linux/drivers/media/dvb-frontends/tda10071.c
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   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * NXP TDA10071 + Conexant CX24118A DVB-S/S2 demodulator + tuner driver
   4 *
   5 * Copyright (C) 2011 Antti Palosaari <crope@iki.fi>
   6 */
   7
   8#include "tda10071_priv.h"
   9
  10static const struct dvb_frontend_ops tda10071_ops;
  11
  12/*
  13 * XXX: regmap_update_bits() does not fit our needs as it does not support
  14 * partially volatile registers. Also it performs register read even mask is as
  15 * wide as register value.
  16 */
  17/* write single register with mask */
  18static int tda10071_wr_reg_mask(struct tda10071_dev *dev,
  19                                u8 reg, u8 val, u8 mask)
  20{
  21        int ret;
  22        u8 tmp;
  23
  24        /* no need for read if whole reg is written */
  25        if (mask != 0xff) {
  26                ret = regmap_bulk_read(dev->regmap, reg, &tmp, 1);
  27                if (ret)
  28                        return ret;
  29
  30                val &= mask;
  31                tmp &= ~mask;
  32                val |= tmp;
  33        }
  34
  35        return regmap_bulk_write(dev->regmap, reg, &val, 1);
  36}
  37
  38/* execute firmware command */
  39static int tda10071_cmd_execute(struct tda10071_dev *dev,
  40        struct tda10071_cmd *cmd)
  41{
  42        struct i2c_client *client = dev->client;
  43        int ret, i;
  44        unsigned int uitmp;
  45
  46        if (!dev->warm) {
  47                ret = -EFAULT;
  48                goto error;
  49        }
  50
  51        mutex_lock(&dev->cmd_execute_mutex);
  52
  53        /* write cmd and args for firmware */
  54        ret = regmap_bulk_write(dev->regmap, 0x00, cmd->args, cmd->len);
  55        if (ret)
  56                goto error_mutex_unlock;
  57
  58        /* start cmd execution */
  59        ret = regmap_write(dev->regmap, 0x1f, 1);
  60        if (ret)
  61                goto error_mutex_unlock;
  62
  63        /* wait cmd execution terminate */
  64        for (i = 1000, uitmp = 1; i && uitmp; i--) {
  65                ret = regmap_read(dev->regmap, 0x1f, &uitmp);
  66                if (ret)
  67                        goto error_mutex_unlock;
  68
  69                usleep_range(200, 5000);
  70        }
  71
  72        mutex_unlock(&dev->cmd_execute_mutex);
  73        dev_dbg(&client->dev, "loop=%d\n", i);
  74
  75        if (i == 0) {
  76                ret = -ETIMEDOUT;
  77                goto error;
  78        }
  79
  80        return ret;
  81error_mutex_unlock:
  82        mutex_unlock(&dev->cmd_execute_mutex);
  83error:
  84        dev_dbg(&client->dev, "failed=%d\n", ret);
  85        return ret;
  86}
  87
  88static int tda10071_set_tone(struct dvb_frontend *fe,
  89        enum fe_sec_tone_mode fe_sec_tone_mode)
  90{
  91        struct tda10071_dev *dev = fe->demodulator_priv;
  92        struct i2c_client *client = dev->client;
  93        struct tda10071_cmd cmd;
  94        int ret;
  95        u8 tone;
  96
  97        if (!dev->warm) {
  98                ret = -EFAULT;
  99                goto error;
 100        }
 101
 102        dev_dbg(&client->dev, "tone_mode=%d\n", fe_sec_tone_mode);
 103
 104        switch (fe_sec_tone_mode) {
 105        case SEC_TONE_ON:
 106                tone = 1;
 107                break;
 108        case SEC_TONE_OFF:
 109                tone = 0;
 110                break;
 111        default:
 112                dev_dbg(&client->dev, "invalid fe_sec_tone_mode\n");
 113                ret = -EINVAL;
 114                goto error;
 115        }
 116
 117        cmd.args[0] = CMD_LNB_PCB_CONFIG;
 118        cmd.args[1] = 0;
 119        cmd.args[2] = 0x00;
 120        cmd.args[3] = 0x00;
 121        cmd.args[4] = tone;
 122        cmd.len = 5;
 123        ret = tda10071_cmd_execute(dev, &cmd);
 124        if (ret)
 125                goto error;
 126
 127        return ret;
 128error:
 129        dev_dbg(&client->dev, "failed=%d\n", ret);
 130        return ret;
 131}
 132
 133static int tda10071_set_voltage(struct dvb_frontend *fe,
 134        enum fe_sec_voltage fe_sec_voltage)
 135{
 136        struct tda10071_dev *dev = fe->demodulator_priv;
 137        struct i2c_client *client = dev->client;
 138        struct tda10071_cmd cmd;
 139        int ret;
 140        u8 voltage;
 141
 142        if (!dev->warm) {
 143                ret = -EFAULT;
 144                goto error;
 145        }
 146
 147        dev_dbg(&client->dev, "voltage=%d\n", fe_sec_voltage);
 148
 149        switch (fe_sec_voltage) {
 150        case SEC_VOLTAGE_13:
 151                voltage = 0;
 152                break;
 153        case SEC_VOLTAGE_18:
 154                voltage = 1;
 155                break;
 156        case SEC_VOLTAGE_OFF:
 157                voltage = 0;
 158                break;
 159        default:
 160                dev_dbg(&client->dev, "invalid fe_sec_voltage\n");
 161                ret = -EINVAL;
 162                goto error;
 163        }
 164
 165        cmd.args[0] = CMD_LNB_SET_DC_LEVEL;
 166        cmd.args[1] = 0;
 167        cmd.args[2] = voltage;
 168        cmd.len = 3;
 169        ret = tda10071_cmd_execute(dev, &cmd);
 170        if (ret)
 171                goto error;
 172
 173        return ret;
 174error:
 175        dev_dbg(&client->dev, "failed=%d\n", ret);
 176        return ret;
 177}
 178
 179static int tda10071_diseqc_send_master_cmd(struct dvb_frontend *fe,
 180        struct dvb_diseqc_master_cmd *diseqc_cmd)
