// SPDX-License-Identifier: GPL-2.0-only
/*
* Linux-DVB Driver for DiBcom's second generation DiB7000P (PC).
*
* Copyright (C) 2005-7 DiBcom (http://www.dibcom.fr/)
*/
#define pr_fmt(fmt) KBUILD_MODNAME
": " fmt
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/mutex.h>
#include <
asm /div64.h>
#include <linux/int_log.h>
#include <media/dvb_frontend.h>
#include "dib7000p.h"
static int debug;
module_param(debug,
int ,
0644 );
MODULE_PARM_DESC(debug,
"turn on debugging (default: 0)" );
static int buggy_sfn_workaround;
module_param(buggy_sfn_workaround,
int ,
0644 );
MODULE_PARM_DESC(buggy_sfn_workaround,
"Enable work-around for buggy SFNs (default: 0)" );
#define dprintk(fmt, arg...) do { \
if (debug) \
printk(KERN_DEBUG pr_fmt("%s: " fmt), \
__func__, ## arg); \
} while (0 )
struct dib7000p_state {
struct dvb_frontend demod;
struct dib7000p_config cfg;
u8 i2c_addr;
struct i2c_adapter *i2c_adap;
struct dibx000_i2c_master i2c_master;
u16 wbd_ref;
u8 current_band;
u32 current_bandwidth;
struct dibx000_agc_config *current_agc;
u32 timf;
u8 div_force_off:1 ;
u8 div_state:1 ;
u16 div_sync_wait;
u8 agc_state;
u16 gpio_dir;
u16 gpio_val;
u8 sfn_workaround_active:1 ;
#define SOC7090 0 x7090
u16 version;
u16 tuner_enable;
struct i2c_adapter dib7090_tuner_adap;
/* for the I2C transfer */
struct i2c_msg msg[2 ];
u8 i2c_write_buffer[4 ];
u8 i2c_read_buffer[2 ];
struct mutex i2c_buffer_lock;
u8 input_mode_mpeg;
/* for DVBv5 stats */
s64 old_ucb;
unsigned long per_jiffies_stats;
unsigned long ber_jiffies_stats;
unsigned long get_stats_time;
};
enum dib7000p_power_mode {
DIB7000P_POWER_ALL = 0 ,
DIB7000P_POWER_ANALOG_ADC,
DIB7000P_POWER_INTERFACE_ONLY,
};
/* dib7090 specific functions */
static int dib7090_set_output_mode(struct dvb_frontend *fe, int mode);
static int dib7090_set_diversity_in(struct dvb_frontend *fe, int onoff);
static void dib7090_setDibTxMux(struct dib7000p_state *state, int mode);
static void dib7090_setHostBusMux(struct dib7000p_state *state, int mode);
static u16 dib7000p_read_word(struct dib7000p_state *state, u16 reg)
{
u16 ret;
if (mutex_lock_interruptible(&state->i2c_buffer_lock) < 0 ) {
dprintk("could not acquire lock\n" );
return 0 ;
}
state->i2c_write_buffer[0 ] = reg >> 8 ;
state->i2c_write_buffer[1 ] = reg & 0 xff;
memset(state->msg, 0 , 2 * sizeof (struct i2c_msg));
state->msg[0 ].addr = state->i2c_addr >> 1 ;
state->msg[0 ].flags = 0 ;
state->msg[0 ].buf = state->i2c_write_buffer;
state->msg[0 ].len = 2 ;
state->msg[1 ].addr = state->i2c_addr >> 1 ;
state->msg[1 ].flags = I2C_M_RD;
state->msg[1 ].buf = state->i2c_read_buffer;
state->msg[1 ].len = 2 ;
if (i2c_transfer(state->i2c_adap, state->msg, 2 ) != 2 )
dprintk("i2c read error on %d\n" , reg);
ret = (state->i2c_read_buffer[0 ] << 8 ) | state->i2c_read_buffer[1 ];
mutex_unlock(&state->i2c_buffer_lock);
return ret;
}
static int dib7000p_write_word(struct dib7000p_state *state, u16 reg, u16 val)
{
int ret;
if (mutex_lock_interruptible(&state->i2c_buffer_lock) < 0 ) {
dprintk("could not acquire lock\n" );
return -EINVAL;
}
state->i2c_write_buffer[0 ] = (reg >> 8 ) & 0 xff;
state->i2c_write_buffer[1 ] = reg & 0 xff;
state->i2c_write_buffer[2 ] = (val >> 8 ) & 0 xff;
state->i2c_write_buffer[3 ] = val & 0 xff;
memset(&state->msg[0 ], 0 , sizeof (struct i2c_msg));
state->msg[0 ].addr = state->i2c_addr >> 1 ;
state->msg[0 ].flags = 0 ;
state->msg[0 ].buf = state->i2c_write_buffer;
state->msg[0 ].len = 4 ;
ret = (i2c_transfer(state->i2c_adap, state->msg, 1 ) != 1 ?
-EREMOTEIO : 0 );
mutex_unlock(&state->i2c_buffer_lock);
return ret;
}
static void dib7000p_write_tab(struct dib7000p_state *state, u16 * buf)
{
u16 l = 0 , r, *n;
n = buf;
l = *n++;
while (l) {
r = *n++;
do {
dib7000p_write_word(state, r, *n++);
r++;
} while (--l);
l = *n++;
}
}
static int dib7000p_set_output_mode(struct dib7000p_state *state, int mode)
{
int ret = 0 ;
u16 outreg, fifo_threshold, smo_mode;
outreg = 0 ;
fifo_threshold = 1792 ;
smo_mode = (dib7000p_read_word(state, 235 ) & 0 x0050) | (1 << 1 );
dprintk("setting output mode for demod %p to %d\n" , &state->demod, mode);
switch (mode) {
case OUTMODE_MPEG2_PAR_GATED_CLK:
outreg = (1 << 10 ); /* 0x0400 */
break ;
case OUTMODE_MPEG2_PAR_CONT_CLK:
outreg = (1 << 10 ) | (1 << 6 ); /* 0x0440 */
break ;
case OUTMODE_MPEG2_SERIAL:
outreg = (1 << 10 ) | (2 << 6 ) | (0 << 1 ); /* 0x0480 */
break ;
case OUTMODE_DIVERSITY:
if (state->cfg.hostbus_diversity)
outreg = (1 << 10 ) | (4 << 6 ); /* 0x0500 */
else
outreg = (1 << 11 );
break ;
case OUTMODE_MPEG2_FIFO:
smo_mode |= (3 << 1 );
fifo_threshold = 512 ;
outreg = (1 << 10 ) | (5 << 6 );
break ;
case OUTMODE_ANALOG_ADC:
outreg = (1 << 10 ) | (3 << 6 );
break ;
case OUTMODE_HIGH_Z:
outreg = 0 ;
break ;
default :
dprintk("Unhandled output_mode passed to be set for demod %p\n" , &state->demod);
break ;
}
if (state->cfg.output_mpeg2_in_188_bytes)
smo_mode |= (1 << 5 );
ret |= dib7000p_write_word(state, 235 , smo_mode);
ret |= dib7000p_write_word(state, 236 , fifo_threshold); /* synchronous fread */
if (state->version != SOC7090)
ret |= dib7000p_write_word(state, 1286 , outreg); /* P_Div_active */
return ret;
}
static int dib7000p_set_diversity_in(struct dvb_frontend *demod, int onoff)
{
struct dib7000p_state *state = demod->demodulator_priv;
if (state->div_force_off) {
dprintk("diversity combination deactivated - forced by COFDM parameters\n" );
onoff = 0 ;
dib7000p_write_word(state, 207 , 0 );
} else
dib7000p_write_word(state, 207 , (state->div_sync_wait << 4 ) | (1 << 2 ) | (2 << 0 ));
state->div_state = (u8) onoff;
if (onoff) {
dib7000p_write_word(state, 204 , 6 );
dib7000p_write_word(state, 205 , 16 );
/* P_dvsy_sync_mode = 0, P_dvsy_sync_enable=1, P_dvcb_comb_mode=2 */
} else {
dib7000p_write_word(state, 204 , 1 );
dib7000p_write_word(state, 205 , 0 );
}
return 0 ;
}
static int dib7000p_set_power_mode(struct dib7000p_state *state, enum dib7000p_power_mode mode)
{
/* by default everything is powered off */
u16 reg_774 = 0 x3fff, reg_775 = 0 xffff, reg_776 = 0 x0007, reg_899 = 0 x0003, reg_1280 = (0 xfe00) | (dib7000p_read_word(state, 1280 ) & 0 x01ff);
/* now, depending on the requested mode, we power on */
switch (mode) {
/* power up everything in the demod */
case DIB7000P_POWER_ALL:
reg_774 = 0 x0000;
reg_775 = 0 x0000;
reg_776 = 0 x0;
reg_899 = 0 x0;
if (state->version == SOC7090)
reg_1280 &= 0 x001f;
else
reg_1280 &= 0 x01ff;
break ;
case DIB7000P_POWER_ANALOG_ADC:
/* dem, cfg, iqc, sad, agc */
reg_774 &= ~((1 << 15 ) | (1 << 14 ) | (1 << 11 ) | (1 << 10 ) | (1 << 9 ));
/* nud */
reg_776 &= ~((1 << 0 ));
/* Dout */
if (state->version != SOC7090)
reg_1280 &= ~((1 << 11 ));
reg_1280 &= ~(1 << 6 );
fallthrough;
case DIB7000P_POWER_INTERFACE_ONLY:
/* just leave power on the control-interfaces: GPIO and (I2C or SDIO) */
/* TODO power up either SDIO or I2C */
if (state->version == SOC7090)
reg_1280 &= ~((1 << 7 ) | (1 << 5 ));
else
reg_1280 &= ~((1 << 14 ) | (1 << 13 ) | (1 << 12 ) | (1 << 10 ));
break ;
/* TODO following stuff is just converted from the dib7000-driver - check when is used what */
}
dib7000p_write_word(state, 774 , reg_774);
dib7000p_write_word(state, 775 , reg_775);
dib7000p_write_word(state, 776 , reg_776);
dib7000p_write_word(state, 1280 , reg_1280);
if (state->version != SOC7090)
dib7000p_write_word(state, 899 , reg_899);
return 0 ;
}
static void dib7000p_set_adc_state(struct dib7000p_state *state, enum dibx000_adc_states no)
{
u16 reg_908 = 0 , reg_909 = 0 ;
u16 reg;
if (state->version != SOC7090) {
reg_908 = dib7000p_read_word(state, 908 );
reg_909 = dib7000p_read_word(state, 909 );
}
switch (no) {
case DIBX000_SLOW_ADC_ON:
if (state->version == SOC7090) {
reg = dib7000p_read_word(state, 1925 );
dib7000p_write_word(state, 1925 , reg | (1 << 4 ) | (1 << 2 )); /* en_slowAdc = 1 & reset_sladc = 1 */
reg = dib7000p_read_word(state, 1925 ); /* read access to make it works... strange ... */
msleep(200 );
dib7000p_write_word(state, 1925 , reg & ~(1 << 4 )); /* en_slowAdc = 1 & reset_sladc = 0 */
reg = dib7000p_read_word(state, 72 ) & ~((0 x3 << 14 ) | (0 x3 << 12 ));
dib7000p_write_word(state, 72 , reg | (1 << 14 ) | (3 << 12 ) | 524 ); /* ref = Vin1 => Vbg ; sel = Vin0 or Vin3 ; (Vin2 = Vcm) */
} else {
reg_909 |= (1 << 1 ) | (1 << 0 );
dib7000p_write_word(state, 909 , reg_909);
reg_909 &= ~(1 << 1 );
}
break ;
case DIBX000_SLOW_ADC_OFF:
if (state->version == SOC7090) {
reg = dib7000p_read_word(state, 1925 );
dib7000p_write_word(state, 1925 , (reg & ~(1 << 2 )) | (1 << 4 )); /* reset_sladc = 1 en_slowAdc = 0 */
} else
reg_909 |= (1 << 1 ) | (1 << 0 );
break ;
case DIBX000_ADC_ON:
reg_908 &= 0 x0fff;
reg_909 &= 0 x0003;
break ;
case DIBX000_ADC_OFF:
reg_908 |= (1 << 14 ) | (1 << 13 ) | (1 << 12 );
reg_909 |= (1 << 5 ) | (1 << 4 ) | (1 << 3 ) | (1 << 2 );
break ;
case DIBX000_VBG_ENABLE:
reg_908 &= ~(1 << 15 );
break ;
case DIBX000_VBG_DISABLE:
reg_908 |= (1 << 15 );
break ;
default :
break ;
}
// dprintk( "908: %x, 909: %x\n", reg_908, reg_909);
reg_909 |= (state->cfg.disable_sample_and_hold & 1 ) << 4 ;
reg_908 |= (state->cfg.enable_current_mirror & 1 ) << 7 ;
