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_i2c_bus *i2c_bus = fe->dvb->priv;
 721         struct em28xx *dev = i2c_bus->dev;
 722 #ifdef CONFIG_GPIOLIB
 723         struct em28xx_dvb *dvb = dev->dvb;
 724         int ret;
 725         unsigned long flags;
 726
 727         if (c->lna == 1)
 728                 flags = GPIOF_OUT_INIT_HIGH; /* enable LNA */
 729         else
 730                 flags = GPIOF_OUT_INIT_LOW; /* disable LNA */
 731
 732         ret = gpio_request_one(dvb->lna_gpio, flags, NULL);
 733         if (ret)
 734                 em28xx_errdev("gpio request failed %d\n", ret);
 735         else
 736                 gpio_free(dvb->lna_gpio);
 737
 738         return ret;
 739 #else
 740         dev_warn(&dev->udev->dev, "%s: LNA control is disabled (lna=%u)\n",
 741                         KBUILD_MODNAME, c->lna);
 742         return 0;
 743 #endif
 744 }
 745
 746 static int em28xx_mt352_terratec_xs_init(struct dvb_frontend *fe)
 747 {
 748         /* Values extracted from a USB trace of the Terratec Windows driver */
 749         static u8 clock_config[]   = { CLOCK_CTL,  0x38, 0x2c };
 750         static u8 reset[]          = { RESET,      0x80 };
 751         static u8 adc_ctl_1_cfg[]  = { ADC_CTL_1,  0x40 };
 752         static u8 agc_cfg[]        = { AGC_TARGET, 0x28, 0xa0 };
 753         static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
 754         static u8 rs_err_cfg[]     = { RS_ERR_PER_1, 0x00, 0x4d };
 755         static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
 756         static u8 trl_nom_cfg[]    = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
 757         static u8 tps_given_cfg[]  = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
 758         static u8 tuner_go[]       = { TUNER_GO, 0x01};
 759
 760         mt352_write(fe, clock_config,   sizeof(clock_config));
 761         udelay(200);
 762         mt352_write(fe, reset,          sizeof(reset));
 763         mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));
 764         mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
 765         mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
 766         mt352_write(fe, rs_err_cfg,     sizeof(rs_err_cfg));
 767         mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
 768         mt352_write(fe, trl_nom_cfg,    sizeof(trl_nom_cfg));
 769         mt352_write(fe, tps_given_cfg,  sizeof(tps_given_cfg));
 770         mt352_write(fe, tuner_go,       sizeof(tuner_go));
 771         return 0;
 772 }
 773
 774 static struct mt352_config terratec_xs_mt352_cfg = {
 775         .demod_address = (0x1e >> 1),
 776         .no_tuner = 1,
 777         .if2 = 45600,
 778         .demod_init = em28xx_mt352_terratec_xs_init,
 779 };
 780
 781 static struct tda10023_config em28xx_tda10023_config = {
 782         .demod_address = 0x0c,
 783         .invert = 1,
 784 };
 785
 786 static struct cxd2820r_config em28xx_cxd2820r_config = {
 787         .i2c_address = (0xd8 >> 1),
 788         .ts_mode = CXD2820R_TS_SERIAL,
 789 };
 790
 791 static struct tda18271_config em28xx_cxd2820r_tda18271_config = {
 792         .output_opt = TDA18271_OUTPUT_LT_OFF,
 793         .gate = TDA18271_GATE_DIGITAL,
 794 };
 795
 796 static const struct tda10071_config em28xx_tda10071_config = {
 797         .demod_i2c_addr = 0x55, /* (0xaa >> 1) */
 798         .tuner_i2c_addr = 0x14,
 799         .i2c_wr_max = 64,
 800         .ts_mode = TDA10071_TS_SERIAL,
 801         .spec_inv = 0,
 802         .xtal = 40444000, /* 40.444 MHz */
 803         .pll_multiplier = 20,
 804 };
 805
 806 static const struct a8293_config em28xx_a8293_config = {
 807         .i2c_addr = 0x08, /* (0x10 >> 1) */
 808 };
 809
 810 static struct zl10353_config em28xx_zl10353_no_i2c_gate_dev = {
 811         .demod_address = (0x1e >> 1),
 812         .disable_i2c_gate_ctrl = 1,
 813         .no_tuner = 1,
 814         .parallel_ts = 1,
 815 };
 816 static struct qt1010_config em28xx_qt1010_config = {
 817         .i2c_address = 0x62
 818 };
 819
 820 static const struct mb86a20s_config c3tech_duo_mb86a20s_config = {
 821         .demod_address = 0x10,
 822         .is_serial = true,
 823 };
 824
 825 static struct tda18271_std_map mb86a20s_tda18271_config = {
 826         .dvbt_6   = { .if_freq = 4000, .agc_mode = 3, .std = 4,
 827                       .if_lvl = 1, .rfagc_top = 0x37, },
 828 };
 829
 830 static struct tda18271_config c3tech_duo_tda18271_config = {
 831         .std_map = &mb86a20s_tda18271_config,
 832         .gate    = TDA18271_GATE_DIGITAL,
 833         .small_i2c = TDA18271_03_BYTE_CHUNK_INIT,
 834 };
 835
 836 static const struct m88ds3103_config pctv_461e_m88ds3103_config = {
 837         .i2c_addr = 0x68,
 838         .clock = 27000000,
 839         .i2c_wr_max = 33,
 840         .clock_out = 0,
 841         .ts_mode = M88DS3103_TS_PARALLEL_16,
 842         .agc = 0x99,
 843 };
 844
 845
 846 static struct tda18271_std_map drx_j_std_map = {
 847         .atsc_6   = { .if_freq = 5000, .agc_mode = 3, .std = 0, .if_lvl = 1,
 848                       .rfagc_top = 0x37, },
 849         .qam_6    = { .if_freq = 5380, .agc_mode = 3, .std = 3, .if_lvl = 1,
 850                       .rfagc_top = 0x37, },
