drivers/media/dvb/frontends/stv090x.c

   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/mutex.h>
  27
  28 #include <linux/dvb/frontend.h>
  29 #include "dvb_frontend.h"
  30
  31 #include "stv6110x.h" /* for demodulator internal modes */
  32
  33 #include "stv090x_reg.h"
  34 #include "stv090x.h"
  35 #include "stv090x_priv.h"
  36
  37 static unsigned int verbose;
  38 module_param(verbose, int, 0644);
  39
  40 struct mutex demod_lock;
  41
  42 /* DVBS1 and DSS C/N Lookup table */
  43 static const struct stv090x_tab stv090x_s1cn_tab[] = {
  44         {   0, 8917 }, /*  0.0dB */
  45         {   5, 8801 }, /*  0.5dB */
  46         {  10, 8667 }, /*  1.0dB */
  47         {  15, 8522 }, /*  1.5dB */
  48         {  20, 8355 }, /*  2.0dB */
  49         {  25, 8175 }, /*  2.5dB */
  50         {  30, 7979 }, /*  3.0dB */
  51         {  35, 7763 }, /*  3.5dB */
  52         {  40, 7530 }, /*  4.0dB */
  53         {  45, 7282 }, /*  4.5dB */
  54         {  50, 7026 }, /*  5.0dB */
  55         {  55, 6781 }, /*  5.5dB */
  56         {  60, 6514 }, /*  6.0dB */
  57         {  65, 6241 }, /*  6.5dB */
  58         {  70, 5965 }, /*  7.0dB */
  59         {  75, 5690 }, /*  7.5dB */
  60         {  80, 5424 }, /*  8.0dB */
  61         {  85, 5161 }, /*  8.5dB */
  62         {  90, 4902 }, /*  9.0dB */
  63         {  95, 4654 }, /*  9.5dB */
  64         { 100, 4417 }, /* 10.0dB */
  65         { 105, 4186 }, /* 10.5dB */
  66         { 110, 3968 }, /* 11.0dB */
  67         { 115, 3757 }, /* 11.5dB */
  68         { 120, 3558 }, /* 12.0dB */
  69         { 125, 3366 }, /* 12.5dB */
  70         { 130, 3185 }, /* 13.0dB */
  71         { 135, 3012 }, /* 13.5dB */
  72         { 140, 2850 }, /* 14.0dB */
  73         { 145, 2698 }, /* 14.5dB */
  74         { 150, 2550 }, /* 15.0dB */
  75         { 160, 2283 }, /* 16.0dB */
  76         { 170, 2042 }, /* 17.0dB */
  77         { 180, 1827 }, /* 18.0dB */
  78         { 190, 1636 }, /* 19.0dB */
  79         { 200, 1466 }, /* 20.0dB */
  80         { 210, 1315 }, /* 21.0dB */
  81         { 220, 1181 }, /* 22.0dB */
  82         { 230, 1064 }, /* 23.0dB */
  83         { 240,  960 }, /* 24.0dB */
  84         { 250,  869 }, /* 25.0dB */
  85         { 260,  792 }, /* 26.0dB */
  86         { 270,  724 }, /* 27.0dB */
  87         { 280,  665 }, /* 28.0dB */
  88         { 290,  616 }, /* 29.0dB */
  89         { 300,  573 }, /* 30.0dB */
  90         { 310,  537 }, /* 31.0dB */
  91         { 320,  507 }, /* 32.0dB */
  92         { 330,  483 }, /* 33.0dB */
  93         { 400,  398 }, /* 40.0dB */
  94         { 450,  381 }, /* 45.0dB */
  95         { 500,  377 }  /* 50.0dB */
  96 };
  97
  98 /* DVBS2 C/N Lookup table */
  99 static const struct stv090x_tab stv090x_s2cn_tab[] = {
 100         { -30, 13348 }, /* -3.0dB */
 101         { -20, 12640 }, /* -2d.0B */
 102         { -10, 11883 }, /* -1.0dB */
 103         {   0, 11101 }, /* -0.0dB */
 104         {   5, 10718 }, /*  0.5dB */
 105         {  10, 10339 }, /*  1.0dB */
 106         {  15,  9947 }, /*  1.5dB */
 107         {  20,  9552 }, /*  2.0dB */
 108         {  25,  9183 }, /*  2.5dB */
 109         {  30,  8799 }, /*  3.0dB */
 110         {  35,  8422 }, /*  3.5dB */
 111         {  40,  8062 }, /*  4.0dB */
 112         {  45,  7707 }, /*  4.5dB */
 113         {  50,  7353 }, /*  5.0dB */
 114         {  55,  7025 }, /*  5.5dB */
 115         {  60,  6684 }, /*  6.0dB */
 116         {  65,  6331 }, /*  6.5dB */
 117         {  70,  6036 }, /*  7.0dB */
 118         {  75,  5727 }, /*  7.5dB */
 119         {  80,  5437 }, /*  8.0dB */
 120         {  85,  5164 }, /*  8.5dB */
 121         {  90,  4902 }, /*  9.0dB */
 122         {  95,  4653 }, /*  9.5dB */
 123         { 100,  4408 }, /* 10.0dB */
 124         { 105,  4187 }, /* 10.5dB */
 125         { 110,  3961 }, /* 11.0dB */
 126         { 115,  3751 }, /* 11.5dB */
 127         { 120,  3558 }, /* 12.0dB */
 128         { 125,  3368 }, /* 12.5dB */
 129         { 130,  3191 }, /* 13.0dB */
 130         { 135,  3017 }, /* 13.5dB */
 131         { 140,  2862 }, /* 14.0dB */
 132         { 145,  2710 }, /* 14.5dB */
 133         { 150,  2565 }, /* 15.0dB */
 134         { 160,  2300 }, /* 16.0dB */
 135         { 170,  2058 }, /* 17.0dB */
 136         { 180,  1849 }, /* 18.0dB */
 137         { 190,  1663 }, /* 19.0dB */
 138         { 200,  1495 }, /* 20.0dB */
 139         { 210,  1349 }, /* 21.0dB */
 140         { 220,  1222 }, /* 22.0dB */
 141         { 230,  1110 }, /* 23.0dB */
 142         { 240,  1011 }, /* 24.0dB */
 143         { 250,   925 }, /* 25.0dB */
 144         { 260,   853 }, /* 26.0dB */
 145         { 270,   789 }, /* 27.0dB */
 146         { 280,   734 }, /* 28.0dB */
 147         { 290,   690 }, /* 29.0dB */
 148         { 300,   650 }, /* 30.0dB */
 149         { 310,   619 }, /* 31.0dB */
 150         { 320,   593 }, /* 32.0dB */
 151         { 330,   571 }, /* 33.0dB */
 152         { 400,   498 }, /* 40.0dB */
 153         { 450,   484 }, /* 45.0dB */
 154         { 500,   481 }  /* 50.0dB */
 155 };
 156
 157 /* RF level C/N lookup table */
 158 static const struct stv090x_tab stv090x_rf_tab[] = {
 159         {  -5, 0xcaa1 }, /*  -5dBm */
 160         { -10, 0xc229 }, /* -10dBm */
 161         { -15, 0xbb08 }, /* -15dBm */
 162         { -20, 0xb4bc }, /* -20dBm */
 163         { -25, 0xad5a }, /* -25dBm */
 164         { -30, 0xa298 }, /* -30dBm */
 165         { -35, 0x98a8 }, /* -35dBm */
 166         { -40, 0x8389 }, /* -40dBm */
 167         { -45, 0x59be }, /* -45dBm */
 168         { -50, 0x3a14 }, /* -50dBm */
 169         { -55, 0x2d11 }, /* -55dBm */
 170         { -60, 0x210d }, /* -60dBm */
 171         { -65, 0xa14f }, /* -65dBm */
 172         { -70, 0x07aa }  /* -70dBm */
 173 };
 174
 175
 176 static struct stv090x_reg stv0900_initval[] = {
 177
 178         { STV090x_OUTCFG,               0x00 },
 179         { STV090x_AGCRF1CFG,            0x11 },
 180         { STV090x_AGCRF2CFG,            0x13 },
 181         { STV090x_TSTTNR2,              0x21 },
 182         { STV090x_TSTTNR4,              0x21 },
 183         { STV090x_P2_DISTXCTL,          0x22 },
 184         { STV090x_P2_F22TX,             0xc0 },
 185         { STV090x_P2_F22RX,             0xc0 },
 186         { STV090x_P2_DISRXCTL,          0x00 },
 187         { STV090x_P2_DMDCFGMD,          0xF9 },
 188         { STV090x_P2_DEMOD,             0x08 },
 189         { STV090x_P2_DMDCFG3,           0xc4 },
 190         { STV090x_P2_CARFREQ,           0xed },
 191         { STV090x_P2_LDT,               0xd0 },
 192         { STV090x_P2_LDT2,              0xb8 },
 193         { STV090x_P2_TMGCFG,            0xd2 },
 194         { STV090x_P2_TMGTHRISE,         0x20 },
 195         { STV090x_P1_TMGCFG,            0xd2 },
 196
 197         { STV090x_P2_TMGTHFALL,         0x00 },
 198         { STV090x_P2_FECSPY,            0x88 },
 199         { STV090x_P2_FSPYDATA,          0x3a },
 200         { STV090x_P2_FBERCPT4,          0x00 },
 201         { STV090x_P2_FSPYBER,           0x10 },
 202         { STV090x_P2_ERRCTRL1,          0x35 },
 203         { STV090x_P2_ERRCTRL2,          0xc1 },
 204         { STV090x_P2_CFRICFG,           0xf8 },
 205         { STV090x_P2_NOSCFG,            0x1c },
 206         { STV090x_P2_CORRELMANT,        0x70 },
 207         { STV090x_P2_CORRELABS,         0x88 },
 208         { STV090x_P2_AGC2REF,           0x38 },
 209         { STV090x_P2_CARCFG,            0xe4 },
 210         { STV090x_P2_ACLC,              0x1A },
 211         { STV090x_P2_BCLC,              0x09 },
 212         { STV090x_P2_CARHDR,            0x08 },
 213         { STV090x_P2_KREFTMG,           0xc1 },
 214         { STV090x_P2_SFRUPRATIO,        0xf0 },
 215         { STV090x_P2_SFRLOWRATIO,       0x70 },
 216         { STV090x_P2_SFRSTEP,           0x58 },
 217         { STV090x_P2_TMGCFG2,           0x01 },
 218         { STV090x_P2_CAR2CFG,           0x26 },
 219         { STV090x_P2_BCLC2S2Q,          0x86 },
 220         { STV090x_P2_BCLC2S28,          0x86 },
 221         { STV090x_P2_SMAPCOEF7,         0x77 },
 222         { STV090x_P2_SMAPCOEF6,         0x85 },
 223         { STV090x_P2_SMAPCOEF5,         0x77 },
 224         { STV090x_P2_TSCFGL,            0x20 },
 225         { STV090x_P2_DMDCFG2,           0x3b },
 226         { STV090x_P2_MODCODLST0,        0xff },
 227         { STV090x_P2_MODCODLST1,        0xff },
 228         { STV090x_P2_MODCODLST2,        0xff },
 229         { STV090x_P2_MODCODLST3,        0xff },
 230         { STV090x_P2_MODCODLST4,        0xff },
 231         { STV090x_P2_MODCODLST5,        0xff },
 232         { STV090x_P2_MODCODLST6,        0xff },
 233         { STV090x_P2_MODCODLST7,        0xcc },
 234         { STV090x_P2_MODCODLST8,        0xcc },
 235         { STV090x_P2_MODCODLST9,        0xcc },
 236         { STV090x_P2_MODCODLSTA,        0xcc },
 237         { STV090x_P2_MODCODLSTB,        0xcc },
 238         { STV090x_P2_MODCODLSTC,        0xcc },
 239         { STV090x_P2_MODCODLSTD,        0xcc },
 240         { STV090x_P2_MODCODLSTE,        0xcc },
 241         { STV090x_P2_MODCODLSTF,        0xcf },
 242         { STV090x_P1_DISTXCTL,          0x22 },
 243         { STV090x_P1_F22TX,             0xc0 },
 244         { STV090x_P1_F22RX,             0xc0 },
 245         { STV090x_P1_DISRXCTL,          0x00 },
 246         { STV090x_P1_DMDCFGMD,          0xf9 },
 247         { STV090x_P1_DEMOD,             0x08 },
 248         { STV090x_P1_DMDCFG3,           0xc4 },
 249         { STV090x_P1_CARFREQ,           0xed },
 250         { STV090x_P1_LDT,               0xd0 },
 251         { STV090x_P1_LDT2,              0xb8 },
 252         { STV090x_P1_TMGCFG,            0xd2 },
 253         { STV090x_P1_TMGTHRISE,         0x20 },
 254         { STV090x_P1_TMGTHFALL,         0x00 },
 255         { STV090x_P1_SFRUPRATIO,        0xf0 },
 256         { STV090x_P1_SFRLOWRATIO,       0x70 },
 257         { STV090x_P1_TSCFGL,            0x20 },
 258         { STV090x_P1_FECSPY,            0x88 },
 259         { STV090x_P1_FSPYDATA,          0x3a },
 260         { STV090x_P1_FBERCPT4,          0x00 },
 261         { STV090x_P1_FSPYBER,           0x10 },
 262         { STV090x_P1_ERRCTRL1,          0x35 },
 263         { STV090x_P1_ERRCTRL2,          0xc1 },
 264         { STV090x_P1_CFRICFG,           0xf8 },
 265         { STV090x_P1_NOSCFG,            0x1c },
 266         { STV090x_P1_CORRELMANT,        0x70 },
 267         { STV090x_P1_CORRELABS,         0x88 },
 268         { STV090x_P1_AGC2REF,           0x38 },
 269         { STV090x_P1_CARCFG,            0xe4 },
 270         { STV090x_P1_ACLC,              0x1A },
 271         { STV090x_P1_BCLC,              0x09 },
 272         { STV090x_P1_CARHDR,            0x08 },
 273         { STV090x_P1_KREFTMG,           0xc1 },
 274         { STV090x_P1_SFRSTEP,           0x58 },
 275         { STV090x_P1_TMGCFG2,           0x01 },
 276         { STV090x_P1_CAR2CFG,           0x26 },
 277         { STV090x_P1_BCLC2S2Q,          0x86 },
 278         { STV090x_P1_BCLC2S28,          0x86 },
 279         { STV090x_P1_SMAPCOEF7,         0x77 },
 280         { STV090x_P1_SMAPCOEF6,         0x85 },
 281         { STV090x_P1_SMAPCOEF5,         0x77 },
 282         { STV090x_P1_DMDCFG2,           0x3b },
 283         { STV090x_P1_MODCODLST0,        0xff },
 284         { STV090x_P1_MODCODLST1,        0xff },
 285         { STV090x_P1_MODCODLST2,        0xff },
 286         { STV090x_P1_MODCODLST3,        0xff },
 287         { STV090x_P1_MODCODLST4,        0xff },
 288         { STV090x_P1_MODCODLST5,        0xff },
 289         { STV090x_P1_MODCODLST6,        0xff },
 290         { STV090x_P1_MODCODLST7,        0xcc },
 291         { STV090x_P1_MODCODLST8,        0xcc },
 292         { STV090x_P1_MODCODLST9,        0xcc },
 293         { STV090x_P1_MODCODLSTA,        0xcc },
 294         { STV090x_P1_MODCODLSTB,        0xcc },
 295         { STV090x_P1_MODCODLSTC,        0xcc },
 296         { STV090x_P1_MODCODLSTD,        0xcc },
 297         { STV090x_P1_MODCODLSTE,        0xcc },
 298         { STV090x_P1_MODCODLSTF,        0xcf },
 299         { STV090x_GENCFG,               0x1d },
 300         { STV090x_NBITER_NF4,           0x37 },
 301         { STV090x_NBITER_NF5,           0x29 },
 302         { STV090x_NBITER_NF6,           0x37 },
 303         { STV090x_NBITER_NF7,           0x33 },
 304         { STV090x_NBITER_NF8,           0x31 },
 305         { STV090x_NBITER_NF9,           0x2f },
 306         { STV090x_NBITER_NF10,          0x39 },
 307         { STV090x_NBITER_NF11,          0x3a },
 308         { STV090x_NBITER_NF12,          0x29 },
 309         { STV090x_NBITER_NF13,          0x37 },
 310         { STV090x_NBITER_NF14,          0x33 },
 311         { STV090x_NBITER_NF15,          0x2f },
 312         { STV090x_NBITER_NF16,          0x39 },
 313         { STV090x_NBITER_NF17,          0x3a },
 314         { STV090x_NBITERNOERR,          0x04 },
 315         { STV090x_GAINLLR_NF4,          0x0C },
 316         { STV090x_GAINLLR_NF5,          0x0F },
 317         { STV090x_GAINLLR_NF6,          0x11 },
 318         { STV090x_GAINLLR_NF7,          0x14 },
 319         { STV090x_GAINLLR_NF8,          0x17 },
 320         { STV090x_GAINLLR_NF9,          0x19 },
 321         { STV090x_GAINLLR_NF10,         0x20 },
 322         { STV090x_GAINLLR_NF11,         0x21 },
 323         { STV090x_GAINLLR_NF12,         0x0D },
 324         { STV090x_GAINLLR_NF13,         0x0F },
 325         { STV090x_GAINLLR_NF14,         0x13 },
 326         { STV090x_GAINLLR_NF15,         0x1A },
 327         { STV090x_GAINLLR_NF16,         0x1F },
 328         { STV090x_GAINLLR_NF17,         0x21 },
 329         { STV090x_P1_FECM,              0x01 }, /* disable DSS modes */
 330         { STV090x_P2_FECM,              0x01 }, /* disable DSS modes */
 331         { STV090x_P1_PRVIT,             0x2F }, /* disable PR 6/7 */
 332         { STV090x_P2_PRVIT,             0x2F }, /* disable PR 6/7 */
 333 };
 334
 335 static struct stv090x_reg stv0903_initval[] = {
 336         { STV090x_OUTCFG,               0x00 },
 337         { STV090x_AGCRF1CFG,            0x11 },
 338         { STV090x_STOPCLK1,             0x48 },
 339         { STV090x_STOPCLK2,             0x14 },
 340         { STV090x_TSTTNR1,              0x27 },
 341         { STV090x_TSTTNR2,              0x21 },
 342         { STV090x_P1_DISTXCTL,          0x22 },
 343         { STV090x_P1_F22TX,             0xc0 },
 344         { STV090x_P1_F22RX,             0xc0 },
 345         { STV090x_P1_DISRXCTL,          0x00 },
 346         { STV090x_P1_DMDCFGMD,          0xF9 },
 347         { STV090x_P1_DEMOD,             0x08 },
 348         { STV090x_P1_DMDCFG3,           0xc4 },
 349         { STV090x_P1_CARFREQ,           0xed },
 350         { STV090x_P1_TNRCFG2,           0x82 },
 351         { STV090x_P1_LDT,               0xd0 },
 352         { STV090x_P1_LDT2,              0xb8 },
 353         { STV090x_P1_TMGCFG,            0xd2 },
 354         { STV090x_P1_TMGTHRISE,         0x20 },
 355         { STV090x_P1_TMGTHFALL,         0x00 },
 356         { STV090x_P1_SFRUPRATIO,        0xf0 },
 357         { STV090x_P1_SFRLOWRATIO,       0x70 },
 358         { STV090x_P1_TSCFGL,            0x20 },
 359         { STV090x_P1_FECSPY,            0x88 },
 360         { STV090x_P1_FSPYDATA,          0x3a },
 361         { STV090x_P1_FBERCPT4,          0x00 },
 362         { STV090x_P1_FSPYBER,           0x10 },
 363         { STV090x_P1_ERRCTRL1,          0x35 },
 364         { STV090x_P1_ERRCTRL2,          0xc1 },
 365         { STV090x_P1_CFRICFG,           0xf8 },
 366         { STV090x_P1_NOSCFG,            0x1c },
 367         { STV090x_P1_CORRELMANT,        0x70 },
 368         { STV090x_P1_CORRELABS,         0x88 },
 369         { STV090x_P1_AGC2REF,           0x38 } ,
 370         { STV090x_P1_CARCFG,            0xe4 },
 371         { STV090x_P1_ACLC,              0x1A },
 372         { STV090x_P1_BCLC,              0x09 } ,
 373         { STV090x_P1_CARHDR,            0x08 },
 374         { STV090x_P1_KREFTMG,           0xc1 },
 375         { STV090x_P1_SFRSTEP,           0x58 },
 376         { STV090x_P1_TMGCFG2,           0x01 },
 377         { STV090x_P1_CAR2CFG,           0x26 },
 378         { STV090x_P1_BCLC2S2Q,          0x86 },
 379         { STV090x_P1_BCLC2S28,          0x86 },
 380         { STV090x_P1_SMAPCOEF7,         0x77 },
 381         { STV090x_P1_SMAPCOEF6,         0x85 },
 382         { STV090x_P1_SMAPCOEF5,         0x77 },
 383         { STV090x_P1_DMDCFG2,           0x3b },
 384         { STV090x_P1_MODCODLST0,        0xff },
 385         { STV090x_P1_MODCODLST1,        0xff },
 386         { STV090x_P1_MODCODLST2,        0xff },
 387         { STV090x_P1_MODCODLST3,        0xff },
 388         { STV090x_P1_MODCODLST4,        0xff },
 389         { STV090x_P1_MODCODLST5,        0xff },
 390         { STV090x_P1_MODCODLST6,        0xff },
 391         { STV090x_P1_MODCODLST7,        0xcc },
 392         { STV090x_P1_MODCODLST8,        0xcc },
 393         { STV090x_P1_MODCODLST9,        0xcc },
 394         { STV090x_P1_MODCODLSTA,        0xcc },
 395         { STV090x_P1_MODCODLSTB,        0xcc },
 396         { STV090x_P1_MODCODLSTC,        0xcc },
 397         { STV090x_P1_MODCODLSTD,        0xcc },
 398         { STV090x_P1_MODCODLSTE,        0xcc },
 399         { STV090x_P1_MODCODLSTF,        0xcf },
 400         { STV090x_GENCFG,               0x1c },
 401         { STV090x_NBITER_NF4,           0x37 },
 402         { STV090x_NBITER_NF5,           0x29 },
 403         { STV090x_NBITER_NF6,           0x37 },
 404         { STV090x_NBITER_NF7,           0x33 },
 405         { STV090x_NBITER_NF8,           0x31 },
 406         { STV090x_NBITER_NF9,           0x2f },
 407         { STV090x_NBITER_NF10,          0x39 },
 408         { STV090x_NBITER_NF11,          0x3a },
 409         { STV090x_NBITER_NF12,          0x29 },
 410         { STV090x_NBITER_NF13,          0x37 },
 411         { STV090x_NBITER_NF14,          0x33 },
 412         { STV090x_NBITER_NF15,          0x2f },
 413         { STV090x_NBITER_NF16,          0x39 },
 414         { STV090x_NBITER_NF17,          0x3a },
 415         { STV090x_NBITERNOERR,          0x04 },
 416         { STV090x_GAINLLR_NF4,          0x0C },
 417         { STV090x_GAINLLR_NF5,          0x0F },
 418         { STV090x_GAINLLR_NF6,          0x11 },
 419         { STV090x_GAINLLR_NF7,          0x14 },
 420         { STV090x_GAINLLR_NF8,          0x17 },
 421         { STV090x_GAINLLR_NF9,          0x19 },
 422         { STV090x_GAINLLR_NF10,         0x20 },
 423         { STV090x_GAINLLR_NF11,         0x21 },
 424         { STV090x_GAINLLR_NF12,         0x0D },
 425         { STV090x_GAINLLR_NF13,         0x0F },
 426         { STV090x_GAINLLR_NF14,         0x13 },
 427         { STV090x_GAINLLR_NF15,         0x1A },
 428         { STV090x_GAINLLR_NF16,         0x1F },
 429         { STV090x_GAINLLR_NF17,         0x21 },
 430         { STV090x_P1_FECM,              0x01 }, /*disable the DSS mode */
 431         { STV090x_P1_PRVIT,             0x2f }  /*disable puncture rate 6/7*/
 432 };
 433
 434 static struct stv090x_reg stv0900_cut20_val[] = {
 435
 436         { STV090x_P2_DMDCFG3,           0xe8 },
 437         { STV090x_P2_CARFREQ,           0x38 },
 438         { STV090x_P2_CARHDR,            0x20 },
 439         { STV090x_P2_KREFTMG,           0x5a },
 440         { STV090x_P2_SMAPCOEF7,         0x06 },
 441         { STV090x_P2_SMAPCOEF6,         0x00 },
 442         { STV090x_P2_SMAPCOEF5,         0x04 },
 443         { STV090x_P2_NOSCFG,            0x0c },
 444         { STV090x_P1_DMDCFG3,           0xe8 },
 445         { STV090x_P1_CARFREQ,           0x38 },
 446         { STV090x_P1_CARHDR,            0x20 },
 447         { STV090x_P1_KREFTMG,           0x5a },
 448         { STV090x_P1_SMAPCOEF7,         0x06 },
 449         { STV090x_P1_SMAPCOEF6,         0x00 },
 450         { STV090x_P1_SMAPCOEF5,         0x04 },
 451         { STV090x_P1_NOSCFG,            0x0c },
 452         { STV090x_GAINLLR_NF4,          0x21 },
 453         { STV090x_GAINLLR_NF5,          0x21 },
 454         { STV090x_GAINLLR_NF6,          0x20 },
 455         { STV090x_GAINLLR_NF7,          0x1F },
 456         { STV090x_GAINLLR_NF8,          0x1E },
 457         { STV090x_GAINLLR_NF9,          0x1E },
 458         { STV090x_GAINLLR_NF10,         0x1D },
 459         { STV090x_GAINLLR_NF11,         0x1B },
 460         { STV090x_GAINLLR_NF12,         0x20 },
 461         { STV090x_GAINLLR_NF13,         0x20 },
 462         { STV090x_GAINLLR_NF14,         0x20 },
 463         { STV090x_GAINLLR_NF15,         0x20 },
 464         { STV090x_GAINLLR_NF16,         0x20 },
 465         { STV090x_GAINLLR_NF17,         0x21 },
 466 };
 467
 468 static struct stv090x_reg stv0903_cut20_val[] = {
 469         { STV090x_P1_DMDCFG3,           0xe8 },
 470         { STV090x_P1_CARFREQ,           0x38 },
 471         { STV090x_P1_CARHDR,            0x20 },
 472         { STV090x_P1_KREFTMG,           0x5a },
 473         { STV090x_P1_SMAPCOEF7,         0x06 },
 474         { STV090x_P1_SMAPCOEF6,         0x00 },
 475         { STV090x_P1_SMAPCOEF5,         0x04 },
 476         { STV090x_P1_NOSCFG,            0x0c },
 477         { STV090x_GAINLLR_NF4,          0x21 },
 478         { STV090x_GAINLLR_NF5,          0x21 },
 479         { STV090x_GAINLLR_NF6,          0x20 },
 480         { STV090x_GAINLLR_NF7,          0x1F },
 481         { STV090x_GAINLLR_NF8,          0x1E },
 482         { STV090x_GAINLLR_NF9,          0x1E },
 483         { STV090x_GAINLLR_NF10,         0x1D },
 484         { STV090x_GAINLLR_NF11,         0x1B },
 485         { STV090x_GAINLLR_NF12,         0x20 },
 486         { STV090x_GAINLLR_NF13,         0x20 },
 487         { STV090x_GAINLLR_NF14,         0x20 },
 488         { STV090x_GAINLLR_NF15,         0x20 },
 489         { STV090x_GAINLLR_NF16,         0x20 },
 490         { STV090x_GAINLLR_NF17,         0x21 }
 491 };
 492
 493 /* Cut 1.x Long Frame Tracking CR loop */
