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_demod;
  69         struct i2c_client *i2c_client_tuner;
  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 = 4000, .agc_mode = 3, .std = 4,
  93                       .if_lvl = 0, .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 struct lgdt3306a_config hauppauge_955q_lgdt3306a_config = {
 155         .i2c_addr           = 0x59,
 156         .qam_if_khz         = 4000,
 157         .vsb_if_khz         = 3250,
 158         .deny_i2c_rptr      = 1,
 159         .spectral_inversion = 1,
 160         .mpeg_mode          = LGDT3306A_MPEG_SERIAL,
 161         .tpclk_edge         = LGDT3306A_TPCLK_RISING_EDGE,
 162         .tpvalid_polarity   = LGDT3306A_TP_VALID_HIGH,
 163         .xtalMHz            = 25,
 164 };
 165
 166 static inline void print_err_status(struct cx231xx *dev, int packet, int status)
 167 {
 168         char *errmsg = "Unknown";
 169
 170         switch (status) {
 171         case -ENOENT:
 172                 errmsg = "unlinked synchronuously";
 173                 break;
 174         case -ECONNRESET:
 175                 errmsg = "unlinked asynchronuously";
 176                 break;
 177         case -ENOSR:
 178                 errmsg = "Buffer error (overrun)";
 179                 break;
 180         case -EPIPE:
 181                 errmsg = "Stalled (device not responding)";
 182                 break;
 183         case -EOVERFLOW:
 184                 errmsg = "Babble (bad cable?)";
 185                 break;
 186         case -EPROTO:
 187                 errmsg = "Bit-stuff error (bad cable?)";
 188                 break;
 189         case -EILSEQ:
 190                 errmsg = "CRC/Timeout (could be anything)";
 191                 break;
 192         case -ETIME:
 193                 errmsg = "Device does not respond";
 194                 break;
 195         }
 196         if (packet < 0) {
 197                 dev_dbg(dev->dev,
 198                         "URB status %d [%s].\n", status, errmsg);
 199         } else {
 200                 dev_dbg(dev->dev,
 201                         "URB packet %d, status %d [%s].\n",
 202                         packet, status, errmsg);
 203         }
 204 }
 205
 206 static inline int dvb_isoc_copy(struct cx231xx *dev, struct urb *urb)
 207 {
 208         int i;
 209
 210         if (!dev)
 211                 return 0;
 212
 213         if (dev->state & DEV_DISCONNECTED)
 214                 return 0;
 215
 216         if (urb->status < 0) {
 217                 print_err_status(dev, -1, urb->status);
 218                 if (urb->status == -ENOENT)
 219                         return 0;
 220         }
 221
 222         for (i = 0; i < urb->number_of_packets; i++) {
 223                 int status = urb->iso_frame_desc[i].status;
 224
 225                 if (status < 0) {
 226                         print_err_status(dev, i, status);
 227                         if (urb->iso_frame_desc[i].status != -EPROTO)
 228                                 continue;
 229                 }
 230
 231                 dvb_dmx_swfilter(&dev->dvb->demux,
 232                                  urb->transfer_buffer +
 233                                 urb->iso_frame_desc[i].offset,
 234                                 urb->iso_frame_desc[i].actual_length);
 235         }
 236
 237         return 0;
 238 }
 239
 240 static inline int dvb_bulk_copy(struct cx231xx *dev, struct urb *urb)
 241 {
 242         if (!dev)
 243                 return 0;
 244
 245         if (dev->state & DEV_DISCONNECTED)
 246                 return 0;
 247
 248         if (urb->status < 0) {
 249                 print_err_status(dev, -1, urb->status);
 250                 if (urb->status == -ENOENT)
 251                         return 0;
 252         }
 253
 254         /* Feed the transport payload into the kernel demux */
 255         dvb_dmx_swfilter(&dev->dvb->demux,
 256                 urb->transfer_buffer, urb->actual_length);
 257
 258         return 0;
 259 }
 260
 261 static int start_streaming(struct cx231xx_dvb *dvb)
 262 {
 263         int rc;
 264         struct cx231xx *dev = dvb->adapter.priv;
 265
 266         if (dev->USE_ISO) {
