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 <linux/kernel.h>
  23 #include <linux/slab.h>
  24 #include <linux/usb.h>
  25
  26 #include "cx231xx.h"
  27 #include <media/v4l2-common.h>
  28 #include <media/videobuf-vmalloc.h>
  29
  30 #include "xc5000.h"
  31 #include "s5h1432.h"
  32 #include "tda18271.h"
  33 #include "s5h1411.h"
  34 #include "lgdt3305.h"
  35 #include "si2165.h"
  36 #include "mb86a20s.h"
  37 #include "si2157.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 dprintk(level, fmt, arg...) do {                        \
  50 if (debug >= level)                                             \
  51         printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
  52 } while (0)
  53
  54 #define CX231XX_DVB_NUM_BUFS 5
  55 #define CX231XX_DVB_MAX_PACKETSIZE 564
  56 #define CX231XX_DVB_MAX_PACKETS 64
  57
  58 struct cx231xx_dvb {
  59         struct dvb_frontend *frontend;
  60
  61         /* feed count management */
  62         struct mutex lock;
  63         int nfeeds;
  64
  65         /* general boilerplate stuff */
  66         struct dvb_adapter adapter;
  67         struct dvb_demux demux;
  68         struct dmxdev dmxdev;
  69         struct dmx_frontend fe_hw;
  70         struct dmx_frontend fe_mem;
  71         struct dvb_net net;
  72         struct i2c_client *i2c_client_tuner;
  73 };
  74
  75 static struct s5h1432_config dvico_s5h1432_config = {
  76         .output_mode   = S5H1432_SERIAL_OUTPUT,
  77         .gpio          = S5H1432_GPIO_ON,
  78         .qam_if        = S5H1432_IF_4000,
  79         .vsb_if        = S5H1432_IF_4000,
  80         .inversion     = S5H1432_INVERSION_OFF,
  81         .status_mode   = S5H1432_DEMODLOCKING,
  82         .mpeg_timing   = S5H1432_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
  83 };
  84
  85 static struct tda18271_std_map cnxt_rde253s_tda18271_std_map = {
  86         .dvbt_6   = { .if_freq = 4000, .agc_mode = 3, .std = 4,
  87                       .if_lvl = 1, .rfagc_top = 0x37, },
  88         .dvbt_7   = { .if_freq = 4000, .agc_mode = 3, .std = 5,
  89                       .if_lvl = 1, .rfagc_top = 0x37, },
  90         .dvbt_8   = { .if_freq = 4000, .agc_mode = 3, .std = 6,
  91                       .if_lvl = 1, .rfagc_top = 0x37, },
  92 };
  93
  94 static struct tda18271_std_map mb86a20s_tda18271_config = {
  95         .dvbt_6   = { .if_freq = 4000, .agc_mode = 3, .std = 4,
  96                       .if_lvl = 0, .rfagc_top = 0x37, },
  97 };
  98
  99 static struct tda18271_config cnxt_rde253s_tunerconfig = {
 100         .std_map = &cnxt_rde253s_tda18271_std_map,
 101         .gate    = TDA18271_GATE_ANALOG,
 102 };
 103
 104 static struct s5h1411_config tda18271_s5h1411_config = {
 105         .output_mode   = S5H1411_SERIAL_OUTPUT,
 106         .gpio          = S5H1411_GPIO_OFF,
 107         .vsb_if        = S5H1411_IF_3250,
 108         .qam_if        = S5H1411_IF_4000,
 109         .inversion     = S5H1411_INVERSION_ON,
 110         .status_mode   = S5H1411_DEMODLOCKING,
 111         .mpeg_timing   = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 112 };
 113 static struct s5h1411_config xc5000_s5h1411_config = {
 114         .output_mode   = S5H1411_SERIAL_OUTPUT,
 115         .gpio          = S5H1411_GPIO_OFF,
 116         .vsb_if        = S5H1411_IF_3250,
 117         .qam_if        = S5H1411_IF_3250,
 118         .inversion     = S5H1411_INVERSION_OFF,
 119         .status_mode   = S5H1411_DEMODLOCKING,
 120         .mpeg_timing   = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 121 };
 122
 123 static struct lgdt3305_config hcw_lgdt3305_config = {
 124         .i2c_addr           = 0x0e,
 125         .mpeg_mode          = LGDT3305_MPEG_SERIAL,
 126         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 127         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 128         .deny_i2c_rptr      = 1,
 129         .spectral_inversion = 1,
 130         .qam_if_khz         = 4000,
 131         .vsb_if_khz         = 3250,
 132 };
 133
 134 static struct tda18271_std_map hauppauge_tda18271_std_map = {
 135         .atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 4,
 136                       .if_lvl = 1, .rfagc_top = 0x58, },
