Pileus Git - ~andy/linux/blob - 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 "tda18271.h"
  45 #include "s921.h"
  46 #include "drxd.h"
  47 #include "cxd2820r.h"
  48 #include "tda18271c2dd.h"
  49 #include "drxk.h"
  50 #include "tda10071.h"
  51 #include "a8293.h"
  52 #include "qt1010.h"
  53
  54 MODULE_DESCRIPTION("driver for em28xx based DVB cards");
  55 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
  56 MODULE_LICENSE("GPL");
  57
  58 static unsigned int debug;
  59 module_param(debug, int, 0644);
  60 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
  61
  62 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  63
  64 #define dprintk(level, fmt, arg...) do {                        \
  65 if (debug >= level)                                             \
  66         printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
  67 } while (0)
  68
  69 struct em28xx_dvb {
  70         struct dvb_frontend        *fe[2];
  71
  72         /* feed count management */
  73         struct mutex               lock;
  74         int                        nfeeds;
  75
  76         /* general boilerplate stuff */
  77         struct dvb_adapter         adapter;
  78         struct dvb_demux           demux;
  79         struct dmxdev              dmxdev;
  80         struct dmx_frontend        fe_hw;
  81         struct dmx_frontend        fe_mem;
  82         struct dvb_net             net;
  83
  84         /* Due to DRX-K - probably need changes */
  85         int (*gate_ctrl)(struct dvb_frontend *, int);
  86         struct semaphore      pll_mutex;
  87         bool                    dont_attach_fe1;
  88         int                     lna_gpio;
  89 };
  90
  91
  92 static inline void print_err_status(struct em28xx *dev,
  93                                      int packet, int status)
  94 {
  95         char *errmsg = "Unknown";
  96
  97         switch (status) {
  98         case -ENOENT:
  99                 errmsg = "unlinked synchronuously";
 100                 break;
 101         case -ECONNRESET:
 102                 errmsg = "unlinked asynchronuously";
 103                 break;
 104         case -ENOSR:
 105                 errmsg = "Buffer error (overrun)";
 106                 break;
 107         case -EPIPE:
 108                 errmsg = "Stalled (device not responding)";
 109                 break;
 110         case -EOVERFLOW:
 111                 errmsg = "Babble (bad cable?)";
 112                 break;
 113         case -EPROTO:
 114                 errmsg = "Bit-stuff error (bad cable?)";
 115                 break;
 116         case -EILSEQ:
 117                 errmsg = "CRC/Timeout (could be anything)";
 118                 break;
 119         case -ETIME:
 120                 errmsg = "Device does not respond";
 121                 break;
 122         }
 123         if (packet < 0) {
 124                 dprintk(1, "URB status %d [%s].\n", status, errmsg);
 125         } else {
 126                 dprintk(1, "URB packet %d, status %d [%s].\n",
 127                         packet, status, errmsg);
 128         }
 129 }
 130
 131 static inline int em28xx_dvb_urb_data_copy(struct em28xx *dev, struct urb *urb)
 132 {
 133         int xfer_bulk, num_packets, i;
 134
 135         if (!dev)
 136                 return 0;
 137
 138         if (dev->disconnected)
 139                 return 0;
 140
 141         if (urb->status < 0)
 142                 print_err_status(dev, -1, urb->status);
 143
 144         xfer_bulk = usb_pipebulk(urb->pipe);
 145
 146         if (xfer_bulk) /* bulk */
 147                 num_packets = 1;
 148         else /* isoc */
 149                 num_packets = urb->number_of_packets;
 150
 151         for (i = 0; i < num_packets; i++) {
 152                 if (xfer_bulk) {
 153                         if (urb->status < 0) {
 154                                 print_err_status(dev, i, urb->status);
 155                                 if (urb->status != -EPROTO)
 156                                         continue;
 157                         }
 158                         dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer,
 159                                         urb->actual_length);
 160                 } else {
 161                         if (urb->iso_frame_desc[i].status < 0) {
 162                                 print_err_status(dev, i,
 163                                                  urb->iso_frame_desc[i].status);
 164                                 if (urb->iso_frame_desc[i].status != -EPROTO)
 165                                         continue;
 166                         }
 167                         dvb_dmx_swfilter(&dev->dvb->demux,
 168                                          urb->transfer_buffer +
 169                                          urb->iso_frame_desc[i].offset,
 170                                          urb->iso_frame_desc[i].actual_length);
 171                 }
 172         }
 173
 174         return 0;
 175 }
 176
 177 static int em28xx_start_streaming(struct em28xx_dvb *dvb)
 178 {
 179         int rc;
 180         struct em28xx *dev = dvb->adapter.priv;
 181         int dvb_max_packet_size, packet_multiplier, dvb_alt;
 182
 183         if (dev->dvb_xfer_bulk) {
 184                 if (!dev->dvb_ep_bulk)
 185                         return -ENODEV;
 186                 dvb_max_packet_size = 512; /* USB 2.0 spec */
 187                 packet_multiplier = EM28XX_DVB_BULK_PACKET_MULTIPLIER;
 188                 dvb_alt = 0;
 189         } else { /* isoc */
 190                 if (!dev->dvb_ep_isoc)
 191                         return -ENODEV;
 192                 dvb_max_packet_size = dev->dvb_max_pkt_size_isoc;
 193                 if (dvb_max_packet_size < 0)
 194                         return dvb_max_packet_size;
 195                 packet_multiplier = EM28XX_DVB_NUM_ISOC_PACKETS;
 196                 dvb_alt = dev->dvb_alt_isoc;
 197         }
 198
 199         usb_set_interface(dev->udev, 0, dvb_alt);
 200         rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 201         if (rc < 0)
 202                 return rc;
 203
 204         dprintk(1, "Using %d buffers each with %d x %d bytes\n",
