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 "mt352.h"
  42 #include "mt352_priv.h" /* FIXME */
  43 #include "tda1002x.h"
  44 #include "drx39xyj/drx39xxj.h"
  45 #include "tda18271.h"
  46 #include "s921.h"
  47 #include "drxd.h"
  48 #include "cxd2820r.h"
  49 #include "tda18271c2dd.h"
  50 #include "drxk.h"
  51 #include "tda10071.h"
  52 #include "tda18212.h"
  53 #include "a8293.h"
  54 #include "qt1010.h"
  55 #include "mb86a20s.h"
  56 #include "m88ds3103.h"
  57 #include "m88ts2022.h"
  58
  59 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
  60 MODULE_LICENSE("GPL");
  61 MODULE_DESCRIPTION(DRIVER_DESC " - digital TV interface");
  62 MODULE_VERSION(EM28XX_VERSION);
  63
  64
  65 static unsigned int debug;
  66 module_param(debug, int, 0644);
  67 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
  68
  69 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  70
  71 #define dprintk(level, fmt, arg...) do {                        \
  72 if (debug >= level)                                             \
  73         printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
  74 } while (0)
  75
  76 struct em28xx_dvb {
  77         struct dvb_frontend        *fe[2];
  78
  79         /* feed count management */
  80         struct mutex               lock;
  81         int                        nfeeds;
  82
  83         /* general boilerplate stuff */
  84         struct dvb_adapter         adapter;
  85         struct dvb_demux           demux;
  86         struct dmxdev              dmxdev;
  87         struct dmx_frontend        fe_hw;
  88         struct dmx_frontend        fe_mem;
  89         struct dvb_net             net;
  90
  91         /* Due to DRX-K - probably need changes */
  92         int (*gate_ctrl)(struct dvb_frontend *, int);
  93         struct semaphore      pll_mutex;
  94         bool                    dont_attach_fe1;
  95         int                     lna_gpio;
  96         struct i2c_client       *i2c_client_tuner;
  97 };
  98
  99
 100 static inline void print_err_status(struct em28xx *dev,
 101                                      int packet, int status)
 102 {
 103         char *errmsg = "Unknown";
 104
 105         switch (status) {
 106         case -ENOENT:
 107                 errmsg = "unlinked synchronuously";
 108                 break;
 109         case -ECONNRESET:
 110                 errmsg = "unlinked asynchronuously";
 111                 break;
 112         case -ENOSR:
 113                 errmsg = "Buffer error (overrun)";
 114                 break;
 115         case -EPIPE:
 116                 errmsg = "Stalled (device not responding)";
 117                 break;
 118         case -EOVERFLOW:
 119                 errmsg = "Babble (bad cable?)";
 120                 break;
 121         case -EPROTO:
 122                 errmsg = "Bit-stuff error (bad cable?)";
 123                 break;
 124         case -EILSEQ:
 125                 errmsg = "CRC/Timeout (could be anything)";
 126                 break;
 127         case -ETIME:
 128                 errmsg = "Device does not respond";
 129                 break;
 130         }
 131         if (packet < 0) {
 132                 dprintk(1, "URB status %d [%s].\n", status, errmsg);
 133         } else {
 134                 dprintk(1, "URB packet %d, status %d [%s].\n",
 135                         packet, status, errmsg);
 136         }
 137 }
 138
 139 static inline int em28xx_dvb_urb_data_copy(struct em28xx *dev, struct urb *urb)
 140 {
 141         int xfer_bulk, num_packets, i;
 142
 143         if (!dev)
 144                 return 0;
 145
 146         if (dev->disconnected)
 147                 return 0;
 148
 149         if (urb->status < 0)
 150                 print_err_status(dev, -1, urb->status);
 151
 152         xfer_bulk = usb_pipebulk(urb->pipe);
 153
 154         if (xfer_bulk) /* bulk */
 155                 num_packets = 1;
 156         else /* isoc */
 157                 num_packets = urb->number_of_packets;
 158
 159         for (i = 0; i < num_packets; i++) {
 160                 if (xfer_bulk) {
 161                         if (urb->status < 0) {
 162                                 print_err_status(dev, i, urb->status);
 163                                 if (urb->status != -EPROTO)
 164                                         continue;
 165                         }
 166                         if (!urb->actual_length)
 167                                 continue;
 168                         dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer,
 169                                         urb->actual_length);
 170                 } else {
 171                         if (urb->iso_frame_desc[i].status < 0) {
 172                                 print_err_status(dev, i,
 173                                                  urb->iso_frame_desc[i].status);
 174                                 if (urb->iso_frame_desc[i].status != -EPROTO)
 175                                         continue;
 176                         }
 177                         if (!urb->iso_frame_desc[i].actual_length)
 178                                 continue;
 179                         dvb_dmx_swfilter(&dev->dvb->demux,
 180                                          urb->transfer_buffer +
 181                                          urb->iso_frame_desc[i].offset,
 182                                          urb->iso_frame_desc[i].actual_length);
 183                 }
 184         }
 185
 186         return 0;
 187 }
 188
 189 static int em28xx_start_streaming(struct em28xx_dvb *dvb)
 190 {
 191         int rc;
 192         struct em28xx_i2c_bus *i2c_bus = dvb->adapter.priv;
 193         struct em28xx *dev = i2c_bus->dev;
 194         int dvb_max_packet_size, packet_multiplier, dvb_alt;
 195
 196         if (dev->dvb_xfer_bulk) {
 197                 if (!dev->dvb_ep_bulk)
 198                         return -ENODEV;
 199                 dvb_max_packet_size = 512; /* USB 2.0 spec */
 200                 packet_multiplier = EM28XX_DVB_BULK_PACKET_MULTIPLIER;
 201                 dvb_alt = 0;
 202         } else { /* isoc */
 203                 if (!dev->dvb_ep_isoc)
 204                         return -ENODEV;
 205                 dvb_max_packet_size = dev->dvb_max_pkt_size_isoc;
 206                 if (dvb_max_packet_size < 0)
 207                         return dvb_max_packet_size;
 208                 packet_multiplier = EM28XX_DVB_NUM_ISOC_PACKETS;
 209                 dvb_alt = dev->dvb_alt_isoc;
 210         }
 211
 212         usb_set_interface(dev->udev, dev->ifnum, dvb_alt);
 213         rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 214         if (rc < 0)
 215                 return rc;
 216
 217         dprintk(1, "Using %d buffers each with %d x %d bytes, alternate %d\n",
 218                 EM28XX_DVB_NUM_BUFS,
 219                 packet_multiplier,
 220                 dvb_max_packet_size, dvb_alt);
 221
 222         return em28xx_init_usb_xfer(dev, EM28XX_DIGITAL_MODE,
 223                                     dev->dvb_xfer_bulk,
 224                                     EM28XX_DVB_NUM_BUFS,
 225                                     dvb_max_packet_size,
 226                                     packet_multiplier,
 227                                     em28xx_dvb_urb_data_copy);
 228 }
 229
 230 static int em28xx_stop_streaming(struct em28xx_dvb *dvb)
 231 {
 232         struct em28xx_i2c_bus *i2c_bus = dvb->adapter.priv;
 233         struct em28xx *dev = i2c_bus->dev;
 234
 235         em28xx_stop_urbs(dev);
 236
 237         return 0;
 238 }
 239
 240 static int em28xx_start_feed(struct dvb_demux_feed *feed)
 241 {
 242         struct dvb_demux *demux  = feed->demux;
 243         struct em28xx_dvb *dvb = demux->priv;
 244         int rc, ret;
 245
 246         if (!demux->dmx.frontend)
 247                 return -EINVAL;
 248
 249         mutex_lock(&dvb->lock);
 250         dvb->nfeeds++;
 251         rc = dvb->nfeeds;
 252
 253         if (dvb->nfeeds == 1) {
 254                 ret = em28xx_start_streaming(dvb);
 255                 if (ret < 0)
 256                         rc = ret;
 257         }
 258
 259         mutex_unlock(&dvb->lock);
 260         return rc;
 261 }
 262
 263 static int em28xx_stop_feed(struct dvb_demux_feed *feed)
 264 {
 265         struct dvb_demux *demux  = feed->demux;
 266         struct em28xx_dvb *dvb = demux->priv;
 267         int err = 0;
 268
 269         mutex_lock(&dvb->lock);
 270         dvb->nfeeds--;
 271
