kernel/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 "ts2020.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 static unsigned int debug;
  67 module_param(debug, int, 0644);
  68 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
  69
  70 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  71
  72 #define dprintk(level, fmt, arg...) do {                        \
  73 if (debug >= level)                                             \
  74         printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
  75 } while (0)
  76
  77 struct em28xx_dvb {
  78         struct dvb_frontend        *fe[2];
  79
  80         /* feed count management */
  81         struct mutex               lock;
  82         int                        nfeeds;
  83
  84         /* general boilerplate stuff */
  85         struct dvb_adapter         adapter;
  86         struct dvb_demux           demux;
  87         struct dmxdev              dmxdev;
  88         struct dmx_frontend        fe_hw;
  89         struct dmx_frontend        fe_mem;
  90         struct dvb_net             net;
  91
  92         /* Due to DRX-K - probably need changes */
  93         int (*gate_ctrl)(struct dvb_frontend *, int);
  94         struct semaphore      pll_mutex;
  95         bool                    dont_attach_fe1;
  96         int                     lna_gpio;
  97         struct i2c_client       *i2c_client_demod;
  98         struct i2c_client       *i2c_client_tuner;
  99 };
 100
 101 static inline void print_err_status(struct em28xx *dev,
 102                                     int packet, int status)
 103 {
 104         char *errmsg = "Unknown";
 105
 106         switch (status) {
 107         case -ENOENT:
 108                 errmsg = "unlinked synchronuously";
 109                 break;
 110         case -ECONNRESET:
 111                 errmsg = "unlinked asynchronuously";
 112                 break;
 113         case -ENOSR:
 114                 errmsg = "Buffer error (overrun)";
 115                 break;
 116         case -EPIPE:
 117                 errmsg = "Stalled (device not responding)";
 118                 break;
 119         case -EOVERFLOW:
 120                 errmsg = "Babble (bad cable?)";
 121                 break;
 122         case -EPROTO:
 123                 errmsg = "Bit-stuff error (bad cable?)";
 124                 break;
 125         case -EILSEQ:
 126                 errmsg = "CRC/Timeout (could be anything)";
 127                 break;
 128         case -ETIME:
 129                 errmsg = "Device does not respond";
 130                 break;
 131         }
 132         if (packet < 0) {
 133                 dprintk(1, "URB status %d [%s].\n", status, errmsg);
 134         } else {
 135                 dprintk(1, "URB packet %d, status %d [%s].\n",
 136                         packet, status, errmsg);
 137         }
 138 }
 139
 140 static inline int em28xx_dvb_urb_data_copy(struct em28xx *dev, struct urb *urb)
 141 {
 142         int xfer_bulk, num_packets, i;
 143
 144         if (!dev)
 145                 return 0;
 146
 147         if (dev->disconnected)
 148                 return 0;
 149
 150         if (urb->status < 0)
 151                 print_err_status(dev, -1, urb->status);
 152
 153         xfer_bulk = usb_pipebulk(urb->pipe);
 154
 155         if (xfer_bulk) /* bulk */
 156                 num_packets = 1;
 157         else /* isoc */
 158                 num_packets = urb->number_of_packets;
 159
 160         for (i = 0; i < num_packets; i++) {
 161                 if (xfer_bulk) {
 162                         if (urb->status < 0) {
 163                                 print_err_status(dev, i, urb->status);
 164                                 if (urb->status != -EPROTO)
 165                                         continue;
 166                         }
 167                         if (!urb->actual_length)
 168                                 continue;
 169                         dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer,
 170                                          urb->actual_length);
 171                 } else {
 172                         if (urb->iso_frame_desc[i].status < 0) {
 173                                 print_err_status(dev, i,
 174                                                  urb->iso_frame_desc[i].status);
 175                                 if (urb->iso_frame_desc[i].status != -EPROTO)
 176                                         continue;
 177                         }
 178                         if (!urb->iso_frame_desc[i].actual_length)
 179                                 continue;
 180                         dvb_dmx_swfilter(&dev->dvb->demux,
 181                                          urb->transfer_buffer +
 182                                          urb->iso_frame_desc[i].offset,
 183                                          urb->iso_frame_desc[i].actual_length);
 184                 }
 185         }
 186
 187         return 0;
 188 }
 189
 190 static int em28xx_start_streaming(struct em28xx_dvb *dvb)
 191 {
 192         int rc;
 193         struct em28xx_i2c_bus *i2c_bus = dvb->adapter.priv;
 194         struct em28xx *dev = i2c_bus->dev;
 195         int dvb_max_packet_size, packet_multiplier, dvb_alt;
 196
 197         if (dev->dvb_xfer_bulk) {
 198                 if (!dev->dvb_ep_bulk)
 199                         return -ENODEV;
 200                 dvb_max_packet_size = 512; /* USB 2.0 spec */
 201                 packet_multiplier = EM28XX_DVB_BULK_PACKET_MULTIPLIER;
 202                 dvb_alt = 0;
 203         } else { /* isoc */
 204                 if (!dev->dvb_ep_isoc)
 205                         return -ENODEV;
 206                 dvb_max_packet_size = dev->dvb_max_pkt_size_isoc;
 207                 if (dvb_max_packet_size < 0)
 208                         return dvb_max_packet_size;
 209                 packet_multiplier = EM28XX_DVB_NUM_ISOC_PACKETS;
 210                 dvb_alt = dev->dvb_alt_isoc;
 211         }
 212
 213         usb_set_interface(dev->udev, dev->ifnum, dvb_alt);
 214         rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 215         if (rc < 0)
 216                 return rc;
 217
 218         dprintk(1, "Using %d buffers each with %d x %d bytes, alternate %d\n",
 219                 EM28XX_DVB_NUM_BUFS,
 220                 packet_multiplier,
 221                 dvb_max_packet_size, dvb_alt);
 222
 223         return em28xx_init_usb_xfer(dev, EM28XX_DIGITAL_MODE,
 224                                     dev->dvb_xfer_bulk,
 225                                     EM28XX_DVB_NUM_BUFS,
 226                                     dvb_max_packet_size,
 227                                     packet_multiplier,
 228                                     em28xx_dvb_urb_data_copy);
 229 }
 230
 231 static int em28xx_stop_streaming(struct em28xx_dvb *dvb)
 232 {
 233         struct em28xx_i2c_bus *i2c_bus = dvb->adapter.priv;
 234         struct em28xx *dev = i2c_bus->dev;
 235
 236         em28xx_stop_urbs(dev);
 237
 238         return 0;
 239 }
 240
 241 static int em28xx_start_feed(struct dvb_demux_feed *feed)
 242 {
 243         struct dvb_demux *demux  = feed->demux;
 244         struct em28xx_dvb *dvb = demux->priv;
 245         int rc, ret;
 246
 247         if (!demux->dmx.frontend)
 248                 return -EINVAL;
 249
 250         mutex_lock(&dvb->lock);
 251         dvb->nfeeds++;
 252         rc = dvb->nfeeds;
 253
 254         if (dvb->nfeeds == 1) {
 255                 ret = em28xx_start_streaming(dvb);
 256                 if (ret < 0)
 257                         rc = ret;
 258         }
 259
 260         mutex_unlock(&dvb->lock);
 261         return rc;
 262 }
 263
 264 static int em28xx_stop_feed(struct dvb_demux_feed *feed)
 265 {
 266         struct dvb_demux *demux  = feed->demux;
 267         struct em28xx_dvb *dvb = demux->priv;
 268         int err = 0;
 269
 270         mutex_lock(&dvb->lock);
 271         dvb->nfeeds--;
 272
 273         if (0 == dvb->nfeeds)
 274                 err = em28xx_stop_streaming(dvb);
 275
 276         mutex_unlock(&dvb->lock);
 277         return err;
 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         .if_atsc_vsb    = 3600,
 374         .if_atsc_qam    = 3600,
 375 };
 376
