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Commit c1965eae authored by Konstantin Dimitrov's avatar Konstantin Dimitrov Committed by Mauro Carvalho Chehab
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[media] ds3000: remove ts2020 tuner related code 



remove ts2020 tuner related code from ds3000 driver
prepare ds3000 driver for using external tuner driver

Signed-off-by: default avatarKonstantin Dimitrov <kosio.dimitrov@gmail.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 10a5c914

drivers/media/dvb-frontends/ds3000.c

+23 −219
Original line number Diff line number Diff line 
/*

    Montage Technology DS3000/TS2020 - DVBS/S2 Demodulator/Tuner driver

    Copyright (C) 2009 Konstantin Dimitrov <kosio.dimitrov@gmail.com>

    Montage Technology DS3000 - DVBS/S2 Demodulator driver

    Copyright (C) 2009-2012 Konstantin Dimitrov <kosio.dimitrov@gmail.com>



    Copyright (C) 2009 TurboSight.com

    Copyright (C) 2009-2012 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
@@ -42,7 +42,6 @@ static int debug; 
#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[] = {
@@ -256,22 +255,14 @@ static int ds3000_writereg(struct ds3000_state *state, int reg, int data) 
	return 0;

}



static int ds3000_tuner_writereg(struct ds3000_state *state, int reg, int data)

static int ds3000_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)

{

	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);

	struct ds3000_state *state = fe->demodulator_priv;



	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;

	}

	if (enable)

		ds3000_writereg(state, 0x03, 0x12);

	else

		ds3000_writereg(state, 0x03, 0x02);



	return 0;

}
@@ -348,38 +339,6 @@ static int ds3000_readreg(struct ds3000_state *state, u8 reg) 
	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);
@@ -568,37 +527,6 @@ static int ds3000_read_ber(struct dvb_frontend *fe, u32* ber) 
	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)

{
@@ -952,133 +880,17 @@ static int ds3000_set_frontend(struct dvb_frontend *fe) 


	int i;

	fe_status_t status;

	u8 mlpf, mlpf_new, mlpf_max, mlpf_min, nlpf, div4;

	s32 offset_khz;

	u16 value, ndiv;

	u32 f3db;

	u32 frequency;

	u16 value;



	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;

	if (fe->ops.tuner_ops.set_params)

		fe->ops.tuner_ops.set_params(fe);



	/* ds3000 global reset */

	ds3000_writereg(state, 0x07, 0x80);
@@ -1186,7 +998,11 @@ static int ds3000_set_frontend(struct dvb_frontend *fe) 
	/* start ds3000 build-in uC */

	ds3000_writereg(state, 0xb2, 0x00);



	if (fe->ops.tuner_ops.get_frequency) {

		fe->ops.tuner_ops.get_frequency(fe, &frequency);

		offset_khz = frequency - c->frequency;

		ds3000_set_carrier_offset(fe, offset_khz);

	}



	for (i = 0; i < 30 ; i++) {

		ds3000_read_status(fe, &status);
@@ -1237,10 +1053,6 @@ static int ds3000_initfe(struct dvb_frontend *fe) 
	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) {
@@ -1251,17 +1063,10 @@ static int ds3000_initfe(struct dvb_frontend *fe) 
	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",

		.name = "Montage Technology DS3000",

		.frequency_min = 950000,

		.frequency_max = 2150000,

		.frequency_stepsize = 1011, /* kHz for QPSK frontends */
@@ -1279,10 +1084,9 @@ static struct dvb_frontend_ops ds3000_ops = { 
	.release = ds3000_release,



	.init = ds3000_initfe,

	.sleep = ds3000_sleep,

	.i2c_gate_ctrl = ds3000_i2c_gate_ctrl,

	.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,
@@ -1299,7 +1103,7 @@ 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");

			"DS3000 hardware");

MODULE_AUTHOR("Konstantin Dimitrov <kosio.dimitrov@gmail.com>");

MODULE_LICENSE("GPL");

MODULE_FIRMWARE(DS3000_DEFAULT_FIRMWARE);

drivers/media/dvb-frontends/ds3000.h

+4 −4
Original line number Diff line number Diff line 
/*

    Montage Technology DS3000/TS2020 - DVBS/S2 Satellite demod/tuner driver

    Copyright (C) 2009 Konstantin Dimitrov <kosio.dimitrov@gmail.com>

    Montage Technology DS3000 - DVBS/S2 Demodulator driver

    Copyright (C) 2009-2012 Konstantin Dimitrov <kosio.dimitrov@gmail.com>



    Copyright (C) 2009 TurboSight.com

    Copyright (C) 2009-2012 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