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                 .output_mode = OUT_MODE_VIP11,
 103                 .demod_xfer_mode = 0,
 104                 .ctl_pin_status_mask = 0xFFFFFFC4,
 105                 .agc_analog_digital_select_gpio = 0x0c,
 106                 .gpio_pin_status_mask = 0x4001000,
 107                 .tuner_i2c_master = 1,
 108                 .demod_i2c_master = 2,
 109                 .has_dvb = 1,
 110                 .demod_addr = 0x02,
 111                 .norm = V4L2_STD_PAL,
 112
 113                 .input = {{
 114                                 .type = CX231XX_VMUX_TELEVISION,
 115                                 .vmux = CX231XX_VIN_3_1,
 116                                 .amux = CX231XX_AMUX_VIDEO,
 117                                 .gpio = NULL,
 118                         }, {
 119                                 .type = CX231XX_VMUX_COMPOSITE1,
 120                                 .vmux = CX231XX_VIN_2_1,
 121                                 .amux = CX231XX_AMUX_LINE_IN,
 122                                 .gpio = NULL,
 123                         }, {
 124                                 .type = CX231XX_VMUX_SVIDEO,
 125                                 .vmux = CX231XX_VIN_1_1 |
 126                                         (CX231XX_VIN_1_2 << 8) |
 127                                         CX25840_SVIDEO_ON,
 128                                 .amux = CX231XX_AMUX_LINE_IN,
 129                                 .gpio = NULL,
 130                         }
 131                 },
 132         },
 133         [CX231XX_BOARD_CNXT_SHELBY] = {
 134                 .name = "Conexant Hybrid TV - SHELBY",
 135                 .tuner_type = TUNER_XC5000,
 136                 .tuner_addr = 0x61,
 137                 .tuner_gpio = RDE250_XCV_TUNER,
 138                 .tuner_sif_gpio = 0x05,
 139                 .tuner_scl_gpio = 0x1a,
 140                 .tuner_sda_gpio = 0x1b,
 141                 .decoder = CX231XX_AVDECODER,
 142                 .output_mode = OUT_MODE_VIP11,
 143                 .demod_xfer_mode = 0,
 144                 .ctl_pin_status_mask = 0xFFFFFFC4,
 145                 .agc_analog_digital_select_gpio = 0x0c,
 146                 .gpio_pin_status_mask = 0x4001000,
 147                 .tuner_i2c_master = 1,
 148                 .demod_i2c_master = 2,
 149                 .has_dvb = 1,
 150                 .demod_addr = 0x32,
 151                 .norm = V4L2_STD_NTSC,
 152
 153                 .input = {{
 154                                 .type = CX231XX_VMUX_TELEVISION,
 155                                 .vmux = CX231XX_VIN_3_1,
 156                                 .amux = CX231XX_AMUX_VIDEO,
 157                                 .gpio = NULL,
 158                         }, {
 159                                 .type = CX231XX_VMUX_COMPOSITE1,
 160                                 .vmux = CX231XX_VIN_2_1,
 161                                 .amux = CX231XX_AMUX_LINE_IN,
 162                                 .gpio = NULL,
 163                         }, {
 164                                 .type = CX231XX_VMUX_SVIDEO,
 165                                 .vmux = CX231XX_VIN_1_1 |
 166                                         (CX231XX_VIN_1_2 << 8) |
 167                                         CX25840_SVIDEO_ON,
 168                                 .amux = CX231XX_AMUX_LINE_IN,
 169                                 .gpio = NULL,
 170                         }
 171                 },
 172         },
 173         [CX231XX_BOARD_CNXT_RDE_253S] = {
 174                 .name = "Conexant Hybrid TV - RDE253S",
 175                 .tuner_type = TUNER_NXP_TDA18271,
 176                 .tuner_addr = 0x60,
 177                 .tuner_gpio = RDE250_XCV_TUNER,
 178                 .tuner_sif_gpio = 0x05,
 179                 .tuner_scl_gpio = 0x1a,
 180                 .tuner_sda_gpio = 0x1b,
 181                 .decoder = CX231XX_AVDECODER,
 182                 .output_mode = OUT_MODE_VIP11,
 183                 .demod_xfer_mode = 0,
 184                 .ctl_pin_status_mask = 0xFFFFFFC4,
 185                 .agc_analog_digital_select_gpio = 0x1c,
 186                 .gpio_pin_status_mask = 0x4001000,
 187                 .tuner_i2c_master = 1,
 188                 .demod_i2c_master = 2,
 189                 .has_dvb = 1,
 190                 .demod_addr = 0x02,
 191                 .norm = V4L2_STD_PAL,
 192
 193                 .input = {{
 194                                 .type = CX231XX_VMUX_TELEVISION,
 195                                 .vmux = CX231XX_VIN_3_1,
 196                                 .amux = CX231XX_AMUX_VIDEO,
 197                                 .gpio = NULL,
 198                         }, {
 199                                 .type = CX231XX_VMUX_COMPOSITE1,
 200                                 .vmux = CX231XX_VIN_2_1,
 201                                 .amux = CX231XX_AMUX_LINE_IN,
 202                                 .gpio = NULL,
 203                         }, {
 204                                 .type = CX231XX_VMUX_SVIDEO,
 205                                 .vmux = CX231XX_VIN_1_1 |
 206                                         (CX231XX_VIN_1_2 << 8) |
 207                                         CX25840_SVIDEO_ON,
 208                                 .amux = CX231XX_AMUX_LINE_IN,
 209                                 .gpio = NULL,
 210                         }
 211                 },
 212         },
 213
 214         [CX231XX_BOARD_CNXT_RDU_253S] = {
 215                 .name = "Conexant Hybrid TV - RDU253S",
 216                 .tuner_type = TUNER_NXP_TDA18271,
 217                 .tuner_addr = 0x60,
