drivers/media/dvb/frontends/tda10071.c

   1 /*
   2  * NXP TDA10071 + Conexant CX24118A DVB-S/S2 demodulator + tuner driver
   3  *
   4  * Copyright (C) 2011 Antti Palosaari <crope@iki.fi>
   5  *
   6  *    This program is free software; you can redistribute it and/or modify
   7  *    it under the terms of the GNU General Public License as published by
   8  *    the Free Software Foundation; either version 2 of the License, or
   9  *    (at your option) any later version.
  10  *
  11  *    This program is distributed in the hope that it will be useful,
  12  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *    GNU General Public License for more details.
  15  *
  16  *    You should have received a copy of the GNU General Public License along
  17  *    with this program; if not, write to the Free Software Foundation, Inc.,
  18  *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21 #include "tda10071_priv.h"
  22
  23 static struct dvb_frontend_ops tda10071_ops;
  24
  25 /* write multiple registers */
  26 static int tda10071_wr_regs(struct tda10071_priv *priv, u8 reg, u8 *val,
  27         int len)
  28 {
  29         int ret;
  30         u8 buf[len+1];
  31         struct i2c_msg msg[1] = {
  32                 {
  33                         .addr = priv->cfg.i2c_address,
  34                         .flags = 0,
  35                         .len = sizeof(buf),
  36                         .buf = buf,
  37                 }
  38         };
  39
  40         buf[0] = reg;
  41         memcpy(&buf[1], val, len);
  42
  43         ret = i2c_transfer(priv->i2c, msg, 1);
  44         if (ret == 1) {
  45                 ret = 0;
  46         } else {
  47                 dev_warn(&priv->i2c->dev, "%s: i2c wr failed=%d reg=%02x " \
  48                                 "len=%d\n", KBUILD_MODNAME, ret, reg, len);
  49                 ret = -EREMOTEIO;
  50         }
  51         return ret;
  52 }
  53
  54 /* read multiple registers */
  55 static int tda10071_rd_regs(struct tda10071_priv *priv, u8 reg, u8 *val,
  56         int len)
  57 {
  58         int ret;
  59         u8 buf[len];
  60         struct i2c_msg msg[2] = {
  61                 {
  62                         .addr = priv->cfg.i2c_address,
  63                         .flags = 0,
  64                         .len = 1,
  65                         .buf = &reg,
  66                 }, {
  67                         .addr = priv->cfg.i2c_address,
  68                         .flags = I2C_M_RD,
  69                         .len = sizeof(buf),
  70                         .buf = buf,
  71                 }
  72         };
  73
  74         ret = i2c_transfer(priv->i2c, msg, 2);
  75         if (ret == 2) {
  76                 memcpy(val, buf, len);
  77                 ret = 0;
  78         } else {
  79                 dev_warn(&priv->i2c->dev, "%s: i2c rd failed=%d reg=%02x " \
  80                                 "len=%d\n", KBUILD_MODNAME, ret, reg, len);
  81                 ret = -EREMOTEIO;
  82         }
  83         return ret;
  84 }
  85
  86 /* write single register */
  87 static int tda10071_wr_reg(struct tda10071_priv *priv, u8 reg, u8 val)
  88 {
  89         return tda10071_wr_regs(priv, reg, &val, 1);
  90 }
  91
  92 /* read single register */
  93 static int tda10071_rd_reg(struct tda10071_priv *priv, u8 reg, u8 *val)
  94 {
  95         return tda10071_rd_regs(priv, reg, val, 1);
  96 }
  97
  98 /* write single register with mask */
  99 int tda10071_wr_reg_mask(struct tda10071_priv *priv, u8 reg, u8 val, u8 mask)
 100 {
 101         int ret;
 102         u8 tmp;
 103
 104         /* no need for read if whole reg is written */
 105         if (mask != 0xff) {
 106                 ret = tda10071_rd_regs(priv, reg, &tmp, 1);
 107                 if (ret)
 108                         return ret;
 109
 110                 val &= mask;
 111                 tmp &= ~mask;
 112                 val |= tmp;
 113         }
 114
 115         return tda10071_wr_regs(priv, reg, &val, 1);
 116 }
 117
 118 /* read single register with mask */
 119 int tda10071_rd_reg_mask(struct tda10071_priv *priv, u8 reg, u8 *val, u8 mask)
 120 {
 121         int ret, i;
 122         u8 tmp;
 123
 124         ret = tda10071_rd_regs(priv, reg, &tmp, 1);
 125         if (ret)
 126                 return ret;
 127
 128         tmp &= mask;
 129
 130         /* find position of the first bit */
 131         for (i = 0; i < 8; i++) {
 132                 if ((mask >> i) & 0x01)
 133                         break;
 134         }
 135         *val = tmp >> i;
 136
 137         return 0;
 138 }
 139
 140 /* execute firmware command */
 141 static int tda10071_cmd_execute(struct tda10071_priv *priv,
 142         struct tda10071_cmd *cmd)
 143 {
 144         int ret, i;
 145         u8 tmp;
 146
 147         if (!priv->warm) {
 148                 ret = -EFAULT;
 149                 goto error;
 150         }
 151
 152         /* write cmd and args for firmware */
 153         ret = tda10071_wr_regs(priv, 0x00, cmd->args, cmd->len);
 154         if (ret)
 155                 goto error;
 156
 157         /* start cmd execution */
 158         ret = tda10071_wr_reg(priv, 0x1f, 1);
 159         if (ret)
 160                 goto error;
 161
 162         /* wait cmd execution terminate */
 163         for (i = 1000, tmp = 1; i && tmp; i--) {
 164                 ret = tda10071_rd_reg(priv, 0x1f, &tmp);
 165                 if (ret)
 166                         goto error;
 167
 168                 usleep_range(200, 5000);
 169         }
 170
 171         dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
