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,
  58                                 "%s: i2c wr failed=%d reg=%02x len=%d\n",
  59                                 KBUILD_MODNAME, ret, reg, len);
  60                 ret = -EREMOTEIO;
  61         }
  62         return ret;
  63 }
  64
  65 /* read multiple registers */
  66 static int tda10071_rd_regs(struct tda10071_priv *priv, u8 reg, u8 *val,
  67         int len)
  68 {
  69         int ret;
  70         u8 buf[MAX_XFER_SIZE];
  71         struct i2c_msg msg[2] = {
  72                 {
  73                         .addr = priv->cfg.demod_i2c_addr,
  74                         .flags = 0,
  75                         .len = 1,
  76                         .buf = &reg,
  77                 }, {
  78                         .addr = priv->cfg.demod_i2c_addr,
  79                         .flags = I2C_M_RD,
  80                         .len = len,
  81                         .buf = buf,
  82                 }
  83         };
  84
  85         if (len > sizeof(buf)) {
  86                 dev_warn(&priv->i2c->dev,
  87                                 "%s: i2c wr reg=%04x: len=%d is too big!\n",
  88                                 KBUILD_MODNAME, reg, len);
  89                 return -EINVAL;
  90         }
  91
  92         ret = i2c_transfer(priv->i2c, msg, 2);
  93         if (ret == 2) {
  94                 memcpy(val, buf, len);
  95                 ret = 0;
  96         } else {
  97                 dev_warn(&priv->i2c->dev,
  98                                 "%s: i2c rd failed=%d reg=%02x len=%d\n",
  99                                 KBUILD_MODNAME, ret, reg, len);
 100                 ret = -EREMOTEIO;
 101         }
 102         return ret;
 103 }
 104
 105 /* write single register */
 106 static int tda10071_wr_reg(struct tda10071_priv *priv, u8 reg, u8 val)
 107 {
 108         return tda10071_wr_regs(priv, reg, &val, 1);
 109 }
 110
 111 /* read single register */
 112 static int tda10071_rd_reg(struct tda10071_priv *priv, u8 reg, u8 *val)
 113 {
 114         return tda10071_rd_regs(priv, reg, val, 1);
 115 }
 116
 117 /* write single register with mask */
 118 static int tda10071_wr_reg_mask(struct tda10071_priv *priv,
 119                                 u8 reg, u8 val, u8 mask)
 120 {
 121         int ret;
 122         u8 tmp;
 123
 124         /* no need for read if whole reg is written */
 125         if (mask != 0xff) {
 126                 ret = tda10071_rd_regs(priv, reg, &tmp, 1);
 127                 if (ret)
 128                         return ret;
 129
 130                 val &= mask;
 131                 tmp &= ~mask;
 132                 val |= tmp;
 133         }
 134
 135         return tda10071_wr_regs(priv, reg, &val, 1);
 136 }
 137
 138 /* read single register with mask */
 139 static int tda10071_rd_reg_mask(struct tda10071_priv *priv,
 140                                 u8 reg, u8 *val, u8 mask)
 141 {
 142         int ret, i;
 143         u8 tmp;
 144
 145         ret = tda10071_rd_regs(priv, reg, &tmp, 1);
 146         if (ret)
 147                 return ret;
 148
 149         tmp &= mask;
 150
 151         /* find position of the first bit */
 152         for (i = 0; i < 8; i++) {
 153                 if ((mask >> i) & 0x01)
 154                         break;
 155         }
 156         *val = tmp >> i;
 157
 158         return 0;
 159 }
 160
 161 /* execute firmware command */
 162 static int tda10071_cmd_execute(struct tda10071_priv *priv,
 163         struct tda10071_cmd *cmd)
 164 {
 165         int ret, i;
 166         u8 tmp;
 167
 168         if (!priv->warm) {
 169                 ret = -EFAULT;
 170                 goto error;
 171         }
 172
 173         /* write cmd and args for firmware */
 174         ret = tda10071_wr_regs(priv, 0x00, cmd->args, cmd->len);
 175         if (ret)
 176                 goto error;
 177
 178         /* start cmd execution */
 179         ret = tda10071_wr_reg(priv, 0x1f, 1);
 180         if (ret)
 181                 goto error;
 182
 183         /* wait cmd execution terminate */
 184         for (i = 1000, tmp = 1; i && tmp; i--) {
 185                 ret = tda10071_rd_reg(priv, 0x1f, &tmp);
 186                 if (ret)
 187                         goto error;
 188
 189                 usleep_range(200, 5000);
 190         }
 191
 192         dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
 193
 194         if (i == 0) {
 195                 ret = -ETIMEDOUT;
 196                 goto error;
 197         }
 198
 199         return ret;
 200 error:
 201         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 202         return ret;
 203 }
 204
 205 static int tda10071_set_tone(struct dvb_frontend *fe,
 206         fe_sec_tone_mode_t fe_sec_tone_mode)
 207 {
 208         struct tda10071_priv *priv = fe->demodulator_priv;
 209         struct tda10071_cmd cmd;
 210         int ret;
 211         u8 tone;
 212
 213         if (!priv->warm) {
 214                 ret = -EFAULT;
 215                 goto error;
 216         }
 217
 218         dev_dbg(&priv->i2c->dev, "%s: tone_mode=%d\n", __func__,
 219                         fe_sec_tone_mode);
 220
 221         switch (fe_sec_tone_mode) {
 222         case SEC_TONE_ON:
 223                 tone = 1;
 224                 break;
 225         case SEC_TONE_OFF:
 226                 tone = 0;
 227                 break;
 228         default:
 229                 dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_tone_mode\n",
