[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, 951 deletions

diff --git a/drivers/media/dvb/frontends/si21xx.c b/drivers/media/dvb/frontends/si21xx.c
deleted file mode 100644
index a68a64800df..00000000000
--- a/drivers/media/dvb/frontends/si21xx.c
+++ /dev/null
@@ -1,951 +0,0 @@
-/* DVB compliant Linux driver for the DVB-S si2109/2110 demodulator
-*
-* Copyright (C) 2008 Igor M. Liplianin (liplianin@me.by)
-*
-*	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.
-*
-*/
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/jiffies.h>
-#include <asm/div64.h>
-
-#include "dvb_frontend.h"
-#include "si21xx.h"
-
-#define	REVISION_REG			0x00
-#define	SYSTEM_MODE_REG			0x01
-#define	TS_CTRL_REG_1			0x02
-#define	TS_CTRL_REG_2			0x03
-#define	PIN_CTRL_REG_1			0x04
-#define	PIN_CTRL_REG_2			0x05
-#define	LOCK_STATUS_REG_1		0x0f
-#define	LOCK_STATUS_REG_2		0x10
-#define	ACQ_STATUS_REG			0x11
-#define	ACQ_CTRL_REG_1			0x13
-#define	ACQ_CTRL_REG_2			0x14
-#define	PLL_DIVISOR_REG			0x15
-#define	COARSE_TUNE_REG			0x16
-#define	FINE_TUNE_REG_L			0x17
-#define	FINE_TUNE_REG_H			0x18
-
-#define	ANALOG_AGC_POWER_LEVEL_REG	0x28
-#define	CFO_ESTIMATOR_CTRL_REG_1	0x29
-#define	CFO_ESTIMATOR_CTRL_REG_2	0x2a
-#define	CFO_ESTIMATOR_CTRL_REG_3	0x2b
-
-#define	SYM_RATE_ESTIMATE_REG_L		0x31
-#define	SYM_RATE_ESTIMATE_REG_M		0x32
-#define	SYM_RATE_ESTIMATE_REG_H		0x33
-
-#define	CFO_ESTIMATOR_OFFSET_REG_L	0x36
-#define	CFO_ESTIMATOR_OFFSET_REG_H	0x37
-#define	CFO_ERROR_REG_L			0x38
-#define	CFO_ERROR_REG_H			0x39
-#define	SYM_RATE_ESTIMATOR_CTRL_REG	0x3a
-
-#define	SYM_RATE_REG_L			0x3f
-#define	SYM_RATE_REG_M			0x40
-#define	SYM_RATE_REG_H			0x41
-#define	SYM_RATE_ESTIMATOR_MAXIMUM_REG	0x42
-#define	SYM_RATE_ESTIMATOR_MINIMUM_REG	0x43
-
-#define	C_N_ESTIMATOR_CTRL_REG		0x7c
-#define	C_N_ESTIMATOR_THRSHLD_REG	0x7d
-#define	C_N_ESTIMATOR_LEVEL_REG_L	0x7e
-#define	C_N_ESTIMATOR_LEVEL_REG_H	0x7f
-
-#define	BLIND_SCAN_CTRL_REG		0x80
-
-#define	LSA_CTRL_REG_1			0x8D
-#define	SPCTRM_TILT_CORR_THRSHLD_REG	0x8f
-#define	ONE_DB_BNDWDTH_THRSHLD_REG	0x90
-#define	TWO_DB_BNDWDTH_THRSHLD_REG	0x91
-#define	THREE_DB_BNDWDTH_THRSHLD_REG	0x92
-#define	INBAND_POWER_THRSHLD_REG	0x93
-#define	REF_NOISE_LVL_MRGN_THRSHLD_REG	0x94
-
-#define	VIT_SRCH_CTRL_REG_1		0xa0
-#define	VIT_SRCH_CTRL_REG_2		0xa1
-#define	VIT_SRCH_CTRL_REG_3		0xa2
-#define	VIT_SRCH_STATUS_REG		0xa3
-#define	VITERBI_BER_COUNT_REG_L		0xab
-#define	REED_SOLOMON_CTRL_REG		0xb0
-#define	REED_SOLOMON_ERROR_COUNT_REG_L	0xb1
-#define	PRBS_CTRL_REG			0xb5
-
-#define	LNB_CTRL_REG_1			0xc0
-#define	LNB_CTRL_REG_2			0xc1
-#define	LNB_CTRL_REG_3			0xc2
-#define	LNB_CTRL_REG_4			0xc3
-#define	LNB_CTRL_STATUS_REG		0xc4
-#define	LNB_FIFO_REGS_0			0xc5
-#define	LNB_FIFO_REGS_1			0xc6