 851 };
 852
 853 static struct tda18271_config pinnacle_80e_dvb_config = {
 854         .std_map = &drx_j_std_map,
 855         .gate    = TDA18271_GATE_DIGITAL,
 856         .role    = TDA18271_MASTER,
 857 };
 858
 859 /* ------------------------------------------------------------------ */
 860
 861 static int em28xx_attach_xc3028(u8 addr, struct em28xx *dev)
 862 {
 863         struct dvb_frontend *fe;
 864         struct xc2028_config cfg;
 865         struct xc2028_ctrl ctl;
 866
 867         memset(&cfg, 0, sizeof(cfg));
 868         cfg.i2c_adap  = &dev->i2c_adap[dev->def_i2c_bus];
 869         cfg.i2c_addr  = addr;
 870
 871         memset(&ctl, 0, sizeof(ctl));
 872         em28xx_setup_xc3028(dev, &ctl);
 873         cfg.ctrl  = &ctl;
 874
 875         if (!dev->dvb->fe[0]) {
 876                 em28xx_errdev("/2: dvb frontend not attached. "
 877                                 "Can't attach xc3028\n");
 878                 return -EINVAL;
 879         }
 880
 881         fe = dvb_attach(xc2028_attach, dev->dvb->fe[0], &cfg);
 882         if (!fe) {
 883                 em28xx_errdev("/2: xc3028 attach failed\n");
 884                 dvb_frontend_detach(dev->dvb->fe[0]);
 885                 dev->dvb->fe[0] = NULL;
 886                 return -EINVAL;
 887         }
 888
 889         em28xx_info("%s/2: xc3028 attached\n", dev->name);
 890
 891         return 0;
 892 }
 893
 894 /* ------------------------------------------------------------------ */
 895
 896 static int em28xx_register_dvb(struct em28xx_dvb *dvb, struct module *module,
 897                                struct em28xx *dev, struct device *device)
 898 {
 899         int result;
 900
 901         mutex_init(&dvb->lock);
 902
 903         /* register adapter */
 904         result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
 905                                       adapter_nr);
 906         if (result < 0) {
 907                 printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
 908                        dev->name, result);
 909                 goto fail_adapter;
 910         }
 911
 912         /* Ensure all frontends negotiate bus access */
 913         dvb->fe[0]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 914         if (dvb->fe[1])
 915                 dvb->fe[1]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 916
 917         dvb->adapter.priv = &dev->i2c_bus[dev->def_i2c_bus];
 918
 919         /* register frontend */
 920         result = dvb_register_frontend(&dvb->adapter, dvb->fe[0]);
 921         if (result < 0) {
 922                 printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
 923                        dev->name, result);
 924                 goto fail_frontend0;
 925         }
 926
 927         /* register 2nd frontend */
 928         if (dvb->fe[1]) {
 929                 result = dvb_register_frontend(&dvb->adapter, dvb->fe[1]);
 930                 if (result < 0) {
 931                         printk(KERN_WARNING "%s: 2nd dvb_register_frontend failed (errno = %d)\n",
 932                                 dev->name, result);
 933                         goto fail_frontend1;
 934                 }
 935         }
 936
 937         /* register demux stuff */
 938         dvb->demux.dmx.capabilities =
 939                 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 940                 DMX_MEMORY_BASED_FILTERING;
 941         dvb->demux.priv       = dvb;
 942         dvb->demux.filternum  = 256;
 943         dvb->demux.feednum    = 256;
 944         dvb->demux.start_feed = em28xx_start_feed;
 945         dvb->demux.stop_feed  = em28xx_stop_feed;
 946
 947         result = dvb_dmx_init(&dvb->demux);
 948         if (result < 0) {
 949                 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
 950                        dev->name, result);
 951                 goto fail_dmx;
 952         }
 953
 954         dvb->dmxdev.filternum    = 256;
 955         dvb->dmxdev.demux        = &dvb->demux.dmx;
 956         dvb->dmxdev.capabilities = 0;
 957         result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
 958         if (result < 0) {
 959                 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
 960                        dev->name, result);
 961                 goto fail_dmxdev;
 962         }
 963
 964         dvb->fe_hw.source = DMX_FRONTEND_0;
 965         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 966         if (result < 0) {
 967                 printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
 968                        dev->name, result);
 969                 goto fail_fe_hw;
 970         }
 971
 972         dvb->fe_mem.source = DMX_MEMORY_FE;
 973         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 974         if (result < 0) {
 975                 printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
 976                        dev->name, result);
 977                 goto fail_fe_mem;
 978         }
 979
 980         result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 981         if (result < 0) {
 982                 printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
