forked from Minki/linux
[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: Konstantin Dimitrov <kosio.dimitrov@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Konstantin Dimitrov
Mauro Carvalho Chehab
parent
10a5c9148e
commit
c1965eae65
@ -1,8 +1,8 @@
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/*
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Montage Technology DS3000/TS2020 - DVBS/S2 Demodulator/Tuner driver
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Copyright (C) 2009 Konstantin Dimitrov <kosio.dimitrov@gmail.com>
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Montage Technology DS3000 - DVBS/S2 Demodulator driver
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Copyright (C) 2009-2012 Konstantin Dimitrov <kosio.dimitrov@gmail.com>
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Copyright (C) 2009 TurboSight.com
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Copyright (C) 2009-2012 TurboSight.com
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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@ -42,7 +42,6 @@ static int debug;
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#define DS3000_DEFAULT_FIRMWARE "dvb-fe-ds3000.fw"
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#define DS3000_SAMPLE_RATE 96000 /* in kHz */
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#define DS3000_XTAL_FREQ 27000 /* in kHz */
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/* Register values to initialise the demod in DVB-S mode */
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static u8 ds3000_dvbs_init_tab[] = {
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@ -256,22 +255,14 @@ static int ds3000_writereg(struct ds3000_state *state, int reg, int data)
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return 0;
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}
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static int ds3000_tuner_writereg(struct ds3000_state *state, int reg, int data)
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static int ds3000_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
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{
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u8 buf[] = { reg, data };
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struct i2c_msg msg = { .addr = 0x60,
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.flags = 0, .buf = buf, .len = 2 };
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int err;
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struct ds3000_state *state = fe->demodulator_priv;
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dprintk("%s: write reg 0x%02x, value 0x%02x\n", __func__, reg, data);
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ds3000_writereg(state, 0x03, 0x11);
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err = i2c_transfer(state->i2c, &msg, 1);
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if (err != 1) {
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printk("%s: writereg error(err == %i, reg == 0x%02x,"
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" value == 0x%02x)\n", __func__, err, reg, data);
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return -EREMOTEIO;
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}
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if (enable)
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ds3000_writereg(state, 0x03, 0x12);
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else
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ds3000_writereg(state, 0x03, 0x02);
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return 0;
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}
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@ -348,38 +339,6 @@ static int ds3000_readreg(struct ds3000_state *state, u8 reg)
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return b1[0];
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}
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static int ds3000_tuner_readreg(struct ds3000_state *state, u8 reg)
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{
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int ret;
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u8 b0[] = { reg };
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u8 b1[] = { 0 };
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struct i2c_msg msg[] = {
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{
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.addr = 0x60,
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.flags = 0,
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.buf = b0,
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.len = 1
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}, {
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.addr = 0x60,
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.flags = I2C_M_RD,
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.buf = b1,
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.len = 1
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}
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};
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ds3000_writereg(state, 0x03, 0x12);
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ret = i2c_transfer(state->i2c, msg, 2);
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if (ret != 2) {
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printk(KERN_ERR "%s: reg=0x%x(error=%d)\n", __func__, reg, ret);
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return ret;
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}
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dprintk("%s: read reg 0x%02x, value 0x%02x\n", __func__, reg, b1[0]);
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return b1[0];
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}
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static int ds3000_load_firmware(struct dvb_frontend *fe,
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const struct firmware *fw);
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@ -568,37 +527,6 @@ static int ds3000_read_ber(struct dvb_frontend *fe, u32* ber)
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return 0;
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}
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/* read TS2020 signal strength */
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static int ds3000_read_signal_strength(struct dvb_frontend *fe,
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u16 *signal_strength)
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{
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struct ds3000_state *state = fe->demodulator_priv;
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u16 sig_reading, sig_strength;
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u8 rfgain, bbgain;
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dprintk("%s()\n", __func__);
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rfgain = ds3000_tuner_readreg(state, 0x3d) & 0x1f;
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bbgain = ds3000_tuner_readreg(state, 0x21) & 0x1f;
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if (rfgain > 15)
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rfgain = 15;
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if (bbgain > 13)
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bbgain = 13;
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sig_reading = rfgain * 2 + bbgain * 3;
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sig_strength = 40 + (64 - sig_reading) * 50 / 64 ;
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/* cook the value to be suitable for szap-s2 human readable output */
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*signal_strength = sig_strength * 1000;
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dprintk("%s: raw / cooked = 0x%04x / 0x%04x\n", __func__,
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sig_reading, *signal_strength);
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return 0;
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}