 230                                 __func__);
 231                 ret = -EINVAL;
 232                 goto error;
 233         }
 234
 235         cmd.args[0] = CMD_LNB_PCB_CONFIG;
 236         cmd.args[1] = 0;
 237         cmd.args[2] = 0x00;
 238         cmd.args[3] = 0x00;
 239         cmd.args[4] = tone;
 240         cmd.len = 5;
 241         ret = tda10071_cmd_execute(priv, &cmd);
 242         if (ret)
 243                 goto error;
 244
 245         return ret;
 246 error:
 247         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 248         return ret;
 249 }
 250
 251 static int tda10071_set_voltage(struct dvb_frontend *fe,
 252         fe_sec_voltage_t fe_sec_voltage)
 253 {
 254         struct tda10071_priv *priv = fe->demodulator_priv;
 255         struct tda10071_cmd cmd;
 256         int ret;
 257         u8 voltage;
 258
 259         if (!priv->warm) {
 260                 ret = -EFAULT;
 261                 goto error;
 262         }
 263
 264         dev_dbg(&priv->i2c->dev, "%s: voltage=%d\n", __func__, fe_sec_voltage);
 265
 266         switch (fe_sec_voltage) {
 267         case SEC_VOLTAGE_13:
 268                 voltage = 0;
 269                 break;
 270         case SEC_VOLTAGE_18:
 271                 voltage = 1;
 272                 break;
 273         case SEC_VOLTAGE_OFF:
 274                 voltage = 0;
 275                 break;
 276         default:
 277                 dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_voltage\n",
 278                                 __func__);
 279                 ret = -EINVAL;
 280                 goto error;
 281         }
 282
 283         cmd.args[0] = CMD_LNB_SET_DC_LEVEL;
 284         cmd.args[1] = 0;
 285         cmd.args[2] = voltage;
 286         cmd.len = 3;
 287         ret = tda10071_cmd_execute(priv, &cmd);
 288         if (ret)
 289                 goto error;
 290
 291         return ret;
 292 error:
 293         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 294         return ret;
 295 }
 296
 297 static int tda10071_diseqc_send_master_cmd(struct dvb_frontend *fe,
 298         struct dvb_diseqc_master_cmd *diseqc_cmd)
 299 {
 300         struct tda10071_priv *priv = fe->demodulator_priv;
 301         struct tda10071_cmd cmd;
 302         int ret, i;
 303         u8 tmp;
 304
 305         if (!priv->warm) {
 306                 ret = -EFAULT;
 307                 goto error;
 308         }
 309
 310         dev_dbg(&priv->i2c->dev, "%s: msg_len=%d\n", __func__,
 311                         diseqc_cmd->msg_len);
 312
 313         if (diseqc_cmd->msg_len < 3 || diseqc_cmd->msg_len > 6) {
 314                 ret = -EINVAL;
 315                 goto error;
 316         }
 317
 318         /* wait LNB TX */
 319         for (i = 500, tmp = 0; i && !tmp; i--) {
 320                 ret = tda10071_rd_reg_mask(priv, 0x47, &tmp, 0x01);
 321                 if (ret)
 322                         goto error;
 323
 324                 usleep_range(10000, 20000);
 325         }
 326
 327         dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
 328
 329         if (i == 0) {
 330                 ret = -ETIMEDOUT;
 331                 goto error;
 332         }
 333
 334         ret = tda10071_wr_reg_mask(priv, 0x47, 0x00, 0x01);
 335         if (ret)
 336                 goto error;
 337
 338         cmd.args[0] = CMD_LNB_SEND_DISEQC;
 339         cmd.args[1] = 0;
 340         cmd.args[2] = 0;
 341         cmd.args[3] = 0;
 342         cmd.args[4] = 2;
 343         cmd.args[5] = 0;
 344         cmd.args[6] = diseqc_cmd->msg_len;
 345         memcpy(&cmd.args[7], diseqc_cmd->msg, diseqc_cmd->msg_len);
 346         cmd.len = 7 + diseqc_cmd->msg_len;
 347         ret = tda10071_cmd_execute(priv, &cmd);
 348         if (ret)
 349                 goto error;
 350
 351         return ret;
 352 error:
 353         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 354         return ret;
 355 }
 356
 357 static int tda10071_diseqc_recv_slave_reply(struct dvb_frontend *fe,
 358         struct dvb_diseqc_slave_reply *reply)
 359 {
 360         struct tda10071_priv *priv = fe->demodulator_priv;
 361         struct tda10071_cmd cmd;
 362         int ret, i;
 363         u8 tmp;
 364
 365         if (!priv->warm) {
 366                 ret = -EFAULT;
 367                 goto error;
 368         }
 369
 370         dev_dbg(&priv->i2c->dev, "%s:\n", __func__);
 371
 372         /* wait LNB RX */
 373         for (i = 500, tmp = 0; i && !tmp; i--) {
 374                 ret = tda10071_rd_reg_mask(priv, 0x47, &tmp, 0x02);
 375                 if (ret)
 376                         goto error;
 377
 378                 usleep_range(10000, 20000);
 379         }
 380
 381         dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
 382
 383         if (i == 0) {
 384                 ret = -ETIMEDOUT;
 385                 goto error;
 386         }
 387
 388         /* reply len */
 389         ret = tda10071_rd_reg(priv, 0x46, &tmp);
 390         if (ret)
 391                 goto error;
 392
 393         reply->msg_len = tmp & 0x1f; /* [4:0] */
 394         if (reply->msg_len > sizeof(reply->msg))
 395                 reply->msg_len = sizeof(reply->msg); /* truncate API max */
 396
 397         /* read reply */
 398         cmd.args[0] = CMD_LNB_UPDATE_REPLY;
 399         cmd.args[1] = 0;
 400         cmd.len = 2;
 401         ret = tda10071_cmd_execute(priv, &cmd);
 402         if (ret)
 403                 goto error;
 404
 405         ret = tda10071_rd_regs(priv, cmd.len, reply->msg, reply->msg_len);