 377 static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
 378         .demod_address = (0x1e >> 1),
 379         .no_tuner = 1,
 380         .disable_i2c_gate_ctrl = 1,
 381         .parallel_ts = 1,
 382         .if2 = 45600,
 383 };
 384
 385 static struct drxd_config em28xx_drxd = {
 386         .demod_address = 0x70,
 387         .demod_revision = 0xa2,
 388         .pll_type = DRXD_PLL_NONE,
 389         .clock = 12000,
 390         .insert_rs_byte = 1,
 391         .IF = 42800000,
 392         .disable_i2c_gate_ctrl = 1,
 393 };
 394
 395 static struct drxk_config terratec_h5_drxk = {
 396         .adr = 0x29,
 397         .single_master = 1,
 398         .no_i2c_bridge = 1,
 399         .microcode_name = "dvb-usb-terratec-h5-drxk.fw",
 400         .qam_demod_parameter_count = 2,
 401 };
 402
 403 static struct drxk_config hauppauge_930c_drxk = {
 404         .adr = 0x29,
 405         .single_master = 1,
 406         .no_i2c_bridge = 1,
 407         .microcode_name = "dvb-usb-hauppauge-hvr930c-drxk.fw",
 408         .chunk_size = 56,
 409         .qam_demod_parameter_count = 2,
 410 };
 411
 412 static struct drxk_config terratec_htc_stick_drxk = {
 413         .adr = 0x29,
 414         .single_master = 1,
 415         .no_i2c_bridge = 1,
 416         .microcode_name = "dvb-usb-terratec-htc-stick-drxk.fw",
 417         .chunk_size = 54,
 418         .qam_demod_parameter_count = 2,
 419         /* Required for the antenna_gpio to disable LNA. */
 420         .antenna_dvbt = true,
 421         /* The windows driver uses the same. This will disable LNA. */
 422         .antenna_gpio = 0x6,
 423 };
 424
 425 static struct drxk_config maxmedia_ub425_tc_drxk = {
 426         .adr = 0x29,
 427         .single_master = 1,
 428         .no_i2c_bridge = 1,
 429         .microcode_name = "dvb-demod-drxk-01.fw",
 430         .chunk_size = 62,
 431         .qam_demod_parameter_count = 2,
 432 };
 433
 434 static struct drxk_config pctv_520e_drxk = {
 435         .adr = 0x29,
 436         .single_master = 1,
 437         .microcode_name = "dvb-demod-drxk-pctv.fw",
 438         .qam_demod_parameter_count = 2,
 439         .chunk_size = 58,
 440         .antenna_dvbt = true, /* disable LNA */
 441         .antenna_gpio = (1 << 2), /* disable LNA */
 442 };
 443
 444 static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
 445 {
 446         struct em28xx_dvb *dvb = fe->sec_priv;
 447         int status;
 448
 449         if (!dvb)
 450                 return -EINVAL;
 451
 452         if (enable) {
 453                 down(&dvb->pll_mutex);
 454                 status = dvb->gate_ctrl(fe, 1);
 455         } else {
 456                 status = dvb->gate_ctrl(fe, 0);
 457                 up(&dvb->pll_mutex);
 458         }
 459         return status;
 460 }
 461
 462 static void hauppauge_hvr930c_init(struct em28xx *dev)
 463 {
 464         int i;
 465
 466         struct em28xx_reg_seq hauppauge_hvr930c_init[] = {
 467                 {EM2874_R80_GPIO_P0_CTRL,       0xff,   0xff,   0x65},
 468                 {EM2874_R80_GPIO_P0_CTRL,       0xfb,   0xff,   0x32},
 469                 {EM2874_R80_GPIO_P0_CTRL,       0xff,   0xff,   0xb8},
 470                 {       -1,                     -1,     -1,     -1},
 471         };
 472         struct em28xx_reg_seq hauppauge_hvr930c_end[] = {
 473                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x01},
 474                 {EM2874_R80_GPIO_P0_CTRL,       0xaf,   0xff,   0x65},
 475                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x76},
 476                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x01},
 477                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x0b},
 478                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x40},
 479
 480                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x65},
 481                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x65},
 482                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x0b},
 483                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x65},
 484
 485                 {       -1,                     -1,     -1,     -1},
 486         };
 487
 488         struct {
 489                 unsigned char r[4];
 490                 int len;
 491         } regs[] = {
 492                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 493                 {{ 0x01, 0x02 }, 2},
 494                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 495                 {{ 0x01, 0x00 }, 2},
 496                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 497                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 498                 {{ 0x01, 0x00 }, 2},
 499                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 500                 {{ 0x04, 0x00 }, 2},
 501                 {{ 0x00, 0x04 }, 2},
 502                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 503                 {{ 0x04, 0x14 }, 2},
 504                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 505         };
 506
 507         em28xx_gpio_set(dev, hauppauge_hvr930c_init);
 508         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 509         msleep(10);
 510         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 511         msleep(10);
 512
 513         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 514
 515         for (i = 0; i < ARRAY_SIZE(regs); i++)
 516                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 517         em28xx_gpio_set(dev, hauppauge_hvr930c_end);
 518
 519         msleep(100);
 520
 521         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 522         msleep(30);
 523
 524         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 525         msleep(10);
 526
 527 }
 528
 529 static void terratec_h5_init(struct em28xx *dev)
 530 {
 531         int i;
 532         struct em28xx_reg_seq terratec_h5_init[] = {
 533                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 534                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 535                 {EM2874_R80_GPIO_P0_CTRL,       0xf2,   0xff,   50},
 536                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 537                 {       -1,                     -1,     -1,     -1},
 538         };
 539         struct em28xx_reg_seq terratec_h5_end[] = {
 540                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 541                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   50},
 542                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 543                 {       -1,                     -1,     -1,     -1},
 544         };
 545         struct {
 546                 unsigned char r[4];
 547                 int len;
 548         } regs[] = {
 549                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 550                 {{ 0x01, 0x02 }, 2},
 551                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 552                 {{ 0x01, 0x00 }, 2},
 553                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 554                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 555                 {{ 0x01, 0x00 }, 2},
 556                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 557                 {{ 0x04, 0x00 }, 2},
 558                 {{ 0x00, 0x04 }, 2},
 559                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 560                 {{ 0x04, 0x14 }, 2},
 561                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 562         };
 563
 564         em28xx_gpio_set(dev, terratec_h5_init);
 565         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 566         msleep(10);
 567         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 568         msleep(10);
 569
 570         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 571
 572         for (i = 0; i < ARRAY_SIZE(regs); i++)
 573                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 574         em28xx_gpio_set(dev, terratec_h5_end);
 575 };
 576
 577 static void terratec_htc_stick_init(struct em28xx *dev)
 578 {
 579         int i;
 580
 581         /*
 582          * GPIO configuration:
 583          * 0xff: unknown (does not affect DVB-T).
