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         .qam_demod_parameter_count = 2,
 391 };
 392
 393 static struct drxk_config pctv_520e_drxk = {
 394         .adr = 0x29,
 395         .single_master = 1,
 396         .microcode_name = "dvb-demod-drxk-pctv.fw",
 397         .qam_demod_parameter_count = 2,
 398         .chunk_size = 58,
 399         .antenna_dvbt = true, /* disable LNA */
 400         .antenna_gpio = (1 << 2), /* disable LNA */
 401         .load_firmware_sync = true,
 402 };
 403
 404 static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
 405 {
 406         struct em28xx_dvb *dvb = fe->sec_priv;
 407         int status;
 408
 409         if (!dvb)
 410                 return -EINVAL;
 411
 412         if (enable) {
 413                 down(&dvb->pll_mutex);
 414                 status = dvb->gate_ctrl(fe, 1);
 415         } else {
 416                 status = dvb->gate_ctrl(fe, 0);
 417                 up(&dvb->pll_mutex);
 418         }
 419         return status;
 420 }
 421
 422 static void hauppauge_hvr930c_init(struct em28xx *dev)
 423 {
 424         int i;
 425
 426         struct em28xx_reg_seq hauppauge_hvr930c_init[] = {
 427                 {EM2874_R80_GPIO_P0_CTRL,       0xff,   0xff,   0x65},
 428                 {EM2874_R80_GPIO_P0_CTRL,       0xfb,   0xff,   0x32},
 429                 {EM2874_R80_GPIO_P0_CTRL,       0xff,   0xff,   0xb8},
 430                 {       -1,                     -1,     -1,     -1},
 431         };
 432         struct em28xx_reg_seq hauppauge_hvr930c_end[] = {
 433                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x01},
 434                 {EM2874_R80_GPIO_P0_CTRL,       0xaf,   0xff,   0x65},
 435                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x76},
 436                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x01},
 437                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x0b},
 438                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x40},
 439
 440                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x65},
 441                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x65},
 442                 {EM2874_R80_GPIO_P0_CTRL,       0xcf,   0xff,   0x0b},
 443                 {EM2874_R80_GPIO_P0_CTRL,       0xef,   0xff,   0x65},
 444
 445                 {       -1,                     -1,     -1,     -1},
 446         };
 447
 448         struct {
 449                 unsigned char r[4];
 450                 int len;
 451         } regs[] = {
 452                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 453                 {{ 0x01, 0x02 }, 2},
 454                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 455                 {{ 0x01, 0x00 }, 2},
 456                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 457                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 458                 {{ 0x01, 0x00 }, 2},
 459                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 460                 {{ 0x04, 0x00 }, 2},
 461                 {{ 0x00, 0x04 }, 2},
 462                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 463                 {{ 0x04, 0x14 }, 2},
 464                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 465         };
 466
 467         em28xx_gpio_set(dev, hauppauge_hvr930c_init);
 468         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 469         msleep(10);
 470         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 471         msleep(10);
 472
 473         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 474
 475         for (i = 0; i < ARRAY_SIZE(regs); i++)
 476                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 477         em28xx_gpio_set(dev, hauppauge_hvr930c_end);
 478
 479         msleep(100);
 480
 481         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 482         msleep(30);
 483
 484         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 485         msleep(10);
 486
 487 }
 488
 489 static void terratec_h5_init(struct em28xx *dev)
 490 {
 491         int i;
 492         struct em28xx_reg_seq terratec_h5_init[] = {
 493                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 494                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 495                 {EM2874_R80_GPIO_P0_CTRL,       0xf2,   0xff,   50},
 496                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 497                 {       -1,                     -1,     -1,     -1},
 498         };
 499         struct em28xx_reg_seq terratec_h5_end[] = {
 500                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 501                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   50},
 502                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 503                 {       -1,                     -1,     -1,     -1},
 504         };
 505         struct {
 506                 unsigned char r[4];
 507                 int len;
 508         } regs[] = {
 509                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 510                 {{ 0x01, 0x02 }, 2},
 511                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 512                 {{ 0x01, 0x00 }, 2},
 513                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 514                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 515                 {{ 0x01, 0x00 }, 2},
 516                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 517                 {{ 0x04, 0x00 }, 2},
 518                 {{ 0x00, 0x04 }, 2},
 519                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 520                 {{ 0x04, 0x14 }, 2},
 521                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 522         };
 523
 524         em28xx_gpio_set(dev, terratec_h5_init);
 525         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 526         msleep(10);
 527         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 528         msleep(10);
 529
 530         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 531
 532         for (i = 0; i < ARRAY_SIZE(regs); i++)
 533                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 534         em28xx_gpio_set(dev, terratec_h5_end);
 535 };
 536
 537 static void terratec_htc_stick_init(struct em28xx *dev)
 538 {
 539         int i;
 540
 541         /*
 542          * GPIO configuration:
 543          * 0xff: unknown (does not affect DVB-T).
