Google Git
Sign in
android / kernel / common / d7ef64a9f9987b29e3d911369a9d40122d5be2dd / . / drivers / media / dvb / frontends / dib0090.c
blob: 52ff1a252a907186e4086a6bf9b0f606f215bfa7 [file] [log] [blame]
/*
* Linux-DVB Driver for DiBcom's DiB0090 base-band RF Tuner.
*
* Copyright (C) 2005-9 DiBcom (http://www.dibcom.fr/)
*
* 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.
*
*
* This code is more or less generated from another driver, please
* excuse some codingstyle oddities.
*
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include "dvb_frontend.h"
#include "dib0090.h"
#include "dibx000_common.h"
static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "turn on debugging (default: 0)");
#define dprintk(args...) do { \
if (debug) { \
printk(KERN_DEBUG "DiB0090: "); \
printk(args); \
printk("\n"); \
} \
} while (0)
#define CONFIG_SYS_DVBT
#define CONFIG_SYS_ISDBT
#define CONFIG_BAND_CBAND
#define CONFIG_BAND_VHF
#define CONFIG_BAND_UHF
#define CONFIG_DIB0090_USE_PWM_AGC
#define EN_LNA0 0x8000
#define EN_LNA1 0x4000
#define EN_LNA2 0x2000
#define EN_LNA3 0x1000
#define EN_MIX0 0x0800
#define EN_MIX1 0x0400
#define EN_MIX2 0x0200
#define EN_MIX3 0x0100
#define EN_IQADC 0x0040
#define EN_PLL 0x0020
#define EN_TX 0x0010
#define EN_BB 0x0008
#define EN_LO 0x0004
#define EN_BIAS 0x0001
#define EN_IQANA 0x0002
#define EN_DIGCLK 0x0080 /* not in the 0x24 reg, only in 0x1b */
#define EN_CRYSTAL 0x0002
#define EN_UHF 0x22E9
#define EN_VHF 0x44E9
#define EN_LBD 0x11E9
#define EN_SBD 0x44E9
#define EN_CAB 0x88E9
/* Calibration defines */
#define DC_CAL 0x1
#define WBD_CAL 0x2
#define TEMP_CAL 0x4
#define CAPTRIM_CAL 0x8
#define KROSUS_PLL_LOCKED 0x800
#define KROSUS 0x2
/* Use those defines to identify SOC version */
#define SOC 0x02
#define SOC_7090_P1G_11R1 0x82
#define SOC_7090_P1G_21R1 0x8a
#define SOC_8090_P1G_11R1 0x86
#define SOC_8090_P1G_21R1 0x8e
/* else use thos ones to check */
#define P1A_B 0x0
#define P1C 0x1
#define P1D_E_F 0x3
#define P1G 0x7
#define P1G_21R2 0xf
#define MP001 0x1 /* Single 9090/8096 */
#define MP005 0x4 /* Single Sband */
#define MP008 0x6 /* Dual diversity VHF-UHF-LBAND */
#define MP009 0x7 /* Dual diversity 29098 CBAND-UHF-LBAND-SBAND */
#define pgm_read_word(w) (*w)
struct dc_calibration;
struct dib0090_tuning {
u32 max_freq; /* for every frequency less than or equal to that field: this information is correct */
u8 switch_trim;
u8 lna_tune;
u16 lna_bias;
u16 v2i;
u16 mix;
u16 load;
u16 tuner_enable;
};
struct dib0090_pll {
u32 max_freq; /* for every frequency less than or equal to that field: this information is correct */
u8 vco_band;
u8 hfdiv_code;
u8 hfdiv;
u8 topresc;
};
struct dib0090_identity {
u8 version;
u8 product;
u8 p1g;
u8 in_soc;
};
struct dib0090_state {
struct i2c_adapter *i2c;
struct dvb_frontend *fe;
const struct dib0090_config *config;
u8 current_band;
enum frontend_tune_state tune_state;
u32 current_rf;
u16 wbd_offset;
s16 wbd_target; /* in dB */
s16 rf_gain_limit; /* take-over-point: where to split between bb and rf gain */
s16 current_gain; /* keeps the currently programmed gain */
u8 agc_step; /* new binary search */
u16 gain[2]; /* for channel monitoring */
const u16 *rf_ramp;
const u16 *bb_ramp;
/* for the software AGC ramps */
u16 bb_1_def;
u16 rf_lt_def;
u16 gain_reg[4];
/* for the captrim/dc-offset search */
s8 step;
s16 adc_diff;
s16 min_adc_diff;
s8 captrim;
s8 fcaptrim;
const struct dc_calibration *dc;
u16 bb6, bb7;
const struct dib0090_tuning *current_tune_table_index;
const struct dib0090_pll *current_pll_table_index;
u8 tuner_is_tuned;
u8 agc_freeze;
struct dib0090_identity identity;
u32 rf_request;
u8 current_standard;
u8 calibrate;
u32 rest;
u16 bias;
s16 temperature;
u8 wbd_calibration_gain;
const struct dib0090_wbd_slope *current_wbd_table;
u16 wbdmux;
};
struct dib0090_fw_state {
struct i2c_adapter *i2c;
struct dvb_frontend *fe;
struct dib0090_identity identity;
const struct dib0090_config *config;
};
static u16 dib0090_read_reg(struct dib0090_state *state, u8 reg)
{
u8 b[2];
struct i2c_msg msg[2] = {
{.addr = state->config->i2c_address, .flags = 0, .buf = &reg, .len = 1},
{.addr = state->config->i2c_address, .flags = I2C_M_RD, .buf = b, .len = 2},
};
if (i2c_transfer(state->i2c, msg, 2) != 2) {
printk(KERN_WARNING "DiB0090 I2C read failed\n");
return 0;
}
return (b[0] << 8) | b[1];
}
static int dib0090_write_reg(struct dib0090_state *state, u32 reg, u16 val)
{
u8 b[3] = { reg & 0xff, val >> 8, val & 0xff };
struct i2c_msg msg = {.addr = state->config->i2c_address, .flags = 0, .buf = b, .len = 3 };
if (i2c_transfer(state->i2c, &msg, 1) != 1) {
printk(KERN_WARNING "DiB0090 I2C write failed\n");
return -EREMOTEIO;
}
return 0;
}
static u16 dib0090_fw_read_reg(struct dib0090_fw_state *state, u8 reg)
{
u8 b[2];
struct i2c_msg msg = {.addr = reg, .flags = I2C_M_RD, .buf = b, .len = 2 };
if (i2c_transfer(state->i2c, &msg, 1) != 1) {
printk(KERN_WARNING "DiB0090 I2C read failed\n");
return 0;
}
return (b[0] << 8) | b[1];
}
static int dib0090_fw_write_reg(struct dib0090_fw_state *state, u8 reg, u16 val)
{
u8 b[2] = { val >> 8, val & 0xff };
struct i2c_msg msg = {.addr = reg, .flags = 0, .buf = b, .len = 2 };
if (i2c_transfer(state->i2c, &msg, 1) != 1) {
printk(KERN_WARNING "DiB0090 I2C write failed\n");
return -EREMOTEIO;
}
return 0;
}
#define HARD_RESET(state) do { if (cfg->reset) { if (cfg->sleep) cfg->sleep(fe, 0); msleep(10); cfg->reset(fe, 1); msleep(10); cfg->reset(fe, 0); msleep(10); } } while (0)
#define ADC_TARGET -220
#define GAIN_ALPHA 5
#define WBD_ALPHA 6
#define LPF 100
static void dib0090_write_regs(struct dib0090_state *state, u8 r, const u16 * b, u8 c)
{
do {
dib0090_write_reg(state, r++, *b++);
} while (--c);
}
static int dib0090_identify(struct dvb_frontend *fe)
{
struct dib0090_state *state = fe->tuner_priv;
u16 v;
struct dib0090_identity *identity = &state->identity;
v = dib0090_read_reg(state, 0x1a);
identity->p1g = 0;
identity->in_soc = 0;
dprintk("Tuner identification (Version = 0x%04x)", v);
/* without PLL lock info */
v &= ~KROSUS_PLL_LOCKED;
identity->version = v & 0xff;
identity->product = (v >> 8) & 0xf;
if (identity->product != KROSUS)
goto identification_error;
if ((identity->version & 0x3) == SOC) {
identity->in_soc = 1;
switch (identity->version) {
case SOC_8090_P1G_11R1:
dprintk("SOC 8090 P1-G11R1 Has been detected");
identity->p1g = 1;
break;
case SOC_8090_P1G_21R1:
dprintk("SOC 8090 P1-G21R1 Has been detected");
identity->p1g = 1;
break;
case SOC_7090_P1G_11R1:
dprintk("SOC 7090 P1-G11R1 Has been detected");
identity->p1g = 1;
break;
case SOC_7090_P1G_21R1:
dprintk("SOC 7090 P1-G21R1 Has been detected");
identity->p1g = 1;
break;
default:
goto identification_error;
}
} else {
switch ((identity->version >> 5) & 0x7) {
case MP001:
dprintk("MP001 : 9090/8096");
break;
case MP005:
dprintk("MP005 : Single Sband");
break;
case MP008:
dprintk("MP008 : diversity VHF-UHF-LBAND");
break;
case MP009:
dprintk("MP009 : diversity 29098 CBAND-UHF-LBAND-SBAND");
break;
default:
goto identification_error;
}
switch (identity->version & 0x1f) {
case P1G_21R2:
dprintk("P1G_21R2 detected");
identity->p1g = 1;
break;
case P1G:
dprintk("P1G detected");
identity->p1g = 1;
break;
case P1D_E_F:
dprintk("P1D/E/F detected");
break;
case P1C:
dprintk("P1C detected");
break;
case P1A_B:
dprintk("P1-A/B detected: driver is deactivated - not available");
goto identification_error;
break;
default:
goto identification_error;
}
}
return 0;
identification_error:
return -EIO;
}
static int dib0090_fw_identify(struct dvb_frontend *fe)
{
struct dib0090_fw_state *state = fe->tuner_priv;
struct dib0090_identity *identity = &state->identity;
u16 v = dib0090_fw_read_reg(state, 0x1a);
identity->p1g = 0;
identity->in_soc = 0;
