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 #include "si2168.h"
  59 #include "si2157.h"
  60
  61 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
  62 MODULE_LICENSE("GPL");
  63 MODULE_DESCRIPTION(DRIVER_DESC " - digital TV interface");
  64 MODULE_VERSION(EM28XX_VERSION);
  65
  66
  67 static unsigned int debug;
  68 module_param(debug, int, 0644);
  69 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
  70
  71 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  72
  73 #define dprintk(level, fmt, arg...) do {                        \
  74 if (debug >= level)                                             \
  75         printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
  76 } while (0)
  77
  78 struct em28xx_dvb {
  79         struct dvb_frontend        *fe[2];
  80
  81         /* feed count management */
  82         struct mutex               lock;
  83         int                        nfeeds;
  84
  85         /* general boilerplate stuff */
  86         struct dvb_adapter         adapter;
  87         struct dvb_demux           demux;
  88         struct dmxdev              dmxdev;
  89         struct dmx_frontend        fe_hw;
  90         struct dmx_frontend        fe_mem;
  91         struct dvb_net             net;
  92
  93         /* Due to DRX-K - probably need changes */
  94         int (*gate_ctrl)(struct dvb_frontend *, int);
  95         struct semaphore      pll_mutex;
  96         bool                    dont_attach_fe1;
  97         int                     lna_gpio;
  98         struct i2c_client       *i2c_client_demod;
  99         struct i2c_client       *i2c_client_tuner;
 100 };
 101
 102
 103 static inline void print_err_status(struct em28xx *dev,
 104                                      int packet, int status)
 105 {
 106         char *errmsg = "Unknown";
 107
 108         switch (status) {
 109         case -ENOENT:
 110                 errmsg = "unlinked synchronuously";
 111                 break;
 112         case -ECONNRESET:
 113                 errmsg = "unlinked asynchronuously";
 114                 break;
 115         case -ENOSR:
 116                 errmsg = "Buffer error (overrun)";
 117                 break;
 118         case -EPIPE:
 119                 errmsg = "Stalled (device not responding)";
 120                 break;
 121         case -EOVERFLOW:
 122                 errmsg = "Babble (bad cable?)";
 123                 break;
 124         case -EPROTO:
 125                 errmsg = "Bit-stuff error (bad cable?)";
 126                 break;
 127         case -EILSEQ:
 128                 errmsg = "CRC/Timeout (could be anything)";
 129                 break;
 130         case -ETIME:
 131                 errmsg = "Device does not respond";
 132                 break;
 133         }
 134         if (packet < 0) {
 135                 dprintk(1, "URB status %d [%s].\n", status, errmsg);
 136         } else {
 137                 dprintk(1, "URB packet %d, status %d [%s].\n",
 138                         packet, status, errmsg);
 139         }
 140 }
 141
 142 static inline int em28xx_dvb_urb_data_copy(struct em28xx *dev, struct urb *urb)
 143 {
 144         int xfer_bulk, num_packets, i;
 145
 146         if (!dev)
 147                 return 0;
 148
 149         if (dev->disconnected)
 150                 return 0;
 151
 152         if (urb->status < 0)
 153                 print_err_status(dev, -1, urb->status);
 154
 155         xfer_bulk = usb_pipebulk(urb->pipe);
 156
 157         if (xfer_bulk) /* bulk */
 158                 num_packets = 1;
 159         else /* isoc */
 160                 num_packets = urb->number_of_packets;
 161
 162         for (i = 0; i < num_packets; i++) {
 163                 if (xfer_bulk) {
 164                         if (urb->status < 0) {
 165                                 print_err_status(dev, i, urb->status);
 166                                 if (urb->status != -EPROTO)
 167                                         continue;
 168                         }
 169                         if (!urb->actual_length)
 170                                 continue;
 171                         dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer,
 172                                         urb->actual_length);
 173                 } else {
 174                         if (urb->iso_frame_desc[i].status < 0) {
 175                                 print_err_status(dev, i,
 176                                                  urb->iso_frame_desc[i].status);
 177                                 if (urb->iso_frame_desc[i].status != -EPROTO)
 178                                         continue;
 179                         }
 180                         if (!urb->iso_frame_desc[i].actual_length)
 181                                 continue;
 182                         dvb_dmx_swfilter(&dev->dvb->demux,
 183                                          urb->transfer_buffer +
 184                                          urb->iso_frame_desc[i].offset,
 185                                          urb->iso_frame_desc[i].actual_length);
 186                 }
 187         }
 188
 189         return 0;
 190 }
 191
 192 static int em28xx_start_streaming(struct em28xx_dvb *dvb)
 193 {
 194         int rc;
 195         struct em28xx_i2c_bus *i2c_bus = dvb->adapter.priv;
 196         struct em28xx *dev = i2c_bus->dev;
 197         int dvb_max_packet_size, packet_multiplier, dvb_alt;
 198
 199         if (dev->dvb_xfer_bulk) {
 200                 if (!dev->dvb_ep_bulk)
 201                         return -ENODEV;
 202                 dvb_max_packet_size = 512; /* USB 2.0 spec */
 203                 packet_multiplier = EM28XX_DVB_BULK_PACKET_MULTIPLIER;
 204                 dvb_alt = 0;
 205         } else { /* isoc */
 206                 if (!dev->dvb_ep_isoc)
 207                         return -ENODEV;
 208                 dvb_max_packet_size = dev->dvb_max_pkt_size_isoc;
 209                 if (dvb_max_packet_size < 0)
 210                         return dvb_max_packet_size;
 211                 packet_multiplier = EM28XX_DVB_NUM_ISOC_PACKETS;
 212                 dvb_alt = dev->dvb_alt_isoc;
 213         }
 214
 215         usb_set_interface(dev->udev, dev->ifnum, dvb_alt);
 216         rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 217         if (rc < 0)
 218                 return rc;
 219
 220         dprintk(1, "Using %d buffers each with %d x %d bytes, alternate %d\n",
 221                 EM28XX_DVB_NUM_BUFS,
 222                 packet_multiplier,
 223                 dvb_max_packet_size, dvb_alt);
 224
 225         return em28xx_init_usb_xfer(dev, EM28XX_DIGITAL_MODE,
 226                                     dev->dvb_xfer_bulk,
 227                                     EM28XX_DVB_NUM_BUFS,
 228                                     dvb_max_packet_size,
 229                                     packet_multiplier,
 230                                     em28xx_dvb_urb_data_copy);
 231 }
 232
 233 static int em28xx_stop_streaming(struct em28xx_dvb *dvb)
 234 {
 235         struct em28xx_i2c_bus *i2c_bus = dvb->adapter.priv;
 236         struct em28xx *dev = i2c_bus->dev;
 237
 238         em28xx_stop_urbs(dev);
 239
 240         return 0;
 241 }
 242
 243 static int em28xx_start_feed(struct dvb_demux_feed *feed)
 244 {
 245         struct dvb_demux *demux  = feed->demux;
 246         struct em28xx_dvb *dvb = demux->priv;
 247         int rc, ret;
 248
 249         if (!demux->dmx.frontend)
 250                 return -EINVAL;
 251
 252         mutex_lock(&dvb->lock);
 253         dvb->nfeeds++;
 254         rc = dvb->nfeeds;
 255
 256         if (dvb->nfeeds == 1) {
 257                 ret = em28xx_start_streaming(dvb);
 258                 if (ret < 0)
 259                         rc = ret;
 260         }
 261
 262         mutex_unlock(&dvb->lock);
 263         return rc;
 264 }
 265
 266 static int em28xx_stop_feed(struct dvb_demux_feed *feed)
 267 {
 268         struct dvb_demux *demux  = feed->demux;
 269         struct em28xx_dvb *dvb = demux->priv;
 270         int err = 0;
 271
 272         mutex_lock(&dvb->lock);
 273         dvb->nfeeds--;
 274
 275         if (0 == dvb->nfeeds)
 276                 err = em28xx_stop_streaming(dvb);
 277
 278         mutex_unlock(&dvb->lock);
 279         return err;
 280 }
 281
 282
 283
 284 /* ------------------------------------------------------------------ */
