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 /* Max transfer size done by I2C transfer functions */
  24 #define MAX_XFER_SIZE  64
  25
  26 static struct dvb_frontend_ops tda10071_ops;
  27
  28 /* write multiple registers */
  29 static int tda10071_wr_regs(struct tda10071_priv *priv, u8 reg, u8 *val,
  30         int len)
  31 {
  32         int ret;
  33         u8 buf[MAX_XFER_SIZE];
  34         struct i2c_msg msg[1] = {
  35                 {
  36                         .addr = priv->cfg.demod_i2c_addr,
  37                         .flags = 0,
  38                         .len = 1 + len,
  39                         .buf = buf,
  40                 }
  41         };
  42
  43         if (1 + len > sizeof(buf)) {
  44                 dev_warn(&priv->i2c->dev,
  45                          "%s: i2c wr reg=%04x: len=%d is too big!\n",
  46                          KBUILD_MODNAME, reg, len);
  47                 return -EINVAL;
  48         }
  49
  50         buf[0] = reg;
  51         memcpy(&buf[1], val, len);
  52
  53         ret = i2c_transfer(priv->i2c, msg, 1);
  54         if (ret == 1) {
  55                 ret = 0;
  56         } else {
  57                 dev_warn(&priv->i2c->dev, "%s: i2c wr failed=%d reg=%02x " \
  58                                 "len=%d\n", KBUILD_MODNAME, ret, reg, len);
  59                 ret = -EREMOTEIO;
  60         }
  61         return ret;
  62 }
  63
  64 /* read multiple registers */
  65 static int tda10071_rd_regs(struct tda10071_priv *priv, u8 reg, u8 *val,
  66         int len)
  67 {
  68         int ret;
  69         u8 buf[MAX_XFER_SIZE];
  70         struct i2c_msg msg[2] = {
  71                 {
  72                         .addr = priv->cfg.demod_i2c_addr,
  73                         .flags = 0,
  74                         .len = 1,
  75                         .buf = &reg,
  76                 }, {
  77                         .addr = priv->cfg.demod_i2c_addr,
  78                         .flags = I2C_M_RD,
  79                         .len = len,
  80                         .buf = buf,
  81                 }
  82         };
  83
  84         if (len > sizeof(buf)) {
  85                 dev_warn(&priv->i2c->dev,
  86                          "%s: i2c wr reg=%04x: len=%d is too big!\n",
  87                          KBUILD_MODNAME, reg, len);
  88                 return -EINVAL;
  89         }
  90
  91         ret = i2c_transfer(priv->i2c, msg, 2);
  92         if (ret == 2) {
  93                 memcpy(val, buf, len);
  94                 ret = 0;
  95         } else {
  96                 dev_warn(&priv->i2c->dev, "%s: i2c rd failed=%d reg=%02x " \
  97                                 "len=%d\n", KBUILD_MODNAME, ret, reg, len);
  98                 ret = -EREMOTEIO;
  99         }
 100         return ret;
 101 }
 102
 103 /* write single register */
 104 static int tda10071_wr_reg(struct tda10071_priv *priv, u8 reg, u8 val)
 105 {
 106         return tda10071_wr_regs(priv, reg, &val, 1);
 107 }
 108
 109 /* read single register */
 110 static int tda10071_rd_reg(struct tda10071_priv *priv, u8 reg, u8 *val)
 111 {
 112         return tda10071_rd_regs(priv, reg, val, 1);
 113 }
 114
 115 /* write single register with mask */
 116 static int tda10071_wr_reg_mask(struct tda10071_priv *priv,
 117                                 u8 reg, u8 val, u8 mask)
 118 {
 119         int ret;
 120         u8 tmp;
 121
 122         /* no need for read if whole reg is written */
 123         if (mask != 0xff) {
 124                 ret = tda10071_rd_regs(priv, reg, &tmp, 1);
 125                 if (ret)
 126                         return ret;
 127
 128                 val &= mask;
 129                 tmp &= ~mask;
 130                 val |= tmp;
 131         }
 132
 133         return tda10071_wr_regs(priv, reg, &val, 1);
 134 }
 135
 136 /* read single register with mask */
 137 static int tda10071_rd_reg_mask(struct tda10071_priv *priv,
 138                                 u8 reg, u8 *val, u8 mask)
 139 {
 140         int ret, i;
 141         u8 tmp;
 142
 143         ret = tda10071_rd_regs(priv, reg, &tmp, 1);
 144         if (ret)
 145                 return ret;
 146
 147         tmp &= mask;
 148
 149         /* find position of the first bit */
 150         for (i = 0; i < 8; i++) {
 151                 if ((mask >> i) & 0x01)
 152                         break;
 153         }
 154         *val = tmp >> i;
 155
 156         return 0;
 157 }
 158
 159 /* execute firmware command */
 160 static int tda10071_cmd_execute(struct tda10071_priv *priv,
 161         struct tda10071_cmd *cmd)
 162 {
 163         int ret, i;
 164         u8 tmp;
 165
 166         if (!priv->warm) {
 167                 ret = -EFAULT;
 168                 goto error;
 169         }
 170
 171         /* write cmd and args for firmware */
 172         ret = tda10071_wr_regs(priv, 0x00, cmd->args, cmd->len);
 173         if (ret)
 174                 goto error;
 175
 176         /* start cmd execution */
 177         ret = tda10071_wr_reg(priv, 0x1f, 1);
 178         if (ret)
 179                 goto error;
 180
 181         /* wait cmd execution terminate */
 182         for (i = 1000, tmp = 1; i && tmp; i--) {
 183                 ret = tda10071_rd_reg(priv, 0x1f, &tmp);
 184                 if (ret)
 185                         goto error;
 186
 187                 usleep_range(200, 5000);
 188         }
 189
 190         dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
 191
 192         if (i == 0) {
 193                 ret = -ETIMEDOUT;
 194                 goto error;
 195         }
 196
 197         return ret;
 198 error:
 199         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 200         return ret;
 201 }
 202
 203 static int tda10071_set_tone(struct dvb_frontend *fe,
 204         fe_sec_tone_mode_t fe_sec_tone_mode)
 205 {
 206         struct tda10071_priv *priv = fe->demodulator_priv;
 207         struct tda10071_cmd cmd;
 208         int ret;
 209         u8 tone;
 210
 211         if (!priv->warm) {
 212                 ret = -EFAULT;
 213                 goto error;
 214         }
 215
 216         dev_dbg(&priv->i2c->dev, "%s: tone_mode=%d\n", __func__,
 217                         fe_sec_tone_mode);
 218
 219         switch (fe_sec_tone_mode) {
 220         case SEC_TONE_ON:
 221                 tone = 1;
 222                 break;
 223         case SEC_TONE_OFF:
 224                 tone = 0;
 225                 break;
 226         default:
 227                 dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_tone_mode\n",
 228                                 __func__);
 229                 ret = -EINVAL;
 230                 goto error;
 231         }
 232
 233         cmd.args[0] = CMD_LNB_PCB_CONFIG;
 234         cmd.args[1] = 0;
 235         cmd.args[2] = 0x00;
 236         cmd.args[3] = 0x00;
 237         cmd.args[4] = tone;
 238         cmd.len = 5;
 239         ret = tda10071_cmd_execute(priv, &cmd);
 240         if (ret)
 241                 goto error;
 242
 243         return ret;
 244 error:
 245         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 246         return ret;
 247 }
 248
 249 static int tda10071_set_voltage(struct dvb_frontend *fe,
 250         fe_sec_voltage_t fe_sec_voltage)
 251 {
 252         struct tda10071_priv *priv = fe->demodulator_priv;
 253         struct tda10071_cmd cmd;
 254         int ret;
 255         u8 voltage;
 256
 257         if (!priv->warm) {
 258                 ret = -EFAULT;
 259                 goto error;
 260         }
 261
 262         dev_dbg(&priv->i2c->dev, "%s: voltage=%d\n", __func__, fe_sec_voltage);
 263
 264         switch (fe_sec_voltage) {
 265         case SEC_VOLTAGE_13:
 266                 voltage = 0;
 267                 break;
 268         case SEC_VOLTAGE_18:
 269                 voltage = 1;
 270                 break;
 271         case SEC_VOLTAGE_OFF:
 272                 voltage = 0;
 273                 break;
 274         default:
 275                 dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_voltage\n",
 276                                 __func__);
 277                 ret = -EINVAL;
 278                 goto error;
 279         }
 280
 281         cmd.args[0] = CMD_LNB_SET_DC_LEVEL;
 282         cmd.args[1] = 0;
 283         cmd.args[2] = voltage;
 284         cmd.len = 3;
 285         ret = tda10071_cmd_execute(priv, &cmd);
 286         if (ret)
 287                 goto error;
 288
 289         return ret;
 290 error:
 291         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 292         return ret;
 293 }
 294
 295 static int tda10071_diseqc_send_master_cmd(struct dvb_frontend *fe,
 296         struct dvb_diseqc_master_cmd *diseqc_cmd)
 297 {
 298         struct tda10071_priv *priv = fe->demodulator_priv;
 299         struct tda10071_cmd cmd;
 300         int ret, i;
 301         u8 tmp;
 302
 303         if (!priv->warm) {
 304                 ret = -EFAULT;
 305                 goto error;
 306         }
 307
 308         dev_dbg(&priv->i2c->dev, "%s: msg_len=%d\n", __func__,
 309                         diseqc_cmd->msg_len);
 310
 311         if (diseqc_cmd->msg_len < 3 || diseqc_cmd->msg_len > 6) {
 312                 ret = -EINVAL;
 313                 goto error;
 314         }
 315
 316         /* wait LNB TX */
 317         for (i = 500, tmp = 0; i && !tmp; i--) {
 318                 ret = tda10071_rd_reg_mask(priv, 0x47, &tmp, 0x01);
 319                 if (ret)
 320                         goto error;
 321
 322                 usleep_range(10000, 20000);
 323         }
 324
 325         dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
 326
 327         if (i == 0) {
 328                 ret = -ETIMEDOUT;
 329                 goto error;
 330         }
 331
 332         ret = tda10071_wr_reg_mask(priv, 0x47, 0x00, 0x01);
 333         if (ret)
 334                 goto error;
 335
 336         cmd.args[0] = CMD_LNB_SEND_DISEQC;
 337         cmd.args[1] = 0;
 338         cmd.args[2] = 0;
 339         cmd.args[3] = 0;
 340         cmd.args[4] = 2;
 341         cmd.args[5] = 0;
 342         cmd.args[6] = diseqc_cmd->msg_len;
 343         memcpy(&cmd.args[7], diseqc_cmd->msg, diseqc_cmd->msg_len);
 344         cmd.len = 7 + diseqc_cmd->msg_len;
 345         ret = tda10071_cmd_execute(priv, &cmd);
 346         if (ret)
 347                 goto error;
 348
 349         return ret;
 350 error:
 351         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 352         return ret;
 353 }
 354
 355 static int tda10071_diseqc_recv_slave_reply(struct dvb_frontend *fe,
 356         struct dvb_diseqc_slave_reply *reply)
 357 {
 358         struct tda10071_priv *priv = fe->demodulator_priv;
 359         struct tda10071_cmd cmd;
 360         int ret, i;
 361         u8 tmp;
 362
 363         if (!priv->warm) {
 364                 ret = -EFAULT;
 365                 goto error;
 366         }
 367
 368         dev_dbg(&priv->i2c->dev, "%s:\n", __func__);
 369
 370         /* wait LNB RX */
 371         for (i = 500, tmp = 0; i && !tmp; i--) {
 372                 ret = tda10071_rd_reg_mask(priv, 0x47, &tmp, 0x02);
 373                 if (ret)
 374                         goto error;
 375
 376                 usleep_range(10000, 20000);
