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  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 #include <linux/gpio.h>
  32
  33 #include "lgdt330x.h"
  34 #include "lgdt3305.h"
  35 #include "zl10353.h"
  36 #include "s5h1409.h"
  37 #include "mt352.h"
  38 #include "mt352_priv.h" /* FIXME */
  39 #include "tda1002x.h"
  40 #include "tda18271.h"
  41 #include "s921.h"
  42 #include "drxd.h"
  43 #include "cxd2820r.h"
  44 #include "tda18271c2dd.h"
  45 #include "drxk.h"
  46 #include "tda10071.h"
  47 #include "a8293.h"
  48 #include "qt1010.h"
  49
  50 MODULE_DESCRIPTION("driver for em28xx based DVB cards");
  51 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
  52 MODULE_LICENSE("GPL");
  53
  54 static unsigned int debug;
  55 module_param(debug, int, 0644);
  56 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
  57
  58 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  59
  60 #define dprintk(level, fmt, arg...) do {                        \
  61 if (debug >= level)                                             \
  62         printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
  63 } while (0)
  64
  65 struct em28xx_dvb {
  66         struct dvb_frontend        *fe[2];
  67
  68         /* feed count management */
  69         struct mutex               lock;
  70         int                        nfeeds;
  71
  72         /* general boilerplate stuff */
  73         struct dvb_adapter         adapter;
  74         struct dvb_demux           demux;
  75         struct dmxdev              dmxdev;
  76         struct dmx_frontend        fe_hw;
  77         struct dmx_frontend        fe_mem;
  78         struct dvb_net             net;
  79
  80         /* Due to DRX-K - probably need changes */
  81         int (*gate_ctrl)(struct dvb_frontend *, int);
  82         struct semaphore      pll_mutex;
  83         bool                    dont_attach_fe1;
  84         int                     lna_gpio;
  85 };
  86
  87
  88 static inline void print_err_status(struct em28xx *dev,
  89                                      int packet, int status)
  90 {
  91         char *errmsg = "Unknown";
  92
  93         switch (status) {
  94         case -ENOENT:
  95                 errmsg = "unlinked synchronuously";
  96                 break;
  97         case -ECONNRESET:
  98                 errmsg = "unlinked asynchronuously";
  99                 break;
 100         case -ENOSR:
 101                 errmsg = "Buffer error (overrun)";
 102                 break;
 103         case -EPIPE:
 104                 errmsg = "Stalled (device not responding)";
 105                 break;
 106         case -EOVERFLOW:
 107                 errmsg = "Babble (bad cable?)";
 108                 break;
 109         case -EPROTO:
 110                 errmsg = "Bit-stuff error (bad cable?)";
 111                 break;
 112         case -EILSEQ:
 113                 errmsg = "CRC/Timeout (could be anything)";
 114                 break;
 115         case -ETIME:
 116                 errmsg = "Device does not respond";
 117                 break;
 118         }
 119         if (packet < 0) {
 120                 dprintk(1, "URB status %d [%s].\n", status, errmsg);
 121         } else {
 122                 dprintk(1, "URB packet %d, status %d [%s].\n",
 123                         packet, status, errmsg);
 124         }
 125 }
 126
 127 static inline int em28xx_dvb_isoc_copy(struct em28xx *dev, struct urb *urb)
 128 {
 129         int i;
 130
 131         if (!dev)
 132                 return 0;
 133
 134         if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
 135                 return 0;
 136
 137         if (urb->status < 0) {
 138                 print_err_status(dev, -1, urb->status);
 139                 if (urb->status == -ENOENT)
 140                         return 0;
 141         }
 142
 143         for (i = 0; i < urb->number_of_packets; i++) {
 144                 int status = urb->iso_frame_desc[i].status;
 145
 146                 if (status < 0) {
 147                         print_err_status(dev, i, status);
 148                         if (urb->iso_frame_desc[i].status != -EPROTO)
 149                                 continue;
 150                 }
 151
 152                 dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer +
 153                                  urb->iso_frame_desc[i].offset,
 154                                  urb->iso_frame_desc[i].actual_length);
 155         }
 156
 157         return 0;
 158 }
 159
 160 static int em28xx_start_streaming(struct em28xx_dvb *dvb)
 161 {
 162         int rc;
 163         struct em28xx *dev = dvb->adapter.priv;
 164         int max_dvb_packet_size;
 165
 166         usb_set_interface(dev->udev, 0, dev->dvb_alt);
 167         rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 168         if (rc < 0)
 169                 return rc;
 170
 171         max_dvb_packet_size = dev->dvb_max_pkt_size;
 172         if (max_dvb_packet_size < 0)
 173                 return max_dvb_packet_size;
 174         dprintk(1, "Using %d buffers each with %d x %d bytes\n",
 175                 EM28XX_DVB_NUM_BUFS,
 176                 EM28XX_DVB_MAX_PACKETS,
 177                 max_dvb_packet_size);
 178
 179         return em28xx_init_isoc(dev, EM28XX_DIGITAL_MODE,
 180                                 EM28XX_DVB_MAX_PACKETS, EM28XX_DVB_NUM_BUFS,
 181                                 max_dvb_packet_size, em28xx_dvb_isoc_copy);
 182 }
 183
 184 static int em28xx_stop_streaming(struct em28xx_dvb *dvb)
 185 {
 186         struct em28xx *dev = dvb->adapter.priv;
 187
 188         em28xx_stop_urbs(dev);
 189
 190         em28xx_set_mode(dev, EM28XX_SUSPEND);
