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

   1 // SPDX-License-Identifier: GPL-2.0
   2 //
   3 // DVB device driver for em28xx
   4 //
   5 // (c) 2008-2011 Mauro Carvalho Chehab <mchehab@infradead.org>
   6 //
   7 // (c) 2008 Devin Heitmueller <devin.heitmueller@gmail.com>
   8 //      - Fixes for the driver to properly work with HVR-950
   9 //      - Fixes for the driver to properly work with Pinnacle PCTV HD Pro Stick
  10 //      - Fixes for the driver to properly work with AMD ATI TV Wonder HD 600
  11 //
  12 // (c) 2008 Aidan Thornton <makosoft@googlemail.com>
  13 //
  14 // (c) 2012 Frank Schäfer <fschaefer.oss@googlemail.com>
  15 //
  16 // Based on cx88-dvb, saa7134-dvb and videobuf-dvb originally written by:
  17 //      (c) 2004, 2005 Chris Pascoe <c.pascoe@itee.uq.edu.au>
  18 //      (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
  19 //
  20 // This program is free software; you can redistribute it and/or modify
  21 // it under the terms of the GNU General Public License as published by
  22 // the Free Software Foundation version 2 of the License.
  23
  24 #include "em28xx.h"
  25
  26 #include <linux/kernel.h>
  27 #include <linux/slab.h>
  28 #include <linux/usb.h>
  29
  30 #include <media/v4l2-common.h>
  31 #include <media/dvb_demux.h>
  32 #include <media/dvb_net.h>
  33 #include <media/dmxdev.h>
  34 #include <media/tuner.h>
  35 #include "tuner-simple.h"
  36 #include <linux/gpio.h>
  37
  38 #include "lgdt330x.h"
  39 #include "lgdt3305.h"
  40 #include "lgdt3306a.h"
  41 #include "zl10353.h"
  42 #include "s5h1409.h"
  43 #include "mt2060.h"
  44 #include "mt352.h"
  45 #include "mt352_priv.h" /* FIXME */
  46 #include "tda1002x.h"
  47 #include "drx39xyj/drx39xxj.h"
  48 #include "tda18271.h"
  49 #include "s921.h"
  50 #include "drxd.h"
  51 #include "cxd2820r.h"
  52 #include "tda18271c2dd.h"
  53 #include "drxk.h"
  54 #include "tda10071.h"
  55 #include "tda18212.h"
  56 #include "a8293.h"
  57 #include "qt1010.h"
  58 #include "mb86a20s.h"
  59 #include "m88ds3103.h"
  60 #include "ts2020.h"
  61 #include "si2168.h"
  62 #include "si2157.h"
  63 #include "tc90522.h"
  64 #include "qm1d1c0042.h"
  65
  66 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
  67 MODULE_LICENSE("GPL v2");
  68 MODULE_DESCRIPTION(DRIVER_DESC " - digital TV interface");
  69 MODULE_VERSION(EM28XX_VERSION);
  70
  71 static unsigned int debug;
  72 module_param(debug, int, 0644);
  73 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
  74
  75 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  76
  77 #define dprintk(level, fmt, arg...) do {                                \
  78         if (debug >= level)                                             \
  79                 dev_printk(KERN_DEBUG, &dev->intf->dev,                 \
  80                            "dvb: " fmt, ## arg);                        \
  81 } while (0)
  82
  83 struct em28xx_dvb {
  84         struct dvb_frontend        *fe[2];
  85
  86         /* feed count management */
  87         struct mutex               lock;
  88         int                        nfeeds;
  89
  90         /* general boilerplate stuff */
  91         struct dvb_adapter         adapter;
  92         struct dvb_demux           demux;
  93         struct dmxdev              dmxdev;
  94         struct dmx_frontend        fe_hw;
  95         struct dmx_frontend        fe_mem;
  96         struct dvb_net             net;
  97
  98         /* Due to DRX-K - probably need changes */
  99         int (*gate_ctrl)(struct dvb_frontend *fe, int gate);
 100         struct semaphore      pll_mutex;
 101         bool                    dont_attach_fe1;
 102         int                     lna_gpio;
 103         struct i2c_client       *i2c_client_demod;
 104         struct i2c_client       *i2c_client_tuner;
 105         struct i2c_client       *i2c_client_sec;
 106 };
 107
 108 static inline void print_err_status(struct em28xx *dev,
 109                                     int packet, int status)
 110 {
 111         char *errmsg = "Unknown";
 112
 113         switch (status) {
 114         case -ENOENT:
 115                 errmsg = "unlinked synchronously";
 116                 break;
 117         case -ECONNRESET:
 118                 errmsg = "unlinked asynchronously";
 119                 break;
 120         case -ENOSR:
 121                 errmsg = "Buffer error (overrun)";
 122                 break;
 123         case -EPIPE:
 124                 errmsg = "Stalled (device not responding)";
 125                 break;
 126         case -EOVERFLOW:
 127                 errmsg = "Babble (bad cable?)";
 128                 break;
 129         case -EPROTO:
 130                 errmsg = "Bit-stuff error (bad cable?)";
 131                 break;
 132         case -EILSEQ:
 133                 errmsg = "CRC/Timeout (could be anything)";
 134                 break;
 135         case -ETIME:
 136                 errmsg = "Device does not respond";
 137                 break;
 138         }
 139         if (packet < 0) {
 140                 dprintk(1, "URB status %d [%s].\n", status, errmsg);
 141         } else {
 142                 dprintk(1, "URB packet %d, status %d [%s].\n",
 143                         packet, status, errmsg);
 144         }
 145 }
 146
 147 static inline int em28xx_dvb_urb_data_copy(struct em28xx *dev, struct urb *urb)
 148 {
 149         int xfer_bulk, num_packets, i;
 150
 151         if (!dev)
 152                 return 0;
 153
 154         if (dev->disconnected)
 155                 return 0;
 156
 157         if (urb->status < 0)
 158                 print_err_status(dev, -1, urb->status);
 159
 160         xfer_bulk = usb_pipebulk(urb->pipe);
 161
 162         if (xfer_bulk) /* bulk */
 163                 num_packets = 1;
 164         else /* isoc */
 165                 num_packets = urb->number_of_packets;
 166
 167         for (i = 0; i < num_packets; i++) {
 168                 if (xfer_bulk) {
 169                         if (urb->status < 0) {
 170                                 print_err_status(dev, i, urb->status);
 171                                 if (urb->status != -EPROTO)
 172                                         continue;
 173                         }
 174                         if (!urb->actual_length)
 175                                 continue;
 176                         dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer,
 177                                          urb->actual_length);
 178                 } else {
 179                         if (urb->iso_frame_desc[i].status < 0) {
 180                                 print_err_status(dev, i,
 181                                                  urb->iso_frame_desc[i].status);
 182                                 if (urb->iso_frame_desc[i].status != -EPROTO)
 183                                         continue;
 184                         }
 185                         if (!urb->iso_frame_desc[i].actual_length)
 186                                 continue;
 187                         dvb_dmx_swfilter(&dev->dvb->demux,
 188                                          urb->transfer_buffer +
 189                                          urb->iso_frame_desc[i].offset,
 190                                          urb->iso_frame_desc[i].actual_length);
 191                 }
 192         }
 193
 194         return 0;
 195 }
 196
 197 static int em28xx_start_streaming(struct em28xx_dvb *dvb)
 198 {
 199         int rc;
 200         struct em28xx_i2c_bus *i2c_bus = dvb->adapter.priv;
 201         struct em28xx *dev = i2c_bus->dev;
 202         int dvb_max_packet_size, packet_multiplier, dvb_alt;
 203
 204         if (dev->dvb_xfer_bulk) {
 205                 if (!dev->dvb_ep_bulk)
 206                         return -ENODEV;
 207                 dvb_max_packet_size = 512; /* USB 2.0 spec */
 208                 packet_multiplier = EM28XX_DVB_BULK_PACKET_MULTIPLIER;
 209                 dvb_alt = 0;
 210         } else { /* isoc */
 211                 if (!dev->dvb_ep_isoc)
 212                         return -ENODEV;
 213                 dvb_max_packet_size = dev->dvb_max_pkt_size_isoc;
 214                 if (dvb_max_packet_size < 0)
 215                         return dvb_max_packet_size;
 216                 packet_multiplier = EM28XX_DVB_NUM_ISOC_PACKETS;
 217                 dvb_alt = dev->dvb_alt_isoc;
 218         }
 219
 220         rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 221         if (rc < 0)
 222                 return rc;
 223
 224         dprintk(1, "Using %d buffers each with %d x %d bytes, alternate %d\n",
 225                 EM28XX_DVB_NUM_BUFS,
 226                 packet_multiplier,
 227                 dvb_max_packet_size, dvb_alt);
 228
 229         return em28xx_init_usb_xfer(dev, EM28XX_DIGITAL_MODE,
 230                                     dev->dvb_xfer_bulk,
 231                                     EM28XX_DVB_NUM_BUFS,
 232                                     dvb_max_packet_size,
 233                                     packet_multiplier,
 234                                     em28xx_dvb_urb_data_copy);
 235 }
 236
 237 static int em28xx_stop_streaming(struct em28xx_dvb *dvb)
 238 {
 239         struct em28xx_i2c_bus *i2c_bus = dvb->adapter.priv;
 240         struct em28xx *dev = i2c_bus->dev;
 241
 242         em28xx_stop_urbs(dev);
 243
 244         return 0;
 245 }
 246
 247 static int em28xx_start_feed(struct dvb_demux_feed *feed)
 248 {
 249         struct dvb_demux *demux  = feed->demux;
 250         struct em28xx_dvb *dvb = demux->priv;
 251         int rc, ret;
 252
 253         if (!demux->dmx.frontend)
 254                 return -EINVAL;
 255
 256         mutex_lock(&dvb->lock);
 257         dvb->nfeeds++;
 258         rc = dvb->nfeeds;
 259
 260         if (dvb->nfeeds == 1) {
 261                 ret = em28xx_start_streaming(dvb);
 262                 if (ret < 0)
 263                         rc = ret;
 264         }
 265
 266         mutex_unlock(&dvb->lock);
 267         return rc;
 268 }
 269
 270 static int em28xx_stop_feed(struct dvb_demux_feed *feed)
 271 {
 272         struct dvb_demux *demux  = feed->demux;
 273         struct em28xx_dvb *dvb = demux->priv;
 274         int err = 0;
 275
 276         mutex_lock(&dvb->lock);
 277         dvb->nfeeds--;
 278
 279         if (!dvb->nfeeds)
 280                 err = em28xx_stop_streaming(dvb);
 281
 282         mutex_unlock(&dvb->lock);
 283         return err;
 284 }
 285
 286 /* ------------------------------------------------------------------ */
 287 static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
 288 {
 289         struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
 290         struct em28xx *dev = i2c_bus->dev;
 291
 292         if (acquire)
 293                 return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 294         else
 295                 return em28xx_set_mode(dev, EM28XX_SUSPEND);
 296 }
 297
 298 /* ------------------------------------------------------------------ */
 299
 300 static struct lgdt330x_config em2880_lgdt3303_dev = {
 301         .demod_address = 0x0e,
 302         .demod_chip = LGDT3303,
 303 };
 304
 305 static struct lgdt3305_config em2870_lgdt3304_dev = {
 306         .i2c_addr           = 0x0e,
 307         .demod_chip         = LGDT3304,
 308         .spectral_inversion = 1,
