[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, 1312 deletions

diff --git a/drivers/media/dvb/frontends/ds3000.c b/drivers/media/dvb/frontends/ds3000.c
deleted file mode 100644
index 4c8ac2657c4..00000000000
--- a/drivers/media/dvb/frontends/ds3000.c
+++ /dev/null
@@ -1,1312 +0,0 @@
-/*
-    Montage Technology DS3000/TS2020 - DVBS/S2 Demodulator/Tuner driver
-    Copyright (C) 2009 Konstantin Dimitrov <kosio.dimitrov@gmail.com>
-
-    Copyright (C) 2009 TurboSight.com
-
-    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/moduleparam.h>
-#include <linux/init.h>
-#include <linux/firmware.h>
-
-#include "dvb_frontend.h"
-#include "ds3000.h"
-
-static int debug;
-
-#define dprintk(args...) \
-	do { \
-		if (debug) \
-			printk(args); \
-	} while (0)
-
-/* as of March 2009 current DS3000 firmware version is 1.78 */
-/* DS3000 FW v1.78 MD5: a32d17910c4f370073f9346e71d34b80 */
-#define DS3000_DEFAULT_FIRMWARE "dvb-fe-ds3000.fw"
-
-#define DS3000_SAMPLE_RATE 96000 /* in kHz */
-#define DS3000_XTAL_FREQ   27000 /* in kHz */
-
-/* Register values to initialise the demod in DVB-S mode */
-static u8 ds3000_dvbs_init_tab[] = {
-	0x23, 0x05,
-	0x08, 0x03,
-	0x0c, 0x00,
-	0x21, 0x54,
-	0x25, 0x82,
-	0x27, 0x31,
-	0x30, 0x08,
-	0x31, 0x40,
-	0x32, 0x32,
-	0x33, 0x35,
-	0x35, 0xff,
-	0x3a, 0x00,
-	0x37, 0x10,
-	0x38, 0x10,
-	0x39, 0x02,
-	0x42, 0x60,
-	0x4a, 0x40,
-	0x4b, 0x04,
-	0x4d, 0x91,
-	0x5d, 0xc8,
-	0x50, 0x77,
-	0x51, 0x77,
-	0x52, 0x36,
-	0x53, 0x36,
-	0x56, 0x01,
-	0x63, 0x43,
-	0x64, 0x30,
-	0x65, 0x40,
-	0x68, 0x26,
-	0x69, 0x4c,
-	0x70, 0x20,
-	0x71, 0x70,
-	0x72, 0x04,
-	0x73, 0x00,
-	0x70, 0x40,
-	0x71, 0x70,
-	0x72, 0x04,
-	0x73, 0x00,
-	0x70, 0x60,
-	0x71, 0x70,
-	0x72, 0x04,
-	0x73, 0x00,
-	0x70, 0x80,
-	0x71, 0x70,
-	0x72, 0x04,
-	0x73, 0x00,
-	0x70, 0xa0,
-	0x71, 0x70,
-	0x72, 0x04,
-	0x73, 0x00,
-	0x70, 0x1f,
-	0x76, 0x00,
-	0x77, 0xd1,
-	0x78, 0x0c,
-	0x79, 0x80,
-	0x7f, 0x04,
-	0x7c, 0x00,
-	0x80, 0x86,
-	0x81, 0xa6,
-	0x85, 0x04,
-	0xcd, 0xf4,
-	0x90, 0x33,
-	0xa0, 0x44,
-	0xc0, 0x18,
-	0xc3, 0x10,
-	0xc4, 0x08,
-	0xc5, 0x80,
-	0xc6, 0x80,
-	0xc7, 0x0a,
-	0xc8, 0x1a,
-	0xc9, 0x80,
-	0xfe, 0x92,
-	0xe0, 0xf8,
-	0xe6, 0x8b,
-	0xd0, 0x40,
-	0xf8, 0x20,
-	0xfa, 0x0f,
-	0xfd, 0x20,
-	0xad, 0x20,
-	0xae, 0x07,
-	0xb8, 0x00,
-};
-
-/* Register values to initialise the demod in DVB-S2 mode */
-static u8 ds3000_dvbs2_init_tab[] = {
-	0x23, 0x0f,
-	0x08, 0x07,
-	0x0c, 0x00,
-	0x21, 0x54,
-	0x25, 0x82,
-	0x27, 0x31,
-	0x30, 0x08,
-	0x31, 0x32,
-	0x32, 0x32,
-	0x33, 0x35,
-	0x35, 0xff,
-	0x3a, 0x00,
-	0x37, 0x10,
-	0x38, 0x10,
-	0x39, 0x02,
-	0x42, 0x60,
-	0x4a, 0x80,
-	0x4b, 0x04,
-	0x4d, 0x81,
-	0x5d, 0x88,
-	0x50, 0x36,
-	0x51, 0x36,
-	0x52, 0x36,
-	0x53, 0x36,
-	0x63, 0x60,
-	0x64, 0x10,
-	0x65, 0x10,
-	0x68, 0x04,
-	0x69, 0x29,
-	0x70, 0x20,
-	0x71, 0x70,
-	0x72, 0x04,
-	0x73, 0x00,
-	0x70, 0x40,
-	0x71, 0x70,
-	0x72, 0x04,
-	0x73, 0x00,
-	0x70, 0x60,
-	0x71, 0x70,
-	0x72, 0x04,
-	0x73, 0x00,
-	0x70, 0x80,
-	0x71, 0x70,
-	0x72, 0x04,
-	0x73, 0x00,
-	0x70, 0xa0,
-	0x71, 0x70,
-	0x72, 0x04,
-	0x73, 0x00,
-	0x70, 0x1f,
-	0xa0, 0x44,
-	0xc0, 0x08,
-	0xc1, 0x10,
-	0xc2, 0x08,
-	0xc3, 0x10,
-	0xc4, 0x08,
-	0xc5, 0xf0,
-	0xc6, 0xf0,
-	0xc7, 0x0a,
-	0xc8, 0x1a,
-	0xc9, 0x80,
-	0xca, 0x23,
-	0xcb, 0x24,
-	0xce, 0x74,
-	0x90, 0x03,
-	0x76, 0x80,
-	0x77, 0x42,
-	0x78, 0x0a,
-	0x79, 0x80,
-	0xad, 0x40,
-	0xae, 0x07,
-	0x7f, 0xd4,
-	0x7c, 0x00,
-	0x80, 0xa8,
-	0x81, 0xda,
-	0x7c, 0x01,
-	0x80, 0xda,
-	0x81, 0xec,
-	0x7c, 0x02,
-	0x80, 0xca,
-	0x81, 0xeb,
-	0x7c, 0x03,
-	0x80, 0xba,
-	0x81, 0xdb,
-	0x85, 0x08,
-	0x86, 0x00,
-	0x87, 0x02,
-	0x89, 0x80,
-	0x8b, 0x44,
-	0x8c, 0xaa,
-	0x8a, 0x10,
-	0xba, 0x00,
-	0xf5, 0x04,
-	0xfe, 0x44,
-	0xd2, 0x32,
-	0xb8, 0x00,
-};
-
-struct ds3000_state {
-	struct i2c_adapter *i2c;
-	const struct ds3000_config *config;
-	struct dvb_frontend frontend;
-	u8 skip_fw_load;
