[media] move the dvb/frontends to drivers/media/dvb-frontends

Raise the DVB frontends one level up, as the intention is to remove
the drivers/media/dvb directory.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 0 insertions, 1165 deletions

diff --git a/drivers/media/dvb/frontends/cx24123.c b/drivers/media/dvb/frontends/cx24123.c
deleted file mode 100644
index 7e28b4ee7d4f..000000000000
--- a/drivers/media/dvb/frontends/cx24123.c
+++ /dev/null
@@ -1,1165 +0,0 @@
-/*
- *   Conexant cx24123/cx24109 - DVB QPSK Satellite demod/tuner driver
- *
- *   Copyright (C) 2005 Steven Toth <stoth@linuxtv.org>
- *
- *   Support for KWorld DVB-S 100 by Vadim Catana <skystar@moldova.cc>
- *
- *   Support for CX24123/CX24113-NIM by Patrick Boettcher <pb@linuxtv.org>
- *
- *   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 <linux/slab.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-
-#include "dvb_frontend.h"
-#include "cx24123.h"
-
-#define XTAL 10111000
-
-static int force_band;
-module_param(force_band, int, 0644);
-MODULE_PARM_DESC(force_band, "Force a specific band select "\
-	"(1-9, default:off).");
-
-static int debug;
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "Activates frontend debugging (default:0)");
-
-#define info(args...) do { printk(KERN_INFO "CX24123: " args); } while (0)
-#define err(args...)  do { printk(KERN_ERR  "CX24123: " args); } while (0)
-
-#define dprintk(args...) \
-	do { \
-		if (debug) { \
-			printk(KERN_DEBUG "CX24123: %s: ", __func__); \
-			printk(args); \
-		} \
-	} while (0)
-
-struct cx24123_state {
-	struct i2c_adapter *i2c;
-	const struct cx24123_config *config;
-
-	struct dvb_frontend frontend;
-
-	/* Some PLL specifics for tuning */
-	u32 VCAarg;
-	u32 VGAarg;
-	u32 bandselectarg;
-	u32 pllarg;
-	u32 FILTune;
-
-	struct i2c_adapter tuner_i2c_adapter;
-
-	u8 demod_rev;
-
-	/* The Demod/Tuner can't easily provide these, we cache them */
-	u32 currentfreq;
-	u32 currentsymbolrate;
-};
-
-/* Various tuner defaults need to be established for a given symbol rate Sps */
-static struct cx24123_AGC_val {
-	u32 symbolrate_low;
-	u32 symbolrate_high;
-	u32 VCAprogdata;
-	u32 VGAprogdata;
-	u32 FILTune;
-} cx24123_AGC_vals[] =
-{
-	{
-		.symbolrate_low		= 1000000,
-		.symbolrate_high	= 4999999,
-		/* the specs recommend other values for VGA offsets,
-		   but tests show they are wrong */
-		.VGAprogdata		= (1 << 19) | (0x180 << 9) | 0x1e0,
-		.VCAprogdata		= (2 << 19) | (0x07 << 9) | 0x07,
-		.FILTune		= 0x27f /* 0.41 V */
-	},
-	{
-		.symbolrate_low		=  5000000,
-		.symbolrate_high	= 14999999,
-		.VGAprogdata		= (1 << 19) | (0x180 << 9) | 0x1e0,
-		.VCAprogdata		= (2 << 19) | (0x07 << 9) | 0x1f,
-		.FILTune		= 0x317 /* 0.90 V */
-	},
-	{
-		.symbolrate_low		= 15000000,
-		.symbolrate_high	= 45000000,
-		.VGAprogdata		= (1 << 19) | (0x100 << 9) | 0x180,
-		.VCAprogdata		= (2 << 19) | (0x07 << 9) | 0x3f,
-		.FILTune		= 0x145 /* 2.70 V */
-	},
-};
-
-/*
- * Various tuner defaults need to be established for a given frequency kHz.
- * fixme: The bounds on the bands do not match the doc in real life.
- * fixme: Some of them have been moved, other might need adjustment.
