linux/drivers/media/dvb-frontends/stv090x.c
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   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3        STV0900/0903 Multistandard Broadcast Frontend driver
   4        Copyright (C) Manu Abraham <abraham.manu@gmail.com>
   5
   6        Copyright (C) ST Microelectronics
   7
   8*/
   9
  10#include <linux/init.h>
  11#include <linux/kernel.h>
  12#include <linux/module.h>
  13#include <linux/string.h>
  14#include <linux/slab.h>
  15#include <linux/mutex.h>
  16
  17#include <linux/dvb/frontend.h>
  18#include <media/dvb_frontend.h>
  19
  20#include "stv6110x.h" /* for demodulator internal modes */
  21
  22#include "stv090x_reg.h"
  23#include "stv090x.h"
  24#include "stv090x_priv.h"
  25
  26/* Max transfer size done by I2C transfer functions */
  27#define MAX_XFER_SIZE  64
  28
  29static unsigned int verbose;
  30module_param(verbose, int, 0644);
  31
  32/* internal params node */
  33struct stv090x_dev {
  34        /* pointer for internal params, one for each pair of demods */
  35        struct stv090x_internal         *internal;
  36        struct stv090x_dev              *next_dev;
  37};
  38
  39/* first internal params */
  40static struct stv090x_dev *stv090x_first_dev;
  41
  42/* find chip by i2c adapter and i2c address */
  43static struct stv090x_dev *find_dev(struct i2c_adapter *i2c_adap,
  44                                        u8 i2c_addr)
  45{
  46        struct stv090x_dev *temp_dev = stv090x_first_dev;
  47
  48        /*
  49         Search of the last stv0900 chip or
  50         find it by i2c adapter and i2c address */
  51        while ((temp_dev != NULL) &&
  52                ((temp_dev->internal->i2c_adap != i2c_adap) ||
  53                (temp_dev->internal->i2c_addr != i2c_addr))) {
  54
  55                temp_dev = temp_dev->next_dev;
  56        }
  57
  58        return temp_dev;
  59}
  60
  61/* deallocating chip */
  62static void remove_dev(struct stv090x_internal *internal)
  63{
  64        struct stv090x_dev *prev_dev = stv090x_first_dev;
  65        struct stv090x_dev *del_dev = find_dev(internal->i2c_adap,
  66                                                internal->i2c_addr);
  67
  68        if (del_dev != NULL) {
  69                if (del_dev == stv090x_first_dev) {
  70                        stv090x_first_dev = del_dev->next_dev;
  71                } else {
  72                        while (prev_dev->next_dev != del_dev)
  73                                prev_dev = prev_dev->next_dev;
  74
  75                        prev_dev->next_dev = del_dev->next_dev;
  76                }
  77
  78                kfree(del_dev);
  79        }
  80}
  81
  82/* allocating new chip */
  83static struct stv090x_dev *append_internal(struct stv090x_internal *internal)
  84{
  85        struct stv090x_dev *new_dev;
  86        struct stv090x_dev *temp_dev;
  87
  88        new_dev = kmalloc(sizeof(struct stv090x_dev), GFP_KERNEL);
  89        if (new_dev != NULL) {
  90                new_dev->internal = internal;
  91                new_dev->next_dev = NULL;
  92
  93                /* append to list */
  94                if (stv090x_first_dev == NULL) {
  95                        stv090x_first_dev = new_dev;
  96                } else {
  97                        temp_dev = stv090x_first_dev;
  98                        while (temp_dev->next_dev != NULL)
  99                                temp_dev = temp_dev->next_dev;
 100
 101                        temp_dev->next_dev = new_dev;
 102                }
 103        }
 104
 105        return new_dev;
 106}
 107
 108
 109/* DVBS1 and DSS C/N Lookup table */
 110static const struct stv090x_tab stv090x_s1cn_tab[] = {
 111        {   0, 8917 }, /*  0.0dB */
 112        {   5, 8801 }, /*  0.5dB */
 113        {  10, 8667 }, /*  1.0dB */
 114        {  15, 8522 }, /*  1.5dB */
 115        {  20, 8355 }, /*  2.0dB */
 116        {  25, 8175 }, /*  2.5dB */
 117        {  30, 7979 }, /*  3.0dB */
 118        {  35, 7763 }, /*  3.5dB */
 119        {  40, 7530 }, /*  4.0dB */
 120        {  45, 7282 }, /*  4.5dB */
 121        {  50, 7026 }, /*  5.0dB */
 122        {  55, 6781 }, /*  5.5dB */
 123        {  60, 6514 }, /*  6.0dB */
 124        {  65, 6241 }, /*  6.5dB */
 125        {  70, 5965 }, /*  7.0dB */
 126        {  75, 5690 }, /*  7.5dB */
 127        {  80, 5424 }, /*  8.0dB */
 128        {  85, 5161 }, /*  8.5dB */
 129        {  90, 4902 }, /*  9.0dB */
 130        {  95, 4654 }, /*  9.5dB */
 131        { 100, 4417 }, /* 10.0dB */
 132        { 105, 4186 }, /* 10.5dB */
 133        { 110, 3968 }, /* 11.0dB */
 134        { 115, 3757 }, /* 11.5dB */
 135        { 120, 3558 }, /* 12.0dB */
 136        { 125, 3366 }, /* 12.5dB */
 137        { 130, 3185 }, /* 13.0dB */
 138        { 135, 3012 }, /* 13.5dB */
 139        { 140, 2850 }, /* 14.0dB */
 140        { 145, 2698 }, /* 14.5dB */
 141        { 150, 2550 }, /* 15.0dB */
 142        { 160, 2283 }, /* 16.0dB */
 143        { 170, 2042 }, /* 17.0dB */
 144        { 180, 1827 }, /* 18.0dB */
 145        { 190, 1636 }, /* 19.0dB */
 146        { 200, 1466 }, /* 20.0dB */
 147        { 210, 1315 }, /* 21.0dB */
 148        { 220, 1181 }, /* 22.0dB */
 149        { 230, 1064 }, /* 23.0dB */
 150        { 240,  960 }, /* 24.0dB */
 151        { 250,  869 }, /* 25.0dB */
 152        { 260,  792 }, /* 26.0dB */
 153        { 270,  724 }, /* 27.0dB */
 154        { 280,  665 }, /* 28.0dB */
 155        { 290,  616 }, /* 29.0dB */
 156        { 300,  573 }, /* 30.0dB */
 157        { 310,  537 }, /* 31.0dB */
 158        { 320,  507 }, /* 32.0dB */
 159        { 330,  483 }, /* 33.0dB */
 160        { 400,  398 }, /* 40.0dB */
 161        { 450,  381 }, /* 45.0dB */
 162        { 500,  377 }  /* 50.0dB */
 163};
 164
 165/* DVBS2 C/N Lookup table */
 166static const struct stv090x_tab stv090x_s2cn_tab[] = {
 167        { -30, 13348 }, /* -3.0dB */
 168        { -20, 12640 }, /* -2d.0B */
 169        { -10, 11883 }, /* -1.0dB */
 170        {   0, 11101 }, /* -0.0dB */
 171        {   5, 10718 }, /*  0.5dB */
 172        {  10, 10339 }, /*  1.0dB */
 173        {  15,  9947 }, /*  1.5dB */
 174        {  20,  9552 }, /*  2.0dB */
 175        {  25,  9183 }, /*  2.5dB */
 176        {  30,  8799 }, /*  3.0dB */
 177        {  35,  8422 }, /*  3.5dB */
 178        {  40,  8062 }, /*  4.0dB */
 179        {  45,  7707 }, /*  4.5dB */
 180        {  50,  7353 }, /*  5.0dB */
 181        {  55,  7025 }, /*  5.5dB */
 182        {  60,  6684 }, /*  6.0dB */
 183        {  65,  6331 }, /*  6.5dB */
 184        {  70,  6036 }, /*  7.0dB */
 185        {  75,  5727 }, /*  7.5dB */
 186        {  80,  5437 }, /*  8.0dB */
 187        {  85,  5164 }, /*  8.5dB */
 188        {  90,  4902 }, /*  9.0dB */
 189        {  95,  4653 }, /*  9.5dB */
 190        { 100,  4408 }, /* 10.0dB */
 191        { 105,  4187 }, /* 10.5dB */
 192        { 110,  3961 }, /* 11.0dB */
 193        { 115,  3751 }, /* 11.5dB */
 194        { 120,  3558 }, /* 12.0dB */
 195        { 125,  3368 }, /* 12.5dB */
 196        { 130,  3191 }, /* 13.0dB */
 197        { 135,  3017 }, /* 13.5dB */
 198        { 140,  2862 }, /* 14.0dB */
 199        { 145,  2710 }, /* 14.5dB */
 200        { 150,  2565 }, /* 15.0dB */
 201        { 160,  2300 }, /* 16.0dB */
 202        { 170,  2058 }, /* 17.0dB */
 203        { 180,  1849 }, /* 18.0dB */
 204        { 190,  1663 }, /* 19.0dB */
 205        { 200,  1495 }, /* 20.0dB */
 206        { 210,  1349 }, /* 21.0dB */
 207        { 220,  1222 }, /* 22.0dB */
 208        { 230,  1110 }, /* 23.0dB */
 209        { 240,  1011 }, /* 24.0dB */
 210        { 250,   925 }, /* 25.0dB */
 211        { 260,   853 }, /* 26.0dB */
 212        { 270,   789 }, /* 27.0dB */
 213        { 280,   734 }, /* 28.0dB */
 214        { 290,   690 }, /* 29.0dB */
 215        { 300,   650 }, /* 30.0dB */
 216        { 310,   619 }, /* 31.0dB */
 217        { 320,   593 }, /* 32.0dB */
 218        { 330,   571 }, /* 33.0dB */
 219        { 400,   498 }, /* 40.0dB */
 220        { 450,   484 }, /* 45.0dB */
 221        { 500,   481 }  /* 50.0dB */
 222};
 223
 224/* RF level C/N lookup table */
 225static const struct stv090x_tab stv090x_rf_tab[] = {
 226        {  -5, 0xcaa1 }, /*  -5dBm */
 227        { -10, 0xc229 }, /* -10dBm */
 228        { -15, 0xbb08 }, /* -15dBm */
 229        { -20, 0xb4bc }, /* -20dBm */
 230        { -25, 0xad5a }, /* -25dBm */
 231        { -30, 0xa298 }, /* -30dBm */
 232        { -35, 0x98a8 }, /* -35dBm */
 233        { -40, 0x8389 }, /* -40dBm */
 234        { -45, 0x59be }, /* -45dBm */
 235        { -50, 0x3a14 }, /* -50dBm */
 236        { -55, 0x2d11 }, /* -55dBm */
 237        { -60, 0x210d }, /* -60dBm */
 238        { -65, 0xa14f }, /* -65dBm */
 239        { -70, 0x07aa }  /* -70dBm */
 240};
 241
 242
 243static struct stv090x_reg stv0900_initval[] = {
 244
 245        { STV090x_OUTCFG,               0x00 },
 246        { STV090x_MODECFG,              0xff },
 247        { STV090x_AGCRF1CFG,            0x11 },
 248        { STV090x_AGCRF2CFG,            0x13 },
 249        { STV090x_TSGENERAL1X,          0x14 },
 250        { STV090x_TSTTNR2,              0x21 },
 251        { STV090x_TSTTNR4,              0x21 },
 252        { STV090x_P2_DISTXCTL,          0x22 },
 253        { STV090x_P2_F22TX,             0xc0 },
 254        { STV090x_P2_F22RX,             0xc0 },
 255        { STV090x_P2_DISRXCTL,          0x00 },
 256        { STV090x_P2_DMDCFGMD,          0xF9 },
 257        { STV090x_P2_DEMOD,             0x08 },
 258        { STV090x_P2_DMDCFG3,           0xc4 },
 259        { STV090x_P2_CARFREQ,           0xed },
 260        { STV090x_P2_LDT,               0xd0 },
 261        { STV090x_P2_LDT2,              0xb8 },
 262        { STV090x_P2_TMGCFG,            0xd2 },
 263        { STV090x_P2_TMGTHRISE,         0x20 },
 264        { STV090x_P1_TMGCFG,            0xd2 },
 265
 266        { STV090x_P2_TMGTHFALL,         0x00 },
 267        { STV090x_P2_FECSPY,            0x88 },
 268        { STV090x_P2_FSPYDATA,          0x3a },
 269        { STV090x_P2_FBERCPT4,          0x00 },
 270        { STV090x_P2_FSPYBER,           0x10 },
 271        { STV090x_P2_ERRCTRL1,          0x35 },
 272        { STV090x_P2_ERRCTRL2,          0xc1 },
 273        { STV090x_P2_CFRICFG,           0xf8 },
 274        { STV090x_P2_NOSCFG,            0x1c },
 275        { STV090x_P2_DMDTOM,            0x20 },
 276        { STV090x_P2_CORRELMANT,        0x70 },
 277        { STV090x_P2_CORRELABS,         0x88 },
 278        { STV090x_P2_AGC2O,             0x5b },
 279        { STV090x_P2_AGC2REF,           0x38 },
 280        { STV090x_P2_CARCFG,            0xe4 },
 281        { STV090x_P2_ACLC,              0x1A },
 282        { STV090x_P2_BCLC,              0x09 },
 283        { STV090x_P2_CARHDR,            0x08 },
 284        { STV090x_P2_KREFTMG,           0xc1 },
 285        { STV090x_P2_SFRUPRATIO,        0xf0 },
 286        { STV090x_P2_SFRLOWRATIO,       0x70 },
 287        { STV090x_P2_SFRSTEP,           0x58 },
 288        { STV090x_P2_TMGCFG2,           0x01 },
 289        { STV090x_P2_CAR2CFG,           0x26 },
 290        { STV090x_P2_BCLC2S2Q,          0x86 },
 291        { STV090x_P2_BCLC2S28,          0x86 },
 292        { STV090x_P2_SMAPCOEF7,         0x77 },
 293        { STV090x_P2_SMAPCOEF6,         0x85 },
 294        { STV090x_P2_SMAPCOEF5,         0x77 },
 295        { STV090x_P2_TSCFGL,            0x20 },
 296        { STV090x_P2_DMDCFG2,           0x3b },
 297        { STV090x_P2_MODCODLST0,        0xff },
 298        { STV090x_P2_MODCODLST1,        0xff },
 299        { STV090x_P2_MODCODLST2,        0xff },
 300        { STV090x_P2_MODCODLST3,        0xff },
 301        { STV090x_P2_MODCODLST4,        0xff },
 302        { STV090x_P2_MODCODLST5,        0xff },
 303        { STV090x_P2_MODCODLST6,        0xff },
 304        { STV090x_P2_MODCODLST7,        0xcc },
 305        { STV090x_P2_MODCODLST8,        0xcc },
 306        { STV090x_P2_MODCODLST9,        0xcc },
 307        { STV090x_P2_MODCODLSTA,        0xcc },
 308        { STV090x_P2_MODCODLSTB,        0xcc },
 309        { STV090x_P2_MODCODLSTC,        0xcc },
 310        { STV090x_P2_MODCODLSTD,        0xcc },
 311        { STV090x_P2_MODCODLSTE,        0xcc },
 312        { STV090x_P2_MODCODLSTF,        0xcf },
 313        { STV090x_P1_DISTXCTL,          0x22 },
 314        { STV090x_P1_F22TX,             0xc0 },
 315        { STV090x_P1_F22RX,             0xc0 },
 316        { STV090x_P1_DISRXCTL,          0x00 },
 317        { STV090x_P1_DMDCFGMD,          0xf9 },
 318        { STV090x_P1_DEMOD,             0x08 },
 319        { STV090x_P1_DMDCFG3,           0xc4 },
 320        { STV090x_P1_DMDTOM,            0x20 },
 321        { STV090x_P1_CARFREQ,           0xed },
 322        { STV090x_P1_LDT,               0xd0 },
 323        { STV090x_P1_LDT2,              0xb8 },
 324        { STV090x_P1_TMGCFG,            0xd2 },
 325        { STV090x_P1_TMGTHRISE,         0x20 },
 326        { STV090x_P1_TMGTHFALL,         0x00 },
 327        { STV090x_P1_SFRUPRATIO,        0xf0 },
 328        { STV090x_P1_SFRLOWRATIO,       0x70 },
 329        { STV090x_P1_TSCFGL,            0x20 },
 330        { STV090x_P1_FECSPY,            0x88 },
 331        { STV090x_P1_FSPYDATA,          0x3a },
 332        { STV090x_P1_FBERCPT4,          0x00 },
 333        { STV090x_P1_FSPYBER,           0x10 },
 334        { STV090x_P1_ERRCTRL1,          0x35 },
 335        { STV090x_P1_ERRCTRL2,          0xc1 },
 336        { STV090x_P1_CFRICFG,           0xf8 },
 337        { STV090x_P1_NOSCFG,            0x1c },
 338        { STV090x_P1_CORRELMANT,        0x70 },
 339        { STV090x_P1_CORRELABS,         0x88 },
 340        { STV090x_P1_AGC2O,             0x5b },
 341        { STV090x_P1_AGC2REF,           0x38 },
 342        { STV090x_P1_CARCFG,            0xe4 },
 343        { STV090x_P1_ACLC,              0x1A },
 344        { STV090x_P1_BCLC,              0x09 },
 345        { STV090x_P1_CARHDR,            0x08 },
 346        { STV090x_P1_KREFTMG,           0xc1 },
 347        { STV090x_P1_SFRSTEP,           0x58 },
 348        { STV090x_P1_TMGCFG2,           0x01 },
 349        { STV090x_P1_CAR2CFG,           0x26 },
 350        { STV090x_P1_BCLC2S2Q,          0x86 },
 351        { STV090x_P1_BCLC2S28,          0x86 },
 352        { STV090x_P1_SMAPCOEF7,         0x77 },
 353        { STV090x_P1_SMAPCOEF6,         0x85 },
 354        { STV090x_P1_SMAPCOEF5,         0x77 },
 355        { STV090x_P1_DMDCFG2,           0x3b },
 356        { STV090x_P1_MODCODLST0,        0xff },
 357        { STV090x_P1_MODCODLST1,        0xff },
 358        { STV090x_P1_MODCODLST2,        0xff },
 359        { STV090x_P1_MODCODLST3,        0xff },
 360        { STV090x_P1_MODCODLST4,        0xff },
 361        { STV090x_P1_MODCODLST5,        0xff },
 362        { STV090x_P1_MODCODLST6,        0xff },
 363        { STV090x_P1_MODCODLST7,        0xcc },
 364        { STV090x_P1_MODCODLST8,        0xcc },
 365        { STV090x_P1_MODCODLST9,        0xcc },
 366        { STV090x_P1_MODCODLSTA,        0xcc },
 367        { STV090x_P1_MODCODLSTB,        0xcc },
 368        { STV090x_P1_MODCODLSTC,        0xcc },
 369        { STV090x_P1_MODCODLSTD,        0xcc },
 370        { STV090x_P1_MODCODLSTE,        0xcc },
 371        { STV090x_P1_MODCODLSTF,        0xcf },
 372        { STV090x_GENCFG,               0x1d },
 373        { STV090x_NBITER_NF4,           0x37 },
 374        { STV090x_NBITER_NF5,           0x29 },
 375        { STV090x_NBITER_NF6,           0x37 },
 376        { STV090x_NBITER_NF7,           0x33 },
 377        { STV090x_NBITER_NF8,           0x31 },
 378        { STV090x_NBITER_NF9,           0x2f },
 379        { STV090x_NBITER_NF10,          0x39 },
 380        { STV090x_NBITER_NF11,          0x3a },
 381        { STV090x_NBITER_NF12,          0x29 },
 382        { STV090x_NBITER_NF13,          0x37 },
 383        { STV090x_NBITER_NF14,          0x33 },
 384        { STV090x_NBITER_NF15,          0x2f },
 385        { STV090x_NBITER_NF16,          0x39 },
 386        { STV090x_NBITER_NF17,          0x3a },
 387        { STV090x_NBITERNOERR,          0x04 },
 388        { STV090x_GAINLLR_NF4,          0x0C },
 389        { STV090x_GAINLLR_NF5,          0x0F },
 390        { STV090x_GAINLLR_NF6,          0x11 },
 391        { STV090x_GAINLLR_NF7,          0x14 },
 392        { STV090x_GAINLLR_NF8,          0x17 },
 393        { STV090x_GAINLLR_NF9,          0x19 },
 394        { STV090x_GAINLLR_NF10,         0x20 },
 395        { STV090x_GAINLLR_NF11,         0x21 },
 396        { STV090x_GAINLLR_NF12,         0x0D },
 397        { STV090x_GAINLLR_NF13,         0x0F },
 398        { STV090x_GAINLLR_NF14,         0x13 },
 399        { STV090x_GAINLLR_NF15,         0x1A },
 400        { STV090x_GAINLLR_NF16,         0x1F },
 401        { STV090x_GAINLLR_NF17,         0x21 },
 402        { STV090x_RCCFGH,               0x20 },
 403        { STV090x_P1_FECM,              0x01 }, /* disable DSS modes */
 404        { STV090x_P2_FECM,              0x01 }, /* disable DSS modes */
 405        { STV090x_P1_PRVIT,             0x2F }, /* disable PR 6/7 */
 406        { STV090x_P2_PRVIT,             0x2F }, /* disable PR 6/7 */
 407};
 408
 409static struct stv090x_reg stv0903_initval[] = {
 410        { STV090x_OUTCFG,               0x00 },
 411        { STV090x_AGCRF1CFG,            0x11 },
 412        { STV090x_STOPCLK1,             0x48 },
 413        { STV090x_STOPCLK2,             0x14 },
 414        { STV090x_TSTTNR1,              0x27 },
 415        { STV090x_TSTTNR2,              0x21 },
 416        { STV090x_P1_DISTXCTL,          0x22 },
 417        { STV090x_P1_F22TX,             0xc0 },
 418        { STV090x_P1_F22RX,             0xc0 },
 419        { STV090x_P1_DISRXCTL,          0x00 },
 420        { STV090x_P1_DMDCFGMD,          0xF9 },
 421        { STV090x_P1_DEMOD,             0x08 },
 422        { STV090x_P1_DMDCFG3,           0xc4 },
 423        { STV090x_P1_CARFREQ,           0xed },