 377         }
 378
 379         dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
 380
 381         if (i == 0) {
 382                 ret = -ETIMEDOUT;
 383                 goto error;
 384         }
 385
 386         /* reply len */
 387         ret = tda10071_rd_reg(priv, 0x46, &tmp);
 388         if (ret)
 389                 goto error;
 390
 391         reply->msg_len = tmp & 0x1f; /* [4:0] */
 392         if (reply->msg_len > sizeof(reply->msg))
 393                 reply->msg_len = sizeof(reply->msg); /* truncate API max */
 394
 395         /* read reply */
 396         cmd.args[0] = CMD_LNB_UPDATE_REPLY;
 397         cmd.args[1] = 0;
 398         cmd.len = 2;
 399         ret = tda10071_cmd_execute(priv, &cmd);
 400         if (ret)
 401                 goto error;
 402
 403         ret = tda10071_rd_regs(priv, cmd.len, reply->msg, reply->msg_len);
 404         if (ret)
 405                 goto error;
 406
 407         return ret;
 408 error:
 409         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 410         return ret;
 411 }
 412
 413 static int tda10071_diseqc_send_burst(struct dvb_frontend *fe,
 414         fe_sec_mini_cmd_t fe_sec_mini_cmd)
 415 {
 416         struct tda10071_priv *priv = fe->demodulator_priv;
 417         struct tda10071_cmd cmd;
 418         int ret, i;
 419         u8 tmp, burst;
 420
 421         if (!priv->warm) {
 422                 ret = -EFAULT;
 423                 goto error;
 424         }
 425
 426         dev_dbg(&priv->i2c->dev, "%s: fe_sec_mini_cmd=%d\n", __func__,
 427                         fe_sec_mini_cmd);
 428
 429         switch (fe_sec_mini_cmd) {
 430         case SEC_MINI_A:
 431                 burst = 0;
 432                 break;
 433         case SEC_MINI_B:
 434                 burst = 1;
 435                 break;
 436         default:
 437                 dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_mini_cmd\n",
 438                                 __func__);
 439                 ret = -EINVAL;
 440                 goto error;
 441         }
 442
 443         /* wait LNB TX */
 444         for (i = 500, tmp = 0; i && !tmp; i--) {
 445                 ret = tda10071_rd_reg_mask(priv, 0x47, &tmp, 0x01);
 446                 if (ret)
 447                         goto error;
 448
 449                 usleep_range(10000, 20000);
 450         }
 451
 452         dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
 453
 454         if (i == 0) {
 455                 ret = -ETIMEDOUT;
 456                 goto error;
 457         }
 458
 459         ret = tda10071_wr_reg_mask(priv, 0x47, 0x00, 0x01);
 460         if (ret)
 461                 goto error;
 462
 463         cmd.args[0] = CMD_LNB_SEND_TONEBURST;
 464         cmd.args[1] = 0;
 465         cmd.args[2] = burst;
 466         cmd.len = 3;
 467         ret = tda10071_cmd_execute(priv, &cmd);
 468         if (ret)
 469                 goto error;
 470
 471         return ret;
 472 error:
 473         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 474         return ret;
 475 }
 476
 477 static int tda10071_read_status(struct dvb_frontend *fe, fe_status_t *status)
 478 {
 479         struct tda10071_priv *priv = fe->demodulator_priv;
 480         int ret;
 481         u8 tmp;
 482
 483         *status = 0;
 484
 485         if (!priv->warm) {
 486                 ret = 0;
 487                 goto error;
 488         }
 489
 490         ret = tda10071_rd_reg(priv, 0x39, &tmp);
 491         if (ret)
 492                 goto error;
 493
 494         if (tmp & 0x01) /* tuner PLL */
 495                 *status |= FE_HAS_SIGNAL;
 496         if (tmp & 0x02) /* demod PLL */
 497                 *status |= FE_HAS_CARRIER;
 498         if (tmp & 0x04) /* viterbi or LDPC*/
 499                 *status |= FE_HAS_VITERBI;
 500         if (tmp & 0x08) /* RS or BCH */
 501                 *status |= FE_HAS_SYNC | FE_HAS_LOCK;
 502
 503         priv->fe_status = *status;
 504
 505         return ret;
 506 error:
 507         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 508         return ret;
 509 }
 510
 511 static int tda10071_read_snr(struct dvb_frontend *fe, u16 *snr)
 512 {
 513         struct tda10071_priv *priv = fe->demodulator_priv;
 514         int ret;
 515         u8 buf[2];
 516
 517         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
 518                 *snr = 0;
 519                 ret = 0;
 520                 goto error;
 521         }
 522
 523         ret = tda10071_rd_regs(priv, 0x3a, buf, 2);
 524         if (ret)
 525                 goto error;
 526
 527         /* Es/No dBx10 */
 528         *snr = buf[0] << 8 | buf[1];
 529
 530         return ret;
 531 error:
 532         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 533         return ret;
 534 }
 535
 536 static int tda10071_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
 537 {
 538         struct tda10071_priv *priv = fe->demodulator_priv;
 539         struct tda10071_cmd cmd;
 540         int ret;
 541         u8 tmp;
 542
 543         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
 544                 *strength = 0;
 545                 ret = 0;
 546                 goto error;
 547         }
 548
 549         cmd.args[0] = CMD_GET_AGCACC;
 550         cmd.args[1] = 0;
 551         cmd.len = 2;
 552         ret = tda10071_cmd_execute(priv, &cmd);
 553         if (ret)
 554                 goto error;
 555
 556         /* input power estimate dBm */
 557         ret = tda10071_rd_reg(priv, 0x50, &tmp);
 558         if (ret)
 559                 goto error;
 560
 561         if (tmp < 181)
 562                 tmp = 181; /* -75 dBm */