- */
-static struct cx24123_bandselect_val {
-	u32 freq_low;
-	u32 freq_high;
-	u32 VCOdivider;
-	u32 progdata;
-} cx24123_bandselect_vals[] =
-{
-	/* band 1 */
-	{
-		.freq_low	= 950000,
-		.freq_high	= 1074999,
-		.VCOdivider	= 4,
-		.progdata	= (0 << 19) | (0 << 9) | 0x40,
-	},
-
-	/* band 2 */
-	{
-		.freq_low	= 1075000,
-		.freq_high	= 1177999,
-		.VCOdivider	= 4,
-		.progdata	= (0 << 19) | (0 << 9) | 0x80,
-	},
-
-	/* band 3 */
-	{
-		.freq_low	= 1178000,
-		.freq_high	= 1295999,
-		.VCOdivider	= 2,
-		.progdata	= (0 << 19) | (1 << 9) | 0x01,
-	},
-
-	/* band 4 */
-	{
-		.freq_low	= 1296000,
-		.freq_high	= 1431999,
-		.VCOdivider	= 2,
-		.progdata	= (0 << 19) | (1 << 9) | 0x02,
-	},
-
-	/* band 5 */
-	{
-		.freq_low	= 1432000,
-		.freq_high	= 1575999,
-		.VCOdivider	= 2,
-		.progdata	= (0 << 19) | (1 << 9) | 0x04,
-	},
-
-	/* band 6 */
-	{
-		.freq_low	= 1576000,
-		.freq_high	= 1717999,
-		.VCOdivider	= 2,
-		.progdata	= (0 << 19) | (1 << 9) | 0x08,
-	},
-
-	/* band 7 */
-	{
-		.freq_low	= 1718000,
-		.freq_high	= 1855999,
-		.VCOdivider	= 2,
-		.progdata	= (0 << 19) | (1 << 9) | 0x10,
-	},
-
-	/* band 8 */
-	{
-		.freq_low	= 1856000,
-		.freq_high	= 2035999,
-		.VCOdivider	= 2,
-		.progdata	= (0 << 19) | (1 << 9) | 0x20,
-	},
-
-	/* band 9 */
-	{
-		.freq_low	= 2036000,
-		.freq_high	= 2150000,
-		.VCOdivider	= 2,
-		.progdata	= (0 << 19) | (1 << 9) | 0x40,
-	},
-};
-
-static struct {
-	u8 reg;
-	u8 data;
-} cx24123_regdata[] =
-{
-	{0x00, 0x03}, /* Reset system */
-	{0x00, 0x00}, /* Clear reset */
-	{0x03, 0x07}, /* QPSK, DVB, Auto Acquisition (default) */
-	{0x04, 0x10}, /* MPEG */
-	{0x05, 0x04}, /* MPEG */
-	{0x06, 0x31}, /* MPEG (default) */
-	{0x0b, 0x00}, /* Freq search start point (default) */
-	{0x0c, 0x00}, /* Demodulator sample gain (default) */
-	{0x0d, 0x7f}, /* Force driver to shift until the maximum (+-10 MHz) */
-	{0x0e, 0x03}, /* Default non-inverted, FEC 3/4 (default) */
-	{0x0f, 0xfe}, /* FEC search mask (all supported codes) */
-	{0x10, 0x01}, /* Default search inversion, no repeat (default) */
-	{0x16, 0x00}, /* Enable reading of frequency */
-	{0x17, 0x01}, /* Enable EsNO Ready Counter */
-	{0x1c, 0x80}, /* Enable error counter */
-	{0x20, 0x00}, /* Tuner burst clock rate = 500KHz */
-	{0x21, 0x15}, /* Tuner burst mode, word length = 0x15 */
-	{0x28, 0x00}, /* Enable FILTERV with positive pol., DiSEqC 2.x off */
-	{0x29, 0x00}, /* DiSEqC LNB_DC off */
-	{0x2a, 0xb0}, /* DiSEqC Parameters (default) */
-	{0x2b, 0x73}, /* DiSEqC Tone Frequency (default) */
-	{0x2c, 0x00}, /* DiSEqC Message (0x2c - 0x31) */
-	{0x2d, 0x00},
-	{0x2e, 0x00},
-	{0x2f, 0x00},
-	{0x30, 0x00},
-	{0x31, 0x00},
-	{0x32, 0x8c}, /* DiSEqC Parameters (default) */
-	{0x33, 0x00}, /* Interrupts off (0x33 - 0x34) */
-	{0x34, 0x00},
-	{0x35, 0x03}, /* DiSEqC Tone Amplitude (default) */
-	{0x36, 0x02}, /* DiSEqC Parameters (default) */
-	{0x37, 0x3a}, /* DiSEqC Parameters (default) */
-	{0x3a, 0x00}, /* Enable AGC accumulator (for signal strength) */
-	{0x44, 0x00}, /* Constellation (default) */
-	{0x45, 0x00}, /* Symbol count (default) */
-	{0x46, 0x0d}, /* Symbol rate estimator on (default) */
-	{0x56, 0xc1}, /* Error Counter = Viterbi BER */
-	{0x57, 0xff}, /* Error Counter Window (default) */
-	{0x5c, 0x20}, /* Acquisition AFC Expiration window (default is 0x10) */
-	{0x67, 0x83}, /* Non-DCII symbol clock */
-};
-
-static int cx24123_i2c_writereg(struct cx24123_state *state,
-	u8 i2c_addr, int reg, int data)
-{
-	u8 buf[] = { reg, data };
-	struct i2c_msg msg = {
-		.addr = i2c_addr, .flags = 0, .buf = buf, .len = 2
-	};
-	int err;
-
-	/* printk(KERN_DEBUG "wr(%02x): %02x %02x\n", i2c_addr, reg, data); */
-
-	err = i2c_transfer(state->i2c, &msg, 1);
-	if (err != 1) {
-		printk("%s: writereg error(err == %i, reg == 0x%02x,"
-			 " data == 0x%02x)\n", __func__, err, reg, data);
-		return err;
-	}
-
-	return 0;
-}
-
-static int cx24123_i2c_readreg(struct cx24123_state *state, u8 i2c_addr, u8 reg)
-{
-	int ret;
-	u8 b = 0;
-	struct i2c_msg msg[] = {
-		{ .addr = i2c_addr, .flags = 0, .buf = &reg, .len = 1 },
-		{ .addr = i2c_addr, .flags = I2C_M_RD, .buf = &b, .len = 1 }
-	};
-
-	ret = i2c_transfer(state->i2c, msg, 2);
-
-	if (ret != 2) {
