drivers/media/dvb-frontends/stv6111.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Driver for the ST STV6111 tuner
   4  *
   5  * Copyright (C) 2014 Digital Devices GmbH
   6  */
   7
   8 #include <linux/kernel.h>
   9 #include <linux/module.h>
  10 #include <linux/moduleparam.h>
  11 #include <linux/init.h>
  12 #include <linux/delay.h>
  13 #include <linux/firmware.h>
  14 #include <linux/i2c.h>
  15 #include <asm/div64.h>
  16
  17 #include "stv6111.h"
  18
  19 #include <media/dvb_frontend.h>
  20
  21 struct stv {
  22         struct i2c_adapter *i2c;
  23         u8 adr;
  24
  25         u8 reg[11];
  26         u32 ref_freq;
  27         u32 frequency;
  28 };
  29
  30 struct slookup {
  31         s16 value;
  32         u16 reg_value;
  33 };
  34
  35 static const struct slookup lnagain_nf_lookup[] = {
  36         /* Gain *100dB // Reg */
  37         { 2572, 0 },
  38         { 2575, 1 },
  39         { 2580, 2 },
  40         { 2588, 3 },
  41         { 2596, 4 },
  42         { 2611, 5 },
  43         { 2633, 6 },
  44         { 2664, 7 },
  45         { 2701, 8 },
  46         { 2753, 9 },
  47         { 2816, 10 },
  48         { 2902, 11 },
  49         { 2995, 12 },
  50         { 3104, 13 },
  51         { 3215, 14 },
  52         { 3337, 15 },
  53         { 3492, 16 },
  54         { 3614, 17 },
  55         { 3731, 18 },
  56         { 3861, 19 },
  57         { 3988, 20 },
  58         { 4124, 21 },
  59         { 4253, 22 },
  60         { 4386, 23 },
  61         { 4505, 24 },
  62         { 4623, 25 },
  63         { 4726, 26 },
  64         { 4821, 27 },
  65         { 4903, 28 },
  66         { 4979, 29 },
  67         { 5045, 30 },
  68         { 5102, 31 }
  69 };
  70
  71 static const struct slookup lnagain_iip3_lookup[] = {
  72         /* Gain *100dB // reg */
  73         { 1548, 0 },
  74         { 1552, 1 },
  75         { 1569, 2 },
  76         { 1565, 3 },
  77         { 1577, 4 },
  78         { 1594, 5 },
  79         { 1627, 6 },
  80         { 1656, 7 },
  81         { 1700, 8 },
  82         { 1748, 9 },
  83         { 1805, 10 },
  84         { 1896, 11 },
  85         { 1995, 12 },
  86         { 2113, 13 },
  87         { 2233, 14 },
  88         { 2366, 15 },
  89         { 2543, 16 },
  90         { 2687, 17 },
  91         { 2842, 18 },
  92         { 2999, 19 },
  93         { 3167, 20 },
  94         { 3342, 21 },
  95         { 3507, 22 },
  96         { 3679, 23 },
  97         { 3827, 24 },
  98         { 3970, 25 },
  99         { 4094, 26 },
 100         { 4210, 27 },
 101         { 4308, 28 },
 102         { 4396, 29 },
 103         { 4468, 30 },
 104         { 4535, 31 }
 105 };
 106
 107 static const struct slookup gain_rfagc_lookup[] = {
 108         /* Gain *100dB // reg */
 109         { 4870, 0x3000 },
 110         { 4850, 0x3C00 },
 111         { 4800, 0x4500 },
 112         { 4750, 0x4800 },
 113         { 4700, 0x4B00 },
 114         { 4650, 0x4D00 },
 115         { 4600, 0x4F00 },
 116         { 4550, 0x5100 },
 117         { 4500, 0x5200 },
 118         { 4420, 0x5500 },
 119         { 4316, 0x5800 },
 120         { 4200, 0x5B00 },
 121         { 4119, 0x5D00 },
 122         { 3999, 0x6000 },
 123         { 3950, 0x6100 },
 124         { 3876, 0x6300 },
 125         { 3755, 0x6600 },
 126         { 3641, 0x6900 },
 127         { 3567, 0x6B00 },
 128         { 3425, 0x6F00 },
 129         { 3350, 0x7100 },
 130         { 3236, 0x7400 },
 131         { 3118, 0x7700 },
 132         { 3004, 0x7A00 },
 133         { 2917, 0x7C00 },
 134         { 2776, 0x7F00 },
 135         { 2635, 0x8200 },
 136         { 2516, 0x8500 },
 137         { 2406, 0x8800 },
 138         { 2290, 0x8B00 },
