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

   1 /*
   2    cx231xx-cards.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
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  */
  22
  23 #include <linux/init.h>
  24 #include <linux/module.h>
  25 #include <linux/slab.h>
  26 #include <linux/delay.h>
  27 #include <linux/i2c.h>
  28 #include <linux/usb.h>
  29 #include <media/tuner.h>
  30 #include <media/tveeprom.h>
  31 #include <media/v4l2-common.h>
  32 #include <media/v4l2-chip-ident.h>
  33
  34 #include <media/cx25840.h>
  35 #include "dvb-usb-ids.h"
  36 #include "xc5000.h"
  37
  38 #include "cx231xx.h"
  39
  40 static int tuner = -1;
  41 module_param(tuner, int, 0444);
  42 MODULE_PARM_DESC(tuner, "tuner type");
  43
  44 static int transfer_mode = 1;
  45 module_param(transfer_mode, int, 0444);
  46 MODULE_PARM_DESC(transfer_mode, "transfer mode (1-ISO or 0-BULK)");
  47
  48 static unsigned int disable_ir;
  49 module_param(disable_ir, int, 0444);
  50 MODULE_PARM_DESC(disable_ir, "disable infrared remote support");
  51
  52 /* Bitmask marking allocated devices from 0 to CX231XX_MAXBOARDS */
  53 static unsigned long cx231xx_devused;
  54
  55 /*
  56  *  Reset sequences for analog/digital modes
  57  */
  58
  59 static struct cx231xx_reg_seq RDE250_XCV_TUNER[] = {
  60         {0x03, 0x01, 10},
  61         {0x03, 0x00, 30},
  62         {0x03, 0x01, 10},
  63         {-1, -1, -1},
  64 };
  65
  66 /*
  67  *  Board definitions
  68  */
  69 struct cx231xx_board cx231xx_boards[] = {
  70         [CX231XX_BOARD_UNKNOWN] = {
  71                 .name = "Unknown CX231xx video grabber",
  72                 .tuner_type = TUNER_ABSENT,
  73                 .input = {{
  74                                 .type = CX231XX_VMUX_TELEVISION,
  75                                 .vmux = CX231XX_VIN_3_1,
  76                                 .amux = CX231XX_AMUX_VIDEO,
  77                                 .gpio = NULL,
  78                         }, {
  79                                 .type = CX231XX_VMUX_COMPOSITE1,
  80                                 .vmux = CX231XX_VIN_2_1,
  81                                 .amux = CX231XX_AMUX_LINE_IN,
  82                                 .gpio = NULL,
  83                         }, {
  84                                 .type = CX231XX_VMUX_SVIDEO,
  85                                 .vmux = CX231XX_VIN_1_1 |
  86                                         (CX231XX_VIN_1_2 << 8) |
  87                                         CX25840_SVIDEO_ON,
  88                                 .amux = CX231XX_AMUX_LINE_IN,
  89                                 .gpio = NULL,
  90                         }
  91                 },
  92         },
  93         [CX231XX_BOARD_CNXT_CARRAERA] = {
  94                 .name = "Conexant Hybrid TV - CARRAERA",
  95                 .tuner_type = TUNER_XC5000,
  96                 .tuner_addr = 0x61,
  97                 .tuner_gpio = RDE250_XCV_TUNER,
  98                 .tuner_sif_gpio = 0x05,
  99                 .tuner_scl_gpio = 0x1a,
 100                 .tuner_sda_gpio = 0x1b,
 101                 .decoder = CX231XX_AVDECODER,
 102                 .demod_xfer_mode = 0,
 103                 .ctl_pin_status_mask = 0xFFFFFFC4,
 104                 .agc_analog_digital_select_gpio = 0x0c,
 105                 .gpio_pin_status_mask = 0x4001000,
 106                 .tuner_i2c_master = 1,
 107                 .demod_i2c_master = 2,
 108                 .has_dvb = 1,
 109                 .demod_addr = 0x02,
 110                 .norm = V4L2_STD_PAL,
 111
 112                 .input = {{
 113                                 .type = CX231XX_VMUX_TELEVISION,
 114                                 .vmux = CX231XX_VIN_3_1,
 115                                 .amux = CX231XX_AMUX_VIDEO,
 116                                 .gpio = NULL,
 117                         }, {
 118                                 .type = CX231XX_VMUX_COMPOSITE1,
 119                                 .vmux = CX231XX_VIN_2_1,
 120                                 .amux = CX231XX_AMUX_LINE_IN,
 121                                 .gpio = NULL,
 122                         }, {
 123                                 .type = CX231XX_VMUX_SVIDEO,
 124                                 .vmux = CX231XX_VIN_1_1 |
 125                                         (CX231XX_VIN_1_2 << 8) |
 126                                         CX25840_SVIDEO_ON,
 127                                 .amux = CX231XX_AMUX_LINE_IN,
 128                                 .gpio = NULL,
 129                         }
 130                 },
 131         },
 132         [CX231XX_BOARD_CNXT_SHELBY] = {
 133                 .name = "Conexant Hybrid TV - SHELBY",
 134                 .tuner_type = TUNER_XC5000,
 135                 .tuner_addr = 0x61,
 136                 .tuner_gpio = RDE250_XCV_TUNER,
 137                 .tuner_sif_gpio = 0x05,
 138                 .tuner_scl_gpio = 0x1a,
 139                 .tuner_sda_gpio = 0x1b,
 140                 .decoder = CX231XX_AVDECODER,
 141                 .demod_xfer_mode = 0,
 142                 .ctl_pin_status_mask = 0xFFFFFFC4,
 143                 .agc_analog_digital_select_gpio = 0x0c,
 144                 .gpio_pin_status_mask = 0x4001000,
 145                 .tuner_i2c_master = 1,
 146                 .demod_i2c_master = 2,
 147                 .has_dvb = 1,
 148                 .demod_addr = 0x32,
 149                 .norm = V4L2_STD_NTSC,
 150
 151                 .input = {{
 152                                 .type = CX231XX_VMUX_TELEVISION,
 153                                 .vmux = CX231XX_VIN_3_1,
 154                                 .amux = CX231XX_AMUX_VIDEO,
 155                                 .gpio = NULL,
 156                         }, {
 157                                 .type = CX231XX_VMUX_COMPOSITE1,
 158                                 .vmux = CX231XX_VIN_2_1,
 159                                 .amux = CX231XX_AMUX_LINE_IN,