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/* calculate DS3000 snr value in dB */
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static int ds3000_read_snr(struct dvb_frontend *fe, u16 *snr)
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{
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@ -952,133 +880,17 @@ static int ds3000_set_frontend(struct dvb_frontend *fe)
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int i;
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fe_status_t status;
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u8 mlpf, mlpf_new, mlpf_max, mlpf_min, nlpf, div4;
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s32 offset_khz;
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u16 value, ndiv;
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u32 f3db;
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u32 frequency;
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u16 value;
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dprintk("%s() ", __func__);
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if (state->config->set_ts_params)
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state->config->set_ts_params(fe, 0);
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/* Tune */
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/* unknown */
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ds3000_tuner_writereg(state, 0x07, 0x02);
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ds3000_tuner_writereg(state, 0x10, 0x00);
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ds3000_tuner_writereg(state, 0x60, 0x79);
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ds3000_tuner_writereg(state, 0x08, 0x01);
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ds3000_tuner_writereg(state, 0x00, 0x01);
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div4 = 0;
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/* calculate and set freq divider */
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if (c->frequency < 1146000) {
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ds3000_tuner_writereg(state, 0x10, 0x11);
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div4 = 1;
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ndiv = ((c->frequency * (6 + 8) * 4) +
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(DS3000_XTAL_FREQ / 2)) /
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DS3000_XTAL_FREQ - 1024;
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} else {
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ds3000_tuner_writereg(state, 0x10, 0x01);
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ndiv = ((c->frequency * (6 + 8) * 2) +
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(DS3000_XTAL_FREQ / 2)) /
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DS3000_XTAL_FREQ - 1024;
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}
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ds3000_tuner_writereg(state, 0x01, (ndiv & 0x0f00) >> 8);
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ds3000_tuner_writereg(state, 0x02, ndiv & 0x00ff);
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/* set pll */
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ds3000_tuner_writereg(state, 0x03, 0x06);
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ds3000_tuner_writereg(state, 0x51, 0x0f);
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ds3000_tuner_writereg(state, 0x51, 0x1f);
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ds3000_tuner_writereg(state, 0x50, 0x10);
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ds3000_tuner_writereg(state, 0x50, 0x00);
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msleep(5);
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/* unknown */
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ds3000_tuner_writereg(state, 0x51, 0x17);
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ds3000_tuner_writereg(state, 0x51, 0x1f);
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ds3000_tuner_writereg(state, 0x50, 0x08);
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ds3000_tuner_writereg(state, 0x50, 0x00);
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msleep(5);
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value = ds3000_tuner_readreg(state, 0x3d);
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value &= 0x0f;
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if ((value > 4) && (value < 15)) {
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value -= 3;
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if (value < 4)
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value = 4;
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value = ((value << 3) | 0x01) & 0x79;
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}
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ds3000_tuner_writereg(state, 0x60, value);
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ds3000_tuner_writereg(state, 0x51, 0x17);
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ds3000_tuner_writereg(state, 0x51, 0x1f);
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ds3000_tuner_writereg(state, 0x50, 0x08);
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ds3000_tuner_writereg(state, 0x50, 0x00);
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/* set low-pass filter period */
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ds3000_tuner_writereg(state, 0x04, 0x2e);
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ds3000_tuner_writereg(state, 0x51, 0x1b);
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ds3000_tuner_writereg(state, 0x51, 0x1f);
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ds3000_tuner_writereg(state, 0x50, 0x04);
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ds3000_tuner_writereg(state, 0x50, 0x00);
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msleep(5);
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f3db = ((c->symbol_rate / 1000) << 2) / 5 + 2000;
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if ((c->symbol_rate / 1000) < 5000)
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f3db += 3000;
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if (f3db < 7000)
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f3db = 7000;
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if (f3db > 40000)
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f3db = 40000;
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/* set low-pass filter baseband */
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value = ds3000_tuner_readreg(state, 0x26);
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mlpf = 0x2e * 207 / ((value << 1) + 151);
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mlpf_max = mlpf * 135 / 100;
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mlpf_min = mlpf * 78 / 100;
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if (mlpf_max > 63)
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mlpf_max = 63;
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/* rounded to the closest integer */
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nlpf = ((mlpf * f3db * 1000) + (2766 * DS3000_XTAL_FREQ / 2))
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/ (2766 * DS3000_XTAL_FREQ);
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if (nlpf > 23)
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nlpf = 23;
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if (nlpf < 1)
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nlpf = 1;
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/* rounded to the closest integer */
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mlpf_new = ((DS3000_XTAL_FREQ * nlpf * 2766) +
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(1000 * f3db / 2)) / (1000 * f3db);
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if (mlpf_new < mlpf_min) {
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nlpf++;
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mlpf_new = ((DS3000_XTAL_FREQ * nlpf * 2766) +
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(1000 * f3db / 2)) / (1000 * f3db);
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}
