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.demod_i2c_addr,
  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.demod_i2c_addr,
  63                         .flags = 0,
  64                         .len = 1,
  65                         .buf = &reg,
  66                 }, {
  67                         .addr = priv->cfg.demod_i2c_addr,
  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 static int tda10071_wr_reg_mask(struct tda10071_priv *priv,
 100                                 u8 reg, u8 val, u8 mask)
 101 {
 102         int ret;
 103         u8 tmp;
 104
 105         /* no need for read if whole reg is written */
 106         if (mask != 0xff) {
 107                 ret = tda10071_rd_regs(priv, reg, &tmp, 1);
 108                 if (ret)
 109                         return ret;
 110
 111                 val &= mask;
 112                 tmp &= ~mask;
 113                 val |= tmp;
 114         }
 115
 116         return tda10071_wr_regs(priv, reg, &val, 1);
 117 }
 118
 119 /* read single register with mask */
 120 static int tda10071_rd_reg_mask(struct tda10071_priv *priv,
 121                                 u8 reg, u8 *val, u8 mask)
 122 {
 123         int ret, i;
 124         u8 tmp;
 125
 126         ret = tda10071_rd_regs(priv, reg, &tmp, 1);
 127         if (ret)
 128                 return ret;
 129
 130         tmp &= mask;
 131
 132         /* find position of the first bit */
 133         for (i = 0; i < 8; i++) {
 134                 if ((mask >> i) & 0x01)
 135                         break;
 136         }
 137         *val = tmp >> i;
 138
 139         return 0;
 140 }
 141
 142 /* execute firmware command */
 143 static int tda10071_cmd_execute(struct tda10071_priv *priv,
 144         struct tda10071_cmd *cmd)
 145 {
 146         int ret, i;
 147         u8 tmp;
 148
 149         if (!priv->warm) {
 150                 ret = -EFAULT;
 151                 goto error;
 152         }
 153
 154         /* write cmd and args for firmware */
 155         ret = tda10071_wr_regs(priv, 0x00, cmd->args, cmd->len);
 156         if (ret)
 157                 goto error;
 158
 159         /* start cmd execution */
 160         ret = tda10071_wr_reg(priv, 0x1f, 1);
 161         if (ret)
 162                 goto error;
 163
 164         /* wait cmd execution terminate */
 165         for (i = 1000, tmp = 1; i && tmp; i--) {
 166                 ret = tda10071_rd_reg(priv, 0x1f, &tmp);
 167                 if (ret)
 168                         goto error;
 169
 170                 usleep_range(200, 5000);
 171         }
 172
 173         dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
 174
 175         if (i == 0) {
 176                 ret = -ETIMEDOUT;
 177                 goto error;
 178         }
 179
 180         return ret;
 181 error:
 182         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 183         return ret;
 184 }
 185
 186 static int tda10071_set_tone(struct dvb_frontend *fe,
 187         fe_sec_tone_mode_t fe_sec_tone_mode)
 188 {
 189         struct tda10071_priv *priv = fe->demodulator_priv;
 190         struct tda10071_cmd cmd;
 191         int ret;
 192         u8 tone;
 193
 194         if (!priv->warm) {
 195                 ret = -EFAULT;
 196                 goto error;
 197         }
 198
 199         dev_dbg(&priv->i2c->dev, "%s: tone_mode=%d\n", __func__,
 200                         fe_sec_tone_mode);
 201
 202         switch (fe_sec_tone_mode) {
 203         case SEC_TONE_ON:
 204                 tone = 1;
 205                 break;
 206         case SEC_TONE_OFF:
 207                 tone = 0;
 208                 break;
 209         default:
 210                 dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_tone_mode\n",
 211                                 __func__);
 212                 ret = -EINVAL;
 213                 goto error;
 214         }
 215
 216         cmd.args[0] = CMD_LNB_PCB_CONFIG;
 217         cmd.args[1] = 0;
 218         cmd.args[2] = 0x00;
 219         cmd.args[3] = 0x00;
 220         cmd.args[4] = tone;
 221         cmd.len = 5;
 222         ret = tda10071_cmd_execute(priv, &cmd);
 223         if (ret)
 224                 goto error;
 225
 226         return ret;
 227 error:
 228         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 229         return ret;
 230 }
 231
 232 static int tda10071_set_voltage(struct dvb_frontend *fe,
 233         fe_sec_voltage_t fe_sec_voltage)
 234 {
 235         struct tda10071_priv *priv = fe->demodulator_priv;
 236         struct tda10071_cmd cmd;
 237         int ret;
 238         u8 voltage;
 239
 240         if (!priv->warm) {
 241                 ret = -EFAULT;
 242                 goto error;
 243         }
 244
 245         dev_dbg(&priv->i2c->dev, "%s: voltage=%d\n", __func__, fe_sec_voltage);
 246
 247         switch (fe_sec_voltage) {
 248         case SEC_VOLTAGE_13:
 249                 voltage = 0;
 250                 break;
 251         case SEC_VOLTAGE_18:
 252                 voltage = 1;
 253                 break;
 254         case SEC_VOLTAGE_OFF:
 255                 voltage = 0;
 256                 break;
 257         default:
 258                 dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_voltage\n",
 259                                 __func__);