-		err("%s: reg=0x%x (error=%d)\n", __func__, reg, ret);
-		return ret;
-	}
-
-	/* printk(KERN_DEBUG "rd(%02x): %02x %02x\n", i2c_addr, reg, b); */
-
-	return b;
-}
-
-#define cx24123_readreg(state, reg) \
-	cx24123_i2c_readreg(state, state->config->demod_address, reg)
-#define cx24123_writereg(state, reg, val) \
-	cx24123_i2c_writereg(state, state->config->demod_address, reg, val)
-
-static int cx24123_set_inversion(struct cx24123_state *state,
-	fe_spectral_inversion_t inversion)
-{
-	u8 nom_reg = cx24123_readreg(state, 0x0e);
-	u8 auto_reg = cx24123_readreg(state, 0x10);
-
-	switch (inversion) {
-	case INVERSION_OFF:
-		dprintk("inversion off\n");
-		cx24123_writereg(state, 0x0e, nom_reg & ~0x80);
-		cx24123_writereg(state, 0x10, auto_reg | 0x80);
-		break;
-	case INVERSION_ON:
-		dprintk("inversion on\n");
-		cx24123_writereg(state, 0x0e, nom_reg | 0x80);
-		cx24123_writereg(state, 0x10, auto_reg | 0x80);
-		break;
-	case INVERSION_AUTO:
-		dprintk("inversion auto\n");
-		cx24123_writereg(state, 0x10, auto_reg & ~0x80);
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int cx24123_get_inversion(struct cx24123_state *state,
-	fe_spectral_inversion_t *inversion)
-{
-	u8 val;
-
-	val = cx24123_readreg(state, 0x1b) >> 7;
-
-	if (val == 0) {
-		dprintk("read inversion off\n");
-		*inversion = INVERSION_OFF;
-	} else {
-		dprintk("read inversion on\n");
-		*inversion = INVERSION_ON;
-	}
-
-	return 0;
-}
-
-static int cx24123_set_fec(struct cx24123_state *state, fe_code_rate_t fec)
-{
-	u8 nom_reg = cx24123_readreg(state, 0x0e) & ~0x07;
-
-	if ((fec < FEC_NONE) || (fec > FEC_AUTO))
-		fec = FEC_AUTO;
-
-	/* Set the soft decision threshold */
-	if (fec == FEC_1_2)
-		cx24123_writereg(state, 0x43,
-			cx24123_readreg(state, 0x43) | 0x01);
-	else
-		cx24123_writereg(state, 0x43,
-			cx24123_readreg(state, 0x43) & ~0x01);
-
-	switch (fec) {
-	case FEC_1_2:
-		dprintk("set FEC to 1/2\n");
-		cx24123_writereg(state, 0x0e, nom_reg | 0x01);
-		cx24123_writereg(state, 0x0f, 0x02);
-		break;
-	case FEC_2_3:
-		dprintk("set FEC to 2/3\n");
-		cx24123_writereg(state, 0x0e, nom_reg | 0x02);
-		cx24123_writereg(state, 0x0f, 0x04);
-		break;
-	case FEC_3_4:
-		dprintk("set FEC to 3/4\n");
-		cx24123_writereg(state, 0x0e, nom_reg | 0x03);
-		cx24123_writereg(state, 0x0f, 0x08);
-		break;
-	case FEC_4_5:
-		dprintk("set FEC to 4/5\n");
-		cx24123_writereg(state, 0x0e, nom_reg | 0x04);
-		cx24123_writereg(state, 0x0f, 0x10);
-		break;
-	case FEC_5_6:
-		dprintk("set FEC to 5/6\n");
-		cx24123_writereg(state, 0x0e, nom_reg | 0x05);
-		cx24123_writereg(state, 0x0f, 0x20);
-		break;
-	case FEC_6_7:
-		dprintk("set FEC to 6/7\n");
-		cx24123_writereg(state, 0x0e, nom_reg | 0x06);
-		cx24123_writereg(state, 0x0f, 0x40);
-		break;
-	case FEC_7_8:
-		dprintk("set FEC to 7/8\n");
-		cx24123_writereg(state, 0x0e, nom_reg | 0x07);
-		cx24123_writereg(state, 0x0f, 0x80);
-		break;
-	case FEC_AUTO:
-		dprintk("set FEC to auto\n");
-		cx24123_writereg(state, 0x0f, 0xfe);
-		break;
-	default:
-		return -EOPNOTSUPP;
-	}
-
-	return 0;
-}
-
-static int cx24123_get_fec(struct cx24123_state *state, fe_code_rate_t *fec)
-{
-	int ret;
-
-	ret = cx24123_readreg(state, 0x1b);
-	if (ret < 0)
-		return ret;
-	ret = ret & 0x07;
-
-	switch (ret) {
-	case 1:
-		*fec = FEC_1_2;
-		break;
-	case 2:
-		*fec = FEC_2_3;
-		break;
-	case 3:
-		*fec = FEC_3_4;
-		break;
-	case 4:
-		*fec = FEC_4_5;
-		break;
-	case 5:
-		*fec = FEC_5_6;
-		break;
-	case 6:
-		*fec = FEC_6_7;
-		break;
-	case 7:
-		*fec = FEC_7_8;
-		break;
-	default:
-		/* this can happen when there's no lock */
-		*fec = FEC_NONE;
-	}
-
-	return 0;
-}
-
-/* Approximation of closest integer of log2(a/b). It actually gives the
-   lowest integer i such that 2^i >= round(a/b) */
-static u32 cx24123_int_log2(u32 a, u32 b)
-{
-	u32 exp, nearest = 0;
-	u32 div = a / b;
-	if (a % b >= b / 2)
-		++div;
-	if (div < (1 << 31)) {
-		for (exp = 1; div > exp; nearest++)
-			exp += exp;
-	}
-	return nearest;
-}
-
-static int cx24123_set_symbolrate(struct cx24123_state *state, u32 srate)
-{
-	u32 tmp, sample_rate, ratio, sample_gain;
-	u8 pll_mult;
-
-	/*  check if symbol rate is within limits */
-	if ((srate > state->frontend.ops.info.symbol_rate_max) ||
