git.oblomov.eu Git - linux-2.6/blob - 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/delay.h>
  26 #include <linux/i2c.h>
  27 #include <linux/usb.h>
  28 #include <media/tuner.h>
  29 #include <media/tveeprom.h>
  30 #include <media/v4l2-common.h>
  31 #include <media/v4l2-chip-ident.h>
  32
  33 #include <media/cx25840.h>
  34 #include "xc5000.h"
  35
  36 #include "cx231xx.h"
  37
  38 static int tuner = -1;
  39 module_param(tuner, int, 0444);
  40 MODULE_PARM_DESC(tuner, "tuner type");
  41
  42 static unsigned int disable_ir;
  43 module_param(disable_ir, int, 0444);
  44 MODULE_PARM_DESC(disable_ir, "disable infrared remote support");
  45
  46 /* Bitmask marking allocated devices from 0 to CX231XX_MAXBOARDS */
  47 static unsigned long cx231xx_devused;
  48
  49 /*
  50  *  Reset sequences for analog/digital modes
  51  */
  52
  53 static struct cx231xx_reg_seq RDE250_XCV_TUNER[] = {
  54         {0x03, 0x01, 10},
  55         {0x03, 0x00, 30},
  56         {0x03, 0x01, 10},
  57         {-1, -1, -1},
  58 };
  59
  60 /*
  61  *  Board definitions
  62  */
  63 struct cx231xx_board cx231xx_boards[] = {
  64
  65         [CX231XX_BOARD_UNKNOWN] = {
  66                                    .name = "Unknown CX231xx video grabber",
  67                                    .tuner_type = TUNER_ABSENT,
  68                                    .input = {{
  69                                               .type = CX231XX_VMUX_TELEVISION,
  70                                               .vmux = CX231XX_VIN_3_1,
  71                                               .amux = CX231XX_AMUX_VIDEO,
  72                                               .gpio = 0,
  73                                               }, {
  74                                                   .type =
  75                                                   CX231XX_VMUX_COMPOSITE1,
  76                                                   .vmux = CX231XX_VIN_2_1,
  77                                                   .amux = CX231XX_AMUX_LINE_IN,
  78                                                   .gpio = 0,
  79                                                   }, {
  80                                                       .type =
  81                                                       CX231XX_VMUX_SVIDEO,
  82                                                       .vmux =
  83                                                       CX231XX_VIN_1_1 |
  84                                                       (CX231XX_VIN_1_2 << 8) |
  85                                                       CX25840_SVIDEO_ON,
  86                                                       .amux =
  87                                                       CX231XX_AMUX_LINE_IN,
  88                                                       .gpio = 0,
  89                                                       } },
  90                                    },
  91
  92         [CX231XX_BOARD_CNXT_RDE_250] = {
  93                                         .name = "Conexant Hybrid TV - RDE250",
  94                                         .valid = CX231XX_BOARD_VALIDATED,
  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 =
 114                                                    CX231XX_VMUX_TELEVISION,
 115                                                    .vmux = CX231XX_VIN_3_1,
 116                                                    .amux = CX231XX_AMUX_VIDEO,
 117                                                    .gpio = 0,
 118                                                    }, {
 119                                                        .type =
 120                                                        CX231XX_VMUX_COMPOSITE1,
 121                                                        .vmux = CX231XX_VIN_2_1,
 122                                                        .amux =
 123                                                        CX231XX_AMUX_LINE_IN,
 124                                                        .gpio = 0,
 125                                                        }, {
 126                                                            .type =
 127                                                            CX231XX_VMUX_SVIDEO,
 128                                                            .vmux =
 129                                                            CX231XX_VIN_1_1 |
 130                                                            (CX231XX_VIN_1_2 <<
 131                                                             8) |
 132                                                            CX25840_SVIDEO_ON,
 133                                                            .amux =
 134                                                            CX231XX_AMUX_LINE_IN,
 135                                                            .gpio = 0,