 272         if (0 == dvb->nfeeds)
 273                 err = em28xx_stop_streaming(dvb);
 274
 275         mutex_unlock(&dvb->lock);
 276         return err;
 277 }
 278
 279
 280
 281 /* ------------------------------------------------------------------ */
 282 static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
 283 {
 284         struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
 285         struct em28xx *dev = i2c_bus->dev;
 286
 287         if (acquire)
 288                 return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 289         else
 290                 return em28xx_set_mode(dev, EM28XX_SUSPEND);
 291 }
 292
 293 /* ------------------------------------------------------------------ */
 294
 295 static struct lgdt330x_config em2880_lgdt3303_dev = {
 296         .demod_address = 0x0e,
 297         .demod_chip = LGDT3303,
 298 };
 299
 300 static struct lgdt3305_config em2870_lgdt3304_dev = {
 301         .i2c_addr           = 0x0e,
 302         .demod_chip         = LGDT3304,
 303         .spectral_inversion = 1,
 304         .deny_i2c_rptr      = 1,
 305         .mpeg_mode          = LGDT3305_MPEG_PARALLEL,
 306         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 307         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 308         .vsb_if_khz         = 3250,
 309         .qam_if_khz         = 4000,
 310 };
 311
 312 static struct lgdt3305_config em2874_lgdt3305_dev = {
 313         .i2c_addr           = 0x0e,
 314         .demod_chip         = LGDT3305,
 315         .spectral_inversion = 1,
 316         .deny_i2c_rptr      = 0,
 317         .mpeg_mode          = LGDT3305_MPEG_SERIAL,
 318         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 319         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 320         .vsb_if_khz         = 3250,
 321         .qam_if_khz         = 4000,
 322 };
 323
 324 static struct lgdt3305_config em2874_lgdt3305_nogate_dev = {
 325         .i2c_addr           = 0x0e,
 326         .demod_chip         = LGDT3305,
 327         .spectral_inversion = 1,
 328         .deny_i2c_rptr      = 1,
 329         .mpeg_mode          = LGDT3305_MPEG_SERIAL,
 330         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 331         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 332         .vsb_if_khz         = 3600,
 333         .qam_if_khz         = 3600,
 334 };
 335
 336 static struct s921_config sharp_isdbt = {
 337         .demod_address = 0x30 >> 1
 338 };
 339
 340 static struct zl10353_config em28xx_zl10353_with_xc3028 = {
 341         .demod_address = (0x1e >> 1),
 342         .no_tuner = 1,
 343         .parallel_ts = 1,
 344         .if2 = 45600,
 345 };
 346
 347 static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
 348         .demod_address = 0x32 >> 1,
 349         .output_mode   = S5H1409_PARALLEL_OUTPUT,
 350         .gpio          = S5H1409_GPIO_OFF,
 351         .inversion     = S5H1409_INVERSION_OFF,
 352         .status_mode   = S5H1409_DEMODLOCKING,
 353         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
 354 };
 355
 356 static struct tda18271_std_map kworld_a340_std_map = {
 357         .atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 0,
 358                       .if_lvl = 1, .rfagc_top = 0x37, },
 359         .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 1,
 360                       .if_lvl = 1, .rfagc_top = 0x37, },
 361 };
 362
 363 static struct tda18271_config kworld_a340_config = {
 364         .std_map           = &kworld_a340_std_map,
 365 };
 366
 367 static struct tda18271_config kworld_ub435q_v2_config = {
 368         .std_map        = &kworld_a340_std_map,
 369         .gate           = TDA18271_GATE_DIGITAL,
 370 };
 371
 372 static struct tda18212_config kworld_ub435q_v3_config = {
 373         .i2c_address    = 0x60,
 374         .if_atsc_vsb    = 3600,
 375         .if_atsc_qam    = 3600,
 376 };
 377
 378 static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
 379         .demod_address = (0x1e >> 1),
 380         .no_tuner = 1,
 381         .disable_i2c_gate_ctrl = 1,
 382         .parallel_ts = 1,
 383         .if2 = 45600,
 384 };
 385
 386 static struct drxd_config em28xx_drxd = {
 387         .demod_address = 0x70,
 388         .demod_revision = 0xa2,
 389         .pll_type = DRXD_PLL_NONE,
 390         .clock = 12000,
 391         .insert_rs_byte = 1,
 392         .IF = 42800000,
 393         .disable_i2c_gate_ctrl = 1,
 394 };
 395
 396 static struct drxk_config terratec_h5_drxk = {
 397         .adr = 0x29,
 398         .single_master = 1,
 399         .no_i2c_bridge = 1,
 400         .microcode_name = "dvb-usb-terratec-h5-drxk.fw",
 401         .qam_demod_parameter_count = 2,
 402 };
 403
 404 static struct drxk_config hauppauge_930c_drxk = {
 405         .adr = 0x29,
 406         .single_master = 1,
 407         .no_i2c_bridge = 1,
 408         .microcode_name = "dvb-usb-hauppauge-hvr930c-drxk.fw",
 409         .chunk_size = 56,
 410         .qam_demod_parameter_count = 2,
 411 };
 412
 413 static struct drxk_config terratec_htc_stick_drxk = {
 414         .adr = 0x29,
 415         .single_master = 1,
 416         .no_i2c_bridge = 1,
 417         .microcode_name = "dvb-usb-terratec-htc-stick-drxk.fw",
 418         .chunk_size = 54,
 419         .qam_demod_parameter_count = 2,
 420         /* Required for the antenna_gpio to disable LNA. */
 421         .antenna_dvbt = true,
 422         /* The windows driver uses the same. This will disable LNA. */
 423         .antenna_gpio = 0x6,
 424 };
 425
 426 static struct drxk_config maxmedia_ub425_tc_drxk = {
 427         .adr = 0x29,
 428         .single_master = 1,
 429         .no_i2c_bridge = 1,
 430         .microcode_name = "dvb-demod-drxk-01.fw",
 431         .chunk_size = 62,
 432         .qam_demod_parameter_count = 2,
 433 };
 434
 435 static struct drxk_config pctv_520e_drxk = {
 436         .adr = 0x29,
 437         .single_master = 1,
 438         .microcode_name = "dvb-demod-drxk-pctv.fw",
 439         .qam_demod_parameter_count = 2,
 440         .chunk_size = 58,
 441         .antenna_dvbt = true, /* disable LNA */
 442         .antenna_gpio = (1 << 2), /* disable LNA */
 443 };
 444
 445 static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
 446 {
 447         struct em28xx_dvb *dvb = fe->sec_priv;
 448         int status;
 449
 450         if (!dvb)
 451                 return -EINVAL;
 452
 453         if (enable) {
 454                 down(&dvb->pll_mutex);
 455                 status = dvb->gate_ctrl(fe, 1);
 456         } else {
 457                 status = dvb->gate_ctrl(fe, 0);
 458                 up(&dvb->pll_mutex);
 459         }
 460         return status;
 461 }
 462
 463 static void hauppauge_hvr930c_init(struct em28xx *dev)
 464 {
 465         int i;
 466
 467         struct em28xx_reg_seq hauppauge_hvr930c_init[] = {
 468                 {EM2874_R80_GPIO_P0_CTRL,       0xff,   0xff,   0x65},
 469                 {EM2874_R80_GPIO_P0_CTRL,       0xfb,   0xff,   0x32},
 470                 {EM2874_R80_GPIO_P0_CTRL,       0xff,   0xff,   0xb8},
 471                 {       -1,                     -1,     -1,     -1},
 472         };
 473         struct em28xx_reg_seq hauppauge_hvr930c_end[] = {
 474                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x01},
 475                 {EM2874_R80_GPIO_P0_CTRL,       0xaf,   0xff,   0x65},
 476                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x76},
 477                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x01},
 478                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x0b},
 479                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x40},
 480
 481                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x65},
 482                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x65},
 483                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x0b},
 484                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x65},
 485
 486                 {       -1,                     -1,     -1,     -1},
 487         };
 488
 489         struct {
 490                 unsigned char r[4];
 491                 int len;
 492         } regs[] = {
 493                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 494                 {{ 0x01, 0x02 }, 2},
 495                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 496                 {{ 0x01, 0x00 }, 2},
