drivers/media/video/em28xx/em28xx-dvb.c

   1 /*
   2  DVB device driver for em28xx
   3
   4  (c) 2008 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  Based on cx88-dvb, saa7134-dvb and videobuf-dvb originally written by:
  14         (c) 2004, 2005 Chris Pascoe <c.pascoe@itee.uq.edu.au>
  15         (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
  16
  17  This program is free software; you can redistribute it and/or modify
  18  it under the terms of the GNU General Public License as published by
  19  the Free Software Foundation; either version 2 of the License.
  20  */
  21
  22 #include <linux/kernel.h>
  23 #include <linux/slab.h>
  24 #include <linux/usb.h>
  25
  26 #include "em28xx.h"
  27 #include <media/v4l2-common.h>
  28 #include <media/videobuf-vmalloc.h>
  29 #include <media/tuner.h>
  30 #include "tuner-simple.h"
  31
  32 #include "lgdt330x.h"
  33 #include "lgdt3305.h"
  34 #include "zl10353.h"
  35 #include "s5h1409.h"
  36 #include "mt352.h"
  37 #include "mt352_priv.h" /* FIXME */
  38 #include "tda1002x.h"
  39 #include "tda18271.h"
  40 #include "s921.h"
  41 #include "drxd.h"
  42 #include "cxd2820r.h"
  43
  44 MODULE_DESCRIPTION("driver for em28xx based DVB cards");
  45 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
  46 MODULE_LICENSE("GPL");
  47
  48 static unsigned int debug;
  49 module_param(debug, int, 0644);
  50 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
  51
  52 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  53
  54 #define dprintk(level, fmt, arg...) do {                        \
  55 if (debug >= level)                                             \
  56         printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
  57 } while (0)
  58
  59 #define EM28XX_DVB_NUM_BUFS 5
  60 #define EM28XX_DVB_MAX_PACKETS 64
  61
  62 struct em28xx_dvb {
  63         struct dvb_frontend        *fe[2];
  64
  65         /* feed count management */
  66         struct mutex               lock;
  67         int                        nfeeds;
  68
  69         /* general boilerplate stuff */
  70         struct dvb_adapter         adapter;
  71         struct dvb_demux           demux;
  72         struct dmxdev              dmxdev;
  73         struct dmx_frontend        fe_hw;
  74         struct dmx_frontend        fe_mem;
  75         struct dvb_net             net;
  76 };
  77
  78
  79 static inline void print_err_status(struct em28xx *dev,
  80                                      int packet, int status)
  81 {
  82         char *errmsg = "Unknown";
  83
  84         switch (status) {
  85         case -ENOENT:
  86                 errmsg = "unlinked synchronuously";
  87                 break;
  88         case -ECONNRESET:
  89                 errmsg = "unlinked asynchronuously";
  90                 break;
  91         case -ENOSR:
  92                 errmsg = "Buffer error (overrun)";
  93                 break;
  94         case -EPIPE:
  95                 errmsg = "Stalled (device not responding)";
  96                 break;
  97         case -EOVERFLOW:
  98                 errmsg = "Babble (bad cable?)";
  99                 break;
 100         case -EPROTO:
 101                 errmsg = "Bit-stuff error (bad cable?)";
 102                 break;
 103         case -EILSEQ:
 104                 errmsg = "CRC/Timeout (could be anything)";
 105                 break;
 106         case -ETIME:
 107                 errmsg = "Device does not respond";
 108                 break;
 109         }
 110         if (packet < 0) {
 111                 dprintk(1, "URB status %d [%s].\n", status, errmsg);
 112         } else {
 113                 dprintk(1, "URB packet %d, status %d [%s].\n",
 114                         packet, status, errmsg);
 115         }
 116 }
 117
 118 static inline int dvb_isoc_copy(struct em28xx *dev, struct urb *urb)
 119 {
 120         int i;
 121
 122         if (!dev)
 123                 return 0;
 124
 125         if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
 126                 return 0;
 127
 128         if (urb->status < 0) {
 129                 print_err_status(dev, -1, urb->status);
 130                 if (urb->status == -ENOENT)