-	/* previous uncorrected block counter for DVB-S2 */
-	u16 prevUCBS2;
-};
-
-static int ds3000_writereg(struct ds3000_state *state, int reg, int data)
-{
-	u8 buf[] = { reg, data };
-	struct i2c_msg msg = { .addr = state->config->demod_address,
-		.flags = 0, .buf = buf, .len = 2 };
-	int err;
-
-	dprintk("%s: write reg 0x%02x, value 0x%02x\n", __func__, reg, data);
-
-	err = i2c_transfer(state->i2c, &msg, 1);
-	if (err != 1) {
-		printk(KERN_ERR "%s: writereg error(err == %i, reg == 0x%02x,"
-			 " value == 0x%02x)\n", __func__, err, reg, data);
-		return -EREMOTEIO;
-	}
-
-	return 0;
-}
-
-static int ds3000_tuner_writereg(struct ds3000_state *state, int reg, int data)
-{
-	u8 buf[] = { reg, data };
-	struct i2c_msg msg = { .addr = 0x60,
-		.flags = 0, .buf = buf, .len = 2 };
-	int err;
-
-	dprintk("%s: write reg 0x%02x, value 0x%02x\n", __func__, reg, data);
-
-	ds3000_writereg(state, 0x03, 0x11);
-	err = i2c_transfer(state->i2c, &msg, 1);
-	if (err != 1) {
-		printk("%s: writereg error(err == %i, reg == 0x%02x,"
-			 " value == 0x%02x)\n", __func__, err, reg, data);
-		return -EREMOTEIO;
-	}
-
-	return 0;
-}
-
-/* I2C write for 8k firmware load */
-static int ds3000_writeFW(struct ds3000_state *state, int reg,
-				const u8 *data, u16 len)
-{
-	int i, ret = -EREMOTEIO;
-	struct i2c_msg msg;
-	u8 *buf;
-
-	buf = kmalloc(33, GFP_KERNEL);
-	if (buf == NULL) {
-		printk(KERN_ERR "Unable to kmalloc\n");
-		ret = -ENOMEM;
-		goto error;
-	}
-
-	*(buf) = reg;
-
-	msg.addr = state->config->demod_address;
-	msg.flags = 0;
-	msg.buf = buf;
-	msg.len = 33;
-
-	for (i = 0; i < len; i += 32) {
-		memcpy(buf + 1, data + i, 32);
-
-		dprintk("%s: write reg 0x%02x, len = %d\n", __func__, reg, len);
-
-		ret = i2c_transfer(state->i2c, &msg, 1);
-		if (ret != 1) {
-			printk(KERN_ERR "%s: write error(err == %i, "
-				"reg == 0x%02x\n", __func__, ret, reg);
-			ret = -EREMOTEIO;
-		}
-	}
-
-error:
-	kfree(buf);
-
-	return ret;
-}
-
-static int ds3000_readreg(struct ds3000_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) {
-		printk(KERN_ERR "%s: reg=0x%x(error=%d)\n", __func__, reg, ret);
-		return ret;
-	}
-
-	dprintk("%s: read reg 0x%02x, value 0x%02x\n", __func__, reg, b1[0]);
-
-	return b1[0];
-}
-
-static int ds3000_tuner_readreg(struct ds3000_state *state, u8 reg)
-{
-	int ret;
-	u8 b0[] = { reg };
-	u8 b1[] = { 0 };
-	struct i2c_msg msg[] = {
-		{
-			.addr = 0x60,
-			.flags = 0,
-			.buf = b0,
-			.len = 1
-		}, {
-			.addr = 0x60,
-			.flags = I2C_M_RD,
-			.buf = b1,
-			.len = 1
-		}
-	};
-
-	ds3000_writereg(state, 0x03, 0x12);
-	ret = i2c_transfer(state->i2c, msg, 2);
-
-	if (ret != 2) {
-		printk(KERN_ERR "%s: reg=0x%x(error=%d)\n", __func__, reg, ret);
-		return ret;
-	}
-
-	dprintk("%s: read reg 0x%02x, value 0x%02x\n", __func__, reg, b1[0]);
-
-	return b1[0];
-}
-
-static int ds3000_load_firmware(struct dvb_frontend *fe,
-					const struct firmware *fw);
-
-static int ds3000_firmware_ondemand(struct dvb_frontend *fe)
-{
-	struct ds3000_state *state = fe->demodulator_priv;
-	const struct firmware *fw;
-	int ret = 0;
-
-	dprintk("%s()\n", __func__);
-
-	if (ds3000_readreg(state, 0xb2) <= 0)
-		return ret;
-
-	if (state->skip_fw_load)
-		return 0;
-	/* Load firmware */
-	/* request the firmware, this will block until someone uploads it */
-	printk(KERN_INFO "%s: Waiting for firmware upload (%s)...\n", __func__,
-				DS3000_DEFAULT_FIRMWARE);
-	ret = request_firmware(&fw, DS3000_DEFAULT_FIRMWARE,
-				state->i2c->dev.parent);
-	printk(KERN_INFO "%s: Waiting for firmware upload(2)...\n", __func__);
-	if (ret) {
-		printk(KERN_ERR "%s: No firmware uploaded (timeout or file not "
-				"found?)\n", __func__);
-		return ret;
-	}
-
-	/* Make sure we don't recurse back through here during loading */
-	state->skip_fw_load = 1;
-
-	ret = ds3000_load_firmware(fe, fw);
-	if (ret)
-		printk("%s: Writing firmware to device failed\n", __func__);
