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

   1 /*
   2  DVB device driver for cx231xx
   3
   4  Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
   5                 Based on em28xx driver
   6
   7  This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #include <linux/kernel.h>
  23 #include <linux/slab.h>
  24 #include <linux/usb.h>
  25
  26 #include "cx231xx.h"
  27 #include <media/v4l2-common.h>
  28 #include <media/videobuf-vmalloc.h>
  29
  30 #include "xc5000.h"
  31 #include "s5h1432.h"
  32 #include "tda18271.h"
  33 #include "s5h1411.h"
  34 #include "lgdt3305.h"
  35 #include "mb86a20s.h"
  36
  37 MODULE_DESCRIPTION("driver for cx231xx based DVB cards");
  38 MODULE_AUTHOR("Srinivasa Deevi <srinivasa.deevi@conexant.com>");
  39 MODULE_LICENSE("GPL");
  40
  41 static unsigned int debug;
  42 module_param(debug, int, 0644);
  43 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
  44
  45 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  46
  47 #define dprintk(level, fmt, arg...) do {                        \
  48 if (debug >= level)                                             \
  49         printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
  50 } while (0)
  51
  52 #define CX231XX_DVB_NUM_BUFS 5
  53 #define CX231XX_DVB_MAX_PACKETSIZE 564
  54 #define CX231XX_DVB_MAX_PACKETS 64
  55
  56 struct cx231xx_dvb {
  57         struct dvb_frontend *frontend;
  58
  59         /* feed count management */
  60         struct mutex lock;
  61         int nfeeds;
  62
  63         /* general boilerplate stuff */
  64         struct dvb_adapter adapter;
  65         struct dvb_demux demux;
  66         struct dmxdev dmxdev;
  67         struct dmx_frontend fe_hw;
  68         struct dmx_frontend fe_mem;
  69         struct dvb_net net;
  70 };
  71
  72 static struct s5h1432_config dvico_s5h1432_config = {
  73         .output_mode   = S5H1432_SERIAL_OUTPUT,
  74         .gpio          = S5H1432_GPIO_ON,
  75         .qam_if        = S5H1432_IF_4000,
  76         .vsb_if        = S5H1432_IF_4000,
  77         .inversion     = S5H1432_INVERSION_OFF,
  78         .status_mode   = S5H1432_DEMODLOCKING,
  79         .mpeg_timing   = S5H1432_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
  80 };
  81
  82 static struct tda18271_std_map cnxt_rde253s_tda18271_std_map = {
  83         .dvbt_6   = { .if_freq = 4000, .agc_mode = 3, .std = 4,
  84                       .if_lvl = 1, .rfagc_top = 0x37, },
  85         .dvbt_7   = { .if_freq = 4000, .agc_mode = 3, .std = 5,
  86                       .if_lvl = 1, .rfagc_top = 0x37, },
  87         .dvbt_8   = { .if_freq = 4000, .agc_mode = 3, .std = 6,
  88                       .if_lvl = 1, .rfagc_top = 0x37, },
  89 };
  90
  91 static struct tda18271_std_map mb86a20s_tda18271_config = {
  92         .dvbt_6   = { .if_freq = 3300, .agc_mode = 3, .std = 4,
  93                       .if_lvl = 7, .rfagc_top = 0x37, },
  94 };
  95
  96 static struct tda18271_config cnxt_rde253s_tunerconfig = {
  97         .std_map = &cnxt_rde253s_tda18271_std_map,
  98         .gate    = TDA18271_GATE_ANALOG,
  99 };
 100
 101 static struct s5h1411_config tda18271_s5h1411_config = {
 102         .output_mode   = S5H1411_SERIAL_OUTPUT,
 103         .gpio          = S5H1411_GPIO_OFF,
 104         .vsb_if        = S5H1411_IF_3250,
 105         .qam_if        = S5H1411_IF_4000,
 106         .inversion     = S5H1411_INVERSION_ON,
 107         .status_mode   = S5H1411_DEMODLOCKING,
 108         .mpeg_timing   = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 109 };
 110 static struct s5h1411_config xc5000_s5h1411_config = {
 111         .output_mode   = S5H1411_SERIAL_OUTPUT,
 112         .gpio          = S5H1411_GPIO_OFF,
 113         .vsb_if        = S5H1411_IF_3250,
 114         .qam_if        = S5H1411_IF_3250,
 115         .inversion     = S5H1411_INVERSION_OFF,
 116         .status_mode   = S5H1411_DEMODLOCKING,
 117         .mpeg_timing   = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 118 };
 119
 120 static struct lgdt3305_config hcw_lgdt3305_config = {
 121         .i2c_addr           = 0x0e,
 122         .mpeg_mode          = LGDT3305_MPEG_SERIAL,
