3] == EAV_VBLANK_FIELD1)           || (p_buffer[3] == EAV_VBLANK_FIELD2)
 499                              )
 500                        )
 501                     {
 502                         return bytes_copied;
 503                     }
 504             current_field = 1;
 505             break;
 506
 507         case SAV_ACTIVE_VIDEO_FIELD2:
 508             /* looking for skipped line which occurred in PAL 720x480 mode. In this case,
 509                        there will be no active data contained between the SAV and EAV */
 510              if ( (buffer_size > 3) &&
 511                          (p_buffer[0] == 0xFF) && (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
 512                              ( (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) || (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
 513                                (p_buffer[3] == EAV_VBLANK_FIELD1)           || (p_buffer[3] == EAV_VBLANK_FIELD2)
 514                              )
 515                        )
 516                     {
 517                         return bytes_copied;
 518                     }
 519             current_field = 2;
 520             break;
 521     }
 522
 523     dma_q->last_sav = sav_eav;
 524
 525     bytes_copied = cx231xx_copy_video_line(dev, dma_q, p_buffer, buffer_size, current_field);
 526
 527     return bytes_copied;
 528 }
 529
 530 u32 cx231xx_copy_video_line(struct cx231xx *dev, struct cx231xx_dmaqueue  *dma_q,
 531                             u8 *p_line, u32 length, int field_number)
 532 {
 533     u32 bytes_to_copy;
 534     struct cx231xx_buffer *buf;
 535     u32 _line_size = dev->width * 2;
 536
 537     if( dma_q->current_field != field_number )  {
 538         cx231xx_reset_video_buffer(dev, dma_q);
 539     }
 540
 541     /* get the buffer pointer */
 542     buf = dev->video_mode.isoc_ctl.buf;
 543
 544      /* Remember the field number for next time */
 545     dma_q->current_field = field_number;
 546
 547     bytes_to_copy = dma_q->bytes_left_in_line;
 548     if(bytes_to_copy > length)
 549         bytes_to_copy = length;
 550
 551
 552     if(dma_q->lines_completed >= dma_q->lines_per_field) {
 553         dma_q->bytes_left_in_line -= bytes_to_copy;
 554         dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ? 0 : 1;
 555         return 0;
 556     }
 557
 558     dma_q->is_partial_line = 1;
 559
 560     /* If we don't have a buffer, just return the number of bytes we would
 561        have copied if we had a buffer. */
 562     if(!buf)
 563     {
 564         dma_q->bytes_left_in_line -= bytes_to_copy;
 565         dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ? 0 : 1;
 566         return bytes_to_copy;
 567     }
 568
 569     /* copy the data to video buffer */
 570     cx231xx_do_copy(dev, dma_q, p_line, bytes_to_copy);
 571
 572     dma_q->pos += bytes_to_copy;
 573     dma_q->bytes_left_in_line -= bytes_to_copy;
 574
 575     if(dma_q->bytes_left_in_line == 0) {
 576
 577         dma_q->bytes_left_in_line = _line_size;
 578         dma_q->lines_completed++;
 579         dma_q->is_partial_line = 0;
 580
 581         if(cx231xx_is_buffer_done(dev, dma_q) && buf) {
 582
 583             buffer_filled(dev, dma_q, buf);
 584
 585             dma_q->pos = 0;
 586             buf = NULL;
 587             dma_q->lines_completed = 0;
 588         }
 589     }
 590
 591     return bytes_to_copy;
 592 }
 593
 594 void cx231xx_reset_video_buffer(struct cx231xx *dev, struct cx231xx_dmaqueue  *dma_q)
 595 {
 596     struct cx231xx_buffer *buf;
 597
 598     /* handle the switch from field 1 to field 2 */
 599     if(dma_q->current_field == 1) {
 600         if(dma_q->lines_completed >= dma_q->lines_per_field ) {
 601             dma_q->field1_done = 1;
 602         } else {
 603             dma_q->field1_done = 0;
 604         }
 605     }
 606
 607     buf = dev->video_mode.isoc_ctl.buf;
 608
 609     if(buf == NULL) {
 610         u8* outp = NULL;
 611         /* first try to get the buffer */
 612        get_next_buf(dma_q, &buf);
 613
 614        if(buf)
 615            outp = videobuf_to_vmalloc(&buf->vb);
 616
 617         dma_q->pos = 0;
 618         dma_q->field1_done = 0;
 619         dma_q->current_field = -1;
 620     }
 621
 622     /* reset the counters */
 623     dma_q->bytes_left_in_line = dev->width << 1;
 624     dma_q->lines_completed = 0;
 625 }
 626
 627 int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
 628                     u8 *p_buffer, u32 bytes_to_copy)
 629 {
 630     u8 *p_out_buffer = NULL;
 631     u32 current_line_bytes_copied = 0;
 632     struct cx231xx_buffer *buf;
 633     u32 _line_size = dev->width << 1;
 634     void *startwrite;
 635         int  offset, lencopy;
 636
 637     buf = dev->video_mode.isoc_ctl.buf;
 638
 639     if (buf == NULL)
 640         return -1;
 641
 642         p_out_buffer = videobuf_to_vmalloc(&buf->vb);
 643
 644     current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line;
 645
 646     /* Offset field 2 one line from the top of the buffer */
 647     offset =  (dma_q->current_field == 1)? 0: _line_size;
 648
 649     /* Offset for field 2 */
 650     startwrite = p_out_buffer + offset;
 651
 652     /* lines already completed in the current field */
 653     startwrite += (dma_q->lines_completed * _line_size * 2);
 654
 655     /* bytes already completed in the current line */
 656     startwrite += current_line_bytes_copied;
 657
 658     lencopy =  dma_q->bytes_left_in_line > bytes_to_copy ? bytes_to_copy : dma_q->bytes_left_in_line;
 659
 660     if( (u8*)(startwrite +lencopy) > (u8*)(p_out_buffer+ buf->vb.size) )  {
 661         return 0;
 662     }
 663
 664     /* The below copies the UYVY data straight into video buffer */
 665     cx231xx_swab( (u16*)p_buffer, (u16*)startwrite, (u16)lencopy);
 666
 667     return 0;
 668 }
 669
 670 void cx231xx_swab(u16 *from, u16 *to, u16 len)
 671 {
 672     u16 i;
 673
 674     if( len <= 0)
 675         return;
 676
 677     for(i = 0; i < len/2; i++) {
 678         to[i] = (from[i] << 8) | (from[i] >> 8);
 679     }
 680 }
 681
 682 u8 cx231xx_is_buffer_done(struct cx231xx *dev,struct cx231xx_dmaqueue  *dma_q)
 683 {
 684     u8 buffer_complete = 0;
 685
 686     /* Dual field stream */
 687     buffer_complete =
 688         ((dma_q->current_field == 2) &&
 689         (dma_q->lines_completed >= dma_q->lines_per_field) &&
 690         dma_q->field1_done);
 691
 692     return buffer_complete;
 693 }
 694
 695
 696 /* ------------------------------------------------------------------
 697         Videobuf operations
 698    ------------------------------------------------------------------*/
 699
 700 static int
 701 buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
 702 {
 703         struct cx231xx_fh *fh = vq->priv_data;
 704         struct cx231xx        *dev = fh->dev;
 705         struct v4l2_frequency f;
 706
 707         *size = ( fh->dev->width * fh->dev->height * dev->format->depth + 7)  >> 3;
 708         if (0 == *count)
 709                 *count = CX231XX_DEF_BUF;
 710
 711         if (*count < CX231XX_MIN_BUF)
 712                 *count = CX231XX_MIN_BUF;
 713
 714         /* Ask tuner to go to analog mode */
 715         memset(&f, 0, sizeof(f));
 716         f.frequency = dev->ctl_freq;
 717     f.type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
 718
 719         cx231xx_i2c_call_clients(&dev->i2c_bus[1], VIDIOC_S_FREQUENCY, &f);
 720
 721         return 0;
 722 }
 723
 724 /* This is called *without* dev->slock held; please keep it that way */
 725 static void free_buffer(struct videobuf_queue *vq, struct cx231xx_buffer *buf)
 726 {
 727         struct cx231xx_fh     *fh  = vq->priv_data;
 728         struct cx231xx        *dev = fh->dev;
 729         unsigned long flags = 0;
 730         if (in_interrupt())
 731                 BUG();
 732
 733         /* We used to wait for the buffer to finish here, but this didn't work
 734            because, as we were keeping the state as VIDEOBUF_QUEUED,
 735            videobuf_queue_cancel marked it as finished for us.
 736            (Also, it could wedge forever if the hardware was misconfigured.)