 218                 .tuner_gpio = RDE250_XCV_TUNER,
 219                 .tuner_sif_gpio = 0x05,
 220                 .tuner_scl_gpio = 0x1a,
 221                 .tuner_sda_gpio = 0x1b,
 222                 .decoder = CX231XX_AVDECODER,
 223                 .output_mode = OUT_MODE_VIP11,
 224                 .demod_xfer_mode = 0,
 225                 .ctl_pin_status_mask = 0xFFFFFFC4,
 226                 .agc_analog_digital_select_gpio = 0x1c,
 227                 .gpio_pin_status_mask = 0x4001000,
 228                 .tuner_i2c_master = 1,
 229                 .demod_i2c_master = 2,
 230                 .has_dvb = 1,
 231                 .demod_addr = 0x02,
 232                 .norm = V4L2_STD_PAL,
 233
 234                 .input = {{
 235                                 .type = CX231XX_VMUX_TELEVISION,
 236                                 .vmux = CX231XX_VIN_3_1,
 237                                 .amux = CX231XX_AMUX_VIDEO,
 238                                 .gpio = NULL,
 239                         }, {
 240                                 .type = CX231XX_VMUX_COMPOSITE1,
 241                                 .vmux = CX231XX_VIN_2_1,
 242                                 .amux = CX231XX_AMUX_LINE_IN,
 243                                 .gpio = NULL,
 244                         }, {
 245                                 .type = CX231XX_VMUX_SVIDEO,
 246                                 .vmux = CX231XX_VIN_1_1 |
 247                                         (CX231XX_VIN_1_2 << 8) |
 248                                         CX25840_SVIDEO_ON,
 249                                 .amux = CX231XX_AMUX_LINE_IN,
 250                                 .gpio = NULL,
 251                         }
 252                 },
 253         },
 254         [CX231XX_BOARD_CNXT_VIDEO_GRABBER] = {
 255                 .name = "Conexant VIDEO GRABBER",
 256                 .tuner_type = TUNER_ABSENT,
 257                 .decoder = CX231XX_AVDECODER,
 258                 .output_mode = OUT_MODE_VIP11,
 259                 .ctl_pin_status_mask = 0xFFFFFFC4,
 260                 .agc_analog_digital_select_gpio = 0x1c,
 261                 .gpio_pin_status_mask = 0x4001000,
 262                 .norm = V4L2_STD_PAL,
 263
 264                 .input = {{
 265                                 .type = CX231XX_VMUX_COMPOSITE1,
 266                                 .vmux = CX231XX_VIN_2_1,
 267                                 .amux = CX231XX_AMUX_LINE_IN,
 268                                 .gpio = NULL,
 269                         }, {
 270                                 .type = CX231XX_VMUX_SVIDEO,
 271                                 .vmux = CX231XX_VIN_1_1 |
 272                                         (CX231XX_VIN_1_2 << 8) |
 273                                         CX25840_SVIDEO_ON,
 274                                 .amux = CX231XX_AMUX_LINE_IN,
 275                                 .gpio = NULL,
 276                         }
 277                 },
 278         },
 279         [CX231XX_BOARD_CNXT_RDE_250] = {
 280                 .name = "Conexant Hybrid TV - rde 250",
 281                 .tuner_type = TUNER_XC5000,
 282                 .tuner_addr = 0x61,
 283                 .tuner_gpio = RDE250_XCV_TUNER,
 284                 .tuner_sif_gpio = 0x05,
 285                 .tuner_scl_gpio = 0x1a,
 286                 .tuner_sda_gpio = 0x1b,
 287                 .decoder = CX231XX_AVDECODER,
 288                 .output_mode = OUT_MODE_VIP11,
 289                 .demod_xfer_mode = 0,
 290                 .ctl_pin_status_mask = 0xFFFFFFC4,
 291                 .agc_analog_digital_select_gpio = 0x0c,
 292                 .gpio_pin_status_mask = 0x4001000,
 293                 .tuner_i2c_master = 1,
 294                 .demod_i2c_master = 2,
 295                 .has_dvb = 1,
 296                 .demod_addr = 0x02,
 297                 .norm = V4L2_STD_PAL,
 298
 299                 .input = {{
 300                                 .type = CX231XX_VMUX_TELEVISION,
 301                                 .vmux = CX231XX_VIN_2_1,
 302                                 .amux = CX231XX_AMUX_VIDEO,
 303                                 .gpio = NULL,
 304                         }
 305                 },
 306         },
 307         [CX231XX_BOARD_CNXT_RDU_250] = {
 308                 .name = "Conexant Hybrid TV - RDU 250",
 309                 .tuner_type = TUNER_XC5000,
 310                 .tuner_addr = 0x61,
 311                 .tuner_gpio = RDE250_XCV_TUNER,
 312                 .tuner_sif_gpio = 0x05,
 313                 .tuner_scl_gpio = 0x1a,
 314                 .tuner_sda_gpio = 0x1b,
 315                 .decoder = CX231XX_AVDECODER,
 316                 .output_mode = OUT_MODE_VIP11,
 317                 .demod_xfer_mode = 0,
 318                 .ctl_pin_status_mask = 0xFFFFFFC4,
 319                 .agc_analog_digital_select_gpio = 0x0c,
 320                 .gpio_pin_status_mask = 0x4001000,
 321                 .tuner_i2c_master = 1,
 322                 .demod_i2c_master = 2,
 323                 .has_dvb = 1,
 324                 .demod_addr = 0x32,
 325                 .norm = V4L2_STD_NTSC,
 326
 327                 .input = {{
 328                                 .type = CX231XX_VMUX_TELEVISION,
 329                                 .vmux = CX231XX_VIN_2_1,
 330                                 .amux = CX231XX_AMUX_VIDEO,
 331                                 .gpio = NULL,
 332                         }
 333                 },
 334         },
 335         [CX231XX_BOARD_HAUPPAUGE_EXETER] = {
 336                 .name = "Hauppauge EXETER",
 337                 .tuner_type = TUNER_NXP_TDA18271,
 338                 .tuner_addr = 0x60,