 123         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 124         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 125         .deny_i2c_rptr      = 1,
 126         .spectral_inversion = 1,
 127         .qam_if_khz         = 4000,
 128         .vsb_if_khz         = 3250,
 129 };
 130
 131 static struct tda18271_std_map hauppauge_tda18271_std_map = {
 132         .atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 4,
 133                       .if_lvl = 1, .rfagc_top = 0x58, },
 134         .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 5,
 135                       .if_lvl = 1, .rfagc_top = 0x58, },
 136 };
 137
 138 static struct tda18271_config hcw_tda18271_config = {
 139         .std_map = &hauppauge_tda18271_std_map,
 140         .gate    = TDA18271_GATE_DIGITAL,
 141 };
 142
 143 static const struct mb86a20s_config pv_mb86a20s_config = {
 144         .demod_address = 0x10,
 145         .is_serial = true,
 146 };
 147
 148 static struct tda18271_config pv_tda18271_config = {
 149         .std_map = &mb86a20s_tda18271_config,
 150         .gate    = TDA18271_GATE_DIGITAL,
 151         .small_i2c = TDA18271_03_BYTE_CHUNK_INIT,
 152 };
 153
 154 static inline void print_err_status(struct cx231xx *dev, int packet, int status)
 155 {
 156         char *errmsg = "Unknown";
 157
 158         switch (status) {
 159         case -ENOENT:
 160                 errmsg = "unlinked synchronuously";
 161                 break;
 162         case -ECONNRESET:
 163                 errmsg = "unlinked asynchronuously";
 164                 break;
 165         case -ENOSR:
 166                 errmsg = "Buffer error (overrun)";
 167                 break;
 168         case -EPIPE:
 169                 errmsg = "Stalled (device not responding)";
 170                 break;
 171         case -EOVERFLOW:
 172                 errmsg = "Babble (bad cable?)";
 173                 break;
 174         case -EPROTO:
 175                 errmsg = "Bit-stuff error (bad cable?)";
 176                 break;
 177         case -EILSEQ:
 178                 errmsg = "CRC/Timeout (could be anything)";
 179                 break;
 180         case -ETIME:
 181                 errmsg = "Device does not respond";
 182                 break;
 183         }
 184         if (packet < 0) {
 185                 dprintk(1, "URB status %d [%s].\n", status, errmsg);
 186         } else {
 187                 dprintk(1, "URB packet %d, status %d [%s].\n",
 188                         packet, status, errmsg);
 189         }
 190 }
 191
 192 static inline int dvb_isoc_copy(struct cx231xx *dev, struct urb *urb)
 193 {
 194         int i;
 195
 196         if (!dev)
 197                 return 0;
 198
 199         if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
 200                 return 0;
 201
 202         if (urb->status < 0) {
 203                 print_err_status(dev, -1, urb->status);
 204                 if (urb->status == -ENOENT)
 205                         return 0;
 206         }
 207
 208         for (i = 0; i < urb->number_of_packets; i++) {
 209                 int status = urb->iso_frame_desc[i].status;
 210
 211                 if (status < 0) {
 212                         print_err_status(dev, i, status);
 213                         if (urb->iso_frame_desc[i].status != -EPROTO)
 214                                 continue;
 215                 }
 216
 217                 dvb_dmx_swfilter(&dev->dvb->demux,
 218                                  urb->transfer_buffer +
 219                                 urb->iso_frame_desc[i].offset,
 220                                 urb->iso_frame_desc[i].actual_length);
 221         }
 222
 223         return 0;
 224 }
 225
 226 static inline int dvb_bulk_copy(struct cx231xx *dev, struct urb *urb)
 227 {
 228         if (!dev)
 229                 return 0;
 230
 231         if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
 232                 return 0;
 233
 234         if (urb->status < 0) {
 235                 print_err_status(dev, -1, urb->status);
 236                 if (urb->status == -ENOENT)
 237                         return 0;
 238         }
 239
 240         /* Feed the transport payload into the kernel demux */
 241         dvb_dmx_swfilter(&dev->dvb->demux,
 242                 urb->transfer_buffer, urb->actual_length);
