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 #include "mb86a20s.h"
  54 #include "m88ds3103.h"
  55 #include "m88ts2022.h"
  56
  57 MODULE_DESCRIPTION("driver for em28xx based DVB cards");
  58 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
  59 MODULE_LICENSE("GPL");
  60
  61 static unsigned int debug;
  62 module_param(debug, int, 0644);
  63 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
  64
  65 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  66
  67 #define dprintk(level, fmt, arg...) do {                        \
  68 if (debug >= level)                                             \
  69         printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
  70 } while (0)
  71
  72 struct em28xx_dvb {
  73         struct dvb_frontend        *fe[2];
  74
  75         /* feed count management */
  76         struct mutex               lock;
  77         int                        nfeeds;
  78
  79         /* general boilerplate stuff */
  80         struct dvb_adapter         adapter;
  81         struct dvb_demux           demux;
  82         struct dmxdev              dmxdev;
  83         struct dmx_frontend        fe_hw;
  84         struct dmx_frontend        fe_mem;
  85         struct dvb_net             net;
  86
  87         /* Due to DRX-K - probably need changes */
  88         int (*gate_ctrl)(struct dvb_frontend *, int);
  89         struct semaphore      pll_mutex;
  90         bool                    dont_attach_fe1;
  91         int                     lna_gpio;
  92         struct i2c_client       *i2c_client_tuner;
  93 };
  94
  95
  96 static inline void print_err_status(struct em28xx *dev,
  97                                      int packet, int status)
  98 {
  99         char *errmsg = "Unknown";
 100
 101         switch (status) {
 102         case -ENOENT:
 103                 errmsg = "unlinked synchronuously";
 104                 break;
 105         case -ECONNRESET:
 106                 errmsg = "unlinked asynchronuously";
 107                 break;
 108         case -ENOSR:
 109                 errmsg = "Buffer error (overrun)";
 110                 break;
 111         case -EPIPE:
 112                 errmsg = "Stalled (device not responding)";
 113                 break;
 114         case -EOVERFLOW:
 115                 errmsg = "Babble (bad cable?)";
 116                 break;
 117         case -EPROTO:
 118                 errmsg = "Bit-stuff error (bad cable?)";
 119                 break;
 120         case -EILSEQ:
 121                 errmsg = "CRC/Timeout (could be anything)";
 122                 break;
 123         case -ETIME:
 124                 errmsg = "Device does not respond";
 125                 break;
 126         }
 127         if (packet < 0) {
 128                 dprintk(1, "URB status %d [%s].\n", status, errmsg);
 129         } else {
 130                 dprintk(1, "URB packet %d, status %d [%s].\n",
 131                         packet, status, errmsg);
 132         }
 133 }
 134
 135 static inline int em28xx_dvb_urb_data_copy(struct em28xx *dev, struct urb *urb)
 136 {
 137         int xfer_bulk, num_packets, i;
 138
 139         if (!dev)
 140                 return 0;
 141
 142         if (dev->disconnected)
 143                 return 0;
 144
 145         if (urb->status < 0)
 146                 print_err_status(dev, -1, urb->status);
 147
 148         xfer_bulk = usb_pipebulk(urb->pipe);
 149
 150         if (xfer_bulk) /* bulk */
 151                 num_packets = 1;
 152         else /* isoc */
 153                 num_packets = urb->number_of_packets;
 154
 155         for (i = 0; i < num_packets; i++) {
 156                 if (xfer_bulk) {
 157                         if (urb->status < 0) {
 158                                 print_err_status(dev, i, urb->status);
 159                                 if (urb->status != -EPROTO)
 160                                         continue;
 161                         }
 162                         dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer,
 163                                         urb->actual_length);
 164                 } else {
 165                         if (urb->iso_frame_desc[i].status < 0) {
 166                                 print_err_status(dev, i,
 167                                                  urb->iso_frame_desc[i].status);
 168                                 if (urb->iso_frame_desc[i].status != -EPROTO)
 169                                         continue;
 170                         }
 171                         dvb_dmx_swfilter(&dev->dvb->demux,
 172                                          urb->transfer_buffer +
 173                                          urb->iso_frame_desc[i].offset,
 174                                          urb->iso_frame_desc[i].actual_length);
 175                 }
 176         }
 177
 178         return 0;
 179 }
 180
 181 static int em28xx_start_streaming(struct em28xx_dvb *dvb)
 182 {
 183         int rc;
 184         struct em28xx_i2c_bus *i2c_bus = dvb->adapter.priv;
 185         struct em28xx *dev = i2c_bus->dev;
 186         int dvb_max_packet_size, packet_multiplier, dvb_alt;
 187
 188         if (dev->dvb_xfer_bulk) {
 189                 if (!dev->dvb_ep_bulk)
 190                         return -ENODEV;
 191                 dvb_max_packet_size = 512; /* USB 2.0 spec */
 192                 packet_multiplier = EM28XX_DVB_BULK_PACKET_MULTIPLIER;
 193                 dvb_alt = 0;
 194         } else { /* isoc */
 195                 if (!dev->dvb_ep_isoc)
 196                         return -ENODEV;
 197                 dvb_max_packet_size = dev->dvb_max_pkt_size_isoc;
 198                 if (dvb_max_packet_size < 0)
 199                         return dvb_max_packet_size;
 200                 packet_multiplier = EM28XX_DVB_NUM_ISOC_PACKETS;
 201                 dvb_alt = dev->dvb_alt_isoc;
 202         }
 203
 204         usb_set_interface(dev->udev, 0, dvb_alt);
 205         rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 206         if (rc < 0)
 207                 return rc;
 208
 209         dprintk(1, "Using %d buffers each with %d x %d bytes\n",
 210                 EM28XX_DVB_NUM_BUFS,
 211                 packet_multiplier,
 212                 dvb_max_packet_size);
 213
 214         return em28xx_init_usb_xfer(dev, EM28XX_DIGITAL_MODE,
 215                                     dev->dvb_xfer_bulk,
 216                                     EM28XX_DVB_NUM_BUFS,
 217                                     dvb_max_packet_size,
 218                                     packet_multiplier,
 219                                     em28xx_dvb_urb_data_copy);
 220 }
 221
 222 static int em28xx_stop_streaming(struct em28xx_dvb *dvb)
 223 {
 224         struct em28xx_i2c_bus *i2c_bus = dvb->adapter.priv;
 225         struct em28xx *dev = i2c_bus->dev;
 226
 227         em28xx_stop_urbs(dev);
 228
 229         return 0;
 230 }
 231
 232 static int em28xx_start_feed(struct dvb_demux_feed *feed)
 233 {
 234         struct dvb_demux *demux  = feed->demux;
 235         struct em28xx_dvb *dvb = demux->priv;
 236         int rc, ret;
 237
 238         if (!demux->dmx.frontend)
 239                 return -EINVAL;
 240
 241         mutex_lock(&dvb->lock);
 242         dvb->nfeeds++;
 243         rc = dvb->nfeeds;
 244
 245         if (dvb->nfeeds == 1) {
 246                 ret = em28xx_start_streaming(dvb);
 247                 if (ret < 0)
 248                         rc = ret;
 249         }
 250
 251         mutex_unlock(&dvb->lock);
 252         return rc;