-#define	LNB_FIFO_REGS_2			0xc7
-#define	LNB_FIFO_REGS_3			0xc8
-#define	LNB_FIFO_REGS_4			0xc9
-#define	LNB_FIFO_REGS_5			0xca
-#define	LNB_SUPPLY_CTRL_REG_1		0xcb
-#define	LNB_SUPPLY_CTRL_REG_2		0xcc
-#define	LNB_SUPPLY_CTRL_REG_3		0xcd
-#define	LNB_SUPPLY_CTRL_REG_4		0xce
-#define	LNB_SUPPLY_STATUS_REG		0xcf
-
-#define FAIL	-1
-#define PASS	0
-
-#define ALLOWABLE_FS_COUNT	10
-#define STATUS_BER		0
-#define STATUS_UCBLOCKS		1
-
-static int debug;
-#define dprintk(args...) \
-	do { \
-		if (debug) \
-			printk(KERN_DEBUG "si21xx: " args); \
-	} while (0)
-
-enum {
-	ACTIVE_HIGH,
-	ACTIVE_LOW
-};
-enum {
-	BYTE_WIDE,
-	BIT_WIDE
-};
-enum {
-	CLK_GAPPED_MODE,
-	CLK_CONTINUOUS_MODE
-};
-enum {
-	RISING_EDGE,
-	FALLING_EDGE
-};
-enum {
-	MSB_FIRST,
-	LSB_FIRST
-};
-enum {
-	SERIAL,
-	PARALLEL
-};
-
-struct si21xx_state {
-	struct i2c_adapter *i2c;
-	const struct si21xx_config *config;
-	struct dvb_frontend frontend;
-	u8 initialised:1;
-	int errmode;
-	int fs;			/*Sampling rate of the ADC in MHz*/
-};
-
-/*	register default initialization */
-static u8 serit_sp1511lhb_inittab[] = {
-	0x01, 0x28,	/* set i2c_inc_disable */
-	0x20, 0x03,
-	0x27, 0x20,
-	0xe0, 0x45,
-	0xe1, 0x08,
-	0xfe, 0x01,
-	0x01, 0x28,
-	0x89, 0x09,
-	0x04, 0x80,
-	0x05, 0x01,
-	0x06, 0x00,
-	0x20, 0x03,
-	0x24, 0x88,
-	0x29, 0x09,
-	0x2a, 0x0f,
-	0x2c, 0x10,
-	0x2d, 0x19,
-	0x2e, 0x08,
-	0x2f, 0x10,
-	0x30, 0x19,
-	0x34, 0x20,
-	0x35, 0x03,
-	0x45, 0x02,
-	0x46, 0x45,
-	0x47, 0xd0,
-	0x48, 0x00,
-	0x49, 0x40,
-	0x4a, 0x03,
-	0x4c, 0xfd,
-	0x4f, 0x2e,
-	0x50, 0x2e,
-	0x51, 0x10,
-	0x52, 0x10,
-	0x56, 0x92,
-	0x59, 0x00,
-	0x5a, 0x2d,
-	0x5b, 0x33,
-	0x5c, 0x1f,
-	0x5f, 0x76,
-	0x62, 0xc0,
-	0x63, 0xc0,
-	0x64, 0xf3,
-	0x65, 0xf3,
-	0x79, 0x40,
-	0x6a, 0x40,
-	0x6b, 0x0a,
-	0x6c, 0x80,
-	0x6d, 0x27,
-	0x71, 0x06,
-	0x75, 0x60,
-	0x78, 0x00,
-	0x79, 0xb5,
-	0x7c, 0x05,
-	0x7d, 0x1a,
-	0x87, 0x55,
-	0x88, 0x72,
-	0x8f, 0x08,
-	0x90, 0xe0,
-	0x94, 0x40,
-	0xa0, 0x3f,
-	0xa1, 0xc0,
-	0xa4, 0xcc,
-	0xa5, 0x66,
-	0xa6, 0x66,
-	0xa7, 0x7b,
-	0xa8, 0x7b,
-	0xa9, 0x7b,
-	0xaa, 0x9a,
-	0xed, 0x04,
-	0xad, 0x00,
-	0xae, 0x03,
-	0xcc, 0xab,
-	0x01, 0x08,
-	0xff, 0xff
-};
-
-/*	low level read/writes */
-static int si21_writeregs(struct si21xx_state *state, u8 reg1,
-							u8 *data, int len)
-{
-	int ret;
-	u8 buf[60];/* = { reg1, data };*/
-	struct i2c_msg msg = {
-				.addr = state->config->demod_address,
-				.flags = 0,
-				.buf = buf,
-				.len = len + 1
-	};
-
-	msg.buf[0] =  reg1;
-	memcpy(msg.buf + 1, data, len);
-
-	ret = i2c_transfer(state->i2c, &msg, 1);
-
-	if (ret != 1)
-		dprintk("%s: writereg error (reg1 == 0x%02x, data == 0x%02x, "
-			"ret == %i)\n", __func__, reg1, data[0], ret);
-
-	return (ret != 1) ? -EREMOTEIO : 0;
-}
-