 243
 244         return 0;
 245 }
 246
 247 static int start_streaming(struct cx231xx_dvb *dvb)
 248 {
 249         int rc;
 250         struct cx231xx *dev = dvb->adapter.priv;
 251
 252         if (dev->USE_ISO) {
 253                 cx231xx_info("DVB transfer mode is ISO.\n");
 254                 mutex_lock(&dev->i2c_lock);
 255                 cx231xx_enable_i2c_port_3(dev, false);
 256                 cx231xx_set_alt_setting(dev, INDEX_TS1, 4);
 257                 cx231xx_enable_i2c_port_3(dev, true);
 258                 mutex_unlock(&dev->i2c_lock);
 259                 rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
 260                 if (rc < 0)
 261                         return rc;
 262                 dev->mode_tv = 1;
 263                 return cx231xx_init_isoc(dev, CX231XX_DVB_MAX_PACKETS,
 264                                         CX231XX_DVB_NUM_BUFS,
 265                                         dev->ts1_mode.max_pkt_size,
 266                                         dvb_isoc_copy);
 267         } else {
 268                 cx231xx_info("DVB transfer mode is BULK.\n");
 269                 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
 270                 rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
 271                 if (rc < 0)
 272                         return rc;
 273                 dev->mode_tv = 1;
 274                 return cx231xx_init_bulk(dev, CX231XX_DVB_MAX_PACKETS,
 275                                         CX231XX_DVB_NUM_BUFS,
 276                                         dev->ts1_mode.max_pkt_size,
 277                                         dvb_bulk_copy);
 278         }
 279
 280 }
 281
 282 static int stop_streaming(struct cx231xx_dvb *dvb)
 283 {
 284         struct cx231xx *dev = dvb->adapter.priv;
 285
 286         if (dev->USE_ISO)
 287                 cx231xx_uninit_isoc(dev);
 288         else
 289                 cx231xx_uninit_bulk(dev);
 290
 291         cx231xx_set_mode(dev, CX231XX_SUSPEND);
 292
 293         return 0;
 294 }
 295
 296 static int start_feed(struct dvb_demux_feed *feed)
 297 {
 298         struct dvb_demux *demux = feed->demux;
 299         struct cx231xx_dvb *dvb = demux->priv;
 300         int rc, ret;
 301
 302         if (!demux->dmx.frontend)
 303                 return -EINVAL;
 304
 305         mutex_lock(&dvb->lock);
 306         dvb->nfeeds++;
 307         rc = dvb->nfeeds;
 308
 309         if (dvb->nfeeds == 1) {
 310                 ret = start_streaming(dvb);
 311                 if (ret < 0)
 312                         rc = ret;
 313         }
 314
 315         mutex_unlock(&dvb->lock);
 316         return rc;
 317 }
 318
 319 static int stop_feed(struct dvb_demux_feed *feed)
 320 {
 321         struct dvb_demux *demux = feed->demux;
 322         struct cx231xx_dvb *dvb = demux->priv;
 323         int err = 0;
 324
 325         mutex_lock(&dvb->lock);
 326         dvb->nfeeds--;
 327
 328         if (0 == dvb->nfeeds)
 329                 err = stop_streaming(dvb);
 330
 331         mutex_unlock(&dvb->lock);
 332         return err;
 333 }
 334
 335 /* ------------------------------------------------------------------ */
 336 static int cx231xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
 337 {
 338         struct cx231xx *dev = fe->dvb->priv;
 339
 340         if (acquire)
 341                 return cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
 342         else
 343                 return cx231xx_set_mode(dev, CX231XX_SUSPEND);
 344 }
 345
 346 /* ------------------------------------------------------------------ */
 347
 348 static struct xc5000_config cnxt_rde250_tunerconfig = {
 349         .i2c_address = 0x61,
 350         .if_khz = 4000,
 351 };
 352 static struct xc5000_config cnxt_rdu250_tunerconfig = {
 353         .i2c_address = 0x61,
 354         .if_khz = 3250,
 355 };
 356
 357 /* ------------------------------------------------------------------ */
 358 #if 0
 359 static int attach_xc5000(u8 addr, struct cx231xx *dev)
 360 {
 361
 362         struct dvb_frontend *fe;
 363         struct xc5000_config cfg;
 364
 365         memset(&cfg, 0, sizeof(cfg));
 366         cfg.i2c_adap = &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap;
 367         cfg.i2c_addr = addr;
