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 s921_config sharp_isdbt = {
 302         .demod_address = 0x30 >> 1
 303 };
 304
 305 static struct zl10353_config em28xx_zl10353_with_xc3028 = {
 306         .demod_address = (0x1e >> 1),
 307         .no_tuner = 1,
 308         .parallel_ts = 1,
 309         .if2 = 45600,
 310 };
 311
 312 static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
 313         .demod_address = 0x32 >> 1,
 314         .output_mode   = S5H1409_PARALLEL_OUTPUT,
 315         .gpio          = S5H1409_GPIO_OFF,
 316         .inversion     = S5H1409_INVERSION_OFF,
 317         .status_mode   = S5H1409_DEMODLOCKING,
 318         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
 319 };
 320
 321 static struct tda18271_std_map kworld_a340_std_map = {
 322         .atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 0,
 323                       .if_lvl = 1, .rfagc_top = 0x37, },
 324         .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 1,
 325                       .if_lvl = 1, .rfagc_top = 0x37, },
 326 };
 327
 328 static struct tda18271_config kworld_a340_config = {
 329         .std_map           = &kworld_a340_std_map,
 330 };
 331
 332 static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
 333         .demod_address = (0x1e >> 1),
 334         .no_tuner = 1,
 335         .disable_i2c_gate_ctrl = 1,
 336         .parallel_ts = 1,
 337         .if2 = 45600,
 338 };
 339
 340 static struct drxd_config em28xx_drxd = {
 341         .demod_address = 0x70,
 342         .demod_revision = 0xa2,
 343         .pll_type = DRXD_PLL_NONE,
 344         .clock = 12000,
 345         .insert_rs_byte = 1,
 346         .IF = 42800000,
 347         .disable_i2c_gate_ctrl = 1,
 348 };
 349
 350 static struct drxk_config terratec_h5_drxk = {
 351         .adr = 0x29,
 352         .single_master = 1,
 353         .no_i2c_bridge = 1,
 354         .microcode_name = "dvb-usb-terratec-h5-drxk.fw",
 355         .qam_demod_parameter_count = 2,
 356         .load_firmware_sync = true,
 357 };
 358
 359 static struct drxk_config hauppauge_930c_drxk = {
 360         .adr = 0x29,
 361         .single_master = 1,
 362         .no_i2c_bridge = 1,
 363         .microcode_name = "dvb-usb-hauppauge-hvr930c-drxk.fw",
 364         .chunk_size = 56,
 365         .qam_demod_parameter_count = 2,
 366         .load_firmware_sync = true,
 367 };
 368
 369 static struct drxk_config terratec_htc_stick_drxk = {
 370         .adr = 0x29,
 371         .single_master = 1,
 372         .no_i2c_bridge = 1,
 373         .microcode_name = "dvb-usb-terratec-htc-stick-drxk.fw",
 374         .chunk_size = 54,
 375         .qam_demod_parameter_count = 2,
 376         /* Required for the antenna_gpio to disable LNA. */
 377         .antenna_dvbt = true,
 378         /* The windows driver uses the same. This will disable LNA. */
 379         .antenna_gpio = 0x6,
 380         .load_firmware_sync = true,
 381 };
 382
 383 static struct drxk_config maxmedia_ub425_tc_drxk = {
 384         .adr = 0x29,
 385         .single_master = 1,
 386         .no_i2c_bridge = 1,
 387         .microcode_name = "dvb-demod-drxk-01.fw",
 388         .chunk_size = 62,
 389         .load_firmware_sync = true,
 390 };
 391
 392 static struct drxk_config pctv_520e_drxk = {
 393         .adr = 0x29,
 394         .single_master = 1,
 395         .microcode_name = "dvb-demod-drxk-pctv.fw",
 396         .qam_demod_parameter_count = 2,
 397         .chunk_size = 58,
 398         .antenna_dvbt = true, /* disable LNA */
 399         .antenna_gpio = (1 << 2), /* disable LNA */
 400         .load_firmware_sync = true,
 401 };
 402
 403 static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
 404 {
 405         struct em28xx_dvb *dvb = fe->sec_priv;
 406         int status;
 407
 408         if (!dvb)
 409                 return -EINVAL;
 410
 411         if (enable) {
 412                 down(&dvb->pll_mutex);
 413                 status = dvb->gate_ctrl(fe, 1);
 414         } else {
 415                 status = dvb->gate_ctrl(fe, 0);
 416                 up(&dvb->pll_mutex);
 417         }
 418         return status;
 419 }
 420
 421 static void hauppauge_hvr930c_init(struct em28xx *dev)
 422 {
 423         int i;
 424
 425         struct em28xx_reg_seq hauppauge_hvr930c_init[] = {
 426                 {EM2874_R80_GPIO_P0_CTRL,       0xff,   0xff,   0x65},
 427                 {EM2874_R80_GPIO_P0_CTRL,       0xfb,   0xff,   0x32},
 428                 {EM2874_R80_GPIO_P0_CTRL,       0xff,   0xff,   0xb8},
 429                 { -1,                   -1,     -1,     -1},
 430         };
 431         struct em28xx_reg_seq hauppauge_hvr930c_end[] = {
 432                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x01},
 433                 {EM2874_R80_GPIO_P0_CTRL,       0xaf,   0xff,   0x65},
 434                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x76},
 435                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x01},
 436                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x0b},
 437                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x40},
 438
 439                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x65},
 440                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x65},
 441                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x0b},
 442                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x65},
 443
 444                 { -1,                   -1,     -1,     -1},
 445         };
 446
 447         struct {
 448                 unsigned char r[4];
 449                 int len;
 450         } regs[] = {
 451                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 452                 {{ 0x01, 0x02 }, 2},
 453                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 454                 {{ 0x01, 0x00 }, 2},
 455                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 456                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 457                 {{ 0x01, 0x00 }, 2},
 458                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 459                 {{ 0x04, 0x00 }, 2},
 460                 {{ 0x00, 0x04 }, 2},
 461                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 462                 {{ 0x04, 0x14 }, 2},