 983                        dev->name, result);
 984                 goto fail_fe_conn;
 985         }
 986
 987         /* register network adapter */
 988         dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
 989         return 0;
 990
 991 fail_fe_conn:
 992         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 993 fail_fe_mem:
 994         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 995 fail_fe_hw:
 996         dvb_dmxdev_release(&dvb->dmxdev);
 997 fail_dmxdev:
 998         dvb_dmx_release(&dvb->demux);
 999 fail_dmx:
1000         if (dvb->fe[1])
1001                 dvb_unregister_frontend(dvb->fe[1]);
1002         dvb_unregister_frontend(dvb->fe[0]);
1003 fail_frontend1:
1004         if (dvb->fe[1])
1005                 dvb_frontend_detach(dvb->fe[1]);
1006 fail_frontend0:
1007         dvb_frontend_detach(dvb->fe[0]);
1008         dvb_unregister_adapter(&dvb->adapter);
1009 fail_adapter:
1010         return result;
1011 }
1012
1013 static void em28xx_unregister_dvb(struct em28xx_dvb *dvb)
1014 {
1015         dvb_net_release(&dvb->net);
1016         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
1017         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
1018         dvb_dmxdev_release(&dvb->dmxdev);
1019         dvb_dmx_release(&dvb->demux);
1020         if (dvb->fe[1])
1021                 dvb_unregister_frontend(dvb->fe[1]);
1022         dvb_unregister_frontend(dvb->fe[0]);
1023         if (dvb->fe[1] && !dvb->dont_attach_fe1)
1024                 dvb_frontend_detach(dvb->fe[1]);
1025         dvb_frontend_detach(dvb->fe[0]);
1026         dvb_unregister_adapter(&dvb->adapter);
1027 }
1028
1029 static int em28xx_dvb_init(struct em28xx *dev)
1030 {
1031         int result = 0, mfe_shared = 0;
1032         struct em28xx_dvb *dvb;
1033
1034         if (dev->is_audio_only) {
1035                 /* Shouldn't initialize IR for this interface */
1036                 return 0;
1037         }
1038
1039         if (!dev->board.has_dvb) {
1040                 /* This device does not support the extension */
1041                 return 0;
1042         }
1043
1044         em28xx_info("Binding DVB extension\n");
1045
1046         dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
1047         if (dvb == NULL) {
1048                 em28xx_info("em28xx_dvb: memory allocation failed\n");
1049                 return -ENOMEM;
1050         }
1051         dev->dvb = dvb;
1052         dvb->fe[0] = dvb->fe[1] = NULL;
1053
1054         /* pre-allocate DVB usb transfer buffers */
1055         if (dev->dvb_xfer_bulk) {
1056                 result = em28xx_alloc_urbs(dev, EM28XX_DIGITAL_MODE,
1057                                            dev->dvb_xfer_bulk,
1058                                            EM28XX_DVB_NUM_BUFS,
1059                                            512,
1060                                            EM28XX_DVB_BULK_PACKET_MULTIPLIER);
1061         } else {
1062                 result = em28xx_alloc_urbs(dev, EM28XX_DIGITAL_MODE,
1063                                            dev->dvb_xfer_bulk,
1064                                            EM28XX_DVB_NUM_BUFS,
1065                                            dev->dvb_max_pkt_size_isoc,
1066                                            EM28XX_DVB_NUM_ISOC_PACKETS);
1067         }
1068         if (result) {
1069                 em28xx_errdev("em28xx_dvb: failed to pre-allocate USB transfer buffers for DVB.\n");
1070                 kfree(dvb);
1071                 dev->dvb = NULL;
1072                 return result;
1073         }
1074
1075         mutex_lock(&dev->lock);
1076         em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
1077         /* init frontend */
1078         switch (dev->model) {
1079         case EM2874_BOARD_LEADERSHIP_ISDBT:
1080                 dvb->fe[0] = dvb_attach(s921_attach,
1081                                 &sharp_isdbt, &dev->i2c_adap[dev->def_i2c_bus]);
1082
1083                 if (!dvb->fe[0]) {
1084                         result = -EINVAL;
1085                         goto out_free;
1086                 }
1087
1088                 break;
1089         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
1090         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
1091         case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
1092         case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
1093                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
1094                                            &em2880_lgdt3303_dev,
1095                                            &dev->i2c_adap[dev->def_i2c_bus]);
1096                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1097                         result = -EINVAL;
1098                         goto out_free;
1099                 }
1100                 break;
1101         case EM2880_BOARD_KWORLD_DVB_310U:
1102                 dvb->fe[0] = dvb_attach(zl10353_attach,
1103                                            &em28xx_zl10353_with_xc3028,
1104                                            &dev->i2c_adap[dev->def_i2c_bus]);
1105                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1106                         result = -EINVAL;