 339                 .tuner_gpio = RDE250_XCV_TUNER,
 340                 .tuner_sif_gpio = 0x05,
 341                 .tuner_scl_gpio = 0x1a,
 342                 .tuner_sda_gpio = 0x1b,
 343                 .decoder = CX231XX_AVDECODER,
 344                 .output_mode = OUT_MODE_VIP11,
 345                 .demod_xfer_mode = 0,
 346                 .ctl_pin_status_mask = 0xFFFFFFC4,
 347                 .agc_analog_digital_select_gpio = 0x0c,
 348                 .gpio_pin_status_mask = 0x4001000,
 349                 .tuner_i2c_master = 1,
 350                 .demod_i2c_master = 2,
 351                 .has_dvb = 1,
 352                 .demod_addr = 0x0e,
 353                 .norm = V4L2_STD_NTSC,
 354
 355                 .input = {{
 356                         .type = CX231XX_VMUX_TELEVISION,
 357                         .vmux = CX231XX_VIN_3_1,
 358                         .amux = CX231XX_AMUX_VIDEO,
 359                         .gpio = 0,
 360                 }, {
 361                         .type = CX231XX_VMUX_COMPOSITE1,
 362                         .vmux = CX231XX_VIN_2_1,
 363                         .amux = CX231XX_AMUX_LINE_IN,
 364                         .gpio = 0,
 365                 }, {
 366                         .type = CX231XX_VMUX_SVIDEO,
 367                         .vmux = CX231XX_VIN_1_1 |
 368                                 (CX231XX_VIN_1_2 << 8) |
 369                                 CX25840_SVIDEO_ON,
 370                         .amux = CX231XX_AMUX_LINE_IN,
 371                         .gpio = 0,
 372                 } },
 373         },
 374         [CX231XX_BOARD_HAUPPAUGE_USBLIVE2] = {
 375                 .name = "Hauppauge USB Live 2",
 376                 .tuner_type = TUNER_ABSENT,
 377                 .decoder = CX231XX_AVDECODER,
 378                 .output_mode = OUT_MODE_VIP11,
 379                 .demod_xfer_mode = 0,
 380                 .ctl_pin_status_mask = 0xFFFFFFC4,
 381                 .agc_analog_digital_select_gpio = 0x0c,
 382                 .gpio_pin_status_mask = 0x4001000,
 383                 .norm = V4L2_STD_NTSC,
 384                 .input = {{
 385                         .type = CX231XX_VMUX_COMPOSITE1,
 386                         .vmux = CX231XX_VIN_2_1,
 387                         .amux = CX231XX_AMUX_LINE_IN,
 388                         .gpio = 0,
 389                 }, {
 390                         .type = CX231XX_VMUX_SVIDEO,
 391                         .vmux = CX231XX_VIN_1_1 |
 392                                 (CX231XX_VIN_1_2 << 8) |
 393                                 CX25840_SVIDEO_ON,
 394                         .amux = CX231XX_AMUX_LINE_IN,
 395                         .gpio = 0,
 396                 } },
 397         },
 398 };
 399 const unsigned int cx231xx_bcount = ARRAY_SIZE(cx231xx_boards);
 400
 401 /* table of devices that work with this driver */
 402 struct usb_device_id cx231xx_id_table[] = {
 403         {USB_DEVICE(0x0572, 0x5A3C),
 404          .driver_info = CX231XX_BOARD_UNKNOWN},
 405         {USB_DEVICE_VER(USB_VID_PIXELVIEW, USB_PID_PIXELVIEW_SBTVD, 0x4000,0x4fff),
 406          .driver_info = CX231XX_BOARD_UNKNOWN},
 407         {USB_DEVICE(0x0572, 0x58A2),
 408          .driver_info = CX231XX_BOARD_CNXT_CARRAERA},
 409         {USB_DEVICE(0x0572, 0x58A1),
 410          .driver_info = CX231XX_BOARD_CNXT_SHELBY},
 411         {USB_DEVICE(0x0572, 0x58A4),
 412          .driver_info = CX231XX_BOARD_CNXT_RDE_253S},
 413         {USB_DEVICE(0x0572, 0x58A5),
 414          .driver_info = CX231XX_BOARD_CNXT_RDU_253S},
 415         {USB_DEVICE(0x0572, 0x58A6),
 416          .driver_info = CX231XX_BOARD_CNXT_VIDEO_GRABBER},
 417         {USB_DEVICE(0x0572, 0x589E),
 418          .driver_info = CX231XX_BOARD_CNXT_RDE_250},
 419         {USB_DEVICE(0x0572, 0x58A0),
 420          .driver_info = CX231XX_BOARD_CNXT_RDU_250},
 421         {USB_DEVICE(0x2040, 0xb120),
 422          .driver_info = CX231XX_BOARD_HAUPPAUGE_EXETER},
 423         {USB_DEVICE(0x2040, 0xb140),
 424          .driver_info = CX231XX_BOARD_HAUPPAUGE_EXETER},
 425         {USB_DEVICE(0x2040, 0xc200),
 426          .driver_info = CX231XX_BOARD_HAUPPAUGE_USBLIVE2},
 427         {},
 428 };
 429
 430 MODULE_DEVICE_TABLE(usb, cx231xx_id_table);
 431
 432 /* cx231xx_tuner_callback
 433  * will be used to reset XC5000 tuner using GPIO pin
 434  */
 435
 436 int cx231xx_tuner_callback(void *ptr, int component, int command, int arg)
 437 {
 438         int rc = 0;
 439         struct cx231xx *dev = ptr;
 440
 441         if (dev->tuner_type == TUNER_XC5000) {
 442                 if (command == XC5000_TUNER_RESET) {
 443                         cx231xx_info
 444                                 ("Tuner CB: RESET: cmd %d : tuner type %d \n",
 445                                  command, dev->tuner_type);
 446                         cx231xx_set_gpio_value(dev, dev->board.tuner_gpio->bit,
 447                                                1);
 448                         msleep(10);
 449                         cx231xx_set_gpio_value(dev, dev->board.tuner_gpio->bit,
 450                                                0);
 451                         msleep(330);
 452                         cx231xx_set_gpio_value(dev, dev->board.tuner_gpio->bit,
 453                                                1);
 454                         msleep(10);
 455                 }
 456         }
 457         return rc;
 458 }
 459 EXPORT_SYMBOL_GPL(cx231xx_tuner_callback);
 460
 461 void cx231xx_reset_out(struct cx231xx *dev)
 462 {
 463         cx231xx_set_gpio_value(dev, CX23417_RESET, 1);
 464         msleep(200);
 465         cx231xx_set_gpio_value(dev, CX23417_RESET, 0);
 466         msleep(200);