-	    (srate < state->frontend.ops.info.symbol_rate_min))
-		return -EOPNOTSUPP;
-
-	/* choose the sampling rate high enough for the required operation,
-	   while optimizing the power consumed by the demodulator */
-	if (srate < (XTAL*2)/2)
-		pll_mult = 2;
-	else if (srate < (XTAL*3)/2)
-		pll_mult = 3;
-	else if (srate < (XTAL*4)/2)
-		pll_mult = 4;
-	else if (srate < (XTAL*5)/2)
-		pll_mult = 5;
-	else if (srate < (XTAL*6)/2)
-		pll_mult = 6;
-	else if (srate < (XTAL*7)/2)
-		pll_mult = 7;
-	else if (srate < (XTAL*8)/2)
-		pll_mult = 8;
-	else
-		pll_mult = 9;
-
-
-	sample_rate = pll_mult * XTAL;
-
-	/*
-	    SYSSymbolRate[21:0] = (srate << 23) / sample_rate
-
-	    We have to use 32 bit unsigned arithmetic without precision loss.
-	    The maximum srate is 45000000 or 0x02AEA540. This number has
-	    only 6 clear bits on top, hence we can shift it left only 6 bits
-	    at a time. Borrowed from cx24110.c
-	*/
-
-	tmp = srate << 6;
-	ratio = tmp / sample_rate;
-
-	tmp = (tmp % sample_rate) << 6;
-	ratio = (ratio << 6) + (tmp / sample_rate);
-
-	tmp = (tmp % sample_rate) << 6;
-	ratio = (ratio << 6) + (tmp / sample_rate);
-
-	tmp = (tmp % sample_rate) << 5;
-	ratio = (ratio << 5) + (tmp / sample_rate);
-
-
-	cx24123_writereg(state, 0x01, pll_mult * 6);
-
-	cx24123_writereg(state, 0x08, (ratio >> 16) & 0x3f);
-	cx24123_writereg(state, 0x09, (ratio >> 8) & 0xff);
-	cx24123_writereg(state, 0x0a, ratio & 0xff);
-
-	/* also set the demodulator sample gain */
-	sample_gain = cx24123_int_log2(sample_rate, srate);
-	tmp = cx24123_readreg(state, 0x0c) & ~0xe0;
-	cx24123_writereg(state, 0x0c, tmp | sample_gain << 5);
-
-	dprintk("srate=%d, ratio=0x%08x, sample_rate=%i sample_gain=%d\n",
-		srate, ratio, sample_rate, sample_gain);
-
-	return 0;
-}
-
-/*
- * Based on the required frequency and symbolrate, the tuner AGC has
- * to be configured and the correct band selected.
- * Calculate those values.
- */
-static int cx24123_pll_calculate(struct dvb_frontend *fe)
-{
-	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
-	struct cx24123_state *state = fe->demodulator_priv;
-	u32 ndiv = 0, adiv = 0, vco_div = 0;
-	int i = 0;
-	int pump = 2;
-	int band = 0;
-	int num_bands = ARRAY_SIZE(cx24123_bandselect_vals);
-	struct cx24123_bandselect_val *bsv = NULL;
-	struct cx24123_AGC_val *agcv = NULL;
-
-	/* Defaults for low freq, low rate */
-	state->VCAarg = cx24123_AGC_vals[0].VCAprogdata;
-	state->VGAarg = cx24123_AGC_vals[0].VGAprogdata;
-	state->bandselectarg = cx24123_bandselect_vals[0].progdata;
-	vco_div = cx24123_bandselect_vals[0].VCOdivider;
-
-	/* For the given symbol rate, determine the VCA, VGA and
-	 * FILTUNE programming bits */
-	for (i = 0; i < ARRAY_SIZE(cx24123_AGC_vals); i++) {
-		agcv = &cx24123_AGC_vals[i];
-		if ((agcv->symbolrate_low <= p->symbol_rate) &&
-		    (agcv->symbolrate_high >= p->symbol_rate)) {
-			state->VCAarg = agcv->VCAprogdata;
-			state->VGAarg = agcv->VGAprogdata;
-			state->FILTune = agcv->FILTune;
-		}
-	}
-
-	/* determine the band to use */
-	if (force_band < 1 || force_band > num_bands) {
-		for (i = 0; i < num_bands; i++) {
-			bsv = &cx24123_bandselect_vals[i];
-			if ((bsv->freq_low <= p->frequency) &&
-				(bsv->freq_high >= p->frequency))
-				band = i;
-		}
-	} else
-		band = force_band - 1;
-
-	state->bandselectarg = cx24123_bandselect_vals[band].progdata;
-	vco_div = cx24123_bandselect_vals[band].VCOdivider;
-
-	/* determine the charge pump current */
-	if (p->frequency < (cx24123_bandselect_vals[band].freq_low +
-		cx24123_bandselect_vals[band].freq_high) / 2)
-		pump = 0x01;
-	else
-		pump = 0x02;
-
-	/* Determine the N/A dividers for the requested lband freq (in kHz). */
-	/* Note: the reference divider R=10, frequency is in KHz,
-	 * XTAL is in Hz */
-	ndiv = (((p->frequency * vco_div * 10) /
-		(2 * XTAL / 1000)) / 32) & 0x1ff;
-	adiv = (((p->frequency * vco_div * 10) /
-		(2 * XTAL / 1000)) % 32) & 0x1f;
-
-	if (adiv == 0 && ndiv > 0)
-		ndiv--;
-
-	/* control bits 11, refdiv 11, charge pump polarity 1,
-	 * charge pump current, ndiv, adiv */
-	state->pllarg = (3 << 19) | (3 << 17) | (1 << 16) |
-		(pump << 14) | (ndiv << 5) | adiv;
-
-	return 0;
-}
-
-/*
- * Tuner data is 21 bits long, must be left-aligned in data.
