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 <media/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        u8 tmp = data; /* see gcc.gnu.org/bugzilla/show_bug.cgi?id=81715 */
 759
 760        return stv090x_write_regs(state, reg, &tmp, 1);
 761}
 762
 763static int stv090x_i2c_gate_ctrl(struct stv090x_state *state, int enable)
 764{
 765        u32 reg;
 766
 767        /*
 768         * NOTE! A lock is used as a FSM to control the state in which
 769         * access is serialized between two tuners on the same demod.
 770         * This has nothing to do with a lock to protect a critical section
 771         * which may in some other cases be confused with protecting I/O
 772         * access to the demodulator gate.
 773         * In case of any error, the lock is unlocked and exit within the
 774         * relevant operations themselves.
 775         */
 776        if (enable) {
 777                if (state->config->tuner_i2c_lock)
 778                        state->config->tuner_i2c_lock(&state->frontend, 1);
 779                else
 780                        mutex_lock(&state->internal->tuner_lock);
 781        }
 782
 783        reg = STV090x_READ_DEMOD(state, I2CRPT);
 784        if (enable) {
 785                dprintk(FE_DEBUG, 1, "Enable Gate");
 786                STV090x_SETFIELD_Px(reg, I2CT_ON_FIELD, 1);
 787                if (STV090x_WRITE_DEMOD(state, I2CRPT, reg) < 0)
 788                        goto err;
 789
 790        } else {
 791                dprintk(FE_DEBUG, 1, "Disable Gate");
 792                STV090x_SETFIELD_Px(reg, I2CT_ON_FIELD, 0);
 793                if ((STV090x_WRITE_DEMOD(state, I2CRPT, reg)) < 0)
 794                        goto err;
 795        }
 796
 797        if (!enable) {
 798                if (state->config->tuner_i2c_lock)
 799                        state->config->tuner_i2c_lock(&state->frontend, 0);
 800                else
 801                        mutex_unlock(&state->internal->tuner_lock);
 802        }
 803
 804        return 0;
 805err:
 806        dprintk(FE_ERROR, 1, "I/O error");
 807        if (state->config->tuner_i2c_lock)
 808                state->config->tuner_i2c_lock(&state->frontend, 0);
 809        else
 810                mutex_unlock(&state->internal->tuner_lock);
 811        return -1;
 812}
 813
 814static void stv090x_get_lock_tmg(struct stv090x_state *state)
 815{
 816        switch (state->algo) {
 817        case STV090x_BLIND_SEARCH:
 818                dprintk(FE_DEBUG, 1, "Blind Search");
 819                if (state->srate <= 1500000) {  /*10Msps< SR <=15Msps*/
 820                        state->DemodTimeout = 1500;
 821                        state->FecTimeout = 400;
 822                } else if (state->srate <= 5000000) {  /*10Msps< SR <=15Msps*/
 823                        state->DemodTimeout = 1000;
 824                        state->FecTimeout = 300;
 825                } else {  /*SR >20Msps*/
 826                        state->DemodTimeout = 700;
 827                        state->FecTimeout = 100;
 828                }
 829                break;
 830
 831        case STV090x_COLD_SEARCH:
 832        case STV090x_WARM_SEARCH:
 833        default:
 834                dprintk(FE_DEBUG, 1, "Normal Search");
 835                if (state->srate <= 1000000) {  /*SR <=1Msps*/
 836                        state->DemodTimeout = 4500;
 837                        state->FecTimeout = 1700;
 838                } else if (state->srate <= 2000000) { /*1Msps < SR <= 2Msps */
 839                        state->DemodTimeout = 2500;
 840                        state->FecTimeout = 1100;
 841                } else if (state->srate <= 5000000) { /*2Msps < SR <= 5Msps */
 842                        state->DemodTimeout = 1000;
 843                        state->FecTimeout = 550;
 844                } else if (state->srate <= 10000000) { /*5Msps < SR <= 10Msps */
 845                        state->DemodTimeout = 700;
 846                        state->FecTimeout = 250;
 847                } else if (state->srate <= 20000000) { /*10Msps < SR <= 20Msps */
 848                        state->DemodTimeout = 400;
 849                        state->FecTimeout = 130;
 850                } else {   /*SR >20Msps*/
 851                        state->DemodTimeout = 300;
 852                        state->FecTimeout = 100;
 853                }
 854                break;
 855        }
 856
 857        if (state->algo == STV090x_WARM_SEARCH)
 858                state->DemodTimeout /= 2;
 859}
 860
 861static int stv090x_set_srate(struct stv090x_state *state, u32 srate)
 862{
 863        u32 sym;
 864
 865        if (srate > 60000000) {
 866                sym  = (srate << 4); /* SR * 2^16 / master_clk */
 867                sym /= (state->internal->mclk >> 12);
 868        } else if (srate > 6000000) {
 869                sym  = (srate << 6);
 870                sym /= (state->internal->mclk >> 10);
 871        } else {
 872                sym  = (srate << 9);
 873                sym /= (state->internal->mclk >> 7);
 874        }
 875
 876        if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0x7f) < 0) /* MSB */
 877                goto err;
 878        if (STV090x_WRITE_DEMOD(state, SFRINIT0, (sym & 0xff)) < 0) /* LSB */
 879                goto err;
 880
 881        return 0;
 882err:
 883        dprintk(FE_ERROR, 1, "I/O error");
 884        return -1;
 885}
 886
 887static int stv090x_set_max_srate(struct stv090x_state *state, u32 clk, u32 srate)
 888{
 889        u32 sym;
 890
 891        srate = 105 * (srate / 100);
 892        if (srate > 60000000) {
 893                sym  = (srate << 4); /* SR * 2^16 / master_clk */
 894                sym /= (state->internal->mclk >> 12);
 895        } else if (srate > 6000000) {
 896                sym  = (srate << 6);
 897                sym /= (state->internal->mclk >> 10);
 898        } else {
 899                sym  = (srate << 9);
 900                sym /= (state->internal->mclk >> 7);
 901        }
 902
 903        if (sym < 0x7fff) {
 904                if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0) /* MSB */
 905                        goto err;
 906                if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0) /* LSB */
 907                        goto err;
 908        } else {
 909                if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x7f) < 0) /* MSB */
 910                        goto err;
 911                if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xff) < 0) /* LSB */
 912                        goto err;
 913        }
 914
 915        return 0;
 916err:
 917        dprintk(FE_ERROR, 1, "I/O error");
 918        return -1;
 919}
 920
 921static int stv090x_set_min_srate(struct stv090x_state *state, u32 clk, u32 srate)
 922{
 923        u32 sym;
 924
 925        srate = 95 * (srate / 100);
 926        if (srate > 60000000) {
 927                sym  = (srate << 4); /* SR * 2^16 / master_clk */
 928                sym /= (state->internal->mclk >> 12);
 929        } else if (srate > 6000000) {
 930                sym  = (srate << 6);
 931                sym /= (state->internal->mclk >> 10);
 932        } else {
 933                sym  = (srate << 9);
 934                sym /= (state->internal->mclk >> 7);
 935        }
 936
 937        if (STV090x_WRITE_DEMOD(state, SFRLOW1, ((sym >> 8) & 0x7f)) < 0) /* MSB */
 938                goto err;
 939        if (STV090x_WRITE_DEMOD(state, SFRLOW0, (sym & 0xff)) < 0) /* LSB */
 940                goto err;
 941        return 0;
 942err:
 943        dprintk(FE_ERROR, 1, "I/O error");
 944        return -1;
 945}
 946
 947static u32 stv090x_car_width(u32 srate, enum stv090x_rolloff rolloff)
 948{
 949        u32 ro;
 950
 951        switch (rolloff) {
 952        case STV090x_RO_20:
 953                ro = 20;
 954                break;
 955        case STV090x_RO_25:
 956                ro = 25;
 957                break;
 958        case STV090x_RO_35:
 959        default:
 960                ro = 35;
 961                break;
 962        }
 963
 964        return srate + (srate * ro) / 100;
 965}
 966
 967static int stv090x_set_vit_thacq(struct stv090x_state *state)
 968{
 969        if (STV090x_WRITE_DEMOD(state, VTH12, 0x96) < 0)
 970                goto err;
 971        if (STV090x_WRITE_DEMOD(state, VTH23, 0x64) < 0)
 972                goto err;
 973        if (STV090x_WRITE_DEMOD(state, VTH34, 0x36) < 0)
 974                goto err;
 975        if (STV090x_WRITE_DEMOD(state, VTH56, 0x23) < 0)
 976                goto err;
 977        if (STV090x_WRITE_DEMOD(state, VTH67, 0x1e) < 0)
 978                goto err;
 979        if (STV090x_WRITE_DEMOD(state, VTH78, 0x19) < 0)
 980                goto err;
 981        return 0;
 982err:
 983        dprintk(FE_ERROR, 1, "I/O error");
 984        return -1;
 985}
 986
 987static int stv090x_set_vit_thtracq(struct stv090x_state *state)
 988{
 989        if (STV090x_WRITE_DEMOD(state, VTH12, 0xd0) < 0)
 990                goto err;
 991        if (STV090x_WRITE_DEMOD(state, VTH23, 0x7d) < 0)
 992                goto err;
 993        if (STV090x_WRITE_DEMOD(state, VTH34, 0x53) < 0)
 994                goto err;
 995        if (STV090x_WRITE_DEMOD(state, VTH56, 0x2f) < 0)
 996                goto err;
 997        if (STV090x_WRITE_DEMOD(state, VTH67, 0x24) < 0)
 998                goto err;
 999        if (STV090x_WRITE_DEMOD(state, VTH78, 0x1f) < 0)
1000                goto err;
1001        return 0;
1002err:
1003        dprintk(FE_ERROR, 1, "I/O error");
1004        return -1;
1005}
1006
1007static int stv090x_set_viterbi(struct stv090x_state *state)
1008{
1009        switch (state->search_mode) {
1010        case STV090x_SEARCH_AUTO:
1011                if (STV090x_WRITE_DEMOD(state, FECM, 0x10) < 0) /* DVB-S and DVB-S2 */
1012                        goto err;
1013                if (STV090x_WRITE_DEMOD(state, PRVIT, 0x3f) < 0) /* all puncture rate */
1014                        goto err;
1015                break;
1016        case STV090x_SEARCH_DVBS1:
1017                if (STV090x_WRITE_DEMOD(state, FECM, 0x00) < 0) /* disable DSS */
1018                        goto err;
1019                switch (state->fec) {
1020                case STV090x_PR12:
1021                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x01) < 0)
1022                                goto err;
1023                        break;
1024
1025                case STV090x_PR23:
1026                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x02) < 0)
1027                                goto err;
1028                        break;
1029
1030                case STV090x_PR34:
1031                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x04) < 0)
1032                                goto err;
1033                        break;
1034
1035                case STV090x_PR56:
1036                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x08) < 0)
1037                                goto err;
1038                        break;
1039
1040                case STV090x_PR78:
1041                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x20) < 0)
1042                                goto err;
1043                        break;
1044
1045                default:
1046                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x2f) < 0) /* all */
1047                                goto err;
1048                        break;
1049                }
1050                break;
1051        case STV090x_SEARCH_DSS:
1052                if (STV090x_WRITE_DEMOD(state, FECM, 0x80) < 0)
1053                        goto err;
1054                switch (state->fec) {
1055                case STV090x_PR12:
1056                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x01) < 0)
1057                                goto err;
1058                        break;
1059
1060                case STV090x_PR23:
1061                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x02) < 0)
1062                                goto err;
1063                        break;
1064
1065                case STV090x_PR67:
1066                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x10) < 0)
1067                                goto err;
1068                        break;
1069
1070                default:
1071                        if (STV090x_WRITE_DEMOD(state, PRVIT, 0x13) < 0) /* 1/2, 2/3, 6/7 */
1072                                goto err;
1073                        break;
1074                }
1075                break;
1076        default:
1077                break;
1078        }
1079        return 0;
1080err:
1081        dprintk(FE_ERROR, 1, "I/O error");
1082        return -1;
1083}
1084
1085static int stv090x_stop_modcod(struct stv090x_state *state)
1086{
1087        if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1088                goto err;
1089        if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xff) < 0)
1090                goto err;
1091        if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xff) < 0)
1092                goto err;
1093        if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xff) < 0)
1094                goto err;
1095        if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xff) < 0)
1096                goto err;
1097        if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xff) < 0)
1098                goto err;
1099        if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xff) < 0)
1100                goto err;
1101        if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xff) < 0)
1102                goto err;
1103        if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xff) < 0)
1104                goto err;
1105        if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xff) < 0)
1106                goto err;
1107        if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xff) < 0)
1108                goto err;
1109        if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xff) < 0)
1110                goto err;
1111        if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xff) < 0)
1112                goto err;
1113        if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xff) < 0)
1114                goto err;
1115        if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xff) < 0)
1116                goto err;
1117        if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xff) < 0)
1118                goto err;
1119        return 0;
1120err:
1121        dprintk(FE_ERROR, 1, "I/O error");
1122        return -1;
1123}
1124
1125static int stv090x_activate_modcod(struct stv090x_state *state)
1126{
1127        if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1128                goto err;
1129        if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xfc) < 0)
1130                goto err;
1131        if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xcc) < 0)
1132                goto err;
1133        if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xcc) < 0)
1134                goto err;
1135        if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xcc) < 0)
1136                goto err;
1137        if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xcc) < 0)
1138                goto err;
1139        if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xcc) < 0)
1140                goto err;
1141        if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xcc) < 0)
1142                goto err;
1143        if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xcc) < 0)
1144                goto err;
1145        if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xcc) < 0)
1146                goto err;
1147        if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xcc) < 0)
1148                goto err;
1149        if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xcc) < 0)
1150                goto err;
1151        if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xcc) < 0)
1152                goto err;
1153        if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xcc) < 0)
1154                goto err;
1155        if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xcc) < 0)
1156                goto err;
1157        if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xcf) < 0)
1158                goto err;
1159
1160        return 0;
1161err:
1162        dprintk(FE_ERROR, 1, "I/O error");
1163        return -1;
1164}
1165
1166static int stv090x_activate_modcod_single(struct stv090x_state *state)
1167{
1168
1169        if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1170                goto err;
1171        if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xf0) < 0)
1172                goto err;
1173        if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0x00) < 0)
1174                goto err;
1175        if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0x00) < 0)
1176                goto err;
1177        if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0x00) < 0)
1178                goto err;
1179        if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0x00) < 0)
1180                goto err;
1181        if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0x00) < 0)
1182                goto err;
1183        if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0x00) < 0)
1184                goto err;
1185        if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0x00) < 0)
1186                goto err;
1187        if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0x00) < 0)
1188                goto err;
1189        if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0x00) < 0)
1190                goto err;
1191        if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0x00) < 0)
1192                goto err;
1193        if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0x00) < 0)
1194                goto err;
1195        if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0x00) < 0)
1196                goto err;
1197        if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0x00) < 0)
1198                goto err;
1199        if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0x0f) < 0)
1200                goto err;
1201
1202        return 0;
1203
1204err:
1205        dprintk(FE_ERROR, 1, "I/O error");
1206        return -1;
1207}
1208
1209static int stv090x_vitclk_ctl(struct stv090x_state *state, int enable)
1210{
1211        u32 reg;
1212
1213        switch (state->demod) {
1214        case STV090x_DEMODULATOR_0:
1215                mutex_lock(&state->internal->demod_lock);
1216                reg = stv090x_read_reg(state, STV090x_STOPCLK2);
1217                STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, enable);
1218                if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
1219                        goto err;
1220                mutex_unlock(&state->internal->demod_lock);
1221                break;
1222
1223        case STV090x_DEMODULATOR_1:
1224                mutex_lock(&state->internal->demod_lock);
1225                reg = stv090x_read_reg(state, STV090x_STOPCLK2);
1226                STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, enable);
1227                if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
1228                        goto err;
1229                mutex_unlock(&state->internal->demod_lock);
1230                break;
1231
1232        default:
1233                dprintk(FE_ERROR, 1, "Wrong demodulator!");
1234                break;
1235        }
1236        return 0;
1237err:
1238        mutex_unlock(&state->internal->demod_lock);
1239        dprintk(FE_ERROR, 1, "I/O error");
1240        return -1;
1241}
1242
1243static int stv090x_dvbs_track_crl(struct stv090x_state *state)
1244{
1245        if (state->internal->dev_ver >= 0x30) {
1246                /* Set ACLC BCLC optimised value vs SR */
1247                if (state->srate >= 15000000) {
1248                        if (STV090x_WRITE_DEMOD(state, ACLC, 0x2b) < 0)
1249                                goto err;
1250                        if (STV090x_WRITE_DEMOD(state, BCLC, 0x1a) < 0)
1251                                goto err;
1252                } else if ((state->srate >= 7000000) && (15000000 > state->srate)) {
1253                        if (STV090x_WRITE_DEMOD(state, ACLC, 0x0c) < 0)
1254                                goto err;
1255                        if (STV090x_WRITE_DEMOD(state, BCLC, 0x1b) < 0)
1256                                goto err;
1257                } else if (state->srate < 7000000) {
1258                        if (STV090x_WRITE_DEMOD(state, ACLC, 0x2c) < 0)
1259                                goto err;
1260                        if (STV090x_WRITE_DEMOD(state, BCLC, 0x1c) < 0)
1261                                goto err;
1262                }
1263
1264        } else {
1265                /* Cut 2.0 */
1266                if (STV090x_WRITE_DEMOD(state, ACLC, 0x1a) < 0)
1267                        goto err;
1268                if (STV090x_WRITE_DEMOD(state, BCLC, 0x09) < 0)
1269                        goto err;
1270        }
1271        return 0;
1272err:
1273        dprintk(FE_ERROR, 1, "I/O error");
1274        return -1;
1275}
1276
1277static int stv090x_delivery_search(struct stv090x_state *state)
1278{