 467         cx231xx_set_gpio_value(dev, CX23417_RESET, 1);
 468 }
 469 void cx231xx_enable_OSC(struct cx231xx *dev)
 470 {
 471         cx231xx_set_gpio_value(dev, CX23417_OSC_EN, 1);
 472 }
 473 void cx231xx_sleep_s5h1432(struct cx231xx *dev)
 474 {
 475         cx231xx_set_gpio_value(dev, SLEEP_S5H1432, 0);
 476 }
 477
 478 static inline void cx231xx_set_model(struct cx231xx *dev)
 479 {
 480         memcpy(&dev->board, &cx231xx_boards[dev->model], sizeof(dev->board));
 481 }
 482
 483 /* Since cx231xx_pre_card_setup() requires a proper dev->model,
 484  * this won't work for boards with generic PCI IDs
 485  */
 486 void cx231xx_pre_card_setup(struct cx231xx *dev)
 487 {
 488
 489         cx231xx_set_model(dev);
 490
 491         cx231xx_info("Identified as %s (card=%d)\n",
 492                      dev->board.name, dev->model);
 493
 494         /* set the direction for GPIO pins */
 495         if (dev->board.tuner_gpio) {
 496                 cx231xx_set_gpio_direction(dev, dev->board.tuner_gpio->bit, 1);
 497                 cx231xx_set_gpio_value(dev, dev->board.tuner_gpio->bit, 1);
 498         }
 499         if (dev->board.tuner_sif_gpio >= 0)
 500                 cx231xx_set_gpio_direction(dev, dev->board.tuner_sif_gpio, 1);
 501
 502         /* request some modules if any required */
 503
 504         /* set the mode to Analog mode initially */
 505         cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
 506
 507         /* Unlock device */
 508         /* cx231xx_set_mode(dev, CX231XX_SUSPEND); */
 509
 510 }
 511
 512 static void cx231xx_config_tuner(struct cx231xx *dev)
 513 {
 514         struct tuner_setup tun_setup;
 515         struct v4l2_frequency f;
 516
 517         if (dev->tuner_type == TUNER_ABSENT)
 518                 return;
 519
 520         tun_setup.mode_mask = T_ANALOG_TV | T_RADIO;
 521         tun_setup.type = dev->tuner_type;
 522         tun_setup.addr = dev->tuner_addr;
 523         tun_setup.tuner_callback = cx231xx_tuner_callback;
 524
 525         tuner_call(dev, tuner, s_type_addr, &tun_setup);
 526
 527 #if 0
 528         if (tun_setup.type == TUNER_XC5000) {
 529                 static struct xc2028_ctrl ctrl = {
 530                         .fname = XC5000_DEFAULT_FIRMWARE,
 531                         .max_len = 64,
 532                         .demod = 0;
 533                 };
 534                 struct v4l2_priv_tun_config cfg = {
 535                         .tuner = dev->tuner_type,
 536                         .priv = &ctrl,
 537                 };
 538                 tuner_call(dev, tuner, s_config, &cfg);
 539         }
 540 #endif
 541         /* configure tuner */
 542         f.tuner = 0;
 543         f.type = V4L2_TUNER_ANALOG_TV;
 544         f.frequency = 9076;     /* just a magic number */
 545         dev->ctl_freq = f.frequency;
 546         call_all(dev, tuner, s_frequency, &f);
 547
 548 }
 549
 550 void cx231xx_card_setup(struct cx231xx *dev)
 551 {
 552
 553         cx231xx_set_model(dev);
 554
 555         dev->tuner_type = cx231xx_boards[dev->model].tuner_type;
 556         if (cx231xx_boards[dev->model].tuner_addr)
 557                 dev->tuner_addr = cx231xx_boards[dev->model].tuner_addr;
 558
 559         /* request some modules */
 560         if (dev->board.decoder == CX231XX_AVDECODER) {
 561                 dev->sd_cx25840 = v4l2_i2c_new_subdev(&dev->v4l2_dev,
 562                                         &dev->i2c_bus[0].i2c_adap,
 563                                         NULL, "cx25840", 0x88 >> 1, NULL);
 564                 if (dev->sd_cx25840 == NULL)
 565                         cx231xx_info("cx25840 subdev registration failure\n");
 566                 cx25840_call(dev, core, load_fw);
 567
 568         }
 569
 570         /* Initialize the tuner */
 571         if (dev->board.tuner_type != TUNER_ABSENT) {
 572                 dev->sd_tuner = v4l2_i2c_new_subdev(&dev->v4l2_dev,
 573                                                     &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
 574                                                     NULL, "tuner",
 575                                                     dev->tuner_addr, NULL);
 576                 if (dev->sd_tuner == NULL)
 577                         cx231xx_info("tuner subdev registration failure\n");
 578                 else
 579                         cx231xx_config_tuner(dev);
 580         }
 581 }
 582
 583 /*
 584  * cx231xx_config()
 585  * inits registers with sane defaults
 586  */
 587 int cx231xx_config(struct cx231xx *dev)
 588 {
 589         /* TBD need to add cx231xx specific code */
 590         dev->mute = 1;          /* maybe not the right place... */
 591         dev->volume = 0x1f;
 592
 593         return 0;
 594 }
 595
 596 /*
 597  * cx231xx_config_i2c()
 598  * configure i2c attached devices
 599  */
 600 void cx231xx_config_i2c(struct cx231xx *dev)
 601 {
 602         /* u32 input = INPUT(dev->video_input)->vmux; */
 603
 604         call_all(dev, video, s_stream, 1);
 605 }
 606
 607 /*
 608  * cx231xx_realease_resources()
 609  * unregisters the v4l2,i2c and usb devices
 610  * called when the device gets disconected or at module unload
 611 */
 612 void cx231xx_release_resources(struct cx231xx *dev)
 613 {
 614         cx231xx_release_analog_resources(dev);
 615
 616         cx231xx_remove_from_devlist(dev);
 617
 618         cx231xx_dev_uninit(dev);
 619
 620         usb_put_dev(dev->udev);
 621
 622         /* Mark device as unused */
 623         cx231xx_devused &= ~(1 << dev->devno);
 624 }
 625
 626 /*
 627  * cx231xx_init_dev()
 628  * allocates and inits the device structs, registers i2c bus and v4l device
 629  */
