--- /dev/null
+/*
+ * 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"
+
+s32 shiftx(s32 x, int demod, s32 shift)
+{
+ if (demod == 1)
+ return x - shift;
+
+ return x;
+}
+
+int stv0900_check_signal_presence(struct stv0900_internal *intp,
+ enum fe_stv0900_demod_num demod)
+{
+ s32 carr_offset,
+ agc2_integr,
+ max_carrier;
+
+ int no_signal = FALSE;
+
+ carr_offset = (stv0900_read_reg(intp, CFR2) << 8)
+ | stv0900_read_reg(intp, CFR1);
+ carr_offset = ge2comp(carr_offset, 16);
+ agc2_integr = (stv0900_read_reg(intp, AGC2I1) << 8)
+ | stv0900_read_reg(intp, AGC2I0);
+ max_carrier = intp->srch_range[demod] / 1000;
+
+ max_carrier += (max_carrier / 10);
+ max_carrier = 65536 * (max_carrier / 2);
+ max_carrier /= intp->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;
+
+ return no_signal;
+}
+
+static void stv0900_get_sw_loop_params(struct stv0900_internal *intp,
+ 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;
+
+ srate = intp->symbol_rate[demod];
+ max_carrier = intp->srch_range[demod] / 1000;
+ max_carrier += max_carrier / 10;
+ standard = intp->srch_standard[demod];
+
+ max_carrier = 65536 * (max_carrier / 2);
+ max_carrier /= intp->mclk / 1000;
+
+ if (max_carrier > 0x4000)
+ max_carrier = 0x4000;
+
+ freq_inc = srate;
+ freq_inc /= intp->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 *intp,
+ s32 FreqIncr, s32 Timeout, int zigzag,
+ s32 MaxStep, enum fe_stv0900_demod_num demod)
+{
+ int no_signal,
+ lock = FALSE;
+ s32 stepCpt,
+ freqOffset,
+ max_carrier;
+
+ max_carrier = intp->srch_range[demod] / 1000;
+ max_carrier += (max_carrier / 10);
+
+ max_carrier = 65536 * (max_carrier / 2);
+ max_carrier /= intp->mclk / 1000;
+
+ if (max_carrier > 0x4000)
+ max_carrier = 0x4000;
+
+ if (zigzag == TRUE)
+ freqOffset = 0;
+ else
+ freqOffset = -max_carrier + FreqIncr;
+
+ stepCpt = 0;
+
+ do {
+ stv0900_write_reg(intp, DMDISTATE, 0x1c);
+ stv0900_write_reg(intp, CFRINIT1, (freqOffset / 256) & 0xff);
+ stv0900_write_reg(intp, CFRINIT0, freqOffset & 0xff);
+ stv0900_write_reg(intp, DMDISTATE, 0x18);
+ stv0900_write_bits(intp, ALGOSWRST, 1);
+
+ if (intp->chip_id == 0x12) {
+ stv0900_write_bits(intp, RST_HWARE, 1);
+ stv0900_write_bits(intp, RST_HWARE, 0);
+ }
+
+ if (zigzag == TRUE) {
+ if (freqOffset >= 0)
+ freqOffset = -freqOffset - 2 * FreqIncr;
+ else
+ freqOffset = -freqOffset;
+ } else
+ freqOffset += + 2 * FreqIncr;
+
+ stepCpt++;
+ lock = stv0900_get_demod_lock(intp, demod, Timeout);
+ no_signal = stv0900_check_signal_presence(intp, demod);
+
+ } while ((lock == FALSE)
+ && (no_signal == FALSE)
+ && ((freqOffset - FreqIncr) < max_carrier)
+ && ((freqOffset + FreqIncr) > -max_carrier)
+ && (stepCpt < MaxStep));
+
+ stv0900_write_bits(intp, ALGOSWRST, 0);
+
+ return lock;
+}
+
+static int stv0900_sw_algo(struct stv0900_internal *intp,
+ enum fe_stv0900_demod_num demod)
+{
+ int lock = FALSE,
+ no_signal,
+ zigzag;
+ s32 s2fw,
+ fqc_inc,
+ sft_stp_tout,
+ trial_cntr,
+ max_steps;
+
+ stv0900_get_sw_loop_params(intp, &fqc_inc, &sft_stp_tout,
+ &max_steps, demod);
+ switch (intp->srch_standard[demod]) {
+ case STV0900_SEARCH_DVBS1:
+ case STV0900_SEARCH_DSS:
+ if (intp->chip_id >= 0x20)
+ stv0900_write_reg(intp, CARFREQ, 0x3b);
+ else
+ stv0900_write_reg(intp, CARFREQ, 0xef);
+
+ stv0900_write_reg(intp, DMDCFGMD, 0x49);
+ zigzag = FALSE;
+ break;
+ case STV0900_SEARCH_DVBS2:
+ if (intp->chip_id >= 0x20)
+ stv0900_write_reg(intp, CORRELABS, 0x79);
+ else
+ stv0900_write_reg(intp, CORRELABS, 0x68);
+
+ stv0900_write_reg(intp, DMDCFGMD, 0x89);
+
+ zigzag = TRUE;
+ break;
+ case STV0900_AUTO_SEARCH:
+ default:
+ if (intp->chip_id >= 0x20) {
+ stv0900_write_reg(intp, CARFREQ, 0x3b);
+ stv0900_write_reg(intp, CORRELABS, 0x79);
+ } else {
+ stv0900_write_reg(intp, CARFREQ, 0xef);
+ stv0900_write_reg(intp, CORRELABS, 0x68);
+ }
+
+ stv0900_write_reg(intp, DMDCFGMD, 0xc9);
+ zigzag = FALSE;
+ break;
+ }
+
+ trial_cntr = 0;
+ do {
+ lock = stv0900_search_carr_sw_loop(intp,
+ fqc_inc,
+ sft_stp_tout,
+ zigzag,
+ max_steps,
+ demod);
+ no_signal = stv0900_check_signal_presence(intp, demod);
+ trial_cntr++;
+ if ((lock == TRUE)
+ || (no_signal == TRUE)
+ || (trial_cntr == 2)) {
+
+ if (intp->chip_id >= 0x20) {
+ stv0900_write_reg(intp, CARFREQ, 0x49);
+ stv0900_write_reg(intp, CORRELABS, 0x9e);
+ } else {
+ stv0900_write_reg(intp, CARFREQ, 0xed);
+ stv0900_write_reg(intp, CORRELABS, 0x88);
+ }
+
+ if ((stv0900_get_bits(intp, HEADER_MODE) ==
+ STV0900_DVBS2_FOUND) &&
+ (lock == TRUE)) {
+ msleep(sft_stp_tout);
+ s2fw = stv0900_get_bits(intp, FLYWHEEL_CPT);
+
+ if (s2fw < 0xd) {
+ msleep(sft_stp_tout);
+ s2fw = stv0900_get_bits(intp,
+ FLYWHEEL_CPT);
+ }
+
+ if (s2fw < 0xd) {
+ lock = FALSE;
+
+ if (trial_cntr < 2) {
+ if (intp->chip_id >= 0x20)
+ stv0900_write_reg(intp,
+ CORRELABS,
+ 0x79);
+ else
+ stv0900_write_reg(intp,
+ CORRELABS,
+ 0x68);
+
+ stv0900_write_reg(intp,
+ DMDCFGMD,
+ 0x89);
+ }
+ }
+ }
+ }
+
+ } while ((lock == FALSE)
+ && (trial_cntr < 2)
+ && (no_signal == FALSE));
+
+ return lock;
+}
+
+static u32 stv0900_get_symbol_rate(struct stv0900_internal *intp,
+ u32 mclk,
+ enum fe_stv0900_demod_num demod)
+{
+ s32 rem1, rem2, intval1, intval2, srate;
+
+ srate = (stv0900_get_bits(intp, SYMB_FREQ3) << 24) +
+ (stv0900_get_bits(intp, SYMB_FREQ2) << 16) +
+ (stv0900_get_bits(intp, SYMB_FREQ1) << 8) +
+ (stv0900_get_bits(intp, SYMB_FREQ0));
+ dprintk("lock: srate=%d r0=0x%x r1=0x%x r2=0x%x r3=0x%x \n",
+ srate, stv0900_get_bits(intp, SYMB_FREQ0),
+ stv0900_get_bits(intp, SYMB_FREQ1),