1279        u32 reg;
1280
1281        switch (state->search_mode) {
1282        case STV090x_SEARCH_DVBS1:
1283        case STV090x_SEARCH_DSS:
1284                reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1285                STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1286                STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1287                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1288                        goto err;
1289
1290                /* Activate Viterbi decoder in legacy search,
1291                 * do not use FRESVIT1, might impact VITERBI2
1292                 */
1293                if (stv090x_vitclk_ctl(state, 0) < 0)
1294                        goto err;
1295
1296                if (stv090x_dvbs_track_crl(state) < 0)
1297                        goto err;
1298
1299                if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x22) < 0) /* disable DVB-S2 */
1300                        goto err;
1301
1302                if (stv090x_set_vit_thacq(state) < 0)
1303                        goto err;
1304                if (stv090x_set_viterbi(state) < 0)
1305                        goto err;
1306                break;
1307
1308        case STV090x_SEARCH_DVBS2:
1309                reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1310                STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
1311                STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1312                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1313                        goto err;
1314                STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1315                STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
1316                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1317                        goto err;
1318
1319                if (stv090x_vitclk_ctl(state, 1) < 0)
1320                        goto err;
1321
1322                if (STV090x_WRITE_DEMOD(state, ACLC, 0x1a) < 0) /* stop DVB-S CR loop */
1323                        goto err;
1324                if (STV090x_WRITE_DEMOD(state, BCLC, 0x09) < 0)
1325                        goto err;
1326
1327                if (state->internal->dev_ver <= 0x20) {
1328                        /* enable S2 carrier loop */
1329                        if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x26) < 0)
1330                                goto err;
1331                } else {
1332                        /* > Cut 3: Stop carrier 3 */
1333                        if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x66) < 0)
1334                                goto err;
1335                }
1336
1337                if (state->demod_mode != STV090x_SINGLE) {
1338                        /* Cut 2: enable link during search */
1339                        if (stv090x_activate_modcod(state) < 0)
1340                                goto err;
1341                } else {
1342                        /* Single demodulator
1343                         * Authorize SHORT and LONG frames,
1344                         * QPSK, 8PSK, 16APSK and 32APSK
1345                         */
1346                        if (stv090x_activate_modcod_single(state) < 0)
1347                                goto err;
1348                }
1349
1350                if (stv090x_set_vit_thtracq(state) < 0)
1351                        goto err;
1352                break;
1353
1354        case STV090x_SEARCH_AUTO:
1355        default:
1356                /* enable DVB-S2 and DVB-S2 in Auto MODE */
1357                reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1358                STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
1359                STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1360                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1361                        goto err;
1362                STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1363                STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
1364                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1365                        goto err;
1366
1367                if (stv090x_vitclk_ctl(state, 0) < 0)
1368                        goto err;
1369
1370                if (stv090x_dvbs_track_crl(state) < 0)
1371                        goto err;
1372
1373                if (state->internal->dev_ver <= 0x20) {
1374                        /* enable S2 carrier loop */
1375                        if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x26) < 0)
1376                                goto err;
1377                } else {
1378                        /* > Cut 3: Stop carrier 3 */
1379                        if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x66) < 0)
1380                                goto err;
1381                }
1382
1383                if (state->demod_mode != STV090x_SINGLE) {
1384                        /* Cut 2: enable link during search */
1385                        if (stv090x_activate_modcod(state) < 0)
1386                                goto err;
1387                } else {
1388                        /* Single demodulator
1389                         * Authorize SHORT and LONG frames,
1390                         * QPSK, 8PSK, 16APSK and 32APSK
1391                         */
1392                        if (stv090x_activate_modcod_single(state) < 0)
1393                                goto err;
1394                }
1395
1396                if (stv090x_set_vit_thacq(state) < 0)
1397                        goto err;
1398
1399                if (stv090x_set_viterbi(state) < 0)
1400                        goto err;
1401                break;
1402        }
1403        return 0;
1404err:
1405        dprintk(FE_ERROR, 1, "I/O error");
1406        return -1;
1407}
1408
1409static int stv090x_start_search(struct stv090x_state *state)
1410{
1411        u32 reg, freq_abs;
1412        s16 freq;
1413
1414        /* Reset demodulator */
1415        reg = STV090x_READ_DEMOD(state, DMDISTATE);
1416        STV090x_SETFIELD_Px(reg, I2C_DEMOD_MODE_FIELD, 0x1f);
1417        if (STV090x_WRITE_DEMOD(state, DMDISTATE, reg) < 0)
1418                goto err;
1419
1420        if (state->internal->dev_ver <= 0x20) {
1421                if (state->srate <= 5000000) {
1422                        if (STV090x_WRITE_DEMOD(state, CARCFG, 0x44) < 0)
1423                                goto err;
1424                        if (STV090x_WRITE_DEMOD(state, CFRUP1, 0x0f) < 0)
1425                                goto err;
1426                        if (STV090x_WRITE_DEMOD(state, CFRUP0, 0xff) < 0)
1427                                goto err;
1428                        if (STV090x_WRITE_DEMOD(state, CFRLOW1, 0xf0) < 0)
1429                                goto err;
1430                        if (STV090x_WRITE_DEMOD(state, CFRLOW0, 0x00) < 0)
1431                                goto err;
1432
1433                        /*enlarge the timing bandwidth for Low SR*/
1434                        if (STV090x_WRITE_DEMOD(state, RTCS2, 0x68) < 0)
1435                                goto err;
1436                } else {
1437                        /* If the symbol rate is >5 Msps
1438                        Set The carrier search up and low to auto mode */
1439                        if (STV090x_WRITE_DEMOD(state, CARCFG, 0xc4) < 0)
1440                                goto err;
1441                        /*reduce the timing bandwidth for high SR*/
1442                        if (STV090x_WRITE_DEMOD(state, RTCS2, 0x44) < 0)
1443                                goto err;
1444                }
1445        } else {
1446                /* >= Cut 3 */
1447                if (state->srate <= 5000000) {
1448                        /* enlarge the timing bandwidth for Low SR */
1449                        STV090x_WRITE_DEMOD(state, RTCS2, 0x68);
1450                } else {
1451                        /* reduce timing bandwidth for high SR */
1452                        STV090x_WRITE_DEMOD(state, RTCS2, 0x44);
1453                }
1454
1455                /* Set CFR min and max to manual mode */
1456                STV090x_WRITE_DEMOD(state, CARCFG, 0x46);
1457
1458                if (state->algo == STV090x_WARM_SEARCH) {
1459                        /* WARM Start
1460                         * CFR min = -1MHz,
1461                         * CFR max = +1MHz
1462                         */
1463                        freq_abs  = 1000 << 16;
1464                        freq_abs /= (state->internal->mclk / 1000);
1465                        freq      = (s16) freq_abs;
1466                } else {
1467                        /* COLD Start
1468                         * CFR min =- (SearchRange / 2 + 600KHz)
1469                         * CFR max = +(SearchRange / 2 + 600KHz)
1470                         * (600KHz for the tuner step size)
1471                         */
1472                        freq_abs  = (state->search_range / 2000) + 600;
1473                        freq_abs  = freq_abs << 16;
1474                        freq_abs /= (state->internal->mclk / 1000);
1475                        freq      = (s16) freq_abs;
1476                }
1477
1478                if (STV090x_WRITE_DEMOD(state, CFRUP1, MSB(freq)) < 0)
1479                        goto err;
1480                if (STV090x_WRITE_DEMOD(state, CFRUP0, LSB(freq)) < 0)
1481                        goto err;
1482
1483                freq *= -1;
1484
1485                if (STV090x_WRITE_DEMOD(state, CFRLOW1, MSB(freq)) < 0)
1486                        goto err;
1487                if (STV090x_WRITE_DEMOD(state, CFRLOW0, LSB(freq)) < 0)
1488                        goto err;
1489
1490        }
1491
1492        if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0) < 0)
1493                goto err;
1494        if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0) < 0)
1495                goto err;
1496
1497        if (state->internal->dev_ver >= 0x20) {
1498                if (STV090x_WRITE_DEMOD(state, EQUALCFG, 0x41) < 0)
1499                        goto err;
1500                if (STV090x_WRITE_DEMOD(state, FFECFG, 0x41) < 0)
1501                        goto err;
1502
1503                if ((state->search_mode == STV090x_SEARCH_DVBS1)        ||
1504                        (state->search_mode == STV090x_SEARCH_DSS)      ||
1505                        (state->search_mode == STV090x_SEARCH_AUTO)) {
1506
1507                        if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x82) < 0)
1508                                goto err;
1509                        if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x00) < 0)
1510                                goto err;
1511                }
1512        }
1513
1514        if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x00) < 0)
1515                goto err;
1516        if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0xe0) < 0)
1517                goto err;
1518        if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0xc0) < 0)
1519                goto err;
1520
1521        reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1522        STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0);
1523        STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1524        if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1525                goto err;
1526        reg = STV090x_READ_DEMOD(state, DMDCFG2);
1527        STV090x_SETFIELD_Px(reg, S1S2_SEQUENTIAL_FIELD, 0x0);
1528        if (STV090x_WRITE_DEMOD(state, DMDCFG2, reg) < 0)
1529                goto err;
1530
1531        if (STV090x_WRITE_DEMOD(state, RTC, 0x88) < 0)
1532                goto err;
1533
1534        if (state->internal->dev_ver >= 0x20) {
1535                /*Frequency offset detector setting*/
1536                if (state->srate < 2000000) {
1537                        if (state->internal->dev_ver <= 0x20) {
1538                                /* Cut 2 */
1539                                if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x39) < 0)
1540                                        goto err;
1541                        } else {
1542                                /* Cut 3 */
1543                                if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x89) < 0)
1544                                        goto err;
1545                        }
1546                        if (STV090x_WRITE_DEMOD(state, CARHDR, 0x40) < 0)
1547                                goto err;
1548                } else if (state->srate < 10000000) {
1549                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x4c) < 0)
1550                                goto err;
1551                        if (STV090x_WRITE_DEMOD(state, CARHDR, 0x20) < 0)
1552                                goto err;
1553                } else {
1554                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x4b) < 0)
1555                                goto err;
1556                        if (STV090x_WRITE_DEMOD(state, CARHDR, 0x20) < 0)
1557                                goto err;
1558                }
1559        } else {
1560                if (state->srate < 10000000) {
1561                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xef) < 0)
1562                                goto err;
1563                } else {
1564                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xed) < 0)
1565                                goto err;
1566                }
1567        }
1568
1569        switch (state->algo) {
1570        case STV090x_WARM_SEARCH:
1571                /* The symbol rate and the exact
1572                 * carrier Frequency are known
1573                 */
1574                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
1575                        goto err;
1576                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
1577                        goto err;
1578                break;
1579
1580        case STV090x_COLD_SEARCH:
1581                /* The symbol rate is known */
1582                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
1583                        goto err;
1584                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
1585                        goto err;
1586                break;
1587
1588        default:
1589                break;
1590        }
1591        return 0;
1592err:
1593        dprintk(FE_ERROR, 1, "I/O error");
1594        return -1;
1595}
1596
1597static int stv090x_get_agc2_min_level(struct stv090x_state *state)
1598{
1599        u32 agc2_min = 0xffff, agc2 = 0, freq_init, freq_step, reg;
1600        s32 i, j, steps, dir;
1601
1602        if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
1603                goto err;
1604        reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1605        STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0);
1606        STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1607        if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1608                goto err;
1609
1610        if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x83) < 0) /* SR = 65 Msps Max */
1611                goto err;
1612        if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xc0) < 0)
1613                goto err;
1614        if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x82) < 0) /* SR= 400 ksps Min */
1615                goto err;
1616        if (STV090x_WRITE_DEMOD(state, SFRLOW0, 0xa0) < 0)
1617                goto err;
1618        if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x00) < 0) /* stop acq @ coarse carrier state */
1619                goto err;
1620        if (stv090x_set_srate(state, 1000000) < 0)
1621                goto err;
1622
1623        steps  = state->search_range / 1000000;
1624        if (steps <= 0)
1625                steps = 1;
1626
1627        dir = 1;
1628        freq_step = (1000000 * 256) / (state->internal->mclk / 256);
1629        freq_init = 0;
1630
1631        for (i = 0; i < steps; i++) {
1632                if (dir > 0)
1633                        freq_init = freq_init + (freq_step * i);
1634                else
1635                        freq_init = freq_init - (freq_step * i);
1636
1637                dir *= -1;
1638
1639                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5c) < 0) /* Demod RESET */
1640                        goto err;
1641                if (STV090x_WRITE_DEMOD(state, CFRINIT1, (freq_init >> 8) & 0xff) < 0)
1642                        goto err;
1643                if (STV090x_WRITE_DEMOD(state, CFRINIT0, freq_init & 0xff) < 0)
1644                        goto err;
1645                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x58) < 0) /* Demod RESET */
1646                        goto err;
1647                msleep(10);
1648
1649                agc2 = 0;
1650                for (j = 0; j < 10; j++) {
1651                        agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
1652                                STV090x_READ_DEMOD(state, AGC2I0);
1653                }
1654                agc2 /= 10;
1655                if (agc2 < agc2_min)
1656                        agc2_min = agc2;
1657        }
1658
1659        return agc2_min;
1660err:
1661        dprintk(FE_ERROR, 1, "I/O error");
1662        return -1;
1663}
1664
1665static u32 stv090x_get_srate(struct stv090x_state *state, u32 clk)
1666{
1667        u8 r3, r2, r1, r0;
1668        s32 srate, int_1, int_2, tmp_1, tmp_2;
1669
1670        r3 = STV090x_READ_DEMOD(state, SFR3);
1671        r2 = STV090x_READ_DEMOD(state, SFR2);
1672        r1 = STV090x_READ_DEMOD(state, SFR1);
1673        r0 = STV090x_READ_DEMOD(state, SFR0);
1674
1675        srate = ((r3 << 24) | (r2 << 16) | (r1 <<  8) | r0);
1676
1677        int_1 = clk >> 16;
1678        int_2 = srate >> 16;
1679
1680        tmp_1 = clk % 0x10000;
1681        tmp_2 = srate % 0x10000;
1682
1683        srate = (int_1 * int_2) +
1684                ((int_1 * tmp_2) >> 16) +
1685                ((int_2 * tmp_1) >> 16);
1686
1687        return srate;
1688}
1689
1690static u32 stv090x_srate_srch_coarse(struct stv090x_state *state)
1691{
1692        struct dvb_frontend *fe = &state->frontend;
1693
1694        int tmg_lock = 0, i;
1695        s32 tmg_cpt = 0, dir = 1, steps, cur_step = 0, freq;
1696        u32 srate_coarse = 0, agc2 = 0, car_step = 1200, reg;
1697        u32 agc2th;
1698
1699        if (state->internal->dev_ver >= 0x30)
1700                agc2th = 0x2e00;
1701        else
1702                agc2th = 0x1f00;
1703
1704        reg = STV090x_READ_DEMOD(state, DMDISTATE);
1705        STV090x_SETFIELD_Px(reg, I2C_DEMOD_MODE_FIELD, 0x1f); /* Demod RESET */
1706        if (STV090x_WRITE_DEMOD(state, DMDISTATE, reg) < 0)
1707                goto err;
1708        if (STV090x_WRITE_DEMOD(state, TMGCFG, 0x12) < 0)
1709                goto err;
1710        if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc0) < 0)
1711                goto err;
1712        if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0xf0) < 0)
1713                goto err;
1714        if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0xe0) < 0)
1715                goto err;
1716        reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1717        STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 1);
1718        STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1719        if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1720                goto err;
1721
1722        if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x83) < 0)
1723                goto err;
1724        if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xc0) < 0)
1725                goto err;
1726        if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x82) < 0)
1727                goto err;
1728        if (STV090x_WRITE_DEMOD(state, SFRLOW0, 0xa0) < 0)
1729                goto err;
1730        if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x00) < 0)
1731                goto err;
1732        if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x50) < 0)
1733                goto err;
1734
1735        if (state->internal->dev_ver >= 0x30) {
1736                if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x99) < 0)
1737                        goto err;
1738                if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x98) < 0)
1739                        goto err;
1740
1741        } else if (state->internal->dev_ver >= 0x20) {
1742                if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x6a) < 0)
1743                        goto err;
1744                if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x95) < 0)
1745                        goto err;
1746        }
1747
1748        if (state->srate <= 2000000)
1749                car_step = 1000;
1750        else if (state->srate <= 5000000)
1751                car_step = 2000;
1752        else if (state->srate <= 12000000)
1753                car_step = 3000;
1754        else
1755                car_step = 5000;
1756
1757        steps  = -1 + ((state->search_range / 1000) / car_step);
1758        steps /= 2;
1759        steps  = (2 * steps) + 1;
1760        if (steps < 0)
1761                steps = 1;
1762        else if (steps > 10) {
1763                steps = 11;