 424        { STV090x_P1_TNRCFG2,           0x82 },
 425        { STV090x_P1_LDT,               0xd0 },
 426        { STV090x_P1_LDT2,              0xb8 },
 427        { STV090x_P1_TMGCFG,            0xd2 },
 428        { STV090x_P1_TMGTHRISE,         0x20 },
 429        { STV090x_P1_TMGTHFALL,         0x00 },
 430        { STV090x_P1_SFRUPRATIO,        0xf0 },
 431        { STV090x_P1_SFRLOWRATIO,       0x70 },
 432        { STV090x_P1_TSCFGL,            0x20 },
 433        { STV090x_P1_FECSPY,            0x88 },
 434        { STV090x_P1_FSPYDATA,          0x3a },
 435        { STV090x_P1_FBERCPT4,          0x00 },
 436        { STV090x_P1_FSPYBER,           0x10 },
 437        { STV090x_P1_ERRCTRL1,          0x35 },
 438        { STV090x_P1_ERRCTRL2,          0xc1 },
 439        { STV090x_P1_CFRICFG,           0xf8 },
 440        { STV090x_P1_NOSCFG,            0x1c },
 441        { STV090x_P1_DMDTOM,            0x20 },
 442        { STV090x_P1_CORRELMANT,        0x70 },
 443        { STV090x_P1_CORRELABS,         0x88 },
 444        { STV090x_P1_AGC2O,             0x5b },
 445        { STV090x_P1_AGC2REF,           0x38 },
 446        { STV090x_P1_CARCFG,            0xe4 },
 447        { STV090x_P1_ACLC,              0x1A },
 448        { STV090x_P1_BCLC,              0x09 },
 449        { STV090x_P1_CARHDR,            0x08 },
 450        { STV090x_P1_KREFTMG,           0xc1 },
 451        { STV090x_P1_SFRSTEP,           0x58 },
 452        { STV090x_P1_TMGCFG2,           0x01 },
 453        { STV090x_P1_CAR2CFG,           0x26 },
 454        { STV090x_P1_BCLC2S2Q,          0x86 },
 455        { STV090x_P1_BCLC2S28,          0x86 },
 456        { STV090x_P1_SMAPCOEF7,         0x77 },
 457        { STV090x_P1_SMAPCOEF6,         0x85 },
 458        { STV090x_P1_SMAPCOEF5,         0x77 },
 459        { STV090x_P1_DMDCFG2,           0x3b },
 460        { STV090x_P1_MODCODLST0,        0xff },
 461        { STV090x_P1_MODCODLST1,        0xff },
 462        { STV090x_P1_MODCODLST2,        0xff },
 463        { STV090x_P1_MODCODLST3,        0xff },
 464        { STV090x_P1_MODCODLST4,        0xff },
 465        { STV090x_P1_MODCODLST5,        0xff },
 466        { STV090x_P1_MODCODLST6,        0xff },
 467        { STV090x_P1_MODCODLST7,        0xcc },
 468        { STV090x_P1_MODCODLST8,        0xcc },
 469        { STV090x_P1_MODCODLST9,        0xcc },
 470        { STV090x_P1_MODCODLSTA,        0xcc },
 471        { STV090x_P1_MODCODLSTB,        0xcc },
 472        { STV090x_P1_MODCODLSTC,        0xcc },
 473        { STV090x_P1_MODCODLSTD,        0xcc },
 474        { STV090x_P1_MODCODLSTE,        0xcc },
 475        { STV090x_P1_MODCODLSTF,        0xcf },
 476        { STV090x_GENCFG,               0x1c },
 477        { STV090x_NBITER_NF4,           0x37 },
 478        { STV090x_NBITER_NF5,           0x29 },
 479        { STV090x_NBITER_NF6,           0x37 },
 480        { STV090x_NBITER_NF7,           0x33 },
 481        { STV090x_NBITER_NF8,           0x31 },
 482        { STV090x_NBITER_NF9,           0x2f },
 483        { STV090x_NBITER_NF10,          0x39 },
 484        { STV090x_NBITER_NF11,          0x3a },
 485        { STV090x_NBITER_NF12,          0x29 },
 486        { STV090x_NBITER_NF13,          0x37 },
 487        { STV090x_NBITER_NF14,          0x33 },
 488        { STV090x_NBITER_NF15,          0x2f },
 489        { STV090x_NBITER_NF16,          0x39 },
 490        { STV090x_NBITER_NF17,          0x3a },
 491        { STV090x_NBITERNOERR,          0x04 },
 492        { STV090x_GAINLLR_NF4,          0x0C },
 493        { STV090x_GAINLLR_NF5,          0x0F },
 494        { STV090x_GAINLLR_NF6,          0x11 },
 495        { STV090x_GAINLLR_NF7,          0x14 },
 496        { STV090x_GAINLLR_NF8,          0x17 },
 497        { STV090x_GAINLLR_NF9,          0x19 },
 498        { STV090x_GAINLLR_NF10,         0x20 },
 499        { STV090x_GAINLLR_NF11,         0x21 },
 500        { STV090x_GAINLLR_NF12,         0x0D },
 501        { STV090x_GAINLLR_NF13,         0x0F },
 502        { STV090x_GAINLLR_NF14,         0x13 },
 503        { STV090x_GAINLLR_NF15,         0x1A },
 504        { STV090x_GAINLLR_NF16,         0x1F },
 505        { STV090x_GAINLLR_NF17,         0x21 },
 506        { STV090x_RCCFGH,               0x20 },
 507        { STV090x_P1_FECM,              0x01 }, /*disable the DSS mode */
 508        { STV090x_P1_PRVIT,             0x2f }  /*disable puncture rate 6/7*/
 509};
 510
 511static struct stv090x_reg stv0900_cut20_val[] = {
 512
 513        { STV090x_P2_DMDCFG3,           0xe8 },
 514        { STV090x_P2_DMDCFG4,           0x10 },
 515        { STV090x_P2_CARFREQ,           0x38 },
 516        { STV090x_P2_CARHDR,            0x20 },
 517        { STV090x_P2_KREFTMG,           0x5a },
 518        { STV090x_P2_SMAPCOEF7,         0x06 },
 519        { STV090x_P2_SMAPCOEF6,         0x00 },
 520        { STV090x_P2_SMAPCOEF5,         0x04 },
 521        { STV090x_P2_NOSCFG,            0x0c },
 522        { STV090x_P1_DMDCFG3,           0xe8 },
 523        { STV090x_P1_DMDCFG4,           0x10 },
 524        { STV090x_P1_CARFREQ,           0x38 },
 525        { STV090x_P1_CARHDR,            0x20 },
 526        { STV090x_P1_KREFTMG,           0x5a },
 527        { STV090x_P1_SMAPCOEF7,         0x06 },
 528        { STV090x_P1_SMAPCOEF6,         0x00 },
 529        { STV090x_P1_SMAPCOEF5,         0x04 },
 530        { STV090x_P1_NOSCFG,            0x0c },
 531        { STV090x_GAINLLR_NF4,          0x21 },
 532        { STV090x_GAINLLR_NF5,          0x21 },
 533        { STV090x_GAINLLR_NF6,          0x20 },
 534        { STV090x_GAINLLR_NF7,          0x1F },
 535        { STV090x_GAINLLR_NF8,          0x1E },
 536        { STV090x_GAINLLR_NF9,          0x1E },
 537        { STV090x_GAINLLR_NF10,         0x1D },
 538        { STV090x_GAINLLR_NF11,         0x1B },
 539        { STV090x_GAINLLR_NF12,         0x20 },
 540        { STV090x_GAINLLR_NF13,         0x20 },
 541        { STV090x_GAINLLR_NF14,         0x20 },
 542        { STV090x_GAINLLR_NF15,         0x20 },
 543        { STV090x_GAINLLR_NF16,         0x20 },
 544        { STV090x_GAINLLR_NF17,         0x21 },
 545};
 546
 547static struct stv090x_reg stv0903_cut20_val[] = {
 548        { STV090x_P1_DMDCFG3,           0xe8 },
 549        { STV090x_P1_DMDCFG4,           0x10 },
 550        { STV090x_P1_CARFREQ,           0x38 },
 551        { STV090x_P1_CARHDR,            0x20 },
 552        { STV090x_P1_KREFTMG,           0x5a },
 553        { STV090x_P1_SMAPCOEF7,         0x06 },
 554        { STV090x_P1_SMAPCOEF6,         0x00 },
 555        { STV090x_P1_SMAPCOEF5,         0x04 },
 556        { STV090x_P1_NOSCFG,            0x0c },
 557        { STV090x_GAINLLR_NF4,          0x21 },
 558        { STV090x_GAINLLR_NF5,          0x21 },
 559        { STV090x_GAINLLR_NF6,          0x20 },
 560        { STV090x_GAINLLR_NF7,          0x1F },
 561        { STV090x_GAINLLR_NF8,          0x1E },
 562        { STV090x_GAINLLR_NF9,          0x1E },
 563        { STV090x_GAINLLR_NF10,         0x1D },
 564        { STV090x_GAINLLR_NF11,         0x1B },
 565        { STV090x_GAINLLR_NF12,         0x20 },
 566        { STV090x_GAINLLR_NF13,         0x20 },
 567        { STV090x_GAINLLR_NF14,         0x20 },
 568        { STV090x_GAINLLR_NF15,         0x20 },
 569        { STV090x_GAINLLR_NF16,         0x20 },
 570        { STV090x_GAINLLR_NF17,         0x21 }
 571};
 572
 573/* Cut 2.0 Long Frame Tracking CR loop */
 574static struct stv090x_long_frame_crloop stv090x_s2_crl_cut20[] = {
 575        /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 576        { STV090x_QPSK_12,  0x1f, 0x3f, 0x1e, 0x3f, 0x3d, 0x1f, 0x3d, 0x3e, 0x3d, 0x1e },
 577        { STV090x_QPSK_35,  0x2f, 0x3f, 0x2e, 0x2f, 0x3d, 0x0f, 0x0e, 0x2e, 0x3d, 0x0e },
 578        { STV090x_QPSK_23,  0x2f, 0x3f, 0x2e, 0x2f, 0x0e, 0x0f, 0x0e, 0x1e, 0x3d, 0x3d },
 579        { STV090x_QPSK_34,  0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 580        { STV090x_QPSK_45,  0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 581        { STV090x_QPSK_56,  0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 582        { STV090x_QPSK_89,  0x3f, 0x3f, 0x3e, 0x1f, 0x1e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 583        { STV090x_QPSK_910, 0x3f, 0x3f, 0x3e, 0x1f, 0x1e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 584        { STV090x_8PSK_35,  0x3c, 0x3e, 0x1c, 0x2e, 0x0c, 0x1e, 0x2b, 0x2d, 0x1b, 0x1d },
 585        { STV090x_8PSK_23,  0x1d, 0x3e, 0x3c, 0x2e, 0x2c, 0x1e, 0x0c, 0x2d, 0x2b, 0x1d },
 586        { STV090x_8PSK_34,  0x0e, 0x3e, 0x3d, 0x2e, 0x0d, 0x1e, 0x2c, 0x2d, 0x0c, 0x1d },
 587        { STV090x_8PSK_56,  0x2e, 0x3e, 0x1e, 0x2e, 0x2d, 0x1e, 0x3c, 0x2d, 0x2c, 0x1d },
 588        { STV090x_8PSK_89,  0x3e, 0x3e, 0x1e, 0x2e, 0x3d, 0x1e, 0x0d, 0x2d, 0x3c, 0x1d },
 589        { STV090x_8PSK_910, 0x3e, 0x3e, 0x1e, 0x2e, 0x3d, 0x1e, 0x1d, 0x2d, 0x0d, 0x1d }
 590};
 591
 592/* Cut 3.0 Long Frame Tracking CR loop */
 593static  struct stv090x_long_frame_crloop stv090x_s2_crl_cut30[] = {
 594        /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 595        { STV090x_QPSK_12,  0x3c, 0x2c, 0x0c, 0x2c, 0x1b, 0x2c, 0x1b, 0x1c, 0x0b, 0x3b },
 596        { STV090x_QPSK_35,  0x0d, 0x0d, 0x0c, 0x0d, 0x1b, 0x3c, 0x1b, 0x1c, 0x0b, 0x3b },
 597        { STV090x_QPSK_23,  0x1d, 0x0d, 0x0c, 0x1d, 0x2b, 0x3c, 0x1b, 0x1c, 0x0b, 0x3b },
 598        { STV090x_QPSK_34,  0x1d, 0x1d, 0x0c, 0x1d, 0x2b, 0x3c, 0x1b, 0x1c, 0x0b, 0x3b },
 599        { STV090x_QPSK_45,  0x2d, 0x1d, 0x1c, 0x1d, 0x2b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
 600        { STV090x_QPSK_56,  0x2d, 0x1d, 0x1c, 0x1d, 0x2b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
 601        { STV090x_QPSK_89,  0x3d, 0x2d, 0x1c, 0x1d, 0x3b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
 602        { STV090x_QPSK_910, 0x3d, 0x2d, 0x1c, 0x1d, 0x3b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
 603        { STV090x_8PSK_35,  0x39, 0x29, 0x39, 0x19, 0x19, 0x19, 0x19, 0x19, 0x09, 0x19 },
 604        { STV090x_8PSK_23,  0x2a, 0x39, 0x1a, 0x0a, 0x39, 0x0a, 0x29, 0x39, 0x29, 0x0a },
 605        { STV090x_8PSK_34,  0x2b, 0x3a, 0x1b, 0x1b, 0x3a, 0x1b, 0x1a, 0x0b, 0x1a, 0x3a },
 606        { STV090x_8PSK_56,  0x0c, 0x1b, 0x3b, 0x3b, 0x1b, 0x3b, 0x3a, 0x3b, 0x3a, 0x1b },
 607        { STV090x_8PSK_89,  0x0d, 0x3c, 0x2c, 0x2c, 0x2b, 0x0c, 0x0b, 0x3b, 0x0b, 0x1b },
 608        { STV090x_8PSK_910, 0x0d, 0x0d, 0x2c, 0x3c, 0x3b, 0x1c, 0x0b, 0x3b, 0x0b, 0x1b }
 609};
 610
 611/* Cut 2.0 Long Frame Tracking CR Loop */
 612static struct stv090x_long_frame_crloop stv090x_s2_apsk_crl_cut20[] = {
 613        /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 614        { STV090x_16APSK_23,  0x0c, 0x0c, 0x0c, 0x0c, 0x1d, 0x0c, 0x3c, 0x0c, 0x2c, 0x0c },
 615        { STV090x_16APSK_34,  0x0c, 0x0c, 0x0c, 0x0c, 0x0e, 0x0c, 0x2d, 0x0c, 0x1d, 0x0c },
 616        { STV090x_16APSK_45,  0x0c, 0x0c, 0x0c, 0x0c, 0x1e, 0x0c, 0x3d, 0x0c, 0x2d, 0x0c },
 617        { STV090x_16APSK_56,  0x0c, 0x0c, 0x0c, 0x0c, 0x1e, 0x0c, 0x3d, 0x0c, 0x2d, 0x0c },
 618        { STV090x_16APSK_89,  0x0c, 0x0c, 0x0c, 0x0c, 0x2e, 0x0c, 0x0e, 0x0c, 0x3d, 0x0c },
 619        { STV090x_16APSK_910, 0x0c, 0x0c, 0x0c, 0x0c, 0x2e, 0x0c, 0x0e, 0x0c, 0x3d, 0x0c },
 620        { STV090x_32APSK_34,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 621        { STV090x_32APSK_45,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 622        { STV090x_32APSK_56,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 623        { STV090x_32APSK_89,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 624        { STV090x_32APSK_910, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c }
 625};
 626
 627/* Cut 3.0 Long Frame Tracking CR Loop */
 628static struct stv090x_long_frame_crloop stv090x_s2_apsk_crl_cut30[] = {
 629        /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 630        { STV090x_16APSK_23,  0x0a, 0x0a, 0x0a, 0x0a, 0x1a, 0x0a, 0x3a, 0x0a, 0x2a, 0x0a },
 631        { STV090x_16APSK_34,  0x0a, 0x0a, 0x0a, 0x0a, 0x0b, 0x0a, 0x3b, 0x0a, 0x1b, 0x0a },
 632        { STV090x_16APSK_45,  0x0a, 0x0a, 0x0a, 0x0a, 0x1b, 0x0a, 0x3b, 0x0a, 0x2b, 0x0a },
 633        { STV090x_16APSK_56,  0x0a, 0x0a, 0x0a, 0x0a, 0x1b, 0x0a, 0x3b, 0x0a, 0x2b, 0x0a },
 634        { STV090x_16APSK_89,  0x0a, 0x0a, 0x0a, 0x0a, 0x2b, 0x0a, 0x0c, 0x0a, 0x3b, 0x0a },
 635        { STV090x_16APSK_910, 0x0a, 0x0a, 0x0a, 0x0a, 0x2b, 0x0a, 0x0c, 0x0a, 0x3b, 0x0a },
 636        { STV090x_32APSK_34,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
 637        { STV090x_32APSK_45,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
 638        { STV090x_32APSK_56,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
 639        { STV090x_32APSK_89,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
 640        { STV090x_32APSK_910, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a }
 641};
 642
 643static struct stv090x_long_frame_crloop stv090x_s2_lowqpsk_crl_cut20[] = {
 644        /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 645        { STV090x_QPSK_14,  0x0f, 0x3f, 0x0e, 0x3f, 0x2d, 0x2f, 0x2d, 0x1f, 0x3d, 0x3e },
 646        { STV090x_QPSK_13,  0x0f, 0x3f, 0x0e, 0x3f, 0x2d, 0x2f, 0x3d, 0x0f, 0x3d, 0x2e },
 647        { STV090x_QPSK_25,  0x1f, 0x3f, 0x1e, 0x3f, 0x3d, 0x1f, 0x3d, 0x3e, 0x3d, 0x2e }
 648};
 649
 650static struct stv090x_long_frame_crloop stv090x_s2_lowqpsk_crl_cut30[] = {
 651        /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 652        { STV090x_QPSK_14,  0x0c, 0x3c, 0x0b, 0x3c, 0x2a, 0x2c, 0x2a, 0x1c, 0x3a, 0x3b },
 653        { STV090x_QPSK_13,  0x0c, 0x3c, 0x0b, 0x3c, 0x2a, 0x2c, 0x3a, 0x0c, 0x3a, 0x2b },
 654        { STV090x_QPSK_25,  0x1c, 0x3c, 0x1b, 0x3c, 0x3a, 0x1c, 0x3a, 0x3b, 0x3a, 0x2b }
 655};
 656
 657/* Cut 2.0 Short Frame Tracking CR Loop */
 658static struct stv090x_short_frame_crloop stv090x_s2_short_crl_cut20[] = {
 659        /* MODCOD         2M    5M    10M   20M   30M */
 660        { STV090x_QPSK,   0x2f, 0x2e, 0x0e, 0x0e, 0x3d },
 661        { STV090x_8PSK,   0x3e, 0x0e, 0x2d, 0x0d, 0x3c },
 662        { STV090x_16APSK, 0x1e, 0x1e, 0x1e, 0x3d, 0x2d },
 663        { STV090x_32APSK, 0x1e, 0x1e, 0x1e, 0x3d, 0x2d }
 664};
 665
 666/* Cut 3.0 Short Frame Tracking CR Loop */
 667static struct stv090x_short_frame_crloop stv090x_s2_short_crl_cut30[] = {
 668        /* MODCOD         2M    5M    10M   20M   30M */
 669        { STV090x_QPSK,   0x2C, 0x2B, 0x0B, 0x0B, 0x3A },
 670        { STV090x_8PSK,   0x3B, 0x0B, 0x2A, 0x0A, 0x39 },
 671        { STV090x_16APSK, 0x1B, 0x1B, 0x1B, 0x3A, 0x2A },
 672        { STV090x_32APSK, 0x1B, 0x1B, 0x1B, 0x3A, 0x2A }
 673};
 674
 675static inline s32 comp2(s32 __x, s32 __width)
 676{
 677        if (__width == 32)
 678                return __x;
 679        else
 680                return (__x >= (1 << (__width - 1))) ? (__x - (1 << __width)) : __x;
 681}
 682
 683static int stv090x_read_reg(struct stv090x_state *state, unsigned int reg)
 684{
 685        const struct stv090x_config *config = state->config;
 686        int ret;
 687
 688        u8 b0[] = { reg >> 8, reg & 0xff };
 689        u8 buf;
 690
 691        struct i2c_msg msg[] = {
 692                { .addr = config->address, .flags       = 0,            .buf = b0,   .len = 2 },
 693                { .addr = config->address, .flags       = I2C_M_RD,     .buf = &buf, .len = 1 }
 694        };
 695
 696        ret = i2c_transfer(state->i2c, msg, 2);
 697        if (ret != 2) {
 698                if (ret != -ERESTARTSYS)
 699                        dprintk(FE_ERROR, 1,
 700                                "Read error, Reg=[0x%02x], Status=%d",
 701                                reg, ret);
 702
 703                return ret < 0 ? ret : -EREMOTEIO;
 704        }
 705        if (unlikely(*state->verbose >= FE_DEBUGREG))
 706                dprintk(FE_ERROR, 1, "Reg=[0x%02x], data=%02x",
 707                        reg, buf);
 708
 709        return (unsigned int) buf;
 710}
 711
 712static int stv090x_write_regs(struct stv090x_state *state, unsigned int reg, u8 *data, u32 count)
 713{
 714        const struct stv090x_config *config = state->config;
 715        int ret;
 716        u8 buf[MAX_XFER_SIZE];
 717        struct i2c_msg i2c_msg = { .addr = config->address, .flags = 0, .buf = buf, .len = 2 + count };
 718
 719        if (2 + count > sizeof(buf)) {
 720                printk(KERN_WARNING
 721                       "%s: i2c wr reg=%04x: len=%d is too big!\n",
 722                       KBUILD_MODNAME, reg, count);
 723                return -EINVAL;
 724        }
 725
 726        buf[0] = reg >> 8;
 727        buf[1] = reg & 0xff;
 728        memcpy(&buf[2], data, count);
 729
 730        dprintk(FE_DEBUGREG, 1, "%s [0x%04x]: %*ph",
 731                __func__, reg, count, data);
 732
 733        ret = i2c_transfer(state->i2c, &i2c_msg, 1);
 734        if (ret != 1) {
 735                if (ret != -ERESTARTSYS)
 736                        dprintk(FE_ERROR, 1, "Reg=[0x%04x], Data=[0x%02x ...], Count=%u, Status=%d",
 737                                reg, data[0], count, ret);
 738                return ret < 0 ? ret : -EREMOTEIO;
 739        }
 740
 741        return 0;
 742}
 743
 744static int stv090x_write_reg(struct stv090x_state *state, unsigned int reg, u8 data)
 745{
 746        u8 tmp = data; /* see gcc.gnu.org/bugzilla/show_bug.cgi?id=81715 */
 747
 748        return stv090x_write_regs(state, reg, &tmp, 1);
 749}
 750
 751static int stv090x_i2c_gate_ctrl(struct stv090x_state *state, int enable)
 752{
 753        u32 reg;
 754
 755        /*
 756         * NOTE! A lock is used as a FSM to control the state in which
 757         * access is serialized between two tuners on the same demod.
 758         * This has nothing to do with a lock to protect a critical section
 759         * which may in some other cases be confused with protecting I/O
 760         * access to the demodulator gate.
 761         * In case of any error, the lock is unlocked and exit within the
 762         * relevant operations themselves.