 584          * 0xf6: DRX-K (demodulator).
 585          * 0xe6: unknown (does not affect DVB-T).
 586          * 0xb6: unknown (does not affect DVB-T).
 587          */
 588         struct em28xx_reg_seq terratec_htc_stick_init[] = {
 589                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 590                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 591                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   50},
 592                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 593                 {       -1,                     -1,     -1,     -1},
 594         };
 595         struct em28xx_reg_seq terratec_htc_stick_end[] = {
 596                 {EM2874_R80_GPIO_P0_CTRL,       0xb6,   0xff,   100},
 597                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   50},
 598                 {       -1,                     -1,     -1,     -1},
 599         };
 600
 601         /*
 602          * Init the analog decoder (not yet supported), but
 603          * it's probably still a good idea.
 604          */
 605         struct {
 606                 unsigned char r[4];
 607                 int len;
 608         } regs[] = {
 609                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 610                 {{ 0x01, 0x02 }, 2},
 611                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 612                 {{ 0x01, 0x00 }, 2},
 613                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 614         };
 615
 616         em28xx_gpio_set(dev, terratec_htc_stick_init);
 617
 618         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 619         msleep(10);
 620         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 621         msleep(10);
 622
 623         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 624
 625         for (i = 0; i < ARRAY_SIZE(regs); i++)
 626                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 627
 628         em28xx_gpio_set(dev, terratec_htc_stick_end);
 629 };
 630
 631 static void terratec_htc_usb_xs_init(struct em28xx *dev)
 632 {
 633         int i;
 634
 635         struct em28xx_reg_seq terratec_htc_usb_xs_init[] = {
 636                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 637                 {EM2874_R80_GPIO_P0_CTRL,       0xb2,   0xff,   100},
 638                 {EM2874_R80_GPIO_P0_CTRL,       0xb2,   0xff,   50},
 639                 {EM2874_R80_GPIO_P0_CTRL,       0xb6,   0xff,   100},
 640                 {       -1,                     -1,     -1,     -1},
 641         };
 642         struct em28xx_reg_seq terratec_htc_usb_xs_end[] = {
 643                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   100},
 644                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   50},
 645                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 646                 {       -1,                     -1,     -1,     -1},
 647         };
 648
 649         /*
 650          * Init the analog decoder (not yet supported), but
 651          * it's probably still a good idea.
 652          */
 653         struct {
 654                 unsigned char r[4];
 655                 int len;
 656         } regs[] = {
 657                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 658                 {{ 0x01, 0x02 }, 2},
 659                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 660                 {{ 0x01, 0x00 }, 2},
 661                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 662                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 663                 {{ 0x01, 0x00 }, 2},
 664                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 665                 {{ 0x04, 0x00 }, 2},
 666                 {{ 0x00, 0x04 }, 2},
 667                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 668                 {{ 0x04, 0x14 }, 2},
 669                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 670         };
 671
 672         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 673
 674         em28xx_gpio_set(dev, terratec_htc_usb_xs_init);
 675
 676         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 677         msleep(10);
 678         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 679         msleep(10);
 680
 681         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 682
 683         for (i = 0; i < ARRAY_SIZE(regs); i++)
 684                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 685
 686         em28xx_gpio_set(dev, terratec_htc_usb_xs_end);
 687 };
 688
 689 static void pctv_520e_init(struct em28xx *dev)
 690 {
 691         /*
 692          * Init AVF4910B analog decoder. Looks like I2C traffic to
 693          * digital demodulator and tuner are routed via AVF4910B.
 694          */
 695         int i;
 696         struct {
 697                 unsigned char r[4];
 698                 int len;
 699         } regs[] = {
 700                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 701                 {{ 0x01, 0x02 }, 2},
 702                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 703                 {{ 0x01, 0x00 }, 2},
 704                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 705                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 706                 {{ 0x01, 0x00 }, 2},
 707                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 708         };
 709
 710         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1; /* 0x41 */
 711
 712         for (i = 0; i < ARRAY_SIZE(regs); i++)
 713                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 714 };
 715
 716 static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe)
 717 {
 718         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 719         struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
 720         struct em28xx *dev = i2c_bus->dev;
 721 #ifdef CONFIG_GPIOLIB
 722         struct em28xx_dvb *dvb = dev->dvb;
 723         int ret;
 724         unsigned long flags;
 725
 726         if (c->lna == 1)
 727                 flags = GPIOF_OUT_INIT_HIGH; /* enable LNA */
 728         else
 729                 flags = GPIOF_OUT_INIT_LOW; /* disable LNA */
 730
 731         ret = gpio_request_one(dvb->lna_gpio, flags, NULL);
 732         if (ret)
 733                 em28xx_errdev("gpio request failed %d\n", ret);
 734         else
 735                 gpio_free(dvb->lna_gpio);
 736
 737         return ret;
 738 #else
 739         dev_warn(&dev->udev->dev, "%s: LNA control is disabled (lna=%u)\n",
 740                  KBUILD_MODNAME, c->lna);
 741         return 0;
 742 #endif
 743 }
 744
 745 static int em28xx_pctv_292e_set_lna(struct dvb_frontend *fe)
 746 {
 747         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 748         struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
 749         struct em28xx *dev = i2c_bus->dev;
 750         u8 lna;
 751
 752         if (c->lna == 1)
 753                 lna = 0x01;
 754         else
 755                 lna = 0x00;
 756
 757         return em28xx_write_reg_bits(dev, EM2874_R80_GPIO_P0_CTRL, lna, 0x01);
 758 }
 759
 760 static int em28xx_mt352_terratec_xs_init(struct dvb_frontend *fe)
 761 {
 762         /* Values extracted from a USB trace of the Terratec Windows driver */
 763         static u8 clock_config[]   = { CLOCK_CTL,  0x38, 0x2c };
 764         static u8 reset[]          = { RESET,      0x80 };
 765         static u8 adc_ctl_1_cfg[]  = { ADC_CTL_1,  0x40 };
 766         static u8 agc_cfg[]        = { AGC_TARGET, 0x28, 0xa0 };
 767         static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
 768         static u8 rs_err_cfg[]     = { RS_ERR_PER_1, 0x00, 0x4d };
