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