 737
 738            This should be safe; by the time we get here, the buffer isn't
 739            queued anymore. If we ever start marking the buffers as
 740            VIDEOBUF_ACTIVE, it won't be, though.
 741         */
 742         spin_lock_irqsave(&dev->video_mode.slock, flags);
 743         if (dev->video_mode.isoc_ctl.buf == buf)
 744                 dev->video_mode.isoc_ctl.buf = NULL;
 745         spin_unlock_irqrestore(&dev->video_mode.slock, flags);
 746
 747         videobuf_vmalloc_free(&buf->vb);
 748         buf->vb.state = VIDEOBUF_NEEDS_INIT;
 749 }
 750
 751 static int
 752 buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
 753                                                 enum v4l2_field field)
 754 {
 755         struct cx231xx_fh     *fh  = vq->priv_data;
 756         struct cx231xx_buffer *buf = container_of(vb, struct cx231xx_buffer, vb);
 757         struct cx231xx        *dev = fh->dev;
 758         int                  rc = 0, urb_init = 0;
 759
 760         /* The only currently supported format is 16 bits/pixel */
 761         buf->vb.size = (fh->dev->width * fh->dev->height * dev->format->depth + 7) >> 3;
 762
 763         if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
 764                 return -EINVAL;
 765
 766         buf->vb.width  = dev->width;
 767         buf->vb.height = dev->height;
 768         buf->vb.field  = field;
 769
 770         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
 771                 rc = videobuf_iolock(vq, &buf->vb, NULL);
 772                 if (rc < 0)
 773                         goto fail;
 774         }
 775
 776         if (!dev->video_mode.isoc_ctl.num_bufs)
 777                 urb_init = 1;
 778
 779         if (urb_init) {
 780                 rc = cx231xx_init_isoc(dev, CX231XX_NUM_PACKETS,
 781                                       CX231XX_NUM_BUFS, dev->video_mode.max_pkt_size,
 782                                       cx231xx_isoc_copy);
 783                 if (rc < 0)
 784                         goto fail;
 785         }
 786
 787         buf->vb.state = VIDEOBUF_PREPARED;
 788         return 0;
 789
 790 fail:
 791         free_buffer(vq, buf);
 792         return rc;
 793 }
 794
 795 static void
 796 buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 797 {
 798         struct cx231xx_buffer    *buf     = container_of(vb, struct cx231xx_buffer, vb);
 799         struct cx231xx_fh        *fh      = vq->priv_data;
 800         struct cx231xx           *dev     = fh->dev;
 801         struct cx231xx_dmaqueue  *vidq    = &dev->video_mode.vidq;
 802
 803         buf->vb.state = VIDEOBUF_QUEUED;
 804         list_add_tail(&buf->vb.queue, &vidq->active);
 805
 806 }
 807
 808 static void buffer_release(struct videobuf_queue *vq,
 809                                 struct videobuf_buffer *vb)
 810 {
 811         struct cx231xx_buffer   *buf  = container_of(vb, struct cx231xx_buffer, vb);
 812         struct cx231xx_fh       *fh   = vq->priv_data;
 813         struct cx231xx          *dev  = (struct cx231xx *)fh->dev;
 814
 815         cx231xx_isocdbg("cx231xx: called buffer_release\n");
 816
 817         free_buffer(vq, buf);
 818 }
 819
 820 static struct videobuf_queue_ops cx231xx_video_qops = {
 821         .buf_setup      = buffer_setup,
 822         .buf_prepare    = buffer_prepare,
 823         .buf_queue      = buffer_queue,
 824         .buf_release    = buffer_release,
 825 };
 826
 827 /*********************  v4l2 interface  **************************************/
 828
 829
 830 void video_mux(struct cx231xx *dev, int index)
 831 {
 832
 833         struct v4l2_routing route;
 834
 835         route.input = INPUT(index)->vmux;
 836         route.output = 0;
 837         dev->video_input = index;
 838         dev->ctl_ainput = INPUT(index)->amux;
 839
 840     cx231xx_set_video_input_mux(dev,index);
 841
 842     cx231xx_i2c_call_clients(&dev->i2c_bus[0], VIDIOC_INT_S_VIDEO_ROUTING, &route);
 843
 844     cx231xx_set_audio_input(dev, dev->ctl_ainput );
 845
 846     cx231xx_info("video_mux : %d\n", index);
 847
 848     /* do mode control overrides if required */
 849     cx231xx_do_mode_ctrl_overrides(dev);
 850 }
 851
 852 /* Usage lock check functions */
 853 static int res_get(struct cx231xx_fh *fh)
 854 {
 855         struct cx231xx    *dev = fh->dev;
 856         int              rc   = 0;
 857
 858         /* This instance already has stream_on */
 859         if (fh->stream_on)
 860                 return rc;
 861
 862     if(fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 863             if (dev->stream_on)
 864                     return -EBUSY;
 865         dev->stream_on = 1;
 866     } else if(fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
 867         if (dev->vbi_stream_on)
 868                     return -EBUSY;
 869         dev->vbi_stream_on = 1;
 870     } else
 871         return -EINVAL;
 872
 873         fh->stream_on  = 1;
 874
 875         return rc;
 876 }
 877
 878 static int res_check(struct cx231xx_fh *fh)
 879 {
 880         return (fh->stream_on);
 881 }
 882
 883 static void res_free(struct cx231xx_fh *fh)
 884 {
 885         struct cx231xx    *dev = fh->dev;
 886
 887         fh->stream_on = 0;
 888
 889     if(fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 890         dev->stream_on = 0;
 891     if(fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
 892             dev->vbi_stream_on = 0;
 893 }
 894
 895 static int check_dev(struct cx231xx *dev)
 896 {
 897         if (dev->state & DEV_DISCONNECTED) {
 898                 cx231xx_errdev("v4l2 ioctl: device not present\n");
 899                 return -ENODEV;
 900         }
 901
 902         if (dev->state & DEV_MISCONFIGURED) {
 903                 cx231xx_errdev("v4l2 ioctl: device is misconfigured; "
 904                               "close and open it again\n");
 905                 return -EIO;
 906         }
 907         return 0;
 908 }
 909
 910 void get_scale(struct cx231xx *dev,
 911                         unsigned int width, unsigned int height,
 912                         unsigned int *hscale, unsigned int *vscale)
 913 {
 914         unsigned int          maxw   = norm_maxw(dev);
 915         unsigned int          maxh   = norm_maxh(dev);
 916
 917         *hscale = (((unsigned long)maxw) << 12) / width - 4096L;
 918         if (*hscale >= 0x4000)
 919                 *hscale = 0x3fff;
 920
 921         *vscale = (((unsigned long)maxh) << 12) / height - 4096L;
 922         if (*vscale >= 0x4000)
 923                 *vscale = 0x3fff;
 924
 925     dev->hscale = *hscale;
 926     dev->vscale = *vscale;
 927
 928 }
 929
 930 /* ------------------------------------------------------------------
 931         IOCTL vidioc handling
 932    ------------------------------------------------------------------*/
 933
 934 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 935                                         struct v4l2_format *f)
 936 {
 937         struct cx231xx_fh      *fh  = priv;
 938         struct cx231xx         *dev = fh->dev;
 939
 940         mutex_lock(&dev->lock);
 941
 942         f->fmt.pix.width = dev->width;
 943         f->fmt.pix.height = dev->height;
 944         f->fmt.pix.pixelformat = dev->format->fourcc;;
 945         f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3;;
 946         f->fmt.pix.sizeimage = f->fmt.pix.bytesperline  * dev->height;
 947         f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
 948
 949         f->fmt.pix.field = V4L2_FIELD_INTERLACED;
 950
 951         mutex_unlock(&dev->lock);
 952         return 0;
 953 }
 954
 955 static struct cx231xx_fmt *format_by_fourcc(unsigned int fourcc)
 956 {
 957         unsigned int i;
 958
 959         for (i = 0; i < ARRAY_SIZE(format); i++)
 960                 if (format[i].fourcc == fourcc)
 961                         return &format[i];
 962
 963         return NULL;
 964 }
 965
 966 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 967                         struct v4l2_format *f)
 968 {
 969         struct cx231xx_fh      *fh    = priv;
 970         struct cx231xx         *dev   = fh->dev;
 971         int                   width  = f->fmt.pix.width;
 972         int                   height = f->fmt.pix.height;
 973         unsigned int          maxw   = norm_maxw(dev);
 974         unsigned int          maxh   = norm_maxh(dev);