 769         static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
 770         static u8 trl_nom_cfg[]    = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
 771         static u8 tps_given_cfg[]  = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
 772         static u8 tuner_go[]       = { TUNER_GO, 0x01};
 773
 774         mt352_write(fe, clock_config,   sizeof(clock_config));
 775         udelay(200);
 776         mt352_write(fe, reset,          sizeof(reset));
 777         mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));
 778         mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
 779         mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
 780         mt352_write(fe, rs_err_cfg,     sizeof(rs_err_cfg));
 781         mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
 782         mt352_write(fe, trl_nom_cfg,    sizeof(trl_nom_cfg));
 783         mt352_write(fe, tps_given_cfg,  sizeof(tps_given_cfg));
 784         mt352_write(fe, tuner_go,       sizeof(tuner_go));
 785         return 0;
 786 }
 787
 788 static struct mt352_config terratec_xs_mt352_cfg = {
 789         .demod_address = (0x1e >> 1),
 790         .no_tuner = 1,
 791         .if2 = 45600,
 792         .demod_init = em28xx_mt352_terratec_xs_init,
 793 };
 794
 795 static struct tda10023_config em28xx_tda10023_config = {
 796         .demod_address = 0x0c,
 797         .invert = 1,
 798 };
 799
 800 static struct cxd2820r_config em28xx_cxd2820r_config = {
 801         .i2c_address = (0xd8 >> 1),
 802         .ts_mode = CXD2820R_TS_SERIAL,
 803 };
 804
 805 static struct tda18271_config em28xx_cxd2820r_tda18271_config = {
 806         .output_opt = TDA18271_OUTPUT_LT_OFF,
 807         .gate = TDA18271_GATE_DIGITAL,
 808 };
 809
 810 static const struct tda10071_config em28xx_tda10071_config = {
 811         .demod_i2c_addr = 0x55, /* (0xaa >> 1) */
 812         .tuner_i2c_addr = 0x14,
 813         .i2c_wr_max = 64,
 814         .ts_mode = TDA10071_TS_SERIAL,
 815         .spec_inv = 0,
 816         .xtal = 40444000, /* 40.444 MHz */
 817         .pll_multiplier = 20,
 818 };
 819
 820 static const struct a8293_config em28xx_a8293_config = {
 821         .i2c_addr = 0x08, /* (0x10 >> 1) */
 822 };
 823
 824 static struct zl10353_config em28xx_zl10353_no_i2c_gate_dev = {
 825         .demod_address = (0x1e >> 1),
 826         .disable_i2c_gate_ctrl = 1,
 827         .no_tuner = 1,
 828         .parallel_ts = 1,
 829 };
 830
 831 static struct qt1010_config em28xx_qt1010_config = {
 832         .i2c_address = 0x62
 833 };
 834
 835 static const struct mb86a20s_config c3tech_duo_mb86a20s_config = {
 836         .demod_address = 0x10,
 837         .is_serial = true,
 838 };
 839
 840 static struct tda18271_std_map mb86a20s_tda18271_config = {
 841         .dvbt_6   = { .if_freq = 4000, .agc_mode = 3, .std = 4,
 842                       .if_lvl = 1, .rfagc_top = 0x37, },
 843 };
 844
 845 static struct tda18271_config c3tech_duo_tda18271_config = {
 846         .std_map = &mb86a20s_tda18271_config,
 847         .gate    = TDA18271_GATE_DIGITAL,
 848         .small_i2c = TDA18271_03_BYTE_CHUNK_INIT,
 849 };
 850
 851 static const struct m88ds3103_config pctv_461e_m88ds3103_config = {
 852         .i2c_addr = 0x68,
 853         .clock = 27000000,
 854         .i2c_wr_max = 33,
 855         .clock_out = 0,
 856         .ts_mode = M88DS3103_TS_PARALLEL,
 857         .ts_clk = 16000,
 858         .ts_clk_pol = 1,
 859         .agc = 0x99,
 860 };
 861
 862 static struct tda18271_std_map drx_j_std_map = {
 863         .atsc_6   = { .if_freq = 5000, .agc_mode = 3, .std = 0, .if_lvl = 1,
 864                       .rfagc_top = 0x37, },
 865         .qam_6    = { .if_freq = 5380, .agc_mode = 3, .std = 3, .if_lvl = 1,
 866                       .rfagc_top = 0x37, },
 867 };
 868
 869 static struct tda18271_config pinnacle_80e_dvb_config = {
 870         .std_map = &drx_j_std_map,
 871         .gate    = TDA18271_GATE_DIGITAL,
 872         .role    = TDA18271_MASTER,
 873 };
 874
 875 /* ------------------------------------------------------------------ */
 876
 877 static int em28xx_attach_xc3028(u8 addr, struct em28xx *dev)
 878 {
 879         struct dvb_frontend *fe;
 880         struct xc2028_config cfg;
 881         struct xc2028_ctrl ctl;
 882
 883         memset(&cfg, 0, sizeof(cfg));
 884         cfg.i2c_adap  = &dev->i2c_adap[dev->def_i2c_bus];
 885         cfg.i2c_addr  = addr;
 886
 887         memset(&ctl, 0, sizeof(ctl));
 888         em28xx_setup_xc3028(dev, &ctl);
 889         cfg.ctrl  = &ctl;
 890
 891         if (!dev->dvb->fe[0]) {
 892                 em28xx_errdev("/2: dvb frontend not attached. "
 893                                 "Can't attach xc3028\n");
 894                 return -EINVAL;
 895         }
 896
 897         fe = dvb_attach(xc2028_attach, dev->dvb->fe[0], &cfg);
 898         if (!fe) {
 899                 em28xx_errdev("/2: xc3028 attach failed\n");
 900                 dvb_frontend_detach(dev->dvb->fe[0]);
 901                 dev->dvb->fe[0] = NULL;
 902                 return -EINVAL;
 903         }
 904
 905         em28xx_info("%s/2: xc3028 attached\n", dev->name);
 906
 907         return 0;
 908 }
 909
 910 /* ------------------------------------------------------------------ */
 911
 912 static int em28xx_register_dvb(struct em28xx_dvb *dvb, struct module *module,
 913                                struct em28xx *dev, struct device *device)
 914 {
 915         int result;
 916
 917         mutex_init(&dvb->lock);
 918
 919         /* register adapter */
 920         result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
 921                                       adapter_nr);
 922         if (result < 0) {
 923                 printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
 924                        dev->name, result);
 925                 goto fail_adapter;
 926         }
 927
 928         /* Ensure all frontends negotiate bus access */
 929         dvb->fe[0]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 930         if (dvb->fe[1])
 931                 dvb->fe[1]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 932
 933         dvb->adapter.priv = &dev->i2c_bus[dev->def_i2c_bus];
 934
 935         /* register frontend */
 936         result = dvb_register_frontend(&dvb->adapter, dvb->fe[0]);
 937         if (result < 0) {
 938                 printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
 939                        dev->name, result);
 940                 goto fail_frontend0;
 941         }
 942
 943         /* register 2nd frontend */
 944         if (dvb->fe[1]) {
 945                 result = dvb_register_frontend(&dvb->adapter, dvb->fe[1]);
 946                 if (result < 0) {
 947                         printk(KERN_WARNING "%s: 2nd dvb_register_frontend failed (errno = %d)\n",
 948                                dev->name, result);
 949                         goto fail_frontend1;
 950                 }
 951         }
 952
 953         /* register demux stuff */
 954         dvb->demux.dmx.capabilities =
 955                 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 956                 DMX_MEMORY_BASED_FILTERING;
 957         dvb->demux.priv       = dvb;
 958         dvb->demux.filternum  = 256;
 959         dvb->demux.feednum    = 256;
 960         dvb->demux.start_feed = em28xx_start_feed;
 961         dvb->demux.stop_feed  = em28xx_stop_feed;
 962
 963         result = dvb_dmx_init(&dvb->demux);
 964         if (result < 0) {
 965                 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
 966                        dev->name, result);
 967                 goto fail_dmx;
 968         }
 969
 970         dvb->dmxdev.filternum    = 256;