 563         else if (tmp > 236)
 564                 tmp = 236; /* -20 dBm */
 565
 566         /* scale value to 0x0000-0xffff */
 567         *strength = (tmp-181) * 0xffff / (236-181);
 568
 569         return ret;
 570 error:
 571         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 572         return ret;
 573 }
 574
 575 static int tda10071_read_ber(struct dvb_frontend *fe, u32 *ber)
 576 {
 577         struct tda10071_priv *priv = fe->demodulator_priv;
 578         struct tda10071_cmd cmd;
 579         int ret, i, len;
 580         u8 tmp, reg, buf[8];
 581
 582         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
 583                 *ber = priv->ber = 0;
 584                 ret = 0;
 585                 goto error;
 586         }
 587
 588         switch (priv->delivery_system) {
 589         case SYS_DVBS:
 590                 reg = 0x4c;
 591                 len = 8;
 592                 i = 1;
 593                 break;
 594         case SYS_DVBS2:
 595                 reg = 0x4d;
 596                 len = 4;
 597                 i = 0;
 598                 break;
 599         default:
 600                 *ber = priv->ber = 0;
 601                 return 0;
 602         }
 603
 604         ret = tda10071_rd_reg(priv, reg, &tmp);
 605         if (ret)
 606                 goto error;
 607
 608         if (priv->meas_count[i] == tmp) {
 609                 dev_dbg(&priv->i2c->dev, "%s: meas not ready=%02x\n", __func__,
 610                                 tmp);
 611                 *ber = priv->ber;
 612                 return 0;
 613         } else {
 614                 priv->meas_count[i] = tmp;
 615         }
 616
 617         cmd.args[0] = CMD_BER_UPDATE_COUNTERS;
 618         cmd.args[1] = 0;
 619         cmd.args[2] = i;
 620         cmd.len = 3;
 621         ret = tda10071_cmd_execute(priv, &cmd);
 622         if (ret)
 623                 goto error;
 624
 625         ret = tda10071_rd_regs(priv, cmd.len, buf, len);
 626         if (ret)
 627                 goto error;
 628
 629         if (priv->delivery_system == SYS_DVBS) {
 630                 *ber = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
 631                 priv->ucb += (buf[4] << 8) | buf[5];
 632         } else {
 633                 *ber = (buf[0] << 8) | buf[1];
 634         }
 635         priv->ber = *ber;
 636
 637         return ret;
 638 error:
 639         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 640         return ret;
 641 }
 642
 643 static int tda10071_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
 644 {
 645         struct tda10071_priv *priv = fe->demodulator_priv;
 646         int ret = 0;
 647
 648         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
 649                 *ucblocks = 0;
 650                 goto error;
 651         }
 652
 653         /* UCB is updated when BER is read. Assume BER is read anyway. */
 654
 655         *ucblocks = priv->ucb;
 656
 657         return ret;
 658 error:
 659         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 660         return ret;
 661 }
 662
 663 static int tda10071_set_frontend(struct dvb_frontend *fe)
 664 {
 665         struct tda10071_priv *priv = fe->demodulator_priv;
 666         struct tda10071_cmd cmd;
 667         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 668         int ret, i;
 669         u8 mode, rolloff, pilot, inversion, div;
 670
 671         dev_dbg(&priv->i2c->dev, "%s: delivery_system=%d modulation=%d " \
 672                 "frequency=%d symbol_rate=%d inversion=%d pilot=%d " \
 673                 "rolloff=%d\n", __func__, c->delivery_system, c->modulation,
 674                 c->frequency, c->symbol_rate, c->inversion, c->pilot,
 675                 c->rolloff);
 676
 677         priv->delivery_system = SYS_UNDEFINED;
 678
 679         if (!priv->warm) {
 680                 ret = -EFAULT;
 681                 goto error;
 682         }
 683
 684         switch (c->inversion) {
 685         case INVERSION_OFF:
 686                 inversion = 1;
 687                 break;
 688         case INVERSION_ON:
 689                 inversion = 0;
 690                 break;
 691         case INVERSION_AUTO:
 692                 /* 2 = auto; try first on then off
 693                  * 3 = auto; try first off then on */
 694                 inversion = 3;
 695                 break;
 696         default:
 697                 dev_dbg(&priv->i2c->dev, "%s: invalid inversion\n", __func__);
 698                 ret = -EINVAL;
 699                 goto error;
 700         }
 701
 702         switch (c->delivery_system) {
 703         case SYS_DVBS:
 704                 rolloff = 0;
 705                 pilot = 2;
 706                 break;
 707         case SYS_DVBS2:
 708                 switch (c->rolloff) {
 709                 case ROLLOFF_20:
 710                         rolloff = 2;
 711                         break;
 712                 case ROLLOFF_25:
 713                         rolloff = 1;
 714                         break;
 715                 case ROLLOFF_35:
 716                         rolloff = 0;
 717                         break;
 718                 case ROLLOFF_AUTO:
 719                 default:
 720                         dev_dbg(&priv->i2c->dev, "%s: invalid rolloff\n",
 721                                         __func__);
 722                         ret = -EINVAL;
 723                         goto error;
 724                 }
 725
 726                 switch (c->pilot) {
 727                 case PILOT_OFF:
 728                         pilot = 0;
 729                         break;
