drivers/media/usb/em28xx/em28xx-dvb.c

   1 /*
   2  DVB device driver for em28xx
   3
   4  (c) 2008-2011 Mauro Carvalho Chehab <mchehab@infradead.org>
   5
   6  (c) 2008 Devin Heitmueller <devin.heitmueller@gmail.com>
   7         - Fixes for the driver to properly work with HVR-950
   8         - Fixes for the driver to properly work with Pinnacle PCTV HD Pro Stick
   9         - Fixes for the driver to properly work with AMD ATI TV Wonder HD 600
  10
  11  (c) 2008 Aidan Thornton <makosoft@googlemail.com>
  12
  13  (c) 2012 Frank Schäfer <fschaefer.oss@googlemail.com>
  14
  15  Based on cx88-dvb, saa7134-dvb and videobuf-dvb originally written by:
  16         (c) 2004, 2005 Chris Pascoe <c.pascoe@itee.uq.edu.au>
  17         (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
  18
  19  This program is free software; you can redistribute it and/or modify
  20  it under the terms of the GNU General Public License as published by
  21  the Free Software Foundation; either version 2 of the License.
  22  */
  23
  24 #include <linux/kernel.h>
  25 #include <linux/slab.h>
  26 #include <linux/usb.h>
  27
  28 #include "em28xx.h"
  29 #include <media/v4l2-common.h>
  30 #include <dvb_demux.h>
  31 #include <dvb_net.h>
  32 #include <dmxdev.h>
  33 #include <media/tuner.h>
  34 #include "tuner-simple.h"
  35 #include <linux/gpio.h>
  36
  37 #include "lgdt330x.h"
  38 #include "lgdt3305.h"
  39 #include "zl10353.h"
  40 #include "s5h1409.h"
  41 #include "mt2060.h"
  42 #include "mt352.h"
  43 #include "mt352_priv.h" /* FIXME */
  44 #include "tda1002x.h"
  45 #include "drx39xyj/drx39xxj.h"
  46 #include "tda18271.h"
  47 #include "s921.h"
  48 #include "drxd.h"
  49 #include "cxd2820r.h"
  50 #include "tda18271c2dd.h"
  51 #include "drxk.h"
  52 #include "tda10071.h"
  53 #include "tda18212.h"
  54 #include "a8293.h"
  55 #include "qt1010.h"
  56 #include "mb86a20s.h"
  57 #include "m88ds3103.h"
  58 #include "ts2020.h"
  59 #include "si2168.h"
  60 #include "si2157.h"
  61
  62 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
  63 MODULE_LICENSE("GPL");
  64 MODULE_DESCRIPTION(DRIVER_DESC " - digital TV interface");
  65 MODULE_VERSION(EM28XX_VERSION);
  66
  67 static unsigned int debug;
  68 module_param(debug, int, 0644);
  69 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
  70
  71 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  72
  73 #define dprintk(level, fmt, arg...) do {                        \
  74 if (debug >= level)                                             \
  75         printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
  76 } while (0)
  77
  78 struct em28xx_dvb {
  79         struct dvb_frontend        *fe[2];
  80
  81         /* feed count management */
  82         struct mutex               lock;
  83         int                        nfeeds;
  84
  85         /* general boilerplate stuff */
  86         struct dvb_adapter         adapter;
  87         struct dvb_demux           demux;
  88         struct dmxdev              dmxdev;
  89         struct dmx_frontend        fe_hw;
  90         struct dmx_frontend        fe_mem;
  91         struct dvb_net             net;
  92
  93         /* Due to DRX-K - probably need changes */
  94         int (*gate_ctrl)(struct dvb_frontend *, int);
  95         struct semaphore      pll_mutex;
  96         bool                    dont_attach_fe1;
  97         int                     lna_gpio;
  98         struct i2c_client       *i2c_client_demod;
  99         struct i2c_client       *i2c_client_tuner;
 100         struct i2c_client       *i2c_client_sec;
 101 };
 102
 103 static inline void print_err_status(struct em28xx *dev,
 104                                     int packet, int status)
 105 {
 106         char *errmsg = "Unknown";
 107
 108         switch (status) {
 109         case -ENOENT:
 110                 errmsg = "unlinked synchronuously";
 111                 break;
 112         case -ECONNRESET:
 113                 errmsg = "unlinked asynchronuously";
 114                 break;
 115         case -ENOSR:
 116                 errmsg = "Buffer error (overrun)";
 117                 break;
 118         case -EPIPE:
 119                 errmsg = "Stalled (device not responding)";
 120                 break;
 121         case -EOVERFLOW:
 122                 errmsg = "Babble (bad cable?)";
 123                 break;
 124         case -EPROTO:
 125                 errmsg = "Bit-stuff error (bad cable?)";
 126                 break;
 127         case -EILSEQ:
 128                 errmsg = "CRC/Timeout (could be anything)";
 129                 break;
 130         case -ETIME:
 131                 errmsg = "Device does not respond";
 132                 break;
 133         }
 134         if (packet < 0) {
 135                 dprintk(1, "URB status %d [%s].\n", status, errmsg);
 136         } else {
 137                 dprintk(1, "URB packet %d, status %d [%s].\n",
 138                         packet, status, errmsg);
 139         }
 140 }
 141
 142 static inline int em28xx_dvb_urb_data_copy(struct em28xx *dev, struct urb *urb)
 143 {
 144         int xfer_bulk, num_packets, i;
 145
 146         if (!dev)
 147                 return 0;
 148
 149         if (dev->disconnected)
 150                 return 0;
 151
 152         if (urb->status < 0)
 153                 print_err_status(dev, -1, urb->status);
 154
 155         xfer_bulk = usb_pipebulk(urb->pipe);
 156
 157         if (xfer_bulk) /* bulk */
 158                 num_packets = 1;
 159         else /* isoc */
 160                 num_packets = urb->number_of_packets;
 161
 162         for (i = 0; i < num_packets; i++) {
 163                 if (xfer_bulk) {
 164                         if (urb->status < 0) {
 165                                 print_err_status(dev, i, urb->status);
 166                                 if (urb->status != -EPROTO)
 167                                         continue;
 168                         }
 169                         if (!urb->actual_length)
 170                                 continue;
 171                         dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer,
 172                                          urb->actual_length);
 173                 } else {
 174                         if (urb->iso_frame_desc[i].status < 0) {
 175                                 print_err_status(dev, i,
 176                                                  urb->iso_frame_desc[i].status);
 177                                 if (urb->iso_frame_desc[i].status != -EPROTO)
 178                                         continue;
 179                         }
 180                         if (!urb->iso_frame_desc[i].actual_length)
 181                                 continue;
 182                         dvb_dmx_swfilter(&dev->dvb->demux,
 183                                          urb->transfer_buffer +
 184                                          urb->iso_frame_desc[i].offset,
 185                                          urb->iso_frame_desc[i].actual_length);
 186                 }
 187         }
 188
 189         return 0;
 190 }
 191
 192 static int em28xx_start_streaming(struct em28xx_dvb *dvb)
 193 {
 194         int rc;
 195         struct em28xx_i2c_bus *i2c_bus = dvb->adapter.priv;
 196         struct em28xx *dev = i2c_bus->dev;
 197         int dvb_max_packet_size, packet_multiplier, dvb_alt;
 198
 199         if (dev->dvb_xfer_bulk) {
 200                 if (!dev->dvb_ep_bulk)
 201                         return -ENODEV;
 202                 dvb_max_packet_size = 512; /* USB 2.0 spec */
 203                 packet_multiplier = EM28XX_DVB_BULK_PACKET_MULTIPLIER;
 204                 dvb_alt = 0;
 205         } else { /* isoc */
 206                 if (!dev->dvb_ep_isoc)
 207                         return -ENODEV;
 208                 dvb_max_packet_size = dev->dvb_max_pkt_size_isoc;
 209                 if (dvb_max_packet_size < 0)
 210                         return dvb_max_packet_size;
 211                 packet_multiplier = EM28XX_DVB_NUM_ISOC_PACKETS;
 212                 dvb_alt = dev->dvb_alt_isoc;
 213         }
 214
 215         usb_set_interface(dev->udev, dev->ifnum, dvb_alt);
 216         rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 217         if (rc < 0)
 218                 return rc;
 219
 220         dprintk(1, "Using %d buffers each with %d x %d bytes, alternate %d\n",
 221                 EM28XX_DVB_NUM_BUFS,
 222                 packet_multiplier,
 223                 dvb_max_packet_size, dvb_alt);
 224
 225         return em28xx_init_usb_xfer(dev, EM28XX_DIGITAL_MODE,
 226                                     dev->dvb_xfer_bulk,
 227                                     EM28XX_DVB_NUM_BUFS,
 228                                     dvb_max_packet_size,
 229                                     packet_multiplier,
 230                                     em28xx_dvb_urb_data_copy);
 231 }
 232
 233 static int em28xx_stop_streaming(struct em28xx_dvb *dvb)
 234 {
 235         struct em28xx_i2c_bus *i2c_bus = dvb->adapter.priv;
 236         struct em28xx *dev = i2c_bus->dev;
 237
 238         em28xx_stop_urbs(dev);
 239
 240         return 0;
 241 }
 242
 243 static int em28xx_start_feed(struct dvb_demux_feed *feed)
 244 {
 245         struct dvb_demux *demux  = feed->demux;
 246         struct em28xx_dvb *dvb = demux->priv;
 247         int rc, ret;
 248
 249         if (!demux->dmx.frontend)
 250                 return -EINVAL;
 251
 252         mutex_lock(&dvb->lock);
 253         dvb->nfeeds++;
 254         rc = dvb->nfeeds;
 255
 256         if (dvb->nfeeds == 1) {
 257                 ret = em28xx_start_streaming(dvb);
 258                 if (ret < 0)
 259                         rc = ret;
 260         }
 261
 262         mutex_unlock(&dvb->lock);
 263         return rc;
 264 }
 265
 266 static int em28xx_stop_feed(struct dvb_demux_feed *feed)
 267 {
 268         struct dvb_demux *demux  = feed->demux;
 269         struct em28xx_dvb *dvb = demux->priv;
 270         int err = 0;
 271
 272         mutex_lock(&dvb->lock);
 273         dvb->nfeeds--;
 274
 275         if (0 == dvb->nfeeds)
 276                 err = em28xx_stop_streaming(dvb);
 277
 278         mutex_unlock(&dvb->lock);
 279         return err;
 280 }
 281
 282
 283 /* ------------------------------------------------------------------ */
 284 static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
 285 {
 286         struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
 287         struct em28xx *dev = i2c_bus->dev;
 288
 289         if (acquire)
 290                 return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 291         else
 292                 return em28xx_set_mode(dev, EM28XX_SUSPEND);
 293 }
 294
 295 /* ------------------------------------------------------------------ */
 296
 297 static struct lgdt330x_config em2880_lgdt3303_dev = {
 298         .demod_address = 0x0e,
 299         .demod_chip = LGDT3303,
 300 };
 301
 302 static struct lgdt3305_config em2870_lgdt3304_dev = {
 303         .i2c_addr           = 0x0e,
 304         .demod_chip         = LGDT3304,
 305         .spectral_inversion = 1,