+ stv0900_get_bits(intp, SYMB_FREQ2),
+ stv0900_get_bits(intp, SYMB_FREQ3));
+
+ 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 *intp,
+ u32 mclk, u32 srate,
+ enum fe_stv0900_demod_num demod)
+{
+ u32 symb;
+
+ dprintk("%s: Mclk %d, SR %d, Dmd %d\n", __func__, mclk,
+ srate, demod);
+
+ 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(intp, SFRINIT1, (symb >> 8) & 0x7f);
+ stv0900_write_reg(intp, SFRINIT1 + 1, (symb & 0xff));
+}
+
+static void stv0900_set_max_symbol_rate(struct stv0900_internal *intp,
+ u32 mclk, u32 srate,
+ enum fe_stv0900_demod_num demod)
+{
+ u32 symb;
+
+ 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(intp, SFRUP1, (symb >> 8) & 0x7f);
+ stv0900_write_reg(intp, SFRUP1 + 1, (symb & 0xff));
+ } else {
+ stv0900_write_reg(intp, SFRUP1, 0x7f);
+ stv0900_write_reg(intp, SFRUP1 + 1, 0xff);
+ }
+}
+
+static void stv0900_set_min_symbol_rate(struct stv0900_internal *intp,
+ u32 mclk, u32 srate,
+ enum fe_stv0900_demod_num demod)
+{
+ u32 symb;
+
+ 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(intp, SFRLOW1, (symb >> 8) & 0xff);
+ stv0900_write_reg(intp, SFRLOW1 + 1, (symb & 0xff));
+}
+
+static s32 stv0900_get_timing_offst(struct stv0900_internal *intp,
+ u32 srate,
+ enum fe_stv0900_demod_num demod)
+{
+ s32 timingoffset;
+
+
+ timingoffset = (stv0900_read_reg(intp, TMGREG2) << 16) +
+ (stv0900_read_reg(intp, TMGREG2 + 1) << 8) +
+ (stv0900_read_reg(intp, TMGREG2 + 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 *intp,
+ enum fe_stv0900_demod_num demod)
+{
+ s32 rolloff;
+
+ if (intp->chip_id == 0x10) {
+ stv0900_write_bits(intp, MANUALSX_ROLLOFF, 1);
+ rolloff = stv0900_read_reg(intp, MATSTR1) & 0x03;
+ stv0900_write_bits(intp, ROLLOFF_CONTROL, rolloff);
+ } else if (intp->chip_id <= 0x20)
+ stv0900_write_bits(intp, MANUALSX_ROLLOFF, 0);
+ else /* cut 3.0 */
+ stv0900_write_bits(intp, MANUALS2_ROLLOFF, 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 *intp,
+ enum fe_stv0900_demod_num demod)
+{
+ int timingLock = FALSE;
+ s32 i,
+ timingcpt = 0;
+ u8 car_freq,
+ tmg_th_high,
+ tmg_th_low;
+
+ car_freq = stv0900_read_reg(intp, CARFREQ);
+ tmg_th_high = stv0900_read_reg(intp, TMGTHRISE);
+ tmg_th_low = stv0900_read_reg(intp, TMGTHFALL);
+ stv0900_write_reg(intp, TMGTHRISE, 0x20);
+ stv0900_write_reg(intp, TMGTHFALL, 0x0);
+ stv0900_write_bits(intp, CFR_AUTOSCAN, 0);
+ stv0900_write_reg(intp, RTC, 0x80);
+ stv0900_write_reg(intp, RTCS2, 0x40);
+ stv0900_write_reg(intp, CARFREQ, 0x0);
+ stv0900_write_reg(intp, CFRINIT1, 0x0);
+ stv0900_write_reg(intp, CFRINIT0, 0x0);
+ stv0900_write_reg(intp, AGC2REF, 0x65);
+ stv0900_write_reg(intp, DMDISTATE, 0x18);
+ msleep(7);
+
+ for (i = 0; i < 10; i++) {
+ if (stv0900_get_bits(intp, TMGLOCK_QUALITY) >= 2)
+ timingcpt++;
+
+ msleep(1);
+ }
+
+ if (timingcpt >= 3)
+ timingLock = TRUE;
+
+ stv0900_write_reg(intp, AGC2REF, 0x38);
+ stv0900_write_reg(intp, RTC, 0x88);
+ stv0900_write_reg(intp, RTCS2, 0x68);
+ stv0900_write_reg(intp, CARFREQ, car_freq);
+ stv0900_write_reg(intp, TMGTHRISE, tmg_th_high);
+ stv0900_write_reg(intp, TMGTHFALL, tmg_th_low);
+
+ 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 *intp = state->internal;
+ enum fe_stv0900_demod_num demod = state->demod;
+ int lock = FALSE,
+ d = demod;
+ s32 srate,
+ search_range,
+ locktimeout,
+ currier_step,
+ nb_steps,
+ current_step,
+ direction,
+ tuner_freq,
+ timeout,
+ freq;
+
+ srate = intp->symbol_rate[d];
+ search_range = intp->srch_range[d];
+
+ if (srate >= 10000000)
+ locktimeout = demod_timeout / 3;
+ else
+ locktimeout = demod_timeout / 2;
+
+ lock = stv0900_get_demod_lock(intp, d, locktimeout);
+
+ if (lock != FALSE)
+ return lock;
+
+ if (srate >= 10000000) {
+ if (stv0900_check_timing_lock(intp, d) == TRUE) {
+ stv0900_write_reg(intp, DMDISTATE, 0x1f);
+ stv0900_write_reg(intp, DMDISTATE, 0x15);
+ lock = stv0900_get_demod_lock(intp, d, demod_timeout);
+ } else
+ lock = FALSE;
+
+ return lock;
+ }
+
+ if (intp->chip_id <= 0x20) {
+ if (srate <= 1000000)
+ currier_step = 500;
+ 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;
+
+ if (srate >= 2000000) {
+ timeout = (demod_timeout / 3);
+ if (timeout > 1000)
+ timeout = 1000;
+ } else
+ timeout = (demod_timeout / 2);
+ } else {
+ /*cut 3.0 */
+ currier_step = srate / 4000;
+ timeout = (demod_timeout * 3) / 4;
+ }
+
+ nb_steps = ((search_range / 1000) / currier_step);
+
+ if ((nb_steps % 2) != 0)
+ nb_steps += 1;
+
+ if (nb_steps <= 0)
+ nb_steps = 2;
+ else if (nb_steps > 12)
+ nb_steps = 12;
+
+ current_step = 1;
+ direction = 1;
+
+ if (intp->chip_id <= 0x20) {
+ tuner_freq = intp->freq[d];
+ intp->bw[d] = stv0900_carrier_width(intp->symbol_rate[d],
+ intp->rolloff) + intp->symbol_rate[d];
+ } else
+ tuner_freq = 0;
+
+ while ((current_step <= nb_steps) && (lock == FALSE)) {
+ if (direction > 0)
+ tuner_freq += (current_step * currier_step);
+ else
+ tuner_freq -= (current_step * currier_step);
+
+ if (intp->chip_id <= 0x20) {
+ if (intp->tuner_type[d] == 3)
+ stv0900_set_tuner_auto(intp, tuner_freq,
+ intp->bw[d], demod);
+ else
+ stv0900_set_tuner(fe, tuner_freq, intp->bw[d]);
+
+ stv0900_write_reg(intp, DMDISTATE, 0x1c);
+ stv0900_write_reg(intp, CFRINIT1, 0);
+ stv0900_write_reg(intp, CFRINIT0, 0);
+ stv0900_write_reg(intp, DMDISTATE, 0x1f);
+ stv0900_write_reg(intp, DMDISTATE, 0x15);
+ } else {
+ stv0900_write_reg(intp, DMDISTATE, 0x1c);
+ freq = (tuner_freq * 65536) / (intp->mclk / 1000);
+ stv0900_write_bits(intp, CFR_INIT1, MSB(freq));
+ stv0900_write_bits(intp, CFR_INIT0, LSB(freq));
