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                        dev->dvbv3_ber = buf[0] << 24 | buf[1] << 16 |
 474                                         buf[2] << 8 | buf[3] << 0;
 475                        dev->post_bit_error += buf[0] << 24 | buf[1] << 16 |
 476                                               buf[2] << 8 | buf[3] << 0;
 477                        c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
 478                        c->post_bit_error.stat[0].uvalue = dev->post_bit_error;
 479                        dev->block_error += buf[4] << 8 | buf[5] << 0;
 480                        c->block_error.stat[0].scale = FE_SCALE_COUNTER;
 481                        c->block_error.stat[0].uvalue = dev->block_error;
 482                } else {
 483                        dev->dvbv3_ber = buf[0] << 8 | buf[1] << 0;
 484                        dev->post_bit_error += buf[0] << 8 | buf[1] << 0;
 485                        c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
 486                        c->post_bit_error.stat[0].uvalue = dev->post_bit_error;
 487                        c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
 488                }
 489        } else {
 490                c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
 491                c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
 492        }
 493
 494        return ret;
 495error:
 496        dev_dbg(&client->dev, "failed=%d\n", ret);
 497        return ret;
 498}
 499
 500static int tda10071_read_snr(struct dvb_frontend *fe, u16 *snr)
 501{
 502        struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 503
 504        if (c->cnr.stat[0].scale == FE_SCALE_DECIBEL)
 505                *snr = div_s64(c->cnr.stat[0].svalue, 100);
 506        else
 507                *snr = 0;
 508        return 0;
 509}
 510
 511static int tda10071_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
 512{
 513        struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 514        unsigned int uitmp;
 515
 516        if (c->strength.stat[0].scale == FE_SCALE_DECIBEL) {
 517                uitmp = div_s64(c->strength.stat[0].svalue, 1000) + 256;
 518                uitmp = clamp(uitmp, 181U, 236U); /* -75dBm - -20dBm */
 519                /* scale value to 0x0000-0xffff */
 520                *strength = (uitmp-181) * 0xffff / (236-181);
 521        } else {
 522                *strength = 0;
 523        }
 524        return 0;
 525}
 526
 527static int tda10071_read_ber(struct dvb_frontend *fe, u32 *ber)
 528{
 529        struct tda10071_dev *dev = fe->demodulator_priv;
 530
 531        *ber = dev->dvbv3_ber;
 532        return 0;
 533}
 534
 535static int tda10071_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
 536{
 537        struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 538
 539        if (c->block_error.stat[0].scale == FE_SCALE_COUNTER)
 540                *ucblocks = c->block_error.stat[0].uvalue;
 541        else
 542                *ucblocks = 0;
 543        return 0;
 544}
 545
 546static int tda10071_set_frontend(struct dvb_frontend *fe)
 547{
 548        struct tda10071_dev *dev = fe->demodulator_priv;
 549        struct i2c_client *client = dev->client;
 550        struct tda10071_cmd cmd;
 551        struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 552        int ret, i;
 553        u8 mode, rolloff, pilot, inversion, div;
 554        enum fe_modulation modulation;
 555
 556        dev_dbg(&client->dev,
 557                "delivery_system=%d modulation=%d frequency=%u symbol_rate=%d inversion=%d pilot=%d rolloff=%d\n",
 558                c->delivery_system, c->modulation, c->frequency, c->symbol_rate,
 559                c->inversion, c->pilot, c->rolloff);
 560
 561        dev->delivery_system = SYS_UNDEFINED;
 562
 563        if (!dev->warm) {
 564                ret = -EFAULT;
 565                goto error;
 566        }
 567
 568        switch (c->inversion) {
 569        case INVERSION_OFF:
 570                inversion = 1;
 571                break;
 572        case INVERSION_ON:
 573                inversion = 0;
 574                break;