 191
 192         return 0;
 193 }
 194
 195 static int em28xx_start_feed(struct dvb_demux_feed *feed)
 196 {
 197         struct dvb_demux *demux  = feed->demux;
 198         struct em28xx_dvb *dvb = demux->priv;
 199         int rc, ret;
 200
 201         if (!demux->dmx.frontend)
 202                 return -EINVAL;
 203
 204         mutex_lock(&dvb->lock);
 205         dvb->nfeeds++;
 206         rc = dvb->nfeeds;
 207
 208         if (dvb->nfeeds == 1) {
 209                 ret = em28xx_start_streaming(dvb);
 210                 if (ret < 0)
 211                         rc = ret;
 212         }
 213
 214         mutex_unlock(&dvb->lock);
 215         return rc;
 216 }
 217
 218 static int em28xx_stop_feed(struct dvb_demux_feed *feed)
 219 {
 220         struct dvb_demux *demux  = feed->demux;
 221         struct em28xx_dvb *dvb = demux->priv;
 222         int err = 0;
 223
 224         mutex_lock(&dvb->lock);
 225         dvb->nfeeds--;
 226
 227         if (0 == dvb->nfeeds)
 228                 err = em28xx_stop_streaming(dvb);
 229
 230         mutex_unlock(&dvb->lock);
 231         return err;
 232 }
 233
 234
 235
 236 /* ------------------------------------------------------------------ */
 237 static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
 238 {
 239         struct em28xx *dev = fe->dvb->priv;
 240
 241         if (acquire)
 242                 return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 243         else
 244                 return em28xx_set_mode(dev, EM28XX_SUSPEND);
 245 }
 246
 247 /* ------------------------------------------------------------------ */
 248
 249 static struct lgdt330x_config em2880_lgdt3303_dev = {
 250         .demod_address = 0x0e,
 251         .demod_chip = LGDT3303,
 252 };
 253
 254 static struct lgdt3305_config em2870_lgdt3304_dev = {
 255         .i2c_addr           = 0x0e,
 256         .demod_chip         = LGDT3304,
 257         .spectral_inversion = 1,
 258         .deny_i2c_rptr      = 1,
 259         .mpeg_mode          = LGDT3305_MPEG_PARALLEL,
 260         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 261         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 262         .vsb_if_khz         = 3250,
 263         .qam_if_khz         = 4000,
 264 };
 265
 266 static struct s921_config sharp_isdbt = {
 267         .demod_address = 0x30 >> 1
 268 };
 269
 270 static struct zl10353_config em28xx_zl10353_with_xc3028 = {
 271         .demod_address = (0x1e >> 1),
 272         .no_tuner = 1,
 273         .parallel_ts = 1,
 274         .if2 = 45600,
 275 };
 276
 277 static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
 278         .demod_address = 0x32 >> 1,
 279         .output_mode   = S5H1409_PARALLEL_OUTPUT,
 280         .gpio          = S5H1409_GPIO_OFF,
 281         .inversion     = S5H1409_INVERSION_OFF,
 282         .status_mode   = S5H1409_DEMODLOCKING,
 283         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
 284 };
 285
 286 static struct tda18271_std_map kworld_a340_std_map = {
 287         .atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 0,
 288                       .if_lvl = 1, .rfagc_top = 0x37, },
 289         .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 1,
 290                       .if_lvl = 1, .rfagc_top = 0x37, },
 291 };
 292
 293 static struct tda18271_config kworld_a340_config = {
 294         .std_map           = &kworld_a340_std_map,
 295 };
 296
 297 static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
 298         .demod_address = (0x1e >> 1),
 299         .no_tuner = 1,
 300         .disable_i2c_gate_ctrl = 1,
 301         .parallel_ts = 1,
 302         .if2 = 45600,
 303 };
 304
 305 static struct drxd_config em28xx_drxd = {
 306         .demod_address = 0x70,
 307         .demod_revision = 0xa2,
 308         .pll_type = DRXD_PLL_NONE,
 309         .clock = 12000,
 310         .insert_rs_byte = 1,
 311         .IF = 42800000,
 312         .disable_i2c_gate_ctrl = 1,
 313 };
 314
 315 static struct drxk_config terratec_h5_drxk = {
 316         .adr = 0x29,
 317         .single_master = 1,
 318         .no_i2c_bridge = 1,
 319         .microcode_name = "dvb-usb-terratec-h5-drxk.fw",
 320         .qam_demod_parameter_count = 2,
 321 };
 322
 323 static struct drxk_config hauppauge_930c_drxk = {
 324         .adr = 0x29,
 325         .single_master = 1,
 326         .no_i2c_bridge = 1,
 327         .microcode_name = "dvb-usb-hauppauge-hvr930c-drxk.fw",
 328         .chunk_size = 56,
 329         .qam_demod_parameter_count = 2,
 330 };
 331
 332 struct drxk_config terratec_htc_stick_drxk = {
 333         .adr = 0x29,
 334         .single_master = 1,
 335         .no_i2c_bridge = 1,
 336         .microcode_name = "dvb-usb-terratec-htc-stick-drxk.fw",
 337         .chunk_size = 54,
 338         .qam_demod_parameter_count = 2,
 339         /* Required for the antenna_gpio to disable LNA. */
 340         .antenna_dvbt = true,
 341         /* The windows driver uses the same. This will disable LNA. */
 342         .antenna_gpio = 0x6,
 343 };
 344
 345 static struct drxk_config maxmedia_ub425_tc_drxk = {
 346         .adr = 0x29,
 347         .single_master = 1,
 348         .no_i2c_bridge = 1,
 349 };
 350
 351 static struct drxk_config pctv_520e_drxk = {
 352         .adr = 0x29,
 353         .single_master = 1,
 354         .microcode_name = "dvb-demod-drxk-pctv.fw",
 355         .qam_demod_parameter_count = 2,
 356         .chunk_size = 58,
 357         .antenna_dvbt = true, /* disable LNA */
 358         .antenna_gpio = (1 << 2), /* disable LNA */
 359 };
 360
 361 static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
 362 {
 363         struct em28xx_dvb *dvb = fe->sec_priv;