+ stv0900_write_reg(intp, DMDISTATE, 0x1f);
+ stv0900_write_reg(intp, DMDISTATE, 0x05);
+ }
+
+ lock = stv0900_get_demod_lock(intp, d, timeout);
+ direction *= -1;
+ current_step++;
+ }
+
+ 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 *intp,
+ enum fe_stv0900_demod_num demod)
+{
+
+ s32 vth_reg = VTH12;
+
+ dprintk("%s\n", __func__);
+
+ stv0900_write_reg(intp, vth_reg++, 0xd0);
+ stv0900_write_reg(intp, vth_reg++, 0x7d);
+ stv0900_write_reg(intp, vth_reg++, 0x53);
+ stv0900_write_reg(intp, vth_reg++, 0x2f);
+ stv0900_write_reg(intp, vth_reg++, 0x24);
+ stv0900_write_reg(intp, vth_reg++, 0x1f);
+}
+
+static void stv0900_set_viterbi_standard(struct stv0900_internal *intp,
+ enum fe_stv0900_search_standard standard,
+ enum fe_stv0900_fec fec,
+ enum fe_stv0900_demod_num demod)
+{
+ dprintk("%s: ViterbiStandard = ", __func__);
+
+ switch (standard) {
+ case STV0900_AUTO_SEARCH:
+ dprintk("Auto\n");
+ stv0900_write_reg(intp, FECM, 0x10);
+ stv0900_write_reg(intp, PRVIT, 0x3f);
+ break;
+ case STV0900_SEARCH_DVBS1:
+ dprintk("DVBS1\n");
+ stv0900_write_reg(intp, FECM, 0x00);
+ switch (fec) {
+ case STV0900_FEC_UNKNOWN:
+ default:
+ stv0900_write_reg(intp, PRVIT, 0x2f);
+ break;
+ case STV0900_FEC_1_2:
+ stv0900_write_reg(intp, PRVIT, 0x01);
+ break;
+ case STV0900_FEC_2_3:
+ stv0900_write_reg(intp, PRVIT, 0x02);
+ break;
+ case STV0900_FEC_3_4:
+ stv0900_write_reg(intp, PRVIT, 0x04);
+ break;
+ case STV0900_FEC_5_6:
+ stv0900_write_reg(intp, PRVIT, 0x08);
+ break;
+ case STV0900_FEC_7_8:
+ stv0900_write_reg(intp, PRVIT, 0x20);
+ break;
+ }
+
+ break;
+ case STV0900_SEARCH_DSS:
+ dprintk("DSS\n");
+ stv0900_write_reg(intp, FECM, 0x80);
+ switch (fec) {
+ case STV0900_FEC_UNKNOWN:
+ default:
+ stv0900_write_reg(intp, PRVIT, 0x13);
+ break;
+ case STV0900_FEC_1_2:
+ stv0900_write_reg(intp, PRVIT, 0x01);
+ break;
+ case STV0900_FEC_2_3:
+ stv0900_write_reg(intp, PRVIT, 0x02);
+ break;
+ case STV0900_FEC_6_7:
+ stv0900_write_reg(intp, PRVIT, 0x10);
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+}
+
+static enum fe_stv0900_fec stv0900_get_vit_fec(struct stv0900_internal *intp,
+ enum fe_stv0900_demod_num demod)
+{
+ enum fe_stv0900_fec prate;
+ s32 rate_fld = stv0900_get_bits(intp, VIT_CURPUN);
+
+ 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 void stv0900_set_dvbs1_track_car_loop(struct stv0900_internal *intp,
+ enum fe_stv0900_demod_num demod,
+ u32 srate)
+{
+ if (intp->chip_id >= 0x30) {
+ if (srate >= 15000000) {
+ stv0900_write_reg(intp, ACLC, 0x2b);
+ stv0900_write_reg(intp, BCLC, 0x1a);
+ } else if ((srate >= 7000000) && (15000000 > srate)) {
+ stv0900_write_reg(intp, ACLC, 0x0c);
+ stv0900_write_reg(intp, BCLC, 0x1b);
+ } else if (srate < 7000000) {
+ stv0900_write_reg(intp, ACLC, 0x2c);
+ stv0900_write_reg(intp, BCLC, 0x1c);
+ }
+
+ } else { /*cut 2.0 and 1.x*/
+ stv0900_write_reg(intp, ACLC, 0x1a);
+ stv0900_write_reg(intp, BCLC, 0x09);
+ }
+
+}
+
+static void stv0900_track_optimization(struct dvb_frontend *fe)
+{
+ struct stv0900_state *state = fe->demodulator_priv;
+ struct stv0900_internal *intp = state->internal;
+ enum fe_stv0900_demod_num demod = state->demod;
+
+ s32 srate,
+ pilots,
+ aclc,
+ freq1,
+ freq0,
+ i = 0,
+ timed,
+ timef,
+ blind_tun_sw = 0,
+ modulation;
+
+ enum fe_stv0900_modcode foundModcod;
+
+ dprintk("%s\n", __func__);
+
+ srate = stv0900_get_symbol_rate(intp, intp->mclk, demod);
+ srate += stv0900_get_timing_offst(intp, srate, demod);
+
+ switch (intp->result[demod].standard) {
+ case STV0900_DVBS1_STANDARD:
+ case STV0900_DSS_STANDARD:
+ dprintk("%s: found DVB-S or DSS\n", __func__);
+ if (intp->srch_standard[demod] == STV0900_AUTO_SEARCH) {
+ stv0900_write_bits(intp, DVBS1_ENABLE, 1);
+ stv0900_write_bits(intp, DVBS2_ENABLE, 0);
+ }
+
+ stv0900_write_bits(intp, ROLLOFF_CONTROL, intp->rolloff);
+ stv0900_write_bits(intp, MANUALSX_ROLLOFF, 1);
+
+ if (intp->chip_id < 0x30) {
+ stv0900_write_reg(intp, ERRCTRL1, 0x75);
+ break;
+ }
+
+ if (stv0900_get_vit_fec(intp, demod) == STV0900_FEC_1_2) {
+ stv0900_write_reg(intp, GAUSSR0, 0x98);
+ stv0900_write_reg(intp, CCIR0, 0x18);
+ } else {
+ stv0900_write_reg(intp, GAUSSR0, 0x18);
+ stv0900_write_reg(intp, CCIR0, 0x18);
+ }
+
+ stv0900_write_reg(intp, ERRCTRL1, 0x75);
+ break;
+ case STV0900_DVBS2_STANDARD:
+ dprintk("%s: found DVB-S2\n", __func__);
+ stv0900_write_bits(intp, DVBS1_ENABLE, 0);
+ stv0900_write_bits(intp, DVBS2_ENABLE, 1);
+ stv0900_write_reg(intp, ACLC, 0);
+ stv0900_write_reg(intp, BCLC, 0);
+ if (intp->result[demod].frame_len == STV0900_LONG_FRAME) {
+ foundModcod = stv0900_get_bits(intp, DEMOD_MODCOD);
+ pilots = stv0900_get_bits(intp, DEMOD_TYPE) & 0x01;
+ aclc = stv0900_get_optim_carr_loop(srate,
+ foundModcod,
+ pilots,
+ intp->chip_id);
+ if (foundModcod <= STV0900_QPSK_910)
+ stv0900_write_reg(intp, ACLC2S2Q, aclc);
+ else if (foundModcod <= STV0900_8PSK_910) {
+ stv0900_write_reg(intp, ACLC2S2Q, 0x2a);
+ stv0900_write_reg(intp, ACLC2S28, aclc);
+ }
+
+ if ((intp->demod_mode == STV0900_SINGLE) &&
+ (foundModcod > STV0900_8PSK_910)) {
+ if (foundModcod <= STV0900_16APSK_910) {
+ stv0900_write_reg(intp, ACLC2S2Q, 0x2a);
+ stv0900_write_reg(intp, ACLC2S216A,
+ aclc);
+ } else if (foundModcod <= STV0900_32APSK_910) {
+ stv0900_write_reg(intp, ACLC2S2Q, 0x2a);
+ stv0900_write_reg(intp, ACLC2S232A,
+ aclc);
+ }
+ }
+
+ } else {
+ modulation = intp->result[demod].modulation;
+ aclc = stv0900_get_optim_short_carr_loop(srate,
+ modulation, intp->chip_id);
+ if (modulation == STV0900_QPSK)
+ stv0900_write_reg(intp, ACLC2S2Q, aclc);