 285 static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
 286 {
 287         struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
 288         struct em28xx *dev = i2c_bus->dev;
 289
 290         if (acquire)
 291                 return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 292         else
 293                 return em28xx_set_mode(dev, EM28XX_SUSPEND);
 294 }
 295
 296 /* ------------------------------------------------------------------ */
 297
 298 static struct lgdt330x_config em2880_lgdt3303_dev = {
 299         .demod_address = 0x0e,
 300         .demod_chip = LGDT3303,
 301 };
 302
 303 static struct lgdt3305_config em2870_lgdt3304_dev = {
 304         .i2c_addr           = 0x0e,
 305         .demod_chip         = LGDT3304,
 306         .spectral_inversion = 1,
 307         .deny_i2c_rptr      = 1,
 308         .mpeg_mode          = LGDT3305_MPEG_PARALLEL,
 309         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 310         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 311         .vsb_if_khz         = 3250,
 312         .qam_if_khz         = 4000,
 313 };
 314
 315 static struct lgdt3305_config em2874_lgdt3305_dev = {
 316         .i2c_addr           = 0x0e,
 317         .demod_chip         = LGDT3305,
 318         .spectral_inversion = 1,
 319         .deny_i2c_rptr      = 0,
 320         .mpeg_mode          = LGDT3305_MPEG_SERIAL,
 321         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 322         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 323         .vsb_if_khz         = 3250,
 324         .qam_if_khz         = 4000,
 325 };
 326
 327 static struct lgdt3305_config em2874_lgdt3305_nogate_dev = {
 328         .i2c_addr           = 0x0e,
 329         .demod_chip         = LGDT3305,
 330         .spectral_inversion = 1,
 331         .deny_i2c_rptr      = 1,
 332         .mpeg_mode          = LGDT3305_MPEG_SERIAL,
 333         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 334         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 335         .vsb_if_khz         = 3600,
 336         .qam_if_khz         = 3600,
 337 };
 338
 339 static struct s921_config sharp_isdbt = {
 340         .demod_address = 0x30 >> 1
 341 };
 342
 343 static struct zl10353_config em28xx_zl10353_with_xc3028 = {
 344         .demod_address = (0x1e >> 1),
 345         .no_tuner = 1,
 346         .parallel_ts = 1,
 347         .if2 = 45600,
 348 };
 349
 350 static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
 351         .demod_address = 0x32 >> 1,
 352         .output_mode   = S5H1409_PARALLEL_OUTPUT,
 353         .gpio          = S5H1409_GPIO_OFF,
 354         .inversion     = S5H1409_INVERSION_OFF,
 355         .status_mode   = S5H1409_DEMODLOCKING,
 356         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
 357 };
 358
 359 static struct tda18271_std_map kworld_a340_std_map = {
 360         .atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 0,
 361                       .if_lvl = 1, .rfagc_top = 0x37, },
 362         .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 1,
 363                       .if_lvl = 1, .rfagc_top = 0x37, },
 364 };
 365
 366 static struct tda18271_config kworld_a340_config = {
 367         .std_map           = &kworld_a340_std_map,
 368 };
 369
 370 static struct tda18271_config kworld_ub435q_v2_config = {
 371         .std_map        = &kworld_a340_std_map,
 372         .gate           = TDA18271_GATE_DIGITAL,
 373 };
 374
 375 static struct tda18212_config kworld_ub435q_v3_config = {
 376         .if_atsc_vsb    = 3600,
 377         .if_atsc_qam    = 3600,
 378 };
 379
 380 static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
 381         .demod_address = (0x1e >> 1),
 382         .no_tuner = 1,
 383         .disable_i2c_gate_ctrl = 1,
 384         .parallel_ts = 1,
 385         .if2 = 45600,
 386 };
 387
 388 static struct drxd_config em28xx_drxd = {
 389         .demod_address = 0x70,
 390         .demod_revision = 0xa2,
 391         .pll_type = DRXD_PLL_NONE,
 392         .clock = 12000,
 393         .insert_rs_byte = 1,
 394         .IF = 42800000,
 395         .disable_i2c_gate_ctrl = 1,
 396 };
 397
 398 static struct drxk_config terratec_h5_drxk = {
 399         .adr = 0x29,
 400         .single_master = 1,
 401         .no_i2c_bridge = 1,
 402         .microcode_name = "dvb-usb-terratec-h5-drxk.fw",
 403         .qam_demod_parameter_count = 2,
 404 };
 405
 406 static struct drxk_config hauppauge_930c_drxk = {
 407         .adr = 0x29,
 408         .single_master = 1,
 409         .no_i2c_bridge = 1,
 410         .microcode_name = "dvb-usb-hauppauge-hvr930c-drxk.fw",
 411         .chunk_size = 56,
 412         .qam_demod_parameter_count = 2,
 413 };
 414
 415 static struct drxk_config terratec_htc_stick_drxk = {
 416         .adr = 0x29,
 417         .single_master = 1,
 418         .no_i2c_bridge = 1,
 419         .microcode_name = "dvb-usb-terratec-htc-stick-drxk.fw",
 420         .chunk_size = 54,
 421         .qam_demod_parameter_count = 2,
 422         /* Required for the antenna_gpio to disable LNA. */
 423         .antenna_dvbt = true,
 424         /* The windows driver uses the same. This will disable LNA. */
 425         .antenna_gpio = 0x6,
 426 };
 427
 428 static struct drxk_config maxmedia_ub425_tc_drxk = {
 429         .adr = 0x29,
 430         .single_master = 1,
 431         .no_i2c_bridge = 1,
 432         .microcode_name = "dvb-demod-drxk-01.fw",
 433         .chunk_size = 62,
 434         .qam_demod_parameter_count = 2,
 435 };
 436
 437 static struct drxk_config pctv_520e_drxk = {
 438         .adr = 0x29,
 439         .single_master = 1,
 440         .microcode_name = "dvb-demod-drxk-pctv.fw",
 441         .qam_demod_parameter_count = 2,
 442         .chunk_size = 58,
 443         .antenna_dvbt = true, /* disable LNA */
 444         .antenna_gpio = (1 << 2), /* disable LNA */
 445 };
 446
 447 static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
 448 {
 449         struct em28xx_dvb *dvb = fe->sec_priv;
 450         int status;
 451
 452         if (!dvb)
 453                 return -EINVAL;
 454
 455         if (enable) {
 456                 down(&dvb->pll_mutex);
 457                 status = dvb->gate_ctrl(fe, 1);
 458         } else {
 459                 status = dvb->gate_ctrl(fe, 0);
 460                 up(&dvb->pll_mutex);
 461         }
 462         return status;
 463 }
 464
 465 static void hauppauge_hvr930c_init(struct em28xx *dev)
 466 {
 467         int i;
 468
 469         struct em28xx_reg_seq hauppauge_hvr930c_init[] = {
 470                 {EM2874_R80_GPIO_P0_CTRL,       0xff,   0xff,   0x65},
 471                 {EM2874_R80_GPIO_P0_CTRL,       0xfb,   0xff,   0x32},
 472                 {EM2874_R80_GPIO_P0_CTRL,       0xff,   0xff,   0xb8},
 473                 {       -1,                     -1,     -1,     -1},
 474         };
 475         struct em28xx_reg_seq hauppauge_hvr930c_end[] = {
 476                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x01},
 477                 {EM2874_R80_GPIO_P0_CTRL,       0xaf,   0xff,   0x65},
 478                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x76},
 479                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x01},
 480                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x0b},
 481                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x40},
 482
 483                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x65},
 484                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x65},
 485                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x0b},
 486                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x65},
 487
 488                 {       -1,                     -1,     -1,     -1},
 489         };
 490
 491         struct {
 492                 unsigned char r[4];
 493                 int len;
 494         } regs[] = {
 495                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 496                 {{ 0x01, 0x02 }, 2},
 497                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 498                 {{ 0x01, 0x00 }, 2},
 499                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 500                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 501                 {{ 0x01, 0x00 }, 2},