 306         .deny_i2c_rptr      = 1,
 307         .mpeg_mode          = LGDT3305_MPEG_PARALLEL,
 308         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 309         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 310         .vsb_if_khz         = 3250,
 311         .qam_if_khz         = 4000,
 312 };
 313
 314 static struct lgdt3305_config em2874_lgdt3305_dev = {
 315         .i2c_addr           = 0x0e,
 316         .demod_chip         = LGDT3305,
 317         .spectral_inversion = 1,
 318         .deny_i2c_rptr      = 0,
 319         .mpeg_mode          = LGDT3305_MPEG_SERIAL,
 320         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 321         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 322         .vsb_if_khz         = 3250,
 323         .qam_if_khz         = 4000,
 324 };
 325
 326 static struct lgdt3305_config em2874_lgdt3305_nogate_dev = {
 327         .i2c_addr           = 0x0e,
 328         .demod_chip         = LGDT3305,
 329         .spectral_inversion = 1,
 330         .deny_i2c_rptr      = 1,
 331         .mpeg_mode          = LGDT3305_MPEG_SERIAL,
 332         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 333         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 334         .vsb_if_khz         = 3600,
 335         .qam_if_khz         = 3600,
 336 };
 337
 338 static struct s921_config sharp_isdbt = {
 339         .demod_address = 0x30 >> 1
 340 };
 341
 342 static struct zl10353_config em28xx_zl10353_with_xc3028 = {
 343         .demod_address = (0x1e >> 1),
 344         .no_tuner = 1,
 345         .parallel_ts = 1,
 346         .if2 = 45600,
 347 };
 348
 349 static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
 350         .demod_address = 0x32 >> 1,
 351         .output_mode   = S5H1409_PARALLEL_OUTPUT,
 352         .gpio          = S5H1409_GPIO_OFF,
 353         .inversion     = S5H1409_INVERSION_OFF,
 354         .status_mode   = S5H1409_DEMODLOCKING,
 355         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
 356 };
 357
 358 static struct tda18271_std_map kworld_a340_std_map = {
 359         .atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 0,
 360                       .if_lvl = 1, .rfagc_top = 0x37, },
 361         .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 1,
 362                       .if_lvl = 1, .rfagc_top = 0x37, },
 363 };
 364
 365 static struct tda18271_config kworld_a340_config = {
 366         .std_map           = &kworld_a340_std_map,
 367 };
 368
 369 static struct tda18271_config kworld_ub435q_v2_config = {
 370         .std_map        = &kworld_a340_std_map,
 371         .gate           = TDA18271_GATE_DIGITAL,
 372 };
 373
 374 static struct tda18212_config kworld_ub435q_v3_config = {
 375         .if_atsc_vsb    = 3600,
 376         .if_atsc_qam    = 3600,
 377 };
 378
 379 static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
 380         .demod_address = (0x1e >> 1),
 381         .no_tuner = 1,
 382         .disable_i2c_gate_ctrl = 1,
 383         .parallel_ts = 1,
 384         .if2 = 45600,
 385 };
 386
 387 static struct drxd_config em28xx_drxd = {
 388         .demod_address = 0x70,
 389         .demod_revision = 0xa2,
 390         .pll_type = DRXD_PLL_NONE,
 391         .clock = 12000,
 392         .insert_rs_byte = 1,
 393         .IF = 42800000,
 394         .disable_i2c_gate_ctrl = 1,
 395 };
 396
 397 static struct drxk_config terratec_h5_drxk = {
 398         .adr = 0x29,
 399         .single_master = 1,
 400         .no_i2c_bridge = 1,
 401         .microcode_name = "dvb-usb-terratec-h5-drxk.fw",
 402         .qam_demod_parameter_count = 2,
 403 };
 404
 405 static struct drxk_config hauppauge_930c_drxk = {
 406         .adr = 0x29,
 407         .single_master = 1,
 408         .no_i2c_bridge = 1,
 409         .microcode_name = "dvb-usb-hauppauge-hvr930c-drxk.fw",
 410         .chunk_size = 56,
 411         .qam_demod_parameter_count = 2,
 412 };
 413
 414 static struct drxk_config terratec_htc_stick_drxk = {
 415         .adr = 0x29,
 416         .single_master = 1,
 417         .no_i2c_bridge = 1,
 418         .microcode_name = "dvb-usb-terratec-htc-stick-drxk.fw",
 419         .chunk_size = 54,
 420         .qam_demod_parameter_count = 2,
 421         /* Required for the antenna_gpio to disable LNA. */
 422         .antenna_dvbt = true,
 423         /* The windows driver uses the same. This will disable LNA. */
 424         .antenna_gpio = 0x6,
 425 };
 426
 427 static struct drxk_config maxmedia_ub425_tc_drxk = {
 428         .adr = 0x29,
 429         .single_master = 1,
 430         .no_i2c_bridge = 1,
 431         .microcode_name = "dvb-demod-drxk-01.fw",
 432         .chunk_size = 62,
 433         .qam_demod_parameter_count = 2,
 434 };
 435
 436 static struct drxk_config pctv_520e_drxk = {
 437         .adr = 0x29,
 438         .single_master = 1,
 439         .microcode_name = "dvb-demod-drxk-pctv.fw",
 440         .qam_demod_parameter_count = 2,
 441         .chunk_size = 58,
 442         .antenna_dvbt = true, /* disable LNA */
 443         .antenna_gpio = (1 << 2), /* disable LNA */
 444 };
 445
 446 static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
 447 {
 448         struct em28xx_dvb *dvb = fe->sec_priv;
 449         int status;
 450
 451         if (!dvb)
 452                 return -EINVAL;
 453
 454         if (enable) {
 455                 down(&dvb->pll_mutex);
 456                 status = dvb->gate_ctrl(fe, 1);
 457         } else {
 458                 status = dvb->gate_ctrl(fe, 0);
 459                 up(&dvb->pll_mutex);
 460         }
 461         return status;
 462 }
 463
 464 static void hauppauge_hvr930c_init(struct em28xx *dev)
 465 {
 466         int i;
 467
 468         struct em28xx_reg_seq hauppauge_hvr930c_init[] = {
 469                 {EM2874_R80_GPIO_P0_CTRL,       0xff,   0xff,   0x65},
 470                 {EM2874_R80_GPIO_P0_CTRL,       0xfb,   0xff,   0x32},
 471                 {EM2874_R80_GPIO_P0_CTRL,       0xff,   0xff,   0xb8},
 472                 {       -1,                     -1,     -1,     -1},
 473         };
 474         struct em28xx_reg_seq hauppauge_hvr930c_end[] = {
 475                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x01},
 476                 {EM2874_R80_GPIO_P0_CTRL,       0xaf,   0xff,   0x65},
 477                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x76},
 478                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x01},
 479                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x0b},
 480                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x40},
 481
 482                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x65},
 483                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x65},
 484                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x0b},
 485                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x65},
 486
 487                 {       -1,                     -1,     -1,     -1},
 488         };
 489
 490         struct {
 491                 unsigned char r[4];
 492                 int len;
 493         } regs[] = {
 494                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 495                 {{ 0x01, 0x02 }, 2},
 496                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 497                 {{ 0x01, 0x00 }, 2},
 498                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 499                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 500                 {{ 0x01, 0x00 }, 2},
 501                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 502                 {{ 0x04, 0x00 }, 2},
 503                 {{ 0x00, 0x04 }, 2},
 504                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 505                 {{ 0x04, 0x14 }, 2},
 506                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 507         };
 508
 509         em28xx_gpio_set(dev, hauppauge_hvr930c_init);
 510         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 511         msleep(10);
 512         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 513         msleep(10);
 514
 515         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 516
 517         for (i = 0; i < ARRAY_SIZE(regs); i++)
 518                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 519         em28xx_gpio_set(dev, hauppauge_hvr930c_end);
 520
 521         msleep(100);
 522
 523         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 524         msleep(30);
 525
 526         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 527         msleep(10);
 528
 529 }
 530
 531 static void terratec_h5_init(struct em28xx *dev)
 532 {
 533         int i;
 534         struct em28xx_reg_seq terratec_h5_init[] = {
 535                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 536                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 537                 {EM2874_R80_GPIO_P0_CTRL,       0xf2,   0xff,   50},
 538                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 539                 {       -1,                     -1,     -1,     -1},
 540         };
 541         struct em28xx_reg_seq terratec_h5_end[] = {
 542                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 543                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   50},
 544                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 545                 {       -1,                     -1,     -1,     -1},
 546         };
 547         struct {
 548                 unsigned char r[4];
 549                 int len;
 550         } regs[] = {
 551                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 552                 {{ 0x01, 0x02 }, 2},
 553                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 554                 {{ 0x01, 0x00 }, 2},
 555                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 556                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 557                 {{ 0x01, 0x00 }, 2},
 558                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 559                 {{ 0x04, 0x00 }, 2},
 560                 {{ 0x00, 0x04 }, 2},
 561                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 562                 {{ 0x04, 0x14 }, 2},
 563                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 564         };
 565
 566         em28xx_gpio_set(dev, terratec_h5_init);
 567         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 568         msleep(10);
 569         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 570         msleep(10);
 571
 572         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 573
 574         for (i = 0; i < ARRAY_SIZE(regs); i++)
 575                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 576         em28xx_gpio_set(dev, terratec_h5_end);
 577 };
 578
 579 static void terratec_htc_stick_init(struct em28xx *dev)
 580 {
 581         int i;
 582
 583         /*
 584          * GPIO configuration:
 585          * 0xff: unknown (does not affect DVB-T).