1107                         goto out_free;
1108                 }
1109                 break;
1110         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
1111         case EM2882_BOARD_TERRATEC_HYBRID_XS:
1112         case EM2880_BOARD_EMPIRE_DUAL_TV:
1113                 dvb->fe[0] = dvb_attach(zl10353_attach,
1114                                            &em28xx_zl10353_xc3028_no_i2c_gate,
1115                                            &dev->i2c_adap[dev->def_i2c_bus]);
1116                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1117                         result = -EINVAL;
1118                         goto out_free;
1119                 }
1120                 break;
1121         case EM2880_BOARD_TERRATEC_HYBRID_XS:
1122         case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
1123         case EM2881_BOARD_PINNACLE_HYBRID_PRO:
1124         case EM2882_BOARD_DIKOM_DK300:
1125         case EM2882_BOARD_KWORLD_VS_DVBT:
1126                 dvb->fe[0] = dvb_attach(zl10353_attach,
1127                                            &em28xx_zl10353_xc3028_no_i2c_gate,
1128                                            &dev->i2c_adap[dev->def_i2c_bus]);
1129                 if (dvb->fe[0] == NULL) {
1130                         /* This board could have either a zl10353 or a mt352.
1131                            If the chip id isn't for zl10353, try mt352 */
1132                         dvb->fe[0] = dvb_attach(mt352_attach,
1133                                                    &terratec_xs_mt352_cfg,
1134                                                    &dev->i2c_adap[dev->def_i2c_bus]);
1135                 }
1136
1137                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1138                         result = -EINVAL;
1139                         goto out_free;
1140                 }
1141                 break;
1142         case EM2870_BOARD_KWORLD_355U:
1143                 dvb->fe[0] = dvb_attach(zl10353_attach,
1144                                            &em28xx_zl10353_no_i2c_gate_dev,
1145                                            &dev->i2c_adap[dev->def_i2c_bus]);
1146                 if (dvb->fe[0] != NULL)
1147                         dvb_attach(qt1010_attach, dvb->fe[0],
1148                                    &dev->i2c_adap[dev->def_i2c_bus], &em28xx_qt1010_config);
1149                 break;
1150         case EM2883_BOARD_KWORLD_HYBRID_330U:
1151         case EM2882_BOARD_EVGA_INDTUBE:
1152                 dvb->fe[0] = dvb_attach(s5h1409_attach,
1153                                            &em28xx_s5h1409_with_xc3028,
1154                                            &dev->i2c_adap[dev->def_i2c_bus]);
1155                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1156                         result = -EINVAL;
1157                         goto out_free;
1158                 }
1159                 break;
1160         case EM2882_BOARD_KWORLD_ATSC_315U:
1161                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
1162                                            &em2880_lgdt3303_dev,
1163                                            &dev->i2c_adap[dev->def_i2c_bus]);
1164                 if (dvb->fe[0] != NULL) {
1165                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1166                                 &dev->i2c_adap[dev->def_i2c_bus], 0x61, TUNER_THOMSON_DTT761X)) {
1167                                 result = -EINVAL;
1168                                 goto out_free;
1169                         }
1170                 }
1171                 break;
1172         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
1173         case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
1174                 dvb->fe[0] = dvb_attach(drxd_attach, &em28xx_drxd, NULL,
1175                                            &dev->i2c_adap[dev->def_i2c_bus], &dev->udev->dev);
1176                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1177                         result = -EINVAL;
1178                         goto out_free;
1179                 }
1180                 break;
1181         case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
1182                 /* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
1183                 dvb->fe[0] = dvb_attach(tda10023_attach,
1184                         &em28xx_tda10023_config,
1185                         &dev->i2c_adap[dev->def_i2c_bus], 0x48);
1186                 if (dvb->fe[0]) {
1187                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1188                                 &dev->i2c_adap[dev->def_i2c_bus], 0x60, TUNER_PHILIPS_CU1216L)) {
1189                                 result = -EINVAL;
1190                                 goto out_free;
1191                         }
1192                 }
1193                 break;
1194         case EM2870_BOARD_KWORLD_A340:
1195                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1196                                            &em2870_lgdt3304_dev,
1197                                            &dev->i2c_adap[dev->def_i2c_bus]);
1198                 if (dvb->fe[0] != NULL)