dprintk("FE: Tuner identification (Version = 0x%04x)", v);
/* without PLL lock info */
v &= ~KROSUS_PLL_LOCKED;
identity->version = v & 0xff;
identity->product = (v >> 8) & 0xf;
if (identity->product != KROSUS)
goto identification_error;
if ((identity->version & 0x3) == SOC) {
identity->in_soc = 1;
switch (identity->version) {
case SOC_8090_P1G_11R1:
dprintk("SOC 8090 P1-G11R1 Has been detected");
identity->p1g = 1;
break;
case SOC_8090_P1G_21R1:
dprintk("SOC 8090 P1-G21R1 Has been detected");
identity->p1g = 1;
break;
case SOC_7090_P1G_11R1:
dprintk("SOC 7090 P1-G11R1 Has been detected");
identity->p1g = 1;
break;
case SOC_7090_P1G_21R1:
dprintk("SOC 7090 P1-G21R1 Has been detected");
identity->p1g = 1;
break;
default:
goto identification_error;
}
} else {
switch ((identity->version >> 5) & 0x7) {
case MP001:
dprintk("MP001 : 9090/8096");
break;
case MP005:
dprintk("MP005 : Single Sband");
break;
case MP008:
dprintk("MP008 : diversity VHF-UHF-LBAND");
break;
case MP009:
dprintk("MP009 : diversity 29098 CBAND-UHF-LBAND-SBAND");
break;
default:
goto identification_error;
}
switch (identity->version & 0x1f) {
case P1G_21R2:
dprintk("P1G_21R2 detected");
identity->p1g = 1;
break;
case P1G:
dprintk("P1G detected");
identity->p1g = 1;
break;
case P1D_E_F:
dprintk("P1D/E/F detected");
break;
case P1C:
dprintk("P1C detected");
break;
case P1A_B:
dprintk("P1-A/B detected: driver is deactivated - not available");
goto identification_error;
break;
default:
goto identification_error;
}
}
return 0;
identification_error:
return -EIO;;
}
static void dib0090_reset_digital(struct dvb_frontend *fe, const struct dib0090_config *cfg)
{
struct dib0090_state *state = fe->tuner_priv;
u16 PllCfg, i, v;
HARD_RESET(state);
dib0090_write_reg(state, 0x24, EN_PLL | EN_CRYSTAL);
dib0090_write_reg(state, 0x1b, EN_DIGCLK | EN_PLL | EN_CRYSTAL); /* PLL, DIG_CLK and CRYSTAL remain */
if (!cfg->in_soc) {
/* adcClkOutRatio=8->7, release reset */
dib0090_write_reg(state, 0x20, ((cfg->io.adc_clock_ratio - 1) << 11) | (0 << 10) | (1 << 9) | (1 << 8) | (0 << 4) | 0);
if (cfg->clkoutdrive != 0)
dib0090_write_reg(state, 0x23, (0 << 15) | ((!cfg->analog_output) << 14) | (2 << 10) | (1 << 9) | (0 << 8)
| (cfg->clkoutdrive << 5) | (cfg->clkouttobamse << 4) | (0 << 2) | (0));
else
dib0090_write_reg(state, 0x23, (0 << 15) | ((!cfg->analog_output) << 14) | (2 << 10) | (1 << 9) | (0 << 8)
| (7 << 5) | (cfg->clkouttobamse << 4) | (0 << 2) | (0));
}
/* Read Pll current config * */
PllCfg = dib0090_read_reg(state, 0x21);
/** Reconfigure PLL if current setting is different from default setting **/
if ((PllCfg & 0x1FFF) != ((cfg->io.pll_range << 12) | (cfg->io.pll_loopdiv << 6) | (cfg->io.pll_prediv)) && (!cfg->in_soc)
&& !cfg->io.pll_bypass) {
/* Set Bypass mode */
PllCfg |= (1 << 15);
dib0090_write_reg(state, 0x21, PllCfg);
/* Set Reset Pll */
PllCfg &= ~(1 << 13);
dib0090_write_reg(state, 0x21, PllCfg);
/*** Set new Pll configuration in bypass and reset state ***/
PllCfg = (1 << 15) | (0 << 13) | (cfg->io.pll_range << 12) | (cfg->io.pll_loopdiv << 6) | (cfg->io.pll_prediv);
dib0090_write_reg(state, 0x21, PllCfg);
/* Remove Reset Pll */
PllCfg |= (1 << 13);
dib0090_write_reg(state, 0x21, PllCfg);
/*** Wait for PLL lock ***/
i = 100;
do {
v = !!(dib0090_read_reg(state, 0x1a) & 0x800);
if (v)
break;
} while (--i);
if (i == 0) {
dprintk("Pll: Unable to lock Pll");
return;
}
/* Finally Remove Bypass mode */
PllCfg &= ~(1 << 15);
dib0090_write_reg(state, 0x21, PllCfg);
}
if (cfg->io.pll_bypass) {
PllCfg |= (cfg->io.pll_bypass << 15);
dib0090_write_reg(state, 0x21, PllCfg);
}
}
static int dib0090_fw_reset_digital(struct dvb_frontend *fe, const struct dib0090_config *cfg)
{
struct dib0090_fw_state *state = fe->tuner_priv;
u16 PllCfg;
u16 v;
int i;
dprintk("fw reset digital");
HARD_RESET(state);
dib0090_fw_write_reg(state, 0x24, EN_PLL | EN_CRYSTAL);
dib0090_fw_write_reg(state, 0x1b, EN_DIGCLK | EN_PLL | EN_CRYSTAL); /* PLL, DIG_CLK and CRYSTAL remain */
dib0090_fw_write_reg(state, 0x20,
((cfg->io.adc_clock_ratio - 1) << 11) | (0 << 10) | (1 << 9) | (1 << 8) | (cfg->data_tx_drv << 4) | cfg->ls_cfg_pad_drv);
v = (0 << 15) | ((!cfg->analog_output) << 14) | (1 << 9) | (0 << 8) | (cfg->clkouttobamse << 4) | (0 << 2) | (0);
if (cfg->clkoutdrive != 0)
v |= cfg->clkoutdrive << 5;
else
v |= 7 << 5;
v |= 2 << 10;
dib0090_fw_write_reg(state, 0x23, v);
/* Read Pll current config * */
PllCfg = dib0090_fw_read_reg(state, 0x21);
/** Reconfigure PLL if current setting is different from default setting **/
if ((PllCfg & 0x1FFF) != ((cfg->io.pll_range << 12) | (cfg->io.pll_loopdiv << 6) | (cfg->io.pll_prediv)) && !cfg->io.pll_bypass) {
/* Set Bypass mode */
PllCfg |= (1 << 15);
dib0090_fw_write_reg(state, 0x21, PllCfg);
/* Set Reset Pll */
PllCfg &= ~(1 << 13);
dib0090_fw_write_reg(state, 0x21, PllCfg);
/*** Set new Pll configuration in bypass and reset state ***/
PllCfg = (1 << 15) | (0 << 13) | (cfg->io.pll_range << 12) | (cfg->io.pll_loopdiv << 6) | (cfg->io.pll_prediv);
dib0090_fw_write_reg(state, 0x21, PllCfg);
/* Remove Reset Pll */
PllCfg |= (1 << 13);
dib0090_fw_write_reg(state, 0x21, PllCfg);
/*** Wait for PLL lock ***/
i = 100;
do {
v = !!(dib0090_fw_read_reg(state, 0x1a) & 0x800);
if (v)
break;
} while (--i);
if (i == 0) {
dprintk("Pll: Unable to lock Pll");
return -EIO;
}
/* Finally Remove Bypass mode */
PllCfg &= ~(1 << 15);
dib0090_fw_write_reg(state, 0x21, PllCfg);
}
if (cfg->io.pll_bypass) {
PllCfg |= (cfg->io.pll_bypass << 15);
dib0090_fw_write_reg(state, 0x21, PllCfg);
}
return dib0090_fw_identify(fe);
}
static int dib0090_wakeup(struct dvb_frontend *fe)
{
struct dib0090_state *state = fe->tuner_priv;
if (state->config->sleep)
state->config->sleep(fe, 0);
/* enable dataTX in case we have been restarted in the wrong moment */
dib0090_write_reg(state, 0x23, dib0090_read_reg(state, 0x23) | (1 << 14));
return 0;
}
static int dib0090_sleep(struct dvb_frontend *fe)
{
struct dib0090_state *state = fe->tuner_priv;
if (state->config->sleep)
state->config->sleep(fe, 1);
return 0;
}
void dib0090_dcc_freq(struct dvb_frontend *fe, u8 fast)
{
struct dib0090_state *state = fe->tuner_priv;
if (fast)
dib0090_write_reg(state, 0x04, 0);
else
dib0090_write_reg(state, 0x04, 1);
}
EXPORT_SYMBOL(dib0090_dcc_freq);
static const u16 bb_ramp_pwm_normal_socs[] = {
550, /* max BB gain in 10th of dB */
(1 << 9) | 8, /* ramp_slope = 1dB of gain -> clock_ticks_per_db = clk_khz / ramp_slope -> BB_RAMP2 */
440,
(4 << 9) | 0, /* BB_RAMP3 = 26dB */
(0 << 9) | 208, /* BB_RAMP4 */
(4 << 9) | 208, /* BB_RAMP5 = 29dB */
(0 << 9) | 440, /* BB_RAMP6 */
};
static const u16 rf_ramp_pwm_cband_7090[] = {
280, /* max RF gain in 10th of dB */
18, /* ramp_slope = 1dB of gain -> clock_ticks_per_db = clk_khz / ramp_slope -> RF_RAMP2 */
504, /* ramp_max = maximum X used on the ramp */
(29 << 10) | 364, /* RF_RAMP5, LNA 1 = 8dB */
(0 << 10) | 504, /* RF_RAMP6, LNA 1 */
(60 << 10) | 228, /* RF_RAMP7, LNA 2 = 7.7dB */
(0 << 10) | 364, /* RF_RAMP8, LNA 2 */
(34 << 10) | 109, /* GAIN_4_1, LNA 3 = 6.8dB */
(0 << 10) | 228, /* GAIN_4_2, LNA 3 */
(37 << 10) | 0, /* RF_RAMP3, LNA 4 = 6.2dB */
(0 << 10) | 109, /* RF_RAMP4, LNA 4 */
};
static const u16 rf_ramp_pwm_cband_8090[] = {
345, /* max RF gain in 10th of dB */
29, /* ramp_slope = 1dB of gain -> clock_ticks_per_db = clk_khz / ramp_slope -> RF_RAMP2 */
1000, /* ramp_max = maximum X used on the ramp */
(35 << 10) | 772, /* RF_RAMP3, LNA 1 = 8dB */
(0 << 10) | 1000, /* RF_RAMP4, LNA 1 */
(58 << 10) | 496, /* RF_RAMP5, LNA 2 = 9.5dB */
(0 << 10) | 772, /* RF_RAMP6, LNA 2 */
(27 << 10) | 200, /* RF_RAMP7, LNA 3 = 10.5dB */
(0 << 10) | 496, /* RF_RAMP8, LNA 3 */
(40 << 10) | 0, /* GAIN_4_1, LNA 4 = 7dB */
(0 << 10) | 200, /* GAIN_4_2, LNA 4 */
};
static const u16 rf_ramp_pwm_uhf_7090[] = {