 139         { 2170, 0x8E00 },
 140         { 2073, 0x9100 },
 141         { 1949, 0x9400 },
 142         { 1836, 0x9700 },
 143         { 1712, 0x9A00 },
 144         { 1631, 0x9C00 },
 145         { 1515, 0x9F00 },
 146         { 1400, 0xA200 },
 147         { 1323, 0xA400 },
 148         { 1203, 0xA700 },
 149         { 1091, 0xAA00 },
 150         { 1011, 0xAC00 },
 151         { 904,  0xAF00 },
 152         { 787,  0xB200 },
 153         { 685,  0xB500 },
 154         { 571,  0xB800 },
 155         { 464,  0xBB00 },
 156         { 374,  0xBE00 },
 157         { 275,  0xC200 },
 158         { 181,  0xC600 },
 159         { 102,  0xCC00 },
 160         { 49,   0xD900 }
 161 };
 162
 163 /*
 164  * This table is 6 dB too low comapred to the others (probably created with
 165  * a different BB_MAG setting)
 166  */
 167 static const struct slookup gain_channel_agc_nf_lookup[] = {
 168         /* Gain *100dB // reg */
 169         { 7082, 0x3000 },
 170         { 7052, 0x4000 },
 171         { 7007, 0x4600 },
 172         { 6954, 0x4A00 },
 173         { 6909, 0x4D00 },
 174         { 6833, 0x5100 },
 175         { 6753, 0x5400 },
 176         { 6659, 0x5700 },
 177         { 6561, 0x5A00 },
 178         { 6472, 0x5C00 },
 179         { 6366, 0x5F00 },
 180         { 6259, 0x6100 },
 181         { 6151, 0x6400 },
 182         { 6026, 0x6700 },
 183         { 5920, 0x6900 },
 184         { 5835, 0x6B00 },
 185         { 5770, 0x6C00 },
 186         { 5681, 0x6E00 },
 187         { 5596, 0x7000 },
 188         { 5503, 0x7200 },
 189         { 5429, 0x7300 },
 190         { 5319, 0x7500 },
 191         { 5220, 0x7700 },
 192         { 5111, 0x7900 },
 193         { 4983, 0x7B00 },
 194         { 4876, 0x7D00 },
 195         { 4755, 0x7F00 },
 196         { 4635, 0x8100 },
 197         { 4499, 0x8300 },
 198         { 4405, 0x8500 },
 199         { 4323, 0x8600 },
 200         { 4233, 0x8800 },
 201         { 4156, 0x8A00 },
 202         { 4038, 0x8C00 },
 203         { 3935, 0x8E00 },
 204         { 3823, 0x9000 },
 205         { 3712, 0x9200 },
 206         { 3601, 0x9500 },
 207         { 3511, 0x9700 },
 208         { 3413, 0x9900 },
 209         { 3309, 0x9B00 },
 210         { 3213, 0x9D00 },
 211         { 3088, 0x9F00 },
 212         { 2992, 0xA100 },
 213         { 2878, 0xA400 },
 214         { 2769, 0xA700 },
 215         { 2645, 0xAA00 },
 216         { 2538, 0xAD00 },
 217         { 2441, 0xB000 },
 218         { 2350, 0xB600 },
 219         { 2237, 0xBA00 },
 220         { 2137, 0xBF00 },
 221         { 2039, 0xC500 },
 222         { 1938, 0xDF00 },
 223         { 1927, 0xFF00 }
 224 };
 225
 226 static const struct slookup gain_channel_agc_iip3_lookup[] = {
 227         /* Gain *100dB // reg */
 228         { 7070, 0x3000 },
 229         { 7028, 0x4000 },
 230         { 7019, 0x4600 },
 231         { 6900, 0x4A00 },
 232         { 6811, 0x4D00 },
 233         { 6763, 0x5100 },
 234         { 6690, 0x5400 },
 235         { 6644, 0x5700 },
 236         { 6617, 0x5A00 },
 237         { 6598, 0x5C00 },
 238         { 6462, 0x5F00 },
 239         { 6348, 0x6100 },
 240         { 6197, 0x6400 },
 241         { 6154, 0x6700 },
 242         { 6098, 0x6900 },
 243         { 5893, 0x6B00 },
 244         { 5812, 0x6C00 },
 245         { 5773, 0x6E00 },
 246         { 5723, 0x7000 },
 247         { 5661, 0x7200 },
 248         { 5579, 0x7300 },
 249         { 5460, 0x7500 },
 250         { 5308, 0x7700 },
 251         { 5099, 0x7900 },
 252         { 4910, 0x7B00 },
 253         { 4800, 0x7D00 },
 254         { 4785, 0x7F00 },
 255         { 4635, 0x8100 },
 256         { 4466, 0x8300 },
 257         { 4314, 0x8500 },
 258         { 4295, 0x8600 },
 259         { 4144, 0x8800 },