 494 static struct stv090x_long_frame_crloop stv090x_s2_crl[] = {
 495         /* MODCOD     2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 496         { STV090x_QPSK_12,  0x1c, 0x0d, 0x1b, 0x2c, 0x3a, 0x1c, 0x2a, 0x3b, 0x2a, 0x1b },
 497         { STV090x_QPSK_35,  0x2c, 0x0d, 0x2b, 0x2c, 0x3a, 0x0c, 0x3a, 0x2b, 0x2a, 0x0b },
 498         { STV090x_QPSK_23,  0x2c, 0x0d, 0x2b, 0x2c, 0x0b, 0x0c, 0x3a, 0x1b, 0x2a, 0x3a },
 499         { STV090x_QPSK_34,  0x3c, 0x0d, 0x3b, 0x1c, 0x0b, 0x3b, 0x3a, 0x0b, 0x2a, 0x3a },
 500         { STV090x_QPSK_45,  0x3c, 0x0d, 0x3b, 0x1c, 0x0b, 0x3b, 0x3a, 0x0b, 0x2a, 0x3a },
 501         { STV090x_QPSK_56,  0x0d, 0x0d, 0x3b, 0x1c, 0x0b, 0x3b, 0x3a, 0x0b, 0x2a, 0x3a },
 502         { STV090x_QPSK_89,  0x0d, 0x0d, 0x3b, 0x1c, 0x1b, 0x3b, 0x3a, 0x0b, 0x2a, 0x3a },
 503         { STV090x_QPSK_910, 0x1d, 0x0d, 0x3b, 0x1c, 0x1b, 0x3b, 0x3a, 0x0b, 0x2a, 0x3a },
 504         { STV090x_8PSK_35,  0x29, 0x3b, 0x09, 0x2b, 0x38, 0x0b, 0x18, 0x1a, 0x08, 0x0a },
 505         { STV090x_8PSK_23,  0x0a, 0x3b, 0x29, 0x2b, 0x19, 0x0b, 0x38, 0x1a, 0x18, 0x0a },
 506         { STV090x_8PSK_34,  0x3a, 0x3b, 0x2a, 0x2b, 0x39, 0x0b, 0x19, 0x1a, 0x38, 0x0a },
 507         { STV090x_8PSK_56,  0x1b, 0x3b, 0x0b, 0x2b, 0x1a, 0x0b, 0x39, 0x1a, 0x19, 0x0a },
 508         { STV090x_8PSK_89,  0x3b, 0x3b, 0x0b, 0x2b, 0x2a, 0x0b, 0x39, 0x1a, 0x29, 0x39 },
 509         { STV090x_8PSK_910, 0x3b, 0x3b, 0x0b, 0x2b, 0x2a, 0x0b, 0x39, 0x1a, 0x29, 0x39 }
 510 };
 511
 512 /* Cut 2.0 Long Frame Tracking CR loop */
 513 static struct stv090x_long_frame_crloop stv090x_s2_crl_cut20[] = {
 514         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 515         { STV090x_QPSK_12,  0x1f, 0x3f, 0x1e, 0x3f, 0x3d, 0x1f, 0x3d, 0x3e, 0x3d, 0x1e },
 516         { STV090x_QPSK_35,  0x2f, 0x3f, 0x2e, 0x2f, 0x3d, 0x0f, 0x0e, 0x2e, 0x3d, 0x0e },
 517         { STV090x_QPSK_23,  0x2f, 0x3f, 0x2e, 0x2f, 0x0e, 0x0f, 0x0e, 0x1e, 0x3d, 0x3d },
 518         { STV090x_QPSK_34,  0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 519         { STV090x_QPSK_45,  0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 520         { STV090x_QPSK_56,  0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 521         { STV090x_QPSK_89,  0x3f, 0x3f, 0x3e, 0x1f, 0x1e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 522         { STV090x_QPSK_910, 0x3f, 0x3f, 0x3e, 0x1f, 0x1e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 523         { STV090x_8PSK_35,  0x3c, 0x3e, 0x1c, 0x2e, 0x0c, 0x1e, 0x2b, 0x2d, 0x1b, 0x1d },
 524         { STV090x_8PSK_23,  0x1d, 0x3e, 0x3c, 0x2e, 0x2c, 0x1e, 0x0c, 0x2d, 0x2b, 0x1d },
 525         { STV090x_8PSK_34,  0x0e, 0x3e, 0x3d, 0x2e, 0x0d, 0x1e, 0x2c, 0x2d, 0x0c, 0x1d },
 526         { STV090x_8PSK_56,  0x2e, 0x3e, 0x1e, 0x2e, 0x2d, 0x1e, 0x3c, 0x2d, 0x2c, 0x1d },
 527         { STV090x_8PSK_89,  0x3e, 0x3e, 0x1e, 0x2e, 0x3d, 0x1e, 0x0d, 0x2d, 0x3c, 0x1d },
 528         { STV090x_8PSK_910, 0x3e, 0x3e, 0x1e, 0x2e, 0x3d, 0x1e, 0x1d, 0x2d, 0x0d, 0x1d }
 529 };
 530
 531
 532 /* Cut 2.0 Long Frame Tracking CR Loop */
 533 static struct stv090x_long_frame_crloop stv090x_s2_apsk_crl_cut20[] = {
 534         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 535         { STV090x_16APSK_23,  0x0c, 0x0c, 0x0c, 0x0c, 0x1d, 0x0c, 0x3c, 0x0c, 0x2c, 0x0c },
 536         { STV090x_16APSK_34,  0x0c, 0x0c, 0x0c, 0x0c, 0x0e, 0x0c, 0x2d, 0x0c, 0x1d, 0x0c },
 537         { STV090x_16APSK_45,  0x0c, 0x0c, 0x0c, 0x0c, 0x1e, 0x0c, 0x3d, 0x0c, 0x2d, 0x0c },
 538         { STV090x_16APSK_56,  0x0c, 0x0c, 0x0c, 0x0c, 0x1e, 0x0c, 0x3d, 0x0c, 0x2d, 0x0c },
 539         { STV090x_16APSK_89,  0x0c, 0x0c, 0x0c, 0x0c, 0x2e, 0x0c, 0x0e, 0x0c, 0x3d, 0x0c },
 540         { STV090x_16APSK_910, 0x0c, 0x0c, 0x0c, 0x0c, 0x2e, 0x0c, 0x0e, 0x0c, 0x3d, 0x0c },
 541         { STV090x_32APSK_34,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 542         { STV090x_32APSK_45,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 543         { STV090x_32APSK_56,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 544         { STV090x_32APSK_89,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 545         { STV090x_32APSK_910, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c }
 546 };
 547
 548
 549 static struct stv090x_long_frame_crloop stv090x_s2_lowqpsk_crl_cut20[] = {
 550         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 551         { STV090x_QPSK_14,  0x0f, 0x3f, 0x0e, 0x3f, 0x2d, 0x2f, 0x2d, 0x1f, 0x3d, 0x3e },
 552         { STV090x_QPSK_13,  0x0f, 0x3f, 0x0e, 0x3f, 0x2d, 0x2f, 0x3d, 0x0f, 0x3d, 0x2e },
 553         { STV090x_QPSK_25,  0x1f, 0x3f, 0x1e, 0x3f, 0x3d, 0x1f, 0x3d, 0x3e, 0x3d, 0x2e }
 554 };
 555
 556
 557 /* Cut 1.2 & 2.0 Short Frame Tracking CR Loop */
 558 static struct stv090x_short_frame_crloop stv090x_s2_short_crl[] = {
 559         /* MODCOD  2M_cut1.2 2M_cut2.0 5M_cut1.2 5M_cut2.0 10M_cut1.2 10M_cut2.0 20M_cut1.2 20M_cut2.0 30M_cut1.2 30M_cut2.0 */
 560         { STV090x_QPSK,   0x3c, 0x2f, 0x2b, 0x2e, 0x0b, 0x0e, 0x3a, 0x0e, 0x2a, 0x3d },
 561         { STV090x_8PSK,   0x0b, 0x3e, 0x2a, 0x0e, 0x0a, 0x2d, 0x19, 0x0d, 0x09, 0x3c },
 562         { STV090x_16APSK, 0x1b, 0x1e, 0x1b, 0x1e, 0x1b, 0x1e, 0x3a, 0x3d, 0x2a, 0x2d },
 563         { STV090x_32APSK, 0x1b, 0x1e, 0x1b, 0x1e, 0x1b, 0x1e, 0x3a, 0x3d, 0x2a, 0x2d }
 564 };
 565
 566
 567 static inline s32 comp2(s32 __x, s32 __width)
 568 {
 569         if (__width == 32)
 570                 return __x;
 571         else
 572                 return (__x >= (1 << (__width - 1))) ? (__x - (1 << __width)) : __x;
 573 }
 574
 575 static int stv090x_read_reg(struct stv090x_state *state, unsigned int reg)
 576 {
 577         const struct stv090x_config *config = state->config;
 578         int ret;
 579
 580         u8 b0[] = { reg >> 8, reg & 0xff };
 581         u8 buf;
 582
 583         struct i2c_msg msg[] = {
 584                 { .addr = config->address, .flags       = 0,            .buf = b0,   .len = 2 },
 585                 { .addr = config->address, .flags       = I2C_M_RD,     .buf = &buf, .len = 1 }
 586         };
 587
 588         ret = i2c_transfer(state->i2c, msg, 2);
 589         if (ret != 2) {
 590                 if (ret != -ERESTARTSYS)
 591                         dprintk(FE_ERROR, 1,
 592                                 "Read error, Reg=[0x%02x], Status=%d",
 593                                 reg, ret);
 594
 595                 return ret < 0 ? ret : -EREMOTEIO;
 596         }
 597         if (unlikely(*state->verbose >= FE_DEBUGREG))
 598                 dprintk(FE_ERROR, 1, "Reg=[0x%02x], data=%02x",
 599                         reg, buf);
 600
 601         return (unsigned int) buf;
 602 }
 603
 604 static int stv090x_write_regs(struct stv090x_state *state, unsigned int reg, u8 *data, u32 count)
 605 {
 606         const struct stv090x_config *config = state->config;
 607         int ret;
 608         u8 buf[2 + count];
 609         struct i2c_msg i2c_msg = { .addr = config->address, .flags = 0, .buf = buf, .len = 2 + count };
 610
 611         buf[0] = reg >> 8;
 612         buf[1] = reg & 0xff;
 613         memcpy(&buf[2], data, count);
 614
 615         if (unlikely(*state->verbose >= FE_DEBUGREG)) {
 616                 int i;
 617
 618                 printk(KERN_DEBUG "%s [0x%04x]:", __func__, reg);
 619                 for (i = 0; i < count; i++)
 620                         printk(" %02x", data[i]);
 621                 printk("\n");
 622         }
 623
 624         ret = i2c_transfer(state->i2c, &i2c_msg, 1);
 625         if (ret != 1) {
 626                 if (ret != -ERESTARTSYS)
 627                         dprintk(FE_ERROR, 1, "Reg=[0x%04x], Data=[0x%02x ...], Count=%u, Status=%d",
 628                                 reg, data[0], count, ret);
 629                 return ret < 0 ? ret : -EREMOTEIO;
 630         }
 631
 632         return 0;
 633 }
 634
 635 static int stv090x_write_reg(struct stv090x_state *state, unsigned int reg, u8 data)
 636 {
 637         return stv090x_write_regs(state, reg, &data, 1);
 638 }
 639
 640 static int stv090x_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
 641 {
 642         struct stv090x_state *state = fe->demodulator_priv;
 643         u32 reg;
 644
 645         reg = STV090x_READ_DEMOD(state, I2CRPT);
 646
 647         if (enable) {
 648                 STV090x_SETFIELD_Px(reg, I2CT_ON_FIELD, 1);
 649                 if (STV090x_WRITE_DEMOD(state, I2CRPT, reg) < 0)
 650                         goto err;
 651
 652         } else {
 653                 STV090x_SETFIELD_Px(reg, I2CT_ON_FIELD, 0);
 654                 if ((STV090x_WRITE_DEMOD(state, I2CRPT, reg)) < 0)
 655                         goto err;
 656         }
 657         return 0;
 658 err:
 659         dprintk(FE_ERROR, 1, "I/O error");
 660         return -1;
 661 }
 662
 663 static void stv090x_get_lock_tmg(struct stv090x_state *state)
 664 {
 665         switch (state->algo) {
 666         case STV090x_BLIND_SEARCH:
 667                 dprintk(FE_DEBUG, 1, "Blind Search");
 668                 if (state->srate <= 1500000) {  /*10Msps< SR <=15Msps*/
 669                         state->DemodTimeout = 1500;
 670                         state->FecTimeout = 400;
 671                 } else if (state->srate <= 5000000) {  /*10Msps< SR <=15Msps*/
 672                         state->DemodTimeout = 1000;
 673                         state->FecTimeout = 300;
 674                 } else {  /*SR >20Msps*/
 675                         state->DemodTimeout = 700;
 676                         state->FecTimeout = 100;
 677                 }
 678                 break;
 679
 680         case STV090x_COLD_SEARCH:
 681         case STV090x_WARM_SEARCH:
 682         default:
 683                 dprintk(FE_DEBUG, 1, "Normal Search");
 684                 if (state->srate <= 1000000) {  /*SR <=1Msps*/
 685                         state->DemodTimeout = 4500;
 686                         state->FecTimeout = 1700;
 687                 } else if (state->srate <= 2000000) { /*1Msps < SR <= 2Msps */
 688                         state->DemodTimeout = 2500;
 689                         state->FecTimeout = 1100;
 690                 } else if (state->srate <= 5000000) { /*2Msps < SR <= 5Msps */
 691                         state->DemodTimeout = 1000;
 692                         state->FecTimeout = 550;
 693                 } else if (state->srate <= 10000000) { /*5Msps < SR <= 10Msps */
 694                         state->DemodTimeout = 700;
 695                         state->FecTimeout = 250;
 696                 } else if (state->srate <= 20000000) { /*10Msps < SR <= 20Msps */
 697                         state->DemodTimeout = 400;
 698                         state->FecTimeout = 130;
 699                 } else {   /*SR >20Msps*/
 700                         state->DemodTimeout = 300;
 701                         state->FecTimeout = 100;
 702                 }
 703                 break;
 704         }
 705
 706         if (state->algo == STV090x_WARM_SEARCH)
 707                 state->DemodTimeout /= 2;
 708 }
 709
 710 static int stv090x_set_srate(struct stv090x_state *state, u32 srate)
 711 {
 712         u32 sym;
 713
 714         if (srate > 6000000) {
 715                 sym  = (srate / 1000) * 65536;
 716                 sym /= (state->mclk / 1000);
 717         } else {
 718                 sym  = (srate / 100) * 65536;
 719                 sym /= (state->mclk / 100);
 720         }
 721
 722         if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0xff) < 0) /* MSB */
 723                 goto err;
 724         if (STV090x_WRITE_DEMOD(state, SFRINIT0, (sym & 0xff)) < 0) /* LSB */
 725                 goto err;
 726         return 0;
 727 err:
 728         dprintk(FE_ERROR, 1, "I/O error");
 729         return -1;
 730 }
 731
 732 static int stv090x_set_max_srate(struct stv090x_state *state, u32 clk, u32 srate)
 733 {
 734         u32 sym;
 735
 736         srate = 105 * (srate / 100);
 737         if (srate > 6000000) {
 738                 sym  = (srate / 1000) * 65536;
 739                 sym /= (clk / 1000);
 740         } else {
 741                 sym  = (srate / 100) * 65536;
 742                 sym /= (clk / 100);
 743         }
 744         if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0) /* MSB */
 745                 goto err;
 746         if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0) /* LSB */
 747                 goto err;
 748         return 0;
 749 err:
 750         dprintk(FE_ERROR, 1, "I/O error");
 751         return -1;
 752 }
 753
 754 static int stv090x_set_min_srate(struct stv090x_state *state, u32 clk, u32 srate)
 755 {
 756         u32 sym;
 757
 758         srate = 95 * (srate / 100);
 759         if (srate > 6000000) {
 760                 sym  = (srate / 1000) * 65536;
 761                 sym /= (clk / 1000);
 762         } else {
 763                 sym  = (srate / 100) * 65536;
 764                 sym /= (clk / 100);
 765         }
 766         if (STV090x_WRITE_DEMOD(state, SFRLOW1, ((sym >> 8) & 0xff)) < 0) /* MSB */
 767                 goto err;
 768         if (STV090x_WRITE_DEMOD(state, SFRLOW0, (sym & 0xff)) < 0) /* LSB */
 769                 goto err;
 770         return 0;
 771 err:
 772         dprintk(FE_ERROR, 1, "I/O error");
 773         return -1;
 774 }
 775
 776 static u32 stv090x_car_width(u32 srate, u32 rolloff)
 777 {
 778         return srate + (srate * rolloff) / 100;
 779 }
 780
 781 static int stv090x_set_vit_thacq(struct stv090x_state *state)
 782 {
 783         if (STV090x_WRITE_DEMOD(state, VTH12, 0x96) < 0)
 784                 goto err;
 785         if (STV090x_WRITE_DEMOD(state, VTH23, 0x64) < 0)
 786                 goto err;
 787         if (STV090x_WRITE_DEMOD(state, VTH34, 0x36) < 0)
 788                 goto err;
 789         if (STV090x_WRITE_DEMOD(state, VTH56, 0x23) < 0)
 790                 goto err;
 791         if (STV090x_WRITE_DEMOD(state, VTH67, 0x1e) < 0)
 792                 goto err;
 793         if (STV090x_WRITE_DEMOD(state, VTH78, 0x19) < 0)
 794                 goto err;
 795         return 0;
 796 err:
 797         dprintk(FE_ERROR, 1, "I/O error");
 798         return -1;
 799 }
 800
 801 static int stv090x_set_vit_thtracq(struct stv090x_state *state)
 802 {
 803         if (STV090x_WRITE_DEMOD(state, VTH12, 0xd0) < 0)
 804                 goto err;
 805         if (STV090x_WRITE_DEMOD(state, VTH23, 0x7d) < 0)
 806                 goto err;
 807         if (STV090x_WRITE_DEMOD(state, VTH34, 0x53) < 0)
 808                 goto err;
 809         if (STV090x_WRITE_DEMOD(state, VTH56, 0x2f) < 0)
 810                 goto err;
 811         if (STV090x_WRITE_DEMOD(state, VTH67, 0x24) < 0)
 812                 goto err;
 813         if (STV090x_WRITE_DEMOD(state, VTH78, 0x1f) < 0)
 814                 goto err;
 815         return 0;
 816 err:
 817         dprintk(FE_ERROR, 1, "I/O error");
 818         return -1;
 819 }
 820
 821 static int stv090x_set_viterbi(struct stv090x_state *state)
 822 {
 823         switch (state->search_mode) {
 824         case STV090x_SEARCH_AUTO:
 825                 if (STV090x_WRITE_DEMOD(state, FECM, 0x10) < 0) /* DVB-S and DVB-S2 */
 826                         goto err;
 827                 if (STV090x_WRITE_DEMOD(state, PRVIT, 0x3f) < 0) /* all puncture rate */
 828                         goto err;
 829                 break;
 830         case STV090x_SEARCH_DVBS1:
 831                 if (STV090x_WRITE_DEMOD(state, FECM, 0x00) < 0) /* disable DSS */
 832                         goto err;
 833                 switch (state->fec) {
 834                 case STV090x_PR12:
 835                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x01) < 0)
 836                                 goto err;
 837                         break;
 838
 839                 case STV090x_PR23:
 840                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x02) < 0)
 841                                 goto err;
 842                         break;
 843
 844                 case STV090x_PR34:
 845                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x04) < 0)
 846                                 goto err;
 847                         break;
 848
 849                 case STV090x_PR56:
 850                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x08) < 0)
 851                                 goto err;
 852                         break;
 853
 854                 case STV090x_PR78:
 855                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x20) < 0)
 856                                 goto err;
 857                         break;
 858
 859                 default:
 860                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x2f) < 0) /* all */
 861                                 goto err;
 862                         break;
 863                 }
 864                 break;
 865         case STV090x_SEARCH_DSS:
 866                 if (STV090x_WRITE_DEMOD(state, FECM, 0x80) < 0)
 867                         goto err;
 868                 switch (state->fec) {
 869                 case STV090x_PR12:
 870                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x01) < 0)
 871                                 goto err;
 872                         break;
 873
 874                 case STV090x_PR23:
 875                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x02) < 0)
 876                                 goto err;
 877                         break;
 878
 879                 case STV090x_PR67:
 880                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x10) < 0)
 881                                 goto err;
 882                         break;
 883
 884                 default:
 885                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x13) < 0) /* 1/2, 2/3, 6/7 */
 886                                 goto err;
 887                         break;
 888                 }
 889                 break;
 890         default:
 891                 break;
 892         }
 893         return 0;
 894 err:
 895         dprintk(FE_ERROR, 1, "I/O error");
 896         return -1;
 897 }
 898
 899 static int stv090x_stop_modcod(struct stv090x_state *state)
 900 {
 901         if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
 902                 goto err;
 903         if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xff) < 0)
 904                 goto err;
 905         if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xff) < 0)
 906                 goto err;
 907         if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xff) < 0)
 908                 goto err;
 909         if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xff) < 0)
 910                 goto err;
 911         if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xff) < 0)
 912                 goto err;
 913         if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xff) < 0)
 914                 goto err;
 915         if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xff) < 0)
 916                 goto err;
 917         if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xff) < 0)
 918                 goto err;
 919         if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xff) < 0)
 920                 goto err;
 921         if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xff) < 0)
 922                 goto err;
 923         if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xff) < 0)
 924                 goto err;
 925         if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xff) < 0)
 926                 goto err;
 927         if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xff) < 0)
 928                 goto err;
 929         if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xff) < 0)
 930                 goto err;
 931         if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xff) < 0)
 932                 goto err;
 933         return 0;
 934 err:
 935         dprintk(FE_ERROR, 1, "I/O error");
 936         return -1;
 937 }
 938
 939 static int stv090x_activate_modcod(struct stv090x_state *state)
 940 {
 941         u32 matype, modcod, f_mod, index;
 942
 943         if (state->dev_ver <= 0x11) {
 944                 msleep(5);
 945                 modcod = STV090x_READ_DEMOD(state, PLHMODCOD);
 946                 matype = modcod & 0x03;
 947                 modcod = (modcod & 0x7f) >> 2;
 948                 index = STV090x_ADDR_OFFST(state, MODCODLSTF) - (modcod / 2);
 949
 950                 switch (matype) {
 951                 default:
 952                 case 0:
 953                         f_mod = 14;
 954                         break;
 955                 case 1:
 956                         f_mod = 13;
 957                         break;
 958                 case 2:
 959                         f_mod = 11;
 960                         break;
 961                 case 3:
 962                         f_mod = 7;
 963                         break;
 964                 }
 965                 if (matype <= 1) {
 966                         if (modcod % 2) {
 967                                 if (stv090x_write_reg(state, index, 0xf0 | f_mod) < 0)
 968                                         goto err;
 969                         } else {
 970                                 if (stv090x_write_reg(state, index, (f_mod << 4) | 0x0f) < 0)
 971                                         goto err;
 972                         }
 973                 }
 974         } else if (state->dev_ver >= 0x12) {
 975                         if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
 976                                 goto err;
 977                         if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xfc) < 0)
 978                                 goto err;
 979                         if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xcc) < 0)
 980                                 goto err;
 981                         if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xcc) < 0)
 982                                 goto err;
 983                         if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xcc) < 0)