 763         */
 764        if (enable) {
 765                if (state->config->tuner_i2c_lock)
 766                        state->config->tuner_i2c_lock(&state->frontend, 1);
 767                else
 768                        mutex_lock(&state->internal->tuner_lock);
 769        }
 770
 771        reg = STV090x_READ_DEMOD(state, I2CRPT);
 772        if (enable) {
 773                dprintk(FE_DEBUG, 1, "Enable Gate");
 774                STV090x_SETFIELD_Px(reg, I2CT_ON_FIELD, 1);
 775                if (STV090x_WRITE_DEMOD(state, I2CRPT, reg) < 0)
 776                        goto err;
 777
 778        } else {
 779                dprintk(FE_DEBUG, 1, "Disable Gate");
 780                STV090x_SETFIELD_Px(reg, I2CT_ON_FIELD, 0);
 781                if ((STV090x_WRITE_DEMOD(state, I2CRPT, reg)) < 0)
 782                        goto err;
 783        }
 784
 785        if (!enable) {
 786                if (state->config->tuner_i2c_lock)
 787                        state->config->tuner_i2c_lock(&state->frontend, 0);
 788                else
 789                        mutex_unlock(&state->internal->tuner_lock);
 790        }
 791
 792        return 0;
 793err:
 794        dprintk(FE_ERROR, 1, "I/O error");
 795        if (state->config->tuner_i2c_lock)
 796                state->config->tuner_i2c_lock(&state->frontend, 0);
 797        else
 798                mutex_unlock(&state->internal->tuner_lock);
 799        return -1;
 800}
 801
 802static void stv090x_get_lock_tmg(struct stv090x_state *state)
 803{
 804        switch (state->algo) {
 805        case STV090x_BLIND_SEARCH:
 806                dprintk(FE_DEBUG, 1, "Blind Search");
 807                if (state->srate <= 1500000) {  /*10Msps< SR <=15Msps*/
 808                        state->DemodTimeout = 1500;
 809                        state->FecTimeout = 400;
 810                } else if (state->srate <= 5000000) {  /*10Msps< SR <=15Msps*/
 811                        state->DemodTimeout = 1000;
 812                        state->FecTimeout = 300;
 813                } else {  /*SR >20Msps*/
 814                        state->DemodTimeout = 700;
 815                        state->FecTimeout = 100;
 816                }
 817                break;
 818
 819        case STV090x_COLD_SEARCH:
 820        case STV090x_WARM_SEARCH:
 821        default:
 822                dprintk(FE_DEBUG, 1, "Normal Search");
 823                if (state->srate <= 1000000) {  /*SR <=1Msps*/
 824                        state->DemodTimeout = 4500;
 825                        state->FecTimeout = 1700;
 826                } else if (state->srate <= 2000000) { /*1Msps < SR <= 2Msps */
 827                        state->DemodTimeout = 2500;
 828                        state->FecTimeout = 1100;
 829                } else if (state->srate <= 5000000) { /*2Msps < SR <= 5Msps */
 830                        state->DemodTimeout = 1000;
 831                        state->FecTimeout = 550;
 832                } else if (state->srate <= 10000000) { /*5Msps < SR <= 10Msps */
 833                        state->DemodTimeout = 700;
 834                        state->FecTimeout = 250;
 835                } else if (state->srate <= 20000000) { /*10Msps < SR <= 20Msps */
 836                        state->DemodTimeout = 400;
 837                        state->FecTimeout = 130;
 838                } else {   /*SR >20Msps*/
 839                        state->DemodTimeout = 300;
 840                        state->FecTimeout = 100;
 841                }
 842                break;
 843        }
 844
 845        if (state->algo == STV090x_WARM_SEARCH)
 846                state->DemodTimeout /= 2;
 847}
 848
 849static int stv090x_set_srate(struct stv090x_state *state, u32 srate)
 850{
 851        u32 sym;
 852
 853        if (srate > 60000000) {
 854                sym  = (srate << 4); /* SR * 2^16 / master_clk */
 855                sym /= (state->internal->mclk >> 12);
 856        } else if (srate > 6000000) {
 857                sym  = (srate << 6);
 858                sym /= (state->internal->mclk >> 10);
 859        } else {
 860                sym  = (srate << 9);
 861                sym /= (state->internal->mclk >> 7);
 862        }
 863
 864        if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0x7f) < 0) /* MSB */
 865                goto err;
 866        if (STV090x_WRITE_DEMOD(state, SFRINIT0, (sym & 0xff)) < 0) /* LSB */
 867                goto err;
 868
 869        return 0;
 870err:
 871        dprintk(FE_ERROR, 1, "I/O error");
 872        return -1;
 873}
 874
 875static int stv090x_set_max_srate(struct stv090x_state *state, u32 clk, u32 srate)
 876{
 877        u32 sym;
 878
 879        srate = 105 * (srate / 100);
 880        if (srate > 60000000) {
 881                sym  = (srate << 4); /* SR * 2^16 / master_clk */
 882                sym /= (state->internal->mclk >> 12);
 883        } else if (srate > 6000000) {
 884                sym  = (srate << 6);
 885                sym /= (state->internal->mclk >> 10);
 886        } else {
 887                sym  = (srate << 9);
 888                sym /= (state->internal->mclk >> 7);
 889        }
 890
 891        if (sym < 0x7fff) {
 892                if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0) /* MSB */
 893                        goto err;
 894                if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0) /* LSB */
 895                        goto err;
 896        } else {
 897                if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x7f) < 0) /* MSB */
 898                        goto err;
 899                if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xff) < 0) /* LSB */
 900                        goto err;
 901        }
 902
 903        return 0;
 904err:
 905        dprintk(FE_ERROR, 1, "I/O error");
 906        return -1;
 907}
 908
 909static int stv090x_set_min_srate(struct stv090x_state *state, u32 clk, u32 srate)
 910{
 911        u32 sym;
 912
 913        srate = 95 * (srate / 100);
 914        if (srate > 60000000) {
 915                sym  = (srate << 4); /* SR * 2^16 / master_clk */
 916                sym /= (state->internal->mclk >> 12);
 917        } else if (srate > 6000000) {
 918                sym  = (srate << 6);
 919                sym /= (state->internal->mclk >> 10);
 920        } else {
 921                sym  = (srate << 9);
 922                sym /= (state->internal->mclk >> 7);
 923        }
 924
 925        if (STV090x_WRITE_DEMOD(state, SFRLOW1, ((sym >> 8) & 0x7f)) < 0) /* MSB */
 926                goto err;
 927        if (STV090x_WRITE_DEMOD(state, SFRLOW0, (sym & 0xff)) < 0) /* LSB */
 928                goto err;
 929        return 0;
 930err:
 931        dprintk(FE_ERROR, 1, "I/O error");
 932        return -1;
 933}
 934
 935static u32 stv090x_car_width(u32 srate, enum stv090x_rolloff rolloff)
 936{
 937        u32 ro;
 938
 939        switch (rolloff) {
 940        case STV090x_RO_20:
 941                ro = 20;
 942                break;
 943        case STV090x_RO_25:
 944                ro = 25;
 945                break;
 946        case STV090x_RO_35:
 947        default:
 948                ro = 35;
 949                break;
 950        }
 951
 952        return srate + (srate * ro) / 100;
 953}
 954
 955static int stv090x_set_vit_thacq(struct stv090x_state *state)
 956{
 957        if (STV090x_WRITE_DEMOD(state, VTH12, 0x96) < 0)
 958                goto err;
 959        if (STV090x_WRITE_DEMOD(state, VTH23, 0x64) < 0)
 960                goto err;
 961        if (STV090x_WRITE_DEMOD(state, VTH34, 0x36) < 0)
 962                goto err;
 963        if (STV090x_WRITE_DEMOD(state, VTH56, 0x23) < 0)
 964                goto err;
 965        if (STV090x_WRITE_DEMOD(state, VTH67, 0x1e) < 0)
 966                goto err;
 967        if (STV090x_WRITE_DEMOD(state, VTH78, 0x19) < 0)
 968                goto err;
 969        return 0;
 970err:
 971        dprintk(FE_ERROR, 1, "I/O error");
 972        return -1;
 973}
 974
 975static int stv090x_set_vit_thtracq(struct stv090x_state *state)
 976{
 977        if (STV090x_WRITE_DEMOD(state, VTH12, 0xd0) < 0)
 978                goto err;
 979        if (STV090x_WRITE_DEMOD(state, VTH23, 0x7d) < 0)
 980                goto err;
 981        if (STV090x_WRITE_DEMOD(state, VTH34, 0x53) < 0)
 982                goto err;
 983        if (STV090x_WRITE_DEMOD(state, VTH56, 0x2f) < 0)
 984                goto err;
 985        if (STV090x_WRITE_DEMOD(state, VTH67, 0x24) < 0)
 986                goto err;
 987        if (STV090x_WRITE_DEMOD(state, VTH78, 0x1f) < 0)
 988                goto err;
 989        return 0;
 990err:
 991        dprintk(FE_ERROR, 1, "I/O error");
 992        return -1;
 993}
 994
 995static int stv090x_set_viterbi(struct stv090x_state *state)
 996{
 997        switch (state->search_mode) {
 998        case STV090x_SEARCH_AUTO:
 999                if (STV090x_WRITE_DEMOD(state, FECM, 0x10) < 0) /* DVB-S and DVB-S2 */
1000                        goto err;
1001                if (STV090x_WRITE_DEMOD(state, PRVIT, 0x3f) < 0) /* all puncture rate */
1002                        goto err;
1003                break;
1004        case STV090x_SEARCH_DVBS1:
1005                if (STV090x_WRITE_DEMOD(state, FECM, 0x00) < 0) /* disable DSS */
1006                        goto err;
1007                switch (state->fec) {
1008                case STV090x_PR12:
1009                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x01) < 0)
1010                                goto err;
1011                        break;
1012
1013                case STV090x_PR23:
1014                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x02) < 0)
1015                                goto err;
1016                        break;
1017
1018                case STV090x_PR34:
1019                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x04) < 0)
1020                                goto err;
1021                        break;
1022
1023                case STV090x_PR56:
1024                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x08) < 0)
1025                                goto err;
1026                        break;
1027
1028                case STV090x_PR78:
1029                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x20) < 0)
1030                                goto err;
1031                        break;
1032
1033                default:
1034                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x2f) < 0) /* all */
1035                                goto err;
1036                        break;
1037                }
1038                break;
1039        case STV090x_SEARCH_DSS:
1040                if (STV090x_WRITE_DEMOD(state, FECM, 0x80) < 0)
1041                        goto err;
1042                switch (state->fec) {
1043                case STV090x_PR12:
1044                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x01) < 0)
1045                                goto err;
1046                        break;
1047
1048                case STV090x_PR23:
1049                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x02) < 0)
1050                                goto err;
1051                        break;
1052
1053                case STV090x_PR67:
1054                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x10) < 0)
1055                                goto err;
1056                        break;
1057
1058                default:
1059                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x13) < 0) /* 1/2, 2/3, 6/7 */
1060                                goto err;
1061                        break;
1062                }
1063                break;
1064        default:
1065                break;
1066        }
1067        return 0;
1068err:
1069        dprintk(FE_ERROR, 1, "I/O error");
1070        return -1;
1071}
1072
1073static int stv090x_stop_modcod(struct stv090x_state *state)
1074{
1075        if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1076                goto err;
1077        if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xff) < 0)
1078                goto err;
1079        if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xff) < 0)
1080                goto err;
1081        if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xff) < 0)
1082                goto err;
1083        if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xff) < 0)
1084                goto err;
1085        if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xff) < 0)
1086                goto err;
1087        if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xff) < 0)
1088                goto err;
1089        if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xff) < 0)
1090                goto err;
1091        if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xff) < 0)
1092                goto err;
1093        if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xff) < 0)
1094                goto err;
1095        if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xff) < 0)
1096                goto err;
1097        if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xff) < 0)
1098                goto err;
1099        if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xff) < 0)
1100                goto err;
1101        if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xff) < 0)
1102                goto err;
1103        if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xff) < 0)
1104                goto err;
1105        if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xff) < 0)
1106                goto err;
1107        return 0;
1108err:
1109        dprintk(FE_ERROR, 1, "I/O error");
1110        return -1;
1111}
1112
1113static int stv090x_activate_modcod(struct stv090x_state *state)
1114{
1115        if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1116                goto err;
1117        if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xfc) < 0)
1118                goto err;
1119        if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xcc) < 0)
1120                goto err;
1121        if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xcc) < 0)
1122                goto err;
1123        if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xcc) < 0)
1124                goto err;
1125        if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xcc) < 0)
1126                goto err;
1127        if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xcc) < 0)
1128                goto err;
1129        if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xcc) < 0)
1130                goto err;
1131        if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xcc) < 0)
1132                goto err;
1133        if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xcc) < 0)
1134                goto err;
1135        if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xcc) < 0)
1136                goto err;
1137        if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xcc) < 0)
1138                goto err;
1139        if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xcc) < 0)
1140                goto err;
1141        if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xcc) < 0)
1142                goto err;
1143        if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xcc) < 0)
1144                goto err;
1145        if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xcf) < 0)
1146                goto err;
1147
1148        return 0;
1149err:
1150        dprintk(FE_ERROR, 1, "I/O error");
1151        return -1;
1152}
1153
1154static int stv090x_activate_modcod_single(struct stv090x_state *state)
1155{
1156
1157        if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1158                goto err;
1159        if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xf0) < 0)
1160                goto err;
1161        if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0x00) < 0)
1162                goto err;
1163        if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0x00) < 0)
1164                goto err;
1165        if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0x00) < 0)
1166                goto err;
1167        if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0x00) < 0)
1168                goto err;
1169        if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0x00) < 0)
1170                goto err;
1171        if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0x00) < 0)
1172                goto err;
1173        if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0x00) < 0)
1174                goto err;
1175        if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0x00) < 0)
1176                goto err;
1177        if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0x00) < 0)
1178                goto err;
1179        if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0x00) < 0)
1180                goto err;
1181        if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0x00) < 0)
1182                goto err;
1183        if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0x00) < 0)
1184                goto err;
1185        if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0x00) < 0)
1186                goto err;
1187        if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0x0f) < 0)
1188                goto err;
1189
1190        return 0;
1191
1192err:
1193        dprintk(FE_ERROR, 1, "I/O error");
1194        return -1;
1195}
1196
1197static int stv090x_vitclk_ctl(struct stv090x_state *state, int enable)
1198{
1199        u32 reg;
1200
1201        switch (state->demod) {
1202        case STV090x_DEMODULATOR_0:
1203                mutex_lock(&state->internal->demod_lock);
1204                reg = stv090x_read_reg(state, STV090x_STOPCLK2);
1205                STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, enable);
1206                if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
1207                        goto err;
1208                mutex_unlock(&state->internal->demod_lock);
1209                break;
1210
1211        case STV090x_DEMODULATOR_1:
1212                mutex_lock(&state->internal->demod_lock);
1213                reg = stv090x_read_reg(state, STV090x_STOPCLK2);
1214                STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, enable);
1215                if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
1216                        goto err;
1217                mutex_unlock(&state->internal->demod_lock);
1218                break;
1219
1220        default:
1221                dprintk(FE_ERROR, 1, "Wrong demodulator!");
1222                break;
1223        }
1224        return 0;
1225err:
1226        mutex_unlock(&state->internal->demod_lock);
1227        dprintk(FE_ERROR, 1, "I/O error");
1228        return -1;
1229}
1230
1231static int stv090x_dvbs_track_crl(struct stv090x_state *state)
1232{
1233        if (state->internal->dev_ver >= 0x30) {
1234                /* Set ACLC BCLC optimised value vs SR */
1235                if (state->srate >= 15000000) {
1236                        if (STV090x_WRITE_DEMOD(state, ACLC, 0x2b) < 0)
1237                                goto err;
1238                        if (STV090x_WRITE_DEMOD(state, BCLC, 0x1a) < 0)
1239                                goto err;
1240                } else if ((state->srate >= 7000000) && (15000000 > state->srate)) {
1241                        if (STV090x_WRITE_DEMOD(state, ACLC, 0x0c) < 0)
1242                                goto err;
1243                        if (STV090x_WRITE_DEMOD(state, BCLC, 0x1b) < 0)
1244                                goto err;
1245                } else if (state->srate < 7000000) {
1246                        if (STV090x_WRITE_DEMOD(state, ACLC, 0x2c) < 0)
1247                                goto err;
1248                        if (STV090x_WRITE_DEMOD(state, BCLC, 0x1c) < 0)
1249                                goto err;
1250                }
1251
1252        } else {
1253                /* Cut 2.0 */
1254                if (STV090x_WRITE_DEMOD(state, ACLC, 0x1a) < 0)
1255                        goto err;
1256                if (STV090x_WRITE_DEMOD(state, BCLC, 0x09) < 0)
1257                        goto err;
1258        }
1259        return 0;
1260err:
1261        dprintk(FE_ERROR, 1, "I/O error");
1262        return -1;
1263}
1264
1265static int stv090x_delivery_search(struct stv090x_state *state)
1266{
1267        u32 reg;
1268
1269        switch (state->search_mode) {
1270        case STV090x_SEARCH_DVBS1:
1271        case STV090x_SEARCH_DSS:
1272                reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1273                STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1274                STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1275                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1276                        goto err;
1277
1278                /* Activate Viterbi decoder in legacy search,
1279                 * do not use FRESVIT1, might impact VITERBI2
1280                 */
1281                if (stv090x_vitclk_ctl(state, 0) < 0)
1282                        goto err;
1283
1284                if (stv090x_dvbs_track_crl(state) < 0)
1285                        goto err;
1286
1287                if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x22) < 0) /* disable DVB-S2 */
1288                        goto err;
1289
1290                if (stv090x_set_vit_thacq(state) < 0)
1291                        goto err;
1292                if (stv090x_set_viterbi(state) < 0)
1293                        goto err;
1294                break;
1295
1296        case STV090x_SEARCH_DVBS2:
1297                reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1298                STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
1299                STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1300                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1301                        goto err;
1302                STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1303                STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
1304                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1305                        goto err;
1306
1307                if (stv090x_vitclk_ctl(state, 1) < 0)
1308                        goto err;
1309
1310                if (STV090x_WRITE_DEMOD(state, ACLC, 0x1a) < 0) /* stop DVB-S CR loop */
1311                        goto err;
1312                if (STV090x_WRITE_DEMOD(state, BCLC, 0x09) < 0)
1313                        goto err;
1314
1315                if (state->internal->dev_ver <= 0x20) {
1316                        /* enable S2 carrier loop */
1317                        if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x26) < 0)
1318                                goto err;
1319                } else {
1320                        /* > Cut 3: Stop carrier 3 */
1321                        if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x66) < 0)
1322                                goto err;
1323                }
1324
1325                if (state->demod_mode != STV090x_SINGLE) {
1326                        /* Cut 2: enable link during search */
1327                        if (stv090x_activate_modcod(state) < 0)
1328                                goto err;
1329                } else {
1330                        /* Single demodulator
1331                         * Authorize SHORT and LONG frames,
1332                         * QPSK, 8PSK, 16APSK and 32APSK
1333                         */
1334                        if (stv090x_activate_modcod_single(state) < 0)
1335                                goto err;
1336                }
1337
1338                if (stv090x_set_vit_thtracq(state) < 0)
1339                        goto err;
1340                break;
1341
1342        case STV090x_SEARCH_AUTO:
1343        default:
1344                /* enable DVB-S2 and DVB-S2 in Auto MODE */
1345                reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1346                STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
1347                STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1348                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1349                        goto err;
1350                STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1351                STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
1352                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1353                        goto err;
1354
1355                if (stv090x_vitclk_ctl(state, 0) < 0)
1356                        goto err;
1357
1358                if (stv090x_dvbs_track_crl(state) < 0)
1359                        goto err;
1360
1361                if (state->internal->dev_ver <= 0x20) {
1362                        /* enable S2 carrier loop */
1363                        if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x26) < 0)
1364                                goto err;
1365                } else {
1366                        /* > Cut 3: Stop carrier 3 */
1367                        if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x66) < 0)
1368                                goto err;
1369                }
1370
1371                if (state->demod_mode != STV090x_SINGLE) {
1372                        /* Cut 2: enable link during search */
1373                        if (stv090x_activate_modcod(state) < 0)
1374                                goto err;
1375                } else {
1376                        /* Single demodulator
1377                         * Authorize SHORT and LONG frames,
1378                         * QPSK, 8PSK, 16APSK and 32APSK
1379                         */
1380                        if (stv090x_activate_modcod_single(state) < 0)
1381                                goto err;
1382                }
1383
1384                if (stv090x_set_vit_thacq(state) < 0)
1385                        goto err;
1386
1387                if (stv090x_set_viterbi(state) < 0)
1388                        goto err;
1389                break;
1390        }
1391        return 0;
1392err:
1393        dprintk(FE_ERROR, 1, "I/O error");
1394        return -1;
1395}
1396
1397static int stv090x_start_search(struct stv090x_state *state)
1398{
1399        u32 reg, freq_abs;
1400        s16 freq;
1401
1402        /* Reset demodulator */
1403        reg = STV090x_READ_DEMOD(state, DMDISTATE);
1404        STV090x_SETFIELD_Px(reg, I2C_DEMOD_MODE_FIELD, 0x1f);
1405        if (STV090x_WRITE_DEMOD(state, DMDISTATE, reg) < 0)
1406                goto err;
1407
1408        if (state->internal->dev_ver <= 0x20) {
1409                if (state->srate <= 5000000) {
1410                        if (STV090x_WRITE_DEMOD(state, CARCFG, 0x44) < 0)
1411                                goto err;
1412                        if (STV090x_WRITE_DEMOD(state, CFRUP1, 0x0f) < 0)
1413                                goto err;
1414                        if (STV090x_WRITE_DEMOD(state, CFRUP0, 0xff) < 0)
1415                                goto err;
1416                        if (STV090x_WRITE_DEMOD(state, CFRLOW1, 0xf0) < 0)
1417                                goto err;
1418                        if (STV090x_WRITE_DEMOD(state, CFRLOW0, 0x00) < 0)
1419                                goto err;
1420
1421                        /*enlarge the timing bandwidth for Low SR*/
1422                        if (STV090x_WRITE_DEMOD(state, RTCS2, 0x68) < 0)
1423                                goto err;
1424                } else {
1425                        /* If the symbol rate is >5 Msps
1426                        Set The carrier search up and low to auto mode */
1427                        if (STV090x_WRITE_DEMOD(state, CARCFG, 0xc4) < 0)
1428                                goto err;
1429                        /*reduce the timing bandwidth for high SR*/
1430                        if (STV090x_WRITE_DEMOD(state, RTCS2, 0x44) < 0)
1431                                goto err;
1432                }
1433        } else {
1434                /* >= Cut 3 */
1435                if (state->srate <= 5000000) {
1436                        /* enlarge the timing bandwidth for Low SR */
1437                        STV090x_WRITE_DEMOD(state, RTCS2, 0x68);
1438                } else {
1439                        /* reduce timing bandwidth for high SR */
1440                        STV090x_WRITE_DEMOD(state, RTCS2, 0x44);
1441                }
1442
1443                /* Set CFR min and max to manual mode */
1444                STV090x_WRITE_DEMOD(state, CARCFG, 0x46);
1445
1446                if (state->algo == STV090x_WARM_SEARCH) {
1447                        /* WARM Start
1448                         * CFR min = -1MHz,
1449                         * CFR max = +1MHz
1450                         */
1451                        freq_abs  = 1000 << 16;
1452                        freq_abs /= (state->internal->mclk / 1000);
1453                        freq      = (s16) freq_abs;
1454                } else {
1455                        /* COLD Start
1456                         * CFR min =- (SearchRange / 2 + 600KHz)
1457                         * CFR max = +(SearchRange / 2 + 600KHz)
1458                         * (600KHz for the tuner step size)
1459                         */
1460                        freq_abs  = (state->search_range / 2000) + 600;
1461                        freq_abs  = freq_abs << 16;
1462                        freq_abs /= (state->internal->mclk / 1000);
1463                        freq      = (s16) freq_abs;
1464                }
1465
1466                if (STV090x_WRITE_DEMOD(state, CFRUP1, MSB(freq)) < 0)
1467                        goto err;
1468                if (STV090x_WRITE_DEMOD(state, CFRUP0, LSB(freq)) < 0)
1469                        goto err;
1470
1471                freq *= -1;
1472
1473                if (STV090x_WRITE_DEMOD(state, CFRLOW1, MSB(freq)) < 0)
1474                        goto err;
1475                if (STV090x_WRITE_DEMOD(state, CFRLOW0, LSB(freq)) < 0)
1476                        goto err;
1477
1478        }
1479
1480        if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0) < 0)
1481                goto err;
1482        if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0) < 0)
1483                goto err;
1484
1485        if (state->internal->dev_ver >= 0x20) {
1486                if (STV090x_WRITE_DEMOD(state, EQUALCFG, 0x41) < 0)
1487                        goto err;
1488                if (STV090x_WRITE_DEMOD(state, FFECFG, 0x41) < 0)
1489                        goto err;
1490
1491                if ((state->search_mode == STV090x_SEARCH_DVBS1)        ||
1492                        (state->search_mode == STV090x_SEARCH_DSS)      ||
1493                        (state->search_mode == STV090x_SEARCH_AUTO)) {
1494
1495                        if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x82) < 0)
1496                                goto err;
1497                        if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x00) < 0)