 544          * 0xf6: DRX-K (demodulator).
 545          * 0xe6: unknown (does not affect DVB-T).
 546          * 0xb6: unknown (does not affect DVB-T).
 547          */
 548         struct em28xx_reg_seq terratec_htc_stick_init[] = {
 549                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 550                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 551                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   50},
 552                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   100},
 553                 {       -1,                     -1,     -1,     -1},
 554         };
 555         struct em28xx_reg_seq terratec_htc_stick_end[] = {
 556                 {EM2874_R80_GPIO_P0_CTRL,       0xb6,   0xff,   100},
 557                 {EM2874_R80_GPIO_P0_CTRL,       0xf6,   0xff,   50},
 558                 {       -1,                     -1,     -1,     -1},
 559         };
 560
 561         /*
 562          * Init the analog decoder (not yet supported), but
 563          * it's probably still a good idea.
 564          */
 565         struct {
 566                 unsigned char r[4];
 567                 int len;
 568         } regs[] = {
 569                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 570                 {{ 0x01, 0x02 }, 2},
 571                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 572                 {{ 0x01, 0x00 }, 2},
 573                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 574         };
 575
 576         em28xx_gpio_set(dev, terratec_htc_stick_init);
 577
 578         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 579         msleep(10);
 580         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 581         msleep(10);
 582
 583         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 584
 585         for (i = 0; i < ARRAY_SIZE(regs); i++)
 586                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 587
 588         em28xx_gpio_set(dev, terratec_htc_stick_end);
 589 };
 590
 591 static void terratec_htc_usb_xs_init(struct em28xx *dev)
 592 {
 593         int i;
 594
 595         struct em28xx_reg_seq terratec_htc_usb_xs_init[] = {
 596                 {EM2820_R08_GPIO_CTRL,          0xff,   0xff,   10},
 597                 {EM2874_R80_GPIO_P0_CTRL,       0xb2,   0xff,   100},
 598                 {EM2874_R80_GPIO_P0_CTRL,       0xb2,   0xff,   50},
 599                 {EM2874_R80_GPIO_P0_CTRL,       0xb6,   0xff,   100},
 600                 {       -1,                     -1,     -1,     -1},
 601         };
 602         struct em28xx_reg_seq terratec_htc_usb_xs_end[] = {
 603                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   100},
 604                 {EM2874_R80_GPIO_P0_CTRL,       0xa6,   0xff,   50},
 605                 {EM2874_R80_GPIO_P0_CTRL,       0xe6,   0xff,   100},
 606                 {       -1,                     -1,     -1,     -1},
 607         };
 608
 609         /*
 610          * Init the analog decoder (not yet supported), but
 611          * it's probably still a good idea.
 612          */
 613         struct {
 614                 unsigned char r[4];
 615                 int len;
 616         } regs[] = {
 617                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 618                 {{ 0x01, 0x02 }, 2},
 619                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 620                 {{ 0x01, 0x00 }, 2},
 621                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 622                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 623                 {{ 0x01, 0x00 }, 2},
 624                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 625                 {{ 0x04, 0x00 }, 2},
 626                 {{ 0x00, 0x04 }, 2},
 627                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 628                 {{ 0x04, 0x14 }, 2},
 629                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 630         };
 631
 632         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 633
 634         em28xx_gpio_set(dev, terratec_htc_usb_xs_init);
 635
 636         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 637         msleep(10);
 638         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 639         msleep(10);
 640
 641         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1;
 642
 643         for (i = 0; i < ARRAY_SIZE(regs); i++)
 644                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 645
 646         em28xx_gpio_set(dev, terratec_htc_usb_xs_end);
 647 };
 648
 649 static void pctv_520e_init(struct em28xx *dev)
 650 {
 651         /*
 652          * Init AVF4910B analog decoder. Looks like I2C traffic to
 653          * digital demodulator and tuner are routed via AVF4910B.
