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         struct af9013_state *state = container_of(work,
 518                 struct af9013_state, statistics_work.work);
 519         unsigned int next_msec;
 520
 521         /* update only signal strength when demod is not locked */
 522         if (!(state->fe_status & FE_HAS_LOCK)) {
 523                 state->statistics_step = 0;
 524                 state->ber = 0;
 525                 state->snr = 0;
 526         }
 527
 528         switch (state->statistics_step) {
 529         default:
 530                 state->statistics_step = 0;
 531         case 0:
 532                 af9013_statistics_signal_strength(&state->fe);
 533                 state->statistics_step++;
 534                 next_msec = 300;
 535                 break;
 536         case 1:
 537                 af9013_statistics_snr_start(&state->fe);
 538                 state->statistics_step++;
 539                 next_msec = 200;
 540                 break;
 541         case 2:
 542                 af9013_statistics_ber_unc_start(&state->fe);
 543                 state->statistics_step++;
 544                 next_msec = 1000;
 545                 break;
 546         case 3:
 547                 af9013_statistics_snr_result(&state->fe);
 548                 state->statistics_step++;
 549                 next_msec = 400;
 550                 break;
 551         case 4:
 552                 af9013_statistics_ber_unc_result(&state->fe);
 553                 state->statistics_step++;
 554                 next_msec = 100;
 555                 break;
 556         }
 557
 558         schedule_delayed_work(&state->statistics_work,
 559                 msecs_to_jiffies(next_msec));
 560 }
 561
 562 static int af9013_get_tune_settings(struct dvb_frontend *fe,
 563         struct dvb_frontend_tune_settings *fesettings)
 564 {
 565         fesettings->min_delay_ms = 800;
 566         fesettings->step_size = 0;
 567         fesettings->max_drift = 0;
 568
 569         return 0;
 570 }
 571
 572 static int af9013_set_frontend(struct dvb_frontend *fe)
 573 {
 574         struct af9013_state *state = fe->demodulator_priv;
 575         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 576         int ret, i, sampling_freq;
 577         bool auto_mode, spec_inv;
 578         u8 buf[6];
 579         u32 if_frequency, freq_cw;
 580
 581         dbg("%s: frequency=%d bandwidth_hz=%d", __func__,
 582                 c->frequency, c->bandwidth_hz);
 583
 584         /* program tuner */
 585         if (fe->ops.tuner_ops.set_params)
 586                 fe->ops.tuner_ops.set_params(fe);
 587
 588         /* program CFOE coefficients */
 589         if (c->bandwidth_hz != state->bandwidth_hz) {
 590                 for (i = 0; i < ARRAY_SIZE(coeff_lut); i++) {
 591                         if (coeff_lut[i].clock == state->config.clock &&
 592                                 coeff_lut[i].bandwidth_hz == c->bandwidth_hz) {
 593                                 break;
 594                         }
 595                 }
 596
 597                 ret = af9013_wr_regs(state, 0xae00, coeff_lut[i].val,
 598                         sizeof(coeff_lut[i].val));
 599         }
 600
 601         /* program frequency control */
 602         if (c->bandwidth_hz != state->bandwidth_hz || state->first_tune) {
 603                 /* get used IF frequency */
 604                 if (fe->ops.tuner_ops.get_if_frequency)
 605                         fe->ops.tuner_ops.get_if_frequency(fe, &if_frequency);
 606                 else
 607                         if_frequency = state->config.if_frequency;
 608
 609                 sampling_freq = if_frequency;
 610
 611                 while (sampling_freq > (state->config.clock / 2))
 612                         sampling_freq -= state->config.clock;
 613
 614                 if (sampling_freq < 0) {
 615                         sampling_freq *= -1;
 616                         spec_inv = state->config.spec_inv;
 617                 } else {
 618                         spec_inv = !state->config.spec_inv;
 619                 }
 620
 621                 freq_cw = af913_div(sampling_freq, state->config.clock, 23);
 622
 623                 if (spec_inv)
 624                         freq_cw = 0x800000 - freq_cw;
 625
