linux/drivers/media/video/cx231xx/cx231xx-video.c
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   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/version.h>
  33#include <linux/mm.h>
  34#include <linux/mutex.h>
  35#include <linux/slab.h>
  36
  37#include <media/v4l2-common.h>
  38#include <media/v4l2-ioctl.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_CODE            KERNEL_VERSION(0, 0, 1)
  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
  58static unsigned int isoc_debug;
  59module_param(isoc_debug, int, 0644);
  60MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
  61
  62#define cx231xx_isocdbg(fmt, arg...) \
  63do {\
  64        if (isoc_debug) { \
  65                printk(KERN_INFO "%s %s :"fmt, \
  66                         dev->name, __func__ , ##arg); \
  67        } \
  68  } while (0)
  69
  70MODULE_AUTHOR(DRIVER_AUTHOR);
  71MODULE_DESCRIPTION(DRIVER_DESC);
  72MODULE_LICENSE("GPL");
  73
  74static unsigned int card[]     = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
  75static unsigned int video_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
  76static unsigned int vbi_nr[]   = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
  77static unsigned int radio_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
  78
  79module_param_array(card, int, NULL, 0444);
  80module_param_array(video_nr, int, NULL, 0444);
  81module_param_array(vbi_nr, int, NULL, 0444);
  82module_param_array(radio_nr, int, NULL, 0444);
  83
  84MODULE_PARM_DESC(card, "card type");
  85MODULE_PARM_DESC(video_nr, "video device numbers");
  86MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
  87MODULE_PARM_DESC(radio_nr, "radio device numbers");
  88
  89static unsigned int video_debug;
  90module_param(video_debug, int, 0644);
  91MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
  92
  93/* supported video standards */
  94static struct cx231xx_fmt format[] = {
  95        {
  96         .name = "16bpp YUY2, 4:2:2, packed",
  97         .fourcc = V4L2_PIX_FMT_YUYV,
  98         .depth = 16,
  99         .reg = 0,
 100         },
 101};
 102
 103/* supported controls */
 104/* Common to all boards */
 105
 106/* ------------------------------------------------------------------- */
 107
 108static const struct v4l2_queryctrl no_ctl = {
 109        .name = "42",
 110        .flags = V4L2_CTRL_FLAG_DISABLED,
 111};
 112
 113static struct cx231xx_ctrl cx231xx_ctls[] = {
 114        /* --- video --- */
 115        {
 116                .v = {
 117                        .id = V4L2_CID_BRIGHTNESS,
 118                        .name = "Brightness",
 119                        .minimum = 0x00,
 120                        .maximum = 0xff,
 121                        .step = 1,
 122                        .default_value = 0x7f,
 123                        .type = V4L2_CTRL_TYPE_INTEGER,
 124                },
 125                .off = 128,
 126                .reg = LUMA_CTRL,
 127                .mask = 0x00ff,
 128                .shift = 0,
 129        }, {
 130                .v = {
 131                        .id = V4L2_CID_CONTRAST,
 132                        .name = "Contrast",
 133                        .minimum = 0,
 134                        .maximum = 0xff,
 135                        .step = 1,
 136                        .default_value = 0x3f,
 137                        .type = V4L2_CTRL_TYPE_INTEGER,
 138                },
 139                .off = 0,
 140                .reg = LUMA_CTRL,
 141                .mask = 0xff00,
 142                .shift = 8,
 143        }, {
 144                .v = {
 145                        .id = V4L2_CID_HUE,
 146                        .name = "Hue",
 147                        .minimum = 0,
 148                        .maximum = 0xff,
 149                        .step = 1,
 150                        .default_value = 0x7f,
 151                        .type = V4L2_CTRL_TYPE_INTEGER,
 152                },
 153                .off = 128,
 154                .reg = CHROMA_CTRL,
 155                .mask = 0xff0000,
 156                .shift = 16,
 157        }, {
 158        /* strictly, this only describes only U saturation.
 159        * V saturation is handled specially through code.
 160        */
 161                .v = {
 162                        .id = V4L2_CID_SATURATION,
 163                        .name = "Saturation",
 164                        .minimum = 0,
 165                        .maximum = 0xff,
 166                        .step = 1,
 167                        .default_value = 0x7f,
 168                        .type = V4L2_CTRL_TYPE_INTEGER,
 169                },
 170                .off = 0,
 171                .reg = CHROMA_CTRL,
 172                .mask = 0x00ff,
 173                .shift = 0,
 174        }, {
 175                /* --- audio --- */
 176                .v = {
 177                        .id = V4L2_CID_AUDIO_MUTE,
 178                        .name = "Mute",
 179                        .minimum = 0,
 180                        .maximum = 1,
 181                        .default_value = 1,
 182                        .type = V4L2_CTRL_TYPE_BOOLEAN,
 183                },
 184                .reg = PATH1_CTL1,
 185                .mask = (0x1f << 24),
 186                .shift = 24,
 187        }, {
 188                .v = {
 189                        .id = V4L2_CID_AUDIO_VOLUME,
 190                        .name = "Volume",
 191                        .minimum = 0,
 192                        .maximum = 0x3f,
 193                        .step = 1,
 194                        .default_value = 0x3f,
 195                        .type = V4L2_CTRL_TYPE_INTEGER,
 196                },
 197                .reg = PATH1_VOL_CTL,
 198                .mask = 0xff,
 199                .shift = 0,
 200        }
 201};
 202static const int CX231XX_CTLS = ARRAY_SIZE(cx231xx_ctls);
 203
 204static const u32 cx231xx_user_ctrls[] = {
 205        V4L2_CID_USER_CLASS,
 206        V4L2_CID_BRIGHTNESS,
 207        V4L2_CID_CONTRAST,
 208        V4L2_CID_SATURATION,
 209        V4L2_CID_HUE,
 210        V4L2_CID_AUDIO_VOLUME,
 211#if 0
 212        V4L2_CID_AUDIO_BALANCE,
 213#endif
 214        V4L2_CID_AUDIO_MUTE,
 215        0
 216};
 217
 218static const u32 *ctrl_classes[] = {
 219        cx231xx_user_ctrls,
 220        NULL
 221};
 222
 223/* ------------------------------------------------------------------
 224        Video buffer and parser functions
 225   ------------------------------------------------------------------*/
 226
 227/*
 228 * Announces that a buffer were filled and request the next
 229 */
 230static inline void buffer_filled(struct cx231xx *dev,
 231                                 struct cx231xx_dmaqueue *dma_q,
 232                                 struct cx231xx_buffer *buf)
 233{
 234        /* Advice that buffer was filled */
 235        cx231xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
 236        buf->vb.state = VIDEOBUF_DONE;
 237        buf->vb.field_count++;
 238        do_gettimeofday(&buf->vb.ts);
 239
 240        if (dev->USE_ISO)
 241                dev->video_mode.isoc_ctl.buf = NULL;
 242        else
 243                dev->video_mode.bulk_ctl.buf = NULL;
 244
 245        list_del(&buf->vb.queue);
 246        wake_up(&buf->vb.done);
 247}
 248
 249static inline void print_err_status(struct cx231xx *dev, int packet, int status)
 250{
 251        char *errmsg = "Unknown";
 252
 253        switch (status) {
 254        case -ENOENT:
 255                errmsg = "unlinked synchronuously";
 256                break;
 257        case -ECONNRESET:
 258                errmsg = "unlinked asynchronuously";
 259                break;
 260        case -ENOSR:
 261                errmsg = "Buffer error (overrun)";
 262                break;
 263        case -EPIPE:
 264                errmsg = "Stalled (device not responding)";
 265                break;
 266        case -EOVERFLOW:
 267                errmsg = "Babble (bad cable?)";
 268                break;
 269        case -EPROTO:
 270                errmsg = "Bit-stuff error (bad cable?)";
 271                break;
 272        case -EILSEQ:
 273                errmsg = "CRC/Timeout (could be anything)";
 274                break;
 275        case -ETIME:
 276                errmsg = "Device does not respond";
 277                break;
 278        }
 279        if (packet < 0) {
 280                cx231xx_isocdbg("URB status %d [%s].\n", status, errmsg);
 281        } else {
 282                cx231xx_isocdbg("URB packet %d, status %d [%s].\n",
 283                                packet, status, errmsg);
 284        }
 285}
 286
 287/*
 288 * video-buf generic routine to get the next available buffer
 289 */
 290static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q,
 291                                struct cx231xx_buffer **buf)
 292{
 293        struct cx231xx_video_mode *vmode =
 294            container_of(dma_q, struct cx231xx_video_mode, vidq);
 295        struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 296
 297        char *outp;
 298
 299        if (list_empty(&dma_q->active)) {
 300                cx231xx_isocdbg("No active queue to serve\n");
 301                if (dev->USE_ISO)
 302                        dev->video_mode.isoc_ctl.buf = NULL;
 303                else
 304                        dev->video_mode.bulk_ctl.buf = NULL;
 305                *buf = NULL;
 306                return;
 307        }
 308
 309        /* Get the next buffer */
 310        *buf = list_entry(dma_q->active.next, struct cx231xx_buffer, vb.queue);
 311
 312        /* Cleans up buffer - Usefull for testing for frame/URB loss */
 313        outp = videobuf_to_vmalloc(&(*buf)->vb);
 314        memset(outp, 0, (*buf)->vb.size);
 315
 316        if (dev->USE_ISO)
 317                dev->video_mode.isoc_ctl.buf = *buf;
 318        else
 319                dev->video_mode.bulk_ctl.buf = *buf;
 320
 321        return;
 322}
 323
 324/*
 325 * Controls the isoc copy of each urb packet
 326 */
 327static inline int cx231xx_isoc_copy(struct cx231xx *dev, struct urb *urb)
 328{
 329        struct cx231xx_buffer *buf;
 330        struct cx231xx_dmaqueue *dma_q = urb->context;
 331        unsigned char *outp = NULL;
 332        int i, rc = 1;
 333        unsigned char *p_buffer;
 334        u32 bytes_parsed = 0, buffer_size = 0;
 335        u8 sav_eav = 0;
 336
 337        if (!dev)
 338                return 0;
 339
 340        if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
 341                return 0;
 342
 343        if (urb->status < 0) {
 344                print_err_status(dev, -1, urb->status);
 345                if (urb->status == -ENOENT)
 346                        return 0;
 347        }
 348
 349        buf = dev->video_mode.isoc_ctl.buf;
 350        if (buf != NULL)
 351                outp = videobuf_to_vmalloc(&buf->vb);
 352
 353        for (i = 0; i < urb->number_of_packets; i++) {
 354                int status = urb->iso_frame_desc[i].status;
 355
 356                if (status < 0) {
 357                        print_err_status(dev, i, status);
 358                        if (urb->iso_frame_desc[i].status != -EPROTO)
 359                                continue;
 360                }
 361
 362                if (urb->iso_frame_desc[i].actual_length <= 0) {
 363                        /* cx231xx_isocdbg("packet %d is empty",i); - spammy */
 364                        continue;
 365                }
 366                if (urb->iso_frame_desc[i].actual_length >
 367                    dev->video_mode.max_pkt_size) {
 368                        cx231xx_isocdbg("packet bigger than packet size");
 369                        continue;
 370                }