 181{
 182        struct tda10071_dev *dev = fe->demodulator_priv;
 183        struct i2c_client *client = dev->client;
 184        struct tda10071_cmd cmd;
 185        int ret, i;
 186        unsigned int uitmp;
 187
 188        if (!dev->warm) {
 189                ret = -EFAULT;
 190                goto error;
 191        }
 192
 193        dev_dbg(&client->dev, "msg_len=%d\n", diseqc_cmd->msg_len);
 194
 195        if (diseqc_cmd->msg_len < 3 || diseqc_cmd->msg_len > 6) {
 196                ret = -EINVAL;
 197                goto error;
 198        }
 199
 200        /* wait LNB TX */
 201        for (i = 500, uitmp = 0; i && !uitmp; i--) {
 202                ret = regmap_read(dev->regmap, 0x47, &uitmp);
 203                if (ret)
 204                        goto error;
 205                uitmp = (uitmp >> 0) & 1;
 206                usleep_range(10000, 20000);
 207        }
 208
 209        dev_dbg(&client->dev, "loop=%d\n", i);
 210
 211        if (i == 0) {
 212                ret = -ETIMEDOUT;
 213                goto error;
 214        }
 215
 216        ret = regmap_update_bits(dev->regmap, 0x47, 0x01, 0x00);
 217        if (ret)
 218                goto error;
 219
 220        cmd.args[0] = CMD_LNB_SEND_DISEQC;
 221        cmd.args[1] = 0;
 222        cmd.args[2] = 0;
 223        cmd.args[3] = 0;
 224        cmd.args[4] = 2;
 225        cmd.args[5] = 0;
 226        cmd.args[6] = diseqc_cmd->msg_len;
 227        memcpy(&cmd.args[7], diseqc_cmd->msg, diseqc_cmd->msg_len);
 228        cmd.len = 7 + diseqc_cmd->msg_len;
 229        ret = tda10071_cmd_execute(dev, &cmd);
 230        if (ret)
 231                goto error;
 232
 233        return ret;
 234error:
 235        dev_dbg(&client->dev, "failed=%d\n", ret);
 236        return ret;
 237}
 238
 239static int tda10071_diseqc_recv_slave_reply(struct dvb_frontend *fe,
 240        struct dvb_diseqc_slave_reply *reply)
 241{
 242        struct tda10071_dev *dev = fe->demodulator_priv;
 243        struct i2c_client *client = dev->client;
 244        struct tda10071_cmd cmd;
 245        int ret, i;
 246        unsigned int uitmp;
 247
 248        if (!dev->warm) {
 249                ret = -EFAULT;
 250                goto error;
 251        }
 252
 253        dev_dbg(&client->dev, "\n");
 254
 255        /* wait LNB RX */
 256        for (i = 500, uitmp = 0; i && !uitmp; i--) {
 257                ret = regmap_read(dev->regmap, 0x47, &uitmp);
 258                if (ret)
 259                        goto error;
 260                uitmp = (uitmp >> 1) & 1;
 261                usleep_range(10000, 20000);
 262        }
 263
 264        dev_dbg(&client->dev, "loop=%d\n", i);
 265
 266        if (i == 0) {
 267                ret = -ETIMEDOUT;
 268                goto error;
 269        }
 270
 271        /* reply len */
 272        ret = regmap_read(dev->regmap, 0x46, &uitmp);
 273        if (ret)
 274                goto error;
 275
 276        reply->msg_len = uitmp & 0x1f; /* [4:0] */
 277        if (reply->msg_len > sizeof(reply->msg))
 278                reply->msg_len = sizeof(reply->msg); /* truncate API max */
 279
 280        /* read reply */
 281        cmd.args[0] = CMD_LNB_UPDATE_REPLY;
 282        cmd.args[1] = 0;
 283        cmd.len = 2;
 284        ret = tda10071_cmd_execute(dev, &cmd);
 285        if (ret)
 286                goto error;
 287
 288        ret = regmap_bulk_read(dev->regmap, cmd.len, reply->msg,
 289                               reply->msg_len);
 290        if (ret)
 291                goto error;
 292
 293        return ret;
 294error:
 295        dev_dbg(&client->dev, "failed=%d\n", ret);
 296        return ret;
 297}
 298
 299static int tda10071_diseqc_send_burst(struct dvb_frontend *fe,
 300        enum fe_sec_mini_cmd fe_sec_mini_cmd)
 301{
 302        struct tda10071_dev *dev = fe->demodulator_priv;
 303        struct i2c_client *client = dev->client;
 304        struct tda10071_cmd cmd;
 305        int ret, i;
 306        unsigned int uitmp;
 307        u8 burst;
 308
 309        if (!dev->warm) {
 310                ret = -EFAULT;
 311                goto error;
 312        }
 313
 314        dev_dbg(&client->dev, "fe_sec_mini_cmd=%d\n", fe_sec_mini_cmd);
 315
 316        switch (fe_sec_mini_cmd) {
 317        case SEC_MINI_A:
 318                burst = 0;
 319                break;
 320        case SEC_MINI_B:
 321                burst = 1;
 322                break;
 323        default:
 324                dev_dbg(&client->dev, "invalid fe_sec_mini_cmd\n");
 325                ret = -EINVAL;
 326                goto error;
 327        }
 328
 329        /* wait LNB TX */
 330        for (i = 500, uitmp = 0; i && !uitmp; i--) {
 331                ret = regmap_read(dev->regmap, 0x47, &uitmp);
 332                if (ret)
 333                        goto error;
 334                uitmp = (uitmp >> 0) & 1;
 335                usleep_range(10000, 20000);
 336        }
 337
 338        dev_dbg(&client->dev, "loop=%d\n", i);
 339
 340        if (i == 0) {
 341                ret = -ETIMEDOUT;
 342                goto error;
 343        }
 344
 345        ret = regmap_update_bits(dev->regmap, 0x47, 0x01, 0x00);
 346        if (ret)
 347                goto error;
 348
 349        cmd.args[0] = CMD_LNB_SEND_TONEBURST;
 350        cmd.args[1] = 0;
 351        cmd.args[2] = burst;
 352        cmd.len = 3;
 353        ret = tda10071_cmd_execute(dev, &cmd);
 354        if (ret)
 355                goto error;
 356
 357        return ret;
 358error:
 359        dev_dbg(&client->dev, "failed=%d\n", ret);
 360        return ret;
 361}
 362
 363static int tda10071_read_status(struct dvb_frontend *fe, enum fe_status *status)
 364{
 365        struct tda10071_dev *dev = fe->demodulator_priv;
 366        struct i2c_client *client = dev->client;
 367        struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 368        struct tda10071_cmd cmd;
 369        int ret;
 370        unsigned int uitmp;
 371        u8 buf[8];
 372
 373        *status = 0;
 374
 375        if (!dev->warm) {
 376                ret = 0;
 377                goto error;
 378        }
 379
 380        ret = regmap_read(dev->regmap, 0x39, &uitmp);
 381        if (ret)
 382                goto error;
 383
 384        /* 0x39[0] tuner PLL */
 385        if (uitmp & 0x02) /* demod PLL */
 386                *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER;
 387        if (uitmp & 0x04) /* viterbi or LDPC*/
 388                *status |= FE_HAS_VITERBI;
 389        if (uitmp & 0x08) /* RS or BCH */
 390                *status |= FE_HAS_SYNC | FE_HAS_LOCK;
 391
 392        dev->fe_status = *status;
 393
 394        /* signal strength */
 395        if (dev->fe_status & FE_HAS_SIGNAL) {
 396                cmd.args[0] = CMD_GET_AGCACC;
 397                cmd.args[1] = 0;
 398                cmd.len = 2;
 399                ret = tda10071_cmd_execute(dev, &cmd);
 400                if (ret)
 401                        goto error;
 402
 403                /* input power estimate dBm */
 404                ret = regmap_read(dev->regmap, 0x50, &uitmp);
 405                if (ret)
 406                        goto error;
 407
 408                c->strength.stat[0].scale = FE_SCALE_DECIBEL;
 409                c->strength.stat[0].svalue = (int) (uitmp - 256) * 1000;
 410        } else {
 411                c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
 412        }
 413
 414        /* CNR */
 415        if (dev->fe_status & FE_HAS_VITERBI) {
 416                /* Es/No */
 417                ret = regmap_bulk_read(dev->regmap, 0x3a, buf, 2);
 418                if (ret)
 419                        goto error;
 420
 421                c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
 422                c->cnr.stat[0].svalue = (buf[0] << 8 | buf[1] << 0) * 100;
 423        } else {
 424                c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
 425        }
 426
 427        /* UCB/PER/BER */
 428        if (dev->fe_status & FE_HAS_LOCK) {
 429                /* TODO: report total bits/packets */
 430                u8 delivery_system, reg, len;
 431
 432                switch (dev->delivery_system) {
 433                case SYS_DVBS:
 434                        reg = 0x4c;
 435                        len = 8;
 436                        delivery_system = 1;
 437                        break;
 438                case SYS_DVBS2:
 439                        reg = 0x4d;
 440                        len = 4;
 441                        delivery_system = 0;
 442                        break;
 443                default:
 444                        ret = -EINVAL;
 445                        goto error;
 446                }
 447
 448                ret = regmap_read(dev->regmap, reg, &uitmp);
 449                if (ret)
 450                        goto error;
 451
 452                if (dev->meas_count == uitmp) {
 453                        dev_dbg(&client->dev, "meas not ready=%02x\n", uitmp);
 454                        ret = 0;
 455                        goto error;
 456                } else {
 457                        dev->meas_count = uitmp;
 458                }
 459
 460                cmd.args[0] = CMD_BER_UPDATE_COUNTERS;
 461                cmd.args[1] = 0;
 462                cmd.args[2] = delivery_system;
 463                cmd.len = 3;
 464                ret = tda10071_cmd_execute(dev, &cmd);
 465                if (ret)
 466                        goto error;
 467
 468                ret = regmap_bulk_read(dev->regmap, cmd.len, buf, len);
 469                if (ret)
 470                        goto error;
 471
 472                if (dev->delivery_system == SYS_DVBS) {
 473                        u32 bit_error = buf[0] << 24 | buf[1] << 16 |
 474                                        buf[2] << 8 | buf[3] << 0;
 475
 476                        dev->dvbv3_ber = bit_error;
 477                        dev->post_bit_error += bit_error;
 478                        c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
 479                        c->post_bit_error.stat[0].uvalue = dev->post_bit_error;
 480                        dev->block_error += buf[4] << 8 | buf[5] << 0;
 481                        c->block_error.stat[0].scale = FE_SCALE_COUNTER;
 482                        c->block_error.stat[0].uvalue = dev->block_error;
 483                } else {
 484                        dev->dvbv3_ber = buf[0] << 8 | buf[1] << 0;
 485                        dev->post_bit_error += buf[0] << 8 | buf[1] << 0;
 486                        c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
 487                        c->post_bit_error.stat[0].uvalue = dev->post_bit_error;
 488                        c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
 489                }
 490        } else {
 491                c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
 492                c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
 493        }
 494
 495        return ret;
 496error:
 497        dev_dbg(&client->dev, "failed=%d\n", ret);