 131                         return 0;
 132         }
 133
 134         for (i = 0; i < urb->number_of_packets; i++) {
 135                 int status = urb->iso_frame_desc[i].status;
 136
 137                 if (status < 0) {
 138                         print_err_status(dev, i, status);
 139                         if (urb->iso_frame_desc[i].status != -EPROTO)
 140                                 continue;
 141                 }
 142
 143                 dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer +
 144                                  urb->iso_frame_desc[i].offset,
 145                                  urb->iso_frame_desc[i].actual_length);
 146         }
 147
 148         return 0;
 149 }
 150
 151 static int start_streaming(struct em28xx_dvb *dvb)
 152 {
 153         int rc;
 154         struct em28xx *dev = dvb->adapter.priv;
 155         int max_dvb_packet_size;
 156
 157         usb_set_interface(dev->udev, 0, 1);
 158         rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 159         if (rc < 0)
 160                 return rc;
 161
 162         max_dvb_packet_size = em28xx_isoc_dvb_max_packetsize(dev);
 163
 164         return em28xx_init_isoc(dev, EM28XX_DVB_MAX_PACKETS,
 165                                 EM28XX_DVB_NUM_BUFS, max_dvb_packet_size,
 166                                 dvb_isoc_copy);
 167 }
 168
 169 static int stop_streaming(struct em28xx_dvb *dvb)
 170 {
 171         struct em28xx *dev = dvb->adapter.priv;
 172
 173         em28xx_uninit_isoc(dev);
 174
 175         em28xx_set_mode(dev, EM28XX_SUSPEND);
 176
 177         return 0;
 178 }
 179
 180 static int start_feed(struct dvb_demux_feed *feed)
 181 {
 182         struct dvb_demux *demux  = feed->demux;
 183         struct em28xx_dvb *dvb = demux->priv;
 184         int rc, ret;
 185
 186         if (!demux->dmx.frontend)
 187                 return -EINVAL;
 188
 189         mutex_lock(&dvb->lock);
 190         dvb->nfeeds++;
 191         rc = dvb->nfeeds;
 192
 193         if (dvb->nfeeds == 1) {
 194                 ret = start_streaming(dvb);
 195                 if (ret < 0)
 196                         rc = ret;
 197         }
 198
 199         mutex_unlock(&dvb->lock);
 200         return rc;
 201 }
 202
 203 static int stop_feed(struct dvb_demux_feed *feed)
 204 {
 205         struct dvb_demux *demux  = feed->demux;
 206         struct em28xx_dvb *dvb = demux->priv;
 207         int err = 0;
 208
 209         mutex_lock(&dvb->lock);
 210         dvb->nfeeds--;
 211
 212         if (0 == dvb->nfeeds)
 213                 err = stop_streaming(dvb);
 214
 215         mutex_unlock(&dvb->lock);
 216         return err;
 217 }
 218
 219
 220
 221 /* ------------------------------------------------------------------ */
 222 static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
 223 {
 224         struct em28xx *dev = fe->dvb->priv;
 225
 226         if (acquire)
 227                 return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 228         else
 229                 return em28xx_set_mode(dev, EM28XX_SUSPEND);
 230 }
 231
 232 /* ------------------------------------------------------------------ */
 233
 234 static struct lgdt330x_config em2880_lgdt3303_dev = {
 235         .demod_address = 0x0e,
 236         .demod_chip = LGDT3303,
 237 };
 238
 239 static struct lgdt3305_config em2870_lgdt3304_dev = {
 240         .i2c_addr           = 0x0e,
 241         .demod_chip         = LGDT3304,
 242         .spectral_inversion = 1,
 243         .deny_i2c_rptr      = 1,
 244         .mpeg_mode          = LGDT3305_MPEG_PARALLEL,
 245         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 246         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 247         .vsb_if_khz         = 3250,
 248         .qam_if_khz         = 4000,
 249 };
 250
 251 static struct s921_config sharp_isdbt = {
 252         .demod_address = 0x30 >> 1
 253 };
 254
 255 static struct zl10353_config em28xx_zl10353_with_xc3028 = {
 256         .demod_address = (0x1e >> 1),
 257         .no_tuner = 1,
 258         .parallel_ts = 1,
 259         .if2 = 45600,
 260 };
 261
 262 static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
