drivers/media/dvb-frontends/nxt6000.c

   1 /*
   2         NxtWave Communications - NXT6000 demodulator driver
   3
   4     Copyright (C) 2002-2003 Florian Schirmer <jolt@tuxbox.org>
   5     Copyright (C) 2003 Paul Andreassen <paul@andreassen.com.au>
   6
   7     This program is free software; you can redistribute it and/or modify
   8     it under the terms of the GNU General Public License as published by
   9     the Free Software Foundation; either version 2 of the License, or
  10     (at your option) any later version.
  11
  12     This program is distributed in the hope that it will be useful,
  13     but WITHOUT ANY WARRANTY; without even the implied warranty of
  14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15     GNU General Public License for more details.
  16
  17     You should have received a copy of the GNU General Public License
  18     along with this program; if not, write to the Free Software
  19     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  23
  24 #include <linux/init.h>
  25 #include <linux/kernel.h>
  26 #include <linux/module.h>
  27 #include <linux/string.h>
  28 #include <linux/slab.h>
  29
  30 #include <media/dvb_frontend.h>
  31 #include "nxt6000_priv.h"
  32 #include "nxt6000.h"
  33
  34
  35
  36 struct nxt6000_state {
  37         struct i2c_adapter* i2c;
  38         /* configuration settings */
  39         const struct nxt6000_config* config;
  40         struct dvb_frontend frontend;
  41 };
  42
  43 static int debug;
  44 #define dprintk(fmt, arg...) do {                                       \
  45         if (debug)                                                      \
  46                 printk(KERN_DEBUG pr_fmt("%s: " fmt),                   \
  47                        __func__, ##arg);                                \
  48 } while (0)
  49
  50 static int nxt6000_writereg(struct nxt6000_state* state, u8 reg, u8 data)
  51 {
  52         u8 buf[] = { reg, data };
  53         struct i2c_msg msg = {.addr = state->config->demod_address,.flags = 0,.buf = buf,.len = 2 };
  54         int ret;
  55
  56         if ((ret = i2c_transfer(state->i2c, &msg, 1)) != 1)
  57                 dprintk("nxt6000: nxt6000_write error (reg: 0x%02X, data: 0x%02X, ret: %d)\n", reg, data, ret);
  58
  59         return (ret != 1) ? -EIO : 0;
  60 }
  61
  62 static u8 nxt6000_readreg(struct nxt6000_state* state, u8 reg)
  63 {
  64         int ret;
  65         u8 b0[] = { reg };
  66         u8 b1[] = { 0 };
  67         struct i2c_msg msgs[] = {
  68                 {.addr = state->config->demod_address,.flags = 0,.buf = b0,.len = 1},
  69                 {.addr = state->config->demod_address,.flags = I2C_M_RD,.buf = b1,.len = 1}
  70         };
  71
  72         ret = i2c_transfer(state->i2c, msgs, 2);
  73
  74         if (ret != 2)
  75                 dprintk("nxt6000: nxt6000_read error (reg: 0x%02X, ret: %d)\n", reg, ret);
  76
  77         return b1[0];
  78 }
  79
  80 static void nxt6000_reset(struct nxt6000_state* state)
  81 {
  82         u8 val;
  83
  84         val = nxt6000_readreg(state, OFDM_COR_CTL);
  85
  86         nxt6000_writereg(state, OFDM_COR_CTL, val & ~COREACT);
  87         nxt6000_writereg(state, OFDM_COR_CTL, val | COREACT);
  88 }
  89
  90 static int nxt6000_set_bandwidth(struct nxt6000_state *state, u32 bandwidth)
  91 {
  92         u16 nominal_rate;
  93         int result;
  94
  95         switch (bandwidth) {
  96         case 6000000:
  97                 nominal_rate = 0x55B7;
  98                 break;
  99
 100         case 7000000:
 101                 nominal_rate = 0x6400;
 102                 break;
 103
 104         case 8000000:
 105                 nominal_rate = 0x7249;
