drivers/media/pci/cx18/cx18-dvb.c

   1 /*
   2  *  cx18 functions for DVB support
   3  *
   4  *  Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
   5  *  Copyright (C) 2008  Andy Walls <awalls@md.metrocast.net>
   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  *
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  */
  22
  23 #include "cx18-version.h"
  24 #include "cx18-dvb.h"
  25 #include "cx18-io.h"
  26 #include "cx18-queue.h"
  27 #include "cx18-streams.h"
  28 #include "cx18-cards.h"
  29 #include "cx18-gpio.h"
  30 #include "s5h1409.h"
  31 #include "mxl5005s.h"
  32 #include "s5h1411.h"
  33 #include "tda18271.h"
  34 #include "zl10353.h"
  35
  36 #include <linux/firmware.h>
  37 #include "mt352.h"
  38 #include "mt352_priv.h"
  39 #include "tuner-xc2028.h"
  40
  41 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  42
  43 #define FWFILE "dvb-cx18-mpc718-mt352.fw"
  44
  45 #define CX18_REG_DMUX_NUM_PORT_0_CONTROL 0xd5a000
  46 #define CX18_CLOCK_ENABLE2               0xc71024
  47 #define CX18_DMUX_CLK_MASK               0x0080
  48
  49 /*
  50  * CX18_CARD_HVR_1600_ESMT
  51  * CX18_CARD_HVR_1600_SAMSUNG
  52  */
  53
  54 static struct mxl5005s_config hauppauge_hvr1600_tuner = {
  55         .i2c_address     = 0xC6 >> 1,
  56         .if_freq         = IF_FREQ_5380000HZ,
  57         .xtal_freq       = CRYSTAL_FREQ_16000000HZ,
  58         .agc_mode        = MXL_SINGLE_AGC,
  59         .tracking_filter = MXL_TF_C_H,
  60         .rssi_enable     = MXL_RSSI_ENABLE,
  61         .cap_select      = MXL_CAP_SEL_ENABLE,
  62         .div_out         = MXL_DIV_OUT_4,
  63         .clock_out       = MXL_CLOCK_OUT_DISABLE,
  64         .output_load     = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
  65         .top             = MXL5005S_TOP_25P2,
  66         .mod_mode        = MXL_DIGITAL_MODE,
  67         .if_mode         = MXL_ZERO_IF,
  68         .qam_gain        = 0x02,
  69         .AgcMasterByte   = 0x00,
  70 };
  71
  72 static struct s5h1409_config hauppauge_hvr1600_config = {
  73         .demod_address = 0x32 >> 1,
  74         .output_mode   = S5H1409_SERIAL_OUTPUT,
  75         .gpio          = S5H1409_GPIO_ON,
  76         .qam_if        = 44000,
  77         .inversion     = S5H1409_INVERSION_OFF,
  78         .status_mode   = S5H1409_DEMODLOCKING,
  79         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
  80         .hvr1600_opt   = S5H1409_HVR1600_OPTIMIZE
  81 };
  82
  83 /*
  84  * CX18_CARD_HVR_1600_S5H1411
  85  */
  86 static struct s5h1411_config hcw_s5h1411_config = {
  87         .output_mode   = S5H1411_SERIAL_OUTPUT,
  88         .gpio          = S5H1411_GPIO_OFF,
  89         .vsb_if        = S5H1411_IF_44000,
  90         .qam_if        = S5H1411_IF_4000,
  91         .inversion     = S5H1411_INVERSION_ON,
  92         .status_mode   = S5H1411_DEMODLOCKING,
  93         .mpeg_timing   = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
  94 };
  95
  96 static struct tda18271_std_map hauppauge_tda18271_std_map = {
  97         .atsc_6   = { .if_freq = 5380, .agc_mode = 3, .std = 3,
  98                       .if_lvl = 6, .rfagc_top = 0x37 },
  99         .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 0,
 100                       .if_lvl = 6, .rfagc_top = 0x37 },
 101 };
 102
 103 static struct tda18271_config hauppauge_tda18271_config = {
 104         .std_map = &hauppauge_tda18271_std_map,
 105         .gate    = TDA18271_GATE_DIGITAL,
 106         .output_opt = TDA18271_OUTPUT_LT_OFF,
 107 };
 108
 109 /*
 110  * CX18_CARD_LEADTEK_DVR3100H
 111  */
 112 /* Information/confirmation of proper config values provided by Terry Wu */
 113 static struct zl10353_config leadtek_dvr3100h_demod = {
 114         .demod_address         = 0x1e >> 1, /* Datasheet suggested straps */
 115         .if2                   = 45600,     /* 4.560 MHz IF from the XC3028 */
 116         .parallel_ts           = 1,         /* Not a serial TS */
 117         .no_tuner              = 1,         /* XC3028 is not behind the gate */
 118         .disable_i2c_gate_ctrl = 1,         /* Disable the I2C gate */
 119 };
 120
 121 /*
 122  * CX18_CARD_YUAN_MPC718
 123  */
 124 /*
 125  * Due to
 126  *
 127  * 1. an absence of information on how to prgram the MT352
 128  * 2. the Linux mt352 module pushing MT352 initialzation off onto us here
 129  *
 130  * We have to use an init sequence that *you* must extract from the Windows
 131  * driver (yuanrap.sys) and which we load as a firmware.
