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         switch (dev->model) {
 588         case CX231XX_BOARD_CNXT_CARRAERA:
 589         case CX231XX_BOARD_CNXT_RDE_250:
 590         case CX231XX_BOARD_CNXT_SHELBY:
 591         case CX231XX_BOARD_CNXT_RDU_250:
 592                 if (dev->board.tuner_type != TUNER_ABSENT) {
 593                         dev->sd_tuner = v4l2_i2c_new_subdev(&dev->v4l2_dev,
 594                                         &dev->i2c_bus[1].i2c_adap,
 595                                         "tuner", "tuner", 0xc2 >> 1, NULL);
 596                         if (dev->sd_tuner == NULL)
 597                                 cx231xx_info(
 598                                 "tuner subdev registration failure\n");
 599
 600                         cx231xx_config_tuner(dev);
 601                 }
 602                 break;
 603         case CX231XX_BOARD_CNXT_RDE_253S:
 604         case CX231XX_BOARD_CNXT_RDU_253S:
 605         case CX231XX_BOARD_CNXT_VIDEO_GRABBER:
 606         case CX231XX_BOARD_HAUPPAUGE_EXETER:
 607                 if (dev->board.tuner_type != TUNER_ABSENT) {
 608                         dev->sd_tuner = v4l2_i2c_new_subdev(&dev->v4l2_dev,
 609                                         &dev->i2c_bus[1].i2c_adap,
 610                                         "tuner", "tuner", 0xc0 >> 1, NULL);
 611                         if (dev->sd_tuner == NULL)
 612                                 cx231xx_info(
 613                                 "tuner subdev registration failure\n");
 614
 615                         cx231xx_config_tuner(dev);
 616                 }
 617                 break;
 618         default:
 619                 break;
 620         }
 621
 622         cx231xx_config_tuner(dev);
 623
 624 #if 0
 625         /* TBD  IR will be added later */
 626         cx231xx_ir_init(dev);
 627 #endif
 628 }
 629
 630 /*
 631  * cx231xx_config()
 632  * inits registers with sane defaults
 633  */
 634 int cx231xx_config(struct cx231xx *dev)
 635 {
 636         /* TBD need to add cx231xx specific code */
 637         dev->mute = 1;          /* maybe not the right place... */
 638         dev->volume = 0x1f;
 639
 640         return 0;
 641 }
 642
 643 /*
 644  * cx231xx_config_i2c()
 645  * configure i2c attached devices
 646  */
 647 void cx231xx_config_i2c(struct cx231xx *dev)
 648 {
 649         /* u32 input = INPUT(dev->video_input)->vmux; */
 650
 651         call_all(dev, video, s_stream, 1);
 652 }
 653
 654 /*
 655  * cx231xx_realease_resources()
 656  * unregisters the v4l2,i2c and usb devices
 657  * called when the device gets disconected or at module unload
 658 */
 659 void cx231xx_release_resources(struct cx231xx *dev)
 660 {
 661
 662 #if 0           /* TBD IR related  */
 663         if (dev->ir)
 664                 cx231xx_ir_fini(dev);
 665 #endif
 666
 667         cx231xx_release_analog_resources(dev);
 668
 669         cx231xx_remove_from_devlist(dev);
 670
 671         cx231xx_dev_uninit(dev);
 672
 673         usb_put_dev(dev->udev);
 674
 675         /* Mark device as unused */
 676         cx231xx_devused &= ~(1 << dev->devno);
 677 }
 678
 679 /*
 680  * cx231xx_init_dev()
 681  * allocates and inits the device structs, registers i2c bus and v4l device
 682  */
 683 static int cx231xx_init_dev(struct cx231xx **devhandle, struct usb_device *udev,
 684                             int minor)
 685 {
 686         struct cx231xx *dev = *devhandle;
 687         int retval = -ENOMEM;
 688         int errCode;
 689         unsigned int maxh, maxw;
 690
 691         dev->udev = udev;
 692         mutex_init(&dev->lock);
 693         mutex_init(&dev->ctrl_urb_lock);
 694         mutex_init(&dev->gpio_i2c_lock);
 695         mutex_init(&dev->i2c_lock);
 696
 697         spin_lock_init(&dev->video_mode.slock);
 698         spin_lock_init(&dev->vbi_mode.slock);
 699         spin_lock_init(&dev->sliced_cc_mode.slock);
 700
 701         init_waitqueue_head(&dev->open);
 702         init_waitqueue_head(&dev->wait_frame);
 703         init_waitqueue_head(&dev->wait_stream);
 704
 705         dev->cx231xx_read_ctrl_reg = cx231xx_read_ctrl_reg;
 706         dev->cx231xx_write_ctrl_reg = cx231xx_write_ctrl_reg;
 707         dev->cx231xx_send_usb_command = cx231xx_send_usb_command;
 708         dev->cx231xx_gpio_i2c_read = cx231xx_gpio_i2c_read;