 309         .deny_i2c_rptr      = 1,
 310         .mpeg_mode          = LGDT3305_MPEG_PARALLEL,
 311         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 312         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 313         .vsb_if_khz         = 3250,
 314         .qam_if_khz         = 4000,
 315 };
 316
 317 static struct lgdt3305_config em2874_lgdt3305_dev = {
 318         .i2c_addr           = 0x0e,
 319         .demod_chip         = LGDT3305,
 320         .spectral_inversion = 1,
 321         .deny_i2c_rptr      = 0,
 322         .mpeg_mode          = LGDT3305_MPEG_SERIAL,
 323         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 324         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 325         .vsb_if_khz         = 3250,
 326         .qam_if_khz         = 4000,
 327 };
 328
 329 static struct lgdt3305_config em2874_lgdt3305_nogate_dev = {
 330         .i2c_addr           = 0x0e,
 331         .demod_chip         = LGDT3305,
 332         .spectral_inversion = 1,
 333         .deny_i2c_rptr      = 1,
 334         .mpeg_mode          = LGDT3305_MPEG_SERIAL,
 335         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 336         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 337         .vsb_if_khz         = 3600,
 338         .qam_if_khz         = 3600,
 339 };
 340
 341 static struct s921_config sharp_isdbt = {
 342         .demod_address = 0x30 >> 1
 343 };
 344
 345 static struct zl10353_config em28xx_zl10353_with_xc3028 = {
 346         .demod_address = (0x1e >> 1),
 347         .no_tuner = 1,
 348         .parallel_ts = 1,
 349         .if2 = 45600,
 350 };
 351
 352 static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
 353         .demod_address = 0x32 >> 1,
 354         .output_mode   = S5H1409_PARALLEL_OUTPUT,
 355         .gpio          = S5H1409_GPIO_OFF,
 356         .inversion     = S5H1409_INVERSION_OFF,
 357         .status_mode   = S5H1409_DEMODLOCKING,
 358         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINUOUS_NONINVERTING_CLOCK
 359 };
 360
 361 static struct tda18271_std_map kworld_a340_std_map = {
 362         .atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 0,
 363                       .if_lvl = 1, .rfagc_top = 0x37, },
 364         .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 1,
 365                       .if_lvl = 1, .rfagc_top = 0x37, },
 366 };
 367
 368 static struct tda18271_config kworld_a340_config = {
 369         .std_map           = &kworld_a340_std_map,
 370 };
 371
 372 static struct tda18271_config kworld_ub435q_v2_config = {
 373         .std_map        = &kworld_a340_std_map,
 374         .gate           = TDA18271_GATE_DIGITAL,
 375 };
 376
 377 static struct tda18212_config kworld_ub435q_v3_config = {
 378         .if_atsc_vsb    = 3600,
 379         .if_atsc_qam    = 3600,
 380 };
 381
 382 static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
 383         .demod_address = (0x1e >> 1),
 384         .no_tuner = 1,
 385         .disable_i2c_gate_ctrl = 1,
 386         .parallel_ts = 1,
 387         .if2 = 45600,
 388 };
 389
 390 static struct drxd_config em28xx_drxd = {
 391         .demod_address = 0x70,
 392         .demod_revision = 0xa2,
 393         .pll_type = DRXD_PLL_NONE,
 394         .clock = 12000,
 395         .insert_rs_byte = 1,
 396         .IF = 42800000,
 397         .disable_i2c_gate_ctrl = 1,
 398 };
 399
 400 static struct drxk_config terratec_h5_drxk = {
 401         .adr = 0x29,
 402         .single_master = 1,
 403         .no_i2c_bridge = 1,
 404         .microcode_name = "dvb-usb-terratec-h5-drxk.fw",
 405         .qam_demod_parameter_count = 2,
 406 };
 407
 408 static struct drxk_config hauppauge_930c_drxk = {
 409         .adr = 0x29,
 410         .single_master = 1,
 411         .no_i2c_bridge = 1,
 412         .microcode_name = "dvb-usb-hauppauge-hvr930c-drxk.fw",
 413         .chunk_size = 56,
 414         .qam_demod_parameter_count = 2,
 415 };
 416
 417 static struct drxk_config terratec_htc_stick_drxk = {
 418         .adr = 0x29,
 419         .single_master = 1,
 420         .no_i2c_bridge = 1,
 421         .microcode_name = "dvb-usb-terratec-htc-stick-drxk.fw",
 422         .chunk_size = 54,
 423         .qam_demod_parameter_count = 2,
 424         /* Required for the antenna_gpio to disable LNA. */
 425         .antenna_dvbt = true,
 426         /* The windows driver uses the same. This will disable LNA. */
 427         .antenna_gpio = 0x6,
 428 };
 429
 430 static struct drxk_config maxmedia_ub425_tc_drxk = {
 431         .adr = 0x29,
 432         .single_master = 1,
 433         .no_i2c_bridge = 1,
 434         .microcode_name = "dvb-demod-drxk-01.fw",
 435         .chunk_size = 62,
 436         .qam_demod_parameter_count = 2,
 437 };
 438
 439 static struct drxk_config pctv_520e_drxk = {
 440         .adr = 0x29,
 441         .single_master = 1,
 442         .microcode_name = "dvb-demod-drxk-pctv.fw",
 443         .qam_demod_parameter_count = 2,
 444         .chunk_size = 58,
 445         .antenna_dvbt = true, /* disable LNA */
 446         .antenna_gpio = (1 << 2), /* disable LNA */
 447 };
 448
 449 static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
 450 {
 451         struct em28xx_dvb *dvb = fe->sec_priv;
 452         int status;
 453
 454         if (!dvb)
 455                 return -EINVAL;
 456
 457         if (enable) {
 458                 down(&dvb->pll_mutex);
 459                 status = dvb->gate_ctrl(fe, 1);
 460         } else {
 461                 status = dvb->gate_ctrl(fe, 0);
 462                 up(&dvb->pll_mutex);
 463         }
 464         return status;
 465 }
 466
 467 static void hauppauge_hvr930c_init(struct em28xx *dev)
 468 {
 469         int i;
 470
 471         struct em28xx_reg_seq hauppauge_hvr930c_init[] = {
 472                 {EM2874_R80_GPIO_P0_CTRL,       0xff,   0xff,   0x65},
 473                 {EM2874_R80_GPIO_P0_CTRL,       0xfb,   0xff,   0x32},
 474                 {EM2874_R80_GPIO_P0_CTRL,       0xff,   0xff,   0xb8},
 475                 {       -1,                     -1,     -1,     -1},
 476         };
 477         struct em28xx_reg_seq hauppauge_hvr930c_end[] = {
 478                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x01},
 479                 {EM2874_R80_GPIO_P0_CTRL,       0xaf,   0xff,   0x65},
 480                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x76},
 481                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x01},
 482                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x0b},
 483                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x40},
 484
 485                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x65},
 486                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x65},
 487                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x0b},
 488                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x65},
 489
 490                 {       -1,                     -1,     -1,     -1},
 491         };
 492
 493         struct {
 494                 unsigned char r[4];
 495                 int len;
 496         } regs[] = {
 497                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 498                 {{ 0x01, 0x02 }, 2},
 499                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 500                 {{ 0x01, 0x00 }, 2},
 501                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 502                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 503                 {{ 0x01, 0x00 }, 2},
 504                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 505                 {{ 0x04, 0x00 }, 2},
 506                 {{ 0x00, 0x04 }, 2},
 507                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 508                 {{ 0x04, 0x14 }, 2},
 509                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 510         };
 511
 512         em28xx_gpio_set(dev, hauppauge_hvr930c_init);
 513         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 514         usleep_range(10000, 11000);
 515         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 516         usleep_range(10000, 11000);
 517
 518         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 519
 520         for (i = 0; i < ARRAY_SIZE(regs); i++)
 521                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus],
 522                                 regs[i].r, regs[i].len);
 523         em28xx_gpio_set(dev, hauppauge_hvr930c_end);
 524
 525         msleep(100);
 526
 527         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 528         msleep(30);
 529
 530         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 531         usleep_range(10000, 11000);
 532 }
 533
 534 static void terratec_h5_init(struct em28xx *dev)
 535 {
 536         int i;
 537         struct em28xx_reg_seq terratec_h5_init[] = {
 538                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 539                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 540                 {EM2874_R80_GPIO_P0_CTRL,       0xf2,   0xff,   50},
 541                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 542                 {       -1,                     -1,     -1,     -1},
 543         };
 544         struct em28xx_reg_seq terratec_h5_end[] = {
 545                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 546                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   50},
 547                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 548                 {       -1,                     -1,     -1,     -1},
 549         };
 550         struct {
 551                 unsigned char r[4];
 552                 int len;
 553         } regs[] = {
 554                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 555                 {{ 0x01, 0x02 }, 2},
 556                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 557                 {{ 0x01, 0x00 }, 2},
 558                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 559                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 560                 {{ 0x01, 0x00 }, 2},
 561                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 562                 {{ 0x04, 0x00 }, 2},
 563                 {{ 0x00, 0x04 }, 2},
 564                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 565                 {{ 0x04, 0x14 }, 2},
 566                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 567         };
 568
 569         em28xx_gpio_set(dev, terratec_h5_init);
 570         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 571         usleep_range(10000, 11000);
 572         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 573         usleep_range(10000, 11000);
 574
 575         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 576
 577         for (i = 0; i < ARRAY_SIZE(regs); i++)
 578                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus],
 579                                 regs[i].r, regs[i].len);
 580         em28xx_gpio_set(dev, terratec_h5_end);
 581 };
 582
 583 static void terratec_htc_stick_init(struct em28xx *dev)
 584 {
 585         int i;
 586
 587         /*
 588          * GPIO configuration:
 589          * 0xff: unknown (does not affect DVB-T).