 406         if (ret)
 407                 goto error;
 408
 409         return ret;
 410 error:
 411         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 412         return ret;
 413 }
 414
 415 static int tda10071_diseqc_send_burst(struct dvb_frontend *fe,
 416         fe_sec_mini_cmd_t fe_sec_mini_cmd)
 417 {
 418         struct tda10071_priv *priv = fe->demodulator_priv;
 419         struct tda10071_cmd cmd;
 420         int ret, i;
 421         u8 tmp, burst;
 422
 423         if (!priv->warm) {
 424                 ret = -EFAULT;
 425                 goto error;
 426         }
 427
 428         dev_dbg(&priv->i2c->dev, "%s: fe_sec_mini_cmd=%d\n", __func__,
 429                         fe_sec_mini_cmd);
 430
 431         switch (fe_sec_mini_cmd) {
 432         case SEC_MINI_A:
 433                 burst = 0;
 434                 break;
 435         case SEC_MINI_B:
 436                 burst = 1;
 437                 break;
 438         default:
 439                 dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_mini_cmd\n",
 440                                 __func__);
 441                 ret = -EINVAL;
 442                 goto error;
 443         }
 444
 445         /* wait LNB TX */
 446         for (i = 500, tmp = 0; i && !tmp; i--) {
 447                 ret = tda10071_rd_reg_mask(priv, 0x47, &tmp, 0x01);
 448                 if (ret)
 449                         goto error;
 450
 451                 usleep_range(10000, 20000);
 452         }
 453
 454         dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
 455
 456         if (i == 0) {
 457                 ret = -ETIMEDOUT;
 458                 goto error;
 459         }
 460
 461         ret = tda10071_wr_reg_mask(priv, 0x47, 0x00, 0x01);
 462         if (ret)
 463                 goto error;
 464
 465         cmd.args[0] = CMD_LNB_SEND_TONEBURST;
 466         cmd.args[1] = 0;
 467         cmd.args[2] = burst;
 468         cmd.len = 3;
 469         ret = tda10071_cmd_execute(priv, &cmd);
 470         if (ret)
 471                 goto error;
 472
 473         return ret;
 474 error:
 475         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 476         return ret;
 477 }
 478
 479 static int tda10071_read_status(struct dvb_frontend *fe, fe_status_t *status)
 480 {
 481         struct tda10071_priv *priv = fe->demodulator_priv;
 482         int ret;
 483         u8 tmp;
 484
 485         *status = 0;
 486
 487         if (!priv->warm) {
 488                 ret = 0;
 489                 goto error;
 490         }
 491
 492         ret = tda10071_rd_reg(priv, 0x39, &tmp);
 493         if (ret)
 494                 goto error;
 495
 496         /* 0x39[0] tuner PLL */
 497         if (tmp & 0x02) /* demod PLL */
 498                 *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER;
 499         if (tmp & 0x04) /* viterbi or LDPC*/
 500                 *status |= FE_HAS_VITERBI;
 501         if (tmp & 0x08) /* RS or BCH */
 502                 *status |= FE_HAS_SYNC | FE_HAS_LOCK;
 503
 504         priv->fe_status = *status;
 505
 506         return ret;
 507 error:
 508         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 509         return ret;
 510 }
 511
 512 static int tda10071_read_snr(struct dvb_frontend *fe, u16 *snr)
 513 {
 514         struct tda10071_priv *priv = fe->demodulator_priv;
 515         int ret;
 516         u8 buf[2];
 517
 518         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
 519                 *snr = 0;
 520                 ret = 0;
 521                 goto error;
 522         }
 523
 524         ret = tda10071_rd_regs(priv, 0x3a, buf, 2);
 525         if (ret)
 526                 goto error;
 527
 528         /* Es/No dBx10 */
 529         *snr = buf[0] << 8 | buf[1];
 530
 531         return ret;
 532 error:
 533         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 534         return ret;
 535 }
 536
 537 static int tda10071_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
 538 {
 539         struct tda10071_priv *priv = fe->demodulator_priv;
 540         struct tda10071_cmd cmd;
 541         int ret;
 542         u8 tmp;
 543
 544         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
 545                 *strength = 0;
 546                 ret = 0;
 547                 goto error;
 548         }
 549
 550         cmd.args[0] = CMD_GET_AGCACC;
 551         cmd.args[1] = 0;
 552         cmd.len = 2;
 553         ret = tda10071_cmd_execute(priv, &cmd);
 554         if (ret)
 555                 goto error;
 556
 557         /* input power estimate dBm */
 558         ret = tda10071_rd_reg(priv, 0x50, &tmp);
 559         if (ret)
 560                 goto error;
 561
 562         if (tmp < 181)
 563                 tmp = 181; /* -75 dBm */
 564         else if (tmp > 236)
 565                 tmp = 236; /* -20 dBm */
 566
 567         /* scale value to 0x0000-0xffff */
 568         *strength = (tmp-181) * 0xffff / (236-181);
 569
 570         return ret;
 571 error:
 572         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 573         return ret;
 574 }
 575
 576 static int tda10071_read_ber(struct dvb_frontend *fe, u32 *ber)
 577 {
 578         struct tda10071_priv *priv = fe->demodulator_priv;
 579         struct tda10071_cmd cmd;
 580         int ret, i, len;
 581         u8 tmp, reg, buf[8];
 582
 583         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
 584                 *ber = priv->ber = 0;
 585                 ret = 0;