 984                                 goto err;
 985                         if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xcc) < 0)
 986                                 goto err;
 987                         if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xcc) < 0)
 988                                 goto err;
 989                         if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xcc) < 0)
 990                                 goto err;
 991                         if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xcc) < 0)
 992                                 goto err;
 993                         if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xcc) < 0)
 994                                 goto err;
 995                         if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xcc) < 0)
 996                                 goto err;
 997                         if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xcc) < 0)
 998                                 goto err;
 999                         if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xcc) < 0)
1000                                 goto err;
1001                         if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xcc) < 0)
1002                                 goto err;
1003                         if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xcc) < 0)
1004                                 goto err;
1005                         if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xcf) < 0)
1006                                 goto err;
1007         }
1008         return 0;
1009 err:
1010         dprintk(FE_ERROR, 1, "I/O error");
1011         return -1;
1012 }
1013
1014 static int stv090x_vitclk_ctl(struct stv090x_state *state, int enable)
1015 {
1016         u32 reg;
1017
1018         switch (state->demod) {
1019         case STV090x_DEMODULATOR_0:
1020                 mutex_lock(&demod_lock);
1021                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
1022                 STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, enable);
1023                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
1024                         goto err;
1025                 mutex_unlock(&demod_lock);
1026                 break;
1027
1028         case STV090x_DEMODULATOR_1:
1029                 mutex_lock(&demod_lock);
1030                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
1031                 STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, enable);
1032                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
1033                         goto err;
1034                 mutex_unlock(&demod_lock);
1035                 break;
1036
1037         default:
1038                 dprintk(FE_ERROR, 1, "Wrong demodulator!");
1039                 break;
1040         }
1041         return 0;
1042 err:
1043         mutex_unlock(&demod_lock);
1044         dprintk(FE_ERROR, 1, "I/O error");
1045         return -1;
1046 }
1047
1048 static int stv090x_delivery_search(struct stv090x_state *state)
1049 {
1050         u32 reg;
1051
1052         switch (state->search_mode) {
1053         case STV090x_SEARCH_DVBS1:
1054         case STV090x_SEARCH_DSS:
1055                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1056                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1057                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1058                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1059                         goto err;
1060
1061                 /* Activate Viterbi decoder in legacy search, do not use FRESVIT1, might impact VITERBI2 */
1062                 if (stv090x_vitclk_ctl(state, 0) < 0)
1063                         goto err;
1064
1065                 if (STV090x_WRITE_DEMOD(state, ACLC, 0x1a) < 0)
1066                         goto err;
1067                 if (STV090x_WRITE_DEMOD(state, BCLC, 0x09) < 0)
1068                         goto err;
1069                 if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x22) < 0) /* disable DVB-S2 */
1070                         goto err;
1071
1072                 stv090x_set_vit_thacq(state);
1073                 stv090x_set_viterbi(state);
1074                 break;
1075
1076         case STV090x_SEARCH_DVBS2:
1077                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1078                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
1079                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1080                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1081                         goto err;
1082                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1083                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
1084                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1085                         goto err;
1086
1087                 if (stv090x_vitclk_ctl(state, 1) < 0)
1088                         goto err;
1089
1090                 if (STV090x_WRITE_DEMOD(state, ACLC, 0x1a) < 0) /* stop DVB-S CR loop */
1091                         goto err;
1092                 if (STV090x_WRITE_DEMOD(state, BCLC, 0x09) < 0)
1093                         goto err;
1094                 if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x26) < 0)
1095                         goto err;
1096
1097                 if (state->demod_mode != STV090x_SINGLE) {
1098                         if (state->dev_ver <= 0x11) /* 900 in dual TS mode */
1099                                 stv090x_stop_modcod(state);
1100                         else
1101                                 stv090x_activate_modcod(state);
1102                 }
1103                 break;
1104
1105         case STV090x_SEARCH_AUTO:
1106         default:
1107                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1108                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
1109                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1110                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1111                         goto err;
1112                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1113                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
1114                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1115                         goto err;
1116
1117                 if (stv090x_vitclk_ctl(state, 1) < 0)
1118                         goto err;
1119
1120                 if (STV090x_WRITE_DEMOD(state, ACLC, 0x1a) < 0)
1121                         goto err;
1122                 if (STV090x_WRITE_DEMOD(state, ACLC, 0x09) < 0)
1123                         goto err;
1124                 if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x26) < 0)
1125                         goto err;
1126
1127                 if (state->demod_mode != STV090x_SINGLE) {
1128                         if (state->dev_ver <= 0x11) /* 900 in dual TS mode */
1129                                 stv090x_stop_modcod(state);
1130                         else
1131                                 stv090x_activate_modcod(state);
1132                 }
1133                 stv090x_set_vit_thacq(state);
1134                 stv090x_set_viterbi(state);
1135                 break;
1136         }
1137         return 0;
1138 err:
1139         dprintk(FE_ERROR, 1, "I/O error");
1140         return -1;
1141 }
1142
1143 static int stv090x_start_search(struct stv090x_state *state)
1144 {
1145         u32 reg;
1146
1147         reg = STV090x_READ_DEMOD(state, DMDISTATE);
1148         STV090x_SETFIELD_Px(reg, I2C_DEMOD_MODE_FIELD, 0x1f);
1149         if (STV090x_WRITE_DEMOD(state, DMDISTATE, reg) < 0)
1150                 goto err;
1151
1152         if (state->dev_ver == 0x10) {
1153                 if (STV090x_WRITE_DEMOD(state, CORRELEXP, 0xaa) < 0)
1154                         goto err;
1155         }
1156         if (state->dev_ver < 0x20) {
1157                 if (STV090x_WRITE_DEMOD(state, CARHDR, 0x55) < 0)
1158                         goto err;
1159         }
1160         if (state->srate <= 5000000) {
1161                 if (STV090x_WRITE_DEMOD(state, CARCFG, 0x44) < 0)
1162                         goto err;
1163                 if (STV090x_WRITE_DEMOD(state, CFRUP1, 0x0f) < 0)
1164                         goto err;
1165                 if (STV090x_WRITE_DEMOD(state, CFRUP1, 0xff) < 0)
1166                         goto err;
1167                 if (STV090x_WRITE_DEMOD(state, CFRLOW1, 0xf0) < 0)
1168                         goto err;
1169                 if (STV090x_WRITE_DEMOD(state, CFRLOW0, 0x00) < 0)
1170                         goto err;
1171
1172                 /*enlarge the timing bandwith for Low SR*/
1173                 if (STV090x_WRITE_DEMOD(state, RTCS2, 0x68) < 0)
1174                         goto err;
1175         } else {
1176                 /* If the symbol rate is >5 Msps
1177                 Set The carrier search up and low to auto mode */
1178                 if (STV090x_WRITE_DEMOD(state, CARCFG, 0xc4) < 0)
1179                         goto err;
1180                 /*reduce the timing bandwith for high SR*/
1181                 if (STV090x_WRITE_DEMOD(state, RTCS2, 0x44) < 0)
1182                         goto err;
1183         }
1184         if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0) < 0)
1185                 goto err;
1186         if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0) < 0)
1187                 goto err;
1188
1189         if (state->dev_ver >= 0x20) {
1190                 if (STV090x_WRITE_DEMOD(state, EQUALCFG, 0x41) < 0)
1191                         goto err;
1192                 if (STV090x_WRITE_DEMOD(state, FFECFG, 0x41) < 0)
1193                         goto err;
1194
1195                 if ((state->search_mode == STV090x_DVBS1)       ||
1196                         (state->search_mode == STV090x_DSS)     ||
1197                         (state->search_mode == STV090x_SEARCH_AUTO)) {
1198
1199                         if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x82) < 0)
1200                                 goto err;
1201                         if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x00) < 0)
1202                                 goto err;
1203                 }
1204         }
1205
1206         if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x00) < 0)
1207                 goto err;
1208         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0xe0) < 0)
1209                 goto err;
1210         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0xc0) < 0)
1211                 goto err;
1212
1213         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1214         STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0);
1215         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1216         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1217                 goto err;
1218         reg = STV090x_READ_DEMOD(state, DMDCFG2);
1219         STV090x_SETFIELD_Px(reg, S1S2_SEQUENTIAL_FIELD, 0x0);
1220         if (STV090x_WRITE_DEMOD(state, DMDCFG2, reg) < 0)
1221                 goto err;
1222
1223         if (state->dev_ver >= 0x20) { /*Frequency offset detector setting*/
1224                 if (state->srate < 10000000) {
1225                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x4c) < 0)
1226                                 goto err;
1227                 } else {
1228                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x4b) < 0)
1229                                 goto err;
1230                 }
1231         } else {
1232                 if (state->srate < 10000000) {
1233                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xef) < 0)
1234                                 goto err;
1235                 } else {
1236                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xed) < 0)
1237                                 goto err;
1238                 }
1239         }
1240
1241         switch (state->algo) {
1242         case STV090x_WARM_SEARCH:/*The symbol rate and the exact carrier Frequency are known */
1243                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
1244                         goto err;
1245                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
1246                         goto err;
1247                 break;
1248
1249         case STV090x_COLD_SEARCH:/*The symbol rate is known*/
1250                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
1251                         goto err;
1252                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
1253                         goto err;
1254                 break;
1255
1256         default:
1257                 break;
1258         }
1259         return 0;
1260 err:
1261         dprintk(FE_ERROR, 1, "I/O error");
1262         return -1;
1263 }
1264
1265 static int stv090x_get_agc2_min_level(struct stv090x_state *state)
1266 {
1267         u32 agc2_min = 0, agc2 = 0, freq_init, freq_step, reg;
1268         s32 i, j, steps, dir;
1269
1270         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
1271                 goto err;
1272         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1273         STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 1);
1274         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 1);
1275         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1276                 goto err;
1277
1278         if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x83) < 0) /* SR = 65 Msps Max */
1279                 goto err;
1280         if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xc0) < 0)
1281                 goto err;
1282         if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x82) < 0) /* SR= 400 ksps Min */
1283                 goto err;
1284         if (STV090x_WRITE_DEMOD(state, SFRLOW0, 0xa0) < 0)
1285                 goto err;
1286         if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x00) < 0) /* stop acq @ coarse carrier state */
1287                 goto err;
1288         stv090x_set_srate(state, 1000000);
1289
1290         steps  = -1 + state->search_range / 1000000;
1291         steps /= 2;
1292         steps  = (2 * steps) + 1;
1293         if (steps < 0)
1294                 steps = 1;
1295
1296         dir = 1;
1297         freq_step = (1000000 * 256) / (state->mclk / 256);
1298         freq_init = 0;
1299
1300         for (i = 0; i < steps; i++) {
1301                 if (dir > 0)
1302                         freq_init = freq_init + (freq_step * i);
1303                 else
1304                         freq_init = freq_init - (freq_step * i);
1305
1306                 dir = -1;
1307
1308                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5c) < 0) /* Demod RESET */
1309                         goto err;
1310                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, (freq_init >> 8) & 0xff) < 0)
1311                         goto err;
1312                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, freq_init & 0xff) < 0)
1313                         goto err;
1314                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x58) < 0) /* Demod RESET */
1315                         goto err;
1316                 msleep(10);
1317                 for (j = 0; j < 10; j++) {
1318                         agc2 += STV090x_READ_DEMOD(state, AGC2I1) << 8;
1319                         agc2 |= STV090x_READ_DEMOD(state, AGC2I0);
1320                 }
1321                 agc2 /= 10;
1322                 agc2_min = 0xffff;
1323                 if (agc2 < 0xffff)
1324                         agc2_min = agc2;
1325         }
1326
1327         return agc2_min;
1328 err:
1329         dprintk(FE_ERROR, 1, "I/O error");
1330         return -1;
1331 }
1332
1333 static u32 stv090x_get_srate(struct stv090x_state *state, u32 clk)
1334 {
1335         u8 r3, r2, r1, r0;
1336         s32 srate, int_1, int_2, tmp_1, tmp_2;
1337         u32 pow2;
1338
1339         r3 = STV090x_READ_DEMOD(state, SFR3);
1340         r2 = STV090x_READ_DEMOD(state, SFR2);
1341         r1 = STV090x_READ_DEMOD(state, SFR1);
1342         r0 = STV090x_READ_DEMOD(state, SFR0);
1343
1344         srate = ((r3 << 24) | (r2 << 16) | (r1 <<  8) | r0);
1345
1346         pow2 = 1 << 16;
1347         int_1 = clk / pow2;
1348         int_2 = srate / pow2;
1349
1350         tmp_1 = clk % pow2;
1351         tmp_2 = srate % pow2;
1352
1353         srate = (int_1 * int_2) +
1354                 ((int_1 * tmp_2) / pow2) +
1355                 ((int_2 * tmp_1) / pow2);
1356
1357         return srate;
1358 }
1359
1360 static u32 stv090x_srate_srch_coarse(struct stv090x_state *state)
1361 {
1362         struct dvb_frontend *fe = &state->frontend;
1363
1364         int tmg_lock = 0, i;
1365         s32 tmg_cpt = 0, dir = 1, steps, cur_step = 0, freq;
1366         u32 srate_coarse = 0, agc2 = 0, car_step = 1200, reg;
1367
1368         reg = STV090x_READ_DEMOD(state, DMDISTATE);
1369         STV090x_SETFIELD_Px(reg, I2C_DEMOD_MODE_FIELD, 0x1f); /* Demod RESET */
1370         if (STV090x_WRITE_DEMOD(state, DMDISTATE, reg) < 0)
1371                 goto err;
1372         if (STV090x_WRITE_DEMOD(state, TMGCFG, 0x12) < 0)
1373                 goto err;
1374         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0xf0) < 0)
1375                 goto err;
1376         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0xe0) < 0)
1377                 goto err;
1378         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1379         STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 1);
1380         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 1);
1381         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1382                 goto err;
1383
1384         if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x83) < 0)
1385                 goto err;
1386         if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xc0) < 0)
1387                 goto err;
1388         if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x82) < 0)
1389                 goto err;
1390         if (STV090x_WRITE_DEMOD(state, SFRLOW0, 0xa0) < 0)
1391                 goto err;
1392         if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x00) < 0)
1393                 goto err;
1394         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x60) < 0)
1395                 goto err;
1396
1397         if (state->dev_ver >= 0x20) {
1398                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x6a) < 0)
1399                         goto err;
1400                 if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x95) < 0)
1401                         goto err;
1402         } else {
1403                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xed) < 0)
1404                         goto err;
1405                 if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x73) < 0)
1406                         goto err;
1407         }
1408
1409         if (state->srate <= 2000000)
1410                 car_step = 1000;
1411         else if (state->srate <= 5000000)
1412                 car_step = 2000;
1413         else if (state->srate <= 12000000)
1414                 car_step = 3000;
1415         else
1416                 car_step = 5000;
1417
1418         steps  = -1 + ((state->search_range / 1000) / car_step);
1419         steps /= 2;
1420         steps  = (2 * steps) + 1;
1421         if (steps < 0)
1422                 steps = 1;
1423         else if (steps > 10) {
1424                 steps = 11;
1425                 car_step = (state->search_range / 1000) / 10;
1426         }
1427         cur_step = 0;
1428         dir = 1;
1429         freq = state->frequency;
1430
1431         while ((!tmg_lock) && (cur_step < steps)) {
1432                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5f) < 0) /* Demod RESET */
1433                         goto err;
1434                 reg = STV090x_READ_DEMOD(state, DMDISTATE);
1435                 STV090x_SETFIELD_Px(reg, I2C_DEMOD_MODE_FIELD, 0x00); /* trigger acquisition */
1436                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, reg) < 0)
1437                         goto err;
1438                 msleep(50);
1439                 for (i = 0; i < 10; i++) {
1440                         reg = STV090x_READ_DEMOD(state, DSTATUS);
1441                         if (STV090x_GETFIELD_Px(reg, TMGLOCK_QUALITY_FIELD) >= 2)
1442                                 tmg_cpt++;
1443                         agc2 += STV090x_READ_DEMOD(state, AGC2I1) << 8;
1444                         agc2 |= STV090x_READ_DEMOD(state, AGC2I0);
1445                 }
1446                 agc2 /= 10;
1447                 srate_coarse = stv090x_get_srate(state, state->mclk);
1448                 cur_step++;
1449                 dir *= -1;
1450                 if ((tmg_cpt >= 5) && (agc2 < 0x1f00) && (srate_coarse < 55000000) && (srate_coarse > 850000))
1451                         tmg_lock = 1;
1452                 else if (cur_step < steps) {
1453                         if (dir > 0)
1454                                 freq += cur_step * car_step;
1455                         else
1456                                 freq -= cur_step * car_step;
1457
1458                         /* Setup tuner */
1459                         stv090x_i2c_gate_ctrl(fe, 1);
1460
1461                         if (state->config->tuner_set_frequency)
1462                                 state->config->tuner_set_frequency(fe, state->frequency);
1463
1464                         if (state->config->tuner_set_bandwidth)
1465                                 state->config->tuner_set_bandwidth(fe, state->tuner_bw);
1466
1467                         stv090x_i2c_gate_ctrl(fe, 0);
1468                         msleep(50);
1469                         stv090x_i2c_gate_ctrl(fe, 1);
1470
1471                         if (state->config->tuner_get_status)
1472                                 state->config->tuner_get_status(fe, &reg);
1473
1474                         if (reg)