 253 }
 254
 255 static int em28xx_stop_feed(struct dvb_demux_feed *feed)
 256 {
 257         struct dvb_demux *demux  = feed->demux;
 258         struct em28xx_dvb *dvb = demux->priv;
 259         int err = 0;
 260
 261         mutex_lock(&dvb->lock);
 262         dvb->nfeeds--;
 263
 264         if (0 == dvb->nfeeds)
 265                 err = em28xx_stop_streaming(dvb);
 266
 267         mutex_unlock(&dvb->lock);
 268         return err;
 269 }
 270
 271
 272
 273 /* ------------------------------------------------------------------ */
 274 static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
 275 {
 276         struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
 277         struct em28xx *dev = i2c_bus->dev;
 278
 279         if (acquire)
 280                 return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 281         else
 282                 return em28xx_set_mode(dev, EM28XX_SUSPEND);
 283 }
 284
 285 /* ------------------------------------------------------------------ */
 286
 287 static struct lgdt330x_config em2880_lgdt3303_dev = {
 288         .demod_address = 0x0e,
 289         .demod_chip = LGDT3303,
 290 };
 291
 292 static struct lgdt3305_config em2870_lgdt3304_dev = {
 293         .i2c_addr           = 0x0e,
 294         .demod_chip         = LGDT3304,
 295         .spectral_inversion = 1,
 296         .deny_i2c_rptr      = 1,
 297         .mpeg_mode          = LGDT3305_MPEG_PARALLEL,
 298         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 299         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 300         .vsb_if_khz         = 3250,
 301         .qam_if_khz         = 4000,
 302 };
 303
 304 static struct lgdt3305_config em2874_lgdt3305_dev = {
 305         .i2c_addr           = 0x0e,
 306         .demod_chip         = LGDT3305,
 307         .spectral_inversion = 1,
 308         .deny_i2c_rptr      = 0,
 309         .mpeg_mode          = LGDT3305_MPEG_SERIAL,
 310         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 311         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 312         .vsb_if_khz         = 3250,
 313         .qam_if_khz         = 4000,
 314 };
 315
 316 static struct s921_config sharp_isdbt = {
 317         .demod_address = 0x30 >> 1
 318 };
 319
 320 static struct zl10353_config em28xx_zl10353_with_xc3028 = {
 321         .demod_address = (0x1e >> 1),
 322         .no_tuner = 1,
 323         .parallel_ts = 1,
 324         .if2 = 45600,
 325 };
 326
 327 static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
 328         .demod_address = 0x32 >> 1,
 329         .output_mode   = S5H1409_PARALLEL_OUTPUT,
 330         .gpio          = S5H1409_GPIO_OFF,
 331         .inversion     = S5H1409_INVERSION_OFF,
 332         .status_mode   = S5H1409_DEMODLOCKING,
 333         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
 334 };
 335
 336 static struct tda18271_std_map kworld_a340_std_map = {
 337         .atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 0,
 338                       .if_lvl = 1, .rfagc_top = 0x37, },
 339         .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 1,
 340                       .if_lvl = 1, .rfagc_top = 0x37, },
 341 };
 342
 343 static struct tda18271_config kworld_a340_config = {
 344         .std_map           = &kworld_a340_std_map,
 345 };
 346
 347 static struct tda18271_config kworld_ub435q_v2_config = {
 348         .std_map        = &kworld_a340_std_map,
 349         .gate           = TDA18271_GATE_DIGITAL,
 350 };
 351
 352 static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
 353         .demod_address = (0x1e >> 1),
 354         .no_tuner = 1,
 355         .disable_i2c_gate_ctrl = 1,
 356         .parallel_ts = 1,
 357         .if2 = 45600,
 358 };
 359
 360 static struct drxd_config em28xx_drxd = {
 361         .demod_address = 0x70,
 362         .demod_revision = 0xa2,
 363         .pll_type = DRXD_PLL_NONE,
 364         .clock = 12000,
 365         .insert_rs_byte = 1,
 366         .IF = 42800000,
 367         .disable_i2c_gate_ctrl = 1,
 368 };
 369
 370 static struct drxk_config terratec_h5_drxk = {
 371         .adr = 0x29,
 372         .single_master = 1,
 373         .no_i2c_bridge = 1,
 374         .microcode_name = "dvb-usb-terratec-h5-drxk.fw",
 375         .qam_demod_parameter_count = 2,
 376         .load_firmware_sync = true,
 377 };
 378
 379 static struct drxk_config hauppauge_930c_drxk = {
 380         .adr = 0x29,
 381         .single_master = 1,
 382         .no_i2c_bridge = 1,
 383         .microcode_name = "dvb-usb-hauppauge-hvr930c-drxk.fw",
 384         .chunk_size = 56,
 385         .qam_demod_parameter_count = 2,
 386         .load_firmware_sync = true,
 387 };
 388
 389 static struct drxk_config terratec_htc_stick_drxk = {
 390         .adr = 0x29,
 391         .single_master = 1,
 392         .no_i2c_bridge = 1,
 393         .microcode_name = "dvb-usb-terratec-htc-stick-drxk.fw",
 394         .chunk_size = 54,
 395         .qam_demod_parameter_count = 2,
 396         /* Required for the antenna_gpio to disable LNA. */
 397         .antenna_dvbt = true,
 398         /* The windows driver uses the same. This will disable LNA. */
 399         .antenna_gpio = 0x6,
 400         .load_firmware_sync = true,
 401 };
 402
 403 static struct drxk_config maxmedia_ub425_tc_drxk = {
 404         .adr = 0x29,
 405         .single_master = 1,
 406         .no_i2c_bridge = 1,
 407         .microcode_name = "dvb-demod-drxk-01.fw",
 408         .chunk_size = 62,
 409         .load_firmware_sync = true,
 410         .qam_demod_parameter_count = 2,
 411 };
 412
 413 static struct drxk_config pctv_520e_drxk = {
 414         .adr = 0x29,
 415         .single_master = 1,
 416         .microcode_name = "dvb-demod-drxk-pctv.fw",
 417         .qam_demod_parameter_count = 2,
 418         .chunk_size = 58,
 419         .antenna_dvbt = true, /* disable LNA */
 420         .antenna_gpio = (1 << 2), /* disable LNA */
 421         .load_firmware_sync = true,
 422 };
 423
 424 static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
 425 {
 426         struct em28xx_dvb *dvb = fe->sec_priv;
 427         int status;
 428
 429         if (!dvb)
 430                 return -EINVAL;
 431
 432         if (enable) {
 433                 down(&dvb->pll_mutex);
 434                 status = dvb->gate_ctrl(fe, 1);
 435         } else {
 436                 status = dvb->gate_ctrl(fe, 0);
 437                 up(&dvb->pll_mutex);
 438         }
 439         return status;
 440 }
 441
 442 static void hauppauge_hvr930c_init(struct em28xx *dev)
 443 {
 444         int i;
 445
 446         struct em28xx_reg_seq hauppauge_hvr930c_init[] = {
 447                 {EM2874_R80_GPIO_P0_CTRL,       0xff,   0xff,   0x65},
 448                 {EM2874_R80_GPIO_P0_CTRL,       0xfb,   0xff,   0x32},
 449                 {EM2874_R80_GPIO_P0_CTRL,       0xff,   0xff,   0xb8},
 450                 {       -1,                     -1,     -1,     -1},
 451         };
 452         struct em28xx_reg_seq hauppauge_hvr930c_end[] = {
 453                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x01},
 454                 {EM2874_R80_GPIO_P0_CTRL,       0xaf,   0xff,   0x65},
 455                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x76},
 456                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x01},
 457                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x0b},
 458                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x40},
 459
 460                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x65},