-
-	release_firmware(fw);
-
-	dprintk("%s: Firmware upload %s\n", __func__,
-			ret == 0 ? "complete" : "failed");
-
-	/* Ensure firmware is always loaded if required */
-	state->skip_fw_load = 0;
-
-	return ret;
-}
-
-static int ds3000_load_firmware(struct dvb_frontend *fe,
-					const struct firmware *fw)
-{
-	struct ds3000_state *state = fe->demodulator_priv;
-
-	dprintk("%s\n", __func__);
-	dprintk("Firmware is %zu bytes (%02x %02x .. %02x %02x)\n",
-			fw->size,
-			fw->data[0],
-			fw->data[1],
-			fw->data[fw->size - 2],
-			fw->data[fw->size - 1]);
-
-	/* Begin the firmware load process */
-	ds3000_writereg(state, 0xb2, 0x01);
-	/* write the entire firmware */
-	ds3000_writeFW(state, 0xb0, fw->data, fw->size);
-	ds3000_writereg(state, 0xb2, 0x00);
-
-	return 0;
-}
-
-static int ds3000_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
-{
-	struct ds3000_state *state = fe->demodulator_priv;
-	u8 data;
-
-	dprintk("%s(%d)\n", __func__, voltage);
-
-	data = ds3000_readreg(state, 0xa2);
-	data |= 0x03; /* bit0 V/H, bit1 off/on */
-
-	switch (voltage) {
-	case SEC_VOLTAGE_18:
-		data &= ~0x03;
-		break;
-	case SEC_VOLTAGE_13:
-		data &= ~0x03;
-		data |= 0x01;
-		break;
-	case SEC_VOLTAGE_OFF:
-		break;
-	}
-
-	ds3000_writereg(state, 0xa2, data);
-
-	return 0;
-}
-
-static int ds3000_read_status(struct dvb_frontend *fe, fe_status_t* status)
-{
-	struct ds3000_state *state = fe->demodulator_priv;
-	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
-	int lock;
-
-	*status = 0;
-
-	switch (c->delivery_system) {
-	case SYS_DVBS:
-		lock = ds3000_readreg(state, 0xd1);
-		if ((lock & 0x07) == 0x07)
-			*status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
-				FE_HAS_VITERBI | FE_HAS_SYNC |
-				FE_HAS_LOCK;
-
-		break;
-	case SYS_DVBS2:
-		lock = ds3000_readreg(state, 0x0d);
-		if ((lock & 0x8f) == 0x8f)
-			*status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
-				FE_HAS_VITERBI | FE_HAS_SYNC |
-				FE_HAS_LOCK;
-
-		break;
-	default:
-		return 1;
-	}
-
-	dprintk("%s: status = 0x%02x\n", __func__, lock);
-
-	return 0;
-}
-
-/* read DS3000 BER value */
-static int ds3000_read_ber(struct dvb_frontend *fe, u32* ber)
-{
-	struct ds3000_state *state = fe->demodulator_priv;
-	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
-	u8 data;
-	u32 ber_reading, lpdc_frames;
-
-	dprintk("%s()\n", __func__);
-
-	switch (c->delivery_system) {
-	case SYS_DVBS:
-		/* set the number of bytes checked during
-		BER estimation */
-		ds3000_writereg(state, 0xf9, 0x04);
-		/* read BER estimation status */
-		data = ds3000_readreg(state, 0xf8);
-		/* check if BER estimation is ready */
-		if ((data & 0x10) == 0) {
-			/* this is the number of error bits,
-			to calculate the bit error rate
-			divide to 8388608 */
-			*ber = (ds3000_readreg(state, 0xf7) << 8) |
-				ds3000_readreg(state, 0xf6);
-			/* start counting error bits */
-			/* need to be set twice
-			otherwise it fails sometimes */
-			data |= 0x10;
-			ds3000_writereg(state, 0xf8, data);
-			ds3000_writereg(state, 0xf8, data);
-		} else
-			/* used to indicate that BER estimation
-			is not ready, i.e. BER is unknown */
-			*ber = 0xffffffff;
-		break;
-	case SYS_DVBS2:
-		/* read the number of LPDC decoded frames */
-		lpdc_frames = (ds3000_readreg(state, 0xd7) << 16) |
-				(ds3000_readreg(state, 0xd6) << 8) |
-				ds3000_readreg(state, 0xd5);
-		/* read the number of packets with bad CRC */
-		ber_reading = (ds3000_readreg(state, 0xf8) << 8) |
-				ds3000_readreg(state, 0xf7);
-		if (lpdc_frames > 750) {
-			/* clear LPDC frame counters */
-			ds3000_writereg(state, 0xd1, 0x01);
-			/* clear bad packets counter */
-			ds3000_writereg(state, 0xf9, 0x01);
-			/* enable bad packets counter */
-			ds3000_writereg(state, 0xf9, 0x00);
-			/* enable LPDC frame counters */
-			ds3000_writereg(state, 0xd1, 0x00);
-			*ber = ber_reading;
-		} else