 137         .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 5,
 138                       .if_lvl = 1, .rfagc_top = 0x58, },
 139 };
 140
 141 static struct tda18271_config hcw_tda18271_config = {
 142         .std_map = &hauppauge_tda18271_std_map,
 143         .gate    = TDA18271_GATE_DIGITAL,
 144 };
 145
 146 static const struct mb86a20s_config pv_mb86a20s_config = {
 147         .demod_address = 0x10,
 148         .is_serial = true,
 149 };
 150
 151 static struct tda18271_config pv_tda18271_config = {
 152         .std_map = &mb86a20s_tda18271_config,
 153         .gate    = TDA18271_GATE_DIGITAL,
 154         .small_i2c = TDA18271_03_BYTE_CHUNK_INIT,
 155 };
 156
 157 static const struct si2165_config hauppauge_930C_HD_1113xx_si2165_config = {
 158         .i2c_addr       = 0x64,
 159         .chip_mode      = SI2165_MODE_PLL_XTAL,
 160         .ref_freq_Hz    = 16000000,
 161 };
 162
 163 static const struct si2165_config pctv_quatro_stick_1114xx_si2165_config = {
 164         .i2c_addr       = 0x64,
 165         .chip_mode      = SI2165_MODE_PLL_EXT,
 166         .ref_freq_Hz    = 24000000,
 167 };
 168
 169 static inline void print_err_status(struct cx231xx *dev, int packet, int status)
 170 {
 171         char *errmsg = "Unknown";
 172
 173         switch (status) {
 174         case -ENOENT:
 175                 errmsg = "unlinked synchronuously";
 176                 break;
 177         case -ECONNRESET:
 178                 errmsg = "unlinked asynchronuously";
 179                 break;
 180         case -ENOSR:
 181                 errmsg = "Buffer error (overrun)";
 182                 break;
 183         case -EPIPE:
 184                 errmsg = "Stalled (device not responding)";
 185                 break;
 186         case -EOVERFLOW:
 187                 errmsg = "Babble (bad cable?)";
 188                 break;
 189         case -EPROTO:
 190                 errmsg = "Bit-stuff error (bad cable?)";
 191                 break;
 192         case -EILSEQ:
 193                 errmsg = "CRC/Timeout (could be anything)";
 194                 break;
 195         case -ETIME:
 196                 errmsg = "Device does not respond";
 197                 break;
 198         }
 199         if (packet < 0) {
 200                 dprintk(1, "URB status %d [%s].\n", status, errmsg);
 201         } else {
 202                 dprintk(1, "URB packet %d, status %d [%s].\n",
 203                         packet, status, errmsg);
 204         }
 205 }
 206
 207 static inline int dvb_isoc_copy(struct cx231xx *dev, struct urb *urb)
 208 {
 209         int i;
 210
 211         if (!dev)
 212                 return 0;
 213
 214         if (dev->state & DEV_DISCONNECTED)
 215                 return 0;
 216
 217         if (urb->status < 0) {
 218                 print_err_status(dev, -1, urb->status);
 219                 if (urb->status == -ENOENT)
 220                         return 0;
 221         }
 222
 223         for (i = 0; i < urb->number_of_packets; i++) {
 224                 int status = urb->iso_frame_desc[i].status;
 225
 226                 if (status < 0) {
 227                         print_err_status(dev, i, status);
 228                         if (urb->iso_frame_desc[i].status != -EPROTO)
 229                                 continue;
 230                 }
 231
 232                 dvb_dmx_swfilter(&dev->dvb->demux,
 233                                  urb->transfer_buffer +
 234                                 urb->iso_frame_desc[i].offset,
 235                                 urb->iso_frame_desc[i].actual_length);
 236         }
 237
 238         return 0;
 239 }
 240
 241 static inline int dvb_bulk_copy(struct cx231xx *dev, struct urb *urb)
 242 {
 243         if (!dev)
 244                 return 0;
 245
 246         if (dev->state & DEV_DISCONNECTED)
 247                 return 0;
 248
 249         if (urb->status < 0) {
 250                 print_err_status(dev, -1, urb->status);
 251                 if (urb->status == -ENOENT)
 252                         return 0;
 253         }
 254
 255         /* Feed the transport payload into the kernel demux */
 256         dvb_dmx_swfilter(&dev->dvb->demux,
 257                 urb->transfer_buffer, urb->actual_length);