 461                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x65},
 462                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x0b},
 463                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x65},
 464
 465                 {       -1,                     -1,     -1,     -1},
 466         };
 467
 468         struct {
 469                 unsigned char r[4];
 470                 int len;
 471         } regs[] = {
 472                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 473                 {{ 0x01, 0x02 }, 2},
 474                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 475                 {{ 0x01, 0x00 }, 2},
 476                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 477                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 478                 {{ 0x01, 0x00 }, 2},
 479                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 480                 {{ 0x04, 0x00 }, 2},
 481                 {{ 0x00, 0x04 }, 2},
 482                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 483                 {{ 0x04, 0x14 }, 2},
 484                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 485         };
 486
 487         em28xx_gpio_set(dev, hauppauge_hvr930c_init);
 488         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 489         msleep(10);
 490         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 491         msleep(10);
 492
 493         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 494
 495         for (i = 0; i < ARRAY_SIZE(regs); i++)
 496                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 497         em28xx_gpio_set(dev, hauppauge_hvr930c_end);
 498
 499         msleep(100);
 500
 501         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 502         msleep(30);
 503
 504         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 505         msleep(10);
 506
 507 }
 508
 509 static void terratec_h5_init(struct em28xx *dev)
 510 {
 511         int i;
 512         struct em28xx_reg_seq terratec_h5_init[] = {
 513                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 514                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 515                 {EM2874_R80_GPIO_P0_CTRL,       0xf2,   0xff,   50},
 516                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 517                 {       -1,                     -1,     -1,     -1},
 518         };
 519         struct em28xx_reg_seq terratec_h5_end[] = {
 520                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 521                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   50},
 522                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 523                 {       -1,                     -1,     -1,     -1},
 524         };
 525         struct {
 526                 unsigned char r[4];
 527                 int len;
 528         } regs[] = {
 529                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 530                 {{ 0x01, 0x02 }, 2},
 531                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 532                 {{ 0x01, 0x00 }, 2},
 533                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 534                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 535                 {{ 0x01, 0x00 }, 2},
 536                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 537                 {{ 0x04, 0x00 }, 2},
 538                 {{ 0x00, 0x04 }, 2},
 539                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 540                 {{ 0x04, 0x14 }, 2},
 541                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 542         };
 543
 544         em28xx_gpio_set(dev, terratec_h5_init);
 545         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 546         msleep(10);
 547         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 548         msleep(10);
 549
 550         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 551
 552         for (i = 0; i < ARRAY_SIZE(regs); i++)
 553                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 554         em28xx_gpio_set(dev, terratec_h5_end);
 555 };
 556
 557 static void terratec_htc_stick_init(struct em28xx *dev)
 558 {
 559         int i;
 560
 561         /*
 562          * GPIO configuration:
 563          * 0xff: unknown (does not affect DVB-T).
 564          * 0xf6: DRX-K (demodulator).
 565          * 0xe6: unknown (does not affect DVB-T).
 566          * 0xb6: unknown (does not affect DVB-T).
 567          */
 568         struct em28xx_reg_seq terratec_htc_stick_init[] = {
 569                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 570                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 571                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   50},
 572                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 573                 {       -1,                     -1,     -1,     -1},
 574         };
 575         struct em28xx_reg_seq terratec_htc_stick_end[] = {
 576                 {EM2874_R80_GPIO_P0_CTRL,       0xb6,   0xff,   100},
 577                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   50},
 578                 {       -1,                     -1,     -1,     -1},
 579         };
 580
 581         /*
 582          * Init the analog decoder (not yet supported), but
 583          * it's probably still a good idea.
 584          */
 585         struct {
 586                 unsigned char r[4];
 587                 int len;
 588         } regs[] = {
 589                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 590                 {{ 0x01, 0x02 }, 2},
 591                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 592                 {{ 0x01, 0x00 }, 2},
 593                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 594         };
 595
 596         em28xx_gpio_set(dev, terratec_htc_stick_init);
 597
 598         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 599         msleep(10);
 600         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 601         msleep(10);
 602
 603         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 604
 605         for (i = 0; i < ARRAY_SIZE(regs); i++)
 606                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 607
 608         em28xx_gpio_set(dev, terratec_htc_stick_end);
 609 };
 610
 611 static void terratec_htc_usb_xs_init(struct em28xx *dev)
 612 {
 613         int i;
 614
 615         struct em28xx_reg_seq terratec_htc_usb_xs_init[] = {
 616                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 617                 {EM2874_R80_GPIO_P0_CTRL,       0xb2,   0xff,   100},
 618                 {EM2874_R80_GPIO_P0_CTRL,       0xb2,   0xff,   50},
 619                 {EM2874_R80_GPIO_P0_CTRL,       0xb6,   0xff,   100},
 620                 {       -1,                     -1,     -1,     -1},
 621         };
 622         struct em28xx_reg_seq terratec_htc_usb_xs_end[] = {
 623                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   100},
 624                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   50},
 625                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 626                 {       -1,                     -1,     -1,     -1},
 627         };
 628
 629         /*
 630          * Init the analog decoder (not yet supported), but
 631          * it's probably still a good idea.