 502                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 503                 {{ 0x04, 0x00 }, 2},
 504                 {{ 0x00, 0x04 }, 2},
 505                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 506                 {{ 0x04, 0x14 }, 2},
 507                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 508         };
 509
 510         em28xx_gpio_set(dev, hauppauge_hvr930c_init);
 511         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 512         msleep(10);
 513         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 514         msleep(10);
 515
 516         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 517
 518         for (i = 0; i < ARRAY_SIZE(regs); i++)
 519                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 520         em28xx_gpio_set(dev, hauppauge_hvr930c_end);
 521
 522         msleep(100);
 523
 524         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 525         msleep(30);
 526
 527         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 528         msleep(10);
 529
 530 }
 531
 532 static void terratec_h5_init(struct em28xx *dev)
 533 {
 534         int i;
 535         struct em28xx_reg_seq terratec_h5_init[] = {
 536                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 537                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 538                 {EM2874_R80_GPIO_P0_CTRL,       0xf2,   0xff,   50},
 539                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 540                 {       -1,                     -1,     -1,     -1},
 541         };
 542         struct em28xx_reg_seq terratec_h5_end[] = {
 543                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 544                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   50},
 545                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 546                 {       -1,                     -1,     -1,     -1},
 547         };
 548         struct {
 549                 unsigned char r[4];
 550                 int len;
 551         } regs[] = {
 552                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 553                 {{ 0x01, 0x02 }, 2},
 554                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 555                 {{ 0x01, 0x00 }, 2},
 556                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 557                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 558                 {{ 0x01, 0x00 }, 2},
 559                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 560                 {{ 0x04, 0x00 }, 2},
 561                 {{ 0x00, 0x04 }, 2},
 562                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 563                 {{ 0x04, 0x14 }, 2},
 564                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 565         };
 566
 567         em28xx_gpio_set(dev, terratec_h5_init);
 568         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 569         msleep(10);
 570         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 571         msleep(10);
 572
 573         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 574
 575         for (i = 0; i < ARRAY_SIZE(regs); i++)
 576                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 577         em28xx_gpio_set(dev, terratec_h5_end);
 578 };
 579
 580 static void terratec_htc_stick_init(struct em28xx *dev)
 581 {
 582         int i;
 583
 584         /*
 585          * GPIO configuration:
 586          * 0xff: unknown (does not affect DVB-T).
 587          * 0xf6: DRX-K (demodulator).
 588          * 0xe6: unknown (does not affect DVB-T).
 589          * 0xb6: unknown (does not affect DVB-T).
 590          */
 591         struct em28xx_reg_seq terratec_htc_stick_init[] = {
 592                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 593                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 594                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   50},
 595                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 596                 {       -1,                     -1,     -1,     -1},
 597         };
 598         struct em28xx_reg_seq terratec_htc_stick_end[] = {
 599                 {EM2874_R80_GPIO_P0_CTRL,       0xb6,   0xff,   100},
 600                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   50},
 601                 {       -1,                     -1,     -1,     -1},
 602         };
 603
 604         /*
 605          * Init the analog decoder (not yet supported), but
 606          * it's probably still a good idea.
 607          */
 608         struct {
 609                 unsigned char r[4];
 610                 int len;
 611         } regs[] = {
 612                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 613                 {{ 0x01, 0x02 }, 2},
 614                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 615                 {{ 0x01, 0x00 }, 2},
 616                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 617         };
 618
 619         em28xx_gpio_set(dev, terratec_htc_stick_init);
 620
 621         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 622         msleep(10);
 623         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 624         msleep(10);
 625
 626         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 627
 628         for (i = 0; i < ARRAY_SIZE(regs); i++)
 629                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 630
 631         em28xx_gpio_set(dev, terratec_htc_stick_end);
 632 };
 633
 634 static void terratec_htc_usb_xs_init(struct em28xx *dev)
 635 {
 636         int i;
 637
 638         struct em28xx_reg_seq terratec_htc_usb_xs_init[] = {
 639                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 640                 {EM2874_R80_GPIO_P0_CTRL,       0xb2,   0xff,   100},
 641                 {EM2874_R80_GPIO_P0_CTRL,       0xb2,   0xff,   50},
 642                 {EM2874_R80_GPIO_P0_CTRL,       0xb6,   0xff,   100},
 643                 {       -1,                     -1,     -1,     -1},
 644         };
 645         struct em28xx_reg_seq terratec_htc_usb_xs_end[] = {
 646                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   100},
 647                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   50},
 648                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 649                 {       -1,                     -1,     -1,     -1},
 650         };
 651
 652         /*
 653          * Init the analog decoder (not yet supported), but
 654          * it's probably still a good idea.
 655          */
 656         struct {
 657                 unsigned char r[4];
 658                 int len;
 659         } regs[] = {
 660                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 661                 {{ 0x01, 0x02 }, 2},
 662                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 663                 {{ 0x01, 0x00 }, 2},
 664                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 665                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 666                 {{ 0x01, 0x00 }, 2},
 667                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 668                 {{ 0x04, 0x00 }, 2},
 669                 {{ 0x00, 0x04 }, 2},
 670                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 671                 {{ 0x04, 0x14 }, 2},
 672                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 673         };
 674
 675         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 676
 677         em28xx_gpio_set(dev, terratec_htc_usb_xs_init);
 678
 679         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 680         msleep(10);
 681         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 682         msleep(10);
 683
 684         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 685
 686         for (i = 0; i < ARRAY_SIZE(regs); i++)
 687                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 688
 689         em28xx_gpio_set(dev, terratec_htc_usb_xs_end);
 690 };
 691
 692 static void pctv_520e_init(struct em28xx *dev)
 693 {
 694         /*
 695          * Init AVF4910B analog decoder. Looks like I2C traffic to
 696          * digital demodulator and tuner are routed via AVF4910B.
