drivers/media/usb/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 "cx231xx.h"
  23 #include <linux/kernel.h>
  24 #include <linux/slab.h>
  25
  26 #include <media/v4l2-common.h>
  27 #include <media/videobuf-vmalloc.h>
  28 #include <media/tuner.h>
  29
  30 #include "xc5000.h"
  31 #include "s5h1432.h"
  32 #include "tda18271.h"
  33 #include "s5h1411.h"
  34 #include "lgdt3305.h"
  35 #include "si2165.h"
  36 #include "mb86a20s.h"
  37 #include "si2157.h"
  38 #include "lgdt3306a.h"
  39
  40 MODULE_DESCRIPTION("driver for cx231xx based DVB cards");
  41 MODULE_AUTHOR("Srinivasa Deevi <srinivasa.deevi@conexant.com>");
  42 MODULE_LICENSE("GPL");
  43
  44 static unsigned int debug;
  45 module_param(debug, int, 0644);
  46 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
  47
  48 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  49
  50 #define CX231XX_DVB_NUM_BUFS 5
  51 #define CX231XX_DVB_MAX_PACKETSIZE 564
  52 #define CX231XX_DVB_MAX_PACKETS 64
  53
  54 struct cx231xx_dvb {
  55         struct dvb_frontend *frontend;
  56
  57         /* feed count management */
  58         struct mutex lock;
  59         int nfeeds;
  60
  61         /* general boilerplate stuff */
  62         struct dvb_adapter adapter;
  63         struct dvb_demux demux;
  64         struct dmxdev dmxdev;
  65         struct dmx_frontend fe_hw;
  66         struct dmx_frontend fe_mem;
  67         struct dvb_net net;
  68         struct i2c_client *i2c_client_tuner;
  69 };
  70
  71 static struct s5h1432_config dvico_s5h1432_config = {
  72         .output_mode   = S5H1432_SERIAL_OUTPUT,
  73         .gpio          = S5H1432_GPIO_ON,
  74         .qam_if        = S5H1432_IF_4000,
  75         .vsb_if        = S5H1432_IF_4000,
  76         .inversion     = S5H1432_INVERSION_OFF,
  77         .status_mode   = S5H1432_DEMODLOCKING,
  78         .mpeg_timing   = S5H1432_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
  79 };
  80
  81 static struct tda18271_std_map cnxt_rde253s_tda18271_std_map = {
  82         .dvbt_6   = { .if_freq = 4000, .agc_mode = 3, .std = 4,
  83                       .if_lvl = 1, .rfagc_top = 0x37, },
  84         .dvbt_7   = { .if_freq = 4000, .agc_mode = 3, .std = 5,
  85                       .if_lvl = 1, .rfagc_top = 0x37, },
  86         .dvbt_8   = { .if_freq = 4000, .agc_mode = 3, .std = 6,
  87                       .if_lvl = 1, .rfagc_top = 0x37, },
  88 };
  89
  90 static struct tda18271_std_map mb86a20s_tda18271_config = {
  91         .dvbt_6   = { .if_freq = 4000, .agc_mode = 3, .std = 4,
  92                       .if_lvl = 0, .rfagc_top = 0x37, },
  93 };
  94
  95 static struct tda18271_config cnxt_rde253s_tunerconfig = {
  96         .std_map = &cnxt_rde253s_tda18271_std_map,
  97         .gate    = TDA18271_GATE_ANALOG,
  98 };
  99
 100 static struct s5h1411_config tda18271_s5h1411_config = {
 101         .output_mode   = S5H1411_SERIAL_OUTPUT,
 102         .gpio          = S5H1411_GPIO_OFF,
 103         .vsb_if        = S5H1411_IF_3250,
 104         .qam_if        = S5H1411_IF_4000,
 105         .inversion     = S5H1411_INVERSION_ON,
 106         .status_mode   = S5H1411_DEMODLOCKING,
 107         .mpeg_timing   = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 108 };
 109 static struct s5h1411_config xc5000_s5h1411_config = {
 110         .output_mode   = S5H1411_SERIAL_OUTPUT,
 111         .gpio          = S5H1411_GPIO_OFF,
 112         .vsb_if        = S5H1411_IF_3250,
 113         .qam_if        = S5H1411_IF_3250,
 114         .inversion     = S5H1411_INVERSION_OFF,
 115         .status_mode   = S5H1411_DEMODLOCKING,
 116         .mpeg_timing   = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 117 };
 118
 119 static struct lgdt3305_config hcw_lgdt3305_config = {
 120         .i2c_addr           = 0x0e,
 121         .mpeg_mode          = LGDT3305_MPEG_SERIAL,
 122         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 123         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 124         .deny_i2c_rptr      = 1,
 125         .spectral_inversion = 1,
 126         .qam_if_khz         = 4000,
 127         .vsb_if_khz         = 3250,
 128 };
 129
 130 static struct tda18271_std_map hauppauge_tda18271_std_map = {
 131         .atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 4,
 132                       .if_lvl = 1, .rfagc_top = 0x58, },
 133         .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 5,
 134                       .if_lvl = 1, .rfagc_top = 0x58, },
 135 };
 136
 137 static struct tda18271_config hcw_tda18271_config = {
 138         .std_map = &hauppauge_tda18271_std_map,