 260                 ret = -EINVAL;
 261                 goto error;
 262         }
 263
 264         cmd.args[0] = CMD_LNB_SET_DC_LEVEL;
 265         cmd.args[1] = 0;
 266         cmd.args[2] = voltage;
 267         cmd.len = 3;
 268         ret = tda10071_cmd_execute(priv, &cmd);
 269         if (ret)
 270                 goto error;
 271
 272         return ret;
 273 error:
 274         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 275         return ret;
 276 }
 277
 278 static int tda10071_diseqc_send_master_cmd(struct dvb_frontend *fe,
 279         struct dvb_diseqc_master_cmd *diseqc_cmd)
 280 {
 281         struct tda10071_priv *priv = fe->demodulator_priv;
 282         struct tda10071_cmd cmd;
 283         int ret, i;
 284         u8 tmp;
 285
 286         if (!priv->warm) {
 287                 ret = -EFAULT;
 288                 goto error;
 289         }
 290
 291         dev_dbg(&priv->i2c->dev, "%s: msg_len=%d\n", __func__,
 292                         diseqc_cmd->msg_len);
 293
 294         if (diseqc_cmd->msg_len < 3 || diseqc_cmd->msg_len > 6) {
 295                 ret = -EINVAL;
 296                 goto error;
 297         }
 298
 299         /* wait LNB TX */
 300         for (i = 500, tmp = 0; i && !tmp; i--) {
 301                 ret = tda10071_rd_reg_mask(priv, 0x47, &tmp, 0x01);
 302                 if (ret)
 303                         goto error;
 304
 305                 usleep_range(10000, 20000);
 306         }
 307
 308         dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
 309
 310         if (i == 0) {
 311                 ret = -ETIMEDOUT;
 312                 goto error;
 313         }
 314
 315         ret = tda10071_wr_reg_mask(priv, 0x47, 0x00, 0x01);
 316         if (ret)
 317                 goto error;
 318
 319         cmd.args[0] = CMD_LNB_SEND_DISEQC;
 320         cmd.args[1] = 0;
 321         cmd.args[2] = 0;
 322         cmd.args[3] = 0;
 323         cmd.args[4] = 2;
 324         cmd.args[5] = 0;
 325         cmd.args[6] = diseqc_cmd->msg_len;
 326         memcpy(&cmd.args[7], diseqc_cmd->msg, diseqc_cmd->msg_len);
 327         cmd.len = 7 + diseqc_cmd->msg_len;
 328         ret = tda10071_cmd_execute(priv, &cmd);
 329         if (ret)
 330                 goto error;
 331
 332         return ret;
 333 error:
 334         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 335         return ret;
 336 }
 337
 338 static int tda10071_diseqc_recv_slave_reply(struct dvb_frontend *fe,
 339         struct dvb_diseqc_slave_reply *reply)
 340 {
 341         struct tda10071_priv *priv = fe->demodulator_priv;
 342         struct tda10071_cmd cmd;
 343         int ret, i;
 344         u8 tmp;
 345
 346         if (!priv->warm) {
 347                 ret = -EFAULT;
 348                 goto error;
 349         }
 350
 351         dev_dbg(&priv->i2c->dev, "%s:\n", __func__);
 352
 353         /* wait LNB RX */
 354         for (i = 500, tmp = 0; i && !tmp; i--) {
 355                 ret = tda10071_rd_reg_mask(priv, 0x47, &tmp, 0x02);
 356                 if (ret)
 357                         goto error;
 358
 359                 usleep_range(10000, 20000);
 360         }
 361
 362         dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
 363
 364         if (i == 0) {
 365                 ret = -ETIMEDOUT;
 366                 goto error;
 367         }
 368
 369         /* reply len */
 370         ret = tda10071_rd_reg(priv, 0x46, &tmp);
 371         if (ret)
 372                 goto error;
 373
 374         reply->msg_len = tmp & 0x1f; /* [4:0] */
 375         if (reply->msg_len > sizeof(reply->msg))
 376                 reply->msg_len = sizeof(reply->msg); /* truncate API max */
 377
 378         /* read reply */
 379         cmd.args[0] = CMD_LNB_UPDATE_REPLY;
 380         cmd.args[1] = 0;
 381         cmd.len = 2;
 382         ret = tda10071_cmd_execute(priv, &cmd);
 383         if (ret)
 384                 goto error;
 385
 386         ret = tda10071_rd_regs(priv, cmd.len, reply->msg, reply->msg_len);
 387         if (ret)
 388                 goto error;
 389
 390         return ret;
 391 error:
 392         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 393         return ret;
 394 }
 395
 396 static int tda10071_diseqc_send_burst(struct dvb_frontend *fe,
 397         fe_sec_mini_cmd_t fe_sec_mini_cmd)
 398 {
 399         struct tda10071_priv *priv = fe->demodulator_priv;
 400         struct tda10071_cmd cmd;
 401         int ret, i;
 402         u8 tmp, burst;
 403
 404         if (!priv->warm) {
 405                 ret = -EFAULT;
 406                 goto error;
 407         }
 408
 409         dev_dbg(&priv->i2c->dev, "%s: fe_sec_mini_cmd=%d\n", __func__,
 410                         fe_sec_mini_cmd);
 411
 412         switch (fe_sec_mini_cmd) {
 413         case SEC_MINI_A:
 414                 burst = 0;
 415                 break;
 416         case SEC_MINI_B:
 417                 burst = 1;
 418                 break;
 419         default:
 420                 dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_mini_cmd\n",
 421                                 __func__);
 422                 ret = -EINVAL;
 423                 goto error;
 424         }
 425
 426         /* wait LNB TX */
 427         for (i = 500, tmp = 0; i && !tmp; i--) {