 106                 break;
 107
 108         default:
 109                 return -EINVAL;
 110         }
 111
 112         if ((result = nxt6000_writereg(state, OFDM_TRL_NOMINALRATE_1, nominal_rate & 0xFF)) < 0)
 113                 return result;
 114
 115         return nxt6000_writereg(state, OFDM_TRL_NOMINALRATE_2, (nominal_rate >> 8) & 0xFF);
 116 }
 117
 118 static int nxt6000_set_guard_interval(struct nxt6000_state *state,
 119                                       enum fe_guard_interval guard_interval)
 120 {
 121         switch (guard_interval) {
 122
 123         case GUARD_INTERVAL_1_32:
 124                 return nxt6000_writereg(state, OFDM_COR_MODEGUARD, 0x00 | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x03));
 125
 126         case GUARD_INTERVAL_1_16:
 127                 return nxt6000_writereg(state, OFDM_COR_MODEGUARD, 0x01 | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x03));
 128
 129         case GUARD_INTERVAL_AUTO:
 130         case GUARD_INTERVAL_1_8:
 131                 return nxt6000_writereg(state, OFDM_COR_MODEGUARD, 0x02 | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x03));
 132
 133         case GUARD_INTERVAL_1_4:
 134                 return nxt6000_writereg(state, OFDM_COR_MODEGUARD, 0x03 | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x03));
 135
 136         default:
 137                 return -EINVAL;
 138         }
 139 }
 140
 141 static int nxt6000_set_inversion(struct nxt6000_state *state,
 142                                  enum fe_spectral_inversion inversion)
 143 {
 144         switch (inversion) {
 145
 146         case INVERSION_OFF:
 147                 return nxt6000_writereg(state, OFDM_ITB_CTL, 0x00);
 148
 149         case INVERSION_ON:
 150                 return nxt6000_writereg(state, OFDM_ITB_CTL, ITBINV);
 151
 152         default:
 153                 return -EINVAL;
 154
 155         }
 156 }
 157
 158 static int
 159 nxt6000_set_transmission_mode(struct nxt6000_state *state,
 160                               enum fe_transmit_mode transmission_mode)
 161 {
 162         int result;
 163
 164         switch (transmission_mode) {
 165
 166         case TRANSMISSION_MODE_2K:
 167                 if ((result = nxt6000_writereg(state, EN_DMD_RACQ, 0x00 | (nxt6000_readreg(state, EN_DMD_RACQ) & ~0x03))) < 0)
 168                         return result;
 169
 170                 return nxt6000_writereg(state, OFDM_COR_MODEGUARD, (0x00 << 2) | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x04));
 171
 172         case TRANSMISSION_MODE_8K:
 173         case TRANSMISSION_MODE_AUTO:
 174                 if ((result = nxt6000_writereg(state, EN_DMD_RACQ, 0x02 | (nxt6000_readreg(state, EN_DMD_RACQ) & ~0x03))) < 0)
 175                         return result;
 176
 177                 return nxt6000_writereg(state, OFDM_COR_MODEGUARD, (0x01 << 2) | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x04));
 178
 179         default:
 180                 return -EINVAL;
 181
 182         }
 183 }
 184
 185 static void nxt6000_setup(struct dvb_frontend* fe)
 186 {
 187         struct nxt6000_state* state = fe->demodulator_priv;
 188
 189         nxt6000_writereg(state, RS_COR_SYNC_PARAM, SYNC_PARAM);
 190         nxt6000_writereg(state, BER_CTRL, /*(1 << 2) | */ (0x01 << 1) | 0x01);
 191         nxt6000_writereg(state, VIT_BERTIME_2, 0x00);  // BER Timer = 0x000200 * 256 = 131072 bits
 192         nxt6000_writereg(state, VIT_BERTIME_1, 0x02);  //
 193         nxt6000_writereg(state, VIT_BERTIME_0, 0x00);  //
 194         nxt6000_writereg(state, VIT_COR_INTEN, 0x98); // Enable BER interrupts
 195         nxt6000_writereg(state, VIT_COR_CTL, 0x82);   // Enable BER measurement