+ else if (modulation == STV0900_8PSK) {
+ stv0900_write_reg(intp, ACLC2S2Q, 0x2a);
+ stv0900_write_reg(intp, ACLC2S28, aclc);
+ } else if (modulation == STV0900_16APSK) {
+ stv0900_write_reg(intp, ACLC2S2Q, 0x2a);
+ stv0900_write_reg(intp, ACLC2S216A, aclc);
+ } else if (modulation == STV0900_32APSK) {
+ stv0900_write_reg(intp, ACLC2S2Q, 0x2a);
+ stv0900_write_reg(intp, ACLC2S232A, aclc);
+ }
+
+ }
+
+ if (intp->chip_id <= 0x11) {
+ if (intp->demod_mode != STV0900_SINGLE)
+ stv0900_activate_s2_modcod(intp, demod);
+
+ }
+
+ stv0900_write_reg(intp, ERRCTRL1, 0x67);
+ break;
+ case STV0900_UNKNOWN_STANDARD:
+ default:
+ dprintk("%s: found unknown standard\n", __func__);
+ stv0900_write_bits(intp, DVBS1_ENABLE, 1);
+ stv0900_write_bits(intp, DVBS2_ENABLE, 1);
+ break;
+ }
+
+ freq1 = stv0900_read_reg(intp, CFR2);
+ freq0 = stv0900_read_reg(intp, CFR1);
+ if (intp->srch_algo[demod] == STV0900_BLIND_SEARCH) {
+ stv0900_write_reg(intp, SFRSTEP, 0x00);
+ stv0900_write_bits(intp, SCAN_ENABLE, 0);
+ stv0900_write_bits(intp, CFR_AUTOSCAN, 0);
+ stv0900_write_reg(intp, TMGCFG2, 0xc1);
+ stv0900_set_symbol_rate(intp, intp->mclk, srate, demod);
+ blind_tun_sw = 1;
+ if (intp->result[demod].standard != STV0900_DVBS2_STANDARD)
+ stv0900_set_dvbs1_track_car_loop(intp, demod, srate);
+
+ }
+
+ if (intp->chip_id >= 0x20) {
+ if ((intp->srch_standard[demod] == STV0900_SEARCH_DVBS1) ||
+ (intp->srch_standard[demod] ==
+ STV0900_SEARCH_DSS) ||
+ (intp->srch_standard[demod] ==
+ STV0900_AUTO_SEARCH)) {
+ stv0900_write_reg(intp, VAVSRVIT, 0x0a);
+ stv0900_write_reg(intp, VITSCALE, 0x0);
+ }
+ }
+
+ if (intp->chip_id < 0x20)
+ stv0900_write_reg(intp, CARHDR, 0x08);
+
+ if (intp->chip_id == 0x10)
+ stv0900_write_reg(intp, CORRELEXP, 0x0a);
+
+ stv0900_write_reg(intp, AGC2REF, 0x38);
+
+ if ((intp->chip_id >= 0x20) ||
+ (blind_tun_sw == 1) ||
+ (intp->symbol_rate[demod] < 10000000)) {
+ stv0900_write_reg(intp, CFRINIT1, freq1);
+ stv0900_write_reg(intp, CFRINIT0, freq0);
+ intp->bw[demod] = stv0900_carrier_width(srate,
+ intp->rolloff) + 10000000;
+
+ if ((intp->chip_id >= 0x20) || (blind_tun_sw == 1)) {
+ if (intp->srch_algo[demod] != STV0900_WARM_START) {
+ if (intp->tuner_type[demod] == 3)
+ stv0900_set_tuner_auto(intp,
+ intp->freq[demod],
+ intp->bw[demod],
+ demod);
+ else
+ stv0900_set_bandwidth(fe,
+ intp->bw[demod]);
+ }
+ }
+
+ if ((intp->srch_algo[demod] == STV0900_BLIND_SEARCH) ||
+ (intp->symbol_rate[demod] < 10000000))
+ msleep(50);
+ else
+ msleep(5);
+
+ stv0900_get_lock_timeout(&timed, &timef, srate,
+ STV0900_WARM_START);
+
+ if (stv0900_get_demod_lock(intp, demod, timed / 2) == FALSE) {
+ stv0900_write_reg(intp, DMDISTATE, 0x1f);
+ stv0900_write_reg(intp, CFRINIT1, freq1);
+ stv0900_write_reg(intp, CFRINIT0, freq0);
+ stv0900_write_reg(intp, DMDISTATE, 0x18);
+ i = 0;
+ while ((stv0900_get_demod_lock(intp,
+ demod,
+ timed / 2) == FALSE) &&
+ (i <= 2)) {
+ stv0900_write_reg(intp, DMDISTATE, 0x1f);
+ stv0900_write_reg(intp, CFRINIT1, freq1);
+ stv0900_write_reg(intp, CFRINIT0, freq0);
+ stv0900_write_reg(intp, DMDISTATE, 0x18);
+ i++;
+ }
+ }
+
+ }
+
+ if (intp->chip_id >= 0x20)
+ stv0900_write_reg(intp, CARFREQ, 0x49);
+
+ if ((intp->result[demod].standard == STV0900_DVBS1_STANDARD) ||
+ (intp->result[demod].standard == STV0900_DSS_STANDARD))
+ stv0900_set_viterbi_tracq(intp, demod);
+
+}
+
+static int stv0900_get_fec_lock(struct stv0900_internal *intp,
+ enum fe_stv0900_demod_num demod, s32 time_out)
+{
+ s32 timer = 0, lock = 0;
+
+ enum fe_stv0900_search_state dmd_state;
+
+ dprintk("%s\n", __func__);
+
+ dmd_state = stv0900_get_bits(intp, HEADER_MODE);
+
+ 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(intp, PKTDELIN_LOCK);
+ break;
+ case STV0900_DVBS_FOUND:
+ lock = stv0900_get_bits(intp, LOCKEDVIT);
+ break;
+ }
+
+ if (lock == 0) {
+ msleep(10);
+ timer += 10;
+ }
+ }
+
+ if (lock)
+ dprintk("%s: DEMOD FEC LOCK OK\n", __func__);
+ else
+ dprintk("%s: DEMOD FEC LOCK FAIL\n", __func__);
+
+ return lock;
+}
+
+static int stv0900_wait_for_lock(struct stv0900_internal *intp,
+ enum fe_stv0900_demod_num demod,
+ s32 dmd_timeout, s32 fec_timeout)
+{
+
+ s32 timer = 0, lock = 0;
+
+ dprintk("%s\n", __func__);
+
+ lock = stv0900_get_demod_lock(intp, demod, dmd_timeout);
+
+ if (lock)
+ lock = stv0900_get_fec_lock(intp, demod, fec_timeout);
+
+ if (lock) {
+ lock = 0;
+
+ dprintk("%s: Timer = %d, time_out = %d\n",
+ __func__, timer, fec_timeout);
+
+ while ((timer < fec_timeout) && (lock == 0)) {
+ lock = stv0900_get_bits(intp, TSFIFO_LINEOK);
+ msleep(1);
+ timer++;
+ }
+ }
+
+ if (lock)
+ dprintk("%s: DEMOD LOCK OK\n", __func__);
+ else
+ dprintk("%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 *intp = state->internal;
+ enum fe_stv0900_tracking_standard fnd_standard;
+
+ int hdr_mode = stv0900_get_bits(intp, HEADER_MODE);
+
+ switch (hdr_mode) {
+ case 2:
+ fnd_standard = STV0900_DVBS2_STANDARD;
+ break;
+ case 3:
+ if (stv0900_get_bits(intp, DSS_DVB) == 1)
+ fnd_standard = STV0900_DSS_STANDARD;
+ else
+ fnd_standard = STV0900_DVBS1_STANDARD;
+
+ break;
+ default:
+ fnd_standard = STV0900_UNKNOWN_STANDARD;
+ }
+
+ dprintk("%s: standard %d\n", __func__, fnd_standard);
+
+ return fnd_standard;
+}
+
+static s32 stv0900_get_carr_freq(struct stv0900_internal *intp, u32 mclk,
+ enum fe_stv0900_demod_num demod)
+{
+ s32 derot,
+ rem1,
+ rem2,
+ intval1,
+ intval2;
+
+ derot = (stv0900_get_bits(intp, CAR_FREQ2) << 16) +
+ (stv0900_get_bits(intp, CAR_FREQ1) << 8) +
+ (stv0900_get_bits(intp, CAR_FREQ0));
+