 590          * 0xf6: DRX-K (demodulator).
 591          * 0xe6: unknown (does not affect DVB-T).
 592          * 0xb6: unknown (does not affect DVB-T).
 593          */
 594         struct em28xx_reg_seq terratec_htc_stick_init[] = {
 595                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 596                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 597                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   50},
 598                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 599                 {       -1,                     -1,     -1,     -1},
 600         };
 601         struct em28xx_reg_seq terratec_htc_stick_end[] = {
 602                 {EM2874_R80_GPIO_P0_CTRL,       0xb6,   0xff,   100},
 603                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   50},
 604                 {       -1,                     -1,     -1,     -1},
 605         };
 606
 607         /*
 608          * Init the analog decoder (not yet supported), but
 609          * it's probably still a good idea.
 610          */
 611         struct {
 612                 unsigned char r[4];
 613                 int len;
 614         } regs[] = {
 615                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 616                 {{ 0x01, 0x02 }, 2},
 617                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 618                 {{ 0x01, 0x00 }, 2},
 619                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 620         };
 621
 622         em28xx_gpio_set(dev, terratec_htc_stick_init);
 623
 624         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 625         usleep_range(10000, 11000);
 626         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 627         usleep_range(10000, 11000);
 628
 629         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 630
 631         for (i = 0; i < ARRAY_SIZE(regs); i++)
 632                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus],
 633                                 regs[i].r, regs[i].len);
 634
 635         em28xx_gpio_set(dev, terratec_htc_stick_end);
 636 };
 637
 638 static void terratec_htc_usb_xs_init(struct em28xx *dev)
 639 {
 640         int i;
 641
 642         struct em28xx_reg_seq terratec_htc_usb_xs_init[] = {
 643                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 644                 {EM2874_R80_GPIO_P0_CTRL,       0xb2,   0xff,   100},
 645                 {EM2874_R80_GPIO_P0_CTRL,       0xb2,   0xff,   50},
 646                 {EM2874_R80_GPIO_P0_CTRL,       0xb6,   0xff,   100},
 647                 {       -1,                     -1,     -1,     -1},
 648         };
 649         struct em28xx_reg_seq terratec_htc_usb_xs_end[] = {
 650                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   100},
 651                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   50},
 652                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 653                 {       -1,                     -1,     -1,     -1},
 654         };
 655
 656         /*
 657          * Init the analog decoder (not yet supported), but
 658          * it's probably still a good idea.
 659          */
 660         struct {
 661                 unsigned char r[4];
 662                 int len;
 663         } regs[] = {
 664                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 665                 {{ 0x01, 0x02 }, 2},
 666                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 667                 {{ 0x01, 0x00 }, 2},
 668                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 669                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 670                 {{ 0x01, 0x00 }, 2},
 671                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 672                 {{ 0x04, 0x00 }, 2},
 673                 {{ 0x00, 0x04 }, 2},
 674                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 675                 {{ 0x04, 0x14 }, 2},
 676                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 677         };
 678
 679         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 680
 681         em28xx_gpio_set(dev, terratec_htc_usb_xs_init);
 682
 683         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 684         usleep_range(10000, 11000);
 685         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 686         usleep_range(10000, 11000);
 687
 688         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 689
 690         for (i = 0; i < ARRAY_SIZE(regs); i++)
 691                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus],
 692                                 regs[i].r, regs[i].len);
 693
 694         em28xx_gpio_set(dev, terratec_htc_usb_xs_end);
 695 };
 696
 697 static void pctv_520e_init(struct em28xx *dev)
 698 {
 699         /*
 700          * Init AVF4910B analog decoder. Looks like I2C traffic to
 701          * digital demodulator and tuner are routed via AVF4910B.
 702          */
 703         int i;
 704         struct {
 705                 unsigned char r[4];
 706                 int len;
 707         } regs[] = {
 708                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 709                 {{ 0x01, 0x02 }, 2},
 710                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 711                 {{ 0x01, 0x00 }, 2},
 712                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 713                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 714                 {{ 0x01, 0x00 }, 2},
 715                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 716         };
 717
 718         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1; /* 0x41 */
 719
 720         for (i = 0; i < ARRAY_SIZE(regs); i++)
 721                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus],
 722                                 regs[i].r, regs[i].len);
 723 };
 724
 725 static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe)
 726 {
 727         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 728         struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
 729         struct em28xx *dev = i2c_bus->dev;
 730 #ifdef CONFIG_GPIOLIB
 731         struct em28xx_dvb *dvb = dev->dvb;
 732         int ret;
 733         unsigned long flags;
 734
 735         if (c->lna == 1)
 736                 flags = GPIOF_OUT_INIT_HIGH; /* enable LNA */
 737         else
 738                 flags = GPIOF_OUT_INIT_LOW; /* disable LNA */
 739
 740         ret = gpio_request_one(dvb->lna_gpio, flags, NULL);
 741         if (ret)
 742                 dev_err(&dev->intf->dev, "gpio request failed %d\n", ret);
 743         else
 744                 gpio_free(dvb->lna_gpio);
 745
 746         return ret;
 747 #else
 748         dev_warn(&dev->intf->dev, "%s: LNA control is disabled (lna=%u)\n",
 749                  KBUILD_MODNAME, c->lna);
 750         return 0;
 751 #endif
 752 }
 753
 754 static int em28xx_pctv_292e_set_lna(struct dvb_frontend *fe)
 755 {
 756         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 757         struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
 758         struct em28xx *dev = i2c_bus->dev;
 759         u8 lna;
 760
 761         if (c->lna == 1)
 762                 lna = 0x01;
 763         else
 764                 lna = 0x00;
 765
 766         return em28xx_write_reg_bits(dev, EM2874_R80_GPIO_P0_CTRL, lna, 0x01);
 767 }
 768
 769 static int em28xx_mt352_terratec_xs_init(struct dvb_frontend *fe)
 770 {
 771         /* Values extracted from a USB trace of the Terratec Windows driver */
 772         static u8 clock_config[]   = { CLOCK_CTL,  0x38, 0x2c };
 773         static u8 reset[]          = { RESET,      0x80 };
 774         static u8 adc_ctl_1_cfg[]  = { ADC_CTL_1,  0x40 };
 775         static u8 agc_cfg[]        = { AGC_TARGET, 0x28, 0xa0 };
 776         static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
 777         static u8 rs_err_cfg[]     = { RS_ERR_PER_1, 0x00, 0x4d };
 778         static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
 779         static u8 trl_nom_cfg[]    = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
 780         static u8 tps_given_cfg[]  = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
 781         static u8 tuner_go[]       = { TUNER_GO, 0x01};
 782
 783         mt352_write(fe, clock_config,   sizeof(clock_config));
 784         usleep_range(200, 250);
 785         mt352_write(fe, reset,          sizeof(reset));
 786         mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));
 787         mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
 788         mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
 789         mt352_write(fe, rs_err_cfg,     sizeof(rs_err_cfg));
 790         mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
 791         mt352_write(fe, trl_nom_cfg,    sizeof(trl_nom_cfg));
 792         mt352_write(fe, tps_given_cfg,  sizeof(tps_given_cfg));
 793         mt352_write(fe, tuner_go,       sizeof(tuner_go));
 794         return 0;
 795 }
 796
 797 static void px_bcud_init(struct em28xx *dev)
 798 {
 799         int i;
 800         struct {
 801                 unsigned char r[4];
 802                 int len;
 803         } regs1[] = {
 804                 {{ 0x0e, 0x77 }, 2},
 805                 {{ 0x0f, 0x77 }, 2},
 806                 {{ 0x03, 0x90 }, 2},
 807         }, regs2[] = {
 808                 {{ 0x07, 0x01 }, 2},
 809                 {{ 0x08, 0x10 }, 2},
 810                 {{ 0x13, 0x00 }, 2},
 811                 {{ 0x17, 0x00 }, 2},
 812                 {{ 0x03, 0x01 }, 2},
