diff options
Diffstat (limited to 'host/lib/usrp/usrp2/mboard_impl.cpp')
| -rw-r--r-- | host/lib/usrp/usrp2/mboard_impl.cpp | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/host/lib/usrp/usrp2/mboard_impl.cpp b/host/lib/usrp/usrp2/mboard_impl.cpp new file mode 100644 index 000000000..f17efd88e --- /dev/null +++ b/host/lib/usrp/usrp2/mboard_impl.cpp @@ -0,0 +1,247 @@ +// +// Copyright 2010 Ettus Research LLC +// +// This program is free software: you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see <http://www.gnu.org/licenses/>. +// + +#include "usrp2_impl.hpp" +#include "usrp2_regs.hpp" +#include <uhd/usrp/mboard_props.hpp> +#include <uhd/utils/assert.hpp> +#include <uhd/utils/algorithm.hpp> +#include <uhd/types/mac_addr.hpp> +#include <uhd/types/dict.hpp> +#include <boost/bind.hpp> +#include <boost/asio/ip/address_v4.hpp> +#include <boost/assign/list_of.hpp> + +using namespace uhd; +using namespace uhd::usrp; + +/*********************************************************************** + * Helper Methods + **********************************************************************/ +void usrp2_impl::mboard_init(void){ + _mboard_proxy = wax_obj_proxy::make( + boost::bind(&usrp2_impl::mboard_get, this, _1, _2), + boost::bind(&usrp2_impl::mboard_set, this, _1, _2) + ); +} + +void usrp2_impl::init_clock_config(void){ + //setup the clock configuration settings + _clock_config.ref_source = clock_config_t::REF_INT; + _clock_config.pps_source = clock_config_t::PPS_SMA; + _clock_config.pps_polarity = clock_config_t::PPS_NEG; + + //update the clock config (sends a control packet) + update_clock_config(); +} + +void usrp2_impl::update_clock_config(void){ + boost::uint32_t pps_flags = 0; + + //translate pps source enums + switch(_clock_config.pps_source){ + case clock_config_t::PPS_SMA: pps_flags |= FRF_TIME64_PPS_SMA; break; + case clock_config_t::PPS_MIMO: pps_flags |= FRF_TIME64_PPS_MIMO; break; + default: throw std::runtime_error("usrp2: unhandled clock configuration pps source"); + } + + //translate pps polarity enums + switch(_clock_config.pps_polarity){ + case clock_config_t::PPS_POS: pps_flags |= FRF_TIME64_PPS_POSEDGE; break; + case clock_config_t::PPS_NEG: pps_flags |= FRF_TIME64_PPS_NEGEDGE; break; + default: throw std::runtime_error("usrp2: unhandled clock configuration pps polarity"); + } + + //set the pps flags + _iface->poke32(FR_TIME64_FLAGS, pps_flags); + + //clock source ref 10mhz + switch(_clock_config.ref_source){ + case clock_config_t::REF_INT : _iface->poke32(FR_MISC_CTRL_CLOCK, 0x10); break; + case clock_config_t::REF_SMA : _iface->poke32(FR_MISC_CTRL_CLOCK, 0x1C); break; + case clock_config_t::REF_MIMO: _iface->poke32(FR_MISC_CTRL_CLOCK, 0x15); break; + default: throw std::runtime_error("usrp2: unhandled clock configuration reference source"); + } + + //clock source ref 10mhz + bool use_external = _clock_config.ref_source != clock_config_t::REF_INT; + _clock_ctrl->enable_external_ref(use_external); +} + +void usrp2_impl::set_time_spec(const time_spec_t &time_spec, bool now){ + //set ticks and seconds + _iface->poke32(FR_TIME64_SECS, time_spec.secs); + _iface->poke32(FR_TIME64_TICKS, time_spec.get_ticks(get_master_clock_freq())); + + //set the register to latch it all in + boost::uint32_t imm_flags = (now)? FRF_TIME64_LATCH_NOW : FRF_TIME64_LATCH_NEXT_PPS; + _iface->poke32(FR_TIME64_IMM, imm_flags); +} + +void usrp2_impl::issue_ddc_stream_cmd(const stream_cmd_t &stream_cmd){ + UHD_ASSERT_THROW(stream_cmd.num_samps <= FR_RX_CTRL_MAX_SAMPS_PER_CMD); + + //setup the mode to instruction flags + typedef boost::tuple<bool, bool, bool> inst_t; + static const uhd::dict<stream_cmd_t::stream_mode_t, inst_t> mode_to_inst = boost::assign::map_list_of + //reload, chain, samps + (stream_cmd_t::STREAM_MODE_START_CONTINUOUS, inst_t(true, true, false)) + (stream_cmd_t::STREAM_MODE_STOP_CONTINUOUS, inst_t(false, false, false)) + (stream_cmd_t::STREAM_MODE_NUM_SAMPS_AND_DONE, inst_t(false, false, true)) + (stream_cmd_t::STREAM_MODE_NUM_SAMPS_AND_MORE, inst_t(false, true, true)) + ; + + //setup the instruction flag values + bool inst_reload, inst_chain, inst_samps; + boost::tie(inst_reload, inst_chain, inst_samps) = mode_to_inst[stream_cmd.stream_mode]; + + //issue the stream command + _iface->poke32(FR_RX_CTRL_STREAM_CMD, FR_RX_CTRL_MAKE_CMD( + (inst_samps)? stream_cmd.num_samps : ((inst_chain)? get_max_recv_samps_per_packet() : 1), + (stream_cmd.stream_now)? 