drivers/media/usb/em28xx/em28xx-dvb.c

   1 /*
   2  DVB device driver for em28xx
   3
   4  (c) 2008-2011 Mauro Carvalho Chehab <mchehab@infradead.org>
   5
   6  (c) 2008 Devin Heitmueller <devin.heitmueller@gmail.com>
   7         - Fixes for the driver to properly work with HVR-950
   8         - Fixes for the driver to properly work with Pinnacle PCTV HD Pro Stick
   9         - Fixes for the driver to properly work with AMD ATI TV Wonder HD 600
  10
  11  (c) 2008 Aidan Thornton <makosoft@googlemail.com>
  12
  13  (c) 2012 Frank Schäfer <fschaefer.oss@googlemail.com>
  14
  15  Based on cx88-dvb, saa7134-dvb and videobuf-dvb originally written by:
  16         (c) 2004, 2005 Chris Pascoe <c.pascoe@itee.uq.edu.au>
  17         (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
  18
  19  This program is free software; you can redistribute it and/or modify
  20  it under the terms of the GNU General Public License as published by
  21  the Free Software Foundation; either version 2 of the License.
  22  */
  23
  24 #include <linux/kernel.h>
  25 #include <linux/slab.h>
  26 #include <linux/usb.h>
  27
  28 #include "em28xx.h"
  29 #include <media/v4l2-common.h>
  30 #include <dvb_demux.h>
  31 #include <dvb_net.h>
  32 #include <dmxdev.h>
  33 #include <media/tuner.h>
  34 #include "tuner-simple.h"
  35 #include <linux/gpio.h>
  36
  37 #include "lgdt330x.h"
  38 #include "lgdt3305.h"
  39 #include "zl10353.h"
  40 #include "s5h1409.h"
  41 #include "mt352.h"
  42 #include "mt352_priv.h" /* FIXME */
  43 #include "tda1002x.h"
  44 #include "drx39xyj/drx39xxj.h"
  45 #include "tda18271.h"
  46 #include "s921.h"
  47 #include "drxd.h"
  48 #include "cxd2820r.h"
  49 #include "tda18271c2dd.h"
  50 #include "drxk.h"
  51 #include "tda10071.h"
  52 #include "tda18212.h"
  53 #include "a8293.h"
  54 #include "qt1010.h"
  55 #include "mb86a20s.h"
  56 #include "m88ds3103.h"
  57 #include "m88ts2022.h"
  58 #include "si2168.h"
  59 #include "si2157.h"
  60
  61 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
  62 MODULE_LICENSE("GPL");
  63 MODULE_DESCRIPTION(DRIVER_DESC " - digital TV interface");
  64 MODULE_VERSION(EM28XX_VERSION);
  65
  66
  67 static unsigned int debug;
  68 module_param(debug, int, 0644);
  69 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
  70
  71 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  72
  73 #define dprintk(level, fmt, arg...) do {                        \
  74 if (debug >= level)                                             \
  75         printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
  76 } while (0)
  77
  78 struct em28xx_dvb {
  79         struct dvb_frontend        *fe[2];
  80
  81         /* feed count management */
  82         struct mutex               lock;
  83         int                        nfeeds;
  84
  85         /* general boilerplate stuff */
  86         struct dvb_adapter         adapter;
  87         struct dvb_demux           demux;
  88         struct dmxdev              dmxdev;
  89         struct dmx_frontend        fe_hw;
  90         struct dmx_frontend        fe_mem;
  91         struct dvb_net             net;
  92
  93         /* Due to DRX-K - probably need changes */
  94         int (*gate_ctrl)(struct dvb_frontend *, int);
  95         struct semaphore      pll_mutex;
  96         bool                    dont_attach_fe1;
  97         int                     lna_gpio;
  98         struct i2c_client       *i2c_client_demod;
  99         struct i2c_client       *i2c_client_tuner;
 100 };
 101
 102
 103 static inline void print_err_status(struct em28xx *dev,
 104                                      int packet, int status)
 105 {
 106         char *errmsg = "Unknown";
 107
 108         switch (status) {
 109         case -ENOENT:
 110                 errmsg = "unlinked synchronuously";
 111                 break;
 112         case -ECONNRESET:
 113                 errmsg = "unlinked asynchronuously";
 114                 break;
 115         case -ENOSR:
 116                 errmsg = "Buffer error (overrun)";
 117                 break;
 118         case -EPIPE:
 119                 errmsg = "Stalled (device not responding)";
 120                 break;
 121         case -EOVERFLOW:
 122                 errmsg = "Babble (bad cable?)";
 123                 break;
 124         case -EPROTO:
 125                 errmsg = "Bit-stuff error (bad cable?)";
 126                 break;
 127         case -EILSEQ:
 128                 errmsg = "CRC/Timeout (could be anything)";
 129                 break;
 130         case -ETIME:
 131                 errmsg = "Device does not respond";
 132                 break;
 133         }
 134         if (packet < 0) {
 135                 dprintk(1, "URB status %d [%s].\n", status, errmsg);
 136         } else {
 137                 dprintk(1, "URB packet %d, status %d [%s].\n",
 138                         packet, status, errmsg);
 139         }
 140 }
 141
 142 static inline int em28xx_dvb_urb_data_copy(struct em28xx *dev, struct urb *urb)
 143 {
 144         int xfer_bulk, num_packets, i;
 145
 146         if (!dev)
 147                 return 0;
 148
 149         if (dev->disconnected)
 150                 return 0;
 151
 152         if (urb->status < 0)
 153                 print_err_status(dev, -1, urb->status);
 154
 155         xfer_bulk = usb_pipebulk(urb->pipe);
 156
 157         if (xfer_bulk) /* bulk */
 158                 num_packets = 1;
 159         else /* isoc */
 160                 num_packets = urb->number_of_packets;
 161
 162         for (i = 0; i < num_packets; i++) {
 163                 if (xfer_bulk) {
 164                         if (urb->status < 0) {
 165                                 print_err_status(dev, i, urb->status);
 166                                 if (urb->status != -EPROTO)
 167                                         continue;
 168                         }
 169                         if (!urb->actual_length)
 170                                 continue;
 171                         dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer,
 172                                         urb->actual_length);
 173                 } else {
 174                         if (urb->iso_frame_desc[i].status < 0) {
 175                                 print_err_status(dev, i,
 176                                                  urb->iso_frame_desc[i].status);
 177                                 if (urb->iso_frame_desc[i].status != -EPROTO)
 178                                         continue;
 179                         }
 180                         if (!urb->iso_frame_desc[i].actual_length)
 181                                 continue;
 182                         dvb_dmx_swfilter(&dev->dvb->demux,
 183                                          urb->transfer_buffer +
 184                                          urb->iso_frame_desc[i].offset,
 185                                          urb->iso_frame_desc[i].actual_length);
 186                 }
 187         }
 188
 189         return 0;
 190 }
 191
 192 static int em28xx_start_streaming(struct em28xx_dvb *dvb)
 193 {
 194         int rc;
 195         struct em28xx_i2c_bus *i2c_bus = dvb->adapter.priv;
 196         struct em28xx *dev = i2c_bus->dev;
 197         int dvb_max_packet_size, packet_multiplier, dvb_alt;
 198
 199         if (dev->dvb_xfer_bulk) {
 200                 if (!dev->dvb_ep_bulk)