 730                 case PILOT_ON:
 731                         pilot = 1;
 732                         break;
 733                 case PILOT_AUTO:
 734                         pilot = 2;
 735                         break;
 736                 default:
 737                         dev_dbg(&priv->i2c->dev, "%s: invalid pilot\n",
 738                                         __func__);
 739                         ret = -EINVAL;
 740                         goto error;
 741                 }
 742                 break;
 743         default:
 744                 dev_dbg(&priv->i2c->dev, "%s: invalid delivery_system\n",
 745                                 __func__);
 746                 ret = -EINVAL;
 747                 goto error;
 748         }
 749
 750         for (i = 0, mode = 0xff; i < ARRAY_SIZE(TDA10071_MODCOD); i++) {
 751                 if (c->delivery_system == TDA10071_MODCOD[i].delivery_system &&
 752                         c->modulation == TDA10071_MODCOD[i].modulation &&
 753                         c->fec_inner == TDA10071_MODCOD[i].fec) {
 754                         mode = TDA10071_MODCOD[i].val;
 755                         dev_dbg(&priv->i2c->dev, "%s: mode found=%02x\n",
 756                                         __func__, mode);
 757                         break;
 758                 }
 759         }
 760
 761         if (mode == 0xff) {
 762                 dev_dbg(&priv->i2c->dev, "%s: invalid parameter combination\n",
 763                                 __func__);
 764                 ret = -EINVAL;
 765                 goto error;
 766         }
 767
 768         if (c->symbol_rate <= 5000000)
 769                 div = 14;
 770         else
 771                 div = 4;
 772
 773         ret = tda10071_wr_reg(priv, 0x81, div);
 774         if (ret)
 775                 goto error;
 776
 777         ret = tda10071_wr_reg(priv, 0xe3, div);
 778         if (ret)
 779                 goto error;
 780
 781         cmd.args[0] = CMD_CHANGE_CHANNEL;
 782         cmd.args[1] = 0;
 783         cmd.args[2] = mode;
 784         cmd.args[3] = (c->frequency >> 16) & 0xff;
 785         cmd.args[4] = (c->frequency >>  8) & 0xff;
 786         cmd.args[5] = (c->frequency >>  0) & 0xff;
 787         cmd.args[6] = ((c->symbol_rate / 1000) >> 8) & 0xff;
 788         cmd.args[7] = ((c->symbol_rate / 1000) >> 0) & 0xff;
 789         cmd.args[8] = (tda10071_ops.info.frequency_tolerance >> 8) & 0xff;
 790         cmd.args[9] = (tda10071_ops.info.frequency_tolerance >> 0) & 0xff;
 791         cmd.args[10] = rolloff;
 792         cmd.args[11] = inversion;
 793         cmd.args[12] = pilot;
 794         cmd.args[13] = 0x00;
 795         cmd.args[14] = 0x00;
 796         cmd.len = 15;
 797         ret = tda10071_cmd_execute(priv, &cmd);
 798         if (ret)
 799                 goto error;
 800
 801         priv->delivery_system = c->delivery_system;
 802
 803         return ret;
 804 error:
 805         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 806         return ret;
 807 }
 808
 809 static int tda10071_get_frontend(struct dvb_frontend *fe)
 810 {
 811         struct tda10071_priv *priv = fe->demodulator_priv;
 812         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 813         int ret, i;
 814         u8 buf[5], tmp;
 815
 816         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
 817                 ret = -EFAULT;
 818                 goto error;
 819         }
 820
 821         ret = tda10071_rd_regs(priv, 0x30, buf, 5);
 822         if (ret)
 823                 goto error;
 824
 825         tmp = buf[0] & 0x3f;
 826         for (i = 0; i < ARRAY_SIZE(TDA10071_MODCOD); i++) {
 827                 if (tmp == TDA10071_MODCOD[i].val) {
 828                         c->modulation = TDA10071_MODCOD[i].modulation;
 829                         c->fec_inner = TDA10071_MODCOD[i].fec;
 830                         c->delivery_system = TDA10071_MODCOD[i].delivery_system;
 831                 }
 832         }
 833
 834         switch ((buf[1] >> 0) & 0x01) {
 835         case 0:
 836                 c->inversion = INVERSION_OFF;
 837                 break;
 838         case 1:
 839                 c->inversion = INVERSION_ON;
 840                 break;
 841         }
 842
 843         switch ((buf[1] >> 7) & 0x01) {
 844         case 0:
 845                 c->pilot = PILOT_OFF;
 846                 break;
 847         case 1:
 848                 c->pilot = PILOT_ON;
 849                 break;
 850         }
 851
 852         c->frequency = (buf[2] << 16) | (buf[3] << 8) | (buf[4] << 0);
 853
 854         ret = tda10071_rd_regs(priv, 0x52, buf, 3);
 855         if (ret)
 856                 goto error;
 857
 858         c->symbol_rate = (buf[0] << 16) | (buf[1] << 8) | (buf[2] << 0);
 859
 860         return ret;
 861 error:
 862         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 863         return ret;
 864 }
 865
 866 static int tda10071_init(struct dvb_frontend *fe)
 867 {
 868         struct tda10071_priv *priv = fe->demodulator_priv;
 869         struct tda10071_cmd cmd;
 870         int ret, i, len, remaining, fw_size;
 871         const struct firmware *fw;
 872         u8 *fw_file = TDA10071_FIRMWARE;
 873         u8 tmp, buf[4];
 874         struct tda10071_reg_val_mask tab[] = {
 875                 { 0xcd, 0x00, 0x07 },
 876                 { 0x80, 0x00, 0x02 },
 877                 { 0xcd, 0x00, 0xc0 },
 878                 { 0xce, 0x00, 0x1b },
 879                 { 0x9d, 0x00, 0x01 },
 880                 { 0x9d, 0x00, 0x02 },
 881                 { 0x9e, 0x00, 0x01 },
 882                 { 0x87, 0x00, 0x80 },