407, /* max RF gain in 10th of dB */
13, /* ramp_slope = 1dB of gain -> clock_ticks_per_db = clk_khz / ramp_slope -> RF_RAMP2 */
529, /* ramp_max = maximum X used on the ramp */
(23 << 10) | 0, /* RF_RAMP3, LNA 1 = 14.7dB */
(0 << 10) | 176, /* RF_RAMP4, LNA 1 */
(63 << 10) | 400, /* RF_RAMP5, LNA 2 = 8dB */
(0 << 10) | 529, /* RF_RAMP6, LNA 2 */
(48 << 10) | 316, /* RF_RAMP7, LNA 3 = 6.8dB */
(0 << 10) | 400, /* RF_RAMP8, LNA 3 */
(29 << 10) | 176, /* GAIN_4_1, LNA 4 = 11.5dB */
(0 << 10) | 316, /* GAIN_4_2, LNA 4 */
};
static const u16 rf_ramp_pwm_uhf_8090[] = {
388, /* max RF gain in 10th of dB */
26, /* ramp_slope = 1dB of gain -> clock_ticks_per_db = clk_khz / ramp_slope -> RF_RAMP2 */
1008, /* ramp_max = maximum X used on the ramp */
(11 << 10) | 0, /* RF_RAMP3, LNA 1 = 14.7dB */
(0 << 10) | 369, /* RF_RAMP4, LNA 1 */
(41 << 10) | 809, /* RF_RAMP5, LNA 2 = 8dB */
(0 << 10) | 1008, /* RF_RAMP6, LNA 2 */
(27 << 10) | 659, /* RF_RAMP7, LNA 3 = 6dB */
(0 << 10) | 809, /* RF_RAMP8, LNA 3 */
(14 << 10) | 369, /* GAIN_4_1, LNA 4 = 11.5dB */
(0 << 10) | 659, /* GAIN_4_2, LNA 4 */
};
static const u16 rf_ramp_pwm_cband[] = {
0, /* max RF gain in 10th of dB */
0, /* ramp_slope = 1dB of gain -> clock_ticks_per_db = clk_khz / ramp_slope -> 0x2b */
0, /* ramp_max = maximum X used on the ramp */
(0 << 10) | 0, /* 0x2c, LNA 1 = 0dB */
(0 << 10) | 0, /* 0x2d, LNA 1 */
(0 << 10) | 0, /* 0x2e, LNA 2 = 0dB */
(0 << 10) | 0, /* 0x2f, LNA 2 */
(0 << 10) | 0, /* 0x30, LNA 3 = 0dB */
(0 << 10) | 0, /* 0x31, LNA 3 */
(0 << 10) | 0, /* GAIN_4_1, LNA 4 = 0dB */
(0 << 10) | 0, /* GAIN_4_2, LNA 4 */
};
static const u16 rf_ramp_vhf[] = {
412, /* max RF gain in 10th of dB */
132, 307, 127, /* LNA1, 13.2dB */
105, 412, 255, /* LNA2, 10.5dB */
50, 50, 127, /* LNA3, 5dB */
125, 175, 127, /* LNA4, 12.5dB */
0, 0, 127, /* CBAND, 0dB */
};
static const u16 rf_ramp_uhf[] = {
412, /* max RF gain in 10th of dB */
132, 307, 127, /* LNA1 : total gain = 13.2dB, point on the ramp where this amp is full gain, value to write to get full gain */
105, 412, 255, /* LNA2 : 10.5 dB */
50, 50, 127, /* LNA3 : 5.0 dB */
125, 175, 127, /* LNA4 : 12.5 dB */
0, 0, 127, /* CBAND : 0.0 dB */
};
static const u16 rf_ramp_cband_broadmatching[] = /* for p1G only */
{
314, /* Calibrated at 200MHz order has been changed g4-g3-g2-g1 */
84, 314, 127, /* LNA1 */
80, 230, 255, /* LNA2 */
80, 150, 127, /* LNA3 It was measured 12dB, do not lock if 120 */
70, 70, 127, /* LNA4 */
0, 0, 127, /* CBAND */
};
static const u16 rf_ramp_cband[] = {
332, /* max RF gain in 10th of dB */
132, 252, 127, /* LNA1, dB */
80, 332, 255, /* LNA2, dB */
0, 0, 127, /* LNA3, dB */
0, 0, 127, /* LNA4, dB */
120, 120, 127, /* LT1 CBAND */
};
static const u16 rf_ramp_pwm_vhf[] = {
404, /* max RF gain in 10th of dB */
25, /* ramp_slope = 1dB of gain -> clock_ticks_per_db = clk_khz / ramp_slope -> 0x2b */
1011, /* ramp_max = maximum X used on the ramp */
(6 << 10) | 417, /* 0x2c, LNA 1 = 13.2dB */
(0 << 10) | 756, /* 0x2d, LNA 1 */
(16 << 10) | 756, /* 0x2e, LNA 2 = 10.5dB */
(0 << 10) | 1011, /* 0x2f, LNA 2 */
(16 << 10) | 290, /* 0x30, LNA 3 = 5dB */
(0 << 10) | 417, /* 0x31, LNA 3 */
(7 << 10) | 0, /* GAIN_4_1, LNA 4 = 12.5dB */
(0 << 10) | 290, /* GAIN_4_2, LNA 4 */
};
static const u16 rf_ramp_pwm_uhf[] = {
404, /* max RF gain in 10th of dB */
25, /* ramp_slope = 1dB of gain -> clock_ticks_per_db = clk_khz / ramp_slope -> 0x2b */
1011, /* ramp_max = maximum X used on the ramp */
(6 << 10) | 417, /* 0x2c, LNA 1 = 13.2dB */
(0 << 10) | 756, /* 0x2d, LNA 1 */
(16 << 10) | 756, /* 0x2e, LNA 2 = 10.5dB */
(0 << 10) | 1011, /* 0x2f, LNA 2 */
(16 << 10) | 0, /* 0x30, LNA 3 = 5dB */
(0 << 10) | 127, /* 0x31, LNA 3 */
(7 << 10) | 127, /* GAIN_4_1, LNA 4 = 12.5dB */
(0 << 10) | 417, /* GAIN_4_2, LNA 4 */
};
static const u16 bb_ramp_boost[] = {
550, /* max BB gain in 10th of dB */
260, 260, 26, /* BB1, 26dB */
290, 550, 29, /* BB2, 29dB */
};
static const u16 bb_ramp_pwm_normal[] = {
500, /* max RF gain in 10th of dB */
8, /* ramp_slope = 1dB of gain -> clock_ticks_per_db = clk_khz / ramp_slope -> 0x34 */
400,
(2 << 9) | 0, /* 0x35 = 21dB */
(0 << 9) | 168, /* 0x36 */
(2 << 9) | 168, /* 0x37 = 29dB */
(0 << 9) | 400, /* 0x38 */
};
struct slope {
s16 range;
s16 slope;
};
static u16 slopes_to_scale(const struct slope *slopes, u8 num, s16 val)
{
u8 i;
u16 rest;
u16 ret = 0;
for (i = 0; i < num; i++) {
if (val > slopes[i].range)
rest = slopes[i].range;
else
rest = val;
ret += (rest * slopes[i].slope) / slopes[i].range;
val -= rest;
}
return ret;
}
static const struct slope dib0090_wbd_slopes[3] = {
{66, 120}, /* -64,-52: offset - 65 */
{600, 170}, /* -52,-35: 65 - 665 */
{170, 250}, /* -45,-10: 665 - 835 */
};
static s16 dib0090_wbd_to_db(struct dib0090_state *state, u16 wbd)
{
wbd &= 0x3ff;
if (wbd < state->wbd_offset)
wbd = 0;
else
wbd -= state->wbd_offset;
/* -64dB is the floor */
return -640 + (s16) slopes_to_scale(dib0090_wbd_slopes, ARRAY_SIZE(dib0090_wbd_slopes), wbd);
}
static void dib0090_wbd_target(struct dib0090_state *state, u32 rf)
{
u16 offset = 250;
/* TODO : DAB digital N+/-1 interferer perfs : offset = 10 */
if (state->current_band == BAND_VHF)
offset = 650;
#ifndef FIRMWARE_FIREFLY
if (state->current_band == BAND_VHF)
offset = state->config->wbd_vhf_offset;
if (state->current_band == BAND_CBAND)
offset = state->config->wbd_cband_offset;
#endif
state->wbd_target = dib0090_wbd_to_db(state, state->wbd_offset + offset);
dprintk("wbd-target: %d dB", (u32) state->wbd_target);
}
static const int gain_reg_addr[4] = {
0x08, 0x0a, 0x0f, 0x01
};
static void dib0090_gain_apply(struct dib0090_state *state, s16 gain_delta, s16 top_delta, u8 force)
{
u16 rf, bb, ref;
u16 i, v, gain_reg[4] = { 0 }, gain;
const u16 *g;
if (top_delta < -511)
top_delta = -511;
if (top_delta > 511)
top_delta = 511;
if (force) {
top_delta *= (1 << WBD_ALPHA);
gain_delta *= (1 << GAIN_ALPHA);
}
if (top_delta >= ((s16) (state->rf_ramp[0] << WBD_ALPHA) - state->rf_gain_limit)) /* overflow */
state->rf_gain_limit = state->rf_ramp[0] << WBD_ALPHA;
else
state->rf_gain_limit += top_delta;
if (state->rf_gain_limit < 0) /*underflow */
state->rf_gain_limit = 0;
/* use gain as a temporary variable and correct current_gain */
gain = ((state->rf_gain_limit >> WBD_ALPHA) + state->bb_ramp[0]) << GAIN_ALPHA;
if (gain_delta >= ((s16) gain - state->current_gain)) /* overflow */
state->current_gain = gain;
else
state->current_gain += gain_delta;
/* cannot be less than 0 (only if gain_delta is less than 0 we can have current_gain < 0) */
if (state->current_gain < 0)
state->current_gain = 0;
/* now split total gain to rf and bb gain */
gain = state->current_gain >> GAIN_ALPHA;
/* requested gain is bigger than rf gain limit - ACI/WBD adjustment */
if (gain > (state->rf_gain_limit >> WBD_ALPHA)) {
rf = state->rf_gain_limit >> WBD_ALPHA;
bb = gain - rf;
if (bb > state->bb_ramp[0])
bb = state->bb_ramp[0];
} else { /* high signal level -> all gains put on RF */
rf = gain;
bb = 0;
}
state->gain[0] = rf;
state->gain[1] = bb;
/* software ramp */
/* Start with RF gains */
g = state->rf_ramp + 1; /* point on RF LNA1 max gain */
ref = rf;
for (i = 0; i < 7; i++) { /* Go over all amplifiers => 5RF amps + 2 BB amps = 7 amps */
if (g[0] == 0 || ref < (g[1] - g[0])) /* if total gain of the current amp is null or this amp is not concerned because it starts to work from an higher gain value */
v = 0; /* force the gain to write for the current amp to be null */
else if (ref >= g[1]) /* Gain to set is higher than the high working point of this amp */
v = g[2]; /* force this amp to be full gain */
else /* compute the value to set to this amp because we are somewhere in his range */
v = ((ref - (g[1] - g[0])) * g[2]) / g[0];
if (i == 0) /* LNA 1 reg mapping */