 201                         return -ENODEV;
 202                 dvb_max_packet_size = 512; /* USB 2.0 spec */
 203                 packet_multiplier = EM28XX_DVB_BULK_PACKET_MULTIPLIER;
 204                 dvb_alt = 0;
 205         } else { /* isoc */
 206                 if (!dev->dvb_ep_isoc)
 207                         return -ENODEV;
 208                 dvb_max_packet_size = dev->dvb_max_pkt_size_isoc;
 209                 if (dvb_max_packet_size < 0)
 210                         return dvb_max_packet_size;
 211                 packet_multiplier = EM28XX_DVB_NUM_ISOC_PACKETS;
 212                 dvb_alt = dev->dvb_alt_isoc;
 213         }
 214
 215         usb_set_interface(dev->udev, dev->ifnum, dvb_alt);
 216         rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 217         if (rc < 0)
 218                 return rc;
 219
 220         dprintk(1, "Using %d buffers each with %d x %d bytes, alternate %d\n",
 221                 EM28XX_DVB_NUM_BUFS,
 222                 packet_multiplier,
 223                 dvb_max_packet_size, dvb_alt);
 224
 225         return em28xx_init_usb_xfer(dev, EM28XX_DIGITAL_MODE,
 226                                     dev->dvb_xfer_bulk,
 227                                     EM28XX_DVB_NUM_BUFS,
 228                                     dvb_max_packet_size,
 229                                     packet_multiplier,
 230                                     em28xx_dvb_urb_data_copy);
 231 }
 232
 233 static int em28xx_stop_streaming(struct em28xx_dvb *dvb)
 234 {
 235         struct em28xx_i2c_bus *i2c_bus = dvb->adapter.priv;
 236         struct em28xx *dev = i2c_bus->dev;
 237
 238         em28xx_stop_urbs(dev);
 239
 240         return 0;
 241 }
 242
 243 static int em28xx_start_feed(struct dvb_demux_feed *feed)
 244 {
 245         struct dvb_demux *demux  = feed->demux;
 246         struct em28xx_dvb *dvb = demux->priv;
 247         int rc, ret;
 248
 249         if (!demux->dmx.frontend)
 250                 return -EINVAL;
 251
 252         mutex_lock(&dvb->lock);
 253         dvb->nfeeds++;
 254         rc = dvb->nfeeds;
 255
 256         if (dvb->nfeeds == 1) {
 257                 ret = em28xx_start_streaming(dvb);
 258                 if (ret < 0)
 259                         rc = ret;
 260         }
 261
 262         mutex_unlock(&dvb->lock);
 263         return rc;
 264 }
 265
 266 static int em28xx_stop_feed(struct dvb_demux_feed *feed)
 267 {
 268         struct dvb_demux *demux  = feed->demux;
 269         struct em28xx_dvb *dvb = demux->priv;
 270         int err = 0;
 271
 272         mutex_lock(&dvb->lock);
 273         dvb->nfeeds--;
 274
 275         if (0 == dvb->nfeeds)
 276                 err = em28xx_stop_streaming(dvb);
 277
 278         mutex_unlock(&dvb->lock);
 279         return err;
 280 }
 281
 282
 283
 284 /* ------------------------------------------------------------------ */
 285 static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
 286 {
 287         struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
 288         struct em28xx *dev = i2c_bus->dev;
 289
 290         if (acquire)
 291                 return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 292         else
 293                 return em28xx_set_mode(dev, EM28XX_SUSPEND);
 294 }
 295
 296 /* ------------------------------------------------------------------ */
 297
 298 static struct lgdt330x_config em2880_lgdt3303_dev = {
 299         .demod_address = 0x0e,
 300         .demod_chip = LGDT3303,
 301 };
 302
 303 static struct lgdt3305_config em2870_lgdt3304_dev = {
 304         .i2c_addr           = 0x0e,
 305         .demod_chip         = LGDT3304,
 306         .spectral_inversion = 1,
 307         .deny_i2c_rptr      = 1,
 308         .mpeg_mode          = LGDT3305_MPEG_PARALLEL,
 309         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 310         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 311         .vsb_if_khz         = 3250,
 312         .qam_if_khz         = 4000,
 313 };
 314
 315 static struct lgdt3305_config em2874_lgdt3305_dev = {
 316         .i2c_addr           = 0x0e,
 317         .demod_chip         = LGDT3305,
 318         .spectral_inversion = 1,
 319         .deny_i2c_rptr      = 0,
 320         .mpeg_mode          = LGDT3305_MPEG_SERIAL,
 321         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 322         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 323         .vsb_if_khz         = 3250,
 324         .qam_if_khz         = 4000,
 325 };
 326
 327 static struct lgdt3305_config em2874_lgdt3305_nogate_dev = {
 328         .i2c_addr           = 0x0e,
 329         .demod_chip         = LGDT3305,
 330         .spectral_inversion = 1,
 331         .deny_i2c_rptr      = 1,
 332         .mpeg_mode          = LGDT3305_MPEG_SERIAL,
 333         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 334         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 335         .vsb_if_khz         = 3600,
 336         .qam_if_khz         = 3600,
 337 };
 338
 339 static struct s921_config sharp_isdbt = {
 340         .demod_address = 0x30 >> 1
 341 };
 342
 343 static struct zl10353_config em28xx_zl10353_with_xc3028 = {
 344         .demod_address = (0x1e >> 1),
 345         .no_tuner = 1,
 346         .parallel_ts = 1,
 347         .if2 = 45600,
 348 };
 349
 350 static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
 351         .demod_address = 0x32 >> 1,
 352         .output_mode   = S5H1409_PARALLEL_OUTPUT,
 353         .gpio          = S5H1409_GPIO_OFF,
 354         .inversion     = S5H1409_INVERSION_OFF,
 355         .status_mode   = S5H1409_DEMODLOCKING,
 356         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
 357 };
 358
 359 static struct tda18271_std_map kworld_a340_std_map = {
 360         .atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 0,
 361                       .if_lvl = 1, .rfagc_top = 0x37, },
 362         .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 1,
 363                       .if_lvl = 1, .rfagc_top = 0x37, },
 364 };
 365
 366 static struct tda18271_config kworld_a340_config = {
 367         .std_map           = &kworld_a340_std_map,
 368 };
 369
 370 static struct tda18271_config kworld_ub435q_v2_config = {
 371         .std_map        = &kworld_a340_std_map,
 372         .gate           = TDA18271_GATE_DIGITAL,
 373 };
 374
 375 static struct tda18212_config kworld_ub435q_v3_config = {
 376         .i2c_address    = 0x60,
 377         .if_atsc_vsb    = 3600,
 378         .if_atsc_qam    = 3600,
 379 };
 380
 381 static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
 382         .demod_address = (0x1e >> 1),
 383         .no_tuner = 1,
 384         .disable_i2c_gate_ctrl = 1,
 385         .parallel_ts = 1,
 386         .if2 = 45600,
 387 };
 388
 389 static struct drxd_config em28xx_drxd = {
 390         .demod_address = 0x70,
 391         .demod_revision = 0xa2,
 392         .pll_type = DRXD_PLL_NONE,
 393         .clock = 12000,
 394         .insert_rs_byte = 1,
 395         .IF = 42800000,
 396         .disable_i2c_gate_ctrl = 1,
 397 };
 398
 399 static struct drxk_config terratec_h5_drxk = {
 400         .adr = 0x29,
 401         .single_master = 1,
 402         .no_i2c_bridge = 1,
 403         .microcode_name = "dvb-usb-terratec-h5-drxk.fw",
 404         .qam_demod_parameter_count = 2,
 405 };
 406
 407 static struct drxk_config hauppauge_930c_drxk = {
 408         .adr = 0x29,