 498        return ret;
 499}
 500
 501static int tda10071_read_snr(struct dvb_frontend *fe, u16 *snr)
 502{
 503        struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 504
 505        if (c->cnr.stat[0].scale == FE_SCALE_DECIBEL)
 506                *snr = div_s64(c->cnr.stat[0].svalue, 100);
 507        else
 508                *snr = 0;
 509        return 0;
 510}
 511
 512static int tda10071_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
 513{
 514        struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 515        unsigned int uitmp;
 516
 517        if (c->strength.stat[0].scale == FE_SCALE_DECIBEL) {
 518                uitmp = div_s64(c->strength.stat[0].svalue, 1000) + 256;
 519                uitmp = clamp(uitmp, 181U, 236U); /* -75dBm - -20dBm */
 520                /* scale value to 0x0000-0xffff */
 521                *strength = (uitmp-181) * 0xffff / (236-181);
 522        } else {
 523                *strength = 0;
 524        }
 525        return 0;
 526}
 527
 528static int tda10071_read_ber(struct dvb_frontend *fe, u32 *ber)
 529{
 530        struct tda10071_dev *dev = fe->demodulator_priv;
 531
 532        *ber = dev->dvbv3_ber;
 533        return 0;
 534}
 535
 536static int tda10071_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
 537{
 538        struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 539
 540        if (c->block_error.stat[0].scale == FE_SCALE_COUNTER)
 541                *ucblocks = c->block_error.stat[0].uvalue;
 542        else
 543                *ucblocks = 0;
 544        return 0;
 545}
 546
 547static int tda10071_set_frontend(struct dvb_frontend *fe)
 548{
 549        struct tda10071_dev *dev = fe->demodulator_priv;
 550        struct i2c_client *client = dev->client;
 551        struct tda10071_cmd cmd;
 552        struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 553        int ret, i;
 554        u8 mode, rolloff, pilot, inversion, div;
 555        enum fe_modulation modulation;
 556
 557        dev_dbg(&client->dev,
 558                "delivery_system=%d modulation=%d frequency=%u symbol_rate=%d inversion=%d pilot=%d rolloff=%d\n",
 559                c->delivery_system, c->modulation, c->frequency, c->symbol_rate,
 560                c->inversion, c->pilot, c->rolloff);
 561
 562        dev->delivery_system = SYS_UNDEFINED;
 563
 564        if (!dev->warm) {
 565                ret = -EFAULT;
 566                goto error;
 567        }
 568
 569        switch (c->inversion) {
 570        case INVERSION_OFF:
 571                inversion = 1;
 572                break;
 573        case INVERSION_ON:
 574                inversion = 0;
 575                break;
 576        case INVERSION_AUTO:
 577                /* 2 = auto; try first on then off
 578                 * 3 = auto; try first off then on */
 579                inversion = 3;
 580                break;
 581        default:
 582                dev_dbg(&client->dev, "invalid inversion\n");
 583                ret = -EINVAL;
 584                goto error;
 585        }
 586
 587        switch (c->delivery_system) {
 588        case SYS_DVBS:
 589                modulation = QPSK;
 590                rolloff = 0;
 591                pilot = 2;
 592                break;
 593        case SYS_DVBS2:
 594                modulation = c->modulation;
 595
 596                switch (c->rolloff) {
 597                case ROLLOFF_20:
 598                        rolloff = 2;
 599                        break;
 600                case ROLLOFF_25:
 601                        rolloff = 1;
 602                        break;
 603                case ROLLOFF_35:
 604                        rolloff = 0;
 605                        break;
 606                case ROLLOFF_AUTO:
 607                default:
 608                        dev_dbg(&client->dev, "invalid rolloff\n");
 609                        ret = -EINVAL;
 610                        goto error;
 611                }
 612
 613                switch (c->pilot) {
 614                case PILOT_OFF:
 615                        pilot = 0;
 616                        break;
 617                case PILOT_ON:
 618                        pilot = 1;
 619                        break;
 620                case PILOT_AUTO:
 621                        pilot = 2;
 622                        break;
 623                default:
 624                        dev_dbg(&client->dev, "invalid pilot\n");
 625                        ret = -EINVAL;
 626                        goto error;
 627                }
 628                break;
 629        default:
 630                dev_dbg(&client->dev, "invalid delivery_system\n");
 631                ret = -EINVAL;
 632                goto error;
 633        }
 634
 635        for (i = 0, mode = 0xff; i < ARRAY_SIZE(TDA10071_MODCOD); i++) {
 636                if (c->delivery_system == TDA10071_MODCOD[i].delivery_system &&
 637                        modulation == TDA10071_MODCOD[i].modulation &&
 638                        c->fec_inner == TDA10071_MODCOD[i].fec) {
 639                        mode = TDA10071_MODCOD[i].val;
 640                        dev_dbg(&client->dev, "mode found=%02x\n", mode);
 641                        break;
 642                }
 643        }
 644
 645        if (mode == 0xff) {
 646                dev_dbg(&client->dev, "invalid parameter combination\n");
 647                ret = -EINVAL;
 648                goto error;
 649        }
 650
 651        if (c->symbol_rate <= 5000000)
 652                div = 14;
 653        else
