linux/drivers/media/dvb-frontends/stv090x.c
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   1/*
   2        STV0900/0903 Multistandard Broadcast Frontend driver
   3        Copyright (C) Manu Abraham <abraham.manu@gmail.com>
   4
   5        Copyright (C) ST Microelectronics
   6
   7        This program is free software; you can redistribute it and/or modify
   8        it under the terms of the GNU General Public License as published by
   9        the Free Software Foundation; either version 2 of the License, or
  10        (at your option) any later version.
  11
  12        This program is distributed in the hope that it will be useful,
  13        but WITHOUT ANY WARRANTY; without even the implied warranty of
  14        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15        GNU General Public License for more details.
  16
  17        You should have received a copy of the GNU General Public License
  18        along with this program; if not, write to the Free Software
  19        Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20*/
  21
  22#include <linux/init.h>
  23#include <linux/kernel.h>
  24#include <linux/module.h>
  25#include <linux/string.h>
  26#include <linux/slab.h>
  27#include <linux/mutex.h>
  28
  29#include <linux/dvb/frontend.h>
  30#include "dvb_frontend.h"
  31
  32#include "stv6110x.h" /* for demodulator internal modes */
  33
  34#include "stv090x_reg.h"
  35#include "stv090x.h"
  36#include "stv090x_priv.h"
  37
  38/* Max transfer size done by I2C transfer functions */
  39#define MAX_XFER_SIZE  64
  40
  41static unsigned int verbose;
  42module_param(verbose, int, 0644);
  43
  44/* internal params node */
  45struct stv090x_dev {
  46        /* pointer for internal params, one for each pair of demods */
  47        struct stv090x_internal         *internal;
  48        struct stv090x_dev              *next_dev;
  49};
  50
  51/* first internal params */
  52static struct stv090x_dev *stv090x_first_dev;
  53
  54/* find chip by i2c adapter and i2c address */
  55static struct stv090x_dev *find_dev(struct i2c_adapter *i2c_adap,
  56                                        u8 i2c_addr)
  57{
  58        struct stv090x_dev *temp_dev = stv090x_first_dev;
  59
  60        /*
  61         Search of the last stv0900 chip or
  62         find it by i2c adapter and i2c address */
  63        while ((temp_dev != NULL) &&
  64                ((temp_dev->internal->i2c_adap != i2c_adap) ||
  65                (temp_dev->internal->i2c_addr != i2c_addr))) {
  66
  67                temp_dev = temp_dev->next_dev;
  68        }
  69
  70        return temp_dev;
  71}
  72
  73/* deallocating chip */
  74static void remove_dev(struct stv090x_internal *internal)
  75{
  76        struct stv090x_dev *prev_dev = stv090x_first_dev;
  77        struct stv090x_dev *del_dev = find_dev(internal->i2c_adap,
  78                                                internal->i2c_addr);
  79
  80        if (del_dev != NULL) {
  81                if (del_dev == stv090x_first_dev) {
  82                        stv090x_first_dev = del_dev->next_dev;
  83                } else {
  84                        while (prev_dev->next_dev != del_dev)
  85                                prev_dev = prev_dev->next_dev;
  86
  87                        prev_dev->next_dev = del_dev->next_dev;
  88                }
  89
  90                kfree(del_dev);
  91        }
  92}
  93
  94/* allocating new chip */
  95static struct stv090x_dev *append_internal(struct stv090x_internal *internal)
  96{
  97        struct stv090x_dev *new_dev;
  98        struct stv090x_dev *temp_dev;
  99
 100        new_dev = kmalloc(sizeof(struct stv090x_dev), GFP_KERNEL);
 101        if (new_dev != NULL) {
 102                new_dev->internal = internal;
 103                new_dev->next_dev = NULL;
 104
 105                /* append to list */
 106                if (stv090x_first_dev == NULL) {
 107                        stv090x_first_dev = new_dev;
 108                } else {
 109                        temp_dev = stv090x_first_dev;
 110                        while (temp_dev->next_dev != NULL)
 111                                temp_dev = temp_dev->next_dev;
 112
 113                        temp_dev->next_dev = new_dev;
 114                }
 115        }
 116
 117        return new_dev;
 118}
 119
 120
 121/* DVBS1 and DSS C/N Lookup table */
 122static const struct stv090x_tab stv090x_s1cn_tab[] = {
 123        {   0, 8917 }, /*  0.0dB */
 124        {   5, 8801 }, /*  0.5dB */
 125        {  10, 8667 }, /*  1.0dB */
 126        {  15, 8522 }, /*  1.5dB */
 127        {  20, 8355 }, /*  2.0dB */
 128        {  25, 8175 }, /*  2.5dB */
 129        {  30, 7979 }, /*  3.0dB */
 130        {  35, 7763 }, /*  3.5dB */
 131        {  40, 7530 }, /*  4.0dB */
 132        {  45, 7282 }, /*  4.5dB */
 133        {  50, 7026 }, /*  5.0dB */
 134        {  55, 6781 }, /*  5.5dB */
 135        {  60, 6514 }, /*  6.0dB */
 136        {  65, 6241 }, /*  6.5dB */
 137        {  70, 5965 }, /*  7.0dB */
 138        {  75, 5690 }, /*  7.5dB */
 139        {  80, 5424 }, /*  8.0dB */
 140        {  85, 5161 }, /*  8.5dB */
 141        {  90, 4902 }, /*  9.0dB */
 142        {  95, 4654 }, /*  9.5dB */
 143        { 100, 4417 }, /* 10.0dB */
 144        { 105, 4186 }, /* 10.5dB */
 145        { 110, 3968 }, /* 11.0dB */
 146        { 115, 3757 }, /* 11.5dB */
 147        { 120, 3558 }, /* 12.0dB */
 148        { 125, 3366 }, /* 12.5dB */
 149        { 130, 3185 }, /* 13.0dB */
 150        { 135, 3012 }, /* 13.5dB */
 151        { 140, 2850 }, /* 14.0dB */
 152        { 145, 2698 }, /* 14.5dB */
 153        { 150, 2550 }, /* 15.0dB */
 154        { 160, 2283 }, /* 16.0dB */
 155        { 170, 2042 }, /* 17.0dB */
 156        { 180, 1827 }, /* 18.0dB */
 157        { 190, 1636 }, /* 19.0dB */
 158        { 200, 1466 }, /* 20.0dB */
 159        { 210, 1315 }, /* 21.0dB */
 160        { 220, 1181 }, /* 22.0dB */
 161        { 230, 1064 }, /* 23.0dB */
 162        { 240,  960 }, /* 24.0dB */
 163        { 250,  869 }, /* 25.0dB */
 164        { 260,  792 }, /* 26.0dB */
 165        { 270,  724 }, /* 27.0dB */
 166        { 280,  665 }, /* 28.0dB */
 167        { 290,  616 }, /* 29.0dB */
 168        { 300,  573 }, /* 30.0dB */
 169        { 310,  537 }, /* 31.0dB */
 170        { 320,  507 }, /* 32.0dB */
 171        { 330,  483 }, /* 33.0dB */
 172        { 400,  398 }, /* 40.0dB */
 173        { 450,  381 }, /* 45.0dB */
 174        { 500,  377 }  /* 50.0dB */
 175};
 176
 177/* DVBS2 C/N Lookup table */
 178static const struct stv090x_tab stv090x_s2cn_tab[] = {
 179        { -30, 13348 }, /* -3.0dB */
 180        { -20, 12640 }, /* -2d.0B */
 181        { -10, 11883 }, /* -1.0dB */
 182        {   0, 11101 }, /* -0.0dB */
 183        {   5, 10718 }, /*  0.5dB */
 184        {  10, 10339 }, /*  1.0dB */
 185        {  15,  9947 }, /*  1.5dB */
 186        {  20,  9552 }, /*  2.0dB */
 187        {  25,  9183 }, /*  2.5dB */
 188        {  30,  8799 }, /*  3.0dB */
 189        {  35,  8422 }, /*  3.5dB */
 190        {  40,  8062 }, /*  4.0dB */
 191        {  45,  7707 }, /*  4.5dB */
 192        {  50,  7353 }, /*  5.0dB */
 193        {  55,  7025 }, /*  5.5dB */
 194        {  60,  6684 }, /*  6.0dB */
 195        {  65,  6331 }, /*  6.5dB */
 196        {  70,  6036 }, /*  7.0dB */
 197        {  75,  5727 }, /*  7.5dB */
 198        {  80,  5437 }, /*  8.0dB */
 199        {  85,  5164 }, /*  8.5dB */
 200        {  90,  4902 }, /*  9.0dB */
 201        {  95,  4653 }, /*  9.5dB */
 202        { 100,  4408 }, /* 10.0dB */
 203        { 105,  4187 }, /* 10.5dB */
 204        { 110,  3961 }, /* 11.0dB */
 205        { 115,  3751 }, /* 11.5dB */
 206        { 120,  3558 }, /* 12.0dB */
 207        { 125,  3368 }, /* 12.5dB */
 208        { 130,  3191 }, /* 13.0dB */
 209        { 135,  3017 }, /* 13.5dB */
 210        { 140,  2862 }, /* 14.0dB */
 211        { 145,  2710 }, /* 14.5dB */
 212        { 150,  2565 }, /* 15.0dB */
 213        { 160,  2300 }, /* 16.0dB */
 214        { 170,  2058 }, /* 17.0dB */
 215        { 180,  1849 }, /* 18.0dB */
 216        { 190,  1663 }, /* 19.0dB */
 217        { 200,  1495 }, /* 20.0dB */
 218        { 210,  1349 }, /* 21.0dB */
 219        { 220,  1222 }, /* 22.0dB */
 220        { 230,  1110 }, /* 23.0dB */
 221        { 240,  1011 }, /* 24.0dB */
 222        { 250,   925 }, /* 25.0dB */
 223        { 260,   853 }, /* 26.0dB */
 224        { 270,   789 }, /* 27.0dB */
 225        { 280,   734 }, /* 28.0dB */
 226        { 290,   690 }, /* 29.0dB */
 227        { 300,   650 }, /* 30.0dB */
 228        { 310,   619 }, /* 31.0dB */
 229        { 320,   593 }, /* 32.0dB */
 230        { 330,   571 }, /* 33.0dB */
 231        { 400,   498 }, /* 40.0dB */
 232        { 450,   484 }, /* 45.0dB */
 233        { 500,   481 }  /* 50.0dB */
 234};
 235
 236/* RF level C/N lookup table */
 237static const struct stv090x_tab stv090x_rf_tab[] = {
 238        {  -5, 0xcaa1 }, /*  -5dBm */
 239        { -10, 0xc229 }, /* -10dBm */
 240        { -15, 0xbb08 }, /* -15dBm */
 241        { -20, 0xb4bc }, /* -20dBm */
 242        { -25, 0xad5a }, /* -25dBm */
 243        { -30, 0xa298 }, /* -30dBm */
 244        { -35, 0x98a8 }, /* -35dBm */
 245        { -40, 0x8389 }, /* -40dBm */
 246        { -45, 0x59be }, /* -45dBm */
 247        { -50, 0x3a14 }, /* -50dBm */
 248        { -55, 0x2d11 }, /* -55dBm */
 249        { -60, 0x210d }, /* -60dBm */
 250        { -65, 0xa14f }, /* -65dBm */
 251        { -70, 0x07aa }  /* -70dBm */
 252};
 253
 254
 255static struct stv090x_reg stv0900_initval[] = {
 256
 257        { STV090x_OUTCFG,               0x00 },
 258        { STV090x_MODECFG,              0xff },
 259        { STV090x_AGCRF1CFG,            0x11 },
 260        { STV090x_AGCRF2CFG,            0x13 },
 261        { STV090x_TSGENERAL1X,          0x14 },
 262        { STV090x_TSTTNR2,              0x21 },
 263        { STV090x_TSTTNR4,              0x21 },
 264        { STV090x_P2_DISTXCTL,          0x22 },
 265        { STV090x_P2_F22TX,             0xc0 },
 266        { STV090x_P2_F22RX,             0xc0 },
 267        { STV090x_P2_DISRXCTL,          0x00 },
 268        { STV090x_P2_DMDCFGMD,          0xF9 },
 269        { STV090x_P2_DEMOD,             0x08 },
 270        { STV090x_P2_DMDCFG3,           0xc4 },
 271        { STV090x_P2_CARFREQ,           0xed },
 272        { STV090x_P2_LDT,               0xd0 },
 273        { STV090x_P2_LDT2,              0xb8 },
 274        { STV090x_P2_TMGCFG,            0xd2 },
 275        { STV090x_P2_TMGTHRISE,         0x20 },
 276        { STV090x_P1_TMGCFG,            0xd2 },
 277
 278        { STV090x_P2_TMGTHFALL,         0x00 },
 279        { STV090x_P2_FECSPY,            0x88 },
 280        { STV090x_P2_FSPYDATA,          0x3a },
 281        { STV090x_P2_FBERCPT4,          0x00 },
 282        { STV090x_P2_FSPYBER,           0x10 },
 283        { STV090x_P2_ERRCTRL1,          0x35 },
 284        { STV090x_P2_ERRCTRL2,          0xc1 },
 285        { STV090x_P2_CFRICFG,           0xf8 },
 286        { STV090x_P2_NOSCFG,            0x1c },
 287        { STV090x_P2_DMDTOM,            0x20 },
 288        { STV090x_P2_CORRELMANT,        0x70 },
 289        { STV090x_P2_CORRELABS,         0x88 },
 290        { STV090x_P2_AGC2O,             0x5b },
 291        { STV090x_P2_AGC2REF,           0x38 },
 292        { STV090x_P2_CARCFG,            0xe4 },
 293        { STV090x_P2_ACLC,              0x1A },
 294        { STV090x_P2_BCLC,              0x09 },
 295        { STV090x_P2_CARHDR,            0x08 },
 296        { STV090x_P2_KREFTMG,           0xc1 },
 297        { STV090x_P2_SFRUPRATIO,        0xf0 },
 298        { STV090x_P2_SFRLOWRATIO,       0x70 },
 299        { STV090x_P2_SFRSTEP,           0x58 },
 300        { STV090x_P2_TMGCFG2,           0x01 },
 301        { STV090x_P2_CAR2CFG,           0x26 },
 302        { STV090x_P2_BCLC2S2Q,          0x86 },
 303        { STV090x_P2_BCLC2S28,          0x86 },
 304        { STV090x_P2_SMAPCOEF7,         0x77 },
 305        { STV090x_P2_SMAPCOEF6,         0x85 },
 306        { STV090x_P2_SMAPCOEF5,         0x77 },
 307        { STV090x_P2_TSCFGL,            0x20 },
 308        { STV090x_P2_DMDCFG2,           0x3b },
 309        { STV090x_P2_MODCODLST0,        0xff },
 310        { STV090x_P2_MODCODLST1,        0xff },
 311        { STV090x_P2_MODCODLST2,        0xff },
 312        { STV090x_P2_MODCODLST3,        0xff },
 313        { STV090x_P2_MODCODLST4,        0xff },
 314        { STV090x_P2_MODCODLST5,        0xff },
 315        { STV090x_P2_MODCODLST6,        0xff },
 316        { STV090x_P2_MODCODLST7,        0xcc },
 317        { STV090x_P2_MODCODLST8,        0xcc },
 318        { STV090x_P2_MODCODLST9,        0xcc },
 319        { STV090x_P2_MODCODLSTA,        0xcc },
 320        { STV090x_P2_MODCODLSTB,        0xcc },
 321        { STV090x_P2_MODCODLSTC,        0xcc },
 322        { STV090x_P2_MODCODLSTD,        0xcc },
 323        { STV090x_P2_MODCODLSTE,        0xcc },
 324        { STV090x_P2_MODCODLSTF,        0xcf },
 325        { STV090x_P1_DISTXCTL,          0x22 },
 326        { STV090x_P1_F22TX,             0xc0 },
 327        { STV090x_P1_F22RX,             0xc0 },
 328        { STV090x_P1_DISRXCTL,          0x00 },
 329        { STV090x_P1_DMDCFGMD,          0xf9 },
 330        { STV090x_P1_DEMOD,             0x08 },
 331        { STV090x_P1_DMDCFG3,           0xc4 },
 332        { STV090x_P1_DMDTOM,            0x20 },
 333        { STV090x_P1_CARFREQ,           0xed },
 334        { STV090x_P1_LDT,               0xd0 },
 335        { STV090x_P1_LDT2,              0xb8 },
 336        { STV090x_P1_TMGCFG,            0xd2 },
 337        { STV090x_P1_TMGTHRISE,         0x20 },
 338        { STV090x_P1_TMGTHFALL,         0x00 },
 339        { STV090x_P1_SFRUPRATIO,        0xf0 },
 340        { STV090x_P1_SFRLOWRATIO,       0x70 },
 341        { STV090x_P1_TSCFGL,            0x20 },
 342        { STV090x_P1_FECSPY,            0x88 },
 343        { STV090x_P1_FSPYDATA,          0x3a },
 344        { STV090x_P1_FBERCPT4,          0x00 },
 345        { STV090x_P1_FSPYBER,           0x10 },
 346        { STV090x_P1_ERRCTRL1,          0x35 },
 347        { STV090x_P1_ERRCTRL2,          0xc1 },
 348        { STV090x_P1_CFRICFG,           0xf8 },
 349        { STV090x_P1_NOSCFG,            0x1c },
 350        { STV090x_P1_CORRELMANT,        0x70 },
 351        { STV090x_P1_CORRELABS,         0x88 },
 352        { STV090x_P1_AGC2O,             0x5b },
 353        { STV090x_P1_AGC2REF,           0x38 },
 354        { STV090x_P1_CARCFG,            0xe4 },
 355        { STV090x_P1_ACLC,              0x1A },
 356        { STV090x_P1_BCLC,              0x09 },
 357        { STV090x_P1_CARHDR,            0x08 },
 358        { STV090x_P1_KREFTMG,           0xc1 },
 359        { STV090x_P1_SFRSTEP,           0x58 },
 360        { STV090x_P1_TMGCFG2,           0x01 },
 361        { STV090x_P1_CAR2CFG,           0x26 },
 362        { STV090x_P1_BCLC2S2Q,          0x86 },
 363        { STV090x_P1_BCLC2S28,          0x86 },
 364        { STV090x_P1_SMAPCOEF7,         0x77 },
 365        { STV090x_P1_SMAPCOEF6,         0x85 },
 366        { STV090x_P1_SMAPCOEF5,         0x77 },
 367        { STV090x_P1_DMDCFG2,           0x3b },
 368        { STV090x_P1_MODCODLST0,        0xff },
 369        { STV090x_P1_MODCODLST1,        0xff },
 370        { STV090x_P1_MODCODLST2,        0xff },
 371        { STV090x_P1_MODCODLST3,        0xff },
 372        { STV090x_P1_MODCODLST4,        0xff },
 373        { STV090x_P1_MODCODLST5,        0xff },
 374        { STV090x_P1_MODCODLST6,        0xff },
 375        { STV090x_P1_MODCODLST7,        0xcc },
 376        { STV090x_P1_MODCODLST8,        0xcc },
 377        { STV090x_P1_MODCODLST9,        0xcc },
 378        { STV090x_P1_MODCODLSTA,        0xcc },
 379        { STV090x_P1_MODCODLSTB,        0xcc },
 380        { STV090x_P1_MODCODLSTC,        0xcc },
 381        { STV090x_P1_MODCODLSTD,        0xcc },
 382        { STV090x_P1_MODCODLSTE,        0xcc },
 383        { STV090x_P1_MODCODLSTF,        0xcf },
 384        { STV090x_GENCFG,               0x1d },
 385        { STV090x_NBITER_NF4,           0x37 },
 386        { STV090x_NBITER_NF5,           0x29 },
 387        { STV090x_NBITER_NF6,           0x37 },
 388        { STV090x_NBITER_NF7,           0x33 },
 389        { STV090x_NBITER_NF8,           0x31 },
 390        { STV090x_NBITER_NF9,           0x2f },
 391        { STV090x_NBITER_NF10,          0x39 },
 392        { STV090x_NBITER_NF11,          0x3a },
 393        { STV090x_NBITER_NF12,          0x29 },
 394        { STV090x_NBITER_NF13,          0x37 },
 395        { STV090x_NBITER_NF14,          0x33 },
 396        { STV090x_NBITER_NF15,          0x2f },
 397        { STV090x_NBITER_NF16,          0x39 },
 398        { STV090x_NBITER_NF17,          0x3a },
 399        { STV090x_NBITERNOERR,          0x04 },
 400        { STV090x_GAINLLR_NF4,          0x0C },
 401        { STV090x_GAINLLR_NF5,          0x0F },
 402        { STV090x_GAINLLR_NF6,          0x11 },
 403        { STV090x_GAINLLR_NF7,          0x14 },
 404        { STV090x_GAINLLR_NF8,          0x17 },
 405        { STV090x_GAINLLR_NF9,          0x19 },
 406        { STV090x_GAINLLR_NF10,         0x20 },
 407        { STV090x_GAINLLR_NF11,         0x21 },
 408        { STV090x_GAINLLR_NF12,         0x0D },
 409        { STV090x_GAINLLR_NF13,         0x0F },
 410        { STV090x_GAINLLR_NF14,         0x13 },
 411        { STV090x_GAINLLR_NF15,         0x1A },
 412        { STV090x_GAINLLR_NF16,         0x1F },
 413        { STV090x_GAINLLR_NF17,         0x21 },
 414        { STV090x_RCCFGH,               0x20 },
 415        { STV090x_P1_FECM,              0x01 }, /* disable DSS modes */
 416        { STV090x_P2_FECM,              0x01 }, /* disable DSS modes */
 417        { STV090x_P1_PRVIT,             0x2F }, /* disable PR 6/7 */
 418        { STV090x_P2_PRVIT,             0x2F }, /* disable PR 6/7 */
 419};
 420
 421static struct stv090x_reg stv0903_initval[] = {
 422        { STV090x_OUTCFG,               0x00 },
 423        { STV090x_AGCRF1CFG,            0x11 },
 424        { STV090x_STOPCLK1,             0x48 },
 425        { STV090x_STOPCLK2,             0x14 },
 426        { STV090x_TSTTNR1,              0x27 },
 427        { STV090x_TSTTNR2,              0x21 },
 428        { STV090x_P1_DISTXCTL,          0x22 },
 429        { STV090x_P1_F22TX,             0xc0 },