 575        case INVERSION_AUTO:
 576                /* 2 = auto; try first on then off
 577                 * 3 = auto; try first off then on */
 578                inversion = 3;
 579                break;
 580        default:
 581                dev_dbg(&client->dev, "invalid inversion\n");
 582                ret = -EINVAL;
 583                goto error;
 584        }
 585
 586        switch (c->delivery_system) {
 587        case SYS_DVBS:
 588                modulation = QPSK;
 589                rolloff = 0;
 590                pilot = 2;
 591                break;
 592        case SYS_DVBS2:
 593                modulation = c->modulation;
 594
 595                switch (c->rolloff) {
 596                case ROLLOFF_20:
 597                        rolloff = 2;
 598                        break;
 599                case ROLLOFF_25:
 600                        rolloff = 1;
 601                        break;
 602                case ROLLOFF_35:
 603                        rolloff = 0;
 604                        break;
 605                case ROLLOFF_AUTO:
 606                default:
 607                        dev_dbg(&client->dev, "invalid rolloff\n");
 608                        ret = -EINVAL;
 609                        goto error;
 610                }
 611
 612                switch (c->pilot) {
 613                case PILOT_OFF:
 614                        pilot = 0;
 615                        break;
 616                case PILOT_ON:
 617                        pilot = 1;
 618                        break;
 619                case PILOT_AUTO:
 620                        pilot = 2;
 621                        break;
 622                default:
 623                        dev_dbg(&client->dev, "invalid pilot\n");
 624                        ret = -EINVAL;
 625                        goto error;
 626                }
 627                break;
 628        default:
 629                dev_dbg(&client->dev, "invalid delivery_system\n");
 630                ret = -EINVAL;
 631                goto error;
 632        }
 633
 634        for (i = 0, mode = 0xff; i < ARRAY_SIZE(TDA10071_MODCOD); i++) {
 635                if (c->delivery_system == TDA10071_MODCOD[i].delivery_system &&
 636                        modulation == TDA10071_MODCOD[i].modulation &&
 637                        c->fec_inner == TDA10071_MODCOD[i].fec) {
 638                        mode = TDA10071_MODCOD[i].val;
 639                        dev_dbg(&client->dev, "mode found=%02x\n", mode);
 640                        break;
 641                }
 642        }
 643
 644        if (mode == 0xff) {
 645                dev_dbg(&client->dev, "invalid parameter combination\n");
 646                ret = -EINVAL;
 647                goto error;
 648        }
 649
 650        if (c->symbol_rate <= 5000000)
 651                div = 14;
 652        else
 653                div = 4;
 654
 655        ret = regmap_write(dev->regmap, 0x81, div);
 656        if (ret)
 657                goto error;
 658
 659        ret = regmap_write(dev->regmap, 0xe3, div);
 660        if (ret)
 661                goto error;
 662
 663        cmd.args[0] = CMD_CHANGE_CHANNEL;
 664        cmd.args[1] = 0;
 665        cmd.args[2] = mode;
 666        cmd.args[3] = (c->frequency >> 16) & 0xff;
 667        cmd.args[4] = (c->frequency >>  8) & 0xff;
 668        cmd.args[5] = (c->frequency >>  0) & 0xff;
 669        cmd.args[6] = ((c->symbol_rate / 1000) >> 8) & 0xff;
 670        cmd.args[7] = ((c->symbol_rate / 1000) >> 0) & 0xff;
 671        cmd.args[8] = ((tda10071_ops.info.frequency_tolerance_hz / 1000) >> 8) & 0xff;
 672        cmd.args[9] = ((tda10071_ops.info.frequency_tolerance_hz / 1000) >> 0) & 0xff;
 673        cmd.args[10] = rolloff;
 674        cmd.args[11] = inversion;
 675        cmd.args[12] = pilot;
 676        cmd.args[13] = 0x00;
 677        cmd.args[14] = 0x00;
 678        cmd.len = 15;
 679        ret = tda10071_cmd_execute(dev, &cmd);
 680        if (ret)
 681                goto error;
 682
 683        dev->delivery_system = c->delivery_system;
 684
 685        return ret;
 686error:
 687        dev_dbg(&client->dev, "failed=%d\n", ret);
 688        return ret;
 689}
 690