 172
 173         if (i == 0) {
 174                 ret = -ETIMEDOUT;
 175                 goto error;
 176         }
 177
 178         return ret;
 179 error:
 180         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 181         return ret;
 182 }
 183
 184 static int tda10071_set_tone(struct dvb_frontend *fe,
 185         fe_sec_tone_mode_t fe_sec_tone_mode)
 186 {
 187         struct tda10071_priv *priv = fe->demodulator_priv;
 188         struct tda10071_cmd cmd;
 189         int ret;
 190         u8 tone;
 191
 192         if (!priv->warm) {
 193                 ret = -EFAULT;
 194                 goto error;
 195         }
 196
 197         dev_dbg(&priv->i2c->dev, "%s: tone_mode=%d\n", __func__,
 198                         fe_sec_tone_mode);
 199
 200         switch (fe_sec_tone_mode) {
 201         case SEC_TONE_ON:
 202                 tone = 1;
 203                 break;
 204         case SEC_TONE_OFF:
 205                 tone = 0;
 206                 break;
 207         default:
 208                 dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_tone_mode\n",
 209                                 __func__);
 210                 ret = -EINVAL;
 211                 goto error;
 212         }
 213
 214         cmd.args[0] = CMD_LNB_PCB_CONFIG;
 215         cmd.args[1] = 0;
 216         cmd.args[2] = 0x00;
 217         cmd.args[3] = 0x00;
 218         cmd.args[4] = tone;
 219         cmd.len = 5;
 220         ret = tda10071_cmd_execute(priv, &cmd);
 221         if (ret)
 222                 goto error;
 223
 224         return ret;
 225 error:
 226         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 227         return ret;
 228 }
 229
 230 static int tda10071_set_voltage(struct dvb_frontend *fe,
 231         fe_sec_voltage_t fe_sec_voltage)
 232 {
 233         struct tda10071_priv *priv = fe->demodulator_priv;
 234         struct tda10071_cmd cmd;
 235         int ret;
 236         u8 voltage;
 237
 238         if (!priv->warm) {
 239                 ret = -EFAULT;
 240                 goto error;
 241         }
 242
 243         dev_dbg(&priv->i2c->dev, "%s: voltage=%d\n", __func__, fe_sec_voltage);
 244
 245         switch (fe_sec_voltage) {
 246         case SEC_VOLTAGE_13:
 247                 voltage = 0;
 248                 break;
 249         case SEC_VOLTAGE_18:
 250                 voltage = 1;
 251                 break;
 252         case SEC_VOLTAGE_OFF:
 253                 voltage = 0;
 254                 break;
 255         default:
 256                 dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_voltage\n",
 257                                 __func__);
 258                 ret = -EINVAL;
 259                 goto error;
 260         };
 261
 262         cmd.args[0] = CMD_LNB_SET_DC_LEVEL;
 263         cmd.args[1] = 0;
 264         cmd.args[2] = voltage;
 265         cmd.len = 3;
 266         ret = tda10071_cmd_execute(priv, &cmd);
 267         if (ret)
 268                 goto error;
 269
 270         return ret;
 271 error:
 272         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 273         return ret;
 274 }
 275
 276 static int tda10071_diseqc_send_master_cmd(struct dvb_frontend *fe,
 277         struct dvb_diseqc_master_cmd *diseqc_cmd)
 278 {
 279         struct tda10071_priv *priv = fe->demodulator_priv;
 280         struct tda10071_cmd cmd;
 281         int ret, i;
 282         u8 tmp;
 283
 284         if (!priv->warm) {
 285                 ret = -EFAULT;
 286                 goto error;
 287         }
 288
 289         dev_dbg(&priv->i2c->dev, "%s: msg_len=%d\n", __func__,
 290                         diseqc_cmd->msg_len);
 291
 292         if (diseqc_cmd->msg_len < 3 || diseqc_cmd->msg_len > 6) {
 293                 ret = -EINVAL;
 294                 goto error;
 295         }
 296
 297         /* wait LNB TX */
 298         for (i = 500, tmp = 0; i && !tmp; i--) {
 299                 ret = tda10071_rd_reg_mask(priv, 0x47, &tmp, 0x01);
 300                 if (ret)
 301                         goto error;
 302
 303                 usleep_range(10000, 20000);
 304         }
 305
 306         dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
 307
 308         if (i == 0) {
 309                 ret = -ETIMEDOUT;
 310                 goto error;
 311         }
 312
 313         ret = tda10071_wr_reg_mask(priv, 0x47, 0x00, 0x01);
 314         if (ret)
 315                 goto error;
 316
 317         cmd.args[0] = CMD_LNB_SEND_DISEQC;
 318         cmd.args[1] = 0;
 319         cmd.args[2] = 0;
 320         cmd.args[3] = 0;
 321         cmd.args[4] = 2;
 322         cmd.args[5] = 0;
 323         cmd.args[6] = diseqc_cmd->msg_len;
 324         memcpy(&cmd.args[7], diseqc_cmd->msg, diseqc_cmd->msg_len);
 325         cmd.len = 7 + diseqc_cmd->msg_len;
 326         ret = tda10071_cmd_execute(priv, &cmd);
 327         if (ret)
 328                 goto error;
 329
 330         return ret;
 331 error:
 332         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 333         return ret;
 334 }
 335
 336 static int tda10071_diseqc_recv_slave_reply(struct dvb_frontend *fe,
 337         struct dvb_diseqc_slave_reply *reply)
 338 {
 339         struct tda10071_priv *priv = fe->demodulator_priv;
 340         struct tda10071_cmd cmd;
 341         int ret, i;
 342         u8 tmp;
 343
 344         if (!priv->warm) {
 345                 ret = -EFAULT;
 346                 goto error;
 347         }
 348
 349         dev_dbg(&priv->i2c->dev, "%s:\n", __func__);
 350
 351         /* wait LNB RX */
 352         for (i = 500, tmp = 0; i && !tmp; i--) {