gain_reg[0] = v;
else if (i == 1) /* LNA 2 reg mapping */
gain_reg[0] |= v << 7;
else if (i == 2) /* LNA 3 reg mapping */
gain_reg[1] = v;
else if (i == 3) /* LNA 4 reg mapping */
gain_reg[1] |= v << 7;
else if (i == 4) /* CBAND LNA reg mapping */
gain_reg[2] = v | state->rf_lt_def;
else if (i == 5) /* BB gain 1 reg mapping */
gain_reg[3] = v << 3;
else if (i == 6) /* BB gain 2 reg mapping */
gain_reg[3] |= v << 8;
g += 3; /* go to next gain bloc */
/* When RF is finished, start with BB */
if (i == 4) {
g = state->bb_ramp + 1; /* point on BB gain 1 max gain */
ref = bb;
}
}
gain_reg[3] |= state->bb_1_def;
gain_reg[3] |= ((bb % 10) * 100) / 125;
#ifdef DEBUG_AGC
dprintk("GA CALC: DB: %3d(rf) + %3d(bb) = %3d gain_reg[0]=%04x gain_reg[1]=%04x gain_reg[2]=%04x gain_reg[0]=%04x", rf, bb, rf + bb,
gain_reg[0], gain_reg[1], gain_reg[2], gain_reg[3]);
#endif
/* Write the amplifier regs */
for (i = 0; i < 4; i++) {
v = gain_reg[i];
if (force || state->gain_reg[i] != v) {
state->gain_reg[i] = v;
dib0090_write_reg(state, gain_reg_addr[i], v);
}
}
}
static void dib0090_set_boost(struct dib0090_state *state, int onoff)
{
state->bb_1_def &= 0xdfff;
state->bb_1_def |= onoff << 13;
}
static void dib0090_set_rframp(struct dib0090_state *state, const u16 * cfg)
{
state->rf_ramp = cfg;
}
static void dib0090_set_rframp_pwm(struct dib0090_state *state, const u16 * cfg)
{
state->rf_ramp = cfg;
dib0090_write_reg(state, 0x2a, 0xffff);
dprintk("total RF gain: %ddB, step: %d", (u32) cfg[0], dib0090_read_reg(state, 0x2a));
dib0090_write_regs(state, 0x2c, cfg + 3, 6);
dib0090_write_regs(state, 0x3e, cfg + 9, 2);
}
static void dib0090_set_bbramp(struct dib0090_state *state, const u16 * cfg)
{
state->bb_ramp = cfg;
dib0090_set_boost(state, cfg[0] > 500); /* we want the boost if the gain is higher that 50dB */
}
static void dib0090_set_bbramp_pwm(struct dib0090_state *state, const u16 * cfg)
{
state->bb_ramp = cfg;
dib0090_set_boost(state, cfg[0] > 500); /* we want the boost if the gain is higher that 50dB */
dib0090_write_reg(state, 0x33, 0xffff);
dprintk("total BB gain: %ddB, step: %d", (u32) cfg[0], dib0090_read_reg(state, 0x33));
dib0090_write_regs(state, 0x35, cfg + 3, 4);
}
void dib0090_pwm_gain_reset(struct dvb_frontend *fe)
{
struct dib0090_state *state = fe->tuner_priv;
/* reset the AGC */
if (state->config->use_pwm_agc) {
#ifdef CONFIG_BAND_SBAND
if (state->current_band == BAND_SBAND) {
dib0090_set_rframp_pwm(state, rf_ramp_pwm_sband);
dib0090_set_bbramp_pwm(state, bb_ramp_pwm_boost);
} else
#endif
#ifdef CONFIG_BAND_CBAND
if (state->current_band == BAND_CBAND) {
if (state->identity.in_soc) {
dib0090_set_bbramp_pwm(state, bb_ramp_pwm_normal_socs);
if (state->identity.version == SOC_8090_P1G_11R1 || state->identity.version == SOC_8090_P1G_21R1)
dib0090_set_rframp_pwm(state, rf_ramp_pwm_cband_8090);
else if (state->identity.version == SOC_7090_P1G_11R1 || state->identity.version == SOC_7090_P1G_21R1)
dib0090_set_rframp_pwm(state, rf_ramp_pwm_cband_7090);
} else {
dib0090_set_rframp_pwm(state, rf_ramp_pwm_cband);
dib0090_set_bbramp_pwm(state, bb_ramp_pwm_normal);
}
} else
#endif
#ifdef CONFIG_BAND_VHF
if (state->current_band == BAND_VHF) {
if (state->identity.in_soc) {
dib0090_set_bbramp_pwm(state, bb_ramp_pwm_normal_socs);
} else {
dib0090_set_rframp_pwm(state, rf_ramp_pwm_vhf);
dib0090_set_bbramp_pwm(state, bb_ramp_pwm_normal);
}
} else
#endif
{
if (state->identity.in_soc) {
if (state->identity.version == SOC_8090_P1G_11R1 || state->identity.version == SOC_8090_P1G_21R1)
dib0090_set_rframp_pwm(state, rf_ramp_pwm_uhf_8090);
else if (state->identity.version == SOC_7090_P1G_11R1 || state->identity.version == SOC_7090_P1G_21R1)
dib0090_set_rframp_pwm(state, rf_ramp_pwm_uhf_7090);
dib0090_set_bbramp_pwm(state, bb_ramp_pwm_normal_socs);
} else {
dib0090_set_rframp_pwm(state, rf_ramp_pwm_uhf);
dib0090_set_bbramp_pwm(state, bb_ramp_pwm_normal);
}
}
if (state->rf_ramp[0] != 0)
dib0090_write_reg(state, 0x32, (3 << 11));
else
dib0090_write_reg(state, 0x32, (0 << 11));
dib0090_write_reg(state, 0x04, 0x01);
dib0090_write_reg(state, 0x39, (1 << 10));
}
}
EXPORT_SYMBOL(dib0090_pwm_gain_reset);
static u32 dib0090_get_slow_adc_val(struct dib0090_state *state)
{
u16 adc_val = dib0090_read_reg(state, 0x1d);
if (state->identity.in_soc)
adc_val >>= 2;
return adc_val;
}
int dib0090_gain_control(struct dvb_frontend *fe)
{
struct dib0090_state *state = fe->tuner_priv;
enum frontend_tune_state *tune_state = &state->tune_state;
int ret = 10;
u16 wbd_val = 0;
u8 apply_gain_immediatly = 1;
s16 wbd_error = 0, adc_error = 0;
if (*tune_state == CT_AGC_START) {
state->agc_freeze = 0;
dib0090_write_reg(state, 0x04, 0x0);
#ifdef CONFIG_BAND_SBAND
if (state->current_band == BAND_SBAND) {
dib0090_set_rframp(state, rf_ramp_sband);
dib0090_set_bbramp(state, bb_ramp_boost);
} else
#endif
#ifdef CONFIG_BAND_VHF
if (state->current_band == BAND_VHF && !state->identity.p1g) {
dib0090_set_rframp(state, rf_ramp_vhf);
dib0090_set_bbramp(state, bb_ramp_boost);
} else
#endif
#ifdef CONFIG_BAND_CBAND
if (state->current_band == BAND_CBAND && !state->identity.p1g) {
dib0090_set_rframp(state, rf_ramp_cband);
dib0090_set_bbramp(state, bb_ramp_boost);
} else
#endif
if ((state->current_band == BAND_CBAND || state->current_band == BAND_VHF) && state->identity.p1g) {
dib0090_set_rframp(state, rf_ramp_cband_broadmatching);
dib0090_set_bbramp(state, bb_ramp_boost);
} else {
dib0090_set_rframp(state, rf_ramp_uhf);
dib0090_set_bbramp(state, bb_ramp_boost);
}
dib0090_write_reg(state, 0x32, 0);
dib0090_write_reg(state, 0x39, 0);
dib0090_wbd_target(state, state->current_rf);
state->rf_gain_limit = state->rf_ramp[0] << WBD_ALPHA;
state->current_gain = ((state->rf_ramp[0] + state->bb_ramp[0]) / 2) << GAIN_ALPHA;
*tune_state = CT_AGC_STEP_0;
} else if (!state->agc_freeze) {
s16 wbd = 0, i, cnt;
int adc;
wbd_val = dib0090_get_slow_adc_val(state);
if (*tune_state == CT_AGC_STEP_0)
cnt = 5;
else
cnt = 1;
for (i = 0; i < cnt; i++) {
wbd_val = dib0090_get_slow_adc_val(state);
wbd += dib0090_wbd_to_db(state, wbd_val);
}
wbd /= cnt;
wbd_error = state->wbd_target - wbd;
if (*tune_state == CT_AGC_STEP_0) {
if (wbd_error < 0 && state->rf_gain_limit > 0 && !state->identity.p1g) {
#ifdef CONFIG_BAND_CBAND
/* in case of CBAND tune reduce first the lt_gain2 before adjusting the RF gain */
u8 ltg2 = (state->rf_lt_def >> 10) & 0x7;
if (state->current_band == BAND_CBAND && ltg2) {
ltg2 >>= 1;
state->rf_lt_def &= ltg2 << 10; /* reduce in 3 steps from 7 to 0 */
}
#endif
} else {
state->agc_step = 0;
*tune_state = CT_AGC_STEP_1;
}
} else {
/* calc the adc power */
adc = state->config->get_adc_power(fe);
adc = (adc * ((s32) 355774) + (((s32) 1) << 20)) >> 21; /* included in [0:-700] */
adc_error = (s16) (((s32) ADC_TARGET) - adc);
#ifdef CONFIG_STANDARD_DAB
if (state->fe->dtv_property_cache.delivery_system == STANDARD_DAB)
adc_error -= 10;
#endif
#ifdef CONFIG_STANDARD_DVBT
if (state->fe->dtv_property_cache.delivery_system == STANDARD_DVBT &&
(state->fe->dtv_property_cache.modulation == QAM_64 || state->fe->dtv_property_cache.modulation == QAM_16))
adc_error += 60;
#endif
#ifdef CONFIG_SYS_ISDBT
if ((state->fe->dtv_property_cache.delivery_system == SYS_ISDBT) && (((state->fe->dtv_property_cache.layer[0].segment_count >
0)
&&
((state->fe->dtv_property_cache.layer[0].modulation ==
QAM_64)
|| (state->fe->dtv_property_cache.
layer[0].modulation == QAM_16)))
||
((state->fe->dtv_property_cache.layer[1].segment_count >
0)
&&
((state->fe->dtv_property_cache.layer[1].modulation ==
QAM_64)
|| (state->fe->dtv_property_cache.
layer[1].modulation == QAM_16)))
||
((state->fe->dtv_property_cache.layer[2].segment_count >
0)
&&
((state->fe->dtv_property_cache.layer[2].modulation ==
QAM_64)
|| (state->fe->dtv_property_cache.
