static int tda18271_tune(struct dvb_frontend *fe,
struct tda18271_std_map_item *map, u32 freq, u32 bw)
{
struct tda18271_priv *priv = fe->tuner_priv;
int ret;
tda_dbg("freq = %d, ifc = %d, bw = %d, agc_mode = %d, std = %d\n",
freq, map->if_freq, bw, map->agc_mode, map->std);
ret = tda18271_agc(fe);
if (tda_fail(ret))
tda_warn("failed to configure agc\n");
ret = tda18271_init(fe);
if (tda_fail(ret))
goto fail;
mutex_lock(&priv->lock);
switch (priv->id) {
case TDA18271HDC1:
tda18271c1_rf_tracking_filter_calibration(fe, freq, bw);
break;
case TDA18271HDC2:
tda18271c2_rf_tracking_filters_correction(fe, freq);
break;
}
ret = tda18271_channel_configuration(fe, map, freq, bw);
mutex_unlock(&priv->lock);
fail:
return ret;
}
static int tda18271_set_params(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
u32 delsys = c->delivery_system;
u32 bw = c->bandwidth_hz;
u32 freq = c->frequency;
struct tda18271_priv *priv = fe->tuner_priv;
struct tda18271_std_map *std_map = &priv->std;
struct tda18271_std_map_item *map;
int ret;
priv->mode = TDA18271_DIGITAL;
switch (delsys) {
case SYS_ATSC:
map = &std_map->atsc_6;
bw = 6000000;
break;
case SYS_ISDBT:
case SYS_DVBT:
case SYS_DVBT2:
if (bw <= 6000000) {
map = &std_map->dvbt_6;
} else if (bw <= 7000000) {
map = &std_map->dvbt_7;
} else {
map = &std_map->dvbt_8;
}
break;
case SYS_DVBC_ANNEX_B:
bw = 6000000;
/* falltrough */
case SYS_DVBC_ANNEX_A:
case SYS_DVBC_ANNEX_C:
if (bw <= 6000000) {
map = &std_map->qam_6;
} else if (bw <= 7000000) {
map = &std_map->qam_7;
} else {
map = &std_map->qam_8;
}
break;
default:
tda_warn("modulation type not supported!\n");
return -EINVAL;
}
/* When tuning digital, the analog demod must be tri-stated */
if (fe->ops.analog_ops.standby)
fe->ops.analog_ops.standby(fe);
ret = tda18271_tune(fe, map, freq, bw);
if (tda_fail(ret))
goto fail;
priv->if_freq = map->if_freq;
priv->frequency = freq;
priv->bandwidth = bw;
fail:
return ret;
}
static int tda18271_set_params(struct dvb_frontend *fe,
struct dvb_frontend_parameters *params)
{
struct tda18271_priv *priv = fe->tuner_priv;
struct tda18271_std_map *std_map = &priv->std;
struct tda18271_std_map_item *map;
int ret;
u32 bw, freq = params->frequency;
priv->mode = TDA18271_DIGITAL;
if (fe->ops.info.type == FE_ATSC) {
switch (params->u.vsb.modulation) {
case VSB_8:
case VSB_16:
map = &std_map->atsc_6;
break;
case QAM_64:
case QAM_256:
map = &std_map->qam_6;
break;
default:
tda_warn("modulation not set!\n");
return -EINVAL;
}
#if 0 /* keep */
/* userspace request is already center adjusted */
freq += 1750000; /* Adjust to center (+1.75MHZ) */
#endif
bw = 6000000;
} else if (fe->ops.info.type == FE_OFDM) {
switch (params->u.ofdm.bandwidth) {
case BANDWIDTH_6_MHZ:
bw = 6000000;
map = &std_map->dvbt_6;
break;
case BANDWIDTH_7_MHZ:
bw = 7000000;
map = &std_map->dvbt_7;
break;
case BANDWIDTH_8_MHZ:
bw = 8000000;
map = &std_map->dvbt_8;
break;
default:
tda_warn("bandwidth not set!\n");
return -EINVAL;
}
} else {
tda_warn("modulation type not supported!\n");
return -EINVAL;
}
/* When tuning digital, the analog demod must be tri-stated */
if (fe->ops.analog_ops.standby)
fe->ops.analog_ops.standby(fe);
ret = tda18271_tune(fe, map, freq, bw);
if (tda_fail(ret))
goto fail;
priv->frequency = freq;
priv->bandwidth = (fe->ops.info.type == FE_OFDM) ?
params->u.ofdm.bandwidth : 0;
fail:
return ret;
}