 409         .single_master = 1,
 410         .no_i2c_bridge = 1,
 411         .microcode_name = "dvb-usb-hauppauge-hvr930c-drxk.fw",
 412         .chunk_size = 56,
 413         .qam_demod_parameter_count = 2,
 414 };
 415
 416 static struct drxk_config terratec_htc_stick_drxk = {
 417         .adr = 0x29,
 418         .single_master = 1,
 419         .no_i2c_bridge = 1,
 420         .microcode_name = "dvb-usb-terratec-htc-stick-drxk.fw",
 421         .chunk_size = 54,
 422         .qam_demod_parameter_count = 2,
 423         /* Required for the antenna_gpio to disable LNA. */
 424         .antenna_dvbt = true,
 425         /* The windows driver uses the same. This will disable LNA. */
 426         .antenna_gpio = 0x6,
 427 };
 428
 429 static struct drxk_config maxmedia_ub425_tc_drxk = {
 430         .adr = 0x29,
 431         .single_master = 1,
 432         .no_i2c_bridge = 1,
 433         .microcode_name = "dvb-demod-drxk-01.fw",
 434         .chunk_size = 62,
 435         .qam_demod_parameter_count = 2,
 436 };
 437
 438 static struct drxk_config pctv_520e_drxk = {
 439         .adr = 0x29,
 440         .single_master = 1,
 441         .microcode_name = "dvb-demod-drxk-pctv.fw",
 442         .qam_demod_parameter_count = 2,
 443         .chunk_size = 58,
 444         .antenna_dvbt = true, /* disable LNA */
 445         .antenna_gpio = (1 << 2), /* disable LNA */
 446 };
 447
 448 static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
 449 {
 450         struct em28xx_dvb *dvb = fe->sec_priv;
 451         int status;
 452
 453         if (!dvb)
 454                 return -EINVAL;
 455
 456         if (enable) {
 457                 down(&dvb->pll_mutex);
 458                 status = dvb->gate_ctrl(fe, 1);
 459         } else {
 460                 status = dvb->gate_ctrl(fe, 0);
 461                 up(&dvb->pll_mutex);
 462         }
 463         return status;
 464 }
 465
 466 static void hauppauge_hvr930c_init(struct em28xx *dev)
 467 {
 468         int i;
 469
 470         struct em28xx_reg_seq hauppauge_hvr930c_init[] = {
 471                 {EM2874_R80_GPIO_P0_CTRL,       0xff,   0xff,   0x65},
 472                 {EM2874_R80_GPIO_P0_CTRL,       0xfb,   0xff,   0x32},
 473                 {EM2874_R80_GPIO_P0_CTRL,       0xff,   0xff,   0xb8},
 474                 {       -1,                     -1,     -1,     -1},
 475         };
 476         struct em28xx_reg_seq hauppauge_hvr930c_end[] = {
 477                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x01},
 478                 {EM2874_R80_GPIO_P0_CTRL,       0xaf,   0xff,   0x65},
 479                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x76},
 480                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x01},
 481                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x0b},
 482                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x40},
 483
 484                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x65},
 485                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x65},
 486                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x0b},
 487                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x65},
 488
 489                 {       -1,                     -1,     -1,     -1},
 490         };
 491
 492         struct {
 493                 unsigned char r[4];
 494                 int len;
 495         } regs[] = {
 496                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 497                 {{ 0x01, 0x02 }, 2},
 498                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 499                 {{ 0x01, 0x00 }, 2},
 500                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 501                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 502                 {{ 0x01, 0x00 }, 2},
 503                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 504                 {{ 0x04, 0x00 }, 2},
 505                 {{ 0x00, 0x04 }, 2},
 506                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 507                 {{ 0x04, 0x14 }, 2},
 508                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 509         };
 510
 511         em28xx_gpio_set(dev, hauppauge_hvr930c_init);
 512         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 513         msleep(10);
 514         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 515         msleep(10);
 516
 517         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 518
 519         for (i = 0; i < ARRAY_SIZE(regs); i++)
 520                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 521         em28xx_gpio_set(dev, hauppauge_hvr930c_end);
 522
 523         msleep(100);
 524
 525         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 526         msleep(30);
 527
 528         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 529         msleep(10);
 530
 531 }
 532
 533 static void terratec_h5_init(struct em28xx *dev)
 534 {
 535         int i;
 536         struct em28xx_reg_seq terratec_h5_init[] = {
 537                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 538                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 539                 {EM2874_R80_GPIO_P0_CTRL,       0xf2,   0xff,   50},
 540                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 541                 {       -1,                     -1,     -1,     -1},
 542         };
 543         struct em28xx_reg_seq terratec_h5_end[] = {
 544                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 545                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   50},
 546                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 547                 {       -1,                     -1,     -1,     -1},
 548         };
 549         struct {
 550                 unsigned char r[4];
 551                 int len;
 552         } regs[] = {
 553                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 554                 {{ 0x01, 0x02 }, 2},
 555                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 556                 {{ 0x01, 0x00 }, 2},
 557                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 558                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 559                 {{ 0x01, 0x00 }, 2},
 560                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 561                 {{ 0x04, 0x00 }, 2},
 562                 {{ 0x00, 0x04 }, 2},
 563                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 564                 {{ 0x04, 0x14 }, 2},
 565                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 566         };
 567
 568         em28xx_gpio_set(dev, terratec_h5_init);
 569         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 570         msleep(10);
 571         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 572         msleep(10);
 573
 574         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 575
 576         for (i = 0; i < ARRAY_SIZE(regs); i++)
 577                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 578         em28xx_gpio_set(dev, terratec_h5_end);
 579 };
 580
 581 static void terratec_htc_stick_init(struct em28xx *dev)
 582 {
 583         int i;
 584
 585         /*
 586          * GPIO configuration:
 587          * 0xff: unknown (does not affect DVB-T).