 258
 259         return 0;
 260 }
 261
 262 static int start_streaming(struct cx231xx_dvb *dvb)
 263 {
 264         int rc;
 265         struct cx231xx *dev = dvb->adapter.priv;
 266
 267         if (dev->USE_ISO) {
 268                 cx231xx_info("DVB transfer mode is ISO.\n");
 269                 mutex_lock(&dev->i2c_lock);
 270                 cx231xx_enable_i2c_port_3(dev, false);
 271                 cx231xx_set_alt_setting(dev, INDEX_TS1, 4);
 272                 cx231xx_enable_i2c_port_3(dev, true);
 273                 mutex_unlock(&dev->i2c_lock);
 274                 rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
 275                 if (rc < 0)
 276                         return rc;
 277                 dev->mode_tv = 1;
 278                 return cx231xx_init_isoc(dev, CX231XX_DVB_MAX_PACKETS,
 279                                         CX231XX_DVB_NUM_BUFS,
 280                                         dev->ts1_mode.max_pkt_size,
 281                                         dvb_isoc_copy);
 282         } else {
 283                 cx231xx_info("DVB transfer mode is BULK.\n");
 284                 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
 285                 rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
 286                 if (rc < 0)
 287                         return rc;
 288                 dev->mode_tv = 1;
 289                 return cx231xx_init_bulk(dev, CX231XX_DVB_MAX_PACKETS,
 290                                         CX231XX_DVB_NUM_BUFS,
 291                                         dev->ts1_mode.max_pkt_size,
 292                                         dvb_bulk_copy);
 293         }
 294
 295 }
 296
 297 static int stop_streaming(struct cx231xx_dvb *dvb)
 298 {
 299         struct cx231xx *dev = dvb->adapter.priv;
 300
 301         if (dev->USE_ISO)
 302                 cx231xx_uninit_isoc(dev);
 303         else
 304                 cx231xx_uninit_bulk(dev);
 305
 306         cx231xx_set_mode(dev, CX231XX_SUSPEND);
 307
 308         return 0;
 309 }
 310
 311 static int start_feed(struct dvb_demux_feed *feed)
 312 {
 313         struct dvb_demux *demux = feed->demux;
 314         struct cx231xx_dvb *dvb = demux->priv;
 315         int rc, ret;
 316
 317         if (!demux->dmx.frontend)
 318                 return -EINVAL;
 319
 320         mutex_lock(&dvb->lock);
 321         dvb->nfeeds++;
 322         rc = dvb->nfeeds;
 323
 324         if (dvb->nfeeds == 1) {
 325                 ret = start_streaming(dvb);
 326                 if (ret < 0)
 327                         rc = ret;
 328         }
 329
 330         mutex_unlock(&dvb->lock);
 331         return rc;
 332 }
 333
 334 static int stop_feed(struct dvb_demux_feed *feed)
 335 {
 336         struct dvb_demux *demux = feed->demux;
 337         struct cx231xx_dvb *dvb = demux->priv;
 338         int err = 0;
 339
 340         mutex_lock(&dvb->lock);
 341         dvb->nfeeds--;
 342
 343         if (0 == dvb->nfeeds)
 344                 err = stop_streaming(dvb);
 345
 346         mutex_unlock(&dvb->lock);
 347         return err;
 348 }
 349
 350 /* ------------------------------------------------------------------ */
 351 static int cx231xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
 352 {
 353         struct cx231xx *dev = fe->dvb->priv;
 354
 355         if (acquire)
 356                 return cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
 357         else
 358                 return cx231xx_set_mode(dev, CX231XX_SUSPEND);
 359 }
 360
 361 /* ------------------------------------------------------------------ */
 362
 363 static struct xc5000_config cnxt_rde250_tunerconfig = {
 364         .i2c_address = 0x61,
 365         .if_khz = 4000,
 366 };
 367 static struct xc5000_config cnxt_rdu250_tunerconfig = {
 368         .i2c_address = 0x61,
 369         .if_khz = 3250,
 370 };
 371
 372 /* ------------------------------------------------------------------ */
 373 #if 0
 374 static int attach_xc5000(u8 addr, struct cx231xx *dev)
 375 {
 376
 377         struct dvb_frontend *fe;
 378         struct xc5000_config cfg;
 379
 380         memset(&cfg, 0, sizeof(cfg));