 813                 {{ 0x10, 0xb1 }, 2},
 814                 {{ 0x11, 0x40 }, 2},
 815                 {{ 0x85, 0x7a }, 2},
 816                 {{ 0x87, 0x04 }, 2},
 817         };
 818         static struct em28xx_reg_seq gpio[] = {
 819                 {EM28XX_R06_I2C_CLK,            0x40,   0xff,   300},
 820                 {EM2874_R80_GPIO_P0_CTRL,       0xfd,   0xff,   60},
 821                 {EM28XX_R15_RGAIN,              0x20,   0xff,   0},
 822                 {EM28XX_R16_GGAIN,              0x20,   0xff,   0},
 823                 {EM28XX_R17_BGAIN,              0x20,   0xff,   0},
 824                 {EM28XX_R18_ROFFSET,            0x00,   0xff,   0},
 825                 {EM28XX_R19_GOFFSET,            0x00,   0xff,   0},
 826                 {EM28XX_R1A_BOFFSET,            0x00,   0xff,   0},
 827                 {EM28XX_R23_UOFFSET,            0x00,   0xff,   0},
 828                 {EM28XX_R24_VOFFSET,            0x00,   0xff,   0},
 829                 {EM28XX_R26_COMPR,              0x00,   0xff,   0},
 830                 {0x13,                          0x08,   0xff,   0},
 831                 {EM28XX_R12_VINENABLE,          0x27,   0xff,   0},
 832                 {EM28XX_R0C_USBSUSP,            0x10,   0xff,   0},
 833                 {EM28XX_R27_OUTFMT,             0x00,   0xff,   0},
 834                 {EM28XX_R10_VINMODE,            0x00,   0xff,   0},
 835                 {EM28XX_R11_VINCTRL,            0x11,   0xff,   0},
 836                 {EM2874_R50_IR_CONFIG,          0x01,   0xff,   0},
 837                 {EM2874_R5F_TS_ENABLE,          0x80,   0xff,   0},
 838                 {EM28XX_R06_I2C_CLK,            0x46,   0xff,   0},
 839         };
 840         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x46);
 841         /* sleeping ISDB-T */
 842         dev->dvb->i2c_client_demod->addr = 0x14;
 843         for (i = 0; i < ARRAY_SIZE(regs1); i++)
 844                 i2c_master_send(dev->dvb->i2c_client_demod,
 845                                 regs1[i].r, regs1[i].len);
 846         /* sleeping ISDB-S */
 847         dev->dvb->i2c_client_demod->addr = 0x15;
 848         for (i = 0; i < ARRAY_SIZE(regs2); i++)
 849                 i2c_master_send(dev->dvb->i2c_client_demod, regs2[i].r,
 850                                 regs2[i].len);
 851         for (i = 0; i < ARRAY_SIZE(gpio); i++) {
 852                 em28xx_write_reg_bits(dev, gpio[i].reg, gpio[i].val,
 853                                       gpio[i].mask);
 854                 if (gpio[i].sleep > 0)
 855                         msleep(gpio[i].sleep);
 856         }
 857 };
 858
 859 static struct mt352_config terratec_xs_mt352_cfg = {
 860         .demod_address = (0x1e >> 1),
 861         .no_tuner = 1,
 862         .if2 = 45600,
 863         .demod_init = em28xx_mt352_terratec_xs_init,
 864 };
 865
 866 static struct tda10023_config em28xx_tda10023_config = {
 867         .demod_address = 0x0c,
 868         .invert = 1,
 869 };
 870
 871 static struct cxd2820r_config em28xx_cxd2820r_config = {
 872         .i2c_address = (0xd8 >> 1),
 873         .ts_mode = CXD2820R_TS_SERIAL,
 874 };
 875
 876 static struct tda18271_config em28xx_cxd2820r_tda18271_config = {
 877         .output_opt = TDA18271_OUTPUT_LT_OFF,
 878         .gate = TDA18271_GATE_DIGITAL,
 879 };
 880
 881 static struct zl10353_config em28xx_zl10353_no_i2c_gate_dev = {
 882         .demod_address = (0x1e >> 1),
 883         .disable_i2c_gate_ctrl = 1,
 884         .no_tuner = 1,
 885         .parallel_ts = 1,
 886 };
 887
 888 static struct mt2060_config em28xx_mt2060_config = {
 889         .i2c_address = 0x60,
 890 };
 891
 892 static struct qt1010_config em28xx_qt1010_config = {
 893         .i2c_address = 0x62
 894 };
 895
 896 static const struct mb86a20s_config c3tech_duo_mb86a20s_config = {
 897         .demod_address = 0x10,
 898         .is_serial = true,
 899 };
 900
 901 static struct tda18271_std_map mb86a20s_tda18271_config = {
 902         .dvbt_6   = { .if_freq = 4000, .agc_mode = 3, .std = 4,
 903                       .if_lvl = 1, .rfagc_top = 0x37, },
 904 };
 905
 906 static struct tda18271_config c3tech_duo_tda18271_config = {
 907         .std_map = &mb86a20s_tda18271_config,
 908         .gate    = TDA18271_GATE_DIGITAL,
 909         .small_i2c = TDA18271_03_BYTE_CHUNK_INIT,
 910 };
 911
 912 static struct tda18271_std_map drx_j_std_map = {
 913         .atsc_6   = { .if_freq = 5000, .agc_mode = 3, .std = 0, .if_lvl = 1,
 914                       .rfagc_top = 0x37, },
 915         .qam_6    = { .if_freq = 5380, .agc_mode = 3, .std = 3, .if_lvl = 1,
 916                       .rfagc_top = 0x37, },
 917 };
 918
 919 static struct tda18271_config pinnacle_80e_dvb_config = {
 920         .std_map = &drx_j_std_map,
 921         .gate    = TDA18271_GATE_DIGITAL,
 922         .role    = TDA18271_MASTER,
 923 };
 924
 925 static struct lgdt3306a_config hauppauge_01595_lgdt3306a_config = {
 926         .qam_if_khz         = 4000,
 927         .vsb_if_khz         = 3250,
 928         .spectral_inversion = 0,
 929         .deny_i2c_rptr      = 0,
 930         .mpeg_mode          = LGDT3306A_MPEG_SERIAL,
 931         .tpclk_edge         = LGDT3306A_TPCLK_RISING_EDGE,
 932         .tpvalid_polarity   = LGDT3306A_TP_VALID_HIGH,
 933         .xtalMHz            = 25,
 934 };
 935
 936 /* ------------------------------------------------------------------ */
 937
 938 static noinline_for_stack int em28xx_attach_xc3028(u8 addr, struct em28xx *dev)
 939 {
 940         struct dvb_frontend *fe;
 941         struct xc2028_config cfg;
 942         struct xc2028_ctrl ctl;
 943
 944         memset(&cfg, 0, sizeof(cfg));
 945         cfg.i2c_adap  = &dev->i2c_adap[dev->def_i2c_bus];
 946         cfg.i2c_addr  = addr;
 947
 948         memset(&ctl, 0, sizeof(ctl));
 949         em28xx_setup_xc3028(dev, &ctl);
 950         cfg.ctrl  = &ctl;
 951
 952         if (!dev->dvb->fe[0]) {
 953                 dev_err(&dev->intf->dev,
 954                         "dvb frontend not attached. Can't attach xc3028\n");
 955                 return -EINVAL;
 956         }
 957
 958         fe = dvb_attach(xc2028_attach, dev->dvb->fe[0], &cfg);
 959         if (!fe) {
 960                 dev_err(&dev->intf->dev, "xc3028 attach failed\n");
 961                 dvb_frontend_detach(dev->dvb->fe[0]);
 962                 dev->dvb->fe[0] = NULL;
 963                 return -EINVAL;
 964         }
 965
 966         dev_info(&dev->intf->dev, "xc3028 attached\n");
 967
 968         return 0;
 969 }
 970
 971 /* ------------------------------------------------------------------ */
 972
 973 static int em28xx_register_dvb(struct em28xx_dvb *dvb, struct module *module,
 974                                struct em28xx *dev, struct device *device)
 975 {
 976         int result;
 977         bool create_rf_connector = false;
 978
 979         mutex_init(&dvb->lock);
 980
 981         /* register adapter */
 982         result = dvb_register_adapter(&dvb->adapter,
 983                                       dev_name(&dev->intf->dev), module,
 984                                       device, adapter_nr);
 985         if (result < 0) {
 986                 dev_warn(&dev->intf->dev,
 987                          "dvb_register_adapter failed (errno = %d)\n",
 988                          result);
 989                 goto fail_adapter;
 990         }
 991 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
 992         dvb->adapter.mdev = dev->media_dev;
 993 #endif
 994
 995         /* Ensure all frontends negotiate bus access */
 996         dvb->fe[0]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 997         if (dvb->fe[1])
 998                 dvb->fe[1]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 999
1000         dvb->adapter.priv = &dev->i2c_bus[dev->def_i2c_bus];
1001
1002         /* register frontend */
1003         result = dvb_register_frontend(&dvb->adapter, dvb->fe[0]);
1004         if (result < 0) {
1005                 dev_warn(&dev->intf->dev,
1006                          "dvb_register_frontend failed (errno = %d)\n",
1007                          result);
1008                 goto fail_frontend0;
1009         }
1010
1011         /* register 2nd frontend */
1012         if (dvb->fe[1]) {
1013                 result = dvb_register_frontend(&dvb->adapter, dvb->fe[1]);
1014                 if (result < 0) {
1015                         dev_warn(&dev->intf->dev,
1016                                  "2nd dvb_register_frontend failed (errno = %d)\n",
1017                                  result);
1018                         goto fail_frontend1;
1019                 }
1020         }
1021
1022         /* register demux stuff */
1023         dvb->demux.dmx.capabilities =
1024                 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
1025                 DMX_MEMORY_BASED_FILTERING;
1026         dvb->demux.priv       = dvb;
1027         dvb->demux.filternum  = 256;
1028         dvb->demux.feednum    = 256;
1029         dvb->demux.start_feed = em28xx_start_feed;
1030         dvb->demux.stop_feed  = em28xx_stop_feed;
1031
1032         result = dvb_dmx_init(&dvb->demux);
1033         if (result < 0) {
1034                 dev_warn(&dev->intf->dev,
1035                          "dvb_dmx_init failed (errno = %d)\n",
1036                          result);
1037                 goto fail_dmx;
1038         }
1039
1040         dvb->dmxdev.filternum    = 256;
1041         dvb->dmxdev.demux        = &dvb->demux.dmx;
1042         dvb->dmxdev.capabilities = 0;
1043         result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
1044         if (result < 0) {
1045                 dev_warn(&dev->intf->dev,