 368
 369         if (!dev->dvb->frontend) {
 370                 printk(KERN_ERR "%s/2: dvb frontend not attached. "
 371                        "Can't attach xc5000\n", dev->name);
 372                 return -EINVAL;
 373         }
 374
 375         fe = dvb_attach(xc5000_attach, dev->dvb->frontend, &cfg);
 376         if (!fe) {
 377                 printk(KERN_ERR "%s/2: xc5000 attach failed\n", dev->name);
 378                 dvb_frontend_detach(dev->dvb->frontend);
 379                 dev->dvb->frontend = NULL;
 380                 return -EINVAL;
 381         }
 382
 383         printk(KERN_INFO "%s/2: xc5000 attached\n", dev->name);
 384
 385         return 0;
 386 }
 387 #endif
 388
 389 int cx231xx_set_analog_freq(struct cx231xx *dev, u32 freq)
 390 {
 391         int status = 0;
 392
 393         if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
 394
 395                 struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
 396
 397                 if (dops->set_analog_params != NULL) {
 398                         struct analog_parameters params;
 399
 400                         params.frequency = freq;
 401                         params.std = dev->norm;
 402                         params.mode = 0;        /* 0- Air; 1 - cable */
 403                         /*params.audmode = ;       */
 404
 405                         /* Set the analog parameters to set the frequency */
 406                         dops->set_analog_params(dev->dvb->frontend, &params);
 407                 }
 408
 409         }
 410
 411         return status;
 412 }
 413
 414 int cx231xx_reset_analog_tuner(struct cx231xx *dev)
 415 {
 416         int status = 0;
 417
 418         if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
 419
 420                 struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
 421
 422                 if (dops->init != NULL && !dev->xc_fw_load_done) {
 423
 424                         cx231xx_info("Reloading firmware for XC5000\n");
 425                         status = dops->init(dev->dvb->frontend);
 426                         if (status == 0) {
 427                                 dev->xc_fw_load_done = 1;
 428                                 cx231xx_info
 429                                     ("XC5000 firmware download completed\n");
 430                         } else {
 431                                 dev->xc_fw_load_done = 0;
 432                                 cx231xx_info
 433                                     ("XC5000 firmware download failed !!!\n");
 434                         }
 435                 }
 436
 437         }
 438
 439         return status;
 440 }
 441
 442 /* ------------------------------------------------------------------ */
 443
 444 static int register_dvb(struct cx231xx_dvb *dvb,
 445                         struct module *module,
 446                         struct cx231xx *dev, struct device *device)
 447 {
 448         int result;
 449
 450         mutex_init(&dvb->lock);
 451
 452         /* register adapter */
 453         result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
 454                                       adapter_nr);
 455         if (result < 0) {
 456                 printk(KERN_WARNING
 457                        "%s: dvb_register_adapter failed (errno = %d)\n",
 458                        dev->name, result);
 459                 goto fail_adapter;
 460         }
 461
 462         /* Ensure all frontends negotiate bus access */
 463         dvb->frontend->ops.ts_bus_ctrl = cx231xx_dvb_bus_ctrl;
 464
 465         dvb->adapter.priv = dev;
 466
 467         /* register frontend */
 468         result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
 469         if (result < 0) {
 470                 printk(KERN_WARNING
 471                        "%s: dvb_register_frontend failed (errno = %d)\n",
 472                        dev->name, result);
 473                 goto fail_frontend;
 474         }
 475
 476         /* register demux stuff */
 477         dvb->demux.dmx.capabilities =
 478             DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 479             DMX_MEMORY_BASED_FILTERING;
 480         dvb->demux.priv = dvb;
 481         dvb->demux.filternum = 256;
 482         dvb->demux.feednum = 256;