 205                 EM28XX_DVB_NUM_BUFS,
 206                 packet_multiplier,
 207                 dvb_max_packet_size);
 208
 209         return em28xx_init_usb_xfer(dev, EM28XX_DIGITAL_MODE,
 210                                     dev->dvb_xfer_bulk,
 211                                     EM28XX_DVB_NUM_BUFS,
 212                                     dvb_max_packet_size,
 213                                     packet_multiplier,
 214                                     em28xx_dvb_urb_data_copy);
 215 }
 216
 217 static int em28xx_stop_streaming(struct em28xx_dvb *dvb)
 218 {
 219         struct em28xx *dev = dvb->adapter.priv;
 220
 221         em28xx_stop_urbs(dev);
 222
 223         em28xx_set_mode(dev, EM28XX_SUSPEND);
 224
 225         return 0;
 226 }
 227
 228 static int em28xx_start_feed(struct dvb_demux_feed *feed)
 229 {
 230         struct dvb_demux *demux  = feed->demux;
 231         struct em28xx_dvb *dvb = demux->priv;
 232         int rc, ret;
 233
 234         if (!demux->dmx.frontend)
 235                 return -EINVAL;
 236
 237         mutex_lock(&dvb->lock);
 238         dvb->nfeeds++;
 239         rc = dvb->nfeeds;
 240
 241         if (dvb->nfeeds == 1) {
 242                 ret = em28xx_start_streaming(dvb);
 243                 if (ret < 0)
 244                         rc = ret;
 245         }
 246
 247         mutex_unlock(&dvb->lock);
 248         return rc;
 249 }
 250
 251 static int em28xx_stop_feed(struct dvb_demux_feed *feed)
 252 {
 253         struct dvb_demux *demux  = feed->demux;
 254         struct em28xx_dvb *dvb = demux->priv;
 255         int err = 0;
 256
 257         mutex_lock(&dvb->lock);
 258         dvb->nfeeds--;
 259
 260         if (0 == dvb->nfeeds)
 261                 err = em28xx_stop_streaming(dvb);
 262
 263         mutex_unlock(&dvb->lock);
 264         return err;
 265 }
 266
 267
 268
 269 /* ------------------------------------------------------------------ */
 270 static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
 271 {
 272         struct em28xx *dev = fe->dvb->priv;
 273
 274         if (acquire)
 275                 return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 276         else
 277                 return em28xx_set_mode(dev, EM28XX_SUSPEND);
 278 }
 279
 280 /* ------------------------------------------------------------------ */
 281
 282 static struct lgdt330x_config em2880_lgdt3303_dev = {
 283         .demod_address = 0x0e,
 284         .demod_chip = LGDT3303,
 285 };
 286
 287 static struct lgdt3305_config em2870_lgdt3304_dev = {
 288         .i2c_addr           = 0x0e,
 289         .demod_chip         = LGDT3304,
 290         .spectral_inversion = 1,
 291         .deny_i2c_rptr      = 1,
 292         .mpeg_mode          = LGDT3305_MPEG_PARALLEL,
 293         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 294         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 295         .vsb_if_khz         = 3250,
 296         .qam_if_khz         = 4000,
 297 };
 298
 299 static struct s921_config sharp_isdbt = {
 300         .demod_address = 0x30 >> 1
 301 };
 302
 303 static struct zl10353_config em28xx_zl10353_with_xc3028 = {
 304         .demod_address = (0x1e >> 1),
 305         .no_tuner = 1,
 306         .parallel_ts = 1,
 307         .if2 = 45600,
 308 };
 309
 310 static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
 311         .demod_address = 0x32 >> 1,
 312         .output_mode   = S5H1409_PARALLEL_OUTPUT,
 313         .gpio          = S5H1409_GPIO_OFF,
 314         .inversion     = S5H1409_INVERSION_OFF,
 315         .status_mode   = S5H1409_DEMODLOCKING,
 316         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
 317 };
 318
 319 static struct tda18271_std_map kworld_a340_std_map = {
 320         .atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 0,
 321                       .if_lvl = 1, .rfagc_top = 0x37, },
 322         .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 1,
 323                       .if_lvl = 1, .rfagc_top = 0x37, },
 324 };
 325
 326 static struct tda18271_config kworld_a340_config = {
 327         .std_map           = &kworld_a340_std_map,
 328 };
 329
 330 static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
 331         .demod_address = (0x1e >> 1),
 332         .no_tuner = 1,
 333         .disable_i2c_gate_ctrl = 1,
 334         .parallel_ts = 1,
 335         .if2 = 45600,
 336 };
 337
 338 static struct drxd_config em28xx_drxd = {
 339         .demod_address = 0x70,
 340         .demod_revision = 0xa2,
 341         .pll_type = DRXD_PLL_NONE,
 342         .clock = 12000,
 343         .insert_rs_byte = 1,
 344         .IF = 42800000,
 345         .disable_i2c_gate_ctrl = 1,
 346 };
 347
 348 static struct drxk_config terratec_h5_drxk = {
 349         .adr = 0x29,
 350         .single_master = 1,
 351         .no_i2c_bridge = 1,
 352         .microcode_name = "dvb-usb-terratec-h5-drxk.fw",
 353         .qam_demod_parameter_count = 2,
 354         .load_firmware_sync = true,
 355 };
 356
 357 static struct drxk_config hauppauge_930c_drxk = {
 358         .adr = 0x29,
 359         .single_master = 1,
 360         .no_i2c_bridge = 1,
 361         .microcode_name = "dvb-usb-hauppauge-hvr930c-drxk.fw",
 362         .chunk_size = 56,
 363         .qam_demod_parameter_count = 2,
 364         .load_firmware_sync = true,
 365 };
 366
 367 static struct drxk_config terratec_htc_stick_drxk = {
 368         .adr = 0x29,
 369         .single_master = 1,
 370         .no_i2c_bridge = 1,
 371         .microcode_name = "dvb-usb-terratec-htc-stick-drxk.fw",
 372         .chunk_size = 54,
 373         .qam_demod_parameter_count = 2,
 374         /* Required for the antenna_gpio to disable LNA. */
 375         .antenna_dvbt = true,
 376         /* The windows driver uses the same. This will disable LNA. */
 377         .antenna_gpio = 0x6,
 378         .load_firmware_sync = true,
 379 };
 380
 381 static struct drxk_config maxmedia_ub425_tc_drxk = {
 382         .adr = 0x29,
 383         .single_master = 1,
 384         .no_i2c_bridge = 1,
 385         .load_firmware_sync = true,
 386 };
 387
 388 static struct drxk_config pctv_520e_drxk = {
 389         .adr = 0x29,
 390         .single_master = 1,
