static void as102_fe_copy_tune_parameters(struct as10x_tune_args *tune_args,
struct dtv_frontend_properties *params)
{
/* set frequency */
tune_args->freq = params->frequency / 1000;
/* fix interleaving_mode */
tune_args->interleaving_mode = INTLV_NATIVE;
switch (params->bandwidth_hz) {
case 8000000:
tune_args->bandwidth = BW_8_MHZ;
break;
case 7000000:
tune_args->bandwidth = BW_7_MHZ;
break;
case 6000000:
tune_args->bandwidth = BW_6_MHZ;
break;
default:
tune_args->bandwidth = BW_8_MHZ;
}
switch (params->guard_interval) {
case GUARD_INTERVAL_1_32:
tune_args->guard_interval = GUARD_INT_1_32;
break;
case GUARD_INTERVAL_1_16:
tune_args->guard_interval = GUARD_INT_1_16;
break;
case GUARD_INTERVAL_1_8:
tune_args->guard_interval = GUARD_INT_1_8;
break;
case GUARD_INTERVAL_1_4:
tune_args->guard_interval = GUARD_INT_1_4;
break;
case GUARD_INTERVAL_AUTO:
default:
tune_args->guard_interval = GUARD_UNKNOWN;
break;
}
switch (params->modulation) {
case QPSK:
tune_args->modulation = CONST_QPSK;
break;
case QAM_16:
tune_args->modulation = CONST_QAM16;
break;
case QAM_64:
tune_args->modulation = CONST_QAM64;
break;
default:
tune_args->modulation = CONST_UNKNOWN;
break;
}
switch (params->transmission_mode) {
case TRANSMISSION_MODE_2K:
tune_args->transmission_mode = TRANS_MODE_2K;
break;
case TRANSMISSION_MODE_8K:
tune_args->transmission_mode = TRANS_MODE_8K;
break;
default:
tune_args->transmission_mode = TRANS_MODE_UNKNOWN;
}
switch (params->hierarchy) {
case HIERARCHY_NONE:
tune_args->hierarchy = HIER_NONE;
break;
case HIERARCHY_1:
tune_args->hierarchy = HIER_ALPHA_1;
break;
case HIERARCHY_2:
tune_args->hierarchy = HIER_ALPHA_2;
break;
case HIERARCHY_4:
tune_args->hierarchy = HIER_ALPHA_4;
break;
case HIERARCHY_AUTO:
tune_args->hierarchy = HIER_UNKNOWN;
break;
}
dprintk(debug, "tuner parameters: freq: %d bw: 0x%02x gi: 0x%02x\n",
params->frequency,
tune_args->bandwidth,
tune_args->guard_interval);
/*
* Detect a hierarchy selection
* if HP/LP are both set to FEC_NONE, HP will be selected.
*/
if ((tune_args->hierarchy != HIER_NONE) &&
((params->code_rate_LP == FEC_NONE) ||
(params->code_rate_HP == FEC_NONE))) {
if (params->code_rate_LP == FEC_NONE) {
tune_args->hier_select = HIER_HIGH_PRIORITY;
tune_args->code_rate =
as102_fe_get_code_rate(params->code_rate_HP);
}
if (params->code_rate_HP == FEC_NONE) {
tune_args->hier_select = HIER_LOW_PRIORITY;
tune_args->code_rate =
as102_fe_get_code_rate(params->code_rate_LP);
}
dprintk(debug, "\thierarchy: 0x%02x "
"selected: %s code_rate_%s: 0x%02x\n",
tune_args->hierarchy,
tune_args->hier_select == HIER_HIGH_PRIORITY ?
"HP" : "LP",
tune_args->hier_select == HIER_HIGH_PRIORITY ?