1475                                 dprintk(FE_DEBUG, 1, "Tuner phase locked");
1476                         else
1477                                 dprintk(FE_DEBUG, 1, "Tuner unlocked");
1478
1479                         stv090x_i2c_gate_ctrl(fe, 0);
1480
1481                 }
1482         }
1483         if (!tmg_lock)
1484                 srate_coarse = 0;
1485         else
1486                 srate_coarse = stv090x_get_srate(state, state->mclk);
1487
1488         return srate_coarse;
1489 err:
1490         dprintk(FE_ERROR, 1, "I/O error");
1491         return -1;
1492 }
1493
1494 static u32 stv090x_srate_srch_fine(struct stv090x_state *state)
1495 {
1496         u32 srate_coarse, freq_coarse, sym, reg;
1497
1498         srate_coarse = stv090x_get_srate(state, state->mclk);
1499         freq_coarse  = STV090x_READ_DEMOD(state, CFR2) << 8;
1500         freq_coarse |= STV090x_READ_DEMOD(state, CFR1);
1501         sym = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1502
1503         if (sym < state->srate)
1504                 srate_coarse = 0;
1505         else {
1506                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0) /* Demod RESET */
1507                         goto err;
1508                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0x01) < 0)
1509                         goto err;
1510                 if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0x20) < 0)
1511                         goto err;
1512                 if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0x00) < 0)
1513                         goto err;
1514                 if (STV090x_WRITE_DEMOD(state, TMGCFG, 0xd2) < 0)
1515                         goto err;
1516                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1517                 STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00);
1518                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1519                         goto err;
1520
1521                 if (state->dev_ver >= 0x20) {
1522                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
1523                                 goto err;
1524                 } else {
1525                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xed) < 0)
1526                                 goto err;
1527                 }
1528
1529                 if (srate_coarse > 3000000) {
1530                         sym  = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1531                         sym  = (sym / 1000) * 65536;
1532                         sym /= (state->mclk / 1000);
1533                         if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0)
1534                                 goto err;
1535                         if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0)
1536                                 goto err;
1537                         sym  = 10 * (srate_coarse / 13); /* SFRLOW = SFR - 30% */
1538                         sym  = (sym / 1000) * 65536;
1539                         sym /= (state->mclk / 1000);
1540                         if (STV090x_WRITE_DEMOD(state, SFRLOW1, (sym >> 8) & 0x7f) < 0)
1541                                 goto err;
1542                         if (STV090x_WRITE_DEMOD(state, SFRLOW0, sym & 0xff) < 0)
1543                                 goto err;
1544                         sym  = (srate_coarse / 1000) * 65536;
1545                         sym /= (state->mclk / 1000);
1546                         if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0xff) < 0)
1547                                 goto err;
1548                         if (STV090x_WRITE_DEMOD(state, SFRINIT0, sym & 0xff) < 0)
1549                                 goto err;
1550                 } else {
1551                         sym  = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1552                         sym  = (sym / 100) * 65536;
1553                         sym /= (state->mclk / 100);
1554                         if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0)
1555                                 goto err;
1556                         if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0)
1557                                 goto err;
1558                         sym  = 10 * (srate_coarse / 14); /* SFRLOW = SFR - 30% */
1559                         sym  = (sym / 100) * 65536;
1560                         sym /= (state->mclk / 100);
1561                         if (STV090x_WRITE_DEMOD(state, SFRLOW1, (sym >> 8) & 0x7f) < 0)
1562                                 goto err;
1563                         if (STV090x_WRITE_DEMOD(state, SFRLOW0, sym & 0xff) < 0)
1564                                 goto err;
1565                         sym  = (srate_coarse / 100) * 65536;
1566                         sym /= (state->mclk / 100);
1567                         if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0xff) < 0)
1568                                 goto err;
1569                         if (STV090x_WRITE_DEMOD(state, SFRINIT0, sym & 0xff) < 0)
1570                                 goto err;
1571                 }
1572                 if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x20) < 0)
1573                         goto err;
1574                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, (freq_coarse >> 8) & 0xff) < 0)
1575                         goto err;
1576                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, freq_coarse & 0xff) < 0)
1577                         goto err;
1578                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0) /* trigger acquisition */
1579                         goto err;
1580         }
1581
1582         return srate_coarse;
1583
1584 err:
1585         dprintk(FE_ERROR, 1, "I/O error");
1586         return -1;
1587 }
1588
1589 static int stv090x_get_dmdlock(struct stv090x_state *state, s32 timeout)
1590 {
1591         s32 timer = 0, lock = 0;
1592         u32 reg;
1593         u8 stat;
1594
1595         while ((timer < timeout) && (!lock)) {
1596                 reg = STV090x_READ_DEMOD(state, DMDSTATE);
1597                 stat = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
1598
1599                 switch (stat) {
1600                 case 0: /* searching */
1601                 case 1: /* first PLH detected */
1602                 default:
1603                         dprintk(FE_DEBUG, 1, "Demodulator searching ..");
1604                         lock = 0;
1605                         break;
1606                 case 2: /* DVB-S2 mode */
1607                 case 3: /* DVB-S1/legacy mode */
1608                         reg = STV090x_READ_DEMOD(state, DSTATUS);
1609                         lock = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
1610                         break;
1611                 }
1612
1613                 if (!lock)
1614                         msleep(10);
1615                 else
1616                         dprintk(FE_DEBUG, 1, "Demodulator acquired LOCK");
1617
1618                 timer += 10;
1619         }
1620         return lock;
1621 }
1622
1623 static int stv090x_blind_search(struct stv090x_state *state)
1624 {
1625         u32 agc2, reg, srate_coarse;
1626         s32 timeout_dmd = 500, cpt_fail, agc2_ovflw, i;
1627         u8 k_ref, k_max, k_min;
1628         int coarse_fail, lock;
1629
1630         if (state->dev_ver < 0x20) {
1631                 k_max = 233;
1632                 k_min = 143;
1633         } else {
1634                 k_max = 120;
1635                 k_min = 30;
1636         }
1637
1638         agc2 = stv090x_get_agc2_min_level(state);
1639
1640         if (agc2 > STV090x_SEARCH_AGC2_TH) {
1641                 lock = 0;
1642         } else {
1643                 if (state->dev_ver == 0x10) {
1644                         if (STV090x_WRITE_DEMOD(state, CORRELEXP, 0xaa) < 0)
1645                                 goto err;
1646                 }
1647                 if (state->dev_ver < 0x20) {
1648                         if (STV090x_WRITE_DEMOD(state, CARHDR, 0x55) < 0)
1649                                 goto err;
1650                 }
1651
1652                 if (STV090x_WRITE_DEMOD(state, CARCFG, 0xc4) < 0)
1653                         goto err;
1654                 if (STV090x_WRITE_DEMOD(state, RTCS2, 0x44) < 0)
1655                         goto err;
1656                 if (state->dev_ver >= 0x20) {
1657                         if (STV090x_WRITE_DEMOD(state, EQUALCFG, 0x41) < 0)
1658                                 goto err;
1659                         if (STV090x_WRITE_DEMOD(state, FFECFG, 0x41) < 0)
1660                                 goto err;
1661                         if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x82) < 0)
1662                                 goto err;
1663                         if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x00) < 0) /* set viterbi hysteresis */
1664                                 goto err;
1665                 }
1666
1667                 k_ref = k_max;
1668                 do {
1669                         if (STV090x_WRITE_DEMOD(state, KREFTMG, k_ref) < 0)
1670                                 goto err;
1671                         if (stv090x_srate_srch_coarse(state) != 0) {
1672                                 srate_coarse = stv090x_srate_srch_fine(state);
1673                                 if (srate_coarse != 0) {
1674                                         stv090x_get_lock_tmg(state);
1675                                         lock = stv090x_get_dmdlock(state, timeout_dmd);
1676                                 } else {
1677                                         lock = 0;
1678                                 }
1679                         } else {
1680                                 cpt_fail = 0;
1681                                 agc2_ovflw = 0;
1682                                 for (i = 0; i < 10; i++) {
1683                                         agc2  = STV090x_READ_DEMOD(state, AGC2I1) << 8;
1684                                         agc2 |= STV090x_READ_DEMOD(state, AGC2I0);
1685                                         if (agc2 >= 0xff00)
1686                                                 agc2_ovflw++;
1687                                         reg = STV090x_READ_DEMOD(state, DSTATUS2);
1688                                         if ((STV090x_GETFIELD_Px(reg, CFR_OVERFLOW_FIELD) == 0x01) &&
1689                                             (STV090x_GETFIELD_Px(reg, DEMOD_DELOCK_FIELD) == 0x01))
1690
1691                                                 cpt_fail++;
1692                                 }
1693                                 if ((cpt_fail > 7) || (agc2_ovflw > 7))
1694                                         coarse_fail = 1;
1695
1696                                 lock = 0;
1697                         }
1698                         k_ref -= 30;
1699                 } while ((k_ref >= k_min) && (!lock) && (!coarse_fail));
1700         }
1701
1702         return lock;
1703
1704 err:
1705         dprintk(FE_ERROR, 1, "I/O error");
1706         return -1;
1707 }
1708
1709 static int stv090x_chk_tmg(struct stv090x_state *state)
1710 {
1711         u32 reg;
1712         s32 tmg_cpt, i;
1713         u8 freq, tmg_thh, tmg_thl;
1714         int tmg_lock;
1715
1716         freq = STV090x_READ_DEMOD(state, CARFREQ);
1717         tmg_thh = STV090x_READ_DEMOD(state, TMGTHRISE);
1718         tmg_thl = STV090x_READ_DEMOD(state, TMGTHFALL);
1719         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0x20) < 0)
1720                 goto err;
1721         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0x00) < 0)
1722                 goto err;
1723
1724         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1725         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00); /* stop carrier offset search */
1726         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1727                 goto err;
1728         if (STV090x_WRITE_DEMOD(state, RTC, 0x80) < 0)
1729                 goto err;
1730
1731         if (STV090x_WRITE_DEMOD(state, RTCS2, 0x40) < 0)
1732                 goto err;
1733         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x00) < 0)
1734                 goto err;
1735
1736         if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0) /* set car ofset to 0 */
1737                 goto err;
1738         if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
1739                 goto err;
1740         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x65) < 0)
1741                 goto err;
1742
1743         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0) /* trigger acquisition */
1744                 goto err;
1745         msleep(10);
1746
1747         for (i = 0; i < 10; i++) {
1748                 reg = STV090x_READ_DEMOD(state, DSTATUS);
1749                 if (STV090x_GETFIELD_Px(reg, TMGLOCK_QUALITY_FIELD) >= 2)
1750                         tmg_cpt++;
1751                 msleep(1);
1752         }
1753         if (tmg_cpt >= 3)
1754                 tmg_lock = 1;
1755
1756         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
1757                 goto err;
1758         if (STV090x_WRITE_DEMOD(state, RTC, 0x88) < 0) /* DVB-S1 timing */
1759                 goto err;
1760         if (STV090x_WRITE_DEMOD(state, RTCS2, 0x68) < 0) /* DVB-S2 timing */
1761                 goto err;
1762
1763         if (STV090x_WRITE_DEMOD(state, CARFREQ, freq) < 0)
1764                 goto err;
1765         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, tmg_thh) < 0)
1766                 goto err;
1767         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, tmg_thl) < 0)
1768                 goto err;
1769
1770         return  tmg_lock;
1771
1772 err:
1773         dprintk(FE_ERROR, 1, "I/O error");
1774         return -1;
1775 }
1776
1777 static int stv090x_get_coldlock(struct stv090x_state *state, s32 timeout_dmd)
1778 {
1779         struct dvb_frontend *fe = &state->frontend;
1780
1781         u32 reg;
1782         s32 car_step, steps, cur_step, dir, freq, timeout_lock;
1783         int lock = 0;
1784
1785         if (state->srate >= 10000000)
1786                 timeout_lock = timeout_dmd / 3;
1787         else
1788                 timeout_lock = timeout_dmd / 2;
1789
1790         lock = stv090x_get_dmdlock(state, timeout_lock); /* cold start wait */
1791         if (!lock) {
1792                 if (state->srate >= 10000000) {
1793                         if (stv090x_chk_tmg(state)) {
1794                                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
1795                                         goto err;
1796                                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
1797                                         goto err;
1798                                 lock = stv090x_get_dmdlock(state, timeout_dmd);
1799                         } else {
1800                                 lock = 0;
1801                         }
1802                 } else {
1803                         if (state->srate <= 4000000)
1804                                 car_step = 1000;
1805                         else if (state->srate <= 7000000)
1806                                 car_step = 2000;
1807                         else if (state->srate <= 10000000)
1808                                 car_step = 3000;
1809                         else
1810                                 car_step = 5000;
1811
1812                         steps  = (state->search_range / 1000) / car_step;
1813                         steps /= 2;
1814                         steps  = 2 * (steps + 1);
1815                         if (steps < 0)
1816                                 steps = 2;
1817                         else if (steps > 12)
1818                                 steps = 12;
1819
1820                         cur_step = 1;
1821                         dir = 1;
1822
1823                         if (!lock) {
1824                                 freq = state->frequency;
1825                                 state->tuner_bw = stv090x_car_width(state->srate, state->rolloff) + state->srate;
1826                                 while ((cur_step <= steps) && (!lock)) {
1827                                         if (dir > 0)
1828                                                 freq += cur_step * car_step;
1829                                         else
1830                                                 freq -= cur_step * car_step;
1831
1832                                         /* Setup tuner */
1833                                         stv090x_i2c_gate_ctrl(fe, 1);
1834
1835                                         if (state->config->tuner_set_frequency)
1836                                                 state->config->tuner_set_frequency(fe, state->frequency);
1837
1838                                         if (state->config->tuner_set_bandwidth)
1839                                                 state->config->tuner_set_bandwidth(fe, state->tuner_bw);
1840
1841                                         stv090x_i2c_gate_ctrl(fe, 0);
1842
1843                                         msleep(50);
1844
1845                                         stv090x_i2c_gate_ctrl(fe, 1);
1846
1847                                         if (state->config->tuner_get_status)
1848                                                 state->config->tuner_get_status(fe, &reg);
1849
1850                                         if (reg)
1851                                                 dprintk(FE_DEBUG, 1, "Tuner phase locked");
1852                                         else
1853                                                 dprintk(FE_DEBUG, 1, "Tuner unlocked");
1854
1855                                         stv090x_i2c_gate_ctrl(fe, 0);
1856
1857                                         STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c);
1858                                         if (state->delsys == STV090x_DVBS2) {
1859                                                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1860                                                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
1861                                                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1862                                                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1863                                                         goto err;
1864                                                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1865                                                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
1866                                                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1867                                                         goto err;
1868                                         }
1869                                         if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0)
1870                                                 goto err;
1871                                         if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
1872                                                 goto err;
1873                                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
1874                                                 goto err;
1875                                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
1876                                                 goto err;
1877                                         lock = stv090x_get_dmdlock(state, (timeout_dmd / 3));
1878
1879                                         dir *= -1;
1880                                         cur_step++;
1881                                 }
1882                         }
1883                 }
1884         }
1885
1886         return lock;
1887
1888 err:
1889         dprintk(FE_ERROR, 1, "I/O error");
1890         return -1;
1891 }
1892
1893 static int stv090x_get_loop_params(struct stv090x_state *state, s32 *freq_inc, s32 *timeout_sw, s32 *steps)
1894 {
1895         s32 timeout, inc, steps_max, srate, car_max;
1896
1897         srate = state->srate;
1898         car_max = state->search_range / 1000;
1899         car_max  = 65536 * (car_max / 2);
1900         car_max /= (state->mclk / 1000);
1901
1902         if (car_max > 0x4000)
1903                 car_max = 0x4000 ; /* maxcarrier should be<= +-1/4 Mclk */
1904
1905         inc  = srate;
1906         inc /= state->mclk / 1000;
1907         inc *= 256;
1908         inc *= 256;
1909         inc /= 1000;
1910
1911         switch (state->algo) {
1912         case STV090x_SEARCH_DVBS1:
1913         case STV090x_SEARCH_DSS:
1914                 inc *= 3; /* freq step = 3% of srate */
1915                 timeout = 20;
1916                 break;
1917
1918         case STV090x_SEARCH_DVBS2:
1919                 inc *= 4;
1920                 timeout = 25;
1921                 break;
1922
1923         case STV090x_SEARCH_AUTO:
1924         default:
1925                 inc *= 3;
1926                 timeout = 25;
1927                 break;
1928         }
1929         inc /= 100;
1930         if ((inc > car_max) || (inc < 0))
1931                 inc = car_max / 2; /* increment <= 1/8 Mclk */
1932
1933         timeout *= 27500; /* 27.5 Msps reference */
1934         if (srate > 0)
1935                 timeout /= (srate / 1000);
1936
1937         if ((timeout > 100) || (timeout < 0))
1938                 timeout = 100;
1939
1940         steps_max = (car_max / inc) + 1; /* min steps = 3 */
1941         if ((steps_max > 100) || (steps_max < 0)) {
1942                 steps_max = 100; /* max steps <= 100 */
1943                 inc = car_max / steps_max;
1944         }
1945         *freq_inc = inc;
1946         *timeout_sw = timeout;
1947         *steps = steps_max;
1948
1949         return 0;
1950 }
1951
1952 static int stv090x_chk_signal(struct stv090x_state *state)
1953 {
1954         s32 offst_car, agc2, car_max;
1955         int no_signal;
1956
1957         offst_car  = STV090x_READ_DEMOD(state, CFR2) << 8;