 654          */
 655         int i;
 656         struct {
 657                 unsigned char r[4];
 658                 int len;
 659         } regs[] = {
 660                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 661                 {{ 0x01, 0x02 }, 2},
 662                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 663                 {{ 0x01, 0x00 }, 2},
 664                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 665                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 666                 {{ 0x01, 0x00 }, 2},
 667                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 668         };
 669
 670         dev->i2c_client[dev->def_i2c_bus].addr = 0x82 >> 1; /* 0x41 */
 671
 672         for (i = 0; i < ARRAY_SIZE(regs); i++)
 673                 i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], regs[i].r, regs[i].len);
 674 };
 675
 676 static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe)
 677 {
 678         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 679         struct em28xx *dev = fe->dvb->priv;
 680 #ifdef CONFIG_GPIOLIB
 681         struct em28xx_dvb *dvb = dev->dvb;
 682         int ret;
 683         unsigned long flags;
 684
 685         if (c->lna == 1)
 686                 flags = GPIOF_OUT_INIT_HIGH; /* enable LNA */
 687         else
 688                 flags = GPIOF_OUT_INIT_LOW; /* disable LNA */
 689
 690         ret = gpio_request_one(dvb->lna_gpio, flags, NULL);
 691         if (ret)
 692                 em28xx_errdev("gpio request failed %d\n", ret);
 693         else
 694                 gpio_free(dvb->lna_gpio);
 695
 696         return ret;
 697 #else
 698         dev_warn(&dev->udev->dev, "%s: LNA control is disabled (lna=%u)\n",
 699                         KBUILD_MODNAME, c->lna);
 700         return 0;
 701 #endif
 702 }
 703
 704 static int em28xx_mt352_terratec_xs_init(struct dvb_frontend *fe)
 705 {
 706         /* Values extracted from a USB trace of the Terratec Windows driver */
 707         static u8 clock_config[]   = { CLOCK_CTL,  0x38, 0x2c };
 708         static u8 reset[]          = { RESET,      0x80 };
 709         static u8 adc_ctl_1_cfg[]  = { ADC_CTL_1,  0x40 };
 710         static u8 agc_cfg[]        = { AGC_TARGET, 0x28, 0xa0 };
 711         static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
 712         static u8 rs_err_cfg[]     = { RS_ERR_PER_1, 0x00, 0x4d };
 713         static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
 714         static u8 trl_nom_cfg[]    = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
 715         static u8 tps_given_cfg[]  = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
 716         static u8 tuner_go[]       = { TUNER_GO, 0x01};
 717
 718         mt352_write(fe, clock_config,   sizeof(clock_config));
 719         udelay(200);
 720         mt352_write(fe, reset,          sizeof(reset));
 721         mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));
 722         mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
 723         mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
 724         mt352_write(fe, rs_err_cfg,     sizeof(rs_err_cfg));
 725         mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
 726         mt352_write(fe, trl_nom_cfg,    sizeof(trl_nom_cfg));
 727         mt352_write(fe, tps_given_cfg,  sizeof(tps_given_cfg));
 728         mt352_write(fe, tuner_go,       sizeof(tuner_go));
 729         return 0;
 730 }
 731
 732 static struct mt352_config terratec_xs_mt352_cfg = {
 733         .demod_address = (0x1e >> 1),
 734         .no_tuner = 1,
 735         .if2 = 45600,
 736         .demod_init = em28xx_mt352_terratec_xs_init,
 737 };
 738
 739 static struct tda10023_config em28xx_tda10023_config = {
 740         .demod_address = 0x0c,
 741         .invert = 1,
 742 };
 743
 744 static struct cxd2820r_config em28xx_cxd2820r_config = {
 745         .i2c_address = (0xd8 >> 1),
 746         .ts_mode = CXD2820R_TS_SERIAL,
 747 };
 748
 749 static struct tda18271_config em28xx_cxd2820r_tda18271_config = {
 750         .output_opt = TDA18271_OUTPUT_LT_OFF,
 751         .gate = TDA18271_GATE_DIGITAL,
 752 };
 753
 754 static const struct tda10071_config em28xx_tda10071_config = {
 755         .demod_i2c_addr = 0x55, /* (0xaa >> 1) */
 756         .tuner_i2c_addr = 0x14,
 757         .i2c_wr_max = 64,
 758         .ts_mode = TDA10071_TS_SERIAL,
 759         .spec_inv = 0,
 760         .xtal = 40444000, /* 40.444 MHz */
 761         .pll_multiplier = 20,
 762 };
 763
 764 static const struct a8293_config em28xx_a8293_config = {
 765         .i2c_addr = 0x08, /* (0x10 >> 1) */
 766 };
 767
 768 static struct zl10353_config em28xx_zl10353_no_i2c_gate_dev = {
 769         .demod_address = (0x1e >> 1),
 770         .disable_i2c_gate_ctrl = 1,
 771         .no_tuner = 1,
 772         .parallel_ts = 1,
 773 };
 774 static struct qt1010_config em28xx_qt1010_config = {
 775         .i2c_address = 0x62
 776 };
 777
 778 static const struct mb86a20s_config c3tech_duo_mb86a20s_config = {
 779         .demod_address = 0x10,
 780         .is_serial = true,
 781 };
 782
 783 static struct tda18271_std_map mb86a20s_tda18271_config = {
 784         .dvbt_6   = { .if_freq = 4000, .agc_mode = 3, .std = 4,