 267                 dev_dbg(dev->dev, "DVB transfer mode is ISO.\n");
 268                 cx231xx_set_alt_setting(dev, INDEX_TS1, 4);
 269                 rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
 270                 if (rc < 0)
 271                         return rc;
 272                 dev->mode_tv = 1;
 273                 return cx231xx_init_isoc(dev, CX231XX_DVB_MAX_PACKETS,
 274                                         CX231XX_DVB_NUM_BUFS,
 275                                         dev->ts1_mode.max_pkt_size,
 276                                         dvb_isoc_copy);
 277         } else {
 278                 dev_dbg(dev->dev, "DVB transfer mode is BULK.\n");
 279                 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
 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_bulk(dev, CX231XX_DVB_MAX_PACKETS,
 285                                         CX231XX_DVB_NUM_BUFS,
 286                                         dev->ts1_mode.max_pkt_size,
 287                                         dvb_bulk_copy);
 288         }
 289
 290 }
 291
 292 static int stop_streaming(struct cx231xx_dvb *dvb)
 293 {
 294         struct cx231xx *dev = dvb->adapter.priv;
 295
 296         if (dev->USE_ISO)
 297                 cx231xx_uninit_isoc(dev);
 298         else
 299                 cx231xx_uninit_bulk(dev);
 300
 301         cx231xx_set_mode(dev, CX231XX_SUSPEND);
 302
 303         return 0;
 304 }
 305
 306 static int start_feed(struct dvb_demux_feed *feed)
 307 {
 308         struct dvb_demux *demux = feed->demux;
 309         struct cx231xx_dvb *dvb = demux->priv;
 310         int rc, ret;
 311
 312         if (!demux->dmx.frontend)
 313                 return -EINVAL;
 314
 315         mutex_lock(&dvb->lock);
 316         dvb->nfeeds++;
 317         rc = dvb->nfeeds;
 318
 319         if (dvb->nfeeds == 1) {
 320                 ret = start_streaming(dvb);
 321                 if (ret < 0)
 322                         rc = ret;
 323         }
 324
 325         mutex_unlock(&dvb->lock);
 326         return rc;
 327 }
 328
 329 static int stop_feed(struct dvb_demux_feed *feed)
 330 {
 331         struct dvb_demux *demux = feed->demux;
 332         struct cx231xx_dvb *dvb = demux->priv;
 333         int err = 0;
 334
 335         mutex_lock(&dvb->lock);
 336         dvb->nfeeds--;
 337
 338         if (0 == dvb->nfeeds)
 339                 err = stop_streaming(dvb);
 340
 341         mutex_unlock(&dvb->lock);
 342         return err;
 343 }
 344
 345 /* ------------------------------------------------------------------ */
 346 static int cx231xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
 347 {
 348         struct cx231xx *dev = fe->dvb->priv;
 349
 350         if (acquire)
 351                 return cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
 352         else
 353                 return cx231xx_set_mode(dev, CX231XX_SUSPEND);
 354 }
 355
 356 /* ------------------------------------------------------------------ */
 357
 358 static struct xc5000_config cnxt_rde250_tunerconfig = {
 359         .i2c_address = 0x61,
 360         .if_khz = 4000,
 361 };
 362 static struct xc5000_config cnxt_rdu250_tunerconfig = {
 363         .i2c_address = 0x61,
 364         .if_khz = 3250,
 365 };
 366
 367 /* ------------------------------------------------------------------ */
 368 #if 0
 369 static int attach_xc5000(u8 addr, struct cx231xx *dev)
 370 {
 371
 372         struct dvb_frontend *fe;
 373         struct xc5000_config cfg;
 374
 375         memset(&cfg, 0, sizeof(cfg));
 376         cfg.i2c_adap = cx231xx_get_i2c_adap(dev, dev->board.tuner_i2c_master);
 377         cfg.i2c_addr = addr;
 378
 379         if (!dev->dvb->frontend) {
 380                 dev_err(dev->dev, "%s/2: dvb frontend not attached. "
 381                        "Can't attach xc5000\n", dev->name);
 382                 return -EINVAL;
 383         }
 384
 385         fe = dvb_attach(xc5000_attach, dev->dvb->frontend, &cfg);
 386         if (!fe) {
 387                 dev_err(dev->dev, "%s/2: xc5000 attach failed\n", dev->name);
 388                 dvb_frontend_detach(dev->dvb->frontend);
 389                 dev->dvb->frontend = NULL;