layer[2].modulation == QAM_16)))
)
)
adc_error += 60;
#endif
if (*tune_state == CT_AGC_STEP_1) { /* quickly go to the correct range of the ADC power */
if (ABS(adc_error) < 50 || state->agc_step++ > 5) {
#ifdef CONFIG_STANDARD_DAB
if (state->fe->dtv_property_cache.delivery_system == STANDARD_DAB) {
dib0090_write_reg(state, 0x02, (1 << 15) | (15 << 11) | (31 << 6) | (63)); /* cap value = 63 : narrow BB filter : Fc = 1.8MHz */
dib0090_write_reg(state, 0x04, 0x0);
} else
#endif
{
dib0090_write_reg(state, 0x02, (1 << 15) | (3 << 11) | (6 << 6) | (32));
dib0090_write_reg(state, 0x04, 0x01); /*0 = 1KHz ; 1 = 150Hz ; 2 = 50Hz ; 3 = 50KHz ; 4 = servo fast */
}
*tune_state = CT_AGC_STOP;
}
} else {
/* everything higher than or equal to CT_AGC_STOP means tracking */
ret = 100; /* 10ms interval */
apply_gain_immediatly = 0;
}
}
#ifdef DEBUG_AGC
dprintk
("tune state %d, ADC = %3ddB (ADC err %3d) WBD %3ddB (WBD err %3d, WBD val SADC: %4d), RFGainLimit (TOP): %3d, signal: %3ddBm",
(u32) *tune_state, (u32) adc, (u32) adc_error, (u32) wbd, (u32) wbd_error, (u32) wbd_val,
(u32) state->rf_gain_limit >> WBD_ALPHA, (s32) 200 + adc - (state->current_gain >> GAIN_ALPHA));
#endif
}
/* apply gain */
if (!state->agc_freeze)
dib0090_gain_apply(state, adc_error, wbd_error, apply_gain_immediatly);
return ret;
}
EXPORT_SYMBOL(dib0090_gain_control);
void dib0090_get_current_gain(struct dvb_frontend *fe, u16 * rf, u16 * bb, u16 * rf_gain_limit, u16 * rflt)
{
struct dib0090_state *state = fe->tuner_priv;
if (rf)
*rf = state->gain[0];
if (bb)
*bb = state->gain[1];
if (rf_gain_limit)
*rf_gain_limit = state->rf_gain_limit;
if (rflt)
*rflt = (state->rf_lt_def >> 10) & 0x7;
}
EXPORT_SYMBOL(dib0090_get_current_gain);
u16 dib0090_get_wbd_offset(struct dvb_frontend *fe)
{
struct dib0090_state *state = fe->tuner_priv;
u32 f_MHz = state->fe->dtv_property_cache.frequency / 1000000;
s32 current_temp = state->temperature;
s32 wbd_thot, wbd_tcold;
const struct dib0090_wbd_slope *wbd = state->current_wbd_table;
while (f_MHz > wbd->max_freq)
wbd++;
dprintk("using wbd-table-entry with max freq %d", wbd->max_freq);
if (current_temp < 0)
current_temp = 0;
if (current_temp > 128)
current_temp = 128;
state->wbdmux &= ~(7 << 13);
if (wbd->wbd_gain != 0)
state->wbdmux |= (wbd->wbd_gain << 13);
else
state->wbdmux |= (4 << 13);
dib0090_write_reg(state, 0x10, state->wbdmux);
wbd_thot = wbd->offset_hot - (((u32) wbd->slope_hot * f_MHz) >> 6);
wbd_tcold = wbd->offset_cold - (((u32) wbd->slope_cold * f_MHz) >> 6);
wbd_tcold += ((wbd_thot - wbd_tcold) * current_temp) >> 7;
state->wbd_target = dib0090_wbd_to_db(state, state->wbd_offset + wbd_tcold);
dprintk("wbd-target: %d dB", (u32) state->wbd_target);
dprintk("wbd offset applied is %d", wbd_tcold);
return state->wbd_offset + wbd_tcold;
}
EXPORT_SYMBOL(dib0090_get_wbd_offset);
static const u16 dib0090_defaults[] = {
25, 0x01,
0x0000,
0x99a0,
0x6008,
0x0000,
0x8bcb,
0x0000,
0x0405,
0x0000,
0x0000,
0x0000,
0xb802,
0x0300,
0x2d12,
0xbac0,
0x7c00,
0xdbb9,
0x0954,
0x0743,
0x8000,
0x0001,
0x0040,
0x0100,
0x0000,
0xe910,
0x149e,
1, 0x1c,
0xff2d,
1, 0x39,
0x0000,
2, 0x1e,
0x07FF,
0x0007,
1, 0x24,
EN_UHF | EN_CRYSTAL,
2, 0x3c,
0x3ff,
0x111,
0
};
static const u16 dib0090_p1g_additionnal_defaults[] = {
1, 0x05,
0xabcd,
1, 0x11,
0x00b4,
1, 0x1c,
0xfffd,
1, 0x40,
0x108,
0
};
static void dib0090_set_default_config(struct dib0090_state *state, const u16 * n)
{
u16 l, r;
l = pgm_read_word(n++);
while (l) {
r = pgm_read_word(n++);
do {
dib0090_write_reg(state, r, pgm_read_word(n++));
r++;
} while (--l);
l = pgm_read_word(n++);
}
}
#define CAP_VALUE_MIN (u8) 9
#define CAP_VALUE_MAX (u8) 40
#define HR_MIN (u8) 25
#define HR_MAX (u8) 40
#define POLY_MIN (u8) 0
#define POLY_MAX (u8) 8
void dib0090_set_EFUSE(struct dib0090_state *state)
{
u8 c, h, n;
u16 e2, e4;
u16 cal;
e2 = dib0090_read_reg(state, 0x26);
e4 = dib0090_read_reg(state, 0x28);
if ((state->identity.version == P1D_E_F) ||
(state->identity.version == P1G) || (e2 == 0xffff)) {
dib0090_write_reg(state, 0x22, 0x10);
cal = (dib0090_read_reg(state, 0x22) >> 6) & 0x3ff;
if ((cal < 670) || (cal == 1023))
cal = 850;
n = 165 - ((cal * 10)>>6) ;
e2 = e4 = (3<<12) | (34<<6) | (n);
}
if (e2 != e4)
e2 &= e4; /* Remove the redundancy */
if (e2 != 0xffff) {
c = e2 & 0x3f;
n = (e2 >> 12) & 0xf;
h = (e2 >> 6) & 0x3f;
if ((c >= CAP_VALUE_MAX) || (c <= CAP_VALUE_MIN))
c = 32;
if ((h >= HR_MAX) || (h <= HR_MIN))
h = 34;
if ((n >= POLY_MAX) || (n <= POLY_MIN))
n = 3;
dib0090_write_reg(state, 0x13, (h << 10)) ;
e2 = (n<<11) | ((h>>2)<<6) | (c);
dib0090_write_reg(state, 0x2, e2) ; /* Load the BB_2 */
}
}
static int dib0090_reset(struct dvb_frontend *fe)
{
struct dib0090_state *state = fe->tuner_priv;
dib0090_reset_digital(fe, state->config);
if (dib0090_identify(fe) < 0)
return -EIO;
#ifdef CONFIG_TUNER_DIB0090_P1B_SUPPORT
if (!(state->identity.version & 0x1)) /* it is P1B - reset is already done */
return 0;
#endif
if (!state->identity.in_soc) {
if ((dib0090_read_reg(state, 0x1a) >> 5) & 0x2)
dib0090_write_reg(state, 0x1b, (EN_IQADC | EN_BB | EN_BIAS | EN_DIGCLK | EN_PLL | EN_CRYSTAL));
else
dib0090_write_reg(state, 0x1b, (EN_DIGCLK | EN_PLL | EN_CRYSTAL));
}
dib0090_set_default_config(state, dib0090_defaults);
if (state->identity.in_soc)
dib0090_write_reg(state, 0x18, 0x2910); /* charge pump current = 0 */
if (state->identity.p1g)
dib0090_set_default_config(state, dib0090_p1g_additionnal_defaults);
/* Update the efuse : Only available for KROSUS > P1C and SOC as well*/
if (((state->identity.version & 0x1f) >= P1D_E_F) || (state->identity.in_soc))
dib0090_set_EFUSE(state);
/* Congigure in function of the crystal */
if (state->config->io.clock_khz >= 24000)
dib0090_write_reg(state, 0x14, 1);
else
dib0090_write_reg(state, 0x14, 2);
dprintk("Pll lock : %d", (dib0090_read_reg(state, 0x1a) >> 11) & 0x1);
state->calibrate = DC_CAL | WBD_CAL | TEMP_CAL; /* enable iq-offset-calibration and wbd-calibration when tuning next time */
return 0;
}
#define steps(u) (((u) > 15) ? ((u)-16) : (u))
#define INTERN_WAIT 10
static int dib0090_get_offset(struct dib0090_state *state, enum frontend_tune_state *tune_state)
{
int ret = INTERN_WAIT * 10;
switch (*tune_state) {
case CT_TUNER_STEP_2:
/* Turns to positive */
dib0090_write_reg(state, 0x1f, 0x7);
*tune_state = CT_TUNER_STEP_3;
break;
case CT_TUNER_STEP_3:
state->adc_diff = dib0090_read_reg(state, 0x1d);
/* Turns to negative */
dib0090_write_reg(state, 0x1f, 0x4);
*tune_state = CT_TUNER_STEP_4;
break;
case CT_TUNER_STEP_4:
state->adc_diff -= dib0090_read_reg(state, 0x1d);
*tune_state = CT_TUNER_STEP_5;
ret = 0;
break;
default:
break;
}
return ret;
}
struct dc_calibration {
u8 addr;
u8 offset;
u8 pga:1;
u16 bb1;
u8 i:1;
};
static const struct dc_calibration dc_table[] = {
/* Step1 BB gain1= 26 with boost 1, gain 2 = 0 */
{0x06, 5, 1, (1 << 13) | (0 << 8) | (26 << 3), 1},
{0x07, 11, 1, (1 << 13) | (0 << 8) | (26 << 3), 0},
/* Step 2 BB gain 1 = 26 with boost = 1 & gain 2 = 29 */
{0x06, 0, 0, (1 << 13) | (29 << 8) | (26 << 3), 1},
{0x06, 10, 0, (1 << 13) | (29 << 8) | (26 << 3), 0},
{0},
};
static const struct dc_calibration dc_p1g_table[] = {
/* Step1 BB gain1= 26 with boost 1, gain 2 = 0 */
/* addr ; trim reg offset ; pga ; CTRL_BB1 value ; i or q */
{0x06, 5, 1, (1 << 13) | (0 << 8) | (15 << 3), 1},
{0x07, 11, 1, (1 << 13) | (0 << 8) | (15 << 3), 0},
/* Step 2 BB gain 1 = 26 with boost = 1 & gain 2 = 29 */
{0x06, 0, 0, (1 << 13) | (29 << 8) | (15 << 3), 1},
{0x06, 10, 0, (1 << 13) | (29 << 8) | (15 << 3), 0},
{0},
};
static void dib0090_set_trim(struct dib0090_state *state)
{
u16 *val;
if (state->dc->addr == 0x07)
val = &state->bb7;
else
val = &state->bb6;
*val &= ~(0x1f << state->dc->offset);
*val |= state->step << state->dc->offset;
dib0090_write_reg(state, state->dc->addr, *val);
}
static int dib0090_dc_offset_calibration(struct dib0090_state *state, enum frontend_tune_state *tune_state)
{
int ret = 0;
u16 reg;
switch (*tune_state) {
case CT_TUNER_START:
dprintk("Start DC offset calibration");
/* force vcm2 = 0.8V */
state->bb6 = 0;
state->bb7 = 0x040d;
/* the LNA AND LO are off */
reg = dib0090_read_reg(state, 0x24) & 0x0ffb; /* shutdown lna and lo */
dib0090_write_reg(state, 0x24, reg);
state->wbdmux = dib0090_read_reg(state, 0x10);
dib0090_write_reg(state, 0x10, (state->wbdmux & ~(0xff << 3)) | (0x7 << 3) | 0x3);
dib0090_write_reg(state, 0x23, dib0090_read_reg(state, 0x23) & ~(1 << 14));
state->dc = dc_table;
if (state->identity.p1g)
state->dc = dc_p1g_table;
*tune_state = CT_TUNER_STEP_0;
/* fall through */
case CT_TUNER_STEP_0:
dprintk("Sart/continue DC calibration for %s path", (state->dc->i == 1) ? "I" : "Q");
dib0090_write_reg(state, 0x01, state->dc->bb1);
dib0090_write_reg(state, 0x07, state->bb7 | (state->dc->i << 7));
state->step = 0;
state->min_adc_diff = 1023;
*tune_state = CT_TUNER_STEP_1;
ret = 50;
break;
case CT_TUNER_STEP_1:
dib0090_set_trim(state);
*tune_state = CT_TUNER_STEP_2;
break;
case CT_TUNER_STEP_2:
case CT_TUNER_STEP_3:
case CT_TUNER_STEP_4:
ret = dib0090_get_offset(state, tune_state);
break;
case CT_TUNER_STEP_5: /* found an offset */
dprintk("adc_diff = %d, current step= %d", (u32) state->adc_diff, state->step);
if (state->step == 0 && state->adc_diff < 0) {
state->min_adc_diff = -1023;
dprintk("Change of sign of the minimum adc diff");
}
dprintk("adc_diff = %d, min_adc_diff = %d current_step = %d", state->adc_diff, state->min_adc_diff, state->step);
/* first turn for this frequency */
if (state->step == 0) {
if (state->dc->pga && state->adc_diff < 0)
state->step = 0x10;
if (state->dc->pga == 0 && state->adc_diff > 0)
state->step = 0x10;
}
/* Look for a change of Sign in the Adc_diff.min_adc_diff is used to STORE the setp N-1 */
if ((state->adc_diff & 0x8000) == (state->min_adc_diff & 0x8000) && steps(state->step) < 15) {
/* stop search when the delta the sign is changing and Steps =15 and Step=0 is force for continuance */
state->step++;
state->min_adc_diff = state->adc_diff;
*tune_state = CT_TUNER_STEP_1;
} else {
/* the minimum was what we have seen in the step before */
if (ABS(state->adc_diff) > ABS(state->min_adc_diff)) {
dprintk("Since adc_diff N = %d > adc_diff step N-1 = %d, Come back one step", state->adc_diff, state->min_adc_diff);
state->step--;
}
dib0090_set_trim(state);
dprintk("BB Offset Cal, BBreg=%hd,Offset=%hd,Value Set=%hd", state->dc->addr, state->adc_diff, state->step);
state->dc++;
if (state->dc->addr == 0) /* done */
*tune_state = CT_TUNER_STEP_6;
else
*tune_state = CT_TUNER_STEP_0;
}
break;
case CT_TUNER_STEP_6:
dib0090_write_reg(state, 0x07, state->bb7 & ~0x0008);
dib0090_write_reg(state, 0x1f, 0x7);
*tune_state = CT_TUNER_START; /* reset done -> real tuning can now begin */
state->calibrate &= ~DC_CAL;
default:
break;
}
return ret;
}
static int dib0090_wbd_calibration(struct dib0090_state *state, enum frontend_tune_state *tune_state)
{
u8 wbd_gain;
const struct dib0090_wbd_slope *wbd = state->current_wbd_table;
switch (*tune_state) {
case CT_TUNER_START:
while (state->current_rf / 1000 > wbd->max_freq)
wbd++;
if (wbd->wbd_gain != 0)
wbd_gain = wbd->wbd_gain;
else {
wbd_gain = 4;
#if defined(CONFIG_BAND_LBAND) || defined(CONFIG_BAND_SBAND)
if ((state->current_band == BAND_LBAND) || (state->current_band == BAND_SBAND))
wbd_gain = 2;
#endif
}
if (wbd_gain == state->wbd_calibration_gain) { /* the WBD calibration has already been done */
*tune_state = CT_TUNER_START;
state->calibrate &= ~WBD_CAL;
return 0;
}
dib0090_write_reg(state, 0x10, 0x1b81 | (1 << 10) | (wbd_gain << 13) | (1 << 3));
dib0090_write_reg(state, 0x24, ((EN_UHF & 0x0fff) | (1 << 1)));
*tune_state = CT_TUNER_STEP_0;
state->wbd_calibration_gain = wbd_gain;
return 90; /* wait for the WBDMUX to switch and for the ADC to sample */
case CT_TUNER_STEP_0:
state->wbd_offset = dib0090_get_slow_adc_val(state);
dprintk("WBD calibration offset = %d", state->wbd_offset);
*tune_state = CT_TUNER_START; /* reset done -> real tuning can now begin */
state->calibrate &= ~WBD_CAL;
break;
default:
break;
}
return 0;
}
static void dib0090_set_bandwidth(struct dib0090_state *state)
{
u16 tmp;
if (state->fe->dtv_property_cache.bandwidth_hz / 1000 <= 5000)
tmp = (3 << 14);
else if (state->fe->dtv_property_cache.bandwidth_hz / 1000 <= 6000)
tmp = (2 << 14);
else if (state->fe->dtv_property_cache.bandwidth_hz / 1000 <= 7000)
tmp = (1 << 14);
else
tmp = (0 << 14);
state->bb_1_def &= 0x3fff;
state->bb_1_def |= tmp;
dib0090_write_reg(state, 0x01, state->bb_1_def); /* be sure that we have the right bb-filter */
dib0090_write_reg(state, 0x03, 0x6008); /* = 0x6008 : vcm3_trim = 1 ; filter2_gm1_trim = 8 ; filter2_cutoff_freq = 0 */
dib0090_write_reg(state, 0x04, 0x1); /* 0 = 1KHz ; 1 = 50Hz ; 2 = 150Hz ; 3 = 50KHz ; 4 = servo fast */
if (state->identity.in_soc) {
dib0090_write_reg(state, 0x05, 0x9bcf); /* attenuator_ibias_tri = 2 ; input_stage_ibias_tr = 1 ; nc = 11 ; ext_gm_trim = 1 ; obuf_ibias_trim = 4 ; filter13_gm2_ibias_t = 15 */
} else {
dib0090_write_reg(state, 0x02, (5 << 11) | (8 << 6) | (22 & 0x3f)); /* 22 = cap_value */
dib0090_write_reg(state, 0x05, 0xabcd); /* = 0xabcd : attenuator_ibias_tri = 2 ; input_stage_ibias_tr = 2 ; nc = 11 ; ext_gm_trim = 1 ; obuf_ibias_trim = 4 ; filter13_gm2_ibias_t = 13 */
}
}
static const struct dib0090_pll dib0090_pll_table[] = {
#ifdef CONFIG_BAND_CBAND
{56000, 0, 9, 48, 6},
{70000, 1, 9, 48, 6},
{87000, 0, 8, 32, 4},
{105000, 1, 8, 32, 4},
{115000, 0, 7, 24, 6},
{140000, 1, 7, 24, 6},
{170000, 0, 6, 16, 4},
#endif
#ifdef CONFIG_BAND_VHF
{200000, 1, 6, 16, 4},
{230000, 0, 5, 12, 6},
{280000, 1, 5, 12, 6},
{340000, 0, 4, 8, 4},
{380000, 1, 4, 8, 4},
{450000, 0, 3, 6, 6},
#endif
#ifdef CONFIG_BAND_UHF
{580000, 1, 3, 6, 6},
{700000, 0, 2, 4, 4},
{860000, 1, 2, 4, 4},
#endif
#ifdef CONFIG_BAND_LBAND
{1800000, 1, 0, 2, 4},
#endif
#ifdef CONFIG_BAND_SBAND
{2900000, 0, 14, 1, 4},
#endif
};
static const struct dib0090_tuning dib0090_tuning_table_fm_vhf_on_cband[] = {
#ifdef CONFIG_BAND_CBAND
{184000, 4, 1, 15, 0x280, 0x2912, 0xb94e, EN_CAB},
{227000, 4, 3, 15, 0x280, 0x2912, 0xb94e, EN_CAB},
{380000, 4, 7, 15, 0x280, 0x2912, 0xb94e, EN_CAB},
#endif
#ifdef CONFIG_BAND_UHF
{520000, 2, 0, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
{550000, 2, 2, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
{650000, 2, 3, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
{750000, 2, 5, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
{850000, 2, 6, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
{900000, 2, 7, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
#endif
#ifdef CONFIG_BAND_LBAND
{1500000, 4, 0, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
{1600000, 4, 1, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
{1800000, 4, 3, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
#endif
#ifdef CONFIG_BAND_SBAND
{2300000, 1, 4, 20, 0x300, 0x2d2A, 0x82c7, EN_SBD},
{2900000, 1, 7, 20, 0x280, 0x2deb, 0x8347, EN_SBD},
#endif
};
static const struct dib0090_tuning dib0090_tuning_table[] = {
#ifdef CONFIG_BAND_CBAND
{170000, 4, 1, 15, 0x280, 0x2912, 0xb94e, EN_CAB},
#endif
#ifdef CONFIG_BAND_VHF
{184000, 1, 1, 15, 0x300, 0x4d12, 0xb94e, EN_VHF},
{227000, 1, 3, 15, 0x300, 0x4d12, 0xb94e, EN_VHF},
{380000, 1, 7, 15, 0x300, 0x4d12, 0xb94e, EN_VHF},
#endif
#ifdef CONFIG_BAND_UHF
{520000, 2, 0, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
{550000, 2, 2, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
{650000, 2, 3, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
{750000, 2, 5, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
{850000, 2, 6, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
{900000, 2, 7, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
#endif
#ifdef CONFIG_BAND_LBAND
{1500000, 4, 0, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
{1600000, 4, 1, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
{1800000, 4, 3, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
#endif
#ifdef CONFIG_BAND_SBAND
{2300000, 1, 4, 20, 0x300, 0x2d2A, 0x82c7, EN_SBD},
{2900000, 1, 7, 20, 0x280, 0x2deb, 0x8347, EN_SBD},
#endif
};
static const struct dib0090_tuning dib0090_p1g_tuning_table[] = {
#ifdef CONFIG_BAND_CBAND
{170000, 4, 1, 0x820f, 0x300, 0x2d22, 0x82cb, EN_CAB},
#endif
#ifdef CONFIG_BAND_VHF
{184000, 1, 1, 15, 0x300, 0x4d12, 0xb94e, EN_VHF},
{227000, 1, 3, 15, 0x300, 0x4d12, 0xb94e, EN_VHF},
{380000, 1, 7, 15, 0x300, 0x4d12, 0xb94e, EN_VHF},
#endif
#ifdef CONFIG_BAND_UHF
{510000, 2, 0, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
{540000, 2, 1, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
{600000, 2, 3, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
{630000, 2, 4, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
{680000, 2, 5, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
{720000, 2, 6, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
{900000, 2, 7, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
#endif
#ifdef CONFIG_BAND_LBAND
{1500000, 4, 0, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
{1600000, 4, 1, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
{1800000, 4, 3, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
#endif
#ifdef CONFIG_BAND_SBAND
{2300000, 1, 4, 20, 0x300, 0x2d2A, 0x82c7, EN_SBD},
{2900000, 1, 7, 20, 0x280, 0x2deb, 0x8347, EN_SBD},
#endif
};
static const struct dib0090_pll dib0090_p1g_pll_table[] = {
#ifdef CONFIG_BAND_CBAND
{57000, 0, 11, 48, 6},
{70000, 1, 11, 48, 6},
{86000, 0, 10, 32, 4},
{105000, 1, 10, 32, 4},
{115000, 0, 9, 24, 6},
{140000, 1, 9, 24, 6},
{170000, 0, 8, 16, 4},
#endif
#ifdef CONFIG_BAND_VHF
{200000, 1, 8, 16, 4},
{230000, 0, 7, 12, 6},
{280000, 1, 7, 12, 6},
{340000, 0, 6, 8, 4},
{380000, 1, 6, 8, 4},
{455000, 0, 5, 6, 6},
#endif
#ifdef CONFIG_BAND_UHF
{580000, 1, 5, 6, 6},
{680000, 0, 4, 4, 4},
{860000, 1, 4, 4, 4},
#endif
#ifdef CONFIG_BAND_LBAND
{1800000, 1, 2, 2, 4},
#endif
#ifdef CONFIG_BAND_SBAND
{2900000, 0, 1, 1, 6},
