[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, 831 deletions

diff --git a/drivers/media/dvb/frontends/lgdt330x.c b/drivers/media/dvb/frontends/lgdt330x.c
deleted file mode 100644
index e046622df0e..00000000000
--- a/drivers/media/dvb/frontends/lgdt330x.c
+++ /dev/null
@@ -1,831 +0,0 @@
-/*
- *    Support for LGDT3302 and LGDT3303 - VSB/QAM
- *
- *    Copyright (C) 2005 Wilson Michaels <wilsonmichaels@earthlink.net>
- *
- *    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.
- *
- */
-
-/*
- *                      NOTES ABOUT THIS DRIVER
- *
- * This Linux driver supports:
- *   DViCO FusionHDTV 3 Gold-Q
- *   DViCO FusionHDTV 3 Gold-T
- *   DViCO FusionHDTV 5 Gold
- *   DViCO FusionHDTV 5 Lite
- *   DViCO FusionHDTV 5 USB Gold
- *   Air2PC/AirStar 2 ATSC 3rd generation (HD5000)
- *   pcHDTV HD5500
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <asm/byteorder.h>
-
-#include "dvb_frontend.h"
-#include "dvb_math.h"
-#include "lgdt330x_priv.h"
-#include "lgdt330x.h"
-
-/* Use Equalizer Mean Squared Error instead of Phaser Tracker MSE */
-/* #define USE_EQMSE */
-
-static int debug;
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug,"Turn on/off lgdt330x frontend debugging (default:off).");
-#define dprintk(args...) \
-do { \
-if (debug) printk(KERN_DEBUG "lgdt330x: " args); \
-} while (0)
-
-struct lgdt330x_state
-{
-	struct i2c_adapter* i2c;
-
-	/* Configuration settings */
-	const struct lgdt330x_config* config;
-
-	struct dvb_frontend frontend;
-
-	/* Demodulator private data */
-	fe_modulation_t current_modulation;
-	u32 snr; /* Result of last SNR calculation */
-
-	/* Tuner private data */
-	u32 current_frequency;
-};
-
-static int i2c_write_demod_bytes (struct lgdt330x_state* state,
-				  u8 *buf, /* data bytes to send */
-				  int len  /* number of bytes to send */ )
-{
-	struct i2c_msg msg =
-		{ .addr = state->config->demod_address,
-		  .flags = 0,
-		  .buf = buf,
-		  .len = 2 };
-	int i;
-	int err;
-
-	for (i=0; i<len-1; i+=2){
-		if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
-			printk(KERN_WARNING "lgdt330x: %s error (addr %02x <- %02x, err = %i)\n", __func__, msg.buf[0], msg.buf[1], err);
-			if (err < 0)
-				return err;
-			else
-				return -EREMOTEIO;
-		}
-		msg.buf += 2;
-	}
-	return 0;
-}
-
-/*
- * This routine writes the register (reg) to the demod bus
- * then reads the data returned for (len) bytes.