 136                                                            } },
 137                                         },
 138
 139         [CX231XX_BOARD_CNXT_RDU_250] = {
 140                                         .name = "Conexant Hybrid TV - RDU250",
 141                                         .valid = CX231XX_BOARD_VALIDATED,
 142                                         .tuner_type = TUNER_XC5000,
 143                                         .tuner_addr = 0x61,
 144                                         .tuner_gpio = RDE250_XCV_TUNER,
 145                                         .tuner_sif_gpio = 0x05,
 146                                         .tuner_scl_gpio = 0x1a,
 147                                         .tuner_sda_gpio = 0x1b,
 148                                         .decoder = CX231XX_AVDECODER,
 149                                         .demod_xfer_mode = 0,
 150                                         .ctl_pin_status_mask = 0xFFFFFFC4,
 151                                         .agc_analog_digital_select_gpio = 0x0c,
 152                                         .gpio_pin_status_mask = 0x4001000,
 153                                         .tuner_i2c_master = 1,
 154                                         .demod_i2c_master = 2,
 155                                         .has_dvb = 1,
 156                                         .demod_addr = 0x32,
 157                                         .norm = V4L2_STD_NTSC,
 158
 159                                         .input = {{
 160                                                    .type =
 161                                                    CX231XX_VMUX_TELEVISION,
 162                                                    .vmux = CX231XX_VIN_3_1,
 163                                                    .amux = CX231XX_AMUX_VIDEO,
 164                                                    .gpio = 0,
 165                                                    }, {
 166                                                        .type =
 167                                                        CX231XX_VMUX_COMPOSITE1,
 168                                                        .vmux = CX231XX_VIN_2_1,
 169                                                        .amux =
 170                                                        CX231XX_AMUX_LINE_IN,
 171                                                        .gpio = 0,
 172                                                        }, {
 173                                                            .type =
 174                                                            CX231XX_VMUX_SVIDEO,
 175                                                            .vmux =
 176                                                            CX231XX_VIN_1_1 |
 177                                                            (CX231XX_VIN_1_2 <<
 178                                                             8) |
 179                                                            CX25840_SVIDEO_ON,
 180                                                            .amux =
 181                                                            CX231XX_AMUX_LINE_IN,
 182                                                            .gpio = 0,
 183                                                            } },
 184                                         },
 185 };
 186 const unsigned int cx231xx_bcount = ARRAY_SIZE(cx231xx_boards);
 187
 188 /* table of devices that work with this driver */
 189 struct usb_device_id cx231xx_id_table[] = {
 190         {USB_DEVICE(0x0572, 0x58A0),
 191          .driver_info = CX231XX_BOARD_UNKNOWN},
 192         {USB_DEVICE(0x0572, 0x58A2),
 193          .driver_info = CX231XX_BOARD_CNXT_RDE_250},
 194         {USB_DEVICE(0x0572, 0x5A3C),
 195          .driver_info = CX231XX_BOARD_CNXT_RDU_250},
 196         {},
 197 };
 198
 199 MODULE_DEVICE_TABLE(usb, cx231xx_id_table);
 200
 201 /* cx231xx_tuner_callback
 202  * will be used to reset XC5000 tuner using GPIO pin
 203  */
 204
 205 int cx231xx_tuner_callback(void *ptr, int component, int command, int arg)
 206 {
 207         int rc = 0;
 208         struct cx231xx *dev = ptr;
 209
 210         if (dev->tuner_type == TUNER_XC5000) {
 211                 if (command == XC5000_TUNER_RESET) {
 212                         cx231xx_info
 213                                 ("Tuner CB: RESET: cmd %d : tuner type %d \n",
 214                                  command, dev->tuner_type);
 215                         cx231xx_set_gpio_value(dev, dev->board.tuner_gpio->bit,
 216                                                1);
 217                         msleep(10);
 218                         cx231xx_set_gpio_value(dev, dev->board.tuner_gpio->bit,
 219                                                0);
 220                         msleep(330);
 221                         cx231xx_set_gpio_value(dev, dev->board.tuner_gpio->bit,