 390                 return -EINVAL;
 391         }
 392
 393         dev_info(dev->dev, "%s/2: xc5000 attached\n", dev->name);
 394
 395         return 0;
 396 }
 397 #endif
 398
 399 int cx231xx_set_analog_freq(struct cx231xx *dev, u32 freq)
 400 {
 401         if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
 402
 403                 struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
 404
 405                 if (dops->set_analog_params != NULL) {
 406                         struct analog_parameters params;
 407
 408                         params.frequency = freq;
 409                         params.std = dev->norm;
 410                         params.mode = 0;        /* 0- Air; 1 - cable */
 411                         /*params.audmode = ;       */
 412
 413                         /* Set the analog parameters to set the frequency */
 414                         dops->set_analog_params(dev->dvb->frontend, &params);
 415                 }
 416
 417         }
 418
 419         return 0;
 420 }
 421
 422 int cx231xx_reset_analog_tuner(struct cx231xx *dev)
 423 {
 424         int status = 0;
 425
 426         if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
 427
 428                 struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
 429
 430                 if (dops->init != NULL && !dev->xc_fw_load_done) {
 431
 432                         dev_dbg(dev->dev,
 433                                 "Reloading firmware for XC5000\n");
 434                         status = dops->init(dev->dvb->frontend);
 435                         if (status == 0) {
 436                                 dev->xc_fw_load_done = 1;
 437                                 dev_dbg(dev->dev,
 438                                         "XC5000 firmware download completed\n");
 439                         } else {
 440                                 dev->xc_fw_load_done = 0;
 441                                 dev_dbg(dev->dev,
 442                                         "XC5000 firmware download failed !!!\n");
 443                         }
 444                 }
 445
 446         }
 447
 448         return status;
 449 }
 450
 451 /* ------------------------------------------------------------------ */
 452
 453 static int register_dvb(struct cx231xx_dvb *dvb,
 454                         struct module *module,
 455                         struct cx231xx *dev, struct device *device)
 456 {
 457         int result;
 458
 459         mutex_init(&dvb->lock);
 460
 461
 462         /* register adapter */
 463         result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
 464                                       adapter_nr);
 465         if (result < 0) {
 466                 dev_warn(dev->dev,
 467                        "%s: dvb_register_adapter failed (errno = %d)\n",
 468                        dev->name, result);
 469                 goto fail_adapter;
 470         }
 471         dvb_register_media_controller(&dvb->adapter, dev->media_dev);
 472
 473         /* Ensure all frontends negotiate bus access */
 474         dvb->frontend->ops.ts_bus_ctrl = cx231xx_dvb_bus_ctrl;
 475
 476         dvb->adapter.priv = dev;
 477
 478         /* register frontend */
 479         result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
 480         if (result < 0) {
 481                 dev_warn(dev->dev,
 482                        "%s: dvb_register_frontend failed (errno = %d)\n",
 483                        dev->name, result);
 484                 goto fail_frontend;
 485         }
 486
 487         /* register demux stuff */
 488         dvb->demux.dmx.capabilities =
 489             DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 490             DMX_MEMORY_BASED_FILTERING;
 491         dvb->demux.priv = dvb;
 492         dvb->demux.filternum = 256;
 493         dvb->demux.feednum = 256;
 494         dvb->demux.start_feed = start_feed;
 495         dvb->demux.stop_feed = stop_feed;
 496
 497         result = dvb_dmx_init(&dvb->demux);
 498         if (result < 0) {
 499                 dev_warn(dev->dev,
 500                          "%s: dvb_dmx_init failed (errno = %d)\n",
 501                        dev->name, result);
 502                 goto fail_dmx;