 263         .demod_address = 0x32 >> 1,
 264         .output_mode   = S5H1409_PARALLEL_OUTPUT,
 265         .gpio          = S5H1409_GPIO_OFF,
 266         .inversion     = S5H1409_INVERSION_OFF,
 267         .status_mode   = S5H1409_DEMODLOCKING,
 268         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
 269 };
 270
 271 static struct tda18271_std_map kworld_a340_std_map = {
 272         .atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 0,
 273                       .if_lvl = 1, .rfagc_top = 0x37, },
 274         .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 1,
 275                       .if_lvl = 1, .rfagc_top = 0x37, },
 276 };
 277
 278 static struct tda18271_config kworld_a340_config = {
 279         .std_map           = &kworld_a340_std_map,
 280 };
 281
 282 static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
 283         .demod_address = (0x1e >> 1),
 284         .no_tuner = 1,
 285         .disable_i2c_gate_ctrl = 1,
 286         .parallel_ts = 1,
 287         .if2 = 45600,
 288 };
 289
 290 static struct drxd_config em28xx_drxd = {
 291         .index = 0, .demod_address = 0x70, .demod_revision = 0xa2,
 292         .demoda_address = 0x00, .pll_address = 0x00,
 293         .pll_type = DRXD_PLL_NONE, .clock = 12000, .insert_rs_byte = 1,
 294         .pll_set = NULL, .osc_deviation = NULL, .IF = 42800000,
 295         .disable_i2c_gate_ctrl = 1,
 296 };
 297
 298 static int mt352_terratec_xs_init(struct dvb_frontend *fe)
 299 {
 300         /* Values extracted from a USB trace of the Terratec Windows driver */
 301         static u8 clock_config[]   = { CLOCK_CTL,  0x38, 0x2c };
 302         static u8 reset[]          = { RESET,      0x80 };
 303         static u8 adc_ctl_1_cfg[]  = { ADC_CTL_1,  0x40 };
 304         static u8 agc_cfg[]        = { AGC_TARGET, 0x28, 0xa0 };
 305         static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
 306         static u8 rs_err_cfg[]     = { RS_ERR_PER_1, 0x00, 0x4d };
 307         static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
 308         static u8 trl_nom_cfg[]    = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
 309         static u8 tps_given_cfg[]  = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
 310         static u8 tuner_go[]       = { TUNER_GO, 0x01};
 311
 312         mt352_write(fe, clock_config,   sizeof(clock_config));
 313         udelay(200);
 314         mt352_write(fe, reset,          sizeof(reset));
 315         mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));
 316         mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
 317         mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
 318         mt352_write(fe, rs_err_cfg,     sizeof(rs_err_cfg));
 319         mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
 320         mt352_write(fe, trl_nom_cfg,    sizeof(trl_nom_cfg));
 321         mt352_write(fe, tps_given_cfg,  sizeof(tps_given_cfg));
 322         mt352_write(fe, tuner_go,       sizeof(tuner_go));
 323         return 0;
 324 }
 325
 326 static struct mt352_config terratec_xs_mt352_cfg = {
 327         .demod_address = (0x1e >> 1),
 328         .no_tuner = 1,
 329         .if2 = 45600,
 330         .demod_init = mt352_terratec_xs_init,
 331 };
 332
 333 static struct tda10023_config em28xx_tda10023_config = {
 334         .demod_address = 0x0c,
 335         .invert = 1,
 336 };
 337
 338 static struct cxd2820r_config em28xx_cxd2820r_config = {
 339         .i2c_address = (0xd8 >> 1),
 340         .ts_mode = CXD2820R_TS_SERIAL,
 341         .if_dvbt_6  = 3300,
 342         .if_dvbt_7  = 3500,
 343         .if_dvbt_8  = 4000,
 344         .if_dvbt2_6 = 3300,
 345         .if_dvbt2_7 = 3500,
 346         .if_dvbt2_8 = 4000,
 347         .if_dvbc    = 5000,
 348
 349         /* enable LNA for DVB-T2 and DVB-C */
 350         .gpio_dvbt2[0] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | CXD2820R_GPIO_L,
 351         .gpio_dvbc[0] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | CXD2820R_GPIO_L,
 352 };
 353
 354 static struct tda18271_config em28xx_cxd2820r_tda18271_config = {
 355         .output_opt = TDA18271_OUTPUT_LT_OFF,
 356 };
 357
 358 /* ------------------------------------------------------------------ */