 222                                                1);
 223                         msleep(10);
 224                 }
 225         }
 226         return rc;
 227 }
 228 EXPORT_SYMBOL_GPL(cx231xx_tuner_callback);
 229
 230 static inline void cx231xx_set_model(struct cx231xx *dev)
 231 {
 232         memcpy(&dev->board, &cx231xx_boards[dev->model], sizeof(dev->board));
 233 }
 234
 235 /* Since cx231xx_pre_card_setup() requires a proper dev->model,
 236  * this won't work for boards with generic PCI IDs
 237  */
 238 void cx231xx_pre_card_setup(struct cx231xx *dev)
 239 {
 240
 241         cx231xx_set_model(dev);
 242
 243         cx231xx_info("Identified as %s (card=%d)\n",
 244                      dev->board.name, dev->model);
 245
 246         /* Do card specific if any */
 247         switch (dev->model) {
 248         case CX231XX_BOARD_CNXT_RDE_250:
 249                 /* do card specific GPIO settings if required */
 250                 cx231xx_info("Precard: Board is Conexnat RDE 250\n");
 251                 /* set the direction for GPIO pins */
 252                 cx231xx_set_gpio_direction(dev, dev->board.tuner_gpio->bit, 1);
 253                 cx231xx_set_gpio_value(dev, dev->board.tuner_gpio->bit, 1);
 254                 cx231xx_set_gpio_direction(dev, dev->board.tuner_sif_gpio, 1);
 255                 break;
 256         case CX231XX_BOARD_CNXT_RDU_250:
 257                 /* do card specific GPIO settings if required */
 258                 cx231xx_info("Precard: Board is Conexnat RDU 250\n");
 259                 /* set the direction for GPIO pins */
 260                 cx231xx_set_gpio_direction(dev, dev->board.tuner_gpio->bit, 1);
 261                 cx231xx_set_gpio_value(dev, dev->board.tuner_gpio->bit, 1);
 262                 cx231xx_set_gpio_direction(dev, dev->board.tuner_sif_gpio, 1);
 263                 break;
 264         }
 265
 266         /* request some modules if any required */
 267
 268         /* reset the Tuner */
 269         cx231xx_gpio_set(dev, dev->board.tuner_gpio);
 270
 271         /* set the mode to Analog mode initially */
 272         cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
 273
 274         /* Unlock device */
 275         /* cx231xx_set_mode(dev, CX231XX_SUSPEND); */
 276
 277 }
 278
 279 #if 0
 280
 281 static void cx231xx_config_tuner(struct cx231xx *dev)
 282 {
 283         struct tuner_setup tun_setup;
 284         struct v4l2_frequency f;
 285
 286         if (dev->tuner_type == TUNER_ABSENT)
 287                 return;
 288
 289         tun_setup.mode_mask = T_ANALOG_TV | T_RADIO;
 290         tun_setup.type = dev->tuner_type;
 291         tun_setup.addr = dev->tuner_addr;
 292         tun_setup.tuner_callback = cx231xx_tuner_callback;
 293
 294         cx231xx_i2c_call_clients(&dev->i2c_bus[1], TUNER_SET_TYPE_ADDR,
 295                                  &tun_setup);
 296 #if 0
 297         if (tun_setup.type == TUNER_XC5000) {
 298                 static struct xc2028_ctrl ctrl = {
 299                         .fname = XC5000_DEFAULT_FIRMWARE,
 300                         .max_len = 64,
 301                         .demod = 0;
 302                 };
 303                 struct v4l2_priv_tun_config cfg = {
 304                         .tuner = dev->tuner_type,
 305                         .priv = &ctrl,
 306                 };
 307                 cx231xx_i2c_call_clients(&dev->i2c_bus[1], TUNER_SET_CONFIG,
 308                                          &cfg);
 309         }
 310 #endif
 311
 312         /* configure tuner */
 313         f.tuner = 0;
 314         f.type = V4L2_TUNER_ANALOG_TV;
 315         f.frequency = 9076;     /* just a magic number */
 316         dev->ctl_freq = f.frequency;
 317         cx231xx_i2c_call_clients(&dev->i2c_bus[1], VIDIOC_S_FREQUENCY, &f);
 318 }
 319
 320 #endif
 321
 322 /* ----------------------------------------------------------------------- */
 323 void cx231xx_set_ir(struct cx231xx *dev, struct IR_i2c *ir)
 324 {
 325         if (disable_ir) {
 326                 ir->get_key = NULL;
 327                 return;
 328         }
 329
 330         /* detect & configure */
 331         switch (dev->model) {
 332
 333         case CX231XX_BOARD_CNXT_RDE_250:
 334                 break;
 335         case CX231XX_BOARD_CNXT_RDU_250:
 336                 break;
 337         default:
 338                 break;
 339         }
 340 }
 341
 342 void cx231xx_card_setup(struct cx231xx *dev)
 343 {
 344         cx231xx_set_model(dev);
 345
 346         dev->tuner_type = cx231xx_boards[dev->model].tuner_type;
 347         if (cx231xx_boards[dev->model].tuner_addr)
 348                 dev->tuner_addr = cx231xx_boards[dev->model].tuner_addr;
 349
 350         cx231xx_info(": tuner type %d, tuner address %d \n",
 351                      dev->tuner_type, dev->tuner_addr);
 352