1199                         dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1200                                    &dev->i2c_adap[dev->def_i2c_bus], &kworld_a340_config);
1201                 break;
1202         case EM28174_BOARD_PCTV_290E:
1203                 /* set default GPIO0 for LNA, used if GPIOLIB is undefined */
1204                 dvb->lna_gpio = CXD2820R_GPIO_E | CXD2820R_GPIO_O |
1205                                 CXD2820R_GPIO_L;
1206                 dvb->fe[0] = dvb_attach(cxd2820r_attach,
1207                                         &em28xx_cxd2820r_config,
1208                                         &dev->i2c_adap[dev->def_i2c_bus],
1209                                         &dvb->lna_gpio);
1210                 if (dvb->fe[0]) {
1211                         /* FE 0 attach tuner */
1212                         if (!dvb_attach(tda18271_attach,
1213                                         dvb->fe[0],
1214                                         0x60,
1215                                         &dev->i2c_adap[dev->def_i2c_bus],
1216                                         &em28xx_cxd2820r_tda18271_config)) {
1217
1218                                 dvb_frontend_detach(dvb->fe[0]);
1219                                 result = -EINVAL;
1220                                 goto out_free;
1221                         }
1222
1223 #ifdef CONFIG_GPIOLIB
1224                         /* enable LNA for DVB-T, DVB-T2 and DVB-C */
1225                         result = gpio_request_one(dvb->lna_gpio,
1226                                         GPIOF_OUT_INIT_LOW, NULL);
1227                         if (result)
1228                                 em28xx_errdev("gpio request failed %d\n",
1229                                                 result);
1230                         else
1231                                 gpio_free(dvb->lna_gpio);
1232
1233                         result = 0; /* continue even set LNA fails */
1234 #endif
1235                         dvb->fe[0]->ops.set_lna = em28xx_pctv_290e_set_lna;
1236                 }
1237
1238                 break;
1239         case EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C:
1240         {
1241                 struct xc5000_config cfg;
1242                 hauppauge_hvr930c_init(dev);
1243
1244                 dvb->fe[0] = dvb_attach(drxk_attach,
1245                                         &hauppauge_930c_drxk, &dev->i2c_adap[dev->def_i2c_bus]);
1246                 if (!dvb->fe[0]) {
1247                         result = -EINVAL;
1248                         goto out_free;
1249                 }
1250                 /* FIXME: do we need a pll semaphore? */
1251                 dvb->fe[0]->sec_priv = dvb;
1252                 sema_init(&dvb->pll_mutex, 1);
1253                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1254                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1255
1256                 /* Attach xc5000 */
1257                 memset(&cfg, 0, sizeof(cfg));
1258                 cfg.i2c_address  = 0x61;
1259                 cfg.if_khz = 4000;
1260
1261                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1262                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1263                 if (!dvb_attach(xc5000_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus],
1264                                 &cfg)) {
1265                         result = -EINVAL;
1266                         goto out_free;
1267                 }
1268                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1269                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1270
1271                 break;
1272         }
1273         case EM2884_BOARD_TERRATEC_H5:
1274                 terratec_h5_init(dev);
1275
1276                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_h5_drxk, &dev->i2c_adap[dev->def_i2c_bus]);
1277                 if (!dvb->fe[0]) {
1278                         result = -EINVAL;
1279                         goto out_free;
1280                 }
1281                 /* FIXME: do we need a pll semaphore? */
1282                 dvb->fe[0]->sec_priv = dvb;
1283                 sema_init(&dvb->pll_mutex, 1);
1284                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1285                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1286
1287                 /* Attach tda18271 to DVB-C frontend */
1288                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1289                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1290                 if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus], 0x60)) {
1291                         result = -EINVAL;
1292                         goto out_free;
1293                 }
1294                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1295                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1296
1297                 break;
1298         case EM2884_BOARD_C3TECH_DIGITAL_DUO:
1299                 dvb->fe[0] = dvb_attach(mb86a20s_attach,
1300                                            &c3tech_duo_mb86a20s_config,