- */
-
-static int i2c_read_demod_bytes(struct lgdt330x_state *state,
-				enum I2C_REG reg, u8 *buf, int len)
-{
-	u8 wr [] = { reg };
-	struct i2c_msg msg [] = {
-		{ .addr = state->config->demod_address,
-		  .flags = 0, .buf = wr,  .len = 1 },
-		{ .addr = state->config->demod_address,
-		  .flags = I2C_M_RD, .buf = buf, .len = len },
-	};
-	int ret;
-	ret = i2c_transfer(state->i2c, msg, 2);
-	if (ret != 2) {
-		printk(KERN_WARNING "lgdt330x: %s: addr 0x%02x select 0x%02x error (ret == %i)\n", __func__, state->config->demod_address, reg, ret);
-		if (ret >= 0)
-			ret = -EIO;
-	} else {
-		ret = 0;
-	}
-	return ret;
-}
-
-/* Software reset */
-static int lgdt3302_SwReset(struct lgdt330x_state* state)
-{
-	u8 ret;
-	u8 reset[] = {
-		IRQ_MASK,
-		0x00 /* bit 6 is active low software reset
-		      *	bits 5-0 are 1 to mask interrupts */
-	};
-
-	ret = i2c_write_demod_bytes(state,
-				    reset, sizeof(reset));
-	if (ret == 0) {
-
-		/* force reset high (inactive) and unmask interrupts */
-		reset[1] = 0x7f;
-		ret = i2c_write_demod_bytes(state,
-					    reset, sizeof(reset));
-	}
-	return ret;
-}
-
-static int lgdt3303_SwReset(struct lgdt330x_state* state)
-{
-	u8 ret;
-	u8 reset[] = {
-		0x02,
-		0x00 /* bit 0 is active low software reset */
-	};
-
-	ret = i2c_write_demod_bytes(state,
-				    reset, sizeof(reset));
-	if (ret == 0) {
-
-		/* force reset high (inactive) */
-		reset[1] = 0x01;
-		ret = i2c_write_demod_bytes(state,
-					    reset, sizeof(reset));
-	}
-	return ret;
-}
-
-static int lgdt330x_SwReset(struct lgdt330x_state* state)
-{
-	switch (state->config->demod_chip) {
-	case LGDT3302:
-		return lgdt3302_SwReset(state);
-	case LGDT3303:
-		return lgdt3303_SwReset(state);
-	default:
-		return -ENODEV;
-	}
-}
-
-static int lgdt330x_init(struct dvb_frontend* fe)
-{
-	/* Hardware reset is done using gpio[0] of cx23880x chip.
-	 * I'd like to do it here, but don't know how to find chip address.
-	 * cx88-cards.c arranges for the reset bit to be inactive (high).
-	 * Maybe there needs to be a callable function in cx88-core or
-	 * the caller of this function needs to do it. */
-
-	/*
-	 * Array of byte pairs <address, value>
-	 * to initialize each different chip
-	 */
-	static u8 lgdt3302_init_data[] = {
-		/* Use 50MHz parameter values from spec sheet since xtal is 50 */
-		/* Change the value of NCOCTFV[25:0] of carrier
-		   recovery center frequency register */
-		VSB_CARRIER_FREQ0, 0x00,
-		VSB_CARRIER_FREQ1, 0x87,
-		VSB_CARRIER_FREQ2, 0x8e,
-		VSB_CARRIER_FREQ3, 0x01,
-		/* Change the TPCLK pin polarity
-		   data is valid on falling clock */
-		DEMUX_CONTROL, 0xfb,
-		/* Change the value of IFBW[11:0] of
-		   AGC IF/RF loop filter bandwidth register */
-		AGC_RF_BANDWIDTH0, 0x40,
-		AGC_RF_BANDWIDTH1, 0x93,
-		AGC_RF_BANDWIDTH2, 0x00,
-		/* Change the value of bit 6, 'nINAGCBY' and
-		   'NSSEL[1:0] of ACG function control register 2 */
-		AGC_FUNC_CTRL2, 0xc6,
-		/* Change the value of bit 6 'RFFIX'
-		   of AGC function control register 3 */
-		AGC_FUNC_CTRL3, 0x40,
-		/* Set the value of 'INLVTHD' register 0x2a/0x2c
-		   to 0x7fe */
-		AGC_DELAY0, 0x07,
-		AGC_DELAY2, 0xfe,
-		/* Change the value of IAGCBW[15:8]