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if (mlpf_new > mlpf_max)
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mlpf_new = mlpf_max;
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ds3000_tuner_writereg(state, 0x04, mlpf_new);
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ds3000_tuner_writereg(state, 0x06, nlpf);
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ds3000_tuner_writereg(state, 0x51, 0x1b);
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ds3000_tuner_writereg(state, 0x51, 0x1f);
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ds3000_tuner_writereg(state, 0x50, 0x04);
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ds3000_tuner_writereg(state, 0x50, 0x00);
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msleep(5);
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/* unknown */
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ds3000_tuner_writereg(state, 0x51, 0x1e);
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ds3000_tuner_writereg(state, 0x51, 0x1f);
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ds3000_tuner_writereg(state, 0x50, 0x01);
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ds3000_tuner_writereg(state, 0x50, 0x00);
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msleep(60);
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offset_khz = (ndiv - ndiv % 2 + 1024) * DS3000_XTAL_FREQ
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/ (6 + 8) / (div4 + 1) / 2 - c->frequency;
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if (fe->ops.tuner_ops.set_params)
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fe->ops.tuner_ops.set_params(fe);
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/* ds3000 global reset */
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ds3000_writereg(state, 0x07, 0x80);
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@ -1186,7 +998,11 @@ static int ds3000_set_frontend(struct dvb_frontend *fe)
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/* start ds3000 build-in uC */
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ds3000_writereg(state, 0xb2, 0x00);
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ds3000_set_carrier_offset(fe, offset_khz);
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if (fe->ops.tuner_ops.get_frequency) {
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fe->ops.tuner_ops.get_frequency(fe, &frequency);
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offset_khz = frequency - c->frequency;
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ds3000_set_carrier_offset(fe, offset_khz);
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}
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for (i = 0; i < 30 ; i++) {
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ds3000_read_status(fe, &status);
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@ -1237,10 +1053,6 @@ static int ds3000_initfe(struct dvb_frontend *fe)
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ds3000_writereg(state, 0x08, 0x01 | ds3000_readreg(state, 0x08));
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msleep(1);
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/* TS2020 init */
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ds3000_tuner_writereg(state, 0x42, 0x73);
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ds3000_tuner_writereg(state, 0x05, 0x01);
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ds3000_tuner_writereg(state, 0x62, 0xf5);
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/* Load the firmware if required */
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ret = ds3000_firmware_ondemand(fe);
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if (ret != 0) {
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@ -1251,17 +1063,10 @@ static int ds3000_initfe(struct dvb_frontend *fe)
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return 0;
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}
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/* Put device to sleep */
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static int ds3000_sleep(struct dvb_frontend *fe)
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{
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dprintk("%s()\n", __func__);
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return 0;
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}
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static struct dvb_frontend_ops ds3000_ops = {
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.delsys = { SYS_DVBS, SYS_DVBS2},
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.delsys = { SYS_DVBS, SYS_DVBS2 },
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.info = {
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.name = "Montage Technology DS3000/TS2020",
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.name = "Montage Technology DS3000",
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.frequency_min = 950000,
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.frequency_max = 2150000,
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.frequency_stepsize = 1011, /* kHz for QPSK frontends */
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@ -1279,10 +1084,9 @@ static struct dvb_frontend_ops ds3000_ops = {
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.release = ds3000_release,
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.init = ds3000_initfe,
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.sleep = ds3000_sleep,
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.i2c_gate_ctrl = ds3000_i2c_gate_ctrl,
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.read_status = ds3000_read_status,
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.read_ber = ds3000_read_ber,
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.read_signal_strength = ds3000_read_signal_strength,
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.read_snr = ds3000_read_snr,
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.read_ucblocks = ds3000_read_ucblocks,
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.set_voltage = ds3000_set_voltage,
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@ -1299,7 +1103,7 @@ module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "Activates frontend debugging (default:0)");
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MODULE_DESCRIPTION("DVB Frontend module for Montage Technology "
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"DS3000/TS2020 hardware");
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MODULE_AUTHOR("Konstantin Dimitrov");
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"DS3000 hardware");
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MODULE_AUTHOR("Konstantin Dimitrov <kosio.dimitrov@gmail.com>");
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MODULE_LICENSE("GPL");
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MODULE_FIRMWARE(DS3000_DEFAULT_FIRMWARE);
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@ -1,8 +1,8 @@
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/*
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Montage Technology DS3000/TS2020 - DVBS/S2 Satellite demod/tuner driver
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Copyright (C) 2009 Konstantin Dimitrov <kosio.dimitrov@gmail.com>
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Montage Technology DS3000 - DVBS/S2 Demodulator driver
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Copyright (C) 2009-2012 Konstantin Dimitrov <kosio.dimitrov@gmail.com>
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Copyright (C) 2009 TurboSight.com
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Copyright (C) 2009-2012 TurboSight.com
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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@ -17,7 +17,7 @@
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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*/
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#ifndef DS3000_H
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#define DS3000_H
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Block a user