 497                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 498                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 499                 {{ 0x01, 0x00 }, 2},
 500                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 501                 {{ 0x04, 0x00 }, 2},
 502                 {{ 0x00, 0x04 }, 2},
 503                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 504                 {{ 0x04, 0x14 }, 2},
 505                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 506         };
 507
 508         em28xx_gpio_set(dev, hauppauge_hvr930c_init);
 509         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 510         msleep(10);
 511         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 512         msleep(10);
 513
 514         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 515
 516         for (i = 0; i < ARRAY_SIZE(regs); i++)
 517                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 518         em28xx_gpio_set(dev, hauppauge_hvr930c_end);
 519
 520         msleep(100);
 521
 522         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 523         msleep(30);
 524
 525         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 526         msleep(10);
 527
 528 }
 529
 530 static void terratec_h5_init(struct em28xx *dev)
 531 {
 532         int i;
 533         struct em28xx_reg_seq terratec_h5_init[] = {
 534                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 535                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 536                 {EM2874_R80_GPIO_P0_CTRL,       0xf2,   0xff,   50},
 537                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 538                 {       -1,                     -1,     -1,     -1},
 539         };
 540         struct em28xx_reg_seq terratec_h5_end[] = {
 541                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 542                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   50},
 543                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 544                 {       -1,                     -1,     -1,     -1},
 545         };
 546         struct {
 547                 unsigned char r[4];
 548                 int len;
 549         } regs[] = {
 550                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 551                 {{ 0x01, 0x02 }, 2},
 552                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 553                 {{ 0x01, 0x00 }, 2},
 554                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 555                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 556                 {{ 0x01, 0x00 }, 2},
 557                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 558                 {{ 0x04, 0x00 }, 2},
 559                 {{ 0x00, 0x04 }, 2},
 560                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 561                 {{ 0x04, 0x14 }, 2},
 562                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 563         };
 564
 565         em28xx_gpio_set(dev, terratec_h5_init);
 566         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 567         msleep(10);
 568         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 569         msleep(10);
 570
 571         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 572
 573         for (i = 0; i < ARRAY_SIZE(regs); i++)
 574                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 575         em28xx_gpio_set(dev, terratec_h5_end);
 576 };
 577
 578 static void terratec_htc_stick_init(struct em28xx *dev)
 579 {
 580         int i;
 581
 582         /*
 583          * GPIO configuration:
 584          * 0xff: unknown (does not affect DVB-T).
 585          * 0xf6: DRX-K (demodulator).
 586          * 0xe6: unknown (does not affect DVB-T).
 587          * 0xb6: unknown (does not affect DVB-T).
 588          */
 589         struct em28xx_reg_seq terratec_htc_stick_init[] = {
 590                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 591                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 592                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   50},
 593                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 594                 {       -1,                     -1,     -1,     -1},
 595         };
 596         struct em28xx_reg_seq terratec_htc_stick_end[] = {
 597                 {EM2874_R80_GPIO_P0_CTRL,       0xb6,   0xff,   100},
 598                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   50},
 599                 {       -1,                     -1,     -1,     -1},
 600         };
 601
 602         /*
 603          * Init the analog decoder (not yet supported), but
 604          * it's probably still a good idea.
 605          */
 606         struct {
 607                 unsigned char r[4];
 608                 int len;
 609         } regs[] = {
 610                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 611                 {{ 0x01, 0x02 }, 2},
 612                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 613                 {{ 0x01, 0x00 }, 2},
 614                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 615         };
 616
 617         em28xx_gpio_set(dev, terratec_htc_stick_init);
 618
 619         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 620         msleep(10);
 621         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 622         msleep(10);
 623
 624         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 625
 626         for (i = 0; i < ARRAY_SIZE(regs); i++)
 627                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 628
 629         em28xx_gpio_set(dev, terratec_htc_stick_end);
 630 };
 631
 632 static void terratec_htc_usb_xs_init(struct em28xx *dev)
 633 {
 634         int i;
 635
 636         struct em28xx_reg_seq terratec_htc_usb_xs_init[] = {
 637                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 638                 {EM2874_R80_GPIO_P0_CTRL,       0xb2,   0xff,   100},
 639                 {EM2874_R80_GPIO_P0_CTRL,       0xb2,   0xff,   50},
 640                 {EM2874_R80_GPIO_P0_CTRL,       0xb6,   0xff,   100},
 641                 {       -1,                     -1,     -1,     -1},
 642         };
 643         struct em28xx_reg_seq terratec_htc_usb_xs_end[] = {
 644                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   100},
 645                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   50},
 646                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 647                 {       -1,                     -1,     -1,     -1},
 648         };
 649
 650         /*
 651          * Init the analog decoder (not yet supported), but
 652          * it's probably still a good idea.
 653          */
 654         struct {
 655                 unsigned char r[4];
 656                 int len;
 657         } regs[] = {
 658                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 659                 {{ 0x01, 0x02 }, 2},
 660                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 661                 {{ 0x01, 0x00 }, 2},
 662                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 663                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 664                 {{ 0x01, 0x00 }, 2},
 665                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 666                 {{ 0x04, 0x00 }, 2},
 667                 {{ 0x00, 0x04 }, 2},
 668                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 669                 {{ 0x04, 0x14 }, 2},
 670                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 671         };
 672
 673         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 674
 675         em28xx_gpio_set(dev, terratec_htc_usb_xs_init);
 676
 677         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 678         msleep(10);
 679         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 680         msleep(10);
 681
 682         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 683
 684         for (i = 0; i < ARRAY_SIZE(regs); i++)
 685                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 686
 687         em28xx_gpio_set(dev, terratec_htc_usb_xs_end);
 688 };
 689
 690 static void pctv_520e_init(struct em28xx *dev)
 691 {
 692         /*
 693          * Init AVF4910B analog decoder. Looks like I2C traffic to
 694          * digital demodulator and tuner are routed via AVF4910B.