 139         .gate    = TDA18271_GATE_DIGITAL,
 140 };
 141
 142 static const struct mb86a20s_config pv_mb86a20s_config = {
 143         .demod_address = 0x10,
 144         .is_serial = true,
 145 };
 146
 147 static struct tda18271_config pv_tda18271_config = {
 148         .std_map = &mb86a20s_tda18271_config,
 149         .gate    = TDA18271_GATE_DIGITAL,
 150         .small_i2c = TDA18271_03_BYTE_CHUNK_INIT,
 151 };
 152
 153 static const struct si2165_config hauppauge_930C_HD_1113xx_si2165_config = {
 154         .i2c_addr       = 0x64,
 155         .chip_mode      = SI2165_MODE_PLL_XTAL,
 156         .ref_freq_Hz    = 16000000,
 157 };
 158
 159 static const struct si2165_config pctv_quatro_stick_1114xx_si2165_config = {
 160         .i2c_addr       = 0x64,
 161         .chip_mode      = SI2165_MODE_PLL_EXT,
 162         .ref_freq_Hz    = 24000000,
 163 };
 164
 165 static struct lgdt3306a_config hauppauge_955q_lgdt3306a_config = {
 166         .i2c_addr           = 0x59,
 167         .qam_if_khz         = 4000,
 168         .vsb_if_khz         = 3250,
 169         .deny_i2c_rptr      = 1,
 170         .spectral_inversion = 1,
 171         .mpeg_mode          = LGDT3306A_MPEG_SERIAL,
 172         .tpclk_edge         = LGDT3306A_TPCLK_RISING_EDGE,
 173         .tpvalid_polarity   = LGDT3306A_TP_VALID_HIGH,
 174         .xtalMHz            = 25,
 175 };
 176
 177 static inline void print_err_status(struct cx231xx *dev, int packet, int status)
 178 {
 179         char *errmsg = "Unknown";
 180
 181         switch (status) {
 182         case -ENOENT:
 183                 errmsg = "unlinked synchronuously";
 184                 break;
 185         case -ECONNRESET:
 186                 errmsg = "unlinked asynchronuously";
 187                 break;
 188         case -ENOSR:
 189                 errmsg = "Buffer error (overrun)";
 190                 break;
 191         case -EPIPE:
 192                 errmsg = "Stalled (device not responding)";
 193                 break;
 194         case -EOVERFLOW:
 195                 errmsg = "Babble (bad cable?)";
 196                 break;
 197         case -EPROTO:
 198                 errmsg = "Bit-stuff error (bad cable?)";
 199                 break;
 200         case -EILSEQ:
 201                 errmsg = "CRC/Timeout (could be anything)";
 202                 break;
 203         case -ETIME:
 204                 errmsg = "Device does not respond";
 205                 break;
 206         }
 207         if (packet < 0) {
 208                 dev_dbg(dev->dev,
 209                         "URB status %d [%s].\n", status, errmsg);
 210         } else {
 211                 dev_dbg(dev->dev,
 212                         "URB packet %d, status %d [%s].\n",
 213                         packet, status, errmsg);
 214         }
 215 }
 216
 217 static inline int dvb_isoc_copy(struct cx231xx *dev, struct urb *urb)
 218 {
 219         int i;
 220
 221         if (!dev)
 222                 return 0;
 223
 224         if (dev->state & DEV_DISCONNECTED)
 225                 return 0;
 226
 227         if (urb->status < 0) {
 228                 print_err_status(dev, -1, urb->status);
 229                 if (urb->status == -ENOENT)
 230                         return 0;
 231         }
 232
 233         for (i = 0; i < urb->number_of_packets; i++) {
 234                 int status = urb->iso_frame_desc[i].status;
 235
 236                 if (status < 0) {
 237                         print_err_status(dev, i, status);
 238                         if (urb->iso_frame_desc[i].status != -EPROTO)
 239                                 continue;
 240                 }
 241
 242                 dvb_dmx_swfilter(&dev->dvb->demux,
 243                                  urb->transfer_buffer +
 244                                 urb->iso_frame_desc[i].offset,
 245                                 urb->iso_frame_desc[i].actual_length);
 246         }
 247
 248         return 0;
 249 }
 250
 251 static inline int dvb_bulk_copy(struct cx231xx *dev, struct urb *urb)
 252 {
 253         if (!dev)
 254                 return 0;
 255
 256         if (dev->state & DEV_DISCONNECTED)
 257                 return 0;
 258
 259         if (urb->status < 0) {
 260                 print_err_status(dev, -1, urb->status);
 261                 if (urb->status == -ENOENT)
 262                         return 0;
 263         }
 264
 265         /* Feed the transport payload into the kernel demux */
 266         dvb_dmx_swfilter(&dev->dvb->demux,
 267                 urb->transfer_buffer, urb->actual_length);
 268
 269         return 0;
 270 }
 271