 626                 buf[0] = (freq_cw >>  0) & 0xff;
 627                 buf[1] = (freq_cw >>  8) & 0xff;
 628                 buf[2] = (freq_cw >> 16) & 0x7f;
 629
 630                 freq_cw = 0x800000 - freq_cw;
 631
 632                 buf[3] = (freq_cw >>  0) & 0xff;
 633                 buf[4] = (freq_cw >>  8) & 0xff;
 634                 buf[5] = (freq_cw >> 16) & 0x7f;
 635
 636                 ret = af9013_wr_regs(state, 0xd140, buf, 3);
 637                 if (ret)
 638                         goto err;
 639
 640                 ret = af9013_wr_regs(state, 0x9be7, buf, 6);
 641                 if (ret)
 642                         goto err;
 643         }
 644
 645         /* clear TPS lock flag */
 646         ret = af9013_wr_reg_bits(state, 0xd330, 3, 1, 1);
 647         if (ret)
 648                 goto err;
 649
 650         /* clear MPEG2 lock flag */
 651         ret = af9013_wr_reg_bits(state, 0xd507, 6, 1, 0);
 652         if (ret)
 653                 goto err;
 654
 655         /* empty channel function */
 656         ret = af9013_wr_reg_bits(state, 0x9bfe, 0, 1, 0);
 657         if (ret)
 658                 goto err;
 659
 660         /* empty DVB-T channel function */
 661         ret = af9013_wr_reg_bits(state, 0x9bc2, 0, 1, 0);
 662         if (ret)
 663                 goto err;
 664
 665         /* transmission parameters */
 666         auto_mode = false;
 667         memset(buf, 0, 3);
 668
 669         switch (c->transmission_mode) {
 670         case TRANSMISSION_MODE_AUTO:
 671                 auto_mode = 1;
 672                 break;
 673         case TRANSMISSION_MODE_2K:
 674                 break;
 675         case TRANSMISSION_MODE_8K:
 676                 buf[0] |= (1 << 0);
 677                 break;
 678         default:
 679                 dbg("%s: invalid transmission_mode", __func__);
 680                 auto_mode = 1;
 681         }
 682
 683         switch (c->guard_interval) {
 684         case GUARD_INTERVAL_AUTO:
 685                 auto_mode = 1;
 686                 break;
 687         case GUARD_INTERVAL_1_32:
 688                 break;
 689         case GUARD_INTERVAL_1_16:
 690                 buf[0] |= (1 << 2);
 691                 break;
 692         case GUARD_INTERVAL_1_8:
 693                 buf[0] |= (2 << 2);
 694                 break;
 695         case GUARD_INTERVAL_1_4:
 696                 buf[0] |= (3 << 2);
 697                 break;
 698         default:
 699                 dbg("%s: invalid guard_interval", __func__);
 700                 auto_mode = 1;
 701         }
 702
 703         switch (c->hierarchy) {
 704         case HIERARCHY_AUTO:
 705                 auto_mode = 1;
 706                 break;
 707         case HIERARCHY_NONE:
 708                 break;
 709         case HIERARCHY_1:
 710                 buf[0] |= (1 << 4);
 711                 break;
 712         case HIERARCHY_2:
 713                 buf[0] |= (2 << 4);
 714                 break;
 715         case HIERARCHY_4:
 716                 buf[0] |= (3 << 4);
 717                 break;
 718         default:
 719                 dbg("%s: invalid hierarchy", __func__);
 720                 auto_mode = 1;
 721         };
 722
 723         switch (c->modulation) {
 724         case QAM_AUTO:
 725                 auto_mode = 1;
 726                 break;
 727         case QPSK:
 728                 break;
 729         case QAM_16:
 730                 buf[1] |= (1 << 6);
 731                 break;
 732         case QAM_64:
 733                 buf[1] |= (2 << 6);
 734                 break;
 735         default:
 736                 dbg("%s: invalid modulation", __func__);
 737                 auto_mode = 1;
 738         }
 739
 740         /* Use HP. How and which case we can switch to LP? */
 741         buf[1] |= (1 << 4);
 742
 743         switch (c->code_rate_HP) {
 744         case FEC_AUTO:
 745                 auto_mode = 1;
 746                 break;
 747         case FEC_1_2:
 748                 break;
 749         case FEC_2_3:
 750                 buf[2] |= (1 << 0);
 751                 break;
 752         case FEC_3_4:
 753                 buf[2] |= (2 << 0);
 754                 break;
 755         case FEC_5_6:
 756                 buf[2] |= (3 << 0);
 757                 break;