 371
 372                /*  get buffer pointer and length */
 373                p_buffer = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
 374                buffer_size = urb->iso_frame_desc[i].actual_length;
 375                bytes_parsed = 0;
 376
 377                if (dma_q->is_partial_line) {
 378                        /* Handle the case of a partial line */
 379                        sav_eav = dma_q->last_sav;
 380                } else {
 381                        /* Check for a SAV/EAV overlapping
 382                                the buffer boundary */
 383                        sav_eav =
 384                            cx231xx_find_boundary_SAV_EAV(p_buffer,
 385                                                          dma_q->partial_buf,
 386                                                          &bytes_parsed);
 387                }
 388
 389                sav_eav &= 0xF0;
 390                /* Get the first line if we have some portion of an SAV/EAV from
 391                   the last buffer or a partial line  */
 392                if (sav_eav) {
 393                        bytes_parsed += cx231xx_get_video_line(dev, dma_q,
 394                                sav_eav,        /* SAV/EAV */
 395                                p_buffer + bytes_parsed,        /* p_buffer */
 396                                buffer_size - bytes_parsed);/* buf size */
 397                }
 398
 399                /* Now parse data that is completely in this buffer */
 400                /* dma_q->is_partial_line = 0;  */
 401
 402                while (bytes_parsed < buffer_size) {
 403                        u32 bytes_used = 0;
 404
 405                        sav_eav = cx231xx_find_next_SAV_EAV(
 406                                p_buffer + bytes_parsed,        /* p_buffer */
 407                                buffer_size - bytes_parsed,     /* buf size */
 408                                &bytes_used);/* bytes used to get SAV/EAV */
 409
 410                        bytes_parsed += bytes_used;
 411
 412                        sav_eav &= 0xF0;
 413                        if (sav_eav && (bytes_parsed < buffer_size)) {
 414                                bytes_parsed += cx231xx_get_video_line(dev,
 415                                        dma_q, sav_eav, /* SAV/EAV */
 416                                        p_buffer + bytes_parsed,/* p_buffer */
 417                                        buffer_size - bytes_parsed);/*buf size*/
 418                        }
 419                }
 420
 421                /* Save the last four bytes of the buffer so we can check the
 422                   buffer boundary condition next time */
 423                memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
 424                bytes_parsed = 0;
 425
 426        }
 427        return rc;
 428}
 429
 430static inline int cx231xx_bulk_copy(struct cx231xx *dev, struct urb *urb)
 431{
 432        struct cx231xx_buffer *buf;
 433        struct cx231xx_dmaqueue *dma_q = urb->context;
 434        unsigned char *outp = NULL;
 435        int rc = 1;
 436        unsigned char *p_buffer;
 437        u32 bytes_parsed = 0, buffer_size = 0;
 438        u8 sav_eav = 0;
 439
 440        if (!dev)
 441                return 0;
 442
 443        if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
 444                return 0;
 445
 446        if (urb->status < 0) {
 447                print_err_status(dev, -1, urb->status);
 448                if (urb->status == -ENOENT)
 449                        return 0;
 450        }
 451
 452        buf = dev->video_mode.bulk_ctl.buf;
 453        if (buf != NULL)
 454                outp = videobuf_to_vmalloc(&buf->vb);
 455
 456        if (1) {
 457
 458                /*  get buffer pointer and length */
 459                p_buffer = urb->transfer_buffer;
 460                buffer_size = urb->actual_length;
 461                bytes_parsed = 0;
 462
 463                if (dma_q->is_partial_line) {
 464                        /* Handle the case of a partial line */
 465                        sav_eav = dma_q->last_sav;
 466                } else {
 467                        /* Check for a SAV/EAV overlapping
 468                                the buffer boundary */
 469                        sav_eav =
 470                            cx231xx_find_boundary_SAV_EAV(p_buffer,
 471                                                          dma_q->partial_buf,
 472                                                          &bytes_parsed);
 473                }
 474
 475                sav_eav &= 0xF0;
 476                /* Get the first line if we have some portion of an SAV/EAV from
 477                   the last buffer or a partial line  */
 478                if (sav_eav) {
 479                        bytes_parsed += cx231xx_get_video_line(dev, dma_q,
 480                                sav_eav,        /* SAV/EAV */
 481                                p_buffer + bytes_parsed,        /* p_buffer */
 482                                buffer_size - bytes_parsed);/* buf size */
 483                }
 484
 485                /* Now parse data that is completely in this buffer */
 486                /* dma_q->is_partial_line = 0;  */
 487
 488                while (bytes_parsed < buffer_size) {
 489                        u32 bytes_used = 0;
 490
 491                        sav_eav = cx231xx_find_next_SAV_EAV(
 492                                p_buffer + bytes_parsed,        /* p_buffer */
 493                                buffer_size - bytes_parsed,     /* buf size */
 494                                &bytes_used);/* bytes used to get SAV/EAV */
 495
 496                        bytes_parsed += bytes_used;
 497
 498                        sav_eav &= 0xF0;
 499                        if (sav_eav && (bytes_parsed < buffer_size)) {
 500                                bytes_parsed += cx231xx_get_video_line(dev,
 501                                        dma_q, sav_eav, /* SAV/EAV */
 502                                        p_buffer + bytes_parsed,/* p_buffer */
 503                                        buffer_size - bytes_parsed);/*buf size*/
 504                        }
 505                }
 506
 507                /* Save the last four bytes of the buffer so we can check the
 508                   buffer boundary condition next time */
 509                memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
 510                bytes_parsed = 0;
 511
 512        }
 513        return rc;
 514}
 515
 516
 517u8 cx231xx_find_boundary_SAV_EAV(u8 *p_buffer, u8 *partial_buf,
 518                                 u32 *p_bytes_used)
 519{
 520        u32 bytes_used;
 521        u8 boundary_bytes[8];
 522        u8 sav_eav = 0;
 523
 524        *p_bytes_used = 0;
 525
 526        /* Create an array of the last 4 bytes of the last buffer and the first
 527           4 bytes of the current buffer. */
 528
 529        memcpy(boundary_bytes, partial_buf, 4);
 530        memcpy(boundary_bytes + 4, p_buffer, 4);
 531
 532        /* Check for the SAV/EAV in the boundary buffer */
 533        sav_eav = cx231xx_find_next_SAV_EAV((u8 *)&boundary_bytes, 8,
 534                                            &bytes_used);
 535
 536        if (sav_eav) {
 537                /* found a boundary SAV/EAV.  Updates the bytes used to reflect
 538                   only those used in the new buffer */
 539                *p_bytes_used = bytes_used - 4;
 540        }
 541
 542        return sav_eav;
 543}
 544
 545u8 cx231xx_find_next_SAV_EAV(u8 *p_buffer, u32 buffer_size, u32 *p_bytes_used)
 546{
 547        u32 i;
 548        u8 sav_eav = 0;
 549
 550        /*
 551         * Don't search if the buffer size is less than 4.  It causes a page
 552         * fault since buffer_size - 4 evaluates to a large number in that
 553         * case.
 554         */
 555        if (buffer_size < 4) {
 556                *p_bytes_used = buffer_size;
 557                return 0;
 558        }
 559
 560        for (i = 0; i < (buffer_size - 3); i++) {
 561
 562                if ((p_buffer[i] == 0xFF) &&
 563                    (p_buffer[i + 1] == 0x00) && (p_buffer[i + 2] == 0x00)) {
 564
 565                        *p_bytes_used = i + 4;
 566                        sav_eav = p_buffer[i + 3];
 567                        return sav_eav;
 568                }
 569        }
 570
 571        *p_bytes_used = buffer_size;
 572        return 0;
 573}
 574
 575u32 cx231xx_get_video_line(struct cx231xx *dev,
 576                           struct cx231xx_dmaqueue *dma_q, u8 sav_eav,
 577                           u8 *p_buffer, u32 buffer_size)
 578{
 579        u32 bytes_copied = 0;
 580        int current_field = -1;
 581
 582        switch (sav_eav) {
 583        case SAV_ACTIVE_VIDEO_FIELD1:
 584                /* looking for skipped line which occurred in PAL 720x480 mode.
 585                   In this case, there will be no active data contained
 586                   between the SAV and EAV */
 587                if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
 588                    (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
 589                    ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
 590                     (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
 591                     (p_buffer[3] == EAV_VBLANK_FIELD1) ||
 592                     (p_buffer[3] == EAV_VBLANK_FIELD2)))
 593                        return bytes_copied;
 594                current_field = 1;
 595                break;
 596
 597        case SAV_ACTIVE_VIDEO_FIELD2:
 598                /* looking for skipped line which occurred in PAL 720x480 mode.
 599                   In this case, there will be no active data contained between
 600                   the SAV and EAV */
 601                if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
 602                    (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
 603                    ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
 604                     (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
 605                     (p_buffer[3] == EAV_VBLANK_FIELD1)       ||
 606                     (p_buffer[3] == EAV_VBLANK_FIELD2)))
 607                        return bytes_copied;
 608                current_field = 2;
 609                break;
 610        }
 611
 612        dma_q->last_sav = sav_eav;
 613
 614        bytes_copied = cx231xx_copy_video_line(dev, dma_q, p_buffer,
 615                                               buffer_size, current_field);
 616
 617        return bytes_copied;
 618}
 619
 620u32 cx231xx_copy_video_line(struct cx231xx *dev,
 621                            struct cx231xx_dmaqueue *dma_q, u8 *p_line,
 622                            u32 length, int field_number)
 623{
 624        u32 bytes_to_copy;
 625        struct cx231xx_buffer *buf;
 626        u32 _line_size = dev->width * 2;
 627
 628        if (dma_q->current_field != field_number)
 629                cx231xx_reset_video_buffer(dev, dma_q);
 630
 631        /* get the buffer pointer */
 632        if (dev->USE_ISO)
 633                buf = dev->video_mode.isoc_ctl.buf;
 634        else
 635                buf = dev->video_mode.bulk_ctl.buf;
 636
 637        /* Remember the field number for next time */
 638        dma_q->current_field = field_number;
 639
 640        bytes_to_copy = dma_q->bytes_left_in_line;
 641        if (bytes_to_copy > length)
 642                bytes_to_copy = length;
 643
 644        if (dma_q->lines_completed >= dma_q->lines_per_field) {
 645                dma_q->bytes_left_in_line -= bytes_to_copy;
 646                dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ?