 353         /* Do card specific if any */
 354         switch (dev->model) {
 355         case CX231XX_BOARD_CNXT_RDE_250:
 356                 /* do card specific GPIO settings if required */
 357                 cx231xx_info("Board is Conexnat RDE 250\n");
 358                 break;
 359         case CX231XX_BOARD_CNXT_RDU_250:
 360                 /* do card specific GPIO settings if required */
 361                 cx231xx_info("Board is Conexnat RDU 250\n");
 362                 break;
 363         }
 364
 365         if (dev->board.valid == CX231XX_BOARD_NOT_VALIDATED) {
 366                 cx231xx_errdev("\n\n");
 367                 cx231xx_errdev("The support for this board weren't "
 368                                "valid yet.\n");
 369                 cx231xx_errdev("Please send a report of having this working\n");
 370                 cx231xx_errdev("not to V4L mailing list (and/or to other "
 371                                "addresses)\n\n");
 372         }
 373
 374         /* request some modules */
 375         if (dev->board.decoder == CX231XX_AVDECODER) {
 376                 cx231xx_info(": Requesting cx25840 module\n");
 377                 request_module("cx25840");
 378         }
 379 #if 0
 380         if (dev->board.tuner_type != TUNER_ABSENT) {
 381                 cx231xx_info(": Requesting Tuner module\n");
 382                 request_module("tuner");
 383         }
 384
 385         cx231xx_config_tuner(dev);
 386
 387         /* TBD  IR will be added later */
 388         cx231xx_ir_init(dev);
 389 #endif
 390 }
 391
 392 /*
 393  * cx231xx_config()
 394  * inits registers with sane defaults
 395  */
 396 int cx231xx_config(struct cx231xx *dev)
 397 {
 398         /* TBD need to add cx231xx specific code */
 399         dev->mute = 1;          /* maybe not the right place... */
 400         dev->volume = 0x1f;
 401
 402         return 0;
 403 }
 404
 405 /*
 406  * cx231xx_config_i2c()
 407  * configure i2c attached devices
 408  */
 409 void cx231xx_config_i2c(struct cx231xx *dev)
 410 {
 411         struct v4l2_routing route;
 412
 413         route.input = INPUT(dev->video_input)->vmux;
 414         route.output = 0;
 415
 416         cx231xx_i2c_call_clients(&dev->i2c_bus[0], VIDIOC_STREAMON, NULL);
 417 }
 418
 419 /*
 420  * cx231xx_realease_resources()
 421  * unregisters the v4l2,i2c and usb devices
 422  * called when the device gets disconected or at module unload
 423 */
 424 void cx231xx_release_resources(struct cx231xx *dev)
 425 {
 426
 427 #if 0           /* TBD IR related  */
 428         if (dev->ir)
 429                 cx231xx_ir_fini(dev);
 430 #endif
 431
 432         cx231xx_release_analog_resources(dev);
 433
 434         cx231xx_remove_from_devlist(dev);
 435
 436         cx231xx_dev_uninit(dev);
 437
 438         usb_put_dev(dev->udev);
 439
 440         /* Mark device as unused */
 441         cx231xx_devused &= ~(1 << dev->devno);
 442 }
 443
 444 /*
 445  * cx231xx_init_dev()
 446  * allocates and inits the device structs, registers i2c bus and v4l device
 447  */
 448 static int cx231xx_init_dev(struct cx231xx **devhandle, struct usb_device *udev,
 449                             int minor)
 450 {
 451         struct cx231xx *dev = *devhandle;
 452         int retval = -ENOMEM;
 453         int errCode;
 454         unsigned int maxh, maxw;
 455
 456         dev->udev = udev;
 457         mutex_init(&dev->lock);
 458         mutex_init(&dev->ctrl_urb_lock);
 459         mutex_init(&dev->gpio_i2c_lock);
 460
 461         spin_lock_init(&dev->video_mode.slock);
 462         spin_lock_init(&dev->vbi_mode.slock);
 463         spin_lock_init(&dev->sliced_cc_mode.slock);
 464
 465         init_waitqueue_head(&dev->open);
 466         init_waitqueue_head(&dev->wait_frame);
 467         init_waitqueue_head(&dev->wait_stream);
 468
 469         dev->cx231xx_read_ctrl_reg = cx231xx_read_ctrl_reg;
 470         dev->cx231xx_write_ctrl_reg = cx231xx_write_ctrl_reg;
 471         dev->cx231xx_send_usb_command = cx231xx_send_usb_command;
 472         dev->cx231xx_gpio_i2c_read = cx231xx_gpio_i2c_read;
 473         dev->cx231xx_gpio_i2c_write = cx231xx_gpio_i2c_write;
 474
 475         /* Query cx231xx to find what pcb config it is related to */
 476         initialize_cx231xx(dev);
 477
 478         /* Cx231xx pre card setup */
 479         cx231xx_pre_card_setup(dev);
 480
 481         errCode = cx231xx_config(dev);
 482         if (errCode) {
 483                 cx231xx_errdev("error configuring device\n");
 484                 return -ENOMEM;
 485         }
 486
 487         /* set default norm */
 488         dev->norm = dev->board.norm;
 489
 490         /* register i2c bus */
 491         errCode = cx231xx_dev_init(dev);
 492         if (errCode < 0) {
 493                 cx231xx_errdev("%s: cx231xx_i2c_register - errCode [%d]!\n",
 494                                __func__, errCode);