-static int si21_writereg(struct si21xx_state *state, u8 reg, u8 data)
-{
-	int ret;
-	u8 buf[] = { reg, data };
-	struct i2c_msg msg = {
-				.addr = state->config->demod_address,
-				.flags = 0,
-				.buf = buf,
-				.len = 2
-	};
-
-	ret = i2c_transfer(state->i2c, &msg, 1);
-
-	if (ret != 1)
-		dprintk("%s: writereg error (reg == 0x%02x, data == 0x%02x, "
-			"ret == %i)\n", __func__, reg, data, ret);
-
-	return (ret != 1) ? -EREMOTEIO : 0;
-}
-
-static int si21_write(struct dvb_frontend *fe, const u8 buf[], int len)
-{
-	struct si21xx_state *state = fe->demodulator_priv;
-
-	if (len != 2)
-		return -EINVAL;
-
-	return si21_writereg(state, buf[0], buf[1]);
-}
-
-static u8 si21_readreg(struct si21xx_state *state, u8 reg)
-{
-	int ret;
-	u8 b0[] = { reg };
-	u8 b1[] = { 0 };
-	struct i2c_msg msg[] = {
-		{
-			.addr = state->config->demod_address,
-			.flags = 0,
-			.buf = b0,
-			.len = 1
-		}, {
-			.addr = state->config->demod_address,
-			.flags = I2C_M_RD,
-			.buf = b1,
-			.len = 1
-		}
-	};
-
-	ret = i2c_transfer(state->i2c, msg, 2);
-
-	if (ret != 2)
-		dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n",
-			__func__, reg, ret);
-
-	return b1[0];
-}
-
-static int si21_readregs(struct si21xx_state *state, u8 reg1, u8 *b, u8 len)
-{
-	int ret;
-	struct i2c_msg msg[] = {
-		{
-			.addr = state->config->demod_address,
-			.flags = 0,
-			.buf = &reg1,
-			.len = 1
-		}, {
-			.addr = state->config->demod_address,
-			.flags = I2C_M_RD,
-			.buf = b,
-			.len = len
-		}
-	};
-
-	ret = i2c_transfer(state->i2c, msg, 2);
-
-	if (ret != 2)
-		dprintk("%s: readreg error (ret == %i)\n", __func__, ret);
-
-	return ret == 2 ? 0 : -1;
-}
-
-static int si21xx_wait_diseqc_idle(struct si21xx_state *state, int timeout)
-{
-	unsigned long start = jiffies;
-
-	dprintk("%s\n", __func__);
-
-	while ((si21_readreg(state, LNB_CTRL_REG_1) & 0x8) == 8) {
-		if (jiffies - start > timeout) {
-			dprintk("%s: timeout!!\n", __func__);
-			return -ETIMEDOUT;
-		}
-		msleep(10);
-	};
-
-	return 0;
-}
-
-static int si21xx_set_symbolrate(struct dvb_frontend *fe, u32 srate)
-{
-	struct si21xx_state *state = fe->demodulator_priv;
-	u32 sym_rate, data_rate;
-	int i;
-	u8 sym_rate_bytes[3];
-
-	dprintk("%s : srate = %i\n", __func__ , srate);
-
-	if ((srate < 1000000) || (srate > 45000000))
-		return -EINVAL;
-
-	data_rate = srate;
-	sym_rate = 0;
-
-	for (i = 0; i < 4; ++i) {
-		sym_rate /= 100;
-		sym_rate = sym_rate + ((data_rate % 100) * 0x800000) /
-								state->fs;
-		data_rate /= 100;
-	}
-	for (i = 0; i < 3; ++i)
-		sym_rate_bytes[i] = (u8)((sym_rate >> (i * 8)) & 0xff);
-
-	si21_writeregs(state, SYM_RATE_REG_L, sym_rate_bytes, 0x03);
-
-	return 0;
-}
-
-static int si21xx_send_diseqc_msg(struct dvb_frontend *fe,
-					struct dvb_diseqc_master_cmd *m)