 503         }
 504
 505         dvb->dmxdev.filternum = 256;
 506         dvb->dmxdev.demux = &dvb->demux.dmx;
 507         dvb->dmxdev.capabilities = 0;
 508         result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
 509         if (result < 0) {
 510                 dev_warn(dev->dev,
 511                          "%s: dvb_dmxdev_init failed (errno = %d)\n",
 512                          dev->name, result);
 513                 goto fail_dmxdev;
 514         }
 515
 516         dvb->fe_hw.source = DMX_FRONTEND_0;
 517         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 518         if (result < 0) {
 519                 dev_warn(dev->dev,
 520                        "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
 521                        dev->name, result);
 522                 goto fail_fe_hw;
 523         }
 524
 525         dvb->fe_mem.source = DMX_MEMORY_FE;
 526         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 527         if (result < 0) {
 528                 dev_warn(dev->dev,
 529                          "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
 530                          dev->name, result);
 531                 goto fail_fe_mem;
 532         }
 533
 534         result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 535         if (result < 0) {
 536                 dev_warn(dev->dev,
 537                          "%s: connect_frontend failed (errno = %d)\n",
 538                          dev->name, result);
 539                 goto fail_fe_conn;
 540         }
 541
 542         /* register network adapter */
 543         dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
 544         result = dvb_create_media_graph(&dvb->adapter,
 545                                         dev->tuner_type == TUNER_ABSENT);
 546         if (result < 0)
 547                 goto fail_create_graph;
 548
 549         return 0;
 550
 551 fail_create_graph:
 552         dvb_net_release(&dvb->net);
 553 fail_fe_conn:
 554         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 555 fail_fe_mem:
 556         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 557 fail_fe_hw:
 558         dvb_dmxdev_release(&dvb->dmxdev);
 559 fail_dmxdev:
 560         dvb_dmx_release(&dvb->demux);
 561 fail_dmx:
 562         dvb_unregister_frontend(dvb->frontend);
 563 fail_frontend:
 564         dvb_frontend_detach(dvb->frontend);
 565         dvb_unregister_adapter(&dvb->adapter);
 566 fail_adapter:
 567         return result;
 568 }
 569
 570 static void unregister_dvb(struct cx231xx_dvb *dvb)
 571 {
 572         struct i2c_client *client;
 573         dvb_net_release(&dvb->net);
 574         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 575         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 576         dvb_dmxdev_release(&dvb->dmxdev);
 577         dvb_dmx_release(&dvb->demux);
 578         /* remove I2C tuner */
 579         client = dvb->i2c_client_tuner;
 580         if (client) {
 581                 module_put(client->dev.driver->owner);
 582                 i2c_unregister_device(client);
 583         }
 584         /* remove I2C demod */
 585         client = dvb->i2c_client_demod;
 586         if (client) {
 587                 module_put(client->dev.driver->owner);
 588                 i2c_unregister_device(client);
 589         }
 590         dvb_unregister_frontend(dvb->frontend);
 591         dvb_frontend_detach(dvb->frontend);
 592         dvb_unregister_adapter(&dvb->adapter);
 593 }
 594
 595 static int dvb_init(struct cx231xx *dev)
 596 {
 597         int result = 0;
 598         struct cx231xx_dvb *dvb;
 599         struct i2c_adapter *tuner_i2c;
 600         struct i2c_adapter *demod_i2c;
 601
 602         if (!dev->board.has_dvb) {
 603                 /* This device does not support the extension */
 604                 return 0;
 605         }
 606
 607         dvb = kzalloc(sizeof(struct cx231xx_dvb), GFP_KERNEL);
 608
 609         if (dvb == NULL) {
 610                 dev_info(dev->dev,
 611                          "cx231xx_dvb: memory allocation failed\n");
 612                 return -ENOMEM;
 613         }
 614         dev->dvb = dvb;