 697          */
 698         int i;
 699         struct {
 700                 unsigned char r[4];
 701                 int len;
 702         } regs[] = {
 703                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 704                 {{ 0x01, 0x02 }, 2},
 705                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 706                 {{ 0x01, 0x00 }, 2},
 707                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 708                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 709                 {{ 0x01, 0x00 }, 2},
 710                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 711         };
 712
 713         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1; /* 0x41 */
 714
 715         for (i = 0; i < ARRAY_SIZE(regs); i++)
 716                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 717 };
 718
 719 static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe)
 720 {
 721         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 722         struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
 723         struct em28xx *dev = i2c_bus->dev;
 724 #ifdef CONFIG_GPIOLIB
 725         struct em28xx_dvb *dvb = dev->dvb;
 726         int ret;
 727         unsigned long flags;
 728
 729         if (c->lna == 1)
 730                 flags = GPIOF_OUT_INIT_HIGH; /* enable LNA */
 731         else
 732                 flags = GPIOF_OUT_INIT_LOW; /* disable LNA */
 733
 734         ret = gpio_request_one(dvb->lna_gpio, flags, NULL);
 735         if (ret)
 736                 em28xx_errdev("gpio request failed %d\n", ret);
 737         else
 738                 gpio_free(dvb->lna_gpio);
 739
 740         return ret;
 741 #else
 742         dev_warn(&dev->udev->dev, "%s: LNA control is disabled (lna=%u)\n",
 743                         KBUILD_MODNAME, c->lna);
 744         return 0;
 745 #endif
 746 }
 747
 748 static int em28xx_pctv_292e_set_lna(struct dvb_frontend *fe)
 749 {
 750         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 751         struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
 752         struct em28xx *dev = i2c_bus->dev;
 753         u8 lna;
 754
 755         if (c->lna == 1)
 756                 lna = 0x01;
 757         else
 758                 lna = 0x00;
 759
 760         return em28xx_write_reg_bits(dev, EM2874_R80_GPIO_P0_CTRL, lna, 0x01);
 761 }
 762
 763 static int em28xx_mt352_terratec_xs_init(struct dvb_frontend *fe)
 764 {
 765         /* Values extracted from a USB trace of the Terratec Windows driver */
 766         static u8 clock_config[]   = { CLOCK_CTL,  0x38, 0x2c };
 767         static u8 reset[]          = { RESET,      0x80 };
 768         static u8 adc_ctl_1_cfg[]  = { ADC_CTL_1,  0x40 };
 769         static u8 agc_cfg[]        = { AGC_TARGET, 0x28, 0xa0 };
 770         static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
 771         static u8 rs_err_cfg[]     = { RS_ERR_PER_1, 0x00, 0x4d };
 772         static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
 773         static u8 trl_nom_cfg[]    = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
 774         static u8 tps_given_cfg[]  = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
 775         static u8 tuner_go[]       = { TUNER_GO, 0x01};
 776
 777         mt352_write(fe, clock_config,   sizeof(clock_config));
 778         udelay(200);
 779         mt352_write(fe, reset,          sizeof(reset));
 780         mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));
 781         mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
 782         mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
 783         mt352_write(fe, rs_err_cfg,     sizeof(rs_err_cfg));
 784         mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
 785         mt352_write(fe, trl_nom_cfg,    sizeof(trl_nom_cfg));
 786         mt352_write(fe, tps_given_cfg,  sizeof(tps_given_cfg));
 787         mt352_write(fe, tuner_go,       sizeof(tuner_go));
 788         return 0;
 789 }
 790
 791 static struct mt352_config terratec_xs_mt352_cfg = {
 792         .demod_address = (0x1e >> 1),
 793         .no_tuner = 1,
 794         .if2 = 45600,
 795         .demod_init = em28xx_mt352_terratec_xs_init,
 796 };
 797
 798 static struct tda10023_config em28xx_tda10023_config = {
 799         .demod_address = 0x0c,
 800         .invert = 1,
 801 };
 802
 803 static struct cxd2820r_config em28xx_cxd2820r_config = {
 804         .i2c_address = (0xd8 >> 1),
 805         .ts_mode = CXD2820R_TS_SERIAL,
 806 };
 807
 808 static struct tda18271_config em28xx_cxd2820r_tda18271_config = {
 809         .output_opt = TDA18271_OUTPUT_LT_OFF,
 810         .gate = TDA18271_GATE_DIGITAL,
 811 };
 812
 813 static const struct tda10071_config em28xx_tda10071_config = {
 814         .demod_i2c_addr = 0x55, /* (0xaa >> 1) */
 815         .tuner_i2c_addr = 0x14,
 816         .i2c_wr_max = 64,
 817         .ts_mode = TDA10071_TS_SERIAL,
 818         .spec_inv = 0,
 819         .xtal = 40444000, /* 40.444 MHz */
 820         .pll_multiplier = 20,
 821 };
 822
 823 static const struct a8293_config em28xx_a8293_config = {
 824         .i2c_addr = 0x08, /* (0x10 >> 1) */
 825 };
 826
 827 static struct zl10353_config em28xx_zl10353_no_i2c_gate_dev = {
 828         .demod_address = (0x1e >> 1),
 829         .disable_i2c_gate_ctrl = 1,
 830         .no_tuner = 1,
 831         .parallel_ts = 1,
 832 };
 833 static struct qt1010_config em28xx_qt1010_config = {
 834         .i2c_address = 0x62
 835 };
 836
 837 static const struct mb86a20s_config c3tech_duo_mb86a20s_config = {
 838         .demod_address = 0x10,
 839         .is_serial = true,
 840 };
 841
 842 static struct tda18271_std_map mb86a20s_tda18271_config = {
 843         .dvbt_6   = { .if_freq = 4000, .agc_mode = 3, .std = 4,
 844                       .if_lvl = 1, .rfagc_top = 0x37, },
 845 };
 846
 847 static struct tda18271_config c3tech_duo_tda18271_config = {
 848         .std_map = &mb86a20s_tda18271_config,
 849         .gate    = TDA18271_GATE_DIGITAL,
 850         .small_i2c = TDA18271_03_BYTE_CHUNK_INIT,
 851 };
 852
 853 static const struct m88ds3103_config pctv_461e_m88ds3103_config = {
 854         .i2c_addr = 0x68,
 855         .clock = 27000000,
 856         .i2c_wr_max = 33,
 857         .clock_out = 0,
 858         .ts_mode = M88DS3103_TS_PARALLEL,
 859         .ts_clk = 16000,
 860         .ts_clk_pol = 1,
 861         .agc = 0x99,
 862 };
 863
 864
 865 static struct tda18271_std_map drx_j_std_map = {
 866         .atsc_6   = { .if_freq = 5000, .agc_mode = 3, .std = 0, .if_lvl = 1,
 867                       .rfagc_top = 0x37, },
 868         .qam_6    = { .if_freq = 5380, .agc_mode = 3, .std = 3, .if_lvl = 1,
 869                       .rfagc_top = 0x37, },
 870 };
 871
 872 static struct tda18271_config pinnacle_80e_dvb_config = {
 873         .std_map = &drx_j_std_map,
 874         .gate    = TDA18271_GATE_DIGITAL,
 875         .role    = TDA18271_MASTER,
 876 };
 877
 878 /* ------------------------------------------------------------------ */
 879
 880 static int em28xx_attach_xc3028(u8 addr, struct em28xx *dev)
 881 {
 882         struct dvb_frontend *fe;
 883         struct xc2028_config cfg;
 884         struct xc2028_ctrl ctl;
 885
 886         memset(&cfg, 0, sizeof(cfg));
 887         cfg.i2c_adap  = &dev->i2c_adap[dev->def_i2c_bus];
 888         cfg.i2c_addr  = addr;
 889
 890         memset(&ctl, 0, sizeof(ctl));
 891         em28xx_setup_xc3028(dev, &ctl);
 892         cfg.ctrl  = &ctl;
 893
 894         if (!dev->dvb->fe[0]) {
 895                 em28xx_errdev("/2: dvb frontend not attached. "
 896                                 "Can't attach xc3028\n");
 897                 return -EINVAL;
 898         }
 899
 900         fe = dvb_attach(xc2028_attach, dev->dvb->fe[0], &cfg);
 901         if (!fe) {
 902                 em28xx_errdev("/2: xc3028 attach failed\n");
 903                 dvb_frontend_detach(dev->dvb->fe[0]);
 904                 dev->dvb->fe[0] = NULL;
 905                 return -EINVAL;
 906         }
 907
 908         em28xx_info("%s/2: xc3028 attached\n", dev->name);
 909
 910         return 0;
 911 }
 912
 913 /* ------------------------------------------------------------------ */
 914
 915 static int em28xx_register_dvb(struct em28xx_dvb *dvb, struct module *module,
 916                                struct em28xx *dev, struct device *device)
 917 {
 918         int result;
 919
 920         mutex_init(&dvb->lock);
 921
 922         /* register adapter */
 923         result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
 924                                       adapter_nr);
 925         if (result < 0) {
 926                 printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
 927                        dev->name, result);
 928                 goto fail_adapter;
 929         }
 930
 931         /* Ensure all frontends negotiate bus access */
 932         dvb->fe[0]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 933         if (dvb->fe[1])
 934                 dvb->fe[1]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 935
