//! tune the given frontend, return the exact value
double tune(const std::string &which, const double freq)
{
boost::lock_guard<boost::mutex> lock(_mutex);
//clip to known bounds
const meta_range_t freq_range = ad9361_ctrl::get_rf_freq_range();
const double clipped_freq = freq_range.clip(freq);
const double value = ad9361_ctrl::get_rf_freq_range().clip(clipped_freq);
ad9361_device_t::direction_t direction = _get_direction_from_antenna(which);
double return_val = _device.tune(direction, value);
return return_val;
}
//! tune the given frontend, return the exact value
double tune(const std::string &which, const double freq)
{
//clip to known bounds
const meta_range_t freq_range = ad9361_ctrl::get_rf_freq_range();
const double clipped_freq = freq_range.clip(freq);
ad9361_transaction_t request;
if (which[0] == 'R') request.action = AD9361_ACTION_SET_RX_FREQ;
if (which[0] == 'T') request.action = AD9361_ACTION_SET_TX_FREQ;
const double value = ad9361_ctrl::get_rf_freq_range().clip(clipped_freq);
ad9361_double_pack(value, request.value.freq);
const ad9361_transaction_t reply = this->do_transaction(request);
return ad9361_double_unpack(reply.value.freq);
}
//! set a new clock rate, return the exact value
double set_clock_rate(const double rate)
{
//warning for known trouble rates
if (rate > 56e6) UHD_MSG(warning) << boost::format(
"The requested clock rate %f MHz may cause slow configuration.\n"
"The driver recommends a master clock rate less than %f MHz.\n"
) % (rate/1e6) % 56.0 << std::endl;
//clip to known bounds
const meta_range_t clock_rate_range = ad9361_ctrl::get_clock_rate_range();
const double clipped_rate = clock_rate_range.clip(rate);
ad9361_transaction_t request;
request.action = AD9361_ACTION_SET_CLOCK_RATE;
ad9361_double_pack(clipped_rate, request.value.rate);
const ad9361_transaction_t reply = this->do_transaction(request);
return ad9361_double_unpack(reply.value.rate);
}
//! set a new clock rate, return the exact value
double set_clock_rate(const double rate)
{
boost::lock_guard<boost::mutex> lock(_mutex);
// Changing clock rate will disrupt AD9361's sample clock
_use_safe_spi();
//clip to known bounds
const meta_range_t clock_rate_range = ad9361_ctrl::get_clock_rate_range();
const double clipped_rate = clock_rate_range.clip(rate);
if (clipped_rate != rate) {
UHD_MSG(warning) << boost::format(
"The requested master_clock_rate %f MHz exceeds bounds imposed by UHD.\n"
"The master_clock_rate has been forced to %f MHz.\n"
) % (rate/1e6) % (clipped_rate/1e6) << std::endl;
}
double return_rate = _device.set_clock_rate(clipped_rate);
_use_timed_spi();
return return_rate;
}