 695          */
 696         int i;
 697         struct {
 698                 unsigned char r[4];
 699                 int len;
 700         } regs[] = {
 701                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 702                 {{ 0x01, 0x02 }, 2},
 703                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 704                 {{ 0x01, 0x00 }, 2},
 705                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 706                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 707                 {{ 0x01, 0x00 }, 2},
 708                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 709         };
 710
 711         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1; /* 0x41 */
 712
 713         for (i = 0; i < ARRAY_SIZE(regs); i++)
 714                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 715 };
 716
 717 static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe)
 718 {
 719         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 720         struct em28xx *dev = fe->dvb->priv;
 721 #ifdef CONFIG_GPIOLIB
 722         struct em28xx_dvb *dvb = dev->dvb;
 723         int ret;
 724         unsigned long flags;
 725
 726         if (c->lna == 1)
 727                 flags = GPIOF_OUT_INIT_HIGH; /* enable LNA */
 728         else
 729                 flags = GPIOF_OUT_INIT_LOW; /* disable LNA */
 730
 731         ret = gpio_request_one(dvb->lna_gpio, flags, NULL);
 732         if (ret)
 733                 em28xx_errdev("gpio request failed %d\n", ret);
 734         else
 735                 gpio_free(dvb->lna_gpio);
 736
 737         return ret;
 738 #else
 739         dev_warn(&dev->udev->dev, "%s: LNA control is disabled (lna=%u)\n",
 740                         KBUILD_MODNAME, c->lna);
 741         return 0;
 742 #endif
 743 }
 744
 745 static int em28xx_mt352_terratec_xs_init(struct dvb_frontend *fe)
 746 {
 747         /* Values extracted from a USB trace of the Terratec Windows driver */
 748         static u8 clock_config[]   = { CLOCK_CTL,  0x38, 0x2c };
 749         static u8 reset[]          = { RESET,      0x80 };
 750         static u8 adc_ctl_1_cfg[]  = { ADC_CTL_1,  0x40 };
 751         static u8 agc_cfg[]        = { AGC_TARGET, 0x28, 0xa0 };
 752         static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
 753         static u8 rs_err_cfg[]     = { RS_ERR_PER_1, 0x00, 0x4d };
 754         static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
 755         static u8 trl_nom_cfg[]    = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
 756         static u8 tps_given_cfg[]  = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
 757         static u8 tuner_go[]       = { TUNER_GO, 0x01};
 758
 759         mt352_write(fe, clock_config,   sizeof(clock_config));
 760         udelay(200);
 761         mt352_write(fe, reset,          sizeof(reset));
 762         mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));
 763         mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
 764         mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
 765         mt352_write(fe, rs_err_cfg,     sizeof(rs_err_cfg));
 766         mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
 767         mt352_write(fe, trl_nom_cfg,    sizeof(trl_nom_cfg));
 768         mt352_write(fe, tps_given_cfg,  sizeof(tps_given_cfg));
 769         mt352_write(fe, tuner_go,       sizeof(tuner_go));
 770         return 0;
 771 }
 772
 773 static struct mt352_config terratec_xs_mt352_cfg = {
 774         .demod_address = (0x1e >> 1),
 775         .no_tuner = 1,
 776         .if2 = 45600,
 777         .demod_init = em28xx_mt352_terratec_xs_init,
 778 };
 779
 780 static struct tda10023_config em28xx_tda10023_config = {
 781         .demod_address = 0x0c,
 782         .invert = 1,
 783 };
 784
 785 static struct cxd2820r_config em28xx_cxd2820r_config = {
 786         .i2c_address = (0xd8 >> 1),
 787         .ts_mode = CXD2820R_TS_SERIAL,
 788 };
 789
 790 static struct tda18271_config em28xx_cxd2820r_tda18271_config = {
 791         .output_opt = TDA18271_OUTPUT_LT_OFF,
 792         .gate = TDA18271_GATE_DIGITAL,
 793 };
 794
 795 static const struct tda10071_config em28xx_tda10071_config = {
 796         .demod_i2c_addr = 0x55, /* (0xaa >> 1) */
 797         .tuner_i2c_addr = 0x14,
 798         .i2c_wr_max = 64,
 799         .ts_mode = TDA10071_TS_SERIAL,
 800         .spec_inv = 0,
 801         .xtal = 40444000, /* 40.444 MHz */
 802         .pll_multiplier = 20,
 803 };
 804
 805 static const struct a8293_config em28xx_a8293_config = {
 806         .i2c_addr = 0x08, /* (0x10 >> 1) */
 807 };
 808
 809 static struct zl10353_config em28xx_zl10353_no_i2c_gate_dev = {
 810         .demod_address = (0x1e >> 1),
 811         .disable_i2c_gate_ctrl = 1,
 812         .no_tuner = 1,
 813         .parallel_ts = 1,
 814 };
 815 static struct qt1010_config em28xx_qt1010_config = {
 816         .i2c_address = 0x62
 817 };
 818
 819 static const struct mb86a20s_config c3tech_duo_mb86a20s_config = {
 820         .demod_address = 0x10,
 821         .is_serial = true,
 822 };
 823
 824 static struct tda18271_std_map mb86a20s_tda18271_config = {
 825         .dvbt_6   = { .if_freq = 4000, .agc_mode = 3, .std = 4,
 826                       .if_lvl = 1, .rfagc_top = 0x37, },
 827 };
 828
 829 static struct tda18271_config c3tech_duo_tda18271_config = {
 830         .std_map = &mb86a20s_tda18271_config,
 831         .gate    = TDA18271_GATE_DIGITAL,
 832         .small_i2c = TDA18271_03_BYTE_CHUNK_INIT,
 833 };
 834
 835 static const struct m88ds3103_config pctv_461e_m88ds3103_config = {
 836         .i2c_addr = 0x68,
 837         .clock = 27000000,
 838         .i2c_wr_max = 33,
 839         .clock_out = 0,
 840         .ts_mode = M88DS3103_TS_PARALLEL_16,
 841         .agc = 0x99,
 842 };
 843
 844
 845 static struct tda18271_std_map drx_j_std_map = {
 846         .atsc_6   = { .if_freq = 5000, .agc_mode = 3, .std = 0, .if_lvl = 1,
 847                       .rfagc_top = 0x37, },
 848         .qam_6    = { .if_freq = 5380, .agc_mode = 3, .std = 3, .if_lvl = 1,
 849                       .rfagc_top = 0x37, },
 850 };
 851
 852 static struct tda18271_config pinnacle_80e_dvb_config = {
 853         .std_map = &drx_j_std_map,
 854         .gate    = TDA18271_GATE_DIGITAL,
 855         .role    = TDA18271_MASTER,
 856 };
 857
 858 /* ------------------------------------------------------------------ */
 859
 860 static int em28xx_attach_xc3028(u8 addr, struct em28xx *dev)
 861 {
 862         struct dvb_frontend *fe;
 863         struct xc2028_config cfg;
 864         struct xc2028_ctrl ctl;
 865
 866         memset(&cfg, 0, sizeof(cfg));
 867         cfg.i2c_adap  = &dev->i2c_adap[dev->def_i2c_bus];
 868         cfg.i2c_addr  = addr;
 869
 870         memset(&ctl, 0, sizeof(ctl));
 871         em28xx_setup_xc3028(dev, &ctl);
 872         cfg.ctrl  = &ctl;
 873
 874         if (!dev->dvb->fe[0]) {
 875                 em28xx_errdev("/2: dvb frontend not attached. "
 876                                 "Can't attach xc3028\n");
 877                 return -EINVAL;
 878         }
 879
 880         fe = dvb_attach(xc2028_attach, dev->dvb->fe[0], &cfg);
 881         if (!fe) {
 882                 em28xx_errdev("/2: xc3028 attach failed\n");
 883                 dvb_frontend_detach(dev->dvb->fe[0]);
 884                 dev->dvb->fe[0] = NULL;
 885                 return -EINVAL;
 886         }
 887
 888         em28xx_info("%s/2: xc3028 attached\n", dev->name);
 889
 890         return 0;
 891 }
 892
 893 /* ------------------------------------------------------------------ */
 894
 895 static int em28xx_register_dvb(struct em28xx_dvb *dvb, struct module *module,
 896                                struct em28xx *dev, struct device *device)
 897 {
 898         int result;
 899
 900         mutex_init(&dvb->lock);
 901
 902         /* register adapter */
 903         result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
 904                                       adapter_nr);
 905         if (result < 0) {
 906                 printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
 907                        dev->name, result);
 908                 goto fail_adapter;
 909         }
 910
 911         /* Ensure all frontends negotiate bus access */
 912         dvb->fe[0]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 913         if (dvb->fe[1])
 914                 dvb->fe[1]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 915
 916         dvb->adapter.priv = &dev->i2c_bus[dev->def_i2c_bus];
 917
 918         /* register frontend */
 919         result = dvb_register_frontend(&dvb->adapter, dvb->fe[0]);
 920         if (result < 0) {
 921                 printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