 588          * 0xf6: DRX-K (demodulator).
 589          * 0xe6: unknown (does not affect DVB-T).
 590          * 0xb6: unknown (does not affect DVB-T).
 591          */
 592         struct em28xx_reg_seq terratec_htc_stick_init[] = {
 593                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 594                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 595                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   50},
 596                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 597                 {       -1,                     -1,     -1,     -1},
 598         };
 599         struct em28xx_reg_seq terratec_htc_stick_end[] = {
 600                 {EM2874_R80_GPIO_P0_CTRL,       0xb6,   0xff,   100},
 601                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   50},
 602                 {       -1,                     -1,     -1,     -1},
 603         };
 604
 605         /*
 606          * Init the analog decoder (not yet supported), but
 607          * it's probably still a good idea.
 608          */
 609         struct {
 610                 unsigned char r[4];
 611                 int len;
 612         } regs[] = {
 613                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 614                 {{ 0x01, 0x02 }, 2},
 615                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 616                 {{ 0x01, 0x00 }, 2},
 617                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 618         };
 619
 620         em28xx_gpio_set(dev, terratec_htc_stick_init);
 621
 622         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 623         msleep(10);
 624         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 625         msleep(10);
 626
 627         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 628
 629         for (i = 0; i < ARRAY_SIZE(regs); i++)
 630                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 631
 632         em28xx_gpio_set(dev, terratec_htc_stick_end);
 633 };
 634
 635 static void terratec_htc_usb_xs_init(struct em28xx *dev)
 636 {
 637         int i;
 638
 639         struct em28xx_reg_seq terratec_htc_usb_xs_init[] = {
 640                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 641                 {EM2874_R80_GPIO_P0_CTRL,       0xb2,   0xff,   100},
 642                 {EM2874_R80_GPIO_P0_CTRL,       0xb2,   0xff,   50},
 643                 {EM2874_R80_GPIO_P0_CTRL,       0xb6,   0xff,   100},
 644                 {       -1,                     -1,     -1,     -1},
 645         };
 646         struct em28xx_reg_seq terratec_htc_usb_xs_end[] = {
 647                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   100},
 648                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   50},
 649                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 650                 {       -1,                     -1,     -1,     -1},
 651         };
 652
 653         /*
 654          * Init the analog decoder (not yet supported), but
 655          * it's probably still a good idea.
 656          */
 657         struct {
 658                 unsigned char r[4];
 659                 int len;
 660         } regs[] = {
 661                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 662                 {{ 0x01, 0x02 }, 2},
 663                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 664                 {{ 0x01, 0x00 }, 2},
 665                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 666                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 667                 {{ 0x01, 0x00 }, 2},
 668                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 669                 {{ 0x04, 0x00 }, 2},
 670                 {{ 0x00, 0x04 }, 2},
 671                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 672                 {{ 0x04, 0x14 }, 2},
 673                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 674         };
 675
 676         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 677
 678         em28xx_gpio_set(dev, terratec_htc_usb_xs_init);
 679
 680         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 681         msleep(10);
 682         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 683         msleep(10);
 684
 685         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 686
 687         for (i = 0; i < ARRAY_SIZE(regs); i++)
 688                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 689
 690         em28xx_gpio_set(dev, terratec_htc_usb_xs_end);
 691 };
 692
 693 static void pctv_520e_init(struct em28xx *dev)
 694 {
 695         /*
 696          * Init AVF4910B analog decoder. Looks like I2C traffic to
 697          * digital demodulator and tuner are routed via AVF4910B.