 975         unsigned int          hscale, vscale;
 976     struct cx231xx_fmt     *fmt;
 977
 978         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
 979         if (!fmt) {
 980                 cx231xx_videodbg("Fourcc format (%08x) invalid.\n",
 981                                 f->fmt.pix.pixelformat);
 982                 return -EINVAL;
 983         }
 984
 985         /* width must even because of the YUYV format
 986            height must be even because of interlacing */
 987         height &= 0xfffe;
 988         width &= 0xfffe;
 989
 990         if (unlikely(height < 32))
 991                 height = 32;
 992         if (unlikely(height > maxh))
 993                 height = maxh;
 994         if (unlikely(width < 48))
 995                 width = 48;
 996         if (unlikely(width > maxw))
 997                 width = maxw;
 998
 999         get_scale(dev, width, height, &hscale, &vscale);
1000
1001         width = (((unsigned long)maxw) << 12) / (hscale + 4096L);
1002         height = (((unsigned long)maxh) << 12) / (vscale + 4096L);
1003
1004         f->fmt.pix.width = width;
1005         f->fmt.pix.height = height;
1006         f->fmt.pix.pixelformat = fmt->fourcc;
1007         f->fmt.pix.bytesperline = (dev->width * fmt->depth + 7) >> 3;
1008         f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height;
1009         f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1010         f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1011
1012         return 0;
1013 }
1014
1015 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1016                         struct v4l2_format *f)
1017 {
1018         struct cx231xx_fh      *fh  = priv;
1019         struct cx231xx         *dev = fh->dev;
1020         int                   rc;
1021     struct cx231xx_fmt     *fmt;
1022
1023         rc = check_dev(dev);
1024         if (rc < 0)
1025                 return rc;
1026
1027
1028         mutex_lock(&dev->lock);
1029
1030     vidioc_try_fmt_vid_cap(file, priv, f);
1031
1032     fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1033         if (!fmt) {
1034                 rc = -EINVAL;
1035                 goto out;
1036         }
1037
1038         if (videobuf_queue_is_busy(&fh->vb_vidq)) {
1039                 cx231xx_errdev("%s queue busy\n", __func__);
1040                 rc = -EBUSY;
1041                 goto out;
1042         }
1043
1044         if (dev->stream_on && !fh->stream_on) {
1045                 cx231xx_errdev("%s device in use by another fh\n", __func__);
1046                 rc = -EBUSY;
1047                 goto out;
1048         }
1049
1050         /* set new image size */
1051         dev->width = f->fmt.pix.width;
1052         dev->height = f->fmt.pix.height;
1053     dev->format = fmt;
1054         get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
1055
1056     cx231xx_i2c_call_clients(&dev->i2c_bus[0], VIDIOC_S_FMT, f);
1057
1058     /* Set the correct alternate setting for this resolution */
1059         cx231xx_resolution_set(dev);
1060
1061 out:
1062         mutex_unlock(&dev->lock);
1063         return rc;
1064 }
1065
1066 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
1067 {
1068         struct cx231xx_fh   *fh  = priv;
1069         struct cx231xx      *dev = fh->dev;
1070
1071         *id = dev->norm;
1072         return 0;
1073 }
1074
1075 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id * norm)
1076 {
1077         struct cx231xx_fh   *fh  = priv;
1078         struct cx231xx      *dev = fh->dev;
1079         struct v4l2_format f;
1080         int                rc;
1081
1082         rc = check_dev(dev);
1083         if (rc < 0)
1084                 return rc;
1085
1086     cx231xx_info("vidioc_s_std : 0x%x\n", (unsigned int)*norm);
1087
1088         mutex_lock(&dev->lock);
1089         dev->norm = *norm;
1090
1091
1092         /* Adjusts width/height, if needed */
1093         f.fmt.pix.width = dev->width;
1094         f.fmt.pix.height = dev->height;
1095         vidioc_try_fmt_vid_cap(file, priv, &f);
1096
1097         /* set new image size */
1098         dev->width = f.fmt.pix.width;
1099         dev->height = f.fmt.pix.height;
1100         get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
1101
1102         cx231xx_i2c_call_clients(&dev->i2c_bus[0], VIDIOC_S_STD, &dev->norm);
1103
1104         mutex_unlock(&dev->lock);
1105
1106     cx231xx_resolution_set(dev);
1107
1108     /* do mode control overrides */
1109     cx231xx_do_mode_ctrl_overrides(dev);
1110
1111         return 0;
1112 }
1113
1114 static const char *iname[] = {
1115         [CX231XX_VMUX_COMPOSITE1] = "Composite1",
1116         [CX231XX_VMUX_SVIDEO]     = "S-Video",
1117         [CX231XX_VMUX_TELEVISION] = "Television",
1118     [CX231XX_VMUX_CABLE]      = "Cable TV",
1119     [CX231XX_VMUX_DVB]        = "DVB",
1120         [CX231XX_VMUX_DEBUG]      = "for debug only",
1121 };
1122
1123 static int vidioc_enum_input(struct file *file, void *priv,
1124                                 struct v4l2_input *i)
1125 {
1126         struct cx231xx_fh   *fh  = priv;
1127         struct cx231xx      *dev = fh->dev;
1128         unsigned int       n;
1129
1130         n = i->index;
1131         if (n >= MAX_CX231XX_INPUT)
1132                 return -EINVAL;
1133         if (0 == INPUT(n)->type)
1134                 return -EINVAL;
1135
1136         i->index = n;
1137         i->type = V4L2_INPUT_TYPE_CAMERA;
1138
1139         strcpy(i->name, iname[INPUT(n)->type]);
1140
1141         if ((CX231XX_VMUX_TELEVISION == INPUT(n)->type) ||
1142                 (CX231XX_VMUX_CABLE == INPUT(n)->type))
1143                 i->type = V4L2_INPUT_TYPE_TUNER;
1144
1145         i->std = dev->vdev->tvnorms;
1146
1147         return 0;
1148 }
1149
1150 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1151 {
1152         struct cx231xx_fh   *fh  = priv;
1153         struct cx231xx      *dev = fh->dev;
1154
1155         *i = dev->video_input;
1156
1157         return 0;
1158 }
1159
1160 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1161 {
1162         struct cx231xx_fh   *fh  = priv;
1163         struct cx231xx      *dev = fh->dev;
1164         int                rc;
1165
1166         rc = check_dev(dev);
1167         if (rc < 0)
1168                 return rc;
1169
1170         if (i >= MAX_CX231XX_INPUT)
1171                 return -EINVAL;
1172         if (0 == INPUT(i)->type)
1173                 return -EINVAL;
1174
1175         mutex_lock(&dev->lock);
1176
1177         video_mux(dev, i);
1178
1179         mutex_unlock(&dev->lock);
1180         return 0;
1181 }
1182
1183 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1184 {
1185         struct cx231xx_fh   *fh    = priv;
1186         struct cx231xx      *dev   = fh->dev;
1187
1188         switch (a->index) {
1189         case CX231XX_AMUX_VIDEO:
1190                 strcpy(a->name, "Television");
1191                 break;
1192         case CX231XX_AMUX_LINE_IN:
1193                 strcpy(a->name, "Line In");
1194                 break;
1195         default:
1196                 return -EINVAL;
1197         }
1198
1199         a->index = dev->ctl_ainput;
1200         a->capability = V4L2_AUDCAP_STEREO;
1201
1202         return 0;
1203 }
1204
1205 static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
1206 {
1207         struct cx231xx_fh   *fh  = priv;
1208         struct cx231xx      *dev = fh->dev;
1209     int status = 0;
1210
1211
1212         /* Doesn't allow manual routing */
1213         if (a->index != dev->ctl_ainput)
1214                 return -EINVAL;
1215
1216         dev->ctl_ainput = INPUT(a->index)->amux;
1217     status = cx231xx_set_audio_input(dev, dev->ctl_ainput);
1218
1219         return status;
1220 }
1221
1222 static int vidioc_queryctrl(struct file *file, void *priv,
1223                                 struct v4l2_queryctrl *qc)
1224 {
1225         struct cx231xx_fh      *fh  = priv;
1226         struct cx231xx         *dev = fh->dev;
1227         int                   id  = qc->id;
1228         int                   i;
1229         int                   rc;
1230
1231         rc = check_dev(dev);
1232         if (rc < 0)
1233                 return rc;
1234
1235     qc->id = v4l2_ctrl_next(ctrl_classes, qc->id);
1236         if (unlikely(qc->id == 0))
1237                 return -EINVAL;
1238
1239         memset(qc, 0, sizeof(*qc));
1240