 463                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 464         };
 465
 466         em28xx_gpio_set(dev, hauppauge_hvr930c_init);
 467         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 468         msleep(10);
 469         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 470         msleep(10);
 471
 472         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 473
 474         for (i = 0; i < ARRAY_SIZE(regs); i++)
 475                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 476         em28xx_gpio_set(dev, hauppauge_hvr930c_end);
 477
 478         msleep(100);
 479
 480         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 481         msleep(30);
 482
 483         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 484         msleep(10);
 485
 486 }
 487
 488 static void terratec_h5_init(struct em28xx *dev)
 489 {
 490         int i;
 491         struct em28xx_reg_seq terratec_h5_init[] = {
 492                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 493                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 494                 {EM2874_R80_GPIO_P0_CTRL,       0xf2,   0xff,   50},
 495                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 496                 { -1,                   -1,     -1,     -1},
 497         };
 498         struct em28xx_reg_seq terratec_h5_end[] = {
 499                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 500                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   50},
 501                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 502                 { -1,                   -1,     -1,     -1},
 503         };
 504         struct {
 505                 unsigned char r[4];
 506                 int len;
 507         } regs[] = {
 508                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 509                 {{ 0x01, 0x02 }, 2},
 510                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 511                 {{ 0x01, 0x00 }, 2},
 512                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 513                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 514                 {{ 0x01, 0x00 }, 2},
 515                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 516                 {{ 0x04, 0x00 }, 2},
 517                 {{ 0x00, 0x04 }, 2},
 518                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 519                 {{ 0x04, 0x14 }, 2},
 520                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 521         };
 522
 523         em28xx_gpio_set(dev, terratec_h5_init);
 524         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 525         msleep(10);
 526         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 527         msleep(10);
 528
 529         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 530
 531         for (i = 0; i < ARRAY_SIZE(regs); i++)
 532                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 533         em28xx_gpio_set(dev, terratec_h5_end);
 534 };
 535
 536 static void terratec_htc_stick_init(struct em28xx *dev)
 537 {
 538         int i;
 539
 540         /*
 541          * GPIO configuration:
 542          * 0xff: unknown (does not affect DVB-T).
 543          * 0xf6: DRX-K (demodulator).
 544          * 0xe6: unknown (does not affect DVB-T).
 545          * 0xb6: unknown (does not affect DVB-T).
 546          */
 547         struct em28xx_reg_seq terratec_htc_stick_init[] = {
 548                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 549                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 550                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   50},
 551                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 552                 { -1,                   -1,     -1,     -1},
 553         };
 554         struct em28xx_reg_seq terratec_htc_stick_end[] = {
 555                 {EM2874_R80_GPIO_P0_CTRL,       0xb6,   0xff,   100},
 556                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   50},
 557                 { -1,                   -1,     -1,     -1},
 558         };
 559
 560         /*
 561          * Init the analog decoder (not yet supported), but
 562          * it's probably still a good idea.
 563          */
 564         struct {
 565                 unsigned char r[4];
 566                 int len;
 567         } regs[] = {
 568                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 569                 {{ 0x01, 0x02 }, 2},
 570                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 571                 {{ 0x01, 0x00 }, 2},
 572                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 573         };
 574
 575         em28xx_gpio_set(dev, terratec_htc_stick_init);
 576
 577         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 578         msleep(10);
 579         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 580         msleep(10);
 581
 582         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 583
 584         for (i = 0; i < ARRAY_SIZE(regs); i++)
 585                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 586
 587         em28xx_gpio_set(dev, terratec_htc_stick_end);
 588 };
 589
 590 static void terratec_htc_usb_xs_init(struct em28xx *dev)
 591 {
 592         int i;
 593
 594         struct em28xx_reg_seq terratec_htc_usb_xs_init[] = {
 595                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 596                 {EM2874_R80_GPIO_P0_CTRL,       0xb2,   0xff,   100},
 597                 {EM2874_R80_GPIO_P0_CTRL,       0xb2,   0xff,   50},
 598                 {EM2874_R80_GPIO_P0_CTRL,       0xb6,   0xff,   100},
 599                 { -1,                   -1,     -1,     -1},
 600         };
 601         struct em28xx_reg_seq terratec_htc_usb_xs_end[] = {
 602                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   100},
 603                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   50},
 604                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 605                 { -1,                   -1,     -1,     -1},
 606         };
 607
 608         /*
 609          * Init the analog decoder (not yet supported), but
 610          * it's probably still a good idea.