 647                                          0 : 1;
 648                return 0;
 649        }
 650
 651        dma_q->is_partial_line = 1;
 652
 653        /* If we don't have a buffer, just return the number of bytes we would
 654           have copied if we had a buffer. */
 655        if (!buf) {
 656                dma_q->bytes_left_in_line -= bytes_to_copy;
 657                dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0)
 658                                         ? 0 : 1;
 659                return bytes_to_copy;
 660        }
 661
 662        /* copy the data to video buffer */
 663        cx231xx_do_copy(dev, dma_q, p_line, bytes_to_copy);
 664
 665        dma_q->pos += bytes_to_copy;
 666        dma_q->bytes_left_in_line -= bytes_to_copy;
 667
 668        if (dma_q->bytes_left_in_line == 0) {
 669                dma_q->bytes_left_in_line = _line_size;
 670                dma_q->lines_completed++;
 671                dma_q->is_partial_line = 0;
 672
 673                if (cx231xx_is_buffer_done(dev, dma_q) && buf) {
 674                        buffer_filled(dev, dma_q, buf);
 675
 676                        dma_q->pos = 0;
 677                        buf = NULL;
 678                        dma_q->lines_completed = 0;
 679                }
 680        }
 681
 682        return bytes_to_copy;
 683}
 684
 685void cx231xx_reset_video_buffer(struct cx231xx *dev,
 686                                struct cx231xx_dmaqueue *dma_q)
 687{
 688        struct cx231xx_buffer *buf;
 689
 690        /* handle the switch from field 1 to field 2 */
 691        if (dma_q->current_field == 1) {
 692                if (dma_q->lines_completed >= dma_q->lines_per_field)
 693                        dma_q->field1_done = 1;
 694                else
 695                        dma_q->field1_done = 0;
 696        }
 697
 698        if (dev->USE_ISO)
 699                buf = dev->video_mode.isoc_ctl.buf;
 700        else
 701                buf = dev->video_mode.bulk_ctl.buf;
 702
 703        if (buf == NULL) {
 704                u8 *outp = NULL;
 705                /* first try to get the buffer */
 706                get_next_buf(dma_q, &buf);
 707
 708                if (buf)
 709                        outp = videobuf_to_vmalloc(&buf->vb);
 710
 711                dma_q->pos = 0;
 712                dma_q->field1_done = 0;
 713                dma_q->current_field = -1;
 714        }
 715
 716        /* reset the counters */
 717        dma_q->bytes_left_in_line = dev->width << 1;
 718        dma_q->lines_completed = 0;
 719}
 720
 721int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
 722                    u8 *p_buffer, u32 bytes_to_copy)
 723{
 724        u8 *p_out_buffer = NULL;
 725        u32 current_line_bytes_copied = 0;
 726        struct cx231xx_buffer *buf;
 727        u32 _line_size = dev->width << 1;
 728        void *startwrite;
 729        int offset, lencopy;
 730
 731        if (dev->USE_ISO)
 732                buf = dev->video_mode.isoc_ctl.buf;
 733        else
 734                buf = dev->video_mode.bulk_ctl.buf;
 735
 736        if (buf == NULL)
 737                return -1;
 738
 739        p_out_buffer = videobuf_to_vmalloc(&buf->vb);
 740
 741        current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line;
 742
 743        /* Offset field 2 one line from the top of the buffer */
 744        offset = (dma_q->current_field == 1) ? 0 : _line_size;
 745
 746        /* Offset for field 2 */
 747        startwrite = p_out_buffer + offset;
 748
 749        /* lines already completed in the current field */
 750        startwrite += (dma_q->lines_completed * _line_size * 2);
 751
 752        /* bytes already completed in the current line */
 753        startwrite += current_line_bytes_copied;
 754
 755        lencopy = dma_q->bytes_left_in_line > bytes_to_copy ?
 756                  bytes_to_copy : dma_q->bytes_left_in_line;
 757
 758        if ((u8 *)(startwrite + lencopy) > (u8 *)(p_out_buffer + buf->vb.size))
 759                return 0;
 760
 761        /* The below copies the UYVY data straight into video buffer */
 762        cx231xx_swab((u16 *) p_buffer, (u16 *) startwrite, (u16) lencopy);
 763
 764        return 0;
 765}
 766
 767void cx231xx_swab(u16 *from, u16 *to, u16 len)
 768{
 769        u16 i;
 770
 771        if (len <= 0)
 772                return;
 773
 774        for (i = 0; i < len / 2; i++)
 775                to[i] = (from[i] << 8) | (from[i] >> 8);
 776}
 777
 778u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q)
 779{
 780        u8 buffer_complete = 0;
 781
 782        /* Dual field stream */
 783        buffer_complete = ((dma_q->current_field == 2) &&
 784                           (dma_q->lines_completed >= dma_q->lines_per_field) &&
 785                            dma_q->field1_done);
 786
 787        return buffer_complete;
 788}
 789
 790/* ------------------------------------------------------------------
 791        Videobuf operations
 792   ------------------------------------------------------------------*/
 793
 794static int
 795buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
 796{
 797        struct cx231xx_fh *fh = vq->priv_data;
 798        struct cx231xx *dev = fh->dev;
 799
 800        *size = (fh->dev->width * fh->dev->height * dev->format->depth + 7)>>3;
 801        if (0 == *count)
 802                *count = CX231XX_DEF_BUF;
 803
 804        if (*count < CX231XX_MIN_BUF)
 805                *count = CX231XX_MIN_BUF;
 806
 807        return 0;
 808}
 809
 810/* This is called *without* dev->slock held; please keep it that way */
 811static void free_buffer(struct videobuf_queue *vq, struct cx231xx_buffer *buf)
 812{
 813        struct cx231xx_fh *fh = vq->priv_data;
 814        struct cx231xx *dev = fh->dev;
 815        unsigned long flags = 0;
 816
 817        if (in_interrupt())
 818                BUG();
 819
 820        /* We used to wait for the buffer to finish here, but this didn't work
 821           because, as we were keeping the state as VIDEOBUF_QUEUED,
 822           videobuf_queue_cancel marked it as finished for us.
 823           (Also, it could wedge forever if the hardware was misconfigured.)
 824
 825           This should be safe; by the time we get here, the buffer isn't
 826           queued anymore. If we ever start marking the buffers as
 827           VIDEOBUF_ACTIVE, it won't be, though.
 828         */
 829        spin_lock_irqsave(&dev->video_mode.slock, flags);
 830        if (dev->USE_ISO) {
 831                if (dev->video_mode.isoc_ctl.buf == buf)
 832                        dev->video_mode.isoc_ctl.buf = NULL;
 833        } else {
 834                if (dev->video_mode.bulk_ctl.buf == buf)
 835                        dev->video_mode.bulk_ctl.buf = NULL;
 836        }
 837        spin_unlock_irqrestore(&dev->video_mode.slock, flags);
 838
 839        videobuf_vmalloc_free(&buf->vb);
 840        buf->vb.state = VIDEOBUF_NEEDS_INIT;
 841}
 842
 843static int
 844buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
 845               enum v4l2_field field)
 846{
 847        struct cx231xx_fh *fh = vq->priv_data;
 848        struct cx231xx_buffer *buf =
 849            container_of(vb, struct cx231xx_buffer, vb);
 850        struct cx231xx *dev = fh->dev;
 851        int rc = 0, urb_init = 0;
 852
 853        /* The only currently supported format is 16 bits/pixel */
 854        buf->vb.size = (fh->dev->width * fh->dev->height * dev->format->depth
 855                        + 7) >> 3;
 856        if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
 857                return -EINVAL;
 858
 859        buf->vb.width = dev->width;
 860        buf->vb.height = dev->height;
 861        buf->vb.field = field;
 862
 863        if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
 864                rc = videobuf_iolock(vq, &buf->vb, NULL);
 865                if (rc < 0)
 866                        goto fail;
 867        }
 868
 869        if (dev->USE_ISO) {
 870                if (!dev->video_mode.isoc_ctl.num_bufs)
 871                        urb_init = 1;
 872        } else {
 873                if (!dev->video_mode.bulk_ctl.num_bufs)
 874                        urb_init = 1;
 875        }
 876        /*cx231xx_info("urb_init=%d dev->video_mode.max_pkt_size=%d\n",
 877                urb_init, dev->video_mode.max_pkt_size);*/
 878        if (urb_init) {
 879                dev->mode_tv = 0;
 880                if (dev->USE_ISO)
 881                        rc = cx231xx_init_isoc(dev, CX231XX_NUM_PACKETS,
 882                                       CX231XX_NUM_BUFS,
 883                                       dev->video_mode.max_pkt_size,
 884                                       cx231xx_isoc_copy);
 885                else
 886                        rc = cx231xx_init_bulk(dev, CX231XX_NUM_PACKETS,
 887                                       CX231XX_NUM_BUFS,
 888                                       dev->video_mode.max_pkt_size,
 889                                       cx231xx_bulk_copy);
 890                if (rc < 0)
 891                        goto fail;
 892        }
 893
 894        buf->vb.state = VIDEOBUF_PREPARED;
 895        return 0;
 896
 897fail:
 898        free_buffer(vq, buf);
 899        return rc;
 900}
 901
 902static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 903{
 904        struct cx231xx_buffer *buf =
 905            container_of(vb, struct cx231xx_buffer, vb);
 906        struct cx231xx_fh *fh = vq->priv_data;
 907        struct cx231xx *dev = fh->dev;
 908        struct cx231xx_dmaqueue *vidq = &dev->video_mode.vidq;
 909
 910        buf->vb.state = VIDEOBUF_QUEUED;
 911        list_add_tail(&buf->vb.queue, &vidq->active);
 912
 913}
 914
 915static void buffer_release(struct videobuf_queue *vq,
 916                           struct videobuf_buffer *vb)
 917{
 918        struct cx231xx_buffer *buf =
 919            container_of(vb, struct cx231xx_buffer, vb);
 920        struct cx231xx_fh *fh = vq->priv_data;
 921        struct cx231xx *dev = (struct cx231xx *)fh->dev;
 922
 923        cx231xx_isocdbg("cx231xx: called buffer_release\n");
 924
 925        free_buffer(vq, buf);
 926}
 927
 928static struct videobuf_queue_ops cx231xx_video_qops = {
 929        .buf_setup = buffer_setup,
 930        .buf_prepare = buffer_prepare,
 931        .buf_queue = buffer_queue,
 932        .buf_release = buffer_release,
 933};
 934
 935/*********************  v4l2 interface  **************************************/
 936
 937void video_mux(struct cx231xx *dev, int index)
 938{
 939        dev->video_input = index;
 940        dev->ctl_ainput = INPUT(index)->amux;
 941
 942        cx231xx_set_video_input_mux(dev, index);
 943
 944        cx25840_call(dev, video, s_routing, INPUT(index)->vmux, 0, 0);
 945
 946        cx231xx_set_audio_input(dev, dev->ctl_ainput);
 947
 948        cx231xx_info("video_mux : %d\n", index);
 949
 950        /* do mode control overrides if required */
 951        cx231xx_do_mode_ctrl_overrides(dev);
 952}
 953
 954/* Usage lock check functions */
 955static int res_get(struct cx231xx_fh *fh)
 956{
 957        struct cx231xx *dev = fh->dev;
 958        int rc = 0;
 959
 960        /* This instance already has stream_on */
 961        if (fh->stream_on)
 962                return rc;
 963
 964        if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 965                if (dev->stream_on)
 966                        return -EBUSY;
 967                dev->stream_on = 1;
 968        } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
 969                if (dev->vbi_stream_on)
 970                        return -EBUSY;
 971                dev->vbi_stream_on = 1;
 972        } else
 973                return -EINVAL;
 974
 975        fh->stream_on = 1;
 976
 977        return rc;
 978}
 979
 980static int res_check(struct cx231xx_fh *fh)
 981{
 982        return fh->stream_on;
 983}
 984
 985static void res_free(struct cx231xx_fh *fh)
 986{
 987        struct cx231xx *dev = fh->dev;
 988
 989        fh->stream_on = 0;
 990
 991        if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 992                dev->stream_on = 0;
 993        if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
 994                dev->vbi_stream_on = 0;
 995}
 996
 997static int check_dev(struct cx231xx *dev)
 998{
 999        if (dev->state & DEV_DISCONNECTED) {
1000                cx231xx_errdev("v4l2 ioctl: device not present\n");
1001                return -ENODEV;
1002        }
1003
1004        if (dev->state & DEV_MISCONFIGURED) {
1005                cx231xx_errdev("v4l2 ioctl: device is misconfigured; "
1006                               "close and open it again\n");
1007                return -EIO;
1008        }
1009        return 0;