 495                 return errCode;
 496         }
 497
 498         /* Do board specific init */
 499         cx231xx_card_setup(dev);
 500
 501         /* configure the device */
 502         cx231xx_config_i2c(dev);
 503
 504         maxw = norm_maxw(dev);
 505         maxh = norm_maxh(dev);
 506
 507         /* set default image size */
 508         dev->width = maxw;
 509         dev->height = maxh;
 510         dev->interlaced = 0;
 511         dev->hscale = 0;
 512         dev->vscale = 0;
 513         dev->video_input = 0;
 514
 515         errCode = cx231xx_config(dev);
 516         if (errCode < 0) {
 517                 cx231xx_errdev("%s: cx231xx_config - errCode [%d]!\n",
 518                                __func__, errCode);
 519                 return errCode;
 520         }
 521
 522         /* init video dma queues */
 523         INIT_LIST_HEAD(&dev->video_mode.vidq.active);
 524         INIT_LIST_HEAD(&dev->video_mode.vidq.queued);
 525
 526         /* init vbi dma queues */
 527         INIT_LIST_HEAD(&dev->vbi_mode.vidq.active);
 528         INIT_LIST_HEAD(&dev->vbi_mode.vidq.queued);
 529
 530         /* Reset other chips required if they are tied up with GPIO pins */
 531
 532         cx231xx_add_into_devlist(dev);
 533
 534         retval = cx231xx_register_analog_devices(dev);
 535         if (retval < 0) {
 536                 cx231xx_release_resources(dev);
 537                 goto fail_reg_devices;
 538         }
 539
 540         cx231xx_init_extension(dev);
 541
 542         return 0;
 543
 544 fail_reg_devices:
 545         mutex_unlock(&dev->lock);
 546         return retval;
 547 }
 548
 549 #if defined(CONFIG_MODULES) && defined(MODULE)
 550 static void request_module_async(struct work_struct *work)
 551 {
 552         struct cx231xx *dev = container_of(work,
 553                                            struct cx231xx, request_module_wk);
 554
 555         if (dev->has_alsa_audio)
 556                 request_module("cx231xx-alsa");
 557
 558         if (dev->board.has_dvb)
 559                 request_module("cx231xx-dvb");
 560
 561 }
 562
 563 static void request_modules(struct cx231xx *dev)
 564 {
 565         INIT_WORK(&dev->request_module_wk, request_module_async);
 566         schedule_work(&dev->request_module_wk);
 567 }
 568 #else
 569 #define request_modules(dev)
 570 #endif /* CONFIG_MODULES */
 571
 572 /*
 573  * cx231xx_usb_probe()
 574  * checks for supported devices
 575  */
 576 static int cx231xx_usb_probe(struct usb_interface *interface,
 577                              const struct usb_device_id *id)
 578 {
 579         struct usb_device *udev;
 580         struct usb_interface *uif;
 581         struct cx231xx *dev = NULL;
 582         int retval = -ENODEV;
 583         int nr, ifnum;
 584         int i, isoc_pipe = 0;
 585         char *speed;
 586         char descr[255] = "";
 587         struct usb_interface *lif = NULL;
 588         int skip_interface = 0;
 589         struct usb_interface_assoc_descriptor *assoc_desc;
 590
 591         udev = usb_get_dev(interface_to_usbdev(interface));
 592         ifnum = interface->altsetting[0].desc.bInterfaceNumber;
 593
 594         cx231xx_info(": Interface Number %d\n", ifnum);
 595
 596         /* Interface number 0 - IR interface */
 597         if (ifnum == 0) {
 598                 /* Check to see next free device and mark as used */
 599                 nr = find_first_zero_bit(&cx231xx_devused, CX231XX_MAXBOARDS);
 600                 cx231xx_devused |= 1 << nr;
 601
 602                 if (nr >= CX231XX_MAXBOARDS) {
 603                         cx231xx_info(": Supports only %i cx231xx boards.\n",
 604                                      CX231XX_MAXBOARDS);
 605                         cx231xx_devused &= ~(1 << nr);
 606                         return -ENOMEM;
 607                 }
 608
 609                 /* allocate memory for our device state and initialize it */
 610                 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 611                 if (dev == NULL) {
 612                         cx231xx_err(DRIVER_NAME ": out of memory!\n");
 613                         cx231xx_devused &= ~(1 << nr);
 614                         return -ENOMEM;
 615                 }
 616
 617                 snprintf(dev->name, 29, "cx231xx #%d", nr);
 618                 dev->devno = nr;
 619                 dev->model = id->driver_info;
 620                 dev->video_mode.alt = -1;
 621                 dev->interface_count++;
 622
 623                 /* reset gpio dir and value */
 624                 dev->gpio_dir = 0;
 625                 dev->gpio_val = 0;
 626                 dev->xc_fw_load_done = 0;
 627                 dev->has_alsa_audio = 1;
 628                 dev->power_mode = -1;
 629
 630                 /* 0 - vbi ; 1 -sliced cc mode */
 631                 dev->vbi_or_sliced_cc_mode = 0;
 632