 586          * 0xf6: DRX-K (demodulator).
 587          * 0xe6: unknown (does not affect DVB-T).
 588          * 0xb6: unknown (does not affect DVB-T).
 589          */
 590         struct em28xx_reg_seq terratec_htc_stick_init[] = {
 591                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 592                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 593                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   50},
 594                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 595                 {       -1,                     -1,     -1,     -1},
 596         };
 597         struct em28xx_reg_seq terratec_htc_stick_end[] = {
 598                 {EM2874_R80_GPIO_P0_CTRL,       0xb6,   0xff,   100},
 599                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   50},
 600                 {       -1,                     -1,     -1,     -1},
 601         };
 602
 603         /*
 604          * Init the analog decoder (not yet supported), but
 605          * it's probably still a good idea.
 606          */
 607         struct {
 608                 unsigned char r[4];
 609                 int len;
 610         } regs[] = {
 611                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 612                 {{ 0x01, 0x02 }, 2},
 613                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 614                 {{ 0x01, 0x00 }, 2},
 615                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 616         };
 617
 618         em28xx_gpio_set(dev, terratec_htc_stick_init);
 619
 620         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 621         msleep(10);
 622         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 623         msleep(10);
 624
 625         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 626
 627         for (i = 0; i < ARRAY_SIZE(regs); i++)
 628                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 629
 630         em28xx_gpio_set(dev, terratec_htc_stick_end);
 631 };
 632
 633 static void terratec_htc_usb_xs_init(struct em28xx *dev)
 634 {
 635         int i;
 636
 637         struct em28xx_reg_seq terratec_htc_usb_xs_init[] = {
 638                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 639                 {EM2874_R80_GPIO_P0_CTRL,       0xb2,   0xff,   100},
 640                 {EM2874_R80_GPIO_P0_CTRL,       0xb2,   0xff,   50},
 641                 {EM2874_R80_GPIO_P0_CTRL,       0xb6,   0xff,   100},
 642                 {       -1,                     -1,     -1,     -1},
 643         };
 644         struct em28xx_reg_seq terratec_htc_usb_xs_end[] = {
 645                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   100},
 646                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   50},
 647                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 648                 {       -1,                     -1,     -1,     -1},
 649         };
 650
 651         /*
 652          * Init the analog decoder (not yet supported), but
 653          * it's probably still a good idea.
 654          */
 655         struct {
 656                 unsigned char r[4];
 657                 int len;
 658         } regs[] = {
 659                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 660                 {{ 0x01, 0x02 }, 2},
 661                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 662                 {{ 0x01, 0x00 }, 2},
 663                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 664                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 665                 {{ 0x01, 0x00 }, 2},
 666                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 667                 {{ 0x04, 0x00 }, 2},
 668                 {{ 0x00, 0x04 }, 2},
 669                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 670                 {{ 0x04, 0x14 }, 2},
 671                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 672         };
 673
 674         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 675
 676         em28xx_gpio_set(dev, terratec_htc_usb_xs_init);
 677
 678         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 679         msleep(10);
 680         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 681         msleep(10);
 682
 683         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 684
 685         for (i = 0; i < ARRAY_SIZE(regs); i++)
 686                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 687
 688         em28xx_gpio_set(dev, terratec_htc_usb_xs_end);
 689 };
 690
 691 static void pctv_520e_init(struct em28xx *dev)
 692 {
 693         /*
 694          * Init AVF4910B analog decoder. Looks like I2C traffic to
 695          * digital demodulator and tuner are routed via AVF4910B.
 696          */
 697         int i;
 698         struct {
 699                 unsigned char r[4];
 700                 int len;
 701         } regs[] = {
 702                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 703                 {{ 0x01, 0x02 }, 2},
 704                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 705                 {{ 0x01, 0x00 }, 2},
 706                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 707                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 708                 {{ 0x01, 0x00 }, 2},
 709                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 710         };
 711
 712         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1; /* 0x41 */
 713
 714         for (i = 0; i < ARRAY_SIZE(regs); i++)
 715                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 716 };
 717
 718 static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe)
 719 {
 720         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 721         struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
 722         struct em28xx *dev = i2c_bus->dev;
 723 #ifdef CONFIG_GPIOLIB
 724         struct em28xx_dvb *dvb = dev->dvb;
 725         int ret;
 726         unsigned long flags;
 727
 728         if (c->lna == 1)
 729                 flags = GPIOF_OUT_INIT_HIGH; /* enable LNA */
 730         else
 731                 flags = GPIOF_OUT_INIT_LOW; /* disable LNA */
 732
 733         ret = gpio_request_one(dvb->lna_gpio, flags, NULL);
 734         if (ret)
 735                 em28xx_errdev("gpio request failed %d\n", ret);
 736         else
 737                 gpio_free(dvb->lna_gpio);
 738
 739         return ret;
 740 #else
 741         dev_warn(&dev->udev->dev, "%s: LNA control is disabled (lna=%u)\n",
 742                  KBUILD_MODNAME, c->lna);
 743         return 0;
 744 #endif
 745 }
 746
 747 static int em28xx_pctv_292e_set_lna(struct dvb_frontend *fe)
 748 {
 749         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 750         struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
 751         struct em28xx *dev = i2c_bus->dev;
 752         u8 lna;
 753
 754         if (c->lna == 1)
 755                 lna = 0x01;
 756         else
 757                 lna = 0x00;
 758
 759         return em28xx_write_reg_bits(dev, EM2874_R80_GPIO_P0_CTRL, lna, 0x01);
 760 }
 761
 762 static int em28xx_mt352_terratec_xs_init(struct dvb_frontend *fe)
 763 {
 764         /* Values extracted from a USB trace of the Terratec Windows driver */
 765         static u8 clock_config[]   = { CLOCK_CTL,  0x38, 0x2c };
 766         static u8 reset[]          = { RESET,      0x80 };
 767         static u8 adc_ctl_1_cfg[]  = { ADC_CTL_1,  0x40 };
 768         static u8 agc_cfg[]        = { AGC_TARGET, 0x28, 0xa0 };
 769         static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
 770         static u8 rs_err_cfg[]     = { RS_ERR_PER_1, 0x00, 0x4d };
 771         static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
 772         static u8 trl_nom_cfg[]    = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
 773         static u8 tps_given_cfg[]  = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
 774         static u8 tuner_go[]       = { TUNER_GO, 0x01};
 775
 776         mt352_write(fe, clock_config,   sizeof(clock_config));
 777         udelay(200);
 778         mt352_write(fe, reset,          sizeof(reset));
 779         mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));
 780         mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
 781         mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
 782         mt352_write(fe, rs_err_cfg,     sizeof(rs_err_cfg));
 783         mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
 784         mt352_write(fe, trl_nom_cfg,    sizeof(trl_nom_cfg));
 785         mt352_write(fe, tps_given_cfg,  sizeof(tps_given_cfg));
 786         mt352_write(fe, tuner_go,       sizeof(tuner_go));
 787         return 0;
 788 }
 789
 790 static struct mt352_config terratec_xs_mt352_cfg = {
 791         .demod_address = (0x1e >> 1),
 792         .no_tuner = 1,
 793         .if2 = 45600,
 794         .demod_init = em28xx_mt352_terratec_xs_init,
 795 };
 796
 797 static struct tda10023_config em28xx_tda10023_config = {
 798         .demod_address = 0x0c,
 799         .invert = 1,
 800 };
 801
 802 static struct cxd2820r_config em28xx_cxd2820r_config = {
 803         .i2c_address = (0xd8 >> 1),
 804         .ts_mode = CXD2820R_TS_SERIAL,
 805 };
 806
 807 static struct tda18271_config em28xx_cxd2820r_tda18271_config = {
 808         .output_opt = TDA18271_OUTPUT_LT_OFF,
 809         .gate = TDA18271_GATE_DIGITAL,
 810 };
 811
 812 static struct zl10353_config em28xx_zl10353_no_i2c_gate_dev = {
 813         .demod_address = (0x1e >> 1),
 814         .disable_i2c_gate_ctrl = 1,
 815         .no_tuner = 1,
 816         .parallel_ts = 1,
 817 };
 818
 819 static struct mt2060_config em28xx_mt2060_config = {
 820         .i2c_address = 0x60,
 821 };
 822
 823 static struct qt1010_config em28xx_qt1010_config = {
 824         .i2c_address = 0x62
 825 };
 826
 827 static const struct mb86a20s_config c3tech_duo_mb86a20s_config = {
 828         .demod_address = 0x10,