 160                                 .gpio = NULL,
 161                         }, {
 162                                 .type = CX231XX_VMUX_SVIDEO,
 163                                 .vmux = CX231XX_VIN_1_1 |
 164                                         (CX231XX_VIN_1_2 << 8) |
 165                                         CX25840_SVIDEO_ON,
 166                                 .amux = CX231XX_AMUX_LINE_IN,
 167                                 .gpio = NULL,
 168                         }
 169                 },
 170         },
 171         [CX231XX_BOARD_CNXT_RDE_253S] = {
 172                 .name = "Conexant Hybrid TV - RDE253S",
 173                 .tuner_type = TUNER_NXP_TDA18271,
 174                 .tuner_addr = 0x60,
 175                 .tuner_gpio = RDE250_XCV_TUNER,
 176                 .tuner_sif_gpio = 0x05,
 177                 .tuner_scl_gpio = 0x1a,
 178                 .tuner_sda_gpio = 0x1b,
 179                 .decoder = CX231XX_AVDECODER,
 180                 .demod_xfer_mode = 0,
 181                 .ctl_pin_status_mask = 0xFFFFFFC4,
 182                 .agc_analog_digital_select_gpio = 0x1c,
 183                 .gpio_pin_status_mask = 0x4001000,
 184                 .tuner_i2c_master = 1,
 185                 .demod_i2c_master = 2,
 186                 .has_dvb = 1,
 187                 .demod_addr = 0x02,
 188                 .norm = V4L2_STD_PAL,
 189
 190                 .input = {{
 191                                 .type = CX231XX_VMUX_TELEVISION,
 192                                 .vmux = CX231XX_VIN_3_1,
 193                                 .amux = CX231XX_AMUX_VIDEO,
 194                                 .gpio = NULL,
 195                         }, {
 196                                 .type = CX231XX_VMUX_COMPOSITE1,
 197                                 .vmux = CX231XX_VIN_2_1,
 198                                 .amux = CX231XX_AMUX_LINE_IN,
 199                                 .gpio = NULL,
 200                         }, {
 201                                 .type = CX231XX_VMUX_SVIDEO,
 202                                 .vmux = CX231XX_VIN_1_1 |
 203                                         (CX231XX_VIN_1_2 << 8) |
 204                                         CX25840_SVIDEO_ON,
 205                                 .amux = CX231XX_AMUX_LINE_IN,
 206                                 .gpio = NULL,
 207                         }
 208                 },
 209         },
 210
 211         [CX231XX_BOARD_CNXT_RDU_253S] = {
 212                 .name = "Conexant Hybrid TV - RDU253S",
 213                 .tuner_type = TUNER_NXP_TDA18271,
 214                 .tuner_addr = 0x60,
 215                 .tuner_gpio = RDE250_XCV_TUNER,
 216                 .tuner_sif_gpio = 0x05,
 217                 .tuner_scl_gpio = 0x1a,
 218                 .tuner_sda_gpio = 0x1b,
 219                 .decoder = CX231XX_AVDECODER,
 220                 .demod_xfer_mode = 0,
 221                 .ctl_pin_status_mask = 0xFFFFFFC4,
 222                 .agc_analog_digital_select_gpio = 0x1c,
 223                 .gpio_pin_status_mask = 0x4001000,
 224                 .tuner_i2c_master = 1,
 225                 .demod_i2c_master = 2,
 226                 .has_dvb = 1,
 227                 .demod_addr = 0x02,
 228                 .norm = V4L2_STD_PAL,
 229
 230                 .input = {{
 231                                 .type = CX231XX_VMUX_TELEVISION,
 232                                 .vmux = CX231XX_VIN_3_1,
 233                                 .amux = CX231XX_AMUX_VIDEO,
 234                                 .gpio = NULL,
 235                         }, {
 236                                 .type = CX231XX_VMUX_COMPOSITE1,
 237                                 .vmux = CX231XX_VIN_2_1,
 238                                 .amux = CX231XX_AMUX_LINE_IN,
 239                                 .gpio = NULL,
 240                         }, {
 241                                 .type = CX231XX_VMUX_SVIDEO,
 242                                 .vmux = CX231XX_VIN_1_1 |
 243                                         (CX231XX_VIN_1_2 << 8) |
 244                                         CX25840_SVIDEO_ON,
 245                                 .amux = CX231XX_AMUX_LINE_IN,
 246                                 .gpio = NULL,
 247                         }
 248                 },
 249         },
 250         [CX231XX_BOARD_CNXT_VIDEO_GRABBER] = {
 251                 .name = "Conexant VIDEO GRABBER",
 252                 .tuner_type = TUNER_NXP_TDA18271,
 253                 .tuner_addr = 0x60,
 254                 .tuner_gpio = RDE250_XCV_TUNER,
 255                 .tuner_sif_gpio = 0x05,
 256                 .tuner_scl_gpio = 0x1a,
 257                 .tuner_sda_gpio = 0x1b,
 258                 .decoder = CX231XX_AVDECODER,
 259                 .demod_xfer_mode = 0,
 260                 .ctl_pin_status_mask = 0xFFFFFFC4,
 261                 .agc_analog_digital_select_gpio = 0x1c,
 262                 .gpio_pin_status_mask = 0x4001000,
 263                 .tuner_i2c_master = 1,
 264                 .demod_i2c_master = 2,
 265                 .has_dvb = 0,
 266                 .demod_addr = 0x02,
 267                 .norm = V4L2_STD_PAL,
 268
 269                 .input = {{
 270                                 .type = CX231XX_VMUX_COMPOSITE1,
 271                                 .vmux = CX231XX_VIN_2_1,
 272                                 .amux = CX231XX_AMUX_LINE_IN,
 273                                 .gpio = NULL,
 274                         }, {
 275                                 .type = CX231XX_VMUX_SVIDEO,
 276                                 .vmux = CX231XX_VIN_1_1 |
 277                                         (CX231XX_VIN_1_2 << 8) |
 278                                         CX25840_SVIDEO_ON,
 279                                 .amux = CX231XX_AMUX_LINE_IN,
 280                                 .gpio = NULL,
 281                         }, {
 282                                 .type = CX231XX_VMUX_TELEVISION,