1498                                goto err;
1499                }
1500        }
1501
1502        if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x00) < 0)
1503                goto err;
1504        if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0xe0) < 0)
1505                goto err;
1506        if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0xc0) < 0)
1507                goto err;
1508
1509        reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1510        STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0);
1511        STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1512        if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1513                goto err;
1514        reg = STV090x_READ_DEMOD(state, DMDCFG2);
1515        STV090x_SETFIELD_Px(reg, S1S2_SEQUENTIAL_FIELD, 0x0);
1516        if (STV090x_WRITE_DEMOD(state, DMDCFG2, reg) < 0)
1517                goto err;
1518
1519        if (STV090x_WRITE_DEMOD(state, RTC, 0x88) < 0)
1520                goto err;
1521
1522        if (state->internal->dev_ver >= 0x20) {
1523                /*Frequency offset detector setting*/
1524                if (state->srate < 2000000) {
1525                        if (state->internal->dev_ver <= 0x20) {
1526                                /* Cut 2 */
1527                                if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x39) < 0)
1528                                        goto err;
1529                        } else {
1530                                /* Cut 3 */
1531                                if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x89) < 0)
1532                                        goto err;
1533                        }
1534                        if (STV090x_WRITE_DEMOD(state, CARHDR, 0x40) < 0)
1535                                goto err;
1536                } else if (state->srate < 10000000) {
1537                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x4c) < 0)
1538                                goto err;
1539                        if (STV090x_WRITE_DEMOD(state, CARHDR, 0x20) < 0)
1540                                goto err;
1541                } else {
1542                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x4b) < 0)
1543                                goto err;
1544                        if (STV090x_WRITE_DEMOD(state, CARHDR, 0x20) < 0)
1545                                goto err;
1546                }
1547        } else {
1548                if (state->srate < 10000000) {
1549                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xef) < 0)
1550                                goto err;
1551                } else {
1552                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xed) < 0)
1553                                goto err;
1554                }
1555        }
1556
1557        switch (state->algo) {
1558        case STV090x_WARM_SEARCH:
1559                /* The symbol rate and the exact
1560                 * carrier Frequency are known
1561                 */
1562                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
1563                        goto err;
1564                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
1565                        goto err;
1566                break;
1567
1568        case STV090x_COLD_SEARCH:
1569                /* The symbol rate is known */
1570                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
1571                        goto err;
1572                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
1573                        goto err;
1574                break;
1575
1576        default:
1577                break;
1578        }
1579        return 0;
1580err:
1581        dprintk(FE_ERROR, 1, "I/O error");
1582        return -1;
1583}
1584
1585static int stv090x_get_agc2_min_level(struct stv090x_state *state)
1586{
1587        u32 agc2_min = 0xffff, agc2 = 0, freq_init, freq_step, reg;
1588        s32 i, j, steps, dir;
1589
1590        if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
1591                goto err;
1592        reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1593        STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0);
1594        STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1595        if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1596                goto err;
1597
1598        if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x83) < 0) /* SR = 65 Msps Max */
1599                goto err;
1600        if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xc0) < 0)
1601                goto err;
1602        if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x82) < 0) /* SR= 400 ksps Min */
1603                goto err;
1604        if (STV090x_WRITE_DEMOD(state, SFRLOW0, 0xa0) < 0)
1605                goto err;
1606        if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x00) < 0) /* stop acq @ coarse carrier state */
1607                goto err;
1608        if (stv090x_set_srate(state, 1000000) < 0)
1609                goto err;
1610
1611        steps  = state->search_range / 1000000;
1612        if (steps <= 0)
1613                steps = 1;
1614
1615        dir = 1;
1616        freq_step = (1000000 * 256) / (state->internal->mclk / 256);
1617        freq_init = 0;
1618
1619        for (i = 0; i < steps; i++) {
1620                if (dir > 0)
1621                        freq_init = freq_init + (freq_step * i);
1622                else
1623                        freq_init = freq_init - (freq_step * i);
1624
1625                dir *= -1;
1626
1627                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5c) < 0) /* Demod RESET */
1628                        goto err;
1629                if (STV090x_WRITE_DEMOD(state, CFRINIT1, (freq_init >> 8) & 0xff) < 0)
1630                        goto err;
1631                if (STV090x_WRITE_DEMOD(state, CFRINIT0, freq_init & 0xff) < 0)
1632                        goto err;
1633                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x58) < 0) /* Demod RESET */
1634                        goto err;
1635                msleep(10);
1636
1637                agc2 = 0;
1638                for (j = 0; j < 10; j++) {
1639                        agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
1640                                STV090x_READ_DEMOD(state, AGC2I0);
1641                }
1642                agc2 /= 10;
1643                if (agc2 < agc2_min)
1644                        agc2_min = agc2;
1645        }
1646
1647        return agc2_min;
1648err:
1649        dprintk(FE_ERROR, 1, "I/O error");
1650        return -1;
1651}
1652
1653static u32 stv090x_get_srate(struct stv090x_state *state, u32 clk)
1654{
1655        u8 r3, r2, r1, r0;
1656        s32 srate, int_1, int_2, tmp_1, tmp_2;
1657
1658        r3 = STV090x_READ_DEMOD(state, SFR3);
1659        r2 = STV090x_READ_DEMOD(state, SFR2);
1660        r1 = STV090x_READ_DEMOD(state, SFR1);
1661        r0 = STV090x_READ_DEMOD(state, SFR0);
1662
1663        srate = ((r3 << 24) | (r2 << 16) | (r1 <<  8) | r0);
1664
1665        int_1 = clk >> 16;
1666        int_2 = srate >> 16;
1667
1668        tmp_1 = clk % 0x10000;
1669        tmp_2 = srate % 0x10000;
1670
1671        srate = (int_1 * int_2) +
1672                ((int_1 * tmp_2) >> 16) +
1673                ((int_2 * tmp_1) >> 16);
1674
1675        return srate;
1676}
1677
1678static u32 stv090x_srate_srch_coarse(struct stv090x_state *state)
1679{
1680        struct dvb_frontend *fe = &state->frontend;
1681
1682        int tmg_lock = 0, i;
1683        s32 tmg_cpt = 0, dir = 1, steps, cur_step = 0, freq;
1684        u32 srate_coarse = 0, agc2 = 0, car_step = 1200, reg;
1685        u32 agc2th;
1686
1687        if (state->internal->dev_ver >= 0x30)
1688                agc2th = 0x2e00;
1689        else
1690                agc2th = 0x1f00;
1691
1692        reg = STV090x_READ_DEMOD(state, DMDISTATE);
1693        STV090x_SETFIELD_Px(reg, I2C_DEMOD_MODE_FIELD, 0x1f); /* Demod RESET */
1694        if (STV090x_WRITE_DEMOD(state, DMDISTATE, reg) < 0)
1695                goto err;
1696        if (STV090x_WRITE_DEMOD(state, TMGCFG, 0x12) < 0)
1697                goto err;
1698        if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc0) < 0)
1699                goto err;
1700        if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0xf0) < 0)
1701                goto err;
1702        if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0xe0) < 0)
1703                goto err;
1704        reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1705        STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 1);
1706        STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1707        if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1708                goto err;
1709
1710        if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x83) < 0)
1711                goto err;
1712        if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xc0) < 0)
1713                goto err;
1714        if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x82) < 0)
1715                goto err;
1716        if (STV090x_WRITE_DEMOD(state, SFRLOW0, 0xa0) < 0)
1717                goto err;
1718        if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x00) < 0)
1719                goto err;
1720        if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x50) < 0)
1721                goto err;
1722
1723        if (state->internal->dev_ver >= 0x30) {
1724                if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x99) < 0)
1725                        goto err;
1726                if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x98) < 0)
1727                        goto err;
1728
1729        } else if (state->internal->dev_ver >= 0x20) {
1730                if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x6a) < 0)
1731                        goto err;
1732                if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x95) < 0)
1733                        goto err;
1734        }
1735
1736        if (state->srate <= 2000000)
1737                car_step = 1000;
1738        else if (state->srate <= 5000000)
1739                car_step = 2000;
1740        else if (state->srate <= 12000000)
1741                car_step = 3000;
1742        else
1743                car_step = 5000;
1744
1745        steps  = -1 + ((state->search_range / 1000) / car_step);
1746        steps /= 2;
1747        steps  = (2 * steps) + 1;
1748        if (steps < 0)
1749                steps = 1;
1750        else if (steps > 10) {
1751                steps = 11;
1752                car_step = (state->search_range / 1000) / 10;
1753        }
1754        cur_step = 0;
1755        dir = 1;
1756        freq = state->frequency;
1757
1758        while ((!tmg_lock) && (cur_step < steps)) {
1759                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5f) < 0) /* Demod RESET */
1760                        goto err;
1761                if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0)
1762                        goto err;
1763                if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
1764                        goto err;
1765                if (STV090x_WRITE_DEMOD(state, SFRINIT1, 0x00) < 0)
1766                        goto err;
1767                if (STV090x_WRITE_DEMOD(state, SFRINIT0, 0x00) < 0)
1768                        goto err;
1769                /* trigger acquisition */
1770                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x40) < 0)
1771                        goto err;
1772                msleep(50);
1773                for (i = 0; i < 10; i++) {
1774                        reg = STV090x_READ_DEMOD(state, DSTATUS);
1775                        if (STV090x_GETFIELD_Px(reg, TMGLOCK_QUALITY_FIELD) >= 2)
1776                                tmg_cpt++;
1777                        agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
1778                                STV090x_READ_DEMOD(state, AGC2I0);
1779                }
1780                agc2 /= 10;
1781                srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1782                cur_step++;
1783                dir *= -1;
1784                if ((tmg_cpt >= 5) && (agc2 < agc2th) &&
1785                    (srate_coarse < 50000000) && (srate_coarse > 850000))
1786                        tmg_lock = 1;
1787                else if (cur_step < steps) {
1788                        if (dir > 0)
1789                                freq += cur_step * car_step;
1790                        else
1791                                freq -= cur_step * car_step;
1792
1793                        /* Setup tuner */
1794                        if (stv090x_i2c_gate_ctrl(state, 1) < 0)
1795                                goto err;
1796
1797                        if (state->config->tuner_set_frequency) {
1798                                if (state->config->tuner_set_frequency(fe, freq) < 0)
1799                                        goto err_gateoff;
1800                        }
1801
1802                        if (state->config->tuner_set_bandwidth) {
1803                                if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
1804                                        goto err_gateoff;
1805                        }
1806
1807                        if (stv090x_i2c_gate_ctrl(state, 0) < 0)
1808                                goto err;
1809
1810                        msleep(50);
1811
1812                        if (stv090x_i2c_gate_ctrl(state, 1) < 0)
1813                                goto err;
1814
1815                        if (state->config->tuner_get_status) {
1816                                if (state->config->tuner_get_status(fe, &reg) < 0)
1817                                        goto err_gateoff;
1818                        }
1819
1820                        if (reg)
1821                                dprintk(FE_DEBUG, 1, "Tuner phase locked");
1822                        else
1823                                dprintk(FE_DEBUG, 1, "Tuner unlocked");
1824
1825                        if (stv090x_i2c_gate_ctrl(state, 0) < 0)
1826                                goto err;
1827
1828                }
1829        }
1830        if (!tmg_lock)
1831                srate_coarse = 0;
1832        else
1833                srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1834
1835        return srate_coarse;
1836
1837err_gateoff:
1838        stv090x_i2c_gate_ctrl(state, 0);
1839err:
1840        dprintk(FE_ERROR, 1, "I/O error");
1841        return -1;
1842}
1843
1844static u32 stv090x_srate_srch_fine(struct stv090x_state *state)
1845{
1846        u32 srate_coarse, freq_coarse, sym, reg;
1847
1848        srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1849        freq_coarse  = STV090x_READ_DEMOD(state, CFR2) << 8;
1850        freq_coarse |= STV090x_READ_DEMOD(state, CFR1);
1851        sym = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1852
1853        if (sym < state->srate)
1854                srate_coarse = 0;
1855        else {
1856                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0) /* Demod RESET */
1857                        goto err;
1858                if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0)
1859                        goto err;
1860                if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0x20) < 0)
1861                        goto err;
1862                if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0x00) < 0)
1863                        goto err;
1864                if (STV090x_WRITE_DEMOD(state, TMGCFG, 0xd2) < 0)
1865                        goto err;
1866                reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1867                STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00);
1868                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1869                        goto err;
1870
1871                if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
1872                        goto err;
1873
1874                if (state->internal->dev_ver >= 0x30) {
1875                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x79) < 0)
1876                                goto err;
1877                } else if (state->internal->dev_ver >= 0x20) {
1878                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
1879                                goto err;
1880                }
1881
1882                if (srate_coarse > 3000000) {
1883                        sym  = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1884                        sym  = (sym / 1000) * 65536;
1885                        sym /= (state->internal->mclk / 1000);
1886                        if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0)
1887                                goto err;
1888                        if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0)
1889                                goto err;
1890                        sym  = 10 * (srate_coarse / 13); /* SFRLOW = SFR - 30% */
1891                        sym  = (sym / 1000) * 65536;
1892                        sym /= (state->internal->mclk / 1000);
1893                        if (STV090x_WRITE_DEMOD(state, SFRLOW1, (sym >> 8) & 0x7f) < 0)
1894                                goto err;
1895                        if (STV090x_WRITE_DEMOD(state, SFRLOW0, sym & 0xff) < 0)
1896                                goto err;
1897                        sym  = (srate_coarse / 1000) * 65536;
1898                        sym /= (state->internal->mclk / 1000);
1899                        if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0xff) < 0)
1900                                goto err;
1901                        if (STV090x_WRITE_DEMOD(state, SFRINIT0, sym & 0xff) < 0)
1902                                goto err;
1903                } else {
1904                        sym  = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1905                        sym  = (sym / 100) * 65536;
1906                        sym /= (state->internal->mclk / 100);
1907                        if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0)
1908                                goto err;
1909                        if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0)
1910                                goto err;
1911                        sym  = 10 * (srate_coarse / 14); /* SFRLOW = SFR - 30% */
1912                        sym  = (sym / 100) * 65536;
1913                        sym /= (state->internal->mclk / 100);
1914                        if (STV090x_WRITE_DEMOD(state, SFRLOW1, (sym >> 8) & 0x7f) < 0)
1915                                goto err;
1916                        if (STV090x_WRITE_DEMOD(state, SFRLOW0, sym & 0xff) < 0)
1917                                goto err;
1918                        sym  = (srate_coarse / 100) * 65536;
1919                        sym /= (state->internal->mclk / 100);
1920                        if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0xff) < 0)
1921                                goto err;
1922                        if (STV090x_WRITE_DEMOD(state, SFRINIT0, sym & 0xff) < 0)
1923                                goto err;
1924                }
1925                if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x20) < 0)
1926                        goto err;
1927                if (STV090x_WRITE_DEMOD(state, CFRINIT1, (freq_coarse >> 8) & 0xff) < 0)
1928                        goto err;
1929                if (STV090x_WRITE_DEMOD(state, CFRINIT0, freq_coarse & 0xff) < 0)
1930                        goto err;
1931                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0) /* trigger acquisition */
1932                        goto err;
1933        }
1934
1935        return srate_coarse;
1936
1937err:
1938        dprintk(FE_ERROR, 1, "I/O error");
1939        return -1;
1940}
1941
1942static int stv090x_get_dmdlock(struct stv090x_state *state, s32 timeout)
1943{
1944        s32 timer = 0, lock = 0;
1945        u32 reg;
1946        u8 stat;
1947
1948        while ((timer < timeout) && (!lock)) {
1949                reg = STV090x_READ_DEMOD(state, DMDSTATE);
1950                stat = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
1951
1952                switch (stat) {
1953                case 0: /* searching */
1954                case 1: /* first PLH detected */
1955                default:
1956                        dprintk(FE_DEBUG, 1, "Demodulator searching ..");
1957                        lock = 0;
1958                        break;
1959                case 2: /* DVB-S2 mode */
1960                case 3: /* DVB-S1/legacy mode */
1961                        reg = STV090x_READ_DEMOD(state, DSTATUS);
1962                        lock = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
1963                        break;
1964                }
1965
1966                if (!lock)
1967                        msleep(10);
1968                else
1969                        dprintk(FE_DEBUG, 1, "Demodulator acquired LOCK");
1970
1971                timer += 10;
1972        }
1973        return lock;
1974}
1975
1976static int stv090x_blind_search(struct stv090x_state *state)
1977{
1978        u32 agc2, reg, srate_coarse;
1979        s32 cpt_fail, agc2_ovflw, i;
1980        u8 k_ref, k_max, k_min;
1981        int coarse_fail = 0;
1982        int lock;
1983
1984        k_max = 110;
1985        k_min = 10;
1986
1987        agc2 = stv090x_get_agc2_min_level(state);
1988
1989        if (agc2 > STV090x_SEARCH_AGC2_TH(state->internal->dev_ver)) {
1990                lock = 0;
1991        } else {
1992
1993                if (state->internal->dev_ver <= 0x20) {
1994                        if (STV090x_WRITE_DEMOD(state, CARCFG, 0xc4) < 0)
1995                                goto err;
1996                } else {
1997                        /* > Cut 3 */
1998                        if (STV090x_WRITE_DEMOD(state, CARCFG, 0x06) < 0)
1999                                goto err;
2000                }
2001
2002                if (STV090x_WRITE_DEMOD(state, RTCS2, 0x44) < 0)
2003                        goto err;
2004
2005                if (state->internal->dev_ver >= 0x20) {
2006                        if (STV090x_WRITE_DEMOD(state, EQUALCFG, 0x41) < 0)
2007                                goto err;
2008                        if (STV090x_WRITE_DEMOD(state, FFECFG, 0x41) < 0)
2009                                goto err;
2010                        if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x82) < 0)
2011                                goto err;
2012                        if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x00) < 0) /* set viterbi hysteresis */
2013                                goto err;
2014                }
2015
2016                k_ref = k_max;
2017                do {
2018                        if (STV090x_WRITE_DEMOD(state, KREFTMG, k_ref) < 0)
2019                                goto err;
2020                        if (stv090x_srate_srch_coarse(state) != 0) {
2021                                srate_coarse = stv090x_srate_srch_fine(state);
2022                                if (srate_coarse != 0) {
2023                                        stv090x_get_lock_tmg(state);
2024                                        lock = stv090x_get_dmdlock(state,
2025                                                        state->DemodTimeout);
2026                                } else {
2027                                        lock = 0;
2028                                }
2029                        } else {
2030                                cpt_fail = 0;
2031                                agc2_ovflw = 0;
2032                                for (i = 0; i < 10; i++) {
2033                                        agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
2034                                                STV090x_READ_DEMOD(state, AGC2I0);
2035                                        if (agc2 >= 0xff00)
2036                                                agc2_ovflw++;
2037                                        reg = STV090x_READ_DEMOD(state, DSTATUS2);
2038                                        if ((STV090x_GETFIELD_Px(reg, CFR_OVERFLOW_FIELD) == 0x01) &&
2039                                            (STV090x_GETFIELD_Px(reg, DEMOD_DELOCK_FIELD) == 0x01))
2040
2041                                                cpt_fail++;
2042                                }
2043                                if ((cpt_fail > 7) || (agc2_ovflw > 7))
2044                                        coarse_fail = 1;
2045
2046                                lock = 0;
2047                        }
2048                        k_ref -= 20;
2049                } while ((k_ref >= k_min) && (!lock) && (!coarse_fail));
2050        }
2051
2052        return lock;
2053
2054err:
2055        dprintk(FE_ERROR, 1, "I/O error");
2056        return -1;
2057}
2058
2059static int stv090x_chk_tmg(struct stv090x_state *state)
2060{
2061        u32 reg;
2062        s32 tmg_cpt = 0, i;
2063        u8 freq, tmg_thh, tmg_thl;
2064        int tmg_lock = 0;
2065
2066        freq = STV090x_READ_DEMOD(state, CARFREQ);
2067        tmg_thh = STV090x_READ_DEMOD(state, TMGTHRISE);
2068        tmg_thl = STV090x_READ_DEMOD(state, TMGTHFALL);
2069        if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0x20) < 0)
2070                goto err;
2071        if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0x00) < 0)
2072                goto err;
2073
2074        reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2075        STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00); /* stop carrier offset search */
2076        if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2077                goto err;
2078        if (STV090x_WRITE_DEMOD(state, RTC, 0x80) < 0)
2079                goto err;
2080
2081        if (STV090x_WRITE_DEMOD(state, RTCS2, 0x40) < 0)
2082                goto err;
2083        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x00) < 0)
2084                goto err;
2085
2086        if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0) /* set car ofset to 0 */
2087                goto err;
2088        if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
2089                goto err;
2090        if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x65) < 0)
2091                goto err;
2092
2093        if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0) /* trigger acquisition */
2094                goto err;
2095        msleep(10);
2096
2097        for (i = 0; i < 10; i++) {
2098                reg = STV090x_READ_DEMOD(state, DSTATUS);
2099                if (STV090x_GETFIELD_Px(reg, TMGLOCK_QUALITY_FIELD) >= 2)
2100                        tmg_cpt++;
2101                msleep(1);
2102        }
2103        if (tmg_cpt >= 3)
2104                tmg_lock = 1;
2105
2106        if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
2107                goto err;
2108        if (STV090x_WRITE_DEMOD(state, RTC, 0x88) < 0) /* DVB-S1 timing */
2109                goto err;
2110        if (STV090x_WRITE_DEMOD(state, RTCS2, 0x68) < 0) /* DVB-S2 timing */
2111                goto err;
2112
2113        if (STV090x_WRITE_DEMOD(state, CARFREQ, freq) < 0)
2114                goto err;
2115        if (STV090x_WRITE_DEMOD(state, TMGTHRISE, tmg_thh) < 0)
2116                goto err;
2117        if (STV090x_WRITE_DEMOD(state, TMGTHFALL, tmg_thl) < 0)
2118                goto err;
2119
2120        return  tmg_lock;
2121
2122err:
2123        dprintk(FE_ERROR, 1, "I/O error");
2124        return -1;
2125}
2126
2127static int stv090x_get_coldlock(struct stv090x_state *state, s32 timeout_dmd)
2128{
2129        struct dvb_frontend *fe = &state->frontend;
2130
2131        u32 reg;
2132        s32 car_step, steps, cur_step, dir, freq, timeout_lock;
2133        int lock;
2134
2135        if (state->srate >= 10000000)
2136                timeout_lock = timeout_dmd / 3;
2137        else
2138                timeout_lock = timeout_dmd / 2;
2139
2140        lock = stv090x_get_dmdlock(state, timeout_lock); /* cold start wait */
2141        if (lock)
2142                return lock;
2143
2144        if (state->srate >= 10000000) {
2145                if (stv090x_chk_tmg(state)) {
2146                        if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
2147                                goto err;
2148                        if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
2149                                goto err;
2150                        return stv090x_get_dmdlock(state, timeout_dmd);
2151                }
2152                return 0;
2153        }
2154
2155        if (state->srate <= 4000000)
2156                car_step = 1000;
2157        else if (state->srate <= 7000000)
2158                car_step = 2000;
2159        else if (state->srate <= 10000000)
2160                car_step = 3000;
2161        else
2162                car_step = 5000;
2163
2164        steps  = (state->search_range / 1000) / car_step;
2165        steps /= 2;
2166        steps  = 2 * (steps + 1);
2167        if (steps < 0)
2168                steps = 2;
2169        else if (steps > 12)
2170                steps = 12;
2171
2172        cur_step = 1;
2173        dir = 1;
2174
2175        freq = state->frequency;
2176        state->tuner_bw = stv090x_car_width(state->srate, state->rolloff) + state->srate;
2177        while ((cur_step <= steps) && (!lock)) {
2178                if (dir > 0)
2179                        freq += cur_step * car_step;
2180                else
2181                        freq -= cur_step * car_step;
2182
2183                /* Setup tuner */
2184                if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2185                        goto err;
2186
2187                if (state->config->tuner_set_frequency) {
2188                        if (state->config->tuner_set_frequency(fe, freq) < 0)
2189                                goto err_gateoff;
2190                }
2191
2192                if (state->config->tuner_set_bandwidth) {
2193                        if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
2194                                goto err_gateoff;
2195                }
2196
2197                if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2198                        goto err;
2199
2200                msleep(50);
2201
2202                if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2203                        goto err;
2204
2205                if (state->config->tuner_get_status) {
2206                        if (state->config->tuner_get_status(fe, &reg) < 0)
2207                                goto err_gateoff;
2208                        if (reg)
2209                                dprintk(FE_DEBUG, 1, "Tuner phase locked");
2210                        else
2211                                dprintk(FE_DEBUG, 1, "Tuner unlocked");
2212                }
2213