 272 static int start_streaming(struct cx231xx_dvb *dvb)
 273 {
 274         int rc;
 275         struct cx231xx *dev = dvb->adapter.priv;
 276
 277         if (dev->USE_ISO) {
 278                 dev_dbg(dev->dev, "DVB transfer mode is ISO.\n");
 279                 cx231xx_set_alt_setting(dev, INDEX_TS1, 4);
 280                 rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
 281                 if (rc < 0)
 282                         return rc;
 283                 dev->mode_tv = 1;
 284                 return cx231xx_init_isoc(dev, CX231XX_DVB_MAX_PACKETS,
 285                                         CX231XX_DVB_NUM_BUFS,
 286                                         dev->ts1_mode.max_pkt_size,
 287                                         dvb_isoc_copy);
 288         } else {
 289                 dev_dbg(dev->dev, "DVB transfer mode is BULK.\n");
 290                 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
 291                 rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
 292                 if (rc < 0)
 293                         return rc;
 294                 dev->mode_tv = 1;
 295                 return cx231xx_init_bulk(dev, CX231XX_DVB_MAX_PACKETS,
 296                                         CX231XX_DVB_NUM_BUFS,
 297                                         dev->ts1_mode.max_pkt_size,
 298                                         dvb_bulk_copy);
 299         }
 300
 301 }
 302
 303 static int stop_streaming(struct cx231xx_dvb *dvb)
 304 {
 305         struct cx231xx *dev = dvb->adapter.priv;
 306
 307         if (dev->USE_ISO)
 308                 cx231xx_uninit_isoc(dev);
 309         else
 310                 cx231xx_uninit_bulk(dev);
 311
 312         cx231xx_set_mode(dev, CX231XX_SUSPEND);
 313
 314         return 0;
 315 }
 316
 317 static int start_feed(struct dvb_demux_feed *feed)
 318 {
 319         struct dvb_demux *demux = feed->demux;
 320         struct cx231xx_dvb *dvb = demux->priv;
 321         int rc, ret;
 322
 323         if (!demux->dmx.frontend)
 324                 return -EINVAL;
 325
 326         mutex_lock(&dvb->lock);
 327         dvb->nfeeds++;
 328         rc = dvb->nfeeds;
 329
 330         if (dvb->nfeeds == 1) {
 331                 ret = start_streaming(dvb);
 332                 if (ret < 0)
 333                         rc = ret;
 334         }
 335
 336         mutex_unlock(&dvb->lock);
 337         return rc;
 338 }
 339
 340 static int stop_feed(struct dvb_demux_feed *feed)
 341 {
 342         struct dvb_demux *demux = feed->demux;
 343         struct cx231xx_dvb *dvb = demux->priv;
 344         int err = 0;
 345
 346         mutex_lock(&dvb->lock);
 347         dvb->nfeeds--;
 348
 349         if (0 == dvb->nfeeds)
 350                 err = stop_streaming(dvb);
 351
 352         mutex_unlock(&dvb->lock);
 353         return err;
 354 }
 355
 356 /* ------------------------------------------------------------------ */
 357 static int cx231xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
 358 {
 359         struct cx231xx *dev = fe->dvb->priv;
 360
 361         if (acquire)
 362                 return cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
 363         else
 364                 return cx231xx_set_mode(dev, CX231XX_SUSPEND);
 365 }
 366
 367 /* ------------------------------------------------------------------ */
 368
 369 static struct xc5000_config cnxt_rde250_tunerconfig = {
 370         .i2c_address = 0x61,
 371         .if_khz = 4000,
 372 };
 373 static struct xc5000_config cnxt_rdu250_tunerconfig = {
 374         .i2c_address = 0x61,
 375         .if_khz = 3250,
 376 };
 377
 378 /* ------------------------------------------------------------------ */
 379 #if 0
 380 static int attach_xc5000(u8 addr, struct cx231xx *dev)
 381 {
 382
 383         struct dvb_frontend *fe;
 384         struct xc5000_config cfg;
 385
 386         memset(&cfg, 0, sizeof(cfg));
 387         cfg.i2c_adap = cx231xx_get_i2c_adap(dev, dev->board.tuner_i2c_master);
 388         cfg.i2c_addr = addr;
 389
 390         if (!dev->dvb->frontend) {
 391                 dev_err(dev->dev, "%s/2: dvb frontend not attached. "
 392                        "Can't attach xc5000\n", dev->name);
 393                 return -EINVAL;
 394         }
 395
 396         fe = dvb_attach(xc5000_attach, dev->dvb->frontend, &cfg);
 397         if (!fe) {
 398                 dev_err(dev->dev, "%s/2: xc5000 attach failed\n", dev->name);
 399                 dvb_frontend_detach(dev->dvb->frontend);
 400                 dev->dvb->frontend = NULL;
 401                 return -EINVAL;
 402         }
 403