 709         dev->cx231xx_gpio_i2c_write = cx231xx_gpio_i2c_write;
 710
 711         /* Query cx231xx to find what pcb config it is related to */
 712         initialize_cx231xx(dev);
 713
 714         /*To workaround error number=-71 on EP0 for VideoGrabber,
 715                  need set alt here.*/
 716         if (dev->model == CX231XX_BOARD_CNXT_VIDEO_GRABBER) {
 717                 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 3);
 718                 cx231xx_set_alt_setting(dev, INDEX_VANC, 1);
 719         }
 720         /* Cx231xx pre card setup */
 721         cx231xx_pre_card_setup(dev);
 722
 723         errCode = cx231xx_config(dev);
 724         if (errCode) {
 725                 cx231xx_errdev("error configuring device\n");
 726                 return -ENOMEM;
 727         }
 728
 729         /* set default norm */
 730         dev->norm = dev->board.norm;
 731
 732         /* register i2c bus */
 733         errCode = cx231xx_dev_init(dev);
 734         if (errCode < 0) {
 735                 cx231xx_dev_uninit(dev);
 736                 cx231xx_errdev("%s: cx231xx_i2c_register - errCode [%d]!\n",
 737                                __func__, errCode);
 738                 return errCode;
 739         }
 740
 741         /* Do board specific init */
 742         cx231xx_card_setup(dev);
 743
 744         /* configure the device */
 745         cx231xx_config_i2c(dev);
 746
 747         maxw = norm_maxw(dev);
 748         maxh = norm_maxh(dev);
 749
 750         /* set default image size */
 751         dev->width = maxw;
 752         dev->height = maxh;
 753         dev->interlaced = 0;
 754         dev->hscale = 0;
 755         dev->vscale = 0;
 756         dev->video_input = 0;
 757
 758         errCode = cx231xx_config(dev);
 759         if (errCode < 0) {
 760                 cx231xx_errdev("%s: cx231xx_config - errCode [%d]!\n",
 761                                __func__, errCode);
 762                 return errCode;
 763         }
 764
 765         /* init video dma queues */
 766         INIT_LIST_HEAD(&dev->video_mode.vidq.active);
 767         INIT_LIST_HEAD(&dev->video_mode.vidq.queued);
 768
 769         /* init vbi dma queues */
 770         INIT_LIST_HEAD(&dev->vbi_mode.vidq.active);
 771         INIT_LIST_HEAD(&dev->vbi_mode.vidq.queued);
 772
 773         /* Reset other chips required if they are tied up with GPIO pins */
 774         cx231xx_add_into_devlist(dev);
 775
 776         printk(KERN_INFO "attach 417 %d\n", dev->model);
 777         if (dev->model == CX231XX_BOARD_CNXT_VIDEO_GRABBER) {
 778                 if (cx231xx_417_register(dev) < 0) {
 779                         printk(KERN_ERR
 780                                 "%s() Failed to register 417 on VID_B\n",
 781                                __func__);
 782                 }
 783         }
 784
 785         retval = cx231xx_register_analog_devices(dev);
 786         if (retval < 0) {
 787                 cx231xx_release_resources(dev);
 788                 goto fail_reg_devices;
 789         }
 790
 791         cx231xx_init_extension(dev);
 792
 793         return 0;
 794
 795 fail_reg_devices:
 796         mutex_unlock(&dev->lock);
 797         return retval;
 798 }
 799
 800 #if defined(CONFIG_MODULES) && defined(MODULE)
 801 static void request_module_async(struct work_struct *work)
 802 {
 803         struct cx231xx *dev = container_of(work,
 804                                            struct cx231xx, request_module_wk);
 805
 806         if (dev->has_alsa_audio)
 807                 request_module("cx231xx-alsa");
 808
 809         if (dev->board.has_dvb)
 810                 request_module("cx231xx-dvb");
 811
 812 }
 813
 814 static void request_modules(struct cx231xx *dev)
 815 {
 816         INIT_WORK(&dev->request_module_wk, request_module_async);
 817         schedule_work(&dev->request_module_wk);
 818 }
 819 #else
 820 #define request_modules(dev)
 821 #endif /* CONFIG_MODULES */
 822
 823 /*
 824  * cx231xx_usb_probe()
 825  * checks for supported devices
 826  */
 827 static int cx231xx_usb_probe(struct usb_interface *interface,
 828                              const struct usb_device_id *id)
 829 {
 830         struct usb_device *udev;
 831         struct usb_interface *uif;
 832         struct cx231xx *dev = NULL;