 364         int status;
 365
 366         if (!dvb)
 367                 return -EINVAL;
 368
 369         if (enable) {
 370                 down(&dvb->pll_mutex);
 371                 status = dvb->gate_ctrl(fe, 1);
 372         } else {
 373                 status = dvb->gate_ctrl(fe, 0);
 374                 up(&dvb->pll_mutex);
 375         }
 376         return status;
 377 }
 378
 379 static void hauppauge_hvr930c_init(struct em28xx *dev)
 380 {
 381         int i;
 382
 383         struct em28xx_reg_seq hauppauge_hvr930c_init[] = {
 384                 {EM2874_R80_GPIO,       0xff,   0xff,   0x65},
 385                 {EM2874_R80_GPIO,       0xfb,   0xff,   0x32},
 386                 {EM2874_R80_GPIO,       0xff,   0xff,   0xb8},
 387                 { -1,                   -1,     -1,     -1},
 388         };
 389         struct em28xx_reg_seq hauppauge_hvr930c_end[] = {
 390                 {EM2874_R80_GPIO,       0xef,   0xff,   0x01},
 391                 {EM2874_R80_GPIO,       0xaf,   0xff,   0x65},
 392                 {EM2874_R80_GPIO,       0xef,   0xff,   0x76},
 393                 {EM2874_R80_GPIO,       0xef,   0xff,   0x01},
 394                 {EM2874_R80_GPIO,       0xcf,   0xff,   0x0b},
 395                 {EM2874_R80_GPIO,       0xef,   0xff,   0x40},
 396
 397                 {EM2874_R80_GPIO,       0xcf,   0xff,   0x65},
 398                 {EM2874_R80_GPIO,       0xef,   0xff,   0x65},
 399                 {EM2874_R80_GPIO,       0xcf,   0xff,   0x0b},
 400                 {EM2874_R80_GPIO,       0xef,   0xff,   0x65},
 401
 402                 { -1,                   -1,     -1,     -1},
 403         };
 404
 405         struct {
 406                 unsigned char r[4];
 407                 int len;
 408         } regs[] = {
 409                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 410                 {{ 0x01, 0x02 }, 2},
 411                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 412                 {{ 0x01, 0x00 }, 2},
 413                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 414                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 415                 {{ 0x01, 0x00 }, 2},
 416                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 417                 {{ 0x04, 0x00 }, 2},
 418                 {{ 0x00, 0x04 }, 2},
 419                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 420                 {{ 0x04, 0x14 }, 2},
 421                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 422         };
 423
 424         em28xx_gpio_set(dev, hauppauge_hvr930c_init);
 425         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 426         msleep(10);
 427         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 428         msleep(10);
 429
 430         dev->i2c_client.addr = 0x82 >> 1;
 431
 432         for (i = 0; i < ARRAY_SIZE(regs); i++)
 433                 i2c_master_send(&dev->i2c_client, regs[i].r, regs[i].len);
 434         em28xx_gpio_set(dev, hauppauge_hvr930c_end);
 435
 436         msleep(100);
 437
 438         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 439         msleep(30);
 440
 441         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 442         msleep(10);
 443
 444 }
 445
 446 static void terratec_h5_init(struct em28xx *dev)
 447 {
 448         int i;
 449         struct em28xx_reg_seq terratec_h5_init[] = {
 450                 {EM28XX_R08_GPIO,       0xff,   0xff,   10},
 451                 {EM2874_R80_GPIO,       0xf6,   0xff,   100},
 452                 {EM2874_R80_GPIO,       0xf2,   0xff,   50},
 453                 {EM2874_R80_GPIO,       0xf6,   0xff,   100},
 454                 { -1,                   -1,     -1,     -1},
 455         };
 456         struct em28xx_reg_seq terratec_h5_end[] = {
 457                 {EM2874_R80_GPIO,       0xe6,   0xff,   100},
 458                 {EM2874_R80_GPIO,       0xa6,   0xff,   50},
 459                 {EM2874_R80_GPIO,       0xe6,   0xff,   100},
 460                 { -1,                   -1,     -1,     -1},
 461         };
 462         struct {
 463                 unsigned char r[4];
 464                 int len;
 465         } regs[] = {
 466                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 467                 {{ 0x01, 0x02 }, 2},
 468                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 469                 {{ 0x01, 0x00 }, 2},
 470                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 471                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 472                 {{ 0x01, 0x00 }, 2},
 473                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 474                 {{ 0x04, 0x00 }, 2},
 475                 {{ 0x00, 0x04 }, 2},
 476                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 477                 {{ 0x04, 0x14 }, 2},
 478                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 479         };
 480
 481         em28xx_gpio_set(dev, terratec_h5_init);
 482         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 483         msleep(10);
 484         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 485         msleep(10);
 486
 487         dev->i2c_client.addr = 0x82 >> 1;
 488
 489         for (i = 0; i < ARRAY_SIZE(regs); i++)
 490                 i2c_master_send(&dev->i2c_client, regs[i].r, regs[i].len);
 491         em28xx_gpio_set(dev, terratec_h5_end);
 492 };
 493
 494 static void terratec_htc_stick_init(struct em28xx *dev)
 495 {
 496         int i;
 497
 498         /*
 499          * GPIO configuration:
 500          * 0xff: unknown (does not affect DVB-T).