 633                 /* get maximum no.of IAD interfaces */
 634                 assoc_desc = udev->actconfig->intf_assoc[0];
 635                 dev->max_iad_interface_count = assoc_desc->bInterfaceCount;
 636                 cx231xx_info("Found IAD interface count %d\n",
 637                              dev->max_iad_interface_count);
 638
 639                 /* init CIR module TBD */
 640
 641                 /* store the current interface */
 642                 lif = interface;
 643
 644         } else if (ifnum == 1) {
 645
 646                 /* Get dev structure first */
 647                 dev = usb_get_intfdata(udev->actconfig->interface[0]);
 648                 if (dev == NULL) {
 649                         cx231xx_err(DRIVER_NAME ": out of first interface!\n");
 650                         return -ENODEV;
 651                 }
 652
 653                 /* store the interface 0 back */
 654                 lif = udev->actconfig->interface[0];
 655
 656                 /* increment interface count */
 657                 dev->interface_count++;
 658
 659                 /* get device number */
 660                 nr = dev->devno;
 661
 662                 assoc_desc = udev->actconfig->intf_assoc[0];
 663                 if (assoc_desc->bFirstInterface == ifnum) {
 664                         cx231xx_info
 665                         ("Found IAD interface match: AV Desc Start!! \n");
 666                 } else {
 667                         cx231xx_err(" Not found matching interface\n");
 668                         return -ENODEV;
 669                 }
 670
 671         } else if (ifnum >= 2) {
 672                 /* Get dev structure first */
 673                 dev = usb_get_intfdata(udev->actconfig->interface[0]);
 674                 if (dev == NULL) {
 675                         cx231xx_err(DRIVER_NAME ": out of first interface!\n");
 676                         return -ENODEV;
 677                 }
 678
 679                 /* store the interface 0 back */
 680                 lif = udev->actconfig->interface[0];
 681
 682                 /* increment interface count */
 683                 dev->interface_count++;
 684
 685                 /* get device number */
 686                 nr = dev->devno;
 687
 688                 /* set skip interface */
 689                 if ((dev->interface_count - 1) != dev->max_iad_interface_count)
 690                         skip_interface = 1;     /* set skipping */
 691                 else {
 692                         cx231xx_info
 693                         ("Found IAD interface no. match with AV Device no.!\n");
 694                 }
 695         }
 696
 697         switch (udev->speed) {
 698         case USB_SPEED_LOW:
 699                 speed = "1.5";
 700                 break;
 701         case USB_SPEED_UNKNOWN:
 702         case USB_SPEED_FULL:
 703                 speed = "12";
 704                 break;
 705         case USB_SPEED_HIGH:
 706                 speed = "480";
 707                 break;
 708         default:
 709                 speed = "unknown";
 710         }
 711
 712         if (udev->manufacturer)
 713                 strlcpy(descr, udev->manufacturer, sizeof(descr));
 714
 715         if (udev->product) {
 716                 if (*descr)
 717                         strlcat(descr, " ", sizeof(descr));
 718                 strlcat(descr, udev->product, sizeof(descr));
 719         }
 720         if (*descr)
 721                 strlcat(descr, " ", sizeof(descr));
 722
 723         cx231xx_info("New device %s@ %s Mbps "
 724                      "(%04x:%04x, interface %d, class %d)\n",
 725                      descr,
 726                      speed,
 727                      le16_to_cpu(udev->descriptor.idVendor),
 728                      le16_to_cpu(udev->descriptor.idProduct),
 729                      ifnum, interface->altsetting->desc.bInterfaceNumber);
 730
 731         /* AV device initialization */
 732         if ((dev->interface_count - 1) == dev->max_iad_interface_count) {
 733                 cx231xx_info(" Calling init_dev\n");
 734                 /* allocate device struct */
 735                 retval = cx231xx_init_dev(&dev, udev, nr);
 736                 if (retval) {
 737                         cx231xx_devused &= ~(1 << dev->devno);
 738                         kfree(dev);
 739
 740                         return retval;
 741                 }
 742
 743                 /* compute alternate max packet sizes for video */
 744                 uif =
 745                     udev->actconfig->interface[dev->current_pcb_config.
 746                                                hs_config_info[0].interface_info.
 747                                                video_index + 1];
 748
 749                 dev->video_mode.end_point_addr =
 750                     le16_to_cpu(uif->altsetting[0].endpoint[isoc_pipe].desc.