1764                car_step = (state->search_range / 1000) / 10;
1765        }
1766        cur_step = 0;
1767        dir = 1;
1768        freq = state->frequency;
1769
1770        while ((!tmg_lock) && (cur_step < steps)) {
1771                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5f) < 0) /* Demod RESET */
1772                        goto err;
1773                if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0)
1774                        goto err;
1775                if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
1776                        goto err;
1777                if (STV090x_WRITE_DEMOD(state, SFRINIT1, 0x00) < 0)
1778                        goto err;
1779                if (STV090x_WRITE_DEMOD(state, SFRINIT0, 0x00) < 0)
1780                        goto err;
1781                /* trigger acquisition */
1782                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x40) < 0)
1783                        goto err;
1784                msleep(50);
1785                for (i = 0; i < 10; i++) {
1786                        reg = STV090x_READ_DEMOD(state, DSTATUS);
1787                        if (STV090x_GETFIELD_Px(reg, TMGLOCK_QUALITY_FIELD) >= 2)
1788                                tmg_cpt++;
1789                        agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
1790                                STV090x_READ_DEMOD(state, AGC2I0);
1791                }
1792                agc2 /= 10;
1793                srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1794                cur_step++;
1795                dir *= -1;
1796                if ((tmg_cpt >= 5) && (agc2 < agc2th) &&
1797                    (srate_coarse < 50000000) && (srate_coarse > 850000))
1798                        tmg_lock = 1;
1799                else if (cur_step < steps) {
1800                        if (dir > 0)
1801                                freq += cur_step * car_step;
1802                        else
1803                                freq -= cur_step * car_step;
1804
1805                        /* Setup tuner */
1806                        if (stv090x_i2c_gate_ctrl(state, 1) < 0)
1807                                goto err;
1808
1809                        if (state->config->tuner_set_frequency) {
1810                                if (state->config->tuner_set_frequency(fe, freq) < 0)
1811                                        goto err_gateoff;
1812                        }
1813
1814                        if (state->config->tuner_set_bandwidth) {
1815                                if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
1816                                        goto err_gateoff;
1817                        }
1818
1819                        if (stv090x_i2c_gate_ctrl(state, 0) < 0)
1820                                goto err;
1821
1822                        msleep(50);
1823
1824                        if (stv090x_i2c_gate_ctrl(state, 1) < 0)
1825                                goto err;
1826
1827                        if (state->config->tuner_get_status) {
1828                                if (state->config->tuner_get_status(fe, &reg) < 0)
1829                                        goto err_gateoff;
1830                        }
1831
1832                        if (reg)
1833                                dprintk(FE_DEBUG, 1, "Tuner phase locked");
1834                        else
1835                                dprintk(FE_DEBUG, 1, "Tuner unlocked");
1836
1837                        if (stv090x_i2c_gate_ctrl(state, 0) < 0)
1838                                goto err;
1839
1840                }
1841        }
1842        if (!tmg_lock)
1843                srate_coarse = 0;
1844        else
1845                srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1846
1847        return srate_coarse;
1848
1849err_gateoff:
1850        stv090x_i2c_gate_ctrl(state, 0);
1851err:
1852        dprintk(FE_ERROR, 1, "I/O error");
1853        return -1;
1854}
1855
1856static u32 stv090x_srate_srch_fine(struct stv090x_state *state)
1857{
1858        u32 srate_coarse, freq_coarse, sym, reg;
1859
1860        srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1861        freq_coarse  = STV090x_READ_DEMOD(state, CFR2) << 8;
1862        freq_coarse |= STV090x_READ_DEMOD(state, CFR1);
1863        sym = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1864
1865        if (sym < state->srate)
1866                srate_coarse = 0;
1867        else {
1868                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0) /* Demod RESET */
1869                        goto err;
1870                if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0)
1871                        goto err;
1872                if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0x20) < 0)
1873                        goto err;
1874                if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0x00) < 0)
1875                        goto err;
1876                if (STV090x_WRITE_DEMOD(state, TMGCFG, 0xd2) < 0)
1877                        goto err;
1878                reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1879                STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00);
1880                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1881                        goto err;
1882
1883                if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
1884                        goto err;
1885
1886                if (state->internal->dev_ver >= 0x30) {
1887                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x79) < 0)
1888                                goto err;
1889                } else if (state->internal->dev_ver >= 0x20) {
1890                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
1891                                goto err;
1892                }
1893
1894                if (srate_coarse > 3000000) {
1895                        sym  = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1896                        sym  = (sym / 1000) * 65536;
1897                        sym /= (state->internal->mclk / 1000);
1898                        if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0)
1899                                goto err;
1900                        if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0)
1901                                goto err;
1902                        sym  = 10 * (srate_coarse / 13); /* SFRLOW = SFR - 30% */
1903                        sym  = (sym / 1000) * 65536;
1904                        sym /= (state->internal->mclk / 1000);
1905                        if (STV090x_WRITE_DEMOD(state, SFRLOW1, (sym >> 8) & 0x7f) < 0)
1906                                goto err;
1907                        if (STV090x_WRITE_DEMOD(state, SFRLOW0, sym & 0xff) < 0)
1908                                goto err;
1909                        sym  = (srate_coarse / 1000) * 65536;
1910                        sym /= (state->internal->mclk / 1000);
1911                        if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0xff) < 0)
1912                                goto err;
1913                        if (STV090x_WRITE_DEMOD(state, SFRINIT0, sym & 0xff) < 0)
1914                                goto err;
1915                } else {
1916                        sym  = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1917                        sym  = (sym / 100) * 65536;
1918                        sym /= (state->internal->mclk / 100);
1919                        if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0)
1920                                goto err;
1921                        if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0)
1922                                goto err;
1923                        sym  = 10 * (srate_coarse / 14); /* SFRLOW = SFR - 30% */
1924                        sym  = (sym / 100) * 65536;
1925                        sym /= (state->internal->mclk / 100);
1926                        if (STV090x_WRITE_DEMOD(state, SFRLOW1, (sym >> 8) & 0x7f) < 0)
1927                                goto err;
1928                        if (STV090x_WRITE_DEMOD(state, SFRLOW0, sym & 0xff) < 0)
1929                                goto err;
1930                        sym  = (srate_coarse / 100) * 65536;
1931                        sym /= (state->internal->mclk / 100);
1932                        if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0xff) < 0)
1933                                goto err;
1934                        if (STV090x_WRITE_DEMOD(state, SFRINIT0, sym & 0xff) < 0)
1935                                goto err;
1936                }
1937                if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x20) < 0)
1938                        goto err;
1939                if (STV090x_WRITE_DEMOD(state, CFRINIT1, (freq_coarse >> 8) & 0xff) < 0)
1940                        goto err;
1941                if (STV090x_WRITE_DEMOD(state, CFRINIT0, freq_coarse & 0xff) < 0)
1942                        goto err;
1943                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0) /* trigger acquisition */
1944                        goto err;
1945        }
1946
1947        return srate_coarse;
1948
1949err:
1950        dprintk(FE_ERROR, 1, "I/O error");
1951        return -1;
1952}
1953
1954static int stv090x_get_dmdlock(struct stv090x_state *state, s32 timeout)
1955{
1956        s32 timer = 0, lock = 0;
1957        u32 reg;
1958        u8 stat;
1959
1960        while ((timer < timeout) && (!lock)) {
1961                reg = STV090x_READ_DEMOD(state, DMDSTATE);
1962                stat = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
1963
1964                switch (stat) {
1965                case 0: /* searching */
1966                case 1: /* first PLH detected */
1967                default:
1968                        dprintk(FE_DEBUG, 1, "Demodulator searching ..");
1969                        lock = 0;
1970                        break;
1971                case 2: /* DVB-S2 mode */
1972                case 3: /* DVB-S1/legacy mode */
1973                        reg = STV090x_READ_DEMOD(state, DSTATUS);
1974                        lock = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
1975                        break;
1976                }
1977
1978                if (!lock)
1979                        msleep(10);
1980                else
1981                        dprintk(FE_DEBUG, 1, "Demodulator acquired LOCK");
1982
1983                timer += 10;
1984        }
1985        return lock;
1986}
1987
1988static int stv090x_blind_search(struct stv090x_state *state)
1989{
1990        u32 agc2, reg, srate_coarse;
1991        s32 cpt_fail, agc2_ovflw, i;
1992        u8 k_ref, k_max, k_min;
1993        int coarse_fail = 0;
1994        int lock;
1995
1996        k_max = 110;
1997        k_min = 10;
1998
1999        agc2 = stv090x_get_agc2_min_level(state);
2000
2001        if (agc2 > STV090x_SEARCH_AGC2_TH(state->internal->dev_ver)) {
2002                lock = 0;
2003        } else {
2004
2005                if (state->internal->dev_ver <= 0x20) {
2006                        if (STV090x_WRITE_DEMOD(state, CARCFG, 0xc4) < 0)
2007                                goto err;
2008                } else {
2009                        /* > Cut 3 */
2010                        if (STV090x_WRITE_DEMOD(state, CARCFG, 0x06) < 0)
2011                                goto err;
2012                }
2013
2014                if (STV090x_WRITE_DEMOD(state, RTCS2, 0x44) < 0)
2015                        goto err;
2016
2017                if (state->internal->dev_ver >= 0x20) {
2018                        if (STV090x_WRITE_DEMOD(state, EQUALCFG, 0x41) < 0)
2019                                goto err;
2020                        if (STV090x_WRITE_DEMOD(state, FFECFG, 0x41) < 0)
2021                                goto err;
2022                        if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x82) < 0)
2023                                goto err;
2024                        if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x00) < 0) /* set viterbi hysteresis */
2025                                goto err;
2026                }
2027
2028                k_ref = k_max;
2029                do {
2030                        if (STV090x_WRITE_DEMOD(state, KREFTMG, k_ref) < 0)
2031                                goto err;
2032                        if (stv090x_srate_srch_coarse(state) != 0) {
2033                                srate_coarse = stv090x_srate_srch_fine(state);
2034                                if (srate_coarse != 0) {
2035                                        stv090x_get_lock_tmg(state);
2036                                        lock = stv090x_get_dmdlock(state,
2037                                                        state->DemodTimeout);
2038                                } else {
2039                                        lock = 0;
2040                                }
2041                        } else {
2042                                cpt_fail = 0;
2043                                agc2_ovflw = 0;
2044                                for (i = 0; i < 10; i++) {
2045                                        agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
2046                                                STV090x_READ_DEMOD(state, AGC2I0);
2047                                        if (agc2 >= 0xff00)
2048                                                agc2_ovflw++;
2049                                        reg = STV090x_READ_DEMOD(state, DSTATUS2);
2050                                        if ((STV090x_GETFIELD_Px(reg, CFR_OVERFLOW_FIELD) == 0x01) &&
2051                                            (STV090x_GETFIELD_Px(reg, DEMOD_DELOCK_FIELD) == 0x01))
2052
2053                                                cpt_fail++;
2054                                }
2055                                if ((cpt_fail > 7) || (agc2_ovflw > 7))
2056                                        coarse_fail = 1;
2057
2058                                lock = 0;
2059                        }
2060                        k_ref -= 20;
2061                } while ((k_ref >= k_min) && (!lock) && (!coarse_fail));
2062        }
2063
2064        return lock;
2065
2066err:
2067        dprintk(FE_ERROR, 1, "I/O error");
2068        return -1;
2069}
2070
2071static int stv090x_chk_tmg(struct stv090x_state *state)
2072{
2073        u32 reg;
2074        s32 tmg_cpt = 0, i;
2075        u8 freq, tmg_thh, tmg_thl;
2076        int tmg_lock = 0;
2077
2078        freq = STV090x_READ_DEMOD(state, CARFREQ);
2079        tmg_thh = STV090x_READ_DEMOD(state, TMGTHRISE);
2080        tmg_thl = STV090x_READ_DEMOD(state, TMGTHFALL);
2081        if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0x20) < 0)
2082                goto err;
2083        if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0x00) < 0)
2084                goto err;
2085
2086        reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2087        STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00); /* stop carrier offset search */
2088        if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2089                goto err;
2090        if (STV090x_WRITE_DEMOD(state, RTC, 0x80) < 0)
2091                goto err;
2092
2093        if (STV090x_WRITE_DEMOD(state, RTCS2, 0x40) < 0)
2094                goto err;
2095        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x00) < 0)
2096                goto err;
2097
2098        if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0) /* set car ofset to 0 */
2099                goto err;
2100        if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
2101                goto err;
2102        if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x65) < 0)
2103                goto err;
2104
2105        if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0) /* trigger acquisition */
2106                goto err;
2107        msleep(10);
2108
2109        for (i = 0; i < 10; i++) {
2110                reg = STV090x_READ_DEMOD(state, DSTATUS);
2111                if (STV090x_GETFIELD_Px(reg, TMGLOCK_QUALITY_FIELD) >= 2)
2112                        tmg_cpt++;
2113                msleep(1);
2114        }
2115        if (tmg_cpt >= 3)
2116                tmg_lock = 1;
2117
2118        if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
2119                goto err;
2120        if (STV090x_WRITE_DEMOD(state, RTC, 0x88) < 0) /* DVB-S1 timing */
2121                goto err;
2122        if (STV090x_WRITE_DEMOD(state, RTCS2, 0x68) < 0) /* DVB-S2 timing */
2123                goto err;
2124
2125        if (STV090x_WRITE_DEMOD(state, CARFREQ, freq) < 0)
2126                goto err;
2127        if (STV090x_WRITE_DEMOD(state, TMGTHRISE, tmg_thh) < 0)
2128                goto err;
2129        if (STV090x_WRITE_DEMOD(state, TMGTHFALL, tmg_thl) < 0)
2130                goto err;
2131
2132        return  tmg_lock;
2133
2134err:
2135        dprintk(FE_ERROR, 1, "I/O error");
2136        return -1;
2137}
2138
2139static int stv090x_get_coldlock(struct stv090x_state *state, s32 timeout_dmd)
2140{
2141        struct dvb_frontend *fe = &state->frontend;
2142
2143        u32 reg;
2144        s32 car_step, steps, cur_step, dir, freq, timeout_lock;
2145        int lock;
2146
2147        if (state->srate >= 10000000)
2148                timeout_lock = timeout_dmd / 3;
2149        else
2150                timeout_lock = timeout_dmd / 2;
2151
2152        lock = stv090x_get_dmdlock(state, timeout_lock); /* cold start wait */
2153        if (lock)
2154                return lock;
2155
2156        if (state->srate >= 10000000) {
2157                if (stv090x_chk_tmg(state)) {
2158                        if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
2159                                goto err;
2160                        if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
2161                                goto err;
2162                        return stv090x_get_dmdlock(state, timeout_dmd);
2163                }
2164                return 0;
2165        }
2166
2167        if (state->srate <= 4000000)
2168                car_step = 1000;
2169        else if (state->srate <= 7000000)
2170                car_step = 2000;
2171        else if (state->srate <= 10000000)
2172                car_step = 3000;
2173        else
2174                car_step = 5000;
2175
2176        steps  = (state->search_range / 1000) / car_step;
2177        steps /= 2;
2178        steps  = 2 * (steps + 1);
2179        if (steps < 0)
2180                steps = 2;
2181        else if (steps > 12)
2182                steps = 12;
2183
2184        cur_step = 1;
2185        dir = 1;
2186
2187        freq = state->frequency;
2188        state->tuner_bw = stv090x_car_width(state->srate, state->rolloff) + state->srate;
2189        while ((cur_step <= steps) && (!lock)) {
2190                if (dir > 0)
2191                        freq += cur_step * car_step;
2192                else
2193                        freq -= cur_step * car_step;
2194
2195                /* Setup tuner */
2196                if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2197                        goto err;
2198
2199                if (state->config->tuner_set_frequency) {
2200                        if (state->config->tuner_set_frequency(fe, freq) < 0)
2201                                goto err_gateoff;
2202                }
2203
2204                if (state->config->tuner_set_bandwidth) {
2205                        if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
2206                                goto err_gateoff;
2207                }
2208
2209                if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2210                        goto err;
2211
2212                msleep(50);
2213
2214                if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2215                        goto err;
2216
2217                if (state->config->tuner_get_status) {
2218                        if (state->config->tuner_get_status(fe, &reg) < 0)
2219                                goto err_gateoff;
2220                        if (reg)
2221                                dprintk(FE_DEBUG, 1, "Tuner phase locked");
2222                        else
2223                                dprintk(FE_DEBUG, 1, "Tuner unlocked");
2224                }
2225
2226                if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2227                        goto err;
2228
2229                STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c);
2230                if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0)
2231                        goto err;
2232                if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
2233                        goto err;
2234                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
2235                        goto err;
2236                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
2237                        goto err;
2238                lock = stv090x_get_dmdlock(state, (timeout_dmd / 3));
2239
2240                dir *= -1;
2241                cur_step++;
2242        }
2243
2244        return lock;
2245
2246err_gateoff:
2247        stv090x_i2c_gate_ctrl(state, 0);
2248err:
2249        dprintk(FE_ERROR, 1, "I/O error");
2250        return -1;
2251}
2252