 501          * 0xf6: DRX-K (demodulator).
 502          * 0xe6: unknown (does not affect DVB-T).
 503          * 0xb6: unknown (does not affect DVB-T).
 504          */
 505         struct em28xx_reg_seq terratec_htc_stick_init[] = {
 506                 {EM28XX_R08_GPIO,       0xff,   0xff,   10},
 507                 {EM2874_R80_GPIO,       0xf6,   0xff,   100},
 508                 {EM2874_R80_GPIO,       0xe6,   0xff,   50},
 509                 {EM2874_R80_GPIO,       0xf6,   0xff,   100},
 510                 { -1,                   -1,     -1,     -1},
 511         };
 512         struct em28xx_reg_seq terratec_htc_stick_end[] = {
 513                 {EM2874_R80_GPIO,       0xb6,   0xff,   100},
 514                 {EM2874_R80_GPIO,       0xf6,   0xff,   50},
 515                 { -1,                   -1,     -1,     -1},
 516         };
 517
 518         /* Init the analog decoder? */
 519         struct {
 520                 unsigned char r[4];
 521                 int len;
 522         } regs[] = {
 523                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 524                 {{ 0x01, 0x02 }, 2},
 525                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 526                 {{ 0x01, 0x00 }, 2},
 527                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 528         };
 529
 530         em28xx_gpio_set(dev, terratec_htc_stick_init);
 531
 532         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 533         msleep(10);
 534         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 535         msleep(10);
 536
 537         dev->i2c_client.addr = 0x82 >> 1;
 538
 539         for (i = 0; i < ARRAY_SIZE(regs); i++)
 540                 i2c_master_send(&dev->i2c_client, regs[i].r, regs[i].len);
 541
 542         em28xx_gpio_set(dev, terratec_htc_stick_end);
 543 };
 544
 545 static void pctv_520e_init(struct em28xx *dev)
 546 {
 547         /*
 548          * Init AVF4910B analog decoder. Looks like I2C traffic to
 549          * digital demodulator and tuner are routed via AVF4910B.
 550          */
 551         int i;
 552         struct {
 553                 unsigned char r[4];
 554                 int len;
 555         } regs[] = {
 556                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 557                 {{ 0x01, 0x02 }, 2},
 558                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 559                 {{ 0x01, 0x00 }, 2},
 560                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 561                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 562                 {{ 0x01, 0x00 }, 2},
 563                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 564         };
 565
 566         dev->i2c_client.addr = 0x82 >> 1; /* 0x41 */
 567
 568         for (i = 0; i < ARRAY_SIZE(regs); i++)
 569                 i2c_master_send(&dev->i2c_client, regs[i].r, regs[i].len);
 570 };
 571
 572 static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe, int val)
 573 {
 574         struct em28xx *dev = fe->dvb->priv;
 575 #ifdef CONFIG_GPIOLIB
 576         struct em28xx_dvb *dvb = dev->dvb;
 577         int ret;
 578         unsigned long flags;
 579
 580         if (val)
 581                 flags = GPIOF_OUT_INIT_LOW;
 582         else
 583                 flags = GPIOF_OUT_INIT_HIGH;
 584
 585         ret = gpio_request_one(dvb->lna_gpio, flags, NULL);
 586         if (ret)
 587                 em28xx_errdev("gpio request failed %d\n", ret);
 588         else
 589                 gpio_free(dvb->lna_gpio);
 590
 591         return ret;
 592 #else
 593         dev_warn(&dev->udev->dev, "%s: LNA control is disabled\n",
 594                         KBUILD_MODNAME);
 595         return 0;
 596 #endif
 597 }
 598
 599 static int em28xx_mt352_terratec_xs_init(struct dvb_frontend *fe)
 600 {
 601         /* Values extracted from a USB trace of the Terratec Windows driver */
 602         static u8 clock_config[]   = { CLOCK_CTL,  0x38, 0x2c };
 603         static u8 reset[]          = { RESET,      0x80 };
 604         static u8 adc_ctl_1_cfg[]  = { ADC_CTL_1,  0x40 };
 605         static u8 agc_cfg[]        = { AGC_TARGET, 0x28, 0xa0 };
 606         static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
 607         static u8 rs_err_cfg[]     = { RS_ERR_PER_1, 0x00, 0x4d };
 608         static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
 609         static u8 trl_nom_cfg[]    = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
 610         static u8 tps_given_cfg[]  = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
 611         static u8 tuner_go[]       = { TUNER_GO, 0x01};
 612
 613         mt352_write(fe, clock_config,   sizeof(clock_config));
 614         udelay(200);
 615         mt352_write(fe, reset,          sizeof(reset));
 616         mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));
 617         mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
 618         mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
 619         mt352_write(fe, rs_err_cfg,     sizeof(rs_err_cfg));
 620         mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
 621         mt352_write(fe, trl_nom_cfg,    sizeof(trl_nom_cfg));
 622         mt352_write(fe, tps_given_cfg,  sizeof(tps_given_cfg));
 623         mt352_write(fe, tuner_go,       sizeof(tuner_go));
 624         return 0;
 625 }
 626
 627 static struct mt352_config terratec_xs_mt352_cfg = {
 628         .demod_address = (0x1e >> 1),
 629         .no_tuner = 1,
 630         .if2 = 45600,
 631         .demod_init = em28xx_mt352_terratec_xs_init,
 632 };