-		   of inner AGC loop filter bandwidth */
-		AGC_LOOP_BANDWIDTH0, 0x08,
-		AGC_LOOP_BANDWIDTH1, 0x9a
-	};
-
-	static u8 lgdt3303_init_data[] = {
-		0x4c, 0x14
-	};
-
-	static u8 flip_1_lgdt3303_init_data[] = {
-		0x4c, 0x14,
-		0x87, 0xf3
-	};
-
-	static u8 flip_2_lgdt3303_init_data[] = {
-		0x4c, 0x14,
-		0x87, 0xda
-	};
-
-	struct lgdt330x_state* state = fe->demodulator_priv;
-	char  *chip_name;
-	int    err;
-
-	switch (state->config->demod_chip) {
-	case LGDT3302:
-		chip_name = "LGDT3302";
-		err = i2c_write_demod_bytes(state, lgdt3302_init_data,
-					    sizeof(lgdt3302_init_data));
-		break;
-	case LGDT3303:
-		chip_name = "LGDT3303";
-		switch (state->config->clock_polarity_flip) {
-		case 2:
-			err = i2c_write_demod_bytes(state,
-					flip_2_lgdt3303_init_data,
-					sizeof(flip_2_lgdt3303_init_data));
-			break;
-		case 1:
-			err = i2c_write_demod_bytes(state,
-					flip_1_lgdt3303_init_data,
-					sizeof(flip_1_lgdt3303_init_data));
-			break;
-		case 0:
-		default:
-			err = i2c_write_demod_bytes(state, lgdt3303_init_data,
-						    sizeof(lgdt3303_init_data));
-		}
-		break;
-	default:
-		chip_name = "undefined";
-		printk (KERN_WARNING "Only LGDT3302 and LGDT3303 are supported chips.\n");
-		err = -ENODEV;
-	}
-	dprintk("%s entered as %s\n", __func__, chip_name);
-	if (err < 0)
-		return err;
-	return lgdt330x_SwReset(state);
-}
-
-static int lgdt330x_read_ber(struct dvb_frontend* fe, u32* ber)
-{
-	*ber = 0; /* Not supplied by the demod chips */
-	return 0;
-}
-
-static int lgdt330x_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
-{
-	struct lgdt330x_state* state = fe->demodulator_priv;
-	int err;
-	u8 buf[2];
-
-	*ucblocks = 0;
-
-	switch (state->config->demod_chip) {
-	case LGDT3302:
-		err = i2c_read_demod_bytes(state, LGDT3302_PACKET_ERR_COUNTER1,
-					   buf, sizeof(buf));
-		break;
-	case LGDT3303:
-		err = i2c_read_demod_bytes(state, LGDT3303_PACKET_ERR_COUNTER1,
-					   buf, sizeof(buf));
-		break;
-	default:
-		printk(KERN_WARNING
-		       "Only LGDT3302 and LGDT3303 are supported chips.\n");
-		err = -ENODEV;
-	}
-	if (err < 0)
-		return err;
-
-	*ucblocks = (buf[0] << 8) | buf[1];
-	return 0;
-}
-
-static int lgdt330x_set_parameters(struct dvb_frontend *fe)
-{
-	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
-	/*
-	 * Array of byte pairs <address, value>
-	 * to initialize 8VSB for lgdt3303 chip 50 MHz IF
-	 */
-	static u8 lgdt3303_8vsb_44_data[] = {
-		0x04, 0x00,
-		0x0d, 0x40,
-		0x0e, 0x87,
-		0x0f, 0x8e,
-		0x10, 0x01,
-		0x47, 0x8b };
-
-	/*
-	 * Array of byte pairs <address, value>
-	 * to initialize QAM for lgdt3303 chip
-	 */
-	static u8 lgdt3303_qam_data[] = {
-		0x04, 0x00,
-		0x0d, 0x00,
-		0x0e, 0x00,
-		0x0f, 0x00,
-		0x10, 0x00,
-		0x51, 0x63,
-		0x47, 0x66,
-		0x48, 0x66,
-		0x4d, 0x1a,
-		0x49, 0x08,
-		0x4a, 0x9b };
-
-	struct lgdt330x_state* state = fe->demodulator_priv;
-
-	static u8 top_ctrl_cfg[]   = { TOP_CONTROL, 0x03 };
-
-	int err = 0;
-	/* Change only if we are actually changing the modulation */
-	if (state->current_modulation != p->modulation) {
-		switch (p->modulation) {
-		case VSB_8:
-			dprintk("%s: VSB_8 MODE\n", __func__);
-
-			/* Select VSB mode */