1958         offst_car |= STV090x_READ_DEMOD(state, CFR1);
1959
1960         agc2  = STV090x_READ_DEMOD(state, AGC2I1) << 8;
1961         agc2 |= STV090x_READ_DEMOD(state, AGC2I0);
1962         car_max = state->search_range / 1000;
1963
1964         car_max += (car_max / 10); /* 10% margin */
1965         car_max  = (65536 * car_max / 2);
1966         car_max /= state->mclk / 1000;
1967
1968         if (car_max > 0x4000)
1969                 car_max = 0x4000;
1970
1971         if ((agc2 > 0x2000) || (offst_car > 2 * car_max) || (offst_car < -2 * car_max)) {
1972                 no_signal = 1;
1973                 dprintk(FE_DEBUG, 1, "No Signal");
1974         } else {
1975                 no_signal = 0;
1976                 dprintk(FE_DEBUG, 1, "Found Signal");
1977         }
1978
1979         return no_signal;
1980 }
1981
1982 static int stv090x_search_car_loop(struct stv090x_state *state, s32 inc, s32 timeout, int zigzag, s32 steps_max)
1983 {
1984         int no_signal, lock = 0;
1985         s32 cpt_step, offst_freq, car_max;
1986         u32 reg;
1987
1988         car_max  = state->search_range / 1000;
1989         car_max += (car_max / 10);
1990         car_max  = (65536 * car_max / 2);
1991         car_max /= (state->mclk / 1000);
1992         if (car_max > 0x4000)
1993                 car_max = 0x4000;
1994
1995         if (zigzag)
1996                 offst_freq = 0;
1997         else
1998                 offst_freq = -car_max + inc;
1999
2000         cpt_step = 0;
2001         do {
2002                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c) < 0)
2003                         goto err;
2004                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, ((offst_freq / 256) & 0xff)) < 0)
2005                         goto err;
2006                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, offst_freq & 0xff) < 0)
2007                         goto err;
2008                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
2009                         goto err;
2010
2011                 reg = STV090x_READ_DEMOD(state, PDELCTRL1);
2012                 STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x1); /* stop DVB-S2 packet delin */
2013                 if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
2014                         goto err;
2015
2016                 if (state->dev_ver == 0x12) {
2017                         reg = STV090x_READ_DEMOD(state, TSCFGH);
2018                         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x1);
2019                         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
2020                                 goto err;
2021                 }
2022
2023                 if (zigzag) {
2024                         if (offst_freq >= 0)
2025                                 offst_freq = -offst_freq - 2 * inc;
2026                         else
2027                                 offst_freq = -offst_freq;
2028                 } else {
2029                         offst_freq += 2 * inc;
2030                 }
2031
2032                 lock = stv090x_get_dmdlock(state, timeout);
2033                 no_signal = stv090x_chk_signal(state);
2034
2035         } while ((!lock) &&
2036                  (!no_signal) &&
2037                   ((offst_freq - inc) < car_max) &&
2038                   ((offst_freq + inc) > -car_max) &&
2039                   (cpt_step < steps_max));
2040
2041         reg = STV090x_READ_DEMOD(state, PDELCTRL1);
2042         STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0);
2043         if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
2044                         goto err;
2045
2046         return lock;
2047 err:
2048         dprintk(FE_ERROR, 1, "I/O error");
2049         return -1;
2050 }
2051
2052 static int stv090x_sw_algo(struct stv090x_state *state)
2053 {
2054         int no_signal, zigzag, lock = 0;
2055         u32 reg;
2056
2057         s32 dvbs2_fly_wheel;
2058         s32 inc, timeout_step, trials, steps_max;
2059
2060         stv090x_get_loop_params(state, &inc, &timeout_step, &steps_max); /* get params */
2061
2062         switch (state->algo) {
2063         case STV090x_SEARCH_DVBS1:
2064         case STV090x_SEARCH_DSS:
2065                 /* accelerate the frequency detector */
2066                 if (state->dev_ver >= 0x20) {
2067                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x3B) < 0)
2068                                 goto err;
2069                 } else {
2070                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xef) < 0)
2071                                 goto err;
2072                 }
2073                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x49) < 0)
2074                         goto err;
2075                 zigzag = 0;
2076                 break;
2077
2078         case STV090x_SEARCH_DVBS2:
2079                 if (state->dev_ver >= 0x20) {
2080                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2081                                 goto err;
2082                 } else {
2083                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x68) < 0)
2084                                 goto err;
2085                 }
2086                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x89) < 0)
2087                         goto err;
2088                 zigzag = 1;
2089                 break;
2090
2091         case STV090x_SEARCH_AUTO:
2092         default:
2093                 /* accelerate the frequency detector */
2094                 if (state->dev_ver >= 0x20) {
2095                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x3b) < 0)
2096                                 goto err;
2097                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2098                                 goto err;
2099                 } else {
2100                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xef) < 0)
2101                                 goto err;
2102                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x68) < 0)
2103                                 goto err;
2104                 }
2105                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x69) < 0)
2106                         goto err;
2107                 zigzag = 0;
2108                 break;
2109         }
2110
2111         trials = 0;
2112         do {
2113                 lock = stv090x_search_car_loop(state, inc, timeout_step, zigzag, steps_max);
2114                 no_signal = stv090x_chk_signal(state);
2115                 trials++;
2116
2117                 /*run the SW search 2 times maximum*/
2118                 if (lock || no_signal || (trials == 2)) {
2119                         /*Check if the demod is not losing lock in DVBS2*/
2120                         if (state->dev_ver >= 0x20) {
2121                                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
2122                                         goto err;
2123                                 if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x9e) < 0)
2124                                         goto err;
2125                         } else {
2126                                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xed) < 0)
2127                                         goto err;
2128                                 if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x88) < 0)
2129                                         goto err;
2130                         }
2131
2132                         reg = STV090x_READ_DEMOD(state, DMDSTATE);
2133                         if ((lock) && (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == STV090x_DVBS2)) {
2134                                 /*Check if the demod is not losing lock in DVBS2*/
2135                                 msleep(timeout_step);
2136                                 reg = STV090x_READ_DEMOD(state, DMDFLYW);
2137                                 dvbs2_fly_wheel = STV090x_GETFIELD_Px(reg, FLYWHEEL_CPT_FIELD);
2138                                 if (dvbs2_fly_wheel < 0xd) {     /*if correct frames is decrementing */
2139                                         msleep(timeout_step);
2140                                         reg = STV090x_READ_DEMOD(state, DMDFLYW);
2141                                         dvbs2_fly_wheel = STV090x_GETFIELD_Px(reg, FLYWHEEL_CPT_FIELD);
2142                                 }
2143                                 if (dvbs2_fly_wheel < 0xd) {
2144                                         /*FALSE lock, The demod is loosing lock */
2145                                         lock = 0;
2146                                         if (trials < 2) {
2147                                                 if (state->dev_ver >= 0x20) {
2148                                                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2149                                                                 goto err;
2150                                                 } else {
2151                                                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x68) < 0)
2152                                                                 goto err;
2153                                                 }
2154                                                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x89) < 0)
2155                                                         goto err;
2156                                         }
2157                                 }
2158                         }
2159                 }
2160         } while ((!lock) && (trials < 2) && (!no_signal));
2161
2162         return lock;
2163 err:
2164         dprintk(FE_ERROR, 1, "I/O error");
2165         return -1;
2166 }
2167
2168 static enum stv090x_delsys stv090x_get_std(struct stv090x_state *state)
2169 {
2170         u32 reg;
2171         enum stv090x_delsys delsys;
2172
2173         reg = STV090x_READ_DEMOD(state, DMDSTATE);
2174         if (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == 2)
2175                 delsys = STV090x_DVBS2;
2176         else if (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == 3) {
2177                 reg = STV090x_READ_DEMOD(state, FECM);
2178                 if (STV090x_GETFIELD_Px(reg, DSS_DVB_FIELD) == 1)
2179                         delsys = STV090x_DSS;
2180                 else
2181                         delsys = STV090x_DVBS1;
2182         } else {
2183                 delsys = STV090x_ERROR;
2184         }
2185
2186         return delsys;
2187 }
2188
2189 /* in Hz */
2190 static s32 stv090x_get_car_freq(struct stv090x_state *state, u32 mclk)
2191 {
2192         s32 derot, int_1, int_2, tmp_1, tmp_2;
2193         u32 pow2;
2194
2195         derot  = STV090x_READ_DEMOD(state, CFR2) << 16;
2196         derot |= STV090x_READ_DEMOD(state, CFR1) <<  8;
2197         derot |= STV090x_READ_DEMOD(state, CFR0);
2198
2199         derot = comp2(derot, 24);
2200         pow2 = 1 << 12;
2201         int_1 = state->mclk / pow2;
2202         int_2 = derot / pow2;
2203
2204         tmp_1 = state->mclk % pow2;
2205         tmp_2 = derot % pow2;
2206
2207         derot = (int_1 * int_2) +
2208                 ((int_1 * tmp_2) / pow2) +
2209                 ((int_1 * tmp_1) / pow2);
2210
2211         return derot;
2212 }
2213
2214 static int stv090x_get_viterbi(struct stv090x_state *state)
2215 {
2216         u32 reg, rate;
2217
2218         reg = STV090x_READ_DEMOD(state, VITCURPUN);
2219         rate = STV090x_GETFIELD_Px(reg, VIT_CURPUN_FIELD);
2220
2221         switch (rate) {
2222         case 13:
2223                 state->fec = STV090x_PR12;
2224                 break;
2225
2226         case 18:
2227                 state->fec = STV090x_PR23;
2228                 break;
2229
2230         case 21:
2231                 state->fec = STV090x_PR34;
2232                 break;
2233
2234         case 24:
2235                 state->fec = STV090x_PR56;
2236                 break;
2237
2238         case 25:
2239                 state->fec = STV090x_PR67;
2240                 break;
2241
2242         case 26:
2243                 state->fec = STV090x_PR78;
2244                 break;
2245
2246         default:
2247                 state->fec = STV090x_PRERR;
2248                 break;
2249         }
2250
2251         return 0;
2252 }
2253
2254 static enum stv090x_signal_state stv090x_get_sig_params(struct stv090x_state *state)
2255 {
2256         struct dvb_frontend *fe = &state->frontend;
2257
2258         u8 tmg;
2259         u32 reg;
2260         s32 i = 0, offst_freq;
2261
2262         msleep(5);
2263
2264         if (state->algo == STV090x_BLIND_SEARCH) {
2265                 tmg = STV090x_READ_DEMOD(state, TMGREG2);
2266                 STV090x_WRITE_DEMOD(state, SFRSTEP, 0x5c);
2267                 while ((i <= 50) && (!tmg) && (tmg != 0xff)) {
2268                         tmg = STV090x_READ_DEMOD(state, TMGREG2);
2269                         msleep(5);
2270                         i += 5;
2271                 }
2272         }
2273         state->delsys = stv090x_get_std(state);
2274
2275         stv090x_i2c_gate_ctrl(fe, 1);
2276
2277         if (state->config->tuner_get_frequency)
2278                 state->config->tuner_get_frequency(fe, &state->frequency);
2279
2280         stv090x_i2c_gate_ctrl(fe, 0);
2281
2282         offst_freq = stv090x_get_car_freq(state, state->mclk) / 1000;
2283         state->frequency += offst_freq;
2284         stv090x_get_viterbi(state);
2285         reg = STV090x_READ_DEMOD(state, DMDMODCOD);
2286         state->modcod = STV090x_GETFIELD_Px(reg, DEMOD_MODCOD_FIELD);
2287         state->pilots = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) & 0x01;
2288         state->frame_len = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) >> 1;
2289         reg = STV090x_READ_DEMOD(state, TMGOBS);
2290         state->rolloff = STV090x_GETFIELD_Px(reg, ROLLOFF_STATUS_FIELD);
2291         reg = STV090x_READ_DEMOD(state, FECM);
2292         state->inversion = STV090x_GETFIELD_Px(reg, IQINV_FIELD);
2293
2294         if ((state->algo == STV090x_BLIND_SEARCH) || (state->srate < 10000000)) {
2295
2296                 stv090x_i2c_gate_ctrl(fe, 1);
2297
2298                 if (state->config->tuner_get_frequency)
2299                         state->config->tuner_get_frequency(fe, &state->frequency);
2300
2301                 stv090x_i2c_gate_ctrl(fe, 0);
2302
2303                 if (abs(offst_freq) <= ((state->search_range / 2000) + 500))
2304                         return  STV090x_RANGEOK;
2305                 else if (abs(offst_freq) <= (stv090x_car_width(state->srate, state->rolloff) / 2000))
2306                         return STV090x_RANGEOK;
2307                 else
2308                         return STV090x_OUTOFRANGE; /* Out of Range */
2309         } else {
2310                 if (abs(offst_freq) <= ((state->search_range / 2000) + 500))
2311                         return STV090x_RANGEOK;
2312                 else
2313                         return STV090x_OUTOFRANGE;
2314         }
2315
2316         return STV090x_OUTOFRANGE;
2317 }
2318
2319 static u32 stv090x_get_tmgoffst(struct stv090x_state *state, u32 srate)
2320 {
2321         s32 offst_tmg;
2322         s32 pow2;
2323
2324         offst_tmg  = STV090x_READ_DEMOD(state, TMGREG2) << 16;
2325         offst_tmg |= STV090x_READ_DEMOD(state, TMGREG1) <<  8;
2326         offst_tmg |= STV090x_READ_DEMOD(state, TMGREG0);
2327
2328         pow2 = 1 << 24;
2329
2330         offst_tmg = comp2(offst_tmg, 24); /* 2's complement */
2331         if (!offst_tmg)
2332                 offst_tmg = 1;
2333
2334         offst_tmg  = ((s32) srate * 10) / (pow2 / offst_tmg);
2335         offst_tmg /= 320;
2336
2337         return offst_tmg;
2338 }
2339
2340 static u8 stv090x_optimize_carloop(struct stv090x_state *state, enum stv090x_modcod modcod, s32 pilots)
2341 {
2342         u8 aclc = 0x29;
2343         s32 i;
2344         struct stv090x_long_frame_crloop *car_loop;
2345
2346         if (state->dev_ver <= 0x12)
2347                 car_loop = stv090x_s2_crl;
2348         else if (state->dev_ver == 0x20)
2349                 car_loop = stv090x_s2_crl_cut20;
2350         else
2351                 car_loop = stv090x_s2_crl;
2352
2353
2354         if (modcod < STV090x_QPSK_12) {
2355                 i = 0;
2356                 while ((i < 3) && (modcod != stv090x_s2_lowqpsk_crl_cut20[i].modcod))
2357                         i++;
2358
2359                 if (i >= 3)
2360                         i = 2;
2361
2362         } else {
2363                 i = 0;
2364                 while ((i < 14) && (modcod != car_loop[i].modcod))
2365                         i++;
2366
2367                 if (i >= 14) {
2368                         i = 0;
2369                         while ((i < 11) && (modcod != stv090x_s2_lowqpsk_crl_cut20[i].modcod))
2370                                 i++;
2371
2372                         if (i >= 11)
2373                                 i = 10;
2374                 }
2375         }
2376
2377         if (modcod <= STV090x_QPSK_25) {
2378                 if (pilots) {
2379                         if (state->srate <= 3000000)
2380                                 aclc = stv090x_s2_lowqpsk_crl_cut20[i].crl_pilots_on_2;
2381                         else if (state->srate <= 7000000)
2382                                 aclc = stv090x_s2_lowqpsk_crl_cut20[i].crl_pilots_on_5;
2383                         else if (state->srate <= 15000000)
2384                                 aclc = stv090x_s2_lowqpsk_crl_cut20[i].crl_pilots_on_10;
2385                         else if (state->srate <= 25000000)
2386                                 aclc = stv090x_s2_lowqpsk_crl_cut20[i].crl_pilots_on_20;
2387                         else
2388                                 aclc = stv090x_s2_lowqpsk_crl_cut20[i].crl_pilots_on_30;
2389                 } else {
2390                         if (state->srate <= 3000000)
2391                                 aclc = stv090x_s2_lowqpsk_crl_cut20[i].crl_pilots_off_2;
2392                         else if (state->srate <= 7000000)
2393                                 aclc = stv090x_s2_lowqpsk_crl_cut20[i].crl_pilots_off_5;
2394                         else if (state->srate <= 15000000)
2395                                 aclc = stv090x_s2_lowqpsk_crl_cut20[i].crl_pilots_off_10;
2396                         else if (state->srate <= 25000000)
2397                                 aclc = stv090x_s2_lowqpsk_crl_cut20[i].crl_pilots_off_20;
2398                         else
2399                                 aclc = stv090x_s2_lowqpsk_crl_cut20[i].crl_pilots_off_30;
2400                 }
2401
2402         } else if (modcod <= STV090x_8PSK_910) {
2403                 if (pilots) {
2404                         if (state->srate <= 3000000)
2405                                 aclc = car_loop[i].crl_pilots_on_2;
2406                         else if (state->srate <= 7000000)
2407                                 aclc = car_loop[i].crl_pilots_on_5;
2408                         else if (state->srate <= 15000000)
2409                                 aclc = car_loop[i].crl_pilots_on_10;
2410                         else if (state->srate <= 25000000)
2411                                 aclc = car_loop[i].crl_pilots_on_20;
2412                         else
2413                                 aclc = car_loop[i].crl_pilots_on_30;
2414                 } else {
2415                         if (state->srate <= 3000000)
2416                                 aclc = car_loop[i].crl_pilots_off_2;
2417                         else if (state->srate <= 7000000)
2418                                 aclc = car_loop[i].crl_pilots_off_5;
2419                         else if (state->srate <= 15000000)
2420                                 aclc = car_loop[i].crl_pilots_off_10;
2421                         else if (state->srate <= 25000000)
2422                                 aclc = car_loop[i].crl_pilots_off_20;
2423                         else
2424                                 aclc = car_loop[i].crl_pilots_off_30;
2425                 }
2426         } else { /* 16APSK and 32APSK */
2427                 if (state->srate <= 3000000)
2428                         aclc = stv090x_s2_apsk_crl_cut20[i].crl_pilots_on_2;
2429                 else if (state->srate <= 7000000)
2430                         aclc = stv090x_s2_apsk_crl_cut20[i].crl_pilots_on_5;
2431                 else if (state->srate <= 15000000)
2432                         aclc = stv090x_s2_apsk_crl_cut20[i].crl_pilots_on_10;
2433                 else if (state->srate <= 25000000)
2434                         aclc = stv090x_s2_apsk_crl_cut20[i].crl_pilots_on_20;
2435                 else
2436                         aclc = stv090x_s2_apsk_crl_cut20[i].crl_pilots_on_30;
2437         }
2438
2439         return aclc;
2440 }
2441
2442 static u8 stv090x_optimize_carloop_short(struct stv090x_state *state)
2443 {
2444         s32 index = 0;
2445         u8 aclc = 0x0b;
2446
2447         switch (state->modulation) {
2448         case STV090x_QPSK:
2449         default:
2450                 index = 0;
2451                 break;
2452         case STV090x_8PSK:
2453                 index = 1;
2454                 break;
2455         case STV090x_16APSK:
2456                 index = 2;
2457                 break;
2458         case STV090x_32APSK:
2459                 index = 3;
2460                 break;
2461         }
2462
2463         switch (state->dev_ver) {
2464         case 0x20:
2465                 if (state->srate <= 3000000)
2466                         aclc = stv090x_s2_short_crl[index].crl_cut20_2;
2467                 else if (state->srate <= 7000000)
2468                         aclc = stv090x_s2_short_crl[index].crl_cut20_5;
2469                 else if (state->srate <= 15000000)
2470                         aclc = stv090x_s2_short_crl[index].crl_cut20_10;
2471                 else if (state->srate <= 25000000)
2472                         aclc = stv090x_s2_short_crl[index].crl_cut20_20;
2473                 else
2474                         aclc = stv090x_s2_short_crl[index].crl_cut20_30;