 633
 634 static struct tda10023_config em28xx_tda10023_config = {
 635         .demod_address = 0x0c,
 636         .invert = 1,
 637 };
 638
 639 static struct cxd2820r_config em28xx_cxd2820r_config = {
 640         .i2c_address = (0xd8 >> 1),
 641         .ts_mode = CXD2820R_TS_SERIAL,
 642 };
 643
 644 static struct tda18271_config em28xx_cxd2820r_tda18271_config = {
 645         .output_opt = TDA18271_OUTPUT_LT_OFF,
 646         .gate = TDA18271_GATE_DIGITAL,
 647 };
 648
 649 static const struct tda10071_config em28xx_tda10071_config = {
 650         .i2c_address = 0x55, /* (0xaa >> 1) */
 651         .i2c_wr_max = 64,
 652         .ts_mode = TDA10071_TS_SERIAL,
 653         .spec_inv = 0,
 654         .xtal = 40444000, /* 40.444 MHz */
 655         .pll_multiplier = 20,
 656 };
 657
 658 static const struct a8293_config em28xx_a8293_config = {
 659         .i2c_addr = 0x08, /* (0x10 >> 1) */
 660 };
 661
 662 static struct zl10353_config em28xx_zl10353_no_i2c_gate_dev = {
 663         .demod_address = (0x1e >> 1),
 664         .disable_i2c_gate_ctrl = 1,
 665         .no_tuner = 1,
 666         .parallel_ts = 1,
 667 };
 668 static struct qt1010_config em28xx_qt1010_config = {
 669         .i2c_address = 0x62
 670
 671 };
 672
 673 /* ------------------------------------------------------------------ */
 674
 675 static int em28xx_attach_xc3028(u8 addr, struct em28xx *dev)
 676 {
 677         struct dvb_frontend *fe;
 678         struct xc2028_config cfg;
 679
 680         memset(&cfg, 0, sizeof(cfg));
 681         cfg.i2c_adap  = &dev->i2c_adap;
 682         cfg.i2c_addr  = addr;
 683
 684         if (!dev->dvb->fe[0]) {
 685                 em28xx_errdev("/2: dvb frontend not attached. "
 686                                 "Can't attach xc3028\n");
 687                 return -EINVAL;
 688         }
 689
 690         fe = dvb_attach(xc2028_attach, dev->dvb->fe[0], &cfg);
 691         if (!fe) {
 692                 em28xx_errdev("/2: xc3028 attach failed\n");
 693                 dvb_frontend_detach(dev->dvb->fe[0]);
 694                 dev->dvb->fe[0] = NULL;
 695                 return -EINVAL;
 696         }
 697
 698         em28xx_info("%s/2: xc3028 attached\n", dev->name);
 699
 700         return 0;
 701 }
 702
 703 /* ------------------------------------------------------------------ */
 704
 705 static int em28xx_register_dvb(struct em28xx_dvb *dvb, struct module *module,
 706                                struct em28xx *dev, struct device *device)
 707 {
 708         int result;
 709
 710         mutex_init(&dvb->lock);
 711
 712         /* register adapter */
 713         result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
 714                                       adapter_nr);
 715         if (result < 0) {
 716                 printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
 717                        dev->name, result);
 718                 goto fail_adapter;
 719         }
 720
 721         /* Ensure all frontends negotiate bus access */
 722         dvb->fe[0]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 723         if (dvb->fe[1])
 724                 dvb->fe[1]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 725
 726         dvb->adapter.priv = dev;
 727
 728         /* register frontend */
 729         result = dvb_register_frontend(&dvb->adapter, dvb->fe[0]);
 730         if (result < 0) {
 731                 printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
 732                        dev->name, result);
 733                 goto fail_frontend0;
 734         }
 735
 736         /* register 2nd frontend */
 737         if (dvb->fe[1]) {
 738                 result = dvb_register_frontend(&dvb->adapter, dvb->fe[1]);
 739                 if (result < 0) {
 740                         printk(KERN_WARNING "%s: 2nd dvb_register_frontend failed (errno = %d)\n",
 741                                 dev->name, result);
 742                         goto fail_frontend1;
 743                 }
 744         }
 745
 746         /* register demux stuff */
 747         dvb->demux.dmx.capabilities =
 748                 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 749                 DMX_MEMORY_BASED_FILTERING;
 750         dvb->demux.priv       = dvb;
 751         dvb->demux.filternum  = 256;
 752         dvb->demux.feednum    = 256;
 753         dvb->demux.start_feed = em28xx_start_feed;
 754         dvb->demux.stop_feed  = em28xx_stop_feed;
 755
 756         result = dvb_dmx_init(&dvb->demux);
 757         if (result < 0) {
 758                 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
 759                        dev->name, result);
 760                 goto fail_dmx;
 761         }
 762
 763         dvb->dmxdev.filternum    = 256;
 764         dvb->dmxdev.demux        = &dvb->demux.dmx;
 765         dvb->dmxdev.capabilities = 0;
 766         result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
 767         if (result < 0) {
 768                 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
 769                        dev->name, result);
 770                 goto fail_dmxdev;
 771         }
 772
 773         dvb->fe_hw.source = DMX_FRONTEND_0;
 774         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 775         if (result < 0) {
 776                 printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
 777                        dev->name, result);
 778                 goto fail_fe_hw;
 779         }
 780
 781         dvb->fe_mem.source = DMX_MEMORY_FE;
 782         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 783         if (result < 0) {