1 : 0, + (inst_chain)? 1 : 0, + (inst_reload)? 1 : 0 + )); + _iface->poke32(FR_RX_CTRL_TIME_SECS, stream_cmd.time_spec.secs); + _iface->poke32(FR_RX_CTRL_TIME_TICKS, stream_cmd.time_spec.get_ticks(get_master_clock_freq())); +} + +/*********************************************************************** + * MBoard Get Properties + **********************************************************************/ +void usrp2_impl::mboard_get(const wax::obj &key_, wax::obj &val){ + wax::obj key; std::string name; + boost::tie(key, name) = extract_named_prop(key_); + + //handle the other props + if (key.type() == typeid(std::string)){ + if (key.as<std::string>() == "mac-addr"){ + byte_vector_t bytes = _iface->read_eeprom(I2C_ADDR_MBOARD, EE_MBOARD_MAC_ADDR, 6); + val = mac_addr_t::from_bytes(bytes).to_string(); + return; + } + + if (key.as<std::string>() == "ip-addr"){ + boost::asio::ip::address_v4::bytes_type bytes; + std::copy(_iface->read_eeprom(I2C_ADDR_MBOARD, EE_MBOARD_IP_ADDR, 4), bytes); + val = boost::asio::ip::address_v4(bytes).to_string(); + return; + } + } + + //handle the get request conditioned on the key + switch(key.as<mboard_prop_t>()){ + case MBOARD_PROP_NAME: + val = std::string("usrp2 mboard"); + return; + + case MBOARD_PROP_OTHERS:{ + prop_names_t others = boost::assign::list_of + ("mac-addr") + ("ip-addr") + ; + val = others; + } + return; + + case MBOARD_PROP_RX_DBOARD: + UHD_ASSERT_THROW(name == ""); + val = _rx_dboard_proxy->get_link(); + return; + + case MBOARD_PROP_RX_DBOARD_NAMES: + val = prop_names_t(1, ""); + return; + + case MBOARD_PROP_TX_DBOARD: + UHD_ASSERT_THROW(name == ""); + val = _tx_dboard_proxy->get_link(); + return; + + case MBOARD_PROP_TX_DBOARD_NAMES: + val = prop_names_t(1, ""); + return; + + case MBOARD_PROP_RX_DSP: + UHD_ASSERT_THROW(name == ""); + val = _rx_dsp_proxy->get_link(); + return; + + case MBOARD_PROP_RX_DSP_NAMES: + val = prop_names_t(1, ""); + return; + + case MBOARD_PROP_TX_DSP: + UHD_ASSERT_THROW(name == ""); + val = _tx_dsp_proxy->get_link(); + return; + + case MBOARD_PROP_TX_DSP_NAMES: + val = prop_names_t(1, ""); + return; + + case MBOARD_PROP_CLOCK_CONFIG: + val = _clock_config; + return; + + default: UHD_THROW_PROP_GET_ERROR(); + } +} + +/*********************************************************************** + * MBoard Set Properties + **********************************************************************/ +void usrp2_impl::mboard_set(const wax::obj &key, const wax::obj &val){ + //handle the other props + if (key.type() == typeid(std::string)){ + if (key.as<std::string>() == "mac-addr"){ + byte_vector_t bytes = mac_addr_t::from_string(val.as<std::string>()).to_bytes(); + _iface->write_eeprom(I2C_ADDR_MBOARD, EE_MBOARD_MAC_ADDR, bytes); + return; + } + + if (key.as<std::string>() == "ip-addr"){ + byte_vector_t bytes(4); + std::copy(boost::asio::ip::address_v4::from_string(val.as<std::string>()).to_bytes(), bytes); + _iface->write_eeprom(I2C_ADDR_MBOARD, EE_MBOARD_IP_ADDR, bytes); + return; + } + } + + //handle the get request conditioned on the key + switch(key.as<mboard_prop_t>()){ + + case MBOARD_PROP_CLOCK_CONFIG: + _clock_config = val.as<clock_config_t>(); + update_clock_config(); + return; + + case MBOARD_PROP_TIME_NOW: + set_time_spec(val.as<time_spec_t>(), true); + return; + + case MBOARD_PROP_TIME_NEXT_PPS: + set_time_spec(val.as<time_spec_t>(), false); + return; + + case MBOARD_PROP_STREAM_CMD: + issue_ddc_stream_cmd(val.as<stream_cmd_t>()); + return; + + default: UHD_THROW_PROP_SET_ERROR(); + } +} |