#endif
};
static const struct dib0090_tuning dib0090_p1g_tuning_table_fm_vhf_on_cband[] = {
#ifdef CONFIG_BAND_CBAND
{184000, 4, 3, 0x4187, 0x2c0, 0x2d22, 0x81cb, EN_CAB},
{227000, 4, 3, 0x4187, 0x2c0, 0x2d22, 0x81cb, EN_CAB},
{380000, 4, 3, 0x4187, 0x2c0, 0x2d22, 0x81cb, EN_CAB},
#endif
#ifdef CONFIG_BAND_UHF
{520000, 2, 0, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
{550000, 2, 2, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
{650000, 2, 3, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
{750000, 2, 5, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
{850000, 2, 6, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
{900000, 2, 7, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
#endif
#ifdef CONFIG_BAND_LBAND
{1500000, 4, 0, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
{1600000, 4, 1, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
{1800000, 4, 3, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
#endif
#ifdef CONFIG_BAND_SBAND
{2300000, 1, 4, 20, 0x300, 0x2d2A, 0x82c7, EN_SBD},
{2900000, 1, 7, 20, 0x280, 0x2deb, 0x8347, EN_SBD},
#endif
};
static const struct dib0090_tuning dib0090_tuning_table_cband_7090[] = {
#ifdef CONFIG_BAND_CBAND
{300000, 4, 3, 0x018F, 0x2c0, 0x2d22, 0xb9ce, EN_CAB},
{380000, 4, 10, 0x018F, 0x2c0, 0x2d22, 0xb9ce, EN_CAB},
{570000, 4, 10, 0x8190, 0x2c0, 0x2d22, 0xb9ce, EN_CAB},
{858000, 4, 5, 0x8190, 0x2c0, 0x2d22, 0xb9ce, EN_CAB},
#endif
};
static int dib0090_captrim_search(struct dib0090_state *state, enum frontend_tune_state *tune_state)
{
int ret = 0;
u16 lo4 = 0xe900;
s16 adc_target;
u16 adc;
s8 step_sign;
u8 force_soft_search = 0;
if (state->identity.version == SOC_8090_P1G_11R1 || state->identity.version == SOC_8090_P1G_21R1)
force_soft_search = 1;
if (*tune_state == CT_TUNER_START) {
dprintk("Start Captrim search : %s", (force_soft_search == 1) ? "FORCE SOFT SEARCH" : "AUTO");
dib0090_write_reg(state, 0x10, 0x2B1);
dib0090_write_reg(state, 0x1e, 0x0032);
if (!state->tuner_is_tuned) {
/* prepare a complete captrim */
if (!state->identity.p1g || force_soft_search)
state->step = state->captrim = state->fcaptrim = 64;
state->current_rf = state->rf_request;
} else { /* we are already tuned to this frequency - the configuration is correct */
if (!state->identity.p1g || force_soft_search) {
/* do a minimal captrim even if the frequency has not changed */
state->step = 4;
state->captrim = state->fcaptrim = dib0090_read_reg(state, 0x18) & 0x7f;
}
}
state->adc_diff = 3000;
*tune_state = CT_TUNER_STEP_0;
} else if (*tune_state == CT_TUNER_STEP_0) {
if (state->identity.p1g && !force_soft_search) {
u8 ratio = 31;
dib0090_write_reg(state, 0x40, (3 << 7) | (ratio << 2) | (1 << 1) | 1);
dib0090_read_reg(state, 0x40);
ret = 50;
} else {
state->step /= 2;
dib0090_write_reg(state, 0x18, lo4 | state->captrim);
if (state->identity.in_soc)
ret = 25;
}
*tune_state = CT_TUNER_STEP_1;
} else if (*tune_state == CT_TUNER_STEP_1) {
if (state->identity.p1g && !force_soft_search) {
dib0090_write_reg(state, 0x40, 0x18c | (0 << 1) | 0);
dib0090_read_reg(state, 0x40);
state->fcaptrim = dib0090_read_reg(state, 0x18) & 0x7F;
dprintk("***Final Captrim= 0x%x", state->fcaptrim);
*tune_state = CT_TUNER_STEP_3;
} else {
/* MERGE for all krosus before P1G */
adc = dib0090_get_slow_adc_val(state);
dprintk("CAPTRIM=%d; ADC = %d (ADC) & %dmV", (u32) state->captrim, (u32) adc, (u32) (adc) * (u32) 1800 / (u32) 1024);
if (state->rest == 0 || state->identity.in_soc) { /* Just for 8090P SOCS where auto captrim HW bug : TO CHECK IN ACI for SOCS !!! if 400 for 8090p SOC => tune issue !!! */
adc_target = 200;
} else
adc_target = 400;
if (adc >= adc_target) {
adc -= adc_target;
step_sign = -1;
} else {
adc = adc_target - adc;
step_sign = 1;
}
if (adc < state->adc_diff) {
dprintk("CAPTRIM=%d is closer to target (%d/%d)", (u32) state->captrim, (u32) adc, (u32) state->adc_diff);
state->adc_diff = adc;
state->fcaptrim = state->captrim;
}
state->captrim += step_sign * state->step;
if (state->step >= 1)
*tune_state = CT_TUNER_STEP_0;
else
*tune_state = CT_TUNER_STEP_2;
ret = 25;
}
} else if (*tune_state == CT_TUNER_STEP_2) { /* this step is only used by krosus < P1G */
/*write the final cptrim config */
dib0090_write_reg(state, 0x18, lo4 | state->fcaptrim);
*tune_state = CT_TUNER_STEP_3;
} else if (*tune_state == CT_TUNER_STEP_3) {
state->calibrate &= ~CAPTRIM_CAL;
*tune_state = CT_TUNER_STEP_0;
}
return ret;
}
static int dib0090_get_temperature(struct dib0090_state *state, enum frontend_tune_state *tune_state)
{
int ret = 15;
s16 val;
switch (*tune_state) {
case CT_TUNER_START:
state->wbdmux = dib0090_read_reg(state, 0x10);
dib0090_write_reg(state, 0x10, (state->wbdmux & ~(0xff << 3)) | (0x8 << 3));
state->bias = dib0090_read_reg(state, 0x13);
dib0090_write_reg(state, 0x13, state->bias | (0x3 << 8));
*tune_state = CT_TUNER_STEP_0;
/* wait for the WBDMUX to switch and for the ADC to sample */
break;
case CT_TUNER_STEP_0:
state->adc_diff = dib0090_get_slow_adc_val(state);
dib0090_write_reg(state, 0x13, (state->bias & ~(0x3 << 8)) | (0x2 << 8));
*tune_state = CT_TUNER_STEP_1;
break;
case CT_TUNER_STEP_1:
val = dib0090_get_slow_adc_val(state);
state->temperature = ((s16) ((val - state->adc_diff) * 180) >> 8) + 55;
dprintk("temperature: %d C", state->temperature - 30);
*tune_state = CT_TUNER_STEP_2;
break;
case CT_TUNER_STEP_2:
dib0090_write_reg(state, 0x13, state->bias);
dib0090_write_reg(state, 0x10, state->wbdmux); /* write back original WBDMUX */
*tune_state = CT_TUNER_START;
state->calibrate &= ~TEMP_CAL;
if (state->config->analog_output == 0)
dib0090_write_reg(state, 0x23, dib0090_read_reg(state, 0x23) | (1 << 14));
break;
default:
ret = 0;
break;
}
return ret;
}
#define WBD 0x781 /* 1 1 1 1 0000 0 0 1 */
static int dib0090_tune(struct dvb_frontend *fe)
{
struct dib0090_state *state = fe->tuner_priv;
const struct dib0090_tuning *tune = state->current_tune_table_index;
const struct dib0090_pll *pll = state->current_pll_table_index;
enum frontend_tune_state *tune_state = &state->tune_state;
u16 lo5, lo6, Den, tmp;
u32 FBDiv, Rest, FREF, VCOF_kHz = 0;
int ret = 10; /* 1ms is the default delay most of the time */
u8 c, i;
/************************* VCO ***************************/
/* Default values for FG */
/* from these are needed : */
/* Cp,HFdiv,VCOband,SD,Num,Den,FB and REFDiv */
/* in any case we first need to do a calibration if needed */
if (*tune_state == CT_TUNER_START) {
/* deactivate DataTX before some calibrations */
if (state->calibrate & (DC_CAL | TEMP_CAL | WBD_CAL))
dib0090_write_reg(state, 0x23, dib0090_read_reg(state, 0x23) & ~(1 << 14));
else
/* Activate DataTX in case a calibration has been done before */
if (state->config->analog_output == 0)
dib0090_write_reg(state, 0x23, dib0090_read_reg(state, 0x23) | (1 << 14));
}
if (state->calibrate & DC_CAL)
return dib0090_dc_offset_calibration(state, tune_state);
else if (state->calibrate & WBD_CAL) {
if (state->current_rf == 0)
state->current_rf = state->fe->dtv_property_cache.frequency / 1000;
return dib0090_wbd_calibration(state, tune_state);
} else if (state->calibrate & TEMP_CAL)
return dib0090_get_temperature(state, tune_state);
else if (state->calibrate & CAPTRIM_CAL)
return dib0090_captrim_search(state, tune_state);
if (*tune_state == CT_TUNER_START) {
/* if soc and AGC pwm control, disengage mux to be able to R/W access to 0x01 register to set the right filter (cutoff_freq_select) during the tune sequence, otherwise, SOC SERPAR error when accessing to 0x01 */
if (state->config->use_pwm_agc && state->identity.in_soc) {
tmp = dib0090_read_reg(state, 0x39);
if ((tmp >> 10) & 0x1)
dib0090_write_reg(state, 0x39, tmp & ~(1 << 10));
}
state->current_band = (u8) BAND_OF_FREQUENCY(state->fe->dtv_property_cache.frequency / 1000);
state->rf_request =
state->fe->dtv_property_cache.frequency / 1000 + (state->current_band ==
BAND_UHF ? state->config->freq_offset_khz_uhf : state->config->
freq_offset_khz_vhf);
/* in ISDB-T 1seg we shift tuning frequency */
if ((state->fe->dtv_property_cache.delivery_system == SYS_ISDBT && state->fe->dtv_property_cache.isdbt_sb_mode == 1
&& state->fe->dtv_property_cache.isdbt_partial_reception == 0)) {
const struct dib0090_low_if_offset_table *LUT_offset = state->config->low_if;
u8 found_offset = 0;
u32 margin_khz = 100;
if (LUT_offset != NULL) {
while (LUT_offset->RF_freq != 0xffff) {
if (((state->rf_request > (LUT_offset->RF_freq - margin_khz))
&& (state->rf_request < (LUT_offset->RF_freq + margin_khz)))
&& LUT_offset->std == state->fe->dtv_property_cache.delivery_system) {
state->rf_request += LUT_offset->offset_khz;
found_offset = 1;
break;
}
LUT_offset++;
}
}
if (found_offset == 0)
state->rf_request += 400;
}
if (state->current_rf != state->rf_request || (state->current_standard != state->fe->dtv_property_cache.delivery_system)) {
state->tuner_is_tuned = 0;
state->current_rf = 0;
state->current_standard = 0;
tune = dib0090_tuning_table;