1301                                            &dev->i2c_adap[dev->def_i2c_bus]);
1302                 if (dvb->fe[0] != NULL)
1303                         dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1304                                    &dev->i2c_adap[dev->def_i2c_bus],
1305                                    &c3tech_duo_tda18271_config);
1306                 break;
1307         case EM28174_BOARD_PCTV_460E:
1308                 /* attach demod */
1309                 dvb->fe[0] = dvb_attach(tda10071_attach,
1310                         &em28xx_tda10071_config, &dev->i2c_adap[dev->def_i2c_bus]);
1311
1312                 /* attach SEC */
1313                 if (dvb->fe[0])
1314                         dvb_attach(a8293_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus],
1315                                 &em28xx_a8293_config);
1316                 break;
1317         case EM2874_BOARD_DELOCK_61959:
1318         case EM2874_BOARD_MAXMEDIA_UB425_TC:
1319                 /* attach demodulator */
1320                 dvb->fe[0] = dvb_attach(drxk_attach, &maxmedia_ub425_tc_drxk,
1321                                 &dev->i2c_adap[dev->def_i2c_bus]);
1322
1323                 if (dvb->fe[0]) {
1324                         /* disable I2C-gate */
1325                         dvb->fe[0]->ops.i2c_gate_ctrl = NULL;
1326
1327                         /* attach tuner */
1328                         if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1329                                         &dev->i2c_adap[dev->def_i2c_bus],
1330                                         &em28xx_cxd2820r_tda18271_config)) {
1331                                 dvb_frontend_detach(dvb->fe[0]);
1332                                 result = -EINVAL;
1333                                 goto out_free;
1334                         }
1335                 }
1336                 break;
1337         case EM2884_BOARD_PCTV_510E:
1338         case EM2884_BOARD_PCTV_520E:
1339                 pctv_520e_init(dev);
1340
1341                 /* attach demodulator */
1342                 dvb->fe[0] = dvb_attach(drxk_attach, &pctv_520e_drxk,
1343                                 &dev->i2c_adap[dev->def_i2c_bus]);
1344
1345                 if (dvb->fe[0]) {
1346                         /* attach tuner */
1347                         if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1348                                         &dev->i2c_adap[dev->def_i2c_bus],
1349                                         &em28xx_cxd2820r_tda18271_config)) {
1350                                 dvb_frontend_detach(dvb->fe[0]);
1351                                 result = -EINVAL;
1352                                 goto out_free;
1353                         }
1354                 }
1355                 break;
1356         case EM2884_BOARD_CINERGY_HTC_STICK:
1357                 terratec_htc_stick_init(dev);
1358
1359                 /* attach demodulator */
1360                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1361                                         &dev->i2c_adap[dev->def_i2c_bus]);
1362                 if (!dvb->fe[0]) {
1363                         result = -EINVAL;
1364                         goto out_free;
1365                 }
1366
1367                 /* Attach the demodulator. */
1368                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1369                                 &dev->i2c_adap[dev->def_i2c_bus],
1370                                 &em28xx_cxd2820r_tda18271_config)) {
1371                         result = -EINVAL;
1372                         goto out_free;
1373                 }
1374                 break;
1375         case EM2884_BOARD_TERRATEC_HTC_USB_XS:
1376                 terratec_htc_usb_xs_init(dev);
1377
1378                 /* attach demodulator */
1379                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1380                                         &dev->i2c_adap[dev->def_i2c_bus]);
1381                 if (!dvb->fe[0]) {
1382                         result = -EINVAL;
1383                         goto out_free;
1384                 }
1385
1386                 /* Attach the demodulator. */
1387                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1388                                 &dev->i2c_adap[dev->def_i2c_bus],
1389                                 &em28xx_cxd2820r_tda18271_config)) {
1390                         result = -EINVAL;
1391                         goto out_free;
1392                 }
1393                 break;
1394         case EM2874_BOARD_KWORLD_UB435Q_V2:
1395                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1396                                         &em2874_lgdt3305_dev,
1397                                         &dev->i2c_adap[dev->def_i2c_bus]);
1398                 if (!dvb->fe[0]) {
1399                         result = -EINVAL;
1400                         goto out_free;
1401                 }
1402
1403                 /* Attach the demodulator. */
1404                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1405                                 &dev->i2c_adap[dev->def_i2c_bus],
1406                                 &kworld_ub435q_v2_config)) {