-{
-	struct si21xx_state *state = fe->demodulator_priv;
-	u8 lnb_status;
-	u8 LNB_CTRL_1;
-	int status;
-
-	dprintk("%s\n", __func__);
-
-	status = PASS;
-	LNB_CTRL_1 = 0;
-
-	status |= si21_readregs(state, LNB_CTRL_STATUS_REG, &lnb_status, 0x01);
-	status |= si21_readregs(state, LNB_CTRL_REG_1, &lnb_status, 0x01);
-
-	/*fill the FIFO*/
-	status |= si21_writeregs(state, LNB_FIFO_REGS_0, m->msg, m->msg_len);
-
-	LNB_CTRL_1 = (lnb_status & 0x70);
-	LNB_CTRL_1 |= m->msg_len;
-
-	LNB_CTRL_1 |= 0x80;	/* begin LNB signaling */
-
-	status |= si21_writeregs(state, LNB_CTRL_REG_1, &LNB_CTRL_1, 0x01);
-
-	return status;
-}
-
-static int si21xx_send_diseqc_burst(struct dvb_frontend *fe,
-						fe_sec_mini_cmd_t burst)
-{
-	struct si21xx_state *state = fe->demodulator_priv;
-	u8 val;
-
-	dprintk("%s\n", __func__);
-
-	if (si21xx_wait_diseqc_idle(state, 100) < 0)
-		return -ETIMEDOUT;
-
-	val = (0x80 | si21_readreg(state, 0xc1));
-	if (si21_writereg(state, LNB_CTRL_REG_1,
-			burst == SEC_MINI_A ? (val & ~0x10) : (val | 0x10)))
-		return -EREMOTEIO;
-
-	if (si21xx_wait_diseqc_idle(state, 100) < 0)
-		return -ETIMEDOUT;
-
-	if (si21_writereg(state, LNB_CTRL_REG_1, val))
-		return -EREMOTEIO;
-
-	return 0;
-}
-/*	30.06.2008 */
-static int si21xx_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
-{
-	struct si21xx_state *state = fe->demodulator_priv;
-	u8 val;
-
-	dprintk("%s\n", __func__);
-	val = (0x80 | si21_readreg(state, LNB_CTRL_REG_1));
-
-	switch (tone) {
-	case SEC_TONE_ON:
-		return si21_writereg(state, LNB_CTRL_REG_1, val | 0x20);
-
-	case SEC_TONE_OFF:
-		return si21_writereg(state, LNB_CTRL_REG_1, (val & ~0x20));
-
-	default:
-		return -EINVAL;
-	}
-}
-
-static int si21xx_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t volt)
-{
-	struct si21xx_state *state = fe->demodulator_priv;
-
-	u8 val;
-	dprintk("%s: %s\n", __func__,
-		volt == SEC_VOLTAGE_13 ? "SEC_VOLTAGE_13" :
-		volt == SEC_VOLTAGE_18 ? "SEC_VOLTAGE_18" : "??");
-
-
-	val = (0x80 | si21_readreg(state, LNB_CTRL_REG_1));
-
-	switch (volt) {
-	case SEC_VOLTAGE_18:
-		return si21_writereg(state, LNB_CTRL_REG_1, val | 0x40);
-		break;
-	case SEC_VOLTAGE_13:
-		return si21_writereg(state, LNB_CTRL_REG_1, (val & ~0x40));
-		break;
-	default:
-		return -EINVAL;
-	};
-}
-
-static int si21xx_init(struct dvb_frontend *fe)
-{
-	struct si21xx_state *state = fe->demodulator_priv;
-	int i;
-	int status = 0;
-	u8 reg1;
-	u8 val;
-	u8 reg2[2];
-
-	dprintk("%s\n", __func__);
-
-	for (i = 0; ; i += 2) {
-		reg1 = serit_sp1511lhb_inittab[i];
-		val = serit_sp1511lhb_inittab[i+1];
-		if (reg1 == 0xff && val == 0xff)
-			break;
-		si21_writeregs(state, reg1, &val, 1);
-	}
-
-	/*DVB QPSK SYSTEM MODE REG*/
-	reg1 = 0x08;
-	si21_writeregs(state, SYSTEM_MODE_REG, &reg1, 0x01);