 632          */
 633         struct {
 634                 unsigned char r[4];
 635                 int len;
 636         } regs[] = {
 637                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 638                 {{ 0x01, 0x02 }, 2},
 639                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 640                 {{ 0x01, 0x00 }, 2},
 641                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 642                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 643                 {{ 0x01, 0x00 }, 2},
 644                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 645                 {{ 0x04, 0x00 }, 2},
 646                 {{ 0x00, 0x04 }, 2},
 647                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 648                 {{ 0x04, 0x14 }, 2},
 649                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 650         };
 651
 652         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 653
 654         em28xx_gpio_set(dev, terratec_htc_usb_xs_init);
 655
 656         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 657         msleep(10);
 658         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 659         msleep(10);
 660
 661         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 662
 663         for (i = 0; i < ARRAY_SIZE(regs); i++)
 664                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 665
 666         em28xx_gpio_set(dev, terratec_htc_usb_xs_end);
 667 };
 668
 669 static void pctv_520e_init(struct em28xx *dev)
 670 {
 671         /*
 672          * Init AVF4910B analog decoder. Looks like I2C traffic to
 673          * digital demodulator and tuner are routed via AVF4910B.
 674          */
 675         int i;
 676         struct {
 677                 unsigned char r[4];
 678                 int len;
 679         } regs[] = {
 680                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 681                 {{ 0x01, 0x02 }, 2},
 682                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 683                 {{ 0x01, 0x00 }, 2},
 684                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 685                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 686                 {{ 0x01, 0x00 }, 2},
 687                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 688         };
 689
 690         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1; /* 0x41 */
 691
 692         for (i = 0; i < ARRAY_SIZE(regs); i++)
 693                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 694 };
 695
 696 static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe)
 697 {
 698         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 699         struct em28xx *dev = fe->dvb->priv;
 700 #ifdef CONFIG_GPIOLIB
 701         struct em28xx_dvb *dvb = dev->dvb;
 702         int ret;
 703         unsigned long flags;
 704
 705         if (c->lna == 1)
 706                 flags = GPIOF_OUT_INIT_HIGH; /* enable LNA */
 707         else
 708                 flags = GPIOF_OUT_INIT_LOW; /* disable LNA */
 709
 710         ret = gpio_request_one(dvb->lna_gpio, flags, NULL);
 711         if (ret)
 712                 em28xx_errdev("gpio request failed %d\n", ret);
 713         else
 714                 gpio_free(dvb->lna_gpio);
 715
 716         return ret;
 717 #else
 718         dev_warn(&dev->udev->dev, "%s: LNA control is disabled (lna=%u)\n",
 719                         KBUILD_MODNAME, c->lna);
 720         return 0;
 721 #endif
 722 }
 723
 724 static int em28xx_mt352_terratec_xs_init(struct dvb_frontend *fe)
 725 {
 726         /* Values extracted from a USB trace of the Terratec Windows driver */
 727         static u8 clock_config[]   = { CLOCK_CTL,  0x38, 0x2c };
 728         static u8 reset[]          = { RESET,      0x80 };
 729         static u8 adc_ctl_1_cfg[]  = { ADC_CTL_1,  0x40 };
 730         static u8 agc_cfg[]        = { AGC_TARGET, 0x28, 0xa0 };
 731         static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
 732         static u8 rs_err_cfg[]     = { RS_ERR_PER_1, 0x00, 0x4d };
 733         static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
 734         static u8 trl_nom_cfg[]    = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
 735         static u8 tps_given_cfg[]  = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
 736         static u8 tuner_go[]       = { TUNER_GO, 0x01};
 737
 738         mt352_write(fe, clock_config,   sizeof(clock_config));
 739         udelay(200);
 740         mt352_write(fe, reset,          sizeof(reset));
 741         mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));
 742         mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
 743         mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
 744         mt352_write(fe, rs_err_cfg,     sizeof(rs_err_cfg));
 745         mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
 746         mt352_write(fe, trl_nom_cfg,    sizeof(trl_nom_cfg));
 747         mt352_write(fe, tps_given_cfg,  sizeof(tps_given_cfg));
 748         mt352_write(fe, tuner_go,       sizeof(tuner_go));
 749         return 0;
 750 }
 751
 752 static struct mt352_config terratec_xs_mt352_cfg = {
 753         .demod_address = (0x1e >> 1),
 754         .no_tuner = 1,
 755         .if2 = 45600,
 756         .demod_init = em28xx_mt352_terratec_xs_init,
 757 };
 758
 759 static struct tda10023_config em28xx_tda10023_config = {
 760         .demod_address = 0x0c,
 761         .invert = 1,
 762 };
 763
 764 static struct cxd2820r_config em28xx_cxd2820r_config = {
 765         .i2c_address = (0xd8 >> 1),
 766         .ts_mode = CXD2820R_TS_SERIAL,
 767 };
 768
 769 static struct tda18271_config em28xx_cxd2820r_tda18271_config = {
 770         .output_opt = TDA18271_OUTPUT_LT_OFF,
 771         .gate = TDA18271_GATE_DIGITAL,
 772 };
 773
 774 static const struct tda10071_config em28xx_tda10071_config = {
 775         .demod_i2c_addr = 0x55, /* (0xaa >> 1) */
 776         .tuner_i2c_addr = 0x14,
 777         .i2c_wr_max = 64,
 778         .ts_mode = TDA10071_TS_SERIAL,
 779         .spec_inv = 0,
 780         .xtal = 40444000, /* 40.444 MHz */
 781         .pll_multiplier = 20,
 782 };
 783
 784 static const struct a8293_config em28xx_a8293_config = {
 785         .i2c_addr = 0x08, /* (0x10 >> 1) */
 786 };
 787
 788 static struct zl10353_config em28xx_zl10353_no_i2c_gate_dev = {
 789         .demod_address = (0x1e >> 1),
 790         .disable_i2c_gate_ctrl = 1,
 791         .no_tuner = 1,
 792         .parallel_ts = 1,
 793 };
 794 static struct qt1010_config em28xx_qt1010_config = {
 795         .i2c_address = 0x62
 796 };
 797
 798 static const struct mb86a20s_config c3tech_duo_mb86a20s_config = {
 799         .demod_address = 0x10,
 800         .is_serial = true,
 801 };
 802
 803 static struct tda18271_std_map mb86a20s_tda18271_config = {
 804         .dvbt_6   = { .if_freq = 4000, .agc_mode = 3, .std = 4,
 805                       .if_lvl = 1, .rfagc_top = 0x37, },
 806 };
 807
 808 static struct tda18271_config c3tech_duo_tda18271_config = {
 809         .std_map = &mb86a20s_tda18271_config,
 810         .gate    = TDA18271_GATE_DIGITAL,
 811         .small_i2c = TDA18271_03_BYTE_CHUNK_INIT,
 812 };
 813
 814 static const struct m88ds3103_config pctv_461e_m88ds3103_config = {
 815         .i2c_addr = 0x68,
 816         .clock = 27000000,
 817         .i2c_wr_max = 33,