1241         qc->id = id;
1242
1243     if (qc->id < V4L2_CID_BASE ||
1244             qc->id >= V4L2_CID_LASTP1)
1245                 return -EINVAL;
1246
1247         for (i = 0; i < CX231XX_CTLS; i++)
1248                 if (cx231xx_ctls[i].v.id == qc->id)
1249                         break;
1250
1251         if (i == CX231XX_CTLS) {
1252                 *qc = no_ctl;
1253                 return 0;
1254         }
1255         *qc = cx231xx_ctls[i].v;
1256
1257         mutex_lock(&dev->lock);
1258     cx231xx_i2c_call_clients(&dev->i2c_bus[0], VIDIOC_QUERYCTRL, qc);
1259         mutex_unlock(&dev->lock);
1260
1261         if (qc->type)
1262                 return 0;
1263         else
1264                 return -EINVAL;
1265 }
1266
1267 static int vidioc_g_ctrl(struct file *file, void *priv,
1268                                 struct v4l2_control *ctrl)
1269 {
1270         struct cx231xx_fh      *fh  = priv;
1271         struct cx231xx         *dev = fh->dev;
1272         int                   rc;
1273
1274         rc = check_dev(dev);
1275         if (rc < 0)
1276                 return rc;
1277
1278         mutex_lock(&dev->lock);
1279
1280         cx231xx_i2c_call_clients(&dev->i2c_bus[0], VIDIOC_G_CTRL, ctrl);
1281
1282         mutex_unlock(&dev->lock);
1283         return rc;
1284 }
1285
1286 static int vidioc_s_ctrl(struct file *file, void *priv,
1287                                 struct v4l2_control *ctrl)
1288 {
1289         struct cx231xx_fh      *fh  = priv;
1290         struct cx231xx         *dev = fh->dev;
1291         int                   rc;
1292
1293         rc = check_dev(dev);
1294         if (rc < 0)
1295                 return rc;
1296
1297         mutex_lock(&dev->lock);
1298
1299         cx231xx_i2c_call_clients(&dev->i2c_bus[0], VIDIOC_S_CTRL, ctrl);
1300
1301         mutex_unlock(&dev->lock);
1302         return rc;
1303 }
1304
1305 static int vidioc_g_tuner(struct file *file, void *priv,
1306                                 struct v4l2_tuner *t)
1307 {
1308         struct cx231xx_fh      *fh  = priv;
1309         struct cx231xx         *dev = fh->dev;
1310         int                   rc;
1311
1312         rc = check_dev(dev);
1313         if (rc < 0)
1314                 return rc;
1315
1316         if (0 != t->index)
1317                 return -EINVAL;
1318
1319         strcpy(t->name, "Tuner");
1320
1321     t->type       = V4L2_TUNER_ANALOG_TV;
1322         t->capability = V4L2_TUNER_CAP_NORM;
1323         t->rangehigh  = 0xffffffffUL;
1324         t->signal     = 0xffff ; /* LOCKED */
1325
1326         return 0;
1327 }
1328
1329 static int vidioc_s_tuner(struct file *file, void *priv,
1330                                 struct v4l2_tuner *t)
1331 {
1332         struct cx231xx_fh      *fh  = priv;
1333         struct cx231xx         *dev = fh->dev;
1334         int                   rc;
1335
1336         rc = check_dev(dev);
1337         if (rc < 0)
1338                 return rc;
1339
1340         if (0 != t->index)
1341                 return -EINVAL;
1342 #if 0
1343         mutex_lock(&dev->lock);
1344
1345         cx231xx_i2c_call_clients(&dev->i2c_bus[1], VIDIOC_S_TUNER, t);
1346
1347         mutex_unlock(&dev->lock);
1348 #endif
1349         return 0;
1350 }
1351
1352 static int vidioc_g_frequency(struct file *file, void *priv,
1353                                 struct v4l2_frequency *f)
1354 {
1355         struct cx231xx_fh      *fh  = priv;
1356         struct cx231xx         *dev = fh->dev;
1357
1358     mutex_lock(&dev->lock);
1359         f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1360         f->frequency = dev->ctl_freq;
1361
1362     cx231xx_i2c_call_clients(&dev->i2c_bus[1], VIDIOC_G_FREQUENCY, f);
1363
1364     mutex_unlock(&dev->lock);
1365
1366         return 0;
1367 }
1368
1369 static int vidioc_s_frequency(struct file *file, void *priv,
1370                                 struct v4l2_frequency *f)
1371 {
1372         struct cx231xx_fh      *fh  = priv;
1373         struct cx231xx         *dev = fh->dev;
1374         int                   rc;
1375
1376         rc = check_dev(dev);
1377         if (rc < 0)
1378                 return rc;
1379
1380         if (0 != f->tuner)
1381                 return -EINVAL;
1382
1383         if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1384                 return -EINVAL;
1385         if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1386                 return -EINVAL;
1387
1388     /* set pre channel change settings in DIF first */
1389     rc = cx231xx_tuner_pre_channel_change(dev);
1390
1391         mutex_lock(&dev->lock);
1392
1393         dev->ctl_freq = f->frequency;
1394
1395         if(dev->tuner_type == TUNER_XC5000) {
1396                 if( dev->cx231xx_set_analog_freq != NULL ) {
1397                         dev->cx231xx_set_analog_freq(dev, f->frequency );
1398                 }
1399         } else {
1400                 cx231xx_i2c_call_clients(&dev->i2c_bus[1], VIDIOC_S_FREQUENCY, f);
1401         }
1402
1403         mutex_unlock(&dev->lock);
1404
1405     /* set post channel change settings in DIF first */
1406     rc = cx231xx_tuner_post_channel_change(dev);
1407
1408         cx231xx_info("Set New FREQUENCY to %d\n",f->frequency);
1409
1410         return rc;
1411 }
1412
1413 #ifdef CONFIG_VIDEO_ADV_DEBUG
1414
1415
1416 /*
1417   -R, --list-registers=type=<host/i2cdrv/i2caddr>,chip=<chip>[,min=<addr>,max=<addr>]
1418                      dump registers from <min> to <max> [VIDIOC_DBG_G_REGISTER]
1419   -r, --set-register=type=<host/i2cdrv/i2caddr>,chip=<chip>,reg=<addr>,val=<val>
1420                      set the register [VIDIOC_DBG_S_REGISTER]
1421
1422   if type == host, then <chip> is the hosts chip ID (default 0)
1423   if type == i2cdrv (default), then <chip> is the I2C driver name or ID
1424   if type == i2caddr, then <chip> is the 7-bit I2C address
1425 */
1426
1427
1428 static int vidioc_g_register(struct file *file, void *priv,
1429                              struct v4l2_dbg_register *reg)
1430 {
1431         struct cx231xx_fh      *fh  = priv;
1432         struct cx231xx         *dev = fh->dev;
1433         int ret = 0;
1434     u8 value[4] ={0,0,0,0};
1435     u32 data = 0;
1436
1437     switch (reg->match.type) {
1438         case V4L2_CHIP_MATCH_HOST:
1439             switch(reg->match.addr) {
1440             case 0: /* Cx231xx - internal registers */
1441                 ret = cx231xx_read_ctrl_reg(dev,VRT_GET_REGISTER, (u16) reg->reg, value, 4);
1442                 reg->val = value[0] | value[1] << 8 | value[2] << 16 | value[3] << 24;
1443                 break;
1444             case 1: /* Colibri - read byte */
1445                 ret = cx231xx_read_i2c_data(dev, Colibri_DEVICE_ADDRESS, (u16) reg->reg, 2, &data, 1);
1446                 reg->val = le32_to_cpu(data & 0xff);
1447                 break;
1448             case 14: /* Colibri - read dword */
1449                 ret = cx231xx_read_i2c_data(dev, Colibri_DEVICE_ADDRESS, (u16) reg->reg, 2, &data, 4);
1450                 reg->val = le32_to_cpu(data);
1451                 break;
1452             case 2: /* Hammerhead - read byte */
1453                 ret = cx231xx_read_i2c_data(dev, HAMMERHEAD_I2C_ADDRESS, (u16) reg->reg, 2, &data, 1);
1454                 reg->val = le32_to_cpu(data & 0xff);
1455                 break;
1456             case 24: /* Hammerhead - read dword */
1457                 ret = cx231xx_read_i2c_data(dev, HAMMERHEAD_I2C_ADDRESS, (u16) reg->reg, 2, &data, 4);
1458                 reg->val = le32_to_cpu(data);
1459                 break;
1460             case 3: /* flatiron - read byte */
1461                 ret = cx231xx_read_i2c_data(dev, Flatrion_DEVICE_ADDRESS, (u16) reg->reg, 1, &data, 1);
1462                 reg->val = le32_to_cpu(data & 0xff);
1463                 break;
1464             case 34: /* flatiron - read dword */
1465                 ret = cx231xx_read_i2c_data(dev, Flatrion_DEVICE_ADDRESS, (u16) reg->reg, 1, &data, 4);
1466                 reg->val = le32_to_cpu(data);
1467                 break;
1468             }
1469             return ret < 0?ret:0;
1470
1471             case V4L2_CHIP_MATCH_I2C_DRIVER:
1472                     cx231xx_i2c_call_clients(&dev->i2c_bus[0], VIDIOC_DBG_G_REGISTER, reg);
1473                     return 0;
1474             case V4L2_CHIP_MATCH_I2C_ADDR:
1475                     /* Not supported yet */