-
-	/*transport stream config*/
-	/*
-	mode = PARALLEL;
-	sdata_form = LSB_FIRST;
-	clk_edge = FALLING_EDGE;
-	clk_mode = CLK_GAPPED_MODE;
-	strt_len = BYTE_WIDE;
-	sync_pol = ACTIVE_HIGH;
-	val_pol = ACTIVE_HIGH;
-	err_pol = ACTIVE_HIGH;
-	sclk_rate = 0x00;
-	parity = 0x00 ;
-	data_delay = 0x00;
-	clk_delay = 0x00;
-	pclk_smooth = 0x00;
-	*/
-	reg2[0] =
-		PARALLEL + (LSB_FIRST << 1)
-		+ (FALLING_EDGE << 2) + (CLK_GAPPED_MODE << 3)
-		+ (BYTE_WIDE << 4) + (ACTIVE_HIGH << 5)
-		+ (ACTIVE_HIGH << 6) + (ACTIVE_HIGH << 7);
-
-	reg2[1] = 0;
-	/*	sclk_rate + (parity << 2)
-		+ (data_delay << 3) + (clk_delay << 4)
-		+ (pclk_smooth << 5);
-	*/
-	status |= si21_writeregs(state, TS_CTRL_REG_1, reg2, 0x02);
-	if (status != 0)
-		dprintk(" %s : TS Set Error\n", __func__);
-
-	return 0;
-
-}
-
-static int si21_read_status(struct dvb_frontend *fe, fe_status_t *status)
-{
-	struct si21xx_state *state = fe->demodulator_priv;
-	u8 regs_read[2];
-	u8 reg_read;
-	u8 i;
-	u8 lock;
-	u8 signal = si21_readreg(state, ANALOG_AGC_POWER_LEVEL_REG);
-
-	si21_readregs(state, LOCK_STATUS_REG_1, regs_read, 0x02);
-	reg_read = 0;
-
-	for (i = 0; i < 7; ++i)
-		reg_read |= ((regs_read[0] >> i) & 0x01) << (6 - i);
-
-	lock = ((reg_read & 0x7f) | (regs_read[1] & 0x80));
-
-	dprintk("%s : FE_READ_STATUS : VSTATUS: 0x%02x\n", __func__, lock);
-	*status = 0;
-
-	if (signal > 10)
-		*status |= FE_HAS_SIGNAL;
-
-	if (lock & 0x2)
-		*status |= FE_HAS_CARRIER;
-
-	if (lock & 0x20)
-		*status |= FE_HAS_VITERBI;
-
-	if (lock & 0x40)
-		*status |= FE_HAS_SYNC;
-
-	if ((lock & 0x7b) == 0x7b)
-		*status |= FE_HAS_LOCK;
-
-	return 0;
-}
-
-static int si21_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
-{
-	struct si21xx_state *state = fe->demodulator_priv;
-
-	/*status = si21_readreg(state, ANALOG_AGC_POWER_LEVEL_REG,
-						(u8*)agclevel, 0x01);*/
-
-	u16 signal = (3 * si21_readreg(state, 0x27) *
-					si21_readreg(state, 0x28));
-
-	dprintk("%s : AGCPWR: 0x%02x%02x, signal=0x%04x\n", __func__,
-		si21_readreg(state, 0x27),
-		si21_readreg(state, 0x28), (int) signal);
-
-	signal  <<= 4;
-	*strength = signal;
-
-	return 0;
-}
-
-static int si21_read_ber(struct dvb_frontend *fe, u32 *ber)
-{
-	struct si21xx_state *state = fe->demodulator_priv;
-
-	dprintk("%s\n", __func__);
-
-	if (state->errmode != STATUS_BER)
-		return 0;
-
-	*ber = (si21_readreg(state, 0x1d) << 8) |
-				si21_readreg(state, 0x1e);
-
-	return 0;
-}
-
-static int si21_read_snr(struct dvb_frontend *fe, u16 *snr)
-{
-	struct si21xx_state *state = fe->demodulator_priv;
-
-	s32 xsnr = 0xffff - ((si21_readreg(state, 0x24) << 8) |
-					si21_readreg(state, 0x25));
-	xsnr = 3 * (xsnr - 0xa100);
-	*snr = (xsnr > 0xffff) ? 0xffff : (xsnr < 0) ? 0 : xsnr;
-