+ 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 freq = 0;
+
+ frontend_ops = &fe->ops;
+ tuner_ops = &frontend_ops->tuner_ops;
+
+ if (tuner_ops->get_frequency) {
+ if ((tuner_ops->get_frequency(fe, &freq)) < 0)
+ dprintk("%s: Invalid parameter\n", __func__);
+ else
+ dprintk("%s: Frequency=%d\n", __func__, freq);
+
+ }
+
+ return freq;
+}
+
+static enum
+fe_stv0900_signal_type stv0900_get_signal_params(struct dvb_frontend *fe)
+{
+ struct stv0900_state *state = fe->demodulator_priv;
+ struct stv0900_internal *intp = state->internal;
+ enum fe_stv0900_demod_num demod = state->demod;
+ enum fe_stv0900_signal_type range = STV0900_OUTOFRANGE;
+ struct stv0900_signal_info *result = &intp->result[demod];
+ s32 offsetFreq,
+ srate_offset;
+ int i = 0,
+ d = demod;
+
+ u8 timing;
+
+ msleep(5);
+ if (intp->srch_algo[d] == STV0900_BLIND_SEARCH) {
+ timing = stv0900_read_reg(intp, TMGREG2);
+ i = 0;
+ stv0900_write_reg(intp, SFRSTEP, 0x5c);
+
+ while ((i <= 50) && (timing != 0) && (timing != 0xff)) {
+ timing = stv0900_read_reg(intp, TMGREG2);
+ msleep(5);
+ i += 5;
+ }
+ }
+
+ result->standard = stv0900_get_standard(fe, d);
+ if (intp->tuner_type[demod] == 3)
+ result->frequency = stv0900_get_freq_auto(intp, d);
+ else
+ result->frequency = stv0900_get_tuner_freq(fe);
+
+ offsetFreq = stv0900_get_carr_freq(intp, intp->mclk, d) / 1000;
+ result->frequency += offsetFreq;
+ result->symbol_rate = stv0900_get_symbol_rate(intp, intp->mclk, d);
+ srate_offset = stv0900_get_timing_offst(intp, result->symbol_rate, d);
+ result->symbol_rate += srate_offset;
+ result->fec = stv0900_get_vit_fec(intp, d);
+ result->modcode = stv0900_get_bits(intp, DEMOD_MODCOD);
+ result->pilot = stv0900_get_bits(intp, DEMOD_TYPE) & 0x01;
+ result->frame_len = ((u32)stv0900_get_bits(intp, DEMOD_TYPE)) >> 1;
+ result->rolloff = stv0900_get_bits(intp, ROLLOFF_STATUS);
+
+ dprintk("%s: modcode=0x%x \n", __func__, result->modcode);
+
+ switch (result->standard) {
+ case STV0900_DVBS2_STANDARD:
+ result->spectrum = stv0900_get_bits(intp, SPECINV_DEMOD);
+ if (result->modcode <= STV0900_QPSK_910)
+ result->modulation = STV0900_QPSK;
+ else if (result->modcode <= STV0900_8PSK_910)
+ result->modulation = STV0900_8PSK;
+ else if (result->modcode <= STV0900_16APSK_910)
+ result->modulation = STV0900_16APSK;
+ else if (result->modcode <= STV0900_32APSK_910)
+ result->modulation = STV0900_32APSK;
+ else
+ result->modulation = STV0900_UNKNOWN;
+ break;
+ case STV0900_DVBS1_STANDARD:
+ case STV0900_DSS_STANDARD:
+ result->spectrum = stv0900_get_bits(intp, IQINV);
+ result->modulation = STV0900_QPSK;
+ break;
+ default:
+ break;
+ }
+
+ if ((intp->srch_algo[d] == STV0900_BLIND_SEARCH) ||
+ (intp->symbol_rate[d] < 10000000)) {
+ offsetFreq = result->frequency - intp->freq[d];
+ if (intp->tuner_type[demod] == 3)
+ intp->freq[d] = stv0900_get_freq_auto(intp, d);
+ else
+ intp->freq[d] = stv0900_get_tuner_freq(fe);
+
+ if (ABS(offsetFreq) <= ((intp->srch_range[d] / 2000) + 500))
+ range = STV0900_RANGEOK;
+ else if (ABS(offsetFreq) <=
+ (stv0900_carrier_width(result->symbol_rate,
+ result->rolloff) / 2000))
+ range = STV0900_RANGEOK;
+
+ } else if (ABS(offsetFreq) <= ((intp->srch_range[d] / 2000) + 500))
+ range = STV0900_RANGEOK;
+
+ dprintk("%s: range %d\n", __func__, range);
+
+ 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 *intp = state->internal;
+ enum fe_stv0900_demod_num demod = state->demod;
+ enum fe_stv0900_signal_type signal_type = STV0900_NODATA;
+
+ s32 srate,
+ demod_timeout,
+ fec_timeout,
+ freq1,
+ freq0;
+
+ intp->result[demod].locked = FALSE;
+
+ if (stv0900_get_bits(intp, HEADER_MODE) == STV0900_DVBS_FOUND) {
+ srate = stv0900_get_symbol_rate(intp, intp->mclk, demod);
+ srate += stv0900_get_timing_offst(intp, srate, demod);
+ if (intp->srch_algo[demod] == STV0900_BLIND_SEARCH)
+ stv0900_set_symbol_rate(intp, intp->mclk, srate, demod);
+
+ stv0900_get_lock_timeout(&demod_timeout, &fec_timeout,
+ srate, STV0900_WARM_START);
+ freq1 = stv0900_read_reg(intp, CFR2);
+ freq0 = stv0900_read_reg(intp, CFR1);
+ stv0900_write_bits(intp, CFR_AUTOSCAN, 0);
+ stv0900_write_bits(intp, SPECINV_CONTROL,
+ STV0900_IQ_FORCE_SWAPPED);
+ stv0900_write_reg(intp, DMDISTATE, 0x1c);
+ stv0900_write_reg(intp, CFRINIT1, freq1);
+ stv0900_write_reg(intp, CFRINIT0, freq0);
+ stv0900_write_reg(intp, DMDISTATE, 0x18);
+ if (stv0900_wait_for_lock(intp, demod,
+ demod_timeout, fec_timeout) == TRUE) {
+ intp->result[demod].locked = TRUE;
+ signal_type = stv0900_get_signal_params(fe);
+ stv0900_track_optimization(fe);
+ } else {
+ stv0900_write_bits(intp, SPECINV_CONTROL,
+ STV0900_IQ_FORCE_NORMAL);
+ stv0900_write_reg(intp, DMDISTATE, 0x1c);
+ stv0900_write_reg(intp, CFRINIT1, freq1);
+ stv0900_write_reg(intp, CFRINIT0, freq0);
+ stv0900_write_reg(intp, DMDISTATE, 0x18);
+ if (stv0900_wait_for_lock(intp, demod,
+ demod_timeout, fec_timeout) == TRUE) {
+ intp->result[demod].locked = TRUE;
+ signal_type = stv0900_get_signal_params(fe);
+ stv0900_track_optimization(fe);
+ }
+
+ }
+
+ } else
+ intp->result[demod].locked = FALSE;
+
+ return signal_type;
+}
+
+static u16 stv0900_blind_check_agc2_min_level(struct stv0900_internal *intp,
+ enum fe_stv0900_demod_num demod)
+{
+ u32 minagc2level = 0xffff,
+ agc2level,
+ init_freq, freq_step;
+
+ s32 i, j, nb_steps, direction;
+
+ dprintk("%s\n", __func__);
+
+ stv0900_write_reg(intp, AGC2REF, 0x38);
+ stv0900_write_bits(intp, SCAN_ENABLE, 0);
+ stv0900_write_bits(intp, CFR_AUTOSCAN, 0);
+
+ stv0900_write_bits(intp, AUTO_GUP, 1);