 922                        dev->name, result);
 923                 goto fail_frontend0;
 924         }
 925
 926         /* register 2nd frontend */
 927         if (dvb->fe[1]) {
 928                 result = dvb_register_frontend(&dvb->adapter, dvb->fe[1]);
 929                 if (result < 0) {
 930                         printk(KERN_WARNING "%s: 2nd dvb_register_frontend failed (errno = %d)\n",
 931                                 dev->name, result);
 932                         goto fail_frontend1;
 933                 }
 934         }
 935
 936         /* register demux stuff */
 937         dvb->demux.dmx.capabilities =
 938                 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 939                 DMX_MEMORY_BASED_FILTERING;
 940         dvb->demux.priv       = dvb;
 941         dvb->demux.filternum  = 256;
 942         dvb->demux.feednum    = 256;
 943         dvb->demux.start_feed = em28xx_start_feed;
 944         dvb->demux.stop_feed  = em28xx_stop_feed;
 945
 946         result = dvb_dmx_init(&dvb->demux);
 947         if (result < 0) {
 948                 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
 949                        dev->name, result);
 950                 goto fail_dmx;
 951         }
 952
 953         dvb->dmxdev.filternum    = 256;
 954         dvb->dmxdev.demux        = &dvb->demux.dmx;
 955         dvb->dmxdev.capabilities = 0;
 956         result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
 957         if (result < 0) {
 958                 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
 959                        dev->name, result);
 960                 goto fail_dmxdev;
 961         }
 962
 963         dvb->fe_hw.source = DMX_FRONTEND_0;
 964         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 965         if (result < 0) {
 966                 printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
 967                        dev->name, result);
 968                 goto fail_fe_hw;
 969         }
 970
 971         dvb->fe_mem.source = DMX_MEMORY_FE;
 972         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 973         if (result < 0) {
 974                 printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
 975                        dev->name, result);
 976                 goto fail_fe_mem;
 977         }
 978
 979         result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 980         if (result < 0) {
 981                 printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
 982                        dev->name, result);
 983                 goto fail_fe_conn;
 984         }
 985
 986         /* register network adapter */
 987         dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
 988         return 0;
 989
 990 fail_fe_conn:
 991         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 992 fail_fe_mem:
 993         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 994 fail_fe_hw:
 995         dvb_dmxdev_release(&dvb->dmxdev);
 996 fail_dmxdev:
 997         dvb_dmx_release(&dvb->demux);
 998 fail_dmx:
 999         if (dvb->fe[1])
1000                 dvb_unregister_frontend(dvb->fe[1]);
1001         dvb_unregister_frontend(dvb->fe[0]);
1002 fail_frontend1:
1003         if (dvb->fe[1])
1004                 dvb_frontend_detach(dvb->fe[1]);
1005 fail_frontend0:
1006         dvb_frontend_detach(dvb->fe[0]);
1007         dvb_unregister_adapter(&dvb->adapter);
1008 fail_adapter:
1009         return result;
1010 }
1011
1012 static void em28xx_unregister_dvb(struct em28xx_dvb *dvb)
1013 {
1014         dvb_net_release(&dvb->net);
1015         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
1016         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
1017         dvb_dmxdev_release(&dvb->dmxdev);
1018         dvb_dmx_release(&dvb->demux);
1019         if (dvb->fe[1])
1020                 dvb_unregister_frontend(dvb->fe[1]);
1021         dvb_unregister_frontend(dvb->fe[0]);
1022         if (dvb->fe[1] && !dvb->dont_attach_fe1)
1023                 dvb_frontend_detach(dvb->fe[1]);
1024         dvb_frontend_detach(dvb->fe[0]);
1025         dvb_unregister_adapter(&dvb->adapter);
1026 }
1027
1028 static int em28xx_dvb_init(struct em28xx *dev)
1029 {
1030         int result = 0, mfe_shared = 0;
1031         struct em28xx_dvb *dvb;
1032
1033         if (dev->is_audio_only) {
1034                 /* Shouldn't initialize IR for this interface */
1035                 return 0;
1036         }
1037
1038         if (!dev->board.has_dvb) {
1039                 /* This device does not support the extension */
1040                 return 0;
1041         }
1042
1043         em28xx_info("Binding DVB extension\n");
1044
1045         dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
1046         if (dvb == NULL) {
1047                 em28xx_info("em28xx_dvb: memory allocation failed\n");
1048                 return -ENOMEM;
1049         }
1050         dev->dvb = dvb;
1051         dvb->fe[0] = dvb->fe[1] = NULL;
1052
1053         /* pre-allocate DVB usb transfer buffers */
1054         if (dev->dvb_xfer_bulk) {
1055                 result = em28xx_alloc_urbs(dev, EM28XX_DIGITAL_MODE,
1056                                            dev->dvb_xfer_bulk,
1057                                            EM28XX_DVB_NUM_BUFS,
1058                                            512,
1059                                            EM28XX_DVB_BULK_PACKET_MULTIPLIER);
1060         } else {
1061                 result = em28xx_alloc_urbs(dev, EM28XX_DIGITAL_MODE,
1062                                            dev->dvb_xfer_bulk,
1063                                            EM28XX_DVB_NUM_BUFS,
1064                                            dev->dvb_max_pkt_size_isoc,
1065                                            EM28XX_DVB_NUM_ISOC_PACKETS);
1066         }
1067         if (result) {
1068                 em28xx_errdev("em28xx_dvb: failed to pre-allocate USB transfer buffers for DVB.\n");
1069                 kfree(dvb);
1070                 dev->dvb = NULL;
1071                 return result;
1072         }
1073
1074         mutex_lock(&dev->lock);
1075         em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
1076         /* init frontend */
1077         switch (dev->model) {
1078         case EM2874_BOARD_LEADERSHIP_ISDBT:
1079                 dvb->fe[0] = dvb_attach(s921_attach,
1080                                 &sharp_isdbt, &dev->i2c_adap[dev->def_i2c_bus]);
1081
1082                 if (!dvb->fe[0]) {
1083                         result = -EINVAL;
1084                         goto out_free;
1085                 }
1086
1087                 break;
1088         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
1089         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
1090         case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
1091         case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
1092                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
1093                                            &em2880_lgdt3303_dev,
1094                                            &dev->i2c_adap[dev->def_i2c_bus]);
1095                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1096                         result = -EINVAL;
1097                         goto out_free;
1098                 }
1099                 break;
1100         case EM2880_BOARD_KWORLD_DVB_310U:
1101                 dvb->fe[0] = dvb_attach(zl10353_attach,
1102                                            &em28xx_zl10353_with_xc3028,
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_HAUPPAUGE_WINTV_HVR_900:
1110         case EM2882_BOARD_TERRATEC_HYBRID_XS:
1111         case EM2880_BOARD_EMPIRE_DUAL_TV:
1112                 dvb->fe[0] = dvb_attach(zl10353_attach,
1113                                            &em28xx_zl10353_xc3028_no_i2c_gate,
1114                                            &dev->i2c_adap[dev->def_i2c_bus]);
1115                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1116                         result = -EINVAL;
1117                         goto out_free;
1118                 }
1119                 break;
1120         case EM2880_BOARD_TERRATEC_HYBRID_XS:
1121         case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
1122         case EM2881_BOARD_PINNACLE_HYBRID_PRO:
1123         case EM2882_BOARD_DIKOM_DK300:
1124         case EM2882_BOARD_KWORLD_VS_DVBT:
1125                 dvb->fe[0] = dvb_attach(zl10353_attach,
1126                                            &em28xx_zl10353_xc3028_no_i2c_gate,
1127                                            &dev->i2c_adap[dev->def_i2c_bus]);
1128                 if (dvb->fe[0] == NULL) {
1129                         /* This board could have either a zl10353 or a mt352.