 404         dev_info(dev->dev, "%s/2: xc5000 attached\n", dev->name);
 405
 406         return 0;
 407 }
 408 #endif
 409
 410 int cx231xx_set_analog_freq(struct cx231xx *dev, u32 freq)
 411 {
 412         if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
 413
 414                 struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
 415
 416                 if (dops->set_analog_params != NULL) {
 417                         struct analog_parameters params;
 418
 419                         params.frequency = freq;
 420                         params.std = dev->norm;
 421                         params.mode = 0;        /* 0- Air; 1 - cable */
 422                         /*params.audmode = ;       */
 423
 424                         /* Set the analog parameters to set the frequency */
 425                         dops->set_analog_params(dev->dvb->frontend, &params);
 426                 }
 427
 428         }
 429
 430         return 0;
 431 }
 432
 433 int cx231xx_reset_analog_tuner(struct cx231xx *dev)
 434 {
 435         int status = 0;
 436
 437         if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
 438
 439                 struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
 440
 441                 if (dops->init != NULL && !dev->xc_fw_load_done) {
 442
 443                         dev_dbg(dev->dev,
 444                                 "Reloading firmware for XC5000\n");
 445                         status = dops->init(dev->dvb->frontend);
 446                         if (status == 0) {
 447                                 dev->xc_fw_load_done = 1;
 448                                 dev_dbg(dev->dev,
 449                                         "XC5000 firmware download completed\n");
 450                         } else {
 451                                 dev->xc_fw_load_done = 0;
 452                                 dev_dbg(dev->dev,
 453                                         "XC5000 firmware download failed !!!\n");
 454                         }
 455                 }
 456
 457         }
 458
 459         return status;
 460 }
 461
 462 /* ------------------------------------------------------------------ */
 463
 464 static int register_dvb(struct cx231xx_dvb *dvb,
 465                         struct module *module,
 466                         struct cx231xx *dev, struct device *device)
 467 {
 468         int result;
 469
 470         mutex_init(&dvb->lock);
 471
 472
 473         /* register adapter */
 474         result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
 475                                       adapter_nr);
 476         if (result < 0) {
 477                 dev_warn(dev->dev,
 478                        "%s: dvb_register_adapter failed (errno = %d)\n",
 479                        dev->name, result);
 480                 goto fail_adapter;
 481         }
 482         dvb_register_media_controller(&dvb->adapter, dev->media_dev);
 483
 484         /* Ensure all frontends negotiate bus access */
 485         dvb->frontend->ops.ts_bus_ctrl = cx231xx_dvb_bus_ctrl;
 486
 487         dvb->adapter.priv = dev;
 488
 489         /* register frontend */
 490         result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
 491         if (result < 0) {
 492                 dev_warn(dev->dev,
 493                        "%s: dvb_register_frontend failed (errno = %d)\n",
 494                        dev->name, result);
 495                 goto fail_frontend;
 496         }
 497
 498         /* register demux stuff */
 499         dvb->demux.dmx.capabilities =
 500             DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 501             DMX_MEMORY_BASED_FILTERING;
 502         dvb->demux.priv = dvb;
 503         dvb->demux.filternum = 256;
 504         dvb->demux.feednum = 256;
 505         dvb->demux.start_feed = start_feed;
 506         dvb->demux.stop_feed = stop_feed;
 507
 508         result = dvb_dmx_init(&dvb->demux);
 509         if (result < 0) {
 510                 dev_warn(dev->dev,
 511                          "%s: dvb_dmx_init failed (errno = %d)\n",
 512                        dev->name, result);
 513                 goto fail_dmx;
 514         }
 515
 516         dvb->dmxdev.filternum = 256;
 517         dvb->dmxdev.demux = &dvb->demux.dmx;
 518         dvb->dmxdev.capabilities = 0;
 519         result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
 520         if (result < 0) {
 521                 dev_warn(dev->dev,
 522                          "%s: dvb_dmxdev_init failed (errno = %d)\n",
 523                          dev->name, result);
 524                 goto fail_dmxdev;
 525         }
 526