 818         .clock_out = 0,
 819         .ts_mode = M88DS3103_TS_PARALLEL_16,
 820         .agc = 0x99,
 821 };
 822
 823 /* ------------------------------------------------------------------ */
 824
 825 static int em28xx_attach_xc3028(u8 addr, struct em28xx *dev)
 826 {
 827         struct dvb_frontend *fe;
 828         struct xc2028_config cfg;
 829
 830         memset(&cfg, 0, sizeof(cfg));
 831         cfg.i2c_adap  = &dev->i2c_adap[dev->def_i2c_bus];
 832         cfg.i2c_addr  = addr;
 833
 834         if (!dev->dvb->fe[0]) {
 835                 em28xx_errdev("/2: dvb frontend not attached. "
 836                                 "Can't attach xc3028\n");
 837                 return -EINVAL;
 838         }
 839
 840         fe = dvb_attach(xc2028_attach, dev->dvb->fe[0], &cfg);
 841         if (!fe) {
 842                 em28xx_errdev("/2: xc3028 attach failed\n");
 843                 dvb_frontend_detach(dev->dvb->fe[0]);
 844                 dev->dvb->fe[0] = NULL;
 845                 return -EINVAL;
 846         }
 847
 848         em28xx_info("%s/2: xc3028 attached\n", dev->name);
 849
 850         return 0;
 851 }
 852
 853 /* ------------------------------------------------------------------ */
 854
 855 static int em28xx_register_dvb(struct em28xx_dvb *dvb, struct module *module,
 856                                struct em28xx *dev, struct device *device)
 857 {
 858         int result;
 859
 860         mutex_init(&dvb->lock);
 861
 862         /* register adapter */
 863         result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
 864                                       adapter_nr);
 865         if (result < 0) {
 866                 printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
 867                        dev->name, result);
 868                 goto fail_adapter;
 869         }
 870
 871         /* Ensure all frontends negotiate bus access */
 872         dvb->fe[0]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 873         if (dvb->fe[1])
 874                 dvb->fe[1]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 875
 876         dvb->adapter.priv = &dev->i2c_bus[dev->def_i2c_bus];
 877
 878         /* register frontend */
 879         result = dvb_register_frontend(&dvb->adapter, dvb->fe[0]);
 880         if (result < 0) {
 881                 printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
 882                        dev->name, result);
 883                 goto fail_frontend0;
 884         }
 885
 886         /* register 2nd frontend */
 887         if (dvb->fe[1]) {
 888                 result = dvb_register_frontend(&dvb->adapter, dvb->fe[1]);
 889                 if (result < 0) {
 890                         printk(KERN_WARNING "%s: 2nd dvb_register_frontend failed (errno = %d)\n",
 891                                 dev->name, result);
 892                         goto fail_frontend1;
 893                 }
 894         }
 895
 896         /* register demux stuff */
 897         dvb->demux.dmx.capabilities =
 898                 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 899                 DMX_MEMORY_BASED_FILTERING;
 900         dvb->demux.priv       = dvb;
 901         dvb->demux.filternum  = 256;
 902         dvb->demux.feednum    = 256;
 903         dvb->demux.start_feed = em28xx_start_feed;
 904         dvb->demux.stop_feed  = em28xx_stop_feed;
 905
 906         result = dvb_dmx_init(&dvb->demux);
 907         if (result < 0) {
 908                 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
 909                        dev->name, result);
 910                 goto fail_dmx;
 911         }
 912
 913         dvb->dmxdev.filternum    = 256;
 914         dvb->dmxdev.demux        = &dvb->demux.dmx;
 915         dvb->dmxdev.capabilities = 0;
 916         result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
 917         if (result < 0) {
 918                 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
 919                        dev->name, result);
 920                 goto fail_dmxdev;
 921         }
 922
 923         dvb->fe_hw.source = DMX_FRONTEND_0;
 924         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 925         if (result < 0) {
 926                 printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
 927                        dev->name, result);
 928                 goto fail_fe_hw;
 929         }
 930
 931         dvb->fe_mem.source = DMX_MEMORY_FE;
 932         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 933         if (result < 0) {
 934                 printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
 935                        dev->name, result);
 936                 goto fail_fe_mem;
 937         }
 938
 939         result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 940         if (result < 0) {
 941                 printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
 942                        dev->name, result);
 943                 goto fail_fe_conn;
 944         }
 945
 946         /* register network adapter */
 947         dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
 948         return 0;
 949
 950 fail_fe_conn:
 951         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 952 fail_fe_mem:
 953         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 954 fail_fe_hw:
 955         dvb_dmxdev_release(&dvb->dmxdev);
 956 fail_dmxdev:
 957         dvb_dmx_release(&dvb->demux);
 958 fail_dmx:
 959         if (dvb->fe[1])
 960                 dvb_unregister_frontend(dvb->fe[1]);
 961         dvb_unregister_frontend(dvb->fe[0]);
 962 fail_frontend1:
 963         if (dvb->fe[1])
 964                 dvb_frontend_detach(dvb->fe[1]);
 965 fail_frontend0:
 966         dvb_frontend_detach(dvb->fe[0]);
 967         dvb_unregister_adapter(&dvb->adapter);
 968 fail_adapter:
 969         return result;
 970 }
 971
 972 static void em28xx_unregister_dvb(struct em28xx_dvb *dvb)
 973 {
 974         dvb_net_release(&dvb->net);
 975         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 976         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 977         dvb_dmxdev_release(&dvb->dmxdev);
 978         dvb_dmx_release(&dvb->demux);
 979         if (dvb->fe[1])
 980                 dvb_unregister_frontend(dvb->fe[1]);
 981         dvb_unregister_frontend(dvb->fe[0]);
 982         if (dvb->fe[1] && !dvb->dont_attach_fe1)
 983                 dvb_frontend_detach(dvb->fe[1]);
 984         dvb_frontend_detach(dvb->fe[0]);
 985         dvb_unregister_adapter(&dvb->adapter);
 986 }
 987
 988 static int em28xx_dvb_init(struct em28xx *dev)
 989 {
 990         int result = 0, mfe_shared = 0;
 991         struct em28xx_dvb *dvb;
 992
 993         if (!dev->board.has_dvb) {
 994                 /* This device does not support the extension */
 995                 printk(KERN_INFO "em28xx_dvb: This device does not support the extension\n");
 996                 return 0;
 997         }
 998
 999         dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
1000
1001         if (dvb == NULL) {
1002                 em28xx_info("em28xx_dvb: memory allocation failed\n");
1003                 return -ENOMEM;
1004         }
1005         dev->dvb = dvb;
1006         dvb->fe[0] = dvb->fe[1] = NULL;
1007
1008         mutex_lock(&dev->lock);
1009         em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
1010         /* init frontend */
1011         switch (dev->model) {