 196         nxt6000_writereg(state, VIT_COR_CTL, VIT_COR_RESYNC | 0x02 );
 197         nxt6000_writereg(state, OFDM_COR_CTL, (0x01 << 5) | (nxt6000_readreg(state, OFDM_COR_CTL) & 0x0F));
 198         nxt6000_writereg(state, OFDM_COR_MODEGUARD, FORCEMODE8K | 0x02);
 199         nxt6000_writereg(state, OFDM_AGC_CTL, AGCLAST | INITIAL_AGC_BW);
 200         nxt6000_writereg(state, OFDM_ITB_FREQ_1, 0x06);
 201         nxt6000_writereg(state, OFDM_ITB_FREQ_2, 0x31);
 202         nxt6000_writereg(state, OFDM_CAS_CTL, (0x01 << 7) | (0x02 << 3) | 0x04);
 203         nxt6000_writereg(state, CAS_FREQ, 0xBB);        /* CHECKME */
 204         nxt6000_writereg(state, OFDM_SYR_CTL, 1 << 2);
 205         nxt6000_writereg(state, OFDM_PPM_CTL_1, PPM256);
 206         nxt6000_writereg(state, OFDM_TRL_NOMINALRATE_1, 0x49);
 207         nxt6000_writereg(state, OFDM_TRL_NOMINALRATE_2, 0x72);
 208         nxt6000_writereg(state, ANALOG_CONTROL_0, 1 << 5);
 209         nxt6000_writereg(state, EN_DMD_RACQ, (1 << 7) | (3 << 4) | 2);
 210         nxt6000_writereg(state, DIAG_CONFIG, TB_SET);
 211
 212         if (state->config->clock_inversion)
 213                 nxt6000_writereg(state, SUB_DIAG_MODE_SEL, CLKINVERSION);
 214         else
 215                 nxt6000_writereg(state, SUB_DIAG_MODE_SEL, 0);
 216
 217         nxt6000_writereg(state, TS_FORMAT, 0);
 218 }
 219
 220 static void nxt6000_dump_status(struct nxt6000_state *state)
 221 {
 222         u8 val;
 223
 224 #if 0
 225         pr_info("RS_COR_STAT: 0x%02X\n",
 226                 nxt6000_readreg(fe, RS_COR_STAT));
 227         pr_info("VIT_SYNC_STATUS: 0x%02X\n",
 228                 nxt6000_readreg(fe, VIT_SYNC_STATUS));
 229         pr_info("OFDM_COR_STAT: 0x%02X\n",
 230                 nxt6000_readreg(fe, OFDM_COR_STAT));
 231         pr_info("OFDM_SYR_STAT: 0x%02X\n",
 232                 nxt6000_readreg(fe, OFDM_SYR_STAT));
 233         pr_info("OFDM_TPS_RCVD_1: 0x%02X\n",
 234                 nxt6000_readreg(fe, OFDM_TPS_RCVD_1));
 235         pr_info("OFDM_TPS_RCVD_2: 0x%02X\n",
 236                 nxt6000_readreg(fe, OFDM_TPS_RCVD_2));
 237         pr_info("OFDM_TPS_RCVD_3: 0x%02X\n",
 238                 nxt6000_readreg(fe, OFDM_TPS_RCVD_3));
 239         pr_info("OFDM_TPS_RCVD_4: 0x%02X\n",
 240                 nxt6000_readreg(fe, OFDM_TPS_RCVD_4));
 241         pr_info("OFDM_TPS_RESERVED_1: 0x%02X\n",
 242                 nxt6000_readreg(fe, OFDM_TPS_RESERVED_1));
 243         pr_info("OFDM_TPS_RESERVED_2: 0x%02X\n",
 244                 nxt6000_readreg(fe, OFDM_TPS_RESERVED_2));
 245 #endif
 246         pr_info("NXT6000 status:");
 247
 248         val = nxt6000_readreg(state, RS_COR_STAT);
 249
 250         pr_cont(" DATA DESCR LOCK: %d,", val & 0x01);
 251         pr_cont(" DATA SYNC LOCK: %d,", (val >> 1) & 0x01);
 252
 253         val = nxt6000_readreg(state, VIT_SYNC_STATUS);
 254
 255         pr_cont(" VITERBI LOCK: %d,", (val >> 7) & 0x01);
 256
 257         switch ((val >> 4) & 0x07) {
 258
 259         case 0x00:
 260                 pr_cont(" VITERBI CODERATE: 1/2,");
 261                 break;
 262
 263         case 0x01:
 264                 pr_cont(" VITERBI CODERATE: 2/3,");
 265                 break;
 266
 267         case 0x02:
 268                 pr_cont(" VITERBI CODERATE: 3/4,");
 269                 break;
 270
 271         case 0x03:
 272                 pr_cont(" VITERBI CODERATE: 5/6,");
 273                 break;
 274
 275         case 0x04:
 276                 pr_cont(" VITERBI CODERATE: 7/8,");
 277                 break;
 278
 279         default:
 280                 pr_cont(" VITERBI CODERATE: Reserved,");
 281
 282         }
 283
 284         val = nxt6000_readreg(state, OFDM_COR_STAT);