 698          */
 699         int i;
 700         struct {
 701                 unsigned char r[4];
 702                 int len;
 703         } regs[] = {
 704                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 705                 {{ 0x01, 0x02 }, 2},
 706                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 707                 {{ 0x01, 0x00 }, 2},
 708                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 709                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 710                 {{ 0x01, 0x00 }, 2},
 711                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 712         };
 713
 714         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1; /* 0x41 */
 715
 716         for (i = 0; i < ARRAY_SIZE(regs); i++)
 717                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 718 };
 719
 720 static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe)
 721 {
 722         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 723         struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
 724         struct em28xx *dev = i2c_bus->dev;
 725 #ifdef CONFIG_GPIOLIB
 726         struct em28xx_dvb *dvb = dev->dvb;
 727         int ret;
 728         unsigned long flags;
 729
 730         if (c->lna == 1)
 731                 flags = GPIOF_OUT_INIT_HIGH; /* enable LNA */
 732         else
 733                 flags = GPIOF_OUT_INIT_LOW; /* disable LNA */
 734
 735         ret = gpio_request_one(dvb->lna_gpio, flags, NULL);
 736         if (ret)
 737                 em28xx_errdev("gpio request failed %d\n", ret);
 738         else
 739                 gpio_free(dvb->lna_gpio);
 740
 741         return ret;
 742 #else
 743         dev_warn(&dev->udev->dev, "%s: LNA control is disabled (lna=%u)\n",
 744                         KBUILD_MODNAME, c->lna);
 745         return 0;
 746 #endif
 747 }
 748
 749 static int em28xx_mt352_terratec_xs_init(struct dvb_frontend *fe)
 750 {
 751         /* Values extracted from a USB trace of the Terratec Windows driver */
 752         static u8 clock_config[]   = { CLOCK_CTL,  0x38, 0x2c };
 753         static u8 reset[]          = { RESET,      0x80 };
 754         static u8 adc_ctl_1_cfg[]  = { ADC_CTL_1,  0x40 };
 755         static u8 agc_cfg[]        = { AGC_TARGET, 0x28, 0xa0 };
 756         static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
 757         static u8 rs_err_cfg[]     = { RS_ERR_PER_1, 0x00, 0x4d };
 758         static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
 759         static u8 trl_nom_cfg[]    = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
 760         static u8 tps_given_cfg[]  = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
 761         static u8 tuner_go[]       = { TUNER_GO, 0x01};
 762
 763         mt352_write(fe, clock_config,   sizeof(clock_config));
 764         udelay(200);
 765         mt352_write(fe, reset,          sizeof(reset));
 766         mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));
 767         mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
 768         mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
 769         mt352_write(fe, rs_err_cfg,     sizeof(rs_err_cfg));
 770         mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
 771         mt352_write(fe, trl_nom_cfg,    sizeof(trl_nom_cfg));
 772         mt352_write(fe, tps_given_cfg,  sizeof(tps_given_cfg));
 773         mt352_write(fe, tuner_go,       sizeof(tuner_go));
 774         return 0;
 775 }
 776
 777 static struct mt352_config terratec_xs_mt352_cfg = {
 778         .demod_address = (0x1e >> 1),
 779         .no_tuner = 1,
 780         .if2 = 45600,
 781         .demod_init = em28xx_mt352_terratec_xs_init,
 782 };
 783
 784 static struct tda10023_config em28xx_tda10023_config = {
 785         .demod_address = 0x0c,
 786         .invert = 1,
 787 };
 788
 789 static struct cxd2820r_config em28xx_cxd2820r_config = {
 790         .i2c_address = (0xd8 >> 1),
 791         .ts_mode = CXD2820R_TS_SERIAL,
 792 };
 793
 794 static struct tda18271_config em28xx_cxd2820r_tda18271_config = {
 795         .output_opt = TDA18271_OUTPUT_LT_OFF,
 796         .gate = TDA18271_GATE_DIGITAL,
 797 };
 798
 799 static const struct tda10071_config em28xx_tda10071_config = {
 800         .demod_i2c_addr = 0x55, /* (0xaa >> 1) */
 801         .tuner_i2c_addr = 0x14,
 802         .i2c_wr_max = 64,
 803         .ts_mode = TDA10071_TS_SERIAL,
 804         .spec_inv = 0,
 805         .xtal = 40444000, /* 40.444 MHz */
 806         .pll_multiplier = 20,
 807 };
 808
 809 static const struct a8293_config em28xx_a8293_config = {
 810         .i2c_addr = 0x08, /* (0x10 >> 1) */
 811 };
 812
 813 static struct zl10353_config em28xx_zl10353_no_i2c_gate_dev = {
 814         .demod_address = (0x1e >> 1),
 815         .disable_i2c_gate_ctrl = 1,
 816         .no_tuner = 1,
 817         .parallel_ts = 1,
 818 };
 819 static struct qt1010_config em28xx_qt1010_config = {
 820         .i2c_address = 0x62
 821 };
 822
 823 static const struct mb86a20s_config c3tech_duo_mb86a20s_config = {
 824         .demod_address = 0x10,
 825         .is_serial = true,
 826 };
 827
 828 static struct tda18271_std_map mb86a20s_tda18271_config = {
 829         .dvbt_6   = { .if_freq = 4000, .agc_mode = 3, .std = 4,
 830                       .if_lvl = 1, .rfagc_top = 0x37, },
 831 };
 832
 833 static struct tda18271_config c3tech_duo_tda18271_config = {
 834         .std_map = &mb86a20s_tda18271_config,
 835         .gate    = TDA18271_GATE_DIGITAL,
 836         .small_i2c = TDA18271_03_BYTE_CHUNK_INIT,
 837 };
 838
 839 static const struct m88ds3103_config pctv_461e_m88ds3103_config = {
 840         .i2c_addr = 0x68,
 841         .clock = 27000000,
 842         .i2c_wr_max = 33,
 843         .clock_out = 0,
 844         .ts_mode = M88DS3103_TS_PARALLEL_16,
 845         .agc = 0x99,
 846 };
 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, mfe_shared = 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], 0x61, TUNER_THOMSON_DTT761X)) {
1170                                 result = -EINVAL;
1171                                 goto out_free;
1172                         }
1173                 }
1174                 break;
1175         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
1176         case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
1177                 dvb->fe[0] = dvb_attach(drxd_attach, &em28xx_drxd, NULL,
1178                                            &dev->i2c_adap[dev->def_i2c_bus], &dev->udev->dev);
1179                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1180                         result = -EINVAL;
1181                         goto out_free;
1182                 }
1183                 break;
1184         case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
1185                 /* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
1186                 dvb->fe[0] = dvb_attach(tda10023_attach,
1187                         &em28xx_tda10023_config,
1188                         &dev->i2c_adap[dev->def_i2c_bus], 0x48);
1189                 if (dvb->fe[0]) {
1190                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1191                                 &dev->i2c_adap[dev->def_i2c_bus], 0x60, TUNER_PHILIPS_CU1216L)) {
1192                                 result = -EINVAL;
1193                                 goto out_free;
1194                         }
1195                 }
1196                 break;
1197         case EM2870_BOARD_KWORLD_A340:
1198                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1199                                            &em2870_lgdt3304_dev,
1200                                            &dev->i2c_adap[dev->def_i2c_bus]);
1201                 if (dvb->fe[0] != NULL)
1202                         dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1203                                    &dev->i2c_adap[dev->def_i2c_bus], &kworld_a340_config);
1204                 break;