-			/* used to indicate that BER estimation is not ready,
-			i.e. BER is unknown */
-			*ber = 0xffffffff;
-		break;
-	default:
-		return 1;
-	}
-
-	return 0;
-}
-
-/* read TS2020 signal strength */
-static int ds3000_read_signal_strength(struct dvb_frontend *fe,
-						u16 *signal_strength)
-{
-	struct ds3000_state *state = fe->demodulator_priv;
-	u16 sig_reading, sig_strength;
-	u8 rfgain, bbgain;
-
-	dprintk("%s()\n", __func__);
-
-	rfgain = ds3000_tuner_readreg(state, 0x3d) & 0x1f;
-	bbgain = ds3000_tuner_readreg(state, 0x21) & 0x1f;
-
-	if (rfgain > 15)
-		rfgain = 15;
-	if (bbgain > 13)
-		bbgain = 13;
-
-	sig_reading = rfgain * 2 + bbgain * 3;
-
-	sig_strength = 40 + (64 - sig_reading) * 50 / 64 ;
-
-	/* cook the value to be suitable for szap-s2 human readable output */
-	*signal_strength = sig_strength * 1000;
-
-	dprintk("%s: raw / cooked = 0x%04x / 0x%04x\n", __func__,
-			sig_reading, *signal_strength);
-
-	return 0;
-}
-
-/* calculate DS3000 snr value in dB */
-static int ds3000_read_snr(struct dvb_frontend *fe, u16 *snr)
-{
-	struct ds3000_state *state = fe->demodulator_priv;
-	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
-	u8 snr_reading, snr_value;
-	u32 dvbs2_signal_reading, dvbs2_noise_reading, tmp;
-	static const u16 dvbs_snr_tab[] = { /* 20 x Table (rounded up) */
-		0x0000, 0x1b13, 0x2aea, 0x3627, 0x3ede, 0x45fe, 0x4c03,
-		0x513a, 0x55d4, 0x59f2, 0x5dab, 0x6111, 0x6431, 0x6717,
-		0x69c9, 0x6c4e, 0x6eac, 0x70e8, 0x7304, 0x7505
-	};
-	static const u16 dvbs2_snr_tab[] = { /* 80 x Table (rounded up) */
-		0x0000, 0x0bc2, 0x12a3, 0x1785, 0x1b4e, 0x1e65, 0x2103,
-		0x2347, 0x2546, 0x2710, 0x28ae, 0x2a28, 0x2b83, 0x2cc5,
-		0x2df1, 0x2f09, 0x3010, 0x3109, 0x31f4, 0x32d2, 0x33a6,
-		0x3470, 0x3531, 0x35ea, 0x369b, 0x3746, 0x37ea, 0x3888,
-		0x3920, 0x39b3, 0x3a42, 0x3acc, 0x3b51, 0x3bd3, 0x3c51,
-		0x3ccb, 0x3d42, 0x3db6, 0x3e27, 0x3e95, 0x3f00, 0x3f68,
-		0x3fcf, 0x4033, 0x4094, 0x40f4, 0x4151, 0x41ac, 0x4206,
-		0x425e, 0x42b4, 0x4308, 0x435b, 0x43ac, 0x43fc, 0x444a,
-		0x4497, 0x44e2, 0x452d, 0x4576, 0x45bd, 0x4604, 0x4649,
-		0x468e, 0x46d1, 0x4713, 0x4755, 0x4795, 0x47d4, 0x4813,
-		0x4851, 0x488d, 0x48c9, 0x4904, 0x493f, 0x4978, 0x49b1,
-		0x49e9, 0x4a20, 0x4a57
-	};
-
-	dprintk("%s()\n", __func__);
-
-	switch (c->delivery_system) {
-	case SYS_DVBS:
-		snr_reading = ds3000_readreg(state, 0xff);
-		snr_reading /= 8;
-		if (snr_reading == 0)
-			*snr = 0x0000;
-		else {
-			if (snr_reading > 20)
-				snr_reading = 20;
-			snr_value = dvbs_snr_tab[snr_reading - 1] * 10 / 23026;
-			/* cook the value to be suitable for szap-s2
-			human readable output */
-			*snr = snr_value * 8 * 655;
-		}
-		dprintk("%s: raw / cooked = 0x%02x / 0x%04x\n", __func__,
-				snr_reading, *snr);
-		break;
-	case SYS_DVBS2:
-		dvbs2_noise_reading = (ds3000_readreg(state, 0x8c) & 0x3f) +
-				(ds3000_readreg(state, 0x8d) << 4);
-		dvbs2_signal_reading = ds3000_readreg(state, 0x8e);
-		tmp = dvbs2_signal_reading * dvbs2_signal_reading >> 1;
-		if (tmp == 0) {
-			*snr = 0x0000;
-			return 0;
-		}
-		if (dvbs2_noise_reading == 0) {
-			snr_value = 0x0013;
-			/* cook the value to be suitable for szap-s2
-			human readable output */
-			*snr = 0xffff;
-			return 0;
-		}
-		if (tmp > dvbs2_noise_reading) {
-			snr_reading = tmp / dvbs2_noise_reading;
-			if (snr_reading > 80)
-				snr_reading = 80;
-			snr_value = dvbs2_snr_tab[snr_reading - 1] / 1000;
-			/* cook the value to be suitable for szap-s2
-			human readable output */
-			*snr = snr_value * 5 * 655;
-		} else {
-			snr_reading = dvbs2_noise_reading / tmp;
-			if (snr_reading > 80)
-				snr_reading = 80;
-			*snr = -(dvbs2_snr_tab[snr_reading] / 1000);
-		}
-		dprintk("%s: raw / cooked = 0x%02x / 0x%04x\n", __func__,
-				snr_reading, *snr);
-		break;
-	default:
-		return 1;
-	}
-
-	return 0;
-}
-
-/* read DS3000 uncorrected blocks */
-static int ds3000_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