+ stv0900_write_bits(intp, AUTO_GLOW, 1);
+
+ stv0900_write_reg(intp, DMDT0M, 0x0);
+
+ stv0900_set_symbol_rate(intp, intp->mclk, 1000000, demod);
+ nb_steps = -1 + (intp->srch_range[demod] / 1000000);
+ nb_steps /= 2;
+ nb_steps = (2 * nb_steps) + 1;
+
+ if (nb_steps < 0)
+ nb_steps = 1;
+
+ direction = 1;
+
+ freq_step = (1000000 << 8) / (intp->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(intp, DMDISTATE, 0x5C);
+ stv0900_write_reg(intp, CFRINIT1, (init_freq >> 8) & 0xff);
+ stv0900_write_reg(intp, CFRINIT0, init_freq & 0xff);
+ stv0900_write_reg(intp, DMDISTATE, 0x58);
+ msleep(10);
+ agc2level = 0;
+
+ for (j = 0; j < 10; j++)
+ agc2level += (stv0900_read_reg(intp, AGC2I1) << 8)
+ | stv0900_read_reg(intp, AGC2I0);
+
+ agc2level /= 10;
+
+ if (agc2level < minagc2level)
+ minagc2level = agc2level;
+
+ }
+
+ return (u16)minagc2level;
+}
+
+static u32 stv0900_search_srate_coarse(struct dvb_frontend *fe)
+{
+ struct stv0900_state *state = fe->demodulator_priv;
+ struct stv0900_internal *intp = state->internal;
+ enum fe_stv0900_demod_num demod = state->demod;
+ int timing_lck = FALSE;
+ s32 i, timingcpt = 0,
+ direction = 1,
+ nb_steps,
+ current_step = 0,
+ tuner_freq;
+ u32 agc2_th,
+ coarse_srate = 0,
+ agc2_integr = 0,
+ currier_step = 1200;
+
+ if (intp->chip_id >= 0x30)
+ agc2_th = 0x2e00;
+ else
+ agc2_th = 0x1f00;
+
+ stv0900_write_bits(intp, DEMOD_MODE, 0x1f);
+ stv0900_write_reg(intp, TMGCFG, 0x12);
+ stv0900_write_reg(intp, TMGTHRISE, 0xf0);
+ stv0900_write_reg(intp, TMGTHFALL, 0xe0);
+ stv0900_write_bits(intp, SCAN_ENABLE, 1);
+ stv0900_write_bits(intp, CFR_AUTOSCAN, 1);
+ stv0900_write_reg(intp, SFRUP1, 0x83);
+ stv0900_write_reg(intp, SFRUP0, 0xc0);
+ stv0900_write_reg(intp, SFRLOW1, 0x82);
+ stv0900_write_reg(intp, SFRLOW0, 0xa0);
+ stv0900_write_reg(intp, DMDT0M, 0x0);
+ stv0900_write_reg(intp, AGC2REF, 0x50);
+
+ if (intp->chip_id >= 0x30) {
+ stv0900_write_reg(intp, CARFREQ, 0x99);
+ stv0900_write_reg(intp, SFRSTEP, 0x98);
+ } else if (intp->chip_id >= 0x20) {
+ stv0900_write_reg(intp, CARFREQ, 0x6a);
+ stv0900_write_reg(intp, SFRSTEP, 0x95);
+ } else {
+ stv0900_write_reg(intp, CARFREQ, 0xed);
+ stv0900_write_reg(intp, SFRSTEP, 0x73);
+ }
+
+ if (intp->symbol_rate[demod] <= 2000000)
+ currier_step = 1000;
+ else if (intp->symbol_rate[demod] <= 5000000)
+ currier_step = 2000;
+ else if (intp->symbol_rate[demod] <= 12000000)
+ currier_step = 3000;
+ else
+ currier_step = 5000;
+
+ nb_steps = -1 + ((intp->srch_range[demod] / 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 = (intp->srch_range[demod] / 1000) / 10;
+ }
+
+ current_step = 0;
+ direction = 1;
+
+ tuner_freq = intp->freq[demod];
+
+ while ((timing_lck == FALSE) && (current_step < nb_steps)) {
+ stv0900_write_reg(intp, DMDISTATE, 0x5f);
+ stv0900_write_bits(intp, DEMOD_MODE, 0);
+
+ msleep(50);
+
+ for (i = 0; i < 10; i++) {
+ if (stv0900_get_bits(intp, TMGLOCK_QUALITY) >= 2)
+ timingcpt++;
+
+ agc2_integr += (stv0900_read_reg(intp, AGC2I1) << 8) |
+ stv0900_read_reg(intp, AGC2I0);
+ }
+
+ agc2_integr /= 10;
+ coarse_srate = stv0900_get_symbol_rate(intp, intp->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 < agc2_th) &&
+ (coarse_srate < 55000000) &&
+ (coarse_srate > 850000))
+ timing_lck = TRUE;
+ else if (current_step < nb_steps) {
+ if (direction > 0)
+ tuner_freq += (current_step * currier_step);
+ else
+ tuner_freq -= (current_step * currier_step);
+
+ if (intp->tuner_type[demod] == 3)
+ stv0900_set_tuner_auto(intp, tuner_freq,
+ intp->bw[demod], demod);
+ else
+ stv0900_set_tuner(fe, tuner_freq,
+ intp->bw[demod]);
+ }
+ }
+
+ if (timing_lck == FALSE)
+ coarse_srate = 0;
+ else
+ coarse_srate = stv0900_get_symbol_rate(intp, intp->mclk, demod);
+
+ return coarse_srate;
+}
+
+static u32 stv0900_search_srate_fine(struct dvb_frontend *fe)
+{
+ struct stv0900_state *state = fe->demodulator_priv;
+ struct stv0900_internal *intp = state->internal;
+ enum fe_stv0900_demod_num demod = state->demod;
+ u32 coarse_srate,
+ coarse_freq,
+ symb,
+ symbmax,
+ symbmin,
+ symbcomp;
+
+ coarse_srate = stv0900_get_symbol_rate(intp, intp->mclk, demod);
+
+ if (coarse_srate > 3000000) {
+ symbmax = 13 * (coarse_srate / 10);
+ symbmax = (symbmax / 1000) * 65536;
+ symbmax /= (intp->mclk / 1000);
+
+ symbmin = 10 * (coarse_srate / 13);
+ symbmin = (symbmin / 1000)*65536;
+ symbmin /= (intp->mclk / 1000);
+
+ symb = (coarse_srate / 1000) * 65536;
+ symb /= (intp->mclk / 1000);
+ } else {
+ symbmax = 13 * (coarse_srate / 10);
+ symbmax = (symbmax / 100) * 65536;
+ symbmax /= (intp->mclk / 100);
+
+ symbmin = 10 * (coarse_srate / 14);
+ symbmin = (symbmin / 100) * 65536;
+ symbmin /= (intp->mclk / 100);
+
+ symb = (coarse_srate / 100) * 65536;
+ symb /= (intp->mclk / 100);
+ }
+
+ symbcomp = 13 * (coarse_srate / 10);
+ coarse_freq = (stv0900_read_reg(intp, CFR2) << 8)
+ | stv0900_read_reg(intp, CFR1);
+
+ if (symbcomp < intp->symbol_rate[demod])
+ coarse_srate = 0;
+ else {
+ stv0900_write_reg(intp, DMDISTATE, 0x1f);
+ stv0900_write_reg(intp, TMGCFG2, 0xc1);
+ stv0900_write_reg(intp, TMGTHRISE, 0x20);
+ stv0900_write_reg(intp, TMGTHFALL, 0x00);
+ stv0900_write_reg(intp, TMGCFG, 0xd2);
+ stv0900_write_bits(intp, CFR_AUTOSCAN, 0);
+ stv0900_write_reg(intp, AGC2REF, 0x38);
+
+ if (intp->chip_id >= 0x30)
+ stv0900_write_reg(intp, CARFREQ, 0x79);
+ else if (intp->chip_id >= 0x20)
+ stv0900_write_reg(intp, CARFREQ, 0x49);
+ else
+ stv0900_write_reg(intp, CARFREQ, 0xed);
+
+ stv0900_write_reg(intp, SFRUP1, (symbmax >> 8) & 0x7f);
+ stv0900_write_reg(intp, SFRUP0, (symbmax & 0xff));