 381         cfg.i2c_adap = &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap;
 382         cfg.i2c_addr = addr;
 383
 384         if (!dev->dvb->frontend) {
 385                 printk(KERN_ERR "%s/2: dvb frontend not attached. "
 386                        "Can't attach xc5000\n", dev->name);
 387                 return -EINVAL;
 388         }
 389
 390         fe = dvb_attach(xc5000_attach, dev->dvb->frontend, &cfg);
 391         if (!fe) {
 392                 printk(KERN_ERR "%s/2: xc5000 attach failed\n", dev->name);
 393                 dvb_frontend_detach(dev->dvb->frontend);
 394                 dev->dvb->frontend = NULL;
 395                 return -EINVAL;
 396         }
 397
 398         printk(KERN_INFO "%s/2: xc5000 attached\n", dev->name);
 399
 400         return 0;
 401 }
 402 #endif
 403
 404 int cx231xx_set_analog_freq(struct cx231xx *dev, u32 freq)
 405 {
 406         int status = 0;
 407
 408         if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
 409
 410                 struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
 411
 412                 if (dops->set_analog_params != NULL) {
 413                         struct analog_parameters params;
 414
 415                         params.frequency = freq;
 416                         params.std = dev->norm;
 417                         params.mode = 0;        /* 0- Air; 1 - cable */
 418                         /*params.audmode = ;       */
 419
 420                         /* Set the analog parameters to set the frequency */
 421                         dops->set_analog_params(dev->dvb->frontend, &params);
 422                 }
 423
 424         }
 425
 426         return status;
 427 }
 428
 429 int cx231xx_reset_analog_tuner(struct cx231xx *dev)
 430 {
 431         int status = 0;
 432
 433         if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
 434
 435                 struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
 436
 437                 if (dops->init != NULL && !dev->xc_fw_load_done) {
 438
 439                         cx231xx_info("Reloading firmware for XC5000\n");
 440                         status = dops->init(dev->dvb->frontend);
 441                         if (status == 0) {
 442                                 dev->xc_fw_load_done = 1;
 443                                 cx231xx_info
 444                                     ("XC5000 firmware download completed\n");
 445                         } else {
 446                                 dev->xc_fw_load_done = 0;
 447                                 cx231xx_info
 448                                     ("XC5000 firmware download failed !!!\n");
 449                         }
 450                 }
 451
 452         }
 453
 454         return status;
 455 }
 456
 457 /* ------------------------------------------------------------------ */
 458
 459 static int register_dvb(struct cx231xx_dvb *dvb,
 460                         struct module *module,
 461                         struct cx231xx *dev, struct device *device)
 462 {
 463         int result;
 464
 465         mutex_init(&dvb->lock);
 466
 467         /* register adapter */
 468         result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
 469                                       adapter_nr);
 470         if (result < 0) {
 471                 printk(KERN_WARNING
 472                        "%s: dvb_register_adapter failed (errno = %d)\n",
 473                        dev->name, result);
 474                 goto fail_adapter;
 475         }
 476
 477         /* Ensure all frontends negotiate bus access */
 478         dvb->frontend->ops.ts_bus_ctrl = cx231xx_dvb_bus_ctrl;
 479
 480         dvb->adapter.priv = dev;
 481
 482         /* register frontend */
 483         result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
 484         if (result < 0) {
 485                 printk(KERN_WARNING
 486                        "%s: dvb_register_frontend failed (errno = %d)\n",
 487                        dev->name, result);
 488                 goto fail_frontend;
 489         }
 490
 491         /* register demux stuff */
 492         dvb->demux.dmx.capabilities =
 493             DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 494             DMX_MEMORY_BASED_FILTERING;