1476                     return -EINVAL;
1477             default:
1478                     if (!v4l2_chip_match_host(&reg->match))
1479                             return -EINVAL;
1480         }
1481
1482
1483     mutex_lock(&dev->lock);
1484
1485         cx231xx_i2c_call_clients(&dev->i2c_bus[0], VIDIOC_DBG_G_REGISTER, reg);
1486
1487     mutex_unlock(&dev->lock);
1488
1489         return ret;
1490 }
1491
1492 static int vidioc_s_register(struct file *file, void *priv,
1493                              struct v4l2_dbg_register *reg)
1494 {
1495         struct cx231xx_fh      *fh  = priv;
1496         struct cx231xx         *dev = fh->dev;
1497         int ret = 0;
1498         __le64 buf;
1499     u32 value;
1500     u8 data[4] ={0,0,0,0};
1501
1502         buf = cpu_to_le64(reg->val);
1503
1504     switch (reg->match.type) {
1505         case V4L2_CHIP_MATCH_HOST:
1506             {
1507                 value = (u32) buf & 0xffffffff;
1508
1509                 switch(reg->match.addr) {
1510                     case 0: /* cx231xx internal registers */
1511                         data[0]=(u8)value;
1512                         data[1]=(u8)(value>>8);
1513                         data[2]=(u8)(value>>16);
1514                         data[3]=(u8)(value>>24);
1515                         ret = cx231xx_write_ctrl_reg(dev,VRT_SET_REGISTER, (u16) reg->reg, data, 4);
1516                         break;
1517                     case 1: /* Colibri - read byte */
1518                         ret = cx231xx_write_i2c_data(dev, Colibri_DEVICE_ADDRESS, (u16) reg->reg, 2, value, 1);
1519                         break;
1520                     case 14: /* Colibri - read dword */
1521                         ret = cx231xx_write_i2c_data(dev, Colibri_DEVICE_ADDRESS, (u16) reg->reg, 2, value, 4);
1522                         break;
1523                     case 2: /* Hammerhead - read byte */
1524                         ret = cx231xx_write_i2c_data(dev, HAMMERHEAD_I2C_ADDRESS, (u16) reg->reg, 2, value, 1);
1525                         break;
1526                     case 24: /* Hammerhead - read dword */
1527                         ret = cx231xx_write_i2c_data(dev, HAMMERHEAD_I2C_ADDRESS, (u16) reg->reg, 2, value, 4);
1528                         break;
1529                     case 3: /* flatiron - read byte */
1530                         ret = cx231xx_write_i2c_data(dev, Flatrion_DEVICE_ADDRESS, (u16) reg->reg, 1, value, 1);
1531                         break;
1532                     case 34: /* flatiron - read dword */
1533                         ret = cx231xx_write_i2c_data(dev, Flatrion_DEVICE_ADDRESS, (u16) reg->reg, 1, value, 4);
1534                         break;
1535                 }
1536             }
1537             return ret < 0?ret:0;
1538
1539         default:
1540             break;
1541     }
1542
1543         mutex_lock(&dev->lock);
1544
1545         cx231xx_i2c_call_clients(&dev->i2c_bus[0], VIDIOC_DBG_S_REGISTER, reg);
1546
1547     mutex_unlock(&dev->lock);
1548
1549     return ret;
1550 }
1551 #endif
1552
1553
1554 static int vidioc_cropcap(struct file *file, void *priv,
1555                                         struct v4l2_cropcap *cc)
1556 {
1557         struct cx231xx_fh      *fh  = priv;
1558         struct cx231xx         *dev = fh->dev;
1559
1560         if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1561                 return -EINVAL;
1562
1563         cc->bounds.left = 0;
1564         cc->bounds.top = 0;
1565         cc->bounds.width = dev->width;
1566         cc->bounds.height = dev->height;
1567         cc->defrect = cc->bounds;
1568         cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */
1569         cc->pixelaspect.denominator = 59;
1570
1571         return 0;
1572 }
1573
1574 static int vidioc_streamon(struct file *file, void *priv,
1575                                         enum v4l2_buf_type type)
1576 {
1577         struct cx231xx_fh      *fh  = priv;
1578         struct cx231xx         *dev = fh->dev;
1579         int                   rc;
1580
1581         rc = check_dev(dev);
1582         if (rc < 0)
1583                 return rc;
1584
1585     mutex_lock(&dev->lock);
1586         rc = res_get(fh);
1587
1588         if (likely(rc >= 0))
1589                 rc = videobuf_streamon(&fh->vb_vidq);
1590
1591         mutex_unlock(&dev->lock);
1592
1593         return rc;
1594 }
1595
1596 static int vidioc_streamoff(struct file *file, void *priv,
1597                                         enum v4l2_buf_type type)
1598 {
1599         struct cx231xx_fh      *fh  = priv;
1600         struct cx231xx         *dev = fh->dev;
1601         int                   rc;
1602
1603         rc = check_dev(dev);
1604         if (rc < 0)
1605                 return rc;
1606
1607         if ( (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
1608          (fh->type != V4L2_BUF_TYPE_VBI_CAPTURE) )
1609                 return -EINVAL;
1610         if (type != fh->type)
1611                 return -EINVAL;
1612
1613     mutex_lock(&dev->lock);
1614
1615         videobuf_streamoff(&fh->vb_vidq);
1616         res_free(fh);
1617
1618     mutex_unlock(&dev->lock);
1619
1620         return 0;
1621 }
1622
1623 static int vidioc_querycap(struct file *file, void  *priv,
1624                                         struct v4l2_capability *cap)
1625 {
1626         struct cx231xx_fh      *fh  = priv;
1627         struct cx231xx         *dev = fh->dev;
1628
1629         strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
1630         strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
1631         strlcpy(cap->bus_info, dev_name(&dev->udev->dev), sizeof(cap->bus_info));
1632
1633         cap->version = CX231XX_VERSION_CODE;
1634
1635         cap->capabilities =
1636                         V4L2_CAP_VBI_CAPTURE |
1637 #if 0
1638                         V4L2_CAP_SLICED_VBI_CAPTURE |
1639 #endif
1640                         V4L2_CAP_VIDEO_CAPTURE |
1641                         V4L2_CAP_AUDIO |
1642                         V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
1643
1644         if (dev->tuner_type != TUNER_ABSENT)
1645                 cap->capabilities |= V4L2_CAP_TUNER;
1646
1647         return 0;
1648 }
1649
1650 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1651                                         struct v4l2_fmtdesc *f)
1652 {
1653     if (unlikely(f->index >= ARRAY_SIZE(format)))
1654                 return -EINVAL;
1655
1656         strlcpy(f->description, format[f->index].name, sizeof(f->description));
1657         f->pixelformat = format[f->index].fourcc;
1658
1659         return 0;
1660 }
1661
1662 /* Sliced VBI ioctls */
1663 static int vidioc_g_fmt_sliced_vbi_cap(struct file *file, void *priv,
1664                                         struct v4l2_format *f)
1665 {
1666         struct cx231xx_fh      *fh  = priv;
1667         struct cx231xx         *dev = fh->dev;
1668         int                   rc;
1669
1670         rc = check_dev(dev);
1671         if (rc < 0)
1672                 return rc;
1673
1674         mutex_lock(&dev->lock);
1675
1676         f->fmt.sliced.service_set = 0;
1677
1678         cx231xx_i2c_call_clients(&dev->i2c_bus[0], VIDIOC_G_FMT, f);
1679
1680         if (f->fmt.sliced.service_set == 0)
1681                 rc = -EINVAL;
1682
1683         mutex_unlock(&dev->lock);
1684         return rc;
1685 }
1686
1687 static int vidioc_try_set_sliced_vbi_cap(struct file *file, void *priv,
1688                         struct v4l2_format *f)
1689 {
1690         struct cx231xx_fh      *fh  = priv;
1691         struct cx231xx         *dev = fh->dev;
1692         int                   rc;
1693
1694         rc = check_dev(dev);
1695         if (rc < 0)
1696                 return rc;
1697
1698         mutex_lock(&dev->lock);
1699         cx231xx_i2c_call_clients(&dev->i2c_bus[0], VIDIOC_G_FMT, f);
1700         mutex_unlock(&dev->lock);
1701
1702         if (f->fmt.sliced.service_set == 0)
1703                 return -EINVAL;
1704
1705         return 0;
1706 }
1707
1708
1709 /* RAW VBI ioctls */
1710
1711 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1712                                         struct v4l2_format *f)
1713 {
1714     struct cx231xx_fh      *fh  = priv;
1715         struct cx231xx         *dev = fh->dev;
1716
1717         f->fmt.vbi.sampling_rate = (dev->norm & V4L2_STD_625_50) ?
