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