 430        { STV090x_P1_F22RX,             0xc0 },
 431        { STV090x_P1_DISRXCTL,          0x00 },
 432        { STV090x_P1_DMDCFGMD,          0xF9 },
 433        { STV090x_P1_DEMOD,             0x08 },
 434        { STV090x_P1_DMDCFG3,           0xc4 },
 435        { STV090x_P1_CARFREQ,           0xed },
 436        { STV090x_P1_TNRCFG2,           0x82 },
 437        { STV090x_P1_LDT,               0xd0 },
 438        { STV090x_P1_LDT2,              0xb8 },
 439        { STV090x_P1_TMGCFG,            0xd2 },
 440        { STV090x_P1_TMGTHRISE,         0x20 },
 441        { STV090x_P1_TMGTHFALL,         0x00 },
 442        { STV090x_P1_SFRUPRATIO,        0xf0 },
 443        { STV090x_P1_SFRLOWRATIO,       0x70 },
 444        { STV090x_P1_TSCFGL,            0x20 },
 445        { STV090x_P1_FECSPY,            0x88 },
 446        { STV090x_P1_FSPYDATA,          0x3a },
 447        { STV090x_P1_FBERCPT4,          0x00 },
 448        { STV090x_P1_FSPYBER,           0x10 },
 449        { STV090x_P1_ERRCTRL1,          0x35 },
 450        { STV090x_P1_ERRCTRL2,          0xc1 },
 451        { STV090x_P1_CFRICFG,           0xf8 },
 452        { STV090x_P1_NOSCFG,            0x1c },
 453        { STV090x_P1_DMDTOM,            0x20 },
 454        { STV090x_P1_CORRELMANT,        0x70 },
 455        { STV090x_P1_CORRELABS,         0x88 },
 456        { STV090x_P1_AGC2O,             0x5b },
 457        { STV090x_P1_AGC2REF,           0x38 },
 458        { STV090x_P1_CARCFG,            0xe4 },
 459        { STV090x_P1_ACLC,              0x1A },
 460        { STV090x_P1_BCLC,              0x09 },
 461        { STV090x_P1_CARHDR,            0x08 },
 462        { STV090x_P1_KREFTMG,           0xc1 },
 463        { STV090x_P1_SFRSTEP,           0x58 },
 464        { STV090x_P1_TMGCFG2,           0x01 },
 465        { STV090x_P1_CAR2CFG,           0x26 },
 466        { STV090x_P1_BCLC2S2Q,          0x86 },
 467        { STV090x_P1_BCLC2S28,          0x86 },
 468        { STV090x_P1_SMAPCOEF7,         0x77 },
 469        { STV090x_P1_SMAPCOEF6,         0x85 },
 470        { STV090x_P1_SMAPCOEF5,         0x77 },
 471        { STV090x_P1_DMDCFG2,           0x3b },
 472        { STV090x_P1_MODCODLST0,        0xff },
 473        { STV090x_P1_MODCODLST1,        0xff },
 474        { STV090x_P1_MODCODLST2,        0xff },
 475        { STV090x_P1_MODCODLST3,        0xff },
 476        { STV090x_P1_MODCODLST4,        0xff },
 477        { STV090x_P1_MODCODLST5,        0xff },
 478        { STV090x_P1_MODCODLST6,        0xff },
 479        { STV090x_P1_MODCODLST7,        0xcc },
 480        { STV090x_P1_MODCODLST8,        0xcc },
 481        { STV090x_P1_MODCODLST9,        0xcc },
 482        { STV090x_P1_MODCODLSTA,        0xcc },
 483        { STV090x_P1_MODCODLSTB,        0xcc },
 484        { STV090x_P1_MODCODLSTC,        0xcc },
 485        { STV090x_P1_MODCODLSTD,        0xcc },
 486        { STV090x_P1_MODCODLSTE,        0xcc },
 487        { STV090x_P1_MODCODLSTF,        0xcf },
 488        { STV090x_GENCFG,               0x1c },
 489        { STV090x_NBITER_NF4,           0x37 },
 490        { STV090x_NBITER_NF5,           0x29 },
 491        { STV090x_NBITER_NF6,           0x37 },
 492        { STV090x_NBITER_NF7,           0x33 },
 493        { STV090x_NBITER_NF8,           0x31 },
 494        { STV090x_NBITER_NF9,           0x2f },
 495        { STV090x_NBITER_NF10,          0x39 },
 496        { STV090x_NBITER_NF11,          0x3a },
 497        { STV090x_NBITER_NF12,          0x29 },
 498        { STV090x_NBITER_NF13,          0x37 },
 499        { STV090x_NBITER_NF14,          0x33 },
 500        { STV090x_NBITER_NF15,          0x2f },
 501        { STV090x_NBITER_NF16,          0x39 },
 502        { STV090x_NBITER_NF17,          0x3a },
 503        { STV090x_NBITERNOERR,          0x04 },
 504        { STV090x_GAINLLR_NF4,          0x0C },
 505        { STV090x_GAINLLR_NF5,          0x0F },
 506        { STV090x_GAINLLR_NF6,          0x11 },
 507        { STV090x_GAINLLR_NF7,          0x14 },
 508        { STV090x_GAINLLR_NF8,          0x17 },
 509        { STV090x_GAINLLR_NF9,          0x19 },
 510        { STV090x_GAINLLR_NF10,         0x20 },
 511        { STV090x_GAINLLR_NF11,         0x21 },
 512        { STV090x_GAINLLR_NF12,         0x0D },
 513        { STV090x_GAINLLR_NF13,         0x0F },
 514        { STV090x_GAINLLR_NF14,         0x13 },
 515        { STV090x_GAINLLR_NF15,         0x1A },
 516        { STV090x_GAINLLR_NF16,         0x1F },
 517        { STV090x_GAINLLR_NF17,         0x21 },
 518        { STV090x_RCCFGH,               0x20 },
 519        { STV090x_P1_FECM,              0x01 }, /*disable the DSS mode */
 520        { STV090x_P1_PRVIT,             0x2f }  /*disable puncture rate 6/7*/
 521};
 522
 523static struct stv090x_reg stv0900_cut20_val[] = {
 524
 525        { STV090x_P2_DMDCFG3,           0xe8 },
 526        { STV090x_P2_DMDCFG4,           0x10 },
 527        { STV090x_P2_CARFREQ,           0x38 },
 528        { STV090x_P2_CARHDR,            0x20 },
 529        { STV090x_P2_KREFTMG,           0x5a },
 530        { STV090x_P2_SMAPCOEF7,         0x06 },
 531        { STV090x_P2_SMAPCOEF6,         0x00 },
 532        { STV090x_P2_SMAPCOEF5,         0x04 },
 533        { STV090x_P2_NOSCFG,            0x0c },
 534        { STV090x_P1_DMDCFG3,           0xe8 },
 535        { STV090x_P1_DMDCFG4,           0x10 },
 536        { STV090x_P1_CARFREQ,           0x38 },
 537        { STV090x_P1_CARHDR,            0x20 },
 538        { STV090x_P1_KREFTMG,           0x5a },
 539        { STV090x_P1_SMAPCOEF7,         0x06 },
 540        { STV090x_P1_SMAPCOEF6,         0x00 },
 541        { STV090x_P1_SMAPCOEF5,         0x04 },
 542        { STV090x_P1_NOSCFG,            0x0c },
 543        { STV090x_GAINLLR_NF4,          0x21 },
 544        { STV090x_GAINLLR_NF5,          0x21 },
 545        { STV090x_GAINLLR_NF6,          0x20 },
 546        { STV090x_GAINLLR_NF7,          0x1F },
 547        { STV090x_GAINLLR_NF8,          0x1E },
 548        { STV090x_GAINLLR_NF9,          0x1E },
 549        { STV090x_GAINLLR_NF10,         0x1D },
 550        { STV090x_GAINLLR_NF11,         0x1B },
 551        { STV090x_GAINLLR_NF12,         0x20 },
 552        { STV090x_GAINLLR_NF13,         0x20 },
 553        { STV090x_GAINLLR_NF14,         0x20 },
 554        { STV090x_GAINLLR_NF15,         0x20 },
 555        { STV090x_GAINLLR_NF16,         0x20 },
 556        { STV090x_GAINLLR_NF17,         0x21 },
 557};
 558
 559static struct stv090x_reg stv0903_cut20_val[] = {
 560        { STV090x_P1_DMDCFG3,           0xe8 },
 561        { STV090x_P1_DMDCFG4,           0x10 },
 562        { STV090x_P1_CARFREQ,           0x38 },
 563        { STV090x_P1_CARHDR,            0x20 },
 564        { STV090x_P1_KREFTMG,           0x5a },
 565        { STV090x_P1_SMAPCOEF7,         0x06 },
 566        { STV090x_P1_SMAPCOEF6,         0x00 },
 567        { STV090x_P1_SMAPCOEF5,         0x04 },
 568        { STV090x_P1_NOSCFG,            0x0c },
 569        { STV090x_GAINLLR_NF4,          0x21 },
 570        { STV090x_GAINLLR_NF5,          0x21 },
 571        { STV090x_GAINLLR_NF6,          0x20 },
 572        { STV090x_GAINLLR_NF7,          0x1F },
 573        { STV090x_GAINLLR_NF8,          0x1E },
 574        { STV090x_GAINLLR_NF9,          0x1E },
 575        { STV090x_GAINLLR_NF10,         0x1D },
 576        { STV090x_GAINLLR_NF11,         0x1B },
 577        { STV090x_GAINLLR_NF12,         0x20 },
 578        { STV090x_GAINLLR_NF13,         0x20 },
 579        { STV090x_GAINLLR_NF14,         0x20 },
 580        { STV090x_GAINLLR_NF15,         0x20 },
 581        { STV090x_GAINLLR_NF16,         0x20 },
 582        { STV090x_GAINLLR_NF17,         0x21 }
 583};
 584
 585/* Cut 2.0 Long Frame Tracking CR loop */
 586static struct stv090x_long_frame_crloop stv090x_s2_crl_cut20[] = {
 587        /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 588        { STV090x_QPSK_12,  0x1f, 0x3f, 0x1e, 0x3f, 0x3d, 0x1f, 0x3d, 0x3e, 0x3d, 0x1e },
 589        { STV090x_QPSK_35,  0x2f, 0x3f, 0x2e, 0x2f, 0x3d, 0x0f, 0x0e, 0x2e, 0x3d, 0x0e },
 590        { STV090x_QPSK_23,  0x2f, 0x3f, 0x2e, 0x2f, 0x0e, 0x0f, 0x0e, 0x1e, 0x3d, 0x3d },
 591        { STV090x_QPSK_34,  0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 592        { STV090x_QPSK_45,  0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 593        { STV090x_QPSK_56,  0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 594        { STV090x_QPSK_89,  0x3f, 0x3f, 0x3e, 0x1f, 0x1e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 595        { STV090x_QPSK_910, 0x3f, 0x3f, 0x3e, 0x1f, 0x1e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 596        { STV090x_8PSK_35,  0x3c, 0x3e, 0x1c, 0x2e, 0x0c, 0x1e, 0x2b, 0x2d, 0x1b, 0x1d },
 597        { STV090x_8PSK_23,  0x1d, 0x3e, 0x3c, 0x2e, 0x2c, 0x1e, 0x0c, 0x2d, 0x2b, 0x1d },
 598        { STV090x_8PSK_34,  0x0e, 0x3e, 0x3d, 0x2e, 0x0d, 0x1e, 0x2c, 0x2d, 0x0c, 0x1d },
 599        { STV090x_8PSK_56,  0x2e, 0x3e, 0x1e, 0x2e, 0x2d, 0x1e, 0x3c, 0x2d, 0x2c, 0x1d },
 600        { STV090x_8PSK_89,  0x3e, 0x3e, 0x1e, 0x2e, 0x3d, 0x1e, 0x0d, 0x2d, 0x3c, 0x1d },
 601        { STV090x_8PSK_910, 0x3e, 0x3e, 0x1e, 0x2e, 0x3d, 0x1e, 0x1d, 0x2d, 0x0d, 0x1d }
 602};
 603
 604/* Cut 3.0 Long Frame Tracking CR loop */
 605static  struct stv090x_long_frame_crloop stv090x_s2_crl_cut30[] = {
 606        /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 607        { STV090x_QPSK_12,  0x3c, 0x2c, 0x0c, 0x2c, 0x1b, 0x2c, 0x1b, 0x1c, 0x0b, 0x3b },
 608        { STV090x_QPSK_35,  0x0d, 0x0d, 0x0c, 0x0d, 0x1b, 0x3c, 0x1b, 0x1c, 0x0b, 0x3b },
 609        { STV090x_QPSK_23,  0x1d, 0x0d, 0x0c, 0x1d, 0x2b, 0x3c, 0x1b, 0x1c, 0x0b, 0x3b },
 610        { STV090x_QPSK_34,  0x1d, 0x1d, 0x0c, 0x1d, 0x2b, 0x3c, 0x1b, 0x1c, 0x0b, 0x3b },
 611        { STV090x_QPSK_45,  0x2d, 0x1d, 0x1c, 0x1d, 0x2b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
 612        { STV090x_QPSK_56,  0x2d, 0x1d, 0x1c, 0x1d, 0x2b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
 613        { STV090x_QPSK_89,  0x3d, 0x2d, 0x1c, 0x1d, 0x3b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
 614        { STV090x_QPSK_910, 0x3d, 0x2d, 0x1c, 0x1d, 0x3b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
 615        { STV090x_8PSK_35,  0x39, 0x29, 0x39, 0x19, 0x19, 0x19, 0x19, 0x19, 0x09, 0x19 },
 616        { STV090x_8PSK_23,  0x2a, 0x39, 0x1a, 0x0a, 0x39, 0x0a, 0x29, 0x39, 0x29, 0x0a },
 617        { STV090x_8PSK_34,  0x2b, 0x3a, 0x1b, 0x1b, 0x3a, 0x1b, 0x1a, 0x0b, 0x1a, 0x3a },
 618        { STV090x_8PSK_56,  0x0c, 0x1b, 0x3b, 0x3b, 0x1b, 0x3b, 0x3a, 0x3b, 0x3a, 0x1b },
 619        { STV090x_8PSK_89,  0x0d, 0x3c, 0x2c, 0x2c, 0x2b, 0x0c, 0x0b, 0x3b, 0x0b, 0x1b },
 620        { STV090x_8PSK_910, 0x0d, 0x0d, 0x2c, 0x3c, 0x3b, 0x1c, 0x0b, 0x3b, 0x0b, 0x1b }
 621};
 622
 623/* Cut 2.0 Long Frame Tracking CR Loop */
 624static struct stv090x_long_frame_crloop stv090x_s2_apsk_crl_cut20[] = {
 625        /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 626        { STV090x_16APSK_23,  0x0c, 0x0c, 0x0c, 0x0c, 0x1d, 0x0c, 0x3c, 0x0c, 0x2c, 0x0c },
 627        { STV090x_16APSK_34,  0x0c, 0x0c, 0x0c, 0x0c, 0x0e, 0x0c, 0x2d, 0x0c, 0x1d, 0x0c },
 628        { STV090x_16APSK_45,  0x0c, 0x0c, 0x0c, 0x0c, 0x1e, 0x0c, 0x3d, 0x0c, 0x2d, 0x0c },
 629        { STV090x_16APSK_56,  0x0c, 0x0c, 0x0c, 0x0c, 0x1e, 0x0c, 0x3d, 0x0c, 0x2d, 0x0c },
 630        { STV090x_16APSK_89,  0x0c, 0x0c, 0x0c, 0x0c, 0x2e, 0x0c, 0x0e, 0x0c, 0x3d, 0x0c },
 631        { STV090x_16APSK_910, 0x0c, 0x0c, 0x0c, 0x0c, 0x2e, 0x0c, 0x0e, 0x0c, 0x3d, 0x0c },
 632        { STV090x_32APSK_34,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 633        { STV090x_32APSK_45,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 634        { STV090x_32APSK_56,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 635        { STV090x_32APSK_89,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 636        { STV090x_32APSK_910, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c }
 637};
 638
 639/* Cut 3.0 Long Frame Tracking CR Loop */
 640static struct stv090x_long_frame_crloop stv090x_s2_apsk_crl_cut30[] = {
 641        /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 642        { STV090x_16APSK_23,  0x0a, 0x0a, 0x0a, 0x0a, 0x1a, 0x0a, 0x3a, 0x0a, 0x2a, 0x0a },
 643        { STV090x_16APSK_34,  0x0a, 0x0a, 0x0a, 0x0a, 0x0b, 0x0a, 0x3b, 0x0a, 0x1b, 0x0a },
 644        { STV090x_16APSK_45,  0x0a, 0x0a, 0x0a, 0x0a, 0x1b, 0x0a, 0x3b, 0x0a, 0x2b, 0x0a },
 645        { STV090x_16APSK_56,  0x0a, 0x0a, 0x0a, 0x0a, 0x1b, 0x0a, 0x3b, 0x0a, 0x2b, 0x0a },
 646        { STV090x_16APSK_89,  0x0a, 0x0a, 0x0a, 0x0a, 0x2b, 0x0a, 0x0c, 0x0a, 0x3b, 0x0a },
 647        { STV090x_16APSK_910, 0x0a, 0x0a, 0x0a, 0x0a, 0x2b, 0x0a, 0x0c, 0x0a, 0x3b, 0x0a },
 648        { STV090x_32APSK_34,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
 649        { STV090x_32APSK_45,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
 650        { STV090x_32APSK_56,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
 651        { STV090x_32APSK_89,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
 652        { STV090x_32APSK_910, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a }
 653};
 654
 655static struct stv090x_long_frame_crloop stv090x_s2_lowqpsk_crl_cut20[] = {
 656        /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 657        { STV090x_QPSK_14,  0x0f, 0x3f, 0x0e, 0x3f, 0x2d, 0x2f, 0x2d, 0x1f, 0x3d, 0x3e },
 658        { STV090x_QPSK_13,  0x0f, 0x3f, 0x0e, 0x3f, 0x2d, 0x2f, 0x3d, 0x0f, 0x3d, 0x2e },
 659        { STV090x_QPSK_25,  0x1f, 0x3f, 0x1e, 0x3f, 0x3d, 0x1f, 0x3d, 0x3e, 0x3d, 0x2e }
 660};
 661
 662static struct stv090x_long_frame_crloop stv090x_s2_lowqpsk_crl_cut30[] = {
 663        /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 664        { STV090x_QPSK_14,  0x0c, 0x3c, 0x0b, 0x3c, 0x2a, 0x2c, 0x2a, 0x1c, 0x3a, 0x3b },
 665        { STV090x_QPSK_13,  0x0c, 0x3c, 0x0b, 0x3c, 0x2a, 0x2c, 0x3a, 0x0c, 0x3a, 0x2b },
 666        { STV090x_QPSK_25,  0x1c, 0x3c, 0x1b, 0x3c, 0x3a, 0x1c, 0x3a, 0x3b, 0x3a, 0x2b }
 667};
 668
 669/* Cut 2.0 Short Frame Tracking CR Loop */
 670static struct stv090x_short_frame_crloop stv090x_s2_short_crl_cut20[] = {
 671        /* MODCOD         2M    5M    10M   20M   30M */
 672        { STV090x_QPSK,   0x2f, 0x2e, 0x0e, 0x0e, 0x3d },
 673        { STV090x_8PSK,   0x3e, 0x0e, 0x2d, 0x0d, 0x3c },
 674        { STV090x_16APSK, 0x1e, 0x1e, 0x1e, 0x3d, 0x2d },
 675        { STV090x_32APSK, 0x1e, 0x1e, 0x1e, 0x3d, 0x2d }
 676};
 677
 678/* Cut 3.0 Short Frame Tracking CR Loop */
 679static struct stv090x_short_frame_crloop stv090x_s2_short_crl_cut30[] = {
 680        /* MODCOD         2M    5M    10M   20M   30M */
 681        { STV090x_QPSK,   0x2C, 0x2B, 0x0B, 0x0B, 0x3A },
 682        { STV090x_8PSK,   0x3B, 0x0B, 0x2A, 0x0A, 0x39 },
 683        { STV090x_16APSK, 0x1B, 0x1B, 0x1B, 0x3A, 0x2A },
 684        { STV090x_32APSK, 0x1B, 0x1B, 0x1B, 0x3A, 0x2A }
 685};
 686
 687static inline s32 comp2(s32 __x, s32 __width)
 688{
 689        if (__width == 32)
 690                return __x;
 691        else
 692                return (__x >= (1 << (__width - 1))) ? (__x - (1 << __width)) : __x;
 693}
 694
 695static int stv090x_read_reg(struct stv090x_state *state, unsigned int reg)
 696{
 697        const struct stv090x_config *config = state->config;
 698        int ret;
 699
 700        u8 b0[] = { reg >> 8, reg & 0xff };
 701        u8 buf;
 702
 703        struct i2c_msg msg[] = {
 704                { .addr = config->address, .flags       = 0,            .buf = b0,   .len = 2 },
 705                { .addr = config->address, .flags       = I2C_M_RD,     .buf = &buf, .len = 1 }
 706        };
 707
 708        ret = i2c_transfer(state->i2c, msg, 2);
 709        if (ret != 2) {
 710                if (ret != -ERESTARTSYS)
 711                        dprintk(FE_ERROR, 1,
 712                                "Read error, Reg=[0x%02x], Status=%d",
 713                                reg, ret);
 714
 715                return ret < 0 ? ret : -EREMOTEIO;
 716        }
 717        if (unlikely(*state->verbose >= FE_DEBUGREG))
 718                dprintk(FE_ERROR, 1, "Reg=[0x%02x], data=%02x",
 719                        reg, buf);
 720
 721        return (unsigned int) buf;
 722}
 723
 724static int stv090x_write_regs(struct stv090x_state *state, unsigned int reg, u8 *data, u32 count)
 725{
 726        const struct stv090x_config *config = state->config;
 727        int ret;
 728        u8 buf[MAX_XFER_SIZE];
 729        struct i2c_msg i2c_msg = { .addr = config->address, .flags = 0, .buf = buf, .len = 2 + count };
 730
 731        if (2 + count > sizeof(buf)) {
 732                printk(KERN_WARNING
 733                       "%s: i2c wr reg=%04x: len=%d is too big!\n",
 734                       KBUILD_MODNAME, reg, count);
 735                return -EINVAL;
 736        }
 737
 738        buf[0] = reg >> 8;
 739        buf[1] = reg & 0xff;
 740        memcpy(&buf[2], data, count);
 741
 742        if (unlikely(*state->verbose >= FE_DEBUGREG)) {
 743                int i;
 744
 745                printk(KERN_DEBUG "%s [0x%04x]:", __func__, reg);
 746                for (i = 0; i < count; i++)
 747                        printk(" %02x", data[i]);
 748                printk("\n");
 749        }
 750
 751        ret = i2c_transfer(state->i2c, &i2c_msg, 1);
 752        if (ret != 1) {
 753                if (ret != -ERESTARTSYS)
 754                        dprintk(FE_ERROR, 1, "Reg=[0x%04x], Data=[0x%02x ...], Count=%u, Status=%d",
 755                                reg, data[0], count, ret);
 756                return ret < 0 ? ret : -EREMOTEIO;
 757        }
 758
 759        return 0;
 760}
 761
 762static int stv090x_write_reg(struct stv090x_state *state, unsigned int reg, u8 data)
 763{
 764        return stv090x_write_regs(state, reg, &data, 1);
 765}
 766
 767static int stv090x_i2c_gate_ctrl(struct stv090x_state *state, int enable)
 768{
 769        u32 reg;
 770
 771        /*
 772         * NOTE! A lock is used as a FSM to control the state in which
 773         * access is serialized between two tuners on the same demod.
 774         * This has nothing to do with a lock to protect a critical section
 775         * which may in some other cases be confused with protecting I/O
 776         * access to the demodulator gate.
 777         * In case of any error, the lock is unlocked and exit within the
 778         * relevant operations themselves.