-{
-	struct ds3000_state *state = fe->demodulator_priv;
-	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
-	u8 data;
-	u16 _ucblocks;
-
-	dprintk("%s()\n", __func__);
-
-	switch (c->delivery_system) {
-	case SYS_DVBS:
-		*ucblocks = (ds3000_readreg(state, 0xf5) << 8) |
-				ds3000_readreg(state, 0xf4);
-		data = ds3000_readreg(state, 0xf8);
-		/* clear packet counters */
-		data &= ~0x20;
-		ds3000_writereg(state, 0xf8, data);
-		/* enable packet counters */
-		data |= 0x20;
-		ds3000_writereg(state, 0xf8, data);
-		break;
-	case SYS_DVBS2:
-		_ucblocks = (ds3000_readreg(state, 0xe2) << 8) |
-				ds3000_readreg(state, 0xe1);
-		if (_ucblocks > state->prevUCBS2)
-			*ucblocks = _ucblocks - state->prevUCBS2;
-		else
-			*ucblocks = state->prevUCBS2 - _ucblocks;
-		state->prevUCBS2 = _ucblocks;
-		break;
-	default:
-		return 1;
-	}
-
-	return 0;
-}
-
-static int ds3000_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
-{
-	struct ds3000_state *state = fe->demodulator_priv;
-	u8 data;
-
-	dprintk("%s(%d)\n", __func__, tone);
-	if ((tone != SEC_TONE_ON) && (tone != SEC_TONE_OFF)) {
-		printk(KERN_ERR "%s: Invalid, tone=%d\n", __func__, tone);
-		return -EINVAL;
-	}
-
-	data = ds3000_readreg(state, 0xa2);
-	data &= ~0xc0;
-	ds3000_writereg(state, 0xa2, data);
-
-	switch (tone) {
-	case SEC_TONE_ON:
-		dprintk("%s: setting tone on\n", __func__);
-		data = ds3000_readreg(state, 0xa1);
-		data &= ~0x43;
-		data |= 0x04;
-		ds3000_writereg(state, 0xa1, data);
-		break;
-	case SEC_TONE_OFF:
-		dprintk("%s: setting tone off\n", __func__);
-		data = ds3000_readreg(state, 0xa2);
-		data |= 0x80;
-		ds3000_writereg(state, 0xa2, data);
-		break;
-	}
-
-	return 0;
-}
-
-static int ds3000_send_diseqc_msg(struct dvb_frontend *fe,
-				struct dvb_diseqc_master_cmd *d)
-{
-	struct ds3000_state *state = fe->demodulator_priv;
-	int i;
-	u8 data;
-
-	/* Dump DiSEqC message */
-	dprintk("%s(", __func__);
-	for (i = 0 ; i < d->msg_len;) {
-		dprintk("0x%02x", d->msg[i]);
-		if (++i < d->msg_len)
-			dprintk(", ");
-	}
-
-	/* enable DiSEqC message send pin */
-	data = ds3000_readreg(state, 0xa2);
-	data &= ~0xc0;
-	ds3000_writereg(state, 0xa2, data);
-
-	/* DiSEqC message */
-	for (i = 0; i < d->msg_len; i++)
-		ds3000_writereg(state, 0xa3 + i, d->msg[i]);
-
-	data = ds3000_readreg(state, 0xa1);
-	/* clear DiSEqC message length and status,
-	enable DiSEqC message send */
-	data &= ~0xf8;
-	/* set DiSEqC mode, modulation active during 33 pulses,
-	set DiSEqC message length */
-	data |= ((d->msg_len - 1) << 3) | 0x07;
-	ds3000_writereg(state, 0xa1, data);
-
-	/* wait up to 150ms for DiSEqC transmission to complete */
-	for (i = 0; i < 15; i++) {
-		data = ds3000_readreg(state, 0xa1);
-		if ((data & 0x40) == 0)
-			break;
-		msleep(10);
-	}
-
-	/* DiSEqC timeout after 150ms */
-	if (i == 15) {
-		data = ds3000_readreg(state, 0xa1);
-		data &= ~0x80;
-		data |= 0x40;
-		ds3000_writereg(state, 0xa1, data);
-
-		data = ds3000_readreg(state, 0xa2);
-		data &= ~0xc0;
-		data |= 0x80;
-		ds3000_writereg(state, 0xa2, data);
-
-		return 1;
-	}
-
-	data = ds3000_readreg(state, 0xa2);
-	data &= ~0xc0;
-	data |= 0x80;
-	ds3000_writereg(state, 0xa2, data);
-
-	return 0;
-}
-
-/* Send DiSEqC burst */
-static int ds3000_diseqc_send_burst(struct dvb_frontend *fe,
-					fe_sec_mini_cmd_t burst)
-{
-	struct ds3000_state *state = fe->demodulator_priv;
-	int i;
-	u8 data;
-
-	dprintk("%s()\n", __func__);
-
-	data = ds3000_readreg(state, 0xa2);
-	data &= ~0xc0;
-	ds3000_writereg(state, 0xa2, data);
-
-	/* DiSEqC burst */
-	if (burst == SEC_MINI_A)
-		/* Unmodulated tone burst */
-		ds3000_writereg(state, 0xa1, 0x02);
-	else if (burst == SEC_MINI_B)
-		/* Modulated tone burst */
-		ds3000_writereg(state, 0xa1, 0x01);
-	else
-		return -EINVAL;
-
-	msleep(13);
-	for (i = 0; i < 5; i++) {
-		data = ds3000_readreg(state, 0xa1);
-		if ((data & 0x40) == 0)