 132  *
 133  * If someone can provide me with a Zarlink MT352 (Intel CE6352?) Design Manual
 134  * with chip programming details, then I can remove this annoyance.
 135  */
 136 static int yuan_mpc718_mt352_reqfw(struct cx18_stream *stream,
 137                                    const struct firmware **fw)
 138 {
 139         struct cx18 *cx = stream->cx;
 140         const char *fn = FWFILE;
 141         int ret;
 142
 143         ret = request_firmware(fw, fn, &cx->pci_dev->dev);
 144         if (ret)
 145                 CX18_ERR("Unable to open firmware file %s\n", fn);
 146         else {
 147                 size_t sz = (*fw)->size;
 148                 if (sz < 2 || sz > 64 || (sz % 2) != 0) {
 149                         CX18_ERR("Firmware %s has a bad size: %lu bytes\n",
 150                                  fn, (unsigned long) sz);
 151                         ret = -EILSEQ;
 152                         release_firmware(*fw);
 153                         *fw = NULL;
 154                 }
 155         }
 156
 157         if (ret) {
 158                 CX18_ERR("The MPC718 board variant with the MT352 DVB-T"
 159                           "demodualtor will not work without it\n");
 160                 CX18_ERR("Run 'linux/Documentation/dvb/get_dvb_firmware "
 161                           "mpc718' if you need the firmware\n");
 162         }
 163         return ret;
 164 }
 165
 166 static int yuan_mpc718_mt352_init(struct dvb_frontend *fe)
 167 {
 168         struct cx18_dvb *dvb = container_of(fe->dvb,
 169                                             struct cx18_dvb, dvb_adapter);
 170         struct cx18_stream *stream = dvb->stream;
 171         const struct firmware *fw = NULL;
 172         int ret;
 173         int i;
 174         u8 buf[3];
 175
 176         ret = yuan_mpc718_mt352_reqfw(stream, &fw);
 177         if (ret)
 178                 return ret;
 179
 180         /* Loop through all the register-value pairs in the firmware file */
 181         for (i = 0; i < fw->size; i += 2) {
 182                 buf[0] = fw->data[i];
 183                 /* Intercept a few registers we want to set ourselves */
 184                 switch (buf[0]) {
 185                 case TRL_NOMINAL_RATE_0:
 186                         /* Set our custom OFDM bandwidth in the case below */
 187                         break;
 188                 case TRL_NOMINAL_RATE_1:
 189                         /* 6 MHz: 64/7 * 6/8 / 20.48 * 2^16 = 0x55b6.db6 */
 190                         /* 7 MHz: 64/7 * 7/8 / 20.48 * 2^16 = 0x6400 */
 191                         /* 8 MHz: 64/7 * 8/8 / 20.48 * 2^16 = 0x7249.249 */
 192                         buf[1] = 0x72;
 193                         buf[2] = 0x49;
 194                         mt352_write(fe, buf, 3);
 195                         break;
 196                 case INPUT_FREQ_0:
 197                         /* Set our custom IF in the case below */
 198                         break;
 199                 case INPUT_FREQ_1:
 200                         /* 4.56 MHz IF: (20.48 - 4.56)/20.48 * 2^14 = 0x31c0 */
 201                         buf[1] = 0x31;
 202                         buf[2] = 0xc0;
 203                         mt352_write(fe, buf, 3);
 204                         break;
 205                 default:
 206                         /* Pass through the register-value pair from the fw */
 207                         buf[1] = fw->data[i+1];
 208                         mt352_write(fe, buf, 2);
 209                         break;