 527         dvb->fe_hw.source = DMX_FRONTEND_0;
 528         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 529         if (result < 0) {
 530                 dev_warn(dev->dev,
 531                        "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
 532                        dev->name, result);
 533                 goto fail_fe_hw;
 534         }
 535
 536         dvb->fe_mem.source = DMX_MEMORY_FE;
 537         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 538         if (result < 0) {
 539                 dev_warn(dev->dev,
 540                          "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
 541                          dev->name, result);
 542                 goto fail_fe_mem;
 543         }
 544
 545         result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 546         if (result < 0) {
 547                 dev_warn(dev->dev,
 548                          "%s: connect_frontend failed (errno = %d)\n",
 549                          dev->name, result);
 550                 goto fail_fe_conn;
 551         }
 552
 553         /* register network adapter */
 554         dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
 555         result = dvb_create_media_graph(&dvb->adapter,
 556                                         dev->tuner_type == TUNER_ABSENT);
 557         if (result < 0)
 558                 goto fail_create_graph;
 559
 560         return 0;
 561
 562 fail_create_graph:
 563         dvb_net_release(&dvb->net);
 564 fail_fe_conn:
 565         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 566 fail_fe_mem:
 567         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 568 fail_fe_hw:
 569         dvb_dmxdev_release(&dvb->dmxdev);
 570 fail_dmxdev:
 571         dvb_dmx_release(&dvb->demux);
 572 fail_dmx:
 573         dvb_unregister_frontend(dvb->frontend);
 574 fail_frontend:
 575         dvb_frontend_detach(dvb->frontend);
 576         dvb_unregister_adapter(&dvb->adapter);
 577 fail_adapter:
 578         return result;
 579 }
 580
 581 static void unregister_dvb(struct cx231xx_dvb *dvb)
 582 {
 583         struct i2c_client *client;
 584         dvb_net_release(&dvb->net);
 585         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 586         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 587         dvb_dmxdev_release(&dvb->dmxdev);
 588         dvb_dmx_release(&dvb->demux);
 589         client = dvb->i2c_client_tuner;
 590         /* remove I2C tuner */
 591         if (client) {
 592                 module_put(client->dev.driver->owner);
 593                 i2c_unregister_device(client);
 594         }
 595         dvb_unregister_frontend(dvb->frontend);
 596         dvb_frontend_detach(dvb->frontend);
 597         dvb_unregister_adapter(&dvb->adapter);
 598 }
 599
 600 static int dvb_init(struct cx231xx *dev)
 601 {
 602         int result = 0;
 603         struct cx231xx_dvb *dvb;
 604         struct i2c_adapter *tuner_i2c;
 605         struct i2c_adapter *demod_i2c;
 606
 607         if (!dev->board.has_dvb) {
 608                 /* This device does not support the extension */
 609                 return 0;
 610         }
 611
 612         dvb = kzalloc(sizeof(struct cx231xx_dvb), GFP_KERNEL);
 613
 614         if (dvb == NULL) {
 615                 dev_info(dev->dev,
 616                          "cx231xx_dvb: memory allocation failed\n");
 617                 return -ENOMEM;
 618         }
 619         dev->dvb = dvb;
 620         dev->cx231xx_set_analog_freq = cx231xx_set_analog_freq;
 621         dev->cx231xx_reset_analog_tuner = cx231xx_reset_analog_tuner;
 622
 623         tuner_i2c = cx231xx_get_i2c_adap(dev, dev->board.tuner_i2c_master);
 624         demod_i2c = cx231xx_get_i2c_adap(dev, dev->board.demod_i2c_master);
 625         mutex_lock(&dev->lock);
 626         cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
 627         cx231xx_demod_reset(dev);
 628         /* init frontend */
 629         switch (dev->model) {
 630         case CX231XX_BOARD_CNXT_CARRAERA:
 631         case CX231XX_BOARD_CNXT_RDE_250:
 632
 633                 dev->dvb->frontend = dvb_attach(s5h1432_attach,
 634                                         &dvico_s5h1432_config,
 635                                         demod_i2c);
 636
 637                 if (dev->dvb->frontend == NULL) {
 638                         dev_err(dev->dev,
 639                                 "Failed to attach s5h1432 front end\n");
 640                         result = -EINVAL;
 641                         goto out_free;
 642                 }
 643
 644                 /* define general-purpose callback pointer */