 359
 360 static int attach_xc3028(u8 addr, struct em28xx *dev)
 361 {
 362         struct dvb_frontend *fe;
 363         struct xc2028_config cfg;
 364
 365         memset(&cfg, 0, sizeof(cfg));
 366         cfg.i2c_adap  = &dev->i2c_adap;
 367         cfg.i2c_addr  = addr;
 368
 369         if (!dev->dvb->fe[0]) {
 370                 em28xx_errdev("/2: dvb frontend not attached. "
 371                                 "Can't attach xc3028\n");
 372                 return -EINVAL;
 373         }
 374
 375         fe = dvb_attach(xc2028_attach, dev->dvb->fe[0], &cfg);
 376         if (!fe) {
 377                 em28xx_errdev("/2: xc3028 attach failed\n");
 378                 dvb_frontend_detach(dev->dvb->fe[0]);
 379                 dev->dvb->fe[0] = NULL;
 380                 return -EINVAL;
 381         }
 382
 383         em28xx_info("%s/2: xc3028 attached\n", dev->name);
 384
 385         return 0;
 386 }
 387
 388 /* ------------------------------------------------------------------ */
 389
 390 static int register_dvb(struct em28xx_dvb *dvb,
 391                  struct module *module,
 392                  struct em28xx *dev,
 393                  struct device *device)
 394 {
 395         int result;
 396
 397         mutex_init(&dvb->lock);
 398
 399         /* register adapter */
 400         result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
 401                                       adapter_nr);
 402         if (result < 0) {
 403                 printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
 404                        dev->name, result);
 405                 goto fail_adapter;
 406         }
 407
 408         /* Ensure all frontends negotiate bus access */
 409         dvb->fe[0]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 410         if (dvb->fe[1])
 411                 dvb->fe[1]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 412
 413         dvb->adapter.priv = dev;
 414
 415         /* register frontend */
 416         result = dvb_register_frontend(&dvb->adapter, dvb->fe[0]);
 417         if (result < 0) {
 418                 printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
 419                        dev->name, result);
 420                 goto fail_frontend0;
 421         }
 422
 423         /* register 2nd frontend */
 424         if (dvb->fe[1]) {
 425                 result = dvb_register_frontend(&dvb->adapter, dvb->fe[1]);
 426                 if (result < 0) {
 427                         printk(KERN_WARNING "%s: 2nd dvb_register_frontend failed (errno = %d)\n",
 428                                 dev->name, result);
 429                         goto fail_frontend1;
 430                 }
 431         }
 432
 433         /* register demux stuff */
 434         dvb->demux.dmx.capabilities =
 435                 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 436                 DMX_MEMORY_BASED_FILTERING;
 437         dvb->demux.priv       = dvb;
 438         dvb->demux.filternum  = 256;
 439         dvb->demux.feednum    = 256;
 440         dvb->demux.start_feed = start_feed;
 441         dvb->demux.stop_feed  = stop_feed;
 442
 443         result = dvb_dmx_init(&dvb->demux);
 444         if (result < 0) {
 445                 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
 446                        dev->name, result);
 447                 goto fail_dmx;
 448         }
 449
 450         dvb->dmxdev.filternum    = 256;
 451         dvb->dmxdev.demux        = &dvb->demux.dmx;
 452         dvb->dmxdev.capabilities = 0;
 453         result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
 454         if (result < 0) {
 455                 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
 456                        dev->name, result);
 457                 goto fail_dmxdev;
 458         }
 459
 460         dvb->fe_hw.source = DMX_FRONTEND_0;
 461         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 462         if (result < 0) {
 463                 printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
 464                        dev->name, result);
 465                 goto fail_fe_hw;
 466         }