 391         .microcode_name = "dvb-demod-drxk-pctv.fw",
 392         .qam_demod_parameter_count = 2,
 393         .chunk_size = 58,
 394         .antenna_dvbt = true, /* disable LNA */
 395         .antenna_gpio = (1 << 2), /* disable LNA */
 396         .load_firmware_sync = true,
 397 };
 398
 399 static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
 400 {
 401         struct em28xx_dvb *dvb = fe->sec_priv;
 402         int status;
 403
 404         if (!dvb)
 405                 return -EINVAL;
 406
 407         if (enable) {
 408                 down(&dvb->pll_mutex);
 409                 status = dvb->gate_ctrl(fe, 1);
 410         } else {
 411                 status = dvb->gate_ctrl(fe, 0);
 412                 up(&dvb->pll_mutex);
 413         }
 414         return status;
 415 }
 416
 417 static void hauppauge_hvr930c_init(struct em28xx *dev)
 418 {
 419         int i;
 420
 421         struct em28xx_reg_seq hauppauge_hvr930c_init[] = {
 422                 {EM2874_R80_GPIO,       0xff,   0xff,   0x65},
 423                 {EM2874_R80_GPIO,       0xfb,   0xff,   0x32},
 424                 {EM2874_R80_GPIO,       0xff,   0xff,   0xb8},
 425                 { -1,                   -1,     -1,     -1},
 426         };
 427         struct em28xx_reg_seq hauppauge_hvr930c_end[] = {
 428                 {EM2874_R80_GPIO,       0xef,   0xff,   0x01},
 429                 {EM2874_R80_GPIO,       0xaf,   0xff,   0x65},
 430                 {EM2874_R80_GPIO,       0xef,   0xff,   0x76},
 431                 {EM2874_R80_GPIO,       0xef,   0xff,   0x01},
 432                 {EM2874_R80_GPIO,       0xcf,   0xff,   0x0b},
 433                 {EM2874_R80_GPIO,       0xef,   0xff,   0x40},
 434
 435                 {EM2874_R80_GPIO,       0xcf,   0xff,   0x65},
 436                 {EM2874_R80_GPIO,       0xef,   0xff,   0x65},
 437                 {EM2874_R80_GPIO,       0xcf,   0xff,   0x0b},
 438                 {EM2874_R80_GPIO,       0xef,   0xff,   0x65},
 439
 440                 { -1,                   -1,     -1,     -1},
 441         };
 442
 443         struct {
 444                 unsigned char r[4];
 445                 int len;
 446         } regs[] = {
 447                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 448                 {{ 0x01, 0x02 }, 2},
 449                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 450                 {{ 0x01, 0x00 }, 2},
 451                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 452                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 453                 {{ 0x01, 0x00 }, 2},
 454                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 455                 {{ 0x04, 0x00 }, 2},
 456                 {{ 0x00, 0x04 }, 2},
 457                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 458                 {{ 0x04, 0x14 }, 2},
 459                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 460         };
 461
 462         em28xx_gpio_set(dev, hauppauge_hvr930c_init);
 463         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 464         msleep(10);
 465         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 466         msleep(10);
 467
 468         dev->i2c_client.addr = 0x82 >> 1;
 469
 470         for (i = 0; i < ARRAY_SIZE(regs); i++)
 471                 i2c_master_send(&dev->i2c_client, regs[i].r, regs[i].len);
 472         em28xx_gpio_set(dev, hauppauge_hvr930c_end);
 473
 474         msleep(100);
 475
 476         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 477         msleep(30);
 478
 479         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 480         msleep(10);
 481
 482 }
 483
 484 static void terratec_h5_init(struct em28xx *dev)
 485 {
 486         int i;
 487         struct em28xx_reg_seq terratec_h5_init[] = {
 488                 {EM28XX_R08_GPIO,       0xff,   0xff,   10},
 489                 {EM2874_R80_GPIO,       0xf6,   0xff,   100},
 490                 {EM2874_R80_GPIO,       0xf2,   0xff,   50},
 491                 {EM2874_R80_GPIO,       0xf6,   0xff,   100},
 492                 { -1,                   -1,     -1,     -1},
 493         };
 494         struct em28xx_reg_seq terratec_h5_end[] = {
 495                 {EM2874_R80_GPIO,       0xe6,   0xff,   100},
 496                 {EM2874_R80_GPIO,       0xa6,   0xff,   50},
 497                 {EM2874_R80_GPIO,       0xe6,   0xff,   100},
 498                 { -1,                   -1,     -1,     -1},
 499         };
 500         struct {
 501                 unsigned char r[4];
 502                 int len;
 503         } regs[] = {
 504                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 505                 {{ 0x01, 0x02 }, 2},
 506                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 507                 {{ 0x01, 0x00 }, 2},
 508                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 509                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 510                 {{ 0x01, 0x00 }, 2},
 511                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 512                 {{ 0x04, 0x00 }, 2},
 513                 {{ 0x00, 0x04 }, 2},
 514                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 515                 {{ 0x04, 0x14 }, 2},
 516                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 517         };
 518
 519         em28xx_gpio_set(dev, terratec_h5_init);
 520         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 521         msleep(10);
 522         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 523         msleep(10);
 524
 525         dev->i2c_client.addr = 0x82 >> 1;
 526
 527         for (i = 0; i < ARRAY_SIZE(regs); i++)
 528                 i2c_master_send(&dev->i2c_client, regs[i].r, regs[i].len);
 529         em28xx_gpio_set(dev, terratec_h5_end);
 530 };
 531
 532 static void terratec_htc_stick_init(struct em28xx *dev)
 533 {
 534         int i;
 535
 536         /*
 537          * GPIO configuration:
 538          * 0xff: unknown (does not affect DVB-T).
 539          * 0xf6: DRX-K (demodulator).
 540          * 0xe6: unknown (does not affect DVB-T).
 541          * 0xb6: unknown (does not affect DVB-T).