1130                            If the chip id isn't for zl10353, try mt352 */
1131                         dvb->fe[0] = dvb_attach(mt352_attach,
1132                                                    &terratec_xs_mt352_cfg,
1133                                                    &dev->i2c_adap[dev->def_i2c_bus]);
1134                 }
1135
1136                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1137                         result = -EINVAL;
1138                         goto out_free;
1139                 }
1140                 break;
1141         case EM2870_BOARD_KWORLD_355U:
1142                 dvb->fe[0] = dvb_attach(zl10353_attach,
1143                                            &em28xx_zl10353_no_i2c_gate_dev,
1144                                            &dev->i2c_adap[dev->def_i2c_bus]);
1145                 if (dvb->fe[0] != NULL)
1146                         dvb_attach(qt1010_attach, dvb->fe[0],
1147                                    &dev->i2c_adap[dev->def_i2c_bus], &em28xx_qt1010_config);
1148                 break;
1149         case EM2883_BOARD_KWORLD_HYBRID_330U:
1150         case EM2882_BOARD_EVGA_INDTUBE:
1151                 dvb->fe[0] = dvb_attach(s5h1409_attach,
1152                                            &em28xx_s5h1409_with_xc3028,
1153                                            &dev->i2c_adap[dev->def_i2c_bus]);
1154                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1155                         result = -EINVAL;
1156                         goto out_free;
1157                 }
1158                 break;
1159         case EM2882_BOARD_KWORLD_ATSC_315U:
1160                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
1161                                            &em2880_lgdt3303_dev,
1162                                            &dev->i2c_adap[dev->def_i2c_bus]);
1163                 if (dvb->fe[0] != NULL) {
1164                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1165                                 &dev->i2c_adap[dev->def_i2c_bus], 0x61, TUNER_THOMSON_DTT761X)) {
1166                                 result = -EINVAL;
1167                                 goto out_free;
1168                         }
1169                 }
1170                 break;
1171         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
1172         case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
1173                 dvb->fe[0] = dvb_attach(drxd_attach, &em28xx_drxd, NULL,
1174                                            &dev->i2c_adap[dev->def_i2c_bus], &dev->udev->dev);
1175                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1176                         result = -EINVAL;
1177                         goto out_free;
1178                 }
1179                 break;
1180         case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
1181                 /* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
1182                 dvb->fe[0] = dvb_attach(tda10023_attach,
1183                         &em28xx_tda10023_config,
1184                         &dev->i2c_adap[dev->def_i2c_bus], 0x48);
1185                 if (dvb->fe[0]) {
1186                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1187                                 &dev->i2c_adap[dev->def_i2c_bus], 0x60, TUNER_PHILIPS_CU1216L)) {
1188                                 result = -EINVAL;
1189                                 goto out_free;
1190                         }
1191                 }
1192                 break;
1193         case EM2870_BOARD_KWORLD_A340:
1194                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1195                                            &em2870_lgdt3304_dev,
1196                                            &dev->i2c_adap[dev->def_i2c_bus]);
1197                 if (dvb->fe[0] != NULL)
1198                         dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1199                                    &dev->i2c_adap[dev->def_i2c_bus], &kworld_a340_config);
1200                 break;
1201         case EM28174_BOARD_PCTV_290E:
1202                 /* set default GPIO0 for LNA, used if GPIOLIB is undefined */
1203                 dvb->lna_gpio = CXD2820R_GPIO_E | CXD2820R_GPIO_O |
1204                                 CXD2820R_GPIO_L;
1205                 dvb->fe[0] = dvb_attach(cxd2820r_attach,
1206                                         &em28xx_cxd2820r_config,
1207                                         &dev->i2c_adap[dev->def_i2c_bus],
1208                                         &dvb->lna_gpio);
1209                 if (dvb->fe[0]) {
1210                         /* FE 0 attach tuner */
1211                         if (!dvb_attach(tda18271_attach,
1212                                         dvb->fe[0],
1213                                         0x60,
1214                                         &dev->i2c_adap[dev->def_i2c_bus],
1215                                         &em28xx_cxd2820r_tda18271_config)) {
1216
1217                                 dvb_frontend_detach(dvb->fe[0]);
1218                                 result = -EINVAL;
1219                                 goto out_free;
1220                         }
1221
1222 #ifdef CONFIG_GPIOLIB
1223                         /* enable LNA for DVB-T, DVB-T2 and DVB-C */
1224                         result = gpio_request_one(dvb->lna_gpio,
1225                                         GPIOF_OUT_INIT_LOW, NULL);
1226                         if (result)
1227                                 em28xx_errdev("gpio request failed %d\n",
1228                                                 result);
1229                         else
1230                                 gpio_free(dvb->lna_gpio);
1231
1232                         result = 0; /* continue even set LNA fails */
1233 #endif
1234                         dvb->fe[0]->ops.set_lna = em28xx_pctv_290e_set_lna;
1235                 }
1236
1237                 break;
1238         case EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C:
1239         {
1240                 struct xc5000_config cfg;
1241                 hauppauge_hvr930c_init(dev);
1242
1243                 dvb->fe[0] = dvb_attach(drxk_attach,
1244                                         &hauppauge_930c_drxk, &dev->i2c_adap[dev->def_i2c_bus]);
1245                 if (!dvb->fe[0]) {
1246                         result = -EINVAL;
1247                         goto out_free;
1248                 }
1249                 /* FIXME: do we need a pll semaphore? */
1250                 dvb->fe[0]->sec_priv = dvb;
1251                 sema_init(&dvb->pll_mutex, 1);
1252                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1253                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1254
1255                 /* Attach xc5000 */
1256                 memset(&cfg, 0, sizeof(cfg));
1257                 cfg.i2c_address  = 0x61;
1258                 cfg.if_khz = 4000;
1259
1260                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1261                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1262                 if (!dvb_attach(xc5000_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus],
1263                                 &cfg)) {
1264                         result = -EINVAL;
1265                         goto out_free;
1266                 }
1267                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1268                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1269
1270                 break;
1271         }
1272         case EM2884_BOARD_TERRATEC_H5:
1273                 terratec_h5_init(dev);
1274
1275                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_h5_drxk, &dev->i2c_adap[dev->def_i2c_bus]);
1276                 if (!dvb->fe[0]) {
1277                         result = -EINVAL;
1278                         goto out_free;
1279                 }
1280                 /* FIXME: do we need a pll semaphore? */
1281                 dvb->fe[0]->sec_priv = dvb;
1282                 sema_init(&dvb->pll_mutex, 1);
1283                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1284                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1285