 785                       .if_lvl = 1, .rfagc_top = 0x37, },
 786 };
 787
 788 static struct tda18271_config c3tech_duo_tda18271_config = {
 789         .std_map = &mb86a20s_tda18271_config,
 790         .gate    = TDA18271_GATE_DIGITAL,
 791         .small_i2c = TDA18271_03_BYTE_CHUNK_INIT,
 792 };
 793
 794
 795 /* ------------------------------------------------------------------ */
 796
 797 static int em28xx_attach_xc3028(u8 addr, struct em28xx *dev)
 798 {
 799         struct dvb_frontend *fe;
 800         struct xc2028_config cfg;
 801
 802         memset(&cfg, 0, sizeof(cfg));
 803         cfg.i2c_adap  = &dev->i2c_adap[dev->def_i2c_bus];
 804         cfg.i2c_addr  = addr;
 805
 806         if (!dev->dvb->fe[0]) {
 807                 em28xx_errdev("/2: dvb frontend not attached. "
 808                                 "Can't attach xc3028\n");
 809                 return -EINVAL;
 810         }
 811
 812         fe = dvb_attach(xc2028_attach, dev->dvb->fe[0], &cfg);
 813         if (!fe) {
 814                 em28xx_errdev("/2: xc3028 attach failed\n");
 815                 dvb_frontend_detach(dev->dvb->fe[0]);
 816                 dev->dvb->fe[0] = NULL;
 817                 return -EINVAL;
 818         }
 819
 820         em28xx_info("%s/2: xc3028 attached\n", dev->name);
 821
 822         return 0;
 823 }
 824
 825 /* ------------------------------------------------------------------ */
 826
 827 static int em28xx_register_dvb(struct em28xx_dvb *dvb, struct module *module,
 828                                struct em28xx *dev, struct device *device)
 829 {
 830         int result;
 831
 832         mutex_init(&dvb->lock);
 833
 834         /* register adapter */
 835         result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
 836                                       adapter_nr);
 837         if (result < 0) {
 838                 printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
 839                        dev->name, result);
 840                 goto fail_adapter;
 841         }
 842
 843         /* Ensure all frontends negotiate bus access */
 844         dvb->fe[0]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 845         if (dvb->fe[1])
 846                 dvb->fe[1]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 847
 848         dvb->adapter.priv = &dev->i2c_bus[dev->def_i2c_bus];
 849
 850         /* register frontend */
 851         result = dvb_register_frontend(&dvb->adapter, dvb->fe[0]);
 852         if (result < 0) {
 853                 printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
 854                        dev->name, result);
 855                 goto fail_frontend0;
 856         }
 857
 858         /* register 2nd frontend */
 859         if (dvb->fe[1]) {
 860                 result = dvb_register_frontend(&dvb->adapter, dvb->fe[1]);
 861                 if (result < 0) {
 862                         printk(KERN_WARNING "%s: 2nd dvb_register_frontend failed (errno = %d)\n",
 863                                 dev->name, result);
 864                         goto fail_frontend1;
 865                 }
 866         }
 867
 868         /* register demux stuff */
 869         dvb->demux.dmx.capabilities =
 870                 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 871                 DMX_MEMORY_BASED_FILTERING;
 872         dvb->demux.priv       = dvb;
 873         dvb->demux.filternum  = 256;
 874         dvb->demux.feednum    = 256;
 875         dvb->demux.start_feed = em28xx_start_feed;
 876         dvb->demux.stop_feed  = em28xx_stop_feed;
 877
 878         result = dvb_dmx_init(&dvb->demux);
 879         if (result < 0) {
 880                 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
 881                        dev->name, result);
 882                 goto fail_dmx;
 883         }
 884
 885         dvb->dmxdev.filternum    = 256;
 886         dvb->dmxdev.demux        = &dvb->demux.dmx;
 887         dvb->dmxdev.capabilities = 0;
 888         result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
 889         if (result < 0) {
 890                 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
 891                        dev->name, result);
 892                 goto fail_dmxdev;
 893         }
 894
 895         dvb->fe_hw.source = DMX_FRONTEND_0;
 896         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 897         if (result < 0) {
 898                 printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
 899                        dev->name, result);
 900                 goto fail_fe_hw;
 901         }
 902
 903         dvb->fe_mem.source = DMX_MEMORY_FE;
 904         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 905         if (result < 0) {
 906                 printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
 907                        dev->name, result);
 908                 goto fail_fe_mem;
 909         }
 910
 911         result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 912         if (result < 0) {
 913                 printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
 914                        dev->name, result);
 915                 goto fail_fe_conn;
 916         }
