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