1010}
1011
1012/* ------------------------------------------------------------------
1013        IOCTL vidioc handling
1014   ------------------------------------------------------------------*/
1015
1016static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1017                                struct v4l2_format *f)
1018{
1019        struct cx231xx_fh *fh = priv;
1020        struct cx231xx *dev = fh->dev;
1021
1022        f->fmt.pix.width = dev->width;
1023        f->fmt.pix.height = dev->height;
1024        f->fmt.pix.pixelformat = dev->format->fourcc;
1025        f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3;
1026        f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height;
1027        f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1028
1029        f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1030
1031        return 0;
1032}
1033
1034static struct cx231xx_fmt *format_by_fourcc(unsigned int fourcc)
1035{
1036        unsigned int i;
1037
1038        for (i = 0; i < ARRAY_SIZE(format); i++)
1039                if (format[i].fourcc == fourcc)
1040                        return &format[i];
1041
1042        return NULL;
1043}
1044
1045static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1046                                  struct v4l2_format *f)
1047{
1048        struct cx231xx_fh *fh = priv;
1049        struct cx231xx *dev = fh->dev;
1050        unsigned int width = f->fmt.pix.width;
1051        unsigned int height = f->fmt.pix.height;
1052        unsigned int maxw = norm_maxw(dev);
1053        unsigned int maxh = norm_maxh(dev);
1054        struct cx231xx_fmt *fmt;
1055
1056        fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1057        if (!fmt) {
1058                cx231xx_videodbg("Fourcc format (%08x) invalid.\n",
1059                                 f->fmt.pix.pixelformat);
1060                return -EINVAL;
1061        }
1062
1063        /* width must even because of the YUYV format
1064           height must be even because of interlacing */
1065        v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh, 1, 0);
1066
1067        f->fmt.pix.width = width;
1068        f->fmt.pix.height = height;
1069        f->fmt.pix.pixelformat = fmt->fourcc;
1070        f->fmt.pix.bytesperline = (dev->width * fmt->depth + 7) >> 3;
1071        f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height;
1072        f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1073        f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1074
1075        return 0;
1076}
1077
1078static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1079                                struct v4l2_format *f)
1080{
1081        struct cx231xx_fh *fh = priv;
1082        struct cx231xx *dev = fh->dev;
1083        int rc;
1084        struct cx231xx_fmt *fmt;
1085        struct v4l2_mbus_framefmt mbus_fmt;
1086
1087        rc = check_dev(dev);
1088        if (rc < 0)
1089                return rc;
1090
1091        vidioc_try_fmt_vid_cap(file, priv, f);
1092
1093        fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1094        if (!fmt)
1095                return -EINVAL;
1096
1097        if (videobuf_queue_is_busy(&fh->vb_vidq)) {
1098                cx231xx_errdev("%s queue busy\n", __func__);
1099                return -EBUSY;
1100        }
1101
1102        if (dev->stream_on && !fh->stream_on) {
1103                cx231xx_errdev("%s device in use by another fh\n", __func__);
1104                return -EBUSY;
1105        }
1106
1107        /* set new image size */
1108        dev->width = f->fmt.pix.width;
1109        dev->height = f->fmt.pix.height;
1110        dev->format = fmt;
1111
1112        v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
1113        call_all(dev, video, s_mbus_fmt, &mbus_fmt);
1114        v4l2_fill_pix_format(&f->fmt.pix, &mbus_fmt);
1115
1116        return rc;
1117}
1118
1119static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
1120{
1121        struct cx231xx_fh *fh = priv;
1122        struct cx231xx *dev = fh->dev;
1123
1124        *id = dev->norm;
1125        return 0;
1126}
1127
1128static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm)
1129{
1130        struct cx231xx_fh *fh = priv;
1131        struct cx231xx *dev = fh->dev;
1132        struct v4l2_mbus_framefmt mbus_fmt;
1133        struct v4l2_format f;
1134        int rc;
1135
1136        rc = check_dev(dev);
1137        if (rc < 0)
1138                return rc;
1139
1140        cx231xx_info("vidioc_s_std : 0x%x\n", (unsigned int)*norm);
1141
1142        dev->norm = *norm;
1143
1144        /* Adjusts width/height, if needed */
1145        f.fmt.pix.width = dev->width;
1146        f.fmt.pix.height = dev->height;
1147        vidioc_try_fmt_vid_cap(file, priv, &f);
1148
1149        call_all(dev, core, s_std, dev->norm);
1150
1151        /* We need to reset basic properties in the decoder related to
1152           resolution (since a standard change effects things like the number
1153           of lines in VACT, etc) */
1154        v4l2_fill_mbus_format(&mbus_fmt, &f.fmt.pix, V4L2_MBUS_FMT_FIXED);
1155        call_all(dev, video, s_mbus_fmt, &mbus_fmt);
1156        v4l2_fill_pix_format(&f.fmt.pix, &mbus_fmt);
1157
1158        /* set new image size */
1159        dev->width = f.fmt.pix.width;
1160        dev->height = f.fmt.pix.height;
1161
1162        /* do mode control overrides */
1163        cx231xx_do_mode_ctrl_overrides(dev);
1164
1165        return 0;
1166}
1167
1168static const char *iname[] = {
1169        [CX231XX_VMUX_COMPOSITE1] = "Composite1",
1170        [CX231XX_VMUX_SVIDEO]     = "S-Video",
1171        [CX231XX_VMUX_TELEVISION] = "Television",
1172        [CX231XX_VMUX_CABLE]      = "Cable TV",
1173        [CX231XX_VMUX_DVB]        = "DVB",
1174        [CX231XX_VMUX_DEBUG]      = "for debug only",
1175};
1176
1177static int vidioc_enum_input(struct file *file, void *priv,
1178                             struct v4l2_input *i)
1179{
1180        struct cx231xx_fh *fh = priv;
1181        struct cx231xx *dev = fh->dev;
1182        unsigned int n;
1183
1184        n = i->index;
1185        if (n >= MAX_CX231XX_INPUT)
1186                return -EINVAL;
1187        if (0 == INPUT(n)->type)
1188                return -EINVAL;
1189
1190        i->index = n;
1191        i->type = V4L2_INPUT_TYPE_CAMERA;
1192
1193        strcpy(i->name, iname[INPUT(n)->type]);
1194
1195        if ((CX231XX_VMUX_TELEVISION == INPUT(n)->type) ||
1196            (CX231XX_VMUX_CABLE == INPUT(n)->type))
1197                i->type = V4L2_INPUT_TYPE_TUNER;
1198
1199        i->std = dev->vdev->tvnorms;
1200
1201        return 0;
1202}
1203
1204static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1205{
1206        struct cx231xx_fh *fh = priv;
1207        struct cx231xx *dev = fh->dev;
1208
1209        *i = dev->video_input;
1210
1211        return 0;
1212}
1213
1214static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1215{
1216        struct cx231xx_fh *fh = priv;
1217        struct cx231xx *dev = fh->dev;
1218        int rc;
1219
1220        dev->mode_tv = 0;
1221        rc = check_dev(dev);
1222        if (rc < 0)
1223                return rc;
1224
1225        if (i >= MAX_CX231XX_INPUT)
1226                return -EINVAL;
1227        if (0 == INPUT(i)->type)
1228                return -EINVAL;
1229
1230        video_mux(dev, i);
1231
1232        if (INPUT(i)->type == CX231XX_VMUX_TELEVISION ||
1233            INPUT(i)->type == CX231XX_VMUX_CABLE) {
1234                /* There's a tuner, so reset the standard and put it on the
1235                   last known frequency (since it was probably powered down
1236                   until now */
1237                call_all(dev, core, s_std, dev->norm);
1238        }
1239
1240        return 0;
1241}
1242
1243static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1244{
1245        struct cx231xx_fh *fh = priv;
1246        struct cx231xx *dev = fh->dev;
1247
1248        switch (a->index) {
1249        case CX231XX_AMUX_VIDEO:
1250                strcpy(a->name, "Television");
1251                break;
1252        case CX231XX_AMUX_LINE_IN:
1253                strcpy(a->name, "Line In");
1254                break;
1255        default:
1256                return -EINVAL;
1257        }
1258
1259        a->index = dev->ctl_ainput;
1260        a->capability = V4L2_AUDCAP_STEREO;
1261
1262        return 0;
1263}
1264
1265static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
1266{
1267        struct cx231xx_fh *fh = priv;
1268        struct cx231xx *dev = fh->dev;
1269        int status = 0;
1270
1271        /* Doesn't allow manual routing */
1272        if (a->index != dev->ctl_ainput)
1273                return -EINVAL;
1274
1275        dev->ctl_ainput = INPUT(a->index)->amux;
1276        status = cx231xx_set_audio_input(dev, dev->ctl_ainput);
1277
1278        return status;
1279}
1280
1281static int vidioc_queryctrl(struct file *file, void *priv,
1282                            struct v4l2_queryctrl *qc)
1283{
1284        struct cx231xx_fh *fh = priv;
1285        struct cx231xx *dev = fh->dev;
1286        int id = qc->id;
1287        int i;
1288        int rc;
1289
1290        rc = check_dev(dev);
1291        if (rc < 0)
1292                return rc;
1293
1294        qc->id = v4l2_ctrl_next(ctrl_classes, qc->id);
1295        if (unlikely(qc->id == 0))
1296                return -EINVAL;
1297
1298        memset(qc, 0, sizeof(*qc));
1299
1300        qc->id = id;
1301
1302        if (qc->id < V4L2_CID_BASE || qc->id >= V4L2_CID_LASTP1)
1303                return -EINVAL;
1304
1305        for (i = 0; i < CX231XX_CTLS; i++)
1306                if (cx231xx_ctls[i].v.id == qc->id)
1307                        break;
1308
1309        if (i == CX231XX_CTLS) {
1310                *qc = no_ctl;
1311                return 0;
1312        }
1313        *qc = cx231xx_ctls[i].v;
1314
1315        call_all(dev, core, queryctrl, qc);
1316
1317        if (qc->type)
1318                return 0;
1319        else
1320                return -EINVAL;
1321}
1322
1323static int vidioc_g_ctrl(struct file *file, void *priv,
1324                         struct v4l2_control *ctrl)
1325{
1326        struct cx231xx_fh *fh = priv;
1327        struct cx231xx *dev = fh->dev;
1328        int rc;
1329
1330        rc = check_dev(dev);
1331        if (rc < 0)
1332                return rc;
1333
1334        call_all(dev, core, g_ctrl, ctrl);
1335        return rc;
1336}
1337
1338static int vidioc_s_ctrl(struct file *file, void *priv,
1339                         struct v4l2_control *ctrl)
1340{
1341        struct cx231xx_fh *fh = priv;
1342        struct cx231xx *dev = fh->dev;
1343        int rc;
1344
1345        rc = check_dev(dev);
1346        if (rc < 0)
1347                return rc;
1348
1349        call_all(dev, core, s_ctrl, ctrl);
1350        return rc;
1351}
1352
1353static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1354{
1355        struct cx231xx_fh *fh = priv;
1356        struct cx231xx *dev = fh->dev;
1357        int rc;
1358
1359        rc = check_dev(dev);
1360        if (rc < 0)
1361                return rc;
1362
1363        if (0 != t->index)
1364                return -EINVAL;
1365
1366        strcpy(t->name, "Tuner");
1367
1368        t->type = V4L2_TUNER_ANALOG_TV;
1369        t->capability = V4L2_TUNER_CAP_NORM;
1370        t->rangehigh = 0xffffffffUL;
1371        t->signal = 0xffff;     /* LOCKED */
1372
1373        return 0;
1374}
1375
1376static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1377{
1378        struct cx231xx_fh *fh = priv;
1379        struct cx231xx *dev = fh->dev;
1380        int rc;
1381
1382        rc = check_dev(dev);
1383        if (rc < 0)
1384                return rc;
1385
1386        if (0 != t->index)
1387                return -EINVAL;
1388#if 0
1389        call_all(dev, tuner, s_tuner, t);
1390#endif
1391        return 0;
1392}
1393
1394static int vidioc_g_frequency(struct file *file, void *priv,
1395                              struct v4l2_frequency *f)
1396{
1397        struct cx231xx_fh *fh = priv;
1398        struct cx231xx *dev = fh->dev;
1399
1400        f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1401        f->frequency = dev->ctl_freq;
1402
1403        call_all(dev, tuner, g_frequency, f);
1404
1405        return 0;
1406}
1407
1408static int vidioc_s_frequency(struct file *file, void *priv,
1409                              struct v4l2_frequency *f)
1410{
1411        struct cx231xx_fh *fh = priv;
1412        struct cx231xx *dev = fh->dev;
1413        int rc;
1414        u32 if_frequency = 5400000;
1415
1416        cx231xx_info("Enter vidioc_s_frequency()f->frequency=%d;f->type=%d\n",
1417                 f->frequency, f->type);
1418        /*cx231xx_info("f->type:  1-radio 2-analogTV 3-digitalTV\n");*/