if (state->version != SOC7090) {
dib7000p_write_word(state, 908 , reg_908);
dib7000p_write_word(state, 909 , reg_909);
}
}
static int dib7000p_set_bandwidth(struct dib7000p_state *state, u32 bw)
{
u32 timf;
// store the current bandwidth for later use
state->current_bandwidth = bw;
if (state->timf == 0 ) {
dprintk("using default timf\n" );
timf = state->cfg.bw->timf;
} else {
dprintk("using updated timf\n" );
timf = state->timf;
}
timf = timf * (bw / 50 ) / 160 ;
dib7000p_write_word(state, 23 , (u16) ((timf >> 16 ) & 0 xffff));
dib7000p_write_word(state, 24 , (u16) ((timf) & 0 xffff));
return 0 ;
}
static int dib7000p_sad_calib(struct dib7000p_state *state)
{
/* internal */
dib7000p_write_word(state, 73 , (0 << 1 ) | (0 << 0 ));
if (state->version == SOC7090)
dib7000p_write_word(state, 74 , 2048 );
else
dib7000p_write_word(state, 74 , 776 );
/* do the calibration */
dib7000p_write_word(state, 73 , (1 << 0 ));
dib7000p_write_word(state, 73 , (0 << 0 ));
msleep(1 );
return 0 ;
}
static int dib7000p_set_wbd_ref(struct dvb_frontend *demod, u16 value)
{
struct dib7000p_state *state = demod->demodulator_priv;
if (value > 4095 )
value = 4095 ;
state->wbd_ref = value;
return dib7000p_write_word(state, 105 , (dib7000p_read_word(state, 105 ) & 0 xf000) | value);
}
static int dib7000p_get_agc_values(struct dvb_frontend *fe,
u16 *agc_global, u16 *agc1, u16 *agc2, u16 *wbd)
{
struct dib7000p_state *state = fe->demodulator_priv;
if (agc_global != NULL)
*agc_global = dib7000p_read_word(state, 394 );
if (agc1 != NULL)
*agc1 = dib7000p_read_word(state, 392 );
if (agc2 != NULL)
*agc2 = dib7000p_read_word(state, 393 );
if (wbd != NULL)
*wbd = dib7000p_read_word(state, 397 );
return 0 ;
}
static int dib7000p_set_agc1_min(struct dvb_frontend *fe, u16 v)
{
struct dib7000p_state *state = fe->demodulator_priv;
return dib7000p_write_word(state, 108 , v);
}
static void dib7000p_reset_pll(struct dib7000p_state *state)
{
struct dibx000_bandwidth_config *bw = &state->cfg.bw[0 ];
u16 clk_cfg0;
if (state->version == SOC7090) {
dib7000p_write_word(state, 1856 , (!bw->pll_reset << 13 ) | (bw->pll_range << 12 ) | (bw->pll_ratio << 6 ) | (bw->pll_prediv));
while (((dib7000p_read_word(state, 1856 ) >> 15 ) & 0 x1) != 1 )
;
dib7000p_write_word(state, 1857 , dib7000p_read_word(state, 1857 ) | (!bw->pll_bypass << 15 ));
} else {
/* force PLL bypass */
clk_cfg0 = (1 << 15 ) | ((bw->pll_ratio & 0 x3f) << 9 ) |
(bw->modulo << 7 ) | (bw->ADClkSrc << 6 ) | (bw->IO_CLK_en_core << 5 ) | (bw->bypclk_div << 2 ) | (bw->enable_refdiv << 1 ) | (0 << 0 );
dib7000p_write_word(state, 900 , clk_cfg0);
/* P_pll_cfg */
dib7000p_write_word(state, 903 , (bw->pll_prediv << 5 ) | (((bw->pll_ratio >> 6 ) & 0 x3) << 3 ) | (bw->pll_range << 1 ) | bw->pll_reset);
clk_cfg0 = (bw->pll_bypass << 15 ) | (clk_cfg0 & 0 x7fff);
dib7000p_write_word(state, 900 , clk_cfg0);
}
dib7000p_write_word(state, 18 , (u16) (((bw->internal * 1000 ) >> 16 ) & 0 xffff));
dib7000p_write_word(state, 19 , (u16) ((bw->internal * 1000 ) & 0 xffff));
dib7000p_write_word(state, 21 , (u16) ((bw->ifreq >> 16 ) & 0 xffff));
dib7000p_write_word(state, 22 , (u16) ((bw->ifreq) & 0 xffff));
dib7000p_write_word(state, 72 , bw->sad_cfg);
}
static u32 dib7000p_get_internal_freq(struct dib7000p_state *state)
{
u32 internal = (u32) dib7000p_read_word(state, 18 ) << 16 ;
internal |= (u32) dib7000p_read_word(state, 19 );
internal /= 1000 ;
return internal;
}
static int dib7000p_update_pll(struct dvb_frontend *fe, struct dibx000_bandwidth_config *bw)
{
struct dib7000p_state *state = fe->demodulator_priv;
u16 reg_1857, reg_1856 = dib7000p_read_word(state, 1856 );
u8 loopdiv, prediv;
u32 internal, xtal;
/* get back old values */
prediv = reg_1856 & 0 x3f;
loopdiv = (reg_1856 >> 6 ) & 0 x3f;
if (loopdiv && bw && (bw->pll_prediv != prediv || bw->pll_ratio != loopdiv)) {
dprintk("Updating pll (prediv: old = %d new = %d ; loopdiv : old = %d new = %d)\n" , prediv, bw->pll_prediv, loopdiv, bw->pll_ratio);
reg_1856 &= 0 xf000;
reg_1857 = dib7000p_read_word(state, 1857 );
dib7000p_write_word(state, 1857 , reg_1857 & ~(1 << 15 ));
dib7000p_write_word(state, 1856 , reg_1856 | ((bw->pll_ratio & 0 x3f) << 6 ) | (bw->pll_prediv & 0 x3f));
/* write new system clk into P_sec_len */
internal = dib7000p_get_internal_freq(state);
xtal = (internal / loopdiv) * prediv;
internal = 1000 * (xtal / bw->pll_prediv) * bw->pll_ratio; /* new internal */
dib7000p_write_word(state, 18 , (u16) ((internal >> 16 ) & 0 xffff));
dib7000p_write_word(state, 19 , (u16) (internal & 0 xffff));
dib7000p_write_word(state, 1857 , reg_1857 | (1 << 15 ));
while (((dib7000p_read_word(state, 1856 ) >> 15 ) & 0 x1) != 1 )
dprintk("Waiting for PLL to lock\n" );
return 0 ;
}
return -EIO;
}
static int dib7000p_reset_gpio(struct dib7000p_state *st)
{
/* reset the GPIOs */
dprintk("gpio dir: %x: val: %x, pwm_pos: %x\n" , st->gpio_dir, st->gpio_val, st->cfg.gpio_pwm_pos);
dib7000p_write_word(st, 1029 , st->gpio_dir);
dib7000p_write_word(st, 1030 , st->gpio_val);
/* TODO 1031 is P_gpio_od */
dib7000p_write_word(st, 1032 , st->cfg.gpio_pwm_pos);
dib7000p_write_word(st, 1037 , st->cfg.pwm_freq_div);
return 0 ;
}
static int dib7000p_cfg_gpio(struct dib7000p_state *st, u8 num, u8 dir, u8 val)
{
st->gpio_dir = dib7000p_read_word(st, 1029 );
st->gpio_dir &= ~(1 << num); /* reset the direction bit */
st->gpio_dir |= (dir & 0 x1) << num; /* set the new direction */
dib7000p_write_word(st, 1029 , st->gpio_dir);
st->gpio_val = dib7000p_read_word(st, 1030 );
st->gpio_val &= ~(1 << num); /* reset the direction bit */
st->gpio_val |= (val & 0 x01) << num; /* set the new value */
dib7000p_write_word(st, 1030 , st->gpio_val);
return 0 ;
}
static int dib7000p_set_gpio(struct dvb_frontend *demod, u8 num, u8 dir, u8 val)
{
struct dib7000p_state *state = demod->demodulator_priv;
return dib7000p_cfg_gpio(state, num, dir, val);
}
static u16 dib7000p_defaults[] = {
// auto search configuration
3 , 2 ,
0 x0004,
(1 <<3 )|(1 <<11 )|(1 <<12 )|(1 <<13 ),
0 x0814, /* Equal Lock */
12 , 6 ,
0 x001b,
0 x7740,
0 x005b,
0 x8d80,
0 x01c9,
0 xc380,
0 x0000,
0 x0080,
0 x0000,
0 x0090,
0 x0001,
0 xd4c0,
1 , 26 ,
0 x6680,
/* set ADC level to -16 */
11 , 79 ,
(1 << 13 ) - 825 - 117 ,
(1 << 13 ) - 837 - 117 ,
(1 << 13 ) - 811 - 117 ,
(1 << 13 ) - 766 - 117 ,
(1 << 13 ) - 737 - 117 ,
(1 << 13 ) - 693 - 117 ,
(1 << 13 ) - 648 - 117 ,
(1 << 13 ) - 619 - 117 ,
(1 << 13 ) - 575 - 117 ,
(1 << 13 ) - 531 - 117 ,
(1 << 13 ) - 501 - 117 ,
1 , 142 ,
0 x0410,
/* disable power smoothing */
8 , 145 ,
0 ,
0 ,
0 ,
0 ,
0 ,
0 ,
0 ,
0 ,
1 , 154 ,
1 << 13 ,
1 , 168 ,
0 x0ccd,
1 , 183 ,
0 x200f,
1 , 212 ,
0 x169,
5 , 187 ,
0 x023d,
0 x00a4,
0 x00a4,
0 x7ff0,
0 x3ccc,
1 , 198 ,
0 x800,
1 , 222 ,
0 x0010,
1 , 235 ,
0 x0062,
0 ,
};
static void dib7000p_reset_stats(struct dvb_frontend *fe);
static int dib7000p_demod_reset(struct dib7000p_state *state)
{
dib7000p_set_power_mode(state, DIB7000P_POWER_ALL);
if (state->version == SOC7090)
dibx000_reset_i2c_master(&state->i2c_master);
dib7000p_set_adc_state(state, DIBX000_VBG_ENABLE);
/* restart all parts */
dib7000p_write_word(state, 770 , 0 xffff);
dib7000p_write_word(state, 771 , 0 xffff);
dib7000p_write_word(state, 772 , 0 x001f);
dib7000p_write_word(state, 1280 , 0 x001f - ((1 << 4 ) | (1 << 3 )));
dib7000p_write_word(state, 770 , 0 );
dib7000p_write_word(state, 771 , 0 );
dib7000p_write_word(state, 772 , 0 );
dib7000p_write_word(state, 1280 , 0 );
if (state->version != SOC7090) {
dib7000p_write_word(state, 898 , 0 x0003);
dib7000p_write_word(state, 898 , 0 );
}
/* default */
dib7000p_reset_pll(state);
if (dib7000p_reset_gpio(state) != 0 )
dprintk("GPIO reset was not successful.\n" );
if (state->version == SOC7090) {
dib7000p_write_word(state, 899 , 0 );
/* impulse noise */
dib7000p_write_word(state, 42 , (1 <<5 ) | 3 ); /* P_iqc_thsat_ipc = 1 ; P_iqc_win2 = 3 */
dib7000p_write_word(state, 43 , 0 x2d4); /*-300 fag P_iqc_dect_min = -280 */
dib7000p_write_word(state, 44 , 300 ); /* 300 fag P_iqc_dect_min = +280 */
dib7000p_write_word(state, 273 , (0 <<6 ) | 30 );
}
if (dib7000p_set_output_mode(state, OUTMODE_HIGH_Z) != 0 )
dprintk("OUTPUT_MODE could not be reset.\n" );
dib7000p_set_adc_state(state, DIBX000_SLOW_ADC_ON);
dib7000p_sad_calib(state);
dib7000p_set_adc_state(state, DIBX000_SLOW_ADC_OFF);
/* unforce divstr regardless whether i2c enumeration was done or not */
dib7000p_write_word(state, 1285 , dib7000p_read_word(state, 1285 ) & ~(1 << 1 ));
dib7000p_set_bandwidth(state, 8000 );
if (state->version == SOC7090) {
dib7000p_write_word(state, 36 , 0 x0755);/* P_iqc_impnc_on =1 & P_iqc_corr_inh = 1 for impulsive noise */
} else {
if (state->cfg.tuner_is_baseband)
dib7000p_write_word(state, 36 , 0 x0755);
else
dib7000p_write_word(state, 36 , 0 x1f55);
}
dib7000p_write_tab(state, dib7000p_defaults);
if (state->version != SOC7090) {
dib7000p_write_word(state, 901 , 0 x0006);
dib7000p_write_word(state, 902 , (3 << 10 ) | (1 << 6 ));
dib7000p_write_word(state, 905 , 0 x2c8e);
}
dib7000p_set_power_mode(state, DIB7000P_POWER_INTERFACE_ONLY);