 833         int retval = -ENODEV;
 834         int nr = 0, ifnum;
 835         int i, isoc_pipe = 0;
 836         char *speed;
 837         char descr[255] = "";
 838         struct usb_interface *lif = NULL;
 839         int skip_interface = 0;
 840         struct usb_interface_assoc_descriptor *assoc_desc;
 841
 842         udev = usb_get_dev(interface_to_usbdev(interface));
 843         ifnum = interface->altsetting[0].desc.bInterfaceNumber;
 844
 845         if (!ifnum) {
 846                 /*
 847                  * Interface number 0 - IR interface
 848                  */
 849                 /* Check to see next free device and mark as used */
 850                 nr = find_first_zero_bit(&cx231xx_devused, CX231XX_MAXBOARDS);
 851                 cx231xx_devused |= 1 << nr;
 852
 853                 if (nr >= CX231XX_MAXBOARDS) {
 854                         cx231xx_err(DRIVER_NAME
 855                  ": Supports only %i cx231xx boards.\n", CX231XX_MAXBOARDS);
 856                         cx231xx_devused &= ~(1 << nr);
 857                         return -ENOMEM;
 858                 }
 859
 860                 /* allocate memory for our device state and initialize it */
 861                 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 862                 if (dev == NULL) {
 863                         cx231xx_err(DRIVER_NAME ": out of memory!\n");
 864                         cx231xx_devused &= ~(1 << nr);
 865                         return -ENOMEM;
 866                 }
 867
 868                 snprintf(dev->name, 29, "cx231xx #%d", nr);
 869                 dev->devno = nr;
 870                 dev->model = id->driver_info;
 871                 dev->video_mode.alt = -1;
 872                 dev->interface_count++;
 873
 874                 /* reset gpio dir and value */
 875                 dev->gpio_dir = 0;
 876                 dev->gpio_val = 0;
 877                 dev->xc_fw_load_done = 0;
 878                 dev->has_alsa_audio = 1;
 879                 dev->power_mode = -1;
 880                 atomic_set(&dev->devlist_count, 0);
 881
 882                 /* 0 - vbi ; 1 -sliced cc mode */
 883                 dev->vbi_or_sliced_cc_mode = 0;
 884
 885                 /* get maximum no.of IAD interfaces */
 886                 assoc_desc = udev->actconfig->intf_assoc[0];
 887                 dev->max_iad_interface_count = assoc_desc->bInterfaceCount;
 888
 889                 /* init CIR module TBD */
 890
 891                 /* store the current interface */
 892                 lif = interface;
 893
 894                 /*mode_tv: digital=1 or analog=0*/
 895                 dev->mode_tv = 0;
 896
 897                 dev->USE_ISO = transfer_mode;
 898
 899                 switch (udev->speed) {
 900                 case USB_SPEED_LOW:
 901                         speed = "1.5";
 902                         break;
 903                 case USB_SPEED_UNKNOWN:
 904                 case USB_SPEED_FULL:
 905                         speed = "12";
 906                         break;
 907                 case USB_SPEED_HIGH:
 908                         speed = "480";
 909                         break;
 910                 default:
 911                         speed = "unknown";
 912                 }
 913
 914                 if (udev->manufacturer)
 915                         strlcpy(descr, udev->manufacturer, sizeof(descr));
 916
 917                 if (udev->product) {
 918                         if (*descr)
 919                                 strlcat(descr, " ", sizeof(descr));
 920                         strlcat(descr, udev->product, sizeof(descr));
 921                 }
 922                 if (*descr)
 923                         strlcat(descr, " ", sizeof(descr));
 924
 925                 cx231xx_info("New device %s@ %s Mbps "
 926                      "(%04x:%04x) with %d interfaces\n",
 927                      descr,
 928                      speed,
 929                      le16_to_cpu(udev->descriptor.idVendor),
 930                      le16_to_cpu(udev->descriptor.idProduct),
 931                      dev->max_iad_interface_count);
 932         } else {
 933                 /* Get dev structure first */
 934                 dev = usb_get_intfdata(udev->actconfig->interface[0]);
 935                 if (dev == NULL) {