- * Tuner cx24109 is written through a dedicated 3wire interface
- * on the demod chip.
- */
-static int cx24123_pll_writereg(struct dvb_frontend *fe, u32 data)
-{
-	struct cx24123_state *state = fe->demodulator_priv;
-	unsigned long timeout;
-
-	dprintk("pll writereg called, data=0x%08x\n", data);
-
-	/* align the 21 bytes into to bit23 boundary */
-	data = data << 3;
-
-	/* Reset the demod pll word length to 0x15 bits */
-	cx24123_writereg(state, 0x21, 0x15);
-
-	/* write the msb 8 bits, wait for the send to be completed */
-	timeout = jiffies + msecs_to_jiffies(40);
-	cx24123_writereg(state, 0x22, (data >> 16) & 0xff);
-	while ((cx24123_readreg(state, 0x20) & 0x40) == 0) {
-		if (time_after(jiffies, timeout)) {
-			err("%s:  demodulator is not responding, "\
-				"possibly hung, aborting.\n", __func__);
-			return -EREMOTEIO;
-		}
-		msleep(10);
-	}
-
-	/* send another 8 bytes, wait for the send to be completed */
-	timeout = jiffies + msecs_to_jiffies(40);
-	cx24123_writereg(state, 0x22, (data >> 8) & 0xff);
-	while ((cx24123_readreg(state, 0x20) & 0x40) == 0) {
-		if (time_after(jiffies, timeout)) {
-			err("%s:  demodulator is not responding, "\
-				"possibly hung, aborting.\n", __func__);
-			return -EREMOTEIO;
-		}
-		msleep(10);
-	}
-
-	/* send the lower 5 bits of this byte, padded with 3 LBB,
-	 * wait for the send to be completed */
-	timeout = jiffies + msecs_to_jiffies(40);
-	cx24123_writereg(state, 0x22, (data) & 0xff);
-	while ((cx24123_readreg(state, 0x20) & 0x80)) {
-		if (time_after(jiffies, timeout)) {
-			err("%s:  demodulator is not responding," \
-				"possibly hung, aborting.\n", __func__);
-			return -EREMOTEIO;
-		}
-		msleep(10);
-	}
-
-	/* Trigger the demod to configure the tuner */
-	cx24123_writereg(state, 0x20, cx24123_readreg(state, 0x20) | 2);
-	cx24123_writereg(state, 0x20, cx24123_readreg(state, 0x20) & 0xfd);
-
-	return 0;
-}
-
-static int cx24123_pll_tune(struct dvb_frontend *fe)
-{
-	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
-	struct cx24123_state *state = fe->demodulator_priv;
-	u8 val;
-
-	dprintk("frequency=%i\n", p->frequency);
-
-	if (cx24123_pll_calculate(fe) != 0) {
-		err("%s: cx24123_pll_calcutate failed\n", __func__);
-		return -EINVAL;
-	}
-
-	/* Write the new VCO/VGA */
-	cx24123_pll_writereg(fe, state->VCAarg);
-	cx24123_pll_writereg(fe, state->VGAarg);
-
-	/* Write the new bandselect and pll args */
-	cx24123_pll_writereg(fe, state->bandselectarg);
-	cx24123_pll_writereg(fe, state->pllarg);
-
-	/* set the FILTUNE voltage */
-	val = cx24123_readreg(state, 0x28) & ~0x3;
-	cx24123_writereg(state, 0x27, state->FILTune >> 2);
-	cx24123_writereg(state, 0x28, val | (state->FILTune & 0x3));
-
-	dprintk("pll tune VCA=%d, band=%d, pll=%d\n", state->VCAarg,
-			state->bandselectarg, state->pllarg);
-
-	return 0;
-}
-
-
-/*
- * 0x23:
- *    [7:7] = BTI enabled
- *    [6:6] = I2C repeater enabled
- *    [5:5] = I2C repeater start
- *    [0:0] = BTI start
- */
-
-/* mode == 1 -> i2c-repeater, 0 -> bti */
-static int cx24123_repeater_mode(struct cx24123_state *state, u8 mode, u8 start)
-{
-	u8 r = cx24123_readreg(state, 0x23) & 0x1e;
-	if (mode)
-		r |= (1 << 6) | (start << 5);
-	else
-		r |= (1 << 7) | (start);
-	return cx24123_writereg(state, 0x23, r);
-}
-
-static int cx24123_initfe(struct dvb_frontend *fe)
-{
-	struct cx24123_state *state = fe->demodulator_priv;
-	int i;
-
-	dprintk("init frontend\n");
-
-	/* Configure the demod to a good set of defaults */
-	for (i = 0; i < ARRAY_SIZE(cx24123_regdata); i++)
-		cx24123_writereg(state, cx24123_regdata[i].reg,
-			cx24123_regdata[i].data);
-
-	/* Set the LNB polarity */
-	if (state->config->lnb_polarity)
-		cx24123_writereg(state, 0x32,
-			cx24123_readreg(state, 0x32) | 0x02);
-
-	if (state->config->dont_use_pll)
-		cx24123_repeater_mode(state, 1, 0);
-
-	return 0;
-}
-