 615         dev->cx231xx_set_analog_freq = cx231xx_set_analog_freq;
 616         dev->cx231xx_reset_analog_tuner = cx231xx_reset_analog_tuner;
 617
 618         tuner_i2c = cx231xx_get_i2c_adap(dev, dev->board.tuner_i2c_master);
 619         demod_i2c = cx231xx_get_i2c_adap(dev, dev->board.demod_i2c_master);
 620         mutex_lock(&dev->lock);
 621         cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
 622         cx231xx_demod_reset(dev);
 623         /* init frontend */
 624         switch (dev->model) {
 625         case CX231XX_BOARD_CNXT_CARRAERA:
 626         case CX231XX_BOARD_CNXT_RDE_250:
 627
 628                 dev->dvb->frontend = dvb_attach(s5h1432_attach,
 629                                         &dvico_s5h1432_config,
 630                                         demod_i2c);
 631
 632                 if (dev->dvb->frontend == NULL) {
 633                         dev_err(dev->dev,
 634                                 "Failed to attach s5h1432 front end\n");
 635                         result = -EINVAL;
 636                         goto out_free;
 637                 }
 638
 639                 /* define general-purpose callback pointer */
 640                 dvb->frontend->callback = cx231xx_tuner_callback;
 641
 642                 if (!dvb_attach(xc5000_attach, dev->dvb->frontend,
 643                                tuner_i2c,
 644                                &cnxt_rde250_tunerconfig)) {
 645                         result = -EINVAL;
 646                         goto out_free;
 647                 }
 648
 649                 break;
 650         case CX231XX_BOARD_CNXT_SHELBY:
 651         case CX231XX_BOARD_CNXT_RDU_250:
 652
 653                 dev->dvb->frontend = dvb_attach(s5h1411_attach,
 654                                                &xc5000_s5h1411_config,
 655                                                demod_i2c);
 656
 657                 if (dev->dvb->frontend == NULL) {
 658                         dev_err(dev->dev,
 659                                 "Failed to attach s5h1411 front end\n");
 660                         result = -EINVAL;
 661                         goto out_free;
 662                 }
 663
 664                 /* define general-purpose callback pointer */
 665                 dvb->frontend->callback = cx231xx_tuner_callback;
 666
 667                 if (!dvb_attach(xc5000_attach, dev->dvb->frontend,
 668                                tuner_i2c,
 669                                &cnxt_rdu250_tunerconfig)) {
 670                         result = -EINVAL;
 671                         goto out_free;
 672                 }
 673                 break;
 674         case CX231XX_BOARD_CNXT_RDE_253S:
 675
 676                 dev->dvb->frontend = dvb_attach(s5h1432_attach,
 677                                         &dvico_s5h1432_config,
 678                                         demod_i2c);
 679
 680                 if (dev->dvb->frontend == NULL) {
 681                         dev_err(dev->dev,
 682                                 "Failed to attach s5h1432 front end\n");
 683                         result = -EINVAL;
 684                         goto out_free;
 685                 }
 686
 687                 /* define general-purpose callback pointer */
 688                 dvb->frontend->callback = cx231xx_tuner_callback;
 689
 690                 if (!dvb_attach(tda18271_attach, dev->dvb->frontend,
 691                                0x60, tuner_i2c,
 692                                &cnxt_rde253s_tunerconfig)) {
 693                         result = -EINVAL;
 694                         goto out_free;
 695                 }
 696                 break;
 697         case CX231XX_BOARD_CNXT_RDU_253S:
 698         case CX231XX_BOARD_KWORLD_UB445_USB_HYBRID:
 699
 700                 dev->dvb->frontend = dvb_attach(s5h1411_attach,
 701                                                &tda18271_s5h1411_config,
 702                                                demod_i2c);
 703
 704                 if (dev->dvb->frontend == NULL) {
 705                         dev_err(dev->dev,
 706                                 "Failed to attach s5h1411 front end\n");
 707                         result = -EINVAL;