 645                 dvb->frontend->callback = cx231xx_tuner_callback;
 646
 647                 if (!dvb_attach(xc5000_attach, dev->dvb->frontend,
 648                                tuner_i2c,
 649                                &cnxt_rde250_tunerconfig)) {
 650                         result = -EINVAL;
 651                         goto out_free;
 652                 }
 653
 654                 break;
 655         case CX231XX_BOARD_CNXT_SHELBY:
 656         case CX231XX_BOARD_CNXT_RDU_250:
 657
 658                 dev->dvb->frontend = dvb_attach(s5h1411_attach,
 659                                                &xc5000_s5h1411_config,
 660                                                demod_i2c);
 661
 662                 if (dev->dvb->frontend == NULL) {
 663                         dev_err(dev->dev,
 664                                 "Failed to attach s5h1411 front end\n");
 665                         result = -EINVAL;
 666                         goto out_free;
 667                 }
 668
 669                 /* define general-purpose callback pointer */
 670                 dvb->frontend->callback = cx231xx_tuner_callback;
 671
 672                 if (!dvb_attach(xc5000_attach, dev->dvb->frontend,
 673                                tuner_i2c,
 674                                &cnxt_rdu250_tunerconfig)) {
 675                         result = -EINVAL;
 676                         goto out_free;
 677                 }
 678                 break;
 679         case CX231XX_BOARD_CNXT_RDE_253S:
 680
 681                 dev->dvb->frontend = dvb_attach(s5h1432_attach,
 682                                         &dvico_s5h1432_config,
 683                                         demod_i2c);
 684
 685                 if (dev->dvb->frontend == NULL) {
 686                         dev_err(dev->dev,
 687                                 "Failed to attach s5h1432 front end\n");
 688                         result = -EINVAL;
 689                         goto out_free;
 690                 }
 691
 692                 /* define general-purpose callback pointer */
 693                 dvb->frontend->callback = cx231xx_tuner_callback;
 694
 695                 if (!dvb_attach(tda18271_attach, dev->dvb->frontend,
 696                                0x60, tuner_i2c,
 697                                &cnxt_rde253s_tunerconfig)) {
 698                         result = -EINVAL;
 699                         goto out_free;
 700                 }
 701                 break;
 702         case CX231XX_BOARD_CNXT_RDU_253S:
 703         case CX231XX_BOARD_KWORLD_UB445_USB_HYBRID:
 704
 705                 dev->dvb->frontend = dvb_attach(s5h1411_attach,
 706                                                &tda18271_s5h1411_config,
 707                                                demod_i2c);
 708
 709                 if (dev->dvb->frontend == NULL) {
 710                         dev_err(dev->dev,
 711                                 "Failed to attach s5h1411 front end\n");
 712                         result = -EINVAL;
 713                         goto out_free;
 714                 }
 715
 716                 /* define general-purpose callback pointer */
 717                 dvb->frontend->callback = cx231xx_tuner_callback;
 718
 719                 if (!dvb_attach(tda18271_attach, dev->dvb->frontend,
 720                                0x60, tuner_i2c,
 721                                &cnxt_rde253s_tunerconfig)) {
 722                         result = -EINVAL;
 723                         goto out_free;
 724                 }
 725                 break;
 726         case CX231XX_BOARD_HAUPPAUGE_EXETER:
 727
 728                 dev_info(dev->dev,
 729                          "%s: looking for tuner / demod on i2c bus: %d\n",
 730                        __func__, i2c_adapter_id(tuner_i2c));
 731
 732                 dev->dvb->frontend = dvb_attach(lgdt3305_attach,
 733                                                 &hcw_lgdt3305_config,
 734                                                 demod_i2c);
 735
 736                 if (dev->dvb->frontend == NULL) {
 737                         dev_err(dev->dev,
 738                                 "Failed to attach LG3305 front end\n");
 739                         result = -EINVAL;
 740                         goto out_free;
 741                 }
 742
 743                 /* define general-purpose callback pointer */
 744                 dvb->frontend->callback = cx231xx_tuner_callback;
 745
 746                 dvb_attach(tda18271_attach, dev->dvb->frontend,
 747                            0x60, tuner_i2c,