 586                 goto error;
 587         }
 588
 589         switch (priv->delivery_system) {
 590         case SYS_DVBS:
 591                 reg = 0x4c;
 592                 len = 8;
 593                 i = 1;
 594                 break;
 595         case SYS_DVBS2:
 596                 reg = 0x4d;
 597                 len = 4;
 598                 i = 0;
 599                 break;
 600         default:
 601                 *ber = priv->ber = 0;
 602                 return 0;
 603         }
 604
 605         ret = tda10071_rd_reg(priv, reg, &tmp);
 606         if (ret)
 607                 goto error;
 608
 609         if (priv->meas_count[i] == tmp) {
 610                 dev_dbg(&priv->i2c->dev, "%s: meas not ready=%02x\n", __func__,
 611                                 tmp);
 612                 *ber = priv->ber;
 613                 return 0;
 614         } else {
 615                 priv->meas_count[i] = tmp;
 616         }
 617
 618         cmd.args[0] = CMD_BER_UPDATE_COUNTERS;
 619         cmd.args[1] = 0;
 620         cmd.args[2] = i;
 621         cmd.len = 3;
 622         ret = tda10071_cmd_execute(priv, &cmd);
 623         if (ret)
 624                 goto error;
 625
 626         ret = tda10071_rd_regs(priv, cmd.len, buf, len);
 627         if (ret)
 628                 goto error;
 629
 630         if (priv->delivery_system == SYS_DVBS) {
 631                 *ber = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
 632                 priv->ucb += (buf[4] << 8) | buf[5];
 633         } else {
 634                 *ber = (buf[0] << 8) | buf[1];
 635         }
 636         priv->ber = *ber;
 637
 638         return ret;
 639 error:
 640         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 641         return ret;
 642 }
 643
 644 static int tda10071_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
 645 {
 646         struct tda10071_priv *priv = fe->demodulator_priv;
 647         int ret = 0;
 648
 649         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
 650                 *ucblocks = 0;
 651                 goto error;
 652         }
 653
 654         /* UCB is updated when BER is read. Assume BER is read anyway. */
 655
 656         *ucblocks = priv->ucb;
 657
 658         return ret;
 659 error:
 660         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 661         return ret;
 662 }
 663
 664 static int tda10071_set_frontend(struct dvb_frontend *fe)
 665 {
 666         struct tda10071_priv *priv = fe->demodulator_priv;
 667         struct tda10071_cmd cmd;
 668         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 669         int ret, i;
 670         u8 mode, rolloff, pilot, inversion, div;
 671         fe_modulation_t modulation;
 672
 673         dev_dbg(&priv->i2c->dev,
 674                         "%s: delivery_system=%d modulation=%d frequency=%d symbol_rate=%d inversion=%d pilot=%d rolloff=%d\n",
 675                         __func__, c->delivery_system, c->modulation,
 676                         c->frequency, c->symbol_rate, c->inversion, c->pilot,
 677                         c->rolloff);
 678
 679         priv->delivery_system = SYS_UNDEFINED;
 680
 681         if (!priv->warm) {
 682                 ret = -EFAULT;
 683                 goto error;
 684         }
 685
 686         switch (c->inversion) {
 687         case INVERSION_OFF:
 688                 inversion = 1;
 689                 break;
 690         case INVERSION_ON:
 691                 inversion = 0;
 692                 break;
 693         case INVERSION_AUTO:
 694                 /* 2 = auto; try first on then off
 695                  * 3 = auto; try first off then on */
 696                 inversion = 3;
 697                 break;
 698         default:
 699                 dev_dbg(&priv->i2c->dev, "%s: invalid inversion\n", __func__);
 700                 ret = -EINVAL;
 701                 goto error;
 702         }
 703
 704         switch (c->delivery_system) {
 705         case SYS_DVBS:
 706                 modulation = QPSK;
 707                 rolloff = 0;
 708                 pilot = 2;
 709                 break;
 710         case SYS_DVBS2:
 711                 modulation = c->modulation;
 712
 713                 switch (c->rolloff) {
 714                 case ROLLOFF_20:
 715                         rolloff = 2;
 716                         break;
 717                 case ROLLOFF_25:
 718                         rolloff = 1;
 719                         break;
 720                 case ROLLOFF_35:
 721                         rolloff = 0;
 722                         break;
 723                 case ROLLOFF_AUTO:
 724                 default:
 725                         dev_dbg(&priv->i2c->dev, "%s: invalid rolloff\n",
 726                                         __func__);
 727                         ret = -EINVAL;
 728                         goto error;
 729                 }
 730
 731                 switch (c->pilot) {
 732                 case PILOT_OFF:
 733                         pilot = 0;
 734                         break;
 735                 case PILOT_ON:
 736                         pilot = 1;
 737                         break;
 738                 case PILOT_AUTO:
 739                         pilot = 2;
 740                         break;
 741                 default:
 742                         dev_dbg(&priv->i2c->dev, "%s: invalid pilot\n",
 743                                         __func__);
 744                         ret = -EINVAL;
 745                         goto error;