1046                          "dvb_dmxdev_init failed (errno = %d)\n",
1047                          result);
1048                 goto fail_dmxdev;
1049         }
1050
1051         dvb->fe_hw.source = DMX_FRONTEND_0;
1052         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
1053         if (result < 0) {
1054                 dev_warn(&dev->intf->dev,
1055                          "add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
1056                          result);
1057                 goto fail_fe_hw;
1058         }
1059
1060         dvb->fe_mem.source = DMX_MEMORY_FE;
1061         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
1062         if (result < 0) {
1063                 dev_warn(&dev->intf->dev,
1064                          "add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
1065                          result);
1066                 goto fail_fe_mem;
1067         }
1068
1069         result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
1070         if (result < 0) {
1071                 dev_warn(&dev->intf->dev,
1072                          "connect_frontend failed (errno = %d)\n",
1073                          result);
1074                 goto fail_fe_conn;
1075         }
1076
1077         /* register network adapter */
1078         dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
1079
1080         /* If the analog part won't create RF connectors, DVB will do it */
1081         if (!dev->has_video || dev->tuner_type == TUNER_ABSENT)
1082                 create_rf_connector = true;
1083
1084         result = dvb_create_media_graph(&dvb->adapter, create_rf_connector);
1085         if (result < 0)
1086                 goto fail_create_graph;
1087
1088         return 0;
1089
1090 fail_create_graph:
1091         dvb_net_release(&dvb->net);
1092 fail_fe_conn:
1093         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
1094 fail_fe_mem:
1095         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
1096 fail_fe_hw:
1097         dvb_dmxdev_release(&dvb->dmxdev);
1098 fail_dmxdev:
1099         dvb_dmx_release(&dvb->demux);
1100 fail_dmx:
1101         if (dvb->fe[1])
1102                 dvb_unregister_frontend(dvb->fe[1]);
1103         dvb_unregister_frontend(dvb->fe[0]);
1104 fail_frontend1:
1105         if (dvb->fe[1])
1106                 dvb_frontend_detach(dvb->fe[1]);
1107 fail_frontend0:
1108         dvb_frontend_detach(dvb->fe[0]);
1109         dvb_unregister_adapter(&dvb->adapter);
1110 fail_adapter:
1111         return result;
1112 }
1113
1114 static void em28xx_unregister_dvb(struct em28xx_dvb *dvb)
1115 {
1116         dvb_net_release(&dvb->net);
1117         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
1118         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
1119         dvb_dmxdev_release(&dvb->dmxdev);
1120         dvb_dmx_release(&dvb->demux);
1121         if (dvb->fe[1])
1122                 dvb_unregister_frontend(dvb->fe[1]);
1123         dvb_unregister_frontend(dvb->fe[0]);
1124         if (dvb->fe[1] && !dvb->dont_attach_fe1)
1125                 dvb_frontend_detach(dvb->fe[1]);
1126         dvb_frontend_detach(dvb->fe[0]);
1127         dvb_unregister_adapter(&dvb->adapter);
1128 }
1129
1130 static int em28174_dvb_init_pctv_460e(struct em28xx *dev)
1131 {
1132         struct em28xx_dvb *dvb = dev->dvb;
1133         struct tda10071_platform_data tda10071_pdata = {};
1134         struct a8293_platform_data a8293_pdata = {};
1135
1136         /* attach demod + tuner combo */
1137         tda10071_pdata.clk = 40444000; /* 40.444 MHz */
1138         tda10071_pdata.i2c_wr_max = 64;
1139         tda10071_pdata.ts_mode = TDA10071_TS_SERIAL;
1140         tda10071_pdata.pll_multiplier = 20;
1141         tda10071_pdata.tuner_i2c_addr = 0x14;
1142
1143         dvb->i2c_client_demod = dvb_module_probe("tda10071", "tda10071_cx24118",
1144                                                  &dev->i2c_adap[dev->def_i2c_bus],
1145                                                  0x55, &tda10071_pdata);
1146         if (!dvb->i2c_client_demod)
1147                 return -ENODEV;
1148
1149         dvb->fe[0] = tda10071_pdata.get_dvb_frontend(dvb->i2c_client_demod);
1150
1151         /* attach SEC */
1152         a8293_pdata.dvb_frontend = dvb->fe[0];
1153
1154         dvb->i2c_client_sec = dvb_module_probe("a8293", NULL,
1155                                                &dev->i2c_adap[dev->def_i2c_bus],
1156                                                0x08, &a8293_pdata);
1157         if (!dvb->i2c_client_sec) {
1158                 dvb_module_release(dvb->i2c_client_demod);
1159                 return -ENODEV;
1160         }
1161
1162         return 0;
1163 }
1164
1165 static int em28178_dvb_init_pctv_461e(struct em28xx *dev)
1166 {
1167         struct em28xx_dvb *dvb = dev->dvb;
1168         struct i2c_adapter *i2c_adapter;
1169         struct m88ds3103_platform_data m88ds3103_pdata = {};
1170         struct ts2020_config ts2020_config = {};
1171         struct a8293_platform_data a8293_pdata = {};
1172
1173         /* attach demod */
1174         m88ds3103_pdata.clk = 27000000;
1175         m88ds3103_pdata.i2c_wr_max = 33;
1176         m88ds3103_pdata.ts_mode = M88DS3103_TS_PARALLEL;
1177         m88ds3103_pdata.ts_clk = 16000;
1178         m88ds3103_pdata.ts_clk_pol = 1;
1179         m88ds3103_pdata.agc = 0x99;
1180
1181         dvb->i2c_client_demod = dvb_module_probe("m88ds3103", NULL,
1182                                                  &dev->i2c_adap[dev->def_i2c_bus],
1183                                                  0x68, &m88ds3103_pdata);
1184         if (!dvb->i2c_client_demod)
1185                 return -ENODEV;
1186
1187         dvb->fe[0] = m88ds3103_pdata.get_dvb_frontend(dvb->i2c_client_demod);
1188         i2c_adapter = m88ds3103_pdata.get_i2c_adapter(dvb->i2c_client_demod);
1189
1190         /* attach tuner */
1191         ts2020_config.fe = dvb->fe[0];
1192
1193         dvb->i2c_client_tuner = dvb_module_probe("ts2020", "ts2022",
1194                                                  i2c_adapter,
1195                                                  0x60, &ts2020_config);
1196         if (!dvb->i2c_client_tuner) {
1197                 dvb_module_release(dvb->i2c_client_demod);
1198                 return -ENODEV;
1199         }
1200
1201         /* delegate signal strength measurement to tuner */
1202         dvb->fe[0]->ops.read_signal_strength =
1203                         dvb->fe[0]->ops.tuner_ops.get_rf_strength;
1204
1205         /* attach SEC */
1206         a8293_pdata.dvb_frontend = dvb->fe[0];
1207         dvb->i2c_client_sec = dvb_module_probe("a8293", NULL,
1208                                                &dev->i2c_adap[dev->def_i2c_bus],
1209                                                0x08, &a8293_pdata);
1210         if (!dvb->i2c_client_sec) {
1211                 dvb_module_release(dvb->i2c_client_tuner);
1212                 dvb_module_release(dvb->i2c_client_demod);
1213                 return -ENODEV;
1214         }
1215
1216         return 0;
1217 }
1218
1219 static int em28178_dvb_init_pctv_292e(struct em28xx *dev)
1220 {
1221         struct em28xx_dvb *dvb = dev->dvb;
1222         struct i2c_adapter *adapter;
1223         struct si2168_config si2168_config = {};
1224         struct si2157_config si2157_config = {};
1225
1226         /* attach demod */
1227         si2168_config.i2c_adapter = &adapter;
1228         si2168_config.fe = &dvb->fe[0];
1229         si2168_config.ts_mode = SI2168_TS_PARALLEL;
1230         si2168_config.spectral_inversion = true;
1231
1232         dvb->i2c_client_demod = dvb_module_probe("si2168", NULL,
1233                                                  &dev->i2c_adap[dev->def_i2c_bus],
1234                                                  0x64, &si2168_config);
1235         if (!dvb->i2c_client_demod)
1236                 return -ENODEV;
1237
1238         /* attach tuner */
1239         si2157_config.fe = dvb->fe[0];
1240         si2157_config.if_port = 1;
1241 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
1242         si2157_config.mdev = dev->media_dev;
1243 #endif
1244         dvb->i2c_client_tuner = dvb_module_probe("si2157", NULL,
1245                                                  adapter,
1246                                                  0x60, &si2157_config);
1247         if (!dvb->i2c_client_tuner) {
1248                 dvb_module_release(dvb->i2c_client_demod);
1249                 return -ENODEV;
1250         }
1251         dvb->fe[0]->ops.set_lna = em28xx_pctv_292e_set_lna;
1252
1253         return 0;
1254 }
1255
1256 static int em28178_dvb_init_terratec_t2_stick_hd(struct em28xx *dev)
1257 {
1258         struct em28xx_dvb *dvb = dev->dvb;
1259         struct i2c_adapter *adapter;
1260         struct si2168_config si2168_config = {};
1261         struct si2157_config si2157_config = {};
1262
1263         /* attach demod */
1264         si2168_config.i2c_adapter = &adapter;
1265         si2168_config.fe = &dvb->fe[0];
1266         si2168_config.ts_mode = SI2168_TS_PARALLEL;
1267
1268         dvb->i2c_client_demod = dvb_module_probe("si2168", NULL,
1269                                                  &dev->i2c_adap[dev->def_i2c_bus],
1270                                                  0x64, &si2168_config);
1271         if (!dvb->i2c_client_demod)
1272                 return -ENODEV;
1273
1274         /* attach tuner */
1275         memset(&si2157_config, 0, sizeof(si2157_config));
1276         si2157_config.fe = dvb->fe[0];
1277         si2157_config.if_port = 0;
1278 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
1279         si2157_config.mdev = dev->media_dev;
1280 #endif
1281         dvb->i2c_client_tuner = dvb_module_probe("si2157", "si2146",