2475                 break;
2476
2477         case 0x12:
2478         default:
2479                 if (state->srate <= 3000000)
2480                         aclc = stv090x_s2_short_crl[index].crl_cut12_2;
2481                 else if (state->srate <= 7000000)
2482                         aclc = stv090x_s2_short_crl[index].crl_cut12_5;
2483                 else if (state->srate <= 15000000)
2484                         aclc = stv090x_s2_short_crl[index].crl_cut12_10;
2485                 else if (state->srate <= 25000000)
2486                         aclc = stv090x_s2_short_crl[index].crl_cut12_20;
2487                 else
2488                         aclc = stv090x_s2_short_crl[index].crl_cut12_30;
2489                 break;
2490         }
2491
2492         return aclc;
2493 }
2494
2495 static int stv090x_optimize_track(struct stv090x_state *state)
2496 {
2497         struct dvb_frontend *fe = &state->frontend;
2498
2499         enum stv090x_rolloff rolloff;
2500         enum stv090x_modcod modcod;
2501
2502         s32 srate, pilots, aclc, f_1, f_0, i = 0, blind_tune = 0;
2503         u32 reg;
2504
2505         srate  = stv090x_get_srate(state, state->mclk);
2506         srate += stv090x_get_tmgoffst(state, srate);
2507
2508         switch (state->delsys) {
2509         case STV090x_DVBS1:
2510         case STV090x_DSS:
2511                 if (state->algo == STV090x_SEARCH_AUTO) {
2512                         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2513                         STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
2514                         STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
2515                         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2516                                 goto err;
2517                 }
2518                 reg = STV090x_READ_DEMOD(state, DEMOD);
2519                 STV090x_SETFIELD_Px(reg, ROLLOFF_CONTROL_FIELD, state->rolloff);
2520                 STV090x_SETFIELD_Px(reg, MANUAL_ROLLOFF_FIELD, 0x01);
2521                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
2522                         goto err;
2523                 if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x75) < 0)
2524                         goto err;
2525                 break;
2526
2527         case STV090x_DVBS2:
2528                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2529                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
2530                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
2531                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2532                         goto err;
2533                 if (STV090x_WRITE_DEMOD(state, ACLC, 0) < 0)
2534                         goto err;
2535                 if (STV090x_WRITE_DEMOD(state, BCLC, 0) < 0)
2536                         goto err;
2537                 if (state->frame_len == STV090x_LONG_FRAME) {
2538                         reg = STV090x_READ_DEMOD(state, DMDMODCOD);
2539                         modcod = STV090x_GETFIELD_Px(reg, DEMOD_MODCOD_FIELD);
2540                         pilots = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) & 0x01;
2541                         aclc = stv090x_optimize_carloop(state, modcod, pilots);
2542                         if (modcod <= STV090x_QPSK_910) {
2543                                 STV090x_WRITE_DEMOD(state, ACLC2S2Q, aclc);
2544                         } else if (modcod <= STV090x_8PSK_910) {
2545                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2546                                         goto err;
2547                                 if (STV090x_WRITE_DEMOD(state, ACLC2S28, aclc) < 0)
2548                                         goto err;
2549                         }
2550                         if ((state->demod_mode == STV090x_SINGLE) && (modcod > STV090x_8PSK_910)) {
2551                                 if (modcod <= STV090x_16APSK_910) {
2552                                         if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2553                                                 goto err;
2554                                         if (STV090x_WRITE_DEMOD(state, ACLC2S216A, aclc) < 0)
2555                                                 goto err;
2556                                 } else {
2557                                         if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2558                                                 goto err;
2559                                         if (STV090x_WRITE_DEMOD(state, ACLC2S232A, aclc) < 0)
2560                                                 goto err;
2561                                 }
2562                         }
2563                 } else {
2564                         /*Carrier loop setting for short frame*/
2565                         aclc = stv090x_optimize_carloop_short(state);
2566                         if (state->modulation == STV090x_QPSK) {
2567                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, aclc) < 0)
2568                                         goto err;
2569                         } else if (state->modulation == STV090x_8PSK) {
2570                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2571                                         goto err;
2572                                 if (STV090x_WRITE_DEMOD(state, ACLC2S28, aclc) < 0)
2573                                         goto err;
2574                         } else if (state->modulation == STV090x_16APSK) {
2575                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2576                                         goto err;
2577                                 if (STV090x_WRITE_DEMOD(state, ACLC2S216A, aclc) < 0)
2578                                         goto err;
2579                         } else if (state->modulation == STV090x_32APSK)  {
2580                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2581                                         goto err;
2582                                 if (STV090x_WRITE_DEMOD(state, ACLC2S232A, aclc) < 0)
2583                                         goto err;
2584                         }
2585                 }
2586                 if (state->dev_ver <= 0x11) {
2587                         if (state->demod_mode != STV090x_SINGLE)
2588                                 stv090x_activate_modcod(state); /* link to LDPC after demod LOCK */
2589                 }
2590                 STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x67); /* PER */
2591                 break;
2592
2593         case STV090x_UNKNOWN:
2594         default:
2595                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2596                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
2597                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
2598                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2599                         goto err;
2600                 break;
2601         }
2602
2603         f_1 = STV090x_READ_DEMOD(state, CFR2);
2604         f_0 = STV090x_READ_DEMOD(state, CFR1);
2605         reg = STV090x_READ_DEMOD(state, TMGOBS);
2606         rolloff = STV090x_GETFIELD_Px(reg, ROLLOFF_STATUS_FIELD);
2607
2608         if (state->algo == STV090x_BLIND_SEARCH) {
2609                 STV090x_WRITE_DEMOD(state, SFRSTEP, 0x00);
2610                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2611                 STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0x00);
2612                 STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00);
2613                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2614                         goto err;
2615                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0x01) < 0)
2616                         goto err;
2617                 stv090x_set_srate(state, srate);
2618                 stv090x_set_max_srate(state, state->mclk, srate);
2619                 stv090x_set_min_srate(state, state->mclk, srate);
2620                 blind_tune = 1;
2621         }
2622
2623         if (state->dev_ver >= 0x20) {
2624                 if ((state->search_mode == STV090x_SEARCH_DVBS1)        ||
2625                     (state->search_mode == STV090x_SEARCH_DSS)          ||
2626                     (state->search_mode == STV090x_SEARCH_AUTO)) {
2627
2628                         if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x0a) < 0)
2629                                 goto err;
2630                         if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x00) < 0)
2631                                 goto err;
2632                 }
2633         }
2634
2635         if (state->dev_ver < 0x20) {
2636                 if (STV090x_WRITE_DEMOD(state, CARHDR, 0x08) < 0)
2637                         goto err;
2638         }
2639         if (state->dev_ver == 0x10) {
2640                 if (STV090x_WRITE_DEMOD(state, CORRELEXP, 0x0a) < 0)
2641                         goto err;
2642         }
2643
2644         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
2645                 goto err;
2646
2647         if ((state->dev_ver >= 0x20) || (blind_tune == 1) || (state->srate < 10000000)) {
2648
2649                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
2650                         goto err;
2651                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
2652                         goto err;
2653                 state->tuner_bw = stv090x_car_width(srate, state->rolloff) + 10000000;
2654
2655                 if ((state->dev_ver >= 0x20) || (blind_tune == 1)) {
2656
2657                         if (state->algo != STV090x_WARM_SEARCH) {
2658
2659                                 stv090x_i2c_gate_ctrl(fe, 1);
2660
2661                                 if (state->config->tuner_set_bandwidth)
2662                                         state->config->tuner_set_bandwidth(fe, state->tuner_bw);
2663
2664                                 stv090x_i2c_gate_ctrl(fe, 0);
2665
2666                         }
2667                 }
2668                 if ((state->algo == STV090x_BLIND_SEARCH) || (state->srate < 10000000))
2669                         msleep(50); /* blind search: wait 50ms for SR stabilization */
2670                 else
2671                         msleep(5);
2672
2673                 stv090x_get_lock_tmg(state);
2674
2675                 if (!(stv090x_get_dmdlock(state, (state->DemodTimeout / 2)))) {
2676                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
2677                                 goto err;
2678                         if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
2679                                 goto err;
2680                         if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
2681                                 goto err;
2682                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
2683                                 goto err;
2684
2685                         i = 0;
2686
2687                         while ((!(stv090x_get_dmdlock(state, (state->DemodTimeout / 2)))) && (i <= 2)) {
2688
2689                                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
2690                                         goto err;
2691                                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
2692                                         goto err;
2693                                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
2694                                         goto err;
2695                                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
2696                                         goto err;
2697                                 i++;
2698                         }
2699                 }
2700
2701         }
2702
2703         if (state->dev_ver >= 0x20) {
2704                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
2705                         goto err;
2706         }
2707         if ((state->delsys == STV090x_DVBS1) || (state->delsys == STV090x_DSS))
2708                 stv090x_set_vit_thtracq(state);
2709
2710         return 0;
2711 err:
2712         dprintk(FE_ERROR, 1, "I/O error");
2713         return -1;
2714 }
2715
2716 static int stv090x_get_feclock(struct stv090x_state *state, s32 timeout)
2717 {
2718         s32 timer = 0, lock = 0, stat;
2719         u32 reg;
2720
2721         while ((timer < timeout) && (!lock)) {
2722                 reg = STV090x_READ_DEMOD(state, DMDSTATE);
2723                 stat = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
2724
2725                 switch (stat) {
2726                 case 0: /* searching */
2727                 case 1: /* first PLH detected */
2728                 default:
2729                         lock = 0;
2730                         break;
2731
2732                 case 2: /* DVB-S2 mode */
2733                         reg = STV090x_READ_DEMOD(state, PDELSTATUS1);
2734                         lock = STV090x_GETFIELD_Px(reg, PKTDELIN_LOCK_FIELD);
2735                         break;
2736
2737                 case 3: /* DVB-S1/legacy mode */
2738                         reg = STV090x_READ_DEMOD(state, VSTATUSVIT);
2739                         lock = STV090x_GETFIELD_Px(reg, LOCKEDVIT_FIELD);
2740                         break;
2741                 }
2742                 if (!lock) {
2743                         msleep(10);
2744                         timer += 10;
2745                 }
2746         }
2747         return lock;
2748 }
2749
2750 static int stv090x_get_lock(struct stv090x_state *state, s32 timeout_dmd, s32 timeout_fec)
2751 {
2752         u32 reg;
2753         s32 timer = 0;
2754         int lock;
2755
2756         lock = stv090x_get_dmdlock(state, timeout_dmd);
2757         if (lock)
2758                 lock = stv090x_get_feclock(state, timeout_fec);
2759
2760         if (lock) {
2761                 lock = 0;
2762
2763                 while ((timer < timeout_fec) && (!lock)) {
2764                         reg = STV090x_READ_DEMOD(state, TSSTATUS);
2765                         lock = STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD);
2766                         msleep(1);
2767                         timer++;
2768                 }
2769         }
2770
2771         return lock;
2772 }
2773
2774 static int stv090x_set_s2rolloff(struct stv090x_state *state)
2775 {
2776         s32 rolloff;
2777         u32 reg;
2778
2779         if (state->dev_ver == 0x10) {
2780                 reg = STV090x_READ_DEMOD(state, DEMOD);
2781                 STV090x_SETFIELD_Px(reg, MANUAL_ROLLOFF_FIELD, 0x01);
2782                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
2783                         goto err;
2784                 rolloff = STV090x_READ_DEMOD(state, MATSTR1) & 0x03;
2785                 reg = STV090x_READ_DEMOD(state, DEMOD);
2786                 STV090x_SETFIELD_Px(reg, ROLLOFF_CONTROL_FIELD, reg);
2787                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
2788                         goto err;
2789         } else {
2790                 reg = STV090x_READ_DEMOD(state, DEMOD);
2791                 STV090x_SETFIELD_Px(reg, MANUAL_ROLLOFF_FIELD, 0x00);
2792                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
2793                         goto err;
2794         }
2795         return 0;
2796 err:
2797         dprintk(FE_ERROR, 1, "I/O error");
2798         return -1;
2799 }
2800
2801 static enum stv090x_signal_state stv090x_acq_fixs1(struct stv090x_state *state)
2802 {
2803         s32 srate, f_1, f_2;
2804         enum stv090x_signal_state signal_state = STV090x_NODATA;
2805         u32 reg;
2806         int lock;
2807
2808         reg = STV090x_READ_DEMOD(state, DMDSTATE);
2809         if (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == 3) { /* DVB-S mode */
2810                 srate  = stv090x_get_srate(state, state->mclk);
2811                 srate += stv090x_get_tmgoffst(state, state->srate);
2812
2813                 if (state->algo == STV090x_BLIND_SEARCH)
2814                         stv090x_set_srate(state, state->srate);
2815
2816                 stv090x_get_lock_tmg(state);
2817
2818                 f_1 = STV090x_READ_DEMOD(state, CFR2);
2819                 f_2 = STV090x_READ_DEMOD(state, CFR1);
2820
2821                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2822                 STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
2823                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2824                         goto err;
2825
2826                 reg = STV090x_READ_DEMOD(state, DEMOD);
2827                 STV090x_SETFIELD_Px(reg, SPECINV_CONTROL_FIELD, STV090x_IQ_SWAP);
2828                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
2829                         goto err;
2830                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c) < 0) /* stop demod */
2831                         goto err;
2832                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
2833                         goto err;
2834                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_2) < 0)
2835                         goto err;
2836                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0) /* warm start trigger */
2837                         goto err;
2838
2839                 if (stv090x_get_lock(state, state->DemodTimeout, state->FecTimeout)) {
2840                         lock = 1;
2841                         stv090x_get_sig_params(state);
2842                         stv090x_optimize_track(state);
2843                 } else {
2844                         reg = STV090x_READ_DEMOD(state, DEMOD);
2845                         STV090x_SETFIELD_Px(reg, SPECINV_CONTROL_FIELD, STV090x_IQ_NORMAL);
2846                         if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
2847                                 goto err;
2848                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c) < 0)
2849                                 goto err;
2850                         if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
2851                                 goto err;
2852                         if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_2) < 0)
2853                                 goto err;
2854                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0) /* warm start trigger */
2855                                 goto err;
2856                         if (stv090x_get_lock(state, state->DemodTimeout, state->FecTimeout)) {
2857                                 lock = 1;
2858                                 signal_state = stv090x_get_sig_params(state);
2859                                 stv090x_optimize_track(state);
2860                         }
2861                 }
2862         } else {
2863                 lock = 0;
2864         }
2865
2866         return signal_state;
2867
2868 err:
2869         dprintk(FE_ERROR, 1, "I/O error");
2870         return -1;
2871 }
2872
2873 static enum stv090x_signal_state stv090x_algo(struct stv090x_state *state)
2874 {
2875         struct dvb_frontend *fe = &state->frontend;
2876         enum stv090x_signal_state signal_state = STV090x_NOCARRIER;
2877         u32 reg;
2878         s32 timeout_dmd = 500, timeout_fec = 50;
2879         int lock = 0, low_sr, no_signal = 0;
2880
2881         reg = STV090x_READ_DEMOD(state, TSCFGH);
2882         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 1); /* Stop path 1 stream merger */
2883         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
2884                 goto err;
2885
2886         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5c) < 0) /* Demod stop */
2887                 goto err;
2888
2889         if (state->dev_ver >= 0x20) {
2890                 if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x9e) < 0) /* cut 2.0 */
2891                         goto err;
2892         } else {
2893                 if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x88) < 0) /* cut 1.x */
2894                         goto err;
2895         }
2896
2897         stv090x_get_lock_tmg(state);
2898
2899         if (state->algo == STV090x_BLIND_SEARCH) {
2900                 state->tuner_bw = 2 * 36000000; /* wide bw for unknown srate */
2901                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0x00) < 0) /* wider srate scan */
2902                         goto err;
2903                 stv090x_set_srate(state, 1000000); /* inital srate = 1Msps */
2904         } else {
2905                 /* known srate */
2906                 if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x20) < 0)
2907                         goto err;
2908                 if (STV090x_WRITE_DEMOD(state, TMGCFG, 0xd2) < 0)
2909                         goto err;
2910
2911                 if (state->srate >= 10000000) {
2912                         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0) /* High SR */
2913                                 goto err;
2914                 } else {
2915                         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x60) < 0) /* Low SR */
2916                                 goto err;
2917                 }
2918
2919                 if (state->dev_ver >= 0x20) {
2920                         if (STV090x_WRITE_DEMOD(state, KREFTMG, 0x5a) < 0)
2921                                 goto err;
2922                         if (state->algo == STV090x_COLD_SEARCH)
2923                                 state->tuner_bw = (15 * (stv090x_car_width(state->srate, state->rolloff) + 1000000)) / 10;
2924                         else if (state->algo == STV090x_WARM_SEARCH)
2925                                 state->tuner_bw = stv090x_car_width(state->srate, state->rolloff) + 10000000;
2926                 } else {
2927                         if (STV090x_WRITE_DEMOD(state, KREFTMG, 0xc1) < 0)
2928                                 goto err;
2929                         state->tuner_bw = (15 * (stv090x_car_width(state->srate, state->rolloff) + 10000000)) / 10;
2930                 }