-			break;
-		msleep(1);
-	}
-
-	if (i == 5) {
-		data = ds3000_readreg(state, 0xa1);
-		data &= ~0x80;
-		data |= 0x40;
-		ds3000_writereg(state, 0xa1, data);
-
-		data = ds3000_readreg(state, 0xa2);
-		data &= ~0xc0;
-		data |= 0x80;
-		ds3000_writereg(state, 0xa2, data);
-
-		return 1;
-	}
-
-	data = ds3000_readreg(state, 0xa2);
-	data &= ~0xc0;
-	data |= 0x80;
-	ds3000_writereg(state, 0xa2, data);
-
-	return 0;
-}
-
-static void ds3000_release(struct dvb_frontend *fe)
-{
-	struct ds3000_state *state = fe->demodulator_priv;
-	dprintk("%s\n", __func__);
-	kfree(state);
-}
-
-static struct dvb_frontend_ops ds3000_ops;
-
-struct dvb_frontend *ds3000_attach(const struct ds3000_config *config,
-				    struct i2c_adapter *i2c)
-{
-	struct ds3000_state *state = NULL;
-	int ret;
-
-	dprintk("%s\n", __func__);
-
-	/* allocate memory for the internal state */
-	state = kzalloc(sizeof(struct ds3000_state), GFP_KERNEL);
-	if (state == NULL) {
-		printk(KERN_ERR "Unable to kmalloc\n");
-		goto error2;
-	}
-
-	state->config = config;
-	state->i2c = i2c;
-	state->prevUCBS2 = 0;
-
-	/* check if the demod is present */
-	ret = ds3000_readreg(state, 0x00) & 0xfe;
-	if (ret != 0xe0) {
-		printk(KERN_ERR "Invalid probe, probably not a DS3000\n");
-		goto error3;
-	}
-
-	printk(KERN_INFO "DS3000 chip version: %d.%d attached.\n",
-			ds3000_readreg(state, 0x02),
-			ds3000_readreg(state, 0x01));
-
-	memcpy(&state->frontend.ops, &ds3000_ops,
-			sizeof(struct dvb_frontend_ops));
-	state->frontend.demodulator_priv = state;
-	return &state->frontend;
-
-error3:
-	kfree(state);
-error2:
-	return NULL;
-}
-EXPORT_SYMBOL(ds3000_attach);
-
-static int ds3000_set_carrier_offset(struct dvb_frontend *fe,
-					s32 carrier_offset_khz)
-{
-	struct ds3000_state *state = fe->demodulator_priv;
-	s32 tmp;
-
-	tmp = carrier_offset_khz;
-	tmp *= 65536;
-	tmp = (2 * tmp + DS3000_SAMPLE_RATE) / (2 * DS3000_SAMPLE_RATE);
-
-	if (tmp < 0)
-		tmp += 65536;
-
-	ds3000_writereg(state, 0x5f, tmp >> 8);
-	ds3000_writereg(state, 0x5e, tmp & 0xff);
-
-	return 0;
-}
-
-static int ds3000_set_frontend(struct dvb_frontend *fe)
-{
-	struct ds3000_state *state = fe->demodulator_priv;
-	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
-
-	int i;
-	fe_status_t status;
-	u8 mlpf, mlpf_new, mlpf_max, mlpf_min, nlpf, div4;
-	s32 offset_khz;
-	u16 value, ndiv;
-	u32 f3db;
-
-	dprintk("%s() ", __func__);
-
-	if (state->config->set_ts_params)
-		state->config->set_ts_params(fe, 0);
-	/* Tune */
-	/* unknown */
-	ds3000_tuner_writereg(state, 0x07, 0x02);
-	ds3000_tuner_writereg(state, 0x10, 0x00);
-	ds3000_tuner_writereg(state, 0x60, 0x79);
-	ds3000_tuner_writereg(state, 0x08, 0x01);
-	ds3000_tuner_writereg(state, 0x00, 0x01);
-	div4 = 0;
-
-	/* calculate and set freq divider */
-	if (c->frequency < 1146000) {
-		ds3000_tuner_writereg(state, 0x10, 0x11);
-		div4 = 1;
-		ndiv = ((c->frequency * (6 + 8) * 4) +
-				(DS3000_XTAL_FREQ / 2)) /
-				DS3000_XTAL_FREQ - 1024;
-	} else {
-		ds3000_tuner_writereg(state, 0x10, 0x01);
-		ndiv = ((c->frequency * (6 + 8) * 2) +
-				(DS3000_XTAL_FREQ / 2)) /
-				DS3000_XTAL_FREQ - 1024;
-	}
-
-	ds3000_tuner_writereg(state, 0x01, (ndiv & 0x0f00) >> 8);
-	ds3000_tuner_writereg(state, 0x02, ndiv & 0x00ff);
-
-	/* set pll */
-	ds3000_tuner_writereg(state, 0x03, 0x06);
-	ds3000_tuner_writereg(state, 0x51, 0x0f);
-	ds3000_tuner_writereg(state, 0x51, 0x1f);
-	ds3000_tuner_writereg(state, 0x50, 0x10);
-	ds3000_tuner_writereg(state, 0x50, 0x00);
-	msleep(5);
-
-	/* unknown */
-	ds3000_tuner_writereg(state, 0x51, 0x17);
-	ds3000_tuner_writereg(state, 0x51, 0x1f);
-	ds3000_tuner_writereg(state, 0x50, 0x08);
-	ds3000_tuner_writereg(state, 0x50, 0x00);
-	msleep(5);
-
-	value = ds3000_tuner_readreg(state, 0x3d);
-	value &= 0x0f;
-	if ((value > 4) && (value < 15)) {
-		value -= 3;
-		if (value < 4)
-			value = 4;
-		value = ((value << 3) | 0x01) & 0x79;