 936         dvb->adapter.priv = &dev->i2c_bus[dev->def_i2c_bus];
 937
 938         /* register frontend */
 939         result = dvb_register_frontend(&dvb->adapter, dvb->fe[0]);
 940         if (result < 0) {
 941                 printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
 942                        dev->name, result);
 943                 goto fail_frontend0;
 944         }
 945
 946         /* register 2nd frontend */
 947         if (dvb->fe[1]) {
 948                 result = dvb_register_frontend(&dvb->adapter, dvb->fe[1]);
 949                 if (result < 0) {
 950                         printk(KERN_WARNING "%s: 2nd dvb_register_frontend failed (errno = %d)\n",
 951                                 dev->name, result);
 952                         goto fail_frontend1;
 953                 }
 954         }
 955
 956         /* register demux stuff */
 957         dvb->demux.dmx.capabilities =
 958                 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 959                 DMX_MEMORY_BASED_FILTERING;
 960         dvb->demux.priv       = dvb;
 961         dvb->demux.filternum  = 256;
 962         dvb->demux.feednum    = 256;
 963         dvb->demux.start_feed = em28xx_start_feed;
 964         dvb->demux.stop_feed  = em28xx_stop_feed;
 965
 966         result = dvb_dmx_init(&dvb->demux);
 967         if (result < 0) {
 968                 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
 969                        dev->name, result);
 970                 goto fail_dmx;
 971         }
 972
 973         dvb->dmxdev.filternum    = 256;
 974         dvb->dmxdev.demux        = &dvb->demux.dmx;
 975         dvb->dmxdev.capabilities = 0;
 976         result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
 977         if (result < 0) {
 978                 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
 979                        dev->name, result);
 980                 goto fail_dmxdev;
 981         }
 982
 983         dvb->fe_hw.source = DMX_FRONTEND_0;
 984         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 985         if (result < 0) {
 986                 printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
 987                        dev->name, result);
 988                 goto fail_fe_hw;
 989         }
 990
 991         dvb->fe_mem.source = DMX_MEMORY_FE;
 992         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 993         if (result < 0) {
 994                 printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
 995                        dev->name, result);
 996                 goto fail_fe_mem;
 997         }
 998
 999         result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
1000         if (result < 0) {
1001                 printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
1002                        dev->name, result);
1003                 goto fail_fe_conn;
1004         }
1005
1006         /* register network adapter */
1007         dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
1008         return 0;
1009
1010 fail_fe_conn:
1011         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
1012 fail_fe_mem:
1013         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
1014 fail_fe_hw:
1015         dvb_dmxdev_release(&dvb->dmxdev);
1016 fail_dmxdev:
1017         dvb_dmx_release(&dvb->demux);
1018 fail_dmx:
1019         if (dvb->fe[1])
1020                 dvb_unregister_frontend(dvb->fe[1]);
1021         dvb_unregister_frontend(dvb->fe[0]);
1022 fail_frontend1:
1023         if (dvb->fe[1])
1024                 dvb_frontend_detach(dvb->fe[1]);
1025 fail_frontend0:
1026         dvb_frontend_detach(dvb->fe[0]);
1027         dvb_unregister_adapter(&dvb->adapter);
1028 fail_adapter:
1029         return result;
1030 }
1031
1032 static void em28xx_unregister_dvb(struct em28xx_dvb *dvb)
1033 {
1034         dvb_net_release(&dvb->net);
1035         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
1036         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
1037         dvb_dmxdev_release(&dvb->dmxdev);
1038         dvb_dmx_release(&dvb->demux);
1039         if (dvb->fe[1])
1040                 dvb_unregister_frontend(dvb->fe[1]);
1041         dvb_unregister_frontend(dvb->fe[0]);
1042         if (dvb->fe[1] && !dvb->dont_attach_fe1)
1043                 dvb_frontend_detach(dvb->fe[1]);
1044         dvb_frontend_detach(dvb->fe[0]);
1045         dvb_unregister_adapter(&dvb->adapter);
1046 }
1047
1048 static int em28xx_dvb_init(struct em28xx *dev)
1049 {
1050         int result = 0, mfe_shared = 0;
1051         struct em28xx_dvb *dvb;
1052
1053         if (dev->is_audio_only) {
1054                 /* Shouldn't initialize IR for this interface */
1055                 return 0;
1056         }
1057
1058         if (!dev->board.has_dvb) {
1059                 /* This device does not support the extension */
1060                 return 0;
1061         }
1062
1063         em28xx_info("Binding DVB extension\n");
1064
1065         dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
1066         if (dvb == NULL) {
1067                 em28xx_info("em28xx_dvb: memory allocation failed\n");
1068                 return -ENOMEM;
1069         }
1070         dev->dvb = dvb;
1071         dvb->fe[0] = dvb->fe[1] = NULL;
1072
1073         /* pre-allocate DVB usb transfer buffers */
1074         if (dev->dvb_xfer_bulk) {
1075                 result = em28xx_alloc_urbs(dev, EM28XX_DIGITAL_MODE,
1076                                            dev->dvb_xfer_bulk,
1077                                            EM28XX_DVB_NUM_BUFS,
1078                                            512,
1079                                            EM28XX_DVB_BULK_PACKET_MULTIPLIER);
1080         } else {
1081                 result = em28xx_alloc_urbs(dev, EM28XX_DIGITAL_MODE,
1082                                            dev->dvb_xfer_bulk,
1083                                            EM28XX_DVB_NUM_BUFS,
1084                                            dev->dvb_max_pkt_size_isoc,
1085                                            EM28XX_DVB_NUM_ISOC_PACKETS);
1086         }
1087         if (result) {
1088                 em28xx_errdev("em28xx_dvb: failed to pre-allocate USB transfer buffers for DVB.\n");
1089                 kfree(dvb);
1090                 dev->dvb = NULL;
1091                 return result;
1092         }
1093
1094         mutex_lock(&dev->lock);
1095         em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
1096         /* init frontend */
1097         switch (dev->model) {
1098         case EM2874_BOARD_LEADERSHIP_ISDBT:
1099                 dvb->fe[0] = dvb_attach(s921_attach,
1100                                 &sharp_isdbt, &dev->i2c_adap[dev->def_i2c_bus]);
1101
1102                 if (!dvb->fe[0]) {
1103                         result = -EINVAL;
1104                         goto out_free;
1105                 }
1106
1107                 break;
1108         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
1109         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
1110         case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
1111         case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
1112                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
1113                                            &em2880_lgdt3303_dev,
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_KWORLD_DVB_310U:
1121                 dvb->fe[0] = dvb_attach(zl10353_attach,
1122                                            &em28xx_zl10353_with_xc3028,
1123                                            &dev->i2c_adap[dev->def_i2c_bus]);
1124                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1125                         result = -EINVAL;
1126                         goto out_free;
1127                 }
1128                 break;
1129         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
1130         case EM2882_BOARD_TERRATEC_HYBRID_XS:
1131         case EM2880_BOARD_EMPIRE_DUAL_TV:
1132                 dvb->fe[0] = dvb_attach(zl10353_attach,
1133                                            &em28xx_zl10353_xc3028_no_i2c_gate,
1134                                            &dev->i2c_adap[dev->def_i2c_bus]);
1135                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1136                         result = -EINVAL;
1137                         goto out_free;
1138                 }
1139                 break;
1140         case EM2880_BOARD_TERRATEC_HYBRID_XS:
1141         case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
1142         case EM2881_BOARD_PINNACLE_HYBRID_PRO:
1143         case EM2882_BOARD_DIKOM_DK300:
1144         case EM2882_BOARD_KWORLD_VS_DVBT:
1145                 dvb->fe[0] = dvb_attach(zl10353_attach,
1146                                            &em28xx_zl10353_xc3028_no_i2c_gate,
1147                                            &dev->i2c_adap[dev->def_i2c_bus]);
1148                 if (dvb->fe[0] == NULL) {
1149                         /* This board could have either a zl10353 or a mt352.