 779         */
 780        if (enable) {
 781                if (state->config->tuner_i2c_lock)
 782                        state->config->tuner_i2c_lock(&state->frontend, 1);
 783                else
 784                        mutex_lock(&state->internal->tuner_lock);
 785        }
 786
 787        reg = STV090x_READ_DEMOD(state, I2CRPT);
 788        if (enable) {
 789                dprintk(FE_DEBUG, 1, "Enable Gate");
 790                STV090x_SETFIELD_Px(reg, I2CT_ON_FIELD, 1);
 791                if (STV090x_WRITE_DEMOD(state, I2CRPT, reg) < 0)
 792                        goto err;
 793
 794        } else {
 795                dprintk(FE_DEBUG, 1, "Disable Gate");
 796                STV090x_SETFIELD_Px(reg, I2CT_ON_FIELD, 0);
 797                if ((STV090x_WRITE_DEMOD(state, I2CRPT, reg)) < 0)
 798                        goto err;
 799        }
 800
 801        if (!enable) {
 802                if (state->config->tuner_i2c_lock)
 803                        state->config->tuner_i2c_lock(&state->frontend, 0);
 804                else
 805                        mutex_unlock(&state->internal->tuner_lock);
 806        }
 807
 808        return 0;
 809err:
 810        dprintk(FE_ERROR, 1, "I/O error");
 811        if (state->config->tuner_i2c_lock)
 812                state->config->tuner_i2c_lock(&state->frontend, 0);
 813        else
 814                mutex_unlock(&state->internal->tuner_lock);
 815        return -1;
 816}
 817
 818static void stv090x_get_lock_tmg(struct stv090x_state *state)
 819{
 820        switch (state->algo) {
 821        case STV090x_BLIND_SEARCH:
 822                dprintk(FE_DEBUG, 1, "Blind Search");
 823                if (state->srate <= 1500000) {  /*10Msps< SR <=15Msps*/
 824                        state->DemodTimeout = 1500;
 825                        state->FecTimeout = 400;
 826                } else if (state->srate <= 5000000) {  /*10Msps< SR <=15Msps*/
 827                        state->DemodTimeout = 1000;
 828                        state->FecTimeout = 300;
 829                } else {  /*SR >20Msps*/
 830                        state->DemodTimeout = 700;
 831                        state->FecTimeout = 100;
 832                }
 833                break;
 834
 835        case STV090x_COLD_SEARCH:
 836        case STV090x_WARM_SEARCH:
 837        default:
 838                dprintk(FE_DEBUG, 1, "Normal Search");
 839                if (state->srate <= 1000000) {  /*SR <=1Msps*/
 840                        state->DemodTimeout = 4500;
 841                        state->FecTimeout = 1700;
 842                } else if (state->srate <= 2000000) { /*1Msps < SR <= 2Msps */
 843                        state->DemodTimeout = 2500;
 844                        state->FecTimeout = 1100;
 845                } else if (state->srate <= 5000000) { /*2Msps < SR <= 5Msps */
 846                        state->DemodTimeout = 1000;
 847                        state->FecTimeout = 550;
 848                } else if (state->srate <= 10000000) { /*5Msps < SR <= 10Msps */
 849                        state->DemodTimeout = 700;
 850                        state->FecTimeout = 250;
 851                } else if (state->srate <= 20000000) { /*10Msps < SR <= 20Msps */
 852                        state->DemodTimeout = 400;
 853                        state->FecTimeout = 130;
 854                } else {   /*SR >20Msps*/
 855                        state->DemodTimeout = 300;
 856                        state->FecTimeout = 100;
 857                }
 858                break;
 859        }
 860
 861        if (state->algo == STV090x_WARM_SEARCH)
 862                state->DemodTimeout /= 2;
 863}
 864
 865static int stv090x_set_srate(struct stv090x_state *state, u32 srate)
 866{
 867        u32 sym;
 868
 869        if (srate > 60000000) {
 870                sym  = (srate << 4); /* SR * 2^16 / master_clk */
 871                sym /= (state->internal->mclk >> 12);
 872        } else if (srate > 6000000) {
 873                sym  = (srate << 6);
 874                sym /= (state->internal->mclk >> 10);
 875        } else {
 876                sym  = (srate << 9);
 877                sym /= (state->internal->mclk >> 7);
 878        }
 879
 880        if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0x7f) < 0) /* MSB */
 881                goto err;
 882        if (STV090x_WRITE_DEMOD(state, SFRINIT0, (sym & 0xff)) < 0) /* LSB */
 883                goto err;
 884
 885        return 0;
 886err:
 887        dprintk(FE_ERROR, 1, "I/O error");
 888        return -1;
 889}
 890
 891static int stv090x_set_max_srate(struct stv090x_state *state, u32 clk, u32 srate)
 892{
 893        u32 sym;
 894
 895        srate = 105 * (srate / 100);
 896        if (srate > 60000000) {
 897                sym  = (srate << 4); /* SR * 2^16 / master_clk */
 898                sym /= (state->internal->mclk >> 12);
 899        } else if (srate > 6000000) {
 900                sym  = (srate << 6);
 901                sym /= (state->internal->mclk >> 10);
 902        } else {
 903                sym  = (srate << 9);
 904                sym /= (state->internal->mclk >> 7);
 905        }
 906
 907        if (sym < 0x7fff) {
 908                if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0) /* MSB */
 909                        goto err;
 910                if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0) /* LSB */
 911                        goto err;
 912        } else {
 913                if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x7f) < 0) /* MSB */
 914                        goto err;
 915                if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xff) < 0) /* LSB */
 916                        goto err;
 917        }
 918
 919        return 0;
 920err:
 921        dprintk(FE_ERROR, 1, "I/O error");
 922        return -1;
 923}
 924
 925static int stv090x_set_min_srate(struct stv090x_state *state, u32 clk, u32 srate)
 926{
 927        u32 sym;
 928
 929        srate = 95 * (srate / 100);
 930        if (srate > 60000000) {
 931                sym  = (srate << 4); /* SR * 2^16 / master_clk */
 932                sym /= (state->internal->mclk >> 12);
 933        } else if (srate > 6000000) {
 934                sym  = (srate << 6);
 935                sym /= (state->internal->mclk >> 10);
 936        } else {
 937                sym  = (srate << 9);
 938                sym /= (state->internal->mclk >> 7);
 939        }
 940
 941        if (STV090x_WRITE_DEMOD(state, SFRLOW1, ((sym >> 8) & 0x7f)) < 0) /* MSB */
 942                goto err;
 943        if (STV090x_WRITE_DEMOD(state, SFRLOW0, (sym & 0xff)) < 0) /* LSB */
 944                goto err;
 945        return 0;
 946err:
 947        dprintk(FE_ERROR, 1, "I/O error");
 948        return -1;
 949}
 950
 951static u32 stv090x_car_width(u32 srate, enum stv090x_rolloff rolloff)
 952{
 953        u32 ro;
 954
 955        switch (rolloff) {
 956        case STV090x_RO_20:
 957                ro = 20;
 958                break;
 959        case STV090x_RO_25:
 960                ro = 25;
 961                break;
 962        case STV090x_RO_35:
 963        default:
 964                ro = 35;
 965                break;
 966        }
 967
 968        return srate + (srate * ro) / 100;
 969}
 970
 971static int stv090x_set_vit_thacq(struct stv090x_state *state)
 972{
 973        if (STV090x_WRITE_DEMOD(state, VTH12, 0x96) < 0)
 974                goto err;
 975        if (STV090x_WRITE_DEMOD(state, VTH23, 0x64) < 0)
 976                goto err;
 977        if (STV090x_WRITE_DEMOD(state, VTH34, 0x36) < 0)
 978                goto err;
 979        if (STV090x_WRITE_DEMOD(state, VTH56, 0x23) < 0)
 980                goto err;
 981        if (STV090x_WRITE_DEMOD(state, VTH67, 0x1e) < 0)
 982                goto err;
 983        if (STV090x_WRITE_DEMOD(state, VTH78, 0x19) < 0)
 984                goto err;
 985        return 0;
 986err:
 987        dprintk(FE_ERROR, 1, "I/O error");
 988        return -1;
 989}
 990
 991static int stv090x_set_vit_thtracq(struct stv090x_state *state)
 992{
 993        if (STV090x_WRITE_DEMOD(state, VTH12, 0xd0) < 0)
 994                goto err;
 995        if (STV090x_WRITE_DEMOD(state, VTH23, 0x7d) < 0)
 996                goto err;
 997        if (STV090x_WRITE_DEMOD(state, VTH34, 0x53) < 0)
 998                goto err;
 999        if (STV090x_WRITE_DEMOD(state, VTH56, 0x2f) < 0)
1000                goto err;
1001        if (STV090x_WRITE_DEMOD(state, VTH67, 0x24) < 0)
1002                goto err;
1003        if (STV090x_WRITE_DEMOD(state, VTH78, 0x1f) < 0)
1004                goto err;
1005        return 0;
1006err:
1007        dprintk(FE_ERROR, 1, "I/O error");
1008        return -1;
1009}
1010
1011static int stv090x_set_viterbi(struct stv090x_state *state)
1012{
1013        switch (state->search_mode) {
1014        case STV090x_SEARCH_AUTO:
1015                if (STV090x_WRITE_DEMOD(state, FECM, 0x10) < 0) /* DVB-S and DVB-S2 */
1016                        goto err;
1017                if (STV090x_WRITE_DEMOD(state, PRVIT, 0x3f) < 0) /* all puncture rate */
1018                        goto err;
1019                break;
1020        case STV090x_SEARCH_DVBS1:
1021                if (STV090x_WRITE_DEMOD(state, FECM, 0x00) < 0) /* disable DSS */
1022                        goto err;
1023                switch (state->fec) {
1024                case STV090x_PR12:
1025                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x01) < 0)
1026                                goto err;
1027                        break;
1028
1029                case STV090x_PR23:
1030                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x02) < 0)
1031                                goto err;
1032                        break;
1033
1034                case STV090x_PR34:
1035                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x04) < 0)
1036                                goto err;
1037                        break;
1038
1039                case STV090x_PR56:
1040                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x08) < 0)
1041                                goto err;
1042                        break;
1043
1044                case STV090x_PR78:
1045                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x20) < 0)
1046                                goto err;
1047                        break;
1048
1049                default:
1050                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x2f) < 0) /* all */
1051                                goto err;
1052                        break;
1053                }
1054                break;
1055        case STV090x_SEARCH_DSS:
1056                if (STV090x_WRITE_DEMOD(state, FECM, 0x80) < 0)
1057                        goto err;
1058                switch (state->fec) {
1059                case STV090x_PR12:
1060                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x01) < 0)
1061                                goto err;
1062                        break;
1063
1064                case STV090x_PR23:
1065                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x02) < 0)
1066                                goto err;
1067                        break;
1068
1069                case STV090x_PR67:
1070                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x10) < 0)
1071                                goto err;
1072                        break;
1073
1074                default:
1075                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x13) < 0) /* 1/2, 2/3, 6/7 */
1076                                goto err;
1077                        break;
1078                }
1079                break;
1080        default:
1081                break;
1082        }
1083        return 0;
1084err:
1085        dprintk(FE_ERROR, 1, "I/O error");
1086        return -1;
1087}
1088
1089static int stv090x_stop_modcod(struct stv090x_state *state)
1090{
1091        if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1092                goto err;
1093        if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xff) < 0)
1094                goto err;
1095        if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xff) < 0)
1096                goto err;
1097        if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xff) < 0)
1098                goto err;
1099        if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xff) < 0)
1100                goto err;
1101        if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xff) < 0)
1102                goto err;
1103        if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xff) < 0)
1104                goto err;
1105        if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xff) < 0)
1106                goto err;
1107        if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xff) < 0)
1108                goto err;
1109        if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xff) < 0)
1110                goto err;
1111        if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xff) < 0)
1112                goto err;
1113        if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xff) < 0)
1114                goto err;
1115        if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xff) < 0)
1116                goto err;
1117        if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xff) < 0)
1118                goto err;
1119        if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xff) < 0)
1120                goto err;
1121        if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xff) < 0)
1122                goto err;
1123        return 0;
1124err:
1125        dprintk(FE_ERROR, 1, "I/O error");
1126        return -1;
1127}
1128
1129static int stv090x_activate_modcod(struct stv090x_state *state)
1130{
1131        if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1132                goto err;
1133        if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xfc) < 0)
1134                goto err;
1135        if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xcc) < 0)
1136                goto err;
1137        if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xcc) < 0)
1138                goto err;
1139        if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xcc) < 0)
1140                goto err;
1141        if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xcc) < 0)
1142                goto err;
1143        if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xcc) < 0)
1144                goto err;
1145        if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xcc) < 0)
1146                goto err;
1147        if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xcc) < 0)
1148                goto err;
1149        if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xcc) < 0)
1150                goto err;
1151        if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xcc) < 0)
1152                goto err;
1153        if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xcc) < 0)
1154                goto err;
1155        if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xcc) < 0)
1156                goto err;
1157        if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xcc) < 0)
1158                goto err;
1159        if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xcc) < 0)
1160                goto err;
1161        if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xcf) < 0)
1162                goto err;
1163
1164        return 0;
1165err:
1166        dprintk(FE_ERROR, 1, "I/O error");
1167        return -1;
1168}
1169
1170static int stv090x_activate_modcod_single(struct stv090x_state *state)
1171{
1172
1173        if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1174                goto err;
1175        if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xf0) < 0)
1176                goto err;
1177        if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0x00) < 0)
1178                goto err;
1179        if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0x00) < 0)
1180                goto err;
1181        if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0x00) < 0)
1182                goto err;
1183        if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0x00) < 0)
1184                goto err;
1185        if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0x00) < 0)
1186                goto err;
1187        if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0x00) < 0)
1188                goto err;
1189        if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0x00) < 0)
1190                goto err;
1191        if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0x00) < 0)
1192                goto err;
1193        if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0x00) < 0)
1194                goto err;
1195        if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0x00) < 0)
1196                goto err;
1197        if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0x00) < 0)
1198                goto err;
1199        if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0x00) < 0)
1200                goto err;
1201        if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0x00) < 0)
1202                goto err;
1203        if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0x0f) < 0)
1204                goto err;
1205
1206        return 0;
1207
1208err:
1209        dprintk(FE_ERROR, 1, "I/O error");
1210        return -1;
1211}
1212
1213static int stv090x_vitclk_ctl(struct stv090x_state *state, int enable)
1214{
1215        u32 reg;
1216
1217        switch (state->demod) {
1218        case STV090x_DEMODULATOR_0:
1219                mutex_lock(&state->internal->demod_lock);
1220                reg = stv090x_read_reg(state, STV090x_STOPCLK2);
1221                STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, enable);
1222                if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
1223                        goto err;
1224                mutex_unlock(&state->internal->demod_lock);
1225                break;
1226
1227        case STV090x_DEMODULATOR_1:
1228                mutex_lock(&state->internal->demod_lock);
1229                reg = stv090x_read_reg(state, STV090x_STOPCLK2);
1230                STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, enable);
1231                if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
1232                        goto err;
1233                mutex_unlock(&state->internal->demod_lock);
1234                break;
1235
1236        default:
1237                dprintk(FE_ERROR, 1, "Wrong demodulator!");
1238                break;
1239        }
1240        return 0;
1241err:
1242        mutex_unlock(&state->internal->demod_lock);
1243        dprintk(FE_ERROR, 1, "I/O error");
1244        return -1;
1245}
1246
1247static int stv090x_dvbs_track_crl(struct stv090x_state *state)
1248{
1249        if (state->internal->dev_ver >= 0x30) {
1250                /* Set ACLC BCLC optimised value vs SR */
1251                if (state->srate >= 15000000) {
1252                        if (STV090x_WRITE_DEMOD(state, ACLC, 0x2b) < 0)
1253                                goto err;
1254                        if (STV090x_WRITE_DEMOD(state, BCLC, 0x1a) < 0)
1255                                goto err;
1256                } else if ((state->srate >= 7000000) && (15000000 > state->srate)) {
1257                        if (STV090x_WRITE_DEMOD(state, ACLC, 0x0c) < 0)
1258                                goto err;
1259                        if (STV090x_WRITE_DEMOD(state, BCLC, 0x1b) < 0)
1260                                goto err;
1261                } else if (state->srate < 7000000) {
1262                        if (STV090x_WRITE_DEMOD(state, ACLC, 0x2c) < 0)
1263                                goto err;
1264                        if (STV090x_WRITE_DEMOD(state, BCLC, 0x1c) < 0)
1265                                goto err;
1266                }
1267
1268        } else {
1269                /* Cut 2.0 */
1270                if (STV090x_WRITE_DEMOD(state, ACLC, 0x1a) < 0)
1271                        goto err;
1272                if (STV090x_WRITE_DEMOD(state, BCLC, 0x09) < 0)
1273                        goto err;
1274        }
1275        return 0;
1276err:
1277        dprintk(FE_ERROR, 1, "I/O error");
1278        return -1;
1279}
1280
1281static int stv090x_delivery_search(struct stv090x_state *state)
1282{
1283        u32 reg;
1284
1285        switch (state->search_mode) {
1286        case STV090x_SEARCH_DVBS1:
1287        case STV090x_SEARCH_DSS:
1288                reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1289                STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1290                STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1291                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1292                        goto err;
1293
1294                /* Activate Viterbi decoder in legacy search,
1295                 * do not use FRESVIT1, might impact VITERBI2
1296                 */
1297                if (stv090x_vitclk_ctl(state, 0) < 0)
1298                        goto err;
1299
1300                if (stv090x_dvbs_track_crl(state) < 0)
1301                        goto err;
1302
1303                if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x22) < 0) /* disable DVB-S2 */
1304                        goto err;
1305
1306                if (stv090x_set_vit_thacq(state) < 0)
1307                        goto err;
1308                if (stv090x_set_viterbi(state) < 0)
1309                        goto err;
1310                break;
1311
1312        case STV090x_SEARCH_DVBS2:
1313                reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1314                STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
1315                STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1316                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1317                        goto err;
1318                STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1319                STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
1320                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1321                        goto err;
1322
1323                if (stv090x_vitclk_ctl(state, 1) < 0)
1324                        goto err;
1325
1326                if (STV090x_WRITE_DEMOD(state, ACLC, 0x1a) < 0) /* stop DVB-S CR loop */
1327                        goto err;
1328                if (STV090x_WRITE_DEMOD(state, BCLC, 0x09) < 0)
1329                        goto err;
1330
1331                if (state->internal->dev_ver <= 0x20) {
1332                        /* enable S2 carrier loop */
1333                        if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x26) < 0)
1334                                goto err;
1335                } else {
1336                        /* > Cut 3: Stop carrier 3 */
1337                        if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x66) < 0)
1338                                goto err;
1339                }
1340
1341                if (state->demod_mode != STV090x_SINGLE) {
1342                        /* Cut 2: enable link during search */
1343                        if (stv090x_activate_modcod(state) < 0)
1344                                goto err;
1345                } else {
1346                        /* Single demodulator
1347                         * Authorize SHORT and LONG frames,
1348                         * QPSK, 8PSK, 16APSK and 32APSK
1349                         */
1350                        if (stv090x_activate_modcod_single(state) < 0)
1351                                goto err;
1352                }
1353
1354                if (stv090x_set_vit_thtracq(state) < 0)
1355                        goto err;
1356                break;
1357
1358        case STV090x_SEARCH_AUTO:
1359        default:
1360                /* enable DVB-S2 and DVB-S2 in Auto MODE */
1361                reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1362                STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
1363                STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1364                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1365                        goto err;
1366                STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1367                STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
1368                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1369                        goto err;
1370
1371                if (stv090x_vitclk_ctl(state, 0) < 0)
1372                        goto err;
1373
1374                if (stv090x_dvbs_track_crl(state) < 0)
1375                        goto err;
1376
1377                if (state->internal->dev_ver <= 0x20) {
1378                        /* enable S2 carrier loop */
1379                        if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x26) < 0)
1380                                goto err;
1381                } else {
1382                        /* > Cut 3: Stop carrier 3 */
1383                        if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x66) < 0)
1384                                goto err;
1385                }
1386
1387                if (state->demod_mode != STV090x_SINGLE) {
1388                        /* Cut 2: enable link during search */
1389                        if (stv090x_activate_modcod(state) < 0)
1390                                goto err;
1391                } else {
1392                        /* Single demodulator
1393                         * Authorize SHORT and LONG frames,
1394                         * QPSK, 8PSK, 16APSK and 32APSK
1395                         */
1396                        if (stv090x_activate_modcod_single(state) < 0)
1397                                goto err;
1398                }
1399
1400                if (stv090x_set_vit_thacq(state) < 0)
1401                        goto err;
1402
1403                if (stv090x_set_viterbi(state) < 0)
1404                        goto err;
1405                break;
1406        }
1407        return 0;
1408err:
1409        dprintk(FE_ERROR, 1, "I/O error");
1410        return -1;
1411}
1412
1413static int stv090x_start_search(struct stv090x_state *state)
1414{
1415        u32 reg, freq_abs;
1416        s16 freq;
1417
1418        /* Reset demodulator */
1419        reg = STV090x_READ_DEMOD(state, DMDISTATE);
1420        STV090x_SETFIELD_Px(reg, I2C_DEMOD_MODE_FIELD, 0x1f);
1421        if (STV090x_WRITE_DEMOD(state, DMDISTATE, reg) < 0)
1422                goto err;
1423
1424        if (state->internal->dev_ver <= 0x20) {
1425                if (state->srate <= 5000000) {
1426                        if (STV090x_WRITE_DEMOD(state, CARCFG, 0x44) < 0)
1427                                goto err;
1428                        if (STV090x_WRITE_DEMOD(state, CFRUP1, 0x0f) < 0)
1429                                goto err;
1430                        if (STV090x_WRITE_DEMOD(state, CFRUP0, 0xff) < 0)
1431                                goto err;
1432                        if (STV090x_WRITE_DEMOD(state, CFRLOW1, 0xf0) < 0)
1433                                goto err;
1434                        if (STV090x_WRITE_DEMOD(state, CFRLOW0, 0x00) < 0)
1435                                goto err;
1436
1437                        /*enlarge the timing bandwidth for Low SR*/
1438                        if (STV090x_WRITE_DEMOD(state, RTCS2, 0x68) < 0)
1439                                goto err;
1440                } else {
1441                        /* If the symbol rate is >5 Msps
1442                        Set The carrier search up and low to auto mode */
1443                        if (STV090x_WRITE_DEMOD(state, CARCFG, 0xc4) < 0)
1444                                goto err;
1445                        /*reduce the timing bandwidth for high SR*/
1446                        if (STV090x_WRITE_DEMOD(state, RTCS2, 0x44) < 0)
1447                                goto err;
1448                }
1449        } else {