 260         { 3920, 0x8A00 },
 261         { 3889, 0x8C00 },
 262         { 3771, 0x8E00 },
 263         { 3655, 0x9000 },
 264         { 3446, 0x9200 },
 265         { 3298, 0x9500 },
 266         { 3083, 0x9700 },
 267         { 3015, 0x9900 },
 268         { 2833, 0x9B00 },
 269         { 2746, 0x9D00 },
 270         { 2632, 0x9F00 },
 271         { 2598, 0xA100 },
 272         { 2480, 0xA400 },
 273         { 2236, 0xA700 },
 274         { 2171, 0xAA00 },
 275         { 2060, 0xAD00 },
 276         { 1999, 0xB000 },
 277         { 1974, 0xB600 },
 278         { 1820, 0xBA00 },
 279         { 1741, 0xBF00 },
 280         { 1655, 0xC500 },
 281         { 1444, 0xDF00 },
 282         { 1325, 0xFF00 },
 283 };
 284
 285 static inline u32 muldiv32(u32 a, u32 b, u32 c)
 286 {
 287         u64 tmp64;
 288
 289         tmp64 = (u64)a * (u64)b;
 290         do_div(tmp64, c);
 291
 292         return (u32)tmp64;
 293 }
 294
 295 static int i2c_read(struct i2c_adapter *adap,
 296                     u8 adr, u8 *msg, int len, u8 *answ, int alen)
 297 {
 298         struct i2c_msg msgs[2] = { { .addr = adr, .flags = 0,
 299                                      .buf = msg, .len = len},
 300                                    { .addr = adr, .flags = I2C_M_RD,
 301                                      .buf = answ, .len = alen } };
 302         if (i2c_transfer(adap, msgs, 2) != 2) {
 303                 dev_err(&adap->dev, "i2c read error\n");
 304                 return -EIO;
 305         }
 306         return 0;
 307 }
 308
 309 static int i2c_write(struct i2c_adapter *adap, u8 adr, u8 *data, int len)
 310 {
 311         struct i2c_msg msg = {.addr = adr, .flags = 0,
 312                               .buf = data, .len = len};
 313
 314         if (i2c_transfer(adap, &msg, 1) != 1) {
 315                 dev_err(&adap->dev, "i2c write error\n");
 316                 return -EIO;
 317         }
 318         return 0;
 319 }
 320
 321 static int write_regs(struct stv *state, int reg, int len)
 322 {
 323         u8 d[12];
 324
 325         memcpy(&d[1], &state->reg[reg], len);
 326         d[0] = reg;
 327         return i2c_write(state->i2c, state->adr, d, len + 1);
 328 }
 329
 330 static int write_reg(struct stv *state, u8 reg, u8 val)
 331 {
 332         u8 d[2] = {reg, val};
 333
 334         return i2c_write(state->i2c, state->adr, d, 2);
 335 }
 336
 337 static int read_reg(struct stv *state, u8 reg, u8 *val)
 338 {
 339         return i2c_read(state->i2c, state->adr, &reg, 1, val, 1);
 340 }
 341
 342 static int wait_for_call_done(struct stv *state, u8 mask)
 343 {
 344         int status = 0;
 345         u32 lock_retry_count = 10;
 346
 347         while (lock_retry_count > 0) {
 348                 u8 regval;
 349
 350                 status = read_reg(state, 9, &regval);
 351                 if (status < 0)
 352                         return status;
 353
 354                 if ((regval & mask) == 0)
 355                         break;
 356                 usleep_range(4000, 6000);
 357                 lock_retry_count -= 1;
 358
 359                 status = -EIO;
 360         }
 361         return status;
 362 }
 363
 364 static void init_state(struct stv *state)
 365 {
 366         u32 clkdiv = 0;
 367         u32 agcmode = 0;
 368         u32 agcref = 2;
 369         u32 agcset = 0xffffffff;
 370         u32 bbmode = 0xffffffff;
 371
 372         state->reg[0] = 0x08;
 373         state->reg[1] = 0x41;
 374         state->reg[2] = 0x8f;
 375         state->reg[3] = 0x00;
 376         state->reg[4] = 0xce;
 377         state->reg[5] = 0x54;
 378         state->reg[6] = 0x55;
 379         state->reg[7] = 0x45;
 380         state->reg[8] = 0x46;
 381         state->reg[9] = 0xbd;