-static int cx24123_set_voltage(struct dvb_frontend *fe,
-	fe_sec_voltage_t voltage)
-{
-	struct cx24123_state *state = fe->demodulator_priv;
-	u8 val;
-
-	val = cx24123_readreg(state, 0x29) & ~0x40;
-
-	switch (voltage) {
-	case SEC_VOLTAGE_13:
-		dprintk("setting voltage 13V\n");
-		return cx24123_writereg(state, 0x29, val & 0x7f);
-	case SEC_VOLTAGE_18:
-		dprintk("setting voltage 18V\n");
-		return cx24123_writereg(state, 0x29, val | 0x80);
-	case SEC_VOLTAGE_OFF:
-		/* already handled in cx88-dvb */
-		return 0;
-	default:
-		return -EINVAL;
-	};
-
-	return 0;
-}
-
-/* wait for diseqc queue to become ready (or timeout) */
-static void cx24123_wait_for_diseqc(struct cx24123_state *state)
-{
-	unsigned long timeout = jiffies + msecs_to_jiffies(200);
-	while (!(cx24123_readreg(state, 0x29) & 0x40)) {
-		if (time_after(jiffies, timeout)) {
-			err("%s: diseqc queue not ready, " \
-				"command may be lost.\n", __func__);
-			break;
-		}
-		msleep(10);
-	}
-}
-
-static int cx24123_send_diseqc_msg(struct dvb_frontend *fe,
-	struct dvb_diseqc_master_cmd *cmd)
-{
-	struct cx24123_state *state = fe->demodulator_priv;
-	int i, val, tone;
-
-	dprintk("\n");
-
-	/* stop continuous tone if enabled */
-	tone = cx24123_readreg(state, 0x29);
-	if (tone & 0x10)
-		cx24123_writereg(state, 0x29, tone & ~0x50);
-
-	/* wait for diseqc queue ready */
-	cx24123_wait_for_diseqc(state);
-
-	/* select tone mode */
-	cx24123_writereg(state, 0x2a, cx24123_readreg(state, 0x2a) & 0xfb);
-
-	for (i = 0; i < cmd->msg_len; i++)
-		cx24123_writereg(state, 0x2C + i, cmd->msg[i]);
-
-	val = cx24123_readreg(state, 0x29);
-	cx24123_writereg(state, 0x29, ((val & 0x90) | 0x40) |
-		((cmd->msg_len-3) & 3));
-
-	/* wait for diseqc message to finish sending */
-	cx24123_wait_for_diseqc(state);
-
-	/* restart continuous tone if enabled */
-	if (tone & 0x10)
-		cx24123_writereg(state, 0x29, tone & ~0x40);
-
-	return 0;
-}
-
-static int cx24123_diseqc_send_burst(struct dvb_frontend *fe,
-	fe_sec_mini_cmd_t burst)
-{
-	struct cx24123_state *state = fe->demodulator_priv;
-	int val, tone;
-
-	dprintk("\n");
-
-	/* stop continuous tone if enabled */
-	tone = cx24123_readreg(state, 0x29);
-	if (tone & 0x10)
-		cx24123_writereg(state, 0x29, tone & ~0x50);
-
-	/* wait for diseqc queue ready */
-	cx24123_wait_for_diseqc(state);
-
-	/* select tone mode */
-	cx24123_writereg(state, 0x2a, cx24123_readreg(state, 0x2a) | 0x4);
-	msleep(30);
-	val = cx24123_readreg(state, 0x29);
-	if (burst == SEC_MINI_A)
-		cx24123_writereg(state, 0x29, ((val & 0x90) | 0x40 | 0x00));
-	else if (burst == SEC_MINI_B)
-		cx24123_writereg(state, 0x29, ((val & 0x90) | 0x40 | 0x08));
-	else
-		return -EINVAL;
-
-	cx24123_wait_for_diseqc(state);
-	cx24123_writereg(state, 0x2a, cx24123_readreg(state, 0x2a) & 0xfb);
-
-	/* restart continuous tone if enabled */
-	if (tone & 0x10)
-		cx24123_writereg(state, 0x29, tone & ~0x40);
-
-	return 0;
-}
-
-static int cx24123_read_status(struct dvb_frontend *fe, fe_status_t *status)
-{
-	struct cx24123_state *state = fe->demodulator_priv;
-	int sync = cx24123_readreg(state, 0x14);
-
-	*status = 0;
-	if (state->config->dont_use_pll) {
-		u32 tun_status = 0;
-		if (fe->ops.tuner_ops.get_status)
-			fe->ops.tuner_ops.get_status(fe, &tun_status);
-		if (tun_status & TUNER_STATUS_LOCKED)
-			*status |= FE_HAS_SIGNAL;
-	} else {
-		int lock = cx24123_readreg(state, 0x20);
-		if (lock & 0x01)
-			*status |= FE_HAS_SIGNAL;
-	}
-
-	if (sync & 0x02)
-		*status |= FE_HAS_CARRIER;	/* Phase locked */
-	if (sync & 0x04)
-		*status |= FE_HAS_VITERBI;
-
-	/* Reed-Solomon Status */
-	if (sync & 0x08)
-		*status |= FE_HAS_SYNC;
-	if (sync & 0x80)
-		*status |= FE_HAS_LOCK;		/*Full Sync */
-
-	return 0;
-}
-
-/*
- * Configured to return the measurement of errors in blocks,
- * because no UCBLOCKS value is available, so this value doubles up
- * to satisfy both measurements.
