Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:
 "The first part of the media updates for Kernel 3.7.

  This series contain:

   - A major tree renaming patch series: now, drivers are organized
     internally by their used bus, instead of by V4L2 and/or DVB API,
     providing a cleaner driver location for hybrid drivers that
     implement both APIs, and allowing to cleanup the Kconfig items and
     make them more intuitive for the end user;

   - Media Kernel developers are typically very lazy with their duties
     of keeping the MAINTAINERS entries for their drivers updated.  As
     now the tree is more organized, we're doing an effort to add/update
     those entries for the drivers that aren't currently orphan;

   - Several DVB USB drivers got moved to a new DVB USB v2 core; the new
     core fixes several bugs (as the existing one that got bitroted).
     Now, suspend/resume finally started to work fine (at least with
     some devices - we should expect more work with regards to it);

   - added multistream support for DVB-T2, and unified the API for
     DVB-S2 and ISDB-S.  Backward binary support is preserved;

   - as usual, a few new drivers, some V4L2 core improvements and lots
     of drivers improvements and fixes.

  There are some points to notice on this series:

   1) you should expect a trivial merge conflict on your tree, with the
      removal of Documentation/feature-removal-schedule.txt: this series
      would be adding two additional entries there.  I opted to not
      rebase it due to this recent change;

   2) With regards to the PCTV 520e udev-related breakage, I opted to
      fix it in a way that the patches can be backported to 3.5 even
      without your firmware fix patch.  This way, Greg doesn't need to
      rush backporting your patch (as there are still the firmware cache
      and firmware path customization issues to be addressed there).

      I'll send later a patch (likely after the end of the merge window)
      reverting the rest of the DRX-K async firmware request, fully
      restoring its original behaviour to allow media drivers to
      initialize everything serialized as before for 3.7 and upper.

   3) I'm planning to work on this weekend to test the DMABUF patches
      for V4L2.  The patches are on my queue for several Kernel cycles,
      but, up to now, there is/was no way to test the series locally.

      I have some concerns about this particular changeset with regards
      to security issues, and with regards to the replacement of the old
      VIDIOC_OVERLAY ioctl's that is broken on modern systems, due to
      GPU drivers change.  The Overlay API allows direct PCI2PCI
      transfers from a media capture card into the GPU framebuffer, but
      its API is crappy.  Also, the only existing X11 driver that
      implements it requires a XV extension that is not available
      anymore on modern drivers.  The DMABUF can do the same thing, but
      with it is promising to be a properly-designed API.  If I can
      successfully test this series and be happy with it, I should be
      asking you to pull them next week."

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (717 commits)
  em28xx: regression fix: use DRX-K sync firmware requests on em28xx
  drxk: allow loading firmware synchrousnously
  em28xx: Make all em28xx extensions to be initialized asynchronously
  [media] tda18271: properly report read errors in tda18271_get_id
  [media] tda18271: delay IR & RF calibration until init() if delay_cal is set
  [media] MAINTAINERS: add Michael Krufky as tda827x maintainer
  [media] MAINTAINERS: add Michael Krufky as tda8290 maintainer
  [media] MAINTAINERS: add Michael Krufky as cxusb maintainer
  [media] MAINTAINERS: add Michael Krufky as lg2160 maintainer
  [media] MAINTAINERS: add Michael Krufky as lgdt3305 maintainer
  [media] MAINTAINERS: add Michael Krufky as mxl111sf maintainer
  [media] MAINTAINERS: add Michael Krufky as mxl5007t maintainer
  [media] MAINTAINERS: add Michael Krufky as tda18271 maintainer
  [media] s5p-tv: Report only multi-plane capabilities in vidioc_querycap
  [media] s5p-mfc: Fix misplaced return statement in s5p_mfc_suspend()
  [media] exynos-gsc: Add missing static storage class specifiers
  [media] exynos-gsc: Remove <linux/version.h> header file inclusion
  [media] s5p-fimc: Fix incorrect condition in fimc_lite_reqbufs()
  [media] s5p-tv: Fix potential NULL pointer dereference error
  [media] s5k6aa: Fix possible NULL pointer dereference
  ...

1 files changed, 2032 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 000000000000..4af20780fb9c
--- /dev/null
+++ b/drivers/media/dvb-frontends/stv0900_sw.c
@@ -0,0 +1,2032 @@
+/*
+ * 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 = 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;
+
+	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, &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");
+	case STV0900_SEARCH_DVBS2:
+		break;
+		dprintk("Search Standard = DVBS2\n");
+	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;
+}
+