+
+ stv0900_write_reg(intp, SFRLOW1, (symbmin >> 8) & 0x7f);
+ stv0900_write_reg(intp, SFRLOW0, (symbmin & 0xff));
+
+ stv0900_write_reg(intp, SFRINIT1, (symb >> 8) & 0xff);
+ stv0900_write_reg(intp, SFRINIT0, (symb & 0xff));
+
+ stv0900_write_reg(intp, DMDT0M, 0x20);
+ stv0900_write_reg(intp, CFRINIT1, (coarse_freq >> 8) & 0xff);
+ stv0900_write_reg(intp, CFRINIT0, coarse_freq & 0xff);
+ stv0900_write_reg(intp, DMDISTATE, 0x15);
+ }
+
+ return coarse_srate;
+}
+
+static int stv0900_blind_search_algo(struct dvb_frontend *fe)
+{
+ struct stv0900_state *state = fe->demodulator_priv;
+ struct stv0900_internal *intp = 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,
+ agc2_th;
+ int lock = FALSE,
+ coarse_fail = FALSE;
+ s32 demod_timeout = 500,
+ fec_timeout = 50,
+ fail_cpt,
+ i,
+ agc2_overflow;
+ u16 agc2_int;
+ u8 dstatus2;
+
+ dprintk("%s\n", __func__);
+
+ if (intp->chip_id < 0x20) {
+ k_ref_tmg_max = 233;
+ k_ref_tmg_min = 143;
+ } else {
+ k_ref_tmg_max = 110;
+ k_ref_tmg_min = 10;
+ }
+
+ if (intp->chip_id <= 0x20)
+ agc2_th = STV0900_BLIND_SEARCH_AGC2_TH;
+ else
+ agc2_th = STV0900_BLIND_SEARCH_AGC2_TH_CUT30;
+
+ agc2_int = stv0900_blind_check_agc2_min_level(intp, demod);
+
+ dprintk("%s agc2_int=%d agc2_th=%d \n", __func__, agc2_int, agc2_th);
+ if (agc2_int > agc2_th)
+ return FALSE;
+
+ if (intp->chip_id == 0x10)
+ stv0900_write_reg(intp, CORRELEXP, 0xaa);
+
+ if (intp->chip_id < 0x20)
+ stv0900_write_reg(intp, CARHDR, 0x55);
+ else
+ stv0900_write_reg(intp, CARHDR, 0x20);
+
+ if (intp->chip_id <= 0x20)
+ stv0900_write_reg(intp, CARCFG, 0xc4);
+ else
+ stv0900_write_reg(intp, CARCFG, 0x6);
+
+ stv0900_write_reg(intp, RTCS2, 0x44);
+
+ if (intp->chip_id >= 0x20) {
+ stv0900_write_reg(intp, EQUALCFG, 0x41);
+ stv0900_write_reg(intp, FFECFG, 0x41);
+ stv0900_write_reg(intp, VITSCALE, 0x82);
+ stv0900_write_reg(intp, VAVSRVIT, 0x0);
+ }
+
+ k_ref_tmg = k_ref_tmg_max;
+
+ do {
+ stv0900_write_reg(intp, KREFTMG, 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(intp,
+ demod,
+ demod_timeout);
+ } else
+ lock = FALSE;
+ } else {
+ fail_cpt = 0;
+ agc2_overflow = 0;
+
+ for (i = 0; i < 10; i++) {
+ agc2_int = (stv0900_read_reg(intp, AGC2I1) << 8)
+ | stv0900_read_reg(intp, AGC2I0);
+
+ if (agc2_int >= 0xff00)
+ agc2_overflow++;
+
+ dstatus2 = stv0900_read_reg(intp, DSTATUS2);
+
+ if (((dstatus2 & 0x1) == 0x1) &&
+ ((dstatus2 >> 7) == 1))
+ fail_cpt++;
+ }
+
+ 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 *intp,
+ enum fe_stv0900_demod_num demod)
+{
+ s32 vth_reg = VTH12;
+
+ dprintk("%s\n", __func__);
+
+ stv0900_write_reg(intp, vth_reg++, 0x96);
+ stv0900_write_reg(intp, vth_reg++, 0x64);
+ stv0900_write_reg(intp, vth_reg++, 0x36);
+ stv0900_write_reg(intp, vth_reg++, 0x23);
+ stv0900_write_reg(intp, vth_reg++, 0x1e);
+ stv0900_write_reg(intp, vth_reg++, 0x19);
+}
+
+static void stv0900_set_search_standard(struct stv0900_internal *intp,
+ enum fe_stv0900_demod_num demod)
+{
+
+ dprintk("%s\n", __func__);
+
+ switch (intp->srch_standard[demod]) {
+ case STV0900_SEARCH_DVBS1:
+ dprintk("Search Standard = DVBS1\n");
+ break;
+ case STV0900_SEARCH_DSS:
+ dprintk("Search Standard = DSS\n");
+ break;
+ case STV0900_SEARCH_DVBS2:
+ dprintk("Search Standard = DVBS2\n");
+ break;
+ case STV0900_AUTO_SEARCH:
+ default:
+ dprintk("Search Standard = AUTO\n");
+ break;
+ }
+
+ switch (intp->srch_standard[demod]) {
+ case STV0900_SEARCH_DVBS1:
+ case STV0900_SEARCH_DSS:
+ stv0900_write_bits(intp, DVBS1_ENABLE, 1);
+ stv0900_write_bits(intp, DVBS2_ENABLE, 0);
+ stv0900_write_bits(intp, STOP_CLKVIT, 0);
+ stv0900_set_dvbs1_track_car_loop(intp,
+ demod,
+ intp->symbol_rate[demod]);
+ stv0900_write_reg(intp, CAR2CFG, 0x22);
+
+ stv0900_set_viterbi_acq(intp, demod);
+ stv0900_set_viterbi_standard(intp,
+ intp->srch_standard[demod],
+ intp->fec[demod], demod);
+
+ break;
+ case STV0900_SEARCH_DVBS2:
+ stv0900_write_bits(intp, DVBS1_ENABLE, 0);
+ stv0900_write_bits(intp, DVBS2_ENABLE, 1);
+ stv0900_write_bits(intp, STOP_CLKVIT, 1);
+ stv0900_write_reg(intp, ACLC, 0x1a);
+ stv0900_write_reg(intp, BCLC, 0x09);
+ if (intp->chip_id <= 0x20) /*cut 1.x and 2.0*/
+ stv0900_write_reg(intp, CAR2CFG, 0x26);
+ else
+ stv0900_write_reg(intp, CAR2CFG, 0x66);
+
+ if (intp->demod_mode != STV0900_SINGLE) {
+ if (intp->chip_id <= 0x11)
+ stv0900_stop_all_s2_modcod(intp, demod);
+ else
+ stv0900_activate_s2_modcod(intp, demod);
+
+ } else
+ stv0900_activate_s2_modcod_single(intp, demod);
+
+ stv0900_set_viterbi_tracq(intp, demod);
+
+ break;
+ case STV0900_AUTO_SEARCH:
+ default:
+ stv0900_write_bits(intp, DVBS1_ENABLE, 1);
+ stv0900_write_bits(intp, DVBS2_ENABLE, 1);
+ stv0900_write_bits(intp, STOP_CLKVIT, 0);
+ stv0900_write_reg(intp, ACLC, 0x1a);
+ stv0900_write_reg(intp, BCLC, 0x09);
+ stv0900_set_dvbs1_track_car_loop(intp,
+ demod,
+ intp->symbol_rate[demod]);
+ if (intp->chip_id <= 0x20) /*cut 1.x and 2.0*/
+ stv0900_write_reg(intp, CAR2CFG, 0x26);
+ else
+ stv0900_write_reg(intp, CAR2CFG, 0x66);
+
+ if (intp->demod_mode != STV0900_SINGLE) {
+ if (intp->chip_id <= 0x11)
+ stv0900_stop_all_s2_modcod(intp, demod);
+ else
+ stv0900_activate_s2_modcod(intp, demod);
+
+ } else
+ stv0900_activate_s2_modcod_single(intp, demod);
+
+ stv0900_set_viterbi_tracq(intp, demod);
+ stv0900_set_viterbi_standard(intp,
+ intp->srch_standard[demod],
+ intp->fec[demod], demod);
+
+ break;
+ }
+}
+
+enum fe_stv0900_signal_type stv0900_algo(struct dvb_frontend *fe)
+{
+ struct stv0900_state *state = fe->demodulator_priv;