 285
 286         pr_cont(" CHCTrack: %d,", (val >> 7) & 0x01);
 287         pr_cont(" TPSLock: %d,", (val >> 6) & 0x01);
 288         pr_cont(" SYRLock: %d,", (val >> 5) & 0x01);
 289         pr_cont(" AGCLock: %d,", (val >> 4) & 0x01);
 290
 291         switch (val & 0x0F) {
 292
 293         case 0x00:
 294                 pr_cont(" CoreState: IDLE,");
 295                 break;
 296
 297         case 0x02:
 298                 pr_cont(" CoreState: WAIT_AGC,");
 299                 break;
 300
 301         case 0x03:
 302                 pr_cont(" CoreState: WAIT_SYR,");
 303                 break;
 304
 305         case 0x04:
 306                 pr_cont(" CoreState: WAIT_PPM,");
 307                 break;
 308
 309         case 0x01:
 310                 pr_cont(" CoreState: WAIT_TRL,");
 311                 break;
 312
 313         case 0x05:
 314                 pr_cont(" CoreState: WAIT_TPS,");
 315                 break;
 316
 317         case 0x06:
 318                 pr_cont(" CoreState: MONITOR_TPS,");
 319                 break;
 320
 321         default:
 322                 pr_cont(" CoreState: Reserved,");
 323
 324         }
 325
 326         val = nxt6000_readreg(state, OFDM_SYR_STAT);
 327
 328         pr_cont(" SYRLock: %d,", (val >> 4) & 0x01);
 329         pr_cont(" SYRMode: %s,", (val >> 2) & 0x01 ? "8K" : "2K");
 330
 331         switch ((val >> 4) & 0x03) {
 332
 333         case 0x00:
 334                 pr_cont(" SYRGuard: 1/32,");
 335                 break;
 336
 337         case 0x01:
 338                 pr_cont(" SYRGuard: 1/16,");
 339                 break;
 340
 341         case 0x02:
 342                 pr_cont(" SYRGuard: 1/8,");
 343                 break;
 344
 345         case 0x03:
 346                 pr_cont(" SYRGuard: 1/4,");
 347                 break;
 348         }
 349
 350         val = nxt6000_readreg(state, OFDM_TPS_RCVD_3);
 351
 352         switch ((val >> 4) & 0x07) {
 353
 354         case 0x00:
 355                 pr_cont(" TPSLP: 1/2,");
 356                 break;
 357
 358         case 0x01:
 359                 pr_cont(" TPSLP: 2/3,");
 360                 break;
 361
 362         case 0x02:
 363                 pr_cont(" TPSLP: 3/4,");
 364                 break;
 365
 366         case 0x03:
 367                 pr_cont(" TPSLP: 5/6,");
 368                 break;
 369
 370         case 0x04:
 371                 pr_cont(" TPSLP: 7/8,");
 372                 break;
 373
 374         default:
 375                 pr_cont(" TPSLP: Reserved,");
 376
 377         }
 378
 379         switch (val & 0x07) {
 380
 381         case 0x00:
 382                 pr_cont(" TPSHP: 1/2,");
 383                 break;
 384
 385         case 0x01:
 386                 pr_cont(" TPSHP: 2/3,");
 387                 break;
 388
 389         case 0x02:
 390                 pr_cont(" TPSHP: 3/4,");
 391                 break;
 392
 393         case 0x03:
 394                 pr_cont(" TPSHP: 5/6,");
 395                 break;
 396
 397         case 0x04:
 398                 pr_cont(" TPSHP: 7/8,");
 399                 break;
 400
 401         default:
 402                 pr_cont(" TPSHP: Reserved,");
 403
 404         }
 405
 406         val = nxt6000_readreg(state, OFDM_TPS_RCVD_4);
 407
 408         pr_cont(" TPSMode: %s,", val & 0x01 ? "8K" : "2K");
 409
 410         switch ((val >> 4) & 0x03) {
 411
 412         case 0x00:
 413                 pr_cont(" TPSGuard: 1/32,");
 414                 break;
 415
 416         case 0x01:
 417                 pr_cont(" TPSGuard: 1/16,");
 418                 break;
 419
 420         case 0x02:
 421                 pr_cont(" TPSGuard: 1/8,");
 422                 break;