 283                                 .vmux = CX231XX_VIN_3_1,
 284                                 .amux = CX231XX_AMUX_VIDEO,
 285                                 .gpio = NULL,
 286                         }
 287                 },
 288         },
 289         [CX231XX_BOARD_CNXT_RDE_250] = {
 290                 .name = "Conexant Hybrid TV - rde 250",
 291                 .tuner_type = TUNER_XC5000,
 292                 .tuner_addr = 0x61,
 293                 .tuner_gpio = RDE250_XCV_TUNER,
 294                 .tuner_sif_gpio = 0x05,
 295                 .tuner_scl_gpio = 0x1a,
 296                 .tuner_sda_gpio = 0x1b,
 297                 .decoder = CX231XX_AVDECODER,
 298                 .demod_xfer_mode = 0,
 299                 .ctl_pin_status_mask = 0xFFFFFFC4,
 300                 .agc_analog_digital_select_gpio = 0x0c,
 301                 .gpio_pin_status_mask = 0x4001000,
 302                 .tuner_i2c_master = 1,
 303                 .demod_i2c_master = 2,
 304                 .has_dvb = 1,
 305                 .demod_addr = 0x02,
 306                 .norm = V4L2_STD_PAL,
 307
 308                 .input = {{
 309                                 .type = CX231XX_VMUX_TELEVISION,
 310                                 .vmux = CX231XX_VIN_2_1,
 311                                 .amux = CX231XX_AMUX_VIDEO,
 312                                 .gpio = NULL,
 313                         }
 314                 },
 315         },
 316         [CX231XX_BOARD_CNXT_RDU_250] = {
 317                 .name = "Conexant Hybrid TV - RDU 250",
 318                 .tuner_type = TUNER_XC5000,
 319                 .tuner_addr = 0x61,
 320                 .tuner_gpio = RDE250_XCV_TUNER,
 321                 .tuner_sif_gpio = 0x05,
 322                 .tuner_scl_gpio = 0x1a,
 323                 .tuner_sda_gpio = 0x1b,
 324                 .decoder = CX231XX_AVDECODER,
 325                 .demod_xfer_mode = 0,
 326                 .ctl_pin_status_mask = 0xFFFFFFC4,
 327                 .agc_analog_digital_select_gpio = 0x0c,
 328                 .gpio_pin_status_mask = 0x4001000,
 329                 .tuner_i2c_master = 1,
 330                 .demod_i2c_master = 2,
 331                 .has_dvb = 1,
 332                 .demod_addr = 0x32,
 333                 .norm = V4L2_STD_NTSC,
 334
 335                 .input = {{
 336                                 .type = CX231XX_VMUX_TELEVISION,
 337                                 .vmux = CX231XX_VIN_2_1,
 338                                 .amux = CX231XX_AMUX_VIDEO,
 339                                 .gpio = NULL,
 340                         }
 341                 },
 342         },
 343         [CX231XX_BOARD_HAUPPAUGE_EXETER] = {
 344                 .name = "Hauppauge EXETER",
 345                 .tuner_type = TUNER_NXP_TDA18271,
 346                 .tuner_addr = 0x60,
 347                 .tuner_gpio = RDE250_XCV_TUNER,
 348                 .tuner_sif_gpio = 0x05,
 349                 .tuner_scl_gpio = 0x1a,
 350                 .tuner_sda_gpio = 0x1b,
 351                 .decoder = CX231XX_AVDECODER,
 352                 .demod_xfer_mode = 0,
 353                 .ctl_pin_status_mask = 0xFFFFFFC4,
 354                 .agc_analog_digital_select_gpio = 0x0c,
 355                 .gpio_pin_status_mask = 0x4001000,
 356                 .tuner_i2c_master = 1,
 357                 .demod_i2c_master = 2,
 358                 .has_dvb = 1,
 359                 .demod_addr = 0x0e,
 360                 .norm = V4L2_STD_NTSC,
 361
 362                 .input = {{
 363                         .type = CX231XX_VMUX_TELEVISION,
 364                         .vmux = CX231XX_VIN_3_1,
 365                         .amux = CX231XX_AMUX_VIDEO,
 366                         .gpio = 0,
 367                 }, {
 368                         .type = CX231XX_VMUX_COMPOSITE1,
 369                         .vmux = CX231XX_VIN_2_1,
 370                         .amux = CX231XX_AMUX_LINE_IN,
 371                         .gpio = 0,
 372                 }, {
 373                         .type = CX231XX_VMUX_SVIDEO,
 374                         .vmux = CX231XX_VIN_1_1 |
 375                                 (CX231XX_VIN_1_2 << 8) |
 376                                 CX25840_SVIDEO_ON,
 377                         .amux = CX231XX_AMUX_LINE_IN,
 378                         .gpio = 0,
 379                 } },
 380         },
 381
 382
 383
 384
 385
 386 };
 387 const unsigned int cx231xx_bcount = ARRAY_SIZE(cx231xx_boards);
 388
 389 /* table of devices that work with this driver */
 390 struct usb_device_id cx231xx_id_table[] = {
 391         {USB_DEVICE(0x0572, 0x5A3C),
 392          .driver_info = CX231XX_BOARD_UNKNOWN},
 393         {USB_DEVICE_VER(USB_VID_PIXELVIEW, USB_PID_PIXELVIEW_SBTVD, 0x4000,0x4fff),
 394          .driver_info = CX231XX_BOARD_UNKNOWN},
 395         {USB_DEVICE(0x0572, 0x58A2),
 396          .driver_info = CX231XX_BOARD_CNXT_CARRAERA},
 397         {USB_DEVICE(0x0572, 0x58A1),
 398          .driver_info = CX231XX_BOARD_CNXT_SHELBY},
 399         {USB_DEVICE(0x0572, 0x58A4),
 400          .driver_info = CX231XX_BOARD_CNXT_RDE_253S},
 401         {USB_DEVICE(0x0572, 0x58A5),
 402          .driver_info = CX231XX_BOARD_CNXT_RDU_253S},
 403         {USB_DEVICE(0x0572, 0x58A6),
 404          .driver_info = CX231XX_BOARD_CNXT_VIDEO_GRABBER},
 405         {USB_DEVICE(0x0572, 0x589E),
 406          .driver_info = CX231XX_BOARD_CNXT_RDE_250},
 407         {USB_DEVICE(0x0572, 0x58A0),
 408          .driver_info = CX231XX_BOARD_CNXT_RDU_250},
 409         {USB_DEVICE(0x2040, 0xb120),
 410          .driver_info = CX231XX_BOARD_HAUPPAUGE_EXETER},
 411         {USB_DEVICE(0x2040, 0xb140),
 412          .driver_info = CX231XX_BOARD_HAUPPAUGE_EXETER},
 413         {},
 414 };
 415
 416 MODULE_DEVICE_TABLE(usb, cx231xx_id_table);
 417
 418 /* cx231xx_tuner_callback
 419  * will be used to reset XC5000 tuner using GPIO pin
 420  */
 421
 422 int cx231xx_tuner_callback(void *ptr, int component, int command, int arg)