-			top_ctrl_cfg[1] = 0x03;
-
-			/* Select ANT connector if supported by card */
-			if (state->config->pll_rf_set)
-				state->config->pll_rf_set(fe, 1);
-
-			if (state->config->demod_chip == LGDT3303) {
-				err = i2c_write_demod_bytes(state, lgdt3303_8vsb_44_data,
-							    sizeof(lgdt3303_8vsb_44_data));
-			}
-			break;
-
-		case QAM_64:
-			dprintk("%s: QAM_64 MODE\n", __func__);
-
-			/* Select QAM_64 mode */
-			top_ctrl_cfg[1] = 0x00;
-
-			/* Select CABLE connector if supported by card */
-			if (state->config->pll_rf_set)
-				state->config->pll_rf_set(fe, 0);
-
-			if (state->config->demod_chip == LGDT3303) {
-				err = i2c_write_demod_bytes(state, lgdt3303_qam_data,
-											sizeof(lgdt3303_qam_data));
-			}
-			break;
-
-		case QAM_256:
-			dprintk("%s: QAM_256 MODE\n", __func__);
-
-			/* Select QAM_256 mode */
-			top_ctrl_cfg[1] = 0x01;
-
-			/* Select CABLE connector if supported by card */
-			if (state->config->pll_rf_set)
-				state->config->pll_rf_set(fe, 0);
-
-			if (state->config->demod_chip == LGDT3303) {
-				err = i2c_write_demod_bytes(state, lgdt3303_qam_data,
-											sizeof(lgdt3303_qam_data));
-			}
-			break;
-		default:
-			printk(KERN_WARNING "lgdt330x: %s: Modulation type(%d) UNSUPPORTED\n", __func__, p->modulation);
-			return -1;
-		}
-		if (err < 0)
-			printk(KERN_WARNING "lgdt330x: %s: error blasting "
-			       "bytes to lgdt3303 for modulation type(%d)\n",
-			       __func__, p->modulation);
-
-		/*
-		 * select serial or parallel MPEG harware interface
-		 * Serial:   0x04 for LGDT3302 or 0x40 for LGDT3303
-		 * Parallel: 0x00
-		 */
-		top_ctrl_cfg[1] |= state->config->serial_mpeg;
-
-		/* Select the requested mode */
-		i2c_write_demod_bytes(state, top_ctrl_cfg,
-				      sizeof(top_ctrl_cfg));
-		if (state->config->set_ts_params)
-			state->config->set_ts_params(fe, 0);
-		state->current_modulation = p->modulation;
-	}
-
-	/* Tune to the specified frequency */
-	if (fe->ops.tuner_ops.set_params) {
-		fe->ops.tuner_ops.set_params(fe);
-		if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
-	}
-
-	/* Keep track of the new frequency */
-	/* FIXME this is the wrong way to do this...           */
-	/* The tuner is shared with the video4linux analog API */
-	state->current_frequency = p->frequency;
-
-	lgdt330x_SwReset(state);
-	return 0;
-}
-
-static int lgdt330x_get_frontend(struct dvb_frontend *fe)
-{
-	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
-	struct lgdt330x_state *state = fe->demodulator_priv;
-	p->frequency = state->current_frequency;
-	return 0;
-}
-
-static int lgdt3302_read_status(struct dvb_frontend* fe, fe_status_t* status)
-{
-	struct lgdt330x_state* state = fe->demodulator_priv;
-	u8 buf[3];
-
-	*status = 0; /* Reset status result */
-
-	/* AGC status register */
-	i2c_read_demod_bytes(state, AGC_STATUS, buf, 1);
-	dprintk("%s: AGC_STATUS = 0x%02x\n", __func__, buf[0]);
-	if ((buf[0] & 0x0c) == 0x8){
-		/* Test signal does not exist flag */
-		/* as well as the AGC lock flag.   */
-		*status |= FE_HAS_SIGNAL;
-	}
-
-	/*
-	 * You must set the Mask bits to 1 in the IRQ_MASK in order
-	 * to see that status bit in the IRQ_STATUS register.