-	}
-
-	ds3000_tuner_writereg(state, 0x60, value);
-	ds3000_tuner_writereg(state, 0x51, 0x17);
-	ds3000_tuner_writereg(state, 0x51, 0x1f);
-	ds3000_tuner_writereg(state, 0x50, 0x08);
-	ds3000_tuner_writereg(state, 0x50, 0x00);
-
-	/* set low-pass filter period */
-	ds3000_tuner_writereg(state, 0x04, 0x2e);
-	ds3000_tuner_writereg(state, 0x51, 0x1b);
-	ds3000_tuner_writereg(state, 0x51, 0x1f);
-	ds3000_tuner_writereg(state, 0x50, 0x04);
-	ds3000_tuner_writereg(state, 0x50, 0x00);
-	msleep(5);
-
-	f3db = ((c->symbol_rate / 1000) << 2) / 5 + 2000;
-	if ((c->symbol_rate / 1000) < 5000)
-		f3db += 3000;
-	if (f3db < 7000)
-		f3db = 7000;
-	if (f3db > 40000)
-		f3db = 40000;
-
-	/* set low-pass filter baseband */
-	value = ds3000_tuner_readreg(state, 0x26);
-	mlpf = 0x2e * 207 / ((value << 1) + 151);
-	mlpf_max = mlpf * 135 / 100;
-	mlpf_min = mlpf * 78 / 100;
-	if (mlpf_max > 63)
-		mlpf_max = 63;
-
-	/* rounded to the closest integer */
-	nlpf = ((mlpf * f3db * 1000) + (2766 * DS3000_XTAL_FREQ / 2))
-			/ (2766 * DS3000_XTAL_FREQ);
-	if (nlpf > 23)
-		nlpf = 23;
-	if (nlpf < 1)
-		nlpf = 1;
-
-	/* rounded to the closest integer */
-	mlpf_new = ((DS3000_XTAL_FREQ * nlpf * 2766) +
-			(1000 * f3db / 2)) / (1000 * f3db);
-
-	if (mlpf_new < mlpf_min) {
-		nlpf++;
-		mlpf_new = ((DS3000_XTAL_FREQ * nlpf * 2766) +
-				(1000 * f3db / 2)) / (1000 * f3db);
-	}
-
-	if (mlpf_new > mlpf_max)
-		mlpf_new = mlpf_max;
-
-	ds3000_tuner_writereg(state, 0x04, mlpf_new);
-	ds3000_tuner_writereg(state, 0x06, nlpf);
-	ds3000_tuner_writereg(state, 0x51, 0x1b);
-	ds3000_tuner_writereg(state, 0x51, 0x1f);
-	ds3000_tuner_writereg(state, 0x50, 0x04);
-	ds3000_tuner_writereg(state, 0x50, 0x00);
-	msleep(5);
-
-	/* unknown */
-	ds3000_tuner_writereg(state, 0x51, 0x1e);
-	ds3000_tuner_writereg(state, 0x51, 0x1f);
-	ds3000_tuner_writereg(state, 0x50, 0x01);
-	ds3000_tuner_writereg(state, 0x50, 0x00);
-	msleep(60);
-
-	offset_khz = (ndiv - ndiv % 2 + 1024) * DS3000_XTAL_FREQ
-		/ (6 + 8) / (div4 + 1) / 2 - c->frequency;
-
-	/* ds3000 global reset */
-	ds3000_writereg(state, 0x07, 0x80);
-	ds3000_writereg(state, 0x07, 0x00);
-	/* ds3000 build-in uC reset */
-	ds3000_writereg(state, 0xb2, 0x01);
-	/* ds3000 software reset */
-	ds3000_writereg(state, 0x00, 0x01);
-
-	switch (c->delivery_system) {
-	case SYS_DVBS:
-		/* initialise the demod in DVB-S mode */
-		for (i = 0; i < sizeof(ds3000_dvbs_init_tab); i += 2)
-			ds3000_writereg(state,
-				ds3000_dvbs_init_tab[i],
-				ds3000_dvbs_init_tab[i + 1]);
-		value = ds3000_readreg(state, 0xfe);
-		value &= 0xc0;
-		value |= 0x1b;
-		ds3000_writereg(state, 0xfe, value);
-		break;
-	case SYS_DVBS2:
-		/* initialise the demod in DVB-S2 mode */
-		for (i = 0; i < sizeof(ds3000_dvbs2_init_tab); i += 2)
-			ds3000_writereg(state,
-				ds3000_dvbs2_init_tab[i],
-				ds3000_dvbs2_init_tab[i + 1]);
-		if (c->symbol_rate >= 30000000)
-			ds3000_writereg(state, 0xfe, 0x54);
-		else
-			ds3000_writereg(state, 0xfe, 0x98);
-		break;
-	default:
-		return 1;
-	}
-
-	/* enable 27MHz clock output */
-	ds3000_writereg(state, 0x29, 0x80);
-	/* enable ac coupling */
-	ds3000_writereg(state, 0x25, 0x8a);
-
-	/* enhance symbol rate performance */
-	if ((c->symbol_rate / 1000) <= 5000) {
-		value = 29777 / (c->symbol_rate / 1000) + 1;
-		if (value % 2 != 0)
-			value++;
-		ds3000_writereg(state, 0xc3, 0x0d);
-		ds3000_writereg(state, 0xc8, value);
-		ds3000_writereg(state, 0xc4, 0x10);
-		ds3000_writereg(state, 0xc7, 0x0e);
-	} else if ((c->symbol_rate / 1000) <= 10000) {
-		value = 92166 / (c->symbol_rate / 1000) + 1;
-		if (value % 2 != 0)
-			value++;
-		ds3000_writereg(state, 0xc3, 0x07);
-		ds3000_writereg(state, 0xc8, value);
-		ds3000_writereg(state, 0xc4, 0x09);
-		ds3000_writereg(state, 0xc7, 0x12);
-	} else if ((c->symbol_rate / 1000) <= 20000) {
-		value = 64516 / (c->symbol_rate / 1000) + 1;
-		ds3000_writereg(state, 0xc3, value);