 382         state->reg[10] = 0x11;
 383
 384         state->ref_freq = 16000;
 385
 386         if (clkdiv <= 3)
 387                 state->reg[0x00] |= (clkdiv & 0x03);
 388         if (agcmode <= 3) {
 389                 state->reg[0x03] |= (agcmode << 5);
 390                 if (agcmode == 0x01)
 391                         state->reg[0x01] |= 0x30;
 392         }
 393         if (bbmode <= 3)
 394                 state->reg[0x01] = (state->reg[0x01] & ~0x30) | (bbmode << 4);
 395         if (agcref <= 7)
 396                 state->reg[0x03] |= agcref;
 397         if (agcset <= 31)
 398                 state->reg[0x02] = (state->reg[0x02] & ~0x1F) | agcset | 0x40;
 399 }
 400
 401 static int attach_init(struct stv *state)
 402 {
 403         if (write_regs(state, 0, 11))
 404                 return -ENODEV;
 405         return 0;
 406 }
 407
 408 static void release(struct dvb_frontend *fe)
 409 {
 410         kfree(fe->tuner_priv);
 411         fe->tuner_priv = NULL;
 412 }
 413
 414 static int set_bandwidth(struct dvb_frontend *fe, u32 cutoff_frequency)
 415 {
 416         struct stv *state = fe->tuner_priv;
 417         u32 index = (cutoff_frequency + 999999) / 1000000;
 418         int stat = 0;
 419
 420         if (index < 6)
 421                 index = 6;
 422         if (index > 50)
 423                 index = 50;
 424         if ((state->reg[0x08] & ~0xFC) == ((index - 6) << 2))
 425                 return 0;
 426
 427         state->reg[0x08] = (state->reg[0x08] & ~0xFC) | ((index - 6) << 2);
 428         state->reg[0x09] = (state->reg[0x09] & ~0x0C) | 0x08;
 429         if (fe->ops.i2c_gate_ctrl)
 430                 stat = fe->ops.i2c_gate_ctrl(fe, 1);
 431         if (!stat) {
 432                 write_regs(state, 0x08, 2);
 433                 wait_for_call_done(state, 0x08);
 434         }
 435         if (fe->ops.i2c_gate_ctrl && !stat)
 436                 fe->ops.i2c_gate_ctrl(fe, 0);
 437         return stat;
 438 }
 439
 440 static int set_lof(struct stv *state, u32 local_frequency, u32 cutoff_frequency)
 441 {
 442         u32 index = (cutoff_frequency + 999999) / 1000000;
 443         u32 frequency = (local_frequency + 500) / 1000;
 444         u32 p = 1, psel = 0, fvco, div, frac;
 445         u8 icp, tmp;
 446
 447         if (index < 6)
 448                 index = 6;
 449         if (index > 50)
 450                 index = 50;
 451
 452         if (frequency <= 1300000) {
 453                 p =  4;
 454                 psel = 1;
 455         } else {
 456                 p =  2;
 457                 psel = 0;
 458         }
 459         fvco = frequency * p;
 460         div = fvco / state->ref_freq;
 461         frac = fvco % state->ref_freq;
 462         frac = muldiv32(frac, 0x40000, state->ref_freq);
 463
 464         icp = 0;
 465         if (fvco < 2700000)
 466                 icp = 0;
 467         else if (fvco < 2950000)
 468                 icp = 1;
 469         else if (fvco < 3300000)
 470                 icp = 2;
 471         else if (fvco < 3700000)
 472                 icp = 3;
 473         else if (fvco < 4200000)
 474                 icp = 5;
 475         else if (fvco < 4800000)
 476                 icp = 6;
 477         else
 478                 icp = 7;
 479
 480         state->reg[0x02] |= 0x80; /* LNA IIP3 Mode */
 481
 482         state->reg[0x03] = (state->reg[0x03] & ~0x80) | (psel << 7);
 483         state->reg[0x04] = (div & 0xFF);
 484         state->reg[0x05] = (((div >> 8) & 0x01) | ((frac & 0x7F) << 1)) & 0xff;
 485         state->reg[0x06] = ((frac >> 7) & 0xFF);
 486         state->reg[0x07] = (state->reg[0x07] & ~0x07) | ((frac >> 15) & 0x07);
 487         state->reg[0x07] = (state->reg[0x07] & ~0xE0) | (icp << 5);