1205         case EM28174_BOARD_PCTV_290E:
1206                 /* set default GPIO0 for LNA, used if GPIOLIB is undefined */
1207                 dvb->lna_gpio = CXD2820R_GPIO_E | CXD2820R_GPIO_O |
1208                                 CXD2820R_GPIO_L;
1209                 dvb->fe[0] = dvb_attach(cxd2820r_attach,
1210                                         &em28xx_cxd2820r_config,
1211                                         &dev->i2c_adap[dev->def_i2c_bus],
1212                                         &dvb->lna_gpio);
1213                 if (dvb->fe[0]) {
1214                         /* FE 0 attach tuner */
1215                         if (!dvb_attach(tda18271_attach,
1216                                         dvb->fe[0],
1217                                         0x60,
1218                                         &dev->i2c_adap[dev->def_i2c_bus],
1219                                         &em28xx_cxd2820r_tda18271_config)) {
1220
1221                                 dvb_frontend_detach(dvb->fe[0]);
1222                                 result = -EINVAL;
1223                                 goto out_free;
1224                         }
1225
1226 #ifdef CONFIG_GPIOLIB
1227                         /* enable LNA for DVB-T, DVB-T2 and DVB-C */
1228                         result = gpio_request_one(dvb->lna_gpio,
1229                                         GPIOF_OUT_INIT_LOW, NULL);
1230                         if (result)
1231                                 em28xx_errdev("gpio request failed %d\n",
1232                                                 result);
1233                         else
1234                                 gpio_free(dvb->lna_gpio);
1235
1236                         result = 0; /* continue even set LNA fails */
1237 #endif
1238                         dvb->fe[0]->ops.set_lna = em28xx_pctv_290e_set_lna;
1239                 }
1240
1241                 break;
1242         case EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C:
1243         {
1244                 struct xc5000_config cfg;
1245                 hauppauge_hvr930c_init(dev);
1246
1247                 dvb->fe[0] = dvb_attach(drxk_attach,
1248                                         &hauppauge_930c_drxk, &dev->i2c_adap[dev->def_i2c_bus]);
1249                 if (!dvb->fe[0]) {
1250                         result = -EINVAL;
1251                         goto out_free;
1252                 }
1253                 /* FIXME: do we need a pll semaphore? */
1254                 dvb->fe[0]->sec_priv = dvb;
1255                 sema_init(&dvb->pll_mutex, 1);
1256                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1257                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1258
1259                 /* Attach xc5000 */
1260                 memset(&cfg, 0, sizeof(cfg));
1261                 cfg.i2c_address  = 0x61;
1262                 cfg.if_khz = 4000;
1263
1264                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1265                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1266                 if (!dvb_attach(xc5000_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus],
1267                                 &cfg)) {
1268                         result = -EINVAL;
1269                         goto out_free;
1270                 }
1271                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1272                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1273
1274                 break;
1275         }
1276         case EM2884_BOARD_TERRATEC_H5:
1277                 terratec_h5_init(dev);
1278
1279                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_h5_drxk, &dev->i2c_adap[dev->def_i2c_bus]);
1280                 if (!dvb->fe[0]) {
1281                         result = -EINVAL;
1282                         goto out_free;
1283                 }
1284                 /* FIXME: do we need a pll semaphore? */
1285                 dvb->fe[0]->sec_priv = dvb;
1286                 sema_init(&dvb->pll_mutex, 1);
1287                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1288                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1289
1290                 /* Attach tda18271 to DVB-C frontend */
1291                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1292                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1293                 if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus], 0x60)) {
1294                         result = -EINVAL;
1295                         goto out_free;
1296                 }
1297                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1298                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1299
1300                 break;
1301         case EM2884_BOARD_C3TECH_DIGITAL_DUO:
1302                 dvb->fe[0] = dvb_attach(mb86a20s_attach,
1303                                            &c3tech_duo_mb86a20s_config,
1304                                            &dev->i2c_adap[dev->def_i2c_bus]);
1305                 if (dvb->fe[0] != NULL)
1306                         dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1307                                    &dev->i2c_adap[dev->def_i2c_bus],
1308                                    &c3tech_duo_tda18271_config);
1309                 break;
1310         case EM28174_BOARD_PCTV_460E:
1311                 /* attach demod */
1312                 dvb->fe[0] = dvb_attach(tda10071_attach,
1313                         &em28xx_tda10071_config, &dev->i2c_adap[dev->def_i2c_bus]);
1314
1315                 /* attach SEC */
1316                 if (dvb->fe[0])
1317                         dvb_attach(a8293_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus],
1318                                 &em28xx_a8293_config);
1319                 break;
1320         case EM2874_BOARD_DELOCK_61959:
1321         case EM2874_BOARD_MAXMEDIA_UB425_TC:
1322                 /* attach demodulator */
1323                 dvb->fe[0] = dvb_attach(drxk_attach, &maxmedia_ub425_tc_drxk,
1324                                 &dev->i2c_adap[dev->def_i2c_bus]);
1325
1326                 if (dvb->fe[0]) {
1327                         /* disable I2C-gate */
1328                         dvb->fe[0]->ops.i2c_gate_ctrl = NULL;
1329
1330                         /* attach tuner */
1331                         if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1332                                         &dev->i2c_adap[dev->def_i2c_bus],
1333                                         &em28xx_cxd2820r_tda18271_config)) {
1334                                 dvb_frontend_detach(dvb->fe[0]);
1335                                 result = -EINVAL;
1336                                 goto out_free;
1337                         }
1338                 }
1339                 break;
1340         case EM2884_BOARD_PCTV_510E:
1341         case EM2884_BOARD_PCTV_520E:
1342                 pctv_520e_init(dev);
1343
1344                 /* attach demodulator */
1345                 dvb->fe[0] = dvb_attach(drxk_attach, &pctv_520e_drxk,
1346                                 &dev->i2c_adap[dev->def_i2c_bus]);
1347
1348                 if (dvb->fe[0]) {
1349                         /* attach tuner */
1350                         if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1351                                         &dev->i2c_adap[dev->def_i2c_bus],
1352                                         &em28xx_cxd2820r_tda18271_config)) {
1353                                 dvb_frontend_detach(dvb->fe[0]);
1354                                 result = -EINVAL;
1355                                 goto out_free;
1356                         }
1357                 }
1358                 break;
1359         case EM2884_BOARD_CINERGY_HTC_STICK:
1360                 terratec_htc_stick_init(dev);
1361
1362                 /* attach demodulator */
1363                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1364                                         &dev->i2c_adap[dev->def_i2c_bus]);