 630 static int cx231xx_init_dev(struct cx231xx **devhandle, struct usb_device *udev,
 631                             int minor)
 632 {
 633         struct cx231xx *dev = *devhandle;
 634         int retval = -ENOMEM;
 635         int errCode;
 636         unsigned int maxh, maxw;
 637
 638         dev->udev = udev;
 639         mutex_init(&dev->lock);
 640         mutex_init(&dev->ctrl_urb_lock);
 641         mutex_init(&dev->gpio_i2c_lock);
 642         mutex_init(&dev->i2c_lock);
 643
 644         spin_lock_init(&dev->video_mode.slock);
 645         spin_lock_init(&dev->vbi_mode.slock);
 646         spin_lock_init(&dev->sliced_cc_mode.slock);
 647
 648         init_waitqueue_head(&dev->open);
 649         init_waitqueue_head(&dev->wait_frame);
 650         init_waitqueue_head(&dev->wait_stream);
 651
 652         dev->cx231xx_read_ctrl_reg = cx231xx_read_ctrl_reg;
 653         dev->cx231xx_write_ctrl_reg = cx231xx_write_ctrl_reg;
 654         dev->cx231xx_send_usb_command = cx231xx_send_usb_command;
 655         dev->cx231xx_gpio_i2c_read = cx231xx_gpio_i2c_read;
 656         dev->cx231xx_gpio_i2c_write = cx231xx_gpio_i2c_write;
 657
 658         /* Query cx231xx to find what pcb config it is related to */
 659         initialize_cx231xx(dev);
 660
 661         /*To workaround error number=-71 on EP0 for VideoGrabber,
 662                  need set alt here.*/
 663         if (dev->model == CX231XX_BOARD_CNXT_VIDEO_GRABBER ||
 664             dev->model == CX231XX_BOARD_HAUPPAUGE_USBLIVE2) {
 665                 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 3);
 666                 cx231xx_set_alt_setting(dev, INDEX_VANC, 1);
 667         }
 668         /* Cx231xx pre card setup */
 669         cx231xx_pre_card_setup(dev);
 670
 671         errCode = cx231xx_config(dev);
 672         if (errCode) {
 673                 cx231xx_errdev("error configuring device\n");
 674                 return -ENOMEM;
 675         }
 676
 677         /* set default norm */
 678         dev->norm = dev->board.norm;
 679
 680         /* register i2c bus */
 681         errCode = cx231xx_dev_init(dev);
 682         if (errCode < 0) {
 683                 cx231xx_dev_uninit(dev);
 684                 cx231xx_errdev("%s: cx231xx_i2c_register - errCode [%d]!\n",
 685                                __func__, errCode);
 686                 return errCode;
 687         }
 688
 689         /* Do board specific init */
 690         cx231xx_card_setup(dev);
 691
 692         /* configure the device */
 693         cx231xx_config_i2c(dev);
 694
 695         maxw = norm_maxw(dev);
 696         maxh = norm_maxh(dev);
 697
 698         /* set default image size */
 699         dev->width = maxw;
 700         dev->height = maxh;
 701         dev->interlaced = 0;
 702         dev->video_input = 0;
 703
 704         errCode = cx231xx_config(dev);
 705         if (errCode < 0) {
 706                 cx231xx_errdev("%s: cx231xx_config - errCode [%d]!\n",
 707                                __func__, errCode);
 708                 return errCode;
 709         }
 710
 711         /* init video dma queues */
 712         INIT_LIST_HEAD(&dev->video_mode.vidq.active);
 713         INIT_LIST_HEAD(&dev->video_mode.vidq.queued);
 714
 715         /* init vbi dma queues */
 716         INIT_LIST_HEAD(&dev->vbi_mode.vidq.active);
 717         INIT_LIST_HEAD(&dev->vbi_mode.vidq.queued);
 718
 719         /* Reset other chips required if they are tied up with GPIO pins */
 720         cx231xx_add_into_devlist(dev);
 721
 722         if (dev->model == CX231XX_BOARD_CNXT_VIDEO_GRABBER) {
 723                 printk(KERN_INFO "attach 417 %d\n", dev->model);
 724                 if (cx231xx_417_register(dev) < 0) {
 725                         printk(KERN_ERR
 726                                 "%s() Failed to register 417 on VID_B\n",
 727                                __func__);
 728                 }
 729         }
 730
 731         retval = cx231xx_register_analog_devices(dev);
 732         if (retval < 0) {
 733                 cx231xx_release_resources(dev);
 734                 goto fail_reg_devices;
 735         }
 736
 737         cx231xx_init_extension(dev);
 738
 739         return 0;
 740
 741 fail_reg_devices:
 742         mutex_unlock(&dev->lock);
 743         return retval;
 744 }
 745
 746 #if defined(CONFIG_MODULES) && defined(MODULE)
 747 static void request_module_async(struct work_struct *work)
 748 {
 749         struct cx231xx *dev = container_of(work,
 750                                            struct cx231xx, request_module_wk);
 751
 752         if (dev->has_alsa_audio)
 753                 request_module("cx231xx-alsa");
 754
 755         if (dev->board.has_dvb)
 756                 request_module("cx231xx-dvb");
 757
 758 }
 759
 760 static void request_modules(struct cx231xx *dev)
 761 {
 762         INIT_WORK(&dev->request_module_wk, request_module_async);
 763         schedule_work(&dev->request_module_wk);
 764 }
 765 #else
 766 #define request_modules(dev)
 767 #endif /* CONFIG_MODULES */
 768
 769 /*
 770  * cx231xx_usb_probe()
 771  * checks for supported devices
 772  */
 773 static int cx231xx_usb_probe(struct usb_interface *interface,
 774                              const struct usb_device_id *id)
 775 {
 776         struct usb_device *udev;
 777         struct usb_interface *uif;
 778         struct cx231xx *dev = NULL;
 779         int retval = -ENODEV;
 780         int nr = 0, ifnum;
 781         int i, isoc_pipe = 0;
 782         char *speed;
 783         char descr[255] = "";
 784         struct usb_interface *lif = NULL;
 785         struct usb_interface_assoc_descriptor *assoc_desc;
 786
 787         udev = usb_get_dev(interface_to_usbdev(interface));