1012         case EM2874_BOARD_LEADERSHIP_ISDBT:
1013                 dvb->fe[0] = dvb_attach(s921_attach,
1014                                 &sharp_isdbt, &dev->i2c_adap[dev->def_i2c_bus]);
1015
1016                 if (!dvb->fe[0]) {
1017                         result = -EINVAL;
1018                         goto out_free;
1019                 }
1020
1021                 break;
1022         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
1023         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
1024         case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
1025         case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
1026                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
1027                                            &em2880_lgdt3303_dev,
1028                                            &dev->i2c_adap[dev->def_i2c_bus]);
1029                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1030                         result = -EINVAL;
1031                         goto out_free;
1032                 }
1033                 break;
1034         case EM2880_BOARD_KWORLD_DVB_310U:
1035                 dvb->fe[0] = dvb_attach(zl10353_attach,
1036                                            &em28xx_zl10353_with_xc3028,
1037                                            &dev->i2c_adap[dev->def_i2c_bus]);
1038                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1039                         result = -EINVAL;
1040                         goto out_free;
1041                 }
1042                 break;
1043         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
1044         case EM2882_BOARD_TERRATEC_HYBRID_XS:
1045         case EM2880_BOARD_EMPIRE_DUAL_TV:
1046                 dvb->fe[0] = dvb_attach(zl10353_attach,
1047                                            &em28xx_zl10353_xc3028_no_i2c_gate,
1048                                            &dev->i2c_adap[dev->def_i2c_bus]);
1049                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1050                         result = -EINVAL;
1051                         goto out_free;
1052                 }
1053                 break;
1054         case EM2880_BOARD_TERRATEC_HYBRID_XS:
1055         case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
1056         case EM2881_BOARD_PINNACLE_HYBRID_PRO:
1057         case EM2882_BOARD_DIKOM_DK300:
1058         case EM2882_BOARD_KWORLD_VS_DVBT:
1059                 dvb->fe[0] = dvb_attach(zl10353_attach,
1060                                            &em28xx_zl10353_xc3028_no_i2c_gate,
1061                                            &dev->i2c_adap[dev->def_i2c_bus]);
1062                 if (dvb->fe[0] == NULL) {
1063                         /* This board could have either a zl10353 or a mt352.
1064                            If the chip id isn't for zl10353, try mt352 */
1065                         dvb->fe[0] = dvb_attach(mt352_attach,
1066                                                    &terratec_xs_mt352_cfg,
1067                                                    &dev->i2c_adap[dev->def_i2c_bus]);
1068                 }
1069
1070                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1071                         result = -EINVAL;
1072                         goto out_free;
1073                 }
1074                 break;
1075         case EM2870_BOARD_KWORLD_355U:
1076                 dvb->fe[0] = dvb_attach(zl10353_attach,
1077                                            &em28xx_zl10353_no_i2c_gate_dev,
1078                                            &dev->i2c_adap[dev->def_i2c_bus]);
1079                 if (dvb->fe[0] != NULL)
1080                         dvb_attach(qt1010_attach, dvb->fe[0],
1081                                    &dev->i2c_adap[dev->def_i2c_bus], &em28xx_qt1010_config);
1082                 break;
1083         case EM2883_BOARD_KWORLD_HYBRID_330U:
1084         case EM2882_BOARD_EVGA_INDTUBE:
1085                 dvb->fe[0] = dvb_attach(s5h1409_attach,
1086                                            &em28xx_s5h1409_with_xc3028,
1087                                            &dev->i2c_adap[dev->def_i2c_bus]);
1088                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1089                         result = -EINVAL;
1090                         goto out_free;
1091                 }
1092                 break;
1093         case EM2882_BOARD_KWORLD_ATSC_315U:
1094                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
1095                                            &em2880_lgdt3303_dev,
1096                                            &dev->i2c_adap[dev->def_i2c_bus]);
1097                 if (dvb->fe[0] != NULL) {
1098                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1099                                 &dev->i2c_adap[dev->def_i2c_bus], 0x61, TUNER_THOMSON_DTT761X)) {
1100                                 result = -EINVAL;
1101                                 goto out_free;
1102                         }
1103                 }
1104                 break;
1105         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
1106         case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
1107                 dvb->fe[0] = dvb_attach(drxd_attach, &em28xx_drxd, NULL,
1108                                            &dev->i2c_adap[dev->def_i2c_bus], &dev->udev->dev);
1109                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1110                         result = -EINVAL;
1111                         goto out_free;
1112                 }
1113                 break;
1114         case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
1115                 /* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
1116                 dvb->fe[0] = dvb_attach(tda10023_attach,
1117                         &em28xx_tda10023_config,
1118                         &dev->i2c_adap[dev->def_i2c_bus], 0x48);
1119                 if (dvb->fe[0]) {
1120                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1121                                 &dev->i2c_adap[dev->def_i2c_bus], 0x60, TUNER_PHILIPS_CU1216L)) {
1122                                 result = -EINVAL;
1123                                 goto out_free;
1124                         }
1125                 }
1126                 break;
1127         case EM2870_BOARD_KWORLD_A340:
1128                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1129                                            &em2870_lgdt3304_dev,
1130                                            &dev->i2c_adap[dev->def_i2c_bus]);
1131                 if (dvb->fe[0] != NULL)
1132                         dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1133                                    &dev->i2c_adap[dev->def_i2c_bus], &kworld_a340_config);
1134                 break;
1135         case EM28174_BOARD_PCTV_290E:
1136                 /* set default GPIO0 for LNA, used if GPIOLIB is undefined */
1137                 dvb->lna_gpio = CXD2820R_GPIO_E | CXD2820R_GPIO_O |
1138                                 CXD2820R_GPIO_L;
1139                 dvb->fe[0] = dvb_attach(cxd2820r_attach,
1140                                         &em28xx_cxd2820r_config,
1141                                         &dev->i2c_adap[dev->def_i2c_bus],
1142                                         &dvb->lna_gpio);
1143                 if (dvb->fe[0]) {