 542          */
 543         struct em28xx_reg_seq terratec_htc_stick_init[] = {
 544                 {EM28XX_R08_GPIO,       0xff,   0xff,   10},
 545                 {EM2874_R80_GPIO,       0xf6,   0xff,   100},
 546                 {EM2874_R80_GPIO,       0xe6,   0xff,   50},
 547                 {EM2874_R80_GPIO,       0xf6,   0xff,   100},
 548                 { -1,                   -1,     -1,     -1},
 549         };
 550         struct em28xx_reg_seq terratec_htc_stick_end[] = {
 551                 {EM2874_R80_GPIO,       0xb6,   0xff,   100},
 552                 {EM2874_R80_GPIO,       0xf6,   0xff,   50},
 553                 { -1,                   -1,     -1,     -1},
 554         };
 555
 556         /*
 557          * Init the analog decoder (not yet supported), but
 558          * it's probably still a good idea.
 559          */
 560         struct {
 561                 unsigned char r[4];
 562                 int len;
 563         } regs[] = {
 564                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 565                 {{ 0x01, 0x02 }, 2},
 566                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 567                 {{ 0x01, 0x00 }, 2},
 568                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 569         };
 570
 571         em28xx_gpio_set(dev, terratec_htc_stick_init);
 572
 573         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 574         msleep(10);
 575         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 576         msleep(10);
 577
 578         dev->i2c_client.addr = 0x82 >> 1;
 579
 580         for (i = 0; i < ARRAY_SIZE(regs); i++)
 581                 i2c_master_send(&dev->i2c_client, regs[i].r, regs[i].len);
 582
 583         em28xx_gpio_set(dev, terratec_htc_stick_end);
 584 };
 585
 586 static void terratec_htc_usb_xs_init(struct em28xx *dev)
 587 {
 588         int i;
 589
 590         struct em28xx_reg_seq terratec_htc_usb_xs_init[] = {
 591                 {EM28XX_R08_GPIO,       0xff,   0xff,   10},
 592                 {EM2874_R80_GPIO,       0xb2,   0xff,   100},
 593                 {EM2874_R80_GPIO,       0xb2,   0xff,   50},
 594                 {EM2874_R80_GPIO,       0xb6,   0xff,   100},
 595                 { -1,                   -1,     -1,     -1},
 596         };
 597         struct em28xx_reg_seq terratec_htc_usb_xs_end[] = {
 598                 {EM2874_R80_GPIO,       0xa6,   0xff,   100},
 599                 {EM2874_R80_GPIO,       0xa6,   0xff,   50},
 600                 {EM2874_R80_GPIO,       0xe6,   0xff,   100},
 601                 { -1,                   -1,     -1,     -1},
 602         };
 603
 604         /*
 605          * Init the analog decoder (not yet supported), but
 606          * it's probably still a good idea.
 607          */
 608         struct {
 609                 unsigned char r[4];
 610                 int len;
 611         } regs[] = {
 612                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 613                 {{ 0x01, 0x02 }, 2},
 614                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 615                 {{ 0x01, 0x00 }, 2},
 616                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 617                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 618                 {{ 0x01, 0x00 }, 2},
 619                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 620                 {{ 0x04, 0x00 }, 2},
 621                 {{ 0x00, 0x04 }, 2},
 622                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 623                 {{ 0x04, 0x14 }, 2},
 624                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 625         };
 626
 627         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 628
 629         em28xx_gpio_set(dev, terratec_htc_usb_xs_init);
 630
 631         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 632         msleep(10);
 633         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 634         msleep(10);
 635
 636         dev->i2c_client.addr = 0x82 >> 1;
 637
 638         for (i = 0; i < ARRAY_SIZE(regs); i++)
 639                 i2c_master_send(&dev->i2c_client, regs[i].r, regs[i].len);
 640
 641         em28xx_gpio_set(dev, terratec_htc_usb_xs_end);
 642 };
 643
 644 static void pctv_520e_init(struct em28xx *dev)
 645 {
 646         /*
 647          * Init AVF4910B analog decoder. Looks like I2C traffic to
 648          * digital demodulator and tuner are routed via AVF4910B.
 649          */
 650         int i;
 651         struct {
 652                 unsigned char r[4];
 653                 int len;
 654         } regs[] = {
 655                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 656                 {{ 0x01, 0x02 }, 2},
 657                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 658                 {{ 0x01, 0x00 }, 2},
 659                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 660                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 661                 {{ 0x01, 0x00 }, 2},
 662                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 663         };
 664
 665         dev->i2c_client.addr = 0x82 >> 1; /* 0x41 */
 666
 667         for (i = 0; i < ARRAY_SIZE(regs); i++)
 668                 i2c_master_send(&dev->i2c_client, regs[i].r, regs[i].len);
 669 };
 670
 671 static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe)
 672 {
 673         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 674         struct em28xx *dev = fe->dvb->priv;
 675 #ifdef CONFIG_GPIOLIB
 676         struct em28xx_dvb *dvb = dev->dvb;
 677         int ret;
 678         unsigned long flags;
 679
 680         if (c->lna == 1)
 681                 flags = GPIOF_OUT_INIT_HIGH; /* enable LNA */
 682         else
 683                 flags = GPIOF_OUT_INIT_LOW; /* disable LNA */
 684
 685         ret = gpio_request_one(dvb->lna_gpio, flags, NULL);
 686         if (ret)
 687                 em28xx_errdev("gpio request failed %d\n", ret);
 688         else
 689                 gpio_free(dvb->lna_gpio);
 690
 691         return ret;
 692 #else
 693         dev_warn(&dev->udev->dev, "%s: LNA control is disabled (lna=%u)\n",
 694                         KBUILD_MODNAME, c->lna);
 695         return 0;
 696 #endif
 697 }
 698
 699 static int em28xx_mt352_terratec_xs_init(struct dvb_frontend *fe)
 700 {
 701         /* Values extracted from a USB trace of the Terratec Windows driver */