 751                                 bEndpointAddress);
 752
 753                 dev->video_mode.num_alt = uif->num_altsetting;
 754                 cx231xx_info(": EndPoint Addr 0x%x, Alternate settings: %i\n",
 755                              dev->video_mode.end_point_addr,
 756                              dev->video_mode.num_alt);
 757                 dev->video_mode.alt_max_pkt_size =
 758                     kmalloc(32 * dev->video_mode.num_alt, GFP_KERNEL);
 759
 760                 if (dev->video_mode.alt_max_pkt_size == NULL) {
 761                         cx231xx_errdev("out of memory!\n");
 762                         cx231xx_devused &= ~(1 << nr);
 763                         kfree(dev);
 764                         return -ENOMEM;
 765                 }
 766
 767                 for (i = 0; i < dev->video_mode.num_alt; i++) {
 768                         u16 tmp =
 769                             le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
 770                                         desc.wMaxPacketSize);
 771                         dev->video_mode.alt_max_pkt_size[i] =
 772                             (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
 773                         cx231xx_info("Alternate setting %i, max size= %i\n", i,
 774                                      dev->video_mode.alt_max_pkt_size[i]);
 775                 }
 776
 777                 /* compute alternate max packet sizes for vbi */
 778                 uif =
 779                     udev->actconfig->interface[dev->current_pcb_config.
 780                                                hs_config_info[0].interface_info.
 781                                                vanc_index + 1];
 782
 783                 dev->vbi_mode.end_point_addr =
 784                     le16_to_cpu(uif->altsetting[0].endpoint[isoc_pipe].desc.
 785                                 bEndpointAddress);
 786
 787                 dev->vbi_mode.num_alt = uif->num_altsetting;
 788                 cx231xx_info(": EndPoint Addr 0x%x, Alternate settings: %i\n",
 789                              dev->vbi_mode.end_point_addr,
 790                              dev->vbi_mode.num_alt);
 791                 dev->vbi_mode.alt_max_pkt_size =
 792                     kmalloc(32 * dev->vbi_mode.num_alt, GFP_KERNEL);
 793
 794                 if (dev->vbi_mode.alt_max_pkt_size == NULL) {
 795                         cx231xx_errdev("out of memory!\n");
 796                         cx231xx_devused &= ~(1 << nr);
 797                         kfree(dev);
 798                         return -ENOMEM;
 799                 }
 800
 801                 for (i = 0; i < dev->vbi_mode.num_alt; i++) {
 802                         u16 tmp =
 803                             le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
 804                                         desc.wMaxPacketSize);
 805                         dev->vbi_mode.alt_max_pkt_size[i] =
 806                             (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
 807                         cx231xx_info("Alternate setting %i, max size= %i\n", i,
 808                                      dev->vbi_mode.alt_max_pkt_size[i]);
 809                 }
 810
 811                 /* compute alternate max packet sizes for sliced CC */
 812                 uif =
 813                     udev->actconfig->interface[dev->current_pcb_config.
 814                                                hs_config_info[0].interface_info.
 815                                                hanc_index + 1];
 816
 817                 dev->sliced_cc_mode.end_point_addr =
 818                     le16_to_cpu(uif->altsetting[0].endpoint[isoc_pipe].desc.
 819                                 bEndpointAddress);
 820
 821                 dev->sliced_cc_mode.num_alt = uif->num_altsetting;
 822                 cx231xx_info(": EndPoint Addr 0x%x, Alternate settings: %i\n",
 823                              dev->sliced_cc_mode.end_point_addr,
 824                              dev->sliced_cc_mode.num_alt);
 825                 dev->sliced_cc_mode.alt_max_pkt_size =
 826                     kmalloc(32 * dev->sliced_cc_mode.num_alt, GFP_KERNEL);
 827
 828                 if (dev->sliced_cc_mode.alt_max_pkt_size == NULL) {
 829                         cx231xx_errdev("out of memory!\n");
 830                         cx231xx_devused &= ~(1 << nr);
 831                         kfree(dev);
 832                         return -ENOMEM;
 833                 }
 834
 835                 for (i = 0; i < dev->sliced_cc_mode.num_alt; i++) {
 836                         u16 tmp =
 837                             le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
 838                                         desc.wMaxPacketSize);
 839                         dev->sliced_cc_mode.alt_max_pkt_size[i] =
 840                             (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
 841                         cx231xx_info("Alternate setting %i, max size= %i\n", i,
 842                                      dev->sliced_cc_mode.alt_max_pkt_size[i]);
 843                 }
 844
 845                 if (dev->current_pcb_config.ts1_source != 0xff) {
 846
 847                         /* compute alternate max packet sizes for TS1 */
 848                         uif =
 849                             udev->actconfig->interface[dev->current_pcb_config.
 850                                                        hs_config_info[0].
 851                                                        interface_info.
 852                                                        ts1_index + 1];
 853
 854                         dev->ts1_mode.end_point_addr =
 855                             le16_to_cpu(uif->altsetting[0].endpoint[isoc_pipe].
