int dib7000p_enable_vbg_voltage(struct dibFrontend *fe)
{
struct dib7000p_state *state = fe->demod_priv;
dbgpl(&dib7000p_dbg, "enabling VBG voltage in the ADC");
/* P_dual_adc_cfg0 */
dib7000p_write_word(state, 908, (state->cfg.enable_current_mirror & 1) << 7);
/* P_dual_adc_cfg1 = 3, P_sar_adc_cfg = 2 */
dib7000p_write_word(state, 909, ((state->cfg.disable_sample_and_hold & 1) << 4) | (3 << 2) | (2 << 0));
return 0;
}
//static int dib7000p_cfg_gpio(struct dib7000p_state *st, uint8_t num, uint8_t dir, uint8_t val)
int dib7000p_cfg_gpio(struct dib7000p_state *st, uint8_t num, uint8_t dir, uint8_t val)
{
st->gpio_dir = dib7000p_read_word(st, 1029);
st->gpio_dir &= ~(1 << num); /* reset the direction bit */
st->gpio_dir |= (dir & 0x1) << 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 & 0x01) << num; /* set the new value */
dib7000p_write_word(st, 1030, st->gpio_val);
return DIB_RETURN_SUCCESS;
}
int dib7000p_reset_gpio(struct dib7000p_state *st)
{
/* reset the GPIOs */
dbgpl(&dib7000p_dbg, "gpio dir: %x: val: %x, pwm_pos: %x",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 DIB_RETURN_SUCCESS;
}
int dib7000p_set_power_mode(struct dib7000p_state *state, enum dib7000p_power_mode mode)
{
/* by default everything is powered off */
uint16_t reg_774 = 0x3fff, reg_775 = 0xffff, reg_776 = 0x0007, reg_899 = 0x0003,
//reg_1280 = (0xfe00) | (dib7000p_read_word(state, 1280) & 0x01ff);
reg_1280, read_reg_1280;
read_reg_1280 = dib7000p_read_word(state, 1280);
read_reg_1280 = read_reg_1280 & 0x01ff;
reg_1280 = 0xfe00 | read_reg_1280;
/* now, depending on the requested mode, we power on */
switch (mode) {
/* power up everything in the demod */
case DIB7000P_POWER_ALL:
reg_774 = 0x0000; reg_775 = 0x0000; reg_776 = 0x0; reg_899 = 0x0; reg_1280 &= 0x01ff;
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 */
reg_1280 &= ~((1 << 11));
/* fall through wanted to enable the interfaces */
/* just leave power on the control-interfaces: GPIO and (I2C or SDIO) */
case DIB7000P_POWER_INTERFACE_ONLY: /* TODO power up either SDIO or I2C */
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 */
#if 0
case DIB7000_POWER_LEVEL_INTERF_ANALOG_AGC:
/* dem, cfg, iqc, sad, agc */
reg_774 &= ~((1 << 15) | (1 << 14) | (1 << 11) | (1 << 10) | (1 << 9));
/* sdio, i2c, gpio */
reg_1280 &= ~((1 << 13) | (1 << 12) | (1 << 10));
break;
case DIB7000_POWER_LEVEL_DOWN_COR4_DINTLV_ICIRM_EQUAL_CFROD:
reg_774 = 0;
/* power down: cor4 dintlv equal */
reg_775 = (1 << 15) | (1 << 6) | (1 << 5);
reg_776 = 0;
reg_899 = 0;
reg_1280 &= 0x01ff;
break;
case DIB7000_POWER_LEVEL_DOWN_COR4_CRY_ESRAM_MOUT_NUD:
reg_774 = 0;
/* power down: cor4 */
reg_775 = (1 << 15);
/* nud */
reg_776 = (1 << 0);
reg_899 = 0;
reg_1280 &= 0x01ff;
break;
#endif
}
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, 899, reg_899);
dib7000p_write_word(state, 1280, reg_1280);
return DIB_RETURN_SUCCESS;
}