 758         case FEC_7_8:
 759                 buf[2] |= (4 << 0);
 760                 break;
 761         default:
 762                 dbg("%s: invalid code_rate_HP", __func__);
 763                 auto_mode = 1;
 764         }
 765
 766         switch (c->code_rate_LP) {
 767         case FEC_AUTO:
 768                 auto_mode = 1;
 769                 break;
 770         case FEC_1_2:
 771                 break;
 772         case FEC_2_3:
 773                 buf[2] |= (1 << 3);
 774                 break;
 775         case FEC_3_4:
 776                 buf[2] |= (2 << 3);
 777                 break;
 778         case FEC_5_6:
 779                 buf[2] |= (3 << 3);
 780                 break;
 781         case FEC_7_8:
 782                 buf[2] |= (4 << 3);
 783                 break;
 784         case FEC_NONE:
 785                 break;
 786         default:
 787                 dbg("%s: invalid code_rate_LP", __func__);
 788                 auto_mode = 1;
 789         }
 790
 791         switch (c->bandwidth_hz) {
 792         case 6000000:
 793                 break;
 794         case 7000000:
 795                 buf[1] |= (1 << 2);
 796                 break;
 797         case 8000000:
 798                 buf[1] |= (2 << 2);
 799                 break;
 800         default:
 801                 dbg("%s: invalid bandwidth_hz", __func__);
 802                 ret = -EINVAL;
 803                 goto err;
 804         }
 805
 806         ret = af9013_wr_regs(state, 0xd3c0, buf, 3);
 807         if (ret)
 808                 goto err;
 809
 810         if (auto_mode) {
 811                 /* clear easy mode flag */
 812                 ret = af9013_wr_reg(state, 0xaefd, 0);
 813                 if (ret)
 814                         goto err;
 815
 816                 dbg("%s: auto params", __func__);
 817         } else {
 818                 /* set easy mode flag */
 819                 ret = af9013_wr_reg(state, 0xaefd, 1);
 820                 if (ret)
 821                         goto err;
 822
 823                 ret = af9013_wr_reg(state, 0xaefe, 0);
 824                 if (ret)
 825                         goto err;
 826
 827                 dbg("%s: manual params", __func__);
 828         }
 829
 830         /* tune */
 831         ret = af9013_wr_reg(state, 0xffff, 0);
 832         if (ret)
 833                 goto err;
 834
 835         state->bandwidth_hz = c->bandwidth_hz;
 836         state->set_frontend_jiffies = jiffies;
 837         state->first_tune = false;
 838
 839         return ret;
 840 err:
 841         dbg("%s: failed=%d", __func__, ret);
 842         return ret;
 843 }
 844
 845 static int af9013_get_frontend(struct dvb_frontend *fe)
 846 {
 847         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 848         struct af9013_state *state = fe->demodulator_priv;
 849         int ret;
 850         u8 buf[3];
 851
 852         dbg("%s", __func__);
 853
 854         ret = af9013_rd_regs(state, 0xd3c0, buf, 3);
 855         if (ret)
 856                 goto err;
 857
 858         switch ((buf[1] >> 6) & 3) {
 859         case 0:
 860                 c->modulation = QPSK;
 861                 break;
 862         case 1:
 863                 c->modulation = QAM_16;
 864                 break;
 865         case 2:
 866                 c->modulation = QAM_64;
 867                 break;
 868         }
 869
 870         switch ((buf[0] >> 0) & 3) {
 871         case 0:
 872                 c->transmission_mode = TRANSMISSION_MODE_2K;
 873                 break;
 874         case 1:
 875                 c->transmission_mode = TRANSMISSION_MODE_8K;
 876         }
 877
 878         switch ((buf[0] >> 2) & 3) {
 879         case 0:
 880                 c->guard_interval = GUARD_INTERVAL_1_32;
 881                 break;
 882         case 1:
 883                 c->guard_interval = GUARD_INTERVAL_1_16;
 884                 break;
 885         case 2:
 886                 c->guard_interval = GUARD_INTERVAL_1_8;
 887                 break;
 888         case 3:
 889                 c->guard_interval = GUARD_INTERVAL_1_4;
 890                 break;
 891         }
 892
 893         switch ((buf[0] >> 4) & 7) {
 894         case 0:
 895                 c->hierarchy = HIERARCHY_NONE;
 896                 break;
 897         case 1:
 898                 c->hierarchy = HIERARCHY_1;
 899                 break;
 900         case 2:
 901                 c->hierarchy = HIERARCHY_2;
 902                 break;
 903         case 3:
 904                 c->hierarchy = HIERARCHY_4;
 905                 break;
 906         }
 907
 908         switch ((buf[2] >> 0) & 7) {
 909         case 0:
 910                 c->code_rate_HP = FEC_1_2;
 911                 break;
 912         case 1:
 913                 c->code_rate_HP = FEC_2_3;
 914                 break;
 915         case 2:
 916                 c->code_rate_HP = FEC_3_4;
 917                 break;
 918         case 3:
 919                 c->code_rate_HP = FEC_5_6;
 920                 break;
 921         case 4:
 922                 c->code_rate_HP = FEC_7_8;
 923                 break;
 924         }
 925
 926         switch ((buf[2] >> 3) & 7) {
 927         case 0:
 928                 c->code_rate_LP = FEC_1_2;
 929                 break;
 930         case 1:
 931                 c->code_rate_LP = FEC_2_3;
 932                 break;
 933         case 2:
 934                 c->code_rate_LP = FEC_3_4;
 935                 break;
 936         case 3:
 937                 c->code_rate_LP = FEC_5_6;
 938                 break;
 939         case 4:
 940                 c->code_rate_LP = FEC_7_8;
 941                 break;
 942         }
 943
 944         switch ((buf[1] >> 2) & 3) {
 945         case 0:
 946                 c->bandwidth_hz = 6000000;
 947                 break;
 948         case 1:
 949                 c->bandwidth_hz = 7000000;
 950                 break;
 951         case 2:
 952                 c->bandwidth_hz = 8000000;
 953                 break;
 954         }
 955
 956         return ret;
 957 err:
 958         dbg("%s: failed=%d", __func__, ret);
 959         return ret;
 960 }
 961
 962 static int af9013_read_status(struct dvb_frontend *fe, fe_status_t *status)
 963 {
 964         struct af9013_state *state = fe->demodulator_priv;
 965         int ret;
 966         u8 tmp;
 967
 968         /*
 969          * Return status from the cache if it is younger than 2000ms with the
 970          * exception of last tune is done during 4000ms.
 971          */
 972         if (time_is_after_jiffies(
 973                 state->read_status_jiffies + msecs_to_jiffies(2000)) &&
 974                 time_is_before_jiffies(
 975                 state->set_frontend_jiffies + msecs_to_jiffies(4000))
 976         ) {
 977                         *status = state->fe_status;
 978                         return 0;
 979         } else {
 980                 *status = 0;
 981         }
 982
 983         /* MPEG2 lock */
 984         ret = af9013_rd_reg_bits(state, 0xd507, 6, 1, &tmp);
 985         if (ret)
 986                 goto err;
 987
 988         if (tmp)
 989                 *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI |
 990                         FE_HAS_SYNC | FE_HAS_LOCK;
 991
 992         if (!*status) {
 993                 /* TPS lock */
 994                 ret = af9013_rd_reg_bits(state, 0xd330, 3, 1, &tmp);
 995                 if (ret)
 996                         goto err;
 997
 998                 if (tmp)
 999                         *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER |
1000                                 FE_HAS_VITERBI;
1001         }
1002
1003         state->fe_status = *status;
1004         state->read_status_jiffies = jiffies;
1005
1006         return ret;
1007 err:
1008         dbg("%s: failed=%d", __func__, ret);
1009         return ret;
1010 }
1011
1012 static int af9013_read_snr(struct dvb_frontend *fe, u16 *snr)
1013 {
1014         struct af9013_state *state = fe->demodulator_priv;
1015         *snr = state->snr;
1016         return 0;
1017 }
1018
1019 static int af9013_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
1020 {
1021         struct af9013_state *state = fe->demodulator_priv;
1022         *strength = state->signal_strength;
1023         return 0;
1024 }
1025
1026 static int af9013_read_ber(struct dvb_frontend *fe, u32 *ber)
1027 {
1028         struct af9013_state *state = fe->demodulator_priv;
1029         *ber = state->ber;
1030         return 0;
1031 }
1032
1033 static int af9013_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
1034 {