 788         ifnum = interface->altsetting[0].desc.bInterfaceNumber;
 789
 790         if (ifnum == 1) {
 791                 /*
 792                  * Interface number 0 - IR interface
 793                  */
 794                 /* Check to see next free device and mark as used */
 795                 nr = find_first_zero_bit(&cx231xx_devused, CX231XX_MAXBOARDS);
 796                 cx231xx_devused |= 1 << nr;
 797
 798                 if (nr >= CX231XX_MAXBOARDS) {
 799                         cx231xx_err(DRIVER_NAME
 800                  ": Supports only %i cx231xx boards.\n", CX231XX_MAXBOARDS);
 801                         cx231xx_devused &= ~(1 << nr);
 802                         return -ENOMEM;
 803                 }
 804
 805                 /* allocate memory for our device state and initialize it */
 806                 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 807                 if (dev == NULL) {
 808                         cx231xx_err(DRIVER_NAME ": out of memory!\n");
 809                         cx231xx_devused &= ~(1 << nr);
 810                         return -ENOMEM;
 811                 }
 812
 813                 snprintf(dev->name, 29, "cx231xx #%d", nr);
 814                 dev->devno = nr;
 815                 dev->model = id->driver_info;
 816                 dev->video_mode.alt = -1;
 817                 dev->interface_count++;
 818
 819                 /* reset gpio dir and value */
 820                 dev->gpio_dir = 0;
 821                 dev->gpio_val = 0;
 822                 dev->xc_fw_load_done = 0;
 823                 dev->has_alsa_audio = 1;
 824                 dev->power_mode = -1;
 825                 atomic_set(&dev->devlist_count, 0);
 826
 827                 /* 0 - vbi ; 1 -sliced cc mode */
 828                 dev->vbi_or_sliced_cc_mode = 0;
 829
 830                 /* get maximum no.of IAD interfaces */
 831                 assoc_desc = udev->actconfig->intf_assoc[0];
 832                 dev->max_iad_interface_count = assoc_desc->bInterfaceCount;
 833
 834                 /* init CIR module TBD */
 835
 836                 /* store the current interface */
 837                 lif = interface;
 838
 839                 /*mode_tv: digital=1 or analog=0*/
 840                 dev->mode_tv = 0;
 841
 842                 dev->USE_ISO = transfer_mode;
 843
 844                 switch (udev->speed) {
 845                 case USB_SPEED_LOW:
 846                         speed = "1.5";
 847                         break;
 848                 case USB_SPEED_UNKNOWN:
 849                 case USB_SPEED_FULL:
 850                         speed = "12";
 851                         break;
 852                 case USB_SPEED_HIGH:
 853                         speed = "480";
 854                         break;
 855                 default:
 856                         speed = "unknown";
 857                 }
 858
 859                 if (udev->manufacturer)
 860                         strlcpy(descr, udev->manufacturer, sizeof(descr));
 861
 862                 if (udev->product) {
 863                         if (*descr)
 864                                 strlcat(descr, " ", sizeof(descr));
 865                         strlcat(descr, udev->product, sizeof(descr));
 866                 }
 867                 if (*descr)
 868                         strlcat(descr, " ", sizeof(descr));
 869
 870                 cx231xx_info("New device %s@ %s Mbps "
 871                      "(%04x:%04x) with %d interfaces\n",
 872                      descr,
 873                      speed,
 874                      le16_to_cpu(udev->descriptor.idVendor),
 875                      le16_to_cpu(udev->descriptor.idProduct),
 876                      dev->max_iad_interface_count);
 877
 878                 /* store the interface 0 back */
 879                 lif = udev->actconfig->interface[0];
 880
 881                 /* increment interface count */
 882                 dev->interface_count++;
 883
 884                 /* get device number */
 885                 nr = dev->devno;
 886
 887                 assoc_desc = udev->actconfig->intf_assoc[0];
 888                 if (assoc_desc->bFirstInterface != ifnum) {
 889                         cx231xx_err(DRIVER_NAME ": Not found "
 890                                     "matching IAD interface\n");
 891                         return -ENODEV;
 892                 }
 893         } else {
 894                 return -ENODEV;
 895         }
 896
 897         cx231xx_info("registering interface %d\n", ifnum);
 898
 899         /* save our data pointer in this interface device */
 900         usb_set_intfdata(lif, dev);
 901
 902         /*
 903          * AV device initialization - only done at the last interface
 904          */
 905
 906         /* Create v4l2 device */
 907         retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
 908         if (retval) {
 909                 cx231xx_errdev("v4l2_device_register failed\n");
 910                 cx231xx_devused &= ~(1 << nr);
 911                 kfree(dev);
 912                 dev = NULL;
 913                 return -EIO;
 914         }
 915         /* allocate device struct */
 916         retval = cx231xx_init_dev(&dev, udev, nr);
 917         if (retval) {
 918                 cx231xx_devused &= ~(1 << dev->devno);
 919                 v4l2_device_unregister(&dev->v4l2_dev);
 920                 kfree(dev);
 921                 dev = NULL;
 922                 usb_set_intfdata(lif, NULL);
 923
 924                 return retval;
 925         }
 926
 927         /* compute alternate max packet sizes for video */
 928         uif = udev->actconfig->interface[dev->current_pcb_config.