 495         dvb->demux.priv = dvb;
 496         dvb->demux.filternum = 256;
 497         dvb->demux.feednum = 256;
 498         dvb->demux.start_feed = start_feed;
 499         dvb->demux.stop_feed = stop_feed;
 500
 501         result = dvb_dmx_init(&dvb->demux);
 502         if (result < 0) {
 503                 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
 504                        dev->name, result);
 505                 goto fail_dmx;
 506         }
 507
 508         dvb->dmxdev.filternum = 256;
 509         dvb->dmxdev.demux = &dvb->demux.dmx;
 510         dvb->dmxdev.capabilities = 0;
 511         result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
 512         if (result < 0) {
 513                 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
 514                        dev->name, result);
 515                 goto fail_dmxdev;
 516         }
 517
 518         dvb->fe_hw.source = DMX_FRONTEND_0;
 519         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 520         if (result < 0) {
 521                 printk(KERN_WARNING
 522                        "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
 523                        dev->name, result);
 524                 goto fail_fe_hw;
 525         }
 526
 527         dvb->fe_mem.source = DMX_MEMORY_FE;
 528         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 529         if (result < 0) {
 530                 printk(KERN_WARNING
 531                        "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
 532                        dev->name, result);
 533                 goto fail_fe_mem;
 534         }
 535
 536         result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 537         if (result < 0) {
 538                 printk(KERN_WARNING
 539                        "%s: connect_frontend failed (errno = %d)\n", dev->name,
 540                        result);
 541                 goto fail_fe_conn;
 542         }
 543
 544         /* register network adapter */
 545         dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
 546         return 0;
 547
 548 fail_fe_conn:
 549         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 550 fail_fe_mem:
 551         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 552 fail_fe_hw:
 553         dvb_dmxdev_release(&dvb->dmxdev);
 554 fail_dmxdev:
 555         dvb_dmx_release(&dvb->demux);
 556 fail_dmx:
 557         dvb_unregister_frontend(dvb->frontend);
 558 fail_frontend:
 559         dvb_frontend_detach(dvb->frontend);
 560         dvb_unregister_adapter(&dvb->adapter);
 561 fail_adapter:
 562         return result;
 563 }
 564
 565 static void unregister_dvb(struct cx231xx_dvb *dvb)
 566 {
 567         struct i2c_client *client;
 568         dvb_net_release(&dvb->net);
 569         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 570         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 571         dvb_dmxdev_release(&dvb->dmxdev);
 572         dvb_dmx_release(&dvb->demux);
 573         client = dvb->i2c_client_tuner;
 574         /* remove I2C tuner */
 575         if (client) {
 576                 module_put(client->dev.driver->owner);
 577                 i2c_unregister_device(client);
 578         }
 579         dvb_unregister_frontend(dvb->frontend);
 580         dvb_frontend_detach(dvb->frontend);
 581         dvb_unregister_adapter(&dvb->adapter);
 582 }
 583
 584 static int dvb_init(struct cx231xx *dev)
 585 {
 586         int result = 0;
 587         struct cx231xx_dvb *dvb;
 588
 589         if (!dev->board.has_dvb) {
 590                 /* This device does not support the extension */
 591                 return 0;
 592         }
 593
 594         dvb = kzalloc(sizeof(struct cx231xx_dvb), GFP_KERNEL);
 595
 596         if (dvb == NULL) {
 597                 printk(KERN_INFO "cx231xx_dvb: memory allocation failed\n");
 598                 return -ENOMEM;
 599         }
 600         dev->dvb = dvb;
 601         dev->cx231xx_set_analog_freq = cx231xx_set_analog_freq;
 602         dev->cx231xx_reset_analog_tuner = cx231xx_reset_analog_tuner;
 603
 604         mutex_lock(&dev->lock);
 605         cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
