diff options
Diffstat (limited to 'drivers/media/dvb/frontends/stv0900_sw.c')
| -rw-r--r-- | drivers/media/dvb/frontends/stv0900_sw.c | 2847 |
1 files changed, 2847 insertions, 0 deletions
diff --git a/drivers/media/dvb/frontends/stv0900_sw.c b/drivers/media/dvb/frontends/stv0900_sw.c new file mode 100644 index 0000000..a5a3153 --- /dev/null +++ b/drivers/media/dvb/frontends/stv0900_sw.c @@ -0,0 +1,2847 @@ +/* + * stv0900_sw.c + * + * Driver for ST STV0900 satellite demodulator IC. + * + * Copyright (C) ST Microelectronics. + * Copyright (C) 2009 NetUP Inc. + * Copyright (C) 2009 Igor M. Liplianin <liplianin@netup.ru> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include "stv0900.h" +#include "stv0900_reg.h" +#include "stv0900_priv.h" + +int stv0900_check_signal_presence(struct stv0900_internal *i_params, + enum fe_stv0900_demod_num demod) +{ + s32 carr_offset, + agc2_integr, + max_carrier; + + int no_signal; + + switch (demod) { + case STV0900_DEMOD_1: + default: + carr_offset = (stv0900_read_reg(i_params, R0900_P1_CFR2) << 8) + | stv0900_read_reg(i_params, + R0900_P1_CFR1); + carr_offset = ge2comp(carr_offset, 16); + agc2_integr = (stv0900_read_reg(i_params, R0900_P1_AGC2I1) << 8) + | stv0900_read_reg(i_params, + R0900_P1_AGC2I0); + max_carrier = i_params->dmd1_srch_range / 1000; + break; + case STV0900_DEMOD_2: + carr_offset = (stv0900_read_reg(i_params, R0900_P2_CFR2) << 8) + | stv0900_read_reg(i_params, + R0900_P2_CFR1); + carr_offset = ge2comp(carr_offset, 16); + agc2_integr = (stv0900_read_reg(i_params, R0900_P2_AGC2I1) << 8) + | stv0900_read_reg(i_params, + R0900_P2_AGC2I0); + max_carrier = i_params->dmd2_srch_range / 1000; + break; + } + + max_carrier += (max_carrier / 10); + max_carrier = 65536 * (max_carrier / 2); + max_carrier /= i_params->mclk / 1000; + if (max_carrier > 0x4000) + max_carrier = 0x4000; + + if ((agc2_integr > 0x2000) + || (carr_offset > + 2*max_carrier) + || (carr_offset < -2*max_carrier)) + no_signal = TRUE; + else + no_signal = FALSE; + + return no_signal; +} + +static void stv0900_get_sw_loop_params(struct stv0900_internal *i_params, + s32 *frequency_inc, s32 *sw_timeout, + s32 *steps, + enum fe_stv0900_demod_num demod) +{ + s32 timeout, freq_inc, max_steps, srate, max_carrier; + + enum fe_stv0900_search_standard standard; + + switch (demod) { + case STV0900_DEMOD_1: + default: + srate = i_params->dmd1_symbol_rate; + max_carrier = i_params->dmd1_srch_range / 1000; + max_carrier += max_carrier / 10; + standard = i_params->dmd1_srch_standard; + break; + case STV0900_DEMOD_2: + srate = i_params->dmd2_symbol_rate; + max_carrier = i_params->dmd2_srch_range / 1000; + max_carrier += max_carrier / 10; + standard = i_params->dmd2_srch_stndrd; + break; + } + + max_carrier = 65536 * (max_carrier / 2); + max_carrier /= i_params->mclk / 1000; + + if (max_carrier > 0x4000) + max_carrier = 0x4000; + + freq_inc = srate; + freq_inc /= i_params->mclk >> 10; + freq_inc = freq_inc << 6; + + switch (standard) { + case STV0900_SEARCH_DVBS1: + case STV0900_SEARCH_DSS: + freq_inc *= 3; + timeout = 20; + break; + case STV0900_SEARCH_DVBS2: + freq_inc *= 4; + timeout = 25; + break; + case STV0900_AUTO_SEARCH: + default: + freq_inc *= 3; + timeout = 25; + break; + } + + freq_inc /= 100; + + if ((freq_inc > max_carrier) || (freq_inc < 0)) + freq_inc = max_carrier / 2; + + timeout *= 27500; + + if (srate > 0) + timeout /= srate / 1000; + + if ((timeout > 100) || (timeout < 0)) + timeout = 100; + + max_steps = (max_carrier / freq_inc) + 1; + + if ((max_steps > 100) || (max_steps < 0)) { + max_steps = 100; + freq_inc = max_carrier / max_steps; + } + + *frequency_inc = freq_inc; + *sw_timeout = timeout; + *steps = max_steps; + +} + +static int stv0900_search_carr_sw_loop(struct stv0900_internal *i_params, + s32 FreqIncr, s32 Timeout, int zigzag, + s32 MaxStep, enum fe_stv0900_demod_num demod) +{ + int no_signal, + lock = FALSE; + s32 stepCpt, + freqOffset, + max_carrier; + + switch (demod) { + case STV0900_DEMOD_1: + default: + max_carrier = i_params->dmd1_srch_range / 1000; + max_carrier += (max_carrier / 10); + break; + case STV0900_DEMOD_2: + max_carrier = i_params->dmd2_srch_range / 1000; + max_carrier += (max_carrier / 10); + break; + } + + max_carrier = 65536 * (max_carrier / 2); + max_carrier /= i_params->mclk / 1000; + + if (max_carrier > 0x4000) + max_carrier = 0x4000; + + if (zigzag == TRUE) + freqOffset = 0; + else + freqOffset = -max_carrier + FreqIncr; + + stepCpt = 0; + + do { + switch (demod) { + case STV0900_DEMOD_1: + default: + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x1C); + stv0900_write_reg(i_params, R0900_P1_CFRINIT1, + (freqOffset / 256) & 0xFF); + stv0900_write_reg(i_params, R0900_P1_CFRINIT0, + freqOffset & 0xFF); + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x18); + stv0900_write_bits(i_params, F0900_P1_ALGOSWRST, 1); + + if (i_params->chip_id == 0x12) { + stv0900_write_bits(i_params, + F0900_P1_RST_HWARE, 1); + stv0900_write_bits(i_params, + F0900_P1_RST_HWARE, 0); + } + break; + case STV0900_DEMOD_2: + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x1C); + stv0900_write_reg(i_params, R0900_P2_CFRINIT1, + (freqOffset / 256) & 0xFF); + stv0900_write_reg(i_params, R0900_P2_CFRINIT0, + freqOffset & 0xFF); + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x18); + stv0900_write_bits(i_params, F0900_P2_ALGOSWRST, 1); + + if (i_params->chip_id == 0x12) { + stv0900_write_bits(i_params, + F0900_P2_RST_HWARE, 1); + stv0900_write_bits(i_params, + F0900_P2_RST_HWARE, 0); + } + break; + } + + if (zigzag == TRUE) { + if (freqOffset >= 0) + freqOffset = -freqOffset - 2 * FreqIncr; + else + freqOffset = -freqOffset; + } else + freqOffset += + 2 * FreqIncr; + + stepCpt++; + lock = stv0900_get_demod_lock(i_params, demod, Timeout); + no_signal = stv0900_check_signal_presence(i_params, demod); + + } while ((lock == FALSE) + && (no_signal == FALSE) + && ((freqOffset - FreqIncr) < max_carrier) + && ((freqOffset + FreqIncr) > -max_carrier) + && (stepCpt < MaxStep)); + + switch (demod) { + case STV0900_DEMOD_1: + default: + stv0900_write_bits(i_params, F0900_P1_ALGOSWRST, 0); + break; + case STV0900_DEMOD_2: + stv0900_write_bits(i_params, F0900_P2_ALGOSWRST, 0); + break; + } + + return lock; +} + +int stv0900_sw_algo(struct stv0900_internal *i_params, + enum fe_stv0900_demod_num demod) +{ + int lock = FALSE; + + int no_signal, + zigzag; + s32 dvbs2_fly_wheel; + + s32 freqIncrement, softStepTimeout, trialCounter, max_steps; + + stv0900_get_sw_loop_params(i_params, &freqIncrement, &softStepTimeout, + &max_steps, demod); + switch (demod) { + case STV0900_DEMOD_1: + default: + switch (i_params->dmd1_srch_standard) { + case STV0900_SEARCH_DVBS1: + case STV0900_SEARCH_DSS: + if (i_params->chip_id >= 0x20) + stv0900_write_reg(i_params, R0900_P1_CARFREQ, + 0x3B); + else + stv0900_write_reg(i_params, R0900_P1_CARFREQ, + 0xef); + + stv0900_write_reg(i_params, R0900_P1_DMDCFGMD, 0x49); + zigzag = FALSE; + break; + case STV0900_SEARCH_DVBS2: + if (i_params->chip_id >= 0x20) + stv0900_write_reg(i_params, R0900_P1_CORRELABS, + 0x79); + else + stv0900_write_reg(i_params, R0900_P1_CORRELABS, + 0x68); + + stv0900_write_reg(i_params, R0900_P1_DMDCFGMD, + 0x89); + + zigzag = TRUE; + break; + case STV0900_AUTO_SEARCH: + default: + if (i_params->chip_id >= 0x20) { + stv0900_write_reg(i_params, R0900_P1_CARFREQ, + 0x3B); + stv0900_write_reg(i_params, R0900_P1_CORRELABS, + 0x79); + } else { + stv0900_write_reg(i_params, R0900_P1_CARFREQ, + 0xef); + stv0900_write_reg(i_params, R0900_P1_CORRELABS, + 0x68); + } + + stv0900_write_reg(i_params, R0900_P1_DMDCFGMD, + 0xc9); + zigzag = FALSE; + break; + } + + trialCounter = 0; + do { + lock = stv0900_search_carr_sw_loop(i_params, + freqIncrement, + softStepTimeout, + zigzag, + max_steps, + demod); + no_signal = stv0900_check_signal_presence(i_params, + demod); + trialCounter++; + if ((lock == TRUE) + || (no_signal == TRUE) + || (trialCounter == 2)) { + + if (i_params->chip_id >= 0x20) { + stv0900_write_reg(i_params, + R0900_P1_CARFREQ, + 0x49); + stv0900_write_reg(i_params, + R0900_P1_CORRELABS, + 0x9e); + } else { + stv0900_write_reg(i_params, + R0900_P1_CARFREQ, + 0xed); + stv0900_write_reg(i_params, + R0900_P1_CORRELABS, + 0x88); + } + + if ((lock == TRUE) && (stv0900_get_bits(i_params, F0900_P1_HEADER_MODE) == STV0900_DVBS2_FOUND)) { + msleep(softStepTimeout); + dvbs2_fly_wheel = stv0900_get_bits(i_params, F0900_P1_FLYWHEEL_CPT); + + if (dvbs2_fly_wheel < 0xd) { + msleep(softStepTimeout); + dvbs2_fly_wheel = stv0900_get_bits(i_params, F0900_P1_FLYWHEEL_CPT); + } + + if (dvbs2_fly_wheel < 0xd) { + lock = FALSE; + + if (trialCounter < 2) { + if (i_params->chip_id >= 0x20) + stv0900_write_reg(i_params, R0900_P1_CORRELABS, 0x79); + else + stv0900_write_reg(i_params, R0900_P1_CORRELABS, 0x68); + + stv0900_write_reg(i_params, R0900_P1_DMDCFGMD, 0x89); + } + } + } + } + + } while ((lock == FALSE) + && (trialCounter < 2) + && (no_signal == FALSE)); + + break; + case STV0900_DEMOD_2: + switch (i_params->dmd2_srch_stndrd) { + case STV0900_SEARCH_DVBS1: + case STV0900_SEARCH_DSS: + if (i_params->chip_id >= 0x20) + stv0900_write_reg(i_params, R0900_P2_CARFREQ, + 0x3b); + else + stv0900_write_reg(i_params, R0900_P2_CARFREQ, + 0xef); + + stv0900_write_reg(i_params, R0900_P2_DMDCFGMD, + 0x49); + zigzag = FALSE; + break; + case STV0900_SEARCH_DVBS2: + if (i_params->chip_id >= 0x20) + stv0900_write_reg(i_params, R0900_P2_CORRELABS, + 0x79); + else + stv0900_write_reg(i_params, R0900_P2_CORRELABS, + 0x68); + + stv0900_write_reg(i_params, R0900_P2_DMDCFGMD, 0x89); + zigzag = TRUE; + break; + case STV0900_AUTO_SEARCH: + default: + if (i_params->chip_id >= 0x20) { + stv0900_write_reg(i_params, R0900_P2_CARFREQ, + 0x3b); + stv0900_write_reg(i_params, R0900_P2_CORRELABS, + 0x79); + } else { + stv0900_write_reg(i_params, R0900_P2_CARFREQ, + 0xef); + stv0900_write_reg(i_params, R0900_P2_CORRELABS, + 0x68); + } + + stv0900_write_reg(i_params, R0900_P2_DMDCFGMD, 0xc9); + + zigzag = FALSE; + break; + } + + trialCounter = 0; + + do { + lock = stv0900_search_carr_sw_loop(i_params, + freqIncrement, + softStepTimeout, + zigzag, + max_steps, + demod); + no_signal = stv0900_check_signal_presence(i_params, + demod); + trialCounter++; + if ((lock == TRUE) + || (no_signal == TRUE) + || (trialCounter == 2)) { + if (i_params->chip_id >= 0x20) { + stv0900_write_reg(i_params, + R0900_P2_CARFREQ, + 0x49); + stv0900_write_reg(i_params, + R0900_P2_CORRELABS, + 0x9e); + } else { + stv0900_write_reg(i_params, + R0900_P2_CARFREQ, + 0xed); + stv0900_write_reg(i_params, + R0900_P2_CORRELABS, + 0x88); + } + + if ((lock == TRUE) && (stv0900_get_bits(i_params, F0900_P2_HEADER_MODE) == STV0900_DVBS2_FOUND)) { + msleep(softStepTimeout); + dvbs2_fly_wheel = stv0900_get_bits(i_params, F0900_P2_FLYWHEEL_CPT); + if (dvbs2_fly_wheel < 0xd) { + msleep(softStepTimeout); + dvbs2_fly_wheel = stv0900_get_bits(i_params, F0900_P2_FLYWHEEL_CPT); + } + + if (dvbs2_fly_wheel < 0xd) { + lock = FALSE; + if (trialCounter < 2) { + if (i_params->chip_id >= 0x20) + stv0900_write_reg(i_params, R0900_P2_CORRELABS, 0x79); + else + stv0900_write_reg(i_params, R0900_P2_CORRELABS, 0x68); + + stv0900_write_reg(i_params, R0900_P2_DMDCFGMD, 0x89); + } + } + } + } + + } while ((lock == FALSE) && (trialCounter < 2) && (no_signal == FALSE)); + + break; + } + + return lock; +} + +static u32 stv0900_get_symbol_rate(struct stv0900_internal *i_params, + u32 mclk, + enum fe_stv0900_demod_num demod) +{ + s32 sfr_field3, sfr_field2, sfr_field1, sfr_field0, + rem1, rem2, intval1, intval2, srate; + + dmd_reg(sfr_field3, F0900_P1_SYMB_FREQ3, F0900_P2_SYMB_FREQ3); + dmd_reg(sfr_field2, F0900_P1_SYMB_FREQ2, F0900_P2_SYMB_FREQ2); + dmd_reg(sfr_field1, F0900_P1_SYMB_FREQ1, F0900_P2_SYMB_FREQ1); + dmd_reg(sfr_field0, F0900_P1_SYMB_FREQ0, F0900_P2_SYMB_FREQ0); + + srate = (stv0900_get_bits(i_params, sfr_field3) << 24) + + (stv0900_get_bits(i_params, sfr_field2) << 16) + + (stv0900_get_bits(i_params, sfr_field1) << 8) + + (stv0900_get_bits(i_params, sfr_field0)); + dprintk("lock: srate=%d r0=0x%x r1=0x%x r2=0x%x r3=0x%x \n", + srate, stv0900_get_bits(i_params, sfr_field0), + stv0900_get_bits(i_params, sfr_field1), + stv0900_get_bits(i_params, sfr_field2), + stv0900_get_bits(i_params, sfr_field3)); + + intval1 = (mclk) >> 16; + intval2 = (srate) >> 16; + + rem1 = (mclk) % 0x10000; + rem2 = (srate) % 0x10000; + srate = (intval1 * intval2) + + ((intval1 * rem2) >> 16) + + ((intval2 * rem1) >> 16); + + return srate; +} + +static void stv0900_set_symbol_rate(struct stv0900_internal *i_params, + u32 mclk, u32 srate, + enum fe_stv0900_demod_num demod) +{ + s32 sfr_init_reg; + u32 symb; + + dprintk(KERN_INFO "%s: Mclk %d, SR %d, Dmd %d\n", __func__, mclk, + srate, demod); + + dmd_reg(sfr_init_reg, R0900_P1_SFRINIT1, R0900_P2_SFRINIT1); + + if (srate > 60000000) { + symb = srate << 4; + symb /= (mclk >> 12); + } else if (srate > 6000000) { + symb = srate << 6; + symb /= (mclk >> 10); + } else { + symb = srate << 9; + symb /= (mclk >> 7); + } + + stv0900_write_reg(i_params, sfr_init_reg, (symb >> 8) & 0x7F); + stv0900_write_reg(i_params, sfr_init_reg + 1, (symb & 0xFF)); +} + +static void stv0900_set_max_symbol_rate(struct stv0900_internal *i_params, + u32 mclk, u32 srate, + enum fe_stv0900_demod_num demod) +{ + s32 sfr_max_reg; + u32 symb; + + dmd_reg(sfr_max_reg, R0900_P1_SFRUP1, R0900_P2_SFRUP1); + + srate = 105 * (srate / 100); + + if (srate > 60000000) { + symb = srate << 4; + symb /= (mclk >> 12); + } else if (srate > 6000000) { + symb = srate << 6; + symb /= (mclk >> 10); + } else { + symb = srate << 9; + symb /= (mclk >> 7); + } + + if (symb < 0x7fff) { + stv0900_write_reg(i_params, sfr_max_reg, (symb >> 8) & 0x7F); + stv0900_write_reg(i_params, sfr_max_reg + 1, (symb & 0xFF)); + } else { + stv0900_write_reg(i_params, sfr_max_reg, 0x7F); + stv0900_write_reg(i_params, sfr_max_reg + 1, 0xFF); + } +} + +static void stv0900_set_min_symbol_rate(struct stv0900_internal *i_params, + u32 mclk, u32 srate, + enum fe_stv0900_demod_num demod) +{ + s32 sfr_min_reg; + u32 symb; + + dmd_reg(sfr_min_reg, R0900_P1_SFRLOW1, R0900_P2_SFRLOW1); + + srate = 95 * (srate / 100); + if (srate > 60000000) { + symb = srate << 4; + symb /= (mclk >> 12); + + } else if (srate > 6000000) { + symb = srate << 6; + symb /= (mclk >> 10); + + } else { + symb = srate << 9; + symb /= (mclk >> 7); + } + + stv0900_write_reg(i_params, sfr_min_reg, (symb >> 8) & 0xFF); + stv0900_write_reg(i_params, sfr_min_reg + 1, (symb & 0xFF)); +} + +static s32 stv0900_get_timing_offst(struct stv0900_internal *i_params, + u32 srate, + enum fe_stv0900_demod_num demod) +{ + s32 tmgreg, + timingoffset; + + dmd_reg(tmgreg, R0900_P1_TMGREG2, R0900_P2_TMGREG2); + + timingoffset = (stv0900_read_reg(i_params, tmgreg) << 16) + + (stv0900_read_reg(i_params, tmgreg + 1) << 8) + + (stv0900_read_reg(i_params, tmgreg + 2)); + + timingoffset = ge2comp(timingoffset, 24); + + + if (timingoffset == 0) + timingoffset = 1; + + timingoffset = ((s32)srate * 10) / ((s32)0x1000000 / timingoffset); + timingoffset /= 320; + + return timingoffset; +} + +static void stv0900_set_dvbs2_rolloff(struct stv0900_internal *i_params, + enum fe_stv0900_demod_num demod) +{ + s32 rolloff, man_fld, matstr_reg, rolloff_ctl_fld; + + dmd_reg(man_fld, F0900_P1_MANUAL_ROLLOFF, F0900_P2_MANUAL_ROLLOFF); + dmd_reg(matstr_reg, R0900_P1_MATSTR1, R0900_P2_MATSTR1); + dmd_reg(rolloff_ctl_fld, F0900_P1_ROLLOFF_CONTROL, + F0900_P2_ROLLOFF_CONTROL); + + if (i_params->chip_id == 0x10) { + stv0900_write_bits(i_params, man_fld, 1); + rolloff = stv0900_read_reg(i_params, matstr_reg) & 0x03; + stv0900_write_bits(i_params, rolloff_ctl_fld, rolloff); + } else + stv0900_write_bits(i_params, man_fld, 0); +} + +static u32 stv0900_carrier_width(u32 srate, enum fe_stv0900_rolloff ro) +{ + u32 rolloff; + + switch (ro) { + case STV0900_20: + rolloff = 20; + break; + case STV0900_25: + rolloff = 25; + break; + case STV0900_35: + default: + rolloff = 35; + break; + } + + return srate + (srate * rolloff) / 100; +} + +static int stv0900_check_timing_lock(struct stv0900_internal *i_params, + enum fe_stv0900_demod_num demod) +{ + int timingLock = FALSE; + s32 i, + timingcpt = 0; + u8 carFreq, + tmgTHhigh, + tmgTHLow; + + switch (demod) { + case STV0900_DEMOD_1: + default: + carFreq = stv0900_read_reg(i_params, R0900_P1_CARFREQ); + tmgTHhigh = stv0900_read_reg(i_params, R0900_P1_TMGTHRISE); + tmgTHLow = stv0900_read_reg(i_params, R0900_P1_TMGTHFALL); + stv0900_write_reg(i_params, R0900_P1_TMGTHRISE, 0x20); + stv0900_write_reg(i_params, R0900_P1_TMGTHFALL, 0x0); + stv0900_write_bits(i_params, F0900_P1_CFR_AUTOSCAN, 0); + stv0900_write_reg(i_params, R0900_P1_RTC, 0x80); + stv0900_write_reg(i_params, R0900_P1_RTCS2, 0x40); + stv0900_write_reg(i_params, R0900_P1_CARFREQ, 0x0); + stv0900_write_reg(i_params, R0900_P1_CFRINIT1, 0x0); + stv0900_write_reg(i_params, R0900_P1_CFRINIT0, 0x0); + stv0900_write_reg(i_params, R0900_P1_AGC2REF, 0x65); + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x18); + msleep(7); + + for (i = 0; i < 10; i++) { + if (stv0900_get_bits(i_params, F0900_P1_TMGLOCK_QUALITY) >= 2) + timingcpt++; + + msleep(1); + } + + if (timingcpt >= 3) + timingLock = TRUE; + + stv0900_write_reg(i_params, R0900_P1_AGC2REF, 0x38); + stv0900_write_reg(i_params, R0900_P1_RTC, 0x88); + stv0900_write_reg(i_params, R0900_P1_RTCS2, 0x68); + stv0900_write_reg(i_params, R0900_P1_CARFREQ, carFreq); + stv0900_write_reg(i_params, R0900_P1_TMGTHRISE, tmgTHhigh); + stv0900_write_reg(i_params, R0900_P1_TMGTHFALL, tmgTHLow); + break; + case STV0900_DEMOD_2: + carFreq = stv0900_read_reg(i_params, R0900_P2_CARFREQ); + tmgTHhigh = stv0900_read_reg(i_params, R0900_P2_TMGTHRISE); + tmgTHLow = stv0900_read_reg(i_params, R0900_P2_TMGTHFALL); + stv0900_write_reg(i_params, R0900_P2_TMGTHRISE, 0x20); + stv0900_write_reg(i_params, R0900_P2_TMGTHFALL, 0); + stv0900_write_bits(i_params, F0900_P2_CFR_AUTOSCAN, 0); + stv0900_write_reg(i_params, R0900_P2_RTC, 0x80); + stv0900_write_reg(i_params, R0900_P2_RTCS2, 0x40); + stv0900_write_reg(i_params, R0900_P2_CARFREQ, 0x0); + stv0900_write_reg(i_params, R0900_P2_CFRINIT1, 0x0); + stv0900_write_reg(i_params, R0900_P2_CFRINIT0, 0x0); + stv0900_write_reg(i_params, R0900_P2_AGC2REF, 0x65); + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x18); + msleep(5); + for (i = 0; i < 10; i++) { + if (stv0900_get_bits(i_params, F0900_P2_TMGLOCK_QUALITY) >= 2) + timingcpt++; + + msleep(1); + } + + if (timingcpt >= 3) + timingLock = TRUE; + + stv0900_write_reg(i_params, R0900_P2_AGC2REF, 0x38); + stv0900_write_reg(i_params, R0900_P2_RTC, 0x88); + stv0900_write_reg(i_params, R0900_P2_RTCS2, 0x68); + stv0900_write_reg(i_params, R0900_P2_CARFREQ, carFreq); + stv0900_write_reg(i_params, R0900_P2_TMGTHRISE, tmgTHhigh); + stv0900_write_reg(i_params, R0900_P2_TMGTHFALL, tmgTHLow); + break; + } + + return timingLock; +} + +static int stv0900_get_demod_cold_lock(struct dvb_frontend *fe, + s32 demod_timeout) +{ + struct stv0900_state *state = fe->demodulator_priv; + struct stv0900_internal *i_params = state->internal; + enum fe_stv0900_demod_num demod = state->demod; + + int lock = FALSE; + s32 srate, search_range, locktimeout, + currier_step, nb_steps, current_step, + direction, tuner_freq, timeout; + + switch (demod) { + case STV0900_DEMOD_1: + default: + srate = i_params->dmd1_symbol_rate; + search_range = i_params->dmd1_srch_range; + break; + + case STV0900_DEMOD_2: + srate = i_params->dmd2_symbol_rate; + search_range = i_params->dmd2_srch_range; + break; + } + + if (srate >= 10000000) + locktimeout = demod_timeout / 3; + else + locktimeout = demod_timeout / 2; + + lock = stv0900_get_demod_lock(i_params, demod, locktimeout); + + if (lock == FALSE) { + if (srate >= 10000000) { + if (stv0900_check_timing_lock(i_params, demod) == TRUE) { + switch (demod) { + case STV0900_DEMOD_1: + default: + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x1f); + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x15); + break; + case STV0900_DEMOD_2: + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x1f); + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x15); + break; + } + + lock = stv0900_get_demod_lock(i_params, demod, demod_timeout); + } else + lock = FALSE; + } else { + if (srate <= 4000000) + currier_step = 1000; + else if (srate <= 7000000) + currier_step = 2000; + else if (srate <= 10000000) + currier_step = 3000; + else + currier_step = 5000; + + nb_steps = ((search_range / 1000) / currier_step); + nb_steps /= 2; + nb_steps = (2 * (nb_steps + 1)); + if (nb_steps < 0) + nb_steps = 2; + else if (nb_steps > 12) + nb_steps = 12; + + current_step = 1; + direction = 1; + timeout = (demod_timeout / 3); + if (timeout > 1000) + timeout = 1000; + + switch (demod) { + case STV0900_DEMOD_1: + default: + if (lock == FALSE) { + tuner_freq = i_params->tuner1_freq; + i_params->tuner1_bw = stv0900_carrier_width(i_params->dmd1_symbol_rate, i_params->rolloff) + i_params->dmd1_symbol_rate; + + while ((current_step <= nb_steps) && (lock == FALSE)) { + + if (direction > 0) + tuner_freq += (current_step * currier_step); + else + tuner_freq -= (current_step * currier_step); + + stv0900_set_tuner(fe, tuner_freq, i_params->tuner1_bw); + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x1C); + if (i_params->dmd1_srch_standard == STV0900_SEARCH_DVBS2) { + stv0900_write_bits(i_params, F0900_P1_DVBS1_ENABLE, 0); + stv0900_write_bits(i_params, F0900_P1_DVBS2_ENABLE, 0); + stv0900_write_bits(i_params, F0900_P1_DVBS1_ENABLE, 1); + stv0900_write_bits(i_params, F0900_P1_DVBS2_ENABLE, 1); + } + + stv0900_write_reg(i_params, R0900_P1_CFRINIT1, 0); + stv0900_write_reg(i_params, R0900_P1_CFRINIT0, 0); + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x1F); + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x15); + lock = stv0900_get_demod_lock(i_params, demod, timeout); + direction *= -1; + current_step++; + } + } + break; + case STV0900_DEMOD_2: + if (lock == FALSE) { + tuner_freq = i_params->tuner2_freq; + i_params->tuner2_bw = stv0900_carrier_width(srate, i_params->rolloff) + srate; + + while ((current_step <= nb_steps) && (lock == FALSE)) { + + if (direction > 0) + tuner_freq += (current_step * currier_step); + else + tuner_freq -= (current_step * currier_step); + + stv0900_set_tuner(fe, tuner_freq, i_params->tuner2_bw); + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x1C); + if (i_params->dmd2_srch_stndrd == STV0900_SEARCH_DVBS2) { + stv0900_write_bits(i_params, F0900_P2_DVBS1_ENABLE, 0); + stv0900_write_bits(i_params, F0900_P2_DVBS2_ENABLE, 0); + stv0900_write_bits(i_params, F0900_P2_DVBS1_ENABLE, 1); + stv0900_write_bits(i_params, F0900_P2_DVBS2_ENABLE, 1); + } + + stv0900_write_reg(i_params, R0900_P2_CFRINIT1, 0); + stv0900_write_reg(i_params, R0900_P2_CFRINIT0, 0); + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x1F); + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x15); + lock = stv0900_get_demod_lock(i_params, demod, timeout); + direction *= -1; + current_step++; + } + } + break; + } + } + } + + return lock; +} + +static void stv0900_get_lock_timeout(s32 *demod_timeout, s32 *fec_timeout, + s32 srate, + enum fe_stv0900_search_algo algo) +{ + switch (algo) { + case STV0900_BLIND_SEARCH: + if (srate <= 1500000) { + (*demod_timeout) = 1500; + (*fec_timeout) = 400; + } else if (srate <= 5000000) { + (*demod_timeout) = 1000; + (*fec_timeout) = 300; + } else { + (*demod_timeout) = 700; + (*fec_timeout) = 100; + } + + break; + case STV0900_COLD_START: + case STV0900_WARM_START: + default: + if (srate <= 1000000) { + (*demod_timeout) = 3000; + (*fec_timeout) = 1700; + } else if (srate <= 2000000) { + (*demod_timeout) = 2500; + (*fec_timeout) = 1100; + } else if (srate <= 5000000) { + (*demod_timeout) = 1000; + (*fec_timeout) = 550; + } else if (srate <= 10000000) { + (*demod_timeout) = 700; + (*fec_timeout) = 250; + } else if (srate <= 20000000) { + (*demod_timeout) = 400; + (*fec_timeout) = 130; + } + + else { + (*demod_timeout) = 300; + (*fec_timeout) = 100; + } + + break; + + } + + if (algo == STV0900_WARM_START) + (*demod_timeout) /= 2; +} + +static void stv0900_set_viterbi_tracq(struct stv0900_internal *i_params, + enum fe_stv0900_demod_num demod) +{ + + s32 vth_reg; + + dprintk(KERN_INFO "%s\n", __func__); + + dmd_reg(vth_reg, R0900_P1_VTH12, R0900_P2_VTH12); + + stv0900_write_reg(i_params, vth_reg++, 0xd0); + stv0900_write_reg(i_params, vth_reg++, 0x7d); + stv0900_write_reg(i_params, vth_reg++, 0x53); + stv0900_write_reg(i_params, vth_reg++, 0x2F); + stv0900_write_reg(i_params, vth_reg++, 0x24); + stv0900_write_reg(i_params, vth_reg++, 0x1F); +} + +static void stv0900_set_viterbi_standard(struct stv0900_internal *i_params, + enum fe_stv0900_search_standard Standard, + enum fe_stv0900_fec PunctureRate, + enum fe_stv0900_demod_num demod) +{ + + s32 fecmReg, + prvitReg; + + dprintk(KERN_INFO "%s: ViterbiStandard = ", __func__); + + switch (demod) { + case STV0900_DEMOD_1: + default: + fecmReg = R0900_P1_FECM; + prvitReg = R0900_P1_PRVIT; + break; + case STV0900_DEMOD_2: + fecmReg = R0900_P2_FECM; + prvitReg = R0900_P2_PRVIT; + break; + } + + switch (Standard) { + case STV0900_AUTO_SEARCH: + dprintk("Auto\n"); + stv0900_write_reg(i_params, fecmReg, 0x10); + stv0900_write_reg(i_params, prvitReg, 0x3F); + break; + case STV0900_SEARCH_DVBS1: + dprintk("DVBS1\n"); + stv0900_write_reg(i_params, fecmReg, 0x00); + switch (PunctureRate) { + case STV0900_FEC_UNKNOWN: + default: + stv0900_write_reg(i_params, prvitReg, 0x2F); + break; + case STV0900_FEC_1_2: + stv0900_write_reg(i_params, prvitReg, 0x01); + break; + case STV0900_FEC_2_3: + stv0900_write_reg(i_params, prvitReg, 0x02); + break; + case STV0900_FEC_3_4: + stv0900_write_reg(i_params, prvitReg, 0x04); + break; + case STV0900_FEC_5_6: + stv0900_write_reg(i_params, prvitReg, 0x08); + break; + case STV0900_FEC_7_8: + stv0900_write_reg(i_params, prvitReg, 0x20); + break; + } + + break; + case STV0900_SEARCH_DSS: + dprintk("DSS\n"); + stv0900_write_reg(i_params, fecmReg, 0x80); + switch (PunctureRate) { + case STV0900_FEC_UNKNOWN: + default: + stv0900_write_reg(i_params, prvitReg, 0x13); + break; + case STV0900_FEC_1_2: + stv0900_write_reg(i_params, prvitReg, 0x01); + break; + case STV0900_FEC_2_3: + stv0900_write_reg(i_params, prvitReg, 0x02); + break; + case STV0900_FEC_6_7: + stv0900_write_reg(i_params, prvitReg, 0x10); + break; + } + break; + default: + break; + } +} + +static void stv0900_track_optimization(struct dvb_frontend *fe) +{ + struct stv0900_state *state = fe->demodulator_priv; + struct stv0900_internal *i_params = state->internal; + enum fe_stv0900_demod_num demod = state->demod; + + s32 srate, pilots, aclc, freq1, freq0, + i = 0, timed, timef, blindTunSw = 0; + + enum fe_stv0900_rolloff rolloff; + enum fe_stv0900_modcode foundModcod; + + dprintk(KERN_INFO "%s\n", __func__); + + srate = stv0900_get_symbol_rate(i_params, i_params->mclk, demod); + srate += stv0900_get_timing_offst(i_params, srate, demod); + + switch (demod) { + case STV0900_DEMOD_1: + default: + switch (i_params->dmd1_rslts.standard) { + case STV0900_DVBS1_STANDARD: + if (i_params->dmd1_srch_standard == STV0900_AUTO_SEARCH) { + stv0900_write_bits(i_params, F0900_P1_DVBS1_ENABLE, 1); + stv0900_write_bits(i_params, F0900_P1_DVBS2_ENABLE, 0); + } + + stv0900_write_bits(i_params, F0900_P1_ROLLOFF_CONTROL, i_params->rolloff); + stv0900_write_bits(i_params, F0900_P1_MANUAL_ROLLOFF, 1); + stv0900_write_reg(i_params, R0900_P1_ERRCTRL1, 0x75); + break; + case STV0900_DSS_STANDARD: + if (i_params->dmd1_srch_standard == STV0900_AUTO_SEARCH) { + stv0900_write_bits(i_params, F0900_P1_DVBS1_ENABLE, 1); + stv0900_write_bits(i_params, F0900_P1_DVBS2_ENABLE, 0); + } + + stv0900_write_bits(i_params, F0900_P1_ROLLOFF_CONTROL, i_params->rolloff); + stv0900_write_bits(i_params, F0900_P1_MANUAL_ROLLOFF, 1); + stv0900_write_reg(i_params, R0900_P1_ERRCTRL1, 0x75); + break; + case STV0900_DVBS2_STANDARD: + stv0900_write_bits(i_params, F0900_P1_DVBS1_ENABLE, 0); + stv0900_write_bits(i_params, F0900_P1_DVBS2_ENABLE, 1); + stv0900_write_reg(i_params, R0900_P1_ACLC, 0); + stv0900_write_reg(i_params, R0900_P1_BCLC, 0); + if (i_params->dmd1_rslts.frame_length == STV0900_LONG_FRAME) { + foundModcod = stv0900_get_bits(i_params, F0900_P1_DEMOD_MODCOD); + pilots = stv0900_get_bits(i_params, F0900_P1_DEMOD_TYPE) & 0x01; + aclc = stv0900_get_optim_carr_loop(srate, foundModcod, pilots, i_params->chip_id); + if (foundModcod <= STV0900_QPSK_910) + stv0900_write_reg(i_params, R0900_P1_ACLC2S2Q, aclc); + else if (foundModcod <= STV0900_8PSK_910) { + stv0900_write_reg(i_params, R0900_P1_ACLC2S2Q, 0x2a); + stv0900_write_reg(i_params, R0900_P1_ACLC2S28, aclc); + } + + if ((i_params->demod_mode == STV0900_SINGLE) && (foundModcod > STV0900_8PSK_910)) { + if (foundModcod <= STV0900_16APSK_910) { + stv0900_write_reg(i_params, R0900_P1_ACLC2S2Q, 0x2a); + stv0900_write_reg(i_params, R0900_P1_ACLC2S216A, aclc); + } else if (foundModcod <= STV0900_32APSK_910) { + stv0900_write_reg(i_params, R0900_P1_ACLC2S2Q, 0x2a); + stv0900_write_reg(i_params, R0900_P1_ACLC2S232A, aclc); + } + } + + } else { + aclc = stv0900_get_optim_short_carr_loop(srate, i_params->dmd1_rslts.modulation, i_params->chip_id); + if (i_params->dmd1_rslts.modulation == STV0900_QPSK) + stv0900_write_reg(i_params, R0900_P1_ACLC2S2Q, aclc); + + else if (i_params->dmd1_rslts.modulation == STV0900_8PSK) { + stv0900_write_reg(i_params, R0900_P1_ACLC2S2Q, 0x2a); + stv0900_write_reg(i_params, R0900_P1_ACLC2S28, aclc); + } else if (i_params->dmd1_rslts.modulation == STV0900_16APSK) { + stv0900_write_reg(i_params, R0900_P1_ACLC2S2Q, 0x2a); + stv0900_write_reg(i_params, R0900_P1_ACLC2S216A, aclc); + } else if (i_params->dmd1_rslts.modulation == STV0900_32APSK) { + stv0900_write_reg(i_params, R0900_P1_ACLC2S2Q, 0x2a); + stv0900_write_reg(i_params, R0900_P1_ACLC2S232A, aclc); + } + + } + + if (i_params->chip_id <= 0x11) { + if (i_params->demod_mode != STV0900_SINGLE) + stv0900_activate_s2_modcode(i_params, demod); + + } + + stv0900_write_reg(i_params, R0900_P1_ERRCTRL1, 0x67); + break; + case STV0900_UNKNOWN_STANDARD: + default: + stv0900_write_bits(i_params, F0900_P1_DVBS1_ENABLE, 1); + stv0900_write_bits(i_params, F0900_P1_DVBS2_ENABLE, 1); + break; + } + + freq1 = stv0900_read_reg(i_params, R0900_P1_CFR2); + freq0 = stv0900_read_reg(i_params, R0900_P1_CFR1); + rolloff = stv0900_get_bits(i_params, F0900_P1_ROLLOFF_STATUS); + if (i_params->dmd1_srch_algo == STV0900_BLIND_SEARCH) { + stv0900_write_reg(i_params, R0900_P1_SFRSTEP, 0x00); + stv0900_write_bits(i_params, F0900_P1_SCAN_ENABLE, 0); + stv0900_write_bits(i_params, F0900_P1_CFR_AUTOSCAN, 0); + stv0900_write_reg(i_params, R0900_P1_TMGCFG2, 0x01); + stv0900_set_symbol_rate(i_params, i_params->mclk, srate, demod); + stv0900_set_max_symbol_rate(i_params, i_params->mclk, srate, demod); + stv0900_set_min_symbol_rate(i_params, i_params->mclk, srate, demod); + blindTunSw = 1; + } + + if (i_params->chip_id >= 0x20) { + if ((i_params->dmd1_srch_standard == STV0900_SEARCH_DVBS1) || (i_params->dmd1_srch_standard == STV0900_SEARCH_DSS) || (i_params->dmd1_srch_standard == STV0900_AUTO_SEARCH)) { + stv0900_write_reg(i_params, R0900_P1_VAVSRVIT, 0x0a); + stv0900_write_reg(i_params, R0900_P1_VITSCALE, 0x0); + } + } + + if (i_params->chip_id < 0x20) + stv0900_write_reg(i_params, R0900_P1_CARHDR, 0x08); + + if (i_params->chip_id == 0x10) + stv0900_write_reg(i_params, R0900_P1_CORRELEXP, 0x0A); + + stv0900_write_reg(i_params, R0900_P1_AGC2REF, 0x38); + + if ((i_params->chip_id >= 0x20) || (blindTunSw == 1) || (i_params->dmd1_symbol_rate < 10000000)) { + stv0900_write_reg(i_params, R0900_P1_CFRINIT1, freq1); + stv0900_write_reg(i_params, R0900_P1_CFRINIT0, freq0); + i_params->tuner1_bw = stv0900_carrier_width(srate, i_params->rolloff) + 10000000; + + if ((i_params->chip_id >= 0x20) || (blindTunSw == 1)) { + if (i_params->dmd1_srch_algo != STV0900_WARM_START) + stv0900_set_bandwidth(fe, i_params->tuner1_bw); + } + + if ((i_params->dmd1_srch_algo == STV0900_BLIND_SEARCH) || (i_params->dmd1_symbol_rate < 10000000)) + msleep(50); + else + msleep(5); + + stv0900_get_lock_timeout(&timed, &timef, srate, STV0900_WARM_START); + + if (stv0900_get_demod_lock(i_params, demod, timed / 2) == FALSE) { + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x1F); + stv0900_write_reg(i_params, R0900_P1_CFRINIT1, freq1); + stv0900_write_reg(i_params, R0900_P1_CFRINIT0, freq0); + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x18); + i = 0; + while ((stv0900_get_demod_lock(i_params, demod, timed / 2) == FALSE) && (i <= 2)) { + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x1F); + stv0900_write_reg(i_params, R0900_P1_CFRINIT1, freq1); + stv0900_write_reg(i_params, R0900_P1_CFRINIT0, freq0); + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x18); + i++; + } + } + + } + + if (i_params->chip_id >= 0x20) + stv0900_write_reg(i_params, R0900_P1_CARFREQ, 0x49); + + if ((i_params->dmd1_rslts.standard == STV0900_DVBS1_STANDARD) || (i_params->dmd1_rslts.standard == STV0900_DSS_STANDARD)) + stv0900_set_viterbi_tracq(i_params, demod); + + break; + + case STV0900_DEMOD_2: + switch (i_params->dmd2_rslts.standard) { + case STV0900_DVBS1_STANDARD: + + if (i_params->dmd2_srch_stndrd == STV0900_AUTO_SEARCH) { + stv0900_write_bits(i_params, F0900_P2_DVBS1_ENABLE, 1); + stv0900_write_bits(i_params, F0900_P2_DVBS2_ENABLE, 0); + } + + stv0900_write_bits(i_params, F0900_P2_ROLLOFF_CONTROL, i_params->rolloff); + stv0900_write_bits(i_params, F0900_P2_MANUAL_ROLLOFF, 1); + stv0900_write_reg(i_params, R0900_P2_ERRCTRL1, 0x75); + break; + case STV0900_DSS_STANDARD: + if (i_params->dmd2_srch_stndrd == STV0900_AUTO_SEARCH) { + stv0900_write_bits(i_params, F0900_P2_DVBS1_ENABLE, 1); + stv0900_write_bits(i_params, F0900_P2_DVBS2_ENABLE, 0); + } + + stv0900_write_bits(i_params, F0900_P2_ROLLOFF_CONTROL, i_params->rolloff); + stv0900_write_bits(i_params, F0900_P2_MANUAL_ROLLOFF, 1); + stv0900_write_reg(i_params, R0900_P2_ERRCTRL1, 0x75); + break; + case STV0900_DVBS2_STANDARD: + stv0900_write_bits(i_params, F0900_P2_DVBS1_ENABLE, 0); + stv0900_write_bits(i_params, F0900_P2_DVBS2_ENABLE, 1); + stv0900_write_reg(i_params, R0900_P2_ACLC, 0); + stv0900_write_reg(i_params, R0900_P2_BCLC, 0); + if (i_params->dmd2_rslts.frame_length == STV0900_LONG_FRAME) { + foundModcod = stv0900_get_bits(i_params, F0900_P2_DEMOD_MODCOD); + pilots = stv0900_get_bits(i_params, F0900_P2_DEMOD_TYPE) & 0x01; + aclc = stv0900_get_optim_carr_loop(srate, foundModcod, pilots, i_params->chip_id); + if (foundModcod <= STV0900_QPSK_910) + stv0900_write_reg(i_params, R0900_P2_ACLC2S2Q, aclc); + else if (foundModcod <= STV0900_8PSK_910) { + stv0900_write_reg(i_params, R0900_P2_ACLC2S2Q, 0x2a); + stv0900_write_reg(i_params, R0900_P2_ACLC2S28, aclc); + } + + if ((i_params->demod_mode == STV0900_SINGLE) && (foundModcod > STV0900_8PSK_910)) { + if (foundModcod <= STV0900_16APSK_910) { + stv0900_write_reg(i_params, R0900_P2_ACLC2S2Q, 0x2a); + stv0900_write_reg(i_params, R0900_P2_ACLC2S216A, aclc); + } else if (foundModcod <= STV0900_32APSK_910) { + stv0900_write_reg(i_params, R0900_P2_ACLC2S2Q, 0x2a); + stv0900_write_reg(i_params, R0900_P2_ACLC2S232A, aclc); + } + + } + + } else { + aclc = stv0900_get_optim_short_carr_loop(srate, + i_params->dmd2_rslts.modulation, + i_params->chip_id); + + if (i_params->dmd2_rslts.modulation == STV0900_QPSK) + stv0900_write_reg(i_params, R0900_P2_ACLC2S2Q, aclc); + + else if (i_params->dmd2_rslts.modulation == STV0900_8PSK) { + stv0900_write_reg(i_params, R0900_P2_ACLC2S2Q, 0x2a); + stv0900_write_reg(i_params, R0900_P2_ACLC2S28, aclc); + } else if (i_params->dmd2_rslts.modulation == STV0900_16APSK) { + stv0900_write_reg(i_params, R0900_P2_ACLC2S2Q, 0x2a); + stv0900_write_reg(i_params, R0900_P2_ACLC2S216A, aclc); + } else if (i_params->dmd2_rslts.modulation == STV0900_32APSK) { + stv0900_write_reg(i_params, R0900_P2_ACLC2S2Q, 0x2a); + stv0900_write_reg(i_params, R0900_P2_ACLC2S232A, aclc); + } + } + + stv0900_write_reg(i_params, R0900_P2_ERRCTRL1, 0x67); + + break; + case STV0900_UNKNOWN_STANDARD: + default: + stv0900_write_bits(i_params, F0900_P2_DVBS1_ENABLE, 1); + stv0900_write_bits(i_params, F0900_P2_DVBS2_ENABLE, 1); + break; + } + + freq1 = stv0900_read_reg(i_params, R0900_P2_CFR2); + freq0 = stv0900_read_reg(i_params, R0900_P2_CFR1); + rolloff = stv0900_get_bits(i_params, F0900_P2_ROLLOFF_STATUS); + if (i_params->dmd2_srch_algo == STV0900_BLIND_SEARCH) { + stv0900_write_reg(i_params, R0900_P2_SFRSTEP, 0x00); + stv0900_write_bits(i_params, F0900_P2_SCAN_ENABLE, 0); + stv0900_write_bits(i_params, F0900_P2_CFR_AUTOSCAN, 0); + stv0900_write_reg(i_params, R0900_P2_TMGCFG2, 0x01); + stv0900_set_symbol_rate(i_params, i_params->mclk, srate, demod); + stv0900_set_max_symbol_rate(i_params, i_params->mclk, srate, demod); + stv0900_set_min_symbol_rate(i_params, i_params->mclk, srate, demod); + blindTunSw = 1; + } + + if (i_params->chip_id >= 0x20) { + if ((i_params->dmd2_srch_stndrd == STV0900_SEARCH_DVBS1) || (i_params->dmd2_srch_stndrd == STV0900_SEARCH_DSS) || (i_params->dmd2_srch_stndrd == STV0900_AUTO_SEARCH)) { + stv0900_write_reg(i_params, R0900_P2_VAVSRVIT, 0x0a); + stv0900_write_reg(i_params, R0900_P2_VITSCALE, 0x0); + } + } + + if (i_params->chip_id < 0x20) + stv0900_write_reg(i_params, R0900_P2_CARHDR, 0x08); + + if (i_params->chip_id == 0x10) + stv0900_write_reg(i_params, R0900_P2_CORRELEXP, 0x0a); + + stv0900_write_reg(i_params, R0900_P2_AGC2REF, 0x38); + if ((i_params->chip_id >= 0x20) || (blindTunSw == 1) || (i_params->dmd2_symbol_rate < 10000000)) { + stv0900_write_reg(i_params, R0900_P2_CFRINIT1, freq1); + stv0900_write_reg(i_params, R0900_P2_CFRINIT0, freq0); + i_params->tuner2_bw = stv0900_carrier_width(srate, i_params->rolloff) + 10000000; + + if ((i_params->chip_id >= 0x20) || (blindTunSw == 1)) { + if (i_params->dmd2_srch_algo != STV0900_WARM_START) + stv0900_set_bandwidth(fe, i_params->tuner2_bw); + } + + if ((i_params->dmd2_srch_algo == STV0900_BLIND_SEARCH) || (i_params->dmd2_symbol_rate < 10000000)) + msleep(50); + else + msleep(5); + + stv0900_get_lock_timeout(&timed, &timef, srate, STV0900_WARM_START); + if (stv0900_get_demod_lock(i_params, demod, timed / 2) == FALSE) { + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x1F); + stv0900_write_reg(i_params, R0900_P2_CFRINIT1, freq1); + stv0900_write_reg(i_params, R0900_P2_CFRINIT0, freq0); + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x18); + i = 0; + while ((stv0900_get_demod_lock(i_params, demod, timed / 2) == FALSE) && (i <= 2)) { + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x1F); + stv0900_write_reg(i_params, R0900_P2_CFRINIT1, freq1); + stv0900_write_reg(i_params, R0900_P2_CFRINIT0, freq0); + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x18); + i++; + } + } + } + + if (i_params->chip_id >= 0x20) + stv0900_write_reg(i_params, R0900_P2_CARFREQ, 0x49); + + if ((i_params->dmd2_rslts.standard == STV0900_DVBS1_STANDARD) || (i_params->dmd2_rslts.standard == STV0900_DSS_STANDARD)) + stv0900_set_viterbi_tracq(i_params, demod); + + break; + } +} + +static int stv0900_get_fec_lock(struct stv0900_internal *i_params, enum fe_stv0900_demod_num demod, s32 time_out) +{ + s32 timer = 0, lock = 0, header_field, pktdelin_field, lock_vit_field; + + enum fe_stv0900_search_state dmd_state; + + dprintk(KERN_INFO "%s\n", __func__); + + dmd_reg(header_field, F0900_P1_HEADER_MODE, F0900_P2_HEADER_MODE); + dmd_reg(pktdelin_field, F0900_P1_PKTDELIN_LOCK, F0900_P2_PKTDELIN_LOCK); + dmd_reg(lock_vit_field, F0900_P1_LOCKEDVIT, F0900_P2_LOCKEDVIT); + + dmd_state = stv0900_get_bits(i_params, header_field); + + while ((timer < time_out) && (lock == 0)) { + switch (dmd_state) { + case STV0900_SEARCH: + case STV0900_PLH_DETECTED: + default: + lock = 0; + break; + case STV0900_DVBS2_FOUND: + lock = stv0900_get_bits(i_params, pktdelin_field); + break; + case STV0900_DVBS_FOUND: + lock = stv0900_get_bits(i_params, lock_vit_field); + break; + } + + if (lock == 0) { + msleep(10); + timer += 10; + } + } + + if (lock) + dprintk("DEMOD FEC LOCK OK\n"); + else + dprintk("DEMOD FEC LOCK FAIL\n"); + + return lock; +} + +static int stv0900_wait_for_lock(struct stv0900_internal *i_params, + enum fe_stv0900_demod_num demod, + s32 dmd_timeout, s32 fec_timeout) +{ + + s32 timer = 0, lock = 0, str_merg_rst_fld, str_merg_lock_fld; + + dprintk(KERN_INFO "%s\n", __func__); + + dmd_reg(str_merg_rst_fld, F0900_P1_RST_HWARE, F0900_P2_RST_HWARE); + dmd_reg(str_merg_lock_fld, F0900_P1_TSFIFO_LINEOK, F0900_P2_TSFIFO_LINEOK); + + lock = stv0900_get_demod_lock(i_params, demod, dmd_timeout); + + if (lock) + lock = lock && stv0900_get_fec_lock(i_params, demod, fec_timeout); + + if (lock) { + lock = 0; + + dprintk(KERN_INFO "%s: Timer = %d, time_out = %d\n", __func__, timer, fec_timeout); + + while ((timer < fec_timeout) && (lock == 0)) { + lock = stv0900_get_bits(i_params, str_merg_lock_fld); + msleep(1); + timer++; + } + } + + if (lock) + dprintk(KERN_INFO "%s: DEMOD LOCK OK\n", __func__); + else + dprintk(KERN_INFO "%s: DEMOD LOCK FAIL\n", __func__); + + if (lock) + return TRUE; + else + return FALSE; +} + +enum fe_stv0900_tracking_standard stv0900_get_standard(struct dvb_frontend *fe, + enum fe_stv0900_demod_num demod) +{ + struct stv0900_state *state = fe->demodulator_priv; + struct stv0900_internal *i_params = state->internal; + enum fe_stv0900_tracking_standard fnd_standard; + s32 state_field, + dss_dvb_field; + + dprintk(KERN_INFO "%s\n", __func__); + + dmd_reg(state_field, F0900_P1_HEADER_MODE, F0900_P2_HEADER_MODE); + dmd_reg(dss_dvb_field, F0900_P1_DSS_DVB, F0900_P2_DSS_DVB); + + if (stv0900_get_bits(i_params, state_field) == 2) + fnd_standard = STV0900_DVBS2_STANDARD; + + else if (stv0900_get_bits(i_params, state_field) == 3) { + if (stv0900_get_bits(i_params, dss_dvb_field) == 1) + fnd_standard = STV0900_DSS_STANDARD; + else + fnd_standard = STV0900_DVBS1_STANDARD; + } else + fnd_standard = STV0900_UNKNOWN_STANDARD; + + return fnd_standard; +} + +static s32 stv0900_get_carr_freq(struct stv0900_internal *i_params, u32 mclk, + enum fe_stv0900_demod_num demod) +{ + s32 cfr_field2, cfr_field1, cfr_field0, + derot, rem1, rem2, intval1, intval2; + + dmd_reg(cfr_field2, F0900_P1_CAR_FREQ2, F0900_P2_CAR_FREQ2); + dmd_reg(cfr_field1, F0900_P1_CAR_FREQ1, F0900_P2_CAR_FREQ1); + dmd_reg(cfr_field0, F0900_P1_CAR_FREQ0, F0900_P2_CAR_FREQ0); + + derot = (stv0900_get_bits(i_params, cfr_field2) << 16) + + (stv0900_get_bits(i_params, cfr_field1) << 8) + + (stv0900_get_bits(i_params, cfr_field0)); + + derot = ge2comp(derot, 24); + intval1 = mclk >> 12; + intval2 = derot >> 12; + rem1 = mclk % 0x1000; + rem2 = derot % 0x1000; + derot = (intval1 * intval2) + + ((intval1 * rem2) >> 12) + + ((intval2 * rem1) >> 12); + + return derot; +} + +static u32 stv0900_get_tuner_freq(struct dvb_frontend *fe) +{ + struct dvb_frontend_ops *frontend_ops = NULL; + struct dvb_tuner_ops *tuner_ops = NULL; + u32 frequency = 0; + + if (&fe->ops) + frontend_ops = &fe->ops; + + if (&frontend_ops->tuner_ops) + tuner_ops = &frontend_ops->tuner_ops; + + if (tuner_ops->get_frequency) { + if ((tuner_ops->get_frequency(fe, &frequency)) < 0) + dprintk("%s: Invalid parameter\n", __func__); + else + dprintk("%s: Frequency=%d\n", __func__, frequency); + + } + + return frequency; +} + +static enum fe_stv0900_fec stv0900_get_vit_fec(struct stv0900_internal *i_params, + enum fe_stv0900_demod_num demod) +{ + s32 rate_fld, vit_curpun_fld; + enum fe_stv0900_fec prate; + + dmd_reg(vit_curpun_fld, F0900_P1_VIT_CURPUN, F0900_P2_VIT_CURPUN); + rate_fld = stv0900_get_bits(i_params, vit_curpun_fld); + + switch (rate_fld) { + case 13: + prate = STV0900_FEC_1_2; + break; + case 18: + prate = STV0900_FEC_2_3; + break; + case 21: + prate = STV0900_FEC_3_4; + break; + case 24: + prate = STV0900_FEC_5_6; + break; + case 25: + prate = STV0900_FEC_6_7; + break; + case 26: + prate = STV0900_FEC_7_8; + break; + default: + prate = STV0900_FEC_UNKNOWN; + break; + } + + return prate; +} + +static enum fe_stv0900_signal_type stv0900_get_signal_params(struct dvb_frontend *fe) +{ + struct stv0900_state *state = fe->demodulator_priv; + struct stv0900_internal *i_params = state->internal; + enum fe_stv0900_demod_num demod = state->demod; + enum fe_stv0900_signal_type range = STV0900_OUTOFRANGE; + s32 offsetFreq, + srate_offset, + i = 0; + + u8 timing; + + msleep(5); + switch (demod) { + case STV0900_DEMOD_1: + default: + if (i_params->dmd1_srch_algo == STV0900_BLIND_SEARCH) { + timing = stv0900_read_reg(i_params, R0900_P1_TMGREG2); + i = 0; + stv0900_write_reg(i_params, R0900_P1_SFRSTEP, 0x5c); + + while ((i <= 50) && (timing != 0) && (timing != 0xFF)) { + timing = stv0900_read_reg(i_params, R0900_P1_TMGREG2); + msleep(5); + i += 5; + } + } + + i_params->dmd1_rslts.standard = stv0900_get_standard(fe, demod); + i_params->dmd1_rslts.frequency = stv0900_get_tuner_freq(fe); + offsetFreq = stv0900_get_carr_freq(i_params, i_params->mclk, demod) / 1000; + i_params->dmd1_rslts.frequency += offsetFreq; + i_params->dmd1_rslts.symbol_rate = stv0900_get_symbol_rate(i_params, i_params->mclk, demod); + srate_offset = stv0900_get_timing_offst(i_params, i_params->dmd1_rslts.symbol_rate, demod); + i_params->dmd1_rslts.symbol_rate += srate_offset; + i_params->dmd1_rslts.fec = stv0900_get_vit_fec(i_params, demod); + i_params->dmd1_rslts.modcode = stv0900_get_bits(i_params, F0900_P1_DEMOD_MODCOD); + i_params->dmd1_rslts.pilot = stv0900_get_bits(i_params, F0900_P1_DEMOD_TYPE) & 0x01; + i_params->dmd1_rslts.frame_length = ((u32)stv0900_get_bits(i_params, F0900_P1_DEMOD_TYPE)) >> 1; + i_params->dmd1_rslts.rolloff = stv0900_get_bits(i_params, F0900_P1_ROLLOFF_STATUS); + switch (i_params->dmd1_rslts.standard) { + case STV0900_DVBS2_STANDARD: + i_params->dmd1_rslts.spectrum = stv0900_get_bits(i_params, F0900_P1_SPECINV_DEMOD); + if (i_params->dmd1_rslts.modcode <= STV0900_QPSK_910) + i_params->dmd1_rslts.modulation = STV0900_QPSK; + else if (i_params->dmd1_rslts.modcode <= STV0900_8PSK_910) + i_params->dmd1_rslts.modulation = STV0900_8PSK; + else if (i_params->dmd1_rslts.modcode <= STV0900_16APSK_910) + i_params->dmd1_rslts.modulation = STV0900_16APSK; + else if (i_params->dmd1_rslts.modcode <= STV0900_32APSK_910) + i_params->dmd1_rslts.modulation = STV0900_32APSK; + else + i_params->dmd1_rslts.modulation = STV0900_UNKNOWN; + break; + case STV0900_DVBS1_STANDARD: + case STV0900_DSS_STANDARD: + i_params->dmd1_rslts.spectrum = stv0900_get_bits(i_params, F0900_P1_IQINV); + i_params->dmd1_rslts.modulation = STV0900_QPSK; + break; + default: + break; + } + + if ((i_params->dmd1_srch_algo == STV0900_BLIND_SEARCH) || (i_params->dmd1_symbol_rate < 10000000)) { + offsetFreq = i_params->dmd1_rslts.frequency - i_params->tuner1_freq; + i_params->tuner1_freq = stv0900_get_tuner_freq(fe); + if (ABS(offsetFreq) <= ((i_params->dmd1_srch_range / 2000) + 500)) + range = STV0900_RANGEOK; + else + if (ABS(offsetFreq) <= (stv0900_carrier_width(i_params->dmd1_rslts.symbol_rate, i_params->dmd1_rslts.rolloff) / 2000)) + range = STV0900_RANGEOK; + else + range = STV0900_OUTOFRANGE; + + } else { + if (ABS(offsetFreq) <= ((i_params->dmd1_srch_range / 2000) + 500)) + range = STV0900_RANGEOK; + else + range = STV0900_OUTOFRANGE; + } + break; + case STV0900_DEMOD_2: + if (i_params->dmd2_srch_algo == STV0900_BLIND_SEARCH) { + timing = stv0900_read_reg(i_params, R0900_P2_TMGREG2); + i = 0; + stv0900_write_reg(i_params, R0900_P2_SFRSTEP, 0x5c); + + while ((i <= 50) && (timing != 0) && (timing != 0xff)) { + timing = stv0900_read_reg(i_params, R0900_P2_TMGREG2); + msleep(5); + i += 5; + } + } + + i_params->dmd2_rslts.standard = stv0900_get_standard(fe, demod); + i_params->dmd2_rslts.frequency = stv0900_get_tuner_freq(fe); + offsetFreq = stv0900_get_carr_freq(i_params, i_params->mclk, demod) / 1000; + i_params->dmd2_rslts.frequency += offsetFreq; + i_params->dmd2_rslts.symbol_rate = stv0900_get_symbol_rate(i_params, i_params->mclk, demod); + srate_offset = stv0900_get_timing_offst(i_params, i_params->dmd2_rslts.symbol_rate, demod); + i_params->dmd2_rslts.symbol_rate += srate_offset; + i_params->dmd2_rslts.fec = stv0900_get_vit_fec(i_params, demod); + i_params->dmd2_rslts.modcode = stv0900_get_bits(i_params, F0900_P2_DEMOD_MODCOD); + i_params->dmd2_rslts.pilot = stv0900_get_bits(i_params, F0900_P2_DEMOD_TYPE) & 0x01; + i_params->dmd2_rslts.frame_length = ((u32)stv0900_get_bits(i_params, F0900_P2_DEMOD_TYPE)) >> 1; + i_params->dmd2_rslts.rolloff = stv0900_get_bits(i_params, F0900_P2_ROLLOFF_STATUS); + switch (i_params->dmd2_rslts.standard) { + case STV0900_DVBS2_STANDARD: + i_params->dmd2_rslts.spectrum = stv0900_get_bits(i_params, F0900_P2_SPECINV_DEMOD); + if (i_params->dmd2_rslts.modcode <= STV0900_QPSK_910) + i_params->dmd2_rslts.modulation = STV0900_QPSK; + else if (i_params->dmd2_rslts.modcode <= STV0900_8PSK_910) + i_params->dmd2_rslts.modulation = STV0900_8PSK; + else if (i_params->dmd2_rslts.modcode <= STV0900_16APSK_910) + i_params->dmd2_rslts.modulation = STV0900_16APSK; + else if (i_params->dmd2_rslts.modcode <= STV0900_32APSK_910) + i_params->dmd2_rslts.modulation = STV0900_32APSK; + else + i_params->dmd2_rslts.modulation = STV0900_UNKNOWN; + break; + case STV0900_DVBS1_STANDARD: + case STV0900_DSS_STANDARD: + i_params->dmd2_rslts.spectrum = stv0900_get_bits(i_params, F0900_P2_IQINV); + i_params->dmd2_rslts.modulation = STV0900_QPSK; + break; + default: + break; + } + + if ((i_params->dmd2_srch_algo == STV0900_BLIND_SEARCH) || (i_params->dmd2_symbol_rate < 10000000)) { + offsetFreq = i_params->dmd2_rslts.frequency - i_params->tuner2_freq; + i_params->tuner2_freq = stv0900_get_tuner_freq(fe); + + if (ABS(offsetFreq) <= ((i_params->dmd2_srch_range / 2000) + 500)) + range = STV0900_RANGEOK; + else + if (ABS(offsetFreq) <= (stv0900_carrier_width(i_params->dmd2_rslts.symbol_rate, i_params->dmd2_rslts.rolloff) / 2000)) + range = STV0900_RANGEOK; + else + range = STV0900_OUTOFRANGE; + } else { + if (ABS(offsetFreq) <= ((i_params->dmd2_srch_range / 2000) + 500)) + range = STV0900_RANGEOK; + else + range = STV0900_OUTOFRANGE; + } + + break; + } + + return range; +} + +static enum fe_stv0900_signal_type stv0900_dvbs1_acq_workaround(struct dvb_frontend *fe) +{ + struct stv0900_state *state = fe->demodulator_priv; + struct stv0900_internal *i_params = state->internal; + enum fe_stv0900_demod_num demod = state->demod; + + s32 srate, demod_timeout, + fec_timeout, freq1, freq0; + enum fe_stv0900_signal_type signal_type = STV0900_NODATA;; + + switch (demod) { + case STV0900_DEMOD_1: + default: + i_params->dmd1_rslts.locked = FALSE; + if (stv0900_get_bits(i_params, F0900_P1_HEADER_MODE) == STV0900_DVBS_FOUND) { + srate = stv0900_get_symbol_rate(i_params, i_params->mclk, demod); + srate += stv0900_get_timing_offst(i_params, srate, demod); + if (i_params->dmd1_srch_algo == STV0900_BLIND_SEARCH) + stv0900_set_symbol_rate(i_params, i_params->mclk, srate, demod); + + stv0900_get_lock_timeout(&demod_timeout, &fec_timeout, srate, STV0900_WARM_START); + freq1 = stv0900_read_reg(i_params, R0900_P1_CFR2); + freq0 = stv0900_read_reg(i_params, R0900_P1_CFR1); + stv0900_write_bits(i_params, F0900_P1_CFR_AUTOSCAN, 0); + stv0900_write_bits(i_params, F0900_P1_SPECINV_CONTROL, STV0900_IQ_FORCE_SWAPPED); + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x1C); + stv0900_write_reg(i_params, R0900_P1_CFRINIT1, freq1); + stv0900_write_reg(i_params, R0900_P1_CFRINIT0, freq0); + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x18); + if (stv0900_wait_for_lock(i_params, demod, demod_timeout, fec_timeout) == TRUE) { + i_params->dmd1_rslts.locked = TRUE; + signal_type = stv0900_get_signal_params(fe); + stv0900_track_optimization(fe); + } else { + stv0900_write_bits(i_params, F0900_P1_SPECINV_CONTROL, STV0900_IQ_FORCE_NORMAL); + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x1c); + stv0900_write_reg(i_params, R0900_P1_CFRINIT1, freq1); + stv0900_write_reg(i_params, R0900_P1_CFRINIT0, freq0); + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x18); + if (stv0900_wait_for_lock(i_params, demod, demod_timeout, fec_timeout) == TRUE) { + i_params->dmd1_rslts.locked = TRUE; + signal_type = stv0900_get_signal_params(fe); + stv0900_track_optimization(fe); + } + + } + + } else + i_params->dmd1_rslts.locked = FALSE; + + break; + case STV0900_DEMOD_2: + i_params->dmd2_rslts.locked = FALSE; + if (stv0900_get_bits(i_params, F0900_P2_HEADER_MODE) == STV0900_DVBS_FOUND) { + srate = stv0900_get_symbol_rate(i_params, i_params->mclk, demod); + srate += stv0900_get_timing_offst(i_params, srate, demod); + + if (i_params->dmd2_srch_algo == STV0900_BLIND_SEARCH) + stv0900_set_symbol_rate(i_params, i_params->mclk, srate, demod); + + stv0900_get_lock_timeout(&demod_timeout, &fec_timeout, srate, STV0900_WARM_START); + freq1 = stv0900_read_reg(i_params, R0900_P2_CFR2); + freq0 = stv0900_read_reg(i_params, R0900_P2_CFR1); + stv0900_write_bits(i_params, F0900_P2_CFR_AUTOSCAN, 0); + stv0900_write_bits(i_params, F0900_P2_SPECINV_CONTROL, STV0900_IQ_FORCE_SWAPPED); + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x1C); + stv0900_write_reg(i_params, R0900_P2_CFRINIT1, freq1); + stv0900_write_reg(i_params, R0900_P2_CFRINIT0, freq0); + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x18); + + if (stv0900_wait_for_lock(i_params, demod, demod_timeout, fec_timeout) == TRUE) { + i_params->dmd2_rslts.locked = TRUE; + signal_type = stv0900_get_signal_params(fe); + stv0900_track_optimization(fe); + } else { + stv0900_write_bits(i_params, F0900_P2_SPECINV_CONTROL, STV0900_IQ_FORCE_NORMAL); + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x1c); + stv0900_write_reg(i_params, R0900_P2_CFRINIT1, freq1); + stv0900_write_reg(i_params, R0900_P2_CFRINIT0, freq0); + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x18); + + if (stv0900_wait_for_lock(i_params, demod, demod_timeout, fec_timeout) == TRUE) { + i_params->dmd2_rslts.locked = TRUE; + signal_type = stv0900_get_signal_params(fe); + stv0900_track_optimization(fe); + } + + } + + } else + i_params->dmd1_rslts.locked = FALSE; + + break; + } + + return signal_type; +} + +static u16 stv0900_blind_check_agc2_min_level(struct stv0900_internal *i_params, + enum fe_stv0900_demod_num demod) +{ + u32 minagc2level = 0xffff, + agc2level, + init_freq, freq_step; + + s32 i, j, nb_steps, direction; + + dprintk(KERN_INFO "%s\n", __func__); + + switch (demod) { + case STV0900_DEMOD_1: + default: + stv0900_write_reg(i_params, R0900_P1_AGC2REF, 0x38); + stv0900_write_bits(i_params, F0900_P1_SCAN_ENABLE, 1); + stv0900_write_bits(i_params, F0900_P1_CFR_AUTOSCAN, 