 929                        hs_config_info[0].interface_info.video_index + 1];
 930
 931         dev->video_mode.end_point_addr = le16_to_cpu(uif->altsetting[0].
 932                         endpoint[isoc_pipe].desc.bEndpointAddress);
 933
 934         dev->video_mode.num_alt = uif->num_altsetting;
 935         cx231xx_info("EndPoint Addr 0x%x, Alternate settings: %i\n",
 936                      dev->video_mode.end_point_addr,
 937                      dev->video_mode.num_alt);
 938         dev->video_mode.alt_max_pkt_size =
 939                 kmalloc(32 * dev->video_mode.num_alt, GFP_KERNEL);
 940
 941         if (dev->video_mode.alt_max_pkt_size == NULL) {
 942                 cx231xx_errdev("out of memory!\n");
 943                 cx231xx_devused &= ~(1 << nr);
 944                 v4l2_device_unregister(&dev->v4l2_dev);
 945                 kfree(dev);
 946                 dev = NULL;
 947                 return -ENOMEM;
 948         }
 949
 950         for (i = 0; i < dev->video_mode.num_alt; i++) {
 951                 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
 952                                 desc.wMaxPacketSize);
 953                 dev->video_mode.alt_max_pkt_size[i] =
 954                     (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
 955                 cx231xx_info("Alternate setting %i, max size= %i\n", i,
 956                              dev->video_mode.alt_max_pkt_size[i]);
 957         }
 958
 959         /* compute alternate max packet sizes for vbi */
 960         uif = udev->actconfig->interface[dev->current_pcb_config.
 961                                        hs_config_info[0].interface_info.
 962                                        vanc_index + 1];
 963
 964         dev->vbi_mode.end_point_addr =
 965             le16_to_cpu(uif->altsetting[0].endpoint[isoc_pipe].desc.
 966                         bEndpointAddress);
 967
 968         dev->vbi_mode.num_alt = uif->num_altsetting;
 969         cx231xx_info("EndPoint Addr 0x%x, Alternate settings: %i\n",
 970                      dev->vbi_mode.end_point_addr,
 971                      dev->vbi_mode.num_alt);
 972         dev->vbi_mode.alt_max_pkt_size =
 973             kmalloc(32 * dev->vbi_mode.num_alt, GFP_KERNEL);
 974
 975         if (dev->vbi_mode.alt_max_pkt_size == NULL) {
 976                 cx231xx_errdev("out of memory!\n");
 977                 cx231xx_devused &= ~(1 << nr);
 978                 v4l2_device_unregister(&dev->v4l2_dev);
 979                 kfree(dev);
 980                 dev = NULL;
 981                 return -ENOMEM;
 982         }
 983
 984         for (i = 0; i < dev->vbi_mode.num_alt; i++) {
 985                 u16 tmp =
 986                     le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
 987                                 desc.wMaxPacketSize);
 988                 dev->vbi_mode.alt_max_pkt_size[i] =
 989                     (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
 990                 cx231xx_info("Alternate setting %i, max size= %i\n", i,
 991                              dev->vbi_mode.alt_max_pkt_size[i]);
 992         }
 993
 994         /* compute alternate max packet sizes for sliced CC */
 995         uif = udev->actconfig->interface[dev->current_pcb_config.
 996                                        hs_config_info[0].interface_info.
 997                                        hanc_index + 1];
 998
 999         dev->sliced_cc_mode.end_point_addr =
1000             le16_to_cpu(uif->altsetting[0].endpoint[isoc_pipe].desc.
1001                         bEndpointAddress);
1002
1003         dev->sliced_cc_mode.num_alt = uif->num_altsetting;
1004         cx231xx_info("EndPoint Addr 0x%x, Alternate settings: %i\n",
1005                      dev->sliced_cc_mode.end_point_addr,
1006                      dev->sliced_cc_mode.num_alt);
1007         dev->sliced_cc_mode.alt_max_pkt_size =
1008                 kmalloc(32 * dev->sliced_cc_mode.num_alt, GFP_KERNEL);
1009
1010         if (dev->sliced_cc_mode.alt_max_pkt_size == NULL) {
1011                 cx231xx_errdev("out of memory!\n");
1012                 cx231xx_devused &= ~(1 << nr);
1013                 v4l2_device_unregister(&dev->v4l2_dev);
1014                 kfree(dev);
1015                 dev = NULL;
1016                 return -ENOMEM;
1017         }
1018
1019         for (i = 0; i < dev->sliced_cc_mode.num_alt; i++) {
1020                 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
1021                                 desc.wMaxPacketSize);
1022                 dev->sliced_cc_mode.alt_max_pkt_size[i] =
1023                     (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
1024                 cx231xx_info("Alternate setting %i, max size= %i\n", i,
1025                              dev->sliced_cc_mode.alt_max_pkt_size[i]);
1026         }
1027
1028         if (dev->current_pcb_config.ts1_source != 0xff) {
1029                 /* compute alternate max packet sizes for TS1 */
1030                 uif = udev->actconfig->interface[dev->current_pcb_config.