-	 * This is done in SwReset();
-	 */
-	/* signal status */
-	i2c_read_demod_bytes(state, TOP_CONTROL, buf, sizeof(buf));
-	dprintk("%s: TOP_CONTROL = 0x%02x, IRO_MASK = 0x%02x, IRQ_STATUS = 0x%02x\n", __func__, buf[0], buf[1], buf[2]);
-
-
-	/* sync status */
-	if ((buf[2] & 0x03) == 0x01) {
-		*status |= FE_HAS_SYNC;
-	}
-
-	/* FEC error status */
-	if ((buf[2] & 0x0c) == 0x08) {
-		*status |= FE_HAS_LOCK;
-		*status |= FE_HAS_VITERBI;
-	}
-
-	/* Carrier Recovery Lock Status Register */
-	i2c_read_demod_bytes(state, CARRIER_LOCK, buf, 1);
-	dprintk("%s: CARRIER_LOCK = 0x%02x\n", __func__, buf[0]);
-	switch (state->current_modulation) {
-	case QAM_256:
-	case QAM_64:
-		/* Need to understand why there are 3 lock levels here */
-		if ((buf[0] & 0x07) == 0x07)
-			*status |= FE_HAS_CARRIER;
-		break;
-	case VSB_8:
-		if ((buf[0] & 0x80) == 0x80)
-			*status |= FE_HAS_CARRIER;
-		break;
-	default:
-		printk(KERN_WARNING "lgdt330x: %s: Modulation set to unsupported value\n", __func__);
-	}
-
-	return 0;
-}
-
-static int lgdt3303_read_status(struct dvb_frontend* fe, fe_status_t* status)
-{
-	struct lgdt330x_state* state = fe->demodulator_priv;
-	int err;
-	u8 buf[3];
-
-	*status = 0; /* Reset status result */
-
-	/* lgdt3303 AGC status register */
-	err = i2c_read_demod_bytes(state, 0x58, buf, 1);
-	if (err < 0)
-		return err;
-
-	dprintk("%s: AGC_STATUS = 0x%02x\n", __func__, buf[0]);
-	if ((buf[0] & 0x21) == 0x01){
-		/* Test input signal does not exist flag */
-		/* as well as the AGC lock flag.   */
-		*status |= FE_HAS_SIGNAL;
-	}
-
-	/* Carrier Recovery Lock Status Register */
-	i2c_read_demod_bytes(state, CARRIER_LOCK, buf, 1);
-	dprintk("%s: CARRIER_LOCK = 0x%02x\n", __func__, buf[0]);
-	switch (state->current_modulation) {
-	case QAM_256:
-	case QAM_64:
-		/* Need to understand why there are 3 lock levels here */
-		if ((buf[0] & 0x07) == 0x07)
-			*status |= FE_HAS_CARRIER;
-		else
-			break;
-		i2c_read_demod_bytes(state, 0x8a, buf, 1);
-		if ((buf[0] & 0x04) == 0x04)
-			*status |= FE_HAS_SYNC;
-		if ((buf[0] & 0x01) == 0x01)
-			*status |= FE_HAS_LOCK;
-		if ((buf[0] & 0x08) == 0x08)
-			*status |= FE_HAS_VITERBI;
-		break;
-	case VSB_8:
-		if ((buf[0] & 0x80) == 0x80)
-			*status |= FE_HAS_CARRIER;
-		else
-			break;
-		i2c_read_demod_bytes(state, 0x38, buf, 1);
-		if ((buf[0] & 0x02) == 0x00)
-			*status |= FE_HAS_SYNC;
-		if ((buf[0] & 0x01) == 0x01) {
-			*status |= FE_HAS_LOCK;
-			*status |= FE_HAS_VITERBI;
-		}
-		break;
-	default:
-		printk(KERN_WARNING "lgdt330x: %s: Modulation set to unsupported value\n", __func__);
-	}
-	return 0;
-}
-
-/* Calculate SNR estimation (scaled by 2^24)
-
-   8-VSB SNR equations from LGDT3302 and LGDT3303 datasheets, QAM
-   equations from LGDT3303 datasheet.  VSB is the same between the '02
-   and '03, so maybe QAM is too?  Perhaps someone with a newer datasheet
-   that has QAM information could verify?