 748                            &hcw_tda18271_config);
 749                 break;
 750
 751         case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
 752
 753                 dev->dvb->frontend = dvb_attach(si2165_attach,
 754                         &hauppauge_930C_HD_1113xx_si2165_config,
 755                         demod_i2c
 756                         );
 757
 758                 if (dev->dvb->frontend == NULL) {
 759                         dev_err(dev->dev,
 760                                 "Failed to attach SI2165 front end\n");
 761                         result = -EINVAL;
 762                         goto out_free;
 763                 }
 764
 765                 dev->dvb->frontend->ops.i2c_gate_ctrl = NULL;
 766
 767                 /* define general-purpose callback pointer */
 768                 dvb->frontend->callback = cx231xx_tuner_callback;
 769
 770                 dvb_attach(tda18271_attach, dev->dvb->frontend,
 771                         0x60,
 772                         tuner_i2c,
 773                         &hcw_tda18271_config);
 774
 775                 dev->cx231xx_reset_analog_tuner = NULL;
 776                 break;
 777
 778         case CX231XX_BOARD_HAUPPAUGE_930C_HD_1114xx:
 779         {
 780                 struct i2c_client *client;
 781                 struct i2c_board_info info;
 782                 struct si2157_config si2157_config;
 783
 784                 memset(&info, 0, sizeof(struct i2c_board_info));
 785
 786                 dev->dvb->frontend = dvb_attach(si2165_attach,
 787                         &pctv_quatro_stick_1114xx_si2165_config,
 788                         demod_i2c
 789                         );
 790
 791                 if (dev->dvb->frontend == NULL) {
 792                         dev_err(dev->dev,
 793                                 "Failed to attach SI2165 front end\n");
 794                         result = -EINVAL;
 795                         goto out_free;
 796                 }
 797
 798                 dev->dvb->frontend->ops.i2c_gate_ctrl = NULL;
 799
 800                 /* define general-purpose callback pointer */
 801                 dvb->frontend->callback = cx231xx_tuner_callback;
 802
 803                 /* attach tuner */
 804                 memset(&si2157_config, 0, sizeof(si2157_config));
 805                 si2157_config.fe = dev->dvb->frontend;
 806 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
 807                 si2157_config.mdev = dev->media_dev;
 808 #endif
 809                 si2157_config.if_port = 1;
 810                 si2157_config.inversion = true;
 811                 strlcpy(info.type, "si2157", I2C_NAME_SIZE);
 812                 info.addr = 0x60;
 813                 info.platform_data = &si2157_config;
 814                 request_module("si2157");
 815
 816                 client = i2c_new_device(
 817                         tuner_i2c,
 818                         &info);
 819                 if (client == NULL || client->dev.driver == NULL) {
 820                         dvb_frontend_detach(dev->dvb->frontend);
 821                         result = -ENODEV;
 822                         goto out_free;
 823                 }
 824
 825                 if (!try_module_get(client->dev.driver->owner)) {
 826                         i2c_unregister_device(client);
 827                         dvb_frontend_detach(dev->dvb->frontend);
 828                         result = -ENODEV;
 829                         goto out_free;
 830                 }
 831
 832                 dev->cx231xx_reset_analog_tuner = NULL;
 833
 834                 dev->dvb->i2c_client_tuner = client;
 835                 break;
 836         }
 837         case CX231XX_BOARD_HAUPPAUGE_955Q:
 838         {
 839                 struct i2c_client *client;
 840                 struct i2c_board_info info;
 841                 struct si2157_config si2157_config;
 842
 843                 memset(&info, 0, sizeof(struct i2c_board_info));
 844
 845                 dev->dvb->frontend = dvb_attach(lgdt3306a_attach,
 846                         &hauppauge_955q_lgdt3306a_config,
 847                         demod_i2c
 848                         );
 849
 850                 if (dev->dvb->frontend == NULL) {
 851                         dev_err(dev->dev,
 852                                 "Failed to attach LGDT3306A frontend.\n");
 853                         result = -EINVAL;
 854                         goto out_free;
 855                 }
 856
 857                 dev->dvb->frontend->ops.i2c_gate_ctrl = NULL;
 858
 859                 /* define general-purpose callback pointer */