 691static int tda10071_get_frontend(struct dvb_frontend *fe,
 692                                 struct dtv_frontend_properties *c)
 693{
 694        struct tda10071_dev *dev = fe->demodulator_priv;
 695        struct i2c_client *client = dev->client;
 696        int ret, i;
 697        u8 buf[5], tmp;
 698
 699        if (!dev->warm || !(dev->fe_status & FE_HAS_LOCK)) {
 700                ret = 0;
 701                goto error;
 702        }
 703
 704        ret = regmap_bulk_read(dev->regmap, 0x30, buf, 5);
 705        if (ret)
 706                goto error;
 707
 708        tmp = buf[0] & 0x3f;
 709        for (i = 0; i < ARRAY_SIZE(TDA10071_MODCOD); i++) {
 710                if (tmp == TDA10071_MODCOD[i].val) {
 711                        c->modulation = TDA10071_MODCOD[i].modulation;
 712                        c->fec_inner = TDA10071_MODCOD[i].fec;
 713                        c->delivery_system = TDA10071_MODCOD[i].delivery_system;
 714                }
 715        }
 716
 717        switch ((buf[1] >> 0) & 0x01) {
 718        case 0:
 719                c->inversion = INVERSION_ON;
 720                break;
 721        case 1:
 722                c->inversion = INVERSION_OFF;
 723                break;
 724        }
 725
 726        switch ((buf[1] >> 7) & 0x01) {
 727        case 0:
 728                c->pilot = PILOT_OFF;
 729                break;
 730        case 1:
 731                c->pilot = PILOT_ON;
 732                break;
 733        }
 734
 735        c->frequency = (buf[2] << 16) | (buf[3] << 8) | (buf[4] << 0);
 736
 737        ret = regmap_bulk_read(dev->regmap, 0x52, buf, 3);
 738        if (ret)
 739                goto error;
 740
 741        c->symbol_rate = ((buf[0] << 16) | (buf[1] << 8) | (buf[2] << 0)) * 1000;
 742
 743        return ret;
 744error:
 745        dev_dbg(&client->dev, "failed=%d\n", ret);
 746        return ret;
 747}
 748
 749static int tda10071_init(struct dvb_frontend *fe)
 750{
 751        struct tda10071_dev *dev = fe->demodulator_priv;
 752        struct i2c_client *client = dev->client;
 753        struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 754        struct tda10071_cmd cmd;
 755        int ret, i, len, remaining, fw_size;
 756        unsigned int uitmp;
 757        const struct firmware *fw;
 758        u8 *fw_file = TDA10071_FIRMWARE;
 759        u8 tmp, buf[4];
 760        struct tda10071_reg_val_mask tab[] = {
 761                { 0xcd, 0x00, 0x07 },
 762                { 0x80, 0x00, 0x02 },
 763                { 0xcd, 0x00, 0xc0 },
 764                { 0xce, 0x00, 0x1b },
 765                { 0x9d, 0x00, 0x01 },
 766                { 0x9d, 0x00, 0x02 },
 767                { 0x9e, 0x00, 0x01 },
 768                { 0x87, 0x00, 0x80 },
 769                { 0xce, 0x00, 0x08 },
 770                { 0xce, 0x00, 0x10 },
 771        };
 772        struct tda10071_reg_val_mask tab2[] = {
 773                { 0xf1, 0x70, 0xff },
 774                { 0x88, dev->pll_multiplier, 0x3f },
 775                { 0x89, 0x00, 0x10 },
 776                { 0x89, 0x10, 0x10 },
 777                { 0xc0, 0x01, 0x01 },
 778                { 0xc0, 0x00, 0x01 },
 779                { 0xe0, 0xff, 0xff },
 780                { 0xe0, 0x00, 0xff },
 781                { 0x96, 0x1e, 0x7e },
 782                { 0x8b, 0x08, 0x08 },
 783                { 0x8b, 0x00, 0x08 },
 784                { 0x8f, 0x1a, 0x7e },
 785                { 0x8c, 0x68, 0xff },
 786                { 0x8d, 0x08, 0xff },
 787                { 0x8e, 0x4c, 0xff },
 788                { 0x8f, 0x01, 0x01 },
 789                { 0x8b, 0x04, 0x04 },
 790                { 0x8b, 0x00, 0x04 },
 791                { 0x87, 0x05, 0x07 },
 792                { 0x80, 0x00, 0x20 },
 793                { 0xc8, 0x01, 0xff },
 794                { 0xb4, 0x47, 0xff },
 795                { 0xb5, 0x9c, 0xff },
 796                { 0xb6, 0x7d, 0xff },
 797                { 0xba, 0x00, 0x03 },
 798                { 0xb7, 0x47, 0xff },
 799                { 0xb8, 0x9c, 0xff },
 800                { 0xb9, 0x7d, 0xff },
 801                { 0xba, 0x00, 0x0c },
 802                { 0xc8, 0x00, 0xff },