 423
 424         case 0x03:
 425                 pr_cont(" TPSGuard: 1/4,");
 426                 break;
 427
 428         }
 429
 430         /* Strange magic required to gain access to RF_AGC_STATUS */
 431         nxt6000_readreg(state, RF_AGC_VAL_1);
 432         val = nxt6000_readreg(state, RF_AGC_STATUS);
 433         val = nxt6000_readreg(state, RF_AGC_STATUS);
 434
 435         pr_cont(" RF AGC LOCK: %d,", (val >> 4) & 0x01);
 436         pr_cont("\n");
 437 }
 438
 439 static int nxt6000_read_status(struct dvb_frontend *fe, enum fe_status *status)
 440 {
 441         u8 core_status;
 442         struct nxt6000_state* state = fe->demodulator_priv;
 443
 444         *status = 0;
 445
 446         core_status = nxt6000_readreg(state, OFDM_COR_STAT);
 447
 448         if (core_status & AGCLOCKED)
 449                 *status |= FE_HAS_SIGNAL;
 450
 451         if (nxt6000_readreg(state, OFDM_SYR_STAT) & GI14_SYR_LOCK)
 452                 *status |= FE_HAS_CARRIER;
 453
 454         if (nxt6000_readreg(state, VIT_SYNC_STATUS) & VITINSYNC)
 455                 *status |= FE_HAS_VITERBI;
 456
 457         if (nxt6000_readreg(state, RS_COR_STAT) & RSCORESTATUS)
 458                 *status |= FE_HAS_SYNC;
 459
 460         if ((core_status & TPSLOCKED) && (*status == (FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC)))
 461                 *status |= FE_HAS_LOCK;
 462
 463         if (debug)
 464                 nxt6000_dump_status(state);
 465
 466         return 0;
 467 }
 468
 469 static int nxt6000_init(struct dvb_frontend* fe)
 470 {
 471         struct nxt6000_state* state = fe->demodulator_priv;
 472
 473         nxt6000_reset(state);
 474         nxt6000_setup(fe);
 475
 476         return 0;
 477 }
 478
 479 static int nxt6000_set_frontend(struct dvb_frontend *fe)
 480 {
 481         struct dtv_frontend_properties *p = &fe->dtv_property_cache;
 482         struct nxt6000_state* state = fe->demodulator_priv;
 483         int result;
 484
 485         if (fe->ops.tuner_ops.set_params) {
 486                 fe->ops.tuner_ops.set_params(fe);
 487                 if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
 488         }
 489
 490         result = nxt6000_set_bandwidth(state, p->bandwidth_hz);
 491         if (result < 0)
 492                 return result;
 493
 494         result = nxt6000_set_guard_interval(state, p->guard_interval);
 495         if (result < 0)
 496                 return result;
 497
 498         result = nxt6000_set_transmission_mode(state, p->transmission_mode);
 499         if (result < 0)
 500                 return result;
 501
 502         result = nxt6000_set_inversion(state, p->inversion);
 503         if (result < 0)
 504                 return result;
 505
 506         msleep(500);
 507         return 0;
 508 }
 509
 510 static void nxt6000_release(struct dvb_frontend* fe)
 511 {
 512         struct nxt6000_state* state = fe->demodulator_priv;
 513         kfree(state);
 514 }
 515
 516 static int nxt6000_read_snr(struct dvb_frontend* fe, u16* snr)
 517 {
 518         struct nxt6000_state* state = fe->demodulator_priv;
 519
 520         *snr = nxt6000_readreg( state, OFDM_CHC_SNR) / 8;
 521
 522         return 0;
 523 }
 524
 525 static int nxt6000_read_ber(struct dvb_frontend* fe, u32* ber)
 526 {
 527         struct nxt6000_state* state = fe->demodulator_priv;
 528
 529         nxt6000_writereg( state, VIT_COR_INTSTAT, 0x18 );
 530
 531         *ber = (nxt6000_readreg( state, VIT_BER_1 ) << 8 ) |
 532                 nxt6000_readreg( state, VIT_BER_0 );
 533
 534         nxt6000_writereg( state, VIT_COR_INTSTAT, 0x18); // Clear BER Done interrupts
 535
 536         return 0;
 537 }
 538