1407                         result = -EINVAL;
1408                         goto out_free;
1409                 }
1410                 break;
1411         case EM2874_BOARD_KWORLD_UB435Q_V3:
1412                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1413                                         &em2874_lgdt3305_nogate_dev,
1414                                         &dev->i2c_adap[dev->def_i2c_bus]);
1415                 if (!dvb->fe[0]) {
1416                         result = -EINVAL;
1417                         goto out_free;
1418                 }
1419
1420                 /* Attach the demodulator. */
1421                 if (!dvb_attach(tda18212_attach, dvb->fe[0],
1422                                 &dev->i2c_adap[dev->def_i2c_bus],
1423                                 &kworld_ub435q_v3_config)) {
1424                         result = -EINVAL;
1425                         goto out_free;
1426                 }
1427                 break;
1428         case EM2874_BOARD_PCTV_HD_MINI_80E:
1429                 dvb->fe[0] = dvb_attach(drx39xxj_attach, &dev->i2c_adap[dev->def_i2c_bus]);
1430                 if (dvb->fe[0] != NULL) {
1431                         dvb->fe[0] = dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1432                                                 &dev->i2c_adap[dev->def_i2c_bus],
1433                                                 &pinnacle_80e_dvb_config);
1434                         if (!dvb->fe[0]) {
1435                                 result = -EINVAL;
1436                                 goto out_free;
1437                         }
1438                 }
1439                 break;
1440         case EM28178_BOARD_PCTV_461E:
1441                 {
1442                         /* demod I2C adapter */
1443                         struct i2c_adapter *i2c_adapter;
1444                         struct i2c_client *client;
1445                         struct i2c_board_info info;
1446                         struct m88ts2022_config m88ts2022_config = {
1447                                 .clock = 27000000,
1448                         };
1449                         memset(&info, 0, sizeof(struct i2c_board_info));
1450
1451                         /* attach demod */
1452                         dvb->fe[0] = dvb_attach(m88ds3103_attach,
1453                                         &pctv_461e_m88ds3103_config,
1454                                         &dev->i2c_adap[dev->def_i2c_bus],
1455                                         &i2c_adapter);
1456                         if (dvb->fe[0] == NULL) {
1457                                 result = -ENODEV;
1458                                 goto out_free;
1459                         }
1460
1461                         /* attach tuner */
1462                         m88ts2022_config.fe = dvb->fe[0];
1463                         strlcpy(info.type, "m88ts2022", I2C_NAME_SIZE);
1464                         info.addr = 0x60;
1465                         info.platform_data = &m88ts2022_config;
1466                         request_module("m88ts2022");
1467                         client = i2c_new_device(i2c_adapter, &info);
1468                         if (client == NULL || client->dev.driver == NULL) {
1469                                 dvb_frontend_detach(dvb->fe[0]);
1470                                 result = -ENODEV;
1471                                 goto out_free;
1472                         }
1473
1474                         if (!try_module_get(client->dev.driver->owner)) {
1475                                 i2c_unregister_device(client);
1476                                 dvb_frontend_detach(dvb->fe[0]);
1477                                 result = -ENODEV;
1478                                 goto out_free;
1479                         }
1480
1481                         /* delegate signal strength measurement to tuner */
1482                         dvb->fe[0]->ops.read_signal_strength =
1483                                         dvb->fe[0]->ops.tuner_ops.get_rf_strength;
1484
1485                         /* attach SEC */
1486                         if (!dvb_attach(a8293_attach, dvb->fe[0],
1487                                         &dev->i2c_adap[dev->def_i2c_bus],
1488                                         &em28xx_a8293_config)) {
1489                                 module_put(client->dev.driver->owner);
1490                                 i2c_unregister_device(client);
1491                                 dvb_frontend_detach(dvb->fe[0]);
1492                                 result = -ENODEV;
1493                                 goto out_free;
1494                         }
1495
1496                         dvb->i2c_client_tuner = client;
1497                 }
1498                 break;
1499         default:
1500                 em28xx_errdev("/2: The frontend of your DVB/ATSC card"
1501                                 " isn't supported yet\n");
1502                 break;
1503         }
1504         if (NULL == dvb->fe[0]) {
1505                 em28xx_errdev("/2: frontend initialization failed\n");
1506                 result = -EINVAL;
1507                 goto out_free;
1508         }