2931                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0x01) < 0) /* narrow srate scan */
2932                         goto err;
2933                 stv090x_set_srate(state, state->srate);
2934                 stv090x_set_max_srate(state, state->mclk, state->srate);
2935                 stv090x_set_min_srate(state, state->mclk, state->srate);
2936
2937                 if (state->srate >= 10000000)
2938                         low_sr = 1;
2939         }
2940
2941         /* Setup tuner */
2942         stv090x_i2c_gate_ctrl(fe, 1);
2943
2944         if (state->config->tuner_set_bbgain)
2945                 state->config->tuner_set_bbgain(fe, 10); /* 10dB */
2946
2947         if (state->config->tuner_set_frequency)
2948                 state->config->tuner_set_frequency(fe, state->frequency);
2949
2950         if (state->config->tuner_set_bandwidth)
2951                 state->config->tuner_set_bandwidth(fe, state->tuner_bw);
2952
2953         stv090x_i2c_gate_ctrl(fe, 0);
2954
2955         msleep(50);
2956
2957         stv090x_i2c_gate_ctrl(fe, 1);
2958
2959         if (state->config->tuner_get_status)
2960                 state->config->tuner_get_status(fe, &reg);
2961
2962         if (reg)
2963                 dprintk(FE_DEBUG, 1, "Tuner phase locked");
2964         else
2965                 dprintk(FE_DEBUG, 1, "Tuner unlocked");
2966
2967         stv090x_i2c_gate_ctrl(fe, 0);
2968
2969         reg = STV090x_READ_DEMOD(state, DEMOD);
2970         STV090x_SETFIELD_Px(reg, SPECINV_CONTROL_FIELD, state->inversion);
2971         STV090x_SETFIELD_Px(reg, MANUAL_ROLLOFF_FIELD, 1);
2972         if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
2973                 goto err;
2974         stv090x_delivery_search(state);
2975         if (state->algo == STV090x_BLIND_SEARCH)
2976                 stv090x_start_search(state);
2977
2978         if (state->dev_ver == 0x12) {
2979                 reg = STV090x_READ_DEMOD(state, TSCFGH);
2980                 STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
2981                 if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
2982                         goto err;
2983                 msleep(3);
2984                 STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 1); /* merger reset */
2985                 if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
2986                         goto err;
2987                 STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
2988                 if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
2989                         goto err;
2990         }
2991
2992         if (state->algo == STV090x_BLIND_SEARCH)
2993                 lock = stv090x_blind_search(state);
2994         else if (state->algo == STV090x_COLD_SEARCH)
2995                 lock = stv090x_get_coldlock(state, timeout_dmd);
2996         else if (state->algo == STV090x_WARM_SEARCH)
2997                 lock = stv090x_get_dmdlock(state, timeout_dmd);
2998
2999         if ((!lock) && (state->algo == STV090x_COLD_SEARCH)) {
3000                 if (!low_sr) {
3001                         if (stv090x_chk_tmg(state))
3002                                 lock = stv090x_sw_algo(state);
3003                 }
3004         }
3005
3006         if (lock)
3007                 signal_state = stv090x_get_sig_params(state);
3008
3009         if ((lock) && (signal_state == STV090x_RANGEOK)) { /* signal within Range */
3010                 stv090x_optimize_track(state);
3011                 if (state->dev_ver <= 0x11) { /*workaround for dual DVBS1 cut 1.1 and 1.0 only*/
3012                         if (stv090x_get_std(state) == STV090x_DVBS1) {
3013                                 msleep(20);
3014                                 reg = STV090x_READ_DEMOD(state, TSCFGH);
3015                                 STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
3016                                 if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3017                                         goto err;
3018                         } else {
3019                                 reg = STV090x_READ_DEMOD(state, TSCFGH);
3020                                 STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
3021                                 if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3022                                         goto err;
3023                                 msleep(3);
3024                                 STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 1); /* merger reset */
3025                                 if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3026                                         goto err;
3027                                 STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
3028                                 if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3029                                         goto err;
3030                         }
3031                 } else if (state->dev_ver == 0x20) { /*cut 2.0 :release TS reset after demod lock and TrackingOptimization*/
3032                         reg = STV090x_READ_DEMOD(state, TSCFGH);
3033                         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
3034                         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3035                                 goto err;
3036                         msleep(3);
3037                         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 1); /* merger reset */
3038                         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3039                                 goto err;
3040
3041                         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
3042                         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3043                                 goto err;
3044                 }
3045
3046                 if (stv090x_get_lock(state, timeout_fec, timeout_fec)) {
3047                         lock = 1;
3048                         if (state->delsys == STV090x_DVBS2) {
3049                                 stv090x_set_s2rolloff(state);
3050                                 if (STV090x_WRITE_DEMOD(state, PDELCTRL2, 0x40) < 0)
3051                                         goto err;
3052                                 if (STV090x_WRITE_DEMOD(state, PDELCTRL2, 0x00) < 0) /* RESET counter */
3053                                         goto err;
3054                                 if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x67) < 0) /* PER */
3055                                         goto err;
3056                         } else {
3057                                 if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x75) < 0)
3058                                         goto err;
3059                         }
3060                         if (STV090x_WRITE_DEMOD(state, FBERCPT4, 0x00) < 0)
3061                                 goto err;
3062                         if (STV090x_WRITE_DEMOD(state, ERRCTRL2, 0xc1) < 0)
3063                                 goto err;
3064                 } else {
3065                         lock = 0;
3066                         signal_state = STV090x_NODATA;
3067                         no_signal = stv090x_chk_signal(state);
3068                 }
3069         }
3070         if ((signal_state == STV090x_NODATA) && (!no_signal)) {
3071                 if (state->dev_ver <= 0x11) {
3072                         reg = STV090x_READ_DEMOD(state, DMDSTATE);
3073                         if (((STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD)) == STV090x_DVBS2) && (state->inversion == INVERSION_AUTO))
3074                                 signal_state = stv090x_acq_fixs1(state);
3075                 }
3076         }
3077         return signal_state;
3078
3079 err:
3080         dprintk(FE_ERROR, 1, "I/O error");
3081         return -1;
3082 }
3083
3084 static enum dvbfe_search stv090x_search(struct dvb_frontend *fe, struct dvb_frontend_parameters *p)
3085 {
3086         struct stv090x_state *state = fe->demodulator_priv;
3087         struct dtv_frontend_properties *props = &fe->dtv_property_cache;
3088
3089         state->delsys = props->delivery_system;
3090         state->frequency = p->frequency;
3091         state->srate = p->u.qpsk.symbol_rate;
3092
3093         if (!stv090x_algo(state)) {
3094                 dprintk(FE_DEBUG, 1, "Search success!");
3095                 return DVBFE_ALGO_SEARCH_SUCCESS;
3096         } else {
3097                 dprintk(FE_DEBUG, 1, "Search failed!");
3098                 return DVBFE_ALGO_SEARCH_FAILED;
3099         }
3100
3101         return DVBFE_ALGO_SEARCH_ERROR;
3102 }
3103
3104 /* FIXME! */
3105 static int stv090x_read_status(struct dvb_frontend *fe, enum fe_status *status)
3106 {
3107         struct stv090x_state *state = fe->demodulator_priv;
3108         u32 reg;
3109         u8 search_state;
3110         int locked = 0;
3111
3112         reg = STV090x_READ_DEMOD(state, DMDSTATE);
3113         search_state = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
3114
3115         switch (search_state) {
3116         case 0: /* searching */
3117         case 1: /* first PLH detected */
3118         default:
3119                 dprintk(FE_DEBUG, 1, "Status: Unlocked (Searching ..)");
3120                 locked = 0;
3121                 break;
3122
3123         case 2: /* DVB-S2 mode */
3124                 dprintk(FE_DEBUG, 1, "Delivery system: DVB-S2");
3125                 reg = STV090x_READ_DEMOD(state, DSTATUS);
3126                 if (STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD)) {
3127                         reg = STV090x_READ_DEMOD(state, TSSTATUS);
3128                         if (STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD)) {
3129                                 locked = 1;
3130                                 *status = FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
3131                         }
3132                 }
3133                 break;
3134
3135         case 3: /* DVB-S1/legacy mode */
3136                 dprintk(FE_DEBUG, 1, "Delivery system: DVB-S");
3137                 reg = STV090x_READ_DEMOD(state, DSTATUS);
3138                 if (STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD)) {
3139                         reg = STV090x_READ_DEMOD(state, VSTATUSVIT);
3140                         if (STV090x_GETFIELD_Px(reg, LOCKEDVIT_FIELD)) {
3141                                 reg = STV090x_READ_DEMOD(state, TSSTATUS);
3142                                 if (STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD)) {
3143                                         locked = 1;
3144                                         *status = FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
3145                                 }
3146                         }
3147                 }
3148                 break;
3149         }
3150
3151         return locked;
3152 }
3153
3154 static int stv090x_read_per(struct dvb_frontend *fe, u32 *per)
3155 {
3156         struct stv090x_state *state = fe->demodulator_priv;
3157
3158         s32 count_4, count_3, count_2, count_1, count_0, count;
3159         u32 reg, h, m, l;
3160         enum fe_status status;
3161
3162         if (!stv090x_read_status(fe, &status)) {
3163                 *per = 1 << 23; /* Max PER */
3164         } else {
3165                 /* Counter 2 */
3166                 reg = STV090x_READ_DEMOD(state, ERRCNT22);
3167                 h = STV090x_GETFIELD_Px(reg, ERR_CNT2_FIELD);
3168
3169                 reg = STV090x_READ_DEMOD(state, ERRCNT21);
3170                 m = STV090x_GETFIELD_Px(reg, ERR_CNT21_FIELD);
3171
3172                 reg = STV090x_READ_DEMOD(state, ERRCNT20);
3173                 l = STV090x_GETFIELD_Px(reg, ERR_CNT20_FIELD);
3174
3175                 *per = ((h << 16) | (m << 8) | l);
3176
3177                 count_4 = STV090x_READ_DEMOD(state, FBERCPT4);
3178                 count_3 = STV090x_READ_DEMOD(state, FBERCPT3);
3179                 count_2 = STV090x_READ_DEMOD(state, FBERCPT2);
3180                 count_1 = STV090x_READ_DEMOD(state, FBERCPT1);
3181                 count_0 = STV090x_READ_DEMOD(state, FBERCPT0);
3182
3183                 if ((!count_4) && (!count_3)) {
3184                         count  = (count_2 & 0xff) << 16;
3185                         count |= (count_1 & 0xff) <<  8;
3186                         count |=  count_0 & 0xff;
3187                 } else {
3188                         count = 1 << 24;
3189                 }
3190                 if (count == 0)
3191                         *per = 1;
3192         }
3193         if (STV090x_WRITE_DEMOD(state, FBERCPT4, 0) < 0)
3194                 goto err;
3195         if (STV090x_WRITE_DEMOD(state, ERRCTRL2, 0xc1) < 0)
3196                 goto err;
3197
3198         return 0;
3199 err:
3200         dprintk(FE_ERROR, 1, "I/O error");
3201         return -1;
3202 }
3203
3204 static int stv090x_table_lookup(const struct stv090x_tab *tab, int max, int val)
3205 {
3206         int res = 0;
3207         int min = 0, med;
3208
3209         if (val < tab[min].read)
3210                 res = tab[min].real;
3211         else if (val >= tab[max].read)
3212                 res = tab[max].real;
3213         else {
3214                 while ((max - min) > 1) {
3215                         med = (max + min) / 2;
3216                         if (val >= tab[min].read && val < tab[med].read)
3217                                 max = med;
3218                         else
3219                                 min = med;
3220                 }
3221                 res = ((val - tab[min].read) *
3222                        (tab[max].real - tab[min].real) /
3223                        (tab[max].read - tab[min].read)) +
3224                         tab[min].real;
3225         }
3226
3227         return res;
3228 }
3229
3230 static int stv090x_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
3231 {
3232         struct stv090x_state *state = fe->demodulator_priv;
3233         u32 reg;
3234         s32 agc;
3235
3236         reg = STV090x_READ_DEMOD(state, AGCIQIN1);
3237         agc = STV090x_GETFIELD_Px(reg, AGCIQ_VALUE_FIELD);
3238
3239         *strength = stv090x_table_lookup(stv090x_rf_tab, ARRAY_SIZE(stv090x_rf_tab) - 1, agc);
3240         if (agc > stv090x_rf_tab[0].read)
3241                 *strength = 5;
3242         else if (agc < stv090x_rf_tab[ARRAY_SIZE(stv090x_rf_tab) - 1].read)
3243                 *strength = -100;
3244
3245         return 0;
3246 }
3247
3248 static int stv090x_read_cnr(struct dvb_frontend *fe, u16 *cnr)
3249 {
3250         struct stv090x_state *state = fe->demodulator_priv;
3251         u32 reg_0, reg_1, reg, i;
3252         s32 val_0, val_1, val = 0;
3253         u8 lock_f;
3254
3255         switch (state->delsys) {
3256         case STV090x_DVBS2:
3257                 reg = STV090x_READ_DEMOD(state, DSTATUS);
3258                 lock_f = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
3259                 if (lock_f) {
3260                         msleep(5);
3261                         for (i = 0; i < 16; i++) {
3262                                 reg_1 = STV090x_READ_DEMOD(state, NNOSPLHT1);
3263                                 val_1 = STV090x_GETFIELD_Px(reg_1, NOSPLHT_NORMED_FIELD);
3264                                 reg_0 = STV090x_READ_DEMOD(state, NNOSPLHT0);
3265                                 val_0 = STV090x_GETFIELD_Px(reg_1, NOSPLHT_NORMED_FIELD);
3266                                 val  += MAKEWORD16(val_1, val_0);
3267                                 msleep(1);
3268                         }
3269                         val /= 16;
3270                         *cnr = stv090x_table_lookup(stv090x_s2cn_tab, ARRAY_SIZE(stv090x_s2cn_tab) - 1, val);
3271                         if (val < stv090x_s2cn_tab[ARRAY_SIZE(stv090x_s2cn_tab) - 1].read)
3272                                 *cnr = 1000;
3273                 }
3274                 break;
3275
3276         case STV090x_DVBS1:
3277         case STV090x_DSS:
3278                 reg = STV090x_READ_DEMOD(state, DSTATUS);
3279                 lock_f = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
3280                 if (lock_f) {
3281                         msleep(5);
3282                         for (i = 0; i < 16; i++) {
3283                                 reg_1 = STV090x_READ_DEMOD(state, NOSDATAT1);
3284                                 val_1 = STV090x_GETFIELD_Px(reg_1, NOSDATAT_UNNORMED_FIELD);
3285                                 reg_0 = STV090x_READ_DEMOD(state, NOSDATAT0);
3286                                 val_0 = STV090x_GETFIELD_Px(reg_1, NOSDATAT_UNNORMED_FIELD);
3287                                 val  += MAKEWORD16(val_1, val_0);
3288                                 msleep(1);
3289                         }
3290                         val /= 16;
3291                         *cnr = stv090x_table_lookup(stv090x_s1cn_tab, ARRAY_SIZE(stv090x_s1cn_tab) - 1, val);
3292                         if (val < stv090x_s2cn_tab[ARRAY_SIZE(stv090x_s1cn_tab) - 1].read)
3293                                 *cnr = 1000;
3294                 }
3295                 break;
3296         default:
3297                 break;
3298         }
3299
3300         return 0;
3301 }
3302
3303 static int stv090x_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
3304 {
3305         struct stv090x_state *state = fe->demodulator_priv;
3306         u32 reg;
3307
3308         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3309         switch (tone) {
3310         case SEC_TONE_ON:
3311                 STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, 0);
3312                 STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3313                 if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3314                         goto err;
3315                 STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3316                 if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3317                         goto err;
3318                 break;
3319
3320         case SEC_TONE_OFF:
3321                 STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, 0);
3322                 STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3323                 if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3324                         goto err;
3325                 break;
3326         default:
3327                 return -EINVAL;
3328         }
3329
3330         return 0;
3331 err:
3332         dprintk(FE_ERROR, 1, "I/O error");
3333         return -1;
3334 }
3335
3336
3337 static enum dvbfe_algo stv090x_frontend_algo(struct dvb_frontend *fe)
3338 {
3339         return DVBFE_ALGO_CUSTOM;
3340 }
3341
3342 static int stv090x_send_diseqc_msg(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd)
3343 {
3344         struct stv090x_state *state = fe->demodulator_priv;
3345         u32 reg, idle = 0, fifo_full = 1;
3346         int i;
3347
3348         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3349         STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 1);
3350         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3351                 goto err;
3352
3353         for (i = 0; i < cmd->msg_len; i++) {
3354
3355                 while (fifo_full) {
3356                         reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3357                         fifo_full = STV090x_GETFIELD_Px(reg, FIFO_FULL_FIELD);
3358                 }
3359
3360                 if (STV090x_WRITE_DEMOD(state, DISTXDATA, cmd->msg[i]) < 0)
3361                         goto err;
3362                 i++;
3363         }
3364         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3365         STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 0);
3366         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3367                 goto err;
3368
3369         i = 0;
3370
3371         while ((!idle) && (i < 10)) {
3372                 reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3373                 idle = STV090x_GETFIELD_Px(reg, TX_IDLE_FIELD);
3374                 msleep(10);
3375                 i++;
3376         }
3377
3378         return 0;
3379 err:
3380         dprintk(FE_ERROR, 1, "I/O error");
3381         return -1;
3382 }
3383
3384 static int stv090x_recv_slave_reply(struct dvb_frontend *fe, struct dvb_diseqc_slave_reply *reply)
3385 {
3386         struct stv090x_state *state = fe->demodulator_priv;
3387         u32 reg = 0, i = 0, rx_end = 0;
3388
3389         while ((rx_end != 1) && (i < 10)) {
3390                 msleep(10);
3391                 i++;
3392                 reg = STV090x_READ_DEMOD(state, DISRX_ST0);
3393                 rx_end = STV090x_GETFIELD_Px(reg, RX_END_FIELD);
3394         }
3395
3396         if (rx_end) {
3397                 reply->msg_len = STV090x_GETFIELD_Px(reg, FIFO_BYTENBR_FIELD);
3398                 for (i = 0; i < reply->msg_len; i++)
3399                         reply->msg[i] = STV090x_READ_DEMOD(state, DISRXDATA);
3400         }
3401
3402         return 0;
3403 }
3404
3405 static int stv090x_sleep(struct dvb_frontend *fe)
3406 {
3407         struct stv090x_state *state = fe->demodulator_priv;
3408         u32 reg;
3409
3410         dprintk(FE_DEBUG, 1, "Set %s to sleep",
3411                 state->device == STV0900 ? "STV0900" : "STV0903");
3412
3413         reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
3414         STV090x_SETFIELD(reg, STANDBY_FIELD, 0x01);
3415         if (stv090x_write_reg(state, STV090x_SYNTCTRL, reg) < 0)
3416                 goto err;
3417
3418         return 0;
3419 err:
3420         dprintk(FE_ERROR, 1, "I/O error");
3421         return -1;
3422 }
3423
3424 static int stv090x_wakeup(struct dvb_frontend *fe)
3425 {
3426         struct stv090x_state *state = fe->demodulator_priv;
3427         u32 reg;
3428
3429         dprintk(FE_DEBUG, 1, "Wake %s from standby",
3430                 state->device == STV0900 ? "STV0900" : "STV0903");
3431
3432         reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
3433         STV090x_SETFIELD(reg, STANDBY_FIELD, 0x00);