 423 {
 424         int rc = 0;
 425         struct cx231xx *dev = ptr;
 426
 427         if (dev->tuner_type == TUNER_XC5000) {
 428                 if (command == XC5000_TUNER_RESET) {
 429                         cx231xx_info
 430                                 ("Tuner CB: RESET: cmd %d : tuner type %d \n",
 431                                  command, dev->tuner_type);
 432                         cx231xx_set_gpio_value(dev, dev->board.tuner_gpio->bit,
 433                                                1);
 434                         msleep(10);
 435                         cx231xx_set_gpio_value(dev, dev->board.tuner_gpio->bit,
 436                                                0);
 437                         msleep(330);
 438                         cx231xx_set_gpio_value(dev, dev->board.tuner_gpio->bit,
 439                                                1);
 440                         msleep(10);
 441                 }
 442         }
 443         return rc;
 444 }
 445 EXPORT_SYMBOL_GPL(cx231xx_tuner_callback);
 446
 447 void cx231xx_reset_out(struct cx231xx *dev)
 448 {
 449         cx231xx_set_gpio_value(dev, CX23417_RESET, 1);
 450         msleep(200);
 451         cx231xx_set_gpio_value(dev, CX23417_RESET, 0);
 452         msleep(200);
 453         cx231xx_set_gpio_value(dev, CX23417_RESET, 1);
 454 }
 455 void cx231xx_enable_OSC(struct cx231xx *dev)
 456 {
 457         cx231xx_set_gpio_value(dev, CX23417_OSC_EN, 1);
 458 }
 459 void cx231xx_sleep_s5h1432(struct cx231xx *dev)
 460 {
 461         cx231xx_set_gpio_value(dev, SLEEP_S5H1432, 0);
 462 }
 463
 464 static inline void cx231xx_set_model(struct cx231xx *dev)
 465 {
 466         memcpy(&dev->board, &cx231xx_boards[dev->model], sizeof(dev->board));
 467 }
 468
 469 /* Since cx231xx_pre_card_setup() requires a proper dev->model,
 470  * this won't work for boards with generic PCI IDs
 471  */
 472 void cx231xx_pre_card_setup(struct cx231xx *dev)
 473 {
 474
 475         cx231xx_set_model(dev);
 476
 477         cx231xx_info("Identified as %s (card=%d)\n",
 478                      dev->board.name, dev->model);
 479
 480         /* set the direction for GPIO pins */
 481         if (dev->board.tuner_gpio) {
 482                 cx231xx_set_gpio_direction(dev, dev->board.tuner_gpio->bit, 1);
 483                 cx231xx_set_gpio_value(dev, dev->board.tuner_gpio->bit, 1);
 484                 cx231xx_set_gpio_direction(dev, dev->board.tuner_sif_gpio, 1);
 485
 486                 /* request some modules if any required */
 487         }
 488
 489         /* set the mode to Analog mode initially */
 490         cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
 491
 492         /* Unlock device */
 493         /* cx231xx_set_mode(dev, CX231XX_SUSPEND); */
 494
 495 }
 496
 497 static void cx231xx_config_tuner(struct cx231xx *dev)
 498 {
 499         struct tuner_setup tun_setup;
 500         struct v4l2_frequency f;
 501
 502         if (dev->tuner_type == TUNER_ABSENT)
 503                 return;
 504
 505         tun_setup.mode_mask = T_ANALOG_TV | T_RADIO;
 506         tun_setup.type = dev->tuner_type;
 507         tun_setup.addr = dev->tuner_addr;
 508         tun_setup.tuner_callback = cx231xx_tuner_callback;
 509
 510         tuner_call(dev, tuner, s_type_addr, &tun_setup);
 511
 512 #if 0
 513         if (tun_setup.type == TUNER_XC5000) {
 514                 static struct xc2028_ctrl ctrl = {
 515                         .fname = XC5000_DEFAULT_FIRMWARE,
 516                         .max_len = 64,
 517                         .demod = 0;
 518                 };
 519                 struct v4l2_priv_tun_config cfg = {
 520                         .tuner = dev->tuner_type,
 521                         .priv = &ctrl,
 522                 };
 523                 tuner_call(dev, tuner, s_config, &cfg);
 524         }
 525 #endif
 526         /* configure tuner */
 527         f.tuner = 0;
 528         f.type = V4L2_TUNER_ANALOG_TV;
 529         f.frequency = 9076;     /* just a magic number */
 530         dev->ctl_freq = f.frequency;
 531         call_all(dev, tuner, s_frequency, &f);
 532
 533 }
 534
 535 /* ----------------------------------------------------------------------- */
 536 void cx231xx_register_i2c_ir(struct cx231xx *dev)
 537 {
 538         if (disable_ir)
 539                 return;
 540
 541         /* REVISIT: instantiate IR device */
 542
 543         /* detect & configure */
 544         switch (dev->model) {
 545
 546         case CX231XX_BOARD_CNXT_CARRAERA:
 547                 break;
 548         case CX231XX_BOARD_CNXT_RDE_250:
 549                 break;
 550         case CX231XX_BOARD_CNXT_SHELBY:
 551                 break;
 552         case CX231XX_BOARD_CNXT_RDU_250:
 553                 break;
 554         case CX231XX_BOARD_CNXT_RDE_253S:
 555                 break;
 556         case CX231XX_BOARD_CNXT_RDU_253S:
 557                 break;
 558         case CX231XX_BOARD_CNXT_VIDEO_GRABBER:
 559                 break;
 560         case CX231XX_BOARD_HAUPPAUGE_EXETER:
 561                 break;
 562         default:
 563                 break;
 564         }
 565 }
 566
 567 void cx231xx_card_setup(struct cx231xx *dev)
 568 {
 569
 570         cx231xx_set_model(dev);
 571
 572         dev->tuner_type = cx231xx_boards[dev->model].tuner_type;
 573         if (cx231xx_boards[dev->model].tuner_addr)
 574                 dev->tuner_addr = cx231xx_boards[dev->model].tuner_addr;
 575
 576         /* request some modules */
 577         if (dev->board.decoder == CX231XX_AVDECODER) {
 578                 dev->sd_cx25840 = v4l2_i2c_new_subdev(&dev->v4l2_dev,
 579                                         &dev->i2c_bus[0].i2c_adap,
 580                                         "cx25840", "cx25840", 0x88 >> 1, NULL);
 581                 if (dev->sd_cx25840 == NULL)
 582                         cx231xx_info("cx25840 subdev registration failure\n");
 583                 cx25840_call(dev, core, load_fw);