 488
 489         state->reg[0x08] = (state->reg[0x08] & ~0xFC) | ((index - 6) << 2);
 490         /* Start cal vco,CF */
 491         state->reg[0x09] = (state->reg[0x09] & ~0x0C) | 0x0C;
 492         write_regs(state, 2, 8);
 493
 494         wait_for_call_done(state, 0x0C);
 495
 496         usleep_range(10000, 12000);
 497
 498         read_reg(state, 0x03, &tmp);
 499         if (tmp & 0x10) {
 500                 state->reg[0x02] &= ~0x80; /* LNA NF Mode */
 501                 write_regs(state, 2, 1);
 502         }
 503         read_reg(state, 0x08, &tmp);
 504
 505         state->frequency = frequency;
 506
 507         return 0;
 508 }
 509
 510 static int set_params(struct dvb_frontend *fe)
 511 {
 512         struct stv *state = fe->tuner_priv;
 513         struct dtv_frontend_properties *p = &fe->dtv_property_cache;
 514         u32 freq, cutoff;
 515         int stat = 0;
 516
 517         if (p->delivery_system != SYS_DVBS && p->delivery_system != SYS_DVBS2)
 518                 return -EINVAL;
 519
 520         freq = p->frequency * 1000;
 521         cutoff = 5000000 + muldiv32(p->symbol_rate, 135, 200);
 522
 523         if (fe->ops.i2c_gate_ctrl)
 524                 stat = fe->ops.i2c_gate_ctrl(fe, 1);
 525         if (!stat)
 526                 set_lof(state, freq, cutoff);
 527         if (fe->ops.i2c_gate_ctrl && !stat)
 528                 fe->ops.i2c_gate_ctrl(fe, 0);
 529         return 0;
 530 }
 531
 532 static s32 table_lookup(const struct slookup *table,
 533                         int table_size, u16 reg_value)
 534 {
 535         s32 gain;
 536         s32 reg_diff;
 537         int imin = 0;
 538         int imax = table_size - 1;
 539         int i;
 540
 541         /* Assumes Table[0].RegValue < Table[imax].RegValue */
 542         if (reg_value <= table[0].reg_value) {
 543                 gain = table[0].value;
 544         } else if (reg_value >= table[imax].reg_value) {
 545                 gain = table[imax].value;
 546         } else {
 547                 while ((imax - imin) > 1) {
 548                         i = (imax + imin) / 2;
 549                         if ((table[imin].reg_value <= reg_value) &&
 550                             (reg_value <= table[i].reg_value))
 551                                 imax = i;
 552                         else
 553                                 imin = i;
 554                 }
 555                 reg_diff = table[imax].reg_value - table[imin].reg_value;
 556                 gain = table[imin].value;
 557                 if (reg_diff != 0)
 558                         gain += ((s32)(reg_value - table[imin].reg_value) *
 559                                 (s32)(table[imax].value
 560                                 - table[imin].value)) / reg_diff;
 561         }
 562         return gain;
 563 }
 564
 565 static int get_rf_strength(struct dvb_frontend *fe, u16 *st)
 566 {
 567         struct stv *state = fe->tuner_priv;
 568         u16 rfagc = *st;
 569         s32 gain;
 570
 571         if ((state->reg[0x03] & 0x60) == 0) {
 572                 /* RF Mode, Read AGC ADC */
 573                 u8 reg = 0;
 574                 int stat = 0;
 575
 576                 if (fe->ops.i2c_gate_ctrl)
 577                         stat = fe->ops.i2c_gate_ctrl(fe, 1);
 578                 if (!stat) {
 579                         write_reg(state, 0x02, state->reg[0x02] | 0x20);
 580                         read_reg(state, 2, &reg);
 581                         if (reg & 0x20)
 582                                 read_reg(state, 2, &reg);
 583                 }
 584                 if (fe->ops.i2c_gate_ctrl && !stat)
 585                         fe->ops.i2c_gate_ctrl(fe, 0);