 708                         goto out_free;
 709                 }
 710
 711                 /* define general-purpose callback pointer */
 712                 dvb->frontend->callback = cx231xx_tuner_callback;
 713
 714                 if (!dvb_attach(tda18271_attach, dev->dvb->frontend,
 715                                0x60, tuner_i2c,
 716                                &cnxt_rde253s_tunerconfig)) {
 717                         result = -EINVAL;
 718                         goto out_free;
 719                 }
 720                 break;
 721         case CX231XX_BOARD_HAUPPAUGE_EXETER:
 722
 723                 dev_info(dev->dev,
 724                          "%s: looking for tuner / demod on i2c bus: %d\n",
 725                        __func__, i2c_adapter_id(tuner_i2c));
 726
 727                 dev->dvb->frontend = dvb_attach(lgdt3305_attach,
 728                                                 &hcw_lgdt3305_config,
 729                                                 demod_i2c);
 730
 731                 if (dev->dvb->frontend == NULL) {
 732                         dev_err(dev->dev,
 733                                 "Failed to attach LG3305 front end\n");
 734                         result = -EINVAL;
 735                         goto out_free;
 736                 }
 737
 738                 /* define general-purpose callback pointer */
 739                 dvb->frontend->callback = cx231xx_tuner_callback;
 740
 741                 dvb_attach(tda18271_attach, dev->dvb->frontend,
 742                            0x60, tuner_i2c,
 743                            &hcw_tda18271_config);
 744                 break;
 745
 746         case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
 747         {
 748                 struct i2c_client *client;
 749                 struct i2c_board_info info;
 750                 struct si2165_platform_data si2165_pdata;
 751
 752                 /* attach demod */
 753                 memset(&si2165_pdata, 0, sizeof(si2165_pdata));
 754                 si2165_pdata.fe = &dev->dvb->frontend;
 755                 si2165_pdata.chip_mode = SI2165_MODE_PLL_XTAL,
 756                 si2165_pdata.ref_freq_Hz = 16000000,
 757
 758                 memset(&info, 0, sizeof(struct i2c_board_info));
 759                 strlcpy(info.type, "si2165", I2C_NAME_SIZE);
 760                 info.addr = 0x64;
 761                 info.platform_data = &si2165_pdata;
 762                 request_module(info.type);
 763                 client = i2c_new_device(demod_i2c, &info);
 764                 if (client == NULL || client->dev.driver == NULL || dev->dvb->frontend == NULL) {
 765                         dev_err(dev->dev,
 766                                 "Failed to attach SI2165 front end\n");
 767                         result = -EINVAL;
 768                         goto out_free;
 769                 }
 770
 771                 if (!try_module_get(client->dev.driver->owner)) {
 772                         i2c_unregister_device(client);
 773                         result = -ENODEV;
 774                         goto out_free;
 775                 }
 776
 777                 dvb->i2c_client_demod = client;
 778
 779                 dev->dvb->frontend->ops.i2c_gate_ctrl = NULL;
 780
 781                 /* define general-purpose callback pointer */
 782                 dvb->frontend->callback = cx231xx_tuner_callback;
 783
 784                 dvb_attach(tda18271_attach, dev->dvb->frontend,
 785                         0x60,
 786                         tuner_i2c,
 787                         &hcw_tda18271_config);
 788
 789                 dev->cx231xx_reset_analog_tuner = NULL;
 790                 break;
 791         }
 792         case CX231XX_BOARD_HAUPPAUGE_930C_HD_1114xx:
 793         {
 794                 struct i2c_client *client;
 795                 struct i2c_board_info info;
 796                 struct si2165_platform_data si2165_pdata;
 797                 struct si2157_config si2157_config;
 798
 799                 /* attach demod */
 800                 memset(&si2165_pdata, 0, sizeof(si2165_pdata));
 801                 si2165_pdata.fe = &dev->dvb->frontend;
 802                 si2165_pdata.chip_mode = SI2165_MODE_PLL_EXT,