return 0 ;
}
static void dib7000p_pll_clk_cfg(struct dib7000p_state *state)
{
u16 tmp = 0 ;
tmp = dib7000p_read_word(state, 903 );
dib7000p_write_word(state, 903 , (tmp | 0 x1));
tmp = dib7000p_read_word(state, 900 );
dib7000p_write_word(state, 900 , (tmp & 0 x7fff) | (1 << 6 ));
}
static void dib7000p_restart_agc(struct dib7000p_state *state)
{
// P_restart_iqc & P_restart_agc
dib7000p_write_word(state, 770 , (1 << 11 ) | (1 << 9 ));
dib7000p_write_word(state, 770 , 0 x0000);
}
static int dib7000p_update_lna(struct dib7000p_state *state)
{
u16 dyn_gain;
if (state->cfg.update_lna) {
dyn_gain = dib7000p_read_word(state, 394 );
if (state->cfg.update_lna(&state->demod, dyn_gain)) {
dib7000p_restart_agc(state);
return 1 ;
}
}
return 0 ;
}
static int dib7000p_set_agc_config(struct dib7000p_state *state, u8 band)
{
struct dibx000_agc_config *agc = NULL;
int i;
if (state->current_band == band && state->current_agc != NULL)
return 0 ;
state->current_band = band;
for (i = 0 ; i < state->cfg.agc_config_count; i++)
if (state->cfg.agc[i].band_caps & band) {
agc = &state->cfg.agc[i];
break ;
}
if (agc == NULL) {
dprintk("no valid AGC configuration found for band 0x%02x\n" , band);
return -EINVAL;
}
state->current_agc = agc;
/* AGC */
dib7000p_write_word(state, 75 , agc->setup);
dib7000p_write_word(state, 76 , agc->inv_gain);
dib7000p_write_word(state, 77 , agc->time_stabiliz);
dib7000p_write_word(state, 100 , (agc->alpha_level << 12 ) | agc->thlock);
// Demod AGC loop configuration
dib7000p_write_word(state, 101 , (agc->alpha_mant << 5 ) | agc->alpha_exp);
dib7000p_write_word(state, 102 , (agc->beta_mant << 6 ) | agc->beta_exp);
/* AGC continued */
dprintk("WBD: ref: %d, sel: %d, active: %d, alpha: %d\n" ,
state->wbd_ref != 0 ? state->wbd_ref : agc->wbd_ref, agc->wbd_sel, !agc->perform_agc_softsplit, agc->wbd_sel);
if (state->wbd_ref != 0 )
dib7000p_write_word(state, 105 , (agc->wbd_inv << 12 ) | state->wbd_ref);
else
dib7000p_write_word(state, 105 , (agc->wbd_inv << 12 ) | agc->wbd_ref);
dib7000p_write_word(state, 106 , (agc->wbd_sel << 13 ) | (agc->wbd_alpha << 9 ) | (agc->perform_agc_softsplit << 8 ));
dib7000p_write_word(state, 107 , agc->agc1_max);
dib7000p_write_word(state, 108 , agc->agc1_min);
dib7000p_write_word(state, 109 , agc->agc2_max);
dib7000p_write_word(state, 110 , agc->agc2_min);
dib7000p_write_word(state, 111 , (agc->agc1_pt1 << 8 ) | agc->agc1_pt2);
dib7000p_write_word(state, 112 , agc->agc1_pt3);
dib7000p_write_word(state, 113 , (agc->agc1_slope1 << 8 ) | agc->agc1_slope2);
dib7000p_write_word(state, 114 , (agc->agc2_pt1 << 8 ) | agc->agc2_pt2);
dib7000p_write_word(state, 115 , (agc->agc2_slope1 << 8 ) | agc->agc2_slope2);
return 0 ;
}
static int dib7000p_set_dds(struct dib7000p_state *state, s32 offset_khz)
{
u32 internal = dib7000p_get_internal_freq(state);
s32 unit_khz_dds_val;
u32 abs_offset_khz = abs(offset_khz);
u32 dds = state->cfg.bw->ifreq & 0 x1ffffff;
u8 invert = !!(state->cfg.bw->ifreq & (1 << 25 ));
if (internal == 0 ) {
pr_warn("DIB7000P: dib7000p_get_internal_freq returned 0\n" );
return -1 ;
}
/* 2**26 / Fsampling is the unit 1KHz offset */
unit_khz_dds_val = 67108864 / (internal);
dprintk("setting a frequency offset of %dkHz internal freq = %d invert = %d\n" , offset_khz, internal, invert);
if (offset_khz < 0 )
unit_khz_dds_val *= -1 ;
/* IF tuner */
if (invert)
dds -= (abs_offset_khz * unit_khz_dds_val); /* /100 because of /100 on the unit_khz_dds_val line calc for better accuracy */
else
dds += (abs_offset_khz * unit_khz_dds_val);
if (abs_offset_khz <= (internal / 2 )) { /* Max dds offset is the half of the demod freq */
dib7000p_write_word(state, 21 , (u16) (((dds >> 16 ) & 0 x1ff) | (0 << 10 ) | (invert << 9 )));
dib7000p_write_word(state, 22 , (u16) (dds & 0 xffff));
}
return 0 ;
}
static int dib7000p_agc_startup(struct dvb_frontend *demod)
{
struct dtv_frontend_properties *ch = &demod->dtv_property_cache;
struct dib7000p_state *state = demod->demodulator_priv;
int ret = -1 ;
u8 *agc_state = &state->agc_state;
u8 agc_split;
u16 reg;
u32 upd_demod_gain_period = 0 x1000;
s32 frequency_offset = 0 ;
switch (state->agc_state) {
case 0 :
dib7000p_set_power_mode(state, DIB7000P_POWER_ALL);
if (state->version == SOC7090) {
reg = dib7000p_read_word(state, 0 x79b) & 0 xff00;
dib7000p_write_word(state, 0 x79a, upd_demod_gain_period & 0 xFFFF); /* lsb */
dib7000p_write_word(state, 0 x79b, reg | (1 << 14 ) | ((upd_demod_gain_period >> 16 ) & 0 xFF));
/* enable adc i & q */
reg = dib7000p_read_word(state, 0 x780);
dib7000p_write_word(state, 0 x780, (reg | (0 x3)) & (~(1 << 7 )));
} else {
dib7000p_set_adc_state(state, DIBX000_ADC_ON);
dib7000p_pll_clk_cfg(state);
}
if (dib7000p_set_agc_config(state, BAND_OF_FREQUENCY(ch->frequency / 1000 )) != 0 )
return -1 ;
if (demod->ops.tuner_ops.get_frequency) {
u32 frequency_tuner;
demod->ops.tuner_ops.get_frequency(demod, &frequency_tuner);
frequency_offset = (s32)frequency_tuner / 1000 - ch->frequency / 1000 ;
}
if (dib7000p_set_dds(state, frequency_offset) < 0 )
return -1 ;
ret = 7 ;
(*agc_state)++;
break ;
case 1 :
if (state->cfg.agc_control)
state->cfg.agc_control(&state->demod, 1 );
dib7000p_write_word(state, 78 , 32768 );
if (!state->current_agc->perform_agc_softsplit) {
/* we are using the wbd - so slow AGC startup */
/* force 0 split on WBD and restart AGC */
dib7000p_write_word(state, 106 , (state->current_agc->wbd_sel << 13 ) | (state->current_agc->wbd_alpha << 9 ) | (1 << 8 ));
(*agc_state)++;
ret = 5 ;
} else {
/* default AGC startup */
(*agc_state) = 4 ;
/* wait AGC rough lock time */
ret = 7 ;
}
dib7000p_restart_agc(state);
break ;
case 2 : /* fast split search path after 5sec */
dib7000p_write_word(state, 75 , state->current_agc->setup | (1 << 4 )); /* freeze AGC loop */
dib7000p_write_word(state, 106 , (state->current_agc->wbd_sel << 13 ) | (2 << 9 ) | (0 << 8 )); /* fast split search 0.25kHz */
(*agc_state)++;
ret = 14 ;
break ;
case 3 : /* split search ended */
agc_split = (u8) dib7000p_read_word(state, 396 ); /* store the split value for the next time */
dib7000p_write_word(state, 78 , dib7000p_read_word(state, 394 )); /* set AGC gain start value */
dib7000p_write_word(state, 75 , state->current_agc->setup); /* std AGC loop */
dib7000p_write_word(state, 106 , (state->current_agc->wbd_sel << 13 ) | (state->current_agc->wbd_alpha << 9 ) | agc_split); /* standard split search */
dib7000p_restart_agc(state);
dprintk("SPLIT %p: %u\n" , demod, agc_split);
(*agc_state)++;
ret = 5 ;
break ;
case 4 : /* LNA startup */
ret = 7 ;
if (dib7000p_update_lna(state))
ret = 5 ;
else
(*agc_state)++;
break ;
case 5 :
if (state->cfg.agc_control)
state->cfg.agc_control(&state->demod, 0 );
(*agc_state)++;
break ;
default :
break ;
}
return ret;
}
static void dib7000p_update_timf(struct dib7000p_state *state)
{
u32 timf = (dib7000p_read_word(state, 427 ) << 16 ) | dib7000p_read_word(state, 428 );
state->timf = timf * 160 / (state->current_bandwidth / 50 );
dib7000p_write_word(state, 23 , (u16) (timf >> 16 ));
dib7000p_write_word(state, 24 , (u16) (timf & 0 xffff));
dprintk("updated timf_frequency: %d (default: %d)\n" , state->timf, state->cfg.bw->timf);
}
static u32 dib7000p_ctrl_timf(struct dvb_frontend *fe, u8 op, u32 timf)
{
struct dib7000p_state *state = fe->demodulator_priv;
switch (op) {
case DEMOD_TIMF_SET:
state->timf = timf;
break ;
case DEMOD_TIMF_UPDATE:
dib7000p_update_timf(state);
break ;
case DEMOD_TIMF_GET:
break ;
}
dib7000p_set_bandwidth(state, state->current_bandwidth);
return state->timf;
}
static void dib7000p_set_channel(struct dib7000p_state *state,
struct dtv_frontend_properties *ch, u8 seq)
{
u16 value, est[4 ];
dib7000p_set_bandwidth(state, BANDWIDTH_TO_KHZ(ch->bandwidth_hz));
/* nfft, guard, qam, alpha */
value = 0 ;
switch (ch->transmission_mode) {
case TRANSMISSION_MODE_2K:
value |= (0 << 7 );
break ;
case TRANSMISSION_MODE_4K:
value |= (2 << 7 );
break ;
default :
case TRANSMISSION_MODE_8K:
value |= (1 << 7 );
break ;
}
switch (ch->guard_interval) {
case GUARD_INTERVAL_1_32:
value |= (0 << 5 );
break ;
case GUARD_INTERVAL_1_16:
value |= (1 << 5 );
break ;
case GUARD_INTERVAL_1_4:
value |= (3 << 5 );
break ;
default :
case GUARD_INTERVAL_1_8:
value |= (2 << 5 );
break ;
}
switch (ch->modulation) {
case QPSK:
value |= (0 << 3 );
break ;
case QAM_16:
value |= (1 << 3 );
break ;
default :
case QAM_64:
value |= (2 << 3 );
break ;
}
switch (HIERARCHY_1) {
case HIERARCHY_2:
value |= 2 ;
break ;
case HIERARCHY_4:
value |= 4 ;
break ;
default :
case HIERARCHY_1:
value |= 1 ;
break ;
}
dib7000p_write_word(state, 0 , value);
dib7000p_write_word(state, 5 , (seq << 4 ) | 1 ); /* do not force tps, search list 0 */
/* P_dintl_native, P_dintlv_inv, P_hrch, P_code_rate, P_select_hp */
value = 0 ;
if (1 != 0 )
value |= (1 << 6 );
if (ch->hierarchy == 1 )
value |= (1 << 4 );
if (1 == 1 )
value |= 1 ;
switch ((ch->hierarchy == 0 || 1 == 1 ) ? ch->code_rate_HP : ch->code_rate_LP) {
case FEC_2_3:
value |= (2 << 1 );
break ;
case FEC_3_4:
value |= (3 << 1 );
break ;
case FEC_5_6:
value |= (5 << 1 );
break ;