1450                /* >= Cut 3 */
1451                if (state->srate <= 5000000) {
1452                        /* enlarge the timing bandwidth for Low SR */
1453                        STV090x_WRITE_DEMOD(state, RTCS2, 0x68);
1454                } else {
1455                        /* reduce timing bandwidth for high SR */
1456                        STV090x_WRITE_DEMOD(state, RTCS2, 0x44);
1457                }
1458
1459                /* Set CFR min and max to manual mode */
1460                STV090x_WRITE_DEMOD(state, CARCFG, 0x46);
1461
1462                if (state->algo == STV090x_WARM_SEARCH) {
1463                        /* WARM Start
1464                         * CFR min = -1MHz,
1465                         * CFR max = +1MHz
1466                         */
1467                        freq_abs  = 1000 << 16;
1468                        freq_abs /= (state->internal->mclk / 1000);
1469                        freq      = (s16) freq_abs;
1470                } else {
1471                        /* COLD Start
1472                         * CFR min =- (SearchRange / 2 + 600KHz)
1473                         * CFR max = +(SearchRange / 2 + 600KHz)
1474                         * (600KHz for the tuner step size)
1475                         */
1476                        freq_abs  = (state->search_range / 2000) + 600;
1477                        freq_abs  = freq_abs << 16;
1478                        freq_abs /= (state->internal->mclk / 1000);
1479                        freq      = (s16) freq_abs;
1480                }
1481
1482                if (STV090x_WRITE_DEMOD(state, CFRUP1, MSB(freq)) < 0)
1483                        goto err;
1484                if (STV090x_WRITE_DEMOD(state, CFRUP0, LSB(freq)) < 0)
1485                        goto err;
1486
1487                freq *= -1;
1488
1489                if (STV090x_WRITE_DEMOD(state, CFRLOW1, MSB(freq)) < 0)
1490                        goto err;
1491                if (STV090x_WRITE_DEMOD(state, CFRLOW0, LSB(freq)) < 0)
1492                        goto err;
1493
1494        }
1495
1496        if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0) < 0)
1497                goto err;
1498        if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0) < 0)
1499                goto err;
1500
1501        if (state->internal->dev_ver >= 0x20) {
1502                if (STV090x_WRITE_DEMOD(state, EQUALCFG, 0x41) < 0)
1503                        goto err;
1504                if (STV090x_WRITE_DEMOD(state, FFECFG, 0x41) < 0)
1505                        goto err;
1506
1507                if ((state->search_mode == STV090x_SEARCH_DVBS1)        ||
1508                        (state->search_mode == STV090x_SEARCH_DSS)      ||
1509                        (state->search_mode == STV090x_SEARCH_AUTO)) {
1510
1511                        if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x82) < 0)
1512                                goto err;
1513                        if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x00) < 0)
1514                                goto err;
1515                }
1516        }
1517
1518        if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x00) < 0)
1519                goto err;
1520        if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0xe0) < 0)
1521                goto err;
1522        if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0xc0) < 0)
1523                goto err;
1524
1525        reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1526        STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0);
1527        STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1528        if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1529                goto err;
1530        reg = STV090x_READ_DEMOD(state, DMDCFG2);
1531        STV090x_SETFIELD_Px(reg, S1S2_SEQUENTIAL_FIELD, 0x0);
1532        if (STV090x_WRITE_DEMOD(state, DMDCFG2, reg) < 0)
1533                goto err;
1534
1535        if (STV090x_WRITE_DEMOD(state, RTC, 0x88) < 0)
1536                goto err;
1537
1538        if (state->internal->dev_ver >= 0x20) {
1539                /*Frequency offset detector setting*/
1540                if (state->srate < 2000000) {
1541                        if (state->internal->dev_ver <= 0x20) {
1542                                /* Cut 2 */
1543                                if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x39) < 0)
1544                                        goto err;
1545                        } else {
1546                                /* Cut 3 */
1547                                if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x89) < 0)
1548                                        goto err;
1549                        }
1550                        if (STV090x_WRITE_DEMOD(state, CARHDR, 0x40) < 0)
1551                                goto err;
1552                } else if (state->srate < 10000000) {
1553                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x4c) < 0)
1554                                goto err;
1555                        if (STV090x_WRITE_DEMOD(state, CARHDR, 0x20) < 0)
1556                                goto err;
1557                } else {
1558                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x4b) < 0)
1559                                goto err;
1560                        if (STV090x_WRITE_DEMOD(state, CARHDR, 0x20) < 0)
1561                                goto err;
1562                }
1563        } else {
1564                if (state->srate < 10000000) {
1565                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xef) < 0)
1566                                goto err;
1567                } else {
1568                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xed) < 0)
1569                                goto err;
1570                }
1571        }
1572
1573        switch (state->algo) {
1574        case STV090x_WARM_SEARCH:
1575                /* The symbol rate and the exact
1576                 * carrier Frequency are known
1577                 */
1578                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
1579                        goto err;
1580                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
1581                        goto err;
1582                break;
1583
1584        case STV090x_COLD_SEARCH:
1585                /* The symbol rate is known */
1586                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
1587                        goto err;
1588                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
1589                        goto err;
1590                break;
1591
1592        default:
1593                break;
1594        }
1595        return 0;
1596err:
1597        dprintk(FE_ERROR, 1, "I/O error");
1598        return -1;
1599}
1600
1601static int stv090x_get_agc2_min_level(struct stv090x_state *state)
1602{
1603        u32 agc2_min = 0xffff, agc2 = 0, freq_init, freq_step, reg;
1604        s32 i, j, steps, dir;
1605
1606        if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
1607                goto err;
1608        reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1609        STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0);
1610        STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1611        if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1612                goto err;
1613
1614        if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x83) < 0) /* SR = 65 Msps Max */
1615                goto err;
1616        if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xc0) < 0)
1617                goto err;
1618        if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x82) < 0) /* SR= 400 ksps Min */
1619                goto err;
1620        if (STV090x_WRITE_DEMOD(state, SFRLOW0, 0xa0) < 0)
1621                goto err;
1622        if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x00) < 0) /* stop acq @ coarse carrier state */
1623                goto err;
1624        if (stv090x_set_srate(state, 1000000) < 0)
1625                goto err;
1626
1627        steps  = state->search_range / 1000000;
1628        if (steps <= 0)
1629                steps = 1;
1630
1631        dir = 1;
1632        freq_step = (1000000 * 256) / (state->internal->mclk / 256);
1633        freq_init = 0;
1634
1635        for (i = 0; i < steps; i++) {
1636                if (dir > 0)
1637                        freq_init = freq_init + (freq_step * i);
1638                else
1639                        freq_init = freq_init - (freq_step * i);
1640
1641                dir *= -1;
1642
1643                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5c) < 0) /* Demod RESET */
1644                        goto err;
1645                if (STV090x_WRITE_DEMOD(state, CFRINIT1, (freq_init >> 8) & 0xff) < 0)
1646                        goto err;
1647                if (STV090x_WRITE_DEMOD(state, CFRINIT0, freq_init & 0xff) < 0)
1648                        goto err;
1649                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x58) < 0) /* Demod RESET */
1650                        goto err;
1651                msleep(10);
1652
1653                agc2 = 0;
1654                for (j = 0; j < 10; j++) {
1655                        agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
1656                                STV090x_READ_DEMOD(state, AGC2I0);
1657                }
1658                agc2 /= 10;
1659                if (agc2 < agc2_min)
1660                        agc2_min = agc2;
1661        }
1662
1663        return agc2_min;
1664err:
1665        dprintk(FE_ERROR, 1, "I/O error");
1666        return -1;
1667}
1668
1669static u32 stv090x_get_srate(struct stv090x_state *state, u32 clk)
1670{
1671        u8 r3, r2, r1, r0;
1672        s32 srate, int_1, int_2, tmp_1, tmp_2;
1673
1674        r3 = STV090x_READ_DEMOD(state, SFR3);
1675        r2 = STV090x_READ_DEMOD(state, SFR2);
1676        r1 = STV090x_READ_DEMOD(state, SFR1);
1677        r0 = STV090x_READ_DEMOD(state, SFR0);
1678
1679        srate = ((r3 << 24) | (r2 << 16) | (r1 <<  8) | r0);
1680
1681        int_1 = clk >> 16;
1682        int_2 = srate >> 16;
1683
1684        tmp_1 = clk % 0x10000;
1685        tmp_2 = srate % 0x10000;
1686
1687        srate = (int_1 * int_2) +
1688                ((int_1 * tmp_2) >> 16) +
1689                ((int_2 * tmp_1) >> 16);
1690
1691        return srate;
1692}
1693
1694static u32 stv090x_srate_srch_coarse(struct stv090x_state *state)
1695{
1696        struct dvb_frontend *fe = &state->frontend;
1697
1698        int tmg_lock = 0, i;
1699        s32 tmg_cpt = 0, dir = 1, steps, cur_step = 0, freq;
1700        u32 srate_coarse = 0, agc2 = 0, car_step = 1200, reg;
1701        u32 agc2th;
1702
1703        if (state->internal->dev_ver >= 0x30)
1704                agc2th = 0x2e00;
1705        else
1706                agc2th = 0x1f00;
1707
1708        reg = STV090x_READ_DEMOD(state, DMDISTATE);
1709        STV090x_SETFIELD_Px(reg, I2C_DEMOD_MODE_FIELD, 0x1f); /* Demod RESET */
1710        if (STV090x_WRITE_DEMOD(state, DMDISTATE, reg) < 0)
1711                goto err;
1712        if (STV090x_WRITE_DEMOD(state, TMGCFG, 0x12) < 0)
1713                goto err;
1714        if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc0) < 0)
1715                goto err;
1716        if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0xf0) < 0)
1717                goto err;
1718        if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0xe0) < 0)
1719                goto err;
1720        reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1721        STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 1);
1722        STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1723        if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1724                goto err;
1725
1726        if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x83) < 0)
1727                goto err;
1728        if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xc0) < 0)
1729                goto err;
1730        if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x82) < 0)
1731                goto err;
1732        if (STV090x_WRITE_DEMOD(state, SFRLOW0, 0xa0) < 0)
1733                goto err;
1734        if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x00) < 0)
1735                goto err;
1736        if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x50) < 0)
1737                goto err;
1738
1739        if (state->internal->dev_ver >= 0x30) {
1740                if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x99) < 0)
1741                        goto err;
1742                if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x98) < 0)
1743                        goto err;
1744
1745        } else if (state->internal->dev_ver >= 0x20) {
1746                if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x6a) < 0)
1747                        goto err;
1748                if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x95) < 0)
1749                        goto err;
1750        }
1751
1752        if (state->srate <= 2000000)
1753                car_step = 1000;
1754        else if (state->srate <= 5000000)
1755                car_step = 2000;
1756        else if (state->srate <= 12000000)
1757                car_step = 3000;
1758        else
1759                car_step = 5000;
1760
1761        steps  = -1 + ((state->search_range / 1000) / car_step);
1762        steps /= 2;
1763        steps  = (2 * steps) + 1;
1764        if (steps < 0)
1765                steps = 1;
1766        else if (steps > 10) {
1767                steps = 11;
1768                car_step = (state->search_range / 1000) / 10;
1769        }
1770        cur_step = 0;
1771        dir = 1;
1772        freq = state->frequency;
1773
1774        while ((!tmg_lock) && (cur_step < steps)) {
1775                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5f) < 0) /* Demod RESET */
1776                        goto err;
1777                if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0)
1778                        goto err;
1779                if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
1780                        goto err;
1781                if (STV090x_WRITE_DEMOD(state, SFRINIT1, 0x00) < 0)
1782                        goto err;
1783                if (STV090x_WRITE_DEMOD(state, SFRINIT0, 0x00) < 0)
1784                        goto err;
1785                /* trigger acquisition */
1786                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x40) < 0)
1787                        goto err;
1788                msleep(50);
1789                for (i = 0; i < 10; i++) {
1790                        reg = STV090x_READ_DEMOD(state, DSTATUS);
1791                        if (STV090x_GETFIELD_Px(reg, TMGLOCK_QUALITY_FIELD) >= 2)
1792                                tmg_cpt++;
1793                        agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
1794                                STV090x_READ_DEMOD(state, AGC2I0);
1795                }
1796                agc2 /= 10;
1797                srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1798                cur_step++;
1799                dir *= -1;
1800                if ((tmg_cpt >= 5) && (agc2 < agc2th) &&
1801                    (srate_coarse < 50000000) && (srate_coarse > 850000))
1802                        tmg_lock = 1;
1803                else if (cur_step < steps) {
1804                        if (dir > 0)
1805                                freq += cur_step * car_step;
1806                        else
1807                                freq -= cur_step * car_step;
1808
1809                        /* Setup tuner */
1810                        if (stv090x_i2c_gate_ctrl(state, 1) < 0)
1811                                goto err;
1812
1813                        if (state->config->tuner_set_frequency) {
1814                                if (state->config->tuner_set_frequency(fe, freq) < 0)
1815                                        goto err_gateoff;
1816                        }
1817
1818                        if (state->config->tuner_set_bandwidth) {
1819                                if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
1820                                        goto err_gateoff;
1821                        }
1822
1823                        if (stv090x_i2c_gate_ctrl(state, 0) < 0)
1824                                goto err;
1825
1826                        msleep(50);
1827
1828                        if (stv090x_i2c_gate_ctrl(state, 1) < 0)
1829                                goto err;
1830
1831                        if (state->config->tuner_get_status) {
1832                                if (state->config->tuner_get_status(fe, &reg) < 0)
1833                                        goto err_gateoff;
1834                        }
1835
1836                        if (reg)
1837                                dprintk(FE_DEBUG, 1, "Tuner phase locked");
1838                        else
1839                                dprintk(FE_DEBUG, 1, "Tuner unlocked");
1840
1841                        if (stv090x_i2c_gate_ctrl(state, 0) < 0)
1842                                goto err;
1843
1844                }
1845        }
1846        if (!tmg_lock)
1847                srate_coarse = 0;
1848        else
1849                srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1850
1851        return srate_coarse;
1852
1853err_gateoff:
1854        stv090x_i2c_gate_ctrl(state, 0);
1855err:
1856        dprintk(FE_ERROR, 1, "I/O error");
1857        return -1;
1858}
1859
1860static u32 stv090x_srate_srch_fine(struct stv090x_state *state)
1861{
1862        u32 srate_coarse, freq_coarse, sym, reg;
1863
1864        srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1865        freq_coarse  = STV090x_READ_DEMOD(state, CFR2) << 8;
1866        freq_coarse |= STV090x_READ_DEMOD(state, CFR1);
1867        sym = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1868
1869        if (sym < state->srate)
1870                srate_coarse = 0;
1871        else {
1872                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0) /* Demod RESET */
1873                        goto err;
1874                if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0)
1875                        goto err;
1876                if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0x20) < 0)
1877                        goto err;
1878                if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0x00) < 0)
1879                        goto err;
1880                if (STV090x_WRITE_DEMOD(state, TMGCFG, 0xd2) < 0)
1881                        goto err;
1882                reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1883                STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00);
1884                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1885                        goto err;
1886
1887                if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
1888                        goto err;
1889
1890                if (state->internal->dev_ver >= 0x30) {
1891                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x79) < 0)
1892                                goto err;
1893                } else if (state->internal->dev_ver >= 0x20) {
1894                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
1895                                goto err;
1896                }
1897
1898                if (srate_coarse > 3000000) {
1899                        sym  = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1900                        sym  = (sym / 1000) * 65536;
1901                        sym /= (state->internal->mclk / 1000);
1902                        if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0)
1903                                goto err;
1904                        if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0)
1905                                goto err;
1906                        sym  = 10 * (srate_coarse / 13); /* SFRLOW = SFR - 30% */
1907                        sym  = (sym / 1000) * 65536;
1908                        sym /= (state->internal->mclk / 1000);
1909                        if (STV090x_WRITE_DEMOD(state, SFRLOW1, (sym >> 8) & 0x7f) < 0)
1910                                goto err;
1911                        if (STV090x_WRITE_DEMOD(state, SFRLOW0, sym & 0xff) < 0)
1912                                goto err;
1913                        sym  = (srate_coarse / 1000) * 65536;
1914                        sym /= (state->internal->mclk / 1000);
1915                        if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0xff) < 0)
1916                                goto err;
1917                        if (STV090x_WRITE_DEMOD(state, SFRINIT0, sym & 0xff) < 0)
1918                                goto err;
1919                } else {
1920                        sym  = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1921                        sym  = (sym / 100) * 65536;
1922                        sym /= (state->internal->mclk / 100);
1923                        if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0)
1924                                goto err;
1925                        if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0)
1926                                goto err;
1927                        sym  = 10 * (srate_coarse / 14); /* SFRLOW = SFR - 30% */
1928                        sym  = (sym / 100) * 65536;
1929                        sym /= (state->internal->mclk / 100);
1930                        if (STV090x_WRITE_DEMOD(state, SFRLOW1, (sym >> 8) & 0x7f) < 0)
1931                                goto err;
1932                        if (STV090x_WRITE_DEMOD(state, SFRLOW0, sym & 0xff) < 0)
1933                                goto err;
1934                        sym  = (srate_coarse / 100) * 65536;
1935                        sym /= (state->internal->mclk / 100);
1936                        if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0xff) < 0)
1937                                goto err;
1938                        if (STV090x_WRITE_DEMOD(state, SFRINIT0, sym & 0xff) < 0)
1939                                goto err;
1940                }
1941                if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x20) < 0)
1942                        goto err;
1943                if (STV090x_WRITE_DEMOD(state, CFRINIT1, (freq_coarse >> 8) & 0xff) < 0)
1944                        goto err;
1945                if (STV090x_WRITE_DEMOD(state, CFRINIT0, freq_coarse & 0xff) < 0)
1946                        goto err;
1947                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0) /* trigger acquisition */
1948                        goto err;
1949        }
1950
1951        return srate_coarse;
1952
1953err:
1954        dprintk(FE_ERROR, 1, "I/O error");
1955        return -1;
1956}
1957
1958static int stv090x_get_dmdlock(struct stv090x_state *state, s32 timeout)
1959{
1960        s32 timer = 0, lock = 0;
1961        u32 reg;
1962        u8 stat;
1963
1964        while ((timer < timeout) && (!lock)) {
1965                reg = STV090x_READ_DEMOD(state, DMDSTATE);
1966                stat = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
1967
1968                switch (stat) {
1969                case 0: /* searching */
1970                case 1: /* first PLH detected */
1971                default:
1972                        dprintk(FE_DEBUG, 1, "Demodulator searching ..");
1973                        lock = 0;
1974                        break;
1975                case 2: /* DVB-S2 mode */
1976                case 3: /* DVB-S1/legacy mode */
1977                        reg = STV090x_READ_DEMOD(state, DSTATUS);
1978                        lock = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
1979                        break;
1980                }
1981
1982                if (!lock)
1983                        msleep(10);
1984                else
1985                        dprintk(FE_DEBUG, 1, "Demodulator acquired LOCK");
1986
1987                timer += 10;
1988        }
1989        return lock;
1990}
1991
1992static int stv090x_blind_search(struct stv090x_state *state)
1993{
1994        u32 agc2, reg, srate_coarse;
1995        s32 cpt_fail, agc2_ovflw, i;
1996        u8 k_ref, k_max, k_min;
1997        int coarse_fail = 0;
1998        int lock;
1999
2000        k_max = 110;
2001        k_min = 10;
2002
2003        agc2 = stv090x_get_agc2_min_level(state);
2004
2005        if (agc2 > STV090x_SEARCH_AGC2_TH(state->internal->dev_ver)) {
2006                lock = 0;
2007        } else {
2008
2009                if (state->internal->dev_ver <= 0x20) {
2010                        if (STV090x_WRITE_DEMOD(state, CARCFG, 0xc4) < 0)
2011                                goto err;
2012                } else {
2013                        /* > Cut 3 */
2014                        if (STV090x_WRITE_DEMOD(state, CARCFG, 0x06) < 0)
2015                                goto err;
2016                }
2017
2018                if (STV090x_WRITE_DEMOD(state, RTCS2, 0x44) < 0)
2019                        goto err;
2020
2021                if (state->internal->dev_ver >= 0x20) {
2022                        if (STV090x_WRITE_DEMOD(state, EQUALCFG, 0x41) < 0)
2023                                goto err;
2024                        if (STV090x_WRITE_DEMOD(state, FFECFG, 0x41) < 0)
2025                                goto err;
2026                        if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x82) < 0)
2027                                goto err;
2028                        if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x00) < 0) /* set viterbi hysteresis */
2029                                goto err;
2030                }
2031
2032                k_ref = k_max;
2033                do {
2034                        if (STV090x_WRITE_DEMOD(state, KREFTMG, k_ref) < 0)
2035                                goto err;
2036                        if (stv090x_srate_srch_coarse(state) != 0) {
2037                                srate_coarse = stv090x_srate_srch_fine(state);
2038                                if (srate_coarse != 0) {
2039                                        stv090x_get_lock_tmg(state);
2040                                        lock = stv090x_get_dmdlock(state,
2041                                                        state->DemodTimeout);
2042                                } else {
2043                                        lock = 0;
2044                                }
2045                        } else {
2046                                cpt_fail = 0;
2047                                agc2_ovflw = 0;
2048                                for (i = 0; i < 10; i++) {
2049                                        agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
2050                                                STV090x_READ_DEMOD(state, AGC2I0);
2051                                        if (agc2 >= 0xff00)
2052                                                agc2_ovflw++;
2053                                        reg = STV090x_READ_DEMOD(state, DSTATUS2);
2054                                        if ((STV090x_GETFIELD_Px(reg, CFR_OVERFLOW_FIELD) == 0x01) &&
2055                                            (STV090x_GETFIELD_Px(reg, DEMOD_DELOCK_FIELD) == 0x01))
2056
2057                                                cpt_fail++;
2058                                }
2059                                if ((cpt_fail > 7) || (agc2_ovflw > 7))
2060                                        coarse_fail = 1;
2061
2062                                lock = 0;
2063                        }
2064                        k_ref -= 20;
2065                } while ((k_ref >= k_min) && (!lock) && (!coarse_fail));
2066        }
2067
2068        return lock;
2069
2070err:
2071        dprintk(FE_ERROR, 1, "I/O error");
2072        return -1;
2073}
2074
2075static int stv090x_chk_tmg(struct stv090x_state *state)
2076{
2077        u32 reg;
2078        s32 tmg_cpt = 0, i;
2079        u8 freq, tmg_thh, tmg_thl;
2080        int tmg_lock = 0;