 428                 ret = tda10071_rd_reg_mask(priv, 0x47, &tmp, 0x01);
 429                 if (ret)
 430                         goto error;
 431
 432                 usleep_range(10000, 20000);
 433         }
 434
 435         dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
 436
 437         if (i == 0) {
 438                 ret = -ETIMEDOUT;
 439                 goto error;
 440         }
 441
 442         ret = tda10071_wr_reg_mask(priv, 0x47, 0x00, 0x01);
 443         if (ret)
 444                 goto error;
 445
 446         cmd.args[0] = CMD_LNB_SEND_TONEBURST;
 447         cmd.args[1] = 0;
 448         cmd.args[2] = burst;
 449         cmd.len = 3;
 450         ret = tda10071_cmd_execute(priv, &cmd);
 451         if (ret)
 452                 goto error;
 453
 454         return ret;
 455 error:
 456         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 457         return ret;
 458 }
 459
 460 static int tda10071_read_status(struct dvb_frontend *fe, fe_status_t *status)
 461 {
 462         struct tda10071_priv *priv = fe->demodulator_priv;
 463         int ret;
 464         u8 tmp;
 465
 466         *status = 0;
 467
 468         if (!priv->warm) {
 469                 ret = 0;
 470                 goto error;
 471         }
 472
 473         ret = tda10071_rd_reg(priv, 0x39, &tmp);
 474         if (ret)
 475                 goto error;
 476
 477         if (tmp & 0x01) /* tuner PLL */
 478                 *status |= FE_HAS_SIGNAL;
 479         if (tmp & 0x02) /* demod PLL */
 480                 *status |= FE_HAS_CARRIER;
 481         if (tmp & 0x04) /* viterbi or LDPC*/
 482                 *status |= FE_HAS_VITERBI;
 483         if (tmp & 0x08) /* RS or BCH */
 484                 *status |= FE_HAS_SYNC | FE_HAS_LOCK;
 485
 486         priv->fe_status = *status;
 487
 488         return ret;
 489 error:
 490         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 491         return ret;
 492 }
 493
 494 static int tda10071_read_snr(struct dvb_frontend *fe, u16 *snr)
 495 {
 496         struct tda10071_priv *priv = fe->demodulator_priv;
 497         int ret;
 498         u8 buf[2];
 499
 500         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
 501                 *snr = 0;
 502                 ret = 0;
 503                 goto error;
 504         }
 505
 506         ret = tda10071_rd_regs(priv, 0x3a, buf, 2);
 507         if (ret)
 508                 goto error;
 509
 510         /* Es/No dBx10 */
 511         *snr = buf[0] << 8 | buf[1];
 512
 513         return ret;
 514 error:
 515         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 516         return ret;
 517 }
 518
 519 static int tda10071_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
 520 {
 521         struct tda10071_priv *priv = fe->demodulator_priv;
 522         struct tda10071_cmd cmd;
 523         int ret;
 524         u8 tmp;
 525
 526         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
 527                 *strength = 0;
 528                 ret = 0;
 529                 goto error;
 530         }
 531
 532         cmd.args[0] = CMD_GET_AGCACC;
 533         cmd.args[1] = 0;
 534         cmd.len = 2;
 535         ret = tda10071_cmd_execute(priv, &cmd);
 536         if (ret)
 537                 goto error;
 538
 539         /* input power estimate dBm */
 540         ret = tda10071_rd_reg(priv, 0x50, &tmp);
 541         if (ret)
 542                 goto error;
 543
 544         if (tmp < 181)
 545                 tmp = 181; /* -75 dBm */
 546         else if (tmp > 236)
 547                 tmp = 236; /* -20 dBm */
 548
 549         /* scale value to 0x0000-0xffff */
 550         *strength = (tmp-181) * 0xffff / (236-181);
 551
 552         return ret;
 553 error:
 554         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 555         return ret;
 556 }
 557
 558 static int tda10071_read_ber(struct dvb_frontend *fe, u32 *ber)
 559 {
 560         struct tda10071_priv *priv = fe->demodulator_priv;
 561         struct tda10071_cmd cmd;
 562         int ret, i, len;
 563         u8 tmp, reg, buf[8];
 564
 565         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
 566                 *ber = priv->ber = 0;
 567                 ret = 0;
 568                 goto error;
 569         }
 570
 571         switch (priv->delivery_system) {
 572         case SYS_DVBS:
 573                 reg = 0x4c;
 574                 len = 8;
 575                 i = 1;
 576                 break;
 577         case SYS_DVBS2:
 578                 reg = 0x4d;
 579                 len = 4;
 580                 i = 0;
 581                 break;
 582         default:
 583                 *ber = priv->ber = 0;
 584                 return 0;
 585         }
 586
 587         ret = tda10071_rd_reg(priv, reg, &tmp);
 588         if (ret)
 589                 goto error;
 590
 591         if (priv->meas_count[i] == tmp) {
 592                 dev_dbg(&priv->i2c->dev, "%s: meas not ready=%02x\n", __func__,
 593                                 tmp);
 594                 *ber = priv->ber;
 595                 return 0;
 596         } else {
 597                 priv->meas_count[i] = tmp;
 598         }
 599
 600         cmd.args[0] = CMD_BER_UPDATE_COUNTERS;
 601         cmd.args[1] = 0;