 917
 918         /* register network adapter */
 919         dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
 920         return 0;
 921
 922 fail_fe_conn:
 923         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 924 fail_fe_mem:
 925         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 926 fail_fe_hw:
 927         dvb_dmxdev_release(&dvb->dmxdev);
 928 fail_dmxdev:
 929         dvb_dmx_release(&dvb->demux);
 930 fail_dmx:
 931         if (dvb->fe[1])
 932                 dvb_unregister_frontend(dvb->fe[1]);
 933         dvb_unregister_frontend(dvb->fe[0]);
 934 fail_frontend1:
 935         if (dvb->fe[1])
 936                 dvb_frontend_detach(dvb->fe[1]);
 937 fail_frontend0:
 938         dvb_frontend_detach(dvb->fe[0]);
 939         dvb_unregister_adapter(&dvb->adapter);
 940 fail_adapter:
 941         return result;
 942 }
 943
 944 static void em28xx_unregister_dvb(struct em28xx_dvb *dvb)
 945 {
 946         dvb_net_release(&dvb->net);
 947         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 948         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 949         dvb_dmxdev_release(&dvb->dmxdev);
 950         dvb_dmx_release(&dvb->demux);
 951         if (dvb->fe[1])
 952                 dvb_unregister_frontend(dvb->fe[1]);
 953         dvb_unregister_frontend(dvb->fe[0]);
 954         if (dvb->fe[1] && !dvb->dont_attach_fe1)
 955                 dvb_frontend_detach(dvb->fe[1]);
 956         dvb_frontend_detach(dvb->fe[0]);
 957         dvb_unregister_adapter(&dvb->adapter);
 958 }
 959
 960 static int em28xx_dvb_init(struct em28xx *dev)
 961 {
 962         int result = 0, mfe_shared = 0;
 963         struct em28xx_dvb *dvb;
 964
 965         if (!dev->board.has_dvb) {
 966                 /* This device does not support the extension */
 967                 printk(KERN_INFO "em28xx_dvb: This device does not support the extension\n");
 968                 return 0;
 969         }
 970
 971         dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
 972
 973         if (dvb == NULL) {
 974                 em28xx_info("em28xx_dvb: memory allocation failed\n");
 975                 return -ENOMEM;
 976         }
 977         dev->dvb = dvb;
 978         dvb->fe[0] = dvb->fe[1] = NULL;
 979
 980         mutex_lock(&dev->lock);
 981         em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 982         /* init frontend */
 983         switch (dev->model) {
 984         case EM2874_BOARD_LEADERSHIP_ISDBT:
 985                 dvb->fe[0] = dvb_attach(s921_attach,
 986                                 &sharp_isdbt, &dev->i2c_adap[dev->def_i2c_bus]);
 987
 988                 if (!dvb->fe[0]) {
 989                         result = -EINVAL;
 990                         goto out_free;
 991                 }
 992
 993                 break;
 994         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
 995         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
 996         case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
 997         case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
 998                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
 999                                            &em2880_lgdt3303_dev,
1000                                            &dev->i2c_adap[dev->def_i2c_bus]);
1001                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1002                         result = -EINVAL;
1003                         goto out_free;
1004                 }
1005                 break;
1006         case EM2880_BOARD_KWORLD_DVB_310U:
1007                 dvb->fe[0] = dvb_attach(zl10353_attach,
1008                                            &em28xx_zl10353_with_xc3028,
1009                                            &dev->i2c_adap[dev->def_i2c_bus]);
1010                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1011                         result = -EINVAL;
1012                         goto out_free;
1013                 }
1014                 break;
1015         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
1016         case EM2882_BOARD_TERRATEC_HYBRID_XS:
1017         case EM2880_BOARD_EMPIRE_DUAL_TV:
1018                 dvb->fe[0] = dvb_attach(zl10353_attach,
1019                                            &em28xx_zl10353_xc3028_no_i2c_gate,
1020                                            &dev->i2c_adap[dev->def_i2c_bus]);
1021                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1022                         result = -EINVAL;
1023                         goto out_free;
1024                 }
1025                 break;
1026         case EM2880_BOARD_TERRATEC_HYBRID_XS:
1027         case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
1028         case EM2881_BOARD_PINNACLE_HYBRID_PRO:
1029         case EM2882_BOARD_DIKOM_DK300:
1030         case EM2882_BOARD_KWORLD_VS_DVBT:
1031                 dvb->fe[0] = dvb_attach(zl10353_attach,
1032                                            &em28xx_zl10353_xc3028_no_i2c_gate,
1033                                            &dev->i2c_adap[dev->def_i2c_bus]);
1034                 if (dvb->fe[0] == NULL) {
1035                         /* This board could have either a zl10353 or a mt352.