-		ds3000_writereg(state, 0xc8, 0x0e);
-		ds3000_writereg(state, 0xc4, 0x07);
-		ds3000_writereg(state, 0xc7, 0x18);
-	} else {
-		value = 129032 / (c->symbol_rate / 1000) + 1;
-		ds3000_writereg(state, 0xc3, value);
-		ds3000_writereg(state, 0xc8, 0x0a);
-		ds3000_writereg(state, 0xc4, 0x05);
-		ds3000_writereg(state, 0xc7, 0x24);
-	}
-
-	/* normalized symbol rate rounded to the closest integer */
-	value = (((c->symbol_rate / 1000) << 16) +
-			(DS3000_SAMPLE_RATE / 2)) / DS3000_SAMPLE_RATE;
-	ds3000_writereg(state, 0x61, value & 0x00ff);
-	ds3000_writereg(state, 0x62, (value & 0xff00) >> 8);
-
-	/* co-channel interference cancellation disabled */
-	ds3000_writereg(state, 0x56, 0x00);
-
-	/* equalizer disabled */
-	ds3000_writereg(state, 0x76, 0x00);
-
-	/*ds3000_writereg(state, 0x08, 0x03);
-	ds3000_writereg(state, 0xfd, 0x22);
-	ds3000_writereg(state, 0x08, 0x07);
-	ds3000_writereg(state, 0xfd, 0x42);
-	ds3000_writereg(state, 0x08, 0x07);*/
-
-	if (state->config->ci_mode) {
-		switch (c->delivery_system) {
-		case SYS_DVBS:
-		default:
-			ds3000_writereg(state, 0xfd, 0x80);
-		break;
-		case SYS_DVBS2:
-			ds3000_writereg(state, 0xfd, 0x01);
-			break;
-		}
-	}
-
-	/* ds3000 out of software reset */
-	ds3000_writereg(state, 0x00, 0x00);
-	/* start ds3000 build-in uC */
-	ds3000_writereg(state, 0xb2, 0x00);
-
-	ds3000_set_carrier_offset(fe, offset_khz);
-
-	for (i = 0; i < 30 ; i++) {
-		ds3000_read_status(fe, &status);
-		if (status & FE_HAS_LOCK)
-			break;
-
-		msleep(10);
-	}
-
-	return 0;
-}
-
-static int ds3000_tune(struct dvb_frontend *fe,
-			bool re_tune,
-			unsigned int mode_flags,
-			unsigned int *delay,
-			fe_status_t *status)
-{
-	if (re_tune) {
-		int ret = ds3000_set_frontend(fe);
-		if (ret)
-			return ret;
-	}
-
-	*delay = HZ / 5;
-
-	return ds3000_read_status(fe, status);
-}
-
-static enum dvbfe_algo ds3000_get_algo(struct dvb_frontend *fe)
-{
-	dprintk("%s()\n", __func__);
-	return DVBFE_ALGO_HW;
-}
-
-/*
- * Initialise or wake up device
- *
- * Power config will reset and load initial firmware if required
- */
-static int ds3000_initfe(struct dvb_frontend *fe)
-{
-	struct ds3000_state *state = fe->demodulator_priv;
-	int ret;
-
-	dprintk("%s()\n", __func__);
-	/* hard reset */
-	ds3000_writereg(state, 0x08, 0x01 | ds3000_readreg(state, 0x08));
-	msleep(1);
-
-	/* TS2020 init */
-	ds3000_tuner_writereg(state, 0x42, 0x73);
-	ds3000_tuner_writereg(state, 0x05, 0x01);
-	ds3000_tuner_writereg(state, 0x62, 0xf5);
-	/* Load the firmware if required */
-	ret = ds3000_firmware_ondemand(fe);
-	if (ret != 0) {
-		printk(KERN_ERR "%s: Unable initialize firmware\n", __func__);
-		return ret;
-	}
-
-	return 0;
-}
-
-/* Put device to sleep */
-static int ds3000_sleep(struct dvb_frontend *fe)
-{
-	dprintk("%s()\n", __func__);
-	return 0;
-}
-
-static struct dvb_frontend_ops ds3000_ops = {
-	.delsys = { SYS_DVBS, SYS_DVBS2},
-	.info = {
-		.name = "Montage Technology DS3000/TS2020",
-		.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_2G_MODULATION |
-			FE_CAN_QPSK | FE_CAN_RECOVER
-	},
-
-	.release = ds3000_release,
-
-	.init = ds3000_initfe,
-	.sleep = ds3000_sleep,
-	.read_status = ds3000_read_status,
-	.read_ber = ds3000_read_ber,
-	.read_signal_strength = ds3000_read_signal_strength,
-	.read_snr = ds3000_read_snr,
-	.read_ucblocks = ds3000_read_ucblocks,
-	.set_voltage = ds3000_set_voltage,
-	.set_tone = ds3000_set_tone,
-	.diseqc_send_master_cmd = ds3000_send_diseqc_msg,
-	.diseqc_send_burst = ds3000_diseqc_send_burst,
-	.get_frontend_algo = ds3000_get_algo,
-
-	.set_frontend = ds3000_set_frontend,
-	.tune = ds3000_tune,
-};
-
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "Activates frontend debugging (default:0)");
-
-MODULE_DESCRIPTION("DVB Frontend module for Montage Technology "
-			"DS3000/TS2020 hardware");
-MODULE_AUTHOR("Konstantin Dimitrov");
-MODULE_LICENSE("GPL");