2081
2082        freq = STV090x_READ_DEMOD(state, CARFREQ);
2083        tmg_thh = STV090x_READ_DEMOD(state, TMGTHRISE);
2084        tmg_thl = STV090x_READ_DEMOD(state, TMGTHFALL);
2085        if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0x20) < 0)
2086                goto err;
2087        if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0x00) < 0)
2088                goto err;
2089
2090        reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2091        STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00); /* stop carrier offset search */
2092        if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2093                goto err;
2094        if (STV090x_WRITE_DEMOD(state, RTC, 0x80) < 0)
2095                goto err;
2096
2097        if (STV090x_WRITE_DEMOD(state, RTCS2, 0x40) < 0)
2098                goto err;
2099        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x00) < 0)
2100                goto err;
2101
2102        if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0) /* set car ofset to 0 */
2103                goto err;
2104        if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
2105                goto err;
2106        if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x65) < 0)
2107                goto err;
2108
2109        if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0) /* trigger acquisition */
2110                goto err;
2111        msleep(10);
2112
2113        for (i = 0; i < 10; i++) {
2114                reg = STV090x_READ_DEMOD(state, DSTATUS);
2115                if (STV090x_GETFIELD_Px(reg, TMGLOCK_QUALITY_FIELD) >= 2)
2116                        tmg_cpt++;
2117                msleep(1);
2118        }
2119        if (tmg_cpt >= 3)
2120                tmg_lock = 1;
2121
2122        if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
2123                goto err;
2124        if (STV090x_WRITE_DEMOD(state, RTC, 0x88) < 0) /* DVB-S1 timing */
2125                goto err;
2126        if (STV090x_WRITE_DEMOD(state, RTCS2, 0x68) < 0) /* DVB-S2 timing */
2127                goto err;
2128
2129        if (STV090x_WRITE_DEMOD(state, CARFREQ, freq) < 0)
2130                goto err;
2131        if (STV090x_WRITE_DEMOD(state, TMGTHRISE, tmg_thh) < 0)
2132                goto err;
2133        if (STV090x_WRITE_DEMOD(state, TMGTHFALL, tmg_thl) < 0)
2134                goto err;
2135
2136        return  tmg_lock;
2137
2138err:
2139        dprintk(FE_ERROR, 1, "I/O error");
2140        return -1;
2141}
2142
2143static int stv090x_get_coldlock(struct stv090x_state *state, s32 timeout_dmd)
2144{
2145        struct dvb_frontend *fe = &state->frontend;
2146
2147        u32 reg;
2148        s32 car_step, steps, cur_step, dir, freq, timeout_lock;
2149        int lock;
2150
2151        if (state->srate >= 10000000)
2152                timeout_lock = timeout_dmd / 3;
2153        else
2154                timeout_lock = timeout_dmd / 2;
2155
2156        lock = stv090x_get_dmdlock(state, timeout_lock); /* cold start wait */
2157        if (lock)
2158                return lock;
2159
2160        if (state->srate >= 10000000) {
2161                if (stv090x_chk_tmg(state)) {
2162                        if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
2163                                goto err;
2164                        if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
2165                                goto err;
2166                        return stv090x_get_dmdlock(state, timeout_dmd);
2167                }
2168                return 0;
2169        }
2170
2171        if (state->srate <= 4000000)
2172                car_step = 1000;
2173        else if (state->srate <= 7000000)
2174                car_step = 2000;
2175        else if (state->srate <= 10000000)
2176                car_step = 3000;
2177        else
2178                car_step = 5000;
2179
2180        steps  = (state->search_range / 1000) / car_step;
2181        steps /= 2;
2182        steps  = 2 * (steps + 1);
2183        if (steps < 0)
2184                steps = 2;
2185        else if (steps > 12)
2186                steps = 12;
2187
2188        cur_step = 1;
2189        dir = 1;
2190
2191        freq = state->frequency;
2192        state->tuner_bw = stv090x_car_width(state->srate, state->rolloff) + state->srate;
2193        while ((cur_step <= steps) && (!lock)) {
2194                if (dir > 0)
2195                        freq += cur_step * car_step;
2196                else
2197                        freq -= cur_step * car_step;
2198
2199                /* Setup tuner */
2200                if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2201                        goto err;
2202
2203                if (state->config->tuner_set_frequency) {
2204                        if (state->config->tuner_set_frequency(fe, freq) < 0)
2205                                goto err_gateoff;
2206                }
2207
2208                if (state->config->tuner_set_bandwidth) {
2209                        if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
2210                                goto err_gateoff;
2211                }
2212
2213                if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2214                        goto err;
2215
2216                msleep(50);
2217
2218                if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2219                        goto err;
2220
2221                if (state->config->tuner_get_status) {
2222                        if (state->config->tuner_get_status(fe, &reg) < 0)
2223                                goto err_gateoff;
2224                }
2225
2226                if (reg)
2227                        dprintk(FE_DEBUG, 1, "Tuner phase locked");
2228                else
2229                        dprintk(FE_DEBUG, 1, "Tuner unlocked");
2230
2231                if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2232                        goto err;
2233
2234                STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c);
2235                if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0)
2236                        goto err;
2237                if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
2238                        goto err;
2239                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
2240                        goto err;
2241                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
2242                        goto err;
2243                lock = stv090x_get_dmdlock(state, (timeout_dmd / 3));
2244
2245                dir *= -1;
2246                cur_step++;
2247        }
2248
2249        return lock;
2250
2251err_gateoff:
2252        stv090x_i2c_gate_ctrl(state, 0);
2253err:
2254        dprintk(FE_ERROR, 1, "I/O error");
2255        return -1;
2256}
2257
2258static int stv090x_get_loop_params(struct stv090x_state *state, s32 *freq_inc, s32 *timeout_sw, s32 *steps)
2259{
2260        s32 timeout, inc, steps_max, srate, car_max;
2261
2262        srate = state->srate;
2263        car_max = state->search_range / 1000;
2264        car_max += car_max / 10;
2265        car_max  = 65536 * (car_max / 2);
2266        car_max /= (state->internal->mclk / 1000);
2267
2268        if (car_max > 0x4000)
2269                car_max = 0x4000 ; /* maxcarrier should be<= +-1/4 Mclk */
2270
2271        inc  = srate;
2272        inc /= state->internal->mclk / 1000;
2273        inc *= 256;
2274        inc *= 256;
2275        inc /= 1000;
2276
2277        switch (state->search_mode) {
2278        case STV090x_SEARCH_DVBS1:
2279        case STV090x_SEARCH_DSS:
2280                inc *= 3; /* freq step = 3% of srate */
2281                timeout = 20;
2282                break;
2283
2284        case STV090x_SEARCH_DVBS2:
2285                inc *= 4;
2286                timeout = 25;
2287                break;
2288
2289        case STV090x_SEARCH_AUTO:
2290        default:
2291                inc *= 3;
2292                timeout = 25;
2293                break;
2294        }
2295        inc /= 100;
2296        if ((inc > car_max) || (inc < 0))
2297                inc = car_max / 2; /* increment <= 1/8 Mclk */
2298
2299        timeout *= 27500; /* 27.5 Msps reference */
2300        if (srate > 0)
2301                timeout /= (srate / 1000);
2302
2303        if ((timeout > 100) || (timeout < 0))
2304                timeout = 100;
2305
2306        steps_max = (car_max / inc) + 1; /* min steps = 3 */
2307        if ((steps_max > 100) || (steps_max < 0)) {
2308                steps_max = 100; /* max steps <= 100 */
2309                inc = car_max / steps_max;
2310        }
2311        *freq_inc = inc;
2312        *timeout_sw = timeout;
2313        *steps = steps_max;
2314
2315        return 0;
2316}
2317
2318static int stv090x_chk_signal(struct stv090x_state *state)
2319{
2320        s32 offst_car, agc2, car_max;
2321        int no_signal;
2322
2323        offst_car  = STV090x_READ_DEMOD(state, CFR2) << 8;
2324        offst_car |= STV090x_READ_DEMOD(state, CFR1);
2325        offst_car = comp2(offst_car, 16);
2326
2327        agc2  = STV090x_READ_DEMOD(state, AGC2I1) << 8;
2328        agc2 |= STV090x_READ_DEMOD(state, AGC2I0);
2329        car_max = state->search_range / 1000;
2330
2331        car_max += (car_max / 10); /* 10% margin */
2332        car_max  = (65536 * car_max / 2);
2333        car_max /= state->internal->mclk / 1000;
2334
2335        if (car_max > 0x4000)
2336                car_max = 0x4000;
2337
2338        if ((agc2 > 0x2000) || (offst_car > 2 * car_max) || (offst_car < -2 * car_max)) {
2339                no_signal = 1;
2340                dprintk(FE_DEBUG, 1, "No Signal");
2341        } else {
2342                no_signal = 0;
2343                dprintk(FE_DEBUG, 1, "Found Signal");
2344        }
2345
2346        return no_signal;
2347}
2348
2349static int stv090x_search_car_loop(struct stv090x_state *state, s32 inc, s32 timeout, int zigzag, s32 steps_max)
2350{
2351        int no_signal, lock = 0;
2352        s32 cpt_step = 0, offst_freq, car_max;
2353        u32 reg;
2354
2355        car_max  = state->search_range / 1000;
2356        car_max += (car_max / 10);
2357        car_max  = (65536 * car_max / 2);
2358        car_max /= (state->internal->mclk / 1000);
2359        if (car_max > 0x4000)
2360                car_max = 0x4000;
2361
2362        if (zigzag)
2363                offst_freq = 0;
2364        else
2365                offst_freq = -car_max + inc;
2366
2367        do {
2368                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c) < 0)
2369                        goto err;
2370                if (STV090x_WRITE_DEMOD(state, CFRINIT1, ((offst_freq / 256) & 0xff)) < 0)
2371                        goto err;
2372                if (STV090x_WRITE_DEMOD(state, CFRINIT0, offst_freq & 0xff) < 0)
2373                        goto err;
2374                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
2375                        goto err;
2376
2377                reg = STV090x_READ_DEMOD(state, PDELCTRL1);
2378                STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x1); /* stop DVB-S2 packet delin */
2379                if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
2380                        goto err;
2381
2382                if (zigzag) {
2383                        if (offst_freq >= 0)
2384                                offst_freq = -offst_freq - 2 * inc;
2385                        else
2386                                offst_freq = -offst_freq;
2387                } else {
2388                        offst_freq += 2 * inc;
2389                }
2390
2391                cpt_step++;
2392
2393                lock = stv090x_get_dmdlock(state, timeout);
2394                no_signal = stv090x_chk_signal(state);
2395
2396        } while ((!lock) &&
2397                 (!no_signal) &&
2398                  ((offst_freq - inc) < car_max) &&
2399                  ((offst_freq + inc) > -car_max) &&
2400                  (cpt_step < steps_max));
2401
2402        reg = STV090x_READ_DEMOD(state, PDELCTRL1);
2403        STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0);
2404        if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
2405                        goto err;
2406
2407        return lock;
2408err:
2409        dprintk(FE_ERROR, 1, "I/O error");
2410        return -1;
2411}
2412
2413static int stv090x_sw_algo(struct stv090x_state *state)
2414{
2415        int no_signal, zigzag, lock = 0;
2416        u32 reg;
2417
2418        s32 dvbs2_fly_wheel;
2419        s32 inc, timeout_step, trials, steps_max;
2420
2421        /* get params */
2422        stv090x_get_loop_params(state, &inc, &timeout_step, &steps_max);
2423
2424        switch (state->search_mode) {
2425        case STV090x_SEARCH_DVBS1:
2426        case STV090x_SEARCH_DSS:
2427                /* accelerate the frequency detector */
2428                if (state->internal->dev_ver >= 0x20) {
2429                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x3B) < 0)
2430                                goto err;
2431                }
2432
2433                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x49) < 0)
2434                        goto err;
2435                zigzag = 0;
2436                break;
2437
2438        case STV090x_SEARCH_DVBS2:
2439                if (state->internal->dev_ver >= 0x20) {
2440                        if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2441                                goto err;
2442                }
2443
2444                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x89) < 0)
2445                        goto err;
2446                zigzag = 1;
2447                break;
2448
2449        case STV090x_SEARCH_AUTO:
2450        default:
2451                /* accelerate the frequency detector */
2452                if (state->internal->dev_ver >= 0x20) {
2453                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x3b) < 0)
2454                                goto err;
2455                        if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2456                                goto err;
2457                }
2458
2459                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0xc9) < 0)
2460                        goto err;
2461                zigzag = 0;
2462                break;
2463        }
2464
2465        trials = 0;
2466        do {
2467                lock = stv090x_search_car_loop(state, inc, timeout_step, zigzag, steps_max);
2468                no_signal = stv090x_chk_signal(state);
2469                trials++;
2470
2471                /*run the SW search 2 times maximum*/
2472                if (lock || no_signal || (trials == 2)) {
2473                        /*Check if the demod is not losing lock in DVBS2*/
2474                        if (state->internal->dev_ver >= 0x20) {
2475                                if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
2476                                        goto err;
2477                                if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x9e) < 0)
2478                                        goto err;
2479                        }
2480
2481                        reg = STV090x_READ_DEMOD(state, DMDSTATE);
2482                        if ((lock) && (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == STV090x_DVBS2)) {
2483                                /*Check if the demod is not losing lock in DVBS2*/
2484                                msleep(timeout_step);
2485                                reg = STV090x_READ_DEMOD(state, DMDFLYW);
2486                                dvbs2_fly_wheel = STV090x_GETFIELD_Px(reg, FLYWHEEL_CPT_FIELD);
2487                                if (dvbs2_fly_wheel < 0xd) {     /*if correct frames is decrementing */
2488                                        msleep(timeout_step);
2489                                        reg = STV090x_READ_DEMOD(state, DMDFLYW);
2490                                        dvbs2_fly_wheel = STV090x_GETFIELD_Px(reg, FLYWHEEL_CPT_FIELD);
2491                                }
2492                                if (dvbs2_fly_wheel < 0xd) {
2493                                        /*FALSE lock, The demod is losing lock */
2494                                        lock = 0;
2495                                        if (trials < 2) {
2496                                                if (state->internal->dev_ver >= 0x20) {
2497                                                        if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2498                                                                goto err;
2499                                                }
2500
2501                                                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x89) < 0)
2502                                                        goto err;
2503                                        }
2504                                }
2505                        }
2506                }
2507        } while ((!lock) && (trials < 2) && (!no_signal));
2508
2509        return lock;
2510err:
2511        dprintk(FE_ERROR, 1, "I/O error");
2512        return -1;
2513}
2514
2515static enum stv090x_delsys stv090x_get_std(struct stv090x_state *state)
2516{
2517        u32 reg;
2518        enum stv090x_delsys delsys;
2519
2520        reg = STV090x_READ_DEMOD(state, DMDSTATE);
2521        if (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == 2)
2522                delsys = STV090x_DVBS2;
2523        else if (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == 3) {
2524                reg = STV090x_READ_DEMOD(state, FECM);
2525                if (STV090x_GETFIELD_Px(reg, DSS_DVB_FIELD) == 1)
2526                        delsys = STV090x_DSS;
2527                else
2528                        delsys = STV090x_DVBS1;
2529        } else {
2530                delsys = STV090x_ERROR;
2531        }
2532
2533        return delsys;
2534}
2535
2536/* in Hz */
2537static s32 stv090x_get_car_freq(struct stv090x_state *state, u32 mclk)
2538{
2539        s32 derot, int_1, int_2, tmp_1, tmp_2;
2540
2541        derot  = STV090x_READ_DEMOD(state, CFR2) << 16;
2542        derot |= STV090x_READ_DEMOD(state, CFR1) <<  8;
2543        derot |= STV090x_READ_DEMOD(state, CFR0);
2544
2545        derot = comp2(derot, 24);
2546        int_1 = mclk >> 12;
2547        int_2 = derot >> 12;
2548
2549        /* carrier_frequency = MasterClock * Reg / 2^24 */
2550        tmp_1 = mclk % 0x1000;
2551        tmp_2 = derot % 0x1000;
2552
2553        derot = (int_1 * int_2) +
2554                ((int_1 * tmp_2) >> 12) +
2555                ((int_2 * tmp_1) >> 12);
2556
2557        return derot;
2558}
2559
2560static int stv090x_get_viterbi(struct stv090x_state *state)
2561{
2562        u32 reg, rate;
2563
2564        reg = STV090x_READ_DEMOD(state, VITCURPUN);
2565        rate = STV090x_GETFIELD_Px(reg, VIT_CURPUN_FIELD);
2566
2567        switch (rate) {
2568        case 13:
2569                state->fec = STV090x_PR12;
2570                break;
2571
2572        case 18:
2573                state->fec = STV090x_PR23;
2574                break;
2575
2576        case 21:
2577                state->fec = STV090x_PR34;
2578                break;
2579
2580        case 24:
2581                state->fec = STV090x_PR56;
2582                break;
2583
2584        case 25:
2585                state->fec = STV090x_PR67;
2586                break;
2587
2588        case 26:
2589                state->fec = STV090x_PR78;
2590                break;
2591
2592        default:
2593                state->fec = STV090x_PRERR;
2594                break;
2595        }
2596
2597        return 0;
2598}
2599
2600static enum stv090x_signal_state stv090x_get_sig_params(struct stv090x_state *state)
2601{
2602        struct dvb_frontend *fe = &state->frontend;
2603
2604        u8 tmg;
2605        u32 reg;
2606        s32 i = 0, offst_freq;
2607
2608        msleep(5);
2609
2610        if (state->algo == STV090x_BLIND_SEARCH) {
2611                tmg = STV090x_READ_DEMOD(state, TMGREG2);
2612                STV090x_WRITE_DEMOD(state, SFRSTEP, 0x5c);
2613                while ((i <= 50) && (tmg != 0) && (tmg != 0xff)) {
2614                        tmg = STV090x_READ_DEMOD(state, TMGREG2);
2615                        msleep(5);
2616                        i += 5;
2617                }
2618        }
2619        state->delsys = stv090x_get_std(state);
2620
2621        if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2622                goto err;
2623
2624        if (state->config->tuner_get_frequency) {
2625                if (state->config->tuner_get_frequency(fe, &state->frequency) < 0)
2626                        goto err_gateoff;
2627        }
2628
2629        if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2630                goto err;
2631
2632        offst_freq = stv090x_get_car_freq(state, state->internal->mclk) / 1000;
2633        state->frequency += offst_freq;
2634
2635        if (stv090x_get_viterbi(state) < 0)
2636                goto err;
2637
2638        reg = STV090x_READ_DEMOD(state, DMDMODCOD);
2639        state->modcod = STV090x_GETFIELD_Px(reg, DEMOD_MODCOD_FIELD);
2640        state->pilots = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) & 0x01;
2641        state->frame_len = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) >> 1;
2642        reg = STV090x_READ_DEMOD(state, TMGOBS);
2643        state->rolloff = STV090x_GETFIELD_Px(reg, ROLLOFF_STATUS_FIELD);
2644        reg = STV090x_READ_DEMOD(state, FECM);
2645        state->inversion = STV090x_GETFIELD_Px(reg, IQINV_FIELD);
2646
2647        if ((state->algo == STV090x_BLIND_SEARCH) || (state->srate < 10000000)) {
2648
2649                if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2650                        goto err;
2651
2652                if (state->config->tuner_get_frequency) {
2653                        if (state->config->tuner_get_frequency(fe, &state->frequency) < 0)
2654                                goto err_gateoff;
2655                }
2656
2657                if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2658                        goto err;
2659
2660                if (abs(offst_freq) <= ((state->search_range / 2000) + 500))
2661                        return STV090x_RANGEOK;
2662                else if (abs(offst_freq) <= (stv090x_car_width(state->srate, state->rolloff) / 2000))
2663                        return STV090x_RANGEOK;
2664        } else {
2665                if (abs(offst_freq) <= ((state->search_range / 2000) + 500))
2666                        return STV090x_RANGEOK;
2667        }
2668
2669        return STV090x_OUTOFRANGE;
2670
2671err_gateoff:
2672        stv090x_i2c_gate_ctrl(state, 0);
2673err:
2674        dprintk(FE_ERROR, 1, "I/O error");
2675        return -1;
2676}
2677
2678static u32 stv090x_get_tmgoffst(struct stv090x_state *state, u32 srate)
2679{
2680        s32 offst_tmg;
2681
2682        offst_tmg  = STV090x_READ_DEMOD(state, TMGREG2) << 16;
2683        offst_tmg |= STV090x_READ_DEMOD(state, TMGREG1) <<  8;
2684        offst_tmg |= STV090x_READ_DEMOD(state, TMGREG0);
2685
2686        offst_tmg = comp2(offst_tmg, 24); /* 2's complement */
2687        if (!offst_tmg)
2688                offst_tmg = 1;
2689
2690        offst_tmg  = ((s32) srate * 10) / ((s32) 0x1000000 / offst_tmg);
2691        offst_tmg /= 320;
2692
2693        return offst_tmg;
2694}
2695
2696static u8 stv090x_optimize_carloop(struct stv090x_state *state, enum stv090x_modcod modcod, s32 pilots)
2697{
2698        u8 aclc = 0x29;
2699        s32 i;
2700        struct stv090x_long_frame_crloop *car_loop, *car_loop_qpsk_low, *car_loop_apsk_low;
2701
2702        if (state->internal->dev_ver == 0x20) {
2703                car_loop                = stv090x_s2_crl_cut20;
2704                car_loop_qpsk_low       = stv090x_s2_lowqpsk_crl_cut20;
2705                car_loop_apsk_low       = stv090x_s2_apsk_crl_cut20;
2706        } else {
2707                /* >= Cut 3 */
2708                car_loop                = stv090x_s2_crl_cut30;
2709                car_loop_qpsk_low       = stv090x_s2_lowqpsk_crl_cut30;
2710                car_loop_apsk_low       = stv090x_s2_apsk_crl_cut30;
2711        }
2712
2713        if (modcod < STV090x_QPSK_12) {
2714                i = 0;
2715                while ((i < 3) && (modcod != car_loop_qpsk_low[i].modcod))
2716                        i++;
2717
2718                if (i >= 3)
2719                        i = 2;
2720
2721        } else {
2722                i = 0;
2723                while ((i < 14) && (modcod != car_loop[i].modcod))
2724                        i++;
2725
2726                if (i >= 14) {
2727                        i = 0;
2728                        while ((i < 11) && (modcod != car_loop_apsk_low[i].modcod))
2729                                i++;
2730
2731                        if (i >= 11)
2732                                i = 10;
2733                }
2734        }
2735
2736        if (modcod <= STV090x_QPSK_25) {
2737                if (pilots) {
2738                        if (state->srate <= 3000000)
2739                                aclc = car_loop_qpsk_low[i].crl_pilots_on_2;
2740                        else if (state->srate <= 7000000)
2741                                aclc = car_loop_qpsk_low[i].crl_pilots_on_5;
2742                        else if (state->srate <= 15000000)
2743                                aclc = car_loop_qpsk_low[i].crl_pilots_on_10;
2744                        else if (state->srate <= 25000000)
2745                                aclc = car_loop_qpsk_low[i].crl_pilots_on_20;
2746                        else
2747                                aclc = car_loop_qpsk_low[i].crl_pilots_on_30;
2748                } else {
2749                        if (state->srate <= 3000000)
2750                                aclc = car_loop_qpsk_low[i].crl_pilots_off_2;
2751                        else if (state->srate <= 7000000)
2752                                aclc = car_loop_qpsk_low[i].crl_pilots_off_5;
2753                        else if (state->srate <= 15000000)
2754                                aclc = car_loop_qpsk_low[i].crl_pilots_off_10;
2755                        else if (state->srate <= 25000000)
2756                                aclc = car_loop_qpsk_low[i].crl_pilots_off_20;
2757                        else
2758                                aclc = car_loop_qpsk_low[i].crl_pilots_off_30;
2759                }
2760
2761        } else if (modcod <= STV090x_8PSK_910) {
2762                if (pilots) {
2763                        if (state->srate <= 3000000)
2764                                aclc = car_loop[i].crl_pilots_on_2;
2765                        else if (state->srate <= 7000000)
2766                                aclc = car_loop[i].crl_pilots_on_5;
2767                        else if (state->srate <= 15000000)
2768                                aclc = car_loop[i].crl_pilots_on_10;
2769                        else if (state->srate <= 25000000)
2770                                aclc = car_loop[i].crl_pilots_on_20;
2771                        else
2772                                aclc = car_loop[i].crl_pilots_on_30;
2773                } else {
2774                        if (state->srate <= 3000000)
2775                                aclc = car_loop[i].crl_pilots_off_2;
2776                        else if (state->srate <= 7000000)
2777                                aclc = car_loop[i].crl_pilots_off_5;
2778                        else if (state->srate <= 15000000)
2779                                aclc = car_loop[i].crl_pilots_off_10;
2780                        else if (state->srate <= 25000000)
2781                                aclc = car_loop[i].crl_pilots_off_20;
2782                        else
2783                                aclc = car_loop[i].crl_pilots_off_30;
2784                }
2785        } else { /* 16APSK and 32APSK */
2786                /*
2787                 * This should never happen in practice, except if
2788                 * something is really wrong at the car_loop table.