 602         cmd.args[2] = i;
 603         cmd.len = 3;
 604         ret = tda10071_cmd_execute(priv, &cmd);
 605         if (ret)
 606                 goto error;
 607
 608         ret = tda10071_rd_regs(priv, cmd.len, buf, len);
 609         if (ret)
 610                 goto error;
 611
 612         if (priv->delivery_system == SYS_DVBS) {
 613                 *ber = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
 614                 priv->ucb += (buf[4] << 8) | buf[5];
 615         } else {
 616                 *ber = (buf[0] << 8) | buf[1];
 617         }
 618         priv->ber = *ber;
 619
 620         return ret;
 621 error:
 622         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 623         return ret;
 624 }
 625
 626 static int tda10071_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
 627 {
 628         struct tda10071_priv *priv = fe->demodulator_priv;
 629         int ret = 0;
 630
 631         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
 632                 *ucblocks = 0;
 633                 goto error;
 634         }
 635
 636         /* UCB is updated when BER is read. Assume BER is read anyway. */
 637
 638         *ucblocks = priv->ucb;
 639
 640         return ret;
 641 error:
 642         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 643         return ret;
 644 }
 645
 646 static int tda10071_set_frontend(struct dvb_frontend *fe)
 647 {
 648         struct tda10071_priv *priv = fe->demodulator_priv;
 649         struct tda10071_cmd cmd;
 650         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 651         int ret, i;
 652         u8 mode, rolloff, pilot, inversion, div;
 653
 654         dev_dbg(&priv->i2c->dev, "%s: delivery_system=%d modulation=%d " \
 655                 "frequency=%d symbol_rate=%d inversion=%d pilot=%d " \
 656                 "rolloff=%d\n", __func__, c->delivery_system, c->modulation,
 657                 c->frequency, c->symbol_rate, c->inversion, c->pilot,
 658                 c->rolloff);
 659
 660         priv->delivery_system = SYS_UNDEFINED;
 661
 662         if (!priv->warm) {
 663                 ret = -EFAULT;
 664                 goto error;
 665         }
 666
 667         switch (c->inversion) {
 668         case INVERSION_OFF:
 669                 inversion = 1;
 670                 break;
 671         case INVERSION_ON:
 672                 inversion = 0;
 673                 break;
 674         case INVERSION_AUTO:
 675                 /* 2 = auto; try first on then off
 676                  * 3 = auto; try first off then on */
 677                 inversion = 3;
 678                 break;
 679         default:
 680                 dev_dbg(&priv->i2c->dev, "%s: invalid inversion\n", __func__);
 681                 ret = -EINVAL;
 682                 goto error;
 683         }
 684
 685         switch (c->delivery_system) {
 686         case SYS_DVBS:
 687                 rolloff = 0;
 688                 pilot = 2;
 689                 break;
 690         case SYS_DVBS2:
 691                 switch (c->rolloff) {
 692                 case ROLLOFF_20:
 693                         rolloff = 2;
 694                         break;
 695                 case ROLLOFF_25:
 696                         rolloff = 1;
 697                         break;
 698                 case ROLLOFF_35:
 699                         rolloff = 0;
 700                         break;
 701                 case ROLLOFF_AUTO:
 702                 default:
 703                         dev_dbg(&priv->i2c->dev, "%s: invalid rolloff\n",
 704                                         __func__);
 705                         ret = -EINVAL;
 706                         goto error;
 707                 }
 708
 709                 switch (c->pilot) {
 710                 case PILOT_OFF:
 711                         pilot = 0;
 712                         break;
 713                 case PILOT_ON:
 714                         pilot = 1;
 715                         break;
 716                 case PILOT_AUTO:
 717                         pilot = 2;
 718                         break;
 719                 default:
 720                         dev_dbg(&priv->i2c->dev, "%s: invalid pilot\n",
 721                                         __func__);
 722                         ret = -EINVAL;
 723                         goto error;
 724                 }
 725                 break;
 726         default:
 727                 dev_dbg(&priv->i2c->dev, "%s: invalid delivery_system\n",
 728                                 __func__);
 729                 ret = -EINVAL;
 730                 goto error;
 731         }
 732
 733         for (i = 0, mode = 0xff; i < ARRAY_SIZE(TDA10071_MODCOD); i++) {
 734                 if (c->delivery_system == TDA10071_MODCOD[i].delivery_system &&
 735                         c->modulation == TDA10071_MODCOD[i].modulation &&
 736                         c->fec_inner == TDA10071_MODCOD[i].fec) {
 737                         mode = TDA10071_MODCOD[i].val;
 738                         dev_dbg(&priv->i2c->dev, "%s: mode found=%02x\n",
 739                                         __func__, mode);
 740                         break;
 741                 }
 742         }
 743
 744         if (mode == 0xff) {
