remove ts2020 tuner related code from ds3000 driver
prepare ds3000 driver for using external tuner driver
Signed-off-by: Konstantin Dimitrov <kosio.dimitrov@xxxxxxxxx>
--- a/linux/drivers/media/dvb/frontends/ds3000.h 2011-02-27
06:45:21.000000000 +0200
+++ b/linux/drivers/media/dvb/frontends/ds3000.h 2012-05-07
00:44:19.188554007 +0300
@@ -1,8 +1,8 @@
/*
- Montage Technology DS3000/TS2020 - DVBS/S2 Satellite demod/tuner driver
- Copyright (C) 2009 Konstantin Dimitrov <kosio.dimitrov@xxxxxxxxx>
+ Montage Technology DS3000 - DVBS/S2 Demodulator driver
+ Copyright (C) 2009-2012 Konstantin Dimitrov <kosio.dimitrov@xxxxxxxxx>
- 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
@@ -17,7 +17,7 @@
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.
-*/
+ */
#ifndef DS3000_H
#define DS3000_H
@@ -30,6 +30,8 @@
u8 ci_mode;
/* Set device param to start dma */
int (*set_ts_params)(struct dvb_frontend *fe, int is_punctured);
+ int (*tuner_set_frequency) (struct dvb_frontend *fe, u32 frequency);
+ int (*tuner_get_frequency) (struct dvb_frontend *fe, u32 *frequency);
};
#if defined(CONFIG_DVB_DS3000) || \
--- a/linux/drivers/media/dvb/frontends/ds3000.c 2012-01-19
06:45:32.000000000 +0200
+++ b/linux/drivers/media/dvb/frontends/ds3000.c 2012-05-07
00:40:39.856556762 +0300
@@ -1,8 +1,8 @@
/*
- Montage Technology DS3000/TS2020 - DVBS/S2 Demodulator/Tuner driver
- Copyright (C) 2009 Konstantin Dimitrov <kosio.dimitrov@xxxxxxxxx>
+ Montage Technology DS3000 - DVBS/S2 Demodulator driver
+ Copyright (C) 2009-2012 Konstantin Dimitrov <kosio.dimitrov@xxxxxxxxx>
- 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 @@
#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[] = {
@@ -257,22 +256,14 @@
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;
}
@@ -349,38 +340,6 @@
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);
@@ -580,29 +539,8 @@
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);
+ /* temporary disabled until seperate ts2020 tuner driver is merged */
+ *signal_strength = 0xffff;
return 0;
}
@@ -960,133 +898,16 @@
int i;
fe_status_t status;
- u8 mlpf, mlpf_new, mlpf_max, mlpf_min, nlpf, div4;
- s32 offset_khz;
- u16 value, ndiv;
- u32 f3db;
+ s32 offset_khz, 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 (state->config->tuner_set_frequency)
+ state->config->tuner_set_frequency(fe, c->frequency);
/* ds3000 global reset */
ds3000_writereg(state, 0x07, 0x80);
@@ -1191,7 +1012,11 @@
/* start ds3000 build-in uC */
ds3000_writereg(state, 0xb2, 0x00);
- ds3000_set_carrier_offset(fe, offset_khz);
+ if (state->config->tuner_get_frequency) {
+ offset_khz = state->config->tuner_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);
@@ -1221,6 +1046,15 @@
return ds3000_read_status(fe, status);
}
+static int ds3000_get_frontend(struct dvb_frontend *fe)
+{
+ /* struct dtv_frontend_properties *c = &fe->dtv_property_cache; */
+
+ /* FIXME: for optimal performance get the SR from the silicon */
+
+ return 0;
+}
+
static enum dvbfe_algo ds3000_get_algo(struct dvb_frontend *fe)
{
dprintk("%s()\n", __func__);
@@ -1242,10 +1076,6 @@
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) {
@@ -1264,9 +1094,9 @@
}
static struct dvb_frontend_ops ds3000_ops = {
- .delsys = { SYS_DVBS, SYS_DVBS2},
+ .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 */
@@ -1285,6 +1115,7 @@
.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,
@@ -1295,6 +1126,7 @@
.diseqc_send_master_cmd = ds3000_send_diseqc_msg,
.diseqc_send_burst = ds3000_diseqc_send_burst,
.get_frontend_algo = ds3000_get_algo,
+ .get_frontend = ds3000_get_frontend,
.set_frontend = ds3000_set_frontend,
.tune = ds3000_tune,
@@ -1304,6 +1136,6 @@
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@xxxxxxxxx>");
MODULE_LICENSE("GPL");
--
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