1419
1420        rc = check_dev(dev);
1421        if (rc < 0)
1422                return rc;
1423
1424        if (0 != f->tuner)
1425                return -EINVAL;
1426
1427        if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1428                return -EINVAL;
1429        if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1430                return -EINVAL;
1431
1432        /* set pre channel change settings in DIF first */
1433        rc = cx231xx_tuner_pre_channel_change(dev);
1434
1435        dev->ctl_freq = f->frequency;
1436        call_all(dev, tuner, s_frequency, f);
1437
1438        /* set post channel change settings in DIF first */
1439        rc = cx231xx_tuner_post_channel_change(dev);
1440
1441        if (dev->tuner_type == TUNER_NXP_TDA18271) {
1442                if (dev->norm & (V4L2_STD_MN | V4L2_STD_NTSC_443))
1443                        if_frequency = 5400000;  /*5.4MHz       */
1444                else if (dev->norm & V4L2_STD_B)
1445                        if_frequency = 6000000;  /*6.0MHz       */
1446                else if (dev->norm & (V4L2_STD_PAL_DK | V4L2_STD_SECAM_DK))
1447                        if_frequency = 6900000;  /*6.9MHz       */
1448                else if (dev->norm & V4L2_STD_GH)
1449                        if_frequency = 7100000;  /*7.1MHz       */
1450                else if (dev->norm & V4L2_STD_PAL_I)
1451                        if_frequency = 7250000;  /*7.25MHz      */
1452                else if (dev->norm & V4L2_STD_SECAM_L)
1453                        if_frequency = 6900000;  /*6.9MHz       */
1454                else if (dev->norm & V4L2_STD_SECAM_LC)
1455                        if_frequency = 1250000;  /*1.25MHz      */
1456
1457                cx231xx_info("if_frequency is set to %d\n", if_frequency);
1458                cx231xx_set_Colibri_For_LowIF(dev, if_frequency, 1, 1);
1459
1460                update_HH_register_after_set_DIF(dev);
1461        }
1462
1463        cx231xx_info("Set New FREQUENCY to %d\n", f->frequency);
1464
1465        return rc;
1466}
1467
1468#ifdef CONFIG_VIDEO_ADV_DEBUG
1469
1470/*
1471  -R, --list-registers=type=<host/i2cdrv/i2caddr>,
1472                                chip=<chip>[,min=<addr>,max=<addr>]
1473                     dump registers from <min> to <max> [VIDIOC_DBG_G_REGISTER]
1474  -r, --set-register=type=<host/i2cdrv/i2caddr>,
1475                                chip=<chip>,reg=<addr>,val=<val>
1476                     set the register [VIDIOC_DBG_S_REGISTER]
1477
1478  if type == host, then <chip> is the hosts chip ID (default 0)
1479  if type == i2cdrv (default), then <chip> is the I2C driver name or ID
1480  if type == i2caddr, then <chip> is the 7-bit I2C address
1481*/
1482
1483static int vidioc_g_register(struct file *file, void *priv,
1484                             struct v4l2_dbg_register *reg)
1485{
1486        struct cx231xx_fh *fh = priv;
1487        struct cx231xx *dev = fh->dev;
1488        int ret = 0;
1489        u8 value[4] = { 0, 0, 0, 0 };
1490        u32 data = 0;
1491
1492        switch (reg->match.type) {
1493        case V4L2_CHIP_MATCH_HOST:
1494                switch (reg->match.addr) {
1495                case 0: /* Cx231xx - internal registers */
1496                        ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
1497                                                  (u16)reg->reg, value, 4);
1498                        reg->val = value[0] | value[1] << 8 |
1499                                   value[2] << 16 | value[3] << 24;
1500                        break;
1501                case 1: /* AFE - read byte */
1502                        ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1503                                                  (u16)reg->reg, 2, &data, 1);
1504                        reg->val = le32_to_cpu(data & 0xff);
1505                        break;
1506                case 14: /* AFE - read dword */
1507                        ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
1508                                                  (u16)reg->reg, 2, &data, 4);
1509                        reg->val = le32_to_cpu(data);
1510                        break;
1511                case 2: /* Video Block - read byte */
1512                        ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1513                                                  (u16)reg->reg, 2, &data, 1);
1514                        reg->val = le32_to_cpu(data & 0xff);
1515                        break;
1516                case 24: /* Video Block - read dword */
1517                        ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
1518                                                  (u16)reg->reg, 2, &data, 4);
1519                        reg->val = le32_to_cpu(data);
1520                        break;
1521                case 3: /* I2S block - read byte */
1522                        ret = cx231xx_read_i2c_data(dev,
1523                                                    I2S_BLK_DEVICE_ADDRESS,
1524                                                    (u16)reg->reg, 1,
1525                                                    &data, 1);
1526                        reg->val = le32_to_cpu(data & 0xff);
1527                        break;
1528                case 34: /* I2S Block - read dword */
1529                        ret =
1530                            cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
1531                                                  (u16)reg->reg, 1, &data, 4);
1532                        reg->val = le32_to_cpu(data);
1533                        break;
1534                }
1535                return ret < 0 ? ret : 0;
1536
1537        case V4L2_CHIP_MATCH_I2C_DRIVER:
1538                call_all(dev, core, g_register, reg);
1539                return 0;
1540        case V4L2_CHIP_MATCH_I2C_ADDR:/*for register debug*/
1541                switch (reg->match.addr) {
1542                case 0: /* Cx231xx - internal registers */
1543                        ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
1544                                                  (u16)reg->reg, value, 4);
1545                        reg->val = value[0] | value[1] << 8 |
1546                                   value[2] << 16 | value[3] << 24;
1547
1548                        break;
1549                case 0x600:/* AFE - read byte */
1550                        ret = cx231xx_read_i2c_master(dev, AFE_DEVICE_ADDRESS,
1551                                                 (u16)reg->reg, 2,
1552                                                 &data, 1 , 0);
1553                        reg->val = le32_to_cpu(data & 0xff);
1554                        break;
1555
1556                case 0x880:/* Video Block - read byte */
1557                        if (reg->reg < 0x0b) {
1558                                ret = cx231xx_read_i2c_master(dev,
1559                                                VID_BLK_I2C_ADDRESS,
1560                                                 (u16)reg->reg, 2,
1561                                                 &data, 1 , 0);
1562                                reg->val = le32_to_cpu(data & 0xff);
1563                        } else {
1564                                ret = cx231xx_read_i2c_master(dev,
1565                                                VID_BLK_I2C_ADDRESS,
1566                                                 (u16)reg->reg, 2,
1567                                                 &data, 4 , 0);
1568                                reg->val = le32_to_cpu(data);
1569                        }
1570                        break;
1571                case 0x980:
1572                        ret = cx231xx_read_i2c_master(dev,
1573                                                I2S_BLK_DEVICE_ADDRESS,
1574                                                (u16)reg->reg, 1,
1575                                                &data, 1 , 0);
1576                        reg->val = le32_to_cpu(data & 0xff);
1577                        break;
1578                case 0x400:
1579                        ret =
1580                            cx231xx_read_i2c_master(dev, 0x40,
1581                                                  (u16)reg->reg, 1,
1582                                                 &data, 1 , 0);
1583                        reg->val = le32_to_cpu(data & 0xff);
1584                        break;
1585                case 0xc01:
1586                        ret =
1587                                cx231xx_read_i2c_master(dev, 0xc0,
1588                                                (u16)reg->reg, 2,
1589                                                 &data, 38, 1);
1590                        reg->val = le32_to_cpu(data);
1591                        break;
1592                case 0x022:
1593                        ret =
1594                                cx231xx_read_i2c_master(dev, 0x02,
1595                                                (u16)reg->reg, 1,
1596                                                 &data, 1, 2);
1597                        reg->val = le32_to_cpu(data & 0xff);
1598                        break;
1599                case 0x322:
1600                        ret = cx231xx_read_i2c_master(dev,
1601                                                0x32,
1602                                                 (u16)reg->reg, 1,
1603                                                 &data, 4 , 2);
1604                                reg->val = le32_to_cpu(data);
1605                        break;
1606                case 0x342:
1607                        ret = cx231xx_read_i2c_master(dev,
1608                                                0x34,
1609                                                 (u16)reg->reg, 1,
1610                                                 &data, 4 , 2);
1611                                reg->val = le32_to_cpu(data);
1612                        break;
1613
1614                default:
1615                        cx231xx_info("no match device address!!\n");
1616                        break;
1617                        }
1618                return ret < 0 ? ret : 0;
1619                /*return -EINVAL;*/
1620        default:
1621                if (!v4l2_chip_match_host(&reg->match))
1622                        return -EINVAL;
1623        }
1624
1625        call_all(dev, core, g_register, reg);
1626
1627        return ret;
1628}
1629
1630static int vidioc_s_register(struct file *file, void *priv,
1631                             struct v4l2_dbg_register *reg)
1632{
1633        struct cx231xx_fh *fh = priv;
1634        struct cx231xx *dev = fh->dev;
1635        int ret = 0;
1636        __le64 buf;
1637        u32 value;
1638        u8 data[4] = { 0, 0, 0, 0 };
1639
1640        buf = cpu_to_le64(reg->val);
1641
1642        switch (reg->match.type) {
1643        case V4L2_CHIP_MATCH_HOST:
1644                {
1645                        value = (u32) buf & 0xffffffff;
1646
1647                        switch (reg->match.addr) {
1648                        case 0: /* cx231xx internal registers */
1649                                data[0] = (u8) value;
1650                                data[1] = (u8) (value >> 8);
1651                                data[2] = (u8) (value >> 16);
1652                                data[3] = (u8) (value >> 24);
1653                                ret = cx231xx_write_ctrl_reg(dev,
1654                                                           VRT_SET_REGISTER,
1655                                                           (u16)reg->reg, data,
1656                                                           4);
1657                                break;
1658                        case 1: /* AFE - read byte */
1659                                ret = cx231xx_write_i2c_data(dev,
1660                                                        AFE_DEVICE_ADDRESS,
1661                                                        (u16)reg->reg, 2,
1662                                                        value, 1);
1663                                break;
1664                        case 14: /* AFE - read dword */
1665                                ret = cx231xx_write_i2c_data(dev,
1666                                                        AFE_DEVICE_ADDRESS,
1667                                                        (u16)reg->reg, 2,
1668                                                        value, 4);
1669                                break;
1670                        case 2: /* Video Block - read byte */
1671                                ret =
1672                                    cx231xx_write_i2c_data(dev,
1673                                                        VID_BLK_I2C_ADDRESS,
1674                                                        (u16)reg->reg, 2,