 745                 dev_dbg(&priv->i2c->dev, "%s: invalid parameter combination\n",
 746                                 __func__);
 747                 ret = -EINVAL;
 748                 goto error;
 749         }
 750
 751         if (c->symbol_rate <= 5000000)
 752                 div = 14;
 753         else
 754                 div = 4;
 755
 756         ret = tda10071_wr_reg(priv, 0x81, div);
 757         if (ret)
 758                 goto error;
 759
 760         ret = tda10071_wr_reg(priv, 0xe3, div);
 761         if (ret)
 762                 goto error;
 763
 764         cmd.args[0] = CMD_CHANGE_CHANNEL;
 765         cmd.args[1] = 0;
 766         cmd.args[2] = mode;
 767         cmd.args[3] = (c->frequency >> 16) & 0xff;
 768         cmd.args[4] = (c->frequency >>  8) & 0xff;
 769         cmd.args[5] = (c->frequency >>  0) & 0xff;
 770         cmd.args[6] = ((c->symbol_rate / 1000) >> 8) & 0xff;
 771         cmd.args[7] = ((c->symbol_rate / 1000) >> 0) & 0xff;
 772         cmd.args[8] = (tda10071_ops.info.frequency_tolerance >> 8) & 0xff;
 773         cmd.args[9] = (tda10071_ops.info.frequency_tolerance >> 0) & 0xff;
 774         cmd.args[10] = rolloff;
 775         cmd.args[11] = inversion;
 776         cmd.args[12] = pilot;
 777         cmd.args[13] = 0x00;
 778         cmd.args[14] = 0x00;
 779         cmd.len = 15;
 780         ret = tda10071_cmd_execute(priv, &cmd);
 781         if (ret)
 782                 goto error;
 783
 784         priv->delivery_system = c->delivery_system;
 785
 786         return ret;
 787 error:
 788         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 789         return ret;
 790 }
 791
 792 static int tda10071_get_frontend(struct dvb_frontend *fe)
 793 {
 794         struct tda10071_priv *priv = fe->demodulator_priv;
 795         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 796         int ret, i;
 797         u8 buf[5], tmp;
 798
 799         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
 800                 ret = -EFAULT;
 801                 goto error;
 802         }
 803
 804         ret = tda10071_rd_regs(priv, 0x30, buf, 5);
 805         if (ret)
 806                 goto error;
 807
 808         tmp = buf[0] & 0x3f;
 809         for (i = 0; i < ARRAY_SIZE(TDA10071_MODCOD); i++) {
 810                 if (tmp == TDA10071_MODCOD[i].val) {
 811                         c->modulation = TDA10071_MODCOD[i].modulation;
 812                         c->fec_inner = TDA10071_MODCOD[i].fec;
 813                         c->delivery_system = TDA10071_MODCOD[i].delivery_system;
 814                 }
 815         }
 816
 817         switch ((buf[1] >> 0) & 0x01) {
 818         case 0:
 819                 c->inversion = INVERSION_OFF;
 820                 break;
 821         case 1:
 822                 c->inversion = INVERSION_ON;
 823                 break;
 824         }
 825
 826         switch ((buf[1] >> 7) & 0x01) {
 827         case 0:
 828                 c->pilot = PILOT_OFF;
 829                 break;
 830         case 1:
 831                 c->pilot = PILOT_ON;
 832                 break;
 833         }
 834
 835         c->frequency = (buf[2] << 16) | (buf[3] << 8) | (buf[4] << 0);
 836
 837         ret = tda10071_rd_regs(priv, 0x52, buf, 3);
 838         if (ret)
 839                 goto error;
 840
 841         c->symbol_rate = (buf[0] << 16) | (buf[1] << 8) | (buf[2] << 0);
 842
 843         return ret;
 844 error:
 845         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 846         return ret;
 847 }
 848
 849 static int tda10071_init(struct dvb_frontend *fe)
 850 {
 851         struct tda10071_priv *priv = fe->demodulator_priv;
 852         struct tda10071_cmd cmd;
 853         int ret, i, len, remaining, fw_size;
 854         const struct firmware *fw;
 855         u8 *fw_file = TDA10071_FIRMWARE;
 856         u8 tmp, buf[4];
 857         struct tda10071_reg_val_mask tab[] = {
 858                 { 0xcd, 0x00, 0x07 },
 859                 { 0x80, 0x00, 0x02 },
 860                 { 0xcd, 0x00, 0xc0 },
 861                 { 0xce, 0x00, 0x1b },
 862                 { 0x9d, 0x00, 0x01 },
 863                 { 0x9d, 0x00, 0x02 },
 864                 { 0x9e, 0x00, 0x01 },
 865                 { 0x87, 0x00, 0x80 },
 866                 { 0xce, 0x00, 0x08 },
 867                 { 0xce, 0x00, 0x10 },
 868         };
 869         struct tda10071_reg_val_mask tab2[] = {
 870                 { 0xf1, 0x70, 0xff },
 871                 { 0x88, priv->cfg.pll_multiplier, 0x3f },
 872                 { 0x89, 0x00, 0x10 },
 873                 { 0x89, 0x10, 0x10 },
 874                 { 0xc0, 0x01, 0x01 },
 875                 { 0xc0, 0x00, 0x01 },
 876                 { 0xe0, 0xff, 0xff },
 877                 { 0xe0, 0x00, 0xff },
 878                 { 0x96, 0x1e, 0x7e },
 879                 { 0x8b, 0x08, 0x08 },
 880                 { 0x8b, 0x00, 0x08 },
 881                 { 0x8f, 0x1a, 0x7e },
 882                 { 0x8c, 0x68, 0xff },
 883                 { 0x8d, 0x08, 0xff },
 884                 { 0x8e, 0x4c, 0xff },
 885                 { 0x8f, 0x01, 0x01 },
 886                 { 0x8b, 0x04, 0x04 },
 887                 { 0x8b, 0x00, 0x04 },
 888                 { 0x87, 0x05, 0x07 },
 889                 { 0x80, 0x00, 0x20 },
 890                 { 0xc8, 0x01, 0xff },
