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//
// Copyright 2013-2014 Ettus Research LLC
// Copyright 2018 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: GPL-3.0-or-later
//
#include "b200_cores.hpp"
#include "b200_impl.hpp"
#include "b200_regs.hpp"
#include <mutex>
b200_local_spi_core::b200_local_spi_core(uhd::wb_iface::sptr iface, perif_t default_perif)
: _spi_core(spi_core_3000::make(iface, TOREG(SR_CORE_SPI), RB32_CORE_SPI))
, _current_perif(default_perif)
, _last_perif(default_perif)
{
change_perif(default_perif);
}
uint32_t b200_local_spi_core::transact_spi(int which_slave,
const uhd::spi_config_t& config,
uint32_t data,
size_t num_bits,
bool readback)
{
std::lock_guard<std::mutex> lock(_mutex);
return _spi_core->transact_spi(which_slave, config, data, num_bits, readback);
}
void b200_local_spi_core::change_perif(perif_t perif)
{
std::lock_guard<std::mutex> lock(_mutex);
_last_perif = _current_perif;
_current_perif = perif;
switch (_current_perif) {
case CODEC:
_spi_core->set_divider(B200_BUS_CLOCK_RATE / AD9361_SPI_RATE);
break;
case PLL:
_spi_core->set_divider(B200_BUS_CLOCK_RATE / ADF4001_SPI_RATE);
break;
}
}
void b200_local_spi_core::restore_perif()
{
change_perif(_last_perif);
}
b200_ref_pll_ctrl::b200_ref_pll_ctrl(b200_local_spi_core::sptr spi)
: uhd::usrp::adf4001_ctrl(spi, ADF4001_SLAVENO), _spi(spi)
{
}
void b200_ref_pll_ctrl::set_lock_to_ext_ref(bool external)
{
_spi->change_perif(b200_local_spi_core::PLL);
adf4001_ctrl::set_lock_to_ext_ref(external);
_spi->restore_perif();
}
b200_local_spi_core::sptr b200_local_spi_core::make(
uhd::wb_iface::sptr iface, b200_local_spi_core::perif_t default_perif)
{
return sptr(new b200_local_spi_core(iface, default_perif));
}
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