 654                div = 4;
 655
 656        ret = regmap_write(dev->regmap, 0x81, div);
 657        if (ret)
 658                goto error;
 659
 660        ret = regmap_write(dev->regmap, 0xe3, div);
 661        if (ret)
 662                goto error;
 663
 664        cmd.args[0] = CMD_CHANGE_CHANNEL;
 665        cmd.args[1] = 0;
 666        cmd.args[2] = mode;
 667        cmd.args[3] = (c->frequency >> 16) & 0xff;
 668        cmd.args[4] = (c->frequency >>  8) & 0xff;
 669        cmd.args[5] = (c->frequency >>  0) & 0xff;
 670        cmd.args[6] = ((c->symbol_rate / 1000) >> 8) & 0xff;
 671        cmd.args[7] = ((c->symbol_rate / 1000) >> 0) & 0xff;
 672        cmd.args[8] = ((tda10071_ops.info.frequency_tolerance_hz / 1000) >> 8) & 0xff;
 673        cmd.args[9] = ((tda10071_ops.info.frequency_tolerance_hz / 1000) >> 0) & 0xff;
 674        cmd.args[10] = rolloff;
 675        cmd.args[11] = inversion;
 676        cmd.args[12] = pilot;
 677        cmd.args[13] = 0x00;
 678        cmd.args[14] = 0x00;
 679        cmd.len = 15;
 680        ret = tda10071_cmd_execute(dev, &cmd);
 681        if (ret)
 682                goto error;
 683
 684        dev->delivery_system = c->delivery_system;
 685
 686        return ret;
 687error:
 688        dev_dbg(&client->dev, "failed=%d\n", ret);
 689        return ret;
 690}
 691
 692static int tda10071_get_frontend(struct dvb_frontend *fe,
 693                                 struct dtv_frontend_properties *c)
 694{
 695        struct tda10071_dev *dev = fe->demodulator_priv;
 696        struct i2c_client *client = dev->client;
 697        int ret, i;
 698        u8 buf[5], tmp;
 699
 700        if (!dev->warm || !(dev->fe_status & FE_HAS_LOCK)) {
 701                ret = 0;
 702                goto error;
 703        }
 704
 705        ret = regmap_bulk_read(dev->regmap, 0x30, buf, 5);
 706        if (ret)
 707                goto error;
 708
 709        tmp = buf[0] & 0x3f;
 710        for (i = 0; i < ARRAY_SIZE(TDA10071_MODCOD); i++) {
 711                if (tmp == TDA10071_MODCOD[i].val) {
 712                        c->modulation = TDA10071_MODCOD[i].modulation;
 713                        c->fec_inner = TDA10071_MODCOD[i].fec;
 714                        c->delivery_system = TDA10071_MODCOD[i].delivery_system;
 715                }
 716        }
 717
 718        switch ((buf[1] >> 0) & 0x01) {
 719        case 0:
 720                c->inversion = INVERSION_ON;
 721                break;
 722        case 1:
 723                c->inversion = INVERSION_OFF;
 724                break;
 725        }
 726
 727        switch ((buf[1] >> 7) & 0x01) {
 728        case 0:
 729                c->pilot = PILOT_OFF;
 730                break;
 731        case 1:
 732                c->pilot = PILOT_ON;
 733                break;
 734        }
 735
 736        c->frequency = (buf[2] << 16) | (buf[3] << 8) | (buf[4] << 0);
 737
 738        ret = regmap_bulk_read(dev->regmap, 0x52, buf, 3);
 739        if (ret)
 740                goto error;
 741
 742        c->symbol_rate = ((buf[0] << 16) | (buf[1] << 8) | (buf[2] << 0)) * 1000;
 743
 744        return ret;
 745error:
 746        dev_dbg(&client->dev, "failed=%d\n", ret);
 747        return ret;
 748}
 749
 750static int tda10071_init(struct dvb_frontend *fe)
 751{
 752        struct tda10071_dev *dev = fe->demodulator_priv;
 753        struct i2c_client *client = dev->client;
 754        struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 755        struct tda10071_cmd cmd;
 756        int ret, i, len, remaining, fw_size;
 757        unsigned int uitmp;
 758        const struct firmware *fw;
 759        u8 *fw_file = TDA10071_FIRMWARE;
 760        u8 tmp, buf[4];
 761        struct tda10071_reg_val_mask tab[] = {
 762                { 0xcd, 0x00, 0x07 },
 763                { 0x80, 0x00, 0x02 },
 764                { 0xcd, 0x00, 0xc0 },
 765                { 0xce, 0x00, 0x1b },
 766                { 0x9d, 0x00, 0x01 },
 767                { 0x9d, 0x00, 0x02 },
 768                { 0x9e, 0x00, 0x01 },
 769                { 0x87, 0x00, 0x80 },
 770                { 0xce, 0x00, 0x08 },
 771                { 0xce, 0x00, 0x10 },
 772        };
 773        struct tda10071_reg_val_mask tab2[] = {
 774                { 0xf1, 0x70, 0xff },
 775                { 0x88, dev->pll_multiplier, 0x3f },
 776                { 0x89, 0x00, 0x10 },
 777                { 0x89, 0x10, 0x10 },
 778                { 0xc0, 0x01, 0x01 },
 779                { 0xc0, 0x00, 0x01 },
 780                { 0xe0, 0xff, 0xff },
 781                { 0xe0, 0x00, 0xff },
 782                { 0x96, 0x1e, 0x7e },
 783                { 0x8b, 0x08, 0x08 },
 784                { 0x8b, 0x00, 0x08 },
 785                { 0x8f, 0x1a, 0x7e },
 786                { 0x8c, 0x68, 0xff },
 787                { 0x8d, 0x08, 0xff },
 788                { 0x8e, 0x4c, 0xff },
 789                { 0x8f, 0x01, 0x01 },
 790                { 0x8b, 0x04, 0x04 },
 791                { 0x8b, 0x00, 0x04 },
 792                { 0x87, 0x05, 0x07 },
 793                { 0x80, 0x00, 0x20 },
 794                { 0xc8, 0x01, 0xff },
 795                { 0xb4, 0x47, 0xff },
 796                { 0xb5, 0x9c, 0xff },
 797                { 0xb6, 0x7d, 0xff },
 798                { 0xba, 0x00, 0x03 },
 799                { 0xb7, 0x47, 0xff },
 800                { 0xb8, 0x9c, 0xff },
 801                { 0xb9, 0x7d, 0xff },
 802                { 0xba, 0x00, 0x0c },
 803                { 0xc8, 0x00, 0xff },
 804                { 0xcd, 0x00, 0x04 },