-
-   For 8-VSB: (two ways, take your pick)
-   LGDT3302:
-     SNR_EQ = 10 * log10(25 * 24^2 / EQ_MSE)
-   LGDT3303:
-     SNR_EQ = 10 * log10(25 * 32^2 / EQ_MSE)
-   LGDT3302 & LGDT3303:
-     SNR_PT = 10 * log10(25 * 32^2 / PT_MSE)  (we use this one)
-   For 64-QAM:
-     SNR    = 10 * log10( 688128   / MSEQAM)
-   For 256-QAM:
-     SNR    = 10 * log10( 696320   / MSEQAM)
-
-   We re-write the snr equation as:
-     SNR * 2^24 = 10*(c - intlog10(MSE))
-   Where for 256-QAM, c = log10(696320) * 2^24, and so on. */
-
-static u32 calculate_snr(u32 mse, u32 c)
-{
-	if (mse == 0) /* No signal */
-		return 0;
-
-	mse = intlog10(mse);
-	if (mse > c) {
-		/* Negative SNR, which is possible, but realisticly the
-		demod will lose lock before the signal gets this bad.  The
-		API only allows for unsigned values, so just return 0 */
-		return 0;
-	}
-	return 10*(c - mse);
-}
-
-static int lgdt3302_read_snr(struct dvb_frontend* fe, u16* snr)
-{
-	struct lgdt330x_state* state = (struct lgdt330x_state*) fe->demodulator_priv;
-	u8 buf[5];	/* read data buffer */
-	u32 noise;	/* noise value */
-	u32 c;		/* per-modulation SNR calculation constant */
-
-	switch(state->current_modulation) {
-	case VSB_8:
-		i2c_read_demod_bytes(state, LGDT3302_EQPH_ERR0, buf, 5);
-#ifdef USE_EQMSE
-		/* Use Equalizer Mean-Square Error Register */
-		/* SNR for ranges from -15.61 to +41.58 */
-		noise = ((buf[0] & 7) << 16) | (buf[1] << 8) | buf[2];
-		c = 69765745; /* log10(25*24^2)*2^24 */
-#else
-		/* Use Phase Tracker Mean-Square Error Register */
-		/* SNR for ranges from -13.11 to +44.08 */
-		noise = ((buf[0] & 7<<3) << 13) | (buf[3] << 8) | buf[4];
-		c = 73957994; /* log10(25*32^2)*2^24 */
-#endif
-		break;
-	case QAM_64:
-	case QAM_256:
-		i2c_read_demod_bytes(state, CARRIER_MSEQAM1, buf, 2);
-		noise = ((buf[0] & 3) << 8) | buf[1];
-		c = state->current_modulation == QAM_64 ? 97939837 : 98026066;
-		/* log10(688128)*2^24 and log10(696320)*2^24 */
-		break;
-	default:
-		printk(KERN_ERR "lgdt330x: %s: Modulation set to unsupported value\n",
-		       __func__);
-		return -EREMOTEIO; /* return -EDRIVER_IS_GIBBERED; */
-	}
-
-	state->snr = calculate_snr(noise, c);
-	*snr = (state->snr) >> 16; /* Convert from 8.24 fixed-point to 8.8 */
-
-	dprintk("%s: noise = 0x%08x, snr = %d.%02d dB\n", __func__, noise,
-		state->snr >> 24, (((state->snr>>8) & 0xffff) * 100) >> 16);
-
-	return 0;
-}
-
-static int lgdt3303_read_snr(struct dvb_frontend* fe, u16* snr)
-{
-	struct lgdt330x_state* state = (struct lgdt330x_state*) fe->demodulator_priv;
-	u8 buf[5];	/* read data buffer */
-	u32 noise;	/* noise value */
-	u32 c;		/* per-modulation SNR calculation constant */
-
-	switch(state->current_modulation) {
-	case VSB_8:
-		i2c_read_demod_bytes(state, LGDT3303_EQPH_ERR0, buf, 5);
-#ifdef USE_EQMSE
-		/* Use Equalizer Mean-Square Error Register */
-		/* SNR for ranges from -16.12 to +44.08 */
-		noise = ((buf[0] & 0x78) << 13) | (buf[1] << 8) | buf[2];
-		c = 73957994; /* log10(25*32^2)*2^24 */
-#else
-		/* Use Phase Tracker Mean-Square Error Register */
-		/* SNR for ranges from -13.11 to +44.08 */
-		noise = ((buf[0] & 7) << 16) | (buf[3] << 8) | buf[4];
-		c = 73957994; /* log10(25*32^2)*2^24 */
-#endif
-		break;
-	case QAM_64:
-	case QAM_256:
-		i2c_read_demod_bytes(state, CARRIER_MSEQAM1, buf, 2);
-		noise = (buf[0] << 8) | buf[1];
-		c = state->current_modulation == QAM_64 ? 97939837 : 98026066;
-		/* log10(688128)*2^24 and log10(696320)*2^24 */
-		break;
-	default:
-		printk(KERN_ERR "lgdt330x: %s: Modulation set to unsupported value\n",
-		       __func__);
-		return -EREMOTEIO; /* return -EDRIVER_IS_GIBBERED; */
-	}
-
-	state->snr = calculate_snr(noise, c);
-	*snr = (state->snr) >> 16; /* Convert from 8.24 fixed-point to 8.8 */
-
-	dprintk("%s: noise = 0x%08x, snr = %d.%02d dB\n", __func__, noise,
-		state->snr >> 24, (((state->snr >> 8) & 0xffff) * 100) >> 16);
-
-	return 0;
-}
-
-static int lgdt330x_read_signal_strength(struct dvb_frontend* fe, u16* strength)
-{
-	/* Calculate Strength from SNR up to 35dB */
-	/* Even though the SNR can go higher than 35dB, there is some comfort */
-	/* factor in having a range of strong signals that can show at 100%   */
-	struct lgdt330x_state* state = (struct lgdt330x_state*) fe->demodulator_priv;
-	u16 snr;
-	int ret;
-
-	ret = fe->ops.read_snr(fe, &snr);
-	if (ret != 0)
-		return ret;
-	/* Rather than use the 8.8 value snr, use state->snr which is 8.24 */
-	/* scale the range 0 - 35*2^24 into 0 - 65535 */
-	if (state->snr >= 8960 * 0x10000)
-		*strength = 0xffff;
-	else
-		*strength = state->snr / 8960;
-
-	return 0;
-}
-
-static int lgdt330x_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fe_tune_settings)
-{
-	/* I have no idea about this - it may not be needed */
-	fe_tune_settings->min_delay_ms = 500;
-	fe_tune_settings->step_size = 0;
-	fe_tune_settings->max_drift = 0;
-	return 0;
-}
-
-static void lgdt330x_release(struct dvb_frontend* fe)
-{
-	struct lgdt330x_state* state = (struct lgdt330x_state*) fe->demodulator_priv;
-	kfree(state);
-}
-
-static struct dvb_frontend_ops lgdt3302_ops;
-static struct dvb_frontend_ops lgdt3303_ops;
-
-struct dvb_frontend* lgdt330x_attach(const struct lgdt330x_config* config,
-				     struct i2c_adapter* i2c)
-{
-	struct lgdt330x_state* state = NULL;
-	u8 buf[1];
-
-	/* Allocate memory for the internal state */
-	state = kzalloc(sizeof(struct lgdt330x_state), GFP_KERNEL);
-	if (state == NULL)
-		goto error;
-
-	/* Setup the state */
-	state->config = config;