1150                            If the chip id isn't for zl10353, try mt352 */
1151                         dvb->fe[0] = dvb_attach(mt352_attach,
1152                                                    &terratec_xs_mt352_cfg,
1153                                                    &dev->i2c_adap[dev->def_i2c_bus]);
1154                 }
1155
1156                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1157                         result = -EINVAL;
1158                         goto out_free;
1159                 }
1160                 break;
1161         case EM2870_BOARD_KWORLD_355U:
1162                 dvb->fe[0] = dvb_attach(zl10353_attach,
1163                                            &em28xx_zl10353_no_i2c_gate_dev,
1164                                            &dev->i2c_adap[dev->def_i2c_bus]);
1165                 if (dvb->fe[0] != NULL)
1166                         dvb_attach(qt1010_attach, dvb->fe[0],
1167                                    &dev->i2c_adap[dev->def_i2c_bus], &em28xx_qt1010_config);
1168                 break;
1169         case EM2883_BOARD_KWORLD_HYBRID_330U:
1170         case EM2882_BOARD_EVGA_INDTUBE:
1171                 dvb->fe[0] = dvb_attach(s5h1409_attach,
1172                                            &em28xx_s5h1409_with_xc3028,
1173                                            &dev->i2c_adap[dev->def_i2c_bus]);
1174                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1175                         result = -EINVAL;
1176                         goto out_free;
1177                 }
1178                 break;
1179         case EM2882_BOARD_KWORLD_ATSC_315U:
1180                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
1181                                            &em2880_lgdt3303_dev,
1182                                            &dev->i2c_adap[dev->def_i2c_bus]);
1183                 if (dvb->fe[0] != NULL) {
1184                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1185                                 &dev->i2c_adap[dev->def_i2c_bus], 0x61, TUNER_THOMSON_DTT761X)) {
1186                                 result = -EINVAL;
1187                                 goto out_free;
1188                         }
1189                 }
1190                 break;
1191         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
1192         case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
1193                 dvb->fe[0] = dvb_attach(drxd_attach, &em28xx_drxd, NULL,
1194                                            &dev->i2c_adap[dev->def_i2c_bus], &dev->udev->dev);
1195                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1196                         result = -EINVAL;
1197                         goto out_free;
1198                 }
1199                 break;
1200         case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
1201                 /* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
1202                 dvb->fe[0] = dvb_attach(tda10023_attach,
1203                         &em28xx_tda10023_config,
1204                         &dev->i2c_adap[dev->def_i2c_bus], 0x48);
1205                 if (dvb->fe[0]) {
1206                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1207                                 &dev->i2c_adap[dev->def_i2c_bus], 0x60, TUNER_PHILIPS_CU1216L)) {
1208                                 result = -EINVAL;
1209                                 goto out_free;
1210                         }
1211                 }
1212                 break;
1213         case EM2870_BOARD_KWORLD_A340:
1214                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1215                                            &em2870_lgdt3304_dev,
1216                                            &dev->i2c_adap[dev->def_i2c_bus]);
1217                 if (!dvb->fe[0]) {
1218                         result = -EINVAL;
1219                         goto out_free;
1220                 }
1221                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1222                         &dev->i2c_adap[dev->def_i2c_bus],
1223                         &kworld_a340_config)) {
1224                                 dvb_frontend_detach(dvb->fe[0]);
1225                                 result = -EINVAL;
1226                                 goto out_free;
1227                 }
1228                 break;
1229         case EM28174_BOARD_PCTV_290E:
1230                 /* set default GPIO0 for LNA, used if GPIOLIB is undefined */
1231                 dvb->lna_gpio = CXD2820R_GPIO_E | CXD2820R_GPIO_O |
1232                                 CXD2820R_GPIO_L;
1233                 dvb->fe[0] = dvb_attach(cxd2820r_attach,
1234                                         &em28xx_cxd2820r_config,
1235                                         &dev->i2c_adap[dev->def_i2c_bus],
1236                                         &dvb->lna_gpio);
1237                 if (dvb->fe[0]) {
1238                         /* FE 0 attach tuner */
1239                         if (!dvb_attach(tda18271_attach,
1240                                         dvb->fe[0],
1241                                         0x60,
1242                                         &dev->i2c_adap[dev->def_i2c_bus],
1243                                         &em28xx_cxd2820r_tda18271_config)) {
1244
1245                                 dvb_frontend_detach(dvb->fe[0]);
1246                                 result = -EINVAL;
1247                                 goto out_free;
1248                         }
1249
1250 #ifdef CONFIG_GPIOLIB
1251                         /* enable LNA for DVB-T, DVB-T2 and DVB-C */
1252                         result = gpio_request_one(dvb->lna_gpio,
1253                                         GPIOF_OUT_INIT_LOW, NULL);
1254                         if (result)
1255                                 em28xx_errdev("gpio request failed %d\n",
1256                                                 result);
1257                         else
1258                                 gpio_free(dvb->lna_gpio);
1259
1260                         result = 0; /* continue even set LNA fails */
1261 #endif
1262                         dvb->fe[0]->ops.set_lna = em28xx_pctv_290e_set_lna;
1263                 }
1264
1265                 break;
1266         case EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C:
1267         {
1268                 struct xc5000_config cfg;
1269                 hauppauge_hvr930c_init(dev);
1270
1271                 dvb->fe[0] = dvb_attach(drxk_attach,
1272                                         &hauppauge_930c_drxk, &dev->i2c_adap[dev->def_i2c_bus]);
1273                 if (!dvb->fe[0]) {
1274                         result = -EINVAL;
1275                         goto out_free;
1276                 }
1277                 /* FIXME: do we need a pll semaphore? */
1278                 dvb->fe[0]->sec_priv = dvb;
1279                 sema_init(&dvb->pll_mutex, 1);
1280                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1281                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1282
1283                 /* Attach xc5000 */
1284                 memset(&cfg, 0, sizeof(cfg));
1285                 cfg.i2c_address  = 0x61;
1286                 cfg.if_khz = 4000;
1287
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(xc5000_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus],
1291                                 &cfg)) {
1292                         result = -EINVAL;
1293                         goto out_free;
1294                 }
1295                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1296                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1297
1298                 break;
1299         }
1300         case EM2884_BOARD_TERRATEC_H5:
1301                 terratec_h5_init(dev);
1302
1303                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_h5_drxk, &dev->i2c_adap[dev->def_i2c_bus]);
1304                 if (!dvb->fe[0]) {
1305                         result = -EINVAL;
1306                         goto out_free;
1307                 }
1308                 /* FIXME: do we need a pll semaphore? */
1309                 dvb->fe[0]->sec_priv = dvb;
1310                 sema_init(&dvb->pll_mutex, 1);
1311                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1312                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1313
1314                 /* Attach tda18271 to DVB-C frontend */
1315                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1316                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1317                 if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus], 0x60)) {
1318                         result = -EINVAL;
1319                         goto out_free;
1320                 }
1321                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1322                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1323
1324                 break;
1325         case EM2884_BOARD_C3TECH_DIGITAL_DUO:
1326                 dvb->fe[0] = dvb_attach(mb86a20s_attach,
1327                                            &c3tech_duo_mb86a20s_config,
1328                                            &dev->i2c_adap[dev->def_i2c_bus]);
1329                 if (dvb->fe[0] != NULL)
1330                         dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1331                                    &dev->i2c_adap[dev->def_i2c_bus],
1332                                    &c3tech_duo_tda18271_config);
1333                 break;
1334         case EM28174_BOARD_PCTV_460E:
1335                 /* attach demod */