- */
-static int cx24123_read_ber(struct dvb_frontend *fe, u32 *ber)
-{
-	struct cx24123_state *state = fe->demodulator_priv;
-
-	/* The true bit error rate is this value divided by
-	   the window size (set as 256 * 255) */
-	*ber = ((cx24123_readreg(state, 0x1c) & 0x3f) << 16) |
-		(cx24123_readreg(state, 0x1d) << 8 |
-		 cx24123_readreg(state, 0x1e));
-
-	dprintk("BER = %d\n", *ber);
-
-	return 0;
-}
-
-static int cx24123_read_signal_strength(struct dvb_frontend *fe,
-	u16 *signal_strength)
-{
-	struct cx24123_state *state = fe->demodulator_priv;
-
-	/* larger = better */
-	*signal_strength = cx24123_readreg(state, 0x3b) << 8;
-
-	dprintk("Signal strength = %d\n", *signal_strength);
-
-	return 0;
-}
-
-static int cx24123_read_snr(struct dvb_frontend *fe, u16 *snr)
-{
-	struct cx24123_state *state = fe->demodulator_priv;
-
-	/* Inverted raw Es/N0 count, totally bogus but better than the
-	   BER threshold. */
-	*snr = 65535 - (((u16)cx24123_readreg(state, 0x18) << 8) |
-			 (u16)cx24123_readreg(state, 0x19));
-
-	dprintk("read S/N index = %d\n", *snr);
-
-	return 0;
-}
-
-static int cx24123_set_frontend(struct dvb_frontend *fe)
-{
-	struct cx24123_state *state = fe->demodulator_priv;
-	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
-
-	dprintk("\n");
-
-	if (state->config->set_ts_params)
-		state->config->set_ts_params(fe, 0);
-
-	state->currentfreq = p->frequency;
-	state->currentsymbolrate = p->symbol_rate;
-
-	cx24123_set_inversion(state, p->inversion);
-	cx24123_set_fec(state, p->fec_inner);
-	cx24123_set_symbolrate(state, p->symbol_rate);
-
-	if (!state->config->dont_use_pll)
-		cx24123_pll_tune(fe);
-	else if (fe->ops.tuner_ops.set_params)
-		fe->ops.tuner_ops.set_params(fe);
-	else
-		err("it seems I don't have a tuner...");
-
-	/* Enable automatic acquisition and reset cycle */
-	cx24123_writereg(state, 0x03, (cx24123_readreg(state, 0x03) | 0x07));
-	cx24123_writereg(state, 0x00, 0x10);
-	cx24123_writereg(state, 0x00, 0);
-
-	if (state->config->agc_callback)
-		state->config->agc_callback(fe);
-
-	return 0;
-}
-
-static int cx24123_get_frontend(struct dvb_frontend *fe)
-{
-	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
-	struct cx24123_state *state = fe->demodulator_priv;
-
-	dprintk("\n");
-
-	if (cx24123_get_inversion(state, &p->inversion) != 0) {
-		err("%s: Failed to get inversion status\n", __func__);
-		return -EREMOTEIO;
-	}
-	if (cx24123_get_fec(state, &p->fec_inner) != 0) {
-		err("%s: Failed to get fec status\n", __func__);
-		return -EREMOTEIO;
-	}
-	p->frequency = state->currentfreq;
-	p->symbol_rate = state->currentsymbolrate;
-
-	return 0;
-}
-
-static int cx24123_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
-{
-	struct cx24123_state *state = fe->demodulator_priv;
-	u8 val;
-
-	/* wait for diseqc queue ready */
-	cx24123_wait_for_diseqc(state);
-
-	val = cx24123_readreg(state, 0x29) & ~0x40;
-
-	switch (tone) {
-	case SEC_TONE_ON:
-		dprintk("setting tone on\n");
-		return cx24123_writereg(state, 0x29, val | 0x10);
-	case SEC_TONE_OFF:
-		dprintk("setting tone off\n");
-		return cx24123_writereg(state, 0x29, val & 0xef);
-	default:
-		err("CASE reached default with tone=%d\n", tone);
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int cx24123_tune(struct dvb_frontend *fe,
-			bool re_tune,
-			unsigned int mode_flags,
-			unsigned int *delay,
-			fe_status_t *status)
-{
-	int retval = 0;
-
-	if (re_tune)
-		retval = cx24123_set_frontend(fe);
-
-	if (!(mode_flags & FE_TUNE_MODE_ONESHOT))
-		cx24123_read_status(fe, status);
-	*delay = HZ/10;
-
-	return retval;
-}
-
-static int cx24123_get_algo(struct dvb_frontend *fe)
-{
-	return 1; /* FE_ALGO_HW */
-}
-
-static void cx24123_release(struct dvb_frontend *fe)
-{