2789                 */
2790                if (i >= 11)
2791                        i = 10;
2792                if (state->srate <= 3000000)
2793                        aclc = car_loop_apsk_low[i].crl_pilots_on_2;
2794                else if (state->srate <= 7000000)
2795                        aclc = car_loop_apsk_low[i].crl_pilots_on_5;
2796                else if (state->srate <= 15000000)
2797                        aclc = car_loop_apsk_low[i].crl_pilots_on_10;
2798                else if (state->srate <= 25000000)
2799                        aclc = car_loop_apsk_low[i].crl_pilots_on_20;
2800                else
2801                        aclc = car_loop_apsk_low[i].crl_pilots_on_30;
2802        }
2803
2804        return aclc;
2805}
2806
2807static u8 stv090x_optimize_carloop_short(struct stv090x_state *state)
2808{
2809        struct stv090x_short_frame_crloop *short_crl = NULL;
2810        s32 index = 0;
2811        u8 aclc = 0x0b;
2812
2813        switch (state->modulation) {
2814        case STV090x_QPSK:
2815        default:
2816                index = 0;
2817                break;
2818        case STV090x_8PSK:
2819                index = 1;
2820                break;
2821        case STV090x_16APSK:
2822                index = 2;
2823                break;
2824        case STV090x_32APSK:
2825                index = 3;
2826                break;
2827        }
2828
2829        if (state->internal->dev_ver >= 0x30) {
2830                /* Cut 3.0 and up */
2831                short_crl = stv090x_s2_short_crl_cut30;
2832        } else {
2833                /* Cut 2.0 and up: we don't support cuts older than 2.0 */
2834                short_crl = stv090x_s2_short_crl_cut20;
2835        }
2836
2837        if (state->srate <= 3000000)
2838                aclc = short_crl[index].crl_2;
2839        else if (state->srate <= 7000000)
2840                aclc = short_crl[index].crl_5;
2841        else if (state->srate <= 15000000)
2842                aclc = short_crl[index].crl_10;
2843        else if (state->srate <= 25000000)
2844                aclc = short_crl[index].crl_20;
2845        else
2846                aclc = short_crl[index].crl_30;
2847
2848        return aclc;
2849}
2850
2851static int stv090x_optimize_track(struct stv090x_state *state)
2852{
2853        struct dvb_frontend *fe = &state->frontend;
2854
2855        enum stv090x_modcod modcod;
2856
2857        s32 srate, pilots, aclc, f_1, f_0, i = 0, blind_tune = 0;
2858        u32 reg;
2859
2860        srate  = stv090x_get_srate(state, state->internal->mclk);
2861        srate += stv090x_get_tmgoffst(state, srate);
2862
2863        switch (state->delsys) {
2864        case STV090x_DVBS1:
2865        case STV090x_DSS:
2866                if (state->search_mode == STV090x_SEARCH_AUTO) {
2867                        reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2868                        STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
2869                        STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
2870                        if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2871                                goto err;
2872                }
2873                reg = STV090x_READ_DEMOD(state, DEMOD);
2874                STV090x_SETFIELD_Px(reg, ROLLOFF_CONTROL_FIELD, state->rolloff);
2875                STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 0x01);
2876                if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
2877                        goto err;
2878
2879                if (state->internal->dev_ver >= 0x30) {
2880                        if (stv090x_get_viterbi(state) < 0)
2881                                goto err;
2882
2883                        if (state->fec == STV090x_PR12) {
2884                                if (STV090x_WRITE_DEMOD(state, GAUSSR0, 0x98) < 0)
2885                                        goto err;
2886                                if (STV090x_WRITE_DEMOD(state, CCIR0, 0x18) < 0)
2887                                        goto err;
2888                        } else {
2889                                if (STV090x_WRITE_DEMOD(state, GAUSSR0, 0x18) < 0)
2890                                        goto err;
2891                                if (STV090x_WRITE_DEMOD(state, CCIR0, 0x18) < 0)
2892                                        goto err;
2893                        }
2894                }
2895
2896                if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x75) < 0)
2897                        goto err;
2898                break;
2899
2900        case STV090x_DVBS2:
2901                reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2902                STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
2903                STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
2904                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2905                        goto err;
2906                if (state->internal->dev_ver >= 0x30) {
2907                        if (STV090x_WRITE_DEMOD(state, ACLC, 0) < 0)
2908                                goto err;
2909                        if (STV090x_WRITE_DEMOD(state, BCLC, 0) < 0)
2910                                goto err;
2911                }
2912                if (state->frame_len == STV090x_LONG_FRAME) {
2913                        reg = STV090x_READ_DEMOD(state, DMDMODCOD);
2914                        modcod = STV090x_GETFIELD_Px(reg, DEMOD_MODCOD_FIELD);
2915                        pilots = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) & 0x01;
2916                        aclc = stv090x_optimize_carloop(state, modcod, pilots);
2917                        if (modcod <= STV090x_QPSK_910) {
2918                                STV090x_WRITE_DEMOD(state, ACLC2S2Q, aclc);
2919                        } else if (modcod <= STV090x_8PSK_910) {
2920                                if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2921                                        goto err;
2922                                if (STV090x_WRITE_DEMOD(state, ACLC2S28, aclc) < 0)
2923                                        goto err;
2924                        }
2925                        if ((state->demod_mode == STV090x_SINGLE) && (modcod > STV090x_8PSK_910)) {
2926                                if (modcod <= STV090x_16APSK_910) {
2927                                        if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2928                                                goto err;
2929                                        if (STV090x_WRITE_DEMOD(state, ACLC2S216A, aclc) < 0)
2930                                                goto err;
2931                                } else {
2932                                        if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2933                                                goto err;
2934                                        if (STV090x_WRITE_DEMOD(state, ACLC2S232A, aclc) < 0)
2935                                                goto err;
2936                                }
2937                        }
2938                } else {
2939                        /*Carrier loop setting for short frame*/
2940                        aclc = stv090x_optimize_carloop_short(state);
2941                        if (state->modulation == STV090x_QPSK) {
2942                                if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, aclc) < 0)
2943                                        goto err;
2944                        } else if (state->modulation == STV090x_8PSK) {
2945                                if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2946                                        goto err;
2947                                if (STV090x_WRITE_DEMOD(state, ACLC2S28, aclc) < 0)
2948                                        goto err;
2949                        } else if (state->modulation == STV090x_16APSK) {
2950                                if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2951                                        goto err;
2952                                if (STV090x_WRITE_DEMOD(state, ACLC2S216A, aclc) < 0)
2953                                        goto err;
2954                        } else if (state->modulation == STV090x_32APSK)  {
2955                                if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2956                                        goto err;
2957                                if (STV090x_WRITE_DEMOD(state, ACLC2S232A, aclc) < 0)
2958                                        goto err;
2959                        }
2960                }
2961
2962                STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x67); /* PER */
2963                break;
2964
2965        case STV090x_ERROR:
2966        default:
2967                reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2968                STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
2969                STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
2970                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2971                        goto err;
2972                break;
2973        }
2974
2975        f_1 = STV090x_READ_DEMOD(state, CFR2);
2976        f_0 = STV090x_READ_DEMOD(state, CFR1);
2977        reg = STV090x_READ_DEMOD(state, TMGOBS);
2978
2979        if (state->algo == STV090x_BLIND_SEARCH) {
2980                STV090x_WRITE_DEMOD(state, SFRSTEP, 0x00);
2981                reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2982                STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0x00);
2983                STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00);
2984                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2985                        goto err;
2986                if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0)
2987                        goto err;
2988
2989                if (stv090x_set_srate(state, srate) < 0)
2990                        goto err;
2991                blind_tune = 1;
2992
2993                if (stv090x_dvbs_track_crl(state) < 0)
2994                        goto err;
2995        }
2996
2997        if (state->internal->dev_ver >= 0x20) {
2998                if ((state->search_mode == STV090x_SEARCH_DVBS1)        ||
2999                    (state->search_mode == STV090x_SEARCH_DSS)          ||
3000                    (state->search_mode == STV090x_SEARCH_AUTO)) {
3001
3002                        if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x0a) < 0)
3003                                goto err;
3004                        if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x00) < 0)
3005                                goto err;
3006                }
3007        }
3008
3009        if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
3010                goto err;
3011
3012        /* AUTO tracking MODE */
3013        if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x80) < 0)
3014                goto err;
3015        /* AUTO tracking MODE */
3016        if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x80) < 0)
3017                goto err;
3018
3019        if ((state->internal->dev_ver >= 0x20) || (blind_tune == 1) ||
3020            (state->srate < 10000000)) {
3021                /* update initial carrier freq with the found freq offset */
3022                if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
3023                        goto err;
3024                if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
3025                        goto err;
3026                state->tuner_bw = stv090x_car_width(srate, state->rolloff) + 10000000;
3027
3028                if ((state->internal->dev_ver >= 0x20) || (blind_tune == 1)) {
3029
3030                        if (state->algo != STV090x_WARM_SEARCH) {
3031
3032                                if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3033                                        goto err;
3034
3035                                if (state->config->tuner_set_bandwidth) {
3036                                        if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
3037                                                goto err_gateoff;
3038                                }
3039
3040                                if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3041                                        goto err;
3042
3043                        }
3044                }
3045                if ((state->algo == STV090x_BLIND_SEARCH) || (state->srate < 10000000))
3046                        msleep(50); /* blind search: wait 50ms for SR stabilization */
3047                else
3048                        msleep(5);
3049
3050                stv090x_get_lock_tmg(state);
3051
3052                if (!(stv090x_get_dmdlock(state, (state->DemodTimeout / 2)))) {
3053                        if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
3054                                goto err;
3055                        if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
3056                                goto err;
3057                        if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
3058                                goto err;
3059                        if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
3060                                goto err;
3061
3062                        i = 0;
3063
3064                        while ((!(stv090x_get_dmdlock(state, (state->DemodTimeout / 2)))) && (i <= 2)) {
3065
3066                                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
3067                                        goto err;
3068                                if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
3069                                        goto err;
3070                                if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
3071                                        goto err;
3072                                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
3073                                        goto err;
3074                                i++;
3075                        }
3076                }
3077
3078        }
3079
3080        if (state->internal->dev_ver >= 0x20) {
3081                if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
3082                        goto err;
3083        }
3084
3085        if ((state->delsys == STV090x_DVBS1) || (state->delsys == STV090x_DSS))
3086                stv090x_set_vit_thtracq(state);
3087
3088        return 0;
3089
3090err_gateoff:
3091        stv090x_i2c_gate_ctrl(state, 0);
3092err:
3093        dprintk(FE_ERROR, 1, "I/O error");
3094        return -1;
3095}
3096
3097static int stv090x_get_feclock(struct stv090x_state *state, s32 timeout)
3098{
3099        s32 timer = 0, lock = 0, stat;
3100        u32 reg;
3101
3102        while ((timer < timeout) && (!lock)) {
3103                reg = STV090x_READ_DEMOD(state, DMDSTATE);
3104                stat = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
3105
3106                switch (stat) {
3107                case 0: /* searching */
3108                case 1: /* first PLH detected */
3109                default:
3110                        lock = 0;
3111                        break;
3112
3113                case 2: /* DVB-S2 mode */
3114                        reg = STV090x_READ_DEMOD(state, PDELSTATUS1);
3115                        lock = STV090x_GETFIELD_Px(reg, PKTDELIN_LOCK_FIELD);
3116                        break;
3117
3118                case 3: /* DVB-S1/legacy mode */
3119                        reg = STV090x_READ_DEMOD(state, VSTATUSVIT);
3120                        lock = STV090x_GETFIELD_Px(reg, LOCKEDVIT_FIELD);
3121                        break;
3122                }
3123                if (!lock) {
3124                        msleep(10);
3125                        timer += 10;
3126                }
3127        }
3128        return lock;
3129}
3130
3131static int stv090x_get_lock(struct stv090x_state *state, s32 timeout_dmd, s32 timeout_fec)
3132{
3133        u32 reg;
3134        s32 timer = 0;
3135        int lock;
3136
3137        lock = stv090x_get_dmdlock(state, timeout_dmd);
3138        if (lock)
3139                lock = stv090x_get_feclock(state, timeout_fec);
3140
3141        if (lock) {
3142                lock = 0;
3143
3144                while ((timer < timeout_fec) && (!lock)) {
3145                        reg = STV090x_READ_DEMOD(state, TSSTATUS);
3146                        lock = STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD);
3147                        msleep(1);
3148                        timer++;
3149                }
3150        }
3151
3152        return lock;
3153}
3154
3155static int stv090x_set_s2rolloff(struct stv090x_state *state)
3156{
3157        u32 reg;
3158
3159        if (state->internal->dev_ver <= 0x20) {
3160                /* rolloff to auto mode if DVBS2 */
3161                reg = STV090x_READ_DEMOD(state, DEMOD);
3162                STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 0x00);
3163                if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3164                        goto err;
3165        } else {
3166                /* DVB-S2 rolloff to auto mode if DVBS2 */
3167                reg = STV090x_READ_DEMOD(state, DEMOD);
3168                STV090x_SETFIELD_Px(reg, MANUAL_S2ROLLOFF_FIELD, 0x00);
3169                if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3170                        goto err;
3171        }
3172        return 0;
3173err:
3174        dprintk(FE_ERROR, 1, "I/O error");
3175        return -1;
3176}
3177
3178
3179static enum stv090x_signal_state stv090x_algo(struct stv090x_state *state)
3180{
3181        struct dvb_frontend *fe = &state->frontend;
3182        enum stv090x_signal_state signal_state = STV090x_NOCARRIER;
3183        u32 reg;
3184        s32 agc1_power, power_iq = 0, i;
3185        int lock = 0, low_sr = 0;
3186
3187        reg = STV090x_READ_DEMOD(state, TSCFGH);
3188        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 1); /* Stop path 1 stream merger */
3189        if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3190                goto err;
3191
3192        if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5c) < 0) /* Demod stop */
3193                goto err;
3194
3195        if (state->internal->dev_ver >= 0x20) {
3196                if (state->srate > 5000000) {
3197                        if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x9e) < 0)
3198                                goto err;
3199                } else {
3200                        if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x82) < 0)
3201                                goto err;
3202                }
3203        }
3204
3205        stv090x_get_lock_tmg(state);
3206
3207        if (state->algo == STV090x_BLIND_SEARCH) {
3208                state->tuner_bw = 2 * 36000000; /* wide bw for unknown srate */
3209                if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc0) < 0) /* wider srate scan */
3210                        goto err;
3211                if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x70) < 0)
3212                        goto err;
3213                if (stv090x_set_srate(state, 1000000) < 0) /* initial srate = 1Msps */
3214                        goto err;
3215        } else {
3216                /* known srate */
3217                if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x20) < 0)
3218                        goto err;
3219                if (STV090x_WRITE_DEMOD(state, TMGCFG, 0xd2) < 0)
3220                        goto err;
3221
3222                if (state->srate < 2000000) {
3223                        /* SR < 2MSPS */
3224                        if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x63) < 0)
3225                                goto err;
3226                } else {
3227                        /* SR >= 2Msps */
3228                        if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x70) < 0)
3229                                goto err;
3230                }
3231
3232                if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
3233                        goto err;
3234
3235                if (state->internal->dev_ver >= 0x20) {
3236                        if (STV090x_WRITE_DEMOD(state, KREFTMG, 0x5a) < 0)
3237                                goto err;
3238                        if (state->algo == STV090x_COLD_SEARCH)
3239                                state->tuner_bw = (15 * (stv090x_car_width(state->srate, state->rolloff) + 10000000)) / 10;
3240                        else if (state->algo == STV090x_WARM_SEARCH)
3241                                state->tuner_bw = stv090x_car_width(state->srate, state->rolloff) + 10000000;
3242                }
3243
3244                /* if cold start or warm  (Symbolrate is known)
3245                 * use a Narrow symbol rate scan range
3246                 */
3247                if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0) /* narrow srate scan */
3248                        goto err;
3249
3250                if (stv090x_set_srate(state, state->srate) < 0)
3251                        goto err;
3252
3253                if (stv090x_set_max_srate(state, state->internal->mclk,
3254                                          state->srate) < 0)
3255                        goto err;
3256                if (stv090x_set_min_srate(state, state->internal->mclk,
3257                                          state->srate) < 0)
3258                        goto err;
3259
3260                if (state->srate >= 10000000)
3261                        low_sr = 0;
3262                else
3263                        low_sr = 1;
3264        }
3265
3266        /* Setup tuner */
3267        if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3268                goto err;
3269
3270        if (state->config->tuner_set_bbgain) {
3271                reg = state->config->tuner_bbgain;
3272                if (reg == 0)
3273                        reg = 10; /* default: 10dB */
3274                if (state->config->tuner_set_bbgain(fe, reg) < 0)
3275                        goto err_gateoff;
3276        }
3277
3278        if (state->config->tuner_set_frequency) {
3279                if (state->config->tuner_set_frequency(fe, state->frequency) < 0)
3280                        goto err_gateoff;
3281        }
3282
3283        if (state->config->tuner_set_bandwidth) {
3284                if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
3285                        goto err_gateoff;
3286        }
3287
3288        if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3289                goto err;
3290
3291        msleep(50);
3292
3293        if (state->config->tuner_get_status) {
3294                if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3295                        goto err;
3296                if (state->config->tuner_get_status(fe, &reg) < 0)
3297                        goto err_gateoff;
3298                if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3299                        goto err;
3300
3301                if (reg)
3302                        dprintk(FE_DEBUG, 1, "Tuner phase locked");
3303                else {
3304                        dprintk(FE_DEBUG, 1, "Tuner unlocked");
3305                        return STV090x_NOCARRIER;
3306                }
3307        }
3308
3309        msleep(10);
3310        agc1_power = MAKEWORD16(STV090x_READ_DEMOD(state, AGCIQIN1),
3311                                STV090x_READ_DEMOD(state, AGCIQIN0));
3312
3313        if (agc1_power == 0) {
3314                /* If AGC1 integrator value is 0
3315                 * then read POWERI, POWERQ
3316                 */
3317                for (i = 0; i < 5; i++) {
3318                        power_iq += (STV090x_READ_DEMOD(state, POWERI) +
3319                                     STV090x_READ_DEMOD(state, POWERQ)) >> 1;
3320                }
3321                power_iq /= 5;
3322        }
3323
3324        if ((agc1_power == 0) && (power_iq < STV090x_IQPOWER_THRESHOLD)) {
3325                dprintk(FE_ERROR, 1, "No Signal: POWER_IQ=0x%02x", power_iq);
3326                lock = 0;
3327                signal_state = STV090x_NOAGC1;
3328        } else {
3329                reg = STV090x_READ_DEMOD(state, DEMOD);
3330                STV090x_SETFIELD_Px(reg, SPECINV_CONTROL_FIELD, state->inversion);
3331
3332                if (state->internal->dev_ver <= 0x20) {
3333                        /* rolloff to auto mode if DVBS2 */
3334                        STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 1);
3335                } else {
3336                        /* DVB-S2 rolloff to auto mode if DVBS2 */
3337                        STV090x_SETFIELD_Px(reg, MANUAL_S2ROLLOFF_FIELD, 1);
3338                }
3339                if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3340                        goto err;
3341
3342                if (stv090x_delivery_search(state) < 0)
3343                        goto err;
3344
3345                if (state->algo != STV090x_BLIND_SEARCH) {
3346                        if (stv090x_start_search(state) < 0)
3347                                goto err;
3348                }
3349        }
3350
3351        if (signal_state == STV090x_NOAGC1)
3352                return signal_state;
3353
3354        if (state->algo == STV090x_BLIND_SEARCH)
3355                lock = stv090x_blind_search(state);
3356
3357        else if (state->algo == STV090x_COLD_SEARCH)
3358                lock = stv090x_get_coldlock(state, state->DemodTimeout);
3359
3360        else if (state->algo == STV090x_WARM_SEARCH)
3361                lock = stv090x_get_dmdlock(state, state->DemodTimeout);
3362
3363        if ((!lock) && (state->algo == STV090x_COLD_SEARCH)) {
3364                if (!low_sr) {
3365                        if (stv090x_chk_tmg(state))
3366                                lock = stv090x_sw_algo(state);
3367                }
3368        }
3369
3370        if (lock)
3371                signal_state = stv090x_get_sig_params(state);
3372
3373        if ((lock) && (signal_state == STV090x_RANGEOK)) { /* signal within Range */
3374                stv090x_optimize_track(state);
3375
3376                if (state->internal->dev_ver >= 0x20) {
3377                        /* >= Cut 2.0 :release TS reset after
3378                         * demod lock and optimized Tracking
3379                         */
3380                        reg = STV090x_READ_DEMOD(state, TSCFGH);
3381                        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
3382                        if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3383                                goto err;
3384
3385                        msleep(3);
3386
3387                        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 1); /* merger reset */
3388                        if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3389                                goto err;
3390
3391                        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
3392                        if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3393                                goto err;
3394                }
3395
3396                lock = stv090x_get_lock(state, state->FecTimeout,
3397                                state->FecTimeout);
3398                if (lock) {
3399                        if (state->delsys == STV090x_DVBS2) {
3400                                stv090x_set_s2rolloff(state);
3401
3402                                reg = STV090x_READ_DEMOD(state, PDELCTRL2);
3403                                STV090x_SETFIELD_Px(reg, RESET_UPKO_COUNT, 1);
3404                                if (STV090x_WRITE_DEMOD(state, PDELCTRL2, reg) < 0)
3405                                        goto err;
3406                                /* Reset DVBS2 packet delinator error counter */
3407                                reg = STV090x_READ_DEMOD(state, PDELCTRL2);
3408                                STV090x_SETFIELD_Px(reg, RESET_UPKO_COUNT, 0);
3409                                if (STV090x_WRITE_DEMOD(state, PDELCTRL2, reg) < 0)
3410                                        goto err;
3411
3412                                if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x67) < 0) /* PER */
3413                                        goto err;
3414                        } else {
3415                                if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x75) < 0)
3416                                        goto err;
3417                        }
3418                        /* Reset the Total packet counter */
3419                        if (STV090x_WRITE_DEMOD(state, FBERCPT4, 0x00) < 0)
3420                                goto err;
3421                        /* Reset the packet Error counter2 */
3422                        if (STV090x_WRITE_DEMOD(state, ERRCTRL2, 0xc1) < 0)
3423                                goto err;
3424                } else {
3425                        signal_state = STV090x_NODATA;
3426                        stv090x_chk_signal(state);
3427                }
3428        }
3429        return signal_state;
3430
3431err_gateoff:
3432        stv090x_i2c_gate_ctrl(state, 0);
3433err:
3434        dprintk(FE_ERROR, 1, "I/O error");
3435        return -1;
3436}
3437
3438static int stv090x_set_mis(struct stv090x_state *state, int mis)
3439{
3440        u32 reg;
3441
3442        if (mis < 0 || mis > 255) {
3443                dprintk(FE_DEBUG, 1, "Disable MIS filtering");
3444                reg = STV090x_READ_DEMOD(state, PDELCTRL1);
3445                STV090x_SETFIELD_Px(reg, FILTER_EN_FIELD, 0x00);
3446                if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
3447                        goto err;
3448        } else {
3449                dprintk(FE_DEBUG, 1, "Enable MIS filtering - %d", mis);
3450                reg = STV090x_READ_DEMOD(state, PDELCTRL1);
3451                STV090x_SETFIELD_Px(reg, FILTER_EN_FIELD, 0x01);
3452                if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
3453                        goto err;
3454                if (STV090x_WRITE_DEMOD(state, ISIENTRY, mis) < 0)
3455                        goto err;
3456                if (STV090x_WRITE_DEMOD(state, ISIBITENA, 0xff) < 0)
3457                        goto err;
3458        }
3459        return 0;
3460err:
3461        dprintk(FE_ERROR, 1, "I/O error");
3462        return -1;
3463}
3464
3465static enum dvbfe_search stv090x_search(struct dvb_frontend *fe)
3466{
3467        struct stv090x_state *state = fe->demodulator_priv;
3468        struct dtv_frontend_properties *props = &fe->dtv_property_cache;
3469
3470        if (props->frequency == 0)
3471                return DVBFE_ALGO_SEARCH_INVALID;
3472
3473        switch (props->delivery_system) {
3474        case SYS_DSS:
3475                state->delsys = STV090x_DSS;
3476                break;
3477        case SYS_DVBS:
3478                state->delsys = STV090x_DVBS1;
3479                break;
3480        case SYS_DVBS2:
3481                state->delsys = STV090x_DVBS2;
3482                break;
3483        default:
3484                return DVBFE_ALGO_SEARCH_INVALID;
3485        }
3486
3487        state->frequency = props->frequency;
3488        state->srate = props->symbol_rate;
3489        state->search_mode = STV090x_SEARCH_AUTO;
3490        state->algo = STV090x_COLD_SEARCH;
3491        state->fec = STV090x_PRERR;
3492        if (state->srate > 10000000) {
3493                dprintk(FE_DEBUG, 1, "Search range: 10 MHz");
3494                state->search_range = 10000000;
3495        } else {
3496                dprintk(FE_DEBUG, 1, "Search range: 5 MHz");
3497                state->search_range = 5000000;
3498        }
3499
3500        stv090x_set_mis(state, props->stream_id);
3501
3502        if (stv090x_algo(state) == STV090x_RANGEOK) {
3503                dprintk(FE_DEBUG, 1, "Search success!");
3504                return DVBFE_ALGO_SEARCH_SUCCESS;
3505        } else {
3506                dprintk(FE_DEBUG, 1, "Search failed!");
3507                return DVBFE_ALGO_SEARCH_FAILED;
3508        }
3509
3510        return DVBFE_ALGO_SEARCH_ERROR;
3511}
3512
3513static int stv090x_read_status(struct dvb_frontend *fe, enum fe_status *status)
3514{
3515        struct stv090x_state *state = fe->demodulator_priv;
3516        u32 reg, dstatus;
3517        u8 search_state;
3518
3519        *status = 0;
3520
3521        dstatus = STV090x_READ_DEMOD(state, DSTATUS);
3522        if (STV090x_GETFIELD_Px(dstatus, CAR_LOCK_FIELD))
3523                *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER;