 971         dvb->dmxdev.demux        = &dvb->demux.dmx;
 972         dvb->dmxdev.capabilities = 0;
 973         result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
 974         if (result < 0) {
 975                 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
 976                        dev->name, result);
 977                 goto fail_dmxdev;
 978         }
 979
 980         dvb->fe_hw.source = DMX_FRONTEND_0;
 981         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 982         if (result < 0) {
 983                 printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
 984                        dev->name, result);
 985                 goto fail_fe_hw;
 986         }
 987
 988         dvb->fe_mem.source = DMX_MEMORY_FE;
 989         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 990         if (result < 0) {
 991                 printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
 992                        dev->name, result);
 993                 goto fail_fe_mem;
 994         }
 995
 996         result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 997         if (result < 0) {
 998                 printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
 999                        dev->name, result);
1000                 goto fail_fe_conn;
1001         }
1002
1003         /* register network adapter */
1004         dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
1005         return 0;
1006
1007 fail_fe_conn:
1008         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
1009 fail_fe_mem:
1010         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
1011 fail_fe_hw:
1012         dvb_dmxdev_release(&dvb->dmxdev);
1013 fail_dmxdev:
1014         dvb_dmx_release(&dvb->demux);
1015 fail_dmx:
1016         if (dvb->fe[1])
1017                 dvb_unregister_frontend(dvb->fe[1]);
1018         dvb_unregister_frontend(dvb->fe[0]);
1019 fail_frontend1:
1020         if (dvb->fe[1])
1021                 dvb_frontend_detach(dvb->fe[1]);
1022 fail_frontend0:
1023         dvb_frontend_detach(dvb->fe[0]);
1024         dvb_unregister_adapter(&dvb->adapter);
1025 fail_adapter:
1026         return result;
1027 }
1028
1029 static void em28xx_unregister_dvb(struct em28xx_dvb *dvb)
1030 {
1031         dvb_net_release(&dvb->net);
1032         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
1033         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
1034         dvb_dmxdev_release(&dvb->dmxdev);
1035         dvb_dmx_release(&dvb->demux);
1036         if (dvb->fe[1])
1037                 dvb_unregister_frontend(dvb->fe[1]);
1038         dvb_unregister_frontend(dvb->fe[0]);
1039         if (dvb->fe[1] && !dvb->dont_attach_fe1)
1040                 dvb_frontend_detach(dvb->fe[1]);
1041         dvb_frontend_detach(dvb->fe[0]);
1042         dvb_unregister_adapter(&dvb->adapter);
1043 }
1044
1045 static int em28xx_dvb_init(struct em28xx *dev)
1046 {
1047         int result = 0;
1048         struct em28xx_dvb *dvb;
1049
1050         if (dev->is_audio_only) {
1051                 /* Shouldn't initialize IR for this interface */
1052                 return 0;
1053         }
1054
1055         if (!dev->board.has_dvb) {
1056                 /* This device does not support the extension */
1057                 return 0;
1058         }
1059
1060         em28xx_info("Binding DVB extension\n");
1061
1062         dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
1063         if (dvb == NULL) {
1064                 em28xx_info("em28xx_dvb: memory allocation failed\n");
1065                 return -ENOMEM;
1066         }
1067         dev->dvb = dvb;
1068         dvb->fe[0] = dvb->fe[1] = NULL;
1069
1070         /* pre-allocate DVB usb transfer buffers */
1071         if (dev->dvb_xfer_bulk) {
1072                 result = em28xx_alloc_urbs(dev, EM28XX_DIGITAL_MODE,
1073                                            dev->dvb_xfer_bulk,
1074                                            EM28XX_DVB_NUM_BUFS,
1075                                            512,
1076                                            EM28XX_DVB_BULK_PACKET_MULTIPLIER);
1077         } else {
1078                 result = em28xx_alloc_urbs(dev, EM28XX_DIGITAL_MODE,
1079                                            dev->dvb_xfer_bulk,
1080                                            EM28XX_DVB_NUM_BUFS,
1081                                            dev->dvb_max_pkt_size_isoc,
1082                                            EM28XX_DVB_NUM_ISOC_PACKETS);
1083         }
1084         if (result) {
1085                 em28xx_errdev("em28xx_dvb: failed to pre-allocate USB transfer buffers for DVB.\n");
1086                 kfree(dvb);
1087                 dev->dvb = NULL;
1088                 return result;
1089         }
1090
1091         mutex_lock(&dev->lock);
1092         em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
1093         /* init frontend */
1094         switch (dev->model) {
1095         case EM2874_BOARD_LEADERSHIP_ISDBT:
1096                 dvb->fe[0] = dvb_attach(s921_attach,
1097                                 &sharp_isdbt, &dev->i2c_adap[dev->def_i2c_bus]);
1098
1099                 if (!dvb->fe[0]) {
1100                         result = -EINVAL;
1101                         goto out_free;
1102                 }
1103
1104                 break;
1105         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
1106         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
1107         case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
1108         case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
1109                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
1110                                            &em2880_lgdt3303_dev,
1111                                            &dev->i2c_adap[dev->def_i2c_bus]);
1112                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1113                         result = -EINVAL;
1114                         goto out_free;
1115                 }
1116                 break;
1117         case EM2880_BOARD_KWORLD_DVB_310U:
1118                 dvb->fe[0] = dvb_attach(zl10353_attach,
1119                                            &em28xx_zl10353_with_xc3028,
1120                                            &dev->i2c_adap[dev->def_i2c_bus]);
1121                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1122                         result = -EINVAL;
1123                         goto out_free;
1124                 }
1125                 break;
1126         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
1127         case EM2882_BOARD_TERRATEC_HYBRID_XS:
1128         case EM2880_BOARD_EMPIRE_DUAL_TV:
1129                 dvb->fe[0] = dvb_attach(zl10353_attach,
1130                                            &em28xx_zl10353_xc3028_no_i2c_gate,
1131                                            &dev->i2c_adap[dev->def_i2c_bus]);
1132                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1133                         result = -EINVAL;
1134                         goto out_free;
1135                 }
1136                 break;
1137         case EM2880_BOARD_TERRATEC_HYBRID_XS:
1138         case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
1139         case EM2881_BOARD_PINNACLE_HYBRID_PRO:
1140         case EM2882_BOARD_DIKOM_DK300:
1141         case EM2882_BOARD_KWORLD_VS_DVBT:
1142                 dvb->fe[0] = dvb_attach(zl10353_attach,
1143                                            &em28xx_zl10353_xc3028_no_i2c_gate,
1144                                            &dev->i2c_adap[dev->def_i2c_bus]);
1145                 if (dvb->fe[0] == NULL) {
1146                         /* This board could have either a zl10353 or a mt352.