3434         if (stv090x_write_reg(state, STV090x_SYNTCTRL, reg) < 0)
3435                 goto err;
3436
3437         return 0;
3438 err:
3439         dprintk(FE_ERROR, 1, "I/O error");
3440         return -1;
3441 }
3442
3443 static void stv090x_release(struct dvb_frontend *fe)
3444 {
3445         struct stv090x_state *state = fe->demodulator_priv;
3446
3447         kfree(state);
3448 }
3449
3450 static int stv090x_ldpc_mode(struct stv090x_state *state, enum stv090x_mode ldpc_mode)
3451 {
3452         u32 reg;
3453
3454         switch (ldpc_mode) {
3455         case STV090x_DUAL:
3456         default:
3457                 reg = stv090x_read_reg(state, STV090x_GENCFG);
3458                 if ((state->demod_mode != STV090x_DUAL) || (STV090x_GETFIELD(reg, DDEMOD_FIELD) != 1)) {
3459                         /* follow LDPC default state */
3460                         if (stv090x_write_reg(state, STV090x_GENCFG, reg) < 0)
3461                                 goto err;
3462                         state->demod_mode = STV090x_DUAL;
3463                         reg = stv090x_read_reg(state, STV090x_TSTRES0);
3464                         STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x1);
3465                         if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
3466                                 goto err;
3467                         STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x0);
3468                         if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
3469                                 goto err;
3470                 }
3471                 break;
3472
3473         case STV090x_SINGLE:
3474                 if (state->demod == STV090x_DEMODULATOR_1) {
3475                         if (stv090x_write_reg(state, STV090x_GENCFG, 0x06) < 0) /* path 2 */
3476                                 goto err;
3477                 } else {
3478                         if (stv090x_write_reg(state, STV090x_GENCFG, 0x04) < 0) /* path 1 */
3479                                 goto err;
3480                 }
3481
3482                 reg = stv090x_read_reg(state, STV090x_TSTRES0);
3483                 STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x1);
3484                 if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
3485                         goto err;
3486                 STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x0);
3487                 if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
3488                         goto err;
3489
3490                 reg = STV090x_READ_DEMOD(state, PDELCTRL1);
3491                 STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x01);
3492                 if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
3493                         goto err;
3494                 STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x00);
3495                 if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
3496                         goto err;
3497                 break;
3498         }
3499
3500         return 0;
3501 err:
3502         dprintk(FE_ERROR, 1, "I/O error");
3503         return -1;
3504 }
3505
3506 /* return (Hz), clk in Hz*/
3507 static u32 stv090x_get_mclk(struct stv090x_state *state)
3508 {
3509         const struct stv090x_config *config = state->config;
3510         u32 div, reg;
3511         u8 ratio;
3512
3513         div = stv090x_read_reg(state, STV090x_NCOARSE);
3514         reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
3515         ratio = STV090x_GETFIELD(reg, SELX1RATIO_FIELD) ? 4 : 6;
3516
3517         return (div + 1) * config->xtal / ratio; /* kHz */
3518 }
3519
3520 static int stv090x_set_mclk(struct stv090x_state *state, u32 mclk, u32 clk)
3521 {
3522         const struct stv090x_config *config = state->config;
3523         u32 reg, div, clk_sel;
3524
3525         reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
3526         clk_sel = ((STV090x_GETFIELD(reg, SELX1RATIO_FIELD) == 1) ? 4 : 6);
3527
3528         div = ((clk_sel * mclk) / config->xtal) - 1;
3529
3530         reg = stv090x_read_reg(state, STV090x_NCOARSE);
3531         STV090x_SETFIELD(reg, M_DIV_FIELD, div);
3532         if (stv090x_write_reg(state, STV090x_NCOARSE, reg) < 0)
3533                 goto err;
3534
3535         state->mclk = stv090x_get_mclk(state);
3536
3537         return 0;
3538 err:
3539         dprintk(FE_ERROR, 1, "I/O error");
3540         return -1;
3541 }
3542
3543 static int stv090x_set_tspath(struct stv090x_state *state)
3544 {
3545         u32 reg;
3546
3547         if (state->dev_ver >= 0x20) {
3548                 switch (state->config->ts1_mode) {
3549                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
3550                 case STV090x_TSMODE_DVBCI:
3551                         switch (state->config->ts2_mode) {
3552                         case STV090x_TSMODE_SERIAL_PUNCTURED:
3553                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
3554                         default:
3555                                 stv090x_write_reg(state, STV090x_TSGENERAL, 0x00);
3556                                 break;
3557
3558                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
3559                         case STV090x_TSMODE_DVBCI:
3560                                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x06) < 0) /* Mux'd stream mode */
3561                                         goto err;
3562                                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
3563                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
3564                                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
3565                                         goto err;
3566                                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGM);
3567                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
3568                                 if (stv090x_write_reg(state, STV090x_P2_TSCFGM, reg) < 0)
3569                                         goto err;
3570                                 if (stv090x_write_reg(state, STV090x_P1_TSSPEED, 0x14) < 0)
3571                                         goto err;
3572                                 if (stv090x_write_reg(state, STV090x_P2_TSSPEED, 0x28) < 0)
3573                                         goto err;
3574                                 break;
3575                         }
3576                         break;
3577
3578                 case STV090x_TSMODE_SERIAL_PUNCTURED:
3579                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
3580                 default:
3581                         switch (state->config->ts2_mode) {
3582                         case STV090x_TSMODE_SERIAL_PUNCTURED:
3583                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
3584                         default:
3585                                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c) < 0)
3586                                         goto err;
3587                                 break;
3588
3589                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
3590                         case STV090x_TSMODE_DVBCI:
3591                                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0a) < 0)
3592                                         goto err;
3593                                 break;
3594                         }
3595                         break;
3596                 }
3597         } else {
3598                 switch (state->config->ts1_mode) {
3599                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
3600                 case STV090x_TSMODE_DVBCI:
3601                         switch (state->config->ts2_mode) {
3602                         case STV090x_TSMODE_SERIAL_PUNCTURED:
3603                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
3604                         default:
3605                                 break;
3606
3607                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
3608                         case STV090x_TSMODE_DVBCI:
3609                                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
3610                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
3611                                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
3612                                         goto err;
3613                                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
3614                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 0);
3615                                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
3616                                         goto err;
3617                                 if (stv090x_write_reg(state, STV090x_P1_TSSPEED, 0x14) < 0)
3618                                         goto err;
3619                                 if (stv090x_write_reg(state, STV090x_P2_TSSPEED, 0x28) < 0)
3620                                         goto err;
3621                                 break;
3622                         }
3623                         break;
3624
3625                 case STV090x_TSMODE_SERIAL_PUNCTURED:
3626                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
3627                 default:
3628                         switch (state->config->ts2_mode) {
3629                         case STV090x_TSMODE_SERIAL_PUNCTURED:
3630                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
3631                         default:
3632                                 break;
3633
3634                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
3635                         case STV090x_TSMODE_DVBCI:
3636                                 break;
3637                         }
3638                         break;
3639                 }
3640         }
3641
3642         switch (state->config->ts1_mode) {
3643         case STV090x_TSMODE_PARALLEL_PUNCTURED:
3644                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
3645                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
3646                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
3647                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
3648                         goto err;
3649                 break;
3650
3651         case STV090x_TSMODE_DVBCI:
3652                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
3653                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
3654                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
3655                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
3656                         goto err;
3657                 break;
3658
3659         case STV090x_TSMODE_SERIAL_PUNCTURED:
3660                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
3661                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
3662                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
3663                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
3664                         goto err;
3665                 break;
3666
3667         case STV090x_TSMODE_SERIAL_CONTINUOUS:
3668                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
3669                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
3670                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
3671                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
3672                         goto err;
3673                 break;
3674
3675         default:
3676                 break;
3677         }
3678
3679         switch (state->config->ts2_mode) {
3680         case STV090x_TSMODE_PARALLEL_PUNCTURED:
3681                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
3682                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
3683                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
3684                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
3685                         goto err;
3686                 break;
3687
3688         case STV090x_TSMODE_DVBCI:
3689                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
3690                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
3691                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
3692                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
3693                         goto err;
3694                 break;
3695
3696         case STV090x_TSMODE_SERIAL_PUNCTURED:
3697                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
3698                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
3699                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
3700                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
3701                         goto err;
3702                 break;
3703
3704         case STV090x_TSMODE_SERIAL_CONTINUOUS:
3705                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
3706                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
3707                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
3708                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
3709                         goto err;
3710                 break;
3711
3712         default:
3713                 break;
3714         }
3715         reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
3716         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
3717         if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
3718                 goto err;
3719         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
3720         if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
3721                 goto err;
3722
3723         reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
3724         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
3725         if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
3726                 goto err;
3727         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
3728         if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
3729                 goto err;
3730
3731         return 0;
3732 err:
3733         dprintk(FE_ERROR, 1, "I/O error");
3734         return -1;
3735 }
3736
3737 static int stv090x_init(struct dvb_frontend *fe)
3738 {
3739         struct stv090x_state *state = fe->demodulator_priv;
3740         const struct stv090x_config *config = state->config;
3741         u32 reg;
3742
3743         stv090x_ldpc_mode(state, state->demod_mode);
3744
3745         reg = STV090x_READ_DEMOD(state, TNRCFG2);
3746         STV090x_SETFIELD_Px(reg, TUN_IQSWAP_FIELD, state->inversion);
3747         if (STV090x_WRITE_DEMOD(state, TNRCFG2, reg) < 0)
3748                 goto err;
3749         reg = STV090x_READ_DEMOD(state, DEMOD);
3750         STV090x_SETFIELD_Px(reg, ROLLOFF_CONTROL_FIELD, state->rolloff);
3751         if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3752                 goto err;
3753
3754         stv090x_i2c_gate_ctrl(fe, 1);
3755
3756         if (config->tuner_init)
3757                 config->tuner_init(fe);
3758
3759         stv090x_i2c_gate_ctrl(fe, 0);
3760
3761         stv090x_set_tspath(state);
3762
3763         return 0;
3764 err:
3765         dprintk(FE_ERROR, 1, "I/O error");
3766         return -1;
3767 }
3768
3769 static int stv090x_setup(struct dvb_frontend *fe)
3770 {
3771         struct stv090x_state *state = fe->demodulator_priv;
3772         const struct stv090x_config *config = state->config;
3773         const struct stv090x_reg *stv090x_initval = NULL;
3774         const struct stv090x_reg *stv090x_cut20_val = NULL;
3775         unsigned long t1_size = 0, t2_size = 0;
3776
3777         int i;
3778
3779         if (state->device == STV0900) {
3780                 dprintk(FE_DEBUG, 1, "Initializing STV0900");
3781                 stv090x_initval = stv0900_initval;
3782                 t1_size = ARRAY_SIZE(stv0900_initval);
3783                 stv090x_cut20_val = stv0900_cut20_val;
3784                 t2_size = ARRAY_SIZE(stv0900_cut20_val);
3785         } else if (state->device == STV0903) {
3786                 dprintk(FE_DEBUG, 1, "Initializing STV0903");
3787                 stv090x_initval = stv0903_initval;
3788                 t1_size = ARRAY_SIZE(stv0903_initval);
3789                 stv090x_cut20_val = stv0903_cut20_val;
3790                 t2_size = ARRAY_SIZE(stv0903_cut20_val);
3791         }
3792
3793         /* STV090x init */
3794         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5c) < 0) /* Stop Demod */
3795                 goto err;
3796
3797         msleep(5);
3798
3799         if (STV090x_WRITE_DEMOD(state, TNRCFG, 0x6c) < 0) /* check register ! (No Tuner Mode) */
3800                 goto err;
3801
3802         if (STV090x_WRITE_DEMOD(state, I2CRPT, 0x00) < 0) /* repeater OFF */
3803                 goto err;
3804
3805         if (stv090x_write_reg(state, STV090x_NCOARSE, 0x13) < 0) /* set PLL divider */
3806                 goto err;
3807         msleep(5);
3808         if (stv090x_write_reg(state, STV090x_I2CCFG, 0x08) < 0) /* 1/41 oversampling */
3809                 goto err;
3810         if (stv090x_write_reg(state, STV090x_SYNTCTRL, 0x20 | config->clk_mode) < 0) /* enable PLL */
3811                 goto err;
3812         msleep(5);
3813
3814         /* write initval */
3815         for (i = 0; i < t1_size; i++) {
3816                 dprintk(FE_DEBUG, 1, "Setting up initial values");
3817                 if (stv090x_write_reg(state, stv090x_initval[i].addr, stv090x_initval[i].data) < 0)
3818                         goto err;
3819         }
3820
3821         if (state->dev_ver >= 0x20) {
3822                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c) < 0)
3823                         goto err;
3824
3825                 /* write cut20_val*/
3826                 dprintk(FE_DEBUG, 1, "Setting up Cut 2.0 initial values");
3827                 for (i = 0; i < t2_size; i++) {
3828                         if (stv090x_write_reg(state, stv090x_cut20_val[i].addr, stv090x_cut20_val[i].data) < 0)
3829                                 goto err;
3830                 }
3831         }
3832
3833         if (stv090x_write_reg(state, STV090x_TSTRES0, 0x80) < 0)
3834                 goto err;
3835         if (stv090x_write_reg(state, STV090x_TSTRES0, 0x00) < 0)
3836                 goto err;
3837
3838         stv090x_set_mclk(state, 135000000, config->xtal); /* 135 Mhz */
3839         msleep(5);
3840         if (stv090x_write_reg(state, STV090x_SYNTCTRL, 0x20 | config->clk_mode) < 0)
3841                 goto err;
3842         stv090x_get_mclk(state);
3843
3844         return 0;
3845 err:
3846         dprintk(FE_ERROR, 1, "I/O error");
3847         return -1;
3848 }
3849
3850 static struct dvb_frontend_ops stv090x_ops = {
3851
3852         .info = {
3853                 .name                   = "STV090x Multistandard",
3854         },
3855
3856         .release                        = stv090x_release,
3857         .init                           = stv090x_init,
3858
3859         .sleep                          = stv090x_sleep,
3860         .get_frontend_algo              = stv090x_frontend_algo,
3861
3862         .i2c_gate_ctrl                  = stv090x_i2c_gate_ctrl,
3863
3864         .diseqc_send_master_cmd         = stv090x_send_diseqc_msg,
3865         .diseqc_recv_slave_reply        = stv090x_recv_slave_reply,
3866         .set_tone                       = stv090x_set_tone,
3867
3868         .search                         = stv090x_search,
3869         .read_status                    = stv090x_read_status,
3870         .read_ber                       = stv090x_read_per,
3871         .read_signal_strength           = stv090x_read_signal_strength,
3872         .read_snr                       = stv090x_read_cnr
3873 };
3874
3875
3876 struct dvb_frontend *stv090x_attach(const struct stv090x_config *config,
3877                                     struct i2c_adapter *i2c,
3878                                     enum stv090x_demodulator demod)
3879 {
3880         struct stv090x_state *state = NULL;
3881
3882         state = kzalloc(sizeof (struct stv090x_state), GFP_KERNEL);
3883         if (state == NULL)
3884                 goto error;
3885
3886         state->verbose                          = &verbose;
3887         state->config                           = config;
3888         state->i2c                              = i2c;
3889         state->frontend.ops                     = stv090x_ops;
3890         state->frontend.demodulator_priv        = state;
3891         state->demod_mode                       = config->demod_mode; /* Single or Dual mode */
3892         state->device                           = config->device;
3893         state->rolloff                          = 35; /* default */
3894
3895         if (state->demod == STV090x_DEMODULATOR_0)
3896                 mutex_init(&demod_lock);
3897
3898         if (stv090x_sleep(&state->frontend) < 0) {
3899                 dprintk(FE_ERROR, 1, "Error putting device to sleep");
3900                 goto error;
3901         }
3902
3903         if (stv090x_setup(&state->frontend) < 0) {
3904                 dprintk(FE_ERROR, 1, "Error setting up device");
3905                 goto error;
3906         }
3907         if (stv090x_wakeup(&state->frontend) < 0) {
3908                 dprintk(FE_ERROR, 1, "Error waking device");
3909                 goto error;
3910         }
3911         state->dev_ver = stv090x_read_reg(state, STV090x_MID);
3912
3913         dprintk(FE_ERROR, 1, "Attaching %s demodulator(%d) Cut=0x%02x\n",
3914                state->device == STV0900 ? "STV0900" : "STV0903",
3915                demod,
3916                state->dev_ver);
3917
3918         return &state->frontend;
3919
3920 error:
3921         kfree(state);
3922         return NULL;
3923 }
3924 EXPORT_SYMBOL(stv090x_attach);
3925 MODULE_PARM_DESC(verbose, "Set Verbosity level");
3926 MODULE_AUTHOR("Manu Abraham");
3927 MODULE_DESCRIPTION("STV090x Multi-Std Broadcast frontend");
3928 MODULE_LICENSE("GPL");