 353                 ret = tda10071_rd_reg_mask(priv, 0x47, &tmp, 0x02);
 354                 if (ret)
 355                         goto error;
 356
 357                 usleep_range(10000, 20000);
 358         }
 359
 360         dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
 361
 362         if (i == 0) {
 363                 ret = -ETIMEDOUT;
 364                 goto error;
 365         }
 366
 367         /* reply len */
 368         ret = tda10071_rd_reg(priv, 0x46, &tmp);
 369         if (ret)
 370                 goto error;
 371
 372         reply->msg_len = tmp & 0x1f; /* [4:0] */;
 373         if (reply->msg_len > sizeof(reply->msg))
 374                 reply->msg_len = sizeof(reply->msg); /* truncate API max */
 375
 376         /* read reply */
 377         cmd.args[0] = CMD_LNB_UPDATE_REPLY;
 378         cmd.args[1] = 0;
 379         cmd.len = 2;
 380         ret = tda10071_cmd_execute(priv, &cmd);
 381         if (ret)
 382                 goto error;
 383
 384         ret = tda10071_rd_regs(priv, cmd.len, reply->msg, reply->msg_len);
 385         if (ret)
 386                 goto error;
 387
 388         return ret;
 389 error:
 390         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 391         return ret;
 392 }
 393
 394 static int tda10071_diseqc_send_burst(struct dvb_frontend *fe,
 395         fe_sec_mini_cmd_t fe_sec_mini_cmd)
 396 {
 397         struct tda10071_priv *priv = fe->demodulator_priv;
 398         struct tda10071_cmd cmd;
 399         int ret, i;
 400         u8 tmp, burst;
 401
 402         if (!priv->warm) {
 403                 ret = -EFAULT;
 404                 goto error;
 405         }
 406
 407         dev_dbg(&priv->i2c->dev, "%s: fe_sec_mini_cmd=%d\n", __func__,
 408                         fe_sec_mini_cmd);
 409
 410         switch (fe_sec_mini_cmd) {
 411         case SEC_MINI_A:
 412                 burst = 0;
 413                 break;
 414         case SEC_MINI_B:
 415                 burst = 1;
 416                 break;
 417         default:
 418                 dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_mini_cmd\n",
 419                                 __func__);
 420                 ret = -EINVAL;
 421                 goto error;
 422         }
 423
 424         /* wait LNB TX */
 425         for (i = 500, tmp = 0; i && !tmp; i--) {
 426                 ret = tda10071_rd_reg_mask(priv, 0x47, &tmp, 0x01);
 427                 if (ret)
 428                         goto error;
 429
 430                 usleep_range(10000, 20000);
 431         }
 432
 433         dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
 434
 435         if (i == 0) {
 436                 ret = -ETIMEDOUT;
 437                 goto error;
 438         }
 439
 440         ret = tda10071_wr_reg_mask(priv, 0x47, 0x00, 0x01);
 441         if (ret)
 442                 goto error;
 443
 444         cmd.args[0] = CMD_LNB_SEND_TONEBURST;
 445         cmd.args[1] = 0;
 446         cmd.args[2] = burst;
 447         cmd.len = 3;
 448         ret = tda10071_cmd_execute(priv, &cmd);
 449         if (ret)
 450                 goto error;
 451
 452         return ret;
 453 error:
 454         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 455         return ret;
 456 }
 457
 458 static int tda10071_read_status(struct dvb_frontend *fe, fe_status_t *status)
 459 {
 460         struct tda10071_priv *priv = fe->demodulator_priv;
 461         int ret;
 462         u8 tmp;
 463
 464         *status = 0;
 465
 466         if (!priv->warm) {
 467                 ret = 0;
 468                 goto error;
 469         }
 470
 471         ret = tda10071_rd_reg(priv, 0x39, &tmp);
 472         if (ret)
 473                 goto error;
 474
 475         if (tmp & 0x01) /* tuner PLL */
 476                 *status |= FE_HAS_SIGNAL;
 477         if (tmp & 0x02) /* demod PLL */
 478                 *status |= FE_HAS_CARRIER;
 479         if (tmp & 0x04) /* viterbi or LDPC*/
 480                 *status |= FE_HAS_VITERBI;
 481         if (tmp & 0x08) /* RS or BCH */
 482                 *status |= FE_HAS_SYNC | FE_HAS_LOCK;
 483
 484         priv->fe_status = *status;
 485
 486         return ret;
 487 error:
 488         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 489         return ret;
 490 }
 491
 492 static int tda10071_read_snr(struct dvb_frontend *fe, u16 *snr)
 493 {
 494         struct tda10071_priv *priv = fe->demodulator_priv;
 495         int ret;
 496         u8 buf[2];
 497
 498         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
 499                 *snr = 0;
 500                 ret = 0;
 501                 goto error;
 502         }
 503
 504         ret = tda10071_rd_regs(priv, 0x3a, buf, 2);
 505         if (ret)
 506                 goto error;
 507
 508         /* Es/No dBx10 */
 509         *snr = buf[0] << 8 | buf[1];
 510
 511         return ret;
 512 error:
 513         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 514         return ret;
 515 }
 516
 517 static int tda10071_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
 518 {
 519         struct tda10071_priv *priv = fe->demodulator_priv;
 520         struct tda10071_cmd cmd;
 521         int ret;
 522         u8 tmp;
 523
 524         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
 525                 *strength = 0;
 526                 ret = 0;
 527                 goto error;
 528         }
 529
 530         cmd.args[0] = CMD_GET_AGCACC;
 531         cmd.args[1] = 0;
 532         cmd.len = 2;
 533         ret = tda10071_cmd_execute(priv, &cmd);
 534         if (ret)