 936                         cx231xx_err(DRIVER_NAME ": out of first interface!\n");
 937                         return -ENODEV;
 938                 }
 939
 940                 /* store the interface 0 back */
 941                 lif = udev->actconfig->interface[0];
 942
 943                 /* increment interface count */
 944                 dev->interface_count++;
 945
 946                 /* get device number */
 947                 nr = dev->devno;
 948
 949                 /*
 950                  * set skip interface, for all interfaces but
 951                  * interface 1 and the last one
 952                  */
 953                 if ((ifnum != 1) && ((ifnum)
 954                                      != dev->max_iad_interface_count))
 955                         skip_interface = 1;
 956
 957                 if (ifnum == 1) {
 958                         assoc_desc = udev->actconfig->intf_assoc[0];
 959                         if (assoc_desc->bFirstInterface != ifnum) {
 960                                 cx231xx_err(DRIVER_NAME ": Not found "
 961                                             "matching IAD interface\n");
 962                                 return -ENODEV;
 963                         }
 964                 }
 965         }
 966
 967         if (skip_interface)
 968                 return -ENODEV;
 969
 970         cx231xx_info("registering interface %d\n", ifnum);
 971
 972         /* save our data pointer in this interface device */
 973         usb_set_intfdata(lif, dev);
 974
 975         if ((ifnum) != dev->max_iad_interface_count)
 976                 return 0;
 977
 978         /*
 979          * AV device initialization - only done at the last interface
 980          */
 981
 982         /* Create v4l2 device */
 983         retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
 984         if (retval) {
 985                 cx231xx_errdev("v4l2_device_register failed\n");
 986                 cx231xx_devused &= ~(1 << nr);
 987                 kfree(dev);
 988                 dev = NULL;
 989                 return -EIO;
 990         }
 991         /* allocate device struct */
 992         retval = cx231xx_init_dev(&dev, udev, nr);
 993         if (retval) {
 994                 cx231xx_devused &= ~(1 << dev->devno);
 995                 v4l2_device_unregister(&dev->v4l2_dev);
 996                 kfree(dev);
 997                 dev = NULL;
 998                 usb_set_intfdata(lif, NULL);
 999
1000                 return retval;
1001         }
1002
1003         /* compute alternate max packet sizes for video */
1004         uif = udev->actconfig->interface[dev->current_pcb_config.
1005                        hs_config_info[0].interface_info.video_index + 1];
1006
1007         dev->video_mode.end_point_addr = le16_to_cpu(uif->altsetting[0].
1008                         endpoint[isoc_pipe].desc.bEndpointAddress);
1009
1010         dev->video_mode.num_alt = uif->num_altsetting;
1011         cx231xx_info("EndPoint Addr 0x%x, Alternate settings: %i\n",
1012                      dev->video_mode.end_point_addr,
1013                      dev->video_mode.num_alt);
1014         dev->video_mode.alt_max_pkt_size =
1015                 kmalloc(32 * dev->video_mode.num_alt, GFP_KERNEL);
1016
1017         if (dev->video_mode.alt_max_pkt_size == NULL) {
1018                 cx231xx_errdev("out of memory!\n");
1019                 cx231xx_devused &= ~(1 << nr);
1020                 v4l2_device_unregister(&dev->v4l2_dev);
1021                 kfree(dev);
1022                 dev = NULL;
1023                 return -ENOMEM;
1024         }
1025
1026         for (i = 0; i < dev->video_mode.num_alt; i++) {
1027                 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
1028                                 desc.wMaxPacketSize);
1029                 dev->video_mode.alt_max_pkt_size[i] =
1030                     (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
1031                 cx231xx_info("Alternate setting %i, max size= %i\n", i,
1032                              dev->video_mode.alt_max_pkt_size[i]);
1033         }
1034
1035         /* compute alternate max packet sizes for vbi */
1036         uif = udev->actconfig->interface[dev->current_pcb_config.
1037                                        hs_config_info[0].interface_info.