 805                { 0xcd, 0x00, 0x20 },
 806                { 0xe8, 0x02, 0xff },
 807                { 0xcf, 0x20, 0xff },
 808                { 0x9b, 0xd7, 0xff },
 809                { 0x9a, 0x01, 0x03 },
 810                { 0xa8, 0x05, 0x0f },
 811                { 0xa8, 0x65, 0xf0 },
 812                { 0xa6, 0xa0, 0xf0 },
 813                { 0x9d, 0x50, 0xfc },
 814                { 0x9e, 0x20, 0xe0 },
 815                { 0xa3, 0x1c, 0x7c },
 816                { 0xd5, 0x03, 0x03 },
 817        };
 818
 819        if (dev->warm) {
 820                /* warm state - wake up device from sleep */
 821
 822                for (i = 0; i < ARRAY_SIZE(tab); i++) {
 823                        ret = tda10071_wr_reg_mask(dev, tab[i].reg,
 824                                tab[i].val, tab[i].mask);
 825                        if (ret)
 826                                goto error;
 827                }
 828
 829                cmd.args[0] = CMD_SET_SLEEP_MODE;
 830                cmd.args[1] = 0;
 831                cmd.args[2] = 0;
 832                cmd.len = 3;
 833                ret = tda10071_cmd_execute(dev, &cmd);
 834                if (ret)
 835                        goto error;
 836        } else {
 837                /* cold state - try to download firmware */
 838
 839                /* request the firmware, this will block and timeout */
 840                ret = request_firmware(&fw, fw_file, &client->dev);
 841                if (ret) {
 842                        dev_err(&client->dev,
 843                                "did not find the firmware file '%s' (status %d). You can use <kernel_dir>/scripts/get_dvb_firmware to get the firmware\n",
 844                                fw_file, ret);
 845                        goto error;
 846                }
 847
 848                /* init */
 849                for (i = 0; i < ARRAY_SIZE(tab2); i++) {
 850                        ret = tda10071_wr_reg_mask(dev, tab2[i].reg,
 851                                tab2[i].val, tab2[i].mask);
 852                        if (ret)
 853                                goto error_release_firmware;
 854                }
 855
 856                /*  download firmware */
 857                ret = regmap_write(dev->regmap, 0xe0, 0x7f);
 858                if (ret)
 859                        goto error_release_firmware;
 860
 861                ret = regmap_write(dev->regmap, 0xf7, 0x81);
 862                if (ret)
 863                        goto error_release_firmware;
 864
 865                ret = regmap_write(dev->regmap, 0xf8, 0x00);
 866                if (ret)
 867                        goto error_release_firmware;
 868
 869                ret = regmap_write(dev->regmap, 0xf9, 0x00);
 870                if (ret)
 871                        goto error_release_firmware;
 872
 873                dev_info(&client->dev,
 874                         "found a '%s' in cold state, will try to load a firmware\n",
 875                         tda10071_ops.info.name);
 876                dev_info(&client->dev, "downloading firmware from file '%s'\n",
 877                         fw_file);
 878
 879                /* do not download last byte */
 880                fw_size = fw->size - 1;
 881
 882                for (remaining = fw_size; remaining > 0;
 883                        remaining -= (dev->i2c_wr_max - 1)) {
 884                        len = remaining;
 885                        if (len > (dev->i2c_wr_max - 1))
 886                                len = (dev->i2c_wr_max - 1);
 887
 888                        ret = regmap_bulk_write(dev->regmap, 0xfa,
 889                                (u8 *) &fw->data[fw_size - remaining], len);
 890                        if (ret) {
 891                                dev_err(&client->dev,
 892                                        "firmware download failed=%d\n", ret);
 893                                goto error_release_firmware;
 894                        }
 895                }
 896                release_firmware(fw);
 897
 898                ret = regmap_write(dev->regmap, 0xf7, 0x0c);
 899                if (ret)
 900                        goto error;
 901
 902                ret = regmap_write(dev->regmap, 0xe0, 0x00);
 903                if (ret)
 904                        goto error;
 905
 906                /* wait firmware start */
 907                msleep(250);
 908
 909                /* firmware status */
 910                ret = regmap_read(dev->regmap, 0x51, &uitmp);
 911                if (ret)
 912                        goto error;
 913
 914                if (uitmp) {
 915                        dev_info(&client->dev, "firmware did not run\n");
 916                        ret = -EFAULT;
 917                        goto error;
 918                } else {
 919                        dev->warm = true;
 920                }
 921
 922                cmd.args[0] = CMD_GET_FW_VERSION;
 923                cmd.len = 1;
 924                ret = tda10071_cmd_execute(dev, &cmd);
 925                if (ret)
 926                        goto error;
 927
 928                ret = regmap_bulk_read(dev->regmap, cmd.len, buf, 4);
 929                if (ret)
 930                        goto error;
 931
 932                dev_info(&client->dev, "firmware version %d.%d.%d.%d\n",
 933                         buf[0], buf[1], buf[2], buf[3]);
 934                dev_info(&client->dev, "found a '%s' in warm state\n",
 935                         tda10071_ops.info.name);
 936
 937                ret = regmap_bulk_read(dev->regmap, 0x81, buf, 2);