3524
3525        reg = STV090x_READ_DEMOD(state, DMDSTATE);
3526        search_state = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
3527
3528        switch (search_state) {
3529        case 0: /* searching */
3530        case 1: /* first PLH detected */
3531        default:
3532                dprintk(FE_DEBUG, 1, "Status: Unlocked (Searching ..)");
3533                break;
3534
3535        case 2: /* DVB-S2 mode */
3536                dprintk(FE_DEBUG, 1, "Delivery system: DVB-S2");
3537                if (STV090x_GETFIELD_Px(dstatus, LOCK_DEFINITIF_FIELD)) {
3538                        reg = STV090x_READ_DEMOD(state, PDELSTATUS1);
3539                        if (STV090x_GETFIELD_Px(reg, PKTDELIN_LOCK_FIELD)) {
3540                                *status |= FE_HAS_VITERBI;
3541                                reg = STV090x_READ_DEMOD(state, TSSTATUS);
3542                                if (STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD))
3543                                        *status |= FE_HAS_SYNC | FE_HAS_LOCK;
3544                        }
3545                }
3546                break;
3547
3548        case 3: /* DVB-S1/legacy mode */
3549                dprintk(FE_DEBUG, 1, "Delivery system: DVB-S");
3550                if (STV090x_GETFIELD_Px(dstatus, LOCK_DEFINITIF_FIELD)) {
3551                        reg = STV090x_READ_DEMOD(state, VSTATUSVIT);
3552                        if (STV090x_GETFIELD_Px(reg, LOCKEDVIT_FIELD)) {
3553                                *status |= FE_HAS_VITERBI;
3554                                reg = STV090x_READ_DEMOD(state, TSSTATUS);
3555                                if (STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD))
3556                                        *status |= FE_HAS_SYNC | FE_HAS_LOCK;
3557                        }
3558                }
3559                break;
3560        }
3561
3562        return 0;
3563}
3564
3565static int stv090x_read_per(struct dvb_frontend *fe, u32 *per)
3566{
3567        struct stv090x_state *state = fe->demodulator_priv;
3568
3569        s32 count_4, count_3, count_2, count_1, count_0, count;
3570        u32 reg, h, m, l;
3571        enum fe_status status;
3572
3573        stv090x_read_status(fe, &status);
3574        if (!(status & FE_HAS_LOCK)) {
3575                *per = 1 << 23; /* Max PER */
3576        } else {
3577                /* Counter 2 */
3578                reg = STV090x_READ_DEMOD(state, ERRCNT22);
3579                h = STV090x_GETFIELD_Px(reg, ERR_CNT2_FIELD);
3580
3581                reg = STV090x_READ_DEMOD(state, ERRCNT21);
3582                m = STV090x_GETFIELD_Px(reg, ERR_CNT21_FIELD);
3583
3584                reg = STV090x_READ_DEMOD(state, ERRCNT20);
3585                l = STV090x_GETFIELD_Px(reg, ERR_CNT20_FIELD);
3586
3587                *per = ((h << 16) | (m << 8) | l);
3588
3589                count_4 = STV090x_READ_DEMOD(state, FBERCPT4);
3590                count_3 = STV090x_READ_DEMOD(state, FBERCPT3);
3591                count_2 = STV090x_READ_DEMOD(state, FBERCPT2);
3592                count_1 = STV090x_READ_DEMOD(state, FBERCPT1);
3593                count_0 = STV090x_READ_DEMOD(state, FBERCPT0);
3594
3595                if ((!count_4) && (!count_3)) {
3596                        count  = (count_2 & 0xff) << 16;
3597                        count |= (count_1 & 0xff) <<  8;
3598                        count |=  count_0 & 0xff;
3599                } else {
3600                        count = 1 << 24;
3601                }
3602                if (count == 0)
3603                        *per = 1;
3604        }
3605        if (STV090x_WRITE_DEMOD(state, FBERCPT4, 0) < 0)
3606                goto err;
3607        if (STV090x_WRITE_DEMOD(state, ERRCTRL2, 0xc1) < 0)
3608                goto err;
3609
3610        return 0;
3611err:
3612        dprintk(FE_ERROR, 1, "I/O error");
3613        return -1;
3614}
3615
3616static int stv090x_table_lookup(const struct stv090x_tab *tab, int max, int val)
3617{
3618        int res = 0;
3619        int min = 0, med;
3620
3621        if ((val >= tab[min].read && val < tab[max].read) ||
3622            (val >= tab[max].read && val < tab[min].read)) {
3623                while ((max - min) > 1) {
3624                        med = (max + min) / 2;
3625                        if ((val >= tab[min].read && val < tab[med].read) ||
3626                            (val >= tab[med].read && val < tab[min].read))
3627                                max = med;
3628                        else
3629                                min = med;
3630                }
3631                res = ((val - tab[min].read) *
3632                       (tab[max].real - tab[min].real) /
3633                       (tab[max].read - tab[min].read)) +
3634                        tab[min].real;
3635        } else {
3636                if (tab[min].read < tab[max].read) {
3637                        if (val < tab[min].read)
3638                                res = tab[min].real;
3639                        else if (val >= tab[max].read)
3640                                res = tab[max].real;
3641                } else {
3642                        if (val >= tab[min].read)
3643                                res = tab[min].real;
3644                        else if (val < tab[max].read)
3645                                res = tab[max].real;
3646                }
3647        }
3648
3649        return res;
3650}
3651
3652static int stv090x_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
3653{
3654        struct stv090x_state *state = fe->demodulator_priv;
3655        u32 reg;
3656        s32 agc_0, agc_1, agc;
3657        s32 str;
3658
3659        reg = STV090x_READ_DEMOD(state, AGCIQIN1);
3660        agc_1 = STV090x_GETFIELD_Px(reg, AGCIQ_VALUE_FIELD);
3661        reg = STV090x_READ_DEMOD(state, AGCIQIN0);
3662        agc_0 = STV090x_GETFIELD_Px(reg, AGCIQ_VALUE_FIELD);
3663        agc = MAKEWORD16(agc_1, agc_0);
3664
3665        str = stv090x_table_lookup(stv090x_rf_tab,
3666                ARRAY_SIZE(stv090x_rf_tab) - 1, agc);
3667        if (agc > stv090x_rf_tab[0].read)
3668                str = 0;
3669        else if (agc < stv090x_rf_tab[ARRAY_SIZE(stv090x_rf_tab) - 1].read)
3670                str = -100;
3671        *strength = (str + 100) * 0xFFFF / 100;
3672
3673        return 0;
3674}
3675
3676static int stv090x_read_cnr(struct dvb_frontend *fe, u16 *cnr)
3677{
3678        struct stv090x_state *state = fe->demodulator_priv;
3679        u32 reg_0, reg_1, reg, i;
3680        s32 val_0, val_1, val = 0;
3681        u8 lock_f;
3682        s32 div;
3683        u32 last;
3684
3685        switch (state->delsys) {
3686        case STV090x_DVBS2:
3687                reg = STV090x_READ_DEMOD(state, DSTATUS);
3688                lock_f = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
3689                if (lock_f) {
3690                        msleep(5);
3691                        for (i = 0; i < 16; i++) {
3692                                reg_1 = STV090x_READ_DEMOD(state, NNOSPLHT1);
3693                                val_1 = STV090x_GETFIELD_Px(reg_1, NOSPLHT_NORMED_FIELD);
3694                                reg_0 = STV090x_READ_DEMOD(state, NNOSPLHT0);
3695                                val_0 = STV090x_GETFIELD_Px(reg_0, NOSPLHT_NORMED_FIELD);
3696                                val  += MAKEWORD16(val_1, val_0);
3697                                msleep(1);
3698                        }
3699                        val /= 16;
3700                        last = ARRAY_SIZE(stv090x_s2cn_tab) - 1;
3701                        div = stv090x_s2cn_tab[0].read -
3702                              stv090x_s2cn_tab[last].read;
3703                        *cnr = 0xFFFF - ((val * 0xFFFF) / div);
3704                }
3705                break;
3706
3707        case STV090x_DVBS1:
3708        case STV090x_DSS:
3709                reg = STV090x_READ_DEMOD(state, DSTATUS);
3710                lock_f = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
3711                if (lock_f) {
3712                        msleep(5);
3713                        for (i = 0; i < 16; i++) {
3714                                reg_1 = STV090x_READ_DEMOD(state, NOSDATAT1);
3715                                val_1 = STV090x_GETFIELD_Px(reg_1, NOSDATAT_UNNORMED_FIELD);
3716                                reg_0 = STV090x_READ_DEMOD(state, NOSDATAT0);
3717                                val_0 = STV090x_GETFIELD_Px(reg_0, NOSDATAT_UNNORMED_FIELD);
3718                                val  += MAKEWORD16(val_1, val_0);
3719                                msleep(1);
3720                        }
3721                        val /= 16;
3722                        last = ARRAY_SIZE(stv090x_s1cn_tab) - 1;
3723                        div = stv090x_s1cn_tab[0].read -
3724                              stv090x_s1cn_tab[last].read;
3725                        *cnr = 0xFFFF - ((val * 0xFFFF) / div);
3726                }
3727                break;
3728        default:
3729                break;
3730        }
3731
3732        return 0;
3733}
3734
3735static int stv090x_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
3736{
3737        struct stv090x_state *state = fe->demodulator_priv;
3738        u32 reg;
3739
3740        reg = STV090x_READ_DEMOD(state, DISTXCTL);
3741        switch (tone) {
3742        case SEC_TONE_ON:
3743                STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, 0);
3744                STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3745                if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3746                        goto err;
3747                STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3748                if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3749                        goto err;
3750                break;
3751
3752        case SEC_TONE_OFF:
3753                STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, 0);
3754                STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3755                if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3756                        goto err;
3757                break;
3758        default:
3759                return -EINVAL;
3760        }
3761
3762        return 0;
3763err:
3764        dprintk(FE_ERROR, 1, "I/O error");
3765        return -1;
3766}
3767
3768
3769static enum dvbfe_algo stv090x_frontend_algo(struct dvb_frontend *fe)
3770{
3771        return DVBFE_ALGO_CUSTOM;
3772}
3773
3774static int stv090x_send_diseqc_msg(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd)
3775{
3776        struct stv090x_state *state = fe->demodulator_priv;
3777        u32 reg, idle = 0, fifo_full = 1;
3778        int i;
3779
3780        reg = STV090x_READ_DEMOD(state, DISTXCTL);
3781
3782        STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD,
3783                (state->config->diseqc_envelope_mode) ? 4 : 2);
3784        STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3785        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3786                goto err;
3787        STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3788        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3789                goto err;
3790
3791        STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 1);
3792        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3793                goto err;
3794
3795        for (i = 0; i < cmd->msg_len; i++) {
3796
3797                while (fifo_full) {
3798                        reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3799                        fifo_full = STV090x_GETFIELD_Px(reg, FIFO_FULL_FIELD);
3800                }
3801
3802                if (STV090x_WRITE_DEMOD(state, DISTXDATA, cmd->msg[i]) < 0)
3803                        goto err;
3804        }
3805        reg = STV090x_READ_DEMOD(state, DISTXCTL);
3806        STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 0);
3807        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3808                goto err;
3809
3810        i = 0;
3811
3812        while ((!idle) && (i < 10)) {
3813                reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3814                idle = STV090x_GETFIELD_Px(reg, TX_IDLE_FIELD);
3815                msleep(10);
3816                i++;
3817        }
3818
3819        return 0;
3820err:
3821        dprintk(FE_ERROR, 1, "I/O error");
3822        return -1;
3823}
3824
3825static int stv090x_send_diseqc_burst(struct dvb_frontend *fe, fe_sec_mini_cmd_t burst)
3826{
3827        struct stv090x_state *state = fe->demodulator_priv;
3828        u32 reg, idle = 0, fifo_full = 1;
3829        u8 mode, value;
3830        int i;
3831
3832        reg = STV090x_READ_DEMOD(state, DISTXCTL);
3833
3834        if (burst == SEC_MINI_A) {
3835                mode = (state->config->diseqc_envelope_mode) ? 5 : 3;
3836                value = 0x00;
3837        } else {
3838                mode = (state->config->diseqc_envelope_mode) ? 4 : 2;
3839                value = 0xFF;
3840        }
3841
3842        STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, mode);
3843        STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3844        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3845                goto err;
3846        STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3847        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3848                goto err;
3849
3850        STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 1);
3851        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3852                goto err;
3853
3854        while (fifo_full) {
3855                reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3856                fifo_full = STV090x_GETFIELD_Px(reg, FIFO_FULL_FIELD);
3857        }
3858
3859        if (STV090x_WRITE_DEMOD(state, DISTXDATA, value) < 0)
3860                goto err;
3861
3862        reg = STV090x_READ_DEMOD(state, DISTXCTL);
3863        STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 0);
3864        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3865                goto err;
3866
3867        i = 0;
3868
3869        while ((!idle) && (i < 10)) {
3870                reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3871                idle = STV090x_GETFIELD_Px(reg, TX_IDLE_FIELD);
3872                msleep(10);
3873                i++;
3874        }
3875
3876        return 0;
3877err:
3878        dprintk(FE_ERROR, 1, "I/O error");
3879        return -1;
3880}
3881
3882static int stv090x_recv_slave_reply(struct dvb_frontend *fe, struct dvb_diseqc_slave_reply *reply)
3883{
3884        struct stv090x_state *state = fe->demodulator_priv;
3885        u32 reg = 0, i = 0, rx_end = 0;
3886
3887        while ((rx_end != 1) && (i < 10)) {
3888                msleep(10);
3889                i++;
3890                reg = STV090x_READ_DEMOD(state, DISRX_ST0);
3891                rx_end = STV090x_GETFIELD_Px(reg, RX_END_FIELD);
3892        }
3893
3894        if (rx_end) {
3895                reply->msg_len = STV090x_GETFIELD_Px(reg, FIFO_BYTENBR_FIELD);
3896                for (i = 0; i < reply->msg_len; i++)
3897                        reply->msg[i] = STV090x_READ_DEMOD(state, DISRXDATA);
3898        }
3899
3900        return 0;
3901}
3902
3903static int stv090x_sleep(struct dvb_frontend *fe)
3904{
3905        struct stv090x_state *state = fe->demodulator_priv;
3906        u32 reg;
3907        u8 full_standby = 0;
3908
3909        if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3910                goto err;
3911
3912        if (state->config->tuner_sleep) {
3913                if (state->config->tuner_sleep(fe) < 0)
3914                        goto err_gateoff;
3915        }
3916
3917        if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3918                goto err;
3919
3920        dprintk(FE_DEBUG, 1, "Set %s(%d) to sleep",
3921                state->device == STV0900 ? "STV0900" : "STV0903",
3922                state->demod);
3923
3924        mutex_lock(&state->internal->demod_lock);
3925
3926        switch (state->demod) {
3927        case STV090x_DEMODULATOR_0:
3928                /* power off ADC 1 */
3929                reg = stv090x_read_reg(state, STV090x_TSTTNR1);
3930                STV090x_SETFIELD(reg, ADC1_PON_FIELD, 0);
3931                if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
3932                        goto err_unlock;
3933                /* power off DiSEqC 1 */
3934                reg = stv090x_read_reg(state, STV090x_TSTTNR2);
3935                STV090x_SETFIELD(reg, DISEQC1_PON_FIELD, 0);
3936                if (stv090x_write_reg(state, STV090x_TSTTNR2, reg) < 0)
3937                        goto err_unlock;
3938
3939                /* check whether path 2 is already sleeping, that is when
3940                   ADC2 is off */
3941                reg = stv090x_read_reg(state, STV090x_TSTTNR3);
3942                if (STV090x_GETFIELD(reg, ADC2_PON_FIELD) == 0)
3943                        full_standby = 1;
3944
3945                /* stop clocks */
3946                reg = stv090x_read_reg(state, STV090x_STOPCLK1);
3947                /* packet delineator 1 clock */
3948                STV090x_SETFIELD(reg, STOP_CLKPKDT1_FIELD, 1);
3949                /* ADC 1 clock */
3950                STV090x_SETFIELD(reg, STOP_CLKADCI1_FIELD, 1);
3951                /* FEC clock is shared between the two paths, only stop it
3952                   when full standby is possible */
3953                if (full_standby)
3954                        STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 1);
3955                if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
3956                        goto err_unlock;
3957                reg = stv090x_read_reg(state, STV090x_STOPCLK2);
3958                /* sampling 1 clock */
3959                STV090x_SETFIELD(reg, STOP_CLKSAMP1_FIELD, 1);
3960                /* viterbi 1 clock */
3961                STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, 1);
3962                /* TS clock is shared between the two paths, only stop it
3963                   when full standby is possible */
3964                if (full_standby)
3965                        STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 1);
3966                if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
3967                        goto err_unlock;
3968                break;
3969
3970        case STV090x_DEMODULATOR_1:
3971                /* power off ADC 2 */
3972                reg = stv090x_read_reg(state, STV090x_TSTTNR3);
3973                STV090x_SETFIELD(reg, ADC2_PON_FIELD, 0);
3974                if (stv090x_write_reg(state, STV090x_TSTTNR3, reg) < 0)
3975                        goto err_unlock;
3976                /* power off DiSEqC 2 */
3977                reg = stv090x_read_reg(state, STV090x_TSTTNR4);
3978                STV090x_SETFIELD(reg, DISEQC2_PON_FIELD, 0);
3979                if (stv090x_write_reg(state, STV090x_TSTTNR4, reg) < 0)
3980                        goto err_unlock;
3981
3982                /* check whether path 1 is already sleeping, that is when
3983                   ADC1 is off */
3984                reg = stv090x_read_reg(state, STV090x_TSTTNR1);
3985                if (STV090x_GETFIELD(reg, ADC1_PON_FIELD) == 0)
3986                        full_standby = 1;
3987
3988                /* stop clocks */
3989                reg = stv090x_read_reg(state, STV090x_STOPCLK1);
3990                /* packet delineator 2 clock */
3991                STV090x_SETFIELD(reg, STOP_CLKPKDT2_FIELD, 1);
3992                /* ADC 2 clock */
3993                STV090x_SETFIELD(reg, STOP_CLKADCI2_FIELD, 1);
3994                /* FEC clock is shared between the two paths, only stop it
3995                   when full standby is possible */
3996                if (full_standby)
3997                        STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 1);
3998                if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
3999                        goto err_unlock;
4000                reg = stv090x_read_reg(state, STV090x_STOPCLK2);
4001                /* sampling 2 clock */
4002                STV090x_SETFIELD(reg, STOP_CLKSAMP2_FIELD, 1);
4003                /* viterbi 2 clock */
4004                STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, 1);
4005                /* TS clock is shared between the two paths, only stop it
4006                   when full standby is possible */
4007                if (full_standby)
4008                        STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 1);
4009                if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
4010                        goto err_unlock;
4011                break;
4012
4013        default:
4014                dprintk(FE_ERROR, 1, "Wrong demodulator!");
4015                break;
4016        }
4017
4018        if (full_standby) {
4019                /* general power off */
4020                reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4021                STV090x_SETFIELD(reg, STANDBY_FIELD, 0x01);
4022                if (stv090x_write_reg(state, STV090x_SYNTCTRL, reg) < 0)
4023                        goto err_unlock;
4024        }
4025
4026        mutex_unlock(&state->internal->demod_lock);
4027        return 0;
4028
4029err_gateoff:
4030        stv090x_i2c_gate_ctrl(state, 0);
4031        goto err;
4032err_unlock:
4033        mutex_unlock(&state->internal->demod_lock);
4034err:
4035        dprintk(FE_ERROR, 1, "I/O error");
4036        return -1;
4037}
4038
4039static int stv090x_wakeup(struct dvb_frontend *fe)
4040{
4041        struct stv090x_state *state = fe->demodulator_priv;
4042        u32 reg;
4043
4044        dprintk(FE_DEBUG, 1, "Wake %s(%d) from standby",
4045                state->device == STV0900 ? "STV0900" : "STV0903",
4046                state->demod);
4047
4048        mutex_lock(&state->internal->demod_lock);
4049
4050        /* general power on */
4051        reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4052        STV090x_SETFIELD(reg, STANDBY_FIELD, 0x00);
4053        if (stv090x_write_reg(state, STV090x_SYNTCTRL, reg) < 0)
4054                goto err;
4055
4056        switch (state->demod) {
4057        case STV090x_DEMODULATOR_0:
4058                /* power on ADC 1 */
4059                reg = stv090x_read_reg(state, STV090x_TSTTNR1);
4060                STV090x_SETFIELD(reg, ADC1_PON_FIELD, 1);
4061                if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
4062                        goto err;
4063                /* power on DiSEqC 1 */
4064                reg = stv090x_read_reg(state, STV090x_TSTTNR2);
4065                STV090x_SETFIELD(reg, DISEQC1_PON_FIELD, 1);
4066                if (stv090x_write_reg(state, STV090x_TSTTNR2, reg) < 0)
4067                        goto err;
4068
4069                /* activate clocks */
4070                reg = stv090x_read_reg(state, STV090x_STOPCLK1);
4071                /* packet delineator 1 clock */
4072                STV090x_SETFIELD(reg, STOP_CLKPKDT1_FIELD, 0);
4073                /* ADC 1 clock */
4074                STV090x_SETFIELD(reg, STOP_CLKADCI1_FIELD, 0);
4075                /* FEC clock */
4076                STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 0);
4077                if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
4078                        goto err;
4079                reg = stv090x_read_reg(state, STV090x_STOPCLK2);
4080                /* sampling 1 clock */
4081                STV090x_SETFIELD(reg, STOP_CLKSAMP1_FIELD, 0);
4082                /* viterbi 1 clock */
4083                STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, 0);
4084                /* TS clock */
4085                STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 0);
4086                if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
4087                        goto err;
4088                break;
4089
4090        case STV090x_DEMODULATOR_1:
4091                /* power on ADC 2 */
4092                reg = stv090x_read_reg(state, STV090x_TSTTNR3);
4093                STV090x_SETFIELD(reg, ADC2_PON_FIELD, 1);
4094                if (stv090x_write_reg(state, STV090x_TSTTNR3, reg) < 0)
4095                        goto err;
4096                /* power on DiSEqC 2 */
4097                reg = stv090x_read_reg(state, STV090x_TSTTNR4);
4098                STV090x_SETFIELD(reg, DISEQC2_PON_FIELD, 1);
4099                if (stv090x_write_reg(state, STV090x_TSTTNR4, reg) < 0)
4100                        goto err;
4101
4102                /* activate clocks */
4103                reg = stv090x_read_reg(state, STV090x_STOPCLK1);
4104                /* packet delineator 2 clock */
4105                STV090x_SETFIELD(reg, STOP_CLKPKDT2_FIELD, 0);
4106                /* ADC 2 clock */
4107                STV090x_SETFIELD(reg, STOP_CLKADCI2_FIELD, 0);
4108                /* FEC clock */
4109                STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 0);
4110                if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
4111                        goto err;
4112                reg = stv090x_read_reg(state, STV090x_STOPCLK2);
4113                /* sampling 2 clock */
4114                STV090x_SETFIELD(reg, STOP_CLKSAMP2_FIELD, 0);
4115                /* viterbi 2 clock */
4116                STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, 0);
4117                /* TS clock */
4118                STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 0);
4119                if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
4120                        goto err;
4121                break;
4122
4123        default:
4124                dprintk(FE_ERROR, 1, "Wrong demodulator!");
4125                break;
4126        }
4127
4128        mutex_unlock(&state->internal->demod_lock);
4129        return 0;
4130err:
4131        mutex_unlock(&state->internal->demod_lock);
4132        dprintk(FE_ERROR, 1, "I/O error");
4133        return -1;
4134}
4135
4136static void stv090x_release(struct dvb_frontend *fe)
4137{
4138        struct stv090x_state *state = fe->demodulator_priv;
4139
4140        state->internal->num_used--;
4141        if (state->internal->num_used <= 0) {
4142
4143                dprintk(FE_ERROR, 1, "Actually removing");
4144
4145                remove_dev(state->internal);
4146                kfree(state->internal);
4147        }
4148
4149        kfree(state);
4150}
4151
4152static int stv090x_ldpc_mode(struct stv090x_state *state, enum stv090x_mode ldpc_mode)
4153{
4154        u32 reg = 0;
4155
4156        reg = stv090x_read_reg(state, STV090x_GENCFG);
4157
4158        switch (ldpc_mode) {
4159        case STV090x_DUAL:
4160        default:
4161                if ((state->demod_mode != STV090x_DUAL) || (STV090x_GETFIELD(reg, DDEMOD_FIELD) != 1)) {
4162                        /* set LDPC to dual mode */
4163                        if (stv090x_write_reg(state, STV090x_GENCFG, 0x1d) < 0)
4164                                goto err;
4165
4166                        state->demod_mode = STV090x_DUAL;
4167
4168                        reg = stv090x_read_reg(state, STV090x_TSTRES0);
4169                        STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x1);
4170                        if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4171                                goto err;
4172                        STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x0);
4173                        if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4174                                goto err;
4175
4176                        if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
4177                                goto err;
4178                        if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xff) < 0)
4179                                goto err;
4180                        if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xff) < 0)
4181                                goto err;
4182                        if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xff) < 0)
4183                                goto err;
4184                        if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xff) < 0)
4185                                goto err;
4186                        if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xff) < 0)
4187                                goto err;
4188                        if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xff) < 0)
4189                                goto err;
4190
4191                        if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xcc) < 0)
4192                                goto err;
4193                        if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xcc) < 0)
4194                                goto err;
4195                        if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xcc) < 0)
4196                                goto err;
4197                        if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xcc) < 0)
4198                                goto err;
4199                        if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xcc) < 0)
4200                                goto err;
4201                        if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xcc) < 0)
4202                                goto err;
4203                        if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xcc) < 0)
4204                                goto err;
4205
4206                        if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xff) < 0)
4207                                goto err;
4208                        if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xcf) < 0)
4209                                goto err;
4210                }
4211                break;
4212
4213        case STV090x_SINGLE:
4214                if (stv090x_stop_modcod(state) < 0)
4215                        goto err;
4216                if (stv090x_activate_modcod_single(state) < 0)
4217                        goto err;
4218
4219                if (state->demod == STV090x_DEMODULATOR_1) {
4220                        if (stv090x_write_reg(state, STV090x_GENCFG, 0x06) < 0) /* path 2 */
4221                                goto err;
4222                } else {
4223                        if (stv090x_write_reg(state, STV090x_GENCFG, 0x04) < 0) /* path 1 */
4224                                goto err;
4225                }
4226
4227                reg = stv090x_read_reg(state, STV090x_TSTRES0);
4228                STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x1);
4229                if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4230                        goto err;
4231                STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x0);
4232                if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4233                        goto err;
4234
4235                reg = STV090x_READ_DEMOD(state, PDELCTRL1);
4236                STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x01);
4237                if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
4238                        goto err;
4239                STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x00);
4240                if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
4241                        goto err;
4242                break;
4243        }
4244
4245        return 0;
4246err:
4247        dprintk(FE_ERROR, 1, "I/O error");
4248        return -1;
4249}
4250
4251/* return (Hz), clk in Hz*/
4252static u32 stv090x_get_mclk(struct stv090x_state *state)
4253{
4254        const struct stv090x_config *config = state->config;
4255        u32 div, reg;
4256        u8 ratio;
4257
4258        div = stv090x_read_reg(state, STV090x_NCOARSE);
4259        reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4260        ratio = STV090x_GETFIELD(reg, SELX1RATIO_FIELD) ? 4 : 6;
4261
4262        return (div + 1) * config->xtal / ratio; /* kHz */
4263}
4264
4265static int stv090x_set_mclk(struct stv090x_state *state, u32 mclk, u32 clk)
4266{
4267        const struct stv090x_config *config = state->config;
4268        u32 reg, div, clk_sel;
4269
4270        reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4271        clk_sel = ((STV090x_GETFIELD(reg, SELX1RATIO_FIELD) == 1) ? 4 : 6);
4272
4273        div = ((clk_sel * mclk) / config->xtal) - 1;
4274
4275        reg = stv090x_read_reg(state, STV090x_NCOARSE);
4276        STV090x_SETFIELD(reg, M_DIV_FIELD, div);
4277        if (stv090x_write_reg(state, STV090x_NCOARSE, reg) < 0)
4278                goto err;
4279