-	dprintk("%s\n", __func__);
-
-	return 0;
-}
-
-static int si21_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
-{
-	struct si21xx_state *state = fe->demodulator_priv;
-
-	dprintk("%s\n", __func__);
-
-	if (state->errmode != STATUS_UCBLOCKS)
-		*ucblocks = 0;
-	else
-		*ucblocks = (si21_readreg(state, 0x1d) << 8) |
-					si21_readreg(state, 0x1e);
-
-	return 0;
-}
-
-/*	initiates a channel acquisition sequence
-	using the specified symbol rate and code rate */
-static int si21xx_setacquire(struct dvb_frontend *fe, int symbrate,
-						fe_code_rate_t crate)
-{
-
-	struct si21xx_state *state = fe->demodulator_priv;
-	u8 coderates[] = {
-				0x0, 0x01, 0x02, 0x04, 0x00,
-				0x8, 0x10, 0x20, 0x00, 0x3f
-	};
-
-	u8 coderate_ptr;
-	int status;
-	u8 start_acq = 0x80;
-	u8 reg, regs[3];
-
-	dprintk("%s\n", __func__);
-
-	status = PASS;
-	coderate_ptr = coderates[crate];
-
-	si21xx_set_symbolrate(fe, symbrate);
-
-	/* write code rates to use in the Viterbi search */
-	status |= si21_writeregs(state,
-				VIT_SRCH_CTRL_REG_1,
-				&coderate_ptr, 0x01);
-
-	/* clear acq_start bit */
-	status |= si21_readregs(state, ACQ_CTRL_REG_2, &reg, 0x01);
-	reg &= ~start_acq;
-	status |= si21_writeregs(state, ACQ_CTRL_REG_2, &reg, 0x01);
-
-	/* use new Carrier Frequency Offset Estimator (QuickLock) */
-	regs[0] = 0xCB;
-	regs[1] = 0x40;
-	regs[2] = 0xCB;
-
-	status |= si21_writeregs(state,
-				TWO_DB_BNDWDTH_THRSHLD_REG,
-				&regs[0], 0x03);
-	reg = 0x56;
-	status |= si21_writeregs(state,
-				LSA_CTRL_REG_1, &reg, 1);
-	reg = 0x05;
-	status |= si21_writeregs(state,
-				BLIND_SCAN_CTRL_REG, &reg, 1);
-	/* start automatic acq */
-	status |= si21_writeregs(state,
-				ACQ_CTRL_REG_2, &start_acq, 0x01);
-
-	return status;
-}
-
-static int si21xx_set_frontend(struct dvb_frontend *fe)
-{
-	struct si21xx_state *state = fe->demodulator_priv;
-	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
-
-	/* freq		Channel carrier frequency in KHz (i.e. 1550000 KHz)
-	 datarate	Channel symbol rate in Sps (i.e. 22500000 Sps)*/
-
-	/* in MHz */
-	unsigned char coarse_tune_freq;
-	int fine_tune_freq;
-	unsigned char sample_rate = 0;
-	/* boolean */
-	bool inband_interferer_ind;
-
-	/* INTERMEDIATE VALUES */
-	int icoarse_tune_freq; /* MHz */
-	int ifine_tune_freq; /* MHz */
-	unsigned int band_high;
-	unsigned int band_low;
-	unsigned int x1;
-	unsigned int x2;
-	int i;
-	bool inband_interferer_div2[ALLOWABLE_FS_COUNT];
-	bool inband_interferer_div4[ALLOWABLE_FS_COUNT];
-	int status;
-
-	/* allowable sample rates for ADC in MHz */
-	int afs[ALLOWABLE_FS_COUNT] = { 200, 192, 193, 194, 195,
-					196, 204, 205, 206, 207
-	};
-	/* in MHz */
-	int if_limit_high;
-	int if_limit_low;
-	int lnb_lo;
-	int lnb_uncertanity;
-
-	int rf_freq;
-	int data_rate;