 611          */
 612         struct {
 613                 unsigned char r[4];
 614                 int len;
 615         } regs[] = {
 616                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 617                 {{ 0x01, 0x02 }, 2},
 618                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 619                 {{ 0x01, 0x00 }, 2},
 620                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 621                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 622                 {{ 0x01, 0x00 }, 2},
 623                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 624                 {{ 0x04, 0x00 }, 2},
 625                 {{ 0x00, 0x04 }, 2},
 626                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 627                 {{ 0x04, 0x14 }, 2},
 628                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 629         };
 630
 631         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 632
 633         em28xx_gpio_set(dev, terratec_htc_usb_xs_init);
 634
 635         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 636         msleep(10);
 637         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 638         msleep(10);
 639
 640         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 641
 642         for (i = 0; i < ARRAY_SIZE(regs); i++)
 643                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 644
 645         em28xx_gpio_set(dev, terratec_htc_usb_xs_end);
 646 };
 647
 648 static void pctv_520e_init(struct em28xx *dev)
 649 {
 650         /*
 651          * Init AVF4910B analog decoder. Looks like I2C traffic to
 652          * digital demodulator and tuner are routed via AVF4910B.
 653          */
 654         int i;
 655         struct {
 656                 unsigned char r[4];
 657                 int len;
 658         } regs[] = {
 659                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 660                 {{ 0x01, 0x02 }, 2},
 661                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 662                 {{ 0x01, 0x00 }, 2},
 663                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 664                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 665                 {{ 0x01, 0x00 }, 2},
 666                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 667         };
 668
 669         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1; /* 0x41 */
 670
 671         for (i = 0; i < ARRAY_SIZE(regs); i++)
 672                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 673 };
 674
 675 static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe)
 676 {
 677         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 678         struct em28xx *dev = fe->dvb->priv;
 679 #ifdef CONFIG_GPIOLIB
 680         struct em28xx_dvb *dvb = dev->dvb;
 681         int ret;
 682         unsigned long flags;
 683
 684         if (c->lna == 1)
 685                 flags = GPIOF_OUT_INIT_HIGH; /* enable LNA */
 686         else
 687                 flags = GPIOF_OUT_INIT_LOW; /* disable LNA */
 688
 689         ret = gpio_request_one(dvb->lna_gpio, flags, NULL);
 690         if (ret)
 691                 em28xx_errdev("gpio request failed %d\n", ret);
 692         else
 693                 gpio_free(dvb->lna_gpio);
 694
 695         return ret;
 696 #else
 697         dev_warn(&dev->udev->dev, "%s: LNA control is disabled (lna=%u)\n",
 698                         KBUILD_MODNAME, c->lna);
 699         return 0;
 700 #endif
 701 }
 702
 703 static int em28xx_mt352_terratec_xs_init(struct dvb_frontend *fe)
 704 {
 705         /* Values extracted from a USB trace of the Terratec Windows driver */
 706         static u8 clock_config[]   = { CLOCK_CTL,  0x38, 0x2c };
 707         static u8 reset[]          = { RESET,      0x80 };
 708         static u8 adc_ctl_1_cfg[]  = { ADC_CTL_1,  0x40 };
 709         static u8 agc_cfg[]        = { AGC_TARGET, 0x28, 0xa0 };
 710         static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
 711         static u8 rs_err_cfg[]     = { RS_ERR_PER_1, 0x00, 0x4d };
 712         static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
 713         static u8 trl_nom_cfg[]    = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
 714         static u8 tps_given_cfg[]  = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
 715         static u8 tuner_go[]       = { TUNER_GO, 0x01};
 716
 717         mt352_write(fe, clock_config,   sizeof(clock_config));
 718         udelay(200);
 719         mt352_write(fe, reset,          sizeof(reset));
 720         mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));
 721         mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
 722         mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
 723         mt352_write(fe, rs_err_cfg,     sizeof(rs_err_cfg));
 724         mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
 725         mt352_write(fe, trl_nom_cfg,    sizeof(trl_nom_cfg));
 726         mt352_write(fe, tps_given_cfg,  sizeof(tps_given_cfg));
 727         mt352_write(fe, tuner_go,       sizeof(tuner_go));
 728         return 0;
 729 }
 730
 731 static struct mt352_config terratec_xs_mt352_cfg = {
 732         .demod_address = (0x1e >> 1),
 733         .no_tuner = 1,
 734         .if2 = 45600,
 735         .demod_init = em28xx_mt352_terratec_xs_init,
 736 };
 737