1675                                                        value, 1);
1676                                break;
1677                        case 24: /* Video Block - read dword */
1678                                ret =
1679                                    cx231xx_write_i2c_data(dev,
1680                                                        VID_BLK_I2C_ADDRESS,
1681                                                        (u16)reg->reg, 2,
1682                                                        value, 4);
1683                                break;
1684                        case 3: /* I2S block - read byte */
1685                                ret =
1686                                    cx231xx_write_i2c_data(dev,
1687                                                        I2S_BLK_DEVICE_ADDRESS,
1688                                                        (u16)reg->reg, 1,
1689                                                        value, 1);
1690                                break;
1691                        case 34: /* I2S block - read dword */
1692                                ret =
1693                                    cx231xx_write_i2c_data(dev,
1694                                                        I2S_BLK_DEVICE_ADDRESS,
1695                                                        (u16)reg->reg, 1,
1696                                                        value, 4);
1697                                break;
1698                        }
1699                }
1700                return ret < 0 ? ret : 0;
1701        case V4L2_CHIP_MATCH_I2C_ADDR:
1702                {
1703                        value = (u32) buf & 0xffffffff;
1704
1705                        switch (reg->match.addr) {
1706                        case 0:/*cx231xx internal registers*/
1707                                        data[0] = (u8) value;
1708                                        data[1] = (u8) (value >> 8);
1709                                        data[2] = (u8) (value >> 16);
1710                                        data[3] = (u8) (value >> 24);
1711                                        ret = cx231xx_write_ctrl_reg(dev,
1712                                                           VRT_SET_REGISTER,
1713                                                           (u16)reg->reg, data,
1714                                                           4);
1715                                        break;
1716                        case 0x600:/* AFE - read byte */
1717                                        ret = cx231xx_write_i2c_master(dev,
1718                                                        AFE_DEVICE_ADDRESS,
1719                                                        (u16)reg->reg, 2,
1720                                                        value, 1 , 0);
1721                                        break;
1722
1723                        case 0x880:/* Video Block - read byte */
1724                                        if (reg->reg < 0x0b)
1725                                                cx231xx_write_i2c_master(dev,
1726                                                        VID_BLK_I2C_ADDRESS,
1727                                                        (u16)reg->reg, 2,
1728                                                        value, 1, 0);
1729                                        else
1730                                                cx231xx_write_i2c_master(dev,
1731                                                        VID_BLK_I2C_ADDRESS,
1732                                                        (u16)reg->reg, 2,
1733                                                        value, 4, 0);
1734                                        break;
1735                        case 0x980:
1736                                        ret =
1737                                                cx231xx_write_i2c_master(dev,
1738                                                        I2S_BLK_DEVICE_ADDRESS,
1739                                                        (u16)reg->reg, 1,
1740                                                        value, 1, 0);
1741                                        break;
1742                        case 0x400:
1743                                        ret =
1744                                                cx231xx_write_i2c_master(dev,
1745                                                        0x40,
1746                                                        (u16)reg->reg, 1,
1747                                                        value, 1, 0);
1748                                        break;
1749                        case 0xc01:
1750                                        ret =
1751                                                cx231xx_write_i2c_master(dev,
1752                                                         0xc0,
1753                                                         (u16)reg->reg, 1,
1754                                                         value, 1, 1);
1755                                        break;
1756
1757                        case 0x022:
1758                                        ret =
1759                                                cx231xx_write_i2c_master(dev,
1760                                                        0x02,
1761                                                        (u16)reg->reg, 1,
1762                                                        value, 1, 2);
1763                        case 0x322:
1764                                        ret =
1765                                                cx231xx_write_i2c_master(dev,
1766                                                        0x32,
1767                                                        (u16)reg->reg, 1,
1768                                                        value, 4, 2);
1769                                        break;
1770
1771                        case 0x342:
1772                                        ret =
1773                                                cx231xx_write_i2c_master(dev,
1774                                                        0x34,
1775                                                        (u16)reg->reg, 1,
1776                                                        value, 4, 2);
1777                                        break;
1778                        default:
1779                                cx231xx_info("no match device address, "
1780                                        "the value is %x\n", reg->match.addr);
1781                                        break;
1782
1783                                        }
1784
1785                }
1786        default:
1787                break;
1788        }
1789
1790        call_all(dev, core, s_register, reg);
1791
1792        return ret;
1793}
1794#endif
1795
1796static int vidioc_cropcap(struct file *file, void *priv,
1797                          struct v4l2_cropcap *cc)
1798{
1799        struct cx231xx_fh *fh = priv;
1800        struct cx231xx *dev = fh->dev;
1801
1802        if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1803                return -EINVAL;
1804
1805        cc->bounds.left = 0;
1806        cc->bounds.top = 0;
1807        cc->bounds.width = dev->width;
1808        cc->bounds.height = dev->height;
1809        cc->defrect = cc->bounds;
1810        cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */
1811        cc->pixelaspect.denominator = 59;
1812
1813        return 0;
1814}
1815
1816static int vidioc_streamon(struct file *file, void *priv,
1817                           enum v4l2_buf_type type)
1818{
1819        struct cx231xx_fh *fh = priv;
1820        struct cx231xx *dev = fh->dev;
1821        int rc;
1822
1823        rc = check_dev(dev);
1824        if (rc < 0)
1825                return rc;
1826
1827        rc = res_get(fh);
1828
1829        if (likely(rc >= 0))
1830                rc = videobuf_streamon(&fh->vb_vidq);
1831
1832        call_all(dev, video, s_stream, 1);
1833
1834        return rc;
1835}
1836
1837static int vidioc_streamoff(struct file *file, void *priv,
1838                            enum v4l2_buf_type type)
1839{
1840        struct cx231xx_fh *fh = priv;
1841        struct cx231xx *dev = fh->dev;
1842        int rc;
1843
1844        rc = check_dev(dev);
1845        if (rc < 0)
1846                return rc;
1847
1848        if ((fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
1849            (fh->type != V4L2_BUF_TYPE_VBI_CAPTURE))
1850                return -EINVAL;
1851        if (type != fh->type)
1852                return -EINVAL;
1853
1854        cx25840_call(dev, video, s_stream, 0);
1855
1856        videobuf_streamoff(&fh->vb_vidq);
1857        res_free(fh);
1858
1859        return 0;
1860}
1861
1862static int vidioc_querycap(struct file *file, void *priv,
1863                           struct v4l2_capability *cap)
1864{
1865        struct cx231xx_fh *fh = priv;
1866        struct cx231xx *dev = fh->dev;
1867
1868        strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
1869        strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
1870        usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
1871
1872        cap->version = CX231XX_VERSION_CODE;
1873
1874        cap->capabilities = V4L2_CAP_VBI_CAPTURE |
1875#if 0
1876                V4L2_CAP_SLICED_VBI_CAPTURE |
1877#endif
1878                V4L2_CAP_VIDEO_CAPTURE  |
1879                V4L2_CAP_AUDIO          |
1880                V4L2_CAP_READWRITE      |
1881                V4L2_CAP_STREAMING;
1882
1883        if (dev->tuner_type != TUNER_ABSENT)
1884                cap->capabilities |= V4L2_CAP_TUNER;
1885
1886        return 0;
1887}
1888
1889static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1890                                   struct v4l2_fmtdesc *f)
1891{
1892        if (unlikely(f->index >= ARRAY_SIZE(format)))
1893                return -EINVAL;
1894
1895        strlcpy(f->description, format[f->index].name, sizeof(f->description));
1896        f->pixelformat = format[f->index].fourcc;
1897
1898        return 0;
1899}
1900
1901/* Sliced VBI ioctls */
1902static int vidioc_g_fmt_sliced_vbi_cap(struct file *file, void *priv,
1903                                       struct v4l2_format *f)
1904{
1905        struct cx231xx_fh *fh = priv;
1906        struct cx231xx *dev = fh->dev;
1907        int rc;
1908
1909        rc = check_dev(dev);
1910        if (rc < 0)
1911                return rc;
1912
1913        f->fmt.sliced.service_set = 0;
1914
1915        call_all(dev, vbi, g_sliced_fmt, &f->fmt.sliced);
1916
1917        if (f->fmt.sliced.service_set == 0)
1918                rc = -EINVAL;
1919
1920        return rc;
1921}
1922
1923static int vidioc_try_set_sliced_vbi_cap(struct file *file, void *priv,
1924                                         struct v4l2_format *f)
1925{
1926        struct cx231xx_fh *fh = priv;
1927        struct cx231xx *dev = fh->dev;
1928        int rc;
1929
1930        rc = check_dev(dev);
1931        if (rc < 0)
1932                return rc;
1933
1934        call_all(dev, vbi, g_sliced_fmt, &f->fmt.sliced);
1935
1936        if (f->fmt.sliced.service_set == 0)
1937                return -EINVAL;
1938
1939        return 0;
1940}
1941
1942/* RAW VBI ioctls */
1943
1944static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1945                                struct v4l2_format *f)
1946{
1947        struct cx231xx_fh *fh = priv;
1948        struct cx231xx *dev = fh->dev;
1949        f->fmt.vbi.sampling_rate = 6750000 * 4;
1950        f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1951        f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1952        f->fmt.vbi.offset = 0;
1953        f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1954            PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1955        f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1956            PAL_VBI_LINES : NTSC_VBI_LINES;
1957        f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1958            PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1959        f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1960
1961        return 0;
1962
1963}
1964
1965static int vidioc_try_fmt_vbi_cap(struct file *file, void *priv,
1966                                  struct v4l2_format *f)
1967{
1968        struct cx231xx_fh *fh = priv;
1969        struct cx231xx *dev = fh->dev;
1970
1971        if (dev->vbi_stream_on && !fh->stream_on) {
1972                cx231xx_errdev("%s device in use by another fh\n", __func__);
1973                return -EBUSY;
1974        }
1975
1976        f->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1977        f->fmt.vbi.sampling_rate = 6750000 * 4;