 891                 { 0xb4, 0x47, 0xff },
 892                 { 0xb5, 0x9c, 0xff },
 893                 { 0xb6, 0x7d, 0xff },
 894                 { 0xba, 0x00, 0x03 },
 895                 { 0xb7, 0x47, 0xff },
 896                 { 0xb8, 0x9c, 0xff },
 897                 { 0xb9, 0x7d, 0xff },
 898                 { 0xba, 0x00, 0x0c },
 899                 { 0xc8, 0x00, 0xff },
 900                 { 0xcd, 0x00, 0x04 },
 901                 { 0xcd, 0x00, 0x20 },
 902                 { 0xe8, 0x02, 0xff },
 903                 { 0xcf, 0x20, 0xff },
 904                 { 0x9b, 0xd7, 0xff },
 905                 { 0x9a, 0x01, 0x03 },
 906                 { 0xa8, 0x05, 0x0f },
 907                 { 0xa8, 0x65, 0xf0 },
 908                 { 0xa6, 0xa0, 0xf0 },
 909                 { 0x9d, 0x50, 0xfc },
 910                 { 0x9e, 0x20, 0xe0 },
 911                 { 0xa3, 0x1c, 0x7c },
 912                 { 0xd5, 0x03, 0x03 },
 913         };
 914
 915         if (priv->warm) {
 916                 /* warm state - wake up device from sleep */
 917
 918                 for (i = 0; i < ARRAY_SIZE(tab); i++) {
 919                         ret = tda10071_wr_reg_mask(priv, tab[i].reg,
 920                                 tab[i].val, tab[i].mask);
 921                         if (ret)
 922                                 goto error;
 923                 }
 924
 925                 cmd.args[0] = CMD_SET_SLEEP_MODE;
 926                 cmd.args[1] = 0;
 927                 cmd.args[2] = 0;
 928                 cmd.len = 3;
 929                 ret = tda10071_cmd_execute(priv, &cmd);
 930                 if (ret)
 931                         goto error;
 932         } else {
 933                 /* cold state - try to download firmware */
 934
 935                 /* request the firmware, this will block and timeout */
 936                 ret = request_firmware(&fw, fw_file, priv->i2c->dev.parent);
 937                 if (ret) {
 938                         dev_err(&priv->i2c->dev, "%s: did not find the " \
 939                                         "firmware file. (%s) Please see " \
 940                                         "linux/Documentation/dvb/ for more " \
 941                                         "details on firmware-problems. (%d)\n",
 942                                         KBUILD_MODNAME, fw_file, ret);
 943                         goto error;
 944                 }
 945
 946                 /* init */
 947                 for (i = 0; i < ARRAY_SIZE(tab2); i++) {
 948                         ret = tda10071_wr_reg_mask(priv, tab2[i].reg,
 949                                 tab2[i].val, tab2[i].mask);
 950                         if (ret)
 951                                 goto error_release_firmware;
 952                 }
 953
 954                 /*  download firmware */
 955                 ret = tda10071_wr_reg(priv, 0xe0, 0x7f);
 956                 if (ret)
 957                         goto error_release_firmware;
 958
 959                 ret = tda10071_wr_reg(priv, 0xf7, 0x81);
 960                 if (ret)
 961                         goto error_release_firmware;
 962
 963                 ret = tda10071_wr_reg(priv, 0xf8, 0x00);
 964                 if (ret)
 965                         goto error_release_firmware;
 966
 967                 ret = tda10071_wr_reg(priv, 0xf9, 0x00);
 968                 if (ret)
 969                         goto error_release_firmware;
 970
 971                 dev_info(&priv->i2c->dev, "%s: found a '%s' in cold state, " \
 972                                 "will try to load a firmware\n", KBUILD_MODNAME,
 973                                 tda10071_ops.info.name);
 974                 dev_info(&priv->i2c->dev, "%s: downloading firmware from " \
 975                                 "file '%s'\n", KBUILD_MODNAME, fw_file);
 976
 977                 /* do not download last byte */
 978                 fw_size = fw->size - 1;
 979
 980                 for (remaining = fw_size; remaining > 0;
 981                         remaining -= (priv->cfg.i2c_wr_max - 1)) {
 982                         len = remaining;
 983                         if (len > (priv->cfg.i2c_wr_max - 1))
 984                                 len = (priv->cfg.i2c_wr_max - 1);
 985
 986                         ret = tda10071_wr_regs(priv, 0xfa,
 987                                 (u8 *) &fw->data[fw_size - remaining], len);
 988                         if (ret) {
 989                                 dev_err(&priv->i2c->dev, "%s: firmware " \
 990                                                 "download failed=%d\n",
 991                                                 KBUILD_MODNAME, ret);
 992                                 if (ret)
 993                                         goto error_release_firmware;
 994                         }
 995                 }
 996                 release_firmware(fw);
 997
 998                 ret = tda10071_wr_reg(priv, 0xf7, 0x0c);
 999                 if (ret)
1000                         goto error;
1001
1002                 ret = tda10071_wr_reg(priv, 0xe0, 0x00);
1003                 if (ret)
1004                         goto error;
1005
1006                 /* wait firmware start */
1007                 msleep(250);
1008
1009                 /* firmware status */
