drivers/media/dvb/frontends/af9013.c

   1 /*
   2  * Afatech AF9013 demodulator driver
   3  *
   4  * Copyright (C) 2007 Antti Palosaari <crope@iki.fi>
   5  * Copyright (C) 2011 Antti Palosaari <crope@iki.fi>
   6  *
   7  * Thanks to Afatech who kindly provided information.
   8  *
   9  *    This program is free software; you can redistribute it and/or modify
  10  *    it under the terms of the GNU General Public License as published by
  11  *    the Free Software Foundation; either version 2 of the License, or
  12  *    (at your option) any later version.
  13  *
  14  *    This program is distributed in the hope that it will be useful,
  15  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *    GNU General Public License for more details.
  18  *
  19  *    You should have received a copy of the GNU General Public License
  20  *    along with this program; if not, write to the Free Software
  21  *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22  *
  23  */
  24
  25 #include "af9013_priv.h"
  26
  27 int af9013_debug;
  28 module_param_named(debug, af9013_debug, int, 0644);
  29 MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
  30
  31 struct af9013_state {
  32         struct i2c_adapter *i2c;
  33         struct dvb_frontend fe;
  34         struct af9013_config config;
  35
  36         /* tuner/demod RF and IF AGC limits used for signal strength calc */
  37         u8 signal_strength_en, rf_50, rf_80, if_50, if_80;
  38         u16 signal_strength;
  39         u32 ber;
  40         u32 ucblocks;
  41         u16 snr;
  42         u32 bandwidth_hz;
  43         fe_status_t fe_status;
  44         unsigned long set_frontend_jiffies;
  45         unsigned long read_status_jiffies;
  46         bool first_tune;
  47         bool i2c_gate_state;
  48         unsigned int statistics_step:3;
  49         struct delayed_work statistics_work;
  50 };
  51
  52 /* write multiple registers */
  53 static int af9013_wr_regs_i2c(struct af9013_state *priv, u8 mbox, u16 reg,
  54         const u8 *val, int len)
  55 {
  56         int ret;
  57         u8 buf[3+len];
  58         struct i2c_msg msg[1] = {
  59                 {
  60                         .addr = priv->config.i2c_addr,
  61                         .flags = 0,
  62                         .len = sizeof(buf),
  63                         .buf = buf,
  64                 }
  65         };
  66
  67         buf[0] = (reg >> 8) & 0xff;
  68         buf[1] = (reg >> 0) & 0xff;
  69         buf[2] = mbox;
  70         memcpy(&buf[3], val, len);
  71
  72         ret = i2c_transfer(priv->i2c, msg, 1);
  73         if (ret == 1) {
  74                 ret = 0;
  75         } else {
  76                 warn("i2c wr failed=%d reg=%04x len=%d", ret, reg, len);
  77                 ret = -EREMOTEIO;
  78         }
  79         return ret;
  80 }
  81
  82 /* read multiple registers */
  83 static int af9013_rd_regs_i2c(struct af9013_state *priv, u8 mbox, u16 reg,
  84         u8 *val, int len)
  85 {
  86         int ret;
  87         u8 buf[3];
  88         struct i2c_msg msg[2] = {
  89                 {
  90                         .addr = priv->config.i2c_addr,
  91                         .flags = 0,
  92                         .len = 3,
  93                         .buf = buf,
  94                 }, {
  95                         .addr = priv->config.i2c_addr,
  96                         .flags = I2C_M_RD,
  97                         .len = len,
  98                         .buf = val,
  99                 }
 100         };
 101
 102         buf[0] = (reg >> 8) & 0xff;
 103         buf[1] = (reg >> 0) & 0xff;
 104         buf[2] = mbox;
 105
 106         ret = i2c_transfer(priv->i2c, msg, 2);
 107         if (ret == 2) {
 108                 ret = 0;
 109         } else {
 110                 warn("i2c rd failed=%d reg=%04x len=%d", ret, reg, len);
 111                 ret = -EREMOTEIO;
 112         }
 113         return ret;
 114 }
 115
 116 /* write multiple registers */
 117 static int af9013_wr_regs(struct af9013_state *priv, u16 reg, const u8 *val,
 118         int len)
 119 {
 120         int ret, i;
 121         u8 mbox = (0 << 7)|(0 << 6)|(1 << 1)|(1 << 0);
 122
 123         if ((priv->config.ts_mode == AF9013_TS_USB) &&
 124                 ((reg & 0xff00) != 0xff00) && ((reg & 0xff00) != 0xae00)) {
 125                 mbox |= ((len - 1) << 2);
 126                 ret = af9013_wr_regs_i2c(priv, mbox, reg, val, len);
 127         } else {
 128                 for (i = 0; i < len; i++) {
 129                         ret = af9013_wr_regs_i2c(priv, mbox, reg+i, val+i, 1);
 130                         if (ret)
 131                                 goto err;
 132                 }
 133         }
 134
 135 err:
 136         return 0;
 137 }
 138
 139 /* read multiple registers */
 140 static int af9013_rd_regs(struct af9013_state *priv, u16 reg, u8 *val, int len)
 141 {
 142         int ret, i;
 143         u8 mbox = (0 << 7)|(0 << 6)|(1 << 1)|(0 << 0);
 144
 145         if ((priv->config.ts_mode == AF9013_TS_USB) &&
 146                 ((reg & 0xff00) != 0xff00) && ((reg & 0xff00) != 0xae00)) {
 147                 mbox |= ((len - 1) << 2);
 148                 ret = af9013_rd_regs_i2c(priv, mbox, reg, val, len);
 149         } else {
 150                 for (i = 0; i < len; i++) {
 151                         ret = af9013_rd_regs_i2c(priv, mbox, reg+i, val+i, 1);
 152                         if (ret)
 153                                 goto err;
 154                 }
 155         }
 156
 157 err:
 158         return 0;
 159 }
 160
 161 /* write single register */
 162 static int af9013_wr_reg(struct af9013_state *priv, u16 reg, u8 val)
 163 {
 164         return af9013_wr_regs(priv, reg, &val, 1);
 165 }
 166
 167 /* read single register */
 168 static int af9013_rd_reg(struct af9013_state *priv, u16 reg, u8 *val)
 169 {
 170         return af9013_rd_regs(priv, reg, val, 1);
 171 }
 172
 173 static int af9013_write_ofsm_regs(struct af9013_state *state, u16 reg, u8 *val,
 174         u8 len)
 175 {
 176         u8 mbox = (1 << 7)|(1 << 6)|((len - 1) << 2)|(1 << 1)|(1 << 0);
 177         return af9013_wr_regs_i2c(state, mbox, reg, val, len);