 702         static u8 clock_config[]   = { CLOCK_CTL,  0x38, 0x2c };
 703         static u8 reset[]          = { RESET,      0x80 };
 704         static u8 adc_ctl_1_cfg[]  = { ADC_CTL_1,  0x40 };
 705         static u8 agc_cfg[]        = { AGC_TARGET, 0x28, 0xa0 };
 706         static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
 707         static u8 rs_err_cfg[]     = { RS_ERR_PER_1, 0x00, 0x4d };
 708         static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
 709         static u8 trl_nom_cfg[]    = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
 710         static u8 tps_given_cfg[]  = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
 711         static u8 tuner_go[]       = { TUNER_GO, 0x01};
 712
 713         mt352_write(fe, clock_config,   sizeof(clock_config));
 714         udelay(200);
 715         mt352_write(fe, reset,          sizeof(reset));
 716         mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));
 717         mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
 718         mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
 719         mt352_write(fe, rs_err_cfg,     sizeof(rs_err_cfg));
 720         mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
 721         mt352_write(fe, trl_nom_cfg,    sizeof(trl_nom_cfg));
 722         mt352_write(fe, tps_given_cfg,  sizeof(tps_given_cfg));
 723         mt352_write(fe, tuner_go,       sizeof(tuner_go));
 724         return 0;
 725 }
 726
 727 static struct mt352_config terratec_xs_mt352_cfg = {
 728         .demod_address = (0x1e >> 1),
 729         .no_tuner = 1,
 730         .if2 = 45600,
 731         .demod_init = em28xx_mt352_terratec_xs_init,
 732 };
 733
 734 static struct tda10023_config em28xx_tda10023_config = {
 735         .demod_address = 0x0c,
 736         .invert = 1,
 737 };
 738
 739 static struct cxd2820r_config em28xx_cxd2820r_config = {
 740         .i2c_address = (0xd8 >> 1),
 741         .ts_mode = CXD2820R_TS_SERIAL,
 742 };
 743
 744 static struct tda18271_config em28xx_cxd2820r_tda18271_config = {
 745         .output_opt = TDA18271_OUTPUT_LT_OFF,
 746         .gate = TDA18271_GATE_DIGITAL,
 747 };
 748
 749 static const struct tda10071_config em28xx_tda10071_config = {
 750         .demod_i2c_addr = 0x55, /* (0xaa >> 1) */
 751         .tuner_i2c_addr = 0x14,
 752         .i2c_wr_max = 64,
 753         .ts_mode = TDA10071_TS_SERIAL,
 754         .spec_inv = 0,
 755         .xtal = 40444000, /* 40.444 MHz */
 756         .pll_multiplier = 20,
 757 };
 758
 759 static const struct a8293_config em28xx_a8293_config = {
 760         .i2c_addr = 0x08, /* (0x10 >> 1) */
 761 };
 762
 763 static struct zl10353_config em28xx_zl10353_no_i2c_gate_dev = {
 764         .demod_address = (0x1e >> 1),
 765         .disable_i2c_gate_ctrl = 1,
 766         .no_tuner = 1,
 767         .parallel_ts = 1,
 768 };
 769 static struct qt1010_config em28xx_qt1010_config = {
 770         .i2c_address = 0x62
 771
 772 };
 773
 774 /* ------------------------------------------------------------------ */
 775
 776 static int em28xx_attach_xc3028(u8 addr, struct em28xx *dev)
 777 {
 778         struct dvb_frontend *fe;
 779         struct xc2028_config cfg;
 780
 781         memset(&cfg, 0, sizeof(cfg));
 782         cfg.i2c_adap  = &dev->i2c_adap;
 783         cfg.i2c_addr  = addr;
 784
 785         if (!dev->dvb->fe[0]) {
 786                 em28xx_errdev("/2: dvb frontend not attached. "
 787                                 "Can't attach xc3028\n");
 788                 return -EINVAL;
 789         }
 790
 791         fe = dvb_attach(xc2028_attach, dev->dvb->fe[0], &cfg);
 792         if (!fe) {
 793                 em28xx_errdev("/2: xc3028 attach failed\n");
 794                 dvb_frontend_detach(dev->dvb->fe[0]);
 795                 dev->dvb->fe[0] = NULL;
 796                 return -EINVAL;
 797         }
 798
 799         em28xx_info("%s/2: xc3028 attached\n", dev->name);
 800
 801         return 0;
 802 }
 803
 804 /* ------------------------------------------------------------------ */
 805
 806 static int em28xx_register_dvb(struct em28xx_dvb *dvb, struct module *module,
 807                                struct em28xx *dev, struct device *device)
 808 {
 809         int result;
 810
 811         mutex_init(&dvb->lock);
 812
 813         /* register adapter */
 814         result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
 815                                       adapter_nr);
 816         if (result < 0) {
 817                 printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
 818                        dev->name, result);
 819                 goto fail_adapter;
 820         }
 821
 822         /* Ensure all frontends negotiate bus access */
 823         dvb->fe[0]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 824         if (dvb->fe[1])
 825                 dvb->fe[1]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 826
 827         dvb->adapter.priv = dev;
 828
 829         /* register frontend */
 830         result = dvb_register_frontend(&dvb->adapter, dvb->fe[0]);
 831         if (result < 0) {
 832                 printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
 833                        dev->name, result);
 834                 goto fail_frontend0;
 835         }
 836
 837         /* register 2nd frontend */
 838         if (dvb->fe[1]) {
 839                 result = dvb_register_frontend(&dvb->adapter, dvb->fe[1]);
 840                 if (result < 0) {
 841                         printk(KERN_WARNING "%s: 2nd dvb_register_frontend failed (errno = %d)\n",
 842                                 dev->name, result);
 843                         goto fail_frontend1;
 844                 }
 845         }
 846
 847         /* register demux stuff */
 848         dvb->demux.dmx.capabilities =
 849                 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 850                 DMX_MEMORY_BASED_FILTERING;
 851         dvb->demux.priv       = dvb;
 852         dvb->demux.filternum  = 256;
 853         dvb->demux.feednum    = 256;
 854         dvb->demux.start_feed = em28xx_start_feed;
 855         dvb->demux.stop_feed  = em28xx_stop_feed;
 856
 857         result = dvb_dmx_init(&dvb->demux);
 858         if (result < 0) {
 859                 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
 860                        dev->name, result);
 861                 goto fail_dmx;
 862         }
 863
 864         dvb->dmxdev.filternum    = 256;