 860                 dvb->frontend->callback = cx231xx_tuner_callback;
 861
 862                 /* attach tuner */
 863                 memset(&si2157_config, 0, sizeof(si2157_config));
 864                 si2157_config.fe = dev->dvb->frontend;
 865 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
 866                 si2157_config.mdev = dev->media_dev;
 867 #endif
 868                 si2157_config.if_port = 1;
 869                 si2157_config.inversion = true;
 870                 strlcpy(info.type, "si2157", I2C_NAME_SIZE);
 871                 info.addr = 0x60;
 872                 info.platform_data = &si2157_config;
 873                 request_module("si2157");
 874
 875                 client = i2c_new_device(
 876                         tuner_i2c,
 877                         &info);
 878                 if (client == NULL || client->dev.driver == NULL) {
 879                         dvb_frontend_detach(dev->dvb->frontend);
 880                         result = -ENODEV;
 881                         goto out_free;
 882                 }
 883
 884                 if (!try_module_get(client->dev.driver->owner)) {
 885                         i2c_unregister_device(client);
 886                         dvb_frontend_detach(dev->dvb->frontend);
 887                         result = -ENODEV;
 888                         goto out_free;
 889                 }
 890
 891                 dev->cx231xx_reset_analog_tuner = NULL;
 892
 893                 dev->dvb->i2c_client_tuner = client;
 894                 break;
 895         }
 896         case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
 897         case CX231XX_BOARD_KWORLD_UB430_USB_HYBRID:
 898
 899                 dev_info(dev->dev,
 900                          "%s: looking for demod on i2c bus: %d\n",
 901                          __func__, i2c_adapter_id(tuner_i2c));
 902
 903                 dev->dvb->frontend = dvb_attach(mb86a20s_attach,
 904                                                 &pv_mb86a20s_config,
 905                                                 demod_i2c);
 906
 907                 if (dev->dvb->frontend == NULL) {
 908                         dev_err(dev->dev,
 909                                 "Failed to attach mb86a20s demod\n");
 910                         result = -EINVAL;
 911                         goto out_free;
 912                 }
 913
 914                 /* define general-purpose callback pointer */
 915                 dvb->frontend->callback = cx231xx_tuner_callback;
 916
 917                 dvb_attach(tda18271_attach, dev->dvb->frontend,
 918                            0x60, tuner_i2c,
 919                            &pv_tda18271_config);
 920                 break;
 921
 922         default:
 923                 dev_err(dev->dev,
 924                         "%s/2: The frontend of your DVB/ATSC card isn't supported yet\n",
 925                         dev->name);
 926                 break;
 927         }
 928         if (NULL == dvb->frontend) {
 929                 dev_err(dev->dev,
 930                        "%s/2: frontend initialization failed\n", dev->name);
 931                 result = -EINVAL;
 932                 goto out_free;
 933         }
 934
 935         /* register everything */
 936         result = register_dvb(dvb, THIS_MODULE, dev, dev->dev);
 937
 938         if (result < 0)
 939                 goto out_free;
 940
 941
 942         dev_info(dev->dev, "Successfully loaded cx231xx-dvb\n");
 943
 944 ret:
 945         cx231xx_set_mode(dev, CX231XX_SUSPEND);
 946         mutex_unlock(&dev->lock);
 947         return result;
 948
 949 out_free:
 950         kfree(dvb);
 951         dev->dvb = NULL;
 952         goto ret;
 953 }
 954
 955 static int dvb_fini(struct cx231xx *dev)
 956 {
 957         if (!dev->board.has_dvb) {
 958                 /* This device does not support the extension */
 959                 return 0;
 960         }
 961
 962         if (dev->dvb) {
 963                 unregister_dvb(dev->dvb);
 964                 dev->dvb = NULL;
 965         }
 966
 967         return 0;
 968 }
 969
 970 static struct cx231xx_ops dvb_ops = {
 971         .id = CX231XX_DVB,
 972         .name = "Cx231xx dvb Extension",
 973         .init = dvb_init,
 974         .fini = dvb_fini,
 975 };
 976
 977 static int __init cx231xx_dvb_register(void)
 978 {
 979         return cx231xx_register_extension(&dvb_ops);
 980 }
 981
 982 static void __exit cx231xx_dvb_unregister(void)
 983 {
 984         cx231xx_unregister_extension(&dvb_ops);
 985 }
 986
 987 module_init(cx231xx_dvb_register);
 988 module_exit(cx231xx_dvb_unregister);