 584
 585         }
 586
 587         /* Initialize the tuner */
 588         if (dev->board.tuner_type != TUNER_ABSENT) {
 589                 dev->sd_tuner = v4l2_i2c_new_subdev(&dev->v4l2_dev,
 590                                                     &dev->i2c_bus[1].i2c_adap,
 591                                                     "tuner", "tuner",
 592                                                     dev->tuner_addr, NULL);
 593                 if (dev->sd_tuner == NULL)
 594                         cx231xx_info("tuner subdev registration failure\n");
 595                 else
 596                         cx231xx_config_tuner(dev);
 597         }
 598
 599 #if 0
 600         /* TBD  IR will be added later */
 601         cx231xx_ir_init(dev);
 602 #endif
 603 }
 604
 605 /*
 606  * cx231xx_config()
 607  * inits registers with sane defaults
 608  */
 609 int cx231xx_config(struct cx231xx *dev)
 610 {
 611         /* TBD need to add cx231xx specific code */
 612         dev->mute = 1;          /* maybe not the right place... */
 613         dev->volume = 0x1f;
 614
 615         return 0;
 616 }
 617
 618 /*
 619  * cx231xx_config_i2c()
 620  * configure i2c attached devices
 621  */
 622 void cx231xx_config_i2c(struct cx231xx *dev)
 623 {
 624         /* u32 input = INPUT(dev->video_input)->vmux; */
 625
 626         call_all(dev, video, s_stream, 1);
 627 }
 628
 629 /*
 630  * cx231xx_realease_resources()
 631  * unregisters the v4l2,i2c and usb devices
 632  * called when the device gets disconected or at module unload
 633 */
 634 void cx231xx_release_resources(struct cx231xx *dev)
 635 {
 636
 637 #if 0           /* TBD IR related  */
 638         if (dev->ir)
 639                 cx231xx_ir_fini(dev);
 640 #endif
 641
 642         cx231xx_release_analog_resources(dev);
 643
 644         cx231xx_remove_from_devlist(dev);
 645
 646         cx231xx_dev_uninit(dev);
 647
 648         usb_put_dev(dev->udev);
 649
 650         /* Mark device as unused */
 651         cx231xx_devused &= ~(1 << dev->devno);
 652 }
 653
 654 /*
 655  * cx231xx_init_dev()
 656  * allocates and inits the device structs, registers i2c bus and v4l device
 657  */
 658 static int cx231xx_init_dev(struct cx231xx **devhandle, struct usb_device *udev,
 659                             int minor)
 660 {
 661         struct cx231xx *dev = *devhandle;
 662         int retval = -ENOMEM;
 663         int errCode;
 664         unsigned int maxh, maxw;
 665
 666         dev->udev = udev;
 667         mutex_init(&dev->lock);
 668         mutex_init(&dev->ctrl_urb_lock);
 669         mutex_init(&dev->gpio_i2c_lock);
 670         mutex_init(&dev->i2c_lock);
 671
 672         spin_lock_init(&dev->video_mode.slock);
 673         spin_lock_init(&dev->vbi_mode.slock);
 674         spin_lock_init(&dev->sliced_cc_mode.slock);
 675
 676         init_waitqueue_head(&dev->open);
 677         init_waitqueue_head(&dev->wait_frame);
 678         init_waitqueue_head(&dev->wait_stream);
 679
 680         dev->cx231xx_read_ctrl_reg = cx231xx_read_ctrl_reg;
 681         dev->cx231xx_write_ctrl_reg = cx231xx_write_ctrl_reg;
 682         dev->cx231xx_send_usb_command = cx231xx_send_usb_command;
 683         dev->cx231xx_gpio_i2c_read = cx231xx_gpio_i2c_read;
 684         dev->cx231xx_gpio_i2c_write = cx231xx_gpio_i2c_write;
 685
 686         /* Query cx231xx to find what pcb config it is related to */
 687         initialize_cx231xx(dev);
 688
 689         /*To workaround error number=-71 on EP0 for VideoGrabber,
 690                  need set alt here.*/
 691         if (dev->model == CX231XX_BOARD_CNXT_VIDEO_GRABBER) {
 692                 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 3);
 693                 cx231xx_set_alt_setting(dev, INDEX_VANC, 1);
 694         }
 695         /* Cx231xx pre card setup */
 696         cx231xx_pre_card_setup(dev);
 697
 698         errCode = cx231xx_config(dev);
 699         if (errCode) {
 700                 cx231xx_errdev("error configuring device\n");
 701                 return -ENOMEM;
 702         }
 703
 704         /* set default norm */
 705         dev->norm = dev->board.norm;
 706
 707         /* register i2c bus */
 708         errCode = cx231xx_dev_init(dev);
 709         if (errCode < 0) {
 710                 cx231xx_dev_uninit(dev);
 711                 cx231xx_errdev("%s: cx231xx_i2c_register - errCode [%d]!\n",
 712                                __func__, errCode);
 713                 return errCode;
 714         }
 715
 716         /* Do board specific init */
 717         cx231xx_card_setup(dev);
 718
 719         /* configure the device */
 720         cx231xx_config_i2c(dev);
 721
 722         maxw = norm_maxw(dev);
 723         maxh = norm_maxh(dev);
 724
 725         /* set default image size */
 726         dev->width = maxw;
 727         dev->height = maxh;
 728         dev->interlaced = 0;
 729         dev->video_input = 0;
 730
 731         errCode = cx231xx_config(dev);
 732         if (errCode < 0) {
 733                 cx231xx_errdev("%s: cx231xx_config - errCode [%d]!\n",
 734                                __func__, errCode);
 735                 return errCode;
 736         }
 737
 738         /* init video dma queues */
 739         INIT_LIST_HEAD(&dev->video_mode.vidq.active);
 740         INIT_LIST_HEAD(&dev->video_mode.vidq.queued);
 741
 742         /* init vbi dma queues */
 743         INIT_LIST_HEAD(&dev->vbi_mode.vidq.active);
 744         INIT_LIST_HEAD(&dev->vbi_mode.vidq.queued);
 745
 746         /* Reset other chips required if they are tied up with GPIO pins */
 747         cx231xx_add_into_devlist(dev);
 748
 749         printk(KERN_INFO "attach 417 %d\n", dev->model);
 750         if (dev->model == CX231XX_BOARD_CNXT_VIDEO_GRABBER) {
 751                 if (cx231xx_417_register(dev) < 0) {
 752                         printk(KERN_ERR
 753                                 "%s() Failed to register 417 on VID_B\n",
 754                                __func__);
 755                 }