1718                                 35468950:28636363;
1719         f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1720         f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1721         f->fmt.vbi.offset = 64 * 4;
1722         f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1723                                PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1724         f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1725                                PAL_VBI_LINES : NTSC_VBI_LINES;
1726         f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1727                                PAL_VBI_START_LINE+312 : NTSC_VBI_START_LINE + 263;
1728         f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1729
1730         return 0;
1731
1732 }
1733
1734 static int vidioc_try_fmt_vbi_cap(struct file *file, void *priv,
1735                         struct v4l2_format *f)
1736 {
1737     struct cx231xx_fh      *fh  = priv;
1738         struct cx231xx         *dev = fh->dev;
1739
1740     if (dev->vbi_stream_on && !fh->stream_on) {
1741                 cx231xx_errdev("%s device in use by another fh\n", __func__);
1742                 return -EBUSY;
1743         }
1744
1745         f->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1746         f->fmt.vbi.sampling_rate = (dev->norm & V4L2_STD_625_50) ?
1747                                 35468950:28636363;
1748         f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1749         f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1750         f->fmt.vbi.offset = 244;
1751         f->fmt.vbi.flags = 0;
1752         f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1753                                PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1754         f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1755                                PAL_VBI_LINES : NTSC_VBI_LINES;
1756         f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1757                                PAL_VBI_START_LINE+312 : NTSC_VBI_START_LINE + 263;
1758         f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1759
1760         return 0;
1761
1762 }
1763
1764 static int vidioc_reqbufs(struct file *file, void *priv,
1765                           struct v4l2_requestbuffers *rb)
1766 {
1767         struct cx231xx_fh      *fh  = priv;
1768         struct cx231xx         *dev = fh->dev;
1769         int                   rc;
1770
1771         rc = check_dev(dev);
1772         if (rc < 0)
1773                 return rc;
1774
1775         return (videobuf_reqbufs(&fh->vb_vidq, rb));
1776 }
1777
1778 static int vidioc_querybuf(struct file *file, void *priv,
1779                            struct v4l2_buffer *b)
1780 {
1781         struct cx231xx_fh      *fh  = priv;
1782         struct cx231xx         *dev = fh->dev;
1783         int                   rc;
1784
1785         rc = check_dev(dev);
1786         if (rc < 0)
1787                 return rc;
1788
1789         return (videobuf_querybuf(&fh->vb_vidq, b));
1790 }
1791
1792 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
1793 {
1794         struct cx231xx_fh      *fh  = priv;
1795         struct cx231xx         *dev = fh->dev;
1796         int                   rc;
1797
1798         rc = check_dev(dev);
1799         if (rc < 0)
1800                 return rc;
1801
1802         return (videobuf_qbuf(&fh->vb_vidq, b));
1803 }
1804
1805 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
1806 {
1807         struct cx231xx_fh      *fh  = priv;
1808         struct cx231xx         *dev = fh->dev;
1809         int                   rc;
1810
1811         rc = check_dev(dev);
1812         if (rc < 0)
1813                 return rc;
1814
1815         return (videobuf_dqbuf(&fh->vb_vidq, b,
1816                                 file->f_flags & O_NONBLOCK));
1817 }
1818
1819 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1820 static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
1821 {
1822         struct cx231xx_fh  *fh = priv;
1823
1824         return videobuf_cgmbuf(&fh->vb_vidq, mbuf, 8);
1825 }
1826 #endif
1827
1828
1829 /* ----------------------------------------------------------- */
1830 /* RADIO ESPECIFIC IOCTLS                                      */
1831 /* ----------------------------------------------------------- */
1832
1833 static int radio_querycap(struct file *file, void  *priv,
1834                           struct v4l2_capability *cap)
1835 {
1836         struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
1837
1838         strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
1839         strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
1840         usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
1841
1842         cap->version = CX231XX_VERSION_CODE;
1843         cap->capabilities = V4L2_CAP_TUNER;
1844         return 0;
1845 }
1846
1847 static int radio_g_tuner(struct file *file, void *priv,
1848                          struct v4l2_tuner *t)
1849 {
1850         struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
1851
1852         if (unlikely(t->index > 0))
1853                 return -EINVAL;
1854
1855         strcpy(t->name, "Radio");
1856         t->type = V4L2_TUNER_RADIO;
1857
1858     mutex_lock(&dev->lock);
1859         cx231xx_i2c_call_clients(&dev->i2c_bus[1], VIDIOC_G_TUNER, t);
1860     mutex_unlock(&dev->lock);
1861
1862         return 0;
1863 }
1864
1865 static int radio_enum_input(struct file *file, void *priv,
1866                             struct v4l2_input *i)
1867 {
1868         if (i->index != 0)
1869                 return -EINVAL;
1870         strcpy(i->name, "Radio");
1871         i->type = V4L2_INPUT_TYPE_TUNER;
1872
1873         return 0;
1874 }
1875
1876 static int radio_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1877 {
1878         if (unlikely(a->index))
1879                 return -EINVAL;
1880
1881         strcpy(a->name, "Radio");
1882         return 0;
1883 }
1884
1885 static int radio_s_tuner(struct file *file, void *priv,
1886                          struct v4l2_tuner *t)
1887 {
1888         struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
1889
1890         if (0 != t->index)
1891                 return -EINVAL;
1892
1893     mutex_lock(&dev->lock);
1894         cx231xx_i2c_call_clients(&dev->i2c_bus[1], VIDIOC_S_TUNER, t);
1895     mutex_unlock(&dev->lock);
1896
1897         return 0;
1898 }
1899
1900 static int radio_s_audio(struct file *file, void *fh,
1901                          struct v4l2_audio *a)
1902 {
1903         return 0;
1904 }
1905
1906 static int radio_s_input(struct file *file, void *fh, unsigned int i)
1907 {
1908         return 0;
1909 }
1910
1911 static int radio_queryctrl(struct file *file, void *priv,
1912                            struct v4l2_queryctrl *c)
1913 {
1914         int i;
1915
1916         if (c->id <  V4L2_CID_BASE ||
1917                 c->id >= V4L2_CID_LASTP1)
1918                 return -EINVAL;
1919         if (c->id == V4L2_CID_AUDIO_MUTE) {
1920                 for (i = 0; i < CX231XX_CTLS; i++)
1921                         if (cx231xx_ctls[i].v.id == c->id)
1922                                 break;
1923                 *c = cx231xx_ctls[i].v;
1924         } else
1925                 *c = no_ctl;
1926         return 0;
1927 }
1928
1929 /*
1930  * cx231xx_v4l2_open()
1931  * inits the device and starts isoc transfer
1932  */
1933 static int cx231xx_v4l2_open(struct file *filp)
1934 {
1935     int minor = video_devdata(filp)->minor;
1936         int errCode = 0, radio = 0;
1937         struct cx231xx *dev = NULL;
1938         struct cx231xx_fh *fh;
1939         enum v4l2_buf_type fh_type = 0;
1940
1941     dev = cx231xx_get_device(minor, &fh_type, &radio);
1942         if (NULL == dev)
1943                 return -ENODEV;
1944
1945         mutex_lock(&dev->lock);
1946
1947         cx231xx_videodbg("open minor=%d type=%s users=%d\n",
1948                                 minor, v4l2_type_names[fh_type], dev->users);
1949
1950 #if 0
1951         errCode = cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
1952         if (errCode < 0) {
1953                 cx231xx_errdev("Device locked on digital mode. Can't open analog\n");
1954                 mutex_unlock(&dev->lock);
1955                 return -EBUSY;
1956         }
1957 #endif
1958
1959         fh = kzalloc(sizeof(struct cx231xx_fh), GFP_KERNEL);
1960         if (!fh) {
1961                 cx231xx_errdev("cx231xx-video.c: Out of memory?!\n");
1962                 mutex_unlock(&dev->lock);
1963                 return -ENOMEM;
1964         }
1965         fh->dev = dev;
1966         fh->radio = radio;
1967         fh->type = fh_type;
1968         filp->private_data = fh;
1969
1970         if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
1971                 dev->width = norm_maxw(dev);
1972                 dev->height = norm_maxh(dev);
1973                 dev->hscale = 0;
1974                 dev->vscale = 0;
1975
1976