 865         dvb->dmxdev.demux        = &dvb->demux.dmx;
 866         dvb->dmxdev.capabilities = 0;
 867         result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
 868         if (result < 0) {
 869                 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
 870                        dev->name, result);
 871                 goto fail_dmxdev;
 872         }
 873
 874         dvb->fe_hw.source = DMX_FRONTEND_0;
 875         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 876         if (result < 0) {
 877                 printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
 878                        dev->name, result);
 879                 goto fail_fe_hw;
 880         }
 881
 882         dvb->fe_mem.source = DMX_MEMORY_FE;
 883         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 884         if (result < 0) {
 885                 printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
 886                        dev->name, result);
 887                 goto fail_fe_mem;
 888         }
 889
 890         result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 891         if (result < 0) {
 892                 printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
 893                        dev->name, result);
 894                 goto fail_fe_conn;
 895         }
 896
 897         /* register network adapter */
 898         dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
 899         return 0;
 900
 901 fail_fe_conn:
 902         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 903 fail_fe_mem:
 904         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 905 fail_fe_hw:
 906         dvb_dmxdev_release(&dvb->dmxdev);
 907 fail_dmxdev:
 908         dvb_dmx_release(&dvb->demux);
 909 fail_dmx:
 910         if (dvb->fe[1])
 911                 dvb_unregister_frontend(dvb->fe[1]);
 912         dvb_unregister_frontend(dvb->fe[0]);
 913 fail_frontend1:
 914         if (dvb->fe[1])
 915                 dvb_frontend_detach(dvb->fe[1]);
 916 fail_frontend0:
 917         dvb_frontend_detach(dvb->fe[0]);
 918         dvb_unregister_adapter(&dvb->adapter);
 919 fail_adapter:
 920         return result;
 921 }
 922
 923 static void em28xx_unregister_dvb(struct em28xx_dvb *dvb)
 924 {
 925         dvb_net_release(&dvb->net);
 926         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 927         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 928         dvb_dmxdev_release(&dvb->dmxdev);
 929         dvb_dmx_release(&dvb->demux);
 930         if (dvb->fe[1])
 931                 dvb_unregister_frontend(dvb->fe[1]);
 932         dvb_unregister_frontend(dvb->fe[0]);
 933         if (dvb->fe[1] && !dvb->dont_attach_fe1)
 934                 dvb_frontend_detach(dvb->fe[1]);
 935         dvb_frontend_detach(dvb->fe[0]);
 936         dvb_unregister_adapter(&dvb->adapter);
 937 }
 938
 939 static int em28xx_dvb_init(struct em28xx *dev)
 940 {
 941         int result = 0, mfe_shared = 0;
 942         struct em28xx_dvb *dvb;
 943
 944         if (!dev->board.has_dvb) {
 945                 /* This device does not support the extension */
 946                 printk(KERN_INFO "em28xx_dvb: This device does not support the extension\n");
 947                 return 0;
 948         }
 949
 950         dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
 951
 952         if (dvb == NULL) {
 953                 em28xx_info("em28xx_dvb: memory allocation failed\n");
 954                 return -ENOMEM;
 955         }
 956         dev->dvb = dvb;
 957         dvb->fe[0] = dvb->fe[1] = NULL;
 958
 959         mutex_lock(&dev->lock);
 960         em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 961         /* init frontend */
 962         switch (dev->model) {
 963         case EM2874_BOARD_LEADERSHIP_ISDBT:
 964                 dvb->fe[0] = dvb_attach(s921_attach,
 965                                 &sharp_isdbt, &dev->i2c_adap);
 966
 967                 if (!dvb->fe[0]) {
 968                         result = -EINVAL;
 969                         goto out_free;
 970                 }
 971
 972                 break;
 973         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
 974         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
 975         case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
 976         case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
 977                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
 978                                            &em2880_lgdt3303_dev,
 979                                            &dev->i2c_adap);
 980                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
 981                         result = -EINVAL;
 982                         goto out_free;
 983                 }
 984                 break;
 985         case EM2880_BOARD_KWORLD_DVB_310U:
 986                 dvb->fe[0] = dvb_attach(zl10353_attach,
 987                                            &em28xx_zl10353_with_xc3028,
 988                                            &dev->i2c_adap);
 989                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
 990                         result = -EINVAL;
 991                         goto out_free;
 992                 }
 993                 break;
 994         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
 995         case EM2882_BOARD_TERRATEC_HYBRID_XS:
 996         case EM2880_BOARD_EMPIRE_DUAL_TV:
 997                 dvb->fe[0] = dvb_attach(zl10353_attach,
 998                                            &em28xx_zl10353_xc3028_no_i2c_gate,
 999                                            &dev->i2c_adap);
1000                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1001                         result = -EINVAL;
1002                         goto out_free;
1003                 }
1004                 break;
1005         case EM2880_BOARD_TERRATEC_HYBRID_XS:
1006         case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
1007         case EM2881_BOARD_PINNACLE_HYBRID_PRO:
1008         case EM2882_BOARD_DIKOM_DK300:
1009         case EM2882_BOARD_KWORLD_VS_DVBT:
1010                 dvb->fe[0] = dvb_attach(zl10353_attach,
1011                                            &em28xx_zl10353_xc3028_no_i2c_gate,
1012                                            &dev->i2c_adap);
1013                 if (dvb->fe[0] == NULL) {
1014                         /* This board could have either a zl10353 or a mt352.