1509         /* define general-purpose callback pointer */
1510         dvb->fe[0]->callback = em28xx_tuner_callback;
1511         if (dvb->fe[1])
1512                 dvb->fe[1]->callback = em28xx_tuner_callback;
1513
1514         /* register everything */
1515         result = em28xx_register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
1516
1517         if (result < 0)
1518                 goto out_free;
1519
1520         /* MFE lock */
1521         dvb->adapter.mfe_shared = mfe_shared;
1522
1523         em28xx_info("DVB extension successfully initialized\n");
1524
1525         kref_get(&dev->ref);
1526
1527 ret:
1528         em28xx_set_mode(dev, EM28XX_SUSPEND);
1529         mutex_unlock(&dev->lock);
1530         return result;
1531
1532 out_free:
1533         kfree(dvb);
1534         dev->dvb = NULL;
1535         goto ret;
1536 }
1537
1538 static inline void prevent_sleep(struct dvb_frontend_ops *ops)
1539 {
1540         ops->set_voltage = NULL;
1541         ops->sleep = NULL;
1542         ops->tuner_ops.sleep = NULL;
1543 }
1544
1545 static int em28xx_dvb_fini(struct em28xx *dev)
1546 {
1547         struct em28xx_dvb *dvb;
1548         struct i2c_client *client;
1549
1550         if (dev->is_audio_only) {
1551                 /* Shouldn't initialize IR for this interface */
1552                 return 0;
1553         }
1554
1555         if (!dev->board.has_dvb) {
1556                 /* This device does not support the extension */
1557                 return 0;
1558         }
1559
1560         if (!dev->dvb)
1561                 return 0;
1562
1563         em28xx_info("Closing DVB extension");
1564
1565         dvb = dev->dvb;
1566         client = dvb->i2c_client_tuner;
1567
1568         em28xx_uninit_usb_xfer(dev, EM28XX_DIGITAL_MODE);
1569
1570         if (dev->disconnected) {
1571                 /* We cannot tell the device to sleep
1572                  * once it has been unplugged. */
1573                 if (dvb->fe[0])
1574                         prevent_sleep(&dvb->fe[0]->ops);
1575                 if (dvb->fe[1])
1576                         prevent_sleep(&dvb->fe[1]->ops);
1577         }
1578
1579         /* remove I2C tuner */
1580         if (client) {
1581                 module_put(client->dev.driver->owner);
1582                 i2c_unregister_device(client);
1583         }
1584
1585         em28xx_unregister_dvb(dvb);
1586         kfree(dvb);
1587         dev->dvb = NULL;
1588         kref_put(&dev->ref, em28xx_free_device);
1589
1590         return 0;
1591 }
1592
1593 static int em28xx_dvb_suspend(struct em28xx *dev)
1594 {
1595         int ret = 0;
1596
1597         if (dev->is_audio_only)
1598                 return 0;
1599
1600         if (!dev->board.has_dvb)
1601                 return 0;
1602
1603         em28xx_info("Suspending DVB extension");
1604         if (dev->dvb) {
1605                 struct em28xx_dvb *dvb = dev->dvb;
1606                 struct i2c_client *client = dvb->i2c_client_tuner;
1607
1608                 if (dvb->fe[0]) {
1609                         ret = dvb_frontend_suspend(dvb->fe[0]);
1610                         em28xx_info("fe0 suspend %d", ret);
1611                 }
1612                 if (dvb->fe[1]) {
1613                         dvb_frontend_suspend(dvb->fe[1]);
1614                         em28xx_info("fe1 suspend %d", ret);
1615                 }
1616         }
1617
1618         return 0;
1619 }
1620
1621 static int em28xx_dvb_resume(struct em28xx *dev)
1622 {
1623         int ret = 0;
1624
1625         if (dev->is_audio_only)
1626                 return 0;
1627
1628         if (!dev->board.has_dvb)
1629                 return 0;
1630
1631         em28xx_info("Resuming DVB extension");
1632         if (dev->dvb) {
1633                 struct em28xx_dvb *dvb = dev->dvb;
1634
1635                 if (dvb->fe[0]) {
1636                         ret = dvb_frontend_resume(dvb->fe[0]);
1637                         em28xx_info("fe0 resume %d", ret);
1638                 }
1639
1640                 if (dvb->fe[1]) {
1641                         ret = dvb_frontend_resume(dvb->fe[1]);
1642                         em28xx_info("fe1 resume %d", ret);
1643                 }
1644                 /* remove I2C tuner */
1645                 if (client) {
1646                         module_put(client->dev.driver->owner);
1647                         i2c_unregister_device(client);
1648                 }
1649
1650                 em28xx_unregister_dvb(dvb);
1651                 kfree(dvb);
1652                 dev->dvb = NULL;
1653         }
1654
1655         return 0;
1656 }
1657
1658 static struct em28xx_ops dvb_ops = {
1659         .id   = EM28XX_DVB,
1660         .name = "Em28xx dvb Extension",
1661         .init = em28xx_dvb_init,
1662         .fini = em28xx_dvb_fini,
1663         .suspend = em28xx_dvb_suspend,
1664         .resume = em28xx_dvb_resume,
1665 };
1666
1667 static int __init em28xx_dvb_register(void)
1668 {
1669         return em28xx_register_extension(&dvb_ops);
1670 }
1671
1672 static void __exit em28xx_dvb_unregister(void)
1673 {
1674         em28xx_unregister_extension(&dvb_ops);
1675 }
1676
1677 module_init(em28xx_dvb_register);
1678 module_exit(em28xx_dvb_unregister);