1147                            If the chip id isn't for zl10353, try mt352 */
1148                         dvb->fe[0] = dvb_attach(mt352_attach,
1149                                                    &terratec_xs_mt352_cfg,
1150                                                    &dev->i2c_adap[dev->def_i2c_bus]);
1151                 }
1152
1153                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1154                         result = -EINVAL;
1155                         goto out_free;
1156                 }
1157                 break;
1158         case EM2870_BOARD_KWORLD_355U:
1159                 dvb->fe[0] = dvb_attach(zl10353_attach,
1160                                            &em28xx_zl10353_no_i2c_gate_dev,
1161                                            &dev->i2c_adap[dev->def_i2c_bus]);
1162                 if (dvb->fe[0] != NULL)
1163                         dvb_attach(qt1010_attach, dvb->fe[0],
1164                                    &dev->i2c_adap[dev->def_i2c_bus], &em28xx_qt1010_config);
1165                 break;
1166         case EM2883_BOARD_KWORLD_HYBRID_330U:
1167         case EM2882_BOARD_EVGA_INDTUBE:
1168                 dvb->fe[0] = dvb_attach(s5h1409_attach,
1169                                            &em28xx_s5h1409_with_xc3028,
1170                                            &dev->i2c_adap[dev->def_i2c_bus]);
1171                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1172                         result = -EINVAL;
1173                         goto out_free;
1174                 }
1175                 break;
1176         case EM2882_BOARD_KWORLD_ATSC_315U:
1177                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
1178                                            &em2880_lgdt3303_dev,
1179                                            &dev->i2c_adap[dev->def_i2c_bus]);
1180                 if (dvb->fe[0] != NULL) {
1181                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1182                                         &dev->i2c_adap[dev->def_i2c_bus],
1183                                         0x61, TUNER_THOMSON_DTT761X)) {
1184                                 result = -EINVAL;
1185                                 goto out_free;
1186                         }
1187                 }
1188                 break;
1189         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
1190         case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
1191                 dvb->fe[0] = dvb_attach(drxd_attach, &em28xx_drxd, NULL,
1192                                            &dev->i2c_adap[dev->def_i2c_bus], &dev->udev->dev);
1193                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1194                         result = -EINVAL;
1195                         goto out_free;
1196                 }
1197                 break;
1198         case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
1199                 /* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
1200                 dvb->fe[0] = dvb_attach(tda10023_attach,
1201                         &em28xx_tda10023_config,
1202                         &dev->i2c_adap[dev->def_i2c_bus], 0x48);
1203                 if (dvb->fe[0]) {
1204                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1205                                         &dev->i2c_adap[dev->def_i2c_bus],
1206                                         0x60, TUNER_PHILIPS_CU1216L)) {
1207                                 result = -EINVAL;
1208                                 goto out_free;
1209                         }
1210                 }
1211                 break;
1212         case EM2870_BOARD_KWORLD_A340:
1213                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1214                                            &em2870_lgdt3304_dev,
1215                                            &dev->i2c_adap[dev->def_i2c_bus]);
1216                 if (!dvb->fe[0]) {
1217                         result = -EINVAL;
1218                         goto out_free;
1219                 }
1220                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1221                                 &dev->i2c_adap[dev->def_i2c_bus],
1222                         &kworld_a340_config)) {
1223                                 dvb_frontend_detach(dvb->fe[0]);
1224                                 result = -EINVAL;
1225                                 goto out_free;
1226                 }
1227                 break;
1228         case EM28174_BOARD_PCTV_290E:
1229                 /* set default GPIO0 for LNA, used if GPIOLIB is undefined */
1230                 dvb->lna_gpio = CXD2820R_GPIO_E | CXD2820R_GPIO_O |
1231                                 CXD2820R_GPIO_L;
1232                 dvb->fe[0] = dvb_attach(cxd2820r_attach,
1233                                         &em28xx_cxd2820r_config,
1234                                         &dev->i2c_adap[dev->def_i2c_bus],
1235                                         &dvb->lna_gpio);
1236                 if (dvb->fe[0]) {
1237                         /* FE 0 attach tuner */
1238                         if (!dvb_attach(tda18271_attach,
1239                                         dvb->fe[0],
1240                                         0x60,
1241                                         &dev->i2c_adap[dev->def_i2c_bus],
1242                                         &em28xx_cxd2820r_tda18271_config)) {
1243
1244                                 dvb_frontend_detach(dvb->fe[0]);
1245                                 result = -EINVAL;
1246                                 goto out_free;
1247                         }
1248
1249 #ifdef CONFIG_GPIOLIB
1250                         /* enable LNA for DVB-T, DVB-T2 and DVB-C */
1251                         result = gpio_request_one(dvb->lna_gpio,
1252                                                   GPIOF_OUT_INIT_LOW, NULL);
1253                         if (result)
1254                                 em28xx_errdev("gpio request failed %d\n",
1255                                               result);
1256                         else
1257                                 gpio_free(dvb->lna_gpio);
1258
1259                         result = 0; /* continue even set LNA fails */
1260 #endif
1261                         dvb->fe[0]->ops.set_lna = em28xx_pctv_290e_set_lna;
1262                 }
1263
1264                 break;
1265         case EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C:
1266         {
1267                 struct xc5000_config cfg;
1268
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_ELGATO_EYETV_HYBRID_2008:
1384         case EM2884_BOARD_CINERGY_HTC_STICK:
1385                 terratec_htc_stick_init(dev);
1386
1387                 /* attach demodulator */
1388                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1389                                         &dev->i2c_adap[dev->def_i2c_bus]);
1390                 if (!dvb->fe[0]) {
1391                         result = -EINVAL;
1392                         goto out_free;
1393                 }
1394
1395                 /* Attach the demodulator. */
1396                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1397                                 &dev->i2c_adap[dev->def_i2c_bus],
1398                                 &em28xx_cxd2820r_tda18271_config)) {
1399                         result = -EINVAL;
1400                         goto out_free;
1401                 }
1402                 break;
1403         case EM2884_BOARD_TERRATEC_HTC_USB_XS:
1404                 terratec_htc_usb_xs_init(dev);
1405
1406                 /* attach demodulator */
1407                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1408                                         &dev->i2c_adap[dev->def_i2c_bus]);
1409                 if (!dvb->fe[0]) {
1410                         result = -EINVAL;
1411                         goto out_free;
1412                 }
1413
1414                 /* Attach the demodulator. */