1036                            If the chip id isn't for zl10353, try mt352 */
1037                         dvb->fe[0] = dvb_attach(mt352_attach,
1038                                                    &terratec_xs_mt352_cfg,
1039                                                    &dev->i2c_adap[dev->def_i2c_bus]);
1040                 }
1041
1042                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1043                         result = -EINVAL;
1044                         goto out_free;
1045                 }
1046                 break;
1047         case EM2870_BOARD_KWORLD_355U:
1048                 dvb->fe[0] = dvb_attach(zl10353_attach,
1049                                            &em28xx_zl10353_no_i2c_gate_dev,
1050                                            &dev->i2c_adap[dev->def_i2c_bus]);
1051                 if (dvb->fe[0] != NULL)
1052                         dvb_attach(qt1010_attach, dvb->fe[0],
1053                                    &dev->i2c_adap[dev->def_i2c_bus], &em28xx_qt1010_config);
1054                 break;
1055         case EM2883_BOARD_KWORLD_HYBRID_330U:
1056         case EM2882_BOARD_EVGA_INDTUBE:
1057                 dvb->fe[0] = dvb_attach(s5h1409_attach,
1058                                            &em28xx_s5h1409_with_xc3028,
1059                                            &dev->i2c_adap[dev->def_i2c_bus]);
1060                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1061                         result = -EINVAL;
1062                         goto out_free;
1063                 }
1064                 break;
1065         case EM2882_BOARD_KWORLD_ATSC_315U:
1066                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
1067                                            &em2880_lgdt3303_dev,
1068                                            &dev->i2c_adap[dev->def_i2c_bus]);
1069                 if (dvb->fe[0] != NULL) {
1070                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1071                                 &dev->i2c_adap[dev->def_i2c_bus], 0x61, TUNER_THOMSON_DTT761X)) {
1072                                 result = -EINVAL;
1073                                 goto out_free;
1074                         }
1075                 }
1076                 break;
1077         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
1078         case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
1079                 dvb->fe[0] = dvb_attach(drxd_attach, &em28xx_drxd, NULL,
1080                                            &dev->i2c_adap[dev->def_i2c_bus], &dev->udev->dev);
1081                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
1082                         result = -EINVAL;
1083                         goto out_free;
1084                 }
1085                 break;
1086         case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
1087                 /* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
1088                 dvb->fe[0] = dvb_attach(tda10023_attach,
1089                         &em28xx_tda10023_config,
1090                         &dev->i2c_adap[dev->def_i2c_bus], 0x48);
1091                 if (dvb->fe[0]) {
1092                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
1093                                 &dev->i2c_adap[dev->def_i2c_bus], 0x60, TUNER_PHILIPS_CU1216L)) {
1094                                 result = -EINVAL;
1095                                 goto out_free;
1096                         }
1097                 }
1098                 break;
1099         case EM2870_BOARD_KWORLD_A340:
1100                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
1101                                            &em2870_lgdt3304_dev,
1102                                            &dev->i2c_adap[dev->def_i2c_bus]);
1103                 if (dvb->fe[0] != NULL)
1104                         dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1105                                    &dev->i2c_adap[dev->def_i2c_bus], &kworld_a340_config);
1106                 break;
1107         case EM28174_BOARD_PCTV_290E:
1108                 /* set default GPIO0 for LNA, used if GPIOLIB is undefined */
1109                 dvb->lna_gpio = CXD2820R_GPIO_E | CXD2820R_GPIO_O |
1110                                 CXD2820R_GPIO_L;
1111                 dvb->fe[0] = dvb_attach(cxd2820r_attach,
1112                                         &em28xx_cxd2820r_config,
1113                                         &dev->i2c_adap[dev->def_i2c_bus],
1114                                         &dvb->lna_gpio);
1115                 if (dvb->fe[0]) {
1116                         /* FE 0 attach tuner */
1117                         if (!dvb_attach(tda18271_attach,
1118                                         dvb->fe[0],
1119                                         0x60,
1120                                         &dev->i2c_adap[dev->def_i2c_bus],
1121                                         &em28xx_cxd2820r_tda18271_config)) {
1122
1123                                 dvb_frontend_detach(dvb->fe[0]);
1124                                 result = -EINVAL;
1125                                 goto out_free;
1126                         }
1127
1128 #ifdef CONFIG_GPIOLIB
1129                         /* enable LNA for DVB-T, DVB-T2 and DVB-C */
1130                         result = gpio_request_one(dvb->lna_gpio,
1131                                         GPIOF_OUT_INIT_LOW, NULL);