1015                            If the chip id isn't for zl10353, try mt352 */
1016                         dvb->fe[0] = dvb_attach(mt352_attach,
1017                                                    &terratec_xs_mt352_cfg,
1018                                                    &dev->i2c_adap);
1019                 }
1020
1021                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1022                         result = -EINVAL;
1023                         goto out_free;
1024                 }
1025                 break;
1026         case EM2870_BOARD_KWORLD_355U:
1027                 dvb->fe[0] = dvb_attach(zl10353_attach,
1028                                            &em28xx_zl10353_no_i2c_gate_dev,
1029                                            &dev->i2c_adap);
1030                 if (dvb->fe[0] != NULL)
1031                         dvb_attach(qt1010_attach, dvb->fe[0],
1032                                    &dev->i2c_adap, &em28xx_qt1010_config);
1033                 break;
1034         case EM2883_BOARD_KWORLD_HYBRID_330U:
1035         case EM2882_BOARD_EVGA_INDTUBE:
1036                 dvb->fe[0] = dvb_attach(s5h1409_attach,
1037                                            &em28xx_s5h1409_with_xc3028,
1038                                            &dev->i2c_adap);
1039                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1040                         result = -EINVAL;
1041                         goto out_free;
1042                 }
1043                 break;
1044         case EM2882_BOARD_KWORLD_ATSC_315U:
1045                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
1046                                            &em2880_lgdt3303_dev,
1047                                            &dev->i2c_adap);
1048                 if (dvb->fe[0] != NULL) {
1049                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1050                                 &dev->i2c_adap, 0x61, TUNER_THOMSON_DTT761X)) {
1051                                 result = -EINVAL;
1052                                 goto out_free;
1053                         }
1054                 }
1055                 break;
1056         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
1057         case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
1058                 dvb->fe[0] = dvb_attach(drxd_attach, &em28xx_drxd, NULL,
1059                                            &dev->i2c_adap, &dev->udev->dev);
1060                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1061                         result = -EINVAL;
1062                         goto out_free;
1063                 }
1064                 break;
1065         case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
1066                 /* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
1067                 dvb->fe[0] = dvb_attach(tda10023_attach,
1068                         &em28xx_tda10023_config,
1069                         &dev->i2c_adap, 0x48);
1070                 if (dvb->fe[0]) {
1071                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1072                                 &dev->i2c_adap, 0x60, TUNER_PHILIPS_CU1216L)) {
1073                                 result = -EINVAL;
1074                                 goto out_free;
1075                         }
1076                 }
1077                 break;
1078         case EM2870_BOARD_KWORLD_A340:
1079                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1080                                            &em2870_lgdt3304_dev,
1081                                            &dev->i2c_adap);
1082                 if (dvb->fe[0] != NULL)
1083                         dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1084                                    &dev->i2c_adap, &kworld_a340_config);
1085                 break;
1086         case EM28174_BOARD_PCTV_290E:
1087                 /* set default GPIO0 for LNA, used if GPIOLIB is undefined */
1088                 dvb->lna_gpio = CXD2820R_GPIO_E | CXD2820R_GPIO_O |
1089                                 CXD2820R_GPIO_L;
1090                 dvb->fe[0] = dvb_attach(cxd2820r_attach,
1091                                         &em28xx_cxd2820r_config,
1092                                         &dev->i2c_adap,
1093                                         &dvb->lna_gpio);
1094                 if (dvb->fe[0]) {
1095                         /* FE 0 attach tuner */
1096                         if (!dvb_attach(tda18271_attach,
1097                                         dvb->fe[0],
1098                                         0x60,
1099                                         &dev->i2c_adap,
1100                                         &em28xx_cxd2820r_tda18271_config)) {
1101
1102                                 dvb_frontend_detach(dvb->fe[0]);
1103                                 result = -EINVAL;
1104                                 goto out_free;
1105                         }
1106
1107 #ifdef CONFIG_GPIOLIB
1108                         /* enable LNA for DVB-T, DVB-T2 and DVB-C */
1109                         result = gpio_request_one(dvb->lna_gpio,
1110                                         GPIOF_OUT_INIT_LOW, NULL);
1111                         if (result)
1112                                 em28xx_errdev("gpio request failed %d\n",
1113                                                 result);
1114                         else
1115                                 gpio_free(dvb->lna_gpio);
1116
1117                         result = 0; /* continue even set LNA fails */
1118 #endif
1119                         dvb->fe[0]->ops.set_lna = em28xx_pctv_290e_set_lna;
1120                 }
1121
1122                 break;
1123         case EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C:
1124         {
1125                 struct xc5000_config cfg;
1126                 hauppauge_hvr930c_init(dev);
1127
1128                 dvb->fe[0] = dvb_attach(drxk_attach,
1129                                         &hauppauge_930c_drxk, &dev->i2c_adap);
1130                 if (!dvb->fe[0]) {
1131                         result = -EINVAL;
1132                         goto out_free;
1133                 }
1134                 /* FIXME: do we need a pll semaphore? */
1135                 dvb->fe[0]->sec_priv = dvb;
1136                 sema_init(&dvb->pll_mutex, 1);
1137                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1138                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1139
1140                 /* Attach xc5000 */
1141                 memset(&cfg, 0, sizeof(cfg));
1142                 cfg.i2c_address  = 0x61;
1143                 cfg.if_khz = 4000;
1144
1145                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1146                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1147                 if (!dvb_attach(xc5000_attach, dvb->fe[0], &dev->i2c_adap,
1148                                 &cfg)) {
1149                         result = -EINVAL;
1150                         goto out_free;
1151                 }
1152                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1153                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1154
1155                 break;
1156         }
1157         case EM2884_BOARD_TERRATEC_H5:
1158                 terratec_h5_init(dev);
1159
1160                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_h5_drxk, &dev->i2c_adap);
1161                 if (!dvb->fe[0]) {
1162                         result = -EINVAL;
1163                         goto out_free;
1164                 }
1165                 /* FIXME: do we need a pll semaphore? */
1166                 dvb->fe[0]->sec_priv = dvb;