 467
 468         dvb->fe_mem.source = DMX_MEMORY_FE;
 469         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 470         if (result < 0) {
 471                 printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
 472                        dev->name, result);
 473                 goto fail_fe_mem;
 474         }
 475
 476         result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 477         if (result < 0) {
 478                 printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
 479                        dev->name, result);
 480                 goto fail_fe_conn;
 481         }
 482
 483         /* register network adapter */
 484         dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
 485         return 0;
 486
 487 fail_fe_conn:
 488         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 489 fail_fe_mem:
 490         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 491 fail_fe_hw:
 492         dvb_dmxdev_release(&dvb->dmxdev);
 493 fail_dmxdev:
 494         dvb_dmx_release(&dvb->demux);
 495 fail_dmx:
 496         if (dvb->fe[1])
 497                 dvb_unregister_frontend(dvb->fe[1]);
 498         dvb_unregister_frontend(dvb->fe[0]);
 499 fail_frontend1:
 500         if (dvb->fe[1])
 501                 dvb_frontend_detach(dvb->fe[1]);
 502 fail_frontend0:
 503         dvb_frontend_detach(dvb->fe[0]);
 504         dvb_unregister_adapter(&dvb->adapter);
 505 fail_adapter:
 506         return result;
 507 }
 508
 509 static void unregister_dvb(struct em28xx_dvb *dvb)
 510 {
 511         dvb_net_release(&dvb->net);
 512         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 513         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 514         dvb_dmxdev_release(&dvb->dmxdev);
 515         dvb_dmx_release(&dvb->demux);
 516         if (dvb->fe[1])
 517                 dvb_unregister_frontend(dvb->fe[1]);
 518         dvb_unregister_frontend(dvb->fe[0]);
 519         if (dvb->fe[1])
 520                 dvb_frontend_detach(dvb->fe[1]);
 521         dvb_frontend_detach(dvb->fe[0]);
 522         dvb_unregister_adapter(&dvb->adapter);
 523 }
 524
 525 static int dvb_init(struct em28xx *dev)
 526 {
 527         int result = 0;
 528         struct em28xx_dvb *dvb;
 529
 530         if (!dev->board.has_dvb) {
 531                 /* This device does not support the extension */
 532                 printk(KERN_INFO "em28xx_dvb: This device does not support the extension\n");
 533                 return 0;
 534         }
 535
 536         dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
 537
 538         if (dvb == NULL) {
 539                 em28xx_info("em28xx_dvb: memory allocation failed\n");
 540                 return -ENOMEM;
 541         }
 542         dev->dvb = dvb;
 543         dvb->fe[0] = dvb->fe[1] = NULL;
 544
 545         mutex_lock(&dev->lock);
 546         em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 547         /* init frontend */
 548         switch (dev->model) {
 549         case EM2874_LEADERSHIP_ISDBT:
 550                 dvb->fe[0] = dvb_attach(s921_attach,
 551                                 &sharp_isdbt, &dev->i2c_adap);
 552
 553                 if (!dvb->fe[0]) {
 554                         result = -EINVAL;
 555                         goto out_free;
 556                 }
 557
 558                 break;
 559         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
 560         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
 561         case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
 562         case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
 563                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
 564                                            &em2880_lgdt3303_dev,
 565                                            &dev->i2c_adap);
 566                 if (attach_xc3028(0x61, dev) < 0) {
 567                         result = -EINVAL;
 568                         goto out_free;
 569                 }
 570                 break;
 571         case EM2880_BOARD_KWORLD_DVB_310U:
 572                 dvb->fe[0] = dvb_attach(zl10353_attach,
 573                                            &em28xx_zl10353_with_xc3028,