 178 }
 179
 180 static int af9013_wr_reg_bits(struct af9013_state *state, u16 reg, int pos,
 181         int len, u8 val)
 182 {
 183         int ret;
 184         u8 tmp, mask;
 185
 186         /* no need for read if whole reg is written */
 187         if (len != 8) {
 188                 ret = af9013_rd_reg(state, reg, &tmp);
 189                 if (ret)
 190                         return ret;
 191
 192                 mask = (0xff >> (8 - len)) << pos;
 193                 val <<= pos;
 194                 tmp &= ~mask;
 195                 val |= tmp;
 196         }
 197
 198         return af9013_wr_reg(state, reg, val);
 199 }
 200
 201 static int af9013_rd_reg_bits(struct af9013_state *state, u16 reg, int pos,
 202         int len, u8 *val)
 203 {
 204         int ret;
 205         u8 tmp;
 206
 207         ret = af9013_rd_reg(state, reg, &tmp);
 208         if (ret)
 209                 return ret;
 210
 211         *val = (tmp >> pos);
 212         *val &= (0xff >> (8 - len));
 213
 214         return 0;
 215 }
 216
 217 static int af9013_set_gpio(struct af9013_state *state, u8 gpio, u8 gpioval)
 218 {
 219         int ret;
 220         u8 pos;
 221         u16 addr;
 222
 223         dbg("%s: gpio=%d gpioval=%02x", __func__, gpio, gpioval);
 224
 225         /*
 226          * GPIO0 & GPIO1 0xd735
 227          * GPIO2 & GPIO3 0xd736
 228          */
 229
 230         switch (gpio) {
 231         case 0:
 232         case 1:
 233                 addr = 0xd735;
 234                 break;
 235         case 2:
 236         case 3:
 237                 addr = 0xd736;
 238                 break;
 239
 240         default:
 241                 err("invalid gpio:%d\n", gpio);
 242                 ret = -EINVAL;
 243                 goto err;
 244         };
 245
 246         switch (gpio) {
 247         case 0:
 248         case 2:
 249                 pos = 0;
 250                 break;
 251         case 1:
 252         case 3:
 253         default:
 254                 pos = 4;
 255                 break;
 256         };
 257
 258         ret = af9013_wr_reg_bits(state, addr, pos, 4, gpioval);
 259         if (ret)
 260                 goto err;
 261
 262         return ret;
 263 err:
 264         dbg("%s: failed=%d", __func__, ret);
 265         return ret;
 266 }
 267
 268 static u32 af913_div(u32 a, u32 b, u32 x)
 269 {
 270         u32 r = 0, c = 0, i;
 271
 272         dbg("%s: a=%d b=%d x=%d", __func__, a, b, x);
 273
 274         if (a > b) {
 275                 c = a / b;
 276                 a = a - c * b;
 277         }
 278
 279         for (i = 0; i < x; i++) {
 280                 if (a >= b) {
 281                         r += 1;
 282                         a -= b;
 283                 }
 284                 a <<= 1;
 285                 r <<= 1;
 286         }
 287         r = (c << (u32)x) + r;
 288
 289         dbg("%s: a=%d b=%d x=%d r=%x", __func__, a, b, x, r);
 290         return r;
 291 }
 292
 293 static int af9013_power_ctrl(struct af9013_state *state, u8 onoff)
 294 {
 295         int ret, i;
 296         u8 tmp;
 297
 298         dbg("%s: onoff=%d", __func__, onoff);
 299
 300         /* enable reset */
 301         ret = af9013_wr_reg_bits(state, 0xd417, 4, 1, 1);
 302         if (ret)
 303                 goto err;
 304
 305         /* start reset mechanism */
 306         ret = af9013_wr_reg(state, 0xaeff, 1);
 307         if (ret)
 308                 goto err;
 309
 310         /* wait reset performs */
 311         for (i = 0; i < 150; i++) {
 312                 ret = af9013_rd_reg_bits(state, 0xd417, 1, 1, &tmp);
 313                 if (ret)
 314                         goto err;
 315
 316                 if (tmp)
 317                         break; /* reset done */
 318
 319                 usleep_range(5000, 25000);
 320         }
 321
 322         if (!tmp)
 323                 return -ETIMEDOUT;
 324
 325         if (onoff) {
 326                 /* clear reset */
 327                 ret = af9013_wr_reg_bits(state, 0xd417, 1, 1, 0);
 328                 if (ret)
 329                         goto err;
 330
 331                 /* disable reset */
 332                 ret = af9013_wr_reg_bits(state, 0xd417, 4, 1, 0);
 333
 334                 /* power on */
 335                 ret = af9013_wr_reg_bits(state, 0xd73a, 3, 1, 0);
 336         } else {
 337                 /* power off */
 338                 ret = af9013_wr_reg_bits(state, 0xd73a, 3, 1, 1);
 339         }
 340
 341         return ret;
 342 err:
 343         dbg("%s: failed=%d", __func__, ret);
 344         return ret;
 345 }
 346
 347 static int af9013_statistics_ber_unc_start(struct dvb_frontend *fe)
 348 {
 349         struct af9013_state *state = fe->demodulator_priv;
 350         int ret;
 351
 352         dbg("%s", __func__);
 353
 354         /* reset and start BER counter */
 355         ret = af9013_wr_reg_bits(state, 0xd391, 4, 1, 1);
 356         if (ret)
 357                 goto err;
 358
 359         return ret;
 360 err:
 361         dbg("%s: failed=%d", __func__, ret);
 362         return ret;
 363 }
 364
 365 static int af9013_statistics_ber_unc_result(struct dvb_frontend *fe)
 366 {
 367         struct af9013_state *state = fe->demodulator_priv;
 368         int ret;
 369         u8 buf[5];
 370
 371         dbg("%s", __func__);
 372
 373         /* check if error bit count is ready */
 374         ret = af9013_rd_reg_bits(state, 0xd391, 4, 1, &buf[0]);
 375         if (ret)
 376                 goto err;
 377
 378         if (!buf[0]) {
 379                 dbg("%s: not ready", __func__);
 380                 return 0;
 381         }
 382
 383         ret = af9013_rd_regs(state, 0xd387, buf, 5);
 384         if (ret)
 385                 goto err;
 386
 387         state->ber = (buf[2] << 16) | (buf[1] << 8) | buf[0];
 388         state->ucblocks += (buf[4] << 8) | buf[3];
 389
 390         return ret;
 391 err:
 392         dbg("%s: failed=%d", __func__, ret);
 393         return ret;
 394 }
 395
 396 static int af9013_statistics_snr_start(struct dvb_frontend *fe)
 397 {
 398         struct af9013_state *state = fe->demodulator_priv;
 399         int ret;
 400
 401         dbg("%s", __func__);
 402