 210                 }
 211         }
 212
 213         buf[0] = (u8) TUNER_GO;
 214         buf[1] = 0x01; /* Go */
 215         mt352_write(fe, buf, 2);
 216         release_firmware(fw);
 217         return 0;
 218 }
 219
 220 static struct mt352_config yuan_mpc718_mt352_demod = {
 221         .demod_address = 0x1e >> 1,
 222         .adc_clock     = 20480,     /* 20.480 MHz */
 223         .if2           =  4560,     /*  4.560 MHz */
 224         .no_tuner      = 1,         /* XC3028 is not behind the gate */
 225         .demod_init    = yuan_mpc718_mt352_init,
 226 };
 227
 228 static struct zl10353_config yuan_mpc718_zl10353_demod = {
 229         .demod_address         = 0x1e >> 1, /* Datasheet suggested straps */
 230         .if2                   = 45600,     /* 4.560 MHz IF from the XC3028 */
 231         .parallel_ts           = 1,         /* Not a serial TS */
 232         .no_tuner              = 1,         /* XC3028 is not behind the gate */
 233         .disable_i2c_gate_ctrl = 1,         /* Disable the I2C gate */
 234 };
 235
 236 static struct zl10353_config gotview_dvd3_zl10353_demod = {
 237         .demod_address         = 0x1e >> 1, /* Datasheet suggested straps */
 238         .if2                   = 45600,     /* 4.560 MHz IF from the XC3028 */
 239         .parallel_ts           = 1,         /* Not a serial TS */
 240         .no_tuner              = 1,         /* XC3028 is not behind the gate */
 241         .disable_i2c_gate_ctrl = 1,         /* Disable the I2C gate */
 242 };
 243
 244 static int dvb_register(struct cx18_stream *stream);
 245
 246 /* Kernel DVB framework calls this when the feed needs to start.
 247  * The CX18 framework should enable the transport DMA handling
 248  * and queue processing.
 249  */
 250 static int cx18_dvb_start_feed(struct dvb_demux_feed *feed)
 251 {
 252         struct dvb_demux *demux = feed->demux;
 253         struct cx18_stream *stream = (struct cx18_stream *) demux->priv;
 254         struct cx18 *cx;
 255         int ret;
 256         u32 v;
 257
 258         if (!stream)
 259                 return -EINVAL;
 260
 261         cx = stream->cx;
 262         CX18_DEBUG_INFO("Start feed: pid = 0x%x index = %d\n",
 263                         feed->pid, feed->index);
 264
 265         mutex_lock(&cx->serialize_lock);
 266         ret = cx18_init_on_first_open(cx);
 267         mutex_unlock(&cx->serialize_lock);
 268         if (ret) {
 269                 CX18_ERR("Failed to initialize firmware starting DVB feed\n");
 270                 return ret;
 271         }
 272         ret = -EINVAL;
 273
 274         switch (cx->card->type) {
 275         case CX18_CARD_HVR_1600_ESMT:
 276         case CX18_CARD_HVR_1600_SAMSUNG:
 277         case CX18_CARD_HVR_1600_S5H1411:
 278                 v = cx18_read_reg(cx, CX18_REG_DMUX_NUM_PORT_0_CONTROL);
 279                 v |= 0x00400000; /* Serial Mode */
 280                 v |= 0x00002000; /* Data Length - Byte */
 281                 v |= 0x00010000; /* Error - Polarity */
 282                 v |= 0x00020000; /* Error - Passthru */
 283                 v |= 0x000c0000; /* Error - Ignore */
 284                 cx18_write_reg(cx, v, CX18_REG_DMUX_NUM_PORT_0_CONTROL);
 285                 break;
 286
 287         case CX18_CARD_LEADTEK_DVR3100H:
 288         case CX18_CARD_YUAN_MPC718:
 289         case CX18_CARD_GOTVIEW_PCI_DVD3:
 290         default:
 291                 /* Assumption - Parallel transport - Signalling
 292                  * undefined or default.