 829         .is_serial = true,
 830 };
 831
 832 static struct tda18271_std_map mb86a20s_tda18271_config = {
 833         .dvbt_6   = { .if_freq = 4000, .agc_mode = 3, .std = 4,
 834                       .if_lvl = 1, .rfagc_top = 0x37, },
 835 };
 836
 837 static struct tda18271_config c3tech_duo_tda18271_config = {
 838         .std_map = &mb86a20s_tda18271_config,
 839         .gate    = TDA18271_GATE_DIGITAL,
 840         .small_i2c = TDA18271_03_BYTE_CHUNK_INIT,
 841 };
 842
 843 static const struct m88ds3103_config pctv_461e_m88ds3103_config = {
 844         .i2c_addr = 0x68,
 845         .clock = 27000000,
 846         .i2c_wr_max = 33,
 847         .clock_out = 0,
 848         .ts_mode = M88DS3103_TS_PARALLEL,
 849         .ts_clk = 16000,
 850         .ts_clk_pol = 1,
 851         .agc = 0x99,
 852 };
 853
 854 static struct tda18271_std_map drx_j_std_map = {
 855         .atsc_6   = { .if_freq = 5000, .agc_mode = 3, .std = 0, .if_lvl = 1,
 856                       .rfagc_top = 0x37, },
 857         .qam_6    = { .if_freq = 5380, .agc_mode = 3, .std = 3, .if_lvl = 1,
 858                       .rfagc_top = 0x37, },
 859 };
 860
 861 static struct tda18271_config pinnacle_80e_dvb_config = {
 862         .std_map = &drx_j_std_map,
 863         .gate    = TDA18271_GATE_DIGITAL,
 864         .role    = TDA18271_MASTER,
 865 };
 866
 867 /* ------------------------------------------------------------------ */
 868
 869 static int em28xx_attach_xc3028(u8 addr, struct em28xx *dev)
 870 {
 871         struct dvb_frontend *fe;
 872         struct xc2028_config cfg;
 873         struct xc2028_ctrl ctl;
 874
 875         memset(&cfg, 0, sizeof(cfg));
 876         cfg.i2c_adap  = &dev->i2c_adap[dev->def_i2c_bus];
 877         cfg.i2c_addr  = addr;
 878
 879         memset(&ctl, 0, sizeof(ctl));
 880         em28xx_setup_xc3028(dev, &ctl);
 881         cfg.ctrl  = &ctl;
 882
 883         if (!dev->dvb->fe[0]) {
 884                 em28xx_errdev("/2: dvb frontend not attached. "
 885                                 "Can't attach xc3028\n");
 886                 return -EINVAL;
 887         }
 888
 889         fe = dvb_attach(xc2028_attach, dev->dvb->fe[0], &cfg);
 890         if (!fe) {
 891                 em28xx_errdev("/2: xc3028 attach failed\n");
 892                 dvb_frontend_detach(dev->dvb->fe[0]);
 893                 dev->dvb->fe[0] = NULL;
 894                 return -EINVAL;
 895         }
 896
 897         em28xx_info("%s/2: xc3028 attached\n", dev->name);
 898
 899         return 0;
 900 }
 901
 902 /* ------------------------------------------------------------------ */
 903
 904 static int em28xx_register_dvb(struct em28xx_dvb *dvb, struct module *module,
 905                                struct em28xx *dev, struct device *device)
 906 {
 907         int result;
 908
 909         mutex_init(&dvb->lock);
 910
 911         /* register adapter */
 912         result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
 913                                       adapter_nr);
 914         if (result < 0) {
 915                 printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
 916                        dev->name, result);
 917                 goto fail_adapter;
 918         }
 919
 920         /* Ensure all frontends negotiate bus access */
 921         dvb->fe[0]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 922         if (dvb->fe[1])
 923                 dvb->fe[1]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 924
 925         dvb->adapter.priv = &dev->i2c_bus[dev->def_i2c_bus];
 926
 927         /* register frontend */
 928         result = dvb_register_frontend(&dvb->adapter, dvb->fe[0]);
 929         if (result < 0) {
 930                 printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
 931                        dev->name, result);
 932                 goto fail_frontend0;
 933         }
 934
 935         /* register 2nd frontend */
 936         if (dvb->fe[1]) {
 937                 result = dvb_register_frontend(&dvb->adapter, dvb->fe[1]);
 938                 if (result < 0) {
 939                         printk(KERN_WARNING "%s: 2nd dvb_register_frontend failed (errno = %d)\n",
 940                                dev->name, result);
 941                         goto fail_frontend1;
 942                 }
 943         }
 944
 945         /* register demux stuff */
 946         dvb->demux.dmx.capabilities =
 947                 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 948                 DMX_MEMORY_BASED_FILTERING;
 949         dvb->demux.priv       = dvb;
 950         dvb->demux.filternum  = 256;
 951         dvb->demux.feednum    = 256;
 952         dvb->demux.start_feed = em28xx_start_feed;
 953         dvb->demux.stop_feed  = em28xx_stop_feed;
 954
 955         result = dvb_dmx_init(&dvb->demux);
 956         if (result < 0) {
 957                 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
 958                        dev->name, result);
 959                 goto fail_dmx;
 960         }
 961
 962         dvb->dmxdev.filternum    = 256;
 963         dvb->dmxdev.demux        = &dvb->demux.dmx;
 964         dvb->dmxdev.capabilities = 0;
 965         result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
 966         if (result < 0) {
 967                 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
 968                        dev->name, result);
 969                 goto fail_dmxdev;
 970         }
 971
 972         dvb->fe_hw.source = DMX_FRONTEND_0;
 973         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 974         if (result < 0) {
 975                 printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
 976                        dev->name, result);
 977                 goto fail_fe_hw;
 978         }
 979
 980         dvb->fe_mem.source = DMX_MEMORY_FE;
 981         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 982         if (result < 0) {
 983                 printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
 984                        dev->name, result);
 985                 goto fail_fe_mem;
 986         }
 987
 988         result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 989         if (result < 0) {
 990                 printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
 991                        dev->name, result);
 992                 goto fail_fe_conn;
 993         }
 994
 995         /* register network adapter */
 996         dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
 997         return 0;
 998
 999 fail_fe_conn:
1000         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
1001 fail_fe_mem:
1002         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
1003 fail_fe_hw:
1004         dvb_dmxdev_release(&dvb->dmxdev);
1005 fail_dmxdev:
1006         dvb_dmx_release(&dvb->demux);
1007 fail_dmx:
1008         if (dvb->fe[1])
1009                 dvb_unregister_frontend(dvb->fe[1]);
1010         dvb_unregister_frontend(dvb->fe[0]);
1011 fail_frontend1:
1012         if (dvb->fe[1])
1013                 dvb_frontend_detach(dvb->fe[1]);
1014 fail_frontend0:
1015         dvb_frontend_detach(dvb->fe[0]);
1016         dvb_unregister_adapter(&dvb->adapter);
1017 fail_adapter:
1018         return result;
1019 }
1020
1021 static void em28xx_unregister_dvb(struct em28xx_dvb *dvb)
1022 {
1023         dvb_net_release(&dvb->net);
1024         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
1025         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
1026         dvb_dmxdev_release(&dvb->dmxdev);
1027         dvb_dmx_release(&dvb->demux);
1028         if (dvb->fe[1])
1029                 dvb_unregister_frontend(dvb->fe[1]);
1030         dvb_unregister_frontend(dvb->fe[0]);
1031         if (dvb->fe[1] && !dvb->dont_attach_fe1)
1032                 dvb_frontend_detach(dvb->fe[1]);
1033         dvb_frontend_detach(dvb->fe[0]);
1034         dvb_unregister_adapter(&dvb->adapter);
1035 }
1036
1037 static int em28xx_dvb_init(struct em28xx *dev)
1038 {
1039         int result = 0;
1040         struct em28xx_dvb *dvb;
1041
1042         if (dev->is_audio_only) {
1043                 /* Shouldn't initialize IR for this interface */
1044                 return 0;
1045         }
1046
1047         if (!dev->board.has_dvb) {
1048                 /* This device does not support the extension */
1049                 return 0;
1050         }
1051
1052         em28xx_info("Binding DVB extension\n");
1053
1054         dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
1055         if (dvb == NULL) {
1056                 em28xx_info("em28xx_dvb: memory allocation failed\n");
1057                 return -ENOMEM;
1058         }
1059         dev->dvb = dvb;
1060         dvb->fe[0] = dvb->fe[1] = NULL;
1061
1062         /* pre-allocate DVB usb transfer buffers */
1063         if (dev->dvb_xfer_bulk) {
1064                 result = em28xx_alloc_urbs(dev, EM28XX_DIGITAL_MODE,
1065                                            dev->dvb_xfer_bulk,
1066                                            EM28XX_DVB_NUM_BUFS,
1067                                            512,
1068                                            EM28XX_DVB_BULK_PACKET_MULTIPLIER);
1069         } else {
1070                 result = em28xx_alloc_urbs(dev, EM28XX_DIGITAL_MODE,
1071                                            dev->dvb_xfer_bulk,
1072                                            EM28XX_DVB_NUM_BUFS,
1073                                            dev->dvb_max_pkt_size_isoc,
1074                                            EM28XX_DVB_NUM_ISOC_PACKETS);
1075         }
1076         if (result) {
1077                 em28xx_errdev("em28xx_dvb: failed to pre-allocate USB transfer buffers for DVB.\n");
1078                 kfree(dvb);
1079                 dev->dvb = NULL;
1080                 return result;
1081         }
1082
1083         mutex_lock(&dev->lock);
1084         em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
1085         /* init frontend */
1086         switch (dev->model) {
1087         case EM2874_BOARD_LEADERSHIP_ISDBT:
1088                 dvb->fe[0] = dvb_attach(s921_attach,
1089                                 &sharp_isdbt, &dev->i2c_adap[dev->def_i2c_bus]);
1090
1091                 if (!dvb->fe[0]) {
1092                         result = -EINVAL;
1093                         goto out_free;
1094                 }
1095
1096                 break;
1097         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
1098         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
1099         case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
1100         case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
1101                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
1102                                            &em2880_lgdt3303_dev,
1103                                            &dev->i2c_adap[dev->def_i2c_bus]);
1104                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1105                         result = -EINVAL;
1106                         goto out_free;
1107                 }
1108                 break;
1109         case EM2880_BOARD_KWORLD_DVB_310U:
1110                 dvb->fe[0] = dvb_attach(zl10353_attach,
1111                                            &em28xx_zl10353_with_xc3028,
1112                                            &dev->i2c_adap[dev->def_i2c_bus]);
1113                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1114                         result = -EINVAL;
1115                         goto out_free;
1116                 }
1117                 break;
1118         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
1119         case EM2882_BOARD_TERRATEC_HYBRID_XS:
1120         case EM2880_BOARD_EMPIRE_DUAL_TV:
1121                 dvb->fe[0] = dvb_attach(zl10353_attach,
1122                                            &em28xx_zl10353_xc3028_no_i2c_gate,
1123                                            &dev->i2c_adap[dev->def_i2c_bus]);
1124                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1125                         result = -EINVAL;
1126                         goto out_free;
1127                 }
1128                 break;
1129         case EM2880_BOARD_TERRATEC_HYBRID_XS:
1130         case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
1131         case EM2881_BOARD_PINNACLE_HYBRID_PRO:
1132         case EM2882_BOARD_DIKOM_DK300:
1133         case EM2882_BOARD_KWORLD_VS_DVBT:
1134                 dvb->fe[0] = dvb_attach(zl10353_attach,
1135                                            &em28xx_zl10353_xc3028_no_i2c_gate,
1136                                            &dev->i2c_adap[dev->def_i2c_bus]);
1137                 if (dvb->fe[0] == NULL) {
1138                         /* This board could have either a zl10353 or a mt352.
1139                            If the chip id isn't for zl10353, try mt352 */
1140                         dvb->fe[0] = dvb_attach(mt352_attach,
1141                                                    &terratec_xs_mt352_cfg,
1142                                                    &dev->i2c_adap[dev->def_i2c_bus]);
1143                 }
1144
1145                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1146                         result = -EINVAL;
1147                         goto out_free;
1148                 }
1149                 break;
1150         case EM2870_BOARD_TERRATEC_XS_MT2060:
1151                 dvb->fe[0] = dvb_attach(zl10353_attach,
1152                                                 &em28xx_zl10353_no_i2c_gate_dev,
1153                                                 &dev->i2c_adap[dev->def_i2c_bus]);
1154                 if (dvb->fe[0] != NULL) {
1155                         dvb_attach(mt2060_attach, dvb->fe[0],
1156                                         &dev->i2c_adap[dev->def_i2c_bus],
1157                                         &em28xx_mt2060_config, 1220);
1158                 }
1159                 break;
1160         case EM2870_BOARD_KWORLD_355U:
1161                 dvb->fe[0] = dvb_attach(zl10353_attach,
1162                                            &em28xx_zl10353_no_i2c_gate_dev,
1163                                            &dev->i2c_adap[dev->def_i2c_bus]);
1164                 if (dvb->fe[0] != NULL)
1165                         dvb_attach(qt1010_attach, dvb->fe[0],
1166                                    &dev->i2c_adap[dev->def_i2c_bus], &em28xx_qt1010_config);
1167                 break;
1168         case EM2883_BOARD_KWORLD_HYBRID_330U:
1169         case EM2882_BOARD_EVGA_INDTUBE:
1170                 dvb->fe[0] = dvb_attach(s5h1409_attach,
1171                                            &em28xx_s5h1409_with_xc3028,
1172                                            &dev->i2c_adap[dev->def_i2c_bus]);
1173                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1174                         result = -EINVAL;
1175                         goto out_free;
1176                 }
1177                 break;
1178         case EM2882_BOARD_KWORLD_ATSC_315U:
1179                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
1180                                            &em2880_lgdt3303_dev,
1181                                            &dev->i2c_adap[dev->def_i2c_bus]);
1182                 if (dvb->fe[0] != NULL) {
1183                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1184                                         &dev->i2c_adap[dev->def_i2c_bus],
1185                                         0x61, TUNER_THOMSON_DTT761X)) {
1186                                 result = -EINVAL;
1187                                 goto out_free;
1188                         }
1189                 }
1190                 break;
1191         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
1192         case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
1193                 dvb->fe[0] = dvb_attach(drxd_attach, &em28xx_drxd, NULL,
1194                                            &dev->i2c_adap[dev->def_i2c_bus], &dev->udev->dev);
1195                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1196                         result = -EINVAL;
1197                         goto out_free;
1198                 }
1199                 break;
1200         case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
1201                 /* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
1202                 dvb->fe[0] = dvb_attach(tda10023_attach,
1203                         &em28xx_tda10023_config,
1204                         &dev->i2c_adap[dev->def_i2c_bus], 0x48);
1205                 if (dvb->fe[0]) {
1206                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1207                                         &dev->i2c_adap[dev->def_i2c_bus],
1208                                         0x60, TUNER_PHILIPS_CU1216L)) {
1209                                 result = -EINVAL;
1210                                 goto out_free;
1211                         }
1212                 }
1213                 break;
1214         case EM2870_BOARD_KWORLD_A340:
1215                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1216                                            &em2870_lgdt3304_dev,
1217                                            &dev->i2c_adap[dev->def_i2c_bus]);
1218                 if (!dvb->fe[0]) {
1219                         result = -EINVAL;
1220                         goto out_free;
1221                 }
1222                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1223                                 &dev->i2c_adap[dev->def_i2c_bus],
1224                         &kworld_a340_config)) {
1225                                 dvb_frontend_detach(dvb->fe[0]);
1226                                 result = -EINVAL;
1227                                 goto out_free;
1228                 }
1229                 break;
1230         case EM28174_BOARD_PCTV_290E:
1231                 /* set default GPIO0 for LNA, used if GPIOLIB is undefined */
1232                 dvb->lna_gpio = CXD2820R_GPIO_E | CXD2820R_GPIO_O |
1233                                 CXD2820R_GPIO_L;
1234                 dvb->fe[0] = dvb_attach(cxd2820r_attach,
1235                                         &em28xx_cxd2820r_config,
1236                                         &dev->i2c_adap[dev->def_i2c_bus],
1237                                         &dvb->lna_gpio);
1238                 if (dvb->fe[0]) {
1239                         /* FE 0 attach tuner */
1240                         if (!dvb_attach(tda18271_attach,
1241                                         dvb->fe[0],
1242                                         0x60,
1243                                         &dev->i2c_adap[dev->def_i2c_bus],
1244                                         &em28xx_cxd2820r_tda18271_config)) {
1245
1246                                 dvb_frontend_detach(dvb->fe[0]);
1247                                 result = -EINVAL;
1248                                 goto out_free;
1249                         }
1250
1251 #ifdef CONFIG_GPIOLIB
1252                         /* enable LNA for DVB-T, DVB-T2 and DVB-C */
1253                         result = gpio_request_one(dvb->lna_gpio,
1254                                                   GPIOF_OUT_INIT_LOW, NULL);
1255                         if (result)
1256                                 em28xx_errdev("gpio request failed %d\n",
1257                                               result);
1258                         else
1259                                 gpio_free(dvb->lna_gpio);
1260
1261                         result = 0; /* continue even set LNA fails */
1262 #endif
1263                         dvb->fe[0]->ops.set_lna = em28xx_pctv_290e_set_lna;
1264                 }
1265
1266                 break;
1267         case EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C:
1268         {
1269                 struct xc5000_config cfg;
1270
1271                 hauppauge_hvr930c_init(dev);
1272
1273                 dvb->fe[0] = dvb_attach(drxk_attach,
1274                                         &hauppauge_930c_drxk, &dev->i2c_adap[dev->def_i2c_bus]);