if (state->identity.p1g)
tune = dib0090_p1g_tuning_table;
tmp = (state->identity.version >> 5) & 0x7;
if (state->identity.in_soc) {
if (state->config->force_cband_input) { /* Use the CBAND input for all band */
if (state->current_band & BAND_CBAND || state->current_band & BAND_FM || state->current_band & BAND_VHF
|| state->current_band & BAND_UHF) {
state->current_band = BAND_CBAND;
tune = dib0090_tuning_table_cband_7090;
}
} else { /* Use the CBAND input for all band under UHF */
if (state->current_band & BAND_CBAND || state->current_band & BAND_FM || state->current_band & BAND_VHF) {
state->current_band = BAND_CBAND;
tune = dib0090_tuning_table_cband_7090;
}
}
} else
if (tmp == 0x4 || tmp == 0x7) {
/* CBAND tuner version for VHF */
if (state->current_band == BAND_FM || state->current_band == BAND_CBAND || state->current_band == BAND_VHF) {
state->current_band = BAND_CBAND; /* Force CBAND */
tune = dib0090_tuning_table_fm_vhf_on_cband;
if (state->identity.p1g)
tune = dib0090_p1g_tuning_table_fm_vhf_on_cband;
}
}
pll = dib0090_pll_table;
if (state->identity.p1g)
pll = dib0090_p1g_pll_table;
/* Look for the interval */
while (state->rf_request > tune->max_freq)
tune++;
while (state->rf_request > pll->max_freq)
pll++;
state->current_tune_table_index = tune;
state->current_pll_table_index = pll;
dib0090_write_reg(state, 0x0b, 0xb800 | (tune->switch_trim));
VCOF_kHz = (pll->hfdiv * state->rf_request) * 2;
FREF = state->config->io.clock_khz;
if (state->config->fref_clock_ratio != 0)
FREF /= state->config->fref_clock_ratio;
FBDiv = (VCOF_kHz / pll->topresc / FREF);
Rest = (VCOF_kHz / pll->topresc) - FBDiv * FREF;
if (Rest < LPF)
Rest = 0;
else if (Rest < 2 * LPF)
Rest = 2 * LPF;
else if (Rest > (FREF - LPF)) {
Rest = 0;
FBDiv += 1;
} else if (Rest > (FREF - 2 * LPF))
Rest = FREF - 2 * LPF;
Rest = (Rest * 6528) / (FREF / 10);
state->rest = Rest;
/* external loop filter, otherwise:
* lo5 = (0 << 15) | (0 << 12) | (0 << 11) | (3 << 9) | (4 << 6) | (3 << 4) | 4;
* lo6 = 0x0e34 */
if (Rest == 0) {
if (pll->vco_band)
lo5 = 0x049f;
else
lo5 = 0x041f;
} else {
if (pll->vco_band)
lo5 = 0x049e;
else if (state->config->analog_output)
lo5 = 0x041d;
else
lo5 = 0x041c;
}
if (state->identity.p1g) { /* Bias is done automatically in P1G */
if (state->identity.in_soc) {
if (state->identity.version == SOC_8090_P1G_11R1)
lo5 = 0x46f;
else
lo5 = 0x42f;
} else
lo5 = 0x42c;
}
lo5 |= (pll->hfdiv_code << 11) | (pll->vco_band << 7); /* bit 15 is the split to the slave, we do not do it here */
if (!state->config->io.pll_int_loop_filt) {
if (state->identity.in_soc)
lo6 = 0xff98;
else if (state->identity.p1g || (Rest == 0))
lo6 = 0xfff8;
else
lo6 = 0xff28;
} else
lo6 = (state->config->io.pll_int_loop_filt << 3);
Den = 1;
if (Rest > 0) {
if (state->config->analog_output)
lo6 |= (1 << 2) | 2;
else {
if (state->identity.in_soc)
lo6 |= (1 << 2) | 2;
else
lo6 |= (1 << 2) | 2;
}
Den = 255;
}
dib0090_write_reg(state, 0x15, (u16) FBDiv);
if (state->config->fref_clock_ratio != 0)
dib0090_write_reg(state, 0x16, (Den << 8) | state->config->fref_clock_ratio);
else
dib0090_write_reg(state, 0x16, (Den << 8) | 1);
dib0090_write_reg(state, 0x17, (u16) Rest);
dib0090_write_reg(state, 0x19, lo5);
dib0090_write_reg(state, 0x1c, lo6);
lo6 = tune->tuner_enable;
if (state->config->analog_output)
lo6 = (lo6 & 0xff9f) | 0x2;
dib0090_write_reg(state, 0x24, lo6 | EN_LO | state->config->use_pwm_agc * EN_CRYSTAL);
}
state->current_rf = state->rf_request;
state->current_standard = state->fe->dtv_property_cache.delivery_system;
ret = 20;
state->calibrate = CAPTRIM_CAL; /* captrim serach now */
}
else if (*tune_state == CT_TUNER_STEP_0) { /* Warning : because of captrim cal, if you change this step, change it also in _cal.c file because it is the step following captrim cal state machine */
const struct dib0090_wbd_slope *wbd = state->current_wbd_table;
while (state->current_rf / 1000 > wbd->max_freq)
wbd++;
dib0090_write_reg(state, 0x1e, 0x07ff);
dprintk("Final Captrim: %d", (u32) state->fcaptrim);
dprintk("HFDIV code: %d", (u32) pll->hfdiv_code);
dprintk("VCO = %d", (u32) pll->vco_band);
dprintk("VCOF in kHz: %d ((%d*%d) << 1))", (u32) ((pll->hfdiv * state->rf_request) * 2), (u32) pll->hfdiv, (u32) state->rf_request);
dprintk("REFDIV: %d, FREF: %d", (u32) 1, (u32) state->config->io.clock_khz);
dprintk("FBDIV: %d, Rest: %d", (u32) dib0090_read_reg(state, 0x15), (u32) dib0090_read_reg(state, 0x17));
dprintk("Num: %d, Den: %d, SD: %d", (u32) dib0090_read_reg(state, 0x17), (u32) (dib0090_read_reg(state, 0x16) >> 8),
(u32) dib0090_read_reg(state, 0x1c) & 0x3);
#define WBD 0x781 /* 1 1 1 1 0000 0 0 1 */
c = 4;
i = 3;
if (wbd->wbd_gain != 0)
c = wbd->wbd_gain;
state->wbdmux = (c << 13) | (i << 11) | (WBD | (state->config->use_pwm_agc << 1));
dib0090_write_reg(state, 0x10, state->wbdmux);
if ((tune->tuner_enable == EN_CAB) && state->identity.p1g) {
dprintk("P1G : The cable band is selected and lna_tune = %d", tune->lna_tune);
dib0090_write_reg(state, 0x09, tune->lna_bias);
dib0090_write_reg(state, 0x0b, 0xb800 | (tune->lna_tune << 6) | (tune->switch_trim));
} else
dib0090_write_reg(state, 0x09, (tune->lna_tune << 5) | tune->lna_bias);
dib0090_write_reg(state, 0x0c, tune->v2i);
dib0090_write_reg(state, 0x0d, tune->mix);
dib0090_write_reg(state, 0x0e, tune->load);
*tune_state = CT_TUNER_STEP_1;
} else if (*tune_state == CT_TUNER_STEP_1) {
/* initialize the lt gain register */
state->rf_lt_def = 0x7c00;
dib0090_set_bandwidth(state);
state->tuner_is_tuned = 1;
state->calibrate |= WBD_CAL;
state->calibrate |= TEMP_CAL;
*tune_state = CT_TUNER_STOP;
} else
ret = FE_CALLBACK_TIME_NEVER;
return ret;
}
static int dib0090_release(struct dvb_frontend *fe)
{
kfree(fe->tuner_priv);
fe->tuner_priv = NULL;
return 0;
}
enum frontend_tune_state dib0090_get_tune_state(struct dvb_frontend *fe)
{
struct dib0090_state *state = fe->tuner_priv;
return state->tune_state;
}
EXPORT_SYMBOL(dib0090_get_tune_state);
int dib0090_set_tune_state(struct dvb_frontend *fe, enum frontend_tune_state tune_state)
{
struct dib0090_state *state = fe->tuner_priv;
state->tune_state = tune_state;
return 0;
}
EXPORT_SYMBOL(dib0090_set_tune_state);
static int dib0090_get_frequency(struct dvb_frontend *fe, u32 * frequency)
{
struct dib0090_state *state = fe->tuner_priv;
*frequency = 1000 * state->current_rf;
return 0;
}
static int dib0090_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *p)
{
struct dib0090_state *state = fe->tuner_priv;
u32 ret;
state->tune_state = CT_TUNER_START;
do {
ret = dib0090_tune(fe);
if (ret != FE_CALLBACK_TIME_NEVER)
msleep(ret / 10);
else
break;
} while (state->tune_state != CT_TUNER_STOP);
return 0;
}
static const struct dvb_tuner_ops dib0090_ops = {
.info = {
.name = "DiBcom DiB0090",
.frequency_min = 45000000,
.frequency_max = 860000000,
.frequency_step = 1000,
},
.release = dib0090_release,
.init = dib0090_wakeup,
.sleep = dib0090_sleep,
.set_params = dib0090_set_params,
.get_frequency = dib0090_get_frequency,
};
static const struct dvb_tuner_ops dib0090_fw_ops = {
.info = {
.name = "DiBcom DiB0090",
.frequency_min = 45000000,
.frequency_max = 860000000,
.frequency_step = 1000,
},
.release = dib0090_release,
.init = NULL,
.sleep = NULL,
.set_params = NULL,
.get_frequency = NULL,
};
static const struct dib0090_wbd_slope dib0090_wbd_table_default[] = {
{470, 0, 250, 0, 100, 4},
{860, 51, 866, 21, 375, 4},
{1700, 0, 800, 0, 850, 4},
{2900, 0, 250, 0, 100, 6},
{0xFFFF, 0, 0, 0, 0, 0},
};
struct dvb_frontend *dib0090_register(struct dvb_frontend *fe, struct i2c_adapter *i2c, const struct dib0090_config *config)
{
struct dib0090_state *st = kzalloc(sizeof(struct dib0090_state), GFP_KERNEL);
if (st == NULL)
return NULL;
st->config = config;
st->i2c = i2c;
st->fe = fe;
fe->tuner_priv = st;
if (config->wbd == NULL)
st->current_wbd_table = dib0090_wbd_table_default;
else
st->current_wbd_table = config->wbd;
if (dib0090_reset(fe) != 0)
goto free_mem;
printk(KERN_INFO "DiB0090: successfully identified\n");
memcpy(&fe->ops.tuner_ops, &dib0090_ops, sizeof(struct dvb_tuner_ops));
return fe;
free_mem:
kfree(st);
fe->tuner_priv = NULL;
return NULL;
}
EXPORT_SYMBOL(dib0090_register);
struct dvb_frontend *dib0090_fw_register(struct dvb_frontend *fe, struct i2c_adapter *i2c, const struct dib0090_config *config)
{
struct dib0090_fw_state *st = kzalloc(sizeof(struct dib0090_fw_state), GFP_KERNEL);
if (st == NULL)
return NULL;
st->config = config;
st->i2c = i2c;
st->fe = fe;
fe->tuner_priv = st;
if (dib0090_fw_reset_digital(fe, st->config) != 0)
goto free_mem;
dprintk("DiB0090 FW: successfully identified");
memcpy(&fe->ops.tuner_ops, &dib0090_fw_ops, sizeof(struct dvb_tuner_ops));
return fe;
free_mem:
kfree(st);
fe->tuner_priv = NULL;
return NULL;
}
EXPORT_SYMBOL(dib0090_fw_register);
MODULE_AUTHOR("Patrick Boettcher <[email protected]>");
MODULE_AUTHOR("Olivier Grenie <[email protected]>");
MODULE_DESCRIPTION("Driver for the DiBcom 0090 base-band RF Tuner");
MODULE_LICENSE("GPL");