1010                 ret = tda10071_rd_reg(priv, 0x51, &tmp);
1011                 if (ret)
1012                         goto error;
1013
1014                 if (tmp) {
1015                         dev_info(&priv->i2c->dev, "%s: firmware did not run\n",
1016                                         KBUILD_MODNAME);
1017                         ret = -EFAULT;
1018                         goto error;
1019                 } else {
1020                         priv->warm = 1;
1021                 }
1022
1023                 cmd.args[0] = CMD_GET_FW_VERSION;
1024                 cmd.len = 1;
1025                 ret = tda10071_cmd_execute(priv, &cmd);
1026                 if (ret)
1027                         goto error;
1028
1029                 ret = tda10071_rd_regs(priv, cmd.len, buf, 4);
1030                 if (ret)
1031                         goto error;
1032
1033                 dev_info(&priv->i2c->dev, "%s: firmware version %d.%d.%d.%d\n",
1034                                 KBUILD_MODNAME, buf[0], buf[1], buf[2], buf[3]);
1035                 dev_info(&priv->i2c->dev, "%s: found a '%s' in warm state\n",
1036                                 KBUILD_MODNAME, tda10071_ops.info.name);
1037
1038                 ret = tda10071_rd_regs(priv, 0x81, buf, 2);
1039                 if (ret)
1040                         goto error;
1041
1042                 cmd.args[0] = CMD_DEMOD_INIT;
1043                 cmd.args[1] = ((priv->cfg.xtal / 1000) >> 8) & 0xff;
1044                 cmd.args[2] = ((priv->cfg.xtal / 1000) >> 0) & 0xff;
1045                 cmd.args[3] = buf[0];
1046                 cmd.args[4] = buf[1];
1047                 cmd.args[5] = priv->cfg.pll_multiplier;
1048                 cmd.args[6] = priv->cfg.spec_inv;
1049                 cmd.args[7] = 0x00;
1050                 cmd.len = 8;
1051                 ret = tda10071_cmd_execute(priv, &cmd);
1052                 if (ret)
1053                         goto error;
1054
1055                 cmd.args[0] = CMD_TUNER_INIT;
1056                 cmd.args[1] = 0x00;
1057                 cmd.args[2] = 0x00;
1058                 cmd.args[3] = 0x00;
1059                 cmd.args[4] = 0x00;
1060                 cmd.args[5] = (priv->cfg.tuner_i2c_addr) ? priv->cfg.tuner_i2c_addr : 0x14;
1061                 cmd.args[6] = 0x00;
1062                 cmd.args[7] = 0x03;
1063                 cmd.args[8] = 0x02;
1064                 cmd.args[9] = 0x02;
1065                 cmd.args[10] = 0x00;
1066                 cmd.args[11] = 0x00;
1067                 cmd.args[12] = 0x00;
1068                 cmd.args[13] = 0x00;
1069                 cmd.args[14] = 0x00;
1070                 cmd.len = 15;
1071                 ret = tda10071_cmd_execute(priv, &cmd);
1072                 if (ret)
1073                         goto error;
1074
1075                 cmd.args[0] = CMD_MPEG_CONFIG;
1076                 cmd.args[1] = 0;
1077                 cmd.args[2] = priv->cfg.ts_mode;
1078                 cmd.args[3] = 0x00;
1079                 cmd.args[4] = 0x04;
1080                 cmd.args[5] = 0x00;
1081                 cmd.len = 6;
1082                 ret = tda10071_cmd_execute(priv, &cmd);
1083                 if (ret)
1084                         goto error;
1085
1086                 ret = tda10071_wr_reg_mask(priv, 0xf0, 0x01, 0x01);
1087                 if (ret)
1088                         goto error;
1089
1090                 cmd.args[0] = CMD_LNB_CONFIG;
1091                 cmd.args[1] = 0;
1092                 cmd.args[2] = 150;
1093                 cmd.args[3] = 3;
1094                 cmd.args[4] = 22;
1095                 cmd.args[5] = 1;
1096                 cmd.args[6] = 1;
1097                 cmd.args[7] = 30;
1098                 cmd.args[8] = 30;
1099                 cmd.args[9] = 30;
1100                 cmd.args[10] = 30;
1101                 cmd.len = 11;
1102                 ret = tda10071_cmd_execute(priv, &cmd);
1103                 if (ret)
1104                         goto error;
1105
1106                 cmd.args[0] = CMD_BER_CONTROL;
1107                 cmd.args[1] = 0;
1108                 cmd.args[2] = 14;
1109                 cmd.args[3] = 14;
1110                 cmd.len = 4;
1111                 ret = tda10071_cmd_execute(priv, &cmd);
1112                 if (ret)
1113                         goto error;
1114         }
1115
1116         return ret;
1117 error_release_firmware:
1118         release_firmware(fw);
1119 error:
1120         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
1121         return ret;
1122 }
1123
1124 static int tda10071_sleep(struct dvb_frontend *fe)
1125 {
1126         struct tda10071_priv *priv = fe->demodulator_priv;
1127         struct tda10071_cmd cmd;
1128         int ret, i;
1129         struct tda10071_reg_val_mask tab[] = {
1130                 { 0xcd, 0x07, 0x07 },
1131                 { 0x80, 0x02, 0x02 },
1132                 { 0xcd, 0xc0, 0xc0 },
1133                 { 0xce, 0x1b, 0x1b },
1134                 { 0x9d, 0x01, 0x01 },
1135                 { 0x9d, 0x02, 0x02 },
1136                 { 0x9e, 0x01, 0x01 },
1137                 { 0x87, 0x80, 0x80 },
1138                 { 0xce, 0x08, 0x08 },
1139                 { 0xce, 0x10, 0x10 },
1140         };
1141
1142         if (!priv->warm) {