1275                 if (!dvb->fe[0]) {
1276                         result = -EINVAL;
1277                         goto out_free;
1278                 }
1279                 /* FIXME: do we need a pll semaphore? */
1280                 dvb->fe[0]->sec_priv = dvb;
1281                 sema_init(&dvb->pll_mutex, 1);
1282                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1283                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1284
1285                 /* Attach xc5000 */
1286                 memset(&cfg, 0, sizeof(cfg));
1287                 cfg.i2c_address  = 0x61;
1288                 cfg.if_khz = 4000;
1289
1290                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1291                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1292                 if (!dvb_attach(xc5000_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus],
1293                                 &cfg)) {
1294                         result = -EINVAL;
1295                         goto out_free;
1296                 }
1297                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1298                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1299
1300                 break;
1301         }
1302         case EM2884_BOARD_TERRATEC_H5:
1303                 terratec_h5_init(dev);
1304
1305                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_h5_drxk, &dev->i2c_adap[dev->def_i2c_bus]);
1306                 if (!dvb->fe[0]) {
1307                         result = -EINVAL;
1308                         goto out_free;
1309                 }
1310                 /* FIXME: do we need a pll semaphore? */
1311                 dvb->fe[0]->sec_priv = dvb;
1312                 sema_init(&dvb->pll_mutex, 1);
1313                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1314                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1315
1316                 /* Attach tda18271 to DVB-C frontend */
1317                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1318                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1319                 if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus], 0x60)) {
1320                         result = -EINVAL;
1321                         goto out_free;
1322                 }
1323                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1324                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1325
1326                 break;
1327         case EM2884_BOARD_C3TECH_DIGITAL_DUO:
1328                 dvb->fe[0] = dvb_attach(mb86a20s_attach,
1329                                            &c3tech_duo_mb86a20s_config,
1330                                            &dev->i2c_adap[dev->def_i2c_bus]);
1331                 if (dvb->fe[0] != NULL)
1332                         dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1333                                    &dev->i2c_adap[dev->def_i2c_bus],
1334                                    &c3tech_duo_tda18271_config);
1335                 break;
1336         case EM28174_BOARD_PCTV_460E: {
1337                 struct i2c_client *client;
1338                 struct i2c_board_info board_info;
1339                 struct tda10071_platform_data tda10071_pdata = {};
1340                 struct a8293_platform_data a8293_pdata = {};
1341
1342                 /* attach demod + tuner combo */
1343                 tda10071_pdata.clk = 40444000, /* 40.444 MHz */
1344                 tda10071_pdata.i2c_wr_max = 64,
1345                 tda10071_pdata.ts_mode = TDA10071_TS_SERIAL,
1346                 tda10071_pdata.pll_multiplier = 20,
1347                 tda10071_pdata.tuner_i2c_addr = 0x14,
1348                 memset(&board_info, 0, sizeof(board_info));
1349                 strlcpy(board_info.type, "tda10071_cx24118", I2C_NAME_SIZE);
1350                 board_info.addr = 0x55;
1351                 board_info.platform_data = &tda10071_pdata;
1352                 request_module("tda10071");
1353                 client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &board_info);
1354                 if (client == NULL || client->dev.driver == NULL) {
1355                         result = -ENODEV;
1356                         goto out_free;
1357                 }
1358                 if (!try_module_get(client->dev.driver->owner)) {
1359                         i2c_unregister_device(client);
1360                         result = -ENODEV;
1361                         goto out_free;
1362                 }
1363                 dvb->fe[0] = tda10071_pdata.get_dvb_frontend(client);
1364                 dvb->i2c_client_demod = client;
1365
1366                 /* attach SEC */
1367                 a8293_pdata.dvb_frontend = dvb->fe[0];
1368                 memset(&board_info, 0, sizeof(board_info));
1369                 strlcpy(board_info.type, "a8293", I2C_NAME_SIZE);
1370                 board_info.addr = 0x08;
1371                 board_info.platform_data = &a8293_pdata;
1372                 request_module("a8293");
1373                 client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &board_info);
1374                 if (client == NULL || client->dev.driver == NULL) {
1375                         module_put(dvb->i2c_client_demod->dev.driver->owner);
1376                         i2c_unregister_device(dvb->i2c_client_demod);
1377                         result = -ENODEV;
1378                         goto out_free;
1379                 }
1380                 if (!try_module_get(client->dev.driver->owner)) {
1381                         i2c_unregister_device(client);
1382                         module_put(dvb->i2c_client_demod->dev.driver->owner);
1383                         i2c_unregister_device(dvb->i2c_client_demod);
1384                         result = -ENODEV;
1385                         goto out_free;
1386                 }
1387                 dvb->i2c_client_sec = client;
1388                 break;
1389         }
1390         case EM2874_BOARD_DELOCK_61959:
1391         case EM2874_BOARD_MAXMEDIA_UB425_TC:
1392                 /* attach demodulator */
1393                 dvb->fe[0] = dvb_attach(drxk_attach, &maxmedia_ub425_tc_drxk,
1394                                 &dev->i2c_adap[dev->def_i2c_bus]);
1395
1396                 if (dvb->fe[0]) {
1397                         /* disable I2C-gate */
1398                         dvb->fe[0]->ops.i2c_gate_ctrl = NULL;
1399
1400                         /* attach tuner */
1401                         if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1402                                         &dev->i2c_adap[dev->def_i2c_bus],
1403                                         &em28xx_cxd2820r_tda18271_config)) {
1404                                 dvb_frontend_detach(dvb->fe[0]);
1405                                 result = -EINVAL;
1406                                 goto out_free;
1407                         }
1408                 }
1409                 break;
1410         case EM2884_BOARD_PCTV_510E:
1411         case EM2884_BOARD_PCTV_520E:
1412                 pctv_520e_init(dev);
1413
1414                 /* attach demodulator */
1415                 dvb->fe[0] = dvb_attach(drxk_attach, &pctv_520e_drxk,
1416                                 &dev->i2c_adap[dev->def_i2c_bus]);
1417
1418                 if (dvb->fe[0]) {
1419                         /* attach tuner */
1420                         if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1421                                         &dev->i2c_adap[dev->def_i2c_bus],
1422                                         &em28xx_cxd2820r_tda18271_config)) {
1423                                 dvb_frontend_detach(dvb->fe[0]);
1424                                 result = -EINVAL;
1425                                 goto out_free;
1426                         }
1427                 }
1428                 break;
1429         case EM2884_BOARD_ELGATO_EYETV_HYBRID_2008:
1430         case EM2884_BOARD_CINERGY_HTC_STICK:
1431                 terratec_htc_stick_init(dev);
1432
1433                 /* attach demodulator */
1434                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1435                                         &dev->i2c_adap[dev->def_i2c_bus]);
1436                 if (!dvb->fe[0]) {
1437                         result = -EINVAL;
1438                         goto out_free;
1439                 }
1440
1441                 /* Attach the demodulator. */
1442                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1443                                 &dev->i2c_adap[dev->def_i2c_bus],
1444                                 &em28xx_cxd2820r_tda18271_config)) {
1445                         result = -EINVAL;
1446                         goto out_free;
1447                 }
1448                 break;
1449         case EM2884_BOARD_TERRATEC_HTC_USB_XS:
1450                 terratec_htc_usb_xs_init(dev);
1451
1452                 /* attach demodulator */
1453                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1454                                         &dev->i2c_adap[dev->def_i2c_bus]);
1455                 if (!dvb->fe[0]) {
1456                         result = -EINVAL;
1457                         goto out_free;
1458                 }
1459
1460                 /* Attach the demodulator. */
1461                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1462                                 &dev->i2c_adap[dev->def_i2c_bus],
1463                                 &em28xx_cxd2820r_tda18271_config)) {
1464                         result = -EINVAL;
1465                         goto out_free;
1466                 }
1467                 break;
1468         case EM2874_BOARD_KWORLD_UB435Q_V2:
1469                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1470                                         &em2874_lgdt3305_dev,
1471                                         &dev->i2c_adap[dev->def_i2c_bus]);
1472                 if (!dvb->fe[0]) {
1473                         result = -EINVAL;
1474                         goto out_free;