 746                 }
 747                 break;
 748         default:
 749                 dev_dbg(&priv->i2c->dev, "%s: invalid delivery_system\n",
 750                                 __func__);
 751                 ret = -EINVAL;
 752                 goto error;
 753         }
 754
 755         for (i = 0, mode = 0xff; i < ARRAY_SIZE(TDA10071_MODCOD); i++) {
 756                 if (c->delivery_system == TDA10071_MODCOD[i].delivery_system &&
 757                         modulation == TDA10071_MODCOD[i].modulation &&
 758                         c->fec_inner == TDA10071_MODCOD[i].fec) {
 759                         mode = TDA10071_MODCOD[i].val;
 760                         dev_dbg(&priv->i2c->dev, "%s: mode found=%02x\n",
 761                                         __func__, mode);
 762                         break;
 763                 }
 764         }
 765
 766         if (mode == 0xff) {
 767                 dev_dbg(&priv->i2c->dev, "%s: invalid parameter combination\n",
 768                                 __func__);
 769                 ret = -EINVAL;
 770                 goto error;
 771         }
 772
 773         if (c->symbol_rate <= 5000000)
 774                 div = 14;
 775         else
 776                 div = 4;
 777
 778         ret = tda10071_wr_reg(priv, 0x81, div);
 779         if (ret)
 780                 goto error;
 781
 782         ret = tda10071_wr_reg(priv, 0xe3, div);
 783         if (ret)
 784                 goto error;
 785
 786         cmd.args[0] = CMD_CHANGE_CHANNEL;
 787         cmd.args[1] = 0;
 788         cmd.args[2] = mode;
 789         cmd.args[3] = (c->frequency >> 16) & 0xff;
 790         cmd.args[4] = (c->frequency >>  8) & 0xff;
 791         cmd.args[5] = (c->frequency >>  0) & 0xff;
 792         cmd.args[6] = ((c->symbol_rate / 1000) >> 8) & 0xff;
 793         cmd.args[7] = ((c->symbol_rate / 1000) >> 0) & 0xff;
 794         cmd.args[8] = (tda10071_ops.info.frequency_tolerance >> 8) & 0xff;
 795         cmd.args[9] = (tda10071_ops.info.frequency_tolerance >> 0) & 0xff;
 796         cmd.args[10] = rolloff;
 797         cmd.args[11] = inversion;
 798         cmd.args[12] = pilot;
 799         cmd.args[13] = 0x00;
 800         cmd.args[14] = 0x00;
 801         cmd.len = 15;
 802         ret = tda10071_cmd_execute(priv, &cmd);
 803         if (ret)
 804                 goto error;
 805
 806         priv->delivery_system = c->delivery_system;
 807
 808         return ret;
 809 error:
 810         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 811         return ret;
 812 }
 813
 814 static int tda10071_get_frontend(struct dvb_frontend *fe)
 815 {
 816         struct tda10071_priv *priv = fe->demodulator_priv;
 817         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 818         int ret, i;
 819         u8 buf[5], tmp;
 820
 821         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
 822                 ret = -EFAULT;
 823                 goto error;
 824         }
 825
 826         ret = tda10071_rd_regs(priv, 0x30, buf, 5);
 827         if (ret)
 828                 goto error;
 829
 830         tmp = buf[0] & 0x3f;
 831         for (i = 0; i < ARRAY_SIZE(TDA10071_MODCOD); i++) {
 832                 if (tmp == TDA10071_MODCOD[i].val) {
 833                         c->modulation = TDA10071_MODCOD[i].modulation;
 834                         c->fec_inner = TDA10071_MODCOD[i].fec;
 835                         c->delivery_system = TDA10071_MODCOD[i].delivery_system;
 836                 }
 837         }
 838
 839         switch ((buf[1] >> 0) & 0x01) {
 840         case 0:
 841                 c->inversion = INVERSION_ON;
 842                 break;
 843         case 1:
 844                 c->inversion = INVERSION_OFF;
 845                 break;
 846         }
 847
 848         switch ((buf[1] >> 7) & 0x01) {
 849         case 0:
 850                 c->pilot = PILOT_OFF;
 851                 break;
 852         case 1:
 853                 c->pilot = PILOT_ON;
 854                 break;
 855         }
 856
 857         c->frequency = (buf[2] << 16) | (buf[3] << 8) | (buf[4] << 0);
 858
 859         ret = tda10071_rd_regs(priv, 0x52, buf, 3);
 860         if (ret)
 861                 goto error;
 862
 863         c->symbol_rate = ((buf[0] << 16) | (buf[1] << 8) | (buf[2] << 0)) * 1000;
 864
 865         return ret;
 866 error:
 867         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
 868         return ret;
 869 }
 870
 871 static int tda10071_init(struct dvb_frontend *fe)
 872 {
 873         struct tda10071_priv *priv = fe->demodulator_priv;
 874         struct tda10071_cmd cmd;
 875         int ret, i, len, remaining, fw_size;
 876         const struct firmware *fw;
 877         u8 *fw_file = TDA10071_FIRMWARE;
 878         u8 tmp, buf[4];
 879         struct tda10071_reg_val_mask tab[] = {
 880                 { 0xcd, 0x00, 0x07 },
 881                 { 0x80, 0x00, 0x02 },
 882                 { 0xcd, 0x00, 0xc0 },
 883                 { 0xce, 0x00, 0x1b },
 884                 { 0x9d, 0x00, 0x01 },
 885                 { 0x9d, 0x00, 0x02 },
 886                 { 0x9e, 0x00, 0x01 },
 887                 { 0x87, 0x00, 0x80 },
 888                 { 0xce, 0x00, 0x08 },
 889                 { 0xce, 0x00, 0x10 },
 890         };
 891         struct tda10071_reg_val_mask tab2[] = {
 892                 { 0xf1, 0x70, 0xff },
 893                 { 0x88, priv->cfg.pll_multiplier, 0x3f },
 894                 { 0x89, 0x00, 0x10 },
 895                 { 0x89, 0x10, 0x10 },