 403         /* start SNR meas */
 404         ret = af9013_wr_reg_bits(state, 0xd2e1, 3, 1, 1);
 405         if (ret)
 406                 goto err;
 407
 408         return ret;
 409 err:
 410         dbg("%s: failed=%d", __func__, ret);
 411         return ret;
 412 }
 413
 414 static int af9013_statistics_snr_result(struct dvb_frontend *fe)
 415 {
 416         struct af9013_state *state = fe->demodulator_priv;
 417         int ret, i, len;
 418         u8 buf[3], tmp;
 419         u32 snr_val;
 420         const struct af9013_snr *uninitialized_var(snr_lut);
 421
 422         dbg("%s", __func__);
 423
 424         /* check if SNR ready */
 425         ret = af9013_rd_reg_bits(state, 0xd2e1, 3, 1, &tmp);
 426         if (ret)
 427                 goto err;
 428
 429         if (!tmp) {
 430                 dbg("%s: not ready", __func__);
 431                 return 0;
 432         }
 433
 434         /* read value */
 435         ret = af9013_rd_regs(state, 0xd2e3, buf, 3);
 436         if (ret)
 437                 goto err;
 438
 439         snr_val = (buf[2] << 16) | (buf[1] << 8) | buf[0];
 440
 441         /* read current modulation */
 442         ret = af9013_rd_reg(state, 0xd3c1, &tmp);
 443         if (ret)
 444                 goto err;
 445
 446         switch ((tmp >> 6) & 3) {
 447         case 0:
 448                 len = ARRAY_SIZE(qpsk_snr_lut);
 449                 snr_lut = qpsk_snr_lut;
 450                 break;
 451         case 1:
 452                 len = ARRAY_SIZE(qam16_snr_lut);
 453                 snr_lut = qam16_snr_lut;
 454                 break;
 455         case 2:
 456                 len = ARRAY_SIZE(qam64_snr_lut);
 457                 snr_lut = qam64_snr_lut;
 458                 break;
 459         default:
 460                 goto err;
 461                 break;
 462         }
 463
 464         for (i = 0; i < len; i++) {
 465                 tmp = snr_lut[i].snr;
 466
 467                 if (snr_val < snr_lut[i].val)
 468                         break;
 469         }
 470         state->snr = tmp * 10; /* dB/10 */
 471
 472         return ret;
 473 err:
 474         dbg("%s: failed=%d", __func__, ret);
 475         return ret;
 476 }
 477
 478 static int af9013_statistics_signal_strength(struct dvb_frontend *fe)
 479 {
 480         struct af9013_state *state = fe->demodulator_priv;
 481         int ret = 0;
 482         u8 buf[2], rf_gain, if_gain;
 483         int signal_strength;
 484
 485         dbg("%s", __func__);
 486
 487         if (!state->signal_strength_en)
 488                 return 0;
 489
 490         ret = af9013_rd_regs(state, 0xd07c, buf, 2);
 491         if (ret)
 492                 goto err;
 493
 494         rf_gain = buf[0];
 495         if_gain = buf[1];
 496
 497         signal_strength = (0xffff / \
 498                 (9 * (state->rf_50 + state->if_50) - \
 499                 11 * (state->rf_80 + state->if_80))) * \
 500                 (10 * (rf_gain + if_gain) - \
 501                 11 * (state->rf_80 + state->if_80));
 502         if (signal_strength < 0)
 503                 signal_strength = 0;
 504         else if (signal_strength > 0xffff)
 505                 signal_strength = 0xffff;
 506
 507         state->signal_strength = signal_strength;
 508
 509         return ret;
 510 err:
 511         dbg("%s: failed=%d", __func__, ret);
 512         return ret;
 513 }
 514
 515 static void af9013_statistics_work(struct work_struct *work)
 516 {
 517         int ret;
 518         struct af9013_state *state = container_of(work,
 519                 struct af9013_state, statistics_work.work);
 520         unsigned int next_msec;
 521
 522         /* update only signal strength when demod is not locked */
 523         if (!(state->fe_status & FE_HAS_LOCK)) {
 524                 state->statistics_step = 0;
 525                 state->ber = 0;
 526                 state->snr = 0;
 527         }
 528
 529         switch (state->statistics_step) {
 530         default:
 531                 state->statistics_step = 0;
 532         case 0:
 533                 ret = af9013_statistics_signal_strength(&state->fe);
 534                 state->statistics_step++;
 535                 next_msec = 300;
 536                 break;
 537         case 1:
 538                 ret = af9013_statistics_snr_start(&state->fe);
 539                 state->statistics_step++;
 540                 next_msec = 200;
 541                 break;
 542         case 2:
 543                 ret = af9013_statistics_ber_unc_start(&state->fe);
 544                 state->statistics_step++;
 545                 next_msec = 1000;
 546                 break;
 547         case 3:
 548                 ret = af9013_statistics_snr_result(&state->fe);
 549                 state->statistics_step++;
 550                 next_msec = 400;
 551                 break;
 552         case 4:
 553                 ret = af9013_statistics_ber_unc_result(&state->fe);
 554                 state->statistics_step++;
 555                 next_msec = 100;
 556                 break;
 557         }
 558
 559         schedule_delayed_work(&state->statistics_work,
 560                 msecs_to_jiffies(next_msec));
 561
 562         return;
 563 }
 564
 565 static int af9013_get_tune_settings(struct dvb_frontend *fe,
 566         struct dvb_frontend_tune_settings *fesettings)
 567 {
 568         fesettings->min_delay_ms = 800;
 569         fesettings->step_size = 0;
 570         fesettings->max_drift = 0;
 571
 572         return 0;
 573 }
 574
 575 static int af9013_set_frontend(struct dvb_frontend *fe)
 576 {
 577         struct af9013_state *state = fe->demodulator_priv;
 578         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 579         int ret, i, sampling_freq;
 580         bool auto_mode, spec_inv;
 581         u8 buf[6];
 582         u32 if_frequency, freq_cw;
 583
 584         dbg("%s: frequency=%d bandwidth_hz=%d", __func__,
 585                 c->frequency, c->bandwidth_hz);
 586
 587         /* program tuner */
 588         if (fe->ops.tuner_ops.set_params)
 589                 fe->ops.tuner_ops.set_params(fe);
 590
 591         /* program CFOE coefficients */
 592         if (c->bandwidth_hz != state->bandwidth_hz) {