-	struct cx24123_state *state = fe->demodulator_priv;
-	dprintk("\n");
-	i2c_del_adapter(&state->tuner_i2c_adapter);
-	kfree(state);
-}
-
-static int cx24123_tuner_i2c_tuner_xfer(struct i2c_adapter *i2c_adap,
-	struct i2c_msg msg[], int num)
-{
-	struct cx24123_state *state = i2c_get_adapdata(i2c_adap);
-	/* this repeater closes after the first stop */
-	cx24123_repeater_mode(state, 1, 1);
-	return i2c_transfer(state->i2c, msg, num);
-}
-
-static u32 cx24123_tuner_i2c_func(struct i2c_adapter *adapter)
-{
-	return I2C_FUNC_I2C;
-}
-
-static struct i2c_algorithm cx24123_tuner_i2c_algo = {
-	.master_xfer   = cx24123_tuner_i2c_tuner_xfer,
-	.functionality = cx24123_tuner_i2c_func,
-};
-
-struct i2c_adapter *
-	cx24123_get_tuner_i2c_adapter(struct dvb_frontend *fe)
-{
-	struct cx24123_state *state = fe->demodulator_priv;
-	return &state->tuner_i2c_adapter;
-}
-EXPORT_SYMBOL(cx24123_get_tuner_i2c_adapter);
-
-static struct dvb_frontend_ops cx24123_ops;
-
-struct dvb_frontend *cx24123_attach(const struct cx24123_config *config,
-				    struct i2c_adapter *i2c)
-{
-	/* allocate memory for the internal state */
-	struct cx24123_state *state =
-		kzalloc(sizeof(struct cx24123_state), GFP_KERNEL);
-
-	dprintk("\n");
-	if (state == NULL) {
-		err("Unable to kzalloc\n");
-		goto error;
-	}
-
-	/* setup the state */
-	state->config = config;
-	state->i2c = i2c;
-
-	/* check if the demod is there */
-	state->demod_rev = cx24123_readreg(state, 0x00);
-	switch (state->demod_rev) {
-	case 0xe1:
-		info("detected CX24123C\n");
-		break;
-	case 0xd1:
-		info("detected CX24123\n");
-		break;
-	default:
-		err("wrong demod revision: %x\n", state->demod_rev);
-		goto error;
-	}
-
-	/* create dvb_frontend */
-	memcpy(&state->frontend.ops, &cx24123_ops,
-		sizeof(struct dvb_frontend_ops));
-	state->frontend.demodulator_priv = state;
-
-	/* create tuner i2c adapter */
-	if (config->dont_use_pll)
-		cx24123_repeater_mode(state, 1, 0);
-
-	strlcpy(state->tuner_i2c_adapter.name, "CX24123 tuner I2C bus",
-		sizeof(state->tuner_i2c_adapter.name));
-	state->tuner_i2c_adapter.algo      = &cx24123_tuner_i2c_algo;
-	state->tuner_i2c_adapter.algo_data = NULL;
-	i2c_set_adapdata(&state->tuner_i2c_adapter, state);
-	if (i2c_add_adapter(&state->tuner_i2c_adapter) < 0) {
-		err("tuner i2c bus could not be initialized\n");
-		goto error;
-	}
-
-	return &state->frontend;
-
-error:
-	kfree(state);
-
-	return NULL;
-}
-EXPORT_SYMBOL(cx24123_attach);
-
-static struct dvb_frontend_ops cx24123_ops = {
-	.delsys = { SYS_DVBS },
-	.info = {
-		.name = "Conexant CX24123/CX24109",
-		.frequency_min = 950000,
-		.frequency_max = 2150000,
-		.frequency_stepsize = 1011, /* kHz for QPSK frontends */
-		.frequency_tolerance = 5000,
-		.symbol_rate_min = 1000000,
-		.symbol_rate_max = 45000000,
-		.caps = FE_CAN_INVERSION_AUTO |
-			FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
-			FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 |
-			FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
-			FE_CAN_QPSK | FE_CAN_RECOVER
-	},
-
-	.release = cx24123_release,
-
-	.init = cx24123_initfe,
-	.set_frontend = cx24123_set_frontend,
-	.get_frontend = cx24123_get_frontend,
-	.read_status = cx24123_read_status,
-	.read_ber = cx24123_read_ber,
-	.read_signal_strength = cx24123_read_signal_strength,
-	.read_snr = cx24123_read_snr,
-	.diseqc_send_master_cmd = cx24123_send_diseqc_msg,
-	.diseqc_send_burst = cx24123_diseqc_send_burst,
-	.set_tone = cx24123_set_tone,
-	.set_voltage = cx24123_set_voltage,
-	.tune = cx24123_tune,
-	.get_frontend_algo = cx24123_get_algo,
-};
-
-MODULE_DESCRIPTION("DVB Frontend module for Conexant " \
-	"CX24123/CX24109/CX24113 hardware");
-MODULE_AUTHOR("Steven Toth");
-MODULE_LICENSE("GPL");
-