 738 static struct tda10023_config em28xx_tda10023_config = {
 739         .demod_address = 0x0c,
 740         .invert = 1,
 741 };
 742
 743 static struct cxd2820r_config em28xx_cxd2820r_config = {
 744         .i2c_address = (0xd8 >> 1),
 745         .ts_mode = CXD2820R_TS_SERIAL,
 746 };
 747
 748 static struct tda18271_config em28xx_cxd2820r_tda18271_config = {
 749         .output_opt = TDA18271_OUTPUT_LT_OFF,
 750         .gate = TDA18271_GATE_DIGITAL,
 751 };
 752
 753 static const struct tda10071_config em28xx_tda10071_config = {
 754         .demod_i2c_addr = 0x55, /* (0xaa >> 1) */
 755         .tuner_i2c_addr = 0x14,
 756         .i2c_wr_max = 64,
 757         .ts_mode = TDA10071_TS_SERIAL,
 758         .spec_inv = 0,
 759         .xtal = 40444000, /* 40.444 MHz */
 760         .pll_multiplier = 20,
 761 };
 762
 763 static const struct a8293_config em28xx_a8293_config = {
 764         .i2c_addr = 0x08, /* (0x10 >> 1) */
 765 };
 766
 767 static struct zl10353_config em28xx_zl10353_no_i2c_gate_dev = {
 768         .demod_address = (0x1e >> 1),
 769         .disable_i2c_gate_ctrl = 1,
 770         .no_tuner = 1,
 771         .parallel_ts = 1,
 772 };
 773 static struct qt1010_config em28xx_qt1010_config = {
 774         .i2c_address = 0x62
 775 };
 776
 777 static const struct mb86a20s_config c3tech_duo_mb86a20s_config = {
 778         .demod_address = 0x10,
 779         .is_serial = true,
 780 };
 781
 782 static struct tda18271_std_map mb86a20s_tda18271_config = {
 783         .dvbt_6   = { .if_freq = 4000, .agc_mode = 3, .std = 4,
 784                       .if_lvl = 1, .rfagc_top = 0x37, },
 785 };
 786
 787 static struct tda18271_config c3tech_duo_tda18271_config = {
 788         .std_map = &mb86a20s_tda18271_config,
 789         .gate    = TDA18271_GATE_DIGITAL,
 790         .small_i2c = TDA18271_03_BYTE_CHUNK_INIT,
 791 };
 792
 793
 794 /* ------------------------------------------------------------------ */
 795
 796 static int em28xx_attach_xc3028(u8 addr, struct em28xx *dev)
 797 {
 798         struct dvb_frontend *fe;
 799         struct xc2028_config cfg;
 800
 801         memset(&cfg, 0, sizeof(cfg));
 802         cfg.i2c_adap  = &dev->i2c_adap[dev->def_i2c_bus];
 803         cfg.i2c_addr  = addr;
 804
 805         if (!dev->dvb->fe[0]) {
 806                 em28xx_errdev("/2: dvb frontend not attached. "
 807                                 "Can't attach xc3028\n");
 808                 return -EINVAL;
 809         }
 810
 811         fe = dvb_attach(xc2028_attach, dev->dvb->fe[0], &cfg);
 812         if (!fe) {
 813                 em28xx_errdev("/2: xc3028 attach failed\n");
 814                 dvb_frontend_detach(dev->dvb->fe[0]);
 815                 dev->dvb->fe[0] = NULL;
 816                 return -EINVAL;
 817         }
 818
 819         em28xx_info("%s/2: xc3028 attached\n", dev->name);
 820
 821         return 0;
 822 }
 823
 824 /* ------------------------------------------------------------------ */
 825
 826 static int em28xx_register_dvb(struct em28xx_dvb *dvb, struct module *module,
 827                                struct em28xx *dev, struct device *device)
 828 {
 829         int result;
 830
 831         mutex_init(&dvb->lock);
 832
 833         /* register adapter */
 834         result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
 835                                       adapter_nr);
 836         if (result < 0) {
 837                 printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
 838                        dev->name, result);
 839                 goto fail_adapter;
 840         }
 841
 842         /* Ensure all frontends negotiate bus access */
 843         dvb->fe[0]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 844         if (dvb->fe[1])
 845                 dvb->fe[1]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 846
 847         dvb->adapter.priv = &dev->i2c_bus[dev->def_i2c_bus];
 848
 849         /* register frontend */
 850         result = dvb_register_frontend(&dvb->adapter, dvb->fe[0]);
 851         if (result < 0) {
 852                 printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
 853                        dev->name, result);
 854                 goto fail_frontend0;
 855         }
 856
 857         /* register 2nd frontend */
 858         if (dvb->fe[1]) {
 859                 result = dvb_register_frontend(&dvb->adapter, dvb->fe[1]);
 860                 if (result < 0) {
 861                         printk(KERN_WARNING "%s: 2nd dvb_register_frontend failed (errno = %d)\n",
 862                                 dev->name, result);
 863                         goto fail_frontend1;
 864                 }
 865         }
 866
 867         /* register demux stuff */
 868         dvb->demux.dmx.capabilities =
 869                 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 870                 DMX_MEMORY_BASED_FILTERING;
 871         dvb->demux.priv       = dvb;
 872         dvb->demux.filternum  = 256;
 873         dvb->demux.feednum    = 256;
 874         dvb->demux.start_feed = em28xx_start_feed;
 875         dvb->demux.stop_feed  = em28xx_stop_feed;
 876
 877         result = dvb_dmx_init(&dvb->demux);
 878         if (result < 0) {
 879                 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
 880                        dev->name, result);
 881                 goto fail_dmx;
 882         }
 883
 884         dvb->dmxdev.filternum    = 256;