 535                 goto error;
 536
 537         /* input power estimate dBm */
 538         ret = tda10071_rd_reg(priv, 0x50, &tmp);
 539         if (ret)
 540                 goto error;
 541
 542         if (tmp < 181)
 543                 tmp = 181; /* -75 dBm */
 544         else if (tmp > 236)
 545                 tmp = 236; /* -20 dBm */
 546
 547         /* scale value to 0x0000-0xffff */
 548         *strength = (tmp-181) * 0xffff / (236-181);
 549
 550         return ret;
 551 error:
 552         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 553         return ret;
 554 }
 555
 556 static int tda10071_read_ber(struct dvb_frontend *fe, u32 *ber)
 557 {
 558         struct tda10071_priv *priv = fe->demodulator_priv;
 559         struct tda10071_cmd cmd;
 560         int ret, i, len;
 561         u8 tmp, reg, buf[8];
 562
 563         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
 564                 *ber = priv->ber = 0;
 565                 ret = 0;
 566                 goto error;
 567         }
 568
 569         switch (priv->delivery_system) {
 570         case SYS_DVBS:
 571                 reg = 0x4c;
 572                 len = 8;
 573                 i = 1;
 574                 break;
 575         case SYS_DVBS2:
 576                 reg = 0x4d;
 577                 len = 4;
 578                 i = 0;
 579                 break;
 580         default:
 581                 *ber = priv->ber = 0;
 582                 return 0;
 583         }
 584
 585         ret = tda10071_rd_reg(priv, reg, &tmp);
 586         if (ret)
 587                 goto error;
 588
 589         if (priv->meas_count[i] == tmp) {
 590                 dev_dbg(&priv->i2c->dev, "%s: meas not ready=%02x\n", __func__,
 591                                 tmp);
 592                 *ber = priv->ber;
 593                 return 0;
 594         } else {
 595                 priv->meas_count[i] = tmp;
 596         }
 597
 598         cmd.args[0] = CMD_BER_UPDATE_COUNTERS;
 599         cmd.args[1] = 0;
 600         cmd.args[2] = i;
 601         cmd.len = 3;
 602         ret = tda10071_cmd_execute(priv, &cmd);
 603         if (ret)
 604                 goto error;
 605
 606         ret = tda10071_rd_regs(priv, cmd.len, buf, len);
 607         if (ret)
 608                 goto error;
 609
 610         if (priv->delivery_system == SYS_DVBS) {
 611                 *ber = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
 612                 priv->ucb += (buf[4] << 8) | buf[5];
 613         } else {
 614                 *ber = (buf[0] << 8) | buf[1];
 615         }
 616         priv->ber = *ber;
 617
 618         return ret;
 619 error:
 620         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 621         return ret;
 622 }
 623
 624 static int tda10071_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
 625 {
 626         struct tda10071_priv *priv = fe->demodulator_priv;
 627         int ret = 0;
 628
 629         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
 630                 *ucblocks = 0;
 631                 goto error;
 632         }
 633
 634         /* UCB is updated when BER is read. Assume BER is read anyway. */
 635
 636         *ucblocks = priv->ucb;
 637
 638         return ret;
 639 error:
 640         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 641         return ret;
 642 }
 643
 644 static int tda10071_set_frontend(struct dvb_frontend *fe)
 645 {
 646         struct tda10071_priv *priv = fe->demodulator_priv;
 647         struct tda10071_cmd cmd;
 648         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 649         int ret, i;
 650         u8 mode, rolloff, pilot, inversion, div;
 651
 652         dev_dbg(&priv->i2c->dev, "%s: delivery_system=%d modulation=%d " \
 653                 "frequency=%d symbol_rate=%d inversion=%d pilot=%d " \
 654                 "rolloff=%d\n", __func__, c->delivery_system, c->modulation,
 655                 c->frequency, c->symbol_rate, c->inversion, c->pilot,
 656                 c->rolloff);
 657
 658         priv->delivery_system = SYS_UNDEFINED;
 659
 660         if (!priv->warm) {
 661                 ret = -EFAULT;
 662                 goto error;
 663         }
 664
 665         switch (c->inversion) {
 666         case INVERSION_OFF:
 667                 inversion = 1;
 668                 break;
 669         case INVERSION_ON:
 670                 inversion = 0;
 671                 break;
 672         case INVERSION_AUTO:
 673                 /* 2 = auto; try first on then off
 674                  * 3 = auto; try first off then on */
 675                 inversion = 3;
 676                 break;
 677         default:
 678                 dev_dbg(&priv->i2c->dev, "%s: invalid inversion\n", __func__);
 679                 ret = -EINVAL;
 680                 goto error;
 681         }
 682
 683         switch (c->delivery_system) {
 684         case SYS_DVBS:
 685                 rolloff = 0;
 686                 pilot = 2;
 687                 break;
 688         case SYS_DVBS2:
 689                 switch (c->rolloff) {
 690                 case ROLLOFF_20:
 691                         rolloff = 2;
 692                         break;
 693                 case ROLLOFF_25:
 694                         rolloff = 1;
 695                         break;
 696                 case ROLLOFF_35:
 697                         rolloff = 0;
 698                         break;
 699                 case ROLLOFF_AUTO:
 700                 default:
 701                         dev_dbg(&priv->i2c->dev, "%s: invalid rolloff\n",
 702                                         __func__);