 586
 587                 if ((state->reg[0x02] & 0x80) == 0)
 588                         /* NF */
 589                         gain = table_lookup(lnagain_nf_lookup,
 590                                             ARRAY_SIZE(lnagain_nf_lookup),
 591                                             reg & 0x1F);
 592                 else
 593                         /* IIP3 */
 594                         gain = table_lookup(lnagain_iip3_lookup,
 595                                             ARRAY_SIZE(lnagain_iip3_lookup),
 596                                             reg & 0x1F);
 597
 598                 gain += table_lookup(gain_rfagc_lookup,
 599                                      ARRAY_SIZE(gain_rfagc_lookup), rfagc);
 600
 601                 gain -= 2400;
 602         } else {
 603                 /* Channel Mode */
 604                 if ((state->reg[0x02] & 0x80) == 0) {
 605                         /* NF */
 606                         gain = table_lookup(
 607                                 gain_channel_agc_nf_lookup,
 608                                 ARRAY_SIZE(gain_channel_agc_nf_lookup), rfagc);
 609
 610                         gain += 600;
 611                 } else {
 612                         /* IIP3 */
 613                         gain = table_lookup(
 614                                 gain_channel_agc_iip3_lookup,
 615                                 ARRAY_SIZE(gain_channel_agc_iip3_lookup),
 616                                 rfagc);
 617                 }
 618         }
 619
 620         if (state->frequency > 0)
 621                 /* Tilt correction ( 0.00016 dB/MHz ) */
 622                 gain -= ((((s32)(state->frequency / 1000) - 1550) * 2) / 12);
 623
 624         /* + (BBGain * 10); */
 625         gain +=  (s32)((state->reg[0x01] & 0xC0) >> 6) * 600 - 1300;
 626
 627         if (gain < 0)
 628                 gain = 0;
 629         else if (gain > 10000)
 630                 gain = 10000;
 631
 632         *st = 10000 - gain;
 633
 634         return 0;
 635 }
 636
 637 static const struct dvb_tuner_ops tuner_ops = {
 638         .info = {
 639                 .name           = "ST STV6111",
 640                 .frequency_min_hz =  950 * MHz,
 641                 .frequency_max_hz = 2150 * MHz,
 642         },
 643         .set_params             = set_params,
 644         .release                = release,
 645         .get_rf_strength        = get_rf_strength,
 646         .set_bandwidth          = set_bandwidth,
 647 };
 648
 649 struct dvb_frontend *stv6111_attach(struct dvb_frontend *fe,
 650                                     struct i2c_adapter *i2c, u8 adr)
 651 {
 652         struct stv *state;
 653         int stat = -ENODEV;
 654         int gatestat = 0;
 655
 656         state = kzalloc(sizeof(*state), GFP_KERNEL);
 657         if (!state)
 658                 return NULL;
 659         state->adr = adr;
 660         state->i2c = i2c;
 661         memcpy(&fe->ops.tuner_ops, &tuner_ops, sizeof(struct dvb_tuner_ops));
 662         init_state(state);
 663
 664         if (fe->ops.i2c_gate_ctrl)
 665                 gatestat = fe->ops.i2c_gate_ctrl(fe, 1);
 666         if (!gatestat)
 667                 stat = attach_init(state);
 668         if (fe->ops.i2c_gate_ctrl && !gatestat)
 669                 fe->ops.i2c_gate_ctrl(fe, 0);
 670         if (stat < 0) {
 671                 kfree(state);
 672                 return NULL;
 673         }
 674         fe->tuner_priv = state;
 675         return fe;
 676 }
 677 EXPORT_SYMBOL_GPL(stv6111_attach);
 678
 679 MODULE_DESCRIPTION("ST STV6111 satellite tuner driver");
 680 MODULE_AUTHOR("Ralph Metzler, Manfred Voelkel");
 681 MODULE_LICENSE("GPL v2");