1282                                                  adapter,
1283                                                  0x60, &si2157_config);
1284         if (!dvb->i2c_client_tuner) {
1285                 dvb_module_release(dvb->i2c_client_demod);
1286                 return -ENODEV;
1287         }
1288
1289         return 0;
1290 }
1291
1292 static int em28178_dvb_init_plex_px_bcud(struct em28xx *dev)
1293 {
1294         struct em28xx_dvb *dvb = dev->dvb;
1295         struct tc90522_config tc90522_config = {};
1296         struct qm1d1c0042_config qm1d1c0042_config = {};
1297
1298         /* attach demod */
1299         dvb->i2c_client_demod = dvb_module_probe("tc90522", "tc90522sat",
1300                                                  &dev->i2c_adap[dev->def_i2c_bus],
1301                                                  0x15, &tc90522_config);
1302         if (!dvb->i2c_client_demod)
1303                 return -ENODEV;
1304
1305         /* attach tuner */
1306         qm1d1c0042_config.fe = tc90522_config.fe;
1307         qm1d1c0042_config.lpf = 1;
1308
1309         dvb->i2c_client_tuner = dvb_module_probe("qm1d1c0042", NULL,
1310                                                  tc90522_config.tuner_i2c,
1311                                                  0x61, &qm1d1c0042_config);
1312         if (!dvb->i2c_client_tuner) {
1313                 dvb_module_release(dvb->i2c_client_demod);
1314                 return -ENODEV;
1315         }
1316
1317         dvb->fe[0] = tc90522_config.fe;
1318         px_bcud_init(dev);
1319
1320         return 0;
1321 }
1322
1323 static int em28174_dvb_init_hauppauge_wintv_dualhd_dvb(struct em28xx *dev)
1324 {
1325         struct em28xx_dvb *dvb = dev->dvb;
1326         struct i2c_adapter *adapter;
1327         struct si2168_config si2168_config = {};
1328         struct si2157_config si2157_config = {};
1329         unsigned char addr;
1330
1331         /* attach demod */
1332         si2168_config.i2c_adapter = &adapter;
1333         si2168_config.fe = &dvb->fe[0];
1334         si2168_config.ts_mode = SI2168_TS_SERIAL;
1335         si2168_config.spectral_inversion = true;
1336         addr = (dev->ts == PRIMARY_TS) ? 0x64 : 0x67;
1337
1338         dvb->i2c_client_demod = dvb_module_probe("si2168", NULL,
1339                                                  &dev->i2c_adap[dev->def_i2c_bus],
1340                                                  addr, &si2168_config);
1341         if (!dvb->i2c_client_demod)
1342                 return -ENODEV;
1343
1344         /* attach tuner */
1345         memset(&si2157_config, 0, sizeof(si2157_config));
1346         si2157_config.fe = dvb->fe[0];
1347         si2157_config.if_port = 1;
1348 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
1349         si2157_config.mdev = dev->media_dev;
1350 #endif
1351         addr = (dev->ts == PRIMARY_TS) ? 0x60 : 0x63;
1352
1353         dvb->i2c_client_tuner = dvb_module_probe("si2157", NULL,
1354                                                  adapter,
1355                                                  addr, &si2157_config);
1356         if (!dvb->i2c_client_tuner) {
1357                 dvb_module_release(dvb->i2c_client_demod);
1358                 return -ENODEV;
1359         }
1360
1361         return 0;
1362 }
1363
1364 static int em28174_dvb_init_hauppauge_wintv_dualhd_01595(struct em28xx *dev)
1365 {
1366         struct em28xx_dvb *dvb = dev->dvb;
1367         struct i2c_adapter *adapter;
1368         struct lgdt3306a_config lgdt3306a_config =  {};
1369         struct si2157_config si2157_config = {};
1370         unsigned char addr;
1371
1372         /* attach demod */
1373         lgdt3306a_config = hauppauge_01595_lgdt3306a_config;
1374         lgdt3306a_config.fe = &dvb->fe[0];
1375         lgdt3306a_config.i2c_adapter = &adapter;
1376         addr = (dev->ts == PRIMARY_TS) ? 0x59 : 0x0e;
1377
1378         dvb->i2c_client_demod = dvb_module_probe("lgdt3306a", NULL,
1379                                                  &dev->i2c_adap[dev->def_i2c_bus],
1380                                                  addr, &lgdt3306a_config);
1381         if (!dvb->i2c_client_demod)
1382                 return -ENODEV;
1383
1384         /* attach tuner */
1385         si2157_config.fe = dvb->fe[0];
1386         si2157_config.if_port = 1;
1387         si2157_config.inversion = 1;
1388 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
1389         si2157_config.mdev = dev->media_dev;
1390 #endif
1391         addr = (dev->ts == PRIMARY_TS) ? 0x60 : 0x62;
1392
1393         dvb->i2c_client_tuner = dvb_module_probe("si2157", NULL,
1394                                                  adapter,
1395                                                  0x60, &si2157_config);
1396         if (!dvb->i2c_client_tuner) {
1397                 dvb_module_release(dvb->i2c_client_demod);
1398                 return -ENODEV;
1399         }
1400
1401         return 0;
1402 }
1403
1404 static int em28xx_dvb_init(struct em28xx *dev)
1405 {
1406         int result = 0, dvb_alt = 0;
1407         struct em28xx_dvb *dvb;
1408         struct usb_device *udev;
1409
1410         if (dev->is_audio_only) {
1411                 /* Shouldn't initialize IR for this interface */
1412                 return 0;
1413         }
1414
1415         if (!dev->board.has_dvb) {
1416                 /* This device does not support the extension */
1417                 return 0;
1418         }
1419
1420         dev_info(&dev->intf->dev, "Binding DVB extension\n");
1421
1422         dvb = kzalloc(sizeof(*dvb), GFP_KERNEL);
1423         if (!dvb)
1424                 return -ENOMEM;
1425
1426         dev->dvb = dvb;
1427         dvb->fe[0] = NULL;
1428         dvb->fe[1] = NULL;
1429
1430         /* pre-allocate DVB usb transfer buffers */
1431         if (dev->dvb_xfer_bulk) {
1432                 result = em28xx_alloc_urbs(dev, EM28XX_DIGITAL_MODE,
1433                                            dev->dvb_xfer_bulk,
1434                                            EM28XX_DVB_NUM_BUFS,
1435                                            512,
1436                                            EM28XX_DVB_BULK_PACKET_MULTIPLIER);
1437         } else {
1438                 result = em28xx_alloc_urbs(dev, EM28XX_DIGITAL_MODE,
1439                                            dev->dvb_xfer_bulk,
1440                                            EM28XX_DVB_NUM_BUFS,
1441                                            dev->dvb_max_pkt_size_isoc,
1442                                            EM28XX_DVB_NUM_ISOC_PACKETS);
1443         }
1444         if (result) {
1445                 dev_err(&dev->intf->dev,
1446                         "failed to pre-allocate USB transfer buffers for DVB.\n");
1447                 kfree(dvb);
1448                 dev->dvb = NULL;
1449                 return result;
1450         }
1451
1452         mutex_lock(&dev->lock);
1453         em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
1454         /* init frontend */
1455         switch (dev->model) {
1456         case EM2874_BOARD_LEADERSHIP_ISDBT:
1457                 dvb->fe[0] = dvb_attach(s921_attach,
1458                                         &sharp_isdbt,
1459                                         &dev->i2c_adap[dev->def_i2c_bus]);
1460
1461                 if (!dvb->fe[0]) {
1462                         result = -EINVAL;
1463                         goto out_free;
1464                 }
1465
1466                 break;
1467         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
1468         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
1469         case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
1470         case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
1471                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
1472                                         &em2880_lgdt3303_dev,
1473                                         &dev->i2c_adap[dev->def_i2c_bus]);
1474                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1475                         result = -EINVAL;
1476                         goto out_free;
1477                 }
1478                 break;
1479         case EM2880_BOARD_KWORLD_DVB_310U:
1480                 dvb->fe[0] = dvb_attach(zl10353_attach,
1481                                         &em28xx_zl10353_with_xc3028,
1482                                         &dev->i2c_adap[dev->def_i2c_bus]);
1483                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1484                         result = -EINVAL;
1485                         goto out_free;
1486                 }
1487                 break;
1488         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
1489         case EM2882_BOARD_TERRATEC_HYBRID_XS:
1490         case EM2880_BOARD_EMPIRE_DUAL_TV:
1491                 dvb->fe[0] = dvb_attach(zl10353_attach,
1492                                         &em28xx_zl10353_xc3028_no_i2c_gate,
1493                                         &dev->i2c_adap[dev->def_i2c_bus]);
1494                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1495                         result = -EINVAL;
1496                         goto out_free;
1497                 }
1498                 break;
1499         case EM2880_BOARD_TERRATEC_HYBRID_XS:
1500         case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
1501         case EM2881_BOARD_PINNACLE_HYBRID_PRO:
1502         case EM2882_BOARD_DIKOM_DK300:
1503         case EM2882_BOARD_KWORLD_VS_DVBT:
1504                 /*
1505                  * Those boards could have either a zl10353 or a mt352.
1506                  * If the chip id isn't for zl10353, try mt352.