 883                 { 0xce, 0x00, 0x08 },
 884                 { 0xce, 0x00, 0x10 },
 885         };
 886         struct tda10071_reg_val_mask tab2[] = {
 887                 { 0xf1, 0x70, 0xff },
 888                 { 0x88, priv->cfg.pll_multiplier, 0x3f },
 889                 { 0x89, 0x00, 0x10 },
 890                 { 0x89, 0x10, 0x10 },
 891                 { 0xc0, 0x01, 0x01 },
 892                 { 0xc0, 0x00, 0x01 },
 893                 { 0xe0, 0xff, 0xff },
 894                 { 0xe0, 0x00, 0xff },
 895                 { 0x96, 0x1e, 0x7e },
 896                 { 0x8b, 0x08, 0x08 },
 897                 { 0x8b, 0x00, 0x08 },
 898                 { 0x8f, 0x1a, 0x7e },
 899                 { 0x8c, 0x68, 0xff },
 900                 { 0x8d, 0x08, 0xff },
 901                 { 0x8e, 0x4c, 0xff },
 902                 { 0x8f, 0x01, 0x01 },
 903                 { 0x8b, 0x04, 0x04 },
 904                 { 0x8b, 0x00, 0x04 },
 905                 { 0x87, 0x05, 0x07 },
 906                 { 0x80, 0x00, 0x20 },
 907                 { 0xc8, 0x01, 0xff },
 908                 { 0xb4, 0x47, 0xff },
 909                 { 0xb5, 0x9c, 0xff },
 910                 { 0xb6, 0x7d, 0xff },
 911                 { 0xba, 0x00, 0x03 },
 912                 { 0xb7, 0x47, 0xff },
 913                 { 0xb8, 0x9c, 0xff },
 914                 { 0xb9, 0x7d, 0xff },
 915                 { 0xba, 0x00, 0x0c },
 916                 { 0xc8, 0x00, 0xff },
 917                 { 0xcd, 0x00, 0x04 },
 918                 { 0xcd, 0x00, 0x20 },
 919                 { 0xe8, 0x02, 0xff },
 920                 { 0xcf, 0x20, 0xff },
 921                 { 0x9b, 0xd7, 0xff },
 922                 { 0x9a, 0x01, 0x03 },
 923                 { 0xa8, 0x05, 0x0f },
 924                 { 0xa8, 0x65, 0xf0 },
 925                 { 0xa6, 0xa0, 0xf0 },
 926                 { 0x9d, 0x50, 0xfc },
 927                 { 0x9e, 0x20, 0xe0 },
 928                 { 0xa3, 0x1c, 0x7c },
 929                 { 0xd5, 0x03, 0x03 },
 930         };
 931
 932         if (priv->warm) {
 933                 /* warm state - wake up device from sleep */
 934
 935                 for (i = 0; i < ARRAY_SIZE(tab); i++) {
 936                         ret = tda10071_wr_reg_mask(priv, tab[i].reg,
 937                                 tab[i].val, tab[i].mask);
 938                         if (ret)
 939                                 goto error;
 940                 }
 941
 942                 cmd.args[0] = CMD_SET_SLEEP_MODE;
 943                 cmd.args[1] = 0;
 944                 cmd.args[2] = 0;
 945                 cmd.len = 3;
 946                 ret = tda10071_cmd_execute(priv, &cmd);
 947                 if (ret)
 948                         goto error;
 949         } else {
 950                 /* cold state - try to download firmware */
 951
 952                 /* request the firmware, this will block and timeout */
 953                 ret = request_firmware(&fw, fw_file, priv->i2c->dev.parent);
 954                 if (ret) {
 955                         dev_err(&priv->i2c->dev, "%s: did not find the " \
 956                                         "firmware file. (%s) Please see " \
 957                                         "linux/Documentation/dvb/ for more " \
 958                                         "details on firmware-problems. (%d)\n",
 959                                         KBUILD_MODNAME, fw_file, ret);
 960                         goto error;
 961                 }
 962
 963                 /* init */
 964                 for (i = 0; i < ARRAY_SIZE(tab2); i++) {
 965                         ret = tda10071_wr_reg_mask(priv, tab2[i].reg,
 966                                 tab2[i].val, tab2[i].mask);
 967                         if (ret)
 968                                 goto error_release_firmware;
 969                 }
 970
 971                 /*  download firmware */
 972                 ret = tda10071_wr_reg(priv, 0xe0, 0x7f);
 973                 if (ret)
 974                         goto error_release_firmware;
 975
 976                 ret = tda10071_wr_reg(priv, 0xf7, 0x81);
 977                 if (ret)
 978                         goto error_release_firmware;
 979
 980                 ret = tda10071_wr_reg(priv, 0xf8, 0x00);
 981                 if (ret)
 982                         goto error_release_firmware;
 983
 984                 ret = tda10071_wr_reg(priv, 0xf9, 0x00);
 985                 if (ret)
 986                         goto error_release_firmware;
 987
 988                 dev_info(&priv->i2c->dev, "%s: found a '%s' in cold state, " \
 989                                 "will try to load a firmware\n", KBUILD_MODNAME,
 990                                 tda10071_ops.info.name);
 991                 dev_info(&priv->i2c->dev, "%s: downloading firmware from " \
 992                                 "file '%s'\n", KBUILD_MODNAME, fw_file);
 993
 994                 /* do not download last byte */
 995                 fw_size = fw->size - 1;
 996
 997                 for (remaining = fw_size; remaining > 0;
 998                         remaining -= (priv->cfg.i2c_wr_max - 1)) {
 999                         len = remaining;
1000                         if (len > (priv->cfg.i2c_wr_max - 1))
1001                                 len = (priv->cfg.i2c_wr_max - 1);
1002
1003                         ret = tda10071_wr_regs(priv, 0xfa,
1004                                 (u8 *) &fw->data[fw_size - remaining], len);
1005                         if (ret) {
1006                                 dev_err(&priv->i2c->dev, "%s: firmware " \
1007                                                 "download failed=%d\n",