 896                 { 0xc0, 0x01, 0x01 },
 897                 { 0xc0, 0x00, 0x01 },
 898                 { 0xe0, 0xff, 0xff },
 899                 { 0xe0, 0x00, 0xff },
 900                 { 0x96, 0x1e, 0x7e },
 901                 { 0x8b, 0x08, 0x08 },
 902                 { 0x8b, 0x00, 0x08 },
 903                 { 0x8f, 0x1a, 0x7e },
 904                 { 0x8c, 0x68, 0xff },
 905                 { 0x8d, 0x08, 0xff },
 906                 { 0x8e, 0x4c, 0xff },
 907                 { 0x8f, 0x01, 0x01 },
 908                 { 0x8b, 0x04, 0x04 },
 909                 { 0x8b, 0x00, 0x04 },
 910                 { 0x87, 0x05, 0x07 },
 911                 { 0x80, 0x00, 0x20 },
 912                 { 0xc8, 0x01, 0xff },
 913                 { 0xb4, 0x47, 0xff },
 914                 { 0xb5, 0x9c, 0xff },
 915                 { 0xb6, 0x7d, 0xff },
 916                 { 0xba, 0x00, 0x03 },
 917                 { 0xb7, 0x47, 0xff },
 918                 { 0xb8, 0x9c, 0xff },
 919                 { 0xb9, 0x7d, 0xff },
 920                 { 0xba, 0x00, 0x0c },
 921                 { 0xc8, 0x00, 0xff },
 922                 { 0xcd, 0x00, 0x04 },
 923                 { 0xcd, 0x00, 0x20 },
 924                 { 0xe8, 0x02, 0xff },
 925                 { 0xcf, 0x20, 0xff },
 926                 { 0x9b, 0xd7, 0xff },
 927                 { 0x9a, 0x01, 0x03 },
 928                 { 0xa8, 0x05, 0x0f },
 929                 { 0xa8, 0x65, 0xf0 },
 930                 { 0xa6, 0xa0, 0xf0 },
 931                 { 0x9d, 0x50, 0xfc },
 932                 { 0x9e, 0x20, 0xe0 },
 933                 { 0xa3, 0x1c, 0x7c },
 934                 { 0xd5, 0x03, 0x03 },
 935         };
 936
 937         if (priv->warm) {
 938                 /* warm state - wake up device from sleep */
 939
 940                 for (i = 0; i < ARRAY_SIZE(tab); i++) {
 941                         ret = tda10071_wr_reg_mask(priv, tab[i].reg,
 942                                 tab[i].val, tab[i].mask);
 943                         if (ret)
 944                                 goto error;
 945                 }
 946
 947                 cmd.args[0] = CMD_SET_SLEEP_MODE;
 948                 cmd.args[1] = 0;
 949                 cmd.args[2] = 0;
 950                 cmd.len = 3;
 951                 ret = tda10071_cmd_execute(priv, &cmd);
 952                 if (ret)
 953                         goto error;
 954         } else {
 955                 /* cold state - try to download firmware */
 956
 957                 /* request the firmware, this will block and timeout */
 958                 ret = request_firmware(&fw, fw_file, priv->i2c->dev.parent);
 959                 if (ret) {
 960                         dev_err(&priv->i2c->dev,
 961                                         "%s: did not find the firmware file. (%s) Please see linux/Documentation/dvb/ for more details on firmware-problems. (%d)\n",
 962                                         KBUILD_MODNAME, fw_file, ret);
 963                         goto error;
 964                 }
 965
 966                 /* init */
 967                 for (i = 0; i < ARRAY_SIZE(tab2); i++) {
 968                         ret = tda10071_wr_reg_mask(priv, tab2[i].reg,
 969                                 tab2[i].val, tab2[i].mask);
 970                         if (ret)
 971                                 goto error_release_firmware;
 972                 }
 973
 974                 /*  download firmware */
 975                 ret = tda10071_wr_reg(priv, 0xe0, 0x7f);
 976                 if (ret)
 977                         goto error_release_firmware;
 978
 979                 ret = tda10071_wr_reg(priv, 0xf7, 0x81);
 980                 if (ret)
 981                         goto error_release_firmware;
 982
 983                 ret = tda10071_wr_reg(priv, 0xf8, 0x00);
 984                 if (ret)
 985                         goto error_release_firmware;
 986
 987                 ret = tda10071_wr_reg(priv, 0xf9, 0x00);
 988                 if (ret)
 989                         goto error_release_firmware;
 990
 991                 dev_info(&priv->i2c->dev,
 992                                 "%s: found a '%s' in cold state, will try to load a firmware\n",
 993                                 KBUILD_MODNAME, tda10071_ops.info.name);
 994                 dev_info(&priv->i2c->dev,
 995                                 "%s: downloading firmware from file '%s'\n",
 996                                 KBUILD_MODNAME, fw_file);
 997
 998                 /* do not download last byte */
 999                 fw_size = fw->size - 1;
1000
1001                 for (remaining = fw_size; remaining > 0;
1002                         remaining -= (priv->cfg.i2c_wr_max - 1)) {
1003                         len = remaining;
1004                         if (len > (priv->cfg.i2c_wr_max - 1))
1005                                 len = (priv->cfg.i2c_wr_max - 1);
1006
1007                         ret = tda10071_wr_regs(priv, 0xfa,
1008                                 (u8 *) &fw->data[fw_size - remaining], len);
1009                         if (ret) {
1010                                 dev_err(&priv->i2c->dev,
1011                                                 "%s: firmware download failed=%d\n",
1012                                                 KBUILD_MODNAME, ret);
1013                                 goto error_release_firmware;
1014                         }
1015                 }
1016                 release_firmware(fw);
1017
1018                 ret = tda10071_wr_reg(priv, 0xf7, 0x0c);