1507                  */
1508                 dvb->fe[0] = dvb_attach(zl10353_attach,
1509                                         &em28xx_zl10353_xc3028_no_i2c_gate,
1510                                         &dev->i2c_adap[dev->def_i2c_bus]);
1511                 if (!dvb->fe[0])
1512                         dvb->fe[0] = dvb_attach(mt352_attach,
1513                                                 &terratec_xs_mt352_cfg,
1514                                                 &dev->i2c_adap[dev->def_i2c_bus]);
1515
1516                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1517                         result = -EINVAL;
1518                         goto out_free;
1519                 }
1520                 break;
1521         case EM2870_BOARD_TERRATEC_XS_MT2060:
1522                 dvb->fe[0] = dvb_attach(zl10353_attach,
1523                                         &em28xx_zl10353_no_i2c_gate_dev,
1524                                         &dev->i2c_adap[dev->def_i2c_bus]);
1525                 if (dvb->fe[0]) {
1526                         dvb_attach(mt2060_attach, dvb->fe[0],
1527                                    &dev->i2c_adap[dev->def_i2c_bus],
1528                                    &em28xx_mt2060_config, 1220);
1529                 }
1530                 break;
1531         case EM2870_BOARD_KWORLD_355U:
1532                 dvb->fe[0] = dvb_attach(zl10353_attach,
1533                                         &em28xx_zl10353_no_i2c_gate_dev,
1534                                         &dev->i2c_adap[dev->def_i2c_bus]);
1535                 if (dvb->fe[0])
1536                         dvb_attach(qt1010_attach, dvb->fe[0],
1537                                    &dev->i2c_adap[dev->def_i2c_bus],
1538                                    &em28xx_qt1010_config);
1539                 break;
1540         case EM2883_BOARD_KWORLD_HYBRID_330U:
1541         case EM2882_BOARD_EVGA_INDTUBE:
1542                 dvb->fe[0] = dvb_attach(s5h1409_attach,
1543                                         &em28xx_s5h1409_with_xc3028,
1544                                         &dev->i2c_adap[dev->def_i2c_bus]);
1545                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1546                         result = -EINVAL;
1547                         goto out_free;
1548                 }
1549                 break;
1550         case EM2882_BOARD_KWORLD_ATSC_315U:
1551                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
1552                                         &em2880_lgdt3303_dev,
1553                                         &dev->i2c_adap[dev->def_i2c_bus]);
1554                 if (dvb->fe[0]) {
1555                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1556                                         &dev->i2c_adap[dev->def_i2c_bus],
1557                                         0x61, TUNER_THOMSON_DTT761X)) {
1558                                 result = -EINVAL;
1559                                 goto out_free;
1560                         }
1561                 }
1562                 break;
1563         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
1564         case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
1565                 dvb->fe[0] = dvb_attach(drxd_attach, &em28xx_drxd, NULL,
1566                                         &dev->i2c_adap[dev->def_i2c_bus],
1567                                         &dev->intf->dev);
1568                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1569                         result = -EINVAL;
1570                         goto out_free;
1571                 }
1572                 break;
1573         case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
1574                 /* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
1575                 dvb->fe[0] = dvb_attach(tda10023_attach,
1576                                         &em28xx_tda10023_config,
1577                                         &dev->i2c_adap[dev->def_i2c_bus],
1578                                         0x48);
1579                 if (dvb->fe[0]) {
1580                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1581                                         &dev->i2c_adap[dev->def_i2c_bus],
1582                                         0x60, TUNER_PHILIPS_CU1216L)) {
1583                                 result = -EINVAL;
1584                                 goto out_free;
1585                         }
1586                 }
1587                 break;
1588         case EM2870_BOARD_KWORLD_A340:
1589                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1590                                         &em2870_lgdt3304_dev,
1591                                         &dev->i2c_adap[dev->def_i2c_bus]);
1592                 if (!dvb->fe[0]) {
1593                         result = -EINVAL;
1594                         goto out_free;
1595                 }
1596                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1597                                 &dev->i2c_adap[dev->def_i2c_bus],
1598                                 &kworld_a340_config)) {
1599                         dvb_frontend_detach(dvb->fe[0]);
1600                         result = -EINVAL;
1601                         goto out_free;
1602                 }
1603                 break;
1604         case EM28174_BOARD_PCTV_290E:
1605                 /* set default GPIO0 for LNA, used if GPIOLIB is undefined */
1606                 dvb->lna_gpio = CXD2820R_GPIO_E | CXD2820R_GPIO_O |
1607                                 CXD2820R_GPIO_L;
1608                 dvb->fe[0] = dvb_attach(cxd2820r_attach,
1609                                         &em28xx_cxd2820r_config,
1610                                         &dev->i2c_adap[dev->def_i2c_bus],
1611                                         &dvb->lna_gpio);
1612                 if (dvb->fe[0]) {
1613                         /* FE 0 attach tuner */
1614                         if (!dvb_attach(tda18271_attach,
1615                                         dvb->fe[0],
1616                                         0x60,
1617                                         &dev->i2c_adap[dev->def_i2c_bus],
1618                                         &em28xx_cxd2820r_tda18271_config)) {
1619                                 dvb_frontend_detach(dvb->fe[0]);
1620                                 result = -EINVAL;
1621                                 goto out_free;
1622                         }
1623
1624 #ifdef CONFIG_GPIOLIB
1625                         /* enable LNA for DVB-T, DVB-T2 and DVB-C */
1626                         result = gpio_request_one(dvb->lna_gpio,
1627                                                   GPIOF_OUT_INIT_LOW, NULL);
1628                         if (result)
1629                                 dev_err(&dev->intf->dev,
1630                                         "gpio request failed %d\n",
1631                                         result);
1632                         else
1633                                 gpio_free(dvb->lna_gpio);
1634
1635                         result = 0; /* continue even set LNA fails */
1636 #endif
1637                         dvb->fe[0]->ops.set_lna = em28xx_pctv_290e_set_lna;
1638                 }
1639
1640                 break;
1641         case EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C:
1642         {
1643                 struct xc5000_config cfg = {};
1644
1645                 hauppauge_hvr930c_init(dev);
1646
1647                 dvb->fe[0] = dvb_attach(drxk_attach,
1648                                         &hauppauge_930c_drxk,
1649                                         &dev->i2c_adap[dev->def_i2c_bus]);
1650                 if (!dvb->fe[0]) {
1651                         result = -EINVAL;
1652                         goto out_free;
1653                 }
1654                 /* FIXME: do we need a pll semaphore? */
1655                 dvb->fe[0]->sec_priv = dvb;
1656                 sema_init(&dvb->pll_mutex, 1);
1657                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1658                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1659
1660                 /* Attach xc5000 */
1661                 cfg.i2c_address  = 0x61;
1662                 cfg.if_khz = 4000;
1663
1664                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1665                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1666                 if (!dvb_attach(xc5000_attach, dvb->fe[0],
1667                                 &dev->i2c_adap[dev->def_i2c_bus], &cfg)) {
1668                         result = -EINVAL;
1669                         goto out_free;
1670                 }
1671                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1672                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1673
1674                 break;
1675         }
1676         case EM2884_BOARD_TERRATEC_H5:
1677                 terratec_h5_init(dev);
1678
1679                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_h5_drxk,
1680                                         &dev->i2c_adap[dev->def_i2c_bus]);
1681                 if (!dvb->fe[0]) {
1682                         result = -EINVAL;
1683                         goto out_free;
1684                 }
1685                 /* FIXME: do we need a pll semaphore? */
1686                 dvb->fe[0]->sec_priv = dvb;
1687                 sema_init(&dvb->pll_mutex, 1);
1688                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1689                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1690
1691                 /* Attach tda18271 to DVB-C frontend */
1692                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1693                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1694                 if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0],
1695                                 &dev->i2c_adap[dev->def_i2c_bus], 0x60)) {
1696                         result = -EINVAL;
1697                         goto out_free;
1698                 }
1699                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1700                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1701
1702                 break;
1703         case EM2884_BOARD_C3TECH_DIGITAL_DUO:
1704                 dvb->fe[0] = dvb_attach(mb86a20s_attach,
1705                                         &c3tech_duo_mb86a20s_config,
1706                                         &dev->i2c_adap[dev->def_i2c_bus]);
1707                 if (dvb->fe[0])
1708                         dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1709                                    &dev->i2c_adap[dev->def_i2c_bus],
1710                                    &c3tech_duo_tda18271_config);
1711                 break;
1712         case EM28174_BOARD_PCTV_460E:
1713                 result = em28174_dvb_init_pctv_460e(dev);
1714                 if (result)
1715                         goto out_free;
1716                 break;
1717         case EM2874_BOARD_DELOCK_61959:
1718         case EM2874_BOARD_MAXMEDIA_UB425_TC:
1719                 /* attach demodulator */
1720                 dvb->fe[0] = dvb_attach(drxk_attach, &maxmedia_ub425_tc_drxk,
1721                                         &dev->i2c_adap[dev->def_i2c_bus]);
1722
1723                 if (dvb->fe[0]) {
1724                         /* disable I2C-gate */
1725                         dvb->fe[0]->ops.i2c_gate_ctrl = NULL;
1726
1727                         /* attach tuner */
1728                         if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1729                                         &dev->i2c_adap[dev->def_i2c_bus],
1730                                         &em28xx_cxd2820r_tda18271_config)) {
1731                                 dvb_frontend_detach(dvb->fe[0]);
1732                                 result = -EINVAL;
1733                                 goto out_free;
1734                         }
1735                 }
1736                 break;
1737         case EM2884_BOARD_PCTV_510E:
1738         case EM2884_BOARD_PCTV_520E:
1739                 pctv_520e_init(dev);
1740
1741                 /* attach demodulator */
1742                 dvb->fe[0] = dvb_attach(drxk_attach, &pctv_520e_drxk,