2214                if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2215                        goto err;
2216
2217                STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c);
2218                if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0)
2219                        goto err;
2220                if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
2221                        goto err;
2222                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
2223                        goto err;
2224                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
2225                        goto err;
2226                lock = stv090x_get_dmdlock(state, (timeout_dmd / 3));
2227
2228                dir *= -1;
2229                cur_step++;
2230        }
2231
2232        return lock;
2233
2234err_gateoff:
2235        stv090x_i2c_gate_ctrl(state, 0);
2236err:
2237        dprintk(FE_ERROR, 1, "I/O error");
2238        return -1;
2239}
2240
2241static int stv090x_get_loop_params(struct stv090x_state *state, s32 *freq_inc, s32 *timeout_sw, s32 *steps)
2242{
2243        s32 timeout, inc, steps_max, srate, car_max;
2244
2245        srate = state->srate;
2246        car_max = state->search_range / 1000;
2247        car_max += car_max / 10;
2248        car_max  = 65536 * (car_max / 2);
2249        car_max /= (state->internal->mclk / 1000);
2250
2251        if (car_max > 0x4000)
2252                car_max = 0x4000 ; /* maxcarrier should be<= +-1/4 Mclk */
2253
2254        inc  = srate;
2255        inc /= state->internal->mclk / 1000;
2256        inc *= 256;
2257        inc *= 256;
2258        inc /= 1000;
2259
2260        switch (state->search_mode) {
2261        case STV090x_SEARCH_DVBS1:
2262        case STV090x_SEARCH_DSS:
2263                inc *= 3; /* freq step = 3% of srate */
2264                timeout = 20;
2265                break;
2266
2267        case STV090x_SEARCH_DVBS2:
2268                inc *= 4;
2269                timeout = 25;
2270                break;
2271
2272        case STV090x_SEARCH_AUTO:
2273        default:
2274                inc *= 3;
2275                timeout = 25;
2276                break;
2277        }
2278        inc /= 100;
2279        if ((inc > car_max) || (inc < 0))
2280                inc = car_max / 2; /* increment <= 1/8 Mclk */
2281
2282        timeout *= 27500; /* 27.5 Msps reference */
2283        if (srate > 0)
2284                timeout /= (srate / 1000);
2285
2286        if ((timeout > 100) || (timeout < 0))
2287                timeout = 100;
2288
2289        steps_max = (car_max / inc) + 1; /* min steps = 3 */
2290        if ((steps_max > 100) || (steps_max < 0)) {
2291                steps_max = 100; /* max steps <= 100 */
2292                inc = car_max / steps_max;
2293        }
2294        *freq_inc = inc;
2295        *timeout_sw = timeout;
2296        *steps = steps_max;
2297
2298        return 0;
2299}
2300
2301static int stv090x_chk_signal(struct stv090x_state *state)
2302{
2303        s32 offst_car, agc2, car_max;
2304        int no_signal;
2305
2306        offst_car  = STV090x_READ_DEMOD(state, CFR2) << 8;
2307        offst_car |= STV090x_READ_DEMOD(state, CFR1);
2308        offst_car = comp2(offst_car, 16);
2309
2310        agc2  = STV090x_READ_DEMOD(state, AGC2I1) << 8;
2311        agc2 |= STV090x_READ_DEMOD(state, AGC2I0);
2312        car_max = state->search_range / 1000;
2313
2314        car_max += (car_max / 10); /* 10% margin */
2315        car_max  = (65536 * car_max / 2);
2316        car_max /= state->internal->mclk / 1000;
2317
2318        if (car_max > 0x4000)
2319                car_max = 0x4000;
2320
2321        if ((agc2 > 0x2000) || (offst_car > 2 * car_max) || (offst_car < -2 * car_max)) {
2322                no_signal = 1;
2323                dprintk(FE_DEBUG, 1, "No Signal");
2324        } else {
2325                no_signal = 0;
2326                dprintk(FE_DEBUG, 1, "Found Signal");
2327        }
2328
2329        return no_signal;
2330}
2331
2332static int stv090x_search_car_loop(struct stv090x_state *state, s32 inc, s32 timeout, int zigzag, s32 steps_max)
2333{
2334        int no_signal, lock = 0;
2335        s32 cpt_step = 0, offst_freq, car_max;
2336        u32 reg;
2337
2338        car_max  = state->search_range / 1000;
2339        car_max += (car_max / 10);
2340        car_max  = (65536 * car_max / 2);
2341        car_max /= (state->internal->mclk / 1000);
2342        if (car_max > 0x4000)
2343                car_max = 0x4000;
2344
2345        if (zigzag)
2346                offst_freq = 0;
2347        else
2348                offst_freq = -car_max + inc;
2349
2350        do {
2351                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c) < 0)
2352                        goto err;
2353                if (STV090x_WRITE_DEMOD(state, CFRINIT1, ((offst_freq / 256) & 0xff)) < 0)
2354                        goto err;
2355                if (STV090x_WRITE_DEMOD(state, CFRINIT0, offst_freq & 0xff) < 0)
2356                        goto err;
2357                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
2358                        goto err;
2359
2360                reg = STV090x_READ_DEMOD(state, PDELCTRL1);
2361                STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x1); /* stop DVB-S2 packet delin */
2362                if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
2363                        goto err;
2364
2365                if (zigzag) {
2366                        if (offst_freq >= 0)
2367                                offst_freq = -offst_freq - 2 * inc;
2368                        else
2369                                offst_freq = -offst_freq;
2370                } else {
2371                        offst_freq += 2 * inc;
2372                }
2373
2374                cpt_step++;
2375
2376                lock = stv090x_get_dmdlock(state, timeout);
2377                no_signal = stv090x_chk_signal(state);
2378
2379        } while ((!lock) &&
2380                 (!no_signal) &&
2381                  ((offst_freq - inc) < car_max) &&
2382                  ((offst_freq + inc) > -car_max) &&
2383                  (cpt_step < steps_max));
2384
2385        reg = STV090x_READ_DEMOD(state, PDELCTRL1);
2386        STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0);
2387        if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
2388                        goto err;
2389
2390        return lock;
2391err:
2392        dprintk(FE_ERROR, 1, "I/O error");
2393        return -1;
2394}
2395
2396static int stv090x_sw_algo(struct stv090x_state *state)
2397{
2398        int no_signal, zigzag, lock = 0;
2399        u32 reg;
2400
2401        s32 dvbs2_fly_wheel;
2402        s32 inc, timeout_step, trials, steps_max;
2403
2404        /* get params */
2405        stv090x_get_loop_params(state, &inc, &timeout_step, &steps_max);
2406
2407        switch (state->search_mode) {
2408        case STV090x_SEARCH_DVBS1:
2409        case STV090x_SEARCH_DSS:
2410                /* accelerate the frequency detector */
2411                if (state->internal->dev_ver >= 0x20) {
2412                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x3B) < 0)
2413                                goto err;
2414                }
2415
2416                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x49) < 0)
2417                        goto err;
2418                zigzag = 0;
2419                break;
2420
2421        case STV090x_SEARCH_DVBS2:
2422                if (state->internal->dev_ver >= 0x20) {
2423                        if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2424                                goto err;
2425                }
2426
2427                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x89) < 0)
2428                        goto err;
2429                zigzag = 1;
2430                break;
2431
2432        case STV090x_SEARCH_AUTO:
2433        default:
2434                /* accelerate the frequency detector */
2435                if (state->internal->dev_ver >= 0x20) {
2436                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x3b) < 0)
2437                                goto err;
2438                        if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2439                                goto err;
2440                }
2441
2442                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0xc9) < 0)
2443                        goto err;
2444                zigzag = 0;
2445                break;
2446        }
2447
2448        trials = 0;
2449        do {
2450                lock = stv090x_search_car_loop(state, inc, timeout_step, zigzag, steps_max);
2451                no_signal = stv090x_chk_signal(state);
2452                trials++;
2453
2454                /*run the SW search 2 times maximum*/
2455                if (lock || no_signal || (trials == 2)) {
2456                        /*Check if the demod is not losing lock in DVBS2*/
2457                        if (state->internal->dev_ver >= 0x20) {
2458                                if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
2459                                        goto err;
2460                                if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x9e) < 0)
2461                                        goto err;
2462                        }
2463
2464                        reg = STV090x_READ_DEMOD(state, DMDSTATE);
2465                        if ((lock) && (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == STV090x_DVBS2)) {
2466                                /*Check if the demod is not losing lock in DVBS2*/
2467                                msleep(timeout_step);
2468                                reg = STV090x_READ_DEMOD(state, DMDFLYW);
2469                                dvbs2_fly_wheel = STV090x_GETFIELD_Px(reg, FLYWHEEL_CPT_FIELD);
2470                                if (dvbs2_fly_wheel < 0xd) {     /*if correct frames is decrementing */
2471                                        msleep(timeout_step);
2472                                        reg = STV090x_READ_DEMOD(state, DMDFLYW);
2473                                        dvbs2_fly_wheel = STV090x_GETFIELD_Px(reg, FLYWHEEL_CPT_FIELD);
2474                                }
2475                                if (dvbs2_fly_wheel < 0xd) {
2476                                        /*FALSE lock, The demod is losing lock */
2477                                        lock = 0;
2478                                        if (trials < 2) {
2479                                                if (state->internal->dev_ver >= 0x20) {
2480                                                        if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2481                                                                goto err;
2482                                                }
2483
2484                                                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x89) < 0)
2485                                                        goto err;
2486                                        }
2487                                }
2488                        }
2489                }
2490        } while ((!lock) && (trials < 2) && (!no_signal));
2491
2492        return lock;
2493err:
2494        dprintk(FE_ERROR, 1, "I/O error");
2495        return -1;
2496}
2497
2498static enum stv090x_delsys stv090x_get_std(struct stv090x_state *state)
2499{
2500        u32 reg;
2501        enum stv090x_delsys delsys;
2502
2503        reg = STV090x_READ_DEMOD(state, DMDSTATE);
2504        if (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == 2)
2505                delsys = STV090x_DVBS2;
2506        else if (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == 3) {
2507                reg = STV090x_READ_DEMOD(state, FECM);
2508                if (STV090x_GETFIELD_Px(reg, DSS_DVB_FIELD) == 1)
2509                        delsys = STV090x_DSS;
2510                else
2511                        delsys = STV090x_DVBS1;
2512        } else {
2513                delsys = STV090x_ERROR;
2514        }
2515
2516        return delsys;
2517}
2518
2519/* in Hz */
2520static s32 stv090x_get_car_freq(struct stv090x_state *state, u32 mclk)
2521{
2522        s32 derot, int_1, int_2, tmp_1, tmp_2;
2523
2524        derot  = STV090x_READ_DEMOD(state, CFR2) << 16;
2525        derot |= STV090x_READ_DEMOD(state, CFR1) <<  8;
2526        derot |= STV090x_READ_DEMOD(state, CFR0);
2527
2528        derot = comp2(derot, 24);
2529        int_1 = mclk >> 12;
2530        int_2 = derot >> 12;
2531
2532        /* carrier_frequency = MasterClock * Reg / 2^24 */
2533        tmp_1 = mclk % 0x1000;
2534        tmp_2 = derot % 0x1000;
2535
2536        derot = (int_1 * int_2) +
2537                ((int_1 * tmp_2) >> 12) +
2538                ((int_2 * tmp_1) >> 12);
2539
2540        return derot;
2541}
2542
2543static int stv090x_get_viterbi(struct stv090x_state *state)
2544{
2545        u32 reg, rate;
2546
2547        reg = STV090x_READ_DEMOD(state, VITCURPUN);
2548        rate = STV090x_GETFIELD_Px(reg, VIT_CURPUN_FIELD);
2549
2550        switch (rate) {
2551        case 13:
2552                state->fec = STV090x_PR12;
2553                break;
2554
2555        case 18:
2556                state->fec = STV090x_PR23;
2557                break;
2558
2559        case 21:
2560                state->fec = STV090x_PR34;
2561                break;
2562
2563        case 24:
2564                state->fec = STV090x_PR56;
2565                break;
2566
2567        case 25:
2568                state->fec = STV090x_PR67;
2569                break;
2570
2571        case 26:
2572                state->fec = STV090x_PR78;
2573                break;
2574
2575        default:
2576                state->fec = STV090x_PRERR;
2577                break;
2578        }
2579
2580        return 0;
2581}
2582
2583static enum stv090x_signal_state stv090x_get_sig_params(struct stv090x_state *state)
2584{
2585        struct dvb_frontend *fe = &state->frontend;
2586
2587        u8 tmg;
2588        u32 reg;
2589        s32 i = 0, offst_freq;
2590
2591        msleep(5);
2592
2593        if (state->algo == STV090x_BLIND_SEARCH) {
2594                tmg = STV090x_READ_DEMOD(state, TMGREG2);
2595                STV090x_WRITE_DEMOD(state, SFRSTEP, 0x5c);
2596                while ((i <= 50) && (tmg != 0) && (tmg != 0xff)) {
2597                        tmg = STV090x_READ_DEMOD(state, TMGREG2);
2598                        msleep(5);
2599                        i += 5;
2600                }
2601        }
2602        state->delsys = stv090x_get_std(state);
2603
2604        if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2605                goto err;
2606
2607        if (state->config->tuner_get_frequency) {
2608                if (state->config->tuner_get_frequency(fe, &state->frequency) < 0)
2609                        goto err_gateoff;
2610        }
2611
2612        if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2613                goto err;
2614
2615        offst_freq = stv090x_get_car_freq(state, state->internal->mclk) / 1000;
2616        state->frequency += offst_freq;
2617
2618        if (stv090x_get_viterbi(state) < 0)
2619                goto err;
2620
2621        reg = STV090x_READ_DEMOD(state, DMDMODCOD);
2622        state->modcod = STV090x_GETFIELD_Px(reg, DEMOD_MODCOD_FIELD);
2623        state->pilots = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) & 0x01;
2624        state->frame_len = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) >> 1;
2625        reg = STV090x_READ_DEMOD(state, TMGOBS);
2626        state->rolloff = STV090x_GETFIELD_Px(reg, ROLLOFF_STATUS_FIELD);
2627        reg = STV090x_READ_DEMOD(state, FECM);
2628        state->inversion = STV090x_GETFIELD_Px(reg, IQINV_FIELD);
2629
2630        if ((state->algo == STV090x_BLIND_SEARCH) || (state->srate < 10000000)) {
2631
2632                if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2633                        goto err;
2634
2635                if (state->config->tuner_get_frequency) {
2636                        if (state->config->tuner_get_frequency(fe, &state->frequency) < 0)
2637                                goto err_gateoff;
2638                }
2639
2640                if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2641                        goto err;
2642
2643                if (abs(offst_freq) <= ((state->search_range / 2000) + 500))
2644                        return STV090x_RANGEOK;
2645                else if (abs(offst_freq) <= (stv090x_car_width(state->srate, state->rolloff) / 2000))
2646                        return STV090x_RANGEOK;
2647        } else {
2648                if (abs(offst_freq) <= ((state->search_range / 2000) + 500))
2649                        return STV090x_RANGEOK;
2650        }
2651
2652        return STV090x_OUTOFRANGE;
2653
2654err_gateoff:
2655        stv090x_i2c_gate_ctrl(state, 0);
2656err:
2657        dprintk(FE_ERROR, 1, "I/O error");
2658        return -1;
2659}
2660
2661static u32 stv090x_get_tmgoffst(struct stv090x_state *state, u32 srate)
2662{
2663        s32 offst_tmg;
2664
2665        offst_tmg  = STV090x_READ_DEMOD(state, TMGREG2) << 16;
2666        offst_tmg |= STV090x_READ_DEMOD(state, TMGREG1) <<  8;
2667        offst_tmg |= STV090x_READ_DEMOD(state, TMGREG0);
2668
2669        offst_tmg = comp2(offst_tmg, 24); /* 2's complement */
2670        if (!offst_tmg)
2671                offst_tmg = 1;
2672
2673        offst_tmg  = ((s32) srate * 10) / ((s32) 0x1000000 / offst_tmg);
2674        offst_tmg /= 320;
2675
2676        return offst_tmg;
2677}
2678
2679static u8 stv090x_optimize_carloop(struct stv090x_state *state, enum stv090x_modcod modcod, s32 pilots)
2680{
2681        u8 aclc = 0x29;
2682        s32 i;
2683        struct stv090x_long_frame_crloop *car_loop, *car_loop_qpsk_low, *car_loop_apsk_low;
2684
2685        if (state->internal->dev_ver == 0x20) {
2686                car_loop                = stv090x_s2_crl_cut20;
2687                car_loop_qpsk_low       = stv090x_s2_lowqpsk_crl_cut20;
2688                car_loop_apsk_low       = stv090x_s2_apsk_crl_cut20;
2689        } else {
2690                /* >= Cut 3 */
2691                car_loop                = stv090x_s2_crl_cut30;
2692                car_loop_qpsk_low       = stv090x_s2_lowqpsk_crl_cut30;
2693                car_loop_apsk_low       = stv090x_s2_apsk_crl_cut30;
2694        }
2695
2696        if (modcod < STV090x_QPSK_12) {
2697                i = 0;
2698                while ((i < 3) && (modcod != car_loop_qpsk_low[i].modcod))
2699                        i++;
2700
2701                if (i >= 3)
2702                        i = 2;
2703
2704        } else {
2705                i = 0;
2706                while ((i < 14) && (modcod != car_loop[i].modcod))
2707                        i++;
2708
2709                if (i >= 14) {
2710                        i = 0;
2711                        while ((i < 11) && (modcod != car_loop_apsk_low[i].modcod))
2712                                i++;
2713
2714                        if (i >= 11)
2715                                i = 10;
2716                }
2717        }
2718
2719        if (modcod <= STV090x_QPSK_25) {
2720                if (pilots) {
2721                        if (state->srate <= 3000000)
2722                                aclc = car_loop_qpsk_low[i].crl_pilots_on_2;
2723                        else if (state->srate <= 7000000)
2724                                aclc = car_loop_qpsk_low[i].crl_pilots_on_5;
2725                        else if (state->srate <= 15000000)
2726                                aclc = car_loop_qpsk_low[i].crl_pilots_on_10;
2727                        else if (state->srate <= 25000000)
2728                                aclc = car_loop_qpsk_low[i].crl_pilots_on_20;
2729                        else
2730                                aclc = car_loop_qpsk_low[i].crl_pilots_on_30;
2731                } else {
2732                        if (state->srate <= 3000000)
2733                                aclc = car_loop_qpsk_low[i].crl_pilots_off_2;
2734                        else if (state->srate <= 7000000)
2735                                aclc = car_loop_qpsk_low[i].crl_pilots_off_5;
2736                        else if (state->srate <= 15000000)
2737                                aclc = car_loop_qpsk_low[i].crl_pilots_off_10;
2738                        else if (state->srate <= 25000000)
2739                                aclc = car_loop_qpsk_low[i].crl_pilots_off_20;
2740                        else
2741                                aclc = car_loop_qpsk_low[i].crl_pilots_off_30;
2742                }
2743
2744        } else if (modcod <= STV090x_8PSK_910) {
2745                if (pilots) {
2746                        if (state->srate <= 3000000)
2747                                aclc = car_loop[i].crl_pilots_on_2;
2748                        else if (state->srate <= 7000000)
2749                                aclc = car_loop[i].crl_pilots_on_5;
2750                        else if (state->srate <= 15000000)
2751                                aclc = car_loop[i].crl_pilots_on_10;
2752                        else if (state->srate <= 25000000)
2753                                aclc = car_loop[i].crl_pilots_on_20;
2754                        else
2755                                aclc = car_loop[i].crl_pilots_on_30;
2756                } else {
2757                        if (state->srate <= 3000000)
2758                                aclc = car_loop[i].crl_pilots_off_2;
2759                        else if (state->srate <= 7000000)
2760                                aclc = car_loop[i].crl_pilots_off_5;
2761                        else if (state->srate <= 15000000)
2762                                aclc = car_loop[i].crl_pilots_off_10;
2763                        else if (state->srate <= 25000000)
2764                                aclc = car_loop[i].crl_pilots_off_20;
2765                        else
2766                                aclc = car_loop[i].crl_pilots_off_30;
2767                }
2768        } else { /* 16APSK and 32APSK */
2769                /*
2770                 * This should never happen in practice, except if
2771                 * something is really wrong at the car_loop table.
2772                 */
2773                if (i >= 11)
2774                        i = 10;
2775                if (state->srate <= 3000000)
2776                        aclc = car_loop_apsk_low[i].crl_pilots_on_2;
2777                else if (state->srate <= 7000000)
2778                        aclc = car_loop_apsk_low[i].crl_pilots_on_5;
2779                else if (state->srate <= 15000000)
2780                        aclc = car_loop_apsk_low[i].crl_pilots_on_10;
2781                else if (state->srate <= 25000000)
2782                        aclc = car_loop_apsk_low[i].crl_pilots_on_20;
2783                else
2784                        aclc = car_loop_apsk_low[i].crl_pilots_on_30;
2785        }
2786
2787        return aclc;
2788}
2789
2790static u8 stv090x_optimize_carloop_short(struct stv090x_state *state)
2791{
2792        struct stv090x_short_frame_crloop *short_crl = NULL;
2793        s32 index = 0;
2794        u8 aclc = 0x0b;
2795
2796        switch (state->modulation) {
2797        case STV090x_QPSK:
2798        default:
2799                index = 0;
2800                break;
2801        case STV090x_8PSK:
2802                index = 1;
2803                break;
2804        case STV090x_16APSK:
2805                index = 2;
2806                break;
2807        case STV090x_32APSK:
2808                index = 3;
2809                break;
2810        }
2811
2812        if (state->internal->dev_ver >= 0x30) {
2813                /* Cut 3.0 and up */
2814                short_crl = stv090x_s2_short_crl_cut30;
2815        } else {
2816                /* Cut 2.0 and up: we don't support cuts older than 2.0 */
2817                short_crl = stv090x_s2_short_crl_cut20;
2818        }
2819
2820        if (state->srate <= 3000000)
2821                aclc = short_crl[index].crl_2;
2822        else if (state->srate <= 7000000)
2823                aclc = short_crl[index].crl_5;
2824        else if (state->srate <= 15000000)
2825                aclc = short_crl[index].crl_10;
2826        else if (state->srate <= 25000000)
2827                aclc = short_crl[index].crl_20;
2828        else
2829                aclc = short_crl[index].crl_30;
2830
2831        return aclc;
2832}
2833
2834static int stv090x_optimize_track(struct stv090x_state *state)
2835{
2836        struct dvb_frontend *fe = &state->frontend;
2837
2838        enum stv090x_modcod modcod;
2839
2840        s32 srate, pilots, aclc, f_1, f_0, i = 0, blind_tune = 0;
2841        u32 reg;
2842
2843        srate  = stv090x_get_srate(state, state->internal->mclk);
2844        srate += stv090x_get_tmgoffst(state, srate);
2845
2846        switch (state->delsys) {
2847        case STV090x_DVBS1:
2848        case STV090x_DSS:
2849                if (state->search_mode == STV090x_SEARCH_AUTO) {
2850                        reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2851                        STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
2852                        STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
2853                        if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2854                                goto err;
2855                }
2856                reg = STV090x_READ_DEMOD(state, DEMOD);
2857                STV090x_SETFIELD_Px(reg, ROLLOFF_CONTROL_FIELD, state->rolloff);
2858                STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 0x01);
2859                if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
2860                        goto err;
2861
2862                if (state->internal->dev_ver >= 0x30) {
2863                        if (stv090x_get_viterbi(state) < 0)
2864                                goto err;
2865
2866                        if (state->fec == STV090x_PR12) {
2867                                if (STV090x_WRITE_DEMOD(state, GAUSSR0, 0x98) < 0)
2868                                        goto err;
2869                                if (STV090x_WRITE_DEMOD(state, CCIR0, 0x18) < 0)
2870                                        goto err;
2871                        } else {
2872                                if (STV090x_WRITE_DEMOD(state, GAUSSR0, 0x18) < 0)
2873                                        goto err;
2874                                if (STV090x_WRITE_DEMOD(state, CCIR0, 0x18) < 0)
2875                                        goto err;
2876                        }
2877                }
2878
2879                if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x75) < 0)
2880                        goto err;
2881                break;
2882
2883        case STV090x_DVBS2:
2884                reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2885                STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
2886                STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
2887                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2888                        goto err;
2889                if (state->internal->dev_ver >= 0x30) {
2890                        if (STV090x_WRITE_DEMOD(state, ACLC, 0) < 0)
2891                                goto err;
2892                        if (STV090x_WRITE_DEMOD(state, BCLC, 0) < 0)
2893                                goto err;
2894                }
2895                if (state->frame_len == STV090x_LONG_FRAME) {
2896                        reg = STV090x_READ_DEMOD(state, DMDMODCOD);
2897                        modcod = STV090x_GETFIELD_Px(reg, DEMOD_MODCOD_FIELD);
2898                        pilots = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) & 0x01;
2899                        aclc = stv090x_optimize_carloop(state, modcod, pilots);
2900                        if (modcod <= STV090x_QPSK_910) {
2901                                STV090x_WRITE_DEMOD(state, ACLC2S2Q, aclc);
2902                        } else if (modcod <= STV090x_8PSK_910) {
2903                                if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2904                                        goto err;
2905                                if (STV090x_WRITE_DEMOD(state, ACLC2S28, aclc) < 0)
2906                                        goto err;
2907                        }
2908                        if ((state->demod_mode == STV090x_SINGLE) && (modcod > STV090x_8PSK_910)) {
2909                                if (modcod <= STV090x_16APSK_910) {
2910                                        if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2911                                                goto err;
2912                                        if (STV090x_WRITE_DEMOD(state, ACLC2S216A, aclc) < 0)
2913                                                goto err;
2914                                } else {
2915                                        if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2916                                                goto err;
2917                                        if (STV090x_WRITE_DEMOD(state, ACLC2S232A, aclc) < 0)
2918                                                goto err;
2919                                }
2920                        }
2921                } else {
2922                        /*Carrier loop setting for short frame*/
2923                        aclc = stv090x_optimize_carloop_short(state);
2924                        if (state->modulation == STV090x_QPSK) {
2925                                if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, aclc) < 0)
2926                                        goto err;
2927                        } else if (state->modulation == STV090x_8PSK) {
2928                                if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2929                                        goto err;
2930                                if (STV090x_WRITE_DEMOD(state, ACLC2S28, aclc) < 0)
2931                                        goto err;
2932                        } else if (state->modulation == STV090x_16APSK) {
2933                                if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2934                                        goto err;
2935                                if (STV090x_WRITE_DEMOD(state, ACLC2S216A, aclc) < 0)
2936                                        goto err;
2937                        } else if (state->modulation == STV090x_32APSK)  {
2938                                if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2939                                        goto err;
2940                                if (STV090x_WRITE_DEMOD(state, ACLC2S232A, aclc) < 0)
2941                                        goto err;
2942                        }
2943                }
2944
2945                STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x67); /* PER */
2946                break;
2947
2948        case STV090x_ERROR:
2949        default:
2950                reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2951                STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
2952                STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
2953                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2954                        goto err;
2955                break;
2956        }
2957
2958        f_1 = STV090x_READ_DEMOD(state, CFR2);
2959        f_0 = STV090x_READ_DEMOD(state, CFR1);
2960        reg = STV090x_READ_DEMOD(state, TMGOBS);
2961
2962        if (state->algo == STV090x_BLIND_SEARCH) {
2963                STV090x_WRITE_DEMOD(state, SFRSTEP, 0x00);
2964                reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2965                STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0x00);
2966                STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00);
2967                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2968                        goto err;
2969                if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0)
2970                        goto err;
2971
2972                if (stv090x_set_srate(state, srate) < 0)
2973                        goto err;
2974                blind_tune = 1;
2975
2976                if (stv090x_dvbs_track_crl(state) < 0)
2977                        goto err;
2978        }
2979
2980        if (state->internal->dev_ver >= 0x20) {
2981                if ((state->search_mode == STV090x_SEARCH_DVBS1)        ||
2982                    (state->search_mode == STV090x_SEARCH_DSS)          ||
2983                    (state->search_mode == STV090x_SEARCH_AUTO)) {
2984
2985                        if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x0a) < 0)
2986                                goto err;
2987                        if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x00) < 0)
2988                                goto err;
2989                }
2990        }
2991
2992        if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
2993                goto err;
2994
2995        /* AUTO tracking MODE */
2996        if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x80) < 0)
2997                goto err;
2998        /* AUTO tracking MODE */
2999        if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x80) < 0)
3000                goto err;
3001
3002        if ((state->internal->dev_ver >= 0x20) || (blind_tune == 1) ||
3003            (state->srate < 10000000)) {
3004                /* update initial carrier freq with the found freq offset */
3005                if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
3006                        goto err;
3007                if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
3008                        goto err;
3009                state->tuner_bw = stv090x_car_width(srate, state->rolloff) + 10000000;
3010
3011                if ((state->internal->dev_ver >= 0x20) || (blind_tune == 1)) {
3012
3013                        if (state->algo != STV090x_WARM_SEARCH) {
3014
3015                                if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3016                                        goto err;
3017
3018                                if (state->config->tuner_set_bandwidth) {
3019                                        if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
3020                                                goto err_gateoff;
3021                                }
3022
3023                                if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3024                                        goto err;
3025
3026                        }
3027                }
3028                if ((state->algo == STV090x_BLIND_SEARCH) || (state->srate < 10000000))
3029                        msleep(50); /* blind search: wait 50ms for SR stabilization */
3030                else
3031                        msleep(5);
3032
3033                stv090x_get_lock_tmg(state);
3034
3035                if (!(stv090x_get_dmdlock(state, (state->DemodTimeout / 2)))) {
3036                        if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
3037                                goto err;
3038                        if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
3039                                goto err;
3040                        if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
3041                                goto err;
3042                        if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
3043                                goto err;
3044
3045                        i = 0;
3046
3047                        while ((!(stv090x_get_dmdlock(state, (state->DemodTimeout / 2)))) && (i <= 2)) {
3048
3049                                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
3050                                        goto err;
3051                                if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
3052                                        goto err;
3053                                if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
3054                                        goto err;
3055                                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
3056                                        goto err;
3057                                i++;
3058                        }
3059                }
3060
3061        }
3062
3063        if (state->internal->dev_ver >= 0x20) {
3064                if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
3065                        goto err;
3066        }
3067
3068        if ((state->delsys == STV090x_DVBS1) || (state->delsys == STV090x_DSS))
3069                stv090x_set_vit_thtracq(state);
3070
3071        return 0;
3072
3073err_gateoff:
3074        stv090x_i2c_gate_ctrl(state, 0);
3075err:
3076        dprintk(FE_ERROR, 1, "I/O error");
3077        return -1;
3078}
3079
3080static int stv090x_get_feclock(struct stv090x_state *state, s32 timeout)
3081{
3082        s32 timer = 0, lock = 0, stat;
3083        u32 reg;
3084
3085        while ((timer < timeout) && (!lock)) {
3086                reg = STV090x_READ_DEMOD(state, DMDSTATE);
3087                stat = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
3088
3089                switch (stat) {
3090                case 0: /* searching */
3091                case 1: /* first PLH detected */
3092                default:
3093                        lock = 0;
3094                        break;
3095
3096                case 2: /* DVB-S2 mode */
3097                        reg = STV090x_READ_DEMOD(state, PDELSTATUS1);
3098                        lock = STV090x_GETFIELD_Px(reg, PKTDELIN_LOCK_FIELD);
3099                        break;
3100
3101                case 3: /* DVB-S1/legacy mode */
3102                        reg = STV090x_READ_DEMOD(state, VSTATUSVIT);
3103                        lock = STV090x_GETFIELD_Px(reg, LOCKEDVIT_FIELD);
3104                        break;
3105                }
3106                if (!lock) {
3107                        msleep(10);
3108                        timer += 10;
3109                }
3110        }
3111        return lock;
3112}
3113
3114static int stv090x_get_lock(struct stv090x_state *state, s32 timeout_dmd, s32 timeout_fec)
3115{
3116        u32 reg;
3117        s32 timer = 0;
3118        int lock;
3119
3120        lock = stv090x_get_dmdlock(state, timeout_dmd);
3121        if (lock)
3122                lock = stv090x_get_feclock(state, timeout_fec);
3123
3124        if (lock) {
3125                lock = 0;
3126
3127                while ((timer < timeout_fec) && (!lock)) {
3128                        reg = STV090x_READ_DEMOD(state, TSSTATUS);
3129                        lock = STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD);
3130                        msleep(1);
3131                        timer++;
3132                }
3133        }
3134
3135        return lock;
3136}
3137
3138static int stv090x_set_s2rolloff(struct stv090x_state *state)
3139{
3140        u32 reg;
3141
3142        if (state->internal->dev_ver <= 0x20) {
3143                /* rolloff to auto mode if DVBS2 */
3144                reg = STV090x_READ_DEMOD(state, DEMOD);
3145                STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 0x00);
3146                if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3147                        goto err;
3148        } else {
3149                /* DVB-S2 rolloff to auto mode if DVBS2 */
3150                reg = STV090x_READ_DEMOD(state, DEMOD);
3151                STV090x_SETFIELD_Px(reg, MANUAL_S2ROLLOFF_FIELD, 0x00);
3152                if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3153                        goto err;
3154        }
3155        return 0;
3156err:
3157        dprintk(FE_ERROR, 1, "I/O error");
3158        return -1;
3159}
3160
3161
3162static enum stv090x_signal_state stv090x_algo(struct stv090x_state *state)
3163{
3164        struct dvb_frontend *fe = &state->frontend;
3165        enum stv090x_signal_state signal_state = STV090x_NOCARRIER;
3166        u32 reg;
3167        s32 agc1_power, power_iq = 0, i;
3168        int lock = 0, low_sr = 0;
3169
3170        reg = STV090x_READ_DEMOD(state, TSCFGH);
3171        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 1); /* Stop path 1 stream merger */
3172        if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3173                goto err;
3174
3175        if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5c) < 0) /* Demod stop */
3176                goto err;
3177
3178        if (state->internal->dev_ver >= 0x20) {
3179                if (state->srate > 5000000) {
3180                        if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x9e) < 0)
3181                                goto err;
3182                } else {
3183                        if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x82) < 0)
3184                                goto err;
3185                }
3186        }
3187
3188        stv090x_get_lock_tmg(state);
3189
3190        if (state->algo == STV090x_BLIND_SEARCH) {
3191                state->tuner_bw = 2 * 36000000; /* wide bw for unknown srate */
3192                if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc0) < 0) /* wider srate scan */
3193                        goto err;
3194                if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x70) < 0)
3195                        goto err;
3196                if (stv090x_set_srate(state, 1000000) < 0) /* initial srate = 1Msps */
3197                        goto err;
3198        } else {
3199                /* known srate */
3200                if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x20) < 0)
3201                        goto err;
3202                if (STV090x_WRITE_DEMOD(state, TMGCFG, 0xd2) < 0)
3203                        goto err;
3204
3205                if (state->srate < 2000000) {
3206                        /* SR < 2MSPS */
3207                        if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x63) < 0)
3208                                goto err;
3209                } else {
3210                        /* SR >= 2Msps */
3211                        if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x70) < 0)
3212                                goto err;
3213                }
3214
3215                if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
3216                        goto err;
3217
3218                if (state->internal->dev_ver >= 0x20) {
3219                        if (STV090x_WRITE_DEMOD(state, KREFTMG, 0x5a) < 0)
3220                                goto err;
3221                        if (state->algo == STV090x_COLD_SEARCH)
3222                                state->tuner_bw = (15 * (stv090x_car_width(state->srate, state->rolloff) + 10000000)) / 10;
3223                        else if (state->algo == STV090x_WARM_SEARCH)
3224                                state->tuner_bw = stv090x_car_width(state->srate, state->rolloff) + 10000000;
3225                }
3226
3227                /* if cold start or warm  (Symbolrate is known)
3228                 * use a Narrow symbol rate scan range
3229                 */
3230                if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0) /* narrow srate scan */
3231                        goto err;
3232
3233                if (stv090x_set_srate(state, state->srate) < 0)
3234                        goto err;
3235
3236                if (stv090x_set_max_srate(state, state->internal->mclk,
3237                                          state->srate) < 0)
3238                        goto err;
3239                if (stv090x_set_min_srate(state, state->internal->mclk,
3240                                          state->srate) < 0)
3241                        goto err;
3242
3243                if (state->srate >= 10000000)
3244                        low_sr = 0;
3245                else
3246                        low_sr = 1;
3247        }
3248
3249        /* Setup tuner */
3250        if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3251                goto err;
3252
3253        if (state->config->tuner_set_bbgain) {
3254                reg = state->config->tuner_bbgain;
3255                if (reg == 0)
3256                        reg = 10; /* default: 10dB */
3257                if (state->config->tuner_set_bbgain(fe, reg) < 0)
3258                        goto err_gateoff;
3259        }
3260
3261        if (state->config->tuner_set_frequency) {
3262                if (state->config->tuner_set_frequency(fe, state->frequency) < 0)
3263                        goto err_gateoff;
3264        }
3265
3266        if (state->config->tuner_set_bandwidth) {
3267                if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
3268                        goto err_gateoff;
3269        }
3270
3271        if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3272                goto err;
3273
3274        msleep(50);
3275
3276        if (state->config->tuner_get_status) {
3277                if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3278                        goto err;
3279                if (state->config->tuner_get_status(fe, &reg) < 0)
3280                        goto err_gateoff;
3281                if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3282                        goto err;
3283
3284                if (reg)
3285                        dprintk(FE_DEBUG, 1, "Tuner phase locked");
3286                else {
3287                        dprintk(FE_DEBUG, 1, "Tuner unlocked");
3288                        return STV090x_NOCARRIER;
3289                }
3290        }
3291
3292        msleep(10);
3293        agc1_power = MAKEWORD16(STV090x_READ_DEMOD(state, AGCIQIN1),
3294                                STV090x_READ_DEMOD(state, AGCIQIN0));
3295
3296        if (agc1_power == 0) {
3297                /* If AGC1 integrator value is 0
3298                 * then read POWERI, POWERQ
3299                 */
3300                for (i = 0; i < 5; i++) {
3301                        power_iq += (STV090x_READ_DEMOD(state, POWERI) +
3302                                     STV090x_READ_DEMOD(state, POWERQ)) >> 1;
3303                }
3304                power_iq /= 5;
3305        }
3306
3307        if ((agc1_power == 0) && (power_iq < STV090x_IQPOWER_THRESHOLD)) {
3308                dprintk(FE_ERROR, 1, "No Signal: POWER_IQ=0x%02x", power_iq);
3309                lock = 0;
3310                signal_state = STV090x_NOAGC1;
3311        } else {
3312                reg = STV090x_READ_DEMOD(state, DEMOD);
3313                STV090x_SETFIELD_Px(reg, SPECINV_CONTROL_FIELD, state->inversion);
3314
3315                if (state->internal->dev_ver <= 0x20) {
3316                        /* rolloff to auto mode if DVBS2 */
3317                        STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 1);
3318                } else {
3319                        /* DVB-S2 rolloff to auto mode if DVBS2 */
3320                        STV090x_SETFIELD_Px(reg, MANUAL_S2ROLLOFF_FIELD, 1);
3321                }
3322                if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3323                        goto err;
3324
3325                if (stv090x_delivery_search(state) < 0)
3326                        goto err;
3327
3328                if (state->algo != STV090x_BLIND_SEARCH) {
3329                        if (stv090x_start_search(state) < 0)
3330                                goto err;
3331                }
3332        }
3333
3334        if (signal_state == STV090x_NOAGC1)
3335                return signal_state;
3336
3337        if (state->algo == STV090x_BLIND_SEARCH)
3338                lock = stv090x_blind_search(state);
3339
3340        else if (state->algo == STV090x_COLD_SEARCH)
3341                lock = stv090x_get_coldlock(state, state->DemodTimeout);
3342
3343        else if (state->algo == STV090x_WARM_SEARCH)
3344                lock = stv090x_get_dmdlock(state, state->DemodTimeout);
3345
3346        if ((!lock) && (state->algo == STV090x_COLD_SEARCH)) {
3347                if (!low_sr) {
3348                        if (stv090x_chk_tmg(state))
3349                                lock = stv090x_sw_algo(state);
3350                }
3351        }
3352
3353        if (lock)
3354                signal_state = stv090x_get_sig_params(state);
3355
3356        if ((lock) && (signal_state == STV090x_RANGEOK)) { /* signal within Range */
3357                stv090x_optimize_track(state);
3358
3359                if (state->internal->dev_ver >= 0x20) {
3360                        /* >= Cut 2.0 :release TS reset after
3361                         * demod lock and optimized Tracking
3362                         */
3363                        reg = STV090x_READ_DEMOD(state, TSCFGH);
3364                        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
3365                        if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3366                                goto err;
3367
3368                        msleep(3);
3369
3370                        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 1); /* merger reset */
3371                        if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3372                                goto err;
3373
3374                        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
3375                        if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3376                                goto err;
3377                }
3378
3379                lock = stv090x_get_lock(state, state->FecTimeout,
3380                                state->FecTimeout);
3381                if (lock) {
3382                        if (state->delsys == STV090x_DVBS2) {
3383                                stv090x_set_s2rolloff(state);
3384
3385                                reg = STV090x_READ_DEMOD(state, PDELCTRL2);
3386                                STV090x_SETFIELD_Px(reg, RESET_UPKO_COUNT, 1);
3387                                if (STV090x_WRITE_DEMOD(state, PDELCTRL2, reg) < 0)
3388                                        goto err;
3389                                /* Reset DVBS2 packet delinator error counter */
3390                                reg = STV090x_READ_DEMOD(state, PDELCTRL2);
3391                                STV090x_SETFIELD_Px(reg, RESET_UPKO_COUNT, 0);
3392                                if (STV090x_WRITE_DEMOD(state, PDELCTRL2, reg) < 0)
3393                                        goto err;
3394
3395                                if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x67) < 0) /* PER */
3396                                        goto err;
3397                        } else {
3398                                if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x75) < 0)
3399                                        goto err;
3400                        }
3401                        /* Reset the Total packet counter */
3402                        if (STV090x_WRITE_DEMOD(state, FBERCPT4, 0x00) < 0)
3403                                goto err;
3404                        /* Reset the packet Error counter2 */
3405                        if (STV090x_WRITE_DEMOD(state, ERRCTRL2, 0xc1) < 0)
3406                                goto err;
3407                } else {
3408                        signal_state = STV090x_NODATA;
3409                        stv090x_chk_signal(state);
3410                }
3411        }
3412        return signal_state;
3413
3414err_gateoff:
3415        stv090x_i2c_gate_ctrl(state, 0);
3416err:
3417        dprintk(FE_ERROR, 1, "I/O error");
3418        return -1;
3419}
3420
3421static int stv090x_set_pls(struct stv090x_state *state, u32 pls_code)
3422{
3423        dprintk(FE_DEBUG, 1, "Set Gold PLS code %d", pls_code);
3424        if (STV090x_WRITE_DEMOD(state, PLROOT0, pls_code & 0xff) < 0)
3425                goto err;
3426        if (STV090x_WRITE_DEMOD(state, PLROOT1, (pls_code >> 8) & 0xff) < 0)
3427                goto err;
3428        if (STV090x_WRITE_DEMOD(state, PLROOT2, 0x04 | (pls_code >> 16)) < 0)
3429                goto err;
3430        return 0;
3431err:
3432        dprintk(FE_ERROR, 1, "I/O error");
3433        return -1;
3434}
3435
3436static int stv090x_set_mis(struct stv090x_state *state, int mis)
3437{
3438        u32 reg;
3439
3440        if (mis < 0 || mis > 255) {
3441                dprintk(FE_DEBUG, 1, "Disable MIS filtering");
3442                reg = STV090x_READ_DEMOD(state, PDELCTRL1);
3443                STV090x_SETFIELD_Px(reg, FILTER_EN_FIELD, 0x00);
3444                if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
3445                        goto err;
3446        } else {
3447                dprintk(FE_DEBUG, 1, "Enable MIS filtering - %d", mis);
3448                reg = STV090x_READ_DEMOD(state, PDELCTRL1);
3449                STV090x_SETFIELD_Px(reg, FILTER_EN_FIELD, 0x01);
3450                if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
3451                        goto err;
3452                if (STV090x_WRITE_DEMOD(state, ISIENTRY, mis) < 0)
3453                        goto err;
3454                if (STV090x_WRITE_DEMOD(state, ISIBITENA, 0xff) < 0)
3455                        goto err;
3456        }
3457        return 0;
3458err:
3459        dprintk(FE_ERROR, 1, "I/O error");
3460        return -1;
3461}
3462
3463static enum dvbfe_search stv090x_search(struct dvb_frontend *fe)
3464{
3465        struct stv090x_state *state = fe->demodulator_priv;
3466        struct dtv_frontend_properties *props = &fe->dtv_property_cache;
3467
3468        if (props->frequency == 0)
3469                return DVBFE_ALGO_SEARCH_INVALID;
3470
3471        switch (props->delivery_system) {
3472        case SYS_DSS:
3473                state->delsys = STV090x_DSS;
3474                break;
3475        case SYS_DVBS:
3476                state->delsys = STV090x_DVBS1;
3477                break;
3478        case SYS_DVBS2:
3479                state->delsys = STV090x_DVBS2;
3480                break;
3481        default:
3482                return DVBFE_ALGO_SEARCH_INVALID;
3483        }
3484
3485        state->frequency = props->frequency;
3486        state->srate = props->symbol_rate;
3487        state->search_mode = STV090x_SEARCH_AUTO;
3488        state->algo = STV090x_COLD_SEARCH;
3489        state->fec = STV090x_PRERR;
3490        if (state->srate > 10000000) {
3491                dprintk(FE_DEBUG, 1, "Search range: 10 MHz");
3492                state->search_range = 10000000;
3493        } else {
3494                dprintk(FE_DEBUG, 1, "Search range: 5 MHz");
3495                state->search_range = 5000000;
3496        }
3497
3498        stv090x_set_pls(state, props->scrambling_sequence_index);
3499        stv090x_set_mis(state, props->stream_id);
3500
3501        if (stv090x_algo(state) == STV090x_RANGEOK) {
3502                dprintk(FE_DEBUG, 1, "Search success!");
3503                return DVBFE_ALGO_SEARCH_SUCCESS;
3504        } else {
3505                dprintk(FE_DEBUG, 1, "Search failed!");
3506                return DVBFE_ALGO_SEARCH_FAILED;
3507        }
3508
3509        return DVBFE_ALGO_SEARCH_ERROR;
3510}
3511
3512static int stv090x_read_status(struct dvb_frontend *fe, enum fe_status *status)
3513{
3514        struct stv090x_state *state = fe->demodulator_priv;
3515        u32 reg, dstatus;
3516        u8 search_state;
3517
3518        *status = 0;
3519
3520        dstatus = STV090x_READ_DEMOD(state, DSTATUS);
3521        if (STV090x_GETFIELD_Px(dstatus, CAR_LOCK_FIELD))
3522                *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER;
3523
3524        reg = STV090x_READ_DEMOD(state, DMDSTATE);
3525        search_state = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
3526
3527        switch (search_state) {
3528        case 0: /* searching */
3529        case 1: /* first PLH detected */
3530        default:
3531                dprintk(FE_DEBUG, 1, "Status: Unlocked (Searching ..)");
3532                break;
3533
3534        case 2: /* DVB-S2 mode */
3535                dprintk(FE_DEBUG, 1, "Delivery system: DVB-S2");
3536                if (STV090x_GETFIELD_Px(dstatus, LOCK_DEFINITIF_FIELD)) {
3537                        reg = STV090x_READ_DEMOD(state, PDELSTATUS1);
3538                        if (STV090x_GETFIELD_Px(reg, PKTDELIN_LOCK_FIELD)) {
3539                                *status |= FE_HAS_VITERBI;
3540                                reg = STV090x_READ_DEMOD(state, TSSTATUS);
3541                                if (STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD))
3542                                        *status |= FE_HAS_SYNC | FE_HAS_LOCK;
3543                        }
3544                }
3545                break;
3546
3547        case 3: /* DVB-S1/legacy mode */
3548                dprintk(FE_DEBUG, 1, "Delivery system: DVB-S");
3549                if (STV090x_GETFIELD_Px(dstatus, LOCK_DEFINITIF_FIELD)) {
3550                        reg = STV090x_READ_DEMOD(state, VSTATUSVIT);
3551                        if (STV090x_GETFIELD_Px(reg, LOCKEDVIT_FIELD)) {
3552                                *status |= FE_HAS_VITERBI;
3553                                reg = STV090x_READ_DEMOD(state, TSSTATUS);
3554                                if (STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD))
3555                                        *status |= FE_HAS_SYNC | FE_HAS_LOCK;
3556                        }
3557                }
3558                break;
3559        }
3560
3561        return 0;
3562}
3563
3564static int stv090x_read_per(struct dvb_frontend *fe, u32 *per)
3565{
3566        struct stv090x_state *state = fe->demodulator_priv;
3567
3568        s32 count_4, count_3, count_2, count_1, count_0, count;
3569        u32 reg, h, m, l;
3570        enum fe_status status;
3571
3572        stv090x_read_status(fe, &status);
3573        if (!(status & FE_HAS_LOCK)) {
3574                *per = 1 << 23; /* Max PER */
3575        } else {
3576                /* Counter 2 */
3577                reg = STV090x_READ_DEMOD(state, ERRCNT22);
3578                h = STV090x_GETFIELD_Px(reg, ERR_CNT2_FIELD);
3579
3580                reg = STV090x_READ_DEMOD(state, ERRCNT21);
3581                m = STV090x_GETFIELD_Px(reg, ERR_CNT21_FIELD);
3582
3583                reg = STV090x_READ_DEMOD(state, ERRCNT20);
3584                l = STV090x_GETFIELD_Px(reg, ERR_CNT20_FIELD);
3585
3586                *per = ((h << 16) | (m << 8) | l);
3587
3588                count_4 = STV090x_READ_DEMOD(state, FBERCPT4);
3589                count_3 = STV090x_READ_DEMOD(state, FBERCPT3);
3590                count_2 = STV090x_READ_DEMOD(state, FBERCPT2);
3591                count_1 = STV090x_READ_DEMOD(state, FBERCPT1);
3592                count_0 = STV090x_READ_DEMOD(state, FBERCPT0);
3593
3594                if ((!count_4) && (!count_3)) {
3595                        count  = (count_2 & 0xff) << 16;
3596                        count |= (count_1 & 0xff) <<  8;
3597                        count |=  count_0 & 0xff;
3598                } else {
3599                        count = 1 << 24;
3600                }
3601                if (count == 0)
3602                        *per = 1;
3603        }
3604        if (STV090x_WRITE_DEMOD(state, FBERCPT4, 0) < 0)
3605                goto err;
3606        if (STV090x_WRITE_DEMOD(state, ERRCTRL2, 0xc1) < 0)
3607                goto err;
3608
3609        return 0;
3610err:
3611        dprintk(FE_ERROR, 1, "I/O error");
3612        return -1;
3613}
3614
3615static int stv090x_table_lookup(const struct stv090x_tab *tab, int max, int val)
3616{
3617        int res = 0;
3618        int min = 0, med;
3619
3620        if ((val >= tab[min].read && val < tab[max].read) ||
3621            (val >= tab[max].read && val < tab[min].read)) {
3622                while ((max - min) > 1) {
3623                        med = (max + min) / 2;
3624                        if ((val >= tab[min].read && val < tab[med].read) ||
3625                            (val >= tab[med].read && val < tab[min].read))
3626                                max = med;
3627                        else
3628                                min = med;
3629                }
3630                res = ((val - tab[min].read) *
3631                       (tab[max].real - tab[min].real) /
3632                       (tab[max].read - tab[min].read)) +
3633                        tab[min].real;
3634        } else {
3635                if (tab[min].read < tab[max].read) {
3636                        if (val < tab[min].read)
3637                                res = tab[min].real;
3638                        else if (val >= tab[max].read)
3639                                res = tab[max].real;
3640                } else {
3641                        if (val >= tab[min].read)
3642                                res = tab[min].real;
3643                        else if (val < tab[max].read)
3644                                res = tab[max].real;
3645                }
3646        }
3647
3648        return res;
3649}
3650
3651static int stv090x_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
3652{
3653        struct stv090x_state *state = fe->demodulator_priv;
3654        u32 reg;
3655        s32 agc_0, agc_1, agc;
3656        s32 str;
3657
3658        reg = STV090x_READ_DEMOD(state, AGCIQIN1);
3659        agc_1 = STV090x_GETFIELD_Px(reg, AGCIQ_VALUE_FIELD);
3660        reg = STV090x_READ_DEMOD(state, AGCIQIN0);
3661        agc_0 = STV090x_GETFIELD_Px(reg, AGCIQ_VALUE_FIELD);
3662        agc = MAKEWORD16(agc_1, agc_0);
3663
3664        str = stv090x_table_lookup(stv090x_rf_tab,
3665                ARRAY_SIZE(stv090x_rf_tab) - 1, agc);
3666        if (agc > stv090x_rf_tab[0].read)
3667                str = 0;
3668        else if (agc < stv090x_rf_tab[ARRAY_SIZE(stv090x_rf_tab) - 1].read)
3669                str = -100;
3670        *strength = (str + 100) * 0xFFFF / 100;
3671
3672        return 0;
3673}
3674
3675static int stv090x_read_cnr(struct dvb_frontend *fe, u16 *cnr)
3676{
3677        struct stv090x_state *state = fe->demodulator_priv;
3678        u32 reg_0, reg_1, reg, i;