1167                 sema_init(&dvb->pll_mutex, 1);
1168                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1169                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1170
1171                 /* Attach tda18271 to DVB-C frontend */
1172                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1173                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1174                 if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0], &dev->i2c_adap, 0x60)) {
1175                         result = -EINVAL;
1176                         goto out_free;
1177                 }
1178                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1179                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1180
1181                 break;
1182         case EM28174_BOARD_PCTV_460E:
1183                 /* attach demod */
1184                 dvb->fe[0] = dvb_attach(tda10071_attach,
1185                         &em28xx_tda10071_config, &dev->i2c_adap);
1186
1187                 /* attach SEC */
1188                 if (dvb->fe[0])
1189                         dvb_attach(a8293_attach, dvb->fe[0], &dev->i2c_adap,
1190                                 &em28xx_a8293_config);
1191                 break;
1192         case EM2874_BOARD_MAXMEDIA_UB425_TC:
1193                 /* attach demodulator */
1194                 dvb->fe[0] = dvb_attach(drxk_attach, &maxmedia_ub425_tc_drxk,
1195                                 &dev->i2c_adap);
1196
1197                 if (dvb->fe[0]) {
1198                         /* disable I2C-gate */
1199                         dvb->fe[0]->ops.i2c_gate_ctrl = NULL;
1200
1201                         /* attach tuner */
1202                         if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0],
1203                                         &dev->i2c_adap, 0x60)) {
1204                                 dvb_frontend_detach(dvb->fe[0]);
1205                                 result = -EINVAL;
1206                                 goto out_free;
1207                         }
1208                 }
1209
1210                 /* TODO: we need drx-3913k firmware in order to support DVB-T */
1211                 em28xx_info("MaxMedia UB425-TC: only DVB-C supported by that " \
1212                                 "driver version\n");
1213
1214                 break;
1215         case EM2884_BOARD_PCTV_510E:
1216         case EM2884_BOARD_PCTV_520E:
1217                 pctv_520e_init(dev);
1218
1219                 /* attach demodulator */
1220                 dvb->fe[0] = dvb_attach(drxk_attach, &pctv_520e_drxk,
1221                                 &dev->i2c_adap);
1222
1223                 if (dvb->fe[0]) {
1224                         /* attach tuner */
1225                         if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1226                                         &dev->i2c_adap,
1227                                         &em28xx_cxd2820r_tda18271_config)) {
1228                                 dvb_frontend_detach(dvb->fe[0]);
1229                                 result = -EINVAL;
1230                                 goto out_free;
1231                         }
1232                 }
1233                 break;
1234         case EM2884_BOARD_CINERGY_HTC_STICK:
1235                 terratec_htc_stick_init(dev);
1236
1237                 /* attach demodulator */
1238                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1239                                         &dev->i2c_adap);
1240                 if (!dvb->fe[0]) {
1241                         result = -EINVAL;
1242                         goto out_free;
1243                 }
1244
1245                 /* Attach the demodulator. */
1246                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1247                                 &dev->i2c_adap,
1248                                 &em28xx_cxd2820r_tda18271_config)) {
1249                         result = -EINVAL;
1250                         goto out_free;
1251                 }
1252                 break;
1253         case EM2884_BOARD_TERRATEC_HTC_USB_XS:
1254                 terratec_htc_usb_xs_init(dev);
1255
1256                 /* attach demodulator */
1257                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1258                                         &dev->i2c_adap);
1259                 if (!dvb->fe[0]) {
1260                         result = -EINVAL;
1261                         goto out_free;
1262                 }
1263
1264                 /* Attach the demodulator. */
1265                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1266                                 &dev->i2c_adap,
1267                                 &em28xx_cxd2820r_tda18271_config)) {
1268                         result = -EINVAL;
1269                         goto out_free;
1270                 }
1271                 break;
1272         default:
1273                 em28xx_errdev("/2: The frontend of your DVB/ATSC card"
1274                                 " isn't supported yet\n");
1275                 break;
1276         }
1277         if (NULL == dvb->fe[0]) {
1278                 em28xx_errdev("/2: frontend initialization failed\n");
1279                 result = -EINVAL;
1280                 goto out_free;
1281         }
1282         /* define general-purpose callback pointer */
1283         dvb->fe[0]->callback = em28xx_tuner_callback;
1284         if (dvb->fe[1])
1285                 dvb->fe[1]->callback = em28xx_tuner_callback;
1286
1287         /* register everything */
1288         result = em28xx_register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
1289
1290         if (result < 0)
1291                 goto out_free;
1292
1293         /* MFE lock */
1294         dvb->adapter.mfe_shared = mfe_shared;
1295
1296         em28xx_info("Successfully loaded em28xx-dvb\n");
1297 ret:
1298         em28xx_set_mode(dev, EM28XX_SUSPEND);
1299         mutex_unlock(&dev->lock);
1300         return result;
1301
1302 out_free:
1303         kfree(dvb);
1304         dev->dvb = NULL;
1305         goto ret;
1306 }
1307
1308 static inline void prevent_sleep(struct dvb_frontend_ops *ops)
1309 {
1310         ops->set_voltage = NULL;
1311         ops->sleep = NULL;
1312         ops->tuner_ops.sleep = NULL;
1313 }
1314
1315 static int em28xx_dvb_fini(struct em28xx *dev)
1316 {
1317         if (!dev->board.has_dvb) {
1318                 /* This device does not support the extension */
1319                 return 0;
1320         }
1321
1322         if (dev->dvb) {
1323                 struct em28xx_dvb *dvb = dev->dvb;
1324
1325                 if (dev->disconnected) {
1326                         /* We cannot tell the device to sleep
1327                          * once it has been unplugged. */
1328                         if (dvb->fe[0])
1329                                 prevent_sleep(&dvb->fe[0]->ops);
1330                         if (dvb->fe[1])
1331                                 prevent_sleep(&dvb->fe[1]->ops);
1332                 }
1333
1334                 em28xx_unregister_dvb(dvb);
1335                 kfree(dvb);
1336                 dev->dvb = NULL;
1337         }
1338
1339         return 0;
1340 }
1341
1342 static struct em28xx_ops dvb_ops = {
1343         .id   = EM28XX_DVB,
1344         .name = "Em28xx dvb Extension",
1345         .init = em28xx_dvb_init,
1346         .fini = em28xx_dvb_fini,
1347 };
1348
1349 static int __init em28xx_dvb_register(void)
1350 {
1351         return em28xx_register_extension(&dvb_ops);
1352 }
1353
1354 static void __exit em28xx_dvb_unregister(void)
1355 {
1356         em28xx_unregister_extension(&dvb_ops);
1357 }
1358
1359 module_init(em28xx_dvb_register);
1360 module_exit(em28xx_dvb_unregister);