1019                 if (ret)
1020                         goto error;
1021
1022                 ret = tda10071_wr_reg(priv, 0xe0, 0x00);
1023                 if (ret)
1024                         goto error;
1025
1026                 /* wait firmware start */
1027                 msleep(250);
1028
1029                 /* firmware status */
1030                 ret = tda10071_rd_reg(priv, 0x51, &tmp);
1031                 if (ret)
1032                         goto error;
1033
1034                 if (tmp) {
1035                         dev_info(&priv->i2c->dev, "%s: firmware did not run\n",
1036                                         KBUILD_MODNAME);
1037                         ret = -EFAULT;
1038                         goto error;
1039                 } else {
1040                         priv->warm = 1;
1041                 }
1042
1043                 cmd.args[0] = CMD_GET_FW_VERSION;
1044                 cmd.len = 1;
1045                 ret = tda10071_cmd_execute(priv, &cmd);
1046                 if (ret)
1047                         goto error;
1048
1049                 ret = tda10071_rd_regs(priv, cmd.len, buf, 4);
1050                 if (ret)
1051                         goto error;
1052
1053                 dev_info(&priv->i2c->dev, "%s: firmware version %d.%d.%d.%d\n",
1054                                 KBUILD_MODNAME, buf[0], buf[1], buf[2], buf[3]);
1055                 dev_info(&priv->i2c->dev, "%s: found a '%s' in warm state\n",
1056                                 KBUILD_MODNAME, tda10071_ops.info.name);
1057
1058                 ret = tda10071_rd_regs(priv, 0x81, buf, 2);
1059                 if (ret)
1060                         goto error;
1061
1062                 cmd.args[0] = CMD_DEMOD_INIT;
1063                 cmd.args[1] = ((priv->cfg.xtal / 1000) >> 8) & 0xff;
1064                 cmd.args[2] = ((priv->cfg.xtal / 1000) >> 0) & 0xff;
1065                 cmd.args[3] = buf[0];
1066                 cmd.args[4] = buf[1];
1067                 cmd.args[5] = priv->cfg.pll_multiplier;
1068                 cmd.args[6] = priv->cfg.spec_inv;
1069                 cmd.args[7] = 0x00;
1070                 cmd.len = 8;
1071                 ret = tda10071_cmd_execute(priv, &cmd);
1072                 if (ret)
1073                         goto error;
1074
1075                 if (priv->cfg.tuner_i2c_addr)
1076                         tmp = priv->cfg.tuner_i2c_addr;
1077                 else
1078                         tmp = 0x14;
1079
1080                 cmd.args[0] = CMD_TUNER_INIT;
1081                 cmd.args[1] = 0x00;
1082                 cmd.args[2] = 0x00;
1083                 cmd.args[3] = 0x00;
1084                 cmd.args[4] = 0x00;
1085                 cmd.args[5] = tmp;
1086                 cmd.args[6] = 0x00;
1087                 cmd.args[7] = 0x03;
1088                 cmd.args[8] = 0x02;
1089                 cmd.args[9] = 0x02;
1090                 cmd.args[10] = 0x00;
1091                 cmd.args[11] = 0x00;
1092                 cmd.args[12] = 0x00;
1093                 cmd.args[13] = 0x00;
1094                 cmd.args[14] = 0x00;
1095                 cmd.len = 15;
1096                 ret = tda10071_cmd_execute(priv, &cmd);
1097                 if (ret)
1098                         goto error;
1099
1100                 cmd.args[0] = CMD_MPEG_CONFIG;
1101                 cmd.args[1] = 0;
1102                 cmd.args[2] = priv->cfg.ts_mode;
1103                 cmd.args[3] = 0x00;
1104                 cmd.args[4] = 0x04;
1105                 cmd.args[5] = 0x00;
1106                 cmd.len = 6;
1107                 ret = tda10071_cmd_execute(priv, &cmd);
1108                 if (ret)
1109                         goto error;
1110
1111                 ret = tda10071_wr_reg_mask(priv, 0xf0, 0x01, 0x01);
1112                 if (ret)
1113                         goto error;
1114
1115                 cmd.args[0] = CMD_LNB_CONFIG;
1116                 cmd.args[1] = 0;
1117                 cmd.args[2] = 150;
1118                 cmd.args[3] = 3;
1119                 cmd.args[4] = 22;
1120                 cmd.args[5] = 1;
1121                 cmd.args[6] = 1;
1122                 cmd.args[7] = 30;
1123                 cmd.args[8] = 30;
1124                 cmd.args[9] = 30;
1125                 cmd.args[10] = 30;
1126                 cmd.len = 11;
1127                 ret = tda10071_cmd_execute(priv, &cmd);
1128                 if (ret)
1129                         goto error;
1130
1131                 cmd.args[0] = CMD_BER_CONTROL;
1132                 cmd.args[1] = 0;
1133                 cmd.args[2] = 14;
1134                 cmd.args[3] = 14;
1135                 cmd.len = 4;
1136                 ret = tda10071_cmd_execute(priv, &cmd);
1137                 if (ret)
1138                         goto error;
1139         }
1140
1141         return ret;
1142 error_release_firmware:
1143         release_firmware(fw);
1144 error:
1145         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
1146         return ret;
1147 }
1148
1149 static int tda10071_sleep(struct dvb_frontend *fe)
1150 {
1151         struct tda10071_priv *priv = fe->demodulator_priv;
1152         struct tda10071_cmd cmd;
1153         int ret, i;
1154         struct tda10071_reg_val_mask tab[] = {
1155                 { 0xcd, 0x07, 0x07 },
1156                 { 0x80, 0x02, 0x02 },
1157                 { 0xcd, 0xc0, 0xc0 },
1158                 { 0xce, 0x1b, 0x1b },
1159                 { 0x9d, 0x01, 0x01 },
1160                 { 0x9d, 0x02, 0x02 },