2253static int stv090x_get_loop_params(struct stv090x_state *state, s32 *freq_inc, s32 *timeout_sw, s32 *steps)
2254{
2255        s32 timeout, inc, steps_max, srate, car_max;
2256
2257        srate = state->srate;
2258        car_max = state->search_range / 1000;
2259        car_max += car_max / 10;
2260        car_max  = 65536 * (car_max / 2);
2261        car_max /= (state->internal->mclk / 1000);
2262
2263        if (car_max > 0x4000)
2264                car_max = 0x4000 ; /* maxcarrier should be<= +-1/4 Mclk */
2265
2266        inc  = srate;
2267        inc /= state->internal->mclk / 1000;
2268        inc *= 256;
2269        inc *= 256;
2270        inc /= 1000;
2271
2272        switch (state->search_mode) {
2273        case STV090x_SEARCH_DVBS1:
2274        case STV090x_SEARCH_DSS:
2275                inc *= 3; /* freq step = 3% of srate */
2276                timeout = 20;
2277                break;
2278
2279        case STV090x_SEARCH_DVBS2:
2280                inc *= 4;
2281                timeout = 25;
2282                break;
2283
2284        case STV090x_SEARCH_AUTO:
2285        default:
2286                inc *= 3;
2287                timeout = 25;
2288                break;
2289        }
2290        inc /= 100;
2291        if ((inc > car_max) || (inc < 0))
2292                inc = car_max / 2; /* increment <= 1/8 Mclk */
2293
2294        timeout *= 27500; /* 27.5 Msps reference */
2295        if (srate > 0)
2296                timeout /= (srate / 1000);
2297
2298        if ((timeout > 100) || (timeout < 0))
2299                timeout = 100;
2300
2301        steps_max = (car_max / inc) + 1; /* min steps = 3 */
2302        if ((steps_max > 100) || (steps_max < 0)) {
2303                steps_max = 100; /* max steps <= 100 */
2304                inc = car_max / steps_max;
2305        }
2306        *freq_inc = inc;
2307        *timeout_sw = timeout;
2308        *steps = steps_max;
2309
2310        return 0;
2311}
2312
2313static int stv090x_chk_signal(struct stv090x_state *state)
2314{
2315        s32 offst_car, agc2, car_max;
2316        int no_signal;
2317
2318        offst_car  = STV090x_READ_DEMOD(state, CFR2) << 8;
2319        offst_car |= STV090x_READ_DEMOD(state, CFR1);
2320        offst_car = comp2(offst_car, 16);
2321
2322        agc2  = STV090x_READ_DEMOD(state, AGC2I1) << 8;
2323        agc2 |= STV090x_READ_DEMOD(state, AGC2I0);
2324        car_max = state->search_range / 1000;
2325
2326        car_max += (car_max / 10); /* 10% margin */
2327        car_max  = (65536 * car_max / 2);
2328        car_max /= state->internal->mclk / 1000;
2329
2330        if (car_max > 0x4000)
2331                car_max = 0x4000;
2332
2333        if ((agc2 > 0x2000) || (offst_car > 2 * car_max) || (offst_car < -2 * car_max)) {
2334                no_signal = 1;
2335                dprintk(FE_DEBUG, 1, "No Signal");
2336        } else {
2337                no_signal = 0;
2338                dprintk(FE_DEBUG, 1, "Found Signal");
2339        }
2340
2341        return no_signal;
2342}
2343
2344static int stv090x_search_car_loop(struct stv090x_state *state, s32 inc, s32 timeout, int zigzag, s32 steps_max)
2345{
2346        int no_signal, lock = 0;
2347        s32 cpt_step = 0, offst_freq, car_max;
2348        u32 reg;
2349
2350        car_max  = state->search_range / 1000;
2351        car_max += (car_max / 10);
2352        car_max  = (65536 * car_max / 2);
2353        car_max /= (state->internal->mclk / 1000);
2354        if (car_max > 0x4000)
2355                car_max = 0x4000;
2356
2357        if (zigzag)
2358                offst_freq = 0;
2359        else
2360                offst_freq = -car_max + inc;
2361
2362        do {
2363                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c) < 0)
2364                        goto err;
2365                if (STV090x_WRITE_DEMOD(state, CFRINIT1, ((offst_freq / 256) & 0xff)) < 0)
2366                        goto err;
2367                if (STV090x_WRITE_DEMOD(state, CFRINIT0, offst_freq & 0xff) < 0)
2368                        goto err;
2369                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
2370                        goto err;
2371
2372                reg = STV090x_READ_DEMOD(state, PDELCTRL1);
2373                STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x1); /* stop DVB-S2 packet delin */
2374                if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
2375                        goto err;
2376
2377                if (zigzag) {
2378                        if (offst_freq >= 0)
2379                                offst_freq = -offst_freq - 2 * inc;
2380                        else
2381                                offst_freq = -offst_freq;
2382                } else {
2383                        offst_freq += 2 * inc;
2384                }
2385
2386                cpt_step++;
2387
2388                lock = stv090x_get_dmdlock(state, timeout);
2389                no_signal = stv090x_chk_signal(state);
2390
2391        } while ((!lock) &&
2392                 (!no_signal) &&
2393                  ((offst_freq - inc) < car_max) &&
2394                  ((offst_freq + inc) > -car_max) &&
2395                  (cpt_step < steps_max));
2396
2397        reg = STV090x_READ_DEMOD(state, PDELCTRL1);
2398        STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0);
2399        if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
2400                        goto err;
2401
2402        return lock;
2403err:
2404        dprintk(FE_ERROR, 1, "I/O error");
2405        return -1;
2406}
2407
2408static int stv090x_sw_algo(struct stv090x_state *state)
2409{
2410        int no_signal, zigzag, lock = 0;
2411        u32 reg;
2412
2413        s32 dvbs2_fly_wheel;
2414        s32 inc, timeout_step, trials, steps_max;
2415
2416        /* get params */
2417        stv090x_get_loop_params(state, &inc, &timeout_step, &steps_max);
2418
2419        switch (state->search_mode) {
2420        case STV090x_SEARCH_DVBS1:
2421        case STV090x_SEARCH_DSS:
2422                /* accelerate the frequency detector */
2423                if (state->internal->dev_ver >= 0x20) {
2424                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x3B) < 0)
2425                                goto err;
2426                }
2427
2428                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x49) < 0)
2429                        goto err;
2430                zigzag = 0;
2431                break;
2432
2433        case STV090x_SEARCH_DVBS2:
2434                if (state->internal->dev_ver >= 0x20) {
2435                        if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2436                                goto err;
2437                }
2438
2439                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x89) < 0)
2440                        goto err;
2441                zigzag = 1;
2442                break;
2443
2444        case STV090x_SEARCH_AUTO:
2445        default:
2446                /* accelerate the frequency detector */
2447                if (state->internal->dev_ver >= 0x20) {
2448                        if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x3b) < 0)
2449                                goto err;
2450                        if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2451                                goto err;
2452                }
2453
2454                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0xc9) < 0)
2455                        goto err;
2456                zigzag = 0;
2457                break;
2458        }
2459
2460        trials = 0;
2461        do {
2462                lock = stv090x_search_car_loop(state, inc, timeout_step, zigzag, steps_max);
2463                no_signal = stv090x_chk_signal(state);
2464                trials++;
2465
2466                /*run the SW search 2 times maximum*/
2467                if (lock || no_signal || (trials == 2)) {
2468                        /*Check if the demod is not losing lock in DVBS2*/
2469                        if (state->internal->dev_ver >= 0x20) {
2470                                if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
2471                                        goto err;
2472                                if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x9e) < 0)
2473                                        goto err;
2474                        }
2475
2476                        reg = STV090x_READ_DEMOD(state, DMDSTATE);
2477                        if ((lock) && (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == STV090x_DVBS2)) {
2478                                /*Check if the demod is not losing lock in DVBS2*/
2479                                msleep(timeout_step);
2480                                reg = STV090x_READ_DEMOD(state, DMDFLYW);
2481                                dvbs2_fly_wheel = STV090x_GETFIELD_Px(reg, FLYWHEEL_CPT_FIELD);
2482                                if (dvbs2_fly_wheel < 0xd) {     /*if correct frames is decrementing */
2483                                        msleep(timeout_step);
2484                                        reg = STV090x_READ_DEMOD(state, DMDFLYW);
2485                                        dvbs2_fly_wheel = STV090x_GETFIELD_Px(reg, FLYWHEEL_CPT_FIELD);
2486                                }
2487                                if (dvbs2_fly_wheel < 0xd) {
2488                                        /*FALSE lock, The demod is losing lock */
2489                                        lock = 0;
2490                                        if (trials < 2) {
2491                                                if (state->internal->dev_ver >= 0x20) {
2492                                                        if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2493                                                                goto err;
2494                                                }
2495
2496                                                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x89) < 0)
2497                                                        goto err;
2498                                        }
2499                                }
2500                        }
2501                }
2502        } while ((!lock) && (trials < 2) && (!no_signal));
2503
2504        return lock;
2505err:
2506        dprintk(FE_ERROR, 1, "I/O error");
2507        return -1;
2508}
2509
2510static enum stv090x_delsys stv090x_get_std(struct stv090x_state *state)
2511{
2512        u32 reg;
2513        enum stv090x_delsys delsys;
2514
2515        reg = STV090x_READ_DEMOD(state, DMDSTATE);
2516        if (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == 2)
2517                delsys = STV090x_DVBS2;
2518        else if (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == 3) {
2519                reg = STV090x_READ_DEMOD(state, FECM);
2520                if (STV090x_GETFIELD_Px(reg, DSS_DVB_FIELD) == 1)
2521                        delsys = STV090x_DSS;
2522                else
2523                        delsys = STV090x_DVBS1;
2524        } else {
2525                delsys = STV090x_ERROR;
2526        }
2527
2528        return delsys;
2529}
2530
2531/* in Hz */
2532static s32 stv090x_get_car_freq(struct stv090x_state *state, u32 mclk)
2533{
2534        s32 derot, int_1, int_2, tmp_1, tmp_2;
2535
2536        derot  = STV090x_READ_DEMOD(state, CFR2) << 16;
2537        derot |= STV090x_READ_DEMOD(state, CFR1) <<  8;
2538        derot |= STV090x_READ_DEMOD(state, CFR0);
2539
2540        derot = comp2(derot, 24);
2541        int_1 = mclk >> 12;
2542        int_2 = derot >> 12;
2543
2544        /* carrier_frequency = MasterClock * Reg / 2^24 */
2545        tmp_1 = mclk % 0x1000;
2546        tmp_2 = derot % 0x1000;
2547
2548        derot = (int_1 * int_2) +
2549                ((int_1 * tmp_2) >> 12) +
2550                ((int_2 * tmp_1) >> 12);
2551
2552        return derot;
2553}
2554
2555static int stv090x_get_viterbi(struct stv090x_state *state)
2556{
2557        u32 reg, rate;
2558
2559        reg = STV090x_READ_DEMOD(state, VITCURPUN);
2560        rate = STV090x_GETFIELD_Px(reg, VIT_CURPUN_FIELD);
2561
2562        switch (rate) {
2563        case 13:
2564                state->fec = STV090x_PR12;
2565                break;
2566
2567        case 18:
2568                state->fec = STV090x_PR23;
2569                break;
2570
2571        case 21:
2572                state->fec = STV090x_PR34;
2573                break;
2574
2575        case 24:
2576                state->fec = STV090x_PR56;
2577                break;
2578
2579        case 25:
2580                state->fec = STV090x_PR67;
2581                break;
2582
2583        case 26:
2584                state->fec = STV090x_PR78;
2585                break;
2586
2587        default:
2588                state->fec = STV090x_PRERR;
2589                break;
2590        }
2591
2592        return 0;
2593}
2594
2595static enum stv090x_signal_state stv090x_get_sig_params(struct stv090x_state *state)
2596{
2597        struct dvb_frontend *fe = &state->frontend;
2598
2599        u8 tmg;
2600        u32 reg;
2601        s32 i = 0, offst_freq;
2602
2603        msleep(5);
2604
2605        if (state->algo == STV090x_BLIND_SEARCH) {
2606                tmg = STV090x_READ_DEMOD(state, TMGREG2);
2607                STV090x_WRITE_DEMOD(state, SFRSTEP, 0x5c);
2608                while ((i <= 50) && (tmg != 0) && (tmg != 0xff)) {
2609                        tmg = STV090x_READ_DEMOD(state, TMGREG2);
2610                        msleep(5);
2611                        i += 5;
2612                }
2613        }
2614        state->delsys = stv090x_get_std(state);
2615
2616        if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2617                goto err;
2618
2619        if (state->config->tuner_get_frequency) {
2620                if (state->config->tuner_get_frequency(fe, &state->frequency) < 0)
2621                        goto err_gateoff;
2622        }
2623
2624        if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2625                goto err;
2626
2627        offst_freq = stv090x_get_car_freq(state, state->internal->mclk) / 1000;
2628        state->frequency += offst_freq;
2629
2630        if (stv090x_get_viterbi(state) < 0)
2631                goto err;
2632
2633        reg = STV090x_READ_DEMOD(state, DMDMODCOD);
2634        state->modcod = STV090x_GETFIELD_Px(reg, DEMOD_MODCOD_FIELD);
2635        state->pilots = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) & 0x01;
2636        state->frame_len = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) >> 1;
2637        reg = STV090x_READ_DEMOD(state, TMGOBS);
2638        state->rolloff = STV090x_GETFIELD_Px(reg, ROLLOFF_STATUS_FIELD);
2639        reg = STV090x_READ_DEMOD(state, FECM);
2640        state->inversion = STV090x_GETFIELD_Px(reg, IQINV_FIELD);
2641
2642        if ((state->algo == STV090x_BLIND_SEARCH) || (state->srate < 10000000)) {
2643
2644                if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2645                        goto err;
2646
2647                if (state->config->tuner_get_frequency) {
2648                        if (state->config->tuner_get_frequency(fe, &state->frequency) < 0)
2649                                goto err_gateoff;
2650                }
2651
2652                if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2653                        goto err;
2654
2655                if (abs(offst_freq) <= ((state->search_range / 2000) + 500))
2656                        return STV090x_RANGEOK;
2657                else if (abs(offst_freq) <= (stv090x_car_width(state->srate, state->rolloff) / 2000))
2658                        return STV090x_RANGEOK;
2659        } else {
2660                if (abs(offst_freq) <= ((state->search_range / 2000) + 500))
2661                        return STV090x_RANGEOK;
2662        }
2663
2664        return STV090x_OUTOFRANGE;
2665
2666err_gateoff:
2667        stv090x_i2c_gate_ctrl(state, 0);
2668err:
2669        dprintk(FE_ERROR, 1, "I/O error");
2670        return -1;
2671}
2672
2673static u32 stv090x_get_tmgoffst(struct stv090x_state *state, u32 srate)
2674{
2675        s32 offst_tmg;
2676
2677        offst_tmg  = STV090x_READ_DEMOD(state, TMGREG2) << 16;
2678        offst_tmg |= STV090x_READ_DEMOD(state, TMGREG1) <<  8;
2679        offst_tmg |= STV090x_READ_DEMOD(state, TMGREG0);
2680
2681        offst_tmg = comp2(offst_tmg, 24); /* 2's complement */
2682        if (!offst_tmg)
2683                offst_tmg = 1;
2684
2685        offst_tmg  = ((s32) srate * 10) / ((s32) 0x1000000 / offst_tmg);
2686        offst_tmg /= 320;
2687
2688        return offst_tmg;
2689}
2690
2691static u8 stv090x_optimize_carloop(struct stv090x_state *state, enum stv090x_modcod modcod, s32 pilots)
2692{
2693        u8 aclc = 0x29;
2694        s32 i;
2695        struct stv090x_long_frame_crloop *car_loop, *car_loop_qpsk_low, *car_loop_apsk_low;
2696
2697        if (state->internal->dev_ver == 0x20) {
2698                car_loop                = stv090x_s2_crl_cut20;
2699                car_loop_qpsk_low       = stv090x_s2_lowqpsk_crl_cut20;
2700                car_loop_apsk_low       = stv090x_s2_apsk_crl_cut20;
2701        } else {
2702                /* >= Cut 3 */
2703                car_loop                = stv090x_s2_crl_cut30;
2704                car_loop_qpsk_low       = stv090x_s2_lowqpsk_crl_cut30;
2705                car_loop_apsk_low       = stv090x_s2_apsk_crl_cut30;
2706        }
2707
2708        if (modcod < STV090x_QPSK_12) {
2709                i = 0;
2710                while ((i < 3) && (modcod != car_loop_qpsk_low[i].modcod))
2711                        i++;
2712
2713                if (i >= 3)
2714                        i = 2;
2715
2716        } else {
2717                i = 0;
2718                while ((i < 14) && (modcod != car_loop[i].modcod))
2719                        i++;
2720
2721                if (i >= 14) {
2722                        i = 0;
2723                        while ((i < 11) && (modcod != car_loop_apsk_low[i].modcod))
2724                                i++;
2725
2726                        if (i >= 11)
2727                                i = 10;
2728                }
2729        }
2730
2731        if (modcod <= STV090x_QPSK_25) {
2732                if (pilots) {
2733                        if (state->srate <= 3000000)
2734                                aclc = car_loop_qpsk_low[i].crl_pilots_on_2;
2735                        else if (state->srate <= 7000000)
2736                                aclc = car_loop_qpsk_low[i].crl_pilots_on_5;
2737                        else if (state->srate <= 15000000)
2738                                aclc = car_loop_qpsk_low[i].crl_pilots_on_10;
2739                        else if (state->srate <= 25000000)
2740                                aclc = car_loop_qpsk_low[i].crl_pilots_on_20;
2741                        else
2742                                aclc = car_loop_qpsk_low[i].crl_pilots_on_30;
2743                } else {
2744                        if (state->srate <= 3000000)
2745                                aclc = car_loop_qpsk_low[i].crl_pilots_off_2;
2746                        else if (state->srate <= 7000000)
2747                                aclc = car_loop_qpsk_low[i].crl_pilots_off_5;
2748                        else if (state->srate <= 15000000)
2749                                aclc = car_loop_qpsk_low[i].crl_pilots_off_10;
2750                        else if (state->srate <= 25000000)
2751                                aclc = car_loop_qpsk_low[i].crl_pilots_off_20;
2752                        else
2753                                aclc = car_loop_qpsk_low[i].crl_pilots_off_30;
2754                }
2755
2756        } else if (modcod <= STV090x_8PSK_910) {
2757                if (pilots) {
2758                        if (state->srate <= 3000000)
2759                                aclc = car_loop[i].crl_pilots_on_2;
2760                        else if (state->srate <= 7000000)
2761                                aclc = car_loop[i].crl_pilots_on_5;
2762                        else if (state->srate <= 15000000)
2763                                aclc = car_loop[i].crl_pilots_on_10;
2764                        else if (state->srate <= 25000000)
2765                                aclc = car_loop[i].crl_pilots_on_20;
2766                        else
2767                                aclc = car_loop[i].crl_pilots_on_30;
2768                } else {
2769                        if (state->srate <= 3000000)
2770                                aclc = car_loop[i].crl_pilots_off_2;
2771                        else if (state->srate <= 7000000)
2772                                aclc = car_loop[i].crl_pilots_off_5;
2773                        else if (state->srate <= 15000000)
2774                                aclc = car_loop[i].crl_pilots_off_10;
2775                        else if (state->srate <= 25000000)
2776                                aclc = car_loop[i].crl_pilots_off_20;
2777                        else
2778                                aclc = car_loop[i].crl_pilots_off_30;
2779                }
2780        } else { /* 16APSK and 32APSK */
2781                /*
2782                 * This should never happen in practice, except if
2783                 * something is really wrong at the car_loop table.