 756         }
 757
 758         retval = cx231xx_register_analog_devices(dev);
 759         if (retval < 0) {
 760                 cx231xx_release_resources(dev);
 761                 goto fail_reg_devices;
 762         }
 763
 764         cx231xx_init_extension(dev);
 765
 766         return 0;
 767
 768 fail_reg_devices:
 769         mutex_unlock(&dev->lock);
 770         return retval;
 771 }
 772
 773 #if defined(CONFIG_MODULES) && defined(MODULE)
 774 static void request_module_async(struct work_struct *work)
 775 {
 776         struct cx231xx *dev = container_of(work,
 777                                            struct cx231xx, request_module_wk);
 778
 779         if (dev->has_alsa_audio)
 780                 request_module("cx231xx-alsa");
 781
 782         if (dev->board.has_dvb)
 783                 request_module("cx231xx-dvb");
 784
 785 }
 786
 787 static void request_modules(struct cx231xx *dev)
 788 {
 789         INIT_WORK(&dev->request_module_wk, request_module_async);
 790         schedule_work(&dev->request_module_wk);
 791 }
 792 #else
 793 #define request_modules(dev)
 794 #endif /* CONFIG_MODULES */
 795
 796 /*
 797  * cx231xx_usb_probe()
 798  * checks for supported devices
 799  */
 800 static int cx231xx_usb_probe(struct usb_interface *interface,
 801                              const struct usb_device_id *id)
 802 {
 803         struct usb_device *udev;
 804         struct usb_interface *uif;
 805         struct cx231xx *dev = NULL;
 806         int retval = -ENODEV;
 807         int nr = 0, ifnum;
 808         int i, isoc_pipe = 0;
 809         char *speed;
 810         char descr[255] = "";
 811         struct usb_interface *lif = NULL;
 812         int skip_interface = 0;
 813         struct usb_interface_assoc_descriptor *assoc_desc;
 814
 815         udev = usb_get_dev(interface_to_usbdev(interface));
 816         ifnum = interface->altsetting[0].desc.bInterfaceNumber;
 817
 818         if (!ifnum) {
 819                 /*
 820                  * Interface number 0 - IR interface
 821                  */
 822                 /* Check to see next free device and mark as used */
 823                 nr = find_first_zero_bit(&cx231xx_devused, CX231XX_MAXBOARDS);
 824                 cx231xx_devused |= 1 << nr;
 825
 826                 if (nr >= CX231XX_MAXBOARDS) {
 827                         cx231xx_err(DRIVER_NAME
 828                  ": Supports only %i cx231xx boards.\n", CX231XX_MAXBOARDS);
 829                         cx231xx_devused &= ~(1 << nr);
 830                         return -ENOMEM;
 831                 }
 832
 833                 /* allocate memory for our device state and initialize it */
 834                 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 835                 if (dev == NULL) {
 836                         cx231xx_err(DRIVER_NAME ": out of memory!\n");
 837                         cx231xx_devused &= ~(1 << nr);
 838                         return -ENOMEM;
 839                 }
 840
 841                 snprintf(dev->name, 29, "cx231xx #%d", nr);
 842                 dev->devno = nr;
 843                 dev->model = id->driver_info;
 844                 dev->video_mode.alt = -1;
 845                 dev->interface_count++;
 846
 847                 /* reset gpio dir and value */
 848                 dev->gpio_dir = 0;
 849                 dev->gpio_val = 0;
 850                 dev->xc_fw_load_done = 0;
 851                 dev->has_alsa_audio = 1;
 852                 dev->power_mode = -1;
 853                 atomic_set(&dev->devlist_count, 0);
 854
 855                 /* 0 - vbi ; 1 -sliced cc mode */
 856                 dev->vbi_or_sliced_cc_mode = 0;
 857
 858                 /* get maximum no.of IAD interfaces */
 859                 assoc_desc = udev->actconfig->intf_assoc[0];
 860                 dev->max_iad_interface_count = assoc_desc->bInterfaceCount;
 861
 862                 /* init CIR module TBD */
 863
 864                 /* store the current interface */
 865                 lif = interface;
 866
 867                 /*mode_tv: digital=1 or analog=0*/
 868                 dev->mode_tv = 0;
 869
 870                 dev->USE_ISO = transfer_mode;
 871
 872                 switch (udev->speed) {
 873                 case USB_SPEED_LOW:
 874                         speed = "1.5";
 875                         break;
 876                 case USB_SPEED_UNKNOWN:
 877                 case USB_SPEED_FULL:
 878                         speed = "12";
 879                         break;
 880                 case USB_SPEED_HIGH:
 881                         speed = "480";
 882                         break;
 883                 default:
 884                         speed = "unknown";
 885                 }
 886
 887                 if (udev->manufacturer)
 888                         strlcpy(descr, udev->manufacturer, sizeof(descr));
 889
 890                 if (udev->product) {
 891                         if (*descr)
 892                                 strlcat(descr, " ", sizeof(descr));
 893                         strlcat(descr, udev->product, sizeof(descr));
 894                 }
 895                 if (*descr)
 896                         strlcat(descr, " ", sizeof(descr));
 897
 898                 cx231xx_info("New device %s@ %s Mbps "
 899                      "(%04x:%04x) with %d interfaces\n",
 900                      descr,
 901                      speed,
 902                      le16_to_cpu(udev->descriptor.idVendor),
 903                      le16_to_cpu(udev->descriptor.idProduct),
 904                      dev->max_iad_interface_count);
 905         } else {
 906                 /* Get dev structure first */
 907                 dev = usb_get_intfdata(udev->actconfig->interface[0]);
 908                 if (dev == NULL) {
 909                         cx231xx_err(DRIVER_NAME ": out of first interface!\n");
 910                         return -ENODEV;
 911                 }
 912
 913                 /* store the interface 0 back */