 885         dvb->dmxdev.demux        = &dvb->demux.dmx;
 886         dvb->dmxdev.capabilities = 0;
 887         result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
 888         if (result < 0) {
 889                 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
 890                        dev->name, result);
 891                 goto fail_dmxdev;
 892         }
 893
 894         dvb->fe_hw.source = DMX_FRONTEND_0;
 895         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 896         if (result < 0) {
 897                 printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
 898                        dev->name, result);
 899                 goto fail_fe_hw;
 900         }
 901
 902         dvb->fe_mem.source = DMX_MEMORY_FE;
 903         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 904         if (result < 0) {
 905                 printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
 906                        dev->name, result);
 907                 goto fail_fe_mem;
 908         }
 909
 910         result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 911         if (result < 0) {
 912                 printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
 913                        dev->name, result);
 914                 goto fail_fe_conn;
 915         }
 916
 917         /* register network adapter */
 918         dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
 919         return 0;
 920
 921 fail_fe_conn:
 922         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 923 fail_fe_mem:
 924         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 925 fail_fe_hw:
 926         dvb_dmxdev_release(&dvb->dmxdev);
 927 fail_dmxdev:
 928         dvb_dmx_release(&dvb->demux);
 929 fail_dmx:
 930         if (dvb->fe[1])
 931                 dvb_unregister_frontend(dvb->fe[1]);
 932         dvb_unregister_frontend(dvb->fe[0]);
 933 fail_frontend1:
 934         if (dvb->fe[1])
 935                 dvb_frontend_detach(dvb->fe[1]);
 936 fail_frontend0:
 937         dvb_frontend_detach(dvb->fe[0]);
 938         dvb_unregister_adapter(&dvb->adapter);
 939 fail_adapter:
 940         return result;
 941 }
 942
 943 static void em28xx_unregister_dvb(struct em28xx_dvb *dvb)
 944 {
 945         dvb_net_release(&dvb->net);
 946         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 947         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 948         dvb_dmxdev_release(&dvb->dmxdev);
 949         dvb_dmx_release(&dvb->demux);
 950         if (dvb->fe[1])
 951                 dvb_unregister_frontend(dvb->fe[1]);
 952         dvb_unregister_frontend(dvb->fe[0]);
 953         if (dvb->fe[1] && !dvb->dont_attach_fe1)
 954                 dvb_frontend_detach(dvb->fe[1]);
 955         dvb_frontend_detach(dvb->fe[0]);
 956         dvb_unregister_adapter(&dvb->adapter);
 957 }
 958
 959 static int em28xx_dvb_init(struct em28xx *dev)
 960 {
 961         int result = 0, mfe_shared = 0;
 962         struct em28xx_dvb *dvb;
 963
 964         if (!dev->board.has_dvb) {
 965                 /* This device does not support the extension */
 966                 printk(KERN_INFO "em28xx_dvb: This device does not support the extension\n");
 967                 return 0;
 968         }
 969
 970         dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
 971
 972         if (dvb == NULL) {
 973                 em28xx_info("em28xx_dvb: memory allocation failed\n");
 974                 return -ENOMEM;
 975         }
 976         dev->dvb = dvb;
 977         dvb->fe[0] = dvb->fe[1] = NULL;
 978
 979         mutex_lock(&dev->lock);
 980         em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 981         /* init frontend */
 982         switch (dev->model) {
 983         case EM2874_BOARD_LEADERSHIP_ISDBT:
 984                 dvb->fe[0] = dvb_attach(s921_attach,
 985                                 &sharp_isdbt, &dev->i2c_adap[dev->def_i2c_bus]);
 986
 987                 if (!dvb->fe[0]) {
 988                         result = -EINVAL;
 989                         goto out_free;
 990                 }
 991
 992                 break;
 993         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
 994         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
 995         case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
 996         case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
 997                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
 998                                            &em2880_lgdt3303_dev,
 999                                            &dev->i2c_adap[dev->def_i2c_bus]);
1000                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1001                         result = -EINVAL;
1002                         goto out_free;
1003                 }
1004                 break;
1005         case EM2880_BOARD_KWORLD_DVB_310U:
1006                 dvb->fe[0] = dvb_attach(zl10353_attach,
1007                                            &em28xx_zl10353_with_xc3028,
1008                                            &dev->i2c_adap[dev->def_i2c_bus]);
1009                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1010                         result = -EINVAL;
1011                         goto out_free;
1012                 }
1013                 break;
1014         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