1475                 }
1476
1477                 /* Attach the demodulator. */
1478                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1479                                 &dev->i2c_adap[dev->def_i2c_bus],
1480                                 &kworld_ub435q_v2_config)) {
1481                         result = -EINVAL;
1482                         goto out_free;
1483                 }
1484                 break;
1485         case EM2874_BOARD_KWORLD_UB435Q_V3:
1486         {
1487                 struct i2c_client *client;
1488                 struct i2c_adapter *adapter = &dev->i2c_adap[dev->def_i2c_bus];
1489                 struct i2c_board_info board_info = {
1490                         .type = "tda18212",
1491                         .addr = 0x60,
1492                         .platform_data = &kworld_ub435q_v3_config,
1493                 };
1494
1495                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1496                                         &em2874_lgdt3305_nogate_dev,
1497                                         &dev->i2c_adap[dev->def_i2c_bus]);
1498                 if (!dvb->fe[0]) {
1499                         result = -EINVAL;
1500                         goto out_free;
1501                 }
1502
1503                 /* attach tuner */
1504                 kworld_ub435q_v3_config.fe = dvb->fe[0];
1505                 request_module("tda18212");
1506                 client = i2c_new_device(adapter, &board_info);
1507                 if (client == NULL || client->dev.driver == NULL) {
1508                         dvb_frontend_detach(dvb->fe[0]);
1509                         result = -ENODEV;
1510                         goto out_free;
1511                 }
1512
1513                 if (!try_module_get(client->dev.driver->owner)) {
1514                         i2c_unregister_device(client);
1515                         dvb_frontend_detach(dvb->fe[0]);
1516                         result = -ENODEV;
1517                         goto out_free;
1518                 }
1519
1520                 dvb->i2c_client_tuner = client;
1521                 break;
1522         }
1523         case EM2874_BOARD_PCTV_HD_MINI_80E:
1524                 dvb->fe[0] = dvb_attach(drx39xxj_attach, &dev->i2c_adap[dev->def_i2c_bus]);
1525                 if (dvb->fe[0] != NULL) {
1526                         dvb->fe[0] = dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1527                                                 &dev->i2c_adap[dev->def_i2c_bus],
1528                                                 &pinnacle_80e_dvb_config);
1529                         if (!dvb->fe[0]) {
1530                                 result = -EINVAL;
1531                                 goto out_free;
1532                         }
1533                 }
1534                 break;
1535         case EM28178_BOARD_PCTV_461E: {
1536                 struct i2c_client *client;
1537                 struct i2c_adapter *i2c_adapter;
1538                 struct i2c_board_info board_info;
1539                 struct m88ds3103_platform_data m88ds3103_pdata = {};
1540                 struct ts2020_config ts2020_config = {};
1541                 struct a8293_platform_data a8293_pdata = {};
1542
1543                 /* attach demod */
1544                 m88ds3103_pdata.clk = 27000000;
1545                 m88ds3103_pdata.i2c_wr_max = 33;
1546                 m88ds3103_pdata.ts_mode = M88DS3103_TS_PARALLEL;
1547                 m88ds3103_pdata.ts_clk = 16000;
1548                 m88ds3103_pdata.ts_clk_pol = 1;
1549                 m88ds3103_pdata.agc = 0x99;
1550                 memset(&board_info, 0, sizeof(board_info));
1551                 strlcpy(board_info.type, "m88ds3103", I2C_NAME_SIZE);
1552                 board_info.addr = 0x68;
1553                 board_info.platform_data = &m88ds3103_pdata;
1554                 request_module("m88ds3103");
1555                 client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &board_info);
1556                 if (client == NULL || client->dev.driver == NULL) {
1557                         result = -ENODEV;
1558                         goto out_free;
1559                 }
1560                 if (!try_module_get(client->dev.driver->owner)) {
1561                         i2c_unregister_device(client);
1562                         result = -ENODEV;
1563                         goto out_free;
1564                 }
1565                 dvb->fe[0] = m88ds3103_pdata.get_dvb_frontend(client);
1566                 i2c_adapter = m88ds3103_pdata.get_i2c_adapter(client);
1567                 dvb->i2c_client_demod = client;
1568
1569                 /* attach tuner */
1570                 ts2020_config.fe = dvb->fe[0];
1571                 memset(&board_info, 0, sizeof(board_info));
1572                 strlcpy(board_info.type, "ts2022", I2C_NAME_SIZE);
1573                 board_info.addr = 0x60;
1574                 board_info.platform_data = &ts2020_config;
1575                 request_module("ts2020");
1576                 client = i2c_new_device(i2c_adapter, &board_info);
1577                 if (client == NULL || client->dev.driver == NULL) {
1578                         module_put(dvb->i2c_client_demod->dev.driver->owner);
1579                         i2c_unregister_device(dvb->i2c_client_demod);
1580                         result = -ENODEV;
1581                         goto out_free;
1582                 }
1583                 if (!try_module_get(client->dev.driver->owner)) {
1584                         i2c_unregister_device(client);
1585                         module_put(dvb->i2c_client_demod->dev.driver->owner);
1586                         i2c_unregister_device(dvb->i2c_client_demod);
1587                         result = -ENODEV;
1588                         goto out_free;
1589                 }
1590                 dvb->i2c_client_tuner = client;
1591                 /* delegate signal strength measurement to tuner */
1592                 dvb->fe[0]->ops.read_signal_strength =
1593                                 dvb->fe[0]->ops.tuner_ops.get_rf_strength;
1594
1595                 /* attach SEC */
1596                 a8293_pdata.dvb_frontend = dvb->fe[0];
1597                 memset(&board_info, 0, sizeof(board_info));
1598                 strlcpy(board_info.type, "a8293", I2C_NAME_SIZE);
1599                 board_info.addr = 0x08;
1600                 board_info.platform_data = &a8293_pdata;
1601                 request_module("a8293");
1602                 client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &board_info);
1603                 if (client == NULL || client->dev.driver == NULL) {
1604                         module_put(dvb->i2c_client_tuner->dev.driver->owner);
1605                         i2c_unregister_device(dvb->i2c_client_tuner);
1606                         module_put(dvb->i2c_client_demod->dev.driver->owner);
1607                         i2c_unregister_device(dvb->i2c_client_demod);
1608                         result = -ENODEV;
1609                         goto out_free;
1610                 }
1611                 if (!try_module_get(client->dev.driver->owner)) {
1612                         i2c_unregister_device(client);
1613                         module_put(dvb->i2c_client_tuner->dev.driver->owner);
1614                         i2c_unregister_device(dvb->i2c_client_tuner);
1615                         module_put(dvb->i2c_client_demod->dev.driver->owner);
1616                         i2c_unregister_device(dvb->i2c_client_demod);
1617                         result = -ENODEV;
1618                         goto out_free;
1619                 }
1620                 dvb->i2c_client_sec = client;
1621                 break;
1622         }
1623         case EM28178_BOARD_PCTV_292E:
1624                 {
1625                         struct i2c_adapter *adapter;
1626                         struct i2c_client *client;
1627                         struct i2c_board_info info;
1628                         struct si2168_config si2168_config;
1629                         struct si2157_config si2157_config;
1630
1631                         /* attach demod */
1632                         memset(&si2168_config, 0, sizeof(si2168_config));
1633                         si2168_config.i2c_adapter = &adapter;
1634                         si2168_config.fe = &dvb->fe[0];
1635                         si2168_config.ts_mode = SI2168_TS_PARALLEL;
1636                         memset(&info, 0, sizeof(struct i2c_board_info));
1637                         strlcpy(info.type, "si2168", I2C_NAME_SIZE);
1638                         info.addr = 0x64;
1639                         info.platform_data = &si2168_config;
1640                         request_module(info.type);
1641                         client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info);
1642                         if (client == NULL || client->dev.driver == NULL) {
1643                                 result = -ENODEV;
1644                                 goto out_free;
1645                         }
1646
1647                         if (!try_module_get(client->dev.driver->owner)) {
1648                                 i2c_unregister_device(client);
1649                                 result = -ENODEV;
1650                                 goto out_free;
1651                         }
1652
1653                         dvb->i2c_client_demod = client;
1654
1655                         /* attach tuner */
1656                         memset(&si2157_config, 0, sizeof(si2157_config));
1657                         si2157_config.fe = dvb->fe[0];
1658                         si2157_config.if_port = 1;
1659                         memset(&info, 0, sizeof(struct i2c_board_info));
1660                         strlcpy(info.type, "si2157", I2C_NAME_SIZE);
1661                         info.addr = 0x60;
1662                         info.platform_data = &si2157_config;
1663                         request_module(info.type);
1664                         client = i2c_new_device(adapter, &info);