1008                                                 KBUILD_MODNAME, ret);
1009                                 if (ret)
1010                                         goto error_release_firmware;
1011                         }
1012                 }
1013                 release_firmware(fw);
1014
1015                 ret = tda10071_wr_reg(priv, 0xf7, 0x0c);
1016                 if (ret)
1017                         goto error;
1018
1019                 ret = tda10071_wr_reg(priv, 0xe0, 0x00);
1020                 if (ret)
1021                         goto error;
1022
1023                 /* wait firmware start */
1024                 msleep(250);
1025
1026                 /* firmware status */
1027                 ret = tda10071_rd_reg(priv, 0x51, &tmp);
1028                 if (ret)
1029                         goto error;
1030
1031                 if (tmp) {
1032                         dev_info(&priv->i2c->dev, "%s: firmware did not run\n",
1033                                         KBUILD_MODNAME);
1034                         ret = -EFAULT;
1035                         goto error;
1036                 } else {
1037                         priv->warm = 1;
1038                 }
1039
1040                 cmd.args[0] = CMD_GET_FW_VERSION;
1041                 cmd.len = 1;
1042                 ret = tda10071_cmd_execute(priv, &cmd);
1043                 if (ret)
1044                         goto error;
1045
1046                 ret = tda10071_rd_regs(priv, cmd.len, buf, 4);
1047                 if (ret)
1048                         goto error;
1049
1050                 dev_info(&priv->i2c->dev, "%s: firmware version %d.%d.%d.%d\n",
1051                                 KBUILD_MODNAME, buf[0], buf[1], buf[2], buf[3]);
1052                 dev_info(&priv->i2c->dev, "%s: found a '%s' in warm state\n",
1053                                 KBUILD_MODNAME, tda10071_ops.info.name);
1054
1055                 ret = tda10071_rd_regs(priv, 0x81, buf, 2);
1056                 if (ret)
1057                         goto error;
1058
1059                 cmd.args[0] = CMD_DEMOD_INIT;
1060                 cmd.args[1] = ((priv->cfg.xtal / 1000) >> 8) & 0xff;
1061                 cmd.args[2] = ((priv->cfg.xtal / 1000) >> 0) & 0xff;
1062                 cmd.args[3] = buf[0];
1063                 cmd.args[4] = buf[1];
1064                 cmd.args[5] = priv->cfg.pll_multiplier;
1065                 cmd.args[6] = priv->cfg.spec_inv;
1066                 cmd.args[7] = 0x00;
1067                 cmd.len = 8;
1068                 ret = tda10071_cmd_execute(priv, &cmd);
1069                 if (ret)
1070                         goto error;
1071
1072                 cmd.args[0] = CMD_TUNER_INIT;
1073                 cmd.args[1] = 0x00;
1074                 cmd.args[2] = 0x00;
1075                 cmd.args[3] = 0x00;
1076                 cmd.args[4] = 0x00;
1077                 cmd.args[5] = (priv->cfg.tuner_i2c_addr) ? priv->cfg.tuner_i2c_addr : 0x14;
1078                 cmd.args[6] = 0x00;
1079                 cmd.args[7] = 0x03;
1080                 cmd.args[8] = 0x02;
1081                 cmd.args[9] = 0x02;
1082                 cmd.args[10] = 0x00;
1083                 cmd.args[11] = 0x00;
1084                 cmd.args[12] = 0x00;
1085                 cmd.args[13] = 0x00;
1086                 cmd.args[14] = 0x00;
1087                 cmd.len = 15;
1088                 ret = tda10071_cmd_execute(priv, &cmd);
1089                 if (ret)
1090                         goto error;
1091
1092                 cmd.args[0] = CMD_MPEG_CONFIG;
1093                 cmd.args[1] = 0;
1094                 cmd.args[2] = priv->cfg.ts_mode;
1095                 cmd.args[3] = 0x00;
1096                 cmd.args[4] = 0x04;
1097                 cmd.args[5] = 0x00;
1098                 cmd.len = 6;
1099                 ret = tda10071_cmd_execute(priv, &cmd);
1100                 if (ret)
1101                         goto error;
1102
1103                 ret = tda10071_wr_reg_mask(priv, 0xf0, 0x01, 0x01);
1104                 if (ret)
1105                         goto error;
1106
1107                 cmd.args[0] = CMD_LNB_CONFIG;
1108                 cmd.args[1] = 0;
1109                 cmd.args[2] = 150;
1110                 cmd.args[3] = 3;
1111                 cmd.args[4] = 22;
1112                 cmd.args[5] = 1;
1113                 cmd.args[6] = 1;
1114                 cmd.args[7] = 30;
1115                 cmd.args[8] = 30;
1116                 cmd.args[9] = 30;
1117                 cmd.args[10] = 30;
1118                 cmd.len = 11;
1119                 ret = tda10071_cmd_execute(priv, &cmd);
1120                 if (ret)
1121                         goto error;
1122
1123                 cmd.args[0] = CMD_BER_CONTROL;
1124                 cmd.args[1] = 0;
1125                 cmd.args[2] = 14;
1126                 cmd.args[3] = 14;
1127                 cmd.len = 4;
1128                 ret = tda10071_cmd_execute(priv, &cmd);
1129                 if (ret)
1130                         goto error;
1131         }
1132
1133         return ret;
1134 error_release_firmware:
1135         release_firmware(fw);
1136 error:
1137         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
1138         return ret;
1139 }
1140
1141 static int tda10071_sleep(struct dvb_frontend *fe)
1142 {
1143         struct tda10071_priv *priv = fe->demodulator_priv;
1144         struct tda10071_cmd cmd;
1145         int ret, i;
1146         struct tda10071_reg_val_mask tab[] = {
1147                 { 0xcd, 0x07, 0x07 },
1148                 { 0x80, 0x02, 0x02 },
1149                 { 0xcd, 0xc0, 0xc0 },