 574                                            &dev->i2c_adap);
 575                 if (attach_xc3028(0x61, dev) < 0) {
 576                         result = -EINVAL;
 577                         goto out_free;
 578                 }
 579                 break;
 580         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
 581         case EM2882_BOARD_TERRATEC_HYBRID_XS:
 582         case EM2880_BOARD_EMPIRE_DUAL_TV:
 583                 dvb->fe[0] = dvb_attach(zl10353_attach,
 584                                            &em28xx_zl10353_xc3028_no_i2c_gate,
 585                                            &dev->i2c_adap);
 586                 if (attach_xc3028(0x61, dev) < 0) {
 587                         result = -EINVAL;
 588                         goto out_free;
 589                 }
 590                 break;
 591         case EM2880_BOARD_TERRATEC_HYBRID_XS:
 592         case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
 593         case EM2881_BOARD_PINNACLE_HYBRID_PRO:
 594         case EM2882_BOARD_DIKOM_DK300:
 595         case EM2882_BOARD_KWORLD_VS_DVBT:
 596                 dvb->fe[0] = dvb_attach(zl10353_attach,
 597                                            &em28xx_zl10353_xc3028_no_i2c_gate,
 598                                            &dev->i2c_adap);
 599                 if (dvb->fe[0] == NULL) {
 600                         /* This board could have either a zl10353 or a mt352.
 601                            If the chip id isn't for zl10353, try mt352 */
 602                         dvb->fe[0] = dvb_attach(mt352_attach,
 603                                                    &terratec_xs_mt352_cfg,
 604                                                    &dev->i2c_adap);
 605                 }
 606
 607                 if (attach_xc3028(0x61, dev) < 0) {
 608                         result = -EINVAL;
 609                         goto out_free;
 610                 }
 611                 break;
 612         case EM2883_BOARD_KWORLD_HYBRID_330U:
 613         case EM2882_BOARD_EVGA_INDTUBE:
 614                 dvb->fe[0] = dvb_attach(s5h1409_attach,
 615                                            &em28xx_s5h1409_with_xc3028,
 616                                            &dev->i2c_adap);
 617                 if (attach_xc3028(0x61, dev) < 0) {
 618                         result = -EINVAL;
 619                         goto out_free;
 620                 }
 621                 break;
 622         case EM2882_BOARD_KWORLD_ATSC_315U:
 623                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
 624                                            &em2880_lgdt3303_dev,
 625                                            &dev->i2c_adap);
 626                 if (dvb->fe[0] != NULL) {
 627                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
 628                                 &dev->i2c_adap, 0x61, TUNER_THOMSON_DTT761X)) {
 629                                 result = -EINVAL;
 630                                 goto out_free;
 631                         }
 632                 }
 633                 break;
 634         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
 635         case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
 636                 dvb->fe[0] = dvb_attach(drxd_attach, &em28xx_drxd, NULL,
 637                                            &dev->i2c_adap, &dev->udev->dev);
 638                 if (attach_xc3028(0x61, dev) < 0) {
 639                         result = -EINVAL;
 640                         goto out_free;
 641                 }
 642                 break;
 643         case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
 644                 /* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
 645                 dvb->fe[0] = dvb_attach(tda10023_attach,
 646                         &em28xx_tda10023_config,
 647                         &dev->i2c_adap, 0x48);
 648                 if (dvb->fe[0]) {
 649                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
 650                                 &dev->i2c_adap, 0x60, TUNER_PHILIPS_CU1216L)) {
 651                                 result = -EINVAL;
