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