 803                { 0xcd, 0x00, 0x04 },
 804                { 0xcd, 0x00, 0x20 },
 805                { 0xe8, 0x02, 0xff },
 806                { 0xcf, 0x20, 0xff },
 807                { 0x9b, 0xd7, 0xff },
 808                { 0x9a, 0x01, 0x03 },
 809                { 0xa8, 0x05, 0x0f },
 810                { 0xa8, 0x65, 0xf0 },
 811                { 0xa6, 0xa0, 0xf0 },
 812                { 0x9d, 0x50, 0xfc },
 813                { 0x9e, 0x20, 0xe0 },
 814                { 0xa3, 0x1c, 0x7c },
 815                { 0xd5, 0x03, 0x03 },
 816        };
 817
 818        if (dev->warm) {
 819                /* warm state - wake up device from sleep */
 820
 821                for (i = 0; i < ARRAY_SIZE(tab); i++) {
 822                        ret = tda10071_wr_reg_mask(dev, tab[i].reg,
 823                                tab[i].val, tab[i].mask);
 824                        if (ret)
 825                                goto error;
 826                }
 827
 828                cmd.args[0] = CMD_SET_SLEEP_MODE;
 829                cmd.args[1] = 0;
 830                cmd.args[2] = 0;
 831                cmd.len = 3;
 832                ret = tda10071_cmd_execute(dev, &cmd);
 833                if (ret)
 834                        goto error;
 835        } else {
 836                /* cold state - try to download firmware */
 837
 838                /* request the firmware, this will block and timeout */
 839                ret = request_firmware(&fw, fw_file, &client->dev);
 840                if (ret) {
 841                        dev_err(&client->dev,
 842                                "did not find the firmware file '%s' (status %d). You can use <kernel_dir>/scripts/get_dvb_firmware to get the firmware\n",
 843                                fw_file, ret);
 844                        goto error;
 845                }
 846
 847                /* init */
 848                for (i = 0; i < ARRAY_SIZE(tab2); i++) {
 849                        ret = tda10071_wr_reg_mask(dev, tab2[i].reg,
 850                                tab2[i].val, tab2[i].mask);
 851                        if (ret)
 852                                goto error_release_firmware;
 853                }
 854
 855                /*  download firmware */
 856                ret = regmap_write(dev->regmap, 0xe0, 0x7f);
 857                if (ret)
 858                        goto error_release_firmware;
 859
 860                ret = regmap_write(dev->regmap, 0xf7, 0x81);
 861                if (ret)
 862                        goto error_release_firmware;
 863
 864                ret = regmap_write(dev->regmap, 0xf8, 0x00);
 865                if (ret)
 866                        goto error_release_firmware;
 867
 868                ret = regmap_write(dev->regmap, 0xf9, 0x00);
 869                if (ret)
 870                        goto error_release_firmware;
 871
 872                dev_info(&client->dev,
 873                         "found a '%s' in cold state, will try to load a firmware\n",
 874                         tda10071_ops.info.name);
 875                dev_info(&client->dev, "downloading firmware from file '%s'\n",
 876                         fw_file);
 877
 878                /* do not download last byte */
 879                fw_size = fw->size - 1;
 880
 881                for (remaining = fw_size; remaining > 0;
 882                        remaining -= (dev->i2c_wr_max - 1)) {
 883                        len = remaining;
 884                        if (len > (dev->i2c_wr_max - 1))
 885                                len = (dev->i2c_wr_max - 1);
 886
 887                        ret = regmap_bulk_write(dev->regmap, 0xfa,
 888                                (u8 *) &fw->data[fw_size - remaining], len);
 889                        if (ret) {
 890                                dev_err(&client->dev,
 891                                        "firmware download failed=%d\n", ret);
 892                                goto error_release_firmware;
 893                        }
 894                }
 895                release_firmware(fw);
 896
 897                ret = regmap_write(dev->regmap, 0xf7, 0x0c);
 898                if (ret)