 483         dvb->demux.start_feed = start_feed;
 484         dvb->demux.stop_feed = stop_feed;
 485
 486         result = dvb_dmx_init(&dvb->demux);
 487         if (result < 0) {
 488                 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
 489                        dev->name, result);
 490                 goto fail_dmx;
 491         }
 492
 493         dvb->dmxdev.filternum = 256;
 494         dvb->dmxdev.demux = &dvb->demux.dmx;
 495         dvb->dmxdev.capabilities = 0;
 496         result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
 497         if (result < 0) {
 498                 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
 499                        dev->name, result);
 500                 goto fail_dmxdev;
 501         }
 502
 503         dvb->fe_hw.source = DMX_FRONTEND_0;
 504         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 505         if (result < 0) {
 506                 printk(KERN_WARNING
 507                        "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
 508                        dev->name, result);
 509                 goto fail_fe_hw;
 510         }
 511
 512         dvb->fe_mem.source = DMX_MEMORY_FE;
 513         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 514         if (result < 0) {
 515                 printk(KERN_WARNING
 516                        "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
 517                        dev->name, result);
 518                 goto fail_fe_mem;
 519         }
 520
 521         result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 522         if (result < 0) {
 523                 printk(KERN_WARNING
 524                        "%s: connect_frontend failed (errno = %d)\n", dev->name,
 525                        result);
 526                 goto fail_fe_conn;
 527         }
 528
 529         /* register network adapter */
 530         dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
 531         return 0;
 532
 533 fail_fe_conn:
 534         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 535 fail_fe_mem:
 536         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 537 fail_fe_hw:
 538         dvb_dmxdev_release(&dvb->dmxdev);
 539 fail_dmxdev:
 540         dvb_dmx_release(&dvb->demux);
 541 fail_dmx:
 542         dvb_unregister_frontend(dvb->frontend);
 543 fail_frontend:
 544         dvb_frontend_detach(dvb->frontend);
 545         dvb_unregister_adapter(&dvb->adapter);
 546 fail_adapter:
 547         return result;
 548 }
 549
 550 static void unregister_dvb(struct cx231xx_dvb *dvb)
 551 {
 552         dvb_net_release(&dvb->net);
 553         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 554         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 555         dvb_dmxdev_release(&dvb->dmxdev);
 556         dvb_dmx_release(&dvb->demux);
 557         dvb_unregister_frontend(dvb->frontend);
 558         dvb_frontend_detach(dvb->frontend);
 559         dvb_unregister_adapter(&dvb->adapter);
 560 }
 561
 562 static int dvb_init(struct cx231xx *dev)
 563 {
 564         int result = 0;
 565         struct cx231xx_dvb *dvb;
 566
 567         if (!dev->board.has_dvb) {
 568                 /* This device does not support the extension */
 569                 return 0;
 570         }
 571
 572         dvb = kzalloc(sizeof(struct cx231xx_dvb), GFP_KERNEL);
 573
 574         if (dvb == NULL) {
 575                 printk(KERN_INFO "cx231xx_dvb: memory allocation failed\n");
 576                 return -ENOMEM;
 577         }
 578         dev->dvb = dvb;
 579         dev->cx231xx_set_analog_freq = cx231xx_set_analog_freq;
 580         dev->cx231xx_reset_analog_tuner = cx231xx_reset_analog_tuner;
 581
 582         mutex_lock(&dev->lock);
 583         cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
 584         cx231xx_demod_reset(dev);
 585         /* init frontend */
 586         switch (dev->model) {
 587         case CX231XX_BOARD_CNXT_CARRAERA:
 588         case CX231XX_BOARD_CNXT_RDE_250:
 589
 590                 dev->dvb->frontend = dvb_attach(s5h1432_attach,
 591                                         &dvico_s5h1432_config,
 592                                         &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