3679        s32 val_0, val_1, val = 0;
3680        u8 lock_f;
3681        s32 div;
3682        u32 last;
3683
3684        switch (state->delsys) {
3685        case STV090x_DVBS2:
3686                reg = STV090x_READ_DEMOD(state, DSTATUS);
3687                lock_f = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
3688                if (lock_f) {
3689                        msleep(5);
3690                        for (i = 0; i < 16; i++) {
3691                                reg_1 = STV090x_READ_DEMOD(state, NNOSPLHT1);
3692                                val_1 = STV090x_GETFIELD_Px(reg_1, NOSPLHT_NORMED_FIELD);
3693                                reg_0 = STV090x_READ_DEMOD(state, NNOSPLHT0);
3694                                val_0 = STV090x_GETFIELD_Px(reg_0, NOSPLHT_NORMED_FIELD);
3695                                val  += MAKEWORD16(val_1, val_0);
3696                                msleep(1);
3697                        }
3698                        val /= 16;
3699                        last = ARRAY_SIZE(stv090x_s2cn_tab) - 1;
3700                        div = stv090x_s2cn_tab[last].real -
3701                              stv090x_s2cn_tab[3].real;
3702                        val = stv090x_table_lookup(stv090x_s2cn_tab, last, val);
3703                        if (val < 0)
3704                                val = 0;
3705                        *cnr = val * 0xFFFF / div;
3706                }
3707                break;
3708
3709        case STV090x_DVBS1:
3710        case STV090x_DSS:
3711                reg = STV090x_READ_DEMOD(state, DSTATUS);
3712                lock_f = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
3713                if (lock_f) {
3714                        msleep(5);
3715                        for (i = 0; i < 16; i++) {
3716                                reg_1 = STV090x_READ_DEMOD(state, NOSDATAT1);
3717                                val_1 = STV090x_GETFIELD_Px(reg_1, NOSDATAT_UNNORMED_FIELD);
3718                                reg_0 = STV090x_READ_DEMOD(state, NOSDATAT0);
3719                                val_0 = STV090x_GETFIELD_Px(reg_0, NOSDATAT_UNNORMED_FIELD);
3720                                val  += MAKEWORD16(val_1, val_0);
3721                                msleep(1);
3722                        }
3723                        val /= 16;
3724                        last = ARRAY_SIZE(stv090x_s1cn_tab) - 1;
3725                        div = stv090x_s1cn_tab[last].real -
3726                              stv090x_s1cn_tab[0].real;
3727                        val = stv090x_table_lookup(stv090x_s1cn_tab, last, val);
3728                        *cnr = val * 0xFFFF / div;
3729                }
3730                break;
3731        default:
3732                break;
3733        }
3734
3735        return 0;
3736}
3737
3738static int stv090x_set_tone(struct dvb_frontend *fe, enum fe_sec_tone_mode tone)
3739{
3740        struct stv090x_state *state = fe->demodulator_priv;
3741        u32 reg;
3742
3743        reg = STV090x_READ_DEMOD(state, DISTXCTL);
3744        switch (tone) {
3745        case SEC_TONE_ON:
3746                STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, 0);
3747                STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3748                if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3749                        goto err;
3750                STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3751                if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3752                        goto err;
3753                break;
3754
3755        case SEC_TONE_OFF:
3756                STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, 0);
3757                STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3758                if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3759                        goto err;
3760                break;
3761        default:
3762                return -EINVAL;
3763        }
3764
3765        return 0;
3766err:
3767        dprintk(FE_ERROR, 1, "I/O error");
3768        return -1;
3769}
3770
3771
3772static enum dvbfe_algo stv090x_frontend_algo(struct dvb_frontend *fe)
3773{
3774        return DVBFE_ALGO_CUSTOM;
3775}
3776
3777static int stv090x_send_diseqc_msg(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd)
3778{
3779        struct stv090x_state *state = fe->demodulator_priv;
3780        u32 reg, idle = 0, fifo_full = 1;
3781        int i;
3782
3783        reg = STV090x_READ_DEMOD(state, DISTXCTL);
3784
3785        STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD,
3786                (state->config->diseqc_envelope_mode) ? 4 : 2);
3787        STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3788        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3789                goto err;
3790        STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3791        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3792                goto err;
3793
3794        STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 1);
3795        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3796                goto err;
3797
3798        for (i = 0; i < cmd->msg_len; i++) {
3799
3800                while (fifo_full) {
3801                        reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3802                        fifo_full = STV090x_GETFIELD_Px(reg, FIFO_FULL_FIELD);
3803                }
3804
3805                if (STV090x_WRITE_DEMOD(state, DISTXDATA, cmd->msg[i]) < 0)
3806                        goto err;
3807        }
3808        reg = STV090x_READ_DEMOD(state, DISTXCTL);
3809        STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 0);
3810        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3811                goto err;
3812
3813        i = 0;
3814
3815        while ((!idle) && (i < 10)) {
3816                reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3817                idle = STV090x_GETFIELD_Px(reg, TX_IDLE_FIELD);
3818                msleep(10);
3819                i++;
3820        }
3821
3822        return 0;
3823err:
3824        dprintk(FE_ERROR, 1, "I/O error");
3825        return -1;
3826}
3827
3828static int stv090x_send_diseqc_burst(struct dvb_frontend *fe,
3829                                     enum fe_sec_mini_cmd burst)
3830{
3831        struct stv090x_state *state = fe->demodulator_priv;
3832        u32 reg, idle = 0, fifo_full = 1;
3833        u8 mode, value;
3834        int i;
3835
3836        reg = STV090x_READ_DEMOD(state, DISTXCTL);
3837
3838        if (burst == SEC_MINI_A) {
3839                mode = (state->config->diseqc_envelope_mode) ? 5 : 3;
3840                value = 0x00;
3841        } else {
3842                mode = (state->config->diseqc_envelope_mode) ? 4 : 2;
3843                value = 0xFF;
3844        }
3845
3846        STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, mode);
3847        STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3848        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3849                goto err;
3850        STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3851        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3852                goto err;
3853
3854        STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 1);
3855        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3856                goto err;
3857
3858        while (fifo_full) {
3859                reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3860                fifo_full = STV090x_GETFIELD_Px(reg, FIFO_FULL_FIELD);
3861        }
3862
3863        if (STV090x_WRITE_DEMOD(state, DISTXDATA, value) < 0)
3864                goto err;
3865
3866        reg = STV090x_READ_DEMOD(state, DISTXCTL);
3867        STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 0);
3868        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3869                goto err;
3870
3871        i = 0;
3872
3873        while ((!idle) && (i < 10)) {
3874                reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3875                idle = STV090x_GETFIELD_Px(reg, TX_IDLE_FIELD);
3876                msleep(10);
3877                i++;
3878        }
3879
3880        return 0;
3881err:
3882        dprintk(FE_ERROR, 1, "I/O error");
3883        return -1;
3884}
3885
3886static int stv090x_recv_slave_reply(struct dvb_frontend *fe, struct dvb_diseqc_slave_reply *reply)
3887{
3888        struct stv090x_state *state = fe->demodulator_priv;
3889        u32 reg = 0, i = 0, rx_end = 0;
3890
3891        while ((rx_end != 1) && (i < 10)) {
3892                msleep(10);
3893                i++;
3894                reg = STV090x_READ_DEMOD(state, DISRX_ST0);
3895                rx_end = STV090x_GETFIELD_Px(reg, RX_END_FIELD);
3896        }
3897
3898        if (rx_end) {
3899                reply->msg_len = STV090x_GETFIELD_Px(reg, FIFO_BYTENBR_FIELD);
3900                for (i = 0; i < reply->msg_len; i++)
3901                        reply->msg[i] = STV090x_READ_DEMOD(state, DISRXDATA);
3902        }
3903
3904        return 0;
3905}
3906
3907static int stv090x_sleep(struct dvb_frontend *fe)
3908{
3909        struct stv090x_state *state = fe->demodulator_priv;
3910        u32 reg;
3911        u8 full_standby = 0;
3912
3913        if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3914                goto err;
3915
3916        if (state->config->tuner_sleep) {
3917                if (state->config->tuner_sleep(fe) < 0)
3918                        goto err_gateoff;
3919        }
3920
3921        if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3922                goto err;
3923
3924        dprintk(FE_DEBUG, 1, "Set %s(%d) to sleep",
3925                state->device == STV0900 ? "STV0900" : "STV0903",
3926                state->demod);
3927
3928        mutex_lock(&state->internal->demod_lock);
3929
3930        switch (state->demod) {
3931        case STV090x_DEMODULATOR_0:
3932                /* power off ADC 1 */
3933                reg = stv090x_read_reg(state, STV090x_TSTTNR1);
3934                STV090x_SETFIELD(reg, ADC1_PON_FIELD, 0);
3935                if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
3936                        goto err_unlock;
3937                /* power off DiSEqC 1 */
3938                reg = stv090x_read_reg(state, STV090x_TSTTNR2);
3939                STV090x_SETFIELD(reg, DISEQC1_PON_FIELD, 0);
3940                if (stv090x_write_reg(state, STV090x_TSTTNR2, reg) < 0)
3941                        goto err_unlock;
3942
3943                /* check whether path 2 is already sleeping, that is when
3944                   ADC2 is off */
3945                reg = stv090x_read_reg(state, STV090x_TSTTNR3);
3946                if (STV090x_GETFIELD(reg, ADC2_PON_FIELD) == 0)
3947                        full_standby = 1;
3948
3949                /* stop clocks */
3950                reg = stv090x_read_reg(state, STV090x_STOPCLK1);
3951                /* packet delineator 1 clock */
3952                STV090x_SETFIELD(reg, STOP_CLKPKDT1_FIELD, 1);
3953                /* ADC 1 clock */
3954                STV090x_SETFIELD(reg, STOP_CLKADCI1_FIELD, 1);
3955                /* FEC clock is shared between the two paths, only stop it
3956                   when full standby is possible */
3957                if (full_standby)
3958                        STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 1);
3959                if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
3960                        goto err_unlock;
3961                reg = stv090x_read_reg(state, STV090x_STOPCLK2);
3962                /* sampling 1 clock */
3963                STV090x_SETFIELD(reg, STOP_CLKSAMP1_FIELD, 1);
3964                /* viterbi 1 clock */
3965                STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, 1);
3966                /* TS clock is shared between the two paths, only stop it
3967                   when full standby is possible */
3968                if (full_standby)
3969                        STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 1);
3970                if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
3971                        goto err_unlock;
3972                break;
3973
3974        case STV090x_DEMODULATOR_1:
3975                /* power off ADC 2 */
3976                reg = stv090x_read_reg(state, STV090x_TSTTNR3);
3977                STV090x_SETFIELD(reg, ADC2_PON_FIELD, 0);
3978                if (stv090x_write_reg(state, STV090x_TSTTNR3, reg) < 0)
3979                        goto err_unlock;
3980                /* power off DiSEqC 2 */
3981                reg = stv090x_read_reg(state, STV090x_TSTTNR4);
3982                STV090x_SETFIELD(reg, DISEQC2_PON_FIELD, 0);
3983                if (stv090x_write_reg(state, STV090x_TSTTNR4, reg) < 0)
3984                        goto err_unlock;
3985
3986                /* check whether path 1 is already sleeping, that is when
3987                   ADC1 is off */
3988                reg = stv090x_read_reg(state, STV090x_TSTTNR1);
3989                if (STV090x_GETFIELD(reg, ADC1_PON_FIELD) == 0)
3990                        full_standby = 1;
3991
3992                /* stop clocks */
3993                reg = stv090x_read_reg(state, STV090x_STOPCLK1);
3994                /* packet delineator 2 clock */
3995                STV090x_SETFIELD(reg, STOP_CLKPKDT2_FIELD, 1);
3996                /* ADC 2 clock */
3997                STV090x_SETFIELD(reg, STOP_CLKADCI2_FIELD, 1);
3998                /* FEC clock is shared between the two paths, only stop it
3999                   when full standby is possible */
4000                if (full_standby)
4001                        STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 1);
4002                if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
4003                        goto err_unlock;
4004                reg = stv090x_read_reg(state, STV090x_STOPCLK2);
4005                /* sampling 2 clock */
4006                STV090x_SETFIELD(reg, STOP_CLKSAMP2_FIELD, 1);
4007                /* viterbi 2 clock */
4008                STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, 1);
4009                /* TS clock is shared between the two paths, only stop it
4010                   when full standby is possible */
4011                if (full_standby)
4012                        STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 1);
4013                if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
4014                        goto err_unlock;
4015                break;
4016
4017        default:
4018                dprintk(FE_ERROR, 1, "Wrong demodulator!");
4019                break;
4020        }
4021
4022        if (full_standby) {
4023                /* general power off */
4024                reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4025                STV090x_SETFIELD(reg, STANDBY_FIELD, 0x01);
4026                if (stv090x_write_reg(state, STV090x_SYNTCTRL, reg) < 0)
4027                        goto err_unlock;
4028        }
4029
4030        mutex_unlock(&state->internal->demod_lock);
4031        return 0;
4032
4033err_gateoff:
4034        stv090x_i2c_gate_ctrl(state, 0);
4035        goto err;
4036err_unlock:
4037        mutex_unlock(&state->internal->demod_lock);
4038err:
4039        dprintk(FE_ERROR, 1, "I/O error");
4040        return -1;
4041}
4042
4043static int stv090x_wakeup(struct dvb_frontend *fe)
4044{
4045        struct stv090x_state *state = fe->demodulator_priv;
4046        u32 reg;
4047
4048        dprintk(FE_DEBUG, 1, "Wake %s(%d) from standby",
4049                state->device == STV0900 ? "STV0900" : "STV0903",
4050                state->demod);
4051
4052        mutex_lock(&state->internal->demod_lock);
4053
4054        /* general power on */
4055        reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4056        STV090x_SETFIELD(reg, STANDBY_FIELD, 0x00);
4057        if (stv090x_write_reg(state, STV090x_SYNTCTRL, reg) < 0)
4058                goto err;
4059
4060        switch (state->demod) {
4061        case STV090x_DEMODULATOR_0:
4062                /* power on ADC 1 */
4063                reg = stv090x_read_reg(state, STV090x_TSTTNR1);
4064                STV090x_SETFIELD(reg, ADC1_PON_FIELD, 1);
4065                if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
4066                        goto err;
4067                /* power on DiSEqC 1 */
4068                reg = stv090x_read_reg(state, STV090x_TSTTNR2);
4069                STV090x_SETFIELD(reg, DISEQC1_PON_FIELD, 1);
4070                if (stv090x_write_reg(state, STV090x_TSTTNR2, reg) < 0)
4071                        goto err;
4072
4073                /* activate clocks */
4074                reg = stv090x_read_reg(state, STV090x_STOPCLK1);
4075                /* packet delineator 1 clock */
4076                STV090x_SETFIELD(reg, STOP_CLKPKDT1_FIELD, 0);
4077                /* ADC 1 clock */
4078                STV090x_SETFIELD(reg, STOP_CLKADCI1_FIELD, 0);
4079                /* FEC clock */
4080                STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 0);
4081                if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
4082                        goto err;
4083                reg = stv090x_read_reg(state, STV090x_STOPCLK2);
4084                /* sampling 1 clock */
4085                STV090x_SETFIELD(reg, STOP_CLKSAMP1_FIELD, 0);
4086                /* viterbi 1 clock */
4087                STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, 0);
4088                /* TS clock */
4089                STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 0);
4090                if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
4091                        goto err;
4092                break;
4093
4094        case STV090x_DEMODULATOR_1:
4095                /* power on ADC 2 */
4096                reg = stv090x_read_reg(state, STV090x_TSTTNR3);
4097                STV090x_SETFIELD(reg, ADC2_PON_FIELD, 1);
4098                if (stv090x_write_reg(state, STV090x_TSTTNR3, reg) < 0)
4099                        goto err;
4100                /* power on DiSEqC 2 */
4101                reg = stv090x_read_reg(state, STV090x_TSTTNR4);
4102                STV090x_SETFIELD(reg, DISEQC2_PON_FIELD, 1);
4103                if (stv090x_write_reg(state, STV090x_TSTTNR4, reg) < 0)
4104                        goto err;
4105
4106                /* activate clocks */
4107                reg = stv090x_read_reg(state, STV090x_STOPCLK1);
4108                /* packet delineator 2 clock */
4109                STV090x_SETFIELD(reg, STOP_CLKPKDT2_FIELD, 0);
4110                /* ADC 2 clock */
4111                STV090x_SETFIELD(reg, STOP_CLKADCI2_FIELD, 0);
4112                /* FEC clock */
4113                STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 0);
4114                if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
4115                        goto err;
4116                reg = stv090x_read_reg(state, STV090x_STOPCLK2);
4117                /* sampling 2 clock */
4118                STV090x_SETFIELD(reg, STOP_CLKSAMP2_FIELD, 0);
4119                /* viterbi 2 clock */
4120                STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, 0);
4121                /* TS clock */
4122                STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 0);
4123                if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
4124                        goto err;
4125                break;
4126
4127        default:
4128                dprintk(FE_ERROR, 1, "Wrong demodulator!");
4129                break;
4130        }
4131
4132        mutex_unlock(&state->internal->demod_lock);
4133        return 0;
4134err:
4135        mutex_unlock(&state->internal->demod_lock);
4136        dprintk(FE_ERROR, 1, "I/O error");
4137        return -1;
4138}
4139
4140static void stv090x_release(struct dvb_frontend *fe)
4141{
4142        struct stv090x_state *state = fe->demodulator_priv;
4143
4144        state->internal->num_used--;
4145        if (state->internal->num_used <= 0) {
4146
4147                dprintk(FE_ERROR, 1, "Actually removing");
4148
4149                remove_dev(state->internal);
4150                kfree(state->internal);
4151        }
4152
4153        kfree(state);
4154}
4155
4156static int stv090x_ldpc_mode(struct stv090x_state *state, enum stv090x_mode ldpc_mode)
4157{
4158        u32 reg = 0;
4159
4160        reg = stv090x_read_reg(state, STV090x_GENCFG);
4161
4162        switch (ldpc_mode) {
4163        case STV090x_DUAL:
4164        default:
4165                if ((state->demod_mode != STV090x_DUAL) || (STV090x_GETFIELD(reg, DDEMOD_FIELD) != 1)) {
4166                        /* set LDPC to dual mode */
4167                        if (stv090x_write_reg(state, STV090x_GENCFG, 0x1d) < 0)
4168                                goto err;
4169
4170                        state->demod_mode = STV090x_DUAL;
4171
4172                        reg = stv090x_read_reg(state, STV090x_TSTRES0);
4173                        STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x1);
4174                        if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4175                                goto err;
4176                        STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x0);
4177                        if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4178                                goto err;
4179
4180                        if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
4181                                goto err;
4182                        if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xff) < 0)
4183                                goto err;
4184                        if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xff) < 0)
4185                                goto err;
4186                        if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xff) < 0)
4187                                goto err;
4188                        if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xff) < 0)
4189                                goto err;
4190                        if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xff) < 0)
4191                                goto err;
4192                        if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xff) < 0)
4193                                goto err;
4194
4195                        if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xcc) < 0)
4196                                goto err;
4197                        if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xcc) < 0)
4198                                goto err;
4199                        if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xcc) < 0)
4200                                goto err;
4201                        if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xcc) < 0)
4202                                goto err;
4203                        if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xcc) < 0)
4204                                goto err;
4205                        if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xcc) < 0)
4206                                goto err;
4207                        if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xcc) < 0)
4208                                goto err;
4209
4210                        if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xff) < 0)
4211                                goto err;
4212                        if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xcf) < 0)
4213                                goto err;
4214                }
4215                break;
4216
4217        case STV090x_SINGLE:
4218                if (stv090x_stop_modcod(state) < 0)
4219                        goto err;
4220                if (stv090x_activate_modcod_single(state) < 0)
4221                        goto err;
4222
4223                if (state->demod == STV090x_DEMODULATOR_1) {
4224                        if (stv090x_write_reg(state, STV090x_GENCFG, 0x06) < 0) /* path 2 */
4225                                goto err;
4226                } else {
4227                        if (stv090x_write_reg(state, STV090x_GENCFG, 0x04) < 0) /* path 1 */
4228                                goto err;
4229                }
4230
4231                reg = stv090x_read_reg(state, STV090x_TSTRES0);
4232                STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x1);
4233                if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4234                        goto err;
4235                STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x0);
4236                if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4237                        goto err;
4238
4239                reg = STV090x_READ_DEMOD(state, PDELCTRL1);
4240                STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x01);
4241                if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
4242                        goto err;
4243                STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x00);
4244                if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
4245                        goto err;
4246                break;
4247        }
4248
4249        return 0;
4250err:
4251        dprintk(FE_ERROR, 1, "I/O error");
4252        return -1;
4253}
4254
4255/* return (Hz), clk in Hz*/
4256static u32 stv090x_get_mclk(struct stv090x_state *state)
4257{
4258        const struct stv090x_config *config = state->config;
4259        u32 div, reg;
4260        u8 ratio;
4261
4262        div = stv090x_read_reg(state, STV090x_NCOARSE);
4263        reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4264        ratio = STV090x_GETFIELD(reg, SELX1RATIO_FIELD) ? 4 : 6;
4265
4266        return (div + 1) * config->xtal / ratio; /* kHz */
4267}
4268
4269static int stv090x_set_mclk(struct stv090x_state *state, u32 mclk, u32 clk)
4270{
4271        const struct stv090x_config *config = state->config;
4272        u32 reg, div, clk_sel;
4273
4274        reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4275        clk_sel = ((STV090x_GETFIELD(reg, SELX1RATIO_FIELD) == 1) ? 4 : 6);
4276
4277        div = ((clk_sel * mclk) / config->xtal) - 1;
4278
4279        reg = stv090x_read_reg(state, STV090x_NCOARSE);
4280        STV090x_SETFIELD(reg, M_DIV_FIELD, div);
4281        if (stv090x_write_reg(state, STV090x_NCOARSE, reg) < 0)
4282                goto err;
4283
4284        state->internal->mclk = stv090x_get_mclk(state);
4285
4286        /*Set the DiseqC frequency to 22KHz */
4287        div = state->internal->mclk / 704000;
4288        if (STV090x_WRITE_DEMOD(state, F22TX, div) < 0)
4289                goto err;
4290        if (STV090x_WRITE_DEMOD(state, F22RX, div) < 0)
4291                goto err;
4292
4293        return 0;
4294err:
4295        dprintk(FE_ERROR, 1, "I/O error");
4296        return -1;
4297}
4298
4299static int stv0900_set_tspath(struct stv090x_state *state)
4300{
4301        u32 reg;
4302
4303        if (state->internal->dev_ver >= 0x20) {
4304                switch (state->config->ts1_mode) {
4305                case STV090x_TSMODE_PARALLEL_PUNCTURED:
4306                case STV090x_TSMODE_DVBCI:
4307                        switch (state->config->ts2_mode) {
4308                        case STV090x_TSMODE_SERIAL_PUNCTURED:
4309                        case STV090x_TSMODE_SERIAL_CONTINUOUS:
4310                        default:
4311                                stv090x_write_reg(state, STV090x_TSGENERAL, 0x00);
4312                                break;
4313
4314                        case STV090x_TSMODE_PARALLEL_PUNCTURED:
4315                        case STV090x_TSMODE_DVBCI:
4316                                if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x06) < 0) /* Mux'd stream mode */
4317                                        goto err;
4318                                reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4319                                STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4320                                if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4321                                        goto err;
4322                                reg = stv090x_read_reg(state, STV090x_P2_TSCFGM);
4323                                STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4324                                if (stv090x_write_reg(state, STV090x_P2_TSCFGM, reg) < 0)
4325                                        goto err;
4326                                if (stv090x_write_reg(state, STV090x_P1_TSSPEED, 0x14) < 0)
4327                                        goto err;
4328                                if (stv090x_write_reg(state, STV090x_P2_TSSPEED, 0x28) < 0)
4329                                        goto err;
4330                                break;
4331                        }
4332                        break;
4333
4334                case STV090x_TSMODE_SERIAL_PUNCTURED:
4335                case STV090x_TSMODE_SERIAL_CONTINUOUS:
4336                default:
4337                        switch (state->config->ts2_mode) {
4338                        case STV090x_TSMODE_SERIAL_PUNCTURED:
4339                        case STV090x_TSMODE_SERIAL_CONTINUOUS:
4340                        default:
4341                                if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c) < 0)
4342                                        goto err;
4343                                break;
4344
4345                        case STV090x_TSMODE_PARALLEL_PUNCTURED:
4346                        case STV090x_TSMODE_DVBCI:
4347                                if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0a) < 0)
4348                                        goto err;
4349                                break;
4350                        }
4351                        break;
4352                }
4353        } else {
4354                switch (state->config->ts1_mode) {
4355                case STV090x_TSMODE_PARALLEL_PUNCTURED:
4356                case STV090x_TSMODE_DVBCI:
4357                        switch (state->config->ts2_mode) {
4358                        case STV090x_TSMODE_SERIAL_PUNCTURED:
4359                        case STV090x_TSMODE_SERIAL_CONTINUOUS:
4360                        default:
4361                                stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x10);
4362                                break;
4363
4364                        case STV090x_TSMODE_PARALLEL_PUNCTURED:
4365                        case STV090x_TSMODE_DVBCI:
4366                                stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x16);
4367                                reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4368                                STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4369                                if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4370                                        goto err;