1977         /* Power up in Analog TV mode */
1978         cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV);
1979
1980 #if 0
1981                 cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
1982 #endif
1983                 cx231xx_resolution_set(dev);
1984
1985         /* set video alternate setting */
1986         cx231xx_set_video_alternate(dev);
1987
1988                 /* Needed, since GPIO might have disabled power of
1989                    some i2c device */
1990                 cx231xx_config_i2c(dev);
1991
1992                 /* device needs to be initialized before isoc transfer */
1993         dev->video_input = dev->video_input > 2 ? 2: dev->video_input;
1994                 video_mux(dev, dev->video_input );
1995
1996         }
1997         if (fh->radio) {
1998                 cx231xx_videodbg("video_open: setting radio device\n");
1999
2000                 /* cx231xx_start_radio(dev); */
2001
2002                 cx231xx_i2c_call_clients(&dev->i2c_bus[1], AUDC_SET_RADIO, NULL);
2003         }
2004
2005         dev->users++;
2006
2007     if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2008             videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_video_qops,
2009                         NULL, &dev->video_mode.slock, fh->type, V4L2_FIELD_INTERLACED, /* V4L2_FIELD_SEQ_TB, */
2010                         sizeof(struct cx231xx_buffer), fh);
2011     }
2012
2013     if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
2014
2015         /* Set the required alternate setting  VBI interface works in Bulk mode only */
2016         cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
2017
2018         videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_vbi_qops,
2019                         NULL, &dev->vbi_mode.slock, fh->type, V4L2_FIELD_SEQ_TB, /* V4L2_FIELD_INTERLACED,  */
2020                         sizeof(struct cx231xx_buffer), fh);
2021     }
2022
2023         mutex_unlock(&dev->lock);
2024
2025         return errCode;
2026 }
2027
2028 /*
2029  * cx231xx_realease_resources()
2030  * unregisters the v4l2,i2c and usb devices
2031  * called when the device gets disconected or at module unload
2032 */
2033 void cx231xx_release_analog_resources(struct cx231xx *dev)
2034 {
2035
2036         /*FIXME: I2C IR should be disconnected */
2037
2038         if (dev->radio_dev) {
2039                 if (-1 != dev->radio_dev->minor)
2040                         video_unregister_device(dev->radio_dev);
2041                 else
2042                         video_device_release(dev->radio_dev);
2043                 dev->radio_dev = NULL;
2044         }
2045         if (dev->vbi_dev) {
2046                 cx231xx_info("V4L2 device /dev/vbi%d deregistered\n",
2047                             dev->vbi_dev->num);
2048                 if (-1 != dev->vbi_dev->minor)
2049                         video_unregister_device(dev->vbi_dev);
2050                 else
2051                         video_device_release(dev->vbi_dev);
2052                 dev->vbi_dev = NULL;
2053         }
2054         if (dev->vdev) {
2055                 cx231xx_info("V4L2 device /dev/video%d deregistered\n",
2056                             dev->vdev->num);
2057                 if (-1 != dev->vdev->minor)
2058                         video_unregister_device(dev->vdev);
2059                 else
2060                         video_device_release(dev->vdev);
2061                 dev->vdev = NULL;
2062         }
2063 }
2064
2065 /*
2066  * cx231xx_v4l2_close()
2067  * stops streaming and deallocates all resources allocated by the v4l2
2068  * calls and ioctls
2069  */
2070 static int cx231xx_v4l2_close(struct file *filp)
2071 {
2072         struct cx231xx_fh *fh  = filp->private_data;
2073         struct cx231xx    *dev = fh->dev;
2074
2075         cx231xx_videodbg("users=%d\n", dev->users);
2076
2077     mutex_lock(&dev->lock);
2078
2079         if (res_check(fh))
2080                 res_free(fh);
2081
2082     if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
2083                     videobuf_stop(&fh->vb_vidq);
2084                     videobuf_mmap_free(&fh->vb_vidq);
2085
2086                     /* the device is already disconnect,
2087                        free the remaining resources */
2088                     if (dev->state & DEV_DISCONNECTED) {
2089                             cx231xx_release_resources(dev);
2090                             mutex_unlock(&dev->lock);
2091                             kfree(dev);
2092                             return 0;
2093                     }
2094
2095                     /* do this before setting alternate! */
2096             cx231xx_uninit_vbi_isoc(dev);
2097
2098             /* set alternate 0 */
2099             if( !dev->vbi_or_sliced_cc_mode) {
2100                         cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
2101             } else {
2102                  cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
2103             }
2104
2105         kfree(fh);
2106             dev->users--;
2107             wake_up_interruptible_nr(&dev->open, 1);
2108             mutex_unlock(&dev->lock);
2109             return 0;
2110         }
2111
2112         if (dev->users == 1) {
2113                 videobuf_stop(&fh->vb_vidq);
2114                 videobuf_mmap_free(&fh->vb_vidq);
2115
2116                 /* the device is already disconnect,
2117                    free the remaining resources */
2118                 if (dev->state & DEV_DISCONNECTED) {
2119                         cx231xx_release_resources(dev);
2120                         mutex_unlock(&dev->lock);
2121                         kfree(dev);
2122                         return 0;
2123                 }
2124
2125         /* Save some power by putting tuner to sleep */
2126                 cx231xx_i2c_call_clients(&dev->i2c_bus[1], TUNER_SET_STANDBY, NULL);
2127
2128                 /* do this before setting alternate! */
2129                 cx231xx_uninit_isoc(dev);
2130                 cx231xx_set_mode(dev, CX231XX_SUSPEND);
2131
2132                 /* set alternate 0 */
2133                 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
2134         }
2135         kfree(fh);
2136         dev->users--;
2137         wake_up_interruptible_nr(&dev->open, 1);
2138         mutex_unlock(&dev->lock);
2139         return 0;
2140 }
2141
2142 /*
2143  * cx231xx_v4l2_read()
2144  * will allocate buffers when called for the first time
2145  */
2146 static ssize_t
2147 cx231xx_v4l2_read(struct file *filp, char __user *buf, size_t count,
2148                  loff_t *pos)
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         if ( (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
2159          (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)      ) {
2160                 mutex_lock(&dev->lock);
2161                 rc = res_get(fh);
2162                 mutex_unlock(&dev->lock);
2163
2164                 if (unlikely(rc < 0))
2165                         return rc;
2166
2167                 return videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0,
2168                                         filp->f_flags & O_NONBLOCK);
2169         }
2170         return 0;
2171 }
2172
2173 /*
2174  * cx231xx_v4l2_poll()
2175  * will allocate buffers when called for the first time
2176  */
2177 static unsigned int cx231xx_v4l2_poll(struct file *filp, poll_table * wait)
2178 {
2179         struct cx231xx_fh *fh = filp->private_data;
2180         struct cx231xx *dev = fh->dev;
2181         int rc;
2182
2183         rc = check_dev(dev);
2184         if (rc < 0)
2185                 return rc;
2186
2187         mutex_lock(&dev->lock);
2188         rc = res_get(fh);
2189         mutex_unlock(&dev->lock);
2190
2191         if (unlikely(rc < 0))
2192                 return POLLERR;
2193
2194         if ( (V4L2_BUF_TYPE_VIDEO_CAPTURE == fh->type) ||
2195          (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) )
2196          return videobuf_poll_stream(filp, &fh->vb_vidq, wait);
2197     else
2198                 return POLLERR;
2199 }
2200
2201 /*
2202  * cx231xx_v4l2_mmap()
2203  */
2204 static int cx231xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
2205 {
2206         struct cx231xx_fh *fh    = filp->private_data;
2207         struct cx231xx   *dev   = fh->dev;
2208         int              rc;
2209
2210         rc = check_dev(dev);
2211         if (rc < 0)
2212                 return rc;
2213
2214     mutex_lock(&dev->lock);
2215         rc = res_get(fh);
2216         mutex_unlock(&dev->lock);
2217
2218         if (unlikely(rc < 0))
2219                 return rc;
2220
2221         rc = videobuf_mmap_mapper(&fh->vb_vidq, vma);
2222
2223         cx231xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n",
2224                 (unsigned long)vma->vm_start,
2225                 (unsigned long)vma->vm_end-(unsigned long)vma->vm_start,
2226                 rc);
2227
2228         return rc;
2229 }
2230