 803                 si2165_pdata.ref_freq_Hz = 24000000,
 804
 805                 memset(&info, 0, sizeof(struct i2c_board_info));
 806                 strlcpy(info.type, "si2165", I2C_NAME_SIZE);
 807                 info.addr = 0x64;
 808                 info.platform_data = &si2165_pdata;
 809                 request_module(info.type);
 810                 client = i2c_new_device(demod_i2c, &info);
 811                 if (client == NULL || client->dev.driver == NULL || dev->dvb->frontend == NULL) {
 812                         dev_err(dev->dev,
 813                                 "Failed to attach SI2165 front end\n");
 814                         result = -EINVAL;
 815                         goto out_free;
 816                 }
 817
 818                 if (!try_module_get(client->dev.driver->owner)) {
 819                         i2c_unregister_device(client);
 820                         result = -ENODEV;
 821                         goto out_free;
 822                 }
 823
 824                 dvb->i2c_client_demod = client;
 825
 826                 memset(&info, 0, sizeof(struct i2c_board_info));
 827
 828                 dev->dvb->frontend->ops.i2c_gate_ctrl = NULL;
 829
 830                 /* define general-purpose callback pointer */
 831                 dvb->frontend->callback = cx231xx_tuner_callback;
 832
 833                 /* attach tuner */
 834                 memset(&si2157_config, 0, sizeof(si2157_config));
 835                 si2157_config.fe = dev->dvb->frontend;
 836 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
 837                 si2157_config.mdev = dev->media_dev;
 838 #endif
 839                 si2157_config.if_port = 1;
 840                 si2157_config.inversion = true;
 841                 strlcpy(info.type, "si2157", I2C_NAME_SIZE);
 842                 info.addr = 0x60;
 843                 info.platform_data = &si2157_config;
 844                 request_module("si2157");
 845
 846                 client = i2c_new_device(
 847                         tuner_i2c,
 848                         &info);
 849                 if (client == NULL || client->dev.driver == NULL) {
 850                         dvb_frontend_detach(dev->dvb->frontend);
 851                         result = -ENODEV;
 852                         goto out_free;
 853                 }
 854
 855                 if (!try_module_get(client->dev.driver->owner)) {
 856                         i2c_unregister_device(client);
 857                         dvb_frontend_detach(dev->dvb->frontend);
 858                         result = -ENODEV;
 859                         goto out_free;
 860                 }
 861
 862                 dev->cx231xx_reset_analog_tuner = NULL;
 863
 864                 dev->dvb->i2c_client_tuner = client;
 865                 break;
 866         }
 867         case CX231XX_BOARD_HAUPPAUGE_955Q:
 868         {
 869                 struct i2c_client *client;
 870                 struct i2c_board_info info;
 871                 struct si2157_config si2157_config;
 872
 873                 memset(&info, 0, sizeof(struct i2c_board_info));
 874
 875                 dev->dvb->frontend = dvb_attach(lgdt3306a_attach,
 876                         &hauppauge_955q_lgdt3306a_config,
 877                         demod_i2c
 878                         );
 879
 880                 if (dev->dvb->frontend == NULL) {
 881                         dev_err(dev->dev,
 882                                 "Failed to attach LGDT3306A frontend.\n");
 883                         result = -EINVAL;
 884                         goto out_free;
 885                 }
 886
 887                 dev->dvb->frontend->ops.i2c_gate_ctrl = NULL;
 888
 889                 /* define general-purpose callback pointer */
 890                 dvb->frontend->callback = cx231xx_tuner_callback;
 891
 892                 /* attach tuner */
 893                 memset(&si2157_config, 0, sizeof(si2157_config));
 894                 si2157_config.fe = dev->dvb->frontend;
 895 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
 896                 si2157_config.mdev = dev->media_dev;
 897 #endif
 898                 si2157_config.if_port = 1;