 938                if (ret)
 939                        goto error;
 940
 941                cmd.args[0] = CMD_DEMOD_INIT;
 942                cmd.args[1] = ((dev->clk / 1000) >> 8) & 0xff;
 943                cmd.args[2] = ((dev->clk / 1000) >> 0) & 0xff;
 944                cmd.args[3] = buf[0];
 945                cmd.args[4] = buf[1];
 946                cmd.args[5] = dev->pll_multiplier;
 947                cmd.args[6] = dev->spec_inv;
 948                cmd.args[7] = 0x00;
 949                cmd.len = 8;
 950                ret = tda10071_cmd_execute(dev, &cmd);
 951                if (ret)
 952                        goto error;
 953
 954                if (dev->tuner_i2c_addr)
 955                        tmp = dev->tuner_i2c_addr;
 956                else
 957                        tmp = 0x14;
 958
 959                cmd.args[0] = CMD_TUNER_INIT;
 960                cmd.args[1] = 0x00;
 961                cmd.args[2] = 0x00;
 962                cmd.args[3] = 0x00;
 963                cmd.args[4] = 0x00;
 964                cmd.args[5] = tmp;
 965                cmd.args[6] = 0x00;
 966                cmd.args[7] = 0x03;
 967                cmd.args[8] = 0x02;
 968                cmd.args[9] = 0x02;
 969                cmd.args[10] = 0x00;
 970                cmd.args[11] = 0x00;
 971                cmd.args[12] = 0x00;
 972                cmd.args[13] = 0x00;
 973                cmd.args[14] = 0x00;
 974                cmd.len = 15;
 975                ret = tda10071_cmd_execute(dev, &cmd);
 976                if (ret)
 977                        goto error;
 978
 979                cmd.args[0] = CMD_MPEG_CONFIG;
 980                cmd.args[1] = 0;
 981                cmd.args[2] = dev->ts_mode;
 982                cmd.args[3] = 0x00;
 983                cmd.args[4] = 0x04;
 984                cmd.args[5] = 0x00;
 985                cmd.len = 6;
 986                ret = tda10071_cmd_execute(dev, &cmd);
 987                if (ret)
 988                        goto error;
 989
 990                ret = regmap_update_bits(dev->regmap, 0xf0, 0x01, 0x01);
 991                if (ret)
 992                        goto error;
 993
 994                cmd.args[0] = CMD_LNB_CONFIG;
 995                cmd.args[1] = 0;
 996                cmd.args[2] = 150;
 997                cmd.args[3] = 3;
 998                cmd.args[4] = 22;
 999                cmd.args[5] = 1;
1000                cmd.args[6] = 1;
1001                cmd.args[7] = 30;
1002                cmd.args[8] = 30;
1003                cmd.args[9] = 30;
1004                cmd.args[10] = 30;
1005                cmd.len = 11;
1006                ret = tda10071_cmd_execute(dev, &cmd);
1007                if (ret)
1008                        goto error;
1009
1010                cmd.args[0] = CMD_BER_CONTROL;
1011                cmd.args[1] = 0;
1012                cmd.args[2] = 14;
1013                cmd.args[3] = 14;
1014                cmd.len = 4;
1015                ret = tda10071_cmd_execute(dev, &cmd);
1016                if (ret)
1017                        goto error;
1018        }
1019
1020        /* init stats here in order signal app which stats are supported */
1021        c->strength.len = 1;
1022        c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
1023        c->cnr.len = 1;
1024        c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
1025        c->post_bit_error.len = 1;
1026        c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
1027        c->block_error.len = 1;
1028        c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
1029
1030        return ret;
1031error_release_firmware:
1032        release_firmware(fw);
1033error:
1034        dev_dbg(&client->dev, "failed=%d\n", ret);
1035        return ret;
1036}
1037
1038static int tda10071_sleep(struct dvb_frontend *fe)
1039{
1040        struct tda10071_dev *dev = fe->demodulator_priv;
1041        struct i2c_client *client = dev->client;
1042        struct tda10071_cmd cmd;
1043        int ret, i;
1044        struct tda10071_reg_val_mask tab[] = {
1045                { 0xcd, 0x07, 0x07 },
1046                { 0x80, 0x02, 0x02 },
1047                { 0xcd, 0xc0, 0xc0 },
1048                { 0xce, 0x1b, 0x1b },
1049                { 0x9d, 0x01, 0x01 },
1050                { 0x9d, 0x02, 0x02 },
1051                { 0x9e, 0x01, 0x01 },
1052                { 0x87, 0x80, 0x80 },
1053                { 0xce, 0x08, 0x08 },
1054                { 0xce, 0x10, 0x10 },
1055        };
1056
1057        if (!dev->warm) {
1058                ret = -EFAULT;
1059                goto error;
1060        }
1061
1062        cmd.args[0] = CMD_SET_SLEEP_MODE;
1063        cmd.args[1] = 0;
1064        cmd.args[2] = 1;
1065        cmd.len = 3;
1066        ret = tda10071_cmd_execute(dev, &cmd);
1067        if (ret)
1068                goto error;
1069
1070        for (i = 0; i < ARRAY_SIZE(tab); i++) {
1071                ret = tda10071_wr_reg_mask(dev, tab[i].reg, tab[i].val,
1072                        tab[i].mask);
1073                if (ret)
1074                        goto error;
1075        }
1076
1077        return ret;
1078error:
1079        dev_dbg(&client->dev, "failed=%d\n", ret);
1080        return ret;
1081}
1082
1083static int tda10071_get_tune_settings(struct dvb_frontend *fe,
1084        struct dvb_frontend_tune_settings *s)
1085{
1086        s->min_delay_ms = 8000;
1087        s->step_size = 0;
1088        s->max_drift = 0;
1089
1090        return 0;
1091}
1092
1093static const struct dvb_frontend_ops tda10071_ops = {