case FEC_7_8:
value |= (7 << 1 );
break ;
default :
case FEC_1_2:
value |= (1 << 1 );
break ;
}
dib7000p_write_word(state, 208 , value);
/* offset loop parameters */
dib7000p_write_word(state, 26 , 0 x6680);
dib7000p_write_word(state, 32 , 0 x0003);
dib7000p_write_word(state, 29 , 0 x1273);
dib7000p_write_word(state, 33 , 0 x0005);
/* P_dvsy_sync_wait */
switch (ch->transmission_mode) {
case TRANSMISSION_MODE_8K:
value = 256 ;
break ;
case TRANSMISSION_MODE_4K:
value = 128 ;
break ;
case TRANSMISSION_MODE_2K:
default :
value = 64 ;
break ;
}
switch (ch->guard_interval) {
case GUARD_INTERVAL_1_16:
value *= 2 ;
break ;
case GUARD_INTERVAL_1_8:
value *= 4 ;
break ;
case GUARD_INTERVAL_1_4:
value *= 8 ;
break ;
default :
case GUARD_INTERVAL_1_32:
value *= 1 ;
break ;
}
if (state->cfg.diversity_delay == 0 )
state->div_sync_wait = (value * 3 ) / 2 + 48 ;
else
state->div_sync_wait = (value * 3 ) / 2 + state->cfg.diversity_delay;
/* deactivate the possibility of diversity reception if extended interleaver */
state->div_force_off = !1 && ch->transmission_mode != TRANSMISSION_MODE_8K;
dib7000p_set_diversity_in(&state->demod, state->div_state);
/* channel estimation fine configuration */
switch (ch->modulation) {
case QAM_64:
est[0 ] = 0 x0148; /* P_adp_regul_cnt 0.04 */
est[1 ] = 0 xfff0; /* P_adp_noise_cnt -0.002 */
est[2 ] = 0 x00a4; /* P_adp_regul_ext 0.02 */
est[3 ] = 0 xfff8; /* P_adp_noise_ext -0.001 */
break ;
case QAM_16:
est[0 ] = 0 x023d; /* P_adp_regul_cnt 0.07 */
est[1 ] = 0 xffdf; /* P_adp_noise_cnt -0.004 */
est[2 ] = 0 x00a4; /* P_adp_regul_ext 0.02 */
est[3 ] = 0 xfff0; /* P_adp_noise_ext -0.002 */
break ;
default :
est[0 ] = 0 x099a; /* P_adp_regul_cnt 0.3 */
est[1 ] = 0 xffae; /* P_adp_noise_cnt -0.01 */
est[2 ] = 0 x0333; /* P_adp_regul_ext 0.1 */
est[3 ] = 0 xfff8; /* P_adp_noise_ext -0.002 */
break ;
}
for (value = 0 ; value < 4 ; value++)
dib7000p_write_word(state, 187 + value, est[value]);
}
static int dib7000p_autosearch_start(struct dvb_frontend *demod)
{
struct dtv_frontend_properties *ch = &demod->dtv_property_cache;
struct dib7000p_state *state = demod->demodulator_priv;
struct dtv_frontend_properties schan;
u32 value, factor;
u32 internal = dib7000p_get_internal_freq(state);
schan = *ch;
schan.modulation = QAM_64;
schan.guard_interval = GUARD_INTERVAL_1_32;
schan.transmission_mode = TRANSMISSION_MODE_8K;
schan.code_rate_HP = FEC_2_3;
schan.code_rate_LP = FEC_3_4;
schan.hierarchy = 0 ;
dib7000p_set_channel(state, &schan, 7 );
factor = BANDWIDTH_TO_KHZ(ch->bandwidth_hz);
if (factor >= 5000 ) {
if (state->version == SOC7090)
factor = 2 ;
else
factor = 1 ;
} else
factor = 6 ;
value = 30 * internal * factor;
dib7000p_write_word(state, 6 , (u16) ((value >> 16 ) & 0 xffff));
dib7000p_write_word(state, 7 , (u16) (value & 0 xffff));
value = 100 * internal * factor;
dib7000p_write_word(state, 8 , (u16) ((value >> 16 ) & 0 xffff));
dib7000p_write_word(state, 9 , (u16) (value & 0 xffff));
value = 500 * internal * factor;
dib7000p_write_word(state, 10 , (u16) ((value >> 16 ) & 0 xffff));
dib7000p_write_word(state, 11 , (u16) (value & 0 xffff));
value = dib7000p_read_word(state, 0 );
dib7000p_write_word(state, 0 , (u16) ((1 << 9 ) | value));
dib7000p_read_word(state, 1284 );
dib7000p_write_word(state, 0 , (u16) value);
return 0 ;
}
static int dib7000p_autosearch_is_irq(struct dvb_frontend *demod)
{
struct dib7000p_state *state = demod->demodulator_priv;
u16 irq_pending = dib7000p_read_word(state, 1284 );
if (irq_pending & 0 x1)
return 1 ;
if (irq_pending & 0 x2)
return 2 ;
return 0 ;
}
static void dib7000p_spur_protect(struct dib7000p_state *state, u32 rf_khz, u32 bw)
{
static const s16 notch[] = { 16143 , 14402 , 12238 , 9713 , 6902 , 3888 , 759 , -2392 };
static const u8 sine[] = { 0 , 2 , 3 , 5 , 6 , 8 , 9 , 11 , 13 , 14 , 16 , 17 , 19 , 20 , 22 ,
24 , 25 , 27 , 28 , 30 , 31 , 33 , 34 , 36 , 38 , 39 , 41 , 42 , 44 , 45 , 47 , 48 , 50 , 51 ,
53 , 55 , 56 , 58 , 59 , 61 , 62 , 64 , 65 , 67 , 68 , 70 , 71 , 73 , 74 , 76 , 77 , 79 , 80 ,
82 , 83 , 85 , 86 , 88 , 89 , 91 , 92 , 94 , 95 , 97 , 98 , 99 , 101 , 102 , 104 , 105 ,
107 , 108 , 109 , 111 , 112 , 114 , 115 , 117 , 118 , 119 , 121 , 122 , 123 , 125 , 126 ,
128 , 129 , 130 , 132 , 133 , 134 , 136 , 137 , 138 , 140 , 141 , 142 , 144 , 145 , 146 ,
147 , 149 , 150 , 151 , 152 , 154 , 155 , 156 , 157 , 159 , 160 , 161 , 162 , 164 , 165 ,
166 , 167 , 168 , 170 , 171 , 172 , 173 , 174 , 175 , 177 , 178 , 179 , 180 , 181 , 182 ,
183 , 184 , 185 , 186 , 188 , 189 , 190 , 191 , 192 , 193 , 194 , 195 , 196 , 197 , 198 ,
199 , 200 , 201 , 202 , 203 , 204 , 205 , 206 , 207 , 207 , 208 , 209 , 210 , 211 , 212 ,
213 , 214 , 215 , 215 , 216 , 217 , 218 , 219 , 220 , 220 , 221 , 222 , 223 , 224 , 224 ,
225 , 226 , 227 , 227 , 228 , 229 , 229 , 230 , 231 , 231 , 232 , 233 , 233 , 234 , 235 ,
235 , 236 , 237 , 237 , 238 , 238 , 239 , 239 , 240 , 241 , 241 , 242 , 242 , 243 , 243 ,
244 , 244 , 245 , 245 , 245 , 246 , 246 , 247 , 247 , 248 , 248 , 248 , 249 , 249 , 249 ,
250 , 250 , 250 , 251 , 251 , 251 , 252 , 252 , 252 , 252 , 253 , 253 , 253 , 253 , 254 ,
254 , 254 , 254 , 254 , 255 , 255 , 255 , 255 , 255 , 255 , 255 , 255 , 255 , 255 , 255 ,
255 , 255 , 255 , 255 , 255 , 255
};
u32 xtal = state->cfg.bw->xtal_hz / 1000 ;
int f_rel = DIV_ROUND_CLOSEST(rf_khz, xtal) * xtal - rf_khz;
int k;
int coef_re[8 ], coef_im[8 ];
int bw_khz = bw;
u32 pha;
dprintk("relative position of the Spur: %dk (RF: %dk, XTAL: %dk)\n" , f_rel, rf_khz, xtal);
if (f_rel < -bw_khz / 2 || f_rel > bw_khz / 2 )
return ;
bw_khz /= 100 ;
dib7000p_write_word(state, 142 , 0 x0610);
for (k = 0 ; k < 8 ; k++) {
pha = ((f_rel * (k + 1 ) * 112 * 80 / bw_khz) / 1000 ) & 0 x3ff;
if (pha == 0 ) {
coef_re[k] = 256 ;
coef_im[k] = 0 ;
} else if (pha < 256 ) {
coef_re[k] = sine[256 - (pha & 0 xff)];
coef_im[k] = sine[pha & 0 xff];
} else if (pha == 256 ) {
coef_re[k] = 0 ;
coef_im[k] = 256 ;
} else if (pha < 512 ) {
coef_re[k] = -sine[pha & 0 xff];
coef_im[k] = sine[256 - (pha & 0 xff)];
} else if (pha == 512 ) {
coef_re[k] = -256 ;
coef_im[k] = 0 ;
} else if (pha < 768 ) {
coef_re[k] = -sine[256 - (pha & 0 xff)];
coef_im[k] = -sine[pha & 0 xff];
} else if (pha == 768 ) {
coef_re[k] = 0 ;
coef_im[k] = -256 ;
} else {
coef_re[k] = sine[pha & 0 xff];
coef_im[k] = -sine[256 - (pha & 0 xff)];
}
coef_re[k] *= notch[k];
coef_re[k] += (1 << 14 );
if (coef_re[k] >= (1 << 24 ))
coef_re[k] = (1 << 24 ) - 1 ;
coef_re[k] /= (1 << 15 );
coef_im[k] *= notch[k];
coef_im[k] += (1 << 14 );
if (coef_im[k] >= (1 << 24 ))
coef_im[k] = (1 << 24 ) - 1 ;
coef_im[k] /= (1 << 15 );
dprintk("PALF COEF: %d re: %d im: %d\n" , k, coef_re[k], coef_im[k]);
dib7000p_write_word(state, 143 , (0 << 14 ) | (k << 10 ) | (coef_re[k] & 0 x3ff));
dib7000p_write_word(state, 144 , coef_im[k] & 0 x3ff);
dib7000p_write_word(state, 143 , (1 << 14 ) | (k << 10 ) | (coef_re[k] & 0 x3ff));
}
dib7000p_write_word(state, 143 , 0 );
}
static int dib7000p_tune(struct dvb_frontend *demod)
{
struct dtv_frontend_properties *ch = &demod->dtv_property_cache;
struct dib7000p_state *state = demod->demodulator_priv;
u16 tmp = 0 ;
if (ch != NULL)
dib7000p_set_channel(state, ch, 0 );
else
return -EINVAL;
// restart demod
dib7000p_write_word(state, 770 , 0 x4000);
dib7000p_write_word(state, 770 , 0 x0000);
msleep(45 );
/* P_ctrl_inh_cor=0, P_ctrl_alpha_cor=4, P_ctrl_inh_isi=0, P_ctrl_alpha_isi=3, P_ctrl_inh_cor4=1, P_ctrl_alpha_cor4=3 */
tmp = (0 << 14 ) | (4 << 10 ) | (0 << 9 ) | (3 << 5 ) | (1 << 4 ) | (0 x3);
if (state->sfn_workaround_active) {
dprintk("SFN workaround is active\n" );
tmp |= (1 << 9 );
dib7000p_write_word(state, 166 , 0 x4000);
} else {
dib7000p_write_word(state, 166 , 0 x0000);
}
dib7000p_write_word(state, 29 , tmp);
// never achieved a lock with that bandwidth so far - wait for osc-freq to update
if (state->timf == 0 )
msleep(200 );
/* offset loop parameters */
/* P_timf_alpha, P_corm_alpha=6, P_corm_thres=0x80 */
tmp = (6 << 8 ) | 0 x80;
switch (ch->transmission_mode) {
case TRANSMISSION_MODE_2K:
tmp |= (2 << 12 );
break ;
case TRANSMISSION_MODE_4K:
tmp |= (3 << 12 );
break ;
default :
case TRANSMISSION_MODE_8K:
tmp |= (4 << 12 );
break ;
}
dib7000p_write_word(state, 26 , tmp); /* timf_a(6xxx) */
/* P_ctrl_freeze_pha_shift=0, P_ctrl_pha_off_max */
tmp = (0 << 4 );
switch (ch->transmission_mode) {
case TRANSMISSION_MODE_2K:
tmp |= 0 x6;
break ;
case TRANSMISSION_MODE_4K:
tmp |= 0 x7;
break ;
default :
case TRANSMISSION_MODE_8K:
tmp |= 0 x8;
break ;
}
dib7000p_write_word(state, 32 , tmp);
/* P_ctrl_sfreq_inh=0, P_ctrl_sfreq_step */
tmp = (0 << 4 );
switch (ch->transmission_mode) {
case TRANSMISSION_MODE_2K:
tmp |= 0 x6;
break ;
case TRANSMISSION_MODE_4K:
tmp |= 0 x7;
break ;
default :
case TRANSMISSION_MODE_8K:
tmp |= 0 x8;
break ;
}
dib7000p_write_word(state, 33 , tmp);
tmp = dib7000p_read_word(state, 509 );
if (!((tmp >> 6 ) & 0 x1)) {
/* restart the fec */
tmp = dib7000p_read_word(state, 771 );
dib7000p_write_word(state, 771 , tmp | (1 << 1 ));
dib7000p_write_word(state, 771 , tmp);
msleep(40 );
tmp = dib7000p_read_word(state, 509 );