 899                        goto error;
 900
 901                ret = regmap_write(dev->regmap, 0xe0, 0x00);
 902                if (ret)
 903                        goto error;
 904
 905                /* wait firmware start */
 906                msleep(250);
 907
 908                /* firmware status */
 909                ret = regmap_read(dev->regmap, 0x51, &uitmp);
 910                if (ret)
 911                        goto error;
 912
 913                if (uitmp) {
 914                        dev_info(&client->dev, "firmware did not run\n");
 915                        ret = -EFAULT;
 916                        goto error;
 917                } else {
 918                        dev->warm = true;
 919                }
 920
 921                cmd.args[0] = CMD_GET_FW_VERSION;
 922                cmd.len = 1;
 923                ret = tda10071_cmd_execute(dev, &cmd);
 924                if (ret)
 925                        goto error;
 926
 927                ret = regmap_bulk_read(dev->regmap, cmd.len, buf, 4);
 928                if (ret)
 929                        goto error;
 930
 931                dev_info(&client->dev, "firmware version %d.%d.%d.%d\n",
 932                         buf[0], buf[1], buf[2], buf[3]);
 933                dev_info(&client->dev, "found a '%s' in warm state\n",
 934                         tda10071_ops.info.name);
 935
 936                ret = regmap_bulk_read(dev->regmap, 0x81, buf, 2);
 937                if (ret)
 938                        goto error;
 939
 940                cmd.args[0] = CMD_DEMOD_INIT;
 941                cmd.args[1] = ((dev->clk / 1000) >> 8) & 0xff;
 942                cmd.args[2] = ((dev->clk / 1000) >> 0) & 0xff;
 943                cmd.args[3] = buf[0];
 944                cmd.args[4] = buf[1];
 945                cmd.args[5] = dev->pll_multiplier;
 946                cmd.args[6] = dev->spec_inv;
 947                cmd.args[7] = 0x00;
 948                cmd.len = 8;
 949                ret = tda10071_cmd_execute(dev, &cmd);
 950                if (ret)
 951                        goto error;
 952
 953                if (dev->tuner_i2c_addr)
 954                        tmp = dev->tuner_i2c_addr;
 955                else
 956                        tmp = 0x14;
 957
 958                cmd.args[0] = CMD_TUNER_INIT;
 959                cmd.args[1] = 0x00;
 960                cmd.args[2] = 0x00;
 961                cmd.args[3] = 0x00;
 962                cmd.args[4] = 0x00;
 963                cmd.args[5] = tmp;
 964                cmd.args[6] = 0x00;
 965                cmd.args[7] = 0x03;
 966                cmd.args[8] = 0x02;
 967                cmd.args[9] = 0x02;
 968                cmd.args[10] = 0x00;
 969                cmd.args[11] = 0x00;
 970                cmd.args[12] = 0x00;
 971                cmd.args[13] = 0x00;
 972                cmd.args[14] = 0x00;
 973                cmd.len = 15;
 974                ret = tda10071_cmd_execute(dev, &cmd);
 975                if (ret)
 976                        goto error;
 977
 978                cmd.args[0] = CMD_MPEG_CONFIG;
 979                cmd.args[1] = 0;
 980                cmd.args[2] = dev->ts_mode;
 981                cmd.args[3] = 0x00;
 982                cmd.args[4] = 0x04;
 983                cmd.args[5] = 0x00;
 984                cmd.len = 6;
 985                ret = tda10071_cmd_execute(dev, &cmd);
 986                if (ret)
 987                        goto error;
 988
 989                ret = regmap_update_bits(dev->regmap, 0xf0, 0x01, 0x01);
 990                if (ret)
 991                        goto error;
 992
 993                cmd.args[0] = CMD_LNB_CONFIG;
 994                cmd.args[1] = 0;
 995                cmd.args[2] = 150;
 996                cmd.args[3] = 3;
 997                cmd.args[4] = 22;
 998                cmd.args[5] = 1;
 999                cmd.args[6] = 1;
1000                cmd.args[7] = 30;
1001                cmd.args[8] = 30;
1002                cmd.args[9] = 30;
1003                cmd.args[10] = 30;
1004                cmd.len = 11;
1005                ret = tda10071_cmd_execute(dev, &cmd);
1006                if (ret)
1007                        goto error;