 899                 si2157_config.inversion = true;
 900                 strlcpy(info.type, "si2157", I2C_NAME_SIZE);
 901                 info.addr = 0x60;
 902                 info.platform_data = &si2157_config;
 903                 request_module("si2157");
 904
 905                 client = i2c_new_device(
 906                         tuner_i2c,
 907                         &info);
 908                 if (client == NULL || client->dev.driver == NULL) {
 909                         dvb_frontend_detach(dev->dvb->frontend);
 910                         result = -ENODEV;
 911                         goto out_free;
 912                 }
 913
 914                 if (!try_module_get(client->dev.driver->owner)) {
 915                         i2c_unregister_device(client);
 916                         dvb_frontend_detach(dev->dvb->frontend);
 917                         result = -ENODEV;
 918                         goto out_free;
 919                 }
 920
 921                 dev->cx231xx_reset_analog_tuner = NULL;
 922
 923                 dev->dvb->i2c_client_tuner = client;
 924                 break;
 925         }
 926         case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
 927         case CX231XX_BOARD_KWORLD_UB430_USB_HYBRID:
 928
 929                 dev_info(dev->dev,
 930                          "%s: looking for demod on i2c bus: %d\n",
 931                          __func__, i2c_adapter_id(tuner_i2c));
 932
 933                 dev->dvb->frontend = dvb_attach(mb86a20s_attach,
 934                                                 &pv_mb86a20s_config,
 935                                                 demod_i2c);
 936
 937                 if (dev->dvb->frontend == NULL) {
 938                         dev_err(dev->dev,
 939                                 "Failed to attach mb86a20s demod\n");
 940                         result = -EINVAL;
 941                         goto out_free;
 942                 }
 943
 944                 /* define general-purpose callback pointer */
 945                 dvb->frontend->callback = cx231xx_tuner_callback;
 946
 947                 dvb_attach(tda18271_attach, dev->dvb->frontend,
 948                            0x60, tuner_i2c,
 949                            &pv_tda18271_config);
 950                 break;
 951
 952         default:
 953                 dev_err(dev->dev,
 954                         "%s/2: The frontend of your DVB/ATSC card isn't supported yet\n",
 955                         dev->name);
 956                 break;
 957         }
 958         if (NULL == dvb->frontend) {
 959                 dev_err(dev->dev,
 960                        "%s/2: frontend initialization failed\n", dev->name);
 961                 result = -EINVAL;
 962                 goto out_free;
 963         }
 964
 965         /* register everything */
 966         result = register_dvb(dvb, THIS_MODULE, dev, dev->dev);
 967
 968         if (result < 0)
 969                 goto out_free;
 970
 971
 972         dev_info(dev->dev, "Successfully loaded cx231xx-dvb\n");
 973
 974 ret:
 975         cx231xx_set_mode(dev, CX231XX_SUSPEND);
 976         mutex_unlock(&dev->lock);
 977         return result;
 978
 979 out_free:
 980         kfree(dvb);
 981         dev->dvb = NULL;
 982         goto ret;
 983 }
 984
 985 static int dvb_fini(struct cx231xx *dev)
 986 {
 987         if (!dev->board.has_dvb) {
 988                 /* This device does not support the extension */
 989                 return 0;
 990         }
 991
 992         if (dev->dvb) {
 993                 unregister_dvb(dev->dvb);
 994                 dev->dvb = NULL;
 995         }
 996
 997         return 0;
 998 }
 999
1000 static struct cx231xx_ops dvb_ops = {
1001         .id = CX231XX_DVB,
1002         .name = "Cx231xx dvb Extension",
1003         .init = dvb_init,
1004         .fini = dvb_fini,
1005 };
1006
1007 static int __init cx231xx_dvb_register(void)
1008 {
1009         return cx231xx_register_extension(&dvb_ops);
1010 }
1011
1012 static void __exit cx231xx_dvb_unregister(void)
1013 {
1014         cx231xx_unregister_extension(&dvb_ops);
1015 }
1016
1017 module_init(cx231xx_dvb_register);
1018 module_exit(cx231xx_dvb_unregister);