1144                         /* FE 0 attach tuner */
1145                         if (!dvb_attach(tda18271_attach,
1146                                         dvb->fe[0],
1147                                         0x60,
1148                                         &dev->i2c_adap[dev->def_i2c_bus],
1149                                         &em28xx_cxd2820r_tda18271_config)) {
1150
1151                                 dvb_frontend_detach(dvb->fe[0]);
1152                                 result = -EINVAL;
1153                                 goto out_free;
1154                         }
1155
1156 #ifdef CONFIG_GPIOLIB
1157                         /* enable LNA for DVB-T, DVB-T2 and DVB-C */
1158                         result = gpio_request_one(dvb->lna_gpio,
1159                                         GPIOF_OUT_INIT_LOW, NULL);
1160                         if (result)
1161                                 em28xx_errdev("gpio request failed %d\n",
1162                                                 result);
1163                         else
1164                                 gpio_free(dvb->lna_gpio);
1165
1166                         result = 0; /* continue even set LNA fails */
1167 #endif
1168                         dvb->fe[0]->ops.set_lna = em28xx_pctv_290e_set_lna;
1169                 }
1170
1171                 break;
1172         case EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C:
1173         {
1174                 struct xc5000_config cfg;
1175                 hauppauge_hvr930c_init(dev);
1176
1177                 dvb->fe[0] = dvb_attach(drxk_attach,
1178                                         &hauppauge_930c_drxk, &dev->i2c_adap[dev->def_i2c_bus]);
1179                 if (!dvb->fe[0]) {
1180                         result = -EINVAL;
1181                         goto out_free;
1182                 }
1183                 /* FIXME: do we need a pll semaphore? */
1184                 dvb->fe[0]->sec_priv = dvb;
1185                 sema_init(&dvb->pll_mutex, 1);
1186                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1187                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1188
1189                 /* Attach xc5000 */
1190                 memset(&cfg, 0, sizeof(cfg));
1191                 cfg.i2c_address  = 0x61;
1192                 cfg.if_khz = 4000;
1193
1194                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1195                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1196                 if (!dvb_attach(xc5000_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus],
1197                                 &cfg)) {
1198                         result = -EINVAL;
1199                         goto out_free;
1200                 }
1201                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1202                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1203
1204                 break;
1205         }
1206         case EM2884_BOARD_TERRATEC_H5:
1207                 terratec_h5_init(dev);
1208
1209                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_h5_drxk, &dev->i2c_adap[dev->def_i2c_bus]);
1210                 if (!dvb->fe[0]) {
1211                         result = -EINVAL;
1212                         goto out_free;
1213                 }
1214                 /* FIXME: do we need a pll semaphore? */
1215                 dvb->fe[0]->sec_priv = dvb;
1216                 sema_init(&dvb->pll_mutex, 1);
1217                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1218                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1219
1220                 /* Attach tda18271 to DVB-C frontend */
1221                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1222                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1223                 if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus], 0x60)) {
1224                         result = -EINVAL;
1225                         goto out_free;
1226                 }
1227                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1228                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1229
1230                 break;
1231         case EM2884_BOARD_C3TECH_DIGITAL_DUO:
1232                 dvb->fe[0] = dvb_attach(mb86a20s_attach,
1233                                            &c3tech_duo_mb86a20s_config,
1234                                            &dev->i2c_adap[dev->def_i2c_bus]);
1235                 if (dvb->fe[0] != NULL)
1236                         dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1237                                    &dev->i2c_adap[dev->def_i2c_bus],
1238                                    &c3tech_duo_tda18271_config);
1239                 break;
1240         case EM28174_BOARD_PCTV_460E:
1241                 /* attach demod */
1242                 dvb->fe[0] = dvb_attach(tda10071_attach,
1243                         &em28xx_tda10071_config, &dev->i2c_adap[dev->def_i2c_bus]);
1244
1245                 /* attach SEC */
1246                 if (dvb->fe[0])
1247                         dvb_attach(a8293_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus],
1248                                 &em28xx_a8293_config);
1249                 break;
1250         case EM2874_BOARD_DELOCK_61959:
1251         case EM2874_BOARD_MAXMEDIA_UB425_TC:
1252                 /* attach demodulator */
1253                 dvb->fe[0] = dvb_attach(drxk_attach, &maxmedia_ub425_tc_drxk,
1254                                 &dev->i2c_adap[dev->def_i2c_bus]);
1255
1256                 if (dvb->fe[0]) {
1257                         /* disable I2C-gate */
1258                         dvb->fe[0]->ops.i2c_gate_ctrl = NULL;
1259
1260                         /* attach tuner */
1261                         if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1262                                         &dev->i2c_adap[dev->def_i2c_bus],
1263                                         &em28xx_cxd2820r_tda18271_config)) {
1264                                 dvb_frontend_detach(dvb->fe[0]);
1265                                 result = -EINVAL;
1266                                 goto out_free;
1267                         }
1268                 }
1269                 break;
1270         case EM2884_BOARD_PCTV_510E:
1271         case EM2884_BOARD_PCTV_520E:
1272                 pctv_520e_init(dev);
1273
1274                 /* attach demodulator */
1275                 dvb->fe[0] = dvb_attach(drxk_attach, &pctv_520e_drxk,
1276                                 &dev->i2c_adap[dev->def_i2c_bus]);
1277
1278                 if (dvb->fe[0]) {
1279                         /* attach tuner */
1280                         if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1281                                         &dev->i2c_adap[dev->def_i2c_bus],
1282                                         &em28xx_cxd2820r_tda18271_config)) {
1283                                 dvb_frontend_detach(dvb->fe[0]);
1284                                 result = -EINVAL;
1285                                 goto out_free;
1286                         }
1287                 }
1288                 break;
1289         case EM2884_BOARD_CINERGY_HTC_STICK:
1290                 terratec_htc_stick_init(dev);
1291
1292                 /* attach demodulator */
1293                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1294                                         &dev->i2c_adap[dev->def_i2c_bus]);