 593                 for (i = 0; i < ARRAY_SIZE(coeff_lut); i++) {
 594                         if (coeff_lut[i].clock == state->config.clock &&
 595                                 coeff_lut[i].bandwidth_hz == c->bandwidth_hz) {
 596                                 break;
 597                         }
 598                 }
 599
 600                 ret = af9013_wr_regs(state, 0xae00, coeff_lut[i].val,
 601                         sizeof(coeff_lut[i].val));
 602         }
 603
 604         /* program frequency control */
 605         if (c->bandwidth_hz != state->bandwidth_hz || state->first_tune) {
 606                 /* get used IF frequency */
 607                 if (fe->ops.tuner_ops.get_if_frequency)
 608                         fe->ops.tuner_ops.get_if_frequency(fe, &if_frequency);
 609                 else
 610                         if_frequency = state->config.if_frequency;
 611
 612                 sampling_freq = if_frequency;
 613
 614                 while (sampling_freq > (state->config.clock / 2))
 615                         sampling_freq -= state->config.clock;
 616
 617                 if (sampling_freq < 0) {
 618                         sampling_freq *= -1;
 619                         spec_inv = state->config.spec_inv;
 620                 } else {
 621                         spec_inv = !state->config.spec_inv;
 622                 }
 623
 624                 freq_cw = af913_div(sampling_freq, state->config.clock, 23);
 625
 626                 if (spec_inv)
 627                         freq_cw = 0x800000 - freq_cw;
 628
 629                 buf[0] = (freq_cw >>  0) & 0xff;
 630                 buf[1] = (freq_cw >>  8) & 0xff;
 631                 buf[2] = (freq_cw >> 16) & 0x7f;
 632
 633                 freq_cw = 0x800000 - freq_cw;
 634
 635                 buf[3] = (freq_cw >>  0) & 0xff;
 636                 buf[4] = (freq_cw >>  8) & 0xff;
 637                 buf[5] = (freq_cw >> 16) & 0x7f;
 638
 639                 ret = af9013_wr_regs(state, 0xd140, buf, 3);
 640                 if (ret)
 641                         goto err;
 642
 643                 ret = af9013_wr_regs(state, 0x9be7, buf, 6);
 644                 if (ret)
 645                         goto err;
 646         }
 647
 648         /* clear TPS lock flag */
 649         ret = af9013_wr_reg_bits(state, 0xd330, 3, 1, 1);
 650         if (ret)
 651                 goto err;
 652
 653         /* clear MPEG2 lock flag */
 654         ret = af9013_wr_reg_bits(state, 0xd507, 6, 1, 0);
 655         if (ret)
 656                 goto err;
 657
 658         /* empty channel function */
 659         ret = af9013_wr_reg_bits(state, 0x9bfe, 0, 1, 0);
 660         if (ret)
 661                 goto err;
 662
 663         /* empty DVB-T channel function */
 664         ret = af9013_wr_reg_bits(state, 0x9bc2, 0, 1, 0);
 665         if (ret)
 666                 goto err;
 667
 668         /* transmission parameters */
 669         auto_mode = false;
 670         memset(buf, 0, 3);
 671
 672         switch (c->transmission_mode) {
 673         case TRANSMISSION_MODE_AUTO:
 674                 auto_mode = 1;
 675                 break;
 676         case TRANSMISSION_MODE_2K:
 677                 break;
 678         case TRANSMISSION_MODE_8K:
 679                 buf[0] |= (1 << 0);
 680                 break;
 681         default:
 682                 dbg("%s: invalid transmission_mode", __func__);
 683                 auto_mode = 1;
 684         }
 685
 686         switch (c->guard_interval) {
 687         case GUARD_INTERVAL_AUTO:
 688                 auto_mode = 1;
 689                 break;
 690         case GUARD_INTERVAL_1_32:
 691                 break;
 692         case GUARD_INTERVAL_1_16:
 693                 buf[0] |= (1 << 2);
 694                 break;
 695         case GUARD_INTERVAL_1_8:
 696                 buf[0] |= (2 << 2);
 697                 break;
 698         case GUARD_INTERVAL_1_4:
 699                 buf[0] |= (3 << 2);
 700                 break;
 701         default:
 702                 dbg("%s: invalid guard_interval", __func__);
 703                 auto_mode = 1;
 704         }
 705
 706         switch (c->hierarchy) {
 707         case HIERARCHY_AUTO:
 708                 auto_mode = 1;
 709                 break;
 710         case HIERARCHY_NONE:
 711                 break;
 712         case HIERARCHY_1:
 713                 buf[0] |= (1 << 4);
 714                 break;
 715         case HIERARCHY_2:
 716                 buf[0] |= (2 << 4);
 717                 break;
 718         case HIERARCHY_4:
 719                 buf[0] |= (3 << 4);
 720                 break;
 721         default:
 722                 dbg("%s: invalid hierarchy", __func__);
 723                 auto_mode = 1;
 724         };
 725
 726         switch (c->modulation) {
 727         case QAM_AUTO:
 728                 auto_mode = 1;
 729                 break;
 730         case QPSK:
 731                 break;
 732         case QAM_16:
 733                 buf[1] |= (1 << 6);
 734                 break;
 735         case QAM_64:
 736                 buf[1] |= (2 << 6);
 737                 break;
 738         default:
 739                 dbg("%s: invalid modulation", __func__);
 740                 auto_mode = 1;
 741         }
 742
 743         /* Use HP. How and which case we can switch to LP? */
 744         buf[1] |= (1 << 4);
 745
 746         switch (c->code_rate_HP) {
 747         case FEC_AUTO:
 748                 auto_mode = 1;
 749                 break;
 750         case FEC_1_2:
 751                 break;
 752         case FEC_2_3:
 753                 buf[2] |= (1 << 0);
 754                 break;
 755         case FEC_3_4:
 756                 buf[2] |= (2 << 0);
 757                 break;
 758         case FEC_5_6:
 759                 buf[2] |= (3 << 0);
 760                 break;
 761         case FEC_7_8:
 762                 buf[2] |= (4 << 0);
 763                 break;
 764         default:
 765                 dbg("%s: invalid code_rate_HP", __func__);
 766                 auto_mode = 1;
 767         }
 768
 769         switch (c->code_rate_LP) {
 770         case FEC_AUTO:
 771                 auto_mode = 1;
 772                 break;
 773         case FEC_1_2:
 774                 break;
 775         case FEC_2_3:
 776                 buf[2] |= (1 << 3);
 777                 break;
 778         case FEC_3_4:
 779                 buf[2] |= (2 << 3);
 780                 break;
 781         case FEC_5_6:
 782                 buf[2] |= (3 << 3);
 783                 break;
 784         case FEC_7_8:
 785                 buf[2] |= (4 << 3);
 786                 break;
 787         case FEC_NONE:
 788                 break;
 789         default:
 790                 dbg("%s: invalid code_rate_LP", __func__);
 791                 auto_mode = 1;
 792         }
 793
 794         switch (c->bandwidth_hz) {
 795         case 6000000:
 796                 break;
 797         case 7000000:
 798                 buf[1] |= (1 << 2);
 799                 break;
 800         case 8000000:
 801                 buf[1] |= (2 << 2);
 802                 break;
 803         default:
 804                 dbg("%s: invalid bandwidth_hz", __func__);
 805                 ret = -EINVAL;
 806                 goto err;
 807         }
 808
 809         ret = af9013_wr_regs(state, 0xd3c0, buf, 3);
 810         if (ret)
 811                 goto err;
 812
 813         if (auto_mode) {
 814                 /* clear easy mode flag */
 815                 ret = af9013_wr_reg(state, 0xaefd, 0);
 816                 if (ret)
 817                         goto err;
 818
 819                 dbg("%s: auto params", __func__);
 820         } else {
 821                 /* set easy mode flag */
 822                 ret = af9013_wr_reg(state, 0xaefd, 1);
 823                 if (ret)
 824                         goto err;
 825
 826                 ret = af9013_wr_reg(state, 0xaefe, 0);
 827                 if (ret)
 828                         goto err;
 829
 830                 dbg("%s: manual params", __func__);
 831         }
 832
 833         /* tune */
 834         ret = af9013_wr_reg(state, 0xffff, 0);
 835         if (ret)
 836                 goto err;
 837
 838         state->bandwidth_hz = c->bandwidth_hz;
 839         state->set_frontend_jiffies = jiffies;
 840         state->first_tune = false;
 841
 842         return ret;
 843 err:
 844         dbg("%s: failed=%d", __func__, ret);
 845         return ret;
 846 }
 847
 848 static int af9013_get_frontend(struct dvb_frontend *fe)
 849 {
 850         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 851         struct af9013_state *state = fe->demodulator_priv;
 852         int ret;
 853         u8 buf[3];
 854
 855         dbg("%s", __func__);
 856
 857         ret = af9013_rd_regs(state, 0xd3c0, buf, 3);
 858         if (ret)
 859                 goto err;
 860
 861         switch ((buf[1] >> 6) & 3) {
 862         case 0:
 863                 c->modulation = QPSK;
 864                 break;
 865         case 1:
 866                 c->modulation = QAM_16;
 867                 break;
 868         case 2:
 869                 c->modulation = QAM_64;
 870                 break;
 871         }
 872
 873         switch ((buf[0] >> 0) & 3) {
 874         case 0:
 875                 c->transmission_mode = TRANSMISSION_MODE_2K;
 876                 break;
 877         case 1:
 878                 c->transmission_mode = TRANSMISSION_MODE_8K;
 879         }
 880
 881         switch ((buf[0] >> 2) & 3) {
 882         case 0:
 883                 c->guard_interval = GUARD_INTERVAL_1_32;
 884                 break;
 885         case 1:
 886                 c->guard_interval = GUARD_INTERVAL_1_16;
 887                 break;
 888         case 2:
 889                 c->guard_interval = GUARD_INTERVAL_1_8;
 890                 break;
 891         case 3:
 892                 c->guard_interval = GUARD_INTERVAL_1_4;
 893                 break;
 894         }
 895
 896         switch ((buf[0] >> 4) & 7) {
 897         case 0:
 898                 c->hierarchy = HIERARCHY_NONE;
 899                 break;
 900         case 1:
 901                 c->hierarchy = HIERARCHY_1;
 902                 break;
 903         case 2:
 904                 c->hierarchy = HIERARCHY_2;
 905                 break;
 906         case 3:
 907                 c->hierarchy = HIERARCHY_4;
 908                 break;
 909         }
 910
 911         switch ((buf[2] >> 0) & 7) {
 912         case 0:
 913                 c->code_rate_HP = FEC_1_2;
 914                 break;
 915         case 1:
 916                 c->code_rate_HP = FEC_2_3;
 917                 break;
 918         case 2:
 919                 c->code_rate_HP = FEC_3_4;
 920                 break;
 921         case 3:
 922                 c->code_rate_HP = FEC_5_6;
 923                 break;
 924         case 4:
 925                 c->code_rate_HP = FEC_7_8;
 926                 break;
 927         }
 928
 929         switch ((buf[2] >> 3) & 7) {
 930         case 0:
 931                 c->code_rate_LP = FEC_1_2;
 932                 break;
 933         case 1:
 934                 c->code_rate_LP = FEC_2_3;
 935                 break;
 936         case 2:
 937                 c->code_rate_LP = FEC_3_4;
 938                 break;
 939         case 3:
 940                 c->code_rate_LP = FEC_5_6;
 941                 break;
 942         case 4:
 943                 c->code_rate_LP = FEC_7_8;
 944                 break;
 945         }
 946
 947         switch ((buf[1] >> 2) & 3) {
 948         case 0:
 949                 c->bandwidth_hz = 6000000;
 950                 break;
 951         case 1:
 952                 c->bandwidth_hz = 7000000;
 953                 break;
 954         case 2:
 955                 c->bandwidth_hz = 8000000;
 956                 break;
 957         }
 958
 959         return ret;
 960 err:
 961         dbg("%s: failed=%d", __func__, ret);
 962         return ret;
 963 }
 964
 965 static int af9013_read_status(struct dvb_frontend *fe, fe_status_t *status)
 966 {
 967         struct af9013_state *state = fe->demodulator_priv;
 968         int ret;
 969         u8 tmp;
 970
 971         /*
 972          * Return status from the cache if it is younger than 2000ms with the
 973          * exception of last tune is done during 4000ms.
