mirror of
https://github.com/saymrwulf/uhd.git
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db6f3a2d7a
- Added b200_local_spi core that adjusts the divider when talking to the two chips - AD9361 rate is 1MHz and ADF4001 rate is 10kHz
83 lines
2.3 KiB
C++
83 lines
2.3 KiB
C++
//
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// Copyright 2013-2014 Ettus Research LLC
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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#include "b200_cores.hpp"
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#include "b200_regs.hpp"
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#include "b200_impl.hpp"
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b200_local_spi_core::b200_local_spi_core(
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uhd::wb_iface::sptr iface,
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perif_t default_perif) :
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_spi_core(spi_core_3000::make(iface, TOREG(SR_CORE_SPI), RB32_CORE_SPI)),
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_current_perif(default_perif),
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_last_perif(default_perif)
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{
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change_perif(default_perif);
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}
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boost::uint32_t b200_local_spi_core::transact_spi(
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int which_slave,
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const uhd::spi_config_t &config,
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boost::uint32_t data,
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size_t num_bits,
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bool readback)
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{
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boost::mutex::scoped_lock lock(_mutex);
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return _spi_core->transact_spi(which_slave, config, data, num_bits, readback);
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}
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void b200_local_spi_core::change_perif(perif_t perif)
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{
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boost::mutex::scoped_lock lock(_mutex);
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_last_perif = _current_perif;
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_current_perif = perif;
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switch (_current_perif) {
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case CODEC:
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_spi_core->set_divider(B200_BUS_CLOCK_RATE/AD9361_SPI_RATE);
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break;
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case PLL:
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_spi_core->set_divider(B200_BUS_CLOCK_RATE/ADF4001_SPI_RATE);
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break;
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}
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}
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void b200_local_spi_core::restore_perif()
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{
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change_perif(_last_perif);
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}
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b200_ref_pll_ctrl::b200_ref_pll_ctrl(b200_local_spi_core::sptr spi) :
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uhd::usrp::adf4001_ctrl(spi, ADF4001_SLAVENO),
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_spi(spi)
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{
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}
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void b200_ref_pll_ctrl::set_lock_to_ext_ref(bool external)
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{
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_spi->change_perif(b200_local_spi_core::PLL);
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adf4001_ctrl::set_lock_to_ext_ref(external);
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_spi->restore_perif();
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}
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b200_local_spi_core::sptr b200_local_spi_core::make(
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uhd::wb_iface::sptr iface, b200_local_spi_core::perif_t default_perif)
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{
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return sptr(new b200_local_spi_core(iface, default_perif));
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}
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