1336                 dvb->fe[0] = dvb_attach(tda10071_attach,
1337                         &em28xx_tda10071_config, &dev->i2c_adap[dev->def_i2c_bus]);
1338
1339                 /* attach SEC */
1340                 if (dvb->fe[0])
1341                         dvb_attach(a8293_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus],
1342                                 &em28xx_a8293_config);
1343                 break;
1344         case EM2874_BOARD_DELOCK_61959:
1345         case EM2874_BOARD_MAXMEDIA_UB425_TC:
1346                 /* attach demodulator */
1347                 dvb->fe[0] = dvb_attach(drxk_attach, &maxmedia_ub425_tc_drxk,
1348                                 &dev->i2c_adap[dev->def_i2c_bus]);
1349
1350                 if (dvb->fe[0]) {
1351                         /* disable I2C-gate */
1352                         dvb->fe[0]->ops.i2c_gate_ctrl = NULL;
1353
1354                         /* attach tuner */
1355                         if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1356                                         &dev->i2c_adap[dev->def_i2c_bus],
1357                                         &em28xx_cxd2820r_tda18271_config)) {
1358                                 dvb_frontend_detach(dvb->fe[0]);
1359                                 result = -EINVAL;
1360                                 goto out_free;
1361                         }
1362                 }
1363                 break;
1364         case EM2884_BOARD_PCTV_510E:
1365         case EM2884_BOARD_PCTV_520E:
1366                 pctv_520e_init(dev);
1367
1368                 /* attach demodulator */
1369                 dvb->fe[0] = dvb_attach(drxk_attach, &pctv_520e_drxk,
1370                                 &dev->i2c_adap[dev->def_i2c_bus]);
1371
1372                 if (dvb->fe[0]) {
1373                         /* attach tuner */
1374                         if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1375                                         &dev->i2c_adap[dev->def_i2c_bus],
1376                                         &em28xx_cxd2820r_tda18271_config)) {
1377                                 dvb_frontend_detach(dvb->fe[0]);
1378                                 result = -EINVAL;
1379                                 goto out_free;
1380                         }
1381                 }
1382                 break;
1383         case EM2884_BOARD_CINERGY_HTC_STICK:
1384                 terratec_htc_stick_init(dev);
1385
1386                 /* attach demodulator */
1387                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1388                                         &dev->i2c_adap[dev->def_i2c_bus]);
1389                 if (!dvb->fe[0]) {
1390                         result = -EINVAL;
1391                         goto out_free;
1392                 }
1393
1394                 /* Attach the demodulator. */
1395                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1396                                 &dev->i2c_adap[dev->def_i2c_bus],
1397                                 &em28xx_cxd2820r_tda18271_config)) {
1398                         result = -EINVAL;
1399                         goto out_free;
1400                 }
1401                 break;
1402         case EM2884_BOARD_TERRATEC_HTC_USB_XS:
1403                 terratec_htc_usb_xs_init(dev);
1404
1405                 /* attach demodulator */
1406                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1407                                         &dev->i2c_adap[dev->def_i2c_bus]);
1408                 if (!dvb->fe[0]) {
1409                         result = -EINVAL;
1410                         goto out_free;
1411                 }
1412
1413                 /* Attach the demodulator. */
1414                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1415                                 &dev->i2c_adap[dev->def_i2c_bus],
1416                                 &em28xx_cxd2820r_tda18271_config)) {
1417                         result = -EINVAL;
1418                         goto out_free;
1419                 }
1420                 break;
1421         case EM2874_BOARD_KWORLD_UB435Q_V2:
1422                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1423                                         &em2874_lgdt3305_dev,
1424                                         &dev->i2c_adap[dev->def_i2c_bus]);
1425                 if (!dvb->fe[0]) {
1426                         result = -EINVAL;
1427                         goto out_free;
1428                 }
1429
1430                 /* Attach the demodulator. */
1431                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1432                                 &dev->i2c_adap[dev->def_i2c_bus],
1433                                 &kworld_ub435q_v2_config)) {
1434                         result = -EINVAL;
1435                         goto out_free;
1436                 }
1437                 break;
1438         case EM2874_BOARD_KWORLD_UB435Q_V3:
1439         {
1440                 struct i2c_client *client;
1441                 struct i2c_adapter *adapter = &dev->i2c_adap[dev->def_i2c_bus];
1442                 struct i2c_board_info board_info = {
1443                         .type = "tda18212",
1444                         .addr = 0x60,
1445                         .platform_data = &kworld_ub435q_v3_config,
1446                 };
1447
1448                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1449                                         &em2874_lgdt3305_nogate_dev,
1450                                         &dev->i2c_adap[dev->def_i2c_bus]);
1451                 if (!dvb->fe[0]) {
1452                         result = -EINVAL;
1453                         goto out_free;
1454                 }
1455
1456                 /* attach tuner */
1457                 kworld_ub435q_v3_config.fe = dvb->fe[0];
1458                 request_module("tda18212");
1459                 client = i2c_new_device(adapter, &board_info);
1460                 if (client == NULL || client->dev.driver == NULL) {
1461                         dvb_frontend_detach(dvb->fe[0]);
1462                         result = -ENODEV;
1463                         goto out_free;
1464                 }
1465
1466                 if (!try_module_get(client->dev.driver->owner)) {
1467                         i2c_unregister_device(client);
1468                         dvb_frontend_detach(dvb->fe[0]);
1469                         result = -ENODEV;
1470                         goto out_free;
1471                 }
1472
1473                 dvb->i2c_client_tuner = client;
1474                 break;
1475         }
1476         case EM2874_BOARD_PCTV_HD_MINI_80E:
1477                 dvb->fe[0] = dvb_attach(drx39xxj_attach, &dev->i2c_adap[dev->def_i2c_bus]);
1478                 if (dvb->fe[0] != NULL) {
1479                         dvb->fe[0] = dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1480                                                 &dev->i2c_adap[dev->def_i2c_bus],
1481                                                 &pinnacle_80e_dvb_config);
1482                         if (!dvb->fe[0]) {
1483                                 result = -EINVAL;
1484                                 goto out_free;
1485                         }
1486                 }
1487                 break;
1488         case EM28178_BOARD_PCTV_461E:
1489                 {
1490                         /* demod I2C adapter */
1491                         struct i2c_adapter *i2c_adapter;
1492                         struct i2c_client *client;
1493                         struct i2c_board_info info;
1494                         struct m88ts2022_config m88ts2022_config = {
1495                                 .clock = 27000000,
1496                         };
1497                         memset(&info, 0, sizeof(struct i2c_board_info));
1498
1499                         /* attach demod */
1500                         dvb->fe[0] = dvb_attach(m88ds3103_attach,
1501                                         &pctv_461e_m88ds3103_config,
1502                                         &dev->i2c_adap[dev->def_i2c_bus],
1503                                         &i2c_adapter);
1504                         if (dvb->fe[0] == NULL) {
1505                                 result = -ENODEV;
1506                                 goto out_free;
1507                         }
1508
1509                         /* attach tuner */
1510                         m88ts2022_config.fe = dvb->fe[0];
1511                         strlcpy(info.type, "m88ts2022", I2C_NAME_SIZE);
1512                         info.addr = 0x60;
1513                         info.platform_data = &m88ts2022_config;
1514                         request_module("m88ts2022");
1515                         client = i2c_new_device(i2c_adapter, &info);
1516                         if (client == NULL || client->dev.driver == NULL) {
1517                                 dvb_frontend_detach(dvb->fe[0]);
1518                                 result = -ENODEV;
1519                                 goto out_free;
1520                         }
1521
1522                         if (!try_module_get(client->dev.driver->owner)) {
1523                                 i2c_unregister_device(client);
1524                                 dvb_frontend_detach(dvb->fe[0]);
1525                                 result = -ENODEV;
1526                                 goto out_free;
1527                         }
1528
1529                         /* delegate signal strength measurement to tuner */
1530                         dvb->fe[0]->ops.read_signal_strength =