1415                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1416                                 &dev->i2c_adap[dev->def_i2c_bus],
1417                                 &em28xx_cxd2820r_tda18271_config)) {
1418                         result = -EINVAL;
1419                         goto out_free;
1420                 }
1421                 break;
1422         case EM2874_BOARD_KWORLD_UB435Q_V2:
1423                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1424                                         &em2874_lgdt3305_dev,
1425                                         &dev->i2c_adap[dev->def_i2c_bus]);
1426                 if (!dvb->fe[0]) {
1427                         result = -EINVAL;
1428                         goto out_free;
1429                 }
1430
1431                 /* Attach the demodulator. */
1432                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1433                                 &dev->i2c_adap[dev->def_i2c_bus],
1434                                 &kworld_ub435q_v2_config)) {
1435                         result = -EINVAL;
1436                         goto out_free;
1437                 }
1438                 break;
1439         case EM2874_BOARD_KWORLD_UB435Q_V3:
1440         {
1441                 struct i2c_client *client;
1442                 struct i2c_adapter *adapter = &dev->i2c_adap[dev->def_i2c_bus];
1443                 struct i2c_board_info board_info = {
1444                         .type = "tda18212",
1445                         .addr = 0x60,
1446                         .platform_data = &kworld_ub435q_v3_config,
1447                 };
1448
1449                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1450                                         &em2874_lgdt3305_nogate_dev,
1451                                         &dev->i2c_adap[dev->def_i2c_bus]);
1452                 if (!dvb->fe[0]) {
1453                         result = -EINVAL;
1454                         goto out_free;
1455                 }
1456
1457                 /* attach tuner */
1458                 kworld_ub435q_v3_config.fe = dvb->fe[0];
1459                 request_module("tda18212");
1460                 client = i2c_new_device(adapter, &board_info);
1461                 if (client == NULL || client->dev.driver == NULL) {
1462                         dvb_frontend_detach(dvb->fe[0]);
1463                         result = -ENODEV;
1464                         goto out_free;
1465                 }
1466
1467                 if (!try_module_get(client->dev.driver->owner)) {
1468                         i2c_unregister_device(client);
1469                         dvb_frontend_detach(dvb->fe[0]);
1470                         result = -ENODEV;
1471                         goto out_free;
1472                 }
1473
1474                 dvb->i2c_client_tuner = client;
1475                 break;
1476         }
1477         case EM2874_BOARD_PCTV_HD_MINI_80E:
1478                 dvb->fe[0] = dvb_attach(drx39xxj_attach, &dev->i2c_adap[dev->def_i2c_bus]);
1479                 if (dvb->fe[0] != NULL) {
1480                         dvb->fe[0] = dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1481                                                 &dev->i2c_adap[dev->def_i2c_bus],
1482                                                 &pinnacle_80e_dvb_config);
1483                         if (!dvb->fe[0]) {
1484                                 result = -EINVAL;
1485                                 goto out_free;
1486                         }
1487                 }
1488                 break;
1489         case EM28178_BOARD_PCTV_461E:
1490                 {
1491                         /* demod I2C adapter */
1492                         struct i2c_adapter *i2c_adapter;
1493                         struct i2c_client *client;
1494                         struct i2c_board_info info;
1495                         struct ts2020_config ts2020_config = {
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                         ts2020_config.fe = dvb->fe[0];
1511                         strlcpy(info.type, "ts2022", I2C_NAME_SIZE);
1512                         info.addr = 0x60;
1513                         info.platform_data = &ts2020_config;
1514                         request_module("ts2020");
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                         memset(&si2168_config, 0, sizeof(si2168_config));
1557                         si2168_config.i2c_adapter = &adapter;
1558                         si2168_config.fe = &dvb->fe[0];
1559                         si2168_config.ts_mode = SI2168_TS_PARALLEL;
1560                         memset(&info, 0, sizeof(struct i2c_board_info));
1561                         strlcpy(info.type, "si2168", I2C_NAME_SIZE);
1562                         info.addr = 0x64;
1563                         info.platform_data = &si2168_config;
1564                         request_module(info.type);
1565                         client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info);
1566                         if (client == NULL || client->dev.driver == NULL) {
1567                                 result = -ENODEV;
1568                                 goto out_free;
1569                         }
1570
1571                         if (!try_module_get(client->dev.driver->owner)) {
1572                                 i2c_unregister_device(client);
1573                                 result = -ENODEV;
1574                                 goto out_free;
1575                         }
1576
1577                         dvb->i2c_client_demod = client;
1578
1579                         /* attach tuner */
1580                         memset(&si2157_config, 0, sizeof(si2157_config));
1581                         si2157_config.fe = dvb->fe[0];
1582                         memset(&info, 0, sizeof(struct i2c_board_info));
1583                         strlcpy(info.type, "si2157", I2C_NAME_SIZE);
1584                         info.addr = 0x60;
1585                         info.platform_data = &si2157_config;
1586                         request_module(info.type);
1587                         client = i2c_new_device(adapter, &info);
1588                         if (client == NULL || client->dev.driver == NULL) {
1589                                 module_put(dvb->i2c_client_demod->dev.driver->owner);
1590                                 i2c_unregister_device(dvb->i2c_client_demod);
1591                                 result = -ENODEV;
1592                                 goto out_free;
1593                         }
1594
1595                         if (!try_module_get(client->dev.driver->owner)) {
1596                                 i2c_unregister_device(client);
1597                                 module_put(dvb->i2c_client_demod->dev.driver->owner);
1598                                 i2c_unregister_device(dvb->i2c_client_demod);
1599                                 result = -ENODEV;
1600                                 goto out_free;
1601                         }
1602
1603                         dvb->i2c_client_tuner = client;
1604                         dvb->fe[0]->ops.set_lna = em28xx_pctv_292e_set_lna;
1605                 }
1606                 break;
1607         case EM28178_BOARD_TERRATEC_T2_STICK_HD:
1608                 {
1609                         struct i2c_adapter *adapter;
1610                         struct i2c_client *client;
1611                         struct i2c_board_info info;
1612                         struct si2168_config si2168_config;
1613                         struct si2157_config si2157_config;
1614
1615                         /* attach demod */
1616                         memset(&si2168_config, 0, sizeof(si2168_config));
1617                         si2168_config.i2c_adapter = &adapter;
1618                         si2168_config.fe = &dvb->fe[0];
1619                         si2168_config.ts_mode = SI2168_TS_PARALLEL;
1620                         memset(&info, 0, sizeof(struct i2c_board_info));