2231 static const struct v4l2_file_operations cx231xx_v4l_fops = {
2232         .owner         = THIS_MODULE,
2233         .open          = cx231xx_v4l2_open,
2234         .release       = cx231xx_v4l2_close,
2235         .read          = cx231xx_v4l2_read,
2236         .poll          = cx231xx_v4l2_poll,
2237         .mmap          = cx231xx_v4l2_mmap,
2238         .ioctl         = video_ioctl2,
2239 };
2240
2241 static const struct v4l2_ioctl_ops video_ioctl_ops = {
2242         .vidioc_querycap            = vidioc_querycap,
2243         .vidioc_enum_fmt_vid_cap    = vidioc_enum_fmt_vid_cap,
2244         .vidioc_g_fmt_vid_cap       = vidioc_g_fmt_vid_cap,
2245         .vidioc_try_fmt_vid_cap     = vidioc_try_fmt_vid_cap,
2246         .vidioc_s_fmt_vid_cap       = vidioc_s_fmt_vid_cap,
2247         .vidioc_g_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
2248         .vidioc_try_fmt_vbi_cap     = vidioc_try_fmt_vbi_cap,
2249         .vidioc_s_fmt_vbi_cap       = vidioc_try_fmt_vbi_cap,
2250         .vidioc_g_audio             = vidioc_g_audio,
2251         .vidioc_s_audio             = vidioc_s_audio,
2252         .vidioc_cropcap             = vidioc_cropcap,
2253         .vidioc_g_fmt_sliced_vbi_cap   = vidioc_g_fmt_sliced_vbi_cap,
2254         .vidioc_try_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap,
2255         .vidioc_reqbufs             = vidioc_reqbufs,
2256         .vidioc_querybuf            = vidioc_querybuf,
2257         .vidioc_qbuf                = vidioc_qbuf,
2258         .vidioc_dqbuf               = vidioc_dqbuf,
2259         .vidioc_s_std               = vidioc_s_std,
2260     .vidioc_g_std               = vidioc_g_std,
2261         .vidioc_enum_input          = vidioc_enum_input,
2262         .vidioc_g_input             = vidioc_g_input,
2263         .vidioc_s_input             = vidioc_s_input,
2264         .vidioc_queryctrl           = vidioc_queryctrl,
2265         .vidioc_g_ctrl              = vidioc_g_ctrl,
2266         .vidioc_s_ctrl              = vidioc_s_ctrl,
2267         .vidioc_streamon            = vidioc_streamon,
2268         .vidioc_streamoff           = vidioc_streamoff,
2269         .vidioc_g_tuner             = vidioc_g_tuner,
2270         .vidioc_s_tuner             = vidioc_s_tuner,
2271         .vidioc_g_frequency         = vidioc_g_frequency,
2272         .vidioc_s_frequency         = vidioc_s_frequency,
2273 #ifdef CONFIG_VIDEO_ADV_DEBUG
2274         .vidioc_g_register          = vidioc_g_register,
2275         .vidioc_s_register          = vidioc_s_register,
2276 #endif
2277 #ifdef CONFIG_VIDEO_V4L1_COMPAT
2278         .vidiocgmbuf                = vidiocgmbuf,
2279 #endif
2280 };
2281
2282 static struct video_device cx231xx_vbi_template;
2283
2284 static const struct video_device cx231xx_video_template = {
2285         .fops                       = &cx231xx_v4l_fops,
2286         .release                    = video_device_release,
2287         .ioctl_ops                          = &video_ioctl_ops,
2288         .minor                      = -1,
2289         .tvnorms                    = V4L2_STD_ALL,
2290         .current_norm               = V4L2_STD_PAL,
2291 };
2292
2293 static const struct v4l2_file_operations radio_fops = {
2294         .owner         = THIS_MODULE,
2295         .open          = cx231xx_v4l2_open,
2296         .release       = cx231xx_v4l2_close,
2297         .ioctl         = video_ioctl2,
2298 };
2299
2300 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
2301         .vidioc_querycap      = radio_querycap,
2302         .vidioc_g_tuner       = radio_g_tuner,
2303         .vidioc_enum_input    = radio_enum_input,
2304         .vidioc_g_audio       = radio_g_audio,
2305         .vidioc_s_tuner       = radio_s_tuner,
2306         .vidioc_s_audio       = radio_s_audio,
2307         .vidioc_s_input       = radio_s_input,
2308         .vidioc_queryctrl     = radio_queryctrl,
2309         .vidioc_g_ctrl        = vidioc_g_ctrl,
2310         .vidioc_s_ctrl        = vidioc_s_ctrl,
2311         .vidioc_g_frequency   = vidioc_g_frequency,
2312         .vidioc_s_frequency   = vidioc_s_frequency,
2313 #ifdef CONFIG_VIDEO_ADV_DEBUG
2314         .vidioc_g_register    = vidioc_g_register,
2315         .vidioc_s_register    = vidioc_s_register,
2316 #endif
2317 };
2318
2319 static struct video_device cx231xx_radio_template = {
2320         .name                 = "cx231xx-radio",
2321         .fops                 = &radio_fops,
2322         .ioctl_ops            = &radio_ioctl_ops,
2323         .minor                = -1,
2324 };
2325
2326 /******************************** usb interface ******************************/
2327
2328
2329 static struct video_device *cx231xx_vdev_init(struct cx231xx *dev,
2330                                              const struct video_device *template,
2331                                              const char *type_name)
2332 {
2333         struct video_device *vfd;
2334
2335         vfd = video_device_alloc();
2336         if (NULL == vfd)
2337                 return NULL;
2338         *vfd = *template;
2339         vfd->minor   = -1;
2340         vfd->parent = &dev->udev->dev;
2341         vfd->release = video_device_release;
2342         vfd->debug = video_debug;
2343
2344         snprintf(vfd->name, sizeof(vfd->name), "%s %s",
2345                  dev->name, type_name);
2346
2347         return vfd;
2348 }
2349
2350 int cx231xx_register_analog_devices(struct cx231xx *dev)
2351 {
2352         int ret;
2353
2354     cx231xx_info("%s()\n", __func__);
2355
2356         cx231xx_info("%s: v4l2 driver version %d.%d.%d\n",
2357                 dev->name,
2358                 (CX231XX_VERSION_CODE >> 16) & 0xff,
2359                 (CX231XX_VERSION_CODE >> 8) & 0xff, CX231XX_VERSION_CODE & 0xff);
2360
2361         /* set default norm */
2362         /*dev->norm = cx231xx_video_template.current_norm;*/
2363         dev->width = norm_maxw(dev);
2364         dev->height = norm_maxh(dev);
2365         dev->interlaced = 0;
2366         dev->hscale = 0;
2367         dev->vscale = 0;
2368
2369         /* Analog specific initialization */
2370         dev->format = &format[0];
2371         /* video_mux(dev, dev->video_input); */
2372
2373         /* Audio defaults */
2374         dev->mute = 1;
2375         dev->volume = 0x1f;
2376
2377         /* enable vbi capturing */
2378     /* write code here...  */
2379
2380         /* allocate and fill video video_device struct */
2381         dev->vdev = cx231xx_vdev_init(dev, &cx231xx_video_template, "video");
2382         if (!dev->vdev) {
2383                 cx231xx_errdev("cannot allocate video_device.\n");
2384                 return -ENODEV;
2385         }
2386
2387         /* register v4l2 video video_device */
2388         ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
2389                                        video_nr[dev->devno]);
2390         if (ret) {
2391                 cx231xx_errdev("unable to register video device (error=%i).\n", ret);
2392                 return ret;
2393         }
2394
2395     cx231xx_info("%s/0: registered device video%d [v4l2]\n",
2396                dev->name, dev->vdev->num);
2397
2398     /* Initialize VBI template */
2399         memcpy( &cx231xx_vbi_template, &cx231xx_video_template,
2400                 sizeof(cx231xx_vbi_template) );
2401         strcpy(cx231xx_vbi_template.name,"cx231xx-vbi");
2402
2403
2404         /* Allocate and fill vbi video_device struct */
2405         dev->vbi_dev = cx231xx_vdev_init(dev, &cx231xx_vbi_template, "vbi");
2406
2407         /* register v4l2 vbi video_device */
2408         ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
2409                                         vbi_nr[dev->devno]);
2410         if (ret < 0) {
2411                 cx231xx_errdev("unable to register vbi device\n");
2412                 return ret;
2413         }
2414
2415     cx231xx_info("%s/0: registered device vbi%d\n",
2416                dev->name, dev->vbi_dev->num);
2417
2418         if (cx231xx_boards[dev->model].radio.type == CX231XX_RADIO) {
2419                 dev->radio_dev = cx231xx_vdev_init(dev, &cx231xx_radio_template, "radio");
2420                 if (!dev->radio_dev) {
2421                         cx231xx_errdev("cannot allocate video_device.\n");
2422                         return -ENODEV;
2423                 }
2424                 ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
2425                                             radio_nr[dev->devno]);
2426                 if (ret < 0) {
2427                         cx231xx_errdev("can't register radio device\n");
2428                         return ret;
2429                 }
2430                 cx231xx_info("Registered radio device as /dev/radio%d\n",
2431                             dev->radio_dev->num);
2432         }
2433
2434         cx231xx_info("V4L2 device registered as /dev/video%d and /dev/vbi%d\n",
2435                                 dev->vdev->num, dev->vbi_dev->num);
2436
2437         return 0;
2438 }
2439
2440