1015         case EM2882_BOARD_TERRATEC_HYBRID_XS:
1016         case EM2880_BOARD_EMPIRE_DUAL_TV:
1017                 dvb->fe[0] = dvb_attach(zl10353_attach,
1018                                            &em28xx_zl10353_xc3028_no_i2c_gate,
1019                                            &dev->i2c_adap[dev->def_i2c_bus]);
1020                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1021                         result = -EINVAL;
1022                         goto out_free;
1023                 }
1024                 break;
1025         case EM2880_BOARD_TERRATEC_HYBRID_XS:
1026         case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
1027         case EM2881_BOARD_PINNACLE_HYBRID_PRO:
1028         case EM2882_BOARD_DIKOM_DK300:
1029         case EM2882_BOARD_KWORLD_VS_DVBT:
1030                 dvb->fe[0] = dvb_attach(zl10353_attach,
1031                                            &em28xx_zl10353_xc3028_no_i2c_gate,
1032                                            &dev->i2c_adap[dev->def_i2c_bus]);
1033                 if (dvb->fe[0] == NULL) {
1034                         /* This board could have either a zl10353 or a mt352.
1035                            If the chip id isn't for zl10353, try mt352 */
1036                         dvb->fe[0] = dvb_attach(mt352_attach,
1037                                                    &terratec_xs_mt352_cfg,
1038                                                    &dev->i2c_adap[dev->def_i2c_bus]);
1039                 }
1040
1041                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1042                         result = -EINVAL;
1043                         goto out_free;
1044                 }
1045                 break;
1046         case EM2870_BOARD_KWORLD_355U:
1047                 dvb->fe[0] = dvb_attach(zl10353_attach,
1048                                            &em28xx_zl10353_no_i2c_gate_dev,
1049                                            &dev->i2c_adap[dev->def_i2c_bus]);
1050                 if (dvb->fe[0] != NULL)
1051                         dvb_attach(qt1010_attach, dvb->fe[0],
1052                                    &dev->i2c_adap[dev->def_i2c_bus], &em28xx_qt1010_config);
1053                 break;
1054         case EM2883_BOARD_KWORLD_HYBRID_330U:
1055         case EM2882_BOARD_EVGA_INDTUBE:
1056                 dvb->fe[0] = dvb_attach(s5h1409_attach,
1057                                            &em28xx_s5h1409_with_xc3028,
1058                                            &dev->i2c_adap[dev->def_i2c_bus]);
1059                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1060                         result = -EINVAL;
1061                         goto out_free;
1062                 }
1063                 break;
1064         case EM2882_BOARD_KWORLD_ATSC_315U:
1065                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
1066                                            &em2880_lgdt3303_dev,
1067                                            &dev->i2c_adap[dev->def_i2c_bus]);
1068                 if (dvb->fe[0] != NULL) {
1069                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1070                                 &dev->i2c_adap[dev->def_i2c_bus], 0x61, TUNER_THOMSON_DTT761X)) {
1071                                 result = -EINVAL;
1072                                 goto out_free;
1073                         }
1074                 }
1075                 break;
1076         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
1077         case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
1078                 dvb->fe[0] = dvb_attach(drxd_attach, &em28xx_drxd, NULL,
1079                                            &dev->i2c_adap[dev->def_i2c_bus], &dev->udev->dev);
1080                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1081                         result = -EINVAL;
1082                         goto out_free;
1083                 }
1084                 break;
1085         case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
1086                 /* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
1087                 dvb->fe[0] = dvb_attach(tda10023_attach,
1088                         &em28xx_tda10023_config,
1089                         &dev->i2c_adap[dev->def_i2c_bus], 0x48);
1090                 if (dvb->fe[0]) {
1091                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1092                                 &dev->i2c_adap[dev->def_i2c_bus], 0x60, TUNER_PHILIPS_CU1216L)) {
1093                                 result = -EINVAL;
1094                                 goto out_free;
1095                         }
1096                 }
1097                 break;
1098         case EM2870_BOARD_KWORLD_A340:
1099                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1100                                            &em2870_lgdt3304_dev,
1101                                            &dev->i2c_adap[dev->def_i2c_bus]);
1102                 if (dvb->fe[0] != NULL)
1103                         dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1104                                    &dev->i2c_adap[dev->def_i2c_bus], &kworld_a340_config);
1105                 break;
1106         case EM28174_BOARD_PCTV_290E:
1107                 /* set default GPIO0 for LNA, used if GPIOLIB is undefined */
1108                 dvb->lna_gpio = CXD2820R_GPIO_E | CXD2820R_GPIO_O |