-	unsigned char regs[4];
-
-	dprintk("%s : FE_SET_FRONTEND\n", __func__);
-
-	if (c->delivery_system != SYS_DVBS) {
-			dprintk("%s: unsupported delivery system selected (%d)\n",
-				__func__, c->delivery_system);
-			return -EOPNOTSUPP;
-	}
-
-	for (i = 0; i < ALLOWABLE_FS_COUNT; ++i)
-		inband_interferer_div2[i] = inband_interferer_div4[i] = false;
-
-	if_limit_high = -700000;
-	if_limit_low = -100000;
-	/* in MHz */
-	lnb_lo = 0;
-	lnb_uncertanity = 0;
-
-	rf_freq = 10 * c->frequency ;
-	data_rate = c->symbol_rate / 100;
-
-	status = PASS;
-
-	band_low = (rf_freq - lnb_lo) - ((lnb_uncertanity * 200)
-					+ (data_rate * 135)) / 200;
-
-	band_high = (rf_freq - lnb_lo) + ((lnb_uncertanity * 200)
-					+ (data_rate * 135)) / 200;
-
-
-	icoarse_tune_freq = 100000 *
-				(((rf_freq - lnb_lo) -
-					(if_limit_low + if_limit_high) / 2)
-								/ 100000);
-
-	ifine_tune_freq = (rf_freq - lnb_lo) - icoarse_tune_freq ;
-
-	for (i = 0; i < ALLOWABLE_FS_COUNT; ++i) {
-		x1 = ((rf_freq - lnb_lo) / (afs[i] * 2500)) *
-					(afs[i] * 2500) + afs[i] * 2500;
-
-		x2 = ((rf_freq - lnb_lo) / (afs[i] * 2500)) *
-							(afs[i] * 2500);
-
-		if (((band_low < x1) && (x1 < band_high)) ||
-					((band_low < x2) && (x2 < band_high)))
-					inband_interferer_div4[i] = true;
-
-	}
-
-	for (i = 0; i < ALLOWABLE_FS_COUNT; ++i) {
-		x1 = ((rf_freq - lnb_lo) / (afs[i] * 5000)) *
-					(afs[i] * 5000) + afs[i] * 5000;
-
-		x2 = ((rf_freq - lnb_lo) / (afs[i] * 5000)) *
-					(afs[i] * 5000);
-
-		if (((band_low < x1) && (x1 < band_high)) ||
-					((band_low < x2) && (x2 < band_high)))
-					inband_interferer_div2[i] = true;
-	}
-
-	inband_interferer_ind = true;
-	for (i = 0; i < ALLOWABLE_FS_COUNT; ++i) {
-		if (inband_interferer_div2[i] || inband_interferer_div4[i]) {
-			inband_interferer_ind = false;
-			break;
-		}
-	}
-
-	if (inband_interferer_ind) {
-		for (i = 0; i < ALLOWABLE_FS_COUNT; ++i) {
-			if (!inband_interferer_div2[i]) {
-				sample_rate = (u8) afs[i];
-				break;
-			}
-		}
-	} else {
-		for (i = 0; i < ALLOWABLE_FS_COUNT; ++i) {
-			if ((inband_interferer_div2[i] ||
-			     !inband_interferer_div4[i])) {
-				sample_rate = (u8) afs[i];
-				break;
-			}
-		}
-
-	}
-
-	if (sample_rate > 207 || sample_rate < 192)
-		sample_rate = 200;
-
-	fine_tune_freq = ((0x4000 * (ifine_tune_freq / 10)) /
-					((sample_rate) * 1000));
-
-	coarse_tune_freq = (u8)(icoarse_tune_freq / 100000);
-
-	regs[0] = sample_rate;
-	regs[1] = coarse_tune_freq;
-	regs[2] = fine_tune_freq & 0xFF;
-	regs[3] = fine_tune_freq >> 8 & 0xFF;
-
-	status |= si21_writeregs(state, PLL_DIVISOR_REG, &regs[0], 0x04);
-
-	state->fs = sample_rate;/*ADC MHz*/
-	si21xx_setacquire(fe, c->symbol_rate, c->fec_inner);
-
-	return 0;
-}
-
-static int si21xx_sleep(struct dvb_frontend *fe)