1132                         if (result)
1133                                 em28xx_errdev("gpio request failed %d\n",
1134                                                 result);
1135                         else
1136                                 gpio_free(dvb->lna_gpio);
1137
1138                         result = 0; /* continue even set LNA fails */
1139 #endif
1140                         dvb->fe[0]->ops.set_lna = em28xx_pctv_290e_set_lna;
1141                 }
1142
1143                 break;
1144         case EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C:
1145         {
1146                 struct xc5000_config cfg;
1147                 hauppauge_hvr930c_init(dev);
1148
1149                 dvb->fe[0] = dvb_attach(drxk_attach,
1150                                         &hauppauge_930c_drxk, &dev->i2c_adap[dev->def_i2c_bus]);
1151                 if (!dvb->fe[0]) {
1152                         result = -EINVAL;
1153                         goto out_free;
1154                 }
1155                 /* FIXME: do we need a pll semaphore? */
1156                 dvb->fe[0]->sec_priv = dvb;
1157                 sema_init(&dvb->pll_mutex, 1);
1158                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1159                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1160
1161                 /* Attach xc5000 */
1162                 memset(&cfg, 0, sizeof(cfg));
1163                 cfg.i2c_address  = 0x61;
1164                 cfg.if_khz = 4000;
1165
1166                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1167                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1168                 if (!dvb_attach(xc5000_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus],
1169                                 &cfg)) {
1170                         result = -EINVAL;
1171                         goto out_free;
1172                 }
1173                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1174                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1175
1176                 break;
1177         }
1178         case EM2884_BOARD_TERRATEC_H5:
1179                 terratec_h5_init(dev);
1180
1181                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_h5_drxk, &dev->i2c_adap[dev->def_i2c_bus]);
1182                 if (!dvb->fe[0]) {
1183                         result = -EINVAL;
1184                         goto out_free;
1185                 }
1186                 /* FIXME: do we need a pll semaphore? */
1187                 dvb->fe[0]->sec_priv = dvb;
1188                 sema_init(&dvb->pll_mutex, 1);
1189                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1190                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1191
1192                 /* Attach tda18271 to DVB-C frontend */
1193                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1194                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1195                 if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus], 0x60)) {
1196                         result = -EINVAL;
1197                         goto out_free;
1198                 }
1199                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1200                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1201
1202                 break;
1203         case EM2884_BOARD_C3TECH_DIGITAL_DUO:
1204                 dvb->fe[0] = dvb_attach(mb86a20s_attach,
1205                                            &c3tech_duo_mb86a20s_config,
1206                                            &dev->i2c_adap[dev->def_i2c_bus]);
1207                 if (dvb->fe[0] != NULL)
1208                         dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1209                                    &dev->i2c_adap[dev->def_i2c_bus],
1210                                    &c3tech_duo_tda18271_config);
1211                 break;
1212         case EM28174_BOARD_PCTV_460E:
1213                 /* attach demod */
1214                 dvb->fe[0] = dvb_attach(tda10071_attach,
1215                         &em28xx_tda10071_config, &dev->i2c_adap[dev->def_i2c_bus]);
1216
1217                 /* attach SEC */
1218                 if (dvb->fe[0])
1219                         dvb_attach(a8293_attach, dvb->fe[0], &dev->i2c_adap[dev->def_i2c_bus],
1220                                 &em28xx_a8293_config);
1221                 break;
1222         case EM2874_BOARD_DELOCK_61959:
1223         case EM2874_BOARD_MAXMEDIA_UB425_TC:
1224                 /* attach demodulator */
1225                 dvb->fe[0] = dvb_attach(drxk_attach, &maxmedia_ub425_tc_drxk,
1226                                 &dev->i2c_adap[dev->def_i2c_bus]);
1227
1228                 if (dvb->fe[0]) {
1229                         /* disable I2C-gate */
1230                         dvb->fe[0]->ops.i2c_gate_ctrl = NULL;
1231
1232                         /* attach tuner */
1233                         if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1234                                         &dev->i2c_adap[dev->def_i2c_bus],
1235                                         &em28xx_cxd2820r_tda18271_config)) {
1236                                 dvb_frontend_detach(dvb->fe[0]);
1237                                 result = -EINVAL;
1238                                 goto out_free;
1239                         }
1240                 }
1241                 break;
1242         case EM2884_BOARD_PCTV_510E:
1243         case EM2884_BOARD_PCTV_520E:
1244                 pctv_520e_init(dev);
1245
1246                 /* attach demodulator */
1247                 dvb->fe[0] = dvb_attach(drxk_attach, &pctv_520e_drxk,
1248                                 &dev->i2c_adap[dev->def_i2c_bus]);
1249
1250                 if (dvb->fe[0]) {
1251                         /* attach tuner */
1252                         if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1253                                         &dev->i2c_adap[dev->def_i2c_bus],
1254                                         &em28xx_cxd2820r_tda18271_config)) {
1255                                 dvb_frontend_detach(dvb->fe[0]);
1256                                 result = -EINVAL;
1257                                 goto out_free;
1258                         }
1259                 }
1260                 break;
1261         case EM2884_BOARD_CINERGY_HTC_STICK:
1262                 terratec_htc_stick_init(dev);
1263
1264                 /* attach demodulator */
1265                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1266                                         &dev->i2c_adap[dev->def_i2c_bus]);
1267                 if (!dvb->fe[0]) {
1268                         result = -EINVAL;
1269                         goto out_free;
1270                 }
1271
1272                 /* Attach the demodulator. */
1273                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1274                                 &dev->i2c_adap[dev->def_i2c_bus],
1275                                 &em28xx_cxd2820r_tda18271_config)) {
1276                         result = -EINVAL;
1277                         goto out_free;
1278                 }
1279                 break;
1280         case EM2884_BOARD_TERRATEC_HTC_USB_XS:
1281                 terratec_htc_usb_xs_init(dev);
1282
1283                 /* attach demodulator */
1284                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1285                                         &dev->i2c_adap[dev->def_i2c_bus]);
1286                 if (!dvb->fe[0]) {
1287                         result = -EINVAL;
1288                         goto out_free;
1289                 }
1290
1291                 /* Attach the demodulator. */
1292                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1293                                 &dev->i2c_adap[dev->def_i2c_bus],
1294                                 &em28xx_cxd2820r_tda18271_config)) {
1295                         result = -EINVAL;
1296                         goto out_free;
1297                 }
1298                 break;
1299         default:
1300                 em28xx_errdev("/2: The frontend of your DVB/ATSC card"
1301                                 " isn't supported yet\n");
1302                 break;
1303         }
1304         if (NULL == dvb->fe[0]) {
1305                 em28xx_errdev("/2: frontend initialization failed\n");
1306                 result = -EINVAL;
1307                 goto out_free;
1308         }
1309         /* define general-purpose callback pointer */
1310         dvb->fe[0]->callback = em28xx_tuner_callback;
1311         if (dvb->fe[1])
1312                 dvb->fe[1]->callback = em28xx_tuner_callback;
1313
1314         /* register everything */
1315         result = em28xx_register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
1316
1317         if (result < 0)
1318                 goto out_free;
1319
1320         /* MFE lock */
1321         dvb->adapter.mfe_shared = mfe_shared;
1322
1323         em28xx_info("Successfully loaded em28xx-dvb\n");
1324 ret:
1325         em28xx_set_mode(dev, EM28XX_SUSPEND);
1326         mutex_unlock(&dev->lock);
1327         return result;
1328
1329 out_free:
1330         kfree(dvb);
1331         dev->dvb = NULL;
1332         goto ret;
1333 }
1334
1335 static inline void prevent_sleep(struct dvb_frontend_ops *ops)
1336 {
1337         ops->set_voltage = NULL;
1338         ops->sleep = NULL;
1339         ops->tuner_ops.sleep = NULL;
1340 }
1341
1342 static int em28xx_dvb_fini(struct em28xx *dev)
1343 {
1344         if (!dev->board.has_dvb) {
1345                 /* This device does not support the extension */
1346                 return 0;
1347         }
1348
1349         if (dev->dvb) {
1350                 struct em28xx_dvb *dvb = dev->dvb;
1351
1352                 if (dev->disconnected) {
1353                         /* We cannot tell the device to sleep
1354                          * once it has been unplugged. */
1355                         if (dvb->fe[0])
1356                                 prevent_sleep(&dvb->fe[0]->ops);
1357                         if (dvb->fe[1])
1358                                 prevent_sleep(&dvb->fe[1]->ops);
1359                 }
1360
1361                 em28xx_unregister_dvb(dvb);
1362                 kfree(dvb);
1363                 dev->dvb = NULL;
1364         }
1365
1366         return 0;
1367 }
1368
1369 static struct em28xx_ops dvb_ops = {
1370         .id   = EM28XX_DVB,
1371         .name = "Em28xx dvb Extension",
1372         .init = em28xx_dvb_init,
1373         .fini = em28xx_dvb_fini,
1374 };
1375
1376 static int __init em28xx_dvb_register(void)
1377 {
1378         return em28xx_register_extension(&dvb_ops);
1379 }
1380
1381 static void __exit em28xx_dvb_unregister(void)
1382 {
1383         em28xx_unregister_extension(&dvb_ops);
1384 }
1385
1386 module_init(em28xx_dvb_register);
1387 module_exit(em28xx_dvb_unregister);