 606         cx231xx_demod_reset(dev);
 607         /* init frontend */
 608         switch (dev->model) {
 609         case CX231XX_BOARD_CNXT_CARRAERA:
 610         case CX231XX_BOARD_CNXT_RDE_250:
 611
 612                 dev->dvb->frontend = dvb_attach(s5h1432_attach,
 613                                         &dvico_s5h1432_config,
 614                                         &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
 615
 616                 if (dev->dvb->frontend == NULL) {
 617                         printk(DRIVER_NAME
 618                                ": Failed to attach s5h1432 front end\n");
 619                         result = -EINVAL;
 620                         goto out_free;
 621                 }
 622
 623                 /* define general-purpose callback pointer */
 624                 dvb->frontend->callback = cx231xx_tuner_callback;
 625
 626                 if (!dvb_attach(xc5000_attach, dev->dvb->frontend,
 627                                &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
 628                                &cnxt_rde250_tunerconfig)) {
 629                         result = -EINVAL;
 630                         goto out_free;
 631                 }
 632
 633                 break;
 634         case CX231XX_BOARD_CNXT_SHELBY:
 635         case CX231XX_BOARD_CNXT_RDU_250:
 636
 637                 dev->dvb->frontend = dvb_attach(s5h1411_attach,
 638                                                &xc5000_s5h1411_config,
 639                                                &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
 640
 641                 if (dev->dvb->frontend == NULL) {
 642                         printk(DRIVER_NAME
 643                                ": Failed to attach s5h1411 front end\n");
 644                         result = -EINVAL;
 645                         goto out_free;
 646                 }
 647
 648                 /* define general-purpose callback pointer */
 649                 dvb->frontend->callback = cx231xx_tuner_callback;
 650
 651                 if (!dvb_attach(xc5000_attach, dev->dvb->frontend,
 652                                &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
 653                                &cnxt_rdu250_tunerconfig)) {
 654                         result = -EINVAL;
 655                         goto out_free;
 656                 }
 657                 break;
 658         case CX231XX_BOARD_CNXT_RDE_253S:
 659
 660                 dev->dvb->frontend = dvb_attach(s5h1432_attach,
 661                                         &dvico_s5h1432_config,
 662                                         &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
 663
 664                 if (dev->dvb->frontend == NULL) {
 665                         printk(DRIVER_NAME
 666                                ": Failed to attach s5h1432 front end\n");
 667                         result = -EINVAL;
 668                         goto out_free;
 669                 }
 670
 671                 /* define general-purpose callback pointer */
 672                 dvb->frontend->callback = cx231xx_tuner_callback;
 673
 674                 if (!dvb_attach(tda18271_attach, dev->dvb->frontend,
 675                                0x60, &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
 676                                &cnxt_rde253s_tunerconfig)) {
 677                         result = -EINVAL;
 678                         goto out_free;
 679                 }
 680                 break;
 681         case CX231XX_BOARD_CNXT_RDU_253S:
 682         case CX231XX_BOARD_KWORLD_UB445_USB_HYBRID:
 683
 684                 dev->dvb->frontend = dvb_attach(s5h1411_attach,
 685                                                &tda18271_s5h1411_config,
 686                                                &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
 687
 688                 if (dev->dvb->frontend == NULL) {
 689                         printk(DRIVER_NAME
 690                                ": Failed to attach s5h1411 front end\n");
 691                         result = -EINVAL;
 692                         goto out_free;
 693                 }
 694
 695                 /* define general-purpose callback pointer */