 293                  */
 294                 break;
 295         }
 296
 297         if (!demux->dmx.frontend)
 298                 return -EINVAL;
 299
 300         mutex_lock(&stream->dvb->feedlock);
 301         if (stream->dvb->feeding++ == 0) {
 302                 CX18_DEBUG_INFO("Starting Transport DMA\n");
 303                 mutex_lock(&cx->serialize_lock);
 304                 set_bit(CX18_F_S_STREAMING, &stream->s_flags);
 305                 ret = cx18_start_v4l2_encode_stream(stream);
 306                 if (ret < 0) {
 307                         CX18_DEBUG_INFO("Failed to start Transport DMA\n");
 308                         stream->dvb->feeding--;
 309                         if (stream->dvb->feeding == 0)
 310                                 clear_bit(CX18_F_S_STREAMING, &stream->s_flags);
 311                 }
 312                 mutex_unlock(&cx->serialize_lock);
 313         } else
 314                 ret = 0;
 315         mutex_unlock(&stream->dvb->feedlock);
 316
 317         return ret;
 318 }
 319
 320 /* Kernel DVB framework calls this when the feed needs to stop. */
 321 static int cx18_dvb_stop_feed(struct dvb_demux_feed *feed)
 322 {
 323         struct dvb_demux *demux = feed->demux;
 324         struct cx18_stream *stream = (struct cx18_stream *)demux->priv;
 325         struct cx18 *cx;
 326         int ret = -EINVAL;
 327
 328         if (stream) {
 329                 cx = stream->cx;
 330                 CX18_DEBUG_INFO("Stop feed: pid = 0x%x index = %d\n",
 331                                 feed->pid, feed->index);
 332
 333                 mutex_lock(&stream->dvb->feedlock);
 334                 if (--stream->dvb->feeding == 0) {
 335                         CX18_DEBUG_INFO("Stopping Transport DMA\n");
 336                         mutex_lock(&cx->serialize_lock);
 337                         ret = cx18_stop_v4l2_encode_stream(stream, 0);
 338                         mutex_unlock(&cx->serialize_lock);
 339                 } else
 340                         ret = 0;
 341                 mutex_unlock(&stream->dvb->feedlock);
 342         }
 343
 344         return ret;
 345 }
 346
 347 int cx18_dvb_register(struct cx18_stream *stream)
 348 {
 349         struct cx18 *cx = stream->cx;
 350         struct cx18_dvb *dvb = stream->dvb;
 351         struct dvb_adapter *dvb_adapter;
 352         struct dvb_demux *dvbdemux;
 353         struct dmx_demux *dmx;
 354         int ret;
 355
 356         if (!dvb)
 357                 return -EINVAL;
 358
 359         dvb->enabled = 0;
 360         dvb->stream = stream;
 361
 362         ret = dvb_register_adapter(&dvb->dvb_adapter,
 363                         CX18_DRIVER_NAME,
 364                         THIS_MODULE, &cx->pci_dev->dev, adapter_nr);
 365         if (ret < 0)
 366                 goto err_out;
 367
 368         dvb_adapter = &dvb->dvb_adapter;
 369
 370         dvbdemux = &dvb->demux;
 371
 372         dvbdemux->priv = (void *)stream;
 373
 374         dvbdemux->filternum = 256;
 375         dvbdemux->feednum = 256;
 376         dvbdemux->start_feed = cx18_dvb_start_feed;
 377         dvbdemux->stop_feed = cx18_dvb_stop_feed;
 378         dvbdemux->dmx.capabilities = (DMX_TS_FILTERING |
 379                 DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING);
 380         ret = dvb_dmx_init(dvbdemux);
 381         if (ret < 0)
 382                 goto err_dvb_unregister_adapter;
 383
 384         dmx = &dvbdemux->dmx;
 385
 386         dvb->hw_frontend.source = DMX_FRONTEND_0;
 387         dvb->mem_frontend.source = DMX_MEMORY_FE;
 388         dvb->dmxdev.filternum = 256;
 389         dvb->dmxdev.demux = dmx;
 390
 391         ret = dvb_dmxdev_init(&dvb->dmxdev, dvb_adapter);
 392         if (ret < 0)
 393                 goto err_dvb_dmx_release;
 394
 395         ret = dmx->add_frontend(dmx, &dvb->hw_frontend);
 396         if (ret < 0)
 397                 goto err_dvb_dmxdev_release;
 398
 399         ret = dmx->add_frontend(dmx, &dvb->mem_frontend);
 400         if (ret < 0)
 401                 goto err_remove_hw_frontend;
 402
 403         ret = dmx->connect_frontend(dmx, &dvb->hw_frontend);
 404         if (ret < 0)
 405                 goto err_remove_mem_frontend;
 406
 407         ret = dvb_register(stream);
 408         if (ret < 0)
 409                 goto err_disconnect_frontend;
 410
 411         dvb_net_init(dvb_adapter, &dvb->dvbnet, dmx);