 539 static int nxt6000_read_signal_strength(struct dvb_frontend* fe, u16* signal_strength)
 540 {
 541         struct nxt6000_state* state = fe->demodulator_priv;
 542
 543         *signal_strength = (short) (511 -
 544                 (nxt6000_readreg(state, AGC_GAIN_1) +
 545                 ((nxt6000_readreg(state, AGC_GAIN_2) & 0x03) << 8)));
 546
 547         return 0;
 548 }
 549
 550 static int nxt6000_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune)
 551 {
 552         tune->min_delay_ms = 500;
 553         return 0;
 554 }
 555
 556 static int nxt6000_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
 557 {
 558         struct nxt6000_state* state = fe->demodulator_priv;
 559
 560         if (enable) {
 561                 return nxt6000_writereg(state, ENABLE_TUNER_IIC, 0x01);
 562         } else {
 563                 return nxt6000_writereg(state, ENABLE_TUNER_IIC, 0x00);
 564         }
 565 }
 566
 567 static const struct dvb_frontend_ops nxt6000_ops;
 568
 569 struct dvb_frontend* nxt6000_attach(const struct nxt6000_config* config,
 570                                     struct i2c_adapter* i2c)
 571 {
 572         struct nxt6000_state* state = NULL;
 573
 574         /* allocate memory for the internal state */
 575         state = kzalloc(sizeof(struct nxt6000_state), GFP_KERNEL);
 576         if (state == NULL) goto error;
 577
 578         /* setup the state */
 579         state->config = config;
 580         state->i2c = i2c;
 581
 582         /* check if the demod is there */
 583         if (nxt6000_readreg(state, OFDM_MSC_REV) != NXT6000ASICDEVICE) goto error;
 584
 585         /* create dvb_frontend */
 586         memcpy(&state->frontend.ops, &nxt6000_ops, sizeof(struct dvb_frontend_ops));
 587         state->frontend.demodulator_priv = state;
 588         return &state->frontend;
 589
 590 error:
 591         kfree(state);
 592         return NULL;
 593 }
 594
 595 static const struct dvb_frontend_ops nxt6000_ops = {
 596         .delsys = { SYS_DVBT },
 597         .info = {
 598                 .name = "NxtWave NXT6000 DVB-T",
 599                 .frequency_min_hz = 0,
 600                 .frequency_max_hz = 863250 * kHz,
 601                 .frequency_stepsize_hz = 62500,
 602                 /*.frequency_tolerance = *//* FIXME: 12% of SR */
 603                 .symbol_rate_min = 0,   /* FIXME */
 604                 .symbol_rate_max = 9360000,     /* FIXME */
 605                 .symbol_rate_tolerance = 4000,
 606                 .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
 607                         FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 |
 608                         FE_CAN_FEC_7_8 | FE_CAN_FEC_8_9 | FE_CAN_FEC_AUTO |
 609                         FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
 610                         FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO |
 611                         FE_CAN_HIERARCHY_AUTO,
 612         },
 613
 614         .release = nxt6000_release,
 615
 616         .init = nxt6000_init,
 617         .i2c_gate_ctrl = nxt6000_i2c_gate_ctrl,
 618
 619         .get_tune_settings = nxt6000_fe_get_tune_settings,
 620
 621         .set_frontend = nxt6000_set_frontend,
 622
 623         .read_status = nxt6000_read_status,
 624         .read_ber = nxt6000_read_ber,
 625         .read_signal_strength = nxt6000_read_signal_strength,
 626         .read_snr = nxt6000_read_snr,
 627 };
 628
 629 module_param(debug, int, 0644);
 630 MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
 631
 632 MODULE_DESCRIPTION("NxtWave NXT6000 DVB-T demodulator driver");
 633 MODULE_AUTHOR("Florian Schirmer");
 634 MODULE_LICENSE("GPL");
 635
 636 EXPORT_SYMBOL(nxt6000_attach);