1743                                         &dev->i2c_adap[dev->def_i2c_bus]);
1744
1745                 if (dvb->fe[0]) {
1746                         /* attach tuner */
1747                         if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1748                                         &dev->i2c_adap[dev->def_i2c_bus],
1749                                         &em28xx_cxd2820r_tda18271_config)) {
1750                                 dvb_frontend_detach(dvb->fe[0]);
1751                                 result = -EINVAL;
1752                                 goto out_free;
1753                         }
1754                 }
1755                 break;
1756         case EM2884_BOARD_ELGATO_EYETV_HYBRID_2008:
1757         case EM2884_BOARD_CINERGY_HTC_STICK:
1758         case EM2884_BOARD_TERRATEC_H6:
1759                 terratec_htc_stick_init(dev);
1760
1761                 /* attach demodulator */
1762                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1763                                         &dev->i2c_adap[dev->def_i2c_bus]);
1764                 if (!dvb->fe[0]) {
1765                         result = -EINVAL;
1766                         goto out_free;
1767                 }
1768
1769                 /* Attach the demodulator. */
1770                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1771                                 &dev->i2c_adap[dev->def_i2c_bus],
1772                                 &em28xx_cxd2820r_tda18271_config)) {
1773                         result = -EINVAL;
1774                         goto out_free;
1775                 }
1776                 break;
1777         case EM2884_BOARD_TERRATEC_HTC_USB_XS:
1778                 terratec_htc_usb_xs_init(dev);
1779
1780                 /* attach demodulator */
1781                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1782                                         &dev->i2c_adap[dev->def_i2c_bus]);
1783                 if (!dvb->fe[0]) {
1784                         result = -EINVAL;
1785                         goto out_free;
1786                 }
1787
1788                 /* Attach the demodulator. */
1789                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1790                                 &dev->i2c_adap[dev->def_i2c_bus],
1791                                 &em28xx_cxd2820r_tda18271_config)) {
1792                         result = -EINVAL;
1793                         goto out_free;
1794                 }
1795                 break;
1796         case EM2874_BOARD_KWORLD_UB435Q_V2:
1797                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1798                                         &em2874_lgdt3305_dev,
1799                                         &dev->i2c_adap[dev->def_i2c_bus]);
1800                 if (!dvb->fe[0]) {
1801                         result = -EINVAL;
1802                         goto out_free;
1803                 }
1804
1805                 /* Attach the demodulator. */
1806                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1807                                 &dev->i2c_adap[dev->def_i2c_bus],
1808                                 &kworld_ub435q_v2_config)) {
1809                         result = -EINVAL;
1810                         goto out_free;
1811                 }
1812                 break;
1813         case EM2874_BOARD_KWORLD_UB435Q_V3:
1814         {
1815                 struct i2c_adapter *adapter = &dev->i2c_adap[dev->def_i2c_bus];
1816
1817                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1818                                         &em2874_lgdt3305_nogate_dev,
1819                                         &dev->i2c_adap[dev->def_i2c_bus]);
1820                 if (!dvb->fe[0]) {
1821                         result = -EINVAL;
1822                         goto out_free;
1823                 }
1824
1825                 /* attach tuner */
1826                 kworld_ub435q_v3_config.fe = dvb->fe[0];
1827
1828                 dvb->i2c_client_tuner = dvb_module_probe("tda18212", NULL,
1829                                                          adapter, 0x60,
1830                                                          &kworld_ub435q_v3_config);
1831                 if (!dvb->i2c_client_tuner) {
1832                         dvb_frontend_detach(dvb->fe[0]);
1833                         result = -ENODEV;
1834                         goto out_free;
1835                 }
1836                 break;
1837         }
1838         case EM2874_BOARD_PCTV_HD_MINI_80E:
1839                 dvb->fe[0] = dvb_attach(drx39xxj_attach,
1840                                         &dev->i2c_adap[dev->def_i2c_bus]);
1841                 if (dvb->fe[0]) {
1842                         dvb->fe[0] = dvb_attach(tda18271_attach, dvb->fe[0],
1843                                                 0x60,
1844                                                 &dev->i2c_adap[dev->def_i2c_bus],
1845                                                 &pinnacle_80e_dvb_config);
1846                         if (!dvb->fe[0]) {
1847                                 result = -EINVAL;
1848                                 goto out_free;
1849                         }
1850                 }
1851                 break;
1852         case EM28178_BOARD_PCTV_461E:
1853                 result = em28178_dvb_init_pctv_461e(dev);
1854                 if (result)
1855                         goto out_free;
1856                 break;
1857         case EM28178_BOARD_PCTV_292E:
1858                 result = em28178_dvb_init_pctv_292e(dev);
1859                 if (result)
1860                         goto out_free;
1861                 break;
1862         case EM28178_BOARD_TERRATEC_T2_STICK_HD:
1863                 result = em28178_dvb_init_terratec_t2_stick_hd(dev);
1864                 if (result)
1865                         goto out_free;
1866                 break;
1867         case EM28178_BOARD_PLEX_PX_BCUD:
1868                 result = em28178_dvb_init_plex_px_bcud(dev);
1869                 if (result)
1870                         goto out_free;
1871                 break;
1872         case EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_DVB:
1873                 result = em28174_dvb_init_hauppauge_wintv_dualhd_dvb(dev);
1874                 if (result)
1875                         goto out_free;
1876                 break;
1877         case EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_01595:
1878                 result = em28174_dvb_init_hauppauge_wintv_dualhd_01595(dev);
1879                 if (result)
1880                         goto out_free;
1881                 break;
1882         default:
1883                 dev_err(&dev->intf->dev,
1884                         "The frontend of your DVB/ATSC card isn't supported yet\n");
1885                 break;
1886         }
1887         if (!dvb->fe[0]) {
1888                 dev_err(&dev->intf->dev, "frontend initialization failed\n");
1889                 result = -EINVAL;
1890                 goto out_free;
1891         }
1892         /* define general-purpose callback pointer */
1893         dvb->fe[0]->callback = em28xx_tuner_callback;
1894         if (dvb->fe[1])
1895                 dvb->fe[1]->callback = em28xx_tuner_callback;
1896
1897         /* register everything */
1898         result = em28xx_register_dvb(dvb, THIS_MODULE, dev, &dev->intf->dev);
1899
1900         if (result < 0)
1901                 goto out_free;
1902
1903         if (dev->dvb_xfer_bulk) {
1904                 dvb_alt = 0;
1905         } else { /* isoc */
1906                 dvb_alt = dev->dvb_alt_isoc;
1907         }
1908
1909         udev = interface_to_usbdev(dev->intf);
1910         usb_set_interface(udev, dev->ifnum, dvb_alt);
1911         dev_info(&dev->intf->dev, "DVB extension successfully initialized\n");
1912
1913         kref_get(&dev->ref);
1914
1915 ret:
1916         em28xx_set_mode(dev, EM28XX_SUSPEND);
1917         mutex_unlock(&dev->lock);
1918         return result;
1919
1920 out_free:
1921         kfree(dvb);
1922         dev->dvb = NULL;
1923         goto ret;
1924 }
1925
1926 static inline void prevent_sleep(struct dvb_frontend_ops *ops)
1927 {
1928         ops->set_voltage = NULL;
1929         ops->sleep = NULL;
1930         ops->tuner_ops.sleep = NULL;
1931 }
1932
1933 static int em28xx_dvb_fini(struct em28xx *dev)
1934 {
1935         struct em28xx_dvb *dvb;
1936
1937         if (dev->is_audio_only) {
1938                 /* Shouldn't initialize IR for this interface */
1939                 return 0;
1940         }
1941
1942         if (!dev->board.has_dvb) {
1943                 /* This device does not support the extension */
1944                 return 0;
1945         }
1946
1947         if (!dev->dvb)
1948                 return 0;
1949
1950         dev_info(&dev->intf->dev, "Closing DVB extension\n");
1951
1952         dvb = dev->dvb;
1953
1954         em28xx_uninit_usb_xfer(dev, EM28XX_DIGITAL_MODE);
1955
1956         if (dev->disconnected) {
1957                 /*
1958                  * We cannot tell the device to sleep
1959                  * once it has been unplugged.
1960                  */
1961                 if (dvb->fe[0]) {
1962                         prevent_sleep(&dvb->fe[0]->ops);
1963                         dvb->fe[0]->exit = DVB_FE_DEVICE_REMOVED;
1964                 }
1965                 if (dvb->fe[1]) {
1966                         prevent_sleep(&dvb->fe[1]->ops);
1967                         dvb->fe[1]->exit = DVB_FE_DEVICE_REMOVED;
1968                 }
1969         }
1970
1971         em28xx_unregister_dvb(dvb);
1972
1973         /* release I2C module bindings */
1974         dvb_module_release(dvb->i2c_client_sec);
1975         dvb_module_release(dvb->i2c_client_tuner);
1976         dvb_module_release(dvb->i2c_client_demod);
1977
1978         kfree(dvb);
1979         dev->dvb = NULL;
1980         kref_put(&dev->ref, em28xx_free_device);
1981
1982         return 0;
1983 }
1984
1985 static int em28xx_dvb_suspend(struct em28xx *dev)
1986 {
1987         int ret = 0;
1988
1989         if (dev->is_audio_only)
1990                 return 0;
1991
1992         if (!dev->board.has_dvb)
1993                 return 0;
1994
1995         dev_info(&dev->intf->dev, "Suspending DVB extension\n");
1996         if (dev->dvb) {
1997                 struct em28xx_dvb *dvb = dev->dvb;
1998
1999                 if (dvb->fe[0]) {
2000                         ret = dvb_frontend_suspend(dvb->fe[0]);
2001                         dev_info(&dev->intf->dev, "fe0 suspend %d\n", ret);
2002                 }
2003                 if (dvb->fe[1]) {
2004                         dvb_frontend_suspend(dvb->fe[1]);
2005                         dev_info(&dev->intf->dev, "fe1 suspend %d\n", ret);
2006                 }
2007         }
2008
2009         return 0;
2010 }
2011
2012 static int em28xx_dvb_resume(struct em28xx *dev)
2013 {
2014         int ret = 0;
2015
2016         if (dev->is_audio_only)
2017                 return 0;
2018
2019         if (!dev->board.has_dvb)
2020                 return 0;
2021
2022         dev_info(&dev->intf->dev, "Resuming DVB extension\n");
2023         if (dev->dvb) {
2024                 struct em28xx_dvb *dvb = dev->dvb;
2025
2026                 if (dvb->fe[0]) {
2027                         ret = dvb_frontend_resume(dvb->fe[0]);
2028                         dev_info(&dev->intf->dev, "fe0 resume %d\n", ret);
2029                 }
2030
2031                 if (dvb->fe[1]) {
2032                         ret = dvb_frontend_resume(dvb->fe[1]);
2033                         dev_info(&dev->intf->dev, "fe1 resume %d\n", ret);
2034                 }
2035         }
2036
2037         return 0;
2038 }
2039
2040 static struct em28xx_ops dvb_ops = {
2041         .id   = EM28XX_DVB,
2042         .name = "Em28xx dvb Extension",
2043         .init = em28xx_dvb_init,
2044         .fini = em28xx_dvb_fini,
2045         .suspend = em28xx_dvb_suspend,
2046         .resume = em28xx_dvb_resume,
2047 };
2048
2049 static int __init em28xx_dvb_register(void)
2050 {
2051         return em28xx_register_extension(&dvb_ops);
2052 }
2053
2054 static void __exit em28xx_dvb_unregister(void)
2055 {
2056         em28xx_unregister_extension(&dvb_ops);
2057 }
2058
2059 module_init(em28xx_dvb_register);
2060 module_exit(em28xx_dvb_unregister);