1978        f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
1979        f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1980        f->fmt.vbi.offset = 0;
1981        f->fmt.vbi.flags = 0;
1982        f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
1983            PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
1984        f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
1985            PAL_VBI_LINES : NTSC_VBI_LINES;
1986        f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
1987            PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
1988        f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1989
1990        return 0;
1991
1992}
1993
1994static int vidioc_reqbufs(struct file *file, void *priv,
1995                          struct v4l2_requestbuffers *rb)
1996{
1997        struct cx231xx_fh *fh = priv;
1998        struct cx231xx *dev = fh->dev;
1999        int rc;
2000
2001        rc = check_dev(dev);
2002        if (rc < 0)
2003                return rc;
2004
2005        return videobuf_reqbufs(&fh->vb_vidq, rb);
2006}
2007
2008static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *b)
2009{
2010        struct cx231xx_fh *fh = priv;
2011        struct cx231xx *dev = fh->dev;
2012        int rc;
2013
2014        rc = check_dev(dev);
2015        if (rc < 0)
2016                return rc;
2017
2018        return videobuf_querybuf(&fh->vb_vidq, b);
2019}
2020
2021static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2022{
2023        struct cx231xx_fh *fh = priv;
2024        struct cx231xx *dev = fh->dev;
2025        int rc;
2026
2027        rc = check_dev(dev);
2028        if (rc < 0)
2029                return rc;
2030
2031        return videobuf_qbuf(&fh->vb_vidq, b);
2032}
2033
2034static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2035{
2036        struct cx231xx_fh *fh = priv;
2037        struct cx231xx *dev = fh->dev;
2038        int rc;
2039
2040        rc = check_dev(dev);
2041        if (rc < 0)
2042                return rc;
2043
2044        return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK);
2045}
2046
2047/* ----------------------------------------------------------- */
2048/* RADIO ESPECIFIC IOCTLS                                      */
2049/* ----------------------------------------------------------- */
2050
2051static int radio_querycap(struct file *file, void *priv,
2052                          struct v4l2_capability *cap)
2053{
2054        struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
2055
2056        strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
2057        strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
2058        usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
2059
2060        cap->version = CX231XX_VERSION_CODE;
2061        cap->capabilities = V4L2_CAP_TUNER;
2062        return 0;
2063}
2064
2065static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
2066{
2067        struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
2068
2069        if (unlikely(t->index > 0))
2070                return -EINVAL;
2071
2072        strcpy(t->name, "Radio");
2073        t->type = V4L2_TUNER_RADIO;
2074
2075        call_all(dev, tuner, s_tuner, t);
2076
2077        return 0;
2078}
2079
2080static int radio_enum_input(struct file *file, void *priv, struct v4l2_input *i)
2081{
2082        if (i->index != 0)
2083                return -EINVAL;
2084        strcpy(i->name, "Radio");
2085        i->type = V4L2_INPUT_TYPE_TUNER;
2086
2087        return 0;
2088}
2089
2090static int radio_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
2091{
2092        if (unlikely(a->index))
2093                return -EINVAL;
2094
2095        strcpy(a->name, "Radio");
2096        return 0;
2097}
2098
2099static int radio_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
2100{
2101        struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
2102
2103        if (0 != t->index)
2104                return -EINVAL;
2105
2106        call_all(dev, tuner, s_tuner, t);
2107
2108        return 0;
2109}
2110
2111static int radio_s_audio(struct file *file, void *fh, struct v4l2_audio *a)
2112{
2113        return 0;
2114}
2115
2116static int radio_s_input(struct file *file, void *fh, unsigned int i)
2117{
2118        return 0;
2119}
2120
2121static int radio_queryctrl(struct file *file, void *priv,
2122                           struct v4l2_queryctrl *c)
2123{
2124        int i;
2125
2126        if (c->id < V4L2_CID_BASE || c->id >= V4L2_CID_LASTP1)
2127                return -EINVAL;
2128        if (c->id == V4L2_CID_AUDIO_MUTE) {
2129                for (i = 0; i < CX231XX_CTLS; i++) {
2130                        if (cx231xx_ctls[i].v.id == c->id)
2131                                break;
2132                }
2133                if (i == CX231XX_CTLS)
2134                        return -EINVAL;
2135                *c = cx231xx_ctls[i].v;
2136        } else
2137                *c = no_ctl;
2138        return 0;
2139}
2140
2141/*
2142 * cx231xx_v4l2_open()
2143 * inits the device and starts isoc transfer
2144 */
2145static int cx231xx_v4l2_open(struct file *filp)
2146{
2147        int errCode = 0, radio = 0;
2148        struct video_device *vdev = video_devdata(filp);
2149        struct cx231xx *dev = video_drvdata(filp);
2150        struct cx231xx_fh *fh;
2151        enum v4l2_buf_type fh_type = 0;
2152
2153        switch (vdev->vfl_type) {
2154        case VFL_TYPE_GRABBER:
2155                fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2156                break;
2157        case VFL_TYPE_VBI:
2158                fh_type = V4L2_BUF_TYPE_VBI_CAPTURE;
2159                break;
2160        case VFL_TYPE_RADIO:
2161                radio = 1;
2162                break;
2163        }
2164
2165        cx231xx_videodbg("open dev=%s type=%s users=%d\n",
2166                         video_device_node_name(vdev), v4l2_type_names[fh_type],
2167                         dev->users);
2168
2169#if 0
2170        errCode = cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
2171        if (errCode < 0) {
2172                cx231xx_errdev
2173                    ("Device locked on digital mode. Can't open analog\n");
2174                return -EBUSY;
2175        }
2176#endif
2177
2178        fh = kzalloc(sizeof(struct cx231xx_fh), GFP_KERNEL);
2179        if (!fh) {
2180                cx231xx_errdev("cx231xx-video.c: Out of memory?!\n");
2181                return -ENOMEM;
2182        }
2183        fh->dev = dev;
2184        fh->radio = radio;
2185        fh->type = fh_type;
2186        filp->private_data = fh;
2187
2188        if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
2189                dev->width = norm_maxw(dev);
2190                dev->height = norm_maxh(dev);
2191
2192                /* Power up in Analog TV mode */
2193                if (dev->model == CX231XX_BOARD_CNXT_VIDEO_GRABBER ||
2194                    dev->model == CX231XX_BOARD_HAUPPAUGE_USBLIVE2)
2195                        cx231xx_set_power_mode(dev,
2196                                 POLARIS_AVMODE_ENXTERNAL_AV);
2197                else
2198                        cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV);
2199
2200#if 0
2201                cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
2202#endif
2203
2204                /* set video alternate setting */
2205                cx231xx_set_video_alternate(dev);
2206
2207                /* Needed, since GPIO might have disabled power of
2208                   some i2c device */
2209                cx231xx_config_i2c(dev);
2210
2211                /* device needs to be initialized before isoc transfer */
2212                dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
2213
2214        }
2215        if (fh->radio) {
2216                cx231xx_videodbg("video_open: setting radio device\n");
2217
2218                /* cx231xx_start_radio(dev); */
2219
2220                call_all(dev, tuner, s_radio);
2221        }
2222
2223        dev->users++;
2224
2225        if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
2226                videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_video_qops,
2227                                            NULL, &dev->video_mode.slock,
2228                                            fh->type, V4L2_FIELD_INTERLACED,
2229                                            sizeof(struct cx231xx_buffer),
2230                                            fh, &dev->lock);
2231        if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
2232                /* Set the required alternate setting  VBI interface works in
2233                   Bulk mode only */
2234                if (dev->model != CX231XX_BOARD_CNXT_VIDEO_GRABBER &&
2235                    dev->model != CX231XX_BOARD_HAUPPAUGE_USBLIVE2)
2236                        cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
2237
2238                videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_vbi_qops,
2239                                            NULL, &dev->vbi_mode.slock,
2240                                            fh->type, V4L2_FIELD_SEQ_TB,
2241                                            sizeof(struct cx231xx_buffer),
2242                                            fh, &dev->lock);
2243        }
2244
2245        return errCode;
2246}
2247
2248/*
2249 * cx231xx_realease_resources()
2250 * unregisters the v4l2,i2c and usb devices
2251 * called when the device gets disconected or at module unload
2252*/
2253void cx231xx_release_analog_resources(struct cx231xx *dev)
2254{
2255
2256        /*FIXME: I2C IR should be disconnected */
2257
2258        if (dev->radio_dev) {
2259                if (video_is_registered(dev->radio_dev))
2260                        video_unregister_device(dev->radio_dev);
2261                else
2262                        video_device_release(dev->radio_dev);
2263                dev->radio_dev = NULL;
2264        }
2265        if (dev->vbi_dev) {
2266                cx231xx_info("V4L2 device %s deregistered\n",
2267                             video_device_node_name(dev->vbi_dev));
2268                if (video_is_registered(dev->vbi_dev))
2269                        video_unregister_device(dev->vbi_dev);
2270                else
2271                        video_device_release(dev->vbi_dev);
2272                dev->vbi_dev = NULL;
2273        }
2274        if (dev->vdev) {
2275                cx231xx_info("V4L2 device %s deregistered\n",
2276                             video_device_node_name(dev->vdev));
2277
2278                if (dev->model == CX231XX_BOARD_CNXT_VIDEO_GRABBER)
2279                        cx231xx_417_unregister(dev);
2280
2281                if (video_is_registered(dev->vdev))
2282                        video_unregister_device(dev->vdev);
2283                else
2284                        video_device_release(dev->vdev);
2285                dev->vdev = NULL;
2286        }
2287}
2288
2289/*
2290 * cx231xx_v4l2_close()
2291 * stops streaming and deallocates all resources allocated by the v4l2
2292 * calls and ioctls
2293 */
2294static int cx231xx_v4l2_close(struct file *filp)
2295{
2296        struct cx231xx_fh *fh = filp->private_data;
2297        struct cx231xx *dev = fh->dev;
2298
2299        cx231xx_videodbg("users=%d\n", dev->users);
2300
2301        cx231xx_videodbg("users=%d\n", dev->users);
2302        if (res_check(fh))
2303                res_free(fh);
2304
2305        /*To workaround error number=-71 on EP0 for VideoGrabber,
2306                 need exclude following.*/
2307        if (dev->model != CX231XX_BOARD_CNXT_VIDEO_GRABBER &&
2308            dev->model != CX231XX_BOARD_HAUPPAUGE_USBLIVE2)
2309                if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
2310                        videobuf_stop(&fh->vb_vidq);
2311                        videobuf_mmap_free(&fh->vb_vidq);
2312
2313                        /* the device is already disconnect,
2314                           free the remaining resources */
2315                        if (dev->state & DEV_DISCONNECTED) {
2316                                if (atomic_read(&dev->devlist_count) > 0) {
2317                                        cx231xx_release_resources(dev);
2318                                        kfree(dev);
2319                                        dev = NULL;
2320                                        return 0;
2321                                }
2322                                return 0;
2323                        }
2324
2325                        /* do this before setting alternate! */
2326                        cx231xx_uninit_vbi_isoc(dev);
2327
2328                        /* set alternate 0 */
2329                        if (!dev->vbi_or_sliced_cc_mode)