"HP" : "LP",
tune_args->code_rate);
} else {
tune_args->code_rate =
as102_fe_get_code_rate(params->code_rate_HP);
}
}
static int as102_fe_set_frontend(struct dvb_frontend *fe)
{
struct as102_state *state = fe->demodulator_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct as10x_tune_args tune_args = { 0 };
/* set frequency */
tune_args.freq = c->frequency / 1000;
/* fix interleaving_mode */
tune_args.interleaving_mode = INTLV_NATIVE;
switch (c->bandwidth_hz) {
case 8000000:
tune_args.bandwidth = BW_8_MHZ;
break;
case 7000000:
tune_args.bandwidth = BW_7_MHZ;
break;
case 6000000:
tune_args.bandwidth = BW_6_MHZ;
break;
default:
tune_args.bandwidth = BW_8_MHZ;
}
switch (c->guard_interval) {
case GUARD_INTERVAL_1_32:
tune_args.guard_interval = GUARD_INT_1_32;
break;
case GUARD_INTERVAL_1_16:
tune_args.guard_interval = GUARD_INT_1_16;
break;
case GUARD_INTERVAL_1_8:
tune_args.guard_interval = GUARD_INT_1_8;
break;
case GUARD_INTERVAL_1_4:
tune_args.guard_interval = GUARD_INT_1_4;
break;
case GUARD_INTERVAL_AUTO:
default:
tune_args.guard_interval = GUARD_UNKNOWN;
break;
}
switch (c->modulation) {
case QPSK:
tune_args.modulation = CONST_QPSK;
break;
case QAM_16:
tune_args.modulation = CONST_QAM16;
break;
case QAM_64:
tune_args.modulation = CONST_QAM64;
break;
default:
tune_args.modulation = CONST_UNKNOWN;
break;
}
switch (c->transmission_mode) {
case TRANSMISSION_MODE_2K:
tune_args.transmission_mode = TRANS_MODE_2K;
break;
case TRANSMISSION_MODE_8K:
tune_args.transmission_mode = TRANS_MODE_8K;
break;
default:
tune_args.transmission_mode = TRANS_MODE_UNKNOWN;
}
switch (c->hierarchy) {
case HIERARCHY_NONE:
tune_args.hierarchy = HIER_NONE;
break;
case HIERARCHY_1:
tune_args.hierarchy = HIER_ALPHA_1;
break;
case HIERARCHY_2:
tune_args.hierarchy = HIER_ALPHA_2;
break;
case HIERARCHY_4:
tune_args.hierarchy = HIER_ALPHA_4;
break;
case HIERARCHY_AUTO:
tune_args.hierarchy = HIER_UNKNOWN;
break;
}
pr_debug("as102: tuner parameters: freq: %d bw: 0x%02x gi: 0x%02x\n",
c->frequency,
tune_args.bandwidth,
tune_args.guard_interval);
/*
* Detect a hierarchy selection
* if HP/LP are both set to FEC_NONE, HP will be selected.
*/
if ((tune_args.hierarchy != HIER_NONE) &&
((c->code_rate_LP == FEC_NONE) ||
(c->code_rate_HP == FEC_NONE))) {
if (c->code_rate_LP == FEC_NONE) {
tune_args.hier_select = HIER_HIGH_PRIORITY;
tune_args.code_rate =
as102_fe_get_code_rate(c->code_rate_HP);
}
if (c->code_rate_HP == FEC_NONE) {
tune_args.hier_select = HIER_LOW_PRIORITY;
tune_args.code_rate =
as102_fe_get_code_rate(c->code_rate_LP);
}
pr_debug("as102: \thierarchy: 0x%02x selected: %s code_rate_%s: 0x%02x\n",
tune_args.hierarchy,
tune_args.hier_select == HIER_HIGH_PRIORITY ?
"HP" : "LP",
tune_args.hier_select == HIER_HIGH_PRIORITY ?
"HP" : "LP",
tune_args.code_rate);
} else {
tune_args.code_rate =
as102_fe_get_code_rate(c->code_rate_HP);
}
/* Set frontend arguments */
return state->ops->set_tune(state->priv, &tune_args);
}