-	state->i2c = i2c;
-
-	/* Create dvb_frontend */
-	switch (config->demod_chip) {
-	case LGDT3302:
-		memcpy(&state->frontend.ops, &lgdt3302_ops, sizeof(struct dvb_frontend_ops));
-		break;
-	case LGDT3303:
-		memcpy(&state->frontend.ops, &lgdt3303_ops, sizeof(struct dvb_frontend_ops));
-		break;
-	default:
-		goto error;
-	}
-	state->frontend.demodulator_priv = state;
-
-	/* Verify communication with demod chip */
-	if (i2c_read_demod_bytes(state, 2, buf, 1))
-		goto error;
-
-	state->current_frequency = -1;
-	state->current_modulation = -1;
-
-	return &state->frontend;
-
-error:
-	kfree(state);
-	dprintk("%s: ERROR\n",__func__);
-	return NULL;
-}
-
-static struct dvb_frontend_ops lgdt3302_ops = {
-	.delsys = { SYS_ATSC, SYS_DVBC_ANNEX_B },
-	.info = {
-		.name= "LG Electronics LGDT3302 VSB/QAM Frontend",
-		.frequency_min= 54000000,
-		.frequency_max= 858000000,
-		.frequency_stepsize= 62500,
-		.symbol_rate_min    = 5056941,	/* QAM 64 */
-		.symbol_rate_max    = 10762000,	/* VSB 8  */
-		.caps = FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_8VSB
-	},
-	.init                 = lgdt330x_init,
-	.set_frontend         = lgdt330x_set_parameters,
-	.get_frontend         = lgdt330x_get_frontend,
-	.get_tune_settings    = lgdt330x_get_tune_settings,
-	.read_status          = lgdt3302_read_status,
-	.read_ber             = lgdt330x_read_ber,
-	.read_signal_strength = lgdt330x_read_signal_strength,
-	.read_snr             = lgdt3302_read_snr,
-	.read_ucblocks        = lgdt330x_read_ucblocks,
-	.release              = lgdt330x_release,
-};
-
-static struct dvb_frontend_ops lgdt3303_ops = {
-	.delsys = { SYS_ATSC, SYS_DVBC_ANNEX_B },
-	.info = {
-		.name= "LG Electronics LGDT3303 VSB/QAM Frontend",
-		.frequency_min= 54000000,
-		.frequency_max= 858000000,
-		.frequency_stepsize= 62500,
-		.symbol_rate_min    = 5056941,	/* QAM 64 */
-		.symbol_rate_max    = 10762000,	/* VSB 8  */
-		.caps = FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_8VSB
-	},
-	.init                 = lgdt330x_init,
-	.set_frontend         = lgdt330x_set_parameters,
-	.get_frontend         = lgdt330x_get_frontend,
-	.get_tune_settings    = lgdt330x_get_tune_settings,
-	.read_status          = lgdt3303_read_status,
-	.read_ber             = lgdt330x_read_ber,
-	.read_signal_strength = lgdt330x_read_signal_strength,
-	.read_snr             = lgdt3303_read_snr,
-	.read_ucblocks        = lgdt330x_read_ucblocks,
-	.release              = lgdt330x_release,
-};
-
-MODULE_DESCRIPTION("LGDT330X (ATSC 8VSB & ITU-T J.83 AnnexB 64/256 QAM) Demodulator Driver");
-MODULE_AUTHOR("Wilson Michaels");
-MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL(lgdt330x_attach);
-
-/*
- * Local variables:
- * c-basic-offset: 8
- * End:
- */