1109                                 CXD2820R_GPIO_L;
1110                 dvb->fe[0] = dvb_attach(cxd2820r_attach,
1111                                         &em28xx_cxd2820r_config,
1112                                         &dev->i2c_adap[dev->def_i2c_bus],
1113                                         &dvb->lna_gpio);
1114                 if (dvb->fe[0]) {
1115                         /* FE 0 attach tuner */
1116                         if (!dvb_attach(tda18271_attach,
1117                                         dvb->fe[0],
1118                                         0x60,
1119                                         &dev->i2c_adap[dev->def_i2c_bus],
1120                                         &em28xx_cxd2820r_tda18271_config)) {
1121
1122                                 dvb_frontend_detach(dvb->fe[0]);
1123                                 result = -EINVAL;
1124                                 goto out_free;
1125                         }
1126
1127 #ifdef CONFIG_GPIOLIB
1128                         /* enable LNA for DVB-T, DVB-T2 and DVB-C */
1129                         result = gpio_request_one(dvb->lna_gpio,
1130                                         GPIOF_OUT_INIT_LOW, NULL);
1131                         if (result)
1132                                 em28xx_errdev("gpio request failed %d\n",
1133                                                 result);
1134                         else
1135                                 gpio_free(dvb->lna_gpio);
1136
1137                         result = 0; /* continue even set LNA fails */
1138 #endif
1139                         dvb->fe[0]->ops.set_lna = em28xx_pctv_290e_set_lna;
1140                 }
1141
1142                 break;
1143         case EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C:
1144         {
1145                 struct xc5000_config cfg;
1146                 hauppauge_hvr930c_init(dev);
1147
1148                 dvb->fe[0] = dvb_attach(drxk_attach,
1149                                         &hauppauge_930c_drxk, &dev->i2c_adap[dev->def_i2c_bus]);
1150                 if (!dvb->fe[0]) {
1151                         result = -EINVAL;
1152                         goto out_free;
1153                 }
1154                 /* FIXME: do we need a pll semaphore? */
1155                 dvb->fe[0]->sec_priv = dvb;
1156                 sema_init(&dvb->pll_mutex, 1);
1157                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1158                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1159
1160                 /* Attach xc5000 */
1161                 memset(&cfg, 0, sizeof(cfg));
1162                 cfg.i2c_address  = 0x61;
1163                 cfg.if_khz = 4000;
1164
1165                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1166                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1167                 if (!dvb_attach(xc5000_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus],
1168                                 &cfg)) {
1169                         result = -EINVAL;
1170                         goto out_free;
1171                 }
1172                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1173                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1174
1175                 break;
1176         }
1177         case EM2884_BOARD_TERRATEC_H5:
1178                 terratec_h5_init(dev);
1179
1180                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_h5_drxk, &dev->i2c_adap[dev->def_i2c_bus]);
1181                 if (!dvb->fe[0]) {
1182                         result = -EINVAL;
1183                         goto out_free;
1184                 }
1185                 /* FIXME: do we need a pll semaphore? */
1186                 dvb->fe[0]->sec_priv = dvb;
1187                 sema_init(&dvb->pll_mutex, 1);
1188                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1189                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1190
1191                 /* Attach tda18271 to DVB-C frontend */
1192                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1193                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1194                 if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus], 0x60)) {
1195                         result = -EINVAL;
1196                         goto out_free;
1197                 }
1198                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1199                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1200
1201                 break;
1202         case EM2884_BOARD_C3TECH_DIGITAL_DUO:
1203                 dvb->fe[0] = dvb_attach(mb86a20s_attach,
1204                                            &c3tech_duo_mb86a20s_config,
1205                                            &dev->i2c_adap[dev->def_i2c_bus]);
1206                 if (dvb->fe[0] != NULL)
1207                         dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1208                                    &dev->i2c_adap[dev->def_i2c_bus],
1209                                    &c3tech_duo_tda18271_config);
1210                 break;
1211         case EM28174_BOARD_PCTV_460E:
1212                 /* attach demod */
1213                 dvb->fe[0] = dvb_attach(tda10071_attach,
1214                         &em28xx_tda10071_config, &dev->i2c_adap[dev->def_i2c_bus]);
1215
1216                 /* attach SEC */