 914                 lif = udev->actconfig->interface[0];
 915
 916                 /* increment interface count */
 917                 dev->interface_count++;
 918
 919                 /* get device number */
 920                 nr = dev->devno;
 921
 922                 /*
 923                  * set skip interface, for all interfaces but
 924                  * interface 1 and the last one
 925                  */
 926                 if ((ifnum != 1) && ((ifnum)
 927                                      != dev->max_iad_interface_count))
 928                         skip_interface = 1;
 929
 930                 if (ifnum == 1) {
 931                         assoc_desc = udev->actconfig->intf_assoc[0];
 932                         if (assoc_desc->bFirstInterface != ifnum) {
 933                                 cx231xx_err(DRIVER_NAME ": Not found "
 934                                             "matching IAD interface\n");
 935                                 return -ENODEV;
 936                         }
 937                 }
 938         }
 939
 940         if (skip_interface)
 941                 return -ENODEV;
 942
 943         cx231xx_info("registering interface %d\n", ifnum);
 944
 945         /* save our data pointer in this interface device */
 946         usb_set_intfdata(lif, dev);
 947
 948         if ((ifnum) != dev->max_iad_interface_count)
 949                 return 0;
 950
 951         /*
 952          * AV device initialization - only done at the last interface
 953          */
 954
 955         /* Create v4l2 device */
 956         retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
 957         if (retval) {
 958                 cx231xx_errdev("v4l2_device_register failed\n");
 959                 cx231xx_devused &= ~(1 << nr);
 960                 kfree(dev);
 961                 dev = NULL;
 962                 return -EIO;
 963         }
 964         /* allocate device struct */
 965         retval = cx231xx_init_dev(&dev, udev, nr);
 966         if (retval) {
 967                 cx231xx_devused &= ~(1 << dev->devno);
 968                 v4l2_device_unregister(&dev->v4l2_dev);
 969                 kfree(dev);
 970                 dev = NULL;
 971                 usb_set_intfdata(lif, NULL);
 972
 973                 return retval;
 974         }
 975
 976         /* compute alternate max packet sizes for video */
 977         uif = udev->actconfig->interface[dev->current_pcb_config.
 978                        hs_config_info[0].interface_info.video_index + 1];
 979
 980         dev->video_mode.end_point_addr = le16_to_cpu(uif->altsetting[0].
 981                         endpoint[isoc_pipe].desc.bEndpointAddress);
 982
 983         dev->video_mode.num_alt = uif->num_altsetting;
 984         cx231xx_info("EndPoint Addr 0x%x, Alternate settings: %i\n",
 985                      dev->video_mode.end_point_addr,
 986                      dev->video_mode.num_alt);
 987         dev->video_mode.alt_max_pkt_size =
 988                 kmalloc(32 * dev->video_mode.num_alt, GFP_KERNEL);
 989
 990         if (dev->video_mode.alt_max_pkt_size == NULL) {
 991                 cx231xx_errdev("out of memory!\n");
 992                 cx231xx_devused &= ~(1 << nr);
 993                 v4l2_device_unregister(&dev->v4l2_dev);
 994                 kfree(dev);
 995                 dev = NULL;
 996                 return -ENOMEM;
 997         }
 998
 999         for (i = 0; i < dev->video_mode.num_alt; i++) {
1000                 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
1001                                 desc.wMaxPacketSize);
1002                 dev->video_mode.alt_max_pkt_size[i] =
1003                     (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
1004                 cx231xx_info("Alternate setting %i, max size= %i\n", i,
1005                              dev->video_mode.alt_max_pkt_size[i]);
1006         }
1007
1008         /* compute alternate max packet sizes for vbi */
1009         uif = udev->actconfig->interface[dev->current_pcb_config.
1010                                        hs_config_info[0].interface_info.
1011                                        vanc_index + 1];
1012
1013         dev->vbi_mode.end_point_addr =
1014             le16_to_cpu(uif->altsetting[0].endpoint[isoc_pipe].desc.
1015                         bEndpointAddress);
1016
1017         dev->vbi_mode.num_alt = uif->num_altsetting;
1018         cx231xx_info("EndPoint Addr 0x%x, Alternate settings: %i\n",
1019                      dev->vbi_mode.end_point_addr,
1020                      dev->vbi_mode.num_alt);
1021         dev->vbi_mode.alt_max_pkt_size =
1022             kmalloc(32 * dev->vbi_mode.num_alt, GFP_KERNEL);
1023
1024         if (dev->vbi_mode.alt_max_pkt_size == NULL) {
1025                 cx231xx_errdev("out of memory!\n");
1026                 cx231xx_devused &= ~(1 << nr);
1027                 v4l2_device_unregister(&dev->v4l2_dev);
1028                 kfree(dev);
1029                 dev = NULL;
1030                 return -ENOMEM;
1031         }
1032
1033         for (i = 0; i < dev->vbi_mode.num_alt; i++) {
1034                 u16 tmp =
1035                     le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
1036                                 desc.wMaxPacketSize);
1037                 dev->vbi_mode.alt_max_pkt_size[i] =
1038                     (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
1039                 cx231xx_info("Alternate setting %i, max size= %i\n", i,
1040                              dev->vbi_mode.alt_max_pkt_size[i]);
1041         }
1042
1043         /* compute alternate max packet sizes for sliced CC */
1044         uif = udev->actconfig->interface[dev->current_pcb_config.
1045                                        hs_config_info[0].interface_info.
1046                                        hanc_index + 1];
1047
1048         dev->sliced_cc_mode.end_point_addr =
1049             le16_to_cpu(uif->altsetting[0].endpoint[isoc_pipe].desc.