2330                                cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
2331                        else
2332                                cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
2333
2334                        kfree(fh);
2335                        dev->users--;
2336                        wake_up_interruptible_nr(&dev->open, 1);
2337                        return 0;
2338                }
2339
2340        if (dev->users == 1) {
2341                videobuf_stop(&fh->vb_vidq);
2342                videobuf_mmap_free(&fh->vb_vidq);
2343
2344                /* the device is already disconnect,
2345                   free the remaining resources */
2346                if (dev->state & DEV_DISCONNECTED) {
2347                        cx231xx_release_resources(dev);
2348                        kfree(dev);
2349                        dev = NULL;
2350                        return 0;
2351                }
2352
2353                /* Save some power by putting tuner to sleep */
2354                call_all(dev, core, s_power, 0);
2355
2356                /* do this before setting alternate! */
2357                if (dev->USE_ISO)
2358                        cx231xx_uninit_isoc(dev);
2359                else
2360                        cx231xx_uninit_bulk(dev);
2361                cx231xx_set_mode(dev, CX231XX_SUSPEND);
2362
2363                /* set alternate 0 */
2364                cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
2365        }
2366        kfree(fh);
2367        dev->users--;
2368        wake_up_interruptible_nr(&dev->open, 1);
2369        return 0;
2370}
2371
2372/*
2373 * cx231xx_v4l2_read()
2374 * will allocate buffers when called for the first time
2375 */
2376static ssize_t
2377cx231xx_v4l2_read(struct file *filp, char __user *buf, size_t count,
2378                  loff_t *pos)
2379{
2380        struct cx231xx_fh *fh = filp->private_data;
2381        struct cx231xx *dev = fh->dev;
2382        int rc;
2383
2384        rc = check_dev(dev);
2385        if (rc < 0)
2386                return rc;
2387
2388        if ((fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
2389            (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)) {
2390                rc = res_get(fh);
2391
2392                if (unlikely(rc < 0))
2393                        return rc;
2394
2395                return videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0,
2396                                            filp->f_flags & O_NONBLOCK);
2397        }
2398        return 0;
2399}
2400
2401/*
2402 * cx231xx_v4l2_poll()
2403 * will allocate buffers when called for the first time
2404 */
2405static unsigned int cx231xx_v4l2_poll(struct file *filp, poll_table *wait)
2406{
2407        struct cx231xx_fh *fh = filp->private_data;
2408        struct cx231xx *dev = fh->dev;
2409        int rc;
2410
2411        rc = check_dev(dev);
2412        if (rc < 0)
2413                return rc;
2414
2415        rc = res_get(fh);
2416
2417        if (unlikely(rc < 0))
2418                return POLLERR;
2419
2420        if ((V4L2_BUF_TYPE_VIDEO_CAPTURE == fh->type) ||
2421            (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type))
2422                return videobuf_poll_stream(filp, &fh->vb_vidq, wait);
2423        else
2424                return POLLERR;
2425}
2426
2427/*
2428 * cx231xx_v4l2_mmap()
2429 */
2430static int cx231xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
2431{
2432        struct cx231xx_fh *fh = filp->private_data;
2433        struct cx231xx *dev = fh->dev;
2434        int rc;
2435
2436        rc = check_dev(dev);
2437        if (rc < 0)
2438                return rc;
2439
2440        rc = res_get(fh);
2441
2442        if (unlikely(rc < 0))
2443                return rc;
2444
2445        rc = videobuf_mmap_mapper(&fh->vb_vidq, vma);
2446
2447        cx231xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n",
2448                         (unsigned long)vma->vm_start,
2449                         (unsigned long)vma->vm_end -
2450                         (unsigned long)vma->vm_start, rc);
2451
2452        return rc;
2453}
2454
2455static const struct v4l2_file_operations cx231xx_v4l_fops = {
2456        .owner   = THIS_MODULE,
2457        .open    = cx231xx_v4l2_open,
2458        .release = cx231xx_v4l2_close,
2459        .read    = cx231xx_v4l2_read,
2460        .poll    = cx231xx_v4l2_poll,
2461        .mmap    = cx231xx_v4l2_mmap,
2462        .unlocked_ioctl   = video_ioctl2,
2463};
2464
2465static const struct v4l2_ioctl_ops video_ioctl_ops = {
2466        .vidioc_querycap               = vidioc_querycap,
2467        .vidioc_enum_fmt_vid_cap       = vidioc_enum_fmt_vid_cap,
2468        .vidioc_g_fmt_vid_cap          = vidioc_g_fmt_vid_cap,
2469        .vidioc_try_fmt_vid_cap        = vidioc_try_fmt_vid_cap,
2470        .vidioc_s_fmt_vid_cap          = vidioc_s_fmt_vid_cap,
2471        .vidioc_g_fmt_vbi_cap          = vidioc_g_fmt_vbi_cap,
2472        .vidioc_try_fmt_vbi_cap        = vidioc_try_fmt_vbi_cap,
2473        .vidioc_s_fmt_vbi_cap          = vidioc_try_fmt_vbi_cap,
2474        .vidioc_g_audio                =  vidioc_g_audio,
2475        .vidioc_s_audio                = vidioc_s_audio,
2476        .vidioc_cropcap                = vidioc_cropcap,
2477        .vidioc_g_fmt_sliced_vbi_cap   = vidioc_g_fmt_sliced_vbi_cap,
2478        .vidioc_try_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap,
2479        .vidioc_reqbufs                = vidioc_reqbufs,
2480        .vidioc_querybuf               = vidioc_querybuf,
2481        .vidioc_qbuf                   = vidioc_qbuf,
2482        .vidioc_dqbuf                  = vidioc_dqbuf,
2483        .vidioc_s_std                  = vidioc_s_std,
2484        .vidioc_g_std                  = vidioc_g_std,
2485        .vidioc_enum_input             = vidioc_enum_input,
2486        .vidioc_g_input                = vidioc_g_input,
2487        .vidioc_s_input                = vidioc_s_input,
2488        .vidioc_queryctrl              = vidioc_queryctrl,
2489        .vidioc_g_ctrl                 = vidioc_g_ctrl,
2490        .vidioc_s_ctrl                 = vidioc_s_ctrl,
2491        .vidioc_streamon               = vidioc_streamon,
2492        .vidioc_streamoff              = vidioc_streamoff,
2493        .vidioc_g_tuner                = vidioc_g_tuner,
2494        .vidioc_s_tuner                = vidioc_s_tuner,
2495        .vidioc_g_frequency            = vidioc_g_frequency,
2496        .vidioc_s_frequency            = vidioc_s_frequency,
2497#ifdef CONFIG_VIDEO_ADV_DEBUG
2498        .vidioc_g_register             = vidioc_g_register,
2499        .vidioc_s_register             = vidioc_s_register,
2500#endif
2501};
2502
2503static struct video_device cx231xx_vbi_template;
2504
2505static const struct video_device cx231xx_video_template = {
2506        .fops         = &cx231xx_v4l_fops,
2507        .release      = video_device_release,
2508        .ioctl_ops    = &video_ioctl_ops,
2509        .tvnorms      = V4L2_STD_ALL,
2510        .current_norm = V4L2_STD_PAL,
2511};
2512
2513static const struct v4l2_file_operations radio_fops = {
2514        .owner   = THIS_MODULE,
2515        .open   = cx231xx_v4l2_open,
2516        .release = cx231xx_v4l2_close,
2517        .ioctl   = video_ioctl2,
2518};
2519
2520static const struct v4l2_ioctl_ops radio_ioctl_ops = {
2521        .vidioc_querycap    = radio_querycap,
2522        .vidioc_g_tuner     = radio_g_tuner,
2523        .vidioc_enum_input  = radio_enum_input,
2524        .vidioc_g_audio     = radio_g_audio,
2525        .vidioc_s_tuner     = radio_s_tuner,
2526        .vidioc_s_audio     = radio_s_audio,
2527        .vidioc_s_input     = radio_s_input,
2528        .vidioc_queryctrl   = radio_queryctrl,
2529        .vidioc_g_ctrl      = vidioc_g_ctrl,
2530        .vidioc_s_ctrl      = vidioc_s_ctrl,
2531        .vidioc_g_frequency = vidioc_g_frequency,
2532        .vidioc_s_frequency = vidioc_s_frequency,
2533#ifdef CONFIG_VIDEO_ADV_DEBUG
2534        .vidioc_g_register  = vidioc_g_register,
2535        .vidioc_s_register  = vidioc_s_register,
2536#endif
2537};
2538
2539static struct video_device cx231xx_radio_template = {
2540        .name      = "cx231xx-radio",
2541        .fops      = &radio_fops,
2542        .ioctl_ops = &radio_ioctl_ops,
2543};
2544
2545/******************************** usb interface ******************************/
2546
2547static struct video_device *cx231xx_vdev_init(struct cx231xx *dev,
2548                const struct video_device
2549                *template, const char *type_name)
2550{
2551        struct video_device *vfd;
2552
2553        vfd = video_device_alloc();
2554        if (NULL == vfd)
2555                return NULL;
2556
2557        *vfd = *template;
2558        vfd->v4l2_dev = &dev->v4l2_dev;
2559        vfd->release = video_device_release;
2560        vfd->debug = video_debug;
2561        vfd->lock = &dev->lock;
2562
2563        snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
2564
2565        video_set_drvdata(vfd, dev);
2566        return vfd;
2567}
2568
2569int cx231xx_register_analog_devices(struct cx231xx *dev)
2570{
2571        int ret;
2572
2573        cx231xx_info("%s: v4l2 driver version %d.%d.%d\n",
2574                     dev->name,
2575                     (CX231XX_VERSION_CODE >> 16) & 0xff,
2576                     (CX231XX_VERSION_CODE >> 8) & 0xff,
2577                     CX231XX_VERSION_CODE & 0xff);
2578
2579        /* set default norm */
2580        /*dev->norm = cx231xx_video_template.current_norm; */
2581        dev->width = norm_maxw(dev);
2582        dev->height = norm_maxh(dev);
2583        dev->interlaced = 0;
2584
2585        /* Analog specific initialization */
2586        dev->format = &format[0];
2587
2588        /* Set the initial input */
2589        video_mux(dev, dev->video_input);
2590
2591        /* Audio defaults */
2592        dev->mute = 1;
2593        dev->volume = 0x1f;
2594
2595        /* enable vbi capturing */
2596        /* write code here...  */
2597
2598        /* allocate and fill video video_device struct */
2599        dev->vdev = cx231xx_vdev_init(dev, &cx231xx_video_template, "video");
2600        if (!dev->vdev) {
2601                cx231xx_errdev("cannot allocate video_device.\n");
2602                return -ENODEV;
2603        }
2604
2605        /* register v4l2 video video_device */
2606        ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
2607                                    video_nr[dev->devno]);
2608        if (ret) {
2609                cx231xx_errdev("unable to register video device (error=%i).\n",
2610                               ret);
2611                return ret;
2612        }
2613
2614        cx231xx_info("%s/0: registered device %s [v4l2]\n",
2615                     dev->name, video_device_node_name(dev->vdev));
2616
2617        /* Initialize VBI template */
2618        memcpy(&cx231xx_vbi_template, &cx231xx_video_template,
2619               sizeof(cx231xx_vbi_template));
2620        strcpy(cx231xx_vbi_template.name, "cx231xx-vbi");
2621
2622        /* Allocate and fill vbi video_device struct */
2623        dev->vbi_dev = cx231xx_vdev_init(dev, &cx231xx_vbi_template, "vbi");
2624
2625        /* register v4l2 vbi video_device */
2626        ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
2627                                    vbi_nr[dev->devno]);
2628        if (ret < 0) {
2629                cx231xx_errdev("unable to register vbi device\n");
2630                return ret;
2631        }
2632
2633        cx231xx_info("%s/0: registered device %s\n",
2634                     dev->name, video_device_node_name(dev->vbi_dev));
2635
2636        if (cx231xx_boards[dev->model].radio.type == CX231XX_RADIO) {
2637                dev->radio_dev = cx231xx_vdev_init(dev, &cx231xx_radio_template,
2638                                                   "radio");
2639                if (!dev->radio_dev) {
2640                        cx231xx_errdev("cannot allocate video_device.\n");
2641                        return -ENODEV;
2642                }
2643                ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
2644                                            radio_nr[dev->devno]);
2645                if (ret < 0) {
2646                        cx231xx_errdev("can't register radio device\n");
2647                        return ret;
2648                }
2649                cx231xx_info("Registered radio device as %s\n",
2650                             video_device_node_name(dev->radio_dev));
2651        }
2652
2653        cx231xx_info("V4L2 device registered as %s and %s\n",
2654                     video_device_node_name(dev->vdev),
2655                     video_device_node_name(dev->vbi_dev));
2656
2657        return 0;
2658}
2659