4280        state->internal->mclk = stv090x_get_mclk(state);
4281
4282        /*Set the DiseqC frequency to 22KHz */
4283        div = state->internal->mclk / 704000;
4284        if (STV090x_WRITE_DEMOD(state, F22TX, div) < 0)
4285                goto err;
4286        if (STV090x_WRITE_DEMOD(state, F22RX, div) < 0)
4287                goto err;
4288
4289        return 0;
4290err:
4291        dprintk(FE_ERROR, 1, "I/O error");
4292        return -1;
4293}
4294
4295static int stv0900_set_tspath(struct stv090x_state *state)
4296{
4297        u32 reg;
4298
4299        if (state->internal->dev_ver >= 0x20) {
4300                switch (state->config->ts1_mode) {
4301                case STV090x_TSMODE_PARALLEL_PUNCTURED:
4302                case STV090x_TSMODE_DVBCI:
4303                        switch (state->config->ts2_mode) {
4304                        case STV090x_TSMODE_SERIAL_PUNCTURED:
4305                        case STV090x_TSMODE_SERIAL_CONTINUOUS:
4306                        default:
4307                                stv090x_write_reg(state, STV090x_TSGENERAL, 0x00);
4308                                break;
4309
4310                        case STV090x_TSMODE_PARALLEL_PUNCTURED:
4311                        case STV090x_TSMODE_DVBCI:
4312                                if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x06) < 0) /* Mux'd stream mode */
4313                                        goto err;
4314                                reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4315                                STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4316                                if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4317                                        goto err;
4318                                reg = stv090x_read_reg(state, STV090x_P2_TSCFGM);
4319                                STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4320                                if (stv090x_write_reg(state, STV090x_P2_TSCFGM, reg) < 0)
4321                                        goto err;
4322                                if (stv090x_write_reg(state, STV090x_P1_TSSPEED, 0x14) < 0)
4323                                        goto err;
4324                                if (stv090x_write_reg(state, STV090x_P2_TSSPEED, 0x28) < 0)
4325                                        goto err;
4326                                break;
4327                        }
4328                        break;
4329
4330                case STV090x_TSMODE_SERIAL_PUNCTURED:
4331                case STV090x_TSMODE_SERIAL_CONTINUOUS:
4332                default:
4333                        switch (state->config->ts2_mode) {
4334                        case STV090x_TSMODE_SERIAL_PUNCTURED:
4335                        case STV090x_TSMODE_SERIAL_CONTINUOUS:
4336                        default:
4337                                if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c) < 0)
4338                                        goto err;
4339                                break;
4340
4341                        case STV090x_TSMODE_PARALLEL_PUNCTURED:
4342                        case STV090x_TSMODE_DVBCI:
4343                                if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0a) < 0)
4344                                        goto err;
4345                                break;
4346                        }
4347                        break;
4348                }
4349        } else {
4350                switch (state->config->ts1_mode) {
4351                case STV090x_TSMODE_PARALLEL_PUNCTURED:
4352                case STV090x_TSMODE_DVBCI:
4353                        switch (state->config->ts2_mode) {
4354                        case STV090x_TSMODE_SERIAL_PUNCTURED:
4355                        case STV090x_TSMODE_SERIAL_CONTINUOUS:
4356                        default:
4357                                stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x10);
4358                                break;
4359
4360                        case STV090x_TSMODE_PARALLEL_PUNCTURED:
4361                        case STV090x_TSMODE_DVBCI:
4362                                stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x16);
4363                                reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4364                                STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4365                                if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4366                                        goto err;
4367                                reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4368                                STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 0);
4369                                if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4370                                        goto err;
4371                                if (stv090x_write_reg(state, STV090x_P1_TSSPEED, 0x14) < 0)
4372                                        goto err;
4373                                if (stv090x_write_reg(state, STV090x_P2_TSSPEED, 0x28) < 0)
4374                                        goto err;
4375                                break;
4376                        }
4377                        break;
4378
4379                case STV090x_TSMODE_SERIAL_PUNCTURED:
4380                case STV090x_TSMODE_SERIAL_CONTINUOUS:
4381                default:
4382                        switch (state->config->ts2_mode) {
4383                        case STV090x_TSMODE_SERIAL_PUNCTURED:
4384                        case STV090x_TSMODE_SERIAL_CONTINUOUS:
4385                        default:
4386                                stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x14);
4387                                break;
4388
4389                        case STV090x_TSMODE_PARALLEL_PUNCTURED:
4390                        case STV090x_TSMODE_DVBCI:
4391                                stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x12);
4392                                break;
4393                        }
4394                        break;
4395                }
4396        }
4397
4398        switch (state->config->ts1_mode) {
4399        case STV090x_TSMODE_PARALLEL_PUNCTURED:
4400                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4401                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4402                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4403                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4404                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4405                        goto err;
4406                break;
4407
4408        case STV090x_TSMODE_DVBCI:
4409                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4410                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4411                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4412                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4413                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4414                        goto err;
4415                break;
4416
4417        case STV090x_TSMODE_SERIAL_PUNCTURED:
4418                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4419                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4420                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4421                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4422                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4423                        goto err;
4424                break;
4425
4426        case STV090x_TSMODE_SERIAL_CONTINUOUS:
4427                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4428                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4429                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4430                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4431                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4432                        goto err;
4433                break;
4434
4435        default:
4436                break;
4437        }
4438
4439        switch (state->config->ts2_mode) {
4440        case STV090x_TSMODE_PARALLEL_PUNCTURED:
4441                reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4442                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4443                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4444                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4445                if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4446                        goto err;
4447                break;
4448
4449        case STV090x_TSMODE_DVBCI:
4450                reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4451                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4452                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4453                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4454                if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4455                        goto err;
4456                break;
4457
4458        case STV090x_TSMODE_SERIAL_PUNCTURED:
4459                reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4460                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4461                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4462                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4463                if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4464                        goto err;
4465                break;
4466
4467        case STV090x_TSMODE_SERIAL_CONTINUOUS:
4468                reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4469                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4470                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4471                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4472                if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4473                        goto err;
4474                break;
4475
4476        default:
4477                break;
4478        }
4479
4480        if (state->config->ts1_clk > 0) {
4481                u32 speed;
4482
4483                switch (state->config->ts1_mode) {
4484                case STV090x_TSMODE_PARALLEL_PUNCTURED:
4485                case STV090x_TSMODE_DVBCI:
4486                default:
4487                        speed = state->internal->mclk /
4488                                (state->config->ts1_clk / 4);
4489                        if (speed < 0x08)
4490                                speed = 0x08;
4491                        if (speed > 0xFF)
4492                                speed = 0xFF;
4493                        break;
4494                case STV090x_TSMODE_SERIAL_PUNCTURED:
4495                case STV090x_TSMODE_SERIAL_CONTINUOUS:
4496                        speed = state->internal->mclk /
4497                                (state->config->ts1_clk / 32);
4498                        if (speed < 0x20)
4499                                speed = 0x20;
4500                        if (speed > 0xFF)
4501                                speed = 0xFF;
4502                        break;
4503                }
4504                reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4505                STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4506                if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4507                        goto err;
4508                if (stv090x_write_reg(state, STV090x_P1_TSSPEED, speed) < 0)
4509                        goto err;
4510        }
4511
4512        if (state->config->ts2_clk > 0) {
4513                u32 speed;
4514
4515                switch (state->config->ts2_mode) {
4516                case STV090x_TSMODE_PARALLEL_PUNCTURED:
4517                case STV090x_TSMODE_DVBCI:
4518                default:
4519                        speed = state->internal->mclk /
4520                                (state->config->ts2_clk / 4);
4521                        if (speed < 0x08)
4522                                speed = 0x08;
4523                        if (speed > 0xFF)
4524                                speed = 0xFF;
4525                        break;
4526                case STV090x_TSMODE_SERIAL_PUNCTURED:
4527                case STV090x_TSMODE_SERIAL_CONTINUOUS:
4528                        speed = state->internal->mclk /
4529                                (state->config->ts2_clk / 32);
4530                        if (speed < 0x20)
4531                                speed = 0x20;
4532                        if (speed > 0xFF)
4533                                speed = 0xFF;
4534                        break;
4535                }
4536                reg = stv090x_read_reg(state, STV090x_P2_TSCFGM);
4537                STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4538                if (stv090x_write_reg(state, STV090x_P2_TSCFGM, reg) < 0)
4539                        goto err;
4540                if (stv090x_write_reg(state, STV090x_P2_TSSPEED, speed) < 0)
4541                        goto err;
4542        }
4543
4544        reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4545        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
4546        if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4547                goto err;
4548        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
4549        if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4550                goto err;
4551
4552        reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4553        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
4554        if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4555                goto err;
4556        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
4557        if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4558                goto err;
4559
4560        return 0;
4561err:
4562        dprintk(FE_ERROR, 1, "I/O error");
4563        return -1;
4564}
4565
4566static int stv0903_set_tspath(struct stv090x_state *state)
4567{
4568        u32 reg;
4569
4570        if (state->internal->dev_ver >= 0x20) {
4571                switch (state->config->ts1_mode) {
4572                case STV090x_TSMODE_PARALLEL_PUNCTURED:
4573                case STV090x_TSMODE_DVBCI:
4574                        stv090x_write_reg(state, STV090x_TSGENERAL, 0x00);
4575                        break;
4576
4577                case STV090x_TSMODE_SERIAL_PUNCTURED:
4578                case STV090x_TSMODE_SERIAL_CONTINUOUS:
4579                default:
4580                        stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c);
4581                        break;
4582                }
4583        } else {
4584                switch (state->config->ts1_mode) {
4585                case STV090x_TSMODE_PARALLEL_PUNCTURED:
4586                case STV090x_TSMODE_DVBCI:
4587                        stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x10);
4588                        break;
4589
4590                case STV090x_TSMODE_SERIAL_PUNCTURED:
4591                case STV090x_TSMODE_SERIAL_CONTINUOUS:
4592                default:
4593                        stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x14);
4594                        break;
4595                }
4596        }
4597
4598        switch (state->config->ts1_mode) {
4599        case STV090x_TSMODE_PARALLEL_PUNCTURED:
4600                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4601                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4602                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4603                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4604                        goto err;
4605                break;
4606
4607        case STV090x_TSMODE_DVBCI:
4608                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4609                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4610                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4611                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4612                        goto err;
4613                break;
4614
4615        case STV090x_TSMODE_SERIAL_PUNCTURED:
4616                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4617                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4618                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4619                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4620                        goto err;
4621                break;
4622
4623        case STV090x_TSMODE_SERIAL_CONTINUOUS:
4624                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4625                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4626                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4627                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4628                        goto err;
4629                break;
4630
4631        default:
4632                break;
4633        }
4634
4635        if (state->config->ts1_clk > 0) {
4636                u32 speed;
4637
4638                switch (state->config->ts1_mode) {
4639                case STV090x_TSMODE_PARALLEL_PUNCTURED:
4640                case STV090x_TSMODE_DVBCI:
4641                default:
4642                        speed = state->internal->mclk /
4643                                (state->config->ts1_clk / 4);
4644                        if (speed < 0x08)
4645                                speed = 0x08;
4646                        if (speed > 0xFF)
4647                                speed = 0xFF;
4648                        break;
4649                case STV090x_TSMODE_SERIAL_PUNCTURED:
4650                case STV090x_TSMODE_SERIAL_CONTINUOUS:
4651                        speed = state->internal->mclk /
4652                                (state->config->ts1_clk / 32);
4653                        if (speed < 0x20)
4654                                speed = 0x20;
4655                        if (speed > 0xFF)
4656                                speed = 0xFF;
4657                        break;
4658                }
4659                reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4660                STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4661                if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4662                        goto err;
4663                if (stv090x_write_reg(state, STV090x_P1_TSSPEED, speed) < 0)
4664                        goto err;
4665        }
4666
4667        reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4668        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
4669        if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4670                goto err;
4671        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
4672        if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4673                goto err;
4674
4675        return 0;
4676err:
4677        dprintk(FE_ERROR, 1, "I/O error");
4678        return -1;
4679}
4680
4681static int stv090x_init(struct dvb_frontend *fe)
4682{
4683        struct stv090x_state *state = fe->demodulator_priv;
4684        const struct stv090x_config *config = state->config;
4685        u32 reg;
4686
4687        if (state->internal->mclk == 0) {
4688                /* call tuner init to configure the tuner's clock output
4689                   divider directly before setting up the master clock of
4690                   the stv090x. */
4691                if (stv090x_i2c_gate_ctrl(state, 1) < 0)
4692                        goto err;
4693
4694                if (config->tuner_init) {
4695                        if (config->tuner_init(fe) < 0)
4696                                goto err_gateoff;
4697                }
4698
4699                if (stv090x_i2c_gate_ctrl(state, 0) < 0)
4700                        goto err;
4701
4702                stv090x_set_mclk(state, 135000000, config->xtal); /* 135 Mhz */
4703                msleep(5);
4704                if (stv090x_write_reg(state, STV090x_SYNTCTRL,
4705                                      0x20 | config->clk_mode) < 0)
4706                        goto err;
4707                stv090x_get_mclk(state);
4708        }
4709
4710        if (stv090x_wakeup(fe) < 0) {
4711                dprintk(FE_ERROR, 1, "Error waking device");
4712                goto err;
4713        }
4714
4715        if (stv090x_ldpc_mode(state, state->demod_mode) < 0)
4716                goto err;
4717
4718        reg = STV090x_READ_DEMOD(state, TNRCFG2);
4719        STV090x_SETFIELD_Px(reg, TUN_IQSWAP_FIELD, state->inversion);
4720        if (STV090x_WRITE_DEMOD(state, TNRCFG2, reg) < 0)
4721                goto err;
4722        reg = STV090x_READ_DEMOD(state, DEMOD);
4723        STV090x_SETFIELD_Px(reg, ROLLOFF_CONTROL_FIELD, state->rolloff);
4724        if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
4725                goto err;
4726
4727        if (stv090x_i2c_gate_ctrl(state, 1) < 0)
4728                goto err;
4729
4730        if (config->tuner_set_mode) {
4731                if (config->tuner_set_mode(fe, TUNER_WAKE) < 0)
4732                        goto err_gateoff;
4733        }
4734
4735        if (config->tuner_init) {
4736                if (config->tuner_init(fe) < 0)
4737                        goto err_gateoff;
4738        }
4739
4740        if (stv090x_i2c_gate_ctrl(state, 0) < 0)
4741                goto err;
4742
4743        if (state->device == STV0900) {
4744                if (stv0900_set_tspath(state) < 0)
4745                        goto err;
4746        } else {
4747                if (stv0903_set_tspath(state) < 0)
4748                        goto err;
4749        }
4750
4751        return 0;
4752
4753err_gateoff:
4754        stv090x_i2c_gate_ctrl(state, 0);
4755err:
4756        dprintk(FE_ERROR, 1, "I/O error");
4757        return -1;
4758}
4759
4760static int stv090x_setup(struct dvb_frontend *fe)
4761{
4762        struct stv090x_state *state = fe->demodulator_priv;
4763        const struct stv090x_config *config = state->config;
4764        const struct stv090x_reg *stv090x_initval = NULL;
4765        const struct stv090x_reg *stv090x_cut20_val = NULL;
4766        unsigned long t1_size = 0, t2_size = 0;
4767        u32 reg = 0;
4768
4769        int i;
4770
4771        if (state->device == STV0900) {
4772                dprintk(FE_DEBUG, 1, "Initializing STV0900");
4773                stv090x_initval = stv0900_initval;
4774                t1_size = ARRAY_SIZE(stv0900_initval);
4775                stv090x_cut20_val = stv0900_cut20_val;
4776                t2_size = ARRAY_SIZE(stv0900_cut20_val);
4777        } else if (state->device == STV0903) {
4778                dprintk(FE_DEBUG, 1, "Initializing STV0903");
4779                stv090x_initval = stv0903_initval;
4780                t1_size = ARRAY_SIZE(stv0903_initval);
4781                stv090x_cut20_val = stv0903_cut20_val;
4782                t2_size = ARRAY_SIZE(stv0903_cut20_val);
4783        }
4784
4785        /* STV090x init */
4786
4787        /* Stop Demod */
4788        if (stv090x_write_reg(state, STV090x_P1_DMDISTATE, 0x5c) < 0)
4789                goto err;
4790        if (state->device == STV0900)
4791                if (stv090x_write_reg(state, STV090x_P2_DMDISTATE, 0x5c) < 0)
4792                        goto err;
4793
4794        msleep(5);
4795
4796        /* Set No Tuner Mode */
4797        if (stv090x_write_reg(state, STV090x_P1_TNRCFG, 0x6c) < 0)
4798                goto err;
4799        if (state->device == STV0900)
4800                if (stv090x_write_reg(state, STV090x_P2_TNRCFG, 0x6c) < 0)
4801                        goto err;
4802
4803        /* I2C repeater OFF */
4804        STV090x_SETFIELD_Px(reg, ENARPT_LEVEL_FIELD, config->repeater_level);
4805        if (stv090x_write_reg(state, STV090x_P1_I2CRPT, reg) < 0)
4806                goto err;
4807        if (state->device == STV0900)
4808                if (stv090x_write_reg(state, STV090x_P2_I2CRPT, reg) < 0)
4809                        goto err;
4810
4811        if (stv090x_write_reg(state, STV090x_NCOARSE, 0x13) < 0) /* set PLL divider */
4812                goto err;
4813        msleep(5);
4814        if (stv090x_write_reg(state, STV090x_I2CCFG, 0x08) < 0) /* 1/41 oversampling */
4815                goto err;
4816        if (stv090x_write_reg(state, STV090x_SYNTCTRL, 0x20 | config->clk_mode) < 0) /* enable PLL */
4817                goto err;
4818        msleep(5);
4819
4820        /* write initval */
4821        dprintk(FE_DEBUG, 1, "Setting up initial values");
4822        for (i = 0; i < t1_size; i++) {
4823                if (stv090x_write_reg(state, stv090x_initval[i].addr, stv090x_initval[i].data) < 0)
4824                        goto err;
4825        }
4826
4827        state->internal->dev_ver = stv090x_read_reg(state, STV090x_MID);
4828        if (state->internal->dev_ver >= 0x20) {
4829                if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c) < 0)
4830                        goto err;
4831
4832                /* write cut20_val*/
4833                dprintk(FE_DEBUG, 1, "Setting up Cut 2.0 initial values");
4834                for (i = 0; i < t2_size; i++) {
4835                        if (stv090x_write_reg(state, stv090x_cut20_val[i].addr, stv090x_cut20_val[i].data) < 0)
4836                                goto err;
4837                }
4838
4839        } else if (state->internal->dev_ver < 0x20) {
4840                dprintk(FE_ERROR, 1, "ERROR: Unsupported Cut: 0x%02x!",
4841                        state->internal->dev_ver);
4842
4843                goto err;
4844        } else if (state->internal->dev_ver > 0x30) {
4845                /* we shouldn't bail out from here */
4846                dprintk(FE_ERROR, 1, "INFO: Cut: 0x%02x probably incomplete support!",
4847                        state->internal->dev_ver);
4848        }
4849
4850        /* ADC1 range */
4851        reg = stv090x_read_reg(state, STV090x_TSTTNR1);
4852        STV090x_SETFIELD(reg, ADC1_INMODE_FIELD,
4853                (config->adc1_range == STV090x_ADC_1Vpp) ? 0 : 1);
4854        if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
4855                goto err;
4856
4857        /* ADC2 range */
4858        reg = stv090x_read_reg(state, STV090x_TSTTNR3);
4859        STV090x_SETFIELD(reg, ADC2_INMODE_FIELD,
4860                (config->adc2_range == STV090x_ADC_1Vpp) ? 0 : 1);
4861        if (stv090x_write_reg(state, STV090x_TSTTNR3, reg) < 0)
4862                goto err;
4863
4864        if (stv090x_write_reg(state, STV090x_TSTRES0, 0x80) < 0)
4865                goto err;
4866        if (stv090x_write_reg(state, STV090x_TSTRES0, 0x00) < 0)
4867                goto err;
4868
4869        return 0;
4870err:
4871        dprintk(FE_ERROR, 1, "I/O error");
4872        return -1;
4873}
4874
4875static int stv090x_set_gpio(struct dvb_frontend *fe, u8 gpio, u8 dir,
4876                            u8 value, u8 xor_value)
4877{
4878        struct stv090x_state *state = fe->demodulator_priv;
4879        u8 reg = 0;
4880
4881        STV090x_SETFIELD(reg, GPIOx_OPD_FIELD, dir);
4882        STV090x_SETFIELD(reg, GPIOx_CONFIG_FIELD, value);
4883        STV090x_SETFIELD(reg, GPIOx_XOR_FIELD, xor_value);
4884
4885        return stv090x_write_reg(state, STV090x_GPIOxCFG(gpio), reg);
4886}
4887
4888static struct dvb_frontend_ops stv090x_ops = {
4889        .delsys = { SYS_DVBS, SYS_DVBS2, SYS_DSS },
4890        .info = {
4891                .name                   = "STV090x Multistandard",
4892                .frequency_min          = 950000,
4893                .frequency_max          = 2150000,
4894                .frequency_stepsize     = 0,
4895                .frequency_tolerance    = 0,
4896                .symbol_rate_min        = 1000000,
4897                .symbol_rate_max        = 45000000,
4898                .caps                   = FE_CAN_INVERSION_AUTO |
4899                                          FE_CAN_FEC_AUTO       |
4900                                          FE_CAN_QPSK           |
4901                                          FE_CAN_2G_MODULATION
4902        },
4903
4904        .release                        = stv090x_release,
4905        .init                           = stv090x_init,
4906
4907        .sleep                          = stv090x_sleep,
4908        .get_frontend_algo              = stv090x_frontend_algo,
4909
4910        .diseqc_send_master_cmd         = stv090x_send_diseqc_msg,
4911        .diseqc_send_burst              = stv090x_send_diseqc_burst,
4912        .diseqc_recv_slave_reply        = stv090x_recv_slave_reply,
4913        .set_tone                       = stv090x_set_tone,
4914
4915        .search                         = stv090x_search,
4916        .read_status                    = stv090x_read_status,
4917        .read_ber                       = stv090x_read_per,
4918        .read_signal_strength           = stv090x_read_signal_strength,
4919        .read_snr                       = stv090x_read_cnr,
4920};
4921
4922
4923struct dvb_frontend *stv090x_attach(struct stv090x_config *config,
4924                                    struct i2c_adapter *i2c,
4925                                    enum stv090x_demodulator demod)
4926{
4927        struct stv090x_state *state = NULL;
4928        struct stv090x_dev *temp_int;
4929
4930        state = kzalloc(sizeof (struct stv090x_state), GFP_KERNEL);
4931        if (state == NULL)
4932                goto error;
4933
4934        state->verbose                          = &verbose;
4935        state->config                           = config;
4936        state->i2c                              = i2c;
4937        state->frontend.ops                     = stv090x_ops;
4938        state->frontend.demodulator_priv        = state;
4939        state->demod                            = demod;
4940        state->demod_mode                       = config->demod_mode; /* Single or Dual mode */
4941        state->device                           = config->device;
4942        state->rolloff                          = STV090x_RO_35; /* default */
4943
4944        temp_int = find_dev(state->i2c,
4945                                state->config->address);
4946
4947        if ((temp_int != NULL) && (state->demod_mode == STV090x_DUAL)) {
4948                state->internal = temp_int->internal;
4949                state->internal->num_used++;
4950                dprintk(FE_INFO, 1, "Found Internal Structure!");
4951        } else {
4952                state->internal = kmalloc(sizeof(struct stv090x_internal),
4953                                          GFP_KERNEL);
4954                if (!state->internal)
4955                        goto error;
4956                temp_int = append_internal(state->internal);
4957                if (!temp_int) {
4958                        kfree(state->internal);
4959                        goto error;
4960                }
4961                state->internal->num_used = 1;
4962                state->internal->mclk = 0;
4963                state->internal->dev_ver = 0;
4964                state->internal->i2c_adap = state->i2c;
4965                state->internal->i2c_addr = state->config->address;
4966                dprintk(FE_INFO, 1, "Create New Internal Structure!");
4967
4968                mutex_init(&state->internal->demod_lock);
4969                mutex_init(&state->internal->tuner_lock);
4970
4971                if (stv090x_setup(&state->frontend) < 0) {
4972                        dprintk(FE_ERROR, 1, "Error setting up device");
4973                        goto err_remove;
4974                }
4975        }
4976
4977        if (state->internal->dev_ver >= 0x30)
4978                state->frontend.ops.info.caps |= FE_CAN_MULTISTREAM;
4979
4980        /* workaround for stuck DiSEqC output */
4981        if (config->diseqc_envelope_mode)
4982                stv090x_send_diseqc_burst(&state->frontend, SEC_MINI_A);
4983
4984        config->set_gpio = stv090x_set_gpio;
4985
4986        dprintk(FE_ERROR, 1, "Attaching %s demodulator(%d) Cut=0x%02x",
4987               state->device == STV0900 ? "STV0900" : "STV0903",
4988               demod,
4989               state->internal->dev_ver);
4990
4991        return &state->frontend;
4992
4993err_remove:
4994        remove_dev(state->internal);
4995        kfree(state->internal);
4996error:
4997        kfree(state);
4998        return NULL;
4999}
5000EXPORT_SYMBOL(stv090x_attach);
5001MODULE_PARM_DESC(verbose, "Set Verbosity level");
5002MODULE_AUTHOR("Manu Abraham");
5003MODULE_DESCRIPTION("STV090x Multi-Std Broadcast frontend");
5004MODULE_LICENSE("GPL");
5005