 703                         ret = -EINVAL;
 704                         goto error;
 705                 }
 706
 707                 switch (c->pilot) {
 708                 case PILOT_OFF:
 709                         pilot = 0;
 710                         break;
 711                 case PILOT_ON:
 712                         pilot = 1;
 713                         break;
 714                 case PILOT_AUTO:
 715                         pilot = 2;
 716                         break;
 717                 default:
 718                         dev_dbg(&priv->i2c->dev, "%s: invalid pilot\n",
 719                                         __func__);
 720                         ret = -EINVAL;
 721                         goto error;
 722                 }
 723                 break;
 724         default:
 725                 dev_dbg(&priv->i2c->dev, "%s: invalid delivery_system\n",
 726                                 __func__);
 727                 ret = -EINVAL;
 728                 goto error;
 729         }
 730
 731         for (i = 0, mode = 0xff; i < ARRAY_SIZE(TDA10071_MODCOD); i++) {
 732                 if (c->delivery_system == TDA10071_MODCOD[i].delivery_system &&
 733                         c->modulation == TDA10071_MODCOD[i].modulation &&
 734                         c->fec_inner == TDA10071_MODCOD[i].fec) {
 735                         mode = TDA10071_MODCOD[i].val;
 736                         dev_dbg(&priv->i2c->dev, "%s: mode found=%02x\n",
 737                                         __func__, mode);
 738                         break;
 739                 }
 740         }
 741
 742         if (mode == 0xff) {
 743                 dev_dbg(&priv->i2c->dev, "%s: invalid parameter combination\n",
 744                                 __func__);
 745                 ret = -EINVAL;
 746                 goto error;
 747         }
 748
 749         if (c->symbol_rate <= 5000000)
 750                 div = 14;
 751         else
 752                 div = 4;
 753
 754         ret = tda10071_wr_reg(priv, 0x81, div);
 755         if (ret)
 756                 goto error;
 757
 758         ret = tda10071_wr_reg(priv, 0xe3, div);
 759         if (ret)
 760                 goto error;
 761
 762         cmd.args[0] = CMD_CHANGE_CHANNEL;
 763         cmd.args[1] = 0;
 764         cmd.args[2] = mode;
 765         cmd.args[3] = (c->frequency >> 16) & 0xff;
 766         cmd.args[4] = (c->frequency >>  8) & 0xff;
 767         cmd.args[5] = (c->frequency >>  0) & 0xff;
 768         cmd.args[6] = ((c->symbol_rate / 1000) >> 8) & 0xff;
 769         cmd.args[7] = ((c->symbol_rate / 1000) >> 0) & 0xff;
 770         cmd.args[8] = (tda10071_ops.info.frequency_tolerance >> 8) & 0xff;
 771         cmd.args[9] = (tda10071_ops.info.frequency_tolerance >> 0) & 0xff;
 772         cmd.args[10] = rolloff;
 773         cmd.args[11] = inversion;
 774         cmd.args[12] = pilot;
 775         cmd.args[13] = 0x00;
 776         cmd.args[14] = 0x00;
 777         cmd.len = 15;
 778         ret = tda10071_cmd_execute(priv, &cmd);
 779         if (ret)
 780                 goto error;
 781
 782         priv->delivery_system = c->delivery_system;
 783
 784         return ret;
 785 error:
 786         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 787         return ret;
 788 }
 789
 790 static int tda10071_get_frontend(struct dvb_frontend *fe)
 791 {
 792         struct tda10071_priv *priv = fe->demodulator_priv;
 793         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 794         int ret, i;
 795         u8 buf[5], tmp;
 796
 797         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
 798                 ret = -EFAULT;
 799                 goto error;
 800         }
 801
 802         ret = tda10071_rd_regs(priv, 0x30, buf, 5);
 803         if (ret)
 804                 goto error;
 805
 806         tmp = buf[0] & 0x3f;
 807         for (i = 0; i < ARRAY_SIZE(TDA10071_MODCOD); i++) {
 808                 if (tmp == TDA10071_MODCOD[i].val) {
 809                         c->modulation = TDA10071_MODCOD[i].modulation;
 810                         c->fec_inner = TDA10071_MODCOD[i].fec;
 811                         c->delivery_system = TDA10071_MODCOD[i].delivery_system;
 812                 }
 813         }
 814
 815         switch ((buf[1] >> 0) & 0x01) {
 816         case 0:
 817                 c->inversion = INVERSION_OFF;
 818                 break;
 819         case 1:
 820                 c->inversion = INVERSION_ON;
 821                 break;
 822         }
 823
 824         switch ((buf[1] >> 7) & 0x01) {
 825         case 0:
 826                 c->pilot = PILOT_OFF;
 827                 break;
 828         case 1:
 829                 c->pilot = PILOT_ON;
 830                 break;
 831         }
 832
 833         c->frequency = (buf[2] << 16) | (buf[3] << 8) | (buf[4] << 0);
 834
 835         ret = tda10071_rd_regs(priv, 0x52, buf, 3);
 836         if (ret)
 837                 goto error;
 838
 839         c->symbol_rate = (buf[0] << 16) | (buf[1] << 8) | (buf[2] << 0);
 840
 841         return ret;
 842 error:
 843         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 844         return ret;
 845 }
 846
 847 static int tda10071_init(struct dvb_frontend *fe)
 848 {
 849         struct tda10071_priv *priv = fe->demodulator_priv;
 850         struct tda10071_cmd cmd;
 851         int ret, i, len, remaining, fw_size;
 852         const struct firmware *fw;
 853         u8 *fw_file = TDA10071_DEFAULT_FIRMWARE;
 854         u8 tmp, buf[4];
 855         struct tda10071_reg_val_mask tab[] = {