1008
1009                cmd.args[0] = CMD_BER_CONTROL;
1010                cmd.args[1] = 0;
1011                cmd.args[2] = 14;
1012                cmd.args[3] = 14;
1013                cmd.len = 4;
1014                ret = tda10071_cmd_execute(dev, &cmd);
1015                if (ret)
1016                        goto error;
1017        }
1018
1019        /* init stats here in order signal app which stats are supported */
1020        c->strength.len = 1;
1021        c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
1022        c->cnr.len = 1;
1023        c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
1024        c->post_bit_error.len = 1;
1025        c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
1026        c->block_error.len = 1;
1027        c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
1028
1029        return ret;
1030error_release_firmware:
1031        release_firmware(fw);
1032error:
1033        dev_dbg(&client->dev, "failed=%d\n", ret);
1034        return ret;
1035}
1036
1037static int tda10071_sleep(struct dvb_frontend *fe)
1038{
1039        struct tda10071_dev *dev = fe->demodulator_priv;
1040        struct i2c_client *client = dev->client;
1041        struct tda10071_cmd cmd;
1042        int ret, i;
1043        struct tda10071_reg_val_mask tab[] = {
1044                { 0xcd, 0x07, 0x07 },
1045                { 0x80, 0x02, 0x02 },
1046                { 0xcd, 0xc0, 0xc0 },
1047                { 0xce, 0x1b, 0x1b },
1048                { 0x9d, 0x01, 0x01 },
1049                { 0x9d, 0x02, 0x02 },
1050                { 0x9e, 0x01, 0x01 },
1051                { 0x87, 0x80, 0x80 },
1052                { 0xce, 0x08, 0x08 },
1053                { 0xce, 0x10, 0x10 },
1054        };
1055
1056        if (!dev->warm) {
1057                ret = -EFAULT;
1058                goto error;
1059        }
1060
1061        cmd.args[0] = CMD_SET_SLEEP_MODE;
1062        cmd.args[1] = 0;
1063        cmd.args[2] = 1;
1064        cmd.len = 3;
1065        ret = tda10071_cmd_execute(dev, &cmd);
1066        if (ret)
1067                goto error;
1068
1069        for (i = 0; i < ARRAY_SIZE(tab); i++) {
1070                ret = tda10071_wr_reg_mask(dev, tab[i].reg, tab[i].val,
1071                        tab[i].mask);
1072                if (ret)
1073                        goto error;
1074        }
1075
1076        return ret;
1077error:
1078        dev_dbg(&client->dev, "failed=%d\n", ret);
1079        return ret;
1080}
1081
1082static int tda10071_get_tune_settings(struct dvb_frontend *fe,
1083        struct dvb_frontend_tune_settings *s)
1084{
1085        s->min_delay_ms = 8000;
1086        s->step_size = 0;
1087        s->max_drift = 0;
1088
1089        return 0;
1090}
1091
1092static const struct dvb_frontend_ops tda10071_ops = {
1093        .delsys = { SYS_DVBS, SYS_DVBS2 },
1094        .info = {
1095                .name = "NXP TDA10071",
1096                .frequency_min_hz    =  950 * MHz,
1097                .frequency_max_hz    = 2150 * MHz,
1098                .frequency_tolerance_hz = 5 * MHz,
1099                .symbol_rate_min = 1000000,
1100                .symbol_rate_max = 45000000,
1101                .caps = FE_CAN_INVERSION_AUTO |
1102                        FE_CAN_FEC_1_2 |
1103                        FE_CAN_FEC_2_3 |
1104                        FE_CAN_FEC_3_4 |
1105                        FE_CAN_FEC_4_5 |
1106                        FE_CAN_FEC_5_6 |
1107                        FE_CAN_FEC_6_7 |
1108                        FE_CAN_FEC_7_8 |
1109                        FE_CAN_FEC_8_9 |
1110                        FE_CAN_FEC_AUTO |
1111                        FE_CAN_QPSK |
1112                        FE_CAN_RECOVER |
1113                        FE_CAN_2G_MODULATION
1114        },
1115
1116        .get_tune_settings = tda10071_get_tune_settings,
1117
1118        .init = tda10071_init,
1119        .sleep = tda10071_sleep,
1120
1121        .set_frontend = tda10071_set_frontend,
1122        .get_frontend = tda10071_get_frontend,
1123
1124        .read_status = tda10071_read_status,
1125        .read_snr = tda10071_read_snr,
1126        .read_signal_strength = tda10071_read_signal_strength,