 412
 413         CX18_INFO("DVB Frontend registered\n");
 414         CX18_INFO("Registered DVB adapter%d for %s (%d x %d.%02d kB)\n",
 415                   stream->dvb->dvb_adapter.num, stream->name,
 416                   stream->buffers, stream->buf_size/1024,
 417                   (stream->buf_size * 100 / 1024) % 100);
 418
 419         mutex_init(&dvb->feedlock);
 420         dvb->enabled = 1;
 421         return ret;
 422
 423 err_disconnect_frontend:
 424         dmx->disconnect_frontend(dmx);
 425 err_remove_mem_frontend:
 426         dmx->remove_frontend(dmx, &dvb->mem_frontend);
 427 err_remove_hw_frontend:
 428         dmx->remove_frontend(dmx, &dvb->hw_frontend);
 429 err_dvb_dmxdev_release:
 430         dvb_dmxdev_release(&dvb->dmxdev);
 431 err_dvb_dmx_release:
 432         dvb_dmx_release(dvbdemux);
 433 err_dvb_unregister_adapter:
 434         dvb_unregister_adapter(dvb_adapter);
 435 err_out:
 436         return ret;
 437 }
 438
 439 void cx18_dvb_unregister(struct cx18_stream *stream)
 440 {
 441         struct cx18 *cx = stream->cx;
 442         struct cx18_dvb *dvb = stream->dvb;
 443         struct dvb_adapter *dvb_adapter;
 444         struct dvb_demux *dvbdemux;
 445         struct dmx_demux *dmx;
 446
 447         CX18_INFO("unregister DVB\n");
 448
 449         if (dvb == NULL || !dvb->enabled)
 450                 return;
 451
 452         dvb_adapter = &dvb->dvb_adapter;
 453         dvbdemux = &dvb->demux;
 454         dmx = &dvbdemux->dmx;
 455
 456         dmx->close(dmx);
 457         dvb_net_release(&dvb->dvbnet);
 458         dmx->remove_frontend(dmx, &dvb->mem_frontend);
 459         dmx->remove_frontend(dmx, &dvb->hw_frontend);
 460         dvb_dmxdev_release(&dvb->dmxdev);
 461         dvb_dmx_release(dvbdemux);
 462         dvb_unregister_frontend(dvb->fe);
 463         dvb_frontend_detach(dvb->fe);
 464         dvb_unregister_adapter(dvb_adapter);
 465 }
 466
 467 /* All the DVB attach calls go here, this function get's modified
 468  * for each new card. cx18_dvb_start_feed() will also need changes.
 469  */
 470 static int dvb_register(struct cx18_stream *stream)
 471 {
 472         struct cx18_dvb *dvb = stream->dvb;
 473         struct cx18 *cx = stream->cx;
 474         int ret = 0;
 475
 476         switch (cx->card->type) {
 477         case CX18_CARD_HVR_1600_ESMT:
 478         case CX18_CARD_HVR_1600_SAMSUNG:
 479                 dvb->fe = dvb_attach(s5h1409_attach,
 480                         &hauppauge_hvr1600_config,
 481                         &cx->i2c_adap[0]);
 482                 if (dvb->fe != NULL) {
 483                         dvb_attach(mxl5005s_attach, dvb->fe,
 484                                 &cx->i2c_adap[0],
 485                                 &hauppauge_hvr1600_tuner);
 486                         ret = 0;
 487                 }
 488                 break;
 489         case CX18_CARD_HVR_1600_S5H1411:
 490                 dvb->fe = dvb_attach(s5h1411_attach,
 491                                      &hcw_s5h1411_config,
 492                                      &cx->i2c_adap[0]);
 493                 if (dvb->fe != NULL)
 494                         dvb_attach(tda18271_attach, dvb->fe,
 495                                    0x60, &cx->i2c_adap[0],
 496                                    &hauppauge_tda18271_config);
 497                 break;
 498         case CX18_CARD_LEADTEK_DVR3100H:
 499                 dvb->fe = dvb_attach(zl10353_attach,
 500                                      &leadtek_dvr3100h_demod,
 501                                      &cx->i2c_adap[1]);
 502                 if (dvb->fe != NULL) {
 503                         struct dvb_frontend *fe;
 504                         struct xc2028_config cfg = {
 505                                 .i2c_adap = &cx->i2c_adap[1],
 506                                 .i2c_addr = 0xc2 >> 1,
 507                                 .ctrl = NULL,
 508                         };
 509                         static struct xc2028_ctrl ctrl = {
 510                                 .fname   = XC2028_DEFAULT_FIRMWARE,
 511                                 .max_len = 64,
 512                                 .demod   = XC3028_FE_ZARLINK456,
 513                                 .type    = XC2028_AUTO,
 514                         };
 515
 516                         fe = dvb_attach(xc2028_attach, dvb->fe, &cfg);