 856                 { 0xcd, 0x00, 0x07 },
 857                 { 0x80, 0x00, 0x02 },
 858                 { 0xcd, 0x00, 0xc0 },
 859                 { 0xce, 0x00, 0x1b },
 860                 { 0x9d, 0x00, 0x01 },
 861                 { 0x9d, 0x00, 0x02 },
 862                 { 0x9e, 0x00, 0x01 },
 863                 { 0x87, 0x00, 0x80 },
 864                 { 0xce, 0x00, 0x08 },
 865                 { 0xce, 0x00, 0x10 },
 866         };
 867         struct tda10071_reg_val_mask tab2[] = {
 868                 { 0xf1, 0x70, 0xff },
 869                 { 0x88, priv->cfg.pll_multiplier, 0x3f },
 870                 { 0x89, 0x00, 0x10 },
 871                 { 0x89, 0x10, 0x10 },
 872                 { 0xc0, 0x01, 0x01 },
 873                 { 0xc0, 0x00, 0x01 },
 874                 { 0xe0, 0xff, 0xff },
 875                 { 0xe0, 0x00, 0xff },
 876                 { 0x96, 0x1e, 0x7e },
 877                 { 0x8b, 0x08, 0x08 },
 878                 { 0x8b, 0x00, 0x08 },
 879                 { 0x8f, 0x1a, 0x7e },
 880                 { 0x8c, 0x68, 0xff },
 881                 { 0x8d, 0x08, 0xff },
 882                 { 0x8e, 0x4c, 0xff },
 883                 { 0x8f, 0x01, 0x01 },
 884                 { 0x8b, 0x04, 0x04 },
 885                 { 0x8b, 0x00, 0x04 },
 886                 { 0x87, 0x05, 0x07 },
 887                 { 0x80, 0x00, 0x20 },
 888                 { 0xc8, 0x01, 0xff },
 889                 { 0xb4, 0x47, 0xff },
 890                 { 0xb5, 0x9c, 0xff },
 891                 { 0xb6, 0x7d, 0xff },
 892                 { 0xba, 0x00, 0x03 },
 893                 { 0xb7, 0x47, 0xff },
 894                 { 0xb8, 0x9c, 0xff },
 895                 { 0xb9, 0x7d, 0xff },
 896                 { 0xba, 0x00, 0x0c },
 897                 { 0xc8, 0x00, 0xff },
 898                 { 0xcd, 0x00, 0x04 },
 899                 { 0xcd, 0x00, 0x20 },
 900                 { 0xe8, 0x02, 0xff },
 901                 { 0xcf, 0x20, 0xff },
 902                 { 0x9b, 0xd7, 0xff },
 903                 { 0x9a, 0x01, 0x03 },
 904                 { 0xa8, 0x05, 0x0f },
 905                 { 0xa8, 0x65, 0xf0 },
 906                 { 0xa6, 0xa0, 0xf0 },
 907                 { 0x9d, 0x50, 0xfc },
 908                 { 0x9e, 0x20, 0xe0 },
 909                 { 0xa3, 0x1c, 0x7c },
 910                 { 0xd5, 0x03, 0x03 },
 911         };
 912
 913         /* firmware status */
 914         ret = tda10071_rd_reg(priv, 0x51, &tmp);
 915         if (ret)
 916                 goto error;
 917
 918         if (!tmp) {
 919                 /* warm state - wake up device from sleep */
 920                 priv->warm = 1;
 921
 922                 for (i = 0; i < ARRAY_SIZE(tab); i++) {
 923                         ret = tda10071_wr_reg_mask(priv, tab[i].reg,
 924                                 tab[i].val, tab[i].mask);
 925                         if (ret)
 926                                 goto error;
 927                 }
 928
 929                 cmd.args[0] = CMD_SET_SLEEP_MODE;
 930                 cmd.args[1] = 0;
 931                 cmd.args[2] = 0;
 932                 cmd.len = 3;
 933                 ret = tda10071_cmd_execute(priv, &cmd);
 934                 if (ret)
 935                         goto error;
 936         } else {
 937                 /* cold state - try to download firmware */
 938                 priv->warm = 0;
 939
 940                 /* request the firmware, this will block and timeout */
 941                 ret = request_firmware(&fw, fw_file, priv->i2c->dev.parent);
 942                 if (ret) {
 943                         dev_err(&priv->i2c->dev, "%s: did not find the " \
 944                                         "firmware file. (%s) Please see " \
 945                                         "linux/Documentation/dvb/ for more " \
 946                                         "details on firmware-problems. (%d)\n",
 947                                         KBUILD_MODNAME, fw_file, ret);
 948                         goto error;
 949                 }
 950
 951                 /* init */
 952                 for (i = 0; i < ARRAY_SIZE(tab2); i++) {
 953                         ret = tda10071_wr_reg_mask(priv, tab2[i].reg,
 954                                 tab2[i].val, tab2[i].mask);
 955                         if (ret)
 956                                 goto error_release_firmware;
 957                 }
 958
 959                 /*  download firmware */
 960                 ret = tda10071_wr_reg(priv, 0xe0, 0x7f);
 961                 if (ret)
 962                         goto error_release_firmware;
 963
 964                 ret = tda10071_wr_reg(priv, 0xf7, 0x81);
 965                 if (ret)
 966                         goto error_release_firmware;
 967
 968                 ret = tda10071_wr_reg(priv, 0xf8, 0x00);
 969                 if (ret)
 970                         goto error_release_firmware;
 971
 972                 ret = tda10071_wr_reg(priv, 0xf9, 0x00);
 973                 if (ret)
 974                         goto error_release_firmware;
 975
 976                 dev_info(&priv->i2c->dev, "%s: found a '%s' in cold state, " \
 977                                 "will try to load a firmware\n", KBUILD_MODNAME,
 978                                 tda10071_ops.info.name);
 979                 dev_info(&priv->i2c->dev, "%s: downloading firmware from " \
 980                                 "file '%s'\n", KBUILD_MODNAME, fw_file);
 981
 982                 /* do not download last byte */
 983                 fw_size = fw->size - 1;
 984
 985                 for (remaining = fw_size; remaining > 0;