1127        .read_ber = tda10071_read_ber,
1128        .read_ucblocks = tda10071_read_ucblocks,
1129
1130        .diseqc_send_master_cmd = tda10071_diseqc_send_master_cmd,
1131        .diseqc_recv_slave_reply = tda10071_diseqc_recv_slave_reply,
1132        .diseqc_send_burst = tda10071_diseqc_send_burst,
1133
1134        .set_tone = tda10071_set_tone,
1135        .set_voltage = tda10071_set_voltage,
1136};
1137
1138static struct dvb_frontend *tda10071_get_dvb_frontend(struct i2c_client *client)
1139{
1140        struct tda10071_dev *dev = i2c_get_clientdata(client);
1141
1142        dev_dbg(&client->dev, "\n");
1143
1144        return &dev->fe;
1145}
1146
1147static int tda10071_probe(struct i2c_client *client,
1148                        const struct i2c_device_id *id)
1149{
1150        struct tda10071_dev *dev;
1151        struct tda10071_platform_data *pdata = client->dev.platform_data;
1152        int ret;
1153        unsigned int uitmp;
1154        static const struct regmap_config regmap_config = {
1155                .reg_bits = 8,
1156                .val_bits = 8,
1157        };
1158
1159        dev = kzalloc(sizeof(*dev), GFP_KERNEL);
1160        if (!dev) {
1161                ret = -ENOMEM;
1162                goto err;
1163        }
1164
1165        dev->client = client;
1166        mutex_init(&dev->cmd_execute_mutex);
1167        dev->clk = pdata->clk;
1168        dev->i2c_wr_max = pdata->i2c_wr_max;
1169        dev->ts_mode = pdata->ts_mode;
1170        dev->spec_inv = pdata->spec_inv;
1171        dev->pll_multiplier = pdata->pll_multiplier;
1172        dev->tuner_i2c_addr = pdata->tuner_i2c_addr;
1173        dev->regmap = devm_regmap_init_i2c(client, &regmap_config);
1174        if (IS_ERR(dev->regmap)) {
1175                ret = PTR_ERR(dev->regmap);
1176                goto err_kfree;
1177        }
1178
1179        /* chip ID */
1180        ret = regmap_read(dev->regmap, 0xff, &uitmp);
1181        if (ret)
1182                goto err_kfree;
1183        if (uitmp != 0x0f) {
1184                ret = -ENODEV;
1185                goto err_kfree;
1186        }
1187
1188        /* chip type */
1189        ret = regmap_read(dev->regmap, 0xdd, &uitmp);
1190        if (ret)
1191                goto err_kfree;
1192        if (uitmp != 0x00) {
1193                ret = -ENODEV;
1194                goto err_kfree;
1195        }
1196
1197        /* chip version */
1198        ret = regmap_read(dev->regmap, 0xfe, &uitmp);
1199        if (ret)
1200                goto err_kfree;
1201        if (uitmp != 0x01) {
1202                ret = -ENODEV;
1203                goto err_kfree;
1204        }
1205
1206        /* create dvb_frontend */
1207        memcpy(&dev->fe.ops, &tda10071_ops, sizeof(struct dvb_frontend_ops));
1208        dev->fe.demodulator_priv = dev;
1209        i2c_set_clientdata(client, dev);
1210
1211        /* setup callbacks */
1212        pdata->get_dvb_frontend = tda10071_get_dvb_frontend;
1213
1214        dev_info(&client->dev, "NXP TDA10071 successfully identified\n");
1215        return 0;
1216err_kfree:
1217        kfree(dev);
1218err:
1219        dev_dbg(&client->dev, "failed=%d\n", ret);
1220        return ret;
1221}
1222
1223static int tda10071_remove(struct i2c_client *client)
1224{
1225        struct tda10071_dev *dev = i2c_get_clientdata(client);
1226
1227        dev_dbg(&client->dev, "\n");
1228
1229        kfree(dev);
1230        return 0;
1231}
1232
1233static const struct i2c_device_id tda10071_id_table[] = {
1234        {"tda10071_cx24118", 0},
1235        {}
1236};
1237MODULE_DEVICE_TABLE(i2c, tda10071_id_table);
1238
1239static struct i2c_driver tda10071_driver = {
1240        .driver = {
1241                .name   = "tda10071",
1242                .suppress_bind_attrs = true,
1243        },
1244        .probe          = tda10071_probe,
1245        .remove         = tda10071_remove,
1246        .id_table       = tda10071_id_table,
1247};
1248
1249module_i2c_driver(tda10071_driver);
1250
1251MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1252MODULE_DESCRIPTION("NXP TDA10071 DVB-S/S2 demodulator driver");
1253MODULE_LICENSE("GPL");
1254MODULE_FIRMWARE(TDA10071_FIRMWARE);
1255