+ struct stv0900_internal *intp = state->internal;
+ enum fe_stv0900_demod_num demod = state->demod;
+
+ s32 demod_timeout = 500, fec_timeout = 50;
+ s32 aq_power, agc1_power, i;
+
+ 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("%s\n", __func__);
+
+ algo = intp->srch_algo[demod];
+ stv0900_write_bits(intp, RST_HWARE, 1);
+ stv0900_write_reg(intp, DMDISTATE, 0x5c);
+ if (intp->chip_id >= 0x20) {
+ if (intp->symbol_rate[demod] > 5000000)
+ stv0900_write_reg(intp, CORRELABS, 0x9e);
+ else
+ stv0900_write_reg(intp, CORRELABS, 0x82);
+ } else
+ stv0900_write_reg(intp, CORRELABS, 0x88);
+
+ stv0900_get_lock_timeout(&demod_timeout, &fec_timeout,
+ intp->symbol_rate[demod],
+ intp->srch_algo[demod]);
+
+ if (intp->srch_algo[demod] == STV0900_BLIND_SEARCH) {
+ intp->bw[demod] = 2 * 36000000;
+
+ stv0900_write_reg(intp, TMGCFG2, 0xc0);
+ stv0900_write_reg(intp, CORRELMANT, 0x70);
+
+ stv0900_set_symbol_rate(intp, intp->mclk, 1000000, demod);
+ } else {
+ stv0900_write_reg(intp, DMDT0M, 0x20);
+ stv0900_write_reg(intp, TMGCFG, 0xd2);
+
+ if (intp->symbol_rate[demod] < 2000000)
+ stv0900_write_reg(intp, CORRELMANT, 0x63);
+ else
+ stv0900_write_reg(intp, CORRELMANT, 0x70);
+
+ stv0900_write_reg(intp, AGC2REF, 0x38);
+
+ intp->bw[demod] =
+ stv0900_carrier_width(intp->symbol_rate[demod],
+ intp->rolloff);
+ if (intp->chip_id >= 0x20) {
+ stv0900_write_reg(intp, KREFTMG, 0x5a);
+
+ if (intp->srch_algo[demod] == STV0900_COLD_START) {
+ intp->bw[demod] += 10000000;
+ intp->bw[demod] *= 15;
+ intp->bw[demod] /= 10;
+ } else if (intp->srch_algo[demod] == STV0900_WARM_START)
+ intp->bw[demod] += 10000000;
+
+ } else {
+ stv0900_write_reg(intp, KREFTMG, 0xc1);
+ intp->bw[demod] += 10000000;
+ intp->bw[demod] *= 15;
+ intp->bw[demod] /= 10;
+ }
+
+ stv0900_write_reg(intp, TMGCFG2, 0xc1);
+
+ stv0900_set_symbol_rate(intp, intp->mclk,
+ intp->symbol_rate[demod], demod);
+ stv0900_set_max_symbol_rate(intp, intp->mclk,
+ intp->symbol_rate[demod], demod);
+ stv0900_set_min_symbol_rate(intp, intp->mclk,
+ intp->symbol_rate[demod], demod);
+ if (intp->symbol_rate[demod] >= 10000000)
+ low_sr = FALSE;
+ else
+ low_sr = TRUE;
+
+ }
+
+ if (intp->tuner_type[demod] == 3)
+ stv0900_set_tuner_auto(intp, intp->freq[demod],
+ intp->bw[demod], demod);
+ else
+ stv0900_set_tuner(fe, intp->freq[demod], intp->bw[demod]);
+
+ agc1_power = MAKEWORD(stv0900_get_bits(intp, AGCIQ_VALUE1),
+ stv0900_get_bits(intp, AGCIQ_VALUE0));
+
+ aq_power = 0;
+
+ if (agc1_power == 0) {
+ for (i = 0; i < 5; i++)
+ aq_power += (stv0900_get_bits(intp, POWER_I) +
+ stv0900_get_bits(intp, POWER_Q)) / 2;
+
+ aq_power /= 5;
+ }
+
+ if ((agc1_power == 0) && (aq_power < IQPOWER_THRESHOLD)) {
+ intp->result[demod].locked = FALSE;
+ signal_type = STV0900_NOAGC1;
+ dprintk("%s: NO AGC1, POWERI, POWERQ\n", __func__);
+ } else {
+ stv0900_write_bits(intp, SPECINV_CONTROL,
+ intp->srch_iq_inv[demod]);
+ if (intp->chip_id <= 0x20) /*cut 2.0*/
+ stv0900_write_bits(intp, MANUALSX_ROLLOFF, 1);
+ else /*cut 3.0*/
+ stv0900_write_bits(intp, MANUALS2_ROLLOFF, 1);
+
+ stv0900_set_search_standard(intp, demod);
+
+ if (intp->srch_algo[demod] != STV0900_BLIND_SEARCH)
+ stv0900_start_search(intp, demod);
+ }
+
+ if (signal_type == STV0900_NOAGC1)
+ return signal_type;
+
+ if (intp->chip_id == 0x12) {
+ stv0900_write_bits(intp, RST_HWARE, 0);
+ msleep(3);
+ stv0900_write_bits(intp, RST_HWARE, 1);
+ stv0900_write_bits(intp, RST_HWARE, 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(intp, demod, demod_timeout);
+
+ if ((lock == FALSE) && (algo == STV0900_COLD_START)) {
+ if (low_sr == FALSE) {
+ if (stv0900_check_timing_lock(intp, demod) == TRUE)
+ lock = stv0900_sw_algo(intp, demod);
+ }
+ }
+
+ if (lock == TRUE)
+ signal_type = stv0900_get_signal_params(fe);
+
+ if ((lock == TRUE) && (signal_type == STV0900_RANGEOK)) {
+ stv0900_track_optimization(fe);
+ if (intp->chip_id <= 0x11) {
+ if ((stv0900_get_standard(fe, 0) ==
+ STV0900_DVBS1_STANDARD) &&
+ (stv0900_get_standard(fe, 1) ==
+ STV0900_DVBS1_STANDARD)) {
+ msleep(20);
+ stv0900_write_bits(intp, RST_HWARE, 0);
+ } else {
+ stv0900_write_bits(intp, RST_HWARE, 0);
+ msleep(3);
+ stv0900_write_bits(intp, RST_HWARE, 1);
+ stv0900_write_bits(intp, RST_HWARE, 0);
+ }
+
+ } else if (intp->chip_id >= 0x20) {
+ stv0900_write_bits(intp, RST_HWARE, 0);
+ msleep(3);
+ stv0900_write_bits(intp, RST_HWARE, 1);
+ stv0900_write_bits(intp, RST_HWARE, 0);
+ }
+
+ if (stv0900_wait_for_lock(intp, demod,
+ fec_timeout, fec_timeout) == TRUE) {
+ lock = TRUE;
+ intp->result[demod].locked = TRUE;
+ if (intp->result[demod].standard ==
+ STV0900_DVBS2_STANDARD) {
+ stv0900_set_dvbs2_rolloff(intp, demod);
+ stv0900_write_bits(intp, RESET_UPKO_COUNT, 1);
+ stv0900_write_bits(intp, RESET_UPKO_COUNT, 0);
+ stv0900_write_reg(intp, ERRCTRL1, 0x67);
+ } else {
+ stv0900_write_reg(intp, ERRCTRL1, 0x75);
+ }
+
+ stv0900_write_reg(intp, FBERCPT4, 0);
+ stv0900_write_reg(intp, ERRCTRL2, 0xc1);
+ } else {
+ lock = FALSE;
+ signal_type = STV0900_NODATA;
+ no_signal = stv0900_check_signal_presence(intp, demod);
+
+ intp->result[demod].locked = FALSE;
+ }
+ }
+
+ if ((signal_type != STV0900_NODATA) || (no_signal != FALSE))
+ return signal_type;
+
+ if (intp->chip_id > 0x11) {
+ intp->result[demod].locked = FALSE;
+ return signal_type;
+ }
+
+ if ((stv0900_get_bits(intp, HEADER_MODE) == STV0900_DVBS_FOUND) &&
+ (intp->srch_iq_inv[demod] <= STV0900_IQ_AUTO_NORMAL_FIRST))
+ signal_type = stv0900_dvbs1_acq_workaround(fe);
+
+ return signal_type;
+}
+
Code Review / kvmfornfv.git / blobdiff