}
// we achieved a lock - it's time to update the osc freq
if ((tmp >> 6 ) & 0 x1) {
dib7000p_update_timf(state);
/* P_timf_alpha += 2 */
tmp = dib7000p_read_word(state, 26 );
dib7000p_write_word(state, 26 , (tmp & ~(0 xf << 12 )) | ((((tmp >> 12 ) & 0 xf) + 5 ) << 12 ));
}
if (state->cfg.spur_protect)
dib7000p_spur_protect(state, ch->frequency / 1000 , BANDWIDTH_TO_KHZ(ch->bandwidth_hz));
dib7000p_set_bandwidth(state, BANDWIDTH_TO_KHZ(ch->bandwidth_hz));
dib7000p_reset_stats(demod);
return 0 ;
}
static int dib7000p_wakeup(struct dvb_frontend *demod)
{
struct dib7000p_state *state = demod->demodulator_priv;
dib7000p_set_power_mode(state, DIB7000P_POWER_ALL);
dib7000p_set_adc_state(state, DIBX000_SLOW_ADC_ON);
if (state->version == SOC7090)
dib7000p_sad_calib(state);
return 0 ;
}
static int dib7000p_sleep(struct dvb_frontend *demod)
{
struct dib7000p_state *state = demod->demodulator_priv;
if (state->version == SOC7090)
return dib7000p_set_power_mode(state, DIB7000P_POWER_INTERFACE_ONLY);
return dib7000p_set_output_mode(state, OUTMODE_HIGH_Z) | dib7000p_set_power_mode(state, DIB7000P_POWER_INTERFACE_ONLY);
}
static int dib7000p_identify(struct dib7000p_state *st)
{
u16 value;
dprintk("checking demod on I2C address: %d (%x)\n" , st->i2c_addr, st->i2c_addr);
if ((value = dib7000p_read_word(st, 768 )) != 0 x01b3) {
dprintk("wrong Vendor ID (read=0x%x)\n" , value);
return -EREMOTEIO;
}
if ((value = dib7000p_read_word(st, 769 )) != 0 x4000) {
dprintk("wrong Device ID (%x)\n" , value);
return -EREMOTEIO;
}
return 0 ;
}
static int dib7000p_get_frontend(struct dvb_frontend *fe,
struct dtv_frontend_properties *fep)
{
struct dib7000p_state *state = fe->demodulator_priv;
u16 tps = dib7000p_read_word(state, 463 );
fep->inversion = INVERSION_AUTO;
fep->bandwidth_hz = BANDWIDTH_TO_HZ(state->current_bandwidth);
switch ((tps >> 8 ) & 0 x3) {
case 0 :
fep->transmission_mode = TRANSMISSION_MODE_2K;
break ;
case 1 :
fep->transmission_mode = TRANSMISSION_MODE_8K;
break ;
/* case 2: fep->transmission_mode = TRANSMISSION_MODE_4K; break; */
}
switch (tps & 0 x3) {
case 0 :
fep->guard_interval = GUARD_INTERVAL_1_32;
break ;
case 1 :
fep->guard_interval = GUARD_INTERVAL_1_16;
break ;
case 2 :
fep->guard_interval = GUARD_INTERVAL_1_8;
break ;
case 3 :
fep->guard_interval = GUARD_INTERVAL_1_4;
break ;
}
switch ((tps >> 14 ) & 0 x3) {
case 0 :
fep->modulation = QPSK;
break ;
case 1 :
fep->modulation = QAM_16;
break ;
case 2 :
default :
fep->modulation = QAM_64;
break ;
}
/* as long as the frontend_param structure is fixed for hierarchical transmission I refuse to use it */
/* (tps >> 13) & 0x1 == hrch is used, (tps >> 10) & 0x7 == alpha */
fep->hierarchy = HIERARCHY_NONE;
switch ((tps >> 5 ) & 0 x7) {
case 1 :
fep->code_rate_HP = FEC_1_2;
break ;
case 2 :
fep->code_rate_HP = FEC_2_3;
break ;
case 3 :
fep->code_rate_HP = FEC_3_4;
break ;
case 5 :
fep->code_rate_HP = FEC_5_6;
break ;
case 7 :
default :
fep->code_rate_HP = FEC_7_8;
break ;
}
switch ((tps >> 2 ) & 0 x7) {
case 1 :
fep->code_rate_LP = FEC_1_2;
break ;
case 2 :
fep->code_rate_LP = FEC_2_3;
break ;
case 3 :
fep->code_rate_LP = FEC_3_4;
break ;
case 5 :
fep->code_rate_LP = FEC_5_6;
break ;
case 7 :
default :
fep->code_rate_LP = FEC_7_8;
break ;
}
/* native interleaver: (dib7000p_read_word(state, 464) >> 5) & 0x1 */
return 0 ;
}
static int dib7000p_set_frontend(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *fep = &fe->dtv_property_cache;
struct dib7000p_state *state = fe->demodulator_priv;
int time, ret;
if (state->version == SOC7090)
dib7090_set_diversity_in(fe, 0 );
else
dib7000p_set_output_mode(state, OUTMODE_HIGH_Z);
/* maybe the parameter has been changed */
state->sfn_workaround_active = buggy_sfn_workaround;
if (fe->ops.tuner_ops.set_params)
fe->ops.tuner_ops.set_params(fe);
/* start up the AGC */
state->agc_state = 0 ;
do {
time = dib7000p_agc_startup(fe);
if (time != -1 )
msleep(time);
} while (time != -1 );
if (fep->transmission_mode == TRANSMISSION_MODE_AUTO ||
fep->guard_interval == GUARD_INTERVAL_AUTO || fep->modulation == QAM_AUTO || fep->code_rate_HP == FEC_AUTO) {
int i = 800 , found;
dib7000p_autosearch_start(fe);
do {
msleep(1 );
found = dib7000p_autosearch_is_irq(fe);
} while (found == 0 && i--);
dprintk("autosearch returns: %d\n" , found);
if (found == 0 || found == 1 )
return 0 ;
dib7000p_get_frontend(fe, fep);
}
ret = dib7000p_tune(fe);
/* make this a config parameter */
if (state->version == SOC7090) {
dib7090_set_output_mode(fe, state->cfg.output_mode);
if (state->cfg.enMpegOutput == 0 ) {
dib7090_setDibTxMux(state, MPEG_ON_DIBTX);
dib7090_setHostBusMux(state, DIBTX_ON_HOSTBUS);
}
} else
dib7000p_set_output_mode(state, state->cfg.output_mode);
return ret;
}
static int dib7000p_get_stats(struct dvb_frontend *fe, enum fe_status stat);
static int dib7000p_read_status(struct dvb_frontend *fe, enum fe_status *stat)
{
struct dib7000p_state *state = fe->demodulator_priv;
u16 lock = dib7000p_read_word(state, 509 );
*stat = 0 ;
if (lock & 0 x8000)
*stat |= FE_HAS_SIGNAL;
if (lock & 0 x3000)
*stat |= FE_HAS_CARRIER;
if (lock & 0 x0100)
*stat |= FE_HAS_VITERBI;
if (lock & 0 x0010)
*stat |= FE_HAS_SYNC;
if ((lock & 0 x0038) == 0 x38)
*stat |= FE_HAS_LOCK;
dib7000p_get_stats(fe, *stat);
return 0 ;
}
static int dib7000p_read_ber(struct dvb_frontend *fe, u32 * ber)
{
struct dib7000p_state *state = fe->demodulator_priv;
*ber = (dib7000p_read_word(state, 500 ) << 16 ) | dib7000p_read_word(state, 501 );
return 0 ;
}
static int dib7000p_read_unc_blocks(struct dvb_frontend *fe, u32 * unc)
{
struct dib7000p_state *state = fe->demodulator_priv;
*unc = dib7000p_read_word(state, 506 );
return 0 ;
}
static int dib7000p_read_signal_strength(struct dvb_frontend *fe, u16 * strength)
{
struct dib7000p_state *state = fe->demodulator_priv;
u16 val = dib7000p_read_word(state, 394 );
*strength = 65535 - val;
return 0 ;
}
static u32 dib7000p_get_snr(struct dvb_frontend *fe)
{
struct dib7000p_state *state = fe->demodulator_priv;
u16 val;
s32 signal_mant, signal_exp, noise_mant, noise_exp;
u32 result = 0 ;
val = dib7000p_read_word(state, 479 );
noise_mant = (val >> 4 ) & 0 xff;
noise_exp = ((val & 0 xf) << 2 );
val = dib7000p_read_word(state, 480 );
noise_exp += ((val >> 14 ) & 0 x3);
if ((noise_exp & 0 x20) != 0 )
noise_exp -= 0 x40;
signal_mant = (val >> 6 ) & 0 xFF;
signal_exp = (val & 0 x3F);
if ((signal_exp & 0 x20) != 0 )
signal_exp -= 0 x40;
if (signal_mant != 0 )
result = intlog10(2 ) * 10 * signal_exp + 10 * intlog10(signal_mant);
else
result = intlog10(2 ) * 10 * signal_exp - 100 ;
if (noise_mant != 0 )
result -= intlog10(2 ) * 10 * noise_exp + 10 * intlog10(noise_mant);
else
result -= intlog10(2 ) * 10 * noise_exp - 100 ;
return result;
}
static int dib7000p_read_snr(struct dvb_frontend *fe, u16 *snr)
{
u32 result;
result = dib7000p_get_snr(fe);
*snr = result / ((1 << 24 ) / 10 );
return 0 ;
}
static void dib7000p_reset_stats(struct dvb_frontend *demod)
{
struct dib7000p_state *state = demod->demodulator_priv;
struct dtv_frontend_properties *c = &demod->dtv_property_cache;
u32 ucb;
memset(&c->strength, 0 , sizeof (c->strength));
memset(&c->cnr, 0 , sizeof (c->cnr));
memset(&c->post_bit_error, 0 , sizeof (c->post_bit_error));
memset(&c->post_bit_count, 0 , sizeof (c->post_bit_count));
memset(&c->block_error, 0 , sizeof (c->block_error));
c->strength.len = 1 ;
c->cnr.len = 1 ;
c->block_error.len = 1 ;
c->block_count.len = 1 ;
c->post_bit_error.len = 1 ;
c->post_bit_count.len = 1 ;
c->strength.stat[0 ].scale = FE_SCALE_DECIBEL;
c->strength.stat[0 ].uvalue = 0 ;
c->cnr.stat[0 ].scale = FE_SCALE_NOT_AVAILABLE;
c->block_error.stat[0 ].scale = FE_SCALE_NOT_AVAILABLE;
c->block_count.stat[0 ].scale = FE_SCALE_NOT_AVAILABLE;
c->post_bit_error.stat[0 ].scale = FE_SCALE_NOT_AVAILABLE;
c->post_bit_count.stat[0 ].scale = FE_SCALE_NOT_AVAILABLE;
dib7000p_read_unc_blocks(demod, &ucb);
state->old_ucb = ucb;
state->ber_jiffies_stats = 0 ;
state->per_jiffies_stats = 0 ;
}
struct linear_segments {
unsigned x;
signed y;
};
/*
* Table to estimate signal strength in dBm.
* This table should be empirically determinated by measuring the signal
* strength generated by a RF generator directly connected into
* a device.
* This table was determinated by measuring the signal strength generated
* by a DTA-2111 RF generator directly connected into a dib7000p device
* (a Hauppauge Nova-TD stick), using a good quality 3 meters length
* RC6 cable and good RC6 connectors, connected directly to antenna 1.
* As the minimum output power of DTA-2111 is -31dBm, a 16 dBm attenuator
* were used, for the lower power values.
* The real value can actually be on other devices, or even at the
* second antena input, depending on several factors, like if LNA
* is enabled or not, if diversity is enabled, type of connectors, etc.
* Yet, it is better to use this measure in dB than a random non-linear
* percentage value, especially for antenna adjustments.
* On my tests, the precision of the measure using this table is about
* 0.5 dB, with sounds reasonable enough to adjust antennas.