4371                                reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4372                                STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 0);
4373                                if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4374                                        goto err;
4375                                if (stv090x_write_reg(state, STV090x_P1_TSSPEED, 0x14) < 0)
4376                                        goto err;
4377                                if (stv090x_write_reg(state, STV090x_P2_TSSPEED, 0x28) < 0)
4378                                        goto err;
4379                                break;
4380                        }
4381                        break;
4382
4383                case STV090x_TSMODE_SERIAL_PUNCTURED:
4384                case STV090x_TSMODE_SERIAL_CONTINUOUS:
4385                default:
4386                        switch (state->config->ts2_mode) {
4387                        case STV090x_TSMODE_SERIAL_PUNCTURED:
4388                        case STV090x_TSMODE_SERIAL_CONTINUOUS:
4389                        default:
4390                                stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x14);
4391                                break;
4392
4393                        case STV090x_TSMODE_PARALLEL_PUNCTURED:
4394                        case STV090x_TSMODE_DVBCI:
4395                                stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x12);
4396                                break;
4397                        }
4398                        break;
4399                }
4400        }
4401
4402        switch (state->config->ts1_mode) {
4403        case STV090x_TSMODE_PARALLEL_PUNCTURED:
4404                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4405                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4406                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4407                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4408                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4409                        goto err;
4410                break;
4411
4412        case STV090x_TSMODE_DVBCI:
4413                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4414                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4415                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4416                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4417                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4418                        goto err;
4419                break;
4420
4421        case STV090x_TSMODE_SERIAL_PUNCTURED:
4422                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4423                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4424                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4425                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4426                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4427                        goto err;
4428                break;
4429
4430        case STV090x_TSMODE_SERIAL_CONTINUOUS:
4431                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4432                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4433                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4434                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4435                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4436                        goto err;
4437                break;
4438
4439        default:
4440                break;
4441        }
4442
4443        switch (state->config->ts2_mode) {
4444        case STV090x_TSMODE_PARALLEL_PUNCTURED:
4445                reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4446                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4447                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4448                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4449                if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4450                        goto err;
4451                break;
4452
4453        case STV090x_TSMODE_DVBCI:
4454                reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4455                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4456                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4457                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4458                if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4459                        goto err;
4460                break;
4461
4462        case STV090x_TSMODE_SERIAL_PUNCTURED:
4463                reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4464                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4465                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4466                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4467                if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4468                        goto err;
4469                break;
4470
4471        case STV090x_TSMODE_SERIAL_CONTINUOUS:
4472                reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4473                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4474                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4475                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4476                if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4477                        goto err;
4478                break;
4479
4480        default:
4481                break;
4482        }
4483
4484        if (state->config->ts1_clk > 0) {
4485                u32 speed;
4486
4487                switch (state->config->ts1_mode) {
4488                case STV090x_TSMODE_PARALLEL_PUNCTURED:
4489                case STV090x_TSMODE_DVBCI:
4490                default:
4491                        speed = state->internal->mclk /
4492                                (state->config->ts1_clk / 4);
4493                        if (speed < 0x08)
4494                                speed = 0x08;
4495                        if (speed > 0xFF)
4496                                speed = 0xFF;
4497                        break;
4498                case STV090x_TSMODE_SERIAL_PUNCTURED:
4499                case STV090x_TSMODE_SERIAL_CONTINUOUS:
4500                        speed = state->internal->mclk /
4501                                (state->config->ts1_clk / 32);
4502                        if (speed < 0x20)
4503                                speed = 0x20;
4504                        if (speed > 0xFF)
4505                                speed = 0xFF;
4506                        break;
4507                }
4508                reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4509                STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4510                if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4511                        goto err;
4512                if (stv090x_write_reg(state, STV090x_P1_TSSPEED, speed) < 0)
4513                        goto err;
4514        }
4515
4516        if (state->config->ts2_clk > 0) {
4517                u32 speed;
4518
4519                switch (state->config->ts2_mode) {
4520                case STV090x_TSMODE_PARALLEL_PUNCTURED:
4521                case STV090x_TSMODE_DVBCI:
4522                default:
4523                        speed = state->internal->mclk /
4524                                (state->config->ts2_clk / 4);
4525                        if (speed < 0x08)
4526                                speed = 0x08;
4527                        if (speed > 0xFF)
4528                                speed = 0xFF;
4529                        break;
4530                case STV090x_TSMODE_SERIAL_PUNCTURED:
4531                case STV090x_TSMODE_SERIAL_CONTINUOUS:
4532                        speed = state->internal->mclk /
4533                                (state->config->ts2_clk / 32);
4534                        if (speed < 0x20)
4535                                speed = 0x20;
4536                        if (speed > 0xFF)
4537                                speed = 0xFF;
4538                        break;
4539                }
4540                reg = stv090x_read_reg(state, STV090x_P2_TSCFGM);
4541                STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4542                if (stv090x_write_reg(state, STV090x_P2_TSCFGM, reg) < 0)
4543                        goto err;
4544                if (stv090x_write_reg(state, STV090x_P2_TSSPEED, speed) < 0)
4545                        goto err;
4546        }
4547
4548        reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4549        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
4550        if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4551                goto err;
4552        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
4553        if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4554                goto err;
4555
4556        reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4557        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
4558        if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4559                goto err;
4560        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
4561        if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4562                goto err;
4563
4564        return 0;
4565err:
4566        dprintk(FE_ERROR, 1, "I/O error");
4567        return -1;
4568}
4569
4570static int stv0903_set_tspath(struct stv090x_state *state)
4571{
4572        u32 reg;
4573
4574        if (state->internal->dev_ver >= 0x20) {
4575                switch (state->config->ts1_mode) {
4576                case STV090x_TSMODE_PARALLEL_PUNCTURED:
4577                case STV090x_TSMODE_DVBCI:
4578                        stv090x_write_reg(state, STV090x_TSGENERAL, 0x00);
4579                        break;
4580
4581                case STV090x_TSMODE_SERIAL_PUNCTURED:
4582                case STV090x_TSMODE_SERIAL_CONTINUOUS:
4583                default:
4584                        stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c);
4585                        break;
4586                }
4587        } else {
4588                switch (state->config->ts1_mode) {
4589                case STV090x_TSMODE_PARALLEL_PUNCTURED:
4590                case STV090x_TSMODE_DVBCI:
4591                        stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x10);
4592                        break;
4593
4594                case STV090x_TSMODE_SERIAL_PUNCTURED:
4595                case STV090x_TSMODE_SERIAL_CONTINUOUS:
4596                default:
4597                        stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x14);
4598                        break;
4599                }
4600        }
4601
4602        switch (state->config->ts1_mode) {
4603        case STV090x_TSMODE_PARALLEL_PUNCTURED:
4604                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4605                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4606                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4607                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4608                        goto err;
4609                break;
4610
4611        case STV090x_TSMODE_DVBCI:
4612                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4613                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4614                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4615                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4616                        goto err;
4617                break;
4618
4619        case STV090x_TSMODE_SERIAL_PUNCTURED:
4620                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4621                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4622                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4623                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4624                        goto err;
4625                break;
4626
4627        case STV090x_TSMODE_SERIAL_CONTINUOUS:
4628                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4629                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4630                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4631                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4632                        goto err;
4633                break;
4634
4635        default:
4636                break;
4637        }
4638
4639        if (state->config->ts1_clk > 0) {
4640                u32 speed;
4641
4642                switch (state->config->ts1_mode) {
4643                case STV090x_TSMODE_PARALLEL_PUNCTURED:
4644                case STV090x_TSMODE_DVBCI:
4645                default:
4646                        speed = state->internal->mclk /
4647                                (state->config->ts1_clk / 4);
4648                        if (speed < 0x08)
4649                                speed = 0x08;
4650                        if (speed > 0xFF)
4651                                speed = 0xFF;
4652                        break;
4653                case STV090x_TSMODE_SERIAL_PUNCTURED:
4654                case STV090x_TSMODE_SERIAL_CONTINUOUS:
4655                        speed = state->internal->mclk /
4656                                (state->config->ts1_clk / 32);
4657                        if (speed < 0x20)
4658                                speed = 0x20;
4659                        if (speed > 0xFF)
4660                                speed = 0xFF;
4661                        break;
4662                }
4663                reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4664                STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4665                if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4666                        goto err;
4667                if (stv090x_write_reg(state, STV090x_P1_TSSPEED, speed) < 0)
4668                        goto err;
4669        }
4670
4671        reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4672        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
4673        if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4674                goto err;
4675        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
4676        if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4677                goto err;
4678
4679        return 0;
4680err:
4681        dprintk(FE_ERROR, 1, "I/O error");
4682        return -1;
4683}
4684
4685static int stv090x_init(struct dvb_frontend *fe)
4686{
4687        struct stv090x_state *state = fe->demodulator_priv;
4688        const struct stv090x_config *config = state->config;
4689        u32 reg;
4690
4691        if (state->internal->mclk == 0) {
4692                /* call tuner init to configure the tuner's clock output
4693                   divider directly before setting up the master clock of
4694                   the stv090x. */
4695                if (stv090x_i2c_gate_ctrl(state, 1) < 0)
4696                        goto err;
4697
4698                if (config->tuner_init) {
4699                        if (config->tuner_init(fe) < 0)
4700                                goto err_gateoff;
4701                }
4702
4703                if (stv090x_i2c_gate_ctrl(state, 0) < 0)
4704                        goto err;
4705
4706                stv090x_set_mclk(state, 135000000, config->xtal); /* 135 Mhz */
4707                msleep(5);
4708                if (stv090x_write_reg(state, STV090x_SYNTCTRL,
4709                                      0x20 | config->clk_mode) < 0)
4710                        goto err;
4711                stv090x_get_mclk(state);
4712        }
4713
4714        if (stv090x_wakeup(fe) < 0) {
4715                dprintk(FE_ERROR, 1, "Error waking device");
4716                goto err;
4717        }
4718
4719        if (stv090x_ldpc_mode(state, state->demod_mode) < 0)
4720                goto err;
4721
4722        reg = STV090x_READ_DEMOD(state, TNRCFG2);
4723        STV090x_SETFIELD_Px(reg, TUN_IQSWAP_FIELD, state->inversion);
4724        if (STV090x_WRITE_DEMOD(state, TNRCFG2, reg) < 0)
4725                goto err;
4726        reg = STV090x_READ_DEMOD(state, DEMOD);
4727        STV090x_SETFIELD_Px(reg, ROLLOFF_CONTROL_FIELD, state->rolloff);
4728        if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
4729                goto err;
4730
4731        if (stv090x_i2c_gate_ctrl(state, 1) < 0)
4732                goto err;
4733
4734        if (config->tuner_set_mode) {
4735                if (config->tuner_set_mode(fe, TUNER_WAKE) < 0)
4736                        goto err_gateoff;
4737        }
4738
4739        if (config->tuner_init) {
4740                if (config->tuner_init(fe) < 0)
4741                        goto err_gateoff;
4742        }
4743
4744        if (stv090x_i2c_gate_ctrl(state, 0) < 0)
4745                goto err;
4746
4747        if (state->device == STV0900) {
4748                if (stv0900_set_tspath(state) < 0)
4749                        goto err;
4750        } else {
4751                if (stv0903_set_tspath(state) < 0)
4752                        goto err;
4753        }
4754
4755        return 0;
4756
4757err_gateoff:
4758        stv090x_i2c_gate_ctrl(state, 0);
4759err:
4760        dprintk(FE_ERROR, 1, "I/O error");
4761        return -1;
4762}
4763
4764static int stv090x_setup(struct dvb_frontend *fe)
4765{
4766        struct stv090x_state *state = fe->demodulator_priv;
4767        const struct stv090x_config *config = state->config;
4768        const struct stv090x_reg *stv090x_initval = NULL;
4769        const struct stv090x_reg *stv090x_cut20_val = NULL;
4770        unsigned long t1_size = 0, t2_size = 0;
4771        u32 reg = 0;
4772
4773        int i;
4774
4775        if (state->device == STV0900) {
4776                dprintk(FE_DEBUG, 1, "Initializing STV0900");
4777                stv090x_initval = stv0900_initval;
4778                t1_size = ARRAY_SIZE(stv0900_initval);
4779                stv090x_cut20_val = stv0900_cut20_val;
4780                t2_size = ARRAY_SIZE(stv0900_cut20_val);
4781        } else if (state->device == STV0903) {
4782                dprintk(FE_DEBUG, 1, "Initializing STV0903");
4783                stv090x_initval = stv0903_initval;
4784                t1_size = ARRAY_SIZE(stv0903_initval);
4785                stv090x_cut20_val = stv0903_cut20_val;
4786                t2_size = ARRAY_SIZE(stv0903_cut20_val);
4787        }
4788
4789        /* STV090x init */
4790
4791        /* Stop Demod */
4792        if (stv090x_write_reg(state, STV090x_P1_DMDISTATE, 0x5c) < 0)
4793                goto err;
4794        if (state->device == STV0900)
4795                if (stv090x_write_reg(state, STV090x_P2_DMDISTATE, 0x5c) < 0)
4796                        goto err;
4797
4798        msleep(5);
4799
4800        /* Set No Tuner Mode */
4801        if (stv090x_write_reg(state, STV090x_P1_TNRCFG, 0x6c) < 0)
4802                goto err;
4803        if (state->device == STV0900)
4804                if (stv090x_write_reg(state, STV090x_P2_TNRCFG, 0x6c) < 0)
4805                        goto err;
4806
4807        /* I2C repeater OFF */
4808        STV090x_SETFIELD_Px(reg, ENARPT_LEVEL_FIELD, config->repeater_level);
4809        if (stv090x_write_reg(state, STV090x_P1_I2CRPT, reg) < 0)
4810                goto err;
4811        if (state->device == STV0900)
4812                if (stv090x_write_reg(state, STV090x_P2_I2CRPT, reg) < 0)
4813                        goto err;
4814
4815        if (stv090x_write_reg(state, STV090x_NCOARSE, 0x13) < 0) /* set PLL divider */
4816                goto err;
4817        msleep(5);
4818        if (stv090x_write_reg(state, STV090x_I2CCFG, 0x08) < 0) /* 1/41 oversampling */
4819                goto err;
4820        if (stv090x_write_reg(state, STV090x_SYNTCTRL, 0x20 | config->clk_mode) < 0) /* enable PLL */
4821                goto err;
4822        msleep(5);
4823
4824        /* write initval */
4825        dprintk(FE_DEBUG, 1, "Setting up initial values");
4826        for (i = 0; i < t1_size; i++) {
4827                if (stv090x_write_reg(state, stv090x_initval[i].addr, stv090x_initval[i].data) < 0)
4828                        goto err;
4829        }
4830
4831        state->internal->dev_ver = stv090x_read_reg(state, STV090x_MID);
4832        if (state->internal->dev_ver >= 0x20) {
4833                if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c) < 0)
4834                        goto err;
4835
4836                /* write cut20_val*/
4837                dprintk(FE_DEBUG, 1, "Setting up Cut 2.0 initial values");
4838                for (i = 0; i < t2_size; i++) {
4839                        if (stv090x_write_reg(state, stv090x_cut20_val[i].addr, stv090x_cut20_val[i].data) < 0)
4840                                goto err;
4841                }
4842
4843        } else if (state->internal->dev_ver < 0x20) {
4844                dprintk(FE_ERROR, 1, "ERROR: Unsupported Cut: 0x%02x!",
4845                        state->internal->dev_ver);
4846
4847                goto err;
4848        } else if (state->internal->dev_ver > 0x30) {
4849                /* we shouldn't bail out from here */
4850                dprintk(FE_ERROR, 1, "INFO: Cut: 0x%02x probably incomplete support!",
4851                        state->internal->dev_ver);
4852        }
4853
4854        /* ADC1 range */
4855        reg = stv090x_read_reg(state, STV090x_TSTTNR1);
4856        STV090x_SETFIELD(reg, ADC1_INMODE_FIELD,
4857                (config->adc1_range == STV090x_ADC_1Vpp) ? 0 : 1);
4858        if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
4859                goto err;
4860
4861        /* ADC2 range */
4862        reg = stv090x_read_reg(state, STV090x_TSTTNR3);
4863        STV090x_SETFIELD(reg, ADC2_INMODE_FIELD,
4864                (config->adc2_range == STV090x_ADC_1Vpp) ? 0 : 1);
4865        if (stv090x_write_reg(state, STV090x_TSTTNR3, reg) < 0)
4866                goto err;
4867
4868        if (stv090x_write_reg(state, STV090x_TSTRES0, 0x80) < 0)
4869                goto err;
4870        if (stv090x_write_reg(state, STV090x_TSTRES0, 0x00) < 0)
4871                goto err;
4872
4873        return 0;
4874err:
4875        dprintk(FE_ERROR, 1, "I/O error");
4876        return -1;
4877}
4878
4879static int stv090x_set_gpio(struct dvb_frontend *fe, u8 gpio, u8 dir,
4880                            u8 value, u8 xor_value)
4881{
4882        struct stv090x_state *state = fe->demodulator_priv;
4883        u8 reg = 0;
4884
4885        STV090x_SETFIELD(reg, GPIOx_OPD_FIELD, dir);
4886        STV090x_SETFIELD(reg, GPIOx_CONFIG_FIELD, value);
4887        STV090x_SETFIELD(reg, GPIOx_XOR_FIELD, xor_value);
4888
4889        return stv090x_write_reg(state, STV090x_GPIOxCFG(gpio), reg);
4890}
4891
4892static int stv090x_setup_compound(struct stv090x_state *state)
4893{
4894        struct stv090x_dev *temp_int;
4895
4896        temp_int = find_dev(state->i2c,
4897                            state->config->address);
4898
4899        if (temp_int && state->demod_mode == STV090x_DUAL) {
4900                state->internal = temp_int->internal;
4901                state->internal->num_used++;
4902                dprintk(FE_INFO, 1, "Found Internal Structure!");
4903        } else {
4904                state->internal = kmalloc(sizeof(*state->internal), GFP_KERNEL);
4905                if (!state->internal)
4906                        goto error;
4907                temp_int = append_internal(state->internal);
4908                if (!temp_int) {
4909                        kfree(state->internal);
4910                        goto error;
4911                }
4912                state->internal->num_used = 1;
4913                state->internal->mclk = 0;
4914                state->internal->dev_ver = 0;
4915                state->internal->i2c_adap = state->i2c;
4916                state->internal->i2c_addr = state->config->address;
4917                dprintk(FE_INFO, 1, "Create New Internal Structure!");
4918
4919                mutex_init(&state->internal->demod_lock);
4920                mutex_init(&state->internal->tuner_lock);
4921
4922                if (stv090x_setup(&state->frontend) < 0) {
4923                        dprintk(FE_ERROR, 1, "Error setting up device");
4924                        goto err_remove;
4925                }
4926        }
4927
4928        if (state->internal->dev_ver >= 0x30)
4929                state->frontend.ops.info.caps |= FE_CAN_MULTISTREAM;
4930
4931        /* workaround for stuck DiSEqC output */
4932        if (state->config->diseqc_envelope_mode)
4933                stv090x_send_diseqc_burst(&state->frontend, SEC_MINI_A);
4934
4935        state->config->set_gpio = stv090x_set_gpio;
4936
4937        dprintk(FE_ERROR, 1, "Probing %s demodulator(%d) Cut=0x%02x",
4938                state->device == STV0900 ? "STV0900" : "STV0903",
4939                state->config->demod,
4940                state->internal->dev_ver);
4941
4942        return 0;
4943
4944error:
4945        return -ENOMEM;
4946err_remove:
4947        remove_dev(state->internal);
4948        kfree(state->internal);
4949        return -ENODEV;
4950}
4951
4952static const struct dvb_frontend_ops stv090x_ops = {
4953        .delsys = { SYS_DVBS, SYS_DVBS2, SYS_DSS },
4954        .info = {
4955                .name                   = "STV090x Multistandard",
4956                .frequency_min_hz       =  950 * MHz,
4957                .frequency_max_hz       = 2150 * MHz,
4958                .symbol_rate_min        = 1000000,
4959                .symbol_rate_max        = 45000000,
4960                .caps                   = FE_CAN_INVERSION_AUTO |
4961                                          FE_CAN_FEC_AUTO       |
4962                                          FE_CAN_QPSK           |
4963                                          FE_CAN_2G_MODULATION
4964        },
4965
4966        .release                        = stv090x_release,
4967        .init                           = stv090x_init,
4968
4969        .sleep                          = stv090x_sleep,
4970        .get_frontend_algo              = stv090x_frontend_algo,
4971
4972        .diseqc_send_master_cmd         = stv090x_send_diseqc_msg,
4973        .diseqc_send_burst              = stv090x_send_diseqc_burst,
4974        .diseqc_recv_slave_reply        = stv090x_recv_slave_reply,
4975        .set_tone                       = stv090x_set_tone,
4976
4977        .search                         = stv090x_search,
4978        .read_status                    = stv090x_read_status,
4979        .read_ber                       = stv090x_read_per,
4980        .read_signal_strength           = stv090x_read_signal_strength,
4981        .read_snr                       = stv090x_read_cnr,
4982};
4983
4984static struct dvb_frontend *stv090x_get_dvb_frontend(struct i2c_client *client)
4985{
4986        struct stv090x_state *state = i2c_get_clientdata(client);
4987
4988        dev_dbg(&client->dev, "\n");
4989
4990        return &state->frontend;
4991}
4992
4993static int stv090x_probe(struct i2c_client *client,
4994                         const struct i2c_device_id *id)
4995{
4996        int ret = 0;
4997        struct stv090x_config *config = client->dev.platform_data;
4998
4999        struct stv090x_state *state = NULL;
5000
5001        state = kzalloc(sizeof(*state), GFP_KERNEL);
5002        if (!state) {
5003                ret = -ENOMEM;
5004                goto error;
5005        }
5006
5007        state->verbose                          = &verbose;
5008        state->config                           = config;
5009        state->i2c                              = client->adapter;
5010        state->frontend.ops                     = stv090x_ops;
5011        state->frontend.demodulator_priv        = state;
5012        state->demod                            = config->demod;
5013                                                /* Single or Dual mode */
5014        state->demod_mode                       = config->demod_mode;
5015        state->device                           = config->device;
5016                                                /* default */
5017        state->rolloff                          = STV090x_RO_35;
5018
5019        ret = stv090x_setup_compound(state);
5020        if (ret)
5021                goto error;
5022
5023        i2c_set_clientdata(client, state);
5024
5025        /* setup callbacks */
5026        config->get_dvb_frontend = stv090x_get_dvb_frontend;
5027
5028        return 0;
5029
5030error:
5031        kfree(state);
5032        return ret;
5033}
5034
5035static int stv090x_remove(struct i2c_client *client)
5036{
5037        struct stv090x_state *state = i2c_get_clientdata(client);
5038
5039        stv090x_release(&state->frontend);
5040        return 0;
5041}
5042
5043struct dvb_frontend *stv090x_attach(struct stv090x_config *config,
5044                                    struct i2c_adapter *i2c,
5045                                    enum stv090x_demodulator demod)
5046{
5047        int ret = 0;
5048        struct stv090x_state *state = NULL;
5049
5050        state = kzalloc(sizeof(*state), GFP_KERNEL);
5051        if (!state)
5052                goto error;
5053
5054        state->verbose                          = &verbose;
5055        state->config                           = config;
5056        state->i2c                              = i2c;
5057        state->frontend.ops                     = stv090x_ops;
5058        state->frontend.demodulator_priv        = state;
5059        state->demod                            = demod;
5060                                                /* Single or Dual mode */
5061        state->demod_mode                       = config->demod_mode;
5062        state->device                           = config->device;
5063                                                /* default */
5064        state->rolloff                          = STV090x_RO_35;
5065
5066        ret = stv090x_setup_compound(state);
5067        if (ret)
5068                goto error;
5069
5070        return &state->frontend;
5071
5072error:
5073        kfree(state);
5074        return NULL;
5075}
5076EXPORT_SYMBOL(stv090x_attach);
5077
5078static const struct i2c_device_id stv090x_id_table[] = {
5079        {"stv090x", 0},
5080        {}
5081};
5082MODULE_DEVICE_TABLE(i2c, stv090x_id_table);
5083
5084static struct i2c_driver stv090x_driver = {
5085        .driver = {
5086                .name   = "stv090x",
5087                .suppress_bind_attrs = true,
5088        },
5089        .probe          = stv090x_probe,
5090        .remove         = stv090x_remove,
5091        .id_table       = stv090x_id_table,
5092};
5093
5094module_i2c_driver(stv090x_driver);
5095
5096MODULE_PARM_DESC(verbose, "Set Verbosity level");
5097MODULE_AUTHOR("Manu Abraham");
5098MODULE_DESCRIPTION("STV090x Multi-Std Broadcast frontend");
5099MODULE_LICENSE("GPL");
5100