1365                 if (!dvb->fe[0]) {
1366                         result = -EINVAL;
1367                         goto out_free;
1368                 }
1369
1370                 /* Attach the demodulator. */
1371                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1372                                 &dev->i2c_adap[dev->def_i2c_bus],
1373                                 &em28xx_cxd2820r_tda18271_config)) {
1374                         result = -EINVAL;
1375                         goto out_free;
1376                 }
1377                 break;
1378         case EM2884_BOARD_TERRATEC_HTC_USB_XS:
1379                 terratec_htc_usb_xs_init(dev);
1380
1381                 /* attach demodulator */
1382                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1383                                         &dev->i2c_adap[dev->def_i2c_bus]);
1384                 if (!dvb->fe[0]) {
1385                         result = -EINVAL;
1386                         goto out_free;
1387                 }
1388
1389                 /* Attach the demodulator. */
1390                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1391                                 &dev->i2c_adap[dev->def_i2c_bus],
1392                                 &em28xx_cxd2820r_tda18271_config)) {
1393                         result = -EINVAL;
1394                         goto out_free;
1395                 }
1396                 break;
1397         case EM2874_BOARD_KWORLD_UB435Q_V2:
1398                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1399                                         &em2874_lgdt3305_dev,
1400                                         &dev->i2c_adap[dev->def_i2c_bus]);
1401                 if (!dvb->fe[0]) {
1402                         result = -EINVAL;
1403                         goto out_free;
1404                 }
1405
1406                 /* Attach the demodulator. */
1407                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1408                                 &dev->i2c_adap[dev->def_i2c_bus],
1409                                 &kworld_ub435q_v2_config)) {
1410                         result = -EINVAL;
1411                         goto out_free;
1412                 }
1413                 break;
1414         case EM2874_BOARD_KWORLD_UB435Q_V3:
1415                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1416                                         &em2874_lgdt3305_nogate_dev,
1417                                         &dev->i2c_adap[dev->def_i2c_bus]);
1418                 if (!dvb->fe[0]) {
1419                         result = -EINVAL;
1420                         goto out_free;
1421                 }
1422
1423                 /* Attach the demodulator. */
1424                 if (!dvb_attach(tda18212_attach, dvb->fe[0],
1425                                 &dev->i2c_adap[dev->def_i2c_bus],
1426                                 &kworld_ub435q_v3_config)) {
1427                         result = -EINVAL;
1428                         goto out_free;
1429                 }
1430                 break;
1431         case EM2874_BOARD_PCTV_HD_MINI_80E:
1432                 dvb->fe[0] = dvb_attach(drx39xxj_attach, &dev->i2c_adap[dev->def_i2c_bus]);
1433                 if (dvb->fe[0] != NULL) {
1434                         dvb->fe[0] = dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1435                                                 &dev->i2c_adap[dev->def_i2c_bus],
1436                                                 &pinnacle_80e_dvb_config);
1437                         if (!dvb->fe[0]) {
1438                                 result = -EINVAL;
1439                                 goto out_free;
1440                         }
1441                 }
1442                 break;
1443         case EM28178_BOARD_PCTV_461E:
1444                 {
1445                         /* demod I2C adapter */
1446                         struct i2c_adapter *i2c_adapter;
1447                         struct i2c_client *client;
1448                         struct i2c_board_info info;
1449                         struct m88ts2022_config m88ts2022_config = {
1450                                 .clock = 27000000,
1451                         };
1452                         memset(&info, 0, sizeof(struct i2c_board_info));
1453
1454                         /* attach demod */
1455                         dvb->fe[0] = dvb_attach(m88ds3103_attach,
1456                                         &pctv_461e_m88ds3103_config,
1457                                         &dev->i2c_adap[dev->def_i2c_bus],
1458                                         &i2c_adapter);
1459                         if (dvb->fe[0] == NULL) {
1460                                 result = -ENODEV;
1461                                 goto out_free;
1462                         }
1463
1464                         /* attach tuner */
1465                         m88ts2022_config.fe = dvb->fe[0];
1466                         strlcpy(info.type, "m88ts2022", I2C_NAME_SIZE);
1467                         info.addr = 0x60;
1468                         info.platform_data = &m88ts2022_config;
1469                         request_module("m88ts2022");
1470                         client = i2c_new_device(i2c_adapter, &info);
1471                         if (client == NULL || client->dev.driver == NULL) {
1472                                 dvb_frontend_detach(dvb->fe[0]);
1473                                 result = -ENODEV;
1474                                 goto out_free;
1475                         }
1476
1477                         if (!try_module_get(client->dev.driver->owner)) {
1478                                 i2c_unregister_device(client);
1479                                 dvb_frontend_detach(dvb->fe[0]);
1480                                 result = -ENODEV;
1481                                 goto out_free;
1482                         }
1483
1484                         /* delegate signal strength measurement to tuner */
1485                         dvb->fe[0]->ops.read_signal_strength =
1486                                         dvb->fe[0]->ops.tuner_ops.get_rf_strength;
1487
1488                         /* attach SEC */
1489                         if (!dvb_attach(a8293_attach, dvb->fe[0],
1490                                         &dev->i2c_adap[dev->def_i2c_bus],
1491                                         &em28xx_a8293_config)) {
1492                                 module_put(client->dev.driver->owner);
1493                                 i2c_unregister_device(client);
1494                                 dvb_frontend_detach(dvb->fe[0]);
1495                                 result = -ENODEV;
1496                                 goto out_free;
1497                         }
1498
1499                         dvb->i2c_client_tuner = client;
1500                 }
1501                 break;
1502         case EM28178_BOARD_PCTV_292E:
1503                 {
1504                         struct i2c_adapter *adapter;
1505                         struct i2c_client *client;
1506                         struct i2c_board_info info;
1507                         struct si2168_config si2168_config;
1508                         struct si2157_config si2157_config;
1509
1510                         /* attach demod */
1511                         si2168_config.i2c_adapter = &adapter;
1512                         si2168_config.fe = &dvb->fe[0];
1513                         memset(&info, 0, sizeof(struct i2c_board_info));
1514                         strlcpy(info.type, "si2168", I2C_NAME_SIZE);
1515                         info.addr = 0x64;
1516                         info.platform_data = &si2168_config;
1517                         request_module(info.type);
1518                         client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info);
1519                         if (client == NULL || client->dev.driver == NULL) {
1520                                 result = -ENODEV;