1621                         strlcpy(info.type, "si2168", I2C_NAME_SIZE);
1622                         info.addr = 0x64;
1623                         info.platform_data = &si2168_config;
1624                         request_module(info.type);
1625                         client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info);
1626                         if (client == NULL || client->dev.driver == NULL) {
1627                                 result = -ENODEV;
1628                                 goto out_free;
1629                         }
1630
1631                         if (!try_module_get(client->dev.driver->owner)) {
1632                                 i2c_unregister_device(client);
1633                                 result = -ENODEV;
1634                                 goto out_free;
1635                         }
1636
1637                         dvb->i2c_client_demod = client;
1638
1639                         /* attach tuner */
1640                         memset(&si2157_config, 0, sizeof(si2157_config));
1641                         si2157_config.fe = dvb->fe[0];
1642                         memset(&info, 0, sizeof(struct i2c_board_info));
1643                         strlcpy(info.type, "si2146", I2C_NAME_SIZE);
1644                         info.addr = 0x60;
1645                         info.platform_data = &si2157_config;
1646                         request_module("si2157");
1647                         client = i2c_new_device(adapter, &info);
1648                         if (client == NULL || client->dev.driver == NULL) {
1649                                 module_put(dvb->i2c_client_demod->dev.driver->owner);
1650                                 i2c_unregister_device(dvb->i2c_client_demod);
1651                                 result = -ENODEV;
1652                                 goto out_free;
1653                         }
1654
1655                         if (!try_module_get(client->dev.driver->owner)) {
1656                                 i2c_unregister_device(client);
1657                                 module_put(dvb->i2c_client_demod->dev.driver->owner);
1658                                 i2c_unregister_device(dvb->i2c_client_demod);
1659                                 result = -ENODEV;
1660                                 goto out_free;
1661                         }
1662
1663                         dvb->i2c_client_tuner = client;
1664                 }
1665                 break;
1666         default:
1667                 em28xx_errdev("/2: The frontend of your DVB/ATSC card"
1668                                 " isn't supported yet\n");
1669                 break;
1670         }
1671         if (NULL == dvb->fe[0]) {
1672                 em28xx_errdev("/2: frontend initialization failed\n");
1673                 result = -EINVAL;
1674                 goto out_free;
1675         }
1676         /* define general-purpose callback pointer */
1677         dvb->fe[0]->callback = em28xx_tuner_callback;
1678         if (dvb->fe[1])
1679                 dvb->fe[1]->callback = em28xx_tuner_callback;
1680
1681         /* register everything */
1682         result = em28xx_register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
1683
1684         if (result < 0)
1685                 goto out_free;
1686
1687         em28xx_info("DVB extension successfully initialized\n");
1688
1689         kref_get(&dev->ref);
1690
1691 ret:
1692         em28xx_set_mode(dev, EM28XX_SUSPEND);
1693         mutex_unlock(&dev->lock);
1694         return result;
1695
1696 out_free:
1697         kfree(dvb);
1698         dev->dvb = NULL;
1699         goto ret;
1700 }
1701
1702 static inline void prevent_sleep(struct dvb_frontend_ops *ops)
1703 {
1704         ops->set_voltage = NULL;
1705         ops->sleep = NULL;
1706         ops->tuner_ops.sleep = NULL;
1707 }
1708
1709 static int em28xx_dvb_fini(struct em28xx *dev)
1710 {
1711         struct em28xx_dvb *dvb;
1712         struct i2c_client *client;
1713
1714         if (dev->is_audio_only) {
1715                 /* Shouldn't initialize IR for this interface */
1716                 return 0;
1717         }
1718
1719         if (!dev->board.has_dvb) {
1720                 /* This device does not support the extension */
1721                 return 0;
1722         }
1723
1724         if (!dev->dvb)
1725                 return 0;
1726
1727         em28xx_info("Closing DVB extension\n");
1728
1729         dvb = dev->dvb;
1730         client = dvb->i2c_client_tuner;
1731
1732         em28xx_uninit_usb_xfer(dev, EM28XX_DIGITAL_MODE);
1733
1734         if (dev->disconnected) {
1735                 /* We cannot tell the device to sleep
1736                  * once it has been unplugged. */
1737                 if (dvb->fe[0]) {
1738                         prevent_sleep(&dvb->fe[0]->ops);
1739                         dvb->fe[0]->exit = DVB_FE_DEVICE_REMOVED;
1740                 }
1741                 if (dvb->fe[1]) {
1742                         prevent_sleep(&dvb->fe[1]->ops);
1743                         dvb->fe[1]->exit = DVB_FE_DEVICE_REMOVED;
1744                 }
1745         }
1746
1747         /* remove I2C tuner */
1748         if (client) {
1749                 module_put(client->dev.driver->owner);
1750                 i2c_unregister_device(client);
1751         }
1752
1753         /* remove I2C demod */
1754         client = dvb->i2c_client_demod;
1755         if (client) {
1756                 module_put(client->dev.driver->owner);
1757                 i2c_unregister_device(client);
1758         }
1759
1760         em28xx_unregister_dvb(dvb);
1761         kfree(dvb);
1762         dev->dvb = NULL;
1763         kref_put(&dev->ref, em28xx_free_device);
1764
1765         return 0;
1766 }
1767
1768 static int em28xx_dvb_suspend(struct em28xx *dev)
1769 {
1770         int ret = 0;
1771
1772         if (dev->is_audio_only)
1773                 return 0;
1774
1775         if (!dev->board.has_dvb)
1776                 return 0;
1777
1778         em28xx_info("Suspending DVB extension\n");
1779         if (dev->dvb) {
1780                 struct em28xx_dvb *dvb = dev->dvb;
1781
1782                 if (dvb->fe[0]) {
1783                         ret = dvb_frontend_suspend(dvb->fe[0]);
1784                         em28xx_info("fe0 suspend %d\n", ret);
1785                 }
1786                 if (dvb->fe[1]) {
1787                         dvb_frontend_suspend(dvb->fe[1]);
1788                         em28xx_info("fe1 suspend %d\n", ret);
1789                 }
1790         }
1791
1792         return 0;
1793 }
1794
1795 static int em28xx_dvb_resume(struct em28xx *dev)
1796 {
1797         int ret = 0;
1798
1799         if (dev->is_audio_only)
1800                 return 0;
1801
1802         if (!dev->board.has_dvb)
1803                 return 0;
1804
1805         em28xx_info("Resuming DVB extension\n");
1806         if (dev->dvb) {
1807                 struct em28xx_dvb *dvb = dev->dvb;
1808
1809                 if (dvb->fe[0]) {
1810                         ret = dvb_frontend_resume(dvb->fe[0]);
1811                         em28xx_info("fe0 resume %d\n", ret);
1812                 }
1813
1814                 if (dvb->fe[1]) {
1815                         ret = dvb_frontend_resume(dvb->fe[1]);
1816                         em28xx_info("fe1 resume %d\n", ret);
1817                 }
1818         }
1819
1820         return 0;
1821 }
1822
1823 static struct em28xx_ops dvb_ops = {
1824         .id   = EM28XX_DVB,
1825         .name = "Em28xx dvb Extension",
1826         .init = em28xx_dvb_init,
1827         .fini = em28xx_dvb_fini,
1828         .suspend = em28xx_dvb_suspend,
1829         .resume = em28xx_dvb_resume,
1830 };
1831
1832 static int __init em28xx_dvb_register(void)
1833 {
1834         return em28xx_register_extension(&dvb_ops);
1835 }
1836
1837 static void __exit em28xx_dvb_unregister(void)
1838 {
1839         em28xx_unregister_extension(&dvb_ops);
1840 }
1841
1842 module_init(em28xx_dvb_register);
1843 module_exit(em28xx_dvb_unregister);