1295                 if (!dvb->fe[0]) {
1296                         result = -EINVAL;
1297                         goto out_free;
1298                 }
1299
1300                 /* Attach the demodulator. */
1301                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1302                                 &dev->i2c_adap[dev->def_i2c_bus],
1303                                 &em28xx_cxd2820r_tda18271_config)) {
1304                         result = -EINVAL;
1305                         goto out_free;
1306                 }
1307                 break;
1308         case EM2884_BOARD_TERRATEC_HTC_USB_XS:
1309                 terratec_htc_usb_xs_init(dev);
1310
1311                 /* attach demodulator */
1312                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1313                                         &dev->i2c_adap[dev->def_i2c_bus]);
1314                 if (!dvb->fe[0]) {
1315                         result = -EINVAL;
1316                         goto out_free;
1317                 }
1318
1319                 /* Attach the demodulator. */
1320                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1321                                 &dev->i2c_adap[dev->def_i2c_bus],
1322                                 &em28xx_cxd2820r_tda18271_config)) {
1323                         result = -EINVAL;
1324                         goto out_free;
1325                 }
1326                 break;
1327         case EM2874_BOARD_KWORLD_UB435Q_V2:
1328                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1329                                         &em2874_lgdt3305_dev,
1330                                         &dev->i2c_adap[dev->def_i2c_bus]);
1331                 if (!dvb->fe[0]) {
1332                         result = -EINVAL;
1333                         goto out_free;
1334                 }
1335
1336                 /* Attach the demodulator. */
1337                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1338                                 &dev->i2c_adap[dev->def_i2c_bus],
1339                                 &kworld_ub435q_v2_config)) {
1340                         result = -EINVAL;
1341                         goto out_free;
1342                 }
1343                 break;
1344         case EM28178_BOARD_PCTV_461E:
1345                 {
1346                         /* demod I2C adapter */
1347                         struct i2c_adapter *i2c_adapter;
1348                         struct i2c_board_info info;
1349                         struct m88ts2022_config m88ts2022_config = {
1350                                 .clock = 27000000,
1351                         };
1352                         memset(&info, 0, sizeof(struct i2c_board_info));
1353
1354                         /* attach demod */
1355                         dvb->fe[0] = dvb_attach(m88ds3103_attach,
1356                                         &pctv_461e_m88ds3103_config,
1357                                         &dev->i2c_adap[dev->def_i2c_bus],
1358                                         &i2c_adapter);
1359                         if (dvb->fe[0] == NULL) {
1360                                 result = -ENODEV;
1361                                 goto out_free;
1362                         }
1363
1364                         /* attach tuner */
1365                         m88ts2022_config.fe = dvb->fe[0];
1366                         strlcpy(info.type, "m88ts2022", I2C_NAME_SIZE);
1367                         info.addr = 0x60;
1368                         info.platform_data = &m88ts2022_config;
1369                         request_module("m88ts2022");
1370                         dvb->i2c_client_tuner = i2c_new_device(i2c_adapter, &info);
1371
1372                         /* delegate signal strength measurement to tuner */
1373                         dvb->fe[0]->ops.read_signal_strength =
1374                                         dvb->fe[0]->ops.tuner_ops.get_rf_strength;
1375
1376                         /* attach SEC */
1377                         if (!dvb_attach(a8293_attach, dvb->fe[0],
1378                                         &dev->i2c_adap[dev->def_i2c_bus],
1379                                         &em28xx_a8293_config)) {
1380                                 dvb_frontend_detach(dvb->fe[0]);
1381                                 result = -ENODEV;
1382                                 goto out_free;
1383                         }
1384                 }
1385                 break;
1386         default:
1387                 em28xx_errdev("/2: The frontend of your DVB/ATSC card"
1388                                 " isn't supported yet\n");
1389                 break;
1390         }
1391         if (NULL == dvb->fe[0]) {
1392                 em28xx_errdev("/2: frontend initialization failed\n");
1393                 result = -EINVAL;
1394                 goto out_free;
1395         }
1396         /* define general-purpose callback pointer */
1397         dvb->fe[0]->callback = em28xx_tuner_callback;
1398         if (dvb->fe[1])
1399                 dvb->fe[1]->callback = em28xx_tuner_callback;
1400
1401         /* register everything */
1402         result = em28xx_register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
1403
1404         if (result < 0)
1405                 goto out_free;
1406
1407         /* MFE lock */
1408         dvb->adapter.mfe_shared = mfe_shared;
1409
1410         em28xx_info("Successfully loaded em28xx-dvb\n");
1411 ret:
1412         em28xx_set_mode(dev, EM28XX_SUSPEND);
1413         mutex_unlock(&dev->lock);
1414         return result;
1415
1416 out_free:
1417         kfree(dvb);
1418         dev->dvb = NULL;
1419         goto ret;
1420 }
1421
1422 static inline void prevent_sleep(struct dvb_frontend_ops *ops)
1423 {
1424         ops->set_voltage = NULL;
1425         ops->sleep = NULL;
1426         ops->tuner_ops.sleep = NULL;
1427 }
1428
1429 static int em28xx_dvb_fini(struct em28xx *dev)
1430 {
1431         if (!dev->board.has_dvb) {
1432                 /* This device does not support the extension */
1433                 return 0;
1434         }
1435
1436         if (dev->dvb) {
1437                 struct em28xx_dvb *dvb = dev->dvb;
1438
1439                 if (dev->disconnected) {
1440                         /* We cannot tell the device to sleep
1441                          * once it has been unplugged. */
1442                         if (dvb->fe[0])
1443                                 prevent_sleep(&dvb->fe[0]->ops);
1444                         if (dvb->fe[1])
1445                                 prevent_sleep(&dvb->fe[1]->ops);
1446                 }
1447
1448                 i2c_release_client(dvb->i2c_client_tuner);
1449                 em28xx_unregister_dvb(dvb);
1450                 kfree(dvb);
1451                 dev->dvb = NULL;
1452         }
1453
1454         return 0;
1455 }
1456
1457 static struct em28xx_ops dvb_ops = {
1458         .id   = EM28XX_DVB,
1459         .name = "Em28xx dvb Extension",
1460         .init = em28xx_dvb_init,
1461         .fini = em28xx_dvb_fini,
1462 };
1463
1464 static int __init em28xx_dvb_register(void)
1465 {
1466         return em28xx_register_extension(&dvb_ops);
1467 }
1468
1469 static void __exit em28xx_dvb_unregister(void)
1470 {
1471         em28xx_unregister_extension(&dvb_ops);
1472 }
1473
1474 module_init(em28xx_dvb_register);
1475 module_exit(em28xx_dvb_unregister);