 974          */
 975         if (time_is_after_jiffies(
 976                 state->read_status_jiffies + msecs_to_jiffies(2000)) &&
 977                 time_is_before_jiffies(
 978                 state->set_frontend_jiffies + msecs_to_jiffies(4000))
 979         ) {
 980                         *status = state->fe_status;
 981                         return 0;
 982         } else {
 983                 *status = 0;
 984         }
 985
 986         /* MPEG2 lock */
 987         ret = af9013_rd_reg_bits(state, 0xd507, 6, 1, &tmp);
 988         if (ret)
 989                 goto err;
 990
 991         if (tmp)
 992                 *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI |
 993                         FE_HAS_SYNC | FE_HAS_LOCK;
 994
 995         if (!*status) {
 996                 /* TPS lock */
 997                 ret = af9013_rd_reg_bits(state, 0xd330, 3, 1, &tmp);
 998                 if (ret)
 999                         goto err;
1000
1001                 if (tmp)
1002                         *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER |
1003                                 FE_HAS_VITERBI;
1004         }
1005
1006         state->fe_status = *status;
1007         state->read_status_jiffies = jiffies;
1008
1009         return ret;
1010 err:
1011         dbg("%s: failed=%d", __func__, ret);
1012         return ret;
1013 }
1014
1015 static int af9013_read_snr(struct dvb_frontend *fe, u16 *snr)
1016 {
1017         struct af9013_state *state = fe->demodulator_priv;
1018         *snr = state->snr;
1019         return 0;
1020 }
1021
1022 static int af9013_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
1023 {
1024         struct af9013_state *state = fe->demodulator_priv;
1025         *strength = state->signal_strength;
1026         return 0;
1027 }
1028
1029 static int af9013_read_ber(struct dvb_frontend *fe, u32 *ber)
1030 {
1031         struct af9013_state *state = fe->demodulator_priv;
1032         *ber = state->ber;
1033         return 0;
1034 }
1035
1036 static int af9013_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
1037 {
1038         struct af9013_state *state = fe->demodulator_priv;
1039         *ucblocks = state->ucblocks;
1040         return 0;
1041 }
1042
1043 static int af9013_init(struct dvb_frontend *fe)
1044 {
1045         struct af9013_state *state = fe->demodulator_priv;
1046         int ret, i, len;
1047         u8 buf[3], tmp;
1048         u32 adc_cw;
1049         const struct af9013_reg_bit *init;
1050
1051         dbg("%s", __func__);
1052
1053         /* power on */
1054         ret = af9013_power_ctrl(state, 1);
1055         if (ret)
1056                 goto err;
1057
1058         /* enable ADC */
1059         ret = af9013_wr_reg(state, 0xd73a, 0xa4);
1060         if (ret)
1061                 goto err;
1062
1063         /* write API version to firmware */
1064         ret = af9013_wr_regs(state, 0x9bf2, state->config.api_version, 4);
1065         if (ret)
1066                 goto err;
1067
1068         /* program ADC control */
1069         switch (state->config.clock) {
1070         case 28800000: /* 28.800 MHz */
1071                 tmp = 0;
1072                 break;
1073         case 20480000: /* 20.480 MHz */
1074                 tmp = 1;
1075                 break;
1076         case 28000000: /* 28.000 MHz */
1077                 tmp = 2;
1078                 break;
1079         case 25000000: /* 25.000 MHz */
1080                 tmp = 3;
1081                 break;
1082         default:
1083                 err("invalid clock");
1084                 return -EINVAL;
1085         }
1086
1087         adc_cw = af913_div(state->config.clock, 1000000ul, 19);
1088         buf[0] = (adc_cw >>  0) & 0xff;
1089         buf[1] = (adc_cw >>  8) & 0xff;
1090         buf[2] = (adc_cw >> 16) & 0xff;
1091
1092         ret = af9013_wr_regs(state, 0xd180, buf, 3);
1093         if (ret)
1094                 goto err;
1095
1096         ret = af9013_wr_reg_bits(state, 0x9bd2, 0, 4, tmp);
1097         if (ret)
1098                 goto err;
1099
1100         /* set I2C master clock */
1101         ret = af9013_wr_reg(state, 0xd416, 0x14);
1102         if (ret)
1103                 goto err;
1104
1105         /* set 16 embx */
1106         ret = af9013_wr_reg_bits(state, 0xd700, 1, 1, 1);
1107         if (ret)
1108                 goto err;
1109
1110         /* set no trigger */
1111         ret = af9013_wr_reg_bits(state, 0xd700, 2, 1, 0);
1112         if (ret)
1113                 goto err;
1114
1115         /* set read-update bit for constellation */
1116         ret = af9013_wr_reg_bits(state, 0xd371, 1, 1, 1);
1117         if (ret)
1118                 goto err;
1119
1120         /* settings for mp2if */
1121         if (state->config.ts_mode == AF9013_TS_USB) {
1122                 /* AF9015 split PSB to 1.5k + 0.5k */
1123                 ret = af9013_wr_reg_bits(state, 0xd50b, 2, 1, 1);
1124                 if (ret)
1125                         goto err;
1126         } else {
1127                 /* AF9013 change the output bit to data7 */
1128                 ret = af9013_wr_reg_bits(state, 0xd500, 3, 1, 1);
1129                 if (ret)
1130                         goto err;
1131
1132                 /* AF9013 set mpeg to full speed */
1133                 ret = af9013_wr_reg_bits(state, 0xd502, 4, 1, 1);
1134                 if (ret)
1135                         goto err;
1136         }
1137
1138         ret = af9013_wr_reg_bits(state, 0xd520, 4, 1, 1);
1139         if (ret)
1140                 goto err;
1141
1142         /* load OFSM settings */
1143         dbg("%s: load ofsm settings", __func__);
1144         len = ARRAY_SIZE(ofsm_init);
1145         init = ofsm_init;
1146         for (i = 0; i < len; i++) {
1147                 ret = af9013_wr_reg_bits(state, init[i].addr, init[i].pos,
1148                         init[i].len, init[i].val);
1149                 if (ret)
1150                         goto err;
1151         }
1152
1153         /* load tuner specific settings */
1154         dbg("%s: load tuner specific settings", __func__);
1155         switch (state->config.tuner) {
1156         case AF9013_TUNER_MXL5003D:
1157                 len = ARRAY_SIZE(tuner_init_mxl5003d);
1158                 init = tuner_init_mxl5003d;
1159                 break;
1160         case AF9013_TUNER_MXL5005D:
1161         case AF9013_TUNER_MXL5005R:
1162         case AF9013_TUNER_MXL5007T:
1163                 len = ARRAY_SIZE(tuner_init_mxl5005);
1164                 init = tuner_init_mxl5005;
1165                 break;
1166         case AF9013_TUNER_ENV77H11D5:
1167                 len = ARRAY_SIZE(tuner_init_env77h11d5);
1168                 init = tuner_init_env77h11d5;
1169                 break;
1170         case AF9013_TUNER_MT2060:
1171                 len = ARRAY_SIZE(tuner_init_mt2060);
1172                 init = tuner_init_mt2060;
1173                 break;
1174         case AF9013_TUNER_MC44S803:
1175                 len = ARRAY_SIZE(tuner_init_mc44s803);
1176                 init = tuner_init_mc44s803;
1177                 break;
1178         case AF9013_TUNER_QT1010:
1179         case AF9013_TUNER_QT1010A:
1180                 len = ARRAY_SIZE(tuner_init_qt1010);
1181                 init = tuner_init_qt1010;
1182                 break;
1183         case AF9013_TUNER_MT2060_2:
1184                 len = ARRAY_SIZE(tuner_init_mt2060_2);
1185                 init = tuner_init_mt2060_2;
1186                 break;
1187         case AF9013_TUNER_TDA18271:
1188         case AF9013_TUNER_TDA18218:
1189                 len = ARRAY_SIZE(tuner_init_tda18271);
1190                 init = tuner_init_tda18271;
1191                 break;
1192         case AF9013_TUNER_UNKNOWN:
1193         default:
1194                 len = ARRAY_SIZE(tuner_init_unknown);
1195                 init = tuner_init_unknown;
1196                 break;
1197         }
1198
1199         for (i = 0; i < len; i++) {
1200                 ret = af9013_wr_reg_bits(state, init[i].addr, init[i].pos,
1201                         init[i].len, init[i].val);
1202                 if (ret)
1203                         goto err;
1204         }
1205
1206         /* TS mode */
1207         ret = af9013_wr_reg_bits(state, 0xd500, 1, 2, state->config.ts_mode);
1208         if (ret)
1209                 goto err;
1210
1211         /* enable lock led */
1212         ret = af9013_wr_reg_bits(state, 0xd730, 0, 1, 1);
1213         if (ret)
1214                 goto err;
1215
1216         /* check if we support signal strength */
1217         if (!state->signal_strength_en) {
1218                 ret = af9013_rd_reg_bits(state, 0x9bee, 0, 1,
1219                         &state->signal_strength_en);
1220                 if (ret)
1221                         goto err;
1222         }
1223
1224         /* read values needed for signal strength calculation */
1225         if (state->signal_strength_en && !state->rf_50) {
1226                 ret = af9013_rd_reg(state, 0x9bbd, &state->rf_50);
1227                 if (ret)
1228                         goto err;
1229
1230                 ret = af9013_rd_reg(state, 0x9bd0, &state->rf_80);
1231                 if (ret)
1232                         goto err;
1233
1234                 ret = af9013_rd_reg(state, 0x9be2, &state->if_50);
1235                 if (ret)
1236                         goto err;
1237
1238                 ret = af9013_rd_reg(state, 0x9be4, &state->if_80);
1239                 if (ret)
1240                         goto err;
1241         }
1242
1243         /* SNR */
1244         ret = af9013_wr_reg(state, 0xd2e2, 1);
1245         if (ret)
1246                 goto err;
1247
1248         /* BER / UCB */
1249         buf[0] = (10000 >> 0) & 0xff;
1250         buf[1] = (10000 >> 8) & 0xff;
1251         ret = af9013_wr_regs(state, 0xd385, buf, 2);
1252         if (ret)
1253                 goto err;
1254
1255         /* enable FEC monitor */
1256         ret = af9013_wr_reg_bits(state, 0xd392, 1, 1, 1);
1257         if (ret)
1258                 goto err;
1259
1260         state->first_tune = true;
1261         schedule_delayed_work(&state->statistics_work, msecs_to_jiffies(400));
1262
1263         return ret;
1264 err:
1265         dbg("%s: failed=%d", __func__, ret);
1266         return ret;
1267 }
1268
1269 static int af9013_sleep(struct dvb_frontend *fe)
1270 {
1271         struct af9013_state *state = fe->demodulator_priv;
1272         int ret;
1273
1274         dbg("%s", __func__);
1275
1276         /* stop statistics polling */
1277         cancel_delayed_work_sync(&state->statistics_work);
1278
1279         /* disable lock led */
1280         ret = af9013_wr_reg_bits(state, 0xd730, 0, 1, 0);
1281         if (ret)
1282                 goto err;
1283
1284         /* power off */
1285         ret = af9013_power_ctrl(state, 0);
1286         if (ret)
1287                 goto err;
1288
1289         return ret;
1290 err:
1291         dbg("%s: failed=%d", __func__, ret);
1292         return ret;
1293 }
1294
1295 static int af9013_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
1296 {
1297         int ret;
1298         struct af9013_state *state = fe->demodulator_priv;
1299
1300         dbg("%s: enable=%d", __func__, enable);
1301
1302         /* gate already open or close */
1303         if (state->i2c_gate_state == enable)
1304                 return 0;
1305
1306         if (state->config.ts_mode == AF9013_TS_USB)
1307                 ret = af9013_wr_reg_bits(state, 0xd417, 3, 1, enable);
1308         else
1309                 ret = af9013_wr_reg_bits(state, 0xd607, 2, 1, enable);
1310         if (ret)
1311                 goto err;
1312
1313         state->i2c_gate_state = enable;
1314
1315         return ret;
1316 err:
1317         dbg("%s: failed=%d", __func__, ret);
1318         return ret;
1319 }
1320
1321 static void af9013_release(struct dvb_frontend *fe)
1322 {
1323         struct af9013_state *state = fe->demodulator_priv;
1324         kfree(state);
1325 }
1326
1327 static struct dvb_frontend_ops af9013_ops;
1328
1329 static int af9013_download_firmware(struct af9013_state *state)
1330 {
1331         int i, len, remaining, ret;
1332         const struct firmware *fw;
1333         u16 checksum = 0;
1334         u8 val;
1335         u8 fw_params[4];
1336         u8 *fw_file = AF9013_DEFAULT_FIRMWARE;
1337
1338         msleep(100);
1339         /* check whether firmware is already running */
1340         ret = af9013_rd_reg(state, 0x98be, &val);
1341         if (ret)
1342                 goto err;
1343         else
1344                 dbg("%s: firmware status=%02x", __func__, val);
1345
1346         if (val == 0x0c) /* fw is running, no need for download */
1347                 goto exit;
1348
1349         info("found a '%s' in cold state, will try to load a firmware",
1350                 af9013_ops.info.name);
1351