1); + + stv0900_write_reg(i_params, R0900_P1_SFRUP1, 0x83); + stv0900_write_reg(i_params, R0900_P1_SFRUP0, 0xc0); + + stv0900_write_reg(i_params, R0900_P1_SFRLOW1, 0x82); + stv0900_write_reg(i_params, R0900_P1_SFRLOW0, 0xa0); + stv0900_write_reg(i_params, R0900_P1_DMDT0M, 0x0); + + stv0900_set_symbol_rate(i_params, i_params->mclk, 1000000, demod); + nb_steps = -1 + (i_params->dmd1_srch_range / 1000000); + nb_steps /= 2; + nb_steps = (2 * nb_steps) + 1; + + if (nb_steps < 0) + nb_steps = 1; + + direction = 1; + + freq_step = (1000000 << 8) / (i_params->mclk >> 8); + + init_freq = 0; + + for (i = 0; i < nb_steps; i++) { + if (direction > 0) + init_freq = init_freq + (freq_step * i); + else + init_freq = init_freq - (freq_step * i); + + direction *= -1; + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x5C); + stv0900_write_reg(i_params, R0900_P1_CFRINIT1, (init_freq >> 8) & 0xff); + stv0900_write_reg(i_params, R0900_P1_CFRINIT0, init_freq & 0xff); + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x58); + msleep(10); + agc2level = 0; + + for (j = 0; j < 10; j++) + agc2level += (stv0900_read_reg(i_params, R0900_P1_AGC2I1) << 8) + | stv0900_read_reg(i_params, R0900_P1_AGC2I0); + + agc2level /= 10; + + if (agc2level < minagc2level) + minagc2level = agc2level; + } + break; + case STV0900_DEMOD_2: + stv0900_write_reg(i_params, R0900_P2_AGC2REF, 0x38); + stv0900_write_bits(i_params, F0900_P2_SCAN_ENABLE, 1); + stv0900_write_bits(i_params, F0900_P2_CFR_AUTOSCAN, 1); + stv0900_write_reg(i_params, R0900_P2_SFRUP1, 0x83); + stv0900_write_reg(i_params, R0900_P2_SFRUP0, 0xc0); + stv0900_write_reg(i_params, R0900_P2_SFRLOW1, 0x82); + stv0900_write_reg(i_params, R0900_P2_SFRLOW0, 0xa0); + stv0900_write_reg(i_params, R0900_P2_DMDT0M, 0x0); + stv0900_set_symbol_rate(i_params, i_params->mclk, 1000000, demod); + nb_steps = -1 + (i_params->dmd2_srch_range / 1000000); + nb_steps /= 2; + nb_steps = (2 * nb_steps) + 1; + + if (nb_steps < 0) + nb_steps = 1; + + direction = 1; + freq_step = (1000000 << 8) / (i_params->mclk >> 8); + init_freq = 0; + for (i = 0; i < nb_steps; i++) { + if (direction > 0) + init_freq = init_freq + (freq_step * i); + else + init_freq = init_freq - (freq_step * i); + + direction *= -1; + + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x5C); + stv0900_write_reg(i_params, R0900_P2_CFRINIT1, (init_freq >> 8) & 0xff); + stv0900_write_reg(i_params, R0900_P2_CFRINIT0, init_freq & 0xff); + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x58); + + msleep(10); + agc2level = 0; + for (j = 0; j < 10; j++) + agc2level += (stv0900_read_reg(i_params, R0900_P2_AGC2I1) << 8) + | stv0900_read_reg(i_params, R0900_P2_AGC2I0); + + agc2level /= 10; + + if (agc2level < minagc2level) + minagc2level = agc2level; + } + break; + } + + return (u16)minagc2level; +} + +static u32 stv0900_search_srate_coarse(struct dvb_frontend *fe) +{ + struct stv0900_state *state = fe->demodulator_priv; + struct stv0900_internal *i_params = state->internal; + enum fe_stv0900_demod_num demod = state->demod; + int timingLock = FALSE; + s32 i, timingcpt = 0, + direction = 1, + nb_steps, + current_step = 0, + tuner_freq; + + u32 coarse_srate = 0, agc2_integr = 0, currier_step = 1200; + + switch (demod) { + case STV0900_DEMOD_1: + default: + stv0900_write_bits(i_params, F0900_P1_I2C_DEMOD_MODE, 0x1F); + stv0900_write_reg(i_params, R0900_P1_TMGCFG, 0x12); + stv0900_write_reg(i_params, R0900_P1_TMGTHRISE, 0xf0); + stv0900_write_reg(i_params, R0900_P1_TMGTHFALL, 0xe0); + stv0900_write_bits(i_params, F0900_P1_SCAN_ENABLE, 1); + stv0900_write_bits(i_params, F0900_P1_CFR_AUTOSCAN, 1); + stv0900_write_reg(i_params, R0900_P1_SFRUP1, 0x83); + stv0900_write_reg(i_params, R0900_P1_SFRUP0, 0xc0); + stv0900_write_reg(i_params, R0900_P1_SFRLOW1, 0x82); + stv0900_write_reg(i_params, R0900_P1_SFRLOW0, 0xa0); + stv0900_write_reg(i_params, R0900_P1_DMDT0M, 0x0); + stv0900_write_reg(i_params, R0900_P1_AGC2REF, 0x50); + + if (i_params->chip_id >= 0x20) { + stv0900_write_reg(i_params, R0900_P1_CARFREQ, 0x6a); + stv0900_write_reg(i_params, R0900_P1_SFRSTEP, 0x95); + } else { + stv0900_write_reg(i_params, R0900_P1_CARFREQ, 0xed); + stv0900_write_reg(i_params, R0900_P1_SFRSTEP, 0x73); + } + + if (i_params->dmd1_symbol_rate <= 2000000) + currier_step = 1000; + else if (i_params->dmd1_symbol_rate <= 5000000) + currier_step = 2000; + else if (i_params->dmd1_symbol_rate <= 12000000) + currier_step = 3000; + else + currier_step = 5000; + + nb_steps = -1 + ((i_params->dmd1_srch_range / 1000) / currier_step); + nb_steps /= 2; + nb_steps = (2 * nb_steps) + 1; + + if (nb_steps < 0) + nb_steps = 1; + + else if (nb_steps > 10) { + nb_steps = 11; + currier_step = (i_params->dmd1_srch_range / 1000) / 10; + } + + current_step = 0; + + direction = 1; + tuner_freq = i_params->tuner1_freq; + + while ((timingLock == FALSE) && (current_step < nb_steps)) { + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x5F); + stv0900_write_bits(i_params, F0900_P1_I2C_DEMOD_MODE, 0x0); + + msleep(50); + + for (i = 0; i < 10; i++) { + if (stv0900_get_bits(i_params, F0900_P1_TMGLOCK_QUALITY) >= 2) + timingcpt++; + + agc2_integr += (stv0900_read_reg(i_params, R0900_P1_AGC2I1) << 8) | stv0900_read_reg(i_params, R0900_P1_AGC2I0); + + } + + agc2_integr /= 10; + coarse_srate = stv0900_get_symbol_rate(i_params, i_params->mclk, demod); + current_step++; + direction *= -1; + + dprintk("lock: I2C_DEMOD_MODE_FIELD =0. Search started. tuner freq=%d agc2=0x%x srate_coarse=%d tmg_cpt=%d\n", tuner_freq, agc2_integr, coarse_srate, timingcpt); + + if ((timingcpt >= 5) && (agc2_integr < 0x1F00) && (coarse_srate < 55000000) && (coarse_srate > 850000)) { + timingLock = TRUE; + } + + else if (current_step < nb_steps) { + if (direction > 0) + tuner_freq += (current_step * currier_step); + else + tuner_freq -= (current_step * currier_step); + + stv0900_set_tuner(fe, tuner_freq, i_params->tuner1_bw); + } + } + + if (timingLock == FALSE) + coarse_srate = 0; + else + coarse_srate = stv0900_get_symbol_rate(i_params, i_params->mclk, demod); + break; + case STV0900_DEMOD_2: + stv0900_write_bits(i_params, F0900_P2_I2C_DEMOD_MODE, 0x1F); + stv0900_write_reg(i_params, R0900_P2_TMGCFG, 0x12); + stv0900_write_reg(i_params, R0900_P2_TMGTHRISE, 0xf0); + stv0900_write_reg(i_params, R0900_P2_TMGTHFALL, 0xe0); + stv0900_write_bits(i_params, F0900_P2_SCAN_ENABLE, 1); + stv0900_write_bits(i_params, F0900_P2_CFR_AUTOSCAN, 1); + stv0900_write_reg(i_params, R0900_P2_SFRUP1, 0x83); + stv0900_write_reg(i_params, R0900_P2_SFRUP0, 0xc0); + stv0900_write_reg(i_params, R0900_P2_SFRLOW1, 0x82); + stv0900_write_reg(i_params, R0900_P2_SFRLOW0, 0xa0); + stv0900_write_reg(i_params, R0900_P2_DMDT0M, 0x0); + stv0900_write_reg(i_params, R0900_P2_AGC2REF, 0x50); + + if (i_params->chip_id >= 0x20) { + stv0900_write_reg(i_params, R0900_P2_CARFREQ, 0x6a); + stv0900_write_reg(i_params, R0900_P2_SFRSTEP, 0x95); + } else { + stv0900_write_reg(i_params, R0900_P2_CARFREQ, 0xed); + stv0900_write_reg(i_params, R0900_P2_SFRSTEP, 0x73); + } + + if (i_params->dmd2_symbol_rate <= 2000000) + currier_step = 1000; + else if (i_params->dmd2_symbol_rate <= 5000000) + currier_step = 2000; + else if (i_params->dmd2_symbol_rate <= 12000000) + currier_step = 3000; + else + currier_step = 5000; + + + nb_steps = -1 + ((i_params->dmd2_srch_range / 1000) / currier_step); + nb_steps /= 2; + nb_steps = (2 * nb_steps) + 1; + + if (nb_steps < 0) + nb_steps = 1; + else if (nb_steps > 10) { + nb_steps = 11; + currier_step = (i_params->dmd2_srch_range / 1000) / 10; + } + + current_step = 0; + direction = 1; + tuner_freq = i_params->tuner2_freq; + + while ((timingLock == FALSE) && (current_step < nb_steps)) { + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x5F); + stv0900_write_bits(i_params, F0900_P2_I2C_DEMOD_MODE, 0x0); + + msleep(50); + timingcpt = 0; + + for (i = 0; i < 20; i++) { + if (stv0900_get_bits(i_params, F0900_P2_TMGLOCK_QUALITY) >= 2) + timingcpt++; + agc2_integr += (stv0900_read_reg(i_params, R0900_P2_AGC2I1) << 8) + | stv0900_read_reg(i_params, R0900_P2_AGC2I0); + } + + agc2_integr /= 20; + coarse_srate = stv0900_get_symbol_rate(i_params, i_params->mclk, demod); + if ((timingcpt >= 10) && (agc2_integr < 0x1F00) && (coarse_srate < 55000000) && (coarse_srate > 850000)) + timingLock = TRUE; + else { + current_step++; + direction *= -1; + + if (direction > 0) + tuner_freq += (current_step * currier_step); + else + tuner_freq -= (current_step * currier_step); + + stv0900_set_tuner(fe, tuner_freq, i_params->tuner2_bw); + } + } + + if (timingLock == FALSE) + coarse_srate = 0; + else + coarse_srate = stv0900_get_symbol_rate(i_params, i_params->mclk, demod); + break; + } + + return coarse_srate; +} + +static u32 stv0900_search_srate_fine(struct dvb_frontend *fe) +{ + struct stv0900_state *state = fe->demodulator_priv; + struct stv0900_internal *i_params = state->internal; + enum fe_stv0900_demod_num demod = state->demod; + u32 coarse_srate, + coarse_freq, + symb; + + coarse_srate = stv0900_get_symbol_rate(i_params, i_params->mclk, demod); + + switch (demod) { + case STV0900_DEMOD_1: + default: + coarse_freq = (stv0900_read_reg(i_params, R0900_P1_CFR2) << 8) + | stv0900_read_reg(i_params, R0900_P1_CFR1); + symb = 13 * (coarse_srate / 10); + + if (symb < i_params->dmd1_symbol_rate) + coarse_srate = 0; + else { + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x1F); + stv0900_write_reg(i_params, R0900_P1_TMGCFG2, 0x01); + stv0900_write_reg(i_params, R0900_P1_TMGTHRISE, 0x20); + stv0900_write_reg(i_params, R0900_P1_TMGTHFALL, 0x00); + stv0900_write_reg(i_params, R0900_P1_TMGCFG, 0xd2); + stv0900_write_bits(i_params, F0900_P1_CFR_AUTOSCAN, 0); + + if (i_params->chip_id >= 0x20) + stv0900_write_reg(i_params, R0900_P1_CARFREQ, 0x49); + else + stv0900_write_reg(i_params, R0900_P1_CARFREQ, 0xed); + + if (coarse_srate > 3000000) { + symb = 13 * (coarse_srate / 10); + symb = (symb / 1000) * 65536; + symb /= (i_params->mclk / 1000); + stv0900_write_reg(i_params, R0900_P1_SFRUP1, (symb >> 8) & 0x7F); + stv0900_write_reg(i_params, R0900_P1_SFRUP0, (symb & 0xFF)); + + symb = 10 * (coarse_srate / 13); + symb = (symb / 1000) * 65536; + symb /= (i_params->mclk / 1000); + + stv0900_write_reg(i_params, R0900_P1_SFRLOW1, (symb >> 8) & 0x7F); + stv0900_write_reg(i_params, R0900_P1_SFRLOW0, (symb & 0xFF)); + + symb = (coarse_srate / 1000) * 65536; + symb /= (i_params->mclk / 1000); + stv0900_write_reg(i_params, R0900_P1_SFRINIT1, (symb >> 8) & 0xFF); + stv0900_write_reg(i_params, R0900_P1_SFRINIT0, (symb & 0xFF)); + } else { + symb = 13 * (coarse_srate / 10); + symb = (symb / 100) * 65536; + symb /= (i_params->mclk / 100); + stv0900_write_reg(i_params, R0900_P1_SFRUP1, (symb >> 8) & 0x7F); + stv0900_write_reg(i_params, R0900_P1_SFRUP0, (symb & 0xFF)); + + symb = 10 * (coarse_srate / 14); + symb = (symb / 100) * 65536; + symb /= (i_params->mclk / 100); + stv0900_write_reg(i_params, R0900_P1_SFRLOW1, (symb >> 8) & 0x7F); + stv0900_write_reg(i_params, R0900_P1_SFRLOW0, (symb & 0xFF)); + + symb = (coarse_srate / 100) * 65536; + symb /= (i_params->mclk / 100); + stv0900_write_reg(i_params, R0900_P1_SFRINIT1, (symb >> 8) & 0xFF); + stv0900_write_reg(i_params, R0900_P1_SFRINIT0, (symb & 0xFF)); + } + + stv0900_write_reg(i_params, R0900_P1_DMDT0M, 0x20); + stv0900_write_reg(i_params, R0900_P1_CFRINIT1, (coarse_freq >> 8) & 0xff); + stv0900_write_reg(i_params, R0900_P1_CFRINIT0, coarse_freq & 0xff); + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x15); + } + break; + case STV0900_DEMOD_2: + coarse_freq = (stv0900_read_reg(i_params, R0900_P2_CFR2) << 8) + | stv0900_read_reg(i_params, R0900_P2_CFR1); + + symb = 13 * (coarse_srate / 10); + + if (symb < i_params->dmd2_symbol_rate) + coarse_srate = 0; + else { + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x1F); + stv0900_write_reg(i_params, R0900_P2_TMGCFG2, 0x01); + stv0900_write_reg(i_params, R0900_P2_TMGTHRISE, 0x20); + stv0900_write_reg(i_params, R0900_P2_TMGTHFALL, 0x00); + stv0900_write_reg(i_params, R0900_P2_TMGCFG, 0xd2); + stv0900_write_bits(i_params, F0900_P2_CFR_AUTOSCAN, 0); + + if (i_params->chip_id >= 0x20) + stv0900_write_reg(i_params, R0900_P2_CARFREQ, 0x49); + else + stv0900_write_reg(i_params, R0900_P2_CARFREQ, 0xed); + + if (coarse_srate > 3000000) { + symb = 13 * (coarse_srate / 10); + symb = (symb / 1000) * 65536; + symb /= (i_params->mclk / 1000); + stv0900_write_reg(i_params, R0900_P2_SFRUP1, (symb >> 8) & 0x7F); + stv0900_write_reg(i_params, R0900_P2_SFRUP0, (symb & 0xFF)); + + symb = 10 * (coarse_srate / 13); + symb = (symb / 1000) * 65536; + symb /= (i_params->mclk / 1000); + + stv0900_write_reg(i_params, R0900_P2_SFRLOW1, (symb >> 8) & 0x7F); + stv0900_write_reg(i_params, R0900_P2_SFRLOW0, (symb & 0xFF)); + + symb = (coarse_srate / 1000) * 65536; + symb /= (i_params->mclk / 1000); + stv0900_write_reg(i_params, R0900_P2_SFRINIT1, (symb >> 8) & 0xFF); + stv0900_write_reg(i_params, R0900_P2_SFRINIT0, (symb & 0xFF)); + } else { + symb = 13 * (coarse_srate / 10); + symb = (symb / 100) * 65536; + symb /= (i_params->mclk / 100); + stv0900_write_reg(i_params, R0900_P2_SFRUP1, (symb >> 8) & 0x7F); + stv0900_write_reg(i_params, R0900_P2_SFRUP0, (symb & 0xFF)); + + symb = 10 * (coarse_srate / 14); + symb = (symb / 100) * 65536; + symb /= (i_params->mclk / 100); + stv0900_write_reg(i_params, R0900_P2_SFRLOW1, (symb >> 8) & 0x7F); + stv0900_write_reg(i_params, R0900_P2_SFRLOW0, (symb & 0xFF)); + + symb = (coarse_srate / 100) * 65536; + symb /= (i_params->mclk / 100); + stv0900_write_reg(i_params, R0900_P2_SFRINIT1, (symb >> 8) & 0xFF); + stv0900_write_reg(i_params, R0900_P2_SFRINIT0, (symb & 0xFF)); + } + + stv0900_write_reg(i_params, R0900_P2_DMDT0M, 0x20); + stv0900_write_reg(i_params, R0900_P2_CFRINIT1, (coarse_freq >> 8) & 0xff); + stv0900_write_reg(i_params, R0900_P2_CFRINIT0, coarse_freq & 0xff); + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x15); + } + + break; + } + + return coarse_srate; +} + +static int stv0900_blind_search_algo(struct dvb_frontend *fe) +{ + struct stv0900_state *state = fe->demodulator_priv; + struct stv0900_internal *i_params = state->internal; + enum fe_stv0900_demod_num demod = state->demod; + u8 k_ref_tmg, k_ref_tmg_max, k_ref_tmg_min; + u32 coarse_srate; + int lock = FALSE, coarse_fail = FALSE; + s32 demod_timeout = 500, fec_timeout = 50, kref_tmg_reg, fail_cpt, i, agc2_overflow; + u16 agc2_integr; + u8 dstatus2; + + dprintk(KERN_INFO "%s\n", __func__); + + if (i_params->chip_id < 0x20) { + k_ref_tmg_max = 233; + k_ref_tmg_min = 143; + } else { + k_ref_tmg_max = 120; + k_ref_tmg_min = 30; + } + + agc2_integr = stv0900_blind_check_agc2_min_level(i_params, demod); + + if (agc2_integr > STV0900_BLIND_SEARCH_AGC2_TH) { + lock = FALSE; + + } else { + switch (demod) { + case STV0900_DEMOD_1: + default: + if (i_params->chip_id == 0x10) + stv0900_write_reg(i_params, R0900_P1_CORRELEXP, 0xAA); + + if (i_params->chip_id < 0x20) + stv0900_write_reg(i_params, R0900_P1_CARHDR, 0x55); + + stv0900_write_reg(i_params, R0900_P1_CARCFG, 0xC4); + stv0900_write_reg(i_params, R0900_P1_RTCS2, 0x44); + + if (i_params->chip_id >= 0x20) { + stv0900_write_reg(i_params, R0900_P1_EQUALCFG, 0x41); + stv0900_write_reg(i_params, R0900_P1_FFECFG, 0x41); + stv0900_write_reg(i_params, R0900_P1_VITSCALE, 0x82); + stv0900_write_reg(i_params, R0900_P1_VAVSRVIT, 0x0); + } + + kref_tmg_reg = R0900_P1_KREFTMG; + break; + case STV0900_DEMOD_2: + if (i_params->chip_id == 0x10) + stv0900_write_reg(i_params, R0900_P2_CORRELEXP, 0xAA); + + if (i_params->chip_id < 0x20) + stv0900_write_reg(i_params, R0900_P2_CARHDR, 0x55); + + stv0900_write_reg(i_params, R0900_P2_CARCFG, 0xC4); + stv0900_write_reg(i_params, R0900_P2_RTCS2, 0x44); + + if (i_params->chip_id >= 0x20) { + stv0900_write_reg(i_params, R0900_P2_EQUALCFG, 0x41); + stv0900_write_reg(i_params, R0900_P2_FFECFG, 0x41); + stv0900_write_reg(i_params, R0900_P2_VITSCALE, 0x82); + stv0900_write_reg(i_params, R0900_P2_VAVSRVIT, 0x0); + } + + kref_tmg_reg = R0900_P2_KREFTMG; + break; + } + + k_ref_tmg = k_ref_tmg_max; + + do { + stv0900_write_reg(i_params, kref_tmg_reg, k_ref_tmg); + if (stv0900_search_srate_coarse(fe) != 0) { + coarse_srate = stv0900_search_srate_fine(fe); + + if (coarse_srate != 0) { + stv0900_get_lock_timeout(&demod_timeout, &fec_timeout, coarse_srate, STV0900_BLIND_SEARCH); + lock = stv0900_get_demod_lock(i_params, demod, demod_timeout); + } else + lock = FALSE; + } else { + fail_cpt = 0; + agc2_overflow = 0; + + switch (demod) { + case STV0900_DEMOD_1: + default: + for (i = 0; i < 10; i++) { + agc2_integr = (stv0900_read_reg(i_params, R0900_P1_AGC2I1) << 8) + | stv0900_read_reg(i_params, R0900_P1_AGC2I0); + + if (agc2_integr >= 0xff00) + agc2_overflow++; + + dstatus2 = stv0900_read_reg(i_params, R0900_P1_DSTATUS2); + + if (((dstatus2 & 0x1) == 0x1) && ((dstatus2 >> 7) == 1)) + fail_cpt++; + } + break; + case STV0900_DEMOD_2: + for (i = 0; i < 10; i++) { + agc2_integr = (stv0900_read_reg(i_params, R0900_P2_AGC2I1) << 8) + | stv0900_read_reg(i_params, R0900_P2_AGC2I0); + + if (agc2_integr >= 0xff00) + agc2_overflow++; + + dstatus2 = stv0900_read_reg(i_params, R0900_P2_DSTATUS2); + + if (((dstatus2 & 0x1) == 0x1) && ((dstatus2 >> 7) == 1)) + fail_cpt++; + } + break; + } + + if ((fail_cpt > 7) || (agc2_overflow > 7)) + coarse_fail = TRUE; + + lock = FALSE; + } + k_ref_tmg -= 30; + } while ((k_ref_tmg >= k_ref_tmg_min) && (lock == FALSE) && (coarse_fail == FALSE)); + } + + return lock; +} + +static void stv0900_set_viterbi_acq(struct stv0900_internal *i_params, + enum fe_stv0900_demod_num demod) +{ + s32 vth_reg; + + dprintk(KERN_INFO "%s\n", __func__); + + dmd_reg(vth_reg, R0900_P1_VTH12, R0900_P2_VTH12); + + stv0900_write_reg(i_params, vth_reg++, 0x96); + stv0900_write_reg(i_params, vth_reg++, 0x64); + stv0900_write_reg(i_params, vth_reg++, 0x36); + stv0900_write_reg(i_params, vth_reg++, 0x23); + stv0900_write_reg(i_params, vth_reg++, 0x1E); + stv0900_write_reg(i_params, vth_reg++, 0x19); +} + +static void stv0900_set_search_standard(struct stv0900_internal *i_params, + enum fe_stv0900_demod_num demod) +{ + + int sstndrd; + + dprintk(KERN_INFO "%s\n", __func__); + + sstndrd = i_params->dmd1_srch_standard; + if (demod == 1) + sstndrd = i_params->dmd2_srch_stndrd; + + switch (sstndrd) { + case STV0900_SEARCH_DVBS1: + dprintk("Search Standard = DVBS1\n"); + break; + case STV0900_SEARCH_DSS: + dprintk("Search Standard = DSS\n"); + case STV0900_SEARCH_DVBS2: + break; + dprintk("Search Standard = DVBS2\n"); + case STV0900_AUTO_SEARCH: + default: + dprintk("Search Standard = AUTO\n"); + break; + } + + switch (demod) { + case STV0900_DEMOD_1: + default: + switch (i_params->dmd1_srch_standard) { + case STV0900_SEARCH_DVBS1: + case STV0900_SEARCH_DSS: + stv0900_write_bits(i_params, F0900_P1_DVBS1_ENABLE, 1); + stv0900_write_bits(i_params, F0900_P1_DVBS2_ENABLE, 0); + + stv0900_write_bits(i_params, F0900_STOP_CLKVIT1, 0); + stv0900_write_reg(i_params, R0900_P1_ACLC, 0x1a); + stv0900_write_reg(i_params, R0900_P1_BCLC, 0x09); + stv0900_write_reg(i_params, R0900_P1_CAR2CFG, 0x22); + + stv0900_set_viterbi_acq(i_params, demod); + stv0900_set_viterbi_standard(i_params, + i_params->dmd1_srch_standard, + i_params->dmd1_fec, demod); + + break; + case STV0900_SEARCH_DVBS2: + stv0900_write_bits(i_params, F0900_P1_DVBS1_ENABLE, 0); + stv0900_write_bits(i_params, F0900_P1_DVBS2_ENABLE, 0); + stv0900_write_bits(i_params, F0900_P1_DVBS1_ENABLE, 1); + stv0900_write_bits(i_params, F0900_P1_DVBS2_ENABLE, 1); + stv0900_write_bits(i_params, F0900_STOP_CLKVIT1, 1); + stv0900_write_reg(i_params, R0900_P1_ACLC, 0x1a); + stv0900_write_reg(i_params, R0900_P1_BCLC, 0x09); + stv0900_write_reg(i_params, R0900_P1_CAR2CFG, 0x26); + if (i_params->demod_mode != STV0900_SINGLE) { + if (i_params->chip_id <= 0x11) + stv0900_stop_all_s2_modcod(i_params, demod); + else + stv0900_activate_s2_modcode(i_params, demod); + + } else + stv0900_activate_s2_modcode_single(i_params, demod); + + stv0900_set_viterbi_tracq(i_params, demod); + + break; + case STV0900_AUTO_SEARCH: + default: + stv0900_write_bits(i_params, F0900_P1_DVBS1_ENABLE, 0); + stv0900_write_bits(i_params, F0900_P1_DVBS2_ENABLE, 0); + stv0900_write_bits(i_params, F0900_P1_DVBS1_ENABLE, 1); + stv0900_write_bits(i_params, F0900_P1_DVBS2_ENABLE, 1); + stv0900_write_bits(i_params, F0900_STOP_CLKVIT1, 0); + stv0900_write_reg(i_params, R0900_P1_ACLC, 0x1a); + stv0900_write_reg(i_params, R0900_P1_BCLC, 0x09); + stv0900_write_reg(i_params, R0900_P1_CAR2CFG, 0x26); + if (i_params->demod_mode != STV0900_SINGLE) { + if (i_params->chip_id <= 0x11) + stv0900_stop_all_s2_modcod(i_params, demod); + else + stv0900_activate_s2_modcode(i_params, demod); + + } else + stv0900_activate_s2_modcode_single(i_params, demod); + + if (i_params->dmd1_symbol_rate >= 2000000) + stv0900_set_viterbi_acq(i_params, demod); + else + stv0900_set_viterbi_tracq(i_params, demod); + + stv0900_set_viterbi_standard(i_params, i_params->dmd1_srch_standard, i_params->dmd1_fec, demod); + + break; + } + break; + case STV0900_DEMOD_2: + switch (i_params->dmd2_srch_stndrd) { + case STV0900_SEARCH_DVBS1: + case STV0900_SEARCH_DSS: + stv0900_write_bits(i_params, F0900_P2_DVBS1_ENABLE, 1); + stv0900_write_bits(i_params, F0900_P2_DVBS2_ENABLE, 0); + stv0900_write_bits(i_params, F0900_STOP_CLKVIT2, 0); + stv0900_write_reg(i_params, R0900_P2_ACLC, 0x1a); + stv0900_write_reg(i_params, R0900_P2_BCLC, 0x09); + stv0900_write_reg(i_params, R0900_P2_CAR2CFG, 0x22); + stv0900_set_viterbi_acq(i_params, demod); + stv0900_set_viterbi_standard(i_params, i_params->dmd2_srch_stndrd, i_params->dmd2_fec, demod); + break; + case STV0900_SEARCH_DVBS2: + stv0900_write_bits(i_params, F0900_P2_DVBS1_ENABLE, 0); + stv0900_write_bits(i_params, F0900_P2_DVBS2_ENABLE, 0); + stv0900_write_bits(i_params, F0900_P2_DVBS1_ENABLE, 