1094        .delsys = { SYS_DVBS, SYS_DVBS2 },
1095        .info = {
1096                .name = "NXP TDA10071",
1097                .frequency_min_hz    =  950 * MHz,
1098                .frequency_max_hz    = 2150 * MHz,
1099                .frequency_tolerance_hz = 5 * MHz,
1100                .symbol_rate_min = 1000000,
1101                .symbol_rate_max = 45000000,
1102                .caps = FE_CAN_INVERSION_AUTO |
1103                        FE_CAN_FEC_1_2 |
1104                        FE_CAN_FEC_2_3 |
1105                        FE_CAN_FEC_3_4 |
1106                        FE_CAN_FEC_4_5 |
1107                        FE_CAN_FEC_5_6 |
1108                        FE_CAN_FEC_6_7 |
1109                        FE_CAN_FEC_7_8 |
1110                        FE_CAN_FEC_8_9 |
1111                        FE_CAN_FEC_AUTO |
1112                        FE_CAN_QPSK |
1113                        FE_CAN_RECOVER |
1114                        FE_CAN_2G_MODULATION
1115        },
1116
1117        .get_tune_settings = tda10071_get_tune_settings,
1118
1119        .init = tda10071_init,
1120        .sleep = tda10071_sleep,
1121
1122        .set_frontend = tda10071_set_frontend,
1123        .get_frontend = tda10071_get_frontend,
1124
1125        .read_status = tda10071_read_status,
1126        .read_snr = tda10071_read_snr,
1127        .read_signal_strength = tda10071_read_signal_strength,
1128        .read_ber = tda10071_read_ber,
1129        .read_ucblocks = tda10071_read_ucblocks,
1130
1131        .diseqc_send_master_cmd = tda10071_diseqc_send_master_cmd,
1132        .diseqc_recv_slave_reply = tda10071_diseqc_recv_slave_reply,
1133        .diseqc_send_burst = tda10071_diseqc_send_burst,
1134
1135        .set_tone = tda10071_set_tone,
1136        .set_voltage = tda10071_set_voltage,
1137};
1138
1139static struct dvb_frontend *tda10071_get_dvb_frontend(struct i2c_client *client)
1140{
1141        struct tda10071_dev *dev = i2c_get_clientdata(client);
1142
1143        dev_dbg(&client->dev, "\n");
1144
1145        return &dev->fe;
1146}
1147
1148static int tda10071_probe(struct i2c_client *client,
1149                        const struct i2c_device_id *id)
1150{
1151        struct tda10071_dev *dev;
1152        struct tda10071_platform_data *pdata = client->dev.platform_data;
1153        int ret;
1154        unsigned int uitmp;
1155        static const struct regmap_config regmap_config = {
1156                .reg_bits = 8,
1157                .val_bits = 8,
1158        };
1159
1160        dev = kzalloc(sizeof(*dev), GFP_KERNEL);
1161        if (!dev) {
1162                ret = -ENOMEM;
1163                goto err;
1164        }
1165
1166        dev->client = client;
1167        mutex_init(&dev->cmd_execute_mutex);
1168        dev->clk = pdata->clk;
1169        dev->i2c_wr_max = pdata->i2c_wr_max;
1170        dev->ts_mode = pdata->ts_mode;
1171        dev->spec_inv = pdata->spec_inv;
1172        dev->pll_multiplier = pdata->pll_multiplier;
1173        dev->tuner_i2c_addr = pdata->tuner_i2c_addr;
1174        dev->regmap = devm_regmap_init_i2c(client, &regmap_config);
1175        if (IS_ERR(dev->regmap)) {
1176                ret = PTR_ERR(dev->regmap);
1177                goto err_kfree;
1178        }
1179
1180        /* chip ID */
1181        ret = regmap_read(dev->regmap, 0xff, &uitmp);
1182        if (ret)
1183                goto err_kfree;
1184        if (uitmp != 0x0f) {
1185                ret = -ENODEV;
1186                goto err_kfree;
1187        }
1188
1189        /* chip type */
1190        ret = regmap_read(dev->regmap, 0xdd, &uitmp);
1191        if (ret)
1192                goto err_kfree;
1193        if (uitmp != 0x00) {
1194                ret = -ENODEV;
1195                goto err_kfree;
1196        }
1197
1198        /* chip version */
1199        ret = regmap_read(dev->regmap, 0xfe, &uitmp);
1200        if (ret)
1201                goto err_kfree;
1202        if (uitmp != 0x01) {
1203                ret = -ENODEV;
1204                goto err_kfree;
1205        }
1206
1207        /* create dvb_frontend */
1208        memcpy(&dev->fe.ops, &tda10071_ops, sizeof(struct dvb_frontend_ops));
1209        dev->fe.demodulator_priv = dev;
1210        i2c_set_clientdata(client, dev);
1211
1212        /* setup callbacks */
1213        pdata->get_dvb_frontend = tda10071_get_dvb_frontend;
1214
1215        dev_info(&client->dev, "NXP TDA10071 successfully identified\n");
1216        return 0;
1217err_kfree:
1218        kfree(dev);
1219err:
1220        dev_dbg(&client->dev, "failed=%d\n", ret);
1221        return ret;
1222}
1223
1224static int tda10071_remove(struct i2c_client *client)
1225{
1226        struct tda10071_dev *dev = i2c_get_clientdata(client);
1227
1228        dev_dbg(&client->dev, "\n");
1229
1230        kfree(dev);
1231        return 0;
1232}
1233
1234static const struct i2c_device_id tda10071_id_table[] = {
1235        {"tda10071_cx24118", 0},
1236        {}
1237};
1238MODULE_DEVICE_TABLE(i2c, tda10071_id_table);
1239
1240static struct i2c_driver tda10071_driver = {
1241        .driver = {
1242                .name   = "tda10071",
1243                .suppress_bind_attrs = true,
1244        },
1245        .probe          = tda10071_probe,
1246        .remove         = tda10071_remove,
1247        .id_table       = tda10071_id_table,
1248};
1249
1250module_i2c_driver(tda10071_driver);
1251
1252MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1253MODULE_DESCRIPTION("NXP TDA10071 DVB-S/S2 demodulator driver");
1254MODULE_LICENSE("GPL");
1255MODULE_FIRMWARE(TDA10071_FIRMWARE);
1256