1038                                        vanc_index + 1];
1039
1040         dev->vbi_mode.end_point_addr =
1041             le16_to_cpu(uif->altsetting[0].endpoint[isoc_pipe].desc.
1042                         bEndpointAddress);
1043
1044         dev->vbi_mode.num_alt = uif->num_altsetting;
1045         cx231xx_info("EndPoint Addr 0x%x, Alternate settings: %i\n",
1046                      dev->vbi_mode.end_point_addr,
1047                      dev->vbi_mode.num_alt);
1048         dev->vbi_mode.alt_max_pkt_size =
1049             kmalloc(32 * dev->vbi_mode.num_alt, GFP_KERNEL);
1050
1051         if (dev->vbi_mode.alt_max_pkt_size == NULL) {
1052                 cx231xx_errdev("out of memory!\n");
1053                 cx231xx_devused &= ~(1 << nr);
1054                 v4l2_device_unregister(&dev->v4l2_dev);
1055                 kfree(dev);
1056                 dev = NULL;
1057                 return -ENOMEM;
1058         }
1059
1060         for (i = 0; i < dev->vbi_mode.num_alt; i++) {
1061                 u16 tmp =
1062                     le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
1063                                 desc.wMaxPacketSize);
1064                 dev->vbi_mode.alt_max_pkt_size[i] =
1065                     (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
1066                 cx231xx_info("Alternate setting %i, max size= %i\n", i,
1067                              dev->vbi_mode.alt_max_pkt_size[i]);
1068         }
1069
1070         /* compute alternate max packet sizes for sliced CC */
1071         uif = udev->actconfig->interface[dev->current_pcb_config.
1072                                        hs_config_info[0].interface_info.
1073                                        hanc_index + 1];
1074
1075         dev->sliced_cc_mode.end_point_addr =
1076             le16_to_cpu(uif->altsetting[0].endpoint[isoc_pipe].desc.
1077                         bEndpointAddress);
1078
1079         dev->sliced_cc_mode.num_alt = uif->num_altsetting;
1080         cx231xx_info("EndPoint Addr 0x%x, Alternate settings: %i\n",
1081                      dev->sliced_cc_mode.end_point_addr,
1082                      dev->sliced_cc_mode.num_alt);
1083         dev->sliced_cc_mode.alt_max_pkt_size =
1084                 kmalloc(32 * dev->sliced_cc_mode.num_alt, GFP_KERNEL);
1085
1086         if (dev->sliced_cc_mode.alt_max_pkt_size == NULL) {
1087                 cx231xx_errdev("out of memory!\n");
1088                 cx231xx_devused &= ~(1 << nr);
1089                 v4l2_device_unregister(&dev->v4l2_dev);
1090                 kfree(dev);
1091                 dev = NULL;
1092                 return -ENOMEM;
1093         }
1094
1095         for (i = 0; i < dev->sliced_cc_mode.num_alt; i++) {
1096                 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
1097                                 desc.wMaxPacketSize);
1098                 dev->sliced_cc_mode.alt_max_pkt_size[i] =
1099                     (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
1100                 cx231xx_info("Alternate setting %i, max size= %i\n", i,
1101                              dev->sliced_cc_mode.alt_max_pkt_size[i]);
1102         }
1103
1104         if (dev->current_pcb_config.ts1_source != 0xff) {
1105                 /* compute alternate max packet sizes for TS1 */
1106                 uif = udev->actconfig->interface[dev->current_pcb_config.
1107                                                hs_config_info[0].
1108                                                interface_info.
1109                                                ts1_index + 1];
1110
1111                 dev->ts1_mode.end_point_addr =
1112                     le16_to_cpu(uif->altsetting[0].endpoint[isoc_pipe].
1113                                 desc.bEndpointAddress);
1114
1115                 dev->ts1_mode.num_alt = uif->num_altsetting;
1116                 cx231xx_info("EndPoint Addr 0x%x, Alternate settings: %i\n",
1117                              dev->ts1_mode.end_point_addr,
1118                              dev->ts1_mode.num_alt);
1119                 dev->ts1_mode.alt_max_pkt_size =
1120                         kmalloc(32 * dev->ts1_mode.num_alt, GFP_KERNEL);
1121
1122                 if (dev->ts1_mode.alt_max_pkt_size == NULL) {
1123                         cx231xx_errdev("out of memory!\n");
1124                         cx231xx_devused &= ~(1 << nr);
1125                         v4l2_device_unregister(&dev->v4l2_dev);
1126                         kfree(dev);
1127                         dev = NULL;
1128                         return -ENOMEM;
1129                 }
1130
1131                 for (i = 0; i < dev->ts1_mode.num_alt; i++) {
1132                         u16 tmp = le16_to_cpu(uif->altsetting[i].