2784                 */
2785                if (i >= 11)
2786                        i = 10;
2787                if (state->srate <= 3000000)
2788                        aclc = car_loop_apsk_low[i].crl_pilots_on_2;
2789                else if (state->srate <= 7000000)
2790                        aclc = car_loop_apsk_low[i].crl_pilots_on_5;
2791                else if (state->srate <= 15000000)
2792                        aclc = car_loop_apsk_low[i].crl_pilots_on_10;
2793                else if (state->srate <= 25000000)
2794                        aclc = car_loop_apsk_low[i].crl_pilots_on_20;
2795                else
2796                        aclc = car_loop_apsk_low[i].crl_pilots_on_30;
2797        }
2798
2799        return aclc;
2800}
2801
2802static u8 stv090x_optimize_carloop_short(struct stv090x_state *state)
2803{
2804        struct stv090x_short_frame_crloop *short_crl = NULL;
2805        s32 index = 0;
2806        u8 aclc = 0x0b;
2807
2808        switch (state->modulation) {
2809        case STV090x_QPSK:
2810        default:
2811                index = 0;
2812                break;
2813        case STV090x_8PSK:
2814                index = 1;
2815                break;
2816        case STV090x_16APSK:
2817                index = 2;
2818                break;
2819        case STV090x_32APSK:
2820                index = 3;
2821                break;
2822        }
2823
2824        if (state->internal->dev_ver >= 0x30) {
2825                /* Cut 3.0 and up */
2826                short_crl = stv090x_s2_short_crl_cut30;
2827        } else {
2828                /* Cut 2.0 and up: we don't support cuts older than 2.0 */
2829                short_crl = stv090x_s2_short_crl_cut20;
2830        }
2831
2832        if (state->srate <= 3000000)
2833                aclc = short_crl[index].crl_2;
2834        else if (state->srate <= 7000000)
2835                aclc = short_crl[index].crl_5;
2836        else if (state->srate <= 15000000)
2837                aclc = short_crl[index].crl_10;
2838        else if (state->srate <= 25000000)
2839                aclc = short_crl[index].crl_20;
2840        else
2841                aclc = short_crl[index].crl_30;
2842
2843        return aclc;
2844}
2845
2846static int stv090x_optimize_track(struct stv090x_state *state)
2847{
2848        struct dvb_frontend *fe = &state->frontend;
2849
2850        enum stv090x_modcod modcod;
2851
2852        s32 srate, pilots, aclc, f_1, f_0, i = 0, blind_tune = 0;
2853        u32 reg;
2854
2855        srate  = stv090x_get_srate(state, state->internal->mclk);
2856        srate += stv090x_get_tmgoffst(state, srate);
2857
2858        switch (state->delsys) {
2859        case STV090x_DVBS1:
2860        case STV090x_DSS:
2861                if (state->search_mode == STV090x_SEARCH_AUTO) {
2862                        reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2863                        STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
2864                        STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
2865                        if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2866                                goto err;
2867                }
2868                reg = STV090x_READ_DEMOD(state, DEMOD);
2869                STV090x_SETFIELD_Px(reg, ROLLOFF_CONTROL_FIELD, state->rolloff);
2870                STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 0x01);
2871                if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
2872                        goto err;
2873
2874                if (state->internal->dev_ver >= 0x30) {
2875                        if (stv090x_get_viterbi(state) < 0)
2876                                goto err;
2877
2878                        if (state->fec == STV090x_PR12) {
2879                                if (STV090x_WRITE_DEMOD(state, GAUSSR0, 0x98) < 0)
2880                                        goto err;
2881                                if (STV090x_WRITE_DEMOD(state, CCIR0, 0x18) < 0)
2882                                        goto err;
2883                        } else {
2884                                if (STV090x_WRITE_DEMOD(state, GAUSSR0, 0x18) < 0)
2885                                        goto err;
2886                                if (STV090x_WRITE_DEMOD(state, CCIR0, 0x18) < 0)
2887                                        goto err;
2888                        }
2889                }
2890
2891                if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x75) < 0)
2892                        goto err;
2893                break;
2894
2895        case STV090x_DVBS2:
2896                reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2897                STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
2898                STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
2899                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2900                        goto err;
2901                if (state->internal->dev_ver >= 0x30) {
2902                        if (STV090x_WRITE_DEMOD(state, ACLC, 0) < 0)
2903                                goto err;
2904                        if (STV090x_WRITE_DEMOD(state, BCLC, 0) < 0)
2905                                goto err;
2906                }
2907                if (state->frame_len == STV090x_LONG_FRAME) {
2908                        reg = STV090x_READ_DEMOD(state, DMDMODCOD);
2909                        modcod = STV090x_GETFIELD_Px(reg, DEMOD_MODCOD_FIELD);
2910                        pilots = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) & 0x01;
2911                        aclc = stv090x_optimize_carloop(state, modcod, pilots);
2912                        if (modcod <= STV090x_QPSK_910) {
2913                                STV090x_WRITE_DEMOD(state, ACLC2S2Q, aclc);
2914                        } else if (modcod <= STV090x_8PSK_910) {
2915                                if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2916                                        goto err;
2917                                if (STV090x_WRITE_DEMOD(state, ACLC2S28, aclc) < 0)
2918                                        goto err;
2919                        }
2920                        if ((state->demod_mode == STV090x_SINGLE) && (modcod > STV090x_8PSK_910)) {
2921                                if (modcod <= STV090x_16APSK_910) {
2922                                        if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2923                                                goto err;
2924                                        if (STV090x_WRITE_DEMOD(state, ACLC2S216A, aclc) < 0)
2925                                                goto err;
2926                                } else {
2927                                        if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2928                                                goto err;
2929                                        if (STV090x_WRITE_DEMOD(state, ACLC2S232A, aclc) < 0)
2930                                                goto err;
2931                                }
2932                        }
2933                } else {
2934                        /*Carrier loop setting for short frame*/
2935                        aclc = stv090x_optimize_carloop_short(state);
2936                        if (state->modulation == STV090x_QPSK) {
2937                                if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, aclc) < 0)
2938                                        goto err;
2939                        } else if (state->modulation == STV090x_8PSK) {
2940                                if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2941                                        goto err;
2942                                if (STV090x_WRITE_DEMOD(state, ACLC2S28, aclc) < 0)
2943                                        goto err;
2944                        } else if (state->modulation == STV090x_16APSK) {
2945                                if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2946                                        goto err;
2947                                if (STV090x_WRITE_DEMOD(state, ACLC2S216A, aclc) < 0)
2948                                        goto err;
2949                        } else if (state->modulation == STV090x_32APSK)  {
2950                                if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2951                                        goto err;
2952                                if (STV090x_WRITE_DEMOD(state, ACLC2S232A, aclc) < 0)
2953                                        goto err;
2954                        }
2955                }
2956
2957                STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x67); /* PER */
2958                break;
2959
2960        case STV090x_ERROR:
2961        default:
2962                reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2963                STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
2964                STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
2965                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2966                        goto err;
2967                break;
2968        }
2969
2970        f_1 = STV090x_READ_DEMOD(state, CFR2);
2971        f_0 = STV090x_READ_DEMOD(state, CFR1);
2972        reg = STV090x_READ_DEMOD(state, TMGOBS);
2973
2974        if (state->algo == STV090x_BLIND_SEARCH) {
2975                STV090x_WRITE_DEMOD(state, SFRSTEP, 0x00);
2976                reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2977                STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0x00);
2978                STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00);
2979                if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2980                        goto err;
2981                if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0)
2982                        goto err;
2983
2984                if (stv090x_set_srate(state, srate) < 0)
2985                        goto err;
2986                blind_tune = 1;
2987
2988                if (stv090x_dvbs_track_crl(state) < 0)
2989                        goto err;
2990        }
2991
2992        if (state->internal->dev_ver >= 0x20) {
2993                if ((state->search_mode == STV090x_SEARCH_DVBS1)        ||
2994                    (state->search_mode == STV090x_SEARCH_DSS)          ||
2995                    (state->search_mode == STV090x_SEARCH_AUTO)) {
2996
2997                        if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x0a) < 0)
2998                                goto err;
2999                        if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x00) < 0)
3000                                goto err;
3001                }
3002        }
3003
3004        if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
3005                goto err;
3006
3007        /* AUTO tracking MODE */
3008        if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x80) < 0)
3009                goto err;
3010        /* AUTO tracking MODE */
3011        if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x80) < 0)
3012                goto err;
3013
3014        if ((state->internal->dev_ver >= 0x20) || (blind_tune == 1) ||
3015            (state->srate < 10000000)) {
3016                /* update initial carrier freq with the found freq offset */
3017                if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
3018                        goto err;
3019                if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
3020                        goto err;
3021                state->tuner_bw = stv090x_car_width(srate, state->rolloff) + 10000000;
3022
3023                if ((state->internal->dev_ver >= 0x20) || (blind_tune == 1)) {
3024
3025                        if (state->algo != STV090x_WARM_SEARCH) {
3026
3027                                if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3028                                        goto err;
3029
3030                                if (state->config->tuner_set_bandwidth) {
3031                                        if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
3032                                                goto err_gateoff;
3033                                }
3034
3035                                if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3036                                        goto err;
3037
3038                        }
3039                }
3040                if ((state->algo == STV090x_BLIND_SEARCH) || (state->srate < 10000000))
3041                        msleep(50); /* blind search: wait 50ms for SR stabilization */
3042                else
3043                        msleep(5);
3044
3045                stv090x_get_lock_tmg(state);
3046
3047                if (!(stv090x_get_dmdlock(state, (state->DemodTimeout / 2)))) {
3048                        if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
3049                                goto err;
3050                        if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
3051                                goto err;
3052                        if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
3053                                goto err;
3054                        if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
3055                                goto err;
3056
3057                        i = 0;
3058
3059                        while ((!(stv090x_get_dmdlock(state, (state->DemodTimeout / 2)))) && (i <= 2)) {
3060
3061                                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
3062                                        goto err;
3063                                if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
3064                                        goto err;
3065                                if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
3066                                        goto err;
3067                                if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
3068                                        goto err;
3069                                i++;
3070                        }
3071                }
3072
3073        }
3074
3075        if (state->internal->dev_ver >= 0x20) {
3076                if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
3077                        goto err;
3078        }
3079
3080        if ((state->delsys == STV090x_DVBS1) || (state->delsys == STV090x_DSS))
3081                stv090x_set_vit_thtracq(state);
3082
3083        return 0;
3084
3085err_gateoff:
3086        stv090x_i2c_gate_ctrl(state, 0);
3087err:
3088        dprintk(FE_ERROR, 1, "I/O error");
3089        return -1;
3090}
3091
3092static int stv090x_get_feclock(struct stv090x_state *state, s32 timeout)
3093{
3094        s32 timer = 0, lock = 0, stat;
3095        u32 reg;
3096
3097        while ((timer < timeout) && (!lock)) {
3098                reg = STV090x_READ_DEMOD(state, DMDSTATE);
3099                stat = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
3100
3101                switch (stat) {
3102                case 0: /* searching */
3103                case 1: /* first PLH detected */
3104                default:
3105                        lock = 0;
3106                        break;
3107
3108                case 2: /* DVB-S2 mode */
3109                        reg = STV090x_READ_DEMOD(state, PDELSTATUS1);
3110                        lock = STV090x_GETFIELD_Px(reg, PKTDELIN_LOCK_FIELD);
3111                        break;
3112
3113                case 3: /* DVB-S1/legacy mode */
3114                        reg = STV090x_READ_DEMOD(state, VSTATUSVIT);
3115                        lock = STV090x_GETFIELD_Px(reg, LOCKEDVIT_FIELD);
3116                        break;
3117                }
3118                if (!lock) {
3119                        msleep(10);
3120                        timer += 10;
3121                }
3122        }
3123        return lock;
3124}
3125
3126static int stv090x_get_lock(struct stv090x_state *state, s32 timeout_dmd, s32 timeout_fec)
3127{
3128        u32 reg;
3129        s32 timer = 0;
3130        int lock;
3131
3132        lock = stv090x_get_dmdlock(state, timeout_dmd);
3133        if (lock)
3134                lock = stv090x_get_feclock(state, timeout_fec);
3135
3136        if (lock) {
3137                lock = 0;
3138
3139                while ((timer < timeout_fec) && (!lock)) {
3140                        reg = STV090x_READ_DEMOD(state, TSSTATUS);
3141                        lock = STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD);
3142                        msleep(1);
3143                        timer++;
3144                }
3145        }
3146
3147        return lock;
3148}
3149
3150static int stv090x_set_s2rolloff(struct stv090x_state *state)
3151{
3152        u32 reg;
3153
3154        if (state->internal->dev_ver <= 0x20) {
3155                /* rolloff to auto mode if DVBS2 */
3156                reg = STV090x_READ_DEMOD(state, DEMOD);
3157                STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 0x00);
3158                if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3159                        goto err;
3160        } else {
3161                /* DVB-S2 rolloff to auto mode if DVBS2 */
3162                reg = STV090x_READ_DEMOD(state, DEMOD);
3163                STV090x_SETFIELD_Px(reg, MANUAL_S2ROLLOFF_FIELD, 0x00);
3164                if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3165                        goto err;
3166        }
3167        return 0;
3168err:
3169        dprintk(FE_ERROR, 1, "I/O error");
3170        return -1;
3171}
3172
3173
3174static enum stv090x_signal_state stv090x_algo(struct stv090x_state *state)
3175{
3176        struct dvb_frontend *fe = &state->frontend;
3177        enum stv090x_signal_state signal_state = STV090x_NOCARRIER;
3178        u32 reg;
3179        s32 agc1_power, power_iq = 0, i;
3180        int lock = 0, low_sr = 0;
3181
3182        reg = STV090x_READ_DEMOD(state, TSCFGH);
3183        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 1); /* Stop path 1 stream merger */
3184        if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3185                goto err;
3186
3187        if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5c) < 0) /* Demod stop */
3188                goto err;
3189
3190        if (state->internal->dev_ver >= 0x20) {
3191                if (state->srate > 5000000) {
3192                        if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x9e) < 0)
3193                                goto err;
3194                } else {
3195                        if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x82) < 0)
3196                                goto err;
3197                }
3198        }
3199
3200        stv090x_get_lock_tmg(state);
3201
3202        if (state->algo == STV090x_BLIND_SEARCH) {
3203                state->tuner_bw = 2 * 36000000; /* wide bw for unknown srate */
3204                if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc0) < 0) /* wider srate scan */
3205                        goto err;
3206                if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x70) < 0)
3207                        goto err;
3208                if (stv090x_set_srate(state, 1000000) < 0) /* initial srate = 1Msps */
3209                        goto err;
3210        } else {
3211                /* known srate */
3212                if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x20) < 0)
3213                        goto err;
3214                if (STV090x_WRITE_DEMOD(state, TMGCFG, 0xd2) < 0)
3215                        goto err;
3216
3217                if (state->srate < 2000000) {
3218                        /* SR < 2MSPS */
3219                        if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x63) < 0)
3220                                goto err;
3221                } else {
3222                        /* SR >= 2Msps */
3223                        if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x70) < 0)
3224                                goto err;
3225                }
3226
3227                if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
3228                        goto err;
3229
3230                if (state->internal->dev_ver >= 0x20) {
3231                        if (STV090x_WRITE_DEMOD(state, KREFTMG, 0x5a) < 0)
3232                                goto err;
3233                        if (state->algo == STV090x_COLD_SEARCH)
3234                                state->tuner_bw = (15 * (stv090x_car_width(state->srate, state->rolloff) + 10000000)) / 10;
3235                        else if (state->algo == STV090x_WARM_SEARCH)
3236                                state->tuner_bw = stv090x_car_width(state->srate, state->rolloff) + 10000000;
3237                }
3238
3239                /* if cold start or warm  (Symbolrate is known)
3240                 * use a Narrow symbol rate scan range
3241                 */
3242                if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0) /* narrow srate scan */
3243                        goto err;
3244
3245                if (stv090x_set_srate(state, state->srate) < 0)
3246                        goto err;
3247
3248                if (stv090x_set_max_srate(state, state->internal->mclk,
3249                                          state->srate) < 0)
3250                        goto err;
3251                if (stv090x_set_min_srate(state, state->internal->mclk,
3252                                          state->srate) < 0)
3253                        goto err;
3254
3255                if (state->srate >= 10000000)
3256                        low_sr = 0;
3257                else
3258                        low_sr = 1;
3259        }
3260
3261        /* Setup tuner */
3262        if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3263                goto err;
3264
3265        if (state->config->tuner_set_bbgain) {
3266                reg = state->config->tuner_bbgain;
3267                if (reg == 0)
3268                        reg = 10; /* default: 10dB */
3269                if (state->config->tuner_set_bbgain(fe, reg) < 0)
3270                        goto err_gateoff;
3271        }
3272
3273        if (state->config->tuner_set_frequency) {
3274                if (state->config->tuner_set_frequency(fe, state->frequency) < 0)
3275                        goto err_gateoff;
3276        }
3277
3278        if (state->config->tuner_set_bandwidth) {
3279                if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
3280                        goto err_gateoff;
3281        }
3282
3283        if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3284                goto err;
3285
3286        msleep(50);
3287
3288        if (state->config->tuner_get_status) {
3289                if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3290                        goto err;
3291                if (state->config->tuner_get_status(fe, &reg) < 0)
3292                        goto err_gateoff;
3293                if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3294                        goto err;
3295
3296                if (reg)
3297                        dprintk(FE_DEBUG, 1, "Tuner phase locked");
3298                else {
3299                        dprintk(FE_DEBUG, 1, "Tuner unlocked");
3300                        return STV090x_NOCARRIER;
3301                }
3302        }
3303
3304        msleep(10);
3305        agc1_power = MAKEWORD16(STV090x_READ_DEMOD(state, AGCIQIN1),
3306                                STV090x_READ_DEMOD(state, AGCIQIN0));
3307
3308        if (agc1_power == 0) {
3309                /* If AGC1 integrator value is 0
3310                 * then read POWERI, POWERQ
3311                 */
3312                for (i = 0; i < 5; i++) {
3313                        power_iq += (STV090x_READ_DEMOD(state, POWERI) +
3314                                     STV090x_READ_DEMOD(state, POWERQ)) >> 1;
3315                }
3316                power_iq /= 5;
3317        }
3318
3319        if ((agc1_power == 0) && (power_iq < STV090x_IQPOWER_THRESHOLD)) {
3320                dprintk(FE_ERROR, 1, "No Signal: POWER_IQ=0x%02x", power_iq);
3321                lock = 0;
3322                signal_state = STV090x_NOAGC1;
3323        } else {
3324                reg = STV090x_READ_DEMOD(state, DEMOD);
3325                STV090x_SETFIELD_Px(reg, SPECINV_CONTROL_FIELD, state->inversion);
3326
3327                if (state->internal->dev_ver <= 0x20) {
3328                        /* rolloff to auto mode if DVBS2 */
3329                        STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 1);
3330                } else {
3331                        /* DVB-S2 rolloff to auto mode if DVBS2 */
