diff options
author | Konstantin Dimitrov <kosio.dimitrov@gmail.com> | 2012-12-23 19:25:09 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-12-27 19:26:09 -0200 |
commit | c1965eae65f0db2eee574f72aab4e8b34ecf8f9c (patch) | |
tree | 7f036407f93d7be02657f8c369313ced9fd0e935 /drivers/media/dvb-frontends/ds3000.c | |
parent | 10a5c9148ee6841004cb7e6f4b09022eba94c7be (diff) | |
download | linux-c1965eae65f0db2eee574f72aab4e8b34ecf8f9c.tar.bz2 |
[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>
Diffstat (limited to 'drivers/media/dvb-frontends/ds3000.c')
-rw-r--r-- | drivers/media/dvb-frontends/ds3000.c | 242 |
1 files changed, 23 insertions, 219 deletions
diff --git a/drivers/media/dvb-frontends/ds3000.c b/drivers/media/dvb-frontends/ds3000.c index 60a529e3833f..cd84fbd78a5b 100644 --- a/drivers/media/dvb-frontends/ds3000.c +++ b/drivers/media/dvb-frontends/ds3000.c @@ -1,8 +1,8 @@ /* - 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); - ds3000_set_carrier_offset(fe, offset_khz); + 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}, + .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); |