 986                         remaining -= (priv->cfg.i2c_wr_max - 1)) {
 987                         len = remaining;
 988                         if (len > (priv->cfg.i2c_wr_max - 1))
 989                                 len = (priv->cfg.i2c_wr_max - 1);
 990
 991                         ret = tda10071_wr_regs(priv, 0xfa,
 992                                 (u8 *) &fw->data[fw_size - remaining], len);
 993                         if (ret) {
 994                                 dev_err(&priv->i2c->dev, "%s: firmware " \
 995                                                 "download failed=%d\n",
 996                                                 KBUILD_MODNAME, ret);
 997                                 if (ret)
 998                                         goto error_release_firmware;
 999                         }
1000                 }
1001                 release_firmware(fw);
1002
1003                 ret = tda10071_wr_reg(priv, 0xf7, 0x0c);
1004                 if (ret)
1005                         goto error;
1006
1007                 ret = tda10071_wr_reg(priv, 0xe0, 0x00);
1008                 if (ret)
1009                         goto error;
1010
1011                 /* wait firmware start */
1012                 msleep(250);
1013
1014                 /* firmware status */
1015                 ret = tda10071_rd_reg(priv, 0x51, &tmp);
1016                 if (ret)
1017                         goto error;
1018
1019                 if (tmp) {
1020                         dev_info(&priv->i2c->dev, "%s: firmware did not run\n",
1021                                         KBUILD_MODNAME);
1022                         ret = -EFAULT;
1023                         goto error;
1024                 } else {
1025                         priv->warm = 1;
1026                 }
1027
1028                 cmd.args[0] = CMD_GET_FW_VERSION;
1029                 cmd.len = 1;
1030                 ret = tda10071_cmd_execute(priv, &cmd);
1031                 if (ret)
1032                         goto error;
1033
1034                 ret = tda10071_rd_regs(priv, cmd.len, buf, 4);
1035                 if (ret)
1036                         goto error;
1037
1038                 dev_info(&priv->i2c->dev, "%s: firmware version %d.%d.%d.%d\n",
1039                                 KBUILD_MODNAME, buf[0], buf[1], buf[2], buf[3]);
1040                 dev_info(&priv->i2c->dev, "%s: found a '%s' in warm state\n",
1041                                 KBUILD_MODNAME, tda10071_ops.info.name);
1042
1043                 ret = tda10071_rd_regs(priv, 0x81, buf, 2);
1044                 if (ret)
1045                         goto error;
1046
1047                 cmd.args[0] = CMD_DEMOD_INIT;
1048                 cmd.args[1] = ((priv->cfg.xtal / 1000) >> 8) & 0xff;
1049                 cmd.args[2] = ((priv->cfg.xtal / 1000) >> 0) & 0xff;
1050                 cmd.args[3] = buf[0];
1051                 cmd.args[4] = buf[1];
1052                 cmd.args[5] = priv->cfg.pll_multiplier;
1053                 cmd.args[6] = priv->cfg.spec_inv;
1054                 cmd.args[7] = 0x00;
1055                 cmd.len = 8;
1056                 ret = tda10071_cmd_execute(priv, &cmd);
1057                 if (ret)
1058                         goto error;
1059
1060                 cmd.args[0] = CMD_TUNER_INIT;
1061                 cmd.args[1] = 0x00;
1062                 cmd.args[2] = 0x00;
1063                 cmd.args[3] = 0x00;
1064                 cmd.args[4] = 0x00;
1065                 cmd.args[5] = 0x14;
1066                 cmd.args[6] = 0x00;
1067                 cmd.args[7] = 0x03;
1068                 cmd.args[8] = 0x02;
1069                 cmd.args[9] = 0x02;
1070                 cmd.args[10] = 0x00;
1071                 cmd.args[11] = 0x00;
1072                 cmd.args[12] = 0x00;
1073                 cmd.args[13] = 0x00;
1074                 cmd.args[14] = 0x00;
1075                 cmd.len = 15;
1076                 ret = tda10071_cmd_execute(priv, &cmd);
1077                 if (ret)
1078                         goto error;
1079
1080                 cmd.args[0] = CMD_MPEG_CONFIG;
1081                 cmd.args[1] = 0;
1082                 cmd.args[2] = priv->cfg.ts_mode;
1083                 cmd.args[3] = 0x00;
1084                 cmd.args[4] = 0x04;
1085                 cmd.args[5] = 0x00;
1086                 cmd.len = 6;
1087                 ret = tda10071_cmd_execute(priv, &cmd);
1088                 if (ret)
1089                         goto error;
1090
1091                 ret = tda10071_wr_reg_mask(priv, 0xf0, 0x01, 0x01);
1092                 if (ret)
1093                         goto error;
1094
1095                 cmd.args[0] = CMD_LNB_CONFIG;
1096                 cmd.args[1] = 0;
1097                 cmd.args[2] = 150;
1098                 cmd.args[3] = 3;
1099                 cmd.args[4] = 22;
1100                 cmd.args[5] = 1;
1101                 cmd.args[6] = 1;
1102                 cmd.args[7] = 30;
1103                 cmd.args[8] = 30;
1104                 cmd.args[9] = 30;
1105                 cmd.args[10] = 30;
1106                 cmd.len = 11;
1107                 ret = tda10071_cmd_execute(priv, &cmd);
1108                 if (ret)
1109                         goto error;
1110
1111                 cmd.args[0] = CMD_BER_CONTROL;
1112                 cmd.args[1] = 0;
1113                 cmd.args[2] = 14;
1114                 cmd.args[3] = 14;
1115                 cmd.len = 4;
1116                 ret = tda10071_cmd_execute(priv, &cmd);
1117                 if (ret)
1118                         goto error;
1119         }
1120
1121         return ret;