 784                 printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
 785                        dev->name, result);
 786                 goto fail_fe_mem;
 787         }
 788
 789         result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 790         if (result < 0) {
 791                 printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
 792                        dev->name, result);
 793                 goto fail_fe_conn;
 794         }
 795
 796         /* register network adapter */
 797         dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
 798         return 0;
 799
 800 fail_fe_conn:
 801         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 802 fail_fe_mem:
 803         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 804 fail_fe_hw:
 805         dvb_dmxdev_release(&dvb->dmxdev);
 806 fail_dmxdev:
 807         dvb_dmx_release(&dvb->demux);
 808 fail_dmx:
 809         if (dvb->fe[1])
 810                 dvb_unregister_frontend(dvb->fe[1]);
 811         dvb_unregister_frontend(dvb->fe[0]);
 812 fail_frontend1:
 813         if (dvb->fe[1])
 814                 dvb_frontend_detach(dvb->fe[1]);
 815 fail_frontend0:
 816         dvb_frontend_detach(dvb->fe[0]);
 817         dvb_unregister_adapter(&dvb->adapter);
 818 fail_adapter:
 819         return result;
 820 }
 821
 822 static void em28xx_unregister_dvb(struct em28xx_dvb *dvb)
 823 {
 824         dvb_net_release(&dvb->net);
 825         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 826         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 827         dvb_dmxdev_release(&dvb->dmxdev);
 828         dvb_dmx_release(&dvb->demux);
 829         if (dvb->fe[1])
 830                 dvb_unregister_frontend(dvb->fe[1]);
 831         dvb_unregister_frontend(dvb->fe[0]);
 832         if (dvb->fe[1] && !dvb->dont_attach_fe1)
 833                 dvb_frontend_detach(dvb->fe[1]);
 834         dvb_frontend_detach(dvb->fe[0]);
 835         dvb_unregister_adapter(&dvb->adapter);
 836 }
 837
 838 static int em28xx_dvb_init(struct em28xx *dev)
 839 {
 840         int result = 0, mfe_shared = 0;
 841         struct em28xx_dvb *dvb;
 842
 843         if (!dev->board.has_dvb) {
 844                 /* This device does not support the extension */
 845                 printk(KERN_INFO "em28xx_dvb: This device does not support the extension\n");
 846                 return 0;
 847         }
 848
 849         dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
 850
 851         if (dvb == NULL) {
 852                 em28xx_info("em28xx_dvb: memory allocation failed\n");
 853                 return -ENOMEM;
 854         }
 855         dev->dvb = dvb;
 856         dvb->fe[0] = dvb->fe[1] = NULL;
 857
 858         mutex_lock(&dev->lock);
 859         em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 860         /* init frontend */
 861         switch (dev->model) {
 862         case EM2874_BOARD_LEADERSHIP_ISDBT:
 863                 dvb->fe[0] = dvb_attach(s921_attach,
 864                                 &sharp_isdbt, &dev->i2c_adap);
 865
 866                 if (!dvb->fe[0]) {
 867                         result = -EINVAL;
 868                         goto out_free;
 869                 }
 870
 871                 break;
 872         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
 873         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
 874         case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
 875         case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
 876                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
 877                                            &em2880_lgdt3303_dev,
 878                                            &dev->i2c_adap);
 879                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
 880                         result = -EINVAL;
 881                         goto out_free;
 882                 }
 883                 break;
 884         case EM2880_BOARD_KWORLD_DVB_310U:
 885                 dvb->fe[0] = dvb_attach(zl10353_attach,
 886                                            &em28xx_zl10353_with_xc3028,
 887                                            &dev->i2c_adap);
 888                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
 889                         result = -EINVAL;
 890                         goto out_free;
 891                 }
 892                 break;
 893         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
 894         case EM2882_BOARD_TERRATEC_HYBRID_XS:
 895         case EM2880_BOARD_EMPIRE_DUAL_TV:
 896                 dvb->fe[0] = dvb_attach(zl10353_attach,
 897                                            &em28xx_zl10353_xc3028_no_i2c_gate,
 898                                            &dev->i2c_adap);
 899                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
 900                         result = -EINVAL;
 901                         goto out_free;
 902                 }
 903                 break;
 904         case EM2880_BOARD_TERRATEC_HYBRID_XS:
 905         case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
 906         case EM2881_BOARD_PINNACLE_HYBRID_PRO:
 907         case EM2882_BOARD_DIKOM_DK300:
 908         case EM2882_BOARD_KWORLD_VS_DVBT:
 909                 dvb->fe[0] = dvb_attach(zl10353_attach,
 910                                            &em28xx_zl10353_xc3028_no_i2c_gate,
 911                                            &dev->i2c_adap);
 912                 if (dvb->fe[0] == NULL) {
 913                         /* This board could have either a zl10353 or a mt352.