 652                                 goto out_free;
 653                         }
 654                 }
 655                 break;
 656         case EM2870_BOARD_KWORLD_A340:
 657                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
 658                                            &em2870_lgdt3304_dev,
 659                                            &dev->i2c_adap);
 660                 if (dvb->fe[0] != NULL)
 661                         dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
 662                                    &dev->i2c_adap, &kworld_a340_config);
 663                 break;
 664         case EM28174_BOARD_PCTV_290E:
 665                 /* MFE
 666                  * FE 0 = DVB-T/T2 + FE 1 = DVB-C, both sharing same tuner. */
 667                 /* FE 0 */
 668                 dvb->fe[0] = dvb_attach(cxd2820r_attach,
 669                         &em28xx_cxd2820r_config, &dev->i2c_adap, NULL);
 670                 if (dvb->fe[0]) {
 671                         struct i2c_adapter *i2c_tuner;
 672                         i2c_tuner = cxd2820r_get_tuner_i2c_adapter(dvb->fe[0]);
 673                         /* FE 0 attach tuner */
 674                         if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
 675                                 i2c_tuner, &em28xx_cxd2820r_tda18271_config)) {
 676                                 dvb_frontend_detach(dvb->fe[0]);
 677                                 result = -EINVAL;
 678                                 goto out_free;
 679                         }
 680                         /* FE 1. This dvb_attach() cannot fail. */
 681                         dvb->fe[1] = dvb_attach(cxd2820r_attach, NULL, NULL,
 682                                 dvb->fe[0]);
 683                         dvb->fe[1]->id = 1;
 684                         /* FE 1 attach tuner */
 685                         if (!dvb_attach(tda18271_attach, dvb->fe[1], 0x60,
 686                                 i2c_tuner, &em28xx_cxd2820r_tda18271_config)) {
 687                                 dvb_frontend_detach(dvb->fe[1]);
 688                                 /* leave FE 0 still active */
 689                         }
 690                 }
 691                 break;
 692         default:
 693                 em28xx_errdev("/2: The frontend of your DVB/ATSC card"
 694                                 " isn't supported yet\n");
 695                 break;
 696         }
 697         if (NULL == dvb->fe[0]) {
 698                 em28xx_errdev("/2: frontend initialization failed\n");
 699                 result = -EINVAL;
 700                 goto out_free;
 701         }
 702         /* define general-purpose callback pointer */
 703         dvb->fe[0]->callback = em28xx_tuner_callback;
 704
 705         /* register everything */
 706         result = register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
 707
 708         if (result < 0)
 709                 goto out_free;
 710
 711         em28xx_info("Successfully loaded em28xx-dvb\n");
 712 ret:
 713         em28xx_set_mode(dev, EM28XX_SUSPEND);
 714         mutex_unlock(&dev->lock);
 715         return result;
 716
 717 out_free:
 718         kfree(dvb);
 719         dev->dvb = NULL;
 720         goto ret;
 721 }
 722
 723 static int dvb_fini(struct em28xx *dev)
 724 {
 725         if (!dev->board.has_dvb) {
 726                 /* This device does not support the extension */
 727                 return 0;
 728         }
 729
 730         if (dev->dvb) {
 731                 unregister_dvb(dev->dvb);
 732                 kfree(dev->dvb);
 733                 dev->dvb = NULL;
 734         }
 735
 736         return 0;
 737 }
 738
 739 static struct em28xx_ops dvb_ops = {
 740         .id   = EM28XX_DVB,
 741         .name = "Em28xx dvb Extension",
 742         .init = dvb_init,
 743         .fini = dvb_fini,
 744 };
 745
 746 static int __init em28xx_dvb_register(void)
 747 {
 748         return em28xx_register_extension(&dvb_ops);
 749 }
 750
 751 static void __exit em28xx_dvb_unregister(void)
 752 {
 753         em28xx_unregister_extension(&dvb_ops);
 754 }
 755
 756 module_init(em28xx_dvb_register);
 757 module_exit(em28xx_dvb_unregister);