3332                        STV090x_SETFIELD_Px(reg, MANUAL_S2ROLLOFF_FIELD, 1);
3333                }
3334                if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3335                        goto err;
3336
3337                if (stv090x_delivery_search(state) < 0)
3338                        goto err;
3339
3340                if (state->algo != STV090x_BLIND_SEARCH) {
3341                        if (stv090x_start_search(state) < 0)
3342                                goto err;
3343                }
3344        }
3345
3346        if (signal_state == STV090x_NOAGC1)
3347                return signal_state;
3348
3349        if (state->algo == STV090x_BLIND_SEARCH)
3350                lock = stv090x_blind_search(state);
3351
3352        else if (state->algo == STV090x_COLD_SEARCH)
3353                lock = stv090x_get_coldlock(state, state->DemodTimeout);
3354
3355        else if (state->algo == STV090x_WARM_SEARCH)
3356                lock = stv090x_get_dmdlock(state, state->DemodTimeout);
3357
3358        if ((!lock) && (state->algo == STV090x_COLD_SEARCH)) {
3359                if (!low_sr) {
3360                        if (stv090x_chk_tmg(state))
3361                                lock = stv090x_sw_algo(state);
3362                }
3363        }
3364
3365        if (lock)
3366                signal_state = stv090x_get_sig_params(state);
3367
3368        if ((lock) && (signal_state == STV090x_RANGEOK)) { /* signal within Range */
3369                stv090x_optimize_track(state);
3370
3371                if (state->internal->dev_ver >= 0x20) {
3372                        /* >= Cut 2.0 :release TS reset after
3373                         * demod lock and optimized Tracking
3374                         */
3375                        reg = STV090x_READ_DEMOD(state, TSCFGH);
3376                        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
3377                        if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3378                                goto err;
3379
3380                        msleep(3);
3381
3382                        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 1); /* merger reset */
3383                        if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3384                                goto err;
3385
3386                        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
3387                        if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3388                                goto err;
3389                }
3390
3391                lock = stv090x_get_lock(state, state->FecTimeout,
3392                                state->FecTimeout);
3393                if (lock) {
3394                        if (state->delsys == STV090x_DVBS2) {
3395                                stv090x_set_s2rolloff(state);
3396
3397                                reg = STV090x_READ_DEMOD(state, PDELCTRL2);
3398                                STV090x_SETFIELD_Px(reg, RESET_UPKO_COUNT, 1);
3399                                if (STV090x_WRITE_DEMOD(state, PDELCTRL2, reg) < 0)
3400                                        goto err;
3401                                /* Reset DVBS2 packet delinator error counter */
3402                                reg = STV090x_READ_DEMOD(state, PDELCTRL2);
3403                                STV090x_SETFIELD_Px(reg, RESET_UPKO_COUNT, 0);
3404                                if (STV090x_WRITE_DEMOD(state, PDELCTRL2, reg) < 0)
3405                                        goto err;
3406
3407                                if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x67) < 0) /* PER */
3408                                        goto err;
3409                        } else {
3410                                if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x75) < 0)
3411                                        goto err;
3412                        }
3413                        /* Reset the Total packet counter */
3414                        if (STV090x_WRITE_DEMOD(state, FBERCPT4, 0x00) < 0)
3415                                goto err;
3416                        /* Reset the packet Error counter2 */
3417                        if (STV090x_WRITE_DEMOD(state, ERRCTRL2, 0xc1) < 0)
3418                                goto err;
3419                } else {
3420                        signal_state = STV090x_NODATA;
3421                        stv090x_chk_signal(state);
3422                }
3423        }
3424        return signal_state;
3425
3426err_gateoff:
3427        stv090x_i2c_gate_ctrl(state, 0);
3428err:
3429        dprintk(FE_ERROR, 1, "I/O error");
3430        return -1;
3431}
3432
3433static int stv090x_set_pls(struct stv090x_state *state, u32 pls_code)
3434{
3435        dprintk(FE_DEBUG, 1, "Set Gold PLS code %d", pls_code);
3436        if (STV090x_WRITE_DEMOD(state, PLROOT0, pls_code & 0xff) < 0)
3437                goto err;
3438        if (STV090x_WRITE_DEMOD(state, PLROOT1, (pls_code >> 8) & 0xff) < 0)
3439                goto err;
3440        if (STV090x_WRITE_DEMOD(state, PLROOT2, 0x04 | (pls_code >> 16)) < 0)
3441                goto err;
3442        return 0;
3443err:
3444        dprintk(FE_ERROR, 1, "I/O error");
3445        return -1;
3446}
3447
3448static int stv090x_set_mis(struct stv090x_state *state, int mis)
3449{
3450        u32 reg;
3451
3452        if (mis < 0 || mis > 255) {
3453                dprintk(FE_DEBUG, 1, "Disable MIS filtering");
3454                reg = STV090x_READ_DEMOD(state, PDELCTRL1);
3455                STV090x_SETFIELD_Px(reg, FILTER_EN_FIELD, 0x00);
3456                if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
3457                        goto err;
3458        } else {
3459                dprintk(FE_DEBUG, 1, "Enable MIS filtering - %d", mis);
3460                reg = STV090x_READ_DEMOD(state, PDELCTRL1);
3461                STV090x_SETFIELD_Px(reg, FILTER_EN_FIELD, 0x01);
3462                if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
3463                        goto err;
3464                if (STV090x_WRITE_DEMOD(state, ISIENTRY, mis) < 0)
3465                        goto err;
3466                if (STV090x_WRITE_DEMOD(state, ISIBITENA, 0xff) < 0)
3467                        goto err;
3468        }
3469        return 0;
3470err:
3471        dprintk(FE_ERROR, 1, "I/O error");
3472        return -1;
3473}
3474
3475static enum dvbfe_search stv090x_search(struct dvb_frontend *fe)
3476{
3477        struct stv090x_state *state = fe->demodulator_priv;
3478        struct dtv_frontend_properties *props = &fe->dtv_property_cache;
3479
3480        if (props->frequency == 0)
3481                return DVBFE_ALGO_SEARCH_INVALID;
3482
3483        switch (props->delivery_system) {
3484        case SYS_DSS:
3485                state->delsys = STV090x_DSS;
3486                break;
3487        case SYS_DVBS:
3488                state->delsys = STV090x_DVBS1;
3489                break;
3490        case SYS_DVBS2:
3491                state->delsys = STV090x_DVBS2;
3492                break;
3493        default:
3494                return DVBFE_ALGO_SEARCH_INVALID;
3495        }
3496
3497        state->frequency = props->frequency;
3498        state->srate = props->symbol_rate;
3499        state->search_mode = STV090x_SEARCH_AUTO;
3500        state->algo = STV090x_COLD_SEARCH;
3501        state->fec = STV090x_PRERR;
3502        if (state->srate > 10000000) {
3503                dprintk(FE_DEBUG, 1, "Search range: 10 MHz");
3504                state->search_range = 10000000;
3505        } else {
3506                dprintk(FE_DEBUG, 1, "Search range: 5 MHz");
3507                state->search_range = 5000000;
3508        }
3509
3510        stv090x_set_pls(state, props->scrambling_sequence_index);
3511        stv090x_set_mis(state, props->stream_id);
3512
3513        if (stv090x_algo(state) == STV090x_RANGEOK) {
3514                dprintk(FE_DEBUG, 1, "Search success!");
3515                return DVBFE_ALGO_SEARCH_SUCCESS;
3516        } else {
3517                dprintk(FE_DEBUG, 1, "Search failed!");
3518                return DVBFE_ALGO_SEARCH_FAILED;
3519        }
3520
3521        return DVBFE_ALGO_SEARCH_ERROR;
3522}
3523
3524static int stv090x_read_status(struct dvb_frontend *fe, enum fe_status *status)
3525{
3526        struct stv090x_state *state = fe->demodulator_priv;
3527        u32 reg, dstatus;
3528        u8 search_state;
3529
3530        *status = 0;
3531
3532        dstatus = STV090x_READ_DEMOD(state, DSTATUS);
3533        if (STV090x_GETFIELD_Px(dstatus, CAR_LOCK_FIELD))
3534                *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER;
3535
3536        reg = STV090x_READ_DEMOD(state, DMDSTATE);
3537        search_state = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
3538
3539        switch (search_state) {
3540        case 0: /* searching */
3541        case 1: /* first PLH detected */
3542        default:
3543                dprintk(FE_DEBUG, 1, "Status: Unlocked (Searching ..)");
3544                break;
3545
3546        case 2: /* DVB-S2 mode */
3547                dprintk(FE_DEBUG, 1, "Delivery system: DVB-S2");
3548                if (STV090x_GETFIELD_Px(dstatus, LOCK_DEFINITIF_FIELD)) {
3549                        reg = STV090x_READ_DEMOD(state, PDELSTATUS1);
3550                        if (STV090x_GETFIELD_Px(reg, PKTDELIN_LOCK_FIELD)) {
3551                                *status |= FE_HAS_VITERBI;
3552                                reg = STV090x_READ_DEMOD(state, TSSTATUS);
3553                                if (STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD))
3554                                        *status |= FE_HAS_SYNC | FE_HAS_LOCK;
3555                        }
3556                }
3557                break;
3558
3559        case 3: /* DVB-S1/legacy mode */
3560                dprintk(FE_DEBUG, 1, "Delivery system: DVB-S");
3561                if (STV090x_GETFIELD_Px(dstatus, LOCK_DEFINITIF_FIELD)) {
3562                        reg = STV090x_READ_DEMOD(state, VSTATUSVIT);
3563                        if (STV090x_GETFIELD_Px(reg, LOCKEDVIT_FIELD)) {
3564                                *status |= FE_HAS_VITERBI;
3565                                reg = STV090x_READ_DEMOD(state, TSSTATUS);
3566                                if (STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD))
3567                                        *status |= FE_HAS_SYNC | FE_HAS_LOCK;
3568                        }
3569                }
3570                break;
3571        }
3572
3573        return 0;
3574}
3575
3576static int stv090x_read_per(struct dvb_frontend *fe, u32 *per)
3577{
3578        struct stv090x_state *state = fe->demodulator_priv;
3579
3580        s32 count_4, count_3, count_2, count_1, count_0, count;
3581        u32 reg, h, m, l;
3582        enum fe_status status;
3583
3584        stv090x_read_status(fe, &status);
3585        if (!(status & FE_HAS_LOCK)) {
3586                *per = 1 << 23; /* Max PER */
3587        } else {
3588                /* Counter 2 */
3589                reg = STV090x_READ_DEMOD(state, ERRCNT22);
3590                h = STV090x_GETFIELD_Px(reg, ERR_CNT2_FIELD);
3591
3592                reg = STV090x_READ_DEMOD(state, ERRCNT21);
3593                m = STV090x_GETFIELD_Px(reg, ERR_CNT21_FIELD);
3594
3595                reg = STV090x_READ_DEMOD(state, ERRCNT20);
3596                l = STV090x_GETFIELD_Px(reg, ERR_CNT20_FIELD);
3597
3598                *per = ((h << 16) | (m << 8) | l);
3599
3600                count_4 = STV090x_READ_DEMOD(state, FBERCPT4);
3601                count_3 = STV090x_READ_DEMOD(state, FBERCPT3);
3602                count_2 = STV090x_READ_DEMOD(state, FBERCPT2);
3603                count_1 = STV090x_READ_DEMOD(state, FBERCPT1);
3604                count_0 = STV090x_READ_DEMOD(state, FBERCPT0);
3605
3606                if ((!count_4) && (!count_3)) {
3607                        count  = (count_2 & 0xff) << 16;
3608                        count |= (count_1 & 0xff) <<  8;
3609                        count |=  count_0 & 0xff;
3610                } else {
3611                        count = 1 << 24;
3612                }
3613                if (count == 0)
3614                        *per = 1;
3615        }
3616        if (STV090x_WRITE_DEMOD(state, FBERCPT4, 0) < 0)
3617                goto err;
3618        if (STV090x_WRITE_DEMOD(state, ERRCTRL2, 0xc1) < 0)
3619                goto err;
3620
3621        return 0;
3622err:
3623        dprintk(FE_ERROR, 1, "I/O error");
3624        return -1;
3625}
3626
3627static int stv090x_table_lookup(const struct stv090x_tab *tab, int max, int val)
3628{
3629        int res = 0;
3630        int min = 0, med;
3631
3632        if ((val >= tab[min].read && val < tab[max].read) ||
3633            (val >= tab[max].read && val < tab[min].read)) {
3634                while ((max - min) > 1) {
3635                        med = (max + min) / 2;
3636                        if ((val >= tab[min].read && val < tab[med].read) ||
3637                            (val >= tab[med].read && val < tab[min].read))
3638                                max = med;
3639                        else
3640                                min = med;
3641                }
3642                res = ((val - tab[min].read) *
3643                       (tab[max].real - tab[min].real) /
3644                       (tab[max].read - tab[min].read)) +
3645                        tab[min].real;
3646        } else {
3647                if (tab[min].read < tab[max].read) {
3648                        if (val < tab[min].read)
3649                                res = tab[min].real;
3650                        else if (val >= tab[max].read)
3651                                res = tab[max].real;
3652                } else {
3653                        if (val >= tab[min].read)
3654                                res = tab[min].real;
3655                        else if (val < tab[max].read)
3656                                res = tab[max].real;
3657                }
3658        }
3659
3660        return res;
3661}
3662
3663static int stv090x_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
3664{
3665        struct stv090x_state *state = fe->demodulator_priv;
3666        u32 reg;
3667        s32 agc_0, agc_1, agc;
3668        s32 str;
3669
3670        reg = STV090x_READ_DEMOD(state, AGCIQIN1);
3671        agc_1 = STV090x_GETFIELD_Px(reg, AGCIQ_VALUE_FIELD);
3672        reg = STV090x_READ_DEMOD(state, AGCIQIN0);
3673        agc_0 = STV090x_GETFIELD_Px(reg, AGCIQ_VALUE_FIELD);
3674        agc = MAKEWORD16(agc_1, agc_0);
3675
3676        str = stv090x_table_lookup(stv090x_rf_tab,
3677                ARRAY_SIZE(stv090x_rf_tab) - 1, agc);
3678        if (agc > stv090x_rf_tab[0].read)
3679                str = 0;
3680        else if (agc < stv090x_rf_tab[ARRAY_SIZE(stv090x_rf_tab) - 1].read)
3681                str = -100;
3682        *strength = (str + 100) * 0xFFFF / 100;
3683
3684        return 0;
3685}
3686
3687static int stv090x_read_cnr(struct dvb_frontend *fe, u16 *cnr)
3688{
3689        struct stv090x_state *state = fe->demodulator_priv;
3690        u32 reg_0, reg_1, reg, i;
3691        s32 val_0, val_1, val = 0;
3692        u8 lock_f;
3693        s32 div;
3694        u32 last;
3695
3696        switch (state->delsys) {
3697        case STV090x_DVBS2:
3698                reg = STV090x_READ_DEMOD(state, DSTATUS);
3699                lock_f = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
3700                if (lock_f) {
3701                        msleep(5);
3702                        for (i = 0; i < 16; i++) {
3703                                reg_1 = STV090x_READ_DEMOD(state, NNOSPLHT1);
3704                                val_1 = STV090x_GETFIELD_Px(reg_1, NOSPLHT_NORMED_FIELD);
3705                                reg_0 = STV090x_READ_DEMOD(state, NNOSPLHT0);
3706                                val_0 = STV090x_GETFIELD_Px(reg_0, NOSPLHT_NORMED_FIELD);
3707                                val  += MAKEWORD16(val_1, val_0);
3708                                msleep(1);
3709                        }
3710                        val /= 16;
3711                        last = ARRAY_SIZE(stv090x_s2cn_tab) - 1;
3712                        div = stv090x_s2cn_tab[last].real -
3713                              stv090x_s2cn_tab[3].real;
3714                        val = stv090x_table_lookup(stv090x_s2cn_tab, last, val);
3715                        if (val < 0)
3716                                val = 0;
3717                        *cnr = val * 0xFFFF / div;
3718                }
3719                break;
3720
3721        case STV090x_DVBS1:
3722        case STV090x_DSS:
3723                reg = STV090x_READ_DEMOD(state, DSTATUS);
3724                lock_f = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
3725                if (lock_f) {
3726                        msleep(5);
3727                        for (i = 0; i < 16; i++) {
3728                                reg_1 = STV090x_READ_DEMOD(state, NOSDATAT1);
3729                                val_1 = STV090x_GETFIELD_Px(reg_1, NOSDATAT_UNNORMED_FIELD);
3730                                reg_0 = STV090x_READ_DEMOD(state, NOSDATAT0);
3731                                val_0 = STV090x_GETFIELD_Px(reg_0, NOSDATAT_UNNORMED_FIELD);
3732                                val  += MAKEWORD16(val_1, val_0);
3733                                msleep(1);
3734                        }
3735                        val /= 16;
3736                        last = ARRAY_SIZE(stv090x_s1cn_tab) - 1;
3737                        div = stv090x_s1cn_tab[last].real -
3738                              stv090x_s1cn_tab[0].real;
3739                        val = stv090x_table_lookup(stv090x_s1cn_tab, last, val);
3740                        *cnr = val * 0xFFFF / div;
3741                }
3742                break;
3743        default:
3744                break;
3745        }
3746
3747        return 0;
3748}
3749
3750static int stv090x_set_tone(struct dvb_frontend *fe, enum fe_sec_tone_mode tone)
3751{
3752        struct stv090x_state *state = fe->demodulator_priv;
3753        u32 reg;
3754
3755        reg = STV090x_READ_DEMOD(state, DISTXCTL);
3756        switch (tone) {
3757        case SEC_TONE_ON:
3758                STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, 0);
3759                STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3760                if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3761                        goto err;
3762                STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3763                if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3764                        goto err;
3765                break;
3766
3767        case SEC_TONE_OFF:
3768                STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, 0);
3769                STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3770                if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3771                        goto err;
3772                break;
3773        default:
3774                return -EINVAL;
3775        }
3776
3777        return 0;
3778err:
3779        dprintk(FE_ERROR, 1, "I/O error");
3780        return -1;
3781}
3782
3783
3784static enum dvbfe_algo stv090x_frontend_algo(struct dvb_frontend *fe)
3785{
3786        return DVBFE_ALGO_CUSTOM;
3787}
3788
3789static int stv090x_send_diseqc_msg(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd)
3790{
3791        struct stv090x_state *state = fe->demodulator_priv;
3792        u32 reg, idle = 0, fifo_full = 1;
3793        int i;
3794
3795        reg = STV090x_READ_DEMOD(state, DISTXCTL);
3796
3797        STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD,
3798                (state->config->diseqc_envelope_mode) ? 4 : 2);
3799        STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3800        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3801                goto err;
3802        STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3803        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3804                goto err;
3805
3806        STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 1);
3807        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3808                goto err;
3809
3810        for (i = 0; i < cmd->msg_len; i++) {
3811
3812                while (fifo_full) {
3813                        reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3814                        fifo_full = STV090x_GETFIELD_Px(reg, FIFO_FULL_FIELD);
3815                }
3816
3817                if (STV090x_WRITE_DEMOD(state, DISTXDATA, cmd->msg[i]) < 0)
3818                        goto err;
3819        }
3820        reg = STV090x_READ_DEMOD(state, DISTXCTL);
3821        STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 0);
3822        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3823                goto err;
3824
3825        i = 0;
3826
3827        while ((!idle) && (i < 10)) {
3828                reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3829                idle = STV090x_GETFIELD_Px(reg, TX_IDLE_FIELD);
3830                msleep(10);
3831                i++;
3832        }
3833
3834        return 0;
3835err:
3836        dprintk(FE_ERROR, 1, "I/O error");
3837        return -1;
3838}
3839
3840static int stv090x_send_diseqc_burst(struct dvb_frontend *fe,
3841                                     enum fe_sec_mini_cmd burst)
3842{
3843        struct stv090x_state *state = fe->demodulator_priv;
3844        u32 reg, idle = 0, fifo_full = 1;
3845        u8 mode, value;
3846        int i;
3847
3848        reg = STV090x_READ_DEMOD(state, DISTXCTL);
3849
3850        if (burst == SEC_MINI_A) {
3851                mode = (state->config->diseqc_envelope_mode) ? 5 : 3;
3852                value = 0x00;
3853        } else {
3854                mode = (state->config->diseqc_envelope_mode) ? 4 : 2;
3855                value = 0xFF;
3856        }
3857
3858        STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, mode);
3859        STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3860        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3861                goto err;
3862        STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3863        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3864                goto err;
3865
3866        STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 1);
3867        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3868                goto err;
3869
3870        while (fifo_full) {
3871                reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3872                fifo_full = STV090x_GETFIELD_Px(reg, FIFO_FULL_FIELD);
3873        }
3874
3875        if (STV090x_WRITE_DEMOD(state, DISTXDATA, value) < 0)
3876                goto err;
3877
3878        reg = STV090x_READ_DEMOD(state, DISTXCTL);
3879        STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 0);
3880        if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3881                goto err;
3882
3883        i = 0;
3884
3885        while ((!idle) && (i < 10)) {
3886                reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3887                idle = STV090x_GETFIELD_Px(reg, TX_IDLE_FIELD);
3888                msleep(10);
3889                i++;
3890        }
3891
3892        return 0;
3893err:
3894        dprintk(FE_ERROR, 1, "I/O error");
3895        return -1;
3896}
3897
3898static int stv090x_recv_slave_reply(struct dvb_frontend *fe, struct dvb_diseqc_slave_reply *reply)
3899{
3900        struct stv090x_state *state = fe->demodulator_priv;
3901        u32 reg = 0, i = 0, rx_end = 0;
3902
3903        while ((rx_end != 1) && (i < 10)) {
3904                msleep(10);
3905                i++;
3906                reg = STV090x_READ_DEMOD(state, DISRX_ST0);
3907                rx_end = STV090x_GETFIELD_Px(reg, RX_END_FIELD);
3908        }
3909
3910        if (rx_end) {
3911                reply->msg_len = STV090x_GETFIELD_Px(reg, FIFO_BYTENBR_FIELD);
3912                for (i = 0; i < reply->msg_len; i++)
3913                        reply->msg[i] = STV090x_READ_DEMOD(state, DISRXDATA);
3914        }
3915
3916        return 0;
3917}
3918
3919static int stv090x_sleep(struct dvb_frontend *fe)
3920{
3921        struct stv090x_state *state = fe->demodulator_priv;
3922        u32 reg;
3923        u8 full_standby = 0;
3924
3925        if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3926                goto err;
3927
3928        if (state->config->tuner_sleep) {
3929                if (state->config->tuner_sleep(fe) < 0)
3930                        goto err_gateoff;
3931        }
3932
3933        if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3934                goto err;
3935
3936        dprintk(FE_DEBUG, 1, "Set %s(%d) to sleep",