1531                                         dvb->fe[0]->ops.tuner_ops.get_rf_strength;
1532
1533                         /* attach SEC */
1534                         if (!dvb_attach(a8293_attach, dvb->fe[0],
1535                                         &dev->i2c_adap[dev->def_i2c_bus],
1536                                         &em28xx_a8293_config)) {
1537                                 module_put(client->dev.driver->owner);
1538                                 i2c_unregister_device(client);
1539                                 dvb_frontend_detach(dvb->fe[0]);
1540                                 result = -ENODEV;
1541                                 goto out_free;
1542                         }
1543
1544                         dvb->i2c_client_tuner = client;
1545                 }
1546                 break;
1547         case EM28178_BOARD_PCTV_292E:
1548                 {
1549                         struct i2c_adapter *adapter;
1550                         struct i2c_client *client;
1551                         struct i2c_board_info info;
1552                         struct si2168_config si2168_config;
1553                         struct si2157_config si2157_config;
1554
1555                         /* attach demod */
1556                         si2168_config.i2c_adapter = &adapter;
1557                         si2168_config.fe = &dvb->fe[0];
1558                         si2168_config.ts_mode = SI2168_TS_PARALLEL;
1559                         memset(&info, 0, sizeof(struct i2c_board_info));
1560                         strlcpy(info.type, "si2168", I2C_NAME_SIZE);
1561                         info.addr = 0x64;
1562                         info.platform_data = &si2168_config;
1563                         request_module(info.type);
1564                         client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info);
1565                         if (client == NULL || client->dev.driver == NULL) {
1566                                 result = -ENODEV;
1567                                 goto out_free;
1568                         }
1569
1570                         if (!try_module_get(client->dev.driver->owner)) {
1571                                 i2c_unregister_device(client);
1572                                 result = -ENODEV;
1573                                 goto out_free;
1574                         }
1575
1576                         dvb->i2c_client_demod = client;
1577
1578                         /* attach tuner */
1579                         memset(&si2157_config, 0, sizeof(si2157_config));
1580                         si2157_config.fe = dvb->fe[0];
1581                         memset(&info, 0, sizeof(struct i2c_board_info));
1582                         strlcpy(info.type, "si2157", I2C_NAME_SIZE);
1583                         info.addr = 0x60;
1584                         info.platform_data = &si2157_config;
1585                         request_module(info.type);
1586                         client = i2c_new_device(adapter, &info);
1587                         if (client == NULL || client->dev.driver == NULL) {
1588                                 module_put(dvb->i2c_client_demod->dev.driver->owner);
1589                                 i2c_unregister_device(dvb->i2c_client_demod);
1590                                 result = -ENODEV;
1591                                 goto out_free;
1592                         }
1593
1594                         if (!try_module_get(client->dev.driver->owner)) {
1595                                 i2c_unregister_device(client);
1596                                 module_put(dvb->i2c_client_demod->dev.driver->owner);
1597                                 i2c_unregister_device(dvb->i2c_client_demod);
1598                                 result = -ENODEV;
1599                                 goto out_free;
1600                         }
1601
1602                         dvb->i2c_client_tuner = client;
1603                         dvb->fe[0]->ops.set_lna = em28xx_pctv_292e_set_lna;
1604                 }
1605                 break;
1606         default:
1607                 em28xx_errdev("/2: The frontend of your DVB/ATSC card"
1608                                 " isn't supported yet\n");
1609                 break;
1610         }
1611         if (NULL == dvb->fe[0]) {
1612                 em28xx_errdev("/2: frontend initialization failed\n");
1613                 result = -EINVAL;
1614                 goto out_free;
1615         }
1616         /* define general-purpose callback pointer */
1617         dvb->fe[0]->callback = em28xx_tuner_callback;
1618         if (dvb->fe[1])
1619                 dvb->fe[1]->callback = em28xx_tuner_callback;
1620
1621         /* register everything */
1622         result = em28xx_register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
1623
1624         if (result < 0)
1625                 goto out_free;
1626
1627         /* MFE lock */
1628         dvb->adapter.mfe_shared = mfe_shared;
1629
1630         em28xx_info("DVB extension successfully initialized\n");
1631
1632         kref_get(&dev->ref);
1633
1634 ret:
1635         em28xx_set_mode(dev, EM28XX_SUSPEND);
1636         mutex_unlock(&dev->lock);
1637         return result;
1638
1639 out_free:
1640         kfree(dvb);
1641         dev->dvb = NULL;
1642         goto ret;
1643 }
1644
1645 static inline void prevent_sleep(struct dvb_frontend_ops *ops)
1646 {
1647         ops->set_voltage = NULL;
1648         ops->sleep = NULL;
1649         ops->tuner_ops.sleep = NULL;
1650 }
1651
1652 static int em28xx_dvb_fini(struct em28xx *dev)
1653 {
1654         struct em28xx_dvb *dvb;
1655         struct i2c_client *client;
1656
1657         if (dev->is_audio_only) {
1658                 /* Shouldn't initialize IR for this interface */
1659                 return 0;
1660         }
1661
1662         if (!dev->board.has_dvb) {
1663                 /* This device does not support the extension */
1664                 return 0;
1665         }
1666
1667         if (!dev->dvb)
1668                 return 0;
1669
1670         em28xx_info("Closing DVB extension");
1671
1672         dvb = dev->dvb;
1673         client = dvb->i2c_client_tuner;
1674
1675         em28xx_uninit_usb_xfer(dev, EM28XX_DIGITAL_MODE);
1676
1677         if (dev->disconnected) {
1678                 /* We cannot tell the device to sleep
1679                  * once it has been unplugged. */
1680                 if (dvb->fe[0]) {
1681                         prevent_sleep(&dvb->fe[0]->ops);
1682                         dvb->fe[0]->exit = DVB_FE_DEVICE_REMOVED;
1683                 }
1684                 if (dvb->fe[1]) {
1685                         prevent_sleep(&dvb->fe[1]->ops);
1686                         dvb->fe[1]->exit = DVB_FE_DEVICE_REMOVED;
1687                 }
1688         }
1689
1690         /* remove I2C tuner */
1691         if (client) {
1692                 module_put(client->dev.driver->owner);
1693                 i2c_unregister_device(client);
1694         }
1695
1696         /* remove I2C demod */
1697         client = dvb->i2c_client_demod;
1698         if (client) {
1699                 module_put(client->dev.driver->owner);
1700                 i2c_unregister_device(client);
1701         }
1702
1703         em28xx_unregister_dvb(dvb);
1704         kfree(dvb);
1705         dev->dvb = NULL;
1706         kref_put(&dev->ref, em28xx_free_device);
1707
1708         return 0;
1709 }
1710
1711 static int em28xx_dvb_suspend(struct em28xx *dev)
1712 {
1713         int ret = 0;
1714
1715         if (dev->is_audio_only)
1716                 return 0;
1717
1718         if (!dev->board.has_dvb)
1719                 return 0;
1720
1721         em28xx_info("Suspending DVB extension");
1722         if (dev->dvb) {
1723                 struct em28xx_dvb *dvb = dev->dvb;
1724
1725                 if (dvb->fe[0]) {
1726                         ret = dvb_frontend_suspend(dvb->fe[0]);
1727                         em28xx_info("fe0 suspend %d", ret);
1728                 }
1729                 if (dvb->fe[1]) {
1730                         dvb_frontend_suspend(dvb->fe[1]);
1731                         em28xx_info("fe1 suspend %d", ret);
1732                 }
1733         }
1734
1735         return 0;
1736 }
1737
1738 static int em28xx_dvb_resume(struct em28xx *dev)
1739 {
1740         int ret = 0;
1741
1742         if (dev->is_audio_only)
1743                 return 0;
1744
1745         if (!dev->board.has_dvb)
1746                 return 0;
1747
1748         em28xx_info("Resuming DVB extension");
1749         if (dev->dvb) {
1750                 struct em28xx_dvb *dvb = dev->dvb;
1751
1752                 if (dvb->fe[0]) {
1753                         ret = dvb_frontend_resume(dvb->fe[0]);
1754                         em28xx_info("fe0 resume %d", ret);
1755                 }
1756
1757                 if (dvb->fe[1]) {
1758                         ret = dvb_frontend_resume(dvb->fe[1]);
1759                         em28xx_info("fe1 resume %d", ret);
1760                 }
1761         }
1762
1763         return 0;
1764 }
1765
1766 static struct em28xx_ops dvb_ops = {
1767         .id   = EM28XX_DVB,
1768         .name = "Em28xx dvb Extension",
1769         .init = em28xx_dvb_init,
1770         .fini = em28xx_dvb_fini,
1771         .suspend = em28xx_dvb_suspend,
1772         .resume = em28xx_dvb_resume,
1773 };
1774
1775 static int __init em28xx_dvb_register(void)
1776 {
1777         return em28xx_register_extension(&dvb_ops);
1778 }
1779
1780 static void __exit em28xx_dvb_unregister(void)
1781 {
1782         em28xx_unregister_extension(&dvb_ops);
1783 }
1784
1785 module_init(em28xx_dvb_register);
1786 module_exit(em28xx_dvb_unregister);