1665                         if (client == NULL || client->dev.driver == NULL) {
1666                                 module_put(dvb->i2c_client_demod->dev.driver->owner);
1667                                 i2c_unregister_device(dvb->i2c_client_demod);
1668                                 result = -ENODEV;
1669                                 goto out_free;
1670                         }
1671
1672                         if (!try_module_get(client->dev.driver->owner)) {
1673                                 i2c_unregister_device(client);
1674                                 module_put(dvb->i2c_client_demod->dev.driver->owner);
1675                                 i2c_unregister_device(dvb->i2c_client_demod);
1676                                 result = -ENODEV;
1677                                 goto out_free;
1678                         }
1679
1680                         dvb->i2c_client_tuner = client;
1681                         dvb->fe[0]->ops.set_lna = em28xx_pctv_292e_set_lna;
1682                 }
1683                 break;
1684         case EM28178_BOARD_TERRATEC_T2_STICK_HD:
1685                 {
1686                         struct i2c_adapter *adapter;
1687                         struct i2c_client *client;
1688                         struct i2c_board_info info;
1689                         struct si2168_config si2168_config;
1690                         struct si2157_config si2157_config;
1691
1692                         /* attach demod */
1693                         memset(&si2168_config, 0, sizeof(si2168_config));
1694                         si2168_config.i2c_adapter = &adapter;
1695                         si2168_config.fe = &dvb->fe[0];
1696                         si2168_config.ts_mode = SI2168_TS_PARALLEL;
1697                         memset(&info, 0, sizeof(struct i2c_board_info));
1698                         strlcpy(info.type, "si2168", I2C_NAME_SIZE);
1699                         info.addr = 0x64;
1700                         info.platform_data = &si2168_config;
1701                         request_module(info.type);
1702                         client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info);
1703                         if (client == NULL || client->dev.driver == NULL) {
1704                                 result = -ENODEV;
1705                                 goto out_free;
1706                         }
1707
1708                         if (!try_module_get(client->dev.driver->owner)) {
1709                                 i2c_unregister_device(client);
1710                                 result = -ENODEV;
1711                                 goto out_free;
1712                         }
1713
1714                         dvb->i2c_client_demod = client;
1715
1716                         /* attach tuner */
1717                         memset(&si2157_config, 0, sizeof(si2157_config));
1718                         si2157_config.fe = dvb->fe[0];
1719                         si2157_config.if_port = 0;
1720                         memset(&info, 0, sizeof(struct i2c_board_info));
1721                         strlcpy(info.type, "si2146", I2C_NAME_SIZE);
1722                         info.addr = 0x60;
1723                         info.platform_data = &si2157_config;
1724                         request_module("si2157");
1725                         client = i2c_new_device(adapter, &info);
1726                         if (client == NULL || client->dev.driver == NULL) {
1727                                 module_put(dvb->i2c_client_demod->dev.driver->owner);
1728                                 i2c_unregister_device(dvb->i2c_client_demod);
1729                                 result = -ENODEV;
1730                                 goto out_free;
1731                         }
1732
1733                         if (!try_module_get(client->dev.driver->owner)) {
1734                                 i2c_unregister_device(client);
1735                                 module_put(dvb->i2c_client_demod->dev.driver->owner);
1736                                 i2c_unregister_device(dvb->i2c_client_demod);
1737                                 result = -ENODEV;
1738                                 goto out_free;
1739                         }
1740
1741                         dvb->i2c_client_tuner = client;
1742                 }
1743                 break;
1744         default:
1745                 em28xx_errdev("/2: The frontend of your DVB/ATSC card"
1746                                 " isn't supported yet\n");
1747                 break;
1748         }
1749         if (NULL == dvb->fe[0]) {
1750                 em28xx_errdev("/2: frontend initialization failed\n");
1751                 result = -EINVAL;
1752                 goto out_free;
1753         }
1754         /* define general-purpose callback pointer */
1755         dvb->fe[0]->callback = em28xx_tuner_callback;
1756         if (dvb->fe[1])
1757                 dvb->fe[1]->callback = em28xx_tuner_callback;
1758
1759         /* register everything */
1760         result = em28xx_register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
1761
1762         if (result < 0)
1763                 goto out_free;
1764
1765         em28xx_info("DVB extension successfully initialized\n");
1766
1767         kref_get(&dev->ref);
1768
1769 ret:
1770         em28xx_set_mode(dev, EM28XX_SUSPEND);
1771         mutex_unlock(&dev->lock);
1772         return result;
1773
1774 out_free:
1775         kfree(dvb);
1776         dev->dvb = NULL;
1777         goto ret;
1778 }
1779
1780 static inline void prevent_sleep(struct dvb_frontend_ops *ops)
1781 {
1782         ops->set_voltage = NULL;
1783         ops->sleep = NULL;
1784         ops->tuner_ops.sleep = NULL;
1785 }
1786
1787 static int em28xx_dvb_fini(struct em28xx *dev)
1788 {
1789         struct em28xx_dvb *dvb;
1790         struct i2c_client *client;
1791
1792         if (dev->is_audio_only) {
1793                 /* Shouldn't initialize IR for this interface */
1794                 return 0;
1795         }
1796
1797         if (!dev->board.has_dvb) {
1798                 /* This device does not support the extension */
1799                 return 0;
1800         }
1801
1802         if (!dev->dvb)
1803                 return 0;
1804
1805         em28xx_info("Closing DVB extension\n");
1806
1807         dvb = dev->dvb;
1808
1809         em28xx_uninit_usb_xfer(dev, EM28XX_DIGITAL_MODE);
1810
1811         if (dev->disconnected) {
1812                 /* We cannot tell the device to sleep
1813                  * once it has been unplugged. */
1814                 if (dvb->fe[0]) {
1815                         prevent_sleep(&dvb->fe[0]->ops);
1816                         dvb->fe[0]->exit = DVB_FE_DEVICE_REMOVED;
1817                 }
1818                 if (dvb->fe[1]) {
1819                         prevent_sleep(&dvb->fe[1]->ops);
1820                         dvb->fe[1]->exit = DVB_FE_DEVICE_REMOVED;
1821                 }
1822         }
1823
1824         /* remove I2C SEC */
1825         client = dvb->i2c_client_sec;
1826         if (client) {
1827                 module_put(client->dev.driver->owner);
1828                 i2c_unregister_device(client);
1829         }
1830
1831         /* remove I2C tuner */
1832         client = dvb->i2c_client_tuner;
1833         if (client) {
1834                 module_put(client->dev.driver->owner);
1835                 i2c_unregister_device(client);
1836         }
1837
1838         /* remove I2C demod */
1839         client = dvb->i2c_client_demod;
1840         if (client) {
1841                 module_put(client->dev.driver->owner);
1842                 i2c_unregister_device(client);
1843         }
1844
1845         em28xx_unregister_dvb(dvb);
1846         kfree(dvb);
1847         dev->dvb = NULL;
1848         kref_put(&dev->ref, em28xx_free_device);
1849
1850         return 0;
1851 }
1852
1853 static int em28xx_dvb_suspend(struct em28xx *dev)
1854 {
1855         int ret = 0;
1856
1857         if (dev->is_audio_only)
1858                 return 0;
1859
1860         if (!dev->board.has_dvb)
1861                 return 0;
1862
1863         em28xx_info("Suspending DVB extension\n");
1864         if (dev->dvb) {
1865                 struct em28xx_dvb *dvb = dev->dvb;
1866
1867                 if (dvb->fe[0]) {
1868                         ret = dvb_frontend_suspend(dvb->fe[0]);
1869                         em28xx_info("fe0 suspend %d\n", ret);
1870                 }
1871                 if (dvb->fe[1]) {
1872                         dvb_frontend_suspend(dvb->fe[1]);
1873                         em28xx_info("fe1 suspend %d\n", ret);
1874                 }
1875         }
1876
1877         return 0;
1878 }
1879
1880 static int em28xx_dvb_resume(struct em28xx *dev)
1881 {
1882         int ret = 0;
1883
1884         if (dev->is_audio_only)
1885                 return 0;
1886
1887         if (!dev->board.has_dvb)
1888                 return 0;
1889
1890         em28xx_info("Resuming DVB extension\n");
1891         if (dev->dvb) {
1892                 struct em28xx_dvb *dvb = dev->dvb;
1893
1894                 if (dvb->fe[0]) {
1895                         ret = dvb_frontend_resume(dvb->fe[0]);
1896                         em28xx_info("fe0 resume %d\n", ret);
1897                 }
1898
1899                 if (dvb->fe[1]) {
1900                         ret = dvb_frontend_resume(dvb->fe[1]);
1901                         em28xx_info("fe1 resume %d\n", ret);
1902                 }
1903         }
1904
1905         return 0;
1906 }
1907
1908 static struct em28xx_ops dvb_ops = {
1909         .id   = EM28XX_DVB,
1910         .name = "Em28xx dvb Extension",
1911         .init = em28xx_dvb_init,
1912         .fini = em28xx_dvb_fini,
1913         .suspend = em28xx_dvb_suspend,
1914         .resume = em28xx_dvb_resume,
1915 };
1916
1917 static int __init em28xx_dvb_register(void)
1918 {
1919         return em28xx_register_extension(&dvb_ops);
1920 }
1921
1922 static void __exit em28xx_dvb_unregister(void)
1923 {
1924         em28xx_unregister_extension(&dvb_ops);
1925 }
1926
1927 module_init(em28xx_dvb_register);
1928 module_exit(em28xx_dvb_unregister);