1031                                                hs_config_info[0].
1032                                                interface_info.
1033                                                ts1_index + 1];
1034
1035                 dev->ts1_mode.end_point_addr =
1036                     le16_to_cpu(uif->altsetting[0].endpoint[isoc_pipe].
1037                                 desc.bEndpointAddress);
1038
1039                 dev->ts1_mode.num_alt = uif->num_altsetting;
1040                 cx231xx_info("EndPoint Addr 0x%x, Alternate settings: %i\n",
1041                              dev->ts1_mode.end_point_addr,
1042                              dev->ts1_mode.num_alt);
1043                 dev->ts1_mode.alt_max_pkt_size =
1044                         kmalloc(32 * dev->ts1_mode.num_alt, GFP_KERNEL);
1045
1046                 if (dev->ts1_mode.alt_max_pkt_size == NULL) {
1047                         cx231xx_errdev("out of memory!\n");
1048                         cx231xx_devused &= ~(1 << nr);
1049                         v4l2_device_unregister(&dev->v4l2_dev);
1050                         kfree(dev);
1051                         dev = NULL;
1052                         return -ENOMEM;
1053                 }
1054
1055                 for (i = 0; i < dev->ts1_mode.num_alt; i++) {
1056                         u16 tmp = le16_to_cpu(uif->altsetting[i].
1057                                                 endpoint[isoc_pipe].desc.
1058                                                 wMaxPacketSize);
1059                         dev->ts1_mode.alt_max_pkt_size[i] =
1060                             (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
1061                         cx231xx_info("Alternate setting %i, max size= %i\n", i,
1062                                      dev->ts1_mode.alt_max_pkt_size[i]);
1063                 }
1064         }
1065
1066         if (dev->model == CX231XX_BOARD_CNXT_VIDEO_GRABBER) {
1067                 cx231xx_enable_OSC(dev);
1068                 cx231xx_reset_out(dev);
1069                 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 3);
1070         }
1071
1072         if (dev->model == CX231XX_BOARD_CNXT_RDE_253S)
1073                 cx231xx_sleep_s5h1432(dev);
1074
1075         /* load other modules required */
1076         request_modules(dev);
1077
1078         return 0;
1079 }
1080
1081 /*
1082  * cx231xx_usb_disconnect()
1083  * called when the device gets diconencted
1084  * video device will be unregistered on v4l2_close in case it is still open
1085  */
1086 static void cx231xx_usb_disconnect(struct usb_interface *interface)
1087 {
1088         struct cx231xx *dev;
1089
1090         dev = usb_get_intfdata(interface);
1091         usb_set_intfdata(interface, NULL);
1092
1093         if (!dev)
1094                 return;
1095
1096         if (!dev->udev)
1097                 return;
1098
1099         /* delete v4l2 device */
1100         v4l2_device_unregister(&dev->v4l2_dev);
1101
1102         /* wait until all current v4l2 io is finished then deallocate
1103            resources */
1104         mutex_lock(&dev->lock);
1105
1106         wake_up_interruptible_all(&dev->open);
1107
1108         if (dev->users) {
1109                 cx231xx_warn
1110                     ("device %s is open! Deregistration and memory "
1111                      "deallocation are deferred on close.\n",
1112                      video_device_node_name(dev->vdev));
1113
1114                 dev->state |= DEV_MISCONFIGURED;
1115                 if (dev->USE_ISO)
1116                         cx231xx_uninit_isoc(dev);
1117                 else
1118                         cx231xx_uninit_bulk(dev);
1119                 dev->state |= DEV_DISCONNECTED;
1120                 wake_up_interruptible(&dev->wait_frame);
1121                 wake_up_interruptible(&dev->wait_stream);
1122         } else {
1123                 dev->state |= DEV_DISCONNECTED;
1124                 cx231xx_release_resources(dev);
1125         }
1126
1127         cx231xx_close_extension(dev);
1128
1129         mutex_unlock(&dev->lock);
1130
1131         if (!dev->users) {
1132                 kfree(dev->video_mode.alt_max_pkt_size);
1133                 kfree(dev->vbi_mode.alt_max_pkt_size);
1134                 kfree(dev->sliced_cc_mode.alt_max_pkt_size);
1135                 kfree(dev->ts1_mode.alt_max_pkt_size);
1136                 kfree(dev);
1137                 dev = NULL;
1138         }
1139 }
1140
1141 static struct usb_driver cx231xx_usb_driver = {
1142         .name = "cx231xx",
1143         .probe = cx231xx_usb_probe,
1144         .disconnect = cx231xx_usb_disconnect,
1145         .id_table = cx231xx_id_table,
1146 };
1147
1148 static int __init cx231xx_module_init(void)
1149 {
1150         int result;
1151
1152         printk(KERN_INFO DRIVER_NAME " v4l2 driver loaded.\n");
1153
1154         /* register this driver with the USB subsystem */
1155         result = usb_register(&cx231xx_usb_driver);
1156         if (result)
1157                 cx231xx_err(DRIVER_NAME
1158                             " usb_register failed. Error number %d.\n", result);
1159
1160         return result;
1161 }
1162
1163 static void __exit cx231xx_module_exit(void)
1164 {
1165         /* deregister this driver with the USB subsystem */
1166         usb_deregister(&cx231xx_usb_driver);
1167 }
1168
1169 module_init(cx231xx_module_init);
1170 module_exit(cx231xx_module_exit);