1035         struct af9013_state *state = fe->demodulator_priv;
1036         *ucblocks = state->ucblocks;
1037         return 0;
1038 }
1039
1040 static int af9013_init(struct dvb_frontend *fe)
1041 {
1042         struct af9013_state *state = fe->demodulator_priv;
1043         int ret, i, len;
1044         u8 buf[3], tmp;
1045         u32 adc_cw;
1046         const struct af9013_reg_bit *init;
1047
1048         dbg("%s", __func__);
1049
1050         /* power on */
1051         ret = af9013_power_ctrl(state, 1);
1052         if (ret)
1053                 goto err;
1054
1055         /* enable ADC */
1056         ret = af9013_wr_reg(state, 0xd73a, 0xa4);
1057         if (ret)
1058                 goto err;
1059
1060         /* write API version to firmware */
1061         ret = af9013_wr_regs(state, 0x9bf2, state->config.api_version, 4);
1062         if (ret)
1063                 goto err;
1064
1065         /* program ADC control */
1066         switch (state->config.clock) {
1067         case 28800000: /* 28.800 MHz */
1068                 tmp = 0;
1069                 break;
1070         case 20480000: /* 20.480 MHz */
1071                 tmp = 1;
1072                 break;
1073         case 28000000: /* 28.000 MHz */
1074                 tmp = 2;
1075                 break;
1076         case 25000000: /* 25.000 MHz */
1077                 tmp = 3;
1078                 break;
1079         default:
1080                 err("invalid clock");
1081                 return -EINVAL;
1082         }
1083
1084         adc_cw = af913_div(state->config.clock, 1000000ul, 19);
1085         buf[0] = (adc_cw >>  0) & 0xff;
1086         buf[1] = (adc_cw >>  8) & 0xff;
1087         buf[2] = (adc_cw >> 16) & 0xff;
1088
1089         ret = af9013_wr_regs(state, 0xd180, buf, 3);
1090         if (ret)
1091                 goto err;
1092
1093         ret = af9013_wr_reg_bits(state, 0x9bd2, 0, 4, tmp);
1094         if (ret)
1095                 goto err;
1096
1097         /* set I2C master clock */
1098         ret = af9013_wr_reg(state, 0xd416, 0x14);
1099         if (ret)
1100                 goto err;
1101
1102         /* set 16 embx */
1103         ret = af9013_wr_reg_bits(state, 0xd700, 1, 1, 1);
1104         if (ret)
1105                 goto err;
1106
1107         /* set no trigger */
1108         ret = af9013_wr_reg_bits(state, 0xd700, 2, 1, 0);
1109         if (ret)
1110                 goto err;
1111
1112         /* set read-update bit for constellation */
1113         ret = af9013_wr_reg_bits(state, 0xd371, 1, 1, 1);
1114         if (ret)
1115                 goto err;
1116
1117         /* settings for mp2if */
1118         if (state->config.ts_mode == AF9013_TS_USB) {
1119                 /* AF9015 split PSB to 1.5k + 0.5k */
1120                 ret = af9013_wr_reg_bits(state, 0xd50b, 2, 1, 1);
1121                 if (ret)
1122                         goto err;
1123         } else {
1124                 /* AF9013 change the output bit to data7 */
1125                 ret = af9013_wr_reg_bits(state, 0xd500, 3, 1, 1);
1126                 if (ret)
1127                         goto err;
1128
1129                 /* AF9013 set mpeg to full speed */
1130                 ret = af9013_wr_reg_bits(state, 0xd502, 4, 1, 1);
1131                 if (ret)
1132                         goto err;
1133         }
1134
1135         ret = af9013_wr_reg_bits(state, 0xd520, 4, 1, 1);
1136         if (ret)
1137                 goto err;
1138
1139         /* load OFSM settings */
1140         dbg("%s: load ofsm settings", __func__);
1141         len = ARRAY_SIZE(ofsm_init);
1142         init = ofsm_init;
1143         for (i = 0; i < len; i++) {
1144                 ret = af9013_wr_reg_bits(state, init[i].addr, init[i].pos,
1145                         init[i].len, init[i].val);
1146                 if (ret)
1147                         goto err;
1148         }
1149
1150         /* load tuner specific settings */
1151         dbg("%s: load tuner specific settings", __func__);
1152         switch (state->config.tuner) {
1153         case AF9013_TUNER_MXL5003D:
1154                 len = ARRAY_SIZE(tuner_init_mxl5003d);
1155                 init = tuner_init_mxl5003d;
1156                 break;
1157         case AF9013_TUNER_MXL5005D:
1158         case AF9013_TUNER_MXL5005R:
1159         case AF9013_TUNER_MXL5007T:
1160                 len = ARRAY_SIZE(tuner_init_mxl5005);
1161                 init = tuner_init_mxl5005;
1162                 break;
1163         case AF9013_TUNER_ENV77H11D5:
1164                 len = ARRAY_SIZE(tuner_init_env77h11d5);
1165                 init = tuner_init_env77h11d5;
1166                 break;
1167         case AF9013_TUNER_MT2060:
1168                 len = ARRAY_SIZE(tuner_init_mt2060);
1169                 init = tuner_init_mt2060;
1170                 break;
1171         case AF9013_TUNER_MC44S803:
1172                 len = ARRAY_SIZE(tuner_init_mc44s803);
1173                 init = tuner_init_mc44s803;
1174                 break;
1175         case AF9013_TUNER_QT1010:
1176         case AF9013_TUNER_QT1010A:
1177                 len = ARRAY_SIZE(tuner_init_qt1010);
1178                 init = tuner_init_qt1010;
1179                 break;
1180         case AF9013_TUNER_MT2060_2:
1181                 len = ARRAY_SIZE(tuner_init_mt2060_2);
1182                 init = tuner_init_mt2060_2;
1183                 break;
1184         case AF9013_TUNER_TDA18271:
1185         case AF9013_TUNER_TDA18218:
1186                 len = ARRAY_SIZE(tuner_init_tda18271);
1187                 init = tuner_init_tda18271;
1188                 break;
1189         case AF9013_TUNER_UNKNOWN:
1190         default:
1191                 len = ARRAY_SIZE(tuner_init_unknown);
1192                 init = tuner_init_unknown;
1193                 break;
1194         }
1195
1196         for (i = 0; i < len; i++) {
1197                 ret = af9013_wr_reg_bits(state, init[i].addr, init[i].pos,
1198                         init[i].len, init[i].val);
1199                 if (ret)
1200                         goto err;
1201         }
1202
1203         /* TS mode */
1204         ret = af9013_wr_reg_bits(state, 0xd500, 1, 2, state->config.ts_mode);
1205         if (ret)
1206                 goto err;
1207
1208         /* enable lock led */
1209         ret = af9013_wr_reg_bits(state, 0xd730, 0, 1, 1);
1210         if (ret)
1211                 goto err;
1212
1213         /* check if we support signal strength */
1214         if (!state->signal_strength_en) {
1215                 ret = af9013_rd_reg_bits(state, 0x9bee, 0, 1,
1216                         &state->signal_strength_en);
1217                 if (ret)
1218                         goto err;
1219         }
1220
1221         /* read values needed for signal strength calculation */
1222         if (state->signal_strength_en && !state->rf_50) {
1223                 ret = af9013_rd_reg(state, 0x9bbd, &state->rf_50);
1224                 if (ret)
1225                         goto err;
1226
1227                 ret = af9013_rd_reg(state, 0x9bd0, &state->rf_80);
1228                 if (ret)
1229                         goto err;
1230
1231                 ret = af9013_rd_reg(state, 0x9be2, &state->if_50);
1232                 if (ret)
1233                         goto err;
1234
1235                 ret = af9013_rd_reg(state, 0x9be4, &state->if_80);
1236                 if (ret)
1237                         goto err;
1238         }
1239
1240         /* SNR */
1241         ret = af9013_wr_reg(state, 0xd2e2, 1);
1242         if (ret)
1243                 goto err;
1244
1245         /* BER / UCB */
1246         buf[0] = (10000 >> 0) & 0xff;
1247         buf[1] = (10000 >> 8) & 0xff;
1248         ret = af9013_wr_regs(state, 0xd385, buf, 2);
1249         if (ret)
1250                 goto err;
1251
1252         /* enable FEC monitor */
1253         ret = af9013_wr_reg_bits(state, 0xd392, 1, 1, 1);
1254         if (ret)
1255                 goto err;
1256
1257         state->first_tune = true;
1258         schedule_delayed_work(&state->statistics_work, msecs_to_jiffies(400));
1259
1260         return ret;
1261 err:
1262         dbg("%s: failed=%d", __func__, ret);
1263         return ret;
1264 }
1265
1266 static int af9013_sleep(struct dvb_frontend *fe)
1267 {
1268         struct af9013_state *state = fe->demodulator_priv;
1269         int ret;
1270
1271         dbg("%s", __func__);
1272
1273         /* stop statistics polling */
1274         cancel_delayed_work_sync(&state->statistics_work);
1275
1276         /* disable lock led */
1277         ret = af9013_wr_reg_bits(state, 0xd730, 0, 1, 0);