 856                                         desc.bEndpointAddress);
 857
 858                         dev->ts1_mode.num_alt = uif->num_altsetting;
 859                         cx231xx_info
 860                             (": EndPoint Addr 0x%x, Alternate settings: %i\n",
 861                              dev->ts1_mode.end_point_addr,
 862                              dev->ts1_mode.num_alt);
 863                         dev->ts1_mode.alt_max_pkt_size =
 864                             kmalloc(32 * dev->ts1_mode.num_alt, GFP_KERNEL);
 865
 866                         if (dev->ts1_mode.alt_max_pkt_size == NULL) {
 867                                 cx231xx_errdev("out of memory!\n");
 868                                 cx231xx_devused &= ~(1 << nr);
 869                                 kfree(dev);
 870                                 return -ENOMEM;
 871                         }
 872
 873                         for (i = 0; i < dev->ts1_mode.num_alt; i++) {
 874                                 u16 tmp =
 875                                     le16_to_cpu(uif->altsetting[i].
 876                                                 endpoint[isoc_pipe].desc.
 877                                                 wMaxPacketSize);
 878                                 dev->ts1_mode.alt_max_pkt_size[i] =
 879                                     (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) +
 880                                                       1);
 881                                 cx231xx_info
 882                                     ("Alternate setting %i, max size= %i\n", i,
 883                                      dev->ts1_mode.alt_max_pkt_size[i]);
 884                         }
 885                 }
 886
 887         }
 888
 889         /* save our data pointer in this interface device */
 890         usb_set_intfdata(lif, dev);
 891
 892         /* load other modules required */
 893         if ((dev->interface_count - 1) == dev->max_iad_interface_count) {
 894                 cx231xx_info("Calling request modules\n");
 895                 request_modules(dev);
 896         }
 897
 898         if (skip_interface) {
 899                 cx231xx_info("Skipping the interface\n");
 900                 return -ENODEV;
 901         }
 902
 903         return 0;
 904 }
 905
 906 /*
 907  * cx231xx_usb_disconnect()
 908  * called when the device gets diconencted
 909  * video device will be unregistered on v4l2_close in case it is still open
 910  */
 911 static void cx231xx_usb_disconnect(struct usb_interface *interface)
 912 {
 913         struct cx231xx *dev;
 914
 915         dev = usb_get_intfdata(interface);
 916         usb_set_intfdata(interface, NULL);
 917
 918         if (!dev)
 919                 return;
 920
 921         /* wait until all current v4l2 io is finished then deallocate
 922            resources */
 923         mutex_lock(&dev->lock);
 924
 925         wake_up_interruptible_all(&dev->open);
 926
 927         if (dev->users) {
 928                 cx231xx_warn
 929                     ("device /dev/video%d is open! Deregistration and memory "
 930                      "deallocation are deferred on close.\n", dev->vdev->num);
 931
 932                 dev->state |= DEV_MISCONFIGURED;
 933                 cx231xx_uninit_isoc(dev);
 934                 dev->state |= DEV_DISCONNECTED;
 935                 wake_up_interruptible(&dev->wait_frame);
 936                 wake_up_interruptible(&dev->wait_stream);
 937         } else {
 938                 dev->state |= DEV_DISCONNECTED;
 939                 cx231xx_release_resources(dev);
 940         }
 941
 942         cx231xx_close_extension(dev);
 943
 944         mutex_unlock(&dev->lock);
 945
 946         if (!dev->users) {
 947                 kfree(dev->video_mode.alt_max_pkt_size);
 948                 kfree(dev->vbi_mode.alt_max_pkt_size);
 949                 kfree(dev->sliced_cc_mode.alt_max_pkt_size);
 950                 kfree(dev->ts1_mode.alt_max_pkt_size);
 951                 kfree(dev);
 952         }
 953 }
 954
 955 static struct usb_driver cx231xx_usb_driver = {
 956         .name = "cx231xx",
 957         .probe = cx231xx_usb_probe,
 958         .disconnect = cx231xx_usb_disconnect,
 959         .id_table = cx231xx_id_table,
 960 };
 961
 962 static int __init cx231xx_module_init(void)
 963 {
 964         int result;
 965
 966         printk(KERN_INFO DRIVER_NAME " v4l2 driver loaded.\n");
 967
 968         /* register this driver with the USB subsystem */
 969         result = usb_register(&cx231xx_usb_driver);
 970         if (result)
 971                 cx231xx_err(DRIVER_NAME
 972                             " usb_register failed. Error number %d.\n", result);
 973
 974         return result;
 975 }
 976
 977 static void __exit cx231xx_module_exit(void)
 978 {
 979         /* deregister this driver with the USB subsystem */
 980         usb_deregister(&cx231xx_usb_driver);
 981 }
 982
 983 module_init(cx231xx_module_init);
 984 module_exit(cx231xx_module_exit);