1161                 { 0x9e, 0x01, 0x01 },
1162                 { 0x87, 0x80, 0x80 },
1163                 { 0xce, 0x08, 0x08 },
1164                 { 0xce, 0x10, 0x10 },
1165         };
1166
1167         if (!priv->warm) {
1168                 ret = -EFAULT;
1169                 goto error;
1170         }
1171
1172         cmd.args[0] = CMD_SET_SLEEP_MODE;
1173         cmd.args[1] = 0;
1174         cmd.args[2] = 1;
1175         cmd.len = 3;
1176         ret = tda10071_cmd_execute(priv, &cmd);
1177         if (ret)
1178                 goto error;
1179
1180         for (i = 0; i < ARRAY_SIZE(tab); i++) {
1181                 ret = tda10071_wr_reg_mask(priv, tab[i].reg, tab[i].val,
1182                         tab[i].mask);
1183                 if (ret)
1184                         goto error;
1185         }
1186
1187         return ret;
1188 error:
1189         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
1190         return ret;
1191 }
1192
1193 static int tda10071_get_tune_settings(struct dvb_frontend *fe,
1194         struct dvb_frontend_tune_settings *s)
1195 {
1196         s->min_delay_ms = 8000;
1197         s->step_size = 0;
1198         s->max_drift = 0;
1199
1200         return 0;
1201 }
1202
1203 static void tda10071_release(struct dvb_frontend *fe)
1204 {
1205         struct tda10071_priv *priv = fe->demodulator_priv;
1206         kfree(priv);
1207 }
1208
1209 struct dvb_frontend *tda10071_attach(const struct tda10071_config *config,
1210         struct i2c_adapter *i2c)
1211 {
1212         int ret;
1213         struct tda10071_priv *priv = NULL;
1214         u8 tmp;
1215
1216         /* allocate memory for the internal priv */
1217         priv = kzalloc(sizeof(struct tda10071_priv), GFP_KERNEL);
1218         if (priv == NULL) {
1219                 ret = -ENOMEM;
1220                 goto error;
1221         }
1222
1223         /* make sure demod i2c address is specified */
1224         if (!config->demod_i2c_addr) {
1225                 dev_dbg(&i2c->dev, "%s: invalid demod i2c address\n", __func__);
1226                 ret = -EINVAL;
1227                 goto error;
1228         }
1229
1230         /* make sure tuner i2c address is specified */
1231         if (!config->tuner_i2c_addr) {
1232                 dev_dbg(&i2c->dev, "%s: invalid tuner i2c address\n", __func__);
1233                 ret = -EINVAL;
1234                 goto error;
1235         }
1236
1237         /* setup the priv */
1238         priv->i2c = i2c;
1239         memcpy(&priv->cfg, config, sizeof(struct tda10071_config));
1240
1241         /* chip ID */
1242         ret = tda10071_rd_reg(priv, 0xff, &tmp);
1243         if (ret || tmp != 0x0f)
1244                 goto error;
1245
1246         /* chip type */
1247         ret = tda10071_rd_reg(priv, 0xdd, &tmp);
1248         if (ret || tmp != 0x00)
1249                 goto error;
1250
1251         /* chip version */
1252         ret = tda10071_rd_reg(priv, 0xfe, &tmp);
1253         if (ret || tmp != 0x01)
1254                 goto error;
1255
1256         /* create dvb_frontend */
1257         memcpy(&priv->fe.ops, &tda10071_ops, sizeof(struct dvb_frontend_ops));
1258         priv->fe.demodulator_priv = priv;
1259
1260         return &priv->fe;
1261 error:
1262         dev_dbg(&i2c->dev, "%s: failed=%d\n", __func__, ret);
1263         kfree(priv);
1264         return NULL;
1265 }
1266 EXPORT_SYMBOL(tda10071_attach);
1267
1268 static struct dvb_frontend_ops tda10071_ops = {
1269         .delsys = { SYS_DVBS, SYS_DVBS2 },
1270         .info = {
1271                 .name = "NXP TDA10071",
1272                 .frequency_min = 950000,
1273                 .frequency_max = 2150000,
1274                 .frequency_tolerance = 5000,
1275                 .symbol_rate_min = 1000000,
1276                 .symbol_rate_max = 45000000,
1277                 .caps = FE_CAN_INVERSION_AUTO |
1278                         FE_CAN_FEC_1_2 |
1279                         FE_CAN_FEC_2_3 |
1280                         FE_CAN_FEC_3_4 |
1281                         FE_CAN_FEC_4_5 |
1282                         FE_CAN_FEC_5_6 |
1283                         FE_CAN_FEC_6_7 |
1284                         FE_CAN_FEC_7_8 |
1285                         FE_CAN_FEC_8_9 |
1286                         FE_CAN_FEC_AUTO |
1287                         FE_CAN_QPSK |
1288                         FE_CAN_RECOVER |
1289                         FE_CAN_2G_MODULATION
1290         },
1291
1292         .release = tda10071_release,
1293
1294         .get_tune_settings = tda10071_get_tune_settings,
1295
1296         .init = tda10071_init,
1297         .sleep = tda10071_sleep,
1298
1299         .set_frontend = tda10071_set_frontend,
1300         .get_frontend = tda10071_get_frontend,
1301
1302         .read_status = tda10071_read_status,
1303         .read_snr = tda10071_read_snr,
1304         .read_signal_strength = tda10071_read_signal_strength,
1305         .read_ber = tda10071_read_ber,
1306         .read_ucblocks = tda10071_read_ucblocks,
1307
1308         .diseqc_send_master_cmd = tda10071_diseqc_send_master_cmd,
1309         .diseqc_recv_slave_reply = tda10071_diseqc_recv_slave_reply,
1310         .diseqc_send_burst = tda10071_diseqc_send_burst,
1311
1312         .set_tone = tda10071_set_tone,
1313         .set_voltage = tda10071_set_voltage,
1314 };
1315
1316 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1317 MODULE_DESCRIPTION("NXP TDA10071 DVB-S/S2 demodulator driver");
1318 MODULE_LICENSE("GPL");
1319 MODULE_FIRMWARE(TDA10071_FIRMWARE);