1150                 { 0xce, 0x1b, 0x1b },
1151                 { 0x9d, 0x01, 0x01 },
1152                 { 0x9d, 0x02, 0x02 },
1153                 { 0x9e, 0x01, 0x01 },
1154                 { 0x87, 0x80, 0x80 },
1155                 { 0xce, 0x08, 0x08 },
1156                 { 0xce, 0x10, 0x10 },
1157         };
1158
1159         if (!priv->warm) {
1160                 ret = -EFAULT;
1161                 goto error;
1162         }
1163
1164         cmd.args[0] = CMD_SET_SLEEP_MODE;
1165         cmd.args[1] = 0;
1166         cmd.args[2] = 1;
1167         cmd.len = 3;
1168         ret = tda10071_cmd_execute(priv, &cmd);
1169         if (ret)
1170                 goto error;
1171
1172         for (i = 0; i < ARRAY_SIZE(tab); i++) {
1173                 ret = tda10071_wr_reg_mask(priv, tab[i].reg, tab[i].val,
1174                         tab[i].mask);
1175                 if (ret)
1176                         goto error;
1177         }
1178
1179         return ret;
1180 error:
1181         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
1182         return ret;
1183 }
1184
1185 static int tda10071_get_tune_settings(struct dvb_frontend *fe,
1186         struct dvb_frontend_tune_settings *s)
1187 {
1188         s->min_delay_ms = 8000;
1189         s->step_size = 0;
1190         s->max_drift = 0;
1191
1192         return 0;
1193 }
1194
1195 static void tda10071_release(struct dvb_frontend *fe)
1196 {
1197         struct tda10071_priv *priv = fe->demodulator_priv;
1198         kfree(priv);
1199 }
1200
1201 struct dvb_frontend *tda10071_attach(const struct tda10071_config *config,
1202         struct i2c_adapter *i2c)
1203 {
1204         int ret;
1205         struct tda10071_priv *priv = NULL;
1206         u8 tmp;
1207
1208         /* allocate memory for the internal priv */
1209         priv = kzalloc(sizeof(struct tda10071_priv), GFP_KERNEL);
1210         if (priv == NULL) {
1211                 ret = -ENOMEM;
1212                 goto error;
1213         }
1214
1215         /* make sure demod i2c address is specified */
1216         if (!config->demod_i2c_addr) {
1217                 dev_dbg(&i2c->dev, "%s: invalid demod i2c address!\n", __func__);
1218                 ret = -EINVAL;
1219                 goto error;
1220         }
1221
1222         /* make sure tuner i2c address is specified */
1223         if (!config->tuner_i2c_addr) {
1224                 dev_dbg(&i2c->dev, "%s: invalid tuner i2c address!\n", __func__);
1225                 ret = -EINVAL;
1226                 goto error;
1227         }
1228
1229         /* setup the priv */
1230         priv->i2c = i2c;
1231         memcpy(&priv->cfg, config, sizeof(struct tda10071_config));
1232
1233         /* chip ID */
1234         ret = tda10071_rd_reg(priv, 0xff, &tmp);
1235         if (ret || tmp != 0x0f)
1236                 goto error;
1237
1238         /* chip type */
1239         ret = tda10071_rd_reg(priv, 0xdd, &tmp);
1240         if (ret || tmp != 0x00)
1241                 goto error;
1242
1243         /* chip version */
1244         ret = tda10071_rd_reg(priv, 0xfe, &tmp);
1245         if (ret || tmp != 0x01)
1246                 goto error;
1247
1248         /* create dvb_frontend */
1249         memcpy(&priv->fe.ops, &tda10071_ops, sizeof(struct dvb_frontend_ops));
1250         priv->fe.demodulator_priv = priv;
1251
1252         return &priv->fe;
1253 error:
1254         dev_dbg(&i2c->dev, "%s: failed=%d\n", __func__, ret);
1255         kfree(priv);
1256         return NULL;
1257 }
1258 EXPORT_SYMBOL(tda10071_attach);
1259
1260 static struct dvb_frontend_ops tda10071_ops = {
1261         .delsys = { SYS_DVBS, SYS_DVBS2 },
1262         .info = {
1263                 .name = "NXP TDA10071",
1264                 .frequency_min = 950000,
1265                 .frequency_max = 2150000,
1266                 .frequency_tolerance = 5000,
1267                 .symbol_rate_min = 1000000,
1268                 .symbol_rate_max = 45000000,
1269                 .caps = FE_CAN_INVERSION_AUTO |
1270                         FE_CAN_FEC_1_2 |
1271                         FE_CAN_FEC_2_3 |
1272                         FE_CAN_FEC_3_4 |
1273                         FE_CAN_FEC_4_5 |
1274                         FE_CAN_FEC_5_6 |
1275                         FE_CAN_FEC_6_7 |
1276                         FE_CAN_FEC_7_8 |
1277                         FE_CAN_FEC_8_9 |
1278                         FE_CAN_FEC_AUTO |
1279                         FE_CAN_QPSK |
1280                         FE_CAN_RECOVER |
1281                         FE_CAN_2G_MODULATION
1282         },
1283
1284         .release = tda10071_release,
1285
1286         .get_tune_settings = tda10071_get_tune_settings,
1287
1288         .init = tda10071_init,
1289         .sleep = tda10071_sleep,
1290
1291         .set_frontend = tda10071_set_frontend,
1292         .get_frontend = tda10071_get_frontend,
1293
1294         .read_status = tda10071_read_status,
1295         .read_snr = tda10071_read_snr,
1296         .read_signal_strength = tda10071_read_signal_strength,
1297         .read_ber = tda10071_read_ber,
1298         .read_ucblocks = tda10071_read_ucblocks,
1299
1300         .diseqc_send_master_cmd = tda10071_diseqc_send_master_cmd,
1301         .diseqc_recv_slave_reply = tda10071_diseqc_recv_slave_reply,
1302         .diseqc_send_burst = tda10071_diseqc_send_burst,
1303
1304         .set_tone = tda10071_set_tone,
1305         .set_voltage = tda10071_set_voltage,
1306 };
1307
1308 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1309 MODULE_DESCRIPTION("NXP TDA10071 DVB-S/S2 demodulator driver");
1310 MODULE_LICENSE("GPL");
1311 MODULE_FIRMWARE(TDA10071_FIRMWARE);