1278         if (ret)
1279                 goto err;
1280
1281         /* power off */
1282         ret = af9013_power_ctrl(state, 0);
1283         if (ret)
1284                 goto err;
1285
1286         return ret;
1287 err:
1288         dbg("%s: failed=%d", __func__, ret);
1289         return ret;
1290 }
1291
1292 static int af9013_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
1293 {
1294         int ret;
1295         struct af9013_state *state = fe->demodulator_priv;
1296
1297         dbg("%s: enable=%d", __func__, enable);
1298
1299         /* gate already open or close */
1300         if (state->i2c_gate_state == enable)
1301                 return 0;
1302
1303         if (state->config.ts_mode == AF9013_TS_USB)
1304                 ret = af9013_wr_reg_bits(state, 0xd417, 3, 1, enable);
1305         else
1306                 ret = af9013_wr_reg_bits(state, 0xd607, 2, 1, enable);
1307         if (ret)
1308                 goto err;
1309
1310         state->i2c_gate_state = enable;
1311
1312         return ret;
1313 err:
1314         dbg("%s: failed=%d", __func__, ret);
1315         return ret;
1316 }
1317
1318 static void af9013_release(struct dvb_frontend *fe)
1319 {
1320         struct af9013_state *state = fe->demodulator_priv;
1321         kfree(state);
1322 }
1323
1324 static struct dvb_frontend_ops af9013_ops;
1325
1326 static int af9013_download_firmware(struct af9013_state *state)
1327 {
1328         int i, len, remaining, ret;
1329         const struct firmware *fw;
1330         u16 checksum = 0;
1331         u8 val;
1332         u8 fw_params[4];
1333         u8 *fw_file = AF9013_DEFAULT_FIRMWARE;
1334
1335         msleep(100);
1336         /* check whether firmware is already running */
1337         ret = af9013_rd_reg(state, 0x98be, &val);
1338         if (ret)
1339                 goto err;
1340         else
1341                 dbg("%s: firmware status=%02x", __func__, val);
1342
1343         if (val == 0x0c) /* fw is running, no need for download */
1344                 goto exit;
1345
1346         info("found a '%s' in cold state, will try to load a firmware",
1347                 af9013_ops.info.name);
1348
1349         /* request the firmware, this will block and timeout */
1350         ret = request_firmware(&fw, fw_file, state->i2c->dev.parent);
1351         if (ret) {
1352                 err("did not find the firmware file. (%s) "
1353                         "Please see linux/Documentation/dvb/ for more details" \
1354                         " on firmware-problems. (%d)",
1355                         fw_file, ret);
1356                 goto err;
1357         }
1358
1359         info("downloading firmware from file '%s'", fw_file);
1360
1361         /* calc checksum */
1362         for (i = 0; i < fw->size; i++)
1363                 checksum += fw->data[i];
1364
1365         fw_params[0] = checksum >> 8;
1366         fw_params[1] = checksum & 0xff;
1367         fw_params[2] = fw->size >> 8;
1368         fw_params[3] = fw->size & 0xff;
1369
1370         /* write fw checksum & size */
1371         ret = af9013_write_ofsm_regs(state, 0x50fc,
1372                 fw_params, sizeof(fw_params));
1373         if (ret)
1374                 goto err_release;
1375
1376         #define FW_ADDR 0x5100 /* firmware start address */
1377         #define LEN_MAX 16 /* max packet size */
1378         for (remaining = fw->size; remaining > 0; remaining -= LEN_MAX) {
1379                 len = remaining;
1380                 if (len > LEN_MAX)
1381                         len = LEN_MAX;
1382
1383                 ret = af9013_write_ofsm_regs(state,
1384                         FW_ADDR + fw->size - remaining,
1385                         (u8 *) &fw->data[fw->size - remaining], len);
1386                 if (ret) {
1387                         err("firmware download failed:%d", ret);
1388                         goto err_release;
1389                 }
1390         }
1391
1392         /* request boot firmware */
1393         ret = af9013_wr_reg(state, 0xe205, 1);
1394         if (ret)
1395                 goto err_release;
1396
1397         for (i = 0; i < 15; i++) {
1398                 msleep(100);
1399
1400                 /* check firmware status */
1401                 ret = af9013_rd_reg(state, 0x98be, &val);
1402                 if (ret)