1521                                 goto out_free;
1522                         }
1523
1524                         if (!try_module_get(client->dev.driver->owner)) {
1525                                 i2c_unregister_device(client);
1526                                 result = -ENODEV;
1527                                 goto out_free;
1528                         }
1529
1530                         dvb->i2c_client_demod = client;
1531
1532                         /* attach tuner */
1533                         si2157_config.fe = dvb->fe[0];
1534                         memset(&info, 0, sizeof(struct i2c_board_info));
1535                         strlcpy(info.type, "si2157", I2C_NAME_SIZE);
1536                         info.addr = 0x60;
1537                         info.platform_data = &si2157_config;
1538                         request_module(info.type);
1539                         client = i2c_new_device(adapter, &info);
1540                         if (client == NULL || client->dev.driver == NULL) {
1541                                 module_put(dvb->i2c_client_demod->dev.driver->owner);
1542                                 i2c_unregister_device(dvb->i2c_client_demod);
1543                                 result = -ENODEV;
1544                                 goto out_free;
1545                         }
1546
1547                         if (!try_module_get(client->dev.driver->owner)) {
1548                                 i2c_unregister_device(client);
1549                                 module_put(dvb->i2c_client_demod->dev.driver->owner);
1550                                 i2c_unregister_device(dvb->i2c_client_demod);
1551                                 result = -ENODEV;
1552                                 goto out_free;
1553                         }
1554
1555                         dvb->i2c_client_tuner = client;
1556                 }
1557                 break;
1558         default:
1559                 em28xx_errdev("/2: The frontend of your DVB/ATSC card"
1560                                 " isn't supported yet\n");
1561                 break;
1562         }
1563         if (NULL == dvb->fe[0]) {
1564                 em28xx_errdev("/2: frontend initialization failed\n");
1565                 result = -EINVAL;
1566                 goto out_free;
1567         }
1568         /* define general-purpose callback pointer */
1569         dvb->fe[0]->callback = em28xx_tuner_callback;
1570         if (dvb->fe[1])
1571                 dvb->fe[1]->callback = em28xx_tuner_callback;
1572
1573         /* register everything */
1574         result = em28xx_register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
1575
1576         if (result < 0)
1577                 goto out_free;
1578
1579         /* MFE lock */
1580         dvb->adapter.mfe_shared = mfe_shared;
1581
1582         em28xx_info("DVB extension successfully initialized\n");
1583
1584         kref_get(&dev->ref);
1585
1586 ret:
1587         em28xx_set_mode(dev, EM28XX_SUSPEND);
1588         mutex_unlock(&dev->lock);
1589         return result;
1590
1591 out_free:
1592         kfree(dvb);
1593         dev->dvb = NULL;
1594         goto ret;
1595 }
1596
1597 static inline void prevent_sleep(struct dvb_frontend_ops *ops)
1598 {
1599         ops->set_voltage = NULL;
1600         ops->sleep = NULL;
1601         ops->tuner_ops.sleep = NULL;
1602 }
1603
1604 static int em28xx_dvb_fini(struct em28xx *dev)
1605 {
1606         struct em28xx_dvb *dvb;
1607         struct i2c_client *client;
1608
1609         if (dev->is_audio_only) {
1610                 /* Shouldn't initialize IR for this interface */
1611                 return 0;
1612         }
1613
1614         if (!dev->board.has_dvb) {
1615                 /* This device does not support the extension */
1616                 return 0;
1617         }
1618
1619         if (!dev->dvb)
1620                 return 0;
1621
1622         em28xx_info("Closing DVB extension");
1623
1624         dvb = dev->dvb;
1625         client = dvb->i2c_client_tuner;
1626
1627         em28xx_uninit_usb_xfer(dev, EM28XX_DIGITAL_MODE);
1628
1629         if (dev->disconnected) {
1630                 /* We cannot tell the device to sleep
1631                  * once it has been unplugged. */
1632                 if (dvb->fe[0])
1633                         prevent_sleep(&dvb->fe[0]->ops);
1634                 if (dvb->fe[1])
1635                         prevent_sleep(&dvb->fe[1]->ops);
1636         }
1637
1638         /* remove I2C tuner */
1639         if (client) {
1640                 module_put(client->dev.driver->owner);
1641                 i2c_unregister_device(client);
1642         }
1643
1644         /* remove I2C demod */
1645         client = dvb->i2c_client_demod;
1646         if (client) {
1647                 module_put(client->dev.driver->owner);
1648                 i2c_unregister_device(client);
1649         }
1650
1651         em28xx_unregister_dvb(dvb);
1652         kfree(dvb);
1653         dev->dvb = NULL;
1654         kref_put(&dev->ref, em28xx_free_device);
1655
1656         return 0;
1657 }
1658
1659 static int em28xx_dvb_suspend(struct em28xx *dev)
1660 {
1661         int ret = 0;
1662
1663         if (dev->is_audio_only)
1664                 return 0;
1665
1666         if (!dev->board.has_dvb)
1667                 return 0;
1668
1669         em28xx_info("Suspending DVB extension");
1670         if (dev->dvb) {
1671                 struct em28xx_dvb *dvb = dev->dvb;
1672
1673                 if (dvb->fe[0]) {
1674                         ret = dvb_frontend_suspend(dvb->fe[0]);
1675                         em28xx_info("fe0 suspend %d", ret);
1676                 }
1677                 if (dvb->fe[1]) {
1678                         dvb_frontend_suspend(dvb->fe[1]);
1679                         em28xx_info("fe1 suspend %d", ret);
1680                 }
1681         }
1682
1683         return 0;
1684 }
1685
1686 static int em28xx_dvb_resume(struct em28xx *dev)
1687 {
1688         int ret = 0;
1689
1690         if (dev->is_audio_only)
1691                 return 0;
1692
1693         if (!dev->board.has_dvb)
1694                 return 0;
1695
1696         em28xx_info("Resuming DVB extension");
1697         if (dev->dvb) {
1698                 struct em28xx_dvb *dvb = dev->dvb;
1699                 struct i2c_client *client = dvb->i2c_client_tuner;
1700
1701                 if (dvb->fe[0]) {
1702                         ret = dvb_frontend_resume(dvb->fe[0]);
1703                         em28xx_info("fe0 resume %d", ret);
1704                 }
1705
1706                 if (dvb->fe[1]) {
1707                         ret = dvb_frontend_resume(dvb->fe[1]);
1708                         em28xx_info("fe1 resume %d", ret);
1709                 }
1710                 /* remove I2C tuner */
1711                 if (client) {
1712                         module_put(client->dev.driver->owner);
1713                         i2c_unregister_device(client);
1714                 }
1715
1716                 /* remove I2C demod */
1717                 client = dvb->i2c_client_demod;
1718                 if (client) {
1719                         module_put(client->dev.driver->owner);
1720                         i2c_unregister_device(client);
1721                 }
1722
1723                 em28xx_unregister_dvb(dvb);
1724                 kfree(dvb);
1725                 dev->dvb = NULL;
1726         }
1727
1728         return 0;
1729 }
1730
1731 static struct em28xx_ops dvb_ops = {
1732         .id   = EM28XX_DVB,
1733         .name = "Em28xx dvb Extension",
1734         .init = em28xx_dvb_init,
1735         .fini = em28xx_dvb_fini,
1736         .suspend = em28xx_dvb_suspend,
1737         .resume = em28xx_dvb_resume,
1738 };
1739
1740 static int __init em28xx_dvb_register(void)
1741 {
1742         return em28xx_register_extension(&dvb_ops);
1743 }
1744
1745 static void __exit em28xx_dvb_unregister(void)
1746 {
1747         em28xx_unregister_extension(&dvb_ops);
1748 }
1749
1750 module_init(em28xx_dvb_register);
1751 module_exit(em28xx_dvb_unregister);