-{
-	struct si21xx_state *state = fe->demodulator_priv;
-	u8 regdata;
-
-	dprintk("%s\n", __func__);
-
-	si21_readregs(state, SYSTEM_MODE_REG, &regdata, 0x01);
-	regdata |= 1 << 6;
-	si21_writeregs(state, SYSTEM_MODE_REG, &regdata, 0x01);
-	state->initialised = 0;
-
-	return 0;
-}
-
-static void si21xx_release(struct dvb_frontend *fe)
-{
-	struct si21xx_state *state = fe->demodulator_priv;
-
-	dprintk("%s\n", __func__);
-
-	kfree(state);
-}
-
-static struct dvb_frontend_ops si21xx_ops = {
-	.delsys = { SYS_DVBS },
-	.info = {
-		.name			= "SL SI21XX DVB-S",
-		.frequency_min		= 950000,
-		.frequency_max		= 2150000,
-		.frequency_stepsize	= 125,	 /* kHz for QPSK frontends */
-		.frequency_tolerance	= 0,
-		.symbol_rate_min	= 1000000,
-		.symbol_rate_max	= 45000000,
-		.symbol_rate_tolerance	= 500,	/* ppm */
-		.caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
-		FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 |
-		FE_CAN_QPSK |
-		FE_CAN_FEC_AUTO
-	},
-
-	.release = si21xx_release,
-	.init = si21xx_init,
-	.sleep = si21xx_sleep,
-	.write = si21_write,
-	.read_status = si21_read_status,
-	.read_ber = si21_read_ber,
-	.read_signal_strength = si21_read_signal_strength,
-	.read_snr = si21_read_snr,
-	.read_ucblocks = si21_read_ucblocks,
-	.diseqc_send_master_cmd = si21xx_send_diseqc_msg,
-	.diseqc_send_burst = si21xx_send_diseqc_burst,
-	.set_tone = si21xx_set_tone,
-	.set_voltage = si21xx_set_voltage,
-
-	.set_frontend = si21xx_set_frontend,
-};
-
-struct dvb_frontend *si21xx_attach(const struct si21xx_config *config,
-						struct i2c_adapter *i2c)
-{
-	struct si21xx_state *state = NULL;
-	int id;
-
-	dprintk("%s\n", __func__);
-
-	/* allocate memory for the internal state */
-	state = kzalloc(sizeof(struct si21xx_state), GFP_KERNEL);
-	if (state == NULL)
-		goto error;
-
-	/* setup the state */
-	state->config = config;
-	state->i2c = i2c;
-	state->initialised = 0;
-	state->errmode = STATUS_BER;
-
-	/* check if the demod is there */
-	id = si21_readreg(state, SYSTEM_MODE_REG);
-	si21_writereg(state, SYSTEM_MODE_REG, id | 0x40); /* standby off */
-	msleep(200);
-	id = si21_readreg(state, 0x00);
-
-	/* register 0x00 contains:
-		0x34 for SI2107
-		0x24 for SI2108
-		0x14 for SI2109
-		0x04 for SI2110
-	*/
-	if (id != 0x04 && id != 0x14)
-		goto error;
-
-	/* create dvb_frontend */
-	memcpy(&state->frontend.ops, &si21xx_ops,
-					sizeof(struct dvb_frontend_ops));
-	state->frontend.demodulator_priv = state;
-	return &state->frontend;
-
-error:
-	kfree(state);
-	return NULL;
-}
-EXPORT_SYMBOL(si21xx_attach);
-
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
-
-MODULE_DESCRIPTION("SL SI21XX DVB Demodulator driver");
-MODULE_AUTHOR("Igor M. Liplianin");
-MODULE_LICENSE("GPL");