 593
 594                 if (dev->dvb->frontend == NULL) {
 595                         printk(DRIVER_NAME
 596                                ": Failed to attach s5h1432 front end\n");
 597                         result = -EINVAL;
 598                         goto out_free;
 599                 }
 600
 601                 /* define general-purpose callback pointer */
 602                 dvb->frontend->callback = cx231xx_tuner_callback;
 603
 604                 if (!dvb_attach(xc5000_attach, dev->dvb->frontend,
 605                                &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
 606                                &cnxt_rde250_tunerconfig)) {
 607                         result = -EINVAL;
 608                         goto out_free;
 609                 }
 610
 611                 break;
 612         case CX231XX_BOARD_CNXT_SHELBY:
 613         case CX231XX_BOARD_CNXT_RDU_250:
 614
 615                 dev->dvb->frontend = dvb_attach(s5h1411_attach,
 616                                                &xc5000_s5h1411_config,
 617                                                &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
 618
 619                 if (dev->dvb->frontend == NULL) {
 620                         printk(DRIVER_NAME
 621                                ": Failed to attach s5h1411 front end\n");
 622                         result = -EINVAL;
 623                         goto out_free;
 624                 }
 625
 626                 /* define general-purpose callback pointer */
 627                 dvb->frontend->callback = cx231xx_tuner_callback;
 628
 629                 if (!dvb_attach(xc5000_attach, dev->dvb->frontend,
 630                                &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
 631                                &cnxt_rdu250_tunerconfig)) {
 632                         result = -EINVAL;
 633                         goto out_free;
 634                 }
 635                 break;
 636         case CX231XX_BOARD_CNXT_RDE_253S:
 637
 638                 dev->dvb->frontend = dvb_attach(s5h1432_attach,
 639                                         &dvico_s5h1432_config,
 640                                         &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
 641
 642                 if (dev->dvb->frontend == NULL) {
 643                         printk(DRIVER_NAME
 644                                ": Failed to attach s5h1432 front end\n");
 645                         result = -EINVAL;
 646                         goto out_free;
 647                 }
 648
 649                 /* define general-purpose callback pointer */
 650                 dvb->frontend->callback = cx231xx_tuner_callback;
 651
 652                 if (!dvb_attach(tda18271_attach, dev->dvb->frontend,
 653                                0x60, &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
 654                                &cnxt_rde253s_tunerconfig)) {
 655                         result = -EINVAL;
 656                         goto out_free;
 657                 }
 658                 break;
 659         case CX231XX_BOARD_CNXT_RDU_253S:
 660
 661                 dev->dvb->frontend = dvb_attach(s5h1411_attach,
 662                                                &tda18271_s5h1411_config,
 663                                                &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
 664
 665                 if (dev->dvb->frontend == NULL) {
 666                         printk(DRIVER_NAME
 667                                ": Failed to attach s5h1411 front end\n");
 668                         result = -EINVAL;
 669                         goto out_free;
 670                 }
 671
 672                 /* define general-purpose callback pointer */
 673                 dvb->frontend->callback = cx231xx_tuner_callback;
 674
 675                 if (!dvb_attach(tda18271_attach, dev->dvb->frontend,
 676                                0x60, &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
 677                                &cnxt_rde253s_tunerconfig)) {
 678                         result = -EINVAL;
 679                         goto out_free;
 680                 }
 681                 break;
 682         case CX231XX_BOARD_HAUPPAUGE_EXETER:
 683
 684                 printk(KERN_INFO "%s: looking for tuner / demod on i2c bus: %d\n",
 685                        __func__, i2c_adapter_id(&dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap));
 686
 687                 dev->dvb->frontend = dvb_attach(lgdt3305_attach,
 688                                                 &hcw_lgdt3305_config,
 689                                                 &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap);
 690
 691                 if (dev->dvb->frontend == NULL) {
 692                         printk(DRIVER_NAME
 693                                ": Failed to attach LG3305 front end\n");
 694                         result = -EINVAL;
 695                         goto out_free;
 696                 }
 697
 698                 /* define general-purpose callback pointer */
 699                 dvb->frontend->callback = cx231xx_tuner_callback;
 700
 701                 dvb_attach(tda18271_attach, dev->dvb->frontend,
 702                            0x60, &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
 703                            &hcw_tda18271_config);
 704                 break;
 705
 706         case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
 707
 708                 printk(KERN_INFO "%s: looking for demod on i2c bus: %d\n",
 709                        __func__, i2c_adapter_id(&dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap));
 710
 711                 dev->dvb->frontend = dvb_attach(mb86a20s_attach,
 712                                                 &pv_mb86a20s_config,
 713                                                 &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
 714
 715                 if (dev->dvb->frontend == NULL) {
 716                         printk(DRIVER_NAME
 717                                ": Failed to attach mb86a20s demod\n");
 718                         result = -EINVAL;
 719                         goto out_free;
 720                 }
 721
 722                 /* define general-purpose callback pointer */
 723                 dvb->frontend->callback = cx231xx_tuner_callback;
 724
 725                 dvb_attach(tda18271_attach, dev->dvb->frontend,
 726                            0x60, &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
 727                            &pv_tda18271_config);
 728                 break;
 729
 730         default:
 731                 printk(KERN_ERR "%s/2: The frontend of your DVB/ATSC card"
 732                        " isn't supported yet\n", dev->name);
 733                 break;
 734         }
 735         if (NULL == dvb->frontend) {
 736                 printk(KERN_ERR
 737                        "%s/2: frontend initialization failed\n", dev->name);
 738                 result = -EINVAL;
 739                 goto out_free;
 740         }
 741
 742         /* register everything */
 743         result = register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
 744
 745         if (result < 0)
 746                 goto out_free;
 747
 748
 749         printk(KERN_INFO "Successfully loaded cx231xx-dvb\n");
 750
 751 ret:
 752         cx231xx_set_mode(dev, CX231XX_SUSPEND);
 753         mutex_unlock(&dev->lock);
 754         return result;
 755
 756 out_free:
 757         kfree(dvb);
 758         dev->dvb = NULL;
 759         goto ret;
 760 }
 761
 762 static int dvb_fini(struct cx231xx *dev)
 763 {
 764         if (!dev->board.has_dvb) {
 765                 /* This device does not support the extension */
 766                 return 0;
 767         }
 768
 769         if (dev->dvb) {
 770                 unregister_dvb(dev->dvb);
 771                 dev->dvb = NULL;
 772         }
 773
 774         return 0;
 775 }
 776
 777 static struct cx231xx_ops dvb_ops = {
 778         .id = CX231XX_DVB,
 779         .name = "Cx231xx dvb Extension",
 780         .init = dvb_init,
 781         .fini = dvb_fini,
 782 };
 783
 784 static int __init cx231xx_dvb_register(void)
 785 {
 786         return cx231xx_register_extension(&dvb_ops);
 787 }
 788
 789 static void __exit cx231xx_dvb_unregister(void)
 790 {
 791         cx231xx_unregister_extension(&dvb_ops);
 792 }
 793
 794 module_init(cx231xx_dvb_register);
 795 module_exit(cx231xx_dvb_unregister);