 914                            If the chip id isn't for zl10353, try mt352 */
 915                         dvb->fe[0] = dvb_attach(mt352_attach,
 916                                                    &terratec_xs_mt352_cfg,
 917                                                    &dev->i2c_adap);
 918                 }
 919
 920                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
 921                         result = -EINVAL;
 922                         goto out_free;
 923                 }
 924                 break;
 925         case EM2870_BOARD_KWORLD_355U:
 926                 dvb->fe[0] = dvb_attach(zl10353_attach,
 927                                            &em28xx_zl10353_no_i2c_gate_dev,
 928                                            &dev->i2c_adap);
 929                 if (dvb->fe[0] != NULL)
 930                         dvb_attach(qt1010_attach, dvb->fe[0],
 931                                    &dev->i2c_adap, &em28xx_qt1010_config);
 932                 break;
 933         case EM2883_BOARD_KWORLD_HYBRID_330U:
 934         case EM2882_BOARD_EVGA_INDTUBE:
 935                 dvb->fe[0] = dvb_attach(s5h1409_attach,
 936                                            &em28xx_s5h1409_with_xc3028,
 937                                            &dev->i2c_adap);
 938                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
 939                         result = -EINVAL;
 940                         goto out_free;
 941                 }
 942                 break;
 943         case EM2882_BOARD_KWORLD_ATSC_315U:
 944                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
 945                                            &em2880_lgdt3303_dev,
 946                                            &dev->i2c_adap);
 947                 if (dvb->fe[0] != NULL) {
 948                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
 949                                 &dev->i2c_adap, 0x61, TUNER_THOMSON_DTT761X)) {
 950                                 result = -EINVAL;
 951                                 goto out_free;
 952                         }
 953                 }
 954                 break;
 955         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
 956         case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
 957                 dvb->fe[0] = dvb_attach(drxd_attach, &em28xx_drxd, NULL,
 958                                            &dev->i2c_adap, &dev->udev->dev);
 959                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
 960                         result = -EINVAL;
 961                         goto out_free;
 962                 }
 963                 break;
 964         case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
 965                 /* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
 966                 dvb->fe[0] = dvb_attach(tda10023_attach,
 967                         &em28xx_tda10023_config,
 968                         &dev->i2c_adap, 0x48);
 969                 if (dvb->fe[0]) {
 970                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
 971                                 &dev->i2c_adap, 0x60, TUNER_PHILIPS_CU1216L)) {
 972                                 result = -EINVAL;
 973                                 goto out_free;
 974                         }
 975                 }
 976                 break;
 977         case EM2870_BOARD_KWORLD_A340:
 978                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
 979                                            &em2870_lgdt3304_dev,
 980                                            &dev->i2c_adap);
 981                 if (dvb->fe[0] != NULL)
 982                         dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
 983                                    &dev->i2c_adap, &kworld_a340_config);
 984                 break;
 985         case EM28174_BOARD_PCTV_290E:
 986                 /* set default GPIO0 for LNA, used if GPIOLIB is undefined */
 987                 dvb->lna_gpio = CXD2820R_GPIO_E | CXD2820R_GPIO_O |
 988                                 CXD2820R_GPIO_L;
 989                 dvb->fe[0] = dvb_attach(cxd2820r_attach,
 990                                         &em28xx_cxd2820r_config,
 991                                         &dev->i2c_adap,
 992                                         &dvb->lna_gpio);
 993                 if (dvb->fe[0]) {
 994                         /* FE 0 attach tuner */
 995                         if (!dvb_attach(tda18271_attach,
 996                                         dvb->fe[0],
 997                                         0x60,
 998                                         &dev->i2c_adap,
 999                                         &em28xx_cxd2820r_tda18271_config)) {
1000
1001                                 dvb_frontend_detach(dvb->fe[0]);
1002                                 result = -EINVAL;
1003                                 goto out_free;
1004                         }
1005                 }
1006
1007 #ifdef CONFIG_GPIOLIB
1008                 /* enable LNA for DVB-T, DVB-T2 and DVB-C */
1009                 result = gpio_request_one(dvb->lna_gpio, GPIOF_OUT_INIT_LOW,
1010                                 NULL);
1011                 if (result)
1012                         em28xx_errdev("gpio request failed %d\n", result);
1013                 else
1014                         gpio_free(dvb->lna_gpio);
1015
1016                 result = 0; /* continue even set LNA fails */
1017 #endif
1018                 dvb->fe[0]->ops.set_lna = em28xx_pctv_290e_set_lna;
1019                 break;
1020         case EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C:
1021         {
1022                 struct xc5000_config cfg;
1023                 hauppauge_hvr930c_init(dev);
1024
1025                 dvb->fe[0] = dvb_attach(drxk_attach,
1026                                         &hauppauge_930c_drxk, &dev->i2c_adap);
1027                 if (!dvb->fe[0]) {
1028                         result = -EINVAL;
1029                         goto out_free;
1030                 }
1031                 /* FIXME: do we need a pll semaphore? */
1032                 dvb->fe[0]->sec_priv = dvb;
1033                 sema_init(&dvb->pll_mutex, 1);
1034                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1035                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1036
1037                 /* Attach xc5000 */
1038                 memset(&cfg, 0, sizeof(cfg));
1039                 cfg.i2c_address  = 0x61;
1040                 cfg.if_khz = 4000;
1041
1042                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1043                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1044                 if (!dvb_attach(xc5000_attach, dvb->fe[0], &dev->i2c_adap,
1045                                 &cfg)) {
1046                         result = -EINVAL;
1047                         goto out_free;
1048                 }
1049                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1050                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1051
1052                 break;
1053         }
1054         case EM2884_BOARD_TERRATEC_H5:
1055                 terratec_h5_init(dev);
1056