*/
#define DB_OFFSET 131000
static struct linear_segments strength_to_db_table[] = {
{ 63630 , DB_OFFSET - 20500 },
{ 62273 , DB_OFFSET - 21000 },
{ 60162 , DB_OFFSET - 22000 },
{ 58730 , DB_OFFSET - 23000 },
{ 58294 , DB_OFFSET - 24000 },
{ 57778 , DB_OFFSET - 25000 },
{ 57320 , DB_OFFSET - 26000 },
{ 56779 , DB_OFFSET - 27000 },
{ 56293 , DB_OFFSET - 28000 },
{ 55724 , DB_OFFSET - 29000 },
{ 55145 , DB_OFFSET - 30000 },
{ 54680 , DB_OFFSET - 31000 },
{ 54293 , DB_OFFSET - 32000 },
{ 53813 , DB_OFFSET - 33000 },
{ 53427 , DB_OFFSET - 34000 },
{ 52981 , DB_OFFSET - 35000 },
{ 52636 , DB_OFFSET - 36000 },
{ 52014 , DB_OFFSET - 37000 },
{ 51674 , DB_OFFSET - 38000 },
{ 50692 , DB_OFFSET - 39000 },
{ 49824 , DB_OFFSET - 40000 },
{ 49052 , DB_OFFSET - 41000 },
{ 48436 , DB_OFFSET - 42000 },
{ 47836 , DB_OFFSET - 43000 },
{ 47368 , DB_OFFSET - 44000 },
{ 46468 , DB_OFFSET - 45000 },
{ 45597 , DB_OFFSET - 46000 },
{ 44586 , DB_OFFSET - 47000 },
{ 43667 , DB_OFFSET - 48000 },
{ 42673 , DB_OFFSET - 49000 },
{ 41816 , DB_OFFSET - 50000 },
{ 40876 , DB_OFFSET - 51000 },
{ 0 , 0 },
};
static u32 interpolate_value(u32 value, struct linear_segments *segments,
unsigned len)
{
u64 tmp64;
u32 dx;
s32 dy;
int i, ret;
if (value >= segments[0 ].x)
return segments[0 ].y;
if (value < segments[len-1 ].x)
return segments[len-1 ].y;
for (i = 1 ; i < len - 1 ; i++) {
/* If value is identical, no need to interpolate */
if (value == segments[i].x)
return segments[i].y;
if (value > segments[i].x)
break ;
}
/* Linear interpolation between the two (x,y) points */
dy = segments[i - 1 ].y - segments[i].y;
dx = segments[i - 1 ].x - segments[i].x;
tmp64 = value - segments[i].x;
tmp64 *= dy;
do_div(tmp64, dx);
ret = segments[i].y + tmp64;
return ret;
}
/* FIXME: may require changes - this one was borrowed from dib8000 */
static u32 dib7000p_get_time_us(struct dvb_frontend *demod)
{
struct dtv_frontend_properties *c = &demod->dtv_property_cache;
u64 time_us, tmp64;
u32 tmp, denom;
int guard, rate_num, rate_denum = 1 , bits_per_symbol;
int interleaving = 0 , fft_div;
switch (c->guard_interval) {
case GUARD_INTERVAL_1_4:
guard = 4 ;
break ;
case GUARD_INTERVAL_1_8:
guard = 8 ;
break ;
case GUARD_INTERVAL_1_16:
guard = 16 ;
break ;
default :
case GUARD_INTERVAL_1_32:
guard = 32 ;
break ;
}
switch (c->transmission_mode) {
case TRANSMISSION_MODE_2K:
fft_div = 4 ;
break ;
case TRANSMISSION_MODE_4K:
fft_div = 2 ;
break ;
default :
case TRANSMISSION_MODE_8K:
fft_div = 1 ;
break ;
}
switch (c->modulation) {
case DQPSK:
case QPSK:
bits_per_symbol = 2 ;
break ;
case QAM_16:
bits_per_symbol = 4 ;
break ;
default :
case QAM_64:
bits_per_symbol = 6 ;
break ;
}
switch ((c->hierarchy == 0 || 1 == 1 ) ? c->code_rate_HP : c->code_rate_LP) {
case FEC_1_2:
rate_num = 1 ;
rate_denum = 2 ;
break ;
case FEC_2_3:
rate_num = 2 ;
rate_denum = 3 ;
break ;
case FEC_3_4:
rate_num = 3 ;
rate_denum = 4 ;
break ;
case FEC_5_6:
rate_num = 5 ;
rate_denum = 6 ;
break ;
default :
case FEC_7_8:
rate_num = 7 ;
rate_denum = 8 ;
break ;
}
denom = bits_per_symbol * rate_num * fft_div * 384 ;
/*
* FIXME: check if the math makes sense. If so, fill the
* interleaving var.
*/
/* If calculus gets wrong, wait for 1s for the next stats */
if (!denom)
return 0 ;
/* Estimate the period for the total bit rate */
time_us = rate_denum * (1008 * 1562500 L);
tmp64 = time_us;
do_div(tmp64, guard);
time_us = time_us + tmp64;
time_us += denom / 2 ;
do_div(time_us, denom);
tmp = 1008 * 96 * interleaving;
time_us += tmp + tmp / guard;
return time_us;
}
static int dib7000p_get_stats(struct dvb_frontend *demod, enum fe_status stat)
{
struct dib7000p_state *state = demod->demodulator_priv;
struct dtv_frontend_properties *c = &demod->dtv_property_cache;
int show_per_stats = 0 ;
u32 time_us = 0 , val, snr;
u64 blocks, ucb;
s32 db;
u16 strength;
/* Get Signal strength */
dib7000p_read_signal_strength(demod, &strength);
val = strength;
db = interpolate_value(val,
strength_to_db_table,
ARRAY_SIZE(strength_to_db_table)) - DB_OFFSET;
c->strength.stat[0 ].svalue = db;
/* UCB/BER/CNR measures require lock */
if (!(stat & FE_HAS_LOCK)) {
c->cnr.len = 1 ;
c->block_count.len = 1 ;
c->block_error.len = 1 ;
c->post_bit_error.len = 1 ;
c->post_bit_count.len = 1 ;
c->cnr.stat[0 ].scale = FE_SCALE_NOT_AVAILABLE;
c->post_bit_error.stat[0 ].scale = FE_SCALE_NOT_AVAILABLE;
c->post_bit_count.stat[0 ].scale = FE_SCALE_NOT_AVAILABLE;
c->block_error.stat[0 ].scale = FE_SCALE_NOT_AVAILABLE;
c->block_count.stat[0 ].scale = FE_SCALE_NOT_AVAILABLE;
return 0 ;
}
/* Check if time for stats was elapsed */
if (time_after(jiffies, state->per_jiffies_stats)) {
state->per_jiffies_stats = jiffies + msecs_to_jiffies(1000 );
/* Get SNR */
snr = dib7000p_get_snr(demod);
if (snr)
snr = (1000 L * snr) >> 24 ;
else
snr = 0 ;
c->cnr.stat[0 ].svalue = snr;
c->cnr.stat[0 ].scale = FE_SCALE_DECIBEL;
/* Get UCB measures */
dib7000p_read_unc_blocks(demod, &val);
ucb = val - state->old_ucb;
if (val < state->old_ucb)
ucb += 0 x100000000LL;
c->block_error.stat[0 ].scale = FE_SCALE_COUNTER;
c->block_error.stat[0 ].uvalue = ucb;
/* Estimate the number of packets based on bitrate */
if (!time_us)
time_us = dib7000p_get_time_us(demod);
if (time_us) {
blocks = 1250000 ULL * 1000000 ULL;
do_div(blocks, time_us * 8 * 204 );
c->block_count.stat[0 ].scale = FE_SCALE_COUNTER;
c->block_count.stat[0 ].uvalue += blocks;
}
show_per_stats = 1 ;
}
/* Get post-BER measures */
if (time_after(jiffies, state->ber_jiffies_stats)) {
time_us = dib7000p_get_time_us(demod);
state->ber_jiffies_stats = jiffies + msecs_to_jiffies((time_us + 500 ) / 1000 );
dprintk("Next all layers stats available in %u us.\n" , time_us);
dib7000p_read_ber(demod, &val);
c->post_bit_error.stat[0 ].scale = FE_SCALE_COUNTER;
c->post_bit_error.stat[0 ].uvalue += val;
c->post_bit_count.stat[0 ].scale = FE_SCALE_COUNTER;
c->post_bit_count.stat[0 ].uvalue += 100000000 ;
}
/* Get PER measures */
if (show_per_stats) {
dib7000p_read_unc_blocks(demod, &val);
c->block_error.stat[0 ].scale = FE_SCALE_COUNTER;
c->block_error.stat[0 ].uvalue += val;
time_us = dib7000p_get_time_us(demod);
if (time_us) {
blocks = 1250000 ULL * 1000000 ULL;
do_div(blocks, time_us * 8 * 204 );
c->block_count.stat[0 ].scale = FE_SCALE_COUNTER;
c->block_count.stat[0 ].uvalue += blocks;
}
}
return 0 ;
}
static int dib7000p_fe_get_tune_settings(struct dvb_frontend *fe, struct dvb_frontend_tune_settings *tune)
{
tune->min_delay_ms = 1000 ;
return 0 ;
}
static void dib7000p_release(struct dvb_frontend *demod)
{
struct dib7000p_state *st = demod->demodulator_priv;
dibx000_exit_i2c_master(&st->i2c_master);
i2c_del_adapter(&st->dib7090_tuner_adap);
kfree(st);
}
static int dib7000pc_detection(struct i2c_adapter *i2c_adap)
{
u8 *tx, *rx;
struct i2c_msg msg[2 ] = {
{.addr = 18 >> 1 , .flags = 0 , .len = 2 },
{.addr = 18 >> 1 , .flags = I2C_M_RD, .len = 2 },
};
int ret = 0 ;
tx = kzalloc(2 , GFP_KERNEL);
if (!tx)
return -ENOMEM;
rx = kzalloc(2 , GFP_KERNEL);
if (!rx) {
ret = -ENOMEM;
goto rx_memory_error;
}
msg[0 ].buf = tx;
msg[1 ].buf = rx;
tx[0 ] = 0 x03;
tx[1 ] = 0 x00;
if (i2c_transfer(i2c_adap, msg, 2 ) == 2 )
if (rx[0 ] == 0 x01 && rx[1 ] == 0 xb3) {
dprintk("-D- DiB7000PC detected\n" );
ret = 1 ;
goto out;
}
msg[0 ].addr = msg[1 ].addr = 0 x40;
if (i2c_transfer(i2c_adap, msg, 2 ) == 2 )
if (rx[0 ] == 0 x01 && rx[1 ] == 0 xb3) {
dprintk("-D- DiB7000PC detected\n" );
ret = 1 ;
goto out;
}
dprintk("-D- DiB7000PC not detected\n" );
out:
kfree(rx);
rx_memory_error:
kfree(tx);
return ret;
}
static struct i2c_adapter *dib7000p_get_i2c_master(struct dvb_frontend *demod, enum dibx000_i2c_interface intf, int gating)
{
struct dib7000p_state *st = demod->demodulator_priv;
return dibx000_get_i2c_adapter(&st->i2c_master, intf, gating);
}
static int dib7000p_pid_filter_ctrl(struct dvb_frontend *fe, u8 onoff)
{
struct dib7000p_state *state = fe->demodulator_priv;
u16 val = dib7000p_read_word(state, 235 ) & 0 xffef;
val |= (onoff & 0 x1) << 4 ;
dprintk("PID filter enabled %d\n" , onoff);
return dib7000p_write_word(state, 235 , val);
}
static int dib7000p_pid_filter(struct dvb_frontend *fe, u8 id, u16 pid, u8 onoff)
{
struct dib7000p_state *state = fe->demodulator_priv;
dprintk("PID filter: index %x, PID %d, OnOff %d\n" , id, pid, onoff);
return dib7000p_write_word(state, 241 + id, onoff ? (1 << 13 ) | pid : 0 );
}
static int dib7000p_i2c_enumeration(struct i2c_adapter *i2c, int no_of_demods, u8 default_addr, struct dib7000p_config cfg[])
{
struct dib7000p_state *dpst;
int k = 0 ;
u8 new_addr = 0 ;
dpst = kzalloc(sizeof (struct dib7000p_state), GFP_KERNEL);
if (!dpst)
return -ENOMEM;
dpst->i2c_adap = i2c;
mutex_init(&dpst->i2c_buffer_lock);
for (k = no_of_demods - 1 ; k >= 0 ; k--) {
dpst->cfg = cfg[k];
/* designated i2c address */
if (cfg[k].default_i2c_addr != 0 )
new_addr = cfg[k].default_i2c_addr + (k << 1 );
else
new_addr = (0 x40 + k) << 1 ;
dpst->i2c_addr = new_addr;
dib7000p_write_word(dpst, 1287 , 0 x0003); /* sram lead in, rdy */
if (dib7000p_identify(dpst) != 0 ) {
dpst->i2c_addr = default_addr;
dib7000p_write_word(dpst, 1287 , 0 x0003); /* sram lead in, rdy */
if (dib7000p_identify(dpst) != 0 ) {
dprintk("DiB7000P #%d: not identified\n" , k);
kfree(dpst);
return -EIO;
}
}
/* start diversity to pull_down div_str - just for i2c-enumeration */
dib7000p_set_output_mode(dpst, OUTMODE_DIVERSITY);
/* set new i2c address and force divstart */
dib7000p_write_word(dpst, 1285 , (new_addr << 2 ) | 0 x2);
dprintk("IC %d initialized (to i2c_address 0x%x)\n" , k, new_addr);
}
for (k = 0 ; k < no_of_demods; k++) {
dpst->cfg = cfg[k];
if (cfg[k].default_i2c_addr != 0 )
dpst->i2c_addr = (cfg[k].default_i2c_addr + k) << 1 ;
else