1403                         goto err_release;
1404
1405                 dbg("%s: firmware status=%02x", __func__, val);
1406
1407                 if (val == 0x0c || val == 0x04) /* success or fail */
1408                         break;
1409         }
1410
1411         if (val == 0x04) {
1412                 err("firmware did not run");
1413                 ret = -ENODEV;
1414         } else if (val != 0x0c) {
1415                 err("firmware boot timeout");
1416                 ret = -ENODEV;
1417         }
1418
1419 err_release:
1420         release_firmware(fw);
1421 err:
1422 exit:
1423         if (!ret)
1424                 info("found a '%s' in warm state.", af9013_ops.info.name);
1425         return ret;
1426 }
1427
1428 struct dvb_frontend *af9013_attach(const struct af9013_config *config,
1429         struct i2c_adapter *i2c)
1430 {
1431         int ret;
1432         struct af9013_state *state = NULL;
1433         u8 buf[4], i;
1434
1435         /* allocate memory for the internal state */
1436         state = kzalloc(sizeof(struct af9013_state), GFP_KERNEL);
1437         if (state == NULL)
1438                 goto err;
1439
1440         /* setup the state */
1441         state->i2c = i2c;
1442         memcpy(&state->config, config, sizeof(struct af9013_config));
1443
1444         /* download firmware */
1445         if (state->config.ts_mode != AF9013_TS_USB) {
1446                 ret = af9013_download_firmware(state);
1447                 if (ret)
1448                         goto err;
1449         }
1450
1451         /* firmware version */
1452         ret = af9013_rd_regs(state, 0x5103, buf, 4);
1453         if (ret)
1454                 goto err;
1455
1456         info("firmware version %d.%d.%d.%d", buf[0], buf[1], buf[2], buf[3]);
1457
1458         /* set GPIOs */
1459         for (i = 0; i < sizeof(state->config.gpio); i++) {
1460                 ret = af9013_set_gpio(state, i, state->config.gpio[i]);
1461                 if (ret)
1462                         goto err;
1463         }
1464
1465         /* create dvb_frontend */
1466         memcpy(&state->fe.ops, &af9013_ops,
1467                 sizeof(struct dvb_frontend_ops));
1468         state->fe.demodulator_priv = state;
1469
1470         INIT_DELAYED_WORK(&state->statistics_work, af9013_statistics_work);
1471
1472         return &state->fe;
1473 err:
1474         kfree(state);
1475         return NULL;
1476 }
1477 EXPORT_SYMBOL(af9013_attach);
1478
1479 static struct dvb_frontend_ops af9013_ops = {
1480         .delsys = { SYS_DVBT },
1481         .info = {
1482                 .name = "Afatech AF9013",
1483                 .frequency_min = 174000000,
1484                 .frequency_max = 862000000,
1485                 .frequency_stepsize = 250000,
1486                 .frequency_tolerance = 0,
1487                 .caps = FE_CAN_FEC_1_2 |
1488                         FE_CAN_FEC_2_3 |
1489                         FE_CAN_FEC_3_4 |
1490                         FE_CAN_FEC_5_6 |
1491                         FE_CAN_FEC_7_8 |
1492                         FE_CAN_FEC_AUTO |
1493                         FE_CAN_QPSK |
1494                         FE_CAN_QAM_16 |
1495                         FE_CAN_QAM_64 |
1496                         FE_CAN_QAM_AUTO |
1497                         FE_CAN_TRANSMISSION_MODE_AUTO |
1498                         FE_CAN_GUARD_INTERVAL_AUTO |
1499                         FE_CAN_HIERARCHY_AUTO |
1500                         FE_CAN_RECOVER |
1501                         FE_CAN_MUTE_TS
1502         },
1503
1504         .release = af9013_release,
1505
1506         .init = af9013_init,
1507         .sleep = af9013_sleep,
1508
1509         .get_tune_settings = af9013_get_tune_settings,
1510         .set_frontend = af9013_set_frontend,
1511         .get_frontend = af9013_get_frontend,
1512
1513         .read_status = af9013_read_status,
1514         .read_snr = af9013_read_snr,
1515         .read_signal_strength = af9013_read_signal_strength,
1516         .read_ber = af9013_read_ber,
1517         .read_ucblocks = af9013_read_ucblocks,
1518
1519         .i2c_gate_ctrl = af9013_i2c_gate_ctrl,
1520 };
1521
1522 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1523 MODULE_DESCRIPTION("Afatech AF9013 DVB-T demodulator driver");
1524 MODULE_LICENSE("GPL");