1057                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_h5_drxk, &dev->i2c_adap);
1058                 if (!dvb->fe[0]) {
1059                         result = -EINVAL;
1060                         goto out_free;
1061                 }
1062                 /* FIXME: do we need a pll semaphore? */
1063                 dvb->fe[0]->sec_priv = dvb;
1064                 sema_init(&dvb->pll_mutex, 1);
1065                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
1066                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
1067
1068                 /* Attach tda18271 to DVB-C frontend */
1069                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1070                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
1071                 if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0], &dev->i2c_adap, 0x60)) {
1072                         result = -EINVAL;
1073                         goto out_free;
1074                 }
1075                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
1076                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
1077
1078                 break;
1079         case EM28174_BOARD_PCTV_460E:
1080                 /* attach demod */
1081                 dvb->fe[0] = dvb_attach(tda10071_attach,
1082                         &em28xx_tda10071_config, &dev->i2c_adap);
1083
1084                 /* attach SEC */
1085                 if (dvb->fe[0])
1086                         dvb_attach(a8293_attach, dvb->fe[0], &dev->i2c_adap,
1087                                 &em28xx_a8293_config);
1088                 break;
1089         case EM2874_BOARD_MAXMEDIA_UB425_TC:
1090                 /* attach demodulator */
1091                 dvb->fe[0] = dvb_attach(drxk_attach, &maxmedia_ub425_tc_drxk,
1092                                 &dev->i2c_adap);
1093
1094                 if (dvb->fe[0]) {
1095                         /* disable I2C-gate */
1096                         dvb->fe[0]->ops.i2c_gate_ctrl = NULL;
1097
1098                         /* attach tuner */
1099                         if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0],
1100                                         &dev->i2c_adap, 0x60)) {
1101                                 dvb_frontend_detach(dvb->fe[0]);
1102                                 result = -EINVAL;
1103                                 goto out_free;
1104                         }
1105                 }
1106
1107                 /* TODO: we need drx-3913k firmware in order to support DVB-T */
1108                 em28xx_info("MaxMedia UB425-TC: only DVB-C supported by that " \
1109                                 "driver version\n");
1110
1111                 break;
1112         case EM2884_BOARD_PCTV_510E:
1113         case EM2884_BOARD_PCTV_520E:
1114                 pctv_520e_init(dev);
1115
1116                 /* attach demodulator */
1117                 dvb->fe[0] = dvb_attach(drxk_attach, &pctv_520e_drxk,
1118                                 &dev->i2c_adap);
1119
1120                 if (dvb->fe[0]) {
1121                         /* attach tuner */
1122                         if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1123                                         &dev->i2c_adap,
1124                                         &em28xx_cxd2820r_tda18271_config)) {
1125                                 dvb_frontend_detach(dvb->fe[0]);
1126                                 result = -EINVAL;
1127                                 goto out_free;
1128                         }
1129                 }
1130                 break;
1131         case EM2884_BOARD_CINERGY_HTC_STICK:
1132                 terratec_htc_stick_init(dev);
1133
1134                 /* attach demodulator */
1135                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_htc_stick_drxk,
1136                                         &dev->i2c_adap);
1137                 if (!dvb->fe[0]) {
1138                         result = -EINVAL;
1139                         goto out_free;
1140                 }
1141
1142                 /* Attach the demodulator. */
1143                 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1144                                 &dev->i2c_adap,
1145                                 &em28xx_cxd2820r_tda18271_config)) {
1146                         result = -EINVAL;
1147                         goto out_free;
1148                 }
1149                 break;
1150         default:
1151                 em28xx_errdev("/2: The frontend of your DVB/ATSC card"
1152                                 " isn't supported yet\n");
1153                 break;
1154         }
1155         if (NULL == dvb->fe[0]) {
1156                 em28xx_errdev("/2: frontend initialization failed\n");
1157                 result = -EINVAL;
1158                 goto out_free;
1159         }
1160         /* define general-purpose callback pointer */
1161         dvb->fe[0]->callback = em28xx_tuner_callback;
1162         if (dvb->fe[1])
1163                 dvb->fe[1]->callback = em28xx_tuner_callback;
1164
1165         /* register everything */
1166         result = em28xx_register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
1167
1168         if (result < 0)
1169                 goto out_free;
1170
1171         /* MFE lock */
1172         dvb->adapter.mfe_shared = mfe_shared;
1173
1174         em28xx_info("Successfully loaded em28xx-dvb\n");
1175 ret:
1176         em28xx_set_mode(dev, EM28XX_SUSPEND);
1177         mutex_unlock(&dev->lock);
1178         return result;
1179
1180 out_free:
1181         kfree(dvb);
1182         dev->dvb = NULL;
1183         goto ret;
1184 }
1185
1186 static inline void prevent_sleep(struct dvb_frontend_ops *ops)
1187 {
1188         ops->set_voltage = NULL;
1189         ops->sleep = NULL;
1190         ops->tuner_ops.sleep = NULL;
1191 }
1192
1193 static int em28xx_dvb_fini(struct em28xx *dev)
1194 {
1195         if (!dev->board.has_dvb) {
1196                 /* This device does not support the extension */
1197                 return 0;
1198         }
1199
1200         if (dev->dvb) {
1201                 struct em28xx_dvb *dvb = dev->dvb;
1202
1203                 if (dev->state & DEV_DISCONNECTED) {
1204                         /* We cannot tell the device to sleep
1205                          * once it has been unplugged. */
1206                         if (dvb->fe[0])
1207                                 prevent_sleep(&dvb->fe[0]->ops);
1208                         if (dvb->fe[1])
1209                                 prevent_sleep(&dvb->fe[1]->ops);
1210                 }
1211
1212                 em28xx_unregister_dvb(dvb);
1213                 kfree(dvb);
1214                 dev->dvb = NULL;
1215         }
1216
1217         return 0;
1218 }
1219
1220 static struct em28xx_ops dvb_ops = {
1221         .id   = EM28XX_DVB,
1222         .name = "Em28xx dvb Extension",
1223         .init = em28xx_dvb_init,
1224         .fini = em28xx_dvb_fini,
1225 };
1226
1227 static int __init em28xx_dvb_register(void)
1228 {
1229         return em28xx_register_extension(&dvb_ops);
1230 }
1231
1232 static void __exit em28xx_dvb_unregister(void)
1233 {
1234         em28xx_unregister_extension(&dvb_ops);
1235 }
1236
1237 module_init(em28xx_dvb_register);
1238 module_exit(em28xx_dvb_unregister);