1352         /* request the firmware, this will block and timeout */
1353         ret = request_firmware(&fw, fw_file, state->i2c->dev.parent);
1354         if (ret) {
1355                 err("did not find the firmware file. (%s) "
1356                         "Please see linux/Documentation/dvb/ for more details" \
1357                         " on firmware-problems. (%d)",
1358                         fw_file, ret);
1359                 goto err;
1360         }
1361
1362         info("downloading firmware from file '%s'", fw_file);
1363
1364         /* calc checksum */
1365         for (i = 0; i < fw->size; i++)
1366                 checksum += fw->data[i];
1367
1368         fw_params[0] = checksum >> 8;
1369         fw_params[1] = checksum & 0xff;
1370         fw_params[2] = fw->size >> 8;
1371         fw_params[3] = fw->size & 0xff;
1372
1373         /* write fw checksum & size */
1374         ret = af9013_write_ofsm_regs(state, 0x50fc,
1375                 fw_params, sizeof(fw_params));
1376         if (ret)
1377                 goto err_release;
1378
1379         #define FW_ADDR 0x5100 /* firmware start address */
1380         #define LEN_MAX 16 /* max packet size */
1381         for (remaining = fw->size; remaining > 0; remaining -= LEN_MAX) {
1382                 len = remaining;
1383                 if (len > LEN_MAX)
1384                         len = LEN_MAX;
1385
1386                 ret = af9013_write_ofsm_regs(state,
1387                         FW_ADDR + fw->size - remaining,
1388                         (u8 *) &fw->data[fw->size - remaining], len);
1389                 if (ret) {
1390                         err("firmware download failed:%d", ret);
1391                         goto err_release;
1392                 }
1393         }
1394
1395         /* request boot firmware */
1396         ret = af9013_wr_reg(state, 0xe205, 1);
1397         if (ret)
1398                 goto err_release;
1399
1400         for (i = 0; i < 15; i++) {
1401                 msleep(100);
1402
1403                 /* check firmware status */
1404                 ret = af9013_rd_reg(state, 0x98be, &val);
1405                 if (ret)
1406                         goto err_release;
1407
1408                 dbg("%s: firmware status=%02x", __func__, val);
1409
1410                 if (val == 0x0c || val == 0x04) /* success or fail */
1411                         break;
1412         }
1413
1414         if (val == 0x04) {
1415                 err("firmware did not run");
1416                 ret = -ENODEV;
1417         } else if (val != 0x0c) {
1418                 err("firmware boot timeout");
1419                 ret = -ENODEV;
1420         }
1421
1422 err_release:
1423         release_firmware(fw);
1424 err:
1425 exit:
1426         if (!ret)
1427                 info("found a '%s' in warm state.", af9013_ops.info.name);
1428         return ret;
1429 }
1430
1431 struct dvb_frontend *af9013_attach(const struct af9013_config *config,
1432         struct i2c_adapter *i2c)
1433 {
1434         int ret;
1435         struct af9013_state *state = NULL;
1436         u8 buf[4], i;
1437
1438         /* allocate memory for the internal state */
1439         state = kzalloc(sizeof(struct af9013_state), GFP_KERNEL);
1440         if (state == NULL)
1441                 goto err;
1442
1443         /* setup the state */
1444         state->i2c = i2c;
1445         memcpy(&state->config, config, sizeof(struct af9013_config));
1446
1447         /* download firmware */
1448         if (state->config.ts_mode != AF9013_TS_USB) {
1449                 ret = af9013_download_firmware(state);
1450                 if (ret)
1451                         goto err;
1452         }
1453
1454         /* firmware version */
1455         ret = af9013_rd_regs(state, 0x5103, buf, 4);
1456         if (ret)
1457                 goto err;
1458
1459         info("firmware version %d.%d.%d.%d", buf[0], buf[1], buf[2], buf[3]);
1460
1461         /* set GPIOs */
1462         for (i = 0; i < sizeof(state->config.gpio); i++) {
1463                 ret = af9013_set_gpio(state, i, state->config.gpio[i]);
1464                 if (ret)
1465                         goto err;
1466         }
1467
1468         /* create dvb_frontend */
1469         memcpy(&state->fe.ops, &af9013_ops,
1470                 sizeof(struct dvb_frontend_ops));
1471         state->fe.demodulator_priv = state;
1472
1473         INIT_DELAYED_WORK(&state->statistics_work, af9013_statistics_work);
1474
1475         return &state->fe;
1476 err:
1477         kfree(state);
1478         return NULL;
1479 }
1480 EXPORT_SYMBOL(af9013_attach);
1481
1482 static struct dvb_frontend_ops af9013_ops = {
1483         .delsys = { SYS_DVBT },
1484         .info = {
1485                 .name = "Afatech AF9013",
1486                 .frequency_min = 174000000,
1487                 .frequency_max = 862000000,
1488                 .frequency_stepsize = 250000,
1489                 .frequency_tolerance = 0,
1490                 .caps = FE_CAN_FEC_1_2 |
1491                         FE_CAN_FEC_2_3 |
1492                         FE_CAN_FEC_3_4 |
1493                         FE_CAN_FEC_5_6 |
1494                         FE_CAN_FEC_7_8 |
1495                         FE_CAN_FEC_AUTO |
1496                         FE_CAN_QPSK |
1497                         FE_CAN_QAM_16 |
1498                         FE_CAN_QAM_64 |
1499                         FE_CAN_QAM_AUTO |
1500                         FE_CAN_TRANSMISSION_MODE_AUTO |
1501                         FE_CAN_GUARD_INTERVAL_AUTO |
1502                         FE_CAN_HIERARCHY_AUTO |
1503                         FE_CAN_RECOVER |
1504                         FE_CAN_MUTE_TS
1505         },
1506
1507         .release = af9013_release,
1508
1509         .init = af9013_init,
1510         .sleep = af9013_sleep,
1511
1512         .get_tune_settings = af9013_get_tune_settings,
1513         .set_frontend = af9013_set_frontend,
1514         .get_frontend = af9013_get_frontend,
1515
1516         .read_status = af9013_read_status,
1517         .read_snr = af9013_read_snr,
1518         .read_signal_strength = af9013_read_signal_strength,
1519         .read_ber = af9013_read_ber,
1520         .read_ucblocks = af9013_read_ucblocks,
1521
1522         .i2c_gate_ctrl = af9013_i2c_gate_ctrl,
1523 };
1524
1525 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1526 MODULE_DESCRIPTION("Afatech AF9013 DVB-T demodulator driver");
1527 MODULE_LICENSE("GPL");