3937                state->device == STV0900 ? "STV0900" : "STV0903",
3938                state->demod);
3939
3940        mutex_lock(&state->internal->demod_lock);
3941
3942        switch (state->demod) {
3943        case STV090x_DEMODULATOR_0:
3944                /* power off ADC 1 */
3945                reg = stv090x_read_reg(state, STV090x_TSTTNR1);
3946                STV090x_SETFIELD(reg, ADC1_PON_FIELD, 0);
3947                if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
3948                        goto err_unlock;
3949                /* power off DiSEqC 1 */
3950                reg = stv090x_read_reg(state, STV090x_TSTTNR2);
3951                STV090x_SETFIELD(reg, DISEQC1_PON_FIELD, 0);
3952                if (stv090x_write_reg(state, STV090x_TSTTNR2, reg) < 0)
3953                        goto err_unlock;
3954
3955                /* check whether path 2 is already sleeping, that is when
3956                   ADC2 is off */
3957                reg = stv090x_read_reg(state, STV090x_TSTTNR3);
3958                if (STV090x_GETFIELD(reg, ADC2_PON_FIELD) == 0)
3959                        full_standby = 1;
3960
3961                /* stop clocks */
3962                reg = stv090x_read_reg(state, STV090x_STOPCLK1);
3963                /* packet delineator 1 clock */
3964                STV090x_SETFIELD(reg, STOP_CLKPKDT1_FIELD, 1);
3965                /* ADC 1 clock */
3966                STV090x_SETFIELD(reg, STOP_CLKADCI1_FIELD, 1);
3967                /* FEC clock is shared between the two paths, only stop it
3968                   when full standby is possible */
3969                if (full_standby)
3970                        STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 1);
3971                if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
3972                        goto err_unlock;
3973                reg = stv090x_read_reg(state, STV090x_STOPCLK2);
3974                /* sampling 1 clock */
3975                STV090x_SETFIELD(reg, STOP_CLKSAMP1_FIELD, 1);
3976                /* viterbi 1 clock */
3977                STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, 1);
3978                /* TS clock is shared between the two paths, only stop it
3979                   when full standby is possible */
3980                if (full_standby)
3981                        STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 1);
3982                if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
3983                        goto err_unlock;
3984                break;
3985
3986        case STV090x_DEMODULATOR_1:
3987                /* power off ADC 2 */
3988                reg = stv090x_read_reg(state, STV090x_TSTTNR3);
3989                STV090x_SETFIELD(reg, ADC2_PON_FIELD, 0);
3990                if (stv090x_write_reg(state, STV090x_TSTTNR3, reg) < 0)
3991                        goto err_unlock;
3992                /* power off DiSEqC 2 */
3993                reg = stv090x_read_reg(state, STV090x_TSTTNR4);
3994                STV090x_SETFIELD(reg, DISEQC2_PON_FIELD, 0);
3995                if (stv090x_write_reg(state, STV090x_TSTTNR4, reg) < 0)
3996                        goto err_unlock;
3997
3998                /* check whether path 1 is already sleeping, that is when
3999                   ADC1 is off */
4000                reg = stv090x_read_reg(state, STV090x_TSTTNR1);
4001                if (STV090x_GETFIELD(reg, ADC1_PON_FIELD) == 0)
4002                        full_standby = 1;
4003
4004                /* stop clocks */
4005                reg = stv090x_read_reg(state, STV090x_STOPCLK1);
4006                /* packet delineator 2 clock */
4007                STV090x_SETFIELD(reg, STOP_CLKPKDT2_FIELD, 1);
4008                /* ADC 2 clock */
4009                STV090x_SETFIELD(reg, STOP_CLKADCI2_FIELD, 1);
4010                /* FEC clock is shared between the two paths, only stop it
4011                   when full standby is possible */
4012                if (full_standby)
4013                        STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 1);
4014                if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
4015                        goto err_unlock;
4016                reg = stv090x_read_reg(state, STV090x_STOPCLK2);
4017                /* sampling 2 clock */
4018                STV090x_SETFIELD(reg, STOP_CLKSAMP2_FIELD, 1);
4019                /* viterbi 2 clock */
4020                STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, 1);
4021                /* TS clock is shared between the two paths, only stop it
4022                   when full standby is possible */
4023                if (full_standby)
4024                        STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 1);
4025                if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
4026                        goto err_unlock;
4027                break;
4028
4029        default:
4030                dprintk(FE_ERROR, 1, "Wrong demodulator!");
4031                break;
4032        }
4033
4034        if (full_standby) {
4035                /* general power off */
4036                reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4037                STV090x_SETFIELD(reg, STANDBY_FIELD, 0x01);
4038                if (stv090x_write_reg(state, STV090x_SYNTCTRL, reg) < 0)
4039                        goto err_unlock;
4040        }
4041
4042        mutex_unlock(&state->internal->demod_lock);
4043        return 0;
4044
4045err_gateoff:
4046        stv090x_i2c_gate_ctrl(state, 0);
4047        goto err;
4048err_unlock:
4049        mutex_unlock(&state->internal->demod_lock);
4050err:
4051        dprintk(FE_ERROR, 1, "I/O error");
4052        return -1;
4053}
4054
4055static int stv090x_wakeup(struct dvb_frontend *fe)
4056{
4057        struct stv090x_state *state = fe->demodulator_priv;
4058        u32 reg;
4059
4060        dprintk(FE_DEBUG, 1, "Wake %s(%d) from standby",
4061                state->device == STV0900 ? "STV0900" : "STV0903",
4062                state->demod);
4063
4064        mutex_lock(&state->internal->demod_lock);
4065
4066        /* general power on */
4067        reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4068        STV090x_SETFIELD(reg, STANDBY_FIELD, 0x00);
4069        if (stv090x_write_reg(state, STV090x_SYNTCTRL, reg) < 0)
4070                goto err;
4071
4072        switch (state->demod) {
4073        case STV090x_DEMODULATOR_0:
4074                /* power on ADC 1 */
4075                reg = stv090x_read_reg(state, STV090x_TSTTNR1);
4076                STV090x_SETFIELD(reg, ADC1_PON_FIELD, 1);
4077                if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
4078                        goto err;
4079                /* power on DiSEqC 1 */
4080                reg = stv090x_read_reg(state, STV090x_TSTTNR2);
4081                STV090x_SETFIELD(reg, DISEQC1_PON_FIELD, 1);
4082                if (stv090x_write_reg(state, STV090x_TSTTNR2, reg) < 0)
4083                        goto err;
4084
4085                /* activate clocks */
4086                reg = stv090x_read_reg(state, STV090x_STOPCLK1);
4087                /* packet delineator 1 clock */
4088                STV090x_SETFIELD(reg, STOP_CLKPKDT1_FIELD, 0);
4089                /* ADC 1 clock */
4090                STV090x_SETFIELD(reg, STOP_CLKADCI1_FIELD, 0);
4091                /* FEC clock */
4092                STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 0);
4093                if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
4094                        goto err;
4095                reg = stv090x_read_reg(state, STV090x_STOPCLK2);
4096                /* sampling 1 clock */
4097                STV090x_SETFIELD(reg, STOP_CLKSAMP1_FIELD, 0);
4098                /* viterbi 1 clock */
4099                STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, 0);
4100                /* TS clock */
4101                STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 0);
4102                if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
4103                        goto err;
4104                break;
4105
4106        case STV090x_DEMODULATOR_1:
4107                /* power on ADC 2 */
4108                reg = stv090x_read_reg(state, STV090x_TSTTNR3);
4109                STV090x_SETFIELD(reg, ADC2_PON_FIELD, 1);
4110                if (stv090x_write_reg(state, STV090x_TSTTNR3, reg) < 0)
4111                        goto err;
4112                /* power on DiSEqC 2 */
4113                reg = stv090x_read_reg(state, STV090x_TSTTNR4);
4114                STV090x_SETFIELD(reg, DISEQC2_PON_FIELD, 1);
4115                if (stv090x_write_reg(state, STV090x_TSTTNR4, reg) < 0)
4116                        goto err;
4117
4118                /* activate clocks */
4119                reg = stv090x_read_reg(state, STV090x_STOPCLK1);
4120                /* packet delineator 2 clock */
4121                STV090x_SETFIELD(reg, STOP_CLKPKDT2_FIELD, 0);
4122                /* ADC 2 clock */
4123                STV090x_SETFIELD(reg, STOP_CLKADCI2_FIELD, 0);
4124                /* FEC clock */
4125                STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 0);
4126                if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
4127                        goto err;
4128                reg = stv090x_read_reg(state, STV090x_STOPCLK2);
4129                /* sampling 2 clock */
4130                STV090x_SETFIELD(reg, STOP_CLKSAMP2_FIELD, 0);
4131                /* viterbi 2 clock */
4132                STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, 0);
4133                /* TS clock */
4134                STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 0);
4135                if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
4136                        goto err;
4137                break;
4138
4139        default:
4140                dprintk(FE_ERROR, 1, "Wrong demodulator!");
4141                break;
4142        }
4143
4144        mutex_unlock(&state->internal->demod_lock);
4145        return 0;
4146err:
4147        mutex_unlock(&state->internal->demod_lock);
4148        dprintk(FE_ERROR, 1, "I/O error");
4149        return -1;
4150}
4151
4152static void stv090x_release(struct dvb_frontend *fe)
4153{
4154        struct stv090x_state *state = fe->demodulator_priv;
4155
4156        state->internal->num_used--;
4157        if (state->internal->num_used <= 0) {
4158
4159                dprintk(FE_ERROR, 1, "Actually removing");
4160
4161                remove_dev(state->internal);
4162                kfree(state->internal);
4163        }
4164
4165        kfree(state);
4166}
4167
4168static int stv090x_ldpc_mode(struct stv090x_state *state, enum stv090x_mode ldpc_mode)
4169{
4170        u32 reg = 0;
4171
4172        reg = stv090x_read_reg(state, STV090x_GENCFG);
4173
4174        switch (ldpc_mode) {
4175        case STV090x_DUAL:
4176        default:
4177                if ((state->demod_mode != STV090x_DUAL) || (STV090x_GETFIELD(reg, DDEMOD_FIELD) != 1)) {
4178                        /* set LDPC to dual mode */
4179                        if (stv090x_write_reg(state, STV090x_GENCFG, 0x1d) < 0)
4180                                goto err;
4181
4182                        state->demod_mode = STV090x_DUAL;
4183
4184                        reg = stv090x_read_reg(state, STV090x_TSTRES0);
4185                        STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x1);
4186                        if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4187                                goto err;
4188                        STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x0);
4189                        if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4190                                goto err;
4191
4192                        if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
4193                                goto err;
4194                        if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xff) < 0)
4195                                goto err;
4196                        if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xff) < 0)
4197                                goto err;
4198                        if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xff) < 0)
4199                                goto err;
4200                        if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xff) < 0)
4201                                goto err;
4202                        if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xff) < 0)
4203                                goto err;
4204                        if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xff) < 0)
4205                                goto err;
4206
4207                        if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xcc) < 0)
4208                                goto err;
4209                        if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xcc) < 0)
4210                                goto err;
4211                        if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xcc) < 0)
4212                                goto err;
4213                        if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xcc) < 0)
4214                                goto err;
4215                        if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xcc) < 0)
4216                                goto err;
4217                        if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xcc) < 0)
4218                                goto err;
4219                        if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xcc) < 0)
4220                                goto err;
4221
4222                        if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xff) < 0)
4223                                goto err;
4224                        if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xcf) < 0)
4225                                goto err;
4226                }
4227                break;
4228
4229        case STV090x_SINGLE:
4230                if (stv090x_stop_modcod(state) < 0)
4231                        goto err;
4232                if (stv090x_activate_modcod_single(state) < 0)
4233                        goto err;
4234
4235                if (state->demod == STV090x_DEMODULATOR_1) {
4236                        if (stv090x_write_reg(state, STV090x_GENCFG, 0x06) < 0) /* path 2 */
4237                                goto err;
4238                } else {
4239                        if (stv090x_write_reg(state, STV090x_GENCFG, 0x04) < 0) /* path 1 */
4240                                goto err;
4241                }
4242
4243                reg = stv090x_read_reg(state, STV090x_TSTRES0);
4244                STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x1);
4245                if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4246                        goto err;
4247                STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x0);
4248                if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4249                        goto err;
4250
4251                reg = STV090x_READ_DEMOD(state, PDELCTRL1);
4252                STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x01);
4253                if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
4254                        goto err;
4255                STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x00);
4256                if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
4257                        goto err;
4258                break;
4259        }
4260
4261        return 0;
4262err:
4263        dprintk(FE_ERROR, 1, "I/O error");
4264        return -1;
4265}
4266
4267/* return (Hz), clk in Hz*/
4268static u32 stv090x_get_mclk(struct stv090x_state *state)
4269{
4270        const struct stv090x_config *config = state->config;
4271        u32 div, reg;
4272        u8 ratio;
4273
4274        div = stv090x_read_reg(state, STV090x_NCOARSE);
4275        reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4276        ratio = STV090x_GETFIELD(reg, SELX1RATIO_FIELD) ? 4 : 6;
4277
4278        return (div + 1) * config->xtal / ratio; /* kHz */
4279}
4280
4281static int stv090x_set_mclk(struct stv090x_state *state, u32 mclk, u32 clk)
4282{
4283        const struct stv090x_config *config = state->config;
4284        u32 reg, div, clk_sel;
4285
4286        reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4287        clk_sel = ((STV090x_GETFIELD(reg, SELX1RATIO_FIELD) == 1) ? 4 : 6);
4288
4289        div = ((clk_sel * mclk) / config->xtal) - 1;
4290
4291        reg = stv090x_read_reg(state, STV090x_NCOARSE);
4292        STV090x_SETFIELD(reg, M_DIV_FIELD, div);
4293        if (stv090x_write_reg(state, STV090x_NCOARSE, reg) < 0)
4294                goto err;
4295
4296        state->internal->mclk = stv090x_get_mclk(state);
4297
4298        /*Set the DiseqC frequency to 22KHz */
4299        div = state->internal->mclk / 704000;
4300        if (STV090x_WRITE_DEMOD(state, F22TX, div) < 0)
4301                goto err;
4302        if (STV090x_WRITE_DEMOD(state, F22RX, div) < 0)
4303                goto err;
4304
4305        return 0;
4306err:
4307        dprintk(FE_ERROR, 1, "I/O error");
4308        return -1;
4309}
4310
4311static int stv0900_set_tspath(struct stv090x_state *state)
4312{
4313        u32 reg;
4314
4315        if (state->internal->dev_ver >= 0x20) {
4316                switch (state->config->ts1_mode) {
4317                case STV090x_TSMODE_PARALLEL_PUNCTURED:
4318                case STV090x_TSMODE_DVBCI:
4319                        switch (state->config->ts2_mode) {
4320                        case STV090x_TSMODE_SERIAL_PUNCTURED:
4321                        case STV090x_TSMODE_SERIAL_CONTINUOUS:
4322                        default:
4323                                stv090x_write_reg(state, STV090x_TSGENERAL, 0x00);
4324                                break;
4325
4326                        case STV090x_TSMODE_PARALLEL_PUNCTURED:
4327                        case STV090x_TSMODE_DVBCI:
4328                                if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x06) < 0) /* Mux'd stream mode */
4329                                        goto err;
4330                                reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4331                                STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4332                                if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4333                                        goto err;
4334                                reg = stv090x_read_reg(state, STV090x_P2_TSCFGM);
4335                                STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4336                                if (stv090x_write_reg(state, STV090x_P2_TSCFGM, reg) < 0)
4337                                        goto err;
4338                                if (stv090x_write_reg(state, STV090x_P1_TSSPEED, 0x14) < 0)
4339                                        goto err;
4340                                if (stv090x_write_reg(state, STV090x_P2_TSSPEED, 0x28) < 0)
4341                                        goto err;
4342                                break;
4343                        }
4344                        break;
4345
4346                case STV090x_TSMODE_SERIAL_PUNCTURED:
4347                case STV090x_TSMODE_SERIAL_CONTINUOUS:
4348                default:
4349                        switch (state->config->ts2_mode) {
4350                        case STV090x_TSMODE_SERIAL_PUNCTURED:
4351                        case STV090x_TSMODE_SERIAL_CONTINUOUS:
4352                        default:
4353                                if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c) < 0)
4354                                        goto err;
4355                                break;
4356
4357                        case STV090x_TSMODE_PARALLEL_PUNCTURED:
4358                        case STV090x_TSMODE_DVBCI:
4359                                if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0a) < 0)
4360                                        goto err;
4361                                break;
4362                        }
4363                        break;
4364                }
4365        } else {
4366                switch (state->config->ts1_mode) {
4367                case STV090x_TSMODE_PARALLEL_PUNCTURED:
4368                case STV090x_TSMODE_DVBCI:
4369                        switch (state->config->ts2_mode) {
4370                        case STV090x_TSMODE_SERIAL_PUNCTURED:
4371                        case STV090x_TSMODE_SERIAL_CONTINUOUS:
4372                        default:
4373                                stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x10);
4374                                break;
4375
4376                        case STV090x_TSMODE_PARALLEL_PUNCTURED:
4377                        case STV090x_TSMODE_DVBCI:
4378                                stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x16);
4379                                reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4380                                STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4381                                if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4382                                        goto err;
4383                                reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4384                                STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 0);
4385                                if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4386                                        goto err;
4387                                if (stv090x_write_reg(state, STV090x_P1_TSSPEED, 0x14) < 0)
4388                                        goto err;
4389                                if (stv090x_write_reg(state, STV090x_P2_TSSPEED, 0x28) < 0)
4390                                        goto err;
4391                                break;
4392                        }
4393                        break;
4394
4395                case STV090x_TSMODE_SERIAL_PUNCTURED:
4396                case STV090x_TSMODE_SERIAL_CONTINUOUS:
4397                default:
4398                        switch (state->config->ts2_mode) {
4399                        case STV090x_TSMODE_SERIAL_PUNCTURED:
4400                        case STV090x_TSMODE_SERIAL_CONTINUOUS:
4401                        default:
4402                                stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x14);
4403                                break;
4404
4405                        case STV090x_TSMODE_PARALLEL_PUNCTURED:
4406                        case STV090x_TSMODE_DVBCI:
4407                                stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x12);
4408                                break;
4409                        }
4410                        break;
4411                }
4412        }
4413
4414        switch (state->config->ts1_mode) {
4415        case STV090x_TSMODE_PARALLEL_PUNCTURED:
4416                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4417                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4418                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4419                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4420                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4421                        goto err;
4422                break;
4423
4424        case STV090x_TSMODE_DVBCI:
4425                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4426                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4427                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4428                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4429                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4430                        goto err;
4431                break;
4432
4433        case STV090x_TSMODE_SERIAL_PUNCTURED:
4434                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4435                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4436                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4437                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4438                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4439                        goto err;
4440                break;
4441
4442        case STV090x_TSMODE_SERIAL_CONTINUOUS:
4443                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4444                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4445                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4446                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4447                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4448                        goto err;