1286                 /* Attach tda18271 to DVB-C frontend */
1287                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1288                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1289                 if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus], 0x60)) {
1290                         result = -EINVAL;
1291                         goto out_free;
1292                 }
1293                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1294                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1295
1296                 break;
1297         case EM2884_BOARD_C3TECH_DIGITAL_DUO:
1298                 dvb->fe[0] = dvb_attach(mb86a20s_attach,
1299                                            &c3tech_duo_mb86a20s_config,
1300                                            &dev->i2c_adap[dev->def_i2c_bus]);
1301                 if (dvb->fe[0] != NULL)
1302                         dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1303                                    &dev->i2c_adap[dev->def_i2c_bus],
1304                                    &c3tech_duo_tda18271_config);
1305                 break;
1306         case EM28174_BOARD_PCTV_460E:
1307                 /* attach demod */
1308                 dvb->fe[0] = dvb_attach(tda10071_attach,
1309                         &em28xx_tda10071_config, &dev->i2c_adap[dev->def_i2c_bus]);
1310
1311                 /* attach SEC */
1312                 if (dvb->fe[0])
1313                         dvb_attach(a8293_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus],
1314                                 &em28xx_a8293_config);
1315                 break;
1316         case EM2874_BOARD_DELOCK_61959:
1317         case EM2874_BOARD_MAXMEDIA_UB425_TC:
1318                 /* attach demodulator */
1319                 dvb->fe[0] = dvb_attach(drxk_attach, &maxmedia_ub425_tc_drxk,
1320                                 &dev->i2c_adap[dev->def_i2c_bus]);
1321
1322                 if (dvb->fe[0]) {
1323                         /* disable I2C-gate */
1324                         dvb->fe[0]->ops.i2c_gate_ctrl = NULL;
1325
1326                         /* attach tuner */
1327                         if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1328                                         &dev->i2c_adap[dev->def_i2c_bus],
1329                                         &em28xx_cxd2820r_tda18271_config)) {
1330                                 dvb_frontend_detach(dvb->fe[0]);
1331                                 result = -EINVAL;
1332                                 goto out_free;
1333                         }
1334                 }
1335                 break;
1336         case EM2884_BOARD_PCTV_510E:
1337         case EM2884_BOARD_PCTV_520E:
1338                 pctv_520e_init(dev);
1339
1340                 /* attach demodulator */
1341                 dvb->fe[0] = dvb_attach(drxk_attach, &pctv_520e_drxk,
1342                                 &dev->i2c_adap[dev->def_i2c_bus]);
1343
1344                 if (dvb->fe[0]) {
1345                         /* attach tuner */
1346                         if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1347                                         &dev->i2c_adap[dev->def_i2c_bus],
1348                                         &em28xx_cxd2820r_tda18271_config)) {
1349                                 dvb_frontend_detach(dvb->fe[0]);
1350                                 result = -EINVAL;
1351                                 goto out_free;
1352                         }
1353                 }
1354                 break;
1355         case EM2884_BOARD_CINERGY_HTC_STICK:
1356                 terratec_htc_stick_init(dev);
1357
1358                 /* attach demodulator */
1359                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1360                                         &dev->i2c_adap[dev->def_i2c_bus]);
1361                 if (!dvb->fe[0]) {
1362                         result = -EINVAL;
1363                         goto out_free;
1364                 }
1365
1366                 /* Attach the demodulator. */
1367                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1368                                 &dev->i2c_adap[dev->def_i2c_bus],
1369                                 &em28xx_cxd2820r_tda18271_config)) {
1370                         result = -EINVAL;
1371                         goto out_free;
1372                 }
1373                 break;
1374         case EM2884_BOARD_TERRATEC_HTC_USB_XS:
1375                 terratec_htc_usb_xs_init(dev);
1376
1377                 /* attach demodulator */
1378                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1379                                         &dev->i2c_adap[dev->def_i2c_bus]);
1380                 if (!dvb->fe[0]) {
1381                         result = -EINVAL;
1382                         goto out_free;
1383                 }
1384
1385                 /* Attach the demodulator. */
1386                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1387                                 &dev->i2c_adap[dev->def_i2c_bus],
1388                                 &em28xx_cxd2820r_tda18271_config)) {
1389                         result = -EINVAL;
1390                         goto out_free;
1391                 }
1392                 break;
1393         case EM2874_BOARD_KWORLD_UB435Q_V2:
1394                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1395                                         &em2874_lgdt3305_dev,
1396                                         &dev->i2c_adap[dev->def_i2c_bus]);
1397                 if (!dvb->fe[0]) {
1398                         result = -EINVAL;
1399                         goto out_free;
1400                 }
1401
1402                 /* Attach the demodulator. */
1403                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1404                                 &dev->i2c_adap[dev->def_i2c_bus],
1405                                 &kworld_ub435q_v2_config)) {
1406                         result = -EINVAL;
1407                         goto out_free;
1408                 }
1409                 break;
1410         case EM2874_BOARD_KWORLD_UB435Q_V3:
1411                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1412                                         &em2874_lgdt3305_nogate_dev,
1413                                         &dev->i2c_adap[dev->def_i2c_bus]);
1414                 if (!dvb->fe[0]) {
1415                         result = -EINVAL;
1416                         goto out_free;
1417                 }
1418
1419                 /* Attach the demodulator. */
1420                 if (!dvb_attach(tda18212_attach, dvb->fe[0],
1421                                 &dev->i2c_adap[dev->def_i2c_bus],
1422                                 &kworld_ub435q_v3_config)) {
1423                         result = -EINVAL;
1424                         goto out_free;
1425                 }
1426                 break;
1427         case EM2874_BOARD_PCTV_HD_MINI_80E:
1428                 dvb->fe[0] = dvb_attach(drx39xxj_attach, &dev->i2c_adap[dev->def_i2c_bus]);
1429                 if (dvb->fe[0] != NULL) {
1430                         dvb->fe[0] = dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1431                                                 &dev->i2c_adap[dev->def_i2c_bus],
1432                                                 &pinnacle_80e_dvb_config);
1433                         if (!dvb->fe[0]) {
1434                                 result = -EINVAL;
1435                                 goto out_free;
1436                         }
1437                 }
1438                 break;
1439         case EM28178_BOARD_PCTV_461E:
1440                 {
1441                         /* demod I2C adapter */
1442                         struct i2c_adapter *i2c_adapter;
1443                         struct i2c_client *client;
1444                         struct i2c_board_info info;
1445                         struct m88ts2022_config m88ts2022_config = {
1446                                 .clock = 27000000,
1447                         };
1448                         memset(&info, 0, sizeof(struct i2c_board_info));