1143                 ret = -EFAULT;
1144                 goto error;
1145         }
1146
1147         cmd.args[0] = CMD_SET_SLEEP_MODE;
1148         cmd.args[1] = 0;
1149         cmd.args[2] = 1;
1150         cmd.len = 3;
1151         ret = tda10071_cmd_execute(priv, &cmd);
1152         if (ret)
1153                 goto error;
1154
1155         for (i = 0; i < ARRAY_SIZE(tab); i++) {
1156                 ret = tda10071_wr_reg_mask(priv, tab[i].reg, tab[i].val,
1157                         tab[i].mask);
1158                 if (ret)
1159                         goto error;
1160         }
1161
1162         return ret;
1163 error:
1164         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
1165         return ret;
1166 }
1167
1168 static int tda10071_get_tune_settings(struct dvb_frontend *fe,
1169         struct dvb_frontend_tune_settings *s)
1170 {
1171         s->min_delay_ms = 8000;
1172         s->step_size = 0;
1173         s->max_drift = 0;
1174
1175         return 0;
1176 }
1177
1178 static void tda10071_release(struct dvb_frontend *fe)
1179 {
1180         struct tda10071_priv *priv = fe->demodulator_priv;
1181         kfree(priv);
1182 }
1183
1184 struct dvb_frontend *tda10071_attach(const struct tda10071_config *config,
1185         struct i2c_adapter *i2c)
1186 {
1187         int ret;
1188         struct tda10071_priv *priv = NULL;
1189         u8 tmp;
1190
1191         /* allocate memory for the internal priv */
1192         priv = kzalloc(sizeof(struct tda10071_priv), GFP_KERNEL);
1193         if (priv == NULL) {
1194                 ret = -ENOMEM;
1195                 goto error;
1196         }
1197
1198         /* make sure demod i2c address is specified */
1199         if (!config->demod_i2c_addr) {
1200                 dev_dbg(&i2c->dev, "%s: invalid demod i2c address!\n", __func__);
1201                 ret = -EINVAL;
1202                 goto error;
1203         }
1204
1205         /* make sure tuner i2c address is specified */
1206         if (!config->tuner_i2c_addr) {
1207                 dev_dbg(&i2c->dev, "%s: invalid tuner i2c address!\n", __func__);
1208                 ret = -EINVAL;
1209                 goto error;
1210         }
1211
1212         /* setup the priv */
1213         priv->i2c = i2c;
1214         memcpy(&priv->cfg, config, sizeof(struct tda10071_config));
1215
1216         /* chip ID */
1217         ret = tda10071_rd_reg(priv, 0xff, &tmp);
1218         if (ret || tmp != 0x0f)
1219                 goto error;
1220
1221         /* chip type */
1222         ret = tda10071_rd_reg(priv, 0xdd, &tmp);
1223         if (ret || tmp != 0x00)
1224                 goto error;
1225
1226         /* chip version */
1227         ret = tda10071_rd_reg(priv, 0xfe, &tmp);
1228         if (ret || tmp != 0x01)
1229                 goto error;
1230
1231         /* create dvb_frontend */
1232         memcpy(&priv->fe.ops, &tda10071_ops, sizeof(struct dvb_frontend_ops));
1233         priv->fe.demodulator_priv = priv;
1234
1235         return &priv->fe;
1236 error:
1237         dev_dbg(&i2c->dev, "%s: failed=%d\n", __func__, ret);
1238         kfree(priv);
1239         return NULL;
1240 }
1241 EXPORT_SYMBOL(tda10071_attach);
1242
1243 static struct dvb_frontend_ops tda10071_ops = {
1244         .delsys = { SYS_DVBS, SYS_DVBS2 },
1245         .info = {
1246                 .name = "NXP TDA10071",
1247                 .frequency_min = 950000,
1248                 .frequency_max = 2150000,
1249                 .frequency_tolerance = 5000,
1250                 .symbol_rate_min = 1000000,
1251                 .symbol_rate_max = 45000000,
1252                 .caps = FE_CAN_INVERSION_AUTO |
1253                         FE_CAN_FEC_1_2 |
1254                         FE_CAN_FEC_2_3 |
1255                         FE_CAN_FEC_3_4 |
1256                         FE_CAN_FEC_4_5 |
1257                         FE_CAN_FEC_5_6 |
1258                         FE_CAN_FEC_6_7 |
1259                         FE_CAN_FEC_7_8 |
1260                         FE_CAN_FEC_8_9 |
1261                         FE_CAN_FEC_AUTO |
1262                         FE_CAN_QPSK |
1263                         FE_CAN_RECOVER |
1264                         FE_CAN_2G_MODULATION
1265         },
1266
1267         .release = tda10071_release,
1268
1269         .get_tune_settings = tda10071_get_tune_settings,
1270
1271         .init = tda10071_init,
1272         .sleep = tda10071_sleep,
1273
1274         .set_frontend = tda10071_set_frontend,
1275         .get_frontend = tda10071_get_frontend,
1276
1277         .read_status = tda10071_read_status,
1278         .read_snr = tda10071_read_snr,
1279         .read_signal_strength = tda10071_read_signal_strength,
1280         .read_ber = tda10071_read_ber,
1281         .read_ucblocks = tda10071_read_ucblocks,
1282
1283         .diseqc_send_master_cmd = tda10071_diseqc_send_master_cmd,
1284         .diseqc_recv_slave_reply = tda10071_diseqc_recv_slave_reply,
1285         .diseqc_send_burst = tda10071_diseqc_send_burst,
1286
1287         .set_tone = tda10071_set_tone,
1288         .set_voltage = tda10071_set_voltage,
1289 };
1290
1291 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1292 MODULE_DESCRIPTION("NXP TDA10071 DVB-S/S2 demodulator driver");
1293 MODULE_LICENSE("GPL");
1294 MODULE_FIRMWARE(TDA10071_FIRMWARE);