4449                break;
4450
4451        default:
4452                break;
4453        }
4454
4455        switch (state->config->ts2_mode) {
4456        case STV090x_TSMODE_PARALLEL_PUNCTURED:
4457                reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4458                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4459                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4460                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4461                if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4462                        goto err;
4463                break;
4464
4465        case STV090x_TSMODE_DVBCI:
4466                reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4467                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4468                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4469                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4470                if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4471                        goto err;
4472                break;
4473
4474        case STV090x_TSMODE_SERIAL_PUNCTURED:
4475                reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4476                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4477                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4478                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4479                if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4480                        goto err;
4481                break;
4482
4483        case STV090x_TSMODE_SERIAL_CONTINUOUS:
4484                reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4485                STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4486                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4487                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4488                if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4489                        goto err;
4490                break;
4491
4492        default:
4493                break;
4494        }
4495
4496        if (state->config->ts1_clk > 0) {
4497                u32 speed;
4498
4499                switch (state->config->ts1_mode) {
4500                case STV090x_TSMODE_PARALLEL_PUNCTURED:
4501                case STV090x_TSMODE_DVBCI:
4502                default:
4503                        speed = state->internal->mclk /
4504                                (state->config->ts1_clk / 4);
4505                        if (speed < 0x08)
4506                                speed = 0x08;
4507                        if (speed > 0xFF)
4508                                speed = 0xFF;
4509                        break;
4510                case STV090x_TSMODE_SERIAL_PUNCTURED:
4511                case STV090x_TSMODE_SERIAL_CONTINUOUS:
4512                        speed = state->internal->mclk /
4513                                (state->config->ts1_clk / 32);
4514                        if (speed < 0x20)
4515                                speed = 0x20;
4516                        if (speed > 0xFF)
4517                                speed = 0xFF;
4518                        break;
4519                }
4520                reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4521                STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4522                if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4523                        goto err;
4524                if (stv090x_write_reg(state, STV090x_P1_TSSPEED, speed) < 0)
4525                        goto err;
4526        }
4527
4528        if (state->config->ts2_clk > 0) {
4529                u32 speed;
4530
4531                switch (state->config->ts2_mode) {
4532                case STV090x_TSMODE_PARALLEL_PUNCTURED:
4533                case STV090x_TSMODE_DVBCI:
4534                default:
4535                        speed = state->internal->mclk /
4536                                (state->config->ts2_clk / 4);
4537                        if (speed < 0x08)
4538                                speed = 0x08;
4539                        if (speed > 0xFF)
4540                                speed = 0xFF;
4541                        break;
4542                case STV090x_TSMODE_SERIAL_PUNCTURED:
4543                case STV090x_TSMODE_SERIAL_CONTINUOUS:
4544                        speed = state->internal->mclk /
4545                                (state->config->ts2_clk / 32);
4546                        if (speed < 0x20)
4547                                speed = 0x20;
4548                        if (speed > 0xFF)
4549                                speed = 0xFF;
4550                        break;
4551                }
4552                reg = stv090x_read_reg(state, STV090x_P2_TSCFGM);
4553                STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4554                if (stv090x_write_reg(state, STV090x_P2_TSCFGM, reg) < 0)
4555                        goto err;
4556                if (stv090x_write_reg(state, STV090x_P2_TSSPEED, speed) < 0)
4557                        goto err;
4558        }
4559
4560        reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4561        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
4562        if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4563                goto err;
4564        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
4565        if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4566                goto err;
4567
4568        reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4569        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
4570        if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4571                goto err;
4572        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
4573        if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4574                goto err;
4575
4576        return 0;
4577err:
4578        dprintk(FE_ERROR, 1, "I/O error");
4579        return -1;
4580}
4581
4582static int stv0903_set_tspath(struct stv090x_state *state)
4583{
4584        u32 reg;
4585
4586        if (state->internal->dev_ver >= 0x20) {
4587                switch (state->config->ts1_mode) {
4588                case STV090x_TSMODE_PARALLEL_PUNCTURED:
4589                case STV090x_TSMODE_DVBCI:
4590                        stv090x_write_reg(state, STV090x_TSGENERAL, 0x00);
4591                        break;
4592
4593                case STV090x_TSMODE_SERIAL_PUNCTURED:
4594                case STV090x_TSMODE_SERIAL_CONTINUOUS:
4595                default:
4596                        stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c);
4597                        break;
4598                }
4599        } else {
4600                switch (state->config->ts1_mode) {
4601                case STV090x_TSMODE_PARALLEL_PUNCTURED:
4602                case STV090x_TSMODE_DVBCI:
4603                        stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x10);
4604                        break;
4605
4606                case STV090x_TSMODE_SERIAL_PUNCTURED:
4607                case STV090x_TSMODE_SERIAL_CONTINUOUS:
4608                default:
4609                        stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x14);
4610                        break;
4611                }
4612        }
4613
4614        switch (state->config->ts1_mode) {
4615        case STV090x_TSMODE_PARALLEL_PUNCTURED:
4616                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4617                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4618                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4619                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4620                        goto err;
4621                break;
4622
4623        case STV090x_TSMODE_DVBCI:
4624                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4625                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4626                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4627                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4628                        goto err;
4629                break;
4630
4631        case STV090x_TSMODE_SERIAL_PUNCTURED:
4632                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4633                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4634                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4635                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4636                        goto err;
4637                break;
4638
4639        case STV090x_TSMODE_SERIAL_CONTINUOUS:
4640                reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4641                STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4642                STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4643                if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4644                        goto err;
4645                break;
4646
4647        default:
4648                break;
4649        }
4650
4651        if (state->config->ts1_clk > 0) {
4652                u32 speed;
4653
4654                switch (state->config->ts1_mode) {
4655                case STV090x_TSMODE_PARALLEL_PUNCTURED:
4656                case STV090x_TSMODE_DVBCI:
4657                default:
4658                        speed = state->internal->mclk /
4659                                (state->config->ts1_clk / 4);
4660                        if (speed < 0x08)
4661                                speed = 0x08;
4662                        if (speed > 0xFF)
4663                                speed = 0xFF;
4664                        break;
4665                case STV090x_TSMODE_SERIAL_PUNCTURED:
4666                case STV090x_TSMODE_SERIAL_CONTINUOUS:
4667                        speed = state->internal->mclk /
4668                                (state->config->ts1_clk / 32);
4669                        if (speed < 0x20)
4670                                speed = 0x20;
4671                        if (speed > 0xFF)
4672                                speed = 0xFF;
4673                        break;
4674                }
4675                reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4676                STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4677                if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4678                        goto err;
4679                if (stv090x_write_reg(state, STV090x_P1_TSSPEED, speed) < 0)
4680                        goto err;
4681        }
4682
4683        reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4684        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
4685        if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4686                goto err;
4687        STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
4688        if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4689                goto err;
4690
4691        return 0;
4692err:
4693        dprintk(FE_ERROR, 1, "I/O error");
4694        return -1;
4695}
4696
4697static int stv090x_init(struct dvb_frontend *fe)
4698{
4699        struct stv090x_state *state = fe->demodulator_priv;
4700        const struct stv090x_config *config = state->config;
4701        u32 reg;
4702
4703        if (state->internal->mclk == 0) {
4704                /* call tuner init to configure the tuner's clock output
4705                   divider directly before setting up the master clock of
4706                   the stv090x. */
4707                if (stv090x_i2c_gate_ctrl(state, 1) < 0)
4708                        goto err;
4709
4710                if (config->tuner_init) {
4711                        if (config->tuner_init(fe) < 0)
4712                                goto err_gateoff;
4713                }
4714
4715                if (stv090x_i2c_gate_ctrl(state, 0) < 0)
4716                        goto err;
4717
4718                stv090x_set_mclk(state, 135000000, config->xtal); /* 135 Mhz */
4719                msleep(5);
4720                if (stv090x_write_reg(state, STV090x_SYNTCTRL,
4721                                      0x20 | config->clk_mode) < 0)
4722                        goto err;
4723                stv090x_get_mclk(state);
4724        }
4725
4726        if (stv090x_wakeup(fe) < 0) {
4727                dprintk(FE_ERROR, 1, "Error waking device");
4728                goto err;
4729        }
4730
4731        if (stv090x_ldpc_mode(state, state->demod_mode) < 0)
4732                goto err;
4733
4734        reg = STV090x_READ_DEMOD(state, TNRCFG2);
4735        STV090x_SETFIELD_Px(reg, TUN_IQSWAP_FIELD, state->inversion);
4736        if (STV090x_WRITE_DEMOD(state, TNRCFG2, reg) < 0)
4737                goto err;
4738        reg = STV090x_READ_DEMOD(state, DEMOD);
4739        STV090x_SETFIELD_Px(reg, ROLLOFF_CONTROL_FIELD, state->rolloff);
4740        if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
4741                goto err;
4742
4743        if (stv090x_i2c_gate_ctrl(state, 1) < 0)
4744                goto err;
4745
4746        if (config->tuner_set_mode) {
4747                if (config->tuner_set_mode(fe, TUNER_WAKE) < 0)
4748                        goto err_gateoff;
4749        }
4750
4751        if (config->tuner_init) {
4752                if (config->tuner_init(fe) < 0)
4753                        goto err_gateoff;
4754        }
4755
4756        if (stv090x_i2c_gate_ctrl(state, 0) < 0)
4757                goto err;
4758
4759        if (state->device == STV0900) {
4760                if (stv0900_set_tspath(state) < 0)
4761                        goto err;
4762        } else {
4763                if (stv0903_set_tspath(state) < 0)
4764                        goto err;
4765        }
4766
4767        return 0;
4768
4769err_gateoff:
4770        stv090x_i2c_gate_ctrl(state, 0);
4771err:
4772        dprintk(FE_ERROR, 1, "I/O error");
4773        return -1;
4774}
4775
4776static int stv090x_setup(struct dvb_frontend *fe)
4777{
4778        struct stv090x_state *state = fe->demodulator_priv;
4779        const struct stv090x_config *config = state->config;
4780        const struct stv090x_reg *stv090x_initval = NULL;
4781        const struct stv090x_reg *stv090x_cut20_val = NULL;
4782        unsigned long t1_size = 0, t2_size = 0;
4783        u32 reg = 0;
4784
4785        int i;
4786
4787        if (state->device == STV0900) {
4788                dprintk(FE_DEBUG, 1, "Initializing STV0900");
4789                stv090x_initval = stv0900_initval;
4790                t1_size = ARRAY_SIZE(stv0900_initval);
4791                stv090x_cut20_val = stv0900_cut20_val;
4792                t2_size = ARRAY_SIZE(stv0900_cut20_val);
4793        } else if (state->device == STV0903) {
4794                dprintk(FE_DEBUG, 1, "Initializing STV0903");
4795                stv090x_initval = stv0903_initval;
4796                t1_size = ARRAY_SIZE(stv0903_initval);
4797                stv090x_cut20_val = stv0903_cut20_val;
4798                t2_size = ARRAY_SIZE(stv0903_cut20_val);
4799        }
4800
4801        /* STV090x init */
4802
4803        /* Stop Demod */
4804        if (stv090x_write_reg(state, STV090x_P1_DMDISTATE, 0x5c) < 0)
4805                goto err;
4806        if (state->device == STV0900)
4807                if (stv090x_write_reg(state, STV090x_P2_DMDISTATE, 0x5c) < 0)
4808                        goto err;
4809
4810        msleep(5);
4811
4812        /* Set No Tuner Mode */
4813        if (stv090x_write_reg(state, STV090x_P1_TNRCFG, 0x6c) < 0)
4814                goto err;
4815        if (state->device == STV0900)
4816                if (stv090x_write_reg(state, STV090x_P2_TNRCFG, 0x6c) < 0)
4817                        goto err;
4818
4819        /* I2C repeater OFF */
4820        STV090x_SETFIELD_Px(reg, ENARPT_LEVEL_FIELD, config->repeater_level);
4821        if (stv090x_write_reg(state, STV090x_P1_I2CRPT, reg) < 0)
4822                goto err;
4823        if (state->device == STV0900)
4824                if (stv090x_write_reg(state, STV090x_P2_I2CRPT, reg) < 0)
4825                        goto err;
4826
4827        if (stv090x_write_reg(state, STV090x_NCOARSE, 0x13) < 0) /* set PLL divider */
4828                goto err;
4829        msleep(5);
4830        if (stv090x_write_reg(state, STV090x_I2CCFG, 0x08) < 0) /* 1/41 oversampling */
4831                goto err;
4832        if (stv090x_write_reg(state, STV090x_SYNTCTRL, 0x20 | config->clk_mode) < 0) /* enable PLL */
4833                goto err;
4834        msleep(5);
4835
4836        /* write initval */
4837        dprintk(FE_DEBUG, 1, "Setting up initial values");
4838        for (i = 0; i < t1_size; i++) {
4839                if (stv090x_write_reg(state, stv090x_initval[i].addr, stv090x_initval[i].data) < 0)
4840                        goto err;
4841        }
4842
4843        state->internal->dev_ver = stv090x_read_reg(state, STV090x_MID);
4844        if (state->internal->dev_ver >= 0x20) {
4845                if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c) < 0)
4846                        goto err;
4847
4848                /* write cut20_val*/
4849                dprintk(FE_DEBUG, 1, "Setting up Cut 2.0 initial values");
4850                for (i = 0; i < t2_size; i++) {
4851                        if (stv090x_write_reg(state, stv090x_cut20_val[i].addr, stv090x_cut20_val[i].data) < 0)
4852                                goto err;
4853                }
4854
4855        } else if (state->internal->dev_ver < 0x20) {
4856                dprintk(FE_ERROR, 1, "ERROR: Unsupported Cut: 0x%02x!",
4857                        state->internal->dev_ver);
4858
4859                goto err;
4860        } else if (state->internal->dev_ver > 0x30) {
4861                /* we shouldn't bail out from here */
4862                dprintk(FE_ERROR, 1, "INFO: Cut: 0x%02x probably incomplete support!",
4863                        state->internal->dev_ver);
4864        }
4865
4866        /* ADC1 range */
4867        reg = stv090x_read_reg(state, STV090x_TSTTNR1);
4868        STV090x_SETFIELD(reg, ADC1_INMODE_FIELD,
4869                (config->adc1_range == STV090x_ADC_1Vpp) ? 0 : 1);
4870        if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
4871                goto err;
4872
4873        /* ADC2 range */
4874        reg = stv090x_read_reg(state, STV090x_TSTTNR3);
4875        STV090x_SETFIELD(reg, ADC2_INMODE_FIELD,
4876                (config->adc2_range == STV090x_ADC_1Vpp) ? 0 : 1);
4877        if (stv090x_write_reg(state, STV090x_TSTTNR3, reg) < 0)
4878                goto err;
4879
4880        if (stv090x_write_reg(state, STV090x_TSTRES0, 0x80) < 0)
4881                goto err;
4882        if (stv090x_write_reg(state, STV090x_TSTRES0, 0x00) < 0)
4883                goto err;
4884
4885        return 0;
4886err:
4887        dprintk(FE_ERROR, 1, "I/O error");
4888        return -1;
4889}
4890
4891static int stv090x_set_gpio(struct dvb_frontend *fe, u8 gpio, u8 dir,
4892                            u8 value, u8 xor_value)
4893{
4894        struct stv090x_state *state = fe->demodulator_priv;
4895        u8 reg = 0;
4896
4897        STV090x_SETFIELD(reg, GPIOx_OPD_FIELD, dir);
4898        STV090x_SETFIELD(reg, GPIOx_CONFIG_FIELD, value);
4899        STV090x_SETFIELD(reg, GPIOx_XOR_FIELD, xor_value);
4900
4901        return stv090x_write_reg(state, STV090x_GPIOxCFG(gpio), reg);
4902}
4903
4904static const struct dvb_frontend_ops stv090x_ops = {
4905        .delsys = { SYS_DVBS, SYS_DVBS2, SYS_DSS },
4906        .info = {
4907                .name                   = "STV090x Multistandard",
4908                .frequency_min          = 950000,
4909                .frequency_max          = 2150000,
4910                .frequency_stepsize     = 0,
4911                .frequency_tolerance    = 0,
4912                .symbol_rate_min        = 1000000,
4913                .symbol_rate_max        = 45000000,
4914                .caps                   = FE_CAN_INVERSION_AUTO |
4915                                          FE_CAN_FEC_AUTO       |
4916                                          FE_CAN_QPSK           |
4917                                          FE_CAN_2G_MODULATION
4918        },
4919
4920        .release                        = stv090x_release,
4921        .init                           = stv090x_init,
4922
4923        .sleep                          = stv090x_sleep,
4924        .get_frontend_algo              = stv090x_frontend_algo,
4925
4926        .diseqc_send_master_cmd         = stv090x_send_diseqc_msg,
4927        .diseqc_send_burst              = stv090x_send_diseqc_burst,
4928        .diseqc_recv_slave_reply        = stv090x_recv_slave_reply,
4929        .set_tone                       = stv090x_set_tone,
4930
4931        .search                         = stv090x_search,
4932        .read_status                    = stv090x_read_status,
4933        .read_ber                       = stv090x_read_per,
4934        .read_signal_strength           = stv090x_read_signal_strength,
4935        .read_snr                       = stv090x_read_cnr,
4936};
4937
4938
4939struct dvb_frontend *stv090x_attach(struct stv090x_config *config,
4940                                    struct i2c_adapter *i2c,
4941                                    enum stv090x_demodulator demod)
4942{
4943        struct stv090x_state *state = NULL;
4944        struct stv090x_dev *temp_int;
4945
4946        state = kzalloc(sizeof (struct stv090x_state), GFP_KERNEL);
4947        if (state == NULL)
4948                goto error;
4949
4950        state->verbose                          = &verbose;
4951        state->config                           = config;
4952        state->i2c                              = i2c;
4953        state->frontend.ops                     = stv090x_ops;
4954        state->frontend.demodulator_priv        = state;
4955        state->demod                            = demod;
4956        state->demod_mode                       = config->demod_mode; /* Single or Dual mode */
4957        state->device                           = config->device;
4958        state->rolloff                          = STV090x_RO_35; /* default */
4959
4960        temp_int = find_dev(state->i2c,
4961                                state->config->address);
4962
4963        if ((temp_int != NULL) && (state->demod_mode == STV090x_DUAL)) {
4964                state->internal = temp_int->internal;
4965                state->internal->num_used++;
4966                dprintk(FE_INFO, 1, "Found Internal Structure!");
4967        } else {
4968                state->internal = kmalloc(sizeof(struct stv090x_internal),
4969                                          GFP_KERNEL);
4970                if (!state->internal)
4971                        goto error;
4972                temp_int = append_internal(state->internal);
4973                if (!temp_int) {
4974                        kfree(state->internal);
4975                        goto error;
4976                }
4977                state->internal->num_used = 1;
4978                state->internal->mclk = 0;
4979                state->internal->dev_ver = 0;
4980                state->internal->i2c_adap = state->i2c;
4981                state->internal->i2c_addr = state->config->address;
4982                dprintk(FE_INFO, 1, "Create New Internal Structure!");
4983
4984                mutex_init(&state->internal->demod_lock);
4985                mutex_init(&state->internal->tuner_lock);
4986
4987                if (stv090x_setup(&state->frontend) < 0) {
4988                        dprintk(FE_ERROR, 1, "Error setting up device");
4989                        goto err_remove;
4990                }
4991        }
4992
4993        if (state->internal->dev_ver >= 0x30)
4994                state->frontend.ops.info.caps |= FE_CAN_MULTISTREAM;
4995
4996        /* workaround for stuck DiSEqC output */
4997        if (config->diseqc_envelope_mode)
4998                stv090x_send_diseqc_burst(&state->frontend, SEC_MINI_A);
4999
5000        config->set_gpio = stv090x_set_gpio;
5001
5002        dprintk(FE_ERROR, 1, "Attaching %s demodulator(%d) Cut=0x%02x",
5003               state->device == STV0900 ? "STV0900" : "STV0903",
5004               demod,
5005               state->internal->dev_ver);
5006
5007        return &state->frontend;
5008
5009err_remove:
5010        remove_dev(state->internal);
5011        kfree(state->internal);
5012error:
5013        kfree(state);
5014        return NULL;
5015}
5016EXPORT_SYMBOL(stv090x_attach);
5017MODULE_PARM_DESC(verbose, "Set Verbosity level");
5018MODULE_AUTHOR("Manu Abraham");
5019MODULE_DESCRIPTION("STV090x Multi-Std Broadcast frontend");
5020MODULE_LICENSE("GPL");
5021