1449
1450                         /* attach demod */
1451                         dvb->fe[0] = dvb_attach(m88ds3103_attach,
1452                                         &pctv_461e_m88ds3103_config,
1453                                         &dev->i2c_adap[dev->def_i2c_bus],
1454                                         &i2c_adapter);
1455                         if (dvb->fe[0] == NULL) {
1456                                 result = -ENODEV;
1457                                 goto out_free;
1458                         }
1459
1460                         /* attach tuner */
1461                         m88ts2022_config.fe = dvb->fe[0];
1462                         strlcpy(info.type, "m88ts2022", I2C_NAME_SIZE);
1463                         info.addr = 0x60;
1464                         info.platform_data = &m88ts2022_config;
1465                         request_module("m88ts2022");
1466                         client = i2c_new_device(i2c_adapter, &info);
1467                         if (client == NULL || client->dev.driver == NULL) {
1468                                 dvb_frontend_detach(dvb->fe[0]);
1469                                 result = -ENODEV;
1470                                 goto out_free;
1471                         }
1472
1473                         if (!try_module_get(client->dev.driver->owner)) {
1474                                 i2c_unregister_device(client);
1475                                 dvb_frontend_detach(dvb->fe[0]);
1476                                 result = -ENODEV;
1477                                 goto out_free;
1478                         }
1479
1480                         /* delegate signal strength measurement to tuner */
1481                         dvb->fe[0]->ops.read_signal_strength =
1482                                         dvb->fe[0]->ops.tuner_ops.get_rf_strength;
1483
1484                         /* attach SEC */
1485                         if (!dvb_attach(a8293_attach, dvb->fe[0],
1486                                         &dev->i2c_adap[dev->def_i2c_bus],
1487                                         &em28xx_a8293_config)) {
1488                                 module_put(client->dev.driver->owner);
1489                                 i2c_unregister_device(client);
1490                                 dvb_frontend_detach(dvb->fe[0]);
1491                                 result = -ENODEV;
1492                                 goto out_free;
1493                         }
1494
1495                         dvb->i2c_client_tuner = client;
1496                 }
1497                 break;
1498         default:
1499                 em28xx_errdev("/2: The frontend of your DVB/ATSC card"
1500                                 " isn't supported yet\n");
1501                 break;
1502         }
1503         if (NULL == dvb->fe[0]) {
1504                 em28xx_errdev("/2: frontend initialization failed\n");
1505                 result = -EINVAL;
1506                 goto out_free;
1507         }
1508         /* define general-purpose callback pointer */
1509         dvb->fe[0]->callback = em28xx_tuner_callback;
1510         if (dvb->fe[1])
1511                 dvb->fe[1]->callback = em28xx_tuner_callback;
1512
1513         /* register everything */
1514         result = em28xx_register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
1515
1516         if (result < 0)
1517                 goto out_free;
1518
1519         /* MFE lock */
1520         dvb->adapter.mfe_shared = mfe_shared;
1521
1522         em28xx_info("DVB extension successfully initialized\n");
1523
1524         kref_get(&dev->ref);
1525
1526 ret:
1527         em28xx_set_mode(dev, EM28XX_SUSPEND);
1528         mutex_unlock(&dev->lock);
1529         return result;
1530
1531 out_free:
1532         kfree(dvb);
1533         dev->dvb = NULL;
1534         goto ret;
1535 }
1536
1537 static inline void prevent_sleep(struct dvb_frontend_ops *ops)
1538 {
1539         ops->set_voltage = NULL;
1540         ops->sleep = NULL;
1541         ops->tuner_ops.sleep = NULL;
1542 }
1543
1544 static int em28xx_dvb_fini(struct em28xx *dev)
1545 {
1546         struct em28xx_dvb *dvb;
1547         struct i2c_client *client;
1548
1549         if (dev->is_audio_only) {
1550                 /* Shouldn't initialize IR for this interface */
1551                 return 0;
1552         }
1553
1554         if (!dev->board.has_dvb) {
1555                 /* This device does not support the extension */
1556                 return 0;
1557         }
1558
1559         if (!dev->dvb)
1560                 return 0;
1561
1562         em28xx_info("Closing DVB extension");
1563
1564         dvb = dev->dvb;
1565         client = dvb->i2c_client_tuner;
1566
1567         em28xx_uninit_usb_xfer(dev, EM28XX_DIGITAL_MODE);
1568
1569         if (dev->disconnected) {
1570                 /* We cannot tell the device to sleep
1571                  * once it has been unplugged. */
1572                 if (dvb->fe[0])
1573                         prevent_sleep(&dvb->fe[0]->ops);
1574                 if (dvb->fe[1])
1575                         prevent_sleep(&dvb->fe[1]->ops);
1576         }
1577
1578         /* remove I2C tuner */
1579         if (client) {
1580                 module_put(client->dev.driver->owner);
1581                 i2c_unregister_device(client);
1582         }
1583
1584         em28xx_unregister_dvb(dvb);
1585         kfree(dvb);
1586         dev->dvb = NULL;
1587         kref_put(&dev->ref, em28xx_free_device);
1588
1589         return 0;
1590 }
1591
1592 static int em28xx_dvb_suspend(struct em28xx *dev)
1593 {
1594         int ret = 0;
1595
1596         if (dev->is_audio_only)
1597                 return 0;
1598
1599         if (!dev->board.has_dvb)
1600                 return 0;
1601
1602         em28xx_info("Suspending DVB extension");
1603         if (dev->dvb) {
1604                 struct em28xx_dvb *dvb = dev->dvb;
1605                 struct i2c_client *client = dvb->i2c_client_tuner;
1606
1607                 if (dvb->fe[0]) {
1608                         ret = dvb_frontend_suspend(dvb->fe[0]);
1609                         em28xx_info("fe0 suspend %d", ret);
1610                 }
1611                 if (dvb->fe[1]) {
1612                         dvb_frontend_suspend(dvb->fe[1]);
1613                         em28xx_info("fe1 suspend %d", ret);
1614                 }
1615         }
1616
1617         return 0;
1618 }
1619
1620 static int em28xx_dvb_resume(struct em28xx *dev)
1621 {
1622         int ret = 0;
1623
1624         if (dev->is_audio_only)
1625                 return 0;
1626
1627         if (!dev->board.has_dvb)
1628                 return 0;
1629
1630         em28xx_info("Resuming DVB extension");
1631         if (dev->dvb) {
1632                 struct em28xx_dvb *dvb = dev->dvb;
1633
1634                 if (dvb->fe[0]) {
1635                         ret = dvb_frontend_resume(dvb->fe[0]);
1636                         em28xx_info("fe0 resume %d", ret);
1637                 }
1638
1639                 if (dvb->fe[1]) {
1640                         ret = dvb_frontend_resume(dvb->fe[1]);
1641                         em28xx_info("fe1 resume %d", ret);
1642                 }
1643                 /* remove I2C tuner */
1644                 if (client) {
1645                         module_put(client->dev.driver->owner);
1646                         i2c_unregister_device(client);
1647                 }
1648
1649                 em28xx_unregister_dvb(dvb);
1650                 kfree(dvb);
1651                 dev->dvb = NULL;
1652         }
1653
1654         return 0;
1655 }
1656
1657 static struct em28xx_ops dvb_ops = {
1658         .id   = EM28XX_DVB,
1659         .name = "Em28xx dvb Extension",
1660         .init = em28xx_dvb_init,
1661         .fini = em28xx_dvb_fini,
1662         .suspend = em28xx_dvb_suspend,
1663         .resume = em28xx_dvb_resume,
1664 };
1665
1666 static int __init em28xx_dvb_register(void)
1667 {
1668         return em28xx_register_extension(&dvb_ops);
1669 }
1670
1671 static void __exit em28xx_dvb_unregister(void)
1672 {
1673         em28xx_unregister_extension(&dvb_ops);
1674 }
1675
1676 module_init(em28xx_dvb_register);
1677 module_exit(em28xx_dvb_unregister);