1); + stv0900_write_bits(i_params, F0900_P2_DVBS2_ENABLE, 1); + stv0900_write_bits(i_params, F0900_STOP_CLKVIT2, 1); + stv0900_write_reg(i_params, R0900_P2_ACLC, 0x1a); + stv0900_write_reg(i_params, R0900_P2_BCLC, 0x09); + stv0900_write_reg(i_params, R0900_P2_CAR2CFG, 0x26); + if (i_params->demod_mode != STV0900_SINGLE) + stv0900_activate_s2_modcode(i_params, demod); + else + stv0900_activate_s2_modcode_single(i_params, demod); + + stv0900_set_viterbi_tracq(i_params, demod); + break; + case STV0900_AUTO_SEARCH: + default: + stv0900_write_bits(i_params, F0900_P2_DVBS1_ENABLE, 0); + stv0900_write_bits(i_params, F0900_P2_DVBS2_ENABLE, 0); + stv0900_write_bits(i_params, F0900_P2_DVBS1_ENABLE, 1); + stv0900_write_bits(i_params, F0900_P2_DVBS2_ENABLE, 1); + stv0900_write_bits(i_params, F0900_STOP_CLKVIT2, 0); + stv0900_write_reg(i_params, R0900_P2_ACLC, 0x1a); + stv0900_write_reg(i_params, R0900_P2_BCLC, 0x09); + stv0900_write_reg(i_params, R0900_P2_CAR2CFG, 0x26); + if (i_params->demod_mode != STV0900_SINGLE) + stv0900_activate_s2_modcode(i_params, demod); + else + stv0900_activate_s2_modcode_single(i_params, demod); + + if (i_params->dmd2_symbol_rate >= 2000000) + stv0900_set_viterbi_acq(i_params, demod); + else + stv0900_set_viterbi_tracq(i_params, demod); + + stv0900_set_viterbi_standard(i_params, i_params->dmd2_srch_stndrd, i_params->dmd2_fec, demod); + + break; + } + + break; + } +} + +enum fe_stv0900_signal_type stv0900_algo(struct dvb_frontend *fe) +{ + struct stv0900_state *state = fe->demodulator_priv; + struct stv0900_internal *i_params = state->internal; + enum fe_stv0900_demod_num demod = state->demod; + + s32 demod_timeout = 500, fec_timeout = 50, stream_merger_field; + + int lock = FALSE, low_sr = FALSE; + + enum fe_stv0900_signal_type signal_type = STV0900_NOCARRIER; + enum fe_stv0900_search_algo algo; + int no_signal = FALSE; + + dprintk(KERN_INFO "%s\n", __func__); + + switch (demod) { + case STV0900_DEMOD_1: + default: + algo = i_params->dmd1_srch_algo; + + stv0900_write_bits(i_params, F0900_P1_RST_HWARE, 1); + stream_merger_field = F0900_P1_RST_HWARE; + + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x5C); + + if (i_params->chip_id >= 0x20) + stv0900_write_reg(i_params, R0900_P1_CORRELABS, 0x9e); + else + stv0900_write_reg(i_params, R0900_P1_CORRELABS, 0x88); + + stv0900_get_lock_timeout(&demod_timeout, &fec_timeout, i_params->dmd1_symbol_rate, i_params->dmd1_srch_algo); + + if (i_params->dmd1_srch_algo == STV0900_BLIND_SEARCH) { + i_params->tuner1_bw = 2 * 36000000; + + stv0900_write_reg(i_params, R0900_P1_TMGCFG2, 0x00); + stv0900_write_reg(i_params, R0900_P1_CORRELMANT, 0x70); + + stv0900_set_symbol_rate(i_params, i_params->mclk, 1000000, demod); + } else { + stv0900_write_reg(i_params, R0900_P1_DMDT0M, 0x20); + stv0900_write_reg(i_params, R0900_P1_TMGCFG, 0xd2); + + if (i_params->dmd1_symbol_rate < 2000000) + stv0900_write_reg(i_params, R0900_P1_CORRELMANT, 0x63); + else + stv0900_write_reg(i_params, R0900_P1_CORRELMANT, 0x70); + + stv0900_write_reg(i_params, R0900_P1_AGC2REF, 0x38); + if (i_params->chip_id >= 0x20) { + stv0900_write_reg(i_params, R0900_P1_KREFTMG, 0x5a); + + if (i_params->dmd1_srch_algo == STV0900_COLD_START) + i_params->tuner1_bw = (15 * (stv0900_carrier_width(i_params->dmd1_symbol_rate, i_params->rolloff) + 10000000)) / 10; + else if (i_params->dmd1_srch_algo == STV0900_WARM_START) + i_params->tuner1_bw = stv0900_carrier_width(i_params->dmd1_symbol_rate, i_params->rolloff) + 10000000; + } else { + stv0900_write_reg(i_params, R0900_P1_KREFTMG, 0xc1); + i_params->tuner1_bw = (15 * (stv0900_carrier_width(i_params->dmd1_symbol_rate, i_params->rolloff) + 10000000)) / 10; + } + + stv0900_write_reg(i_params, R0900_P1_TMGCFG2, 0x01); + + stv0900_set_symbol_rate(i_params, i_params->mclk, i_params->dmd1_symbol_rate, demod); + stv0900_set_max_symbol_rate(i_params, i_params->mclk, i_params->dmd1_symbol_rate, demod); + stv0900_set_min_symbol_rate(i_params, i_params->mclk, i_params->dmd1_symbol_rate, demod); + if (i_params->dmd1_symbol_rate >= 10000000) + low_sr = FALSE; + else + low_sr = TRUE; + + } + + stv0900_set_tuner(fe, i_params->tuner1_freq, i_params->tuner1_bw); + + stv0900_write_bits(i_params, F0900_P1_SPECINV_CONTROL, i_params->dmd1_srch_iq_inv); + stv0900_write_bits(i_params, F0900_P1_MANUAL_ROLLOFF, 1); + + stv0900_set_search_standard(i_params, demod); + + if (i_params->dmd1_srch_algo != STV0900_BLIND_SEARCH) + stv0900_start_search(i_params, demod); + break; + case STV0900_DEMOD_2: + algo = i_params->dmd2_srch_algo; + + stv0900_write_bits(i_params, F0900_P2_RST_HWARE, 1); + + stream_merger_field = F0900_P2_RST_HWARE; + + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x5C); + + if (i_params->chip_id >= 0x20) + stv0900_write_reg(i_params, R0900_P2_CORRELABS, 0x9e); + else + stv0900_write_reg(i_params, R0900_P2_CORRELABS, 0x88); + + stv0900_get_lock_timeout(&demod_timeout, &fec_timeout, i_params->dmd2_symbol_rate, i_params->dmd2_srch_algo); + + if (i_params->dmd2_srch_algo == STV0900_BLIND_SEARCH) { + i_params->tuner2_bw = 2 * 36000000; + + stv0900_write_reg(i_params, R0900_P2_TMGCFG2, 0x00); + stv0900_write_reg(i_params, R0900_P2_CORRELMANT, 0x70); + + stv0900_set_symbol_rate(i_params, i_params->mclk, 1000000, demod); + } else { + stv0900_write_reg(i_params, R0900_P2_DMDT0M, 0x20); + stv0900_write_reg(i_params, R0900_P2_TMGCFG, 0xd2); + + if (i_params->dmd2_symbol_rate < 2000000) + stv0900_write_reg(i_params, R0900_P2_CORRELMANT, 0x63); + else + stv0900_write_reg(i_params, R0900_P2_CORRELMANT, 0x70); + + if (i_params->dmd2_symbol_rate >= 10000000) + stv0900_write_reg(i_params, R0900_P2_AGC2REF, 0x38); + else + stv0900_write_reg(i_params, R0900_P2_AGC2REF, 0x60); + + if (i_params->chip_id >= 0x20) { + stv0900_write_reg(i_params, R0900_P2_KREFTMG, 0x5a); + + if (i_params->dmd2_srch_algo == STV0900_COLD_START) + i_params->tuner2_bw = (15 * (stv0900_carrier_width(i_params->dmd2_symbol_rate, + i_params->rolloff) + 10000000)) / 10; + else if (i_params->dmd2_srch_algo == STV0900_WARM_START) + i_params->tuner2_bw = stv0900_carrier_width(i_params->dmd2_symbol_rate, + i_params->rolloff) + 10000000; + } else { + stv0900_write_reg(i_params, R0900_P2_KREFTMG, 0xc1); + i_params->tuner2_bw = (15 * (stv0900_carrier_width(i_params->dmd2_symbol_rate, + i_params->rolloff) + 10000000)) / 10; + } + + stv0900_write_reg(i_params, R0900_P2_TMGCFG2, 0x01); + + stv0900_set_symbol_rate(i_params, i_params->mclk, i_params->dmd2_symbol_rate, demod); + stv0900_set_max_symbol_rate(i_params, i_params->mclk, i_params->dmd2_symbol_rate, demod); + stv0900_set_min_symbol_rate(i_params, i_params->mclk, i_params->dmd2_symbol_rate, demod); + if (i_params->dmd2_symbol_rate >= 10000000) + low_sr = FALSE; + else + low_sr = TRUE; + + } + + stv0900_set_tuner(fe, i_params->tuner2_freq, i_params->tuner2_bw); + + stv0900_write_bits(i_params, F0900_P2_SPECINV_CONTROL, i_params->dmd2_srch_iq_inv); + stv0900_write_bits(i_params, F0900_P2_MANUAL_ROLLOFF, 1); + + stv0900_set_search_standard(i_params, demod); + + if (i_params->dmd2_srch_algo != STV0900_BLIND_SEARCH) + stv0900_start_search(i_params, demod); + break; + } + + if (i_params->chip_id == 0x12) { + stv0900_write_bits(i_params, stream_merger_field, 0); + msleep(3); + stv0900_write_bits(i_params, stream_merger_field, 1); + stv0900_write_bits(i_params, stream_merger_field, 0); + } + + if (algo == STV0900_BLIND_SEARCH) + lock = stv0900_blind_search_algo(fe); + else if (algo == STV0900_COLD_START) + lock = stv0900_get_demod_cold_lock(fe, demod_timeout); + else if (algo == STV0900_WARM_START) + lock = stv0900_get_demod_lock(i_params, demod, demod_timeout); + + if ((lock == FALSE) && (algo == STV0900_COLD_START)) { + if (low_sr == FALSE) { + if (stv0900_check_timing_lock(i_params, demod) == TRUE) + lock = stv0900_sw_algo(i_params, demod); + } + } + + if (lock == TRUE) + signal_type = stv0900_get_signal_params(fe); + + if ((lock == TRUE) && (signal_type == STV0900_RANGEOK)) { + stv0900_track_optimization(fe); + if (i_params->chip_id <= 0x11) { + if ((stv0900_get_standard(fe, STV0900_DEMOD_1) == STV0900_DVBS1_STANDARD) && (stv0900_get_standard(fe, STV0900_DEMOD_2) == STV0900_DVBS1_STANDARD)) { + msleep(20); + stv0900_write_bits(i_params, stream_merger_field, 0); + } else { + stv0900_write_bits(i_params, stream_merger_field, 0); + msleep(3); + stv0900_write_bits(i_params, stream_merger_field, 1); + stv0900_write_bits(i_params, stream_merger_field, 0); + } + } else if (i_params->chip_id == 0x20) { + stv0900_write_bits(i_params, stream_merger_field, 0); + msleep(3); + stv0900_write_bits(i_params, stream_merger_field, 1); + stv0900_write_bits(i_params, stream_merger_field, 0); + } + + if (stv0900_wait_for_lock(i_params, demod, fec_timeout, fec_timeout) == TRUE) { + lock = TRUE; + switch (demod) { + case STV0900_DEMOD_1: + default: + i_params->dmd1_rslts.locked = TRUE; + if (i_params->dmd1_rslts.standard == STV0900_DVBS2_STANDARD) { + stv0900_set_dvbs2_rolloff(i_params, demod); + stv0900_write_reg(i_params, R0900_P1_PDELCTRL2, 0x40); + stv0900_write_reg(i_params, R0900_P1_PDELCTRL2, 0); + stv0900_write_reg(i_params, R0900_P1_ERRCTRL1, 0x67); + } else { + stv0900_write_reg(i_params, R0900_P1_ERRCTRL1, 0x75); + } + + stv0900_write_reg(i_params, R0900_P1_FBERCPT4, 0); + stv0900_write_reg(i_params, R0900_P1_ERRCTRL2, 0xc1); + break; + case STV0900_DEMOD_2: + i_params->dmd2_rslts.locked = TRUE; + + if (i_params->dmd2_rslts.standard == STV0900_DVBS2_STANDARD) { + stv0900_set_dvbs2_rolloff(i_params, demod); + stv0900_write_reg(i_params, R0900_P2_PDELCTRL2, 0x60); + stv0900_write_reg(i_params, R0900_P2_PDELCTRL2, 0x20); + stv0900_write_reg(i_params, R0900_P2_ERRCTRL1, 0x67); + } else { + stv0900_write_reg(i_params, R0900_P2_ERRCTRL1, 0x75); + } + + stv0900_write_reg(i_params, R0900_P2_FBERCPT4, 0); + + stv0900_write_reg(i_params, R0900_P2_ERRCTRL2, 0xc1); + break; + } + } else { + lock = FALSE; + signal_type = STV0900_NODATA; + no_signal = stv0900_check_signal_presence(i_params, demod); + + switch (demod) { + case STV0900_DEMOD_1: + default: + i_params->dmd1_rslts.locked = FALSE; + break; + case STV0900_DEMOD_2: + i_params->dmd2_rslts.locked = FALSE; + break; + } + } + } + + if ((signal_type == STV0900_NODATA) && (no_signal == FALSE)) { + switch (demod) { + case STV0900_DEMOD_1: + default: + if (i_params->chip_id <= 0x11) { + if ((stv0900_get_bits(i_params, F0900_P1_HEADER_MODE) == STV0900_DVBS_FOUND) && + (i_params->dmd1_srch_iq_inv <= STV0900_IQ_AUTO_NORMAL_FIRST)) + signal_type = stv0900_dvbs1_acq_workaround(fe); + } else + i_params->dmd1_rslts.locked = FALSE; + + break; + case STV0900_DEMOD_2: + if (i_params->chip_id <= 0x11) { + if ((stv0900_get_bits(i_params, F0900_P2_HEADER_MODE) == STV0900_DVBS_FOUND) && + (i_params->dmd2_srch_iq_inv <= STV0900_IQ_AUTO_NORMAL_FIRST)) + signal_type = stv0900_dvbs1_acq_workaround(fe); + } else + i_params->dmd2_rslts.locked = FALSE; + break; + } + } + + return signal_type; +} + |