 696                 dvb->frontend->callback = cx231xx_tuner_callback;
 697
 698                 if (!dvb_attach(tda18271_attach, dev->dvb->frontend,
 699                                0x60, &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
 700                                &cnxt_rde253s_tunerconfig)) {
 701                         result = -EINVAL;
 702                         goto out_free;
 703                 }
 704                 break;
 705         case CX231XX_BOARD_HAUPPAUGE_EXETER:
 706
 707                 printk(KERN_INFO "%s: looking for tuner / demod on i2c bus: %d\n",
 708                        __func__, i2c_adapter_id(&dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap));
 709
 710                 dev->dvb->frontend = dvb_attach(lgdt3305_attach,
 711                                                 &hcw_lgdt3305_config,
 712                                                 &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap);
 713
 714                 if (dev->dvb->frontend == NULL) {
 715                         printk(DRIVER_NAME
 716                                ": Failed to attach LG3305 front end\n");
 717                         result = -EINVAL;
 718                         goto out_free;
 719                 }
 720
 721                 /* define general-purpose callback pointer */
 722                 dvb->frontend->callback = cx231xx_tuner_callback;
 723
 724                 dvb_attach(tda18271_attach, dev->dvb->frontend,
 725                            0x60, &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
 726                            &hcw_tda18271_config);
 727                 break;
 728
 729         case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
 730
 731                 dev->dvb->frontend = dvb_attach(si2165_attach,
 732                         &hauppauge_930C_HD_1113xx_si2165_config,
 733                         &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap
 734                         );
 735
 736                 if (dev->dvb->frontend == NULL) {
 737                         printk(DRIVER_NAME
 738                                ": Failed to attach SI2165 front end\n");
 739                         result = -EINVAL;
 740                         goto out_free;
 741                 }
 742
 743                 dev->dvb->frontend->ops.i2c_gate_ctrl = 0;
 744
 745                 /* define general-purpose callback pointer */
 746                 dvb->frontend->callback = cx231xx_tuner_callback;
 747
 748                 dvb_attach(tda18271_attach, dev->dvb->frontend,
 749                         0x60,
 750                         &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
 751                         &hcw_tda18271_config);
 752
 753                 dev->cx231xx_reset_analog_tuner = NULL;
 754                 break;
 755
 756         case CX231XX_BOARD_HAUPPAUGE_930C_HD_1114xx:
 757         {
 758                 struct i2c_client *client;
 759                 struct i2c_board_info info;
 760                 struct si2157_config si2157_config;
 761
 762                 memset(&info, 0, sizeof(struct i2c_board_info));
 763
 764                 dev->dvb->frontend = dvb_attach(si2165_attach,
 765                         &pctv_quatro_stick_1114xx_si2165_config,
 766                         &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap
 767                         );
 768
 769                 if (dev->dvb->frontend == NULL) {
 770                         printk(DRIVER_NAME
 771                                ": Failed to attach SI2165 front end\n");
 772                         result = -EINVAL;
 773                         goto out_free;
 774                 }
 775
 776                 dev->dvb->frontend->ops.i2c_gate_ctrl = 0;
 777
 778                 /* define general-purpose callback pointer */
 779                 dvb->frontend->callback = cx231xx_tuner_callback;
 780
 781                 /* attach tuner */
 782                 memset(&si2157_config, 0, sizeof(si2157_config));
 783                 si2157_config.fe = dev->dvb->frontend;
 784                 si2157_config.inversion = true;
 785                 strlcpy(info.type, "si2157", I2C_NAME_SIZE);