 517                         if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
 518                                 fe->ops.tuner_ops.set_config(fe, &ctrl);
 519                 }
 520                 break;
 521         case CX18_CARD_YUAN_MPC718:
 522                 /*
 523                  * TODO
 524                  * Apparently, these cards also could instead have a
 525                  * DiBcom demod supported by one of the db7000 drivers
 526                  */
 527                 dvb->fe = dvb_attach(mt352_attach,
 528                                      &yuan_mpc718_mt352_demod,
 529                                      &cx->i2c_adap[1]);
 530                 if (dvb->fe == NULL)
 531                         dvb->fe = dvb_attach(zl10353_attach,
 532                                              &yuan_mpc718_zl10353_demod,
 533                                              &cx->i2c_adap[1]);
 534                 if (dvb->fe != NULL) {
 535                         struct dvb_frontend *fe;
 536                         struct xc2028_config cfg = {
 537                                 .i2c_adap = &cx->i2c_adap[1],
 538                                 .i2c_addr = 0xc2 >> 1,
 539                                 .ctrl = NULL,
 540                         };
 541                         static struct xc2028_ctrl ctrl = {
 542                                 .fname   = XC2028_DEFAULT_FIRMWARE,
 543                                 .max_len = 64,
 544                                 .demod   = XC3028_FE_ZARLINK456,
 545                                 .type    = XC2028_AUTO,
 546                         };
 547
 548                         fe = dvb_attach(xc2028_attach, dvb->fe, &cfg);
 549                         if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
 550                                 fe->ops.tuner_ops.set_config(fe, &ctrl);
 551                 }
 552                 break;
 553         case CX18_CARD_GOTVIEW_PCI_DVD3:
 554                         dvb->fe = dvb_attach(zl10353_attach,
 555                                              &gotview_dvd3_zl10353_demod,
 556                                              &cx->i2c_adap[1]);
 557                 if (dvb->fe != NULL) {
 558                         struct dvb_frontend *fe;
 559                         struct xc2028_config cfg = {
 560                                 .i2c_adap = &cx->i2c_adap[1],
 561                                 .i2c_addr = 0xc2 >> 1,
 562                                 .ctrl = NULL,
 563                         };
 564                         static struct xc2028_ctrl ctrl = {
 565                                 .fname   = XC2028_DEFAULT_FIRMWARE,
 566                                 .max_len = 64,
 567                                 .demod   = XC3028_FE_ZARLINK456,
 568                                 .type    = XC2028_AUTO,
 569                         };
 570
 571                         fe = dvb_attach(xc2028_attach, dvb->fe, &cfg);
 572                         if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
 573                                 fe->ops.tuner_ops.set_config(fe, &ctrl);
 574                 }
 575                 break;
 576         default:
 577                 /* No Digital Tv Support */
 578                 break;
 579         }
 580
 581         if (dvb->fe == NULL) {
 582                 CX18_ERR("frontend initialization failed\n");
 583                 return -1;
 584         }
 585
 586         dvb->fe->callback = cx18_reset_tuner_gpio;
 587
 588         ret = dvb_register_frontend(&dvb->dvb_adapter, dvb->fe);
 589         if (ret < 0) {
 590                 if (dvb->fe->ops.release)
 591                         dvb->fe->ops.release(dvb->fe);
 592                 return ret;
 593         }
 594
 595         /*
 596          * The firmware seems to enable the TS DMUX clock
 597          * under various circumstances.  However, since we know we
 598          * might use it, let's just turn it on ourselves here.
 599          */
 600         cx18_write_reg_expect(cx,
 601                               (CX18_DMUX_CLK_MASK << 16) | CX18_DMUX_CLK_MASK,
 602                               CX18_CLOCK_ENABLE2,
 603                               CX18_DMUX_CLK_MASK,
 604                               (CX18_DMUX_CLK_MASK << 16) | CX18_DMUX_CLK_MASK);
 605
 606         return ret;
 607 }
 608
 609 MODULE_FIRMWARE(FWFILE);