1133                                                 endpoint[isoc_pipe].desc.
1134                                                 wMaxPacketSize);
1135                         dev->ts1_mode.alt_max_pkt_size[i] =
1136                             (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
1137                         cx231xx_info("Alternate setting %i, max size= %i\n", i,
1138                                      dev->ts1_mode.alt_max_pkt_size[i]);
1139                 }
1140         }
1141
1142         if (dev->model == CX231XX_BOARD_CNXT_VIDEO_GRABBER) {
1143                 cx231xx_enable_OSC(dev);
1144                 cx231xx_reset_out(dev);
1145                 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 3);
1146         }
1147
1148         if (dev->model == CX231XX_BOARD_CNXT_RDE_253S)
1149                 cx231xx_sleep_s5h1432(dev);
1150
1151         /* load other modules required */
1152         request_modules(dev);
1153
1154         return 0;
1155 }
1156
1157 /*
1158  * cx231xx_usb_disconnect()
1159  * called when the device gets diconencted
1160  * video device will be unregistered on v4l2_close in case it is still open
1161  */
1162 static void cx231xx_usb_disconnect(struct usb_interface *interface)
1163 {
1164         struct cx231xx *dev;
1165
1166         dev = usb_get_intfdata(interface);
1167         usb_set_intfdata(interface, NULL);
1168
1169         if (!dev)
1170                 return;
1171
1172         if (!dev->udev)
1173                 return;
1174
1175         /* delete v4l2 device */
1176         v4l2_device_unregister(&dev->v4l2_dev);
1177
1178         /* wait until all current v4l2 io is finished then deallocate
1179            resources */
1180         mutex_lock(&dev->lock);
1181
1182         wake_up_interruptible_all(&dev->open);
1183
1184         if (dev->users) {
1185                 cx231xx_warn
1186                     ("device %s is open! Deregistration and memory "
1187                      "deallocation are deferred on close.\n",
1188                      video_device_node_name(dev->vdev));
1189
1190                 dev->state |= DEV_MISCONFIGURED;
1191                 if (dev->USE_ISO)
1192                         cx231xx_uninit_isoc(dev);
1193                 else
1194                         cx231xx_uninit_bulk(dev);
1195                 dev->state |= DEV_DISCONNECTED;
1196                 wake_up_interruptible(&dev->wait_frame);
1197                 wake_up_interruptible(&dev->wait_stream);
1198         } else {
1199                 dev->state |= DEV_DISCONNECTED;
1200                 cx231xx_release_resources(dev);
1201         }
1202
1203         cx231xx_close_extension(dev);
1204
1205         mutex_unlock(&dev->lock);
1206
1207         if (!dev->users) {
1208                 kfree(dev->video_mode.alt_max_pkt_size);
1209                 kfree(dev->vbi_mode.alt_max_pkt_size);
1210                 kfree(dev->sliced_cc_mode.alt_max_pkt_size);
1211                 kfree(dev->ts1_mode.alt_max_pkt_size);
1212                 kfree(dev);
1213                 dev = NULL;
1214         }
1215 }
1216
1217 static struct usb_driver cx231xx_usb_driver = {
1218         .name = "cx231xx",
1219         .probe = cx231xx_usb_probe,
1220         .disconnect = cx231xx_usb_disconnect,
1221         .id_table = cx231xx_id_table,
1222 };
1223
1224 static int __init cx231xx_module_init(void)
1225 {
1226         int result;
1227
1228         printk(KERN_INFO DRIVER_NAME " v4l2 driver loaded.\n");
1229
1230         /* register this driver with the USB subsystem */
1231         result = usb_register(&cx231xx_usb_driver);
1232         if (result)
1233                 cx231xx_err(DRIVER_NAME
1234                             " usb_register failed. Error number %d.\n", result);
1235
1236         return result;
1237 }
1238
1239 static void __exit cx231xx_module_exit(void)
1240 {
1241         /* deregister this driver with the USB subsystem */
1242         usb_deregister(&cx231xx_usb_driver);
1243 }
1244
1245 module_init(cx231xx_module_init);
1246 module_exit(cx231xx_module_exit);