1217                 if (dvb->fe[0])
1218                         dvb_attach(a8293_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus],
1219                                 &em28xx_a8293_config);
1220                 break;
1221         case EM2874_BOARD_DELOCK_61959:
1222         case EM2874_BOARD_MAXMEDIA_UB425_TC:
1223                 /* attach demodulator */
1224                 dvb->fe[0] = dvb_attach(drxk_attach, &maxmedia_ub425_tc_drxk,
1225                                 &dev->i2c_adap[dev->def_i2c_bus]);
1226
1227                 if (dvb->fe[0]) {
1228                         /* disable I2C-gate */
1229                         dvb->fe[0]->ops.i2c_gate_ctrl = NULL;
1230
1231                         /* attach tuner */
1232                         if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0],
1233                                         &dev->i2c_adap[dev->def_i2c_bus], 0x60)) {
1234                                 dvb_frontend_detach(dvb->fe[0]);
1235                                 result = -EINVAL;
1236                                 goto out_free;
1237                         }
1238                 }
1239                 break;
1240         case EM2884_BOARD_PCTV_510E:
1241         case EM2884_BOARD_PCTV_520E:
1242                 pctv_520e_init(dev);
1243
1244                 /* attach demodulator */
1245                 dvb->fe[0] = dvb_attach(drxk_attach, &pctv_520e_drxk,
1246                                 &dev->i2c_adap[dev->def_i2c_bus]);
1247
1248                 if (dvb->fe[0]) {
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_CINERGY_HTC_STICK:
1260                 terratec_htc_stick_init(dev);
1261
1262                 /* attach demodulator */
1263                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1264                                         &dev->i2c_adap[dev->def_i2c_bus]);
1265                 if (!dvb->fe[0]) {
1266                         result = -EINVAL;
1267                         goto out_free;
1268                 }
1269
1270                 /* Attach the demodulator. */
1271                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1272                                 &dev->i2c_adap[dev->def_i2c_bus],
1273                                 &em28xx_cxd2820r_tda18271_config)) {
1274                         result = -EINVAL;
1275                         goto out_free;
1276                 }
1277                 break;
1278         case EM2884_BOARD_TERRATEC_HTC_USB_XS:
1279                 terratec_htc_usb_xs_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         default:
1298                 em28xx_errdev("/2: The frontend of your DVB/ATSC card"
1299                                 " isn't supported yet\n");
1300                 break;
1301         }
1302         if (NULL == dvb->fe[0]) {
1303                 em28xx_errdev("/2: frontend initialization failed\n");
1304                 result = -EINVAL;
1305                 goto out_free;
1306         }
1307         /* define general-purpose callback pointer */
1308         dvb->fe[0]->callback = em28xx_tuner_callback;
1309         if (dvb->fe[1])
1310                 dvb->fe[1]->callback = em28xx_tuner_callback;
1311
1312         /* register everything */
1313         result = em28xx_register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
1314
1315         if (result < 0)
1316                 goto out_free;
1317
1318         /* MFE lock */
1319         dvb->adapter.mfe_shared = mfe_shared;
1320
1321         em28xx_info("Successfully loaded em28xx-dvb\n");
1322 ret:
1323         em28xx_set_mode(dev, EM28XX_SUSPEND);
1324         mutex_unlock(&dev->lock);
1325         return result;
1326
1327 out_free:
1328         kfree(dvb);
1329         dev->dvb = NULL;
1330         goto ret;
1331 }
1332
1333 static inline void prevent_sleep(struct dvb_frontend_ops *ops)
1334 {
1335         ops->set_voltage = NULL;
1336         ops->sleep = NULL;
1337         ops->tuner_ops.sleep = NULL;
1338 }
1339
1340 static int em28xx_dvb_fini(struct em28xx *dev)
1341 {
1342         if (!dev->board.has_dvb) {
1343                 /* This device does not support the extension */
1344                 return 0;
1345         }
1346
1347         if (dev->dvb) {
1348                 struct em28xx_dvb *dvb = dev->dvb;
1349
1350                 if (dev->disconnected) {
1351                         /* We cannot tell the device to sleep
1352                          * once it has been unplugged. */
1353                         if (dvb->fe[0])
1354                                 prevent_sleep(&dvb->fe[0]->ops);
1355                         if (dvb->fe[1])
1356                                 prevent_sleep(&dvb->fe[1]->ops);
1357                 }
1358
1359                 em28xx_unregister_dvb(dvb);
1360                 kfree(dvb);
1361                 dev->dvb = NULL;
1362         }
1363
1364         return 0;
1365 }
1366
1367 static struct em28xx_ops dvb_ops = {
1368         .id   = EM28XX_DVB,
1369         .name = "Em28xx dvb Extension",
1370         .init = em28xx_dvb_init,
1371         .fini = em28xx_dvb_fini,
1372 };
1373
1374 static int __init em28xx_dvb_register(void)
1375 {
1376         return em28xx_register_extension(&dvb_ops);
1377 }
1378
1379 static void __exit em28xx_dvb_unregister(void)
1380 {
1381         em28xx_unregister_extension(&dvb_ops);
1382 }
1383
1384 module_init(em28xx_dvb_register);
1385 module_exit(em28xx_dvb_unregister);