 786                 info.addr = 0x60;
 787                 info.platform_data = &si2157_config;
 788                 request_module("si2157");
 789
 790                 client = i2c_new_device(
 791                         &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
 792                         &info);
 793                 if (client == NULL || client->dev.driver == NULL) {
 794                         dvb_frontend_detach(dev->dvb->frontend);
 795                         result = -ENODEV;
 796                         goto out_free;
 797                 }
 798
 799                 if (!try_module_get(client->dev.driver->owner)) {
 800                         i2c_unregister_device(client);
 801                         dvb_frontend_detach(dev->dvb->frontend);
 802                         result = -ENODEV;
 803                         goto out_free;
 804                 }
 805
 806                 dev->cx231xx_reset_analog_tuner = NULL;
 807
 808                 dev->dvb->i2c_client_tuner = client;
 809                 break;
 810         }
 811
 812         case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
 813         case CX231XX_BOARD_KWORLD_UB430_USB_HYBRID:
 814
 815                 printk(KERN_INFO "%s: looking for demod on i2c bus: %d\n",
 816                        __func__, i2c_adapter_id(&dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap));
 817
 818                 dev->dvb->frontend = dvb_attach(mb86a20s_attach,
 819                                                 &pv_mb86a20s_config,
 820                                                 &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
 821
 822                 if (dev->dvb->frontend == NULL) {
 823                         printk(DRIVER_NAME
 824                                ": Failed to attach mb86a20s demod\n");
 825                         result = -EINVAL;
 826                         goto out_free;
 827                 }
 828
 829                 /* define general-purpose callback pointer */
 830                 dvb->frontend->callback = cx231xx_tuner_callback;
 831
 832                 dvb_attach(tda18271_attach, dev->dvb->frontend,
 833                            0x60, &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
 834                            &pv_tda18271_config);
 835                 break;
 836
 837         default:
 838                 printk(KERN_ERR "%s/2: The frontend of your DVB/ATSC card"
 839                        " isn't supported yet\n", dev->name);
 840                 break;
 841         }
 842         if (NULL == dvb->frontend) {
 843                 printk(KERN_ERR
 844                        "%s/2: frontend initialization failed\n", dev->name);
 845                 result = -EINVAL;
 846                 goto out_free;
 847         }
 848
 849         /* register everything */
 850         result = register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
 851
 852         if (result < 0)
 853                 goto out_free;
 854
 855
 856         printk(KERN_INFO "Successfully loaded cx231xx-dvb\n");
 857
 858 ret:
 859         cx231xx_set_mode(dev, CX231XX_SUSPEND);
 860         mutex_unlock(&dev->lock);
 861         return result;
 862
 863 out_free:
 864         kfree(dvb);
 865         dev->dvb = NULL;
 866         goto ret;
 867 }
 868
 869 static int dvb_fini(struct cx231xx *dev)
 870 {
 871         if (!dev->board.has_dvb) {
 872                 /* This device does not support the extension */
 873                 return 0;
 874         }
 875
 876         if (dev->dvb) {
 877                 unregister_dvb(dev->dvb);
 878                 dev->dvb = NULL;
 879         }
 880
 881         return 0;
 882 }
 883
 884 static struct cx231xx_ops dvb_ops = {
 885         .id = CX231XX_DVB,
 886         .name = "Cx231xx dvb Extension",
 887         .init = dvb_init,
 888         .fini = dvb_fini,
 889 };
 890
 891 static int __init cx231xx_dvb_register(void)
 892 {
 893         return cx231xx_register_extension(&dvb_ops);
 894 }
 895
 896 static void __exit cx231xx_dvb_unregister(void)
 897 {
 898         cx231xx_unregister_extension(&dvb_ops);
 899 }
 900
 901 module_init(cx231xx_dvb_register);
 902 module_exit(cx231xx_dvb_unregister);