1122 error_release_firmware:
1123         release_firmware(fw);
1124 error:
1125         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
1126         return ret;
1127 }
1128
1129 static int tda10071_sleep(struct dvb_frontend *fe)
1130 {
1131         struct tda10071_priv *priv = fe->demodulator_priv;
1132         struct tda10071_cmd cmd;
1133         int ret, i;
1134         struct tda10071_reg_val_mask tab[] = {
1135                 { 0xcd, 0x07, 0x07 },
1136                 { 0x80, 0x02, 0x02 },
1137                 { 0xcd, 0xc0, 0xc0 },
1138                 { 0xce, 0x1b, 0x1b },
1139                 { 0x9d, 0x01, 0x01 },
1140                 { 0x9d, 0x02, 0x02 },
1141                 { 0x9e, 0x01, 0x01 },
1142                 { 0x87, 0x80, 0x80 },
1143                 { 0xce, 0x08, 0x08 },
1144                 { 0xce, 0x10, 0x10 },
1145         };
1146
1147         if (!priv->warm) {
1148                 ret = -EFAULT;
1149                 goto error;
1150         }
1151
1152         cmd.args[0] = CMD_SET_SLEEP_MODE;
1153         cmd.args[1] = 0;
1154         cmd.args[2] = 1;
1155         cmd.len = 3;
1156         ret = tda10071_cmd_execute(priv, &cmd);
1157         if (ret)
1158                 goto error;
1159
1160         for (i = 0; i < ARRAY_SIZE(tab); i++) {
1161                 ret = tda10071_wr_reg_mask(priv, tab[i].reg, tab[i].val,
1162                         tab[i].mask);
1163                 if (ret)
1164                         goto error;
1165         }
1166
1167         return ret;
1168 error:
1169         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
1170         return ret;
1171 }
1172
1173 static int tda10071_get_tune_settings(struct dvb_frontend *fe,
1174         struct dvb_frontend_tune_settings *s)
1175 {
1176         s->min_delay_ms = 8000;
1177         s->step_size = 0;
1178         s->max_drift = 0;
1179
1180         return 0;
1181 }
1182
1183 static void tda10071_release(struct dvb_frontend *fe)
1184 {
1185         struct tda10071_priv *priv = fe->demodulator_priv;
1186         kfree(priv);
1187 }
1188
1189 struct dvb_frontend *tda10071_attach(const struct tda10071_config *config,
1190         struct i2c_adapter *i2c)
1191 {
1192         int ret;
1193         struct tda10071_priv *priv = NULL;
1194         u8 tmp;
1195
1196         /* allocate memory for the internal priv */
1197         priv = kzalloc(sizeof(struct tda10071_priv), GFP_KERNEL);
1198         if (priv == NULL) {
1199                 ret = -ENOMEM;
1200                 goto error;
1201         }
1202
1203         /* setup the priv */
1204         priv->i2c = i2c;
1205         memcpy(&priv->cfg, config, sizeof(struct tda10071_config));
1206
1207         /* chip ID */
1208         ret = tda10071_rd_reg(priv, 0xff, &tmp);
1209         if (ret || tmp != 0x0f)
1210                 goto error;
1211
1212         /* chip type */
1213         ret = tda10071_rd_reg(priv, 0xdd, &tmp);
1214         if (ret || tmp != 0x00)
1215                 goto error;
1216
1217         /* chip version */
1218         ret = tda10071_rd_reg(priv, 0xfe, &tmp);
1219         if (ret || tmp != 0x01)
1220                 goto error;
1221
1222         /* create dvb_frontend */
1223         memcpy(&priv->fe.ops, &tda10071_ops, sizeof(struct dvb_frontend_ops));
1224         priv->fe.demodulator_priv = priv;
1225
1226         return &priv->fe;
1227 error:
1228         dev_dbg(&i2c->dev, "%s: failed=%d\n", __func__, ret);
1229         kfree(priv);
1230         return NULL;
1231 }
1232 EXPORT_SYMBOL(tda10071_attach);
1233
1234 static struct dvb_frontend_ops tda10071_ops = {
1235         .delsys = { SYS_DVBS, SYS_DVBS2 },
1236         .info = {
1237                 .name = "NXP TDA10071",
1238                 .frequency_min = 950000,
1239                 .frequency_max = 2150000,
1240                 .frequency_tolerance = 5000,
1241                 .symbol_rate_min = 1000000,
1242                 .symbol_rate_max = 45000000,
1243                 .caps = FE_CAN_INVERSION_AUTO |
1244                         FE_CAN_FEC_1_2 |
1245                         FE_CAN_FEC_2_3 |
1246                         FE_CAN_FEC_3_4 |
1247                         FE_CAN_FEC_4_5 |
1248                         FE_CAN_FEC_5_6 |
1249                         FE_CAN_FEC_6_7 |
1250                         FE_CAN_FEC_7_8 |
1251                         FE_CAN_FEC_8_9 |
1252                         FE_CAN_FEC_AUTO |
1253                         FE_CAN_QPSK |
1254                         FE_CAN_RECOVER |
1255                         FE_CAN_2G_MODULATION
1256         },
1257
1258         .release = tda10071_release,
1259
1260         .get_tune_settings = tda10071_get_tune_settings,
1261
1262         .init = tda10071_init,
1263         .sleep = tda10071_sleep,
1264
1265         .set_frontend = tda10071_set_frontend,
1266         .get_frontend = tda10071_get_frontend,
1267
1268         .read_status = tda10071_read_status,
1269         .read_snr = tda10071_read_snr,
1270         .read_signal_strength = tda10071_read_signal_strength,
1271         .read_ber = tda10071_read_ber,
1272         .read_ucblocks = tda10071_read_ucblocks,
1273
1274         .diseqc_send_master_cmd = tda10071_diseqc_send_master_cmd,
1275         .diseqc_recv_slave_reply = tda10071_diseqc_recv_slave_reply,
1276         .diseqc_send_burst = tda10071_diseqc_send_burst,
1277
1278         .set_tone = tda10071_set_tone,
1279         .set_voltage = tda10071_set_voltage,
1280 };
1281
1282 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1283 MODULE_DESCRIPTION("NXP TDA10071 DVB-S/S2 demodulator driver");
1284 MODULE_LICENSE("GPL");