dpst->i2c_addr = (0 x40 + k) << 1 ;
// unforce divstr
dib7000p_write_word(dpst, 1285 , dpst->i2c_addr << 2 );
/* deactivate div - it was just for i2c-enumeration */
dib7000p_set_output_mode(dpst, OUTMODE_HIGH_Z);
}
kfree(dpst);
return 0 ;
}
static const s32 lut_1000ln_mant[] = {
6908 , 6956 , 7003 , 7047 , 7090 , 7131 , 7170 , 7208 , 7244 , 7279 , 7313 , 7346 , 7377 , 7408 , 7438 , 7467 , 7495 , 7523 , 7549 , 7575 , 7600
};
static s32 dib7000p_get_adc_power(struct dvb_frontend *fe)
{
struct dib7000p_state *state = fe->demodulator_priv;
u32 tmp_val = 0 , exp = 0 , mant = 0 ;
s32 pow_i;
u16 buf[2 ];
u8 ix = 0 ;
buf[0 ] = dib7000p_read_word(state, 0 x184);
buf[1 ] = dib7000p_read_word(state, 0 x185);
pow_i = (buf[0 ] << 16 ) | buf[1 ];
dprintk("raw pow_i = %d\n" , pow_i);
tmp_val = pow_i;
while (tmp_val >>= 1 )
exp++;
mant = (pow_i * 1000 / (1 << exp));
dprintk(" mant = %d exp = %d\n" , mant / 1000 , exp);
ix = (u8) ((mant - 1000 ) / 100 ); /* index of the LUT */
dprintk(" ix = %d\n" , ix);
pow_i = (lut_1000ln_mant[ix] + 693 * (exp - 20 ) - 6908 );
pow_i = (pow_i << 8 ) / 1000 ;
dprintk(" pow_i = %d\n" , pow_i);
return pow_i;
}
static int map_addr_to_serpar_number(struct i2c_msg *msg)
{
if ((msg->buf[0 ] <= 15 ))
msg->buf[0 ] -= 1 ;
else if (msg->buf[0 ] == 17 )
msg->buf[0 ] = 15 ;
else if (msg->buf[0 ] == 16 )
msg->buf[0 ] = 17 ;
else if (msg->buf[0 ] == 19 )
msg->buf[0 ] = 16 ;
else if (msg->buf[0 ] >= 21 && msg->buf[0 ] <= 25 )
msg->buf[0 ] -= 3 ;
else if (msg->buf[0 ] == 28 )
msg->buf[0 ] = 23 ;
else
return -EINVAL;
return 0 ;
}
static int w7090p_tuner_write_serpar(struct i2c_adapter *i2c_adap, struct i2c_msg msg[], int num)
{
struct dib7000p_state *state = i2c_get_adapdata(i2c_adap);
u8 n_overflow = 1 ;
u16 i = 1000 ;
if (msg[0 ].len < 3 )
return -EOPNOTSUPP;
u16 serpar_num = msg[0 ].buf[0 ];
while (n_overflow == 1 && i) {
n_overflow = (dib7000p_read_word(state, 1984 ) >> 1 ) & 0 x1;
i--;
if (i == 0 )
dprintk("Tuner ITF: write busy (overflow)\n" );
}
dib7000p_write_word(state, 1985 , (1 << 6 ) | (serpar_num & 0 x3f));
dib7000p_write_word(state, 1986 , (msg[0 ].buf[1 ] << 8 ) | msg[0 ].buf[2 ]);
return num;
}
static int w7090p_tuner_read_serpar(struct i2c_adapter *i2c_adap, struct i2c_msg msg[], int num)
{
struct dib7000p_state *state = i2c_get_adapdata(i2c_adap);
u8 n_overflow = 1 , n_empty = 1 ;
u16 i = 1000 ;
if (msg[0 ].len < 1 || msg[1 ].len < 2 )
return -EOPNOTSUPP;
u16 serpar_num = msg[0 ].buf[0 ];
u16 read_word;
while (n_overflow == 1 && i) {
n_overflow = (dib7000p_read_word(state, 1984 ) >> 1 ) & 0 x1;
i--;
if (i == 0 )
dprintk("TunerITF: read busy (overflow)\n" );
}
dib7000p_write_word(state, 1985 , (0 << 6 ) | (serpar_num & 0 x3f));
i = 1000 ;
while (n_empty == 1 && i) {
n_empty = dib7000p_read_word(state, 1984 ) & 0 x1;
i--;
if (i == 0 )
dprintk("TunerITF: read busy (empty)\n" );
}
read_word = dib7000p_read_word(state, 1987 );
msg[1 ].buf[0 ] = (read_word >> 8 ) & 0 xff;
msg[1 ].buf[1 ] = (read_word) & 0 xff;
return num;
}
static int w7090p_tuner_rw_serpar(struct i2c_adapter *i2c_adap, struct i2c_msg msg[], int num)
{
if (map_addr_to_serpar_number(&msg[0 ]) == 0 ) { /* else = Tuner regs to ignore : DIG_CFG, CTRL_RF_LT, PLL_CFG, PWM1_REG, ADCCLK, DIG_CFG_3; SLEEP_EN... */
if (num == 1 ) { /* write */
return w7090p_tuner_write_serpar(i2c_adap, msg, 1 );
} else { /* read */
return w7090p_tuner_read_serpar(i2c_adap, msg, 2 );
}
}
return num;
}
static int dib7090p_rw_on_apb(struct i2c_adapter *i2c_adap,
struct i2c_msg msg[], int num, u16 apb_address)
{
struct dib7000p_state *state = i2c_get_adapdata(i2c_adap);
u16 word;
if (num == 1 ) { /* write */
if (msg[0 ].len < 3 )
return -EOPNOTSUPP;
dib7000p_write_word(state, apb_address, ((msg[0 ].buf[1 ] << 8 ) | (msg[0 ].buf[2 ])));
} else {
if (msg[1 ].len < 2 )
return -EOPNOTSUPP;
word = dib7000p_read_word(state, apb_address);
msg[1 ].buf[0 ] = (word >> 8 ) & 0 xff;
msg[1 ].buf[1 ] = (word) & 0 xff;
}
return num;
}
static int dib7090_tuner_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg msg[], int num)
{
struct dib7000p_state *state = i2c_get_adapdata(i2c_adap);
u16 apb_address = 0 , word;
int i = 0 ;
switch (msg[0 ].buf[0 ]) {
case 0 x12:
apb_address = 1920 ;
break ;
case 0 x14:
apb_address = 1921 ;
break ;
case 0 x24:
apb_address = 1922 ;
break ;
case 0 x1a:
apb_address = 1923 ;
break ;
case 0 x22:
apb_address = 1924 ;
break ;
case 0 x33:
apb_address = 1926 ;
break ;
case 0 x34:
apb_address = 1927 ;
break ;
case 0 x35:
apb_address = 1928 ;
break ;
case 0 x36:
apb_address = 1929 ;
break ;
case 0 x37:
apb_address = 1930 ;
break ;
case 0 x38:
apb_address = 1931 ;
break ;
case 0 x39:
apb_address = 1932 ;
break ;
case 0 x2a:
apb_address = 1935 ;
break ;
case 0 x2b:
apb_address = 1936 ;
break ;
case 0 x2c:
apb_address = 1937 ;
break ;
case 0 x2d:
apb_address = 1938 ;
break ;
case 0 x2e:
apb_address = 1939 ;
break ;
case 0 x2f:
apb_address = 1940 ;
break ;
case 0 x30:
apb_address = 1941 ;
break ;
case 0 x31:
apb_address = 1942 ;
break ;
case 0 x32:
apb_address = 1943 ;
break ;
case 0 x3e:
apb_address = 1944 ;
break ;
case 0 x3f:
apb_address = 1945 ;
break ;
case 0 x40:
apb_address = 1948 ;
break ;
case 0 x25:
apb_address = 914 ;
break ;
case 0 x26:
apb_address = 915 ;
break ;
case 0 x27:
apb_address = 917 ;
break ;
case 0 x28:
apb_address = 916 ;
break ;
case 0 x1d:
i = ((dib7000p_read_word(state, 72 ) >> 12 ) & 0 x3);
word = dib7000p_read_word(state, 384 + i);
msg[1 ].buf[0 ] = (word >> 8 ) & 0 xff;
msg[1 ].buf[1 ] = (word) & 0 xff;
return num;
case 0 x1f:
if (num == 1 ) { /* write */
word = (u16) ((msg[0 ].buf[1 ] << 8 ) | msg[0 ].buf[2 ]);
word &= 0 x3;
word = (dib7000p_read_word(state, 72 ) & ~(3 << 12 )) | (word << 12 );
dib7000p_write_word(state, 72 , word); /* Set the proper input */
return num;
}
}
if (apb_address != 0 ) /* R/W access via APB */
return dib7090p_rw_on_apb(i2c_adap, msg, num, apb_address);
else /* R/W access via SERPAR */
return w7090p_tuner_rw_serpar(i2c_adap, msg, num);
return 0 ;
}
static u32 dib7000p_i2c_func(struct i2c_adapter *adapter)
{
return I2C_FUNC_I2C;
}
static const struct i2c_algorithm dib7090_tuner_xfer_algo = {
.master_xfer = dib7090_tuner_xfer,
.functionality = dib7000p_i2c_func,
};
static struct i2c_adapter *dib7090_get_i2c_tuner(struct dvb_frontend *fe)
{
struct dib7000p_state *st = fe->demodulator_priv;
return &st->dib7090_tuner_adap;
}
static int dib7090_host_bus_drive(struct dib7000p_state *state, u8 drive)
{
u16 reg;
/* drive host bus 2, 3, 4 */
reg = dib7000p_read_word(state, 1798 ) & ~((0 x7) | (0 x7 << 6 ) | (0 x7 << 12 ));
reg |= (drive << 12 ) | (drive << 6 ) | drive;
dib7000p_write_word(state, 1798 , reg);
/* drive host bus 5,6 */
reg = dib7000p_read_word(state, 1799 ) & ~((0 x7 << 2 ) | (0 x7 << 8 ));
reg |= (drive << 8 ) | (drive << 2 );
dib7000p_write_word(state, 1799 , reg);
/* drive host bus 7, 8, 9 */
reg = dib7000p_read_word(state, 1800 ) & ~((0 x7) | (0 x7 << 6 ) | (0 x7 << 12 ));
reg |= (drive << 12 ) | (drive << 6 ) | drive;
dib7000p_write_word(state, 1800 , reg);
/* drive host bus 10, 11 */
reg = dib7000p_read_word(state, 1801 ) & ~((0 x7 << 2 ) | (0 x7 << 8 ));
reg |= (drive << 8 ) | (drive << 2 );
dib7000p_write_word(state, 1801 , reg);
/* drive host bus 12, 13, 14 */
reg = dib7000p_read_word(state, 1802 ) & ~((0 x7) | (0 x7 << 6 ) | (0 x7 << 12 ));
reg |= (drive << 12 ) | (drive << 6 ) | drive;
dib7000p_write_word(state, 1802 , reg);
return 0 ;
}
static u32 dib7090_calcSyncFreq(u32 P_Kin, u32 P_Kout, u32 insertExtSynchro, u32 syncSize)
{
u32 quantif = 3 ;
u32 nom = (insertExtSynchro * P_Kin + syncSize);
u32 denom = P_Kout;
u32 syncFreq = ((nom << quantif) / denom);
if ((syncFreq & ((1 << quantif) - 1 )) != 0 )
syncFreq = (syncFreq >> quantif) + 1 ;
else
syncFreq = (syncFreq >> quantif);
if (syncFreq != 0 )
syncFreq = syncFreq - 1 ;
return syncFreq;
}
static int dib7090_cfg_DibTx(struct dib7000p_state *state, u32 P_Kin, u32 P_Kout, u32 insertExtSynchro, u32 synchroMode, u32 syncWord, u32 syncSize)
{
dprintk("Configure DibStream Tx\n" );
dib7000p_write_word(state, 1615 , 1 );
dib7000p_write_word(state, 1603 , P_Kin);
dib7000p_write_word(state, 1605 , P_Kout);
dib7000p_write_word(state, 1606 , insertExtSynchro);
dib7000p_write_word(state, 1608 , synchroMode);
dib7000p_write_word(state, 1609 , (syncWord >> 16 ) & 0 xffff);
dib7000p_write_word(state, 1610 , syncWord & 0 xffff);
dib7000p_write_word(state, 1612 , syncSize);
dib7000p_write_word(state, 1615 , 0 );
return 0 ;
}
static int dib7090_cfg_DibRx(struct dib7000p_state *state, u32 P_Kin, u32 P_Kout, u32 synchroMode, u32 insertExtSynchro, u32 syncWord, u32 syncSize,
u32 dataOutRate)
{
u32 syncFreq;
dprintk("Configure DibStream Rx\n" );
if ((P_Kin != 0 ) && (P_Kout != 0 )) {
syncFreq = dib7090_calcSyncFreq(P_Kin, P_Kout, insertExtSynchro, syncSize);
dib7000p_write_word(state, 1542 , syncFreq);
}
dib7000p_write_word(state, 1554 , 1 );
dib7000p_write_word(state, 1536 , P_Kin);
dib7000p_write_word(state, 1537 , P_Kout);
dib7000p_write_word(state, 1539 , synchroMode);
dib7000p_write_word(state, 1540 , (syncWord >> 16 ) & 0 xffff);
dib7000p_write_word(state, 1541 , syncWord & 0 xffff);
dib7000p_write_word(state, 1543 , syncSize);
dib7000p_write_word(state, 1544 , dataOutRate);
dib7000p_write_word(state, 1554 , 0 );
return 0 ;
}
static void dib7090_enMpegMux(struct dib7000p_state *state, int onoff)
{
u16 reg_1287 = dib7000p_read_word(state, 1287 );
switch (onoff) {
case 1 :
reg_1287 &= ~(1 <<7 );
break ;
case 0 :
reg_1287 |= (1 <<7 );
break ;
}
dib7000p_write_word(state, 1287 , reg_1287);
}
static void dib7090_configMpegMux(struct dib7000p_state *state,
u16 pulseWidth, u16 enSerialMode, u16 enSerialClkDiv2)