1050                         bEndpointAddress);
1051
1052         dev->sliced_cc_mode.num_alt = uif->num_altsetting;
1053         cx231xx_info("EndPoint Addr 0x%x, Alternate settings: %i\n",
1054                      dev->sliced_cc_mode.end_point_addr,
1055                      dev->sliced_cc_mode.num_alt);
1056         dev->sliced_cc_mode.alt_max_pkt_size =
1057                 kmalloc(32 * dev->sliced_cc_mode.num_alt, GFP_KERNEL);
1058
1059         if (dev->sliced_cc_mode.alt_max_pkt_size == NULL) {
1060                 cx231xx_errdev("out of memory!\n");
1061                 cx231xx_devused &= ~(1 << nr);
1062                 v4l2_device_unregister(&dev->v4l2_dev);
1063                 kfree(dev);
1064                 dev = NULL;
1065                 return -ENOMEM;
1066         }
1067
1068         for (i = 0; i < dev->sliced_cc_mode.num_alt; i++) {
1069                 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
1070                                 desc.wMaxPacketSize);
1071                 dev->sliced_cc_mode.alt_max_pkt_size[i] =
1072                     (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
1073                 cx231xx_info("Alternate setting %i, max size= %i\n", i,
1074                              dev->sliced_cc_mode.alt_max_pkt_size[i]);
1075         }
1076
1077         if (dev->current_pcb_config.ts1_source != 0xff) {
1078                 /* compute alternate max packet sizes for TS1 */
1079                 uif = udev->actconfig->interface[dev->current_pcb_config.
1080                                                hs_config_info[0].
1081                                                interface_info.
1082                                                ts1_index + 1];
1083
1084                 dev->ts1_mode.end_point_addr =
1085                     le16_to_cpu(uif->altsetting[0].endpoint[isoc_pipe].
1086                                 desc.bEndpointAddress);
1087
1088                 dev->ts1_mode.num_alt = uif->num_altsetting;
1089                 cx231xx_info("EndPoint Addr 0x%x, Alternate settings: %i\n",
1090                              dev->ts1_mode.end_point_addr,
1091                              dev->ts1_mode.num_alt);
1092                 dev->ts1_mode.alt_max_pkt_size =
1093                         kmalloc(32 * dev->ts1_mode.num_alt, GFP_KERNEL);
1094
1095                 if (dev->ts1_mode.alt_max_pkt_size == NULL) {
1096                         cx231xx_errdev("out of memory!\n");
1097                         cx231xx_devused &= ~(1 << nr);
1098                         v4l2_device_unregister(&dev->v4l2_dev);
1099                         kfree(dev);
1100                         dev = NULL;
1101                         return -ENOMEM;
1102                 }
1103
1104                 for (i = 0; i < dev->ts1_mode.num_alt; i++) {
1105                         u16 tmp = le16_to_cpu(uif->altsetting[i].
1106                                                 endpoint[isoc_pipe].desc.
1107                                                 wMaxPacketSize);
1108                         dev->ts1_mode.alt_max_pkt_size[i] =
1109                             (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
1110                         cx231xx_info("Alternate setting %i, max size= %i\n", i,
1111                                      dev->ts1_mode.alt_max_pkt_size[i]);
1112                 }
1113         }
1114
1115         if (dev->model == CX231XX_BOARD_CNXT_VIDEO_GRABBER) {
1116                 cx231xx_enable_OSC(dev);
1117                 cx231xx_reset_out(dev);
1118                 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 3);
1119         }
1120
1121         if (dev->model == CX231XX_BOARD_CNXT_RDE_253S)
1122                 cx231xx_sleep_s5h1432(dev);
1123
1124         /* load other modules required */
1125         request_modules(dev);
1126
1127         return 0;
1128 }
1129
1130 /*
1131  * cx231xx_usb_disconnect()
1132  * called when the device gets diconencted
1133  * video device will be unregistered on v4l2_close in case it is still open
1134  */
1135 static void cx231xx_usb_disconnect(struct usb_interface *interface)
1136 {
1137         struct cx231xx *dev;
1138
1139         dev = usb_get_intfdata(interface);
1140         usb_set_intfdata(interface, NULL);
1141
1142         if (!dev)
1143                 return;
1144
1145         if (!dev->udev)
1146                 return;
1147
1148         /* delete v4l2 device */
1149         v4l2_device_unregister(&dev->v4l2_dev);
1150
1151         /* wait until all current v4l2 io is finished then deallocate
1152            resources */
1153         mutex_lock(&dev->lock);
1154
1155         wake_up_interruptible_all(&dev->open);
1156
1157         if (dev->users) {
1158                 cx231xx_warn
1159                     ("device %s is open! Deregistration and memory "
1160                      "deallocation are deferred on close.\n",
1161                      video_device_node_name(dev->vdev));
1162
1163                 dev->state |= DEV_MISCONFIGURED;
1164                 if (dev->USE_ISO)
1165                         cx231xx_uninit_isoc(dev);
1166                 else
1167                         cx231xx_uninit_bulk(dev);
1168                 dev->state |= DEV_DISCONNECTED;
1169                 wake_up_interruptible(&dev->wait_frame);
1170                 wake_up_interruptible(&dev->wait_stream);
1171         } else {
1172                 dev->state |= DEV_DISCONNECTED;
1173                 cx231xx_release_resources(dev);
1174         }
1175
1176         cx231xx_close_extension(dev);
1177
1178         mutex_unlock(&dev->lock);
1179
1180         if (!dev->users) {
1181                 kfree(dev->video_mode.alt_max_pkt_size);
1182                 kfree(dev->vbi_mode.alt_max_pkt_size);
1183                 kfree(dev->sliced_cc_mode.alt_max_pkt_size);
1184                 kfree(dev->ts1_mode.alt_max_pkt_size);
1185                 kfree(dev);
1186                 dev = NULL;
1187         }
1188 }
1189
1190 static struct usb_driver cx231xx_usb_driver = {
1191         .name = "cx231xx",
1192         .probe = cx231xx_usb_probe,
1193         .disconnect = cx231xx_usb_disconnect,
1194         .id_table = cx231xx_id_table,
1195 };
1196
1197 static int __init cx231xx_module_init(void)
1198 {
1199         int result;
1200
1201         printk(KERN_INFO DRIVER_NAME " v4l2 driver loaded.\n");
1202
1203         /* register this driver with the USB subsystem */
1204         result = usb_register(&cx231xx_usb_driver);
1205         if (result)
1206                 cx231xx_err(DRIVER_NAME
1207                             " usb_register failed. Error number %d.\n", result);
1208
1209         return result;
1210 }
1211
1212 static void __exit cx231xx_module_exit(void)
1213 {
1214         /* deregister this driver with the USB subsystem */
1215         usb_deregister(&cx231xx_usb_driver);
1216 }
1217
1218 module_init(cx231xx_module_init);
1219 module_exit(cx231xx_module_exit);