{
dprintk("Enable Mpeg mux\n" );
dib7090_enMpegMux(state, 0 );
/* If the input mode is MPEG do not divide the serial clock */
if ((enSerialMode == 1 ) && (state->input_mode_mpeg == 1 ))
enSerialClkDiv2 = 0 ;
dib7000p_write_word(state, 1287 , ((pulseWidth & 0 x1f) << 2 )
| ((enSerialMode & 0 x1) << 1 )
| (enSerialClkDiv2 & 0 x1));
dib7090_enMpegMux(state, 1 );
}
static void dib7090_setDibTxMux(struct dib7000p_state *state, int mode)
{
u16 reg_1288 = dib7000p_read_word(state, 1288 ) & ~(0 x7 << 7 );
switch (mode) {
case MPEG_ON_DIBTX:
dprintk("SET MPEG ON DIBSTREAM TX\n" );
dib7090_cfg_DibTx(state, 8 , 5 , 0 , 0 , 0 , 0 );
reg_1288 |= (1 <<9 );
break ;
case DIV_ON_DIBTX:
dprintk("SET DIV_OUT ON DIBSTREAM TX\n" );
dib7090_cfg_DibTx(state, 5 , 5 , 0 , 0 , 0 , 0 );
reg_1288 |= (1 <<8 );
break ;
case ADC_ON_DIBTX:
dprintk("SET ADC_OUT ON DIBSTREAM TX\n" );
dib7090_cfg_DibTx(state, 20 , 5 , 10 , 0 , 0 , 0 );
reg_1288 |= (1 <<7 );
break ;
default :
break ;
}
dib7000p_write_word(state, 1288 , reg_1288);
}
static void dib7090_setHostBusMux(struct dib7000p_state *state, int mode)
{
u16 reg_1288 = dib7000p_read_word(state, 1288 ) & ~(0 x7 << 4 );
switch (mode) {
case DEMOUT_ON_HOSTBUS:
dprintk("SET DEM OUT OLD INTERF ON HOST BUS\n" );
dib7090_enMpegMux(state, 0 );
reg_1288 |= (1 <<6 );
break ;
case DIBTX_ON_HOSTBUS:
dprintk("SET DIBSTREAM TX ON HOST BUS\n" );
dib7090_enMpegMux(state, 0 );
reg_1288 |= (1 <<5 );
break ;
case MPEG_ON_HOSTBUS:
dprintk("SET MPEG MUX ON HOST BUS\n" );
reg_1288 |= (1 <<4 );
break ;
default :
break ;
}
dib7000p_write_word(state, 1288 , reg_1288);
}
static int dib7090_set_diversity_in(struct dvb_frontend *fe, int onoff)
{
struct dib7000p_state *state = fe->demodulator_priv;
u16 reg_1287;
switch (onoff) {
case 0 : /* only use the internal way - not the diversity input */
dprintk("%s mode OFF : by default Enable Mpeg INPUT\n" , __func__);
dib7090_cfg_DibRx(state, 8 , 5 , 0 , 0 , 0 , 8 , 0 );
/* Do not divide the serial clock of MPEG MUX */
/* in SERIAL MODE in case input mode MPEG is used */
reg_1287 = dib7000p_read_word(state, 1287 );
/* enSerialClkDiv2 == 1 ? */
if ((reg_1287 & 0 x1) == 1 ) {
/* force enSerialClkDiv2 = 0 */
reg_1287 &= ~0 x1;
dib7000p_write_word(state, 1287 , reg_1287);
}
state->input_mode_mpeg = 1 ;
break ;
case 1 : /* both ways */
case 2 : /* only the diversity input */
dprintk("%s ON : Enable diversity INPUT\n" , __func__);
dib7090_cfg_DibRx(state, 5 , 5 , 0 , 0 , 0 , 0 , 0 );
state->input_mode_mpeg = 0 ;
break ;
}
dib7000p_set_diversity_in(&state->demod, onoff);
return 0 ;
}
static int dib7090_set_output_mode(struct dvb_frontend *fe, int mode)
{
struct dib7000p_state *state = fe->demodulator_priv;
u16 outreg, smo_mode, fifo_threshold;
u8 prefer_mpeg_mux_use = 1 ;
int ret = 0 ;
dib7090_host_bus_drive(state, 1 );
fifo_threshold = 1792 ;
smo_mode = (dib7000p_read_word(state, 235 ) & 0 x0050) | (1 << 1 );
outreg = dib7000p_read_word(state, 1286 ) & ~((1 << 10 ) | (0 x7 << 6 ) | (1 << 1 ));
switch (mode) {
case OUTMODE_HIGH_Z:
outreg = 0 ;
break ;
case OUTMODE_MPEG2_SERIAL:
if (prefer_mpeg_mux_use) {
dprintk("setting output mode TS_SERIAL using Mpeg Mux\n" );
dib7090_configMpegMux(state, 3 , 1 , 1 );
dib7090_setHostBusMux(state, MPEG_ON_HOSTBUS);
} else {/* Use Smooth block */
dprintk("setting output mode TS_SERIAL using Smooth block\n" );
dib7090_setHostBusMux(state, DEMOUT_ON_HOSTBUS);
outreg |= (2 <<6 ) | (0 << 1 );
}
break ;
case OUTMODE_MPEG2_PAR_GATED_CLK:
if (prefer_mpeg_mux_use) {
dprintk("setting output mode TS_PARALLEL_GATED using Mpeg Mux\n" );
dib7090_configMpegMux(state, 2 , 0 , 0 );
dib7090_setHostBusMux(state, MPEG_ON_HOSTBUS);
} else { /* Use Smooth block */
dprintk("setting output mode TS_PARALLEL_GATED using Smooth block\n" );
dib7090_setHostBusMux(state, DEMOUT_ON_HOSTBUS);
outreg |= (0 <<6 );
}
break ;
case OUTMODE_MPEG2_PAR_CONT_CLK: /* Using Smooth block only */
dprintk("setting output mode TS_PARALLEL_CONT using Smooth block\n" );
dib7090_setHostBusMux(state, DEMOUT_ON_HOSTBUS);
outreg |= (1 <<6 );
break ;
case OUTMODE_MPEG2_FIFO: /* Using Smooth block because not supported by new Mpeg Mux block */
dprintk("setting output mode TS_FIFO using Smooth block\n" );
dib7090_setHostBusMux(state, DEMOUT_ON_HOSTBUS);
outreg |= (5 <<6 );
smo_mode |= (3 << 1 );
fifo_threshold = 512 ;
break ;
case OUTMODE_DIVERSITY:
dprintk("setting output mode MODE_DIVERSITY\n" );
dib7090_setDibTxMux(state, DIV_ON_DIBTX);
dib7090_setHostBusMux(state, DIBTX_ON_HOSTBUS);
break ;
case OUTMODE_ANALOG_ADC:
dprintk("setting output mode MODE_ANALOG_ADC\n" );
dib7090_setDibTxMux(state, ADC_ON_DIBTX);
dib7090_setHostBusMux(state, DIBTX_ON_HOSTBUS);
break ;
}
if (mode != OUTMODE_HIGH_Z)
outreg |= (1 << 10 );
if (state->cfg.output_mpeg2_in_188_bytes)
smo_mode |= (1 << 5 );
ret |= dib7000p_write_word(state, 235 , smo_mode);
ret |= dib7000p_write_word(state, 236 , fifo_threshold); /* synchronous fread */
ret |= dib7000p_write_word(state, 1286 , outreg);
return ret;
}
static int dib7090_tuner_sleep(struct dvb_frontend *fe, int onoff)
{
struct dib7000p_state *state = fe->demodulator_priv;
u16 en_cur_state;
dprintk("sleep dib7090: %d\n" , onoff);
en_cur_state = dib7000p_read_word(state, 1922 );
if (en_cur_state > 0 xff)
state->tuner_enable = en_cur_state;
if (onoff)
en_cur_state &= 0 x00ff;
else {
if (state->tuner_enable != 0 )
en_cur_state = state->tuner_enable;
}
dib7000p_write_word(state, 1922 , en_cur_state);
return 0 ;
}
static int dib7090_get_adc_power(struct dvb_frontend *fe)
{
return dib7000p_get_adc_power(fe);
}
static int dib7090_slave_reset(struct dvb_frontend *fe)
{
struct dib7000p_state *state = fe->demodulator_priv;
u16 reg;
reg = dib7000p_read_word(state, 1794 );
dib7000p_write_word(state, 1794 , reg | (4 << 12 ));
dib7000p_write_word(state, 1032 , 0 xffff);
return 0 ;
}
static const struct dvb_frontend_ops dib7000p_ops;
static struct dvb_frontend *dib7000p_init(struct i2c_adapter *i2c_adap, u8 i2c_addr, struct dib7000p_config *cfg)
{
struct dvb_frontend *demod;
struct dib7000p_state *st;
st = kzalloc(sizeof (struct dib7000p_state), GFP_KERNEL);
if (st == NULL)
return NULL;
memcpy(&st->cfg, cfg, sizeof (struct dib7000p_config));
st->i2c_adap = i2c_adap;
st->i2c_addr = i2c_addr;
st->gpio_val = cfg->gpio_val;
st->gpio_dir = cfg->gpio_dir;
/* Ensure the output mode remains at the previous default if it's
* not specifically set by the caller.
*/
if ((st->cfg.output_mode != OUTMODE_MPEG2_SERIAL) && (st->cfg.output_mode != OUTMODE_MPEG2_PAR_GATED_CLK))
st->cfg.output_mode = OUTMODE_MPEG2_FIFO;
demod = &st->demod;
demod->demodulator_priv = st;
memcpy(&st->demod.ops, &dib7000p_ops, sizeof (struct dvb_frontend_ops));
mutex_init(&st->i2c_buffer_lock);
dib7000p_write_word(st, 1287 , 0 x0003); /* sram lead in, rdy */
if (dib7000p_identify(st) != 0 )
goto error;
st->version = dib7000p_read_word(st, 897 );
/* FIXME: make sure the dev.parent field is initialized, or else
request_firmware() will hit an OOPS (this should be moved somewhere
more common) */
st->i2c_master.gated_tuner_i2c_adap.dev.parent = i2c_adap->dev.parent;
dibx000_init_i2c_master(&st->i2c_master, DIB7000P, st->i2c_adap, st->i2c_addr);
/* init 7090 tuner adapter */
strscpy(st->dib7090_tuner_adap.name, "DiB7090 tuner interface" ,
sizeof (st->dib7090_tuner_adap.name));
st->dib7090_tuner_adap.algo = &dib7090_tuner_xfer_algo;
st->dib7090_tuner_adap.algo_data = NULL;
st->dib7090_tuner_adap.dev.parent = st->i2c_adap->dev.parent;
i2c_set_adapdata(&st->dib7090_tuner_adap, st);
i2c_add_adapter(&st->dib7090_tuner_adap);
dib7000p_demod_reset(st);
dib7000p_reset_stats(demod);
if (st->version == SOC7090) {
dib7090_set_output_mode(demod, st->cfg.output_mode);
dib7090_set_diversity_in(demod, 0 );
}
return demod;
error:
kfree(st);
return NULL;
}
void *dib7000p_attach(struct dib7000p_ops *ops)
{
if (!ops)
return NULL;
ops->slave_reset = dib7090_slave_reset;
ops->get_adc_power = dib7090_get_adc_power;
ops->dib7000pc_detection = dib7000pc_detection;
ops->get_i2c_tuner = dib7090_get_i2c_tuner;
ops->tuner_sleep = dib7090_tuner_sleep;
ops->init = dib7000p_init;
ops->set_agc1_min = dib7000p_set_agc1_min;
ops->set_gpio = dib7000p_set_gpio;
ops->i2c_enumeration = dib7000p_i2c_enumeration;
ops->pid_filter = dib7000p_pid_filter;
ops->pid_filter_ctrl = dib7000p_pid_filter_ctrl;
ops->get_i2c_master = dib7000p_get_i2c_master;
ops->update_pll = dib7000p_update_pll;
ops->ctrl_timf = dib7000p_ctrl_timf;
ops->get_agc_values = dib7000p_get_agc_values;
ops->set_wbd_ref = dib7000p_set_wbd_ref;
return ops;
}
EXPORT_SYMBOL_GPL(dib7000p_attach);
static const struct dvb_frontend_ops dib7000p_ops = {
.delsys = { SYS_DVBT },
.info = {
.name = "DiBcom 7000PC" ,
.frequency_min_hz = 44250 * kHz,
.frequency_max_hz = 867250 * kHz,
.frequency_stepsize_hz = 62500 ,
.caps = FE_CAN_INVERSION_AUTO |
FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO | FE_CAN_RECOVER | FE_CAN_HIERARCHY_AUTO,
},
.release = dib7000p_release,
.init = dib7000p_wakeup,
.sleep = dib7000p_sleep,
.set_frontend = dib7000p_set_frontend,
.get_tune_settings = dib7000p_fe_get_tune_settings,
.get_frontend = dib7000p_get_frontend,
.read_status = dib7000p_read_status,
.read_ber = dib7000p_read_ber,
.read_signal_strength = dib7000p_read_signal_strength,
.read_snr = dib7000p_read_snr,
.read_ucblocks = dib7000p_read_unc_blocks,
};
MODULE_AUTHOR("Olivier Grenie <olivie.grenie@parrot.com>" );
MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>" );
MODULE_DESCRIPTION("Driver for the DiBcom 7000PC COFDM demodulator" );
MODULE_LICENSE("GPL" );
Messung V0.5 in Prozent C=93 H=96 G=94
¤ Dauer der Verarbeitung: 0.37 Sekunden
(vorverarbeitet am 2026-06-07)
¤
*© Formatika GbR, Deutschland